src/init.c

   1 /***********************************************************
   2 * Rocks'n'Diamonds -- McDuffin Strikes Back!               *
   3 *----------------------------------------------------------*
   4 * (c) 1995-2006 Artsoft Entertainment                      *
   5 *               Holger Schemel                             *
   6 *               Detmolder Strasse 189                      *
   7 *               33604 Bielefeld                            *
   8 *               Germany                                    *
   9 *               e-mail: info@artsoft.org                   *
  10 *----------------------------------------------------------*
  11 * init.c                                                   *
  12 ***********************************************************/
  13
  14 #include "libgame/libgame.h"
  15
  16 #include "init.h"
  17 #include "events.h"
  18 #include "screens.h"
  19 #include "editor.h"
  20 #include "game.h"
  21 #include "tape.h"
  22 #include "tools.h"
  23 #include "files.h"
  24 #include "network.h"
  25 #include "netserv.h"
  26 #include "cartoons.h"
  27 #include "config.h"
  28
  29 #include "conf_e2g.c"   /* include auto-generated data structure definitions */
  30 #include "conf_esg.c"   /* include auto-generated data structure definitions */
  31 #include "conf_e2s.c"   /* include auto-generated data structure definitions */
  32 #include "conf_fnt.c"   /* include auto-generated data structure definitions */
  33 #include "conf_g2s.c"   /* include auto-generated data structure definitions */
  34 #include "conf_g2m.c"   /* include auto-generated data structure definitions */
  35
  36
  37 #define CONFIG_TOKEN_FONT_INITIAL               "font.initial"
  38
  39
  40 static struct FontBitmapInfo font_initial[NUM_INITIAL_FONTS];
  41
  42 static int copy_properties[][5] =
  43 {
  44   {
  45     EL_BUG,
  46     EL_BUG_LEFT,                EL_BUG_RIGHT,
  47     EL_BUG_UP,                  EL_BUG_DOWN
  48   },
  49   {
  50     EL_SPACESHIP,
  51     EL_SPACESHIP_LEFT,          EL_SPACESHIP_RIGHT,
  52     EL_SPACESHIP_UP,            EL_SPACESHIP_DOWN
  53   },
  54   {
  55     EL_BD_BUTTERFLY,
  56     EL_BD_BUTTERFLY_LEFT,       EL_BD_BUTTERFLY_RIGHT,
  57     EL_BD_BUTTERFLY_UP,         EL_BD_BUTTERFLY_DOWN
  58   },
  59   {
  60     EL_BD_FIREFLY,
  61     EL_BD_FIREFLY_LEFT,         EL_BD_FIREFLY_RIGHT,
  62     EL_BD_FIREFLY_UP,           EL_BD_FIREFLY_DOWN
  63   },
  64   {
  65     EL_PACMAN,
  66     EL_PACMAN_LEFT,             EL_PACMAN_RIGHT,
  67     EL_PACMAN_UP,               EL_PACMAN_DOWN
  68   },
  69   {
  70     EL_YAMYAM,
  71     EL_YAMYAM_LEFT,             EL_YAMYAM_RIGHT,
  72     EL_YAMYAM_UP,               EL_YAMYAM_DOWN
  73   },
  74   {
  75     EL_MOLE,
  76     EL_MOLE_LEFT,               EL_MOLE_RIGHT,
  77     EL_MOLE_UP,                 EL_MOLE_DOWN
  78   },
  79   {
  80     -1,
  81     -1, -1, -1, -1
  82   }
  83 };
  84
  85 void FreeGadgets()
  86 {
  87   FreeLevelEditorGadgets();
  88   FreeGameButtons();
  89   FreeTapeButtons();
  90   FreeToolButtons();
  91   FreeScreenGadgets();
  92 }
  93
  94 void InitGadgets()
  95 {
  96   static boolean gadgets_initialized = FALSE;
  97
  98   if (gadgets_initialized)
  99     FreeGadgets();
 100
 101   CreateLevelEditorGadgets();
 102   CreateGameButtons();
 103   CreateTapeButtons();
 104   CreateToolButtons();
 105   CreateScreenGadgets();
 106
 107   InitGadgetsSoundCallback(PlaySoundActivating, PlaySoundSelecting);
 108
 109   gadgets_initialized = TRUE;
 110 }
 111
 112 inline void InitElementSmallImagesScaledUp(int graphic)
 113 {
 114   CreateImageWithSmallImages(graphic, graphic_info[graphic].scale_up_factor);
 115 }
 116
 117 void InitElementSmallImages()
 118 {
 119   static int special_graphics[] =
 120   {
 121     IMG_EDITOR_ELEMENT_BORDER,
 122     IMG_EDITOR_ELEMENT_BORDER_INPUT,
 123     IMG_EDITOR_CASCADE_LIST,
 124     IMG_EDITOR_CASCADE_LIST_ACTIVE,
 125     -1
 126   };
 127   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 128   int num_property_mappings = getImageListPropertyMappingSize();
 129   int i;
 130
 131   /* initialize normal images from static configuration */
 132   for (i = 0; element_to_graphic[i].element > -1; i++)
 133     InitElementSmallImagesScaledUp(element_to_graphic[i].graphic);
 134
 135   /* initialize special images from static configuration */
 136   for (i = 0; element_to_special_graphic[i].element > -1; i++)
 137     InitElementSmallImagesScaledUp(element_to_special_graphic[i].graphic);
 138
 139   /* initialize images from dynamic configuration (may be elements or other) */
 140   for (i = 0; i < num_property_mappings; i++)
 141     InitElementSmallImagesScaledUp(property_mapping[i].artwork_index);
 142
 143   /* initialize special images from above list (non-element images) */
 144   for (i = 0; special_graphics[i] > -1; i++)
 145     InitElementSmallImagesScaledUp(special_graphics[i]);
 146 }
 147
 148 void InitScaledImages()
 149 {
 150   int i;
 151
 152   /* scale normal images from static configuration, if not already scaled */
 153   for (i = 0; i < NUM_IMAGE_FILES; i++)
 154     ScaleImage(i, graphic_info[i].scale_up_factor);
 155 }
 156
 157 #if 1
 158 /* !!! FIX THIS (CHANGE TO USING NORMAL ELEMENT GRAPHIC DEFINITIONS) !!! */
 159 void SetBitmaps_EM(Bitmap **em_bitmap)
 160 {
 161   em_bitmap[0] = graphic_info[IMG_EMC_OBJECT].bitmap;
 162   em_bitmap[1] = graphic_info[IMG_EMC_SPRITE].bitmap;
 163 }
 164 #endif
 165
 166 static int getFontBitmapID(int font_nr)
 167 {
 168   int special = -1;
 169
 170   if (game_status >= GAME_MODE_TITLE && game_status <= GAME_MODE_PSEUDO_PREVIEW)
 171     special = game_status;
 172   else if (game_status == GAME_MODE_PSEUDO_TYPENAME)
 173     special = GFX_SPECIAL_ARG_MAIN;
 174   else if (game_status == GAME_MODE_PLAYING)
 175     special = GFX_SPECIAL_ARG_DOOR;
 176
 177   if (special != -1)
 178     return font_info[font_nr].special_bitmap_id[special];
 179   else
 180     return font_nr;
 181 }
 182
 183 void InitFontGraphicInfo()
 184 {
 185   static struct FontBitmapInfo *font_bitmap_info = NULL;
 186   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 187   int num_property_mappings = getImageListPropertyMappingSize();
 188   int num_font_bitmaps = NUM_FONTS;
 189   int i, j;
 190
 191   if (graphic_info == NULL)             /* still at startup phase */
 192   {
 193     InitFontInfo(font_initial, NUM_INITIAL_FONTS, getFontBitmapID);
 194
 195     return;
 196   }
 197
 198   /* ---------- initialize font graphic definitions ---------- */
 199
 200   /* always start with reliable default values (normal font graphics) */
 201   for (i = 0; i < NUM_FONTS; i++)
 202     font_info[i].graphic = IMG_FONT_INITIAL_1;
 203
 204   /* initialize normal font/graphic mapping from static configuration */
 205   for (i = 0; font_to_graphic[i].font_nr > -1; i++)
 206   {
 207     int font_nr = font_to_graphic[i].font_nr;
 208     int special = font_to_graphic[i].special;
 209     int graphic = font_to_graphic[i].graphic;
 210
 211     if (special != -1)
 212       continue;
 213
 214     font_info[font_nr].graphic = graphic;
 215   }
 216
 217   /* always start with reliable default values (special font graphics) */
 218   for (i = 0; i < NUM_FONTS; i++)
 219   {
 220     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 221     {
 222       font_info[i].special_graphic[j] = font_info[i].graphic;
 223       font_info[i].special_bitmap_id[j] = i;
 224     }
 225   }
 226
 227   /* initialize special font/graphic mapping from static configuration */
 228   for (i = 0; font_to_graphic[i].font_nr > -1; i++)
 229   {
 230     int font_nr      = font_to_graphic[i].font_nr;
 231     int special      = font_to_graphic[i].special;
 232     int graphic      = font_to_graphic[i].graphic;
 233     int base_graphic = font2baseimg(font_nr);
 234
 235     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 236     {
 237       boolean base_redefined =
 238         getImageListEntryFromImageID(base_graphic)->redefined;
 239       boolean special_redefined =
 240         getImageListEntryFromImageID(graphic)->redefined;
 241
 242       /* if the base font ("font.title_1", for example) has been redefined,
 243          but not the special font ("font.title_1.LEVELS", for example), do not
 244          use an existing (in this case considered obsolete) special font
 245          anymore, but use the automatically determined default font */
 246       if (base_redefined && !special_redefined)
 247         continue;
 248
 249       font_info[font_nr].special_graphic[special] = graphic;
 250       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
 251       num_font_bitmaps++;
 252     }
 253   }
 254
 255   /* initialize special font/graphic mapping from dynamic configuration */
 256   for (i = 0; i < num_property_mappings; i++)
 257   {
 258     int font_nr = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
 259     int special = property_mapping[i].ext3_index;
 260     int graphic = property_mapping[i].artwork_index;
 261
 262     if (font_nr < 0)
 263       continue;
 264
 265     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 266     {
 267       font_info[font_nr].special_graphic[special] = graphic;
 268       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
 269       num_font_bitmaps++;
 270     }
 271   }
 272
 273   /* reset non-redefined ".active" font graphics if normal font is redefined */
 274   /* (this different treatment is needed because normal and active fonts are
 275      independently defined ("active" is not a property of font definitions!) */
 276   for (i = 0; i < NUM_FONTS; i++)
 277   {
 278     int font_nr_base = i;
 279     int font_nr_active = FONT_ACTIVE(font_nr_base);
 280
 281     /* check only those fonts with exist as normal and ".active" variant */
 282     if (font_nr_base != font_nr_active)
 283     {
 284       int base_graphic = font_info[font_nr_base].graphic;
 285       int active_graphic = font_info[font_nr_active].graphic;
 286       boolean base_redefined =
 287         getImageListEntryFromImageID(base_graphic)->redefined;
 288       boolean active_redefined =
 289         getImageListEntryFromImageID(active_graphic)->redefined;
 290
 291       /* if the base font ("font.menu_1", for example) has been redefined,
 292          but not the active font ("font.menu_1.active", for example), do not
 293          use an existing (in this case considered obsolete) active font
 294          anymore, but use the automatically determined default font */
 295       if (base_redefined && !active_redefined)
 296         font_info[font_nr_active].graphic = base_graphic;
 297
 298       /* now also check each "special" font (which may be the same as above) */
 299       for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 300       {
 301         int base_graphic = font_info[font_nr_base].special_graphic[j];
 302         int active_graphic = font_info[font_nr_active].special_graphic[j];
 303         boolean base_redefined =
 304           getImageListEntryFromImageID(base_graphic)->redefined;
 305         boolean active_redefined =
 306           getImageListEntryFromImageID(active_graphic)->redefined;
 307
 308         /* same as above, but check special graphic definitions, for example:
 309            redefined "font.menu_1.MAIN" invalidates "font.menu_1.active.MAIN" */
 310         if (base_redefined && !active_redefined)
 311         {
 312           font_info[font_nr_active].special_graphic[j] =
 313             font_info[font_nr_base].special_graphic[j];
 314           font_info[font_nr_active].special_bitmap_id[j] =
 315             font_info[font_nr_base].special_bitmap_id[j];
 316         }
 317       }
 318     }
 319   }
 320
 321   /* ---------- initialize font bitmap array ---------- */
 322
 323   if (font_bitmap_info != NULL)
 324     FreeFontInfo(font_bitmap_info);
 325
 326   font_bitmap_info =
 327     checked_calloc(num_font_bitmaps * sizeof(struct FontBitmapInfo));
 328
 329   /* ---------- initialize font bitmap definitions ---------- */
 330
 331   for (i = 0; i < NUM_FONTS; i++)
 332   {
 333     if (i < NUM_INITIAL_FONTS)
 334     {
 335       font_bitmap_info[i] = font_initial[i];
 336       continue;
 337     }
 338
 339     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 340     {
 341       int font_bitmap_id = font_info[i].special_bitmap_id[j];
 342       int graphic = font_info[i].special_graphic[j];
 343
 344       /* set 'graphic_info' for font entries, if uninitialized (guessed) */
 345       if (graphic_info[graphic].anim_frames < MIN_NUM_CHARS_PER_FONT)
 346       {
 347         graphic_info[graphic].anim_frames = DEFAULT_NUM_CHARS_PER_FONT;
 348         graphic_info[graphic].anim_frames_per_line = DEFAULT_NUM_CHARS_PER_LINE;
 349       }
 350
 351       /* copy font relevant information from graphics information */
 352       font_bitmap_info[font_bitmap_id].bitmap = graphic_info[graphic].bitmap;
 353       font_bitmap_info[font_bitmap_id].src_x  = graphic_info[graphic].src_x;
 354       font_bitmap_info[font_bitmap_id].src_y  = graphic_info[graphic].src_y;
 355       font_bitmap_info[font_bitmap_id].width  = graphic_info[graphic].width;
 356       font_bitmap_info[font_bitmap_id].height = graphic_info[graphic].height;
 357
 358       font_bitmap_info[font_bitmap_id].draw_xoffset =
 359         graphic_info[graphic].draw_xoffset;
 360       font_bitmap_info[font_bitmap_id].draw_yoffset =
 361         graphic_info[graphic].draw_yoffset;
 362
 363       font_bitmap_info[font_bitmap_id].num_chars =
 364         graphic_info[graphic].anim_frames;
 365       font_bitmap_info[font_bitmap_id].num_chars_per_line =
 366         graphic_info[graphic].anim_frames_per_line;
 367     }
 368   }
 369
 370   InitFontInfo(font_bitmap_info, num_font_bitmaps, getFontBitmapID);
 371 }
 372
 373 void InitElementGraphicInfo()
 374 {
 375   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 376   int num_property_mappings = getImageListPropertyMappingSize();
 377   int i, act, dir;
 378
 379   if (graphic_info == NULL)             /* still at startup phase */
 380     return;
 381
 382   /* set values to -1 to identify later as "uninitialized" values */
 383   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 384   {
 385     for (act = 0; act < NUM_ACTIONS; act++)
 386     {
 387       element_info[i].graphic[act] = -1;
 388       element_info[i].crumbled[act] = -1;
 389
 390       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 391       {
 392         element_info[i].direction_graphic[act][dir] = -1;
 393         element_info[i].direction_crumbled[act][dir] = -1;
 394       }
 395     }
 396   }
 397
 398   /* initialize normal element/graphic mapping from static configuration */
 399   for (i = 0; element_to_graphic[i].element > -1; i++)
 400   {
 401     int element      = element_to_graphic[i].element;
 402     int action       = element_to_graphic[i].action;
 403     int direction    = element_to_graphic[i].direction;
 404     boolean crumbled = element_to_graphic[i].crumbled;
 405     int graphic      = element_to_graphic[i].graphic;
 406     int base_graphic = el2baseimg(element);
 407
 408     if (graphic_info[graphic].bitmap == NULL)
 409       continue;
 410
 411     if ((action > -1 || direction > -1 || crumbled == TRUE) &&
 412         base_graphic != -1)
 413     {
 414       boolean base_redefined =
 415         getImageListEntryFromImageID(base_graphic)->redefined;
 416       boolean act_dir_redefined =
 417         getImageListEntryFromImageID(graphic)->redefined;
 418
 419       /* if the base graphic ("emerald", for example) has been redefined,
 420          but not the action graphic ("emerald.falling", for example), do not
 421          use an existing (in this case considered obsolete) action graphic
 422          anymore, but use the automatically determined default graphic */
 423       if (base_redefined && !act_dir_redefined)
 424         continue;
 425     }
 426
 427     if (action < 0)
 428       action = ACTION_DEFAULT;
 429
 430     if (crumbled)
 431     {
 432       if (direction > -1)
 433         element_info[element].direction_crumbled[action][direction] = graphic;
 434       else
 435         element_info[element].crumbled[action] = graphic;
 436     }
 437     else
 438     {
 439       if (direction > -1)
 440         element_info[element].direction_graphic[action][direction] = graphic;
 441       else
 442         element_info[element].graphic[action] = graphic;
 443     }
 444   }
 445
 446   /* initialize normal element/graphic mapping from dynamic configuration */
 447   for (i = 0; i < num_property_mappings; i++)
 448   {
 449     int element   = property_mapping[i].base_index;
 450     int action    = property_mapping[i].ext1_index;
 451     int direction = property_mapping[i].ext2_index;
 452     int special   = property_mapping[i].ext3_index;
 453     int graphic   = property_mapping[i].artwork_index;
 454     boolean crumbled = FALSE;
 455
 456     if (special == GFX_SPECIAL_ARG_CRUMBLED)
 457     {
 458       special = -1;
 459       crumbled = TRUE;
 460     }
 461
 462     if (graphic_info[graphic].bitmap == NULL)
 463       continue;
 464
 465     if (element >= MAX_NUM_ELEMENTS || special != -1)
 466       continue;
 467
 468     if (action < 0)
 469       action = ACTION_DEFAULT;
 470
 471     if (crumbled)
 472     {
 473       if (direction < 0)
 474         for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 475           element_info[element].direction_crumbled[action][dir] = -1;
 476
 477       if (direction > -1)
 478         element_info[element].direction_crumbled[action][direction] = graphic;
 479       else
 480         element_info[element].crumbled[action] = graphic;
 481     }
 482     else
 483     {
 484       if (direction < 0)
 485         for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 486           element_info[element].direction_graphic[action][dir] = -1;
 487
 488       if (direction > -1)
 489         element_info[element].direction_graphic[action][direction] = graphic;
 490       else
 491         element_info[element].graphic[action] = graphic;
 492     }
 493   }
 494
 495   /* now copy all graphics that are defined to be cloned from other graphics */
 496   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 497   {
 498     int graphic = element_info[i].graphic[ACTION_DEFAULT];
 499     int crumbled_like, diggable_like;
 500
 501     if (graphic == -1)
 502       continue;
 503
 504     crumbled_like = graphic_info[graphic].crumbled_like;
 505     diggable_like = graphic_info[graphic].diggable_like;
 506
 507     if (crumbled_like != -1 && element_info[i].crumbled[ACTION_DEFAULT] == -1)
 508     {
 509       for (act = 0; act < NUM_ACTIONS; act++)
 510         element_info[i].crumbled[act] =
 511           element_info[crumbled_like].crumbled[act];
 512       for (act = 0; act < NUM_ACTIONS; act++)
 513         for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 514           element_info[i].direction_crumbled[act][dir] =
 515             element_info[crumbled_like].direction_crumbled[act][dir];
 516     }
 517
 518     if (diggable_like != -1 && element_info[i].graphic[ACTION_DIGGING] == -1)
 519     {
 520       element_info[i].graphic[ACTION_DIGGING] =
 521         element_info[diggable_like].graphic[ACTION_DIGGING];
 522       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 523         element_info[i].direction_graphic[ACTION_DIGGING][dir] =
 524           element_info[diggable_like].direction_graphic[ACTION_DIGGING][dir];
 525     }
 526   }
 527
 528 #if 1
 529   /* set hardcoded definitions for some runtime elements without graphic */
 530   element_info[EL_AMOEBA_TO_DIAMOND].graphic[ACTION_DEFAULT] = IMG_AMOEBA_DEAD;
 531 #endif
 532
 533 #if 1
 534   /* set hardcoded definitions for some internal elements without graphic */
 535   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 536   {
 537     if (IS_EDITOR_CASCADE_INACTIVE(i))
 538       element_info[i].graphic[ACTION_DEFAULT] = IMG_EDITOR_CASCADE_LIST;
 539     else if (IS_EDITOR_CASCADE_ACTIVE(i))
 540       element_info[i].graphic[ACTION_DEFAULT] = IMG_EDITOR_CASCADE_LIST_ACTIVE;
 541   }
 542 #endif
 543
 544   /* now set all undefined/invalid graphics to -1 to set to default after it */
 545   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 546   {
 547     for (act = 0; act < NUM_ACTIONS; act++)
 548     {
 549       int graphic;
 550
 551       graphic = element_info[i].graphic[act];
 552       if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 553         element_info[i].graphic[act] = -1;
 554
 555       graphic = element_info[i].crumbled[act];
 556       if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 557         element_info[i].crumbled[act] = -1;
 558
 559       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 560       {
 561         graphic = element_info[i].direction_graphic[act][dir];
 562         if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 563           element_info[i].direction_graphic[act][dir] = -1;
 564
 565         graphic = element_info[i].direction_crumbled[act][dir];
 566         if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 567           element_info[i].direction_crumbled[act][dir] = -1;
 568       }
 569     }
 570   }
 571
 572   /* adjust graphics with 2nd tile for movement according to direction
 573      (do this before correcting '-1' values to minimize calculations) */
 574   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 575   {
 576     for (act = 0; act < NUM_ACTIONS; act++)
 577     {
 578       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 579       {
 580         int graphic = element_info[i].direction_graphic[act][dir];
 581         int move_dir = (act == ACTION_FALLING ? MV_BIT_DOWN : dir);
 582
 583         if (act == ACTION_FALLING)      /* special case */
 584           graphic = element_info[i].graphic[act];
 585
 586         if (graphic != -1 &&
 587             graphic_info[graphic].double_movement &&
 588             graphic_info[graphic].swap_double_tiles != 0)
 589         {
 590           struct GraphicInfo *g = &graphic_info[graphic];
 591           int src_x_front = g->src_x;
 592           int src_y_front = g->src_y;
 593           int src_x_back = g->src_x + g->offset2_x;
 594           int src_y_back = g->src_y + g->offset2_y;
 595           boolean frames_are_ordered_diagonally = (g->offset_x != 0 &&
 596                                                    g->offset_y != 0);
 597           boolean front_is_left_or_upper = (src_x_front < src_x_back ||
 598                                             src_y_front < src_y_back);
 599           boolean swap_movement_tiles_always = (g->swap_double_tiles == 1);
 600           boolean swap_movement_tiles_autodetected =
 601             (!frames_are_ordered_diagonally &&
 602              ((move_dir == MV_BIT_LEFT  && !front_is_left_or_upper) ||
 603               (move_dir == MV_BIT_UP    && !front_is_left_or_upper) ||
 604               (move_dir == MV_BIT_RIGHT &&  front_is_left_or_upper) ||
 605               (move_dir == MV_BIT_DOWN  &&  front_is_left_or_upper)));
 606           Bitmap *dummy;
 607
 608           /* swap frontside and backside graphic tile coordinates, if needed */
 609           if (swap_movement_tiles_always || swap_movement_tiles_autodetected)
 610           {
 611             /* get current (wrong) backside tile coordinates */
 612             getGraphicSourceExt(graphic, 0, &dummy, &src_x_back, &src_y_back,
 613                                 TRUE);
 614
 615             /* set frontside tile coordinates to backside tile coordinates */
 616             g->src_x = src_x_back;
 617             g->src_y = src_y_back;
 618
 619             /* invert tile offset to point to new backside tile coordinates */
 620             g->offset2_x *= -1;
 621             g->offset2_y *= -1;
 622
 623             /* do not swap front and backside tiles again after correction */
 624             g->swap_double_tiles = 0;
 625           }
 626         }
 627       }
 628     }
 629   }
 630
 631   /* now set all '-1' values to element specific default values */
 632   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 633   {
 634     int default_graphic = element_info[i].graphic[ACTION_DEFAULT];
 635     int default_crumbled = element_info[i].crumbled[ACTION_DEFAULT];
 636     int default_direction_graphic[NUM_DIRECTIONS_FULL];
 637     int default_direction_crumbled[NUM_DIRECTIONS_FULL];
 638
 639     if (default_graphic == -1)
 640       default_graphic = IMG_UNKNOWN;
 641 #if 1
 642     if (default_crumbled == -1)
 643       default_crumbled = default_graphic;
 644 #else
 645     /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
 646     if (default_crumbled == -1)
 647       default_crumbled = IMG_EMPTY;
 648 #endif
 649
 650     for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 651     {
 652       default_direction_graphic[dir] =
 653         element_info[i].direction_graphic[ACTION_DEFAULT][dir];
 654       default_direction_crumbled[dir] =
 655         element_info[i].direction_crumbled[ACTION_DEFAULT][dir];
 656
 657       if (default_direction_graphic[dir] == -1)
 658         default_direction_graphic[dir] = default_graphic;
 659 #if 1
 660       if (default_direction_crumbled[dir] == -1)
 661         default_direction_crumbled[dir] = default_direction_graphic[dir];
 662 #else
 663       /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
 664       if (default_direction_crumbled[dir] == -1)
 665         default_direction_crumbled[dir] = default_crumbled;
 666 #endif
 667     }
 668
 669     for (act = 0; act < NUM_ACTIONS; act++)
 670     {
 671       boolean act_remove = ((IS_DIGGABLE(i)    && act == ACTION_DIGGING)  ||
 672                             (IS_SNAPPABLE(i)   && act == ACTION_SNAPPING) ||
 673                             (IS_COLLECTIBLE(i) && act == ACTION_COLLECTING));
 674       boolean act_turning = (act == ACTION_TURNING_FROM_LEFT ||
 675                              act == ACTION_TURNING_FROM_RIGHT ||
 676                              act == ACTION_TURNING_FROM_UP ||
 677                              act == ACTION_TURNING_FROM_DOWN);
 678
 679       /* generic default action graphic (defined by "[default]" directive) */
 680       int default_action_graphic = element_info[EL_DEFAULT].graphic[act];
 681       int default_action_crumbled = element_info[EL_DEFAULT].crumbled[act];
 682       int default_remove_graphic = IMG_EMPTY;
 683
 684       if (act_remove && default_action_graphic != -1)
 685         default_remove_graphic = default_action_graphic;
 686
 687       /* look for special default action graphic (classic game specific) */
 688       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].graphic[act] != -1)
 689         default_action_graphic = element_info[EL_BD_DEFAULT].graphic[act];
 690       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].graphic[act] != -1)
 691         default_action_graphic = element_info[EL_SP_DEFAULT].graphic[act];
 692       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].graphic[act] != -1)
 693         default_action_graphic = element_info[EL_SB_DEFAULT].graphic[act];
 694
 695       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].crumbled[act] != -1)
 696         default_action_crumbled = element_info[EL_BD_DEFAULT].crumbled[act];
 697       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].crumbled[act] != -1)
 698         default_action_crumbled = element_info[EL_SP_DEFAULT].crumbled[act];
 699       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].crumbled[act] != -1)
 700         default_action_crumbled = element_info[EL_SB_DEFAULT].crumbled[act];
 701
 702 #if 1
 703       /* !!! needed because EL_EMPTY_SPACE treated as IS_SP_ELEMENT !!! */
 704       /* !!! make this better !!! */
 705       if (i == EL_EMPTY_SPACE)
 706       {
 707         default_action_graphic = element_info[EL_DEFAULT].graphic[act];
 708         default_action_crumbled = element_info[EL_DEFAULT].crumbled[act];
 709       }
 710 #endif
 711
 712       if (default_action_graphic == -1)
 713         default_action_graphic = default_graphic;
 714 #if 1
 715       if (default_action_crumbled == -1)
 716         default_action_crumbled = default_action_graphic;
 717 #else
 718       /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
 719       if (default_action_crumbled == -1)
 720         default_action_crumbled = default_crumbled;
 721 #endif
 722
 723       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 724       {
 725         /* use action graphic as the default direction graphic, if undefined */
 726         int default_action_direction_graphic = element_info[i].graphic[act];
 727         int default_action_direction_crumbled = element_info[i].crumbled[act];
 728
 729         /* no graphic for current action -- use default direction graphic */
 730         if (default_action_direction_graphic == -1)
 731           default_action_direction_graphic =
 732             (act_remove ? default_remove_graphic :
 733              act_turning ?
 734              element_info[i].direction_graphic[ACTION_TURNING][dir] :
 735              default_action_graphic != default_graphic ?
 736              default_action_graphic :
 737              default_direction_graphic[dir]);
 738
 739         if (element_info[i].direction_graphic[act][dir] == -1)
 740           element_info[i].direction_graphic[act][dir] =
 741             default_action_direction_graphic;
 742
 743 #if 1
 744         if (default_action_direction_crumbled == -1)
 745           default_action_direction_crumbled =
 746             element_info[i].direction_graphic[act][dir];
 747 #else
 748         if (default_action_direction_crumbled == -1)
 749           default_action_direction_crumbled =
 750             (act_remove ? default_remove_graphic :
 751              act_turning ?
 752              element_info[i].direction_crumbled[ACTION_TURNING][dir] :
 753              default_action_crumbled != default_crumbled ?
 754              default_action_crumbled :
 755              default_direction_crumbled[dir]);
 756 #endif
 757
 758         if (element_info[i].direction_crumbled[act][dir] == -1)
 759           element_info[i].direction_crumbled[act][dir] =
 760             default_action_direction_crumbled;
 761       }
 762
 763       /* no graphic for this specific action -- use default action graphic */
 764       if (element_info[i].graphic[act] == -1)
 765         element_info[i].graphic[act] =
 766           (act_remove ? default_remove_graphic :
 767            act_turning ? element_info[i].graphic[ACTION_TURNING] :
 768            default_action_graphic);
 769 #if 1
 770       if (element_info[i].crumbled[act] == -1)
 771         element_info[i].crumbled[act] = element_info[i].graphic[act];
 772 #else
 773       if (element_info[i].crumbled[act] == -1)
 774         element_info[i].crumbled[act] =
 775           (act_remove ? default_remove_graphic :
 776            act_turning ? element_info[i].crumbled[ACTION_TURNING] :
 777            default_action_crumbled);
 778 #endif
 779     }
 780   }
 781
 782 #if 0
 783   /* !!! THIS ALSO CLEARS SPECIAL FLAGS (AND IS NOT NEEDED ANYWAY) !!! */
 784   /* set animation mode to "none" for each graphic with only 1 frame */
 785   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 786   {
 787     for (act = 0; act < NUM_ACTIONS; act++)
 788     {
 789       int graphic = element_info[i].graphic[act];
 790       int crumbled = element_info[i].crumbled[act];
 791
 792       if (graphic_info[graphic].anim_frames == 1)
 793         graphic_info[graphic].anim_mode = ANIM_NONE;
 794       if (graphic_info[crumbled].anim_frames == 1)
 795         graphic_info[crumbled].anim_mode = ANIM_NONE;
 796
 797       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 798       {
 799         graphic = element_info[i].direction_graphic[act][dir];
 800         crumbled = element_info[i].direction_crumbled[act][dir];
 801
 802         if (graphic_info[graphic].anim_frames == 1)
 803           graphic_info[graphic].anim_mode = ANIM_NONE;
 804         if (graphic_info[crumbled].anim_frames == 1)
 805           graphic_info[crumbled].anim_mode = ANIM_NONE;
 806       }
 807     }
 808   }
 809 #endif
 810
 811 #if 0
 812 #if DEBUG
 813   if (options.verbose)
 814   {
 815     for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 816       if (element_info[i].graphic[ACTION_DEFAULT] == IMG_UNKNOWN &&
 817           i != EL_UNKNOWN)
 818         Error(ERR_RETURN, "warning: no graphic for element '%s' (%d)",
 819               element_info[i].token_name, i);
 820   }
 821 #endif
 822 #endif
 823 }
 824
 825 void InitElementSpecialGraphicInfo()
 826 {
 827   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 828   int num_property_mappings = getImageListPropertyMappingSize();
 829   int i, j;
 830
 831   /* always start with reliable default values */
 832   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 833     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 834       element_info[i].special_graphic[j] =
 835         element_info[i].graphic[ACTION_DEFAULT];
 836
 837   /* initialize special element/graphic mapping from static configuration */
 838   for (i = 0; element_to_special_graphic[i].element > -1; i++)
 839   {
 840     int element = element_to_special_graphic[i].element;
 841     int special = element_to_special_graphic[i].special;
 842     int graphic = element_to_special_graphic[i].graphic;
 843     int base_graphic = el2baseimg(element);
 844     boolean base_redefined =
 845       getImageListEntryFromImageID(base_graphic)->redefined;
 846     boolean special_redefined =
 847       getImageListEntryFromImageID(graphic)->redefined;
 848
 849     /* if the base graphic ("emerald", for example) has been redefined,
 850        but not the special graphic ("emerald.EDITOR", for example), do not
 851        use an existing (in this case considered obsolete) special graphic
 852        anymore, but use the automatically created (down-scaled) graphic */
 853     if (base_redefined && !special_redefined)
 854       continue;
 855
 856     element_info[element].special_graphic[special] = graphic;
 857   }
 858
 859   /* initialize special element/graphic mapping from dynamic configuration */
 860   for (i = 0; i < num_property_mappings; i++)
 861   {
 862     int element = property_mapping[i].base_index;
 863     int special = property_mapping[i].ext3_index;
 864     int graphic = property_mapping[i].artwork_index;
 865
 866     if (element >= MAX_NUM_ELEMENTS)
 867       continue;
 868
 869     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 870       element_info[element].special_graphic[special] = graphic;
 871   }
 872
 873   /* now set all undefined/invalid graphics to default */
 874   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 875     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 876       if (graphic_info[element_info[i].special_graphic[j]].bitmap == NULL)
 877         element_info[i].special_graphic[j] =
 878           element_info[i].graphic[ACTION_DEFAULT];
 879 }
 880
 881 static int get_graphic_parameter_value(char *value_raw, char *suffix, int type)
 882 {
 883   int i;
 884   int x = 0;
 885
 886   if (type != TYPE_TOKEN)
 887     return get_parameter_value(value_raw, suffix, type);
 888
 889   if (strEqual(value_raw, ARG_UNDEFINED))
 890     return ARG_UNDEFINED_VALUE;
 891
 892   /* !!! OPTIMIZE THIS BY USING HASH !!! */
 893   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 894     if (strEqual(element_info[i].token_name, value_raw))
 895       return i;
 896
 897   /* !!! OPTIMIZE THIS BY USING HASH !!! */
 898   for (i = 0; image_config[i].token != NULL; i++)
 899   {
 900     int len_config_value = strlen(image_config[i].value);
 901
 902     if (!strEqual(&image_config[i].value[len_config_value - 4], ".pcx") &&
 903         !strEqual(&image_config[i].value[len_config_value - 4], ".wav") &&
 904         !strEqual(image_config[i].value, UNDEFINED_FILENAME))
 905       continue;
 906
 907     if (strEqual(image_config[i].token, value_raw))
 908       return x;
 909
 910     x++;
 911   }
 912
 913   return -1;
 914 }
 915
 916 static int get_scaled_graphic_width(int graphic)
 917 {
 918   int original_width = getOriginalImageWidthFromImageID(graphic);
 919   int scale_up_factor = graphic_info[graphic].scale_up_factor;
 920
 921   return original_width * scale_up_factor;
 922 }
 923
 924 static int get_scaled_graphic_height(int graphic)
 925 {
 926   int original_height = getOriginalImageHeightFromImageID(graphic);
 927   int scale_up_factor = graphic_info[graphic].scale_up_factor;
 928
 929   return original_height * scale_up_factor;
 930 }
 931
 932 static void set_graphic_parameters(int graphic)
 933 {
 934   struct FileInfo *image = getImageListEntryFromImageID(graphic);
 935   char **parameter_raw = image->parameter;
 936   Bitmap *src_bitmap = getBitmapFromImageID(graphic);
 937   int parameter[NUM_GFX_ARGS];
 938   int anim_frames_per_row = 1, anim_frames_per_col = 1;
 939   int anim_frames_per_line = 1;
 940   int i;
 941
 942   /* if fallback to default artwork is done, also use the default parameters */
 943   if (image->fallback_to_default)
 944     parameter_raw = image->default_parameter;
 945
 946   /* get integer values from string parameters */
 947   for (i = 0; i < NUM_GFX_ARGS; i++)
 948     parameter[i] = get_graphic_parameter_value(parameter_raw[i],
 949                                                image_config_suffix[i].token,
 950                                                image_config_suffix[i].type);
 951
 952   graphic_info[graphic].bitmap = src_bitmap;
 953
 954   /* always start with reliable default values */
 955   graphic_info[graphic].src_image_width = 0;
 956   graphic_info[graphic].src_image_height = 0;
 957   graphic_info[graphic].src_x = 0;
 958   graphic_info[graphic].src_y = 0;
 959   graphic_info[graphic].width  = TILEX; /* default for element graphics */
 960   graphic_info[graphic].height = TILEY; /* default for element graphics */
 961   graphic_info[graphic].offset_x = 0;   /* one or both of these values ... */
 962   graphic_info[graphic].offset_y = 0;   /* ... will be corrected later */
 963   graphic_info[graphic].offset2_x = 0;  /* one or both of these values ... */
 964   graphic_info[graphic].offset2_y = 0;  /* ... will be corrected later */
 965   graphic_info[graphic].swap_double_tiles = -1; /* auto-detect tile swapping */
 966   graphic_info[graphic].crumbled_like = -1;     /* do not use clone element */
 967   graphic_info[graphic].diggable_like = -1;     /* do not use clone element */
 968   graphic_info[graphic].border_size = TILEX / 8;  /* "CRUMBLED" border size */
 969   graphic_info[graphic].scale_up_factor = 1;    /* default: no scaling up */
 970   graphic_info[graphic].clone_from = -1;        /* do not use clone graphic */
 971   graphic_info[graphic].anim_delay_fixed = 0;
 972   graphic_info[graphic].anim_delay_random = 0;
 973   graphic_info[graphic].post_delay_fixed = 0;
 974   graphic_info[graphic].post_delay_random = 0;
 975   graphic_info[graphic].fade_delay = -1;
 976   graphic_info[graphic].post_delay = -1;
 977   graphic_info[graphic].auto_delay = -1;
 978
 979 #if 1
 980   /* optional zoom factor for scaling up the image to a larger size */
 981   if (parameter[GFX_ARG_SCALE_UP_FACTOR] != ARG_UNDEFINED_VALUE)
 982     graphic_info[graphic].scale_up_factor = parameter[GFX_ARG_SCALE_UP_FACTOR];
 983   if (graphic_info[graphic].scale_up_factor < 1)
 984     graphic_info[graphic].scale_up_factor = 1;          /* no scaling */
 985 #endif
 986
 987 #if 1
 988   if (graphic_info[graphic].use_image_size)
 989   {
 990     /* set new default bitmap size (with scaling, but without small images) */
 991     graphic_info[graphic].width  = get_scaled_graphic_width(graphic);
 992     graphic_info[graphic].height = get_scaled_graphic_height(graphic);
 993   }
 994 #endif
 995
 996   /* optional x and y tile position of animation frame sequence */
 997   if (parameter[GFX_ARG_XPOS] != ARG_UNDEFINED_VALUE)
 998     graphic_info[graphic].src_x = parameter[GFX_ARG_XPOS] * TILEX;
 999   if (parameter[GFX_ARG_YPOS] != ARG_UNDEFINED_VALUE)
1000     graphic_info[graphic].src_y = parameter[GFX_ARG_YPOS] * TILEY;
1001
1002   /* optional x and y pixel position of animation frame sequence */
1003   if (parameter[GFX_ARG_X] != ARG_UNDEFINED_VALUE)
1004     graphic_info[graphic].src_x = parameter[GFX_ARG_X];
1005   if (parameter[GFX_ARG_Y] != ARG_UNDEFINED_VALUE)
1006     graphic_info[graphic].src_y = parameter[GFX_ARG_Y];
1007
1008   /* optional width and height of each animation frame */
1009   if (parameter[GFX_ARG_WIDTH] != ARG_UNDEFINED_VALUE)
1010     graphic_info[graphic].width = parameter[GFX_ARG_WIDTH];
1011   if (parameter[GFX_ARG_HEIGHT] != ARG_UNDEFINED_VALUE)
1012     graphic_info[graphic].height = parameter[GFX_ARG_HEIGHT];
1013
1014 #if 0
1015   /* optional zoom factor for scaling up the image to a larger size */
1016   if (parameter[GFX_ARG_SCALE_UP_FACTOR] != ARG_UNDEFINED_VALUE)
1017     graphic_info[graphic].scale_up_factor = parameter[GFX_ARG_SCALE_UP_FACTOR];
1018   if (graphic_info[graphic].scale_up_factor < 1)
1019     graphic_info[graphic].scale_up_factor = 1;          /* no scaling */
1020 #endif
1021
1022   if (src_bitmap)
1023   {
1024     /* get final bitmap size (with scaling, but without small images) */
1025     int src_image_width  = get_scaled_graphic_width(graphic);
1026     int src_image_height = get_scaled_graphic_height(graphic);
1027
1028     anim_frames_per_row = src_image_width  / graphic_info[graphic].width;
1029     anim_frames_per_col = src_image_height / graphic_info[graphic].height;
1030
1031     graphic_info[graphic].src_image_width  = src_image_width;
1032     graphic_info[graphic].src_image_height = src_image_height;
1033   }
1034
1035   /* correct x or y offset dependent of vertical or horizontal frame order */
1036   if (parameter[GFX_ARG_VERTICAL])      /* frames are ordered vertically */
1037   {
1038     graphic_info[graphic].offset_y =
1039       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
1040        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].height);
1041     anim_frames_per_line = anim_frames_per_col;
1042   }
1043   else                                  /* frames are ordered horizontally */
1044   {
1045     graphic_info[graphic].offset_x =
1046       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
1047        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].width);
1048     anim_frames_per_line = anim_frames_per_row;
1049   }
1050
1051   /* optionally, the x and y offset of frames can be specified directly */
1052   if (parameter[GFX_ARG_XOFFSET] != ARG_UNDEFINED_VALUE)
1053     graphic_info[graphic].offset_x = parameter[GFX_ARG_XOFFSET];
1054   if (parameter[GFX_ARG_YOFFSET] != ARG_UNDEFINED_VALUE)
1055     graphic_info[graphic].offset_y = parameter[GFX_ARG_YOFFSET];
1056
1057   /* optionally, moving animations may have separate start and end graphics */
1058   graphic_info[graphic].double_movement = parameter[GFX_ARG_2ND_MOVEMENT_TILE];
1059
1060   if (parameter[GFX_ARG_2ND_VERTICAL] == ARG_UNDEFINED_VALUE)
1061     parameter[GFX_ARG_2ND_VERTICAL] = !parameter[GFX_ARG_VERTICAL];
1062
1063   /* correct x or y offset2 dependent of vertical or horizontal frame order */
1064   if (parameter[GFX_ARG_2ND_VERTICAL])  /* frames are ordered vertically */
1065     graphic_info[graphic].offset2_y =
1066       (parameter[GFX_ARG_2ND_OFFSET] != ARG_UNDEFINED_VALUE ?
1067        parameter[GFX_ARG_2ND_OFFSET] : graphic_info[graphic].height);
1068   else                                  /* frames are ordered horizontally */
1069     graphic_info[graphic].offset2_x =
1070       (parameter[GFX_ARG_2ND_OFFSET] != ARG_UNDEFINED_VALUE ?
1071        parameter[GFX_ARG_2ND_OFFSET] : graphic_info[graphic].width);
1072
1073   /* optionally, the x and y offset of 2nd graphic can be specified directly */
1074   if (parameter[GFX_ARG_2ND_XOFFSET] != ARG_UNDEFINED_VALUE)
1075     graphic_info[graphic].offset2_x = parameter[GFX_ARG_2ND_XOFFSET];
1076   if (parameter[GFX_ARG_2ND_YOFFSET] != ARG_UNDEFINED_VALUE)
1077     graphic_info[graphic].offset2_y = parameter[GFX_ARG_2ND_YOFFSET];
1078
1079   /* optionally, the second movement tile can be specified as start tile */
1080   if (parameter[GFX_ARG_2ND_SWAP_TILES] != ARG_UNDEFINED_VALUE)
1081     graphic_info[graphic].swap_double_tiles= parameter[GFX_ARG_2ND_SWAP_TILES];
1082
1083   /* automatically determine correct number of frames, if not defined */
1084   if (parameter[GFX_ARG_FRAMES] != ARG_UNDEFINED_VALUE)
1085     graphic_info[graphic].anim_frames = parameter[GFX_ARG_FRAMES];
1086   else if (parameter[GFX_ARG_XPOS] == 0 && !parameter[GFX_ARG_VERTICAL])
1087     graphic_info[graphic].anim_frames = anim_frames_per_row;
1088   else if (parameter[GFX_ARG_YPOS] == 0 && parameter[GFX_ARG_VERTICAL])
1089     graphic_info[graphic].anim_frames = anim_frames_per_col;
1090   else
1091     graphic_info[graphic].anim_frames = 1;
1092
1093   if (graphic_info[graphic].anim_frames == 0)   /* frames must be at least 1 */
1094     graphic_info[graphic].anim_frames = 1;
1095
1096   graphic_info[graphic].anim_frames_per_line =
1097     (parameter[GFX_ARG_FRAMES_PER_LINE] != ARG_UNDEFINED_VALUE ?
1098      parameter[GFX_ARG_FRAMES_PER_LINE] : anim_frames_per_line);
1099
1100   graphic_info[graphic].anim_delay = parameter[GFX_ARG_DELAY];
1101   if (graphic_info[graphic].anim_delay == 0)    /* delay must be at least 1 */
1102     graphic_info[graphic].anim_delay = 1;
1103
1104   graphic_info[graphic].anim_mode = parameter[GFX_ARG_ANIM_MODE];
1105 #if 0
1106   if (graphic_info[graphic].anim_frames == 1)
1107     graphic_info[graphic].anim_mode = ANIM_NONE;
1108 #endif
1109
1110   /* automatically determine correct start frame, if not defined */
1111   if (parameter[GFX_ARG_START_FRAME] == ARG_UNDEFINED_VALUE)
1112     graphic_info[graphic].anim_start_frame = 0;
1113   else if (graphic_info[graphic].anim_mode & ANIM_REVERSE)
1114     graphic_info[graphic].anim_start_frame =
1115       graphic_info[graphic].anim_frames - parameter[GFX_ARG_START_FRAME] - 1;
1116   else
1117     graphic_info[graphic].anim_start_frame = parameter[GFX_ARG_START_FRAME];
1118
1119   /* animation synchronized with global frame counter, not move position */
1120   graphic_info[graphic].anim_global_sync = parameter[GFX_ARG_GLOBAL_SYNC];
1121
1122   /* optional element for cloning crumble graphics */
1123   if (parameter[GFX_ARG_CRUMBLED_LIKE] != ARG_UNDEFINED_VALUE)
1124     graphic_info[graphic].crumbled_like = parameter[GFX_ARG_CRUMBLED_LIKE];
1125
1126   /* optional element for cloning digging graphics */
1127   if (parameter[GFX_ARG_DIGGABLE_LIKE] != ARG_UNDEFINED_VALUE)
1128     graphic_info[graphic].diggable_like = parameter[GFX_ARG_DIGGABLE_LIKE];
1129
1130   /* optional border size for "crumbling" diggable graphics */
1131   if (parameter[GFX_ARG_BORDER_SIZE] != ARG_UNDEFINED_VALUE)
1132     graphic_info[graphic].border_size = parameter[GFX_ARG_BORDER_SIZE];
1133
1134   /* this is only used for player "boring" and "sleeping" actions */
1135   if (parameter[GFX_ARG_ANIM_DELAY_FIXED] != ARG_UNDEFINED_VALUE)
1136     graphic_info[graphic].anim_delay_fixed =
1137       parameter[GFX_ARG_ANIM_DELAY_FIXED];
1138   if (parameter[GFX_ARG_ANIM_DELAY_RANDOM] != ARG_UNDEFINED_VALUE)
1139     graphic_info[graphic].anim_delay_random =
1140       parameter[GFX_ARG_ANIM_DELAY_RANDOM];
1141   if (parameter[GFX_ARG_POST_DELAY_FIXED] != ARG_UNDEFINED_VALUE)
1142     graphic_info[graphic].post_delay_fixed =
1143       parameter[GFX_ARG_POST_DELAY_FIXED];
1144   if (parameter[GFX_ARG_POST_DELAY_RANDOM] != ARG_UNDEFINED_VALUE)
1145     graphic_info[graphic].post_delay_random =
1146       parameter[GFX_ARG_POST_DELAY_RANDOM];
1147
1148   /* this is only used for toon animations */
1149   graphic_info[graphic].step_offset = parameter[GFX_ARG_STEP_OFFSET];
1150   graphic_info[graphic].step_delay  = parameter[GFX_ARG_STEP_DELAY];
1151
1152   /* this is only used for drawing font characters */
1153   graphic_info[graphic].draw_xoffset = parameter[GFX_ARG_DRAW_XOFFSET];
1154   graphic_info[graphic].draw_yoffset = parameter[GFX_ARG_DRAW_YOFFSET];
1155
1156   /* this is only used for drawing envelope graphics */
1157   graphic_info[graphic].draw_masked = parameter[GFX_ARG_DRAW_MASKED];
1158
1159   /* optional graphic for cloning all graphics settings */
1160   if (parameter[GFX_ARG_CLONE_FROM] != ARG_UNDEFINED_VALUE)
1161     graphic_info[graphic].clone_from = parameter[GFX_ARG_CLONE_FROM];
1162
1163   /* optional settings for drawing title screens */
1164   if (parameter[GFX_ARG_FADE_DELAY] != ARG_UNDEFINED_VALUE)
1165     graphic_info[graphic].fade_delay = parameter[GFX_ARG_FADE_DELAY];
1166   if (parameter[GFX_ARG_POST_DELAY] != ARG_UNDEFINED_VALUE)
1167     graphic_info[graphic].post_delay = parameter[GFX_ARG_POST_DELAY];
1168   if (parameter[GFX_ARG_AUTO_DELAY] != ARG_UNDEFINED_VALUE)
1169     graphic_info[graphic].auto_delay = parameter[GFX_ARG_AUTO_DELAY];
1170 }
1171
1172 static void set_cloned_graphic_parameters(int graphic)
1173 {
1174   int fallback_graphic = IMG_CHAR_EXCLAM;
1175   int max_num_images = getImageListSize();
1176   int clone_graphic = graphic_info[graphic].clone_from;
1177   int num_references_followed = 1;
1178
1179   while (graphic_info[clone_graphic].clone_from != -1 &&
1180          num_references_followed < max_num_images)
1181   {
1182     clone_graphic = graphic_info[clone_graphic].clone_from;
1183
1184     num_references_followed++;
1185   }
1186
1187   if (num_references_followed >= max_num_images)
1188   {
1189     Error(ERR_RETURN_LINE, "-");
1190     Error(ERR_RETURN, "warning: error found in config file:");
1191     Error(ERR_RETURN, "- config file: '%s'", getImageConfigFilename());
1192     Error(ERR_RETURN, "- config token: '%s'", getTokenFromImageID(graphic));
1193     Error(ERR_RETURN, "error: loop discovered when resolving cloned graphics");
1194     Error(ERR_RETURN, "custom graphic rejected for this element/action");
1195
1196     if (graphic == fallback_graphic)
1197       Error(ERR_EXIT, "fatal error: no fallback graphic available");
1198
1199     Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1200     Error(ERR_RETURN_LINE, "-");
1201
1202     graphic_info[graphic] = graphic_info[fallback_graphic];
1203   }
1204   else
1205   {
1206     graphic_info[graphic] = graphic_info[clone_graphic];
1207     graphic_info[graphic].clone_from = clone_graphic;
1208   }
1209 }
1210
1211 static void InitGraphicInfo()
1212 {
1213   int fallback_graphic = IMG_CHAR_EXCLAM;
1214   int num_images = getImageListSize();
1215   int i;
1216
1217 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1218   static boolean clipmasks_initialized = FALSE;
1219   Pixmap src_pixmap;
1220   XGCValues clip_gc_values;
1221   unsigned long clip_gc_valuemask;
1222   GC copy_clipmask_gc = None;
1223 #endif
1224
1225   /* use image size as default values for width and height for these images */
1226   static int full_size_graphics[] =
1227   {
1228     IMG_GLOBAL_BORDER,
1229     IMG_GLOBAL_DOOR,
1230
1231     IMG_BACKGROUND_ENVELOPE_1,
1232     IMG_BACKGROUND_ENVELOPE_2,
1233     IMG_BACKGROUND_ENVELOPE_3,
1234     IMG_BACKGROUND_ENVELOPE_4,
1235
1236     IMG_BACKGROUND,
1237     IMG_BACKGROUND_TITLE,
1238     IMG_BACKGROUND_MESSAGE,
1239     IMG_BACKGROUND_MAIN,
1240     IMG_BACKGROUND_LEVELS,
1241     IMG_BACKGROUND_SCORES,
1242     IMG_BACKGROUND_EDITOR,
1243     IMG_BACKGROUND_INFO,
1244     IMG_BACKGROUND_INFO_ELEMENTS,
1245     IMG_BACKGROUND_INFO_MUSIC,
1246     IMG_BACKGROUND_INFO_CREDITS,
1247     IMG_BACKGROUND_INFO_PROGRAM,
1248     IMG_BACKGROUND_INFO_LEVELSET,
1249     IMG_BACKGROUND_SETUP,
1250     IMG_BACKGROUND_DOOR,
1251
1252     IMG_TITLESCREEN_INITIAL_1,
1253     IMG_TITLESCREEN_INITIAL_2,
1254     IMG_TITLESCREEN_INITIAL_3,
1255     IMG_TITLESCREEN_INITIAL_4,
1256     IMG_TITLESCREEN_INITIAL_5,
1257     IMG_TITLESCREEN_1,
1258     IMG_TITLESCREEN_2,
1259     IMG_TITLESCREEN_3,
1260     IMG_TITLESCREEN_4,
1261     IMG_TITLESCREEN_5,
1262
1263     -1
1264   };
1265
1266   checked_free(graphic_info);
1267
1268   graphic_info = checked_calloc(num_images * sizeof(struct GraphicInfo));
1269
1270 #if 1
1271   /* initialize "use_image_size" flag with default value */
1272   for (i = 0; i < num_images; i++)
1273     graphic_info[i].use_image_size = FALSE;
1274
1275   /* initialize "use_image_size" flag from static configuration above */
1276   for (i = 0; full_size_graphics[i] != -1; i++)
1277     graphic_info[full_size_graphics[i]].use_image_size = TRUE;
1278 #endif
1279
1280 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1281   if (clipmasks_initialized)
1282   {
1283     for (i = 0; i < num_images; i++)
1284     {
1285       if (graphic_info[i].clip_mask)
1286         XFreePixmap(display, graphic_info[i].clip_mask);
1287       if (graphic_info[i].clip_gc)
1288         XFreeGC(display, graphic_info[i].clip_gc);
1289
1290       graphic_info[i].clip_mask = None;
1291       graphic_info[i].clip_gc = None;
1292     }
1293   }
1294 #endif
1295
1296   /* first set all graphic paramaters ... */
1297   for (i = 0; i < num_images; i++)
1298     set_graphic_parameters(i);
1299
1300   /* ... then copy these parameters for cloned graphics */
1301   for (i = 0; i < num_images; i++)
1302     if (graphic_info[i].clone_from != -1)
1303       set_cloned_graphic_parameters(i);
1304
1305   for (i = 0; i < num_images; i++)
1306   {
1307     Bitmap *src_bitmap;
1308     int src_x, src_y;
1309     int width, height;
1310     int first_frame, last_frame;
1311     int src_bitmap_width, src_bitmap_height;
1312
1313     /* now check if no animation frames are outside of the loaded image */
1314
1315     if (graphic_info[i].bitmap == NULL)
1316       continue;         /* skip check for optional images that are undefined */
1317
1318     /* get image size (this can differ from the standard element tile size!) */
1319     width  = graphic_info[i].width;
1320     height = graphic_info[i].height;
1321
1322     /* get final bitmap size (with scaling, but without small images) */
1323     src_bitmap_width  = graphic_info[i].src_image_width;
1324     src_bitmap_height = graphic_info[i].src_image_height;
1325
1326     /* check if first animation frame is inside specified bitmap */
1327
1328     first_frame = 0;
1329     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
1330
1331 #if 1
1332     /* this avoids calculating wrong start position for out-of-bounds frame */
1333     src_x = graphic_info[i].src_x;
1334     src_y = graphic_info[i].src_y;
1335 #endif
1336
1337     if (src_x < 0 || src_y < 0 ||
1338         src_x + width  > src_bitmap_width ||
1339         src_y + height > src_bitmap_height)
1340     {
1341       Error(ERR_RETURN_LINE, "-");
1342       Error(ERR_RETURN, "warning: error found in config file:");
1343       Error(ERR_RETURN, "- config file: '%s'", getImageConfigFilename());
1344       Error(ERR_RETURN, "- config token: '%s'", getTokenFromImageID(i));
1345       Error(ERR_RETURN, "- image file: '%s'", src_bitmap->source_filename);
1346       Error(ERR_RETURN,
1347             "error: first animation frame out of bounds (%d, %d) [%d, %d]",
1348             src_x, src_y, src_bitmap_width, src_bitmap_height);
1349       Error(ERR_RETURN, "custom graphic rejected for this element/action");
1350
1351       if (i == fallback_graphic)
1352         Error(ERR_EXIT, "fatal error: no fallback graphic available");
1353
1354       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1355       Error(ERR_RETURN_LINE, "-");
1356
1357       graphic_info[i] = graphic_info[fallback_graphic];
1358     }
1359
1360     /* check if last animation frame is inside specified bitmap */
1361
1362     last_frame = graphic_info[i].anim_frames - 1;
1363     getGraphicSource(i, last_frame, &src_bitmap, &src_x, &src_y);
1364
1365     if (src_x < 0 || src_y < 0 ||
1366         src_x + width  > src_bitmap_width ||
1367         src_y + height > src_bitmap_height)
1368     {
1369       Error(ERR_RETURN_LINE, "-");
1370       Error(ERR_RETURN, "warning: error found in config file:");
1371       Error(ERR_RETURN, "- config file: '%s'", getImageConfigFilename());
1372       Error(ERR_RETURN, "- config token: '%s'", getTokenFromImageID(i));
1373       Error(ERR_RETURN, "- image file: '%s'", src_bitmap->source_filename);
1374       Error(ERR_RETURN,
1375             "error: last animation frame (%d) out of bounds (%d, %d) [%d, %d]",
1376             last_frame, src_x, src_y, src_bitmap_width, src_bitmap_height);
1377       Error(ERR_RETURN, "custom graphic rejected for this element/action");
1378
1379       if (i == fallback_graphic)
1380         Error(ERR_EXIT, "fatal error: no fallback graphic available");
1381
1382       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1383       Error(ERR_RETURN_LINE, "-");
1384
1385       graphic_info[i] = graphic_info[fallback_graphic];
1386     }
1387
1388 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1389     /* currently we only need a tile clip mask from the first frame */
1390     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
1391
1392     if (copy_clipmask_gc == None)
1393     {
1394       clip_gc_values.graphics_exposures = False;
1395       clip_gc_valuemask = GCGraphicsExposures;
1396       copy_clipmask_gc = XCreateGC(display, src_bitmap->clip_mask,
1397                                    clip_gc_valuemask, &clip_gc_values);
1398     }
1399
1400     graphic_info[i].clip_mask =
1401       XCreatePixmap(display, window->drawable, TILEX, TILEY, 1);
1402
1403     src_pixmap = src_bitmap->clip_mask;
1404     XCopyArea(display, src_pixmap, graphic_info[i].clip_mask,
1405               copy_clipmask_gc, src_x, src_y, TILEX, TILEY, 0, 0);
1406
1407     clip_gc_values.graphics_exposures = False;
1408     clip_gc_values.clip_mask = graphic_info[i].clip_mask;
1409     clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
1410
1411     graphic_info[i].clip_gc =
1412       XCreateGC(display, window->drawable, clip_gc_valuemask, &clip_gc_values);
1413 #endif
1414   }
1415
1416 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1417   if (copy_clipmask_gc)
1418     XFreeGC(display, copy_clipmask_gc);
1419
1420   clipmasks_initialized = TRUE;
1421 #endif
1422 }
1423
1424 static void InitElementSoundInfo()
1425 {
1426   struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
1427   int num_property_mappings = getSoundListPropertyMappingSize();
1428   int i, j, act;
1429
1430   /* set values to -1 to identify later as "uninitialized" values */
1431   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1432     for (act = 0; act < NUM_ACTIONS; act++)
1433       element_info[i].sound[act] = -1;
1434
1435   /* initialize element/sound mapping from static configuration */
1436   for (i = 0; element_to_sound[i].element > -1; i++)
1437   {
1438     int element      = element_to_sound[i].element;
1439     int action       = element_to_sound[i].action;
1440     int sound        = element_to_sound[i].sound;
1441     boolean is_class = element_to_sound[i].is_class;
1442
1443     if (action < 0)
1444       action = ACTION_DEFAULT;
1445
1446     if (!is_class)
1447       element_info[element].sound[action] = sound;
1448     else
1449       for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1450         if (strEqual(element_info[j].class_name,
1451                      element_info[element].class_name))
1452           element_info[j].sound[action] = sound;
1453   }
1454
1455   /* initialize element class/sound mapping from dynamic configuration */
1456   for (i = 0; i < num_property_mappings; i++)
1457   {
1458     int element_class = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
1459     int action        = property_mapping[i].ext1_index;
1460     int sound         = property_mapping[i].artwork_index;
1461
1462     if (element_class < 0 || element_class >= MAX_NUM_ELEMENTS)
1463       continue;
1464
1465     if (action < 0)
1466       action = ACTION_DEFAULT;
1467
1468     for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1469       if (strEqual(element_info[j].class_name,
1470                    element_info[element_class].class_name))
1471         element_info[j].sound[action] = sound;
1472   }
1473
1474   /* initialize element/sound mapping from dynamic configuration */
1475   for (i = 0; i < num_property_mappings; i++)
1476   {
1477     int element = property_mapping[i].base_index;
1478     int action  = property_mapping[i].ext1_index;
1479     int sound   = property_mapping[i].artwork_index;
1480
1481     if (element >= MAX_NUM_ELEMENTS)
1482       continue;
1483
1484     if (action < 0)
1485       action = ACTION_DEFAULT;
1486
1487     element_info[element].sound[action] = sound;
1488   }
1489
1490   /* now set all '-1' values to element specific default values */
1491   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1492   {
1493     for (act = 0; act < NUM_ACTIONS; act++)
1494     {
1495       /* generic default action sound (defined by "[default]" directive) */
1496       int default_action_sound = element_info[EL_DEFAULT].sound[act];
1497
1498       /* look for special default action sound (classic game specific) */
1499       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].sound[act] != -1)
1500         default_action_sound = element_info[EL_BD_DEFAULT].sound[act];
1501       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].sound[act] != -1)
1502         default_action_sound = element_info[EL_SP_DEFAULT].sound[act];
1503       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].sound[act] != -1)
1504         default_action_sound = element_info[EL_SB_DEFAULT].sound[act];
1505
1506       /* !!! there's no such thing as a "default action sound" !!! */
1507 #if 0
1508       /* look for element specific default sound (independent from action) */
1509       if (element_info[i].sound[ACTION_DEFAULT] != -1)
1510         default_action_sound = element_info[i].sound[ACTION_DEFAULT];
1511 #endif
1512
1513 #if 1
1514       /* !!! needed because EL_EMPTY_SPACE treated as IS_SP_ELEMENT !!! */
1515       /* !!! make this better !!! */
1516       if (i == EL_EMPTY_SPACE)
1517         default_action_sound = element_info[EL_DEFAULT].sound[act];
1518 #endif
1519
1520       /* no sound for this specific action -- use default action sound */
1521       if (element_info[i].sound[act] == -1)
1522         element_info[i].sound[act] = default_action_sound;
1523     }
1524   }
1525
1526   /* copy sound settings to some elements that are only stored in level file
1527      in native R'n'D levels, but are used by game engine in native EM levels */
1528   for (i = 0; copy_properties[i][0] != -1; i++)
1529     for (j = 1; j <= 4; j++)
1530       for (act = 0; act < NUM_ACTIONS; act++)
1531         element_info[copy_properties[i][j]].sound[act] =
1532           element_info[copy_properties[i][0]].sound[act];
1533 }
1534
1535 static void InitGameModeSoundInfo()
1536 {
1537   int i;
1538
1539   /* set values to -1 to identify later as "uninitialized" values */
1540   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1541     menu.sound[i] = -1;
1542
1543   /* initialize gamemode/sound mapping from static configuration */
1544   for (i = 0; gamemode_to_sound[i].sound > -1; i++)
1545   {
1546     int gamemode = gamemode_to_sound[i].gamemode;
1547     int sound    = gamemode_to_sound[i].sound;
1548
1549     if (gamemode < 0)
1550       gamemode = GAME_MODE_DEFAULT;
1551
1552     menu.sound[gamemode] = sound;
1553   }
1554
1555   /* now set all '-1' values to levelset specific default values */
1556   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1557     if (menu.sound[i] == -1)
1558       menu.sound[i] = menu.sound[GAME_MODE_DEFAULT];
1559
1560 #if 0
1561   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1562     if (menu.sound[i] != -1)
1563       printf("::: menu.sound[%d] == %d\n", i, menu.sound[i]);
1564 #endif
1565 }
1566
1567 static void set_sound_parameters(int sound, char **parameter_raw)
1568 {
1569   int parameter[NUM_SND_ARGS];
1570   int i;
1571
1572   /* get integer values from string parameters */
1573   for (i = 0; i < NUM_SND_ARGS; i++)
1574     parameter[i] =
1575       get_parameter_value(parameter_raw[i],
1576                           sound_config_suffix[i].token,
1577                           sound_config_suffix[i].type);
1578
1579   /* explicit loop mode setting in configuration overrides default value */
1580   if (parameter[SND_ARG_MODE_LOOP] != ARG_UNDEFINED_VALUE)
1581     sound_info[sound].loop = parameter[SND_ARG_MODE_LOOP];
1582
1583   /* sound volume to change the original volume when loading the sound file */
1584   sound_info[sound].volume = parameter[SND_ARG_VOLUME];
1585
1586   /* sound priority to give certain sounds a higher or lower priority */
1587   sound_info[sound].volume = parameter[SND_ARG_VOLUME];
1588 }
1589
1590 static void InitSoundInfo()
1591 {
1592   int *sound_effect_properties;
1593   int num_sounds = getSoundListSize();
1594   int i, j;
1595
1596   checked_free(sound_info);
1597
1598   sound_effect_properties = checked_calloc(num_sounds * sizeof(int));
1599   sound_info = checked_calloc(num_sounds * sizeof(struct SoundInfo));
1600
1601   /* initialize sound effect for all elements to "no sound" */
1602   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1603     for (j = 0; j < NUM_ACTIONS; j++)
1604       element_info[i].sound[j] = SND_UNDEFINED;
1605
1606   for (i = 0; i < num_sounds; i++)
1607   {
1608     struct FileInfo *sound = getSoundListEntry(i);
1609     int len_effect_text = strlen(sound->token);
1610
1611     sound_effect_properties[i] = ACTION_OTHER;
1612     sound_info[i].loop = FALSE;         /* default: play sound only once */
1613
1614 #if 0
1615     printf("::: sound %d: '%s'\n", i, sound->token);
1616 #endif
1617
1618     /* determine all loop sounds and identify certain sound classes */
1619
1620     for (j = 0; element_action_info[j].suffix; j++)
1621     {
1622       int len_action_text = strlen(element_action_info[j].suffix);
1623
1624       if (len_action_text < len_effect_text &&
1625           strEqual(&sound->token[len_effect_text - len_action_text],
1626                    element_action_info[j].suffix))
1627       {
1628         sound_effect_properties[i] = element_action_info[j].value;
1629         sound_info[i].loop = element_action_info[j].is_loop_sound;
1630
1631         break;
1632       }
1633     }
1634
1635     /* associate elements and some selected sound actions */
1636
1637     for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1638     {
1639       if (element_info[j].class_name)
1640       {
1641         int len_class_text = strlen(element_info[j].class_name);
1642
1643         if (len_class_text + 1 < len_effect_text &&
1644             strncmp(sound->token,
1645                     element_info[j].class_name, len_class_text) == 0 &&
1646             sound->token[len_class_text] == '.')
1647         {
1648           int sound_action_value = sound_effect_properties[i];
1649
1650           element_info[j].sound[sound_action_value] = i;
1651         }
1652       }
1653     }
1654
1655     set_sound_parameters(i, sound->parameter);
1656   }
1657
1658   free(sound_effect_properties);
1659 }
1660
1661 static void InitGameModeMusicInfo()
1662 {
1663   struct PropertyMapping *property_mapping = getMusicListPropertyMapping();
1664   int num_property_mappings = getMusicListPropertyMappingSize();
1665   int default_levelset_music = -1;
1666   int i;
1667
1668   /* set values to -1 to identify later as "uninitialized" values */
1669   for (i = 0; i < MAX_LEVELS; i++)
1670     levelset.music[i] = -1;
1671   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1672     menu.music[i] = -1;
1673
1674   /* initialize gamemode/music mapping from static configuration */
1675   for (i = 0; gamemode_to_music[i].music > -1; i++)
1676   {
1677     int gamemode = gamemode_to_music[i].gamemode;
1678     int music    = gamemode_to_music[i].music;
1679
1680 #if 0
1681     printf("::: gamemode == %d, music == %d\n", gamemode, music);
1682 #endif
1683
1684     if (gamemode < 0)
1685       gamemode = GAME_MODE_DEFAULT;
1686
1687     menu.music[gamemode] = music;
1688   }
1689
1690   /* initialize gamemode/music mapping from dynamic configuration */
1691   for (i = 0; i < num_property_mappings; i++)
1692   {
1693     int prefix   = property_mapping[i].base_index;
1694     int gamemode = property_mapping[i].ext1_index;
1695     int level    = property_mapping[i].ext2_index;
1696     int music    = property_mapping[i].artwork_index;
1697
1698 #if 0
1699     printf("::: prefix == %d, gamemode == %d, level == %d, music == %d\n",
1700            prefix, gamemode, level, music);
1701 #endif
1702
1703     if (prefix < 0 || prefix >= NUM_MUSIC_PREFIXES)
1704       continue;
1705
1706     if (gamemode < 0)
1707       gamemode = GAME_MODE_DEFAULT;
1708
1709     /* level specific music only allowed for in-game music */
1710     if (level != -1 && gamemode == GAME_MODE_DEFAULT)
1711       gamemode = GAME_MODE_PLAYING;
1712
1713     if (level == -1)
1714     {
1715       level = 0;
1716       default_levelset_music = music;
1717     }
1718
1719     if (gamemode == GAME_MODE_PLAYING || gamemode == GAME_MODE_DEFAULT)
1720       levelset.music[level] = music;
1721     if (gamemode != GAME_MODE_PLAYING)
1722       menu.music[gamemode] = music;
1723   }
1724
1725   /* now set all '-1' values to menu specific default values */
1726   /* (undefined values of "levelset.music[]" might stay at "-1" to
1727      allow dynamic selection of music files from music directory!) */
1728   for (i = 0; i < MAX_LEVELS; i++)
1729     if (levelset.music[i] == -1)
1730       levelset.music[i] = default_levelset_music;
1731   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1732     if (menu.music[i] == -1)
1733       menu.music[i] = menu.music[GAME_MODE_DEFAULT];
1734
1735 #if 0
1736   for (i = 0; i < MAX_LEVELS; i++)
1737     if (levelset.music[i] != -1)
1738       printf("::: levelset.music[%d] == %d\n", i, levelset.music[i]);
1739   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1740     if (menu.music[i] != -1)
1741       printf("::: menu.music[%d] == %d\n", i, menu.music[i]);
1742 #endif
1743 }
1744
1745 static void set_music_parameters(int music, char **parameter_raw)
1746 {
1747   int parameter[NUM_MUS_ARGS];
1748   int i;
1749
1750   /* get integer values from string parameters */
1751   for (i = 0; i < NUM_MUS_ARGS; i++)
1752     parameter[i] =
1753       get_parameter_value(parameter_raw[i],
1754                           music_config_suffix[i].token,
1755                           music_config_suffix[i].type);
1756
1757   /* explicit loop mode setting in configuration overrides default value */
1758   if (parameter[MUS_ARG_MODE_LOOP] != ARG_UNDEFINED_VALUE)
1759     music_info[music].loop = parameter[MUS_ARG_MODE_LOOP];
1760 }
1761
1762 static void InitMusicInfo()
1763 {
1764   int num_music = getMusicListSize();
1765   int i, j;
1766
1767   checked_free(music_info);
1768
1769   music_info = checked_calloc(num_music * sizeof(struct MusicInfo));
1770
1771   for (i = 0; i < num_music; i++)
1772   {
1773     struct FileInfo *music = getMusicListEntry(i);
1774     int len_music_text = strlen(music->token);
1775
1776     music_info[i].loop = TRUE;          /* default: play music in loop mode */
1777
1778     /* determine all loop music */
1779
1780     for (j = 0; music_prefix_info[j].prefix; j++)
1781     {
1782       int len_prefix_text = strlen(music_prefix_info[j].prefix);
1783
1784       if (len_prefix_text < len_music_text &&
1785           strncmp(music->token,
1786                   music_prefix_info[j].prefix, len_prefix_text) == 0)
1787       {
1788         music_info[i].loop = music_prefix_info[j].is_loop_music;
1789
1790         break;
1791       }
1792     }
1793
1794     set_music_parameters(i, music->parameter);
1795   }
1796 }
1797
1798 static void ReinitializeGraphics()
1799 {
1800   InitGraphicInfo();                    /* graphic properties mapping */
1801   InitElementGraphicInfo();             /* element game graphic mapping */
1802   InitElementSpecialGraphicInfo();      /* element special graphic mapping */
1803
1804   InitElementSmallImages();             /* scale elements to all needed sizes */
1805   InitScaledImages();                   /* scale all other images, if needed */
1806   InitFontGraphicInfo();                /* initialize text drawing functions */
1807
1808   InitGraphicInfo_EM();                 /* graphic mapping for EM engine */
1809
1810   SetMainBackgroundImage(IMG_BACKGROUND);
1811   SetDoorBackgroundImage(IMG_BACKGROUND_DOOR);
1812
1813   InitGadgets();
1814   InitToons();
1815 }
1816
1817 static void ReinitializeSounds()
1818 {
1819   InitSoundInfo();              /* sound properties mapping */
1820   InitElementSoundInfo();       /* element game sound mapping */
1821   InitGameModeSoundInfo();      /* game mode sound mapping */
1822
1823   InitPlayLevelSound();         /* internal game sound settings */
1824 }
1825
1826 static void ReinitializeMusic()
1827 {
1828   InitMusicInfo();              /* music properties mapping */
1829   InitGameModeMusicInfo();      /* game mode music mapping */
1830 }
1831
1832 static int get_special_property_bit(int element, int property_bit_nr)
1833 {
1834   struct PropertyBitInfo
1835   {
1836     int element;
1837     int bit_nr;
1838   };
1839
1840   static struct PropertyBitInfo pb_can_move_into_acid[] =
1841   {
1842     /* the player may be able fall into acid when gravity is activated */
1843     { EL_PLAYER_1,              0       },
1844     { EL_PLAYER_2,              0       },
1845     { EL_PLAYER_3,              0       },
1846     { EL_PLAYER_4,              0       },
1847     { EL_SP_MURPHY,             0       },
1848     { EL_SOKOBAN_FIELD_PLAYER,  0       },
1849
1850     /* all elements that can move may be able to also move into acid */
1851     { EL_BUG,                   1       },
1852     { EL_BUG_LEFT,              1       },
1853     { EL_BUG_RIGHT,             1       },
1854     { EL_BUG_UP,                1       },
1855     { EL_BUG_DOWN,              1       },
1856     { EL_SPACESHIP,             2       },
1857     { EL_SPACESHIP_LEFT,        2       },
1858     { EL_SPACESHIP_RIGHT,       2       },
1859     { EL_SPACESHIP_UP,          2       },
1860     { EL_SPACESHIP_DOWN,        2       },
1861     { EL_BD_BUTTERFLY,          3       },
1862     { EL_BD_BUTTERFLY_LEFT,     3       },
1863     { EL_BD_BUTTERFLY_RIGHT,    3       },
1864     { EL_BD_BUTTERFLY_UP,       3       },
1865     { EL_BD_BUTTERFLY_DOWN,     3       },
1866     { EL_BD_FIREFLY,            4       },
1867     { EL_BD_FIREFLY_LEFT,       4       },
1868     { EL_BD_FIREFLY_RIGHT,      4       },
1869     { EL_BD_FIREFLY_UP,         4       },
1870     { EL_BD_FIREFLY_DOWN,       4       },
1871     { EL_YAMYAM,                5       },
1872     { EL_YAMYAM_LEFT,           5       },
1873     { EL_YAMYAM_RIGHT,          5       },
1874     { EL_YAMYAM_UP,             5       },
1875     { EL_YAMYAM_DOWN,           5       },
1876     { EL_DARK_YAMYAM,           6       },
1877     { EL_ROBOT,                 7       },
1878     { EL_PACMAN,                8       },
1879     { EL_PACMAN_LEFT,           8       },
1880     { EL_PACMAN_RIGHT,          8       },
1881     { EL_PACMAN_UP,             8       },
1882     { EL_PACMAN_DOWN,           8       },
1883     { EL_MOLE,                  9       },
1884     { EL_MOLE_LEFT,             9       },
1885     { EL_MOLE_RIGHT,            9       },
1886     { EL_MOLE_UP,               9       },
1887     { EL_MOLE_DOWN,             9       },
1888     { EL_PENGUIN,               10      },
1889     { EL_PIG,                   11      },
1890     { EL_DRAGON,                12      },
1891     { EL_SATELLITE,             13      },
1892     { EL_SP_SNIKSNAK,           14      },
1893     { EL_SP_ELECTRON,           15      },
1894     { EL_BALLOON,               16      },
1895     { EL_SPRING,                17      },
1896     { EL_EMC_ANDROID,           18      },
1897
1898     { -1,                       -1      },
1899   };
1900
1901   static struct PropertyBitInfo pb_dont_collide_with[] =
1902   {
1903     { EL_SP_SNIKSNAK,           0       },
1904     { EL_SP_ELECTRON,           1       },
1905
1906     { -1,                       -1      },
1907   };
1908
1909   static struct
1910   {
1911     int bit_nr;
1912     struct PropertyBitInfo *pb_info;
1913   } pb_definition[] =
1914   {
1915     { EP_CAN_MOVE_INTO_ACID,    pb_can_move_into_acid   },
1916     { EP_DONT_COLLIDE_WITH,     pb_dont_collide_with    },
1917
1918     { -1,                       NULL                    },
1919   };
1920
1921   struct PropertyBitInfo *pb_info = NULL;
1922   int i;
1923
1924   for (i = 0; pb_definition[i].bit_nr != -1; i++)
1925     if (pb_definition[i].bit_nr == property_bit_nr)
1926       pb_info = pb_definition[i].pb_info;
1927
1928   if (pb_info == NULL)
1929     return -1;
1930
1931   for (i = 0; pb_info[i].element != -1; i++)
1932     if (pb_info[i].element == element)
1933       return pb_info[i].bit_nr;
1934
1935   return -1;
1936 }
1937
1938 void setBitfieldProperty(int *bitfield, int property_bit_nr, int element,
1939                          boolean property_value)
1940 {
1941   int bit_nr = get_special_property_bit(element, property_bit_nr);
1942
1943   if (bit_nr > -1)
1944   {
1945     if (property_value)
1946       *bitfield |=  (1 << bit_nr);
1947     else
1948       *bitfield &= ~(1 << bit_nr);
1949   }
1950 }
1951
1952 boolean getBitfieldProperty(int *bitfield, int property_bit_nr, int element)
1953 {
1954   int bit_nr = get_special_property_bit(element, property_bit_nr);
1955
1956   if (bit_nr > -1)
1957     return ((*bitfield & (1 << bit_nr)) != 0);
1958
1959   return FALSE;
1960 }
1961
1962 static void resolve_group_element(int group_element, int recursion_depth)
1963 {
1964   static int group_nr;
1965   static struct ElementGroupInfo *group;
1966   struct ElementGroupInfo *actual_group = element_info[group_element].group;
1967   int i;
1968
1969   if (actual_group == NULL)                     /* not yet initialized */
1970     return;
1971
1972   if (recursion_depth > NUM_GROUP_ELEMENTS)     /* recursion too deep */
1973   {
1974     Error(ERR_WARN, "recursion too deep when resolving group element %d",
1975           group_element - EL_GROUP_START + 1);
1976
1977     /* replace element which caused too deep recursion by question mark */
1978     group->element_resolved[group->num_elements_resolved++] = EL_UNKNOWN;
1979
1980     return;
1981   }
1982
1983   if (recursion_depth == 0)                     /* initialization */
1984   {
1985     group = actual_group;
1986     group_nr = group_element - EL_GROUP_START;
1987
1988     group->num_elements_resolved = 0;
1989     group->choice_pos = 0;
1990   }
1991
1992   for (i = 0; i < actual_group->num_elements; i++)
1993   {
1994     int element = actual_group->element[i];
1995
1996     if (group->num_elements_resolved == NUM_FILE_ELEMENTS)
1997       break;
1998
1999     if (IS_GROUP_ELEMENT(element))
2000       resolve_group_element(element, recursion_depth + 1);
2001     else
2002     {
2003       group->element_resolved[group->num_elements_resolved++] = element;
2004       element_info[element].in_group[group_nr] = TRUE;
2005     }
2006   }
2007 }
2008
2009 void InitElementPropertiesStatic()
2010 {
2011   static int ep_diggable[] =
2012   {
2013     EL_SAND,
2014     EL_SP_BASE,
2015     EL_SP_BUGGY_BASE,
2016     EL_SP_BUGGY_BASE_ACTIVATING,
2017     EL_TRAP,
2018     EL_INVISIBLE_SAND,
2019     EL_INVISIBLE_SAND_ACTIVE,
2020     EL_EMC_GRASS,
2021
2022     /* !!! currently not diggable, but handled by 'ep_dont_run_into' !!! */
2023     /* (if amoeba can grow into anything diggable, maybe keep these out) */
2024 #if 0
2025     EL_LANDMINE,
2026     EL_TRAP_ACTIVE,
2027     EL_SP_BUGGY_BASE_ACTIVE,
2028     EL_EMC_PLANT,
2029 #endif
2030
2031     -1
2032   };
2033
2034   static int ep_collectible_only[] =
2035   {
2036     EL_BD_DIAMOND,
2037     EL_EMERALD,
2038     EL_DIAMOND,
2039     EL_EMERALD_YELLOW,
2040     EL_EMERALD_RED,
2041     EL_EMERALD_PURPLE,
2042     EL_KEY_1,
2043     EL_KEY_2,
2044     EL_KEY_3,
2045     EL_KEY_4,
2046     EL_EM_KEY_1,
2047     EL_EM_KEY_2,
2048     EL_EM_KEY_3,
2049     EL_EM_KEY_4,
2050     EL_EMC_KEY_5,
2051     EL_EMC_KEY_6,
2052     EL_EMC_KEY_7,
2053     EL_EMC_KEY_8,
2054     EL_DYNAMITE,
2055     EL_EM_DYNAMITE,
2056     EL_DYNABOMB_INCREASE_NUMBER,
2057     EL_DYNABOMB_INCREASE_SIZE,
2058     EL_DYNABOMB_INCREASE_POWER,
2059     EL_SP_INFOTRON,
2060     EL_SP_DISK_RED,
2061     EL_PEARL,
2062     EL_CRYSTAL,
2063     EL_KEY_WHITE,
2064     EL_SHIELD_NORMAL,
2065     EL_SHIELD_DEADLY,
2066     EL_EXTRA_TIME,
2067     EL_ENVELOPE_1,
2068     EL_ENVELOPE_2,
2069     EL_ENVELOPE_3,
2070     EL_ENVELOPE_4,
2071     EL_SPEED_PILL,
2072     EL_EMC_LENSES,
2073     EL_EMC_MAGNIFIER,
2074
2075     -1
2076   };
2077
2078   static int ep_dont_run_into[] =
2079   {
2080     /* same elements as in 'ep_dont_touch' */
2081     EL_BUG,
2082     EL_SPACESHIP,
2083     EL_BD_BUTTERFLY,
2084     EL_BD_FIREFLY,
2085
2086     /* same elements as in 'ep_dont_collide_with' */
2087     EL_YAMYAM,
2088     EL_DARK_YAMYAM,
2089     EL_ROBOT,
2090     EL_PACMAN,
2091     EL_SP_SNIKSNAK,
2092     EL_SP_ELECTRON,
2093
2094     /* new elements */
2095     EL_AMOEBA_DROP,
2096     EL_ACID,
2097
2098     /* !!! maybe this should better be handled by 'ep_diggable' !!! */
2099 #if 1
2100     EL_LANDMINE,
2101     EL_TRAP_ACTIVE,
2102     EL_SP_BUGGY_BASE_ACTIVE,
2103     EL_EMC_PLANT,
2104 #endif
2105
2106     -1
2107   };
2108
2109   static int ep_dont_collide_with[] =
2110   {
2111     /* same elements as in 'ep_dont_touch' */
2112     EL_BUG,
2113     EL_SPACESHIP,
2114     EL_BD_BUTTERFLY,
2115     EL_BD_FIREFLY,
2116
2117     /* new elements */
2118     EL_YAMYAM,
2119     EL_DARK_YAMYAM,
2120     EL_ROBOT,
2121     EL_PACMAN,
2122     EL_SP_SNIKSNAK,
2123     EL_SP_ELECTRON,
2124
2125     -1
2126   };
2127
2128   static int ep_dont_touch[] =
2129   {
2130     EL_BUG,
2131     EL_SPACESHIP,
2132     EL_BD_BUTTERFLY,
2133     EL_BD_FIREFLY,
2134
2135     -1
2136   };
2137
2138   static int ep_indestructible[] =
2139   {
2140     EL_STEELWALL,
2141     EL_ACID,
2142     EL_ACID_POOL_TOPLEFT,
2143     EL_ACID_POOL_TOPRIGHT,
2144     EL_ACID_POOL_BOTTOMLEFT,
2145     EL_ACID_POOL_BOTTOM,
2146     EL_ACID_POOL_BOTTOMRIGHT,
2147     EL_SP_HARDWARE_GRAY,
2148     EL_SP_HARDWARE_GREEN,
2149     EL_SP_HARDWARE_BLUE,
2150     EL_SP_HARDWARE_RED,
2151     EL_SP_HARDWARE_YELLOW,
2152     EL_SP_HARDWARE_BASE_1,
2153     EL_SP_HARDWARE_BASE_2,
2154     EL_SP_HARDWARE_BASE_3,
2155     EL_SP_HARDWARE_BASE_4,
2156     EL_SP_HARDWARE_BASE_5,
2157     EL_SP_HARDWARE_BASE_6,
2158     EL_INVISIBLE_STEELWALL,
2159     EL_INVISIBLE_STEELWALL_ACTIVE,
2160     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2161     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2162     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2163     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2164     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2165     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2166     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2167     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2168     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2169     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2170     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2171     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2172     EL_LIGHT_SWITCH,
2173     EL_LIGHT_SWITCH_ACTIVE,
2174     EL_SIGN_EXCLAMATION,
2175     EL_SIGN_RADIOACTIVITY,
2176     EL_SIGN_STOP,
2177     EL_SIGN_WHEELCHAIR,
2178     EL_SIGN_PARKING,
2179     EL_SIGN_ONEWAY,
2180     EL_SIGN_HEART,
2181     EL_SIGN_TRIANGLE,
2182     EL_SIGN_ROUND,
2183     EL_SIGN_EXIT,
2184     EL_SIGN_YINYANG,
2185     EL_SIGN_OTHER,
2186     EL_STEELWALL_SLIPPERY,
2187     EL_EMC_STEELWALL_1,
2188     EL_EMC_STEELWALL_2,
2189     EL_EMC_STEELWALL_3,
2190     EL_EMC_STEELWALL_4,
2191     EL_CRYSTAL,
2192     EL_GATE_1,
2193     EL_GATE_2,
2194     EL_GATE_3,
2195     EL_GATE_4,
2196     EL_GATE_1_GRAY,
2197     EL_GATE_2_GRAY,
2198     EL_GATE_3_GRAY,
2199     EL_GATE_4_GRAY,
2200     EL_GATE_1_GRAY_ACTIVE,
2201     EL_GATE_2_GRAY_ACTIVE,
2202     EL_GATE_3_GRAY_ACTIVE,
2203     EL_GATE_4_GRAY_ACTIVE,
2204     EL_EM_GATE_1,
2205     EL_EM_GATE_2,
2206     EL_EM_GATE_3,
2207     EL_EM_GATE_4,
2208     EL_EM_GATE_1_GRAY,
2209     EL_EM_GATE_2_GRAY,
2210     EL_EM_GATE_3_GRAY,
2211     EL_EM_GATE_4_GRAY,
2212     EL_EM_GATE_1_GRAY_ACTIVE,
2213     EL_EM_GATE_2_GRAY_ACTIVE,
2214     EL_EM_GATE_3_GRAY_ACTIVE,
2215     EL_EM_GATE_4_GRAY_ACTIVE,
2216     EL_EMC_GATE_5,
2217     EL_EMC_GATE_6,
2218     EL_EMC_GATE_7,
2219     EL_EMC_GATE_8,
2220     EL_EMC_GATE_5_GRAY,
2221     EL_EMC_GATE_6_GRAY,
2222     EL_EMC_GATE_7_GRAY,
2223     EL_EMC_GATE_8_GRAY,
2224     EL_EMC_GATE_5_GRAY_ACTIVE,
2225     EL_EMC_GATE_6_GRAY_ACTIVE,
2226     EL_EMC_GATE_7_GRAY_ACTIVE,
2227     EL_EMC_GATE_8_GRAY_ACTIVE,
2228     EL_SWITCHGATE_OPEN,
2229     EL_SWITCHGATE_OPENING,
2230     EL_SWITCHGATE_CLOSED,
2231     EL_SWITCHGATE_CLOSING,
2232 #if 0
2233     EL_SWITCHGATE_SWITCH_UP,
2234     EL_SWITCHGATE_SWITCH_DOWN,
2235 #endif
2236     EL_TIMEGATE_OPEN,
2237     EL_TIMEGATE_OPENING,
2238     EL_TIMEGATE_CLOSED,
2239     EL_TIMEGATE_CLOSING,
2240 #if 0
2241     EL_TIMEGATE_SWITCH,
2242     EL_TIMEGATE_SWITCH_ACTIVE,
2243 #endif
2244     EL_TUBE_ANY,
2245     EL_TUBE_VERTICAL,
2246     EL_TUBE_HORIZONTAL,
2247     EL_TUBE_VERTICAL_LEFT,
2248     EL_TUBE_VERTICAL_RIGHT,
2249     EL_TUBE_HORIZONTAL_UP,
2250     EL_TUBE_HORIZONTAL_DOWN,
2251     EL_TUBE_LEFT_UP,
2252     EL_TUBE_LEFT_DOWN,
2253     EL_TUBE_RIGHT_UP,
2254     EL_TUBE_RIGHT_DOWN,
2255
2256     -1
2257   };
2258
2259   static int ep_slippery[] =
2260   {
2261     EL_WALL_SLIPPERY,
2262     EL_BD_WALL,
2263     EL_ROCK,
2264     EL_BD_ROCK,
2265     EL_EMERALD,
2266     EL_BD_DIAMOND,
2267     EL_EMERALD_YELLOW,
2268     EL_EMERALD_RED,
2269     EL_EMERALD_PURPLE,
2270     EL_DIAMOND,
2271     EL_BOMB,
2272     EL_NUT,
2273     EL_ROBOT_WHEEL_ACTIVE,
2274     EL_ROBOT_WHEEL,
2275     EL_TIME_ORB_FULL,
2276     EL_TIME_ORB_EMPTY,
2277     EL_LAMP_ACTIVE,
2278     EL_LAMP,
2279     EL_ACID_POOL_TOPLEFT,
2280     EL_ACID_POOL_TOPRIGHT,
2281     EL_SATELLITE,
2282     EL_SP_ZONK,
2283     EL_SP_INFOTRON,
2284     EL_SP_CHIP_SINGLE,
2285     EL_SP_CHIP_LEFT,
2286     EL_SP_CHIP_RIGHT,
2287     EL_SP_CHIP_TOP,
2288     EL_SP_CHIP_BOTTOM,
2289     EL_SPEED_PILL,
2290     EL_STEELWALL_SLIPPERY,
2291     EL_PEARL,
2292     EL_CRYSTAL,
2293     EL_EMC_WALL_SLIPPERY_1,
2294     EL_EMC_WALL_SLIPPERY_2,
2295     EL_EMC_WALL_SLIPPERY_3,
2296     EL_EMC_WALL_SLIPPERY_4,
2297     EL_EMC_MAGIC_BALL,
2298     EL_EMC_MAGIC_BALL_ACTIVE,
2299
2300     -1
2301   };
2302
2303   static int ep_can_change[] =
2304   {
2305     -1
2306   };
2307
2308   static int ep_can_move[] =
2309   {
2310     /* same elements as in 'pb_can_move_into_acid' */
2311     EL_BUG,
2312     EL_SPACESHIP,
2313     EL_BD_BUTTERFLY,
2314     EL_BD_FIREFLY,
2315     EL_YAMYAM,
2316     EL_DARK_YAMYAM,
2317     EL_ROBOT,
2318     EL_PACMAN,
2319     EL_MOLE,
2320     EL_PENGUIN,
2321     EL_PIG,
2322     EL_DRAGON,
2323     EL_SATELLITE,
2324     EL_SP_SNIKSNAK,
2325     EL_SP_ELECTRON,
2326     EL_BALLOON,
2327     EL_SPRING,
2328     EL_EMC_ANDROID,
2329
2330     -1
2331   };
2332
2333   static int ep_can_fall[] =
2334   {
2335     EL_ROCK,
2336     EL_BD_ROCK,
2337     EL_EMERALD,
2338     EL_BD_DIAMOND,
2339     EL_EMERALD_YELLOW,
2340     EL_EMERALD_RED,
2341     EL_EMERALD_PURPLE,
2342     EL_DIAMOND,
2343     EL_BOMB,
2344     EL_NUT,
2345     EL_AMOEBA_DROP,
2346     EL_QUICKSAND_FULL,
2347     EL_MAGIC_WALL_FULL,
2348     EL_BD_MAGIC_WALL_FULL,
2349     EL_TIME_ORB_FULL,
2350     EL_TIME_ORB_EMPTY,
2351     EL_SP_ZONK,
2352     EL_SP_INFOTRON,
2353     EL_SP_DISK_ORANGE,
2354     EL_PEARL,
2355     EL_CRYSTAL,
2356     EL_SPRING,
2357     EL_DX_SUPABOMB,
2358
2359     -1
2360   };
2361
2362   static int ep_can_smash_player[] =
2363   {
2364     EL_ROCK,
2365     EL_BD_ROCK,
2366     EL_EMERALD,
2367     EL_BD_DIAMOND,
2368     EL_EMERALD_YELLOW,
2369     EL_EMERALD_RED,
2370     EL_EMERALD_PURPLE,
2371     EL_DIAMOND,
2372     EL_BOMB,
2373     EL_NUT,
2374     EL_AMOEBA_DROP,
2375     EL_TIME_ORB_FULL,
2376     EL_TIME_ORB_EMPTY,
2377     EL_SP_ZONK,
2378     EL_SP_INFOTRON,
2379     EL_SP_DISK_ORANGE,
2380     EL_PEARL,
2381     EL_CRYSTAL,
2382     EL_SPRING,
2383     EL_DX_SUPABOMB,
2384
2385     -1
2386   };
2387
2388   static int ep_can_smash_enemies[] =
2389   {
2390     EL_ROCK,
2391     EL_BD_ROCK,
2392     EL_SP_ZONK,
2393
2394     -1
2395   };
2396
2397   static int ep_can_smash_everything[] =
2398   {
2399     EL_ROCK,
2400     EL_BD_ROCK,
2401     EL_SP_ZONK,
2402
2403     -1
2404   };
2405
2406   static int ep_explodes_by_fire[] =
2407   {
2408     /* same elements as in 'ep_explodes_impact' */
2409     EL_BOMB,
2410     EL_SP_DISK_ORANGE,
2411     EL_DX_SUPABOMB,
2412
2413     /* same elements as in 'ep_explodes_smashed' */
2414     EL_SATELLITE,
2415     EL_PIG,
2416     EL_DRAGON,
2417     EL_MOLE,
2418
2419     /* new elements */
2420     EL_DYNAMITE,
2421     EL_DYNAMITE_ACTIVE,
2422     EL_EM_DYNAMITE,
2423     EL_EM_DYNAMITE_ACTIVE,
2424     EL_DYNABOMB_PLAYER_1_ACTIVE,
2425     EL_DYNABOMB_PLAYER_2_ACTIVE,
2426     EL_DYNABOMB_PLAYER_3_ACTIVE,
2427     EL_DYNABOMB_PLAYER_4_ACTIVE,
2428     EL_DYNABOMB_INCREASE_NUMBER,
2429     EL_DYNABOMB_INCREASE_SIZE,
2430     EL_DYNABOMB_INCREASE_POWER,
2431     EL_SP_DISK_RED_ACTIVE,
2432     EL_BUG,
2433     EL_PENGUIN,
2434     EL_SP_DISK_RED,
2435     EL_SP_DISK_YELLOW,
2436     EL_SP_SNIKSNAK,
2437     EL_SP_ELECTRON,
2438 #if 0
2439     EL_BLACK_ORB,
2440 #endif
2441
2442     -1
2443   };
2444
2445   static int ep_explodes_smashed[] =
2446   {
2447     /* same elements as in 'ep_explodes_impact' */
2448     EL_BOMB,
2449     EL_SP_DISK_ORANGE,
2450     EL_DX_SUPABOMB,
2451
2452     /* new elements */
2453     EL_SATELLITE,
2454     EL_PIG,
2455     EL_DRAGON,
2456     EL_MOLE,
2457
2458     -1
2459   };
2460
2461   static int ep_explodes_impact[] =
2462   {
2463     EL_BOMB,
2464     EL_SP_DISK_ORANGE,
2465     EL_DX_SUPABOMB,
2466
2467     -1
2468   };
2469
2470   static int ep_walkable_over[] =
2471   {
2472     EL_EMPTY_SPACE,
2473     EL_SP_EMPTY_SPACE,
2474     EL_SOKOBAN_FIELD_EMPTY,
2475     EL_EXIT_OPEN,
2476     EL_SP_EXIT_OPEN,
2477     EL_SP_EXIT_OPENING,
2478     EL_GATE_1,
2479     EL_GATE_2,
2480     EL_GATE_3,
2481     EL_GATE_4,
2482     EL_GATE_1_GRAY,
2483     EL_GATE_2_GRAY,
2484     EL_GATE_3_GRAY,
2485     EL_GATE_4_GRAY,
2486     EL_GATE_1_GRAY_ACTIVE,
2487     EL_GATE_2_GRAY_ACTIVE,
2488     EL_GATE_3_GRAY_ACTIVE,
2489     EL_GATE_4_GRAY_ACTIVE,
2490     EL_PENGUIN,
2491     EL_PIG,
2492     EL_DRAGON,
2493
2494     -1
2495   };
2496
2497   static int ep_walkable_inside[] =
2498   {
2499     EL_TUBE_ANY,
2500     EL_TUBE_VERTICAL,
2501     EL_TUBE_HORIZONTAL,
2502     EL_TUBE_VERTICAL_LEFT,
2503     EL_TUBE_VERTICAL_RIGHT,
2504     EL_TUBE_HORIZONTAL_UP,
2505     EL_TUBE_HORIZONTAL_DOWN,
2506     EL_TUBE_LEFT_UP,
2507     EL_TUBE_LEFT_DOWN,
2508     EL_TUBE_RIGHT_UP,
2509     EL_TUBE_RIGHT_DOWN,
2510
2511     -1
2512   };
2513
2514   static int ep_walkable_under[] =
2515   {
2516     -1
2517   };
2518
2519   static int ep_passable_over[] =
2520   {
2521     EL_EM_GATE_1,
2522     EL_EM_GATE_2,
2523     EL_EM_GATE_3,
2524     EL_EM_GATE_4,
2525     EL_EM_GATE_1_GRAY,
2526     EL_EM_GATE_2_GRAY,
2527     EL_EM_GATE_3_GRAY,
2528     EL_EM_GATE_4_GRAY,
2529     EL_EM_GATE_1_GRAY_ACTIVE,
2530     EL_EM_GATE_2_GRAY_ACTIVE,
2531     EL_EM_GATE_3_GRAY_ACTIVE,
2532     EL_EM_GATE_4_GRAY_ACTIVE,
2533     EL_EMC_GATE_5,
2534     EL_EMC_GATE_6,
2535     EL_EMC_GATE_7,
2536     EL_EMC_GATE_8,
2537     EL_EMC_GATE_5_GRAY,
2538     EL_EMC_GATE_6_GRAY,
2539     EL_EMC_GATE_7_GRAY,
2540     EL_EMC_GATE_8_GRAY,
2541     EL_EMC_GATE_5_GRAY_ACTIVE,
2542     EL_EMC_GATE_6_GRAY_ACTIVE,
2543     EL_EMC_GATE_7_GRAY_ACTIVE,
2544     EL_EMC_GATE_8_GRAY_ACTIVE,
2545     EL_SWITCHGATE_OPEN,
2546     EL_TIMEGATE_OPEN,
2547
2548     -1
2549   };
2550
2551   static int ep_passable_inside[] =
2552   {
2553     EL_SP_PORT_LEFT,
2554     EL_SP_PORT_RIGHT,
2555     EL_SP_PORT_UP,
2556     EL_SP_PORT_DOWN,
2557     EL_SP_PORT_HORIZONTAL,
2558     EL_SP_PORT_VERTICAL,
2559     EL_SP_PORT_ANY,
2560     EL_SP_GRAVITY_PORT_LEFT,
2561     EL_SP_GRAVITY_PORT_RIGHT,
2562     EL_SP_GRAVITY_PORT_UP,
2563     EL_SP_GRAVITY_PORT_DOWN,
2564     EL_SP_GRAVITY_ON_PORT_LEFT,
2565     EL_SP_GRAVITY_ON_PORT_RIGHT,
2566     EL_SP_GRAVITY_ON_PORT_UP,
2567     EL_SP_GRAVITY_ON_PORT_DOWN,
2568     EL_SP_GRAVITY_OFF_PORT_LEFT,
2569     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2570     EL_SP_GRAVITY_OFF_PORT_UP,
2571     EL_SP_GRAVITY_OFF_PORT_DOWN,
2572
2573     -1
2574   };
2575
2576   static int ep_passable_under[] =
2577   {
2578     -1
2579   };
2580
2581   static int ep_droppable[] =
2582   {
2583     -1
2584   };
2585
2586   static int ep_explodes_1x1_old[] =
2587   {
2588     -1
2589   };
2590
2591   static int ep_pushable[] =
2592   {
2593     EL_ROCK,
2594     EL_BOMB,
2595     EL_DX_SUPABOMB,
2596     EL_NUT,
2597     EL_TIME_ORB_EMPTY,
2598     EL_SP_ZONK,
2599     EL_SP_DISK_ORANGE,
2600     EL_SPRING,
2601     EL_BD_ROCK,
2602     EL_SOKOBAN_OBJECT,
2603     EL_SOKOBAN_FIELD_FULL,
2604     EL_SATELLITE,
2605     EL_SP_DISK_YELLOW,
2606     EL_BALLOON,
2607     EL_EMC_ANDROID,
2608
2609     -1
2610   };
2611
2612   static int ep_explodes_cross_old[] =
2613   {
2614     -1
2615   };
2616
2617   static int ep_protected[] =
2618   {
2619     /* same elements as in 'ep_walkable_inside' */
2620     EL_TUBE_ANY,
2621     EL_TUBE_VERTICAL,
2622     EL_TUBE_HORIZONTAL,
2623     EL_TUBE_VERTICAL_LEFT,
2624     EL_TUBE_VERTICAL_RIGHT,
2625     EL_TUBE_HORIZONTAL_UP,
2626     EL_TUBE_HORIZONTAL_DOWN,
2627     EL_TUBE_LEFT_UP,
2628     EL_TUBE_LEFT_DOWN,
2629     EL_TUBE_RIGHT_UP,
2630     EL_TUBE_RIGHT_DOWN,
2631
2632     /* same elements as in 'ep_passable_over' */
2633     EL_EM_GATE_1,
2634     EL_EM_GATE_2,
2635     EL_EM_GATE_3,
2636     EL_EM_GATE_4,
2637     EL_EM_GATE_1_GRAY,
2638     EL_EM_GATE_2_GRAY,
2639     EL_EM_GATE_3_GRAY,
2640     EL_EM_GATE_4_GRAY,
2641     EL_EM_GATE_1_GRAY_ACTIVE,
2642     EL_EM_GATE_2_GRAY_ACTIVE,
2643     EL_EM_GATE_3_GRAY_ACTIVE,
2644     EL_EM_GATE_4_GRAY_ACTIVE,
2645     EL_EMC_GATE_5,
2646     EL_EMC_GATE_6,
2647     EL_EMC_GATE_7,
2648     EL_EMC_GATE_8,
2649     EL_EMC_GATE_5_GRAY,
2650     EL_EMC_GATE_6_GRAY,
2651     EL_EMC_GATE_7_GRAY,
2652     EL_EMC_GATE_8_GRAY,
2653     EL_EMC_GATE_5_GRAY_ACTIVE,
2654     EL_EMC_GATE_6_GRAY_ACTIVE,
2655     EL_EMC_GATE_7_GRAY_ACTIVE,
2656     EL_EMC_GATE_8_GRAY_ACTIVE,
2657     EL_SWITCHGATE_OPEN,
2658     EL_TIMEGATE_OPEN,
2659
2660     /* same elements as in 'ep_passable_inside' */
2661     EL_SP_PORT_LEFT,
2662     EL_SP_PORT_RIGHT,
2663     EL_SP_PORT_UP,
2664     EL_SP_PORT_DOWN,
2665     EL_SP_PORT_HORIZONTAL,
2666     EL_SP_PORT_VERTICAL,
2667     EL_SP_PORT_ANY,
2668     EL_SP_GRAVITY_PORT_LEFT,
2669     EL_SP_GRAVITY_PORT_RIGHT,
2670     EL_SP_GRAVITY_PORT_UP,
2671     EL_SP_GRAVITY_PORT_DOWN,
2672     EL_SP_GRAVITY_ON_PORT_LEFT,
2673     EL_SP_GRAVITY_ON_PORT_RIGHT,
2674     EL_SP_GRAVITY_ON_PORT_UP,
2675     EL_SP_GRAVITY_ON_PORT_DOWN,
2676     EL_SP_GRAVITY_OFF_PORT_LEFT,
2677     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2678     EL_SP_GRAVITY_OFF_PORT_UP,
2679     EL_SP_GRAVITY_OFF_PORT_DOWN,
2680
2681     -1
2682   };
2683
2684   static int ep_throwable[] =
2685   {
2686     -1
2687   };
2688
2689   static int ep_can_explode[] =
2690   {
2691     /* same elements as in 'ep_explodes_impact' */
2692     EL_BOMB,
2693     EL_SP_DISK_ORANGE,
2694     EL_DX_SUPABOMB,
2695
2696     /* same elements as in 'ep_explodes_smashed' */
2697     EL_SATELLITE,
2698     EL_PIG,
2699     EL_DRAGON,
2700     EL_MOLE,
2701
2702     /* elements that can explode by explosion or by dragonfire */
2703     EL_DYNAMITE,
2704     EL_DYNAMITE_ACTIVE,
2705     EL_EM_DYNAMITE,
2706     EL_EM_DYNAMITE_ACTIVE,
2707     EL_DYNABOMB_PLAYER_1_ACTIVE,
2708     EL_DYNABOMB_PLAYER_2_ACTIVE,
2709     EL_DYNABOMB_PLAYER_3_ACTIVE,
2710     EL_DYNABOMB_PLAYER_4_ACTIVE,
2711     EL_DYNABOMB_INCREASE_NUMBER,
2712     EL_DYNABOMB_INCREASE_SIZE,
2713     EL_DYNABOMB_INCREASE_POWER,
2714     EL_SP_DISK_RED_ACTIVE,
2715     EL_BUG,
2716     EL_PENGUIN,
2717     EL_SP_DISK_RED,
2718     EL_SP_DISK_YELLOW,
2719     EL_SP_SNIKSNAK,
2720     EL_SP_ELECTRON,
2721
2722     /* elements that can explode only by explosion */
2723     EL_BLACK_ORB,
2724
2725     -1
2726   };
2727
2728   static int ep_gravity_reachable[] =
2729   {
2730     EL_SAND,
2731     EL_SP_BASE,
2732     EL_TRAP,
2733     EL_INVISIBLE_SAND,
2734     EL_INVISIBLE_SAND_ACTIVE,
2735     EL_SP_PORT_LEFT,
2736     EL_SP_PORT_RIGHT,
2737     EL_SP_PORT_UP,
2738     EL_SP_PORT_DOWN,
2739     EL_SP_PORT_HORIZONTAL,
2740     EL_SP_PORT_VERTICAL,
2741     EL_SP_PORT_ANY,
2742     EL_SP_GRAVITY_PORT_LEFT,
2743     EL_SP_GRAVITY_PORT_RIGHT,
2744     EL_SP_GRAVITY_PORT_UP,
2745     EL_SP_GRAVITY_PORT_DOWN,
2746     EL_SP_GRAVITY_ON_PORT_LEFT,
2747     EL_SP_GRAVITY_ON_PORT_RIGHT,
2748     EL_SP_GRAVITY_ON_PORT_UP,
2749     EL_SP_GRAVITY_ON_PORT_DOWN,
2750     EL_SP_GRAVITY_OFF_PORT_LEFT,
2751     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2752     EL_SP_GRAVITY_OFF_PORT_UP,
2753     EL_SP_GRAVITY_OFF_PORT_DOWN,
2754     EL_EMC_GRASS,
2755
2756     -1
2757   };
2758
2759   static int ep_player[] =
2760   {
2761     EL_PLAYER_1,
2762     EL_PLAYER_2,
2763     EL_PLAYER_3,
2764     EL_PLAYER_4,
2765     EL_SP_MURPHY,
2766     EL_SOKOBAN_FIELD_PLAYER,
2767     EL_TRIGGER_PLAYER,
2768
2769     -1
2770   };
2771
2772   static int ep_can_pass_magic_wall[] =
2773   {
2774     EL_ROCK,
2775     EL_BD_ROCK,
2776     EL_EMERALD,
2777     EL_BD_DIAMOND,
2778     EL_EMERALD_YELLOW,
2779     EL_EMERALD_RED,
2780     EL_EMERALD_PURPLE,
2781     EL_DIAMOND,
2782
2783     -1
2784   };
2785
2786   static int ep_switchable[] =
2787   {
2788     EL_ROBOT_WHEEL,
2789     EL_SP_TERMINAL,
2790     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2791     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2792     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2793     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2794     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2795     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2796     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2797     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2798     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2799     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2800     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2801     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2802     EL_SWITCHGATE_SWITCH_UP,
2803     EL_SWITCHGATE_SWITCH_DOWN,
2804     EL_LIGHT_SWITCH,
2805     EL_LIGHT_SWITCH_ACTIVE,
2806     EL_TIMEGATE_SWITCH,
2807     EL_BALLOON_SWITCH_LEFT,
2808     EL_BALLOON_SWITCH_RIGHT,
2809     EL_BALLOON_SWITCH_UP,
2810     EL_BALLOON_SWITCH_DOWN,
2811     EL_BALLOON_SWITCH_ANY,
2812     EL_BALLOON_SWITCH_NONE,
2813     EL_LAMP,
2814     EL_TIME_ORB_FULL,
2815     EL_EMC_MAGIC_BALL_SWITCH,
2816     EL_EMC_MAGIC_BALL_SWITCH_ACTIVE,
2817
2818     -1
2819   };
2820
2821   static int ep_bd_element[] =
2822   {
2823     EL_EMPTY,
2824     EL_SAND,
2825     EL_WALL_SLIPPERY,
2826     EL_BD_WALL,
2827     EL_ROCK,
2828     EL_BD_ROCK,
2829     EL_BD_DIAMOND,
2830     EL_BD_MAGIC_WALL,
2831     EL_EXIT_CLOSED,
2832     EL_EXIT_OPEN,
2833     EL_STEELWALL,
2834     EL_PLAYER_1,
2835     EL_PLAYER_2,
2836     EL_PLAYER_3,
2837     EL_PLAYER_4,
2838     EL_BD_FIREFLY,
2839     EL_BD_FIREFLY_1,
2840     EL_BD_FIREFLY_2,
2841     EL_BD_FIREFLY_3,
2842     EL_BD_FIREFLY_4,
2843     EL_BD_BUTTERFLY,
2844     EL_BD_BUTTERFLY_1,
2845     EL_BD_BUTTERFLY_2,
2846     EL_BD_BUTTERFLY_3,
2847     EL_BD_BUTTERFLY_4,
2848     EL_BD_AMOEBA,
2849     EL_CHAR_QUESTION,
2850     EL_UNKNOWN,
2851
2852     -1
2853   };
2854
2855   static int ep_sp_element[] =
2856   {
2857     /* should always be valid */
2858     EL_EMPTY,
2859
2860     /* standard classic Supaplex elements */
2861     EL_SP_EMPTY,
2862     EL_SP_ZONK,
2863     EL_SP_BASE,
2864     EL_SP_MURPHY,
2865     EL_SP_INFOTRON,
2866     EL_SP_CHIP_SINGLE,
2867     EL_SP_HARDWARE_GRAY,
2868     EL_SP_EXIT_CLOSED,
2869     EL_SP_EXIT_OPEN,
2870     EL_SP_DISK_ORANGE,
2871     EL_SP_PORT_RIGHT,
2872     EL_SP_PORT_DOWN,
2873     EL_SP_PORT_LEFT,
2874     EL_SP_PORT_UP,
2875     EL_SP_GRAVITY_PORT_RIGHT,
2876     EL_SP_GRAVITY_PORT_DOWN,
2877     EL_SP_GRAVITY_PORT_LEFT,
2878     EL_SP_GRAVITY_PORT_UP,
2879     EL_SP_SNIKSNAK,
2880     EL_SP_DISK_YELLOW,
2881     EL_SP_TERMINAL,
2882     EL_SP_DISK_RED,
2883     EL_SP_PORT_VERTICAL,
2884     EL_SP_PORT_HORIZONTAL,
2885     EL_SP_PORT_ANY,
2886     EL_SP_ELECTRON,
2887     EL_SP_BUGGY_BASE,
2888     EL_SP_CHIP_LEFT,
2889     EL_SP_CHIP_RIGHT,
2890     EL_SP_HARDWARE_BASE_1,
2891     EL_SP_HARDWARE_GREEN,
2892     EL_SP_HARDWARE_BLUE,
2893     EL_SP_HARDWARE_RED,
2894     EL_SP_HARDWARE_YELLOW,
2895     EL_SP_HARDWARE_BASE_2,
2896     EL_SP_HARDWARE_BASE_3,
2897     EL_SP_HARDWARE_BASE_4,
2898     EL_SP_HARDWARE_BASE_5,
2899     EL_SP_HARDWARE_BASE_6,
2900     EL_SP_CHIP_TOP,
2901     EL_SP_CHIP_BOTTOM,
2902
2903     /* additional elements that appeared in newer Supaplex levels */
2904     EL_INVISIBLE_WALL,
2905
2906     /* additional gravity port elements (not switching, but setting gravity) */
2907     EL_SP_GRAVITY_ON_PORT_LEFT,
2908     EL_SP_GRAVITY_ON_PORT_RIGHT,
2909     EL_SP_GRAVITY_ON_PORT_UP,
2910     EL_SP_GRAVITY_ON_PORT_DOWN,
2911     EL_SP_GRAVITY_OFF_PORT_LEFT,
2912     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2913     EL_SP_GRAVITY_OFF_PORT_UP,
2914     EL_SP_GRAVITY_OFF_PORT_DOWN,
2915
2916     /* more than one Murphy in a level results in an inactive clone */
2917     EL_SP_MURPHY_CLONE,
2918
2919     /* runtime Supaplex elements */
2920     EL_SP_DISK_RED_ACTIVE,
2921     EL_SP_TERMINAL_ACTIVE,
2922     EL_SP_BUGGY_BASE_ACTIVATING,
2923     EL_SP_BUGGY_BASE_ACTIVE,
2924     EL_SP_EXIT_OPENING,
2925     EL_SP_EXIT_CLOSING,
2926
2927     -1
2928   };
2929
2930   static int ep_sb_element[] =
2931   {
2932     EL_EMPTY,
2933     EL_STEELWALL,
2934     EL_SOKOBAN_OBJECT,
2935     EL_SOKOBAN_FIELD_EMPTY,
2936     EL_SOKOBAN_FIELD_FULL,
2937     EL_SOKOBAN_FIELD_PLAYER,
2938     EL_PLAYER_1,
2939     EL_PLAYER_2,
2940     EL_PLAYER_3,
2941     EL_PLAYER_4,
2942     EL_INVISIBLE_STEELWALL,
2943
2944     -1
2945   };
2946
2947   static int ep_gem[] =
2948   {
2949     EL_BD_DIAMOND,
2950     EL_EMERALD,
2951     EL_EMERALD_YELLOW,
2952     EL_EMERALD_RED,
2953     EL_EMERALD_PURPLE,
2954     EL_DIAMOND,
2955
2956     -1
2957   };
2958
2959   static int ep_food_dark_yamyam[] =
2960   {
2961     EL_SAND,
2962     EL_BUG,
2963     EL_SPACESHIP,
2964     EL_BD_BUTTERFLY,
2965     EL_BD_FIREFLY,
2966     EL_YAMYAM,
2967     EL_ROBOT,
2968     EL_PACMAN,
2969     EL_AMOEBA_DROP,
2970     EL_AMOEBA_DEAD,
2971     EL_AMOEBA_WET,
2972     EL_AMOEBA_DRY,
2973     EL_AMOEBA_FULL,
2974     EL_BD_AMOEBA,
2975     EL_EMERALD,
2976     EL_BD_DIAMOND,
2977     EL_EMERALD_YELLOW,
2978     EL_EMERALD_RED,
2979     EL_EMERALD_PURPLE,
2980     EL_DIAMOND,
2981     EL_PEARL,
2982     EL_CRYSTAL,
2983
2984     -1
2985   };
2986
2987   static int ep_food_penguin[] =
2988   {
2989     EL_EMERALD,
2990     EL_BD_DIAMOND,
2991     EL_EMERALD_YELLOW,
2992     EL_EMERALD_RED,
2993     EL_EMERALD_PURPLE,
2994     EL_DIAMOND,
2995     EL_PEARL,
2996     EL_CRYSTAL,
2997
2998     -1
2999   };
3000
3001   static int ep_food_pig[] =
3002   {
3003     EL_EMERALD,
3004     EL_BD_DIAMOND,
3005     EL_EMERALD_YELLOW,
3006     EL_EMERALD_RED,
3007     EL_EMERALD_PURPLE,
3008     EL_DIAMOND,
3009
3010     -1
3011   };
3012
3013   static int ep_historic_wall[] =
3014   {
3015     EL_STEELWALL,
3016     EL_GATE_1,
3017     EL_GATE_2,
3018     EL_GATE_3,
3019     EL_GATE_4,
3020     EL_GATE_1_GRAY,
3021     EL_GATE_2_GRAY,
3022     EL_GATE_3_GRAY,
3023     EL_GATE_4_GRAY,
3024     EL_GATE_1_GRAY_ACTIVE,
3025     EL_GATE_2_GRAY_ACTIVE,
3026     EL_GATE_3_GRAY_ACTIVE,
3027     EL_GATE_4_GRAY_ACTIVE,
3028     EL_EM_GATE_1,
3029     EL_EM_GATE_2,
3030     EL_EM_GATE_3,
3031     EL_EM_GATE_4,
3032     EL_EM_GATE_1_GRAY,
3033     EL_EM_GATE_2_GRAY,
3034     EL_EM_GATE_3_GRAY,
3035     EL_EM_GATE_4_GRAY,
3036     EL_EM_GATE_1_GRAY_ACTIVE,
3037     EL_EM_GATE_2_GRAY_ACTIVE,
3038     EL_EM_GATE_3_GRAY_ACTIVE,
3039     EL_EM_GATE_4_GRAY_ACTIVE,
3040     EL_EXIT_CLOSED,
3041     EL_EXIT_OPENING,
3042     EL_EXIT_OPEN,
3043     EL_WALL,
3044     EL_WALL_SLIPPERY,
3045     EL_EXPANDABLE_WALL,
3046     EL_EXPANDABLE_WALL_HORIZONTAL,
3047     EL_EXPANDABLE_WALL_VERTICAL,
3048     EL_EXPANDABLE_WALL_ANY,
3049     EL_EXPANDABLE_WALL_GROWING,
3050     EL_BD_EXPANDABLE_WALL,
3051     EL_BD_WALL,
3052     EL_SP_CHIP_SINGLE,
3053     EL_SP_CHIP_LEFT,
3054     EL_SP_CHIP_RIGHT,
3055     EL_SP_CHIP_TOP,
3056     EL_SP_CHIP_BOTTOM,
3057     EL_SP_HARDWARE_GRAY,
3058     EL_SP_HARDWARE_GREEN,
3059     EL_SP_HARDWARE_BLUE,
3060     EL_SP_HARDWARE_RED,
3061     EL_SP_HARDWARE_YELLOW,
3062     EL_SP_HARDWARE_BASE_1,
3063     EL_SP_HARDWARE_BASE_2,
3064     EL_SP_HARDWARE_BASE_3,
3065     EL_SP_HARDWARE_BASE_4,
3066     EL_SP_HARDWARE_BASE_5,
3067     EL_SP_HARDWARE_BASE_6,
3068     EL_SP_TERMINAL,
3069     EL_SP_TERMINAL_ACTIVE,
3070     EL_SP_EXIT_CLOSED,
3071     EL_SP_EXIT_OPEN,
3072     EL_INVISIBLE_STEELWALL,
3073     EL_INVISIBLE_STEELWALL_ACTIVE,
3074     EL_INVISIBLE_WALL,
3075     EL_INVISIBLE_WALL_ACTIVE,
3076     EL_STEELWALL_SLIPPERY,
3077     EL_EMC_STEELWALL_1,
3078     EL_EMC_STEELWALL_2,
3079     EL_EMC_STEELWALL_3,
3080     EL_EMC_STEELWALL_4,
3081     EL_EMC_WALL_1,
3082     EL_EMC_WALL_2,
3083     EL_EMC_WALL_3,
3084     EL_EMC_WALL_4,
3085     EL_EMC_WALL_5,
3086     EL_EMC_WALL_6,
3087     EL_EMC_WALL_7,
3088     EL_EMC_WALL_8,
3089
3090     -1
3091   };
3092
3093   static int ep_historic_solid[] =
3094   {
3095     EL_WALL,
3096     EL_EXPANDABLE_WALL,
3097     EL_EXPANDABLE_WALL_HORIZONTAL,
3098     EL_EXPANDABLE_WALL_VERTICAL,
3099     EL_EXPANDABLE_WALL_ANY,
3100     EL_BD_EXPANDABLE_WALL,
3101     EL_BD_WALL,
3102     EL_WALL_SLIPPERY,
3103     EL_EXIT_CLOSED,
3104     EL_EXIT_OPENING,
3105     EL_EXIT_OPEN,
3106     EL_AMOEBA_DEAD,
3107     EL_AMOEBA_WET,
3108     EL_AMOEBA_DRY,
3109     EL_AMOEBA_FULL,
3110     EL_BD_AMOEBA,
3111     EL_QUICKSAND_EMPTY,
3112     EL_QUICKSAND_FULL,
3113     EL_QUICKSAND_FILLING,
3114     EL_QUICKSAND_EMPTYING,
3115     EL_MAGIC_WALL,
3116     EL_MAGIC_WALL_ACTIVE,
3117     EL_MAGIC_WALL_EMPTYING,
3118     EL_MAGIC_WALL_FILLING,
3119     EL_MAGIC_WALL_FULL,
3120     EL_MAGIC_WALL_DEAD,
3121     EL_BD_MAGIC_WALL,
3122     EL_BD_MAGIC_WALL_ACTIVE,
3123     EL_BD_MAGIC_WALL_EMPTYING,
3124     EL_BD_MAGIC_WALL_FULL,
3125     EL_BD_MAGIC_WALL_FILLING,
3126     EL_BD_MAGIC_WALL_DEAD,
3127     EL_GAME_OF_LIFE,
3128     EL_BIOMAZE,
3129     EL_SP_CHIP_SINGLE,
3130     EL_SP_CHIP_LEFT,
3131     EL_SP_CHIP_RIGHT,
3132     EL_SP_CHIP_TOP,
3133     EL_SP_CHIP_BOTTOM,
3134     EL_SP_TERMINAL,
3135     EL_SP_TERMINAL_ACTIVE,
3136     EL_SP_EXIT_CLOSED,
3137     EL_SP_EXIT_OPEN,
3138     EL_INVISIBLE_WALL,
3139     EL_INVISIBLE_WALL_ACTIVE,
3140     EL_SWITCHGATE_SWITCH_UP,
3141     EL_SWITCHGATE_SWITCH_DOWN,
3142     EL_TIMEGATE_SWITCH,
3143     EL_TIMEGATE_SWITCH_ACTIVE,
3144     EL_EMC_WALL_1,
3145     EL_EMC_WALL_2,
3146     EL_EMC_WALL_3,
3147     EL_EMC_WALL_4,
3148     EL_EMC_WALL_5,
3149     EL_EMC_WALL_6,
3150     EL_EMC_WALL_7,
3151     EL_EMC_WALL_8,
3152     EL_WALL_PEARL,
3153     EL_WALL_CRYSTAL,
3154
3155     /* the following elements are a direct copy of "indestructible" elements,
3156        except "EL_ACID", which is "indestructible", but not "solid"! */
3157 #if 0
3158     EL_ACID,
3159 #endif
3160     EL_STEELWALL,
3161     EL_ACID_POOL_TOPLEFT,
3162     EL_ACID_POOL_TOPRIGHT,
3163     EL_ACID_POOL_BOTTOMLEFT,
3164     EL_ACID_POOL_BOTTOM,
3165     EL_ACID_POOL_BOTTOMRIGHT,
3166     EL_SP_HARDWARE_GRAY,
3167     EL_SP_HARDWARE_GREEN,
3168     EL_SP_HARDWARE_BLUE,
3169     EL_SP_HARDWARE_RED,
3170     EL_SP_HARDWARE_YELLOW,
3171     EL_SP_HARDWARE_BASE_1,
3172     EL_SP_HARDWARE_BASE_2,
3173     EL_SP_HARDWARE_BASE_3,
3174     EL_SP_HARDWARE_BASE_4,
3175     EL_SP_HARDWARE_BASE_5,
3176     EL_SP_HARDWARE_BASE_6,
3177     EL_INVISIBLE_STEELWALL,
3178     EL_INVISIBLE_STEELWALL_ACTIVE,
3179     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3180     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3181     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3182     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3183     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3184     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3185     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3186     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3187     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3188     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3189     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3190     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3191     EL_LIGHT_SWITCH,
3192     EL_LIGHT_SWITCH_ACTIVE,
3193     EL_SIGN_EXCLAMATION,
3194     EL_SIGN_RADIOACTIVITY,
3195     EL_SIGN_STOP,
3196     EL_SIGN_WHEELCHAIR,
3197     EL_SIGN_PARKING,
3198     EL_SIGN_ONEWAY,
3199     EL_SIGN_HEART,
3200     EL_SIGN_TRIANGLE,
3201     EL_SIGN_ROUND,
3202     EL_SIGN_EXIT,
3203     EL_SIGN_YINYANG,
3204     EL_SIGN_OTHER,
3205     EL_STEELWALL_SLIPPERY,
3206     EL_EMC_STEELWALL_1,
3207     EL_EMC_STEELWALL_2,
3208     EL_EMC_STEELWALL_3,
3209     EL_EMC_STEELWALL_4,
3210     EL_CRYSTAL,
3211     EL_GATE_1,
3212     EL_GATE_2,
3213     EL_GATE_3,
3214     EL_GATE_4,
3215     EL_GATE_1_GRAY,
3216     EL_GATE_2_GRAY,
3217     EL_GATE_3_GRAY,
3218     EL_GATE_4_GRAY,
3219     EL_GATE_1_GRAY_ACTIVE,
3220     EL_GATE_2_GRAY_ACTIVE,
3221     EL_GATE_3_GRAY_ACTIVE,
3222     EL_GATE_4_GRAY_ACTIVE,
3223     EL_EM_GATE_1,
3224     EL_EM_GATE_2,
3225     EL_EM_GATE_3,
3226     EL_EM_GATE_4,
3227     EL_EM_GATE_1_GRAY,
3228     EL_EM_GATE_2_GRAY,
3229     EL_EM_GATE_3_GRAY,
3230     EL_EM_GATE_4_GRAY,
3231     EL_EM_GATE_1_GRAY_ACTIVE,
3232     EL_EM_GATE_2_GRAY_ACTIVE,
3233     EL_EM_GATE_3_GRAY_ACTIVE,
3234     EL_EM_GATE_4_GRAY_ACTIVE,
3235     EL_SWITCHGATE_OPEN,
3236     EL_SWITCHGATE_OPENING,
3237     EL_SWITCHGATE_CLOSED,
3238     EL_SWITCHGATE_CLOSING,
3239     EL_TIMEGATE_OPEN,
3240     EL_TIMEGATE_OPENING,
3241     EL_TIMEGATE_CLOSED,
3242     EL_TIMEGATE_CLOSING,
3243     EL_TUBE_ANY,
3244     EL_TUBE_VERTICAL,
3245     EL_TUBE_HORIZONTAL,
3246     EL_TUBE_VERTICAL_LEFT,
3247     EL_TUBE_VERTICAL_RIGHT,
3248     EL_TUBE_HORIZONTAL_UP,
3249     EL_TUBE_HORIZONTAL_DOWN,
3250     EL_TUBE_LEFT_UP,
3251     EL_TUBE_LEFT_DOWN,
3252     EL_TUBE_RIGHT_UP,
3253     EL_TUBE_RIGHT_DOWN,
3254
3255     -1
3256   };
3257
3258   static int ep_classic_enemy[] =
3259   {
3260     EL_BUG,
3261     EL_SPACESHIP,
3262     EL_BD_BUTTERFLY,
3263     EL_BD_FIREFLY,
3264
3265     EL_YAMYAM,
3266     EL_DARK_YAMYAM,
3267     EL_ROBOT,
3268     EL_PACMAN,
3269     EL_SP_SNIKSNAK,
3270     EL_SP_ELECTRON,
3271
3272     -1
3273   };
3274
3275   static int ep_belt[] =
3276   {
3277     EL_CONVEYOR_BELT_1_LEFT,
3278     EL_CONVEYOR_BELT_1_MIDDLE,
3279     EL_CONVEYOR_BELT_1_RIGHT,
3280     EL_CONVEYOR_BELT_2_LEFT,
3281     EL_CONVEYOR_BELT_2_MIDDLE,
3282     EL_CONVEYOR_BELT_2_RIGHT,
3283     EL_CONVEYOR_BELT_3_LEFT,
3284     EL_CONVEYOR_BELT_3_MIDDLE,
3285     EL_CONVEYOR_BELT_3_RIGHT,
3286     EL_CONVEYOR_BELT_4_LEFT,
3287     EL_CONVEYOR_BELT_4_MIDDLE,
3288     EL_CONVEYOR_BELT_4_RIGHT,
3289
3290     -1
3291   };
3292
3293   static int ep_belt_active[] =
3294   {
3295     EL_CONVEYOR_BELT_1_LEFT_ACTIVE,
3296     EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE,
3297     EL_CONVEYOR_BELT_1_RIGHT_ACTIVE,
3298     EL_CONVEYOR_BELT_2_LEFT_ACTIVE,
3299     EL_CONVEYOR_BELT_2_MIDDLE_ACTIVE,
3300     EL_CONVEYOR_BELT_2_RIGHT_ACTIVE,
3301     EL_CONVEYOR_BELT_3_LEFT_ACTIVE,
3302     EL_CONVEYOR_BELT_3_MIDDLE_ACTIVE,
3303     EL_CONVEYOR_BELT_3_RIGHT_ACTIVE,
3304     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
3305     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
3306     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
3307
3308     -1
3309   };
3310
3311   static int ep_belt_switch[] =
3312   {
3313     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3314     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3315     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3316     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3317     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3318     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3319     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3320     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3321     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3322     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3323     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3324     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3325
3326     -1
3327   };
3328
3329   static int ep_tube[] =
3330   {
3331     EL_TUBE_LEFT_UP,
3332     EL_TUBE_LEFT_DOWN,
3333     EL_TUBE_RIGHT_UP,
3334     EL_TUBE_RIGHT_DOWN,
3335     EL_TUBE_HORIZONTAL,
3336     EL_TUBE_HORIZONTAL_UP,
3337     EL_TUBE_HORIZONTAL_DOWN,
3338     EL_TUBE_VERTICAL,
3339     EL_TUBE_VERTICAL_LEFT,
3340     EL_TUBE_VERTICAL_RIGHT,
3341     EL_TUBE_ANY,
3342
3343     -1
3344   };
3345
3346   static int ep_keygate[] =
3347   {
3348     EL_GATE_1,
3349     EL_GATE_2,
3350     EL_GATE_3,
3351     EL_GATE_4,
3352     EL_GATE_1_GRAY,
3353     EL_GATE_2_GRAY,
3354     EL_GATE_3_GRAY,
3355     EL_GATE_4_GRAY,
3356     EL_GATE_1_GRAY_ACTIVE,
3357     EL_GATE_2_GRAY_ACTIVE,
3358     EL_GATE_3_GRAY_ACTIVE,
3359     EL_GATE_4_GRAY_ACTIVE,
3360     EL_EM_GATE_1,
3361     EL_EM_GATE_2,
3362     EL_EM_GATE_3,
3363     EL_EM_GATE_4,
3364     EL_EM_GATE_1_GRAY,
3365     EL_EM_GATE_2_GRAY,
3366     EL_EM_GATE_3_GRAY,
3367     EL_EM_GATE_4_GRAY,
3368     EL_EM_GATE_1_GRAY_ACTIVE,
3369     EL_EM_GATE_2_GRAY_ACTIVE,
3370     EL_EM_GATE_3_GRAY_ACTIVE,
3371     EL_EM_GATE_4_GRAY_ACTIVE,
3372     EL_EMC_GATE_5,
3373     EL_EMC_GATE_6,
3374     EL_EMC_GATE_7,
3375     EL_EMC_GATE_8,
3376     EL_EMC_GATE_5_GRAY,
3377     EL_EMC_GATE_6_GRAY,
3378     EL_EMC_GATE_7_GRAY,
3379     EL_EMC_GATE_8_GRAY,
3380     EL_EMC_GATE_5_GRAY_ACTIVE,
3381     EL_EMC_GATE_6_GRAY_ACTIVE,
3382     EL_EMC_GATE_7_GRAY_ACTIVE,
3383     EL_EMC_GATE_8_GRAY_ACTIVE,
3384
3385     -1
3386   };
3387
3388   static int ep_amoeboid[] =
3389   {
3390     EL_AMOEBA_DEAD,
3391     EL_AMOEBA_WET,
3392     EL_AMOEBA_DRY,
3393     EL_AMOEBA_FULL,
3394     EL_BD_AMOEBA,
3395     EL_EMC_DRIPPER,
3396
3397     -1
3398   };
3399
3400   static int ep_amoebalive[] =
3401   {
3402     EL_AMOEBA_WET,
3403     EL_AMOEBA_DRY,
3404     EL_AMOEBA_FULL,
3405     EL_BD_AMOEBA,
3406     EL_EMC_DRIPPER,
3407
3408     -1
3409   };
3410
3411   static int ep_has_editor_content[] =
3412   {
3413     EL_PLAYER_1,
3414     EL_PLAYER_2,
3415     EL_PLAYER_3,
3416     EL_PLAYER_4,
3417     EL_SP_MURPHY,
3418     EL_YAMYAM,
3419     EL_YAMYAM_LEFT,
3420     EL_YAMYAM_RIGHT,
3421     EL_YAMYAM_UP,
3422     EL_YAMYAM_DOWN,
3423     EL_AMOEBA_WET,
3424     EL_AMOEBA_DRY,
3425     EL_AMOEBA_FULL,
3426     EL_BD_AMOEBA,
3427     EL_EMC_MAGIC_BALL,
3428     EL_EMC_ANDROID,
3429
3430     -1
3431   };
3432
3433   static int ep_can_turn_each_move[] =
3434   {
3435     /* !!! do something with this one !!! */
3436     -1
3437   };
3438
3439   static int ep_can_grow[] =
3440   {
3441     EL_BD_AMOEBA,
3442     EL_AMOEBA_DROP,
3443     EL_AMOEBA_WET,
3444     EL_AMOEBA_DRY,
3445     EL_AMOEBA_FULL,
3446     EL_GAME_OF_LIFE,
3447     EL_BIOMAZE,
3448     EL_EMC_DRIPPER,
3449
3450     -1
3451   };
3452
3453   static int ep_active_bomb[] =
3454   {
3455     EL_DYNAMITE_ACTIVE,
3456     EL_EM_DYNAMITE_ACTIVE,
3457     EL_DYNABOMB_PLAYER_1_ACTIVE,
3458     EL_DYNABOMB_PLAYER_2_ACTIVE,
3459     EL_DYNABOMB_PLAYER_3_ACTIVE,
3460     EL_DYNABOMB_PLAYER_4_ACTIVE,
3461     EL_SP_DISK_RED_ACTIVE,
3462
3463     -1
3464   };
3465
3466   static int ep_inactive[] =
3467   {
3468     EL_EMPTY,
3469     EL_SAND,
3470     EL_WALL,
3471     EL_BD_WALL,
3472     EL_WALL_SLIPPERY,
3473     EL_STEELWALL,
3474     EL_AMOEBA_DEAD,
3475     EL_QUICKSAND_EMPTY,
3476     EL_STONEBLOCK,
3477     EL_ROBOT_WHEEL,
3478     EL_KEY_1,
3479     EL_KEY_2,
3480     EL_KEY_3,
3481     EL_KEY_4,
3482     EL_EM_KEY_1,
3483     EL_EM_KEY_2,
3484     EL_EM_KEY_3,
3485     EL_EM_KEY_4,
3486     EL_EMC_KEY_5,
3487     EL_EMC_KEY_6,
3488     EL_EMC_KEY_7,
3489     EL_EMC_KEY_8,
3490     EL_GATE_1,
3491     EL_GATE_2,
3492     EL_GATE_3,
3493     EL_GATE_4,
3494     EL_GATE_1_GRAY,
3495     EL_GATE_2_GRAY,
3496     EL_GATE_3_GRAY,
3497     EL_GATE_4_GRAY,
3498     EL_GATE_1_GRAY_ACTIVE,
3499     EL_GATE_2_GRAY_ACTIVE,
3500     EL_GATE_3_GRAY_ACTIVE,
3501     EL_GATE_4_GRAY_ACTIVE,
3502     EL_EM_GATE_1,
3503     EL_EM_GATE_2,
3504     EL_EM_GATE_3,
3505     EL_EM_GATE_4,
3506     EL_EM_GATE_1_GRAY,
3507     EL_EM_GATE_2_GRAY,
3508     EL_EM_GATE_3_GRAY,
3509     EL_EM_GATE_4_GRAY,
3510     EL_EM_GATE_1_GRAY_ACTIVE,
3511     EL_EM_GATE_2_GRAY_ACTIVE,
3512     EL_EM_GATE_3_GRAY_ACTIVE,
3513     EL_EM_GATE_4_GRAY_ACTIVE,
3514     EL_EMC_GATE_5,
3515     EL_EMC_GATE_6,
3516     EL_EMC_GATE_7,
3517     EL_EMC_GATE_8,
3518     EL_EMC_GATE_5_GRAY,
3519     EL_EMC_GATE_6_GRAY,
3520     EL_EMC_GATE_7_GRAY,
3521     EL_EMC_GATE_8_GRAY,
3522     EL_EMC_GATE_5_GRAY_ACTIVE,
3523     EL_EMC_GATE_6_GRAY_ACTIVE,
3524     EL_EMC_GATE_7_GRAY_ACTIVE,
3525     EL_EMC_GATE_8_GRAY_ACTIVE,
3526     EL_DYNAMITE,
3527     EL_EM_DYNAMITE,
3528     EL_INVISIBLE_STEELWALL,
3529     EL_INVISIBLE_WALL,
3530     EL_INVISIBLE_SAND,
3531     EL_LAMP,
3532     EL_LAMP_ACTIVE,
3533     EL_WALL_EMERALD,
3534     EL_WALL_DIAMOND,
3535     EL_WALL_BD_DIAMOND,
3536     EL_WALL_EMERALD_YELLOW,
3537     EL_DYNABOMB_INCREASE_NUMBER,
3538     EL_DYNABOMB_INCREASE_SIZE,
3539     EL_DYNABOMB_INCREASE_POWER,
3540 #if 0
3541     EL_SOKOBAN_OBJECT,
3542 #endif
3543     EL_SOKOBAN_FIELD_EMPTY,
3544     EL_SOKOBAN_FIELD_FULL,
3545     EL_WALL_EMERALD_RED,
3546     EL_WALL_EMERALD_PURPLE,
3547     EL_ACID_POOL_TOPLEFT,
3548     EL_ACID_POOL_TOPRIGHT,
3549     EL_ACID_POOL_BOTTOMLEFT,
3550     EL_ACID_POOL_BOTTOM,
3551     EL_ACID_POOL_BOTTOMRIGHT,
3552     EL_MAGIC_WALL,
3553     EL_MAGIC_WALL_DEAD,
3554     EL_BD_MAGIC_WALL,
3555     EL_BD_MAGIC_WALL_DEAD,
3556     EL_AMOEBA_TO_DIAMOND,
3557     EL_BLOCKED,
3558     EL_SP_EMPTY,
3559     EL_SP_BASE,
3560     EL_SP_PORT_RIGHT,
3561     EL_SP_PORT_DOWN,
3562     EL_SP_PORT_LEFT,
3563     EL_SP_PORT_UP,
3564     EL_SP_GRAVITY_PORT_RIGHT,
3565     EL_SP_GRAVITY_PORT_DOWN,
3566     EL_SP_GRAVITY_PORT_LEFT,
3567     EL_SP_GRAVITY_PORT_UP,
3568     EL_SP_PORT_HORIZONTAL,
3569     EL_SP_PORT_VERTICAL,
3570     EL_SP_PORT_ANY,
3571     EL_SP_DISK_RED,
3572 #if 0
3573     EL_SP_DISK_YELLOW,
3574 #endif
3575     EL_SP_CHIP_SINGLE,
3576     EL_SP_CHIP_LEFT,
3577     EL_SP_CHIP_RIGHT,
3578     EL_SP_CHIP_TOP,
3579     EL_SP_CHIP_BOTTOM,
3580     EL_SP_HARDWARE_GRAY,
3581     EL_SP_HARDWARE_GREEN,
3582     EL_SP_HARDWARE_BLUE,
3583     EL_SP_HARDWARE_RED,
3584     EL_SP_HARDWARE_YELLOW,
3585     EL_SP_HARDWARE_BASE_1,
3586     EL_SP_HARDWARE_BASE_2,
3587     EL_SP_HARDWARE_BASE_3,
3588     EL_SP_HARDWARE_BASE_4,
3589     EL_SP_HARDWARE_BASE_5,
3590     EL_SP_HARDWARE_BASE_6,
3591     EL_SP_GRAVITY_ON_PORT_LEFT,
3592     EL_SP_GRAVITY_ON_PORT_RIGHT,
3593     EL_SP_GRAVITY_ON_PORT_UP,
3594     EL_SP_GRAVITY_ON_PORT_DOWN,
3595     EL_SP_GRAVITY_OFF_PORT_LEFT,
3596     EL_SP_GRAVITY_OFF_PORT_RIGHT,
3597     EL_SP_GRAVITY_OFF_PORT_UP,
3598     EL_SP_GRAVITY_OFF_PORT_DOWN,
3599     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3600     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3601     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3602     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3603     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3604     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3605     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3606     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3607     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3608     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3609     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3610     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3611     EL_SIGN_EXCLAMATION,
3612     EL_SIGN_RADIOACTIVITY,
3613     EL_SIGN_STOP,
3614     EL_SIGN_WHEELCHAIR,
3615     EL_SIGN_PARKING,
3616     EL_SIGN_ONEWAY,
3617     EL_SIGN_HEART,
3618     EL_SIGN_TRIANGLE,
3619     EL_SIGN_ROUND,
3620     EL_SIGN_EXIT,
3621     EL_SIGN_YINYANG,
3622     EL_SIGN_OTHER,
3623     EL_STEELWALL_SLIPPERY,
3624     EL_EMC_STEELWALL_1,
3625     EL_EMC_STEELWALL_2,
3626     EL_EMC_STEELWALL_3,
3627     EL_EMC_STEELWALL_4,
3628     EL_EMC_WALL_SLIPPERY_1,
3629     EL_EMC_WALL_SLIPPERY_2,
3630     EL_EMC_WALL_SLIPPERY_3,
3631     EL_EMC_WALL_SLIPPERY_4,
3632     EL_EMC_WALL_1,
3633     EL_EMC_WALL_2,
3634     EL_EMC_WALL_3,
3635     EL_EMC_WALL_4,
3636     EL_EMC_WALL_5,
3637     EL_EMC_WALL_6,
3638     EL_EMC_WALL_7,
3639     EL_EMC_WALL_8,
3640     EL_EMC_WALL_9,
3641     EL_EMC_WALL_10,
3642     EL_EMC_WALL_11,
3643     EL_EMC_WALL_12,
3644     EL_EMC_WALL_13,
3645     EL_EMC_WALL_14,
3646     EL_EMC_WALL_15,
3647     EL_EMC_WALL_16,
3648
3649     -1
3650   };
3651
3652   static int ep_em_slippery_wall[] =
3653   {
3654     -1
3655   };
3656
3657   static int ep_gfx_crumbled[] =
3658   {
3659     EL_SAND,
3660     EL_LANDMINE,
3661     EL_TRAP,
3662     EL_TRAP_ACTIVE,
3663
3664     -1
3665   };
3666
3667   static int ep_editor_cascade_active[] =
3668   {
3669     EL_INTERNAL_CASCADE_BD_ACTIVE,
3670     EL_INTERNAL_CASCADE_EM_ACTIVE,
3671     EL_INTERNAL_CASCADE_EMC_ACTIVE,
3672     EL_INTERNAL_CASCADE_RND_ACTIVE,
3673     EL_INTERNAL_CASCADE_SB_ACTIVE,
3674     EL_INTERNAL_CASCADE_SP_ACTIVE,
3675     EL_INTERNAL_CASCADE_DC_ACTIVE,
3676     EL_INTERNAL_CASCADE_DX_ACTIVE,
3677     EL_INTERNAL_CASCADE_CHARS_ACTIVE,
3678     EL_INTERNAL_CASCADE_STEELCHARS_ACTIVE,
3679     EL_INTERNAL_CASCADE_CE_ACTIVE,
3680     EL_INTERNAL_CASCADE_GE_ACTIVE,
3681     EL_INTERNAL_CASCADE_REF_ACTIVE,
3682     EL_INTERNAL_CASCADE_USER_ACTIVE,
3683     EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
3684
3685     -1
3686   };
3687
3688   static int ep_editor_cascade_inactive[] =
3689   {
3690     EL_INTERNAL_CASCADE_BD,
3691     EL_INTERNAL_CASCADE_EM,
3692     EL_INTERNAL_CASCADE_EMC,
3693     EL_INTERNAL_CASCADE_RND,
3694     EL_INTERNAL_CASCADE_SB,
3695     EL_INTERNAL_CASCADE_SP,
3696     EL_INTERNAL_CASCADE_DC,
3697     EL_INTERNAL_CASCADE_DX,
3698     EL_INTERNAL_CASCADE_CHARS,
3699     EL_INTERNAL_CASCADE_STEELCHARS,
3700     EL_INTERNAL_CASCADE_CE,
3701     EL_INTERNAL_CASCADE_GE,
3702     EL_INTERNAL_CASCADE_REF,
3703     EL_INTERNAL_CASCADE_USER,
3704     EL_INTERNAL_CASCADE_DYNAMIC,
3705
3706     -1
3707   };
3708
3709   static int ep_obsolete[] =
3710   {
3711     EL_PLAYER_OBSOLETE,
3712     EL_KEY_OBSOLETE,
3713     EL_EM_KEY_1_FILE_OBSOLETE,
3714     EL_EM_KEY_2_FILE_OBSOLETE,
3715     EL_EM_KEY_3_FILE_OBSOLETE,
3716     EL_EM_KEY_4_FILE_OBSOLETE,
3717     EL_ENVELOPE_OBSOLETE,
3718
3719     -1
3720   };
3721
3722   static struct
3723   {
3724     int *elements;
3725     int property;
3726   } element_properties[] =
3727   {
3728     { ep_diggable,                      EP_DIGGABLE                     },
3729     { ep_collectible_only,              EP_COLLECTIBLE_ONLY             },
3730     { ep_dont_run_into,                 EP_DONT_RUN_INTO                },
3731     { ep_dont_collide_with,             EP_DONT_COLLIDE_WITH            },
3732     { ep_dont_touch,                    EP_DONT_TOUCH                   },
3733     { ep_indestructible,                EP_INDESTRUCTIBLE               },
3734     { ep_slippery,                      EP_SLIPPERY                     },
3735     { ep_can_change,                    EP_CAN_CHANGE                   },
3736     { ep_can_move,                      EP_CAN_MOVE                     },
3737     { ep_can_fall,                      EP_CAN_FALL                     },
3738     { ep_can_smash_player,              EP_CAN_SMASH_PLAYER             },
3739     { ep_can_smash_enemies,             EP_CAN_SMASH_ENEMIES            },
3740     { ep_can_smash_everything,          EP_CAN_SMASH_EVERYTHING         },
3741     { ep_explodes_by_fire,              EP_EXPLODES_BY_FIRE             },
3742     { ep_explodes_smashed,              EP_EXPLODES_SMASHED             },
3743     { ep_explodes_impact,               EP_EXPLODES_IMPACT              },
3744     { ep_walkable_over,                 EP_WALKABLE_OVER                },
3745     { ep_walkable_inside,               EP_WALKABLE_INSIDE              },
3746     { ep_walkable_under,                EP_WALKABLE_UNDER               },
3747     { ep_passable_over,                 EP_PASSABLE_OVER                },
3748     { ep_passable_inside,               EP_PASSABLE_INSIDE              },
3749     { ep_passable_under,                EP_PASSABLE_UNDER               },
3750     { ep_droppable,                     EP_DROPPABLE                    },
3751     { ep_explodes_1x1_old,              EP_EXPLODES_1X1_OLD             },
3752     { ep_pushable,                      EP_PUSHABLE                     },
3753     { ep_explodes_cross_old,            EP_EXPLODES_CROSS_OLD           },
3754     { ep_protected,                     EP_PROTECTED                    },
3755     { ep_throwable,                     EP_THROWABLE                    },
3756     { ep_can_explode,                   EP_CAN_EXPLODE                  },
3757     { ep_gravity_reachable,             EP_GRAVITY_REACHABLE            },
3758
3759     { ep_player,                        EP_PLAYER                       },
3760     { ep_can_pass_magic_wall,           EP_CAN_PASS_MAGIC_WALL          },
3761     { ep_switchable,                    EP_SWITCHABLE                   },
3762     { ep_bd_element,                    EP_BD_ELEMENT                   },
3763     { ep_sp_element,                    EP_SP_ELEMENT                   },
3764     { ep_sb_element,                    EP_SB_ELEMENT                   },
3765     { ep_gem,                           EP_GEM                          },
3766     { ep_food_dark_yamyam,              EP_FOOD_DARK_YAMYAM             },
3767     { ep_food_penguin,                  EP_FOOD_PENGUIN                 },
3768     { ep_food_pig,                      EP_FOOD_PIG                     },
3769     { ep_historic_wall,                 EP_HISTORIC_WALL                },
3770     { ep_historic_solid,                EP_HISTORIC_SOLID               },
3771     { ep_classic_enemy,                 EP_CLASSIC_ENEMY                },
3772     { ep_belt,                          EP_BELT                         },
3773     { ep_belt_active,                   EP_BELT_ACTIVE                  },
3774     { ep_belt_switch,                   EP_BELT_SWITCH                  },
3775     { ep_tube,                          EP_TUBE                         },
3776     { ep_keygate,                       EP_KEYGATE                      },
3777     { ep_amoeboid,                      EP_AMOEBOID                     },
3778     { ep_amoebalive,                    EP_AMOEBALIVE                   },
3779     { ep_has_editor_content,            EP_HAS_EDITOR_CONTENT           },
3780     { ep_can_turn_each_move,            EP_CAN_TURN_EACH_MOVE           },
3781     { ep_can_grow,                      EP_CAN_GROW                     },
3782     { ep_active_bomb,                   EP_ACTIVE_BOMB                  },
3783     { ep_inactive,                      EP_INACTIVE                     },
3784
3785     { ep_em_slippery_wall,              EP_EM_SLIPPERY_WALL             },
3786
3787     { ep_gfx_crumbled,                  EP_GFX_CRUMBLED                 },
3788
3789     { ep_editor_cascade_active,         EP_EDITOR_CASCADE_ACTIVE        },
3790     { ep_editor_cascade_inactive,       EP_EDITOR_CASCADE_INACTIVE      },
3791
3792     { ep_obsolete,                      EP_OBSOLETE                     },
3793
3794     { NULL,                             -1                              }
3795   };
3796
3797   int i, j, k;
3798
3799   /* always start with reliable default values (element has no properties) */
3800   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3801     for (j = 0; j < NUM_ELEMENT_PROPERTIES; j++)
3802       SET_PROPERTY(i, j, FALSE);
3803
3804   /* set all base element properties from above array definitions */
3805   for (i = 0; element_properties[i].elements != NULL; i++)
3806     for (j = 0; (element_properties[i].elements)[j] != -1; j++)
3807       SET_PROPERTY((element_properties[i].elements)[j],
3808                    element_properties[i].property, TRUE);
3809
3810   /* copy properties to some elements that are only stored in level file */
3811   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
3812     for (j = 0; copy_properties[j][0] != -1; j++)
3813       if (HAS_PROPERTY(copy_properties[j][0], i))
3814         for (k = 1; k <= 4; k++)
3815           SET_PROPERTY(copy_properties[j][k], i, TRUE);
3816 }
3817
3818 void InitElementPropertiesEngine(int engine_version)
3819 {
3820   static int no_wall_properties[] =
3821   {
3822     EP_DIGGABLE,
3823     EP_COLLECTIBLE_ONLY,
3824     EP_DONT_RUN_INTO,
3825     EP_DONT_COLLIDE_WITH,
3826     EP_CAN_MOVE,
3827     EP_CAN_FALL,
3828     EP_CAN_SMASH_PLAYER,
3829     EP_CAN_SMASH_ENEMIES,
3830     EP_CAN_SMASH_EVERYTHING,
3831     EP_PUSHABLE,
3832
3833     EP_PLAYER,
3834     EP_GEM,
3835     EP_FOOD_DARK_YAMYAM,
3836     EP_FOOD_PENGUIN,
3837     EP_BELT,
3838     EP_BELT_ACTIVE,
3839     EP_TUBE,
3840     EP_AMOEBOID,
3841     EP_AMOEBALIVE,
3842     EP_ACTIVE_BOMB,
3843
3844     EP_ACCESSIBLE,
3845
3846     -1
3847   };
3848
3849   int i, j;
3850
3851   /* important: after initialization in InitElementPropertiesStatic(), the
3852      elements are not again initialized to a default value; therefore all
3853      changes have to make sure that they leave the element with a defined
3854      property (which means that conditional property changes must be set to
3855      a reliable default value before) */
3856
3857   /* ---------- recursively resolve group elements ------------------------- */
3858
3859   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3860     for (j = 0; j < NUM_GROUP_ELEMENTS; j++)
3861       element_info[i].in_group[j] = FALSE;
3862
3863   for (i = 0; i < NUM_GROUP_ELEMENTS; i++)
3864     resolve_group_element(EL_GROUP_START + i, 0);
3865
3866   /* set all special, combined or engine dependent element properties */
3867   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3868   {
3869     /* ---------- INACTIVE ------------------------------------------------- */
3870     SET_PROPERTY(i, EP_INACTIVE, ((i >= EL_CHAR_START &&
3871                                    i <= EL_CHAR_END) ||
3872                                   (i >= EL_STEELCHAR_START &&
3873                                    i <= EL_STEELCHAR_END)));
3874
3875     /* ---------- INDESTRUCTIBLE -------------------------------------------- */
3876     if (i >= EL_STEELCHAR_START && i <= EL_STEELCHAR_END)
3877       SET_PROPERTY(i, EP_INDESTRUCTIBLE, TRUE);
3878
3879     /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
3880     SET_PROPERTY(i, EP_WALKABLE, (IS_WALKABLE_OVER(i) ||
3881                                   IS_WALKABLE_INSIDE(i) ||
3882                                   IS_WALKABLE_UNDER(i)));
3883
3884     SET_PROPERTY(i, EP_PASSABLE, (IS_PASSABLE_OVER(i) ||
3885                                   IS_PASSABLE_INSIDE(i) ||
3886                                   IS_PASSABLE_UNDER(i)));
3887
3888     SET_PROPERTY(i, EP_ACCESSIBLE_OVER, (IS_WALKABLE_OVER(i) ||
3889                                          IS_PASSABLE_OVER(i)));
3890
3891     SET_PROPERTY(i, EP_ACCESSIBLE_INSIDE, (IS_WALKABLE_INSIDE(i) ||
3892                                            IS_PASSABLE_INSIDE(i)));
3893
3894     SET_PROPERTY(i, EP_ACCESSIBLE_UNDER, (IS_WALKABLE_UNDER(i) ||
3895                                           IS_PASSABLE_UNDER(i)));
3896
3897     SET_PROPERTY(i, EP_ACCESSIBLE, (IS_WALKABLE(i) ||
3898                                     IS_PASSABLE(i)));
3899
3900     /* ---------- COLLECTIBLE ---------------------------------------------- */
3901     SET_PROPERTY(i, EP_COLLECTIBLE, (IS_COLLECTIBLE_ONLY(i) ||
3902                                      IS_DROPPABLE(i) ||
3903                                      IS_THROWABLE(i)));
3904
3905     /* ---------- SNAPPABLE ------------------------------------------------ */
3906     SET_PROPERTY(i, EP_SNAPPABLE, (IS_DIGGABLE(i) ||
3907                                    IS_COLLECTIBLE(i) ||
3908                                    IS_SWITCHABLE(i) ||
3909                                    i == EL_BD_ROCK));
3910
3911     /* ---------- WALL ----------------------------------------------------- */
3912     SET_PROPERTY(i, EP_WALL, TRUE);     /* default: element is wall */
3913
3914     for (j = 0; no_wall_properties[j] != -1; j++)
3915       if (HAS_PROPERTY(i, no_wall_properties[j]) ||
3916           i >= EL_FIRST_RUNTIME_UNREAL)
3917         SET_PROPERTY(i, EP_WALL, FALSE);
3918
3919     if (IS_HISTORIC_WALL(i))
3920       SET_PROPERTY(i, EP_WALL, TRUE);
3921
3922     /* ---------- SOLID_FOR_PUSHING ---------------------------------------- */
3923     if (engine_version < VERSION_IDENT(2,2,0,0))
3924       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, IS_HISTORIC_SOLID(i));
3925     else
3926       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, (!IS_WALKABLE(i) &&
3927                                              !IS_DIGGABLE(i) &&
3928                                              !IS_COLLECTIBLE(i)));
3929
3930     /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
3931     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
3932       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
3933     else
3934       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, (IS_CUSTOM_ELEMENT(i) &&
3935                                             IS_INDESTRUCTIBLE(i)));
3936
3937     /* ---------- EXPLOSION_PROOF ------------------------------------------ */
3938     if (i == EL_FLAMES)
3939       SET_PROPERTY(i, EP_EXPLOSION_PROOF, TRUE);
3940     else if (engine_version < VERSION_IDENT(2,2,0,0))
3941       SET_PROPERTY(i, EP_EXPLOSION_PROOF, IS_INDESTRUCTIBLE(i));
3942     else
3943       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3944                                            (!IS_WALKABLE(i) ||
3945                                             IS_PROTECTED(i))));
3946
3947     if (IS_CUSTOM_ELEMENT(i))
3948     {
3949       /* these are additional properties which are initially false when set */
3950
3951       /* ---------- DONT_COLLIDE_WITH / DONT_RUN_INTO ---------------------- */
3952       if (DONT_TOUCH(i))
3953         SET_PROPERTY(i, EP_DONT_COLLIDE_WITH, TRUE);
3954       if (DONT_COLLIDE_WITH(i))
3955         SET_PROPERTY(i, EP_DONT_RUN_INTO, TRUE);
3956
3957       /* ---------- CAN_SMASH_ENEMIES / CAN_SMASH_PLAYER ------------------- */
3958       if (CAN_SMASH_EVERYTHING(i))
3959         SET_PROPERTY(i, EP_CAN_SMASH_ENEMIES, TRUE);
3960       if (CAN_SMASH_ENEMIES(i))
3961         SET_PROPERTY(i, EP_CAN_SMASH_PLAYER, TRUE);
3962     }
3963
3964     /* ---------- CAN_SMASH ------------------------------------------------ */
3965     SET_PROPERTY(i, EP_CAN_SMASH, (CAN_SMASH_PLAYER(i) ||
3966                                    CAN_SMASH_ENEMIES(i) ||
3967                                    CAN_SMASH_EVERYTHING(i)));
3968
3969     /* ---------- CAN_EXPLODE_BY_FIRE -------------------------------------- */
3970     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_FIRE, (CAN_EXPLODE(i) &&
3971                                              EXPLODES_BY_FIRE(i)));
3972
3973     /* ---------- CAN_EXPLODE_SMASHED -------------------------------------- */
3974     SET_PROPERTY(i, EP_CAN_EXPLODE_SMASHED, (CAN_EXPLODE(i) &&
3975                                              EXPLODES_SMASHED(i)));
3976
3977     /* ---------- CAN_EXPLODE_IMPACT --------------------------------------- */
3978     SET_PROPERTY(i, EP_CAN_EXPLODE_IMPACT, (CAN_EXPLODE(i) &&
3979                                             EXPLODES_IMPACT(i)));
3980
3981     /* ---------- CAN_EXPLODE_BY_DRAGONFIRE -------------------------------- */
3982     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_DRAGONFIRE, CAN_EXPLODE_BY_FIRE(i));
3983
3984     /* ---------- CAN_EXPLODE_BY_EXPLOSION --------------------------------- */
3985     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_EXPLOSION, (CAN_EXPLODE_BY_FIRE(i) ||
3986                                                   i == EL_BLACK_ORB));
3987
3988     /* ---------- COULD_MOVE_INTO_ACID ------------------------------------- */
3989     SET_PROPERTY(i, EP_COULD_MOVE_INTO_ACID, (ELEM_IS_PLAYER(i) ||
3990                                               CAN_MOVE(i) ||
3991                                               IS_CUSTOM_ELEMENT(i)));
3992
3993     /* ---------- MAYBE_DONT_COLLIDE_WITH ---------------------------------- */
3994     SET_PROPERTY(i, EP_MAYBE_DONT_COLLIDE_WITH, (i == EL_SP_SNIKSNAK ||
3995                                                  i == EL_SP_ELECTRON));
3996
3997     /* ---------- CAN_MOVE_INTO_ACID --------------------------------------- */
3998     if (COULD_MOVE_INTO_ACID(i) && !IS_CUSTOM_ELEMENT(i))
3999       SET_PROPERTY(i, EP_CAN_MOVE_INTO_ACID,
4000                    getMoveIntoAcidProperty(&level, i));
4001
4002     /* ---------- DONT_COLLIDE_WITH ---------------------------------------- */
4003     if (MAYBE_DONT_COLLIDE_WITH(i))
4004       SET_PROPERTY(i, EP_DONT_COLLIDE_WITH,
4005                    getDontCollideWithProperty(&level, i));
4006
4007     /* ---------- SP_PORT -------------------------------------------------- */
4008     SET_PROPERTY(i, EP_SP_PORT, (IS_SP_ELEMENT(i) &&
4009                                  IS_PASSABLE_INSIDE(i)));
4010
4011     /* ---------- CAN_BE_CLONED_BY_ANDROID --------------------------------- */
4012     for (j = 0; j < level.num_android_clone_elements; j++)
4013       SET_PROPERTY(i, EP_CAN_BE_CLONED_BY_ANDROID,
4014                    (i != EL_EMPTY &&
4015                     IS_EQUAL_OR_IN_GROUP(i, level.android_clone_element[j])));
4016
4017     /* ---------- CAN_CHANGE ----------------------------------------------- */
4018     SET_PROPERTY(i, EP_CAN_CHANGE, FALSE);      /* default: cannot change */
4019     for (j = 0; j < element_info[i].num_change_pages; j++)
4020       if (element_info[i].change_page[j].can_change)
4021         SET_PROPERTY(i, EP_CAN_CHANGE, TRUE);
4022
4023     /* ---------- HAS_ACTION ----------------------------------------------- */
4024     SET_PROPERTY(i, EP_HAS_ACTION, FALSE);      /* default: has no action */
4025     for (j = 0; j < element_info[i].num_change_pages; j++)
4026       if (element_info[i].change_page[j].has_action)
4027         SET_PROPERTY(i, EP_HAS_ACTION, TRUE);
4028
4029     /* ---------- CAN_CHANGE_OR_HAS_ACTION --------------------------------- */
4030     SET_PROPERTY(i, EP_CAN_CHANGE_OR_HAS_ACTION, (CAN_CHANGE(i) ||
4031                                                   HAS_ACTION(i)));
4032
4033     /* ---------- GFX_CRUMBLED --------------------------------------------- */
4034 #if 1
4035     SET_PROPERTY(i, EP_GFX_CRUMBLED,
4036                  element_info[i].crumbled[ACTION_DEFAULT] !=
4037                  element_info[i].graphic[ACTION_DEFAULT]);
4038 #else
4039     /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
4040     SET_PROPERTY(i, EP_GFX_CRUMBLED,
4041                  element_info[i].crumbled[ACTION_DEFAULT] != IMG_EMPTY);
4042 #endif
4043
4044     /* ---------- EDITOR_CASCADE ------------------------------------------- */
4045     SET_PROPERTY(i, EP_EDITOR_CASCADE, (IS_EDITOR_CASCADE_ACTIVE(i) ||
4046                                         IS_EDITOR_CASCADE_INACTIVE(i)));
4047   }
4048
4049   /* dynamically adjust element properties according to game engine version */
4050   {
4051     static int ep_em_slippery_wall[] =
4052     {
4053       EL_STEELWALL,
4054       EL_WALL,
4055       EL_EXPANDABLE_WALL,
4056       EL_EXPANDABLE_WALL_HORIZONTAL,
4057       EL_EXPANDABLE_WALL_VERTICAL,
4058       EL_EXPANDABLE_WALL_ANY,
4059       -1
4060     };
4061
4062     /* special EM style gems behaviour */
4063     for (i = 0; ep_em_slippery_wall[i] != -1; i++)
4064       SET_PROPERTY(ep_em_slippery_wall[i], EP_EM_SLIPPERY_WALL,
4065                    level.em_slippery_gems);
4066
4067     /* "EL_EXPANDABLE_WALL_GROWING" wasn't slippery for EM gems in 2.0.1 */
4068     SET_PROPERTY(EL_EXPANDABLE_WALL_GROWING, EP_EM_SLIPPERY_WALL,
4069                  (level.em_slippery_gems &&
4070                   engine_version > VERSION_IDENT(2,0,1,0)));
4071   }
4072
4073   /* this is needed because some graphics depend on element properties */
4074   if (game_status == GAME_MODE_PLAYING)
4075     InitElementGraphicInfo();
4076 }
4077
4078 void InitElementPropertiesAfterLoading(int engine_version)
4079 {
4080   int i;
4081
4082   /* set some other uninitialized values of custom elements in older levels */
4083   if (engine_version < VERSION_IDENT(3,1,0,0))
4084   {
4085     for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
4086     {
4087       int element = EL_CUSTOM_START + i;
4088
4089       element_info[element].access_direction = MV_ALL_DIRECTIONS;
4090
4091       element_info[element].explosion_delay = 17;
4092       element_info[element].ignition_delay = 8;
4093     }
4094   }
4095 }
4096
4097 static void InitGlobal()
4098 {
4099   int i;
4100
4101   for (i = 0; i < MAX_NUM_ELEMENTS + 1; i++)
4102   {
4103     /* check if element_name_info entry defined for each element in "main.h" */
4104     if (i < MAX_NUM_ELEMENTS && element_name_info[i].token_name == NULL)
4105       Error(ERR_EXIT, "undefined 'element_name_info' entry for element %d", i);
4106
4107     element_info[i].token_name = element_name_info[i].token_name;
4108     element_info[i].class_name = element_name_info[i].class_name;
4109     element_info[i].editor_description=element_name_info[i].editor_description;
4110   }
4111
4112   global.autoplay_leveldir = NULL;
4113   global.convert_leveldir = NULL;
4114
4115   global.frames_per_second = 0;
4116   global.fps_slowdown = FALSE;
4117   global.fps_slowdown_factor = 1;
4118 }
4119
4120 void Execute_Command(char *command)
4121 {
4122   int i;
4123
4124   if (strEqual(command, "print graphicsinfo.conf"))
4125   {
4126     printf("# You can configure additional/alternative image files here.\n");
4127     printf("# (The entries below are default and therefore commented out.)\n");
4128     printf("\n");
4129     printf("%s\n", getFormattedSetupEntry("name", "Classic Graphics"));
4130     printf("\n");
4131     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
4132     printf("\n");
4133
4134     for (i = 0; image_config[i].token != NULL; i++)
4135       printf("# %s\n", getFormattedSetupEntry(image_config[i].token,
4136                                               image_config[i].value));
4137
4138     exit(0);
4139   }
4140   else if (strEqual(command, "print soundsinfo.conf"))
4141   {
4142     printf("# You can configure additional/alternative sound files here.\n");
4143     printf("# (The entries below are default and therefore commented out.)\n");
4144     printf("\n");
4145     printf("%s\n", getFormattedSetupEntry("name", "Classic Sounds"));
4146     printf("\n");
4147     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
4148     printf("\n");
4149
4150     for (i = 0; sound_config[i].token != NULL; i++)
4151       printf("# %s\n", getFormattedSetupEntry(sound_config[i].token,
4152                                               sound_config[i].value));
4153
4154     exit(0);
4155   }
4156   else if (strEqual(command, "print musicinfo.conf"))
4157   {
4158     printf("# You can configure additional/alternative music files here.\n");
4159     printf("# (The entries below are default and therefore commented out.)\n");
4160     printf("\n");
4161     printf("%s\n", getFormattedSetupEntry("name", "Classic Music"));
4162     printf("\n");
4163     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
4164     printf("\n");
4165
4166     for (i = 0; music_config[i].token != NULL; i++)
4167       printf("# %s\n", getFormattedSetupEntry(music_config[i].token,
4168                                               music_config[i].value));
4169
4170     exit(0);
4171   }
4172   else if (strEqual(command, "print editorsetup.conf"))
4173   {
4174     printf("# You can configure your personal editor element list here.\n");
4175     printf("# (The entries below are default and therefore commented out.)\n");
4176     printf("\n");
4177
4178     /* this is needed to be able to check element list for cascade elements */
4179     InitElementPropertiesStatic();
4180     InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
4181
4182     PrintEditorElementList();
4183
4184     exit(0);
4185   }
4186   else if (strEqual(command, "print helpanim.conf"))
4187   {
4188     printf("# You can configure different element help animations here.\n");
4189     printf("# (The entries below are default and therefore commented out.)\n");
4190     printf("\n");
4191
4192     for (i = 0; helpanim_config[i].token != NULL; i++)
4193     {
4194       printf("# %s\n", getFormattedSetupEntry(helpanim_config[i].token,
4195                                               helpanim_config[i].value));
4196
4197       if (strEqual(helpanim_config[i].token, "end"))
4198         printf("#\n");
4199     }
4200
4201     exit(0);
4202   }
4203   else if (strEqual(command, "print helptext.conf"))
4204   {
4205     printf("# You can configure different element help text here.\n");
4206     printf("# (The entries below are default and therefore commented out.)\n");
4207     printf("\n");
4208
4209     for (i = 0; helptext_config[i].token != NULL; i++)
4210       printf("# %s\n", getFormattedSetupEntry(helptext_config[i].token,
4211                                               helptext_config[i].value));
4212
4213     exit(0);
4214   }
4215   else if (strncmp(command, "dump level ", 11) == 0)
4216   {
4217     char *filename = &command[11];
4218
4219     if (!fileExists(filename))
4220       Error(ERR_EXIT, "cannot open file '%s'", filename);
4221
4222     LoadLevelFromFilename(&level, filename);
4223     DumpLevel(&level);
4224
4225     exit(0);
4226   }
4227   else if (strncmp(command, "dump tape ", 10) == 0)
4228   {
4229     char *filename = &command[10];
4230
4231     if (!fileExists(filename))
4232       Error(ERR_EXIT, "cannot open file '%s'", filename);
4233
4234     LoadTapeFromFilename(filename);
4235     DumpTape(&tape);
4236
4237     exit(0);
4238   }
4239   else if (strncmp(command, "autoplay ", 9) == 0)
4240   {
4241     char *str_ptr = getStringCopy(&command[9]); /* read command parameters */
4242
4243     while (*str_ptr != '\0')                    /* continue parsing string */
4244     {
4245       /* cut leading whitespace from string, replace it by string terminator */
4246       while (*str_ptr == ' ' || *str_ptr == '\t')
4247         *str_ptr++ = '\0';
4248
4249       if (*str_ptr == '\0')                     /* end of string reached */
4250         break;
4251
4252       if (global.autoplay_leveldir == NULL)     /* read level set string */
4253       {
4254         global.autoplay_leveldir = str_ptr;
4255         global.autoplay_all = TRUE;             /* default: play all tapes */
4256
4257         for (i = 0; i < MAX_TAPES_PER_SET; i++)
4258           global.autoplay_level[i] = FALSE;
4259       }
4260       else                                      /* read level number string */
4261       {
4262         int level_nr = atoi(str_ptr);           /* get level_nr value */
4263
4264         if (level_nr >= 0 && level_nr < MAX_TAPES_PER_SET)
4265           global.autoplay_level[level_nr] = TRUE;
4266
4267         global.autoplay_all = FALSE;
4268       }
4269
4270       /* advance string pointer to the next whitespace (or end of string) */
4271       while (*str_ptr != ' ' && *str_ptr != '\t' && *str_ptr != '\0')
4272         str_ptr++;
4273     }
4274   }
4275   else if (strncmp(command, "convert ", 8) == 0)
4276   {
4277     char *str_copy = getStringCopy(&command[8]);
4278     char *str_ptr = strchr(str_copy, ' ');
4279
4280     global.convert_leveldir = str_copy;
4281     global.convert_level_nr = -1;
4282
4283     if (str_ptr != NULL)                        /* level number follows */
4284     {
4285       *str_ptr++ = '\0';                        /* terminate leveldir string */
4286       global.convert_level_nr = atoi(str_ptr);  /* get level_nr value */
4287     }
4288   }
4289
4290 #if DEBUG
4291 #if defined(TARGET_SDL)
4292   else if (strEqual(command, "SDL_ListModes"))
4293   {
4294     SDL_Rect **modes;
4295     int i;
4296
4297     SDL_Init(SDL_INIT_VIDEO);
4298
4299     /* get available fullscreen/hardware modes */
4300     modes = SDL_ListModes(NULL, SDL_FULLSCREEN | SDL_HWSURFACE);
4301
4302     /* check if there are any modes available */
4303     if (modes == NULL)
4304     {
4305       printf("No modes available!\n");
4306
4307       exit(-1);
4308     }
4309
4310     /* check if our resolution is restricted */
4311     if (modes == (SDL_Rect **)-1)
4312     {
4313       printf("All resolutions available.\n");
4314     }
4315     else
4316     {
4317       printf("Available Modes:\n");
4318
4319       for(i = 0; modes[i]; i++)
4320         printf("  %d x %d\n", modes[i]->w, modes[i]->h);
4321     }
4322
4323     exit(0);
4324   }
4325 #endif
4326 #endif
4327
4328   else
4329   {
4330     Error(ERR_EXIT_HELP, "unrecognized command '%s'", command);
4331   }
4332 }
4333
4334 static void InitSetup()
4335 {
4336   LoadSetup();                                  /* global setup info */
4337
4338   /* set some options from setup file */
4339
4340   if (setup.options.verbose)
4341     options.verbose = TRUE;
4342 }
4343
4344 static void InitGameInfo()
4345 {
4346   game.restart_level = FALSE;
4347 }
4348
4349 static void InitPlayerInfo()
4350 {
4351   int i;
4352
4353   /* choose default local player */
4354   local_player = &stored_player[0];
4355
4356   for (i = 0; i < MAX_PLAYERS; i++)
4357     stored_player[i].connected = FALSE;
4358
4359   local_player->connected = TRUE;
4360 }
4361
4362 static void InitArtworkInfo()
4363 {
4364   LoadArtworkInfo();
4365 }
4366
4367 static char *get_string_in_brackets(char *string)
4368 {
4369   char *string_in_brackets = checked_malloc(strlen(string) + 3);
4370
4371   sprintf(string_in_brackets, "[%s]", string);
4372
4373   return string_in_brackets;
4374 }
4375
4376 static char *get_level_id_suffix(int id_nr)
4377 {
4378   char *id_suffix = checked_malloc(1 + 3 + 1);
4379
4380   if (id_nr < 0 || id_nr > 999)
4381     id_nr = 0;
4382
4383   sprintf(id_suffix, ".%03d", id_nr);
4384
4385   return id_suffix;
4386 }
4387
4388 #if 0
4389 static char *get_element_class_token(int element)
4390 {
4391   char *element_class_name = element_info[element].class_name;
4392   char *element_class_token = checked_malloc(strlen(element_class_name) + 3);
4393
4394   sprintf(element_class_token, "[%s]", element_class_name);
4395
4396   return element_class_token;
4397 }
4398
4399 static char *get_action_class_token(int action)
4400 {
4401   char *action_class_name = &element_action_info[action].suffix[1];
4402   char *action_class_token = checked_malloc(strlen(action_class_name) + 3);
4403
4404   sprintf(action_class_token, "[%s]", action_class_name);
4405
4406   return action_class_token;
4407 }
4408 #endif
4409
4410 static void InitArtworkConfig()
4411 {
4412   static char *image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS + 1];
4413   static char *sound_id_prefix[2 * MAX_NUM_ELEMENTS + 1];
4414   static char *music_id_prefix[NUM_MUSIC_PREFIXES + 1];
4415   static char *action_id_suffix[NUM_ACTIONS + 1];
4416   static char *direction_id_suffix[NUM_DIRECTIONS_FULL + 1];
4417   static char *special_id_suffix[NUM_SPECIAL_GFX_ARGS + 1];
4418   static char *level_id_suffix[MAX_LEVELS + 1];
4419   static char *dummy[1] = { NULL };
4420   static char *ignore_generic_tokens[] =
4421   {
4422     "name",
4423     "sort_priority",
4424     NULL
4425   };
4426   static char **ignore_image_tokens;
4427   static char **ignore_sound_tokens;
4428   static char **ignore_music_tokens;
4429   int num_ignore_generic_tokens;
4430   int num_ignore_image_tokens;
4431   int num_ignore_sound_tokens;
4432   int num_ignore_music_tokens;
4433   int i;
4434
4435   /* dynamically determine list of generic tokens to be ignored */
4436   num_ignore_generic_tokens = 0;
4437   for (i = 0; ignore_generic_tokens[i] != NULL; i++)
4438     num_ignore_generic_tokens++;
4439
4440   /* dynamically determine list of image tokens to be ignored */
4441   num_ignore_image_tokens = num_ignore_generic_tokens;
4442   for (i = 0; image_config_vars[i].token != NULL; i++)
4443     num_ignore_image_tokens++;
4444   ignore_image_tokens =
4445     checked_malloc((num_ignore_image_tokens + 1) * sizeof(char *));
4446   for (i = 0; i < num_ignore_generic_tokens; i++)
4447     ignore_image_tokens[i] = ignore_generic_tokens[i];
4448   for (i = 0; i < num_ignore_image_tokens - num_ignore_generic_tokens; i++)
4449     ignore_image_tokens[num_ignore_generic_tokens + i] =
4450       image_config_vars[i].token;
4451   ignore_image_tokens[num_ignore_image_tokens] = NULL;
4452
4453   /* dynamically determine list of sound tokens to be ignored */
4454   num_ignore_sound_tokens = num_ignore_generic_tokens;
4455   ignore_sound_tokens =
4456     checked_malloc((num_ignore_sound_tokens + 1) * sizeof(char *));
4457   for (i = 0; i < num_ignore_generic_tokens; i++)
4458     ignore_sound_tokens[i] = ignore_generic_tokens[i];
4459   ignore_sound_tokens[num_ignore_sound_tokens] = NULL;
4460
4461   /* dynamically determine list of music tokens to be ignored */
4462   num_ignore_music_tokens = num_ignore_generic_tokens;
4463   ignore_music_tokens =
4464     checked_malloc((num_ignore_music_tokens + 1) * sizeof(char *));
4465   for (i = 0; i < num_ignore_generic_tokens; i++)
4466     ignore_music_tokens[i] = ignore_generic_tokens[i];
4467   ignore_music_tokens[num_ignore_music_tokens] = NULL;
4468
4469   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
4470     image_id_prefix[i] = element_info[i].token_name;
4471   for (i = 0; i < NUM_FONTS; i++)
4472     image_id_prefix[MAX_NUM_ELEMENTS + i] = font_info[i].token_name;
4473   image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS] = NULL;
4474
4475   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
4476     sound_id_prefix[i] = element_info[i].token_name;
4477   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
4478     sound_id_prefix[MAX_NUM_ELEMENTS + i] =
4479       get_string_in_brackets(element_info[i].class_name);
4480   sound_id_prefix[2 * MAX_NUM_ELEMENTS] = NULL;
4481
4482   for (i = 0; i < NUM_MUSIC_PREFIXES; i++)
4483     music_id_prefix[i] = music_prefix_info[i].prefix;
4484   music_id_prefix[NUM_MUSIC_PREFIXES] = NULL;
4485
4486   for (i = 0; i < NUM_ACTIONS; i++)
4487     action_id_suffix[i] = element_action_info[i].suffix;
4488   action_id_suffix[NUM_ACTIONS] = NULL;
4489
4490   for (i = 0; i < NUM_DIRECTIONS_FULL; i++)
4491     direction_id_suffix[i] = element_direction_info[i].suffix;
4492   direction_id_suffix[NUM_DIRECTIONS_FULL] = NULL;
4493
4494   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
4495     special_id_suffix[i] = special_suffix_info[i].suffix;
4496   special_id_suffix[NUM_SPECIAL_GFX_ARGS] = NULL;
4497
4498   for (i = 0; i < MAX_LEVELS; i++)
4499     level_id_suffix[i] = get_level_id_suffix(i);
4500   level_id_suffix[MAX_LEVELS] = NULL;
4501
4502   InitImageList(image_config, NUM_IMAGE_FILES, image_config_suffix,
4503                 image_id_prefix, action_id_suffix, direction_id_suffix,
4504                 special_id_suffix, ignore_image_tokens);
4505   InitSoundList(sound_config, NUM_SOUND_FILES, sound_config_suffix,
4506                 sound_id_prefix, action_id_suffix, dummy,
4507                 special_id_suffix, ignore_sound_tokens);
4508   InitMusicList(music_config, NUM_MUSIC_FILES, music_config_suffix,
4509                 music_id_prefix, special_id_suffix, level_id_suffix,
4510                 dummy, ignore_music_tokens);
4511 }
4512
4513 static void InitMixer()
4514 {
4515   OpenAudio();
4516   StartMixer();
4517 }
4518
4519 void InitGfx()
4520 {
4521   char *filename_font_initial = NULL;
4522   Bitmap *bitmap_font_initial = NULL;
4523   int font_height;
4524   int i, j;
4525
4526   /* determine settings for initial font (for displaying startup messages) */
4527   for (i = 0; image_config[i].token != NULL; i++)
4528   {
4529     for (j = 0; j < NUM_INITIAL_FONTS; j++)
4530     {
4531       char font_token[128];
4532       int len_font_token;
4533
4534       sprintf(font_token, "%s_%d", CONFIG_TOKEN_FONT_INITIAL, j + 1);
4535       len_font_token = strlen(font_token);
4536
4537       if (strEqual(image_config[i].token, font_token))
4538         filename_font_initial = image_config[i].value;
4539       else if (strlen(image_config[i].token) > len_font_token &&
4540                strncmp(image_config[i].token, font_token, len_font_token) == 0)
4541       {
4542         if (strEqual(&image_config[i].token[len_font_token], ".x"))
4543           font_initial[j].src_x = atoi(image_config[i].value);
4544         else if (strEqual(&image_config[i].token[len_font_token], ".y"))
4545           font_initial[j].src_y = atoi(image_config[i].value);
4546         else if (strEqual(&image_config[i].token[len_font_token], ".width"))
4547           font_initial[j].width = atoi(image_config[i].value);
4548         else if (strEqual(&image_config[i].token[len_font_token],".height"))
4549           font_initial[j].height = atoi(image_config[i].value);
4550       }
4551     }
4552   }
4553
4554   for (j = 0; j < NUM_INITIAL_FONTS; j++)
4555   {
4556     font_initial[j].num_chars = DEFAULT_NUM_CHARS_PER_FONT;
4557     font_initial[j].num_chars_per_line = DEFAULT_NUM_CHARS_PER_LINE;
4558   }
4559
4560   if (filename_font_initial == NULL)    /* should not happen */
4561     Error(ERR_EXIT, "cannot get filename for '%s'", CONFIG_TOKEN_FONT_INITIAL);
4562
4563   /* create additional image buffers for double-buffering and cross-fading */
4564   bitmap_db_cross = CreateBitmap(WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH);
4565   bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
4566   bitmap_db_panel = CreateBitmap(DXSIZE, DYSIZE, DEFAULT_DEPTH);
4567   bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
4568
4569   /* initialize screen properties */
4570   InitGfxFieldInfo(SX, SY, SXSIZE, SYSIZE,
4571                    REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE,
4572                    bitmap_db_field);
4573   InitGfxDoor1Info(DX, DY, DXSIZE, DYSIZE);
4574   InitGfxDoor2Info(VX, VY, VXSIZE, VYSIZE);
4575   InitGfxScrollbufferInfo(FXSIZE, FYSIZE);
4576
4577   bitmap_font_initial = LoadCustomImage(filename_font_initial);
4578
4579   for (j = 0; j < NUM_INITIAL_FONTS; j++)
4580     font_initial[j].bitmap = bitmap_font_initial;
4581
4582   InitFontGraphicInfo();
4583
4584   font_height = getFontHeight(FC_RED);
4585
4586 #if 1
4587   DrawInitText(getWindowTitleString(), 20, FC_YELLOW);
4588 #else
4589   DrawInitText(getProgramInitString(), 20, FC_YELLOW);
4590 #endif
4591   DrawInitText(PROGRAM_COPYRIGHT_STRING, 50, FC_RED);
4592   DrawInitText(PROGRAM_WEBSITE_STRING, WIN_YSIZE - 20 - font_height, FC_RED);
4593
4594   DrawInitText("Loading graphics", 120, FC_GREEN);
4595 }
4596
4597 void RedrawBackground()
4598 {
4599   BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, backbuffer,
4600              0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
4601
4602   redraw_mask = REDRAW_ALL;
4603 }
4604
4605 void InitGfxBackground()
4606 {
4607   int x, y;
4608
4609   fieldbuffer = bitmap_db_field;
4610   SetDrawtoField(DRAW_BACKBUFFER);
4611
4612   RedrawBackground();
4613
4614   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
4615   ClearRectangle(bitmap_db_door, 0, 0, 3 * DXSIZE, DYSIZE + VYSIZE);
4616
4617   for (x = 0; x < MAX_BUF_XSIZE; x++)
4618     for (y = 0; y < MAX_BUF_YSIZE; y++)
4619       redraw[x][y] = 0;
4620   redraw_tiles = 0;
4621   redraw_mask = REDRAW_ALL;
4622 }
4623
4624 static void InitLevelInfo()
4625 {
4626   LoadLevelInfo();                              /* global level info */
4627   LoadLevelSetup_LastSeries();                  /* last played series info */
4628   LoadLevelSetup_SeriesInfo();                  /* last played level info */
4629 }
4630
4631 void InitLevelArtworkInfo()
4632 {
4633   LoadLevelArtworkInfo();
4634 }
4635
4636 static void InitImages()
4637 {
4638   setLevelArtworkDir(artwork.gfx_first);
4639
4640 #if 0
4641   printf("::: InitImages for '%s' ['%s', '%s'] ['%s', '%s']\n",
4642          leveldir_current->identifier,
4643          artwork.gfx_current_identifier,
4644          artwork.gfx_current->identifier,
4645          leveldir_current->graphics_set,
4646          leveldir_current->graphics_path);
4647 #endif
4648
4649   ReloadCustomImages();
4650
4651   LoadCustomElementDescriptions();
4652   LoadSpecialMenuDesignSettings();
4653
4654   ReinitializeGraphics();
4655 }
4656
4657 static void InitSound(char *identifier)
4658 {
4659   if (identifier == NULL)
4660     identifier = artwork.snd_current->identifier;
4661
4662   /* set artwork path to send it to the sound server process */
4663   setLevelArtworkDir(artwork.snd_first);
4664
4665   InitReloadCustomSounds(identifier);
4666   ReinitializeSounds();
4667 }
4668
4669 static void InitMusic(char *identifier)
4670 {
4671   if (identifier == NULL)
4672     identifier = artwork.mus_current->identifier;
4673
4674   /* set artwork path to send it to the sound server process */
4675   setLevelArtworkDir(artwork.mus_first);
4676
4677   InitReloadCustomMusic(identifier);
4678   ReinitializeMusic();
4679 }
4680
4681 void InitNetworkServer()
4682 {
4683 #if defined(NETWORK_AVALIABLE)
4684   int nr_wanted;
4685 #endif
4686
4687   if (!options.network)
4688     return;
4689
4690 #if defined(NETWORK_AVALIABLE)
4691   nr_wanted = Request("Choose player", REQ_PLAYER | REQ_STAY_CLOSED);
4692
4693   if (!ConnectToServer(options.server_host, options.server_port))
4694     Error(ERR_EXIT, "cannot connect to network game server");
4695
4696   SendToServer_PlayerName(setup.player_name);
4697   SendToServer_ProtocolVersion();
4698
4699   if (nr_wanted)
4700     SendToServer_NrWanted(nr_wanted);
4701 #endif
4702 }
4703
4704 static char *getNewArtworkIdentifier(int type)
4705 {
4706   static char *leveldir_current_identifier[3] = { NULL, NULL, NULL };
4707   static boolean last_override_level_artwork[3] = { FALSE, FALSE, FALSE };
4708   static boolean last_has_level_artwork_set[3] = { FALSE, FALSE, FALSE };
4709   static boolean initialized[3] = { FALSE, FALSE, FALSE };
4710   TreeInfo *artwork_first_node = ARTWORK_FIRST_NODE(artwork, type);
4711   boolean setup_override_artwork = SETUP_OVERRIDE_ARTWORK(setup, type);
4712   char *setup_artwork_set = SETUP_ARTWORK_SET(setup, type);
4713   char *leveldir_identifier = leveldir_current->identifier;
4714 #if 1
4715   /* !!! setLevelArtworkDir() should be moved to an earlier stage !!! */
4716   char *leveldir_artwork_set = setLevelArtworkDir(artwork_first_node);
4717 #else
4718   char *leveldir_artwork_set = LEVELDIR_ARTWORK_SET(leveldir_current, type);
4719 #endif
4720   boolean has_level_artwork_set = (leveldir_artwork_set != NULL);
4721   char *artwork_current_identifier;
4722   char *artwork_new_identifier = NULL;  /* default: nothing has changed */
4723
4724   /* leveldir_current may be invalid (level group, parent link) */
4725   if (!validLevelSeries(leveldir_current))
4726     return NULL;
4727
4728   /* 1st step: determine artwork set to be activated in descending order:
4729      --------------------------------------------------------------------
4730      1. setup artwork (when configured to override everything else)
4731      2. artwork set configured in "levelinfo.conf" of current level set
4732         (artwork in level directory will have priority when loading later)
4733      3. artwork in level directory (stored in artwork sub-directory)
4734      4. setup artwork (currently configured in setup menu) */
4735
4736   if (setup_override_artwork)
4737     artwork_current_identifier = setup_artwork_set;
4738   else if (leveldir_artwork_set != NULL)
4739     artwork_current_identifier = leveldir_artwork_set;
4740   else if (getTreeInfoFromIdentifier(artwork_first_node, leveldir_identifier))
4741     artwork_current_identifier = leveldir_identifier;
4742   else
4743     artwork_current_identifier = setup_artwork_set;
4744
4745
4746   /* 2nd step: check if it is really needed to reload artwork set
4747      ------------------------------------------------------------ */
4748
4749 #if 0
4750   if (type == ARTWORK_TYPE_GRAPHICS)
4751     printf("::: 0: '%s' ['%s', '%s'] ['%s' ('%s')]\n",
4752            artwork_new_identifier,
4753            ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4754            artwork_current_identifier,
4755            leveldir_current->graphics_set,
4756            leveldir_current->identifier);
4757 #endif
4758
4759   /* ---------- reload if level set and also artwork set has changed ------- */
4760   if (leveldir_current_identifier[type] != leveldir_identifier &&
4761       (last_has_level_artwork_set[type] || has_level_artwork_set))
4762     artwork_new_identifier = artwork_current_identifier;
4763
4764   leveldir_current_identifier[type] = leveldir_identifier;
4765   last_has_level_artwork_set[type] = has_level_artwork_set;
4766
4767 #if 0
4768   if (type == ARTWORK_TYPE_GRAPHICS)
4769     printf("::: 1: '%s'\n", artwork_new_identifier);
4770 #endif
4771
4772   /* ---------- reload if "override artwork" setting has changed ----------- */
4773   if (last_override_level_artwork[type] != setup_override_artwork)
4774     artwork_new_identifier = artwork_current_identifier;
4775
4776   last_override_level_artwork[type] = setup_override_artwork;
4777
4778 #if 0
4779   if (type == ARTWORK_TYPE_GRAPHICS)
4780     printf("::: 2: '%s'\n", artwork_new_identifier);
4781 #endif
4782
4783   /* ---------- reload if current artwork identifier has changed ----------- */
4784   if (!strEqual(ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4785                 artwork_current_identifier))
4786     artwork_new_identifier = artwork_current_identifier;
4787
4788   *(ARTWORK_CURRENT_IDENTIFIER_PTR(artwork, type))= artwork_current_identifier;
4789
4790 #if 0
4791   if (type == ARTWORK_TYPE_GRAPHICS)
4792     printf("::: 3: '%s'\n", artwork_new_identifier);
4793 #endif
4794
4795   /* ---------- do not reload directly after starting ---------------------- */
4796   if (!initialized[type])
4797     artwork_new_identifier = NULL;
4798
4799   initialized[type] = TRUE;
4800
4801 #if 0
4802   if (type == ARTWORK_TYPE_GRAPHICS)
4803     printf("::: 4: '%s'\n", artwork_new_identifier);
4804 #endif
4805
4806 #if 0
4807   if (type == ARTWORK_TYPE_GRAPHICS)
4808     printf("CHECKING OLD/NEW GFX:\n- OLD: %s\n- NEW: %s ['%s', '%s'] ['%s']\n",
4809            artwork.gfx_current_identifier, artwork_current_identifier,
4810            artwork.gfx_current->identifier, leveldir_current->graphics_set,
4811            artwork_new_identifier);
4812 #endif
4813
4814   return artwork_new_identifier;
4815 }
4816
4817 void ReloadCustomArtwork(int force_reload)
4818 {
4819   char *gfx_new_identifier;
4820   char *snd_new_identifier;
4821   char *mus_new_identifier;
4822   boolean force_reload_gfx = (force_reload & (1 << ARTWORK_TYPE_GRAPHICS));
4823   boolean force_reload_snd = (force_reload & (1 << ARTWORK_TYPE_SOUNDS));
4824   boolean force_reload_mus = (force_reload & (1 << ARTWORK_TYPE_MUSIC));
4825   boolean redraw_screen = FALSE;
4826
4827   force_reload_gfx |= AdjustGraphicsForEMC();
4828
4829   gfx_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_GRAPHICS);
4830   snd_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_SOUNDS);
4831   mus_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_MUSIC);
4832
4833   if (gfx_new_identifier != NULL || force_reload_gfx)
4834   {
4835 #if 0
4836     printf("RELOADING GRAPHICS '%s' -> '%s' ['%s', '%s']\n",
4837            artwork.gfx_current_identifier,
4838            gfx_new_identifier,
4839            artwork.gfx_current->identifier,
4840            leveldir_current->graphics_set);
4841 #endif
4842
4843     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4844
4845     InitImages();
4846
4847     redraw_screen = TRUE;
4848   }
4849
4850   if (snd_new_identifier != NULL || force_reload_snd)
4851   {
4852     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4853
4854     InitSound(snd_new_identifier);
4855
4856     redraw_screen = TRUE;
4857   }
4858
4859   if (mus_new_identifier != NULL || force_reload_mus)
4860   {
4861     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4862
4863     InitMusic(mus_new_identifier);
4864
4865     redraw_screen = TRUE;
4866   }
4867
4868   if (redraw_screen)
4869   {
4870     RedrawBackground();
4871
4872     /* force redraw of (open or closed) door graphics */
4873     SetDoorState(DOOR_OPEN_ALL);
4874     CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
4875   }
4876 }
4877
4878 void KeyboardAutoRepeatOffUnlessAutoplay()
4879 {
4880   if (global.autoplay_leveldir == NULL)
4881     KeyboardAutoRepeatOff();
4882 }
4883
4884
4885 /* ========================================================================= */
4886 /* OpenAll()                                                                 */
4887 /* ========================================================================= */
4888
4889 void OpenAll()
4890 {
4891   InitGlobal();                 /* initialize some global variables */
4892
4893   if (options.execute_command)
4894     Execute_Command(options.execute_command);
4895
4896   if (options.serveronly)
4897   {
4898 #if defined(PLATFORM_UNIX)
4899     NetworkServer(options.server_port, options.serveronly);
4900 #else
4901     Error(ERR_WARN, "networking only supported in Unix version");
4902 #endif
4903
4904     exit(0);                    /* never reached, server loops forever */
4905   }
4906
4907   InitSetup();
4908
4909   InitGameInfo();
4910   InitPlayerInfo();
4911   InitArtworkInfo();            /* needed before loading gfx, sound & music */
4912   InitArtworkConfig();          /* needed before forking sound child process */
4913   InitMixer();
4914
4915   InitCounter();
4916
4917   InitRND(NEW_RANDOMIZE);
4918   InitSimpleRandom(NEW_RANDOMIZE);
4919
4920   InitJoysticks();
4921
4922   InitVideoDisplay();
4923   InitVideoBuffer(WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH, setup.fullscreen);
4924
4925   InitEventFilter(FilterMouseMotionEvents);
4926
4927   InitElementPropertiesStatic();
4928   InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
4929
4930   InitGfx();
4931
4932   // debug_print_timestamp(0, "INIT");
4933   InitLevelInfo();
4934   // debug_print_timestamp(0, "TIME InitLevelInfo:        ");
4935   InitLevelArtworkInfo();
4936   // debug_print_timestamp(0, "TIME InitLevelArtworkInfo: ");
4937
4938   InitImages();                 /* needs to know current level directory */
4939   InitSound(NULL);              /* needs to know current level directory */
4940   InitMusic(NULL);              /* needs to know current level directory */
4941
4942   InitGfxBackground();
4943
4944 #if 1
4945   em_open_all();
4946 #endif
4947
4948   if (global.autoplay_leveldir)
4949   {
4950     AutoPlayTape();
4951     return;
4952   }
4953   else if (global.convert_leveldir)
4954   {
4955     ConvertLevels();
4956     return;
4957   }
4958
4959   game_status = GAME_MODE_MAIN;
4960
4961   DrawMainMenu();
4962
4963   InitNetworkServer();
4964 }
4965
4966 void CloseAllAndExit(int exit_value)
4967 {
4968   StopSounds();
4969   FreeAllSounds();
4970   FreeAllMusic();
4971   CloseAudio();         /* called after freeing sounds (needed for SDL) */
4972
4973 #if 1
4974   em_close_all();
4975 #endif
4976
4977   FreeAllImages();
4978
4979 #if defined(TARGET_SDL)
4980   if (network_server)   /* terminate network server */
4981     SDL_KillThread(server_thread);
4982 #endif
4983
4984   CloseVideoDisplay();
4985   ClosePlatformDependentStuff();
4986
4987   if (exit_value != 0)
4988     NotifyUserAboutErrorFile();
4989
4990   exit(exit_value);
4991 }