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_player[] =
2262   {
2263     EL_PLAYER_1,
2264     EL_PLAYER_2,
2265     EL_PLAYER_3,
2266     EL_PLAYER_4,
2267     EL_SP_MURPHY,
2268     EL_SOKOBAN_FIELD_PLAYER,
2269     -1
2270   };
2271
2272   static int ep_can_pass_magic_wall[] =
2273   {
2274     EL_ROCK,
2275     EL_BD_ROCK,
2276     EL_EMERALD,
2277     EL_BD_DIAMOND,
2278     EL_EMERALD_YELLOW,
2279     EL_EMERALD_RED,
2280     EL_EMERALD_PURPLE,
2281     EL_DIAMOND,
2282     -1
2283   };
2284
2285   static int ep_switchable[] =
2286   {
2287     EL_ROBOT_WHEEL,
2288     EL_SP_TERMINAL,
2289     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2290     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2291     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2292     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2293     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2294     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2295     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2296     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2297     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2298     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2299     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2300     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2301     EL_SWITCHGATE_SWITCH_UP,
2302     EL_SWITCHGATE_SWITCH_DOWN,
2303     EL_LIGHT_SWITCH,
2304     EL_LIGHT_SWITCH_ACTIVE,
2305     EL_TIMEGATE_SWITCH,
2306     EL_BALLOON_SWITCH_LEFT,
2307     EL_BALLOON_SWITCH_RIGHT,
2308     EL_BALLOON_SWITCH_UP,
2309     EL_BALLOON_SWITCH_DOWN,
2310     EL_BALLOON_SWITCH_ANY,
2311     EL_LAMP,
2312     EL_TIME_ORB_FULL,
2313     -1
2314   };
2315
2316   static int ep_bd_element[] =
2317   {
2318     EL_EMPTY,
2319     EL_SAND,
2320     EL_WALL_SLIPPERY,
2321     EL_BD_WALL,
2322     EL_ROCK,
2323     EL_BD_ROCK,
2324     EL_BD_DIAMOND,
2325     EL_BD_MAGIC_WALL,
2326     EL_EXIT_CLOSED,
2327     EL_EXIT_OPEN,
2328     EL_STEELWALL,
2329     EL_PLAYER_1,
2330     EL_PLAYER_2,
2331     EL_PLAYER_3,
2332     EL_PLAYER_4,
2333     EL_BD_FIREFLY,
2334     EL_BD_FIREFLY_1,
2335     EL_BD_FIREFLY_2,
2336     EL_BD_FIREFLY_3,
2337     EL_BD_FIREFLY_4,
2338     EL_BD_BUTTERFLY,
2339     EL_BD_BUTTERFLY_1,
2340     EL_BD_BUTTERFLY_2,
2341     EL_BD_BUTTERFLY_3,
2342     EL_BD_BUTTERFLY_4,
2343     EL_BD_AMOEBA,
2344     EL_CHAR_QUESTION,
2345     EL_UNKNOWN,
2346     -1
2347   };
2348
2349   static int ep_sp_element[] =
2350   {
2351     /* should always be valid */
2352     EL_EMPTY,
2353
2354     EL_SP_EMPTY,
2355     EL_SP_ZONK,
2356     EL_SP_BASE,
2357     EL_SP_MURPHY,
2358     EL_SP_INFOTRON,
2359     EL_SP_CHIP_SINGLE,
2360     EL_SP_HARDWARE_GRAY,
2361     EL_SP_EXIT_CLOSED,
2362     EL_SP_EXIT_OPEN,
2363     EL_SP_DISK_ORANGE,
2364     EL_SP_PORT_RIGHT,
2365     EL_SP_PORT_DOWN,
2366     EL_SP_PORT_LEFT,
2367     EL_SP_PORT_UP,
2368     EL_SP_GRAVITY_PORT_RIGHT,
2369     EL_SP_GRAVITY_PORT_DOWN,
2370     EL_SP_GRAVITY_PORT_LEFT,
2371     EL_SP_GRAVITY_PORT_UP,
2372     EL_SP_SNIKSNAK,
2373     EL_SP_DISK_YELLOW,
2374     EL_SP_TERMINAL,
2375     EL_SP_DISK_RED,
2376     EL_SP_PORT_VERTICAL,
2377     EL_SP_PORT_HORIZONTAL,
2378     EL_SP_PORT_ANY,
2379     EL_SP_ELECTRON,
2380     EL_SP_BUGGY_BASE,
2381     EL_SP_CHIP_LEFT,
2382     EL_SP_CHIP_RIGHT,
2383     EL_SP_HARDWARE_BASE_1,
2384     EL_SP_HARDWARE_GREEN,
2385     EL_SP_HARDWARE_BLUE,
2386     EL_SP_HARDWARE_RED,
2387     EL_SP_HARDWARE_YELLOW,
2388     EL_SP_HARDWARE_BASE_2,
2389     EL_SP_HARDWARE_BASE_3,
2390     EL_SP_HARDWARE_BASE_4,
2391     EL_SP_HARDWARE_BASE_5,
2392     EL_SP_HARDWARE_BASE_6,
2393     EL_SP_CHIP_TOP,
2394     EL_SP_CHIP_BOTTOM,
2395     /* additional elements that appeared in newer Supaplex levels */
2396     EL_INVISIBLE_WALL,
2397     /* more than one murphy in a level results in an inactive clone */
2398     EL_SP_MURPHY_CLONE,
2399     /* runtime elements*/
2400     EL_SP_DISK_RED_ACTIVE,
2401     EL_SP_TERMINAL_ACTIVE,
2402     EL_SP_BUGGY_BASE_ACTIVATING,
2403     EL_SP_BUGGY_BASE_ACTIVE,
2404     EL_SP_EXIT_OPENING,
2405     EL_SP_EXIT_CLOSING,
2406     -1
2407   };
2408
2409   static int ep_sb_element[] =
2410   {
2411     EL_EMPTY,
2412     EL_STEELWALL,
2413     EL_SOKOBAN_OBJECT,
2414     EL_SOKOBAN_FIELD_EMPTY,
2415     EL_SOKOBAN_FIELD_FULL,
2416     EL_SOKOBAN_FIELD_PLAYER,
2417     EL_PLAYER_1,
2418     EL_PLAYER_2,
2419     EL_PLAYER_3,
2420     EL_PLAYER_4,
2421     EL_INVISIBLE_STEELWALL,
2422     -1
2423   };
2424
2425   static int ep_gem[] =
2426   {
2427     EL_BD_DIAMOND,
2428     EL_EMERALD,
2429     EL_EMERALD_YELLOW,
2430     EL_EMERALD_RED,
2431     EL_EMERALD_PURPLE,
2432     EL_DIAMOND,
2433     -1
2434   };
2435
2436   static int ep_food_dark_yamyam[] =
2437   {
2438     EL_SAND,
2439     EL_BUG,
2440     EL_SPACESHIP,
2441     EL_BD_BUTTERFLY,
2442     EL_BD_FIREFLY,
2443     EL_YAMYAM,
2444     EL_ROBOT,
2445     EL_PACMAN,
2446     EL_AMOEBA_DROP,
2447     EL_AMOEBA_DEAD,
2448     EL_AMOEBA_WET,
2449     EL_AMOEBA_DRY,
2450     EL_AMOEBA_FULL,
2451     EL_BD_AMOEBA,
2452     EL_EMERALD,
2453     EL_BD_DIAMOND,
2454     EL_EMERALD_YELLOW,
2455     EL_EMERALD_RED,
2456     EL_EMERALD_PURPLE,
2457     EL_DIAMOND,
2458     EL_PEARL,
2459     EL_CRYSTAL,
2460     -1
2461   };
2462
2463   static int ep_food_penguin[] =
2464   {
2465     EL_EMERALD,
2466     EL_BD_DIAMOND,
2467     EL_EMERALD_YELLOW,
2468     EL_EMERALD_RED,
2469     EL_EMERALD_PURPLE,
2470     EL_DIAMOND,
2471     EL_PEARL,
2472     EL_CRYSTAL,
2473     -1
2474   };
2475
2476   static int ep_food_pig[] =
2477   {
2478     EL_EMERALD,
2479     EL_BD_DIAMOND,
2480     EL_EMERALD_YELLOW,
2481     EL_EMERALD_RED,
2482     EL_EMERALD_PURPLE,
2483     EL_DIAMOND,
2484     -1
2485   };
2486
2487   static int ep_historic_wall[] =
2488   {
2489     EL_STEELWALL,
2490     EL_GATE_1,
2491     EL_GATE_2,
2492     EL_GATE_3,
2493     EL_GATE_4,
2494     EL_GATE_1_GRAY,
2495     EL_GATE_2_GRAY,
2496     EL_GATE_3_GRAY,
2497     EL_GATE_4_GRAY,
2498     EL_EM_GATE_1,
2499     EL_EM_GATE_2,
2500     EL_EM_GATE_3,
2501     EL_EM_GATE_4,
2502     EL_EM_GATE_1_GRAY,
2503     EL_EM_GATE_2_GRAY,
2504     EL_EM_GATE_3_GRAY,
2505     EL_EM_GATE_4_GRAY,
2506     EL_EXIT_CLOSED,
2507     EL_EXIT_OPENING,
2508     EL_EXIT_OPEN,
2509     EL_WALL,
2510     EL_WALL_SLIPPERY,
2511     EL_EXPANDABLE_WALL,
2512     EL_EXPANDABLE_WALL_HORIZONTAL,
2513     EL_EXPANDABLE_WALL_VERTICAL,
2514     EL_EXPANDABLE_WALL_ANY,
2515     EL_EXPANDABLE_WALL_GROWING,
2516     EL_BD_WALL,
2517     EL_SP_CHIP_SINGLE,
2518     EL_SP_CHIP_LEFT,
2519     EL_SP_CHIP_RIGHT,
2520     EL_SP_CHIP_TOP,
2521     EL_SP_CHIP_BOTTOM,
2522     EL_SP_HARDWARE_GRAY,
2523     EL_SP_HARDWARE_GREEN,
2524     EL_SP_HARDWARE_BLUE,
2525     EL_SP_HARDWARE_RED,
2526     EL_SP_HARDWARE_YELLOW,
2527     EL_SP_HARDWARE_BASE_1,
2528     EL_SP_HARDWARE_BASE_2,
2529     EL_SP_HARDWARE_BASE_3,
2530     EL_SP_HARDWARE_BASE_4,
2531     EL_SP_HARDWARE_BASE_5,
2532     EL_SP_HARDWARE_BASE_6,
2533     EL_SP_TERMINAL,
2534     EL_SP_TERMINAL_ACTIVE,
2535     EL_SP_EXIT_CLOSED,
2536     EL_SP_EXIT_OPEN,
2537     EL_INVISIBLE_STEELWALL,
2538     EL_INVISIBLE_STEELWALL_ACTIVE,
2539     EL_INVISIBLE_WALL,
2540     EL_INVISIBLE_WALL_ACTIVE,
2541     EL_STEELWALL_SLIPPERY,
2542     EL_EMC_STEELWALL_1,
2543     EL_EMC_STEELWALL_2,
2544     EL_EMC_STEELWALL_3,
2545     EL_EMC_STEELWALL_4,
2546     EL_EMC_WALL_1,
2547     EL_EMC_WALL_2,
2548     EL_EMC_WALL_3,
2549     EL_EMC_WALL_4,
2550     EL_EMC_WALL_5,
2551     EL_EMC_WALL_6,
2552     EL_EMC_WALL_7,
2553     EL_EMC_WALL_8,
2554     -1
2555   };
2556
2557   static int ep_historic_solid[] =
2558   {
2559     EL_WALL,
2560     EL_EXPANDABLE_WALL,
2561     EL_EXPANDABLE_WALL_HORIZONTAL,
2562     EL_EXPANDABLE_WALL_VERTICAL,
2563     EL_EXPANDABLE_WALL_ANY,
2564     EL_BD_WALL,
2565     EL_WALL_SLIPPERY,
2566     EL_EXIT_CLOSED,
2567     EL_EXIT_OPENING,
2568     EL_EXIT_OPEN,
2569     EL_AMOEBA_DEAD,
2570     EL_AMOEBA_WET,
2571     EL_AMOEBA_DRY,
2572     EL_AMOEBA_FULL,
2573     EL_BD_AMOEBA,
2574     EL_QUICKSAND_EMPTY,
2575     EL_QUICKSAND_FULL,
2576     EL_QUICKSAND_FILLING,
2577     EL_QUICKSAND_EMPTYING,
2578     EL_MAGIC_WALL,
2579     EL_MAGIC_WALL_ACTIVE,
2580     EL_MAGIC_WALL_EMPTYING,
2581     EL_MAGIC_WALL_FILLING,
2582     EL_MAGIC_WALL_FULL,
2583     EL_MAGIC_WALL_DEAD,
2584     EL_BD_MAGIC_WALL,
2585     EL_BD_MAGIC_WALL_ACTIVE,
2586     EL_BD_MAGIC_WALL_EMPTYING,
2587     EL_BD_MAGIC_WALL_FULL,
2588     EL_BD_MAGIC_WALL_FILLING,
2589     EL_BD_MAGIC_WALL_DEAD,
2590     EL_GAME_OF_LIFE,
2591     EL_BIOMAZE,
2592     EL_SP_CHIP_SINGLE,
2593     EL_SP_CHIP_LEFT,
2594     EL_SP_CHIP_RIGHT,
2595     EL_SP_CHIP_TOP,
2596     EL_SP_CHIP_BOTTOM,
2597     EL_SP_TERMINAL,
2598     EL_SP_TERMINAL_ACTIVE,
2599     EL_SP_EXIT_CLOSED,
2600     EL_SP_EXIT_OPEN,
2601     EL_INVISIBLE_WALL,
2602     EL_INVISIBLE_WALL_ACTIVE,
2603     EL_SWITCHGATE_SWITCH_UP,
2604     EL_SWITCHGATE_SWITCH_DOWN,
2605     EL_TIMEGATE_SWITCH,
2606     EL_TIMEGATE_SWITCH_ACTIVE,
2607     EL_EMC_WALL_1,
2608     EL_EMC_WALL_2,
2609     EL_EMC_WALL_3,
2610     EL_EMC_WALL_4,
2611     EL_EMC_WALL_5,
2612     EL_EMC_WALL_6,
2613     EL_EMC_WALL_7,
2614     EL_EMC_WALL_8,
2615     EL_WALL_PEARL,
2616     EL_WALL_CRYSTAL,
2617
2618     /* the following elements are a direct copy of "indestructible" elements,
2619        except "EL_ACID", which is "indestructible", but not "solid"! */
2620 #if 0
2621     EL_ACID,
2622 #endif
2623     EL_STEELWALL,
2624     EL_ACID_POOL_TOPLEFT,
2625     EL_ACID_POOL_TOPRIGHT,
2626     EL_ACID_POOL_BOTTOMLEFT,
2627     EL_ACID_POOL_BOTTOM,
2628     EL_ACID_POOL_BOTTOMRIGHT,
2629     EL_SP_HARDWARE_GRAY,
2630     EL_SP_HARDWARE_GREEN,
2631     EL_SP_HARDWARE_BLUE,
2632     EL_SP_HARDWARE_RED,
2633     EL_SP_HARDWARE_YELLOW,
2634     EL_SP_HARDWARE_BASE_1,
2635     EL_SP_HARDWARE_BASE_2,
2636     EL_SP_HARDWARE_BASE_3,
2637     EL_SP_HARDWARE_BASE_4,
2638     EL_SP_HARDWARE_BASE_5,
2639     EL_SP_HARDWARE_BASE_6,
2640     EL_INVISIBLE_STEELWALL,
2641     EL_INVISIBLE_STEELWALL_ACTIVE,
2642     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2643     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2644     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2645     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2646     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2647     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2648     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2649     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2650     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2651     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2652     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2653     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2654     EL_LIGHT_SWITCH,
2655     EL_LIGHT_SWITCH_ACTIVE,
2656     EL_SIGN_EXCLAMATION,
2657     EL_SIGN_RADIOACTIVITY,
2658     EL_SIGN_STOP,
2659     EL_SIGN_WHEELCHAIR,
2660     EL_SIGN_PARKING,
2661     EL_SIGN_ONEWAY,
2662     EL_SIGN_HEART,
2663     EL_SIGN_TRIANGLE,
2664     EL_SIGN_ROUND,
2665     EL_SIGN_EXIT,
2666     EL_SIGN_YINYANG,
2667     EL_SIGN_OTHER,
2668     EL_STEELWALL_SLIPPERY,
2669     EL_EMC_STEELWALL_1,
2670     EL_EMC_STEELWALL_2,
2671     EL_EMC_STEELWALL_3,
2672     EL_EMC_STEELWALL_4,
2673     EL_CRYSTAL,
2674     EL_GATE_1,
2675     EL_GATE_2,
2676     EL_GATE_3,
2677     EL_GATE_4,
2678     EL_GATE_1_GRAY,
2679     EL_GATE_2_GRAY,
2680     EL_GATE_3_GRAY,
2681     EL_GATE_4_GRAY,
2682     EL_EM_GATE_1,
2683     EL_EM_GATE_2,
2684     EL_EM_GATE_3,
2685     EL_EM_GATE_4,
2686     EL_EM_GATE_1_GRAY,
2687     EL_EM_GATE_2_GRAY,
2688     EL_EM_GATE_3_GRAY,
2689     EL_EM_GATE_4_GRAY,
2690     EL_SWITCHGATE_OPEN,
2691     EL_SWITCHGATE_OPENING,
2692     EL_SWITCHGATE_CLOSED,
2693     EL_SWITCHGATE_CLOSING,
2694     EL_TIMEGATE_OPEN,
2695     EL_TIMEGATE_OPENING,
2696     EL_TIMEGATE_CLOSED,
2697     EL_TIMEGATE_CLOSING,
2698     EL_TUBE_ANY,
2699     EL_TUBE_VERTICAL,
2700     EL_TUBE_HORIZONTAL,
2701     EL_TUBE_VERTICAL_LEFT,
2702     EL_TUBE_VERTICAL_RIGHT,
2703     EL_TUBE_HORIZONTAL_UP,
2704     EL_TUBE_HORIZONTAL_DOWN,
2705     EL_TUBE_LEFT_UP,
2706     EL_TUBE_LEFT_DOWN,
2707     EL_TUBE_RIGHT_UP,
2708     EL_TUBE_RIGHT_DOWN,
2709     -1
2710   };
2711
2712   static int ep_classic_enemy[] =
2713   {
2714     EL_BUG,
2715     EL_SPACESHIP,
2716     EL_BD_BUTTERFLY,
2717     EL_BD_FIREFLY,
2718
2719     EL_YAMYAM,
2720     EL_DARK_YAMYAM,
2721     EL_ROBOT,
2722     EL_PACMAN,
2723     EL_SP_SNIKSNAK,
2724     EL_SP_ELECTRON,
2725     -1
2726   };
2727
2728   static int ep_belt[] =
2729   {
2730     EL_CONVEYOR_BELT_1_LEFT,
2731     EL_CONVEYOR_BELT_1_MIDDLE,
2732     EL_CONVEYOR_BELT_1_RIGHT,
2733     EL_CONVEYOR_BELT_2_LEFT,
2734     EL_CONVEYOR_BELT_2_MIDDLE,
2735     EL_CONVEYOR_BELT_2_RIGHT,
2736     EL_CONVEYOR_BELT_3_LEFT,
2737     EL_CONVEYOR_BELT_3_MIDDLE,
2738     EL_CONVEYOR_BELT_3_RIGHT,
2739     EL_CONVEYOR_BELT_4_LEFT,
2740     EL_CONVEYOR_BELT_4_MIDDLE,
2741     EL_CONVEYOR_BELT_4_RIGHT,
2742     -1
2743   };
2744
2745   static int ep_belt_active[] =
2746   {
2747     EL_CONVEYOR_BELT_1_LEFT_ACTIVE,
2748     EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE,
2749     EL_CONVEYOR_BELT_1_RIGHT_ACTIVE,
2750     EL_CONVEYOR_BELT_2_LEFT_ACTIVE,
2751     EL_CONVEYOR_BELT_2_MIDDLE_ACTIVE,
2752     EL_CONVEYOR_BELT_2_RIGHT_ACTIVE,
2753     EL_CONVEYOR_BELT_3_LEFT_ACTIVE,
2754     EL_CONVEYOR_BELT_3_MIDDLE_ACTIVE,
2755     EL_CONVEYOR_BELT_3_RIGHT_ACTIVE,
2756     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
2757     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
2758     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
2759     -1
2760   };
2761
2762   static int ep_belt_switch[] =
2763   {
2764     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2765     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2766     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2767     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2768     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2769     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2770     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2771     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2772     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2773     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2774     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2775     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2776     -1
2777   };
2778
2779   static int ep_tube[] =
2780   {
2781     EL_TUBE_LEFT_UP,
2782     EL_TUBE_LEFT_DOWN,
2783     EL_TUBE_RIGHT_UP,
2784     EL_TUBE_RIGHT_DOWN,
2785     EL_TUBE_HORIZONTAL,
2786     EL_TUBE_HORIZONTAL_UP,
2787     EL_TUBE_HORIZONTAL_DOWN,
2788     EL_TUBE_VERTICAL,
2789     EL_TUBE_VERTICAL_LEFT,
2790     EL_TUBE_VERTICAL_RIGHT,
2791     EL_TUBE_ANY,
2792     -1
2793   };
2794
2795   static int ep_keygate[] =
2796   {
2797     EL_GATE_1,
2798     EL_GATE_2,
2799     EL_GATE_3,
2800     EL_GATE_4,
2801     EL_GATE_1_GRAY,
2802     EL_GATE_2_GRAY,
2803     EL_GATE_3_GRAY,
2804     EL_GATE_4_GRAY,
2805     EL_EM_GATE_1,
2806     EL_EM_GATE_2,
2807     EL_EM_GATE_3,
2808     EL_EM_GATE_4,
2809     EL_EM_GATE_1_GRAY,
2810     EL_EM_GATE_2_GRAY,
2811     EL_EM_GATE_3_GRAY,
2812     EL_EM_GATE_4_GRAY,
2813     -1
2814   };
2815
2816   static int ep_amoeboid[] =
2817   {
2818     EL_AMOEBA_DEAD,
2819     EL_AMOEBA_WET,
2820     EL_AMOEBA_DRY,
2821     EL_AMOEBA_FULL,
2822     EL_BD_AMOEBA,
2823     -1
2824   };
2825
2826   static int ep_amoebalive[] =
2827   {
2828     EL_AMOEBA_WET,
2829     EL_AMOEBA_DRY,
2830     EL_AMOEBA_FULL,
2831     EL_BD_AMOEBA,
2832     -1
2833   };
2834
2835   static int ep_has_content[] =
2836   {
2837     EL_YAMYAM,
2838     EL_AMOEBA_WET,
2839     EL_AMOEBA_DRY,
2840     EL_AMOEBA_FULL,
2841     EL_BD_AMOEBA,
2842     -1
2843   };
2844
2845   static int ep_can_turn_each_move[] =
2846   {
2847     /* !!! do something with this one !!! */
2848     -1
2849   };
2850
2851   static int ep_can_grow[] =
2852   {
2853     EL_BD_AMOEBA,
2854     EL_AMOEBA_DROP,
2855     EL_AMOEBA_WET,
2856     EL_AMOEBA_DRY,
2857     EL_AMOEBA_FULL,
2858     EL_GAME_OF_LIFE,
2859     EL_BIOMAZE,
2860     -1
2861   };
2862
2863   static int ep_active_bomb[] =
2864   {
2865     EL_DYNAMITE_ACTIVE,
2866     EL_DYNABOMB_PLAYER_1_ACTIVE,
2867     EL_DYNABOMB_PLAYER_2_ACTIVE,
2868     EL_DYNABOMB_PLAYER_3_ACTIVE,
2869     EL_DYNABOMB_PLAYER_4_ACTIVE,
2870     EL_SP_DISK_RED_ACTIVE,
2871     -1
2872   };
2873
2874   static int ep_inactive[] =
2875   {
2876     EL_EMPTY,
2877     EL_SAND,
2878     EL_WALL,
2879     EL_BD_WALL,
2880     EL_WALL_SLIPPERY,
2881     EL_STEELWALL,
2882     EL_AMOEBA_DEAD,
2883     EL_QUICKSAND_EMPTY,
2884     EL_STONEBLOCK,
2885     EL_ROBOT_WHEEL,
2886     EL_KEY_1,
2887     EL_KEY_2,
2888     EL_KEY_3,
2889     EL_KEY_4,
2890     EL_EM_KEY_1,
2891     EL_EM_KEY_2,
2892     EL_EM_KEY_3,
2893     EL_EM_KEY_4,
2894     EL_GATE_1,
2895     EL_GATE_2,
2896     EL_GATE_3,
2897     EL_GATE_4,
2898     EL_GATE_1_GRAY,
2899     EL_GATE_2_GRAY,
2900     EL_GATE_3_GRAY,
2901     EL_GATE_4_GRAY,
2902     EL_EM_GATE_1,
2903     EL_EM_GATE_2,
2904     EL_EM_GATE_3,
2905     EL_EM_GATE_4,
2906     EL_EM_GATE_1_GRAY,
2907     EL_EM_GATE_2_GRAY,
2908     EL_EM_GATE_3_GRAY,
2909     EL_EM_GATE_4_GRAY,
2910     EL_DYNAMITE,
2911     EL_INVISIBLE_STEELWALL,
2912     EL_INVISIBLE_WALL,
2913     EL_INVISIBLE_SAND,
2914     EL_LAMP,
2915     EL_LAMP_ACTIVE,
2916     EL_WALL_EMERALD,
2917     EL_WALL_DIAMOND,
2918     EL_WALL_BD_DIAMOND,
2919     EL_WALL_EMERALD_YELLOW,
2920     EL_DYNABOMB_INCREASE_NUMBER,
2921     EL_DYNABOMB_INCREASE_SIZE,
2922     EL_DYNABOMB_INCREASE_POWER,
2923 #if 0
2924     EL_SOKOBAN_OBJECT,
2925 #endif
2926     EL_SOKOBAN_FIELD_EMPTY,
2927     EL_SOKOBAN_FIELD_FULL,
2928     EL_WALL_EMERALD_RED,
2929     EL_WALL_EMERALD_PURPLE,
2930     EL_ACID_POOL_TOPLEFT,
2931     EL_ACID_POOL_TOPRIGHT,
2932     EL_ACID_POOL_BOTTOMLEFT,
2933     EL_ACID_POOL_BOTTOM,
2934     EL_ACID_POOL_BOTTOMRIGHT,
2935     EL_MAGIC_WALL,
2936     EL_MAGIC_WALL_DEAD,
2937     EL_BD_MAGIC_WALL,
2938     EL_BD_MAGIC_WALL_DEAD,
2939     EL_AMOEBA_TO_DIAMOND,
2940     EL_BLOCKED,
2941     EL_SP_EMPTY,
2942     EL_SP_BASE,
2943     EL_SP_PORT_RIGHT,
2944     EL_SP_PORT_DOWN,
2945     EL_SP_PORT_LEFT,
2946     EL_SP_PORT_UP,
2947     EL_SP_GRAVITY_PORT_RIGHT,
2948     EL_SP_GRAVITY_PORT_DOWN,
2949     EL_SP_GRAVITY_PORT_LEFT,
2950     EL_SP_GRAVITY_PORT_UP,
2951     EL_SP_PORT_HORIZONTAL,
2952     EL_SP_PORT_VERTICAL,
2953     EL_SP_PORT_ANY,
2954     EL_SP_DISK_RED,
2955 #if 0
2956     EL_SP_DISK_YELLOW,
2957 #endif
2958     EL_SP_CHIP_SINGLE,
2959     EL_SP_CHIP_LEFT,
2960     EL_SP_CHIP_RIGHT,
2961     EL_SP_CHIP_TOP,
2962     EL_SP_CHIP_BOTTOM,
2963     EL_SP_HARDWARE_GRAY,
2964     EL_SP_HARDWARE_GREEN,
2965     EL_SP_HARDWARE_BLUE,
2966     EL_SP_HARDWARE_RED,
2967     EL_SP_HARDWARE_YELLOW,
2968     EL_SP_HARDWARE_BASE_1,
2969     EL_SP_HARDWARE_BASE_2,
2970     EL_SP_HARDWARE_BASE_3,
2971     EL_SP_HARDWARE_BASE_4,
2972     EL_SP_HARDWARE_BASE_5,
2973     EL_SP_HARDWARE_BASE_6,
2974     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2975     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2976     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2977     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2978     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2979     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2980     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2981     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2982     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2983     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2984     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2985     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2986     EL_SIGN_EXCLAMATION,
2987     EL_SIGN_RADIOACTIVITY,
2988     EL_SIGN_STOP,
2989     EL_SIGN_WHEELCHAIR,
2990     EL_SIGN_PARKING,
2991     EL_SIGN_ONEWAY,
2992     EL_SIGN_HEART,
2993     EL_SIGN_TRIANGLE,
2994     EL_SIGN_ROUND,
2995     EL_SIGN_EXIT,
2996     EL_SIGN_YINYANG,
2997     EL_SIGN_OTHER,
2998     EL_STEELWALL_SLIPPERY,
2999     EL_EMC_STEELWALL_1,
3000     EL_EMC_STEELWALL_2,
3001     EL_EMC_STEELWALL_3,
3002     EL_EMC_STEELWALL_4,
3003     EL_EMC_WALL_1,
3004     EL_EMC_WALL_2,
3005     EL_EMC_WALL_3,
3006     EL_EMC_WALL_4,
3007     EL_EMC_WALL_5,
3008     EL_EMC_WALL_6,
3009     EL_EMC_WALL_7,
3010     EL_EMC_WALL_8,
3011     -1
3012   };
3013
3014   static int ep_em_slippery_wall[] =
3015   {
3016     -1
3017   };
3018
3019   static int ep_gfx_crumbled[] =
3020   {
3021     EL_SAND,
3022     EL_LANDMINE,
3023     EL_TRAP,
3024     EL_TRAP_ACTIVE,
3025     -1
3026   };
3027
3028   static struct
3029   {
3030     int *elements;
3031     int property;
3032   } element_properties[] =
3033   {
3034     { ep_diggable,              EP_DIGGABLE             },
3035     { ep_collectible_only,      EP_COLLECTIBLE_ONLY     },
3036     { ep_dont_run_into,         EP_DONT_RUN_INTO        },
3037     { ep_dont_collide_with,     EP_DONT_COLLIDE_WITH    },
3038     { ep_dont_touch,            EP_DONT_TOUCH           },
3039     { ep_indestructible,        EP_INDESTRUCTIBLE       },
3040     { ep_slippery,              EP_SLIPPERY             },
3041     { ep_can_change,            EP_CAN_CHANGE           },
3042     { ep_can_move,              EP_CAN_MOVE             },
3043     { ep_can_fall,              EP_CAN_FALL             },
3044     { ep_can_smash_player,      EP_CAN_SMASH_PLAYER     },
3045     { ep_can_smash_enemies,     EP_CAN_SMASH_ENEMIES    },
3046     { ep_can_smash_everything,  EP_CAN_SMASH_EVERYTHING },
3047     { ep_can_explode_by_fire,   EP_CAN_EXPLODE_BY_FIRE  },
3048     { ep_can_explode_smashed,   EP_CAN_EXPLODE_SMASHED  },
3049     { ep_can_explode_impact,    EP_CAN_EXPLODE_IMPACT   },
3050     { ep_walkable_over,         EP_WALKABLE_OVER        },
3051     { ep_walkable_inside,       EP_WALKABLE_INSIDE      },
3052     { ep_walkable_under,        EP_WALKABLE_UNDER       },
3053     { ep_passable_over,         EP_PASSABLE_OVER        },
3054     { ep_passable_inside,       EP_PASSABLE_INSIDE      },
3055     { ep_passable_under,        EP_PASSABLE_UNDER       },
3056     { ep_droppable,             EP_DROPPABLE            },
3057     { ep_can_explode_1x1,       EP_CAN_EXPLODE_1X1      },
3058     { ep_pushable,              EP_PUSHABLE             },
3059     { ep_can_explode_cross,     EP_CAN_EXPLODE_CROSS    },
3060     { ep_protected,             EP_PROTECTED            },
3061
3062     { ep_player,                EP_PLAYER               },
3063     { ep_can_pass_magic_wall,   EP_CAN_PASS_MAGIC_WALL  },
3064     { ep_switchable,            EP_SWITCHABLE           },
3065     { ep_bd_element,            EP_BD_ELEMENT           },
3066     { ep_sp_element,            EP_SP_ELEMENT           },
3067     { ep_sb_element,            EP_SB_ELEMENT           },
3068     { ep_gem,                   EP_GEM                  },
3069     { ep_food_dark_yamyam,      EP_FOOD_DARK_YAMYAM     },
3070     { ep_food_penguin,          EP_FOOD_PENGUIN         },
3071     { ep_food_pig,              EP_FOOD_PIG             },
3072     { ep_historic_wall,         EP_HISTORIC_WALL        },
3073     { ep_historic_solid,        EP_HISTORIC_SOLID       },
3074     { ep_classic_enemy,         EP_CLASSIC_ENEMY        },
3075     { ep_belt,                  EP_BELT                 },
3076     { ep_belt_active,           EP_BELT_ACTIVE          },
3077     { ep_belt_switch,           EP_BELT_SWITCH          },
3078     { ep_tube,                  EP_TUBE                 },
3079     { ep_keygate,               EP_KEYGATE              },
3080     { ep_amoeboid,              EP_AMOEBOID             },
3081     { ep_amoebalive,            EP_AMOEBALIVE           },
3082     { ep_has_content,           EP_HAS_CONTENT          },
3083     { ep_can_turn_each_move,    EP_CAN_TURN_EACH_MOVE   },
3084     { ep_can_grow,              EP_CAN_GROW             },
3085     { ep_active_bomb,           EP_ACTIVE_BOMB          },
3086     { ep_inactive,              EP_INACTIVE             },
3087
3088     { ep_em_slippery_wall,      EP_EM_SLIPPERY_WALL     },
3089
3090     { ep_gfx_crumbled,          EP_GFX_CRUMBLED         },
3091
3092     { NULL,                     -1                      }
3093   };
3094
3095   static int copy_properties[][5] =
3096   {
3097     {
3098       EL_BUG,
3099       EL_BUG_LEFT,              EL_BUG_RIGHT,
3100       EL_BUG_UP,                EL_BUG_DOWN
3101     },
3102     {
3103       EL_SPACESHIP,
3104       EL_SPACESHIP_LEFT,        EL_SPACESHIP_RIGHT,
3105       EL_SPACESHIP_UP,          EL_SPACESHIP_DOWN
3106     },
3107     {
3108       EL_BD_BUTTERFLY,
3109       EL_BD_BUTTERFLY_LEFT,     EL_BD_BUTTERFLY_RIGHT,
3110       EL_BD_BUTTERFLY_UP,       EL_BD_BUTTERFLY_DOWN
3111     },
3112     {
3113       EL_BD_FIREFLY,
3114       EL_BD_FIREFLY_LEFT,       EL_BD_FIREFLY_RIGHT,
3115       EL_BD_FIREFLY_UP,         EL_BD_FIREFLY_DOWN
3116     },
3117     {
3118       EL_PACMAN,
3119       EL_PACMAN_LEFT,           EL_PACMAN_RIGHT,
3120       EL_PACMAN_UP,             EL_PACMAN_DOWN
3121     },
3122     {
3123       EL_MOLE,
3124       EL_MOLE_LEFT,             EL_MOLE_RIGHT,
3125       EL_MOLE_UP,               EL_MOLE_DOWN
3126     },
3127     {
3128       -1,
3129       -1, -1, -1, -1
3130     }
3131   };
3132
3133   int i, j, k;
3134
3135   /* always start with reliable default values (element has no properties) */
3136   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3137     for (j = 0; j < NUM_ELEMENT_PROPERTIES; j++)
3138       SET_PROPERTY(i, j, FALSE);
3139
3140   /* set all base element properties from above array definitions */
3141   for (i = 0; element_properties[i].elements != NULL; i++)
3142     for (j = 0; (element_properties[i].elements)[j] != -1; j++)
3143       SET_PROPERTY((element_properties[i].elements)[j],
3144                    element_properties[i].property, TRUE);
3145
3146   /* copy properties to some elements that are only stored in level file */
3147   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
3148     for (j = 0; copy_properties[j][0] != -1; j++)
3149       if (HAS_PROPERTY(copy_properties[j][0], i))
3150         for (k = 1; k <= 4; k++)
3151           SET_PROPERTY(copy_properties[j][k], i, TRUE);
3152 }
3153
3154 void InitElementPropertiesEngine(int engine_version)
3155 {
3156 #if 0
3157   static int active_properties[] =
3158   {
3159     EP_AMOEBALIVE,
3160     EP_AMOEBOID,
3161     EP_PFORTE,
3162     EP_DONT_COLLIDE_WITH,
3163     EP_MAUER,
3164     EP_CAN_FALL,
3165     EP_CAN_SMASH,
3166     EP_CAN_PASS_MAGIC_WALL,
3167     EP_CAN_MOVE,
3168     EP_DONT_TOUCH,
3169     EP_DONT_RUN_INTO,
3170     EP_GEM,
3171     EP_CAN_EXPLODE_BY_FIRE,
3172     EP_PUSHABLE,
3173     EP_PLAYER,
3174     EP_HAS_CONTENT,
3175     EP_DIGGABLE,
3176     EP_PASSABLE_INSIDE,
3177     EP_OVER_PLAYER,
3178     EP_ACTIVE_BOMB,
3179
3180     EP_BELT,
3181     EP_BELT_ACTIVE,
3182     EP_BELT_SWITCH,
3183     EP_WALKABLE_UNDER,
3184     EP_EM_SLIPPERY_WALL,
3185   };
3186 #endif
3187
3188   static int no_wall_properties[] =
3189   {
3190     EP_DIGGABLE,
3191     EP_COLLECTIBLE_ONLY,
3192     EP_DONT_RUN_INTO,
3193     EP_DONT_COLLIDE_WITH,
3194     EP_CAN_MOVE,
3195     EP_CAN_FALL,
3196     EP_CAN_SMASH_PLAYER,
3197     EP_CAN_SMASH_ENEMIES,
3198     EP_CAN_SMASH_EVERYTHING,
3199     EP_PUSHABLE,
3200
3201     EP_PLAYER,
3202     EP_GEM,
3203     EP_FOOD_DARK_YAMYAM,
3204     EP_FOOD_PENGUIN,
3205     EP_BELT,
3206     EP_BELT_ACTIVE,
3207     EP_TUBE,
3208     EP_AMOEBOID,
3209     EP_AMOEBALIVE,
3210     EP_ACTIVE_BOMB,
3211
3212     EP_ACCESSIBLE,
3213
3214     -1
3215   };
3216
3217   int i, j;
3218
3219 #if 0
3220   InitElementPropertiesStatic();
3221 #endif
3222
3223   /* important: after initialization in InitElementPropertiesStatic(), the
3224      elements are not again initialized to a default value; therefore all
3225      changes have to make sure that they leave the element with a defined
3226      property (which means that conditional property changes must be set to
3227      a reliable default value before) */
3228
3229   /* set all special, combined or engine dependent element properties */
3230   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3231   {
3232 #if 0
3233     for (j = EP_ACCESSIBLE_OVER; j < NUM_ELEMENT_PROPERTIES; j++)
3234       SET_PROPERTY(i, j, FALSE);
3235 #endif
3236
3237     /* ---------- INACTIVE ------------------------------------------------- */
3238     SET_PROPERTY(i, EP_INACTIVE, (i >= EL_CHAR_START && i <= EL_CHAR_END));
3239
3240     /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
3241     SET_PROPERTY(i, EP_WALKABLE, (IS_WALKABLE_OVER(i) ||
3242                                   IS_WALKABLE_INSIDE(i) ||
3243                                   IS_WALKABLE_UNDER(i)));
3244
3245     SET_PROPERTY(i, EP_PASSABLE, (IS_PASSABLE_OVER(i) ||
3246                                   IS_PASSABLE_INSIDE(i) ||
3247                                   IS_PASSABLE_UNDER(i)));
3248
3249     SET_PROPERTY(i, EP_ACCESSIBLE_OVER, (IS_WALKABLE_OVER(i) ||
3250                                          IS_PASSABLE_OVER(i)));
3251
3252     SET_PROPERTY(i, EP_ACCESSIBLE_INSIDE, (IS_WALKABLE_INSIDE(i) ||
3253                                            IS_PASSABLE_INSIDE(i)));
3254
3255     SET_PROPERTY(i, EP_ACCESSIBLE_UNDER, (IS_WALKABLE_UNDER(i) ||
3256                                           IS_PASSABLE_UNDER(i)));
3257
3258     SET_PROPERTY(i, EP_ACCESSIBLE, (IS_WALKABLE(i) ||
3259                                     IS_PASSABLE(i)));
3260
3261     /* ---------- COLLECTIBLE ---------------------------------------------- */
3262     SET_PROPERTY(i, EP_COLLECTIBLE, (IS_COLLECTIBLE_ONLY(i) ||
3263                                      IS_DROPPABLE(i)));
3264
3265     /* ---------- SNAPPABLE ------------------------------------------------ */
3266     SET_PROPERTY(i, EP_SNAPPABLE, (IS_DIGGABLE(i) ||
3267                                    IS_COLLECTIBLE(i) ||
3268                                    IS_SWITCHABLE(i) ||
3269                                    i == EL_BD_ROCK));
3270
3271     /* ---------- WALL ----------------------------------------------------- */
3272     SET_PROPERTY(i, EP_WALL, TRUE);     /* default: element is wall */
3273
3274     for (j = 0; no_wall_properties[j] != -1; j++)
3275       if (HAS_PROPERTY(i, no_wall_properties[j]) ||
3276           i >= EL_FIRST_RUNTIME_UNREAL)
3277         SET_PROPERTY(i, EP_WALL, FALSE);
3278
3279     if (IS_HISTORIC_WALL(i))
3280       SET_PROPERTY(i, EP_WALL, TRUE);
3281
3282     /* ---------- SOLID_FOR_PUSHING ---------------------------------------- */
3283     if (engine_version < VERSION_IDENT(2,2,0,0))
3284       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, IS_HISTORIC_SOLID(i));
3285     else
3286       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, (!IS_WALKABLE(i) &&
3287                                              !IS_DIGGABLE(i) &&
3288                                              !IS_COLLECTIBLE(i)));
3289
3290 #if 1
3291     /* ---------- PROTECTED ------------------------------------------------ */
3292     if (IS_ACCESSIBLE_INSIDE(i))
3293       SET_PROPERTY(i, EP_PROTECTED, TRUE);
3294 #endif
3295
3296     /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
3297
3298     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
3299       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
3300     else
3301       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, (IS_CUSTOM_ELEMENT(i) &&
3302                                             IS_INDESTRUCTIBLE(i)));
3303
3304     /* ---------- EXPLOSION_PROOF ------------------------------------------ */
3305     if (i == EL_FLAMES)
3306       SET_PROPERTY(i, EP_EXPLOSION_PROOF, TRUE);
3307     else if (engine_version < VERSION_IDENT(2,2,0,0))
3308       SET_PROPERTY(i, EP_EXPLOSION_PROOF, IS_INDESTRUCTIBLE(i));
3309     else
3310 #if 1
3311       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3312                                            (!IS_WALKABLE(i) ||
3313                                             IS_PROTECTED(i))));
3314 #else
3315 #if 1
3316       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3317                                            !IS_WALKABLE_OVER(i) &&
3318                                            !IS_WALKABLE_UNDER(i)));
3319 #else
3320       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3321                                            IS_PROTECTED(i)));
3322 #endif
3323 #endif
3324
3325     if (IS_CUSTOM_ELEMENT(i))
3326     {
3327       /* these are additional properties which are initially false when set */
3328
3329       /* ---------- DONT_COLLIDE_WITH / DONT_RUN_INTO ---------------------- */
3330       if (DONT_TOUCH(i))
3331         SET_PROPERTY(i, EP_DONT_COLLIDE_WITH, TRUE);
3332       if (DONT_COLLIDE_WITH(i))
3333         SET_PROPERTY(i, EP_DONT_RUN_INTO, TRUE);
3334
3335       /* ---------- CAN_SMASH_ENEMIES / CAN_SMASH_PLAYER ------------------- */
3336       if (CAN_SMASH_EVERYTHING(i))
3337         SET_PROPERTY(i, EP_CAN_SMASH_ENEMIES, TRUE);
3338       if (CAN_SMASH_ENEMIES(i))
3339         SET_PROPERTY(i, EP_CAN_SMASH_PLAYER, TRUE);
3340     }
3341
3342     /* ---------- CAN_SMASH ------------------------------------------------ */
3343     SET_PROPERTY(i, EP_CAN_SMASH, (CAN_SMASH_PLAYER(i) ||
3344                                    CAN_SMASH_ENEMIES(i) ||
3345                                    CAN_SMASH_EVERYTHING(i)));
3346
3347     /* ---------- CAN_EXPLODE ---------------------------------------------- */
3348     SET_PROPERTY(i, EP_CAN_EXPLODE, (CAN_EXPLODE_BY_FIRE(i) ||
3349                                      CAN_EXPLODE_SMASHED(i) ||
3350                                      CAN_EXPLODE_IMPACT(i)));
3351
3352     /* ---------- CAN_EXPLODE_3X3 ------------------------------------------ */
3353     SET_PROPERTY(i, EP_CAN_EXPLODE_3X3, (CAN_EXPLODE(i) &&
3354                                          !CAN_EXPLODE_1X1(i) &&
3355                                          !CAN_EXPLODE_CROSS(i)));
3356
3357     /* ---------- CAN_EXPLODE_BY_DRAGONFIRE -------------------------------- */
3358     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_DRAGONFIRE, CAN_EXPLODE_BY_FIRE(i));
3359
3360     /* ---------- CAN_EXPLODE_BY_EXPLOSION --------------------------------- */
3361     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_EXPLOSION, (CAN_EXPLODE_BY_FIRE(i) ||
3362                                                   i == EL_BLACK_ORB));
3363
3364     /* ---------- COULD_MOVE_INTO_ACID ------------------------------------- */
3365     SET_PROPERTY(i, EP_COULD_MOVE_INTO_ACID, (ELEM_IS_PLAYER(i) ||
3366                                               CAN_MOVE(i) ||
3367                                               IS_CUSTOM_ELEMENT(i)));
3368
3369     /* ---------- MAYBE_DONT_COLLIDE_WITH ---------------------------------- */
3370     SET_PROPERTY(i, EP_MAYBE_DONT_COLLIDE_WITH, (i == EL_SP_SNIKSNAK ||
3371                                                  i == EL_SP_ELECTRON));
3372
3373     /* ---------- CAN_MOVE_INTO_ACID --------------------------------------- */
3374     if (COULD_MOVE_INTO_ACID(i) && !IS_CUSTOM_ELEMENT(i))
3375       SET_PROPERTY(i, EP_CAN_MOVE_INTO_ACID,
3376                    getMoveIntoAcidProperty(&level, i));
3377
3378     /* ---------- DONT_COLLIDE_WITH ---------------------------------------- */
3379     if (MAYBE_DONT_COLLIDE_WITH(i))
3380       SET_PROPERTY(i, EP_DONT_COLLIDE_WITH,
3381                    getDontCollideWithProperty(&level, i));
3382
3383     /* ---------- SP_PORT -------------------------------------------------- */
3384     SET_PROPERTY(i, EP_SP_PORT, (IS_SP_ELEMENT(i) &&
3385                                  IS_PASSABLE_INSIDE(i)));
3386
3387 #if 0
3388     if (i == EL_CUSTOM_START + 253)
3389       printf("::: %d, %d, %d -> %d\n",
3390              CAN_EXPLODE_1X1(i),
3391              CAN_EXPLODE_3X3(i),
3392              CAN_EXPLODE_CROSS(i),
3393              CAN_EXPLODE(i));
3394 #endif
3395
3396     /* ---------- CAN_CHANGE ----------------------------------------------- */
3397     SET_PROPERTY(i, EP_CAN_CHANGE, FALSE);      /* default: cannot change */
3398     for (j = 0; j < element_info[i].num_change_pages; j++)
3399       if (element_info[i].change_page[j].can_change)
3400         SET_PROPERTY(i, EP_CAN_CHANGE, TRUE);
3401
3402     /* ---------- GFX_CRUMBLED --------------------------------------------- */
3403     SET_PROPERTY(i, EP_GFX_CRUMBLED,
3404                  element_info[i].crumbled[ACTION_DEFAULT] != IMG_EMPTY);
3405   }
3406
3407 #if 0
3408   /* determine inactive elements (used for engine main loop optimization) */
3409   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3410   {
3411     boolean active = FALSE;
3412
3413     for (j = 0; i < NUM_ELEMENT_PROPERTIES; j++)
3414     {
3415       if (HAS_PROPERTY(i, j))
3416         active = TRUE;
3417     }
3418
3419 #if 0
3420     if (!active)
3421       SET_PROPERTY(i, EP_INACTIVE, TRUE);
3422 #endif
3423   }
3424 #endif
3425
3426   /* dynamically adjust element properties according to game engine version */
3427   {
3428     static int ep_em_slippery_wall[] =
3429     {
3430       EL_STEELWALL,
3431       EL_WALL,
3432       EL_EXPANDABLE_WALL,
3433       EL_EXPANDABLE_WALL_HORIZONTAL,
3434       EL_EXPANDABLE_WALL_VERTICAL,
3435       EL_EXPANDABLE_WALL_ANY,
3436       -1
3437     };
3438
3439     /* special EM style gems behaviour */
3440     for (i = 0; ep_em_slippery_wall[i] != -1; i++)
3441       SET_PROPERTY(ep_em_slippery_wall[i], EP_EM_SLIPPERY_WALL,
3442                    level.em_slippery_gems);
3443
3444     /* "EL_EXPANDABLE_WALL_GROWING" wasn't slippery for EM gems in 2.0.1 */
3445     SET_PROPERTY(EL_EXPANDABLE_WALL_GROWING, EP_EM_SLIPPERY_WALL,
3446                  (level.em_slippery_gems &&
3447                   engine_version > VERSION_IDENT(2,0,1,0)));
3448   }
3449
3450 #if 1
3451   /* set default push delay values (corrected since version 3.0.7-1) */
3452   if (engine_version < VERSION_IDENT(3,0,7,1))
3453   {
3454     game.default_push_delay_fixed = 2;
3455     game.default_push_delay_random = 8;
3456   }
3457   else
3458   {
3459     game.default_push_delay_fixed = 8;
3460     game.default_push_delay_random = 8;
3461   }
3462
3463   /* set uninitialized push delay values of custom elements in older levels */
3464   for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
3465   {
3466     int element = EL_CUSTOM_START + i;
3467
3468     if (element_info[element].push_delay_fixed == -1)
3469       element_info[element].push_delay_fixed = game.default_push_delay_fixed;
3470     if (element_info[element].push_delay_random == -1)
3471       element_info[element].push_delay_random = game.default_push_delay_random;
3472   }
3473
3474   /* set some other uninitialized values of custom elements in older levels */
3475   if (engine_version < VERSION_IDENT(3,1,0,0))
3476   {
3477     for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
3478     {
3479       int element = EL_CUSTOM_START + i;
3480
3481       element_info[element].access_direction = MV_ALL_DIRECTIONS;
3482
3483       element_info[element].explosion_delay = 17;
3484       element_info[element].ignition_delay = 8;
3485     }
3486   }
3487
3488 #if 0
3489   /* set element properties that were handled incorrectly in older levels */
3490   if (engine_version < VERSION_IDENT(3,1,0,0))
3491   {
3492     SET_PROPERTY(EL_SP_SNIKSNAK, EP_DONT_COLLIDE_WITH, FALSE);
3493     SET_PROPERTY(EL_SP_ELECTRON, EP_DONT_COLLIDE_WITH, FALSE);
3494   }
3495 #endif
3496
3497 #endif
3498
3499   /* this is needed because some graphics depend on element properties */
3500   if (game_status == GAME_MODE_PLAYING)
3501     InitElementGraphicInfo();
3502 }
3503
3504 static void InitGlobal()
3505 {
3506   global.autoplay_leveldir = NULL;
3507
3508   global.frames_per_second = 0;
3509   global.fps_slowdown = FALSE;
3510   global.fps_slowdown_factor = 1;
3511 }
3512
3513 void Execute_Command(char *command)
3514 {
3515   int i;
3516
3517   if (strcmp(command, "print graphicsinfo.conf") == 0)
3518   {
3519     printf("# You can configure additional/alternative image files here.\n");
3520     printf("# (The entries below are default and therefore commented out.)\n");
3521     printf("\n");
3522     printf("%s\n", getFormattedSetupEntry("name", "Classic Graphics"));
3523     printf("\n");
3524     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3525     printf("\n");
3526
3527     for (i = 0; image_config[i].token != NULL; i++)
3528       printf("# %s\n", getFormattedSetupEntry(image_config[i].token,
3529                                               image_config[i].value));
3530
3531     exit(0);
3532   }
3533   else if (strcmp(command, "print soundsinfo.conf") == 0)
3534   {
3535     printf("# You can configure additional/alternative sound files here.\n");
3536     printf("# (The entries below are default and therefore commented out.)\n");
3537     printf("\n");
3538     printf("%s\n", getFormattedSetupEntry("name", "Classic Sounds"));
3539     printf("\n");
3540     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3541     printf("\n");
3542
3543     for (i = 0; sound_config[i].token != NULL; i++)
3544       printf("# %s\n", getFormattedSetupEntry(sound_config[i].token,
3545                                               sound_config[i].value));
3546
3547     exit(0);
3548   }
3549   else if (strcmp(command, "print musicinfo.conf") == 0)
3550   {
3551     printf("# You can configure additional/alternative music files here.\n");
3552     printf("# (The entries below are default and therefore commented out.)\n");
3553     printf("\n");
3554     printf("%s\n", getFormattedSetupEntry("name", "Classic Music"));
3555     printf("\n");
3556     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3557     printf("\n");
3558
3559     for (i = 0; music_config[i].token != NULL; i++)
3560       printf("# %s\n", getFormattedSetupEntry(music_config[i].token,
3561                                               music_config[i].value));
3562
3563     exit(0);
3564   }
3565   else if (strcmp(command, "print editorsetup.conf") == 0)
3566   {
3567     printf("# You can configure your personal editor element list here.\n");
3568     printf("# (The entries below are default and therefore commented out.)\n");
3569     printf("\n");
3570
3571     PrintEditorElementList();
3572
3573     exit(0);
3574   }
3575   else if (strcmp(command, "print helpanim.conf") == 0)
3576   {
3577     printf("# You can configure different element help animations here.\n");
3578     printf("# (The entries below are default and therefore commented out.)\n");
3579     printf("\n");
3580
3581     for (i = 0; helpanim_config[i].token != NULL; i++)
3582     {
3583       printf("# %s\n", getFormattedSetupEntry(helpanim_config[i].token,
3584                                               helpanim_config[i].value));
3585
3586       if (strcmp(helpanim_config[i].token, "end") == 0)
3587         printf("#\n");
3588     }
3589
3590     exit(0);
3591   }
3592   else if (strcmp(command, "print helptext.conf") == 0)
3593   {
3594     printf("# You can configure different element help text here.\n");
3595     printf("# (The entries below are default and therefore commented out.)\n");
3596     printf("\n");
3597
3598     for (i = 0; helptext_config[i].token != NULL; i++)
3599       printf("# %s\n", getFormattedSetupEntry(helptext_config[i].token,
3600                                               helptext_config[i].value));
3601
3602     exit(0);
3603   }
3604   else if (strncmp(command, "dump level ", 11) == 0)
3605   {
3606     char *filename = &command[11];
3607
3608     if (access(filename, F_OK) != 0)
3609       Error(ERR_EXIT, "cannot open file '%s'", filename);
3610
3611     LoadLevelFromFilename(&level, filename);
3612     DumpLevel(&level);
3613
3614     exit(0);
3615   }
3616   else if (strncmp(command, "dump tape ", 10) == 0)
3617   {
3618     char *filename = &command[10];
3619
3620     if (access(filename, F_OK) != 0)
3621       Error(ERR_EXIT, "cannot open file '%s'", filename);
3622
3623     LoadTapeFromFilename(filename);
3624     DumpTape(&tape);
3625
3626     exit(0);
3627   }
3628   else if (strncmp(command, "autoplay ", 9) == 0)
3629   {
3630     char *str_copy = getStringCopy(&command[9]);
3631     char *str_ptr = strchr(str_copy, ' ');
3632
3633     global.autoplay_leveldir = str_copy;
3634     global.autoplay_level_nr = -1;
3635
3636     if (str_ptr != NULL)
3637     {
3638       *str_ptr++ = '\0';                        /* terminate leveldir string */
3639       global.autoplay_level_nr = atoi(str_ptr); /* get level_nr value */
3640     }
3641   }
3642   else
3643   {
3644     Error(ERR_EXIT_HELP, "unrecognized command '%s'", command);
3645   }
3646 }
3647
3648 static void InitSetup()
3649 {
3650   LoadSetup();                                  /* global setup info */
3651
3652   /* set some options from setup file */
3653
3654   if (setup.options.verbose)
3655     options.verbose = TRUE;
3656 }
3657
3658 static void InitPlayerInfo()
3659 {
3660   int i;
3661
3662   /* choose default local player */
3663   local_player = &stored_player[0];
3664
3665   for (i = 0; i < MAX_PLAYERS; i++)
3666     stored_player[i].connected = FALSE;
3667
3668   local_player->connected = TRUE;
3669 }
3670
3671 static void InitArtworkInfo()
3672 {
3673   LoadArtworkInfo();
3674 }
3675
3676 static char *get_string_in_brackets(char *string)
3677 {
3678   char *string_in_brackets = checked_malloc(strlen(string) + 3);
3679
3680   sprintf(string_in_brackets, "[%s]", string);
3681
3682   return string_in_brackets;
3683 }
3684
3685 static char *get_level_id_suffix(int id_nr)
3686 {
3687   char *id_suffix = checked_malloc(1 + 3 + 1);
3688
3689   if (id_nr < 0 || id_nr > 999)
3690     id_nr = 0;
3691
3692   sprintf(id_suffix, ".%03d", id_nr);
3693
3694   return id_suffix;
3695 }
3696
3697 #if 0
3698 static char *get_element_class_token(int element)
3699 {
3700   char *element_class_name = element_info[element].class_name;
3701   char *element_class_token = checked_malloc(strlen(element_class_name) + 3);
3702
3703   sprintf(element_class_token, "[%s]", element_class_name);
3704
3705   return element_class_token;
3706 }
3707
3708 static char *get_action_class_token(int action)
3709 {
3710   char *action_class_name = &element_action_info[action].suffix[1];
3711   char *action_class_token = checked_malloc(strlen(action_class_name) + 3);
3712
3713   sprintf(action_class_token, "[%s]", action_class_name);
3714
3715   return action_class_token;
3716 }
3717 #endif
3718
3719 static void InitArtworkConfig()
3720 {
3721   static char *image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS + 1];
3722   static char *sound_id_prefix[2 * MAX_NUM_ELEMENTS + 1];
3723   static char *music_id_prefix[NUM_MUSIC_PREFIXES + 1];
3724   static char *action_id_suffix[NUM_ACTIONS + 1];
3725   static char *direction_id_suffix[NUM_DIRECTIONS + 1];
3726   static char *special_id_suffix[NUM_SPECIAL_GFX_ARGS + 1];
3727   static char *level_id_suffix[MAX_LEVELS + 1];
3728   static char *dummy[1] = { NULL };
3729   static char *ignore_generic_tokens[] =
3730   {
3731     "name",
3732     "sort_priority",
3733     NULL
3734   };
3735   static char **ignore_image_tokens;
3736   static char **ignore_sound_tokens;
3737   static char **ignore_music_tokens;
3738   int num_ignore_generic_tokens;
3739   int num_ignore_image_tokens;
3740   int num_ignore_sound_tokens;
3741   int num_ignore_music_tokens;
3742   int i;
3743
3744   /* dynamically determine list of generic tokens to be ignored */
3745   num_ignore_generic_tokens = 0;
3746   for (i = 0; ignore_generic_tokens[i] != NULL; i++)
3747     num_ignore_generic_tokens++;
3748
3749   /* dynamically determine list of image tokens to be ignored */
3750   num_ignore_image_tokens = num_ignore_generic_tokens;
3751   for (i = 0; image_config_vars[i].token != NULL; i++)
3752     num_ignore_image_tokens++;
3753   ignore_image_tokens =
3754     checked_malloc((num_ignore_image_tokens + 1) * sizeof(char *));
3755   for (i = 0; i < num_ignore_generic_tokens; i++)
3756     ignore_image_tokens[i] = ignore_generic_tokens[i];
3757   for (i = 0; i < num_ignore_image_tokens - num_ignore_generic_tokens; i++)
3758     ignore_image_tokens[num_ignore_generic_tokens + i] =
3759       image_config_vars[i].token;
3760   ignore_image_tokens[num_ignore_image_tokens] = NULL;
3761
3762   /* dynamically determine list of sound tokens to be ignored */
3763   num_ignore_sound_tokens = num_ignore_generic_tokens;
3764   ignore_sound_tokens =
3765     checked_malloc((num_ignore_sound_tokens + 1) * sizeof(char *));
3766   for (i = 0; i < num_ignore_generic_tokens; i++)
3767     ignore_sound_tokens[i] = ignore_generic_tokens[i];
3768   ignore_sound_tokens[num_ignore_sound_tokens] = NULL;
3769
3770   /* dynamically determine list of music tokens to be ignored */
3771   num_ignore_music_tokens = num_ignore_generic_tokens;
3772   ignore_music_tokens =
3773     checked_malloc((num_ignore_music_tokens + 1) * sizeof(char *));
3774   for (i = 0; i < num_ignore_generic_tokens; i++)
3775     ignore_music_tokens[i] = ignore_generic_tokens[i];
3776   ignore_music_tokens[num_ignore_music_tokens] = NULL;
3777
3778   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3779     image_id_prefix[i] = element_info[i].token_name;
3780   for (i = 0; i < NUM_FONTS; i++)
3781     image_id_prefix[MAX_NUM_ELEMENTS + i] = font_info[i].token_name;
3782   image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS] = NULL;
3783
3784   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3785     sound_id_prefix[i] = element_info[i].token_name;
3786   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3787     sound_id_prefix[MAX_NUM_ELEMENTS + i] =
3788       get_string_in_brackets(element_info[i].class_name);
3789   sound_id_prefix[2 * MAX_NUM_ELEMENTS] = NULL;
3790
3791   for (i = 0; i < NUM_MUSIC_PREFIXES; i++)
3792     music_id_prefix[i] = music_prefix_info[i].prefix;
3793   music_id_prefix[MAX_LEVELS] = NULL;
3794
3795   for (i = 0; i < NUM_ACTIONS; i++)
3796     action_id_suffix[i] = element_action_info[i].suffix;
3797   action_id_suffix[NUM_ACTIONS] = NULL;
3798
3799   for (i = 0; i < NUM_DIRECTIONS; i++)
3800     direction_id_suffix[i] = element_direction_info[i].suffix;
3801   direction_id_suffix[NUM_DIRECTIONS] = NULL;
3802
3803   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
3804     special_id_suffix[i] = special_suffix_info[i].suffix;
3805   special_id_suffix[NUM_SPECIAL_GFX_ARGS] = NULL;
3806
3807   for (i = 0; i < MAX_LEVELS; i++)
3808     level_id_suffix[i] = get_level_id_suffix(i);
3809   level_id_suffix[MAX_LEVELS] = NULL;
3810
3811   InitImageList(image_config, NUM_IMAGE_FILES, image_config_suffix,
3812                 image_id_prefix, action_id_suffix, direction_id_suffix,
3813                 special_id_suffix, ignore_image_tokens);
3814   InitSoundList(sound_config, NUM_SOUND_FILES, sound_config_suffix,
3815                 sound_id_prefix, action_id_suffix, dummy,
3816                 special_id_suffix, ignore_sound_tokens);
3817   InitMusicList(music_config, NUM_MUSIC_FILES, music_config_suffix,
3818                 music_id_prefix, special_id_suffix, level_id_suffix,
3819                 dummy, ignore_music_tokens);
3820 }
3821
3822 static void InitMixer()
3823 {
3824   OpenAudio();
3825   StartMixer();
3826 }
3827
3828 void InitGfx()
3829 {
3830   char *filename_font_initial = NULL;
3831   Bitmap *bitmap_font_initial = NULL;
3832   int i, j;
3833
3834   /* determine settings for initial font (for displaying startup messages) */
3835   for (i = 0; image_config[i].token != NULL; i++)
3836   {
3837     for (j = 0; j < NUM_INITIAL_FONTS; j++)
3838     {
3839       char font_token[128];
3840       int len_font_token;
3841
3842       sprintf(font_token, "%s_%d", CONFIG_TOKEN_FONT_INITIAL, j + 1);
3843       len_font_token = strlen(font_token);
3844
3845       if (strcmp(image_config[i].token, font_token) == 0)
3846         filename_font_initial = image_config[i].value;
3847       else if (strlen(image_config[i].token) > len_font_token &&
3848                strncmp(image_config[i].token, font_token, len_font_token) == 0)
3849       {
3850         if (strcmp(&image_config[i].token[len_font_token], ".x") == 0)
3851           font_initial[j].src_x = atoi(image_config[i].value);
3852         else if (strcmp(&image_config[i].token[len_font_token], ".y") == 0)
3853           font_initial[j].src_y = atoi(image_config[i].value);
3854         else if (strcmp(&image_config[i].token[len_font_token], ".width") == 0)
3855           font_initial[j].width = atoi(image_config[i].value);
3856         else if (strcmp(&image_config[i].token[len_font_token],".height") == 0)
3857           font_initial[j].height = atoi(image_config[i].value);
3858       }
3859     }
3860   }
3861
3862   for (j = 0; j < NUM_INITIAL_FONTS; j++)
3863   {
3864     font_initial[j].num_chars = DEFAULT_NUM_CHARS_PER_FONT;
3865     font_initial[j].num_chars_per_line = DEFAULT_NUM_CHARS_PER_LINE;
3866   }
3867
3868   if (filename_font_initial == NULL)    /* should not happen */
3869     Error(ERR_EXIT, "cannot get filename for '%s'", CONFIG_TOKEN_FONT_INITIAL);
3870
3871   /* create additional image buffers for double-buffering */
3872   bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
3873   bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
3874
3875   /* initialize screen properties */
3876   InitGfxFieldInfo(SX, SY, SXSIZE, SYSIZE,
3877                    REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE,
3878                    bitmap_db_field);
3879   InitGfxDoor1Info(DX, DY, DXSIZE, DYSIZE);
3880   InitGfxDoor2Info(VX, VY, VXSIZE, VYSIZE);
3881   InitGfxScrollbufferInfo(FXSIZE, FYSIZE);
3882
3883   bitmap_font_initial = LoadCustomImage(filename_font_initial);
3884
3885   for (j = 0; j < NUM_INITIAL_FONTS; j++)
3886     font_initial[j].bitmap = bitmap_font_initial;
3887
3888   InitFontGraphicInfo();
3889
3890   DrawInitText(getProgramInitString(), 20, FC_YELLOW);
3891   DrawInitText(PROGRAM_COPYRIGHT_STRING, 50, FC_RED);
3892
3893   DrawInitText("Loading graphics:", 120, FC_GREEN);
3894
3895   InitTileClipmasks();
3896 }
3897
3898 void InitGfxBackground()
3899 {
3900   int x, y;
3901
3902   drawto = backbuffer;
3903   fieldbuffer = bitmap_db_field;
3904   SetDrawtoField(DRAW_BACKBUFFER);
3905
3906   BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, backbuffer,
3907              0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
3908   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
3909   ClearRectangle(bitmap_db_door, 0, 0, 3 * DXSIZE, DYSIZE + VYSIZE);
3910
3911   for (x = 0; x < MAX_BUF_XSIZE; x++)
3912     for (y = 0; y < MAX_BUF_YSIZE; y++)
3913       redraw[x][y] = 0;
3914   redraw_tiles = 0;
3915   redraw_mask = REDRAW_ALL;
3916 }
3917
3918 static void InitLevelInfo()
3919 {
3920   LoadLevelInfo();                              /* global level info */
3921   LoadLevelSetup_LastSeries();                  /* last played series info */
3922   LoadLevelSetup_SeriesInfo();                  /* last played level info */
3923 }
3924
3925 void InitLevelArtworkInfo()
3926 {
3927   LoadLevelArtworkInfo();
3928 }
3929
3930 static void InitImages()
3931 {
3932 #if 1
3933   setLevelArtworkDir(artwork.gfx_first);
3934 #endif
3935
3936 #if 0
3937   printf("::: InitImages for '%s' ['%s', '%s'] ['%s', '%s']\n",
3938          leveldir_current->identifier,
3939          artwork.gfx_current_identifier,
3940          artwork.gfx_current->identifier,
3941          leveldir_current->graphics_set,
3942          leveldir_current->graphics_path);
3943 #endif
3944
3945   ReloadCustomImages();
3946
3947   LoadCustomElementDescriptions();
3948   LoadSpecialMenuDesignSettings();
3949
3950   ReinitializeGraphics();
3951 }
3952
3953 static void InitSound(char *identifier)
3954 {
3955   if (identifier == NULL)
3956     identifier = artwork.snd_current->identifier;
3957
3958 #if 1
3959   /* set artwork path to send it to the sound server process */
3960   setLevelArtworkDir(artwork.snd_first);
3961 #endif
3962
3963   InitReloadCustomSounds(identifier);
3964   ReinitializeSounds();
3965 }
3966
3967 static void InitMusic(char *identifier)
3968 {
3969   if (identifier == NULL)
3970     identifier = artwork.mus_current->identifier;
3971
3972 #if 1
3973   /* set artwork path to send it to the sound server process */
3974   setLevelArtworkDir(artwork.mus_first);
3975 #endif
3976
3977   InitReloadCustomMusic(identifier);
3978   ReinitializeMusic();
3979 }
3980
3981 void InitNetworkServer()
3982 {
3983 #if defined(PLATFORM_UNIX)
3984   int nr_wanted;
3985 #endif
3986
3987   if (!options.network)
3988     return;
3989
3990 #if defined(PLATFORM_UNIX)
3991   nr_wanted = Request("Choose player", REQ_PLAYER | REQ_STAY_CLOSED);
3992
3993   if (!ConnectToServer(options.server_host, options.server_port))
3994     Error(ERR_EXIT, "cannot connect to network game server");
3995
3996   SendToServer_PlayerName(setup.player_name);
3997   SendToServer_ProtocolVersion();
3998
3999   if (nr_wanted)
4000     SendToServer_NrWanted(nr_wanted);
4001 #endif
4002 }
4003
4004 static char *getNewArtworkIdentifier(int type)
4005 {
4006   static char *leveldir_current_identifier[3] = { NULL, NULL, NULL };
4007   static boolean last_override_level_artwork[3] = { FALSE, FALSE, FALSE };
4008   static boolean last_has_level_artwork_set[3] = { FALSE, FALSE, FALSE };
4009   static boolean initialized[3] = { FALSE, FALSE, FALSE };
4010   TreeInfo *artwork_first_node = ARTWORK_FIRST_NODE(artwork, type);
4011   boolean setup_override_artwork = SETUP_OVERRIDE_ARTWORK(setup, type);
4012   char *setup_artwork_set = SETUP_ARTWORK_SET(setup, type);
4013   char *leveldir_identifier = leveldir_current->identifier;
4014 #if 1
4015   /* !!! setLevelArtworkDir() should be moved to an earlier stage !!! */
4016   char *leveldir_artwork_set = setLevelArtworkDir(artwork_first_node);
4017 #else
4018   char *leveldir_artwork_set = LEVELDIR_ARTWORK_SET(leveldir_current, type);
4019 #endif
4020   boolean has_level_artwork_set = (leveldir_artwork_set != NULL);
4021   char *artwork_current_identifier;
4022   char *artwork_new_identifier = NULL;  /* default: nothing has changed */
4023
4024   /* leveldir_current may be invalid (level group, parent link) */
4025   if (!validLevelSeries(leveldir_current))
4026     return NULL;
4027
4028   /* 1st step: determine artwork set to be activated in descending order:
4029      --------------------------------------------------------------------
4030      1. setup artwork (when configured to override everything else)
4031      2. artwork set configured in "levelinfo.conf" of current level set
4032         (artwork in level directory will have priority when loading later)
4033      3. artwork in level directory (stored in artwork sub-directory)
4034      4. setup artwork (currently configured in setup menu) */
4035
4036   if (setup_override_artwork)
4037     artwork_current_identifier = setup_artwork_set;
4038   else if (leveldir_artwork_set != NULL)
4039     artwork_current_identifier = leveldir_artwork_set;
4040   else if (getTreeInfoFromIdentifier(artwork_first_node, leveldir_identifier))
4041     artwork_current_identifier = leveldir_identifier;
4042   else
4043     artwork_current_identifier = setup_artwork_set;
4044
4045
4046   /* 2nd step: check if it is really needed to reload artwork set
4047      ------------------------------------------------------------ */
4048
4049 #if 0
4050   if (type == ARTWORK_TYPE_GRAPHICS)
4051     printf("::: 0: '%s' ['%s', '%s'] ['%s' ('%s')]\n",
4052            artwork_new_identifier,
4053            ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4054            artwork_current_identifier,
4055            leveldir_current->graphics_set,
4056            leveldir_current->identifier);
4057 #endif
4058
4059   /* ---------- reload if level set and also artwork set has changed ------- */
4060   if (leveldir_current_identifier[type] != leveldir_identifier &&
4061       (last_has_level_artwork_set[type] || has_level_artwork_set))
4062     artwork_new_identifier = artwork_current_identifier;
4063
4064   leveldir_current_identifier[type] = leveldir_identifier;
4065   last_has_level_artwork_set[type] = has_level_artwork_set;
4066
4067 #if 0
4068   if (type == ARTWORK_TYPE_GRAPHICS)
4069     printf("::: 1: '%s'\n", artwork_new_identifier);
4070 #endif
4071
4072   /* ---------- reload if "override artwork" setting has changed ----------- */
4073   if (last_override_level_artwork[type] != setup_override_artwork)
4074     artwork_new_identifier = artwork_current_identifier;
4075
4076   last_override_level_artwork[type] = setup_override_artwork;
4077
4078 #if 0
4079   if (type == ARTWORK_TYPE_GRAPHICS)
4080     printf("::: 2: '%s'\n", artwork_new_identifier);
4081 #endif
4082
4083   /* ---------- reload if current artwork identifier has changed ----------- */
4084   if (strcmp(ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4085              artwork_current_identifier) != 0)
4086     artwork_new_identifier = artwork_current_identifier;
4087
4088   *(&(ARTWORK_CURRENT_IDENTIFIER(artwork, type))) = artwork_current_identifier;
4089
4090 #if 0
4091   if (type == ARTWORK_TYPE_GRAPHICS)
4092     printf("::: 3: '%s'\n", artwork_new_identifier);
4093 #endif
4094
4095   /* ---------- do not reload directly after starting ---------------------- */
4096   if (!initialized[type])
4097     artwork_new_identifier = NULL;
4098
4099   initialized[type] = TRUE;
4100
4101 #if 0
4102   if (type == ARTWORK_TYPE_GRAPHICS)
4103     printf("::: 4: '%s'\n", artwork_new_identifier);
4104 #endif
4105
4106 #if 0
4107   if (type == ARTWORK_TYPE_GRAPHICS)
4108     printf("CHECKING OLD/NEW GFX:\n- OLD: %s\n- NEW: %s ['%s', '%s'] ['%s']\n",
4109            artwork.gfx_current_identifier, artwork_current_identifier,
4110            artwork.gfx_current->identifier, leveldir_current->graphics_set,
4111            artwork_new_identifier);
4112 #endif
4113
4114   return artwork_new_identifier;
4115 }
4116
4117 void ReloadCustomArtwork(int force_reload)
4118 {
4119   char *gfx_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_GRAPHICS);
4120   char *snd_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_SOUNDS);
4121   char *mus_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_MUSIC);
4122   boolean force_reload_gfx = (force_reload & (1 << ARTWORK_TYPE_GRAPHICS));
4123   boolean force_reload_snd = (force_reload & (1 << ARTWORK_TYPE_SOUNDS));
4124   boolean force_reload_mus = (force_reload & (1 << ARTWORK_TYPE_MUSIC));
4125   boolean redraw_screen = FALSE;
4126
4127   if (gfx_new_identifier != NULL || force_reload_gfx)
4128   {
4129 #if 0
4130     printf("RELOADING GRAPHICS '%s' -> '%s' ['%s', '%s']\n",
4131            artwork.gfx_current_identifier,
4132            gfx_new_identifier,
4133            artwork.gfx_current->identifier,
4134            leveldir_current->graphics_set);
4135 #endif
4136
4137     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4138
4139     InitImages();
4140
4141 #if 0
4142     printf("... '%s'\n",
4143            leveldir_current->graphics_set);
4144 #endif
4145
4146     FreeTileClipmasks();
4147     InitTileClipmasks();
4148
4149     redraw_screen = TRUE;
4150   }
4151
4152   if (snd_new_identifier != NULL || force_reload_snd)
4153   {
4154     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4155
4156     InitSound(snd_new_identifier);
4157
4158     redraw_screen = TRUE;
4159   }
4160
4161   if (mus_new_identifier != NULL || force_reload_mus)
4162   {
4163     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4164
4165     InitMusic(mus_new_identifier);
4166
4167     redraw_screen = TRUE;
4168   }
4169
4170   if (redraw_screen)
4171   {
4172     InitGfxBackground();
4173
4174     /* force redraw of (open or closed) door graphics */
4175     SetDoorState(DOOR_OPEN_ALL);
4176     CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
4177   }
4178 }
4179
4180 void KeyboardAutoRepeatOffUnlessAutoplay()
4181 {
4182   if (global.autoplay_leveldir == NULL)
4183     KeyboardAutoRepeatOff();
4184 }
4185
4186
4187 /* ========================================================================= */
4188 /* OpenAll()                                                                 */
4189 /* ========================================================================= */
4190
4191 void OpenAll()
4192 {
4193   InitGlobal();         /* initialize some global variables */
4194
4195   if (options.execute_command)
4196     Execute_Command(options.execute_command);
4197
4198   if (options.serveronly)
4199   {
4200 #if defined(PLATFORM_UNIX)
4201     NetworkServer(options.server_port, options.serveronly);
4202 #else
4203     Error(ERR_WARN, "networking only supported in Unix version");
4204 #endif
4205     exit(0);    /* never reached */
4206   }
4207
4208   InitSetup();
4209
4210   InitPlayerInfo();
4211   InitArtworkInfo();            /* needed before loading gfx, sound & music */
4212   InitArtworkConfig();          /* needed before forking sound child process */
4213   InitMixer();
4214
4215   InitCounter();
4216
4217   InitRND(NEW_RANDOMIZE);
4218   InitSimpleRND(NEW_RANDOMIZE);
4219
4220   InitJoysticks();
4221
4222   InitVideoDisplay();
4223   InitVideoBuffer(&backbuffer, &window, WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH,
4224                   setup.fullscreen);
4225
4226   InitEventFilter(FilterMouseMotionEvents);
4227
4228   InitElementPropertiesStatic();
4229   InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
4230
4231   InitGfx();
4232
4233   InitLevelInfo();
4234   InitLevelArtworkInfo();
4235
4236   InitImages();                 /* needs to know current level directory */
4237   InitSound(NULL);              /* needs to know current level directory */
4238   InitMusic(NULL);              /* needs to know current level directory */
4239
4240   InitGfxBackground();
4241
4242   if (global.autoplay_leveldir)
4243   {
4244     AutoPlayTape();
4245     return;
4246   }
4247
4248   game_status = GAME_MODE_MAIN;
4249
4250   DrawMainMenu();
4251
4252   InitNetworkServer();
4253 }
4254
4255 void CloseAllAndExit(int exit_value)
4256 {
4257   StopSounds();
4258   FreeAllSounds();
4259   FreeAllMusic();
4260   CloseAudio();         /* called after freeing sounds (needed for SDL) */
4261
4262   FreeAllImages();
4263   FreeTileClipmasks();
4264
4265   CloseVideoDisplay();
4266   ClosePlatformDependentStuff();
4267
4268   exit(exit_value);
4269 }