src/screens.c

   1 // ============================================================================
   2 // Rocks'n'Diamonds - McDuffin Strikes Back!
   3 // ----------------------------------------------------------------------------
   4 // (c) 1995-2014 by Artsoft Entertainment
   5 //                  Holger Schemel
   6 //                  info@artsoft.org
   7 //                  http://www.artsoft.org/
   8 // ----------------------------------------------------------------------------
   9 // screens.c
  10 // ============================================================================
  11
  12 #include "libgame/libgame.h"
  13
  14 #include "screens.h"
  15 #include "events.h"
  16 #include "game.h"
  17 #include "tools.h"
  18 #include "editor.h"
  19 #include "files.h"
  20 #include "tape.h"
  21 #include "anim.h"
  22 #include "network.h"
  23 #include "init.h"
  24 #include "config.h"
  25
  26
  27 #define DEBUG_JOYSTICKS         0
  28
  29
  30 // screens on the info screen
  31 #define INFO_MODE_MAIN                  0
  32 #define INFO_MODE_TITLE                 1
  33 #define INFO_MODE_ELEMENTS              2
  34 #define INFO_MODE_MUSIC                 3
  35 #define INFO_MODE_CREDITS               4
  36 #define INFO_MODE_PROGRAM               5
  37 #define INFO_MODE_VERSION               6
  38 #define INFO_MODE_LEVELSET              7
  39
  40 #define MAX_INFO_MODES                  8
  41
  42 // screens on the setup screen
  43 // (must match GFX_SPECIAL_ARG_SETUP_* values as defined in src/main.h)
  44 // (should also match corresponding entries in src/conf_gfx.c)
  45 #define SETUP_MODE_MAIN                 0
  46 #define SETUP_MODE_GAME                 1
  47 #define SETUP_MODE_EDITOR               2
  48 #define SETUP_MODE_GRAPHICS             3
  49 #define SETUP_MODE_SOUND                4
  50 #define SETUP_MODE_ARTWORK              5
  51 #define SETUP_MODE_INPUT                6
  52 #define SETUP_MODE_TOUCH                7
  53 #define SETUP_MODE_SHORTCUTS            8
  54 #define SETUP_MODE_SHORTCUTS_1          9
  55 #define SETUP_MODE_SHORTCUTS_2          10
  56 #define SETUP_MODE_SHORTCUTS_3          11
  57 #define SETUP_MODE_SHORTCUTS_4          12
  58 #define SETUP_MODE_SHORTCUTS_5          13
  59
  60 // sub-screens on the setup screen (generic)
  61 #define SETUP_MODE_CHOOSE_ARTWORK       14
  62 #define SETUP_MODE_CHOOSE_OTHER         15
  63
  64 // sub-screens on the setup screen (specific)
  65 #define SETUP_MODE_CHOOSE_GAME_SPEED    16
  66 #define SETUP_MODE_CHOOSE_SCROLL_DELAY  17
  67 #define SETUP_MODE_CHOOSE_SNAPSHOT_MODE 18
  68 #define SETUP_MODE_CHOOSE_WINDOW_SIZE   19
  69 #define SETUP_MODE_CHOOSE_SCALING_TYPE  20
  70 #define SETUP_MODE_CHOOSE_RENDERING     21
  71 #define SETUP_MODE_CHOOSE_VSYNC         22
  72 #define SETUP_MODE_CHOOSE_GRAPHICS      23
  73 #define SETUP_MODE_CHOOSE_SOUNDS        24
  74 #define SETUP_MODE_CHOOSE_MUSIC         25
  75 #define SETUP_MODE_CHOOSE_VOLUME_SIMPLE 26
  76 #define SETUP_MODE_CHOOSE_VOLUME_LOOPS  27
  77 #define SETUP_MODE_CHOOSE_VOLUME_MUSIC  28
  78 #define SETUP_MODE_CHOOSE_TOUCH_CONTROL 29
  79 #define SETUP_MODE_CHOOSE_MOVE_DISTANCE 30
  80 #define SETUP_MODE_CHOOSE_DROP_DISTANCE 31
  81 #define SETUP_MODE_CHOOSE_TRANSPARENCY  32
  82 #define SETUP_MODE_CHOOSE_GRID_XSIZE_0  33
  83 #define SETUP_MODE_CHOOSE_GRID_YSIZE_0  34
  84 #define SETUP_MODE_CHOOSE_GRID_XSIZE_1  35
  85 #define SETUP_MODE_CHOOSE_GRID_YSIZE_1  36
  86 #define SETUP_MODE_CONFIG_VIRT_BUTTONS  37
  87
  88 #define MAX_SETUP_MODES                 38
  89
  90 #define MAX_MENU_MODES                  MAX(MAX_INFO_MODES, MAX_SETUP_MODES)
  91
  92 // setup screen titles
  93 #define STR_SETUP_MAIN                  "Setup"
  94 #define STR_SETUP_GAME                  "Game & Menu"
  95 #define STR_SETUP_EDITOR                "Editor"
  96 #define STR_SETUP_GRAPHICS              "Graphics"
  97 #define STR_SETUP_SOUND                 "Sound & Music"
  98 #define STR_SETUP_ARTWORK               "Custom Artwork"
  99 #define STR_SETUP_INPUT                 "Input Devices"
 100 #define STR_SETUP_TOUCH                 "Touch Controls"
 101 #define STR_SETUP_SHORTCUTS             "Key Shortcuts"
 102 #define STR_SETUP_EXIT                  "Exit"
 103 #define STR_SETUP_SAVE_AND_EXIT         "Save and Exit"
 104
 105 #define STR_SETUP_CHOOSE_GAME_SPEED     "Game Speed"
 106 #define STR_SETUP_CHOOSE_SCROLL_DELAY   "Scroll Delay"
 107 #define STR_SETUP_CHOOSE_SNAPSHOT_MODE  "Snapshot Mode"
 108 #define STR_SETUP_CHOOSE_WINDOW_SIZE    "Window Scaling"
 109 #define STR_SETUP_CHOOSE_SCALING_TYPE   "Anti-Aliasing"
 110 #define STR_SETUP_CHOOSE_RENDERING      "Rendering Mode"
 111 #define STR_SETUP_CHOOSE_VSYNC          "VSync Mode"
 112 #define STR_SETUP_CHOOSE_VOLUME_SIMPLE  "Sound Volume"
 113 #define STR_SETUP_CHOOSE_VOLUME_LOOPS   "Loops Volume"
 114 #define STR_SETUP_CHOOSE_VOLUME_MUSIC   "Music Volume"
 115 #define STR_SETUP_CHOOSE_TOUCH_CONTROL  "Control Type"
 116 #define STR_SETUP_CHOOSE_MOVE_DISTANCE  "Move Distance"
 117 #define STR_SETUP_CHOOSE_DROP_DISTANCE  "Drop Distance"
 118 #define STR_SETUP_CHOOSE_TRANSPARENCY   "Transparency"
 119 #define STR_SETUP_CHOOSE_GRID_XSIZE_0   "Horiz. Buttons"
 120 #define STR_SETUP_CHOOSE_GRID_YSIZE_0   "Vert. Buttons"
 121 #define STR_SETUP_CHOOSE_GRID_XSIZE_1   "Horiz. Buttons"
 122 #define STR_SETUP_CHOOSE_GRID_YSIZE_1   "Vert. Buttons"
 123
 124 // for input setup functions
 125 #define SETUPINPUT_SCREEN_POS_START     0
 126 #define SETUPINPUT_SCREEN_POS_EMPTY1    3
 127 #define SETUPINPUT_SCREEN_POS_EMPTY2    12
 128 #define SETUPINPUT_SCREEN_POS_END       13
 129
 130 #define MENU_SETUP_FONT_TITLE           FONT_TEXT_1
 131 #define MENU_SETUP_FONT_TEXT            FONT_TITLE_2
 132
 133 #define MAX_SETUP_TEXT_INPUT_LEN        28
 134
 135 // for various menu stuff
 136 #define MENU_SCREEN_START_XPOS          1
 137 #define MENU_SCREEN_START_YPOS          2
 138 #define MENU_SCREEN_VALUE_XPOS          (SCR_FIELDX - 3)
 139 #define MENU_SCREEN_MAX_XPOS            (SCR_FIELDX - 1)
 140 #define MENU_TITLE1_YPOS                8
 141 #define MENU_TITLE2_YPOS                46
 142 #define MENU_INFO_FONT_TITLE            FONT_TEXT_1
 143 #define MENU_INFO_FONT_HEAD             FONT_TEXT_2
 144 #define MENU_INFO_FONT_TEXT             FONT_TEXT_3
 145 #define MENU_INFO_FONT_FOOT             FONT_TEXT_4
 146 #define MENU_INFO_SPACE_HEAD            (menu.headline2_spacing_info[info_mode])
 147 #define MENU_SCREEN_INFO_SPACE_LEFT     (menu.left_spacing_info[info_mode])
 148 #define MENU_SCREEN_INFO_SPACE_RIGHT    (menu.right_spacing_info[info_mode])
 149 #define MENU_SCREEN_INFO_SPACE_TOP      (menu.top_spacing_info[info_mode])
 150 #define MENU_SCREEN_INFO_SPACE_BOTTOM   (menu.bottom_spacing_info[info_mode])
 151 #define MENU_SCREEN_INFO_YSTART1        MENU_SCREEN_INFO_SPACE_TOP
 152 #define MENU_SCREEN_INFO_YSTART2        (MENU_SCREEN_INFO_YSTART1 +            \
 153                                          getMenuTextStep(MENU_INFO_SPACE_HEAD, \
 154                                                          MENU_INFO_FONT_TITLE))
 155 #define MENU_SCREEN_INFO_YSTEP          (TILEY + 4)
 156 #define MENU_SCREEN_INFO_YBOTTOM        (SYSIZE - MENU_SCREEN_INFO_SPACE_BOTTOM)
 157 #define MENU_SCREEN_INFO_YSIZE          (MENU_SCREEN_INFO_YBOTTOM -     \
 158                                          MENU_SCREEN_INFO_YSTART2 -     \
 159                                          TILEY / 2)
 160 #define MAX_INFO_ELEMENTS_ON_SCREEN     128
 161 #define STD_INFO_ELEMENTS_ON_SCREEN     (MENU_SCREEN_INFO_YSIZE /       \
 162                                          MENU_SCREEN_INFO_YSTEP)
 163 #define NUM_INFO_ELEMENTS_FROM_CONF     \
 164   (menu.list_size_info[GFX_SPECIAL_ARG_INFO_ELEMENTS] > 0 ?             \
 165    menu.list_size_info[GFX_SPECIAL_ARG_INFO_ELEMENTS] :                 \
 166    MAX_MENU_ENTRIES_ON_SCREEN)
 167 #define NUM_INFO_ELEMENTS_ON_SCREEN     MIN(MIN(STD_INFO_ELEMENTS_ON_SCREEN, \
 168                                                 MAX_INFO_ELEMENTS_ON_SCREEN), \
 169                                             NUM_INFO_ELEMENTS_FROM_CONF)
 170 #define MAX_MENU_ENTRIES_ON_SCREEN      (SCR_FIELDY - MENU_SCREEN_START_YPOS)
 171 #define MAX_MENU_TEXT_LENGTH_BIG        13
 172 #define MAX_MENU_TEXT_LENGTH_MEDIUM     (MAX_MENU_TEXT_LENGTH_BIG * 2)
 173
 174 // screen gadget identifiers
 175 #define SCREEN_CTRL_ID_PREV_LEVEL       0
 176 #define SCREEN_CTRL_ID_NEXT_LEVEL       1
 177 #define SCREEN_CTRL_ID_PREV_PLAYER      2
 178 #define SCREEN_CTRL_ID_NEXT_PLAYER      3
 179 #define SCREEN_CTRL_ID_INSERT_SOLUTION  4
 180 #define SCREEN_CTRL_ID_PLAY_SOLUTION    5
 181 #define SCREEN_CTRL_ID_SCROLL_UP        6
 182 #define SCREEN_CTRL_ID_SCROLL_DOWN      7
 183 #define SCREEN_CTRL_ID_SCROLL_VERTICAL  8
 184 #define SCREEN_CTRL_ID_NETWORK_SERVER   9
 185
 186 #define NUM_SCREEN_GADGETS              10
 187
 188 #define NUM_SCREEN_MENUBUTTONS          6
 189 #define NUM_SCREEN_SCROLLBUTTONS        2
 190 #define NUM_SCREEN_SCROLLBARS           1
 191 #define NUM_SCREEN_TEXTINPUT            1
 192
 193 #define SCREEN_MASK_MAIN                (1 << 0)
 194 #define SCREEN_MASK_MAIN_HAS_SOLUTION   (1 << 1)
 195 #define SCREEN_MASK_INPUT               (1 << 2)
 196
 197 // graphic position and size values for buttons and scrollbars
 198 #define SC_MENUBUTTON_XSIZE             TILEX
 199 #define SC_MENUBUTTON_YSIZE             TILEY
 200
 201 #define SC_SCROLLBUTTON_XSIZE           TILEX
 202 #define SC_SCROLLBUTTON_YSIZE           TILEY
 203
 204 #define SC_SCROLLBAR_XPOS               (SXSIZE - SC_SCROLLBUTTON_XSIZE)
 205
 206 #define SC_SCROLL_VERTICAL_XSIZE        SC_SCROLLBUTTON_XSIZE
 207 #define SC_SCROLL_VERTICAL_YSIZE        ((MAX_MENU_ENTRIES_ON_SCREEN - 2) * \
 208                                          SC_SCROLLBUTTON_YSIZE)
 209
 210 #define SC_SCROLL_UP_XPOS               SC_SCROLLBAR_XPOS
 211 #define SC_SCROLL_UP_YPOS               (2 * SC_SCROLLBUTTON_YSIZE)
 212
 213 #define SC_SCROLL_VERTICAL_XPOS         SC_SCROLLBAR_XPOS
 214 #define SC_SCROLL_VERTICAL_YPOS         (SC_SCROLL_UP_YPOS + \
 215                                          SC_SCROLLBUTTON_YSIZE)
 216
 217 #define SC_SCROLL_DOWN_XPOS             SC_SCROLLBAR_XPOS
 218 #define SC_SCROLL_DOWN_YPOS             (SC_SCROLL_VERTICAL_YPOS + \
 219                                          SC_SCROLL_VERTICAL_YSIZE)
 220
 221 #define SC_BORDER_SIZE                  14
 222
 223
 224 // forward declarations of internal functions
 225 static void HandleScreenGadgets(struct GadgetInfo *);
 226 static void HandleSetupScreen_Generic(int, int, int, int, int);
 227 static void HandleSetupScreen_Input(int, int, int, int, int);
 228 static void CustomizeKeyboard(int);
 229 static void ConfigureJoystick(int);
 230 static void ConfigureVirtualButtons(void);
 231 static void execSetupGame(void);
 232 static void execSetupGraphics(void);
 233 static void execSetupSound(void);
 234 static void execSetupTouch(void);
 235 static void execSetupArtwork(void);
 236 static void HandleChooseTree(int, int, int, int, int, TreeInfo **);
 237
 238 static void DrawChooseLevelSet(void);
 239 static void DrawChooseLevelNr(void);
 240 static void DrawInfoScreen(void);
 241 static void DrawSetupScreen(void);
 242
 243 static void DrawInfoScreen_NotAvailable(char *, char *);
 244 static void DrawInfoScreen_HelpAnim(int, int, boolean);
 245 static void DrawInfoScreen_HelpText(int, int, int, int);
 246 static void HandleInfoScreen_Main(int, int, int, int, int);
 247 static void HandleInfoScreen_TitleScreen(int);
 248 static void HandleInfoScreen_Elements(int);
 249 static void HandleInfoScreen_Music(int);
 250 static void HandleInfoScreen_Credits(int);
 251 static void HandleInfoScreen_Program(int);
 252 static void HandleInfoScreen_Version(int);
 253
 254 static void ModifyGameSpeedIfNeeded(void);
 255 static void DisableVsyncIfNeeded(void);
 256
 257 static void MapScreenMenuGadgets(int);
 258 static void MapScreenGadgets(int);
 259 static void MapScreenTreeGadgets(TreeInfo *);
 260
 261 static void UpdateScreenMenuGadgets(int, boolean);
 262
 263 static struct GadgetInfo *screen_gadget[NUM_SCREEN_GADGETS];
 264
 265 static int info_mode = INFO_MODE_MAIN;
 266 static int setup_mode = SETUP_MODE_MAIN;
 267
 268 static TreeInfo *window_sizes = NULL;
 269 static TreeInfo *window_size_current = NULL;
 270
 271 static TreeInfo *scaling_types = NULL;
 272 static TreeInfo *scaling_type_current = NULL;
 273
 274 static TreeInfo *rendering_modes = NULL;
 275 static TreeInfo *rendering_mode_current = NULL;
 276
 277 static TreeInfo *vsync_modes = NULL;
 278 static TreeInfo *vsync_mode_current = NULL;
 279
 280 static TreeInfo *scroll_delays = NULL;
 281 static TreeInfo *scroll_delay_current = NULL;
 282
 283 static TreeInfo *snapshot_modes = NULL;
 284 static TreeInfo *snapshot_mode_current = NULL;
 285
 286 static TreeInfo *game_speeds_normal = NULL;
 287 static TreeInfo *game_speeds_extended = NULL;
 288 static TreeInfo *game_speeds = NULL;
 289 static TreeInfo *game_speed_current = NULL;
 290
 291 static TreeInfo *volumes_simple = NULL;
 292 static TreeInfo *volume_simple_current = NULL;
 293
 294 static TreeInfo *volumes_loops = NULL;
 295 static TreeInfo *volume_loops_current = NULL;
 296
 297 static TreeInfo *volumes_music = NULL;
 298 static TreeInfo *volume_music_current = NULL;
 299
 300 static TreeInfo *touch_controls = NULL;
 301 static TreeInfo *touch_control_current = NULL;
 302
 303 static TreeInfo *move_distances = NULL;
 304 static TreeInfo *move_distance_current = NULL;
 305
 306 static TreeInfo *drop_distances = NULL;
 307 static TreeInfo *drop_distance_current = NULL;
 308
 309 static TreeInfo *transparencies = NULL;
 310 static TreeInfo *transparency_current = NULL;
 311
 312 static TreeInfo *grid_sizes[2][2] = { { NULL, NULL }, { NULL, NULL } };
 313 static TreeInfo *grid_size_current[2][2] = { { NULL, NULL }, { NULL, NULL } };
 314
 315 static TreeInfo *level_number = NULL;
 316 static TreeInfo *level_number_current = NULL;
 317
 318 static struct ValueTextInfo window_sizes_list[] =
 319 {
 320   {     50,     "50 %"                          },
 321   {     80,     "80 %"                          },
 322   {     90,     "90 %"                          },
 323   {     100,    "100 % (Default)"               },
 324   {     110,    "110 %"                         },
 325   {     120,    "120 %"                         },
 326   {     130,    "130 %"                         },
 327   {     140,    "140 %"                         },
 328   {     150,    "150 %"                         },
 329   {     200,    "200 %"                         },
 330   {     250,    "250 %"                         },
 331   {     300,    "300 %"                         },
 332
 333   {     -1,     NULL                            },
 334 };
 335
 336 static struct StringValueTextInfo scaling_types_list[] =
 337 {
 338   {     SCALING_QUALITY_NEAREST, "Off"          },
 339   {     SCALING_QUALITY_LINEAR,  "Linear"       },
 340   {     SCALING_QUALITY_BEST,    "Anisotropic"  },
 341
 342   {     NULL,                    NULL           },
 343 };
 344
 345 static struct StringValueTextInfo rendering_modes_list[] =
 346 {
 347   {     STR_SPECIAL_RENDERING_OFF,      "Off (May show artifacts, fast)" },
 348   {     STR_SPECIAL_RENDERING_BITMAP,   "Bitmap/Texture mode (slower)"   },
 349 #if DEBUG
 350   // this mode may work under certain conditions, but does not work on Windows
 351   {     STR_SPECIAL_RENDERING_TARGET,   "Target Texture mode (slower)"   },
 352 #endif
 353   {     STR_SPECIAL_RENDERING_DOUBLE,   "Double Texture mode (slower)"   },
 354
 355   {     NULL,                            NULL                            },
 356 };
 357
 358 static struct StringValueTextInfo vsync_modes_list[] =
 359 {
 360   {     STR_VSYNC_MODE_OFF,             "Off"           },
 361   {     STR_VSYNC_MODE_NORMAL,          "Normal"        },
 362   {     STR_VSYNC_MODE_ADAPTIVE,        "Adaptive"      },
 363
 364   {     NULL,                            NULL           },
 365 };
 366
 367 static struct ValueTextInfo game_speeds_list_normal[] =
 368 {
 369   {     30,     "Very Slow"                     },
 370   {     25,     "Slow"                          },
 371   {     20,     "Normal"                        },
 372   {     15,     "Fast"                          },
 373   {     10,     "Very Fast"                     },
 374
 375   {     -1,     NULL                            },
 376 };
 377
 378 static struct ValueTextInfo game_speeds_list_extended[] =
 379 {
 380   {     1000,   "1 fps (Extremely Slow)"        },
 381   {     500,    "2 fps"                         },
 382   {     200,    "5 fps"                         },
 383   {     100,    "10 fps"                        },
 384   {     50,     "20 fps"                        },
 385   {     29,     "35 fps (Original Supaplex)"    },
 386   {     25,     "40 fps"                        },
 387   {     20,     "50 fps (=== Normal Speed ===)" },
 388   {     16,     "60 fps (60 Hz VSync Speed)"    },
 389   {     14,     "70 fps (Maximum Supaplex)"     },
 390   {     10,     "100 fps"                       },
 391   {     5,      "200 fps"                       },
 392   {     2,      "500 fps"                       },
 393   {     1,      "1000 fps (Extremely Fast)"     },
 394
 395   {     -1,     NULL                            },
 396 };
 397
 398 static struct ValueTextInfo *game_speeds_list;
 399
 400 static struct ValueTextInfo scroll_delays_list[] =
 401 {
 402   {     0,      "0 Tiles (No Scroll Delay)"     },
 403   {     1,      "1 Tile"                        },
 404   {     2,      "2 Tiles"                       },
 405   {     3,      "3 Tiles (Default)"             },
 406   {     4,      "4 Tiles"                       },
 407   {     5,      "5 Tiles"                       },
 408   {     6,      "6 Tiles"                       },
 409   {     7,      "7 Tiles"                       },
 410   {     8,      "8 Tiles (Maximum Scroll Delay)"},
 411
 412   {     -1,     NULL                            },
 413 };
 414
 415 static struct StringValueTextInfo snapshot_modes_list[] =
 416 {
 417   {     STR_SNAPSHOT_MODE_OFF,                  "Off"           },
 418   {     STR_SNAPSHOT_MODE_EVERY_STEP,           "Every Step"    },
 419   {     STR_SNAPSHOT_MODE_EVERY_MOVE,           "Every Move"    },
 420   {     STR_SNAPSHOT_MODE_EVERY_COLLECT,        "Every Collect" },
 421
 422   {     NULL,                                   NULL            },
 423 };
 424
 425 static struct ValueTextInfo volumes_list[] =
 426 {
 427   {     0,      "0 %"                           },
 428   {     1,      "1 %"                           },
 429   {     2,      "2 %"                           },
 430   {     5,      "5 %"                           },
 431   {     10,     "10 %"                          },
 432   {     20,     "20 %"                          },
 433   {     30,     "30 %"                          },
 434   {     40,     "40 %"                          },
 435   {     50,     "50 %"                          },
 436   {     60,     "60 %"                          },
 437   {     70,     "70 %"                          },
 438   {     80,     "80 %"                          },
 439   {     90,     "90 %"                          },
 440   {     100,    "100 %"                         },
 441
 442   {     -1,     NULL                            },
 443 };
 444
 445 static struct StringValueTextInfo touch_controls_list[] =
 446 {
 447   {     TOUCH_CONTROL_OFF,              "Off"                   },
 448   {     TOUCH_CONTROL_VIRTUAL_BUTTONS,  "Virtual Buttons"       },
 449   {     TOUCH_CONTROL_WIPE_GESTURES,    "Wipe Gestures"         },
 450   {     TOUCH_CONTROL_FOLLOW_FINGER,    "Follow Finger"         },
 451
 452   {     NULL,                           NULL                    },
 453 };
 454
 455 static struct ValueTextInfo distances_list[] =
 456 {
 457   {     1,      "1 %"                           },
 458   {     2,      "2 %"                           },
 459   {     3,      "3 %"                           },
 460   {     4,      "4 %"                           },
 461   {     5,      "5 %"                           },
 462   {     10,     "10 %"                          },
 463   {     15,     "15 %"                          },
 464   {     20,     "20 %"                          },
 465   {     25,     "25 %"                          },
 466
 467   {     -1,     NULL                            },
 468 };
 469
 470 static struct ValueTextInfo transparencies_list[] =
 471 {
 472   {     0,      "0 % (Opaque)"                  },
 473   {     10,     "10 %"                          },
 474   {     20,     "20 %"                          },
 475   {     30,     "30 %"                          },
 476   {     40,     "40 %"                          },
 477   {     50,     "50 %"                          },
 478   {     60,     "60 %"                          },
 479   {     70,     "70 %"                          },
 480   {     80,     "80 %"                          },
 481   {     90,     "90 %"                          },
 482   {     100,    "100 % (Invisible)"             },
 483
 484   {     -1,     NULL                            },
 485 };
 486
 487 static struct ValueTextInfo grid_sizes_list[] =
 488 {
 489   {     3,      "3"                             },
 490   {     4,      "4"                             },
 491   {     5,      "5"                             },
 492   {     6,      "6"                             },
 493   {     7,      "7"                             },
 494   {     8,      "8"                             },
 495   {     9,      "9"                             },
 496   {     10,     "10"                            },
 497   {     11,     "11"                            },
 498   {     12,     "12"                            },
 499   {     13,     "13"                            },
 500   {     14,     "14"                            },
 501   {     15,     "15"                            },
 502   {     16,     "16"                            },
 503   {     17,     "17"                            },
 504   {     18,     "18"                            },
 505   {     19,     "19"                            },
 506   {     20,     "20"                            },
 507   {     21,     "21"                            },
 508   {     22,     "22"                            },
 509   {     23,     "23"                            },
 510   {     24,     "24"                            },
 511   {     25,     "25"                            },
 512   {     26,     "26"                            },
 513   {     27,     "27"                            },
 514   {     28,     "28"                            },
 515   {     29,     "29"                            },
 516   {     30,     "30"                            },
 517   {     31,     "31"                            },
 518   {     32,     "32"                            },
 519
 520   {     -1,     NULL                            },
 521 };
 522
 523 #define DRAW_MODE(s)            ((s) >= GAME_MODE_MAIN &&               \
 524                                  (s) <= GAME_MODE_SETUP ? (s) :         \
 525                                  (s) == GAME_MODE_PSEUDO_TYPENAME ?     \
 526                                  GAME_MODE_MAIN : GAME_MODE_DEFAULT)
 527
 528 // (there are no draw offset definitions needed for INFO_MODE_TITLE)
 529 #define DRAW_MODE_INFO(i)       ((i) >= INFO_MODE_TITLE &&              \
 530                                  (i) <= INFO_MODE_LEVELSET ? (i) :      \
 531                                  INFO_MODE_MAIN)
 532
 533 #define DRAW_MODE_SETUP(i)      ((i) >= SETUP_MODE_MAIN &&              \
 534                                  (i) <= SETUP_MODE_SHORTCUTS_5 ? (i) :  \
 535                                  (i) >= SETUP_MODE_CHOOSE_GRAPHICS &&   \
 536                                  (i) <= SETUP_MODE_CHOOSE_MUSIC ?       \
 537                                  SETUP_MODE_CHOOSE_ARTWORK :            \
 538                                  SETUP_MODE_CHOOSE_OTHER)
 539
 540 #define DRAW_XOFFSET_INFO(i)    (DRAW_MODE_INFO(i) == INFO_MODE_MAIN ?  \
 541                                  menu.draw_xoffset[GAME_MODE_INFO] :    \
 542                                  menu.draw_xoffset_info[DRAW_MODE_INFO(i)])
 543 #define DRAW_YOFFSET_INFO(i)    (DRAW_MODE_INFO(i) == INFO_MODE_MAIN ?  \
 544                                  menu.draw_yoffset[GAME_MODE_INFO] :    \
 545                                  menu.draw_yoffset_info[DRAW_MODE_INFO(i)])
 546 #define EXTRA_SPACING_INFO(i)   (DRAW_MODE_INFO(i) == INFO_MODE_MAIN ? \
 547                                  menu.extra_spacing[GAME_MODE_INFO] :   \
 548                                  menu.extra_spacing_info[DRAW_MODE_INFO(i)])
 549
 550 #define DRAW_XOFFSET_SETUP(i)   (DRAW_MODE_SETUP(i) == SETUP_MODE_MAIN ? \
 551                                  menu.draw_xoffset[GAME_MODE_SETUP] :   \
 552                                  menu.draw_xoffset_setup[DRAW_MODE_SETUP(i)])
 553 #define DRAW_YOFFSET_SETUP(i)   (DRAW_MODE_SETUP(i) == SETUP_MODE_MAIN ? \
 554                                  menu.draw_yoffset[GAME_MODE_SETUP] :   \
 555                                  menu.draw_yoffset_setup[DRAW_MODE_SETUP(i)])
 556 #define EXTRA_SPACING_SETUP(i)  (DRAW_MODE_SETUP(i) == SETUP_MODE_MAIN ? \
 557                                  menu.extra_spacing[GAME_MODE_SETUP] :  \
 558                                  menu.extra_spacing_setup[DRAW_MODE_SETUP(i)])
 559
 560 #define DRAW_XOFFSET(s)         ((s) == GAME_MODE_INFO ?                \
 561                                  DRAW_XOFFSET_INFO(info_mode) :         \
 562                                  (s) == GAME_MODE_SETUP ?               \
 563                                  DRAW_XOFFSET_SETUP(setup_mode) :       \
 564                                  menu.draw_xoffset[DRAW_MODE(s)])
 565 #define DRAW_YOFFSET(s)         ((s) == GAME_MODE_INFO ?                \
 566                                  DRAW_YOFFSET_INFO(info_mode) :         \
 567                                  (s) == GAME_MODE_SETUP ?               \
 568                                  DRAW_YOFFSET_SETUP(setup_mode) :       \
 569                                  menu.draw_yoffset[DRAW_MODE(s)])
 570 #define EXTRA_SPACING(s)        ((s) == GAME_MODE_INFO ?                \
 571                                  EXTRA_SPACING_INFO(info_mode) :        \
 572                                  (s) == GAME_MODE_SETUP ?               \
 573                                  EXTRA_SPACING_SETUP(setup_mode) :      \
 574                                  menu.extra_spacing[DRAW_MODE(s)])
 575
 576 #define mSX                     (SX + DRAW_XOFFSET(game_status))
 577 #define mSY                     (SY + DRAW_YOFFSET(game_status))
 578
 579 #define NUM_MENU_ENTRIES_ON_SCREEN (menu.list_size[game_status] > 2 ?   \
 580                                     menu.list_size[game_status] :       \
 581                                     MAX_MENU_ENTRIES_ON_SCREEN)
 582
 583 #define IN_VIS_MENU(x, y)       IN_FIELD(x, y, SCR_FIELDX,              \
 584                                          NUM_MENU_ENTRIES_ON_SCREEN)
 585
 586
 587 // title display and control definitions
 588
 589 #define MAX_NUM_TITLE_SCREENS   (2 * MAX_NUM_TITLE_IMAGES +             \
 590                                  2 * MAX_NUM_TITLE_MESSAGES)
 591
 592 #define NO_DIRECT_LEVEL_SELECT  (-1)
 593
 594
 595 static int num_title_screens = 0;
 596
 597 struct TitleControlInfo
 598 {
 599   boolean is_image;
 600   boolean initial;
 601   boolean first;
 602   int local_nr;
 603   int sort_priority;
 604 };
 605
 606 struct TitleControlInfo title_controls[MAX_NUM_TITLE_SCREENS];
 607
 608 // main menu display and control definitions
 609
 610 #define MAIN_CONTROL_NAME                       0
 611 #define MAIN_CONTROL_LEVELS                     1
 612 #define MAIN_CONTROL_SCORES                     2
 613 #define MAIN_CONTROL_EDITOR                     3
 614 #define MAIN_CONTROL_INFO                       4
 615 #define MAIN_CONTROL_GAME                       5
 616 #define MAIN_CONTROL_SETUP                      6
 617 #define MAIN_CONTROL_QUIT                       7
 618 #define MAIN_CONTROL_PREV_LEVEL                 8
 619 #define MAIN_CONTROL_NEXT_LEVEL                 9
 620 #define MAIN_CONTROL_FIRST_LEVEL                10
 621 #define MAIN_CONTROL_LAST_LEVEL                 11
 622 #define MAIN_CONTROL_LEVEL_NUMBER               12
 623 #define MAIN_CONTROL_LEVEL_INFO_1               13
 624 #define MAIN_CONTROL_LEVEL_INFO_2               14
 625 #define MAIN_CONTROL_LEVEL_NAME                 15
 626 #define MAIN_CONTROL_LEVEL_AUTHOR               16
 627 #define MAIN_CONTROL_LEVEL_YEAR                 17
 628 #define MAIN_CONTROL_LEVEL_IMPORTED_FROM        18
 629 #define MAIN_CONTROL_LEVEL_IMPORTED_BY          19
 630 #define MAIN_CONTROL_LEVEL_TESTED_BY            20
 631 #define MAIN_CONTROL_TITLE_1                    21
 632 #define MAIN_CONTROL_TITLE_2                    22
 633 #define MAIN_CONTROL_TITLE_3                    23
 634
 635 static char str_main_text_name[10];
 636 static char str_main_text_first_level[10];
 637 static char str_main_text_last_level[10];
 638 static char str_main_text_level_number[10];
 639
 640 static char network_server_hostname[MAX_SETUP_TEXT_INPUT_LEN + 1];
 641
 642 static char *main_text_name                     = str_main_text_name;
 643 static char *main_text_first_level              = str_main_text_first_level;
 644 static char *main_text_last_level               = str_main_text_last_level;
 645 static char *main_text_level_number             = str_main_text_level_number;
 646 static char *main_text_levels                   = "Levelset";
 647 static char *main_text_scores                   = "Hall Of Fame";
 648 static char *main_text_editor                   = "Level Creator";
 649 static char *main_text_info                     = "Info Screen";
 650 static char *main_text_game                     = "Start Game";
 651 static char *main_text_setup                    = "Setup";
 652 static char *main_text_quit                     = "Quit";
 653 static char *main_text_level_name               = level.name;
 654 static char *main_text_level_author             = level.author;
 655 static char *main_text_level_year               = NULL;
 656 static char *main_text_level_imported_from      = NULL;
 657 static char *main_text_level_imported_by        = NULL;
 658 static char *main_text_level_tested_by          = NULL;
 659 static char *main_text_title_1                  = NULL;
 660 static char *main_text_title_2                  = NULL;
 661 static char *main_text_title_3                  = NULL;
 662
 663 struct MainControlInfo
 664 {
 665   int nr;
 666
 667   struct MenuPosInfo *pos_button;
 668   int button_graphic;
 669
 670   struct TextPosInfo *pos_text;
 671   char **text;
 672
 673   struct TextPosInfo *pos_input;
 674   char **input;
 675 };
 676
 677 static struct MainControlInfo main_controls[] =
 678 {
 679   {
 680     MAIN_CONTROL_NAME,
 681     &menu.main.button.name,             IMG_MENU_BUTTON_NAME,
 682     &menu.main.text.name,               &main_text_name,
 683     &menu.main.input.name,              &setup.player_name,
 684   },
 685   {
 686     MAIN_CONTROL_LEVELS,
 687     &menu.main.button.levels,           IMG_MENU_BUTTON_LEVELS,
 688     &menu.main.text.levels,             &main_text_levels,
 689     NULL,                               NULL,
 690   },
 691   {
 692     MAIN_CONTROL_SCORES,
 693     &menu.main.button.scores,           IMG_MENU_BUTTON_SCORES,
 694     &menu.main.text.scores,             &main_text_scores,
 695     NULL,                               NULL,
 696   },
 697   {
 698     MAIN_CONTROL_EDITOR,
 699     &menu.main.button.editor,           IMG_MENU_BUTTON_EDITOR,
 700     &menu.main.text.editor,             &main_text_editor,
 701     NULL,                               NULL,
 702   },
 703   {
 704     MAIN_CONTROL_INFO,
 705     &menu.main.button.info,             IMG_MENU_BUTTON_INFO,
 706     &menu.main.text.info,               &main_text_info,
 707     NULL,                               NULL,
 708   },
 709   {
 710     MAIN_CONTROL_GAME,
 711     &menu.main.button.game,             IMG_MENU_BUTTON_GAME,
 712     &menu.main.text.game,               &main_text_game,
 713     NULL,                               NULL,
 714   },
 715   {
 716     MAIN_CONTROL_SETUP,
 717     &menu.main.button.setup,            IMG_MENU_BUTTON_SETUP,
 718     &menu.main.text.setup,              &main_text_setup,
 719     NULL,                               NULL,
 720   },
 721   {
 722     MAIN_CONTROL_QUIT,
 723     &menu.main.button.quit,             IMG_MENU_BUTTON_QUIT,
 724     &menu.main.text.quit,               &main_text_quit,
 725     NULL,                               NULL,
 726   },
 727 #if 0
 728   // (these two buttons are real gadgets)
 729   {
 730     MAIN_CONTROL_PREV_LEVEL,
 731     &menu.main.button.prev_level,       IMG_MENU_BUTTON_PREV_LEVEL,
 732     NULL,                               NULL,
 733     NULL,                               NULL,
 734   },
 735   {
 736     MAIN_CONTROL_NEXT_LEVEL,
 737     &menu.main.button.next_level,       IMG_MENU_BUTTON_NEXT_LEVEL,
 738     NULL,                               NULL,
 739     NULL,                               NULL,
 740   },
 741 #endif
 742   {
 743     MAIN_CONTROL_FIRST_LEVEL,
 744     &menu.main.button.first_level,      IMG_MENU_BUTTON_FIRST_LEVEL,
 745     &menu.main.text.first_level,        &main_text_first_level,
 746     NULL,                               NULL,
 747   },
 748   {
 749     MAIN_CONTROL_LAST_LEVEL,
 750     &menu.main.button.last_level,       IMG_MENU_BUTTON_LAST_LEVEL,
 751     &menu.main.text.last_level,         &main_text_last_level,
 752     NULL,                               NULL,
 753   },
 754   {
 755     MAIN_CONTROL_LEVEL_NUMBER,
 756     &menu.main.button.level_number,     IMG_MENU_BUTTON_LEVEL_NUMBER,
 757     &menu.main.text.level_number,       &main_text_level_number,
 758     NULL,                               NULL,
 759   },
 760   {
 761     MAIN_CONTROL_LEVEL_INFO_1,
 762     NULL,                               -1,
 763     &menu.main.text.level_info_1,       NULL,
 764     NULL,                               NULL,
 765   },
 766   {
 767     MAIN_CONTROL_LEVEL_INFO_2,
 768     NULL,                               -1,
 769     &menu.main.text.level_info_2,       NULL,
 770     NULL,                               NULL,
 771   },
 772   {
 773     MAIN_CONTROL_LEVEL_NAME,
 774     NULL,                               -1,
 775     &menu.main.text.level_name,         &main_text_level_name,
 776     NULL,                               NULL,
 777   },
 778   {
 779     MAIN_CONTROL_LEVEL_AUTHOR,
 780     NULL,                               -1,
 781     &menu.main.text.level_author,       &main_text_level_author,
 782     NULL,                               NULL,
 783   },
 784   {
 785     MAIN_CONTROL_LEVEL_YEAR,
 786     NULL,                               -1,
 787     &menu.main.text.level_year,         &main_text_level_year,
 788     NULL,                               NULL,
 789   },
 790   {
 791     MAIN_CONTROL_LEVEL_IMPORTED_FROM,
 792     NULL,                               -1,
 793     &menu.main.text.level_imported_from, &main_text_level_imported_from,
 794     NULL,                               NULL,
 795   },
 796   {
 797     MAIN_CONTROL_LEVEL_IMPORTED_BY,
 798     NULL,                               -1,
 799     &menu.main.text.level_imported_by,  &main_text_level_imported_by,
 800     NULL,                               NULL,
 801   },
 802   {
 803     MAIN_CONTROL_LEVEL_TESTED_BY,
 804     NULL,                               -1,
 805     &menu.main.text.level_tested_by,    &main_text_level_tested_by,
 806     NULL,                               NULL,
 807   },
 808   {
 809     MAIN_CONTROL_TITLE_1,
 810     NULL,                               -1,
 811     &menu.main.text.title_1,            &main_text_title_1,
 812     NULL,                               NULL,
 813   },
 814   {
 815     MAIN_CONTROL_TITLE_2,
 816     NULL,                               -1,
 817     &menu.main.text.title_2,            &main_text_title_2,
 818     NULL,                               NULL,
 819   },
 820   {
 821     MAIN_CONTROL_TITLE_3,
 822     NULL,                               -1,
 823     &menu.main.text.title_3,            &main_text_title_3,
 824     NULL,                               NULL,
 825   },
 826
 827   {
 828     -1,
 829     NULL,                               -1,
 830     NULL,                               NULL,
 831     NULL,                               NULL,
 832   }
 833 };
 834
 835
 836 static int getTitleScreenGraphic(int nr, boolean initial)
 837 {
 838   return (initial ? IMG_TITLESCREEN_INITIAL_1 : IMG_TITLESCREEN_1) + nr;
 839 }
 840
 841 static struct TitleMessageInfo *getTitleMessageInfo(int nr, boolean initial)
 842 {
 843   return (initial ? &titlemessage_initial[nr] : &titlemessage[nr]);
 844 }
 845
 846 #if 0
 847 static int getTitleScreenGameMode(boolean initial)
 848 {
 849   return (initial ? GAME_MODE_TITLE_INITIAL : GAME_MODE_TITLE);
 850 }
 851 #endif
 852
 853 static int getTitleMessageGameMode(boolean initial)
 854 {
 855   return (initial ? GAME_MODE_TITLE_INITIAL : GAME_MODE_TITLE);
 856 }
 857
 858 static int getTitleAnimMode(struct TitleControlInfo *tci)
 859 {
 860   int base = (tci->initial ? GAME_MODE_TITLE_INITIAL_1 : GAME_MODE_TITLE_1);
 861
 862   return base + tci->local_nr;
 863 }
 864
 865 #if 0
 866 static int getTitleScreenBackground(boolean initial)
 867 {
 868   return (initial ? IMG_BACKGROUND_TITLE_INITIAL : IMG_BACKGROUND_TITLE);
 869 }
 870 #endif
 871
 872 #if 0
 873 static int getTitleMessageBackground(int nr, boolean initial)
 874 {
 875   return (initial ? IMG_BACKGROUND_TITLE_INITIAL : IMG_BACKGROUND_TITLE);
 876 }
 877 #endif
 878
 879 static int getTitleBackground(int nr, boolean initial, boolean is_image)
 880 {
 881   int base = (is_image ?
 882               (initial ? IMG_BACKGROUND_TITLESCREEN_INITIAL_1 :
 883                          IMG_BACKGROUND_TITLESCREEN_1) :
 884               (initial ? IMG_BACKGROUND_TITLEMESSAGE_INITIAL_1 :
 885                          IMG_BACKGROUND_TITLEMESSAGE_1));
 886   int graphic_global = (initial ? IMG_BACKGROUND_TITLE_INITIAL :
 887                                   IMG_BACKGROUND_TITLE);
 888   int graphic_local = base + nr;
 889
 890   if (graphic_info[graphic_local].bitmap != NULL)
 891     return graphic_local;
 892
 893   if (graphic_info[graphic_global].bitmap != NULL)
 894     return graphic_global;
 895
 896   return IMG_UNDEFINED;
 897 }
 898
 899 static int getTitleSound(struct TitleControlInfo *tci)
 900 {
 901   boolean is_image = tci->is_image;
 902   int initial = tci->initial;
 903   int nr = tci->local_nr;
 904   int mode = (initial ? GAME_MODE_TITLE_INITIAL : GAME_MODE_TITLE);
 905   int base = (is_image ?
 906               (initial ? SND_BACKGROUND_TITLESCREEN_INITIAL_1 :
 907                          SND_BACKGROUND_TITLESCREEN_1) :
 908               (initial ? SND_BACKGROUND_TITLEMESSAGE_INITIAL_1 :
 909                          SND_BACKGROUND_TITLEMESSAGE_1));
 910   int sound_global = menu.sound[mode];
 911   int sound_local = base + nr;
 912
 913 #if 0
 914   printf("::: %d, %d, %d: %d ['%s'], %d ['%s']\n",
 915          nr, initial, is_image,
 916          sound_global, getSoundListEntry(sound_global)->filename,
 917          sound_local, getSoundListEntry(sound_local)->filename);
 918 #endif
 919
 920   if (!strEqual(getSoundListEntry(sound_local)->filename, UNDEFINED_FILENAME))
 921     return sound_local;
 922
 923   if (!strEqual(getSoundListEntry(sound_global)->filename, UNDEFINED_FILENAME))
 924     return sound_global;
 925
 926   return SND_UNDEFINED;
 927 }
 928
 929 static int getTitleMusic(struct TitleControlInfo *tci)
 930 {
 931   boolean is_image = tci->is_image;
 932   int initial = tci->initial;
 933   int nr = tci->local_nr;
 934   int mode = (initial ? GAME_MODE_TITLE_INITIAL : GAME_MODE_TITLE);
 935   int base = (is_image ?
 936               (initial ? MUS_BACKGROUND_TITLESCREEN_INITIAL_1 :
 937                          MUS_BACKGROUND_TITLESCREEN_1) :
 938               (initial ? MUS_BACKGROUND_TITLEMESSAGE_INITIAL_1 :
 939                          MUS_BACKGROUND_TITLEMESSAGE_1));
 940   int music_global = menu.music[mode];
 941   int music_local = base + nr;
 942
 943 #if 0
 944   printf("::: %d, %d, %d: %d ['%s'], %d ['%s']\n",
 945          nr, initial, is_image,
 946          music_global, getMusicListEntry(music_global)->filename,
 947          music_local, getMusicListEntry(music_local)->filename);
 948 #endif
 949
 950   if (!strEqual(getMusicListEntry(music_local)->filename, UNDEFINED_FILENAME))
 951     return music_local;
 952
 953   if (!strEqual(getMusicListEntry(music_global)->filename, UNDEFINED_FILENAME))
 954     return music_global;
 955
 956   return MUS_UNDEFINED;
 957 }
 958
 959 static struct TitleFadingInfo getTitleFading(struct TitleControlInfo *tci)
 960 {
 961   boolean is_image = tci->is_image;
 962   boolean initial = tci->initial;
 963   boolean first = tci->first;
 964   int nr = tci->local_nr;
 965   struct TitleMessageInfo tmi;
 966   struct TitleFadingInfo ti;
 967
 968   tmi = (is_image ? (initial ? (first ?
 969                                 titlescreen_initial_first[nr] :
 970                                 titlescreen_initial[nr])
 971                              : (first ?
 972                                 titlescreen_first[nr] :
 973                                 titlescreen[nr]))
 974                   : (initial ? (first ?
 975                                 titlemessage_initial_first[nr] :
 976                                 titlemessage_initial[nr])
 977                              : (first ?
 978                                 titlemessage_first[nr] :
 979                                 titlemessage[nr])));
 980
 981   ti.fade_mode  = tmi.fade_mode;
 982   ti.fade_delay = tmi.fade_delay;
 983   ti.post_delay = tmi.post_delay;
 984   ti.auto_delay = tmi.auto_delay;
 985
 986   return ti;
 987 }
 988
 989 static int compareTitleControlInfo(const void *object1, const void *object2)
 990 {
 991   const struct TitleControlInfo *tci1 = (struct TitleControlInfo *)object1;
 992   const struct TitleControlInfo *tci2 = (struct TitleControlInfo *)object2;
 993   int compare_result;
 994
 995   if (tci1->initial != tci2->initial)
 996     compare_result = (tci1->initial ? -1 : +1);
 997   else if (tci1->sort_priority != tci2->sort_priority)
 998     compare_result = tci1->sort_priority - tci2->sort_priority;
 999   else if (tci1->is_image != tci2->is_image)
1000     compare_result = (tci1->is_image ? -1 : +1);
1001   else
1002     compare_result = tci1->local_nr - tci2->local_nr;
1003
1004   return compare_result;
1005 }
1006
1007 static void InitializeTitleControlsExt_AddTitleInfo(boolean is_image,
1008                                                     boolean initial,
1009                                                     int nr, int sort_priority)
1010 {
1011   title_controls[num_title_screens].is_image = is_image;
1012   title_controls[num_title_screens].initial = initial;
1013   title_controls[num_title_screens].local_nr = nr;
1014   title_controls[num_title_screens].sort_priority = sort_priority;
1015
1016   title_controls[num_title_screens].first = FALSE;      // will be set later
1017
1018   num_title_screens++;
1019 }
1020
1021 static void InitializeTitleControls_CheckTitleInfo(boolean initial)
1022 {
1023   int i;
1024
1025   for (i = 0; i < MAX_NUM_TITLE_IMAGES; i++)
1026   {
1027     int graphic = getTitleScreenGraphic(i, initial);
1028     Bitmap *bitmap = graphic_info[graphic].bitmap;
1029     int sort_priority = graphic_info[graphic].sort_priority;
1030
1031     if (bitmap != NULL)
1032       InitializeTitleControlsExt_AddTitleInfo(TRUE, initial, i, sort_priority);
1033   }
1034
1035   for (i = 0; i < MAX_NUM_TITLE_MESSAGES; i++)
1036   {
1037     struct TitleMessageInfo *tmi = getTitleMessageInfo(i, initial);
1038     char *filename = getLevelSetTitleMessageFilename(i, initial);
1039     int sort_priority = tmi->sort_priority;
1040
1041     if (filename != NULL)
1042       InitializeTitleControlsExt_AddTitleInfo(FALSE, initial, i, sort_priority);
1043   }
1044 }
1045
1046 static void InitializeTitleControls(boolean show_title_initial)
1047 {
1048   num_title_screens = 0;
1049
1050   // 1st step: initialize title screens for game start (only when starting)
1051   if (show_title_initial)
1052     InitializeTitleControls_CheckTitleInfo(TRUE);
1053
1054   // 2nd step: initialize title screens for current level set
1055   InitializeTitleControls_CheckTitleInfo(FALSE);
1056
1057   // sort title screens according to sort_priority and title number
1058   qsort(title_controls, num_title_screens, sizeof(struct TitleControlInfo),
1059         compareTitleControlInfo);
1060
1061   // mark first title screen
1062   title_controls[0].first = TRUE;
1063 }
1064
1065 static boolean visibleMenuPos(struct MenuPosInfo *pos)
1066 {
1067   return (pos != NULL && pos->x != -1 && pos->y != -1);
1068 }
1069
1070 static boolean visibleTextPos(struct TextPosInfo *pos)
1071 {
1072   return (pos != NULL && pos->x != -1 && pos->y != -1);
1073 }
1074
1075 static void InitializeMainControls(void)
1076 {
1077   boolean local_team_mode = (!network.enabled && setup.team_mode);
1078   int i;
1079
1080   // set main control text values to dynamically determined values
1081   sprintf(main_text_name,         "%s",   local_team_mode ? "Team:" : "Name:");
1082
1083   strcpy(main_text_first_level,  int2str(leveldir_current->first_level,
1084                                          menu.main.text.first_level.size));
1085   strcpy(main_text_last_level,   int2str(leveldir_current->last_level,
1086                                          menu.main.text.last_level.size));
1087   strcpy(main_text_level_number, int2str(level_nr,
1088                                          menu.main.text.level_number.size));
1089
1090   main_text_level_year          = leveldir_current->year;
1091   main_text_level_imported_from = leveldir_current->imported_from;
1092   main_text_level_imported_by   = leveldir_current->imported_by;
1093   main_text_level_tested_by     = leveldir_current->tested_by;
1094
1095   main_text_title_1 = getConfigProgramTitleString();
1096   main_text_title_2 = getConfigProgramCopyrightString();
1097   main_text_title_3 = getConfigProgramCompanyString();
1098
1099   // set main control screen positions to dynamically determined values
1100   for (i = 0; main_controls[i].nr != -1; i++)
1101   {
1102     struct MainControlInfo *mci = &main_controls[i];
1103     int nr                         = mci->nr;
1104     struct MenuPosInfo *pos_button = mci->pos_button;
1105     struct TextPosInfo *pos_text   = mci->pos_text;
1106     struct TextPosInfo *pos_input  = mci->pos_input;
1107     char *text                     = (mci->text  ? *mci->text  : NULL);
1108     char *input                    = (mci->input ? *mci->input : NULL);
1109     int button_graphic             = mci->button_graphic;
1110     int font_text                  = (pos_text  ? pos_text->font  : -1);
1111     int font_input                 = (pos_input ? pos_input->font : -1);
1112
1113     int font_text_width   = (font_text  != -1 ? getFontWidth(font_text)   : 0);
1114     int font_text_height  = (font_text  != -1 ? getFontHeight(font_text)  : 0);
1115     int font_input_width  = (font_input != -1 ? getFontWidth(font_input)  : 0);
1116     int font_input_height = (font_input != -1 ? getFontHeight(font_input) : 0);
1117     int text_chars  = (text  != NULL ? strlen(text)  : 0);
1118     int input_chars = (input != NULL ? strlen(input) : 0);
1119
1120     int button_width =
1121       (button_graphic != -1 ? graphic_info[button_graphic].width  : 0);
1122     int button_height =
1123       (button_graphic != -1 ? graphic_info[button_graphic].height : 0);
1124     int text_width   = font_text_width * text_chars;
1125     int text_height  = font_text_height;
1126     int input_width  = font_input_width * input_chars;
1127     int input_height = font_input_height;
1128
1129     if (nr == MAIN_CONTROL_NAME)
1130     {
1131       menu.main.input.name.width  = input_width;
1132       menu.main.input.name.height = input_height;
1133     }
1134
1135     if (pos_button != NULL)             // (x/y may be -1/-1 here)
1136     {
1137       pos_button->width  = button_width;
1138       pos_button->height = button_height;
1139     }
1140
1141     if (pos_text != NULL)               // (x/y may be -1/-1 here)
1142     {
1143       // calculate text size -- needed for text alignment
1144       boolean calculate_text_size = (text != NULL);
1145
1146       if (pos_text->width == -1 || calculate_text_size)
1147         pos_text->width = text_width;
1148       if (pos_text->height == -1 || calculate_text_size)
1149         pos_text->height = text_height;
1150
1151       if (visibleMenuPos(pos_button))
1152       {
1153         if (pos_text->x == -1)
1154           pos_text->x = pos_button->x + pos_button->width;
1155         if (pos_text->y == -1)
1156           pos_text->y =
1157             pos_button->y + (pos_button->height - pos_text->height) / 2;
1158       }
1159     }
1160
1161     if (pos_input != NULL)              // (x/y may be -1/-1 here)
1162     {
1163       if (visibleTextPos(pos_text))
1164       {
1165         if (pos_input->x == -1)
1166           pos_input->x = pos_text->x + pos_text->width;
1167         if (pos_input->y == -1)
1168           pos_input->y = pos_text->y;
1169       }
1170
1171       if (pos_input->width == -1)
1172         pos_input->width = input_width;
1173       if (pos_input->height == -1)
1174         pos_input->height = input_height;
1175     }
1176   }
1177 }
1178
1179 static void DrawPressedGraphicThruMask(int dst_x, int dst_y,
1180                                        int graphic, boolean pressed)
1181 {
1182   struct GraphicInfo *g = &graphic_info[graphic];
1183   Bitmap *src_bitmap;
1184   int src_x, src_y;
1185   int xoffset = (pressed ? g->pressed_xoffset : 0);
1186   int yoffset = (pressed ? g->pressed_yoffset : 0);
1187
1188   getFixedGraphicSource(graphic, 0, &src_bitmap, &src_x, &src_y);
1189
1190   BlitBitmapMasked(src_bitmap, drawto, src_x + xoffset, src_y + yoffset,
1191                    g->width, g->height, dst_x, dst_y);
1192 }
1193
1194 static void DrawCursorAndText_Main_Ext(int nr, boolean active_text,
1195                                        boolean active_input,
1196                                        boolean pressed_button)
1197 {
1198   int i;
1199
1200   for (i = 0; main_controls[i].nr != -1; i++)
1201   {
1202     struct MainControlInfo *mci = &main_controls[i];
1203
1204     if (mci->nr == nr || nr == -1)
1205     {
1206       struct MenuPosInfo *pos_button = mci->pos_button;
1207       struct TextPosInfo *pos_text   = mci->pos_text;
1208       struct TextPosInfo *pos_input  = mci->pos_input;
1209       char *text                     = (mci->text  ? *mci->text  : NULL);
1210       char *input                    = (mci->input ? *mci->input : NULL);
1211       int button_graphic             = mci->button_graphic;
1212       int font_text                  = (pos_text  ? pos_text->font  : -1);
1213       int font_input                 = (pos_input ? pos_input->font : -1);
1214
1215       if (active_text)
1216       {
1217         button_graphic = BUTTON_ACTIVE(button_graphic);
1218         font_text = FONT_ACTIVE(font_text);
1219       }
1220
1221       if (active_input)
1222       {
1223         font_input = FONT_ACTIVE(font_input);
1224       }
1225
1226       if (visibleMenuPos(pos_button))
1227       {
1228         struct MenuPosInfo *pos = pos_button;
1229         int x = mSX + pos->x;
1230         int y = mSY + pos->y;
1231
1232         DrawBackgroundForGraphic(x, y, pos->width, pos->height, button_graphic);
1233         DrawPressedGraphicThruMask(x, y, button_graphic, pressed_button);
1234       }
1235
1236       if (visibleTextPos(pos_text) && text != NULL)
1237       {
1238         struct TextPosInfo *pos = pos_text;
1239         int x = mSX + ALIGNED_TEXT_XPOS(pos);
1240         int y = mSY + ALIGNED_TEXT_YPOS(pos);
1241
1242 #if 1
1243         // (check why/if this is needed)
1244         DrawBackgroundForFont(x, y, pos->width, pos->height, font_text);
1245 #endif
1246         DrawText(x, y, text, font_text);
1247       }
1248
1249       if (visibleTextPos(pos_input) && input != NULL)
1250       {
1251         struct TextPosInfo *pos = pos_input;
1252         int x = mSX + ALIGNED_TEXT_XPOS(pos);
1253         int y = mSY + ALIGNED_TEXT_YPOS(pos);
1254
1255 #if 1
1256         // (check why/if this is needed)
1257         DrawBackgroundForFont(x, y, pos->width, pos->height, font_input);
1258 #endif
1259         DrawText(x, y, input, font_input);
1260       }
1261     }
1262   }
1263 }
1264
1265 static void DrawCursorAndText_Main(int nr, boolean active_text,
1266                                    boolean pressed_button)
1267 {
1268   DrawCursorAndText_Main_Ext(nr, active_text, FALSE, pressed_button);
1269 }
1270
1271 #if 0
1272 static void DrawCursorAndText_Main_Input(int nr, boolean active_text,
1273                                          boolean pressed_button)
1274 {
1275   DrawCursorAndText_Main_Ext(nr, active_text, TRUE, pressed_button);
1276 }
1277 #endif
1278
1279 static struct MainControlInfo *getMainControlInfo(int nr)
1280 {
1281   int i;
1282
1283   for (i = 0; main_controls[i].nr != -1; i++)
1284     if (main_controls[i].nr == nr)
1285       return &main_controls[i];
1286
1287   return NULL;
1288 }
1289
1290 static boolean insideMenuPosRect(struct MenuPosInfo *rect, int x, int y)
1291 {
1292   if (rect == NULL)
1293     return FALSE;
1294
1295   int rect_x = ALIGNED_TEXT_XPOS(rect);
1296   int rect_y = ALIGNED_TEXT_YPOS(rect);
1297
1298   return (x >= rect_x && x < rect_x + rect->width &&
1299           y >= rect_y && y < rect_y + rect->height);
1300 }
1301
1302 static boolean insideTextPosRect(struct TextPosInfo *rect, int x, int y)
1303 {
1304   if (rect == NULL)
1305     return FALSE;
1306
1307   int rect_x = ALIGNED_TEXT_XPOS(rect);
1308   int rect_y = ALIGNED_TEXT_YPOS(rect);
1309
1310 #if 0
1311   printf("::: insideTextPosRect: (%d, %d), (%d, %d) [%d, %d] (%d, %d) => %d\n",
1312          x, y, rect_x, rect_y, rect->x, rect->y, rect->width, rect->height,
1313          (x >= rect_x && x < rect_x + rect->width &&
1314           y >= rect_y && y < rect_y + rect->height));
1315 #endif
1316
1317   return (x >= rect_x && x < rect_x + rect->width &&
1318           y >= rect_y && y < rect_y + rect->height);
1319 }
1320
1321 static boolean insidePreviewRect(struct PreviewInfo *preview, int x, int y)
1322 {
1323   int rect_width  = preview->xsize * preview->tile_size;
1324   int rect_height = preview->ysize * preview->tile_size;
1325   int rect_x = ALIGNED_XPOS(preview->x, rect_width,  preview->align);
1326   int rect_y = ALIGNED_YPOS(preview->y, rect_height, preview->valign);
1327
1328   return (x >= rect_x && x < rect_x + rect_width &&
1329           y >= rect_y && y < rect_y + rect_height);
1330 }
1331
1332 static void AdjustScrollbar(int id, int items_max, int items_visible,
1333                             int item_position)
1334 {
1335   struct GadgetInfo *gi = screen_gadget[id];
1336
1337   if (item_position > items_max - items_visible)
1338     item_position = items_max - items_visible;
1339
1340   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
1341                GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
1342                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
1343 }
1344
1345 static void AdjustChooseTreeScrollbar(int id, int first_entry, TreeInfo *ti)
1346 {
1347   AdjustScrollbar(id, numTreeInfoInGroup(ti), NUM_MENU_ENTRIES_ON_SCREEN,
1348                   first_entry);
1349 }
1350
1351 static void clearMenuListArea(void)
1352 {
1353   int scrollbar_xpos = mSX + SC_SCROLLBAR_XPOS + menu.scrollbar_xoffset;
1354
1355   // correct scrollbar position if placed outside menu (playfield) area
1356   if (scrollbar_xpos > SX + SC_SCROLLBAR_XPOS)
1357     scrollbar_xpos = SX + SC_SCROLLBAR_XPOS;
1358
1359   // clear menu list area, but not title or scrollbar
1360   DrawBackground(mSX, mSY + MENU_SCREEN_START_YPOS * 32,
1361                  scrollbar_xpos - mSX, NUM_MENU_ENTRIES_ON_SCREEN * 32);
1362 }
1363
1364 static void drawCursorExt(int xpos, int ypos, boolean active, int graphic)
1365 {
1366   static int cursor_array[MAX_LEV_FIELDY];
1367   int x = mSX + TILEX * xpos;
1368   int y = mSY + TILEY * (MENU_SCREEN_START_YPOS + ypos);
1369
1370   if (xpos == 0)
1371   {
1372     if (graphic != -1)
1373       cursor_array[ypos] = graphic;
1374     else
1375       graphic = cursor_array[ypos];
1376   }
1377
1378   if (active)
1379     graphic = BUTTON_ACTIVE(graphic);
1380
1381   DrawBackgroundForGraphic(x, y, TILEX, TILEY, graphic);
1382   DrawFixedGraphicThruMaskExt(drawto, x, y, graphic, 0);
1383 }
1384
1385 static void initCursor(int ypos, int graphic)
1386 {
1387   drawCursorExt(0, ypos, FALSE, graphic);
1388 }
1389
1390 static void drawCursor(int ypos, boolean active)
1391 {
1392   drawCursorExt(0, ypos, active, -1);
1393 }
1394
1395 static void drawCursorXY(int xpos, int ypos, int graphic)
1396 {
1397   drawCursorExt(xpos, ypos, FALSE, graphic);
1398 }
1399
1400 static void drawChooseTreeCursor(int ypos, boolean active)
1401 {
1402   drawCursorExt(0, ypos, active, -1);
1403 }
1404
1405 static void DrawHeadline(void)
1406 {
1407   DrawTextSCentered(MENU_TITLE1_YPOS, FONT_TITLE_1, main_text_title_1);
1408   DrawTextSCentered(MENU_TITLE2_YPOS, FONT_TITLE_2, main_text_title_2);
1409 }
1410
1411 static void DrawTitleScreenImage(int nr, boolean initial)
1412 {
1413   int graphic = getTitleScreenGraphic(nr, initial);
1414   Bitmap *bitmap = graphic_info[graphic].bitmap;
1415   int width  = graphic_info[graphic].width;
1416   int height = graphic_info[graphic].height;
1417   int src_x = graphic_info[graphic].src_x;
1418   int src_y = graphic_info[graphic].src_y;
1419   int dst_x, dst_y;
1420
1421   if (bitmap == NULL)
1422     return;
1423
1424   if (width > WIN_XSIZE)
1425   {
1426     // image width too large for window => center image horizontally
1427     src_x = (width - WIN_XSIZE) / 2;
1428     width = WIN_XSIZE;
1429   }
1430
1431   if (height > WIN_YSIZE)
1432   {
1433     // image height too large for window => center image vertically
1434     src_y = (height - WIN_YSIZE) / 2;
1435     height = WIN_YSIZE;
1436   }
1437
1438   // always display title screens centered
1439   dst_x = (WIN_XSIZE - width) / 2;
1440   dst_y = (WIN_YSIZE - height) / 2;
1441
1442   SetDrawBackgroundMask(REDRAW_ALL);
1443   SetWindowBackgroundImage(getTitleBackground(nr, initial, TRUE));
1444
1445   ClearRectangleOnBackground(drawto, 0, 0, WIN_XSIZE, WIN_YSIZE);
1446
1447   if (DrawingOnBackground(dst_x, dst_y))
1448     BlitBitmapMasked(bitmap, drawto, src_x, src_y, width, height, dst_x, dst_y);
1449   else
1450     BlitBitmap(bitmap, drawto, src_x, src_y, width, height, dst_x, dst_y);
1451
1452   redraw_mask = REDRAW_ALL;
1453 }
1454
1455 static void DrawTitleScreenMessage(int nr, boolean initial)
1456 {
1457   char *filename = getLevelSetTitleMessageFilename(nr, initial);
1458   struct TitleMessageInfo *tmi = getTitleMessageInfo(nr, initial);
1459
1460   if (filename == NULL)
1461     return;
1462
1463   // force TITLE font on title message screen
1464   SetFontStatus(getTitleMessageGameMode(initial));
1465
1466   // if chars *and* width set to "-1", automatically determine width
1467   if (tmi->chars == -1 && tmi->width == -1)
1468     tmi->width = viewport.window[game_status].width;
1469
1470   // if lines *and* height set to "-1", automatically determine height
1471   if (tmi->lines == -1 && tmi->height == -1)
1472     tmi->height = viewport.window[game_status].height;
1473
1474   // if chars set to "-1", automatically determine by text and font width
1475   if (tmi->chars == -1)
1476     tmi->chars = tmi->width / getFontWidth(tmi->font);
1477   else
1478     tmi->width = tmi->chars * getFontWidth(tmi->font);
1479
1480   // if lines set to "-1", automatically determine by text and font height
1481   if (tmi->lines == -1)
1482     tmi->lines = tmi->height / getFontHeight(tmi->font);
1483   else
1484     tmi->height = tmi->lines * getFontHeight(tmi->font);
1485
1486   // if x set to "-1", automatically determine by width and alignment
1487   if (tmi->x == -1)
1488     tmi->x = -1 * ALIGNED_XPOS(0, tmi->width, tmi->align);
1489
1490   // if y set to "-1", automatically determine by height and alignment
1491   if (tmi->y == -1)
1492     tmi->y = -1 * ALIGNED_YPOS(0, tmi->height, tmi->valign);
1493
1494   SetDrawBackgroundMask(REDRAW_ALL);
1495   SetWindowBackgroundImage(getTitleBackground(nr, initial, FALSE));
1496
1497   ClearRectangleOnBackground(drawto, 0, 0, WIN_XSIZE, WIN_YSIZE);
1498
1499   DrawTextFile(ALIGNED_TEXT_XPOS(tmi), ALIGNED_TEXT_YPOS(tmi),
1500                filename, tmi->font, tmi->chars, -1, tmi->lines, 0, -1,
1501                tmi->autowrap, tmi->centered, tmi->parse_comments);
1502
1503   ResetFontStatus();
1504 }
1505
1506 static void DrawTitleScreen(void)
1507 {
1508   KeyboardAutoRepeatOff();
1509
1510   HandleTitleScreen(0, 0, 0, 0, MB_MENU_INITIALIZE);
1511 }
1512
1513 static boolean CheckTitleScreen(boolean levelset_has_changed)
1514 {
1515   static boolean show_title_initial = TRUE;
1516   boolean show_titlescreen = FALSE;
1517
1518   // needed to be able to skip title screen, if no image or message defined
1519   InitializeTitleControls(show_title_initial);
1520
1521   if (setup.show_titlescreen && (show_title_initial || levelset_has_changed))
1522     show_titlescreen = TRUE;
1523
1524   // show initial title images and messages only once at program start
1525   show_title_initial = FALSE;
1526
1527   return (show_titlescreen && num_title_screens > 0);
1528 }
1529
1530 void DrawMainMenu(void)
1531 {
1532   static LevelDirTree *leveldir_last_valid = NULL;
1533   boolean levelset_has_changed = FALSE;
1534   int fade_mask = REDRAW_FIELD;
1535
1536   LimitScreenUpdates(FALSE);
1537
1538   FadeSetLeaveScreen();
1539
1540   // do not fade out here -- function may continue and fade on editor screen
1541
1542   UnmapAllGadgets();
1543   FadeMenuSoundsAndMusic();
1544
1545   ExpireSoundLoops(FALSE);
1546
1547   KeyboardAutoRepeatOn();
1548
1549   audio.sound_deactivated = FALSE;
1550
1551   GetPlayerConfig();
1552
1553   // needed if last screen was the playing screen, invoked from level editor
1554   if (level_editor_test_game)
1555   {
1556     CloseDoor(DOOR_CLOSE_ALL);
1557
1558     SetGameStatus(GAME_MODE_EDITOR);
1559
1560     DrawLevelEd();
1561
1562     return;
1563   }
1564
1565   // needed if last screen was the setup screen and fullscreen state changed
1566   // (moved to "execSetupGraphics()" to change fullscreen state directly)
1567   // ToggleFullscreenOrChangeWindowScalingIfNeeded();
1568
1569   // leveldir_current may be invalid (level group, parent link)
1570   if (!validLevelSeries(leveldir_current))
1571     leveldir_current = getFirstValidTreeInfoEntry(leveldir_last_valid);
1572
1573   if (leveldir_current != leveldir_last_valid)
1574     levelset_has_changed = TRUE;
1575
1576   // store valid level series information
1577   leveldir_last_valid = leveldir_current;
1578
1579   init_last = init;                     // switch to new busy animation
1580
1581   // needed if last screen (level choice) changed graphics, sounds or music
1582   ReloadCustomArtwork(0);
1583
1584   if (CheckTitleScreen(levelset_has_changed))
1585   {
1586     SetGameStatus(GAME_MODE_TITLE);
1587
1588     DrawTitleScreen();
1589
1590     return;
1591   }
1592
1593   if (redraw_mask & REDRAW_ALL)
1594     fade_mask = REDRAW_ALL;
1595
1596   if (CheckIfGlobalBorderOrPlayfieldViewportHasChanged())
1597     fade_mask = REDRAW_ALL;
1598
1599   FadeOut(fade_mask);
1600
1601   // needed if different viewport properties defined for menues
1602   ChangeViewportPropertiesIfNeeded();
1603
1604   SetDrawtoField(DRAW_TO_BACKBUFFER);
1605
1606   // level_nr may have been set to value over handicap with level editor
1607   if (setup.handicap && level_nr > leveldir_current->handicap_level)
1608     level_nr = leveldir_current->handicap_level;
1609
1610   LoadLevel(level_nr);
1611   LoadScore(level_nr);
1612
1613   SaveLevelSetup_SeriesInfo();
1614
1615   // set this after "ChangeViewportPropertiesIfNeeded()" (which may reset it)
1616   SetDrawDeactivationMask(REDRAW_NONE);
1617   SetDrawBackgroundMask(REDRAW_FIELD);
1618
1619   SetMainBackgroundImage(IMG_BACKGROUND_MAIN);
1620
1621 #if 0
1622   if (fade_mask == REDRAW_ALL)
1623     RedrawGlobalBorder();
1624 #endif
1625
1626   ClearField();
1627
1628   InitializeMainControls();
1629
1630   DrawCursorAndText_Main(-1, FALSE, FALSE);
1631   DrawPreviewLevelInitial();
1632   DrawNetworkPlayers();
1633
1634   HandleMainMenu(0, 0, 0, 0, MB_MENU_INITIALIZE);
1635
1636   TapeStop();
1637   if (TAPE_IS_EMPTY(tape))
1638     LoadTape(level_nr);
1639   DrawCompleteVideoDisplay();
1640
1641   PlayMenuSoundsAndMusic();
1642
1643   // create gadgets for main menu screen
1644   FreeScreenGadgets();
1645   CreateScreenGadgets();
1646
1647   // may be required if audio buttons shown on tape and changed in setup menu
1648   FreeGameButtons();
1649   CreateGameButtons();
1650
1651   // map gadgets for main menu screen
1652   MapTapeButtons();
1653   MapScreenMenuGadgets(SCREEN_MASK_MAIN);
1654   UpdateScreenMenuGadgets(SCREEN_MASK_MAIN_HAS_SOLUTION, hasSolutionTape());
1655
1656   // copy actual game door content to door double buffer for OpenDoor()
1657   BlitBitmap(drawto, bitmap_db_door_1, DX, DY, DXSIZE, DYSIZE, 0, 0);
1658   BlitBitmap(drawto, bitmap_db_door_2, VX, VY, VXSIZE, VYSIZE, 0, 0);
1659
1660   OpenDoor(GetDoorState() | DOOR_NO_DELAY | DOOR_FORCE_REDRAW);
1661
1662   DrawMaskedBorder(fade_mask);
1663
1664   FadeIn(fade_mask);
1665   FadeSetEnterMenu();
1666
1667   // update screen area with special editor door
1668   redraw_mask |= REDRAW_ALL;
1669   BackToFront();
1670
1671   SetMouseCursor(CURSOR_DEFAULT);
1672
1673   OpenDoor(DOOR_CLOSE_1 | DOOR_OPEN_2);
1674 }
1675
1676 static void gotoTopLevelDir(void)
1677 {
1678   // move upwards until inside (but not above) top level directory
1679   while (leveldir_current->node_parent &&
1680          !strEqual(leveldir_current->node_parent->subdir, STRING_TOP_DIRECTORY))
1681   {
1682     // write a "path" into level tree for easy navigation to last level
1683     if (leveldir_current->node_parent->node_group->cl_first == -1)
1684     {
1685       int num_leveldirs = numTreeInfoInGroup(leveldir_current);
1686       int leveldir_pos = posTreeInfo(leveldir_current);
1687       int num_page_entries;
1688       int cl_first, cl_cursor;
1689
1690       if (num_leveldirs <= NUM_MENU_ENTRIES_ON_SCREEN)
1691         num_page_entries = num_leveldirs;
1692       else
1693         num_page_entries = NUM_MENU_ENTRIES_ON_SCREEN;
1694
1695       cl_first = MAX(0, leveldir_pos - num_page_entries + 1);
1696       cl_cursor = leveldir_pos - cl_first;
1697
1698       leveldir_current->node_parent->node_group->cl_first = cl_first;
1699       leveldir_current->node_parent->node_group->cl_cursor = cl_cursor;
1700     }
1701
1702     leveldir_current = leveldir_current->node_parent;
1703   }
1704 }
1705
1706 void HandleTitleScreen(int mx, int my, int dx, int dy, int button)
1707 {
1708   static unsigned int title_delay = 0;
1709   static int title_screen_nr = 0;
1710   static int last_sound = -1, last_music = -1;
1711   boolean return_to_main_menu = FALSE;
1712   struct TitleControlInfo *tci;
1713   int sound, music;
1714
1715   if (button == MB_MENU_INITIALIZE)
1716   {
1717     title_delay = 0;
1718     title_screen_nr = 0;
1719     tci = &title_controls[title_screen_nr];
1720
1721     SetAnimStatus(getTitleAnimMode(tci));
1722
1723     last_sound = SND_UNDEFINED;
1724     last_music = MUS_UNDEFINED;
1725
1726     if (num_title_screens != 0)
1727     {
1728       FadeSetEnterScreen();
1729
1730       // use individual title fading instead of global "enter screen" fading
1731       fading = getTitleFading(tci);
1732     }
1733
1734     if (game_status_last_screen == GAME_MODE_INFO)
1735     {
1736       if (num_title_screens == 0)
1737       {
1738         // switch game mode from title screen mode back to info screen mode
1739         SetGameStatus(GAME_MODE_INFO);
1740
1741         // store that last screen was info screen, not main menu screen
1742         game_status_last_screen = GAME_MODE_INFO;
1743
1744         DrawInfoScreen_NotAvailable("Title screen information:",
1745                                     "No title screen for this level set.");
1746         return;
1747       }
1748
1749       FadeMenuSoundsAndMusic();
1750     }
1751
1752     FadeOut(REDRAW_ALL);
1753
1754     // title screens may have different window size
1755     ChangeViewportPropertiesIfNeeded();
1756
1757     // only required to update logic for redrawing global border
1758     ClearField();
1759
1760     if (tci->is_image)
1761       DrawTitleScreenImage(tci->local_nr, tci->initial);
1762     else
1763       DrawTitleScreenMessage(tci->local_nr, tci->initial);
1764
1765     sound = getTitleSound(tci);
1766     music = getTitleMusic(tci);
1767
1768     if (sound != last_sound)
1769       PlayMenuSoundExt(sound);
1770     if (music != last_music)
1771       PlayMenuMusicExt(music);
1772
1773     last_sound = sound;
1774     last_music = music;
1775
1776     SetMouseCursor(CURSOR_NONE);
1777
1778     FadeIn(REDRAW_ALL);
1779
1780     DelayReached(&title_delay, 0);      // reset delay counter
1781
1782     return;
1783   }
1784
1785   if (fading.auto_delay > 0 && DelayReached(&title_delay, fading.auto_delay))
1786     button = MB_MENU_CHOICE;
1787
1788   if (button == MB_MENU_LEAVE)
1789   {
1790     return_to_main_menu = TRUE;
1791   }
1792   else if (button == MB_MENU_CHOICE)
1793   {
1794     if (game_status_last_screen == GAME_MODE_INFO && num_title_screens == 0)
1795     {
1796       SetGameStatus(GAME_MODE_INFO);
1797
1798       info_mode = INFO_MODE_MAIN;
1799
1800       DrawInfoScreen();
1801
1802       return;
1803     }
1804
1805     title_screen_nr++;
1806
1807     if (title_screen_nr < num_title_screens)
1808     {
1809       tci = &title_controls[title_screen_nr];
1810
1811       SetAnimStatus(getTitleAnimMode(tci));
1812
1813       sound = getTitleSound(tci);
1814       music = getTitleMusic(tci);
1815
1816       if (last_sound != SND_UNDEFINED && sound != last_sound)
1817         FadeSound(last_sound);
1818       if (last_music != MUS_UNDEFINED && music != last_music)
1819         FadeMusic();
1820
1821       fading = getTitleFading(tci);
1822
1823       FadeOut(REDRAW_ALL);
1824
1825       if (tci->is_image)
1826         DrawTitleScreenImage(tci->local_nr, tci->initial);
1827       else
1828         DrawTitleScreenMessage(tci->local_nr, tci->initial);
1829
1830       sound = getTitleSound(tci);
1831       music = getTitleMusic(tci);
1832
1833       if (sound != last_sound)
1834         PlayMenuSoundExt(sound);
1835       if (music != last_music)
1836         PlayMenuMusicExt(music);
1837
1838       last_sound = sound;
1839       last_music = music;
1840
1841       FadeIn(REDRAW_ALL);
1842
1843       DelayReached(&title_delay, 0);    // reset delay counter
1844     }
1845     else
1846     {
1847       FadeMenuSoundsAndMusic();
1848
1849       return_to_main_menu = TRUE;
1850     }
1851   }
1852
1853   if (return_to_main_menu)
1854   {
1855     SetMouseCursor(CURSOR_DEFAULT);
1856
1857     // force full menu screen redraw after displaying title screens
1858     redraw_mask = REDRAW_ALL;
1859
1860     if (game_status_last_screen == GAME_MODE_INFO)
1861     {
1862       SetGameStatus(GAME_MODE_INFO);
1863
1864       info_mode = INFO_MODE_MAIN;
1865
1866       DrawInfoScreen();
1867     }
1868     else        // default: return to main menu
1869     {
1870       SetGameStatus(GAME_MODE_MAIN);
1871
1872       DrawMainMenu();
1873     }
1874   }
1875 }
1876
1877 static void HandleMainMenu_SelectLevel(int step, int direction,
1878                                        int selected_level_nr)
1879 {
1880   int old_level_nr = level_nr;
1881   int new_level_nr;
1882
1883   if (selected_level_nr != NO_DIRECT_LEVEL_SELECT)
1884     new_level_nr = selected_level_nr;
1885   else
1886     new_level_nr = old_level_nr + step * direction;
1887
1888   if (new_level_nr < leveldir_current->first_level)
1889     new_level_nr = leveldir_current->first_level;
1890   if (new_level_nr > leveldir_current->last_level)
1891     new_level_nr = leveldir_current->last_level;
1892
1893   if (setup.handicap && new_level_nr > leveldir_current->handicap_level)
1894   {
1895     // skipping levels is only allowed when trying to skip single level
1896     if (setup.skip_levels && new_level_nr == old_level_nr + 1 &&
1897         Request("Level still unsolved! Skip despite handicap?", REQ_ASK))
1898     {
1899       leveldir_current->handicap_level++;
1900       SaveLevelSetup_SeriesInfo();
1901     }
1902
1903     new_level_nr = leveldir_current->handicap_level;
1904   }
1905
1906   if (new_level_nr != old_level_nr)
1907   {
1908     struct MainControlInfo *mci= getMainControlInfo(MAIN_CONTROL_LEVEL_NUMBER);
1909
1910     PlaySound(SND_MENU_ITEM_SELECTING);
1911
1912     level_nr = new_level_nr;
1913
1914     DrawText(mSX + mci->pos_text->x, mSY + mci->pos_text->y,
1915              int2str(level_nr, menu.main.text.level_number.size),
1916              mci->pos_text->font);
1917
1918     LoadLevel(level_nr);
1919     DrawPreviewLevelInitial();
1920
1921     TapeErase();
1922     LoadTape(level_nr);
1923     DrawCompleteVideoDisplay();
1924
1925     SaveLevelSetup_SeriesInfo();
1926
1927     UpdateScreenMenuGadgets(SCREEN_MASK_MAIN_HAS_SOLUTION, hasSolutionTape());
1928
1929     // needed because DrawPreviewLevelInitial() takes some time
1930     BackToFront();
1931     // SyncDisplay();
1932   }
1933 }
1934
1935 void HandleMainMenu(int mx, int my, int dx, int dy, int button)
1936 {
1937   static int choice = MAIN_CONTROL_GAME;
1938   static boolean button_pressed_last = FALSE;
1939   boolean button_pressed = FALSE;
1940   int pos = choice;
1941   int i;
1942
1943   if (button == MB_MENU_INITIALIZE)
1944   {
1945     DrawCursorAndText_Main(choice, TRUE, FALSE);
1946
1947     return;
1948   }
1949
1950   if (mx || my)         // mouse input
1951   {
1952     pos = -1;
1953
1954     for (i = 0; main_controls[i].nr != -1; i++)
1955     {
1956       if (insideMenuPosRect(main_controls[i].pos_button, mx - mSX, my - mSY) ||
1957           insideTextPosRect(main_controls[i].pos_text,   mx - mSX, my - mSY) ||
1958           insideTextPosRect(main_controls[i].pos_input,  mx - mSX, my - mSY))
1959       {
1960         pos = main_controls[i].nr;
1961
1962         break;
1963       }
1964     }
1965
1966     // check if level preview was clicked
1967     if (insidePreviewRect(&preview, mx - SX, my - SY))
1968       pos = MAIN_CONTROL_GAME;
1969
1970     // handle pressed/unpressed state for active/inactive menu buttons
1971     // (if pos != -1, "i" contains index position corresponding to "pos")
1972     if (button &&
1973         pos >= MAIN_CONTROL_NAME && pos <= MAIN_CONTROL_QUIT &&
1974         insideMenuPosRect(main_controls[i].pos_button, mx - mSX, my - mSY))
1975       button_pressed = TRUE;
1976
1977     if (button_pressed != button_pressed_last)
1978     {
1979       DrawCursorAndText_Main(choice, TRUE, button_pressed);
1980
1981       if (button_pressed)
1982         PlaySound(SND_MENU_BUTTON_PRESSING);
1983       else
1984         PlaySound(SND_MENU_BUTTON_RELEASING);
1985     }
1986   }
1987   else if (dx || dy)    // keyboard input
1988   {
1989     if (dx > 0 && (choice == MAIN_CONTROL_INFO ||
1990                    choice == MAIN_CONTROL_SETUP))
1991       button = MB_MENU_CHOICE;
1992     else if (dy)
1993       pos = choice + dy;
1994   }
1995
1996   if (pos == MAIN_CONTROL_FIRST_LEVEL && !button)
1997   {
1998     HandleMainMenu_SelectLevel(MAX_LEVELS, -1, NO_DIRECT_LEVEL_SELECT);
1999   }
2000   else if (pos == MAIN_CONTROL_LAST_LEVEL && !button)
2001   {
2002     HandleMainMenu_SelectLevel(MAX_LEVELS, +1, NO_DIRECT_LEVEL_SELECT);
2003   }
2004   else if (pos == MAIN_CONTROL_LEVEL_NUMBER && !button)
2005   {
2006     CloseDoor(DOOR_CLOSE_2);
2007
2008     SetGameStatus(GAME_MODE_LEVELNR);
2009
2010     DrawChooseLevelNr();
2011   }
2012   else if (pos >= MAIN_CONTROL_NAME && pos <= MAIN_CONTROL_QUIT)
2013   {
2014     if (button)
2015     {
2016       if (pos != choice)
2017       {
2018         PlaySound(SND_MENU_ITEM_ACTIVATING);
2019
2020         DrawCursorAndText_Main(choice, FALSE, FALSE);
2021         DrawCursorAndText_Main(pos, TRUE, button_pressed);
2022
2023         choice = pos;
2024       }
2025       else if (dx != 0)
2026       {
2027         if (choice != MAIN_CONTROL_INFO &&
2028             choice != MAIN_CONTROL_SETUP)
2029           HandleMainMenu_SelectLevel(1, dx, NO_DIRECT_LEVEL_SELECT);
2030       }
2031     }
2032     else
2033     {
2034       PlaySound(SND_MENU_ITEM_SELECTING);
2035
2036       if (pos == MAIN_CONTROL_NAME)
2037       {
2038         SetGameStatus(GAME_MODE_PSEUDO_TYPENAME);
2039
2040         HandleTypeName(strlen(setup.player_name), 0);
2041       }
2042       else if (pos == MAIN_CONTROL_LEVELS)
2043       {
2044         if (leveldir_first)
2045         {
2046           CloseDoor(DOOR_CLOSE_2);
2047
2048           SetGameStatus(GAME_MODE_LEVELS);
2049
2050           SaveLevelSetup_LastSeries();
2051           SaveLevelSetup_SeriesInfo();
2052
2053           if (setup.internal.choose_from_top_leveldir)
2054             gotoTopLevelDir();
2055
2056           DrawChooseLevelSet();
2057         }
2058       }
2059       else if (pos == MAIN_CONTROL_SCORES)
2060       {
2061         CloseDoor(DOOR_CLOSE_2);
2062
2063         SetGameStatus(GAME_MODE_SCORES);
2064
2065         DrawHallOfFame(level_nr, -1);
2066       }
2067       else if (pos == MAIN_CONTROL_EDITOR)
2068       {
2069         if (leveldir_current->readonly &&
2070             !strEqual(setup.player_name, "Artsoft"))
2071           Request("This level is read only!", REQ_CONFIRM);
2072
2073         CloseDoor(DOOR_CLOSE_2);
2074
2075         SetGameStatus(GAME_MODE_EDITOR);
2076
2077         FadeSetEnterScreen();
2078
2079         DrawLevelEd();
2080       }
2081       else if (pos == MAIN_CONTROL_INFO)
2082       {
2083         CloseDoor(DOOR_CLOSE_2);
2084
2085         SetGameStatus(GAME_MODE_INFO);
2086
2087         info_mode = INFO_MODE_MAIN;
2088
2089         DrawInfoScreen();
2090       }
2091       else if (pos == MAIN_CONTROL_GAME)
2092       {
2093         StartGameActions(network.enabled, setup.autorecord, level.random_seed);
2094       }
2095       else if (pos == MAIN_CONTROL_SETUP)
2096       {
2097         CloseDoor(DOOR_CLOSE_2);
2098
2099         SetGameStatus(GAME_MODE_SETUP);
2100
2101         setup_mode = SETUP_MODE_MAIN;
2102
2103         DrawSetupScreen();
2104       }
2105       else if (pos == MAIN_CONTROL_QUIT)
2106       {
2107         SaveLevelSetup_LastSeries();
2108         SaveLevelSetup_SeriesInfo();
2109
2110         if (Request("Do you really want to quit?", REQ_ASK | REQ_STAY_CLOSED))
2111           SetGameStatus(GAME_MODE_QUIT);
2112       }
2113     }
2114   }
2115
2116   button_pressed_last = button_pressed;
2117 }
2118
2119
2120 // ============================================================================
2121 // info screen functions
2122 // ============================================================================
2123
2124 static struct TokenInfo *info_info;
2125 static int num_info_info;       // number of info entries shown on screen
2126 static int max_info_info;       // total number of info entries in list
2127
2128 static void execInfoTitleScreen(void)
2129 {
2130   info_mode = INFO_MODE_TITLE;
2131
2132   DrawInfoScreen();
2133 }
2134
2135 static void execInfoElements(void)
2136 {
2137   info_mode = INFO_MODE_ELEMENTS;
2138
2139   DrawInfoScreen();
2140 }
2141
2142 static void execInfoMusic(void)
2143 {
2144   info_mode = INFO_MODE_MUSIC;
2145
2146   DrawInfoScreen();
2147 }
2148
2149 static void execInfoCredits(void)
2150 {
2151   info_mode = INFO_MODE_CREDITS;
2152
2153   DrawInfoScreen();
2154 }
2155
2156 static void execInfoProgram(void)
2157 {
2158   info_mode = INFO_MODE_PROGRAM;
2159
2160   DrawInfoScreen();
2161 }
2162
2163 static void execInfoVersion(void)
2164 {
2165   info_mode = INFO_MODE_VERSION;
2166
2167   DrawInfoScreen();
2168 }
2169
2170 static void execInfoLevelSet(void)
2171 {
2172   info_mode = INFO_MODE_LEVELSET;
2173
2174   DrawInfoScreen();
2175 }
2176
2177 static void execExitInfo(void)
2178 {
2179   SetGameStatus(GAME_MODE_MAIN);
2180
2181   DrawMainMenu();
2182 }
2183
2184 static struct TokenInfo info_info_main[] =
2185 {
2186   { TYPE_ENTER_SCREEN,  execInfoTitleScreen,    "Title Screen"          },
2187   { TYPE_ENTER_SCREEN,  execInfoElements,       "Elements Info"         },
2188   { TYPE_ENTER_SCREEN,  execInfoMusic,          "Music Info"            },
2189   { TYPE_ENTER_SCREEN,  execInfoCredits,        "Credits"               },
2190   { TYPE_ENTER_SCREEN,  execInfoProgram,        "Program Info"          },
2191   { TYPE_ENTER_SCREEN,  execInfoVersion,        "Version Info"          },
2192   { TYPE_ENTER_SCREEN,  execInfoLevelSet,       "Level Set Info"        },
2193   { TYPE_EMPTY,         NULL,                   ""                      },
2194   { TYPE_LEAVE_MENU,    execExitInfo,           "Exit"                  },
2195
2196   { 0,                  NULL,                   NULL                    }
2197 };
2198
2199 static int getMenuTextFont(int type)
2200 {
2201   if (type & (TYPE_SWITCH       |
2202               TYPE_YES_NO       |
2203               TYPE_YES_NO_AUTO  |
2204               TYPE_STRING       |
2205               TYPE_PLAYER       |
2206               TYPE_ECS_AGA      |
2207               TYPE_KEYTEXT      |
2208               TYPE_ENTER_LIST   |
2209               TYPE_TEXT_INPUT))
2210     return FONT_MENU_2;
2211   else
2212     return FONT_MENU_1;
2213 }
2214
2215 static struct TokenInfo *setup_info;
2216 static struct TokenInfo setup_info_input[];
2217
2218 static struct TokenInfo *menu_info;
2219
2220 static void DrawCursorAndText_Menu_Ext(struct TokenInfo *token_info,
2221                                        int screen_pos, int menu_info_pos_raw,
2222                                        boolean active)
2223 {
2224   int pos = (menu_info_pos_raw < 0 ? screen_pos : menu_info_pos_raw);
2225   struct TokenInfo *ti = &token_info[pos];
2226   int xpos = MENU_SCREEN_START_XPOS;
2227   int ypos = MENU_SCREEN_START_YPOS + screen_pos;
2228   int font_nr = getMenuTextFont(ti->type);
2229
2230   if (setup_mode == SETUP_MODE_INPUT)
2231     font_nr = FONT_MENU_1;
2232
2233   if (active)
2234     font_nr = FONT_ACTIVE(font_nr);
2235
2236   DrawText(mSX + xpos * 32, mSY + ypos * 32, ti->text, font_nr);
2237
2238   if (ti->type & ~TYPE_SKIP_ENTRY)
2239     drawCursor(screen_pos, active);
2240 }
2241
2242 static void DrawCursorAndText_Menu(int screen_pos, int menu_info_pos_raw,
2243                                    boolean active)
2244 {
2245   DrawCursorAndText_Menu_Ext(menu_info, screen_pos, menu_info_pos_raw, active);
2246 }
2247
2248 static void DrawCursorAndText_Setup(int screen_pos, int menu_info_pos_raw,
2249                                     boolean active)
2250 {
2251   DrawCursorAndText_Menu_Ext(setup_info, screen_pos, menu_info_pos_raw, active);
2252 }
2253
2254 static char *window_size_text;
2255 static char *scaling_type_text;
2256 static char *network_server_text;
2257
2258 static void drawSetupValue(int, int);
2259
2260 static void drawMenuInfoList(int first_entry, int num_page_entries,
2261                              int max_page_entries)
2262 {
2263   int i;
2264
2265   if (first_entry + num_page_entries > max_page_entries)
2266     first_entry = 0;
2267
2268   clearMenuListArea();
2269
2270   for (i = 0; i < num_page_entries; i++)
2271   {
2272     int menu_info_pos = first_entry + i;
2273     struct TokenInfo *si = &menu_info[menu_info_pos];
2274     void *value_ptr = si->value;
2275
2276     // set some entries to "unchangeable" according to other variables
2277     if ((value_ptr == &setup.sound_simple && !audio.sound_available) ||
2278         (value_ptr == &setup.sound_loops  && !audio.loops_available) ||
2279         (value_ptr == &setup.sound_music  && !audio.music_available) ||
2280         (value_ptr == &setup.fullscreen   && !video.fullscreen_available) ||
2281         (value_ptr == &window_size_text   && !video.window_scaling_available) ||
2282         (value_ptr == &scaling_type_text  && !video.window_scaling_available))
2283       si->type |= TYPE_GHOSTED;
2284
2285     if (si->type & (TYPE_ENTER_MENU|TYPE_ENTER_LIST))
2286       initCursor(i, IMG_MENU_BUTTON_ENTER_MENU);
2287     else if (si->type & (TYPE_LEAVE_MENU|TYPE_LEAVE_LIST))
2288       initCursor(i, IMG_MENU_BUTTON_LEAVE_MENU);
2289     else if (si->type & ~TYPE_SKIP_ENTRY)
2290       initCursor(i, IMG_MENU_BUTTON);
2291
2292     DrawCursorAndText_Menu(i, menu_info_pos, FALSE);
2293
2294     if (si->type & TYPE_STRING)
2295     {
2296       int gadget_id = -1;
2297
2298       if (value_ptr == &network_server_text)
2299         gadget_id = SCREEN_CTRL_ID_NETWORK_SERVER;
2300
2301       if (gadget_id != -1)
2302       {
2303         struct GadgetInfo *gi = screen_gadget[gadget_id];
2304         int xpos = MENU_SCREEN_START_XPOS;
2305         int ypos = MENU_SCREEN_START_YPOS + i;
2306         int x = mSX + xpos * 32;
2307         int y = mSY + ypos * 32;
2308
2309         ModifyGadget(gi, GDI_X, x, GDI_Y, y, GDI_END);
2310       }
2311     }
2312
2313     if (si->type & TYPE_VALUE &&
2314         menu_info == setup_info)
2315       drawSetupValue(i, menu_info_pos);
2316   }
2317 }
2318
2319 static void DrawInfoScreen_Main(void)
2320 {
2321   int fade_mask = REDRAW_FIELD;
2322   int i;
2323
2324   if (redraw_mask & REDRAW_ALL)
2325     fade_mask = REDRAW_ALL;
2326
2327   if (CheckIfGlobalBorderOrPlayfieldViewportHasChanged())
2328     fade_mask = REDRAW_ALL;
2329
2330   UnmapAllGadgets();
2331   FadeMenuSoundsAndMusic();
2332
2333   FreeScreenGadgets();
2334   CreateScreenGadgets();
2335
2336   // (needed after displaying title screens which disable auto repeat)
2337   KeyboardAutoRepeatOn();
2338
2339   FadeSetLeaveScreen();
2340
2341   FadeOut(fade_mask);
2342
2343   // needed if different viewport properties defined for info screen
2344   ChangeViewportPropertiesIfNeeded();
2345
2346   SetMainBackgroundImage(IMG_BACKGROUND_INFO);
2347
2348   ClearField();
2349
2350   OpenDoor(GetDoorState() | DOOR_NO_DELAY | DOOR_FORCE_REDRAW);
2351
2352   DrawTextSCentered(mSY - SY + 16, FONT_TITLE_1, "Info Screen");
2353
2354   info_info = info_info_main;
2355
2356   // determine maximal number of info entries that can be displayed on screen
2357   num_info_info = 0;
2358   for (i = 0; info_info[i].type != 0 && i < NUM_MENU_ENTRIES_ON_SCREEN; i++)
2359     num_info_info++;
2360
2361   // determine maximal number of info entries available for menu of info screen
2362   max_info_info = 0;
2363   for (i = 0; info_info[i].type != 0; i++)
2364     max_info_info++;
2365
2366   HandleInfoScreen_Main(0, 0, 0, 0, MB_MENU_INITIALIZE);
2367
2368   MapScreenGadgets(max_info_info);
2369
2370   PlayMenuSoundsAndMusic();
2371
2372   DrawMaskedBorder(fade_mask);
2373
2374   FadeIn(fade_mask);
2375 }
2376
2377 static void changeSetupValue(int, int, int);
2378
2379 static void HandleMenuScreen(int mx, int my, int dx, int dy, int button,
2380                              int mode, int num_page_entries,
2381                              int max_page_entries)
2382 {
2383   static int num_page_entries_all_last[NUM_SPECIAL_GFX_ARGS][MAX_MENU_MODES];
2384   static int choice_stores[NUM_SPECIAL_GFX_ARGS][MAX_MENU_MODES];
2385   static int first_entry_stores[NUM_SPECIAL_GFX_ARGS][MAX_MENU_MODES];
2386   int *num_page_entries_last = num_page_entries_all_last[game_status];
2387   int *choice_store = choice_stores[game_status];
2388   int *first_entry_store = first_entry_stores[game_status];
2389   int choice = choice_store[mode];              // starts with 0
2390   int first_entry = first_entry_store[mode];    // starts with 0
2391   int x = 0;
2392   int y = choice - first_entry;
2393   int y_old = y;
2394   boolean position_set_by_scrollbar = (dx == 999);
2395   int step = (button == 1 ? 1 : button == 2 ? 5 : 10);
2396   int i;
2397
2398   if (button == MB_MENU_INITIALIZE)
2399   {
2400     // check if number of menu page entries has changed (may happen by change
2401     // of custom artwork definition value for 'list_size' for this menu screen)
2402     // (in this case, the last menu position most probably has to be corrected)
2403     if (num_page_entries != num_page_entries_last[mode])
2404     {
2405       choice_store[mode] = first_entry_store[mode] = 0;
2406
2407       choice = first_entry = 0;
2408       y = y_old = 0;
2409
2410       num_page_entries_last[mode] = num_page_entries;
2411     }
2412
2413     // advance to first valid menu entry
2414     while (choice < num_page_entries &&
2415            menu_info[choice].type & TYPE_SKIP_ENTRY)
2416       choice++;
2417
2418     if (position_set_by_scrollbar)
2419       first_entry = first_entry_store[mode] = dy;
2420     else
2421       AdjustScrollbar(SCREEN_CTRL_ID_SCROLL_VERTICAL, max_page_entries,
2422                       NUM_MENU_ENTRIES_ON_SCREEN, first_entry);
2423
2424     drawMenuInfoList(first_entry, num_page_entries, max_page_entries);
2425
2426     if (choice < first_entry)
2427     {
2428       choice = first_entry;
2429
2430       if (menu_info[choice].type & TYPE_SKIP_ENTRY)
2431         choice++;
2432     }
2433     else if (choice > first_entry + num_page_entries - 1)
2434     {
2435       choice = first_entry + num_page_entries - 1;
2436
2437       if (menu_info[choice].type & TYPE_SKIP_ENTRY)
2438         choice--;
2439     }
2440
2441     choice_store[mode] = choice;
2442
2443     DrawCursorAndText_Menu(choice - first_entry, choice, TRUE);
2444
2445     return;
2446   }
2447   else if (button == MB_MENU_LEAVE)
2448   {
2449     PlaySound(SND_MENU_ITEM_SELECTING);
2450
2451     for (i = 0; i < max_page_entries; i++)
2452     {
2453       if (menu_info[i].type & TYPE_LEAVE_MENU)
2454       {
2455         void (*menu_callback_function)(void) = menu_info[i].value;
2456
2457         FadeSetLeaveMenu();
2458
2459         menu_callback_function();
2460
2461         break;  // absolutely needed because function changes 'menu_info'!
2462       }
2463     }
2464
2465     return;
2466   }
2467
2468   if (mx || my)         // mouse input
2469   {
2470     x = (mx - mSX) / 32;
2471     y = (my - mSY) / 32 - MENU_SCREEN_START_YPOS;
2472   }
2473   else if (dx || dy)    // keyboard or scrollbar/scrollbutton input
2474   {
2475     // move cursor instead of scrolling when already at start/end of list
2476     if (dy == -1 * SCROLL_LINE && first_entry == 0)
2477       dy = -1;
2478     else if (dy == +1 * SCROLL_LINE &&
2479              first_entry + num_page_entries == max_page_entries)
2480       dy = 1;
2481
2482     // handle scrolling screen one line or page
2483     if (y + dy < 0 ||
2484         y + dy > num_page_entries - 1)
2485     {
2486       boolean redraw = FALSE;
2487
2488       if (ABS(dy) == SCROLL_PAGE)
2489         step = num_page_entries - 1;
2490
2491       if (dy < 0 && first_entry > 0)
2492       {
2493         // scroll page/line up
2494
2495         first_entry -= step;
2496         if (first_entry < 0)
2497           first_entry = 0;
2498
2499         redraw = TRUE;
2500       }
2501       else if (dy > 0 && first_entry + num_page_entries < max_page_entries)
2502       {
2503         // scroll page/line down
2504
2505         first_entry += step;
2506         if (first_entry + num_page_entries > max_page_entries)
2507           first_entry = MAX(0, max_page_entries - num_page_entries);
2508
2509         redraw = TRUE;
2510       }
2511
2512       if (redraw)
2513       {
2514         choice += first_entry - first_entry_store[mode];
2515
2516         if (choice < first_entry)
2517         {
2518           choice = first_entry;
2519
2520           if (menu_info[choice].type & TYPE_SKIP_ENTRY)
2521             choice++;
2522         }
2523         else if (choice > first_entry + num_page_entries - 1)
2524         {
2525           choice = first_entry + num_page_entries - 1;
2526
2527           if (menu_info[choice].type & TYPE_SKIP_ENTRY)
2528             choice--;
2529         }
2530         else if (menu_info[choice].type & TYPE_SKIP_ENTRY)
2531         {
2532           choice += SIGN(dy);
2533
2534           if (choice < first_entry ||
2535               choice > first_entry + num_page_entries - 1)
2536           first_entry += SIGN(dy);
2537         }
2538
2539         first_entry_store[mode] = first_entry;
2540         choice_store[mode] = choice;
2541
2542         drawMenuInfoList(first_entry, num_page_entries, max_page_entries);
2543
2544         DrawCursorAndText_Menu(choice - first_entry, choice, TRUE);
2545
2546         AdjustScrollbar(SCREEN_CTRL_ID_SCROLL_VERTICAL, max_page_entries,
2547                         NUM_MENU_ENTRIES_ON_SCREEN, first_entry);
2548       }
2549
2550       return;
2551     }
2552
2553     if (dx)
2554     {
2555       int menu_navigation_type = (dx < 0 ? TYPE_LEAVE : TYPE_ENTER);
2556
2557       if (menu_info[choice].type & menu_navigation_type ||
2558           menu_info[choice].type & TYPE_BOOLEAN_STYLE ||
2559           menu_info[choice].type & TYPE_YES_NO_AUTO ||
2560           menu_info[choice].type & TYPE_PLAYER)
2561         button = MB_MENU_CHOICE;
2562     }
2563     else if (dy)
2564       y += dy;
2565
2566     // jump to next non-empty menu entry (up or down)
2567     while (first_entry + y > 0 &&
2568            first_entry + y < max_page_entries - 1 &&
2569            menu_info[first_entry + y].type & TYPE_SKIP_ENTRY)
2570       y += dy;
2571
2572     if (!IN_VIS_MENU(x, y))
2573     {
2574       choice += y - y_old;
2575
2576       if (choice < first_entry)
2577         first_entry = choice;
2578       else if (choice > first_entry + num_page_entries - 1)
2579         first_entry = choice - num_page_entries + 1;
2580
2581       if (first_entry >= 0 &&
2582           first_entry + num_page_entries <= max_page_entries)
2583       {
2584         first_entry_store[mode] = first_entry;
2585
2586         if (choice < first_entry)
2587           choice = first_entry;
2588         else if (choice > first_entry + num_page_entries - 1)
2589           choice = first_entry + num_page_entries - 1;
2590
2591         choice_store[mode] = choice;
2592
2593         drawMenuInfoList(first_entry, num_page_entries, max_page_entries);
2594
2595         DrawCursorAndText_Menu(choice - first_entry, choice, TRUE);
2596
2597         AdjustScrollbar(SCREEN_CTRL_ID_SCROLL_VERTICAL, max_page_entries,
2598                         NUM_MENU_ENTRIES_ON_SCREEN, first_entry);
2599       }
2600
2601       return;
2602     }
2603   }
2604
2605   if (!anyScrollbarGadgetActive() &&
2606       IN_VIS_MENU(x, y) &&
2607       mx < screen_gadget[SCREEN_CTRL_ID_SCROLL_VERTICAL]->x &&
2608       y >= 0 && y < num_page_entries)
2609   {
2610     if (button)
2611     {
2612       if (first_entry + y != choice &&
2613           menu_info[first_entry + y].type & ~TYPE_SKIP_ENTRY)
2614       {
2615         PlaySound(SND_MENU_ITEM_ACTIVATING);
2616
2617         DrawCursorAndText_Menu(choice - first_entry, choice, FALSE);
2618         DrawCursorAndText_Menu(y, first_entry + y, TRUE);
2619
2620         choice = choice_store[mode] = first_entry + y;
2621       }
2622       else if (dx < 0)
2623       {
2624         PlaySound(SND_MENU_ITEM_SELECTING);
2625
2626         for (i = 0; menu_info[i].type != 0; i++)
2627         {
2628           if (menu_info[i].type & TYPE_LEAVE_MENU)
2629           {
2630             void (*menu_callback_function)(void) = menu_info[i].value;
2631
2632             FadeSetLeaveMenu();
2633
2634             menu_callback_function();
2635
2636             // absolutely needed because function changes 'menu_info'!
2637             break;
2638           }
2639         }
2640
2641         return;
2642       }
2643     }
2644     else if (!(menu_info[first_entry + y].type & TYPE_GHOSTED))
2645     {
2646       PlaySound(SND_MENU_ITEM_SELECTING);
2647
2648       // when selecting key headline, execute function for key value change
2649       if (menu_info[first_entry + y].type & TYPE_KEYTEXT &&
2650           menu_info[first_entry + y + 1].type & TYPE_KEY)
2651         y++;
2652
2653       // when selecting string value, execute function for list selection
2654       if (menu_info[first_entry + y].type & TYPE_STRING && y > 0 &&
2655           menu_info[first_entry + y - 1].type & TYPE_ENTER_LIST)
2656         y--;
2657
2658       // when selecting string value, execute function for text input gadget
2659       if (menu_info[first_entry + y].type & TYPE_STRING && y > 0 &&
2660           menu_info[first_entry + y - 1].type & TYPE_TEXT_INPUT)
2661         y--;
2662
2663       if (menu_info[first_entry + y].type & TYPE_ENTER_OR_LEAVE)
2664       {
2665         void (*menu_callback_function)(void) =
2666           menu_info[first_entry + y].value;
2667
2668         FadeSetFromType(menu_info[first_entry + y].type);
2669
2670         menu_callback_function();
2671       }
2672       else if (menu_info[first_entry + y].type & TYPE_TEXT_INPUT)
2673       {
2674         void (*gadget_callback_function)(void) =
2675           menu_info[first_entry + y].value;
2676
2677         gadget_callback_function();
2678       }
2679       else if (menu_info[first_entry + y].type & TYPE_VALUE &&
2680                menu_info == setup_info)
2681       {
2682         changeSetupValue(y, first_entry + y, dx);
2683       }
2684     }
2685   }
2686 }
2687
2688 void HandleInfoScreen_Main(int mx, int my, int dx, int dy, int button)
2689 {
2690   menu_info = info_info;
2691
2692   HandleMenuScreen(mx, my, dx, dy, button,
2693                    info_mode, num_info_info, max_info_info);
2694 }
2695
2696 static int getMenuFontSpacing(int spacing_height, int font_nr)
2697 {
2698   int font_spacing = getFontHeight(font_nr) + EXTRA_SPACING(game_status);
2699
2700   return (spacing_height < 0 ? ABS(spacing_height) * font_spacing :
2701           spacing_height);
2702 }
2703
2704 static int getMenuTextSpacing(int spacing_height, int font_nr)
2705 {
2706   return (getMenuFontSpacing(spacing_height, font_nr) +
2707           EXTRA_SPACING(game_status));
2708 }
2709
2710 static int getMenuTextStep(int spacing_height, int font_nr)
2711 {
2712   return getFontHeight(font_nr) + getMenuTextSpacing(spacing_height, font_nr);
2713 }
2714
2715 void DrawInfoScreen_NotAvailable(char *text_title, char *text_error)
2716 {
2717   int font_title = MENU_INFO_FONT_TITLE;
2718   int font_error = FONT_TEXT_2;
2719   int font_foot  = MENU_INFO_FONT_FOOT;
2720   int spacing_title = menu.headline1_spacing_info[info_mode];
2721   int ystep_title = getMenuTextStep(spacing_title, font_title);
2722   int ystart1 = mSY - SY + MENU_SCREEN_INFO_YSTART1;
2723   int ystart2 = ystart1 + ystep_title;
2724   int ybottom = mSY - SY + MENU_SCREEN_INFO_YBOTTOM;
2725
2726   SetMainBackgroundImageIfDefined(IMG_BACKGROUND_INFO);
2727
2728   FadeOut(REDRAW_FIELD);
2729
2730   ClearField();
2731   DrawHeadline();
2732
2733   DrawTextSCentered(ystart1, font_title, text_title);
2734   DrawTextSCentered(ystart2, font_error, text_error);
2735
2736   DrawTextSCentered(ybottom, font_foot,
2737                     "Press any key or button for info menu");
2738
2739   FadeIn(REDRAW_FIELD);
2740 }
2741
2742 void DrawInfoScreen_HelpAnim(int start, int max_anims, boolean init)
2743 {
2744   static int infoscreen_step[MAX_INFO_ELEMENTS_ON_SCREEN];
2745   static int infoscreen_frame[MAX_INFO_ELEMENTS_ON_SCREEN];
2746   int font_title = MENU_INFO_FONT_TITLE;
2747   int font_foot  = MENU_INFO_FONT_FOOT;
2748   int xstart  = mSX + MENU_SCREEN_INFO_SPACE_LEFT;
2749   int ystart1 = mSY - SY + MENU_SCREEN_INFO_YSTART1;
2750   int ystart2 = mSY + MENU_SCREEN_INFO_YSTART2;
2751   int ybottom = mSY - SY + MENU_SCREEN_INFO_YBOTTOM;
2752   int ystep = MENU_SCREEN_INFO_YSTEP;
2753   int element, action, direction;
2754   int graphic;
2755   int delay;
2756   int sync_frame;
2757   int i, j;
2758
2759   if (init)
2760   {
2761     for (i = 0; i < NUM_INFO_ELEMENTS_ON_SCREEN; i++)
2762       infoscreen_step[i] = infoscreen_frame[i] = 0;
2763
2764     ClearField();
2765     DrawHeadline();
2766
2767     DrawTextSCentered(ystart1, font_title, "The Game Elements:");
2768
2769     DrawTextSCentered(ybottom, font_foot,
2770                       "Press any key or button for next page");
2771
2772     FrameCounter = 0;
2773   }
2774
2775   i = j = 0;
2776   while (helpanim_info[j].element != HELPANIM_LIST_END)
2777   {
2778     if (i >= start + NUM_INFO_ELEMENTS_ON_SCREEN ||
2779         i >= max_anims)
2780       break;
2781     else if (i < start)
2782     {
2783       while (helpanim_info[j].element != HELPANIM_LIST_NEXT)
2784         j++;
2785
2786       j++;
2787       i++;
2788
2789       continue;
2790     }
2791
2792     j += infoscreen_step[i - start];
2793
2794     element = helpanim_info[j].element;
2795     action = helpanim_info[j].action;
2796     direction = helpanim_info[j].direction;
2797
2798     if (element < 0)
2799       element = EL_UNKNOWN;
2800
2801     if (action != -1 && direction != -1)
2802       graphic = el_act_dir2img(element, action, direction);
2803     else if (action != -1)
2804       graphic = el_act2img(element, action);
2805     else if (direction != -1)
2806       graphic = el_dir2img(element, direction);
2807     else
2808       graphic = el2img(element);
2809
2810     delay = helpanim_info[j++].delay;
2811
2812     if (delay == -1)
2813       delay = 1000000;
2814
2815     if (infoscreen_frame[i - start] == 0)
2816     {
2817       sync_frame = 0;
2818       infoscreen_frame[i - start] = delay - 1;
2819     }
2820     else
2821     {
2822       sync_frame = delay - infoscreen_frame[i - start];
2823       infoscreen_frame[i - start]--;
2824     }
2825
2826     if (helpanim_info[j].element == HELPANIM_LIST_NEXT)
2827     {
2828       if (!infoscreen_frame[i - start])
2829         infoscreen_step[i - start] = 0;
2830     }
2831     else
2832     {
2833       if (!infoscreen_frame[i - start])
2834         infoscreen_step[i - start]++;
2835       while (helpanim_info[j].element != HELPANIM_LIST_NEXT)
2836         j++;
2837     }
2838
2839     j++;
2840
2841     ClearRectangleOnBackground(drawto, xstart, ystart2 + (i - start) * ystep,
2842                                TILEX, TILEY);
2843     DrawFixedGraphicAnimationExt(drawto, xstart, ystart2 + (i - start) * ystep,
2844                                  graphic, sync_frame, USE_MASKING);
2845
2846     if (init)
2847       DrawInfoScreen_HelpText(element, action, direction, i - start);
2848
2849     i++;
2850   }
2851
2852   redraw_mask |= REDRAW_FIELD;
2853
2854   FrameCounter++;
2855 }
2856
2857 static char *getHelpText(int element, int action, int direction)
2858 {
2859   char token[MAX_LINE_LEN];
2860
2861   strcpy(token, element_info[element].token_name);
2862
2863   if (action != -1)
2864     strcat(token, element_action_info[action].suffix);
2865
2866   if (direction != -1)
2867     strcat(token, element_direction_info[MV_DIR_TO_BIT(direction)].suffix);
2868
2869   return getHashEntry(helptext_info, token);
2870 }
2871
2872 void DrawInfoScreen_HelpText(int element, int action, int direction, int ypos)
2873 {
2874   int font_nr = FONT_INFO_ELEMENTS;
2875   int font_width = getFontWidth(font_nr);
2876   int font_height = getFontHeight(font_nr);
2877   int yoffset = (TILEX - 2 * font_height) / 2;
2878   int xstart = mSX + MENU_SCREEN_INFO_SPACE_LEFT + TILEX + MINI_TILEX;
2879   int ystart = mSY + MENU_SCREEN_INFO_YSTART2 + yoffset;
2880   int ystep = TILEY + 4;
2881   int pad_left = xstart - SX;
2882   int pad_right = MENU_SCREEN_INFO_SPACE_RIGHT;
2883   int max_chars_per_line = (SXSIZE - pad_left - pad_right) / font_width;
2884   int max_lines_per_text = 2;
2885   char *text = NULL;
2886
2887   if (action != -1 && direction != -1)          // element.action.direction
2888     text = getHelpText(element, action, direction);
2889
2890   if (text == NULL && action != -1)             // element.action
2891     text = getHelpText(element, action, -1);
2892
2893   if (text == NULL && direction != -1)          // element.direction
2894     text = getHelpText(element, -1, direction);
2895
2896   if (text == NULL)                             // base element
2897     text = getHelpText(element, -1, -1);
2898
2899   if (text == NULL)                             // not found
2900     text = "No description available";
2901
2902   if (strlen(text) <= max_chars_per_line)       // only one line of text
2903     ystart += getFontHeight(font_nr) / 2;
2904
2905   DrawTextBuffer(xstart, ystart + ypos * ystep, text, font_nr,
2906                  max_chars_per_line, -1, max_lines_per_text, 0, -1,
2907                  TRUE, FALSE, FALSE);
2908 }
2909
2910 static void DrawInfoScreen_TitleScreen(void)
2911 {
2912   SetGameStatus(GAME_MODE_TITLE);
2913
2914   DrawTitleScreen();
2915 }
2916
2917 void HandleInfoScreen_TitleScreen(int button)
2918 {
2919   HandleTitleScreen(0, 0, 0, 0, button);
2920 }
2921
2922 static void DrawInfoScreen_Elements(void)
2923 {
2924   SetMainBackgroundImageIfDefined(IMG_BACKGROUND_INFO_ELEMENTS);
2925
2926   FadeOut(REDRAW_FIELD);
2927
2928   LoadHelpAnimInfo();
2929   LoadHelpTextInfo();
2930
2931   HandleInfoScreen_Elements(MB_MENU_INITIALIZE);
2932
2933   FadeIn(REDRAW_FIELD);
2934 }
2935
2936 void HandleInfoScreen_Elements(int button)
2937 {
2938   static unsigned int info_delay = 0;
2939   static int num_anims;
2940   static int num_pages;
2941   static int page;
2942   int anims_per_page = NUM_INFO_ELEMENTS_ON_SCREEN;
2943   int i;
2944
2945   if (button == MB_MENU_INITIALIZE)
2946   {
2947     boolean new_element = TRUE;
2948
2949     num_anims = 0;
2950
2951     for (i = 0; helpanim_info[i].element != HELPANIM_LIST_END; i++)
2952     {
2953       if (helpanim_info[i].element == HELPANIM_LIST_NEXT)
2954         new_element = TRUE;
2955       else if (new_element)
2956       {
2957         num_anims++;
2958         new_element = FALSE;
2959       }
2960     }
2961
2962     num_pages = (num_anims + anims_per_page - 1) / anims_per_page;
2963     page = 0;
2964   }
2965
2966   if (button == MB_MENU_LEAVE)
2967   {
2968     PlaySound(SND_MENU_ITEM_SELECTING);
2969
2970     info_mode = INFO_MODE_MAIN;
2971     DrawInfoScreen();
2972
2973     return;
2974   }
2975   else if (button == MB_MENU_CHOICE || button == MB_MENU_INITIALIZE)
2976   {
2977     if (button != MB_MENU_INITIALIZE)
2978     {
2979       PlaySound(SND_MENU_ITEM_SELECTING);
2980
2981       page++;
2982     }
2983
2984     if (page >= num_pages)
2985     {
2986       FadeMenuSoundsAndMusic();
2987
2988       info_mode = INFO_MODE_MAIN;
2989       DrawInfoScreen();
2990
2991       return;
2992     }
2993
2994     if (page > 0)
2995       FadeSetNextScreen();
2996
2997     if (button != MB_MENU_INITIALIZE)
2998       FadeOut(REDRAW_FIELD);
2999
3000     DrawInfoScreen_HelpAnim(page * anims_per_page, num_anims, TRUE);
3001
3002     if (button != MB_MENU_INITIALIZE)
3003       FadeIn(REDRAW_FIELD);
3004   }
3005   else
3006   {
3007     if (DelayReached(&info_delay, GameFrameDelay))
3008       if (page < num_pages)
3009         DrawInfoScreen_HelpAnim(page * anims_per_page, num_anims, FALSE);
3010
3011     PlayMenuSoundIfLoop();
3012   }
3013 }
3014
3015 static void DrawInfoScreen_Music(void)
3016 {
3017   SetMainBackgroundImageIfDefined(IMG_BACKGROUND_INFO_MUSIC);
3018
3019   FadeOut(REDRAW_FIELD);
3020
3021   ClearField();
3022   DrawHeadline();
3023
3024   LoadMusicInfo();
3025
3026   HandleInfoScreen_Music(MB_MENU_INITIALIZE);
3027
3028   FadeIn(REDRAW_FIELD);
3029 }
3030
3031 void HandleInfoScreen_Music(int button)
3032 {
3033   static struct MusicFileInfo *list = NULL;
3034   int font_title = MENU_INFO_FONT_TITLE;
3035   int font_head  = MENU_INFO_FONT_HEAD;
3036   int font_text  = MENU_INFO_FONT_TEXT;
3037   int font_foot  = MENU_INFO_FONT_FOOT;
3038   int spacing_title = menu.headline1_spacing_info[info_mode];
3039   int spacing_head  = menu.headline2_spacing_info[info_mode];
3040   int ystep_title = getMenuTextStep(spacing_title, font_title);
3041   int ystep_head  = getMenuTextStep(spacing_head,  font_head);
3042   int ystart  = mSY - SY + MENU_SCREEN_INFO_YSTART1;
3043   int ybottom = mSY - SY + MENU_SCREEN_INFO_YBOTTOM;
3044
3045   if (button == MB_MENU_INITIALIZE)
3046   {
3047     list = music_file_info;
3048
3049     if (list == NULL)
3050     {
3051       FadeMenuSoundsAndMusic();
3052
3053       ClearField();
3054       DrawHeadline();
3055
3056       DrawTextSCentered(ystart, font_title,
3057                         "No music info for this level set.");
3058
3059       DrawTextSCentered(ybottom, font_foot,
3060                         "Press any key or button for info menu");
3061
3062       return;
3063     }
3064   }
3065
3066   if (button == MB_MENU_LEAVE)
3067   {
3068     PlaySound(SND_MENU_ITEM_SELECTING);
3069
3070     FadeMenuSoundsAndMusic();
3071
3072     info_mode = INFO_MODE_MAIN;
3073     DrawInfoScreen();
3074
3075     return;
3076   }
3077   else if (button == MB_MENU_CHOICE || button == MB_MENU_INITIALIZE)
3078   {
3079     if (button != MB_MENU_INITIALIZE)
3080     {
3081       PlaySound(SND_MENU_ITEM_SELECTING);
3082
3083       if (list != NULL)
3084         list = list->next;
3085     }
3086
3087     if (list == NULL)
3088     {
3089       FadeMenuSoundsAndMusic();
3090
3091       info_mode = INFO_MODE_MAIN;
3092       DrawInfoScreen();
3093
3094       return;
3095     }
3096
3097     FadeMenuSoundsAndMusic();
3098
3099     if (list != music_file_info)
3100       FadeSetNextScreen();
3101
3102     if (button != MB_MENU_INITIALIZE)
3103       FadeOut(REDRAW_FIELD);
3104
3105     ClearField();
3106     DrawHeadline();
3107
3108     if (list->is_sound)
3109     {
3110       int sound = list->music;
3111
3112       if (sound_info[sound].loop)
3113         PlaySoundLoop(sound);
3114       else
3115         PlaySound(sound);
3116
3117       DrawTextSCentered(ystart, font_title, "The Game Background Sounds:");
3118     }
3119     else
3120     {
3121       int music = list->music;
3122
3123       if (music_info[music].loop)
3124         PlayMusicLoop(music);
3125       else
3126         PlayMusic(music);
3127
3128       DrawTextSCentered(ystart, font_title, "The Game Background Music:");
3129     }
3130
3131     ystart += ystep_title;
3132
3133     if (!strEqual(list->title, UNKNOWN_NAME))
3134     {
3135       if (!strEqual(list->title_header, UNKNOWN_NAME))
3136       {
3137         DrawTextSCentered(ystart, font_head, list->title_header);
3138         ystart += ystep_head;
3139       }
3140
3141       DrawTextFCentered(ystart, font_text, "\"%s\"", list->title);
3142       ystart += ystep_head;
3143     }
3144
3145     if (!strEqual(list->artist, UNKNOWN_NAME))
3146     {
3147       if (!strEqual(list->artist_header, UNKNOWN_NAME))
3148         DrawTextSCentered(ystart, font_head, list->artist_header);
3149       else
3150         DrawTextSCentered(ystart, font_head, "by");
3151
3152       ystart += ystep_head;
3153
3154       DrawTextFCentered(ystart, font_text, "%s", list->artist);
3155       ystart += ystep_head;
3156     }
3157
3158     if (!strEqual(list->album, UNKNOWN_NAME))
3159     {
3160       if (!strEqual(list->album_header, UNKNOWN_NAME))
3161         DrawTextSCentered(ystart, font_head, list->album_header);
3162       else
3163         DrawTextSCentered(ystart, font_head, "from the album");
3164
3165       ystart += ystep_head;
3166
3167       DrawTextFCentered(ystart, font_text, "\"%s\"", list->album);
3168       ystart += ystep_head;
3169     }
3170
3171     if (!strEqual(list->year, UNKNOWN_NAME))
3172     {
3173       if (!strEqual(list->year_header, UNKNOWN_NAME))
3174         DrawTextSCentered(ystart, font_head, list->year_header);
3175       else
3176         DrawTextSCentered(ystart, font_head, "from the year");
3177
3178       ystart += ystep_head;
3179
3180       DrawTextFCentered(ystart, font_text, "%s", list->year);
3181       ystart += ystep_head;
3182     }
3183
3184     DrawTextSCentered(ybottom, FONT_TEXT_4,
3185                       "Press any key or button for next page");
3186
3187     if (button != MB_MENU_INITIALIZE)
3188       FadeIn(REDRAW_FIELD);
3189   }
3190
3191   if (list != NULL && list->is_sound && sound_info[list->music].loop)
3192     PlaySoundLoop(list->music);
3193 }
3194
3195 static void DrawInfoScreen_CreditsScreen(int screen_nr)
3196 {
3197   int font_title = MENU_INFO_FONT_TITLE;
3198   int font_head  = MENU_INFO_FONT_HEAD;
3199   int font_text  = MENU_INFO_FONT_TEXT;
3200   int font_foot  = MENU_INFO_FONT_FOOT;
3201   int spacing_title = menu.headline1_spacing_info[info_mode];
3202   int spacing_head  = menu.headline2_spacing_info[info_mode];
3203   int spacing_para  = menu.paragraph_spacing_info[info_mode];
3204   int spacing_line  = menu.line_spacing_info[info_mode];
3205   int ystep_title = getMenuTextStep(spacing_title, font_title);
3206   int ystep_head  = getMenuTextStep(spacing_head,  font_head);
3207   int ystep_para  = getMenuTextStep(spacing_para,  font_text);
3208   int ystep_line  = getMenuTextStep(spacing_line,  font_text);
3209   int ystart  = mSY - SY + MENU_SCREEN_INFO_YSTART1;
3210   int ybottom = mSY - SY + MENU_SCREEN_INFO_YBOTTOM;
3211
3212   ClearField();
3213   DrawHeadline();
3214
3215   DrawTextSCentered(ystart, font_title, "Credits:");
3216   ystart += ystep_title;
3217
3218   if (screen_nr == 0)
3219   {
3220     DrawTextSCentered(ystart, font_head,
3221                       "Special thanks to");
3222     ystart += ystep_head;
3223     DrawTextSCentered(ystart, font_text,
3224                       "Peter Liepa");
3225     ystart += ystep_head;
3226     DrawTextSCentered(ystart, font_head,
3227                       "for creating");
3228     ystart += ystep_head;
3229     DrawTextSCentered(ystart, font_text,
3230                       "\"Boulder Dash\"");
3231     ystart += ystep_head;
3232     DrawTextSCentered(ystart, font_head,
3233                       "in the year");
3234     ystart += ystep_head;
3235     DrawTextSCentered(ystart, font_text,
3236                       "1984");
3237     ystart += ystep_head;
3238     DrawTextSCentered(ystart, font_head,
3239                       "published by");
3240     ystart += ystep_head;
3241     DrawTextSCentered(ystart, font_text,
3242                       "First Star Software");
3243   }
3244   else if (screen_nr == 1)
3245   {
3246     DrawTextSCentered(ystart, font_head,
3247                       "Special thanks to");
3248     ystart += ystep_head;
3249     DrawTextSCentered(ystart, font_text,
3250                       "Klaus Heinz & Volker Wertich");
3251     ystart += ystep_head;
3252     DrawTextSCentered(ystart, font_head,
3253                       "for creating");
3254     ystart += ystep_head;
3255     DrawTextSCentered(ystart, font_text,
3256                       "\"Emerald Mine\"");
3257     ystart += ystep_head;
3258     DrawTextSCentered(ystart, font_head,
3259                       "in the year");
3260     ystart += ystep_head;
3261     DrawTextSCentered(ystart, font_text,
3262                       "1987");
3263     ystart += ystep_head;
3264     DrawTextSCentered(ystart, font_head,
3265                       "published by");
3266     ystart += ystep_head;
3267     DrawTextSCentered(ystart, font_text,
3268                       "Kingsoft");
3269   }
3270   else if (screen_nr == 2)
3271   {
3272     DrawTextSCentered(ystart, font_head,
3273                       "Special thanks to");
3274     ystart += ystep_head;
3275     DrawTextSCentered(ystart, font_text,
3276                       "Michael Stopp & Philip Jespersen");
3277     ystart += ystep_head;
3278     DrawTextSCentered(ystart, font_head,
3279                       "for creating");
3280     ystart += ystep_head;
3281     DrawTextSCentered(ystart, font_text,
3282                       "\"Supaplex\"");
3283     ystart += ystep_head;
3284     DrawTextSCentered(ystart, font_head,
3285                       "in the year");
3286     ystart += ystep_head;
3287     DrawTextSCentered(ystart, font_text,
3288                       "1991");
3289     ystart += ystep_head;
3290     DrawTextSCentered(ystart, font_head,
3291                       "published by");
3292     ystart += ystep_head;
3293     DrawTextSCentered(ystart, font_text,
3294                       "Digital Integration");
3295   }
3296   else if (screen_nr == 3)
3297   {
3298     DrawTextSCentered(ystart, font_head,
3299                       "Special thanks to");
3300     ystart += ystep_head;
3301     DrawTextSCentered(ystart, font_text,
3302                       "Hiroyuki Imabayashi");
3303     ystart += ystep_head;
3304     DrawTextSCentered(ystart, font_head,
3305                       "for creating");
3306     ystart += ystep_head;
3307     DrawTextSCentered(ystart, font_text,
3308                       "\"Sokoban\"");
3309     ystart += ystep_head;
3310     DrawTextSCentered(ystart, font_head,
3311                       "in the year");
3312     ystart += ystep_head;
3313     DrawTextSCentered(ystart, font_text,
3314                       "1982");
3315     ystart += ystep_head;
3316     DrawTextSCentered(ystart, font_head,
3317                       "published by");
3318     ystart += ystep_head;
3319     DrawTextSCentered(ystart, font_text,
3320                       "Thinking Rabbit");
3321   }
3322   else if (screen_nr == 4)
3323   {
3324     DrawTextSCentered(ystart, font_head,
3325                       "Special thanks to");
3326     ystart += ystep_head;
3327     DrawTextSCentered(ystart, font_text,
3328                       "Alan Bond");
3329     ystart += ystep_head;
3330     DrawTextSCentered(ystart, font_head,
3331                       "and");
3332     ystart += ystep_head;
3333     DrawTextSCentered(ystart, font_text,
3334                       "J\xfcrgen Bonhagen");
3335     ystart += ystep_head;
3336     DrawTextSCentered(ystart, font_head,
3337                       "for the continuous creation");
3338     ystart += ystep_line;
3339     DrawTextSCentered(ystart, font_head,
3340                       "of outstanding level sets");
3341   }
3342   else if (screen_nr == 5)
3343   {
3344     DrawTextSCentered(ystart, font_head,
3345                       "Thanks to");
3346     ystart += ystep_head;
3347     DrawTextSCentered(ystart, font_text,
3348                       "Peter Elzner");
3349     ystart += ystep_head;
3350     DrawTextSCentered(ystart, font_head,
3351                       "for ideas and inspiration by");
3352     ystart += ystep_head;
3353     DrawTextSCentered(ystart, font_text,
3354                       "Diamond Caves");
3355     ystart += ystep_para;
3356
3357     DrawTextSCentered(ystart, font_head,
3358                       "Thanks to");
3359     ystart += ystep_head;
3360     DrawTextSCentered(ystart, font_text,
3361                       "Steffest");
3362     ystart += ystep_head;
3363     DrawTextSCentered(ystart, font_head,
3364                       "for ideas and inspiration by");
3365     ystart += ystep_head;
3366     DrawTextSCentered(ystart, font_text,
3367                       "DX-Boulderdash");
3368   }
3369   else if (screen_nr == 6)
3370   {
3371     DrawTextSCentered(ystart, font_head,
3372                       "Thanks to");
3373     ystart += ystep_head;
3374     DrawTextSCentered(ystart, font_text,
3375                       "David Tritscher");
3376     ystart += ystep_head;
3377     DrawTextSCentered(ystart, font_head,
3378                       "for the code base used for the");
3379     ystart += ystep_line;
3380     DrawTextSCentered(ystart, font_head,
3381                       "native Emerald Mine engine");
3382   }
3383   else if (screen_nr == 7)
3384   {
3385     DrawTextSCentered(ystart, font_head,
3386                       "Thanks to");
3387     ystart += ystep_head;
3388     DrawTextSCentered(ystart, font_text,
3389                       "Guido Schulz");
3390     ystart += ystep_head;
3391     DrawTextSCentered(ystart, font_head,
3392                       "for the initial DOS port");
3393     ystart += ystep_para;
3394
3395     DrawTextSCentered(ystart, font_head,
3396                       "Thanks to");
3397     ystart += ystep_head;
3398     DrawTextSCentered(ystart, font_text,
3399                       "Karl H\xf6rnell");
3400     ystart += ystep_head;
3401     DrawTextSCentered(ystart, font_head,
3402                       "for some additional toons");
3403   }
3404   else if (screen_nr == 8)
3405   {
3406     DrawTextSCentered(ystart, font_head,
3407                       "And not to forget:");
3408     ystart += ystep_head;
3409     DrawTextSCentered(ystart, font_head,
3410                       "Many thanks to");
3411     ystart += ystep_head;
3412     DrawTextSCentered(ystart, font_text,
3413                       "All those who contributed");
3414     ystart += ystep_line;
3415     DrawTextSCentered(ystart, font_text,
3416                       "levels to this game");
3417     ystart += ystep_line;
3418     DrawTextSCentered(ystart, font_text,
3419                       "since 1995");
3420   }
3421
3422   DrawTextSCentered(ybottom, font_foot,
3423                     "Press any key or button for next page");
3424 }
3425
3426 static void DrawInfoScreen_Credits(void)
3427 {
3428   SetMainBackgroundImageIfDefined(IMG_BACKGROUND_INFO_CREDITS);
3429
3430   FadeMenuSoundsAndMusic();
3431
3432   FadeOut(REDRAW_FIELD);
3433
3434   HandleInfoScreen_Credits(MB_MENU_INITIALIZE);
3435
3436   FadeIn(REDRAW_FIELD);
3437 }
3438
3439 void HandleInfoScreen_Credits(int button)
3440 {
3441   static int screen_nr = 0;
3442   int num_screens = 9;
3443
3444   if (button == MB_MENU_INITIALIZE)
3445   {
3446     screen_nr = 0;
3447
3448     // DrawInfoScreen_CreditsScreen(screen_nr);
3449   }
3450
3451   if (button == MB_MENU_LEAVE)
3452   {
3453     PlaySound(SND_MENU_ITEM_SELECTING);
3454
3455     info_mode = INFO_MODE_MAIN;
3456     DrawInfoScreen();
3457
3458     return;
3459   }
3460   else if (button == MB_MENU_CHOICE || button == MB_MENU_INITIALIZE)
3461   {
3462     if (button != MB_MENU_INITIALIZE)
3463     {
3464       PlaySound(SND_MENU_ITEM_SELECTING);
3465
3466       screen_nr++;
3467     }
3468
3469     if (screen_nr >= num_screens)
3470     {
3471       FadeMenuSoundsAndMusic();
3472
3473       info_mode = INFO_MODE_MAIN;
3474       DrawInfoScreen();
3475
3476       return;
3477     }
3478
3479     if (screen_nr > 0)
3480       FadeSetNextScreen();
3481
3482     if (button != MB_MENU_INITIALIZE)
3483       FadeOut(REDRAW_FIELD);
3484
3485     DrawInfoScreen_CreditsScreen(screen_nr);
3486
3487     if (button != MB_MENU_INITIALIZE)
3488       FadeIn(REDRAW_FIELD);
3489   }
3490   else
3491   {
3492     PlayMenuSoundIfLoop();
3493   }
3494 }
3495
3496 static void DrawInfoScreen_Program(void)
3497 {
3498   int font_title = MENU_INFO_FONT_TITLE;
3499   int font_head  = MENU_INFO_FONT_HEAD;
3500   int font_text  = MENU_INFO_FONT_TEXT;
3501   int font_foot  = MENU_INFO_FONT_FOOT;
3502   int spacing_title = menu.headline1_spacing_info[info_mode];
3503   int spacing_head  = menu.headline2_spacing_info[info_mode];
3504   int spacing_para  = menu.paragraph_spacing_info[info_mode];
3505   int spacing_line  = menu.line_spacing_info[info_mode];
3506   int ystep_title = getMenuTextStep(spacing_title, font_title);
3507   int ystep_head  = getMenuTextStep(spacing_head,  font_head);
3508   int ystep_para  = getMenuTextStep(spacing_para,  font_text);
3509   int ystep_line  = getMenuTextStep(spacing_line,  font_text);
3510   int ystart  = mSY - SY + MENU_SCREEN_INFO_YSTART1;
3511   int ybottom = mSY - SY + MENU_SCREEN_INFO_YBOTTOM;
3512
3513   SetMainBackgroundImageIfDefined(IMG_BACKGROUND_INFO_PROGRAM);
3514
3515   FadeOut(REDRAW_FIELD);
3516
3517   ClearField();
3518   DrawHeadline();
3519
3520   DrawTextSCentered(ystart, font_title, "Program Information:");
3521   ystart += ystep_title;
3522
3523   DrawTextSCentered(ystart, font_head,
3524                     "This game is Freeware!");
3525   ystart += ystep_head;
3526   DrawTextSCentered(ystart, font_head,
3527                     "If you like it, send e-mail to:");
3528   ystart += ystep_head;
3529   DrawTextSCentered(ystart, font_text,
3530                     setup.internal.program_email);
3531   ystart += ystep_para;
3532
3533   DrawTextSCentered(ystart, font_head,
3534                     "More information and levels:");
3535   ystart += ystep_head;
3536   DrawTextSCentered(ystart, font_text,
3537                     setup.internal.program_website);
3538   ystart += ystep_para;
3539
3540   DrawTextSCentered(ystart, font_head,
3541                     "If you have created new levels,");
3542   ystart += ystep_line;
3543   DrawTextSCentered(ystart, font_head,
3544                     "send them to me to include them!");
3545   ystart += ystep_head;
3546   DrawTextSCentered(ystart, font_head,
3547                     ":-)");
3548
3549   DrawTextSCentered(ybottom, font_foot,
3550                     "Press any key or button for info menu");
3551
3552   FadeIn(REDRAW_FIELD);
3553 }
3554
3555 void HandleInfoScreen_Program(int button)
3556 {
3557   if (button == MB_MENU_LEAVE)
3558   {
3559     PlaySound(SND_MENU_ITEM_SELECTING);
3560
3561     info_mode = INFO_MODE_MAIN;
3562     DrawInfoScreen();
3563
3564     return;
3565   }
3566   else if (button == MB_MENU_CHOICE)
3567   {
3568     PlaySound(SND_MENU_ITEM_SELECTING);
3569
3570     FadeMenuSoundsAndMusic();
3571
3572     info_mode = INFO_MODE_MAIN;
3573     DrawInfoScreen();
3574   }
3575   else
3576   {
3577     PlayMenuSoundIfLoop();
3578   }
3579 }
3580
3581 static void DrawInfoScreen_Version(void)
3582 {
3583   int font_title = MENU_INFO_FONT_TITLE;
3584   int font_head  = MENU_INFO_FONT_HEAD;
3585   int font_text  = MENU_INFO_FONT_TEXT;
3586   int font_foot  = MENU_INFO_FONT_FOOT;
3587   int spacing_title = menu.headline1_spacing_info[info_mode];
3588   int spacing_head  = menu.headline2_spacing_info[info_mode];
3589   int spacing_para  = menu.paragraph_spacing_info[info_mode];
3590   int spacing_line  = menu.line_spacing_info[info_mode];
3591   int xstep = getFontWidth(font_text);
3592   int ystep_title = getMenuTextStep(spacing_title, font_title);
3593   int ystep_head  = getMenuTextStep(spacing_head,  font_head);
3594   int ystep_para  = getMenuTextStep(spacing_para,  font_text);
3595   int ystep_line  = getMenuTextStep(spacing_line,  font_text);
3596   int ystart  = mSY - SY + MENU_SCREEN_INFO_YSTART1;
3597   int ybottom = mSY - SY + MENU_SCREEN_INFO_YBOTTOM;
3598   int xstart1 = mSX - SX + 2 * xstep;
3599   int xstart2 = mSX - SX + 18 * xstep;
3600   int xstart3 = mSX - SX + 28 * xstep;
3601   SDL_version sdl_version_compiled;
3602   const SDL_version *sdl_version_linked;
3603   int driver_name_len = 10;
3604 #if defined(TARGET_SDL2)
3605   SDL_version sdl_version_linked_ext;
3606   const char *driver_name = NULL;
3607 #else
3608   char driver_name[driver_name_len];
3609 #endif
3610
3611   SetMainBackgroundImageIfDefined(IMG_BACKGROUND_INFO_VERSION);
3612
3613   FadeOut(REDRAW_FIELD);
3614
3615   ClearField();
3616   DrawHeadline();
3617
3618   DrawTextSCentered(ystart, font_title, "Version Information:");
3619   ystart += ystep_title;
3620
3621   DrawTextF(xstart1, ystart, font_head, "Name");
3622   DrawTextF(xstart2, ystart, font_text, getProgramTitleString());
3623   ystart += ystep_line;
3624
3625   if (!strEqual(getProgramVersionString(), getProgramRealVersionString()))
3626   {
3627     DrawTextF(xstart1, ystart, font_head, "Version (fake)");
3628     DrawTextF(xstart2, ystart, font_text, getProgramVersionString());
3629     ystart += ystep_line;
3630
3631     DrawTextF(xstart1, ystart, font_head, "Version (real)");
3632     DrawTextF(xstart2, ystart, font_text, getProgramRealVersionString());
3633     ystart += ystep_line;
3634   }
3635   else
3636   {
3637     DrawTextF(xstart1, ystart, font_head, "Version");
3638     DrawTextF(xstart2, ystart, font_text, getProgramVersionString());
3639     ystart += ystep_line;
3640   }
3641
3642   DrawTextF(xstart1, ystart, font_head, "Platform");
3643   DrawTextF(xstart2, ystart, font_text, PLATFORM_STRING);
3644   ystart += ystep_line;
3645
3646   DrawTextF(xstart1, ystart, font_head, "Target");
3647   DrawTextF(xstart2, ystart, font_text, TARGET_STRING);
3648   ystart += ystep_line;
3649
3650   DrawTextF(xstart1, ystart, font_head, "Source date");
3651   DrawTextF(xstart2, ystart, font_text, getSourceDateString());
3652   ystart += ystep_para;
3653
3654   DrawTextF(xstart1, ystart, font_head, "Library");
3655   DrawTextF(xstart2, ystart, font_head, "compiled");
3656   DrawTextF(xstart3, ystart, font_head, "linked");
3657   ystart += ystep_head;
3658
3659   SDL_VERSION(&sdl_version_compiled);
3660 #if defined(TARGET_SDL2)
3661   SDL_GetVersion(&sdl_version_linked_ext);
3662   sdl_version_linked = &sdl_version_linked_ext;
3663 #else
3664   sdl_version_linked = SDL_Linked_Version();
3665 #endif
3666
3667   DrawTextF(xstart1, ystart, font_text, "SDL");
3668   DrawTextF(xstart2, ystart, font_text, "%d.%d.%d",
3669             sdl_version_compiled.major,
3670             sdl_version_compiled.minor,
3671             sdl_version_compiled.patch);
3672   DrawTextF(xstart3, ystart, font_text, "%d.%d.%d",
3673             sdl_version_linked->major,
3674             sdl_version_linked->minor,
3675             sdl_version_linked->patch);
3676   ystart += ystep_line;
3677
3678   SDL_IMAGE_VERSION(&sdl_version_compiled);
3679   sdl_version_linked = IMG_Linked_Version();
3680
3681   DrawTextF(xstart1, ystart, font_text, "SDL_image");
3682   DrawTextF(xstart2, ystart, font_text, "%d.%d.%d",
3683             sdl_version_compiled.major,
3684             sdl_version_compiled.minor,
3685             sdl_version_compiled.patch);
3686   DrawTextF(xstart3, ystart, font_text, "%d.%d.%d",
3687             sdl_version_linked->major,
3688             sdl_version_linked->minor,
3689             sdl_version_linked->patch);
3690   ystart += ystep_line;
3691
3692   SDL_MIXER_VERSION(&sdl_version_compiled);
3693   sdl_version_linked = Mix_Linked_Version();
3694
3695   DrawTextF(xstart1, ystart, font_text, "SDL_mixer");
3696   DrawTextF(xstart2, ystart, font_text, "%d.%d.%d",
3697             sdl_version_compiled.major,
3698             sdl_version_compiled.minor,
3699             sdl_version_compiled.patch);
3700   DrawTextF(xstart3, ystart, font_text, "%d.%d.%d",
3701             sdl_version_linked->major,
3702             sdl_version_linked->minor,
3703             sdl_version_linked->patch);
3704   ystart += ystep_line;
3705
3706   SDL_NET_VERSION(&sdl_version_compiled);
3707   sdl_version_linked = SDLNet_Linked_Version();
3708
3709   DrawTextF(xstart1, ystart, font_text, "SDL_net");
3710   DrawTextF(xstart2, ystart, font_text, "%d.%d.%d",
3711             sdl_version_compiled.major,
3712             sdl_version_compiled.minor,
3713             sdl_version_compiled.patch);
3714   DrawTextF(xstart3, ystart, font_text, "%d.%d.%d",
3715             sdl_version_linked->major,
3716             sdl_version_linked->minor,
3717             sdl_version_linked->patch);
3718   ystart += ystep_para;
3719
3720   DrawTextF(xstart1, ystart, font_head, "Driver");
3721   DrawTextF(xstart2, ystart, font_head, "Requested");
3722   DrawTextF(xstart3, ystart, font_head, "Used");
3723   ystart += ystep_head;
3724
3725 #if defined(TARGET_SDL2)
3726   driver_name = getStringCopyNStatic(SDL_GetVideoDriver(0), driver_name_len);
3727 #else
3728   SDL_VideoDriverName(driver_name, driver_name_len);
3729 #endif
3730
3731   DrawTextF(xstart1, ystart, font_text, "SDL_VideoDriver");
3732   DrawTextF(xstart2, ystart, font_text, "%s", setup.system.sdl_videodriver);
3733   DrawTextF(xstart3, ystart, font_text, "%s", driver_name);
3734   ystart += ystep_line;
3735
3736 #if defined(TARGET_SDL2)
3737   driver_name = getStringCopyNStatic(SDL_GetAudioDriver(0), driver_name_len);
3738 #else
3739   SDL_AudioDriverName(driver_name, driver_name_len);
3740 #endif
3741
3742   DrawTextF(xstart1, ystart, font_text, "SDL_AudioDriver");
3743   DrawTextF(xstart2, ystart, font_text, "%s", setup.system.sdl_audiodriver);
3744   DrawTextF(xstart3, ystart, font_text, "%s", driver_name);
3745
3746   DrawTextSCentered(ybottom, font_foot,
3747                     "Press any key or button for info menu");
3748
3749   FadeIn(REDRAW_FIELD);
3750 }
3751
3752 void HandleInfoScreen_Version(int button)
3753 {
3754   if (button == MB_MENU_LEAVE)
3755   {
3756     PlaySound(SND_MENU_ITEM_SELECTING);
3757
3758     info_mode = INFO_MODE_MAIN;
3759     DrawInfoScreen();
3760
3761     return;
3762   }
3763   else if (button == MB_MENU_CHOICE)
3764   {
3765     PlaySound(SND_MENU_ITEM_SELECTING);
3766
3767     FadeMenuSoundsAndMusic();
3768
3769     info_mode = INFO_MODE_MAIN;
3770     DrawInfoScreen();
3771   }
3772   else
3773   {
3774     PlayMenuSoundIfLoop();
3775   }
3776 }
3777
3778 static void DrawInfoScreen_LevelSet(void)
3779 {
3780   struct TitleMessageInfo *tmi = &readme;
3781   char *filename = getLevelSetInfoFilename();
3782   char *title = "Level Set Information:";
3783   int ystart  = mSY - SY + MENU_SCREEN_INFO_YSTART1;
3784   int ybottom = mSY - SY + MENU_SCREEN_INFO_YBOTTOM;
3785
3786   if (filename == NULL)
3787   {
3788     DrawInfoScreen_NotAvailable(title, "No information for this level set.");
3789
3790     return;
3791   }
3792
3793   SetMainBackgroundImageIfDefined(IMG_BACKGROUND_INFO_LEVELSET);
3794
3795   FadeOut(REDRAW_FIELD);
3796
3797   ClearField();
3798   DrawHeadline();
3799
3800   DrawTextSCentered(ystart, FONT_TEXT_1, title);
3801
3802   // if x position set to "-1", automatically determine by playfield width
3803   if (tmi->x == -1)
3804     tmi->x = SXSIZE / 2;
3805
3806   // if y position set to "-1", use static default value
3807   if (tmi->y == -1)
3808     tmi->y = 150;
3809
3810   // if width set to "-1", automatically determine by playfield width
3811   if (tmi->width == -1)
3812     tmi->width = SXSIZE - 2 * TILEX;
3813
3814   // if height set to "-1", automatically determine by playfield height
3815   if (tmi->height == -1)
3816     tmi->height = MENU_SCREEN_INFO_YBOTTOM - tmi->y - 10;
3817
3818   // if chars set to "-1", automatically determine by text and font width
3819   if (tmi->chars == -1)
3820     tmi->chars = tmi->width / getFontWidth(tmi->font);
3821   else
3822     tmi->width = tmi->chars * getFontWidth(tmi->font);
3823
3824   // if lines set to "-1", automatically determine by text and font height
3825   if (tmi->lines == -1)
3826     tmi->lines = tmi->height / getFontHeight(tmi->font);
3827   else
3828     tmi->height = tmi->lines * getFontHeight(tmi->font);
3829
3830   DrawTextFile(mSX + ALIGNED_TEXT_XPOS(tmi), mSY + ALIGNED_TEXT_YPOS(tmi),
3831                filename, tmi->font, tmi->chars, -1, tmi->lines, 0, -1,
3832                tmi->autowrap, tmi->centered, tmi->parse_comments);
3833
3834   DrawTextSCentered(ybottom, FONT_TEXT_4,
3835                     "Press any key or button for info menu");
3836
3837   FadeIn(REDRAW_FIELD);
3838 }
3839
3840 static void HandleInfoScreen_LevelSet(int button)
3841 {
3842   if (button == MB_MENU_LEAVE)
3843   {
3844     PlaySound(SND_MENU_ITEM_SELECTING);
3845
3846     info_mode = INFO_MODE_MAIN;
3847     DrawInfoScreen();
3848
3849     return;
3850   }
3851   else if (button == MB_MENU_CHOICE)
3852   {
3853     PlaySound(SND_MENU_ITEM_SELECTING);
3854
3855     FadeMenuSoundsAndMusic();
3856
3857     info_mode = INFO_MODE_MAIN;
3858     DrawInfoScreen();
3859   }
3860   else
3861   {
3862     PlayMenuSoundIfLoop();
3863   }
3864 }
3865
3866 static void DrawInfoScreen(void)
3867 {
3868   if (info_mode == INFO_MODE_TITLE)
3869     DrawInfoScreen_TitleScreen();
3870   else if (info_mode == INFO_MODE_ELEMENTS)
3871     DrawInfoScreen_Elements();
3872   else if (info_mode == INFO_MODE_MUSIC)
3873     DrawInfoScreen_Music();
3874   else if (info_mode == INFO_MODE_CREDITS)
3875     DrawInfoScreen_Credits();
3876   else if (info_mode == INFO_MODE_PROGRAM)
3877     DrawInfoScreen_Program();
3878   else if (info_mode == INFO_MODE_VERSION)
3879     DrawInfoScreen_Version();
3880   else if (info_mode == INFO_MODE_LEVELSET)
3881     DrawInfoScreen_LevelSet();
3882   else
3883     DrawInfoScreen_Main();
3884
3885   if (info_mode != INFO_MODE_MAIN &&
3886       info_mode != INFO_MODE_TITLE &&
3887       info_mode != INFO_MODE_MUSIC)
3888     PlayMenuSoundsAndMusic();
3889 }
3890
3891 void HandleInfoScreen(int mx, int my, int dx, int dy, int button)
3892 {
3893   if (info_mode == INFO_MODE_TITLE)
3894     HandleInfoScreen_TitleScreen(button);
3895   else if (info_mode == INFO_MODE_ELEMENTS)
3896     HandleInfoScreen_Elements(button);
3897   else if (info_mode == INFO_MODE_MUSIC)
3898     HandleInfoScreen_Music(button);
3899   else if (info_mode == INFO_MODE_CREDITS)
3900     HandleInfoScreen_Credits(button);
3901   else if (info_mode == INFO_MODE_PROGRAM)
3902     HandleInfoScreen_Program(button);
3903   else if (info_mode == INFO_MODE_VERSION)
3904     HandleInfoScreen_Version(button);
3905   else if (info_mode == INFO_MODE_LEVELSET)
3906     HandleInfoScreen_LevelSet(button);
3907   else
3908     HandleInfoScreen_Main(mx, my, dx, dy, button);
3909 }
3910
3911
3912 // ============================================================================
3913 // type name functions
3914 // ============================================================================
3915
3916 void HandleTypeName(int newxpos, Key key)
3917 {
3918   static char last_player_name[MAX_PLAYER_NAME_LEN + 1];
3919   struct MainControlInfo *mci = getMainControlInfo(MAIN_CONTROL_NAME);
3920   struct TextPosInfo *pos = mci->pos_input;
3921   int startx = mSX + ALIGNED_TEXT_XPOS(pos);
3922   int starty = mSY + ALIGNED_TEXT_YPOS(pos);
3923   static int xpos = 0;
3924   int font_nr = pos->font;
3925   int font_active_nr = FONT_ACTIVE(font_nr);
3926   int font_width = getFontWidth(font_active_nr);
3927   char key_char = getValidConfigValueChar(getCharFromKey(key));
3928   boolean is_valid_key_char = (key_char != 0 && (key_char != ' ' || xpos > 0));
3929   boolean is_active = TRUE;
3930
3931   DrawBackgroundForFont(startx,starty, pos->width, pos->height, font_active_nr);
3932
3933   if (newxpos)
3934   {
3935     strcpy(last_player_name, setup.player_name);
3936
3937     xpos = newxpos;
3938
3939     StartTextInput(startx, starty, pos->width, pos->height);
3940   }
3941   else if (is_valid_key_char && xpos < MAX_PLAYER_NAME_LEN)
3942   {
3943     setup.player_name[xpos] = key_char;
3944     setup.player_name[xpos + 1] = 0;
3945
3946     xpos++;
3947   }
3948   else if ((key == KSYM_Delete || key == KSYM_BackSpace) && xpos > 0)
3949   {
3950     xpos--;
3951
3952     setup.player_name[xpos] = 0;
3953   }
3954   else if (key == KSYM_Return && xpos > 0)
3955   {
3956     SaveSetup();
3957
3958     is_active = FALSE;
3959
3960     SetGameStatus(GAME_MODE_MAIN);
3961   }
3962   else if (key == KSYM_Escape)
3963   {
3964     strcpy(setup.player_name, last_player_name);
3965
3966     is_active = FALSE;
3967
3968     SetGameStatus(GAME_MODE_MAIN);
3969   }
3970
3971   if (is_active)
3972   {
3973     pos->width = (strlen(setup.player_name) + 1) * font_width;
3974     startx = mSX + ALIGNED_TEXT_XPOS(pos);
3975
3976     DrawText(startx, starty, setup.player_name, font_active_nr);
3977     DrawText(startx + xpos * font_width, starty, "_", font_active_nr);
3978   }
3979   else
3980   {
3981     pos->width = strlen(setup.player_name) * font_width;
3982     startx = mSX + ALIGNED_TEXT_XPOS(pos);
3983
3984     DrawText(startx, starty, setup.player_name, font_nr);
3985
3986     StopTextInput();
3987   }
3988 }
3989
3990
3991 // ============================================================================
3992 // tree menu functions
3993 // ============================================================================
3994
3995 static void DrawChooseTree(TreeInfo **ti_ptr)
3996 {
3997   int fade_mask = REDRAW_FIELD;
3998
3999   if (CheckIfGlobalBorderOrPlayfieldViewportHasChanged())
4000     fade_mask = REDRAW_ALL;
4001
4002   if (strEqual((*ti_ptr)->subdir, STRING_TOP_DIRECTORY))
4003   {
4004     SetGameStatus(GAME_MODE_MAIN);
4005
4006     DrawMainMenu();
4007
4008     return;
4009   }
4010
4011   UnmapAllGadgets();
4012
4013   FreeScreenGadgets();
4014   CreateScreenGadgets();
4015
4016   FadeOut(fade_mask);
4017
4018   // needed if different viewport properties defined for choosing level (set)
4019   ChangeViewportPropertiesIfNeeded();
4020
4021   if (game_status == GAME_MODE_LEVELNR)
4022     SetMainBackgroundImage(IMG_BACKGROUND_LEVELNR);
4023   else if (game_status == GAME_MODE_LEVELS)
4024     SetMainBackgroundImage(IMG_BACKGROUND_LEVELS);
4025
4026   ClearField();
4027
4028   OpenDoor(GetDoorState() | DOOR_NO_DELAY | DOOR_FORCE_REDRAW);
4029
4030   HandleChooseTree(0, 0, 0, 0, MB_MENU_INITIALIZE, ti_ptr);
4031   MapScreenTreeGadgets(*ti_ptr);
4032
4033   DrawMaskedBorder(fade_mask);
4034
4035   FadeIn(fade_mask);
4036 }
4037
4038 static void drawChooseTreeList(int first_entry, int num_page_entries,
4039                                TreeInfo *ti)
4040 {
4041   int i;
4042   char *title_string = NULL;
4043   int yoffset_sets = MENU_TITLE1_YPOS;
4044   int yoffset_setup = 16;
4045   int yoffset = (ti->type == TREE_TYPE_LEVEL_DIR ||
4046                  ti->type == TREE_TYPE_LEVEL_NR ? yoffset_sets : yoffset_setup);
4047
4048   title_string = ti->infotext;
4049
4050   DrawTextSCentered(mSY - SY + yoffset, FONT_TITLE_1, title_string);
4051
4052   clearMenuListArea();
4053
4054   for (i = 0; i < num_page_entries; i++)
4055   {
4056     TreeInfo *node, *node_first;
4057     int entry_pos = first_entry + i;
4058     int xpos = MENU_SCREEN_START_XPOS;
4059     int ypos = MENU_SCREEN_START_YPOS + i;
4060     int startx = mSX + xpos * 32;
4061     int starty = mSY + ypos * 32;
4062     int font_nr = FONT_TEXT_1;
4063     int font_xoffset = getFontBitmapInfo(font_nr)->draw_xoffset;
4064     int startx_text = startx + font_xoffset;
4065     int startx_scrollbar = mSX + SC_SCROLLBAR_XPOS + menu.scrollbar_xoffset;
4066     int text_size = startx_scrollbar - startx_text;
4067     int max_buffer_len = text_size / getFontWidth(font_nr);
4068     char buffer[max_buffer_len + 1];
4069
4070     node_first = getTreeInfoFirstGroupEntry(ti);
4071     node = getTreeInfoFromPos(node_first, entry_pos);
4072
4073     strncpy(buffer, node->name, max_buffer_len);
4074     buffer[max_buffer_len] = '\0';
4075
4076     DrawText(startx, starty, buffer, font_nr + node->color);
4077
4078     if (node->parent_link)
4079       initCursor(i, IMG_MENU_BUTTON_LEAVE_MENU);
4080     else if (node->level_group)
4081       initCursor(i, IMG_MENU_BUTTON_ENTER_MENU);
4082     else
4083       initCursor(i, IMG_MENU_BUTTON);
4084   }
4085
4086   redraw_mask |= REDRAW_FIELD;
4087 }
4088
4089 static void drawChooseTreeInfo(int entry_pos, TreeInfo *ti)
4090 {
4091   TreeInfo *node, *node_first;
4092   int x, last_redraw_mask = redraw_mask;
4093   int ypos = MENU_TITLE2_YPOS;
4094   int font_nr = FONT_TITLE_2;
4095
4096   if (ti->type == TREE_TYPE_LEVEL_NR)
4097     DrawTextFCentered(ypos, font_nr, leveldir_current->name);
4098
4099   if (ti->type != TREE_TYPE_LEVEL_DIR)
4100     return;
4101
4102   node_first = getTreeInfoFirstGroupEntry(ti);
4103   node = getTreeInfoFromPos(node_first, entry_pos);
4104
4105   DrawBackgroundForFont(SX, SY + ypos, SXSIZE, getFontHeight(font_nr), font_nr);
4106
4107   if (node->parent_link)
4108     DrawTextFCentered(ypos, font_nr, "leave \"%s\"",
4109                       node->node_parent->name);
4110   else if (node->level_group)
4111     DrawTextFCentered(ypos, font_nr, "enter \"%s\"",
4112                       node->name);
4113   else if (ti->type == TREE_TYPE_LEVEL_DIR)
4114     DrawTextFCentered(ypos, font_nr, "%3d %s (%s)",
4115                       node->levels, (node->levels > 1 ? "levels" : "level"),
4116                       node->class_desc);
4117
4118   // let BackToFront() redraw only what is needed
4119   redraw_mask = last_redraw_mask;
4120   for (x = 0; x < SCR_FIELDX; x++)
4121     MarkTileDirty(x, 1);
4122 }
4123
4124 static void HandleChooseTree(int mx, int my, int dx, int dy, int button,
4125                              TreeInfo **ti_ptr)
4126 {
4127   TreeInfo *ti = *ti_ptr;
4128   int x = 0;
4129   int y = ti->cl_cursor;
4130   int step = (button == 1 ? 1 : button == 2 ? 5 : 10);
4131   int num_entries = numTreeInfoInGroup(ti);
4132   int num_page_entries;
4133   boolean position_set_by_scrollbar = (dx == 999);
4134
4135   if (num_entries <= NUM_MENU_ENTRIES_ON_SCREEN)
4136     num_page_entries = num_entries;
4137   else
4138     num_page_entries = NUM_MENU_ENTRIES_ON_SCREEN;
4139
4140   if (button == MB_MENU_INITIALIZE)
4141   {
4142     int num_entries = numTreeInfoInGroup(ti);
4143     int entry_pos = posTreeInfo(ti);
4144
4145     if (ti->cl_first == -1)
4146     {
4147       // only on initialization
4148       ti->cl_first = MAX(0, entry_pos - num_page_entries + 1);
4149       ti->cl_cursor = entry_pos - ti->cl_first;
4150     }
4151     else if (ti->cl_cursor >= num_page_entries ||
4152              (num_entries > num_page_entries &&
4153               num_entries - ti->cl_first < num_page_entries))
4154     {
4155       // only after change of list size (by custom graphic configuration)
4156       ti->cl_first = MAX(0, entry_pos - num_page_entries + 1);
4157       ti->cl_cursor = entry_pos - ti->cl_first;
4158     }
4159
4160     if (position_set_by_scrollbar)
4161       ti->cl_first = dy;
4162     else
4163       AdjustChooseTreeScrollbar(SCREEN_CTRL_ID_SCROLL_VERTICAL,
4164                                 ti->cl_first, ti);
4165
4166     drawChooseTreeList(ti->cl_first, num_page_entries, ti);
4167     drawChooseTreeInfo(ti->cl_first + ti->cl_cursor, ti);
4168     drawChooseTreeCursor(ti->cl_cursor, TRUE);
4169
4170     return;
4171   }
4172   else if (button == MB_MENU_LEAVE)
4173   {
4174     FadeSetLeaveMenu();
4175
4176     PlaySound(SND_MENU_ITEM_SELECTING);
4177
4178     if (ti->node_parent)
4179     {
4180       *ti_ptr = ti->node_parent;
4181       DrawChooseTree(ti_ptr);
4182     }
4183     else if (game_status == GAME_MODE_SETUP)
4184     {
4185       if (setup_mode == SETUP_MODE_CHOOSE_GAME_SPEED ||
4186           setup_mode == SETUP_MODE_CHOOSE_SCROLL_DELAY ||
4187           setup_mode == SETUP_MODE_CHOOSE_SNAPSHOT_MODE)
4188         execSetupGame();
4189       else if (setup_mode == SETUP_MODE_CHOOSE_WINDOW_SIZE ||
4190                setup_mode == SETUP_MODE_CHOOSE_SCALING_TYPE ||
4191                setup_mode == SETUP_MODE_CHOOSE_RENDERING ||
4192                setup_mode == SETUP_MODE_CHOOSE_VSYNC)
4193         execSetupGraphics();
4194       else if (setup_mode == SETUP_MODE_CHOOSE_VOLUME_SIMPLE ||
4195                setup_mode == SETUP_MODE_CHOOSE_VOLUME_LOOPS ||
4196                setup_mode == SETUP_MODE_CHOOSE_VOLUME_MUSIC)
4197         execSetupSound();
4198       else if (setup_mode == SETUP_MODE_CHOOSE_TOUCH_CONTROL ||
4199                setup_mode == SETUP_MODE_CHOOSE_MOVE_DISTANCE ||
4200                setup_mode == SETUP_MODE_CHOOSE_DROP_DISTANCE ||
4201                setup_mode == SETUP_MODE_CHOOSE_TRANSPARENCY ||
4202                setup_mode == SETUP_MODE_CHOOSE_GRID_XSIZE_0 ||
4203                setup_mode == SETUP_MODE_CHOOSE_GRID_YSIZE_0 ||
4204                setup_mode == SETUP_MODE_CHOOSE_GRID_XSIZE_1 ||
4205                setup_mode == SETUP_MODE_CHOOSE_GRID_YSIZE_1)
4206         execSetupTouch();
4207       else
4208         execSetupArtwork();
4209     }
4210     else
4211     {
4212       if (game_status == GAME_MODE_LEVELNR)
4213       {
4214         int new_level_nr = atoi(level_number_current->identifier);
4215
4216         HandleMainMenu_SelectLevel(0, 0, new_level_nr);
4217       }
4218
4219       SetGameStatus(GAME_MODE_MAIN);
4220
4221       DrawMainMenu();
4222     }
4223
4224     return;
4225   }
4226
4227   if (mx || my)         // mouse input
4228   {
4229     x = (mx - mSX) / 32;
4230     y = (my - mSY) / 32 - MENU_SCREEN_START_YPOS;
4231   }
4232   else if (dx || dy)    // keyboard or scrollbar/scrollbutton input
4233   {
4234     // move cursor instead of scrolling when already at start/end of list
4235     if (dy == -1 * SCROLL_LINE && ti->cl_first == 0)
4236       dy = -1;
4237     else if (dy == +1 * SCROLL_LINE &&
4238              ti->cl_first + num_page_entries == num_entries)
4239       dy = 1;
4240
4241     // handle scrolling screen one line or page
4242     if (ti->cl_cursor + dy < 0 ||
4243         ti->cl_cursor + dy > num_page_entries - 1)
4244     {
4245       boolean redraw = FALSE;
4246
4247       if (ABS(dy) == SCROLL_PAGE)
4248         step = num_page_entries - 1;
4249
4250       if (dy < 0 && ti->cl_first > 0)
4251       {
4252         // scroll page/line up
4253
4254         ti->cl_first -= step;
4255         if (ti->cl_first < 0)
4256           ti->cl_first = 0;
4257
4258         redraw = TRUE;
4259       }
4260       else if (dy > 0 && ti->cl_first + num_page_entries < num_entries)
4261       {
4262         // scroll page/line down
4263
4264         ti->cl_first += step;
4265         if (ti->cl_first + num_page_entries > num_entries)
4266           ti->cl_first = MAX(0, num_entries - num_page_entries);
4267
4268         redraw = TRUE;
4269       }
4270
4271       if (redraw)
4272       {
4273         drawChooseTreeList(ti->cl_first, num_page_entries, ti);
4274         drawChooseTreeInfo(ti->cl_first + ti->cl_cursor, ti);
4275         drawChooseTreeCursor(ti->cl_cursor, TRUE);
4276
4277         AdjustChooseTreeScrollbar(SCREEN_CTRL_ID_SCROLL_VERTICAL,
4278                                   ti->cl_first, ti);
4279       }
4280
4281       return;
4282     }
4283
4284     // handle moving cursor one line
4285     y = ti->cl_cursor + dy;
4286   }
4287
4288   if (dx == 1)
4289   {
4290     TreeInfo *node_first, *node_cursor;
4291     int entry_pos = ti->cl_first + y;
4292
4293     node_first = getTreeInfoFirstGroupEntry(ti);
4294     node_cursor = getTreeInfoFromPos(node_first, entry_pos);
4295
4296     if (node_cursor->node_group)
4297     {
4298       FadeSetEnterMenu();
4299
4300       PlaySound(SND_MENU_ITEM_SELECTING);
4301
4302       node_cursor->cl_first = ti->cl_first;
4303       node_cursor->cl_cursor = ti->cl_cursor;
4304       *ti_ptr = node_cursor->node_group;
4305       DrawChooseTree(ti_ptr);
4306
4307       return;
4308     }
4309   }
4310   else if (dx == -1 && ti->node_parent)
4311   {
4312     FadeSetLeaveMenu();
4313
4314     PlaySound(SND_MENU_ITEM_SELECTING);
4315
4316     *ti_ptr = ti->node_parent;
4317     DrawChooseTree(ti_ptr);
4318
4319     return;
4320   }
4321
4322   if (!anyScrollbarGadgetActive() &&
4323       IN_VIS_MENU(x, y) &&
4324       mx < screen_gadget[SCREEN_CTRL_ID_SCROLL_VERTICAL]->x &&
4325       y >= 0 && y < num_page_entries)
4326   {
4327     if (button)
4328     {
4329       if (y != ti->cl_cursor)
4330       {
4331         PlaySound(SND_MENU_ITEM_ACTIVATING);
4332
4333         drawChooseTreeCursor(ti->cl_cursor, FALSE);
4334         drawChooseTreeCursor(y, TRUE);
4335         drawChooseTreeInfo(ti->cl_first + y, ti);
4336
4337         ti->cl_cursor = y;
4338       }
4339       else if (dx < 0)
4340       {
4341         if (game_status == GAME_MODE_SETUP)
4342         {
4343           if (setup_mode == SETUP_MODE_CHOOSE_GAME_SPEED ||
4344               setup_mode == SETUP_MODE_CHOOSE_SCROLL_DELAY ||
4345               setup_mode == SETUP_MODE_CHOOSE_SNAPSHOT_MODE)
4346             execSetupGame();
4347           else if (setup_mode == SETUP_MODE_CHOOSE_WINDOW_SIZE ||
4348                    setup_mode == SETUP_MODE_CHOOSE_SCALING_TYPE ||
4349                    setup_mode == SETUP_MODE_CHOOSE_RENDERING ||
4350                    setup_mode == SETUP_MODE_CHOOSE_VSYNC)
4351             execSetupGraphics();
4352           else if (setup_mode == SETUP_MODE_CHOOSE_VOLUME_SIMPLE ||
4353                    setup_mode == SETUP_MODE_CHOOSE_VOLUME_LOOPS ||
4354                    setup_mode == SETUP_MODE_CHOOSE_VOLUME_MUSIC)
4355             execSetupSound();
4356           else if (setup_mode == SETUP_MODE_CHOOSE_TOUCH_CONTROL ||
4357                    setup_mode == SETUP_MODE_CHOOSE_MOVE_DISTANCE ||
4358                    setup_mode == SETUP_MODE_CHOOSE_DROP_DISTANCE ||
4359                    setup_mode == SETUP_MODE_CHOOSE_TRANSPARENCY ||
4360                    setup_mode == SETUP_MODE_CHOOSE_GRID_XSIZE_0 ||
4361                    setup_mode == SETUP_MODE_CHOOSE_GRID_YSIZE_0 ||
4362                    setup_mode == SETUP_MODE_CHOOSE_GRID_XSIZE_1 ||
4363                    setup_mode == SETUP_MODE_CHOOSE_GRID_YSIZE_1)
4364             execSetupTouch();
4365           else
4366             execSetupArtwork();
4367         }
4368       }
4369     }
4370     else
4371     {
4372       TreeInfo *node_first, *node_cursor;
4373       int entry_pos = ti->cl_first + y;
4374
4375       PlaySound(SND_MENU_ITEM_SELECTING);
4376
4377       node_first = getTreeInfoFirstGroupEntry(ti);
4378       node_cursor = getTreeInfoFromPos(node_first, entry_pos);
4379
4380       if (node_cursor->node_group)
4381       {
4382         FadeSetEnterMenu();
4383
4384         node_cursor->cl_first = ti->cl_first;
4385         node_cursor->cl_cursor = ti->cl_cursor;
4386         *ti_ptr = node_cursor->node_group;
4387         DrawChooseTree(ti_ptr);
4388       }
4389       else if (node_cursor->parent_link)
4390       {
4391         FadeSetLeaveMenu();
4392
4393         *ti_ptr = node_cursor->node_parent;
4394         DrawChooseTree(ti_ptr);
4395       }
4396       else
4397       {
4398         FadeSetEnterMenu();
4399
4400         node_cursor->cl_first = ti->cl_first;
4401         node_cursor->cl_cursor = ti->cl_cursor;
4402         *ti_ptr = node_cursor;
4403
4404         if (ti->type == TREE_TYPE_LEVEL_DIR)
4405         {
4406           LoadLevelSetup_SeriesInfo();
4407
4408           SaveLevelSetup_LastSeries();
4409           SaveLevelSetup_SeriesInfo();
4410           TapeErase();
4411         }
4412
4413         if (game_status == GAME_MODE_SETUP)
4414         {
4415           if (setup_mode == SETUP_MODE_CHOOSE_GAME_SPEED ||
4416               setup_mode == SETUP_MODE_CHOOSE_SCROLL_DELAY ||
4417               setup_mode == SETUP_MODE_CHOOSE_SNAPSHOT_MODE)
4418             execSetupGame();
4419           else if (setup_mode == SETUP_MODE_CHOOSE_WINDOW_SIZE ||
4420                    setup_mode == SETUP_MODE_CHOOSE_SCALING_TYPE ||
4421                    setup_mode == SETUP_MODE_CHOOSE_RENDERING ||
4422                    setup_mode == SETUP_MODE_CHOOSE_VSYNC)
4423             execSetupGraphics();
4424           else if (setup_mode == SETUP_MODE_CHOOSE_VOLUME_SIMPLE ||
4425                    setup_mode == SETUP_MODE_CHOOSE_VOLUME_LOOPS ||
4426                    setup_mode == SETUP_MODE_CHOOSE_VOLUME_MUSIC)
4427             execSetupSound();
4428           else if (setup_mode == SETUP_MODE_CHOOSE_TOUCH_CONTROL ||
4429                    setup_mode == SETUP_MODE_CHOOSE_MOVE_DISTANCE ||
4430                    setup_mode == SETUP_MODE_CHOOSE_DROP_DISTANCE ||
4431                    setup_mode == SETUP_MODE_CHOOSE_TRANSPARENCY ||
4432                    setup_mode == SETUP_MODE_CHOOSE_GRID_XSIZE_0 ||
4433                    setup_mode == SETUP_MODE_CHOOSE_GRID_YSIZE_0 ||
4434                    setup_mode == SETUP_MODE_CHOOSE_GRID_XSIZE_1 ||
4435                    setup_mode == SETUP_MODE_CHOOSE_GRID_YSIZE_1)
4436             execSetupTouch();
4437           else
4438             execSetupArtwork();
4439         }
4440         else
4441         {
4442           if (game_status == GAME_MODE_LEVELNR)
4443           {
4444             int new_level_nr = atoi(level_number_current->identifier);
4445
4446             HandleMainMenu_SelectLevel(0, 0, new_level_nr);
4447           }
4448
4449           SetGameStatus(GAME_MODE_MAIN);
4450
4451           DrawMainMenu();
4452         }
4453       }
4454     }
4455   }
4456 }
4457
4458 void DrawChooseLevelSet(void)
4459 {
4460   FadeMenuSoundsAndMusic();
4461
4462   DrawChooseTree(&leveldir_current);
4463
4464   PlayMenuSoundsAndMusic();
4465 }
4466
4467 void HandleChooseLevelSet(int mx, int my, int dx, int dy, int button)
4468 {
4469   HandleChooseTree(mx, my, dx, dy, button, &leveldir_current);
4470 }
4471
4472 void DrawChooseLevelNr(void)
4473 {
4474   int i;
4475
4476   FadeMenuSoundsAndMusic();
4477
4478   if (level_number != NULL)
4479   {
4480     freeTreeInfo(level_number);
4481
4482     level_number = NULL;
4483   }
4484
4485   for (i = leveldir_current->first_level; i <= leveldir_current->last_level;i++)
4486   {
4487     TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_LEVEL_NR);
4488     char identifier[32], name[32];
4489     int value = i;
4490
4491     // temporarily load level info to get level name
4492     LoadLevelInfoOnly(i);
4493
4494     ti->node_top = &level_number;
4495     ti->sort_priority = 10000 + value;
4496     ti->color = (level.no_level_file ? FC_BLUE :
4497                  LevelStats_getSolved(i) ? FC_GREEN :
4498                  LevelStats_getPlayed(i) ? FC_YELLOW : FC_RED);
4499
4500     snprintf(identifier, sizeof(identifier), "%d", value);
4501     snprintf(name, sizeof(name), "%03d: %s", value,
4502              (level.no_level_file ? "(no file)" : level.name));
4503
4504     setString(&ti->identifier, identifier);
4505     setString(&ti->name, name);
4506     setString(&ti->name_sorting, name);
4507
4508     pushTreeInfo(&level_number, ti);
4509   }
4510
4511   // sort level number values to start with lowest level number
4512   sortTreeInfo(&level_number);
4513
4514   // set current level number to current level number
4515   level_number_current =
4516     getTreeInfoFromIdentifier(level_number, i_to_a(level_nr));
4517
4518   // if that also fails, set current level number to first available level
4519   if (level_number_current == NULL)
4520     level_number_current = level_number;
4521
4522   DrawChooseTree(&level_number_current);
4523
4524   PlayMenuSoundsAndMusic();
4525 }
4526
4527 void HandleChooseLevelNr(int mx, int my, int dx, int dy, int button)
4528 {
4529   HandleChooseTree(mx, my, dx, dy, button, &level_number_current);
4530 }
4531
4532 void DrawHallOfFame(int level_nr, int highlight_position)
4533 {
4534   int fade_mask = REDRAW_FIELD;
4535
4536   if (CheckIfGlobalBorderOrPlayfieldViewportHasChanged())
4537     fade_mask = REDRAW_ALL;
4538
4539   UnmapAllGadgets();
4540   FadeMenuSoundsAndMusic();
4541
4542   // (this is needed when called from GameEnd() after winning a game)
4543   KeyboardAutoRepeatOn();
4544
4545   // (this is needed when called from GameEnd() after winning a game)
4546   SetDrawDeactivationMask(REDRAW_NONE);
4547   SetDrawBackgroundMask(REDRAW_FIELD);
4548
4549   if (highlight_position < 0)
4550     LoadScore(level_nr);
4551   else
4552     SetAnimStatus(GAME_MODE_PSEUDO_SCORESNEW);
4553
4554   FadeSetEnterScreen();
4555
4556   FadeOut(fade_mask);
4557
4558   // needed if different viewport properties defined for scores
4559   ChangeViewportPropertiesIfNeeded();
4560
4561   PlayMenuSoundsAndMusic();
4562
4563   OpenDoor(GetDoorState() | DOOR_NO_DELAY | DOOR_FORCE_REDRAW);
4564
4565   HandleHallOfFame(level_nr, highlight_position, 0, 0, MB_MENU_INITIALIZE);
4566
4567   DrawMaskedBorder(fade_mask);
4568
4569   FadeIn(fade_mask);
4570 }
4571
4572 static void drawHallOfFameList(int level_nr, int first_entry,
4573                                int highlight_position)
4574 {
4575   int i, j;
4576
4577   SetMainBackgroundImage(IMG_BACKGROUND_SCORES);
4578   ClearField();
4579
4580   DrawTextSCentered(MENU_TITLE1_YPOS, FONT_TITLE_1, "Hall Of Fame");
4581   DrawTextFCentered(MENU_TITLE2_YPOS, FONT_TITLE_2,
4582                     "HighScores of Level %d", level_nr);
4583
4584   for (i = 0; i < NUM_MENU_ENTRIES_ON_SCREEN; i++)
4585   {
4586     int entry = first_entry + i;
4587     boolean active = (entry == highlight_position);
4588     int font_nr1 = (active ? FONT_TEXT_1_ACTIVE : FONT_TEXT_1);
4589     int font_nr2 = (active ? FONT_TEXT_2_ACTIVE : FONT_TEXT_2);
4590     int font_nr3 = (active ? FONT_TEXT_3_ACTIVE : FONT_TEXT_3);
4591     int font_nr4 = (active ? FONT_TEXT_4_ACTIVE : FONT_TEXT_4);
4592     int dxoff = getFontDrawOffsetX(font_nr1);
4593     int dx1 = 3 * getFontWidth(font_nr1);
4594     int dx2 = dx1 + getFontWidth(font_nr1);
4595     int dx3 = SXSIZE - 2 * (mSX - SX + dxoff) - 5 * getFontWidth(font_nr4);
4596     int num_dots = (dx3 - dx2) / getFontWidth(font_nr3);
4597     int sy = mSY + 64 + i * 32;
4598
4599     DrawText(mSX, sy, int2str(entry + 1, 3), font_nr1);
4600     DrawText(mSX + dx1, sy, ".", font_nr1);
4601
4602     for (j = 0; j < num_dots; j++)
4603       DrawText(mSX + dx2 + j * getFontWidth(font_nr3), sy, ".", font_nr3);
4604
4605     if (!strEqual(highscore[entry].Name, EMPTY_PLAYER_NAME))
4606       DrawText(mSX + dx2, sy, highscore[entry].Name, font_nr2);
4607
4608     DrawText(mSX + dx3, sy, int2str(highscore[entry].Score, 5), font_nr4);
4609   }
4610
4611   redraw_mask |= REDRAW_FIELD;
4612 }
4613
4614 void HandleHallOfFame(int mx, int my, int dx, int dy, int button)
4615 {
4616   static int level_nr = 0;
4617   static int first_entry = 0;
4618   static int highlight_position = 0;
4619   int step = (button == 1 ? 1 : button == 2 ? 5 : 10);
4620
4621   if (button == MB_MENU_INITIALIZE)
4622   {
4623     level_nr = mx;
4624     first_entry = 0;
4625     highlight_position = my;
4626
4627     drawHallOfFameList(level_nr, first_entry, highlight_position);
4628
4629     return;
4630   }
4631
4632   if (ABS(dy) == SCROLL_PAGE)           // handle scrolling one page
4633     step = NUM_MENU_ENTRIES_ON_SCREEN - 1;
4634
4635   if (dy < 0)
4636   {
4637     if (first_entry > 0)
4638     {
4639       first_entry -= step;
4640       if (first_entry < 0)
4641         first_entry = 0;
4642
4643       drawHallOfFameList(level_nr, first_entry, highlight_position);
4644     }
4645   }
4646   else if (dy > 0)
4647   {
4648     if (first_entry + NUM_MENU_ENTRIES_ON_SCREEN < MAX_SCORE_ENTRIES)
4649     {
4650       first_entry += step;
4651       if (first_entry + NUM_MENU_ENTRIES_ON_SCREEN > MAX_SCORE_ENTRIES)
4652         first_entry = MAX(0, MAX_SCORE_ENTRIES - NUM_MENU_ENTRIES_ON_SCREEN);
4653
4654       drawHallOfFameList(level_nr, first_entry, highlight_position);
4655     }
4656   }
4657   else if (button == MB_MENU_LEAVE || button == MB_MENU_CHOICE)
4658   {
4659     PlaySound(SND_MENU_ITEM_SELECTING);
4660
4661     FadeSound(SND_BACKGROUND_SCORES);
4662
4663     if (game_status_last_screen == GAME_MODE_PLAYING &&
4664         setup.auto_play_next_level && setup.increment_levels &&
4665         level_nr < leveldir_current->last_level &&
4666         !network_playing)
4667     {
4668       StartGameActions(network.enabled, setup.autorecord, level.random_seed);
4669     }
4670     else
4671     {
4672       SetGameStatus(GAME_MODE_MAIN);
4673
4674       DrawMainMenu();
4675     }
4676   }
4677
4678   if (game_status == GAME_MODE_SCORES)
4679     PlayMenuSoundIfLoop();
4680 }
4681
4682
4683 // ============================================================================
4684 // setup screen functions
4685 // ============================================================================
4686
4687 static struct TokenInfo *setup_info;
4688 static int num_setup_info;      // number of setup entries shown on screen
4689 static int max_setup_info;      // total number of setup entries in list
4690
4691 static char *window_size_text;
4692 static char *scaling_type_text;
4693 static char *rendering_mode_text;
4694 static char *vsync_mode_text;
4695 static char *scroll_delay_text;
4696 static char *snapshot_mode_text;
4697 static char *game_speed_text;
4698 static char *network_server_text;
4699 static char *graphics_set_name;
4700 static char *sounds_set_name;
4701 static char *music_set_name;
4702 static char *volume_simple_text;
4703 static char *volume_loops_text;
4704 static char *volume_music_text;
4705 static char *touch_controls_text;
4706 static char *move_distance_text;
4707 static char *drop_distance_text;
4708 static char *transparency_text;
4709 static char *grid_size_text[2][2];
4710
4711 static void execSetupMain(void)
4712 {
4713   setup_mode = SETUP_MODE_MAIN;
4714
4715   DrawSetupScreen();
4716 }
4717
4718 static void execSetupGame_setGameSpeeds(boolean update_value)
4719 {
4720   if (setup.game_speed_extended)
4721   {
4722     game_speeds_list = game_speeds_list_extended;
4723     game_speeds      = game_speeds_extended;
4724   }
4725   else
4726   {
4727     game_speeds_list = game_speeds_list_normal;
4728     game_speeds      = game_speeds_normal;
4729   }
4730
4731   if (game_speeds == NULL)
4732   {
4733     int i;
4734
4735     for (i = 0; game_speeds_list[i].value != -1; i++)
4736     {
4737       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
4738       char identifier[32], name[32];
4739       int value = game_speeds_list[i].value;
4740       char *text = game_speeds_list[i].text;
4741
4742       ti->node_top = &game_speeds;
4743       ti->sort_priority = 10000 - value;
4744
4745       sprintf(identifier, "%d", value);
4746       sprintf(name, "%s", text);
4747
4748       setString(&ti->identifier, identifier);
4749       setString(&ti->name, name);
4750       setString(&ti->name_sorting, name);
4751       setString(&ti->infotext, STR_SETUP_CHOOSE_GAME_SPEED);
4752
4753       pushTreeInfo(&game_speeds, ti);
4754     }
4755
4756     // sort game speed values to start with slowest game speed
4757     sortTreeInfo(&game_speeds);
4758
4759     update_value = TRUE;
4760   }
4761
4762   if (update_value)
4763   {
4764     // set current game speed to configured game speed value
4765     game_speed_current =
4766       getTreeInfoFromIdentifier(game_speeds, i_to_a(setup.game_frame_delay));
4767
4768     // if that fails, set current game speed to reliable default value
4769     if (game_speed_current == NULL)
4770       game_speed_current =
4771         getTreeInfoFromIdentifier(game_speeds, i_to_a(GAME_FRAME_DELAY));
4772
4773     // if that also fails, set current game speed to first available speed
4774     if (game_speed_current == NULL)
4775       game_speed_current = game_speeds;
4776
4777     if (setup.game_speed_extended)
4778       game_speeds_extended = game_speeds;
4779     else
4780       game_speeds_normal = game_speeds;
4781   }
4782
4783   setup.game_frame_delay = atoi(game_speed_current->identifier);
4784
4785   // needed for displaying game speed text instead of identifier
4786   game_speed_text = game_speed_current->name;
4787 }
4788
4789 static void execSetupGame_setScrollDelays(void)
4790 {
4791   if (scroll_delays == NULL)
4792   {
4793     int i;
4794
4795     for (i = 0; scroll_delays_list[i].value != -1; i++)
4796     {
4797       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
4798       char identifier[32], name[32];
4799       int value = scroll_delays_list[i].value;
4800       char *text = scroll_delays_list[i].text;
4801
4802       ti->node_top = &scroll_delays;
4803       ti->sort_priority = value;
4804
4805       sprintf(identifier, "%d", value);
4806       sprintf(name, "%s", text);
4807
4808       setString(&ti->identifier, identifier);
4809       setString(&ti->name, name);
4810       setString(&ti->name_sorting, name);
4811       setString(&ti->infotext, STR_SETUP_CHOOSE_SCROLL_DELAY);
4812
4813       pushTreeInfo(&scroll_delays, ti);
4814     }
4815
4816     // sort scroll delay values to start with lowest scroll delay value
4817     sortTreeInfo(&scroll_delays);
4818
4819     // set current scroll delay value to configured scroll delay value
4820     scroll_delay_current =
4821       getTreeInfoFromIdentifier(scroll_delays,i_to_a(setup.scroll_delay_value));
4822
4823     // if that fails, set current scroll delay to reliable default value
4824     if (scroll_delay_current == NULL)
4825       scroll_delay_current =
4826         getTreeInfoFromIdentifier(scroll_delays, i_to_a(STD_SCROLL_DELAY));
4827
4828     // if that also fails, set current scroll delay to first available value
4829     if (scroll_delay_current == NULL)
4830       scroll_delay_current = scroll_delays;
4831   }
4832
4833   setup.scroll_delay_value = atoi(scroll_delay_current->identifier);
4834
4835   // needed for displaying scroll delay text instead of identifier
4836   scroll_delay_text = scroll_delay_current->name;
4837 }
4838
4839 static void execSetupGame_setSnapshotModes(void)
4840 {
4841   if (snapshot_modes == NULL)
4842   {
4843     int i;
4844
4845     for (i = 0; snapshot_modes_list[i].value != NULL; i++)
4846     {
4847       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
4848       char identifier[32], name[32];
4849       char *value = snapshot_modes_list[i].value;
4850       char *text = snapshot_modes_list[i].text;
4851
4852       ti->node_top = &snapshot_modes;
4853       ti->sort_priority = i;
4854
4855       sprintf(identifier, "%s", value);
4856       sprintf(name, "%s", text);
4857
4858       setString(&ti->identifier, identifier);
4859       setString(&ti->name, name);
4860       setString(&ti->name_sorting, name);
4861       setString(&ti->infotext, STR_SETUP_CHOOSE_SNAPSHOT_MODE);
4862
4863       pushTreeInfo(&snapshot_modes, ti);
4864     }
4865
4866     // sort snapshot mode values to start with lowest snapshot mode value
4867     sortTreeInfo(&snapshot_modes);
4868
4869     // set current snapshot mode value to configured snapshot mode value
4870     snapshot_mode_current =
4871       getTreeInfoFromIdentifier(snapshot_modes, setup.engine_snapshot_mode);
4872
4873     // if that fails, set current snapshot mode to reliable default value
4874     if (snapshot_mode_current == NULL)
4875       snapshot_mode_current =
4876         getTreeInfoFromIdentifier(snapshot_modes, STR_SNAPSHOT_MODE_DEFAULT);
4877
4878     // if that also fails, set current snapshot mode to first available value
4879     if (snapshot_mode_current == NULL)
4880       snapshot_mode_current = snapshot_modes;
4881   }
4882
4883   setup.engine_snapshot_mode = snapshot_mode_current->identifier;
4884
4885   // needed for displaying snapshot mode text instead of identifier
4886   snapshot_mode_text = snapshot_mode_current->name;
4887 }
4888
4889 static void execSetupGame_setNetworkServerText(void)
4890 {
4891   if (strEqual(setup.network_server_hostname, STR_NETWORK_AUTO_DETECT))
4892   {
4893     strcpy(network_server_hostname, STR_NETWORK_AUTO_DETECT_SETUP);
4894   }
4895   else
4896   {
4897     strncpy(network_server_hostname, setup.network_server_hostname,
4898             MAX_SETUP_TEXT_INPUT_LEN);
4899     network_server_hostname[MAX_SETUP_TEXT_INPUT_LEN] = '\0';
4900   }
4901
4902   // needed for displaying network server text instead of identifier
4903   network_server_text = network_server_hostname;
4904 }
4905
4906 static void execSetupGame(void)
4907 {
4908   boolean check_vsync_mode = (setup_mode == SETUP_MODE_CHOOSE_GAME_SPEED);
4909
4910   execSetupGame_setGameSpeeds(FALSE);
4911   execSetupGame_setScrollDelays();
4912   execSetupGame_setSnapshotModes();
4913
4914   execSetupGame_setNetworkServerText();
4915
4916   setup_mode = SETUP_MODE_GAME;
4917
4918   DrawSetupScreen();
4919
4920   // check if vsync needs to be disabled for this game speed to work
4921   if (check_vsync_mode)
4922     DisableVsyncIfNeeded();
4923 }
4924
4925 static void execSetupChooseGameSpeed(void)
4926 {
4927   setup_mode = SETUP_MODE_CHOOSE_GAME_SPEED;
4928
4929   DrawSetupScreen();
4930 }
4931
4932 static void execSetupChooseScrollDelay(void)
4933 {
4934   setup_mode = SETUP_MODE_CHOOSE_SCROLL_DELAY;
4935
4936   DrawSetupScreen();
4937 }
4938
4939 static void execSetupChooseSnapshotMode(void)
4940 {
4941   setup_mode = SETUP_MODE_CHOOSE_SNAPSHOT_MODE;
4942
4943   DrawSetupScreen();
4944 }
4945
4946 static void execSetupEditor(void)
4947 {
4948   setup_mode = SETUP_MODE_EDITOR;
4949
4950   DrawSetupScreen();
4951 }
4952
4953 static void execSetupGraphics_setWindowSizes(boolean update_list)
4954 {
4955   if (window_sizes != NULL && update_list)
4956   {
4957     freeTreeInfo(window_sizes);
4958
4959     window_sizes = NULL;
4960   }
4961
4962   if (window_sizes == NULL)
4963   {
4964     boolean current_window_size_found = FALSE;
4965     int i;
4966
4967     for (i = 0; window_sizes_list[i].value != -1; i++)
4968     {
4969       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
4970       char identifier[32], name[32];
4971       int value = window_sizes_list[i].value;
4972       char *text = window_sizes_list[i].text;
4973
4974       ti->node_top = &window_sizes;
4975       ti->sort_priority = value;
4976
4977       sprintf(identifier, "%d", value);
4978       sprintf(name, "%s", text);
4979
4980       setString(&ti->identifier, identifier);
4981       setString(&ti->name, name);
4982       setString(&ti->name_sorting, name);
4983       setString(&ti->infotext, STR_SETUP_CHOOSE_WINDOW_SIZE);
4984
4985       pushTreeInfo(&window_sizes, ti);
4986
4987       if (value == setup.window_scaling_percent)
4988         current_window_size_found = TRUE;
4989     }
4990
4991     if (!current_window_size_found)
4992     {
4993       // add entry for non-preset window scaling value
4994
4995       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
4996       char identifier[32], name[32];
4997       int value = setup.window_scaling_percent;
4998
4999       ti->node_top = &window_sizes;
5000       ti->sort_priority = value;
5001
5002       sprintf(identifier, "%d", value);
5003       sprintf(name, "%d %% (Current)", value);
5004
5005       setString(&ti->identifier, identifier);
5006       setString(&ti->name, name);
5007       setString(&ti->name_sorting, name);
5008       setString(&ti->infotext, STR_SETUP_CHOOSE_WINDOW_SIZE);
5009
5010       pushTreeInfo(&window_sizes, ti);
5011     }
5012
5013     // sort window size values to start with lowest window size value
5014     sortTreeInfo(&window_sizes);
5015
5016     // set current window size value to configured window size value
5017     window_size_current =
5018       getTreeInfoFromIdentifier(window_sizes,
5019                                 i_to_a(setup.window_scaling_percent));
5020
5021     // if that fails, set current window size to reliable default value
5022     if (window_size_current == NULL)
5023       window_size_current =
5024         getTreeInfoFromIdentifier(window_sizes,
5025                                   i_to_a(STD_WINDOW_SCALING_PERCENT));
5026
5027     // if that also fails, set current window size to first available value
5028     if (window_size_current == NULL)
5029       window_size_current = window_sizes;
5030   }
5031
5032   setup.window_scaling_percent = atoi(window_size_current->identifier);
5033
5034   // needed for displaying window size text instead of identifier
5035   window_size_text = window_size_current->name;
5036 }
5037
5038 static void execSetupGraphics_setScalingTypes(void)
5039 {
5040   if (scaling_types == NULL)
5041   {
5042     int i;
5043
5044     for (i = 0; scaling_types_list[i].value != NULL; i++)
5045     {
5046       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
5047       char identifier[32], name[32];
5048       char *value = scaling_types_list[i].value;
5049       char *text = scaling_types_list[i].text;
5050
5051       ti->node_top = &scaling_types;
5052       ti->sort_priority = i;
5053
5054       sprintf(identifier, "%s", value);
5055       sprintf(name, "%s", text);
5056
5057       setString(&ti->identifier, identifier);
5058       setString(&ti->name, name);
5059       setString(&ti->name_sorting, name);
5060       setString(&ti->infotext, STR_SETUP_CHOOSE_SCALING_TYPE);
5061
5062       pushTreeInfo(&scaling_types, ti);
5063     }
5064
5065     // sort scaling type values to start with lowest scaling type value
5066     sortTreeInfo(&scaling_types);
5067
5068     // set current scaling type value to configured scaling type value
5069     scaling_type_current =
5070       getTreeInfoFromIdentifier(scaling_types, setup.window_scaling_quality);
5071
5072     // if that fails, set current scaling type to reliable default value
5073     if (scaling_type_current == NULL)
5074       scaling_type_current =
5075         getTreeInfoFromIdentifier(scaling_types, SCALING_QUALITY_DEFAULT);
5076
5077     // if that also fails, set current scaling type to first available value
5078     if (scaling_type_current == NULL)
5079       scaling_type_current = scaling_types;
5080   }
5081
5082   setup.window_scaling_quality = scaling_type_current->identifier;
5083
5084   // needed for displaying scaling type text instead of identifier
5085   scaling_type_text = scaling_type_current->name;
5086 }
5087
5088 static void execSetupGraphics_setRenderingModes(void)
5089 {
5090   if (rendering_modes == NULL)
5091   {
5092     int i;
5093
5094     for (i = 0; rendering_modes_list[i].value != NULL; i++)
5095     {
5096       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
5097       char identifier[32], name[32];
5098       char *value = rendering_modes_list[i].value;
5099       char *text = rendering_modes_list[i].text;
5100
5101       ti->node_top = &rendering_modes;
5102       ti->sort_priority = i;
5103
5104       sprintf(identifier, "%s", value);
5105       sprintf(name, "%s", text);
5106
5107       setString(&ti->identifier, identifier);
5108       setString(&ti->name, name);
5109       setString(&ti->name_sorting, name);
5110       setString(&ti->infotext, STR_SETUP_CHOOSE_RENDERING);
5111
5112       pushTreeInfo(&rendering_modes, ti);
5113     }
5114
5115     // sort rendering mode values to start with lowest rendering mode value
5116     sortTreeInfo(&rendering_modes);
5117
5118     // set current rendering mode value to configured rendering mode value
5119     rendering_mode_current =
5120       getTreeInfoFromIdentifier(rendering_modes, setup.screen_rendering_mode);
5121
5122     // if that fails, set current rendering mode to reliable default value
5123     if (rendering_mode_current == NULL)
5124       rendering_mode_current =
5125         getTreeInfoFromIdentifier(rendering_modes,
5126                                   STR_SPECIAL_RENDERING_DEFAULT);
5127
5128     // if that also fails, set current rendering mode to first available one
5129     if (rendering_mode_current == NULL)
5130       rendering_mode_current = rendering_modes;
5131   }
5132
5133   setup.screen_rendering_mode = rendering_mode_current->identifier;
5134
5135   // needed for displaying rendering mode text instead of identifier
5136   rendering_mode_text = rendering_mode_current->name;
5137 }
5138
5139 static void execSetupGraphics_setVsyncModes(boolean update_value)
5140 {
5141   if (vsync_modes == NULL)
5142   {
5143     int i;
5144
5145     for (i = 0; vsync_modes_list[i].value != NULL; i++)
5146     {
5147       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
5148       char identifier[32], name[32];
5149       char *value = vsync_modes_list[i].value;
5150       char *text = vsync_modes_list[i].text;
5151
5152       ti->node_top = &vsync_modes;
5153       ti->sort_priority = i;
5154
5155       sprintf(identifier, "%s", value);
5156       sprintf(name, "%s", text);
5157
5158       setString(&ti->identifier, identifier);
5159       setString(&ti->name, name);
5160       setString(&ti->name_sorting, name);
5161       setString(&ti->infotext, STR_SETUP_CHOOSE_VSYNC);
5162
5163       pushTreeInfo(&vsync_modes, ti);
5164     }
5165
5166     // sort vsync mode values to start with lowest vsync mode value
5167     sortTreeInfo(&vsync_modes);
5168
5169     update_value = TRUE;
5170   }
5171
5172   if (update_value)
5173   {
5174     // set current vsync mode value to configured vsync mode value
5175     vsync_mode_current =
5176       getTreeInfoFromIdentifier(vsync_modes, setup.vsync_mode);
5177
5178     // if that fails, set current vsync mode to reliable default value
5179     if (vsync_mode_current == NULL)
5180       vsync_mode_current =
5181         getTreeInfoFromIdentifier(vsync_modes, STR_VSYNC_MODE_DEFAULT);
5182
5183     // if that also fails, set current vsync mode to first available one
5184     if (vsync_mode_current == NULL)
5185       vsync_mode_current = vsync_modes;
5186   }
5187
5188   setup.vsync_mode = vsync_mode_current->identifier;
5189
5190   // needed for displaying vsync mode text instead of identifier
5191   vsync_mode_text = vsync_mode_current->name;
5192 }
5193
5194 static void execSetupGraphics(void)
5195 {
5196   boolean check_game_speed = (setup_mode == SETUP_MODE_CHOOSE_VSYNC);
5197
5198   // update "setup.window_scaling_percent" from list selection
5199   // (in this case, window scaling was changed on setup screen)
5200   if (setup_mode == SETUP_MODE_CHOOSE_WINDOW_SIZE)
5201     execSetupGraphics_setWindowSizes(FALSE);
5202
5203   // update list selection from "setup.window_scaling_percent"
5204   // (window scaling may have changed by resizing the window)
5205   execSetupGraphics_setWindowSizes(TRUE);
5206
5207   execSetupGraphics_setScalingTypes();
5208   execSetupGraphics_setRenderingModes();
5209   execSetupGraphics_setVsyncModes(FALSE);
5210
5211   setup_mode = SETUP_MODE_GRAPHICS;
5212
5213   DrawSetupScreen();
5214
5215   // check if game speed is high enough for 60 Hz vsync to work
5216   if (check_game_speed)
5217     ModifyGameSpeedIfNeeded();
5218
5219 #if defined(TARGET_SDL2)
5220   // window scaling may have changed at this point
5221   ToggleFullscreenOrChangeWindowScalingIfNeeded();
5222
5223   // window scaling quality may have changed at this point
5224   if (!strEqual(setup.window_scaling_quality, video.window_scaling_quality))
5225     SDLSetWindowScalingQuality(setup.window_scaling_quality);
5226
5227   // screen rendering mode may have changed at this point
5228   SDLSetScreenRenderingMode(setup.screen_rendering_mode);
5229
5230   // screen vsync mode may have changed at this point
5231   SDLSetScreenVsyncMode(setup.vsync_mode);
5232 #endif
5233 }
5234
5235 static void execSetupChooseWindowSize(void)
5236 {
5237   setup_mode = SETUP_MODE_CHOOSE_WINDOW_SIZE;
5238
5239   DrawSetupScreen();
5240 }
5241
5242 static void execSetupChooseScalingType(void)
5243 {
5244   setup_mode = SETUP_MODE_CHOOSE_SCALING_TYPE;
5245
5246   DrawSetupScreen();
5247 }
5248
5249 static void execSetupChooseRenderingMode(void)
5250 {
5251   setup_mode = SETUP_MODE_CHOOSE_RENDERING;
5252
5253   DrawSetupScreen();
5254 }
5255
5256 static void execSetupChooseVsyncMode(void)
5257 {
5258   setup_mode = SETUP_MODE_CHOOSE_VSYNC;
5259
5260   DrawSetupScreen();
5261 }
5262
5263 static void execSetupChooseVolumeSimple(void)
5264 {
5265   setup_mode = SETUP_MODE_CHOOSE_VOLUME_SIMPLE;
5266
5267   DrawSetupScreen();
5268 }
5269
5270 static void execSetupChooseVolumeLoops(void)
5271 {
5272   setup_mode = SETUP_MODE_CHOOSE_VOLUME_LOOPS;
5273
5274   DrawSetupScreen();
5275 }
5276
5277 static void execSetupChooseVolumeMusic(void)
5278 {
5279   setup_mode = SETUP_MODE_CHOOSE_VOLUME_MUSIC;
5280
5281   DrawSetupScreen();
5282 }
5283
5284 static void execSetupSound(void)
5285 {
5286   if (volumes_simple == NULL)
5287   {
5288     boolean current_volume_simple_found = FALSE;
5289     int i;
5290
5291     for (i = 0; volumes_list[i].value != -1; i++)
5292     {
5293       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
5294       char identifier[32], name[32];
5295       int value = volumes_list[i].value;
5296       char *text = volumes_list[i].text;
5297
5298       ti->node_top = &volumes_simple;
5299       ti->sort_priority = value;
5300
5301       sprintf(identifier, "%d", value);
5302       sprintf(name, "%s", text);
5303
5304       setString(&ti->identifier, identifier);
5305       setString(&ti->name, name);
5306       setString(&ti->name_sorting, name);
5307       setString(&ti->infotext, STR_SETUP_CHOOSE_VOLUME_SIMPLE);
5308
5309       pushTreeInfo(&volumes_simple, ti);
5310
5311       if (value == setup.volume_simple)
5312         current_volume_simple_found = TRUE;
5313     }
5314
5315     if (!current_volume_simple_found)
5316     {
5317       // add entry for non-preset volume value
5318
5319       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
5320       char identifier[32], name[32];
5321       int value = setup.volume_simple;
5322
5323       ti->node_top = &volumes_simple;
5324       ti->sort_priority = value;
5325
5326       sprintf(identifier, "%d", value);
5327       sprintf(name, "%d %% (Current)", value);
5328
5329       setString(&ti->identifier, identifier);
5330       setString(&ti->name, name);
5331       setString(&ti->name_sorting, name);
5332       setString(&ti->infotext, STR_SETUP_CHOOSE_VOLUME_SIMPLE);
5333
5334       pushTreeInfo(&volumes_simple, ti);
5335     }
5336
5337     // sort volume values to start with lowest volume value
5338     sortTreeInfo(&volumes_simple);
5339
5340     // set current volume value to configured volume value
5341     volume_simple_current =
5342       getTreeInfoFromIdentifier(volumes_simple,i_to_a(setup.volume_simple));
5343
5344     // if that fails, set current volume to reliable default value
5345     if (volume_simple_current == NULL)
5346       volume_simple_current =
5347         getTreeInfoFromIdentifier(volumes_simple, i_to_a(100));
5348
5349     // if that also fails, set current volume to first available value
5350     if (volume_simple_current == NULL)
5351       volume_simple_current = volumes_simple;
5352   }
5353
5354   if (volumes_loops == NULL)
5355   {
5356     boolean current_volume_loops_found = FALSE;
5357     int i;
5358
5359     for (i = 0; volumes_list[i].value != -1; i++)
5360     {
5361       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
5362       char identifier[32], name[32];
5363       int value = volumes_list[i].value;
5364       char *text = volumes_list[i].text;
5365
5366       ti->node_top = &volumes_loops;
5367       ti->sort_priority = value;
5368
5369       sprintf(identifier, "%d", value);
5370       sprintf(name, "%s", text);
5371
5372       setString(&ti->identifier, identifier);
5373       setString(&ti->name, name);
5374       setString(&ti->name_sorting, name);
5375       setString(&ti->infotext, STR_SETUP_CHOOSE_VOLUME_LOOPS);
5376
5377       pushTreeInfo(&volumes_loops, ti);
5378
5379       if (value == setup.volume_loops)
5380         current_volume_loops_found = TRUE;
5381     }
5382
5383     if (!current_volume_loops_found)
5384     {
5385       // add entry for non-preset volume value
5386
5387       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
5388       char identifier[32], name[32];
5389       int value = setup.volume_loops;
5390
5391       ti->node_top = &volumes_loops;
5392       ti->sort_priority = value;
5393
5394       sprintf(identifier, "%d", value);
5395       sprintf(name, "%d %% (Current)", value);
5396
5397       setString(&ti->identifier, identifier);
5398       setString(&ti->name, name);
5399       setString(&ti->name_sorting, name);
5400       setString(&ti->infotext, STR_SETUP_CHOOSE_VOLUME_LOOPS);
5401
5402       pushTreeInfo(&volumes_loops, ti);
5403     }
5404
5405     // sort volume values to start with lowest volume value
5406     sortTreeInfo(&volumes_loops);
5407
5408     // set current volume value to configured volume value
5409     volume_loops_current =
5410       getTreeInfoFromIdentifier(volumes_loops,i_to_a(setup.volume_loops));
5411
5412     // if that fails, set current volume to reliable default value
5413     if (volume_loops_current == NULL)
5414       volume_loops_current =
5415         getTreeInfoFromIdentifier(volumes_loops, i_to_a(100));
5416
5417     // if that also fails, set current volume to first available value
5418     if (volume_loops_current == NULL)
5419       volume_loops_current = volumes_loops;
5420   }
5421
5422   if (volumes_music == NULL)
5423   {
5424     boolean current_volume_music_found = FALSE;
5425     int i;
5426
5427     for (i = 0; volumes_list[i].value != -1; i++)
5428     {
5429       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
5430       char identifier[32], name[32];
5431       int value = volumes_list[i].value;
5432       char *text = volumes_list[i].text;
5433
5434       ti->node_top = &volumes_music;
5435       ti->sort_priority = value;
5436
5437       sprintf(identifier, "%d", value);
5438       sprintf(name, "%s", text);
5439
5440       setString(&ti->identifier, identifier);
5441       setString(&ti->name, name);
5442       setString(&ti->name_sorting, name);
5443       setString(&ti->infotext, STR_SETUP_CHOOSE_VOLUME_MUSIC);
5444
5445       pushTreeInfo(&volumes_music, ti);
5446
5447       if (value == setup.volume_music)
5448         current_volume_music_found = TRUE;
5449     }
5450
5451     if (!current_volume_music_found)
5452     {
5453       // add entry for non-preset volume value
5454
5455       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
5456       char identifier[32], name[32];
5457       int value = setup.volume_music;
5458
5459       ti->node_top = &volumes_music;
5460       ti->sort_priority = value;
5461
5462       sprintf(identifier, "%d", value);
5463       sprintf(name, "%d %% (Current)", value);
5464
5465       setString(&ti->identifier, identifier);
5466       setString(&ti->name, name);
5467       setString(&ti->name_sorting, name);
5468       setString(&ti->infotext, STR_SETUP_CHOOSE_VOLUME_MUSIC);
5469
5470       pushTreeInfo(&volumes_music, ti);
5471     }
5472
5473     // sort volume values to start with lowest volume value
5474     sortTreeInfo(&volumes_music);
5475
5476     // set current volume value to configured volume value
5477     volume_music_current =
5478       getTreeInfoFromIdentifier(volumes_music,i_to_a(setup.volume_music));
5479
5480     // if that fails, set current volume to reliable default value
5481     if (volume_music_current == NULL)
5482       volume_music_current =
5483         getTreeInfoFromIdentifier(volumes_music, i_to_a(100));
5484
5485     // if that also fails, set current volume to first available value
5486     if (volume_music_current == NULL)
5487       volume_music_current = volumes_music;
5488   }
5489
5490   setup.volume_simple = atoi(volume_simple_current->identifier);
5491   setup.volume_loops  = atoi(volume_loops_current->identifier);
5492   setup.volume_music  = atoi(volume_music_current->identifier);
5493
5494   // needed for displaying volume text instead of identifier
5495   volume_simple_text = volume_simple_current->name;
5496   volume_loops_text = volume_loops_current->name;
5497   volume_music_text = volume_music_current->name;
5498
5499   setup_mode = SETUP_MODE_SOUND;
5500
5501   DrawSetupScreen();
5502 }
5503
5504 static void execSetupChooseTouchControls(void)
5505 {
5506   setup_mode = SETUP_MODE_CHOOSE_TOUCH_CONTROL;
5507
5508   DrawSetupScreen();
5509 }
5510
5511 static void execSetupChooseMoveDistance(void)
5512 {
5513   setup_mode = SETUP_MODE_CHOOSE_MOVE_DISTANCE;
5514
5515   DrawSetupScreen();
5516 }
5517
5518 static void execSetupChooseDropDistance(void)
5519 {
5520   setup_mode = SETUP_MODE_CHOOSE_DROP_DISTANCE;
5521
5522   DrawSetupScreen();
5523 }
5524
5525 static void execSetupChooseTransparency(void)
5526 {
5527   setup_mode = SETUP_MODE_CHOOSE_TRANSPARENCY;
5528
5529   DrawSetupScreen();
5530 }
5531
5532 static void execSetupChooseGridXSize_0(void)
5533 {
5534   setup_mode = SETUP_MODE_CHOOSE_GRID_XSIZE_0;
5535
5536   DrawSetupScreen();
5537 }
5538
5539 static void execSetupChooseGridYSize_0(void)
5540 {
5541   setup_mode = SETUP_MODE_CHOOSE_GRID_YSIZE_0;
5542
5543   DrawSetupScreen();
5544 }
5545
5546 static void execSetupChooseGridXSize_1(void)
5547 {
5548   setup_mode = SETUP_MODE_CHOOSE_GRID_XSIZE_1;
5549
5550   DrawSetupScreen();
5551 }
5552
5553 static void execSetupChooseGridYSize_1(void)
5554 {
5555   setup_mode = SETUP_MODE_CHOOSE_GRID_YSIZE_1;
5556
5557   DrawSetupScreen();
5558 }
5559
5560 static void execSetupConfigureVirtualButtons(void)
5561 {
5562   setup_mode = SETUP_MODE_CONFIG_VIRT_BUTTONS;
5563
5564   ConfigureVirtualButtons();
5565
5566   setup_mode = SETUP_MODE_TOUCH;
5567
5568   DrawSetupScreen();
5569 }
5570
5571 static void execSetupTouch(void)
5572 {
5573   int i, j, k;
5574
5575   if (touch_controls == NULL)
5576   {
5577     for (i = 0; touch_controls_list[i].value != NULL; i++)
5578     {
5579       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
5580       char identifier[32], name[32];
5581       char *value = touch_controls_list[i].value;
5582       char *text = touch_controls_list[i].text;
5583
5584       ti->node_top = &touch_controls;
5585       ti->sort_priority = i;
5586
5587       sprintf(identifier, "%s", value);
5588       sprintf(name, "%s", text);
5589
5590       setString(&ti->identifier, identifier);
5591       setString(&ti->name, name);
5592       setString(&ti->name_sorting, name);
5593       setString(&ti->infotext, STR_SETUP_CHOOSE_TOUCH_CONTROL);
5594
5595       pushTreeInfo(&touch_controls, ti);
5596     }
5597
5598     // sort touch control values to start with lowest touch control value
5599     sortTreeInfo(&touch_controls);
5600
5601     // set current touch control value to configured touch control value
5602     touch_control_current =
5603       getTreeInfoFromIdentifier(touch_controls, setup.touch.control_type);
5604
5605     // if that fails, set current touch control to reliable default value
5606     if (touch_control_current == NULL)
5607       touch_control_current =
5608         getTreeInfoFromIdentifier(touch_controls, TOUCH_CONTROL_DEFAULT);
5609
5610     // if that also fails, set current touch control to first available value
5611     if (touch_control_current == NULL)
5612       touch_control_current = touch_controls;
5613   }
5614
5615   if (move_distances == NULL)
5616   {
5617     for (i = 0; distances_list[i].value != -1; i++)
5618     {
5619       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
5620       char identifier[32], name[32];
5621       int value = distances_list[i].value;
5622       char *text = distances_list[i].text;
5623
5624       ti->node_top = &move_distances;
5625       ti->sort_priority = value;
5626
5627       sprintf(identifier, "%d", value);
5628       sprintf(name, "%s", text);
5629
5630       setString(&ti->identifier, identifier);
5631       setString(&ti->name, name);
5632       setString(&ti->name_sorting, name);
5633       setString(&ti->infotext, STR_SETUP_CHOOSE_MOVE_DISTANCE);
5634
5635       pushTreeInfo(&move_distances, ti);
5636     }
5637
5638     // sort distance values to start with lowest distance value
5639     sortTreeInfo(&move_distances);
5640
5641     // set current distance value to configured distance value
5642     move_distance_current =
5643       getTreeInfoFromIdentifier(move_distances,
5644                                 i_to_a(setup.touch.move_distance));
5645
5646     // if that fails, set current distance to reliable default value
5647     if (move_distance_current == NULL)
5648       move_distance_current =
5649         getTreeInfoFromIdentifier(move_distances,
5650                                   i_to_a(TOUCH_MOVE_DISTANCE_DEFAULT));
5651
5652     // if that also fails, set current distance to first available value
5653     if (move_distance_current == NULL)
5654       move_distance_current = move_distances;
5655   }
5656
5657   if (drop_distances == NULL)
5658   {
5659     for (i = 0; distances_list[i].value != -1; i++)
5660     {
5661       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
5662       char identifier[32], name[32];
5663       int value = distances_list[i].value;
5664       char *text = distances_list[i].text;
5665
5666       ti->node_top = &drop_distances;
5667       ti->sort_priority = value;
5668
5669       sprintf(identifier, "%d", value);
5670       sprintf(name, "%s", text);
5671
5672       setString(&ti->identifier, identifier);
5673       setString(&ti->name, name);
5674       setString(&ti->name_sorting, name);
5675       setString(&ti->infotext, STR_SETUP_CHOOSE_DROP_DISTANCE);
5676
5677       pushTreeInfo(&drop_distances, ti);
5678     }
5679
5680     // sort distance values to start with lowest distance value
5681     sortTreeInfo(&drop_distances);
5682
5683     // set current distance value to configured distance value
5684     drop_distance_current =
5685       getTreeInfoFromIdentifier(drop_distances,
5686                                 i_to_a(setup.touch.drop_distance));
5687
5688     // if that fails, set current distance to reliable default value
5689     if (drop_distance_current == NULL)
5690       drop_distance_current =
5691         getTreeInfoFromIdentifier(drop_distances,
5692                                   i_to_a(TOUCH_DROP_DISTANCE_DEFAULT));
5693
5694     // if that also fails, set current distance to first available value
5695     if (drop_distance_current == NULL)
5696       drop_distance_current = drop_distances;
5697   }
5698
5699   if (transparencies == NULL)
5700   {
5701     for (i = 0; transparencies_list[i].value != -1; i++)
5702     {
5703       TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
5704       char identifier[32], name[32];
5705       int value = transparencies_list[i].value;
5706       char *text = transparencies_list[i].text;
5707
5708       ti->node_top = &transparencies;
5709       ti->sort_priority = value;
5710
5711       sprintf(identifier, "%d", value);
5712       sprintf(name, "%s", text);
5713
5714       setString(&ti->identifier, identifier);
5715       setString(&ti->name, name);
5716       setString(&ti->name_sorting, name);
5717       setString(&ti->infotext, STR_SETUP_CHOOSE_TRANSPARENCY);
5718
5719       pushTreeInfo(&transparencies, ti);
5720     }
5721
5722     // sort transparency values to start with lowest transparency value
5723     sortTreeInfo(&transparencies);
5724
5725     // set current transparency value to configured transparency value
5726     transparency_current =
5727       getTreeInfoFromIdentifier(transparencies,
5728                                 i_to_a(setup.touch.transparency));
5729
5730     // if that fails, set current transparency to reliable default value
5731     if (transparency_current == NULL)
5732       transparency_current =
5733         getTreeInfoFromIdentifier(transparencies,
5734                                   i_to_a(TOUCH_TRANSPARENCY_DEFAULT));
5735
5736     // if that also fails, set current transparency to first available value
5737     if (transparency_current == NULL)
5738       transparency_current = transparencies;
5739   }
5740
5741   for (i = 0; i < 2; i++)
5742   {
5743     for (j = 0; j < 2; j++)
5744     {
5745       if (grid_sizes[i][j] == NULL)
5746       {
5747         for (k = 0; grid_sizes_list[k].value != -1; k++)
5748         {
5749           TreeInfo *ti = newTreeInfo_setDefaults(TREE_TYPE_UNDEFINED);
5750           char identifier[32], name[32];
5751           int value = grid_sizes_list[k].value;
5752           char *text = grid_sizes_list[k].text;
5753
5754           ti->node_top = &grid_sizes[i][j];
5755           ti->sort_priority = value;
5756
5757           sprintf(identifier, "%d", value);
5758           sprintf(name, "%s", text);
5759
5760           setString(&ti->identifier, identifier);
5761           setString(&ti->name, name);
5762           setString(&ti->name_sorting, name);
5763           setString(&ti->infotext,
5764                     (i == 0 ?
5765                      (j == 0 ?
5766                       STR_SETUP_CHOOSE_GRID_XSIZE_0 :
5767                       STR_SETUP_CHOOSE_GRID_YSIZE_0) :
5768                      (j == 0 ?
5769                       STR_SETUP_CHOOSE_GRID_XSIZE_1 :
5770                       STR_SETUP_CHOOSE_GRID_YSIZE_1)));
5771
5772           pushTreeInfo(&grid_sizes[i][j], ti);
5773         }
5774
5775         // sort grid size values to start with lowest grid size value
5776         sortTreeInfo(&grid_sizes[i][j]);
5777
5778         // set current grid size value to configured grid size value
5779         grid_size_current[i][j] =
5780           getTreeInfoFromIdentifier(grid_sizes[i][j],
5781                                     i_to_a(j == 0 ?
5782                                            setup.touch.grid_xsize[i] :
5783                                            setup.touch.grid_ysize[i]));
5784
5785         // if that fails, set current grid size to reliable default value
5786         if (grid_size_current[i][j] == NULL)
5787           grid_size_current[i][j] =
5788             getTreeInfoFromIdentifier(grid_sizes[i][j],
5789                                       i_to_a(j == 0 ?
5790                                              DEFAULT_GRID_XSIZE(i) :
5791                                              DEFAULT_GRID_YSIZE(i)));
5792
5793         // if that also fails, set current grid size to first available value
5794         if (grid_size_current[i][j] == NULL)
5795           grid_size_current[i][j] = grid_sizes[i][j];
5796       }
5797     }
5798   }
5799
5800   setup.touch.control_type = touch_control_current->identifier;
5801   setup.touch.move_distance = atoi(move_distance_current->identifier);
5802   setup.touch.drop_distance = atoi(drop_distance_current->identifier);
5803   setup.touch.transparency = atoi(transparency_current->identifier);
5804
5805   for (i = 0; i < 2; i++)
5806   {
5807     setup.touch.grid_xsize[i] = atoi(grid_size_current[i][0]->identifier);
5808     setup.touch.grid_ysize[i] = atoi(grid_size_current[i][1]->identifier);
5809
5810     if (i == GRID_ACTIVE_NR())
5811     {
5812       overlay.grid_xsize = setup.touch.grid_xsize[i];
5813       overlay.grid_ysize = setup.touch.grid_ysize[i];
5814     }
5815   }
5816
5817   // needed for displaying value text instead of identifier
5818   touch_controls_text = touch_control_current->name;
5819   move_distance_text = move_distance_current->name;
5820   drop_distance_text = drop_distance_current->name;
5821   transparency_text = transparency_current->name;
5822
5823   for (i = 0; i < 2; i++)
5824     for (j = 0; j < 2; j++)
5825       grid_size_text[i][j] = grid_size_current[i][j]->name;
5826
5827   setup_mode = SETUP_MODE_TOUCH;
5828
5829   DrawSetupScreen();
5830 }
5831
5832 static void execSetupArtwork(void)
5833 {
5834 #if 0
5835   printf("::: '%s', '%s', '%s'\n",
5836          artwork.gfx_current->subdir,
5837          artwork.gfx_current->fullpath,
5838          artwork.gfx_current->basepath);
5839 #endif
5840
5841   setup.graphics_set = artwork.gfx_current->identifier;
5842   setup.sounds_set = artwork.snd_current->identifier;
5843   setup.music_set = artwork.mus_current->identifier;
5844
5845   // needed if last screen (setup choice) changed graphics, sounds or music
5846   ReloadCustomArtwork(0);
5847
5848   // needed for displaying artwork name instead of artwork identifier
5849   graphics_set_name = artwork.gfx_current->name;
5850   sounds_set_name = artwork.snd_current->name;
5851   music_set_name = artwork.mus_current->name;
5852
5853   setup_mode = SETUP_MODE_ARTWORK;
5854
5855   DrawSetupScreen();
5856 }
5857
5858 static void execSetupChooseGraphics(void)
5859 {
5860   setup_mode = SETUP_MODE_CHOOSE_GRAPHICS;
5861
5862   DrawSetupScreen();
5863 }
5864
5865 static void execSetupChooseSounds(void)
5866 {
5867   setup_mode = SETUP_MODE_CHOOSE_SOUNDS;
5868
5869   DrawSetupScreen();
5870 }
5871
5872 static void execSetupChooseMusic(void)
5873 {
5874   setup_mode = SETUP_MODE_CHOOSE_MUSIC;
5875
5876   DrawSetupScreen();
5877 }
5878
5879 static void execSetupInput(void)
5880 {
5881   setup_mode = SETUP_MODE_INPUT;
5882
5883   DrawSetupScreen();
5884 }
5885
5886 static void execSetupShortcuts(void)
5887 {
5888   setup_mode = SETUP_MODE_SHORTCUTS;
5889
5890   DrawSetupScreen();
5891 }
5892
5893 static void execSetupShortcuts1(void)
5894 {
5895   setup_mode = SETUP_MODE_SHORTCUTS_1;
5896
5897   DrawSetupScreen();
5898 }
5899
5900 static void execSetupShortcuts2(void)
5901 {
5902   setup_mode = SETUP_MODE_SHORTCUTS_2;
5903
5904   DrawSetupScreen();
5905 }
5906
5907 static void execSetupShortcuts3(void)
5908 {
5909   setup_mode = SETUP_MODE_SHORTCUTS_3;
5910
5911   DrawSetupScreen();
5912 }
5913
5914 static void execSetupShortcuts4(void)
5915 {
5916   setup_mode = SETUP_MODE_SHORTCUTS_4;
5917
5918   DrawSetupScreen();
5919 }
5920
5921 static void execSetupShortcuts5(void)
5922 {
5923   setup_mode = SETUP_MODE_SHORTCUTS_5;
5924
5925   DrawSetupScreen();
5926 }
5927
5928 static void execExitSetup(void)
5929 {
5930   SetGameStatus(GAME_MODE_MAIN);
5931
5932   DrawMainMenu();
5933 }
5934
5935 static void execSaveAndExitSetup(void)
5936 {
5937   SaveSetup();
5938   execExitSetup();
5939 }
5940
5941 static void execGadgetNetworkServer(void)
5942 {
5943   int gadget_id = SCREEN_CTRL_ID_NETWORK_SERVER;
5944   struct GadgetInfo *gi = screen_gadget[gadget_id];
5945
5946   if (strEqual(setup.network_server_hostname, STR_NETWORK_AUTO_DETECT))
5947     network_server_hostname[0] = '\0';
5948
5949   ModifyGadget(gi, GDI_TEXT_VALUE, network_server_hostname, GDI_END);
5950
5951   MapGadget(gi);
5952
5953   ClickOnGadget(gi, MB_LEFTBUTTON);
5954 }
5955
5956 static void ToggleNetworkModeIfNeeded(void)
5957 {
5958   int font_title = FONT_TITLE_1;
5959   int font_foot = FC_BLUE;
5960   int ystart  = mSY - SY + 16;
5961   int ybottom = mSY - SY + SYSIZE - 20;
5962   char *text = (setup.network_mode ? "Start Network" : "Stop Network");
5963
5964   if (setup.network_mode == network.enabled)
5965     return;
5966
5967   network.enabled = setup.network_mode;
5968
5969   FadeOut(REDRAW_ALL);
5970
5971   ClearField();
5972
5973   DrawTextSCentered(ystart, font_title, text);
5974
5975   FadeIn(REDRAW_ALL);
5976
5977   if (network.enabled)
5978     InitNetworkServer();
5979   else
5980     DisconnectFromNetworkServer();
5981
5982   DrawTextSCentered(ybottom, font_foot,
5983                     "Press any key or button for setup menu");
5984
5985   WaitForEventToContinue();
5986
5987   DrawSetupScreen();
5988 }
5989
5990 static void ToggleGameSpeedsListIfNeeded(void)
5991 {
5992   boolean using_game_speeds_extended = (game_speeds == game_speeds_extended);
5993
5994   if (setup.game_speed_extended == using_game_speeds_extended)
5995     return;
5996
5997   // try to match similar values when changing game speeds list
5998   if (setup.game_speed_extended)
5999     setup.game_frame_delay = (setup.game_frame_delay == 15 ? 16 :
6000                               setup.game_frame_delay == 30 ? 29 :
6001                               setup.game_frame_delay);
6002   else
6003     setup.game_frame_delay = (setup.game_frame_delay == 14 ? 15 :
6004                               setup.game_frame_delay == 16 ? 15 :
6005                               setup.game_frame_delay >= 29 ? 30 :
6006                               setup.game_frame_delay <= 10 ? 10 :
6007                               setup.game_frame_delay);
6008
6009   execSetupGame_setGameSpeeds(TRUE);
6010
6011   DrawSetupScreen();
6012 }
6013
6014 static void ModifyGameSpeedIfNeeded(void)
6015 {
6016   if (strEqual(setup.vsync_mode, STR_VSYNC_MODE_OFF) ||
6017       setup.game_frame_delay <= MAX_VSYNC_FRAME_DELAY)
6018     return;
6019
6020   char message[100];
6021   char *game_speed_text = "Fast";
6022   int game_speed_value = 15;
6023
6024   if (setup.game_speed_extended)
6025   {
6026     game_speed_text = "60 fps";
6027     game_speed_value = 16;
6028   }
6029
6030   sprintf(message, "Game speed set to %s for VSync to work!", game_speed_text);
6031
6032   // set game speed to existing list value that is fast enough for vsync
6033   setup.game_frame_delay = game_speed_value;
6034
6035   execSetupGame_setGameSpeeds(TRUE);
6036
6037   Request(message, REQ_CONFIRM);
6038 }
6039
6040 static void DisableVsyncIfNeeded(void)
6041 {
6042   if (strEqual(setup.vsync_mode, STR_VSYNC_MODE_OFF) ||
6043       (setup.game_frame_delay >= MIN_VSYNC_FRAME_DELAY &&
6044        setup.game_frame_delay <= MAX_VSYNC_FRAME_DELAY))
6045     return;
6046
6047   // disable vsync for the selected game speed to work
6048   setup.vsync_mode = STR_VSYNC_MODE_OFF;
6049
6050   execSetupGraphics_setVsyncModes(TRUE);
6051
6052   Request("VSync disabled for this game speed to work!", REQ_CONFIRM);
6053 }
6054
6055 static struct
6056 {
6057   void *value;
6058   void *related_value;
6059 } hide_related_entry_list[] =
6060 {
6061   { &setup.game_frame_delay,            execSetupChooseGameSpeed        },
6062   { &setup.game_frame_delay,            &game_speed_text                },
6063
6064   { &setup.scroll_delay_value,          execSetupChooseScrollDelay      },
6065   { &setup.scroll_delay_value,          &scroll_delay_text              },
6066
6067   { &setup.engine_snapshot_mode,        execSetupChooseSnapshotMode     },
6068   { &setup.engine_snapshot_mode,        &snapshot_mode_text             },
6069
6070   { &setup.window_scaling_percent,      execSetupChooseWindowSize       },
6071   { &setup.window_scaling_percent,      &window_size_text               },
6072
6073   { &setup.window_scaling_quality,      execSetupChooseScalingType      },
6074   { &setup.window_scaling_quality,      &scaling_type_text              },
6075
6076   { &setup.screen_rendering_mode,       execSetupChooseRenderingMode    },
6077   { &setup.screen_rendering_mode,       &rendering_mode_text            },
6078
6079   { &setup.vsync_mode,                  execSetupChooseVsyncMode        },
6080   { &setup.vsync_mode,                  &vsync_mode_text                },
6081
6082   { &setup.graphics_set,                execSetupChooseGraphics         },
6083   { &setup.graphics_set,                &graphics_set_name              },
6084
6085   { &setup.sounds_set,                  execSetupChooseSounds           },
6086   { &setup.sounds_set,                  &sounds_set_name                },
6087
6088   { &setup.music_set,                   execSetupChooseMusic            },
6089   { &setup.music_set,                   &music_set_name                 },
6090
6091   { &setup.volume_simple,               execSetupChooseVolumeSimple     },
6092   { &setup.volume_simple,               &volume_simple_text             },
6093
6094   { &setup.volume_loops,                execSetupChooseVolumeLoops      },
6095   { &setup.volume_loops,                &volume_loops_text              },
6096
6097   { &setup.volume_music,                execSetupChooseVolumeMusic      },
6098   { &setup.volume_music,                &volume_music_text              },
6099
6100   { &setup.touch.control_type,          execSetupChooseTouchControls    },
6101   { &setup.touch.control_type,          &touch_controls_text            },
6102
6103   { &setup.touch.move_distance,         execSetupChooseMoveDistance     },
6104   { &setup.touch.move_distance,         &move_distance_text             },
6105
6106   { &setup.touch.drop_distance,         execSetupChooseDropDistance     },
6107   { &setup.touch.drop_distance,         &drop_distance_text             },
6108
6109   { &setup.touch.transparency,          execSetupChooseTransparency     },
6110   { &setup.touch.transparency,          &transparency_text              },
6111
6112   { &setup.touch.grid_xsize[0],         execSetupChooseGridXSize_0      },
6113   { &setup.touch.grid_xsize[0],         &grid_size_text[0][0]           },
6114
6115   { &setup.touch.grid_ysize[0],         execSetupChooseGridYSize_0      },
6116   { &setup.touch.grid_ysize[0],         &grid_size_text[0][1]           },
6117
6118   { &setup.touch.grid_xsize[1],         execSetupChooseGridXSize_1      },
6119   { &setup.touch.grid_xsize[1],         &grid_size_text[1][0]           },
6120
6121   { &setup.touch.grid_ysize[1],         execSetupChooseGridYSize_1      },
6122   { &setup.touch.grid_ysize[1],         &grid_size_text[1][1]           },
6123
6124   { NULL,                               NULL                            }
6125 };
6126
6127 void setHideRelatedSetupEntries(void)
6128 {
6129   int i;
6130
6131   for (i = 0; hide_related_entry_list[i].value != NULL; i++)
6132     if (hideSetupEntry(hide_related_entry_list[i].value))
6133       setHideSetupEntry(hide_related_entry_list[i].related_value);
6134 }
6135
6136 static struct TokenInfo setup_info_main[] =
6137 {
6138   { TYPE_ENTER_MENU,    execSetupGame,          STR_SETUP_GAME          },
6139   { TYPE_ENTER_MENU,    execSetupEditor,        STR_SETUP_EDITOR        },
6140   { TYPE_ENTER_MENU,    execSetupGraphics,      STR_SETUP_GRAPHICS      },
6141   { TYPE_ENTER_MENU,    execSetupSound,         STR_SETUP_SOUND         },
6142   { TYPE_ENTER_MENU,    execSetupArtwork,       STR_SETUP_ARTWORK       },
6143   { TYPE_ENTER_MENU,    execSetupInput,         STR_SETUP_INPUT         },
6144   { TYPE_ENTER_MENU,    execSetupTouch,         STR_SETUP_TOUCH         },
6145   { TYPE_ENTER_MENU,    execSetupShortcuts,     STR_SETUP_SHORTCUTS     },
6146   { TYPE_EMPTY,         NULL,                   ""                      },
6147   { TYPE_LEAVE_MENU,    execExitSetup,          STR_SETUP_EXIT          },
6148   { TYPE_LEAVE_MENU,    execSaveAndExitSetup,   STR_SETUP_SAVE_AND_EXIT },
6149
6150   { 0,                  NULL,                   NULL                    }
6151 };
6152
6153 static struct TokenInfo setup_info_game[] =
6154 {
6155   { TYPE_SWITCH,        &setup.team_mode,       "Team-Mode (Multi-Player):" },
6156   { TYPE_SWITCH,        &setup.network_mode,    "Network Multi-Player Mode:" },
6157   { TYPE_PLAYER,        &setup.network_player_nr,"Preferred Network Player:" },
6158   { TYPE_TEXT_INPUT,    execGadgetNetworkServer, "Network Server Hostname:" },
6159   { TYPE_STRING,        &network_server_text,   ""                      },
6160   { TYPE_YES_NO,        &setup.input_on_focus,  "Only Move Focussed Player:" },
6161   { TYPE_SWITCH,        &setup.time_limit,      "Time Limit:"           },
6162   { TYPE_SWITCH,        &setup.handicap,        "Handicap:"             },
6163   { TYPE_SWITCH,        &setup.skip_levels,     "Skip Unsolved Levels:" },
6164   { TYPE_SWITCH,        &setup.increment_levels,"Increment Solved Levels:" },
6165   { TYPE_SWITCH,        &setup.auto_play_next_level,"Auto-play Next Level:" },
6166   { TYPE_SWITCH,        &setup.skip_scores_after_game,"Skip Scores After Game:" },
6167   { TYPE_YES_NO,        &setup.ask_on_game_over, "Ask on Game Over:"    },
6168   { TYPE_SWITCH,        &setup.autorecord,      "Auto-Record Tapes:"    },
6169   { TYPE_ENTER_LIST,    execSetupChooseGameSpeed, "Game Speed:"         },
6170   { TYPE_STRING,        &game_speed_text,       ""                      },
6171   { TYPE_SWITCH,        &setup.game_speed_extended, "Game Speed Extended List:" },
6172 #if 1
6173   { TYPE_ENTER_LIST,    execSetupChooseScrollDelay, "Scroll Delay:"     },
6174   { TYPE_STRING,        &scroll_delay_text,     ""                      },
6175 #endif
6176   { TYPE_ENTER_LIST, execSetupChooseSnapshotMode,"Game Engine Snapshot Mode:" },
6177   { TYPE_STRING,        &snapshot_mode_text,    ""                      },
6178   { TYPE_SWITCH,        &setup.show_snapshot_buttons,"Show Snapshot Buttons:" },
6179   { TYPE_EMPTY,         NULL,                   ""                      },
6180   { TYPE_LEAVE_MENU,    execSetupMain,          "Back"                  },
6181
6182   { 0,                  NULL,                   NULL                    }
6183 };
6184
6185 static struct TokenInfo setup_info_editor[] =
6186 {
6187 #if 0
6188   { TYPE_SWITCH,        &setup.editor.el_boulderdash,   "Boulder Dash:" },
6189   { TYPE_SWITCH,        &setup.editor.el_emerald_mine,  "Emerald Mine:" },
6190   { TYPE_SWITCH, &setup.editor.el_emerald_mine_club,    "Emerald Mine Club:" },
6191   { TYPE_SWITCH,        &setup.editor.el_more,          "Rocks'n'Diamonds:" },
6192   { TYPE_SWITCH,        &setup.editor.el_sokoban,       "Sokoban:"      },
6193   { TYPE_SWITCH,        &setup.editor.el_supaplex,      "Supaplex:"     },
6194   { TYPE_SWITCH,        &setup.editor.el_diamond_caves, "Diamond Caves II:" },
6195   { TYPE_SWITCH,        &setup.editor.el_dx_boulderdash,"DX-Boulderdash:" },
6196   { TYPE_SWITCH,        &setup.editor.el_chars,         "Text Characters:" },
6197   { TYPE_SWITCH, &setup.editor.el_steel_chars, "Text Characters (Steel):" },
6198 #endif
6199   { TYPE_SWITCH,        &setup.editor.el_classic,  "Classic Elements:" },
6200   { TYPE_SWITCH,        &setup.editor.el_custom,  "Custom & Group Elements:" },
6201 #if 0
6202   { TYPE_SWITCH,        &setup.editor.el_headlines,     "Headlines:"    },
6203 #endif
6204   { TYPE_SWITCH, &setup.editor.el_user_defined, "User defined element list:" },
6205   { TYPE_SWITCH,        &setup.editor.el_dynamic,  "Dynamic level elements:" },
6206   { TYPE_EMPTY,         NULL,                   ""                      },
6207 #if 0
6208   { TYPE_SWITCH,        &setup.editor.el_by_game,   "Show elements by game:" },
6209   { TYPE_SWITCH,        &setup.editor.el_by_type,   "Show elements by type:" },
6210   { TYPE_EMPTY,         NULL,                   ""                      },
6211 #endif
6212   { TYPE_SWITCH, &setup.editor.show_element_token,      "Show element token:" },
6213   { TYPE_EMPTY,         NULL,                   ""                      },
6214   { TYPE_LEAVE_MENU,    execSetupMain,          "Back"                  },
6215
6216   { 0,                  NULL,                   NULL                    }
6217 };
6218
6219 static struct TokenInfo setup_info_graphics[] =
6220 {
6221 #if defined(TARGET_SDL2) && !defined(PLATFORM_ANDROID)
6222   { TYPE_SWITCH,        &setup.fullscreen,      "Fullscreen:"           },
6223   { TYPE_ENTER_LIST,    execSetupChooseWindowSize, "Window Scaling:"    },
6224   { TYPE_STRING,        &window_size_text,      ""                      },
6225   { TYPE_ENTER_LIST,    execSetupChooseScalingType, "Anti-Aliasing:"    },
6226   { TYPE_STRING,        &scaling_type_text,     ""                      },
6227   { TYPE_ENTER_LIST,    execSetupChooseRenderingMode, "Special Rendering:" },
6228   { TYPE_STRING,        &rendering_mode_text,   ""                      },
6229 #endif
6230 #if 0
6231   { TYPE_ENTER_LIST,    execSetupChooseScrollDelay, "Scroll Delay:"     },
6232   { TYPE_STRING,        &scroll_delay_text,     ""                      },
6233 #endif
6234   { TYPE_ENTER_LIST,    execSetupChooseVsyncMode, "Vertical Sync (VSync):" },
6235   { TYPE_STRING,        &vsync_mode_text,       ""                      },
6236   { TYPE_SWITCH,        &setup.fade_screens,    "Fade Screens:"         },
6237   { TYPE_SWITCH,        &setup.quick_switch,    "Quick Player Focus Switch:" },
6238   { TYPE_SWITCH,        &setup.quick_doors,     "Quick Menu Doors:"     },
6239   { TYPE_SWITCH,        &setup.show_titlescreen,"Show Title Screens:"   },
6240   { TYPE_SWITCH,        &setup.toons,           "Show Menu Animations:" },
6241   { TYPE_ECS_AGA,       &setup.prefer_aga_graphics,"EMC graphics preference:" },
6242   { TYPE_SWITCH, &setup.sp_show_border_elements,"Supaplex Border Elements:" },
6243   { TYPE_SWITCH,        &setup.small_game_graphics, "Small Game Graphics:" },
6244   { TYPE_EMPTY,         NULL,                   ""                      },
6245   { TYPE_LEAVE_MENU,    execSetupMain,          "Back"                  },
6246
6247   { 0,                  NULL,                   NULL                    }
6248 };
6249
6250 static struct TokenInfo setup_info_sound[] =
6251 {
6252   { TYPE_SWITCH,        &setup.sound_simple,    "Sound Effects (Normal):"  },
6253   { TYPE_SWITCH,        &setup.sound_loops,     "Sound Effects (Looping):" },
6254   { TYPE_SWITCH,        &setup.sound_music,     "Music:"                },
6255   { TYPE_EMPTY,         NULL,                   ""                      },
6256   { TYPE_ENTER_LIST,    execSetupChooseVolumeSimple, "Sound Volume (Normal):" },
6257   { TYPE_STRING,        &volume_simple_text,    ""                      },
6258   { TYPE_ENTER_LIST,    execSetupChooseVolumeLoops, "Sound Volume (Looping):" },
6259   { TYPE_STRING,        &volume_loops_text,     ""                      },
6260   { TYPE_ENTER_LIST,    execSetupChooseVolumeMusic, "Music Volume:"     },
6261   { TYPE_STRING,        &volume_music_text,     ""                      },
6262   { TYPE_EMPTY,         NULL,                   ""                      },
6263   { TYPE_LEAVE_MENU,    execSetupMain,          "Back"                  },
6264
6265   { 0,                  NULL,                   NULL                    }
6266 };
6267
6268 static struct TokenInfo setup_info_artwork[] =
6269 {
6270   { TYPE_ENTER_LIST,    execSetupChooseGraphics,"Custom Graphics:"      },
6271   { TYPE_STRING,        &graphics_set_name,     ""                      },
6272   { TYPE_ENTER_LIST,    execSetupChooseSounds,  "Custom Sounds:"        },
6273   { TYPE_STRING,        &sounds_set_name,       ""                      },
6274   { TYPE_ENTER_LIST,    execSetupChooseMusic,   "Custom Music:"         },
6275   { TYPE_STRING,        &music_set_name,        ""                      },
6276   { TYPE_EMPTY,         NULL,                   ""                      },
6277   { TYPE_YES_NO_AUTO,&setup.override_level_graphics,"Override Level Graphics:"},
6278   { TYPE_YES_NO_AUTO,&setup.override_level_sounds,  "Override Level Sounds:"  },
6279   { TYPE_YES_NO_AUTO,&setup.override_level_music,   "Override Level Music:"   },
6280   { TYPE_EMPTY,         NULL,                   ""                      },
6281   { TYPE_LEAVE_MENU,    execSetupMain,          "Back"                  },
6282
6283   { 0,                  NULL,                   NULL                    }
6284 };
6285
6286 static struct TokenInfo setup_info_input[] =
6287 {
6288   { TYPE_SWITCH,        NULL,                   "Player:"               },
6289   { TYPE_SWITCH,        NULL,                   "Device:"               },
6290   { TYPE_SWITCH,        NULL,                   ""                      },
6291   { TYPE_SKIPPABLE,     NULL,                   ""                      },
6292   { TYPE_EMPTY,         NULL,                   ""                      },
6293   { TYPE_EMPTY,         NULL,                   ""                      },
6294   { TYPE_EMPTY,         NULL,                   ""                      },
6295   { TYPE_EMPTY,         NULL,                   ""                      },
6296   { TYPE_EMPTY,         NULL,                   ""                      },
6297   { TYPE_EMPTY,         NULL,                   ""                      },
6298   { TYPE_EMPTY,         NULL,                   ""                      },
6299   { TYPE_EMPTY,         NULL,                   ""                      },
6300   { TYPE_SKIPPABLE,     NULL,                   ""                      },
6301   { TYPE_LEAVE_MENU,    execSetupMain,          "Back"                  },
6302
6303   { 0,                  NULL,                   NULL                    }
6304 };
6305
6306 static struct TokenInfo setup_info_touch[] =
6307 {
6308   { TYPE_ENTER_LIST,    execSetupChooseTouchControls, "Touch Control Type:" },
6309   { TYPE_STRING,        &touch_controls_text,   ""                      },
6310   { TYPE_EMPTY,         NULL,                   ""                      },
6311   { TYPE_LEAVE_MENU,    execSetupMain,          "Back"                  },
6312
6313   { 0,                  NULL,                   NULL                    }
6314 };
6315
6316 static struct TokenInfo setup_info_touch_virtual_buttons_0[] =
6317 {
6318   { TYPE_ENTER_LIST,    execSetupChooseTouchControls, "Touch Control Type:" },
6319   { TYPE_STRING,        &touch_controls_text,   ""                      },
6320   { TYPE_EMPTY,         NULL,                   ""                      },
6321   { TYPE_ENTER_LIST,    execSetupChooseGridXSize_0, "Horizontal Buttons (Landscape):"   },
6322   { TYPE_STRING,        &grid_size_text[0][0],  ""                      },
6323   { TYPE_ENTER_LIST,    execSetupChooseGridYSize_0, "Vertical Buttons (Landscape):"     },
6324   { TYPE_STRING,        &grid_size_text[0][1],  ""                      },
6325   { TYPE_ENTER_LIST,    execSetupChooseTransparency, "Button Transparency:" },
6326   { TYPE_STRING,        &transparency_text,     ""                      },
6327   { TYPE_SWITCH,        &setup.touch.draw_outlined, "Draw Buttons Outlined:" },
6328   { TYPE_SWITCH,        &setup.touch.draw_pressed, "Highlight Pressed Buttons:" },
6329   { TYPE_EMPTY,         NULL,                   ""                      },
6330   { TYPE_ENTER_LIST,    execSetupConfigureVirtualButtons, "Configure Virtual Buttons" },
6331   { TYPE_EMPTY,         NULL,                   ""                      },
6332   { TYPE_LEAVE_MENU,    execSetupMain,          "Back"                  },
6333
6334   { 0,                  NULL,                   NULL                    }
6335 };
6336
6337 static struct TokenInfo setup_info_touch_virtual_buttons_1[] =
6338 {
6339   { TYPE_ENTER_LIST,    execSetupChooseTouchControls, "Touch Control Type:" },
6340   { TYPE_STRING,        &touch_controls_text,   ""                      },
6341   { TYPE_EMPTY,         NULL,                   ""                      },
6342   { TYPE_ENTER_LIST,    execSetupChooseGridXSize_1, "Horizontal Buttons (Portrait):"    },
6343   { TYPE_STRING,        &grid_size_text[1][0],  ""                      },
6344   { TYPE_ENTER_LIST,    execSetupChooseGridYSize_1, "Vertical Buttons (Portrait):"      },
6345   { TYPE_STRING,        &grid_size_text[1][1],  ""                      },
6346   { TYPE_ENTER_LIST,    execSetupChooseTransparency, "Button Transparency:" },
6347   { TYPE_STRING,        &transparency_text,     ""                      },
6348   { TYPE_SWITCH,        &setup.touch.draw_outlined, "Draw Buttons Outlined:" },
6349   { TYPE_SWITCH,        &setup.touch.draw_pressed, "Highlight Pressed Buttons:" },
6350   { TYPE_EMPTY,         NULL,                   ""                      },
6351   { TYPE_ENTER_LIST,    execSetupConfigureVirtualButtons, "Configure Virtual Buttons" },
6352   { TYPE_EMPTY,         NULL,                   ""                      },
6353   { TYPE_LEAVE_MENU,    execSetupMain,          "Back"                  },
6354
6355   { 0,                  NULL,                   NULL                    }
6356 };
6357
6358 static struct TokenInfo *setup_info_touch_virtual_buttons[] =
6359 {
6360   setup_info_touch_virtual_buttons_0,
6361   setup_info_touch_virtual_buttons_1
6362 };
6363
6364 static struct TokenInfo setup_info_touch_wipe_gestures[] =
6365 {
6366   { TYPE_ENTER_LIST,    execSetupChooseTouchControls, "Touch Control Type:" },
6367   { TYPE_STRING,        &touch_controls_text,   ""                      },
6368   { TYPE_EMPTY,         NULL,                   ""                      },
6369   { TYPE_ENTER_LIST,    execSetupChooseMoveDistance, "Move Trigger Distance:" },
6370   { TYPE_STRING,        &move_distance_text,    ""                      },
6371   { TYPE_ENTER_LIST,    execSetupChooseDropDistance, "Drop Trigger Distance:" },
6372   { TYPE_STRING,        &drop_distance_text,    ""                      },
6373   { TYPE_EMPTY,         NULL,                   ""                      },
6374   { TYPE_LEAVE_MENU,    execSetupMain,          "Back"                  },
6375
6376   { 0,                  NULL,                   NULL                    }
6377 };
6378
6379 static struct TokenInfo setup_info_shortcuts[] =
6380 {
6381   { TYPE_ENTER_MENU,    execSetupShortcuts1,    "Various Keys"          },
6382   { TYPE_ENTER_MENU,    execSetupShortcuts2,    "Player Focus"          },
6383   { TYPE_ENTER_MENU,    execSetupShortcuts3,    "Tape Buttons"          },
6384   { TYPE_ENTER_MENU,    execSetupShortcuts4,    "Sound & Music"         },
6385   { TYPE_ENTER_MENU,    execSetupShortcuts5,    "TAS Snap Keys"         },
6386   { TYPE_EMPTY,         NULL,                   ""                      },
6387   { TYPE_LEAVE_MENU,    execSetupMain,          "Back"                  },
6388
6389   { 0,                  NULL,                   NULL                    }
6390 };
6391
6392 static struct TokenInfo setup_info_shortcuts_1[] =
6393 {
6394   { TYPE_KEYTEXT,       NULL,           "Quick Save Game to Tape:",     },
6395   { TYPE_KEY,           &setup.shortcut.save_game, ""                   },
6396   { TYPE_KEYTEXT,       NULL,           "Quick Load Game from Tape:",   },
6397   { TYPE_KEY,           &setup.shortcut.load_game, ""                   },
6398   { TYPE_KEYTEXT,       NULL,           "Start Game & Toggle Pause:",   },
6399   { TYPE_KEY,           &setup.shortcut.toggle_pause, ""                },
6400   { TYPE_EMPTY,         NULL,                   ""                      },
6401   { TYPE_YES_NO,        &setup.ask_on_escape,   "Ask on 'Esc' Key:"     },
6402   { TYPE_YES_NO, &setup.ask_on_escape_editor,   "Ask on 'Esc' Key (Editor):" },
6403   { TYPE_EMPTY,         NULL,                   ""                      },
6404   { TYPE_LEAVE_MENU,    execSetupShortcuts,     "Back"                  },
6405
6406   { 0,                  NULL,                   NULL                    }
6407 };
6408
6409 static struct TokenInfo setup_info_shortcuts_2[] =
6410 {
6411   { TYPE_KEYTEXT,       NULL,           "Set Focus to Player 1:",       },
6412   { TYPE_KEY,           &setup.shortcut.focus_player[0], ""             },
6413   { TYPE_KEYTEXT,       NULL,           "Set Focus to Player 2:",       },
6414   { TYPE_KEY,           &setup.shortcut.focus_player[1], ""             },
6415   { TYPE_KEYTEXT,       NULL,           "Set Focus to Player 3:",       },
6416   { TYPE_KEY,           &setup.shortcut.focus_player[2], ""             },
6417   { TYPE_KEYTEXT,       NULL,           "Set Focus to Player 4:",       },
6418   { TYPE_KEY,           &setup.shortcut.focus_player[3], ""             },
6419   { TYPE_KEYTEXT,       NULL,           "Set Focus to All Players:",    },
6420   { TYPE_KEY,           &setup.shortcut.focus_player_all, ""            },
6421   { TYPE_EMPTY,         NULL,                   ""                      },
6422   { TYPE_LEAVE_MENU,    execSetupShortcuts,     "Back"                  },
6423
6424   { 0,                  NULL,                   NULL                    }
6425 };
6426
6427 static struct TokenInfo setup_info_shortcuts_3[] =
6428 {
6429   { TYPE_KEYTEXT,       NULL,                   "Eject Tape:",          },
6430   { TYPE_KEY,           &setup.shortcut.tape_eject, ""                  },
6431   { TYPE_KEYTEXT,       NULL,                   "Warp / Single Step:",  },
6432   { TYPE_KEY,           &setup.shortcut.tape_extra, ""                  },
6433   { TYPE_KEYTEXT,       NULL,                   "Stop Tape:",           },
6434   { TYPE_KEY,           &setup.shortcut.tape_stop, ""                   },
6435   { TYPE_KEYTEXT,       NULL,                   "Pause / Unpause Tape:",},
6436   { TYPE_KEY,           &setup.shortcut.tape_pause, ""                  },
6437   { TYPE_KEYTEXT,       NULL,                   "Record Tape:",         },
6438   { TYPE_KEY,           &setup.shortcut.tape_record, ""                 },
6439   { TYPE_KEYTEXT,       NULL,                   "Play Tape:",           },
6440   { TYPE_KEY,           &setup.shortcut.tape_play, ""                   },
6441   { TYPE_EMPTY,         NULL,                   ""                      },
6442   { TYPE_LEAVE_MENU,    execSetupShortcuts,     "Back"                  },
6443
6444   { 0,                  NULL,                   NULL                    }
6445 };
6446
6447 static struct TokenInfo setup_info_shortcuts_4[] =
6448 {
6449   { TYPE_KEYTEXT,       NULL,           "Toggle Sound Effects (Normal):", },
6450   { TYPE_KEY,           &setup.shortcut.sound_simple, ""                },
6451   { TYPE_KEYTEXT,       NULL,           "Toggle Sound Effects (Looping):", },
6452   { TYPE_KEY,           &setup.shortcut.sound_loops, ""                 },
6453   { TYPE_KEYTEXT,       NULL,           "Toggle Music:",                },
6454   { TYPE_KEY,           &setup.shortcut.sound_music, ""                 },
6455   { TYPE_EMPTY,         NULL,                   ""                      },
6456   { TYPE_LEAVE_MENU,    execSetupShortcuts,     "Back"                  },
6457
6458   { 0,                  NULL,                   NULL                    }
6459 };
6460
6461 static struct TokenInfo setup_info_shortcuts_5[] =
6462 {
6463   { TYPE_KEYTEXT,       NULL,                   "Snap Left:",           },
6464   { TYPE_KEY,           &setup.shortcut.snap_left, ""                   },
6465   { TYPE_KEYTEXT,       NULL,                   "Snap Right:",          },
6466   { TYPE_KEY,           &setup.shortcut.snap_right, ""                  },
6467   { TYPE_KEYTEXT,       NULL,                   "Snap Up:",             },
6468   { TYPE_KEY,           &setup.shortcut.snap_up, ""                     },
6469   { TYPE_KEYTEXT,       NULL,                   "Snap Down:",           },
6470   { TYPE_KEY,           &setup.shortcut.snap_down, ""                   },
6471   { TYPE_EMPTY,         NULL,                   ""                      },
6472   { TYPE_LEAVE_MENU,    execSetupShortcuts,     "Back"                  },
6473
6474   { 0,                  NULL,                   NULL                    }
6475 };
6476
6477 static Key getSetupKey(void)
6478 {
6479   Key key = KSYM_UNDEFINED;
6480   boolean got_key_event = FALSE;
6481
6482   while (!got_key_event)
6483   {
6484     Event event;
6485
6486     if (NextValidEvent(&event))
6487     {
6488       switch (event.type)
6489       {
6490         case EVENT_KEYPRESS:
6491           {
6492             key = GetEventKey((KeyEvent *)&event, TRUE);
6493
6494             // press 'Escape' or 'Enter' to keep the existing key binding
6495             if (key == KSYM_Escape || key == KSYM_Return)
6496               key = KSYM_UNDEFINED;     // keep old value
6497
6498             got_key_event = TRUE;
6499           }
6500           break;
6501
6502         case EVENT_KEYRELEASE:
6503           key_joystick_mapping = 0;
6504           break;
6505
6506         default:
6507           HandleOtherEvents(&event);
6508           break;
6509       }
6510     }
6511
6512     BackToFront();
6513   }
6514
6515   return key;
6516 }
6517
6518 static int getSetupValueFont(int type, void *value)
6519 {
6520   if (type & TYPE_GHOSTED)
6521     return FONT_OPTION_OFF;
6522   else if (type & TYPE_KEY)
6523     return (type & TYPE_QUERY ? FONT_INPUT_1_ACTIVE : FONT_VALUE_1);
6524   else if (type & TYPE_STRING)
6525     return FONT_VALUE_2;
6526   else if (type & TYPE_ECS_AGA)
6527     return FONT_VALUE_1;
6528   else if (type & TYPE_BOOLEAN_STYLE)
6529     return (*(boolean *)value ? FONT_OPTION_ON : FONT_OPTION_OFF);
6530   else if (type & TYPE_YES_NO_AUTO)
6531     return (*(int *)value == AUTO  ? FONT_OPTION_ON :
6532             *(int *)value == FALSE ? FONT_OPTION_OFF : FONT_OPTION_ON);
6533   else if (type & TYPE_PLAYER)
6534     return FONT_VALUE_1;
6535   else
6536     return FONT_VALUE_1;
6537 }
6538
6539 static int getSetupValueFontNarrow(int type, int font_nr)
6540 {
6541   return (font_nr == FONT_VALUE_1    ? FONT_VALUE_NARROW :
6542           font_nr == FONT_OPTION_ON  ? FONT_OPTION_ON_NARROW :
6543           font_nr == FONT_OPTION_OFF ? FONT_OPTION_OFF_NARROW :
6544           font_nr);
6545 }
6546
6547 static void drawSetupValue(int screen_pos, int setup_info_pos_raw)
6548 {
6549   int si_pos = (setup_info_pos_raw < 0 ? screen_pos : setup_info_pos_raw);
6550   struct TokenInfo *si = &setup_info[si_pos];
6551   boolean font_draw_xoffset_modified = FALSE;
6552   boolean scrollbar_needed = (num_setup_info < max_setup_info);
6553   int font_draw_xoffset_old = -1;
6554   int xoffset = (scrollbar_needed ? -1 : 0);
6555   int menu_screen_value_xpos = MENU_SCREEN_VALUE_XPOS + xoffset;
6556   int menu_screen_max_xpos = MENU_SCREEN_MAX_XPOS + xoffset;
6557   int xpos = menu_screen_value_xpos;
6558   int ypos = MENU_SCREEN_START_YPOS + screen_pos;
6559   int startx = mSX + xpos * 32;
6560   int starty = mSY + ypos * 32;
6561   int type = si->type;
6562   void *value = si->value;
6563   char *value_string = getSetupValue(type, value);
6564   int font_nr_default = getSetupValueFont(type, value);
6565   int font_width_default = getFontWidth(font_nr_default);
6566   int font_nr = font_nr_default;
6567   int i;
6568
6569   if (value_string == NULL)
6570     return;
6571
6572   if (type & TYPE_KEY)
6573   {
6574     xpos = MENU_SCREEN_START_XPOS;
6575
6576     if (type & TYPE_QUERY)
6577       value_string = "<press key>";
6578   }
6579   else if (type & TYPE_STRING)
6580   {
6581     int max_value_len = (SXSIZE - 2 * TILEX) / font_width_default;
6582
6583     xpos = MENU_SCREEN_START_XPOS;
6584
6585     if (strlen(value_string) > max_value_len)
6586       value_string[max_value_len] = '\0';
6587   }
6588   else if (type & TYPE_YES_NO_AUTO)
6589   {
6590     xpos = menu_screen_value_xpos - 1;
6591   }
6592   else if (type & TYPE_PLAYER)
6593   {
6594     int displayed_player_nr = *(int *)value + 1;
6595
6596     value_string = getSetupValue(TYPE_INTEGER, (void *)&displayed_player_nr);
6597   }
6598
6599   startx = mSX + xpos * 32;
6600   starty = mSY + ypos * 32;
6601
6602   // special check if right-side setup values moved left due to scrollbar
6603   if (scrollbar_needed && xpos > MENU_SCREEN_START_XPOS)
6604   {
6605     int max_menu_text_length = 26;      // maximum text length for classic menu
6606     int font_xoffset = getFontBitmapInfo(font_nr)->draw_xoffset;
6607     int text_startx = mSX + MENU_SCREEN_START_XPOS * 32;
6608     int text_font_nr = getMenuTextFont(FONT_MENU_2);
6609     int text_font_xoffset = getFontBitmapInfo(text_font_nr)->draw_xoffset;
6610     int text_width = max_menu_text_length * getFontWidth(text_font_nr);
6611
6612     if (startx + font_xoffset < text_startx + text_width + text_font_xoffset)
6613     {
6614       xpos += 1;
6615       startx = mSX + xpos * 32;
6616
6617       font_nr = getSetupValueFontNarrow(type, font_nr);
6618     }
6619   }
6620
6621   // downward compatibility correction for Juergen Bonhagen's menu settings
6622   if (setup_mode != SETUP_MODE_INPUT)
6623   {
6624     int max_menu_text_length_big = (menu_screen_value_xpos -
6625                                     MENU_SCREEN_START_XPOS);
6626     int max_menu_text_length_medium = max_menu_text_length_big * 2;
6627     int check_font_nr = FONT_OPTION_ON; // known font that needs correction
6628     int font1_xoffset = getFontBitmapInfo(font_nr)->draw_xoffset;
6629     int font2_xoffset = getFontBitmapInfo(check_font_nr)->draw_xoffset;
6630     int text_startx = mSX + MENU_SCREEN_START_XPOS * 32;
6631     int text_font_nr = getMenuTextFont(FONT_MENU_2);
6632     int text_font_xoffset = getFontBitmapInfo(text_font_nr)->draw_xoffset;
6633     int text_width = max_menu_text_length_medium * getFontWidth(text_font_nr);
6634     boolean correct_font_draw_xoffset = FALSE;
6635
6636     if (xpos == MENU_SCREEN_START_XPOS &&
6637         startx + font1_xoffset < text_startx + text_font_xoffset)
6638       correct_font_draw_xoffset = TRUE;
6639
6640     if (xpos == menu_screen_value_xpos &&
6641         startx + font2_xoffset < text_startx + text_width + text_font_xoffset)
6642       correct_font_draw_xoffset = TRUE;
6643
6644     // check if setup value would overlap with setup text when printed
6645     // (this can happen for extreme/wrong values for font draw offset)
6646     if (correct_font_draw_xoffset)
6647     {
6648       font_draw_xoffset_old = getFontBitmapInfo(font_nr)->draw_xoffset;
6649       font_draw_xoffset_modified = TRUE;
6650
6651       if (type & TYPE_KEY)
6652         getFontBitmapInfo(font_nr)->draw_xoffset += 2 * getFontWidth(font_nr);
6653       else if (!(type & TYPE_STRING))
6654         getFontBitmapInfo(font_nr)->draw_xoffset = text_font_xoffset + 20 -
6655           max_menu_text_length_medium * (16 - getFontWidth(text_font_nr));
6656     }
6657   }
6658
6659   for (i = 0; i <= menu_screen_max_xpos - xpos; i++)
6660     DrawText(startx + i * font_width_default, starty, " ", font_nr_default);
6661
6662   DrawText(startx, starty, value_string, font_nr);
6663
6664   if (type & TYPE_PLAYER)
6665   {
6666     struct FontBitmapInfo *font = getFontBitmapInfo(font_nr);
6667     int player_nr = *(int *)value;
6668     int xoff = font->draw_xoffset + getFontWidth(font_nr);
6669     int yoff = font->draw_yoffset + (getFontHeight(font_nr) - TILEY) / 2;
6670     int startx2 = startx + xoff;
6671     int starty2 = starty + yoff;
6672
6673     if (DrawingOnBackground(startx2, starty2))
6674       ClearRectangleOnBackground(drawto, startx2, starty2, TILEX, TILEY);
6675
6676     DrawFixedGraphicThruMaskExt(drawto, startx2, starty2,
6677                                 PLAYER_NR_GFX(IMG_PLAYER_1, player_nr), 0);
6678   }
6679
6680   if (font_draw_xoffset_modified)
6681     getFontBitmapInfo(font_nr)->draw_xoffset = font_draw_xoffset_old;
6682 }
6683
6684 static void changeSetupValue(int screen_pos, int setup_info_pos_raw, int dx)
6685 {
6686   int si_pos = (setup_info_pos_raw < 0 ? screen_pos : setup_info_pos_raw);
6687   struct TokenInfo *si = &setup_info[si_pos];
6688
6689   if (si->type & TYPE_BOOLEAN_STYLE)
6690   {
6691     *(boolean *)si->value ^= TRUE;
6692   }
6693   else if (si->type & TYPE_YES_NO_AUTO)
6694   {
6695     *(int *)si->value =
6696       (dx == -1 ?
6697        (*(int *)si->value == AUTO ? TRUE :
6698         *(int *)si->value == TRUE ? FALSE : AUTO) :
6699        (*(int *)si->value == TRUE ? AUTO :
6700         *(int *)si->value == AUTO ? FALSE : TRUE));
6701   }
6702   else if (si->type & TYPE_KEY)
6703   {
6704     Key key;
6705
6706     si->type |= TYPE_QUERY;
6707     drawSetupValue(screen_pos, setup_info_pos_raw);
6708     si->type &= ~TYPE_QUERY;
6709
6710     key = getSetupKey();
6711     if (key != KSYM_UNDEFINED)
6712       *(Key *)si->value = key;
6713   }
6714   else if (si->type & TYPE_PLAYER)
6715   {
6716     int player_nr = *(int *)si->value;
6717
6718     if (dx)
6719       player_nr += dx;
6720     else
6721       player_nr = Request("Choose player", REQ_PLAYER) - 1;
6722
6723     *(int *)si->value = MIN(MAX(0, player_nr), MAX_PLAYERS - 1);
6724   }
6725
6726   drawSetupValue(screen_pos, setup_info_pos_raw);
6727
6728   // fullscreen state may have changed at this point
6729   if (si->value == &setup.fullscreen)
6730     ToggleFullscreenOrChangeWindowScalingIfNeeded();
6731
6732   // network mode may have changed at this point
6733   if (si->value == &setup.network_mode)
6734     ToggleNetworkModeIfNeeded();
6735
6736   // game speed list may have changed at this point
6737   if (si->value == &setup.game_speed_extended)
6738     ToggleGameSpeedsListIfNeeded();
6739 }
6740
6741 static struct TokenInfo *getSetupInfoFinal(struct TokenInfo *setup_info_orig)
6742 {
6743   static struct TokenInfo *setup_info_final = NULL;
6744   int list_size = 0;
6745   int list_pos = 0;
6746   int i;
6747
6748   // determine maximum list size of target list
6749   while (setup_info_orig[list_size++].type != 0);
6750
6751   // free, allocate and clear memory for target list
6752   checked_free(setup_info_final);
6753   setup_info_final = checked_calloc(list_size * sizeof(struct TokenInfo));
6754
6755   // copy setup info list without setup entries marked as hidden
6756   for (i = 0; setup_info_orig[i].type != 0; i++)
6757   {
6758     // skip setup entries configured to be hidden
6759     if (hideSetupEntry(setup_info_orig[i].value))
6760       continue;
6761
6762     // skip skippable setup entries if screen is lower than usual
6763     if (SCR_FIELDY < SCR_FIELDY_DEFAULT &&
6764         setup_info_orig[i].type == TYPE_SKIPPABLE)
6765       continue;
6766
6767     setup_info_final[list_pos++] = setup_info_orig[i];
6768   }
6769
6770   return setup_info_final;
6771 }
6772
6773 static void DrawSetupScreen_Generic(void)
6774 {
6775   int fade_mask = REDRAW_FIELD;
6776   boolean redraw_all = FALSE;
6777   char *title_string = NULL;
6778   int i;
6779
6780   if (CheckIfGlobalBorderOrPlayfieldViewportHasChanged())
6781     fade_mask = REDRAW_ALL;
6782
6783   UnmapAllGadgets();
6784   FadeMenuSoundsAndMusic();
6785
6786   FreeScreenGadgets();
6787   CreateScreenGadgets();
6788
6789   if (redraw_mask & REDRAW_ALL)
6790     redraw_all = TRUE;
6791
6792   FadeOut(fade_mask);
6793
6794   // needed if different viewport properties defined for setup screen
6795   ChangeViewportPropertiesIfNeeded();
6796
6797   SetMainBackgroundImage(IMG_BACKGROUND_SETUP);
6798
6799   ClearField();
6800
6801   OpenDoor(GetDoorState() | DOOR_NO_DELAY | DOOR_FORCE_REDRAW);
6802
6803   if (setup_mode == SETUP_MODE_MAIN)
6804   {
6805     setup_info = setup_info_main;
6806     title_string = STR_SETUP_MAIN;
6807   }
6808   else if (setup_mode == SETUP_MODE_GAME)
6809   {
6810     setup_info = setup_info_game;
6811     title_string = STR_SETUP_GAME;
6812   }
6813   else if (setup_mode == SETUP_MODE_EDITOR)
6814   {
6815     setup_info = setup_info_editor;
6816     title_string = STR_SETUP_EDITOR;
6817   }
6818   else if (setup_mode == SETUP_MODE_GRAPHICS)
6819   {
6820     setup_info = setup_info_graphics;
6821     title_string = STR_SETUP_GRAPHICS;
6822   }
6823   else if (setup_mode == SETUP_MODE_SOUND)
6824   {
6825     setup_info = setup_info_sound;
6826     title_string = STR_SETUP_SOUND;
6827   }
6828   else if (setup_mode == SETUP_MODE_ARTWORK)
6829   {
6830     setup_info = setup_info_artwork;
6831     title_string = STR_SETUP_ARTWORK;
6832   }
6833   else if (setup_mode == SETUP_MODE_TOUCH)
6834   {
6835     setup_info = setup_info_touch;
6836     title_string = STR_SETUP_TOUCH;
6837
6838     if (strEqual(setup.touch.control_type, TOUCH_CONTROL_VIRTUAL_BUTTONS))
6839       setup_info = setup_info_touch_virtual_buttons[GRID_ACTIVE_NR()];
6840     else if (strEqual(setup.touch.control_type, TOUCH_CONTROL_WIPE_GESTURES))
6841       setup_info = setup_info_touch_wipe_gestures;
6842   }
6843   else if (setup_mode == SETUP_MODE_SHORTCUTS)
6844   {
6845     setup_info = setup_info_shortcuts;
6846     title_string = STR_SETUP_SHORTCUTS;
6847   }
6848   else if (setup_mode == SETUP_MODE_SHORTCUTS_1)
6849   {
6850     setup_info = setup_info_shortcuts_1;
6851     title_string = STR_SETUP_SHORTCUTS;
6852   }
6853   else if (setup_mode == SETUP_MODE_SHORTCUTS_2)
6854   {
6855     setup_info = setup_info_shortcuts_2;
6856     title_string = STR_SETUP_SHORTCUTS;
6857   }
6858   else if (setup_mode == SETUP_MODE_SHORTCUTS_3)
6859   {
6860     setup_info = setup_info_shortcuts_3;
6861     title_string = STR_SETUP_SHORTCUTS;
6862   }
6863   else if (setup_mode == SETUP_MODE_SHORTCUTS_4)
6864   {
6865     setup_info = setup_info_shortcuts_4;
6866     title_string = STR_SETUP_SHORTCUTS;
6867   }
6868   else if (setup_mode == SETUP_MODE_SHORTCUTS_5)
6869   {
6870     setup_info = setup_info_shortcuts_5;
6871     title_string = STR_SETUP_SHORTCUTS;
6872   }
6873
6874   // use modified setup info without setup entries marked as hidden
6875   setup_info = getSetupInfoFinal(setup_info);
6876
6877   DrawTextSCentered(mSY - SY + 16, FONT_TITLE_1, title_string);
6878
6879   // determine maximal number of setup entries that can be displayed on screen
6880   num_setup_info = 0;
6881   for (i = 0; setup_info[i].type != 0 && i < NUM_MENU_ENTRIES_ON_SCREEN; i++)
6882     num_setup_info++;
6883
6884   // determine maximal number of setup entries available for this setup screen
6885   max_setup_info = 0;
6886   for (i = 0; setup_info[i].type != 0; i++)
6887     max_setup_info++;
6888
6889   HandleSetupScreen_Generic(0, 0, 0, 0, MB_MENU_INITIALIZE);
6890
6891   MapScreenGadgets(max_setup_info);
6892
6893   if (redraw_all)
6894     redraw_mask = fade_mask = REDRAW_ALL;
6895
6896   DrawMaskedBorder(fade_mask);
6897
6898   FadeIn(fade_mask);
6899 }
6900
6901 void HandleSetupScreen_Generic(int mx, int my, int dx, int dy, int button)
6902 {
6903   menu_info = setup_info;
6904
6905   HandleMenuScreen(mx, my, dx, dy, button,
6906                    setup_mode, num_setup_info, max_setup_info);
6907 }
6908
6909 static void DrawSetupScreen_Input(void)
6910 {
6911   int i;
6912
6913   FadeOut(REDRAW_FIELD);
6914
6915   ClearField();
6916
6917   setup_info = getSetupInfoFinal(setup_info_input);
6918
6919   DrawTextSCentered(mSY - SY + 16, FONT_TITLE_1, STR_SETUP_INPUT);
6920
6921   for (i = 0; setup_info[i].type != 0; i++)
6922   {
6923     if (setup_info[i].type & (TYPE_ENTER_MENU|TYPE_ENTER_LIST))
6924       initCursor(i, IMG_MENU_BUTTON_ENTER_MENU);
6925     else if (setup_info[i].type & (TYPE_LEAVE_MENU|TYPE_LEAVE_LIST))
6926       initCursor(i, IMG_MENU_BUTTON_LEAVE_MENU);
6927     else if (setup_info[i].type & ~TYPE_SKIP_ENTRY)
6928       initCursor(i, IMG_MENU_BUTTON);
6929
6930     DrawCursorAndText_Setup(i, -1, FALSE);
6931   }
6932
6933   // create gadgets for setup input menu screen
6934   FreeScreenGadgets();
6935   CreateScreenGadgets();
6936
6937   // map gadgets for setup input menu screen
6938   MapScreenMenuGadgets(SCREEN_MASK_INPUT);
6939
6940   HandleSetupScreen_Input(0, 0, 0, 0, MB_MENU_INITIALIZE);
6941
6942   FadeIn(REDRAW_FIELD);
6943 }
6944
6945 static void setJoystickDeviceToNr(char *device_name, int device_nr)
6946 {
6947   if (device_name == NULL)
6948     return;
6949
6950   if (device_nr < 0 || device_nr >= MAX_PLAYERS)
6951     device_nr = 0;
6952
6953   if (strlen(device_name) > 1)
6954   {
6955     char c1 = device_name[strlen(device_name) - 1];
6956     char c2 = device_name[strlen(device_name) - 2];
6957
6958     if (c1 >= '0' && c1 <= '9' && !(c2 >= '0' && c2 <= '9'))
6959       device_name[strlen(device_name) - 1] = '0' + (char)(device_nr % 10);
6960   }
6961   else
6962     strncpy(device_name, getDeviceNameFromJoystickNr(device_nr),
6963             strlen(device_name));
6964 }
6965
6966 static void drawPlayerSetupInputInfo(int player_nr, boolean active)
6967 {
6968   int i;
6969   static struct SetupKeyboardInfo custom_key;
6970   static struct
6971   {
6972     Key *key;
6973     char *text;
6974   } custom[] =
6975   {
6976     { &custom_key.left,  "Axis/Pad Left"  },
6977     { &custom_key.right, "Axis/Pad Right" },
6978     { &custom_key.up,    "Axis/Pad Up"    },
6979     { &custom_key.down,  "Axis/Pad Down"  },
6980     { &custom_key.snap,  "Button 1/A/X"   },
6981     { &custom_key.drop,  "Button 2/B/Y"   }
6982   };
6983   static char *joystick_name[MAX_PLAYERS] =
6984   {
6985     "Joystick1",
6986     "Joystick2",
6987     "Joystick3",
6988     "Joystick4"
6989   };
6990   int font_nr_menu = (active ? FONT_MENU_1_ACTIVE : FONT_MENU_1);
6991   int font_nr_info = FONT_MENU_1;
6992   int font_nr_name = FONT_VALUE_OLD;
6993   int font_nr_on   = FONT_VALUE_1;
6994   int font_nr_off  = FONT_VALUE_OLD;
6995   int pos = 4;
6996
6997   if (SCR_FIELDX < SCR_FIELDX_DEFAULT)
6998   {
6999     font_nr_info = FONT_MENU_2;
7000     font_nr_on   = FONT_VALUE_NARROW;
7001     font_nr_off  = FONT_VALUE_OLD_NARROW;
7002   }
7003
7004   custom_key = setup.input[player_nr].key;
7005
7006   DrawText(mSX + 11 * 32, mSY + 2 * 32, int2str(player_nr + 1, 1),
7007            FONT_INPUT_1_ACTIVE);
7008
7009   ClearRectangleOnBackground(drawto, mSX + 8 * TILEX, mSY + 2 * TILEY,
7010                              TILEX, TILEY);
7011   DrawFixedGraphicThruMaskExt(drawto, mSX + 8 * TILEX, mSY + 2 * TILEY,
7012                               PLAYER_NR_GFX(IMG_PLAYER_1, player_nr), 0);
7013
7014   if (setup.input[player_nr].use_joystick)
7015   {
7016     char *device_name = setup.input[player_nr].joy.device_name;
7017     int joystick_nr = getJoystickNrFromDeviceName(device_name);
7018     boolean joystick_active = CheckJoystickOpened(joystick_nr);
7019     char *text = joystick_name[joystick_nr];
7020     int font_nr = (joystick_active ? font_nr_on : font_nr_off);
7021
7022     DrawText(mSX + 8 * 32, mSY + 3 * 32, text, font_nr);
7023     DrawText(mSX + 32, mSY + 4 * 32, "Configure", font_nr_menu);
7024   }
7025   else
7026   {
7027     DrawText(mSX + 8 * 32, mSY + 3 * 32, "Keyboard ", font_nr_on);
7028     DrawText(mSX + 1 * 32, mSY + 4 * 32, "Customize", font_nr_menu);
7029   }
7030
7031   if (SCR_FIELDY >= SCR_FIELDY_DEFAULT)
7032     DrawText(mSX + 32, mSY + 5 * 32, "Actual Settings:", font_nr_info);
7033   else
7034     pos = 3;
7035
7036   drawCursorXY(1, pos + 0, IMG_MENU_BUTTON_LEFT);
7037   drawCursorXY(1, pos + 1, IMG_MENU_BUTTON_RIGHT);
7038   drawCursorXY(1, pos + 2, IMG_MENU_BUTTON_UP);
7039   drawCursorXY(1, pos + 3, IMG_MENU_BUTTON_DOWN);
7040
7041   DrawText(mSX + 2 * 32, mSY + (pos + 2) * 32, ":", font_nr_name);
7042   DrawText(mSX + 2 * 32, mSY + (pos + 3) * 32, ":", font_nr_name);
7043   DrawText(mSX + 2 * 32, mSY + (pos + 4) * 32, ":", font_nr_name);
7044   DrawText(mSX + 2 * 32, mSY + (pos + 5) * 32, ":", font_nr_name);
7045   DrawText(mSX + 1 * 32, mSY + (pos + 6) * 32, "Snap Field:", font_nr_name);
7046   DrawText(mSX + 1 * 32, mSY + (pos + 8) * 32, "Drop Element:", font_nr_name);
7047
7048   for (i = 0; i < 6; i++)
7049   {
7050     int ypos = (pos + 2) + i + (i > 3 ? i - 3 : 0);
7051
7052     DrawText(mSX + 3 * 32, mSY + ypos * 32,
7053              "              ", font_nr_on);
7054     DrawText(mSX + 3 * 32, mSY + ypos * 32,
7055              (setup.input[player_nr].use_joystick ?
7056               custom[i].text :
7057               getKeyNameFromKey(*custom[i].key)), font_nr_on);
7058   }
7059 }
7060
7061 static int input_player_nr = 0;
7062
7063 static void HandleSetupScreen_Input_Player(int step, int direction)
7064 {
7065   int old_player_nr = input_player_nr;
7066   int new_player_nr;
7067
7068   new_player_nr = old_player_nr + step * direction;
7069   if (new_player_nr < 0)
7070     new_player_nr = 0;
7071   if (new_player_nr > MAX_PLAYERS - 1)
7072     new_player_nr = MAX_PLAYERS - 1;
7073
7074   if (new_player_nr != old_player_nr)
7075   {
7076     input_player_nr = new_player_nr;
7077
7078     drawPlayerSetupInputInfo(input_player_nr, FALSE);
7079   }
7080 }
7081
7082 void HandleSetupScreen_Input(int mx, int my, int dx, int dy, int button)
7083 {
7084   static int choice = 0;
7085   int x = 0;
7086   int y = choice;
7087   int pos_start  = SETUPINPUT_SCREEN_POS_START;
7088   int pos_empty1 = SETUPINPUT_SCREEN_POS_EMPTY1;
7089   int pos_empty2 = SETUPINPUT_SCREEN_POS_EMPTY2;
7090   int pos_end    = SETUPINPUT_SCREEN_POS_END;
7091
7092   if (SCR_FIELDY < SCR_FIELDY_DEFAULT)
7093   {
7094     int i;
7095
7096     for (i = 0; setup_info_input[i].type != 0; i++)
7097     {
7098       // adjust menu structure according to skipped setup entries
7099       if (setup_info_input[i].type == TYPE_SKIPPABLE)
7100       {
7101         pos_empty2--;
7102         pos_end--;
7103       }
7104     }
7105   }
7106
7107   if (button == MB_MENU_INITIALIZE)
7108   {
7109     // input setup menu may have changed size due to graphics configuration
7110     if (choice >= pos_empty1)
7111       choice = pos_end;
7112
7113     drawPlayerSetupInputInfo(input_player_nr, (choice == 2));
7114
7115     DrawCursorAndText_Setup(choice, -1, TRUE);
7116
7117     return;
7118   }
7119   else if (button == MB_MENU_LEAVE)
7120   {
7121     setup_mode = SETUP_MODE_MAIN;
7122     DrawSetupScreen();
7123     InitJoysticks();
7124
7125     return;
7126   }
7127
7128   if (mx || my)         // mouse input
7129   {
7130     x = (mx - mSX) / 32;
7131     y = (my - mSY) / 32 - MENU_SCREEN_START_YPOS;
7132   }
7133   else if (dx || dy)    // keyboard input
7134   {
7135     if (dx && choice == 0)
7136       x = (dx < 0 ? 10 : 12);
7137     else if ((dx && choice == 1) ||
7138              (dx == -1 && choice == pos_end))
7139       button = MB_MENU_CHOICE;
7140     else if (dy)
7141       y = choice + dy;
7142
7143     if (y >= pos_empty1 && y <= pos_empty2)
7144       y = (dy > 0 ? pos_empty2 + 1 : pos_empty1 - 1);
7145   }
7146
7147   if (y == 0 && dx != 0 && button)
7148   {
7149     HandleSetupScreen_Input_Player(1, dx < 0 ? -1 : +1);
7150   }
7151   else if (IN_VIS_FIELD(x, y) &&        // (does not use "IN_VIS_MENU()" yet)
7152            y >= pos_start && y <= pos_end &&
7153            !(y >= pos_empty1 && y <= pos_empty2))
7154   {
7155     if (button)
7156     {
7157       if (y != choice)
7158       {
7159         DrawCursorAndText_Setup(choice, -1, FALSE);
7160         DrawCursorAndText_Setup(y, -1, TRUE);
7161
7162         drawPlayerSetupInputInfo(input_player_nr, (y == 2));
7163
7164         choice = y;
7165       }
7166     }
7167     else
7168     {
7169       if (y == 1)
7170       {
7171         char *device_name = setup.input[input_player_nr].joy.device_name;
7172
7173         if (!setup.input[input_player_nr].use_joystick)
7174         {
7175           int new_device_nr = (dx >= 0 ? 0 : MAX_PLAYERS - 1);
7176
7177           setJoystickDeviceToNr(device_name, new_device_nr);
7178           setup.input[input_player_nr].use_joystick = TRUE;
7179         }
7180         else
7181         {
7182           int device_nr = getJoystickNrFromDeviceName(device_name);
7183           int new_device_nr = device_nr + (dx >= 0 ? +1 : -1);
7184
7185           if (new_device_nr < 0 || new_device_nr >= MAX_PLAYERS)
7186             setup.input[input_player_nr].use_joystick = FALSE;
7187           else
7188             setJoystickDeviceToNr(device_name, new_device_nr);
7189         }
7190
7191         drawPlayerSetupInputInfo(input_player_nr, FALSE);
7192       }
7193       else if (y == 2)
7194       {
7195         if (setup.input[input_player_nr].use_joystick)
7196           ConfigureJoystick(input_player_nr);
7197         else
7198           CustomizeKeyboard(input_player_nr);
7199       }
7200       else if (y == pos_end)
7201       {
7202         InitJoysticks();
7203
7204         FadeSetLeaveMenu();
7205
7206         setup_mode = SETUP_MODE_MAIN;
7207         DrawSetupScreen();
7208       }
7209     }
7210   }
7211 }
7212
7213 static boolean CustomizeKeyboardMain(int player_nr)
7214 {
7215   int i;
7216   int step_nr;
7217   boolean finished = FALSE;
7218   static struct SetupKeyboardInfo custom_key;
7219   static struct
7220   {
7221     Key *key;
7222     char *text;
7223   } customize_step[] =
7224   {
7225     { &custom_key.left,  "Move Left"    },
7226     { &custom_key.right, "Move Right"   },
7227     { &custom_key.up,    "Move Up"      },
7228     { &custom_key.down,  "Move Down"    },
7229     { &custom_key.snap,  "Snap Field"   },
7230     { &custom_key.drop,  "Drop Element" }
7231   };
7232   int font_nr_old = FONT_VALUE_OLD;
7233   int font_nr_new = FONT_VALUE_1;
7234   boolean success = FALSE;
7235
7236   if (SCR_FIELDX < SCR_FIELDX_DEFAULT)
7237   {
7238     font_nr_old = FONT_VALUE_OLD_NARROW;
7239     font_nr_new = FONT_VALUE_NARROW;
7240   }
7241
7242   // read existing key bindings from player setup
7243   custom_key = setup.input[player_nr].key;
7244
7245   FadeSetEnterMenu();
7246   FadeOut(REDRAW_FIELD);
7247
7248   ClearField();
7249
7250   DrawTextSCentered(mSY - SY + 16, FONT_TITLE_1, "Keyboard Input");
7251
7252   step_nr = 0;
7253   DrawText(mSX, mSY + (2 + 2 * step_nr) * 32,
7254            customize_step[step_nr].text, FONT_INPUT_1_ACTIVE);
7255   DrawText(mSX, mSY + (2 + 2 * step_nr + 1) * 32,
7256            "Key:", FONT_INPUT_1_ACTIVE);
7257   DrawText(mSX + 4 * 32, mSY + (2 + 2 * step_nr + 1) * 32,
7258            getKeyNameFromKey(*customize_step[step_nr].key), font_nr_old);
7259
7260   FadeIn(REDRAW_FIELD);
7261
7262   while (!finished)
7263   {
7264     Event event;
7265
7266     if (NextValidEvent(&event))
7267     {
7268       switch (event.type)
7269       {
7270         case EVENT_KEYPRESS:
7271           {
7272             Key key = GetEventKey((KeyEvent *)&event, FALSE);
7273
7274             // press 'Escape' to abort and keep the old key bindings
7275             if (key == KSYM_Escape)
7276             {
7277               FadeSkipNextFadeIn();
7278
7279               finished = TRUE;
7280
7281               break;
7282             }
7283
7284             // press 'Enter' to keep the existing key binding
7285             if (key == KSYM_Return)
7286               key = *customize_step[step_nr].key;
7287
7288             // check if key already used
7289             for (i = 0; i < step_nr; i++)
7290               if (*customize_step[i].key == key)
7291                 break;
7292             if (i < step_nr)
7293               break;
7294
7295             // got new key binding
7296             *customize_step[step_nr].key = key;
7297             DrawText(mSX + 4 * 32, mSY + (2 + 2 * step_nr + 1) * 32,
7298                      "             ", font_nr_new);
7299             DrawText(mSX + 4 * 32, mSY + (2 + 2 * step_nr + 1) * 32,
7300                      getKeyNameFromKey(key), font_nr_new);
7301             step_nr++;
7302
7303             // un-highlight last query
7304             DrawText(mSX, mSY + (2 + 2 * (step_nr - 1)) * 32,
7305                      customize_step[step_nr - 1].text, FONT_MENU_1);
7306             DrawText(mSX, mSY + (2 + 2 * (step_nr - 1) + 1) * 32,
7307                      "Key:", FONT_MENU_1);
7308
7309             // all keys configured
7310             if (step_nr == 6)
7311             {
7312               finished = TRUE;
7313               success = TRUE;
7314
7315               break;
7316             }
7317
7318             // query next key binding
7319             DrawText(mSX, mSY + (2 + 2 * step_nr) * 32,
7320                      customize_step[step_nr].text, FONT_INPUT_1_ACTIVE);
7321             DrawText(mSX, mSY + (2 + 2 * step_nr + 1) * 32,
7322                      "Key:", FONT_INPUT_1_ACTIVE);
7323             DrawText(mSX + 4 * 32, mSY + (2 + 2 * step_nr + 1) * 32,
7324                      getKeyNameFromKey(*customize_step[step_nr].key),
7325                      font_nr_old);
7326           }
7327           break;
7328
7329         case EVENT_KEYRELEASE:
7330           key_joystick_mapping = 0;
7331           break;
7332
7333         default:
7334           HandleOtherEvents(&event);
7335           break;
7336       }
7337     }
7338
7339     BackToFront();
7340   }
7341
7342   // write new key bindings back to player setup, if successfully finished
7343   if (success)
7344     setup.input[player_nr].key = custom_key;
7345
7346   return success;
7347 }
7348
7349 void CustomizeKeyboard(int player_nr)
7350 {
7351   boolean success = CustomizeKeyboardMain(player_nr);
7352
7353   if (success)
7354   {
7355     int font_nr = FONT_TITLE_1;
7356     int font_height = getFontHeight(font_nr);
7357     int ypos1 = SYSIZE / 2 - font_height * 2;
7358     int ypos2 = SYSIZE / 2 - font_height * 1;
7359     unsigned int wait_frame_delay = 0;
7360     unsigned int wait_frame_delay_value = 2000;
7361
7362     ResetDelayCounter(&wait_frame_delay);
7363
7364     ClearField();
7365
7366     DrawTextSCentered(ypos1, font_nr, "Keyboard");
7367     DrawTextSCentered(ypos2, font_nr, "configured!");
7368
7369     while (!DelayReached(&wait_frame_delay, wait_frame_delay_value))
7370       BackToFront();
7371
7372     ClearEventQueue();
7373   }
7374
7375   DrawSetupScreen_Input();
7376 }
7377
7378 // game controller mapping generator by Gabriel Jacobo <gabomdq@gmail.com>
7379
7380 #define MARKER_BUTTON           1
7381 #define MARKER_AXIS_X           2
7382 #define MARKER_AXIS_Y           3
7383
7384 static boolean ConfigureJoystickMapButtonsAndAxes(SDL_Joystick *joystick)
7385 {
7386 #if defined(TARGET_SDL2)
7387   static boolean bitmaps_initialized = FALSE;
7388   boolean screen_initialized = FALSE;
7389   static Bitmap *controller, *button, *axis_x, *axis_y;
7390   char *name;
7391   boolean success = TRUE;
7392   boolean done = FALSE, next = FALSE;
7393   Event event;
7394   int alpha = 200, alpha_step = -1;
7395   int alpha_ticks = 0;
7396   char mapping[4096], temp[4096];
7397   int font_name = MENU_SETUP_FONT_TITLE;
7398   int font_info = MENU_SETUP_FONT_TEXT;
7399   int spacing_name = menu.line_spacing_setup[SETUP_MODE_INPUT];
7400   int spacing_line = menu.line_spacing_setup[SETUP_MODE_INPUT];
7401   int spacing_para = menu.paragraph_spacing_setup[SETUP_MODE_INPUT];
7402   int ystep_name = getMenuTextStep(spacing_name, font_name);
7403   int ystep_line = getMenuTextStep(spacing_line, font_info);
7404   int ystep_para = getMenuTextStep(spacing_para, font_info);
7405   int i, j;
7406
7407   struct
7408   {
7409     int x, y;
7410     int marker;
7411     char *field;
7412     int axis, button, hat, hat_value;
7413     char mapping[4096];
7414   }
7415   *step, *prev_step, steps[] =
7416   {
7417     { 356, 155, MARKER_BUTTON, "a",             },
7418     { 396, 122, MARKER_BUTTON, "b",             },
7419     { 320, 125, MARKER_BUTTON, "x",             },
7420     { 358,  95, MARKER_BUTTON, "y",             },
7421     { 162, 125, MARKER_BUTTON, "back",          },
7422     { 216, 125, MARKER_BUTTON, "guide",         },
7423     { 271, 125, MARKER_BUTTON, "start",         },
7424     { 110, 200, MARKER_BUTTON, "dpleft",        },
7425     { 146, 228, MARKER_BUTTON, "dpdown",        },
7426     { 178, 200, MARKER_BUTTON, "dpright",       },
7427     { 146, 172, MARKER_BUTTON, "dpup",          },
7428     {  50,  40, MARKER_BUTTON, "leftshoulder",  },
7429     {  88, -10, MARKER_AXIS_Y, "lefttrigger",   },
7430     { 382,  40, MARKER_BUTTON, "rightshoulder", },
7431     { 346, -10, MARKER_AXIS_Y, "righttrigger",  },
7432     {  73, 141, MARKER_BUTTON, "leftstick",     },
7433     { 282, 210, MARKER_BUTTON, "rightstick",    },
7434     {  73, 141, MARKER_AXIS_X, "leftx",         },
7435     {  73, 141, MARKER_AXIS_Y, "lefty",         },
7436     { 282, 210, MARKER_AXIS_X, "rightx",        },
7437     { 282, 210, MARKER_AXIS_Y, "righty",        },
7438   };
7439
7440   unsigned int event_frame_delay = 0;
7441   unsigned int event_frame_delay_value = GAME_FRAME_DELAY;
7442
7443   ResetDelayCounter(&event_frame_delay);
7444
7445   if (!bitmaps_initialized)
7446   {
7447     controller = LoadCustomImage("joystick/controller.png");
7448     button     = LoadCustomImage("joystick/button.png");
7449     axis_x     = LoadCustomImage("joystick/axis_x.png");
7450     axis_y     = LoadCustomImage("joystick/axis_y.png");
7451
7452     bitmaps_initialized = TRUE;
7453   }
7454
7455   name = getFormattedJoystickName(SDL_JoystickName(joystick));
7456
7457 #if DEBUG_JOYSTICKS
7458   // print info about the joystick we are watching
7459   Error(ERR_DEBUG, "watching joystick %d: (%s)\n",
7460         SDL_JoystickInstanceID(joystick), name);
7461   Error(ERR_DEBUG, "joystick has %d axes, %d hats, %d balls, and %d buttons\n",
7462         SDL_JoystickNumAxes(joystick), SDL_JoystickNumHats(joystick),
7463         SDL_JoystickNumBalls(joystick), SDL_JoystickNumButtons(joystick));
7464 #endif
7465
7466   // initialize mapping with GUID and name
7467   SDL_JoystickGetGUIDString(SDL_JoystickGetGUID(joystick), temp, sizeof(temp));
7468
7469   snprintf(mapping, sizeof(mapping), "%s,%s,platform:%s,",
7470            temp, name, SDL_GetPlatform());
7471
7472   // loop through all steps (buttons and axes), getting joystick events
7473   for (i = 0; i < SDL_arraysize(steps) && !done;)
7474   {
7475     Bitmap *marker = button;    // initialize with reliable default value
7476
7477     step = &steps[i];
7478     strcpy(step->mapping, mapping);
7479     step->axis = -1;
7480     step->button = -1;
7481     step->hat = -1;
7482     step->hat_value = -1;
7483
7484     marker = (step->marker == MARKER_BUTTON ? button :
7485               step->marker == MARKER_AXIS_X ? axis_x :
7486               step->marker == MARKER_AXIS_Y ? axis_y : marker);
7487
7488     next = FALSE;
7489
7490     while (!done && !next)
7491     {
7492       alpha += alpha_step * (int)(SDL_GetTicks() - alpha_ticks) / 5;
7493       alpha_ticks = SDL_GetTicks();
7494
7495       if (alpha >= 255)
7496       {
7497         alpha = 255;
7498         alpha_step = -1;
7499       }
7500       else if (alpha < 128)
7501       {
7502         alpha = 127;
7503         alpha_step = 1;
7504       }
7505
7506       int controller_x = SX + (SXSIZE - controller->width) / 2;
7507       int controller_y = SY + ystep_line;
7508
7509       int marker_x = controller_x + step->x;
7510       int marker_y = controller_y + step->y;
7511
7512       int ystart1 = mSY - 2 * SY + controller_y + controller->height;
7513       int ystart2 = ystart1 + ystep_name + ystep_line;
7514
7515       ClearField();
7516
7517       DrawTextSCentered(ystart1, font_name, name);
7518
7519       DrawTextSCentered(ystart2, font_info,
7520                         "Press buttons and move axes on");
7521       ystart2 += ystep_line;
7522       DrawTextSCentered(ystart2, font_info,
7523                         "your controller when indicated.");
7524       ystart2 += ystep_line;
7525       DrawTextSCentered(ystart2, font_info,
7526                         "(Your controller may look different.)");
7527       ystart2 += ystep_para;
7528
7529 #if defined(PLATFORM_ANDROID)
7530       DrawTextSCentered(ystart2, font_info,
7531                         "To correct a mistake,");
7532       ystart2 += ystep_line;
7533       DrawTextSCentered(ystart2, font_info,
7534                         "press the 'back' button.");
7535       ystart2 += ystep_line;
7536       DrawTextSCentered(ystart2, font_info,
7537                         "To skip a button or axis,");
7538       ystart2 += ystep_line;
7539       DrawTextSCentered(ystart2, font_info,
7540                         "press the 'menu' button.");
7541 #else
7542       DrawTextSCentered(ystart2, font_info,
7543                         "To correct a mistake,");
7544       ystart2 += ystep_line;
7545       DrawTextSCentered(ystart2, font_info,
7546                         "press the 'backspace' key.");
7547       ystart2 += ystep_line;
7548       DrawTextSCentered(ystart2, font_info,
7549                         "To skip a button or axis,");
7550       ystart2 += ystep_line;
7551       DrawTextSCentered(ystart2, font_info,
7552                         "press the 'return' key.");
7553       ystart2 += ystep_line;
7554       DrawTextSCentered(ystart2, font_info,
7555                         "To exit, press the 'escape' key.");
7556 #endif
7557
7558       BlitBitmapMasked(controller, drawto, 0, 0,
7559                        controller->width, controller->height,
7560                        controller_x, controller_y);
7561
7562       SDL_SetSurfaceBlendMode(marker->surface_masked, SDL_BLENDMODE_BLEND);
7563       SDL_SetSurfaceAlphaMod(marker->surface_masked, alpha);
7564
7565       BlitBitmapMasked(marker, drawto, 0, 0,
7566                        marker->width, marker->height,
7567                        marker_x, marker_y);
7568
7569       if (!screen_initialized)
7570         FadeIn(REDRAW_FIELD);
7571       else
7572         BackToFront();
7573
7574       screen_initialized = TRUE;
7575
7576       while (NextValidEvent(&event))
7577       {
7578         switch (event.type)
7579         {
7580           case SDL_JOYAXISMOTION:
7581             if (event.jaxis.value > 20000 ||
7582                 event.jaxis.value < -20000)
7583             {
7584               for (j = 0; j < i; j++)
7585                 if (steps[j].axis == event.jaxis.axis)
7586                   break;
7587
7588               if (j == i)
7589               {
7590                 if (step->marker != MARKER_AXIS_X &&
7591                     step->marker != MARKER_AXIS_Y)
7592                   break;
7593
7594                 step->axis = event.jaxis.axis;
7595                 strcat(mapping, step->field);
7596                 snprintf(temp, sizeof(temp), ":a%u,", event.jaxis.axis);
7597                 strcat(mapping, temp);
7598                 i++;
7599                 next = TRUE;
7600               }
7601             }
7602
7603             break;
7604
7605           case SDL_JOYHATMOTION:
7606             // ignore centering; we're probably just coming back
7607             // to the center from the previous item we set
7608             if (event.jhat.value == SDL_HAT_CENTERED)
7609               break;
7610
7611             for (j = 0; j < i; j++)
7612               if (steps[j].hat == event.jhat.hat &&
7613                   steps[j].hat_value == event.jhat.value)
7614                 break;
7615
7616             if (j == i)
7617             {
7618               step->hat = event.jhat.hat;
7619               step->hat_value = event.jhat.value;
7620               strcat(mapping, step->field);
7621               snprintf(temp, sizeof(temp), ":h%u.%u,",
7622                        event.jhat.hat, event.jhat.value );
7623               strcat(mapping, temp);
7624               i++;
7625               next = TRUE;
7626             }
7627
7628             break;
7629
7630           case SDL_JOYBALLMOTION:
7631             break;
7632
7633           case SDL_JOYBUTTONUP:
7634             for (j = 0; j < i; j++)
7635               if (steps[j].button == event.jbutton.button)
7636                 break;
7637
7638             if (j == i)
7639             {
7640               step->button = event.jbutton.button;
7641               strcat(mapping, step->field);
7642               snprintf(temp, sizeof(temp), ":b%u,", event.jbutton.button);
7643               strcat(mapping, temp);
7644               i++;
7645               next = TRUE;
7646             }
7647
7648             break;
7649
7650           case SDL_FINGERDOWN:
7651           case SDL_MOUSEBUTTONDOWN:
7652             // skip this step
7653             i++;
7654             next = TRUE;
7655
7656             break;
7657
7658           case SDL_KEYDOWN:
7659             if (event.key.keysym.sym == KSYM_BackSpace ||
7660                 event.key.keysym.sym == KSYM_Back)
7661             {
7662               if (i == 0)
7663               {
7664                 // leave screen
7665                 success = FALSE;
7666                 done = TRUE;
7667
7668                 break;
7669               }
7670
7671               // undo this step
7672               prev_step = &steps[i - 1];
7673               strcpy(mapping, prev_step->mapping);
7674               i--;
7675               next = TRUE;
7676
7677               break;
7678             }
7679
7680             if (event.key.keysym.sym == KSYM_space ||
7681                 event.key.keysym.sym == KSYM_Return ||
7682                 event.key.keysym.sym == KSYM_Menu)
7683             {
7684               // skip this step
7685               i++;
7686               next = TRUE;
7687
7688               break;
7689             }
7690
7691             if (event.key.keysym.sym == KSYM_Escape)
7692             {
7693               // leave screen
7694               success = FALSE;
7695               done = TRUE;
7696             }
7697
7698             break;
7699
7700           case SDL_QUIT:
7701             program.exit_function(0);
7702             break;
7703
7704           default:
7705             break;
7706         }
7707
7708         // do not handle events for longer than standard frame delay period
7709         if (DelayReached(&event_frame_delay, event_frame_delay_value))
7710           break;
7711       }
7712     }
7713   }
7714
7715   if (success)
7716   {
7717 #if DEBUG_JOYSTICKS
7718     Error(ERR_DEBUG, "New game controller mapping:\n\n%s\n\n", mapping);
7719 #endif
7720
7721     // activate mapping for this game
7722     SDL_GameControllerAddMapping(mapping);
7723
7724     // save mapping to personal mappings
7725     SaveSetup_AddGameControllerMapping(mapping);
7726   }
7727
7728   // wait until the last pending event was removed from event queue
7729   while (NextValidEvent(&event));
7730
7731   return success;
7732 #else
7733   return TRUE;
7734 #endif
7735 }
7736
7737 static int ConfigureJoystickMain(int player_nr)
7738 {
7739   char *device_name = setup.input[player_nr].joy.device_name;
7740   int joystick_nr = getJoystickNrFromDeviceName(device_name);
7741   boolean joystick_active = CheckJoystickOpened(joystick_nr);
7742   int success = FALSE;
7743   int i;
7744
7745   if (joystick.status == JOYSTICK_NOT_AVAILABLE)
7746     return JOYSTICK_NOT_AVAILABLE;
7747
7748   if (!joystick_active || !setup.input[player_nr].use_joystick)
7749     return JOYSTICK_NOT_AVAILABLE;
7750
7751   FadeSetEnterMenu();
7752   FadeOut(REDRAW_FIELD);
7753
7754   // close all joystick devices (potentially opened as game controllers)
7755   for (i = 0; i < SDL_NumJoysticks(); i++)
7756     SDLCloseJoystick(i);
7757
7758   // open joystick device as plain joystick to configure as game controller
7759   SDL_Joystick *joystick = SDL_JoystickOpen(joystick_nr);
7760
7761   // as the joystick was successfully opened before, this should not happen
7762   if (joystick == NULL)
7763     return FALSE;
7764
7765   // create new game controller mapping (buttons and axes) for joystick device
7766   success = ConfigureJoystickMapButtonsAndAxes(joystick);
7767
7768   // close joystick (and maybe re-open as configured game controller later)
7769   SDL_JoystickClose(joystick);
7770
7771   // re-open all joystick devices (potentially as game controllers)
7772   for (i = 0; i < SDL_NumJoysticks(); i++)
7773     SDLOpenJoystick(i);
7774
7775   // clear all joystick input actions for all joystick devices
7776   SDLClearJoystickState();
7777
7778   return (success ? JOYSTICK_CONFIGURED : JOYSTICK_NOT_CONFIGURED);
7779 }
7780
7781 void ConfigureJoystick(int player_nr)
7782 {
7783   boolean state = ConfigureJoystickMain(player_nr);
7784
7785   if (state != JOYSTICK_NOT_CONFIGURED)
7786   {
7787     boolean success = (state == JOYSTICK_CONFIGURED);
7788     char message1[MAX_OUTPUT_LINESIZE + 1];
7789     char *message2 = (success ? "configured!" : "not available!");
7790     char *device_name = setup.input[player_nr].joy.device_name;
7791     int nr = getJoystickNrFromDeviceName(device_name) + 1;
7792     int font_nr = FONT_TITLE_1;
7793     int font_height = getFontHeight(font_nr);
7794     int ypos1 = SYSIZE / 2 - font_height * 2;
7795     int ypos2 = SYSIZE / 2 - font_height * 1;
7796     unsigned int wait_frame_delay = 0;
7797     unsigned int wait_frame_delay_value = 2000;
7798
7799     ResetDelayCounter(&wait_frame_delay);
7800
7801     ClearField();
7802
7803     sprintf(message1, "Joystick %d", nr);
7804
7805     DrawTextSCentered(ypos1, font_nr, message1);
7806     DrawTextSCentered(ypos2, font_nr, message2);
7807
7808     while (!DelayReached(&wait_frame_delay, wait_frame_delay_value))
7809       BackToFront();
7810
7811     ClearEventQueue();
7812   }
7813
7814   DrawSetupScreen_Input();
7815 }
7816
7817 static boolean ConfigureVirtualButtonsMain(void)
7818 {
7819   static char *customize_step_text[] =
7820   {
7821     "Move Left",
7822     "Move Right",
7823     "Move Up",
7824     "Move Down",
7825     "Snap Field",
7826     "Drop Element"
7827   };
7828   char grid_button[] =
7829   {
7830     CHAR_GRID_BUTTON_LEFT,
7831     CHAR_GRID_BUTTON_RIGHT,
7832     CHAR_GRID_BUTTON_UP,
7833     CHAR_GRID_BUTTON_DOWN,
7834     CHAR_GRID_BUTTON_SNAP,
7835     CHAR_GRID_BUTTON_DROP
7836   };
7837   int font_nr = FONT_INPUT_1_ACTIVE;
7838   int font_height = getFontHeight(font_nr);
7839   int ypos1 = SYSIZE / 2 - font_height * 2;
7840   int ypos2 = SYSIZE / 2 - font_height * 1;
7841   boolean success = FALSE;
7842   boolean finished = FALSE;
7843   int step_nr = 0;
7844   char grid_button_draw = CHAR_GRID_BUTTON_NONE;
7845   char grid_button_old[MAX_GRID_XSIZE][MAX_GRID_YSIZE];
7846   char grid_button_tmp[MAX_GRID_XSIZE][MAX_GRID_YSIZE];
7847   boolean set_grid_button = FALSE;
7848   int nr = GRID_ACTIVE_NR();
7849   int x, y;
7850
7851   for (x = 0; x < MAX_GRID_XSIZE; x++)
7852     for (y = 0; y < MAX_GRID_YSIZE; y++)
7853       grid_button_old[x][y] = grid_button_tmp[x][y] = overlay.grid_button[x][y];
7854
7855   overlay.grid_button_highlight = grid_button[step_nr];
7856
7857   FadeSetEnterMenu();
7858   FadeOut(REDRAW_FIELD);
7859
7860   ClearField();
7861
7862   DrawTextSCentered(mSY - SY + 16, FONT_TITLE_1, "Virtual Buttons");
7863   DrawTextSCentered(ypos1, font_nr, "Select tiles to");
7864   DrawTextSCentered(ypos2, font_nr, customize_step_text[step_nr]);
7865
7866   FadeIn(REDRAW_FIELD);
7867
7868   SetOverlayShowGrid(TRUE);
7869
7870   while (!finished)
7871   {
7872     Event event;
7873
7874     while (NextValidEvent(&event))
7875     {
7876       switch (event.type)
7877       {
7878         case EVENT_KEYPRESS:
7879           {
7880             Key key = GetEventKey((KeyEvent *)&event, FALSE);
7881
7882             // press 'Escape' to abort and keep the old key bindings
7883             if (key == KSYM_Escape)
7884             {
7885               for (x = 0; x < MAX_GRID_XSIZE; x++)
7886                 for (y = 0; y < MAX_GRID_YSIZE; y++)
7887                   overlay.grid_button[x][y] = grid_button_old[x][y];
7888
7889               FadeSkipNextFadeIn();
7890
7891               finished = TRUE;
7892
7893               break;
7894             }
7895
7896             // press 'Enter' to keep the existing key binding
7897             if (key == KSYM_Return ||
7898 #if defined(TARGET_SDL2)
7899                 key == KSYM_Menu ||
7900 #endif
7901                 key == KSYM_space)
7902             {
7903               step_nr++;
7904             }
7905             else if (key == KSYM_BackSpace
7906 #if defined(TARGET_SDL2)
7907                      ||
7908                      key == KSYM_Back
7909 #endif
7910                      )
7911             {
7912               if (step_nr == 0)
7913               {
7914                 FadeSkipNextFadeIn();
7915
7916                 finished = TRUE;
7917
7918                 break;
7919               }
7920
7921               step_nr--;
7922             }
7923             else
7924             {
7925               break;
7926             }
7927
7928             // all virtual buttons configured
7929             if (step_nr == 6)
7930             {
7931               finished = TRUE;
7932               success = TRUE;
7933
7934               break;
7935             }
7936
7937             for (x = 0; x < MAX_GRID_XSIZE; x++)
7938               for (y = 0; y < MAX_GRID_YSIZE; y++)
7939                 grid_button_tmp[x][y] = overlay.grid_button[x][y];
7940
7941             overlay.grid_button_highlight = grid_button[step_nr];
7942
7943             // query next virtual button
7944
7945             ClearField();
7946
7947             DrawTextSCentered(mSY - SY + 16, FONT_TITLE_1, "Virtual Buttons");
7948             DrawTextSCentered(ypos1, font_nr, "Select tiles to");
7949             DrawTextSCentered(ypos2, font_nr, customize_step_text[step_nr]);
7950           }
7951           break;
7952
7953         case EVENT_KEYRELEASE:
7954           key_joystick_mapping = 0;
7955           break;
7956
7957         case EVENT_BUTTONPRESS:
7958         case EVENT_BUTTONRELEASE:
7959           {
7960             ButtonEvent *button = (ButtonEvent *)&event;
7961
7962             button->x += video.screen_xoffset;
7963             button->y += video.screen_yoffset;
7964
7965             x = button->x * overlay.grid_xsize / video.screen_width;
7966             y = button->y * overlay.grid_ysize / video.screen_height;
7967
7968             if (button->type == EVENT_BUTTONPRESS)
7969             {
7970               button_status = button->button;
7971
7972               grid_button_draw =
7973                 (overlay.grid_button[x][y] != grid_button[step_nr] ?
7974                  grid_button[step_nr] : CHAR_GRID_BUTTON_NONE);
7975
7976               set_grid_button = TRUE;
7977             }
7978             else
7979             {
7980               button_status = MB_RELEASED;
7981             }
7982           }
7983           break;
7984
7985         case EVENT_MOTIONNOTIFY:
7986           {
7987             MotionEvent *motion = (MotionEvent *)&event;
7988
7989             motion->x += video.screen_xoffset;
7990             motion->y += video.screen_yoffset;
7991
7992             x = motion->x * overlay.grid_xsize / video.screen_width;
7993             y = motion->y * overlay.grid_ysize / video.screen_height;
7994
7995             set_grid_button = TRUE;
7996           }
7997           break;
7998
7999 #if defined(TARGET_SDL2)
8000         case SDL_WINDOWEVENT:
8001           HandleWindowEvent((WindowEvent *) &event);
8002
8003           // check if device has been rotated
8004           if (nr != GRID_ACTIVE_NR())
8005           {
8006             nr = GRID_ACTIVE_NR();
8007
8008             for (x = 0; x < MAX_GRID_XSIZE; x++)
8009               for (y = 0; y < MAX_GRID_YSIZE; y++)
8010                 grid_button_old[x][y] = grid_button_tmp[x][y] =
8011                   overlay.grid_button[x][y];
8012           }
8013
8014           break;
8015
8016         case SDL_APP_WILLENTERBACKGROUND:
8017         case SDL_APP_DIDENTERBACKGROUND:
8018         case SDL_APP_WILLENTERFOREGROUND:
8019         case SDL_APP_DIDENTERFOREGROUND:
8020           HandlePauseResumeEvent((PauseResumeEvent *) &event);
8021           break;
8022 #endif
8023
8024         default:
8025           HandleOtherEvents(&event);
8026           break;
8027       }
8028
8029       if (set_grid_button)
8030       {
8031         overlay.grid_button[x][y] =
8032           (grid_button_draw != CHAR_GRID_BUTTON_NONE ? grid_button_draw :
8033            grid_button_tmp[x][y] == grid_button[step_nr] ? CHAR_GRID_BUTTON_NONE :
8034            grid_button_tmp[x][y]);
8035
8036         set_grid_button = FALSE;
8037       }
8038     }
8039
8040     BackToFront();
8041   }
8042
8043   for (x = 0; x < MAX_GRID_XSIZE; x++)
8044     for (y = 0; y < MAX_GRID_YSIZE; y++)
8045       setup.touch.grid_button[nr][x][y] = overlay.grid_button[x][y];
8046
8047   overlay.grid_button_highlight = CHAR_GRID_BUTTON_NONE;
8048
8049   SetOverlayShowGrid(FALSE);
8050
8051   return success;
8052 }
8053
8054 void ConfigureVirtualButtons(void)
8055 {
8056   boolean success = ConfigureVirtualButtonsMain();
8057
8058   if (success)
8059   {
8060     int font_nr = FONT_TITLE_1;
8061     int font_height = getFontHeight(font_nr);
8062     int ypos1 = SYSIZE / 2 - font_height * 2;
8063     int ypos2 = SYSIZE / 2 - font_height * 1;
8064     unsigned int wait_frame_delay = 0;
8065     unsigned int wait_frame_delay_value = 2000;
8066
8067     ResetDelayCounter(&wait_frame_delay);
8068
8069     ClearField();
8070
8071     DrawTextSCentered(ypos1, font_nr, "Virtual buttons");
8072     DrawTextSCentered(ypos2, font_nr, "configured!");
8073
8074     while (!DelayReached(&wait_frame_delay, wait_frame_delay_value))
8075       BackToFront();
8076
8077     ClearEventQueue();
8078   }
8079 }
8080
8081 void DrawSetupScreen(void)
8082 {
8083   if (setup_mode == SETUP_MODE_INPUT)
8084     DrawSetupScreen_Input();
8085   else if (setup_mode == SETUP_MODE_CHOOSE_GAME_SPEED)
8086     DrawChooseTree(&game_speed_current);
8087   else if (setup_mode == SETUP_MODE_CHOOSE_SCROLL_DELAY)
8088     DrawChooseTree(&scroll_delay_current);
8089   else if (setup_mode == SETUP_MODE_CHOOSE_SNAPSHOT_MODE)
8090     DrawChooseTree(&snapshot_mode_current);
8091   else if (setup_mode == SETUP_MODE_CHOOSE_WINDOW_SIZE)
8092     DrawChooseTree(&window_size_current);
8093   else if (setup_mode == SETUP_MODE_CHOOSE_SCALING_TYPE)
8094     DrawChooseTree(&scaling_type_current);
8095   else if (setup_mode == SETUP_MODE_CHOOSE_RENDERING)
8096     DrawChooseTree(&rendering_mode_current);
8097   else if (setup_mode == SETUP_MODE_CHOOSE_VSYNC)
8098     DrawChooseTree(&vsync_mode_current);
8099   else if (setup_mode == SETUP_MODE_CHOOSE_GRAPHICS)
8100     DrawChooseTree(&artwork.gfx_current);
8101   else if (setup_mode == SETUP_MODE_CHOOSE_SOUNDS)
8102     DrawChooseTree(&artwork.snd_current);
8103   else if (setup_mode == SETUP_MODE_CHOOSE_MUSIC)
8104     DrawChooseTree(&artwork.mus_current);
8105   else if (setup_mode == SETUP_MODE_CHOOSE_VOLUME_SIMPLE)
8106     DrawChooseTree(&volume_simple_current);
8107   else if (setup_mode == SETUP_MODE_CHOOSE_VOLUME_LOOPS)
8108     DrawChooseTree(&volume_loops_current);
8109   else if (setup_mode == SETUP_MODE_CHOOSE_VOLUME_MUSIC)
8110     DrawChooseTree(&volume_music_current);
8111   else if (setup_mode == SETUP_MODE_CHOOSE_TOUCH_CONTROL)
8112     DrawChooseTree(&touch_control_current);
8113   else if (setup_mode == SETUP_MODE_CHOOSE_MOVE_DISTANCE)
8114     DrawChooseTree(&move_distance_current);
8115   else if (setup_mode == SETUP_MODE_CHOOSE_DROP_DISTANCE)
8116     DrawChooseTree(&drop_distance_current);
8117   else if (setup_mode == SETUP_MODE_CHOOSE_TRANSPARENCY)
8118     DrawChooseTree(&transparency_current);
8119   else if (setup_mode == SETUP_MODE_CHOOSE_GRID_XSIZE_0)
8120     DrawChooseTree(&grid_size_current[0][0]);
8121   else if (setup_mode == SETUP_MODE_CHOOSE_GRID_YSIZE_0)
8122     DrawChooseTree(&grid_size_current[0][1]);
8123   else if (setup_mode == SETUP_MODE_CHOOSE_GRID_XSIZE_1)
8124     DrawChooseTree(&grid_size_current[1][0]);
8125   else if (setup_mode == SETUP_MODE_CHOOSE_GRID_YSIZE_1)
8126     DrawChooseTree(&grid_size_current[1][1]);
8127   else
8128     DrawSetupScreen_Generic();
8129
8130   PlayMenuSoundsAndMusic();
8131 }
8132
8133 void RedrawSetupScreenAfterFullscreenToggle(void)
8134 {
8135   if (setup_mode == SETUP_MODE_GRAPHICS ||
8136       setup_mode == SETUP_MODE_CHOOSE_WINDOW_SIZE)
8137   {
8138     // update list selection from "setup.window_scaling_percent"
8139     execSetupGraphics_setWindowSizes(TRUE);
8140
8141     DrawSetupScreen();
8142   }
8143 }
8144
8145 void RedrawSetupScreenAfterScreenRotation(int nr)
8146 {
8147   int x, y;
8148
8149   if (setup_mode == SETUP_MODE_TOUCH)
8150   {
8151     // update virtual button settings (depending on screen orientation)
8152     DrawSetupScreen();
8153   }
8154   else if (setup_mode == SETUP_MODE_CONFIG_VIRT_BUTTONS)
8155   {
8156     // save already configured virtual buttons
8157     for (x = 0; x < MAX_GRID_XSIZE; x++)
8158       for (y = 0; y < MAX_GRID_YSIZE; y++)
8159         setup.touch.grid_button[nr][x][y] = overlay.grid_button[x][y];
8160   }
8161 }
8162
8163 void HandleSetupScreen(int mx, int my, int dx, int dy, int button)
8164 {
8165   if (setup_mode == SETUP_MODE_INPUT)
8166     HandleSetupScreen_Input(mx, my, dx, dy, button);
8167   else if (setup_mode == SETUP_MODE_CHOOSE_GAME_SPEED)
8168     HandleChooseTree(mx, my, dx, dy, button, &game_speed_current);
8169   else if (setup_mode == SETUP_MODE_CHOOSE_SCROLL_DELAY)
8170     HandleChooseTree(mx, my, dx, dy, button, &scroll_delay_current);
8171   else if (setup_mode == SETUP_MODE_CHOOSE_SNAPSHOT_MODE)
8172     HandleChooseTree(mx, my, dx, dy, button, &snapshot_mode_current);
8173   else if (setup_mode == SETUP_MODE_CHOOSE_WINDOW_SIZE)
8174     HandleChooseTree(mx, my, dx, dy, button, &window_size_current);
8175   else if (setup_mode == SETUP_MODE_CHOOSE_SCALING_TYPE)
8176     HandleChooseTree(mx, my, dx, dy, button, &scaling_type_current);
8177   else if (setup_mode == SETUP_MODE_CHOOSE_RENDERING)
8178     HandleChooseTree(mx, my, dx, dy, button, &rendering_mode_current);
8179   else if (setup_mode == SETUP_MODE_CHOOSE_VSYNC)
8180     HandleChooseTree(mx, my, dx, dy, button, &vsync_mode_current);
8181   else if (setup_mode == SETUP_MODE_CHOOSE_GRAPHICS)
8182     HandleChooseTree(mx, my, dx, dy, button, &artwork.gfx_current);
8183   else if (setup_mode == SETUP_MODE_CHOOSE_SOUNDS)
8184     HandleChooseTree(mx, my, dx, dy, button, &artwork.snd_current);
8185   else if (setup_mode == SETUP_MODE_CHOOSE_MUSIC)
8186     HandleChooseTree(mx, my, dx, dy, button, &artwork.mus_current);
8187   else if (setup_mode == SETUP_MODE_CHOOSE_VOLUME_SIMPLE)
8188     HandleChooseTree(mx, my, dx, dy, button, &volume_simple_current);
8189   else if (setup_mode == SETUP_MODE_CHOOSE_VOLUME_LOOPS)
8190     HandleChooseTree(mx, my, dx, dy, button, &volume_loops_current);
8191   else if (setup_mode == SETUP_MODE_CHOOSE_VOLUME_MUSIC)
8192     HandleChooseTree(mx, my, dx, dy, button, &volume_music_current);
8193   else if (setup_mode == SETUP_MODE_CHOOSE_TOUCH_CONTROL)
8194     HandleChooseTree(mx, my, dx, dy, button, &touch_control_current);
8195   else if (setup_mode == SETUP_MODE_CHOOSE_MOVE_DISTANCE)
8196     HandleChooseTree(mx, my, dx, dy, button, &move_distance_current);
8197   else if (setup_mode == SETUP_MODE_CHOOSE_DROP_DISTANCE)
8198     HandleChooseTree(mx, my, dx, dy, button, &drop_distance_current);
8199   else if (setup_mode == SETUP_MODE_CHOOSE_TRANSPARENCY)
8200     HandleChooseTree(mx, my, dx, dy, button, &transparency_current);
8201   else if (setup_mode == SETUP_MODE_CHOOSE_GRID_XSIZE_0)
8202     HandleChooseTree(mx, my, dx, dy, button, &grid_size_current[0][0]);
8203   else if (setup_mode == SETUP_MODE_CHOOSE_GRID_YSIZE_0)
8204     HandleChooseTree(mx, my, dx, dy, button, &grid_size_current[0][1]);
8205   else if (setup_mode == SETUP_MODE_CHOOSE_GRID_XSIZE_1)
8206     HandleChooseTree(mx, my, dx, dy, button, &grid_size_current[1][0]);
8207   else if (setup_mode == SETUP_MODE_CHOOSE_GRID_YSIZE_1)
8208     HandleChooseTree(mx, my, dx, dy, button, &grid_size_current[1][1]);
8209   else
8210     HandleSetupScreen_Generic(mx, my, dx, dy, button);
8211 }
8212
8213 void HandleGameActions(void)
8214 {
8215   if (setup.ask_on_game_over)
8216     CheckGameOver();
8217
8218   if (game.restart_game_message != NULL)
8219   {
8220     RequestRestartGame(game.restart_game_message);
8221
8222     return;
8223   }
8224
8225   if (game_status != GAME_MODE_PLAYING)
8226     return;
8227
8228   GameActions();        // main game loop
8229
8230   if (tape.auto_play && !tape.playing)
8231     AutoPlayTape();     // continue automatically playing next tape
8232 }
8233
8234
8235 // ---------- new screen button stuff --------------------------------------
8236
8237 static void getScreenMenuButtonPos(int *x, int *y, int gadget_id)
8238 {
8239   switch (gadget_id)
8240   {
8241     case SCREEN_CTRL_ID_PREV_LEVEL:
8242       *x = mSX + GDI_ACTIVE_POS(menu.main.button.prev_level.x);
8243       *y = mSY + GDI_ACTIVE_POS(menu.main.button.prev_level.y);
8244       break;
8245
8246     case SCREEN_CTRL_ID_NEXT_LEVEL:
8247       *x = mSX + GDI_ACTIVE_POS(menu.main.button.next_level.x);
8248       *y = mSY + GDI_ACTIVE_POS(menu.main.button.next_level.y);
8249       break;
8250
8251     case SCREEN_CTRL_ID_PREV_PLAYER:
8252       *x = mSX + TILEX * 10;
8253       *y = mSY + TILEY * MENU_SCREEN_START_YPOS;
8254       break;
8255
8256     case SCREEN_CTRL_ID_NEXT_PLAYER:
8257       *x = mSX + TILEX * 12;
8258       *y = mSY + TILEY * MENU_SCREEN_START_YPOS;
8259       break;
8260
8261     case SCREEN_CTRL_ID_INSERT_SOLUTION:
8262       *x = mSX + GDI_ACTIVE_POS(menu.main.button.insert_solution.x);
8263       *y = mSY + GDI_ACTIVE_POS(menu.main.button.insert_solution.y);
8264       break;
8265
8266     case SCREEN_CTRL_ID_PLAY_SOLUTION:
8267       *x = mSX + GDI_ACTIVE_POS(menu.main.button.play_solution.x);
8268       *y = mSY + GDI_ACTIVE_POS(menu.main.button.play_solution.y);
8269       break;
8270
8271     default:
8272       Error(ERR_EXIT, "unknown gadget ID %d", gadget_id);
8273   }
8274 }
8275
8276 static struct
8277 {
8278   int gfx_unpressed, gfx_pressed;
8279   void (*get_gadget_position)(int *, int *, int);
8280   int gadget_id;
8281   int screen_mask;
8282   char *infotext;
8283 } menubutton_info[NUM_SCREEN_MENUBUTTONS] =
8284 {
8285   {
8286     IMG_MENU_BUTTON_PREV_LEVEL, IMG_MENU_BUTTON_PREV_LEVEL_ACTIVE,
8287     getScreenMenuButtonPos,
8288     SCREEN_CTRL_ID_PREV_LEVEL,
8289     SCREEN_MASK_MAIN,
8290     "last level"
8291   },
8292   {
8293     IMG_MENU_BUTTON_NEXT_LEVEL, IMG_MENU_BUTTON_NEXT_LEVEL_ACTIVE,
8294     getScreenMenuButtonPos,
8295     SCREEN_CTRL_ID_NEXT_LEVEL,
8296     SCREEN_MASK_MAIN,
8297     "next level"
8298   },
8299   {
8300     IMG_MENU_BUTTON_LEFT, IMG_MENU_BUTTON_LEFT_ACTIVE,
8301     getScreenMenuButtonPos,
8302     SCREEN_CTRL_ID_PREV_PLAYER,
8303     SCREEN_MASK_INPUT,
8304     "last player"
8305   },
8306   {
8307     IMG_MENU_BUTTON_RIGHT, IMG_MENU_BUTTON_RIGHT_ACTIVE,
8308     getScreenMenuButtonPos,
8309     SCREEN_CTRL_ID_NEXT_PLAYER,
8310     SCREEN_MASK_INPUT,
8311     "next player"
8312   },
8313   {
8314     IMG_MENU_BUTTON_INSERT_SOLUTION, IMG_MENU_BUTTON_INSERT_SOLUTION_ACTIVE,
8315     getScreenMenuButtonPos,
8316     SCREEN_CTRL_ID_INSERT_SOLUTION,
8317     SCREEN_MASK_MAIN_HAS_SOLUTION,
8318     "insert solution tape"
8319   },
8320   {
8321     IMG_MENU_BUTTON_PLAY_SOLUTION, IMG_MENU_BUTTON_PLAY_SOLUTION_ACTIVE,
8322     getScreenMenuButtonPos,
8323     SCREEN_CTRL_ID_PLAY_SOLUTION,
8324     SCREEN_MASK_MAIN_HAS_SOLUTION,
8325     "play solution tape"
8326   },
8327 };
8328
8329 static struct
8330 {
8331   int gfx_unpressed, gfx_pressed;
8332   int x, y;
8333   int gadget_id;
8334   char *infotext;
8335 } scrollbutton_info[NUM_SCREEN_SCROLLBUTTONS] =
8336 {
8337   {
8338     IMG_MENU_BUTTON_UP, IMG_MENU_BUTTON_UP_ACTIVE,
8339     -1, -1,     // these values are not constant, but can change at runtime
8340     SCREEN_CTRL_ID_SCROLL_UP,
8341     "scroll up"
8342   },
8343   {
8344     IMG_MENU_BUTTON_DOWN, IMG_MENU_BUTTON_DOWN_ACTIVE,
8345     -1, -1,     // these values are not constant, but can change at runtime
8346     SCREEN_CTRL_ID_SCROLL_DOWN,
8347     "scroll down"
8348   }
8349 };
8350
8351 static struct
8352 {
8353   int gfx_unpressed, gfx_pressed;
8354   int x, y;
8355   int width, height;
8356   int type;
8357   int gadget_id;
8358   char *infotext;
8359 } scrollbar_info[NUM_SCREEN_SCROLLBARS] =
8360 {
8361   {
8362     IMG_MENU_SCROLLBAR, IMG_MENU_SCROLLBAR_ACTIVE,
8363     -1, -1,     // these values are not constant, but can change at runtime
8364     -1, -1,     // these values are not constant, but can change at runtime
8365     GD_TYPE_SCROLLBAR_VERTICAL,
8366     SCREEN_CTRL_ID_SCROLL_VERTICAL,
8367     "scroll level series vertically"
8368   }
8369 };
8370
8371 static struct
8372 {
8373   int graphic;
8374   int gadget_id;
8375   int x, y;
8376   int size;
8377   char *value;
8378   char *infotext;
8379 } textinput_info[NUM_SCREEN_TEXTINPUT] =
8380 {
8381   {
8382     IMG_SETUP_INPUT_TEXT,
8383     SCREEN_CTRL_ID_NETWORK_SERVER,
8384     -1, -1,     // these values are not constant, but can change at runtime
8385     MAX_SETUP_TEXT_INPUT_LEN,
8386     network_server_hostname,
8387     "Network Server Hostname / IP"
8388   },
8389 };
8390
8391 static void CreateScreenMenubuttons(void)
8392 {
8393   struct GadgetInfo *gi;
8394   unsigned int event_mask;
8395   int i;
8396
8397   for (i = 0; i < NUM_SCREEN_MENUBUTTONS; i++)
8398   {
8399     Bitmap *gd_bitmap_unpressed, *gd_bitmap_pressed;
8400     int gfx_unpressed, gfx_pressed;
8401     int x, y, width, height;
8402     int gd_x1, gd_x2, gd_y1, gd_y2;
8403     int id = menubutton_info[i].gadget_id;
8404
8405     if (menubutton_info[i].screen_mask == SCREEN_MASK_MAIN_HAS_SOLUTION)
8406       event_mask = GD_EVENT_RELEASED;
8407     else
8408       event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
8409
8410     menubutton_info[i].get_gadget_position(&x, &y, id);
8411
8412     if (menubutton_info[i].screen_mask == SCREEN_MASK_MAIN_HAS_SOLUTION)
8413     {
8414       width  = graphic_info[menubutton_info[i].gfx_pressed].width;
8415       height = graphic_info[menubutton_info[i].gfx_pressed].height;
8416     }
8417     else
8418     {
8419       width = SC_MENUBUTTON_XSIZE;
8420       height = SC_MENUBUTTON_YSIZE;
8421     }
8422
8423     gfx_unpressed = menubutton_info[i].gfx_unpressed;
8424     gfx_pressed   = menubutton_info[i].gfx_pressed;
8425     gd_bitmap_unpressed = graphic_info[gfx_unpressed].bitmap;
8426     gd_bitmap_pressed   = graphic_info[gfx_pressed].bitmap;
8427     gd_x1 = graphic_info[gfx_unpressed].src_x;
8428     gd_y1 = graphic_info[gfx_unpressed].src_y;
8429     gd_x2 = graphic_info[gfx_pressed].src_x;
8430     gd_y2 = graphic_info[gfx_pressed].src_y;
8431
8432     gi = CreateGadget(GDI_CUSTOM_ID, id,
8433                       GDI_CUSTOM_TYPE_ID, i,
8434                       GDI_IMAGE_ID, gfx_unpressed,
8435                       GDI_INFO_TEXT, menubutton_info[i].infotext,
8436                       GDI_X, x,
8437                       GDI_Y, y,
8438                       GDI_WIDTH, width,
8439                       GDI_HEIGHT, height,
8440                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
8441                       GDI_STATE, GD_BUTTON_UNPRESSED,
8442                       GDI_DESIGN_UNPRESSED, gd_bitmap_unpressed, gd_x1, gd_y1,
8443                       GDI_DESIGN_PRESSED, gd_bitmap_pressed, gd_x2, gd_y2,
8444                       GDI_DIRECT_DRAW, FALSE,
8445                       GDI_EVENT_MASK, event_mask,
8446                       GDI_CALLBACK_ACTION, HandleScreenGadgets,
8447                       GDI_END);
8448
8449     if (gi == NULL)
8450       Error(ERR_EXIT, "cannot create gadget");
8451
8452     screen_gadget[id] = gi;
8453   }
8454 }
8455
8456 static void CreateScreenScrollbuttons(void)
8457 {
8458   struct GadgetInfo *gi;
8459   unsigned int event_mask;
8460   int i;
8461
8462   // these values are not constant, but can change at runtime
8463   scrollbutton_info[0].x = SC_SCROLL_UP_XPOS;
8464   scrollbutton_info[0].y = SC_SCROLL_UP_YPOS;
8465   scrollbutton_info[1].x = SC_SCROLL_DOWN_XPOS;
8466   scrollbutton_info[1].y = SC_SCROLL_DOWN_YPOS;
8467
8468   for (i = 0; i < NUM_SCREEN_SCROLLBUTTONS; i++)
8469   {
8470     Bitmap *gd_bitmap_unpressed, *gd_bitmap_pressed;
8471     int gfx_unpressed, gfx_pressed;
8472     int x, y, width, height;
8473     int gd_x1, gd_x2, gd_y1, gd_y2;
8474     int id = scrollbutton_info[i].gadget_id;
8475
8476     event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
8477
8478     x = mSX + scrollbutton_info[i].x + menu.scrollbar_xoffset;
8479     y = mSY + scrollbutton_info[i].y;
8480     width = SC_SCROLLBUTTON_XSIZE;
8481     height = SC_SCROLLBUTTON_YSIZE;
8482
8483     // correct scrollbar position if placed outside menu (playfield) area
8484     if (x > SX + SC_SCROLL_UP_XPOS)
8485       x = SX + SC_SCROLL_UP_XPOS;
8486
8487     if (id == SCREEN_CTRL_ID_SCROLL_DOWN)
8488       y = mSY + (SC_SCROLL_VERTICAL_YPOS +
8489                  (NUM_MENU_ENTRIES_ON_SCREEN - 2) * SC_SCROLLBUTTON_YSIZE);
8490
8491     gfx_unpressed = scrollbutton_info[i].gfx_unpressed;
8492     gfx_pressed   = scrollbutton_info[i].gfx_pressed;
8493     gd_bitmap_unpressed = graphic_info[gfx_unpressed].bitmap;
8494     gd_bitmap_pressed   = graphic_info[gfx_pressed].bitmap;
8495     gd_x1 = graphic_info[gfx_unpressed].src_x;
8496     gd_y1 = graphic_info[gfx_unpressed].src_y;
8497     gd_x2 = graphic_info[gfx_pressed].src_x;
8498     gd_y2 = graphic_info[gfx_pressed].src_y;
8499
8500     gi = CreateGadget(GDI_CUSTOM_ID, id,
8501                       GDI_CUSTOM_TYPE_ID, i,
8502                       GDI_IMAGE_ID, gfx_unpressed,
8503                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
8504                       GDI_X, x,
8505                       GDI_Y, y,
8506                       GDI_WIDTH, width,
8507                       GDI_HEIGHT, height,
8508                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
8509                       GDI_STATE, GD_BUTTON_UNPRESSED,
8510                       GDI_DESIGN_UNPRESSED, gd_bitmap_unpressed, gd_x1, gd_y1,
8511                       GDI_DESIGN_PRESSED, gd_bitmap_pressed, gd_x2, gd_y2,
8512                       GDI_DIRECT_DRAW, FALSE,
8513                       GDI_EVENT_MASK, event_mask,
8514                       GDI_CALLBACK_ACTION, HandleScreenGadgets,
8515                       GDI_END);
8516
8517     if (gi == NULL)
8518       Error(ERR_EXIT, "cannot create gadget");
8519
8520     screen_gadget[id] = gi;
8521   }
8522 }
8523
8524 static void CreateScreenScrollbars(void)
8525 {
8526   int i;
8527
8528   // these values are not constant, but can change at runtime
8529   scrollbar_info[0].x = SC_SCROLL_VERTICAL_XPOS;
8530   scrollbar_info[0].y = SC_SCROLL_VERTICAL_YPOS;
8531   scrollbar_info[0].width  = SC_SCROLL_VERTICAL_XSIZE;
8532   scrollbar_info[0].height = SC_SCROLL_VERTICAL_YSIZE;
8533
8534   for (i = 0; i < NUM_SCREEN_SCROLLBARS; i++)
8535   {
8536     Bitmap *gd_bitmap_unpressed, *gd_bitmap_pressed;
8537     int gfx_unpressed, gfx_pressed;
8538     int x, y, width, height;
8539     int gd_x1, gd_x2, gd_y1, gd_y2;
8540     struct GadgetInfo *gi;
8541     int items_max, items_visible, item_position;
8542     unsigned int event_mask;
8543     int num_page_entries = NUM_MENU_ENTRIES_ON_SCREEN;
8544     int id = scrollbar_info[i].gadget_id;
8545
8546     event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
8547
8548     x = mSX + scrollbar_info[i].x + menu.scrollbar_xoffset;
8549     y = mSY + scrollbar_info[i].y;
8550     width  = scrollbar_info[i].width;
8551     height = scrollbar_info[i].height;
8552
8553     // correct scrollbar position if placed outside menu (playfield) area
8554     if (x > SX + SC_SCROLL_VERTICAL_XPOS)
8555       x = SX + SC_SCROLL_VERTICAL_XPOS;
8556
8557     if (id == SCREEN_CTRL_ID_SCROLL_VERTICAL)
8558       height = (NUM_MENU_ENTRIES_ON_SCREEN - 2) * SC_SCROLLBUTTON_YSIZE;
8559
8560     items_max = num_page_entries;
8561     items_visible = num_page_entries;
8562     item_position = 0;
8563
8564     gfx_unpressed = scrollbar_info[i].gfx_unpressed;
8565     gfx_pressed   = scrollbar_info[i].gfx_pressed;
8566     gd_bitmap_unpressed = graphic_info[gfx_unpressed].bitmap;
8567     gd_bitmap_pressed   = graphic_info[gfx_pressed].bitmap;
8568     gd_x1 = graphic_info[gfx_unpressed].src_x;
8569     gd_y1 = graphic_info[gfx_unpressed].src_y;
8570     gd_x2 = graphic_info[gfx_pressed].src_x;
8571     gd_y2 = graphic_info[gfx_pressed].src_y;
8572
8573     gi = CreateGadget(GDI_CUSTOM_ID, id,
8574                       GDI_CUSTOM_TYPE_ID, i,
8575                       GDI_IMAGE_ID, gfx_unpressed,
8576                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
8577                       GDI_X, x,
8578                       GDI_Y, y,
8579                       GDI_WIDTH, width,
8580                       GDI_HEIGHT, height,
8581                       GDI_TYPE, scrollbar_info[i].type,
8582                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
8583                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
8584                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
8585                       GDI_WHEEL_AREA_X, SX,
8586                       GDI_WHEEL_AREA_Y, SY,
8587                       GDI_WHEEL_AREA_WIDTH, SXSIZE,
8588                       GDI_WHEEL_AREA_HEIGHT, SYSIZE,
8589                       GDI_STATE, GD_BUTTON_UNPRESSED,
8590                       GDI_DESIGN_UNPRESSED, gd_bitmap_unpressed, gd_x1, gd_y1,
8591                       GDI_DESIGN_PRESSED, gd_bitmap_pressed, gd_x2, gd_y2,
8592                       GDI_BORDER_SIZE, SC_BORDER_SIZE, SC_BORDER_SIZE,
8593                       GDI_DIRECT_DRAW, FALSE,
8594                       GDI_EVENT_MASK, event_mask,
8595                       GDI_CALLBACK_ACTION, HandleScreenGadgets,
8596                       GDI_END);
8597
8598     if (gi == NULL)
8599       Error(ERR_EXIT, "cannot create gadget");
8600
8601     screen_gadget[id] = gi;
8602   }
8603 }
8604
8605 static void CreateScreenTextInputGadgets(void)
8606 {
8607   int i;
8608
8609   for (i = 0; i < NUM_SCREEN_TEXTINPUT; i++)
8610   {
8611     int graphic = textinput_info[i].graphic;
8612     struct GraphicInfo *gd = &graphic_info[graphic];
8613     int gd_x1 = gd->src_x;
8614     int gd_y1 = gd->src_y;
8615     int gd_x2 = gd->src_x + gd->active_xoffset;
8616     int gd_y2 = gd->src_y + gd->active_yoffset;
8617     struct GadgetInfo *gi;
8618     unsigned int event_mask;
8619     int id = textinput_info[i].gadget_id;
8620     int x = textinput_info[i].x;
8621     int y = textinput_info[i].y;
8622
8623     event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
8624
8625     gi = CreateGadget(GDI_CUSTOM_ID, id,
8626                       GDI_CUSTOM_TYPE_ID, i,
8627                       GDI_INFO_TEXT, textinput_info[i].infotext,
8628                       GDI_X, SX + x,
8629                       GDI_Y, SY + y,
8630                       GDI_TYPE, GD_TYPE_TEXT_INPUT_ALPHANUMERIC,
8631                       GDI_TEXT_VALUE, textinput_info[i].value,
8632                       GDI_TEXT_SIZE, textinput_info[i].size,
8633                       GDI_TEXT_FONT, getSetupValueFont(TYPE_STRING, NULL),
8634                       GDI_TEXT_FONT_ACTIVE, FONT_TEXT_1,
8635                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8636                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8637                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
8638                       GDI_DESIGN_WIDTH, gd->width,
8639                       GDI_EVENT_MASK, event_mask,
8640                       GDI_CALLBACK_ACTION, HandleScreenGadgets,
8641                       GDI_CALLBACK_ACTION_ALWAYS, TRUE,
8642                       GDI_END);
8643
8644     if (gi == NULL)
8645       Error(ERR_EXIT, "cannot create gadget");
8646
8647     screen_gadget[id] = gi;
8648   }
8649 }
8650
8651 void CreateScreenGadgets(void)
8652 {
8653   CreateScreenMenubuttons();
8654
8655   CreateScreenScrollbuttons();
8656   CreateScreenScrollbars();
8657
8658   CreateScreenTextInputGadgets();
8659 }
8660
8661 void FreeScreenGadgets(void)
8662 {
8663   int i;
8664
8665   for (i = 0; i < NUM_SCREEN_GADGETS; i++)
8666     FreeGadget(screen_gadget[i]);
8667 }
8668
8669 void MapScreenMenuGadgets(int screen_mask)
8670 {
8671   int i;
8672
8673   for (i = 0; i < NUM_SCREEN_MENUBUTTONS; i++)
8674     if (screen_mask & menubutton_info[i].screen_mask)
8675       MapGadget(screen_gadget[menubutton_info[i].gadget_id]);
8676 }
8677
8678 static void UnmapScreenMenuGadgets(int screen_mask)
8679 {
8680   int i;
8681
8682   for (i = 0; i < NUM_SCREEN_MENUBUTTONS; i++)
8683   {
8684     if (screen_mask & menubutton_info[i].screen_mask)
8685     {
8686       UnmapGadget(screen_gadget[menubutton_info[i].gadget_id]);
8687
8688       if (screen_mask & SCREEN_MASK_MAIN_HAS_SOLUTION)
8689         DrawBackground(screen_gadget[menubutton_info[i].gadget_id]->x,
8690                        screen_gadget[menubutton_info[i].gadget_id]->y,
8691                        screen_gadget[menubutton_info[i].gadget_id]->width,
8692                        screen_gadget[menubutton_info[i].gadget_id]->height);
8693     }
8694   }
8695 }
8696
8697 void UpdateScreenMenuGadgets(int screen_mask, boolean map_gadgets)
8698 {
8699   if (map_gadgets)
8700     MapScreenMenuGadgets(screen_mask);
8701   else
8702     UnmapScreenMenuGadgets(screen_mask);
8703 }
8704
8705 void MapScreenGadgets(int num_entries)
8706 {
8707   int i;
8708
8709   if (num_entries <= NUM_MENU_ENTRIES_ON_SCREEN)
8710     return;
8711
8712   for (i = 0; i < NUM_SCREEN_SCROLLBUTTONS; i++)
8713     MapGadget(screen_gadget[scrollbutton_info[i].gadget_id]);
8714
8715   for (i = 0; i < NUM_SCREEN_SCROLLBARS; i++)
8716     MapGadget(screen_gadget[scrollbar_info[i].gadget_id]);
8717 }
8718
8719 void MapScreenTreeGadgets(TreeInfo *ti)
8720 {
8721   MapScreenGadgets(numTreeInfoInGroup(ti));
8722 }
8723
8724 static void HandleScreenGadgets(struct GadgetInfo *gi)
8725 {
8726   int id = gi->custom_id;
8727   int button = gi->event.button;
8728   int step = (button == MB_LEFTBUTTON   ? 1 :
8729               button == MB_MIDDLEBUTTON ? 5 :
8730               button == MB_RIGHTBUTTON  ? 10 : 1);
8731
8732   switch (id)
8733   {
8734     case SCREEN_CTRL_ID_PREV_LEVEL:
8735       HandleMainMenu_SelectLevel(step, -1, NO_DIRECT_LEVEL_SELECT);
8736       break;
8737
8738     case SCREEN_CTRL_ID_NEXT_LEVEL:
8739       HandleMainMenu_SelectLevel(step, +1, NO_DIRECT_LEVEL_SELECT);
8740       break;
8741
8742     case SCREEN_CTRL_ID_PREV_PLAYER:
8743       HandleSetupScreen_Input_Player(step, -1);
8744       break;
8745
8746     case SCREEN_CTRL_ID_NEXT_PLAYER:
8747       HandleSetupScreen_Input_Player(step, +1);
8748       break;
8749
8750     case SCREEN_CTRL_ID_INSERT_SOLUTION:
8751       InsertSolutionTape();
8752       break;
8753
8754     case SCREEN_CTRL_ID_PLAY_SOLUTION:
8755       PlaySolutionTape();
8756       break;
8757
8758     case SCREEN_CTRL_ID_SCROLL_UP:
8759       if (game_status == GAME_MODE_LEVELS)
8760         HandleChooseLevelSet(0,0, 0, -1 * SCROLL_LINE, MB_MENU_MARK);
8761       else if (game_status == GAME_MODE_LEVELNR)
8762         HandleChooseLevelNr(0,0, 0, -1 * SCROLL_LINE, MB_MENU_MARK);
8763       else if (game_status == GAME_MODE_SETUP)
8764         HandleSetupScreen(0,0, 0, -1 * SCROLL_LINE, MB_MENU_MARK);
8765       else if (game_status == GAME_MODE_INFO)
8766         HandleInfoScreen(0,0, 0, -1 * SCROLL_LINE, MB_MENU_MARK);
8767       break;
8768
8769     case SCREEN_CTRL_ID_SCROLL_DOWN:
8770       if (game_status == GAME_MODE_LEVELS)
8771         HandleChooseLevelSet(0,0, 0, +1 * SCROLL_LINE, MB_MENU_MARK);
8772       else if (game_status == GAME_MODE_LEVELNR)
8773         HandleChooseLevelNr(0,0, 0, +1 * SCROLL_LINE, MB_MENU_MARK);
8774       else if (game_status == GAME_MODE_SETUP)
8775         HandleSetupScreen(0,0, 0, +1 * SCROLL_LINE, MB_MENU_MARK);
8776       else if (game_status == GAME_MODE_INFO)
8777         HandleInfoScreen(0,0, 0, +1 * SCROLL_LINE, MB_MENU_MARK);
8778       break;
8779
8780     case SCREEN_CTRL_ID_SCROLL_VERTICAL:
8781       if (game_status == GAME_MODE_LEVELS)
8782         HandleChooseLevelSet(0,0,999,gi->event.item_position,MB_MENU_INITIALIZE);
8783       else if (game_status == GAME_MODE_LEVELNR)
8784         HandleChooseLevelNr(0,0,999,gi->event.item_position,MB_MENU_INITIALIZE);
8785       else if (game_status == GAME_MODE_SETUP)
8786         HandleSetupScreen(0,0, 999,gi->event.item_position,MB_MENU_INITIALIZE);
8787       else if (game_status == GAME_MODE_INFO)
8788         HandleInfoScreen(0,0, 999,gi->event.item_position,MB_MENU_INITIALIZE);
8789       break;
8790
8791     case SCREEN_CTRL_ID_NETWORK_SERVER:
8792     {
8793       if (!strEqual(gi->textinput.value, ""))
8794       {
8795         setString(&setup.network_server_hostname, gi->textinput.value);
8796
8797         network.server_host = setup.network_server_hostname;
8798       }
8799       else
8800       {
8801         setString(&setup.network_server_hostname, STR_NETWORK_AUTO_DETECT);
8802
8803         network.server_host = NULL;
8804       }
8805
8806       if (strEqual(network.server_host, STR_NETWORK_AUTO_DETECT))
8807         network.server_host = NULL;
8808
8809       execSetupGame_setNetworkServerText();
8810
8811       DrawSetupScreen();
8812
8813       break;
8814     }
8815
8816     default:
8817       break;
8818   }
8819 }
8820
8821 void DumpScreenIdentifiers(void)
8822 {
8823   int i;
8824
8825   Print("Active screen elements on current screen:\n");
8826
8827   for (i = 0; main_controls[i].nr != -1; i++)
8828   {
8829     struct MainControlInfo *mci = &main_controls[i];
8830
8831     if (mci->button_graphic != -1)
8832     {
8833       char *token = getTokenFromImageID(mci->button_graphic);
8834
8835       Print("- '%s'\n", token);
8836     }
8837   }
8838
8839   Print("Done.\n");
8840 }
8841
8842 boolean DoScreenAction(int image_id)
8843 {
8844   int i;
8845
8846   if (game_status != GAME_MODE_MAIN)
8847     return FALSE;
8848
8849   for (i = 0; main_controls[i].nr != -1; i++)
8850   {
8851     struct MainControlInfo *mci = &main_controls[i];
8852     struct MenuPosInfo *pos = mci->pos_button;
8853
8854     if (mci->button_graphic == image_id)
8855     {
8856       int x = mSX + pos->x;
8857       int y = mSY + pos->y;
8858
8859       HandleMainMenu(x, y, 0, 0, MB_MENU_CHOICE);
8860
8861       return TRUE;
8862     }
8863   }
8864
8865   return FALSE;
8866 }