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 struct FontBitmapInfo font_initial[NUM_INITIAL_FONTS];
  41
  42
  43 static void InitTileClipmasks()
  44 {
  45 #if 0
  46 #if defined(TARGET_X11)
  47   XGCValues clip_gc_values;
  48   unsigned long clip_gc_valuemask;
  49
  50 #if defined(TARGET_X11_NATIVE)
  51
  52 #if 0
  53   GC copy_clipmask_gc;
  54
  55   static struct
  56   {
  57     int start;
  58     int count;
  59   }
  60   tile_needs_clipping[] =
  61   {
  62     { GFX_SPIELER1_UP, 4 },
  63     { GFX_SPIELER1_DOWN, 4 },
  64     { GFX_SPIELER1_LEFT, 4 },
  65     { GFX_SPIELER1_RIGHT, 4 },
  66     { GFX_SPIELER1_PUSH_LEFT, 4 },
  67     { GFX_SPIELER1_PUSH_RIGHT, 4 },
  68     { GFX_SPIELER2_UP, 4 },
  69     { GFX_SPIELER2_DOWN, 4 },
  70     { GFX_SPIELER2_LEFT, 4 },
  71     { GFX_SPIELER2_RIGHT, 4 },
  72     { GFX_SPIELER2_PUSH_LEFT, 4 },
  73     { GFX_SPIELER2_PUSH_RIGHT, 4 },
  74     { GFX_SPIELER3_UP, 4 },
  75     { GFX_SPIELER3_DOWN, 4 },
  76     { GFX_SPIELER3_LEFT, 4 },
  77     { GFX_SPIELER3_RIGHT, 4 },
  78     { GFX_SPIELER3_PUSH_LEFT, 4 },
  79     { GFX_SPIELER3_PUSH_RIGHT, 4 },
  80     { GFX_SPIELER4_UP, 4 },
  81     { GFX_SPIELER4_DOWN, 4 },
  82     { GFX_SPIELER4_LEFT, 4 },
  83     { GFX_SPIELER4_RIGHT, 4 },
  84     { GFX_SPIELER4_PUSH_LEFT, 4 },
  85     { GFX_SPIELER4_PUSH_RIGHT, 4 },
  86     { GFX_SP_MURPHY, 1 },
  87     { GFX_MURPHY_GO_LEFT, 3 },
  88     { GFX_MURPHY_GO_RIGHT, 3 },
  89     { GFX_MURPHY_SNAP_UP, 1 },
  90     { GFX_MURPHY_SNAP_DOWN, 1 },
  91     { GFX_MURPHY_SNAP_RIGHT, 1 },
  92     { GFX_MURPHY_SNAP_LEFT, 1 },
  93     { GFX_MURPHY_PUSH_RIGHT, 1 },
  94     { GFX_MURPHY_PUSH_LEFT, 1 },
  95     { GFX_GEBLUBBER, 4 },
  96     { GFX_DYNAMIT, 7 },
  97     { GFX_DYNABOMB, 4 },
  98     { GFX_EXPLOSION, 8 },
  99     { GFX_SOKOBAN_OBJEKT, 1 },
 100     { GFX_FUNKELN_BLAU, 3 },
 101     { GFX_FUNKELN_WEISS, 3 },
 102     { GFX2_SHIELD_PASSIVE, 3 },
 103     { GFX2_SHIELD_ACTIVE, 3 },
 104     { -1, 0 }
 105   };
 106 #endif
 107
 108 #endif /* TARGET_X11_NATIVE */
 109 #endif /* TARGET_X11 */
 110
 111   int i;
 112
 113   /* initialize pixmap array for special X11 tile clipping to Pixmap 'None' */
 114   for (i = 0; i < NUM_TILES; i++)
 115     tile_clipmask[i] = None;
 116
 117 #if defined(TARGET_X11)
 118   /* This stuff is needed because X11 (XSetClipOrigin(), to be precise) is
 119      often very slow when preparing a masked XCopyArea() for big Pixmaps.
 120      To prevent this, create small (tile-sized) mask Pixmaps which will then
 121      be set much faster with XSetClipOrigin() and speed things up a lot. */
 122
 123   clip_gc_values.graphics_exposures = False;
 124   clip_gc_valuemask = GCGraphicsExposures;
 125   tile_clip_gc = XCreateGC(display, window->drawable,
 126                            clip_gc_valuemask, &clip_gc_values);
 127
 128 #if 0
 129   for (i = 0; i < NUM_BITMAPS; i++)
 130   {
 131     if (pix[i]->clip_mask)
 132     {
 133       clip_gc_values.graphics_exposures = False;
 134       clip_gc_values.clip_mask = pix[i]->clip_mask;
 135       clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
 136       pix[i]->stored_clip_gc = XCreateGC(display, window->drawable,
 137                                          clip_gc_valuemask, &clip_gc_values);
 138     }
 139   }
 140 #endif
 141
 142 #if defined(TARGET_X11_NATIVE)
 143
 144 #if 0
 145   /* create graphic context structures needed for clipping */
 146   clip_gc_values.graphics_exposures = False;
 147   clip_gc_valuemask = GCGraphicsExposures;
 148   copy_clipmask_gc = XCreateGC(display, pix[PIX_BACK]->clip_mask,
 149                                clip_gc_valuemask, &clip_gc_values);
 150
 151   /* create only those clipping Pixmaps we really need */
 152   for (i = 0; tile_needs_clipping[i].start >= 0; i++)
 153   {
 154     int j;
 155
 156     for (j = 0; j < tile_needs_clipping[i].count; j++)
 157     {
 158       int tile = tile_needs_clipping[i].start + j;
 159       int graphic = tile;
 160       int src_x, src_y;
 161       Bitmap *src_bitmap;
 162       Pixmap src_pixmap;
 163
 164       getGraphicSource(graphic, &src_bitmap, &src_x, &src_y);
 165       src_pixmap = src_bitmap->clip_mask;
 166
 167       tile_clipmask[tile] = XCreatePixmap(display, window->drawable,
 168                                           TILEX, TILEY, 1);
 169
 170       XCopyArea(display, src_pixmap, tile_clipmask[tile], copy_clipmask_gc,
 171                 src_x, src_y, TILEX, TILEY, 0, 0);
 172     }
 173   }
 174
 175   XFreeGC(display, copy_clipmask_gc);
 176 #endif
 177
 178 #endif /* TARGET_X11_NATIVE */
 179 #endif /* TARGET_X11 */
 180 #endif
 181 }
 182
 183 void FreeTileClipmasks()
 184 {
 185 #if 0
 186 #if defined(TARGET_X11)
 187   int i;
 188
 189   for (i = 0; i < NUM_TILES; i++)
 190   {
 191     if (tile_clipmask[i] != None)
 192     {
 193       XFreePixmap(display, tile_clipmask[i]);
 194       tile_clipmask[i] = None;
 195     }
 196   }
 197
 198   if (tile_clip_gc)
 199     XFreeGC(display, tile_clip_gc);
 200   tile_clip_gc = None;
 201
 202 #if 0
 203   for (i = 0; i < NUM_BITMAPS; i++)
 204   {
 205     if (pix[i] != NULL && pix[i]->stored_clip_gc)
 206     {
 207       XFreeGC(display, pix[i]->stored_clip_gc);
 208       pix[i]->stored_clip_gc = None;
 209     }
 210   }
 211 #endif
 212
 213 #endif /* TARGET_X11 */
 214 #endif
 215 }
 216
 217 void FreeGadgets()
 218 {
 219   FreeLevelEditorGadgets();
 220   FreeGameButtons();
 221   FreeTapeButtons();
 222   FreeToolButtons();
 223   FreeScreenGadgets();
 224 }
 225
 226 void InitGadgets()
 227 {
 228   static boolean gadgets_initialized = FALSE;
 229
 230   if (gadgets_initialized)
 231     FreeGadgets();
 232
 233   CreateLevelEditorGadgets();
 234   CreateGameButtons();
 235   CreateTapeButtons();
 236   CreateToolButtons();
 237   CreateScreenGadgets();
 238
 239   gadgets_initialized = TRUE;
 240 }
 241
 242 void InitElementSmallImages()
 243 {
 244   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 245   int num_property_mappings = getImageListPropertyMappingSize();
 246   int i;
 247
 248   /* initialize normal images from static configuration */
 249   for (i = 0; element_to_graphic[i].element > -1; i++)
 250     CreateImageWithSmallImages(element_to_graphic[i].graphic);
 251
 252   /* initialize special images from static configuration */
 253   for (i = 0; element_to_special_graphic[i].element > -1; i++)
 254     CreateImageWithSmallImages(element_to_special_graphic[i].graphic);
 255
 256   /* initialize images from dynamic configuration */
 257   for (i = 0; i < num_property_mappings; i++)
 258     if (property_mapping[i].artwork_index < MAX_NUM_ELEMENTS)
 259       CreateImageWithSmallImages(property_mapping[i].artwork_index);
 260 }
 261
 262 static int getFontBitmapID(int font_nr)
 263 {
 264   int special = -1;
 265
 266   if (game_status >= GAME_MODE_MAIN && game_status <= GAME_MODE_PSEUDO_PREVIEW)
 267     special = game_status;
 268   else if (game_status == GAME_MODE_PSEUDO_TYPENAME)
 269     special = GFX_SPECIAL_ARG_MAIN;
 270   else if (game_status == GAME_MODE_PLAYING)
 271     special = GFX_SPECIAL_ARG_DOOR;
 272
 273   if (special != -1)
 274     return font_info[font_nr].special_bitmap_id[special];
 275   else
 276     return font_nr;
 277 }
 278
 279 void InitFontGraphicInfo()
 280 {
 281   static struct FontBitmapInfo *font_bitmap_info = NULL;
 282   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 283   int num_property_mappings = getImageListPropertyMappingSize();
 284   int num_font_bitmaps = NUM_FONTS;
 285   int i, j;
 286
 287   if (graphic_info == NULL)             /* still at startup phase */
 288   {
 289     InitFontInfo(font_initial, NUM_INITIAL_FONTS, getFontBitmapID);
 290
 291     return;
 292   }
 293
 294   /* ---------- initialize font graphic definitions ---------- */
 295
 296   /* always start with reliable default values (normal font graphics) */
 297 #if 1
 298   for (i = 0; i < NUM_FONTS; i++)
 299     font_info[i].graphic = IMG_FONT_INITIAL_1;
 300 #else
 301   for (i = 0; i < NUM_FONTS; i++)
 302     font_info[i].graphic = FONT_INITIAL_1;
 303 #endif
 304
 305   /* initialize normal font/graphic mapping from static configuration */
 306   for (i = 0; font_to_graphic[i].font_nr > -1; i++)
 307   {
 308     int font_nr = font_to_graphic[i].font_nr;
 309     int special = font_to_graphic[i].special;
 310     int graphic = font_to_graphic[i].graphic;
 311
 312     if (special != -1)
 313       continue;
 314
 315     font_info[font_nr].graphic = graphic;
 316   }
 317
 318   /* always start with reliable default values (special font graphics) */
 319   for (i = 0; i < NUM_FONTS; i++)
 320   {
 321     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 322     {
 323       font_info[i].special_graphic[j] = font_info[i].graphic;
 324       font_info[i].special_bitmap_id[j] = i;
 325     }
 326   }
 327
 328   /* initialize special font/graphic mapping from static configuration */
 329   for (i = 0; font_to_graphic[i].font_nr > -1; i++)
 330   {
 331     int font_nr = font_to_graphic[i].font_nr;
 332     int special = font_to_graphic[i].special;
 333     int graphic = font_to_graphic[i].graphic;
 334
 335     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 336     {
 337       font_info[font_nr].special_graphic[special] = graphic;
 338       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
 339       num_font_bitmaps++;
 340     }
 341   }
 342
 343   /* initialize special element/graphic mapping from dynamic configuration */
 344   for (i = 0; i < num_property_mappings; i++)
 345   {
 346     int font_nr = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
 347     int special = property_mapping[i].ext3_index;
 348     int graphic = property_mapping[i].artwork_index;
 349
 350     if (font_nr < 0)
 351       continue;
 352
 353     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 354     {
 355       font_info[font_nr].special_graphic[special] = graphic;
 356       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
 357       num_font_bitmaps++;
 358     }
 359   }
 360
 361   /* ---------- initialize font bitmap array ---------- */
 362
 363   if (font_bitmap_info != NULL)
 364     FreeFontInfo(font_bitmap_info);
 365
 366   font_bitmap_info =
 367     checked_calloc(num_font_bitmaps * sizeof(struct FontBitmapInfo));
 368
 369   /* ---------- initialize font bitmap definitions ---------- */
 370
 371   for (i = 0; i < NUM_FONTS; i++)
 372   {
 373     if (i < NUM_INITIAL_FONTS)
 374     {
 375       font_bitmap_info[i] = font_initial[i];
 376       continue;
 377     }
 378
 379     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 380     {
 381       int font_bitmap_id = font_info[i].special_bitmap_id[j];
 382       int graphic = font_info[i].special_graphic[j];
 383
 384       /* set 'graphic_info' for font entries, if uninitialized (guessed) */
 385       if (graphic_info[graphic].anim_frames < MIN_NUM_CHARS_PER_FONT)
 386       {
 387         graphic_info[graphic].anim_frames = DEFAULT_NUM_CHARS_PER_FONT;
 388         graphic_info[graphic].anim_frames_per_line= DEFAULT_NUM_CHARS_PER_LINE;
 389       }
 390
 391       /* copy font relevant information from graphics information */
 392       font_bitmap_info[font_bitmap_id].bitmap = graphic_info[graphic].bitmap;
 393       font_bitmap_info[font_bitmap_id].src_x  = graphic_info[graphic].src_x;
 394       font_bitmap_info[font_bitmap_id].src_y  = graphic_info[graphic].src_y;
 395       font_bitmap_info[font_bitmap_id].width  = graphic_info[graphic].width;
 396       font_bitmap_info[font_bitmap_id].height = graphic_info[graphic].height;
 397       font_bitmap_info[font_bitmap_id].draw_x = graphic_info[graphic].draw_x;
 398       font_bitmap_info[font_bitmap_id].draw_y = graphic_info[graphic].draw_y;
 399
 400       font_bitmap_info[font_bitmap_id].num_chars =
 401         graphic_info[graphic].anim_frames;
 402       font_bitmap_info[font_bitmap_id].num_chars_per_line =
 403         graphic_info[graphic].anim_frames_per_line;
 404     }
 405   }
 406
 407   InitFontInfo(font_bitmap_info, num_font_bitmaps, getFontBitmapID);
 408 }
 409
 410 void InitElementGraphicInfo()
 411 {
 412   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 413   int num_property_mappings = getImageListPropertyMappingSize();
 414   int i, act, dir;
 415
 416   if (graphic_info == NULL)             /* still at startup phase */
 417     return;
 418
 419   /* set values to -1 to identify later as "uninitialized" values */
 420   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 421   {
 422     for (act = 0; act < NUM_ACTIONS; act++)
 423     {
 424       element_info[i].graphic[act] = -1;
 425       element_info[i].crumbled[act] = -1;
 426
 427       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 428       {
 429         element_info[i].direction_graphic[act][dir] = -1;
 430         element_info[i].direction_crumbled[act][dir] = -1;
 431       }
 432     }
 433   }
 434
 435   /* initialize normal element/graphic mapping from static configuration */
 436   for (i = 0; element_to_graphic[i].element > -1; i++)
 437   {
 438     int element      = element_to_graphic[i].element;
 439     int action       = element_to_graphic[i].action;
 440     int direction    = element_to_graphic[i].direction;
 441     boolean crumbled = element_to_graphic[i].crumbled;
 442     int graphic      = element_to_graphic[i].graphic;
 443     int base_graphic = el2baseimg(element);
 444
 445     if (graphic_info[graphic].bitmap == NULL)
 446       continue;
 447
 448     if ((action > -1 || direction > -1 || crumbled == TRUE) &&
 449         base_graphic != -1)
 450     {
 451       boolean base_redefined = getImageListEntry(base_graphic)->redefined;
 452       boolean act_dir_redefined = getImageListEntry(graphic)->redefined;
 453
 454       /* if the base graphic ("emerald", for example) has been redefined,
 455          but not the action graphic ("emerald.falling", for example), do not
 456          use an existing (in this case considered obsolete) action graphic
 457          anymore, but use the automatically determined default graphic */
 458       if (base_redefined && !act_dir_redefined)
 459         continue;
 460     }
 461
 462     if (action < 0)
 463       action = ACTION_DEFAULT;
 464
 465     if (crumbled)
 466     {
 467       if (direction > -1)
 468         element_info[element].direction_crumbled[action][direction] = graphic;
 469       else
 470         element_info[element].crumbled[action] = graphic;
 471     }
 472     else
 473     {
 474       if (direction > -1)
 475         element_info[element].direction_graphic[action][direction] = graphic;
 476       else
 477         element_info[element].graphic[action] = graphic;
 478     }
 479   }
 480
 481   /* initialize normal element/graphic mapping from dynamic configuration */
 482   for (i = 0; i < num_property_mappings; i++)
 483   {
 484     int element   = property_mapping[i].base_index;
 485     int action    = property_mapping[i].ext1_index;
 486     int direction = property_mapping[i].ext2_index;
 487     int special   = property_mapping[i].ext3_index;
 488     int graphic   = property_mapping[i].artwork_index;
 489     boolean crumbled = FALSE;
 490
 491     if (special == GFX_SPECIAL_ARG_CRUMBLED)
 492     {
 493       special = -1;
 494       crumbled = TRUE;
 495     }
 496
 497     if (graphic_info[graphic].bitmap == NULL)
 498       continue;
 499
 500     if (element >= MAX_NUM_ELEMENTS || special != -1)
 501       continue;
 502
 503     if (action < 0)
 504       action = ACTION_DEFAULT;
 505
 506     if (crumbled)
 507     {
 508       if (direction < 0)
 509         for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 510           element_info[element].direction_crumbled[action][dir] = -1;
 511
 512       if (direction > -1)
 513         element_info[element].direction_crumbled[action][direction] = graphic;
 514       else
 515         element_info[element].crumbled[action] = graphic;
 516     }
 517     else
 518     {
 519       if (direction < 0)
 520         for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 521           element_info[element].direction_graphic[action][dir] = -1;
 522
 523       if (direction > -1)
 524         element_info[element].direction_graphic[action][direction] = graphic;
 525       else
 526         element_info[element].graphic[action] = graphic;
 527     }
 528   }
 529
 530   /* now copy all graphics that are defined to be cloned from other graphics */
 531   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 532   {
 533     int graphic = element_info[i].graphic[ACTION_DEFAULT];
 534     int crumbled_like, diggable_like;
 535
 536     if (graphic == -1)
 537       continue;
 538
 539     crumbled_like = graphic_info[graphic].crumbled_like;
 540     diggable_like = graphic_info[graphic].diggable_like;
 541
 542     if (crumbled_like != -1 && element_info[i].crumbled[ACTION_DEFAULT] == -1)
 543     {
 544       for (act = 0; act < NUM_ACTIONS; act++)
 545         element_info[i].crumbled[act] =
 546           element_info[crumbled_like].crumbled[act];
 547       for (act = 0; act < NUM_ACTIONS; act++)
 548         for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 549           element_info[i].direction_crumbled[act][dir] =
 550             element_info[crumbled_like].direction_crumbled[act][dir];
 551     }
 552
 553     if (diggable_like != -1 && element_info[i].graphic[ACTION_DIGGING] == -1)
 554     {
 555       element_info[i].graphic[ACTION_DIGGING] =
 556         element_info[diggable_like].graphic[ACTION_DIGGING];
 557       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 558         element_info[i].direction_graphic[ACTION_DIGGING][dir] =
 559           element_info[diggable_like].direction_graphic[ACTION_DIGGING][dir];
 560     }
 561   }
 562
 563 #if 1
 564   /* now set all undefined/invalid graphics to -1 to set to default after it */
 565   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 566   {
 567     for (act = 0; act < NUM_ACTIONS; act++)
 568     {
 569       int graphic;
 570
 571       graphic = element_info[i].graphic[act];
 572       if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 573         element_info[i].graphic[act] = -1;
 574
 575       graphic = element_info[i].crumbled[act];
 576       if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 577         element_info[i].crumbled[act] = -1;
 578
 579       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 580       {
 581         graphic = element_info[i].direction_graphic[act][dir];
 582         if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 583           element_info[i].direction_graphic[act][dir] = -1;
 584
 585         graphic = element_info[i].direction_crumbled[act][dir];
 586         if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 587           element_info[i].direction_crumbled[act][dir] = -1;
 588       }
 589     }
 590   }
 591 #endif
 592
 593   /* now set all '-1' values to element specific default values */
 594   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 595   {
 596     int default_graphic = element_info[i].graphic[ACTION_DEFAULT];
 597     int default_crumbled = element_info[i].crumbled[ACTION_DEFAULT];
 598     int default_direction_graphic[NUM_DIRECTIONS];
 599     int default_direction_crumbled[NUM_DIRECTIONS];
 600
 601     if (default_graphic == -1)
 602       default_graphic = IMG_UNKNOWN;
 603     if (default_crumbled == -1)
 604       default_crumbled = IMG_EMPTY;
 605
 606     for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 607     {
 608       default_direction_graphic[dir] =
 609         element_info[i].direction_graphic[ACTION_DEFAULT][dir];
 610       default_direction_crumbled[dir] =
 611         element_info[i].direction_crumbled[ACTION_DEFAULT][dir];
 612
 613       if (default_direction_graphic[dir] == -1)
 614         default_direction_graphic[dir] = default_graphic;
 615       if (default_direction_crumbled[dir] == -1)
 616         default_direction_crumbled[dir] = default_crumbled;
 617     }
 618
 619     for (act = 0; act < NUM_ACTIONS; act++)
 620     {
 621       boolean act_remove = ((IS_DIGGABLE(i)    && act == ACTION_DIGGING)  ||
 622                             (IS_SNAPPABLE(i)   && act == ACTION_SNAPPING) ||
 623                             (IS_COLLECTIBLE(i) && act == ACTION_COLLECTING));
 624       boolean act_turning = (act == ACTION_TURNING_FROM_LEFT ||
 625                              act == ACTION_TURNING_FROM_RIGHT ||
 626                              act == ACTION_TURNING_FROM_UP ||
 627                              act == ACTION_TURNING_FROM_DOWN);
 628
 629       /* generic default action graphic (defined by "[default]" directive) */
 630       int default_action_graphic = element_info[EL_DEFAULT].graphic[act];
 631       int default_action_crumbled = element_info[EL_DEFAULT].crumbled[act];
 632
 633       /* look for special default action graphic (classic game specific) */
 634       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].graphic[act] != -1)
 635         default_action_graphic = element_info[EL_BD_DEFAULT].graphic[act];
 636       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].graphic[act] != -1)
 637         default_action_graphic = element_info[EL_SP_DEFAULT].graphic[act];
 638       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].graphic[act] != -1)
 639         default_action_graphic = element_info[EL_SB_DEFAULT].graphic[act];
 640
 641       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].crumbled[act] != -1)
 642         default_action_crumbled = element_info[EL_BD_DEFAULT].crumbled[act];
 643       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].crumbled[act] != -1)
 644         default_action_crumbled = element_info[EL_SP_DEFAULT].crumbled[act];
 645       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].crumbled[act] != -1)
 646         default_action_crumbled = element_info[EL_SB_DEFAULT].crumbled[act];
 647
 648 #if 1
 649       /* !!! make this better !!! */
 650       if (i == EL_EMPTY_SPACE)
 651       {
 652         default_action_graphic = element_info[EL_DEFAULT].graphic[act];
 653         default_action_crumbled = element_info[EL_DEFAULT].crumbled[act];
 654       }
 655 #endif
 656
 657       if (default_action_graphic == -1)
 658         default_action_graphic = default_graphic;
 659       if (default_action_crumbled == -1)
 660         default_action_crumbled = default_crumbled;
 661
 662       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 663       {
 664         int default_action_direction_graphic = element_info[i].graphic[act];
 665         int default_action_direction_crumbled = element_info[i].crumbled[act];
 666
 667         /* no graphic for current action -- use default direction graphic */
 668         if (default_action_direction_graphic == -1)
 669           default_action_direction_graphic =
 670             (act_remove ? IMG_EMPTY :
 671              act_turning ?
 672              element_info[i].direction_graphic[ACTION_TURNING][dir] :
 673              default_direction_graphic[dir]);
 674         if (default_action_direction_crumbled == -1)
 675           default_action_direction_crumbled =
 676             (act_remove ? IMG_EMPTY :
 677              act_turning ?
 678              element_info[i].direction_crumbled[ACTION_TURNING][dir] :
 679              default_direction_crumbled[dir]);
 680
 681         if (element_info[i].direction_graphic[act][dir] == -1)
 682           element_info[i].direction_graphic[act][dir] =
 683             default_action_direction_graphic;
 684         if (element_info[i].direction_crumbled[act][dir] == -1)
 685           element_info[i].direction_crumbled[act][dir] =
 686             default_action_direction_crumbled;
 687       }
 688
 689       /* no graphic for this specific action -- use default action graphic */
 690       if (element_info[i].graphic[act] == -1)
 691         element_info[i].graphic[act] =
 692           (act_remove ? IMG_EMPTY :
 693            act_turning ? element_info[i].graphic[ACTION_TURNING] :
 694            default_action_graphic);
 695       if (element_info[i].crumbled[act] == -1)
 696         element_info[i].crumbled[act] =
 697           (act_remove ? IMG_EMPTY :
 698            act_turning ? element_info[i].crumbled[ACTION_TURNING] :
 699            default_action_crumbled);
 700     }
 701   }
 702
 703 #if 1
 704   /* set animation mode to "none" for each graphic with only 1 frame */
 705   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 706   {
 707     for (act = 0; act < NUM_ACTIONS; act++)
 708     {
 709       int graphic = element_info[i].graphic[act];
 710       int crumbled = element_info[i].crumbled[act];
 711
 712       if (graphic_info[graphic].anim_frames == 1)
 713         graphic_info[graphic].anim_mode = ANIM_NONE;
 714       if (graphic_info[crumbled].anim_frames == 1)
 715         graphic_info[crumbled].anim_mode = ANIM_NONE;
 716
 717       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 718       {
 719         graphic = element_info[i].direction_graphic[act][dir];
 720         crumbled = element_info[i].direction_crumbled[act][dir];
 721
 722         if (graphic_info[graphic].anim_frames == 1)
 723           graphic_info[graphic].anim_mode = ANIM_NONE;
 724         if (graphic_info[crumbled].anim_frames == 1)
 725           graphic_info[crumbled].anim_mode = ANIM_NONE;
 726       }
 727     }
 728   }
 729 #endif
 730
 731 #if 0
 732 #if DEBUG
 733   if (options.verbose)
 734   {
 735     for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 736       if (element_info[i].graphic[ACTION_DEFAULT] == IMG_UNKNOWN &&
 737           i != EL_UNKNOWN)
 738         Error(ERR_RETURN, "warning: no graphic for element '%s' (%d)",
 739               element_info[i].token_name, i);
 740   }
 741 #endif
 742 #endif
 743 }
 744
 745 void InitElementSpecialGraphicInfo()
 746 {
 747   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 748   int num_property_mappings = getImageListPropertyMappingSize();
 749   int i, j;
 750
 751   /* always start with reliable default values */
 752   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 753     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 754       element_info[i].special_graphic[j] =
 755         element_info[i].graphic[ACTION_DEFAULT];
 756
 757   /* initialize special element/graphic mapping from static configuration */
 758   for (i = 0; element_to_special_graphic[i].element > -1; i++)
 759   {
 760     int element = element_to_special_graphic[i].element;
 761     int special = element_to_special_graphic[i].special;
 762     int graphic = element_to_special_graphic[i].graphic;
 763     int base_graphic = el2baseimg(element);
 764     boolean base_redefined = getImageListEntry(base_graphic)->redefined;
 765     boolean special_redefined = getImageListEntry(graphic)->redefined;
 766
 767     /* if the base graphic ("emerald", for example) has been redefined,
 768        but not the special graphic ("emerald.EDITOR", for example), do not
 769        use an existing (in this case considered obsolete) special graphic
 770        anymore, but use the automatically created (down-scaled) graphic */
 771     if (base_redefined && !special_redefined)
 772       continue;
 773
 774     element_info[element].special_graphic[special] = graphic;
 775   }
 776
 777   /* initialize special element/graphic mapping from dynamic configuration */
 778   for (i = 0; i < num_property_mappings; i++)
 779   {
 780     int element = property_mapping[i].base_index;
 781     int special = property_mapping[i].ext3_index;
 782     int graphic = property_mapping[i].artwork_index;
 783
 784     if (element >= MAX_NUM_ELEMENTS)
 785       continue;
 786
 787     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 788       element_info[element].special_graphic[special] = graphic;
 789   }
 790
 791 #if 1
 792   /* now set all undefined/invalid graphics to default */
 793   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 794     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 795       if (graphic_info[element_info[i].special_graphic[j]].bitmap == NULL)
 796         element_info[i].special_graphic[j] =
 797           element_info[i].graphic[ACTION_DEFAULT];
 798 #endif
 799 }
 800
 801 static int get_element_from_token(char *token)
 802 {
 803   int i;
 804
 805   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 806     if (strcmp(element_info[i].token_name, token) == 0)
 807       return i;
 808
 809   return -1;
 810 }
 811
 812 static void set_graphic_parameters(int graphic, char **parameter_raw)
 813 {
 814   Bitmap *src_bitmap = getBitmapFromImageID(graphic);
 815   int parameter[NUM_GFX_ARGS];
 816   int anim_frames_per_row = 1, anim_frames_per_col = 1;
 817   int anim_frames_per_line = 1;
 818   int i;
 819
 820   /* get integer values from string parameters */
 821   for (i = 0; i < NUM_GFX_ARGS; i++)
 822   {
 823     parameter[i] =
 824       get_parameter_value(image_config_suffix[i].token, parameter_raw[i],
 825                           image_config_suffix[i].type);
 826
 827     if (image_config_suffix[i].type == TYPE_TOKEN)
 828       parameter[i] = get_element_from_token(parameter_raw[i]);
 829   }
 830
 831   graphic_info[graphic].bitmap = src_bitmap;
 832
 833   /* start with reliable default values */
 834   graphic_info[graphic].src_x = 0;
 835   graphic_info[graphic].src_y = 0;
 836   graphic_info[graphic].width = TILEX;
 837   graphic_info[graphic].height = TILEY;
 838   graphic_info[graphic].offset_x = 0;   /* one or both of these values ... */
 839   graphic_info[graphic].offset_y = 0;   /* ... will be corrected later */
 840   graphic_info[graphic].crumbled_like = -1;     /* do not use clone element */
 841   graphic_info[graphic].diggable_like = -1;     /* do not use clone element */
 842   graphic_info[graphic].border_size = TILEX / 8;  /* "CRUMBLED" border size */
 843   graphic_info[graphic].anim_delay_fixed = 0;
 844   graphic_info[graphic].anim_delay_random = 0;
 845   graphic_info[graphic].post_delay_fixed = 0;
 846   graphic_info[graphic].post_delay_random = 0;
 847
 848   /* optional x and y tile position of animation frame sequence */
 849   if (parameter[GFX_ARG_XPOS] != ARG_UNDEFINED_VALUE)
 850     graphic_info[graphic].src_x = parameter[GFX_ARG_XPOS] * TILEX;
 851   if (parameter[GFX_ARG_YPOS] != ARG_UNDEFINED_VALUE)
 852     graphic_info[graphic].src_y = parameter[GFX_ARG_YPOS] * TILEY;
 853
 854   /* optional x and y pixel position of animation frame sequence */
 855   if (parameter[GFX_ARG_X] != ARG_UNDEFINED_VALUE)
 856     graphic_info[graphic].src_x = parameter[GFX_ARG_X];
 857   if (parameter[GFX_ARG_Y] != ARG_UNDEFINED_VALUE)
 858     graphic_info[graphic].src_y = parameter[GFX_ARG_Y];
 859
 860   /* optional width and height of each animation frame */
 861   if (parameter[GFX_ARG_WIDTH] != ARG_UNDEFINED_VALUE)
 862     graphic_info[graphic].width = parameter[GFX_ARG_WIDTH];
 863   if (parameter[GFX_ARG_HEIGHT] != ARG_UNDEFINED_VALUE)
 864     graphic_info[graphic].height = parameter[GFX_ARG_HEIGHT];
 865
 866   if (src_bitmap)
 867   {
 868     anim_frames_per_row = src_bitmap->width  / graphic_info[graphic].width;
 869     anim_frames_per_col = src_bitmap->height / graphic_info[graphic].height;
 870   }
 871
 872   /* correct x or y offset dependent of vertical or horizontal frame order */
 873   if (parameter[GFX_ARG_VERTICAL])      /* frames are ordered vertically */
 874   {
 875     graphic_info[graphic].offset_y =
 876       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
 877        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].height);
 878     anim_frames_per_line = anim_frames_per_col;
 879   }
 880   else                                  /* frames are ordered horizontally */
 881   {
 882     graphic_info[graphic].offset_x =
 883       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
 884        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].width);
 885     anim_frames_per_line = anim_frames_per_row;
 886   }
 887
 888   /* optionally, the x and y offset of frames can be specified directly */
 889   if (parameter[GFX_ARG_XOFFSET] != ARG_UNDEFINED_VALUE)
 890     graphic_info[graphic].offset_x = parameter[GFX_ARG_XOFFSET];
 891   if (parameter[GFX_ARG_YOFFSET] != ARG_UNDEFINED_VALUE)
 892     graphic_info[graphic].offset_y = parameter[GFX_ARG_YOFFSET];
 893
 894   /* automatically determine correct number of frames, if not defined */
 895   if (parameter[GFX_ARG_FRAMES] != ARG_UNDEFINED_VALUE)
 896     graphic_info[graphic].anim_frames = parameter[GFX_ARG_FRAMES];
 897   else if (parameter[GFX_ARG_XPOS] == 0 && !parameter[GFX_ARG_VERTICAL])
 898     graphic_info[graphic].anim_frames = anim_frames_per_row;
 899   else if (parameter[GFX_ARG_YPOS] == 0 && parameter[GFX_ARG_VERTICAL])
 900     graphic_info[graphic].anim_frames = anim_frames_per_col;
 901   else
 902     graphic_info[graphic].anim_frames = 1;
 903
 904   graphic_info[graphic].anim_frames_per_line =
 905     (parameter[GFX_ARG_FRAMES_PER_LINE] != ARG_UNDEFINED_VALUE ?
 906      parameter[GFX_ARG_FRAMES_PER_LINE] : anim_frames_per_line);
 907
 908   graphic_info[graphic].anim_delay = parameter[GFX_ARG_DELAY];
 909   if (graphic_info[graphic].anim_delay == 0)    /* delay must be at least 1 */
 910     graphic_info[graphic].anim_delay = 1;
 911
 912   graphic_info[graphic].anim_mode = parameter[GFX_ARG_ANIM_MODE];
 913 #if 0
 914   if (graphic_info[graphic].anim_frames == 1)
 915     graphic_info[graphic].anim_mode = ANIM_NONE;
 916 #endif
 917
 918   /* automatically determine correct start frame, if not defined */
 919   if (parameter[GFX_ARG_START_FRAME] == ARG_UNDEFINED_VALUE)
 920     graphic_info[graphic].anim_start_frame = 0;
 921   else if (graphic_info[graphic].anim_mode & ANIM_REVERSE)
 922     graphic_info[graphic].anim_start_frame =
 923       graphic_info[graphic].anim_frames - parameter[GFX_ARG_START_FRAME] - 1;
 924   else
 925     graphic_info[graphic].anim_start_frame = parameter[GFX_ARG_START_FRAME];
 926
 927   /* animation synchronized with global frame counter, not move position */
 928   graphic_info[graphic].anim_global_sync = parameter[GFX_ARG_GLOBAL_SYNC];
 929
 930   /* optional element for cloning crumble graphics */
 931   if (parameter[GFX_ARG_CRUMBLED_LIKE] != ARG_UNDEFINED_VALUE)
 932     graphic_info[graphic].crumbled_like = parameter[GFX_ARG_CRUMBLED_LIKE];
 933
 934   /* optional element for cloning digging graphics */
 935   if (parameter[GFX_ARG_DIGGABLE_LIKE] != ARG_UNDEFINED_VALUE)
 936     graphic_info[graphic].diggable_like = parameter[GFX_ARG_DIGGABLE_LIKE];
 937
 938   /* optional border size for "crumbling" diggable graphics */
 939   if (parameter[GFX_ARG_BORDER_SIZE] != ARG_UNDEFINED_VALUE)
 940     graphic_info[graphic].border_size = parameter[GFX_ARG_BORDER_SIZE];
 941
 942   /* this is only used for player "boring" and "sleeping" actions */
 943   if (parameter[GFX_ARG_ANIM_DELAY_FIXED] != ARG_UNDEFINED_VALUE)
 944     graphic_info[graphic].anim_delay_fixed =
 945       parameter[GFX_ARG_ANIM_DELAY_FIXED];
 946   if (parameter[GFX_ARG_ANIM_DELAY_RANDOM] != ARG_UNDEFINED_VALUE)
 947     graphic_info[graphic].anim_delay_random =
 948       parameter[GFX_ARG_ANIM_DELAY_RANDOM];
 949   if (parameter[GFX_ARG_POST_DELAY_FIXED] != ARG_UNDEFINED_VALUE)
 950     graphic_info[graphic].post_delay_fixed =
 951       parameter[GFX_ARG_POST_DELAY_FIXED];
 952   if (parameter[GFX_ARG_POST_DELAY_RANDOM] != ARG_UNDEFINED_VALUE)
 953     graphic_info[graphic].post_delay_random =
 954       parameter[GFX_ARG_POST_DELAY_RANDOM];
 955
 956   /* this is only used for toon animations */
 957   graphic_info[graphic].step_offset = parameter[GFX_ARG_STEP_OFFSET];
 958   graphic_info[graphic].step_delay  = parameter[GFX_ARG_STEP_DELAY];
 959
 960   /* this is only used for drawing font characters */
 961   graphic_info[graphic].draw_x = parameter[GFX_ARG_DRAW_XOFFSET];
 962   graphic_info[graphic].draw_y = parameter[GFX_ARG_DRAW_YOFFSET];
 963
 964   /* this is only used for drawing envelope graphics */
 965   graphic_info[graphic].draw_masked = parameter[GFX_ARG_DRAW_MASKED];
 966 }
 967
 968 static void InitGraphicInfo()
 969 {
 970   int fallback_graphic = IMG_CHAR_EXCLAM;
 971   struct FileInfo *fallback_image = getImageListEntry(fallback_graphic);
 972   Bitmap *fallback_bitmap = getBitmapFromImageID(fallback_graphic);
 973   int num_images = getImageListSize();
 974   int i;
 975
 976 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
 977   static boolean clipmasks_initialized = FALSE;
 978   Pixmap src_pixmap;
 979   XGCValues clip_gc_values;
 980   unsigned long clip_gc_valuemask;
 981   GC copy_clipmask_gc = None;
 982 #endif
 983
 984   checked_free(graphic_info);
 985
 986   graphic_info = checked_calloc(num_images * sizeof(struct GraphicInfo));
 987
 988 #if 0
 989   printf("::: graphic_info: %d entries\n", num_images);
 990 #endif
 991
 992 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
 993   if (clipmasks_initialized)
 994   {
 995     for (i = 0; i < num_images; i++)
 996     {
 997       if (graphic_info[i].clip_mask)
 998         XFreePixmap(display, graphic_info[i].clip_mask);
 999       if (graphic_info[i].clip_gc)
1000         XFreeGC(display, graphic_info[i].clip_gc);
1001
1002       graphic_info[i].clip_mask = None;
1003       graphic_info[i].clip_gc = None;
1004     }
1005   }
1006 #endif
1007
1008   for (i = 0; i < num_images; i++)
1009   {
1010     struct FileInfo *image = getImageListEntry(i);
1011     Bitmap *src_bitmap;
1012     int src_x, src_y;
1013     int first_frame, last_frame;
1014
1015 #if 0
1016     printf("::: image: '%s' [%d]\n", image->token, i);
1017 #endif
1018
1019 #if 0
1020     printf("::: image # %d: '%s' ['%s']\n",
1021            i, image->token,
1022            getTokenFromImageID(i));
1023 #endif
1024
1025     set_graphic_parameters(i, image->parameter);
1026
1027     /* now check if no animation frames are outside of the loaded image */
1028
1029     if (graphic_info[i].bitmap == NULL)
1030       continue;         /* skip check for optional images that are undefined */
1031
1032     first_frame = 0;
1033     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
1034     if (src_x < 0 || src_y < 0 ||
1035         src_x + TILEX > src_bitmap->width ||
1036         src_y + TILEY > src_bitmap->height)
1037     {
1038       Error(ERR_RETURN_LINE, "-");
1039       Error(ERR_RETURN, "warning: error found in config file:");
1040       Error(ERR_RETURN, "- config file: '%s'",
1041             getImageConfigFilename());
1042       Error(ERR_RETURN, "- config token: '%s'",
1043             getTokenFromImageID(i));
1044       Error(ERR_RETURN, "- image file: '%s'",
1045             src_bitmap->source_filename);
1046       Error(ERR_RETURN,
1047             "error: first animation frame out of bounds (%d, %d)",
1048             src_x, src_y);
1049       Error(ERR_RETURN, "custom graphic rejected for this element/action");
1050
1051       if (i == fallback_graphic)
1052         Error(ERR_EXIT, "fatal error: no fallback graphic available");
1053
1054       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1055       Error(ERR_RETURN_LINE, "-");
1056
1057       set_graphic_parameters(i, fallback_image->default_parameter);
1058       graphic_info[i].bitmap = fallback_bitmap;
1059     }
1060
1061     last_frame = graphic_info[i].anim_frames - 1;
1062     getGraphicSource(i, last_frame, &src_bitmap, &src_x, &src_y);
1063     if (src_x < 0 || src_y < 0 ||
1064         src_x + TILEX > src_bitmap->width ||
1065         src_y + TILEY > src_bitmap->height)
1066     {
1067       Error(ERR_RETURN_LINE, "-");
1068       Error(ERR_RETURN, "warning: error found in config file:");
1069       Error(ERR_RETURN, "- config file: '%s'",
1070             getImageConfigFilename());
1071       Error(ERR_RETURN, "- config token: '%s'",
1072             getTokenFromImageID(i));
1073       Error(ERR_RETURN, "- image file: '%s'",
1074             src_bitmap->source_filename);
1075       Error(ERR_RETURN,
1076             "error: last animation frame (%d) out of bounds (%d, %d)",
1077             last_frame, src_x, src_y);
1078       Error(ERR_RETURN, "custom graphic rejected for this element/action");
1079
1080       if (i == fallback_graphic)
1081         Error(ERR_EXIT, "fatal error: no fallback graphic available");
1082
1083       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1084       Error(ERR_RETURN_LINE, "-");
1085
1086       set_graphic_parameters(i, fallback_image->default_parameter);
1087       graphic_info[i].bitmap = fallback_bitmap;
1088     }
1089
1090 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1091     /* currently we need only a tile clip mask from the first frame */
1092     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
1093
1094     if (copy_clipmask_gc == None)
1095     {
1096       clip_gc_values.graphics_exposures = False;
1097       clip_gc_valuemask = GCGraphicsExposures;
1098       copy_clipmask_gc = XCreateGC(display, src_bitmap->clip_mask,
1099                                    clip_gc_valuemask, &clip_gc_values);
1100     }
1101
1102     graphic_info[i].clip_mask =
1103       XCreatePixmap(display, window->drawable, TILEX, TILEY, 1);
1104
1105     src_pixmap = src_bitmap->clip_mask;
1106     XCopyArea(display, src_pixmap, graphic_info[i].clip_mask,
1107               copy_clipmask_gc, src_x, src_y, TILEX, TILEY, 0, 0);
1108
1109     clip_gc_values.graphics_exposures = False;
1110     clip_gc_values.clip_mask = graphic_info[i].clip_mask;
1111     clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
1112
1113     graphic_info[i].clip_gc =
1114       XCreateGC(display, window->drawable, clip_gc_valuemask, &clip_gc_values);
1115 #endif
1116   }
1117
1118 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1119   if (copy_clipmask_gc)
1120     XFreeGC(display, copy_clipmask_gc);
1121
1122   clipmasks_initialized = TRUE;
1123 #endif
1124 }
1125
1126 static void InitElementSoundInfo()
1127 {
1128   struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
1129   int num_property_mappings = getSoundListPropertyMappingSize();
1130   int i, j, act;
1131
1132   /* set values to -1 to identify later as "uninitialized" values */
1133   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1134     for (act = 0; act < NUM_ACTIONS; act++)
1135       element_info[i].sound[act] = -1;
1136
1137   /* initialize element/sound mapping from static configuration */
1138   for (i = 0; element_to_sound[i].element > -1; i++)
1139   {
1140     int element      = element_to_sound[i].element;
1141     int action       = element_to_sound[i].action;
1142     int sound        = element_to_sound[i].sound;
1143     boolean is_class = element_to_sound[i].is_class;
1144
1145     if (action < 0)
1146       action = ACTION_DEFAULT;
1147
1148     if (!is_class)
1149       element_info[element].sound[action] = sound;
1150     else
1151       for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1152         if (strcmp(element_info[j].class_name,
1153                    element_info[element].class_name) == 0)
1154           element_info[j].sound[action] = sound;
1155   }
1156
1157   /* initialize element class/sound mapping from dynamic configuration */
1158   for (i = 0; i < num_property_mappings; i++)
1159   {
1160     int element_class = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
1161     int action        = property_mapping[i].ext1_index;
1162     int sound         = property_mapping[i].artwork_index;
1163
1164     if (element_class < 0 || element_class >= MAX_NUM_ELEMENTS)
1165       continue;
1166
1167     if (action < 0)
1168       action = ACTION_DEFAULT;
1169
1170     for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1171       if (strcmp(element_info[j].class_name,
1172                  element_info[element_class].class_name) == 0)
1173         element_info[j].sound[action] = sound;
1174   }
1175
1176   /* initialize element/sound mapping from dynamic configuration */
1177   for (i = 0; i < num_property_mappings; i++)
1178   {
1179     int element = property_mapping[i].base_index;
1180     int action  = property_mapping[i].ext1_index;
1181     int sound   = property_mapping[i].artwork_index;
1182
1183     if (element >= MAX_NUM_ELEMENTS)
1184       continue;
1185
1186     if (action < 0)
1187       action = ACTION_DEFAULT;
1188
1189     element_info[element].sound[action] = sound;
1190   }
1191
1192   /* now set all '-1' values to element specific default values */
1193   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1194   {
1195     for (act = 0; act < NUM_ACTIONS; act++)
1196     {
1197       /* generic default action sound (defined by "[default]" directive) */
1198       int default_action_sound = element_info[EL_DEFAULT].sound[act];
1199
1200       /* look for special default action sound (classic game specific) */
1201       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].sound[act] != -1)
1202         default_action_sound = element_info[EL_BD_DEFAULT].sound[act];
1203       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].sound[act] != -1)
1204         default_action_sound = element_info[EL_SP_DEFAULT].sound[act];
1205       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].sound[act] != -1)
1206         default_action_sound = element_info[EL_SB_DEFAULT].sound[act];
1207
1208       /* !!! there's no such thing as a "default action sound" !!! */
1209 #if 0
1210       /* look for element specific default sound (independent from action) */
1211       if (element_info[i].sound[ACTION_DEFAULT] != -1)
1212         default_action_sound = element_info[i].sound[ACTION_DEFAULT];
1213 #endif
1214
1215       /* no sound for this specific action -- use default action sound */
1216       if (element_info[i].sound[act] == -1)
1217         element_info[i].sound[act] = default_action_sound;
1218     }
1219   }
1220 }
1221
1222 static void InitGameModeSoundInfo()
1223 {
1224   int i;
1225
1226   /* set values to -1 to identify later as "uninitialized" values */
1227   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1228     menu.sound[i] = -1;
1229
1230   /* initialize gamemode/sound mapping from static configuration */
1231   for (i = 0; gamemode_to_sound[i].sound > -1; i++)
1232   {
1233     int gamemode = gamemode_to_sound[i].gamemode;
1234     int sound    = gamemode_to_sound[i].sound;
1235
1236     if (gamemode < 0)
1237       gamemode = GAME_MODE_DEFAULT;
1238
1239     menu.sound[gamemode] = sound;
1240   }
1241
1242   /* now set all '-1' values to levelset specific default values */
1243   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1244     if (menu.sound[i] == -1)
1245       menu.sound[i] = menu.sound[GAME_MODE_DEFAULT];
1246
1247 #if 0
1248   /* TEST ONLY */
1249   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1250     if (menu.sound[i] != -1)
1251       printf("::: menu.sound[%d] == %d\n", i, menu.sound[i]);
1252 #endif
1253 }
1254
1255 static void set_sound_parameters(int sound, char **parameter_raw)
1256 {
1257   int parameter[NUM_SND_ARGS];
1258   int i;
1259
1260   /* get integer values from string parameters */
1261   for (i = 0; i < NUM_SND_ARGS; i++)
1262     parameter[i] =
1263       get_parameter_value(sound_config_suffix[i].token, parameter_raw[i],
1264                           sound_config_suffix[i].type);
1265
1266   /* explicit loop mode setting in configuration overrides default value */
1267   if (parameter[SND_ARG_MODE_LOOP] != ARG_UNDEFINED_VALUE)
1268     sound_info[sound].loop = parameter[SND_ARG_MODE_LOOP];
1269 }
1270
1271 static void InitSoundInfo()
1272 {
1273 #if 0
1274   struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
1275   int num_property_mappings = getSoundListPropertyMappingSize();
1276 #endif
1277   int *sound_effect_properties;
1278   int num_sounds = getSoundListSize();
1279   int i, j;
1280
1281   checked_free(sound_info);
1282
1283   sound_effect_properties = checked_calloc(num_sounds * sizeof(int));
1284   sound_info = checked_calloc(num_sounds * sizeof(struct SoundInfo));
1285
1286   /* initialize sound effect for all elements to "no sound" */
1287   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1288     for (j = 0; j < NUM_ACTIONS; j++)
1289       element_info[i].sound[j] = SND_UNDEFINED;
1290
1291   for (i = 0; i < num_sounds; i++)
1292   {
1293     struct FileInfo *sound = getSoundListEntry(i);
1294     int len_effect_text = strlen(sound->token);
1295
1296     sound_effect_properties[i] = ACTION_OTHER;
1297     sound_info[i].loop = FALSE;         /* default: play sound only once */
1298
1299 #if 0
1300     printf("::: sound %d: '%s'\n", i, sound->token);
1301 #endif
1302
1303     /* determine all loop sounds and identify certain sound classes */
1304
1305     for (j = 0; element_action_info[j].suffix; j++)
1306     {
1307       int len_action_text = strlen(element_action_info[j].suffix);
1308
1309       if (len_action_text < len_effect_text &&
1310           strcmp(&sound->token[len_effect_text - len_action_text],
1311                  element_action_info[j].suffix) == 0)
1312       {
1313         sound_effect_properties[i] = element_action_info[j].value;
1314         sound_info[i].loop = element_action_info[j].is_loop_sound;
1315
1316         break;
1317       }
1318     }
1319
1320 #if 0
1321     if (strcmp(sound->token, "custom_42") == 0)
1322       printf("::: '%s' -> %d\n", sound->token, sound_info[i].loop);
1323 #endif
1324
1325     /* associate elements and some selected sound actions */
1326
1327     for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1328     {
1329       if (element_info[j].class_name)
1330       {
1331         int len_class_text = strlen(element_info[j].class_name);
1332
1333         if (len_class_text + 1 < len_effect_text &&
1334             strncmp(sound->token,
1335                     element_info[j].class_name, len_class_text) == 0 &&
1336             sound->token[len_class_text] == '.')
1337         {
1338           int sound_action_value = sound_effect_properties[i];
1339
1340           element_info[j].sound[sound_action_value] = i;
1341         }
1342       }
1343     }
1344
1345     set_sound_parameters(i, sound->parameter);
1346   }
1347
1348   free(sound_effect_properties);
1349
1350 #if 0
1351   /* !!! now handled in InitElementSoundInfo() !!! */
1352   /* initialize element/sound mapping from dynamic configuration */
1353   for (i = 0; i < num_property_mappings; i++)
1354   {
1355     int element   = property_mapping[i].base_index;
1356     int action    = property_mapping[i].ext1_index;
1357     int sound     = property_mapping[i].artwork_index;
1358
1359     if (action < 0)
1360       action = ACTION_DEFAULT;
1361
1362     printf("::: %d: %d, %d, %d ['%s']\n",
1363            i, element, action, sound, element_info[element].token_name);
1364
1365     element_info[element].sound[action] = sound;
1366   }
1367 #endif
1368
1369 #if 0
1370   /* TEST ONLY */
1371   {
1372     int element = EL_CUSTOM_11;
1373     int j = 0;
1374
1375     while (element_action_info[j].suffix)
1376     {
1377       printf("element %d, sound action '%s'  == %d\n",
1378              element, element_action_info[j].suffix,
1379              element_info[element].sound[j]);
1380       j++;
1381     }
1382   }
1383
1384   PlaySoundLevelElementAction(0,0, EL_CUSTOM_11, ACTION_PUSHING);
1385 #endif
1386
1387 #if 0
1388   /* TEST ONLY */
1389   {
1390     int element = EL_SAND;
1391     int sound_action = ACTION_DIGGING;
1392     int j = 0;
1393
1394     while (element_action_info[j].suffix)
1395     {
1396       if (element_action_info[j].value == sound_action)
1397         printf("element %d, sound action '%s'  == %d\n",
1398                element, element_action_info[j].suffix,
1399                element_info[element].sound[sound_action]);
1400       j++;
1401     }
1402   }
1403 #endif
1404 }
1405
1406 static void InitGameModeMusicInfo()
1407 {
1408   struct PropertyMapping *property_mapping = getMusicListPropertyMapping();
1409   int num_property_mappings = getMusicListPropertyMappingSize();
1410   int default_levelset_music = -1;
1411   int i;
1412
1413   /* set values to -1 to identify later as "uninitialized" values */
1414   for (i = 0; i < MAX_LEVELS; i++)
1415     levelset.music[i] = -1;
1416   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1417     menu.music[i] = -1;
1418
1419   /* initialize gamemode/music mapping from static configuration */
1420   for (i = 0; gamemode_to_music[i].music > -1; i++)
1421   {
1422     int gamemode = gamemode_to_music[i].gamemode;
1423     int music    = gamemode_to_music[i].music;
1424
1425 #if 0
1426     printf("::: gamemode == %d, music == %d\n", gamemode, music);
1427 #endif
1428
1429     if (gamemode < 0)
1430       gamemode = GAME_MODE_DEFAULT;
1431
1432     menu.music[gamemode] = music;
1433   }
1434
1435   /* initialize gamemode/music mapping from dynamic configuration */
1436   for (i = 0; i < num_property_mappings; i++)
1437   {
1438     int prefix   = property_mapping[i].base_index;
1439     int gamemode = property_mapping[i].ext1_index;
1440     int level    = property_mapping[i].ext2_index;
1441     int music    = property_mapping[i].artwork_index;
1442
1443 #if 0
1444     printf("::: prefix == %d, gamemode == %d, level == %d, music == %d\n",
1445            prefix, gamemode, level, music);
1446 #endif
1447
1448     if (prefix < 0 || prefix >= NUM_MUSIC_PREFIXES)
1449       continue;
1450
1451     if (gamemode < 0)
1452       gamemode = GAME_MODE_DEFAULT;
1453
1454     /* level specific music only allowed for in-game music */
1455     if (level != -1 && gamemode == GAME_MODE_DEFAULT)
1456       gamemode = GAME_MODE_PLAYING;
1457
1458     if (level == -1)
1459     {
1460       level = 0;
1461       default_levelset_music = music;
1462     }
1463
1464     if (gamemode == GAME_MODE_PLAYING || gamemode == GAME_MODE_DEFAULT)
1465       levelset.music[level] = music;
1466     if (gamemode != GAME_MODE_PLAYING)
1467       menu.music[gamemode] = music;
1468   }
1469
1470   /* now set all '-1' values to menu specific default values */
1471   /* (undefined values of "levelset.music[]" might stay at "-1" to
1472      allow dynamic selection of music files from music directory!) */
1473   for (i = 0; i < MAX_LEVELS; i++)
1474     if (levelset.music[i] == -1)
1475       levelset.music[i] = default_levelset_music;
1476   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1477     if (menu.music[i] == -1)
1478       menu.music[i] = menu.music[GAME_MODE_DEFAULT];
1479
1480 #if 0
1481   /* TEST ONLY */
1482   for (i = 0; i < MAX_LEVELS; i++)
1483     if (levelset.music[i] != -1)
1484       printf("::: levelset.music[%d] == %d\n", i, levelset.music[i]);
1485   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1486     if (menu.music[i] != -1)
1487       printf("::: menu.music[%d] == %d\n", i, menu.music[i]);
1488 #endif
1489 }
1490
1491 static void set_music_parameters(int music, char **parameter_raw)
1492 {
1493   int parameter[NUM_MUS_ARGS];
1494   int i;
1495
1496   /* get integer values from string parameters */
1497   for (i = 0; i < NUM_MUS_ARGS; i++)
1498     parameter[i] =
1499       get_parameter_value(music_config_suffix[i].token, parameter_raw[i],
1500                           music_config_suffix[i].type);
1501
1502   /* explicit loop mode setting in configuration overrides default value */
1503   if (parameter[MUS_ARG_MODE_LOOP] != ARG_UNDEFINED_VALUE)
1504     music_info[music].loop = parameter[MUS_ARG_MODE_LOOP];
1505 }
1506
1507 static void InitMusicInfo()
1508 {
1509   int num_music = getMusicListSize();
1510   int i, j;
1511
1512   checked_free(music_info);
1513
1514   music_info = checked_calloc(num_music * sizeof(struct MusicInfo));
1515
1516   for (i = 0; i < num_music; i++)
1517   {
1518     struct FileInfo *music = getMusicListEntry(i);
1519     int len_music_text = strlen(music->token);
1520
1521     music_info[i].loop = TRUE;          /* default: play music in loop mode */
1522
1523     /* determine all loop music */
1524
1525     for (j = 0; music_prefix_info[j].prefix; j++)
1526     {
1527       int len_prefix_text = strlen(music_prefix_info[j].prefix);
1528
1529       if (len_prefix_text < len_music_text &&
1530           strncmp(music->token,
1531                   music_prefix_info[j].prefix, len_prefix_text) == 0)
1532       {
1533         music_info[i].loop = music_prefix_info[j].is_loop_music;
1534
1535         break;
1536       }
1537     }
1538
1539     set_music_parameters(i, music->parameter);
1540   }
1541 }
1542
1543 static void ReinitializeGraphics()
1544 {
1545   InitGraphicInfo();                    /* graphic properties mapping */
1546   InitElementGraphicInfo();             /* element game graphic mapping */
1547   InitElementSpecialGraphicInfo();      /* element special graphic mapping */
1548
1549   InitElementSmallImages();             /* create editor and preview images */
1550   InitFontGraphicInfo();                /* initialize text drawing functions */
1551
1552   SetMainBackgroundImage(IMG_BACKGROUND);
1553   SetDoorBackgroundImage(IMG_BACKGROUND_DOOR);
1554
1555   InitGadgets();
1556   InitToons();
1557 }
1558
1559 static void ReinitializeSounds()
1560 {
1561   InitSoundInfo();              /* sound properties mapping */
1562   InitElementSoundInfo();       /* element game sound mapping */
1563   InitGameModeSoundInfo();      /* game mode sound mapping */
1564
1565   InitPlayLevelSound();         /* internal game sound settings */
1566 }
1567
1568 static void ReinitializeMusic()
1569 {
1570   InitMusicInfo();              /* music properties mapping */
1571   InitGameModeMusicInfo();      /* game mode music mapping */
1572 }
1573
1574 static int get_special_property_bit(int element, int property_bit_nr)
1575 {
1576   struct PropertyBitInfo
1577   {
1578     int element;
1579     int bit_nr;
1580   };
1581
1582   static struct PropertyBitInfo pb_can_move_into_acid[] =
1583   {
1584     /* the player may be able fall into acid when gravity is activated */
1585     { EL_PLAYER_1,              0       },
1586     { EL_PLAYER_2,              0       },
1587     { EL_PLAYER_3,              0       },
1588     { EL_PLAYER_4,              0       },
1589     { EL_SP_MURPHY,             0       },
1590     { EL_SOKOBAN_FIELD_PLAYER,  0       },
1591
1592     /* all element that can move may be able to also move into acid */
1593     { EL_BUG,                   1       },
1594     { EL_BUG_LEFT,              1       },
1595     { EL_BUG_RIGHT,             1       },
1596     { EL_BUG_UP,                1       },
1597     { EL_BUG_DOWN,              1       },
1598     { EL_SPACESHIP,             2       },
1599     { EL_SPACESHIP_LEFT,        2       },
1600     { EL_SPACESHIP_RIGHT,       2       },
1601     { EL_SPACESHIP_UP,          2       },
1602     { EL_SPACESHIP_DOWN,        2       },
1603     { EL_BD_BUTTERFLY,          3       },
1604     { EL_BD_BUTTERFLY_LEFT,     3       },
1605     { EL_BD_BUTTERFLY_RIGHT,    3       },
1606     { EL_BD_BUTTERFLY_UP,       3       },
1607     { EL_BD_BUTTERFLY_DOWN,     3       },
1608     { EL_BD_FIREFLY,            4       },
1609     { EL_BD_FIREFLY_LEFT,       4       },
1610     { EL_BD_FIREFLY_RIGHT,      4       },
1611     { EL_BD_FIREFLY_UP,         4       },
1612     { EL_BD_FIREFLY_DOWN,       4       },
1613     { EL_YAMYAM,                5       },
1614     { EL_DARK_YAMYAM,           6       },
1615     { EL_ROBOT,                 7       },
1616     { EL_PACMAN,                8       },
1617     { EL_PACMAN_LEFT,           8       },
1618     { EL_PACMAN_RIGHT,          8       },
1619     { EL_PACMAN_UP,             8       },
1620     { EL_PACMAN_DOWN,           8       },
1621     { EL_MOLE,                  9       },
1622     { EL_MOLE_LEFT,             9       },
1623     { EL_MOLE_RIGHT,            9       },
1624     { EL_MOLE_UP,               9       },
1625     { EL_MOLE_DOWN,             9       },
1626     { EL_PENGUIN,               10      },
1627     { EL_PIG,                   11      },
1628     { EL_DRAGON,                12      },
1629     { EL_SATELLITE,             13      },
1630     { EL_SP_SNIKSNAK,           14      },
1631     { EL_SP_ELECTRON,           15      },
1632     { EL_BALLOON,               16      },
1633     { EL_SPRING,                17      },
1634
1635     { -1,                       -1      },
1636   };
1637
1638   static struct PropertyBitInfo pb_dont_collide_with[] =
1639   {
1640     { EL_SP_SNIKSNAK,           0       },
1641     { EL_SP_ELECTRON,           1       },
1642
1643     { -1,                       -1      },
1644   };
1645
1646   static struct
1647   {
1648     int bit_nr;
1649     struct PropertyBitInfo *pb_info;
1650   } pb_definition[] =
1651   {
1652     { EP_CAN_MOVE_INTO_ACID,    pb_can_move_into_acid   },
1653     { EP_DONT_COLLIDE_WITH,     pb_dont_collide_with    },
1654
1655     { -1,                       NULL                    },
1656   };
1657
1658   struct PropertyBitInfo *pb_info = NULL;
1659   int i;
1660
1661   for (i = 0; pb_definition[i].bit_nr != -1; i++)
1662     if (pb_definition[i].bit_nr == property_bit_nr)
1663       pb_info = pb_definition[i].pb_info;
1664
1665   if (pb_info == NULL)
1666     return -1;
1667
1668   for (i = 0; pb_info[i].element != -1; i++)
1669     if (pb_info[i].element == element)
1670       return pb_info[i].bit_nr;
1671
1672   return -1;
1673 }
1674
1675 #if 1
1676 void setBitfieldProperty(int *bitfield, int property_bit_nr, int element,
1677                          boolean property_value)
1678 {
1679   int bit_nr = get_special_property_bit(element, property_bit_nr);
1680
1681   if (bit_nr > -1)
1682   {
1683     if (property_value)
1684       *bitfield |=  (1 << bit_nr);
1685     else
1686       *bitfield &= ~(1 << bit_nr);
1687   }
1688 }
1689
1690 boolean getBitfieldProperty(int *bitfield, int property_bit_nr, int element)
1691 {
1692   int bit_nr = get_special_property_bit(element, property_bit_nr);
1693
1694   if (bit_nr > -1)
1695     return ((*bitfield & (1 << bit_nr)) != 0);
1696
1697   return FALSE;
1698 }
1699
1700 #else
1701
1702 void setMoveIntoAcidProperty(struct LevelInfo *level, int element, boolean set)
1703 {
1704   int bit_nr = get_special_property_bit(element, EP_CAN_MOVE_INTO_ACID);
1705
1706   if (bit_nr > -1)
1707   {
1708     level->can_move_into_acid_bits &= ~(1 << bit_nr);
1709
1710     if (set)
1711       level->can_move_into_acid_bits |= (1 << bit_nr);
1712   }
1713 }
1714
1715 boolean getMoveIntoAcidProperty(struct LevelInfo *level, int element)
1716 {
1717   int bit_nr = get_special_property_bit(element, EP_CAN_MOVE_INTO_ACID);
1718
1719   if (bit_nr > -1)
1720     return ((level->can_move_into_acid_bits & (1 << bit_nr)) != 0);
1721
1722   return FALSE;
1723 }
1724 #endif
1725
1726 void InitElementPropertiesStatic()
1727 {
1728   static int ep_diggable[] =
1729   {
1730     EL_SAND,
1731     EL_SP_BASE,
1732     EL_SP_BUGGY_BASE,
1733     EL_SP_BUGGY_BASE_ACTIVATING,
1734     EL_TRAP,
1735     EL_INVISIBLE_SAND,
1736     EL_INVISIBLE_SAND_ACTIVE,
1737
1738     /* !!! currently not diggable, but handled by 'ep_dont_run_into' !!! */
1739     /* (if amoeba can grow into anything diggable, maybe keep these out) */
1740 #if 0
1741     EL_LANDMINE,
1742     EL_TRAP_ACTIVE,
1743     EL_SP_BUGGY_BASE_ACTIVE,
1744 #endif
1745     -1
1746   };
1747
1748   static int ep_collectible_only[] =
1749   {
1750     EL_BD_DIAMOND,
1751     EL_EMERALD,
1752     EL_DIAMOND,
1753     EL_EMERALD_YELLOW,
1754     EL_EMERALD_RED,
1755     EL_EMERALD_PURPLE,
1756     EL_KEY_1,
1757     EL_KEY_2,
1758     EL_KEY_3,
1759     EL_KEY_4,
1760     EL_EM_KEY_1,
1761     EL_EM_KEY_2,
1762     EL_EM_KEY_3,
1763     EL_EM_KEY_4,
1764     EL_DYNAMITE,
1765     EL_DYNABOMB_INCREASE_NUMBER,
1766     EL_DYNABOMB_INCREASE_SIZE,
1767     EL_DYNABOMB_INCREASE_POWER,
1768     EL_SP_INFOTRON,
1769     EL_SP_DISK_RED,
1770     EL_PEARL,
1771     EL_CRYSTAL,
1772     EL_KEY_WHITE,
1773     EL_SHIELD_NORMAL,
1774     EL_SHIELD_DEADLY,
1775     EL_EXTRA_TIME,
1776     EL_ENVELOPE_1,
1777     EL_ENVELOPE_2,
1778     EL_ENVELOPE_3,
1779     EL_ENVELOPE_4,
1780     EL_SPEED_PILL,
1781     -1
1782   };
1783
1784   static int ep_dont_run_into[] =
1785   {
1786     /* same elements as in 'ep_dont_touch' */
1787     EL_BUG,
1788     EL_SPACESHIP,
1789     EL_BD_BUTTERFLY,
1790     EL_BD_FIREFLY,
1791
1792     /* same elements as in 'ep_dont_collide_with' */
1793     EL_YAMYAM,
1794     EL_DARK_YAMYAM,
1795     EL_ROBOT,
1796     EL_PACMAN,
1797     EL_SP_SNIKSNAK,
1798     EL_SP_ELECTRON,
1799
1800     /* new elements */
1801     EL_AMOEBA_DROP,
1802     EL_ACID,
1803
1804     /* !!! maybe this should better be handled by 'ep_diggable' !!! */
1805 #if 1
1806     EL_LANDMINE,
1807     EL_TRAP_ACTIVE,
1808     EL_SP_BUGGY_BASE_ACTIVE,
1809 #endif
1810     -1
1811   };
1812
1813   static int ep_dont_collide_with[] =
1814   {
1815     /* same elements as in 'ep_dont_touch' */
1816     EL_BUG,
1817     EL_SPACESHIP,
1818     EL_BD_BUTTERFLY,
1819     EL_BD_FIREFLY,
1820
1821     /* new elements */
1822     EL_YAMYAM,
1823     EL_DARK_YAMYAM,
1824     EL_ROBOT,
1825     EL_PACMAN,
1826     EL_SP_SNIKSNAK,
1827     EL_SP_ELECTRON,
1828     -1
1829   };
1830
1831   static int ep_dont_touch[] =
1832   {
1833     EL_BUG,
1834     EL_SPACESHIP,
1835     EL_BD_BUTTERFLY,
1836     EL_BD_FIREFLY,
1837     -1
1838   };
1839
1840   static int ep_indestructible[] =
1841   {
1842     EL_STEELWALL,
1843     EL_ACID,
1844     EL_ACID_POOL_TOPLEFT,
1845     EL_ACID_POOL_TOPRIGHT,
1846     EL_ACID_POOL_BOTTOMLEFT,
1847     EL_ACID_POOL_BOTTOM,
1848     EL_ACID_POOL_BOTTOMRIGHT,
1849     EL_SP_HARDWARE_GRAY,
1850     EL_SP_HARDWARE_GREEN,
1851     EL_SP_HARDWARE_BLUE,
1852     EL_SP_HARDWARE_RED,
1853     EL_SP_HARDWARE_YELLOW,
1854     EL_SP_HARDWARE_BASE_1,
1855     EL_SP_HARDWARE_BASE_2,
1856     EL_SP_HARDWARE_BASE_3,
1857     EL_SP_HARDWARE_BASE_4,
1858     EL_SP_HARDWARE_BASE_5,
1859     EL_SP_HARDWARE_BASE_6,
1860     EL_INVISIBLE_STEELWALL,
1861     EL_INVISIBLE_STEELWALL_ACTIVE,
1862     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1863     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1864     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1865     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1866     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1867     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1868     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1869     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1870     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1871     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1872     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1873     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1874     EL_LIGHT_SWITCH,
1875     EL_LIGHT_SWITCH_ACTIVE,
1876     EL_SIGN_EXCLAMATION,
1877     EL_SIGN_RADIOACTIVITY,
1878     EL_SIGN_STOP,
1879     EL_SIGN_WHEELCHAIR,
1880     EL_SIGN_PARKING,
1881     EL_SIGN_ONEWAY,
1882     EL_SIGN_HEART,
1883     EL_SIGN_TRIANGLE,
1884     EL_SIGN_ROUND,
1885     EL_SIGN_EXIT,
1886     EL_SIGN_YINYANG,
1887     EL_SIGN_OTHER,
1888     EL_STEELWALL_SLIPPERY,
1889     EL_EMC_STEELWALL_1,
1890     EL_EMC_STEELWALL_2,
1891     EL_EMC_STEELWALL_3,
1892     EL_EMC_STEELWALL_4,
1893     EL_CRYSTAL,
1894     EL_GATE_1,
1895     EL_GATE_2,
1896     EL_GATE_3,
1897     EL_GATE_4,
1898     EL_GATE_1_GRAY,
1899     EL_GATE_2_GRAY,
1900     EL_GATE_3_GRAY,
1901     EL_GATE_4_GRAY,
1902     EL_EM_GATE_1,
1903     EL_EM_GATE_2,
1904     EL_EM_GATE_3,
1905     EL_EM_GATE_4,
1906     EL_EM_GATE_1_GRAY,
1907     EL_EM_GATE_2_GRAY,
1908     EL_EM_GATE_3_GRAY,
1909     EL_EM_GATE_4_GRAY,
1910     EL_SWITCHGATE_OPEN,
1911     EL_SWITCHGATE_OPENING,
1912     EL_SWITCHGATE_CLOSED,
1913     EL_SWITCHGATE_CLOSING,
1914 #if 0
1915     EL_SWITCHGATE_SWITCH_UP,
1916     EL_SWITCHGATE_SWITCH_DOWN,
1917 #endif
1918     EL_TIMEGATE_OPEN,
1919     EL_TIMEGATE_OPENING,
1920     EL_TIMEGATE_CLOSED,
1921     EL_TIMEGATE_CLOSING,
1922 #if 0
1923     EL_TIMEGATE_SWITCH,
1924     EL_TIMEGATE_SWITCH_ACTIVE,
1925 #endif
1926     EL_TUBE_ANY,
1927     EL_TUBE_VERTICAL,
1928     EL_TUBE_HORIZONTAL,
1929     EL_TUBE_VERTICAL_LEFT,
1930     EL_TUBE_VERTICAL_RIGHT,
1931     EL_TUBE_HORIZONTAL_UP,
1932     EL_TUBE_HORIZONTAL_DOWN,
1933     EL_TUBE_LEFT_UP,
1934     EL_TUBE_LEFT_DOWN,
1935     EL_TUBE_RIGHT_UP,
1936     EL_TUBE_RIGHT_DOWN,
1937     -1
1938   };
1939
1940   static int ep_slippery[] =
1941   {
1942     EL_WALL_SLIPPERY,
1943     EL_BD_WALL,
1944     EL_ROCK,
1945     EL_BD_ROCK,
1946     EL_EMERALD,
1947     EL_BD_DIAMOND,
1948     EL_EMERALD_YELLOW,
1949     EL_EMERALD_RED,
1950     EL_EMERALD_PURPLE,
1951     EL_DIAMOND,
1952     EL_BOMB,
1953     EL_NUT,
1954     EL_ROBOT_WHEEL_ACTIVE,
1955     EL_ROBOT_WHEEL,
1956     EL_TIME_ORB_FULL,
1957     EL_TIME_ORB_EMPTY,
1958     EL_LAMP_ACTIVE,
1959     EL_LAMP,
1960     EL_ACID_POOL_TOPLEFT,
1961     EL_ACID_POOL_TOPRIGHT,
1962     EL_SATELLITE,
1963     EL_SP_ZONK,
1964     EL_SP_INFOTRON,
1965     EL_SP_CHIP_SINGLE,
1966     EL_SP_CHIP_LEFT,
1967     EL_SP_CHIP_RIGHT,
1968     EL_SP_CHIP_TOP,
1969     EL_SP_CHIP_BOTTOM,
1970     EL_SPEED_PILL,
1971     EL_STEELWALL_SLIPPERY,
1972     EL_PEARL,
1973     EL_CRYSTAL,
1974     -1
1975   };
1976
1977   static int ep_can_change[] =
1978   {
1979     -1
1980   };
1981
1982   static int ep_can_move[] =
1983   {
1984     /* same elements as in 'pb_can_move_into_acid' */
1985     EL_BUG,
1986     EL_SPACESHIP,
1987     EL_BD_BUTTERFLY,
1988     EL_BD_FIREFLY,
1989     EL_YAMYAM,
1990     EL_DARK_YAMYAM,
1991     EL_ROBOT,
1992     EL_PACMAN,
1993     EL_MOLE,
1994     EL_PENGUIN,
1995     EL_PIG,
1996     EL_DRAGON,
1997     EL_SATELLITE,
1998     EL_SP_SNIKSNAK,
1999     EL_SP_ELECTRON,
2000     EL_BALLOON,
2001     EL_SPRING,
2002     -1
2003   };
2004
2005   static int ep_can_fall[] =
2006   {
2007     EL_ROCK,
2008     EL_BD_ROCK,
2009     EL_EMERALD,
2010     EL_BD_DIAMOND,
2011     EL_EMERALD_YELLOW,
2012     EL_EMERALD_RED,
2013     EL_EMERALD_PURPLE,
2014     EL_DIAMOND,
2015     EL_BOMB,
2016     EL_NUT,
2017     EL_AMOEBA_DROP,
2018     EL_QUICKSAND_FULL,
2019     EL_MAGIC_WALL_FULL,
2020     EL_BD_MAGIC_WALL_FULL,
2021     EL_TIME_ORB_FULL,
2022     EL_TIME_ORB_EMPTY,
2023     EL_SP_ZONK,
2024     EL_SP_INFOTRON,
2025     EL_SP_DISK_ORANGE,
2026     EL_PEARL,
2027     EL_CRYSTAL,
2028     EL_SPRING,
2029     EL_DX_SUPABOMB,
2030     -1
2031   };
2032
2033   static int ep_can_smash_player[] =
2034   {
2035     EL_ROCK,
2036     EL_BD_ROCK,
2037     EL_EMERALD,
2038     EL_BD_DIAMOND,
2039     EL_EMERALD_YELLOW,
2040     EL_EMERALD_RED,
2041     EL_EMERALD_PURPLE,
2042     EL_DIAMOND,
2043     EL_BOMB,
2044     EL_NUT,
2045     EL_AMOEBA_DROP,
2046     EL_TIME_ORB_FULL,
2047     EL_TIME_ORB_EMPTY,
2048     EL_SP_ZONK,
2049     EL_SP_INFOTRON,
2050     EL_SP_DISK_ORANGE,
2051     EL_PEARL,
2052     EL_CRYSTAL,
2053     EL_SPRING,
2054     EL_DX_SUPABOMB,
2055     -1
2056   };
2057
2058   static int ep_can_smash_enemies[] =
2059   {
2060     EL_ROCK,
2061     EL_BD_ROCK,
2062     EL_SP_ZONK,
2063     -1
2064   };
2065
2066   static int ep_can_smash_everything[] =
2067   {
2068     EL_ROCK,
2069     EL_BD_ROCK,
2070     EL_SP_ZONK,
2071     -1
2072   };
2073
2074   static int ep_can_explode_by_fire[] =
2075   {
2076     /* same elements as in 'ep_can_explode_impact' */
2077     EL_BOMB,
2078     EL_SP_DISK_ORANGE,
2079     EL_DX_SUPABOMB,
2080
2081     /* same elements as in 'ep_can_explode_smashed' */
2082     EL_SATELLITE,
2083     EL_PIG,
2084     EL_DRAGON,
2085     EL_MOLE,
2086
2087     /* new elements */
2088     EL_DYNAMITE_ACTIVE,
2089     EL_DYNAMITE,
2090     EL_DYNABOMB_PLAYER_1_ACTIVE,
2091     EL_DYNABOMB_PLAYER_2_ACTIVE,
2092     EL_DYNABOMB_PLAYER_3_ACTIVE,
2093     EL_DYNABOMB_PLAYER_4_ACTIVE,
2094     EL_DYNABOMB_INCREASE_NUMBER,
2095     EL_DYNABOMB_INCREASE_SIZE,
2096     EL_DYNABOMB_INCREASE_POWER,
2097     EL_SP_DISK_RED_ACTIVE,
2098     EL_BUG,
2099     EL_PENGUIN,
2100     EL_SP_DISK_RED,
2101     EL_SP_DISK_YELLOW,
2102     EL_SP_SNIKSNAK,
2103     EL_SP_ELECTRON,
2104 #if 0
2105     EL_BLACK_ORB,
2106 #endif
2107     -1
2108   };
2109
2110   static int ep_can_explode_smashed[] =
2111   {
2112     /* same elements as in 'ep_can_explode_impact' */
2113     EL_BOMB,
2114     EL_SP_DISK_ORANGE,
2115     EL_DX_SUPABOMB,
2116
2117     /* new elements */
2118     EL_SATELLITE,
2119     EL_PIG,
2120     EL_DRAGON,
2121     EL_MOLE,
2122     -1
2123   };
2124
2125   static int ep_can_explode_impact[] =
2126   {
2127     EL_BOMB,
2128     EL_SP_DISK_ORANGE,
2129     EL_DX_SUPABOMB,
2130     -1
2131   };
2132
2133   static int ep_walkable_over[] =
2134   {
2135     EL_EMPTY_SPACE,
2136     EL_SP_EMPTY_SPACE,
2137     EL_SOKOBAN_FIELD_EMPTY,
2138     EL_EXIT_OPEN,
2139     EL_SP_EXIT_OPEN,
2140     EL_SP_EXIT_OPENING,
2141     EL_GATE_1,
2142     EL_GATE_2,
2143     EL_GATE_3,
2144     EL_GATE_4,
2145     EL_GATE_1_GRAY,
2146     EL_GATE_2_GRAY,
2147     EL_GATE_3_GRAY,
2148     EL_GATE_4_GRAY,
2149     EL_PENGUIN,
2150     EL_PIG,
2151     EL_DRAGON,
2152     -1
2153   };
2154
2155   static int ep_walkable_inside[] =
2156   {
2157     EL_TUBE_ANY,
2158     EL_TUBE_VERTICAL,
2159     EL_TUBE_HORIZONTAL,
2160     EL_TUBE_VERTICAL_LEFT,
2161     EL_TUBE_VERTICAL_RIGHT,
2162     EL_TUBE_HORIZONTAL_UP,
2163     EL_TUBE_HORIZONTAL_DOWN,
2164     EL_TUBE_LEFT_UP,
2165     EL_TUBE_LEFT_DOWN,
2166     EL_TUBE_RIGHT_UP,
2167     EL_TUBE_RIGHT_DOWN,
2168     -1
2169   };
2170
2171   static int ep_walkable_under[] =
2172   {
2173     -1
2174   };
2175
2176   static int ep_passable_over[] =
2177   {
2178     EL_EM_GATE_1,
2179     EL_EM_GATE_2,
2180     EL_EM_GATE_3,
2181     EL_EM_GATE_4,
2182     EL_EM_GATE_1_GRAY,
2183     EL_EM_GATE_2_GRAY,
2184     EL_EM_GATE_3_GRAY,
2185     EL_EM_GATE_4_GRAY,
2186     EL_SWITCHGATE_OPEN,
2187     EL_TIMEGATE_OPEN,
2188     -1
2189   };
2190
2191   static int ep_passable_inside[] =
2192   {
2193     EL_SP_PORT_LEFT,
2194     EL_SP_PORT_RIGHT,
2195     EL_SP_PORT_UP,
2196     EL_SP_PORT_DOWN,
2197     EL_SP_PORT_HORIZONTAL,
2198     EL_SP_PORT_VERTICAL,
2199     EL_SP_PORT_ANY,
2200     EL_SP_GRAVITY_PORT_LEFT,
2201     EL_SP_GRAVITY_PORT_RIGHT,
2202     EL_SP_GRAVITY_PORT_UP,
2203     EL_SP_GRAVITY_PORT_DOWN,
2204     -1
2205   };
2206
2207   static int ep_passable_under[] =
2208   {
2209     -1
2210   };
2211
2212   static int ep_droppable[] =
2213   {
2214     -1
2215   };
2216
2217   static int ep_can_explode_1x1[] =
2218   {
2219     -1
2220   };
2221
2222   static int ep_pushable[] =
2223   {
2224     EL_ROCK,
2225     EL_BOMB,
2226     EL_DX_SUPABOMB,
2227     EL_NUT,
2228     EL_TIME_ORB_EMPTY,
2229     EL_SP_ZONK,
2230     EL_SP_DISK_ORANGE,
2231     EL_SPRING,
2232     EL_BD_ROCK,
2233     EL_SOKOBAN_OBJECT,
2234     EL_SOKOBAN_FIELD_FULL,
2235     EL_SATELLITE,
2236     EL_SP_DISK_YELLOW,
2237     EL_BALLOON,
2238     -1
2239   };
2240
2241   static int ep_can_explode_cross[] =
2242   {
2243     -1
2244   };
2245
2246   static int ep_protected[] =
2247   {
2248     EL_EM_GATE_1,
2249     EL_EM_GATE_2,
2250     EL_EM_GATE_3,
2251     EL_EM_GATE_4,
2252     EL_EM_GATE_1_GRAY,
2253     EL_EM_GATE_2_GRAY,
2254     EL_EM_GATE_3_GRAY,
2255     EL_EM_GATE_4_GRAY,
2256     EL_SWITCHGATE_OPEN,
2257     EL_TIMEGATE_OPEN,
2258     -1
2259   };
2260
2261   static int ep_throwable[] =
2262   {
2263     -1
2264   };
2265
2266   static int ep_player[] =
2267   {
2268     EL_PLAYER_1,
2269     EL_PLAYER_2,
2270     EL_PLAYER_3,
2271     EL_PLAYER_4,
2272     EL_SP_MURPHY,
2273     EL_SOKOBAN_FIELD_PLAYER,
2274     -1
2275   };
2276
2277   static int ep_can_pass_magic_wall[] =
2278   {
2279     EL_ROCK,
2280     EL_BD_ROCK,
2281     EL_EMERALD,
2282     EL_BD_DIAMOND,
2283     EL_EMERALD_YELLOW,
2284     EL_EMERALD_RED,
2285     EL_EMERALD_PURPLE,
2286     EL_DIAMOND,
2287     -1
2288   };
2289
2290   static int ep_switchable[] =
2291   {
2292     EL_ROBOT_WHEEL,
2293     EL_SP_TERMINAL,
2294     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2295     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2296     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2297     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2298     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2299     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2300     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2301     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2302     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2303     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2304     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2305     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2306     EL_SWITCHGATE_SWITCH_UP,
2307     EL_SWITCHGATE_SWITCH_DOWN,
2308     EL_LIGHT_SWITCH,
2309     EL_LIGHT_SWITCH_ACTIVE,
2310     EL_TIMEGATE_SWITCH,
2311     EL_BALLOON_SWITCH_LEFT,
2312     EL_BALLOON_SWITCH_RIGHT,
2313     EL_BALLOON_SWITCH_UP,
2314     EL_BALLOON_SWITCH_DOWN,
2315     EL_BALLOON_SWITCH_ANY,
2316     EL_LAMP,
2317     EL_TIME_ORB_FULL,
2318     -1
2319   };
2320
2321   static int ep_bd_element[] =
2322   {
2323     EL_EMPTY,
2324     EL_SAND,
2325     EL_WALL_SLIPPERY,
2326     EL_BD_WALL,
2327     EL_ROCK,
2328     EL_BD_ROCK,
2329     EL_BD_DIAMOND,
2330     EL_BD_MAGIC_WALL,
2331     EL_EXIT_CLOSED,
2332     EL_EXIT_OPEN,
2333     EL_STEELWALL,
2334     EL_PLAYER_1,
2335     EL_PLAYER_2,
2336     EL_PLAYER_3,
2337     EL_PLAYER_4,
2338     EL_BD_FIREFLY,
2339     EL_BD_FIREFLY_1,
2340     EL_BD_FIREFLY_2,
2341     EL_BD_FIREFLY_3,
2342     EL_BD_FIREFLY_4,
2343     EL_BD_BUTTERFLY,
2344     EL_BD_BUTTERFLY_1,
2345     EL_BD_BUTTERFLY_2,
2346     EL_BD_BUTTERFLY_3,
2347     EL_BD_BUTTERFLY_4,
2348     EL_BD_AMOEBA,
2349     EL_CHAR_QUESTION,
2350     EL_UNKNOWN,
2351     -1
2352   };
2353
2354   static int ep_sp_element[] =
2355   {
2356     /* should always be valid */
2357     EL_EMPTY,
2358
2359     EL_SP_EMPTY,
2360     EL_SP_ZONK,
2361     EL_SP_BASE,
2362     EL_SP_MURPHY,
2363     EL_SP_INFOTRON,
2364     EL_SP_CHIP_SINGLE,
2365     EL_SP_HARDWARE_GRAY,
2366     EL_SP_EXIT_CLOSED,
2367     EL_SP_EXIT_OPEN,
2368     EL_SP_DISK_ORANGE,
2369     EL_SP_PORT_RIGHT,
2370     EL_SP_PORT_DOWN,
2371     EL_SP_PORT_LEFT,
2372     EL_SP_PORT_UP,
2373     EL_SP_GRAVITY_PORT_RIGHT,
2374     EL_SP_GRAVITY_PORT_DOWN,
2375     EL_SP_GRAVITY_PORT_LEFT,
2376     EL_SP_GRAVITY_PORT_UP,
2377     EL_SP_SNIKSNAK,
2378     EL_SP_DISK_YELLOW,
2379     EL_SP_TERMINAL,
2380     EL_SP_DISK_RED,
2381     EL_SP_PORT_VERTICAL,
2382     EL_SP_PORT_HORIZONTAL,
2383     EL_SP_PORT_ANY,
2384     EL_SP_ELECTRON,
2385     EL_SP_BUGGY_BASE,
2386     EL_SP_CHIP_LEFT,
2387     EL_SP_CHIP_RIGHT,
2388     EL_SP_HARDWARE_BASE_1,
2389     EL_SP_HARDWARE_GREEN,
2390     EL_SP_HARDWARE_BLUE,
2391     EL_SP_HARDWARE_RED,
2392     EL_SP_HARDWARE_YELLOW,
2393     EL_SP_HARDWARE_BASE_2,
2394     EL_SP_HARDWARE_BASE_3,
2395     EL_SP_HARDWARE_BASE_4,
2396     EL_SP_HARDWARE_BASE_5,
2397     EL_SP_HARDWARE_BASE_6,
2398     EL_SP_CHIP_TOP,
2399     EL_SP_CHIP_BOTTOM,
2400     /* additional elements that appeared in newer Supaplex levels */
2401     EL_INVISIBLE_WALL,
2402     /* more than one murphy in a level results in an inactive clone */
2403     EL_SP_MURPHY_CLONE,
2404     /* runtime elements*/
2405     EL_SP_DISK_RED_ACTIVE,
2406     EL_SP_TERMINAL_ACTIVE,
2407     EL_SP_BUGGY_BASE_ACTIVATING,
2408     EL_SP_BUGGY_BASE_ACTIVE,
2409     EL_SP_EXIT_OPENING,
2410     EL_SP_EXIT_CLOSING,
2411     -1
2412   };
2413
2414   static int ep_sb_element[] =
2415   {
2416     EL_EMPTY,
2417     EL_STEELWALL,
2418     EL_SOKOBAN_OBJECT,
2419     EL_SOKOBAN_FIELD_EMPTY,
2420     EL_SOKOBAN_FIELD_FULL,
2421     EL_SOKOBAN_FIELD_PLAYER,
2422     EL_PLAYER_1,
2423     EL_PLAYER_2,
2424     EL_PLAYER_3,
2425     EL_PLAYER_4,
2426     EL_INVISIBLE_STEELWALL,
2427     -1
2428   };
2429
2430   static int ep_gem[] =
2431   {
2432     EL_BD_DIAMOND,
2433     EL_EMERALD,
2434     EL_EMERALD_YELLOW,
2435     EL_EMERALD_RED,
2436     EL_EMERALD_PURPLE,
2437     EL_DIAMOND,
2438     -1
2439   };
2440
2441   static int ep_food_dark_yamyam[] =
2442   {
2443     EL_SAND,
2444     EL_BUG,
2445     EL_SPACESHIP,
2446     EL_BD_BUTTERFLY,
2447     EL_BD_FIREFLY,
2448     EL_YAMYAM,
2449     EL_ROBOT,
2450     EL_PACMAN,
2451     EL_AMOEBA_DROP,
2452     EL_AMOEBA_DEAD,
2453     EL_AMOEBA_WET,
2454     EL_AMOEBA_DRY,
2455     EL_AMOEBA_FULL,
2456     EL_BD_AMOEBA,
2457     EL_EMERALD,
2458     EL_BD_DIAMOND,
2459     EL_EMERALD_YELLOW,
2460     EL_EMERALD_RED,
2461     EL_EMERALD_PURPLE,
2462     EL_DIAMOND,
2463     EL_PEARL,
2464     EL_CRYSTAL,
2465     -1
2466   };
2467
2468   static int ep_food_penguin[] =
2469   {
2470     EL_EMERALD,
2471     EL_BD_DIAMOND,
2472     EL_EMERALD_YELLOW,
2473     EL_EMERALD_RED,
2474     EL_EMERALD_PURPLE,
2475     EL_DIAMOND,
2476     EL_PEARL,
2477     EL_CRYSTAL,
2478     -1
2479   };
2480
2481   static int ep_food_pig[] =
2482   {
2483     EL_EMERALD,
2484     EL_BD_DIAMOND,
2485     EL_EMERALD_YELLOW,
2486     EL_EMERALD_RED,
2487     EL_EMERALD_PURPLE,
2488     EL_DIAMOND,
2489     -1
2490   };
2491
2492   static int ep_historic_wall[] =
2493   {
2494     EL_STEELWALL,
2495     EL_GATE_1,
2496     EL_GATE_2,
2497     EL_GATE_3,
2498     EL_GATE_4,
2499     EL_GATE_1_GRAY,
2500     EL_GATE_2_GRAY,
2501     EL_GATE_3_GRAY,
2502     EL_GATE_4_GRAY,
2503     EL_EM_GATE_1,
2504     EL_EM_GATE_2,
2505     EL_EM_GATE_3,
2506     EL_EM_GATE_4,
2507     EL_EM_GATE_1_GRAY,
2508     EL_EM_GATE_2_GRAY,
2509     EL_EM_GATE_3_GRAY,
2510     EL_EM_GATE_4_GRAY,
2511     EL_EXIT_CLOSED,
2512     EL_EXIT_OPENING,
2513     EL_EXIT_OPEN,
2514     EL_WALL,
2515     EL_WALL_SLIPPERY,
2516     EL_EXPANDABLE_WALL,
2517     EL_EXPANDABLE_WALL_HORIZONTAL,
2518     EL_EXPANDABLE_WALL_VERTICAL,
2519     EL_EXPANDABLE_WALL_ANY,
2520     EL_EXPANDABLE_WALL_GROWING,
2521     EL_BD_WALL,
2522     EL_SP_CHIP_SINGLE,
2523     EL_SP_CHIP_LEFT,
2524     EL_SP_CHIP_RIGHT,
2525     EL_SP_CHIP_TOP,
2526     EL_SP_CHIP_BOTTOM,
2527     EL_SP_HARDWARE_GRAY,
2528     EL_SP_HARDWARE_GREEN,
2529     EL_SP_HARDWARE_BLUE,
2530     EL_SP_HARDWARE_RED,
2531     EL_SP_HARDWARE_YELLOW,
2532     EL_SP_HARDWARE_BASE_1,
2533     EL_SP_HARDWARE_BASE_2,
2534     EL_SP_HARDWARE_BASE_3,
2535     EL_SP_HARDWARE_BASE_4,
2536     EL_SP_HARDWARE_BASE_5,
2537     EL_SP_HARDWARE_BASE_6,
2538     EL_SP_TERMINAL,
2539     EL_SP_TERMINAL_ACTIVE,
2540     EL_SP_EXIT_CLOSED,
2541     EL_SP_EXIT_OPEN,
2542     EL_INVISIBLE_STEELWALL,
2543     EL_INVISIBLE_STEELWALL_ACTIVE,
2544     EL_INVISIBLE_WALL,
2545     EL_INVISIBLE_WALL_ACTIVE,
2546     EL_STEELWALL_SLIPPERY,
2547     EL_EMC_STEELWALL_1,
2548     EL_EMC_STEELWALL_2,
2549     EL_EMC_STEELWALL_3,
2550     EL_EMC_STEELWALL_4,
2551     EL_EMC_WALL_1,
2552     EL_EMC_WALL_2,
2553     EL_EMC_WALL_3,
2554     EL_EMC_WALL_4,
2555     EL_EMC_WALL_5,
2556     EL_EMC_WALL_6,
2557     EL_EMC_WALL_7,
2558     EL_EMC_WALL_8,
2559     -1
2560   };
2561
2562   static int ep_historic_solid[] =
2563   {
2564     EL_WALL,
2565     EL_EXPANDABLE_WALL,
2566     EL_EXPANDABLE_WALL_HORIZONTAL,
2567     EL_EXPANDABLE_WALL_VERTICAL,
2568     EL_EXPANDABLE_WALL_ANY,
2569     EL_BD_WALL,
2570     EL_WALL_SLIPPERY,
2571     EL_EXIT_CLOSED,
2572     EL_EXIT_OPENING,
2573     EL_EXIT_OPEN,
2574     EL_AMOEBA_DEAD,
2575     EL_AMOEBA_WET,
2576     EL_AMOEBA_DRY,
2577     EL_AMOEBA_FULL,
2578     EL_BD_AMOEBA,
2579     EL_QUICKSAND_EMPTY,
2580     EL_QUICKSAND_FULL,
2581     EL_QUICKSAND_FILLING,
2582     EL_QUICKSAND_EMPTYING,
2583     EL_MAGIC_WALL,
2584     EL_MAGIC_WALL_ACTIVE,
2585     EL_MAGIC_WALL_EMPTYING,
2586     EL_MAGIC_WALL_FILLING,
2587     EL_MAGIC_WALL_FULL,
2588     EL_MAGIC_WALL_DEAD,
2589     EL_BD_MAGIC_WALL,
2590     EL_BD_MAGIC_WALL_ACTIVE,
2591     EL_BD_MAGIC_WALL_EMPTYING,
2592     EL_BD_MAGIC_WALL_FULL,
2593     EL_BD_MAGIC_WALL_FILLING,
2594     EL_BD_MAGIC_WALL_DEAD,
2595     EL_GAME_OF_LIFE,
2596     EL_BIOMAZE,
2597     EL_SP_CHIP_SINGLE,
2598     EL_SP_CHIP_LEFT,
2599     EL_SP_CHIP_RIGHT,
2600     EL_SP_CHIP_TOP,
2601     EL_SP_CHIP_BOTTOM,
2602     EL_SP_TERMINAL,
2603     EL_SP_TERMINAL_ACTIVE,
2604     EL_SP_EXIT_CLOSED,
2605     EL_SP_EXIT_OPEN,
2606     EL_INVISIBLE_WALL,
2607     EL_INVISIBLE_WALL_ACTIVE,
2608     EL_SWITCHGATE_SWITCH_UP,
2609     EL_SWITCHGATE_SWITCH_DOWN,
2610     EL_TIMEGATE_SWITCH,
2611     EL_TIMEGATE_SWITCH_ACTIVE,
2612     EL_EMC_WALL_1,
2613     EL_EMC_WALL_2,
2614     EL_EMC_WALL_3,
2615     EL_EMC_WALL_4,
2616     EL_EMC_WALL_5,
2617     EL_EMC_WALL_6,
2618     EL_EMC_WALL_7,
2619     EL_EMC_WALL_8,
2620     EL_WALL_PEARL,
2621     EL_WALL_CRYSTAL,
2622
2623     /* the following elements are a direct copy of "indestructible" elements,
2624        except "EL_ACID", which is "indestructible", but not "solid"! */
2625 #if 0
2626     EL_ACID,
2627 #endif
2628     EL_STEELWALL,
2629     EL_ACID_POOL_TOPLEFT,
2630     EL_ACID_POOL_TOPRIGHT,
2631     EL_ACID_POOL_BOTTOMLEFT,
2632     EL_ACID_POOL_BOTTOM,
2633     EL_ACID_POOL_BOTTOMRIGHT,
2634     EL_SP_HARDWARE_GRAY,
2635     EL_SP_HARDWARE_GREEN,
2636     EL_SP_HARDWARE_BLUE,
2637     EL_SP_HARDWARE_RED,
2638     EL_SP_HARDWARE_YELLOW,
2639     EL_SP_HARDWARE_BASE_1,
2640     EL_SP_HARDWARE_BASE_2,
2641     EL_SP_HARDWARE_BASE_3,
2642     EL_SP_HARDWARE_BASE_4,
2643     EL_SP_HARDWARE_BASE_5,
2644     EL_SP_HARDWARE_BASE_6,
2645     EL_INVISIBLE_STEELWALL,
2646     EL_INVISIBLE_STEELWALL_ACTIVE,
2647     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2648     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2649     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2650     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2651     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2652     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2653     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2654     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2655     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2656     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2657     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2658     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2659     EL_LIGHT_SWITCH,
2660     EL_LIGHT_SWITCH_ACTIVE,
2661     EL_SIGN_EXCLAMATION,
2662     EL_SIGN_RADIOACTIVITY,
2663     EL_SIGN_STOP,
2664     EL_SIGN_WHEELCHAIR,
2665     EL_SIGN_PARKING,
2666     EL_SIGN_ONEWAY,
2667     EL_SIGN_HEART,
2668     EL_SIGN_TRIANGLE,
2669     EL_SIGN_ROUND,
2670     EL_SIGN_EXIT,
2671     EL_SIGN_YINYANG,
2672     EL_SIGN_OTHER,
2673     EL_STEELWALL_SLIPPERY,
2674     EL_EMC_STEELWALL_1,
2675     EL_EMC_STEELWALL_2,
2676     EL_EMC_STEELWALL_3,
2677     EL_EMC_STEELWALL_4,
2678     EL_CRYSTAL,
2679     EL_GATE_1,
2680     EL_GATE_2,
2681     EL_GATE_3,
2682     EL_GATE_4,
2683     EL_GATE_1_GRAY,
2684     EL_GATE_2_GRAY,
2685     EL_GATE_3_GRAY,
2686     EL_GATE_4_GRAY,
2687     EL_EM_GATE_1,
2688     EL_EM_GATE_2,
2689     EL_EM_GATE_3,
2690     EL_EM_GATE_4,
2691     EL_EM_GATE_1_GRAY,
2692     EL_EM_GATE_2_GRAY,
2693     EL_EM_GATE_3_GRAY,
2694     EL_EM_GATE_4_GRAY,
2695     EL_SWITCHGATE_OPEN,
2696     EL_SWITCHGATE_OPENING,
2697     EL_SWITCHGATE_CLOSED,
2698     EL_SWITCHGATE_CLOSING,
2699     EL_TIMEGATE_OPEN,
2700     EL_TIMEGATE_OPENING,
2701     EL_TIMEGATE_CLOSED,
2702     EL_TIMEGATE_CLOSING,
2703     EL_TUBE_ANY,
2704     EL_TUBE_VERTICAL,
2705     EL_TUBE_HORIZONTAL,
2706     EL_TUBE_VERTICAL_LEFT,
2707     EL_TUBE_VERTICAL_RIGHT,
2708     EL_TUBE_HORIZONTAL_UP,
2709     EL_TUBE_HORIZONTAL_DOWN,
2710     EL_TUBE_LEFT_UP,
2711     EL_TUBE_LEFT_DOWN,
2712     EL_TUBE_RIGHT_UP,
2713     EL_TUBE_RIGHT_DOWN,
2714     -1
2715   };
2716
2717   static int ep_classic_enemy[] =
2718   {
2719     EL_BUG,
2720     EL_SPACESHIP,
2721     EL_BD_BUTTERFLY,
2722     EL_BD_FIREFLY,
2723
2724     EL_YAMYAM,
2725     EL_DARK_YAMYAM,
2726     EL_ROBOT,
2727     EL_PACMAN,
2728     EL_SP_SNIKSNAK,
2729     EL_SP_ELECTRON,
2730     -1
2731   };
2732
2733   static int ep_belt[] =
2734   {
2735     EL_CONVEYOR_BELT_1_LEFT,
2736     EL_CONVEYOR_BELT_1_MIDDLE,
2737     EL_CONVEYOR_BELT_1_RIGHT,
2738     EL_CONVEYOR_BELT_2_LEFT,
2739     EL_CONVEYOR_BELT_2_MIDDLE,
2740     EL_CONVEYOR_BELT_2_RIGHT,
2741     EL_CONVEYOR_BELT_3_LEFT,
2742     EL_CONVEYOR_BELT_3_MIDDLE,
2743     EL_CONVEYOR_BELT_3_RIGHT,
2744     EL_CONVEYOR_BELT_4_LEFT,
2745     EL_CONVEYOR_BELT_4_MIDDLE,
2746     EL_CONVEYOR_BELT_4_RIGHT,
2747     -1
2748   };
2749
2750   static int ep_belt_active[] =
2751   {
2752     EL_CONVEYOR_BELT_1_LEFT_ACTIVE,
2753     EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE,
2754     EL_CONVEYOR_BELT_1_RIGHT_ACTIVE,
2755     EL_CONVEYOR_BELT_2_LEFT_ACTIVE,
2756     EL_CONVEYOR_BELT_2_MIDDLE_ACTIVE,
2757     EL_CONVEYOR_BELT_2_RIGHT_ACTIVE,
2758     EL_CONVEYOR_BELT_3_LEFT_ACTIVE,
2759     EL_CONVEYOR_BELT_3_MIDDLE_ACTIVE,
2760     EL_CONVEYOR_BELT_3_RIGHT_ACTIVE,
2761     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
2762     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
2763     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
2764     -1
2765   };
2766
2767   static int ep_belt_switch[] =
2768   {
2769     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2770     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2771     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2772     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2773     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2774     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2775     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2776     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2777     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2778     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2779     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2780     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2781     -1
2782   };
2783
2784   static int ep_tube[] =
2785   {
2786     EL_TUBE_LEFT_UP,
2787     EL_TUBE_LEFT_DOWN,
2788     EL_TUBE_RIGHT_UP,
2789     EL_TUBE_RIGHT_DOWN,
2790     EL_TUBE_HORIZONTAL,
2791     EL_TUBE_HORIZONTAL_UP,
2792     EL_TUBE_HORIZONTAL_DOWN,
2793     EL_TUBE_VERTICAL,
2794     EL_TUBE_VERTICAL_LEFT,
2795     EL_TUBE_VERTICAL_RIGHT,
2796     EL_TUBE_ANY,
2797     -1
2798   };
2799
2800   static int ep_keygate[] =
2801   {
2802     EL_GATE_1,
2803     EL_GATE_2,
2804     EL_GATE_3,
2805     EL_GATE_4,
2806     EL_GATE_1_GRAY,
2807     EL_GATE_2_GRAY,
2808     EL_GATE_3_GRAY,
2809     EL_GATE_4_GRAY,
2810     EL_EM_GATE_1,
2811     EL_EM_GATE_2,
2812     EL_EM_GATE_3,
2813     EL_EM_GATE_4,
2814     EL_EM_GATE_1_GRAY,
2815     EL_EM_GATE_2_GRAY,
2816     EL_EM_GATE_3_GRAY,
2817     EL_EM_GATE_4_GRAY,
2818     -1
2819   };
2820
2821   static int ep_amoeboid[] =
2822   {
2823     EL_AMOEBA_DEAD,
2824     EL_AMOEBA_WET,
2825     EL_AMOEBA_DRY,
2826     EL_AMOEBA_FULL,
2827     EL_BD_AMOEBA,
2828     -1
2829   };
2830
2831   static int ep_amoebalive[] =
2832   {
2833     EL_AMOEBA_WET,
2834     EL_AMOEBA_DRY,
2835     EL_AMOEBA_FULL,
2836     EL_BD_AMOEBA,
2837     -1
2838   };
2839
2840   static int ep_has_content[] =
2841   {
2842     EL_YAMYAM,
2843     EL_AMOEBA_WET,
2844     EL_AMOEBA_DRY,
2845     EL_AMOEBA_FULL,
2846     EL_BD_AMOEBA,
2847     -1
2848   };
2849
2850   static int ep_can_turn_each_move[] =
2851   {
2852     /* !!! do something with this one !!! */
2853     -1
2854   };
2855
2856   static int ep_can_grow[] =
2857   {
2858     EL_BD_AMOEBA,
2859     EL_AMOEBA_DROP,
2860     EL_AMOEBA_WET,
2861     EL_AMOEBA_DRY,
2862     EL_AMOEBA_FULL,
2863     EL_GAME_OF_LIFE,
2864     EL_BIOMAZE,
2865     -1
2866   };
2867
2868   static int ep_active_bomb[] =
2869   {
2870     EL_DYNAMITE_ACTIVE,
2871     EL_DYNABOMB_PLAYER_1_ACTIVE,
2872     EL_DYNABOMB_PLAYER_2_ACTIVE,
2873     EL_DYNABOMB_PLAYER_3_ACTIVE,
2874     EL_DYNABOMB_PLAYER_4_ACTIVE,
2875     EL_SP_DISK_RED_ACTIVE,
2876     -1
2877   };
2878
2879   static int ep_inactive[] =
2880   {
2881     EL_EMPTY,
2882     EL_SAND,
2883     EL_WALL,
2884     EL_BD_WALL,
2885     EL_WALL_SLIPPERY,
2886     EL_STEELWALL,
2887     EL_AMOEBA_DEAD,
2888     EL_QUICKSAND_EMPTY,
2889     EL_STONEBLOCK,
2890     EL_ROBOT_WHEEL,
2891     EL_KEY_1,
2892     EL_KEY_2,
2893     EL_KEY_3,
2894     EL_KEY_4,
2895     EL_EM_KEY_1,
2896     EL_EM_KEY_2,
2897     EL_EM_KEY_3,
2898     EL_EM_KEY_4,
2899     EL_GATE_1,
2900     EL_GATE_2,
2901     EL_GATE_3,
2902     EL_GATE_4,
2903     EL_GATE_1_GRAY,
2904     EL_GATE_2_GRAY,
2905     EL_GATE_3_GRAY,
2906     EL_GATE_4_GRAY,
2907     EL_EM_GATE_1,
2908     EL_EM_GATE_2,
2909     EL_EM_GATE_3,
2910     EL_EM_GATE_4,
2911     EL_EM_GATE_1_GRAY,
2912     EL_EM_GATE_2_GRAY,
2913     EL_EM_GATE_3_GRAY,
2914     EL_EM_GATE_4_GRAY,
2915     EL_DYNAMITE,
2916     EL_INVISIBLE_STEELWALL,
2917     EL_INVISIBLE_WALL,
2918     EL_INVISIBLE_SAND,
2919     EL_LAMP,
2920     EL_LAMP_ACTIVE,
2921     EL_WALL_EMERALD,
2922     EL_WALL_DIAMOND,
2923     EL_WALL_BD_DIAMOND,
2924     EL_WALL_EMERALD_YELLOW,
2925     EL_DYNABOMB_INCREASE_NUMBER,
2926     EL_DYNABOMB_INCREASE_SIZE,
2927     EL_DYNABOMB_INCREASE_POWER,
2928 #if 0
2929     EL_SOKOBAN_OBJECT,
2930 #endif
2931     EL_SOKOBAN_FIELD_EMPTY,
2932     EL_SOKOBAN_FIELD_FULL,
2933     EL_WALL_EMERALD_RED,
2934     EL_WALL_EMERALD_PURPLE,
2935     EL_ACID_POOL_TOPLEFT,
2936     EL_ACID_POOL_TOPRIGHT,
2937     EL_ACID_POOL_BOTTOMLEFT,
2938     EL_ACID_POOL_BOTTOM,
2939     EL_ACID_POOL_BOTTOMRIGHT,
2940     EL_MAGIC_WALL,
2941     EL_MAGIC_WALL_DEAD,
2942     EL_BD_MAGIC_WALL,
2943     EL_BD_MAGIC_WALL_DEAD,
2944     EL_AMOEBA_TO_DIAMOND,
2945     EL_BLOCKED,
2946     EL_SP_EMPTY,
2947     EL_SP_BASE,
2948     EL_SP_PORT_RIGHT,
2949     EL_SP_PORT_DOWN,
2950     EL_SP_PORT_LEFT,
2951     EL_SP_PORT_UP,
2952     EL_SP_GRAVITY_PORT_RIGHT,
2953     EL_SP_GRAVITY_PORT_DOWN,
2954     EL_SP_GRAVITY_PORT_LEFT,
2955     EL_SP_GRAVITY_PORT_UP,
2956     EL_SP_PORT_HORIZONTAL,
2957     EL_SP_PORT_VERTICAL,
2958     EL_SP_PORT_ANY,
2959     EL_SP_DISK_RED,
2960 #if 0
2961     EL_SP_DISK_YELLOW,
2962 #endif
2963     EL_SP_CHIP_SINGLE,
2964     EL_SP_CHIP_LEFT,
2965     EL_SP_CHIP_RIGHT,
2966     EL_SP_CHIP_TOP,
2967     EL_SP_CHIP_BOTTOM,
2968     EL_SP_HARDWARE_GRAY,
2969     EL_SP_HARDWARE_GREEN,
2970     EL_SP_HARDWARE_BLUE,
2971     EL_SP_HARDWARE_RED,
2972     EL_SP_HARDWARE_YELLOW,
2973     EL_SP_HARDWARE_BASE_1,
2974     EL_SP_HARDWARE_BASE_2,
2975     EL_SP_HARDWARE_BASE_3,
2976     EL_SP_HARDWARE_BASE_4,
2977     EL_SP_HARDWARE_BASE_5,
2978     EL_SP_HARDWARE_BASE_6,
2979     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2980     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2981     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2982     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2983     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2984     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2985     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2986     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2987     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2988     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2989     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2990     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2991     EL_SIGN_EXCLAMATION,
2992     EL_SIGN_RADIOACTIVITY,
2993     EL_SIGN_STOP,
2994     EL_SIGN_WHEELCHAIR,
2995     EL_SIGN_PARKING,
2996     EL_SIGN_ONEWAY,
2997     EL_SIGN_HEART,
2998     EL_SIGN_TRIANGLE,
2999     EL_SIGN_ROUND,
3000     EL_SIGN_EXIT,
3001     EL_SIGN_YINYANG,
3002     EL_SIGN_OTHER,
3003     EL_STEELWALL_SLIPPERY,
3004     EL_EMC_STEELWALL_1,
3005     EL_EMC_STEELWALL_2,
3006     EL_EMC_STEELWALL_3,
3007     EL_EMC_STEELWALL_4,
3008     EL_EMC_WALL_1,
3009     EL_EMC_WALL_2,
3010     EL_EMC_WALL_3,
3011     EL_EMC_WALL_4,
3012     EL_EMC_WALL_5,
3013     EL_EMC_WALL_6,
3014     EL_EMC_WALL_7,
3015     EL_EMC_WALL_8,
3016     -1
3017   };
3018
3019   static int ep_em_slippery_wall[] =
3020   {
3021     -1
3022   };
3023
3024   static int ep_gfx_crumbled[] =
3025   {
3026     EL_SAND,
3027     EL_LANDMINE,
3028     EL_TRAP,
3029     EL_TRAP_ACTIVE,
3030     -1
3031   };
3032
3033   static struct
3034   {
3035     int *elements;
3036     int property;
3037   } element_properties[] =
3038   {
3039     { ep_diggable,              EP_DIGGABLE             },
3040     { ep_collectible_only,      EP_COLLECTIBLE_ONLY     },
3041     { ep_dont_run_into,         EP_DONT_RUN_INTO        },
3042     { ep_dont_collide_with,     EP_DONT_COLLIDE_WITH    },
3043     { ep_dont_touch,            EP_DONT_TOUCH           },
3044     { ep_indestructible,        EP_INDESTRUCTIBLE       },
3045     { ep_slippery,              EP_SLIPPERY             },
3046     { ep_can_change,            EP_CAN_CHANGE           },
3047     { ep_can_move,              EP_CAN_MOVE             },
3048     { ep_can_fall,              EP_CAN_FALL             },
3049     { ep_can_smash_player,      EP_CAN_SMASH_PLAYER     },
3050     { ep_can_smash_enemies,     EP_CAN_SMASH_ENEMIES    },
3051     { ep_can_smash_everything,  EP_CAN_SMASH_EVERYTHING },
3052     { ep_can_explode_by_fire,   EP_CAN_EXPLODE_BY_FIRE  },
3053     { ep_can_explode_smashed,   EP_CAN_EXPLODE_SMASHED  },
3054     { ep_can_explode_impact,    EP_CAN_EXPLODE_IMPACT   },
3055     { ep_walkable_over,         EP_WALKABLE_OVER        },
3056     { ep_walkable_inside,       EP_WALKABLE_INSIDE      },
3057     { ep_walkable_under,        EP_WALKABLE_UNDER       },
3058     { ep_passable_over,         EP_PASSABLE_OVER        },
3059     { ep_passable_inside,       EP_PASSABLE_INSIDE      },
3060     { ep_passable_under,        EP_PASSABLE_UNDER       },
3061     { ep_droppable,             EP_DROPPABLE            },
3062     { ep_can_explode_1x1,       EP_CAN_EXPLODE_1X1      },
3063     { ep_pushable,              EP_PUSHABLE             },
3064     { ep_can_explode_cross,     EP_CAN_EXPLODE_CROSS    },
3065     { ep_protected,             EP_PROTECTED            },
3066     { ep_throwable,             EP_THROWABLE            },
3067
3068     { ep_player,                EP_PLAYER               },
3069     { ep_can_pass_magic_wall,   EP_CAN_PASS_MAGIC_WALL  },
3070     { ep_switchable,            EP_SWITCHABLE           },
3071     { ep_bd_element,            EP_BD_ELEMENT           },
3072     { ep_sp_element,            EP_SP_ELEMENT           },
3073     { ep_sb_element,            EP_SB_ELEMENT           },
3074     { ep_gem,                   EP_GEM                  },
3075     { ep_food_dark_yamyam,      EP_FOOD_DARK_YAMYAM     },
3076     { ep_food_penguin,          EP_FOOD_PENGUIN         },
3077     { ep_food_pig,              EP_FOOD_PIG             },
3078     { ep_historic_wall,         EP_HISTORIC_WALL        },
3079     { ep_historic_solid,        EP_HISTORIC_SOLID       },
3080     { ep_classic_enemy,         EP_CLASSIC_ENEMY        },
3081     { ep_belt,                  EP_BELT                 },
3082     { ep_belt_active,           EP_BELT_ACTIVE          },
3083     { ep_belt_switch,           EP_BELT_SWITCH          },
3084     { ep_tube,                  EP_TUBE                 },
3085     { ep_keygate,               EP_KEYGATE              },
3086     { ep_amoeboid,              EP_AMOEBOID             },
3087     { ep_amoebalive,            EP_AMOEBALIVE           },
3088     { ep_has_content,           EP_HAS_CONTENT          },
3089     { ep_can_turn_each_move,    EP_CAN_TURN_EACH_MOVE   },
3090     { ep_can_grow,              EP_CAN_GROW             },
3091     { ep_active_bomb,           EP_ACTIVE_BOMB          },
3092     { ep_inactive,              EP_INACTIVE             },
3093
3094     { ep_em_slippery_wall,      EP_EM_SLIPPERY_WALL     },
3095
3096     { ep_gfx_crumbled,          EP_GFX_CRUMBLED         },
3097
3098     { NULL,                     -1                      }
3099   };
3100
3101   static int copy_properties[][5] =
3102   {
3103     {
3104       EL_BUG,
3105       EL_BUG_LEFT,              EL_BUG_RIGHT,
3106       EL_BUG_UP,                EL_BUG_DOWN
3107     },
3108     {
3109       EL_SPACESHIP,
3110       EL_SPACESHIP_LEFT,        EL_SPACESHIP_RIGHT,
3111       EL_SPACESHIP_UP,          EL_SPACESHIP_DOWN
3112     },
3113     {
3114       EL_BD_BUTTERFLY,
3115       EL_BD_BUTTERFLY_LEFT,     EL_BD_BUTTERFLY_RIGHT,
3116       EL_BD_BUTTERFLY_UP,       EL_BD_BUTTERFLY_DOWN
3117     },
3118     {
3119       EL_BD_FIREFLY,
3120       EL_BD_FIREFLY_LEFT,       EL_BD_FIREFLY_RIGHT,
3121       EL_BD_FIREFLY_UP,         EL_BD_FIREFLY_DOWN
3122     },
3123     {
3124       EL_PACMAN,
3125       EL_PACMAN_LEFT,           EL_PACMAN_RIGHT,
3126       EL_PACMAN_UP,             EL_PACMAN_DOWN
3127     },
3128     {
3129       EL_MOLE,
3130       EL_MOLE_LEFT,             EL_MOLE_RIGHT,
3131       EL_MOLE_UP,               EL_MOLE_DOWN
3132     },
3133     {
3134       -1,
3135       -1, -1, -1, -1
3136     }
3137   };
3138
3139   int i, j, k;
3140
3141   /* always start with reliable default values (element has no properties) */
3142   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3143     for (j = 0; j < NUM_ELEMENT_PROPERTIES; j++)
3144       SET_PROPERTY(i, j, FALSE);
3145
3146   /* set all base element properties from above array definitions */
3147   for (i = 0; element_properties[i].elements != NULL; i++)
3148     for (j = 0; (element_properties[i].elements)[j] != -1; j++)
3149       SET_PROPERTY((element_properties[i].elements)[j],
3150                    element_properties[i].property, TRUE);
3151
3152   /* copy properties to some elements that are only stored in level file */
3153   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
3154     for (j = 0; copy_properties[j][0] != -1; j++)
3155       if (HAS_PROPERTY(copy_properties[j][0], i))
3156         for (k = 1; k <= 4; k++)
3157           SET_PROPERTY(copy_properties[j][k], i, TRUE);
3158 }
3159
3160 void InitElementPropertiesEngine(int engine_version)
3161 {
3162 #if 0
3163   static int active_properties[] =
3164   {
3165     EP_AMOEBALIVE,
3166     EP_AMOEBOID,
3167     EP_PFORTE,
3168     EP_DONT_COLLIDE_WITH,
3169     EP_MAUER,
3170     EP_CAN_FALL,
3171     EP_CAN_SMASH,
3172     EP_CAN_PASS_MAGIC_WALL,
3173     EP_CAN_MOVE,
3174     EP_DONT_TOUCH,
3175     EP_DONT_RUN_INTO,
3176     EP_GEM,
3177     EP_CAN_EXPLODE_BY_FIRE,
3178     EP_PUSHABLE,
3179     EP_PLAYER,
3180     EP_HAS_CONTENT,
3181     EP_DIGGABLE,
3182     EP_PASSABLE_INSIDE,
3183     EP_OVER_PLAYER,
3184     EP_ACTIVE_BOMB,
3185
3186     EP_BELT,
3187     EP_BELT_ACTIVE,
3188     EP_BELT_SWITCH,
3189     EP_WALKABLE_UNDER,
3190     EP_EM_SLIPPERY_WALL,
3191   };
3192 #endif
3193
3194   static int no_wall_properties[] =
3195   {
3196     EP_DIGGABLE,
3197     EP_COLLECTIBLE_ONLY,
3198     EP_DONT_RUN_INTO,
3199     EP_DONT_COLLIDE_WITH,
3200     EP_CAN_MOVE,
3201     EP_CAN_FALL,
3202     EP_CAN_SMASH_PLAYER,
3203     EP_CAN_SMASH_ENEMIES,
3204     EP_CAN_SMASH_EVERYTHING,
3205     EP_PUSHABLE,
3206
3207     EP_PLAYER,
3208     EP_GEM,
3209     EP_FOOD_DARK_YAMYAM,
3210     EP_FOOD_PENGUIN,
3211     EP_BELT,
3212     EP_BELT_ACTIVE,
3213     EP_TUBE,
3214     EP_AMOEBOID,
3215     EP_AMOEBALIVE,
3216     EP_ACTIVE_BOMB,
3217
3218     EP_ACCESSIBLE,
3219
3220     -1
3221   };
3222
3223   int i, j;
3224
3225 #if 0
3226   InitElementPropertiesStatic();
3227 #endif
3228
3229   /* important: after initialization in InitElementPropertiesStatic(), the
3230      elements are not again initialized to a default value; therefore all
3231      changes have to make sure that they leave the element with a defined
3232      property (which means that conditional property changes must be set to
3233      a reliable default value before) */
3234
3235   /* set all special, combined or engine dependent element properties */
3236   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3237   {
3238 #if 0
3239     for (j = EP_ACCESSIBLE_OVER; j < NUM_ELEMENT_PROPERTIES; j++)
3240       SET_PROPERTY(i, j, FALSE);
3241 #endif
3242
3243     /* ---------- INACTIVE ------------------------------------------------- */
3244     SET_PROPERTY(i, EP_INACTIVE, (i >= EL_CHAR_START && i <= EL_CHAR_END));
3245
3246     /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
3247     SET_PROPERTY(i, EP_WALKABLE, (IS_WALKABLE_OVER(i) ||
3248                                   IS_WALKABLE_INSIDE(i) ||
3249                                   IS_WALKABLE_UNDER(i)));
3250
3251     SET_PROPERTY(i, EP_PASSABLE, (IS_PASSABLE_OVER(i) ||
3252                                   IS_PASSABLE_INSIDE(i) ||
3253                                   IS_PASSABLE_UNDER(i)));
3254
3255     SET_PROPERTY(i, EP_ACCESSIBLE_OVER, (IS_WALKABLE_OVER(i) ||
3256                                          IS_PASSABLE_OVER(i)));
3257
3258     SET_PROPERTY(i, EP_ACCESSIBLE_INSIDE, (IS_WALKABLE_INSIDE(i) ||
3259                                            IS_PASSABLE_INSIDE(i)));
3260
3261     SET_PROPERTY(i, EP_ACCESSIBLE_UNDER, (IS_WALKABLE_UNDER(i) ||
3262                                           IS_PASSABLE_UNDER(i)));
3263
3264     SET_PROPERTY(i, EP_ACCESSIBLE, (IS_WALKABLE(i) ||
3265                                     IS_PASSABLE(i)));
3266
3267     /* ---------- COLLECTIBLE ---------------------------------------------- */
3268     SET_PROPERTY(i, EP_COLLECTIBLE, (IS_COLLECTIBLE_ONLY(i) ||
3269                                      IS_DROPPABLE(i) ||
3270                                      IS_THROWABLE(i)));
3271
3272     /* ---------- SNAPPABLE ------------------------------------------------ */
3273     SET_PROPERTY(i, EP_SNAPPABLE, (IS_DIGGABLE(i) ||
3274                                    IS_COLLECTIBLE(i) ||
3275                                    IS_SWITCHABLE(i) ||
3276                                    i == EL_BD_ROCK));
3277
3278     /* ---------- WALL ----------------------------------------------------- */
3279     SET_PROPERTY(i, EP_WALL, TRUE);     /* default: element is wall */
3280
3281     for (j = 0; no_wall_properties[j] != -1; j++)
3282       if (HAS_PROPERTY(i, no_wall_properties[j]) ||
3283           i >= EL_FIRST_RUNTIME_UNREAL)
3284         SET_PROPERTY(i, EP_WALL, FALSE);
3285
3286     if (IS_HISTORIC_WALL(i))
3287       SET_PROPERTY(i, EP_WALL, TRUE);
3288
3289     /* ---------- SOLID_FOR_PUSHING ---------------------------------------- */
3290     if (engine_version < VERSION_IDENT(2,2,0,0))
3291       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, IS_HISTORIC_SOLID(i));
3292     else
3293       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, (!IS_WALKABLE(i) &&
3294                                              !IS_DIGGABLE(i) &&
3295                                              !IS_COLLECTIBLE(i)));
3296
3297 #if 1
3298     /* ---------- PROTECTED ------------------------------------------------ */
3299     if (IS_ACCESSIBLE_INSIDE(i))
3300       SET_PROPERTY(i, EP_PROTECTED, TRUE);
3301 #endif
3302
3303     /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
3304
3305     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
3306       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
3307     else
3308       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, (IS_CUSTOM_ELEMENT(i) &&
3309                                             IS_INDESTRUCTIBLE(i)));
3310
3311     /* ---------- EXPLOSION_PROOF ------------------------------------------ */
3312     if (i == EL_FLAMES)
3313       SET_PROPERTY(i, EP_EXPLOSION_PROOF, TRUE);
3314     else if (engine_version < VERSION_IDENT(2,2,0,0))
3315       SET_PROPERTY(i, EP_EXPLOSION_PROOF, IS_INDESTRUCTIBLE(i));
3316     else
3317 #if 1
3318       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3319                                            (!IS_WALKABLE(i) ||
3320                                             IS_PROTECTED(i))));
3321 #else
3322 #if 1
3323       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3324                                            !IS_WALKABLE_OVER(i) &&
3325                                            !IS_WALKABLE_UNDER(i)));
3326 #else
3327       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3328                                            IS_PROTECTED(i)));
3329 #endif
3330 #endif
3331
3332     if (IS_CUSTOM_ELEMENT(i))
3333     {
3334       /* these are additional properties which are initially false when set */
3335
3336       /* ---------- DONT_COLLIDE_WITH / DONT_RUN_INTO ---------------------- */
3337       if (DONT_TOUCH(i))
3338         SET_PROPERTY(i, EP_DONT_COLLIDE_WITH, TRUE);
3339       if (DONT_COLLIDE_WITH(i))
3340         SET_PROPERTY(i, EP_DONT_RUN_INTO, TRUE);
3341
3342       /* ---------- CAN_SMASH_ENEMIES / CAN_SMASH_PLAYER ------------------- */
3343       if (CAN_SMASH_EVERYTHING(i))
3344         SET_PROPERTY(i, EP_CAN_SMASH_ENEMIES, TRUE);
3345       if (CAN_SMASH_ENEMIES(i))
3346         SET_PROPERTY(i, EP_CAN_SMASH_PLAYER, TRUE);
3347     }
3348
3349     /* ---------- CAN_SMASH ------------------------------------------------ */
3350     SET_PROPERTY(i, EP_CAN_SMASH, (CAN_SMASH_PLAYER(i) ||
3351                                    CAN_SMASH_ENEMIES(i) ||
3352                                    CAN_SMASH_EVERYTHING(i)));
3353
3354     /* ---------- CAN_EXPLODE ---------------------------------------------- */
3355     SET_PROPERTY(i, EP_CAN_EXPLODE, (CAN_EXPLODE_BY_FIRE(i) ||
3356                                      CAN_EXPLODE_SMASHED(i) ||
3357                                      CAN_EXPLODE_IMPACT(i)));
3358
3359     /* ---------- CAN_EXPLODE_3X3 ------------------------------------------ */
3360     SET_PROPERTY(i, EP_CAN_EXPLODE_3X3, (CAN_EXPLODE(i) &&
3361                                          !CAN_EXPLODE_1X1(i) &&
3362                                          !CAN_EXPLODE_CROSS(i)));
3363
3364     /* ---------- CAN_EXPLODE_BY_DRAGONFIRE -------------------------------- */
3365     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_DRAGONFIRE, CAN_EXPLODE_BY_FIRE(i));
3366
3367     /* ---------- CAN_EXPLODE_BY_EXPLOSION --------------------------------- */
3368     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_EXPLOSION, (CAN_EXPLODE_BY_FIRE(i) ||
3369                                                   i == EL_BLACK_ORB));
3370
3371     /* ---------- COULD_MOVE_INTO_ACID ------------------------------------- */
3372     SET_PROPERTY(i, EP_COULD_MOVE_INTO_ACID, (ELEM_IS_PLAYER(i) ||
3373                                               CAN_MOVE(i) ||
3374                                               IS_CUSTOM_ELEMENT(i)));
3375
3376     /* ---------- MAYBE_DONT_COLLIDE_WITH ---------------------------------- */
3377     SET_PROPERTY(i, EP_MAYBE_DONT_COLLIDE_WITH, (i == EL_SP_SNIKSNAK ||
3378                                                  i == EL_SP_ELECTRON));
3379
3380     /* ---------- CAN_MOVE_INTO_ACID --------------------------------------- */
3381     if (COULD_MOVE_INTO_ACID(i) && !IS_CUSTOM_ELEMENT(i))
3382       SET_PROPERTY(i, EP_CAN_MOVE_INTO_ACID,
3383                    getMoveIntoAcidProperty(&level, i));
3384
3385     /* ---------- DONT_COLLIDE_WITH ---------------------------------------- */
3386     if (MAYBE_DONT_COLLIDE_WITH(i))
3387       SET_PROPERTY(i, EP_DONT_COLLIDE_WITH,
3388                    getDontCollideWithProperty(&level, i));
3389
3390     /* ---------- SP_PORT -------------------------------------------------- */
3391     SET_PROPERTY(i, EP_SP_PORT, (IS_SP_ELEMENT(i) &&
3392                                  IS_PASSABLE_INSIDE(i)));
3393
3394 #if 0
3395     if (i == EL_CUSTOM_START + 253)
3396       printf("::: %d, %d, %d -> %d\n",
3397              CAN_EXPLODE_1X1(i),
3398              CAN_EXPLODE_3X3(i),
3399              CAN_EXPLODE_CROSS(i),
3400              CAN_EXPLODE(i));
3401 #endif
3402
3403     /* ---------- CAN_CHANGE ----------------------------------------------- */
3404     SET_PROPERTY(i, EP_CAN_CHANGE, FALSE);      /* default: cannot change */
3405     for (j = 0; j < element_info[i].num_change_pages; j++)
3406       if (element_info[i].change_page[j].can_change)
3407         SET_PROPERTY(i, EP_CAN_CHANGE, TRUE);
3408
3409     /* ---------- GFX_CRUMBLED --------------------------------------------- */
3410     SET_PROPERTY(i, EP_GFX_CRUMBLED,
3411                  element_info[i].crumbled[ACTION_DEFAULT] != IMG_EMPTY);
3412   }
3413
3414 #if 0
3415   /* determine inactive elements (used for engine main loop optimization) */
3416   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3417   {
3418     boolean active = FALSE;
3419
3420     for (j = 0; i < NUM_ELEMENT_PROPERTIES; j++)
3421     {
3422       if (HAS_PROPERTY(i, j))
3423         active = TRUE;
3424     }
3425
3426 #if 0
3427     if (!active)
3428       SET_PROPERTY(i, EP_INACTIVE, TRUE);
3429 #endif
3430   }
3431 #endif
3432
3433   /* dynamically adjust element properties according to game engine version */
3434   {
3435     static int ep_em_slippery_wall[] =
3436     {
3437       EL_STEELWALL,
3438       EL_WALL,
3439       EL_EXPANDABLE_WALL,
3440       EL_EXPANDABLE_WALL_HORIZONTAL,
3441       EL_EXPANDABLE_WALL_VERTICAL,
3442       EL_EXPANDABLE_WALL_ANY,
3443       -1
3444     };
3445
3446     /* special EM style gems behaviour */
3447     for (i = 0; ep_em_slippery_wall[i] != -1; i++)
3448       SET_PROPERTY(ep_em_slippery_wall[i], EP_EM_SLIPPERY_WALL,
3449                    level.em_slippery_gems);
3450
3451     /* "EL_EXPANDABLE_WALL_GROWING" wasn't slippery for EM gems in 2.0.1 */
3452     SET_PROPERTY(EL_EXPANDABLE_WALL_GROWING, EP_EM_SLIPPERY_WALL,
3453                  (level.em_slippery_gems &&
3454                   engine_version > VERSION_IDENT(2,0,1,0)));
3455   }
3456
3457 #if 1
3458   /* set default push delay values (corrected since version 3.0.7-1) */
3459   if (engine_version < VERSION_IDENT(3,0,7,1))
3460   {
3461     game.default_push_delay_fixed = 2;
3462     game.default_push_delay_random = 8;
3463   }
3464   else
3465   {
3466     game.default_push_delay_fixed = 8;
3467     game.default_push_delay_random = 8;
3468   }
3469
3470   /* set uninitialized push delay values of custom elements in older levels */
3471   for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
3472   {
3473     int element = EL_CUSTOM_START + i;
3474
3475     if (element_info[element].push_delay_fixed == -1)
3476       element_info[element].push_delay_fixed = game.default_push_delay_fixed;
3477     if (element_info[element].push_delay_random == -1)
3478       element_info[element].push_delay_random = game.default_push_delay_random;
3479   }
3480
3481   /* set some other uninitialized values of custom elements in older levels */
3482   if (engine_version < VERSION_IDENT(3,1,0,0))
3483   {
3484     for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
3485     {
3486       int element = EL_CUSTOM_START + i;
3487
3488       element_info[element].access_direction = MV_ALL_DIRECTIONS;
3489
3490       element_info[element].explosion_delay = 17;
3491       element_info[element].ignition_delay = 8;
3492     }
3493   }
3494
3495 #if 0
3496   /* set element properties that were handled incorrectly in older levels */
3497   if (engine_version < VERSION_IDENT(3,1,0,0))
3498   {
3499     SET_PROPERTY(EL_SP_SNIKSNAK, EP_DONT_COLLIDE_WITH, FALSE);
3500     SET_PROPERTY(EL_SP_ELECTRON, EP_DONT_COLLIDE_WITH, FALSE);
3501   }
3502 #endif
3503
3504 #endif
3505
3506   /* this is needed because some graphics depend on element properties */
3507   if (game_status == GAME_MODE_PLAYING)
3508     InitElementGraphicInfo();
3509 }
3510
3511 static void InitGlobal()
3512 {
3513   global.autoplay_leveldir = NULL;
3514
3515   global.frames_per_second = 0;
3516   global.fps_slowdown = FALSE;
3517   global.fps_slowdown_factor = 1;
3518 }
3519
3520 void Execute_Command(char *command)
3521 {
3522   int i;
3523
3524   if (strcmp(command, "print graphicsinfo.conf") == 0)
3525   {
3526     printf("# You can configure additional/alternative image files here.\n");
3527     printf("# (The entries below are default and therefore commented out.)\n");
3528     printf("\n");
3529     printf("%s\n", getFormattedSetupEntry("name", "Classic Graphics"));
3530     printf("\n");
3531     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3532     printf("\n");
3533
3534     for (i = 0; image_config[i].token != NULL; i++)
3535       printf("# %s\n", getFormattedSetupEntry(image_config[i].token,
3536                                               image_config[i].value));
3537
3538     exit(0);
3539   }
3540   else if (strcmp(command, "print soundsinfo.conf") == 0)
3541   {
3542     printf("# You can configure additional/alternative sound files here.\n");
3543     printf("# (The entries below are default and therefore commented out.)\n");
3544     printf("\n");
3545     printf("%s\n", getFormattedSetupEntry("name", "Classic Sounds"));
3546     printf("\n");
3547     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3548     printf("\n");
3549
3550     for (i = 0; sound_config[i].token != NULL; i++)
3551       printf("# %s\n", getFormattedSetupEntry(sound_config[i].token,
3552                                               sound_config[i].value));
3553
3554     exit(0);
3555   }
3556   else if (strcmp(command, "print musicinfo.conf") == 0)
3557   {
3558     printf("# You can configure additional/alternative music files here.\n");
3559     printf("# (The entries below are default and therefore commented out.)\n");
3560     printf("\n");
3561     printf("%s\n", getFormattedSetupEntry("name", "Classic Music"));
3562     printf("\n");
3563     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3564     printf("\n");
3565
3566     for (i = 0; music_config[i].token != NULL; i++)
3567       printf("# %s\n", getFormattedSetupEntry(music_config[i].token,
3568                                               music_config[i].value));
3569
3570     exit(0);
3571   }
3572   else if (strcmp(command, "print editorsetup.conf") == 0)
3573   {
3574     printf("# You can configure your personal editor element list here.\n");
3575     printf("# (The entries below are default and therefore commented out.)\n");
3576     printf("\n");
3577
3578     PrintEditorElementList();
3579
3580     exit(0);
3581   }
3582   else if (strcmp(command, "print helpanim.conf") == 0)
3583   {
3584     printf("# You can configure different element help animations here.\n");
3585     printf("# (The entries below are default and therefore commented out.)\n");
3586     printf("\n");
3587
3588     for (i = 0; helpanim_config[i].token != NULL; i++)
3589     {
3590       printf("# %s\n", getFormattedSetupEntry(helpanim_config[i].token,
3591                                               helpanim_config[i].value));
3592
3593       if (strcmp(helpanim_config[i].token, "end") == 0)
3594         printf("#\n");
3595     }
3596
3597     exit(0);
3598   }
3599   else if (strcmp(command, "print helptext.conf") == 0)
3600   {
3601     printf("# You can configure different element help text here.\n");
3602     printf("# (The entries below are default and therefore commented out.)\n");
3603     printf("\n");
3604
3605     for (i = 0; helptext_config[i].token != NULL; i++)
3606       printf("# %s\n", getFormattedSetupEntry(helptext_config[i].token,
3607                                               helptext_config[i].value));
3608
3609     exit(0);
3610   }
3611   else if (strncmp(command, "dump level ", 11) == 0)
3612   {
3613     char *filename = &command[11];
3614
3615     if (access(filename, F_OK) != 0)
3616       Error(ERR_EXIT, "cannot open file '%s'", filename);
3617
3618     LoadLevelFromFilename(&level, filename);
3619     DumpLevel(&level);
3620
3621     exit(0);
3622   }
3623   else if (strncmp(command, "dump tape ", 10) == 0)
3624   {
3625     char *filename = &command[10];
3626
3627     if (access(filename, F_OK) != 0)
3628       Error(ERR_EXIT, "cannot open file '%s'", filename);
3629
3630     LoadTapeFromFilename(filename);
3631     DumpTape(&tape);
3632
3633     exit(0);
3634   }
3635   else if (strncmp(command, "autoplay ", 9) == 0)
3636   {
3637     char *str_copy = getStringCopy(&command[9]);
3638     char *str_ptr = strchr(str_copy, ' ');
3639
3640     global.autoplay_leveldir = str_copy;
3641     global.autoplay_level_nr = -1;
3642
3643     if (str_ptr != NULL)
3644     {
3645       *str_ptr++ = '\0';                        /* terminate leveldir string */
3646       global.autoplay_level_nr = atoi(str_ptr); /* get level_nr value */
3647     }
3648   }
3649   else
3650   {
3651     Error(ERR_EXIT_HELP, "unrecognized command '%s'", command);
3652   }
3653 }
3654
3655 static void InitSetup()
3656 {
3657   LoadSetup();                                  /* global setup info */
3658
3659   /* set some options from setup file */
3660
3661   if (setup.options.verbose)
3662     options.verbose = TRUE;
3663 }
3664
3665 static void InitPlayerInfo()
3666 {
3667   int i;
3668
3669   /* choose default local player */
3670   local_player = &stored_player[0];
3671
3672   for (i = 0; i < MAX_PLAYERS; i++)
3673     stored_player[i].connected = FALSE;
3674
3675   local_player->connected = TRUE;
3676 }
3677
3678 static void InitArtworkInfo()
3679 {
3680   LoadArtworkInfo();
3681 }
3682
3683 static char *get_string_in_brackets(char *string)
3684 {
3685   char *string_in_brackets = checked_malloc(strlen(string) + 3);
3686
3687   sprintf(string_in_brackets, "[%s]", string);
3688
3689   return string_in_brackets;
3690 }
3691
3692 static char *get_level_id_suffix(int id_nr)
3693 {
3694   char *id_suffix = checked_malloc(1 + 3 + 1);
3695
3696   if (id_nr < 0 || id_nr > 999)
3697     id_nr = 0;
3698
3699   sprintf(id_suffix, ".%03d", id_nr);
3700
3701   return id_suffix;
3702 }
3703
3704 #if 0
3705 static char *get_element_class_token(int element)
3706 {
3707   char *element_class_name = element_info[element].class_name;
3708   char *element_class_token = checked_malloc(strlen(element_class_name) + 3);
3709
3710   sprintf(element_class_token, "[%s]", element_class_name);
3711
3712   return element_class_token;
3713 }
3714
3715 static char *get_action_class_token(int action)
3716 {
3717   char *action_class_name = &element_action_info[action].suffix[1];
3718   char *action_class_token = checked_malloc(strlen(action_class_name) + 3);
3719
3720   sprintf(action_class_token, "[%s]", action_class_name);
3721
3722   return action_class_token;
3723 }
3724 #endif
3725
3726 static void InitArtworkConfig()
3727 {
3728   static char *image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS + 1];
3729   static char *sound_id_prefix[2 * MAX_NUM_ELEMENTS + 1];
3730   static char *music_id_prefix[NUM_MUSIC_PREFIXES + 1];
3731   static char *action_id_suffix[NUM_ACTIONS + 1];
3732   static char *direction_id_suffix[NUM_DIRECTIONS + 1];
3733   static char *special_id_suffix[NUM_SPECIAL_GFX_ARGS + 1];
3734   static char *level_id_suffix[MAX_LEVELS + 1];
3735   static char *dummy[1] = { NULL };
3736   static char *ignore_generic_tokens[] =
3737   {
3738     "name",
3739     "sort_priority",
3740     NULL
3741   };
3742   static char **ignore_image_tokens;
3743   static char **ignore_sound_tokens;
3744   static char **ignore_music_tokens;
3745   int num_ignore_generic_tokens;
3746   int num_ignore_image_tokens;
3747   int num_ignore_sound_tokens;
3748   int num_ignore_music_tokens;
3749   int i;
3750
3751   /* dynamically determine list of generic tokens to be ignored */
3752   num_ignore_generic_tokens = 0;
3753   for (i = 0; ignore_generic_tokens[i] != NULL; i++)
3754     num_ignore_generic_tokens++;
3755
3756   /* dynamically determine list of image tokens to be ignored */
3757   num_ignore_image_tokens = num_ignore_generic_tokens;
3758   for (i = 0; image_config_vars[i].token != NULL; i++)
3759     num_ignore_image_tokens++;
3760   ignore_image_tokens =
3761     checked_malloc((num_ignore_image_tokens + 1) * sizeof(char *));
3762   for (i = 0; i < num_ignore_generic_tokens; i++)
3763     ignore_image_tokens[i] = ignore_generic_tokens[i];
3764   for (i = 0; i < num_ignore_image_tokens - num_ignore_generic_tokens; i++)
3765     ignore_image_tokens[num_ignore_generic_tokens + i] =
3766       image_config_vars[i].token;
3767   ignore_image_tokens[num_ignore_image_tokens] = NULL;
3768
3769   /* dynamically determine list of sound tokens to be ignored */
3770   num_ignore_sound_tokens = num_ignore_generic_tokens;
3771   ignore_sound_tokens =
3772     checked_malloc((num_ignore_sound_tokens + 1) * sizeof(char *));
3773   for (i = 0; i < num_ignore_generic_tokens; i++)
3774     ignore_sound_tokens[i] = ignore_generic_tokens[i];
3775   ignore_sound_tokens[num_ignore_sound_tokens] = NULL;
3776
3777   /* dynamically determine list of music tokens to be ignored */
3778   num_ignore_music_tokens = num_ignore_generic_tokens;
3779   ignore_music_tokens =
3780     checked_malloc((num_ignore_music_tokens + 1) * sizeof(char *));
3781   for (i = 0; i < num_ignore_generic_tokens; i++)
3782     ignore_music_tokens[i] = ignore_generic_tokens[i];
3783   ignore_music_tokens[num_ignore_music_tokens] = NULL;
3784
3785   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3786     image_id_prefix[i] = element_info[i].token_name;
3787   for (i = 0; i < NUM_FONTS; i++)
3788     image_id_prefix[MAX_NUM_ELEMENTS + i] = font_info[i].token_name;
3789   image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS] = NULL;
3790
3791   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3792     sound_id_prefix[i] = element_info[i].token_name;
3793   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3794     sound_id_prefix[MAX_NUM_ELEMENTS + i] =
3795       get_string_in_brackets(element_info[i].class_name);
3796   sound_id_prefix[2 * MAX_NUM_ELEMENTS] = NULL;
3797
3798   for (i = 0; i < NUM_MUSIC_PREFIXES; i++)
3799     music_id_prefix[i] = music_prefix_info[i].prefix;
3800   music_id_prefix[MAX_LEVELS] = NULL;
3801
3802   for (i = 0; i < NUM_ACTIONS; i++)
3803     action_id_suffix[i] = element_action_info[i].suffix;
3804   action_id_suffix[NUM_ACTIONS] = NULL;
3805
3806   for (i = 0; i < NUM_DIRECTIONS; i++)
3807     direction_id_suffix[i] = element_direction_info[i].suffix;
3808   direction_id_suffix[NUM_DIRECTIONS] = NULL;
3809
3810   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
3811     special_id_suffix[i] = special_suffix_info[i].suffix;
3812   special_id_suffix[NUM_SPECIAL_GFX_ARGS] = NULL;
3813
3814   for (i = 0; i < MAX_LEVELS; i++)
3815     level_id_suffix[i] = get_level_id_suffix(i);
3816   level_id_suffix[MAX_LEVELS] = NULL;
3817
3818   InitImageList(image_config, NUM_IMAGE_FILES, image_config_suffix,
3819                 image_id_prefix, action_id_suffix, direction_id_suffix,
3820                 special_id_suffix, ignore_image_tokens);
3821   InitSoundList(sound_config, NUM_SOUND_FILES, sound_config_suffix,
3822                 sound_id_prefix, action_id_suffix, dummy,
3823                 special_id_suffix, ignore_sound_tokens);
3824   InitMusicList(music_config, NUM_MUSIC_FILES, music_config_suffix,
3825                 music_id_prefix, special_id_suffix, level_id_suffix,
3826                 dummy, ignore_music_tokens);
3827 }
3828
3829 static void InitMixer()
3830 {
3831   OpenAudio();
3832   StartMixer();
3833 }
3834
3835 void InitGfx()
3836 {
3837   char *filename_font_initial = NULL;
3838   Bitmap *bitmap_font_initial = NULL;
3839   int i, j;
3840
3841   /* determine settings for initial font (for displaying startup messages) */
3842   for (i = 0; image_config[i].token != NULL; i++)
3843   {
3844     for (j = 0; j < NUM_INITIAL_FONTS; j++)
3845     {
3846       char font_token[128];
3847       int len_font_token;
3848
3849       sprintf(font_token, "%s_%d", CONFIG_TOKEN_FONT_INITIAL, j + 1);
3850       len_font_token = strlen(font_token);
3851
3852       if (strcmp(image_config[i].token, font_token) == 0)
3853         filename_font_initial = image_config[i].value;
3854       else if (strlen(image_config[i].token) > len_font_token &&
3855                strncmp(image_config[i].token, font_token, len_font_token) == 0)
3856       {
3857         if (strcmp(&image_config[i].token[len_font_token], ".x") == 0)
3858           font_initial[j].src_x = atoi(image_config[i].value);
3859         else if (strcmp(&image_config[i].token[len_font_token], ".y") == 0)
3860           font_initial[j].src_y = atoi(image_config[i].value);
3861         else if (strcmp(&image_config[i].token[len_font_token], ".width") == 0)
3862           font_initial[j].width = atoi(image_config[i].value);
3863         else if (strcmp(&image_config[i].token[len_font_token],".height") == 0)
3864           font_initial[j].height = atoi(image_config[i].value);
3865       }
3866     }
3867   }
3868
3869   for (j = 0; j < NUM_INITIAL_FONTS; j++)
3870   {
3871     font_initial[j].num_chars = DEFAULT_NUM_CHARS_PER_FONT;
3872     font_initial[j].num_chars_per_line = DEFAULT_NUM_CHARS_PER_LINE;
3873   }
3874
3875   if (filename_font_initial == NULL)    /* should not happen */
3876     Error(ERR_EXIT, "cannot get filename for '%s'", CONFIG_TOKEN_FONT_INITIAL);
3877
3878   /* create additional image buffers for double-buffering */
3879   bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
3880   bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
3881
3882   /* initialize screen properties */
3883   InitGfxFieldInfo(SX, SY, SXSIZE, SYSIZE,
3884                    REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE,
3885                    bitmap_db_field);
3886   InitGfxDoor1Info(DX, DY, DXSIZE, DYSIZE);
3887   InitGfxDoor2Info(VX, VY, VXSIZE, VYSIZE);
3888   InitGfxScrollbufferInfo(FXSIZE, FYSIZE);
3889
3890   bitmap_font_initial = LoadCustomImage(filename_font_initial);
3891
3892   for (j = 0; j < NUM_INITIAL_FONTS; j++)
3893     font_initial[j].bitmap = bitmap_font_initial;
3894
3895   InitFontGraphicInfo();
3896
3897   DrawInitText(getProgramInitString(), 20, FC_YELLOW);
3898   DrawInitText(PROGRAM_COPYRIGHT_STRING, 50, FC_RED);
3899
3900   DrawInitText("Loading graphics:", 120, FC_GREEN);
3901
3902   InitTileClipmasks();
3903 }
3904
3905 void InitGfxBackground()
3906 {
3907   int x, y;
3908
3909   drawto = backbuffer;
3910   fieldbuffer = bitmap_db_field;
3911   SetDrawtoField(DRAW_BACKBUFFER);
3912
3913   BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, backbuffer,
3914              0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
3915   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
3916   ClearRectangle(bitmap_db_door, 0, 0, 3 * DXSIZE, DYSIZE + VYSIZE);
3917
3918   for (x = 0; x < MAX_BUF_XSIZE; x++)
3919     for (y = 0; y < MAX_BUF_YSIZE; y++)
3920       redraw[x][y] = 0;
3921   redraw_tiles = 0;
3922   redraw_mask = REDRAW_ALL;
3923 }
3924
3925 static void InitLevelInfo()
3926 {
3927   LoadLevelInfo();                              /* global level info */
3928   LoadLevelSetup_LastSeries();                  /* last played series info */
3929   LoadLevelSetup_SeriesInfo();                  /* last played level info */
3930 }
3931
3932 void InitLevelArtworkInfo()
3933 {
3934   LoadLevelArtworkInfo();
3935 }
3936
3937 static void InitImages()
3938 {
3939 #if 1
3940   setLevelArtworkDir(artwork.gfx_first);
3941 #endif
3942
3943 #if 0
3944   printf("::: InitImages for '%s' ['%s', '%s'] ['%s', '%s']\n",
3945          leveldir_current->identifier,
3946          artwork.gfx_current_identifier,
3947          artwork.gfx_current->identifier,
3948          leveldir_current->graphics_set,
3949          leveldir_current->graphics_path);
3950 #endif
3951
3952   ReloadCustomImages();
3953
3954   LoadCustomElementDescriptions();
3955   LoadSpecialMenuDesignSettings();
3956
3957   ReinitializeGraphics();
3958 }
3959
3960 static void InitSound(char *identifier)
3961 {
3962   if (identifier == NULL)
3963     identifier = artwork.snd_current->identifier;
3964
3965 #if 1
3966   /* set artwork path to send it to the sound server process */
3967   setLevelArtworkDir(artwork.snd_first);
3968 #endif
3969
3970   InitReloadCustomSounds(identifier);
3971   ReinitializeSounds();
3972 }
3973
3974 static void InitMusic(char *identifier)
3975 {
3976   if (identifier == NULL)
3977     identifier = artwork.mus_current->identifier;
3978
3979 #if 1
3980   /* set artwork path to send it to the sound server process */
3981   setLevelArtworkDir(artwork.mus_first);
3982 #endif
3983
3984   InitReloadCustomMusic(identifier);
3985   ReinitializeMusic();
3986 }
3987
3988 void InitNetworkServer()
3989 {
3990 #if defined(PLATFORM_UNIX)
3991   int nr_wanted;
3992 #endif
3993
3994   if (!options.network)
3995     return;
3996
3997 #if defined(PLATFORM_UNIX)
3998   nr_wanted = Request("Choose player", REQ_PLAYER | REQ_STAY_CLOSED);
3999
4000   if (!ConnectToServer(options.server_host, options.server_port))
4001     Error(ERR_EXIT, "cannot connect to network game server");
4002
4003   SendToServer_PlayerName(setup.player_name);
4004   SendToServer_ProtocolVersion();
4005
4006   if (nr_wanted)
4007     SendToServer_NrWanted(nr_wanted);
4008 #endif
4009 }
4010
4011 static char *getNewArtworkIdentifier(int type)
4012 {
4013   static char *leveldir_current_identifier[3] = { NULL, NULL, NULL };
4014   static boolean last_override_level_artwork[3] = { FALSE, FALSE, FALSE };
4015   static boolean last_has_level_artwork_set[3] = { FALSE, FALSE, FALSE };
4016   static boolean initialized[3] = { FALSE, FALSE, FALSE };
4017   TreeInfo *artwork_first_node = ARTWORK_FIRST_NODE(artwork, type);
4018   boolean setup_override_artwork = SETUP_OVERRIDE_ARTWORK(setup, type);
4019   char *setup_artwork_set = SETUP_ARTWORK_SET(setup, type);
4020   char *leveldir_identifier = leveldir_current->identifier;
4021 #if 1
4022   /* !!! setLevelArtworkDir() should be moved to an earlier stage !!! */
4023   char *leveldir_artwork_set = setLevelArtworkDir(artwork_first_node);
4024 #else
4025   char *leveldir_artwork_set = LEVELDIR_ARTWORK_SET(leveldir_current, type);
4026 #endif
4027   boolean has_level_artwork_set = (leveldir_artwork_set != NULL);
4028   char *artwork_current_identifier;
4029   char *artwork_new_identifier = NULL;  /* default: nothing has changed */
4030
4031   /* leveldir_current may be invalid (level group, parent link) */
4032   if (!validLevelSeries(leveldir_current))
4033     return NULL;
4034
4035   /* 1st step: determine artwork set to be activated in descending order:
4036      --------------------------------------------------------------------
4037      1. setup artwork (when configured to override everything else)
4038      2. artwork set configured in "levelinfo.conf" of current level set
4039         (artwork in level directory will have priority when loading later)
4040      3. artwork in level directory (stored in artwork sub-directory)
4041      4. setup artwork (currently configured in setup menu) */
4042
4043   if (setup_override_artwork)
4044     artwork_current_identifier = setup_artwork_set;
4045   else if (leveldir_artwork_set != NULL)
4046     artwork_current_identifier = leveldir_artwork_set;
4047   else if (getTreeInfoFromIdentifier(artwork_first_node, leveldir_identifier))
4048     artwork_current_identifier = leveldir_identifier;
4049   else
4050     artwork_current_identifier = setup_artwork_set;
4051
4052
4053   /* 2nd step: check if it is really needed to reload artwork set
4054      ------------------------------------------------------------ */
4055
4056 #if 0
4057   if (type == ARTWORK_TYPE_GRAPHICS)
4058     printf("::: 0: '%s' ['%s', '%s'] ['%s' ('%s')]\n",
4059            artwork_new_identifier,
4060            ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4061            artwork_current_identifier,
4062            leveldir_current->graphics_set,
4063            leveldir_current->identifier);
4064 #endif
4065
4066   /* ---------- reload if level set and also artwork set has changed ------- */
4067   if (leveldir_current_identifier[type] != leveldir_identifier &&
4068       (last_has_level_artwork_set[type] || has_level_artwork_set))
4069     artwork_new_identifier = artwork_current_identifier;
4070
4071   leveldir_current_identifier[type] = leveldir_identifier;
4072   last_has_level_artwork_set[type] = has_level_artwork_set;
4073
4074 #if 0
4075   if (type == ARTWORK_TYPE_GRAPHICS)
4076     printf("::: 1: '%s'\n", artwork_new_identifier);
4077 #endif
4078
4079   /* ---------- reload if "override artwork" setting has changed ----------- */
4080   if (last_override_level_artwork[type] != setup_override_artwork)
4081     artwork_new_identifier = artwork_current_identifier;
4082
4083   last_override_level_artwork[type] = setup_override_artwork;
4084
4085 #if 0
4086   if (type == ARTWORK_TYPE_GRAPHICS)
4087     printf("::: 2: '%s'\n", artwork_new_identifier);
4088 #endif
4089
4090   /* ---------- reload if current artwork identifier has changed ----------- */
4091   if (strcmp(ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4092              artwork_current_identifier) != 0)
4093     artwork_new_identifier = artwork_current_identifier;
4094
4095   *(&(ARTWORK_CURRENT_IDENTIFIER(artwork, type))) = artwork_current_identifier;
4096
4097 #if 0
4098   if (type == ARTWORK_TYPE_GRAPHICS)
4099     printf("::: 3: '%s'\n", artwork_new_identifier);
4100 #endif
4101
4102   /* ---------- do not reload directly after starting ---------------------- */
4103   if (!initialized[type])
4104     artwork_new_identifier = NULL;
4105
4106   initialized[type] = TRUE;
4107
4108 #if 0
4109   if (type == ARTWORK_TYPE_GRAPHICS)
4110     printf("::: 4: '%s'\n", artwork_new_identifier);
4111 #endif
4112
4113 #if 0
4114   if (type == ARTWORK_TYPE_GRAPHICS)
4115     printf("CHECKING OLD/NEW GFX:\n- OLD: %s\n- NEW: %s ['%s', '%s'] ['%s']\n",
4116            artwork.gfx_current_identifier, artwork_current_identifier,
4117            artwork.gfx_current->identifier, leveldir_current->graphics_set,
4118            artwork_new_identifier);
4119 #endif
4120
4121   return artwork_new_identifier;
4122 }
4123
4124 void ReloadCustomArtwork(int force_reload)
4125 {
4126   char *gfx_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_GRAPHICS);
4127   char *snd_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_SOUNDS);
4128   char *mus_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_MUSIC);
4129   boolean force_reload_gfx = (force_reload & (1 << ARTWORK_TYPE_GRAPHICS));
4130   boolean force_reload_snd = (force_reload & (1 << ARTWORK_TYPE_SOUNDS));
4131   boolean force_reload_mus = (force_reload & (1 << ARTWORK_TYPE_MUSIC));
4132   boolean redraw_screen = FALSE;
4133
4134   if (gfx_new_identifier != NULL || force_reload_gfx)
4135   {
4136 #if 0
4137     printf("RELOADING GRAPHICS '%s' -> '%s' ['%s', '%s']\n",
4138            artwork.gfx_current_identifier,
4139            gfx_new_identifier,
4140            artwork.gfx_current->identifier,
4141            leveldir_current->graphics_set);
4142 #endif
4143
4144     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4145
4146     InitImages();
4147
4148 #if 0
4149     printf("... '%s'\n",
4150            leveldir_current->graphics_set);
4151 #endif
4152
4153     FreeTileClipmasks();
4154     InitTileClipmasks();
4155
4156     redraw_screen = TRUE;
4157   }
4158
4159   if (snd_new_identifier != NULL || force_reload_snd)
4160   {
4161     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4162
4163     InitSound(snd_new_identifier);
4164
4165     redraw_screen = TRUE;
4166   }
4167
4168   if (mus_new_identifier != NULL || force_reload_mus)
4169   {
4170     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4171
4172     InitMusic(mus_new_identifier);
4173
4174     redraw_screen = TRUE;
4175   }
4176
4177   if (redraw_screen)
4178   {
4179     InitGfxBackground();
4180
4181     /* force redraw of (open or closed) door graphics */
4182     SetDoorState(DOOR_OPEN_ALL);
4183     CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
4184   }
4185 }
4186
4187 void KeyboardAutoRepeatOffUnlessAutoplay()
4188 {
4189   if (global.autoplay_leveldir == NULL)
4190     KeyboardAutoRepeatOff();
4191 }
4192
4193
4194 /* ========================================================================= */
4195 /* OpenAll()                                                                 */
4196 /* ========================================================================= */
4197
4198 void OpenAll()
4199 {
4200   InitGlobal();         /* initialize some global variables */
4201
4202   if (options.execute_command)
4203     Execute_Command(options.execute_command);
4204
4205   if (options.serveronly)
4206   {
4207 #if defined(PLATFORM_UNIX)
4208     NetworkServer(options.server_port, options.serveronly);
4209 #else
4210     Error(ERR_WARN, "networking only supported in Unix version");
4211 #endif
4212     exit(0);    /* never reached */
4213   }
4214
4215   InitSetup();
4216
4217   InitPlayerInfo();
4218   InitArtworkInfo();            /* needed before loading gfx, sound & music */
4219   InitArtworkConfig();          /* needed before forking sound child process */
4220   InitMixer();
4221
4222   InitCounter();
4223
4224   InitRND(NEW_RANDOMIZE);
4225   InitSimpleRND(NEW_RANDOMIZE);
4226
4227   InitJoysticks();
4228
4229   InitVideoDisplay();
4230   InitVideoBuffer(&backbuffer, &window, WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH,
4231                   setup.fullscreen);
4232
4233   InitEventFilter(FilterMouseMotionEvents);
4234
4235   InitElementPropertiesStatic();
4236   InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
4237
4238   InitGfx();
4239
4240   InitLevelInfo();
4241   InitLevelArtworkInfo();
4242
4243   InitImages();                 /* needs to know current level directory */
4244   InitSound(NULL);              /* needs to know current level directory */
4245   InitMusic(NULL);              /* needs to know current level directory */
4246
4247   InitGfxBackground();
4248
4249   if (global.autoplay_leveldir)
4250   {
4251     AutoPlayTape();
4252     return;
4253   }
4254
4255   game_status = GAME_MODE_MAIN;
4256
4257   DrawMainMenu();
4258
4259   InitNetworkServer();
4260 }
4261
4262 void CloseAllAndExit(int exit_value)
4263 {
4264   StopSounds();
4265   FreeAllSounds();
4266   FreeAllMusic();
4267   CloseAudio();         /* called after freeing sounds (needed for SDL) */
4268
4269   FreeAllImages();
4270   FreeTileClipmasks();
4271
4272   CloseVideoDisplay();
4273   ClosePlatformDependentStuff();
4274
4275   exit(exit_value);
4276 }