fixed displaying new high score entry if not on first page
[rocksndiamonds.git] / 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 //                  https://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_ENGINES              2
48 #define SETUP_MODE_EDITOR               3
49 #define SETUP_MODE_GRAPHICS             4
50 #define SETUP_MODE_SOUND                5
51 #define SETUP_MODE_ARTWORK              6
52 #define SETUP_MODE_INPUT                7
53 #define SETUP_MODE_TOUCH                8
54 #define SETUP_MODE_SHORTCUTS            9
55 #define SETUP_MODE_SHORTCUTS_1          10
56 #define SETUP_MODE_SHORTCUTS_2          11
57 #define SETUP_MODE_SHORTCUTS_3          12
58 #define SETUP_MODE_SHORTCUTS_4          13
59 #define SETUP_MODE_SHORTCUTS_5          14
60
61 // sub-screens on the setup screen (generic)
62 #define SETUP_MODE_CHOOSE_ARTWORK       15
63 #define SETUP_MODE_CHOOSE_OTHER         16
64
65 // sub-screens on the setup screen (specific)
66 #define SETUP_MODE_CHOOSE_GAME_SPEED    17
67 #define SETUP_MODE_CHOOSE_SCROLL_DELAY  18
68 #define SETUP_MODE_CHOOSE_SNAPSHOT_MODE 19
69 #define SETUP_MODE_CHOOSE_WINDOW_SIZE   20
70 #define SETUP_MODE_CHOOSE_SCALING_TYPE  21
71 #define SETUP_MODE_CHOOSE_RENDERING     22
72 #define SETUP_MODE_CHOOSE_VSYNC         23
73 #define SETUP_MODE_CHOOSE_GRAPHICS      24
74 #define SETUP_MODE_CHOOSE_SOUNDS        25
75 #define SETUP_MODE_CHOOSE_MUSIC         26
76 #define SETUP_MODE_CHOOSE_VOLUME_SIMPLE 27
77 #define SETUP_MODE_CHOOSE_VOLUME_LOOPS  28
78 #define SETUP_MODE_CHOOSE_VOLUME_MUSIC  29
79 #define SETUP_MODE_CHOOSE_TOUCH_CONTROL 30
80 #define SETUP_MODE_CHOOSE_MOVE_DISTANCE 31
81 #define SETUP_MODE_CHOOSE_DROP_DISTANCE 32
82 #define SETUP_MODE_CHOOSE_TRANSPARENCY  33
83 #define SETUP_MODE_CHOOSE_GRID_XSIZE_0  34
84 #define SETUP_MODE_CHOOSE_GRID_YSIZE_0  35
85 #define SETUP_MODE_CHOOSE_GRID_XSIZE_1  36
86 #define SETUP_MODE_CHOOSE_GRID_YSIZE_1  37
87 #define SETUP_MODE_CONFIG_VIRT_BUTTONS  38
88
89 #define MAX_SETUP_MODES                 39
90
91 #define MAX_MENU_MODES                  MAX(MAX_INFO_MODES, MAX_SETUP_MODES)
92
93 // setup screen titles
94 #define STR_SETUP_MAIN                  "Setup"
95 #define STR_SETUP_GAME                  "Game & Menu"
96 #define STR_SETUP_ENGINES               "Game Engines"
97 #define STR_SETUP_EDITOR                "Editor"
98 #define STR_SETUP_GRAPHICS              "Graphics"
99 #define STR_SETUP_SOUND                 "Sound & Music"
100 #define STR_SETUP_ARTWORK               "Custom Artwork"
101 #define STR_SETUP_INPUT                 "Input Devices"
102 #define STR_SETUP_TOUCH                 "Touch Controls"
103 #define STR_SETUP_SHORTCUTS             "Key Shortcuts"
104 #define STR_SETUP_EXIT                  "Exit"
105 #define STR_SETUP_SAVE_AND_EXIT         "Save and Exit"
106
107 #define STR_SETUP_CHOOSE_GAME_SPEED     "Game Speed"
108 #define STR_SETUP_CHOOSE_SCROLL_DELAY   "Scroll Delay"
109 #define STR_SETUP_CHOOSE_SNAPSHOT_MODE  "Snapshot Mode"
110 #define STR_SETUP_CHOOSE_WINDOW_SIZE    "Window Scaling"
111 #define STR_SETUP_CHOOSE_SCALING_TYPE   "Anti-Aliasing"
112 #define STR_SETUP_CHOOSE_RENDERING      "Rendering Mode"
113 #define STR_SETUP_CHOOSE_VSYNC          "VSync Mode"
114 #define STR_SETUP_CHOOSE_VOLUME_SIMPLE  "Sound Volume"
115 #define STR_SETUP_CHOOSE_VOLUME_LOOPS   "Loops Volume"
116 #define STR_SETUP_CHOOSE_VOLUME_MUSIC   "Music Volume"
117 #define STR_SETUP_CHOOSE_TOUCH_CONTROL  "Control Type"
118 #define STR_SETUP_CHOOSE_MOVE_DISTANCE  "Move Distance"
119 #define STR_SETUP_CHOOSE_DROP_DISTANCE  "Drop Distance"
120 #define STR_SETUP_CHOOSE_TRANSPARENCY   "Transparency"
121 #define STR_SETUP_CHOOSE_GRID_XSIZE_0   "Horiz. Buttons"
122 #define STR_SETUP_CHOOSE_GRID_YSIZE_0   "Vert. Buttons"
123 #define STR_SETUP_CHOOSE_GRID_XSIZE_1   "Horiz. Buttons"
124 #define STR_SETUP_CHOOSE_GRID_YSIZE_1   "Vert. Buttons"
125
126 // other screen text constants
127 #define STR_CHOOSE_TREE_EDIT            "Edit"
128 #define MENU_CHOOSE_TREE_FONT(x)        (FONT_TEXT_1 + (x))
129
130 // for input setup functions
131 #define SETUPINPUT_SCREEN_POS_START     0
132 #define SETUPINPUT_SCREEN_POS_EMPTY1    3
133 #define SETUPINPUT_SCREEN_POS_EMPTY2    12
134 #define SETUPINPUT_SCREEN_POS_END       13
135
136 #define MENU_SETUP_FONT_TITLE           FONT_TEXT_1
137 #define MENU_SETUP_FONT_TEXT            FONT_TITLE_2
138
139 #define MAX_SETUP_TEXT_INPUT_LEN        28
140
141 // for various menu stuff
142 #define MENU_SCREEN_START_XPOS          1
143 #define MENU_SCREEN_START_YPOS          2
144 #define MENU_SCREEN_VALUE_XPOS          (SCR_FIELDX - 3)
145 #define MENU_SCREEN_TEXT2_XPOS          (SCR_FIELDX - 2)
146 #define MENU_SCREEN_MAX_XPOS            (SCR_FIELDX - 1)
147 #define MENU_TITLE1_YPOS                8
148 #define MENU_TITLE2_YPOS                46
149 #define MENU_INFO_FONT_TITLE            FONT_TEXT_1
150 #define MENU_INFO_FONT_HEAD             FONT_TEXT_2
151 #define MENU_INFO_FONT_TEXT             FONT_TEXT_3
152 #define MENU_INFO_FONT_FOOT             FONT_TEXT_4
153 #define MENU_INFO_SPACE_HEAD            (menu.headline2_spacing_info[info_mode])
154 #define MENU_SCREEN_INFO_SPACE_LEFT     (menu.left_spacing_info[info_mode])
155 #define MENU_SCREEN_INFO_SPACE_RIGHT    (menu.right_spacing_info[info_mode])
156 #define MENU_SCREEN_INFO_SPACE_TOP      (menu.top_spacing_info[info_mode])
157 #define MENU_SCREEN_INFO_SPACE_BOTTOM   (menu.bottom_spacing_info[info_mode])
158 #define MENU_SCREEN_INFO_YSTART1        MENU_SCREEN_INFO_SPACE_TOP
159 #define MENU_SCREEN_INFO_YSTART2        (MENU_SCREEN_INFO_YSTART1 +            \
160                                          getMenuTextStep(MENU_INFO_SPACE_HEAD, \
161                                                          MENU_INFO_FONT_TITLE))
162 #define MENU_SCREEN_INFO_YSTEP          (TILEY + 4)
163 #define MENU_SCREEN_INFO_YBOTTOM        (SYSIZE - MENU_SCREEN_INFO_SPACE_BOTTOM)
164 #define MENU_SCREEN_INFO_YSIZE          (MENU_SCREEN_INFO_YBOTTOM -     \
165                                          MENU_SCREEN_INFO_YSTART2 -     \
166                                          TILEY / 2)
167 #define MAX_INFO_ELEMENTS_ON_SCREEN     128
168 #define STD_INFO_ELEMENTS_ON_SCREEN     (MENU_SCREEN_INFO_YSIZE /       \
169                                          MENU_SCREEN_INFO_YSTEP)
170 #define NUM_INFO_ELEMENTS_FROM_CONF     \
171   (menu.list_size_info[GFX_SPECIAL_ARG_INFO_ELEMENTS] > 0 ?             \
172    menu.list_size_info[GFX_SPECIAL_ARG_INFO_ELEMENTS] :                 \
173    MAX_MENU_ENTRIES_ON_SCREEN)
174 #define NUM_INFO_ELEMENTS_ON_SCREEN     MIN(MIN(STD_INFO_ELEMENTS_ON_SCREEN, \
175                                                 MAX_INFO_ELEMENTS_ON_SCREEN), \
176                                             NUM_INFO_ELEMENTS_FROM_CONF)
177 #define MAX_MENU_ENTRIES_ON_SCREEN      (SCR_FIELDY - MENU_SCREEN_START_YPOS)
178 #define MAX_MENU_TEXT_LENGTH_BIG        13
179 #define MAX_MENU_TEXT_LENGTH_MEDIUM     (MAX_MENU_TEXT_LENGTH_BIG * 2)
180
181 // screen gadget identifiers
182 #define SCREEN_CTRL_ID_PREV_LEVEL       0
183 #define SCREEN_CTRL_ID_NEXT_LEVEL       1
184 #define SCREEN_CTRL_ID_FIRST_LEVEL      2
185 #define SCREEN_CTRL_ID_LAST_LEVEL       3
186 #define SCREEN_CTRL_ID_LEVEL_NUMBER     4
187 #define SCREEN_CTRL_ID_PREV_PLAYER      5
188 #define SCREEN_CTRL_ID_NEXT_PLAYER      6
189 #define SCREEN_CTRL_ID_INSERT_SOLUTION  7
190 #define SCREEN_CTRL_ID_PLAY_SOLUTION    8
191 #define SCREEN_CTRL_ID_SWITCH_ECS_AGA   9
192 #define SCREEN_CTRL_ID_TOUCH_PREV_PAGE  10
193 #define SCREEN_CTRL_ID_TOUCH_NEXT_PAGE  11
194 #define SCREEN_CTRL_ID_TOUCH_PREV_PAGE2 12
195 #define SCREEN_CTRL_ID_TOUCH_NEXT_PAGE2 13
196 #define SCREEN_CTRL_ID_SCROLL_UP        14
197 #define SCREEN_CTRL_ID_SCROLL_DOWN      15
198 #define SCREEN_CTRL_ID_SCROLL_VERTICAL  16
199 #define SCREEN_CTRL_ID_NETWORK_SERVER   17
200
201 #define NUM_SCREEN_GADGETS              18
202
203 #define NUM_SCREEN_MENUBUTTONS          14
204 #define NUM_SCREEN_SCROLLBUTTONS        2
205 #define NUM_SCREEN_SCROLLBARS           1
206 #define NUM_SCREEN_TEXTINPUT            1
207
208 #define SCREEN_MASK_MAIN                (1 << 0)
209 #define SCREEN_MASK_MAIN_HAS_SOLUTION   (1 << 1)
210 #define SCREEN_MASK_INPUT               (1 << 2)
211 #define SCREEN_MASK_TOUCH               (1 << 3)
212 #define SCREEN_MASK_TOUCH2              (1 << 4)
213
214 // graphic position and size values for buttons and scrollbars
215 #define SC_MENUBUTTON_XSIZE             TILEX
216 #define SC_MENUBUTTON_YSIZE             TILEY
217
218 #define SC_SCROLLBUTTON_XSIZE           TILEX
219 #define SC_SCROLLBUTTON_YSIZE           TILEY
220
221 #define SC_SCROLLBAR_XPOS               (SXSIZE - SC_SCROLLBUTTON_XSIZE)
222
223 #define SC_SCROLL_VERTICAL_XSIZE        SC_SCROLLBUTTON_XSIZE
224 #define SC_SCROLL_VERTICAL_YSIZE        ((MAX_MENU_ENTRIES_ON_SCREEN - 2) * \
225                                          SC_SCROLLBUTTON_YSIZE)
226
227 #define SC_SCROLL_UP_XPOS               SC_SCROLLBAR_XPOS
228 #define SC_SCROLL_UP_YPOS               (2 * SC_SCROLLBUTTON_YSIZE)
229
230 #define SC_SCROLL_VERTICAL_XPOS         SC_SCROLLBAR_XPOS
231 #define SC_SCROLL_VERTICAL_YPOS         (SC_SCROLL_UP_YPOS + \
232                                          SC_SCROLLBUTTON_YSIZE)
233
234 #define SC_SCROLL_DOWN_XPOS             SC_SCROLLBAR_XPOS
235 #define SC_SCROLL_DOWN_YPOS             (SC_SCROLL_VERTICAL_YPOS + \
236                                          SC_SCROLL_VERTICAL_YSIZE)
237
238 #define SC_BORDER_SIZE                  14
239
240
241 // forward declarations of internal functions
242 static void HandleScreenGadgets(struct GadgetInfo *);
243 static void HandleSetupScreen_Generic(int, int, int, int, int);
244 static void HandleSetupScreen_Input(int, int, int, int, int);
245 static void CustomizeKeyboard(int);
246 static void ConfigureJoystick(int);
247 static void ConfigureVirtualButtons(void);
248 static void execSetupGame(void);
249 static void execSetupEngines(void);
250 static void execSetupGraphics(void);
251 static void execSetupSound(void);
252 static void execSetupTouch(void);
253 static void execSetupArtwork(void);
254 static void HandleChooseTree(int, int, int, int, int, TreeInfo **);
255
256 static void DrawChoosePlayerName(void);
257 static void DrawChooseLevelSet(void);
258 static void DrawChooseLevelNr(void);
259 static void DrawInfoScreen(void);
260 static void DrawSetupScreen(void);
261 static void DrawTypeName(void);
262
263 static void DrawInfoScreen_NotAvailable(char *, char *);
264 static void DrawInfoScreen_HelpAnim(int, int, boolean);
265 static void DrawInfoScreen_HelpText(int, int, int, int);
266 static void HandleInfoScreen_Main(int, int, int, int, int);
267 static void HandleInfoScreen_TitleScreen(int);
268 static void HandleInfoScreen_Elements(int);
269 static void HandleInfoScreen_Music(int);
270 static void HandleInfoScreen_Credits(int);
271 static void HandleInfoScreen_Program(int);
272 static void HandleInfoScreen_Version(int);
273
274 static void ModifyGameSpeedIfNeeded(void);
275 static void DisableVsyncIfNeeded(void);
276
277 static void MapScreenMenuGadgets(int);
278 static void UnmapScreenMenuGadgets(int);
279 static void MapScreenGadgets(int);
280 static void MapScreenTreeGadgets(TreeInfo *);
281
282 static void UpdateScreenMenuGadgets(int, boolean);
283
284 static struct GadgetInfo *screen_gadget[NUM_SCREEN_GADGETS];
285
286 static int info_mode = INFO_MODE_MAIN;
287 static int setup_mode = SETUP_MODE_MAIN;
288
289 static TreeInfo *window_sizes = NULL;
290 static TreeInfo *window_size_current = NULL;
291
292 static TreeInfo *scaling_types = NULL;
293 static TreeInfo *scaling_type_current = NULL;
294
295 static TreeInfo *rendering_modes = NULL;
296 static TreeInfo *rendering_mode_current = NULL;
297
298 static TreeInfo *vsync_modes = NULL;
299 static TreeInfo *vsync_mode_current = NULL;
300
301 static TreeInfo *scroll_delays = NULL;
302 static TreeInfo *scroll_delay_current = NULL;
303
304 static TreeInfo *snapshot_modes = NULL;
305 static TreeInfo *snapshot_mode_current = NULL;
306
307 static TreeInfo *game_speeds_normal = NULL;
308 static TreeInfo *game_speeds_extended = NULL;
309 static TreeInfo *game_speeds = NULL;
310 static TreeInfo *game_speed_current = NULL;
311
312 static TreeInfo *volumes_simple = NULL;
313 static TreeInfo *volume_simple_current = NULL;
314
315 static TreeInfo *volumes_loops = NULL;
316 static TreeInfo *volume_loops_current = NULL;
317
318 static TreeInfo *volumes_music = NULL;
319 static TreeInfo *volume_music_current = NULL;
320
321 static TreeInfo *touch_controls = NULL;
322 static TreeInfo *touch_control_current = NULL;
323
324 static TreeInfo *move_distances = NULL;
325 static TreeInfo *move_distance_current = NULL;
326
327 static TreeInfo *drop_distances = NULL;
328 static TreeInfo *drop_distance_current = NULL;
329
330 static TreeInfo *transparencies = NULL;
331 static TreeInfo *transparency_current = NULL;
332
333 static TreeInfo *grid_sizes[2][2] = { { NULL, NULL }, { NULL, NULL } };
334 static TreeInfo *grid_size_current[2][2] = { { NULL, NULL }, { NULL, NULL } };
335
336 static TreeInfo *player_name = NULL;
337 static TreeInfo *player_name_current = NULL;
338
339 static TreeInfo *level_number = NULL;
340 static TreeInfo *level_number_current = NULL;
341
342 static struct ValueTextInfo window_sizes_list[] =
343 {
344   {     50,     "50 %"                          },
345   {     80,     "80 %"                          },
346   {     90,     "90 %"                          },
347   {     100,    "100 % (Default)"               },
348   {     110,    "110 %"                         },
349   {     120,    "120 %"                         },
350   {     130,    "130 %"                         },
351   {     140,    "140 %"                         },
352   {     150,    "150 %"                         },
353   {     200,    "200 %"                         },
354   {     250,    "250 %"                         },
355   {     300,    "300 %"                         },
356
357   {     -1,     NULL                            },
358 };
359
360 static struct StringValueTextInfo scaling_types_list[] =
361 {
362   {     SCALING_QUALITY_NEAREST, "Off"          },
363   {     SCALING_QUALITY_LINEAR,  "Linear"       },
364   {     SCALING_QUALITY_BEST,    "Anisotropic"  },
365
366   {     NULL,                    NULL           },
367 };
368
369 static struct StringValueTextInfo rendering_modes_list[] =
370 {
371   {     STR_SPECIAL_RENDERING_OFF,      "Off (May show artifacts, fast)" },
372   {     STR_SPECIAL_RENDERING_BITMAP,   "Bitmap/Texture mode (slower)"   },
373 #if DEBUG
374   // this mode may work under certain conditions, but does not work on Windows
375   {     STR_SPECIAL_RENDERING_TARGET,   "Target Texture mode (slower)"   },
376 #endif
377   {     STR_SPECIAL_RENDERING_DOUBLE,   "Double Texture mode (slower)"   },
378
379   {     NULL,                            NULL                            },
380 };
381
382 static struct StringValueTextInfo vsync_modes_list[] =
383 {
384   {     STR_VSYNC_MODE_OFF,             "Off"           },
385   {     STR_VSYNC_MODE_NORMAL,          "Normal"        },
386   {     STR_VSYNC_MODE_ADAPTIVE,        "Adaptive"      },
387
388   {     NULL,                            NULL           },
389 };
390
391 static struct ValueTextInfo game_speeds_list_normal[] =
392 {
393   {     30,     "Very Slow"                     },
394   {     25,     "Slow"                          },
395   {     20,     "Normal"                        },
396   {     15,     "Fast"                          },
397   {     10,     "Very Fast"                     },
398
399   {     -1,     NULL                            },
400 };
401
402 static struct ValueTextInfo game_speeds_list_extended[] =
403 {
404   {     1000,   "1 fps (Extremely Slow)"        },
405   {     500,    "2 fps"                         },
406   {     200,    "5 fps"                         },
407   {     100,    "10 fps"                        },
408   {     50,     "20 fps"                        },
409   {     29,     "35 fps (Original Supaplex)"    },
410   {     25,     "40 fps"                        },
411   {     20,     "50 fps (=== Normal Speed ===)" },
412   {     16,     "60 fps (60 Hz VSync Speed)"    },
413   {     14,     "70 fps (Maximum Supaplex)"     },
414   {     10,     "100 fps"                       },
415   {     5,      "200 fps"                       },
416   {     2,      "500 fps"                       },
417   {     1,      "1000 fps (Extremely Fast)"     },
418
419   {     -1,     NULL                            },
420 };
421
422 static struct ValueTextInfo *game_speeds_list;
423
424 static struct ValueTextInfo scroll_delays_list[] =
425 {
426   {     0,      "0 Tiles (No Scroll Delay)"     },
427   {     1,      "1 Tile"                        },
428   {     2,      "2 Tiles"                       },
429   {     3,      "3 Tiles (Default)"             },
430   {     4,      "4 Tiles"                       },
431   {     5,      "5 Tiles"                       },
432   {     6,      "6 Tiles"                       },
433   {     7,      "7 Tiles"                       },
434   {     8,      "8 Tiles (Maximum Scroll Delay)"},
435
436   {     -1,     NULL                            },
437 };
438
439 static struct StringValueTextInfo snapshot_modes_list[] =
440 {
441   {     STR_SNAPSHOT_MODE_OFF,                  "Off"           },
442   {     STR_SNAPSHOT_MODE_EVERY_STEP,           "Every Step"    },
443   {     STR_SNAPSHOT_MODE_EVERY_MOVE,           "Every Move"    },
444   {     STR_SNAPSHOT_MODE_EVERY_COLLECT,        "Every Collect" },
445
446   {     NULL,                                   NULL            },
447 };
448
449 static struct ValueTextInfo volumes_list[] =
450 {
451   {     0,      "0 %"                           },
452   {     1,      "1 %"                           },
453   {     2,      "2 %"                           },
454   {     5,      "5 %"                           },
455   {     10,     "10 %"                          },
456   {     20,     "20 %"                          },
457   {     30,     "30 %"                          },
458   {     40,     "40 %"                          },
459   {     50,     "50 %"                          },
460   {     60,     "60 %"                          },
461   {     70,     "70 %"                          },
462   {     80,     "80 %"                          },
463   {     90,     "90 %"                          },
464   {     100,    "100 %"                         },
465
466   {     -1,     NULL                            },
467 };
468
469 static struct StringValueTextInfo touch_controls_list[] =
470 {
471   {     TOUCH_CONTROL_OFF,              "Off"                   },
472   {     TOUCH_CONTROL_VIRTUAL_BUTTONS,  "Virtual Buttons"       },
473   {     TOUCH_CONTROL_WIPE_GESTURES,    "Wipe Gestures"         },
474   {     TOUCH_CONTROL_FOLLOW_FINGER,    "Follow Finger"         },
475
476   {     NULL,                           NULL                    },
477 };
478
479 static struct ValueTextInfo distances_list[] =
480 {
481   {     1,      "1 %"                           },
482   {     2,      "2 %"                           },
483   {     3,      "3 %"                           },
484   {     4,      "4 %"                           },
485   {     5,      "5 %"                           },
486   {     10,     "10 %"                          },
487   {     15,     "15 %"                          },
488   {     20,     "20 %"                          },
489   {     25,     "25 %"                          },
490
491   {     -1,     NULL                            },
492 };
493
494 static struct ValueTextInfo transparencies_list[] =
495 {
496   {     0,      "0 % (Opaque)"                  },
497   {     10,     "10 %"                          },
498   {     20,     "20 %"                          },
499   {     30,     "30 %"                          },
500   {     40,     "40 %"                          },
501   {     50,     "50 %"                          },
502   {     60,     "60 %"                          },
503   {     70,     "70 %"                          },
504   {     80,     "80 %"                          },
505   {     90,     "90 %"                          },
506   {     100,    "100 % (Invisible)"             },
507
508   {     -1,     NULL                            },
509 };
510
511 static struct ValueTextInfo grid_sizes_list[] =
512 {
513   {     3,      "3"                             },
514   {     4,      "4"                             },
515   {     5,      "5"                             },
516   {     6,      "6"                             },
517   {     7,      "7"                             },
518   {     8,      "8"                             },
519   {     9,      "9"                             },
520   {     10,     "10"                            },
521   {     11,     "11"                            },
522   {     12,     "12"                            },
523   {     13,     "13"                            },
524   {     14,     "14"                            },
525   {     15,     "15"                            },
526   {     16,     "16"                            },
527   {     17,     "17"                            },
528   {     18,     "18"                            },
529   {     19,     "19"                            },
530   {     20,     "20"                            },
531   {     21,     "21"                            },
532   {     22,     "22"                            },
533   {     23,     "23"                            },
534   {     24,     "24"                            },
535   {     25,     "25"                            },
536   {     26,     "26"                            },
537   {     27,     "27"                            },
538   {     28,     "28"                            },
539   {     29,     "29"                            },
540   {     30,     "30"                            },
541   {     31,     "31"                            },
542   {     32,     "32"                            },
543
544   {     -1,     NULL                            },
545 };
546
547 static int align_xoffset = 0;
548 static int align_yoffset = 0;
549
550 #define DRAW_MODE(s)            ((s) >= GAME_MODE_MAIN &&               \
551                                  (s) <= GAME_MODE_SETUP ? (s) :         \
552                                  (s) == GAME_MODE_PSEUDO_TYPENAME ?     \
553                                  GAME_MODE_MAIN :                       \
554                                  (s) == GAME_MODE_PSEUDO_TYPENAMES ?    \
555                                  GAME_MODE_NAMES : GAME_MODE_DEFAULT)
556
557 // (there are no draw offset definitions needed for INFO_MODE_TITLE)
558 #define DRAW_MODE_INFO(i)       ((i) >= INFO_MODE_TITLE &&              \
559                                  (i) <= INFO_MODE_LEVELSET ? (i) :      \
560                                  INFO_MODE_MAIN)
561
562 #define DRAW_MODE_SETUP(i)      ((i) >= SETUP_MODE_MAIN &&              \
563                                  (i) <= SETUP_MODE_SHORTCUTS_5 ? (i) :  \
564                                  (i) >= SETUP_MODE_CHOOSE_GRAPHICS &&   \
565                                  (i) <= SETUP_MODE_CHOOSE_MUSIC ?       \
566                                  SETUP_MODE_CHOOSE_ARTWORK :            \
567                                  SETUP_MODE_CHOOSE_OTHER)
568
569 #define DRAW_XOFFSET_INFO(i)    (DRAW_MODE_INFO(i) == INFO_MODE_MAIN ?  \
570                                  menu.draw_xoffset[GAME_MODE_INFO] :    \
571                                  menu.draw_xoffset_info[DRAW_MODE_INFO(i)])
572 #define DRAW_YOFFSET_INFO(i)    (DRAW_MODE_INFO(i) == INFO_MODE_MAIN ?  \
573                                  menu.draw_yoffset[GAME_MODE_INFO] :    \
574                                  menu.draw_yoffset_info[DRAW_MODE_INFO(i)])
575 #define EXTRA_SPACING_INFO(i)   (DRAW_MODE_INFO(i) == INFO_MODE_MAIN ? \
576                                  menu.extra_spacing[GAME_MODE_INFO] :   \
577                                  menu.extra_spacing_info[DRAW_MODE_INFO(i)])
578
579 #define DRAW_XOFFSET_SETUP(i)   (DRAW_MODE_SETUP(i) == SETUP_MODE_MAIN ? \
580                                  menu.draw_xoffset[GAME_MODE_SETUP] :   \
581                                  menu.draw_xoffset_setup[DRAW_MODE_SETUP(i)])
582 #define DRAW_YOFFSET_SETUP(i)   (DRAW_MODE_SETUP(i) == SETUP_MODE_MAIN ? \
583                                  menu.draw_yoffset[GAME_MODE_SETUP] :   \
584                                  menu.draw_yoffset_setup[DRAW_MODE_SETUP(i)])
585 #define EXTRA_SPACING_SETUP(i)  (DRAW_MODE_SETUP(i) == SETUP_MODE_MAIN ? \
586                                  menu.extra_spacing[GAME_MODE_SETUP] :  \
587                                  menu.extra_spacing_setup[DRAW_MODE_SETUP(i)])
588
589 #define DRAW_XOFFSET(s)         ((s) == GAME_MODE_INFO ?                \
590                                  DRAW_XOFFSET_INFO(info_mode) :         \
591                                  (s) == GAME_MODE_SETUP ?               \
592                                  DRAW_XOFFSET_SETUP(setup_mode) :       \
593                                  menu.draw_xoffset[DRAW_MODE(s)])
594 #define DRAW_YOFFSET(s)         ((s) == GAME_MODE_INFO ?                \
595                                  DRAW_YOFFSET_INFO(info_mode) :         \
596                                  (s) == GAME_MODE_SETUP ?               \
597                                  DRAW_YOFFSET_SETUP(setup_mode) :       \
598                                  menu.draw_yoffset[DRAW_MODE(s)])
599 #define EXTRA_SPACING(s)        ((s) == GAME_MODE_INFO ?                \
600                                  EXTRA_SPACING_INFO(info_mode) :        \
601                                  (s) == GAME_MODE_SETUP ?               \
602                                  EXTRA_SPACING_SETUP(setup_mode) :      \
603                                  menu.extra_spacing[DRAW_MODE(s)])
604
605 #define mSX                     (SX + DRAW_XOFFSET(game_status))
606 #define mSY                     (SY + DRAW_YOFFSET(game_status))
607
608 #define amSX                    (mSX + align_xoffset)
609 #define amSY                    (mSY + align_yoffset)
610
611 #define NUM_MENU_ENTRIES_ON_SCREEN (menu.list_size[game_status] > 2 ?   \
612                                     menu.list_size[game_status] :       \
613                                     MAX_MENU_ENTRIES_ON_SCREEN)
614
615 #define IN_VIS_MENU(x, y)       IN_FIELD(x, y, SCR_FIELDX,              \
616                                          NUM_MENU_ENTRIES_ON_SCREEN)
617
618
619 // title display and control definitions
620
621 #define MAX_NUM_TITLE_SCREENS   (2 * MAX_NUM_TITLE_IMAGES +             \
622                                  2 * MAX_NUM_TITLE_MESSAGES)
623
624 #define NO_DIRECT_LEVEL_SELECT  (-1)
625
626
627 static int num_title_screens = 0;
628
629 struct TitleControlInfo
630 {
631   boolean is_image;
632   boolean initial;
633   boolean first;
634   int local_nr;
635   int sort_priority;
636 };
637
638 struct TitleControlInfo title_controls[MAX_NUM_TITLE_SCREENS];
639
640 // main menu display and control definitions
641
642 #define MAIN_CONTROL_NAME                       0
643 #define MAIN_CONTROL_LEVELS                     1
644 #define MAIN_CONTROL_SCORES                     2
645 #define MAIN_CONTROL_EDITOR                     3
646 #define MAIN_CONTROL_INFO                       4
647 #define MAIN_CONTROL_GAME                       5
648 #define MAIN_CONTROL_SETUP                      6
649 #define MAIN_CONTROL_QUIT                       7
650 #define MAIN_CONTROL_PREV_LEVEL                 8
651 #define MAIN_CONTROL_NEXT_LEVEL                 9
652 #define MAIN_CONTROL_FIRST_LEVEL                10
653 #define MAIN_CONTROL_LAST_LEVEL                 11
654 #define MAIN_CONTROL_LEVEL_NUMBER               12
655 #define MAIN_CONTROL_LEVEL_INFO_1               13
656 #define MAIN_CONTROL_LEVEL_INFO_2               14
657 #define MAIN_CONTROL_LEVEL_NAME                 15
658 #define MAIN_CONTROL_LEVEL_AUTHOR               16
659 #define MAIN_CONTROL_LEVEL_YEAR                 17
660 #define MAIN_CONTROL_LEVEL_IMPORTED_FROM        18
661 #define MAIN_CONTROL_LEVEL_IMPORTED_BY          19
662 #define MAIN_CONTROL_LEVEL_TESTED_BY            20
663 #define MAIN_CONTROL_TITLE_1                    21
664 #define MAIN_CONTROL_TITLE_2                    22
665 #define MAIN_CONTROL_TITLE_3                    23
666
667 static char str_main_text_name[10];
668 static char str_main_text_first_level[10];
669 static char str_main_text_last_level[10];
670 static char str_main_text_level_number[10];
671
672 static char network_server_hostname[MAX_SETUP_TEXT_INPUT_LEN + 1];
673
674 static char *main_text_name                     = str_main_text_name;
675 static char *main_text_first_level              = str_main_text_first_level;
676 static char *main_text_last_level               = str_main_text_last_level;
677 static char *main_text_level_number             = str_main_text_level_number;
678 static char *main_text_levels                   = "Levelset";
679 static char *main_text_scores                   = "Hall Of Fame";
680 static char *main_text_editor                   = "Level Creator";
681 static char *main_text_info                     = "Info Screen";
682 static char *main_text_game                     = "Start Game";
683 static char *main_text_setup                    = "Setup";
684 static char *main_text_quit                     = "Quit";
685 static char *main_text_level_name               = level.name;
686 static char *main_text_level_author             = level.author;
687 static char *main_text_level_year               = NULL;
688 static char *main_text_level_imported_from      = NULL;
689 static char *main_text_level_imported_by        = NULL;
690 static char *main_text_level_tested_by          = NULL;
691 static char *main_text_title_1                  = NULL;
692 static char *main_text_title_2                  = NULL;
693 static char *main_text_title_3                  = NULL;
694
695 extern char debug_xsn_mode[];
696
697 struct MainControlInfo
698 {
699   int nr;
700
701   struct MenuPosInfo *pos_button;
702   int button_graphic;
703
704   struct TextPosInfo *pos_text;
705   char **text;
706
707   struct TextPosInfo *pos_input;
708   char **input;
709 };
710
711 static struct MainControlInfo main_controls[] =
712 {
713   {
714     MAIN_CONTROL_NAME,
715     &menu.main.button.name,             IMG_MENU_BUTTON_NAME,
716     &menu.main.text.name,               &main_text_name,
717     &menu.main.input.name,              &setup.player_name,
718   },
719   {
720     MAIN_CONTROL_LEVELS,
721     &menu.main.button.levels,           IMG_MENU_BUTTON_LEVELS,
722     &menu.main.text.levels,             &main_text_levels,
723     NULL,                               NULL,
724   },
725   {
726     MAIN_CONTROL_SCORES,
727     &menu.main.button.scores,           IMG_MENU_BUTTON_SCORES,
728     &menu.main.text.scores,             &main_text_scores,
729     NULL,                               NULL,
730   },
731   {
732     MAIN_CONTROL_EDITOR,
733     &menu.main.button.editor,           IMG_MENU_BUTTON_EDITOR,
734     &menu.main.text.editor,             &main_text_editor,
735     NULL,                               NULL,
736   },
737   {
738     MAIN_CONTROL_INFO,
739     &menu.main.button.info,             IMG_MENU_BUTTON_INFO,
740     &menu.main.text.info,               &main_text_info,
741     NULL,                               NULL,
742   },
743   {
744     MAIN_CONTROL_GAME,
745     &menu.main.button.game,             IMG_MENU_BUTTON_GAME,
746     &menu.main.text.game,               &main_text_game,
747     NULL,                               NULL,
748   },
749   {
750     MAIN_CONTROL_SETUP,
751     &menu.main.button.setup,            IMG_MENU_BUTTON_SETUP,
752     &menu.main.text.setup,              &main_text_setup,
753     NULL,                               NULL,
754   },
755   {
756     MAIN_CONTROL_QUIT,
757     &menu.main.button.quit,             IMG_MENU_BUTTON_QUIT,
758     &menu.main.text.quit,               &main_text_quit,
759     NULL,                               NULL,
760   },
761   {
762     MAIN_CONTROL_PREV_LEVEL,
763     NULL,                               -1,
764     NULL,                               NULL,
765     NULL,                               NULL,
766   },
767   {
768     MAIN_CONTROL_NEXT_LEVEL,
769     NULL,                               -1,
770     NULL,                               NULL,
771     NULL,                               NULL,
772   },
773   {
774     MAIN_CONTROL_FIRST_LEVEL,
775     NULL,                               -1,
776     &menu.main.text.first_level,        &main_text_first_level,
777     NULL,                               NULL,
778   },
779   {
780     MAIN_CONTROL_LAST_LEVEL,
781     NULL,                               -1,
782     &menu.main.text.last_level,         &main_text_last_level,
783     NULL,                               NULL,
784   },
785   {
786     MAIN_CONTROL_LEVEL_NUMBER,
787     NULL,                               -1,
788     &menu.main.text.level_number,       &main_text_level_number,
789     NULL,                               NULL,
790   },
791   {
792     MAIN_CONTROL_LEVEL_INFO_1,
793     NULL,                               -1,
794     &menu.main.text.level_info_1,       NULL,
795     NULL,                               NULL,
796   },
797   {
798     MAIN_CONTROL_LEVEL_INFO_2,
799     NULL,                               -1,
800     &menu.main.text.level_info_2,       NULL,
801     NULL,                               NULL,
802   },
803   {
804     MAIN_CONTROL_LEVEL_NAME,
805     NULL,                               -1,
806     &menu.main.text.level_name,         &main_text_level_name,
807     NULL,                               NULL,
808   },
809   {
810     MAIN_CONTROL_LEVEL_AUTHOR,
811     NULL,                               -1,
812     &menu.main.text.level_author,       &main_text_level_author,
813     NULL,                               NULL,
814   },
815   {
816     MAIN_CONTROL_LEVEL_YEAR,
817     NULL,                               -1,
818     &menu.main.text.level_year,         &main_text_level_year,
819     NULL,                               NULL,
820   },
821   {
822     MAIN_CONTROL_LEVEL_IMPORTED_FROM,
823     NULL,                               -1,
824     &menu.main.text.level_imported_from, &main_text_level_imported_from,
825     NULL,                               NULL,
826   },
827   {
828     MAIN_CONTROL_LEVEL_IMPORTED_BY,
829     NULL,                               -1,
830     &menu.main.text.level_imported_by,  &main_text_level_imported_by,
831     NULL,                               NULL,
832   },
833   {
834     MAIN_CONTROL_LEVEL_TESTED_BY,
835     NULL,                               -1,
836     &menu.main.text.level_tested_by,    &main_text_level_tested_by,
837     NULL,                               NULL,
838   },
839   {
840     MAIN_CONTROL_TITLE_1,
841     NULL,                               -1,
842     &menu.main.text.title_1,            &main_text_title_1,
843     NULL,                               NULL,
844   },
845   {
846     MAIN_CONTROL_TITLE_2,
847     NULL,                               -1,
848     &menu.main.text.title_2,            &main_text_title_2,
849     NULL,                               NULL,
850   },
851   {
852     MAIN_CONTROL_TITLE_3,
853     NULL,                               -1,
854     &menu.main.text.title_3,            &main_text_title_3,
855     NULL,                               NULL,
856   },
857
858   {
859     -1,
860     NULL,                               -1,
861     NULL,                               NULL,
862     NULL,                               NULL,
863   }
864 };
865
866
867 static int getTitleScreenGraphic(int nr, boolean initial)
868 {
869   return (initial ? IMG_TITLESCREEN_INITIAL_1 : IMG_TITLESCREEN_1) + nr;
870 }
871
872 static struct TitleMessageInfo *getTitleMessageInfo(int nr, boolean initial)
873 {
874   return (initial ? &titlemessage_initial[nr] : &titlemessage[nr]);
875 }
876
877 #if 0
878 static int getTitleScreenGameMode(boolean initial)
879 {
880   return (initial ? GAME_MODE_TITLE_INITIAL : GAME_MODE_TITLE);
881 }
882 #endif
883
884 static int getTitleMessageGameMode(boolean initial)
885 {
886   return (initial ? GAME_MODE_TITLE_INITIAL : GAME_MODE_TITLE);
887 }
888
889 static int getTitleAnimMode(struct TitleControlInfo *tci)
890 {
891   int base = (tci->initial ? GAME_MODE_TITLE_INITIAL_1 : GAME_MODE_TITLE_1);
892
893   return base + tci->local_nr;
894 }
895
896 #if 0
897 static int getTitleScreenBackground(boolean initial)
898 {
899   return (initial ? IMG_BACKGROUND_TITLE_INITIAL : IMG_BACKGROUND_TITLE);
900 }
901 #endif
902
903 #if 0
904 static int getTitleMessageBackground(int nr, boolean initial)
905 {
906   return (initial ? IMG_BACKGROUND_TITLE_INITIAL : IMG_BACKGROUND_TITLE);
907 }
908 #endif
909
910 static int getTitleBackground(int nr, boolean initial, boolean is_image)
911 {
912   int base = (is_image ?
913               (initial ? IMG_BACKGROUND_TITLESCREEN_INITIAL_1 :
914                          IMG_BACKGROUND_TITLESCREEN_1) :
915               (initial ? IMG_BACKGROUND_TITLEMESSAGE_INITIAL_1 :
916                          IMG_BACKGROUND_TITLEMESSAGE_1));
917   int graphic_global = (initial ? IMG_BACKGROUND_TITLE_INITIAL :
918                                   IMG_BACKGROUND_TITLE);
919   int graphic_local = base + nr;
920
921   if (graphic_info[graphic_local].bitmap != NULL)
922     return graphic_local;
923
924   if (graphic_info[graphic_global].bitmap != NULL)
925     return graphic_global;
926
927   return IMG_UNDEFINED;
928 }
929
930 static int getTitleSound(struct TitleControlInfo *tci)
931 {
932   boolean is_image = tci->is_image;
933   int initial = tci->initial;
934   int nr = tci->local_nr;
935   int mode = (initial ? GAME_MODE_TITLE_INITIAL : GAME_MODE_TITLE);
936   int base = (is_image ?
937               (initial ? SND_BACKGROUND_TITLESCREEN_INITIAL_1 :
938                          SND_BACKGROUND_TITLESCREEN_1) :
939               (initial ? SND_BACKGROUND_TITLEMESSAGE_INITIAL_1 :
940                          SND_BACKGROUND_TITLEMESSAGE_1));
941   int sound_global = menu.sound[mode];
942   int sound_local = base + nr;
943
944 #if 0
945   Debug("screens:getTitleSound", "%d, %d, %d: %d ['%s'], %d ['%s']",
946         nr, initial, is_image,
947         sound_global, getSoundListEntry(sound_global)->filename,
948         sound_local, getSoundListEntry(sound_local)->filename);
949 #endif
950
951   if (!strEqual(getSoundListEntry(sound_local)->filename, UNDEFINED_FILENAME))
952     return sound_local;
953
954   if (!strEqual(getSoundListEntry(sound_global)->filename, UNDEFINED_FILENAME))
955     return sound_global;
956
957   return SND_UNDEFINED;
958 }
959
960 static int getTitleMusic(struct TitleControlInfo *tci)
961 {
962   boolean is_image = tci->is_image;
963   int initial = tci->initial;
964   int nr = tci->local_nr;
965   int mode = (initial ? GAME_MODE_TITLE_INITIAL : GAME_MODE_TITLE);
966   int base = (is_image ?
967               (initial ? MUS_BACKGROUND_TITLESCREEN_INITIAL_1 :
968                          MUS_BACKGROUND_TITLESCREEN_1) :
969               (initial ? MUS_BACKGROUND_TITLEMESSAGE_INITIAL_1 :
970                          MUS_BACKGROUND_TITLEMESSAGE_1));
971   int music_global = menu.music[mode];
972   int music_local = base + nr;
973
974 #if 0
975   Debug("screens:getTitleMusic", "%d, %d, %d: %d ['%s'], %d ['%s']",
976         nr, initial, is_image,
977         music_global, getMusicListEntry(music_global)->filename,
978         music_local, getMusicListEntry(music_local)->filename);
979 #endif
980
981   if (!strEqual(getMusicListEntry(music_local)->filename, UNDEFINED_FILENAME))
982     return music_local;
983
984   if (!strEqual(getMusicListEntry(music_global)->filename, UNDEFINED_FILENAME))
985     return music_global;
986
987   return MUS_UNDEFINED;
988 }
989
990 static struct TitleFadingInfo getTitleFading(struct TitleControlInfo *tci)
991 {
992   boolean is_image = tci->is_image;
993   boolean initial = tci->initial;
994   boolean first = tci->first;
995   int nr = tci->local_nr;
996   struct TitleMessageInfo tmi;
997   struct TitleFadingInfo ti;
998
999   tmi = (is_image ? (initial ? (first ?
1000                                 titlescreen_initial_first[nr] :
1001                                 titlescreen_initial[nr])
1002                              : (first ?
1003                                 titlescreen_first[nr] :
1004                                 titlescreen[nr]))
1005                   : (initial ? (first ?
1006                                 titlemessage_initial_first[nr] :
1007                                 titlemessage_initial[nr])
1008                              : (first ?
1009                                 titlemessage_first[nr] :
1010                                 titlemessage[nr])));
1011
1012   ti.fade_mode  = tmi.fade_mode;
1013   ti.fade_delay = tmi.fade_delay;
1014   ti.post_delay = tmi.post_delay;
1015   ti.auto_delay = tmi.auto_delay;
1016   ti.auto_delay_unit = tmi.auto_delay_unit;
1017
1018   return ti;
1019 }
1020
1021 static int compareTitleControlInfo(const void *object1, const void *object2)
1022 {
1023   const struct TitleControlInfo *tci1 = (struct TitleControlInfo *)object1;
1024   const struct TitleControlInfo *tci2 = (struct TitleControlInfo *)object2;
1025   int compare_result;
1026
1027   if (tci1->initial != tci2->initial)
1028     compare_result = (tci1->initial ? -1 : +1);
1029   else if (tci1->sort_priority != tci2->sort_priority)
1030     compare_result = tci1->sort_priority - tci2->sort_priority;
1031   else if (tci1->is_image != tci2->is_image)
1032     compare_result = (tci1->is_image ? -1 : +1);
1033   else
1034     compare_result = tci1->local_nr - tci2->local_nr;
1035
1036   return compare_result;
1037 }
1038
1039 static void InitializeTitleControlsExt_AddTitleInfo(boolean is_image,
1040                                                     boolean initial,
1041                                                     int nr, int sort_priority)
1042 {
1043   title_controls[num_title_screens].is_image = is_image;
1044   title_controls[num_title_screens].initial = initial;
1045   title_controls[num_title_screens].local_nr = nr;
1046   title_controls[num_title_screens].sort_priority = sort_priority;
1047
1048   title_controls[num_title_screens].first = FALSE;      // will be set later
1049
1050   num_title_screens++;
1051 }
1052
1053 static void InitializeTitleControls_CheckTitleInfo(boolean initial)
1054 {
1055   int i;
1056
1057   for (i = 0; i < MAX_NUM_TITLE_IMAGES; i++)
1058   {
1059     int graphic = getTitleScreenGraphic(i, initial);
1060     Bitmap *bitmap = graphic_info[graphic].bitmap;
1061     int sort_priority = graphic_info[graphic].sort_priority;
1062
1063     if (bitmap != NULL)
1064       InitializeTitleControlsExt_AddTitleInfo(TRUE, initial, i, sort_priority);
1065   }
1066
1067   for (i = 0; i < MAX_NUM_TITLE_MESSAGES; i++)
1068   {
1069     struct TitleMessageInfo *tmi = getTitleMessageInfo(i, initial);
1070     char *filename = getLevelSetTitleMessageFilename(i, initial);
1071     int sort_priority = tmi->sort_priority;
1072
1073     if (filename != NULL)
1074       InitializeTitleControlsExt_AddTitleInfo(FALSE, initial, i, sort_priority);
1075   }
1076 }
1077
1078 static void InitializeTitleControls(boolean show_title_initial)
1079 {
1080   num_title_screens = 0;
1081
1082   // 1st step: initialize title screens for game start (only when starting)
1083   if (show_title_initial)
1084     InitializeTitleControls_CheckTitleInfo(TRUE);
1085
1086   // 2nd step: initialize title screens for current level set
1087   InitializeTitleControls_CheckTitleInfo(FALSE);
1088
1089   // sort title screens according to sort_priority and title number
1090   qsort(title_controls, num_title_screens, sizeof(struct TitleControlInfo),
1091         compareTitleControlInfo);
1092
1093   // mark first title screen
1094   title_controls[0].first = TRUE;
1095 }
1096
1097 static boolean visibleMenuPos(struct MenuPosInfo *pos)
1098 {
1099   return (pos != NULL && pos->x != -1 && pos->y != -1);
1100 }
1101
1102 static boolean visibleTextPos(struct TextPosInfo *pos)
1103 {
1104   return (pos != NULL && pos->x != -1 && pos->y != -1);
1105 }
1106
1107 static void InitializeMainControls(void)
1108 {
1109   boolean local_team_mode = (!network.enabled && setup.team_mode);
1110   int i;
1111
1112   // set main control text values to dynamically determined values
1113   sprintf(main_text_name,         "%s",   local_team_mode ? "Team:" : "Name:");
1114
1115   strcpy(main_text_first_level,  int2str(leveldir_current->first_level,
1116                                          menu.main.text.first_level.size));
1117   strcpy(main_text_last_level,   int2str(leveldir_current->last_level,
1118                                          menu.main.text.last_level.size));
1119   strcpy(main_text_level_number, int2str(level_nr,
1120                                          menu.main.text.level_number.size));
1121
1122   main_text_level_year          = leveldir_current->year;
1123   main_text_level_imported_from = leveldir_current->imported_from;
1124   main_text_level_imported_by   = leveldir_current->imported_by;
1125   main_text_level_tested_by     = leveldir_current->tested_by;
1126
1127   main_text_title_1 = getConfigProgramTitleString();
1128   main_text_title_2 = getConfigProgramCopyrightString();
1129   main_text_title_3 = getConfigProgramCompanyString();
1130
1131   // set main control screen positions to dynamically determined values
1132   for (i = 0; main_controls[i].nr != -1; i++)
1133   {
1134     struct MainControlInfo *mci = &main_controls[i];
1135     int nr                         = mci->nr;
1136     struct MenuPosInfo *pos_button = mci->pos_button;
1137     struct TextPosInfo *pos_text   = mci->pos_text;
1138     struct TextPosInfo *pos_input  = mci->pos_input;
1139     char *text                     = (mci->text  ? *mci->text  : NULL);
1140     char *input                    = (mci->input ? *mci->input : NULL);
1141     int button_graphic             = mci->button_graphic;
1142     int font_text                  = (pos_text  ? pos_text->font  : -1);
1143     int font_input                 = (pos_input ? pos_input->font : -1);
1144
1145     int font_text_width   = (font_text  != -1 ? getFontWidth(font_text)   : 0);
1146     int font_text_height  = (font_text  != -1 ? getFontHeight(font_text)  : 0);
1147     int font_input_width  = (font_input != -1 ? getFontWidth(font_input)  : 0);
1148     int font_input_height = (font_input != -1 ? getFontHeight(font_input) : 0);
1149     int text_chars  = (text  != NULL ? strlen(text)  : 0);
1150     int input_chars = (input != NULL ? strlen(input) : 0);
1151
1152     int button_width =
1153       (button_graphic != -1 ? graphic_info[button_graphic].width  : 0);
1154     int button_height =
1155       (button_graphic != -1 ? graphic_info[button_graphic].height : 0);
1156     int text_width   = font_text_width * text_chars;
1157     int text_height  = font_text_height;
1158     int input_width  = font_input_width * input_chars;
1159     int input_height = font_input_height;
1160
1161     if (nr == MAIN_CONTROL_NAME)
1162     {
1163       menu.main.input.name.width  = input_width;
1164       menu.main.input.name.height = input_height;
1165     }
1166
1167     if (pos_button != NULL)             // (x/y may be -1/-1 here)
1168     {
1169       pos_button->width  = button_width;
1170       pos_button->height = button_height;
1171     }
1172
1173     if (pos_text != NULL)               // (x/y may be -1/-1 here)
1174     {
1175       // calculate text size -- needed for text alignment
1176       boolean calculate_text_size = (text != NULL);
1177
1178       if (pos_text->width == -1 || calculate_text_size)
1179         pos_text->width = text_width;
1180       if (pos_text->height == -1 || calculate_text_size)
1181         pos_text->height = text_height;
1182
1183       if (visibleMenuPos(pos_button))
1184       {
1185         if (pos_text->x == -1)
1186           pos_text->x = pos_button->x + pos_button->width;
1187         if (pos_text->y == -1)
1188           pos_text->y =
1189             pos_button->y + (pos_button->height - pos_text->height) / 2;
1190       }
1191     }
1192
1193     if (pos_input != NULL)              // (x/y may be -1/-1 here)
1194     {
1195       if (visibleTextPos(pos_text))
1196       {
1197         if (pos_input->x == -1)
1198           pos_input->x = pos_text->x + pos_text->width;
1199         if (pos_input->y == -1)
1200           pos_input->y = pos_text->y;
1201       }
1202
1203       if (pos_input->width == -1)
1204         pos_input->width = input_width;
1205       if (pos_input->height == -1)
1206         pos_input->height = input_height;
1207     }
1208   }
1209 }
1210
1211 static void DrawPressedGraphicThruMask(int dst_x, int dst_y,
1212                                        int graphic, boolean pressed)
1213 {
1214   struct GraphicInfo *g = &graphic_info[graphic];
1215   Bitmap *src_bitmap;
1216   int src_x, src_y;
1217   int xoffset = (pressed ? g->pressed_xoffset : 0);
1218   int yoffset = (pressed ? g->pressed_yoffset : 0);
1219
1220   getFixedGraphicSource(graphic, 0, &src_bitmap, &src_x, &src_y);
1221
1222   BlitBitmapMasked(src_bitmap, drawto, src_x + xoffset, src_y + yoffset,
1223                    g->width, g->height, dst_x, dst_y);
1224 }
1225
1226 static void DrawCursorAndText_Main_Ext(int nr, boolean active_text,
1227                                        boolean active_input,
1228                                        boolean pressed_button)
1229 {
1230   int i;
1231
1232   for (i = 0; main_controls[i].nr != -1; i++)
1233   {
1234     struct MainControlInfo *mci = &main_controls[i];
1235
1236     if (mci->nr == nr || nr == -1)
1237     {
1238       struct MenuPosInfo *pos_button = mci->pos_button;
1239       struct TextPosInfo *pos_text   = mci->pos_text;
1240       struct TextPosInfo *pos_input  = mci->pos_input;
1241       char *text                     = (mci->text  ? *mci->text  : NULL);
1242       char *input                    = (mci->input ? *mci->input : NULL);
1243       int button_graphic             = mci->button_graphic;
1244       int font_text                  = (pos_text  ? pos_text->font  : -1);
1245       int font_input                 = (pos_input ? pos_input->font : -1);
1246
1247       if (active_text)
1248       {
1249         button_graphic = BUTTON_ACTIVE(button_graphic);
1250         font_text = FONT_ACTIVE(font_text);
1251       }
1252
1253       if (active_input)
1254       {
1255         font_input = FONT_ACTIVE(font_input);
1256       }
1257
1258       if (visibleMenuPos(pos_button))
1259       {
1260         struct MenuPosInfo *pos = pos_button;
1261         int x = mSX + pos->x;
1262         int y = mSY + pos->y;
1263
1264         DrawBackgroundForGraphic(x, y, pos->width, pos->height, button_graphic);
1265         DrawPressedGraphicThruMask(x, y, button_graphic, pressed_button);
1266       }
1267
1268       if (visibleTextPos(pos_text) && text != NULL)
1269       {
1270         struct TextPosInfo *pos = pos_text;
1271         int x = mSX + ALIGNED_TEXT_XPOS(pos);
1272         int y = mSY + ALIGNED_TEXT_YPOS(pos);
1273
1274 #if 1
1275         // (check why/if this is needed)
1276         DrawBackgroundForFont(x, y, pos->width, pos->height, font_text);
1277 #endif
1278         DrawText(x, y, text, font_text);
1279       }
1280
1281       if (visibleTextPos(pos_input) && input != NULL)
1282       {
1283         struct TextPosInfo *pos = pos_input;
1284         int x = mSX + ALIGNED_TEXT_XPOS(pos);
1285         int y = mSY + ALIGNED_TEXT_YPOS(pos);
1286
1287 #if 1
1288         // (check why/if this is needed)
1289         DrawBackgroundForFont(x, y, pos->width, pos->height, font_input);
1290 #endif
1291         DrawText(x, y, input, font_input);
1292       }
1293     }
1294   }
1295 }
1296
1297 static void DrawCursorAndText_Main(int nr, boolean active_text,
1298                                    boolean pressed_button)
1299 {
1300   DrawCursorAndText_Main_Ext(nr, active_text, FALSE, pressed_button);
1301 }
1302
1303 #if 0
1304 static void DrawCursorAndText_Main_Input(int nr, boolean active_text,
1305                                          boolean pressed_button)
1306 {
1307   DrawCursorAndText_Main_Ext(nr, active_text, TRUE, pressed_button);
1308 }
1309 #endif
1310
1311 static struct MainControlInfo *getMainControlInfo(int nr)
1312 {
1313   int i;
1314
1315   for (i = 0; main_controls[i].nr != -1; i++)
1316     if (main_controls[i].nr == nr)
1317       return &main_controls[i];
1318
1319   return NULL;
1320 }
1321
1322 static boolean insideMenuPosRect(struct MenuPosInfo *rect, int x, int y)
1323 {
1324   if (rect == NULL)
1325     return FALSE;
1326
1327   int rect_x = ALIGNED_TEXT_XPOS(rect);
1328   int rect_y = ALIGNED_TEXT_YPOS(rect);
1329
1330   return (x >= rect_x && x < rect_x + rect->width &&
1331           y >= rect_y && y < rect_y + rect->height);
1332 }
1333
1334 static boolean insideTextPosRect(struct TextPosInfo *rect, int x, int y)
1335 {
1336   if (rect == NULL)
1337     return FALSE;
1338
1339   int rect_x = ALIGNED_TEXT_XPOS(rect);
1340   int rect_y = ALIGNED_TEXT_YPOS(rect);
1341
1342 #if 0
1343   Debug("screens:insideTextPosRect",
1344         "(%d, %d), (%d, %d) [%d, %d] (%d, %d) => %d",
1345         x, y, rect_x, rect_y, rect->x, rect->y, rect->width, rect->height,
1346         (x >= rect_x && x < rect_x + rect->width &&
1347          y >= rect_y && y < rect_y + rect->height));
1348 #endif
1349
1350   return (x >= rect_x && x < rect_x + rect->width &&
1351           y >= rect_y && y < rect_y + rect->height);
1352 }
1353
1354 static boolean insidePreviewRect(struct PreviewInfo *preview, int x, int y)
1355 {
1356   int rect_width  = preview->xsize * preview->tile_size;
1357   int rect_height = preview->ysize * preview->tile_size;
1358   int rect_x = ALIGNED_XPOS(preview->x, rect_width,  preview->align);
1359   int rect_y = ALIGNED_YPOS(preview->y, rect_height, preview->valign);
1360
1361   return (x >= rect_x && x < rect_x + rect_width &&
1362           y >= rect_y && y < rect_y + rect_height);
1363 }
1364
1365 static void AdjustScrollbar(int id, int items_max, int items_visible,
1366                             int item_position)
1367 {
1368   struct GadgetInfo *gi = screen_gadget[id];
1369
1370   if (item_position > items_max - items_visible)
1371     item_position = items_max - items_visible;
1372
1373   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
1374                GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
1375                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
1376 }
1377
1378 static void AdjustChooseTreeScrollbar(int id, int first_entry, TreeInfo *ti)
1379 {
1380   AdjustScrollbar(id, numTreeInfoInGroup(ti), NUM_MENU_ENTRIES_ON_SCREEN,
1381                   first_entry);
1382 }
1383
1384 static void clearMenuListArea(void)
1385 {
1386   int scrollbar_xpos = mSX + SC_SCROLLBAR_XPOS + menu.scrollbar_xoffset;
1387
1388   // correct scrollbar position if placed outside menu (playfield) area
1389   if (scrollbar_xpos > SX + SC_SCROLLBAR_XPOS)
1390     scrollbar_xpos = SX + SC_SCROLLBAR_XPOS;
1391
1392   // clear menu list area, but not title or scrollbar
1393   DrawBackground(mSX, mSY + MENU_SCREEN_START_YPOS * 32,
1394                  scrollbar_xpos - mSX, NUM_MENU_ENTRIES_ON_SCREEN * 32);
1395 }
1396
1397 static void drawCursorExt(int xpos, int ypos, boolean active, int graphic)
1398 {
1399   static int cursor_array[MAX_LEV_FIELDY];
1400   int x = amSX + TILEX * xpos;
1401   int y = amSY + TILEY * (MENU_SCREEN_START_YPOS + ypos);
1402
1403   if (xpos == 0)
1404   {
1405     if (graphic != -1)
1406       cursor_array[ypos] = graphic;
1407     else
1408       graphic = cursor_array[ypos];
1409   }
1410
1411   if (active)
1412     graphic = BUTTON_ACTIVE(graphic);
1413
1414   DrawBackgroundForGraphic(x, y, TILEX, TILEY, graphic);
1415   DrawFixedGraphicThruMaskExt(drawto, x, y, graphic, 0);
1416 }
1417
1418 static void initCursor(int ypos, int graphic)
1419 {
1420   drawCursorExt(0, ypos, FALSE, graphic);
1421 }
1422
1423 static void drawCursor(int ypos, boolean active)
1424 {
1425   drawCursorExt(0, ypos, active, -1);
1426 }
1427
1428 static void drawCursorXY(int xpos, int ypos, int graphic)
1429 {
1430   drawCursorExt(xpos, ypos, FALSE, graphic);
1431 }
1432
1433 static void drawChooseTreeCursor(int ypos, boolean active)
1434 {
1435   drawCursorExt(0, ypos, active, -1);
1436 }
1437
1438 static int getChooseTreeEditFont(boolean active)
1439 {
1440   return (active ? FONT_MENU_2_ACTIVE : FONT_MENU_2);
1441 }
1442
1443 static int getChooseTreeEditXPos(int pos)
1444 {
1445   boolean has_scrollbar = screen_gadget[SCREEN_CTRL_ID_SCROLL_VERTICAL]->mapped;
1446   int xoffset = (has_scrollbar ? -1 : 0);
1447   int xpos = MENU_SCREEN_TEXT2_XPOS + xoffset;
1448   int sx = amSX + xpos * TILEX;
1449   int font_nr = getChooseTreeEditFont(FALSE);
1450   int width = getTextWidth(STR_CHOOSE_TREE_EDIT, font_nr);
1451
1452   return (pos == POS_RIGHT ? sx + width - 1 : sx);
1453 }
1454
1455 static int getChooseTreeEditYPos(int ypos_raw)
1456 {
1457   int ypos = MENU_SCREEN_START_YPOS + ypos_raw;
1458   int sy = amSY + ypos * TILEY;
1459
1460   return sy;
1461 }
1462
1463 static void drawChooseTreeEdit(int ypos_raw, boolean active)
1464 {
1465   int sx = getChooseTreeEditXPos(POS_LEFT);
1466   int sy = getChooseTreeEditYPos(ypos_raw);
1467   int font_nr = getChooseTreeEditFont(active);
1468
1469   DrawText(sx, sy, STR_CHOOSE_TREE_EDIT, font_nr);
1470 }
1471
1472 static void DrawHeadline(void)
1473 {
1474   DrawTextSCentered(MENU_TITLE1_YPOS, FONT_TITLE_1, main_text_title_1);
1475   DrawTextSCentered(MENU_TITLE2_YPOS, FONT_TITLE_2, main_text_title_2);
1476 }
1477
1478 static void DrawTitleScreenImage(int nr, boolean initial)
1479 {
1480   int graphic = getTitleScreenGraphic(nr, initial);
1481   Bitmap *bitmap = graphic_info[graphic].bitmap;
1482   int width  = graphic_info[graphic].width;
1483   int height = graphic_info[graphic].height;
1484   int src_x = graphic_info[graphic].src_x;
1485   int src_y = graphic_info[graphic].src_y;
1486   int dst_x, dst_y;
1487
1488   if (bitmap == NULL)
1489     return;
1490
1491   if (width > WIN_XSIZE)
1492   {
1493     // image width too large for window => center image horizontally
1494     src_x = (width - WIN_XSIZE) / 2;
1495     width = WIN_XSIZE;
1496   }
1497
1498   if (height > WIN_YSIZE)
1499   {
1500     // image height too large for window => center image vertically
1501     src_y = (height - WIN_YSIZE) / 2;
1502     height = WIN_YSIZE;
1503   }
1504
1505   // always display title screens centered
1506   dst_x = (WIN_XSIZE - width) / 2;
1507   dst_y = (WIN_YSIZE - height) / 2;
1508
1509   SetDrawBackgroundMask(REDRAW_ALL);
1510   SetWindowBackgroundImage(getTitleBackground(nr, initial, TRUE));
1511
1512   ClearRectangleOnBackground(drawto, 0, 0, WIN_XSIZE, WIN_YSIZE);
1513
1514   if (DrawingOnBackground(dst_x, dst_y))
1515     BlitBitmapMasked(bitmap, drawto, src_x, src_y, width, height, dst_x, dst_y);
1516   else
1517     BlitBitmap(bitmap, drawto, src_x, src_y, width, height, dst_x, dst_y);
1518
1519   redraw_mask = REDRAW_ALL;
1520 }
1521
1522 static void DrawTitleScreenMessage(int nr, boolean initial)
1523 {
1524   char *filename = getLevelSetTitleMessageFilename(nr, initial);
1525   struct TitleMessageInfo *tmi = getTitleMessageInfo(nr, initial);
1526
1527   if (filename == NULL)
1528     return;
1529
1530   // force TITLE font on title message screen
1531   SetFontStatus(getTitleMessageGameMode(initial));
1532
1533   // if chars *and* width set to "-1", automatically determine width
1534   if (tmi->chars == -1 && tmi->width == -1)
1535     tmi->width = viewport.window[game_status].width;
1536
1537   // if lines *and* height set to "-1", automatically determine height
1538   if (tmi->lines == -1 && tmi->height == -1)
1539     tmi->height = viewport.window[game_status].height;
1540
1541   // if chars set to "-1", automatically determine by text and font width
1542   if (tmi->chars == -1)
1543     tmi->chars = tmi->width / getFontWidth(tmi->font);
1544   else
1545     tmi->width = tmi->chars * getFontWidth(tmi->font);
1546
1547   // if lines set to "-1", automatically determine by text and font height
1548   if (tmi->lines == -1)
1549     tmi->lines = tmi->height / getFontHeight(tmi->font);
1550   else
1551     tmi->height = tmi->lines * getFontHeight(tmi->font);
1552
1553   // if x set to "-1", automatically determine by width and alignment
1554   if (tmi->x == -1)
1555     tmi->x = -1 * ALIGNED_XPOS(0, tmi->width, tmi->align);
1556
1557   // if y set to "-1", automatically determine by height and alignment
1558   if (tmi->y == -1)
1559     tmi->y = -1 * ALIGNED_YPOS(0, tmi->height, tmi->valign);
1560
1561   SetDrawBackgroundMask(REDRAW_ALL);
1562   SetWindowBackgroundImage(getTitleBackground(nr, initial, FALSE));
1563
1564   ClearRectangleOnBackground(drawto, 0, 0, WIN_XSIZE, WIN_YSIZE);
1565
1566   DrawTextFile(ALIGNED_TEXT_XPOS(tmi), ALIGNED_TEXT_YPOS(tmi),
1567                filename, tmi->font, tmi->chars, -1, tmi->lines, 0, -1,
1568                tmi->autowrap, tmi->centered, tmi->parse_comments);
1569
1570   ResetFontStatus();
1571 }
1572
1573 static void DrawTitleScreen(void)
1574 {
1575   KeyboardAutoRepeatOff();
1576
1577   HandleTitleScreen(0, 0, 0, 0, MB_MENU_INITIALIZE);
1578 }
1579
1580 static boolean CheckTitleScreen(boolean levelset_has_changed)
1581 {
1582   static boolean show_title_initial = TRUE;
1583   boolean show_titlescreen = FALSE;
1584
1585   // needed to be able to skip title screen, if no image or message defined
1586   InitializeTitleControls(show_title_initial);
1587
1588   if (setup.show_titlescreen && (show_title_initial || levelset_has_changed))
1589     show_titlescreen = TRUE;
1590
1591   // show initial title images and messages only once at program start
1592   show_title_initial = FALSE;
1593
1594   return (show_titlescreen && num_title_screens > 0);
1595 }
1596
1597 void DrawMainMenu(void)
1598 {
1599   static LevelDirTree *leveldir_last_valid = NULL;
1600   boolean levelset_has_changed = FALSE;
1601   int fade_mask = REDRAW_FIELD;
1602
1603   LimitScreenUpdates(FALSE);
1604
1605   FadeSetLeaveScreen();
1606
1607   // do not fade out here -- function may continue and fade on editor screen
1608
1609   UnmapAllGadgets();
1610   FadeMenuSoundsAndMusic();
1611
1612   ExpireSoundLoops(FALSE);
1613
1614   KeyboardAutoRepeatOn();
1615
1616   audio.sound_deactivated = FALSE;
1617
1618   GetPlayerConfig();
1619
1620   // needed if last screen was the playing screen, invoked from level editor
1621   if (level_editor_test_game)
1622   {
1623     CloseDoor(DOOR_CLOSE_ALL);
1624
1625     SetGameStatus(GAME_MODE_EDITOR);
1626
1627     DrawLevelEd();
1628
1629     return;
1630   }
1631
1632   // leveldir_current may be invalid (level group, parent link)
1633   if (!validLevelSeries(leveldir_current))
1634     leveldir_current = getFirstValidTreeInfoEntry(leveldir_last_valid);
1635
1636   if (leveldir_current != leveldir_last_valid)
1637     levelset_has_changed = TRUE;
1638
1639   // store valid level series information
1640   leveldir_last_valid = leveldir_current;
1641
1642   init_last = init;                     // switch to new busy animation
1643
1644   // needed if last screen (level choice) changed graphics, sounds or music
1645   ReloadCustomArtwork(0);
1646
1647   if (CheckTitleScreen(levelset_has_changed))
1648   {
1649     SetGameStatus(GAME_MODE_TITLE);
1650
1651     DrawTitleScreen();
1652
1653     return;
1654   }
1655
1656   if (redraw_mask & REDRAW_ALL)
1657     fade_mask = REDRAW_ALL;
1658
1659   if (CheckFadeAll())
1660     fade_mask = REDRAW_ALL;
1661
1662   FadeOut(fade_mask);
1663
1664   // needed if different viewport properties defined for menues
1665   ChangeViewportPropertiesIfNeeded();
1666
1667   SetDrawtoField(DRAW_TO_BACKBUFFER);
1668
1669   // level_nr may have been set to value over handicap with level editor
1670   if (setup.handicap && level_nr > leveldir_current->handicap_level)
1671     level_nr = leveldir_current->handicap_level;
1672
1673   LoadLevel(level_nr);
1674   LoadScore(level_nr);
1675
1676   SaveLevelSetup_SeriesInfo();
1677
1678   // set this after "ChangeViewportPropertiesIfNeeded()" (which may reset it)
1679   SetDrawDeactivationMask(REDRAW_NONE);
1680   SetDrawBackgroundMask(REDRAW_FIELD);
1681
1682   SetMainBackgroundImage(IMG_BACKGROUND_MAIN);
1683
1684 #if 0
1685   if (fade_mask == REDRAW_ALL)
1686     RedrawGlobalBorder();
1687 #endif
1688
1689   ClearField();
1690
1691   InitializeMainControls();
1692
1693   DrawCursorAndText_Main(-1, FALSE, FALSE);
1694   DrawPreviewLevelInitial();
1695   DrawNetworkPlayers();
1696
1697   HandleMainMenu(0, 0, 0, 0, MB_MENU_INITIALIZE);
1698
1699   TapeStop();
1700   if (TAPE_IS_EMPTY(tape))
1701     LoadTape(level_nr);
1702   DrawCompleteVideoDisplay();
1703
1704   PlayMenuSoundsAndMusic();
1705
1706   // create gadgets for main menu screen
1707   FreeScreenGadgets();
1708   CreateScreenGadgets();
1709
1710   // may be required if audio buttons shown on tape and changed in setup menu
1711   FreeGameButtons();
1712   CreateGameButtons();
1713
1714   // map gadgets for main menu screen
1715   MapTapeButtons();
1716   MapScreenMenuGadgets(SCREEN_MASK_MAIN);
1717   UpdateScreenMenuGadgets(SCREEN_MASK_MAIN_HAS_SOLUTION, hasSolutionTape());
1718
1719   // copy actual game door content to door double buffer for OpenDoor()
1720   BlitBitmap(drawto, bitmap_db_door_1, DX, DY, DXSIZE, DYSIZE, 0, 0);
1721   BlitBitmap(drawto, bitmap_db_door_2, VX, VY, VXSIZE, VYSIZE, 0, 0);
1722
1723   OpenDoor(GetDoorState() | DOOR_NO_DELAY | DOOR_FORCE_REDRAW);
1724
1725   DrawMaskedBorder(fade_mask);
1726
1727   FadeIn(fade_mask);
1728   FadeSetEnterMenu();
1729
1730   // update screen area with special editor door
1731   redraw_mask |= REDRAW_ALL;
1732   BackToFront();
1733
1734   SetMouseCursor(CURSOR_DEFAULT);
1735
1736   OpenDoor(DOOR_CLOSE_1 | DOOR_OPEN_2);
1737 }
1738
1739 static void gotoTopLevelDir(void)
1740 {
1741   // move upwards until inside (but not above) top level directory
1742   while (leveldir_current->node_parent &&
1743          !strEqual(leveldir_current->node_parent->subdir, STRING_TOP_DIRECTORY))
1744   {
1745     // write a "path" into level tree for easy navigation to last level
1746     if (leveldir_current->node_parent->node_group->cl_first == -1)
1747     {
1748       int num_leveldirs = numTreeInfoInGroup(leveldir_current);
1749       int leveldir_pos = getPosFromTreeInfo(leveldir_current);
1750       int num_page_entries = MIN(num_leveldirs, NUM_MENU_ENTRIES_ON_SCREEN);
1751       int cl_first, cl_cursor;
1752
1753       cl_first = MAX(0, leveldir_pos - num_page_entries + 1);
1754       cl_cursor = leveldir_pos - cl_first;
1755
1756       leveldir_current->node_parent->node_group->cl_first = cl_first;
1757       leveldir_current->node_parent->node_group->cl_cursor = cl_cursor;
1758     }
1759
1760     leveldir_current = leveldir_current->node_parent;
1761   }
1762 }
1763
1764 static unsigned int getAutoDelayCounter(struct TitleFadingInfo *fi)
1765 {
1766   boolean use_frame_counter = (fi->auto_delay_unit == AUTO_DELAY_UNIT_FRAMES);
1767
1768   return (use_frame_counter ? video.frame_counter : Counter());
1769 }
1770
1771 static boolean TitleAutoDelayReached(unsigned int *counter_var,
1772                                      struct TitleFadingInfo *fi)
1773 {
1774   return DelayReachedExt(counter_var, fi->auto_delay, getAutoDelayCounter(fi));
1775 }
1776
1777 static void ResetTitleAutoDelay(unsigned int *counter_var,
1778                                 struct TitleFadingInfo *fi)
1779 {
1780   *counter_var = getAutoDelayCounter(fi);
1781 }
1782
1783 void HandleTitleScreen(int mx, int my, int dx, int dy, int button)
1784 {
1785   static unsigned int title_delay = 0;
1786   static int title_screen_nr = 0;
1787   static int last_sound = -1, last_music = -1;
1788   boolean return_to_main_menu = FALSE;
1789   struct TitleControlInfo *tci;
1790   int sound, music;
1791
1792   if (button == MB_MENU_INITIALIZE)
1793   {
1794     title_delay = 0;
1795     title_screen_nr = 0;
1796     tci = &title_controls[title_screen_nr];
1797
1798     SetAnimStatus(getTitleAnimMode(tci));
1799
1800     last_sound = SND_UNDEFINED;
1801     last_music = MUS_UNDEFINED;
1802
1803     if (num_title_screens != 0)
1804     {
1805       FadeSetEnterScreen();
1806
1807       // use individual title fading instead of global "enter screen" fading
1808       fading = getTitleFading(tci);
1809     }
1810
1811     if (game_status_last_screen == GAME_MODE_INFO)
1812     {
1813       if (num_title_screens == 0)
1814       {
1815         // switch game mode from title screen mode back to info screen mode
1816         SetGameStatus(GAME_MODE_INFO);
1817
1818         // store that last screen was info screen, not main menu screen
1819         game_status_last_screen = GAME_MODE_INFO;
1820
1821         DrawInfoScreen_NotAvailable("Title screen information:",
1822                                     "No title screen for this level set.");
1823         return;
1824       }
1825     }
1826
1827     FadeMenuSoundsAndMusic();
1828
1829     FadeOut(REDRAW_ALL);
1830
1831     // title screens may have different window size
1832     ChangeViewportPropertiesIfNeeded();
1833
1834     // only required to update logic for redrawing global border
1835     ClearField();
1836
1837     if (tci->is_image)
1838       DrawTitleScreenImage(tci->local_nr, tci->initial);
1839     else
1840       DrawTitleScreenMessage(tci->local_nr, tci->initial);
1841
1842     sound = getTitleSound(tci);
1843     music = getTitleMusic(tci);
1844
1845     if (sound != last_sound)
1846       PlayMenuSoundExt(sound);
1847     if (music != last_music)
1848       PlayMenuMusicExt(music);
1849
1850     last_sound = sound;
1851     last_music = music;
1852
1853     SetMouseCursor(CURSOR_NONE);
1854
1855     FadeIn(REDRAW_ALL);
1856
1857     ResetTitleAutoDelay(&title_delay, &fading);
1858
1859     return;
1860   }
1861
1862   if (fading.auto_delay > 0 && TitleAutoDelayReached(&title_delay, &fading))
1863     button = MB_MENU_CHOICE;
1864
1865   if (button == MB_MENU_LEAVE)
1866   {
1867     return_to_main_menu = TRUE;
1868   }
1869   else if (button == MB_MENU_CHOICE)
1870   {
1871     if (game_status_last_screen == GAME_MODE_INFO && num_title_screens == 0)
1872     {
1873       SetGameStatus(GAME_MODE_INFO);
1874
1875       info_mode = INFO_MODE_MAIN;
1876
1877       DrawInfoScreen();
1878
1879       return;
1880     }
1881
1882     title_screen_nr++;
1883
1884     if (title_screen_nr < num_title_screens)
1885     {
1886       tci = &title_controls[title_screen_nr];
1887
1888       SetAnimStatus(getTitleAnimMode(tci));
1889
1890       sound = getTitleSound(tci);
1891       music = getTitleMusic(tci);
1892
1893       if (last_sound != SND_UNDEFINED && sound != last_sound)
1894         FadeSound(last_sound);
1895       if (last_music != MUS_UNDEFINED && music != last_music)
1896         FadeMusic();
1897
1898       fading = getTitleFading(tci);
1899
1900       FadeOut(REDRAW_ALL);
1901
1902       if (tci->is_image)
1903         DrawTitleScreenImage(tci->local_nr, tci->initial);
1904       else
1905         DrawTitleScreenMessage(tci->local_nr, tci->initial);
1906
1907       sound = getTitleSound(tci);
1908       music = getTitleMusic(tci);
1909
1910       if (sound != last_sound)
1911         PlayMenuSoundExt(sound);
1912       if (music != last_music)
1913         PlayMenuMusicExt(music);
1914
1915       last_sound = sound;
1916       last_music = music;
1917
1918       FadeIn(REDRAW_ALL);
1919
1920       ResetTitleAutoDelay(&title_delay, &fading);
1921     }
1922     else
1923     {
1924       FadeMenuSoundsAndMusic();
1925
1926       return_to_main_menu = TRUE;
1927     }
1928   }
1929
1930   if (return_to_main_menu)
1931   {
1932     SetMouseCursor(CURSOR_DEFAULT);
1933
1934     // force full menu screen redraw after displaying title screens
1935     redraw_mask = REDRAW_ALL;
1936
1937     if (game_status_last_screen == GAME_MODE_INFO)
1938     {
1939       SetGameStatus(GAME_MODE_INFO);
1940
1941       info_mode = INFO_MODE_MAIN;
1942
1943       DrawInfoScreen();
1944     }
1945     else        // default: return to main menu
1946     {
1947       SetGameStatus(GAME_MODE_MAIN);
1948
1949       DrawMainMenu();
1950     }
1951   }
1952 }
1953
1954 static void HandleMainMenu_SelectLevel(int step, int direction,
1955                                        int selected_level_nr)
1956 {
1957   int old_level_nr = level_nr;
1958   int new_level_nr;
1959
1960   if (selected_level_nr != NO_DIRECT_LEVEL_SELECT)
1961     new_level_nr = selected_level_nr;
1962   else
1963     new_level_nr = old_level_nr + step * direction;
1964
1965   if (new_level_nr < leveldir_current->first_level)
1966     new_level_nr = leveldir_current->first_level;
1967   if (new_level_nr > leveldir_current->last_level)
1968     new_level_nr = leveldir_current->last_level;
1969
1970   if (setup.handicap && new_level_nr > leveldir_current->handicap_level)
1971   {
1972     // skipping levels is only allowed when trying to skip single level
1973     if (setup.skip_levels && new_level_nr == old_level_nr + 1 &&
1974         Request("Level still unsolved! Skip despite handicap?", REQ_ASK))
1975     {
1976       leveldir_current->handicap_level++;
1977       SaveLevelSetup_SeriesInfo();
1978     }
1979
1980     new_level_nr = leveldir_current->handicap_level;
1981   }
1982
1983   if (new_level_nr != old_level_nr)
1984   {
1985     struct MainControlInfo *mci = getMainControlInfo(MAIN_CONTROL_LEVEL_NUMBER);
1986
1987     PlaySound(SND_MENU_ITEM_SELECTING);
1988
1989     level_nr = new_level_nr;
1990
1991     DrawText(mSX + mci->pos_text->x, mSY + mci->pos_text->y,
1992              int2str(level_nr, menu.main.text.level_number.size),
1993              mci->pos_text->font);
1994
1995     LoadLevel(level_nr);
1996     DrawPreviewLevelInitial();
1997
1998     TapeErase();
1999     LoadTape(level_nr);
2000     DrawCompleteVideoDisplay();
2001
2002     SaveLevelSetup_SeriesInfo();
2003
2004     UpdateScreenMenuGadgets(SCREEN_MASK_MAIN_HAS_SOLUTION, hasSolutionTape());
2005
2006     // force redraw of playfield area (may be reset at this point)
2007     redraw_mask |= REDRAW_FIELD;
2008   }
2009 }
2010
2011 void HandleMainMenu(int mx, int my, int dx, int dy, int button)
2012 {
2013   static int choice = MAIN_CONTROL_GAME;
2014   static boolean button_pressed_last = FALSE;
2015   boolean button_pressed = FALSE;
2016   int pos = choice;
2017   int i = 0;    // needed to prevent compiler warning due to bad code below
2018
2019   if (button == MB_MENU_INITIALIZE)
2020   {
2021     DrawCursorAndText_Main(choice, TRUE, FALSE);
2022
2023     return;
2024   }
2025
2026   if (mx || my)         // mouse input
2027   {
2028     pos = -1;
2029
2030     for (i = 0; main_controls[i].nr != -1; i++)
2031     {
2032       if (insideMenuPosRect(main_controls[i].pos_button, mx - mSX, my - mSY) ||
2033           insideTextPosRect(main_controls[i].pos_text,   mx - mSX, my - mSY) ||
2034           insideTextPosRect(main_controls[i].pos_input,  mx - mSX, my - mSY))
2035       {
2036         pos = main_controls[i].nr;
2037
2038         break;
2039       }
2040     }
2041
2042     // check if level preview was clicked
2043     if (insidePreviewRect(&preview, mx - SX, my - SY))
2044       pos = MAIN_CONTROL_GAME;
2045
2046     // handle pressed/unpressed state for active/inactive menu buttons
2047     // (if pos != -1, "i" contains index position corresponding to "pos")
2048     if (button &&
2049         pos >= MAIN_CONTROL_NAME && pos <= MAIN_CONTROL_QUIT &&
2050         insideMenuPosRect(main_controls[i].pos_button, mx - mSX, my - mSY))
2051       button_pressed = TRUE;
2052
2053     if (button_pressed != button_pressed_last)
2054     {
2055       DrawCursorAndText_Main(choice, TRUE, button_pressed);
2056
2057       if (button_pressed)
2058         PlaySound(SND_MENU_BUTTON_PRESSING);
2059       else
2060         PlaySound(SND_MENU_BUTTON_RELEASING);
2061     }
2062   }
2063   else if (dx || dy)    // keyboard input
2064   {
2065     if (dx > 0 && (choice == MAIN_CONTROL_INFO ||
2066                    choice == MAIN_CONTROL_SETUP))
2067       button = MB_MENU_CHOICE;
2068     else if (dy)
2069       pos = choice + dy;
2070   }
2071
2072   if (pos == MAIN_CONTROL_FIRST_LEVEL && !button)
2073   {
2074     HandleMainMenu_SelectLevel(MAX_LEVELS, -1, NO_DIRECT_LEVEL_SELECT);
2075   }
2076   else if (pos == MAIN_CONTROL_LAST_LEVEL && !button)
2077   {
2078     HandleMainMenu_SelectLevel(MAX_LEVELS, +1, NO_DIRECT_LEVEL_SELECT);
2079   }
2080   else if (pos == MAIN_CONTROL_LEVEL_NUMBER && !button)
2081   {
2082     CloseDoor(DOOR_CLOSE_2);
2083
2084     SetGameStatus(GAME_MODE_LEVELNR);
2085
2086     DrawChooseLevelNr();
2087   }
2088   else if (pos >= MAIN_CONTROL_NAME && pos <= MAIN_CONTROL_QUIT)
2089   {
2090     if (button)
2091     {
2092       if (pos != choice)
2093       {
2094         PlaySound(SND_MENU_ITEM_ACTIVATING);
2095
2096         DrawCursorAndText_Main(choice, FALSE, FALSE);
2097         DrawCursorAndText_Main(pos, TRUE, button_pressed);
2098
2099         choice = pos;
2100       }
2101       else if (dx != 0)
2102       {
2103         if (choice != MAIN_CONTROL_INFO &&
2104             choice != MAIN_CONTROL_SETUP)
2105           HandleMainMenu_SelectLevel(1, dx, NO_DIRECT_LEVEL_SELECT);
2106       }
2107     }
2108     else
2109     {
2110       PlaySound(SND_MENU_ITEM_SELECTING);
2111
2112       if (pos == MAIN_CONTROL_NAME)
2113       {
2114         if ((mx || my) &&
2115             insideTextPosRect(main_controls[i].pos_text, mx - mSX, my - mSY))
2116         {
2117           // special case: menu text "name/team" clicked -- toggle team mode
2118           setup.team_mode = !setup.team_mode;
2119
2120           InitializeMainControls();
2121           DrawCursorAndText_Main(choice, TRUE, FALSE);
2122
2123           DrawPreviewPlayers();
2124         }
2125         else
2126         {
2127           if (setup.multiple_users)
2128           {
2129             CloseDoor(DOOR_CLOSE_2);
2130
2131             SetGameStatus(GAME_MODE_NAMES);
2132
2133             DrawChoosePlayerName();
2134           }
2135           else
2136           {
2137             SetGameStatus(GAME_MODE_PSEUDO_TYPENAME);
2138
2139             DrawTypeName();
2140           }
2141         }
2142       }
2143       else if (pos == MAIN_CONTROL_LEVELS)
2144       {
2145         if (leveldir_first)
2146         {
2147           CloseDoor(DOOR_CLOSE_2);
2148
2149           SetGameStatus(GAME_MODE_LEVELS);
2150
2151           SaveLevelSetup_LastSeries();
2152           SaveLevelSetup_SeriesInfo();
2153
2154           if (setup.internal.choose_from_top_leveldir)
2155             gotoTopLevelDir();
2156
2157           DrawChooseLevelSet();
2158         }
2159       }
2160       else if (pos == MAIN_CONTROL_SCORES)
2161       {
2162         CloseDoor(DOOR_CLOSE_2);
2163
2164         SetGameStatus(GAME_MODE_SCORES);
2165
2166         DrawHallOfFame(level_nr, -1);
2167       }
2168       else if (pos == MAIN_CONTROL_EDITOR)
2169       {
2170         if (leveldir_current->readonly &&
2171             setup.editor.show_read_only_warning)
2172           Request("This level is read-only!", REQ_CONFIRM | REQ_STAY_OPEN);
2173
2174         CloseDoor(DOOR_CLOSE_ALL);
2175
2176         SetGameStatus(GAME_MODE_EDITOR);
2177
2178         FadeSetEnterScreen();
2179
2180         DrawLevelEd();
2181       }
2182       else if (pos == MAIN_CONTROL_INFO)
2183       {
2184         CloseDoor(DOOR_CLOSE_2);
2185
2186         SetGameStatus(GAME_MODE_INFO);
2187
2188         info_mode = INFO_MODE_MAIN;
2189
2190         DrawInfoScreen();
2191       }
2192       else if (pos == MAIN_CONTROL_GAME)
2193       {
2194         StartGameActions(network.enabled, setup.autorecord, level.random_seed);
2195       }
2196       else if (pos == MAIN_CONTROL_SETUP)
2197       {
2198         CloseDoor(DOOR_CLOSE_2);
2199
2200         SetGameStatus(GAME_MODE_SETUP);
2201
2202         setup_mode = SETUP_MODE_MAIN;
2203
2204         DrawSetupScreen();
2205       }
2206       else if (pos == MAIN_CONTROL_QUIT)
2207       {
2208         SaveLevelSetup_LastSeries();
2209         SaveLevelSetup_SeriesInfo();
2210
2211         if (Request("Do you really want to quit?", REQ_ASK | REQ_STAY_CLOSED))
2212           SetGameStatus(GAME_MODE_QUIT);
2213       }
2214     }
2215   }
2216
2217   button_pressed_last = button_pressed;
2218 }
2219
2220
2221 // ============================================================================
2222 // info screen functions
2223 // ============================================================================
2224
2225 static struct TokenInfo *info_info;
2226 static int num_info_info;       // number of info entries shown on screen
2227 static int max_info_info;       // total number of info entries in list
2228
2229 static void execInfoTitleScreen(void)
2230 {
2231   info_mode = INFO_MODE_TITLE;
2232
2233   DrawInfoScreen();
2234 }
2235
2236 static void execInfoElements(void)
2237 {
2238   info_mode = INFO_MODE_ELEMENTS;
2239
2240   DrawInfoScreen();
2241 }
2242
2243 static void execInfoMusic(void)
2244 {
2245   info_mode = INFO_MODE_MUSIC;
2246
2247   DrawInfoScreen();
2248 }
2249
2250 static void execInfoCredits(void)
2251 {
2252   info_mode = INFO_MODE_CREDITS;
2253
2254   DrawInfoScreen();
2255 }
2256
2257 static void execInfoProgram(void)
2258 {
2259   info_mode = INFO_MODE_PROGRAM;
2260
2261   DrawInfoScreen();
2262 }
2263
2264 static void execInfoVersion(void)
2265 {
2266   info_mode = INFO_MODE_VERSION;
2267
2268   DrawInfoScreen();
2269 }
2270
2271 static void execInfoLevelSet(void)
2272 {
2273   info_mode = INFO_MODE_LEVELSET;
2274
2275   DrawInfoScreen();
2276 }
2277
2278 static void execExitInfo(void)
2279 {
2280   SetGameStatus(GAME_MODE_MAIN);
2281
2282   DrawMainMenu();
2283 }
2284
2285 static struct TokenInfo info_info_main[] =
2286 {
2287   { TYPE_ENTER_SCREEN,  execInfoTitleScreen,    "Title Screen"          },
2288   { TYPE_ENTER_SCREEN,  execInfoElements,       "Elements Info"         },
2289   { TYPE_ENTER_SCREEN,  execInfoMusic,          "Music Info"            },
2290   { TYPE_ENTER_SCREEN,  execInfoCredits,        "Credits"               },
2291   { TYPE_ENTER_SCREEN,  execInfoProgram,        "Program Info"          },
2292   { TYPE_ENTER_SCREEN,  execInfoVersion,        "Version Info"          },
2293   { TYPE_ENTER_SCREEN,  execInfoLevelSet,       "Level Set Info"        },
2294   { TYPE_EMPTY,         NULL,                   ""                      },
2295   { TYPE_LEAVE_MENU,    execExitInfo,           "Exit"                  },
2296
2297   { 0,                  NULL,                   NULL                    }
2298 };
2299
2300 static int getMenuTextFont(int type)
2301 {
2302   if (type & (TYPE_SWITCH       |
2303               TYPE_YES_NO       |
2304               TYPE_YES_NO_AUTO  |
2305               TYPE_STRING       |
2306               TYPE_PLAYER       |
2307               TYPE_ECS_AGA      |
2308               TYPE_KEYTEXT      |
2309               TYPE_ENTER_LIST   |
2310               TYPE_TEXT_INPUT))
2311     return FONT_MENU_2;
2312   else
2313     return FONT_MENU_1;
2314 }
2315
2316 static struct TokenInfo *setup_info;
2317 static struct TokenInfo setup_info_input[];
2318
2319 static struct TokenInfo *menu_info;
2320
2321 static void DrawCursorAndText_Menu_Ext(struct TokenInfo *token_info,
2322                                        int screen_pos, int menu_info_pos_raw,
2323                                        boolean active)
2324 {
2325   int pos = (menu_info_pos_raw < 0 ? screen_pos : menu_info_pos_raw);
2326   struct TokenInfo *ti = &token_info[pos];
2327   int xpos = MENU_SCREEN_START_XPOS;
2328   int ypos = MENU_SCREEN_START_YPOS + screen_pos;
2329   int font_nr = getMenuTextFont(ti->type);
2330
2331   if (setup_mode == SETUP_MODE_INPUT)
2332     font_nr = FONT_MENU_1;
2333
2334   if (active)
2335     font_nr = FONT_ACTIVE(font_nr);
2336
2337   DrawText(mSX + xpos * 32, mSY + ypos * 32, ti->text, font_nr);
2338
2339   if (ti->type & ~TYPE_SKIP_ENTRY)
2340     drawCursor(screen_pos, active);
2341 }
2342
2343 static void DrawCursorAndText_Menu(int screen_pos, int menu_info_pos_raw,
2344                                    boolean active)
2345 {
2346   DrawCursorAndText_Menu_Ext(menu_info, screen_pos, menu_info_pos_raw, active);
2347 }
2348
2349 static void DrawCursorAndText_Setup(int screen_pos, int menu_info_pos_raw,
2350                                     boolean active)
2351 {
2352   DrawCursorAndText_Menu_Ext(setup_info, screen_pos, menu_info_pos_raw, active);
2353 }
2354
2355 static char *window_size_text;
2356 static char *scaling_type_text;
2357 static char *network_server_text;
2358
2359 static void drawSetupValue(int, int);
2360
2361 static void drawMenuInfoList(int first_entry, int num_page_entries,
2362                              int max_page_entries)
2363 {
2364   int i;
2365
2366   if (first_entry + num_page_entries > max_page_entries)
2367     first_entry = 0;
2368
2369   clearMenuListArea();
2370
2371   for (i = 0; i < num_page_entries; i++)
2372   {
2373     int menu_info_pos = first_entry + i;
2374     struct TokenInfo *si = &menu_info[menu_info_pos];
2375     void *value_ptr = si->value;
2376
2377     // set some entries to "unchangeable" according to other variables
2378     if ((value_ptr == &setup.sound_simple && !audio.sound_available) ||
2379         (value_ptr == &setup.sound_loops  && !audio.loops_available) ||
2380         (value_ptr == &setup.sound_music  && !audio.music_available) ||
2381         (value_ptr == &setup.fullscreen   && !video.fullscreen_available) ||
2382         (value_ptr == &window_size_text   && !video.window_scaling_available) ||
2383         (value_ptr == &scaling_type_text  && !video.window_scaling_available))
2384       si->type |= TYPE_GHOSTED;
2385
2386     if (si->type & (TYPE_ENTER_MENU|TYPE_ENTER_LIST))
2387       initCursor(i, IMG_MENU_BUTTON_ENTER_MENU);
2388     else if (si->type & (TYPE_LEAVE_MENU|TYPE_LEAVE_LIST))
2389       initCursor(i, IMG_MENU_BUTTON_LEAVE_MENU);
2390     else if (si->type & ~TYPE_SKIP_ENTRY)
2391       initCursor(i, IMG_MENU_BUTTON);
2392
2393     DrawCursorAndText_Menu(i, menu_info_pos, FALSE);
2394
2395     if (si->type & TYPE_STRING)
2396     {
2397       int gadget_id = -1;
2398
2399       if (value_ptr == &network_server_text)
2400         gadget_id = SCREEN_CTRL_ID_NETWORK_SERVER;
2401
2402       if (gadget_id != -1)
2403       {
2404         struct GadgetInfo *gi = screen_gadget[gadget_id];
2405         int xpos = MENU_SCREEN_START_XPOS;
2406         int ypos = MENU_SCREEN_START_YPOS + i;
2407         int x = mSX + xpos * 32;
2408         int y = mSY + ypos * 32;
2409
2410         ModifyGadget(gi, GDI_X, x, GDI_Y, y, GDI_END);
2411       }
2412     }
2413
2414     if (si->type & TYPE_VALUE &&
2415         menu_info == setup_info)
2416       drawSetupValue(i, menu_info_pos);
2417   }
2418 }
2419
2420 static void DrawInfoScreen_Main(void)
2421 {
2422   int fade_mask = REDRAW_FIELD;
2423   int i;
2424
2425   if (redraw_mask & REDRAW_ALL)
2426     fade_mask = REDRAW_ALL;
2427
2428   if (CheckFadeAll())
2429     fade_mask = REDRAW_ALL;
2430
2431   UnmapAllGadgets();
2432   FadeMenuSoundsAndMusic();
2433
2434   FreeScreenGadgets();
2435   CreateScreenGadgets();
2436
2437   // (needed after displaying title screens which disable auto repeat)
2438   KeyboardAutoRepeatOn();
2439
2440   FadeSetLeaveScreen();
2441
2442   FadeOut(fade_mask);
2443
2444   // needed if different viewport properties defined for info screen
2445   ChangeViewportPropertiesIfNeeded();
2446
2447   SetMainBackgroundImage(IMG_BACKGROUND_INFO);
2448
2449   ClearField();
2450
2451   OpenDoor(GetDoorState() | DOOR_NO_DELAY | DOOR_FORCE_REDRAW);
2452
2453   DrawTextSCentered(mSY - SY + 16, FONT_TITLE_1, "Info Screen");
2454
2455   info_info = info_info_main;
2456
2457   // determine maximal number of info entries that can be displayed on screen
2458   num_info_info = 0;
2459   for (i = 0; info_info[i].type != 0 && i < NUM_MENU_ENTRIES_ON_SCREEN; i++)
2460     num_info_info++;
2461
2462   // determine maximal number of info entries available for menu of info screen
2463   max_info_info = 0;
2464   for (i = 0; info_info[i].type != 0; i++)
2465     max_info_info++;
2466
2467   HandleInfoScreen_Main(0, 0, 0, 0, MB_MENU_INITIALIZE);
2468
2469   MapScreenGadgets(max_info_info);
2470
2471   PlayMenuSoundsAndMusic();
2472
2473   DrawMaskedBorder(fade_mask);
2474
2475   FadeIn(fade_mask);
2476 }
2477
2478 static void changeSetupValue(int, int, int);
2479
2480 static void HandleMenuScreen(int mx, int my, int dx, int dy, int button,
2481                              int mode, int num_page_entries,
2482                              int max_page_entries)
2483 {
2484   static int num_page_entries_all_last[NUM_SPECIAL_GFX_ARGS][MAX_MENU_MODES];
2485   static int choice_stores[NUM_SPECIAL_GFX_ARGS][MAX_MENU_MODES];
2486   static int first_entry_stores[NUM_SPECIAL_GFX_ARGS][MAX_MENU_MODES];
2487   boolean has_scrollbar = screen_gadget[SCREEN_CTRL_ID_SCROLL_VERTICAL]->mapped;
2488   int mx_scrollbar = screen_gadget[SCREEN_CTRL_ID_SCROLL_VERTICAL]->x;
2489   int mx_right_border = (has_scrollbar ? mx_scrollbar : SX + SXSIZE);
2490   int *num_page_entries_last = num_page_entries_all_last[game_status];
2491   int *choice_store = choice_stores[game_status];
2492   int *first_entry_store = first_entry_stores[game_status];
2493   int choice = choice_store[mode];              // starts with 0
2494   int first_entry = first_entry_store[mode];    // starts with 0
2495   int x = 0;
2496   int y = choice - first_entry;
2497   int y_old = y;
2498   boolean position_set_by_scrollbar = (dx == 999);
2499   int step = (button == 1 ? 1 : button == 2 ? 5 : 10);
2500   int i;
2501
2502   if (button == MB_MENU_INITIALIZE)
2503   {
2504     // check if number of menu page entries has changed (may happen by change
2505     // of custom artwork definition value for 'list_size' for this menu screen)
2506     // (in this case, the last menu position most probably has to be corrected)
2507     if (num_page_entries != num_page_entries_last[mode])
2508     {
2509       choice_store[mode] = first_entry_store[mode] = 0;
2510
2511       choice = first_entry = 0;
2512       y = y_old = 0;
2513
2514       num_page_entries_last[mode] = num_page_entries;
2515     }
2516
2517     // advance to first valid menu entry
2518     while (choice < num_page_entries &&
2519            menu_info[choice].type & TYPE_SKIP_ENTRY)
2520       choice++;
2521
2522     if (position_set_by_scrollbar)
2523       first_entry = first_entry_store[mode] = dy;
2524     else
2525       AdjustScrollbar(SCREEN_CTRL_ID_SCROLL_VERTICAL, max_page_entries,
2526                       NUM_MENU_ENTRIES_ON_SCREEN, first_entry);
2527
2528     drawMenuInfoList(first_entry, num_page_entries, max_page_entries);
2529
2530     if (choice < first_entry)
2531     {
2532       choice = first_entry;
2533
2534       if (menu_info[choice].type & TYPE_SKIP_ENTRY)
2535         choice++;
2536     }
2537     else if (choice > first_entry + num_page_entries - 1)
2538     {
2539       choice = first_entry + num_page_entries - 1;
2540
2541       if (menu_info[choice].type & TYPE_SKIP_ENTRY)
2542         choice--;
2543     }
2544
2545     choice_store[mode] = choice;
2546
2547     DrawCursorAndText_Menu(choice - first_entry, choice, TRUE);
2548
2549     return;
2550   }
2551   else if (button == MB_MENU_LEAVE)
2552   {
2553     PlaySound(SND_MENU_ITEM_SELECTING);
2554
2555     for (i = 0; i < max_page_entries; i++)
2556     {
2557       if (menu_info[i].type & TYPE_LEAVE_MENU)
2558       {
2559         void (*menu_callback_function)(void) = menu_info[i].value;
2560
2561         FadeSetLeaveMenu();
2562
2563         menu_callback_function();
2564
2565         break;  // absolutely needed because function changes 'menu_info'!
2566       }
2567     }
2568
2569     return;
2570   }
2571
2572   if (mx || my)         // mouse input
2573   {
2574     x = (mx - mSX) / 32;
2575     y = (my - mSY) / 32 - MENU_SCREEN_START_YPOS;
2576   }
2577   else if (dx || dy)    // keyboard or scrollbar/scrollbutton input
2578   {
2579     // move cursor instead of scrolling when already at start/end of list
2580     if (dy == -1 * SCROLL_LINE && first_entry == 0)
2581       dy = -1;
2582     else if (dy == +1 * SCROLL_LINE &&
2583              first_entry + num_page_entries == max_page_entries)
2584       dy = 1;
2585
2586     // handle scrolling screen one line or page
2587     if (y + dy < 0 ||
2588         y + dy > num_page_entries - 1)
2589     {
2590       boolean redraw = FALSE;
2591
2592       if (ABS(dy) == SCROLL_PAGE)
2593         step = num_page_entries - 1;
2594
2595       if (dy < 0 && first_entry > 0)
2596       {
2597         // scroll page/line up
2598
2599         first_entry -= step;
2600         if (first_entry < 0)
2601           first_entry = 0;
2602
2603         redraw = TRUE;
2604       }
2605       else if (dy > 0 && first_entry + num_page_entries < max_page_entries)
2606       {
2607         // scroll page/line down
2608
2609         first_entry += step;
2610         if (first_entry + num_page_entries > max_page_entries)
2611           first_entry = MAX(0, max_page_entries - num_page_entries);
2612
2613         redraw = TRUE;
2614       }
2615
2616       if (redraw)
2617       {
2618         choice += first_entry - first_entry_store[mode];
2619
2620         if (choice < first_entry)
2621         {
2622           choice = first_entry;
2623
2624           if (menu_info[choice].type & TYPE_SKIP_ENTRY)
2625             choice++;
2626         }
2627         else if (choice > first_entry + num_page_entries - 1)
2628         {
2629           choice = first_entry + num_page_entries - 1;
2630
2631           if (menu_info[choice].type & TYPE_SKIP_ENTRY)
2632             choice--;
2633         }
2634         else if (menu_info[choice].type & TYPE_SKIP_ENTRY)
2635         {
2636           choice += SIGN(dy);
2637
2638           if (choice < first_entry ||
2639               choice > first_entry + num_page_entries - 1)
2640           first_entry += SIGN(dy);
2641         }
2642
2643         first_entry_store[mode] = first_entry;
2644         choice_store[mode] = choice;
2645
2646         drawMenuInfoList(first_entry, num_page_entries, max_page_entries);
2647
2648         DrawCursorAndText_Menu(choice - first_entry, choice, TRUE);
2649
2650         AdjustScrollbar(SCREEN_CTRL_ID_SCROLL_VERTICAL, max_page_entries,
2651                         NUM_MENU_ENTRIES_ON_SCREEN, first_entry);
2652       }
2653
2654       return;
2655     }
2656
2657     if (dx)
2658     {
2659       int menu_navigation_type = (dx < 0 ? TYPE_LEAVE : TYPE_ENTER);
2660
2661       if (menu_info[choice].type & menu_navigation_type ||
2662           menu_info[choice].type & TYPE_BOOLEAN_STYLE ||
2663           menu_info[choice].type & TYPE_YES_NO_AUTO ||
2664           menu_info[choice].type & TYPE_PLAYER)
2665         button = MB_MENU_CHOICE;
2666     }
2667     else if (dy)
2668       y += dy;
2669
2670     // jump to next non-empty menu entry (up or down)
2671     while (first_entry + y > 0 &&
2672            first_entry + y < max_page_entries - 1 &&
2673            menu_info[first_entry + y].type & TYPE_SKIP_ENTRY)
2674       y += dy;
2675
2676     if (!IN_VIS_MENU(x, y))
2677     {
2678       choice += y - y_old;
2679
2680       if (choice < first_entry)
2681         first_entry = choice;
2682       else if (choice > first_entry + num_page_entries - 1)
2683         first_entry = choice - num_page_entries + 1;
2684
2685       if (first_entry >= 0 &&
2686           first_entry + num_page_entries <= max_page_entries)
2687       {
2688         first_entry_store[mode] = first_entry;
2689
2690         if (choice < first_entry)
2691           choice = first_entry;
2692         else if (choice > first_entry + num_page_entries - 1)
2693           choice = first_entry + num_page_entries - 1;
2694
2695         choice_store[mode] = choice;
2696
2697         drawMenuInfoList(first_entry, num_page_entries, max_page_entries);
2698
2699         DrawCursorAndText_Menu(choice - first_entry, choice, TRUE);
2700
2701         AdjustScrollbar(SCREEN_CTRL_ID_SCROLL_VERTICAL, max_page_entries,
2702                         NUM_MENU_ENTRIES_ON_SCREEN, first_entry);
2703       }
2704
2705       return;
2706     }
2707   }
2708
2709   if (!anyScrollbarGadgetActive() &&
2710       IN_VIS_MENU(x, y) &&
2711       mx < mx_right_border &&
2712       y >= 0 && y < num_page_entries)
2713   {
2714     if (button)
2715     {
2716       if (first_entry + y != choice &&
2717           menu_info[first_entry + y].type & ~TYPE_SKIP_ENTRY)
2718       {
2719         PlaySound(SND_MENU_ITEM_ACTIVATING);
2720
2721         DrawCursorAndText_Menu(choice - first_entry, choice, FALSE);
2722         DrawCursorAndText_Menu(y, first_entry + y, TRUE);
2723
2724         choice = choice_store[mode] = first_entry + y;
2725       }
2726       else if (dx < 0)
2727       {
2728         PlaySound(SND_MENU_ITEM_SELECTING);
2729
2730         for (i = 0; menu_info[i].type != 0; i++)
2731         {
2732           if (menu_info[i].type & TYPE_LEAVE_MENU)
2733           {
2734             void (*menu_callback_function)(void) = menu_info[i].value;
2735
2736             FadeSetLeaveMenu();
2737
2738             menu_callback_function();
2739
2740             // absolutely needed because function changes 'menu_info'!
2741             break;
2742           }
2743         }
2744
2745         return;
2746       }
2747     }
2748     else if (!(menu_info[first_entry + y].type & TYPE_GHOSTED))
2749     {
2750       PlaySound(SND_MENU_ITEM_SELECTING);
2751
2752       // when selecting key headline, execute function for key value change
2753       if (menu_info[first_entry + y].type & TYPE_KEYTEXT &&
2754           menu_info[first_entry + y + 1].type & TYPE_KEY)
2755         y++;
2756
2757       // when selecting string value, execute function for list selection
2758       if (menu_info[first_entry + y].type & TYPE_STRING && y > 0 &&
2759           menu_info[first_entry + y - 1].type & TYPE_ENTER_LIST)
2760         y--;
2761
2762       // when selecting string value, execute function for text input gadget
2763       if (menu_info[first_entry + y].type & TYPE_STRING && y > 0 &&
2764           menu_info[first_entry + y - 1].type & TYPE_TEXT_INPUT)
2765         y--;
2766
2767       if (menu_info[first_entry + y].type & TYPE_ENTER_OR_LEAVE)
2768       {
2769         void (*menu_callback_function)(void) =
2770           menu_info[first_entry + y].value;
2771
2772         FadeSetFromType(menu_info[first_entry + y].type);
2773
2774         menu_callback_function();
2775       }
2776       else if (menu_info[first_entry + y].type & TYPE_TEXT_INPUT)
2777       {
2778         void (*gadget_callback_function)(void) =
2779           menu_info[first_entry + y].value;
2780
2781         gadget_callback_function();
2782       }
2783       else if (menu_info[first_entry + y].type & TYPE_VALUE &&
2784                menu_info == setup_info)
2785       {
2786         changeSetupValue(y, first_entry + y, dx);
2787       }
2788     }
2789   }
2790 }
2791
2792 void HandleInfoScreen_Main(int mx, int my, int dx, int dy, int button)
2793 {
2794   menu_info = info_info;
2795
2796   HandleMenuScreen(mx, my, dx, dy, button,
2797                    info_mode, num_info_info, max_info_info);
2798 }
2799
2800 static int getMenuFontSpacing(int spacing_height, int font_nr)
2801 {
2802   int font_spacing = getFontHeight(font_nr) + EXTRA_SPACING(game_status);
2803
2804   return (spacing_height < 0 ? ABS(spacing_height) * font_spacing :
2805           spacing_height);
2806 }
2807
2808 static int getMenuTextSpacing(int spacing_height, int font_nr)
2809 {
2810   return (getMenuFontSpacing(spacing_height, font_nr) +
2811           EXTRA_SPACING(game_status));
2812 }
2813
2814 static int getMenuTextStep(int spacing_height, int font_nr)
2815 {
2816   return getFontHeight(font_nr) + getMenuTextSpacing(spacing_height, font_nr);
2817 }
2818
2819 void DrawInfoScreen_NotAvailable(char *text_title, char *text_error)
2820 {
2821   int font_title = MENU_INFO_FONT_TITLE;
2822   int font_error = FONT_TEXT_2;
2823   int font_foot  = MENU_INFO_FONT_FOOT;
2824   int spacing_title = menu.headline1_spacing_info[info_mode];
2825   int ystep_title = getMenuTextStep(spacing_title, font_title);
2826   int ystart1 = mSY - SY + MENU_SCREEN_INFO_YSTART1;
2827   int ystart2 = ystart1 + ystep_title;
2828   int ybottom = mSY - SY + MENU_SCREEN_INFO_YBOTTOM;
2829
2830   SetMainBackgroundImageIfDefined(IMG_BACKGROUND_INFO);
2831
2832   FadeOut(REDRAW_FIELD);
2833
2834   ClearField();
2835   DrawHeadline();
2836
2837   DrawTextSCentered(ystart1, font_title, text_title);
2838   DrawTextSCentered(ystart2, font_error, text_error);
2839
2840   DrawTextSCentered(ybottom, font_foot,
2841                     "Press any key or button for info menu");
2842
2843   FadeIn(REDRAW_FIELD);
2844 }
2845
2846 void DrawInfoScreen_HelpAnim(int start, int max_anims, boolean init)
2847 {
2848   static int infoscreen_step[MAX_INFO_ELEMENTS_ON_SCREEN];
2849   static int infoscreen_frame[MAX_INFO_ELEMENTS_ON_SCREEN];
2850   int font_title = MENU_INFO_FONT_TITLE;
2851   int font_foot  = MENU_INFO_FONT_FOOT;
2852   int xstart  = mSX + MENU_SCREEN_INFO_SPACE_LEFT;
2853   int ystart1 = mSY - SY + MENU_SCREEN_INFO_YSTART1;
2854   int ystart2 = mSY + MENU_SCREEN_INFO_YSTART2;
2855   int ybottom = mSY - SY + MENU_SCREEN_INFO_YBOTTOM;
2856   int ystep = MENU_SCREEN_INFO_YSTEP;
2857   int element, action, direction;
2858   int graphic;
2859   int delay;
2860   int sync_frame;
2861   int i, j;
2862
2863   if (init)
2864   {
2865     for (i = 0; i < NUM_INFO_ELEMENTS_ON_SCREEN; i++)
2866       infoscreen_step[i] = infoscreen_frame[i] = 0;
2867
2868     ClearField();
2869     DrawHeadline();
2870
2871     DrawTextSCentered(ystart1, font_title, "The Game Elements:");
2872
2873     DrawTextSCentered(ybottom, font_foot,
2874                       "Press any key or button for next page");
2875
2876     FrameCounter = 0;
2877   }
2878
2879   i = j = 0;
2880   while (helpanim_info[j].element != HELPANIM_LIST_END)
2881   {
2882     if (i >= start + NUM_INFO_ELEMENTS_ON_SCREEN ||
2883         i >= max_anims)
2884       break;
2885     else if (i < start)
2886     {
2887       while (helpanim_info[j].element != HELPANIM_LIST_NEXT)
2888         j++;
2889
2890       j++;
2891       i++;
2892
2893       continue;
2894     }
2895
2896     j += infoscreen_step[i - start];
2897
2898     element = helpanim_info[j].element;
2899     action = helpanim_info[j].action;
2900     direction = helpanim_info[j].direction;
2901
2902     if (element < 0)
2903       element = EL_UNKNOWN;
2904
2905     if (action != -1 && direction != -1)
2906       graphic = el_act_dir2img(element, action, direction);
2907     else if (action != -1)
2908       graphic = el_act2img(element, action);
2909     else if (direction != -1)
2910       graphic = el_dir2img(element, direction);
2911     else
2912       graphic = el2img(element);
2913
2914     delay = helpanim_info[j++].delay;
2915
2916     if (delay == -1)
2917       delay = 1000000;
2918
2919     if (infoscreen_frame[i - start] == 0)
2920     {
2921       sync_frame = 0;
2922       infoscreen_frame[i - start] = delay - 1;
2923     }
2924     else
2925     {
2926       sync_frame = delay - infoscreen_frame[i - start];
2927       infoscreen_frame[i - start]--;
2928     }
2929
2930     if (helpanim_info[j].element == HELPANIM_LIST_NEXT)
2931     {
2932       if (!infoscreen_frame[i - start])
2933         infoscreen_step[i - start] = 0;
2934     }
2935     else
2936     {
2937       if (!infoscreen_frame[i - start])
2938         infoscreen_step[i - start]++;
2939       while (helpanim_info[j].element != HELPANIM_LIST_NEXT)
2940         j++;
2941     }
2942
2943     j++;
2944
2945     ClearRectangleOnBackground(drawto, xstart, ystart2 + (i - start) * ystep,
2946                                TILEX, TILEY);
2947     DrawFixedGraphicAnimationExt(drawto, xstart, ystart2 + (i - start) * ystep,
2948                                  graphic, sync_frame, USE_MASKING);
2949
2950     if (init)
2951       DrawInfoScreen_HelpText(element, action, direction, i - start);
2952
2953     i++;
2954   }
2955
2956   redraw_mask |= REDRAW_FIELD;
2957
2958   FrameCounter++;
2959 }
2960
2961 static char *getHelpText(int element, int action, int direction)
2962 {
2963   char token[MAX_LINE_LEN];
2964
2965   strcpy(token, element_info[element].token_name);
2966
2967   if (action != -1)
2968     strcat(token, element_action_info[action].suffix);
2969
2970   if (direction != -1)
2971     strcat(token, element_direction_info[MV_DIR_TO_BIT(direction)].suffix);
2972
2973   return getHashEntry(helptext_info, token);
2974 }
2975
2976 void DrawInfoScreen_HelpText(int element, int action, int direction, int ypos)
2977 {
2978   int font_nr = FONT_INFO_ELEMENTS;
2979   int font_width = getFontWidth(font_nr);
2980   int font_height = getFontHeight(font_nr);
2981   int yoffset = (TILEX - 2 * font_height) / 2;
2982   int xstart = mSX + MENU_SCREEN_INFO_SPACE_LEFT + TILEX + MINI_TILEX;
2983   int ystart = mSY + MENU_SCREEN_INFO_YSTART2 + yoffset;
2984   int ystep = TILEY + 4;
2985   int pad_left = xstart - SX;
2986   int pad_right = MENU_SCREEN_INFO_SPACE_RIGHT;
2987   int max_chars_per_line = (SXSIZE - pad_left - pad_right) / font_width;
2988   int max_lines_per_text = 2;    
2989   char *text = NULL;
2990
2991   if (action != -1 && direction != -1)          // element.action.direction
2992     text = getHelpText(element, action, direction);
2993
2994   if (text == NULL && action != -1)             // element.action
2995     text = getHelpText(element, action, -1);
2996
2997   if (text == NULL && direction != -1)          // element.direction
2998     text = getHelpText(element, -1, direction);
2999
3000   if (text == NULL)                             // base element
3001     text = getHelpText(element, -1, -1);
3002
3003   if (text == NULL)                             // not found
3004     text = "No description available";
3005
3006   if (strlen(text) <= max_chars_per_line)       // only one line of text
3007     ystart += getFontHeight(font_nr) / 2;
3008
3009   DrawTextBuffer(xstart, ystart + ypos * ystep, text, font_nr,
3010                  max_chars_per_line, -1, max_lines_per_text, 0, -1,
3011                  TRUE, FALSE, FALSE);
3012 }
3013
3014 static void DrawInfoScreen_TitleScreen(void)
3015 {
3016   SetGameStatus(GAME_MODE_TITLE);
3017
3018   DrawTitleScreen();
3019 }
3020
3021 void HandleInfoScreen_TitleScreen(int button)
3022 {
3023   HandleTitleScreen(0, 0, 0, 0, button);
3024 }
3025
3026 static void DrawInfoScreen_Elements(void)
3027 {
3028   SetMainBackgroundImageIfDefined(IMG_BACKGROUND_INFO_ELEMENTS);
3029
3030   FadeOut(REDRAW_FIELD);
3031
3032   LoadHelpAnimInfo();
3033   LoadHelpTextInfo();
3034
3035   HandleInfoScreen_Elements(MB_MENU_INITIALIZE);
3036
3037   FadeIn(REDRAW_FIELD);
3038 }
3039
3040 void HandleInfoScreen_Elements(int button)
3041 {
3042   static unsigned int info_delay = 0;
3043   static int num_anims;
3044   static int num_pages;
3045   static int page;
3046   int anims_per_page = NUM_INFO_ELEMENTS_ON_SCREEN;
3047   int i;
3048
3049   if (button == MB_MENU_INITIALIZE)
3050   {
3051     boolean new_element = TRUE;
3052
3053     num_anims = 0;
3054
3055     for (i = 0; helpanim_info[i].element != HELPANIM_LIST_END; i++)
3056     {
3057       if (helpanim_info[i].element == HELPANIM_LIST_NEXT)
3058         new_element = TRUE;
3059       else if (new_element)
3060       {
3061         num_anims++;
3062         new_element = FALSE;
3063       }
3064     }
3065
3066     num_pages = (num_anims + anims_per_page - 1) / anims_per_page;
3067     page = 0;
3068   }
3069
3070   if (button == MB_MENU_LEAVE)
3071   {
3072     PlaySound(SND_MENU_ITEM_SELECTING);
3073
3074     info_mode = INFO_MODE_MAIN;
3075     DrawInfoScreen();
3076
3077     return;
3078   }
3079   else if (button == MB_MENU_CHOICE || button == MB_MENU_INITIALIZE)
3080   {
3081     if (button != MB_MENU_INITIALIZE)
3082     {
3083       PlaySound(SND_MENU_ITEM_SELECTING);
3084
3085       page++;
3086     }
3087
3088     if (page >= num_pages)
3089     {
3090       FadeMenuSoundsAndMusic();
3091
3092       info_mode = INFO_MODE_MAIN;
3093       DrawInfoScreen();
3094
3095       return;
3096     }
3097
3098     if (page > 0)
3099       FadeSetNextScreen();
3100
3101     if (button != MB_MENU_INITIALIZE)
3102       FadeOut(REDRAW_FIELD);
3103
3104     DrawInfoScreen_HelpAnim(page * anims_per_page, num_anims, TRUE);
3105
3106     if (button != MB_MENU_INITIALIZE)
3107       FadeIn(REDRAW_FIELD);
3108   }
3109   else
3110   {
3111     if (DelayReached(&info_delay, GameFrameDelay))
3112       if (page < num_pages)
3113         DrawInfoScreen_HelpAnim(page * anims_per_page, num_anims, FALSE);
3114
3115     PlayMenuSoundIfLoop();
3116   }
3117 }
3118
3119 static void DrawInfoScreen_Music(void)
3120 {
3121   SetMainBackgroundImageIfDefined(IMG_BACKGROUND_INFO_MUSIC);
3122
3123   FadeOut(REDRAW_FIELD);
3124
3125   ClearField();
3126   DrawHeadline();
3127
3128   LoadMusicInfo();
3129
3130   HandleInfoScreen_Music(MB_MENU_INITIALIZE);
3131
3132   FadeIn(REDRAW_FIELD);
3133 }
3134
3135 void HandleInfoScreen_Music(int button)
3136 {
3137   static struct MusicFileInfo *list = NULL;
3138   int font_title = MENU_INFO_FONT_TITLE;
3139   int font_head  = MENU_INFO_FONT_HEAD;
3140   int font_text  = MENU_INFO_FONT_TEXT;
3141   int font_foot  = MENU_INFO_FONT_FOOT;
3142   int spacing_title = menu.headline1_spacing_info[info_mode];
3143   int spacing_head  = menu.headline2_spacing_info[info_mode];
3144   int ystep_title = getMenuTextStep(spacing_title, font_title);
3145   int ystep_head  = getMenuTextStep(spacing_head,  font_head);
3146   int ystart  = mSY - SY + MENU_SCREEN_INFO_YSTART1;
3147   int ybottom = mSY - SY + MENU_SCREEN_INFO_YBOTTOM;
3148
3149   if (button == MB_MENU_INITIALIZE)
3150   {
3151     list = music_file_info;
3152
3153     if (list == NULL)
3154     {
3155       FadeMenuSoundsAndMusic();
3156
3157       ClearField();
3158       DrawHeadline();
3159
3160       DrawTextSCentered(ystart, font_title,
3161                         "No music info for this level set.");
3162
3163       DrawTextSCentered(ybottom, font_foot,
3164                         "Press any key or button for info menu");
3165
3166       return;
3167     }
3168   }
3169
3170   if (button == MB_MENU_LEAVE)
3171   {
3172     PlaySound(SND_MENU_ITEM_SELECTING);
3173
3174     FadeMenuSoundsAndMusic();
3175
3176     info_mode = INFO_MODE_MAIN;
3177     DrawInfoScreen();
3178
3179     return;
3180   }
3181   else if (button == MB_MENU_CHOICE || button == MB_MENU_INITIALIZE)
3182   {
3183     if (button != MB_MENU_INITIALIZE)
3184     {
3185       PlaySound(SND_MENU_ITEM_SELECTING);
3186
3187       if (list != NULL)
3188         list = list->next;
3189     }
3190
3191     if (list == NULL)
3192     {
3193       FadeMenuSoundsAndMusic();
3194
3195       info_mode = INFO_MODE_MAIN;
3196       DrawInfoScreen();
3197
3198       return;
3199     }
3200
3201     FadeMenuSoundsAndMusic();
3202
3203     if (list != music_file_info)
3204       FadeSetNextScreen();
3205
3206     if (button != MB_MENU_INITIALIZE)
3207       FadeOut(REDRAW_FIELD);
3208
3209     ClearField();
3210     DrawHeadline();
3211
3212     if (list->is_sound)
3213     {
3214       int sound = list->music;
3215
3216       if (sound_info[sound].loop)
3217         PlaySoundLoop(sound);
3218       else
3219         PlaySound(sound);
3220
3221       DrawTextSCentered(ystart, font_title, "The Game Background Sounds:");
3222     }
3223     else
3224     {
3225       int music = list->music;
3226
3227       if (music_info[music].loop)
3228         PlayMusicLoop(music);
3229       else
3230         PlayMusic(music);
3231
3232       DrawTextSCentered(ystart, font_title, "The Game Background Music:");
3233     }
3234
3235     ystart += ystep_title;
3236
3237     if (!strEqual(list->title, UNKNOWN_NAME))
3238     {
3239       if (!strEqual(list->title_header, UNKNOWN_NAME))
3240       {
3241         DrawTextSCentered(ystart, font_head, list->title_header);
3242         ystart += ystep_head;
3243       }
3244
3245       DrawTextFCentered(ystart, font_text, "\"%s\"", list->title);
3246       ystart += ystep_head;
3247     }
3248
3249     if (!strEqual(list->artist, UNKNOWN_NAME))
3250     {
3251       if (!strEqual(list->artist_header, UNKNOWN_NAME))
3252         DrawTextSCentered(ystart, font_head, list->artist_header);
3253       else
3254         DrawTextSCentered(ystart, font_head, "by");
3255
3256       ystart += ystep_head;
3257
3258       DrawTextFCentered(ystart, font_text, "%s", list->artist);
3259       ystart += ystep_head;
3260     }
3261
3262     if (!strEqual(list->album, UNKNOWN_NAME))
3263     {
3264       if (!strEqual(list->album_header, UNKNOWN_NAME))
3265         DrawTextSCentered(ystart, font_head, list->album_header);
3266       else
3267         DrawTextSCentered(ystart, font_head, "from the album");
3268
3269       ystart += ystep_head;
3270
3271       DrawTextFCentered(ystart, font_text, "\"%s\"", list->album);
3272       ystart += ystep_head;
3273     }
3274
3275     if (!strEqual(list->year, UNKNOWN_NAME))
3276     {
3277       if (!strEqual(list->year_header, UNKNOWN_NAME))
3278         DrawTextSCentered(ystart, font_head, list->year_header);
3279       else
3280         DrawTextSCentered(ystart, font_head, "from the year");
3281
3282       ystart += ystep_head;
3283
3284       DrawTextFCentered(ystart, font_text, "%s", list->year);
3285       ystart += ystep_head;
3286     }
3287
3288     DrawTextSCentered(ybottom, FONT_TEXT_4,
3289                       "Press any key or button for next page");
3290
3291     if (button != MB_MENU_INITIALIZE)
3292       FadeIn(REDRAW_FIELD);
3293   }
3294
3295   if (list != NULL && list->is_sound && sound_info[list->music].loop)
3296     PlaySoundLoop(list->music);
3297 }
3298
3299 static void DrawInfoScreen_CreditsScreen(int screen_nr)
3300 {
3301   int font_title = MENU_INFO_FONT_TITLE;
3302   int font_head  = MENU_INFO_FONT_HEAD;
3303   int font_text  = MENU_INFO_FONT_TEXT;
3304   int font_foot  = MENU_INFO_FONT_FOOT;
3305   int spacing_title = menu.headline1_spacing_info[info_mode];
3306   int spacing_head  = menu.headline2_spacing_info[info_mode];
3307   int spacing_para  = menu.paragraph_spacing_info[info_mode];
3308   int spacing_line  = menu.line_spacing_info[info_mode];
3309   int ystep_title = getMenuTextStep(spacing_title, font_title);
3310   int ystep_head  = getMenuTextStep(spacing_head,  font_head);
3311   int ystep_para  = getMenuTextStep(spacing_para,  font_text);
3312   int ystep_line  = getMenuTextStep(spacing_line,  font_text);
3313   int ystart  = mSY - SY + MENU_SCREEN_INFO_YSTART1;
3314   int ybottom = mSY - SY + MENU_SCREEN_INFO_YBOTTOM;
3315
3316   ClearField();
3317   DrawHeadline();
3318
3319   DrawTextSCentered(ystart, font_title, "Credits:");
3320   ystart += ystep_title;
3321
3322   if (screen_nr == 0)
3323   {
3324     DrawTextSCentered(ystart, font_head,
3325                       "Special thanks to");
3326     ystart += ystep_head;
3327     DrawTextSCentered(ystart, font_text,
3328                       "Peter Liepa");
3329     ystart += ystep_head;
3330     DrawTextSCentered(ystart, font_head,
3331                       "for creating");
3332     ystart += ystep_head;
3333     DrawTextSCentered(ystart, font_text,
3334                       "\"Boulder Dash\"");
3335     ystart += ystep_head;
3336     DrawTextSCentered(ystart, font_head,
3337                       "in the year");
3338     ystart += ystep_head;
3339     DrawTextSCentered(ystart, font_text,
3340                       "1984");
3341     ystart += ystep_head;
3342     DrawTextSCentered(ystart, font_head,
3343                       "published by");
3344     ystart += ystep_head;
3345     DrawTextSCentered(ystart, font_text,
3346                       "First Star Software");
3347   }
3348   else if (screen_nr == 1)
3349   {
3350     DrawTextSCentered(ystart, font_head,
3351                       "Special thanks to");
3352     ystart += ystep_head;
3353     DrawTextSCentered(ystart, font_text,
3354                       "Klaus Heinz & Volker Wertich");
3355     ystart += ystep_head;
3356     DrawTextSCentered(ystart, font_head,
3357                       "for creating");
3358     ystart += ystep_head;
3359     DrawTextSCentered(ystart, font_text,
3360                       "\"Emerald Mine\"");
3361     ystart += ystep_head;
3362     DrawTextSCentered(ystart, font_head,
3363                       "in the year");
3364     ystart += ystep_head;
3365     DrawTextSCentered(ystart, font_text,
3366                       "1987");
3367     ystart += ystep_head;
3368     DrawTextSCentered(ystart, font_head,
3369                       "published by");
3370     ystart += ystep_head;
3371     DrawTextSCentered(ystart, font_text,
3372                       "Kingsoft");
3373   }
3374   else if (screen_nr == 2)
3375   {
3376     DrawTextSCentered(ystart, font_head,
3377                       "Special thanks to");
3378     ystart += ystep_head;
3379     DrawTextSCentered(ystart, font_text,
3380                       "Michael Stopp & Philip Jespersen");
3381     ystart += ystep_head;
3382     DrawTextSCentered(ystart, font_head,
3383                       "for creating");
3384     ystart += ystep_head;
3385     DrawTextSCentered(ystart, font_text,
3386                       "\"Supaplex\"");
3387     ystart += ystep_head;
3388     DrawTextSCentered(ystart, font_head,
3389                       "in the year");
3390     ystart += ystep_head;
3391     DrawTextSCentered(ystart, font_text,
3392                       "1991");
3393     ystart += ystep_head;
3394     DrawTextSCentered(ystart, font_head,
3395                       "published by");
3396     ystart += ystep_head;
3397     DrawTextSCentered(ystart, font_text,
3398                       "Digital Integration");
3399   }
3400   else if (screen_nr == 3)
3401   {
3402     DrawTextSCentered(ystart, font_head,
3403                       "Special thanks to");
3404     ystart += ystep_head;
3405     DrawTextSCentered(ystart, font_text,
3406                       "Hiroyuki Imabayashi");
3407     ystart += ystep_head;
3408     DrawTextSCentered(ystart, font_head,
3409                       "for creating");
3410     ystart += ystep_head;
3411     DrawTextSCentered(ystart, font_text,
3412                       "\"Sokoban\"");
3413     ystart += ystep_head;
3414     DrawTextSCentered(ystart, font_head,
3415                       "in the year");
3416     ystart += ystep_head;
3417     DrawTextSCentered(ystart, font_text,
3418                       "1982");
3419     ystart += ystep_head;
3420     DrawTextSCentered(ystart, font_head,
3421                       "published by");
3422     ystart += ystep_head;
3423     DrawTextSCentered(ystart, font_text,
3424                       "Thinking Rabbit");
3425   }
3426   else if (screen_nr == 4)
3427   {
3428     DrawTextSCentered(ystart, font_head,
3429                       "Special thanks to");
3430     ystart += ystep_head;
3431     DrawTextSCentered(ystart, font_text,
3432                       "Alan Bond");
3433     ystart += ystep_head;
3434     DrawTextSCentered(ystart, font_head,
3435                       "and");
3436     ystart += ystep_head;
3437     DrawTextSCentered(ystart, font_text,
3438                       "J\xfcrgen Bonhagen");
3439     ystart += ystep_head;
3440     DrawTextSCentered(ystart, font_head,
3441                       "for the continuous creation");
3442     ystart += ystep_line;
3443     DrawTextSCentered(ystart, font_head,
3444                       "of outstanding level sets");
3445   }
3446   else if (screen_nr == 5)
3447   {
3448     DrawTextSCentered(ystart, font_head,
3449                       "Thanks to");
3450     ystart += ystep_head;
3451     DrawTextSCentered(ystart, font_text,
3452                       "Peter Elzner");
3453     ystart += ystep_head;
3454     DrawTextSCentered(ystart, font_head,
3455                       "for ideas and inspiration by");
3456     ystart += ystep_head;
3457     DrawTextSCentered(ystart, font_text,
3458                       "Diamond Caves");
3459     ystart += ystep_para;
3460
3461     DrawTextSCentered(ystart, font_head,
3462                       "Thanks to");
3463     ystart += ystep_head;
3464     DrawTextSCentered(ystart, font_text,
3465                       "Steffest");
3466     ystart += ystep_head;
3467     DrawTextSCentered(ystart, font_head,
3468                       "for ideas and inspiration by");
3469     ystart += ystep_head;
3470     DrawTextSCentered(ystart, font_text,
3471                       "DX-Boulderdash");
3472   }
3473   else if (screen_nr == 6)
3474   {
3475     DrawTextSCentered(ystart, font_head,
3476                       "Thanks to");
3477     ystart += ystep_head;
3478     DrawTextSCentered(ystart, font_text,
3479                       "David Tritscher");
3480     ystart += ystep_head;
3481     DrawTextSCentered(ystart, font_head,
3482                       "for the code base used for the");
3483     ystart += ystep_line;
3484     DrawTextSCentered(ystart, font_head,
3485                       "native Emerald Mine engine");
3486   }
3487   else if (screen_nr == 7)
3488   {
3489     DrawTextSCentered(ystart, font_head,
3490                       "Thanks to");
3491     ystart += ystep_head;
3492     DrawTextSCentered(ystart, font_text,
3493                       "Guido Schulz");
3494     ystart += ystep_head;
3495     DrawTextSCentered(ystart, font_head,
3496                       "for the initial DOS port");
3497     ystart += ystep_para;
3498
3499     DrawTextSCentered(ystart, font_head,
3500                       "Thanks to");
3501     ystart += ystep_head;
3502     DrawTextSCentered(ystart, font_text,
3503                       "Karl H\xf6rnell");
3504     ystart += ystep_head;
3505     DrawTextSCentered(ystart, font_head,
3506                       "for some additional toons");
3507   }
3508   else if (screen_nr == 8)
3509   {
3510     DrawTextSCentered(ystart, font_head,
3511                       "And not to forget:");
3512     ystart += ystep_head;
3513     DrawTextSCentered(ystart, font_head,
3514                       "Many thanks to");
3515     ystart += ystep_head;
3516     DrawTextSCentered(ystart, font_text,
3517                       "All those who contributed");
3518     ystart += ystep_line;
3519     DrawTextSCentered(ystart, font_text,
3520                       "levels to this game");
3521     ystart += ystep_line;
3522     DrawTextSCentered(ystart, font_text,
3523                       "since 1995");
3524   }
3525
3526   DrawTextSCentered(ybottom, font_foot,
3527                     "Press any key or button for next page");
3528 }
3529
3530 static void DrawInfoScreen_Credits(void)
3531 {
3532   SetMainBackgroundImageIfDefined(IMG_BACKGROUND_INFO_CREDITS);
3533
3534   FadeMenuSoundsAndMusic();
3535
3536   FadeOut(REDRAW_FIELD);
3537
3538   HandleInfoScreen_Credits(MB_MENU_INITIALIZE);
3539
3540   FadeIn(REDRAW_FIELD);
3541 }
3542
3543 void HandleInfoScreen_Credits(int button)
3544 {
3545   static int screen_nr = 0;
3546   int num_screens = 9;
3547
3548   if (button == MB_MENU_INITIALIZE)
3549   {
3550     screen_nr = 0;
3551
3552     // DrawInfoScreen_CreditsScreen(screen_nr);
3553   }
3554
3555   if (button == MB_MENU_LEAVE)
3556   {
3557     PlaySound(SND_MENU_ITEM_SELECTING);
3558
3559     info_mode = INFO_MODE_MAIN;
3560     DrawInfoScreen();
3561
3562     return;
3563   }
3564   else if (button == MB_MENU_CHOICE || button == MB_MENU_INITIALIZE)
3565   {
3566     if (button != MB_MENU_INITIALIZE)
3567     {
3568       PlaySound(SND_MENU_ITEM_SELECTING);
3569
3570       screen_nr++;
3571     }
3572
3573     if (screen_nr >= num_screens)
3574     {
3575       FadeMenuSoundsAndMusic();
3576
3577       info_mode = INFO_MODE_MAIN;
3578       DrawInfoScreen();
3579
3580       return;
3581     }
3582
3583     if (screen_nr > 0)
3584       FadeSetNextScreen();
3585
3586     if (button != MB_MENU_INITIALIZE)
3587       FadeOut(REDRAW_FIELD);
3588
3589     DrawInfoScreen_CreditsScreen(screen_nr);
3590
3591     if (button != MB_MENU_INITIALIZE)
3592       FadeIn(REDRAW_FIELD);
3593   }
3594   else
3595   {
3596     PlayMenuSoundIfLoop();
3597   }
3598 }
3599
3600 static void DrawInfoScreen_Program(void)
3601 {
3602   int font_title = MENU_INFO_FONT_TITLE;
3603   int font_head  = MENU_INFO_FONT_HEAD;
3604   int font_text  = MENU_INFO_FONT_TEXT;
3605   int font_foot  = MENU_INFO_FONT_FOOT;
3606   int spacing_title = menu.headline1_spacing_info[info_mode];
3607   int spacing_head  = menu.headline2_spacing_info[info_mode];
3608   int spacing_para  = menu.paragraph_spacing_info[info_mode];
3609   int spacing_line  = menu.line_spacing_info[info_mode];
3610   int ystep_title = getMenuTextStep(spacing_title, font_title);
3611   int ystep_head  = getMenuTextStep(spacing_head,  font_head);
3612   int ystep_para  = getMenuTextStep(spacing_para,  font_text);
3613   int ystep_line  = getMenuTextStep(spacing_line,  font_text);
3614   int ystart  = mSY - SY + MENU_SCREEN_INFO_YSTART1;
3615   int ybottom = mSY - SY + MENU_SCREEN_INFO_YBOTTOM;
3616
3617   SetMainBackgroundImageIfDefined(IMG_BACKGROUND_INFO_PROGRAM);
3618
3619   FadeOut(REDRAW_FIELD);
3620
3621   ClearField();
3622   DrawHeadline();
3623
3624   DrawTextSCentered(ystart, font_title, "Program Information:");
3625   ystart += ystep_title;
3626
3627   DrawTextSCentered(ystart, font_head,
3628                     "This game is Freeware!");
3629   ystart += ystep_head;
3630   DrawTextSCentered(ystart, font_head,
3631                     "If you like it, send e-mail to:");
3632   ystart += ystep_head;
3633   DrawTextSCentered(ystart, font_text,
3634                     setup.internal.program_email);
3635   ystart += ystep_para;
3636
3637   DrawTextSCentered(ystart, font_head,
3638                     "More information and levels:");
3639   ystart += ystep_head;
3640   DrawTextSCentered(ystart, font_text,
3641                     setup.internal.program_website);
3642   ystart += ystep_para;
3643
3644   DrawTextSCentered(ystart, font_head,
3645                     "If you have created new levels,");
3646   ystart += ystep_line;
3647   DrawTextSCentered(ystart, font_head,
3648                     "send them to me to include them!");
3649   ystart += ystep_head;
3650   DrawTextSCentered(ystart, font_head,
3651                     ":-)");
3652
3653   DrawTextSCentered(ybottom, font_foot,
3654                     "Press any key or button for info menu");
3655
3656   FadeIn(REDRAW_FIELD);
3657 }
3658
3659 void HandleInfoScreen_Program(int button)
3660 {
3661   if (button == MB_MENU_LEAVE)
3662   {
3663     PlaySound(SND_MENU_ITEM_SELECTING);
3664
3665     info_mode = INFO_MODE_MAIN;
3666     DrawInfoScreen();
3667
3668     return;
3669   }
3670   else if (button == MB_MENU_CHOICE)
3671   {
3672     PlaySound(SND_MENU_ITEM_SELECTING);
3673
3674     FadeMenuSoundsAndMusic();
3675
3676     info_mode = INFO_MODE_MAIN;
3677     DrawInfoScreen();
3678   }
3679   else
3680   {
3681     PlayMenuSoundIfLoop();
3682   }
3683 }
3684
3685 static void DrawInfoScreen_Version(void)
3686 {
3687   int font_title = MENU_INFO_FONT_TITLE;
3688   int font_head  = MENU_INFO_FONT_HEAD;
3689   int font_text  = MENU_INFO_FONT_TEXT;
3690   int font_foot  = MENU_INFO_FONT_FOOT;
3691   int spacing_title = menu.headline1_spacing_info[info_mode];
3692   int spacing_head  = menu.headline2_spacing_info[info_mode];
3693   int spacing_para  = menu.paragraph_spacing_info[info_mode];
3694   int spacing_line  = menu.line_spacing_info[info_mode];
3695   int xstep = getFontWidth(font_text);
3696   int ystep_title = getMenuTextStep(spacing_title, font_title);
3697   int ystep_head  = getMenuTextStep(spacing_head,  font_head);
3698   int ystep_para  = getMenuTextStep(spacing_para,  font_text);
3699   int ystep_line  = getMenuTextStep(spacing_line,  font_text);
3700   int ystart  = mSY - SY + MENU_SCREEN_INFO_YSTART1;
3701   int ybottom = mSY - SY + MENU_SCREEN_INFO_YBOTTOM;
3702   int xstart1 = mSX - SX + 2 * xstep;
3703   int xstart2 = mSX - SX + 18 * xstep;
3704   int xstart3 = mSX - SX + 28 * xstep;
3705   SDL_version sdl_version_compiled;
3706   const SDL_version *sdl_version_linked;
3707   int driver_name_len = 10;
3708   SDL_version sdl_version_linked_ext;
3709   const char *driver_name = NULL;
3710
3711   SetMainBackgroundImageIfDefined(IMG_BACKGROUND_INFO_VERSION);
3712
3713   FadeOut(REDRAW_FIELD);
3714
3715   ClearField();
3716   DrawHeadline();
3717
3718   DrawTextSCentered(ystart, font_title, "Version Information:");
3719   ystart += ystep_title;
3720
3721   DrawTextF(xstart1, ystart, font_head, "Name");
3722   DrawTextF(xstart2, ystart, font_text, getProgramTitleString());
3723   ystart += ystep_line;
3724
3725   if (!strEqual(getProgramVersionString(), getProgramRealVersionString()))
3726   {
3727     DrawTextF(xstart1, ystart, font_head, "Version (fake)");
3728     DrawTextF(xstart2, ystart, font_text, getProgramVersionString());
3729     ystart += ystep_line;
3730
3731     DrawTextF(xstart1, ystart, font_head, "Version (real)");
3732     DrawTextF(xstart2, ystart, font_text, getProgramRealVersionString());
3733     ystart += ystep_line;
3734   }
3735   else
3736   {
3737     DrawTextF(xstart1, ystart, font_head, "Version");
3738     DrawTextF(xstart2, ystart, font_text, getProgramVersionString());
3739     ystart += ystep_line;
3740   }
3741
3742   DrawTextF(xstart1, ystart, font_head, "Platform");
3743   DrawTextF(xstart2, ystart, font_text, "%s (%s)",
3744             PLATFORM_STRING,
3745             PLATFORM_XX_BIT_STRING);
3746   ystart += ystep_line;
3747
3748   DrawTextF(xstart1, ystart, font_head,&n