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; 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; 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; 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; 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; 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; 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; 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];
 570     int default_direction_crumbled[NUM_DIRECTIONS];
 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; 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; 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; 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 element 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
1727     { -1,                       -1      },
1728   };
1729
1730   static struct PropertyBitInfo pb_dont_collide_with[] =
1731   {
1732     { EL_SP_SNIKSNAK,           0       },
1733     { EL_SP_ELECTRON,           1       },
1734
1735     { -1,                       -1      },
1736   };
1737
1738   static struct
1739   {
1740     int bit_nr;
1741     struct PropertyBitInfo *pb_info;
1742   } pb_definition[] =
1743   {
1744     { EP_CAN_MOVE_INTO_ACID,    pb_can_move_into_acid   },
1745     { EP_DONT_COLLIDE_WITH,     pb_dont_collide_with    },
1746
1747     { -1,                       NULL                    },
1748   };
1749
1750   struct PropertyBitInfo *pb_info = NULL;
1751   int i;
1752
1753   for (i = 0; pb_definition[i].bit_nr != -1; i++)
1754     if (pb_definition[i].bit_nr == property_bit_nr)
1755       pb_info = pb_definition[i].pb_info;
1756
1757   if (pb_info == NULL)
1758     return -1;
1759
1760   for (i = 0; pb_info[i].element != -1; i++)
1761     if (pb_info[i].element == element)
1762       return pb_info[i].bit_nr;
1763
1764   return -1;
1765 }
1766
1767 void setBitfieldProperty(int *bitfield, int property_bit_nr, int element,
1768                          boolean property_value)
1769 {
1770   int bit_nr = get_special_property_bit(element, property_bit_nr);
1771
1772   if (bit_nr > -1)
1773   {
1774     if (property_value)
1775       *bitfield |=  (1 << bit_nr);
1776     else
1777       *bitfield &= ~(1 << bit_nr);
1778   }
1779 }
1780
1781 boolean getBitfieldProperty(int *bitfield, int property_bit_nr, int element)
1782 {
1783   int bit_nr = get_special_property_bit(element, property_bit_nr);
1784
1785   if (bit_nr > -1)
1786     return ((*bitfield & (1 << bit_nr)) != 0);
1787
1788   return FALSE;
1789 }
1790
1791 void InitElementPropertiesStatic()
1792 {
1793   static int ep_diggable[] =
1794   {
1795     EL_SAND,
1796     EL_SP_BASE,
1797     EL_SP_BUGGY_BASE,
1798     EL_SP_BUGGY_BASE_ACTIVATING,
1799     EL_TRAP,
1800     EL_INVISIBLE_SAND,
1801     EL_INVISIBLE_SAND_ACTIVE,
1802     EL_EMC_GRASS,
1803
1804     /* !!! currently not diggable, but handled by 'ep_dont_run_into' !!! */
1805     /* (if amoeba can grow into anything diggable, maybe keep these out) */
1806 #if 0
1807     EL_LANDMINE,
1808     EL_TRAP_ACTIVE,
1809     EL_SP_BUGGY_BASE_ACTIVE,
1810     EL_EMC_PLANT,
1811 #endif
1812
1813     -1
1814   };
1815
1816   static int ep_collectible_only[] =
1817   {
1818     EL_BD_DIAMOND,
1819     EL_EMERALD,
1820     EL_DIAMOND,
1821     EL_EMERALD_YELLOW,
1822     EL_EMERALD_RED,
1823     EL_EMERALD_PURPLE,
1824     EL_KEY_1,
1825     EL_KEY_2,
1826     EL_KEY_3,
1827     EL_KEY_4,
1828     EL_EM_KEY_1,
1829     EL_EM_KEY_2,
1830     EL_EM_KEY_3,
1831     EL_EM_KEY_4,
1832     EL_EMC_KEY_5,
1833     EL_EMC_KEY_6,
1834     EL_EMC_KEY_7,
1835     EL_EMC_KEY_8,
1836     EL_DYNAMITE,
1837     EL_DYNABOMB_INCREASE_NUMBER,
1838     EL_DYNABOMB_INCREASE_SIZE,
1839     EL_DYNABOMB_INCREASE_POWER,
1840     EL_SP_INFOTRON,
1841     EL_SP_DISK_RED,
1842     EL_PEARL,
1843     EL_CRYSTAL,
1844     EL_KEY_WHITE,
1845     EL_SHIELD_NORMAL,
1846     EL_SHIELD_DEADLY,
1847     EL_EXTRA_TIME,
1848     EL_ENVELOPE_1,
1849     EL_ENVELOPE_2,
1850     EL_ENVELOPE_3,
1851     EL_ENVELOPE_4,
1852     EL_SPEED_PILL,
1853     EL_EMC_LENSES,
1854     EL_EMC_MAGNIFIER,
1855
1856     -1
1857   };
1858
1859   static int ep_dont_run_into[] =
1860   {
1861     /* same elements as in 'ep_dont_touch' */
1862     EL_BUG,
1863     EL_SPACESHIP,
1864     EL_BD_BUTTERFLY,
1865     EL_BD_FIREFLY,
1866
1867     /* same elements as in 'ep_dont_collide_with' */
1868     EL_YAMYAM,
1869     EL_DARK_YAMYAM,
1870     EL_ROBOT,
1871     EL_PACMAN,
1872     EL_SP_SNIKSNAK,
1873     EL_SP_ELECTRON,
1874
1875     /* new elements */
1876     EL_AMOEBA_DROP,
1877     EL_ACID,
1878
1879     /* !!! maybe this should better be handled by 'ep_diggable' !!! */
1880 #if 1
1881     EL_LANDMINE,
1882     EL_TRAP_ACTIVE,
1883     EL_SP_BUGGY_BASE_ACTIVE,
1884     EL_EMC_PLANT,
1885 #endif
1886
1887     -1
1888   };
1889
1890   static int ep_dont_collide_with[] =
1891   {
1892     /* same elements as in 'ep_dont_touch' */
1893     EL_BUG,
1894     EL_SPACESHIP,
1895     EL_BD_BUTTERFLY,
1896     EL_BD_FIREFLY,
1897
1898     /* new elements */
1899     EL_YAMYAM,
1900     EL_DARK_YAMYAM,
1901     EL_ROBOT,
1902     EL_PACMAN,
1903     EL_SP_SNIKSNAK,
1904     EL_SP_ELECTRON,
1905
1906     -1
1907   };
1908
1909   static int ep_dont_touch[] =
1910   {
1911     EL_BUG,
1912     EL_SPACESHIP,
1913     EL_BD_BUTTERFLY,
1914     EL_BD_FIREFLY,
1915
1916     -1
1917   };
1918
1919   static int ep_indestructible[] =
1920   {
1921     EL_STEELWALL,
1922     EL_ACID,
1923     EL_ACID_POOL_TOPLEFT,
1924     EL_ACID_POOL_TOPRIGHT,
1925     EL_ACID_POOL_BOTTOMLEFT,
1926     EL_ACID_POOL_BOTTOM,
1927     EL_ACID_POOL_BOTTOMRIGHT,
1928     EL_SP_HARDWARE_GRAY,
1929     EL_SP_HARDWARE_GREEN,
1930     EL_SP_HARDWARE_BLUE,
1931     EL_SP_HARDWARE_RED,
1932     EL_SP_HARDWARE_YELLOW,
1933     EL_SP_HARDWARE_BASE_1,
1934     EL_SP_HARDWARE_BASE_2,
1935     EL_SP_HARDWARE_BASE_3,
1936     EL_SP_HARDWARE_BASE_4,
1937     EL_SP_HARDWARE_BASE_5,
1938     EL_SP_HARDWARE_BASE_6,
1939     EL_INVISIBLE_STEELWALL,
1940     EL_INVISIBLE_STEELWALL_ACTIVE,
1941     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1942     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1943     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1944     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1945     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1946     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1947     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1948     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1949     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1950     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1951     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1952     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1953     EL_LIGHT_SWITCH,
1954     EL_LIGHT_SWITCH_ACTIVE,
1955     EL_SIGN_EXCLAMATION,
1956     EL_SIGN_RADIOACTIVITY,
1957     EL_SIGN_STOP,
1958     EL_SIGN_WHEELCHAIR,
1959     EL_SIGN_PARKING,
1960     EL_SIGN_ONEWAY,
1961     EL_SIGN_HEART,
1962     EL_SIGN_TRIANGLE,
1963     EL_SIGN_ROUND,
1964     EL_SIGN_EXIT,
1965     EL_SIGN_YINYANG,
1966     EL_SIGN_OTHER,
1967     EL_STEELWALL_SLIPPERY,
1968     EL_EMC_STEELWALL_1,
1969     EL_EMC_STEELWALL_2,
1970     EL_EMC_STEELWALL_3,
1971     EL_EMC_STEELWALL_4,
1972     EL_CRYSTAL,
1973     EL_GATE_1,
1974     EL_GATE_2,
1975     EL_GATE_3,
1976     EL_GATE_4,
1977     EL_GATE_1_GRAY,
1978     EL_GATE_2_GRAY,
1979     EL_GATE_3_GRAY,
1980     EL_GATE_4_GRAY,
1981     EL_GATE_1_GRAY_ACTIVE,
1982     EL_GATE_2_GRAY_ACTIVE,
1983     EL_GATE_3_GRAY_ACTIVE,
1984     EL_GATE_4_GRAY_ACTIVE,
1985     EL_EM_GATE_1,
1986     EL_EM_GATE_2,
1987     EL_EM_GATE_3,
1988     EL_EM_GATE_4,
1989     EL_EM_GATE_1_GRAY,
1990     EL_EM_GATE_2_GRAY,
1991     EL_EM_GATE_3_GRAY,
1992     EL_EM_GATE_4_GRAY,
1993     EL_EM_GATE_1_GRAY_ACTIVE,
1994     EL_EM_GATE_2_GRAY_ACTIVE,
1995     EL_EM_GATE_3_GRAY_ACTIVE,
1996     EL_EM_GATE_4_GRAY_ACTIVE,
1997     EL_EMC_GATE_5,
1998     EL_EMC_GATE_6,
1999     EL_EMC_GATE_7,
2000     EL_EMC_GATE_8,
2001     EL_EMC_GATE_5_GRAY,
2002     EL_EMC_GATE_6_GRAY,
2003     EL_EMC_GATE_7_GRAY,
2004     EL_EMC_GATE_8_GRAY,
2005     EL_EMC_GATE_5_GRAY_ACTIVE,
2006     EL_EMC_GATE_6_GRAY_ACTIVE,
2007     EL_EMC_GATE_7_GRAY_ACTIVE,
2008     EL_EMC_GATE_8_GRAY_ACTIVE,
2009     EL_SWITCHGATE_OPEN,
2010     EL_SWITCHGATE_OPENING,
2011     EL_SWITCHGATE_CLOSED,
2012     EL_SWITCHGATE_CLOSING,
2013 #if 0
2014     EL_SWITCHGATE_SWITCH_UP,
2015     EL_SWITCHGATE_SWITCH_DOWN,
2016 #endif
2017     EL_TIMEGATE_OPEN,
2018     EL_TIMEGATE_OPENING,
2019     EL_TIMEGATE_CLOSED,
2020     EL_TIMEGATE_CLOSING,
2021 #if 0
2022     EL_TIMEGATE_SWITCH,
2023     EL_TIMEGATE_SWITCH_ACTIVE,
2024 #endif
2025     EL_TUBE_ANY,
2026     EL_TUBE_VERTICAL,
2027     EL_TUBE_HORIZONTAL,
2028     EL_TUBE_VERTICAL_LEFT,
2029     EL_TUBE_VERTICAL_RIGHT,
2030     EL_TUBE_HORIZONTAL_UP,
2031     EL_TUBE_HORIZONTAL_DOWN,
2032     EL_TUBE_LEFT_UP,
2033     EL_TUBE_LEFT_DOWN,
2034     EL_TUBE_RIGHT_UP,
2035     EL_TUBE_RIGHT_DOWN,
2036
2037     -1
2038   };
2039
2040   static int ep_slippery[] =
2041   {
2042     EL_WALL_SLIPPERY,
2043     EL_BD_WALL,
2044     EL_ROCK,
2045     EL_BD_ROCK,
2046     EL_EMERALD,
2047     EL_BD_DIAMOND,
2048     EL_EMERALD_YELLOW,
2049     EL_EMERALD_RED,
2050     EL_EMERALD_PURPLE,
2051     EL_DIAMOND,
2052     EL_BOMB,
2053     EL_NUT,
2054     EL_ROBOT_WHEEL_ACTIVE,
2055     EL_ROBOT_WHEEL,
2056     EL_TIME_ORB_FULL,
2057     EL_TIME_ORB_EMPTY,
2058     EL_LAMP_ACTIVE,
2059     EL_LAMP,
2060     EL_ACID_POOL_TOPLEFT,
2061     EL_ACID_POOL_TOPRIGHT,
2062     EL_SATELLITE,
2063     EL_SP_ZONK,
2064     EL_SP_INFOTRON,
2065     EL_SP_CHIP_SINGLE,
2066     EL_SP_CHIP_LEFT,
2067     EL_SP_CHIP_RIGHT,
2068     EL_SP_CHIP_TOP,
2069     EL_SP_CHIP_BOTTOM,
2070     EL_SPEED_PILL,
2071     EL_STEELWALL_SLIPPERY,
2072     EL_PEARL,
2073     EL_CRYSTAL,
2074     EL_EMC_WALL_SLIPPERY_1,
2075     EL_EMC_WALL_SLIPPERY_2,
2076     EL_EMC_WALL_SLIPPERY_3,
2077     EL_EMC_WALL_SLIPPERY_4,
2078     EL_EMC_MAGIC_BALL,
2079     EL_EMC_MAGIC_BALL_ACTIVE,
2080
2081     -1
2082   };
2083
2084   static int ep_can_change[] =
2085   {
2086     -1
2087   };
2088
2089   static int ep_can_move[] =
2090   {
2091     /* same elements as in 'pb_can_move_into_acid' */
2092     EL_BUG,
2093     EL_SPACESHIP,
2094     EL_BD_BUTTERFLY,
2095     EL_BD_FIREFLY,
2096     EL_YAMYAM,
2097     EL_DARK_YAMYAM,
2098     EL_ROBOT,
2099     EL_PACMAN,
2100     EL_MOLE,
2101     EL_PENGUIN,
2102     EL_PIG,
2103     EL_DRAGON,
2104     EL_SATELLITE,
2105     EL_SP_SNIKSNAK,
2106     EL_SP_ELECTRON,
2107     EL_BALLOON,
2108     EL_SPRING,
2109     EL_EMC_ANDROID,
2110
2111     -1
2112   };
2113
2114   static int ep_can_fall[] =
2115   {
2116     EL_ROCK,
2117     EL_BD_ROCK,
2118     EL_EMERALD,
2119     EL_BD_DIAMOND,
2120     EL_EMERALD_YELLOW,
2121     EL_EMERALD_RED,
2122     EL_EMERALD_PURPLE,
2123     EL_DIAMOND,
2124     EL_BOMB,
2125     EL_NUT,
2126     EL_AMOEBA_DROP,
2127     EL_QUICKSAND_FULL,
2128     EL_MAGIC_WALL_FULL,
2129     EL_BD_MAGIC_WALL_FULL,
2130     EL_TIME_ORB_FULL,
2131     EL_TIME_ORB_EMPTY,
2132     EL_SP_ZONK,
2133     EL_SP_INFOTRON,
2134     EL_SP_DISK_ORANGE,
2135     EL_PEARL,
2136     EL_CRYSTAL,
2137     EL_SPRING,
2138     EL_DX_SUPABOMB,
2139
2140     -1
2141   };
2142
2143   static int ep_can_smash_player[] =
2144   {
2145     EL_ROCK,
2146     EL_BD_ROCK,
2147     EL_EMERALD,
2148     EL_BD_DIAMOND,
2149     EL_EMERALD_YELLOW,
2150     EL_EMERALD_RED,
2151     EL_EMERALD_PURPLE,
2152     EL_DIAMOND,
2153     EL_BOMB,
2154     EL_NUT,
2155     EL_AMOEBA_DROP,
2156     EL_TIME_ORB_FULL,
2157     EL_TIME_ORB_EMPTY,
2158     EL_SP_ZONK,
2159     EL_SP_INFOTRON,
2160     EL_SP_DISK_ORANGE,
2161     EL_PEARL,
2162     EL_CRYSTAL,
2163     EL_SPRING,
2164     EL_DX_SUPABOMB,
2165
2166     -1
2167   };
2168
2169   static int ep_can_smash_enemies[] =
2170   {
2171     EL_ROCK,
2172     EL_BD_ROCK,
2173     EL_SP_ZONK,
2174
2175     -1
2176   };
2177
2178   static int ep_can_smash_everything[] =
2179   {
2180     EL_ROCK,
2181     EL_BD_ROCK,
2182     EL_SP_ZONK,
2183
2184     -1
2185   };
2186
2187   static int ep_explodes_by_fire[] =
2188   {
2189     /* same elements as in 'ep_explodes_impact' */
2190     EL_BOMB,
2191     EL_SP_DISK_ORANGE,
2192     EL_DX_SUPABOMB,
2193
2194     /* same elements as in 'ep_explodes_smashed' */
2195     EL_SATELLITE,
2196     EL_PIG,
2197     EL_DRAGON,
2198     EL_MOLE,
2199
2200     /* new elements */
2201     EL_DYNAMITE_ACTIVE,
2202     EL_DYNAMITE,
2203     EL_DYNABOMB_PLAYER_1_ACTIVE,
2204     EL_DYNABOMB_PLAYER_2_ACTIVE,
2205     EL_DYNABOMB_PLAYER_3_ACTIVE,
2206     EL_DYNABOMB_PLAYER_4_ACTIVE,
2207     EL_DYNABOMB_INCREASE_NUMBER,
2208     EL_DYNABOMB_INCREASE_SIZE,
2209     EL_DYNABOMB_INCREASE_POWER,
2210     EL_SP_DISK_RED_ACTIVE,
2211     EL_BUG,
2212     EL_PENGUIN,
2213     EL_SP_DISK_RED,
2214     EL_SP_DISK_YELLOW,
2215     EL_SP_SNIKSNAK,
2216     EL_SP_ELECTRON,
2217 #if 0
2218     EL_BLACK_ORB,
2219 #endif
2220
2221     -1
2222   };
2223
2224   static int ep_explodes_smashed[] =
2225   {
2226     /* same elements as in 'ep_explodes_impact' */
2227     EL_BOMB,
2228     EL_SP_DISK_ORANGE,
2229     EL_DX_SUPABOMB,
2230
2231     /* new elements */
2232     EL_SATELLITE,
2233     EL_PIG,
2234     EL_DRAGON,
2235     EL_MOLE,
2236
2237     -1
2238   };
2239
2240   static int ep_explodes_impact[] =
2241   {
2242     EL_BOMB,
2243     EL_SP_DISK_ORANGE,
2244     EL_DX_SUPABOMB,
2245
2246     -1
2247   };
2248
2249   static int ep_walkable_over[] =
2250   {
2251     EL_EMPTY_SPACE,
2252     EL_SP_EMPTY_SPACE,
2253     EL_SOKOBAN_FIELD_EMPTY,
2254     EL_EXIT_OPEN,
2255     EL_SP_EXIT_OPEN,
2256     EL_SP_EXIT_OPENING,
2257     EL_GATE_1,
2258     EL_GATE_2,
2259     EL_GATE_3,
2260     EL_GATE_4,
2261     EL_GATE_1_GRAY,
2262     EL_GATE_2_GRAY,
2263     EL_GATE_3_GRAY,
2264     EL_GATE_4_GRAY,
2265     EL_GATE_1_GRAY_ACTIVE,
2266     EL_GATE_2_GRAY_ACTIVE,
2267     EL_GATE_3_GRAY_ACTIVE,
2268     EL_GATE_4_GRAY_ACTIVE,
2269     EL_PENGUIN,
2270     EL_PIG,
2271     EL_DRAGON,
2272
2273     -1
2274   };
2275
2276   static int ep_walkable_inside[] =
2277   {
2278     EL_TUBE_ANY,
2279     EL_TUBE_VERTICAL,
2280     EL_TUBE_HORIZONTAL,
2281     EL_TUBE_VERTICAL_LEFT,
2282     EL_TUBE_VERTICAL_RIGHT,
2283     EL_TUBE_HORIZONTAL_UP,
2284     EL_TUBE_HORIZONTAL_DOWN,
2285     EL_TUBE_LEFT_UP,
2286     EL_TUBE_LEFT_DOWN,
2287     EL_TUBE_RIGHT_UP,
2288     EL_TUBE_RIGHT_DOWN,
2289
2290     -1
2291   };
2292
2293   static int ep_walkable_under[] =
2294   {
2295     -1
2296   };
2297
2298   static int ep_passable_over[] =
2299   {
2300     EL_EM_GATE_1,
2301     EL_EM_GATE_2,
2302     EL_EM_GATE_3,
2303     EL_EM_GATE_4,
2304     EL_EM_GATE_1_GRAY,
2305     EL_EM_GATE_2_GRAY,
2306     EL_EM_GATE_3_GRAY,
2307     EL_EM_GATE_4_GRAY,
2308     EL_EM_GATE_1_GRAY_ACTIVE,
2309     EL_EM_GATE_2_GRAY_ACTIVE,
2310     EL_EM_GATE_3_GRAY_ACTIVE,
2311     EL_EM_GATE_4_GRAY_ACTIVE,
2312     EL_EMC_GATE_5,
2313     EL_EMC_GATE_6,
2314     EL_EMC_GATE_7,
2315     EL_EMC_GATE_8,
2316     EL_EMC_GATE_5_GRAY,
2317     EL_EMC_GATE_6_GRAY,
2318     EL_EMC_GATE_7_GRAY,
2319     EL_EMC_GATE_8_GRAY,
2320     EL_EMC_GATE_5_GRAY_ACTIVE,
2321     EL_EMC_GATE_6_GRAY_ACTIVE,
2322     EL_EMC_GATE_7_GRAY_ACTIVE,
2323     EL_EMC_GATE_8_GRAY_ACTIVE,
2324     EL_SWITCHGATE_OPEN,
2325     EL_TIMEGATE_OPEN,
2326
2327     -1
2328   };
2329
2330   static int ep_passable_inside[] =
2331   {
2332     EL_SP_PORT_LEFT,
2333     EL_SP_PORT_RIGHT,
2334     EL_SP_PORT_UP,
2335     EL_SP_PORT_DOWN,
2336     EL_SP_PORT_HORIZONTAL,
2337     EL_SP_PORT_VERTICAL,
2338     EL_SP_PORT_ANY,
2339     EL_SP_GRAVITY_PORT_LEFT,
2340     EL_SP_GRAVITY_PORT_RIGHT,
2341     EL_SP_GRAVITY_PORT_UP,
2342     EL_SP_GRAVITY_PORT_DOWN,
2343     EL_SP_GRAVITY_ON_PORT_LEFT,
2344     EL_SP_GRAVITY_ON_PORT_RIGHT,
2345     EL_SP_GRAVITY_ON_PORT_UP,
2346     EL_SP_GRAVITY_ON_PORT_DOWN,
2347     EL_SP_GRAVITY_OFF_PORT_LEFT,
2348     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2349     EL_SP_GRAVITY_OFF_PORT_UP,
2350     EL_SP_GRAVITY_OFF_PORT_DOWN,
2351
2352     -1
2353   };
2354
2355   static int ep_passable_under[] =
2356   {
2357     -1
2358   };
2359
2360   static int ep_droppable[] =
2361   {
2362     -1
2363   };
2364
2365   static int ep_explodes_1x1_old[] =
2366   {
2367     -1
2368   };
2369
2370   static int ep_pushable[] =
2371   {
2372     EL_ROCK,
2373     EL_BOMB,
2374     EL_DX_SUPABOMB,
2375     EL_NUT,
2376     EL_TIME_ORB_EMPTY,
2377     EL_SP_ZONK,
2378     EL_SP_DISK_ORANGE,
2379     EL_SPRING,
2380     EL_BD_ROCK,
2381     EL_SOKOBAN_OBJECT,
2382     EL_SOKOBAN_FIELD_FULL,
2383     EL_SATELLITE,
2384     EL_SP_DISK_YELLOW,
2385     EL_BALLOON,
2386     EL_EMC_ANDROID,
2387
2388     -1
2389   };
2390
2391   static int ep_explodes_cross_old[] =
2392   {
2393     -1
2394   };
2395
2396   static int ep_protected[] =
2397   {
2398     /* same elements as in 'ep_walkable_inside' */
2399     EL_TUBE_ANY,
2400     EL_TUBE_VERTICAL,
2401     EL_TUBE_HORIZONTAL,
2402     EL_TUBE_VERTICAL_LEFT,
2403     EL_TUBE_VERTICAL_RIGHT,
2404     EL_TUBE_HORIZONTAL_UP,
2405     EL_TUBE_HORIZONTAL_DOWN,
2406     EL_TUBE_LEFT_UP,
2407     EL_TUBE_LEFT_DOWN,
2408     EL_TUBE_RIGHT_UP,
2409     EL_TUBE_RIGHT_DOWN,
2410
2411     /* same elements as in 'ep_passable_over' */
2412     EL_EM_GATE_1,
2413     EL_EM_GATE_2,
2414     EL_EM_GATE_3,
2415     EL_EM_GATE_4,
2416     EL_EM_GATE_1_GRAY,
2417     EL_EM_GATE_2_GRAY,
2418     EL_EM_GATE_3_GRAY,
2419     EL_EM_GATE_4_GRAY,
2420     EL_EM_GATE_1_GRAY_ACTIVE,
2421     EL_EM_GATE_2_GRAY_ACTIVE,
2422     EL_EM_GATE_3_GRAY_ACTIVE,
2423     EL_EM_GATE_4_GRAY_ACTIVE,
2424     EL_EMC_GATE_5,
2425     EL_EMC_GATE_6,
2426     EL_EMC_GATE_7,
2427     EL_EMC_GATE_8,
2428     EL_EMC_GATE_5_GRAY,
2429     EL_EMC_GATE_6_GRAY,
2430     EL_EMC_GATE_7_GRAY,
2431     EL_EMC_GATE_8_GRAY,
2432     EL_EMC_GATE_5_GRAY_ACTIVE,
2433     EL_EMC_GATE_6_GRAY_ACTIVE,
2434     EL_EMC_GATE_7_GRAY_ACTIVE,
2435     EL_EMC_GATE_8_GRAY_ACTIVE,
2436     EL_SWITCHGATE_OPEN,
2437     EL_TIMEGATE_OPEN,
2438
2439     /* same elements as in 'ep_passable_inside' */
2440     EL_SP_PORT_LEFT,
2441     EL_SP_PORT_RIGHT,
2442     EL_SP_PORT_UP,
2443     EL_SP_PORT_DOWN,
2444     EL_SP_PORT_HORIZONTAL,
2445     EL_SP_PORT_VERTICAL,
2446     EL_SP_PORT_ANY,
2447     EL_SP_GRAVITY_PORT_LEFT,
2448     EL_SP_GRAVITY_PORT_RIGHT,
2449     EL_SP_GRAVITY_PORT_UP,
2450     EL_SP_GRAVITY_PORT_DOWN,
2451     EL_SP_GRAVITY_ON_PORT_LEFT,
2452     EL_SP_GRAVITY_ON_PORT_RIGHT,
2453     EL_SP_GRAVITY_ON_PORT_UP,
2454     EL_SP_GRAVITY_ON_PORT_DOWN,
2455     EL_SP_GRAVITY_OFF_PORT_LEFT,
2456     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2457     EL_SP_GRAVITY_OFF_PORT_UP,
2458     EL_SP_GRAVITY_OFF_PORT_DOWN,
2459
2460     -1
2461   };
2462
2463   static int ep_throwable[] =
2464   {
2465     -1
2466   };
2467
2468   static int ep_can_explode[] =
2469   {
2470     /* same elements as in 'ep_explodes_impact' */
2471     EL_BOMB,
2472     EL_SP_DISK_ORANGE,
2473     EL_DX_SUPABOMB,
2474
2475     /* same elements as in 'ep_explodes_smashed' */
2476     EL_SATELLITE,
2477     EL_PIG,
2478     EL_DRAGON,
2479     EL_MOLE,
2480
2481     /* elements that can explode by explosion or by dragonfire */
2482     EL_DYNAMITE_ACTIVE,
2483     EL_DYNAMITE,
2484     EL_DYNABOMB_PLAYER_1_ACTIVE,
2485     EL_DYNABOMB_PLAYER_2_ACTIVE,
2486     EL_DYNABOMB_PLAYER_3_ACTIVE,
2487     EL_DYNABOMB_PLAYER_4_ACTIVE,
2488     EL_DYNABOMB_INCREASE_NUMBER,
2489     EL_DYNABOMB_INCREASE_SIZE,
2490     EL_DYNABOMB_INCREASE_POWER,
2491     EL_SP_DISK_RED_ACTIVE,
2492     EL_BUG,
2493     EL_PENGUIN,
2494     EL_SP_DISK_RED,
2495     EL_SP_DISK_YELLOW,
2496     EL_SP_SNIKSNAK,
2497     EL_SP_ELECTRON,
2498
2499     /* elements that can explode only by explosion */
2500     EL_BLACK_ORB,
2501
2502     -1
2503   };
2504
2505   static int ep_gravity_reachable[] =
2506   {
2507     EL_SAND,
2508     EL_SP_BASE,
2509     EL_TRAP,
2510     EL_INVISIBLE_SAND,
2511     EL_INVISIBLE_SAND_ACTIVE,
2512     EL_SP_PORT_LEFT,
2513     EL_SP_PORT_RIGHT,
2514     EL_SP_PORT_UP,
2515     EL_SP_PORT_DOWN,
2516     EL_SP_PORT_HORIZONTAL,
2517     EL_SP_PORT_VERTICAL,
2518     EL_SP_PORT_ANY,
2519     EL_SP_GRAVITY_PORT_LEFT,
2520     EL_SP_GRAVITY_PORT_RIGHT,
2521     EL_SP_GRAVITY_PORT_UP,
2522     EL_SP_GRAVITY_PORT_DOWN,
2523     EL_SP_GRAVITY_ON_PORT_LEFT,
2524     EL_SP_GRAVITY_ON_PORT_RIGHT,
2525     EL_SP_GRAVITY_ON_PORT_UP,
2526     EL_SP_GRAVITY_ON_PORT_DOWN,
2527     EL_SP_GRAVITY_OFF_PORT_LEFT,
2528     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2529     EL_SP_GRAVITY_OFF_PORT_UP,
2530     EL_SP_GRAVITY_OFF_PORT_DOWN,
2531     EL_EMC_GRASS,
2532
2533     -1
2534   };
2535
2536   static int ep_player[] =
2537   {
2538     EL_PLAYER_1,
2539     EL_PLAYER_2,
2540     EL_PLAYER_3,
2541     EL_PLAYER_4,
2542     EL_SP_MURPHY,
2543     EL_SOKOBAN_FIELD_PLAYER,
2544     EL_TRIGGER_PLAYER,
2545
2546     -1
2547   };
2548
2549   static int ep_can_pass_magic_wall[] =
2550   {
2551     EL_ROCK,
2552     EL_BD_ROCK,
2553     EL_EMERALD,
2554     EL_BD_DIAMOND,
2555     EL_EMERALD_YELLOW,
2556     EL_EMERALD_RED,
2557     EL_EMERALD_PURPLE,
2558     EL_DIAMOND,
2559
2560     -1
2561   };
2562
2563   static int ep_switchable[] =
2564   {
2565     EL_ROBOT_WHEEL,
2566     EL_SP_TERMINAL,
2567     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2568     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2569     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2570     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2571     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2572     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2573     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2574     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2575     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2576     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2577     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2578     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2579     EL_SWITCHGATE_SWITCH_UP,
2580     EL_SWITCHGATE_SWITCH_DOWN,
2581     EL_LIGHT_SWITCH,
2582     EL_LIGHT_SWITCH_ACTIVE,
2583     EL_TIMEGATE_SWITCH,
2584     EL_BALLOON_SWITCH_LEFT,
2585     EL_BALLOON_SWITCH_RIGHT,
2586     EL_BALLOON_SWITCH_UP,
2587     EL_BALLOON_SWITCH_DOWN,
2588     EL_BALLOON_SWITCH_ANY,
2589     EL_BALLOON_SWITCH_NONE,
2590     EL_LAMP,
2591     EL_TIME_ORB_FULL,
2592     EL_EMC_MAGIC_BALL_SWITCH,
2593     EL_EMC_MAGIC_BALL_SWITCH_ACTIVE,
2594
2595     -1
2596   };
2597
2598   static int ep_bd_element[] =
2599   {
2600     EL_EMPTY,
2601     EL_SAND,
2602     EL_WALL_SLIPPERY,
2603     EL_BD_WALL,
2604     EL_ROCK,
2605     EL_BD_ROCK,
2606     EL_BD_DIAMOND,
2607     EL_BD_MAGIC_WALL,
2608     EL_EXIT_CLOSED,
2609     EL_EXIT_OPEN,
2610     EL_STEELWALL,
2611     EL_PLAYER_1,
2612     EL_PLAYER_2,
2613     EL_PLAYER_3,
2614     EL_PLAYER_4,
2615     EL_BD_FIREFLY,
2616     EL_BD_FIREFLY_1,
2617     EL_BD_FIREFLY_2,
2618     EL_BD_FIREFLY_3,
2619     EL_BD_FIREFLY_4,
2620     EL_BD_BUTTERFLY,
2621     EL_BD_BUTTERFLY_1,
2622     EL_BD_BUTTERFLY_2,
2623     EL_BD_BUTTERFLY_3,
2624     EL_BD_BUTTERFLY_4,
2625     EL_BD_AMOEBA,
2626     EL_CHAR_QUESTION,
2627     EL_UNKNOWN,
2628
2629     -1
2630   };
2631
2632   static int ep_sp_element[] =
2633   {
2634     /* should always be valid */
2635     EL_EMPTY,
2636
2637     /* standard classic Supaplex elements */
2638     EL_SP_EMPTY,
2639     EL_SP_ZONK,
2640     EL_SP_BASE,
2641     EL_SP_MURPHY,
2642     EL_SP_INFOTRON,
2643     EL_SP_CHIP_SINGLE,
2644     EL_SP_HARDWARE_GRAY,
2645     EL_SP_EXIT_CLOSED,
2646     EL_SP_EXIT_OPEN,
2647     EL_SP_DISK_ORANGE,
2648     EL_SP_PORT_RIGHT,
2649     EL_SP_PORT_DOWN,
2650     EL_SP_PORT_LEFT,
2651     EL_SP_PORT_UP,
2652     EL_SP_GRAVITY_PORT_RIGHT,
2653     EL_SP_GRAVITY_PORT_DOWN,
2654     EL_SP_GRAVITY_PORT_LEFT,
2655     EL_SP_GRAVITY_PORT_UP,
2656     EL_SP_SNIKSNAK,
2657     EL_SP_DISK_YELLOW,
2658     EL_SP_TERMINAL,
2659     EL_SP_DISK_RED,
2660     EL_SP_PORT_VERTICAL,
2661     EL_SP_PORT_HORIZONTAL,
2662     EL_SP_PORT_ANY,
2663     EL_SP_ELECTRON,
2664     EL_SP_BUGGY_BASE,
2665     EL_SP_CHIP_LEFT,
2666     EL_SP_CHIP_RIGHT,
2667     EL_SP_HARDWARE_BASE_1,
2668     EL_SP_HARDWARE_GREEN,
2669     EL_SP_HARDWARE_BLUE,
2670     EL_SP_HARDWARE_RED,
2671     EL_SP_HARDWARE_YELLOW,
2672     EL_SP_HARDWARE_BASE_2,
2673     EL_SP_HARDWARE_BASE_3,
2674     EL_SP_HARDWARE_BASE_4,
2675     EL_SP_HARDWARE_BASE_5,
2676     EL_SP_HARDWARE_BASE_6,
2677     EL_SP_CHIP_TOP,
2678     EL_SP_CHIP_BOTTOM,
2679
2680     /* additional elements that appeared in newer Supaplex levels */
2681     EL_INVISIBLE_WALL,
2682
2683     /* additional gravity port elements (not switching, but setting gravity) */
2684     EL_SP_GRAVITY_ON_PORT_LEFT,
2685     EL_SP_GRAVITY_ON_PORT_RIGHT,
2686     EL_SP_GRAVITY_ON_PORT_UP,
2687     EL_SP_GRAVITY_ON_PORT_DOWN,
2688     EL_SP_GRAVITY_OFF_PORT_LEFT,
2689     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2690     EL_SP_GRAVITY_OFF_PORT_UP,
2691     EL_SP_GRAVITY_OFF_PORT_DOWN,
2692
2693     /* more than one Murphy in a level results in an inactive clone */
2694     EL_SP_MURPHY_CLONE,
2695
2696     /* runtime Supaplex elements */
2697     EL_SP_DISK_RED_ACTIVE,
2698     EL_SP_TERMINAL_ACTIVE,
2699     EL_SP_BUGGY_BASE_ACTIVATING,
2700     EL_SP_BUGGY_BASE_ACTIVE,
2701     EL_SP_EXIT_OPENING,
2702     EL_SP_EXIT_CLOSING,
2703
2704     -1
2705   };
2706
2707   static int ep_sb_element[] =
2708   {
2709     EL_EMPTY,
2710     EL_STEELWALL,
2711     EL_SOKOBAN_OBJECT,
2712     EL_SOKOBAN_FIELD_EMPTY,
2713     EL_SOKOBAN_FIELD_FULL,
2714     EL_SOKOBAN_FIELD_PLAYER,
2715     EL_PLAYER_1,
2716     EL_PLAYER_2,
2717     EL_PLAYER_3,
2718     EL_PLAYER_4,
2719     EL_INVISIBLE_STEELWALL,
2720
2721     -1
2722   };
2723
2724   static int ep_gem[] =
2725   {
2726     EL_BD_DIAMOND,
2727     EL_EMERALD,
2728     EL_EMERALD_YELLOW,
2729     EL_EMERALD_RED,
2730     EL_EMERALD_PURPLE,
2731     EL_DIAMOND,
2732
2733     -1
2734   };
2735
2736   static int ep_food_dark_yamyam[] =
2737   {
2738     EL_SAND,
2739     EL_BUG,
2740     EL_SPACESHIP,
2741     EL_BD_BUTTERFLY,
2742     EL_BD_FIREFLY,
2743     EL_YAMYAM,
2744     EL_ROBOT,
2745     EL_PACMAN,
2746     EL_AMOEBA_DROP,
2747     EL_AMOEBA_DEAD,
2748     EL_AMOEBA_WET,
2749     EL_AMOEBA_DRY,
2750     EL_AMOEBA_FULL,
2751     EL_BD_AMOEBA,
2752     EL_EMERALD,
2753     EL_BD_DIAMOND,
2754     EL_EMERALD_YELLOW,
2755     EL_EMERALD_RED,
2756     EL_EMERALD_PURPLE,
2757     EL_DIAMOND,
2758     EL_PEARL,
2759     EL_CRYSTAL,
2760
2761     -1
2762   };
2763
2764   static int ep_food_penguin[] =
2765   {
2766     EL_EMERALD,
2767     EL_BD_DIAMOND,
2768     EL_EMERALD_YELLOW,
2769     EL_EMERALD_RED,
2770     EL_EMERALD_PURPLE,
2771     EL_DIAMOND,
2772     EL_PEARL,
2773     EL_CRYSTAL,
2774
2775     -1
2776   };
2777
2778   static int ep_food_pig[] =
2779   {
2780     EL_EMERALD,
2781     EL_BD_DIAMOND,
2782     EL_EMERALD_YELLOW,
2783     EL_EMERALD_RED,
2784     EL_EMERALD_PURPLE,
2785     EL_DIAMOND,
2786
2787     -1
2788   };
2789
2790   static int ep_historic_wall[] =
2791   {
2792     EL_STEELWALL,
2793     EL_GATE_1,
2794     EL_GATE_2,
2795     EL_GATE_3,
2796     EL_GATE_4,
2797     EL_GATE_1_GRAY,
2798     EL_GATE_2_GRAY,
2799     EL_GATE_3_GRAY,
2800     EL_GATE_4_GRAY,
2801     EL_GATE_1_GRAY_ACTIVE,
2802     EL_GATE_2_GRAY_ACTIVE,
2803     EL_GATE_3_GRAY_ACTIVE,
2804     EL_GATE_4_GRAY_ACTIVE,
2805     EL_EM_GATE_1,
2806     EL_EM_GATE_2,
2807     EL_EM_GATE_3,
2808     EL_EM_GATE_4,
2809     EL_EM_GATE_1_GRAY,
2810     EL_EM_GATE_2_GRAY,
2811     EL_EM_GATE_3_GRAY,
2812     EL_EM_GATE_4_GRAY,
2813     EL_EM_GATE_1_GRAY_ACTIVE,
2814     EL_EM_GATE_2_GRAY_ACTIVE,
2815     EL_EM_GATE_3_GRAY_ACTIVE,
2816     EL_EM_GATE_4_GRAY_ACTIVE,
2817     EL_EXIT_CLOSED,
2818     EL_EXIT_OPENING,
2819     EL_EXIT_OPEN,
2820     EL_WALL,
2821     EL_WALL_SLIPPERY,
2822     EL_EXPANDABLE_WALL,
2823     EL_EXPANDABLE_WALL_HORIZONTAL,
2824     EL_EXPANDABLE_WALL_VERTICAL,
2825     EL_EXPANDABLE_WALL_ANY,
2826     EL_EXPANDABLE_WALL_GROWING,
2827     EL_BD_WALL,
2828     EL_SP_CHIP_SINGLE,
2829     EL_SP_CHIP_LEFT,
2830     EL_SP_CHIP_RIGHT,
2831     EL_SP_CHIP_TOP,
2832     EL_SP_CHIP_BOTTOM,
2833     EL_SP_HARDWARE_GRAY,
2834     EL_SP_HARDWARE_GREEN,
2835     EL_SP_HARDWARE_BLUE,
2836     EL_SP_HARDWARE_RED,
2837     EL_SP_HARDWARE_YELLOW,
2838     EL_SP_HARDWARE_BASE_1,
2839     EL_SP_HARDWARE_BASE_2,
2840     EL_SP_HARDWARE_BASE_3,
2841     EL_SP_HARDWARE_BASE_4,
2842     EL_SP_HARDWARE_BASE_5,
2843     EL_SP_HARDWARE_BASE_6,
2844     EL_SP_TERMINAL,
2845     EL_SP_TERMINAL_ACTIVE,
2846     EL_SP_EXIT_CLOSED,
2847     EL_SP_EXIT_OPEN,
2848     EL_INVISIBLE_STEELWALL,
2849     EL_INVISIBLE_STEELWALL_ACTIVE,
2850     EL_INVISIBLE_WALL,
2851     EL_INVISIBLE_WALL_ACTIVE,
2852     EL_STEELWALL_SLIPPERY,
2853     EL_EMC_STEELWALL_1,
2854     EL_EMC_STEELWALL_2,
2855     EL_EMC_STEELWALL_3,
2856     EL_EMC_STEELWALL_4,
2857     EL_EMC_WALL_1,
2858     EL_EMC_WALL_2,
2859     EL_EMC_WALL_3,
2860     EL_EMC_WALL_4,
2861     EL_EMC_WALL_5,
2862     EL_EMC_WALL_6,
2863     EL_EMC_WALL_7,
2864     EL_EMC_WALL_8,
2865
2866     -1
2867   };
2868
2869   static int ep_historic_solid[] =
2870   {
2871     EL_WALL,
2872     EL_EXPANDABLE_WALL,
2873     EL_EXPANDABLE_WALL_HORIZONTAL,
2874     EL_EXPANDABLE_WALL_VERTICAL,
2875     EL_EXPANDABLE_WALL_ANY,
2876     EL_BD_WALL,
2877     EL_WALL_SLIPPERY,
2878     EL_EXIT_CLOSED,
2879     EL_EXIT_OPENING,
2880     EL_EXIT_OPEN,
2881     EL_AMOEBA_DEAD,
2882     EL_AMOEBA_WET,
2883     EL_AMOEBA_DRY,
2884     EL_AMOEBA_FULL,
2885     EL_BD_AMOEBA,
2886     EL_QUICKSAND_EMPTY,
2887     EL_QUICKSAND_FULL,
2888     EL_QUICKSAND_FILLING,
2889     EL_QUICKSAND_EMPTYING,
2890     EL_MAGIC_WALL,
2891     EL_MAGIC_WALL_ACTIVE,
2892     EL_MAGIC_WALL_EMPTYING,
2893     EL_MAGIC_WALL_FILLING,
2894     EL_MAGIC_WALL_FULL,
2895     EL_MAGIC_WALL_DEAD,
2896     EL_BD_MAGIC_WALL,
2897     EL_BD_MAGIC_WALL_ACTIVE,
2898     EL_BD_MAGIC_WALL_EMPTYING,
2899     EL_BD_MAGIC_WALL_FULL,
2900     EL_BD_MAGIC_WALL_FILLING,
2901     EL_BD_MAGIC_WALL_DEAD,
2902     EL_GAME_OF_LIFE,
2903     EL_BIOMAZE,
2904     EL_SP_CHIP_SINGLE,
2905     EL_SP_CHIP_LEFT,
2906     EL_SP_CHIP_RIGHT,
2907     EL_SP_CHIP_TOP,
2908     EL_SP_CHIP_BOTTOM,
2909     EL_SP_TERMINAL,
2910     EL_SP_TERMINAL_ACTIVE,
2911     EL_SP_EXIT_CLOSED,
2912     EL_SP_EXIT_OPEN,
2913     EL_INVISIBLE_WALL,
2914     EL_INVISIBLE_WALL_ACTIVE,
2915     EL_SWITCHGATE_SWITCH_UP,
2916     EL_SWITCHGATE_SWITCH_DOWN,
2917     EL_TIMEGATE_SWITCH,
2918     EL_TIMEGATE_SWITCH_ACTIVE,
2919     EL_EMC_WALL_1,
2920     EL_EMC_WALL_2,
2921     EL_EMC_WALL_3,
2922     EL_EMC_WALL_4,
2923     EL_EMC_WALL_5,
2924     EL_EMC_WALL_6,
2925     EL_EMC_WALL_7,
2926     EL_EMC_WALL_8,
2927     EL_WALL_PEARL,
2928     EL_WALL_CRYSTAL,
2929
2930     /* the following elements are a direct copy of "indestructible" elements,
2931        except "EL_ACID", which is "indestructible", but not "solid"! */
2932 #if 0
2933     EL_ACID,
2934 #endif
2935     EL_STEELWALL,
2936     EL_ACID_POOL_TOPLEFT,
2937     EL_ACID_POOL_TOPRIGHT,
2938     EL_ACID_POOL_BOTTOMLEFT,
2939     EL_ACID_POOL_BOTTOM,
2940     EL_ACID_POOL_BOTTOMRIGHT,
2941     EL_SP_HARDWARE_GRAY,
2942     EL_SP_HARDWARE_GREEN,
2943     EL_SP_HARDWARE_BLUE,
2944     EL_SP_HARDWARE_RED,
2945     EL_SP_HARDWARE_YELLOW,
2946     EL_SP_HARDWARE_BASE_1,
2947     EL_SP_HARDWARE_BASE_2,
2948     EL_SP_HARDWARE_BASE_3,
2949     EL_SP_HARDWARE_BASE_4,
2950     EL_SP_HARDWARE_BASE_5,
2951     EL_SP_HARDWARE_BASE_6,
2952     EL_INVISIBLE_STEELWALL,
2953     EL_INVISIBLE_STEELWALL_ACTIVE,
2954     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2955     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2956     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2957     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2958     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2959     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2960     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2961     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2962     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2963     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2964     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2965     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2966     EL_LIGHT_SWITCH,
2967     EL_LIGHT_SWITCH_ACTIVE,
2968     EL_SIGN_EXCLAMATION,
2969     EL_SIGN_RADIOACTIVITY,
2970     EL_SIGN_STOP,
2971     EL_SIGN_WHEELCHAIR,
2972     EL_SIGN_PARKING,
2973     EL_SIGN_ONEWAY,
2974     EL_SIGN_HEART,
2975     EL_SIGN_TRIANGLE,
2976     EL_SIGN_ROUND,
2977     EL_SIGN_EXIT,
2978     EL_SIGN_YINYANG,
2979     EL_SIGN_OTHER,
2980     EL_STEELWALL_SLIPPERY,
2981     EL_EMC_STEELWALL_1,
2982     EL_EMC_STEELWALL_2,
2983     EL_EMC_STEELWALL_3,
2984     EL_EMC_STEELWALL_4,
2985     EL_CRYSTAL,
2986     EL_GATE_1,
2987     EL_GATE_2,
2988     EL_GATE_3,
2989     EL_GATE_4,
2990     EL_GATE_1_GRAY,
2991     EL_GATE_2_GRAY,
2992     EL_GATE_3_GRAY,
2993     EL_GATE_4_GRAY,
2994     EL_GATE_1_GRAY_ACTIVE,
2995     EL_GATE_2_GRAY_ACTIVE,
2996     EL_GATE_3_GRAY_ACTIVE,
2997     EL_GATE_4_GRAY_ACTIVE,
2998     EL_EM_GATE_1,
2999     EL_EM_GATE_2,
3000     EL_EM_GATE_3,
3001     EL_EM_GATE_4,
3002     EL_EM_GATE_1_GRAY,
3003     EL_EM_GATE_2_GRAY,
3004     EL_EM_GATE_3_GRAY,
3005     EL_EM_GATE_4_GRAY,
3006     EL_EM_GATE_1_GRAY_ACTIVE,
3007     EL_EM_GATE_2_GRAY_ACTIVE,
3008     EL_EM_GATE_3_GRAY_ACTIVE,
3009     EL_EM_GATE_4_GRAY_ACTIVE,
3010     EL_SWITCHGATE_OPEN,
3011     EL_SWITCHGATE_OPENING,
3012     EL_SWITCHGATE_CLOSED,
3013     EL_SWITCHGATE_CLOSING,
3014     EL_TIMEGATE_OPEN,
3015     EL_TIMEGATE_OPENING,
3016     EL_TIMEGATE_CLOSED,
3017     EL_TIMEGATE_CLOSING,
3018     EL_TUBE_ANY,
3019     EL_TUBE_VERTICAL,
3020     EL_TUBE_HORIZONTAL,
3021     EL_TUBE_VERTICAL_LEFT,
3022     EL_TUBE_VERTICAL_RIGHT,
3023     EL_TUBE_HORIZONTAL_UP,
3024     EL_TUBE_HORIZONTAL_DOWN,
3025     EL_TUBE_LEFT_UP,
3026     EL_TUBE_LEFT_DOWN,
3027     EL_TUBE_RIGHT_UP,
3028     EL_TUBE_RIGHT_DOWN,
3029
3030     -1
3031   };
3032
3033   static int ep_classic_enemy[] =
3034   {
3035     EL_BUG,
3036     EL_SPACESHIP,
3037     EL_BD_BUTTERFLY,
3038     EL_BD_FIREFLY,
3039
3040     EL_YAMYAM,
3041     EL_DARK_YAMYAM,
3042     EL_ROBOT,
3043     EL_PACMAN,
3044     EL_SP_SNIKSNAK,
3045     EL_SP_ELECTRON,
3046
3047     -1
3048   };
3049
3050   static int ep_belt[] =
3051   {
3052     EL_CONVEYOR_BELT_1_LEFT,
3053     EL_CONVEYOR_BELT_1_MIDDLE,
3054     EL_CONVEYOR_BELT_1_RIGHT,
3055     EL_CONVEYOR_BELT_2_LEFT,
3056     EL_CONVEYOR_BELT_2_MIDDLE,
3057     EL_CONVEYOR_BELT_2_RIGHT,
3058     EL_CONVEYOR_BELT_3_LEFT,
3059     EL_CONVEYOR_BELT_3_MIDDLE,
3060     EL_CONVEYOR_BELT_3_RIGHT,
3061     EL_CONVEYOR_BELT_4_LEFT,
3062     EL_CONVEYOR_BELT_4_MIDDLE,
3063     EL_CONVEYOR_BELT_4_RIGHT,
3064
3065     -1
3066   };
3067
3068   static int ep_belt_active[] =
3069   {
3070     EL_CONVEYOR_BELT_1_LEFT_ACTIVE,
3071     EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE,
3072     EL_CONVEYOR_BELT_1_RIGHT_ACTIVE,
3073     EL_CONVEYOR_BELT_2_LEFT_ACTIVE,
3074     EL_CONVEYOR_BELT_2_MIDDLE_ACTIVE,
3075     EL_CONVEYOR_BELT_2_RIGHT_ACTIVE,
3076     EL_CONVEYOR_BELT_3_LEFT_ACTIVE,
3077     EL_CONVEYOR_BELT_3_MIDDLE_ACTIVE,
3078     EL_CONVEYOR_BELT_3_RIGHT_ACTIVE,
3079     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
3080     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
3081     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
3082
3083     -1
3084   };
3085
3086   static int ep_belt_switch[] =
3087   {
3088     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3089     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3090     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3091     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3092     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3093     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3094     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3095     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3096     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3097     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3098     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3099     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3100
3101     -1
3102   };
3103
3104   static int ep_tube[] =
3105   {
3106     EL_TUBE_LEFT_UP,
3107     EL_TUBE_LEFT_DOWN,
3108     EL_TUBE_RIGHT_UP,
3109     EL_TUBE_RIGHT_DOWN,
3110     EL_TUBE_HORIZONTAL,
3111     EL_TUBE_HORIZONTAL_UP,
3112     EL_TUBE_HORIZONTAL_DOWN,
3113     EL_TUBE_VERTICAL,
3114     EL_TUBE_VERTICAL_LEFT,
3115     EL_TUBE_VERTICAL_RIGHT,
3116     EL_TUBE_ANY,
3117
3118     -1
3119   };
3120
3121   static int ep_keygate[] =
3122   {
3123     EL_GATE_1,
3124     EL_GATE_2,
3125     EL_GATE_3,
3126     EL_GATE_4,
3127     EL_GATE_1_GRAY,
3128     EL_GATE_2_GRAY,
3129     EL_GATE_3_GRAY,
3130     EL_GATE_4_GRAY,
3131     EL_GATE_1_GRAY_ACTIVE,
3132     EL_GATE_2_GRAY_ACTIVE,
3133     EL_GATE_3_GRAY_ACTIVE,
3134     EL_GATE_4_GRAY_ACTIVE,
3135     EL_EM_GATE_1,
3136     EL_EM_GATE_2,
3137     EL_EM_GATE_3,
3138     EL_EM_GATE_4,
3139     EL_EM_GATE_1_GRAY,
3140     EL_EM_GATE_2_GRAY,
3141     EL_EM_GATE_3_GRAY,
3142     EL_EM_GATE_4_GRAY,
3143     EL_EM_GATE_1_GRAY_ACTIVE,
3144     EL_EM_GATE_2_GRAY_ACTIVE,
3145     EL_EM_GATE_3_GRAY_ACTIVE,
3146     EL_EM_GATE_4_GRAY_ACTIVE,
3147     EL_EMC_GATE_5,
3148     EL_EMC_GATE_6,
3149     EL_EMC_GATE_7,
3150     EL_EMC_GATE_8,
3151     EL_EMC_GATE_5_GRAY,
3152     EL_EMC_GATE_6_GRAY,
3153     EL_EMC_GATE_7_GRAY,
3154     EL_EMC_GATE_8_GRAY,
3155     EL_EMC_GATE_5_GRAY_ACTIVE,
3156     EL_EMC_GATE_6_GRAY_ACTIVE,
3157     EL_EMC_GATE_7_GRAY_ACTIVE,
3158     EL_EMC_GATE_8_GRAY_ACTIVE,
3159
3160     -1
3161   };
3162
3163   static int ep_amoeboid[] =
3164   {
3165     EL_AMOEBA_DEAD,
3166     EL_AMOEBA_WET,
3167     EL_AMOEBA_DRY,
3168     EL_AMOEBA_FULL,
3169     EL_BD_AMOEBA,
3170
3171     -1
3172   };
3173
3174   static int ep_amoebalive[] =
3175   {
3176     EL_AMOEBA_WET,
3177     EL_AMOEBA_DRY,
3178     EL_AMOEBA_FULL,
3179     EL_BD_AMOEBA,
3180
3181     -1
3182   };
3183
3184   static int ep_has_content[] =
3185   {
3186     EL_PLAYER_1,
3187     EL_PLAYER_2,
3188     EL_PLAYER_3,
3189     EL_PLAYER_4,
3190     EL_SP_MURPHY,
3191     EL_YAMYAM,
3192     EL_AMOEBA_WET,
3193     EL_AMOEBA_DRY,
3194     EL_AMOEBA_FULL,
3195     EL_BD_AMOEBA,
3196     EL_EMC_MAGIC_BALL,
3197
3198     -1
3199   };
3200
3201   static int ep_can_turn_each_move[] =
3202   {
3203     /* !!! do something with this one !!! */
3204     -1
3205   };
3206
3207   static int ep_can_grow[] =
3208   {
3209     EL_BD_AMOEBA,
3210     EL_AMOEBA_DROP,
3211     EL_AMOEBA_WET,
3212     EL_AMOEBA_DRY,
3213     EL_AMOEBA_FULL,
3214     EL_GAME_OF_LIFE,
3215     EL_BIOMAZE,
3216
3217     -1
3218   };
3219
3220   static int ep_active_bomb[] =
3221   {
3222     EL_DYNAMITE_ACTIVE,
3223     EL_DYNABOMB_PLAYER_1_ACTIVE,
3224     EL_DYNABOMB_PLAYER_2_ACTIVE,
3225     EL_DYNABOMB_PLAYER_3_ACTIVE,
3226     EL_DYNABOMB_PLAYER_4_ACTIVE,
3227     EL_SP_DISK_RED_ACTIVE,
3228
3229     -1
3230   };
3231
3232   static int ep_inactive[] =
3233   {
3234     EL_EMPTY,
3235     EL_SAND,
3236     EL_WALL,
3237     EL_BD_WALL,
3238     EL_WALL_SLIPPERY,
3239     EL_STEELWALL,
3240     EL_AMOEBA_DEAD,
3241     EL_QUICKSAND_EMPTY,
3242     EL_STONEBLOCK,
3243     EL_ROBOT_WHEEL,
3244     EL_KEY_1,
3245     EL_KEY_2,
3246     EL_KEY_3,
3247     EL_KEY_4,
3248     EL_EM_KEY_1,
3249     EL_EM_KEY_2,
3250     EL_EM_KEY_3,
3251     EL_EM_KEY_4,
3252     EL_EMC_KEY_5,
3253     EL_EMC_KEY_6,
3254     EL_EMC_KEY_7,
3255     EL_EMC_KEY_8,
3256     EL_GATE_1,
3257     EL_GATE_2,
3258     EL_GATE_3,
3259     EL_GATE_4,
3260     EL_GATE_1_GRAY,
3261     EL_GATE_2_GRAY,
3262     EL_GATE_3_GRAY,
3263     EL_GATE_4_GRAY,
3264     EL_GATE_1_GRAY_ACTIVE,
3265     EL_GATE_2_GRAY_ACTIVE,
3266     EL_GATE_3_GRAY_ACTIVE,
3267     EL_GATE_4_GRAY_ACTIVE,
3268     EL_EM_GATE_1,
3269     EL_EM_GATE_2,
3270     EL_EM_GATE_3,
3271     EL_EM_GATE_4,
3272     EL_EM_GATE_1_GRAY,
3273     EL_EM_GATE_2_GRAY,
3274     EL_EM_GATE_3_GRAY,
3275     EL_EM_GATE_4_GRAY,
3276     EL_EM_GATE_1_GRAY_ACTIVE,
3277     EL_EM_GATE_2_GRAY_ACTIVE,
3278     EL_EM_GATE_3_GRAY_ACTIVE,
3279     EL_EM_GATE_4_GRAY_ACTIVE,
3280     EL_EMC_GATE_5,
3281     EL_EMC_GATE_6,
3282     EL_EMC_GATE_7,
3283     EL_EMC_GATE_8,
3284     EL_EMC_GATE_5_GRAY,
3285     EL_EMC_GATE_6_GRAY,
3286     EL_EMC_GATE_7_GRAY,
3287     EL_EMC_GATE_8_GRAY,
3288     EL_EMC_GATE_5_GRAY_ACTIVE,
3289     EL_EMC_GATE_6_GRAY_ACTIVE,
3290     EL_EMC_GATE_7_GRAY_ACTIVE,
3291     EL_EMC_GATE_8_GRAY_ACTIVE,
3292     EL_DYNAMITE,
3293     EL_INVISIBLE_STEELWALL,
3294     EL_INVISIBLE_WALL,
3295     EL_INVISIBLE_SAND,
3296     EL_LAMP,
3297     EL_LAMP_ACTIVE,
3298     EL_WALL_EMERALD,
3299     EL_WALL_DIAMOND,
3300     EL_WALL_BD_DIAMOND,
3301     EL_WALL_EMERALD_YELLOW,
3302     EL_DYNABOMB_INCREASE_NUMBER,
3303     EL_DYNABOMB_INCREASE_SIZE,
3304     EL_DYNABOMB_INCREASE_POWER,
3305 #if 0
3306     EL_SOKOBAN_OBJECT,
3307 #endif
3308     EL_SOKOBAN_FIELD_EMPTY,
3309     EL_SOKOBAN_FIELD_FULL,
3310     EL_WALL_EMERALD_RED,
3311     EL_WALL_EMERALD_PURPLE,
3312     EL_ACID_POOL_TOPLEFT,
3313     EL_ACID_POOL_TOPRIGHT,
3314     EL_ACID_POOL_BOTTOMLEFT,
3315     EL_ACID_POOL_BOTTOM,
3316     EL_ACID_POOL_BOTTOMRIGHT,
3317     EL_MAGIC_WALL,
3318     EL_MAGIC_WALL_DEAD,
3319     EL_BD_MAGIC_WALL,
3320     EL_BD_MAGIC_WALL_DEAD,
3321     EL_AMOEBA_TO_DIAMOND,
3322     EL_BLOCKED,
3323     EL_SP_EMPTY,
3324     EL_SP_BASE,
3325     EL_SP_PORT_RIGHT,
3326     EL_SP_PORT_DOWN,
3327     EL_SP_PORT_LEFT,
3328     EL_SP_PORT_UP,
3329     EL_SP_GRAVITY_PORT_RIGHT,
3330     EL_SP_GRAVITY_PORT_DOWN,
3331     EL_SP_GRAVITY_PORT_LEFT,
3332     EL_SP_GRAVITY_PORT_UP,
3333     EL_SP_PORT_HORIZONTAL,
3334     EL_SP_PORT_VERTICAL,
3335     EL_SP_PORT_ANY,
3336     EL_SP_DISK_RED,
3337 #if 0
3338     EL_SP_DISK_YELLOW,
3339 #endif
3340     EL_SP_CHIP_SINGLE,
3341     EL_SP_CHIP_LEFT,
3342     EL_SP_CHIP_RIGHT,
3343     EL_SP_CHIP_TOP,
3344     EL_SP_CHIP_BOTTOM,
3345     EL_SP_HARDWARE_GRAY,
3346     EL_SP_HARDWARE_GREEN,
3347     EL_SP_HARDWARE_BLUE,
3348     EL_SP_HARDWARE_RED,
3349     EL_SP_HARDWARE_YELLOW,
3350     EL_SP_HARDWARE_BASE_1,
3351     EL_SP_HARDWARE_BASE_2,
3352     EL_SP_HARDWARE_BASE_3,
3353     EL_SP_HARDWARE_BASE_4,
3354     EL_SP_HARDWARE_BASE_5,
3355     EL_SP_HARDWARE_BASE_6,
3356     EL_SP_GRAVITY_ON_PORT_LEFT,
3357     EL_SP_GRAVITY_ON_PORT_RIGHT,
3358     EL_SP_GRAVITY_ON_PORT_UP,
3359     EL_SP_GRAVITY_ON_PORT_DOWN,
3360     EL_SP_GRAVITY_OFF_PORT_LEFT,
3361     EL_SP_GRAVITY_OFF_PORT_RIGHT,
3362     EL_SP_GRAVITY_OFF_PORT_UP,
3363     EL_SP_GRAVITY_OFF_PORT_DOWN,
3364     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3365     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3366     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3367     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3368     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3369     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3370     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3371     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3372     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3373     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3374     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3375     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3376     EL_SIGN_EXCLAMATION,
3377     EL_SIGN_RADIOACTIVITY,
3378     EL_SIGN_STOP,
3379     EL_SIGN_WHEELCHAIR,
3380     EL_SIGN_PARKING,
3381     EL_SIGN_ONEWAY,
3382     EL_SIGN_HEART,
3383     EL_SIGN_TRIANGLE,
3384     EL_SIGN_ROUND,
3385     EL_SIGN_EXIT,
3386     EL_SIGN_YINYANG,
3387     EL_SIGN_OTHER,
3388     EL_STEELWALL_SLIPPERY,
3389     EL_EMC_STEELWALL_1,
3390     EL_EMC_STEELWALL_2,
3391     EL_EMC_STEELWALL_3,
3392     EL_EMC_STEELWALL_4,
3393     EL_EMC_WALL_SLIPPERY_1,
3394     EL_EMC_WALL_SLIPPERY_2,
3395     EL_EMC_WALL_SLIPPERY_3,
3396     EL_EMC_WALL_SLIPPERY_4,
3397     EL_EMC_WALL_1,
3398     EL_EMC_WALL_2,
3399     EL_EMC_WALL_3,
3400     EL_EMC_WALL_4,
3401     EL_EMC_WALL_5,
3402     EL_EMC_WALL_6,
3403     EL_EMC_WALL_7,
3404     EL_EMC_WALL_8,
3405     EL_EMC_WALL_9,
3406     EL_EMC_WALL_10,
3407     EL_EMC_WALL_11,
3408     EL_EMC_WALL_12,
3409     EL_EMC_WALL_13,
3410     EL_EMC_WALL_14,
3411     EL_EMC_WALL_15,
3412     EL_EMC_WALL_16,
3413
3414     -1
3415   };
3416
3417   static int ep_em_slippery_wall[] =
3418   {
3419     -1
3420   };
3421
3422   static int ep_gfx_crumbled[] =
3423   {
3424     EL_SAND,
3425     EL_LANDMINE,
3426     EL_TRAP,
3427     EL_TRAP_ACTIVE,
3428
3429     -1
3430   };
3431
3432   static int ep_editor_cascade_active[] =
3433   {
3434     EL_INTERNAL_CASCADE_BD_ACTIVE,
3435     EL_INTERNAL_CASCADE_EM_ACTIVE,
3436     EL_INTERNAL_CASCADE_EMC_ACTIVE,
3437     EL_INTERNAL_CASCADE_RND_ACTIVE,
3438     EL_INTERNAL_CASCADE_SB_ACTIVE,
3439     EL_INTERNAL_CASCADE_SP_ACTIVE,
3440     EL_INTERNAL_CASCADE_DC_ACTIVE,
3441     EL_INTERNAL_CASCADE_DX_ACTIVE,
3442     EL_INTERNAL_CASCADE_CHARS_ACTIVE,
3443     EL_INTERNAL_CASCADE_CE_ACTIVE,
3444     EL_INTERNAL_CASCADE_GE_ACTIVE,
3445     EL_INTERNAL_CASCADE_USER_ACTIVE,
3446     EL_INTERNAL_CASCADE_GENERIC_ACTIVE,
3447     EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
3448
3449     -1
3450   };
3451
3452   static int ep_editor_cascade_inactive[] =
3453   {
3454     EL_INTERNAL_CASCADE_BD,
3455     EL_INTERNAL_CASCADE_EM,
3456     EL_INTERNAL_CASCADE_EMC,
3457     EL_INTERNAL_CASCADE_RND,
3458     EL_INTERNAL_CASCADE_SB,
3459     EL_INTERNAL_CASCADE_SP,
3460     EL_INTERNAL_CASCADE_DC,
3461     EL_INTERNAL_CASCADE_DX,
3462     EL_INTERNAL_CASCADE_CHARS,
3463     EL_INTERNAL_CASCADE_CE,
3464     EL_INTERNAL_CASCADE_GE,
3465     EL_INTERNAL_CASCADE_USER,
3466     EL_INTERNAL_CASCADE_GENERIC,
3467     EL_INTERNAL_CASCADE_DYNAMIC,
3468
3469     -1
3470   };
3471
3472   static struct
3473   {
3474     int *elements;
3475     int property;
3476   } element_properties[] =
3477   {
3478     { ep_diggable,                      EP_DIGGABLE                     },
3479     { ep_collectible_only,              EP_COLLECTIBLE_ONLY             },
3480     { ep_dont_run_into,                 EP_DONT_RUN_INTO                },
3481     { ep_dont_collide_with,             EP_DONT_COLLIDE_WITH            },
3482     { ep_dont_touch,                    EP_DONT_TOUCH                   },
3483     { ep_indestructible,                EP_INDESTRUCTIBLE               },
3484     { ep_slippery,                      EP_SLIPPERY                     },
3485     { ep_can_change,                    EP_CAN_CHANGE                   },
3486     { ep_can_move,                      EP_CAN_MOVE                     },
3487     { ep_can_fall,                      EP_CAN_FALL                     },
3488     { ep_can_smash_player,              EP_CAN_SMASH_PLAYER             },
3489     { ep_can_smash_enemies,             EP_CAN_SMASH_ENEMIES            },
3490     { ep_can_smash_everything,          EP_CAN_SMASH_EVERYTHING         },
3491     { ep_explodes_by_fire,              EP_EXPLODES_BY_FIRE             },
3492     { ep_explodes_smashed,              EP_EXPLODES_SMASHED             },
3493     { ep_explodes_impact,               EP_EXPLODES_IMPACT              },
3494     { ep_walkable_over,                 EP_WALKABLE_OVER                },
3495     { ep_walkable_inside,               EP_WALKABLE_INSIDE              },
3496     { ep_walkable_under,                EP_WALKABLE_UNDER               },
3497     { ep_passable_over,                 EP_PASSABLE_OVER                },
3498     { ep_passable_inside,               EP_PASSABLE_INSIDE              },
3499     { ep_passable_under,                EP_PASSABLE_UNDER               },
3500     { ep_droppable,                     EP_DROPPABLE                    },
3501     { ep_explodes_1x1_old,              EP_EXPLODES_1X1_OLD             },
3502     { ep_pushable,                      EP_PUSHABLE                     },
3503     { ep_explodes_cross_old,            EP_EXPLODES_CROSS_OLD           },
3504     { ep_protected,                     EP_PROTECTED                    },
3505     { ep_throwable,                     EP_THROWABLE                    },
3506     { ep_can_explode,                   EP_CAN_EXPLODE                  },
3507     { ep_gravity_reachable,             EP_GRAVITY_REACHABLE            },
3508
3509     { ep_player,                        EP_PLAYER                       },
3510     { ep_can_pass_magic_wall,           EP_CAN_PASS_MAGIC_WALL          },
3511     { ep_switchable,                    EP_SWITCHABLE                   },
3512     { ep_bd_element,                    EP_BD_ELEMENT                   },
3513     { ep_sp_element,                    EP_SP_ELEMENT                   },
3514     { ep_sb_element,                    EP_SB_ELEMENT                   },
3515     { ep_gem,                           EP_GEM                          },
3516     { ep_food_dark_yamyam,              EP_FOOD_DARK_YAMYAM             },
3517     { ep_food_penguin,                  EP_FOOD_PENGUIN                 },
3518     { ep_food_pig,                      EP_FOOD_PIG                     },
3519     { ep_historic_wall,                 EP_HISTORIC_WALL                },
3520     { ep_historic_solid,                EP_HISTORIC_SOLID               },
3521     { ep_classic_enemy,                 EP_CLASSIC_ENEMY                },
3522     { ep_belt,                          EP_BELT                         },
3523     { ep_belt_active,                   EP_BELT_ACTIVE                  },
3524     { ep_belt_switch,                   EP_BELT_SWITCH                  },
3525     { ep_tube,                          EP_TUBE                         },
3526     { ep_keygate,                       EP_KEYGATE                      },
3527     { ep_amoeboid,                      EP_AMOEBOID                     },
3528     { ep_amoebalive,                    EP_AMOEBALIVE                   },
3529     { ep_has_content,                   EP_HAS_CONTENT                  },
3530     { ep_can_turn_each_move,            EP_CAN_TURN_EACH_MOVE           },
3531     { ep_can_grow,                      EP_CAN_GROW                     },
3532     { ep_active_bomb,                   EP_ACTIVE_BOMB                  },
3533     { ep_inactive,                      EP_INACTIVE                     },
3534
3535     { ep_em_slippery_wall,              EP_EM_SLIPPERY_WALL             },
3536
3537     { ep_gfx_crumbled,                  EP_GFX_CRUMBLED                 },
3538
3539     { ep_editor_cascade_active,         EP_EDITOR_CASCADE_ACTIVE        },
3540     { ep_editor_cascade_inactive,       EP_EDITOR_CASCADE_INACTIVE      },
3541
3542     { NULL,                             -1                              }
3543   };
3544
3545   int i, j, k;
3546
3547   /* always start with reliable default values (element has no properties) */
3548   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3549     for (j = 0; j < NUM_ELEMENT_PROPERTIES; j++)
3550       SET_PROPERTY(i, j, FALSE);
3551
3552   /* set all base element properties from above array definitions */
3553   for (i = 0; element_properties[i].elements != NULL; i++)
3554     for (j = 0; (element_properties[i].elements)[j] != -1; j++)
3555       SET_PROPERTY((element_properties[i].elements)[j],
3556                    element_properties[i].property, TRUE);
3557
3558   /* copy properties to some elements that are only stored in level file */
3559   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
3560     for (j = 0; copy_properties[j][0] != -1; j++)
3561       if (HAS_PROPERTY(copy_properties[j][0], i))
3562         for (k = 1; k <= 4; k++)
3563           SET_PROPERTY(copy_properties[j][k], i, TRUE);
3564 }
3565
3566 void InitElementPropertiesEngine(int engine_version)
3567 {
3568   static int no_wall_properties[] =
3569   {
3570     EP_DIGGABLE,
3571     EP_COLLECTIBLE_ONLY,
3572     EP_DONT_RUN_INTO,
3573     EP_DONT_COLLIDE_WITH,
3574     EP_CAN_MOVE,
3575     EP_CAN_FALL,
3576     EP_CAN_SMASH_PLAYER,
3577     EP_CAN_SMASH_ENEMIES,
3578     EP_CAN_SMASH_EVERYTHING,
3579     EP_PUSHABLE,
3580
3581     EP_PLAYER,
3582     EP_GEM,
3583     EP_FOOD_DARK_YAMYAM,
3584     EP_FOOD_PENGUIN,
3585     EP_BELT,
3586     EP_BELT_ACTIVE,
3587     EP_TUBE,
3588     EP_AMOEBOID,
3589     EP_AMOEBALIVE,
3590     EP_ACTIVE_BOMB,
3591
3592     EP_ACCESSIBLE,
3593
3594     -1
3595   };
3596
3597   int i, j;
3598
3599   /* important: after initialization in InitElementPropertiesStatic(), the
3600      elements are not again initialized to a default value; therefore all
3601      changes have to make sure that they leave the element with a defined
3602      property (which means that conditional property changes must be set to
3603      a reliable default value before) */
3604
3605   /* set all special, combined or engine dependent element properties */
3606   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3607   {
3608     /* ---------- INACTIVE ------------------------------------------------- */
3609     SET_PROPERTY(i, EP_INACTIVE, (i >= EL_CHAR_START && i <= EL_CHAR_END));
3610
3611     /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
3612     SET_PROPERTY(i, EP_WALKABLE, (IS_WALKABLE_OVER(i) ||
3613                                   IS_WALKABLE_INSIDE(i) ||
3614                                   IS_WALKABLE_UNDER(i)));
3615
3616     SET_PROPERTY(i, EP_PASSABLE, (IS_PASSABLE_OVER(i) ||
3617                                   IS_PASSABLE_INSIDE(i) ||
3618                                   IS_PASSABLE_UNDER(i)));
3619
3620     SET_PROPERTY(i, EP_ACCESSIBLE_OVER, (IS_WALKABLE_OVER(i) ||
3621                                          IS_PASSABLE_OVER(i)));
3622
3623     SET_PROPERTY(i, EP_ACCESSIBLE_INSIDE, (IS_WALKABLE_INSIDE(i) ||
3624                                            IS_PASSABLE_INSIDE(i)));
3625
3626     SET_PROPERTY(i, EP_ACCESSIBLE_UNDER, (IS_WALKABLE_UNDER(i) ||
3627                                           IS_PASSABLE_UNDER(i)));
3628
3629     SET_PROPERTY(i, EP_ACCESSIBLE, (IS_WALKABLE(i) ||
3630                                     IS_PASSABLE(i)));
3631
3632     /* ---------- COLLECTIBLE ---------------------------------------------- */
3633     SET_PROPERTY(i, EP_COLLECTIBLE, (IS_COLLECTIBLE_ONLY(i) ||
3634                                      IS_DROPPABLE(i) ||
3635                                      IS_THROWABLE(i)));
3636
3637     /* ---------- SNAPPABLE ------------------------------------------------ */
3638     SET_PROPERTY(i, EP_SNAPPABLE, (IS_DIGGABLE(i) ||
3639                                    IS_COLLECTIBLE(i) ||
3640                                    IS_SWITCHABLE(i) ||
3641                                    i == EL_BD_ROCK));
3642
3643     /* ---------- WALL ----------------------------------------------------- */
3644     SET_PROPERTY(i, EP_WALL, TRUE);     /* default: element is wall */
3645
3646     for (j = 0; no_wall_properties[j] != -1; j++)
3647       if (HAS_PROPERTY(i, no_wall_properties[j]) ||
3648           i >= EL_FIRST_RUNTIME_UNREAL)
3649         SET_PROPERTY(i, EP_WALL, FALSE);
3650
3651     if (IS_HISTORIC_WALL(i))
3652       SET_PROPERTY(i, EP_WALL, TRUE);
3653
3654     /* ---------- SOLID_FOR_PUSHING ---------------------------------------- */
3655     if (engine_version < VERSION_IDENT(2,2,0,0))
3656       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, IS_HISTORIC_SOLID(i));
3657     else
3658       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, (!IS_WALKABLE(i) &&
3659                                              !IS_DIGGABLE(i) &&
3660                                              !IS_COLLECTIBLE(i)));
3661
3662     /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
3663
3664     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
3665       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
3666     else
3667       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, (IS_CUSTOM_ELEMENT(i) &&
3668                                             IS_INDESTRUCTIBLE(i)));
3669
3670     /* ---------- EXPLOSION_PROOF ------------------------------------------ */
3671     if (i == EL_FLAMES)
3672       SET_PROPERTY(i, EP_EXPLOSION_PROOF, TRUE);
3673     else if (engine_version < VERSION_IDENT(2,2,0,0))
3674       SET_PROPERTY(i, EP_EXPLOSION_PROOF, IS_INDESTRUCTIBLE(i));
3675     else
3676       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3677                                            (!IS_WALKABLE(i) ||
3678                                             IS_PROTECTED(i))));
3679
3680     if (IS_CUSTOM_ELEMENT(i))
3681     {
3682       /* these are additional properties which are initially false when set */
3683
3684       /* ---------- DONT_COLLIDE_WITH / DONT_RUN_INTO ---------------------- */
3685       if (DONT_TOUCH(i))
3686         SET_PROPERTY(i, EP_DONT_COLLIDE_WITH, TRUE);
3687       if (DONT_COLLIDE_WITH(i))
3688         SET_PROPERTY(i, EP_DONT_RUN_INTO, TRUE);
3689
3690       /* ---------- CAN_SMASH_ENEMIES / CAN_SMASH_PLAYER ------------------- */
3691       if (CAN_SMASH_EVERYTHING(i))
3692         SET_PROPERTY(i, EP_CAN_SMASH_ENEMIES, TRUE);
3693       if (CAN_SMASH_ENEMIES(i))
3694         SET_PROPERTY(i, EP_CAN_SMASH_PLAYER, TRUE);
3695     }
3696
3697     /* ---------- CAN_SMASH ------------------------------------------------ */
3698     SET_PROPERTY(i, EP_CAN_SMASH, (CAN_SMASH_PLAYER(i) ||
3699                                    CAN_SMASH_ENEMIES(i) ||
3700                                    CAN_SMASH_EVERYTHING(i)));
3701
3702     /* ---------- CAN_EXPLODE_BY_FIRE -------------------------------------- */
3703     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_FIRE, (CAN_EXPLODE(i) &&
3704                                              EXPLODES_BY_FIRE(i)));
3705
3706     /* ---------- CAN_EXPLODE_SMASHED -------------------------------------- */
3707     SET_PROPERTY(i, EP_CAN_EXPLODE_SMASHED, (CAN_EXPLODE(i) &&
3708                                              EXPLODES_SMASHED(i)));
3709
3710     /* ---------- CAN_EXPLODE_IMPACT --------------------------------------- */
3711     SET_PROPERTY(i, EP_CAN_EXPLODE_IMPACT, (CAN_EXPLODE(i) &&
3712                                             EXPLODES_IMPACT(i)));
3713
3714     /* ---------- CAN_EXPLODE_BY_DRAGONFIRE -------------------------------- */
3715     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_DRAGONFIRE, CAN_EXPLODE_BY_FIRE(i));
3716
3717     /* ---------- CAN_EXPLODE_BY_EXPLOSION --------------------------------- */
3718     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_EXPLOSION, (CAN_EXPLODE_BY_FIRE(i) ||
3719                                                   i == EL_BLACK_ORB));
3720
3721     /* ---------- COULD_MOVE_INTO_ACID ------------------------------------- */
3722     SET_PROPERTY(i, EP_COULD_MOVE_INTO_ACID, (ELEM_IS_PLAYER(i) ||
3723                                               CAN_MOVE(i) ||
3724                                               IS_CUSTOM_ELEMENT(i)));
3725
3726     /* ---------- MAYBE_DONT_COLLIDE_WITH ---------------------------------- */
3727     SET_PROPERTY(i, EP_MAYBE_DONT_COLLIDE_WITH, (i == EL_SP_SNIKSNAK ||
3728                                                  i == EL_SP_ELECTRON));
3729
3730     /* ---------- CAN_MOVE_INTO_ACID --------------------------------------- */
3731     if (COULD_MOVE_INTO_ACID(i) && !IS_CUSTOM_ELEMENT(i))
3732       SET_PROPERTY(i, EP_CAN_MOVE_INTO_ACID,
3733                    getMoveIntoAcidProperty(&level, i));
3734
3735     /* ---------- DONT_COLLIDE_WITH ---------------------------------------- */
3736     if (MAYBE_DONT_COLLIDE_WITH(i))
3737       SET_PROPERTY(i, EP_DONT_COLLIDE_WITH,
3738                    getDontCollideWithProperty(&level, i));
3739
3740     /* ---------- SP_PORT -------------------------------------------------- */
3741     SET_PROPERTY(i, EP_SP_PORT, (IS_SP_ELEMENT(i) &&
3742                                  IS_PASSABLE_INSIDE(i)));
3743
3744     /* ---------- CAN_CHANGE ----------------------------------------------- */
3745     SET_PROPERTY(i, EP_CAN_CHANGE, FALSE);      /* default: cannot change */
3746     for (j = 0; j < element_info[i].num_change_pages; j++)
3747       if (element_info[i].change_page[j].can_change)
3748         SET_PROPERTY(i, EP_CAN_CHANGE, TRUE);
3749
3750     /* ---------- HAS_ACTION ----------------------------------------------- */
3751     SET_PROPERTY(i, EP_HAS_ACTION, FALSE);      /* default: has no action */
3752     for (j = 0; j < element_info[i].num_change_pages; j++)
3753       if (element_info[i].change_page[j].has_action)
3754         SET_PROPERTY(i, EP_HAS_ACTION, TRUE);
3755
3756     /* ---------- CAN_CHANGE_OR_HAS_ACTION --------------------------------- */
3757     SET_PROPERTY(i, EP_CAN_CHANGE_OR_HAS_ACTION, (CAN_CHANGE(i) ||
3758                                                   HAS_ACTION(i)));
3759
3760     /* ---------- GFX_CRUMBLED --------------------------------------------- */
3761 #if 1
3762     SET_PROPERTY(i, EP_GFX_CRUMBLED,
3763                  element_info[i].crumbled[ACTION_DEFAULT] !=
3764                  element_info[i].graphic[ACTION_DEFAULT]);
3765 #else
3766     /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
3767     SET_PROPERTY(i, EP_GFX_CRUMBLED,
3768                  element_info[i].crumbled[ACTION_DEFAULT] != IMG_EMPTY);
3769 #endif
3770
3771     /* ---------- EDITOR_CASCADE ------------------------------------------- */
3772     SET_PROPERTY(i, EP_EDITOR_CASCADE, (IS_EDITOR_CASCADE_ACTIVE(i) ||
3773                                         IS_EDITOR_CASCADE_INACTIVE(i)));
3774   }
3775
3776   /* dynamically adjust element properties according to game engine version */
3777   {
3778     static int ep_em_slippery_wall[] =
3779     {
3780       EL_STEELWALL,
3781       EL_WALL,
3782       EL_EXPANDABLE_WALL,
3783       EL_EXPANDABLE_WALL_HORIZONTAL,
3784       EL_EXPANDABLE_WALL_VERTICAL,
3785       EL_EXPANDABLE_WALL_ANY,
3786       -1
3787     };
3788
3789     /* special EM style gems behaviour */
3790     for (i = 0; ep_em_slippery_wall[i] != -1; i++)
3791       SET_PROPERTY(ep_em_slippery_wall[i], EP_EM_SLIPPERY_WALL,
3792                    level.em_slippery_gems);
3793
3794     /* "EL_EXPANDABLE_WALL_GROWING" wasn't slippery for EM gems in 2.0.1 */
3795     SET_PROPERTY(EL_EXPANDABLE_WALL_GROWING, EP_EM_SLIPPERY_WALL,
3796                  (level.em_slippery_gems &&
3797                   engine_version > VERSION_IDENT(2,0,1,0)));
3798   }
3799
3800   /* set default push delay values (corrected since version 3.0.7-1) */
3801   if (engine_version < VERSION_IDENT(3,0,7,1))
3802   {
3803     game.default_push_delay_fixed = 2;
3804     game.default_push_delay_random = 8;
3805   }
3806   else
3807   {
3808     game.default_push_delay_fixed = 8;
3809     game.default_push_delay_random = 8;
3810   }
3811
3812   /* set uninitialized push delay values of custom elements in older levels */
3813   for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
3814   {
3815     int element = EL_CUSTOM_START + i;
3816
3817     if (element_info[element].push_delay_fixed == -1)
3818       element_info[element].push_delay_fixed = game.default_push_delay_fixed;
3819     if (element_info[element].push_delay_random == -1)
3820       element_info[element].push_delay_random = game.default_push_delay_random;
3821   }
3822
3823   /* set some other uninitialized values of custom elements in older levels */
3824   if (engine_version < VERSION_IDENT(3,1,0,0))
3825   {
3826     for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
3827     {
3828       int element = EL_CUSTOM_START + i;
3829
3830       element_info[element].access_direction = MV_ALL_DIRECTIONS;
3831
3832       element_info[element].explosion_delay = 17;
3833       element_info[element].ignition_delay = 8;
3834     }
3835   }
3836
3837 #if 0
3838   /* set element properties that were handled incorrectly in older levels */
3839   if (engine_version < VERSION_IDENT(3,1,0,0))
3840   {
3841     SET_PROPERTY(EL_SP_SNIKSNAK, EP_DONT_COLLIDE_WITH, FALSE);
3842     SET_PROPERTY(EL_SP_ELECTRON, EP_DONT_COLLIDE_WITH, FALSE);
3843   }
3844 #endif
3845
3846   /* this is needed because some graphics depend on element properties */
3847   if (game_status == GAME_MODE_PLAYING)
3848     InitElementGraphicInfo();
3849 }
3850
3851 static void InitGlobal()
3852 {
3853   int i;
3854
3855   for (i = 0; i < MAX_NUM_ELEMENTS + 1; i++)
3856   {
3857     /* check if element_name_info entry defined for each element in "main.h" */
3858     if (i < MAX_NUM_ELEMENTS && element_name_info[i].token_name == NULL)
3859       Error(ERR_EXIT, "undefined 'element_name_info' entry for element %d", i);
3860
3861     element_info[i].token_name = element_name_info[i].token_name;
3862     element_info[i].class_name = element_name_info[i].class_name;
3863     element_info[i].editor_description=element_name_info[i].editor_description;
3864   }
3865
3866   global.autoplay_leveldir = NULL;
3867   global.convert_leveldir = NULL;
3868
3869   global.frames_per_second = 0;
3870   global.fps_slowdown = FALSE;
3871   global.fps_slowdown_factor = 1;
3872 }
3873
3874 void Execute_Command(char *command)
3875 {
3876   int i;
3877
3878   if (strcmp(command, "print graphicsinfo.conf") == 0)
3879   {
3880     printf("# You can configure additional/alternative image files here.\n");
3881     printf("# (The entries below are default and therefore commented out.)\n");
3882     printf("\n");
3883     printf("%s\n", getFormattedSetupEntry("name", "Classic Graphics"));
3884     printf("\n");
3885     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3886     printf("\n");
3887
3888     for (i = 0; image_config[i].token != NULL; i++)
3889       printf("# %s\n", getFormattedSetupEntry(image_config[i].token,
3890                                               image_config[i].value));
3891
3892     exit(0);
3893   }
3894   else if (strcmp(command, "print soundsinfo.conf") == 0)
3895   {
3896     printf("# You can configure additional/alternative sound files here.\n");
3897     printf("# (The entries below are default and therefore commented out.)\n");
3898     printf("\n");
3899     printf("%s\n", getFormattedSetupEntry("name", "Classic Sounds"));
3900     printf("\n");
3901     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3902     printf("\n");
3903
3904     for (i = 0; sound_config[i].token != NULL; i++)
3905       printf("# %s\n", getFormattedSetupEntry(sound_config[i].token,
3906                                               sound_config[i].value));
3907
3908     exit(0);
3909   }
3910   else if (strcmp(command, "print musicinfo.conf") == 0)
3911   {
3912     printf("# You can configure additional/alternative music files here.\n");
3913     printf("# (The entries below are default and therefore commented out.)\n");
3914     printf("\n");
3915     printf("%s\n", getFormattedSetupEntry("name", "Classic Music"));
3916     printf("\n");
3917     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3918     printf("\n");
3919
3920     for (i = 0; music_config[i].token != NULL; i++)
3921       printf("# %s\n", getFormattedSetupEntry(music_config[i].token,
3922                                               music_config[i].value));
3923
3924     exit(0);
3925   }
3926   else if (strcmp(command, "print editorsetup.conf") == 0)
3927   {
3928     printf("# You can configure your personal editor element list here.\n");
3929     printf("# (The entries below are default and therefore commented out.)\n");
3930     printf("\n");
3931
3932     /* this is needed to be able to check element list for cascade elements */
3933     InitElementPropertiesStatic();
3934     InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
3935
3936     PrintEditorElementList();
3937
3938     exit(0);
3939   }
3940   else if (strcmp(command, "print helpanim.conf") == 0)
3941   {
3942     printf("# You can configure different element help animations here.\n");
3943     printf("# (The entries below are default and therefore commented out.)\n");
3944     printf("\n");
3945
3946     for (i = 0; helpanim_config[i].token != NULL; i++)
3947     {
3948       printf("# %s\n", getFormattedSetupEntry(helpanim_config[i].token,
3949                                               helpanim_config[i].value));
3950
3951       if (strcmp(helpanim_config[i].token, "end") == 0)
3952         printf("#\n");
3953     }
3954
3955     exit(0);
3956   }
3957   else if (strcmp(command, "print helptext.conf") == 0)
3958   {
3959     printf("# You can configure different element help text here.\n");
3960     printf("# (The entries below are default and therefore commented out.)\n");
3961     printf("\n");
3962
3963     for (i = 0; helptext_config[i].token != NULL; i++)
3964       printf("# %s\n", getFormattedSetupEntry(helptext_config[i].token,
3965                                               helptext_config[i].value));
3966
3967     exit(0);
3968   }
3969   else if (strncmp(command, "dump level ", 11) == 0)
3970   {
3971     char *filename = &command[11];
3972
3973     if (!fileExists(filename))
3974       Error(ERR_EXIT, "cannot open file '%s'", filename);
3975
3976     LoadLevelFromFilename(&level, filename);
3977     DumpLevel(&level);
3978
3979     exit(0);
3980   }
3981   else if (strncmp(command, "dump tape ", 10) == 0)
3982   {
3983     char *filename = &command[10];
3984
3985     if (!fileExists(filename))
3986       Error(ERR_EXIT, "cannot open file '%s'", filename);
3987
3988     LoadTapeFromFilename(filename);
3989     DumpTape(&tape);
3990
3991     exit(0);
3992   }
3993   else if (strncmp(command, "autoplay ", 9) == 0)
3994   {
3995     char *str_ptr = getStringCopy(&command[9]); /* read command parameters */
3996
3997     while (*str_ptr != '\0')                    /* continue parsing string */
3998     {
3999       /* cut leading whitespace from string, replace it by string terminator */
4000       while (*str_ptr == ' ' || *str_ptr == '\t')
4001         *str_ptr++ = '\0';
4002
4003       if (*str_ptr == '\0')                     /* end of string reached */
4004         break;
4005
4006       if (global.autoplay_leveldir == NULL)     /* read level set string */
4007       {
4008         global.autoplay_leveldir = str_ptr;
4009         global.autoplay_all = TRUE;             /* default: play all tapes */
4010
4011         for (i = 0; i < MAX_TAPES_PER_SET; i++)
4012           global.autoplay_level[i] = FALSE;
4013       }
4014       else                                      /* read level number string */
4015       {
4016         int level_nr = atoi(str_ptr);           /* get level_nr value */
4017
4018         if (level_nr >= 0 && level_nr < MAX_TAPES_PER_SET)
4019           global.autoplay_level[level_nr] = TRUE;
4020
4021         global.autoplay_all = FALSE;
4022       }
4023
4024       /* advance string pointer to the next whitespace (or end of string) */
4025       while (*str_ptr != ' ' && *str_ptr != '\t' && *str_ptr != '\0')
4026         str_ptr++;
4027     }
4028   }
4029   else if (strncmp(command, "convert ", 8) == 0)
4030   {
4031     char *str_copy = getStringCopy(&command[8]);
4032     char *str_ptr = strchr(str_copy, ' ');
4033
4034     global.convert_leveldir = str_copy;
4035     global.convert_level_nr = -1;
4036
4037     if (str_ptr != NULL)                        /* level number follows */
4038     {
4039       *str_ptr++ = '\0';                        /* terminate leveldir string */
4040       global.convert_level_nr = atoi(str_ptr);  /* get level_nr value */
4041     }
4042   }
4043   else
4044   {
4045     Error(ERR_EXIT_HELP, "unrecognized command '%s'", command);
4046   }
4047 }
4048
4049 static void InitSetup()
4050 {
4051   LoadSetup();                                  /* global setup info */
4052
4053   /* set some options from setup file */
4054
4055   if (setup.options.verbose)
4056     options.verbose = TRUE;
4057 }
4058
4059 static void InitGameInfo()
4060 {
4061   game.restart_level = FALSE;
4062 }
4063
4064 static void InitPlayerInfo()
4065 {
4066   int i;
4067
4068   /* choose default local player */
4069   local_player = &stored_player[0];
4070
4071   for (i = 0; i < MAX_PLAYERS; i++)
4072     stored_player[i].connected = FALSE;
4073
4074   local_player->connected = TRUE;
4075 }
4076
4077 static void InitArtworkInfo()
4078 {
4079   LoadArtworkInfo();
4080 }
4081
4082 static char *get_string_in_brackets(char *string)
4083 {
4084   char *string_in_brackets = checked_malloc(strlen(string) + 3);
4085
4086   sprintf(string_in_brackets, "[%s]", string);
4087
4088   return string_in_brackets;
4089 }
4090
4091 static char *get_level_id_suffix(int id_nr)
4092 {
4093   char *id_suffix = checked_malloc(1 + 3 + 1);
4094
4095   if (id_nr < 0 || id_nr > 999)
4096     id_nr = 0;
4097
4098   sprintf(id_suffix, ".%03d", id_nr);
4099
4100   return id_suffix;
4101 }
4102
4103 #if 0
4104 static char *get_element_class_token(int element)
4105 {
4106   char *element_class_name = element_info[element].class_name;
4107   char *element_class_token = checked_malloc(strlen(element_class_name) + 3);
4108
4109   sprintf(element_class_token, "[%s]", element_class_name);
4110
4111   return element_class_token;
4112 }
4113
4114 static char *get_action_class_token(int action)
4115 {
4116   char *action_class_name = &element_action_info[action].suffix[1];
4117   char *action_class_token = checked_malloc(strlen(action_class_name) + 3);
4118
4119   sprintf(action_class_token, "[%s]", action_class_name);
4120
4121   return action_class_token;
4122 }
4123 #endif
4124
4125 static void InitArtworkConfig()
4126 {
4127   static char *image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS + 1];
4128   static char *sound_id_prefix[2 * MAX_NUM_ELEMENTS + 1];
4129   static char *music_id_prefix[NUM_MUSIC_PREFIXES + 1];
4130   static char *action_id_suffix[NUM_ACTIONS + 1];
4131   static char *direction_id_suffix[NUM_DIRECTIONS + 1];
4132   static char *special_id_suffix[NUM_SPECIAL_GFX_ARGS + 1];
4133   static char *level_id_suffix[MAX_LEVELS + 1];
4134   static char *dummy[1] = { NULL };
4135   static char *ignore_generic_tokens[] =
4136   {
4137     "name",
4138     "sort_priority",
4139     NULL
4140   };
4141   static char **ignore_image_tokens;
4142   static char **ignore_sound_tokens;
4143   static char **ignore_music_tokens;
4144   int num_ignore_generic_tokens;
4145   int num_ignore_image_tokens;
4146   int num_ignore_sound_tokens;
4147   int num_ignore_music_tokens;
4148   int i;
4149
4150   /* dynamically determine list of generic tokens to be ignored */
4151   num_ignore_generic_tokens = 0;
4152   for (i = 0; ignore_generic_tokens[i] != NULL; i++)
4153     num_ignore_generic_tokens++;
4154
4155   /* dynamically determine list of image tokens to be ignored */
4156   num_ignore_image_tokens = num_ignore_generic_tokens;
4157   for (i = 0; image_config_vars[i].token != NULL; i++)
4158     num_ignore_image_tokens++;
4159   ignore_image_tokens =
4160     checked_malloc((num_ignore_image_tokens + 1) * sizeof(char *));
4161   for (i = 0; i < num_ignore_generic_tokens; i++)
4162     ignore_image_tokens[i] = ignore_generic_tokens[i];
4163   for (i = 0; i < num_ignore_image_tokens - num_ignore_generic_tokens; i++)
4164     ignore_image_tokens[num_ignore_generic_tokens + i] =
4165       image_config_vars[i].token;
4166   ignore_image_tokens[num_ignore_image_tokens] = NULL;
4167
4168   /* dynamically determine list of sound tokens to be ignored */
4169   num_ignore_sound_tokens = num_ignore_generic_tokens;
4170   ignore_sound_tokens =
4171     checked_malloc((num_ignore_sound_tokens + 1) * sizeof(char *));
4172   for (i = 0; i < num_ignore_generic_tokens; i++)
4173     ignore_sound_tokens[i] = ignore_generic_tokens[i];
4174   ignore_sound_tokens[num_ignore_sound_tokens] = NULL;
4175
4176   /* dynamically determine list of music tokens to be ignored */
4177   num_ignore_music_tokens = num_ignore_generic_tokens;
4178   ignore_music_tokens =
4179     checked_malloc((num_ignore_music_tokens + 1) * sizeof(char *));
4180   for (i = 0; i < num_ignore_generic_tokens; i++)
4181     ignore_music_tokens[i] = ignore_generic_tokens[i];
4182   ignore_music_tokens[num_ignore_music_tokens] = NULL;
4183
4184   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
4185     image_id_prefix[i] = element_info[i].token_name;
4186   for (i = 0; i < NUM_FONTS; i++)
4187     image_id_prefix[MAX_NUM_ELEMENTS + i] = font_info[i].token_name;
4188   image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS] = NULL;
4189
4190   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
4191     sound_id_prefix[i] = element_info[i].token_name;
4192   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
4193     sound_id_prefix[MAX_NUM_ELEMENTS + i] =
4194       get_string_in_brackets(element_info[i].class_name);
4195   sound_id_prefix[2 * MAX_NUM_ELEMENTS] = NULL;
4196
4197   for (i = 0; i < NUM_MUSIC_PREFIXES; i++)
4198     music_id_prefix[i] = music_prefix_info[i].prefix;
4199   music_id_prefix[NUM_MUSIC_PREFIXES] = NULL;
4200
4201   for (i = 0; i < NUM_ACTIONS; i++)
4202     action_id_suffix[i] = element_action_info[i].suffix;
4203   action_id_suffix[NUM_ACTIONS] = NULL;
4204
4205   for (i = 0; i < NUM_DIRECTIONS; i++)
4206     direction_id_suffix[i] = element_direction_info[i].suffix;
4207   direction_id_suffix[NUM_DIRECTIONS] = NULL;
4208
4209   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
4210     special_id_suffix[i] = special_suffix_info[i].suffix;
4211   special_id_suffix[NUM_SPECIAL_GFX_ARGS] = NULL;
4212
4213   for (i = 0; i < MAX_LEVELS; i++)
4214     level_id_suffix[i] = get_level_id_suffix(i);
4215   level_id_suffix[MAX_LEVELS] = NULL;
4216
4217   InitImageList(image_config, NUM_IMAGE_FILES, image_config_suffix,
4218                 image_id_prefix, action_id_suffix, direction_id_suffix,
4219                 special_id_suffix, ignore_image_tokens);
4220   InitSoundList(sound_config, NUM_SOUND_FILES, sound_config_suffix,
4221                 sound_id_prefix, action_id_suffix, dummy,
4222                 special_id_suffix, ignore_sound_tokens);
4223   InitMusicList(music_config, NUM_MUSIC_FILES, music_config_suffix,
4224                 music_id_prefix, special_id_suffix, level_id_suffix,
4225                 dummy, ignore_music_tokens);
4226 }
4227
4228 static void InitMixer()
4229 {
4230   OpenAudio();
4231   StartMixer();
4232 }
4233
4234 void InitGfx()
4235 {
4236   char *filename_font_initial = NULL;
4237   Bitmap *bitmap_font_initial = NULL;
4238   int i, j;
4239
4240   /* determine settings for initial font (for displaying startup messages) */
4241   for (i = 0; image_config[i].token != NULL; i++)
4242   {
4243     for (j = 0; j < NUM_INITIAL_FONTS; j++)
4244     {
4245       char font_token[128];
4246       int len_font_token;
4247
4248       sprintf(font_token, "%s_%d", CONFIG_TOKEN_FONT_INITIAL, j + 1);
4249       len_font_token = strlen(font_token);
4250
4251       if (strcmp(image_config[i].token, font_token) == 0)
4252         filename_font_initial = image_config[i].value;
4253       else if (strlen(image_config[i].token) > len_font_token &&
4254                strncmp(image_config[i].token, font_token, len_font_token) == 0)
4255       {
4256         if (strcmp(&image_config[i].token[len_font_token], ".x") == 0)
4257           font_initial[j].src_x = atoi(image_config[i].value);
4258         else if (strcmp(&image_config[i].token[len_font_token], ".y") == 0)
4259           font_initial[j].src_y = atoi(image_config[i].value);
4260         else if (strcmp(&image_config[i].token[len_font_token], ".width") == 0)
4261           font_initial[j].width = atoi(image_config[i].value);
4262         else if (strcmp(&image_config[i].token[len_font_token],".height") == 0)
4263           font_initial[j].height = atoi(image_config[i].value);
4264       }
4265     }
4266   }
4267
4268   for (j = 0; j < NUM_INITIAL_FONTS; j++)
4269   {
4270     font_initial[j].num_chars = DEFAULT_NUM_CHARS_PER_FONT;
4271     font_initial[j].num_chars_per_line = DEFAULT_NUM_CHARS_PER_LINE;
4272   }
4273
4274   if (filename_font_initial == NULL)    /* should not happen */
4275     Error(ERR_EXIT, "cannot get filename for '%s'", CONFIG_TOKEN_FONT_INITIAL);
4276
4277   /* create additional image buffers for double-buffering */
4278   bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
4279   bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
4280
4281   /* initialize screen properties */
4282   InitGfxFieldInfo(SX, SY, SXSIZE, SYSIZE,
4283                    REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE,
4284                    bitmap_db_field);
4285   InitGfxDoor1Info(DX, DY, DXSIZE, DYSIZE);
4286   InitGfxDoor2Info(VX, VY, VXSIZE, VYSIZE);
4287   InitGfxScrollbufferInfo(FXSIZE, FYSIZE);
4288
4289   bitmap_font_initial = LoadCustomImage(filename_font_initial);
4290
4291   for (j = 0; j < NUM_INITIAL_FONTS; j++)
4292     font_initial[j].bitmap = bitmap_font_initial;
4293
4294   InitFontGraphicInfo();
4295
4296   DrawInitText(getProgramInitString(), 20, FC_YELLOW);
4297   DrawInitText(PROGRAM_COPYRIGHT_STRING, 50, FC_RED);
4298
4299   DrawInitText("Loading graphics:", 120, FC_GREEN);
4300 }
4301
4302 void InitGfxBackground()
4303 {
4304   int x, y;
4305
4306   drawto = backbuffer;
4307   fieldbuffer = bitmap_db_field;
4308   SetDrawtoField(DRAW_BACKBUFFER);
4309
4310   BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, backbuffer,
4311              0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
4312   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
4313   ClearRectangle(bitmap_db_door, 0, 0, 3 * DXSIZE, DYSIZE + VYSIZE);
4314
4315   for (x = 0; x < MAX_BUF_XSIZE; x++)
4316     for (y = 0; y < MAX_BUF_YSIZE; y++)
4317       redraw[x][y] = 0;
4318   redraw_tiles = 0;
4319   redraw_mask = REDRAW_ALL;
4320 }
4321
4322 static void InitLevelInfo()
4323 {
4324   LoadLevelInfo();                              /* global level info */
4325   LoadLevelSetup_LastSeries();                  /* last played series info */
4326   LoadLevelSetup_SeriesInfo();                  /* last played level info */
4327 }
4328
4329 void InitLevelArtworkInfo()
4330 {
4331   LoadLevelArtworkInfo();
4332 }
4333
4334 static void InitImages()
4335 {
4336   setLevelArtworkDir(artwork.gfx_first);
4337
4338 #if 0
4339   printf("::: InitImages for '%s' ['%s', '%s'] ['%s', '%s']\n",
4340          leveldir_current->identifier,
4341          artwork.gfx_current_identifier,
4342          artwork.gfx_current->identifier,
4343          leveldir_current->graphics_set,
4344          leveldir_current->graphics_path);
4345 #endif
4346
4347   ReloadCustomImages();
4348
4349   LoadCustomElementDescriptions();
4350   LoadSpecialMenuDesignSettings();
4351
4352   ReinitializeGraphics();
4353 }
4354
4355 static void InitSound(char *identifier)
4356 {
4357   if (identifier == NULL)
4358     identifier = artwork.snd_current->identifier;
4359
4360   /* set artwork path to send it to the sound server process */
4361   setLevelArtworkDir(artwork.snd_first);
4362
4363   InitReloadCustomSounds(identifier);
4364   ReinitializeSounds();
4365 }
4366
4367 static void InitMusic(char *identifier)
4368 {
4369   if (identifier == NULL)
4370     identifier = artwork.mus_current->identifier;
4371
4372   /* set artwork path to send it to the sound server process */
4373   setLevelArtworkDir(artwork.mus_first);
4374
4375   InitReloadCustomMusic(identifier);
4376   ReinitializeMusic();
4377 }
4378
4379 void InitNetworkServer()
4380 {
4381 #if defined(NETWORK_AVALIABLE)
4382   int nr_wanted;
4383 #endif
4384
4385   if (!options.network)
4386     return;
4387
4388 #if defined(NETWORK_AVALIABLE)
4389   nr_wanted = Request("Choose player", REQ_PLAYER | REQ_STAY_CLOSED);
4390
4391   if (!ConnectToServer(options.server_host, options.server_port))
4392     Error(ERR_EXIT, "cannot connect to network game server");
4393
4394   SendToServer_PlayerName(setup.player_name);
4395   SendToServer_ProtocolVersion();
4396
4397   if (nr_wanted)
4398     SendToServer_NrWanted(nr_wanted);
4399 #endif
4400 }
4401
4402 static char *getNewArtworkIdentifier(int type)
4403 {
4404   static char *leveldir_current_identifier[3] = { NULL, NULL, NULL };
4405   static boolean last_override_level_artwork[3] = { FALSE, FALSE, FALSE };
4406   static boolean last_has_level_artwork_set[3] = { FALSE, FALSE, FALSE };
4407   static boolean initialized[3] = { FALSE, FALSE, FALSE };
4408   TreeInfo *artwork_first_node = ARTWORK_FIRST_NODE(artwork, type);
4409   boolean setup_override_artwork = SETUP_OVERRIDE_ARTWORK(setup, type);
4410   char *setup_artwork_set = SETUP_ARTWORK_SET(setup, type);
4411   char *leveldir_identifier = leveldir_current->identifier;
4412 #if 1
4413   /* !!! setLevelArtworkDir() should be moved to an earlier stage !!! */
4414   char *leveldir_artwork_set = setLevelArtworkDir(artwork_first_node);
4415 #else
4416   char *leveldir_artwork_set = LEVELDIR_ARTWORK_SET(leveldir_current, type);
4417 #endif
4418   boolean has_level_artwork_set = (leveldir_artwork_set != NULL);
4419   char *artwork_current_identifier;
4420   char *artwork_new_identifier = NULL;  /* default: nothing has changed */
4421
4422   /* leveldir_current may be invalid (level group, parent link) */
4423   if (!validLevelSeries(leveldir_current))
4424     return NULL;
4425
4426   /* 1st step: determine artwork set to be activated in descending order:
4427      --------------------------------------------------------------------
4428      1. setup artwork (when configured to override everything else)
4429      2. artwork set configured in "levelinfo.conf" of current level set
4430         (artwork in level directory will have priority when loading later)
4431      3. artwork in level directory (stored in artwork sub-directory)
4432      4. setup artwork (currently configured in setup menu) */
4433
4434   if (setup_override_artwork)
4435     artwork_current_identifier = setup_artwork_set;
4436   else if (leveldir_artwork_set != NULL)
4437     artwork_current_identifier = leveldir_artwork_set;
4438   else if (getTreeInfoFromIdentifier(artwork_first_node, leveldir_identifier))
4439     artwork_current_identifier = leveldir_identifier;
4440   else
4441     artwork_current_identifier = setup_artwork_set;
4442
4443
4444   /* 2nd step: check if it is really needed to reload artwork set
4445      ------------------------------------------------------------ */
4446
4447 #if 0
4448   if (type == ARTWORK_TYPE_GRAPHICS)
4449     printf("::: 0: '%s' ['%s', '%s'] ['%s' ('%s')]\n",
4450            artwork_new_identifier,
4451            ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4452            artwork_current_identifier,
4453            leveldir_current->graphics_set,
4454            leveldir_current->identifier);
4455 #endif
4456
4457   /* ---------- reload if level set and also artwork set has changed ------- */
4458   if (leveldir_current_identifier[type] != leveldir_identifier &&
4459       (last_has_level_artwork_set[type] || has_level_artwork_set))
4460     artwork_new_identifier = artwork_current_identifier;
4461
4462   leveldir_current_identifier[type] = leveldir_identifier;
4463   last_has_level_artwork_set[type] = has_level_artwork_set;
4464
4465 #if 0
4466   if (type == ARTWORK_TYPE_GRAPHICS)
4467     printf("::: 1: '%s'\n", artwork_new_identifier);
4468 #endif
4469
4470   /* ---------- reload if "override artwork" setting has changed ----------- */
4471   if (last_override_level_artwork[type] != setup_override_artwork)
4472     artwork_new_identifier = artwork_current_identifier;
4473
4474   last_override_level_artwork[type] = setup_override_artwork;
4475
4476 #if 0
4477   if (type == ARTWORK_TYPE_GRAPHICS)
4478     printf("::: 2: '%s'\n", artwork_new_identifier);
4479 #endif
4480
4481   /* ---------- reload if current artwork identifier has changed ----------- */
4482   if (strcmp(ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4483              artwork_current_identifier) != 0)
4484     artwork_new_identifier = artwork_current_identifier;
4485
4486   *(ARTWORK_CURRENT_IDENTIFIER_PTR(artwork, type))= artwork_current_identifier;
4487
4488 #if 0
4489   if (type == ARTWORK_TYPE_GRAPHICS)
4490     printf("::: 3: '%s'\n", artwork_new_identifier);
4491 #endif
4492
4493   /* ---------- do not reload directly after starting ---------------------- */
4494   if (!initialized[type])
4495     artwork_new_identifier = NULL;
4496
4497   initialized[type] = TRUE;
4498
4499 #if 0
4500   if (type == ARTWORK_TYPE_GRAPHICS)
4501     printf("::: 4: '%s'\n", artwork_new_identifier);
4502 #endif
4503
4504 #if 0
4505   if (type == ARTWORK_TYPE_GRAPHICS)
4506     printf("CHECKING OLD/NEW GFX:\n- OLD: %s\n- NEW: %s ['%s', '%s'] ['%s']\n",
4507            artwork.gfx_current_identifier, artwork_current_identifier,
4508            artwork.gfx_current->identifier, leveldir_current->graphics_set,
4509            artwork_new_identifier);
4510 #endif
4511
4512   return artwork_new_identifier;
4513 }
4514
4515 void ReloadCustomArtwork(int force_reload)
4516 {
4517   char *gfx_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_GRAPHICS);
4518   char *snd_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_SOUNDS);
4519   char *mus_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_MUSIC);
4520   boolean force_reload_gfx = (force_reload & (1 << ARTWORK_TYPE_GRAPHICS));
4521   boolean force_reload_snd = (force_reload & (1 << ARTWORK_TYPE_SOUNDS));
4522   boolean force_reload_mus = (force_reload & (1 << ARTWORK_TYPE_MUSIC));
4523   boolean redraw_screen = FALSE;
4524
4525   if (gfx_new_identifier != NULL || force_reload_gfx)
4526   {
4527 #if 0
4528     printf("RELOADING GRAPHICS '%s' -> '%s' ['%s', '%s']\n",
4529            artwork.gfx_current_identifier,
4530            gfx_new_identifier,
4531            artwork.gfx_current->identifier,
4532            leveldir_current->graphics_set);
4533 #endif
4534
4535     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4536
4537     InitImages();
4538
4539     redraw_screen = TRUE;
4540   }
4541
4542   if (snd_new_identifier != NULL || force_reload_snd)
4543   {
4544     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4545
4546     InitSound(snd_new_identifier);
4547
4548     redraw_screen = TRUE;
4549   }
4550
4551   if (mus_new_identifier != NULL || force_reload_mus)
4552   {
4553     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4554
4555     InitMusic(mus_new_identifier);
4556
4557     redraw_screen = TRUE;
4558   }
4559
4560   if (redraw_screen)
4561   {
4562     InitGfxBackground();
4563
4564     /* force redraw of (open or closed) door graphics */
4565     SetDoorState(DOOR_OPEN_ALL);
4566     CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
4567   }
4568 }
4569
4570 void KeyboardAutoRepeatOffUnlessAutoplay()
4571 {
4572   if (global.autoplay_leveldir == NULL)
4573     KeyboardAutoRepeatOff();
4574 }
4575
4576
4577 /* ========================================================================= */
4578 /* OpenAll()                                                                 */
4579 /* ========================================================================= */
4580
4581 void OpenAll()
4582 {
4583   InitGlobal();                 /* initialize some global variables */
4584
4585   if (options.execute_command)
4586     Execute_Command(options.execute_command);
4587
4588   if (options.serveronly)
4589   {
4590 #if defined(PLATFORM_UNIX)
4591     NetworkServer(options.server_port, options.serveronly);
4592 #else
4593     Error(ERR_WARN, "networking only supported in Unix version");
4594 #endif
4595
4596     exit(0);                    /* never reached, server loops forever */
4597   }
4598
4599   InitSetup();
4600
4601   InitGameInfo();
4602   InitPlayerInfo();
4603   InitArtworkInfo();            /* needed before loading gfx, sound & music */
4604   InitArtworkConfig();          /* needed before forking sound child process */
4605   InitMixer();
4606
4607   InitCounter();
4608
4609   InitRND(NEW_RANDOMIZE);
4610   InitSimpleRND(NEW_RANDOMIZE);
4611
4612   InitJoysticks();
4613
4614   InitVideoDisplay();
4615   InitVideoBuffer(&backbuffer, &window, WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH,
4616                   setup.fullscreen);
4617
4618   InitEventFilter(FilterMouseMotionEvents);
4619
4620   InitElementPropertiesStatic();
4621   InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
4622
4623   InitGfx();
4624
4625   InitLevelInfo();
4626   InitLevelArtworkInfo();
4627
4628   InitImages();                 /* needs to know current level directory */
4629   InitSound(NULL);              /* needs to know current level directory */
4630   InitMusic(NULL);              /* needs to know current level directory */
4631
4632   InitGfxBackground();
4633
4634   if (global.autoplay_leveldir)
4635   {
4636     AutoPlayTape();
4637     return;
4638   }
4639   else if (global.convert_leveldir)
4640   {
4641     ConvertLevels();
4642     return;
4643   }
4644
4645   game_status = GAME_MODE_MAIN;
4646
4647 #if 1
4648   em_open_all();
4649 #endif
4650
4651   DrawMainMenu();
4652
4653   InitNetworkServer();
4654 }
4655
4656 void CloseAllAndExit(int exit_value)
4657 {
4658   StopSounds();
4659   FreeAllSounds();
4660   FreeAllMusic();
4661   CloseAudio();         /* called after freeing sounds (needed for SDL) */
4662
4663 #if 1
4664   em_close_all();
4665 #endif
4666
4667   FreeAllImages();
4668
4669 #if defined(TARGET_SDL)
4670   if (network_server)   /* terminate network server */
4671     SDL_KillThread(server_thread);
4672 #endif
4673
4674   CloseVideoDisplay();
4675   ClosePlatformDependentStuff();
4676
4677   exit(exit_value);
4678 }