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
 444     if (graphic_info[graphic].bitmap == NULL)
 445       continue;
 446
 447     if ((action > -1 || direction > -1 || crumbled == TRUE) &&
 448         el2img(element) != -1)
 449     {
 450       boolean base_redefined = getImageListEntry(el2img(element))->redefined;
 451       boolean act_dir_redefined = getImageListEntry(graphic)->redefined;
 452
 453       /* if the base graphic ("emerald", for example) has been redefined,
 454          but not the action graphic ("emerald.falling", for example), do not
 455          use an existing (in this case considered obsolete) action graphic
 456          anymore, but use the automatically determined default graphic */
 457       if (base_redefined && !act_dir_redefined)
 458         continue;
 459     }
 460
 461     if (action < 0)
 462       action = ACTION_DEFAULT;
 463
 464     if (crumbled)
 465     {
 466       if (direction > -1)
 467         element_info[element].direction_crumbled[action][direction] = graphic;
 468       else
 469         element_info[element].crumbled[action] = graphic;
 470     }
 471     else
 472     {
 473       if (direction > -1)
 474         element_info[element].direction_graphic[action][direction] = graphic;
 475       else
 476         element_info[element].graphic[action] = graphic;
 477     }
 478   }
 479
 480   /* initialize normal element/graphic mapping from dynamic configuration */
 481   for (i = 0; i < num_property_mappings; i++)
 482   {
 483     int element   = property_mapping[i].base_index;
 484     int action    = property_mapping[i].ext1_index;
 485     int direction = property_mapping[i].ext2_index;
 486     int special   = property_mapping[i].ext3_index;
 487     int graphic   = property_mapping[i].artwork_index;
 488     boolean crumbled = FALSE;
 489
 490     if (special == GFX_SPECIAL_ARG_CRUMBLED)
 491     {
 492       special = -1;
 493       crumbled = TRUE;
 494     }
 495
 496     if (graphic_info[graphic].bitmap == NULL)
 497       continue;
 498
 499     if (element >= MAX_NUM_ELEMENTS || special != -1)
 500       continue;
 501
 502     if (action < 0)
 503       action = ACTION_DEFAULT;
 504
 505     if (crumbled)
 506     {
 507       if (direction < 0)
 508         for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 509           element_info[element].direction_crumbled[action][dir] = -1;
 510
 511       if (direction > -1)
 512         element_info[element].direction_crumbled[action][direction] = graphic;
 513       else
 514         element_info[element].crumbled[action] = graphic;
 515     }
 516     else
 517     {
 518       if (direction < 0)
 519         for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 520           element_info[element].direction_graphic[action][dir] = -1;
 521
 522       if (direction > -1)
 523         element_info[element].direction_graphic[action][direction] = graphic;
 524       else
 525         element_info[element].graphic[action] = graphic;
 526     }
 527   }
 528
 529   /* now copy all graphics that are defined to be cloned from other graphics */
 530   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 531   {
 532     int graphic = element_info[i].graphic[ACTION_DEFAULT];
 533     int crumbled_like, diggable_like;
 534
 535     if (graphic == -1)
 536       continue;
 537
 538     crumbled_like = graphic_info[graphic].crumbled_like;
 539     diggable_like = graphic_info[graphic].diggable_like;
 540
 541     if (crumbled_like != -1 && element_info[i].crumbled[ACTION_DEFAULT] == -1)
 542     {
 543       for (act = 0; act < NUM_ACTIONS; act++)
 544         element_info[i].crumbled[act] =
 545           element_info[crumbled_like].crumbled[act];
 546       for (act = 0; act < NUM_ACTIONS; act++)
 547         for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 548           element_info[i].direction_crumbled[act][dir] =
 549             element_info[crumbled_like].direction_crumbled[act][dir];
 550     }
 551
 552     if (diggable_like != -1 && element_info[i].graphic[ACTION_DIGGING] == -1)
 553     {
 554       element_info[i].graphic[ACTION_DIGGING] =
 555         element_info[diggable_like].graphic[ACTION_DIGGING];
 556       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 557         element_info[i].direction_graphic[ACTION_DIGGING][dir] =
 558           element_info[diggable_like].direction_graphic[ACTION_DIGGING][dir];
 559     }
 560   }
 561
 562 #if 1
 563   /* now set all undefined/invalid graphics to -1 to set to default after it */
 564   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 565   {
 566     for (act = 0; act < NUM_ACTIONS; act++)
 567     {
 568       int graphic;
 569
 570       graphic = element_info[i].graphic[act];
 571       if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 572         element_info[i].graphic[act] = -1;
 573
 574       graphic = element_info[i].crumbled[act];
 575       if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 576         element_info[i].crumbled[act] = -1;
 577
 578       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 579       {
 580         graphic = element_info[i].direction_graphic[act][dir];
 581         if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 582           element_info[i].direction_graphic[act][dir] = -1;
 583
 584         graphic = element_info[i].direction_crumbled[act][dir];
 585         if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 586           element_info[i].direction_crumbled[act][dir] = -1;
 587       }
 588     }
 589   }
 590 #endif
 591
 592   /* now set all '-1' values to element specific default values */
 593   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 594   {
 595     int default_graphic = element_info[i].graphic[ACTION_DEFAULT];
 596     int default_crumbled = element_info[i].crumbled[ACTION_DEFAULT];
 597     int default_direction_graphic[NUM_DIRECTIONS];
 598     int default_direction_crumbled[NUM_DIRECTIONS];
 599
 600     if (default_graphic == -1)
 601       default_graphic = IMG_UNKNOWN;
 602     if (default_crumbled == -1)
 603       default_crumbled = IMG_EMPTY;
 604
 605     for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 606     {
 607       default_direction_graphic[dir] =
 608         element_info[i].direction_graphic[ACTION_DEFAULT][dir];
 609       default_direction_crumbled[dir] =
 610         element_info[i].direction_crumbled[ACTION_DEFAULT][dir];
 611
 612       if (default_direction_graphic[dir] == -1)
 613         default_direction_graphic[dir] = default_graphic;
 614       if (default_direction_crumbled[dir] == -1)
 615         default_direction_crumbled[dir] = default_crumbled;
 616     }
 617
 618     for (act = 0; act < NUM_ACTIONS; act++)
 619     {
 620       boolean act_remove = ((IS_DIGGABLE(i)    && act == ACTION_DIGGING)  ||
 621                             (IS_SNAPPABLE(i)   && act == ACTION_SNAPPING) ||
 622                             (IS_COLLECTIBLE(i) && act == ACTION_COLLECTING));
 623       boolean act_turning = (act == ACTION_TURNING_FROM_LEFT ||
 624                              act == ACTION_TURNING_FROM_RIGHT ||
 625                              act == ACTION_TURNING_FROM_UP ||
 626                              act == ACTION_TURNING_FROM_DOWN);
 627
 628       /* generic default action graphic (defined by "[default]" directive) */
 629       int default_action_graphic = element_info[EL_DEFAULT].graphic[act];
 630       int default_action_crumbled = element_info[EL_DEFAULT].crumbled[act];
 631
 632       /* look for special default action graphic (classic game specific) */
 633       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].graphic[act] != -1)
 634         default_action_graphic = element_info[EL_BD_DEFAULT].graphic[act];
 635       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].graphic[act] != -1)
 636         default_action_graphic = element_info[EL_SP_DEFAULT].graphic[act];
 637       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].graphic[act] != -1)
 638         default_action_graphic = element_info[EL_SB_DEFAULT].graphic[act];
 639
 640       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].crumbled[act] != -1)
 641         default_action_crumbled = element_info[EL_BD_DEFAULT].crumbled[act];
 642       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].crumbled[act] != -1)
 643         default_action_crumbled = element_info[EL_SP_DEFAULT].crumbled[act];
 644       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].crumbled[act] != -1)
 645         default_action_crumbled = element_info[EL_SB_DEFAULT].crumbled[act];
 646
 647 #if 1
 648       /* !!! make this better !!! */
 649       if (i == EL_EMPTY_SPACE)
 650       {
 651         default_action_graphic = element_info[EL_DEFAULT].graphic[act];
 652         default_action_crumbled = element_info[EL_DEFAULT].crumbled[act];
 653       }
 654 #endif
 655
 656       if (default_action_graphic == -1)
 657         default_action_graphic = default_graphic;
 658       if (default_action_crumbled == -1)
 659         default_action_crumbled = default_crumbled;
 660
 661       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 662       {
 663         int default_action_direction_graphic = element_info[i].graphic[act];
 664         int default_action_direction_crumbled = element_info[i].crumbled[act];
 665
 666         /* no graphic for current action -- use default direction graphic */
 667         if (default_action_direction_graphic == -1)
 668           default_action_direction_graphic =
 669             (act_remove ? IMG_EMPTY :
 670              act_turning ?
 671              element_info[i].direction_graphic[ACTION_TURNING][dir] :
 672              default_direction_graphic[dir]);
 673         if (default_action_direction_crumbled == -1)
 674           default_action_direction_crumbled =
 675             (act_remove ? IMG_EMPTY :
 676              act_turning ?
 677              element_info[i].direction_crumbled[ACTION_TURNING][dir] :
 678              default_direction_crumbled[dir]);
 679
 680         if (element_info[i].direction_graphic[act][dir] == -1)
 681           element_info[i].direction_graphic[act][dir] =
 682             default_action_direction_graphic;
 683         if (element_info[i].direction_crumbled[act][dir] == -1)
 684           element_info[i].direction_crumbled[act][dir] =
 685             default_action_direction_crumbled;
 686       }
 687
 688       /* no graphic for this specific action -- use default action graphic */
 689       if (element_info[i].graphic[act] == -1)
 690         element_info[i].graphic[act] =
 691           (act_remove ? IMG_EMPTY :
 692            act_turning ? element_info[i].graphic[ACTION_TURNING] :
 693            default_action_graphic);
 694       if (element_info[i].crumbled[act] == -1)
 695         element_info[i].crumbled[act] =
 696           (act_remove ? IMG_EMPTY :
 697            act_turning ? element_info[i].crumbled[ACTION_TURNING] :
 698            default_action_crumbled);
 699     }
 700   }
 701
 702 #if 1
 703   /* set animation mode to "none" for each graphic with only 1 frame */
 704   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 705   {
 706     for (act = 0; act < NUM_ACTIONS; act++)
 707     {
 708       int graphic = element_info[i].graphic[act];
 709       int crumbled = element_info[i].crumbled[act];
 710
 711       if (graphic_info[graphic].anim_frames == 1)
 712         graphic_info[graphic].anim_mode = ANIM_NONE;
 713       if (graphic_info[crumbled].anim_frames == 1)
 714         graphic_info[crumbled].anim_mode = ANIM_NONE;
 715
 716       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 717       {
 718         graphic = element_info[i].direction_graphic[act][dir];
 719         crumbled = element_info[i].direction_crumbled[act][dir];
 720
 721         if (graphic_info[graphic].anim_frames == 1)
 722           graphic_info[graphic].anim_mode = ANIM_NONE;
 723         if (graphic_info[crumbled].anim_frames == 1)
 724           graphic_info[crumbled].anim_mode = ANIM_NONE;
 725       }
 726     }
 727   }
 728 #endif
 729
 730 #if 0
 731 #if DEBUG
 732   if (options.verbose)
 733   {
 734     for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 735       if (element_info[i].graphic[ACTION_DEFAULT] == IMG_UNKNOWN &&
 736           i != EL_UNKNOWN)
 737         Error(ERR_RETURN, "warning: no graphic for element '%s' (%d)",
 738               element_info[i].token_name, i);
 739   }
 740 #endif
 741 #endif
 742 }
 743
 744 void InitElementSpecialGraphicInfo()
 745 {
 746   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 747   int num_property_mappings = getImageListPropertyMappingSize();
 748   int i, j;
 749
 750   /* always start with reliable default values */
 751   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 752     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 753       element_info[i].special_graphic[j] =
 754         element_info[i].graphic[ACTION_DEFAULT];
 755
 756   /* initialize special element/graphic mapping from static configuration */
 757   for (i = 0; element_to_special_graphic[i].element > -1; i++)
 758   {
 759     int element = element_to_special_graphic[i].element;
 760     int special = element_to_special_graphic[i].special;
 761     int graphic = element_to_special_graphic[i].graphic;
 762     boolean base_redefined = getImageListEntry(el2img(element))->redefined;
 763     boolean special_redefined = getImageListEntry(graphic)->redefined;
 764
 765     /* if the base graphic ("emerald", for example) has been redefined,
 766        but not the special graphic ("emerald.EDITOR", for example), do not
 767        use an existing (in this case considered obsolete) special graphic
 768        anymore, but use the automatically created (down-scaled) graphic */
 769     if (base_redefined && !special_redefined)
 770       continue;
 771
 772     element_info[element].special_graphic[special] = graphic;
 773   }
 774
 775   /* initialize special element/graphic mapping from dynamic configuration */
 776   for (i = 0; i < num_property_mappings; i++)
 777   {
 778     int element = property_mapping[i].base_index;
 779     int special = property_mapping[i].ext3_index;
 780     int graphic = property_mapping[i].artwork_index;
 781
 782     if (element >= MAX_NUM_ELEMENTS)
 783       continue;
 784
 785     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 786       element_info[element].special_graphic[special] = graphic;
 787   }
 788
 789 #if 1
 790   /* now set all undefined/invalid graphics to default */
 791   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 792     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 793       if (graphic_info[element_info[i].special_graphic[j]].bitmap == NULL)
 794         element_info[i].special_graphic[j] =
 795           element_info[i].graphic[ACTION_DEFAULT];
 796 #endif
 797 }
 798
 799 static int get_element_from_token(char *token)
 800 {
 801   int i;
 802
 803   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 804     if (strcmp(element_info[i].token_name, token) == 0)
 805       return i;
 806
 807   return -1;
 808 }
 809
 810 static void set_graphic_parameters(int graphic, char **parameter_raw)
 811 {
 812   Bitmap *src_bitmap = getBitmapFromImageID(graphic);
 813   int parameter[NUM_GFX_ARGS];
 814   int anim_frames_per_row = 1, anim_frames_per_col = 1;
 815   int anim_frames_per_line = 1;
 816   int i;
 817
 818   /* get integer values from string parameters */
 819   for (i = 0; i < NUM_GFX_ARGS; i++)
 820   {
 821     parameter[i] =
 822       get_parameter_value(image_config_suffix[i].token, parameter_raw[i],
 823                           image_config_suffix[i].type);
 824
 825     if (image_config_suffix[i].type == TYPE_TOKEN)
 826       parameter[i] = get_element_from_token(parameter_raw[i]);
 827   }
 828
 829   graphic_info[graphic].bitmap = src_bitmap;
 830
 831   /* start with reliable default values */
 832   graphic_info[graphic].src_x = 0;
 833   graphic_info[graphic].src_y = 0;
 834   graphic_info[graphic].width = TILEX;
 835   graphic_info[graphic].height = TILEY;
 836   graphic_info[graphic].offset_x = 0;   /* one or both of these values ... */
 837   graphic_info[graphic].offset_y = 0;   /* ... will be corrected later */
 838   graphic_info[graphic].crumbled_like = -1;     /* do not use clone element */
 839   graphic_info[graphic].diggable_like = -1;     /* do not use clone element */
 840   graphic_info[graphic].border_size = TILEX / 8;  /* "CRUMBLED" border size */
 841   graphic_info[graphic].anim_delay_fixed = 0;
 842   graphic_info[graphic].anim_delay_random = 0;
 843   graphic_info[graphic].post_delay_fixed = 0;
 844   graphic_info[graphic].post_delay_random = 0;
 845
 846   /* optional x and y tile position of animation frame sequence */
 847   if (parameter[GFX_ARG_XPOS] != ARG_UNDEFINED_VALUE)
 848     graphic_info[graphic].src_x = parameter[GFX_ARG_XPOS] * TILEX;
 849   if (parameter[GFX_ARG_YPOS] != ARG_UNDEFINED_VALUE)
 850     graphic_info[graphic].src_y = parameter[GFX_ARG_YPOS] * TILEY;
 851
 852   /* optional x and y pixel position of animation frame sequence */
 853   if (parameter[GFX_ARG_X] != ARG_UNDEFINED_VALUE)
 854     graphic_info[graphic].src_x = parameter[GFX_ARG_X];
 855   if (parameter[GFX_ARG_Y] != ARG_UNDEFINED_VALUE)
 856     graphic_info[graphic].src_y = parameter[GFX_ARG_Y];
 857
 858   /* optional width and height of each animation frame */
 859   if (parameter[GFX_ARG_WIDTH] != ARG_UNDEFINED_VALUE)
 860     graphic_info[graphic].width = parameter[GFX_ARG_WIDTH];
 861   if (parameter[GFX_ARG_HEIGHT] != ARG_UNDEFINED_VALUE)
 862     graphic_info[graphic].height = parameter[GFX_ARG_HEIGHT];
 863
 864   if (src_bitmap)
 865   {
 866     anim_frames_per_row = src_bitmap->width  / graphic_info[graphic].width;
 867     anim_frames_per_col = src_bitmap->height / graphic_info[graphic].height;
 868   }
 869
 870   /* correct x or y offset dependent of vertical or horizontal frame order */
 871   if (parameter[GFX_ARG_VERTICAL])      /* frames are ordered vertically */
 872   {
 873     graphic_info[graphic].offset_y =
 874       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
 875        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].height);
 876     anim_frames_per_line = anim_frames_per_col;
 877   }
 878   else                                  /* frames are ordered horizontally */
 879   {
 880     graphic_info[graphic].offset_x =
 881       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
 882        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].width);
 883     anim_frames_per_line = anim_frames_per_row;
 884   }
 885
 886   /* optionally, the x and y offset of frames can be specified directly */
 887   if (parameter[GFX_ARG_XOFFSET] != ARG_UNDEFINED_VALUE)
 888     graphic_info[graphic].offset_x = parameter[GFX_ARG_XOFFSET];
 889   if (parameter[GFX_ARG_YOFFSET] != ARG_UNDEFINED_VALUE)
 890     graphic_info[graphic].offset_y = parameter[GFX_ARG_YOFFSET];
 891
 892   /* automatically determine correct number of frames, if not defined */
 893   if (parameter[GFX_ARG_FRAMES] != ARG_UNDEFINED_VALUE)
 894     graphic_info[graphic].anim_frames = parameter[GFX_ARG_FRAMES];
 895   else if (parameter[GFX_ARG_XPOS] == 0 && !parameter[GFX_ARG_VERTICAL])
 896     graphic_info[graphic].anim_frames = anim_frames_per_row;
 897   else if (parameter[GFX_ARG_YPOS] == 0 && parameter[GFX_ARG_VERTICAL])
 898     graphic_info[graphic].anim_frames = anim_frames_per_col;
 899   else
 900     graphic_info[graphic].anim_frames = 1;
 901
 902   graphic_info[graphic].anim_frames_per_line =
 903     (parameter[GFX_ARG_FRAMES_PER_LINE] != ARG_UNDEFINED_VALUE ?
 904      parameter[GFX_ARG_FRAMES_PER_LINE] : anim_frames_per_line);
 905
 906   graphic_info[graphic].anim_delay = parameter[GFX_ARG_DELAY];
 907   if (graphic_info[graphic].anim_delay == 0)    /* delay must be at least 1 */
 908     graphic_info[graphic].anim_delay = 1;
 909
 910   graphic_info[graphic].anim_mode = parameter[GFX_ARG_ANIM_MODE];
 911 #if 0
 912   if (graphic_info[graphic].anim_frames == 1)
 913     graphic_info[graphic].anim_mode = ANIM_NONE;
 914 #endif
 915
 916   /* automatically determine correct start frame, if not defined */
 917   if (parameter[GFX_ARG_START_FRAME] == ARG_UNDEFINED_VALUE)
 918     graphic_info[graphic].anim_start_frame = 0;
 919   else if (graphic_info[graphic].anim_mode & ANIM_REVERSE)
 920     graphic_info[graphic].anim_start_frame =
 921       graphic_info[graphic].anim_frames - parameter[GFX_ARG_START_FRAME] - 1;
 922   else
 923     graphic_info[graphic].anim_start_frame = parameter[GFX_ARG_START_FRAME];
 924
 925   /* animation synchronized with global frame counter, not move position */
 926   graphic_info[graphic].anim_global_sync = parameter[GFX_ARG_GLOBAL_SYNC];
 927
 928   /* optional element for cloning crumble graphics */
 929   if (parameter[GFX_ARG_CRUMBLED_LIKE] != ARG_UNDEFINED_VALUE)
 930     graphic_info[graphic].crumbled_like = parameter[GFX_ARG_CRUMBLED_LIKE];
 931
 932   /* optional element for cloning digging graphics */
 933   if (parameter[GFX_ARG_DIGGABLE_LIKE] != ARG_UNDEFINED_VALUE)
 934     graphic_info[graphic].diggable_like = parameter[GFX_ARG_DIGGABLE_LIKE];
 935
 936   /* optional border size for "crumbling" diggable graphics */
 937   if (parameter[GFX_ARG_BORDER_SIZE] != ARG_UNDEFINED_VALUE)
 938     graphic_info[graphic].border_size = parameter[GFX_ARG_BORDER_SIZE];
 939
 940   /* this is only used for player "boring" and "sleeping" actions */
 941   if (parameter[GFX_ARG_ANIM_DELAY_FIXED] != ARG_UNDEFINED_VALUE)
 942     graphic_info[graphic].anim_delay_fixed =
 943       parameter[GFX_ARG_ANIM_DELAY_FIXED];
 944   if (parameter[GFX_ARG_ANIM_DELAY_RANDOM] != ARG_UNDEFINED_VALUE)
 945     graphic_info[graphic].anim_delay_random =
 946       parameter[GFX_ARG_ANIM_DELAY_RANDOM];
 947   if (parameter[GFX_ARG_POST_DELAY_FIXED] != ARG_UNDEFINED_VALUE)
 948     graphic_info[graphic].post_delay_fixed =
 949       parameter[GFX_ARG_POST_DELAY_FIXED];
 950   if (parameter[GFX_ARG_POST_DELAY_RANDOM] != ARG_UNDEFINED_VALUE)
 951     graphic_info[graphic].post_delay_random =
 952       parameter[GFX_ARG_POST_DELAY_RANDOM];
 953
 954   /* this is only used for toon animations */
 955   graphic_info[graphic].step_offset = parameter[GFX_ARG_STEP_OFFSET];
 956   graphic_info[graphic].step_delay  = parameter[GFX_ARG_STEP_DELAY];
 957
 958   /* this is only used for drawing font characters */
 959   graphic_info[graphic].draw_x = parameter[GFX_ARG_DRAW_XOFFSET];
 960   graphic_info[graphic].draw_y = parameter[GFX_ARG_DRAW_YOFFSET];
 961
 962   /* this is only used for drawing envelope graphics */
 963   graphic_info[graphic].draw_masked = parameter[GFX_ARG_DRAW_MASKED];
 964 }
 965
 966 static void InitGraphicInfo()
 967 {
 968   int fallback_graphic = IMG_CHAR_EXCLAM;
 969   struct FileInfo *fallback_image = getImageListEntry(fallback_graphic);
 970   Bitmap *fallback_bitmap = getBitmapFromImageID(fallback_graphic);
 971   int num_images = getImageListSize();
 972   int i;
 973
 974 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
 975   static boolean clipmasks_initialized = FALSE;
 976   Pixmap src_pixmap;
 977   XGCValues clip_gc_values;
 978   unsigned long clip_gc_valuemask;
 979   GC copy_clipmask_gc = None;
 980 #endif
 981
 982   checked_free(graphic_info);
 983
 984   graphic_info = checked_calloc(num_images * sizeof(struct GraphicInfo));
 985
 986 #if 0
 987   printf("::: graphic_info: %d entries\n", num_images);
 988 #endif
 989
 990 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
 991   if (clipmasks_initialized)
 992   {
 993     for (i = 0; i < num_images; i++)
 994     {
 995       if (graphic_info[i].clip_mask)
 996         XFreePixmap(display, graphic_info[i].clip_mask);
 997       if (graphic_info[i].clip_gc)
 998         XFreeGC(display, graphic_info[i].clip_gc);
 999
1000       graphic_info[i].clip_mask = None;
1001       graphic_info[i].clip_gc = None;
1002     }
1003   }
1004 #endif
1005
1006   for (i = 0; i < num_images; i++)
1007   {
1008     struct FileInfo *image = getImageListEntry(i);
1009     Bitmap *src_bitmap;
1010     int src_x, src_y;
1011     int first_frame, last_frame;
1012
1013 #if 0
1014     printf("::: image: '%s' [%d]\n", image->token, i);
1015 #endif
1016
1017 #if 0
1018     printf("::: image # %d: '%s' ['%s']\n",
1019            i, image->token,
1020            getTokenFromImageID(i));
1021 #endif
1022
1023     set_graphic_parameters(i, image->parameter);
1024
1025     /* now check if no animation frames are outside of the loaded image */
1026
1027     if (graphic_info[i].bitmap == NULL)
1028       continue;         /* skip check for optional images that are undefined */
1029
1030     first_frame = 0;
1031     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
1032     if (src_x < 0 || src_y < 0 ||
1033         src_x + TILEX > src_bitmap->width ||
1034         src_y + TILEY > src_bitmap->height)
1035     {
1036       Error(ERR_RETURN_LINE, "-");
1037       Error(ERR_RETURN, "warning: error found in config file:");
1038       Error(ERR_RETURN, "- config file: '%s'",
1039             getImageConfigFilename());
1040       Error(ERR_RETURN, "- config token: '%s'",
1041             getTokenFromImageID(i));
1042       Error(ERR_RETURN, "- image file: '%s'",
1043             src_bitmap->source_filename);
1044       Error(ERR_RETURN,
1045             "error: first animation frame out of bounds (%d, %d)",
1046             src_x, src_y);
1047       Error(ERR_RETURN, "custom graphic rejected for this element/action");
1048
1049       if (i == fallback_graphic)
1050         Error(ERR_EXIT, "fatal error: no fallback graphic available");
1051
1052       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1053       Error(ERR_RETURN_LINE, "-");
1054
1055       set_graphic_parameters(i, fallback_image->default_parameter);
1056       graphic_info[i].bitmap = fallback_bitmap;
1057     }
1058
1059     last_frame = graphic_info[i].anim_frames - 1;
1060     getGraphicSource(i, last_frame, &src_bitmap, &src_x, &src_y);
1061     if (src_x < 0 || src_y < 0 ||
1062         src_x + TILEX > src_bitmap->width ||
1063         src_y + TILEY > src_bitmap->height)
1064     {
1065       Error(ERR_RETURN_LINE, "-");
1066       Error(ERR_RETURN, "warning: error found in config file:");
1067       Error(ERR_RETURN, "- config file: '%s'",
1068             getImageConfigFilename());
1069       Error(ERR_RETURN, "- config token: '%s'",
1070             getTokenFromImageID(i));
1071       Error(ERR_RETURN, "- image file: '%s'",
1072             src_bitmap->source_filename);
1073       Error(ERR_RETURN,
1074             "error: last animation frame (%d) out of bounds (%d, %d)",
1075             last_frame, src_x, src_y);
1076       Error(ERR_RETURN, "custom graphic rejected for this element/action");
1077
1078       if (i == fallback_graphic)
1079         Error(ERR_EXIT, "fatal error: no fallback graphic available");
1080
1081       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1082       Error(ERR_RETURN_LINE, "-");
1083
1084       set_graphic_parameters(i, fallback_image->default_parameter);
1085       graphic_info[i].bitmap = fallback_bitmap;
1086     }
1087
1088 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1089     /* currently we need only a tile clip mask from the first frame */
1090     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
1091
1092     if (copy_clipmask_gc == None)
1093     {
1094       clip_gc_values.graphics_exposures = False;
1095       clip_gc_valuemask = GCGraphicsExposures;
1096       copy_clipmask_gc = XCreateGC(display, src_bitmap->clip_mask,
1097                                    clip_gc_valuemask, &clip_gc_values);
1098     }
1099
1100     graphic_info[i].clip_mask =
1101       XCreatePixmap(display, window->drawable, TILEX, TILEY, 1);
1102
1103     src_pixmap = src_bitmap->clip_mask;
1104     XCopyArea(display, src_pixmap, graphic_info[i].clip_mask,
1105               copy_clipmask_gc, src_x, src_y, TILEX, TILEY, 0, 0);
1106
1107     clip_gc_values.graphics_exposures = False;
1108     clip_gc_values.clip_mask = graphic_info[i].clip_mask;
1109     clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
1110
1111     graphic_info[i].clip_gc =
1112       XCreateGC(display, window->drawable, clip_gc_valuemask, &clip_gc_values);
1113 #endif
1114   }
1115
1116 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1117   if (copy_clipmask_gc)
1118     XFreeGC(display, copy_clipmask_gc);
1119
1120   clipmasks_initialized = TRUE;
1121 #endif
1122 }
1123
1124 static void InitElementSoundInfo()
1125 {
1126   struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
1127   int num_property_mappings = getSoundListPropertyMappingSize();
1128   int i, j, act;
1129
1130   /* set values to -1 to identify later as "uninitialized" values */
1131   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1132     for (act = 0; act < NUM_ACTIONS; act++)
1133       element_info[i].sound[act] = -1;
1134
1135   /* initialize element/sound mapping from static configuration */
1136   for (i = 0; element_to_sound[i].element > -1; i++)
1137   {
1138     int element      = element_to_sound[i].element;
1139     int action       = element_to_sound[i].action;
1140     int sound        = element_to_sound[i].sound;
1141     boolean is_class = element_to_sound[i].is_class;
1142
1143     if (action < 0)
1144       action = ACTION_DEFAULT;
1145
1146     if (!is_class)
1147       element_info[element].sound[action] = sound;
1148     else
1149       for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1150         if (strcmp(element_info[j].class_name,
1151                    element_info[element].class_name) == 0)
1152           element_info[j].sound[action] = sound;
1153   }
1154
1155   /* initialize element class/sound mapping from dynamic configuration */
1156   for (i = 0; i < num_property_mappings; i++)
1157   {
1158     int element_class = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
1159     int action        = property_mapping[i].ext1_index;
1160     int sound         = property_mapping[i].artwork_index;
1161
1162     if (element_class < 0 || element_class >= MAX_NUM_ELEMENTS)
1163       continue;
1164
1165     if (action < 0)
1166       action = ACTION_DEFAULT;
1167
1168     for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1169       if (strcmp(element_info[j].class_name,
1170                  element_info[element_class].class_name) == 0)
1171         element_info[j].sound[action] = sound;
1172   }
1173
1174   /* initialize element/sound mapping from dynamic configuration */
1175   for (i = 0; i < num_property_mappings; i++)
1176   {
1177     int element = property_mapping[i].base_index;
1178     int action  = property_mapping[i].ext1_index;
1179     int sound   = property_mapping[i].artwork_index;
1180
1181     if (element >= MAX_NUM_ELEMENTS)
1182       continue;
1183
1184     if (action < 0)
1185       action = ACTION_DEFAULT;
1186
1187     element_info[element].sound[action] = sound;
1188   }
1189
1190   /* now set all '-1' values to element specific default values */
1191   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1192   {
1193     for (act = 0; act < NUM_ACTIONS; act++)
1194     {
1195       /* generic default action sound (defined by "[default]" directive) */
1196       int default_action_sound = element_info[EL_DEFAULT].sound[act];
1197
1198       /* look for special default action sound (classic game specific) */
1199       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].sound[act] != -1)
1200         default_action_sound = element_info[EL_BD_DEFAULT].sound[act];
1201       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].sound[act] != -1)
1202         default_action_sound = element_info[EL_SP_DEFAULT].sound[act];
1203       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].sound[act] != -1)
1204         default_action_sound = element_info[EL_SB_DEFAULT].sound[act];
1205
1206       /* !!! there's no such thing as a "default action sound" !!! */
1207 #if 0
1208       /* look for element specific default sound (independent from action) */
1209       if (element_info[i].sound[ACTION_DEFAULT] != -1)
1210         default_action_sound = element_info[i].sound[ACTION_DEFAULT];
1211 #endif
1212
1213       /* no sound for this specific action -- use default action sound */
1214       if (element_info[i].sound[act] == -1)
1215         element_info[i].sound[act] = default_action_sound;
1216     }
1217   }
1218 }
1219
1220 static void InitGameModeSoundInfo()
1221 {
1222   int i;
1223
1224   /* set values to -1 to identify later as "uninitialized" values */
1225   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1226     menu.sound[i] = -1;
1227
1228   /* initialize gamemode/sound mapping from static configuration */
1229   for (i = 0; gamemode_to_sound[i].sound > -1; i++)
1230   {
1231     int gamemode = gamemode_to_sound[i].gamemode;
1232     int sound    = gamemode_to_sound[i].sound;
1233
1234     if (gamemode < 0)
1235       gamemode = GAME_MODE_DEFAULT;
1236
1237     menu.sound[gamemode] = sound;
1238   }
1239
1240   /* now set all '-1' values to levelset specific default values */
1241   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1242     if (menu.sound[i] == -1)
1243       menu.sound[i] = menu.sound[GAME_MODE_DEFAULT];
1244
1245 #if 0
1246   /* TEST ONLY */
1247   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1248     if (menu.sound[i] != -1)
1249       printf("::: menu.sound[%d] == %d\n", i, menu.sound[i]);
1250 #endif
1251 }
1252
1253 static void set_sound_parameters(int sound, char **parameter_raw)
1254 {
1255   int parameter[NUM_SND_ARGS];
1256   int i;
1257
1258   /* get integer values from string parameters */
1259   for (i = 0; i < NUM_SND_ARGS; i++)
1260     parameter[i] =
1261       get_parameter_value(sound_config_suffix[i].token, parameter_raw[i],
1262                           sound_config_suffix[i].type);
1263
1264   /* explicit loop mode setting in configuration overrides default value */
1265   if (parameter[SND_ARG_MODE_LOOP] != ARG_UNDEFINED_VALUE)
1266     sound_info[sound].loop = parameter[SND_ARG_MODE_LOOP];
1267 }
1268
1269 static void InitSoundInfo()
1270 {
1271 #if 0
1272   struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
1273   int num_property_mappings = getSoundListPropertyMappingSize();
1274 #endif
1275   int *sound_effect_properties;
1276   int num_sounds = getSoundListSize();
1277   int i, j;
1278
1279   checked_free(sound_info);
1280
1281   sound_effect_properties = checked_calloc(num_sounds * sizeof(int));
1282   sound_info = checked_calloc(num_sounds * sizeof(struct SoundInfo));
1283
1284   /* initialize sound effect for all elements to "no sound" */
1285   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1286     for (j = 0; j < NUM_ACTIONS; j++)
1287       element_info[i].sound[j] = SND_UNDEFINED;
1288
1289   for (i = 0; i < num_sounds; i++)
1290   {
1291     struct FileInfo *sound = getSoundListEntry(i);
1292     int len_effect_text = strlen(sound->token);
1293
1294     sound_effect_properties[i] = ACTION_OTHER;
1295     sound_info[i].loop = FALSE;         /* default: play sound only once */
1296
1297 #if 0
1298     printf("::: sound %d: '%s'\n", i, sound->token);
1299 #endif
1300
1301     /* determine all loop sounds and identify certain sound classes */
1302
1303     for (j = 0; element_action_info[j].suffix; j++)
1304     {
1305       int len_action_text = strlen(element_action_info[j].suffix);
1306
1307       if (len_action_text < len_effect_text &&
1308           strcmp(&sound->token[len_effect_text - len_action_text],
1309                  element_action_info[j].suffix) == 0)
1310       {
1311         sound_effect_properties[i] = element_action_info[j].value;
1312         sound_info[i].loop = element_action_info[j].is_loop_sound;
1313
1314         break;
1315       }
1316     }
1317
1318 #if 0
1319     if (strcmp(sound->token, "custom_42") == 0)
1320       printf("::: '%s' -> %d\n", sound->token, sound_info[i].loop);
1321 #endif
1322
1323     /* associate elements and some selected sound actions */
1324
1325     for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1326     {
1327       if (element_info[j].class_name)
1328       {
1329         int len_class_text = strlen(element_info[j].class_name);
1330
1331         if (len_class_text + 1 < len_effect_text &&
1332             strncmp(sound->token,
1333                     element_info[j].class_name, len_class_text) == 0 &&
1334             sound->token[len_class_text] == '.')
1335         {
1336           int sound_action_value = sound_effect_properties[i];
1337
1338           element_info[j].sound[sound_action_value] = i;
1339         }
1340       }
1341     }
1342
1343     set_sound_parameters(i, sound->parameter);
1344   }
1345
1346   free(sound_effect_properties);
1347
1348 #if 0
1349   /* !!! now handled in InitElementSoundInfo() !!! */
1350   /* initialize element/sound mapping from dynamic configuration */
1351   for (i = 0; i < num_property_mappings; i++)
1352   {
1353     int element   = property_mapping[i].base_index;
1354     int action    = property_mapping[i].ext1_index;
1355     int sound     = property_mapping[i].artwork_index;
1356
1357     if (action < 0)
1358       action = ACTION_DEFAULT;
1359
1360     printf("::: %d: %d, %d, %d ['%s']\n",
1361            i, element, action, sound, element_info[element].token_name);
1362
1363     element_info[element].sound[action] = sound;
1364   }
1365 #endif
1366
1367 #if 0
1368   /* TEST ONLY */
1369   {
1370     int element = EL_CUSTOM_11;
1371     int j = 0;
1372
1373     while (element_action_info[j].suffix)
1374     {
1375       printf("element %d, sound action '%s'  == %d\n",
1376              element, element_action_info[j].suffix,
1377              element_info[element].sound[j]);
1378       j++;
1379     }
1380   }
1381
1382   PlaySoundLevelElementAction(0,0, EL_CUSTOM_11, ACTION_PUSHING);
1383 #endif
1384
1385 #if 0
1386   /* TEST ONLY */
1387   {
1388     int element = EL_SAND;
1389     int sound_action = ACTION_DIGGING;
1390     int j = 0;
1391
1392     while (element_action_info[j].suffix)
1393     {
1394       if (element_action_info[j].value == sound_action)
1395         printf("element %d, sound action '%s'  == %d\n",
1396                element, element_action_info[j].suffix,
1397                element_info[element].sound[sound_action]);
1398       j++;
1399     }
1400   }
1401 #endif
1402 }
1403
1404 static void InitGameModeMusicInfo()
1405 {
1406   struct PropertyMapping *property_mapping = getMusicListPropertyMapping();
1407   int num_property_mappings = getMusicListPropertyMappingSize();
1408   int default_levelset_music = -1;
1409   int i;
1410
1411   /* set values to -1 to identify later as "uninitialized" values */
1412   for (i = 0; i < MAX_LEVELS; i++)
1413     levelset.music[i] = -1;
1414   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1415     menu.music[i] = -1;
1416
1417   /* initialize gamemode/music mapping from static configuration */
1418   for (i = 0; gamemode_to_music[i].music > -1; i++)
1419   {
1420     int gamemode = gamemode_to_music[i].gamemode;
1421     int music    = gamemode_to_music[i].music;
1422
1423 #if 0
1424     printf("::: gamemode == %d, music == %d\n", gamemode, music);
1425 #endif
1426
1427     if (gamemode < 0)
1428       gamemode = GAME_MODE_DEFAULT;
1429
1430     menu.music[gamemode] = music;
1431   }
1432
1433   /* initialize gamemode/music mapping from dynamic configuration */
1434   for (i = 0; i < num_property_mappings; i++)
1435   {
1436     int prefix   = property_mapping[i].base_index;
1437     int gamemode = property_mapping[i].ext1_index;
1438     int level    = property_mapping[i].ext2_index;
1439     int music    = property_mapping[i].artwork_index;
1440
1441 #if 0
1442     printf("::: prefix == %d, gamemode == %d, level == %d, music == %d\n",
1443            prefix, gamemode, level, music);
1444 #endif
1445
1446     if (prefix < 0 || prefix >= NUM_MUSIC_PREFIXES)
1447       continue;
1448
1449     if (gamemode < 0)
1450       gamemode = GAME_MODE_DEFAULT;
1451
1452     /* level specific music only allowed for in-game music */
1453     if (level != -1 && gamemode == GAME_MODE_DEFAULT)
1454       gamemode = GAME_MODE_PLAYING;
1455
1456     if (level == -1)
1457     {
1458       level = 0;
1459       default_levelset_music = music;
1460     }
1461
1462     if (gamemode == GAME_MODE_PLAYING || gamemode == GAME_MODE_DEFAULT)
1463       levelset.music[level] = music;
1464     if (gamemode != GAME_MODE_PLAYING)
1465       menu.music[gamemode] = music;
1466   }
1467
1468   /* now set all '-1' values to menu specific default values */
1469   /* (undefined values of "levelset.music[]" might stay at "-1" to
1470      allow dynamic selection of music files from music directory!) */
1471   for (i = 0; i < MAX_LEVELS; i++)
1472     if (levelset.music[i] == -1)
1473       levelset.music[i] = default_levelset_music;
1474   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1475     if (menu.music[i] == -1)
1476       menu.music[i] = menu.music[GAME_MODE_DEFAULT];
1477
1478 #if 0
1479   /* TEST ONLY */
1480   for (i = 0; i < MAX_LEVELS; i++)
1481     if (levelset.music[i] != -1)
1482       printf("::: levelset.music[%d] == %d\n", i, levelset.music[i]);
1483   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1484     if (menu.music[i] != -1)
1485       printf("::: menu.music[%d] == %d\n", i, menu.music[i]);
1486 #endif
1487 }
1488
1489 static void set_music_parameters(int music, char **parameter_raw)
1490 {
1491   int parameter[NUM_MUS_ARGS];
1492   int i;
1493
1494   /* get integer values from string parameters */
1495   for (i = 0; i < NUM_MUS_ARGS; i++)
1496     parameter[i] =
1497       get_parameter_value(music_config_suffix[i].token, parameter_raw[i],
1498                           music_config_suffix[i].type);
1499
1500   /* explicit loop mode setting in configuration overrides default value */
1501   if (parameter[MUS_ARG_MODE_LOOP] != ARG_UNDEFINED_VALUE)
1502     music_info[music].loop = parameter[MUS_ARG_MODE_LOOP];
1503 }
1504
1505 static void InitMusicInfo()
1506 {
1507   int num_music = getMusicListSize();
1508   int i, j;
1509
1510   checked_free(music_info);
1511
1512   music_info = checked_calloc(num_music * sizeof(struct MusicInfo));
1513
1514   for (i = 0; i < num_music; i++)
1515   {
1516     struct FileInfo *music = getMusicListEntry(i);
1517     int len_music_text = strlen(music->token);
1518
1519     music_info[i].loop = TRUE;          /* default: play music in loop mode */
1520
1521     /* determine all loop music */
1522
1523     for (j = 0; music_prefix_info[j].prefix; j++)
1524     {
1525       int len_prefix_text = strlen(music_prefix_info[j].prefix);
1526
1527       if (len_prefix_text < len_music_text &&
1528           strncmp(music->token,
1529                   music_prefix_info[j].prefix, len_prefix_text) == 0)
1530       {
1531         music_info[i].loop = music_prefix_info[j].is_loop_music;
1532
1533         break;
1534       }
1535     }
1536
1537     set_music_parameters(i, music->parameter);
1538   }
1539 }
1540
1541 static void ReinitializeGraphics()
1542 {
1543   InitGraphicInfo();                    /* graphic properties mapping */
1544   InitElementGraphicInfo();             /* element game graphic mapping */
1545   InitElementSpecialGraphicInfo();      /* element special graphic mapping */
1546
1547   InitElementSmallImages();             /* create editor and preview images */
1548   InitFontGraphicInfo();                /* initialize text drawing functions */
1549
1550   SetMainBackgroundImage(IMG_BACKGROUND);
1551   SetDoorBackgroundImage(IMG_BACKGROUND_DOOR);
1552
1553   InitGadgets();
1554   InitToons();
1555 }
1556
1557 static void ReinitializeSounds()
1558 {
1559   InitSoundInfo();              /* sound properties mapping */
1560   InitElementSoundInfo();       /* element game sound mapping */
1561   InitGameModeSoundInfo();      /* game mode sound mapping */
1562
1563   InitPlayLevelSound();         /* internal game sound settings */
1564 }
1565
1566 static void ReinitializeMusic()
1567 {
1568   InitMusicInfo();              /* music properties mapping */
1569   InitGameModeMusicInfo();      /* game mode music mapping */
1570 }
1571
1572 static int get_special_property_bit(int element, int property_bit_nr)
1573 {
1574   struct PropertyBitInfo
1575   {
1576     int element;
1577     int bit_nr;
1578   };
1579
1580   static struct PropertyBitInfo pb_can_move_into_acid[] =
1581   {
1582     /* the player may be able fall into acid when gravity is activated */
1583     { EL_PLAYER_1,              0       },
1584     { EL_PLAYER_2,              0       },
1585     { EL_PLAYER_3,              0       },
1586     { EL_PLAYER_4,              0       },
1587     { EL_SP_MURPHY,             0       },
1588
1589     /* all element that can move may be able to also move into acid */
1590     { EL_BUG,                   1       },
1591     { EL_BUG_LEFT,              1       },
1592     { EL_BUG_RIGHT,             1       },
1593     { EL_BUG_UP,                1       },
1594     { EL_BUG_DOWN,              1       },
1595     { EL_SPACESHIP,             2       },
1596     { EL_SPACESHIP_LEFT,        2       },
1597     { EL_SPACESHIP_RIGHT,       2       },
1598     { EL_SPACESHIP_UP,          2       },
1599     { EL_SPACESHIP_DOWN,        2       },
1600     { EL_BD_BUTTERFLY,          3       },
1601     { EL_BD_BUTTERFLY_LEFT,     3       },
1602     { EL_BD_BUTTERFLY_RIGHT,    3       },
1603     { EL_BD_BUTTERFLY_UP,       3       },
1604     { EL_BD_BUTTERFLY_DOWN,     3       },
1605     { EL_BD_FIREFLY,            4       },
1606     { EL_BD_FIREFLY_LEFT,       4       },
1607     { EL_BD_FIREFLY_RIGHT,      4       },
1608     { EL_BD_FIREFLY_UP,         4       },
1609     { EL_BD_FIREFLY_DOWN,       4       },
1610     { EL_YAMYAM,                5       },
1611     { EL_DARK_YAMYAM,           6       },
1612     { EL_ROBOT,                 7       },
1613     { EL_PACMAN,                8       },
1614     { EL_PACMAN_LEFT,           8       },
1615     { EL_PACMAN_RIGHT,          8       },
1616     { EL_PACMAN_UP,             8       },
1617     { EL_PACMAN_DOWN,           8       },
1618     { EL_MOLE,                  9       },
1619     { EL_MOLE_LEFT,             9       },
1620     { EL_MOLE_RIGHT,            9       },
1621     { EL_MOLE_UP,               9       },
1622     { EL_MOLE_DOWN,             9       },
1623     { EL_PENGUIN,               10      },
1624     { EL_PIG,                   11      },
1625     { EL_DRAGON,                12      },
1626     { EL_SATELLITE,             13      },
1627     { EL_SP_SNIKSNAK,           14      },
1628     { EL_SP_ELECTRON,           15      },
1629     { EL_BALLOON,               16      },
1630     { EL_SPRING,                17      },
1631
1632     { -1,                       -1      },
1633   };
1634
1635   static struct PropertyBitInfo pb_dont_collide_with[] =
1636   {
1637     { EL_SP_SNIKSNAK,           0       },
1638     { EL_SP_ELECTRON,           1       },
1639
1640     { -1,                       -1      },
1641   };
1642
1643   static struct
1644   {
1645     int bit_nr;
1646     struct PropertyBitInfo *pb_info;
1647   } pb_definition[] =
1648   {
1649     { EP_CAN_MOVE_INTO_ACID,    pb_can_move_into_acid   },
1650     { EP_DONT_COLLIDE_WITH,     pb_dont_collide_with    },
1651
1652     { -1,                       NULL                    },
1653   };
1654
1655   struct PropertyBitInfo *pb_info = NULL;
1656   int i;
1657
1658   for (i = 0; pb_definition[i].bit_nr != -1; i++)
1659     if (pb_definition[i].bit_nr == property_bit_nr)
1660       pb_info = pb_definition[i].pb_info;
1661
1662   if (pb_info == NULL)
1663     return -1;
1664
1665   for (i = 0; pb_info[i].element != -1; i++)
1666     if (pb_info[i].element == element)
1667       return pb_info[i].bit_nr;
1668
1669   return -1;
1670 }
1671
1672 #if 1
1673 void setBitfieldProperty(int *bitfield, int property_bit_nr, int element,
1674                          boolean property_value)
1675 {
1676   int bit_nr = get_special_property_bit(element, property_bit_nr);
1677
1678   if (bit_nr > -1)
1679   {
1680     if (property_value)
1681       *bitfield |=  (1 << bit_nr);
1682     else
1683       *bitfield &= ~(1 << bit_nr);
1684   }
1685 }
1686
1687 boolean getBitfieldProperty(int *bitfield, int property_bit_nr, int element)
1688 {
1689   int bit_nr = get_special_property_bit(element, property_bit_nr);
1690
1691   if (bit_nr > -1)
1692     return ((*bitfield & (1 << bit_nr)) != 0);
1693
1694   return FALSE;
1695 }
1696
1697 #else
1698
1699 void setMoveIntoAcidProperty(struct LevelInfo *level, int element, boolean set)
1700 {
1701   int bit_nr = get_special_property_bit(element, EP_CAN_MOVE_INTO_ACID);
1702
1703   if (bit_nr > -1)
1704   {
1705     level->can_move_into_acid_bits &= ~(1 << bit_nr);
1706
1707     if (set)
1708       level->can_move_into_acid_bits |= (1 << bit_nr);
1709   }
1710 }
1711
1712 boolean getMoveIntoAcidProperty(struct LevelInfo *level, int element)
1713 {
1714   int bit_nr = get_special_property_bit(element, EP_CAN_MOVE_INTO_ACID);
1715
1716   if (bit_nr > -1)
1717     return ((level->can_move_into_acid_bits & (1 << bit_nr)) != 0);
1718
1719   return FALSE;
1720 }
1721 #endif
1722
1723 void InitElementPropertiesStatic()
1724 {
1725   static int ep_diggable[] =
1726   {
1727     EL_SAND,
1728     EL_SP_BASE,
1729     EL_SP_BUGGY_BASE,
1730     EL_SP_BUGGY_BASE_ACTIVATING,
1731     EL_TRAP,
1732     EL_INVISIBLE_SAND,
1733     EL_INVISIBLE_SAND_ACTIVE,
1734
1735     /* !!! currently not diggable, but handled by 'ep_dont_run_into' !!! */
1736 #if 0
1737     EL_LANDMINE,
1738     EL_TRAP_ACTIVE,
1739     EL_SP_BUGGY_BASE_ACTIVE,
1740 #endif
1741     -1
1742   };
1743
1744   static int ep_collectible_only[] =
1745   {
1746     EL_BD_DIAMOND,
1747     EL_EMERALD,
1748     EL_DIAMOND,
1749     EL_EMERALD_YELLOW,
1750     EL_EMERALD_RED,
1751     EL_EMERALD_PURPLE,
1752     EL_KEY_1,
1753     EL_KEY_2,
1754     EL_KEY_3,
1755     EL_KEY_4,
1756     EL_EM_KEY_1,
1757     EL_EM_KEY_2,
1758     EL_EM_KEY_3,
1759     EL_EM_KEY_4,
1760     EL_DYNAMITE,
1761     EL_DYNABOMB_INCREASE_NUMBER,
1762     EL_DYNABOMB_INCREASE_SIZE,
1763     EL_DYNABOMB_INCREASE_POWER,
1764     EL_SP_INFOTRON,
1765     EL_SP_DISK_RED,
1766     EL_PEARL,
1767     EL_CRYSTAL,
1768     EL_KEY_WHITE,
1769     EL_SHIELD_NORMAL,
1770     EL_SHIELD_DEADLY,
1771     EL_EXTRA_TIME,
1772     EL_ENVELOPE_1,
1773     EL_ENVELOPE_2,
1774     EL_ENVELOPE_3,
1775     EL_ENVELOPE_4,
1776     EL_SPEED_PILL,
1777     -1
1778   };
1779
1780   static int ep_dont_run_into[] =
1781   {
1782     /* same elements as in 'ep_dont_touch' */
1783     EL_BUG,
1784     EL_SPACESHIP,
1785     EL_BD_BUTTERFLY,
1786     EL_BD_FIREFLY,
1787
1788     /* same elements as in 'ep_dont_collide_with' */
1789     EL_YAMYAM,
1790     EL_DARK_YAMYAM,
1791     EL_ROBOT,
1792     EL_PACMAN,
1793     EL_SP_SNIKSNAK,
1794     EL_SP_ELECTRON,
1795
1796     /* new elements */
1797     EL_AMOEBA_DROP,
1798     EL_ACID,
1799
1800     /* !!! maybe this should better be handled by 'ep_diggable' !!! */
1801 #if 1
1802     EL_LANDMINE,
1803     EL_TRAP_ACTIVE,
1804     EL_SP_BUGGY_BASE_ACTIVE,
1805 #endif
1806     -1
1807   };
1808
1809   static int ep_dont_collide_with[] =
1810   {
1811     /* same elements as in 'ep_dont_touch' */
1812     EL_BUG,
1813     EL_SPACESHIP,
1814     EL_BD_BUTTERFLY,
1815     EL_BD_FIREFLY,
1816
1817     /* new elements */
1818     EL_YAMYAM,
1819     EL_DARK_YAMYAM,
1820     EL_ROBOT,
1821     EL_PACMAN,
1822     EL_SP_SNIKSNAK,
1823     EL_SP_ELECTRON,
1824     -1
1825   };
1826
1827   static int ep_dont_touch[] =
1828   {
1829     EL_BUG,
1830     EL_SPACESHIP,
1831     EL_BD_BUTTERFLY,
1832     EL_BD_FIREFLY,
1833     -1
1834   };
1835
1836   static int ep_indestructible[] =
1837   {
1838     EL_STEELWALL,
1839     EL_ACID,
1840     EL_ACID_POOL_TOPLEFT,
1841     EL_ACID_POOL_TOPRIGHT,
1842     EL_ACID_POOL_BOTTOMLEFT,
1843     EL_ACID_POOL_BOTTOM,
1844     EL_ACID_POOL_BOTTOMRIGHT,
1845     EL_SP_HARDWARE_GRAY,
1846     EL_SP_HARDWARE_GREEN,
1847     EL_SP_HARDWARE_BLUE,
1848     EL_SP_HARDWARE_RED,
1849     EL_SP_HARDWARE_YELLOW,
1850     EL_SP_HARDWARE_BASE_1,
1851     EL_SP_HARDWARE_BASE_2,
1852     EL_SP_HARDWARE_BASE_3,
1853     EL_SP_HARDWARE_BASE_4,
1854     EL_SP_HARDWARE_BASE_5,
1855     EL_SP_HARDWARE_BASE_6,
1856     EL_INVISIBLE_STEELWALL,
1857     EL_INVISIBLE_STEELWALL_ACTIVE,
1858     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1859     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1860     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1861     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1862     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1863     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1864     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1865     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1866     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1867     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1868     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1869     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1870     EL_LIGHT_SWITCH,
1871     EL_LIGHT_SWITCH_ACTIVE,
1872     EL_SIGN_EXCLAMATION,
1873     EL_SIGN_RADIOACTIVITY,
1874     EL_SIGN_STOP,
1875     EL_SIGN_WHEELCHAIR,
1876     EL_SIGN_PARKING,
1877     EL_SIGN_ONEWAY,
1878     EL_SIGN_HEART,
1879     EL_SIGN_TRIANGLE,
1880     EL_SIGN_ROUND,
1881     EL_SIGN_EXIT,
1882     EL_SIGN_YINYANG,
1883     EL_SIGN_OTHER,
1884     EL_STEELWALL_SLIPPERY,
1885     EL_EMC_STEELWALL_1,
1886     EL_EMC_STEELWALL_2,
1887     EL_EMC_STEELWALL_3,
1888     EL_EMC_STEELWALL_4,
1889     EL_CRYSTAL,
1890     EL_GATE_1,
1891     EL_GATE_2,
1892     EL_GATE_3,
1893     EL_GATE_4,
1894     EL_GATE_1_GRAY,
1895     EL_GATE_2_GRAY,
1896     EL_GATE_3_GRAY,
1897     EL_GATE_4_GRAY,
1898     EL_EM_GATE_1,
1899     EL_EM_GATE_2,
1900     EL_EM_GATE_3,
1901     EL_EM_GATE_4,
1902     EL_EM_GATE_1_GRAY,
1903     EL_EM_GATE_2_GRAY,
1904     EL_EM_GATE_3_GRAY,
1905     EL_EM_GATE_4_GRAY,
1906     EL_SWITCHGATE_OPEN,
1907     EL_SWITCHGATE_OPENING,
1908     EL_SWITCHGATE_CLOSED,
1909     EL_SWITCHGATE_CLOSING,
1910 #if 0
1911     EL_SWITCHGATE_SWITCH_UP,
1912     EL_SWITCHGATE_SWITCH_DOWN,
1913 #endif
1914     EL_TIMEGATE_OPEN,
1915     EL_TIMEGATE_OPENING,
1916     EL_TIMEGATE_CLOSED,
1917     EL_TIMEGATE_CLOSING,
1918 #if 0
1919     EL_TIMEGATE_SWITCH,
1920     EL_TIMEGATE_SWITCH_ACTIVE,
1921 #endif
1922     EL_TUBE_ANY,
1923     EL_TUBE_VERTICAL,
1924     EL_TUBE_HORIZONTAL,
1925     EL_TUBE_VERTICAL_LEFT,
1926     EL_TUBE_VERTICAL_RIGHT,
1927     EL_TUBE_HORIZONTAL_UP,
1928     EL_TUBE_HORIZONTAL_DOWN,
1929     EL_TUBE_LEFT_UP,
1930     EL_TUBE_LEFT_DOWN,
1931     EL_TUBE_RIGHT_UP,
1932     EL_TUBE_RIGHT_DOWN,
1933     -1
1934   };
1935
1936   static int ep_slippery[] =
1937   {
1938     EL_WALL_SLIPPERY,
1939     EL_BD_WALL,
1940     EL_ROCK,
1941     EL_BD_ROCK,
1942     EL_EMERALD,
1943     EL_BD_DIAMOND,
1944     EL_EMERALD_YELLOW,
1945     EL_EMERALD_RED,
1946     EL_EMERALD_PURPLE,
1947     EL_DIAMOND,
1948     EL_BOMB,
1949     EL_NUT,
1950     EL_ROBOT_WHEEL_ACTIVE,
1951     EL_ROBOT_WHEEL,
1952     EL_TIME_ORB_FULL,
1953     EL_TIME_ORB_EMPTY,
1954     EL_LAMP_ACTIVE,
1955     EL_LAMP,
1956     EL_ACID_POOL_TOPLEFT,
1957     EL_ACID_POOL_TOPRIGHT,
1958     EL_SATELLITE,
1959     EL_SP_ZONK,
1960     EL_SP_INFOTRON,
1961     EL_SP_CHIP_SINGLE,
1962     EL_SP_CHIP_LEFT,
1963     EL_SP_CHIP_RIGHT,
1964     EL_SP_CHIP_TOP,
1965     EL_SP_CHIP_BOTTOM,
1966     EL_SPEED_PILL,
1967     EL_STEELWALL_SLIPPERY,
1968     EL_PEARL,
1969     EL_CRYSTAL,
1970     -1
1971   };
1972
1973   static int ep_can_change[] =
1974   {
1975     -1
1976   };
1977
1978   static int ep_can_move[] =
1979   {
1980     /* same elements as in 'pb_can_move_into_acid' */
1981     EL_BUG,
1982     EL_SPACESHIP,
1983     EL_BD_BUTTERFLY,
1984     EL_BD_FIREFLY,
1985     EL_YAMYAM,
1986     EL_DARK_YAMYAM,
1987     EL_ROBOT,
1988     EL_PACMAN,
1989     EL_MOLE,
1990     EL_PENGUIN,
1991     EL_PIG,
1992     EL_DRAGON,
1993     EL_SATELLITE,
1994     EL_SP_SNIKSNAK,
1995     EL_SP_ELECTRON,
1996     EL_BALLOON,
1997     EL_SPRING,
1998     -1
1999   };
2000
2001   static int ep_can_fall[] =
2002   {
2003     EL_ROCK,
2004     EL_BD_ROCK,
2005     EL_EMERALD,
2006     EL_BD_DIAMOND,
2007     EL_EMERALD_YELLOW,
2008     EL_EMERALD_RED,
2009     EL_EMERALD_PURPLE,
2010     EL_DIAMOND,
2011     EL_BOMB,
2012     EL_NUT,
2013     EL_AMOEBA_DROP,
2014     EL_QUICKSAND_FULL,
2015     EL_MAGIC_WALL_FULL,
2016     EL_BD_MAGIC_WALL_FULL,
2017     EL_TIME_ORB_FULL,
2018     EL_TIME_ORB_EMPTY,
2019     EL_SP_ZONK,
2020     EL_SP_INFOTRON,
2021     EL_SP_DISK_ORANGE,
2022     EL_PEARL,
2023     EL_CRYSTAL,
2024     EL_SPRING,
2025     EL_DX_SUPABOMB,
2026     -1
2027   };
2028
2029   static int ep_can_smash_player[] =
2030   {
2031     EL_ROCK,
2032     EL_BD_ROCK,
2033     EL_EMERALD,
2034     EL_BD_DIAMOND,
2035     EL_EMERALD_YELLOW,
2036     EL_EMERALD_RED,
2037     EL_EMERALD_PURPLE,
2038     EL_DIAMOND,
2039     EL_BOMB,
2040     EL_NUT,
2041     EL_AMOEBA_DROP,
2042     EL_TIME_ORB_FULL,
2043     EL_TIME_ORB_EMPTY,
2044     EL_SP_ZONK,
2045     EL_SP_INFOTRON,
2046     EL_SP_DISK_ORANGE,
2047     EL_PEARL,
2048     EL_CRYSTAL,
2049     EL_SPRING,
2050     EL_DX_SUPABOMB,
2051     -1
2052   };
2053
2054   static int ep_can_smash_enemies[] =
2055   {
2056     EL_ROCK,
2057     EL_BD_ROCK,
2058     EL_SP_ZONK,
2059     -1
2060   };
2061
2062   static int ep_can_smash_everything[] =
2063   {
2064     EL_ROCK,
2065     EL_BD_ROCK,
2066     EL_SP_ZONK,
2067     -1
2068   };
2069
2070   static int ep_can_explode_by_fire[] =
2071   {
2072     /* same elements as in 'ep_can_explode_impact' */
2073     EL_BOMB,
2074     EL_SP_DISK_ORANGE,
2075     EL_DX_SUPABOMB,
2076
2077     /* same elements as in 'ep_can_explode_smashed' */
2078     EL_SATELLITE,
2079     EL_PIG,
2080     EL_DRAGON,
2081     EL_MOLE,
2082
2083     /* new elements */
2084     EL_DYNAMITE_ACTIVE,
2085     EL_DYNAMITE,
2086     EL_DYNABOMB_PLAYER_1_ACTIVE,
2087     EL_DYNABOMB_PLAYER_2_ACTIVE,
2088     EL_DYNABOMB_PLAYER_3_ACTIVE,
2089     EL_DYNABOMB_PLAYER_4_ACTIVE,
2090     EL_DYNABOMB_INCREASE_NUMBER,
2091     EL_DYNABOMB_INCREASE_SIZE,
2092     EL_DYNABOMB_INCREASE_POWER,
2093     EL_SP_DISK_RED_ACTIVE,
2094     EL_BUG,
2095     EL_PENGUIN,
2096     EL_SP_DISK_RED,
2097     EL_SP_DISK_YELLOW,
2098     EL_SP_SNIKSNAK,
2099     EL_SP_ELECTRON,
2100 #if 0
2101     EL_BLACK_ORB,
2102 #endif
2103     -1
2104   };
2105
2106   static int ep_can_explode_smashed[] =
2107   {
2108     /* same elements as in 'ep_can_explode_impact' */
2109     EL_BOMB,
2110     EL_SP_DISK_ORANGE,
2111     EL_DX_SUPABOMB,
2112
2113     /* new elements */
2114     EL_SATELLITE,
2115     EL_PIG,
2116     EL_DRAGON,
2117     EL_MOLE,
2118     -1
2119   };
2120
2121   static int ep_can_explode_impact[] =
2122   {
2123     EL_BOMB,
2124     EL_SP_DISK_ORANGE,
2125     EL_DX_SUPABOMB,
2126     -1
2127   };
2128
2129   static int ep_walkable_over[] =
2130   {
2131     EL_EMPTY_SPACE,
2132     EL_SP_EMPTY_SPACE,
2133     EL_SOKOBAN_FIELD_EMPTY,
2134     EL_EXIT_OPEN,
2135     EL_SP_EXIT_OPEN,
2136     EL_SP_EXIT_OPENING,
2137     EL_GATE_1,
2138     EL_GATE_2,
2139     EL_GATE_3,
2140     EL_GATE_4,
2141     EL_GATE_1_GRAY,
2142     EL_GATE_2_GRAY,
2143     EL_GATE_3_GRAY,
2144     EL_GATE_4_GRAY,
2145     EL_PENGUIN,
2146     EL_PIG,
2147     EL_DRAGON,
2148     -1
2149   };
2150
2151   static int ep_walkable_inside[] =
2152   {
2153     EL_TUBE_ANY,
2154     EL_TUBE_VERTICAL,
2155     EL_TUBE_HORIZONTAL,
2156     EL_TUBE_VERTICAL_LEFT,
2157     EL_TUBE_VERTICAL_RIGHT,
2158     EL_TUBE_HORIZONTAL_UP,
2159     EL_TUBE_HORIZONTAL_DOWN,
2160     EL_TUBE_LEFT_UP,
2161     EL_TUBE_LEFT_DOWN,
2162     EL_TUBE_RIGHT_UP,
2163     EL_TUBE_RIGHT_DOWN,
2164     -1
2165   };
2166
2167   static int ep_walkable_under[] =
2168   {
2169     -1
2170   };
2171
2172   static int ep_passable_over[] =
2173   {
2174     EL_EM_GATE_1,
2175     EL_EM_GATE_2,
2176     EL_EM_GATE_3,
2177     EL_EM_GATE_4,
2178     EL_EM_GATE_1_GRAY,
2179     EL_EM_GATE_2_GRAY,
2180     EL_EM_GATE_3_GRAY,
2181     EL_EM_GATE_4_GRAY,
2182     EL_SWITCHGATE_OPEN,
2183     EL_TIMEGATE_OPEN,
2184     -1
2185   };
2186
2187   static int ep_passable_inside[] =
2188   {
2189     EL_SP_PORT_LEFT,
2190     EL_SP_PORT_RIGHT,
2191     EL_SP_PORT_UP,
2192     EL_SP_PORT_DOWN,
2193     EL_SP_PORT_HORIZONTAL,
2194     EL_SP_PORT_VERTICAL,
2195     EL_SP_PORT_ANY,
2196     EL_SP_GRAVITY_PORT_LEFT,
2197     EL_SP_GRAVITY_PORT_RIGHT,
2198     EL_SP_GRAVITY_PORT_UP,
2199     EL_SP_GRAVITY_PORT_DOWN,
2200     -1
2201   };
2202
2203   static int ep_passable_under[] =
2204   {
2205     -1
2206   };
2207
2208   static int ep_droppable[] =
2209   {
2210     -1
2211   };
2212
2213   static int ep_can_explode_1x1[] =
2214   {
2215     -1
2216   };
2217
2218   static int ep_pushable[] =
2219   {
2220     EL_ROCK,
2221     EL_BOMB,
2222     EL_DX_SUPABOMB,
2223     EL_NUT,
2224     EL_TIME_ORB_EMPTY,
2225     EL_SP_ZONK,
2226     EL_SP_DISK_ORANGE,
2227     EL_SPRING,
2228     EL_BD_ROCK,
2229     EL_SOKOBAN_OBJECT,
2230     EL_SOKOBAN_FIELD_FULL,
2231     EL_SATELLITE,
2232     EL_SP_DISK_YELLOW,
2233     EL_BALLOON,
2234     -1
2235   };
2236
2237   static int ep_can_explode_dyna[] =
2238   {
2239     -1
2240   };
2241
2242   static int ep_protected[] =
2243   {
2244     EL_EM_GATE_1,
2245     EL_EM_GATE_2,
2246     EL_EM_GATE_3,
2247     EL_EM_GATE_4,
2248     EL_EM_GATE_1_GRAY,
2249     EL_EM_GATE_2_GRAY,
2250     EL_EM_GATE_3_GRAY,
2251     EL_EM_GATE_4_GRAY,
2252     EL_SWITCHGATE_OPEN,
2253     EL_TIMEGATE_OPEN,
2254     -1
2255   };
2256
2257   static int ep_player[] =
2258   {
2259     EL_PLAYER_1,
2260     EL_PLAYER_2,
2261     EL_PLAYER_3,
2262     EL_PLAYER_4,
2263     EL_SP_MURPHY,
2264     -1
2265   };
2266
2267   static int ep_can_pass_magic_wall[] =
2268   {
2269     EL_ROCK,
2270     EL_BD_ROCK,
2271     EL_EMERALD,
2272     EL_BD_DIAMOND,
2273     EL_EMERALD_YELLOW,
2274     EL_EMERALD_RED,
2275     EL_EMERALD_PURPLE,
2276     EL_DIAMOND,
2277     -1
2278   };
2279
2280   static int ep_switchable[] =
2281   {
2282     EL_ROBOT_WHEEL,
2283     EL_SP_TERMINAL,
2284     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2285     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2286     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2287     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2288     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2289     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2290     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2291     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2292     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2293     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2294     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2295     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2296     EL_SWITCHGATE_SWITCH_UP,
2297     EL_SWITCHGATE_SWITCH_DOWN,
2298     EL_LIGHT_SWITCH,
2299     EL_LIGHT_SWITCH_ACTIVE,
2300     EL_TIMEGATE_SWITCH,
2301     EL_BALLOON_SWITCH_LEFT,
2302     EL_BALLOON_SWITCH_RIGHT,
2303     EL_BALLOON_SWITCH_UP,
2304     EL_BALLOON_SWITCH_DOWN,
2305     EL_BALLOON_SWITCH_ANY,
2306     EL_LAMP,
2307     EL_TIME_ORB_FULL,
2308     -1
2309   };
2310
2311   static int ep_bd_element[] =
2312   {
2313     EL_EMPTY,
2314     EL_SAND,
2315     EL_WALL_SLIPPERY,
2316     EL_BD_WALL,
2317     EL_ROCK,
2318     EL_BD_ROCK,
2319     EL_BD_DIAMOND,
2320     EL_BD_MAGIC_WALL,
2321     EL_EXIT_CLOSED,
2322     EL_EXIT_OPEN,
2323     EL_STEELWALL,
2324     EL_PLAYER_1,
2325     EL_BD_FIREFLY,
2326     EL_BD_FIREFLY_1,
2327     EL_BD_FIREFLY_2,
2328     EL_BD_FIREFLY_3,
2329     EL_BD_FIREFLY_4,
2330     EL_BD_BUTTERFLY,
2331     EL_BD_BUTTERFLY_1,
2332     EL_BD_BUTTERFLY_2,
2333     EL_BD_BUTTERFLY_3,
2334     EL_BD_BUTTERFLY_4,
2335     EL_BD_AMOEBA,
2336     EL_CHAR_QUESTION,
2337     EL_UNKNOWN,
2338     -1
2339   };
2340
2341   static int ep_sp_element[] =
2342   {
2343     /* should always be valid */
2344     EL_EMPTY,
2345
2346     EL_SP_EMPTY,
2347     EL_SP_ZONK,
2348     EL_SP_BASE,
2349     EL_SP_MURPHY,
2350     EL_SP_INFOTRON,
2351     EL_SP_CHIP_SINGLE,
2352     EL_SP_HARDWARE_GRAY,
2353     EL_SP_EXIT_CLOSED,
2354     EL_SP_EXIT_OPEN,
2355     EL_SP_DISK_ORANGE,
2356     EL_SP_PORT_RIGHT,
2357     EL_SP_PORT_DOWN,
2358     EL_SP_PORT_LEFT,
2359     EL_SP_PORT_UP,
2360     EL_SP_GRAVITY_PORT_RIGHT,
2361     EL_SP_GRAVITY_PORT_DOWN,
2362     EL_SP_GRAVITY_PORT_LEFT,
2363     EL_SP_GRAVITY_PORT_UP,
2364     EL_SP_SNIKSNAK,
2365     EL_SP_DISK_YELLOW,
2366     EL_SP_TERMINAL,
2367     EL_SP_DISK_RED,
2368     EL_SP_PORT_VERTICAL,
2369     EL_SP_PORT_HORIZONTAL,
2370     EL_SP_PORT_ANY,
2371     EL_SP_ELECTRON,
2372     EL_SP_BUGGY_BASE,
2373     EL_SP_CHIP_LEFT,
2374     EL_SP_CHIP_RIGHT,
2375     EL_SP_HARDWARE_BASE_1,
2376     EL_SP_HARDWARE_GREEN,
2377     EL_SP_HARDWARE_BLUE,
2378     EL_SP_HARDWARE_RED,
2379     EL_SP_HARDWARE_YELLOW,
2380     EL_SP_HARDWARE_BASE_2,
2381     EL_SP_HARDWARE_BASE_3,
2382     EL_SP_HARDWARE_BASE_4,
2383     EL_SP_HARDWARE_BASE_5,
2384     EL_SP_HARDWARE_BASE_6,
2385     EL_SP_CHIP_TOP,
2386     EL_SP_CHIP_BOTTOM,
2387     /* additional elements that appeared in newer Supaplex levels */
2388     EL_INVISIBLE_WALL,
2389     /* more than one murphy in a level results in an inactive clone */
2390     EL_SP_MURPHY_CLONE,
2391     /* runtime elements*/
2392     EL_SP_DISK_RED_ACTIVE,
2393     EL_SP_TERMINAL_ACTIVE,
2394     EL_SP_BUGGY_BASE_ACTIVATING,
2395     EL_SP_BUGGY_BASE_ACTIVE,
2396     EL_SP_EXIT_OPENING,
2397     EL_SP_EXIT_CLOSING,
2398     -1
2399   };
2400
2401   static int ep_sb_element[] =
2402   {
2403     EL_EMPTY,
2404     EL_STEELWALL,
2405     EL_SOKOBAN_OBJECT,
2406     EL_SOKOBAN_FIELD_EMPTY,
2407     EL_SOKOBAN_FIELD_FULL,
2408     EL_PLAYER_1,
2409     EL_INVISIBLE_STEELWALL,
2410     -1
2411   };
2412
2413   static int ep_gem[] =
2414   {
2415     EL_BD_DIAMOND,
2416     EL_EMERALD,
2417     EL_EMERALD_YELLOW,
2418     EL_EMERALD_RED,
2419     EL_EMERALD_PURPLE,
2420     EL_DIAMOND,
2421     -1
2422   };
2423
2424   static int ep_food_dark_yamyam[] =
2425   {
2426     EL_SAND,
2427     EL_BUG,
2428     EL_SPACESHIP,
2429     EL_BD_BUTTERFLY,
2430     EL_BD_FIREFLY,
2431     EL_YAMYAM,
2432     EL_ROBOT,
2433     EL_PACMAN,
2434     EL_AMOEBA_DROP,
2435     EL_AMOEBA_DEAD,
2436     EL_AMOEBA_WET,
2437     EL_AMOEBA_DRY,
2438     EL_AMOEBA_FULL,
2439     EL_BD_AMOEBA,
2440     EL_EMERALD,
2441     EL_BD_DIAMOND,
2442     EL_EMERALD_YELLOW,
2443     EL_EMERALD_RED,
2444     EL_EMERALD_PURPLE,
2445     EL_DIAMOND,
2446     EL_PEARL,
2447     EL_CRYSTAL,
2448     -1
2449   };
2450
2451   static int ep_food_penguin[] =
2452   {
2453     EL_EMERALD,
2454     EL_BD_DIAMOND,
2455     EL_EMERALD_YELLOW,
2456     EL_EMERALD_RED,
2457     EL_EMERALD_PURPLE,
2458     EL_DIAMOND,
2459     EL_PEARL,
2460     EL_CRYSTAL,
2461     -1
2462   };
2463
2464   static int ep_food_pig[] =
2465   {
2466     EL_EMERALD,
2467     EL_BD_DIAMOND,
2468     EL_EMERALD_YELLOW,
2469     EL_EMERALD_RED,
2470     EL_EMERALD_PURPLE,
2471     EL_DIAMOND,
2472     -1
2473   };
2474
2475   static int ep_historic_wall[] =
2476   {
2477     EL_STEELWALL,
2478     EL_GATE_1,
2479     EL_GATE_2,
2480     EL_GATE_3,
2481     EL_GATE_4,
2482     EL_GATE_1_GRAY,
2483     EL_GATE_2_GRAY,
2484     EL_GATE_3_GRAY,
2485     EL_GATE_4_GRAY,
2486     EL_EM_GATE_1,
2487     EL_EM_GATE_2,
2488     EL_EM_GATE_3,
2489     EL_EM_GATE_4,
2490     EL_EM_GATE_1_GRAY,
2491     EL_EM_GATE_2_GRAY,
2492     EL_EM_GATE_3_GRAY,
2493     EL_EM_GATE_4_GRAY,
2494     EL_EXIT_CLOSED,
2495     EL_EXIT_OPENING,
2496     EL_EXIT_OPEN,
2497     EL_WALL,
2498     EL_WALL_SLIPPERY,
2499     EL_EXPANDABLE_WALL,
2500     EL_EXPANDABLE_WALL_HORIZONTAL,
2501     EL_EXPANDABLE_WALL_VERTICAL,
2502     EL_EXPANDABLE_WALL_ANY,
2503     EL_EXPANDABLE_WALL_GROWING,
2504     EL_BD_WALL,
2505     EL_SP_CHIP_SINGLE,
2506     EL_SP_CHIP_LEFT,
2507     EL_SP_CHIP_RIGHT,
2508     EL_SP_CHIP_TOP,
2509     EL_SP_CHIP_BOTTOM,
2510     EL_SP_HARDWARE_GRAY,
2511     EL_SP_HARDWARE_GREEN,
2512     EL_SP_HARDWARE_BLUE,
2513     EL_SP_HARDWARE_RED,
2514     EL_SP_HARDWARE_YELLOW,
2515     EL_SP_HARDWARE_BASE_1,
2516     EL_SP_HARDWARE_BASE_2,
2517     EL_SP_HARDWARE_BASE_3,
2518     EL_SP_HARDWARE_BASE_4,
2519     EL_SP_HARDWARE_BASE_5,
2520     EL_SP_HARDWARE_BASE_6,
2521     EL_SP_TERMINAL,
2522     EL_SP_TERMINAL_ACTIVE,
2523     EL_SP_EXIT_CLOSED,
2524     EL_SP_EXIT_OPEN,
2525     EL_INVISIBLE_STEELWALL,
2526     EL_INVISIBLE_STEELWALL_ACTIVE,
2527     EL_INVISIBLE_WALL,
2528     EL_INVISIBLE_WALL_ACTIVE,
2529     EL_STEELWALL_SLIPPERY,
2530     EL_EMC_STEELWALL_1,
2531     EL_EMC_STEELWALL_2,
2532     EL_EMC_STEELWALL_3,
2533     EL_EMC_STEELWALL_4,
2534     EL_EMC_WALL_1,
2535     EL_EMC_WALL_2,
2536     EL_EMC_WALL_3,
2537     EL_EMC_WALL_4,
2538     EL_EMC_WALL_5,
2539     EL_EMC_WALL_6,
2540     EL_EMC_WALL_7,
2541     EL_EMC_WALL_8,
2542     -1
2543   };
2544
2545   static int ep_historic_solid[] =
2546   {
2547     EL_WALL,
2548     EL_EXPANDABLE_WALL,
2549     EL_EXPANDABLE_WALL_HORIZONTAL,
2550     EL_EXPANDABLE_WALL_VERTICAL,
2551     EL_EXPANDABLE_WALL_ANY,
2552     EL_BD_WALL,
2553     EL_WALL_SLIPPERY,
2554     EL_EXIT_CLOSED,
2555     EL_EXIT_OPENING,
2556     EL_EXIT_OPEN,
2557     EL_AMOEBA_DEAD,
2558     EL_AMOEBA_WET,
2559     EL_AMOEBA_DRY,
2560     EL_AMOEBA_FULL,
2561     EL_BD_AMOEBA,
2562     EL_QUICKSAND_EMPTY,
2563     EL_QUICKSAND_FULL,
2564     EL_QUICKSAND_FILLING,
2565     EL_QUICKSAND_EMPTYING,
2566     EL_MAGIC_WALL,
2567     EL_MAGIC_WALL_ACTIVE,
2568     EL_MAGIC_WALL_EMPTYING,
2569     EL_MAGIC_WALL_FILLING,
2570     EL_MAGIC_WALL_FULL,
2571     EL_MAGIC_WALL_DEAD,
2572     EL_BD_MAGIC_WALL,
2573     EL_BD_MAGIC_WALL_ACTIVE,
2574     EL_BD_MAGIC_WALL_EMPTYING,
2575     EL_BD_MAGIC_WALL_FULL,
2576     EL_BD_MAGIC_WALL_FILLING,
2577     EL_BD_MAGIC_WALL_DEAD,
2578     EL_GAME_OF_LIFE,
2579     EL_BIOMAZE,
2580     EL_SP_CHIP_SINGLE,
2581     EL_SP_CHIP_LEFT,
2582     EL_SP_CHIP_RIGHT,
2583     EL_SP_CHIP_TOP,
2584     EL_SP_CHIP_BOTTOM,
2585     EL_SP_TERMINAL,
2586     EL_SP_TERMINAL_ACTIVE,
2587     EL_SP_EXIT_CLOSED,
2588     EL_SP_EXIT_OPEN,
2589     EL_INVISIBLE_WALL,
2590     EL_INVISIBLE_WALL_ACTIVE,
2591     EL_SWITCHGATE_SWITCH_UP,
2592     EL_SWITCHGATE_SWITCH_DOWN,
2593     EL_TIMEGATE_SWITCH,
2594     EL_TIMEGATE_SWITCH_ACTIVE,
2595     EL_EMC_WALL_1,
2596     EL_EMC_WALL_2,
2597     EL_EMC_WALL_3,
2598     EL_EMC_WALL_4,
2599     EL_EMC_WALL_5,
2600     EL_EMC_WALL_6,
2601     EL_EMC_WALL_7,
2602     EL_EMC_WALL_8,
2603     EL_WALL_PEARL,
2604     EL_WALL_CRYSTAL,
2605
2606     /* the following elements are a direct copy of "indestructible" elements,
2607        except "EL_ACID", which is "indestructible", but not "solid"! */
2608 #if 0
2609     EL_ACID,
2610 #endif
2611     EL_STEELWALL,
2612     EL_ACID_POOL_TOPLEFT,
2613     EL_ACID_POOL_TOPRIGHT,
2614     EL_ACID_POOL_BOTTOMLEFT,
2615     EL_ACID_POOL_BOTTOM,
2616     EL_ACID_POOL_BOTTOMRIGHT,
2617     EL_SP_HARDWARE_GRAY,
2618     EL_SP_HARDWARE_GREEN,
2619     EL_SP_HARDWARE_BLUE,
2620     EL_SP_HARDWARE_RED,
2621     EL_SP_HARDWARE_YELLOW,
2622     EL_SP_HARDWARE_BASE_1,
2623     EL_SP_HARDWARE_BASE_2,
2624     EL_SP_HARDWARE_BASE_3,
2625     EL_SP_HARDWARE_BASE_4,
2626     EL_SP_HARDWARE_BASE_5,
2627     EL_SP_HARDWARE_BASE_6,
2628     EL_INVISIBLE_STEELWALL,
2629     EL_INVISIBLE_STEELWALL_ACTIVE,
2630     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2631     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2632     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2633     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2634     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2635     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2636     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2637     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2638     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2639     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2640     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2641     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2642     EL_LIGHT_SWITCH,
2643     EL_LIGHT_SWITCH_ACTIVE,
2644     EL_SIGN_EXCLAMATION,
2645     EL_SIGN_RADIOACTIVITY,
2646     EL_SIGN_STOP,
2647     EL_SIGN_WHEELCHAIR,
2648     EL_SIGN_PARKING,
2649     EL_SIGN_ONEWAY,
2650     EL_SIGN_HEART,
2651     EL_SIGN_TRIANGLE,
2652     EL_SIGN_ROUND,
2653     EL_SIGN_EXIT,
2654     EL_SIGN_YINYANG,
2655     EL_SIGN_OTHER,
2656     EL_STEELWALL_SLIPPERY,
2657     EL_EMC_STEELWALL_1,
2658     EL_EMC_STEELWALL_2,
2659     EL_EMC_STEELWALL_3,
2660     EL_EMC_STEELWALL_4,
2661     EL_CRYSTAL,
2662     EL_GATE_1,
2663     EL_GATE_2,
2664     EL_GATE_3,
2665     EL_GATE_4,
2666     EL_GATE_1_GRAY,
2667     EL_GATE_2_GRAY,
2668     EL_GATE_3_GRAY,
2669     EL_GATE_4_GRAY,
2670     EL_EM_GATE_1,
2671     EL_EM_GATE_2,
2672     EL_EM_GATE_3,
2673     EL_EM_GATE_4,
2674     EL_EM_GATE_1_GRAY,
2675     EL_EM_GATE_2_GRAY,
2676     EL_EM_GATE_3_GRAY,
2677     EL_EM_GATE_4_GRAY,
2678     EL_SWITCHGATE_OPEN,
2679     EL_SWITCHGATE_OPENING,
2680     EL_SWITCHGATE_CLOSED,
2681     EL_SWITCHGATE_CLOSING,
2682     EL_TIMEGATE_OPEN,
2683     EL_TIMEGATE_OPENING,
2684     EL_TIMEGATE_CLOSED,
2685     EL_TIMEGATE_CLOSING,
2686     EL_TUBE_ANY,
2687     EL_TUBE_VERTICAL,
2688     EL_TUBE_HORIZONTAL,
2689     EL_TUBE_VERTICAL_LEFT,
2690     EL_TUBE_VERTICAL_RIGHT,
2691     EL_TUBE_HORIZONTAL_UP,
2692     EL_TUBE_HORIZONTAL_DOWN,
2693     EL_TUBE_LEFT_UP,
2694     EL_TUBE_LEFT_DOWN,
2695     EL_TUBE_RIGHT_UP,
2696     EL_TUBE_RIGHT_DOWN,
2697     -1
2698   };
2699
2700   static int ep_classic_enemy[] =
2701   {
2702     EL_BUG,
2703     EL_SPACESHIP,
2704     EL_BD_BUTTERFLY,
2705     EL_BD_FIREFLY,
2706
2707     EL_YAMYAM,
2708     EL_DARK_YAMYAM,
2709     EL_ROBOT,
2710     EL_PACMAN,
2711     EL_SP_SNIKSNAK,
2712     EL_SP_ELECTRON,
2713     -1
2714   };
2715
2716   static int ep_belt[] =
2717   {
2718     EL_CONVEYOR_BELT_1_LEFT,
2719     EL_CONVEYOR_BELT_1_MIDDLE,
2720     EL_CONVEYOR_BELT_1_RIGHT,
2721     EL_CONVEYOR_BELT_2_LEFT,
2722     EL_CONVEYOR_BELT_2_MIDDLE,
2723     EL_CONVEYOR_BELT_2_RIGHT,
2724     EL_CONVEYOR_BELT_3_LEFT,
2725     EL_CONVEYOR_BELT_3_MIDDLE,
2726     EL_CONVEYOR_BELT_3_RIGHT,
2727     EL_CONVEYOR_BELT_4_LEFT,
2728     EL_CONVEYOR_BELT_4_MIDDLE,
2729     EL_CONVEYOR_BELT_4_RIGHT,
2730     -1
2731   };
2732
2733   static int ep_belt_active[] =
2734   {
2735     EL_CONVEYOR_BELT_1_LEFT_ACTIVE,
2736     EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE,
2737     EL_CONVEYOR_BELT_1_RIGHT_ACTIVE,
2738     EL_CONVEYOR_BELT_2_LEFT_ACTIVE,
2739     EL_CONVEYOR_BELT_2_MIDDLE_ACTIVE,
2740     EL_CONVEYOR_BELT_2_RIGHT_ACTIVE,
2741     EL_CONVEYOR_BELT_3_LEFT_ACTIVE,
2742     EL_CONVEYOR_BELT_3_MIDDLE_ACTIVE,
2743     EL_CONVEYOR_BELT_3_RIGHT_ACTIVE,
2744     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
2745     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
2746     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
2747     -1
2748   };
2749
2750   static int ep_belt_switch[] =
2751   {
2752     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2753     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2754     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2755     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2756     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2757     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2758     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2759     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2760     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2761     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2762     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2763     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2764     -1
2765   };
2766
2767   static int ep_tube[] =
2768   {
2769     EL_TUBE_LEFT_UP,
2770     EL_TUBE_LEFT_DOWN,
2771     EL_TUBE_RIGHT_UP,
2772     EL_TUBE_RIGHT_DOWN,
2773     EL_TUBE_HORIZONTAL,
2774     EL_TUBE_HORIZONTAL_UP,
2775     EL_TUBE_HORIZONTAL_DOWN,
2776     EL_TUBE_VERTICAL,
2777     EL_TUBE_VERTICAL_LEFT,
2778     EL_TUBE_VERTICAL_RIGHT,
2779     EL_TUBE_ANY,
2780     -1
2781   };
2782
2783   static int ep_keygate[] =
2784   {
2785     EL_GATE_1,
2786     EL_GATE_2,
2787     EL_GATE_3,
2788     EL_GATE_4,
2789     EL_GATE_1_GRAY,
2790     EL_GATE_2_GRAY,
2791     EL_GATE_3_GRAY,
2792     EL_GATE_4_GRAY,
2793     EL_EM_GATE_1,
2794     EL_EM_GATE_2,
2795     EL_EM_GATE_3,
2796     EL_EM_GATE_4,
2797     EL_EM_GATE_1_GRAY,
2798     EL_EM_GATE_2_GRAY,
2799     EL_EM_GATE_3_GRAY,
2800     EL_EM_GATE_4_GRAY,
2801     -1
2802   };
2803
2804   static int ep_amoeboid[] =
2805   {
2806     EL_AMOEBA_DEAD,
2807     EL_AMOEBA_WET,
2808     EL_AMOEBA_DRY,
2809     EL_AMOEBA_FULL,
2810     EL_BD_AMOEBA,
2811     -1
2812   };
2813
2814   static int ep_amoebalive[] =
2815   {
2816     EL_AMOEBA_WET,
2817     EL_AMOEBA_DRY,
2818     EL_AMOEBA_FULL,
2819     EL_BD_AMOEBA,
2820     -1
2821   };
2822
2823   static int ep_has_content[] =
2824   {
2825     EL_YAMYAM,
2826     EL_AMOEBA_WET,
2827     EL_AMOEBA_DRY,
2828     EL_AMOEBA_FULL,
2829     EL_BD_AMOEBA,
2830     -1
2831   };
2832
2833   static int ep_active_bomb[] =
2834   {
2835     EL_DYNAMITE_ACTIVE,
2836     EL_DYNABOMB_PLAYER_1_ACTIVE,
2837     EL_DYNABOMB_PLAYER_2_ACTIVE,
2838     EL_DYNABOMB_PLAYER_3_ACTIVE,
2839     EL_DYNABOMB_PLAYER_4_ACTIVE,
2840     EL_SP_DISK_RED_ACTIVE,
2841     -1
2842   };
2843
2844   static int ep_inactive[] =
2845   {
2846     EL_EMPTY,
2847     EL_SAND,
2848     EL_WALL,
2849     EL_BD_WALL,
2850     EL_WALL_SLIPPERY,
2851     EL_STEELWALL,
2852     EL_AMOEBA_DEAD,
2853     EL_QUICKSAND_EMPTY,
2854     EL_STONEBLOCK,
2855     EL_ROBOT_WHEEL,
2856     EL_KEY_1,
2857     EL_KEY_2,
2858     EL_KEY_3,
2859     EL_KEY_4,
2860     EL_EM_KEY_1,
2861     EL_EM_KEY_2,
2862     EL_EM_KEY_3,
2863     EL_EM_KEY_4,
2864     EL_GATE_1,
2865     EL_GATE_2,
2866     EL_GATE_3,
2867     EL_GATE_4,
2868     EL_GATE_1_GRAY,
2869     EL_GATE_2_GRAY,
2870     EL_GATE_3_GRAY,
2871     EL_GATE_4_GRAY,
2872     EL_EM_GATE_1,
2873     EL_EM_GATE_2,
2874     EL_EM_GATE_3,
2875     EL_EM_GATE_4,
2876     EL_EM_GATE_1_GRAY,
2877     EL_EM_GATE_2_GRAY,
2878     EL_EM_GATE_3_GRAY,
2879     EL_EM_GATE_4_GRAY,
2880     EL_DYNAMITE,
2881     EL_INVISIBLE_STEELWALL,
2882     EL_INVISIBLE_WALL,
2883     EL_INVISIBLE_SAND,
2884     EL_LAMP,
2885     EL_LAMP_ACTIVE,
2886     EL_WALL_EMERALD,
2887     EL_WALL_DIAMOND,
2888     EL_WALL_BD_DIAMOND,
2889     EL_WALL_EMERALD_YELLOW,
2890     EL_DYNABOMB_INCREASE_NUMBER,
2891     EL_DYNABOMB_INCREASE_SIZE,
2892     EL_DYNABOMB_INCREASE_POWER,
2893 #if 0
2894     EL_SOKOBAN_OBJECT,
2895 #endif
2896     EL_SOKOBAN_FIELD_EMPTY,
2897     EL_SOKOBAN_FIELD_FULL,
2898     EL_WALL_EMERALD_RED,
2899     EL_WALL_EMERALD_PURPLE,
2900     EL_ACID_POOL_TOPLEFT,
2901     EL_ACID_POOL_TOPRIGHT,
2902     EL_ACID_POOL_BOTTOMLEFT,
2903     EL_ACID_POOL_BOTTOM,
2904     EL_ACID_POOL_BOTTOMRIGHT,
2905     EL_MAGIC_WALL,
2906     EL_MAGIC_WALL_DEAD,
2907     EL_BD_MAGIC_WALL,
2908     EL_BD_MAGIC_WALL_DEAD,
2909     EL_AMOEBA_TO_DIAMOND,
2910     EL_BLOCKED,
2911     EL_SP_EMPTY,
2912     EL_SP_BASE,
2913     EL_SP_PORT_RIGHT,
2914     EL_SP_PORT_DOWN,
2915     EL_SP_PORT_LEFT,
2916     EL_SP_PORT_UP,
2917     EL_SP_GRAVITY_PORT_RIGHT,
2918     EL_SP_GRAVITY_PORT_DOWN,
2919     EL_SP_GRAVITY_PORT_LEFT,
2920     EL_SP_GRAVITY_PORT_UP,
2921     EL_SP_PORT_HORIZONTAL,
2922     EL_SP_PORT_VERTICAL,
2923     EL_SP_PORT_ANY,
2924     EL_SP_DISK_RED,
2925 #if 0
2926     EL_SP_DISK_YELLOW,
2927 #endif
2928     EL_SP_CHIP_SINGLE,
2929     EL_SP_CHIP_LEFT,
2930     EL_SP_CHIP_RIGHT,
2931     EL_SP_CHIP_TOP,
2932     EL_SP_CHIP_BOTTOM,
2933     EL_SP_HARDWARE_GRAY,
2934     EL_SP_HARDWARE_GREEN,
2935     EL_SP_HARDWARE_BLUE,
2936     EL_SP_HARDWARE_RED,
2937     EL_SP_HARDWARE_YELLOW,
2938     EL_SP_HARDWARE_BASE_1,
2939     EL_SP_HARDWARE_BASE_2,
2940     EL_SP_HARDWARE_BASE_3,
2941     EL_SP_HARDWARE_BASE_4,
2942     EL_SP_HARDWARE_BASE_5,
2943     EL_SP_HARDWARE_BASE_6,
2944     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2945     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2946     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2947     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2948     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2949     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2950     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2951     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2952     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2953     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2954     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2955     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2956     EL_SIGN_EXCLAMATION,
2957     EL_SIGN_RADIOACTIVITY,
2958     EL_SIGN_STOP,
2959     EL_SIGN_WHEELCHAIR,
2960     EL_SIGN_PARKING,
2961     EL_SIGN_ONEWAY,
2962     EL_SIGN_HEART,
2963     EL_SIGN_TRIANGLE,
2964     EL_SIGN_ROUND,
2965     EL_SIGN_EXIT,
2966     EL_SIGN_YINYANG,
2967     EL_SIGN_OTHER,
2968     EL_STEELWALL_SLIPPERY,
2969     EL_EMC_STEELWALL_1,
2970     EL_EMC_STEELWALL_2,
2971     EL_EMC_STEELWALL_3,
2972     EL_EMC_STEELWALL_4,
2973     EL_EMC_WALL_1,
2974     EL_EMC_WALL_2,
2975     EL_EMC_WALL_3,
2976     EL_EMC_WALL_4,
2977     EL_EMC_WALL_5,
2978     EL_EMC_WALL_6,
2979     EL_EMC_WALL_7,
2980     EL_EMC_WALL_8,
2981     -1
2982   };
2983
2984   static int ep_em_slippery_wall[] =
2985   {
2986     -1
2987   };
2988
2989   static int ep_gfx_crumbled[] =
2990   {
2991     EL_SAND,
2992     EL_LANDMINE,
2993     EL_TRAP,
2994     EL_TRAP_ACTIVE,
2995     -1
2996   };
2997
2998   static struct
2999   {
3000     int *elements;
3001     int property;
3002   } element_properties[] =
3003   {
3004     { ep_diggable,              EP_DIGGABLE             },
3005     { ep_collectible_only,      EP_COLLECTIBLE_ONLY     },
3006     { ep_dont_run_into,         EP_DONT_RUN_INTO        },
3007     { ep_dont_collide_with,     EP_DONT_COLLIDE_WITH    },
3008     { ep_dont_touch,            EP_DONT_TOUCH           },
3009     { ep_indestructible,        EP_INDESTRUCTIBLE       },
3010     { ep_slippery,              EP_SLIPPERY             },
3011     { ep_can_change,            EP_CAN_CHANGE           },
3012     { ep_can_move,              EP_CAN_MOVE             },
3013     { ep_can_fall,              EP_CAN_FALL             },
3014     { ep_can_smash_player,      EP_CAN_SMASH_PLAYER     },
3015     { ep_can_smash_enemies,     EP_CAN_SMASH_ENEMIES    },
3016     { ep_can_smash_everything,  EP_CAN_SMASH_EVERYTHING },
3017     { ep_can_explode_by_fire,   EP_CAN_EXPLODE_BY_FIRE  },
3018     { ep_can_explode_smashed,   EP_CAN_EXPLODE_SMASHED  },
3019     { ep_can_explode_impact,    EP_CAN_EXPLODE_IMPACT   },
3020     { ep_walkable_over,         EP_WALKABLE_OVER        },
3021     { ep_walkable_inside,       EP_WALKABLE_INSIDE      },
3022     { ep_walkable_under,        EP_WALKABLE_UNDER       },
3023     { ep_passable_over,         EP_PASSABLE_OVER        },
3024     { ep_passable_inside,       EP_PASSABLE_INSIDE      },
3025     { ep_passable_under,        EP_PASSABLE_UNDER       },
3026     { ep_droppable,             EP_DROPPABLE            },
3027     { ep_can_explode_1x1,       EP_CAN_EXPLODE_1X1      },
3028     { ep_pushable,              EP_PUSHABLE             },
3029     { ep_can_explode_dyna,      EP_CAN_EXPLODE_DYNA     },
3030     { ep_protected,             EP_PROTECTED            },
3031
3032     { ep_player,                EP_PLAYER               },
3033     { ep_can_pass_magic_wall,   EP_CAN_PASS_MAGIC_WALL  },
3034     { ep_switchable,            EP_SWITCHABLE           },
3035     { ep_bd_element,            EP_BD_ELEMENT           },
3036     { ep_sp_element,            EP_SP_ELEMENT           },
3037     { ep_sb_element,            EP_SB_ELEMENT           },
3038     { ep_gem,                   EP_GEM                  },
3039     { ep_food_dark_yamyam,      EP_FOOD_DARK_YAMYAM     },
3040     { ep_food_penguin,          EP_FOOD_PENGUIN         },
3041     { ep_food_pig,              EP_FOOD_PIG             },
3042     { ep_historic_wall,         EP_HISTORIC_WALL        },
3043     { ep_historic_solid,        EP_HISTORIC_SOLID       },
3044     { ep_classic_enemy,         EP_CLASSIC_ENEMY        },
3045     { ep_belt,                  EP_BELT                 },
3046     { ep_belt_active,           EP_BELT_ACTIVE          },
3047     { ep_belt_switch,           EP_BELT_SWITCH          },
3048     { ep_tube,                  EP_TUBE                 },
3049     { ep_keygate,               EP_KEYGATE              },
3050     { ep_amoeboid,              EP_AMOEBOID             },
3051     { ep_amoebalive,            EP_AMOEBALIVE           },
3052     { ep_has_content,           EP_HAS_CONTENT          },
3053     { ep_active_bomb,           EP_ACTIVE_BOMB          },
3054     { ep_inactive,              EP_INACTIVE             },
3055
3056     { ep_em_slippery_wall,      EP_EM_SLIPPERY_WALL     },
3057
3058     { ep_gfx_crumbled,          EP_GFX_CRUMBLED         },
3059
3060     { NULL,                     -1                      }
3061   };
3062
3063   static int copy_properties[][5] =
3064   {
3065     {
3066       EL_BUG,
3067       EL_BUG_LEFT,              EL_BUG_RIGHT,
3068       EL_BUG_UP,                EL_BUG_DOWN
3069     },
3070     {
3071       EL_SPACESHIP,
3072       EL_SPACESHIP_LEFT,        EL_SPACESHIP_RIGHT,
3073       EL_SPACESHIP_UP,          EL_SPACESHIP_DOWN
3074     },
3075     {
3076       EL_BD_BUTTERFLY,
3077       EL_BD_BUTTERFLY_LEFT,     EL_BD_BUTTERFLY_RIGHT,
3078       EL_BD_BUTTERFLY_UP,       EL_BD_BUTTERFLY_DOWN
3079     },
3080     {
3081       EL_BD_FIREFLY,
3082       EL_BD_FIREFLY_LEFT,       EL_BD_FIREFLY_RIGHT,
3083       EL_BD_FIREFLY_UP,         EL_BD_FIREFLY_DOWN
3084     },
3085     {
3086       EL_PACMAN,
3087       EL_PACMAN_LEFT,           EL_PACMAN_RIGHT,
3088       EL_PACMAN_UP,             EL_PACMAN_DOWN
3089     },
3090     {
3091       EL_MOLE,
3092       EL_MOLE_LEFT,             EL_MOLE_RIGHT,
3093       EL_MOLE_UP,               EL_MOLE_DOWN
3094     },
3095     {
3096       -1,
3097       -1, -1, -1, -1
3098     }
3099   };
3100
3101   int i, j, k;
3102
3103   /* always start with reliable default values (element has no properties) */
3104   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3105     for (j = 0; j < NUM_ELEMENT_PROPERTIES; j++)
3106       SET_PROPERTY(i, j, FALSE);
3107
3108   /* set all base element properties from above array definitions */
3109   for (i = 0; element_properties[i].elements != NULL; i++)
3110     for (j = 0; (element_properties[i].elements)[j] != -1; j++)
3111       SET_PROPERTY((element_properties[i].elements)[j],
3112                    element_properties[i].property, TRUE);
3113
3114   /* copy properties to some elements that are only stored in level file */
3115   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
3116     for (j = 0; copy_properties[j][0] != -1; j++)
3117       if (HAS_PROPERTY(copy_properties[j][0], i))
3118         for (k = 1; k <= 4; k++)
3119           SET_PROPERTY(copy_properties[j][k], i, TRUE);
3120 }
3121
3122 void InitElementPropertiesEngine(int engine_version)
3123 {
3124 #if 0
3125   static int active_properties[] =
3126   {
3127     EP_AMOEBALIVE,
3128     EP_AMOEBOID,
3129     EP_PFORTE,
3130     EP_DONT_COLLIDE_WITH,
3131     EP_MAUER,
3132     EP_CAN_FALL,
3133     EP_CAN_SMASH,
3134     EP_CAN_PASS_MAGIC_WALL,
3135     EP_CAN_MOVE,
3136     EP_DONT_TOUCH,
3137     EP_DONT_RUN_INTO,
3138     EP_GEM,
3139     EP_CAN_EXPLODE_BY_FIRE,
3140     EP_PUSHABLE,
3141     EP_PLAYER,
3142     EP_HAS_CONTENT,
3143     EP_DIGGABLE,
3144     EP_PASSABLE_INSIDE,
3145     EP_OVER_PLAYER,
3146     EP_ACTIVE_BOMB,
3147
3148     EP_BELT,
3149     EP_BELT_ACTIVE,
3150     EP_BELT_SWITCH,
3151     EP_WALKABLE_UNDER,
3152     EP_EM_SLIPPERY_WALL,
3153   };
3154 #endif
3155
3156   static int no_wall_properties[] =
3157   {
3158     EP_DIGGABLE,
3159     EP_COLLECTIBLE_ONLY,
3160     EP_DONT_RUN_INTO,
3161     EP_DONT_COLLIDE_WITH,
3162     EP_CAN_MOVE,
3163     EP_CAN_FALL,
3164     EP_CAN_SMASH_PLAYER,
3165     EP_CAN_SMASH_ENEMIES,
3166     EP_CAN_SMASH_EVERYTHING,
3167     EP_PUSHABLE,
3168
3169     EP_PLAYER,
3170     EP_GEM,
3171     EP_FOOD_DARK_YAMYAM,
3172     EP_FOOD_PENGUIN,
3173     EP_BELT,
3174     EP_BELT_ACTIVE,
3175     EP_TUBE,
3176     EP_AMOEBOID,
3177     EP_AMOEBALIVE,
3178     EP_ACTIVE_BOMB,
3179
3180     EP_ACCESSIBLE,
3181
3182     -1
3183   };
3184
3185   int i, j;
3186
3187 #if 0
3188   InitElementPropertiesStatic();
3189 #endif
3190
3191   /* important: after initialization in InitElementPropertiesStatic(), the
3192      elements are not again initialized to a default value; therefore all
3193      changes have to make sure that they leave the element with a defined
3194      property (which means that conditional property changes must be set to
3195      a reliable default value before) */
3196
3197   /* set all special, combined or engine dependent element properties */
3198   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3199   {
3200 #if 0
3201     for (j = EP_ACCESSIBLE_OVER; j < NUM_ELEMENT_PROPERTIES; j++)
3202       SET_PROPERTY(i, j, FALSE);
3203 #endif
3204
3205     /* ---------- INACTIVE ------------------------------------------------- */
3206     SET_PROPERTY(i, EP_INACTIVE, (i >= EL_CHAR_START && i <= EL_CHAR_END));
3207
3208     /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
3209     SET_PROPERTY(i, EP_WALKABLE, (IS_WALKABLE_OVER(i) ||
3210                                   IS_WALKABLE_INSIDE(i) ||
3211                                   IS_WALKABLE_UNDER(i)));
3212
3213     SET_PROPERTY(i, EP_PASSABLE, (IS_PASSABLE_OVER(i) ||
3214                                   IS_PASSABLE_INSIDE(i) ||
3215                                   IS_PASSABLE_UNDER(i)));
3216
3217     SET_PROPERTY(i, EP_ACCESSIBLE_OVER, (IS_WALKABLE_OVER(i) ||
3218                                          IS_PASSABLE_OVER(i)));
3219
3220     SET_PROPERTY(i, EP_ACCESSIBLE_INSIDE, (IS_WALKABLE_INSIDE(i) ||
3221                                            IS_PASSABLE_INSIDE(i)));
3222
3223     SET_PROPERTY(i, EP_ACCESSIBLE_UNDER, (IS_WALKABLE_UNDER(i) ||
3224                                           IS_PASSABLE_UNDER(i)));
3225
3226     SET_PROPERTY(i, EP_ACCESSIBLE, (IS_WALKABLE(i) ||
3227                                     IS_PASSABLE(i)));
3228
3229     /* ---------- COLLECTIBLE ---------------------------------------------- */
3230     SET_PROPERTY(i, EP_COLLECTIBLE, (IS_COLLECTIBLE_ONLY(i) ||
3231                                      IS_DROPPABLE(i)));
3232
3233     /* ---------- SNAPPABLE ------------------------------------------------ */
3234     SET_PROPERTY(i, EP_SNAPPABLE, (IS_DIGGABLE(i) ||
3235                                    IS_COLLECTIBLE(i) ||
3236                                    IS_SWITCHABLE(i) ||
3237                                    i == EL_BD_ROCK));
3238
3239     /* ---------- WALL ----------------------------------------------------- */
3240     SET_PROPERTY(i, EP_WALL, TRUE);     /* default: element is wall */
3241
3242     for (j = 0; no_wall_properties[j] != -1; j++)
3243       if (HAS_PROPERTY(i, no_wall_properties[j]) ||
3244           i >= EL_FIRST_RUNTIME_UNREAL)
3245         SET_PROPERTY(i, EP_WALL, FALSE);
3246
3247     if (IS_HISTORIC_WALL(i))
3248       SET_PROPERTY(i, EP_WALL, TRUE);
3249
3250     /* ---------- SOLID_FOR_PUSHING ---------------------------------------- */
3251     if (engine_version < VERSION_IDENT(2,2,0,0))
3252       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, IS_HISTORIC_SOLID(i));
3253     else
3254       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, (!IS_WALKABLE(i) &&
3255                                              !IS_DIGGABLE(i) &&
3256                                              !IS_COLLECTIBLE(i)));
3257
3258 #if 1
3259     /* ---------- PROTECTED ------------------------------------------------ */
3260     if (IS_ACCESSIBLE_INSIDE(i))
3261       SET_PROPERTY(i, EP_PROTECTED, TRUE);
3262 #endif
3263
3264     /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
3265
3266     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
3267       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
3268     else
3269       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, (IS_CUSTOM_ELEMENT(i) &&
3270                                             IS_INDESTRUCTIBLE(i)));
3271
3272     /* ---------- EXPLOSION_PROOF ------------------------------------------ */
3273     if (i == EL_FLAMES)
3274       SET_PROPERTY(i, EP_EXPLOSION_PROOF, TRUE);
3275     else if (engine_version < VERSION_IDENT(2,2,0,0))
3276       SET_PROPERTY(i, EP_EXPLOSION_PROOF, IS_INDESTRUCTIBLE(i));
3277     else
3278 #if 1
3279       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3280                                            (!IS_WALKABLE(i) ||
3281                                             IS_PROTECTED(i))));
3282 #else
3283 #if 1
3284       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3285                                            !IS_WALKABLE_OVER(i) &&
3286                                            !IS_WALKABLE_UNDER(i)));
3287 #else
3288       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3289                                            IS_PROTECTED(i)));
3290 #endif
3291 #endif
3292
3293     if (IS_CUSTOM_ELEMENT(i))
3294     {
3295       /* these are additional properties which are initially false when set */
3296
3297       /* ---------- DONT_COLLIDE_WITH / DONT_RUN_INTO ---------------------- */
3298       if (DONT_TOUCH(i))
3299         SET_PROPERTY(i, EP_DONT_COLLIDE_WITH, TRUE);
3300       if (DONT_COLLIDE_WITH(i))
3301         SET_PROPERTY(i, EP_DONT_RUN_INTO, TRUE);
3302
3303       /* ---------- CAN_SMASH_ENEMIES / CAN_SMASH_PLAYER ------------------- */
3304       if (CAN_SMASH_EVERYTHING(i))
3305         SET_PROPERTY(i, EP_CAN_SMASH_ENEMIES, TRUE);
3306       if (CAN_SMASH_ENEMIES(i))
3307         SET_PROPERTY(i, EP_CAN_SMASH_PLAYER, TRUE);
3308     }
3309
3310     /* ---------- CAN_SMASH ------------------------------------------------ */
3311     SET_PROPERTY(i, EP_CAN_SMASH, (CAN_SMASH_PLAYER(i) ||
3312                                    CAN_SMASH_ENEMIES(i) ||
3313                                    CAN_SMASH_EVERYTHING(i)));
3314
3315     /* ---------- CAN_EXPLODE ---------------------------------------------- */
3316     SET_PROPERTY(i, EP_CAN_EXPLODE, (CAN_EXPLODE_BY_FIRE(i) ||
3317                                      CAN_EXPLODE_SMASHED(i) ||
3318                                      CAN_EXPLODE_IMPACT(i)));
3319
3320     /* ---------- CAN_EXPLODE_3X3 ------------------------------------------ */
3321     SET_PROPERTY(i, EP_CAN_EXPLODE_3X3, (CAN_EXPLODE(i) &&
3322                                          !CAN_EXPLODE_1X1(i) &&
3323                                          !CAN_EXPLODE_DYNA(i)));
3324
3325     /* ---------- CAN_EXPLODE_BY_DRAGONFIRE -------------------------------- */
3326     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_DRAGONFIRE, CAN_EXPLODE_BY_FIRE(i));
3327
3328     /* ---------- CAN_EXPLODE_BY_EXPLOSION --------------------------------- */
3329     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_EXPLOSION, (CAN_EXPLODE_BY_FIRE(i) ||
3330                                                   i == EL_BLACK_ORB));
3331
3332     /* ---------- COULD_MOVE_INTO_ACID ------------------------------------- */
3333     SET_PROPERTY(i, EP_COULD_MOVE_INTO_ACID, (CAN_MOVE(i) ||
3334                                               IS_CUSTOM_ELEMENT(i)));
3335
3336     /* ---------- MAYBE_DONT_COLLIDE_WITH ---------------------------------- */
3337     SET_PROPERTY(i, EP_MAYBE_DONT_COLLIDE_WITH, (i == EL_SP_SNIKSNAK ||
3338                                                  i == EL_SP_ELECTRON));
3339
3340     /* ---------- CAN_MOVE_INTO_ACID --------------------------------------- */
3341     if (COULD_MOVE_INTO_ACID(i) && !IS_CUSTOM_ELEMENT(i))
3342       SET_PROPERTY(i, EP_CAN_MOVE_INTO_ACID,
3343                    getMoveIntoAcidProperty(&level, i));
3344
3345     /* ---------- DONT_COLLIDE_WITH ---------------------------------------- */
3346     if (MAYBE_DONT_COLLIDE_WITH(i))
3347       SET_PROPERTY(i, EP_DONT_COLLIDE_WITH,
3348                    getDontCollideWithProperty(&level, i));
3349
3350     /* ---------- SP_PORT -------------------------------------------------- */
3351     SET_PROPERTY(i, EP_SP_PORT, (IS_SP_ELEMENT(i) &&
3352                                  IS_PASSABLE_INSIDE(i)));
3353
3354 #if 0
3355     if (i == EL_CUSTOM_START + 253)
3356       printf("::: %d, %d, %d -> %d\n",
3357              CAN_EXPLODE_1X1(i),
3358              CAN_EXPLODE_3X3(i),
3359              CAN_EXPLODE_DYNA(i),
3360              CAN_EXPLODE(i));
3361 #endif
3362
3363     /* ---------- CAN_CHANGE ----------------------------------------------- */
3364     SET_PROPERTY(i, EP_CAN_CHANGE, FALSE);      /* default: cannot change */
3365     for (j = 0; j < element_info[i].num_change_pages; j++)
3366       if (element_info[i].change_page[j].can_change)
3367         SET_PROPERTY(i, EP_CAN_CHANGE, TRUE);
3368
3369     /* ---------- GFX_CRUMBLED --------------------------------------------- */
3370     SET_PROPERTY(i, EP_GFX_CRUMBLED,
3371                  element_info[i].crumbled[ACTION_DEFAULT] != IMG_EMPTY);
3372   }
3373
3374 #if 0
3375   /* determine inactive elements (used for engine main loop optimization) */
3376   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3377   {
3378     boolean active = FALSE;
3379
3380     for (j = 0; i < NUM_ELEMENT_PROPERTIES; j++)
3381     {
3382       if (HAS_PROPERTY(i, j))
3383         active = TRUE;
3384     }
3385
3386 #if 0
3387     if (!active)
3388       SET_PROPERTY(i, EP_INACTIVE, TRUE);
3389 #endif
3390   }
3391 #endif
3392
3393   /* dynamically adjust element properties according to game engine version */
3394   {
3395     static int ep_em_slippery_wall[] =
3396     {
3397       EL_STEELWALL,
3398       EL_WALL,
3399       EL_EXPANDABLE_WALL,
3400       EL_EXPANDABLE_WALL_HORIZONTAL,
3401       EL_EXPANDABLE_WALL_VERTICAL,
3402       EL_EXPANDABLE_WALL_ANY,
3403       -1
3404     };
3405
3406     /* special EM style gems behaviour */
3407     for (i = 0; ep_em_slippery_wall[i] != -1; i++)
3408       SET_PROPERTY(ep_em_slippery_wall[i], EP_EM_SLIPPERY_WALL,
3409                    level.em_slippery_gems);
3410
3411     /* "EL_EXPANDABLE_WALL_GROWING" wasn't slippery for EM gems in 2.0.1 */
3412     SET_PROPERTY(EL_EXPANDABLE_WALL_GROWING, EP_EM_SLIPPERY_WALL,
3413                  (level.em_slippery_gems &&
3414                   engine_version > VERSION_IDENT(2,0,1,0)));
3415   }
3416
3417 #if 1
3418   /* set default push delay values (corrected since version 3.0.7-1) */
3419   if (engine_version < VERSION_IDENT(3,0,7,1))
3420   {
3421     game.default_push_delay_fixed = 2;
3422     game.default_push_delay_random = 8;
3423   }
3424   else
3425   {
3426     game.default_push_delay_fixed = 8;
3427     game.default_push_delay_random = 8;
3428   }
3429
3430   /* set uninitialized push delay values of custom elements in older levels */
3431   for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
3432   {
3433     int element = EL_CUSTOM_START + i;
3434
3435     if (element_info[element].push_delay_fixed == -1)
3436       element_info[element].push_delay_fixed = game.default_push_delay_fixed;
3437     if (element_info[element].push_delay_random == -1)
3438       element_info[element].push_delay_random = game.default_push_delay_random;
3439   }
3440
3441   /* set some other uninitialized values of custom elements in older levels */
3442   if (engine_version < VERSION_IDENT(3,1,0,0))
3443   {
3444     for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
3445     {
3446       int element = EL_CUSTOM_START + i;
3447
3448       element_info[element].access_direction = MV_ALL_DIRECTIONS;
3449
3450       element_info[element].explosion_delay = 17;
3451       element_info[element].ignition_delay = 8;
3452     }
3453   }
3454
3455 #if 0
3456   /* set element properties that were handled incorrectly in older levels */
3457   if (engine_version < VERSION_IDENT(3,1,0,0))
3458   {
3459     SET_PROPERTY(EL_SP_SNIKSNAK, EP_DONT_COLLIDE_WITH, FALSE);
3460     SET_PROPERTY(EL_SP_ELECTRON, EP_DONT_COLLIDE_WITH, FALSE);
3461   }
3462 #endif
3463
3464 #endif
3465
3466   /* this is needed because some graphics depend on element properties */
3467   if (game_status == GAME_MODE_PLAYING)
3468     InitElementGraphicInfo();
3469 }
3470
3471 static void InitGlobal()
3472 {
3473   global.autoplay_leveldir = NULL;
3474
3475   global.frames_per_second = 0;
3476   global.fps_slowdown = FALSE;
3477   global.fps_slowdown_factor = 1;
3478 }
3479
3480 void Execute_Command(char *command)
3481 {
3482   int i;
3483
3484   if (strcmp(command, "print graphicsinfo.conf") == 0)
3485   {
3486     printf("# You can configure additional/alternative image files here.\n");
3487     printf("# (The entries below are default and therefore commented out.)\n");
3488     printf("\n");
3489     printf("%s\n", getFormattedSetupEntry("name", "Classic Graphics"));
3490     printf("\n");
3491     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3492     printf("\n");
3493
3494     for (i = 0; image_config[i].token != NULL; i++)
3495       printf("# %s\n", getFormattedSetupEntry(image_config[i].token,
3496                                               image_config[i].value));
3497
3498     exit(0);
3499   }
3500   else if (strcmp(command, "print soundsinfo.conf") == 0)
3501   {
3502     printf("# You can configure additional/alternative sound files here.\n");
3503     printf("# (The entries below are default and therefore commented out.)\n");
3504     printf("\n");
3505     printf("%s\n", getFormattedSetupEntry("name", "Classic Sounds"));
3506     printf("\n");
3507     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3508     printf("\n");
3509
3510     for (i = 0; sound_config[i].token != NULL; i++)
3511       printf("# %s\n", getFormattedSetupEntry(sound_config[i].token,
3512                                               sound_config[i].value));
3513
3514     exit(0);
3515   }
3516   else if (strcmp(command, "print musicinfo.conf") == 0)
3517   {
3518     printf("# You can configure additional/alternative music files here.\n");
3519     printf("# (The entries below are default and therefore commented out.)\n");
3520     printf("\n");
3521     printf("%s\n", getFormattedSetupEntry("name", "Classic Music"));
3522     printf("\n");
3523     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3524     printf("\n");
3525
3526     for (i = 0; music_config[i].token != NULL; i++)
3527       printf("# %s\n", getFormattedSetupEntry(music_config[i].token,
3528                                               music_config[i].value));
3529
3530     exit(0);
3531   }
3532   else if (strcmp(command, "print editorsetup.conf") == 0)
3533   {
3534     printf("# You can configure your personal editor element list here.\n");
3535     printf("# (The entries below are default and therefore commented out.)\n");
3536     printf("\n");
3537
3538     PrintEditorElementList();
3539
3540     exit(0);
3541   }
3542   else if (strcmp(command, "print helpanim.conf") == 0)
3543   {
3544     printf("# You can configure different element help animations here.\n");
3545     printf("# (The entries below are default and therefore commented out.)\n");
3546     printf("\n");
3547
3548     for (i = 0; helpanim_config[i].token != NULL; i++)
3549     {
3550       printf("# %s\n", getFormattedSetupEntry(helpanim_config[i].token,
3551                                               helpanim_config[i].value));
3552
3553       if (strcmp(helpanim_config[i].token, "end") == 0)
3554         printf("#\n");
3555     }
3556
3557     exit(0);
3558   }
3559   else if (strcmp(command, "print helptext.conf") == 0)
3560   {
3561     printf("# You can configure different element help text here.\n");
3562     printf("# (The entries below are default and therefore commented out.)\n");
3563     printf("\n");
3564
3565     for (i = 0; helptext_config[i].token != NULL; i++)
3566       printf("# %s\n", getFormattedSetupEntry(helptext_config[i].token,
3567                                               helptext_config[i].value));
3568
3569     exit(0);
3570   }
3571   else if (strncmp(command, "dump level ", 11) == 0)
3572   {
3573     char *filename = &command[11];
3574
3575     if (access(filename, F_OK) != 0)
3576       Error(ERR_EXIT, "cannot open file '%s'", filename);
3577
3578     LoadLevelFromFilename(&level, filename);
3579     DumpLevel(&level);
3580
3581     exit(0);
3582   }
3583   else if (strncmp(command, "dump tape ", 10) == 0)
3584   {
3585     char *filename = &command[10];
3586
3587     if (access(filename, F_OK) != 0)
3588       Error(ERR_EXIT, "cannot open file '%s'", filename);
3589
3590     LoadTapeFromFilename(filename);
3591     DumpTape(&tape);
3592
3593     exit(0);
3594   }
3595   else if (strncmp(command, "autoplay ", 9) == 0)
3596   {
3597     char *str_copy = getStringCopy(&command[9]);
3598     char *str_ptr = strchr(str_copy, ' ');
3599
3600     global.autoplay_leveldir = str_copy;
3601     global.autoplay_level_nr = -1;
3602
3603     if (str_ptr != NULL)
3604     {
3605       *str_ptr++ = '\0';                        /* terminate leveldir string */
3606       global.autoplay_level_nr = atoi(str_ptr); /* get level_nr value */
3607     }
3608   }
3609   else
3610   {
3611     Error(ERR_EXIT_HELP, "unrecognized command '%s'", command);
3612   }
3613 }
3614
3615 static void InitSetup()
3616 {
3617   LoadSetup();                                  /* global setup info */
3618
3619   /* set some options from setup file */
3620
3621   if (setup.options.verbose)
3622     options.verbose = TRUE;
3623 }
3624
3625 static void InitPlayerInfo()
3626 {
3627   int i;
3628
3629   /* choose default local player */
3630   local_player = &stored_player[0];
3631
3632   for (i = 0; i < MAX_PLAYERS; i++)
3633     stored_player[i].connected = FALSE;
3634
3635   local_player->connected = TRUE;
3636 }
3637
3638 static void InitArtworkInfo()
3639 {
3640   LoadArtworkInfo();
3641 }
3642
3643 static char *get_string_in_brackets(char *string)
3644 {
3645   char *string_in_brackets = checked_malloc(strlen(string) + 3);
3646
3647   sprintf(string_in_brackets, "[%s]", string);
3648
3649   return string_in_brackets;
3650 }
3651
3652 static char *get_level_id_suffix(int id_nr)
3653 {
3654   char *id_suffix = checked_malloc(1 + 3 + 1);
3655
3656   if (id_nr < 0 || id_nr > 999)
3657     id_nr = 0;
3658
3659   sprintf(id_suffix, ".%03d", id_nr);
3660
3661   return id_suffix;
3662 }
3663
3664 #if 0
3665 static char *get_element_class_token(int element)
3666 {
3667   char *element_class_name = element_info[element].class_name;
3668   char *element_class_token = checked_malloc(strlen(element_class_name) + 3);
3669
3670   sprintf(element_class_token, "[%s]", element_class_name);
3671
3672   return element_class_token;
3673 }
3674
3675 static char *get_action_class_token(int action)
3676 {
3677   char *action_class_name = &element_action_info[action].suffix[1];
3678   char *action_class_token = checked_malloc(strlen(action_class_name) + 3);
3679
3680   sprintf(action_class_token, "[%s]", action_class_name);
3681
3682   return action_class_token;
3683 }
3684 #endif
3685
3686 static void InitArtworkConfig()
3687 {
3688   static char *image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS + 1];
3689   static char *sound_id_prefix[2 * MAX_NUM_ELEMENTS + 1];
3690   static char *music_id_prefix[NUM_MUSIC_PREFIXES + 1];
3691   static char *action_id_suffix[NUM_ACTIONS + 1];
3692   static char *direction_id_suffix[NUM_DIRECTIONS + 1];
3693   static char *special_id_suffix[NUM_SPECIAL_GFX_ARGS + 1];
3694   static char *level_id_suffix[MAX_LEVELS + 1];
3695   static char *dummy[1] = { NULL };
3696   static char *ignore_generic_tokens[] =
3697   {
3698     "name",
3699     "sort_priority",
3700     NULL
3701   };
3702   static char **ignore_image_tokens;
3703   static char **ignore_sound_tokens;
3704   static char **ignore_music_tokens;
3705   int num_ignore_generic_tokens;
3706   int num_ignore_image_tokens;
3707   int num_ignore_sound_tokens;
3708   int num_ignore_music_tokens;
3709   int i;
3710
3711   /* dynamically determine list of generic tokens to be ignored */
3712   num_ignore_generic_tokens = 0;
3713   for (i = 0; ignore_generic_tokens[i] != NULL; i++)
3714     num_ignore_generic_tokens++;
3715
3716   /* dynamically determine list of image tokens to be ignored */
3717   num_ignore_image_tokens = num_ignore_generic_tokens;
3718   for (i = 0; image_config_vars[i].token != NULL; i++)
3719     num_ignore_image_tokens++;
3720   ignore_image_tokens =
3721     checked_malloc((num_ignore_image_tokens + 1) * sizeof(char *));
3722   for (i = 0; i < num_ignore_generic_tokens; i++)
3723     ignore_image_tokens[i] = ignore_generic_tokens[i];
3724   for (i = 0; i < num_ignore_image_tokens - num_ignore_generic_tokens; i++)
3725     ignore_image_tokens[num_ignore_generic_tokens + i] =
3726       image_config_vars[i].token;
3727   ignore_image_tokens[num_ignore_image_tokens] = NULL;
3728
3729   /* dynamically determine list of sound tokens to be ignored */
3730   num_ignore_sound_tokens = num_ignore_generic_tokens;
3731   ignore_sound_tokens =
3732     checked_malloc((num_ignore_sound_tokens + 1) * sizeof(char *));
3733   for (i = 0; i < num_ignore_generic_tokens; i++)
3734     ignore_sound_tokens[i] = ignore_generic_tokens[i];
3735   ignore_sound_tokens[num_ignore_sound_tokens] = NULL;
3736
3737   /* dynamically determine list of music tokens to be ignored */
3738   num_ignore_music_tokens = num_ignore_generic_tokens;
3739   ignore_music_tokens =
3740     checked_malloc((num_ignore_music_tokens + 1) * sizeof(char *));
3741   for (i = 0; i < num_ignore_generic_tokens; i++)
3742     ignore_music_tokens[i] = ignore_generic_tokens[i];
3743   ignore_music_tokens[num_ignore_music_tokens] = NULL;
3744
3745   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3746     image_id_prefix[i] = element_info[i].token_name;
3747   for (i = 0; i < NUM_FONTS; i++)
3748     image_id_prefix[MAX_NUM_ELEMENTS + i] = font_info[i].token_name;
3749   image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS] = NULL;
3750
3751   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3752     sound_id_prefix[i] = element_info[i].token_name;
3753   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3754     sound_id_prefix[MAX_NUM_ELEMENTS + i] =
3755       get_string_in_brackets(element_info[i].class_name);
3756   sound_id_prefix[2 * MAX_NUM_ELEMENTS] = NULL;
3757
3758   for (i = 0; i < NUM_MUSIC_PREFIXES; i++)
3759     music_id_prefix[i] = music_prefix_info[i].prefix;
3760   music_id_prefix[MAX_LEVELS] = NULL;
3761
3762   for (i = 0; i < NUM_ACTIONS; i++)
3763     action_id_suffix[i] = element_action_info[i].suffix;
3764   action_id_suffix[NUM_ACTIONS] = NULL;
3765
3766   for (i = 0; i < NUM_DIRECTIONS; i++)
3767     direction_id_suffix[i] = element_direction_info[i].suffix;
3768   direction_id_suffix[NUM_DIRECTIONS] = NULL;
3769
3770   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
3771     special_id_suffix[i] = special_suffix_info[i].suffix;
3772   special_id_suffix[NUM_SPECIAL_GFX_ARGS] = NULL;
3773
3774   for (i = 0; i < MAX_LEVELS; i++)
3775     level_id_suffix[i] = get_level_id_suffix(i);
3776   level_id_suffix[MAX_LEVELS] = NULL;
3777
3778   InitImageList(image_config, NUM_IMAGE_FILES, image_config_suffix,
3779                 image_id_prefix, action_id_suffix, direction_id_suffix,
3780                 special_id_suffix, ignore_image_tokens);
3781   InitSoundList(sound_config, NUM_SOUND_FILES, sound_config_suffix,
3782                 sound_id_prefix, action_id_suffix, dummy,
3783                 special_id_suffix, ignore_sound_tokens);
3784   InitMusicList(music_config, NUM_MUSIC_FILES, music_config_suffix,
3785                 music_id_prefix, special_id_suffix, level_id_suffix,
3786                 dummy, ignore_music_tokens);
3787 }
3788
3789 static void InitMixer()
3790 {
3791   OpenAudio();
3792   StartMixer();
3793 }
3794
3795 void InitGfx()
3796 {
3797   char *filename_font_initial = NULL;
3798   Bitmap *bitmap_font_initial = NULL;
3799   int i, j;
3800
3801   /* determine settings for initial font (for displaying startup messages) */
3802   for (i = 0; image_config[i].token != NULL; i++)
3803   {
3804     for (j = 0; j < NUM_INITIAL_FONTS; j++)
3805     {
3806       char font_token[128];
3807       int len_font_token;
3808
3809       sprintf(font_token, "%s_%d", CONFIG_TOKEN_FONT_INITIAL, j + 1);
3810       len_font_token = strlen(font_token);
3811
3812       if (strcmp(image_config[i].token, font_token) == 0)
3813         filename_font_initial = image_config[i].value;
3814       else if (strlen(image_config[i].token) > len_font_token &&
3815                strncmp(image_config[i].token, font_token, len_font_token) == 0)
3816       {
3817         if (strcmp(&image_config[i].token[len_font_token], ".x") == 0)
3818           font_initial[j].src_x = atoi(image_config[i].value);
3819         else if (strcmp(&image_config[i].token[len_font_token], ".y") == 0)
3820           font_initial[j].src_y = atoi(image_config[i].value);
3821         else if (strcmp(&image_config[i].token[len_font_token], ".width") == 0)
3822           font_initial[j].width = atoi(image_config[i].value);
3823         else if (strcmp(&image_config[i].token[len_font_token],".height") == 0)
3824           font_initial[j].height = atoi(image_config[i].value);
3825       }
3826     }
3827   }
3828
3829   for (j = 0; j < NUM_INITIAL_FONTS; j++)
3830   {
3831     font_initial[j].num_chars = DEFAULT_NUM_CHARS_PER_FONT;
3832     font_initial[j].num_chars_per_line = DEFAULT_NUM_CHARS_PER_LINE;
3833   }
3834
3835   if (filename_font_initial == NULL)    /* should not happen */
3836     Error(ERR_EXIT, "cannot get filename for '%s'", CONFIG_TOKEN_FONT_INITIAL);
3837
3838   /* create additional image buffers for double-buffering */
3839   bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
3840   bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
3841
3842   /* initialize screen properties */
3843   InitGfxFieldInfo(SX, SY, SXSIZE, SYSIZE,
3844                    REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE,
3845                    bitmap_db_field);
3846   InitGfxDoor1Info(DX, DY, DXSIZE, DYSIZE);
3847   InitGfxDoor2Info(VX, VY, VXSIZE, VYSIZE);
3848   InitGfxScrollbufferInfo(FXSIZE, FYSIZE);
3849
3850   bitmap_font_initial = LoadCustomImage(filename_font_initial);
3851
3852   for (j = 0; j < NUM_INITIAL_FONTS; j++)
3853     font_initial[j].bitmap = bitmap_font_initial;
3854
3855   InitFontGraphicInfo();
3856
3857   DrawInitText(getProgramInitString(), 20, FC_YELLOW);
3858   DrawInitText(PROGRAM_COPYRIGHT_STRING, 50, FC_RED);
3859
3860   DrawInitText("Loading graphics:", 120, FC_GREEN);
3861
3862   InitTileClipmasks();
3863 }
3864
3865 void InitGfxBackground()
3866 {
3867   int x, y;
3868
3869   drawto = backbuffer;
3870   fieldbuffer = bitmap_db_field;
3871   SetDrawtoField(DRAW_BACKBUFFER);
3872
3873   BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, backbuffer,
3874              0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
3875   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
3876   ClearRectangle(bitmap_db_door, 0, 0, 3 * DXSIZE, DYSIZE + VYSIZE);
3877
3878   for (x = 0; x < MAX_BUF_XSIZE; x++)
3879     for (y = 0; y < MAX_BUF_YSIZE; y++)
3880       redraw[x][y] = 0;
3881   redraw_tiles = 0;
3882   redraw_mask = REDRAW_ALL;
3883 }
3884
3885 static void InitLevelInfo()
3886 {
3887   LoadLevelInfo();                              /* global level info */
3888   LoadLevelSetup_LastSeries();                  /* last played series info */
3889   LoadLevelSetup_SeriesInfo();                  /* last played level info */
3890 }
3891
3892 void InitLevelArtworkInfo()
3893 {
3894   LoadLevelArtworkInfo();
3895 }
3896
3897 static void InitImages()
3898 {
3899 #if 1
3900   setLevelArtworkDir(artwork.gfx_first);
3901 #endif
3902
3903 #if 0
3904   printf("::: InitImages for '%s' ['%s', '%s'] ['%s', '%s']\n",
3905          leveldir_current->identifier,
3906          artwork.gfx_current_identifier,
3907          artwork.gfx_current->identifier,
3908          leveldir_current->graphics_set,
3909          leveldir_current->graphics_path);
3910 #endif
3911
3912   ReloadCustomImages();
3913
3914   LoadCustomElementDescriptions();
3915   LoadSpecialMenuDesignSettings();
3916
3917   ReinitializeGraphics();
3918 }
3919
3920 static void InitSound(char *identifier)
3921 {
3922   if (identifier == NULL)
3923     identifier = artwork.snd_current->identifier;
3924
3925 #if 1
3926   /* set artwork path to send it to the sound server process */
3927   setLevelArtworkDir(artwork.snd_first);
3928 #endif
3929
3930   InitReloadCustomSounds(identifier);
3931   ReinitializeSounds();
3932 }
3933
3934 static void InitMusic(char *identifier)
3935 {
3936   if (identifier == NULL)
3937     identifier = artwork.mus_current->identifier;
3938
3939 #if 1
3940   /* set artwork path to send it to the sound server process */
3941   setLevelArtworkDir(artwork.mus_first);
3942 #endif
3943
3944   InitReloadCustomMusic(identifier);
3945   ReinitializeMusic();
3946 }
3947
3948 void InitNetworkServer()
3949 {
3950 #if defined(PLATFORM_UNIX)
3951   int nr_wanted;
3952 #endif
3953
3954   if (!options.network)
3955     return;
3956
3957 #if defined(PLATFORM_UNIX)
3958   nr_wanted = Request("Choose player", REQ_PLAYER | REQ_STAY_CLOSED);
3959
3960   if (!ConnectToServer(options.server_host, options.server_port))
3961     Error(ERR_EXIT, "cannot connect to network game server");
3962
3963   SendToServer_PlayerName(setup.player_name);
3964   SendToServer_ProtocolVersion();
3965
3966   if (nr_wanted)
3967     SendToServer_NrWanted(nr_wanted);
3968 #endif
3969 }
3970
3971 static char *getNewArtworkIdentifier(int type)
3972 {
3973   static char *leveldir_current_identifier[3] = { NULL, NULL, NULL };
3974   static boolean last_override_level_artwork[3] = { FALSE, FALSE, FALSE };
3975   static boolean last_has_level_artwork_set[3] = { FALSE, FALSE, FALSE };
3976   static boolean initialized[3] = { FALSE, FALSE, FALSE };
3977   TreeInfo *artwork_first_node = ARTWORK_FIRST_NODE(artwork, type);
3978   boolean setup_override_artwork = SETUP_OVERRIDE_ARTWORK(setup, type);
3979   char *setup_artwork_set = SETUP_ARTWORK_SET(setup, type);
3980   char *leveldir_identifier = leveldir_current->identifier;
3981 #if 1
3982   /* !!! setLevelArtworkDir() should be moved to an earlier stage !!! */
3983   char *leveldir_artwork_set = setLevelArtworkDir(artwork_first_node);
3984 #else
3985   char *leveldir_artwork_set = LEVELDIR_ARTWORK_SET(leveldir_current, type);
3986 #endif
3987   boolean has_level_artwork_set = (leveldir_artwork_set != NULL);
3988   char *artwork_current_identifier;
3989   char *artwork_new_identifier = NULL;  /* default: nothing has changed */
3990
3991   /* leveldir_current may be invalid (level group, parent link) */
3992   if (!validLevelSeries(leveldir_current))
3993     return NULL;
3994
3995   /* 1st step: determine artwork set to be activated in descending order:
3996      --------------------------------------------------------------------
3997      1. setup artwork (when configured to override everything else)
3998      2. artwork set configured in "levelinfo.conf" of current level set
3999         (artwork in level directory will have priority when loading later)
4000      3. artwork in level directory (stored in artwork sub-directory)
4001      4. setup artwork (currently configured in setup menu) */
4002
4003   if (setup_override_artwork)
4004     artwork_current_identifier = setup_artwork_set;
4005   else if (leveldir_artwork_set != NULL)
4006     artwork_current_identifier = leveldir_artwork_set;
4007   else if (getTreeInfoFromIdentifier(artwork_first_node, leveldir_identifier))
4008     artwork_current_identifier = leveldir_identifier;
4009   else
4010     artwork_current_identifier = setup_artwork_set;
4011
4012
4013   /* 2nd step: check if it is really needed to reload artwork set
4014      ------------------------------------------------------------ */
4015
4016 #if 0
4017   if (type == ARTWORK_TYPE_GRAPHICS)
4018     printf("::: 0: '%s' ['%s', '%s'] ['%s' ('%s')]\n",
4019            artwork_new_identifier,
4020            ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4021            artwork_current_identifier,
4022            leveldir_current->graphics_set,
4023            leveldir_current->identifier);
4024 #endif
4025
4026   /* ---------- reload if level set and also artwork set has changed ------- */
4027   if (leveldir_current_identifier[type] != leveldir_identifier &&
4028       (last_has_level_artwork_set[type] || has_level_artwork_set))
4029     artwork_new_identifier = artwork_current_identifier;
4030
4031   leveldir_current_identifier[type] = leveldir_identifier;
4032   last_has_level_artwork_set[type] = has_level_artwork_set;
4033
4034 #if 0
4035   if (type == ARTWORK_TYPE_GRAPHICS)
4036     printf("::: 1: '%s'\n", artwork_new_identifier);
4037 #endif
4038
4039   /* ---------- reload if "override artwork" setting has changed ----------- */
4040   if (last_override_level_artwork[type] != setup_override_artwork)
4041     artwork_new_identifier = artwork_current_identifier;
4042
4043   last_override_level_artwork[type] = setup_override_artwork;
4044
4045 #if 0
4046   if (type == ARTWORK_TYPE_GRAPHICS)
4047     printf("::: 2: '%s'\n", artwork_new_identifier);
4048 #endif
4049
4050   /* ---------- reload if current artwork identifier has changed ----------- */
4051   if (strcmp(ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4052              artwork_current_identifier) != 0)
4053     artwork_new_identifier = artwork_current_identifier;
4054
4055   *(&(ARTWORK_CURRENT_IDENTIFIER(artwork, type))) = artwork_current_identifier;
4056
4057 #if 0
4058   if (type == ARTWORK_TYPE_GRAPHICS)
4059     printf("::: 3: '%s'\n", artwork_new_identifier);
4060 #endif
4061
4062   /* ---------- do not reload directly after starting ---------------------- */
4063   if (!initialized[type])
4064     artwork_new_identifier = NULL;
4065
4066   initialized[type] = TRUE;
4067
4068 #if 0
4069   if (type == ARTWORK_TYPE_GRAPHICS)
4070     printf("::: 4: '%s'\n", artwork_new_identifier);
4071 #endif
4072
4073 #if 0
4074   if (type == ARTWORK_TYPE_GRAPHICS)
4075     printf("CHECKING OLD/NEW GFX:\n- OLD: %s\n- NEW: %s ['%s', '%s'] ['%s']\n",
4076            artwork.gfx_current_identifier, artwork_current_identifier,
4077            artwork.gfx_current->identifier, leveldir_current->graphics_set,
4078            artwork_new_identifier);
4079 #endif
4080
4081   return artwork_new_identifier;
4082 }
4083
4084 void ReloadCustomArtwork(int force_reload)
4085 {
4086   char *gfx_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_GRAPHICS);
4087   char *snd_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_SOUNDS);
4088   char *mus_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_MUSIC);
4089   boolean force_reload_gfx = (force_reload & (1 << ARTWORK_TYPE_GRAPHICS));
4090   boolean force_reload_snd = (force_reload & (1 << ARTWORK_TYPE_SOUNDS));
4091   boolean force_reload_mus = (force_reload & (1 << ARTWORK_TYPE_MUSIC));
4092   boolean redraw_screen = FALSE;
4093
4094   if (gfx_new_identifier != NULL || force_reload_gfx)
4095   {
4096 #if 0
4097     printf("RELOADING GRAPHICS '%s' -> '%s' ['%s', '%s']\n",
4098            artwork.gfx_current_identifier,
4099            gfx_new_identifier,
4100            artwork.gfx_current->identifier,
4101            leveldir_current->graphics_set);
4102 #endif
4103
4104     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4105
4106     InitImages();
4107
4108 #if 0
4109     printf("... '%s'\n",
4110            leveldir_current->graphics_set);
4111 #endif
4112
4113     FreeTileClipmasks();
4114     InitTileClipmasks();
4115
4116     redraw_screen = TRUE;
4117   }
4118
4119   if (snd_new_identifier != NULL || force_reload_snd)
4120   {
4121     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4122
4123     InitSound(snd_new_identifier);
4124
4125     redraw_screen = TRUE;
4126   }
4127
4128   if (mus_new_identifier != NULL || force_reload_mus)
4129   {
4130     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4131
4132     InitMusic(mus_new_identifier);
4133
4134     redraw_screen = TRUE;
4135   }
4136
4137   if (redraw_screen)
4138   {
4139     InitGfxBackground();
4140
4141     /* force redraw of (open or closed) door graphics */
4142     SetDoorState(DOOR_OPEN_ALL);
4143     CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
4144   }
4145 }
4146
4147 void KeyboardAutoRepeatOffUnlessAutoplay()
4148 {
4149   if (global.autoplay_leveldir == NULL)
4150     KeyboardAutoRepeatOff();
4151 }
4152
4153
4154 /* ========================================================================= */
4155 /* OpenAll()                                                                 */
4156 /* ========================================================================= */
4157
4158 void OpenAll()
4159 {
4160   InitGlobal();         /* initialize some global variables */
4161
4162   if (options.execute_command)
4163     Execute_Command(options.execute_command);
4164
4165   if (options.serveronly)
4166   {
4167 #if defined(PLATFORM_UNIX)
4168     NetworkServer(options.server_port, options.serveronly);
4169 #else
4170     Error(ERR_WARN, "networking only supported in Unix version");
4171 #endif
4172     exit(0);    /* never reached */
4173   }
4174
4175   InitSetup();
4176
4177   InitPlayerInfo();
4178   InitArtworkInfo();            /* needed before loading gfx, sound & music */
4179   InitArtworkConfig();          /* needed before forking sound child process */
4180   InitMixer();
4181
4182   InitCounter();
4183
4184   InitRND(NEW_RANDOMIZE);
4185   InitSimpleRND(NEW_RANDOMIZE);
4186
4187   InitJoysticks();
4188
4189   InitVideoDisplay();
4190   InitVideoBuffer(&backbuffer, &window, WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH,
4191                   setup.fullscreen);
4192
4193   InitEventFilter(FilterMouseMotionEvents);
4194
4195   InitElementPropertiesStatic();
4196   InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
4197
4198   InitGfx();
4199
4200   InitLevelInfo();
4201   InitLevelArtworkInfo();
4202
4203   InitImages();                 /* needs to know current level directory */
4204   InitSound(NULL);              /* needs to know current level directory */
4205   InitMusic(NULL);              /* needs to know current level directory */
4206
4207   InitGfxBackground();
4208
4209   if (global.autoplay_leveldir)
4210   {
4211     AutoPlayTape();
4212     return;
4213   }
4214
4215   game_status = GAME_MODE_MAIN;
4216
4217   DrawMainMenu();
4218
4219   InitNetworkServer();
4220 }
4221
4222 void CloseAllAndExit(int exit_value)
4223 {
4224   StopSounds();
4225   FreeAllSounds();
4226   FreeAllMusic();
4227   CloseAudio();         /* called after freeing sounds (needed for SDL) */
4228
4229   FreeAllImages();
4230   FreeTileClipmasks();
4231
4232   CloseVideoDisplay();
4233   ClosePlatformDependentStuff();
4234
4235   exit(exit_value);
4236 }