src/init.c

   1 /***********************************************************
   2 * Rocks'n'Diamonds -- McDuffin Strikes Back!               *
   3 *----------------------------------------------------------*
   4 * (c) 1995-2002 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_MOLE,
  71     EL_MOLE_LEFT,               EL_MOLE_RIGHT,
  72     EL_MOLE_UP,                 EL_MOLE_DOWN
  73   },
  74   {
  75     -1,
  76     -1, -1, -1, -1
  77   }
  78 };
  79
  80 void FreeGadgets()
  81 {
  82   FreeLevelEditorGadgets();
  83   FreeGameButtons();
  84   FreeTapeButtons();
  85   FreeToolButtons();
  86   FreeScreenGadgets();
  87 }
  88
  89 void InitGadgets()
  90 {
  91   static boolean gadgets_initialized = FALSE;
  92
  93   if (gadgets_initialized)
  94     FreeGadgets();
  95
  96   CreateLevelEditorGadgets();
  97   CreateGameButtons();
  98   CreateTapeButtons();
  99   CreateToolButtons();
 100   CreateScreenGadgets();
 101
 102   gadgets_initialized = TRUE;
 103 }
 104
 105 inline void InitElementSmallImagesScaledUp(int graphic)
 106 {
 107   CreateImageWithSmallImages(graphic, graphic_info[graphic].scale_up_factor);
 108 }
 109
 110 void InitElementSmallImages()
 111 {
 112   static int special_graphics[] =
 113   {
 114     IMG_EDITOR_ELEMENT_BORDER,
 115     IMG_EDITOR_ELEMENT_BORDER_INPUT,
 116     IMG_EDITOR_CASCADE_LIST,
 117     IMG_EDITOR_CASCADE_LIST_ACTIVE,
 118     -1
 119   };
 120   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 121   int num_property_mappings = getImageListPropertyMappingSize();
 122   int i;
 123
 124   /* initialize normal images from static configuration */
 125   for (i = 0; element_to_graphic[i].element > -1; i++)
 126     InitElementSmallImagesScaledUp(element_to_graphic[i].graphic);
 127
 128   /* initialize special images from static configuration */
 129   for (i = 0; element_to_special_graphic[i].element > -1; i++)
 130     InitElementSmallImagesScaledUp(element_to_special_graphic[i].graphic);
 131
 132   /* initialize images from dynamic configuration (may be elements or other) */
 133   for (i = 0; i < num_property_mappings; i++)
 134     InitElementSmallImagesScaledUp(property_mapping[i].artwork_index);
 135
 136   /* initialize special images from above list (non-element images) */
 137   for (i = 0; special_graphics[i] > -1; i++)
 138     InitElementSmallImagesScaledUp(special_graphics[i]);
 139 }
 140
 141 #if 1
 142 /* !!! FIX THIS (CHANGE TO USING NORMAL ELEMENT GRAPHIC DEFINITIONS) !!! */
 143 void SetBitmaps_EM(Bitmap **em_bitmap)
 144 {
 145   em_bitmap[0] = graphic_info[IMG_EMC_OBJECT].bitmap;
 146   em_bitmap[1] = graphic_info[IMG_EMC_SPRITE].bitmap;
 147 }
 148 #endif
 149
 150 static int getFontBitmapID(int font_nr)
 151 {
 152   int special = -1;
 153
 154   if (game_status >= GAME_MODE_MAIN && game_status <= GAME_MODE_PSEUDO_PREVIEW)
 155     special = game_status;
 156   else if (game_status == GAME_MODE_PSEUDO_TYPENAME)
 157     special = GFX_SPECIAL_ARG_MAIN;
 158   else if (game_status == GAME_MODE_PLAYING)
 159     special = GFX_SPECIAL_ARG_DOOR;
 160
 161   if (special != -1)
 162     return font_info[font_nr].special_bitmap_id[special];
 163   else
 164     return font_nr;
 165 }
 166
 167 void InitFontGraphicInfo()
 168 {
 169   static struct FontBitmapInfo *font_bitmap_info = NULL;
 170   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 171   int num_property_mappings = getImageListPropertyMappingSize();
 172   int num_font_bitmaps = NUM_FONTS;
 173   int i, j;
 174
 175   if (graphic_info == NULL)             /* still at startup phase */
 176   {
 177     InitFontInfo(font_initial, NUM_INITIAL_FONTS, getFontBitmapID);
 178
 179     return;
 180   }
 181
 182   /* ---------- initialize font graphic definitions ---------- */
 183
 184   /* always start with reliable default values (normal font graphics) */
 185   for (i = 0; i < NUM_FONTS; i++)
 186     font_info[i].graphic = IMG_FONT_INITIAL_1;
 187
 188   /* initialize normal font/graphic mapping from static configuration */
 189   for (i = 0; font_to_graphic[i].font_nr > -1; i++)
 190   {
 191     int font_nr = font_to_graphic[i].font_nr;
 192     int special = font_to_graphic[i].special;
 193     int graphic = font_to_graphic[i].graphic;
 194
 195     if (special != -1)
 196       continue;
 197
 198     font_info[font_nr].graphic = graphic;
 199   }
 200
 201   /* always start with reliable default values (special font graphics) */
 202   for (i = 0; i < NUM_FONTS; i++)
 203   {
 204     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 205     {
 206       font_info[i].special_graphic[j] = font_info[i].graphic;
 207       font_info[i].special_bitmap_id[j] = i;
 208     }
 209   }
 210
 211   /* initialize special font/graphic mapping from static configuration */
 212   for (i = 0; font_to_graphic[i].font_nr > -1; i++)
 213   {
 214     int font_nr      = font_to_graphic[i].font_nr;
 215     int special      = font_to_graphic[i].special;
 216     int graphic      = font_to_graphic[i].graphic;
 217     int base_graphic = font2baseimg(font_nr);
 218
 219     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 220     {
 221       boolean base_redefined =
 222         getImageListEntryFromImageID(base_graphic)->redefined;
 223       boolean special_redefined =
 224         getImageListEntryFromImageID(graphic)->redefined;
 225
 226       /* if the base font ("font.title_1", for example) has been redefined,
 227          but not the special font ("font.title_1.LEVELS", for example), do not
 228          use an existing (in this case considered obsolete) special font
 229          anymore, but use the automatically determined default font */
 230       if (base_redefined && !special_redefined)
 231         continue;
 232
 233       font_info[font_nr].special_graphic[special] = graphic;
 234       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
 235       num_font_bitmaps++;
 236     }
 237   }
 238
 239   /* initialize special element/graphic mapping from dynamic configuration */
 240   for (i = 0; i < num_property_mappings; i++)
 241   {
 242     int font_nr = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
 243     int special = property_mapping[i].ext3_index;
 244     int graphic = property_mapping[i].artwork_index;
 245
 246     if (font_nr < 0)
 247       continue;
 248
 249     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 250     {
 251       font_info[font_nr].special_graphic[special] = graphic;
 252       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
 253       num_font_bitmaps++;
 254     }
 255   }
 256
 257   /* ---------- initialize font bitmap array ---------- */
 258
 259   if (font_bitmap_info != NULL)
 260     FreeFontInfo(font_bitmap_info);
 261
 262   font_bitmap_info =
 263     checked_calloc(num_font_bitmaps * sizeof(struct FontBitmapInfo));
 264
 265   /* ---------- initialize font bitmap definitions ---------- */
 266
 267   for (i = 0; i < NUM_FONTS; i++)
 268   {
 269     if (i < NUM_INITIAL_FONTS)
 270     {
 271       font_bitmap_info[i] = font_initial[i];
 272       continue;
 273     }
 274
 275     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 276     {
 277       int font_bitmap_id = font_info[i].special_bitmap_id[j];
 278       int graphic = font_info[i].special_graphic[j];
 279
 280       /* set 'graphic_info' for font entries, if uninitialized (guessed) */
 281       if (graphic_info[graphic].anim_frames < MIN_NUM_CHARS_PER_FONT)
 282       {
 283         graphic_info[graphic].anim_frames = DEFAULT_NUM_CHARS_PER_FONT;
 284         graphic_info[graphic].anim_frames_per_line= DEFAULT_NUM_CHARS_PER_LINE;
 285       }
 286
 287       /* copy font relevant information from graphics information */
 288       font_bitmap_info[font_bitmap_id].bitmap = graphic_info[graphic].bitmap;
 289       font_bitmap_info[font_bitmap_id].src_x  = graphic_info[graphic].src_x;
 290       font_bitmap_info[font_bitmap_id].src_y  = graphic_info[graphic].src_y;
 291       font_bitmap_info[font_bitmap_id].width  = graphic_info[graphic].width;
 292       font_bitmap_info[font_bitmap_id].height = graphic_info[graphic].height;
 293       font_bitmap_info[font_bitmap_id].draw_x = graphic_info[graphic].draw_x;
 294       font_bitmap_info[font_bitmap_id].draw_y = graphic_info[graphic].draw_y;
 295
 296       font_bitmap_info[font_bitmap_id].num_chars =
 297         graphic_info[graphic].anim_frames;
 298       font_bitmap_info[font_bitmap_id].num_chars_per_line =
 299         graphic_info[graphic].anim_frames_per_line;
 300     }
 301   }
 302
 303   InitFontInfo(font_bitmap_info, num_font_bitmaps, getFontBitmapID);
 304 }
 305
 306 void InitElementGraphicInfo()
 307 {
 308   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 309   int num_property_mappings = getImageListPropertyMappingSize();
 310   int i, act, dir;
 311
 312   if (graphic_info == NULL)             /* still at startup phase */
 313     return;
 314
 315   /* set values to -1 to identify later as "uninitialized" values */
 316   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 317   {
 318     for (act = 0; act < NUM_ACTIONS; act++)
 319     {
 320       element_info[i].graphic[act] = -1;
 321       element_info[i].crumbled[act] = -1;
 322
 323       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 324       {
 325         element_info[i].direction_graphic[act][dir] = -1;
 326         element_info[i].direction_crumbled[act][dir] = -1;
 327       }
 328     }
 329   }
 330
 331   /* initialize normal element/graphic mapping from static configuration */
 332   for (i = 0; element_to_graphic[i].element > -1; i++)
 333   {
 334     int element      = element_to_graphic[i].element;
 335     int action       = element_to_graphic[i].action;
 336     int direction    = element_to_graphic[i].direction;
 337     boolean crumbled = element_to_graphic[i].crumbled;
 338     int graphic      = element_to_graphic[i].graphic;
 339     int base_graphic = el2baseimg(element);
 340
 341     if (graphic_info[graphic].bitmap == NULL)
 342       continue;
 343
 344     if ((action > -1 || direction > -1 || crumbled == TRUE) &&
 345         base_graphic != -1)
 346     {
 347       boolean base_redefined =
 348         getImageListEntryFromImageID(base_graphic)->redefined;
 349       boolean act_dir_redefined =
 350         getImageListEntryFromImageID(graphic)->redefined;
 351
 352       /* if the base graphic ("emerald", for example) has been redefined,
 353          but not the action graphic ("emerald.falling", for example), do not
 354          use an existing (in this case considered obsolete) action graphic
 355          anymore, but use the automatically determined default graphic */
 356       if (base_redefined && !act_dir_redefined)
 357         continue;
 358     }
 359
 360     if (action < 0)
 361       action = ACTION_DEFAULT;
 362
 363     if (crumbled)
 364     {
 365       if (direction > -1)
 366         element_info[element].direction_crumbled[action][direction] = graphic;
 367       else
 368         element_info[element].crumbled[action] = graphic;
 369     }
 370     else
 371     {
 372       if (direction > -1)
 373         element_info[element].direction_graphic[action][direction] = graphic;
 374       else
 375         element_info[element].graphic[action] = graphic;
 376     }
 377   }
 378
 379   /* initialize normal element/graphic mapping from dynamic configuration */
 380   for (i = 0; i < num_property_mappings; i++)
 381   {
 382     int element   = property_mapping[i].base_index;
 383     int action    = property_mapping[i].ext1_index;
 384     int direction = property_mapping[i].ext2_index;
 385     int special   = property_mapping[i].ext3_index;
 386     int graphic   = property_mapping[i].artwork_index;
 387     boolean crumbled = FALSE;
 388
 389     if (special == GFX_SPECIAL_ARG_CRUMBLED)
 390     {
 391       special = -1;
 392       crumbled = TRUE;
 393     }
 394
 395     if (graphic_info[graphic].bitmap == NULL)
 396       continue;
 397
 398     if (element >= MAX_NUM_ELEMENTS || special != -1)
 399       continue;
 400
 401     if (action < 0)
 402       action = ACTION_DEFAULT;
 403
 404     if (crumbled)
 405     {
 406       if (direction < 0)
 407         for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 408           element_info[element].direction_crumbled[action][dir] = -1;
 409
 410       if (direction > -1)
 411         element_info[element].direction_crumbled[action][direction] = graphic;
 412       else
 413         element_info[element].crumbled[action] = graphic;
 414     }
 415     else
 416     {
 417       if (direction < 0)
 418         for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 419           element_info[element].direction_graphic[action][dir] = -1;
 420
 421       if (direction > -1)
 422         element_info[element].direction_graphic[action][direction] = graphic;
 423       else
 424         element_info[element].graphic[action] = graphic;
 425     }
 426   }
 427
 428   /* now copy all graphics that are defined to be cloned from other graphics */
 429   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 430   {
 431     int graphic = element_info[i].graphic[ACTION_DEFAULT];
 432     int crumbled_like, diggable_like;
 433
 434     if (graphic == -1)
 435       continue;
 436
 437     crumbled_like = graphic_info[graphic].crumbled_like;
 438     diggable_like = graphic_info[graphic].diggable_like;
 439
 440     if (crumbled_like != -1 && element_info[i].crumbled[ACTION_DEFAULT] == -1)
 441     {
 442       for (act = 0; act < NUM_ACTIONS; act++)
 443         element_info[i].crumbled[act] =
 444           element_info[crumbled_like].crumbled[act];
 445       for (act = 0; act < NUM_ACTIONS; act++)
 446         for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 447           element_info[i].direction_crumbled[act][dir] =
 448             element_info[crumbled_like].direction_crumbled[act][dir];
 449     }
 450
 451     if (diggable_like != -1 && element_info[i].graphic[ACTION_DIGGING] == -1)
 452     {
 453       element_info[i].graphic[ACTION_DIGGING] =
 454         element_info[diggable_like].graphic[ACTION_DIGGING];
 455       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 456         element_info[i].direction_graphic[ACTION_DIGGING][dir] =
 457           element_info[diggable_like].direction_graphic[ACTION_DIGGING][dir];
 458     }
 459   }
 460
 461 #if 1
 462   /* set hardcoded definitions for some runtime elements without graphic */
 463   element_info[EL_AMOEBA_TO_DIAMOND].graphic[ACTION_DEFAULT] = IMG_AMOEBA_DEAD;
 464 #endif
 465
 466 #if 1
 467   /* set hardcoded definitions for some internal elements without graphic */
 468   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 469   {
 470     if (IS_EDITOR_CASCADE_INACTIVE(i))
 471       element_info[i].graphic[ACTION_DEFAULT] = IMG_EDITOR_CASCADE_LIST;
 472     else if (IS_EDITOR_CASCADE_ACTIVE(i))
 473       element_info[i].graphic[ACTION_DEFAULT] = IMG_EDITOR_CASCADE_LIST_ACTIVE;
 474   }
 475 #endif
 476
 477   /* now set all undefined/invalid graphics to -1 to set to default after it */
 478   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 479   {
 480     for (act = 0; act < NUM_ACTIONS; act++)
 481     {
 482       int graphic;
 483
 484       graphic = element_info[i].graphic[act];
 485       if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 486         element_info[i].graphic[act] = -1;
 487
 488       graphic = element_info[i].crumbled[act];
 489       if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 490         element_info[i].crumbled[act] = -1;
 491
 492       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 493       {
 494         graphic = element_info[i].direction_graphic[act][dir];
 495         if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 496           element_info[i].direction_graphic[act][dir] = -1;
 497
 498         graphic = element_info[i].direction_crumbled[act][dir];
 499         if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 500           element_info[i].direction_crumbled[act][dir] = -1;
 501       }
 502     }
 503   }
 504
 505   /* adjust graphics with 2nd tile for movement according to direction
 506      (do this before correcting '-1' values to minimize calculations) */
 507   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 508   {
 509     for (act = 0; act < NUM_ACTIONS; act++)
 510     {
 511       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 512       {
 513         int graphic = element_info[i].direction_graphic[act][dir];
 514         int move_dir = (act == ACTION_FALLING ? MV_BIT_DOWN : dir);
 515
 516         if (act == ACTION_FALLING)      /* special case */
 517           graphic = element_info[i].graphic[act];
 518
 519         if (graphic != -1 &&
 520             graphic_info[graphic].double_movement &&
 521             graphic_info[graphic].swap_double_tiles != 0)
 522         {
 523           struct GraphicInfo *g = &graphic_info[graphic];
 524           int src_x_front = g->src_x;
 525           int src_y_front = g->src_y;
 526           int src_x_back = g->src_x + g->offset2_x;
 527           int src_y_back = g->src_y + g->offset2_y;
 528           boolean frames_are_ordered_diagonally = (g->offset_x != 0 &&
 529                                                    g->offset_y != 0);
 530           boolean front_is_left_or_upper = (src_x_front < src_x_back ||
 531                                             src_y_front < src_y_back);
 532           boolean swap_movement_tiles_always = (g->swap_double_tiles == 1);
 533           boolean swap_movement_tiles_autodetected =
 534             (!frames_are_ordered_diagonally &&
 535              ((move_dir == MV_BIT_LEFT  && !front_is_left_or_upper) ||
 536               (move_dir == MV_BIT_UP    && !front_is_left_or_upper) ||
 537               (move_dir == MV_BIT_RIGHT &&  front_is_left_or_upper) ||
 538               (move_dir == MV_BIT_DOWN  &&  front_is_left_or_upper)));
 539           Bitmap *dummy;
 540
 541           /* swap frontside and backside graphic tile coordinates, if needed */
 542           if (swap_movement_tiles_always || swap_movement_tiles_autodetected)
 543           {
 544             /* get current (wrong) backside tile coordinates */
 545             getGraphicSourceExt(graphic, 0, &dummy, &src_x_back, &src_y_back,
 546                                 TRUE);
 547
 548             /* set frontside tile coordinates to backside tile coordinates */
 549             g->src_x = src_x_back;
 550             g->src_y = src_y_back;
 551
 552             /* invert tile offset to point to new backside tile coordinates */
 553             g->offset2_x *= -1;
 554             g->offset2_y *= -1;
 555
 556             /* do not swap front and backside tiles again after correction */
 557             g->swap_double_tiles = 0;
 558           }
 559         }
 560       }
 561     }
 562   }
 563
 564   /* now set all '-1' values to element specific default values */
 565   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 566   {
 567     int default_graphic = element_info[i].graphic[ACTION_DEFAULT];
 568     int default_crumbled = element_info[i].crumbled[ACTION_DEFAULT];
 569     int default_direction_graphic[NUM_DIRECTIONS_FULL];
 570     int default_direction_crumbled[NUM_DIRECTIONS_FULL];
 571
 572     if (default_graphic == -1)
 573       default_graphic = IMG_UNKNOWN;
 574 #if 1
 575     if (default_crumbled == -1)
 576       default_crumbled = default_graphic;
 577 #else
 578     /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
 579     if (default_crumbled == -1)
 580       default_crumbled = IMG_EMPTY;
 581 #endif
 582
 583     for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 584     {
 585       default_direction_graphic[dir] =
 586         element_info[i].direction_graphic[ACTION_DEFAULT][dir];
 587       default_direction_crumbled[dir] =
 588         element_info[i].direction_crumbled[ACTION_DEFAULT][dir];
 589
 590       if (default_direction_graphic[dir] == -1)
 591         default_direction_graphic[dir] = default_graphic;
 592 #if 1
 593       if (default_direction_crumbled[dir] == -1)
 594         default_direction_crumbled[dir] = default_direction_graphic[dir];
 595 #else
 596       /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
 597       if (default_direction_crumbled[dir] == -1)
 598         default_direction_crumbled[dir] = default_crumbled;
 599 #endif
 600     }
 601
 602     for (act = 0; act < NUM_ACTIONS; act++)
 603     {
 604       boolean act_remove = ((IS_DIGGABLE(i)    && act == ACTION_DIGGING)  ||
 605                             (IS_SNAPPABLE(i)   && act == ACTION_SNAPPING) ||
 606                             (IS_COLLECTIBLE(i) && act == ACTION_COLLECTING));
 607       boolean act_turning = (act == ACTION_TURNING_FROM_LEFT ||
 608                              act == ACTION_TURNING_FROM_RIGHT ||
 609                              act == ACTION_TURNING_FROM_UP ||
 610                              act == ACTION_TURNING_FROM_DOWN);
 611
 612       /* generic default action graphic (defined by "[default]" directive) */
 613       int default_action_graphic = element_info[EL_DEFAULT].graphic[act];
 614       int default_action_crumbled = element_info[EL_DEFAULT].crumbled[act];
 615       int default_remove_graphic = IMG_EMPTY;
 616
 617       if (act_remove && default_action_graphic != -1)
 618         default_remove_graphic = default_action_graphic;
 619
 620       /* look for special default action graphic (classic game specific) */
 621       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].graphic[act] != -1)
 622         default_action_graphic = element_info[EL_BD_DEFAULT].graphic[act];
 623       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].graphic[act] != -1)
 624         default_action_graphic = element_info[EL_SP_DEFAULT].graphic[act];
 625       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].graphic[act] != -1)
 626         default_action_graphic = element_info[EL_SB_DEFAULT].graphic[act];
 627
 628       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].crumbled[act] != -1)
 629         default_action_crumbled = element_info[EL_BD_DEFAULT].crumbled[act];
 630       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].crumbled[act] != -1)
 631         default_action_crumbled = element_info[EL_SP_DEFAULT].crumbled[act];
 632       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].crumbled[act] != -1)
 633         default_action_crumbled = element_info[EL_SB_DEFAULT].crumbled[act];
 634
 635 #if 1
 636       /* !!! needed because EL_EMPTY_SPACE treated as IS_SP_ELEMENT !!! */
 637       /* !!! make this better !!! */
 638       if (i == EL_EMPTY_SPACE)
 639       {
 640         default_action_graphic = element_info[EL_DEFAULT].graphic[act];
 641         default_action_crumbled = element_info[EL_DEFAULT].crumbled[act];
 642       }
 643 #endif
 644
 645       if (default_action_graphic == -1)
 646         default_action_graphic = default_graphic;
 647 #if 1
 648       if (default_action_crumbled == -1)
 649         default_action_crumbled = default_action_graphic;
 650 #else
 651       /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
 652       if (default_action_crumbled == -1)
 653         default_action_crumbled = default_crumbled;
 654 #endif
 655
 656       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 657       {
 658         /* use action graphic as the default direction graphic, if undefined */
 659         int default_action_direction_graphic = element_info[i].graphic[act];
 660         int default_action_direction_crumbled = element_info[i].crumbled[act];
 661
 662         /* no graphic for current action -- use default direction graphic */
 663         if (default_action_direction_graphic == -1)
 664           default_action_direction_graphic =
 665             (act_remove ? default_remove_graphic :
 666              act_turning ?
 667              element_info[i].direction_graphic[ACTION_TURNING][dir] :
 668              default_action_graphic != default_graphic ?
 669              default_action_graphic :
 670              default_direction_graphic[dir]);
 671
 672         if (element_info[i].direction_graphic[act][dir] == -1)
 673           element_info[i].direction_graphic[act][dir] =
 674             default_action_direction_graphic;
 675
 676 #if 1
 677         if (default_action_direction_crumbled == -1)
 678           default_action_direction_crumbled =
 679             element_info[i].direction_graphic[act][dir];
 680 #else
 681         if (default_action_direction_crumbled == -1)
 682           default_action_direction_crumbled =
 683             (act_remove ? default_remove_graphic :
 684              act_turning ?
 685              element_info[i].direction_crumbled[ACTION_TURNING][dir] :
 686              default_action_crumbled != default_crumbled ?
 687              default_action_crumbled :
 688              default_direction_crumbled[dir]);
 689 #endif
 690
 691         if (element_info[i].direction_crumbled[act][dir] == -1)
 692           element_info[i].direction_crumbled[act][dir] =
 693             default_action_direction_crumbled;
 694       }
 695
 696       /* no graphic for this specific action -- use default action graphic */
 697       if (element_info[i].graphic[act] == -1)
 698         element_info[i].graphic[act] =
 699           (act_remove ? default_remove_graphic :
 700            act_turning ? element_info[i].graphic[ACTION_TURNING] :
 701            default_action_graphic);
 702 #if 1
 703       if (element_info[i].crumbled[act] == -1)
 704         element_info[i].crumbled[act] = element_info[i].graphic[act];
 705 #else
 706       if (element_info[i].crumbled[act] == -1)
 707         element_info[i].crumbled[act] =
 708           (act_remove ? default_remove_graphic :
 709            act_turning ? element_info[i].crumbled[ACTION_TURNING] :
 710            default_action_crumbled);
 711 #endif
 712     }
 713   }
 714
 715   /* set animation mode to "none" for each graphic with only 1 frame */
 716   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 717   {
 718     for (act = 0; act < NUM_ACTIONS; act++)
 719     {
 720       int graphic = element_info[i].graphic[act];
 721       int crumbled = element_info[i].crumbled[act];
 722
 723       if (graphic_info[graphic].anim_frames == 1)
 724         graphic_info[graphic].anim_mode = ANIM_NONE;
 725       if (graphic_info[crumbled].anim_frames == 1)
 726         graphic_info[crumbled].anim_mode = ANIM_NONE;
 727
 728       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 729       {
 730         graphic = element_info[i].direction_graphic[act][dir];
 731         crumbled = element_info[i].direction_crumbled[act][dir];
 732
 733         if (graphic_info[graphic].anim_frames == 1)
 734           graphic_info[graphic].anim_mode = ANIM_NONE;
 735         if (graphic_info[crumbled].anim_frames == 1)
 736           graphic_info[crumbled].anim_mode = ANIM_NONE;
 737       }
 738     }
 739   }
 740
 741 #if 0
 742 #if DEBUG
 743   if (options.verbose)
 744   {
 745     for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 746       if (element_info[i].graphic[ACTION_DEFAULT] == IMG_UNKNOWN &&
 747           i != EL_UNKNOWN)
 748         Error(ERR_RETURN, "warning: no graphic for element '%s' (%d)",
 749               element_info[i].token_name, i);
 750   }
 751 #endif
 752 #endif
 753 }
 754
 755 void InitElementSpecialGraphicInfo()
 756 {
 757   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 758   int num_property_mappings = getImageListPropertyMappingSize();
 759   int i, j;
 760
 761   /* always start with reliable default values */
 762   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 763     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 764       element_info[i].special_graphic[j] =
 765         element_info[i].graphic[ACTION_DEFAULT];
 766
 767   /* initialize special element/graphic mapping from static configuration */
 768   for (i = 0; element_to_special_graphic[i].element > -1; i++)
 769   {
 770     int element = element_to_special_graphic[i].element;
 771     int special = element_to_special_graphic[i].special;
 772     int graphic = element_to_special_graphic[i].graphic;
 773     int base_graphic = el2baseimg(element);
 774     boolean base_redefined =
 775       getImageListEntryFromImageID(base_graphic)->redefined;
 776     boolean special_redefined =
 777       getImageListEntryFromImageID(graphic)->redefined;
 778
 779     /* if the base graphic ("emerald", for example) has been redefined,
 780        but not the special graphic ("emerald.EDITOR", for example), do not
 781        use an existing (in this case considered obsolete) special graphic
 782        anymore, but use the automatically created (down-scaled) graphic */
 783     if (base_redefined && !special_redefined)
 784       continue;
 785
 786     element_info[element].special_graphic[special] = graphic;
 787   }
 788
 789   /* initialize special element/graphic mapping from dynamic configuration */
 790   for (i = 0; i < num_property_mappings; i++)
 791   {
 792     int element = property_mapping[i].base_index;
 793     int special = property_mapping[i].ext3_index;
 794     int graphic = property_mapping[i].artwork_index;
 795
 796     if (element >= MAX_NUM_ELEMENTS)
 797       continue;
 798
 799     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 800       element_info[element].special_graphic[special] = graphic;
 801   }
 802
 803   /* now set all undefined/invalid graphics to default */
 804   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 805     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 806       if (graphic_info[element_info[i].special_graphic[j]].bitmap == NULL)
 807         element_info[i].special_graphic[j] =
 808           element_info[i].graphic[ACTION_DEFAULT];
 809 }
 810
 811 static int get_graphic_parameter_value(char *value_raw, char *suffix, int type)
 812 {
 813   int i;
 814   int x = 0;
 815
 816   if (type != TYPE_TOKEN)
 817     return get_parameter_value(value_raw, suffix, type);
 818
 819   if (strcmp(value_raw, ARG_UNDEFINED) == 0)
 820     return ARG_UNDEFINED_VALUE;
 821
 822   /* !!! OPTIMIZE THIS BY USING HASH !!! */
 823   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 824     if (strcmp(element_info[i].token_name, value_raw) == 0)
 825       return i;
 826
 827   /* !!! OPTIMIZE THIS BY USING HASH !!! */
 828   for (i = 0; image_config[i].token != NULL; i++)
 829   {
 830     int len_config_value = strlen(image_config[i].value);
 831
 832     if (strcmp(&image_config[i].value[len_config_value - 4], ".pcx") != 0 &&
 833         strcmp(&image_config[i].value[len_config_value - 4], ".wav") != 0 &&
 834         strcmp(image_config[i].value, UNDEFINED_FILENAME) != 0)
 835       continue;
 836
 837     if (strcmp(image_config[i].token, value_raw) == 0)
 838       return x;
 839
 840     x++;
 841   }
 842
 843   return -1;
 844 }
 845
 846 static int get_scaled_graphic_width(int graphic)
 847 {
 848   int original_width = getOriginalImageWidthFromImageID(graphic);
 849   int scale_up_factor = graphic_info[graphic].scale_up_factor;
 850
 851   return original_width * scale_up_factor;
 852 }
 853
 854 static int get_scaled_graphic_height(int graphic)
 855 {
 856   int original_height = getOriginalImageHeightFromImageID(graphic);
 857   int scale_up_factor = graphic_info[graphic].scale_up_factor;
 858
 859   return original_height * scale_up_factor;
 860 }
 861
 862 static void set_graphic_parameters(int graphic)
 863 {
 864   struct FileInfo *image = getImageListEntryFromImageID(graphic);
 865   char **parameter_raw = image->parameter;
 866   Bitmap *src_bitmap = getBitmapFromImageID(graphic);
 867   int parameter[NUM_GFX_ARGS];
 868   int anim_frames_per_row = 1, anim_frames_per_col = 1;
 869   int anim_frames_per_line = 1;
 870   int i;
 871
 872   /* if fallback to default artwork is done, also use the default parameters */
 873   if (image->fallback_to_default)
 874     parameter_raw = image->default_parameter;
 875
 876   /* get integer values from string parameters */
 877   for (i = 0; i < NUM_GFX_ARGS; i++)
 878     parameter[i] = get_graphic_parameter_value(parameter_raw[i],
 879                                                image_config_suffix[i].token,
 880                                                image_config_suffix[i].type);
 881
 882   graphic_info[graphic].bitmap = src_bitmap;
 883
 884   /* start with reliable default values */
 885   graphic_info[graphic].src_image_width = 0;
 886   graphic_info[graphic].src_image_height = 0;
 887   graphic_info[graphic].src_x = 0;
 888   graphic_info[graphic].src_y = 0;
 889   graphic_info[graphic].width = TILEX;
 890   graphic_info[graphic].height = TILEY;
 891   graphic_info[graphic].offset_x = 0;   /* one or both of these values ... */
 892   graphic_info[graphic].offset_y = 0;   /* ... will be corrected later */
 893   graphic_info[graphic].offset2_x = 0;  /* one or both of these values ... */
 894   graphic_info[graphic].offset2_y = 0;  /* ... will be corrected later */
 895   graphic_info[graphic].swap_double_tiles = -1; /* auto-detect tile swapping */
 896   graphic_info[graphic].crumbled_like = -1;     /* do not use clone element */
 897   graphic_info[graphic].diggable_like = -1;     /* do not use clone element */
 898   graphic_info[graphic].border_size = TILEX / 8;  /* "CRUMBLED" border size */
 899   graphic_info[graphic].scale_up_factor = 1;    /* default: no scaling up */
 900   graphic_info[graphic].clone_from = -1;        /* do not use clone graphic */
 901   graphic_info[graphic].anim_delay_fixed = 0;
 902   graphic_info[graphic].anim_delay_random = 0;
 903   graphic_info[graphic].post_delay_fixed = 0;
 904   graphic_info[graphic].post_delay_random = 0;
 905
 906   /* optional x and y tile position of animation frame sequence */
 907   if (parameter[GFX_ARG_XPOS] != ARG_UNDEFINED_VALUE)
 908     graphic_info[graphic].src_x = parameter[GFX_ARG_XPOS] * TILEX;
 909   if (parameter[GFX_ARG_YPOS] != ARG_UNDEFINED_VALUE)
 910     graphic_info[graphic].src_y = parameter[GFX_ARG_YPOS] * TILEY;
 911
 912   /* optional x and y pixel position of animation frame sequence */
 913   if (parameter[GFX_ARG_X] != ARG_UNDEFINED_VALUE)
 914     graphic_info[graphic].src_x = parameter[GFX_ARG_X];
 915   if (parameter[GFX_ARG_Y] != ARG_UNDEFINED_VALUE)
 916     graphic_info[graphic].src_y = parameter[GFX_ARG_Y];
 917
 918   /* optional width and height of each animation frame */
 919   if (parameter[GFX_ARG_WIDTH] != ARG_UNDEFINED_VALUE)
 920     graphic_info[graphic].width = parameter[GFX_ARG_WIDTH];
 921   if (parameter[GFX_ARG_HEIGHT] != ARG_UNDEFINED_VALUE)
 922     graphic_info[graphic].height = parameter[GFX_ARG_HEIGHT];
 923
 924   /* optional zoom factor for scaling up the image to a larger size */
 925   if (parameter[GFX_ARG_SCALE_UP_FACTOR] != ARG_UNDEFINED_VALUE)
 926     graphic_info[graphic].scale_up_factor = parameter[GFX_ARG_SCALE_UP_FACTOR];
 927   if (graphic_info[graphic].scale_up_factor < 1)
 928     graphic_info[graphic].scale_up_factor = 1;          /* no scaling */
 929
 930   if (src_bitmap)
 931   {
 932     /* get final bitmap size (with scaling, but without small images) */
 933     int src_image_width  = get_scaled_graphic_width(graphic);
 934     int src_image_height = get_scaled_graphic_height(graphic);
 935
 936     anim_frames_per_row = src_image_width  / graphic_info[graphic].width;
 937     anim_frames_per_col = src_image_height / graphic_info[graphic].height;
 938
 939     graphic_info[graphic].src_image_width  = src_image_width;
 940     graphic_info[graphic].src_image_height = src_image_height;
 941   }
 942
 943   /* correct x or y offset dependent of vertical or horizontal frame order */
 944   if (parameter[GFX_ARG_VERTICAL])      /* frames are ordered vertically */
 945   {
 946     graphic_info[graphic].offset_y =
 947       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
 948        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].height);
 949     anim_frames_per_line = anim_frames_per_col;
 950   }
 951   else                                  /* frames are ordered horizontally */
 952   {
 953     graphic_info[graphic].offset_x =
 954       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
 955        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].width);
 956     anim_frames_per_line = anim_frames_per_row;
 957   }
 958
 959   /* optionally, the x and y offset of frames can be specified directly */
 960   if (parameter[GFX_ARG_XOFFSET] != ARG_UNDEFINED_VALUE)
 961     graphic_info[graphic].offset_x = parameter[GFX_ARG_XOFFSET];
 962   if (parameter[GFX_ARG_YOFFSET] != ARG_UNDEFINED_VALUE)
 963     graphic_info[graphic].offset_y = parameter[GFX_ARG_YOFFSET];
 964
 965   /* optionally, moving animations may have separate start and end graphics */
 966   graphic_info[graphic].double_movement = parameter[GFX_ARG_2ND_MOVEMENT_TILE];
 967
 968   if (parameter[GFX_ARG_2ND_VERTICAL] == ARG_UNDEFINED_VALUE)
 969     parameter[GFX_ARG_2ND_VERTICAL] = !parameter[GFX_ARG_VERTICAL];
 970
 971   /* correct x or y offset2 dependent of vertical or horizontal frame order */
 972   if (parameter[GFX_ARG_2ND_VERTICAL])  /* frames are ordered vertically */
 973     graphic_info[graphic].offset2_y =
 974       (parameter[GFX_ARG_2ND_OFFSET] != ARG_UNDEFINED_VALUE ?
 975        parameter[GFX_ARG_2ND_OFFSET] : graphic_info[graphic].height);
 976   else                                  /* frames are ordered horizontally */
 977     graphic_info[graphic].offset2_x =
 978       (parameter[GFX_ARG_2ND_OFFSET] != ARG_UNDEFINED_VALUE ?
 979        parameter[GFX_ARG_2ND_OFFSET] : graphic_info[graphic].width);
 980
 981   /* optionally, the x and y offset of 2nd graphic can be specified directly */
 982   if (parameter[GFX_ARG_2ND_XOFFSET] != ARG_UNDEFINED_VALUE)
 983     graphic_info[graphic].offset2_x = parameter[GFX_ARG_2ND_XOFFSET];
 984   if (parameter[GFX_ARG_2ND_YOFFSET] != ARG_UNDEFINED_VALUE)
 985     graphic_info[graphic].offset2_y = parameter[GFX_ARG_2ND_YOFFSET];
 986
 987   /* optionally, the second movement tile can be specified as start tile */
 988   if (parameter[GFX_ARG_2ND_SWAP_TILES] != ARG_UNDEFINED_VALUE)
 989     graphic_info[graphic].swap_double_tiles= parameter[GFX_ARG_2ND_SWAP_TILES];
 990
 991   /* automatically determine correct number of frames, if not defined */
 992   if (parameter[GFX_ARG_FRAMES] != ARG_UNDEFINED_VALUE)
 993     graphic_info[graphic].anim_frames = parameter[GFX_ARG_FRAMES];
 994   else if (parameter[GFX_ARG_XPOS] == 0 && !parameter[GFX_ARG_VERTICAL])
 995     graphic_info[graphic].anim_frames = anim_frames_per_row;
 996   else if (parameter[GFX_ARG_YPOS] == 0 && parameter[GFX_ARG_VERTICAL])
 997     graphic_info[graphic].anim_frames = anim_frames_per_col;
 998   else
 999     graphic_info[graphic].anim_frames = 1;
1000
1001   graphic_info[graphic].anim_frames_per_line =
1002     (parameter[GFX_ARG_FRAMES_PER_LINE] != ARG_UNDEFINED_VALUE ?
1003      parameter[GFX_ARG_FRAMES_PER_LINE] : anim_frames_per_line);
1004
1005   graphic_info[graphic].anim_delay = parameter[GFX_ARG_DELAY];
1006   if (graphic_info[graphic].anim_delay == 0)    /* delay must be at least 1 */
1007     graphic_info[graphic].anim_delay = 1;
1008
1009   graphic_info[graphic].anim_mode = parameter[GFX_ARG_ANIM_MODE];
1010 #if 0
1011   if (graphic_info[graphic].anim_frames == 1)
1012     graphic_info[graphic].anim_mode = ANIM_NONE;
1013 #endif
1014
1015   /* automatically determine correct start frame, if not defined */
1016   if (parameter[GFX_ARG_START_FRAME] == ARG_UNDEFINED_VALUE)
1017     graphic_info[graphic].anim_start_frame = 0;
1018   else if (graphic_info[graphic].anim_mode & ANIM_REVERSE)
1019     graphic_info[graphic].anim_start_frame =
1020       graphic_info[graphic].anim_frames - parameter[GFX_ARG_START_FRAME] - 1;
1021   else
1022     graphic_info[graphic].anim_start_frame = parameter[GFX_ARG_START_FRAME];
1023
1024   /* animation synchronized with global frame counter, not move position */
1025   graphic_info[graphic].anim_global_sync = parameter[GFX_ARG_GLOBAL_SYNC];
1026
1027   /* optional element for cloning crumble graphics */
1028   if (parameter[GFX_ARG_CRUMBLED_LIKE] != ARG_UNDEFINED_VALUE)
1029     graphic_info[graphic].crumbled_like = parameter[GFX_ARG_CRUMBLED_LIKE];
1030
1031   /* optional element for cloning digging graphics */
1032   if (parameter[GFX_ARG_DIGGABLE_LIKE] != ARG_UNDEFINED_VALUE)
1033     graphic_info[graphic].diggable_like = parameter[GFX_ARG_DIGGABLE_LIKE];
1034
1035   /* optional border size for "crumbling" diggable graphics */
1036   if (parameter[GFX_ARG_BORDER_SIZE] != ARG_UNDEFINED_VALUE)
1037     graphic_info[graphic].border_size = parameter[GFX_ARG_BORDER_SIZE];
1038
1039   /* this is only used for player "boring" and "sleeping" actions */
1040   if (parameter[GFX_ARG_ANIM_DELAY_FIXED] != ARG_UNDEFINED_VALUE)
1041     graphic_info[graphic].anim_delay_fixed =
1042       parameter[GFX_ARG_ANIM_DELAY_FIXED];
1043   if (parameter[GFX_ARG_ANIM_DELAY_RANDOM] != ARG_UNDEFINED_VALUE)
1044     graphic_info[graphic].anim_delay_random =
1045       parameter[GFX_ARG_ANIM_DELAY_RANDOM];
1046   if (parameter[GFX_ARG_POST_DELAY_FIXED] != ARG_UNDEFINED_VALUE)
1047     graphic_info[graphic].post_delay_fixed =
1048       parameter[GFX_ARG_POST_DELAY_FIXED];
1049   if (parameter[GFX_ARG_POST_DELAY_RANDOM] != ARG_UNDEFINED_VALUE)
1050     graphic_info[graphic].post_delay_random =
1051       parameter[GFX_ARG_POST_DELAY_RANDOM];
1052
1053   /* this is only used for toon animations */
1054   graphic_info[graphic].step_offset = parameter[GFX_ARG_STEP_OFFSET];
1055   graphic_info[graphic].step_delay  = parameter[GFX_ARG_STEP_DELAY];
1056
1057   /* this is only used for drawing font characters */
1058   graphic_info[graphic].draw_x = parameter[GFX_ARG_DRAW_XOFFSET];
1059   graphic_info[graphic].draw_y = parameter[GFX_ARG_DRAW_YOFFSET];
1060
1061   /* this is only used for drawing envelope graphics */
1062   graphic_info[graphic].draw_masked = parameter[GFX_ARG_DRAW_MASKED];
1063
1064   /* optional graphic for cloning all graphics settings */
1065   if (parameter[GFX_ARG_CLONE_FROM] != ARG_UNDEFINED_VALUE)
1066     graphic_info[graphic].clone_from = parameter[GFX_ARG_CLONE_FROM];
1067 }
1068
1069 static void set_cloned_graphic_parameters(int graphic)
1070 {
1071   int fallback_graphic = IMG_CHAR_EXCLAM;
1072   int max_num_images = getImageListSize();
1073   int clone_graphic = graphic_info[graphic].clone_from;
1074   int num_references_followed = 1;
1075
1076   while (graphic_info[clone_graphic].clone_from != -1 &&
1077          num_references_followed < max_num_images)
1078   {
1079     clone_graphic = graphic_info[clone_graphic].clone_from;
1080
1081     num_references_followed++;
1082   }
1083
1084   if (num_references_followed >= max_num_images)
1085   {
1086     Error(ERR_RETURN_LINE, "-");
1087     Error(ERR_RETURN, "warning: error found in config file:");
1088     Error(ERR_RETURN, "- config file: '%s'", getImageConfigFilename());
1089     Error(ERR_RETURN, "- config token: '%s'", getTokenFromImageID(graphic));
1090     Error(ERR_RETURN, "error: loop discovered when resolving cloned graphics");
1091     Error(ERR_RETURN, "custom graphic rejected for this element/action");
1092
1093     if (graphic == fallback_graphic)
1094       Error(ERR_EXIT, "fatal error: no fallback graphic available");
1095
1096     Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1097     Error(ERR_RETURN_LINE, "-");
1098
1099     graphic_info[graphic] = graphic_info[fallback_graphic];
1100   }
1101   else
1102   {
1103     graphic_info[graphic] = graphic_info[clone_graphic];
1104     graphic_info[graphic].clone_from = clone_graphic;
1105   }
1106 }
1107
1108 static void InitGraphicInfo()
1109 {
1110   int fallback_graphic = IMG_CHAR_EXCLAM;
1111   int num_images = getImageListSize();
1112   int i;
1113
1114 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1115   static boolean clipmasks_initialized = FALSE;
1116   Pixmap src_pixmap;
1117   XGCValues clip_gc_values;
1118   unsigned long clip_gc_valuemask;
1119   GC copy_clipmask_gc = None;
1120 #endif
1121
1122   checked_free(graphic_info);
1123
1124   graphic_info = checked_calloc(num_images * sizeof(struct GraphicInfo));
1125
1126 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1127   if (clipmasks_initialized)
1128   {
1129     for (i = 0; i < num_images; i++)
1130     {
1131       if (graphic_info[i].clip_mask)
1132         XFreePixmap(display, graphic_info[i].clip_mask);
1133       if (graphic_info[i].clip_gc)
1134         XFreeGC(display, graphic_info[i].clip_gc);
1135
1136       graphic_info[i].clip_mask = None;
1137       graphic_info[i].clip_gc = None;
1138     }
1139   }
1140 #endif
1141
1142   /* first set all graphic paramaters ... */
1143   for (i = 0; i < num_images; i++)
1144     set_graphic_parameters(i);
1145
1146   /* ... then copy these parameters for cloned graphics */
1147   for (i = 0; i < num_images; i++)
1148     if (graphic_info[i].clone_from != -1)
1149       set_cloned_graphic_parameters(i);
1150
1151   for (i = 0; i < num_images; i++)
1152   {
1153     Bitmap *src_bitmap;
1154     int src_x, src_y;
1155     int first_frame, last_frame;
1156     int src_bitmap_width, src_bitmap_height;
1157
1158     /* now check if no animation frames are outside of the loaded image */
1159
1160     if (graphic_info[i].bitmap == NULL)
1161       continue;         /* skip check for optional images that are undefined */
1162
1163     /* get final bitmap size (with scaling, but without small images) */
1164     src_bitmap_width  = graphic_info[i].src_image_width;
1165     src_bitmap_height = graphic_info[i].src_image_height;
1166
1167     /* check if first animation frame is inside specified bitmap */
1168
1169     first_frame = 0;
1170     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
1171
1172     if (src_x < 0 || src_y < 0 ||
1173         src_x + TILEX > src_bitmap_width ||
1174         src_y + TILEY > src_bitmap_height)
1175     {
1176       Error(ERR_RETURN_LINE, "-");
1177       Error(ERR_RETURN, "warning: error found in config file:");
1178       Error(ERR_RETURN, "- config file: '%s'", getImageConfigFilename());
1179       Error(ERR_RETURN, "- config token: '%s'", getTokenFromImageID(i));
1180       Error(ERR_RETURN, "- image file: '%s'", src_bitmap->source_filename);
1181       Error(ERR_RETURN,
1182             "error: first animation frame out of bounds (%d, %d) [%d, %d]",
1183             src_x, src_y, src_bitmap_width, src_bitmap_height);
1184       Error(ERR_RETURN, "custom graphic rejected for this element/action");
1185
1186       if (i == fallback_graphic)
1187         Error(ERR_EXIT, "fatal error: no fallback graphic available");
1188
1189       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1190       Error(ERR_RETURN_LINE, "-");
1191
1192       graphic_info[i] = graphic_info[fallback_graphic];
1193     }
1194
1195     /* check if last animation frame is inside specified bitmap */
1196
1197     last_frame = graphic_info[i].anim_frames - 1;
1198     getGraphicSource(i, last_frame, &src_bitmap, &src_x, &src_y);
1199
1200     if (src_x < 0 || src_y < 0 ||
1201         src_x + TILEX > src_bitmap_width ||
1202         src_y + TILEY > src_bitmap_height)
1203     {
1204       Error(ERR_RETURN_LINE, "-");
1205       Error(ERR_RETURN, "warning: error found in config file:");
1206       Error(ERR_RETURN, "- config file: '%s'", getImageConfigFilename());
1207       Error(ERR_RETURN, "- config token: '%s'", getTokenFromImageID(i));
1208       Error(ERR_RETURN, "- image file: '%s'", src_bitmap->source_filename);
1209       Error(ERR_RETURN,
1210             "error: last animation frame (%d) out of bounds (%d, %d) [%d, %d]",
1211             last_frame, src_x, src_y, src_bitmap_width, src_bitmap_height);
1212       Error(ERR_RETURN, "custom graphic rejected for this element/action");
1213
1214       if (i == fallback_graphic)
1215         Error(ERR_EXIT, "fatal error: no fallback graphic available");
1216
1217       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1218       Error(ERR_RETURN_LINE, "-");
1219
1220       graphic_info[i] = graphic_info[fallback_graphic];
1221     }
1222
1223 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1224     /* currently we only need a tile clip mask from the first frame */
1225     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
1226
1227     if (copy_clipmask_gc == None)
1228     {
1229       clip_gc_values.graphics_exposures = False;
1230       clip_gc_valuemask = GCGraphicsExposures;
1231       copy_clipmask_gc = XCreateGC(display, src_bitmap->clip_mask,
1232                                    clip_gc_valuemask, &clip_gc_values);
1233     }
1234
1235     graphic_info[i].clip_mask =
1236       XCreatePixmap(display, window->drawable, TILEX, TILEY, 1);
1237
1238     src_pixmap = src_bitmap->clip_mask;
1239     XCopyArea(display, src_pixmap, graphic_info[i].clip_mask,
1240               copy_clipmask_gc, src_x, src_y, TILEX, TILEY, 0, 0);
1241
1242     clip_gc_values.graphics_exposures = False;
1243     clip_gc_values.clip_mask = graphic_info[i].clip_mask;
1244     clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
1245
1246     graphic_info[i].clip_gc =
1247       XCreateGC(display, window->drawable, clip_gc_valuemask, &clip_gc_values);
1248 #endif
1249   }
1250
1251 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1252   if (copy_clipmask_gc)
1253     XFreeGC(display, copy_clipmask_gc);
1254
1255   clipmasks_initialized = TRUE;
1256 #endif
1257 }
1258
1259 static void InitElementSoundInfo()
1260 {
1261   struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
1262   int num_property_mappings = getSoundListPropertyMappingSize();
1263   int i, j, act;
1264
1265   /* set values to -1 to identify later as "uninitialized" values */
1266   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1267     for (act = 0; act < NUM_ACTIONS; act++)
1268       element_info[i].sound[act] = -1;
1269
1270   /* initialize element/sound mapping from static configuration */
1271   for (i = 0; element_to_sound[i].element > -1; i++)
1272   {
1273     int element      = element_to_sound[i].element;
1274     int action       = element_to_sound[i].action;
1275     int sound        = element_to_sound[i].sound;
1276     boolean is_class = element_to_sound[i].is_class;
1277
1278     if (action < 0)
1279       action = ACTION_DEFAULT;
1280
1281     if (!is_class)
1282       element_info[element].sound[action] = sound;
1283     else
1284       for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1285         if (strcmp(element_info[j].class_name,
1286                    element_info[element].class_name) == 0)
1287           element_info[j].sound[action] = sound;
1288   }
1289
1290   /* initialize element class/sound mapping from dynamic configuration */
1291   for (i = 0; i < num_property_mappings; i++)
1292   {
1293     int element_class = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
1294     int action        = property_mapping[i].ext1_index;
1295     int sound         = property_mapping[i].artwork_index;
1296
1297     if (element_class < 0 || element_class >= MAX_NUM_ELEMENTS)
1298       continue;
1299
1300     if (action < 0)
1301       action = ACTION_DEFAULT;
1302
1303     for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1304       if (strcmp(element_info[j].class_name,
1305                  element_info[element_class].class_name) == 0)
1306         element_info[j].sound[action] = sound;
1307   }
1308
1309   /* initialize element/sound mapping from dynamic configuration */
1310   for (i = 0; i < num_property_mappings; i++)
1311   {
1312     int element = property_mapping[i].base_index;
1313     int action  = property_mapping[i].ext1_index;
1314     int sound   = property_mapping[i].artwork_index;
1315
1316     if (element >= MAX_NUM_ELEMENTS)
1317       continue;
1318
1319     if (action < 0)
1320       action = ACTION_DEFAULT;
1321
1322     element_info[element].sound[action] = sound;
1323   }
1324
1325   /* now set all '-1' values to element specific default values */
1326   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1327   {
1328     for (act = 0; act < NUM_ACTIONS; act++)
1329     {
1330       /* generic default action sound (defined by "[default]" directive) */
1331       int default_action_sound = element_info[EL_DEFAULT].sound[act];
1332
1333       /* look for special default action sound (classic game specific) */
1334       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].sound[act] != -1)
1335         default_action_sound = element_info[EL_BD_DEFAULT].sound[act];
1336       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].sound[act] != -1)
1337         default_action_sound = element_info[EL_SP_DEFAULT].sound[act];
1338       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].sound[act] != -1)
1339         default_action_sound = element_info[EL_SB_DEFAULT].sound[act];
1340
1341       /* !!! there's no such thing as a "default action sound" !!! */
1342 #if 0
1343       /* look for element specific default sound (independent from action) */
1344       if (element_info[i].sound[ACTION_DEFAULT] != -1)
1345         default_action_sound = element_info[i].sound[ACTION_DEFAULT];
1346 #endif
1347
1348 #if 1
1349       /* !!! needed because EL_EMPTY_SPACE treated as IS_SP_ELEMENT !!! */
1350       /* !!! make this better !!! */
1351       if (i == EL_EMPTY_SPACE)
1352         default_action_sound = element_info[EL_DEFAULT].sound[act];
1353 #endif
1354
1355       /* no sound for this specific action -- use default action sound */
1356       if (element_info[i].sound[act] == -1)
1357         element_info[i].sound[act] = default_action_sound;
1358     }
1359   }
1360
1361   /* copy sound settings to some elements that are only stored in level file
1362      in native R'n'D levels, but are used by game engine in native EM levels */
1363   for (i = 0; copy_properties[i][0] != -1; i++)
1364     for (j = 1; j <= 4; j++)
1365       for (act = 0; act < NUM_ACTIONS; act++)
1366         element_info[copy_properties[i][j]].sound[act] =
1367           element_info[copy_properties[i][0]].sound[act];
1368 }
1369
1370 static void InitGameModeSoundInfo()
1371 {
1372   int i;
1373
1374   /* set values to -1 to identify later as "uninitialized" values */
1375   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1376     menu.sound[i] = -1;
1377
1378   /* initialize gamemode/sound mapping from static configuration */
1379   for (i = 0; gamemode_to_sound[i].sound > -1; i++)
1380   {
1381     int gamemode = gamemode_to_sound[i].gamemode;
1382     int sound    = gamemode_to_sound[i].sound;
1383
1384     if (gamemode < 0)
1385       gamemode = GAME_MODE_DEFAULT;
1386
1387     menu.sound[gamemode] = sound;
1388   }
1389
1390   /* now set all '-1' values to levelset specific default values */
1391   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1392     if (menu.sound[i] == -1)
1393       menu.sound[i] = menu.sound[GAME_MODE_DEFAULT];
1394
1395 #if 0
1396   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1397     if (menu.sound[i] != -1)
1398       printf("::: menu.sound[%d] == %d\n", i, menu.sound[i]);
1399 #endif
1400 }
1401
1402 static void set_sound_parameters(int sound, char **parameter_raw)
1403 {
1404   int parameter[NUM_SND_ARGS];
1405   int i;
1406
1407   /* get integer values from string parameters */
1408   for (i = 0; i < NUM_SND_ARGS; i++)
1409     parameter[i] =
1410       get_parameter_value(parameter_raw[i],
1411                           sound_config_suffix[i].token,
1412                           sound_config_suffix[i].type);
1413
1414   /* explicit loop mode setting in configuration overrides default value */
1415   if (parameter[SND_ARG_MODE_LOOP] != ARG_UNDEFINED_VALUE)
1416     sound_info[sound].loop = parameter[SND_ARG_MODE_LOOP];
1417
1418   /* sound volume to change the original volume when loading the sound file */
1419   sound_info[sound].volume = parameter[SND_ARG_VOLUME];
1420
1421   /* sound priority to give certain sounds a higher or lower priority */
1422   sound_info[sound].volume = parameter[SND_ARG_VOLUME];
1423 }
1424
1425 static void InitSoundInfo()
1426 {
1427   int *sound_effect_properties;
1428   int num_sounds = getSoundListSize();
1429   int i, j;
1430
1431   checked_free(sound_info);
1432
1433   sound_effect_properties = checked_calloc(num_sounds * sizeof(int));
1434   sound_info = checked_calloc(num_sounds * sizeof(struct SoundInfo));
1435
1436   /* initialize sound effect for all elements to "no sound" */
1437   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1438     for (j = 0; j < NUM_ACTIONS; j++)
1439       element_info[i].sound[j] = SND_UNDEFINED;
1440
1441   for (i = 0; i < num_sounds; i++)
1442   {
1443     struct FileInfo *sound = getSoundListEntry(i);
1444     int len_effect_text = strlen(sound->token);
1445
1446     sound_effect_properties[i] = ACTION_OTHER;
1447     sound_info[i].loop = FALSE;         /* default: play sound only once */
1448
1449 #if 0
1450     printf("::: sound %d: '%s'\n", i, sound->token);
1451 #endif
1452
1453     /* determine all loop sounds and identify certain sound classes */
1454
1455     for (j = 0; element_action_info[j].suffix; j++)
1456     {
1457       int len_action_text = strlen(element_action_info[j].suffix);
1458
1459       if (len_action_text < len_effect_text &&
1460           strcmp(&sound->token[len_effect_text - len_action_text],
1461                  element_action_info[j].suffix) == 0)
1462       {
1463         sound_effect_properties[i] = element_action_info[j].value;
1464         sound_info[i].loop = element_action_info[j].is_loop_sound;
1465
1466         break;
1467       }
1468     }
1469
1470     /* associate elements and some selected sound actions */
1471
1472     for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1473     {
1474       if (element_info[j].class_name)
1475       {
1476         int len_class_text = strlen(element_info[j].class_name);
1477
1478         if (len_class_text + 1 < len_effect_text &&
1479             strncmp(sound->token,
1480                     element_info[j].class_name, len_class_text) == 0 &&
1481             sound->token[len_class_text] == '.')
1482         {
1483           int sound_action_value = sound_effect_properties[i];
1484
1485           element_info[j].sound[sound_action_value] = i;
1486         }
1487       }
1488     }
1489
1490     set_sound_parameters(i, sound->parameter);
1491   }
1492
1493   free(sound_effect_properties);
1494 }
1495
1496 static void InitGameModeMusicInfo()
1497 {
1498   struct PropertyMapping *property_mapping = getMusicListPropertyMapping();
1499   int num_property_mappings = getMusicListPropertyMappingSize();
1500   int default_levelset_music = -1;
1501   int i;
1502
1503   /* set values to -1 to identify later as "uninitialized" values */
1504   for (i = 0; i < MAX_LEVELS; i++)
1505     levelset.music[i] = -1;
1506   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1507     menu.music[i] = -1;
1508
1509   /* initialize gamemode/music mapping from static configuration */
1510   for (i = 0; gamemode_to_music[i].music > -1; i++)
1511   {
1512     int gamemode = gamemode_to_music[i].gamemode;
1513     int music    = gamemode_to_music[i].music;
1514
1515 #if 0
1516     printf("::: gamemode == %d, music == %d\n", gamemode, music);
1517 #endif
1518
1519     if (gamemode < 0)
1520       gamemode = GAME_MODE_DEFAULT;
1521
1522     menu.music[gamemode] = music;
1523   }
1524
1525   /* initialize gamemode/music mapping from dynamic configuration */
1526   for (i = 0; i < num_property_mappings; i++)
1527   {
1528     int prefix   = property_mapping[i].base_index;
1529     int gamemode = property_mapping[i].ext1_index;
1530     int level    = property_mapping[i].ext2_index;
1531     int music    = property_mapping[i].artwork_index;
1532
1533 #if 0
1534     printf("::: prefix == %d, gamemode == %d, level == %d, music == %d\n",
1535            prefix, gamemode, level, music);
1536 #endif
1537
1538     if (prefix < 0 || prefix >= NUM_MUSIC_PREFIXES)
1539       continue;
1540
1541     if (gamemode < 0)
1542       gamemode = GAME_MODE_DEFAULT;
1543
1544     /* level specific music only allowed for in-game music */
1545     if (level != -1 && gamemode == GAME_MODE_DEFAULT)
1546       gamemode = GAME_MODE_PLAYING;
1547
1548     if (level == -1)
1549     {
1550       level = 0;
1551       default_levelset_music = music;
1552     }
1553
1554     if (gamemode == GAME_MODE_PLAYING || gamemode == GAME_MODE_DEFAULT)
1555       levelset.music[level] = music;
1556     if (gamemode != GAME_MODE_PLAYING)
1557       menu.music[gamemode] = music;
1558   }
1559
1560   /* now set all '-1' values to menu specific default values */
1561   /* (undefined values of "levelset.music[]" might stay at "-1" to
1562      allow dynamic selection of music files from music directory!) */
1563   for (i = 0; i < MAX_LEVELS; i++)
1564     if (levelset.music[i] == -1)
1565       levelset.music[i] = default_levelset_music;
1566   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1567     if (menu.music[i] == -1)
1568       menu.music[i] = menu.music[GAME_MODE_DEFAULT];
1569
1570 #if 0
1571   for (i = 0; i < MAX_LEVELS; i++)
1572     if (levelset.music[i] != -1)
1573       printf("::: levelset.music[%d] == %d\n", i, levelset.music[i]);
1574   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1575     if (menu.music[i] != -1)
1576       printf("::: menu.music[%d] == %d\n", i, menu.music[i]);
1577 #endif
1578 }
1579
1580 static void set_music_parameters(int music, char **parameter_raw)
1581 {
1582   int parameter[NUM_MUS_ARGS];
1583   int i;
1584
1585   /* get integer values from string parameters */
1586   for (i = 0; i < NUM_MUS_ARGS; i++)
1587     parameter[i] =
1588       get_parameter_value(parameter_raw[i],
1589                           music_config_suffix[i].token,
1590                           music_config_suffix[i].type);
1591
1592   /* explicit loop mode setting in configuration overrides default value */
1593   if (parameter[MUS_ARG_MODE_LOOP] != ARG_UNDEFINED_VALUE)
1594     music_info[music].loop = parameter[MUS_ARG_MODE_LOOP];
1595 }
1596
1597 static void InitMusicInfo()
1598 {
1599   int num_music = getMusicListSize();
1600   int i, j;
1601
1602   checked_free(music_info);
1603
1604   music_info = checked_calloc(num_music * sizeof(struct MusicInfo));
1605
1606   for (i = 0; i < num_music; i++)
1607   {
1608     struct FileInfo *music = getMusicListEntry(i);
1609     int len_music_text = strlen(music->token);
1610
1611     music_info[i].loop = TRUE;          /* default: play music in loop mode */
1612
1613     /* determine all loop music */
1614
1615     for (j = 0; music_prefix_info[j].prefix; j++)
1616     {
1617       int len_prefix_text = strlen(music_prefix_info[j].prefix);
1618
1619       if (len_prefix_text < len_music_text &&
1620           strncmp(music->token,
1621                   music_prefix_info[j].prefix, len_prefix_text) == 0)
1622       {
1623         music_info[i].loop = music_prefix_info[j].is_loop_music;
1624
1625         break;
1626       }
1627     }
1628
1629     set_music_parameters(i, music->parameter);
1630   }
1631 }
1632
1633 static void ReinitializeGraphics()
1634 {
1635   InitGraphicInfo();                    /* graphic properties mapping */
1636   InitElementGraphicInfo();             /* element game graphic mapping */
1637   InitElementSpecialGraphicInfo();      /* element special graphic mapping */
1638
1639   InitElementSmallImages();             /* scale images to all needed sizes */
1640   InitFontGraphicInfo();                /* initialize text drawing functions */
1641
1642   InitGraphicInfo_EM();                 /* graphic mapping for EM engine */
1643
1644   SetMainBackgroundImage(IMG_BACKGROUND);
1645   SetDoorBackgroundImage(IMG_BACKGROUND_DOOR);
1646
1647   InitGadgets();
1648   InitToons();
1649 }
1650
1651 static void ReinitializeSounds()
1652 {
1653   InitSoundInfo();              /* sound properties mapping */
1654   InitElementSoundInfo();       /* element game sound mapping */
1655   InitGameModeSoundInfo();      /* game mode sound mapping */
1656
1657   InitPlayLevelSound();         /* internal game sound settings */
1658 }
1659
1660 static void ReinitializeMusic()
1661 {
1662   InitMusicInfo();              /* music properties mapping */
1663   InitGameModeMusicInfo();      /* game mode music mapping */
1664 }
1665
1666 static int get_special_property_bit(int element, int property_bit_nr)
1667 {
1668   struct PropertyBitInfo
1669   {
1670     int element;
1671     int bit_nr;
1672   };
1673
1674   static struct PropertyBitInfo pb_can_move_into_acid[] =
1675   {
1676     /* the player may be able fall into acid when gravity is activated */
1677     { EL_PLAYER_1,              0       },
1678     { EL_PLAYER_2,              0       },
1679     { EL_PLAYER_3,              0       },
1680     { EL_PLAYER_4,              0       },
1681     { EL_SP_MURPHY,             0       },
1682     { EL_SOKOBAN_FIELD_PLAYER,  0       },
1683
1684     /* all elements that can move may be able to also move into acid */
1685     { EL_BUG,                   1       },
1686     { EL_BUG_LEFT,              1       },
1687     { EL_BUG_RIGHT,             1       },
1688     { EL_BUG_UP,                1       },
1689     { EL_BUG_DOWN,              1       },
1690     { EL_SPACESHIP,             2       },
1691     { EL_SPACESHIP_LEFT,        2       },
1692     { EL_SPACESHIP_RIGHT,       2       },
1693     { EL_SPACESHIP_UP,          2       },
1694     { EL_SPACESHIP_DOWN,        2       },
1695     { EL_BD_BUTTERFLY,          3       },
1696     { EL_BD_BUTTERFLY_LEFT,     3       },
1697     { EL_BD_BUTTERFLY_RIGHT,    3       },
1698     { EL_BD_BUTTERFLY_UP,       3       },
1699     { EL_BD_BUTTERFLY_DOWN,     3       },
1700     { EL_BD_FIREFLY,            4       },
1701     { EL_BD_FIREFLY_LEFT,       4       },
1702     { EL_BD_FIREFLY_RIGHT,      4       },
1703     { EL_BD_FIREFLY_UP,         4       },
1704     { EL_BD_FIREFLY_DOWN,       4       },
1705     { EL_YAMYAM,                5       },
1706     { EL_DARK_YAMYAM,           6       },
1707     { EL_ROBOT,                 7       },
1708     { EL_PACMAN,                8       },
1709     { EL_PACMAN_LEFT,           8       },
1710     { EL_PACMAN_RIGHT,          8       },
1711     { EL_PACMAN_UP,             8       },
1712     { EL_PACMAN_DOWN,           8       },
1713     { EL_MOLE,                  9       },
1714     { EL_MOLE_LEFT,             9       },
1715     { EL_MOLE_RIGHT,            9       },
1716     { EL_MOLE_UP,               9       },
1717     { EL_MOLE_DOWN,             9       },
1718     { EL_PENGUIN,               10      },
1719     { EL_PIG,                   11      },
1720     { EL_DRAGON,                12      },
1721     { EL_SATELLITE,             13      },
1722     { EL_SP_SNIKSNAK,           14      },
1723     { EL_SP_ELECTRON,           15      },
1724     { EL_BALLOON,               16      },
1725     { EL_SPRING,                17      },
1726     { EL_EMC_ANDROID,           18      },
1727
1728     { -1,                       -1      },
1729   };
1730
1731   static struct PropertyBitInfo pb_dont_collide_with[] =
1732   {
1733     { EL_SP_SNIKSNAK,           0       },
1734     { EL_SP_ELECTRON,           1       },
1735
1736     { -1,                       -1      },
1737   };
1738
1739   static struct
1740   {
1741     int bit_nr;
1742     struct PropertyBitInfo *pb_info;
1743   } pb_definition[] =
1744   {
1745     { EP_CAN_MOVE_INTO_ACID,    pb_can_move_into_acid   },
1746     { EP_DONT_COLLIDE_WITH,     pb_dont_collide_with    },
1747
1748     { -1,                       NULL                    },
1749   };
1750
1751   struct PropertyBitInfo *pb_info = NULL;
1752   int i;
1753
1754   for (i = 0; pb_definition[i].bit_nr != -1; i++)
1755     if (pb_definition[i].bit_nr == property_bit_nr)
1756       pb_info = pb_definition[i].pb_info;
1757
1758   if (pb_info == NULL)
1759     return -1;
1760
1761   for (i = 0; pb_info[i].element != -1; i++)
1762     if (pb_info[i].element == element)
1763       return pb_info[i].bit_nr;
1764
1765   return -1;
1766 }
1767
1768 void setBitfieldProperty(int *bitfield, int property_bit_nr, int element,
1769                          boolean property_value)
1770 {
1771   int bit_nr = get_special_property_bit(element, property_bit_nr);
1772
1773   if (bit_nr > -1)
1774   {
1775     if (property_value)
1776       *bitfield |=  (1 << bit_nr);
1777     else
1778       *bitfield &= ~(1 << bit_nr);
1779   }
1780 }
1781
1782 boolean getBitfieldProperty(int *bitfield, int property_bit_nr, int element)
1783 {
1784   int bit_nr = get_special_property_bit(element, property_bit_nr);
1785
1786   if (bit_nr > -1)
1787     return ((*bitfield & (1 << bit_nr)) != 0);
1788
1789   return FALSE;
1790 }
1791
1792 #if 1
1793 static void resolve_group_element(int group_element, int recursion_depth)
1794 {
1795   static int group_nr;
1796   static struct ElementGroupInfo *group;
1797   struct ElementGroupInfo *actual_group = element_info[group_element].group;
1798   int i;
1799
1800   if (actual_group == NULL)                     /* not yet initialized */
1801     return;
1802
1803   if (recursion_depth > NUM_GROUP_ELEMENTS)     /* recursion too deep */
1804   {
1805     Error(ERR_WARN, "recursion too deep when resolving group element %d",
1806           group_element - EL_GROUP_START + 1);
1807
1808     /* replace element which caused too deep recursion by question mark */
1809     group->element_resolved[group->num_elements_resolved++] = EL_UNKNOWN;
1810
1811     return;
1812   }
1813
1814   if (recursion_depth == 0)                     /* initialization */
1815   {
1816     group = actual_group;
1817     group_nr = group_element - EL_GROUP_START;
1818
1819     group->num_elements_resolved = 0;
1820     group->choice_pos = 0;
1821   }
1822
1823   for (i = 0; i < actual_group->num_elements; i++)
1824   {
1825     int element = actual_group->element[i];
1826
1827     if (group->num_elements_resolved == NUM_FILE_ELEMENTS)
1828       break;
1829
1830     if (IS_GROUP_ELEMENT(element))
1831       resolve_group_element(element, recursion_depth + 1);
1832     else
1833     {
1834       group->element_resolved[group->num_elements_resolved++] = element;
1835       element_info[element].in_group[group_nr] = TRUE;
1836     }
1837   }
1838 }
1839 #endif
1840
1841 void InitElementPropertiesStatic()
1842 {
1843   static int ep_diggable[] =
1844   {
1845     EL_SAND,
1846     EL_SP_BASE,
1847     EL_SP_BUGGY_BASE,
1848     EL_SP_BUGGY_BASE_ACTIVATING,
1849     EL_TRAP,
1850     EL_INVISIBLE_SAND,
1851     EL_INVISIBLE_SAND_ACTIVE,
1852     EL_EMC_GRASS,
1853
1854     /* !!! currently not diggable, but handled by 'ep_dont_run_into' !!! */
1855     /* (if amoeba can grow into anything diggable, maybe keep these out) */
1856 #if 0
1857     EL_LANDMINE,
1858     EL_TRAP_ACTIVE,
1859     EL_SP_BUGGY_BASE_ACTIVE,
1860     EL_EMC_PLANT,
1861 #endif
1862
1863     -1
1864   };
1865
1866   static int ep_collectible_only[] =
1867   {
1868     EL_BD_DIAMOND,
1869     EL_EMERALD,
1870     EL_DIAMOND,
1871     EL_EMERALD_YELLOW,
1872     EL_EMERALD_RED,
1873     EL_EMERALD_PURPLE,
1874     EL_KEY_1,
1875     EL_KEY_2,
1876     EL_KEY_3,
1877     EL_KEY_4,
1878     EL_EM_KEY_1,
1879     EL_EM_KEY_2,
1880     EL_EM_KEY_3,
1881     EL_EM_KEY_4,
1882     EL_EMC_KEY_5,
1883     EL_EMC_KEY_6,
1884     EL_EMC_KEY_7,
1885     EL_EMC_KEY_8,
1886     EL_DYNAMITE,
1887     EL_DYNABOMB_INCREASE_NUMBER,
1888     EL_DYNABOMB_INCREASE_SIZE,
1889     EL_DYNABOMB_INCREASE_POWER,
1890     EL_SP_INFOTRON,
1891     EL_SP_DISK_RED,
1892     EL_PEARL,
1893     EL_CRYSTAL,
1894     EL_KEY_WHITE,
1895     EL_SHIELD_NORMAL,
1896     EL_SHIELD_DEADLY,
1897     EL_EXTRA_TIME,
1898     EL_ENVELOPE_1,
1899     EL_ENVELOPE_2,
1900     EL_ENVELOPE_3,
1901     EL_ENVELOPE_4,
1902     EL_SPEED_PILL,
1903     EL_EMC_LENSES,
1904     EL_EMC_MAGNIFIER,
1905
1906     -1
1907   };
1908
1909   static int ep_dont_run_into[] =
1910   {
1911     /* same elements as in 'ep_dont_touch' */
1912     EL_BUG,
1913     EL_SPACESHIP,
1914     EL_BD_BUTTERFLY,
1915     EL_BD_FIREFLY,
1916
1917     /* same elements as in 'ep_dont_collide_with' */
1918     EL_YAMYAM,
1919     EL_DARK_YAMYAM,
1920     EL_ROBOT,
1921     EL_PACMAN,
1922     EL_SP_SNIKSNAK,
1923     EL_SP_ELECTRON,
1924
1925     /* new elements */
1926     EL_AMOEBA_DROP,
1927     EL_ACID,
1928
1929     /* !!! maybe this should better be handled by 'ep_diggable' !!! */
1930 #if 1
1931     EL_LANDMINE,
1932     EL_TRAP_ACTIVE,
1933     EL_SP_BUGGY_BASE_ACTIVE,
1934     EL_EMC_PLANT,
1935 #endif
1936
1937     -1
1938   };
1939
1940   static int ep_dont_collide_with[] =
1941   {
1942     /* same elements as in 'ep_dont_touch' */
1943     EL_BUG,
1944     EL_SPACESHIP,
1945     EL_BD_BUTTERFLY,
1946     EL_BD_FIREFLY,
1947
1948     /* new elements */
1949     EL_YAMYAM,
1950     EL_DARK_YAMYAM,
1951     EL_ROBOT,
1952     EL_PACMAN,
1953     EL_SP_SNIKSNAK,
1954     EL_SP_ELECTRON,
1955
1956     -1
1957   };
1958
1959   static int ep_dont_touch[] =
1960   {
1961     EL_BUG,
1962     EL_SPACESHIP,
1963     EL_BD_BUTTERFLY,
1964     EL_BD_FIREFLY,
1965
1966     -1
1967   };
1968
1969   static int ep_indestructible[] =
1970   {
1971     EL_STEELWALL,
1972     EL_ACID,
1973     EL_ACID_POOL_TOPLEFT,
1974     EL_ACID_POOL_TOPRIGHT,
1975     EL_ACID_POOL_BOTTOMLEFT,
1976     EL_ACID_POOL_BOTTOM,
1977     EL_ACID_POOL_BOTTOMRIGHT,
1978     EL_SP_HARDWARE_GRAY,
1979     EL_SP_HARDWARE_GREEN,
1980     EL_SP_HARDWARE_BLUE,
1981     EL_SP_HARDWARE_RED,
1982     EL_SP_HARDWARE_YELLOW,
1983     EL_SP_HARDWARE_BASE_1,
1984     EL_SP_HARDWARE_BASE_2,
1985     EL_SP_HARDWARE_BASE_3,
1986     EL_SP_HARDWARE_BASE_4,
1987     EL_SP_HARDWARE_BASE_5,
1988     EL_SP_HARDWARE_BASE_6,
1989     EL_INVISIBLE_STEELWALL,
1990     EL_INVISIBLE_STEELWALL_ACTIVE,
1991     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1992     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1993     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1994     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1995     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1996     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1997     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1998     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1999     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2000     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2001     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2002     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2003     EL_LIGHT_SWITCH,
2004     EL_LIGHT_SWITCH_ACTIVE,
2005     EL_SIGN_EXCLAMATION,
2006     EL_SIGN_RADIOACTIVITY,
2007     EL_SIGN_STOP,
2008     EL_SIGN_WHEELCHAIR,
2009     EL_SIGN_PARKING,
2010     EL_SIGN_ONEWAY,
2011     EL_SIGN_HEART,
2012     EL_SIGN_TRIANGLE,
2013     EL_SIGN_ROUND,
2014     EL_SIGN_EXIT,
2015     EL_SIGN_YINYANG,
2016     EL_SIGN_OTHER,
2017     EL_STEELWALL_SLIPPERY,
2018     EL_EMC_STEELWALL_1,
2019     EL_EMC_STEELWALL_2,
2020     EL_EMC_STEELWALL_3,
2021     EL_EMC_STEELWALL_4,
2022     EL_CRYSTAL,
2023     EL_GATE_1,
2024     EL_GATE_2,
2025     EL_GATE_3,
2026     EL_GATE_4,
2027     EL_GATE_1_GRAY,
2028     EL_GATE_2_GRAY,
2029     EL_GATE_3_GRAY,
2030     EL_GATE_4_GRAY,
2031     EL_GATE_1_GRAY_ACTIVE,
2032     EL_GATE_2_GRAY_ACTIVE,
2033     EL_GATE_3_GRAY_ACTIVE,
2034     EL_GATE_4_GRAY_ACTIVE,
2035     EL_EM_GATE_1,
2036     EL_EM_GATE_2,
2037     EL_EM_GATE_3,
2038     EL_EM_GATE_4,
2039     EL_EM_GATE_1_GRAY,
2040     EL_EM_GATE_2_GRAY,
2041     EL_EM_GATE_3_GRAY,
2042     EL_EM_GATE_4_GRAY,
2043     EL_EM_GATE_1_GRAY_ACTIVE,
2044     EL_EM_GATE_2_GRAY_ACTIVE,
2045     EL_EM_GATE_3_GRAY_ACTIVE,
2046     EL_EM_GATE_4_GRAY_ACTIVE,
2047     EL_EMC_GATE_5,
2048     EL_EMC_GATE_6,
2049     EL_EMC_GATE_7,
2050     EL_EMC_GATE_8,
2051     EL_EMC_GATE_5_GRAY,
2052     EL_EMC_GATE_6_GRAY,
2053     EL_EMC_GATE_7_GRAY,
2054     EL_EMC_GATE_8_GRAY,
2055     EL_EMC_GATE_5_GRAY_ACTIVE,
2056     EL_EMC_GATE_6_GRAY_ACTIVE,
2057     EL_EMC_GATE_7_GRAY_ACTIVE,
2058     EL_EMC_GATE_8_GRAY_ACTIVE,
2059     EL_SWITCHGATE_OPEN,
2060     EL_SWITCHGATE_OPENING,
2061     EL_SWITCHGATE_CLOSED,
2062     EL_SWITCHGATE_CLOSING,
2063 #if 0
2064     EL_SWITCHGATE_SWITCH_UP,
2065     EL_SWITCHGATE_SWITCH_DOWN,
2066 #endif
2067     EL_TIMEGATE_OPEN,
2068     EL_TIMEGATE_OPENING,
2069     EL_TIMEGATE_CLOSED,
2070     EL_TIMEGATE_CLOSING,
2071 #if 0
2072     EL_TIMEGATE_SWITCH,
2073     EL_TIMEGATE_SWITCH_ACTIVE,
2074 #endif
2075     EL_TUBE_ANY,
2076     EL_TUBE_VERTICAL,
2077     EL_TUBE_HORIZONTAL,
2078     EL_TUBE_VERTICAL_LEFT,
2079     EL_TUBE_VERTICAL_RIGHT,
2080     EL_TUBE_HORIZONTAL_UP,
2081     EL_TUBE_HORIZONTAL_DOWN,
2082     EL_TUBE_LEFT_UP,
2083     EL_TUBE_LEFT_DOWN,
2084     EL_TUBE_RIGHT_UP,
2085     EL_TUBE_RIGHT_DOWN,
2086
2087     -1
2088   };
2089
2090   static int ep_slippery[] =
2091   {
2092     EL_WALL_SLIPPERY,
2093     EL_BD_WALL,
2094     EL_ROCK,
2095     EL_BD_ROCK,
2096     EL_EMERALD,
2097     EL_BD_DIAMOND,
2098     EL_EMERALD_YELLOW,
2099     EL_EMERALD_RED,
2100     EL_EMERALD_PURPLE,
2101     EL_DIAMOND,
2102     EL_BOMB,
2103     EL_NUT,
2104     EL_ROBOT_WHEEL_ACTIVE,
2105     EL_ROBOT_WHEEL,
2106     EL_TIME_ORB_FULL,
2107     EL_TIME_ORB_EMPTY,
2108     EL_LAMP_ACTIVE,
2109     EL_LAMP,
2110     EL_ACID_POOL_TOPLEFT,
2111     EL_ACID_POOL_TOPRIGHT,
2112     EL_SATELLITE,
2113     EL_SP_ZONK,
2114     EL_SP_INFOTRON,
2115     EL_SP_CHIP_SINGLE,
2116     EL_SP_CHIP_LEFT,
2117     EL_SP_CHIP_RIGHT,
2118     EL_SP_CHIP_TOP,
2119     EL_SP_CHIP_BOTTOM,
2120     EL_SPEED_PILL,
2121     EL_STEELWALL_SLIPPERY,
2122     EL_PEARL,
2123     EL_CRYSTAL,
2124     EL_EMC_WALL_SLIPPERY_1,
2125     EL_EMC_WALL_SLIPPERY_2,
2126     EL_EMC_WALL_SLIPPERY_3,
2127     EL_EMC_WALL_SLIPPERY_4,
2128     EL_EMC_MAGIC_BALL,
2129     EL_EMC_MAGIC_BALL_ACTIVE,
2130
2131     -1
2132   };
2133
2134   static int ep_can_change[] =
2135   {
2136     -1
2137   };
2138
2139   static int ep_can_move[] =
2140   {
2141     /* same elements as in 'pb_can_move_into_acid' */
2142     EL_BUG,
2143     EL_SPACESHIP,
2144     EL_BD_BUTTERFLY,
2145     EL_BD_FIREFLY,
2146     EL_YAMYAM,
2147     EL_DARK_YAMYAM,
2148     EL_ROBOT,
2149     EL_PACMAN,
2150     EL_MOLE,
2151     EL_PENGUIN,
2152     EL_PIG,
2153     EL_DRAGON,
2154     EL_SATELLITE,
2155     EL_SP_SNIKSNAK,
2156     EL_SP_ELECTRON,
2157     EL_BALLOON,
2158     EL_SPRING,
2159     EL_EMC_ANDROID,
2160
2161     -1
2162   };
2163
2164   static int ep_can_fall[] =
2165   {
2166     EL_ROCK,
2167     EL_BD_ROCK,
2168     EL_EMERALD,
2169     EL_BD_DIAMOND,
2170     EL_EMERALD_YELLOW,
2171     EL_EMERALD_RED,
2172     EL_EMERALD_PURPLE,
2173     EL_DIAMOND,
2174     EL_BOMB,
2175     EL_NUT,
2176     EL_AMOEBA_DROP,
2177     EL_QUICKSAND_FULL,
2178     EL_MAGIC_WALL_FULL,
2179     EL_BD_MAGIC_WALL_FULL,
2180     EL_TIME_ORB_FULL,
2181     EL_TIME_ORB_EMPTY,
2182     EL_SP_ZONK,
2183     EL_SP_INFOTRON,
2184     EL_SP_DISK_ORANGE,
2185     EL_PEARL,
2186     EL_CRYSTAL,
2187     EL_SPRING,
2188     EL_DX_SUPABOMB,
2189
2190     -1
2191   };
2192
2193   static int ep_can_smash_player[] =
2194   {
2195     EL_ROCK,
2196     EL_BD_ROCK,
2197     EL_EMERALD,
2198     EL_BD_DIAMOND,
2199     EL_EMERALD_YELLOW,
2200     EL_EMERALD_RED,
2201     EL_EMERALD_PURPLE,
2202     EL_DIAMOND,
2203     EL_BOMB,
2204     EL_NUT,
2205     EL_AMOEBA_DROP,
2206     EL_TIME_ORB_FULL,
2207     EL_TIME_ORB_EMPTY,
2208     EL_SP_ZONK,
2209     EL_SP_INFOTRON,
2210     EL_SP_DISK_ORANGE,
2211     EL_PEARL,
2212     EL_CRYSTAL,
2213     EL_SPRING,
2214     EL_DX_SUPABOMB,
2215
2216     -1
2217   };
2218
2219   static int ep_can_smash_enemies[] =
2220   {
2221     EL_ROCK,
2222     EL_BD_ROCK,
2223     EL_SP_ZONK,
2224
2225     -1
2226   };
2227
2228   static int ep_can_smash_everything[] =
2229   {
2230     EL_ROCK,
2231     EL_BD_ROCK,
2232     EL_SP_ZONK,
2233
2234     -1
2235   };
2236
2237   static int ep_explodes_by_fire[] =
2238   {
2239     /* same elements as in 'ep_explodes_impact' */
2240     EL_BOMB,
2241     EL_SP_DISK_ORANGE,
2242     EL_DX_SUPABOMB,
2243
2244     /* same elements as in 'ep_explodes_smashed' */
2245     EL_SATELLITE,
2246     EL_PIG,
2247     EL_DRAGON,
2248     EL_MOLE,
2249
2250     /* new elements */
2251     EL_DYNAMITE_ACTIVE,
2252     EL_DYNAMITE,
2253     EL_DYNABOMB_PLAYER_1_ACTIVE,
2254     EL_DYNABOMB_PLAYER_2_ACTIVE,
2255     EL_DYNABOMB_PLAYER_3_ACTIVE,
2256     EL_DYNABOMB_PLAYER_4_ACTIVE,
2257     EL_DYNABOMB_INCREASE_NUMBER,
2258     EL_DYNABOMB_INCREASE_SIZE,
2259     EL_DYNABOMB_INCREASE_POWER,
2260     EL_SP_DISK_RED_ACTIVE,
2261     EL_BUG,
2262     EL_PENGUIN,
2263     EL_SP_DISK_RED,
2264     EL_SP_DISK_YELLOW,
2265     EL_SP_SNIKSNAK,
2266     EL_SP_ELECTRON,
2267 #if 0
2268     EL_BLACK_ORB,
2269 #endif
2270
2271     -1
2272   };
2273
2274   static int ep_explodes_smashed[] =
2275   {
2276     /* same elements as in 'ep_explodes_impact' */
2277     EL_BOMB,
2278     EL_SP_DISK_ORANGE,
2279     EL_DX_SUPABOMB,
2280
2281     /* new elements */
2282     EL_SATELLITE,
2283     EL_PIG,
2284     EL_DRAGON,
2285     EL_MOLE,
2286
2287     -1
2288   };
2289
2290   static int ep_explodes_impact[] =
2291   {
2292     EL_BOMB,
2293     EL_SP_DISK_ORANGE,
2294     EL_DX_SUPABOMB,
2295
2296     -1
2297   };
2298
2299   static int ep_walkable_over[] =
2300   {
2301     EL_EMPTY_SPACE,
2302     EL_SP_EMPTY_SPACE,
2303     EL_SOKOBAN_FIELD_EMPTY,
2304     EL_EXIT_OPEN,
2305     EL_SP_EXIT_OPEN,
2306     EL_SP_EXIT_OPENING,
2307     EL_GATE_1,
2308     EL_GATE_2,
2309     EL_GATE_3,
2310     EL_GATE_4,
2311     EL_GATE_1_GRAY,
2312     EL_GATE_2_GRAY,
2313     EL_GATE_3_GRAY,
2314     EL_GATE_4_GRAY,
2315     EL_GATE_1_GRAY_ACTIVE,
2316     EL_GATE_2_GRAY_ACTIVE,
2317     EL_GATE_3_GRAY_ACTIVE,
2318     EL_GATE_4_GRAY_ACTIVE,
2319     EL_PENGUIN,
2320     EL_PIG,
2321     EL_DRAGON,
2322
2323     -1
2324   };
2325
2326   static int ep_walkable_inside[] =
2327   {
2328     EL_TUBE_ANY,
2329     EL_TUBE_VERTICAL,
2330     EL_TUBE_HORIZONTAL,
2331     EL_TUBE_VERTICAL_LEFT,
2332     EL_TUBE_VERTICAL_RIGHT,
2333     EL_TUBE_HORIZONTAL_UP,
2334     EL_TUBE_HORIZONTAL_DOWN,
2335     EL_TUBE_LEFT_UP,
2336     EL_TUBE_LEFT_DOWN,
2337     EL_TUBE_RIGHT_UP,
2338     EL_TUBE_RIGHT_DOWN,
2339
2340     -1
2341   };
2342
2343   static int ep_walkable_under[] =
2344   {
2345     -1
2346   };
2347
2348   static int ep_passable_over[] =
2349   {
2350     EL_EM_GATE_1,
2351     EL_EM_GATE_2,
2352     EL_EM_GATE_3,
2353     EL_EM_GATE_4,
2354     EL_EM_GATE_1_GRAY,
2355     EL_EM_GATE_2_GRAY,
2356     EL_EM_GATE_3_GRAY,
2357     EL_EM_GATE_4_GRAY,
2358     EL_EM_GATE_1_GRAY_ACTIVE,
2359     EL_EM_GATE_2_GRAY_ACTIVE,
2360     EL_EM_GATE_3_GRAY_ACTIVE,
2361     EL_EM_GATE_4_GRAY_ACTIVE,
2362     EL_EMC_GATE_5,
2363     EL_EMC_GATE_6,
2364     EL_EMC_GATE_7,
2365     EL_EMC_GATE_8,
2366     EL_EMC_GATE_5_GRAY,
2367     EL_EMC_GATE_6_GRAY,
2368     EL_EMC_GATE_7_GRAY,
2369     EL_EMC_GATE_8_GRAY,
2370     EL_EMC_GATE_5_GRAY_ACTIVE,
2371     EL_EMC_GATE_6_GRAY_ACTIVE,
2372     EL_EMC_GATE_7_GRAY_ACTIVE,
2373     EL_EMC_GATE_8_GRAY_ACTIVE,
2374     EL_SWITCHGATE_OPEN,
2375     EL_TIMEGATE_OPEN,
2376
2377     -1
2378   };
2379
2380   static int ep_passable_inside[] =
2381   {
2382     EL_SP_PORT_LEFT,
2383     EL_SP_PORT_RIGHT,
2384     EL_SP_PORT_UP,
2385     EL_SP_PORT_DOWN,
2386     EL_SP_PORT_HORIZONTAL,
2387     EL_SP_PORT_VERTICAL,
2388     EL_SP_PORT_ANY,
2389     EL_SP_GRAVITY_PORT_LEFT,
2390     EL_SP_GRAVITY_PORT_RIGHT,
2391     EL_SP_GRAVITY_PORT_UP,
2392     EL_SP_GRAVITY_PORT_DOWN,
2393     EL_SP_GRAVITY_ON_PORT_LEFT,
2394     EL_SP_GRAVITY_ON_PORT_RIGHT,
2395     EL_SP_GRAVITY_ON_PORT_UP,
2396     EL_SP_GRAVITY_ON_PORT_DOWN,
2397     EL_SP_GRAVITY_OFF_PORT_LEFT,
2398     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2399     EL_SP_GRAVITY_OFF_PORT_UP,
2400     EL_SP_GRAVITY_OFF_PORT_DOWN,
2401
2402     -1
2403   };
2404
2405   static int ep_passable_under[] =
2406   {
2407     -1
2408   };
2409
2410   static int ep_droppable[] =
2411   {
2412     -1
2413   };
2414
2415   static int ep_explodes_1x1_old[] =
2416   {
2417     -1
2418   };
2419
2420   static int ep_pushable[] =
2421   {
2422     EL_ROCK,
2423     EL_BOMB,
2424     EL_DX_SUPABOMB,
2425     EL_NUT,
2426     EL_TIME_ORB_EMPTY,
2427     EL_SP_ZONK,
2428     EL_SP_DISK_ORANGE,
2429     EL_SPRING,
2430     EL_BD_ROCK,
2431     EL_SOKOBAN_OBJECT,
2432     EL_SOKOBAN_FIELD_FULL,
2433     EL_SATELLITE,
2434     EL_SP_DISK_YELLOW,
2435     EL_BALLOON,
2436     EL_EMC_ANDROID,
2437
2438     -1
2439   };
2440
2441   static int ep_explodes_cross_old[] =
2442   {
2443     -1
2444   };
2445
2446   static int ep_protected[] =
2447   {
2448     /* same elements as in 'ep_walkable_inside' */
2449     EL_TUBE_ANY,
2450     EL_TUBE_VERTICAL,
2451     EL_TUBE_HORIZONTAL,
2452     EL_TUBE_VERTICAL_LEFT,
2453     EL_TUBE_VERTICAL_RIGHT,
2454     EL_TUBE_HORIZONTAL_UP,
2455     EL_TUBE_HORIZONTAL_DOWN,
2456     EL_TUBE_LEFT_UP,
2457     EL_TUBE_LEFT_DOWN,
2458     EL_TUBE_RIGHT_UP,
2459     EL_TUBE_RIGHT_DOWN,
2460
2461     /* same elements as in 'ep_passable_over' */
2462     EL_EM_GATE_1,
2463     EL_EM_GATE_2,
2464     EL_EM_GATE_3,
2465     EL_EM_GATE_4,
2466     EL_EM_GATE_1_GRAY,
2467     EL_EM_GATE_2_GRAY,
2468     EL_EM_GATE_3_GRAY,
2469     EL_EM_GATE_4_GRAY,
2470     EL_EM_GATE_1_GRAY_ACTIVE,
2471     EL_EM_GATE_2_GRAY_ACTIVE,
2472     EL_EM_GATE_3_GRAY_ACTIVE,
2473     EL_EM_GATE_4_GRAY_ACTIVE,
2474     EL_EMC_GATE_5,
2475     EL_EMC_GATE_6,
2476     EL_EMC_GATE_7,
2477     EL_EMC_GATE_8,
2478     EL_EMC_GATE_5_GRAY,
2479     EL_EMC_GATE_6_GRAY,
2480     EL_EMC_GATE_7_GRAY,
2481     EL_EMC_GATE_8_GRAY,
2482     EL_EMC_GATE_5_GRAY_ACTIVE,
2483     EL_EMC_GATE_6_GRAY_ACTIVE,
2484     EL_EMC_GATE_7_GRAY_ACTIVE,
2485     EL_EMC_GATE_8_GRAY_ACTIVE,
2486     EL_SWITCHGATE_OPEN,
2487     EL_TIMEGATE_OPEN,
2488
2489     /* same elements as in 'ep_passable_inside' */
2490     EL_SP_PORT_LEFT,
2491     EL_SP_PORT_RIGHT,
2492     EL_SP_PORT_UP,
2493     EL_SP_PORT_DOWN,
2494     EL_SP_PORT_HORIZONTAL,
2495     EL_SP_PORT_VERTICAL,
2496     EL_SP_PORT_ANY,
2497     EL_SP_GRAVITY_PORT_LEFT,
2498     EL_SP_GRAVITY_PORT_RIGHT,
2499     EL_SP_GRAVITY_PORT_UP,
2500     EL_SP_GRAVITY_PORT_DOWN,
2501     EL_SP_GRAVITY_ON_PORT_LEFT,
2502     EL_SP_GRAVITY_ON_PORT_RIGHT,
2503     EL_SP_GRAVITY_ON_PORT_UP,
2504     EL_SP_GRAVITY_ON_PORT_DOWN,
2505     EL_SP_GRAVITY_OFF_PORT_LEFT,
2506     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2507     EL_SP_GRAVITY_OFF_PORT_UP,
2508     EL_SP_GRAVITY_OFF_PORT_DOWN,
2509
2510     -1
2511   };
2512
2513   static int ep_throwable[] =
2514   {
2515     -1
2516   };
2517
2518   static int ep_can_explode[] =
2519   {
2520     /* same elements as in 'ep_explodes_impact' */
2521     EL_BOMB,
2522     EL_SP_DISK_ORANGE,
2523     EL_DX_SUPABOMB,
2524
2525     /* same elements as in 'ep_explodes_smashed' */
2526     EL_SATELLITE,
2527     EL_PIG,
2528     EL_DRAGON,
2529     EL_MOLE,
2530
2531     /* elements that can explode by explosion or by dragonfire */
2532     EL_DYNAMITE_ACTIVE,
2533     EL_DYNAMITE,
2534     EL_DYNABOMB_PLAYER_1_ACTIVE,
2535     EL_DYNABOMB_PLAYER_2_ACTIVE,
2536     EL_DYNABOMB_PLAYER_3_ACTIVE,
2537     EL_DYNABOMB_PLAYER_4_ACTIVE,
2538     EL_DYNABOMB_INCREASE_NUMBER,
2539     EL_DYNABOMB_INCREASE_SIZE,
2540     EL_DYNABOMB_INCREASE_POWER,
2541     EL_SP_DISK_RED_ACTIVE,
2542     EL_BUG,
2543     EL_PENGUIN,
2544     EL_SP_DISK_RED,
2545     EL_SP_DISK_YELLOW,
2546     EL_SP_SNIKSNAK,
2547     EL_SP_ELECTRON,
2548
2549     /* elements that can explode only by explosion */
2550     EL_BLACK_ORB,
2551
2552     -1
2553   };
2554
2555   static int ep_gravity_reachable[] =
2556   {
2557     EL_SAND,
2558     EL_SP_BASE,
2559     EL_TRAP,
2560     EL_INVISIBLE_SAND,
2561     EL_INVISIBLE_SAND_ACTIVE,
2562     EL_SP_PORT_LEFT,
2563     EL_SP_PORT_RIGHT,
2564     EL_SP_PORT_UP,
2565     EL_SP_PORT_DOWN,
2566     EL_SP_PORT_HORIZONTAL,
2567     EL_SP_PORT_VERTICAL,
2568     EL_SP_PORT_ANY,
2569     EL_SP_GRAVITY_PORT_LEFT,
2570     EL_SP_GRAVITY_PORT_RIGHT,
2571     EL_SP_GRAVITY_PORT_UP,
2572     EL_SP_GRAVITY_PORT_DOWN,
2573     EL_SP_GRAVITY_ON_PORT_LEFT,
2574     EL_SP_GRAVITY_ON_PORT_RIGHT,
2575     EL_SP_GRAVITY_ON_PORT_UP,
2576     EL_SP_GRAVITY_ON_PORT_DOWN,
2577     EL_SP_GRAVITY_OFF_PORT_LEFT,
2578     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2579     EL_SP_GRAVITY_OFF_PORT_UP,
2580     EL_SP_GRAVITY_OFF_PORT_DOWN,
2581     EL_EMC_GRASS,
2582
2583     -1
2584   };
2585
2586   static int ep_player[] =
2587   {
2588     EL_PLAYER_1,
2589     EL_PLAYER_2,
2590     EL_PLAYER_3,
2591     EL_PLAYER_4,
2592     EL_SP_MURPHY,
2593     EL_SOKOBAN_FIELD_PLAYER,
2594     EL_TRIGGER_PLAYER,
2595
2596     -1
2597   };
2598
2599   static int ep_can_pass_magic_wall[] =
2600   {
2601     EL_ROCK,
2602     EL_BD_ROCK,
2603     EL_EMERALD,
2604     EL_BD_DIAMOND,
2605     EL_EMERALD_YELLOW,
2606     EL_EMERALD_RED,
2607     EL_EMERALD_PURPLE,
2608     EL_DIAMOND,
2609
2610     -1
2611   };
2612
2613   static int ep_switchable[] =
2614   {
2615     EL_ROBOT_WHEEL,
2616     EL_SP_TERMINAL,
2617     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2618     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2619     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2620     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2621     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2622     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2623     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2624     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2625     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2626     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2627     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2628     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2629     EL_SWITCHGATE_SWITCH_UP,
2630     EL_SWITCHGATE_SWITCH_DOWN,
2631     EL_LIGHT_SWITCH,
2632     EL_LIGHT_SWITCH_ACTIVE,
2633     EL_TIMEGATE_SWITCH,
2634     EL_BALLOON_SWITCH_LEFT,
2635     EL_BALLOON_SWITCH_RIGHT,
2636     EL_BALLOON_SWITCH_UP,
2637     EL_BALLOON_SWITCH_DOWN,
2638     EL_BALLOON_SWITCH_ANY,
2639     EL_BALLOON_SWITCH_NONE,
2640     EL_LAMP,
2641     EL_TIME_ORB_FULL,
2642     EL_EMC_MAGIC_BALL_SWITCH,
2643     EL_EMC_MAGIC_BALL_SWITCH_ACTIVE,
2644
2645     -1
2646   };
2647
2648   static int ep_bd_element[] =
2649   {
2650     EL_EMPTY,
2651     EL_SAND,
2652     EL_WALL_SLIPPERY,
2653     EL_BD_WALL,
2654     EL_ROCK,
2655     EL_BD_ROCK,
2656     EL_BD_DIAMOND,
2657     EL_BD_MAGIC_WALL,
2658     EL_EXIT_CLOSED,
2659     EL_EXIT_OPEN,
2660     EL_STEELWALL,
2661     EL_PLAYER_1,
2662     EL_PLAYER_2,
2663     EL_PLAYER_3,
2664     EL_PLAYER_4,
2665     EL_BD_FIREFLY,
2666     EL_BD_FIREFLY_1,
2667     EL_BD_FIREFLY_2,
2668     EL_BD_FIREFLY_3,
2669     EL_BD_FIREFLY_4,
2670     EL_BD_BUTTERFLY,
2671     EL_BD_BUTTERFLY_1,
2672     EL_BD_BUTTERFLY_2,
2673     EL_BD_BUTTERFLY_3,
2674     EL_BD_BUTTERFLY_4,
2675     EL_BD_AMOEBA,
2676     EL_CHAR_QUESTION,
2677     EL_UNKNOWN,
2678
2679     -1
2680   };
2681
2682   static int ep_sp_element[] =
2683   {
2684     /* should always be valid */
2685     EL_EMPTY,
2686
2687     /* standard classic Supaplex elements */
2688     EL_SP_EMPTY,
2689     EL_SP_ZONK,
2690     EL_SP_BASE,
2691     EL_SP_MURPHY,
2692     EL_SP_INFOTRON,
2693     EL_SP_CHIP_SINGLE,
2694     EL_SP_HARDWARE_GRAY,
2695     EL_SP_EXIT_CLOSED,
2696     EL_SP_EXIT_OPEN,
2697     EL_SP_DISK_ORANGE,
2698     EL_SP_PORT_RIGHT,
2699     EL_SP_PORT_DOWN,
2700     EL_SP_PORT_LEFT,
2701     EL_SP_PORT_UP,
2702     EL_SP_GRAVITY_PORT_RIGHT,
2703     EL_SP_GRAVITY_PORT_DOWN,
2704     EL_SP_GRAVITY_PORT_LEFT,
2705     EL_SP_GRAVITY_PORT_UP,
2706     EL_SP_SNIKSNAK,
2707     EL_SP_DISK_YELLOW,
2708     EL_SP_TERMINAL,
2709     EL_SP_DISK_RED,
2710     EL_SP_PORT_VERTICAL,
2711     EL_SP_PORT_HORIZONTAL,
2712     EL_SP_PORT_ANY,
2713     EL_SP_ELECTRON,
2714     EL_SP_BUGGY_BASE,
2715     EL_SP_CHIP_LEFT,
2716     EL_SP_CHIP_RIGHT,
2717     EL_SP_HARDWARE_BASE_1,
2718     EL_SP_HARDWARE_GREEN,
2719     EL_SP_HARDWARE_BLUE,
2720     EL_SP_HARDWARE_RED,
2721     EL_SP_HARDWARE_YELLOW,
2722     EL_SP_HARDWARE_BASE_2,
2723     EL_SP_HARDWARE_BASE_3,
2724     EL_SP_HARDWARE_BASE_4,
2725     EL_SP_HARDWARE_BASE_5,
2726     EL_SP_HARDWARE_BASE_6,
2727     EL_SP_CHIP_TOP,
2728     EL_SP_CHIP_BOTTOM,
2729
2730     /* additional elements that appeared in newer Supaplex levels */
2731     EL_INVISIBLE_WALL,
2732
2733     /* additional gravity port elements (not switching, but setting gravity) */
2734     EL_SP_GRAVITY_ON_PORT_LEFT,
2735     EL_SP_GRAVITY_ON_PORT_RIGHT,
2736     EL_SP_GRAVITY_ON_PORT_UP,
2737     EL_SP_GRAVITY_ON_PORT_DOWN,
2738     EL_SP_GRAVITY_OFF_PORT_LEFT,
2739     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2740     EL_SP_GRAVITY_OFF_PORT_UP,
2741     EL_SP_GRAVITY_OFF_PORT_DOWN,
2742
2743     /* more than one Murphy in a level results in an inactive clone */
2744     EL_SP_MURPHY_CLONE,
2745
2746     /* runtime Supaplex elements */
2747     EL_SP_DISK_RED_ACTIVE,
2748     EL_SP_TERMINAL_ACTIVE,
2749     EL_SP_BUGGY_BASE_ACTIVATING,
2750     EL_SP_BUGGY_BASE_ACTIVE,
2751     EL_SP_EXIT_OPENING,
2752     EL_SP_EXIT_CLOSING,
2753
2754     -1
2755   };
2756
2757   static int ep_sb_element[] =
2758   {
2759     EL_EMPTY,
2760     EL_STEELWALL,
2761     EL_SOKOBAN_OBJECT,
2762     EL_SOKOBAN_FIELD_EMPTY,
2763     EL_SOKOBAN_FIELD_FULL,
2764     EL_SOKOBAN_FIELD_PLAYER,
2765     EL_PLAYER_1,
2766     EL_PLAYER_2,
2767     EL_PLAYER_3,
2768     EL_PLAYER_4,
2769     EL_INVISIBLE_STEELWALL,
2770
2771     -1
2772   };
2773
2774   static int ep_gem[] =
2775   {
2776     EL_BD_DIAMOND,
2777     EL_EMERALD,
2778     EL_EMERALD_YELLOW,
2779     EL_EMERALD_RED,
2780     EL_EMERALD_PURPLE,
2781     EL_DIAMOND,
2782
2783     -1
2784   };
2785
2786   static int ep_food_dark_yamyam[] =
2787   {
2788     EL_SAND,
2789     EL_BUG,
2790     EL_SPACESHIP,
2791     EL_BD_BUTTERFLY,
2792     EL_BD_FIREFLY,
2793     EL_YAMYAM,
2794     EL_ROBOT,
2795     EL_PACMAN,
2796     EL_AMOEBA_DROP,
2797     EL_AMOEBA_DEAD,
2798     EL_AMOEBA_WET,
2799     EL_AMOEBA_DRY,
2800     EL_AMOEBA_FULL,
2801     EL_BD_AMOEBA,
2802     EL_EMERALD,
2803     EL_BD_DIAMOND,
2804     EL_EMERALD_YELLOW,
2805     EL_EMERALD_RED,
2806     EL_EMERALD_PURPLE,
2807     EL_DIAMOND,
2808     EL_PEARL,
2809     EL_CRYSTAL,
2810
2811     -1
2812   };
2813
2814   static int ep_food_penguin[] =
2815   {
2816     EL_EMERALD,
2817     EL_BD_DIAMOND,
2818     EL_EMERALD_YELLOW,
2819     EL_EMERALD_RED,
2820     EL_EMERALD_PURPLE,
2821     EL_DIAMOND,
2822     EL_PEARL,
2823     EL_CRYSTAL,
2824
2825     -1
2826   };
2827
2828   static int ep_food_pig[] =
2829   {
2830     EL_EMERALD,
2831     EL_BD_DIAMOND,
2832     EL_EMERALD_YELLOW,
2833     EL_EMERALD_RED,
2834     EL_EMERALD_PURPLE,
2835     EL_DIAMOND,
2836
2837     -1
2838   };
2839
2840   static int ep_historic_wall[] =
2841   {
2842     EL_STEELWALL,
2843     EL_GATE_1,
2844     EL_GATE_2,
2845     EL_GATE_3,
2846     EL_GATE_4,
2847     EL_GATE_1_GRAY,
2848     EL_GATE_2_GRAY,
2849     EL_GATE_3_GRAY,
2850     EL_GATE_4_GRAY,
2851     EL_GATE_1_GRAY_ACTIVE,
2852     EL_GATE_2_GRAY_ACTIVE,
2853     EL_GATE_3_GRAY_ACTIVE,
2854     EL_GATE_4_GRAY_ACTIVE,
2855     EL_EM_GATE_1,
2856     EL_EM_GATE_2,
2857     EL_EM_GATE_3,
2858     EL_EM_GATE_4,
2859     EL_EM_GATE_1_GRAY,
2860     EL_EM_GATE_2_GRAY,
2861     EL_EM_GATE_3_GRAY,
2862     EL_EM_GATE_4_GRAY,
2863     EL_EM_GATE_1_GRAY_ACTIVE,
2864     EL_EM_GATE_2_GRAY_ACTIVE,
2865     EL_EM_GATE_3_GRAY_ACTIVE,
2866     EL_EM_GATE_4_GRAY_ACTIVE,
2867     EL_EXIT_CLOSED,
2868     EL_EXIT_OPENING,
2869     EL_EXIT_OPEN,
2870     EL_WALL,
2871     EL_WALL_SLIPPERY,
2872     EL_EXPANDABLE_WALL,
2873     EL_EXPANDABLE_WALL_HORIZONTAL,
2874     EL_EXPANDABLE_WALL_VERTICAL,
2875     EL_EXPANDABLE_WALL_ANY,
2876     EL_EXPANDABLE_WALL_GROWING,
2877     EL_BD_WALL,
2878     EL_SP_CHIP_SINGLE,
2879     EL_SP_CHIP_LEFT,
2880     EL_SP_CHIP_RIGHT,
2881     EL_SP_CHIP_TOP,
2882     EL_SP_CHIP_BOTTOM,
2883     EL_SP_HARDWARE_GRAY,
2884     EL_SP_HARDWARE_GREEN,
2885     EL_SP_HARDWARE_BLUE,
2886     EL_SP_HARDWARE_RED,
2887     EL_SP_HARDWARE_YELLOW,
2888     EL_SP_HARDWARE_BASE_1,
2889     EL_SP_HARDWARE_BASE_2,
2890     EL_SP_HARDWARE_BASE_3,
2891     EL_SP_HARDWARE_BASE_4,
2892     EL_SP_HARDWARE_BASE_5,
2893     EL_SP_HARDWARE_BASE_6,
2894     EL_SP_TERMINAL,
2895     EL_SP_TERMINAL_ACTIVE,
2896     EL_SP_EXIT_CLOSED,
2897     EL_SP_EXIT_OPEN,
2898     EL_INVISIBLE_STEELWALL,
2899     EL_INVISIBLE_STEELWALL_ACTIVE,
2900     EL_INVISIBLE_WALL,
2901     EL_INVISIBLE_WALL_ACTIVE,
2902     EL_STEELWALL_SLIPPERY,
2903     EL_EMC_STEELWALL_1,
2904     EL_EMC_STEELWALL_2,
2905     EL_EMC_STEELWALL_3,
2906     EL_EMC_STEELWALL_4,
2907     EL_EMC_WALL_1,
2908     EL_EMC_WALL_2,
2909     EL_EMC_WALL_3,
2910     EL_EMC_WALL_4,
2911     EL_EMC_WALL_5,
2912     EL_EMC_WALL_6,
2913     EL_EMC_WALL_7,
2914     EL_EMC_WALL_8,
2915
2916     -1
2917   };
2918
2919   static int ep_historic_solid[] =
2920   {
2921     EL_WALL,
2922     EL_EXPANDABLE_WALL,
2923     EL_EXPANDABLE_WALL_HORIZONTAL,
2924     EL_EXPANDABLE_WALL_VERTICAL,
2925     EL_EXPANDABLE_WALL_ANY,
2926     EL_BD_WALL,
2927     EL_WALL_SLIPPERY,
2928     EL_EXIT_CLOSED,
2929     EL_EXIT_OPENING,
2930     EL_EXIT_OPEN,
2931     EL_AMOEBA_DEAD,
2932     EL_AMOEBA_WET,
2933     EL_AMOEBA_DRY,
2934     EL_AMOEBA_FULL,
2935     EL_BD_AMOEBA,
2936     EL_QUICKSAND_EMPTY,
2937     EL_QUICKSAND_FULL,
2938     EL_QUICKSAND_FILLING,
2939     EL_QUICKSAND_EMPTYING,
2940     EL_MAGIC_WALL,
2941     EL_MAGIC_WALL_ACTIVE,
2942     EL_MAGIC_WALL_EMPTYING,
2943     EL_MAGIC_WALL_FILLING,
2944     EL_MAGIC_WALL_FULL,
2945     EL_MAGIC_WALL_DEAD,
2946     EL_BD_MAGIC_WALL,
2947     EL_BD_MAGIC_WALL_ACTIVE,
2948     EL_BD_MAGIC_WALL_EMPTYING,
2949     EL_BD_MAGIC_WALL_FULL,
2950     EL_BD_MAGIC_WALL_FILLING,
2951     EL_BD_MAGIC_WALL_DEAD,
2952     EL_GAME_OF_LIFE,
2953     EL_BIOMAZE,
2954     EL_SP_CHIP_SINGLE,
2955     EL_SP_CHIP_LEFT,
2956     EL_SP_CHIP_RIGHT,
2957     EL_SP_CHIP_TOP,
2958     EL_SP_CHIP_BOTTOM,
2959     EL_SP_TERMINAL,
2960     EL_SP_TERMINAL_ACTIVE,
2961     EL_SP_EXIT_CLOSED,
2962     EL_SP_EXIT_OPEN,
2963     EL_INVISIBLE_WALL,
2964     EL_INVISIBLE_WALL_ACTIVE,
2965     EL_SWITCHGATE_SWITCH_UP,
2966     EL_SWITCHGATE_SWITCH_DOWN,
2967     EL_TIMEGATE_SWITCH,
2968     EL_TIMEGATE_SWITCH_ACTIVE,
2969     EL_EMC_WALL_1,
2970     EL_EMC_WALL_2,
2971     EL_EMC_WALL_3,
2972     EL_EMC_WALL_4,
2973     EL_EMC_WALL_5,
2974     EL_EMC_WALL_6,
2975     EL_EMC_WALL_7,
2976     EL_EMC_WALL_8,
2977     EL_WALL_PEARL,
2978     EL_WALL_CRYSTAL,
2979
2980     /* the following elements are a direct copy of "indestructible" elements,
2981        except "EL_ACID", which is "indestructible", but not "solid"! */
2982 #if 0
2983     EL_ACID,
2984 #endif
2985     EL_STEELWALL,
2986     EL_ACID_POOL_TOPLEFT,
2987     EL_ACID_POOL_TOPRIGHT,
2988     EL_ACID_POOL_BOTTOMLEFT,
2989     EL_ACID_POOL_BOTTOM,
2990     EL_ACID_POOL_BOTTOMRIGHT,
2991     EL_SP_HARDWARE_GRAY,
2992     EL_SP_HARDWARE_GREEN,
2993     EL_SP_HARDWARE_BLUE,
2994     EL_SP_HARDWARE_RED,
2995     EL_SP_HARDWARE_YELLOW,
2996     EL_SP_HARDWARE_BASE_1,
2997     EL_SP_HARDWARE_BASE_2,
2998     EL_SP_HARDWARE_BASE_3,
2999     EL_SP_HARDWARE_BASE_4,
3000     EL_SP_HARDWARE_BASE_5,
3001     EL_SP_HARDWARE_BASE_6,
3002     EL_INVISIBLE_STEELWALL,
3003     EL_INVISIBLE_STEELWALL_ACTIVE,
3004     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3005     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3006     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3007     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3008     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3009     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3010     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3011     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3012     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3013     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3014     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3015     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3016     EL_LIGHT_SWITCH,
3017     EL_LIGHT_SWITCH_ACTIVE,
3018     EL_SIGN_EXCLAMATION,
3019     EL_SIGN_RADIOACTIVITY,
3020     EL_SIGN_STOP,
3021     EL_SIGN_WHEELCHAIR,
3022     EL_SIGN_PARKING,
3023     EL_SIGN_ONEWAY,
3024     EL_SIGN_HEART,
3025     EL_SIGN_TRIANGLE,
3026     EL_SIGN_ROUND,
3027     EL_SIGN_EXIT,
3028     EL_SIGN_YINYANG,
3029     EL_SIGN_OTHER,
3030     EL_STEELWALL_SLIPPERY,
3031     EL_EMC_STEELWALL_1,
3032     EL_EMC_STEELWALL_2,
3033     EL_EMC_STEELWALL_3,
3034     EL_EMC_STEELWALL_4,
3035     EL_CRYSTAL,
3036     EL_GATE_1,
3037     EL_GATE_2,
3038     EL_GATE_3,
3039     EL_GATE_4,
3040     EL_GATE_1_GRAY,
3041     EL_GATE_2_GRAY,
3042     EL_GATE_3_GRAY,
3043     EL_GATE_4_GRAY,
3044     EL_GATE_1_GRAY_ACTIVE,
3045     EL_GATE_2_GRAY_ACTIVE,
3046     EL_GATE_3_GRAY_ACTIVE,
3047     EL_GATE_4_GRAY_ACTIVE,
3048     EL_EM_GATE_1,
3049     EL_EM_GATE_2,
3050     EL_EM_GATE_3,
3051     EL_EM_GATE_4,
3052     EL_EM_GATE_1_GRAY,
3053     EL_EM_GATE_2_GRAY,
3054     EL_EM_GATE_3_GRAY,
3055     EL_EM_GATE_4_GRAY,
3056     EL_EM_GATE_1_GRAY_ACTIVE,
3057     EL_EM_GATE_2_GRAY_ACTIVE,
3058     EL_EM_GATE_3_GRAY_ACTIVE,
3059     EL_EM_GATE_4_GRAY_ACTIVE,
3060     EL_SWITCHGATE_OPEN,
3061     EL_SWITCHGATE_OPENING,
3062     EL_SWITCHGATE_CLOSED,
3063     EL_SWITCHGATE_CLOSING,
3064     EL_TIMEGATE_OPEN,
3065     EL_TIMEGATE_OPENING,
3066     EL_TIMEGATE_CLOSED,
3067     EL_TIMEGATE_CLOSING,
3068     EL_TUBE_ANY,
3069     EL_TUBE_VERTICAL,
3070     EL_TUBE_HORIZONTAL,
3071     EL_TUBE_VERTICAL_LEFT,
3072     EL_TUBE_VERTICAL_RIGHT,
3073     EL_TUBE_HORIZONTAL_UP,
3074     EL_TUBE_HORIZONTAL_DOWN,
3075     EL_TUBE_LEFT_UP,
3076     EL_TUBE_LEFT_DOWN,
3077     EL_TUBE_RIGHT_UP,
3078     EL_TUBE_RIGHT_DOWN,
3079
3080     -1
3081   };
3082
3083   static int ep_classic_enemy[] =
3084   {
3085     EL_BUG,
3086     EL_SPACESHIP,
3087     EL_BD_BUTTERFLY,
3088     EL_BD_FIREFLY,
3089
3090     EL_YAMYAM,
3091     EL_DARK_YAMYAM,
3092     EL_ROBOT,
3093     EL_PACMAN,
3094     EL_SP_SNIKSNAK,
3095     EL_SP_ELECTRON,
3096
3097     -1
3098   };
3099
3100   static int ep_belt[] =
3101   {
3102     EL_CONVEYOR_BELT_1_LEFT,
3103     EL_CONVEYOR_BELT_1_MIDDLE,
3104     EL_CONVEYOR_BELT_1_RIGHT,
3105     EL_CONVEYOR_BELT_2_LEFT,
3106     EL_CONVEYOR_BELT_2_MIDDLE,
3107     EL_CONVEYOR_BELT_2_RIGHT,
3108     EL_CONVEYOR_BELT_3_LEFT,
3109     EL_CONVEYOR_BELT_3_MIDDLE,
3110     EL_CONVEYOR_BELT_3_RIGHT,
3111     EL_CONVEYOR_BELT_4_LEFT,
3112     EL_CONVEYOR_BELT_4_MIDDLE,
3113     EL_CONVEYOR_BELT_4_RIGHT,
3114
3115     -1
3116   };
3117
3118   static int ep_belt_active[] =
3119   {
3120     EL_CONVEYOR_BELT_1_LEFT_ACTIVE,
3121     EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE,
3122     EL_CONVEYOR_BELT_1_RIGHT_ACTIVE,
3123     EL_CONVEYOR_BELT_2_LEFT_ACTIVE,
3124     EL_CONVEYOR_BELT_2_MIDDLE_ACTIVE,
3125     EL_CONVEYOR_BELT_2_RIGHT_ACTIVE,
3126     EL_CONVEYOR_BELT_3_LEFT_ACTIVE,
3127     EL_CONVEYOR_BELT_3_MIDDLE_ACTIVE,
3128     EL_CONVEYOR_BELT_3_RIGHT_ACTIVE,
3129     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
3130     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
3131     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
3132
3133     -1
3134   };
3135
3136   static int ep_belt_switch[] =
3137   {
3138     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3139     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3140     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3141     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3142     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3143     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3144     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3145     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3146     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3147     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3148     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3149     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3150
3151     -1
3152   };
3153
3154   static int ep_tube[] =
3155   {
3156     EL_TUBE_LEFT_UP,
3157     EL_TUBE_LEFT_DOWN,
3158     EL_TUBE_RIGHT_UP,
3159     EL_TUBE_RIGHT_DOWN,
3160     EL_TUBE_HORIZONTAL,
3161     EL_TUBE_HORIZONTAL_UP,
3162     EL_TUBE_HORIZONTAL_DOWN,
3163     EL_TUBE_VERTICAL,
3164     EL_TUBE_VERTICAL_LEFT,
3165     EL_TUBE_VERTICAL_RIGHT,
3166     EL_TUBE_ANY,
3167
3168     -1
3169   };
3170
3171   static int ep_keygate[] =
3172   {
3173     EL_GATE_1,
3174     EL_GATE_2,
3175     EL_GATE_3,
3176     EL_GATE_4,
3177     EL_GATE_1_GRAY,
3178     EL_GATE_2_GRAY,
3179     EL_GATE_3_GRAY,
3180     EL_GATE_4_GRAY,
3181     EL_GATE_1_GRAY_ACTIVE,
3182     EL_GATE_2_GRAY_ACTIVE,
3183     EL_GATE_3_GRAY_ACTIVE,
3184     EL_GATE_4_GRAY_ACTIVE,
3185     EL_EM_GATE_1,
3186     EL_EM_GATE_2,
3187     EL_EM_GATE_3,
3188     EL_EM_GATE_4,
3189     EL_EM_GATE_1_GRAY,
3190     EL_EM_GATE_2_GRAY,
3191     EL_EM_GATE_3_GRAY,
3192     EL_EM_GATE_4_GRAY,
3193     EL_EM_GATE_1_GRAY_ACTIVE,
3194     EL_EM_GATE_2_GRAY_ACTIVE,
3195     EL_EM_GATE_3_GRAY_ACTIVE,
3196     EL_EM_GATE_4_GRAY_ACTIVE,
3197     EL_EMC_GATE_5,
3198     EL_EMC_GATE_6,
3199     EL_EMC_GATE_7,
3200     EL_EMC_GATE_8,
3201     EL_EMC_GATE_5_GRAY,
3202     EL_EMC_GATE_6_GRAY,
3203     EL_EMC_GATE_7_GRAY,
3204     EL_EMC_GATE_8_GRAY,
3205     EL_EMC_GATE_5_GRAY_ACTIVE,
3206     EL_EMC_GATE_6_GRAY_ACTIVE,
3207     EL_EMC_GATE_7_GRAY_ACTIVE,
3208     EL_EMC_GATE_8_GRAY_ACTIVE,
3209
3210     -1
3211   };
3212
3213   static int ep_amoeboid[] =
3214   {
3215     EL_AMOEBA_DEAD,
3216     EL_AMOEBA_WET,
3217     EL_AMOEBA_DRY,
3218     EL_AMOEBA_FULL,
3219     EL_BD_AMOEBA,
3220     EL_EMC_DRIPPER,
3221
3222     -1
3223   };
3224
3225   static int ep_amoebalive[] =
3226   {
3227     EL_AMOEBA_WET,
3228     EL_AMOEBA_DRY,
3229     EL_AMOEBA_FULL,
3230     EL_BD_AMOEBA,
3231     EL_EMC_DRIPPER,
3232
3233     -1
3234   };
3235
3236   static int ep_has_editor_content[] =
3237   {
3238     EL_PLAYER_1,
3239     EL_PLAYER_2,
3240     EL_PLAYER_3,
3241     EL_PLAYER_4,
3242     EL_SP_MURPHY,
3243     EL_YAMYAM,
3244     EL_AMOEBA_WET,
3245     EL_AMOEBA_DRY,
3246     EL_AMOEBA_FULL,
3247     EL_BD_AMOEBA,
3248     EL_EMC_MAGIC_BALL,
3249     EL_EMC_ANDROID,
3250
3251     -1
3252   };
3253
3254   static int ep_can_turn_each_move[] =
3255   {
3256     /* !!! do something with this one !!! */
3257     -1
3258   };
3259
3260   static int ep_can_grow[] =
3261   {
3262     EL_BD_AMOEBA,
3263     EL_AMOEBA_DROP,
3264     EL_AMOEBA_WET,
3265     EL_AMOEBA_DRY,
3266     EL_AMOEBA_FULL,
3267     EL_GAME_OF_LIFE,
3268     EL_BIOMAZE,
3269     EL_EMC_DRIPPER,
3270
3271     -1
3272   };
3273
3274   static int ep_active_bomb[] =
3275   {
3276     EL_DYNAMITE_ACTIVE,
3277     EL_DYNABOMB_PLAYER_1_ACTIVE,
3278     EL_DYNABOMB_PLAYER_2_ACTIVE,
3279     EL_DYNABOMB_PLAYER_3_ACTIVE,
3280     EL_DYNABOMB_PLAYER_4_ACTIVE,
3281     EL_SP_DISK_RED_ACTIVE,
3282
3283     -1
3284   };
3285
3286   static int ep_inactive[] =
3287   {
3288     EL_EMPTY,
3289     EL_SAND,
3290     EL_WALL,
3291     EL_BD_WALL,
3292     EL_WALL_SLIPPERY,
3293     EL_STEELWALL,
3294     EL_AMOEBA_DEAD,
3295     EL_QUICKSAND_EMPTY,
3296     EL_STONEBLOCK,
3297     EL_ROBOT_WHEEL,
3298     EL_KEY_1,
3299     EL_KEY_2,
3300     EL_KEY_3,
3301     EL_KEY_4,
3302     EL_EM_KEY_1,
3303     EL_EM_KEY_2,
3304     EL_EM_KEY_3,
3305     EL_EM_KEY_4,
3306     EL_EMC_KEY_5,
3307     EL_EMC_KEY_6,
3308     EL_EMC_KEY_7,
3309     EL_EMC_KEY_8,
3310     EL_GATE_1,
3311     EL_GATE_2,
3312     EL_GATE_3,
3313     EL_GATE_4,
3314     EL_GATE_1_GRAY,
3315     EL_GATE_2_GRAY,
3316     EL_GATE_3_GRAY,
3317     EL_GATE_4_GRAY,
3318     EL_GATE_1_GRAY_ACTIVE,
3319     EL_GATE_2_GRAY_ACTIVE,
3320     EL_GATE_3_GRAY_ACTIVE,
3321     EL_GATE_4_GRAY_ACTIVE,
3322     EL_EM_GATE_1,
3323     EL_EM_GATE_2,
3324     EL_EM_GATE_3,
3325     EL_EM_GATE_4,
3326     EL_EM_GATE_1_GRAY,
3327     EL_EM_GATE_2_GRAY,
3328     EL_EM_GATE_3_GRAY,
3329     EL_EM_GATE_4_GRAY,
3330     EL_EM_GATE_1_GRAY_ACTIVE,
3331     EL_EM_GATE_2_GRAY_ACTIVE,
3332     EL_EM_GATE_3_GRAY_ACTIVE,
3333     EL_EM_GATE_4_GRAY_ACTIVE,
3334     EL_EMC_GATE_5,
3335     EL_EMC_GATE_6,
3336     EL_EMC_GATE_7,
3337     EL_EMC_GATE_8,
3338     EL_EMC_GATE_5_GRAY,
3339     EL_EMC_GATE_6_GRAY,
3340     EL_EMC_GATE_7_GRAY,
3341     EL_EMC_GATE_8_GRAY,
3342     EL_EMC_GATE_5_GRAY_ACTIVE,
3343     EL_EMC_GATE_6_GRAY_ACTIVE,
3344     EL_EMC_GATE_7_GRAY_ACTIVE,
3345     EL_EMC_GATE_8_GRAY_ACTIVE,
3346     EL_DYNAMITE,
3347     EL_INVISIBLE_STEELWALL,
3348     EL_INVISIBLE_WALL,
3349     EL_INVISIBLE_SAND,
3350     EL_LAMP,
3351     EL_LAMP_ACTIVE,
3352     EL_WALL_EMERALD,
3353     EL_WALL_DIAMOND,
3354     EL_WALL_BD_DIAMOND,
3355     EL_WALL_EMERALD_YELLOW,
3356     EL_DYNABOMB_INCREASE_NUMBER,
3357     EL_DYNABOMB_INCREASE_SIZE,
3358     EL_DYNABOMB_INCREASE_POWER,
3359 #if 0
3360     EL_SOKOBAN_OBJECT,
3361 #endif
3362     EL_SOKOBAN_FIELD_EMPTY,
3363     EL_SOKOBAN_FIELD_FULL,
3364     EL_WALL_EMERALD_RED,
3365     EL_WALL_EMERALD_PURPLE,
3366     EL_ACID_POOL_TOPLEFT,
3367     EL_ACID_POOL_TOPRIGHT,
3368     EL_ACID_POOL_BOTTOMLEFT,
3369     EL_ACID_POOL_BOTTOM,
3370     EL_ACID_POOL_BOTTOMRIGHT,
3371     EL_MAGIC_WALL,
3372     EL_MAGIC_WALL_DEAD,
3373     EL_BD_MAGIC_WALL,
3374     EL_BD_MAGIC_WALL_DEAD,
3375     EL_AMOEBA_TO_DIAMOND,
3376     EL_BLOCKED,
3377     EL_SP_EMPTY,
3378     EL_SP_BASE,
3379     EL_SP_PORT_RIGHT,
3380     EL_SP_PORT_DOWN,
3381     EL_SP_PORT_LEFT,
3382     EL_SP_PORT_UP,
3383     EL_SP_GRAVITY_PORT_RIGHT,
3384     EL_SP_GRAVITY_PORT_DOWN,
3385     EL_SP_GRAVITY_PORT_LEFT,
3386     EL_SP_GRAVITY_PORT_UP,
3387     EL_SP_PORT_HORIZONTAL,
3388     EL_SP_PORT_VERTICAL,
3389     EL_SP_PORT_ANY,
3390     EL_SP_DISK_RED,
3391 #if 0
3392     EL_SP_DISK_YELLOW,
3393 #endif
3394     EL_SP_CHIP_SINGLE,
3395     EL_SP_CHIP_LEFT,
3396     EL_SP_CHIP_RIGHT,
3397     EL_SP_CHIP_TOP,
3398     EL_SP_CHIP_BOTTOM,
3399     EL_SP_HARDWARE_GRAY,
3400     EL_SP_HARDWARE_GREEN,
3401     EL_SP_HARDWARE_BLUE,
3402     EL_SP_HARDWARE_RED,
3403     EL_SP_HARDWARE_YELLOW,
3404     EL_SP_HARDWARE_BASE_1,
3405     EL_SP_HARDWARE_BASE_2,
3406     EL_SP_HARDWARE_BASE_3,
3407     EL_SP_HARDWARE_BASE_4,
3408     EL_SP_HARDWARE_BASE_5,
3409     EL_SP_HARDWARE_BASE_6,
3410     EL_SP_GRAVITY_ON_PORT_LEFT,
3411     EL_SP_GRAVITY_ON_PORT_RIGHT,
3412     EL_SP_GRAVITY_ON_PORT_UP,
3413     EL_SP_GRAVITY_ON_PORT_DOWN,
3414     EL_SP_GRAVITY_OFF_PORT_LEFT,
3415     EL_SP_GRAVITY_OFF_PORT_RIGHT,
3416     EL_SP_GRAVITY_OFF_PORT_UP,
3417     EL_SP_GRAVITY_OFF_PORT_DOWN,
3418     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3419     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3420     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3421     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3422     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3423     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3424     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3425     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3426     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3427     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3428     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3429     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3430     EL_SIGN_EXCLAMATION,
3431     EL_SIGN_RADIOACTIVITY,
3432     EL_SIGN_STOP,
3433     EL_SIGN_WHEELCHAIR,
3434     EL_SIGN_PARKING,
3435     EL_SIGN_ONEWAY,
3436     EL_SIGN_HEART,
3437     EL_SIGN_TRIANGLE,
3438     EL_SIGN_ROUND,
3439     EL_SIGN_EXIT,
3440     EL_SIGN_YINYANG,
3441     EL_SIGN_OTHER,
3442     EL_STEELWALL_SLIPPERY,
3443     EL_EMC_STEELWALL_1,
3444     EL_EMC_STEELWALL_2,
3445     EL_EMC_STEELWALL_3,
3446     EL_EMC_STEELWALL_4,
3447     EL_EMC_WALL_SLIPPERY_1,
3448     EL_EMC_WALL_SLIPPERY_2,
3449     EL_EMC_WALL_SLIPPERY_3,
3450     EL_EMC_WALL_SLIPPERY_4,
3451     EL_EMC_WALL_1,
3452     EL_EMC_WALL_2,
3453     EL_EMC_WALL_3,
3454     EL_EMC_WALL_4,
3455     EL_EMC_WALL_5,
3456     EL_EMC_WALL_6,
3457     EL_EMC_WALL_7,
3458     EL_EMC_WALL_8,
3459     EL_EMC_WALL_9,
3460     EL_EMC_WALL_10,
3461     EL_EMC_WALL_11,
3462     EL_EMC_WALL_12,
3463     EL_EMC_WALL_13,
3464     EL_EMC_WALL_14,
3465     EL_EMC_WALL_15,
3466     EL_EMC_WALL_16,
3467
3468     -1
3469   };
3470
3471   static int ep_em_slippery_wall[] =
3472   {
3473     -1
3474   };
3475
3476   static int ep_gfx_crumbled[] =
3477   {
3478     EL_SAND,
3479     EL_LANDMINE,
3480     EL_TRAP,
3481     EL_TRAP_ACTIVE,
3482
3483     -1
3484   };
3485
3486   static int ep_editor_cascade_active[] =
3487   {
3488     EL_INTERNAL_CASCADE_BD_ACTIVE,
3489     EL_INTERNAL_CASCADE_EM_ACTIVE,
3490     EL_INTERNAL_CASCADE_EMC_ACTIVE,
3491     EL_INTERNAL_CASCADE_RND_ACTIVE,
3492     EL_INTERNAL_CASCADE_SB_ACTIVE,
3493     EL_INTERNAL_CASCADE_SP_ACTIVE,
3494     EL_INTERNAL_CASCADE_DC_ACTIVE,
3495     EL_INTERNAL_CASCADE_DX_ACTIVE,
3496     EL_INTERNAL_CASCADE_CHARS_ACTIVE,
3497     EL_INTERNAL_CASCADE_CE_ACTIVE,
3498     EL_INTERNAL_CASCADE_GE_ACTIVE,
3499     EL_INTERNAL_CASCADE_USER_ACTIVE,
3500     EL_INTERNAL_CASCADE_GENERIC_ACTIVE,
3501     EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
3502
3503     -1
3504   };
3505
3506   static int ep_editor_cascade_inactive[] =
3507   {
3508     EL_INTERNAL_CASCADE_BD,
3509     EL_INTERNAL_CASCADE_EM,
3510     EL_INTERNAL_CASCADE_EMC,
3511     EL_INTERNAL_CASCADE_RND,
3512     EL_INTERNAL_CASCADE_SB,
3513     EL_INTERNAL_CASCADE_SP,
3514     EL_INTERNAL_CASCADE_DC,
3515     EL_INTERNAL_CASCADE_DX,
3516     EL_INTERNAL_CASCADE_CHARS,
3517     EL_INTERNAL_CASCADE_CE,
3518     EL_INTERNAL_CASCADE_GE,
3519     EL_INTERNAL_CASCADE_USER,
3520     EL_INTERNAL_CASCADE_GENERIC,
3521     EL_INTERNAL_CASCADE_DYNAMIC,
3522
3523     -1
3524   };
3525
3526   static struct
3527   {
3528     int *elements;
3529     int property;
3530   } element_properties[] =
3531   {
3532     { ep_diggable,                      EP_DIGGABLE                     },
3533     { ep_collectible_only,              EP_COLLECTIBLE_ONLY             },
3534     { ep_dont_run_into,                 EP_DONT_RUN_INTO                },
3535     { ep_dont_collide_with,             EP_DONT_COLLIDE_WITH            },
3536     { ep_dont_touch,                    EP_DONT_TOUCH                   },
3537     { ep_indestructible,                EP_INDESTRUCTIBLE               },
3538     { ep_slippery,                      EP_SLIPPERY                     },
3539     { ep_can_change,                    EP_CAN_CHANGE                   },
3540     { ep_can_move,                      EP_CAN_MOVE                     },
3541     { ep_can_fall,                      EP_CAN_FALL                     },
3542     { ep_can_smash_player,              EP_CAN_SMASH_PLAYER             },
3543     { ep_can_smash_enemies,             EP_CAN_SMASH_ENEMIES            },
3544     { ep_can_smash_everything,          EP_CAN_SMASH_EVERYTHING         },
3545     { ep_explodes_by_fire,              EP_EXPLODES_BY_FIRE             },
3546     { ep_explodes_smashed,              EP_EXPLODES_SMASHED             },
3547     { ep_explodes_impact,               EP_EXPLODES_IMPACT              },
3548     { ep_walkable_over,                 EP_WALKABLE_OVER                },
3549     { ep_walkable_inside,               EP_WALKABLE_INSIDE              },
3550     { ep_walkable_under,                EP_WALKABLE_UNDER               },
3551     { ep_passable_over,                 EP_PASSABLE_OVER                },
3552     { ep_passable_inside,               EP_PASSABLE_INSIDE              },
3553     { ep_passable_under,                EP_PASSABLE_UNDER               },
3554     { ep_droppable,                     EP_DROPPABLE                    },
3555     { ep_explodes_1x1_old,              EP_EXPLODES_1X1_OLD             },
3556     { ep_pushable,                      EP_PUSHABLE                     },
3557     { ep_explodes_cross_old,            EP_EXPLODES_CROSS_OLD           },
3558     { ep_protected,                     EP_PROTECTED                    },
3559     { ep_throwable,                     EP_THROWABLE                    },
3560     { ep_can_explode,                   EP_CAN_EXPLODE                  },
3561     { ep_gravity_reachable,             EP_GRAVITY_REACHABLE            },
3562
3563     { ep_player,                        EP_PLAYER                       },
3564     { ep_can_pass_magic_wall,           EP_CAN_PASS_MAGIC_WALL          },
3565     { ep_switchable,                    EP_SWITCHABLE                   },
3566     { ep_bd_element,                    EP_BD_ELEMENT                   },
3567     { ep_sp_element,                    EP_SP_ELEMENT                   },
3568     { ep_sb_element,                    EP_SB_ELEMENT                   },
3569     { ep_gem,                           EP_GEM                          },
3570     { ep_food_dark_yamyam,              EP_FOOD_DARK_YAMYAM             },
3571     { ep_food_penguin,                  EP_FOOD_PENGUIN                 },
3572     { ep_food_pig,                      EP_FOOD_PIG                     },
3573     { ep_historic_wall,                 EP_HISTORIC_WALL                },
3574     { ep_historic_solid,                EP_HISTORIC_SOLID               },
3575     { ep_classic_enemy,                 EP_CLASSIC_ENEMY                },
3576     { ep_belt,                          EP_BELT                         },
3577     { ep_belt_active,                   EP_BELT_ACTIVE                  },
3578     { ep_belt_switch,                   EP_BELT_SWITCH                  },
3579     { ep_tube,                          EP_TUBE                         },
3580     { ep_keygate,                       EP_KEYGATE                      },
3581     { ep_amoeboid,                      EP_AMOEBOID                     },
3582     { ep_amoebalive,                    EP_AMOEBALIVE                   },
3583     { ep_has_editor_content,            EP_HAS_EDITOR_CONTENT           },
3584     { ep_can_turn_each_move,            EP_CAN_TURN_EACH_MOVE           },
3585     { ep_can_grow,                      EP_CAN_GROW                     },
3586     { ep_active_bomb,                   EP_ACTIVE_BOMB                  },
3587     { ep_inactive,                      EP_INACTIVE                     },
3588
3589     { ep_em_slippery_wall,              EP_EM_SLIPPERY_WALL             },
3590
3591     { ep_gfx_crumbled,                  EP_GFX_CRUMBLED                 },
3592
3593     { ep_editor_cascade_active,         EP_EDITOR_CASCADE_ACTIVE        },
3594     { ep_editor_cascade_inactive,       EP_EDITOR_CASCADE_INACTIVE      },
3595
3596     { NULL,                             -1                              }
3597   };
3598
3599   int i, j, k;
3600
3601   /* always start with reliable default values (element has no properties) */
3602   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3603     for (j = 0; j < NUM_ELEMENT_PROPERTIES; j++)
3604       SET_PROPERTY(i, j, FALSE);
3605
3606   /* set all base element properties from above array definitions */
3607   for (i = 0; element_properties[i].elements != NULL; i++)
3608     for (j = 0; (element_properties[i].elements)[j] != -1; j++)
3609       SET_PROPERTY((element_properties[i].elements)[j],
3610                    element_properties[i].property, TRUE);
3611
3612   /* copy properties to some elements that are only stored in level file */
3613   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
3614     for (j = 0; copy_properties[j][0] != -1; j++)
3615       if (HAS_PROPERTY(copy_properties[j][0], i))
3616         for (k = 1; k <= 4; k++)
3617           SET_PROPERTY(copy_properties[j][k], i, TRUE);
3618 }
3619
3620 void InitElementPropertiesEngine(int engine_version)
3621 {
3622   static int no_wall_properties[] =
3623   {
3624     EP_DIGGABLE,
3625     EP_COLLECTIBLE_ONLY,
3626     EP_DONT_RUN_INTO,
3627     EP_DONT_COLLIDE_WITH,
3628     EP_CAN_MOVE,
3629     EP_CAN_FALL,
3630     EP_CAN_SMASH_PLAYER,
3631     EP_CAN_SMASH_ENEMIES,
3632     EP_CAN_SMASH_EVERYTHING,
3633     EP_PUSHABLE,
3634
3635     EP_PLAYER,
3636     EP_GEM,
3637     EP_FOOD_DARK_YAMYAM,
3638     EP_FOOD_PENGUIN,
3639     EP_BELT,
3640     EP_BELT_ACTIVE,
3641     EP_TUBE,
3642     EP_AMOEBOID,
3643     EP_AMOEBALIVE,
3644     EP_ACTIVE_BOMB,
3645
3646     EP_ACCESSIBLE,
3647
3648     -1
3649   };
3650
3651   int i, j;
3652
3653   /* important: after initialization in InitElementPropertiesStatic(), the
3654      elements are not again initialized to a default value; therefore all
3655      changes have to make sure that they leave the element with a defined
3656      property (which means that conditional property changes must be set to
3657      a reliable default value before) */
3658
3659 #if 1
3660   /* ---------- recursively resolve group elements ------------------------- */
3661
3662   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3663     for (j = 0; j < NUM_GROUP_ELEMENTS; j++)
3664       element_info[i].in_group[j] = FALSE;
3665
3666   for (i = 0; i < NUM_GROUP_ELEMENTS; i++)
3667     resolve_group_element(EL_GROUP_START + i, 0);
3668 #endif
3669
3670   /* set all special, combined or engine dependent element properties */
3671   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3672   {
3673     /* ---------- INACTIVE ------------------------------------------------- */
3674     SET_PROPERTY(i, EP_INACTIVE, (i >= EL_CHAR_START && i <= EL_CHAR_END));
3675
3676     /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
3677     SET_PROPERTY(i, EP_WALKABLE, (IS_WALKABLE_OVER(i) ||
3678                                   IS_WALKABLE_INSIDE(i) ||
3679                                   IS_WALKABLE_UNDER(i)));
3680
3681     SET_PROPERTY(i, EP_PASSABLE, (IS_PASSABLE_OVER(i) ||
3682                                   IS_PASSABLE_INSIDE(i) ||
3683                                   IS_PASSABLE_UNDER(i)));
3684
3685     SET_PROPERTY(i, EP_ACCESSIBLE_OVER, (IS_WALKABLE_OVER(i) ||
3686                                          IS_PASSABLE_OVER(i)));
3687
3688     SET_PROPERTY(i, EP_ACCESSIBLE_INSIDE, (IS_WALKABLE_INSIDE(i) ||
3689                                            IS_PASSABLE_INSIDE(i)));
3690
3691     SET_PROPERTY(i, EP_ACCESSIBLE_UNDER, (IS_WALKABLE_UNDER(i) ||
3692                                           IS_PASSABLE_UNDER(i)));
3693
3694     SET_PROPERTY(i, EP_ACCESSIBLE, (IS_WALKABLE(i) ||
3695                                     IS_PASSABLE(i)));
3696
3697     /* ---------- COLLECTIBLE ---------------------------------------------- */
3698     SET_PROPERTY(i, EP_COLLECTIBLE, (IS_COLLECTIBLE_ONLY(i) ||
3699                                      IS_DROPPABLE(i) ||
3700                                      IS_THROWABLE(i)));
3701
3702     /* ---------- SNAPPABLE ------------------------------------------------ */
3703     SET_PROPERTY(i, EP_SNAPPABLE, (IS_DIGGABLE(i) ||
3704                                    IS_COLLECTIBLE(i) ||
3705                                    IS_SWITCHABLE(i) ||
3706                                    i == EL_BD_ROCK));
3707
3708     /* ---------- WALL ----------------------------------------------------- */
3709     SET_PROPERTY(i, EP_WALL, TRUE);     /* default: element is wall */
3710
3711     for (j = 0; no_wall_properties[j] != -1; j++)
3712       if (HAS_PROPERTY(i, no_wall_properties[j]) ||
3713           i >= EL_FIRST_RUNTIME_UNREAL)
3714         SET_PROPERTY(i, EP_WALL, FALSE);
3715
3716     if (IS_HISTORIC_WALL(i))
3717       SET_PROPERTY(i, EP_WALL, TRUE);
3718
3719     /* ---------- SOLID_FOR_PUSHING ---------------------------------------- */
3720     if (engine_version < VERSION_IDENT(2,2,0,0))
3721       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, IS_HISTORIC_SOLID(i));
3722     else
3723       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, (!IS_WALKABLE(i) &&
3724                                              !IS_DIGGABLE(i) &&
3725                                              !IS_COLLECTIBLE(i)));
3726
3727     /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
3728
3729     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
3730       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
3731     else
3732       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, (IS_CUSTOM_ELEMENT(i) &&
3733                                             IS_INDESTRUCTIBLE(i)));
3734
3735     /* ---------- EXPLOSION_PROOF ------------------------------------------ */
3736     if (i == EL_FLAMES)
3737       SET_PROPERTY(i, EP_EXPLOSION_PROOF, TRUE);
3738     else if (engine_version < VERSION_IDENT(2,2,0,0))
3739       SET_PROPERTY(i, EP_EXPLOSION_PROOF, IS_INDESTRUCTIBLE(i));
3740     else
3741       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3742                                            (!IS_WALKABLE(i) ||
3743                                             IS_PROTECTED(i))));
3744
3745     if (IS_CUSTOM_ELEMENT(i))
3746     {
3747       /* these are additional properties which are initially false when set */
3748
3749       /* ---------- DONT_COLLIDE_WITH / DONT_RUN_INTO ---------------------- */
3750       if (DONT_TOUCH(i))
3751         SET_PROPERTY(i, EP_DONT_COLLIDE_WITH, TRUE);
3752       if (DONT_COLLIDE_WITH(i))
3753         SET_PROPERTY(i, EP_DONT_RUN_INTO, TRUE);
3754
3755       /* ---------- CAN_SMASH_ENEMIES / CAN_SMASH_PLAYER ------------------- */
3756       if (CAN_SMASH_EVERYTHING(i))
3757         SET_PROPERTY(i, EP_CAN_SMASH_ENEMIES, TRUE);
3758       if (CAN_SMASH_ENEMIES(i))
3759         SET_PROPERTY(i, EP_CAN_SMASH_PLAYER, TRUE);
3760     }
3761
3762     /* ---------- CAN_SMASH ------------------------------------------------ */
3763     SET_PROPERTY(i, EP_CAN_SMASH, (CAN_SMASH_PLAYER(i) ||
3764                                    CAN_SMASH_ENEMIES(i) ||
3765                                    CAN_SMASH_EVERYTHING(i)));
3766
3767     /* ---------- CAN_EXPLODE_BY_FIRE -------------------------------------- */
3768     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_FIRE, (CAN_EXPLODE(i) &&
3769                                              EXPLODES_BY_FIRE(i)));
3770
3771     /* ---------- CAN_EXPLODE_SMASHED -------------------------------------- */
3772     SET_PROPERTY(i, EP_CAN_EXPLODE_SMASHED, (CAN_EXPLODE(i) &&
3773                                              EXPLODES_SMASHED(i)));
3774
3775     /* ---------- CAN_EXPLODE_IMPACT --------------------------------------- */
3776     SET_PROPERTY(i, EP_CAN_EXPLODE_IMPACT, (CAN_EXPLODE(i) &&
3777                                             EXPLODES_IMPACT(i)));
3778
3779     /* ---------- CAN_EXPLODE_BY_DRAGONFIRE -------------------------------- */
3780     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_DRAGONFIRE, CAN_EXPLODE_BY_FIRE(i));
3781
3782     /* ---------- CAN_EXPLODE_BY_EXPLOSION --------------------------------- */
3783     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_EXPLOSION, (CAN_EXPLODE_BY_FIRE(i) ||
3784                                                   i == EL_BLACK_ORB));
3785
3786     /* ---------- COULD_MOVE_INTO_ACID ------------------------------------- */
3787     SET_PROPERTY(i, EP_COULD_MOVE_INTO_ACID, (ELEM_IS_PLAYER(i) ||
3788                                               CAN_MOVE(i) ||
3789                                               IS_CUSTOM_ELEMENT(i)));
3790
3791     /* ---------- MAYBE_DONT_COLLIDE_WITH ---------------------------------- */
3792     SET_PROPERTY(i, EP_MAYBE_DONT_COLLIDE_WITH, (i == EL_SP_SNIKSNAK ||
3793                                                  i == EL_SP_ELECTRON));
3794
3795     /* ---------- CAN_MOVE_INTO_ACID --------------------------------------- */
3796     if (COULD_MOVE_INTO_ACID(i) && !IS_CUSTOM_ELEMENT(i))
3797       SET_PROPERTY(i, EP_CAN_MOVE_INTO_ACID,
3798                    getMoveIntoAcidProperty(&level, i));
3799
3800     /* ---------- DONT_COLLIDE_WITH ---------------------------------------- */
3801     if (MAYBE_DONT_COLLIDE_WITH(i))
3802       SET_PROPERTY(i, EP_DONT_COLLIDE_WITH,
3803                    getDontCollideWithProperty(&level, i));
3804
3805     /* ---------- SP_PORT -------------------------------------------------- */
3806     SET_PROPERTY(i, EP_SP_PORT, (IS_SP_ELEMENT(i) &&
3807                                  IS_PASSABLE_INSIDE(i)));
3808
3809     /* ---------- CAN_BE_CLONED_BY_ANDROID --------------------------------- */
3810     for (j = 0; j < level.num_android_clone_elements; j++)
3811       SET_PROPERTY(i, EP_CAN_BE_CLONED_BY_ANDROID,
3812                    (i != EL_EMPTY &&
3813                     IS_EQUAL_OR_IN_GROUP(i, level.android_clone_element[j])));
3814
3815     /* ---------- CAN_CHANGE ----------------------------------------------- */
3816     SET_PROPERTY(i, EP_CAN_CHANGE, FALSE);      /* default: cannot change */
3817     for (j = 0; j < element_info[i].num_change_pages; j++)
3818       if (element_info[i].change_page[j].can_change)
3819         SET_PROPERTY(i, EP_CAN_CHANGE, TRUE);
3820
3821     /* ---------- HAS_ACTION ----------------------------------------------- */
3822     SET_PROPERTY(i, EP_HAS_ACTION, FALSE);      /* default: has no action */
3823     for (j = 0; j < element_info[i].num_change_pages; j++)
3824       if (element_info[i].change_page[j].has_action)
3825         SET_PROPERTY(i, EP_HAS_ACTION, TRUE);
3826
3827     /* ---------- CAN_CHANGE_OR_HAS_ACTION --------------------------------- */
3828     SET_PROPERTY(i, EP_CAN_CHANGE_OR_HAS_ACTION, (CAN_CHANGE(i) ||
3829                                                   HAS_ACTION(i)));
3830
3831     /* ---------- GFX_CRUMBLED --------------------------------------------- */
3832 #if 1
3833     SET_PROPERTY(i, EP_GFX_CRUMBLED,
3834                  element_info[i].crumbled[ACTION_DEFAULT] !=
3835                  element_info[i].graphic[ACTION_DEFAULT]);
3836 #else
3837     /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
3838     SET_PROPERTY(i, EP_GFX_CRUMBLED,
3839                  element_info[i].crumbled[ACTION_DEFAULT] != IMG_EMPTY);
3840 #endif
3841
3842     /* ---------- EDITOR_CASCADE ------------------------------------------- */
3843     SET_PROPERTY(i, EP_EDITOR_CASCADE, (IS_EDITOR_CASCADE_ACTIVE(i) ||
3844                                         IS_EDITOR_CASCADE_INACTIVE(i)));
3845   }
3846
3847   /* dynamically adjust element properties according to game engine version */
3848   {
3849     static int ep_em_slippery_wall[] =
3850     {
3851       EL_STEELWALL,
3852       EL_WALL,
3853       EL_EXPANDABLE_WALL,
3854       EL_EXPANDABLE_WALL_HORIZONTAL,
3855       EL_EXPANDABLE_WALL_VERTICAL,
3856       EL_EXPANDABLE_WALL_ANY,
3857       -1
3858     };
3859
3860     /* special EM style gems behaviour */
3861     for (i = 0; ep_em_slippery_wall[i] != -1; i++)
3862       SET_PROPERTY(ep_em_slippery_wall[i], EP_EM_SLIPPERY_WALL,
3863                    level.em_slippery_gems);
3864
3865     /* "EL_EXPANDABLE_WALL_GROWING" wasn't slippery for EM gems in 2.0.1 */
3866     SET_PROPERTY(EL_EXPANDABLE_WALL_GROWING, EP_EM_SLIPPERY_WALL,
3867                  (level.em_slippery_gems &&
3868                   engine_version > VERSION_IDENT(2,0,1,0)));
3869   }
3870
3871   /* set default push delay values (corrected since version 3.0.7-1) */
3872   if (engine_version < VERSION_IDENT(3,0,7,1))
3873   {
3874     game.default_push_delay_fixed = 2;
3875     game.default_push_delay_random = 8;
3876   }
3877   else
3878   {
3879     game.default_push_delay_fixed = 8;
3880     game.default_push_delay_random = 8;
3881   }
3882
3883   /* set uninitialized push delay values of custom elements in older levels */
3884   for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
3885   {
3886     int element = EL_CUSTOM_START + i;
3887
3888     if (element_info[element].push_delay_fixed == -1)
3889       element_info[element].push_delay_fixed = game.default_push_delay_fixed;
3890     if (element_info[element].push_delay_random == -1)
3891       element_info[element].push_delay_random = game.default_push_delay_random;
3892   }
3893
3894   /* set some other uninitialized values of custom elements in older levels */
3895   if (engine_version < VERSION_IDENT(3,1,0,0))
3896   {
3897     for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
3898     {
3899       int element = EL_CUSTOM_START + i;
3900
3901       element_info[element].access_direction = MV_ALL_DIRECTIONS;
3902
3903       element_info[element].explosion_delay = 17;
3904       element_info[element].ignition_delay = 8;
3905     }
3906   }
3907
3908 #if 0
3909   /* set element properties that were handled incorrectly in older levels */
3910   if (engine_version < VERSION_IDENT(3,1,0,0))
3911   {
3912     SET_PROPERTY(EL_SP_SNIKSNAK, EP_DONT_COLLIDE_WITH, FALSE);
3913     SET_PROPERTY(EL_SP_ELECTRON, EP_DONT_COLLIDE_WITH, FALSE);
3914   }
3915 #endif
3916
3917   /* this is needed because some graphics depend on element properties */
3918   if (game_status == GAME_MODE_PLAYING)
3919     InitElementGraphicInfo();
3920 }
3921
3922 static void InitGlobal()
3923 {
3924   int i;
3925
3926   for (i = 0; i < MAX_NUM_ELEMENTS + 1; i++)
3927   {
3928     /* check if element_name_info entry defined for each element in "main.h" */
3929     if (i < MAX_NUM_ELEMENTS && element_name_info[i].token_name == NULL)
3930       Error(ERR_EXIT, "undefined 'element_name_info' entry for element %d", i);
3931
3932     element_info[i].token_name = element_name_info[i].token_name;
3933     element_info[i].class_name = element_name_info[i].class_name;
3934     element_info[i].editor_description=element_name_info[i].editor_description;
3935   }
3936
3937   global.autoplay_leveldir = NULL;
3938   global.convert_leveldir = NULL;
3939
3940   global.frames_per_second = 0;
3941   global.fps_slowdown = FALSE;
3942   global.fps_slowdown_factor = 1;
3943 }
3944
3945 void Execute_Command(char *command)
3946 {
3947   int i;
3948
3949   if (strcmp(command, "print graphicsinfo.conf") == 0)
3950   {
3951     printf("# You can configure additional/alternative image files here.\n");
3952     printf("# (The entries below are default and therefore commented out.)\n");
3953     printf("\n");
3954     printf("%s\n", getFormattedSetupEntry("name", "Classic Graphics"));
3955     printf("\n");
3956     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3957     printf("\n");
3958
3959     for (i = 0; image_config[i].token != NULL; i++)
3960       printf("# %s\n", getFormattedSetupEntry(image_config[i].token,
3961                                               image_config[i].value));
3962
3963     exit(0);
3964   }
3965   else if (strcmp(command, "print soundsinfo.conf") == 0)
3966   {
3967     printf("# You can configure additional/alternative sound files here.\n");
3968     printf("# (The entries below are default and therefore commented out.)\n");
3969     printf("\n");
3970     printf("%s\n", getFormattedSetupEntry("name", "Classic Sounds"));
3971     printf("\n");
3972     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3973     printf("\n");
3974
3975     for (i = 0; sound_config[i].token != NULL; i++)
3976       printf("# %s\n", getFormattedSetupEntry(sound_config[i].token,
3977                                               sound_config[i].value));
3978
3979     exit(0);
3980   }
3981   else if (strcmp(command, "print musicinfo.conf") == 0)
3982   {
3983     printf("# You can configure additional/alternative music files here.\n");
3984     printf("# (The entries below are default and therefore commented out.)\n");
3985     printf("\n");
3986     printf("%s\n", getFormattedSetupEntry("name", "Classic Music"));
3987     printf("\n");
3988     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3989     printf("\n");
3990
3991     for (i = 0; music_config[i].token != NULL; i++)
3992       printf("# %s\n", getFormattedSetupEntry(music_config[i].token,
3993                                               music_config[i].value));
3994
3995     exit(0);
3996   }
3997   else if (strcmp(command, "print editorsetup.conf") == 0)
3998   {
3999     printf("# You can configure your personal editor element list here.\n");
4000     printf("# (The entries below are default and therefore commented out.)\n");
4001     printf("\n");
4002
4003     /* this is needed to be able to check element list for cascade elements */
4004     InitElementPropertiesStatic();
4005     InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
4006
4007     PrintEditorElementList();
4008
4009     exit(0);
4010   }
4011   else if (strcmp(command, "print helpanim.conf") == 0)
4012   {
4013     printf("# You can configure different element help animations here.\n");
4014     printf("# (The entries below are default and therefore commented out.)\n");
4015     printf("\n");
4016
4017     for (i = 0; helpanim_config[i].token != NULL; i++)
4018     {
4019       printf("# %s\n", getFormattedSetupEntry(helpanim_config[i].token,
4020                                               helpanim_config[i].value));
4021
4022       if (strcmp(helpanim_config[i].token, "end") == 0)
4023         printf("#\n");
4024     }
4025
4026     exit(0);
4027   }
4028   else if (strcmp(command, "print helptext.conf") == 0)
4029   {
4030     printf("# You can configure different element help text here.\n");
4031     printf("# (The entries below are default and therefore commented out.)\n");
4032     printf("\n");
4033
4034     for (i = 0; helptext_config[i].token != NULL; i++)
4035       printf("# %s\n", getFormattedSetupEntry(helptext_config[i].token,
4036                                               helptext_config[i].value));
4037
4038     exit(0);
4039   }
4040   else if (strncmp(command, "dump level ", 11) == 0)
4041   {
4042     char *filename = &command[11];
4043
4044     if (!fileExists(filename))
4045       Error(ERR_EXIT, "cannot open file '%s'", filename);
4046
4047     LoadLevelFromFilename(&level, filename);
4048     DumpLevel(&level);
4049
4050     exit(0);
4051   }
4052   else if (strncmp(command, "dump tape ", 10) == 0)
4053   {
4054     char *filename = &command[10];
4055
4056     if (!fileExists(filename))
4057       Error(ERR_EXIT, "cannot open file '%s'", filename);
4058
4059     LoadTapeFromFilename(filename);
4060     DumpTape(&tape);
4061
4062     exit(0);
4063   }
4064   else if (strncmp(command, "autoplay ", 9) == 0)
4065   {
4066     char *str_ptr = getStringCopy(&command[9]); /* read command parameters */
4067
4068     while (*str_ptr != '\0')                    /* continue parsing string */
4069     {
4070       /* cut leading whitespace from string, replace it by string terminator */
4071       while (*str_ptr == ' ' || *str_ptr == '\t')
4072         *str_ptr++ = '\0';
4073
4074       if (*str_ptr == '\0')                     /* end of string reached */
4075         break;
4076
4077       if (global.autoplay_leveldir == NULL)     /* read level set string */
4078       {
4079         global.autoplay_leveldir = str_ptr;
4080         global.autoplay_all = TRUE;             /* default: play all tapes */
4081
4082         for (i = 0; i < MAX_TAPES_PER_SET; i++)
4083           global.autoplay_level[i] = FALSE;
4084       }
4085       else                                      /* read level number string */
4086       {
4087         int level_nr = atoi(str_ptr);           /* get level_nr value */
4088
4089         if (level_nr >= 0 && level_nr < MAX_TAPES_PER_SET)
4090           global.autoplay_level[level_nr] = TRUE;
4091
4092         global.autoplay_all = FALSE;
4093       }
4094
4095       /* advance string pointer to the next whitespace (or end of string) */
4096       while (*str_ptr != ' ' && *str_ptr != '\t' && *str_ptr != '\0')
4097         str_ptr++;
4098     }
4099   }
4100   else if (strncmp(command, "convert ", 8) == 0)
4101   {
4102     char *str_copy = getStringCopy(&command[8]);
4103     char *str_ptr = strchr(str_copy, ' ');
4104
4105     global.convert_leveldir = str_copy;
4106     global.convert_level_nr = -1;
4107
4108     if (str_ptr != NULL)                        /* level number follows */
4109     {
4110       *str_ptr++ = '\0';                        /* terminate leveldir string */
4111       global.convert_level_nr = atoi(str_ptr);  /* get level_nr value */
4112     }
4113   }
4114   else
4115   {
4116     Error(ERR_EXIT_HELP, "unrecognized command '%s'", command);
4117   }
4118 }
4119
4120 static void InitSetup()
4121 {
4122   LoadSetup();                                  /* global setup info */
4123
4124   /* set some options from setup file */
4125
4126   if (setup.options.verbose)
4127     options.verbose = TRUE;
4128 }
4129
4130 static void InitGameInfo()
4131 {
4132   game.restart_level = FALSE;
4133 }
4134
4135 static void InitPlayerInfo()
4136 {
4137   int i;
4138
4139   /* choose default local player */
4140   local_player = &stored_player[0];
4141
4142   for (i = 0; i < MAX_PLAYERS; i++)
4143     stored_player[i].connected = FALSE;
4144
4145   local_player->connected = TRUE;
4146 }
4147
4148 static void InitArtworkInfo()
4149 {
4150   LoadArtworkInfo();
4151 }
4152
4153 static char *get_string_in_brackets(char *string)
4154 {
4155   char *string_in_brackets = checked_malloc(strlen(string) + 3);
4156
4157   sprintf(string_in_brackets, "[%s]", string);
4158
4159   return string_in_brackets;
4160 }
4161
4162 static char *get_level_id_suffix(int id_nr)
4163 {
4164   char *id_suffix = checked_malloc(1 + 3 + 1);
4165
4166   if (id_nr < 0 || id_nr > 999)
4167     id_nr = 0;
4168
4169   sprintf(id_suffix, ".%03d", id_nr);
4170
4171   return id_suffix;
4172 }
4173
4174 #if 0
4175 static char *get_element_class_token(int element)
4176 {
4177   char *element_class_name = element_info[element].class_name;
4178   char *element_class_token = checked_malloc(strlen(element_class_name) + 3);
4179
4180   sprintf(element_class_token, "[%s]", element_class_name);
4181
4182   return element_class_token;
4183 }
4184
4185 static char *get_action_class_token(int action)
4186 {
4187   char *action_class_name = &element_action_info[action].suffix[1];
4188   char *action_class_token = checked_malloc(strlen(action_class_name) + 3);
4189
4190   sprintf(action_class_token, "[%s]", action_class_name);
4191
4192   return action_class_token;
4193 }
4194 #endif
4195
4196 static void InitArtworkConfig()
4197 {
4198   static char *image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS + 1];
4199   static char *sound_id_prefix[2 * MAX_NUM_ELEMENTS + 1];
4200   static char *music_id_prefix[NUM_MUSIC_PREFIXES + 1];
4201   static char *action_id_suffix[NUM_ACTIONS + 1];
4202   static char *direction_id_suffix[NUM_DIRECTIONS_FULL + 1];
4203   static char *special_id_suffix[NUM_SPECIAL_GFX_ARGS + 1];
4204   static char *level_id_suffix[MAX_LEVELS + 1];
4205   static char *dummy[1] = { NULL };
4206   static char *ignore_generic_tokens[] =
4207   {
4208     "name",
4209     "sort_priority",
4210     NULL
4211   };
4212   static char **ignore_image_tokens;
4213   static char **ignore_sound_tokens;
4214   static char **ignore_music_tokens;
4215   int num_ignore_generic_tokens;
4216   int num_ignore_image_tokens;
4217   int num_ignore_sound_tokens;
4218   int num_ignore_music_tokens;
4219   int i;
4220
4221   /* dynamically determine list of generic tokens to be ignored */
4222   num_ignore_generic_tokens = 0;
4223   for (i = 0; ignore_generic_tokens[i] != NULL; i++)
4224     num_ignore_generic_tokens++;
4225
4226   /* dynamically determine list of image tokens to be ignored */
4227   num_ignore_image_tokens = num_ignore_generic_tokens;
4228   for (i = 0; image_config_vars[i].token != NULL; i++)
4229     num_ignore_image_tokens++;
4230   ignore_image_tokens =
4231     checked_malloc((num_ignore_image_tokens + 1) * sizeof(char *));
4232   for (i = 0; i < num_ignore_generic_tokens; i++)
4233     ignore_image_tokens[i] = ignore_generic_tokens[i];
4234   for (i = 0; i < num_ignore_image_tokens - num_ignore_generic_tokens; i++)
4235     ignore_image_tokens[num_ignore_generic_tokens + i] =
4236       image_config_vars[i].token;
4237   ignore_image_tokens[num_ignore_image_tokens] = NULL;
4238
4239   /* dynamically determine list of sound tokens to be ignored */
4240   num_ignore_sound_tokens = num_ignore_generic_tokens;
4241   ignore_sound_tokens =
4242     checked_malloc((num_ignore_sound_tokens + 1) * sizeof(char *));
4243   for (i = 0; i < num_ignore_generic_tokens; i++)
4244     ignore_sound_tokens[i] = ignore_generic_tokens[i];
4245   ignore_sound_tokens[num_ignore_sound_tokens] = NULL;
4246
4247   /* dynamically determine list of music tokens to be ignored */
4248   num_ignore_music_tokens = num_ignore_generic_tokens;
4249   ignore_music_tokens =
4250     checked_malloc((num_ignore_music_tokens + 1) * sizeof(char *));
4251   for (i = 0; i < num_ignore_generic_tokens; i++)
4252     ignore_music_tokens[i] = ignore_generic_tokens[i];
4253   ignore_music_tokens[num_ignore_music_tokens] = NULL;
4254
4255   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
4256     image_id_prefix[i] = element_info[i].token_name;
4257   for (i = 0; i < NUM_FONTS; i++)
4258     image_id_prefix[MAX_NUM_ELEMENTS + i] = font_info[i].token_name;
4259   image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS] = NULL;
4260
4261   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
4262     sound_id_prefix[i] = element_info[i].token_name;
4263   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
4264     sound_id_prefix[MAX_NUM_ELEMENTS + i] =
4265       get_string_in_brackets(element_info[i].class_name);
4266   sound_id_prefix[2 * MAX_NUM_ELEMENTS] = NULL;
4267
4268   for (i = 0; i < NUM_MUSIC_PREFIXES; i++)
4269     music_id_prefix[i] = music_prefix_info[i].prefix;
4270   music_id_prefix[NUM_MUSIC_PREFIXES] = NULL;
4271
4272   for (i = 0; i < NUM_ACTIONS; i++)
4273     action_id_suffix[i] = element_action_info[i].suffix;
4274   action_id_suffix[NUM_ACTIONS] = NULL;
4275
4276   for (i = 0; i < NUM_DIRECTIONS_FULL; i++)
4277     direction_id_suffix[i] = element_direction_info[i].suffix;
4278   direction_id_suffix[NUM_DIRECTIONS_FULL] = NULL;
4279
4280   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
4281     special_id_suffix[i] = special_suffix_info[i].suffix;
4282   special_id_suffix[NUM_SPECIAL_GFX_ARGS] = NULL;
4283
4284   for (i = 0; i < MAX_LEVELS; i++)
4285     level_id_suffix[i] = get_level_id_suffix(i);
4286   level_id_suffix[MAX_LEVELS] = NULL;
4287
4288   InitImageList(image_config, NUM_IMAGE_FILES, image_config_suffix,
4289                 image_id_prefix, action_id_suffix, direction_id_suffix,
4290                 special_id_suffix, ignore_image_tokens);
4291   InitSoundList(sound_config, NUM_SOUND_FILES, sound_config_suffix,
4292                 sound_id_prefix, action_id_suffix, dummy,
4293                 special_id_suffix, ignore_sound_tokens);
4294   InitMusicList(music_config, NUM_MUSIC_FILES, music_config_suffix,
4295                 music_id_prefix, special_id_suffix, level_id_suffix,
4296                 dummy, ignore_music_tokens);
4297 }
4298
4299 static void InitMixer()
4300 {
4301   OpenAudio();
4302   StartMixer();
4303 }
4304
4305 void InitGfx()
4306 {
4307   char *filename_font_initial = NULL;
4308   Bitmap *bitmap_font_initial = NULL;
4309   int i, j;
4310
4311   /* determine settings for initial font (for displaying startup messages) */
4312   for (i = 0; image_config[i].token != NULL; i++)
4313   {
4314     for (j = 0; j < NUM_INITIAL_FONTS; j++)
4315     {
4316       char font_token[128];
4317       int len_font_token;
4318
4319       sprintf(font_token, "%s_%d", CONFIG_TOKEN_FONT_INITIAL, j + 1);
4320       len_font_token = strlen(font_token);
4321
4322       if (strcmp(image_config[i].token, font_token) == 0)
4323         filename_font_initial = image_config[i].value;
4324       else if (strlen(image_config[i].token) > len_font_token &&
4325                strncmp(image_config[i].token, font_token, len_font_token) == 0)
4326       {
4327         if (strcmp(&image_config[i].token[len_font_token], ".x") == 0)
4328           font_initial[j].src_x = atoi(image_config[i].value);
4329         else if (strcmp(&image_config[i].token[len_font_token], ".y") == 0)
4330           font_initial[j].src_y = atoi(image_config[i].value);
4331         else if (strcmp(&image_config[i].token[len_font_token], ".width") == 0)
4332           font_initial[j].width = atoi(image_config[i].value);
4333         else if (strcmp(&image_config[i].token[len_font_token],".height") == 0)
4334           font_initial[j].height = atoi(image_config[i].value);
4335       }
4336     }
4337   }
4338
4339   for (j = 0; j < NUM_INITIAL_FONTS; j++)
4340   {
4341     font_initial[j].num_chars = DEFAULT_NUM_CHARS_PER_FONT;
4342     font_initial[j].num_chars_per_line = DEFAULT_NUM_CHARS_PER_LINE;
4343   }
4344
4345   if (filename_font_initial == NULL)    /* should not happen */
4346     Error(ERR_EXIT, "cannot get filename for '%s'", CONFIG_TOKEN_FONT_INITIAL);
4347
4348   /* create additional image buffers for double-buffering */
4349   bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
4350   bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
4351
4352   /* initialize screen properties */
4353   InitGfxFieldInfo(SX, SY, SXSIZE, SYSIZE,
4354                    REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE,
4355                    bitmap_db_field);
4356   InitGfxDoor1Info(DX, DY, DXSIZE, DYSIZE);
4357   InitGfxDoor2Info(VX, VY, VXSIZE, VYSIZE);
4358   InitGfxScrollbufferInfo(FXSIZE, FYSIZE);
4359
4360   bitmap_font_initial = LoadCustomImage(filename_font_initial);
4361
4362   for (j = 0; j < NUM_INITIAL_FONTS; j++)
4363     font_initial[j].bitmap = bitmap_font_initial;
4364
4365   InitFontGraphicInfo();
4366
4367   DrawInitText(getProgramInitString(), 20, FC_YELLOW);
4368   DrawInitText(PROGRAM_COPYRIGHT_STRING, 50, FC_RED);
4369
4370   DrawInitText("Loading graphics:", 120, FC_GREEN);
4371 }
4372
4373 void InitGfxBackground()
4374 {
4375   int x, y;
4376
4377   drawto = backbuffer;
4378   fieldbuffer = bitmap_db_field;
4379   SetDrawtoField(DRAW_BACKBUFFER);
4380
4381   BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, backbuffer,
4382              0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
4383   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
4384   ClearRectangle(bitmap_db_door, 0, 0, 3 * DXSIZE, DYSIZE + VYSIZE);
4385
4386   for (x = 0; x < MAX_BUF_XSIZE; x++)
4387     for (y = 0; y < MAX_BUF_YSIZE; y++)
4388       redraw[x][y] = 0;
4389   redraw_tiles = 0;
4390   redraw_mask = REDRAW_ALL;
4391 }
4392
4393 static void InitLevelInfo()
4394 {
4395   LoadLevelInfo();                              /* global level info */
4396   LoadLevelSetup_LastSeries();                  /* last played series info */
4397   LoadLevelSetup_SeriesInfo();                  /* last played level info */
4398 }
4399
4400 void InitLevelArtworkInfo()
4401 {
4402   LoadLevelArtworkInfo();
4403 }
4404
4405 static void InitImages()
4406 {
4407   setLevelArtworkDir(artwork.gfx_first);
4408
4409 #if 0
4410   printf("::: InitImages for '%s' ['%s', '%s'] ['%s', '%s']\n",
4411          leveldir_current->identifier,
4412          artwork.gfx_current_identifier,
4413          artwork.gfx_current->identifier,
4414          leveldir_current->graphics_set,
4415          leveldir_current->graphics_path);
4416 #endif
4417
4418   ReloadCustomImages();
4419
4420   LoadCustomElementDescriptions();
4421   LoadSpecialMenuDesignSettings();
4422
4423   ReinitializeGraphics();
4424 }
4425
4426 static void InitSound(char *identifier)
4427 {
4428   if (identifier == NULL)
4429     identifier = artwork.snd_current->identifier;
4430
4431   /* set artwork path to send it to the sound server process */
4432   setLevelArtworkDir(artwork.snd_first);
4433
4434   InitReloadCustomSounds(identifier);
4435   ReinitializeSounds();
4436 }
4437
4438 static void InitMusic(char *identifier)
4439 {
4440   if (identifier == NULL)
4441     identifier = artwork.mus_current->identifier;
4442
4443   /* set artwork path to send it to the sound server process */
4444   setLevelArtworkDir(artwork.mus_first);
4445
4446   InitReloadCustomMusic(identifier);
4447   ReinitializeMusic();
4448 }
4449
4450 void InitNetworkServer()
4451 {
4452 #if defined(NETWORK_AVALIABLE)
4453   int nr_wanted;
4454 #endif
4455
4456   if (!options.network)
4457     return;
4458
4459 #if defined(NETWORK_AVALIABLE)
4460   nr_wanted = Request("Choose player", REQ_PLAYER | REQ_STAY_CLOSED);
4461
4462   if (!ConnectToServer(options.server_host, options.server_port))
4463     Error(ERR_EXIT, "cannot connect to network game server");
4464
4465   SendToServer_PlayerName(setup.player_name);
4466   SendToServer_ProtocolVersion();
4467
4468   if (nr_wanted)
4469     SendToServer_NrWanted(nr_wanted);
4470 #endif
4471 }
4472
4473 static char *getNewArtworkIdentifier(int type)
4474 {
4475   static char *leveldir_current_identifier[3] = { NULL, NULL, NULL };
4476   static boolean last_override_level_artwork[3] = { FALSE, FALSE, FALSE };
4477   static boolean last_has_level_artwork_set[3] = { FALSE, FALSE, FALSE };
4478   static boolean initialized[3] = { FALSE, FALSE, FALSE };
4479   TreeInfo *artwork_first_node = ARTWORK_FIRST_NODE(artwork, type);
4480   boolean setup_override_artwork = SETUP_OVERRIDE_ARTWORK(setup, type);
4481   char *setup_artwork_set = SETUP_ARTWORK_SET(setup, type);
4482   char *leveldir_identifier = leveldir_current->identifier;
4483 #if 1
4484   /* !!! setLevelArtworkDir() should be moved to an earlier stage !!! */
4485   char *leveldir_artwork_set = setLevelArtworkDir(artwork_first_node);
4486 #else
4487   char *leveldir_artwork_set = LEVELDIR_ARTWORK_SET(leveldir_current, type);
4488 #endif
4489   boolean has_level_artwork_set = (leveldir_artwork_set != NULL);
4490   char *artwork_current_identifier;
4491   char *artwork_new_identifier = NULL;  /* default: nothing has changed */
4492
4493   /* leveldir_current may be invalid (level group, parent link) */
4494   if (!validLevelSeries(leveldir_current))
4495     return NULL;
4496
4497   /* 1st step: determine artwork set to be activated in descending order:
4498      --------------------------------------------------------------------
4499      1. setup artwork (when configured to override everything else)
4500      2. artwork set configured in "levelinfo.conf" of current level set
4501         (artwork in level directory will have priority when loading later)
4502      3. artwork in level directory (stored in artwork sub-directory)
4503      4. setup artwork (currently configured in setup menu) */
4504
4505   if (setup_override_artwork)
4506     artwork_current_identifier = setup_artwork_set;
4507   else if (leveldir_artwork_set != NULL)
4508     artwork_current_identifier = leveldir_artwork_set;
4509   else if (getTreeInfoFromIdentifier(artwork_first_node, leveldir_identifier))
4510     artwork_current_identifier = leveldir_identifier;
4511   else
4512     artwork_current_identifier = setup_artwork_set;
4513
4514
4515   /* 2nd step: check if it is really needed to reload artwork set
4516      ------------------------------------------------------------ */
4517
4518 #if 0
4519   if (type == ARTWORK_TYPE_GRAPHICS)
4520     printf("::: 0: '%s' ['%s', '%s'] ['%s' ('%s')]\n",
4521            artwork_new_identifier,
4522            ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4523            artwork_current_identifier,
4524            leveldir_current->graphics_set,
4525            leveldir_current->identifier);
4526 #endif
4527
4528   /* ---------- reload if level set and also artwork set has changed ------- */
4529   if (leveldir_current_identifier[type] != leveldir_identifier &&
4530       (last_has_level_artwork_set[type] || has_level_artwork_set))
4531     artwork_new_identifier = artwork_current_identifier;
4532
4533   leveldir_current_identifier[type] = leveldir_identifier;
4534   last_has_level_artwork_set[type] = has_level_artwork_set;
4535
4536 #if 0
4537   if (type == ARTWORK_TYPE_GRAPHICS)
4538     printf("::: 1: '%s'\n", artwork_new_identifier);
4539 #endif
4540
4541   /* ---------- reload if "override artwork" setting has changed ----------- */
4542   if (last_override_level_artwork[type] != setup_override_artwork)
4543     artwork_new_identifier = artwork_current_identifier;
4544
4545   last_override_level_artwork[type] = setup_override_artwork;
4546
4547 #if 0
4548   if (type == ARTWORK_TYPE_GRAPHICS)
4549     printf("::: 2: '%s'\n", artwork_new_identifier);
4550 #endif
4551
4552   /* ---------- reload if current artwork identifier has changed ----------- */
4553   if (strcmp(ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4554              artwork_current_identifier) != 0)
4555     artwork_new_identifier = artwork_current_identifier;
4556
4557   *(ARTWORK_CURRENT_IDENTIFIER_PTR(artwork, type))= artwork_current_identifier;
4558
4559 #if 0
4560   if (type == ARTWORK_TYPE_GRAPHICS)
4561     printf("::: 3: '%s'\n", artwork_new_identifier);
4562 #endif
4563
4564   /* ---------- do not reload directly after starting ---------------------- */
4565   if (!initialized[type])
4566     artwork_new_identifier = NULL;
4567
4568   initialized[type] = TRUE;
4569
4570 #if 0
4571   if (type == ARTWORK_TYPE_GRAPHICS)
4572     printf("::: 4: '%s'\n", artwork_new_identifier);
4573 #endif
4574
4575 #if 0
4576   if (type == ARTWORK_TYPE_GRAPHICS)
4577     printf("CHECKING OLD/NEW GFX:\n- OLD: %s\n- NEW: %s ['%s', '%s'] ['%s']\n",
4578            artwork.gfx_current_identifier, artwork_current_identifier,
4579            artwork.gfx_current->identifier, leveldir_current->graphics_set,
4580            artwork_new_identifier);
4581 #endif
4582
4583   return artwork_new_identifier;
4584 }
4585
4586 void ReloadCustomArtwork(int force_reload)
4587 {
4588   char *gfx_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_GRAPHICS);
4589   char *snd_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_SOUNDS);
4590   char *mus_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_MUSIC);
4591   boolean force_reload_gfx = (force_reload & (1 << ARTWORK_TYPE_GRAPHICS));
4592   boolean force_reload_snd = (force_reload & (1 << ARTWORK_TYPE_SOUNDS));
4593   boolean force_reload_mus = (force_reload & (1 << ARTWORK_TYPE_MUSIC));
4594   boolean redraw_screen = FALSE;
4595
4596   if (gfx_new_identifier != NULL || force_reload_gfx)
4597   {
4598 #if 0
4599     printf("RELOADING GRAPHICS '%s' -> '%s' ['%s', '%s']\n",
4600            artwork.gfx_current_identifier,
4601            gfx_new_identifier,
4602            artwork.gfx_current->identifier,
4603            leveldir_current->graphics_set);
4604 #endif
4605
4606     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4607
4608     InitImages();
4609
4610     redraw_screen = TRUE;
4611   }
4612
4613   if (snd_new_identifier != NULL || force_reload_snd)
4614   {
4615     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4616
4617     InitSound(snd_new_identifier);
4618
4619     redraw_screen = TRUE;
4620   }
4621
4622   if (mus_new_identifier != NULL || force_reload_mus)
4623   {
4624     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4625
4626     InitMusic(mus_new_identifier);
4627
4628     redraw_screen = TRUE;
4629   }
4630
4631   if (redraw_screen)
4632   {
4633     InitGfxBackground();
4634
4635     /* force redraw of (open or closed) door graphics */
4636     SetDoorState(DOOR_OPEN_ALL);
4637     CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
4638   }
4639 }
4640
4641 void KeyboardAutoRepeatOffUnlessAutoplay()
4642 {
4643   if (global.autoplay_leveldir == NULL)
4644     KeyboardAutoRepeatOff();
4645 }
4646
4647
4648 /* ========================================================================= */
4649 /* OpenAll()                                                                 */
4650 /* ========================================================================= */
4651
4652 void OpenAll()
4653 {
4654   InitGlobal();                 /* initialize some global variables */
4655
4656   if (options.execute_command)
4657     Execute_Command(options.execute_command);
4658
4659   if (options.serveronly)
4660   {
4661 #if defined(PLATFORM_UNIX)
4662     NetworkServer(options.server_port, options.serveronly);
4663 #else
4664     Error(ERR_WARN, "networking only supported in Unix version");
4665 #endif
4666
4667     exit(0);                    /* never reached, server loops forever */
4668   }
4669
4670   InitSetup();
4671
4672   InitGameInfo();
4673   InitPlayerInfo();
4674   InitArtworkInfo();            /* needed before loading gfx, sound & music */
4675   InitArtworkConfig();          /* needed before forking sound child process */
4676   InitMixer();
4677
4678   InitCounter();
4679
4680   InitRND(NEW_RANDOMIZE);
4681   InitSimpleRND(NEW_RANDOMIZE);
4682
4683   InitJoysticks();
4684
4685   InitVideoDisplay();
4686   InitVideoBuffer(&backbuffer, &window, WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH,
4687                   setup.fullscreen);
4688
4689   InitEventFilter(FilterMouseMotionEvents);
4690
4691   InitElementPropertiesStatic();
4692   InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
4693
4694   InitGfx();
4695
4696   InitLevelInfo();
4697   InitLevelArtworkInfo();
4698
4699   InitImages();                 /* needs to know current level directory */
4700   InitSound(NULL);              /* needs to know current level directory */
4701   InitMusic(NULL);              /* needs to know current level directory */
4702
4703   InitGfxBackground();
4704
4705   if (global.autoplay_leveldir)
4706   {
4707     AutoPlayTape();
4708     return;
4709   }
4710   else if (global.convert_leveldir)
4711   {
4712     ConvertLevels();
4713     return;
4714   }
4715
4716   game_status = GAME_MODE_MAIN;
4717
4718 #if 1
4719   em_open_all();
4720 #endif
4721
4722   DrawMainMenu();
4723
4724   InitNetworkServer();
4725 }
4726
4727 void CloseAllAndExit(int exit_value)
4728 {
4729   StopSounds();
4730   FreeAllSounds();
4731   FreeAllMusic();
4732   CloseAudio();         /* called after freeing sounds (needed for SDL) */
4733
4734 #if 1
4735   em_close_all();
4736 #endif
4737
4738   FreeAllImages();
4739
4740 #if defined(TARGET_SDL)
4741   if (network_server)   /* terminate network server */
4742     SDL_KillThread(server_thread);
4743 #endif
4744
4745   CloseVideoDisplay();
4746   ClosePlatformDependentStuff();
4747
4748   exit(exit_value);
4749 }