src/init.c

   1 /***********************************************************
   2 * Rocks'n'Diamonds -- McDuffin Strikes Back!               *
   3 *----------------------------------------------------------*
   4 * (c) 1995-2002 Artsoft Entertainment                      *
   5 *               Holger Schemel                             *
   6 *               Detmolder Strasse 189                      *
   7 *               33604 Bielefeld                            *
   8 *               Germany                                    *
   9 *               e-mail: info@artsoft.org                   *
  10 *----------------------------------------------------------*
  11 * init.c                                                   *
  12 ***********************************************************/
  13
  14 #include "libgame/libgame.h"
  15
  16 #include "init.h"
  17 #include "events.h"
  18 #include "screens.h"
  19 #include "editor.h"
  20 #include "game.h"
  21 #include "tape.h"
  22 #include "tools.h"
  23 #include "files.h"
  24 #include "network.h"
  25 #include "netserv.h"
  26 #include "cartoons.h"
  27 #include "config.h"
  28
  29 #include "conf_e2g.c"   /* include auto-generated data structure definitions */
  30 #include "conf_esg.c"   /* include auto-generated data structure definitions */
  31 #include "conf_e2s.c"   /* include auto-generated data structure definitions */
  32 #include "conf_fnt.c"   /* include auto-generated data structure definitions */
  33 #include "conf_g2s.c"   /* include auto-generated data structure definitions */
  34 #include "conf_g2m.c"   /* include auto-generated data structure definitions */
  35
  36
  37 #define CONFIG_TOKEN_FONT_INITIAL               "font.initial"
  38
  39
  40 struct FontBitmapInfo font_initial[NUM_INITIAL_FONTS];
  41
  42
  43 static void InitTileClipmasks()
  44 {
  45 #if 0
  46 #if defined(TARGET_X11)
  47   XGCValues clip_gc_values;
  48   unsigned long clip_gc_valuemask;
  49
  50 #if defined(TARGET_X11_NATIVE)
  51
  52 #if 0
  53   GC copy_clipmask_gc;
  54
  55   static struct
  56   {
  57     int start;
  58     int count;
  59   }
  60   tile_needs_clipping[] =
  61   {
  62     { GFX_SPIELER1_UP, 4 },
  63     { GFX_SPIELER1_DOWN, 4 },
  64     { GFX_SPIELER1_LEFT, 4 },
  65     { GFX_SPIELER1_RIGHT, 4 },
  66     { GFX_SPIELER1_PUSH_LEFT, 4 },
  67     { GFX_SPIELER1_PUSH_RIGHT, 4 },
  68     { GFX_SPIELER2_UP, 4 },
  69     { GFX_SPIELER2_DOWN, 4 },
  70     { GFX_SPIELER2_LEFT, 4 },
  71     { GFX_SPIELER2_RIGHT, 4 },
  72     { GFX_SPIELER2_PUSH_LEFT, 4 },
  73     { GFX_SPIELER2_PUSH_RIGHT, 4 },
  74     { GFX_SPIELER3_UP, 4 },
  75     { GFX_SPIELER3_DOWN, 4 },
  76     { GFX_SPIELER3_LEFT, 4 },
  77     { GFX_SPIELER3_RIGHT, 4 },
  78     { GFX_SPIELER3_PUSH_LEFT, 4 },
  79     { GFX_SPIELER3_PUSH_RIGHT, 4 },
  80     { GFX_SPIELER4_UP, 4 },
  81     { GFX_SPIELER4_DOWN, 4 },
  82     { GFX_SPIELER4_LEFT, 4 },
  83     { GFX_SPIELER4_RIGHT, 4 },
  84     { GFX_SPIELER4_PUSH_LEFT, 4 },
  85     { GFX_SPIELER4_PUSH_RIGHT, 4 },
  86     { GFX_SP_MURPHY, 1 },
  87     { GFX_MURPHY_GO_LEFT, 3 },
  88     { GFX_MURPHY_GO_RIGHT, 3 },
  89     { GFX_MURPHY_SNAP_UP, 1 },
  90     { GFX_MURPHY_SNAP_DOWN, 1 },
  91     { GFX_MURPHY_SNAP_RIGHT, 1 },
  92     { GFX_MURPHY_SNAP_LEFT, 1 },
  93     { GFX_MURPHY_PUSH_RIGHT, 1 },
  94     { GFX_MURPHY_PUSH_LEFT, 1 },
  95     { GFX_GEBLUBBER, 4 },
  96     { GFX_DYNAMIT, 7 },
  97     { GFX_DYNABOMB, 4 },
  98     { GFX_EXPLOSION, 8 },
  99     { GFX_SOKOBAN_OBJEKT, 1 },
 100     { GFX_FUNKELN_BLAU, 3 },
 101     { GFX_FUNKELN_WEISS, 3 },
 102     { GFX2_SHIELD_PASSIVE, 3 },
 103     { GFX2_SHIELD_ACTIVE, 3 },
 104     { -1, 0 }
 105   };
 106 #endif
 107
 108 #endif /* TARGET_X11_NATIVE */
 109 #endif /* TARGET_X11 */
 110
 111   int i;
 112
 113   /* initialize pixmap array for special X11 tile clipping to Pixmap 'None' */
 114   for (i = 0; i < NUM_TILES; i++)
 115     tile_clipmask[i] = None;
 116
 117 #if defined(TARGET_X11)
 118   /* This stuff is needed because X11 (XSetClipOrigin(), to be precise) is
 119      often very slow when preparing a masked XCopyArea() for big Pixmaps.
 120      To prevent this, create small (tile-sized) mask Pixmaps which will then
 121      be set much faster with XSetClipOrigin() and speed things up a lot. */
 122
 123   clip_gc_values.graphics_exposures = False;
 124   clip_gc_valuemask = GCGraphicsExposures;
 125   tile_clip_gc = XCreateGC(display, window->drawable,
 126                            clip_gc_valuemask, &clip_gc_values);
 127
 128 #if 0
 129   for (i = 0; i < NUM_BITMAPS; i++)
 130   {
 131     if (pix[i]->clip_mask)
 132     {
 133       clip_gc_values.graphics_exposures = False;
 134       clip_gc_values.clip_mask = pix[i]->clip_mask;
 135       clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
 136       pix[i]->stored_clip_gc = XCreateGC(display, window->drawable,
 137                                          clip_gc_valuemask, &clip_gc_values);
 138     }
 139   }
 140 #endif
 141
 142 #if defined(TARGET_X11_NATIVE)
 143
 144 #if 0
 145   /* create graphic context structures needed for clipping */
 146   clip_gc_values.graphics_exposures = False;
 147   clip_gc_valuemask = GCGraphicsExposures;
 148   copy_clipmask_gc = XCreateGC(display, pix[PIX_BACK]->clip_mask,
 149                                clip_gc_valuemask, &clip_gc_values);
 150
 151   /* create only those clipping Pixmaps we really need */
 152   for (i = 0; tile_needs_clipping[i].start >= 0; i++)
 153   {
 154     int j;
 155
 156     for (j = 0; j < tile_needs_clipping[i].count; j++)
 157     {
 158       int tile = tile_needs_clipping[i].start + j;
 159       int graphic = tile;
 160       int src_x, src_y;
 161       Bitmap *src_bitmap;
 162       Pixmap src_pixmap;
 163
 164       getGraphicSource(graphic, &src_bitmap, &src_x, &src_y);
 165       src_pixmap = src_bitmap->clip_mask;
 166
 167       tile_clipmask[tile] = XCreatePixmap(display, window->drawable,
 168                                           TILEX, TILEY, 1);
 169
 170       XCopyArea(display, src_pixmap, tile_clipmask[tile], copy_clipmask_gc,
 171                 src_x, src_y, TILEX, TILEY, 0, 0);
 172     }
 173   }
 174
 175   XFreeGC(display, copy_clipmask_gc);
 176 #endif
 177
 178 #endif /* TARGET_X11_NATIVE */
 179 #endif /* TARGET_X11 */
 180 #endif
 181 }
 182
 183 void FreeTileClipmasks()
 184 {
 185 #if 0
 186 #if defined(TARGET_X11)
 187   int i;
 188
 189   for (i = 0; i < NUM_TILES; i++)
 190   {
 191     if (tile_clipmask[i] != None)
 192     {
 193       XFreePixmap(display, tile_clipmask[i]);
 194       tile_clipmask[i] = None;
 195     }
 196   }
 197
 198   if (tile_clip_gc)
 199     XFreeGC(display, tile_clip_gc);
 200   tile_clip_gc = None;
 201
 202 #if 0
 203   for (i = 0; i < NUM_BITMAPS; i++)
 204   {
 205     if (pix[i] != NULL && pix[i]->stored_clip_gc)
 206     {
 207       XFreeGC(display, pix[i]->stored_clip_gc);
 208       pix[i]->stored_clip_gc = None;
 209     }
 210   }
 211 #endif
 212
 213 #endif /* TARGET_X11 */
 214 #endif
 215 }
 216
 217 void FreeGadgets()
 218 {
 219   FreeLevelEditorGadgets();
 220   FreeGameButtons();
 221   FreeTapeButtons();
 222   FreeToolButtons();
 223   FreeScreenGadgets();
 224 }
 225
 226 void InitGadgets()
 227 {
 228   static boolean gadgets_initialized = FALSE;
 229
 230   if (gadgets_initialized)
 231     FreeGadgets();
 232
 233   CreateLevelEditorGadgets();
 234   CreateGameButtons();
 235   CreateTapeButtons();
 236   CreateToolButtons();
 237   CreateScreenGadgets();
 238
 239   gadgets_initialized = TRUE;
 240 }
 241
 242 void InitElementSmallImages()
 243 {
 244   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 245   int num_property_mappings = getImageListPropertyMappingSize();
 246   int i;
 247
 248   /* initialize normal images from static configuration */
 249   for (i = 0; element_to_graphic[i].element > -1; i++)
 250     CreateImageWithSmallImages(element_to_graphic[i].graphic);
 251
 252   /* initialize special images from static configuration */
 253   for (i = 0; element_to_special_graphic[i].element > -1; i++)
 254     CreateImageWithSmallImages(element_to_special_graphic[i].graphic);
 255
 256   /* initialize images from dynamic configuration */
 257   for (i = 0; i < num_property_mappings; i++)
 258     if (property_mapping[i].artwork_index < MAX_NUM_ELEMENTS)
 259       CreateImageWithSmallImages(property_mapping[i].artwork_index);
 260 }
 261
 262 static int getFontBitmapID(int font_nr)
 263 {
 264   int special = -1;
 265
 266   if (game_status >= GAME_MODE_MAIN && game_status <= GAME_MODE_PSEUDO_PREVIEW)
 267     special = game_status;
 268   else if (game_status == GAME_MODE_PSEUDO_TYPENAME)
 269     special = GFX_SPECIAL_ARG_MAIN;
 270   else if (game_status == GAME_MODE_PLAYING)
 271     special = GFX_SPECIAL_ARG_DOOR;
 272
 273   if (special != -1)
 274     return font_info[font_nr].special_bitmap_id[special];
 275   else
 276     return font_nr;
 277 }
 278
 279 void InitFontGraphicInfo()
 280 {
 281   static struct FontBitmapInfo *font_bitmap_info = NULL;
 282   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 283   int num_property_mappings = getImageListPropertyMappingSize();
 284   int num_font_bitmaps = NUM_FONTS;
 285   int i, j;
 286
 287   if (graphic_info == NULL)             /* still at startup phase */
 288   {
 289     InitFontInfo(font_initial, NUM_INITIAL_FONTS, getFontBitmapID);
 290
 291     return;
 292   }
 293
 294   /* ---------- initialize font graphic definitions ---------- */
 295
 296   /* always start with reliable default values (normal font graphics) */
 297 #if 1
 298   for (i = 0; i < NUM_FONTS; i++)
 299     font_info[i].graphic = IMG_FONT_INITIAL_1;
 300 #else
 301   for (i = 0; i < NUM_FONTS; i++)
 302     font_info[i].graphic = FONT_INITIAL_1;
 303 #endif
 304
 305   /* initialize normal font/graphic mapping from static configuration */
 306   for (i = 0; font_to_graphic[i].font_nr > -1; i++)
 307   {
 308     int font_nr = font_to_graphic[i].font_nr;
 309     int special = font_to_graphic[i].special;
 310     int graphic = font_to_graphic[i].graphic;
 311
 312     if (special != -1)
 313       continue;
 314
 315     font_info[font_nr].graphic = graphic;
 316   }
 317
 318   /* always start with reliable default values (special font graphics) */
 319   for (i = 0; i < NUM_FONTS; i++)
 320   {
 321     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 322     {
 323       font_info[i].special_graphic[j] = font_info[i].graphic;
 324       font_info[i].special_bitmap_id[j] = i;
 325     }
 326   }
 327
 328   /* initialize special font/graphic mapping from static configuration */
 329   for (i = 0; font_to_graphic[i].font_nr > -1; i++)
 330   {
 331     int font_nr = font_to_graphic[i].font_nr;
 332     int special = font_to_graphic[i].special;
 333     int graphic = font_to_graphic[i].graphic;
 334
 335     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 336     {
 337       font_info[font_nr].special_graphic[special] = graphic;
 338       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
 339       num_font_bitmaps++;
 340     }
 341   }
 342
 343   /* initialize special element/graphic mapping from dynamic configuration */
 344   for (i = 0; i < num_property_mappings; i++)
 345   {
 346     int font_nr = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
 347     int special = property_mapping[i].ext3_index;
 348     int graphic = property_mapping[i].artwork_index;
 349
 350     if (font_nr < 0)
 351       continue;
 352
 353     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 354     {
 355       font_info[font_nr].special_graphic[special] = graphic;
 356       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
 357       num_font_bitmaps++;
 358     }
 359   }
 360
 361   /* ---------- initialize font bitmap array ---------- */
 362
 363   if (font_bitmap_info != NULL)
 364     FreeFontInfo(font_bitmap_info);
 365
 366   font_bitmap_info =
 367     checked_calloc(num_font_bitmaps * sizeof(struct FontBitmapInfo));
 368
 369   /* ---------- initialize font bitmap definitions ---------- */
 370
 371   for (i = 0; i < NUM_FONTS; i++)
 372   {
 373     if (i < NUM_INITIAL_FONTS)
 374     {
 375       font_bitmap_info[i] = font_initial[i];
 376       continue;
 377     }
 378
 379     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 380     {
 381       int font_bitmap_id = font_info[i].special_bitmap_id[j];
 382       int graphic = font_info[i].special_graphic[j];
 383
 384       /* set 'graphic_info' for font entries, if uninitialized (guessed) */
 385       if (graphic_info[graphic].anim_frames < MIN_NUM_CHARS_PER_FONT)
 386       {
 387         graphic_info[graphic].anim_frames = DEFAULT_NUM_CHARS_PER_FONT;
 388         graphic_info[graphic].anim_frames_per_line= DEFAULT_NUM_CHARS_PER_LINE;
 389       }
 390
 391       /* copy font relevant information from graphics information */
 392       font_bitmap_info[font_bitmap_id].bitmap = graphic_info[graphic].bitmap;
 393       font_bitmap_info[font_bitmap_id].src_x  = graphic_info[graphic].src_x;
 394       font_bitmap_info[font_bitmap_id].src_y  = graphic_info[graphic].src_y;
 395       font_bitmap_info[font_bitmap_id].width  = graphic_info[graphic].width;
 396       font_bitmap_info[font_bitmap_id].height = graphic_info[graphic].height;
 397       font_bitmap_info[font_bitmap_id].draw_x = graphic_info[graphic].draw_x;
 398       font_bitmap_info[font_bitmap_id].draw_y = graphic_info[graphic].draw_y;
 399
 400       font_bitmap_info[font_bitmap_id].num_chars =
 401         graphic_info[graphic].anim_frames;
 402       font_bitmap_info[font_bitmap_id].num_chars_per_line =
 403         graphic_info[graphic].anim_frames_per_line;
 404     }
 405   }
 406
 407   InitFontInfo(font_bitmap_info, num_font_bitmaps, getFontBitmapID);
 408 }
 409
 410 void InitElementGraphicInfo()
 411 {
 412   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 413   int num_property_mappings = getImageListPropertyMappingSize();
 414   int i, act, dir;
 415
 416   if (graphic_info == NULL)             /* still at startup phase */
 417     return;
 418
 419   /* set values to -1 to identify later as "uninitialized" values */
 420   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 421   {
 422     for (act = 0; act < NUM_ACTIONS; act++)
 423     {
 424       element_info[i].graphic[act] = -1;
 425       element_info[i].crumbled[act] = -1;
 426
 427       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 428       {
 429         element_info[i].direction_graphic[act][dir] = -1;
 430         element_info[i].direction_crumbled[act][dir] = -1;
 431       }
 432     }
 433   }
 434
 435   /* initialize normal element/graphic mapping from static configuration */
 436   for (i = 0; element_to_graphic[i].element > -1; i++)
 437   {
 438     int element      = element_to_graphic[i].element;
 439     int action       = element_to_graphic[i].action;
 440     int direction    = element_to_graphic[i].direction;
 441     boolean crumbled = element_to_graphic[i].crumbled;
 442     int graphic      = element_to_graphic[i].graphic;
 443     int base_graphic = el2baseimg(element);
 444
 445     if (graphic_info[graphic].bitmap == NULL)
 446       continue;
 447
 448     if ((action > -1 || direction > -1 || crumbled == TRUE) &&
 449         base_graphic != -1)
 450     {
 451       boolean base_redefined = getImageListEntry(base_graphic)->redefined;
 452       boolean act_dir_redefined = getImageListEntry(graphic)->redefined;
 453
 454       /* if the base graphic ("emerald", for example) has been redefined,
 455          but not the action graphic ("emerald.falling", for example), do not
 456          use an existing (in this case considered obsolete) action graphic
 457          anymore, but use the automatically determined default graphic */
 458       if (base_redefined && !act_dir_redefined)
 459         continue;
 460     }
 461
 462     if (action < 0)
 463       action = ACTION_DEFAULT;
 464
 465     if (crumbled)
 466     {
 467       if (direction > -1)
 468         element_info[element].direction_crumbled[action][direction] = graphic;
 469       else
 470         element_info[element].crumbled[action] = graphic;
 471     }
 472     else
 473     {
 474       if (direction > -1)
 475         element_info[element].direction_graphic[action][direction] = graphic;
 476       else
 477         element_info[element].graphic[action] = graphic;
 478     }
 479   }
 480
 481   /* initialize normal element/graphic mapping from dynamic configuration */
 482   for (i = 0; i < num_property_mappings; i++)
 483   {
 484     int element   = property_mapping[i].base_index;
 485     int action    = property_mapping[i].ext1_index;
 486     int direction = property_mapping[i].ext2_index;
 487     int special   = property_mapping[i].ext3_index;
 488     int graphic   = property_mapping[i].artwork_index;
 489     boolean crumbled = FALSE;
 490
 491     if (special == GFX_SPECIAL_ARG_CRUMBLED)
 492     {
 493       special = -1;
 494       crumbled = TRUE;
 495     }
 496
 497     if (graphic_info[graphic].bitmap == NULL)
 498       continue;
 499
 500     if (element >= MAX_NUM_ELEMENTS || special != -1)
 501       continue;
 502
 503     if (action < 0)
 504       action = ACTION_DEFAULT;
 505
 506     if (crumbled)
 507     {
 508       if (direction < 0)
 509         for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 510           element_info[element].direction_crumbled[action][dir] = -1;
 511
 512       if (direction > -1)
 513         element_info[element].direction_crumbled[action][direction] = graphic;
 514       else
 515         element_info[element].crumbled[action] = graphic;
 516     }
 517     else
 518     {
 519       if (direction < 0)
 520         for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 521           element_info[element].direction_graphic[action][dir] = -1;
 522
 523       if (direction > -1)
 524         element_info[element].direction_graphic[action][direction] = graphic;
 525       else
 526         element_info[element].graphic[action] = graphic;
 527     }
 528   }
 529
 530   /* now copy all graphics that are defined to be cloned from other graphics */
 531   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 532   {
 533     int graphic = element_info[i].graphic[ACTION_DEFAULT];
 534     int crumbled_like, diggable_like;
 535
 536     if (graphic == -1)
 537       continue;
 538
 539     crumbled_like = graphic_info[graphic].crumbled_like;
 540     diggable_like = graphic_info[graphic].diggable_like;
 541
 542     if (crumbled_like != -1 && element_info[i].crumbled[ACTION_DEFAULT] == -1)
 543     {
 544       for (act = 0; act < NUM_ACTIONS; act++)
 545         element_info[i].crumbled[act] =
 546           element_info[crumbled_like].crumbled[act];
 547       for (act = 0; act < NUM_ACTIONS; act++)
 548         for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 549           element_info[i].direction_crumbled[act][dir] =
 550             element_info[crumbled_like].direction_crumbled[act][dir];
 551     }
 552
 553     if (diggable_like != -1 && element_info[i].graphic[ACTION_DIGGING] == -1)
 554     {
 555       element_info[i].graphic[ACTION_DIGGING] =
 556         element_info[diggable_like].graphic[ACTION_DIGGING];
 557       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 558         element_info[i].direction_graphic[ACTION_DIGGING][dir] =
 559           element_info[diggable_like].direction_graphic[ACTION_DIGGING][dir];
 560     }
 561   }
 562
 563 #if 1
 564   /* now set all undefined/invalid graphics to -1 to set to default after it */
 565   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 566   {
 567     for (act = 0; act < NUM_ACTIONS; act++)
 568     {
 569       int graphic;
 570
 571       graphic = element_info[i].graphic[act];
 572       if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 573         element_info[i].graphic[act] = -1;
 574
 575       graphic = element_info[i].crumbled[act];
 576       if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 577         element_info[i].crumbled[act] = -1;
 578
 579       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 580       {
 581         graphic = element_info[i].direction_graphic[act][dir];
 582         if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 583           element_info[i].direction_graphic[act][dir] = -1;
 584
 585         graphic = element_info[i].direction_crumbled[act][dir];
 586         if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 587           element_info[i].direction_crumbled[act][dir] = -1;
 588       }
 589     }
 590   }
 591 #endif
 592
 593   /* now set all '-1' values to element specific default values */
 594   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 595   {
 596     int default_graphic = element_info[i].graphic[ACTION_DEFAULT];
 597     int default_crumbled = element_info[i].crumbled[ACTION_DEFAULT];
 598     int default_direction_graphic[NUM_DIRECTIONS];
 599     int default_direction_crumbled[NUM_DIRECTIONS];
 600
 601     if (default_graphic == -1)
 602       default_graphic = IMG_UNKNOWN;
 603     if (default_crumbled == -1)
 604       default_crumbled = IMG_EMPTY;
 605
 606     for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 607     {
 608       default_direction_graphic[dir] =
 609         element_info[i].direction_graphic[ACTION_DEFAULT][dir];
 610       default_direction_crumbled[dir] =
 611         element_info[i].direction_crumbled[ACTION_DEFAULT][dir];
 612
 613       if (default_direction_graphic[dir] == -1)
 614         default_direction_graphic[dir] = default_graphic;
 615       if (default_direction_crumbled[dir] == -1)
 616         default_direction_crumbled[dir] = default_crumbled;
 617     }
 618
 619     for (act = 0; act < NUM_ACTIONS; act++)
 620     {
 621       boolean act_remove = ((IS_DIGGABLE(i)    && act == ACTION_DIGGING)  ||
 622                             (IS_SNAPPABLE(i)   && act == ACTION_SNAPPING) ||
 623                             (IS_COLLECTIBLE(i) && act == ACTION_COLLECTING));
 624       boolean act_turning = (act == ACTION_TURNING_FROM_LEFT ||
 625                              act == ACTION_TURNING_FROM_RIGHT ||
 626                              act == ACTION_TURNING_FROM_UP ||
 627                              act == ACTION_TURNING_FROM_DOWN);
 628
 629       /* generic default action graphic (defined by "[default]" directive) */
 630       int default_action_graphic = element_info[EL_DEFAULT].graphic[act];
 631       int default_action_crumbled = element_info[EL_DEFAULT].crumbled[act];
 632
 633       /* look for special default action graphic (classic game specific) */
 634       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].graphic[act] != -1)
 635         default_action_graphic = element_info[EL_BD_DEFAULT].graphic[act];
 636       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].graphic[act] != -1)
 637         default_action_graphic = element_info[EL_SP_DEFAULT].graphic[act];
 638       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].graphic[act] != -1)
 639         default_action_graphic = element_info[EL_SB_DEFAULT].graphic[act];
 640
 641       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].crumbled[act] != -1)
 642         default_action_crumbled = element_info[EL_BD_DEFAULT].crumbled[act];
 643       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].crumbled[act] != -1)
 644         default_action_crumbled = element_info[EL_SP_DEFAULT].crumbled[act];
 645       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].crumbled[act] != -1)
 646         default_action_crumbled = element_info[EL_SB_DEFAULT].crumbled[act];
 647
 648 #if 1
 649       /* !!! make this better !!! */
 650       if (i == EL_EMPTY_SPACE)
 651       {
 652         default_action_graphic = element_info[EL_DEFAULT].graphic[act];
 653         default_action_crumbled = element_info[EL_DEFAULT].crumbled[act];
 654       }
 655 #endif
 656
 657       if (default_action_graphic == -1)
 658         default_action_graphic = default_graphic;
 659       if (default_action_crumbled == -1)
 660         default_action_crumbled = default_crumbled;
 661
 662       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 663       {
 664         int default_action_direction_graphic = element_info[i].graphic[act];
 665         int default_action_direction_crumbled = element_info[i].crumbled[act];
 666
 667         /* no graphic for current action -- use default direction graphic */
 668         if (default_action_direction_graphic == -1)
 669           default_action_direction_graphic =
 670             (act_remove ? IMG_EMPTY :
 671              act_turning ?
 672              element_info[i].direction_graphic[ACTION_TURNING][dir] :
 673              default_direction_graphic[dir]);
 674         if (default_action_direction_crumbled == -1)
 675           default_action_direction_crumbled =
 676             (act_remove ? IMG_EMPTY :
 677              act_turning ?
 678              element_info[i].direction_crumbled[ACTION_TURNING][dir] :
 679              default_direction_crumbled[dir]);
 680
 681         if (element_info[i].direction_graphic[act][dir] == -1)
 682           element_info[i].direction_graphic[act][dir] =
 683             default_action_direction_graphic;
 684         if (element_info[i].direction_crumbled[act][dir] == -1)
 685           element_info[i].direction_crumbled[act][dir] =
 686             default_action_direction_crumbled;
 687       }
 688
 689       /* no graphic for this specific action -- use default action graphic */
 690       if (element_info[i].graphic[act] == -1)
 691         element_info[i].graphic[act] =
 692           (act_remove ? IMG_EMPTY :
 693            act_turning ? element_info[i].graphic[ACTION_TURNING] :
 694            default_action_graphic);
 695       if (element_info[i].crumbled[act] == -1)
 696         element_info[i].crumbled[act] =
 697           (act_remove ? IMG_EMPTY :
 698            act_turning ? element_info[i].crumbled[ACTION_TURNING] :
 699            default_action_crumbled);
 700     }
 701   }
 702
 703 #if 1
 704   /* set animation mode to "none" for each graphic with only 1 frame */
 705   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 706   {
 707     for (act = 0; act < NUM_ACTIONS; act++)
 708     {
 709       int graphic = element_info[i].graphic[act];
 710       int crumbled = element_info[i].crumbled[act];
 711
 712       if (graphic_info[graphic].anim_frames == 1)
 713         graphic_info[graphic].anim_mode = ANIM_NONE;
 714       if (graphic_info[crumbled].anim_frames == 1)
 715         graphic_info[crumbled].anim_mode = ANIM_NONE;
 716
 717       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
 718       {
 719         graphic = element_info[i].direction_graphic[act][dir];
 720         crumbled = element_info[i].direction_crumbled[act][dir];
 721
 722         if (graphic_info[graphic].anim_frames == 1)
 723           graphic_info[graphic].anim_mode = ANIM_NONE;
 724         if (graphic_info[crumbled].anim_frames == 1)
 725           graphic_info[crumbled].anim_mode = ANIM_NONE;
 726       }
 727     }
 728   }
 729 #endif
 730
 731 #if 0
 732 #if DEBUG
 733   if (options.verbose)
 734   {
 735     for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 736       if (element_info[i].graphic[ACTION_DEFAULT] == IMG_UNKNOWN &&
 737           i != EL_UNKNOWN)
 738         Error(ERR_RETURN, "warning: no graphic for element '%s' (%d)",
 739               element_info[i].token_name, i);
 740   }
 741 #endif
 742 #endif
 743 }
 744
 745 void InitElementSpecialGraphicInfo()
 746 {
 747   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 748   int num_property_mappings = getImageListPropertyMappingSize();
 749   int i, j;
 750
 751   /* always start with reliable default values */
 752   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 753     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 754       element_info[i].special_graphic[j] =
 755         element_info[i].graphic[ACTION_DEFAULT];
 756
 757   /* initialize special element/graphic mapping from static configuration */
 758   for (i = 0; element_to_special_graphic[i].element > -1; i++)
 759   {
 760     int element = element_to_special_graphic[i].element;
 761     int special = element_to_special_graphic[i].special;
 762     int graphic = element_to_special_graphic[i].graphic;
 763     int base_graphic = el2baseimg(element);
 764     boolean base_redefined = getImageListEntry(base_graphic)->redefined;
 765     boolean special_redefined = getImageListEntry(graphic)->redefined;
 766
 767     /* if the base graphic ("emerald", for example) has been redefined,
 768        but not the special graphic ("emerald.EDITOR", for example), do not
 769        use an existing (in this case considered obsolete) special graphic
 770        anymore, but use the automatically created (down-scaled) graphic */
 771     if (base_redefined && !special_redefined)
 772       continue;
 773
 774     element_info[element].special_graphic[special] = graphic;
 775   }
 776
 777   /* initialize special element/graphic mapping from dynamic configuration */
 778   for (i = 0; i < num_property_mappings; i++)
 779   {
 780     int element = property_mapping[i].base_index;
 781     int special = property_mapping[i].ext3_index;
 782     int graphic = property_mapping[i].artwork_index;
 783
 784     if (element >= MAX_NUM_ELEMENTS)
 785       continue;
 786
 787     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 788       element_info[element].special_graphic[special] = graphic;
 789   }
 790
 791 #if 1
 792   /* now set all undefined/invalid graphics to default */
 793   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 794     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 795       if (graphic_info[element_info[i].special_graphic[j]].bitmap == NULL)
 796         element_info[i].special_graphic[j] =
 797           element_info[i].graphic[ACTION_DEFAULT];
 798 #endif
 799 }
 800
 801 static int get_element_from_token(char *token)
 802 {
 803   int i;
 804
 805   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 806     if (strcmp(element_info[i].token_name, token) == 0)
 807       return i;
 808
 809   return -1;
 810 }
 811
 812 static void set_graphic_parameters(int graphic, char **parameter_raw)
 813 {
 814   Bitmap *src_bitmap = getBitmapFromImageID(graphic);
 815   int parameter[NUM_GFX_ARGS];
 816   int anim_frames_per_row = 1, anim_frames_per_col = 1;
 817   int anim_frames_per_line = 1;
 818   int i;
 819
 820   /* get integer values from string parameters */
 821   for (i = 0; i < NUM_GFX_ARGS; i++)
 822   {
 823     parameter[i] =
 824       get_parameter_value(image_config_suffix[i].token, parameter_raw[i],
 825                           image_config_suffix[i].type);
 826
 827     if (image_config_suffix[i].type == TYPE_TOKEN)
 828       parameter[i] = get_element_from_token(parameter_raw[i]);
 829   }
 830
 831   graphic_info[graphic].bitmap = src_bitmap;
 832
 833   /* start with reliable default values */
 834   graphic_info[graphic].src_x = 0;
 835   graphic_info[graphic].src_y = 0;
 836   graphic_info[graphic].width = TILEX;
 837   graphic_info[graphic].height = TILEY;
 838   graphic_info[graphic].offset_x = 0;   /* one or both of these values ... */
 839   graphic_info[graphic].offset_y = 0;   /* ... will be corrected later */
 840   graphic_info[graphic].crumbled_like = -1;     /* do not use clone element */
 841   graphic_info[graphic].diggable_like = -1;     /* do not use clone element */
 842   graphic_info[graphic].border_size = TILEX / 8;  /* "CRUMBLED" border size */
 843   graphic_info[graphic].anim_delay_fixed = 0;
 844   graphic_info[graphic].anim_delay_random = 0;
 845   graphic_info[graphic].post_delay_fixed = 0;
 846   graphic_info[graphic].post_delay_random = 0;
 847
 848   /* optional x and y tile position of animation frame sequence */
 849   if (parameter[GFX_ARG_XPOS] != ARG_UNDEFINED_VALUE)
 850     graphic_info[graphic].src_x = parameter[GFX_ARG_XPOS] * TILEX;
 851   if (parameter[GFX_ARG_YPOS] != ARG_UNDEFINED_VALUE)
 852     graphic_info[graphic].src_y = parameter[GFX_ARG_YPOS] * TILEY;
 853
 854   /* optional x and y pixel position of animation frame sequence */
 855   if (parameter[GFX_ARG_X] != ARG_UNDEFINED_VALUE)
 856     graphic_info[graphic].src_x = parameter[GFX_ARG_X];
 857   if (parameter[GFX_ARG_Y] != ARG_UNDEFINED_VALUE)
 858     graphic_info[graphic].src_y = parameter[GFX_ARG_Y];
 859
 860   /* optional width and height of each animation frame */
 861   if (parameter[GFX_ARG_WIDTH] != ARG_UNDEFINED_VALUE)
 862     graphic_info[graphic].width = parameter[GFX_ARG_WIDTH];
 863   if (parameter[GFX_ARG_HEIGHT] != ARG_UNDEFINED_VALUE)
 864     graphic_info[graphic].height = parameter[GFX_ARG_HEIGHT];
 865
 866   if (src_bitmap)
 867   {
 868     anim_frames_per_row = src_bitmap->width  / graphic_info[graphic].width;
 869     anim_frames_per_col = src_bitmap->height / graphic_info[graphic].height;
 870   }
 871
 872   /* correct x or y offset dependent of vertical or horizontal frame order */
 873   if (parameter[GFX_ARG_VERTICAL])      /* frames are ordered vertically */
 874   {
 875     graphic_info[graphic].offset_y =
 876       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
 877        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].height);
 878     anim_frames_per_line = anim_frames_per_col;
 879   }
 880   else                                  /* frames are ordered horizontally */
 881   {
 882     graphic_info[graphic].offset_x =
 883       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
 884        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].width);
 885     anim_frames_per_line = anim_frames_per_row;
 886   }
 887
 888   /* optionally, the x and y offset of frames can be specified directly */
 889   if (parameter[GFX_ARG_XOFFSET] != ARG_UNDEFINED_VALUE)
 890     graphic_info[graphic].offset_x = parameter[GFX_ARG_XOFFSET];
 891   if (parameter[GFX_ARG_YOFFSET] != ARG_UNDEFINED_VALUE)
 892     graphic_info[graphic].offset_y = parameter[GFX_ARG_YOFFSET];
 893
 894   /* automatically determine correct number of frames, if not defined */
 895   if (parameter[GFX_ARG_FRAMES] != ARG_UNDEFINED_VALUE)
 896     graphic_info[graphic].anim_frames = parameter[GFX_ARG_FRAMES];
 897   else if (parameter[GFX_ARG_XPOS] == 0 && !parameter[GFX_ARG_VERTICAL])
 898     graphic_info[graphic].anim_frames = anim_frames_per_row;
 899   else if (parameter[GFX_ARG_YPOS] == 0 && parameter[GFX_ARG_VERTICAL])
 900     graphic_info[graphic].anim_frames = anim_frames_per_col;
 901   else
 902     graphic_info[graphic].anim_frames = 1;
 903
 904   graphic_info[graphic].anim_frames_per_line =
 905     (parameter[GFX_ARG_FRAMES_PER_LINE] != ARG_UNDEFINED_VALUE ?
 906      parameter[GFX_ARG_FRAMES_PER_LINE] : anim_frames_per_line);
 907
 908   graphic_info[graphic].anim_delay = parameter[GFX_ARG_DELAY];
 909   if (graphic_info[graphic].anim_delay == 0)    /* delay must be at least 1 */
 910     graphic_info[graphic].anim_delay = 1;
 911
 912   graphic_info[graphic].anim_mode = parameter[GFX_ARG_ANIM_MODE];
 913 #if 0
 914   if (graphic_info[graphic].anim_frames == 1)
 915     graphic_info[graphic].anim_mode = ANIM_NONE;
 916 #endif
 917
 918   /* automatically determine correct start frame, if not defined */
 919   if (parameter[GFX_ARG_START_FRAME] == ARG_UNDEFINED_VALUE)
 920     graphic_info[graphic].anim_start_frame = 0;
 921   else if (graphic_info[graphic].anim_mode & ANIM_REVERSE)
 922     graphic_info[graphic].anim_start_frame =
 923       graphic_info[graphic].anim_frames - parameter[GFX_ARG_START_FRAME] - 1;
 924   else
 925     graphic_info[graphic].anim_start_frame = parameter[GFX_ARG_START_FRAME];
 926
 927   /* animation synchronized with global frame counter, not move position */
 928   graphic_info[graphic].anim_global_sync = parameter[GFX_ARG_GLOBAL_SYNC];
 929
 930   /* optional element for cloning crumble graphics */
 931   if (parameter[GFX_ARG_CRUMBLED_LIKE] != ARG_UNDEFINED_VALUE)
 932     graphic_info[graphic].crumbled_like = parameter[GFX_ARG_CRUMBLED_LIKE];
 933
 934   /* optional element for cloning digging graphics */
 935   if (parameter[GFX_ARG_DIGGABLE_LIKE] != ARG_UNDEFINED_VALUE)
 936     graphic_info[graphic].diggable_like = parameter[GFX_ARG_DIGGABLE_LIKE];
 937
 938   /* optional border size for "crumbling" diggable graphics */
 939   if (parameter[GFX_ARG_BORDER_SIZE] != ARG_UNDEFINED_VALUE)
 940     graphic_info[graphic].border_size = parameter[GFX_ARG_BORDER_SIZE];
 941
 942   /* this is only used for player "boring" and "sleeping" actions */
 943   if (parameter[GFX_ARG_ANIM_DELAY_FIXED] != ARG_UNDEFINED_VALUE)
 944     graphic_info[graphic].anim_delay_fixed =
 945       parameter[GFX_ARG_ANIM_DELAY_FIXED];
 946   if (parameter[GFX_ARG_ANIM_DELAY_RANDOM] != ARG_UNDEFINED_VALUE)
 947     graphic_info[graphic].anim_delay_random =
 948       parameter[GFX_ARG_ANIM_DELAY_RANDOM];
 949   if (parameter[GFX_ARG_POST_DELAY_FIXED] != ARG_UNDEFINED_VALUE)
 950     graphic_info[graphic].post_delay_fixed =
 951       parameter[GFX_ARG_POST_DELAY_FIXED];
 952   if (parameter[GFX_ARG_POST_DELAY_RANDOM] != ARG_UNDEFINED_VALUE)
 953     graphic_info[graphic].post_delay_random =
 954       parameter[GFX_ARG_POST_DELAY_RANDOM];
 955
 956   /* this is only used for toon animations */
 957   graphic_info[graphic].step_offset = parameter[GFX_ARG_STEP_OFFSET];
 958   graphic_info[graphic].step_delay  = parameter[GFX_ARG_STEP_DELAY];
 959
 960   /* this is only used for drawing font characters */
 961   graphic_info[graphic].draw_x = parameter[GFX_ARG_DRAW_XOFFSET];
 962   graphic_info[graphic].draw_y = parameter[GFX_ARG_DRAW_YOFFSET];
 963
 964   /* this is only used for drawing envelope graphics */
 965   graphic_info[graphic].draw_masked = parameter[GFX_ARG_DRAW_MASKED];
 966 }
 967
 968 static void InitGraphicInfo()
 969 {
 970   int fallback_graphic = IMG_CHAR_EXCLAM;
 971   struct FileInfo *fallback_image = getImageListEntry(fallback_graphic);
 972   Bitmap *fallback_bitmap = getBitmapFromImageID(fallback_graphic);
 973   int num_images = getImageListSize();
 974   int i;
 975
 976 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
 977   static boolean clipmasks_initialized = FALSE;
 978   Pixmap src_pixmap;
 979   XGCValues clip_gc_values;
 980   unsigned long clip_gc_valuemask;
 981   GC copy_clipmask_gc = None;
 982 #endif
 983
 984   checked_free(graphic_info);
 985
 986   graphic_info = checked_calloc(num_images * sizeof(struct GraphicInfo));
 987
 988 #if 0
 989   printf("::: graphic_info: %d entries\n", num_images);
 990 #endif
 991
 992 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
 993   if (clipmasks_initialized)
 994   {
 995     for (i = 0; i < num_images; i++)
 996     {
 997       if (graphic_info[i].clip_mask)
 998         XFreePixmap(display, graphic_info[i].clip_mask);
 999       if (graphic_info[i].clip_gc)
1000         XFreeGC(display, graphic_info[i].clip_gc);
1001
1002       graphic_info[i].clip_mask = None;
1003       graphic_info[i].clip_gc = None;
1004     }
1005   }
1006 #endif
1007
1008   for (i = 0; i < num_images; i++)
1009   {
1010     struct FileInfo *image = getImageListEntry(i);
1011     Bitmap *src_bitmap;
1012     int src_x, src_y;
1013     int first_frame, last_frame;
1014
1015 #if 0
1016     printf("::: image: '%s' [%d]\n", image->token, i);
1017 #endif
1018
1019 #if 0
1020     printf("::: image # %d: '%s' ['%s']\n",
1021            i, image->token,
1022            getTokenFromImageID(i));
1023 #endif
1024
1025     set_graphic_parameters(i, image->parameter);
1026
1027     /* now check if no animation frames are outside of the loaded image */
1028
1029     if (graphic_info[i].bitmap == NULL)
1030       continue;         /* skip check for optional images that are undefined */
1031
1032     first_frame = 0;
1033     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
1034     if (src_x < 0 || src_y < 0 ||
1035         src_x + TILEX > src_bitmap->width ||
1036         src_y + TILEY > src_bitmap->height)
1037     {
1038       Error(ERR_RETURN_LINE, "-");
1039       Error(ERR_RETURN, "warning: error found in config file:");
1040       Error(ERR_RETURN, "- config file: '%s'",
1041             getImageConfigFilename());
1042       Error(ERR_RETURN, "- config token: '%s'",
1043             getTokenFromImageID(i));
1044       Error(ERR_RETURN, "- image file: '%s'",
1045             src_bitmap->source_filename);
1046       Error(ERR_RETURN,
1047             "error: first animation frame out of bounds (%d, %d)",
1048             src_x, src_y);
1049       Error(ERR_RETURN, "custom graphic rejected for this element/action");
1050
1051       if (i == fallback_graphic)
1052         Error(ERR_EXIT, "fatal error: no fallback graphic available");
1053
1054       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1055       Error(ERR_RETURN_LINE, "-");
1056
1057       set_graphic_parameters(i, fallback_image->default_parameter);
1058       graphic_info[i].bitmap = fallback_bitmap;
1059     }
1060
1061     last_frame = graphic_info[i].anim_frames - 1;
1062     getGraphicSource(i, last_frame, &src_bitmap, &src_x, &src_y);
1063     if (src_x < 0 || src_y < 0 ||
1064         src_x + TILEX > src_bitmap->width ||
1065         src_y + TILEY > src_bitmap->height)
1066     {
1067       Error(ERR_RETURN_LINE, "-");
1068       Error(ERR_RETURN, "warning: error found in config file:");
1069       Error(ERR_RETURN, "- config file: '%s'",
1070             getImageConfigFilename());
1071       Error(ERR_RETURN, "- config token: '%s'",
1072             getTokenFromImageID(i));
1073       Error(ERR_RETURN, "- image file: '%s'",
1074             src_bitmap->source_filename);
1075       Error(ERR_RETURN,
1076             "error: last animation frame (%d) out of bounds (%d, %d)",
1077             last_frame, src_x, src_y);
1078       Error(ERR_RETURN, "custom graphic rejected for this element/action");
1079
1080       if (i == fallback_graphic)
1081         Error(ERR_EXIT, "fatal error: no fallback graphic available");
1082
1083       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1084       Error(ERR_RETURN_LINE, "-");
1085
1086       set_graphic_parameters(i, fallback_image->default_parameter);
1087       graphic_info[i].bitmap = fallback_bitmap;
1088     }
1089
1090 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1091     /* currently we need only a tile clip mask from the first frame */
1092     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
1093
1094     if (copy_clipmask_gc == None)
1095     {
1096       clip_gc_values.graphics_exposures = False;
1097       clip_gc_valuemask = GCGraphicsExposures;
1098       copy_clipmask_gc = XCreateGC(display, src_bitmap->clip_mask,
1099                                    clip_gc_valuemask, &clip_gc_values);
1100     }
1101
1102     graphic_info[i].clip_mask =
1103       XCreatePixmap(display, window->drawable, TILEX, TILEY, 1);
1104
1105     src_pixmap = src_bitmap->clip_mask;
1106     XCopyArea(display, src_pixmap, graphic_info[i].clip_mask,
1107               copy_clipmask_gc, src_x, src_y, TILEX, TILEY, 0, 0);
1108
1109     clip_gc_values.graphics_exposures = False;
1110     clip_gc_values.clip_mask = graphic_info[i].clip_mask;
1111     clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
1112
1113     graphic_info[i].clip_gc =
1114       XCreateGC(display, window->drawable, clip_gc_valuemask, &clip_gc_values);
1115 #endif
1116   }
1117
1118 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1119   if (copy_clipmask_gc)
1120     XFreeGC(display, copy_clipmask_gc);
1121
1122   clipmasks_initialized = TRUE;
1123 #endif
1124 }
1125
1126 static void InitElementSoundInfo()
1127 {
1128   struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
1129   int num_property_mappings = getSoundListPropertyMappingSize();
1130   int i, j, act;
1131
1132   /* set values to -1 to identify later as "uninitialized" values */
1133   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1134     for (act = 0; act < NUM_ACTIONS; act++)
1135       element_info[i].sound[act] = -1;
1136
1137   /* initialize element/sound mapping from static configuration */
1138   for (i = 0; element_to_sound[i].element > -1; i++)
1139   {
1140     int element      = element_to_sound[i].element;
1141     int action       = element_to_sound[i].action;
1142     int sound        = element_to_sound[i].sound;
1143     boolean is_class = element_to_sound[i].is_class;
1144
1145     if (action < 0)
1146       action = ACTION_DEFAULT;
1147
1148     if (!is_class)
1149       element_info[element].sound[action] = sound;
1150     else
1151       for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1152         if (strcmp(element_info[j].class_name,
1153                    element_info[element].class_name) == 0)
1154           element_info[j].sound[action] = sound;
1155   }
1156
1157   /* initialize element class/sound mapping from dynamic configuration */
1158   for (i = 0; i < num_property_mappings; i++)
1159   {
1160     int element_class = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
1161     int action        = property_mapping[i].ext1_index;
1162     int sound         = property_mapping[i].artwork_index;
1163
1164     if (element_class < 0 || element_class >= MAX_NUM_ELEMENTS)
1165       continue;
1166
1167     if (action < 0)
1168       action = ACTION_DEFAULT;
1169
1170     for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1171       if (strcmp(element_info[j].class_name,
1172                  element_info[element_class].class_name) == 0)
1173         element_info[j].sound[action] = sound;
1174   }
1175
1176   /* initialize element/sound mapping from dynamic configuration */
1177   for (i = 0; i < num_property_mappings; i++)
1178   {
1179     int element = property_mapping[i].base_index;
1180     int action  = property_mapping[i].ext1_index;
1181     int sound   = property_mapping[i].artwork_index;
1182
1183     if (element >= MAX_NUM_ELEMENTS)
1184       continue;
1185
1186     if (action < 0)
1187       action = ACTION_DEFAULT;
1188
1189     element_info[element].sound[action] = sound;
1190   }
1191
1192   /* now set all '-1' values to element specific default values */
1193   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1194   {
1195     for (act = 0; act < NUM_ACTIONS; act++)
1196     {
1197       /* generic default action sound (defined by "[default]" directive) */
1198       int default_action_sound = element_info[EL_DEFAULT].sound[act];
1199
1200       /* look for special default action sound (classic game specific) */
1201       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].sound[act] != -1)
1202         default_action_sound = element_info[EL_BD_DEFAULT].sound[act];
1203       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].sound[act] != -1)
1204         default_action_sound = element_info[EL_SP_DEFAULT].sound[act];
1205       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].sound[act] != -1)
1206         default_action_sound = element_info[EL_SB_DEFAULT].sound[act];
1207
1208       /* !!! there's no such thing as a "default action sound" !!! */
1209 #if 0
1210       /* look for element specific default sound (independent from action) */
1211       if (element_info[i].sound[ACTION_DEFAULT] != -1)
1212         default_action_sound = element_info[i].sound[ACTION_DEFAULT];
1213 #endif
1214
1215       /* no sound for this specific action -- use default action sound */
1216       if (element_info[i].sound[act] == -1)
1217         element_info[i].sound[act] = default_action_sound;
1218     }
1219   }
1220 }
1221
1222 static void InitGameModeSoundInfo()
1223 {
1224   int i;
1225
1226   /* set values to -1 to identify later as "uninitialized" values */
1227   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1228     menu.sound[i] = -1;
1229
1230   /* initialize gamemode/sound mapping from static configuration */
1231   for (i = 0; gamemode_to_sound[i].sound > -1; i++)
1232   {
1233     int gamemode = gamemode_to_sound[i].gamemode;
1234     int sound    = gamemode_to_sound[i].sound;
1235
1236     if (gamemode < 0)
1237       gamemode = GAME_MODE_DEFAULT;
1238
1239     menu.sound[gamemode] = sound;
1240   }
1241
1242   /* now set all '-1' values to levelset specific default values */
1243   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1244     if (menu.sound[i] == -1)
1245       menu.sound[i] = menu.sound[GAME_MODE_DEFAULT];
1246
1247 #if 0
1248   /* TEST ONLY */
1249   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1250     if (menu.sound[i] != -1)
1251       printf("::: menu.sound[%d] == %d\n", i, menu.sound[i]);
1252 #endif
1253 }
1254
1255 static void set_sound_parameters(int sound, char **parameter_raw)
1256 {
1257   int parameter[NUM_SND_ARGS];
1258   int i;
1259
1260   /* get integer values from string parameters */
1261   for (i = 0; i < NUM_SND_ARGS; i++)
1262     parameter[i] =
1263       get_parameter_value(sound_config_suffix[i].token, parameter_raw[i],
1264                           sound_config_suffix[i].type);
1265
1266   /* explicit loop mode setting in configuration overrides default value */
1267   if (parameter[SND_ARG_MODE_LOOP] != ARG_UNDEFINED_VALUE)
1268     sound_info[sound].loop = parameter[SND_ARG_MODE_LOOP];
1269 }
1270
1271 static void InitSoundInfo()
1272 {
1273 #if 0
1274   struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
1275   int num_property_mappings = getSoundListPropertyMappingSize();
1276 #endif
1277   int *sound_effect_properties;
1278   int num_sounds = getSoundListSize();
1279   int i, j;
1280
1281   checked_free(sound_info);
1282
1283   sound_effect_properties = checked_calloc(num_sounds * sizeof(int));
1284   sound_info = checked_calloc(num_sounds * sizeof(struct SoundInfo));
1285
1286   /* initialize sound effect for all elements to "no sound" */
1287   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1288     for (j = 0; j < NUM_ACTIONS; j++)
1289       element_info[i].sound[j] = SND_UNDEFINED;
1290
1291   for (i = 0; i < num_sounds; i++)
1292   {
1293     struct FileInfo *sound = getSoundListEntry(i);
1294     int len_effect_text = strlen(sound->token);
1295
1296     sound_effect_properties[i] = ACTION_OTHER;
1297     sound_info[i].loop = FALSE;         /* default: play sound only once */
1298
1299 #if 0
1300     printf("::: sound %d: '%s'\n", i, sound->token);
1301 #endif
1302
1303     /* determine all loop sounds and identify certain sound classes */
1304
1305     for (j = 0; element_action_info[j].suffix; j++)
1306     {
1307       int len_action_text = strlen(element_action_info[j].suffix);
1308
1309       if (len_action_text < len_effect_text &&
1310           strcmp(&sound->token[len_effect_text - len_action_text],
1311                  element_action_info[j].suffix) == 0)
1312       {
1313         sound_effect_properties[i] = element_action_info[j].value;
1314         sound_info[i].loop = element_action_info[j].is_loop_sound;
1315
1316         break;
1317       }
1318     }
1319
1320 #if 0
1321     if (strcmp(sound->token, "custom_42") == 0)
1322       printf("::: '%s' -> %d\n", sound->token, sound_info[i].loop);
1323 #endif
1324
1325     /* associate elements and some selected sound actions */
1326
1327     for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1328     {
1329       if (element_info[j].class_name)
1330       {
1331         int len_class_text = strlen(element_info[j].class_name);
1332
1333         if (len_class_text + 1 < len_effect_text &&
1334             strncmp(sound->token,
1335                     element_info[j].class_name, len_class_text) == 0 &&
1336             sound->token[len_class_text] == '.')
1337         {
1338           int sound_action_value = sound_effect_properties[i];
1339
1340           element_info[j].sound[sound_action_value] = i;
1341         }
1342       }
1343     }
1344
1345     set_sound_parameters(i, sound->parameter);
1346   }
1347
1348   free(sound_effect_properties);
1349
1350 #if 0
1351   /* !!! now handled in InitElementSoundInfo() !!! */
1352   /* initialize element/sound mapping from dynamic configuration */
1353   for (i = 0; i < num_property_mappings; i++)
1354   {
1355     int element   = property_mapping[i].base_index;
1356     int action    = property_mapping[i].ext1_index;
1357     int sound     = property_mapping[i].artwork_index;
1358
1359     if (action < 0)
1360       action = ACTION_DEFAULT;
1361
1362     printf("::: %d: %d, %d, %d ['%s']\n",
1363            i, element, action, sound, element_info[element].token_name);
1364
1365     element_info[element].sound[action] = sound;
1366   }
1367 #endif
1368
1369 #if 0
1370   /* TEST ONLY */
1371   {
1372     int element = EL_CUSTOM_11;
1373     int j = 0;
1374
1375     while (element_action_info[j].suffix)
1376     {
1377       printf("element %d, sound action '%s'  == %d\n",
1378              element, element_action_info[j].suffix,
1379              element_info[element].sound[j]);
1380       j++;
1381     }
1382   }
1383
1384   PlaySoundLevelElementAction(0,0, EL_CUSTOM_11, ACTION_PUSHING);
1385 #endif
1386
1387 #if 0
1388   /* TEST ONLY */
1389   {
1390     int element = EL_SAND;
1391     int sound_action = ACTION_DIGGING;
1392     int j = 0;
1393
1394     while (element_action_info[j].suffix)
1395     {
1396       if (element_action_info[j].value == sound_action)
1397         printf("element %d, sound action '%s'  == %d\n",
1398                element, element_action_info[j].suffix,
1399                element_info[element].sound[sound_action]);
1400       j++;
1401     }
1402   }
1403 #endif
1404 }
1405
1406 static void InitGameModeMusicInfo()
1407 {
1408   struct PropertyMapping *property_mapping = getMusicListPropertyMapping();
1409   int num_property_mappings = getMusicListPropertyMappingSize();
1410   int default_levelset_music = -1;
1411   int i;
1412
1413   /* set values to -1 to identify later as "uninitialized" values */
1414   for (i = 0; i < MAX_LEVELS; i++)
1415     levelset.music[i] = -1;
1416   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1417     menu.music[i] = -1;
1418
1419   /* initialize gamemode/music mapping from static configuration */
1420   for (i = 0; gamemode_to_music[i].music > -1; i++)
1421   {
1422     int gamemode = gamemode_to_music[i].gamemode;
1423     int music    = gamemode_to_music[i].music;
1424
1425 #if 0
1426     printf("::: gamemode == %d, music == %d\n", gamemode, music);
1427 #endif
1428
1429     if (gamemode < 0)
1430       gamemode = GAME_MODE_DEFAULT;
1431
1432     menu.music[gamemode] = music;
1433   }
1434
1435   /* initialize gamemode/music mapping from dynamic configuration */
1436   for (i = 0; i < num_property_mappings; i++)
1437   {
1438     int prefix   = property_mapping[i].base_index;
1439     int gamemode = property_mapping[i].ext1_index;
1440     int level    = property_mapping[i].ext2_index;
1441     int music    = property_mapping[i].artwork_index;
1442
1443 #if 0
1444     printf("::: prefix == %d, gamemode == %d, level == %d, music == %d\n",
1445            prefix, gamemode, level, music);
1446 #endif
1447
1448     if (prefix < 0 || prefix >= NUM_MUSIC_PREFIXES)
1449       continue;
1450
1451     if (gamemode < 0)
1452       gamemode = GAME_MODE_DEFAULT;
1453
1454     /* level specific music only allowed for in-game music */
1455     if (level != -1 && gamemode == GAME_MODE_DEFAULT)
1456       gamemode = GAME_MODE_PLAYING;
1457
1458     if (level == -1)
1459     {
1460       level = 0;
1461       default_levelset_music = music;
1462     }
1463
1464     if (gamemode == GAME_MODE_PLAYING || gamemode == GAME_MODE_DEFAULT)
1465       levelset.music[level] = music;
1466     if (gamemode != GAME_MODE_PLAYING)
1467       menu.music[gamemode] = music;
1468   }
1469
1470   /* now set all '-1' values to menu specific default values */
1471   /* (undefined values of "levelset.music[]" might stay at "-1" to
1472      allow dynamic selection of music files from music directory!) */
1473   for (i = 0; i < MAX_LEVELS; i++)
1474     if (levelset.music[i] == -1)
1475       levelset.music[i] = default_levelset_music;
1476   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1477     if (menu.music[i] == -1)
1478       menu.music[i] = menu.music[GAME_MODE_DEFAULT];
1479
1480 #if 0
1481   /* TEST ONLY */
1482   for (i = 0; i < MAX_LEVELS; i++)
1483     if (levelset.music[i] != -1)
1484       printf("::: levelset.music[%d] == %d\n", i, levelset.music[i]);
1485   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1486     if (menu.music[i] != -1)
1487       printf("::: menu.music[%d] == %d\n", i, menu.music[i]);
1488 #endif
1489 }
1490
1491 static void set_music_parameters(int music, char **parameter_raw)
1492 {
1493   int parameter[NUM_MUS_ARGS];
1494   int i;
1495
1496   /* get integer values from string parameters */
1497   for (i = 0; i < NUM_MUS_ARGS; i++)
1498     parameter[i] =
1499       get_parameter_value(music_config_suffix[i].token, parameter_raw[i],
1500                           music_config_suffix[i].type);
1501
1502   /* explicit loop mode setting in configuration overrides default value */
1503   if (parameter[MUS_ARG_MODE_LOOP] != ARG_UNDEFINED_VALUE)
1504     music_info[music].loop = parameter[MUS_ARG_MODE_LOOP];
1505 }
1506
1507 static void InitMusicInfo()
1508 {
1509   int num_music = getMusicListSize();
1510   int i, j;
1511
1512   checked_free(music_info);
1513
1514   music_info = checked_calloc(num_music * sizeof(struct MusicInfo));
1515
1516   for (i = 0; i < num_music; i++)
1517   {
1518     struct FileInfo *music = getMusicListEntry(i);
1519     int len_music_text = strlen(music->token);
1520
1521     music_info[i].loop = TRUE;          /* default: play music in loop mode */
1522
1523     /* determine all loop music */
1524
1525     for (j = 0; music_prefix_info[j].prefix; j++)
1526     {
1527       int len_prefix_text = strlen(music_prefix_info[j].prefix);
1528
1529       if (len_prefix_text < len_music_text &&
1530           strncmp(music->token,
1531                   music_prefix_info[j].prefix, len_prefix_text) == 0)
1532       {
1533         music_info[i].loop = music_prefix_info[j].is_loop_music;
1534
1535         break;
1536       }
1537     }
1538
1539     set_music_parameters(i, music->parameter);
1540   }
1541 }
1542
1543 static void ReinitializeGraphics()
1544 {
1545   InitGraphicInfo();                    /* graphic properties mapping */
1546   InitElementGraphicInfo();             /* element game graphic mapping */
1547   InitElementSpecialGraphicInfo();      /* element special graphic mapping */
1548
1549   InitElementSmallImages();             /* create editor and preview images */
1550   InitFontGraphicInfo();                /* initialize text drawing functions */
1551
1552   SetMainBackgroundImage(IMG_BACKGROUND);
1553   SetDoorBackgroundImage(IMG_BACKGROUND_DOOR);
1554
1555   InitGadgets();
1556   InitToons();
1557 }
1558
1559 static void ReinitializeSounds()
1560 {
1561   InitSoundInfo();              /* sound properties mapping */
1562   InitElementSoundInfo();       /* element game sound mapping */
1563   InitGameModeSoundInfo();      /* game mode sound mapping */
1564
1565   InitPlayLevelSound();         /* internal game sound settings */
1566 }
1567
1568 static void ReinitializeMusic()
1569 {
1570   InitMusicInfo();              /* music properties mapping */
1571   InitGameModeMusicInfo();      /* game mode music mapping */
1572 }
1573
1574 static int get_special_property_bit(int element, int property_bit_nr)
1575 {
1576   struct PropertyBitInfo
1577   {
1578     int element;
1579     int bit_nr;
1580   };
1581
1582   static struct PropertyBitInfo pb_can_move_into_acid[] =
1583   {
1584     /* the player may be able fall into acid when gravity is activated */
1585     { EL_PLAYER_1,              0       },
1586     { EL_PLAYER_2,              0       },
1587     { EL_PLAYER_3,              0       },
1588     { EL_PLAYER_4,              0       },
1589     { EL_SP_MURPHY,             0       },
1590     { EL_SOKOBAN_FIELD_PLAYER,  0       },
1591
1592     /* all element that can move may be able to also move into acid */
1593     { EL_BUG,                   1       },
1594     { EL_BUG_LEFT,              1       },
1595     { EL_BUG_RIGHT,             1       },
1596     { EL_BUG_UP,                1       },
1597     { EL_BUG_DOWN,              1       },
1598     { EL_SPACESHIP,             2       },
1599     { EL_SPACESHIP_LEFT,        2       },
1600     { EL_SPACESHIP_RIGHT,       2       },
1601     { EL_SPACESHIP_UP,          2       },
1602     { EL_SPACESHIP_DOWN,        2       },
1603     { EL_BD_BUTTERFLY,          3       },
1604     { EL_BD_BUTTERFLY_LEFT,     3       },
1605     { EL_BD_BUTTERFLY_RIGHT,    3       },
1606     { EL_BD_BUTTERFLY_UP,       3       },
1607     { EL_BD_BUTTERFLY_DOWN,     3       },
1608     { EL_BD_FIREFLY,            4       },
1609     { EL_BD_FIREFLY_LEFT,       4       },
1610     { EL_BD_FIREFLY_RIGHT,      4       },
1611     { EL_BD_FIREFLY_UP,         4       },
1612     { EL_BD_FIREFLY_DOWN,       4       },
1613     { EL_YAMYAM,                5       },
1614     { EL_DARK_YAMYAM,           6       },
1615     { EL_ROBOT,                 7       },
1616     { EL_PACMAN,                8       },
1617     { EL_PACMAN_LEFT,           8       },
1618     { EL_PACMAN_RIGHT,          8       },
1619     { EL_PACMAN_UP,             8       },
1620     { EL_PACMAN_DOWN,           8       },
1621     { EL_MOLE,                  9       },
1622     { EL_MOLE_LEFT,             9       },
1623     { EL_MOLE_RIGHT,            9       },
1624     { EL_MOLE_UP,               9       },
1625     { EL_MOLE_DOWN,             9       },
1626     { EL_PENGUIN,               10      },
1627     { EL_PIG,                   11      },
1628     { EL_DRAGON,                12      },
1629     { EL_SATELLITE,             13      },
1630     { EL_SP_SNIKSNAK,           14      },
1631     { EL_SP_ELECTRON,           15      },
1632     { EL_BALLOON,               16      },
1633     { EL_SPRING,                17      },
1634
1635     { -1,                       -1      },
1636   };
1637
1638   static struct PropertyBitInfo pb_dont_collide_with[] =
1639   {
1640     { EL_SP_SNIKSNAK,           0       },
1641     { EL_SP_ELECTRON,           1       },
1642
1643     { -1,                       -1      },
1644   };
1645
1646   static struct
1647   {
1648     int bit_nr;
1649     struct PropertyBitInfo *pb_info;
1650   } pb_definition[] =
1651   {
1652     { EP_CAN_MOVE_INTO_ACID,    pb_can_move_into_acid   },
1653     { EP_DONT_COLLIDE_WITH,     pb_dont_collide_with    },
1654
1655     { -1,                       NULL                    },
1656   };
1657
1658   struct PropertyBitInfo *pb_info = NULL;
1659   int i;
1660
1661   for (i = 0; pb_definition[i].bit_nr != -1; i++)
1662     if (pb_definition[i].bit_nr == property_bit_nr)
1663       pb_info = pb_definition[i].pb_info;
1664
1665   if (pb_info == NULL)
1666     return -1;
1667
1668   for (i = 0; pb_info[i].element != -1; i++)
1669     if (pb_info[i].element == element)
1670       return pb_info[i].bit_nr;
1671
1672   return -1;
1673 }
1674
1675 #if 1
1676 void setBitfieldProperty(int *bitfield, int property_bit_nr, int element,
1677                          boolean property_value)
1678 {
1679   int bit_nr = get_special_property_bit(element, property_bit_nr);
1680
1681   if (bit_nr > -1)
1682   {
1683     if (property_value)
1684       *bitfield |=  (1 << bit_nr);
1685     else
1686       *bitfield &= ~(1 << bit_nr);
1687   }
1688 }
1689
1690 boolean getBitfieldProperty(int *bitfield, int property_bit_nr, int element)
1691 {
1692   int bit_nr = get_special_property_bit(element, property_bit_nr);
1693
1694   if (bit_nr > -1)
1695     return ((*bitfield & (1 << bit_nr)) != 0);
1696
1697   return FALSE;
1698 }
1699
1700 #else
1701
1702 void setMoveIntoAcidProperty(struct LevelInfo *level, int element, boolean set)
1703 {
1704   int bit_nr = get_special_property_bit(element, EP_CAN_MOVE_INTO_ACID);
1705
1706   if (bit_nr > -1)
1707   {
1708     level->can_move_into_acid_bits &= ~(1 << bit_nr);
1709
1710     if (set)
1711       level->can_move_into_acid_bits |= (1 << bit_nr);
1712   }
1713 }
1714
1715 boolean getMoveIntoAcidProperty(struct LevelInfo *level, int element)
1716 {
1717   int bit_nr = get_special_property_bit(element, EP_CAN_MOVE_INTO_ACID);
1718
1719   if (bit_nr > -1)
1720     return ((level->can_move_into_acid_bits & (1 << bit_nr)) != 0);
1721
1722   return FALSE;
1723 }
1724 #endif
1725
1726 void InitElementPropertiesStatic()
1727 {
1728   static int ep_diggable[] =
1729   {
1730     EL_SAND,
1731     EL_SP_BASE,
1732     EL_SP_BUGGY_BASE,
1733     EL_SP_BUGGY_BASE_ACTIVATING,
1734     EL_TRAP,
1735     EL_INVISIBLE_SAND,
1736     EL_INVISIBLE_SAND_ACTIVE,
1737
1738     /* !!! currently not diggable, but handled by 'ep_dont_run_into' !!! */
1739     /* (if amoeba can grow into anything diggable, maybe keep these out) */
1740 #if 0
1741     EL_LANDMINE,
1742     EL_TRAP_ACTIVE,
1743     EL_SP_BUGGY_BASE_ACTIVE,
1744 #endif
1745     -1
1746   };
1747
1748   static int ep_collectible_only[] =
1749   {
1750     EL_BD_DIAMOND,
1751     EL_EMERALD,
1752     EL_DIAMOND,
1753     EL_EMERALD_YELLOW,
1754     EL_EMERALD_RED,
1755     EL_EMERALD_PURPLE,
1756     EL_KEY_1,
1757     EL_KEY_2,
1758     EL_KEY_3,
1759     EL_KEY_4,
1760     EL_EM_KEY_1,
1761     EL_EM_KEY_2,
1762     EL_EM_KEY_3,
1763     EL_EM_KEY_4,
1764     EL_DYNAMITE,
1765     EL_DYNABOMB_INCREASE_NUMBER,
1766     EL_DYNABOMB_INCREASE_SIZE,
1767     EL_DYNABOMB_INCREASE_POWER,
1768     EL_SP_INFOTRON,
1769     EL_SP_DISK_RED,
1770     EL_PEARL,
1771     EL_CRYSTAL,
1772     EL_KEY_WHITE,
1773     EL_SHIELD_NORMAL,
1774     EL_SHIELD_DEADLY,
1775     EL_EXTRA_TIME,
1776     EL_ENVELOPE_1,
1777     EL_ENVELOPE_2,
1778     EL_ENVELOPE_3,
1779     EL_ENVELOPE_4,
1780     EL_SPEED_PILL,
1781     -1
1782   };
1783
1784   static int ep_dont_run_into[] =
1785   {
1786     /* same elements as in 'ep_dont_touch' */
1787     EL_BUG,
1788     EL_SPACESHIP,
1789     EL_BD_BUTTERFLY,
1790     EL_BD_FIREFLY,
1791
1792     /* same elements as in 'ep_dont_collide_with' */
1793     EL_YAMYAM,
1794     EL_DARK_YAMYAM,
1795     EL_ROBOT,
1796     EL_PACMAN,
1797     EL_SP_SNIKSNAK,
1798     EL_SP_ELECTRON,
1799
1800     /* new elements */
1801     EL_AMOEBA_DROP,
1802     EL_ACID,
1803
1804     /* !!! maybe this should better be handled by 'ep_diggable' !!! */
1805 #if 1
1806     EL_LANDMINE,
1807     EL_TRAP_ACTIVE,
1808     EL_SP_BUGGY_BASE_ACTIVE,
1809 #endif
1810     -1
1811   };
1812
1813   static int ep_dont_collide_with[] =
1814   {
1815     /* same elements as in 'ep_dont_touch' */
1816     EL_BUG,
1817     EL_SPACESHIP,
1818     EL_BD_BUTTERFLY,
1819     EL_BD_FIREFLY,
1820
1821     /* new elements */
1822     EL_YAMYAM,
1823     EL_DARK_YAMYAM,
1824     EL_ROBOT,
1825     EL_PACMAN,
1826     EL_SP_SNIKSNAK,
1827     EL_SP_ELECTRON,
1828     -1
1829   };
1830
1831   static int ep_dont_touch[] =
1832   {
1833     EL_BUG,
1834     EL_SPACESHIP,
1835     EL_BD_BUTTERFLY,
1836     EL_BD_FIREFLY,
1837     -1
1838   };
1839
1840   static int ep_indestructible[] =
1841   {
1842     EL_STEELWALL,
1843     EL_ACID,
1844     EL_ACID_POOL_TOPLEFT,
1845     EL_ACID_POOL_TOPRIGHT,
1846     EL_ACID_POOL_BOTTOMLEFT,
1847     EL_ACID_POOL_BOTTOM,
1848     EL_ACID_POOL_BOTTOMRIGHT,
1849     EL_SP_HARDWARE_GRAY,
1850     EL_SP_HARDWARE_GREEN,
1851     EL_SP_HARDWARE_BLUE,
1852     EL_SP_HARDWARE_RED,
1853     EL_SP_HARDWARE_YELLOW,
1854     EL_SP_HARDWARE_BASE_1,
1855     EL_SP_HARDWARE_BASE_2,
1856     EL_SP_HARDWARE_BASE_3,
1857     EL_SP_HARDWARE_BASE_4,
1858     EL_SP_HARDWARE_BASE_5,
1859     EL_SP_HARDWARE_BASE_6,
1860     EL_INVISIBLE_STEELWALL,
1861     EL_INVISIBLE_STEELWALL_ACTIVE,
1862     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1863     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1864     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1865     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1866     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1867     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1868     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1869     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1870     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1871     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1872     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1873     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1874     EL_LIGHT_SWITCH,
1875     EL_LIGHT_SWITCH_ACTIVE,
1876     EL_SIGN_EXCLAMATION,
1877     EL_SIGN_RADIOACTIVITY,
1878     EL_SIGN_STOP,
1879     EL_SIGN_WHEELCHAIR,
1880     EL_SIGN_PARKING,
1881     EL_SIGN_ONEWAY,
1882     EL_SIGN_HEART,
1883     EL_SIGN_TRIANGLE,
1884     EL_SIGN_ROUND,
1885     EL_SIGN_EXIT,
1886     EL_SIGN_YINYANG,
1887     EL_SIGN_OTHER,
1888     EL_STEELWALL_SLIPPERY,
1889     EL_EMC_STEELWALL_1,
1890     EL_EMC_STEELWALL_2,
1891     EL_EMC_STEELWALL_3,
1892     EL_EMC_STEELWALL_4,
1893     EL_CRYSTAL,
1894     EL_GATE_1,
1895     EL_GATE_2,
1896     EL_GATE_3,
1897     EL_GATE_4,
1898     EL_GATE_1_GRAY,
1899     EL_GATE_2_GRAY,
1900     EL_GATE_3_GRAY,
1901     EL_GATE_4_GRAY,
1902     EL_EM_GATE_1,
1903     EL_EM_GATE_2,
1904     EL_EM_GATE_3,
1905     EL_EM_GATE_4,
1906     EL_EM_GATE_1_GRAY,
1907     EL_EM_GATE_2_GRAY,
1908     EL_EM_GATE_3_GRAY,
1909     EL_EM_GATE_4_GRAY,
1910     EL_SWITCHGATE_OPEN,
1911     EL_SWITCHGATE_OPENING,
1912     EL_SWITCHGATE_CLOSED,
1913     EL_SWITCHGATE_CLOSING,
1914 #if 0
1915     EL_SWITCHGATE_SWITCH_UP,
1916     EL_SWITCHGATE_SWITCH_DOWN,
1917 #endif
1918     EL_TIMEGATE_OPEN,
1919     EL_TIMEGATE_OPENING,
1920     EL_TIMEGATE_CLOSED,
1921     EL_TIMEGATE_CLOSING,
1922 #if 0
1923     EL_TIMEGATE_SWITCH,
1924     EL_TIMEGATE_SWITCH_ACTIVE,
1925 #endif
1926     EL_TUBE_ANY,
1927     EL_TUBE_VERTICAL,
1928     EL_TUBE_HORIZONTAL,
1929     EL_TUBE_VERTICAL_LEFT,
1930     EL_TUBE_VERTICAL_RIGHT,
1931     EL_TUBE_HORIZONTAL_UP,
1932     EL_TUBE_HORIZONTAL_DOWN,
1933     EL_TUBE_LEFT_UP,
1934     EL_TUBE_LEFT_DOWN,
1935     EL_TUBE_RIGHT_UP,
1936     EL_TUBE_RIGHT_DOWN,
1937     -1
1938   };
1939
1940   static int ep_slippery[] =
1941   {
1942     EL_WALL_SLIPPERY,
1943     EL_BD_WALL,
1944     EL_ROCK,
1945     EL_BD_ROCK,
1946     EL_EMERALD,
1947     EL_BD_DIAMOND,
1948     EL_EMERALD_YELLOW,
1949     EL_EMERALD_RED,
1950     EL_EMERALD_PURPLE,
1951     EL_DIAMOND,
1952     EL_BOMB,
1953     EL_NUT,
1954     EL_ROBOT_WHEEL_ACTIVE,
1955     EL_ROBOT_WHEEL,
1956     EL_TIME_ORB_FULL,
1957     EL_TIME_ORB_EMPTY,
1958     EL_LAMP_ACTIVE,
1959     EL_LAMP,
1960     EL_ACID_POOL_TOPLEFT,
1961     EL_ACID_POOL_TOPRIGHT,
1962     EL_SATELLITE,
1963     EL_SP_ZONK,
1964     EL_SP_INFOTRON,
1965     EL_SP_CHIP_SINGLE,
1966     EL_SP_CHIP_LEFT,
1967     EL_SP_CHIP_RIGHT,
1968     EL_SP_CHIP_TOP,
1969     EL_SP_CHIP_BOTTOM,
1970     EL_SPEED_PILL,
1971     EL_STEELWALL_SLIPPERY,
1972     EL_PEARL,
1973     EL_CRYSTAL,
1974     -1
1975   };
1976
1977   static int ep_can_change[] =
1978   {
1979     -1
1980   };
1981
1982   static int ep_can_move[] =
1983   {
1984     /* same elements as in 'pb_can_move_into_acid' */
1985     EL_BUG,
1986     EL_SPACESHIP,
1987     EL_BD_BUTTERFLY,
1988     EL_BD_FIREFLY,
1989     EL_YAMYAM,
1990     EL_DARK_YAMYAM,
1991     EL_ROBOT,
1992     EL_PACMAN,
1993     EL_MOLE,
1994     EL_PENGUIN,
1995     EL_PIG,
1996     EL_DRAGON,
1997     EL_SATELLITE,
1998     EL_SP_SNIKSNAK,
1999     EL_SP_ELECTRON,
2000     EL_BALLOON,
2001     EL_SPRING,
2002     -1
2003   };
2004
2005   static int ep_can_fall[] =
2006   {
2007     EL_ROCK,
2008     EL_BD_ROCK,
2009     EL_EMERALD,
2010     EL_BD_DIAMOND,
2011     EL_EMERALD_YELLOW,
2012     EL_EMERALD_RED,
2013     EL_EMERALD_PURPLE,
2014     EL_DIAMOND,
2015     EL_BOMB,
2016     EL_NUT,
2017     EL_AMOEBA_DROP,
2018     EL_QUICKSAND_FULL,
2019     EL_MAGIC_WALL_FULL,
2020     EL_BD_MAGIC_WALL_FULL,
2021     EL_TIME_ORB_FULL,
2022     EL_TIME_ORB_EMPTY,
2023     EL_SP_ZONK,
2024     EL_SP_INFOTRON,
2025     EL_SP_DISK_ORANGE,
2026     EL_PEARL,
2027     EL_CRYSTAL,
2028     EL_SPRING,
2029     EL_DX_SUPABOMB,
2030     -1
2031   };
2032
2033   static int ep_can_smash_player[] =
2034   {
2035     EL_ROCK,
2036     EL_BD_ROCK,
2037     EL_EMERALD,
2038     EL_BD_DIAMOND,
2039     EL_EMERALD_YELLOW,
2040     EL_EMERALD_RED,
2041     EL_EMERALD_PURPLE,
2042     EL_DIAMOND,
2043     EL_BOMB,
2044     EL_NUT,
2045     EL_AMOEBA_DROP,
2046     EL_TIME_ORB_FULL,
2047     EL_TIME_ORB_EMPTY,
2048     EL_SP_ZONK,
2049     EL_SP_INFOTRON,
2050     EL_SP_DISK_ORANGE,
2051     EL_PEARL,
2052     EL_CRYSTAL,
2053     EL_SPRING,
2054     EL_DX_SUPABOMB,
2055     -1
2056   };
2057
2058   static int ep_can_smash_enemies[] =
2059   {
2060     EL_ROCK,
2061     EL_BD_ROCK,
2062     EL_SP_ZONK,
2063     -1
2064   };
2065
2066   static int ep_can_smash_everything[] =
2067   {
2068     EL_ROCK,
2069     EL_BD_ROCK,
2070     EL_SP_ZONK,
2071     -1
2072   };
2073
2074   static int ep_explodes_by_fire[] =
2075   {
2076     /* same elements as in 'ep_explodes_impact' */
2077     EL_BOMB,
2078     EL_SP_DISK_ORANGE,
2079     EL_DX_SUPABOMB,
2080
2081     /* same elements as in 'ep_explodes_smashed' */
2082     EL_SATELLITE,
2083     EL_PIG,
2084     EL_DRAGON,
2085     EL_MOLE,
2086
2087     /* new elements */
2088     EL_DYNAMITE_ACTIVE,
2089     EL_DYNAMITE,
2090     EL_DYNABOMB_PLAYER_1_ACTIVE,
2091     EL_DYNABOMB_PLAYER_2_ACTIVE,
2092     EL_DYNABOMB_PLAYER_3_ACTIVE,
2093     EL_DYNABOMB_PLAYER_4_ACTIVE,
2094     EL_DYNABOMB_INCREASE_NUMBER,
2095     EL_DYNABOMB_INCREASE_SIZE,
2096     EL_DYNABOMB_INCREASE_POWER,
2097     EL_SP_DISK_RED_ACTIVE,
2098     EL_BUG,
2099     EL_PENGUIN,
2100     EL_SP_DISK_RED,
2101     EL_SP_DISK_YELLOW,
2102     EL_SP_SNIKSNAK,
2103     EL_SP_ELECTRON,
2104 #if 0
2105     EL_BLACK_ORB,
2106 #endif
2107     -1
2108   };
2109
2110   static int ep_explodes_smashed[] =
2111   {
2112     /* same elements as in 'ep_explodes_impact' */
2113     EL_BOMB,
2114     EL_SP_DISK_ORANGE,
2115     EL_DX_SUPABOMB,
2116
2117     /* new elements */
2118     EL_SATELLITE,
2119     EL_PIG,
2120     EL_DRAGON,
2121     EL_MOLE,
2122     -1
2123   };
2124
2125   static int ep_explodes_impact[] =
2126   {
2127     EL_BOMB,
2128     EL_SP_DISK_ORANGE,
2129     EL_DX_SUPABOMB,
2130     -1
2131   };
2132
2133   static int ep_walkable_over[] =
2134   {
2135     EL_EMPTY_SPACE,
2136     EL_SP_EMPTY_SPACE,
2137     EL_SOKOBAN_FIELD_EMPTY,
2138     EL_EXIT_OPEN,
2139     EL_SP_EXIT_OPEN,
2140     EL_SP_EXIT_OPENING,
2141     EL_GATE_1,
2142     EL_GATE_2,
2143     EL_GATE_3,
2144     EL_GATE_4,
2145     EL_GATE_1_GRAY,
2146     EL_GATE_2_GRAY,
2147     EL_GATE_3_GRAY,
2148     EL_GATE_4_GRAY,
2149     EL_PENGUIN,
2150     EL_PIG,
2151     EL_DRAGON,
2152     -1
2153   };
2154
2155   static int ep_walkable_inside[] =
2156   {
2157     EL_TUBE_ANY,
2158     EL_TUBE_VERTICAL,
2159     EL_TUBE_HORIZONTAL,
2160     EL_TUBE_VERTICAL_LEFT,
2161     EL_TUBE_VERTICAL_RIGHT,
2162     EL_TUBE_HORIZONTAL_UP,
2163     EL_TUBE_HORIZONTAL_DOWN,
2164     EL_TUBE_LEFT_UP,
2165     EL_TUBE_LEFT_DOWN,
2166     EL_TUBE_RIGHT_UP,
2167     EL_TUBE_RIGHT_DOWN,
2168     -1
2169   };
2170
2171   static int ep_walkable_under[] =
2172   {
2173     -1
2174   };
2175
2176   static int ep_passable_over[] =
2177   {
2178     EL_EM_GATE_1,
2179     EL_EM_GATE_2,
2180     EL_EM_GATE_3,
2181     EL_EM_GATE_4,
2182     EL_EM_GATE_1_GRAY,
2183     EL_EM_GATE_2_GRAY,
2184     EL_EM_GATE_3_GRAY,
2185     EL_EM_GATE_4_GRAY,
2186     EL_SWITCHGATE_OPEN,
2187     EL_TIMEGATE_OPEN,
2188     -1
2189   };
2190
2191   static int ep_passable_inside[] =
2192   {
2193     EL_SP_PORT_LEFT,
2194     EL_SP_PORT_RIGHT,
2195     EL_SP_PORT_UP,
2196     EL_SP_PORT_DOWN,
2197     EL_SP_PORT_HORIZONTAL,
2198     EL_SP_PORT_VERTICAL,
2199     EL_SP_PORT_ANY,
2200     EL_SP_GRAVITY_PORT_LEFT,
2201     EL_SP_GRAVITY_PORT_RIGHT,
2202     EL_SP_GRAVITY_PORT_UP,
2203     EL_SP_GRAVITY_PORT_DOWN,
2204     -1
2205   };
2206
2207   static int ep_passable_under[] =
2208   {
2209     -1
2210   };
2211
2212   static int ep_droppable[] =
2213   {
2214     -1
2215   };
2216
2217   static int ep_explodes_1x1_old[] =
2218   {
2219     -1
2220   };
2221
2222   static int ep_pushable[] =
2223   {
2224     EL_ROCK,
2225     EL_BOMB,
2226     EL_DX_SUPABOMB,
2227     EL_NUT,
2228     EL_TIME_ORB_EMPTY,
2229     EL_SP_ZONK,
2230     EL_SP_DISK_ORANGE,
2231     EL_SPRING,
2232     EL_BD_ROCK,
2233     EL_SOKOBAN_OBJECT,
2234     EL_SOKOBAN_FIELD_FULL,
2235     EL_SATELLITE,
2236     EL_SP_DISK_YELLOW,
2237     EL_BALLOON,
2238     -1
2239   };
2240
2241   static int ep_explodes_cross_old[] =
2242   {
2243     -1
2244   };
2245
2246   static int ep_protected[] =
2247   {
2248     /* same elements as in 'ep_walkable_inside' */
2249     EL_TUBE_ANY,
2250     EL_TUBE_VERTICAL,
2251     EL_TUBE_HORIZONTAL,
2252     EL_TUBE_VERTICAL_LEFT,
2253     EL_TUBE_VERTICAL_RIGHT,
2254     EL_TUBE_HORIZONTAL_UP,
2255     EL_TUBE_HORIZONTAL_DOWN,
2256     EL_TUBE_LEFT_UP,
2257     EL_TUBE_LEFT_DOWN,
2258     EL_TUBE_RIGHT_UP,
2259     EL_TUBE_RIGHT_DOWN,
2260
2261     /* same elements as in 'ep_passable_over' */
2262     EL_EM_GATE_1,
2263     EL_EM_GATE_2,
2264     EL_EM_GATE_3,
2265     EL_EM_GATE_4,
2266     EL_EM_GATE_1_GRAY,
2267     EL_EM_GATE_2_GRAY,
2268     EL_EM_GATE_3_GRAY,
2269     EL_EM_GATE_4_GRAY,
2270     EL_SWITCHGATE_OPEN,
2271     EL_TIMEGATE_OPEN,
2272
2273     /* same elements as in 'ep_passable_inside' */
2274     EL_SP_PORT_LEFT,
2275     EL_SP_PORT_RIGHT,
2276     EL_SP_PORT_UP,
2277     EL_SP_PORT_DOWN,
2278     EL_SP_PORT_HORIZONTAL,
2279     EL_SP_PORT_VERTICAL,
2280     EL_SP_PORT_ANY,
2281     EL_SP_GRAVITY_PORT_LEFT,
2282     EL_SP_GRAVITY_PORT_RIGHT,
2283     EL_SP_GRAVITY_PORT_UP,
2284     EL_SP_GRAVITY_PORT_DOWN,
2285     -1
2286   };
2287
2288   static int ep_throwable[] =
2289   {
2290     -1
2291   };
2292
2293   static int ep_can_explode[] =
2294   {
2295     /* same elements as in 'ep_explodes_impact' */
2296     EL_BOMB,
2297     EL_SP_DISK_ORANGE,
2298     EL_DX_SUPABOMB,
2299
2300     /* same elements as in 'ep_explodes_smashed' */
2301     EL_SATELLITE,
2302     EL_PIG,
2303     EL_DRAGON,
2304     EL_MOLE,
2305
2306     /* elements that can explode by explosion or by dragonfire */
2307     EL_DYNAMITE_ACTIVE,
2308     EL_DYNAMITE,
2309     EL_DYNABOMB_PLAYER_1_ACTIVE,
2310     EL_DYNABOMB_PLAYER_2_ACTIVE,
2311     EL_DYNABOMB_PLAYER_3_ACTIVE,
2312     EL_DYNABOMB_PLAYER_4_ACTIVE,
2313     EL_DYNABOMB_INCREASE_NUMBER,
2314     EL_DYNABOMB_INCREASE_SIZE,
2315     EL_DYNABOMB_INCREASE_POWER,
2316     EL_SP_DISK_RED_ACTIVE,
2317     EL_BUG,
2318     EL_PENGUIN,
2319     EL_SP_DISK_RED,
2320     EL_SP_DISK_YELLOW,
2321     EL_SP_SNIKSNAK,
2322     EL_SP_ELECTRON,
2323
2324     /* elements that can explode only by explosion */
2325     EL_BLACK_ORB,
2326     -1
2327   };
2328
2329   static int ep_gravity_reachable[] =
2330   {
2331     EL_SAND,
2332     EL_SP_BASE,
2333     EL_TRAP,
2334     EL_INVISIBLE_SAND,
2335     EL_INVISIBLE_SAND_ACTIVE,
2336     EL_SP_PORT_LEFT,
2337     EL_SP_PORT_RIGHT,
2338     EL_SP_PORT_UP,
2339     EL_SP_PORT_DOWN,
2340     EL_SP_PORT_HORIZONTAL,
2341     EL_SP_PORT_VERTICAL,
2342     EL_SP_PORT_ANY,
2343     EL_SP_GRAVITY_PORT_LEFT,
2344     EL_SP_GRAVITY_PORT_RIGHT,
2345     EL_SP_GRAVITY_PORT_UP,
2346     EL_SP_GRAVITY_PORT_DOWN,
2347     -1
2348   };
2349
2350   static int ep_player[] =
2351   {
2352     EL_PLAYER_1,
2353     EL_PLAYER_2,
2354     EL_PLAYER_3,
2355     EL_PLAYER_4,
2356     EL_SP_MURPHY,
2357     EL_SOKOBAN_FIELD_PLAYER,
2358     EL_TRIGGER_PLAYER,
2359     -1
2360   };
2361
2362   static int ep_can_pass_magic_wall[] =
2363   {
2364     EL_ROCK,
2365     EL_BD_ROCK,
2366     EL_EMERALD,
2367     EL_BD_DIAMOND,
2368     EL_EMERALD_YELLOW,
2369     EL_EMERALD_RED,
2370     EL_EMERALD_PURPLE,
2371     EL_DIAMOND,
2372     -1
2373   };
2374
2375   static int ep_switchable[] =
2376   {
2377     EL_ROBOT_WHEEL,
2378     EL_SP_TERMINAL,
2379     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2380     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2381     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2382     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2383     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2384     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2385     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2386     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2387     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2388     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2389     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2390     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2391     EL_SWITCHGATE_SWITCH_UP,
2392     EL_SWITCHGATE_SWITCH_DOWN,
2393     EL_LIGHT_SWITCH,
2394     EL_LIGHT_SWITCH_ACTIVE,
2395     EL_TIMEGATE_SWITCH,
2396     EL_BALLOON_SWITCH_LEFT,
2397     EL_BALLOON_SWITCH_RIGHT,
2398     EL_BALLOON_SWITCH_UP,
2399     EL_BALLOON_SWITCH_DOWN,
2400     EL_BALLOON_SWITCH_ANY,
2401     EL_LAMP,
2402     EL_TIME_ORB_FULL,
2403     -1
2404   };
2405
2406   static int ep_bd_element[] =
2407   {
2408     EL_EMPTY,
2409     EL_SAND,
2410     EL_WALL_SLIPPERY,
2411     EL_BD_WALL,
2412     EL_ROCK,
2413     EL_BD_ROCK,
2414     EL_BD_DIAMOND,
2415     EL_BD_MAGIC_WALL,
2416     EL_EXIT_CLOSED,
2417     EL_EXIT_OPEN,
2418     EL_STEELWALL,
2419     EL_PLAYER_1,
2420     EL_PLAYER_2,
2421     EL_PLAYER_3,
2422     EL_PLAYER_4,
2423     EL_BD_FIREFLY,
2424     EL_BD_FIREFLY_1,
2425     EL_BD_FIREFLY_2,
2426     EL_BD_FIREFLY_3,
2427     EL_BD_FIREFLY_4,
2428     EL_BD_BUTTERFLY,
2429     EL_BD_BUTTERFLY_1,
2430     EL_BD_BUTTERFLY_2,
2431     EL_BD_BUTTERFLY_3,
2432     EL_BD_BUTTERFLY_4,
2433     EL_BD_AMOEBA,
2434     EL_CHAR_QUESTION,
2435     EL_UNKNOWN,
2436     -1
2437   };
2438
2439   static int ep_sp_element[] =
2440   {
2441     /* should always be valid */
2442     EL_EMPTY,
2443
2444     EL_SP_EMPTY,
2445     EL_SP_ZONK,
2446     EL_SP_BASE,
2447     EL_SP_MURPHY,
2448     EL_SP_INFOTRON,
2449     EL_SP_CHIP_SINGLE,
2450     EL_SP_HARDWARE_GRAY,
2451     EL_SP_EXIT_CLOSED,
2452     EL_SP_EXIT_OPEN,
2453     EL_SP_DISK_ORANGE,
2454     EL_SP_PORT_RIGHT,
2455     EL_SP_PORT_DOWN,
2456     EL_SP_PORT_LEFT,
2457     EL_SP_PORT_UP,
2458     EL_SP_GRAVITY_PORT_RIGHT,
2459     EL_SP_GRAVITY_PORT_DOWN,
2460     EL_SP_GRAVITY_PORT_LEFT,
2461     EL_SP_GRAVITY_PORT_UP,
2462     EL_SP_SNIKSNAK,
2463     EL_SP_DISK_YELLOW,
2464     EL_SP_TERMINAL,
2465     EL_SP_DISK_RED,
2466     EL_SP_PORT_VERTICAL,
2467     EL_SP_PORT_HORIZONTAL,
2468     EL_SP_PORT_ANY,
2469     EL_SP_ELECTRON,
2470     EL_SP_BUGGY_BASE,
2471     EL_SP_CHIP_LEFT,
2472     EL_SP_CHIP_RIGHT,
2473     EL_SP_HARDWARE_BASE_1,
2474     EL_SP_HARDWARE_GREEN,
2475     EL_SP_HARDWARE_BLUE,
2476     EL_SP_HARDWARE_RED,
2477     EL_SP_HARDWARE_YELLOW,
2478     EL_SP_HARDWARE_BASE_2,
2479     EL_SP_HARDWARE_BASE_3,
2480     EL_SP_HARDWARE_BASE_4,
2481     EL_SP_HARDWARE_BASE_5,
2482     EL_SP_HARDWARE_BASE_6,
2483     EL_SP_CHIP_TOP,
2484     EL_SP_CHIP_BOTTOM,
2485     /* additional elements that appeared in newer Supaplex levels */
2486     EL_INVISIBLE_WALL,
2487     /* more than one murphy in a level results in an inactive clone */
2488     EL_SP_MURPHY_CLONE,
2489     /* runtime elements*/
2490     EL_SP_DISK_RED_ACTIVE,
2491     EL_SP_TERMINAL_ACTIVE,
2492     EL_SP_BUGGY_BASE_ACTIVATING,
2493     EL_SP_BUGGY_BASE_ACTIVE,
2494     EL_SP_EXIT_OPENING,
2495     EL_SP_EXIT_CLOSING,
2496     -1
2497   };
2498
2499   static int ep_sb_element[] =
2500   {
2501     EL_EMPTY,
2502     EL_STEELWALL,
2503     EL_SOKOBAN_OBJECT,
2504     EL_SOKOBAN_FIELD_EMPTY,
2505     EL_SOKOBAN_FIELD_FULL,
2506     EL_SOKOBAN_FIELD_PLAYER,
2507     EL_PLAYER_1,
2508     EL_PLAYER_2,
2509     EL_PLAYER_3,
2510     EL_PLAYER_4,
2511     EL_INVISIBLE_STEELWALL,
2512     -1
2513   };
2514
2515   static int ep_gem[] =
2516   {
2517     EL_BD_DIAMOND,
2518     EL_EMERALD,
2519     EL_EMERALD_YELLOW,
2520     EL_EMERALD_RED,
2521     EL_EMERALD_PURPLE,
2522     EL_DIAMOND,
2523     -1
2524   };
2525
2526   static int ep_food_dark_yamyam[] =
2527   {
2528     EL_SAND,
2529     EL_BUG,
2530     EL_SPACESHIP,
2531     EL_BD_BUTTERFLY,
2532     EL_BD_FIREFLY,
2533     EL_YAMYAM,
2534     EL_ROBOT,
2535     EL_PACMAN,
2536     EL_AMOEBA_DROP,
2537     EL_AMOEBA_DEAD,
2538     EL_AMOEBA_WET,
2539     EL_AMOEBA_DRY,
2540     EL_AMOEBA_FULL,
2541     EL_BD_AMOEBA,
2542     EL_EMERALD,
2543     EL_BD_DIAMOND,
2544     EL_EMERALD_YELLOW,
2545     EL_EMERALD_RED,
2546     EL_EMERALD_PURPLE,
2547     EL_DIAMOND,
2548     EL_PEARL,
2549     EL_CRYSTAL,
2550     -1
2551   };
2552
2553   static int ep_food_penguin[] =
2554   {
2555     EL_EMERALD,
2556     EL_BD_DIAMOND,
2557     EL_EMERALD_YELLOW,
2558     EL_EMERALD_RED,
2559     EL_EMERALD_PURPLE,
2560     EL_DIAMOND,
2561     EL_PEARL,
2562     EL_CRYSTAL,
2563     -1
2564   };
2565
2566   static int ep_food_pig[] =
2567   {
2568     EL_EMERALD,
2569     EL_BD_DIAMOND,
2570     EL_EMERALD_YELLOW,
2571     EL_EMERALD_RED,
2572     EL_EMERALD_PURPLE,
2573     EL_DIAMOND,
2574     -1
2575   };
2576
2577   static int ep_historic_wall[] =
2578   {
2579     EL_STEELWALL,
2580     EL_GATE_1,
2581     EL_GATE_2,
2582     EL_GATE_3,
2583     EL_GATE_4,
2584     EL_GATE_1_GRAY,
2585     EL_GATE_2_GRAY,
2586     EL_GATE_3_GRAY,
2587     EL_GATE_4_GRAY,
2588     EL_EM_GATE_1,
2589     EL_EM_GATE_2,
2590     EL_EM_GATE_3,
2591     EL_EM_GATE_4,
2592     EL_EM_GATE_1_GRAY,
2593     EL_EM_GATE_2_GRAY,
2594     EL_EM_GATE_3_GRAY,
2595     EL_EM_GATE_4_GRAY,
2596     EL_EXIT_CLOSED,
2597     EL_EXIT_OPENING,
2598     EL_EXIT_OPEN,
2599     EL_WALL,
2600     EL_WALL_SLIPPERY,
2601     EL_EXPANDABLE_WALL,
2602     EL_EXPANDABLE_WALL_HORIZONTAL,
2603     EL_EXPANDABLE_WALL_VERTICAL,
2604     EL_EXPANDABLE_WALL_ANY,
2605     EL_EXPANDABLE_WALL_GROWING,
2606     EL_BD_WALL,
2607     EL_SP_CHIP_SINGLE,
2608     EL_SP_CHIP_LEFT,
2609     EL_SP_CHIP_RIGHT,
2610     EL_SP_CHIP_TOP,
2611     EL_SP_CHIP_BOTTOM,
2612     EL_SP_HARDWARE_GRAY,
2613     EL_SP_HARDWARE_GREEN,
2614     EL_SP_HARDWARE_BLUE,
2615     EL_SP_HARDWARE_RED,
2616     EL_SP_HARDWARE_YELLOW,
2617     EL_SP_HARDWARE_BASE_1,
2618     EL_SP_HARDWARE_BASE_2,
2619     EL_SP_HARDWARE_BASE_3,
2620     EL_SP_HARDWARE_BASE_4,
2621     EL_SP_HARDWARE_BASE_5,
2622     EL_SP_HARDWARE_BASE_6,
2623     EL_SP_TERMINAL,
2624     EL_SP_TERMINAL_ACTIVE,
2625     EL_SP_EXIT_CLOSED,
2626     EL_SP_EXIT_OPEN,
2627     EL_INVISIBLE_STEELWALL,
2628     EL_INVISIBLE_STEELWALL_ACTIVE,
2629     EL_INVISIBLE_WALL,
2630     EL_INVISIBLE_WALL_ACTIVE,
2631     EL_STEELWALL_SLIPPERY,
2632     EL_EMC_STEELWALL_1,
2633     EL_EMC_STEELWALL_2,
2634     EL_EMC_STEELWALL_3,
2635     EL_EMC_STEELWALL_4,
2636     EL_EMC_WALL_1,
2637     EL_EMC_WALL_2,
2638     EL_EMC_WALL_3,
2639     EL_EMC_WALL_4,
2640     EL_EMC_WALL_5,
2641     EL_EMC_WALL_6,
2642     EL_EMC_WALL_7,
2643     EL_EMC_WALL_8,
2644     -1
2645   };
2646
2647   static int ep_historic_solid[] =
2648   {
2649     EL_WALL,
2650     EL_EXPANDABLE_WALL,
2651     EL_EXPANDABLE_WALL_HORIZONTAL,
2652     EL_EXPANDABLE_WALL_VERTICAL,
2653     EL_EXPANDABLE_WALL_ANY,
2654     EL_BD_WALL,
2655     EL_WALL_SLIPPERY,
2656     EL_EXIT_CLOSED,
2657     EL_EXIT_OPENING,
2658     EL_EXIT_OPEN,
2659     EL_AMOEBA_DEAD,
2660     EL_AMOEBA_WET,
2661     EL_AMOEBA_DRY,
2662     EL_AMOEBA_FULL,
2663     EL_BD_AMOEBA,
2664     EL_QUICKSAND_EMPTY,
2665     EL_QUICKSAND_FULL,
2666     EL_QUICKSAND_FILLING,
2667     EL_QUICKSAND_EMPTYING,
2668     EL_MAGIC_WALL,
2669     EL_MAGIC_WALL_ACTIVE,
2670     EL_MAGIC_WALL_EMPTYING,
2671     EL_MAGIC_WALL_FILLING,
2672     EL_MAGIC_WALL_FULL,
2673     EL_MAGIC_WALL_DEAD,
2674     EL_BD_MAGIC_WALL,
2675     EL_BD_MAGIC_WALL_ACTIVE,
2676     EL_BD_MAGIC_WALL_EMPTYING,
2677     EL_BD_MAGIC_WALL_FULL,
2678     EL_BD_MAGIC_WALL_FILLING,
2679     EL_BD_MAGIC_WALL_DEAD,
2680     EL_GAME_OF_LIFE,
2681     EL_BIOMAZE,
2682     EL_SP_CHIP_SINGLE,
2683     EL_SP_CHIP_LEFT,
2684     EL_SP_CHIP_RIGHT,
2685     EL_SP_CHIP_TOP,
2686     EL_SP_CHIP_BOTTOM,
2687     EL_SP_TERMINAL,
2688     EL_SP_TERMINAL_ACTIVE,
2689     EL_SP_EXIT_CLOSED,
2690     EL_SP_EXIT_OPEN,
2691     EL_INVISIBLE_WALL,
2692     EL_INVISIBLE_WALL_ACTIVE,
2693     EL_SWITCHGATE_SWITCH_UP,
2694     EL_SWITCHGATE_SWITCH_DOWN,
2695     EL_TIMEGATE_SWITCH,
2696     EL_TIMEGATE_SWITCH_ACTIVE,
2697     EL_EMC_WALL_1,
2698     EL_EMC_WALL_2,
2699     EL_EMC_WALL_3,
2700     EL_EMC_WALL_4,
2701     EL_EMC_WALL_5,
2702     EL_EMC_WALL_6,
2703     EL_EMC_WALL_7,
2704     EL_EMC_WALL_8,
2705     EL_WALL_PEARL,
2706     EL_WALL_CRYSTAL,
2707
2708     /* the following elements are a direct copy of "indestructible" elements,
2709        except "EL_ACID", which is "indestructible", but not "solid"! */
2710 #if 0
2711     EL_ACID,
2712 #endif
2713     EL_STEELWALL,
2714     EL_ACID_POOL_TOPLEFT,
2715     EL_ACID_POOL_TOPRIGHT,
2716     EL_ACID_POOL_BOTTOMLEFT,
2717     EL_ACID_POOL_BOTTOM,
2718     EL_ACID_POOL_BOTTOMRIGHT,
2719     EL_SP_HARDWARE_GRAY,
2720     EL_SP_HARDWARE_GREEN,
2721     EL_SP_HARDWARE_BLUE,
2722     EL_SP_HARDWARE_RED,
2723     EL_SP_HARDWARE_YELLOW,
2724     EL_SP_HARDWARE_BASE_1,
2725     EL_SP_HARDWARE_BASE_2,
2726     EL_SP_HARDWARE_BASE_3,
2727     EL_SP_HARDWARE_BASE_4,
2728     EL_SP_HARDWARE_BASE_5,
2729     EL_SP_HARDWARE_BASE_6,
2730     EL_INVISIBLE_STEELWALL,
2731     EL_INVISIBLE_STEELWALL_ACTIVE,
2732     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2733     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2734     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2735     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2736     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2737     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2738     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2739     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2740     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2741     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2742     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2743     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2744     EL_LIGHT_SWITCH,
2745     EL_LIGHT_SWITCH_ACTIVE,
2746     EL_SIGN_EXCLAMATION,
2747     EL_SIGN_RADIOACTIVITY,
2748     EL_SIGN_STOP,
2749     EL_SIGN_WHEELCHAIR,
2750     EL_SIGN_PARKING,
2751     EL_SIGN_ONEWAY,
2752     EL_SIGN_HEART,
2753     EL_SIGN_TRIANGLE,
2754     EL_SIGN_ROUND,
2755     EL_SIGN_EXIT,
2756     EL_SIGN_YINYANG,
2757     EL_SIGN_OTHER,
2758     EL_STEELWALL_SLIPPERY,
2759     EL_EMC_STEELWALL_1,
2760     EL_EMC_STEELWALL_2,
2761     EL_EMC_STEELWALL_3,
2762     EL_EMC_STEELWALL_4,
2763     EL_CRYSTAL,
2764     EL_GATE_1,
2765     EL_GATE_2,
2766     EL_GATE_3,
2767     EL_GATE_4,
2768     EL_GATE_1_GRAY,
2769     EL_GATE_2_GRAY,
2770     EL_GATE_3_GRAY,
2771     EL_GATE_4_GRAY,
2772     EL_EM_GATE_1,
2773     EL_EM_GATE_2,
2774     EL_EM_GATE_3,
2775     EL_EM_GATE_4,
2776     EL_EM_GATE_1_GRAY,
2777     EL_EM_GATE_2_GRAY,
2778     EL_EM_GATE_3_GRAY,
2779     EL_EM_GATE_4_GRAY,
2780     EL_SWITCHGATE_OPEN,
2781     EL_SWITCHGATE_OPENING,
2782     EL_SWITCHGATE_CLOSED,
2783     EL_SWITCHGATE_CLOSING,
2784     EL_TIMEGATE_OPEN,
2785     EL_TIMEGATE_OPENING,
2786     EL_TIMEGATE_CLOSED,
2787     EL_TIMEGATE_CLOSING,
2788     EL_TUBE_ANY,
2789     EL_TUBE_VERTICAL,
2790     EL_TUBE_HORIZONTAL,
2791     EL_TUBE_VERTICAL_LEFT,
2792     EL_TUBE_VERTICAL_RIGHT,
2793     EL_TUBE_HORIZONTAL_UP,
2794     EL_TUBE_HORIZONTAL_DOWN,
2795     EL_TUBE_LEFT_UP,
2796     EL_TUBE_LEFT_DOWN,
2797     EL_TUBE_RIGHT_UP,
2798     EL_TUBE_RIGHT_DOWN,
2799     -1
2800   };
2801
2802   static int ep_classic_enemy[] =
2803   {
2804     EL_BUG,
2805     EL_SPACESHIP,
2806     EL_BD_BUTTERFLY,
2807     EL_BD_FIREFLY,
2808
2809     EL_YAMYAM,
2810     EL_DARK_YAMYAM,
2811     EL_ROBOT,
2812     EL_PACMAN,
2813     EL_SP_SNIKSNAK,
2814     EL_SP_ELECTRON,
2815     -1
2816   };
2817
2818   static int ep_belt[] =
2819   {
2820     EL_CONVEYOR_BELT_1_LEFT,
2821     EL_CONVEYOR_BELT_1_MIDDLE,
2822     EL_CONVEYOR_BELT_1_RIGHT,
2823     EL_CONVEYOR_BELT_2_LEFT,
2824     EL_CONVEYOR_BELT_2_MIDDLE,
2825     EL_CONVEYOR_BELT_2_RIGHT,
2826     EL_CONVEYOR_BELT_3_LEFT,
2827     EL_CONVEYOR_BELT_3_MIDDLE,
2828     EL_CONVEYOR_BELT_3_RIGHT,
2829     EL_CONVEYOR_BELT_4_LEFT,
2830     EL_CONVEYOR_BELT_4_MIDDLE,
2831     EL_CONVEYOR_BELT_4_RIGHT,
2832     -1
2833   };
2834
2835   static int ep_belt_active[] =
2836   {
2837     EL_CONVEYOR_BELT_1_LEFT_ACTIVE,
2838     EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE,
2839     EL_CONVEYOR_BELT_1_RIGHT_ACTIVE,
2840     EL_CONVEYOR_BELT_2_LEFT_ACTIVE,
2841     EL_CONVEYOR_BELT_2_MIDDLE_ACTIVE,
2842     EL_CONVEYOR_BELT_2_RIGHT_ACTIVE,
2843     EL_CONVEYOR_BELT_3_LEFT_ACTIVE,
2844     EL_CONVEYOR_BELT_3_MIDDLE_ACTIVE,
2845     EL_CONVEYOR_BELT_3_RIGHT_ACTIVE,
2846     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
2847     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
2848     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
2849     -1
2850   };
2851
2852   static int ep_belt_switch[] =
2853   {
2854     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2855     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2856     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2857     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2858     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2859     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2860     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2861     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2862     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2863     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2864     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2865     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2866     -1
2867   };
2868
2869   static int ep_tube[] =
2870   {
2871     EL_TUBE_LEFT_UP,
2872     EL_TUBE_LEFT_DOWN,
2873     EL_TUBE_RIGHT_UP,
2874     EL_TUBE_RIGHT_DOWN,
2875     EL_TUBE_HORIZONTAL,
2876     EL_TUBE_HORIZONTAL_UP,
2877     EL_TUBE_HORIZONTAL_DOWN,
2878     EL_TUBE_VERTICAL,
2879     EL_TUBE_VERTICAL_LEFT,
2880     EL_TUBE_VERTICAL_RIGHT,
2881     EL_TUBE_ANY,
2882     -1
2883   };
2884
2885   static int ep_keygate[] =
2886   {
2887     EL_GATE_1,
2888     EL_GATE_2,
2889     EL_GATE_3,
2890     EL_GATE_4,
2891     EL_GATE_1_GRAY,
2892     EL_GATE_2_GRAY,
2893     EL_GATE_3_GRAY,
2894     EL_GATE_4_GRAY,
2895     EL_EM_GATE_1,
2896     EL_EM_GATE_2,
2897     EL_EM_GATE_3,
2898     EL_EM_GATE_4,
2899     EL_EM_GATE_1_GRAY,
2900     EL_EM_GATE_2_GRAY,
2901     EL_EM_GATE_3_GRAY,
2902     EL_EM_GATE_4_GRAY,
2903     -1
2904   };
2905
2906   static int ep_amoeboid[] =
2907   {
2908     EL_AMOEBA_DEAD,
2909     EL_AMOEBA_WET,
2910     EL_AMOEBA_DRY,
2911     EL_AMOEBA_FULL,
2912     EL_BD_AMOEBA,
2913     -1
2914   };
2915
2916   static int ep_amoebalive[] =
2917   {
2918     EL_AMOEBA_WET,
2919     EL_AMOEBA_DRY,
2920     EL_AMOEBA_FULL,
2921     EL_BD_AMOEBA,
2922     -1
2923   };
2924
2925   static int ep_has_content[] =
2926   {
2927     EL_YAMYAM,
2928     EL_AMOEBA_WET,
2929     EL_AMOEBA_DRY,
2930     EL_AMOEBA_FULL,
2931     EL_BD_AMOEBA,
2932     -1
2933   };
2934
2935   static int ep_can_turn_each_move[] =
2936   {
2937     /* !!! do something with this one !!! */
2938     -1
2939   };
2940
2941   static int ep_can_grow[] =
2942   {
2943     EL_BD_AMOEBA,
2944     EL_AMOEBA_DROP,
2945     EL_AMOEBA_WET,
2946     EL_AMOEBA_DRY,
2947     EL_AMOEBA_FULL,
2948     EL_GAME_OF_LIFE,
2949     EL_BIOMAZE,
2950     -1
2951   };
2952
2953   static int ep_active_bomb[] =
2954   {
2955     EL_DYNAMITE_ACTIVE,
2956     EL_DYNABOMB_PLAYER_1_ACTIVE,
2957     EL_DYNABOMB_PLAYER_2_ACTIVE,
2958     EL_DYNABOMB_PLAYER_3_ACTIVE,
2959     EL_DYNABOMB_PLAYER_4_ACTIVE,
2960     EL_SP_DISK_RED_ACTIVE,
2961     -1
2962   };
2963
2964   static int ep_inactive[] =
2965   {
2966     EL_EMPTY,
2967     EL_SAND,
2968     EL_WALL,
2969     EL_BD_WALL,
2970     EL_WALL_SLIPPERY,
2971     EL_STEELWALL,
2972     EL_AMOEBA_DEAD,
2973     EL_QUICKSAND_EMPTY,
2974     EL_STONEBLOCK,
2975     EL_ROBOT_WHEEL,
2976     EL_KEY_1,
2977     EL_KEY_2,
2978     EL_KEY_3,
2979     EL_KEY_4,
2980     EL_EM_KEY_1,
2981     EL_EM_KEY_2,
2982     EL_EM_KEY_3,
2983     EL_EM_KEY_4,
2984     EL_GATE_1,
2985     EL_GATE_2,
2986     EL_GATE_3,
2987     EL_GATE_4,
2988     EL_GATE_1_GRAY,
2989     EL_GATE_2_GRAY,
2990     EL_GATE_3_GRAY,
2991     EL_GATE_4_GRAY,
2992     EL_EM_GATE_1,
2993     EL_EM_GATE_2,
2994     EL_EM_GATE_3,
2995     EL_EM_GATE_4,
2996     EL_EM_GATE_1_GRAY,
2997     EL_EM_GATE_2_GRAY,
2998     EL_EM_GATE_3_GRAY,
2999     EL_EM_GATE_4_GRAY,
3000     EL_DYNAMITE,
3001     EL_INVISIBLE_STEELWALL,
3002     EL_INVISIBLE_WALL,
3003     EL_INVISIBLE_SAND,
3004     EL_LAMP,
3005     EL_LAMP_ACTIVE,
3006     EL_WALL_EMERALD,
3007     EL_WALL_DIAMOND,
3008     EL_WALL_BD_DIAMOND,
3009     EL_WALL_EMERALD_YELLOW,
3010     EL_DYNABOMB_INCREASE_NUMBER,
3011     EL_DYNABOMB_INCREASE_SIZE,
3012     EL_DYNABOMB_INCREASE_POWER,
3013 #if 0
3014     EL_SOKOBAN_OBJECT,
3015 #endif
3016     EL_SOKOBAN_FIELD_EMPTY,
3017     EL_SOKOBAN_FIELD_FULL,
3018     EL_WALL_EMERALD_RED,
3019     EL_WALL_EMERALD_PURPLE,
3020     EL_ACID_POOL_TOPLEFT,
3021     EL_ACID_POOL_TOPRIGHT,
3022     EL_ACID_POOL_BOTTOMLEFT,
3023     EL_ACID_POOL_BOTTOM,
3024     EL_ACID_POOL_BOTTOMRIGHT,
3025     EL_MAGIC_WALL,
3026     EL_MAGIC_WALL_DEAD,
3027     EL_BD_MAGIC_WALL,
3028     EL_BD_MAGIC_WALL_DEAD,
3029     EL_AMOEBA_TO_DIAMOND,
3030     EL_BLOCKED,
3031     EL_SP_EMPTY,
3032     EL_SP_BASE,
3033     EL_SP_PORT_RIGHT,
3034     EL_SP_PORT_DOWN,
3035     EL_SP_PORT_LEFT,
3036     EL_SP_PORT_UP,
3037     EL_SP_GRAVITY_PORT_RIGHT,
3038     EL_SP_GRAVITY_PORT_DOWN,
3039     EL_SP_GRAVITY_PORT_LEFT,
3040     EL_SP_GRAVITY_PORT_UP,
3041     EL_SP_PORT_HORIZONTAL,
3042     EL_SP_PORT_VERTICAL,
3043     EL_SP_PORT_ANY,
3044     EL_SP_DISK_RED,
3045 #if 0
3046     EL_SP_DISK_YELLOW,
3047 #endif
3048     EL_SP_CHIP_SINGLE,
3049     EL_SP_CHIP_LEFT,
3050     EL_SP_CHIP_RIGHT,
3051     EL_SP_CHIP_TOP,
3052     EL_SP_CHIP_BOTTOM,
3053     EL_SP_HARDWARE_GRAY,
3054     EL_SP_HARDWARE_GREEN,
3055     EL_SP_HARDWARE_BLUE,
3056     EL_SP_HARDWARE_RED,
3057     EL_SP_HARDWARE_YELLOW,
3058     EL_SP_HARDWARE_BASE_1,
3059     EL_SP_HARDWARE_BASE_2,
3060     EL_SP_HARDWARE_BASE_3,
3061     EL_SP_HARDWARE_BASE_4,
3062     EL_SP_HARDWARE_BASE_5,
3063     EL_SP_HARDWARE_BASE_6,
3064     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3065     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3066     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3067     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3068     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3069     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3070     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3071     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3072     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3073     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3074     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3075     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3076     EL_SIGN_EXCLAMATION,
3077     EL_SIGN_RADIOACTIVITY,
3078     EL_SIGN_STOP,
3079     EL_SIGN_WHEELCHAIR,
3080     EL_SIGN_PARKING,
3081     EL_SIGN_ONEWAY,
3082     EL_SIGN_HEART,
3083     EL_SIGN_TRIANGLE,
3084     EL_SIGN_ROUND,
3085     EL_SIGN_EXIT,
3086     EL_SIGN_YINYANG,
3087     EL_SIGN_OTHER,
3088     EL_STEELWALL_SLIPPERY,
3089     EL_EMC_STEELWALL_1,
3090     EL_EMC_STEELWALL_2,
3091     EL_EMC_STEELWALL_3,
3092     EL_EMC_STEELWALL_4,
3093     EL_EMC_WALL_1,
3094     EL_EMC_WALL_2,
3095     EL_EMC_WALL_3,
3096     EL_EMC_WALL_4,
3097     EL_EMC_WALL_5,
3098     EL_EMC_WALL_6,
3099     EL_EMC_WALL_7,
3100     EL_EMC_WALL_8,
3101     -1
3102   };
3103
3104   static int ep_em_slippery_wall[] =
3105   {
3106     -1
3107   };
3108
3109   static int ep_gfx_crumbled[] =
3110   {
3111     EL_SAND,
3112     EL_LANDMINE,
3113     EL_TRAP,
3114     EL_TRAP_ACTIVE,
3115     -1
3116   };
3117
3118   static struct
3119   {
3120     int *elements;
3121     int property;
3122   } element_properties[] =
3123   {
3124     { ep_diggable,              EP_DIGGABLE             },
3125     { ep_collectible_only,      EP_COLLECTIBLE_ONLY     },
3126     { ep_dont_run_into,         EP_DONT_RUN_INTO        },
3127     { ep_dont_collide_with,     EP_DONT_COLLIDE_WITH    },
3128     { ep_dont_touch,            EP_DONT_TOUCH           },
3129     { ep_indestructible,        EP_INDESTRUCTIBLE       },
3130     { ep_slippery,              EP_SLIPPERY             },
3131     { ep_can_change,            EP_CAN_CHANGE           },
3132     { ep_can_move,              EP_CAN_MOVE             },
3133     { ep_can_fall,              EP_CAN_FALL             },
3134     { ep_can_smash_player,      EP_CAN_SMASH_PLAYER     },
3135     { ep_can_smash_enemies,     EP_CAN_SMASH_ENEMIES    },
3136     { ep_can_smash_everything,  EP_CAN_SMASH_EVERYTHING },
3137     { ep_explodes_by_fire,      EP_EXPLODES_BY_FIRE     },
3138     { ep_explodes_smashed,      EP_EXPLODES_SMASHED     },
3139     { ep_explodes_impact,       EP_EXPLODES_IMPACT      },
3140     { ep_walkable_over,         EP_WALKABLE_OVER        },
3141     { ep_walkable_inside,       EP_WALKABLE_INSIDE      },
3142     { ep_walkable_under,        EP_WALKABLE_UNDER       },
3143     { ep_passable_over,         EP_PASSABLE_OVER        },
3144     { ep_passable_inside,       EP_PASSABLE_INSIDE      },
3145     { ep_passable_under,        EP_PASSABLE_UNDER       },
3146     { ep_droppable,             EP_DROPPABLE            },
3147     { ep_explodes_1x1_old,      EP_EXPLODES_1X1_OLD     },
3148     { ep_pushable,              EP_PUSHABLE             },
3149     { ep_explodes_cross_old,    EP_EXPLODES_CROSS_OLD   },
3150     { ep_protected,             EP_PROTECTED            },
3151     { ep_throwable,             EP_THROWABLE            },
3152     { ep_can_explode,           EP_CAN_EXPLODE          },
3153     { ep_gravity_reachable,     EP_GRAVITY_REACHABLE    },
3154
3155     { ep_player,                EP_PLAYER               },
3156     { ep_can_pass_magic_wall,   EP_CAN_PASS_MAGIC_WALL  },
3157     { ep_switchable,            EP_SWITCHABLE           },
3158     { ep_bd_element,            EP_BD_ELEMENT           },
3159     { ep_sp_element,            EP_SP_ELEMENT           },
3160     { ep_sb_element,            EP_SB_ELEMENT           },
3161     { ep_gem,                   EP_GEM                  },
3162     { ep_food_dark_yamyam,      EP_FOOD_DARK_YAMYAM     },
3163     { ep_food_penguin,          EP_FOOD_PENGUIN         },
3164     { ep_food_pig,              EP_FOOD_PIG             },
3165     { ep_historic_wall,         EP_HISTORIC_WALL        },
3166     { ep_historic_solid,        EP_HISTORIC_SOLID       },
3167     { ep_classic_enemy,         EP_CLASSIC_ENEMY        },
3168     { ep_belt,                  EP_BELT                 },
3169     { ep_belt_active,           EP_BELT_ACTIVE          },
3170     { ep_belt_switch,           EP_BELT_SWITCH          },
3171     { ep_tube,                  EP_TUBE                 },
3172     { ep_keygate,               EP_KEYGATE              },
3173     { ep_amoeboid,              EP_AMOEBOID             },
3174     { ep_amoebalive,            EP_AMOEBALIVE           },
3175     { ep_has_content,           EP_HAS_CONTENT          },
3176     { ep_can_turn_each_move,    EP_CAN_TURN_EACH_MOVE   },
3177     { ep_can_grow,              EP_CAN_GROW             },
3178     { ep_active_bomb,           EP_ACTIVE_BOMB          },
3179     { ep_inactive,              EP_INACTIVE             },
3180
3181     { ep_em_slippery_wall,      EP_EM_SLIPPERY_WALL     },
3182
3183     { ep_gfx_crumbled,          EP_GFX_CRUMBLED         },
3184
3185     { NULL,                     -1                      }
3186   };
3187
3188   static int copy_properties[][5] =
3189   {
3190     {
3191       EL_BUG,
3192       EL_BUG_LEFT,              EL_BUG_RIGHT,
3193       EL_BUG_UP,                EL_BUG_DOWN
3194     },
3195     {
3196       EL_SPACESHIP,
3197       EL_SPACESHIP_LEFT,        EL_SPACESHIP_RIGHT,
3198       EL_SPACESHIP_UP,          EL_SPACESHIP_DOWN
3199     },
3200     {
3201       EL_BD_BUTTERFLY,
3202       EL_BD_BUTTERFLY_LEFT,     EL_BD_BUTTERFLY_RIGHT,
3203       EL_BD_BUTTERFLY_UP,       EL_BD_BUTTERFLY_DOWN
3204     },
3205     {
3206       EL_BD_FIREFLY,
3207       EL_BD_FIREFLY_LEFT,       EL_BD_FIREFLY_RIGHT,
3208       EL_BD_FIREFLY_UP,         EL_BD_FIREFLY_DOWN
3209     },
3210     {
3211       EL_PACMAN,
3212       EL_PACMAN_LEFT,           EL_PACMAN_RIGHT,
3213       EL_PACMAN_UP,             EL_PACMAN_DOWN
3214     },
3215     {
3216       EL_MOLE,
3217       EL_MOLE_LEFT,             EL_MOLE_RIGHT,
3218       EL_MOLE_UP,               EL_MOLE_DOWN
3219     },
3220     {
3221       -1,
3222       -1, -1, -1, -1
3223     }
3224   };
3225
3226   int i, j, k;
3227
3228   /* always start with reliable default values (element has no properties) */
3229   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3230     for (j = 0; j < NUM_ELEMENT_PROPERTIES; j++)
3231       SET_PROPERTY(i, j, FALSE);
3232
3233   /* set all base element properties from above array definitions */
3234   for (i = 0; element_properties[i].elements != NULL; i++)
3235     for (j = 0; (element_properties[i].elements)[j] != -1; j++)
3236       SET_PROPERTY((element_properties[i].elements)[j],
3237                    element_properties[i].property, TRUE);
3238
3239   /* copy properties to some elements that are only stored in level file */
3240   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
3241     for (j = 0; copy_properties[j][0] != -1; j++)
3242       if (HAS_PROPERTY(copy_properties[j][0], i))
3243         for (k = 1; k <= 4; k++)
3244           SET_PROPERTY(copy_properties[j][k], i, TRUE);
3245 }
3246
3247 void InitElementPropertiesEngine(int engine_version)
3248 {
3249 #if 0
3250   static int active_properties[] =
3251   {
3252     EP_AMOEBALIVE,
3253     EP_AMOEBOID,
3254     EP_PFORTE,
3255     EP_DONT_COLLIDE_WITH,
3256     EP_MAUER,
3257     EP_CAN_FALL,
3258     EP_CAN_SMASH,
3259     EP_CAN_PASS_MAGIC_WALL,
3260     EP_CAN_MOVE,
3261     EP_DONT_TOUCH,
3262     EP_DONT_RUN_INTO,
3263     EP_GEM,
3264     EP_EXPLODES_BY_FIRE,
3265     EP_PUSHABLE,
3266     EP_PLAYER,
3267     EP_HAS_CONTENT,
3268     EP_DIGGABLE,
3269     EP_PASSABLE_INSIDE,
3270     EP_OVER_PLAYER,
3271     EP_ACTIVE_BOMB,
3272
3273     EP_BELT,
3274     EP_BELT_ACTIVE,
3275     EP_BELT_SWITCH,
3276     EP_WALKABLE_UNDER,
3277     EP_EM_SLIPPERY_WALL,
3278   };
3279 #endif
3280
3281   static int no_wall_properties[] =
3282   {
3283     EP_DIGGABLE,
3284     EP_COLLECTIBLE_ONLY,
3285     EP_DONT_RUN_INTO,
3286     EP_DONT_COLLIDE_WITH,
3287     EP_CAN_MOVE,
3288     EP_CAN_FALL,
3289     EP_CAN_SMASH_PLAYER,
3290     EP_CAN_SMASH_ENEMIES,
3291     EP_CAN_SMASH_EVERYTHING,
3292     EP_PUSHABLE,
3293
3294     EP_PLAYER,
3295     EP_GEM,
3296     EP_FOOD_DARK_YAMYAM,
3297     EP_FOOD_PENGUIN,
3298     EP_BELT,
3299     EP_BELT_ACTIVE,
3300     EP_TUBE,
3301     EP_AMOEBOID,
3302     EP_AMOEBALIVE,
3303     EP_ACTIVE_BOMB,
3304
3305     EP_ACCESSIBLE,
3306
3307     -1
3308   };
3309
3310   int i, j;
3311
3312 #if 0
3313   InitElementPropertiesStatic();
3314 #endif
3315
3316   /* important: after initialization in InitElementPropertiesStatic(), the
3317      elements are not again initialized to a default value; therefore all
3318      changes have to make sure that they leave the element with a defined
3319      property (which means that conditional property changes must be set to
3320      a reliable default value before) */
3321
3322   /* set all special, combined or engine dependent element properties */
3323   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3324   {
3325 #if 0
3326     for (j = EP_ACCESSIBLE_OVER; j < NUM_ELEMENT_PROPERTIES; j++)
3327       SET_PROPERTY(i, j, FALSE);
3328 #endif
3329
3330     /* ---------- INACTIVE ------------------------------------------------- */
3331     SET_PROPERTY(i, EP_INACTIVE, (i >= EL_CHAR_START && i <= EL_CHAR_END));
3332
3333     /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
3334     SET_PROPERTY(i, EP_WALKABLE, (IS_WALKABLE_OVER(i) ||
3335                                   IS_WALKABLE_INSIDE(i) ||
3336                                   IS_WALKABLE_UNDER(i)));
3337
3338     SET_PROPERTY(i, EP_PASSABLE, (IS_PASSABLE_OVER(i) ||
3339                                   IS_PASSABLE_INSIDE(i) ||
3340                                   IS_PASSABLE_UNDER(i)));
3341
3342     SET_PROPERTY(i, EP_ACCESSIBLE_OVER, (IS_WALKABLE_OVER(i) ||
3343                                          IS_PASSABLE_OVER(i)));
3344
3345     SET_PROPERTY(i, EP_ACCESSIBLE_INSIDE, (IS_WALKABLE_INSIDE(i) ||
3346                                            IS_PASSABLE_INSIDE(i)));
3347
3348     SET_PROPERTY(i, EP_ACCESSIBLE_UNDER, (IS_WALKABLE_UNDER(i) ||
3349                                           IS_PASSABLE_UNDER(i)));
3350
3351     SET_PROPERTY(i, EP_ACCESSIBLE, (IS_WALKABLE(i) ||
3352                                     IS_PASSABLE(i)));
3353
3354     /* ---------- COLLECTIBLE ---------------------------------------------- */
3355     SET_PROPERTY(i, EP_COLLECTIBLE, (IS_COLLECTIBLE_ONLY(i) ||
3356                                      IS_DROPPABLE(i) ||
3357                                      IS_THROWABLE(i)));
3358
3359     /* ---------- SNAPPABLE ------------------------------------------------ */
3360     SET_PROPERTY(i, EP_SNAPPABLE, (IS_DIGGABLE(i) ||
3361                                    IS_COLLECTIBLE(i) ||
3362                                    IS_SWITCHABLE(i) ||
3363                                    i == EL_BD_ROCK));
3364
3365     /* ---------- WALL ----------------------------------------------------- */
3366     SET_PROPERTY(i, EP_WALL, TRUE);     /* default: element is wall */
3367
3368     for (j = 0; no_wall_properties[j] != -1; j++)
3369       if (HAS_PROPERTY(i, no_wall_properties[j]) ||
3370           i >= EL_FIRST_RUNTIME_UNREAL)
3371         SET_PROPERTY(i, EP_WALL, FALSE);
3372
3373     if (IS_HISTORIC_WALL(i))
3374       SET_PROPERTY(i, EP_WALL, TRUE);
3375
3376     /* ---------- SOLID_FOR_PUSHING ---------------------------------------- */
3377     if (engine_version < VERSION_IDENT(2,2,0,0))
3378       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, IS_HISTORIC_SOLID(i));
3379     else
3380       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, (!IS_WALKABLE(i) &&
3381                                              !IS_DIGGABLE(i) &&
3382                                              !IS_COLLECTIBLE(i)));
3383
3384 #if 0
3385     /* ---------- PROTECTED ------------------------------------------------ */
3386     if (IS_ACCESSIBLE_INSIDE(i))
3387       SET_PROPERTY(i, EP_PROTECTED, TRUE);
3388 #endif
3389
3390     /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
3391
3392     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
3393       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
3394     else
3395       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, (IS_CUSTOM_ELEMENT(i) &&
3396                                             IS_INDESTRUCTIBLE(i)));
3397
3398     /* ---------- EXPLOSION_PROOF ------------------------------------------ */
3399     if (i == EL_FLAMES)
3400       SET_PROPERTY(i, EP_EXPLOSION_PROOF, TRUE);
3401     else if (engine_version < VERSION_IDENT(2,2,0,0))
3402       SET_PROPERTY(i, EP_EXPLOSION_PROOF, IS_INDESTRUCTIBLE(i));
3403     else
3404 #if 1
3405       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3406                                            (!IS_WALKABLE(i) ||
3407                                             IS_PROTECTED(i))));
3408 #else
3409 #if 1
3410       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3411                                            !IS_WALKABLE_OVER(i) &&
3412                                            !IS_WALKABLE_UNDER(i)));
3413 #else
3414       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3415                                            IS_PROTECTED(i)));
3416 #endif
3417 #endif
3418
3419     if (IS_CUSTOM_ELEMENT(i))
3420     {
3421       /* these are additional properties which are initially false when set */
3422
3423       /* ---------- DONT_COLLIDE_WITH / DONT_RUN_INTO ---------------------- */
3424       if (DONT_TOUCH(i))
3425         SET_PROPERTY(i, EP_DONT_COLLIDE_WITH, TRUE);
3426       if (DONT_COLLIDE_WITH(i))
3427         SET_PROPERTY(i, EP_DONT_RUN_INTO, TRUE);
3428
3429       /* ---------- CAN_SMASH_ENEMIES / CAN_SMASH_PLAYER ------------------- */
3430       if (CAN_SMASH_EVERYTHING(i))
3431         SET_PROPERTY(i, EP_CAN_SMASH_ENEMIES, TRUE);
3432       if (CAN_SMASH_ENEMIES(i))
3433         SET_PROPERTY(i, EP_CAN_SMASH_PLAYER, TRUE);
3434     }
3435
3436     /* ---------- CAN_SMASH ------------------------------------------------ */
3437     SET_PROPERTY(i, EP_CAN_SMASH, (CAN_SMASH_PLAYER(i) ||
3438                                    CAN_SMASH_ENEMIES(i) ||
3439                                    CAN_SMASH_EVERYTHING(i)));
3440
3441 #if 0
3442     /* ---------- CAN_EXPLODE ---------------------------------------------- */
3443     SET_PROPERTY(i, EP_CAN_EXPLODE, (CAN_EXPLODE_BY_FIRE(i) ||
3444                                      CAN_EXPLODE_SMASHED(i) ||
3445                                      CAN_EXPLODE_IMPACT(i)));
3446 #endif
3447
3448 #if 0
3449     /* ---------- CAN_EXPLODE_3X3 ------------------------------------------ */
3450 #if 0
3451     SET_PROPERTY(i, EP_CAN_EXPLODE_3X3, (!CAN_EXPLODE_1X1(i) &&
3452                                          !CAN_EXPLODE_CROSS(i)));
3453 #else
3454     SET_PROPERTY(i, EP_CAN_EXPLODE_3X3, (CAN_EXPLODE(i) &&
3455                                          !CAN_EXPLODE_1X1(i) &&
3456                                          !CAN_EXPLODE_CROSS(i)));
3457 #endif
3458 #endif
3459
3460     /* ---------- CAN_EXPLODE_BY_FIRE -------------------------------------- */
3461     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_FIRE, (CAN_EXPLODE(i) &&
3462                                              EXPLODES_BY_FIRE(i)));
3463
3464     /* ---------- CAN_EXPLODE_SMASHED -------------------------------------- */
3465     SET_PROPERTY(i, EP_CAN_EXPLODE_SMASHED, (CAN_EXPLODE(i) &&
3466                                              EXPLODES_SMASHED(i)));
3467
3468     /* ---------- CAN_EXPLODE_IMPACT --------------------------------------- */
3469     SET_PROPERTY(i, EP_CAN_EXPLODE_IMPACT, (CAN_EXPLODE(i) &&
3470                                             EXPLODES_IMPACT(i)));
3471
3472     /* ---------- CAN_EXPLODE_BY_DRAGONFIRE -------------------------------- */
3473     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_DRAGONFIRE, CAN_EXPLODE_BY_FIRE(i));
3474
3475     /* ---------- CAN_EXPLODE_BY_EXPLOSION --------------------------------- */
3476     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_EXPLOSION, (CAN_EXPLODE_BY_FIRE(i) ||
3477                                                   i == EL_BLACK_ORB));
3478
3479     /* ---------- COULD_MOVE_INTO_ACID ------------------------------------- */
3480     SET_PROPERTY(i, EP_COULD_MOVE_INTO_ACID, (ELEM_IS_PLAYER(i) ||
3481                                               CAN_MOVE(i) ||
3482                                               IS_CUSTOM_ELEMENT(i)));
3483
3484     /* ---------- MAYBE_DONT_COLLIDE_WITH ---------------------------------- */
3485     SET_PROPERTY(i, EP_MAYBE_DONT_COLLIDE_WITH, (i == EL_SP_SNIKSNAK ||
3486                                                  i == EL_SP_ELECTRON));
3487
3488     /* ---------- CAN_MOVE_INTO_ACID --------------------------------------- */
3489     if (COULD_MOVE_INTO_ACID(i) && !IS_CUSTOM_ELEMENT(i))
3490       SET_PROPERTY(i, EP_CAN_MOVE_INTO_ACID,
3491                    getMoveIntoAcidProperty(&level, i));
3492
3493     /* ---------- DONT_COLLIDE_WITH ---------------------------------------- */
3494     if (MAYBE_DONT_COLLIDE_WITH(i))
3495       SET_PROPERTY(i, EP_DONT_COLLIDE_WITH,
3496                    getDontCollideWithProperty(&level, i));
3497
3498     /* ---------- SP_PORT -------------------------------------------------- */
3499     SET_PROPERTY(i, EP_SP_PORT, (IS_SP_ELEMENT(i) &&
3500                                  IS_PASSABLE_INSIDE(i)));
3501
3502     /* ---------- CAN_CHANGE ----------------------------------------------- */
3503     SET_PROPERTY(i, EP_CAN_CHANGE, FALSE);      /* default: cannot change */
3504     for (j = 0; j < element_info[i].num_change_pages; j++)
3505       if (element_info[i].change_page[j].can_change)
3506         SET_PROPERTY(i, EP_CAN_CHANGE, TRUE);
3507
3508     /* ---------- GFX_CRUMBLED --------------------------------------------- */
3509     SET_PROPERTY(i, EP_GFX_CRUMBLED,
3510                  element_info[i].crumbled[ACTION_DEFAULT] != IMG_EMPTY);
3511   }
3512
3513 #if 0
3514   /* determine inactive elements (used for engine main loop optimization) */
3515   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3516   {
3517     boolean active = FALSE;
3518
3519     for (j = 0; i < NUM_ELEMENT_PROPERTIES; j++)
3520     {
3521       if (HAS_PROPERTY(i, j))
3522         active = TRUE;
3523     }
3524
3525 #if 0
3526     if (!active)
3527       SET_PROPERTY(i, EP_INACTIVE, TRUE);
3528 #endif
3529   }
3530 #endif
3531
3532   /* dynamically adjust element properties according to game engine version */
3533   {
3534     static int ep_em_slippery_wall[] =
3535     {
3536       EL_STEELWALL,
3537       EL_WALL,
3538       EL_EXPANDABLE_WALL,
3539       EL_EXPANDABLE_WALL_HORIZONTAL,
3540       EL_EXPANDABLE_WALL_VERTICAL,
3541       EL_EXPANDABLE_WALL_ANY,
3542       -1
3543     };
3544
3545     /* special EM style gems behaviour */
3546     for (i = 0; ep_em_slippery_wall[i] != -1; i++)
3547       SET_PROPERTY(ep_em_slippery_wall[i], EP_EM_SLIPPERY_WALL,
3548                    level.em_slippery_gems);
3549
3550     /* "EL_EXPANDABLE_WALL_GROWING" wasn't slippery for EM gems in 2.0.1 */
3551     SET_PROPERTY(EL_EXPANDABLE_WALL_GROWING, EP_EM_SLIPPERY_WALL,
3552                  (level.em_slippery_gems &&
3553                   engine_version > VERSION_IDENT(2,0,1,0)));
3554   }
3555
3556 #if 1
3557   /* set default push delay values (corrected since version 3.0.7-1) */
3558   if (engine_version < VERSION_IDENT(3,0,7,1))
3559   {
3560     game.default_push_delay_fixed = 2;
3561     game.default_push_delay_random = 8;
3562   }
3563   else
3564   {
3565     game.default_push_delay_fixed = 8;
3566     game.default_push_delay_random = 8;
3567   }
3568
3569   /* set uninitialized push delay values of custom elements in older levels */
3570   for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
3571   {
3572     int element = EL_CUSTOM_START + i;
3573
3574     if (element_info[element].push_delay_fixed == -1)
3575       element_info[element].push_delay_fixed = game.default_push_delay_fixed;
3576     if (element_info[element].push_delay_random == -1)
3577       element_info[element].push_delay_random = game.default_push_delay_random;
3578   }
3579
3580   /* set some other uninitialized values of custom elements in older levels */
3581   if (engine_version < VERSION_IDENT(3,1,0,0))
3582   {
3583     for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
3584     {
3585       int element = EL_CUSTOM_START + i;
3586
3587       element_info[element].access_direction = MV_ALL_DIRECTIONS;
3588
3589       element_info[element].explosion_delay = 17;
3590       element_info[element].ignition_delay = 8;
3591     }
3592   }
3593
3594 #if 0
3595   /* set element properties that were handled incorrectly in older levels */
3596   if (engine_version < VERSION_IDENT(3,1,0,0))
3597   {
3598     SET_PROPERTY(EL_SP_SNIKSNAK, EP_DONT_COLLIDE_WITH, FALSE);
3599     SET_PROPERTY(EL_SP_ELECTRON, EP_DONT_COLLIDE_WITH, FALSE);
3600   }
3601 #endif
3602
3603 #endif
3604
3605   /* this is needed because some graphics depend on element properties */
3606   if (game_status == GAME_MODE_PLAYING)
3607     InitElementGraphicInfo();
3608 }
3609
3610 static void InitGlobal()
3611 {
3612   global.autoplay_leveldir = NULL;
3613
3614   global.frames_per_second = 0;
3615   global.fps_slowdown = FALSE;
3616   global.fps_slowdown_factor = 1;
3617 }
3618
3619 void Execute_Command(char *command)
3620 {
3621   int i;
3622
3623   if (strcmp(command, "print graphicsinfo.conf") == 0)
3624   {
3625     printf("# You can configure additional/alternative image files here.\n");
3626     printf("# (The entries below are default and therefore commented out.)\n");
3627     printf("\n");
3628     printf("%s\n", getFormattedSetupEntry("name", "Classic Graphics"));
3629     printf("\n");
3630     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3631     printf("\n");
3632
3633     for (i = 0; image_config[i].token != NULL; i++)
3634       printf("# %s\n", getFormattedSetupEntry(image_config[i].token,
3635                                               image_config[i].value));
3636
3637     exit(0);
3638   }
3639   else if (strcmp(command, "print soundsinfo.conf") == 0)
3640   {
3641     printf("# You can configure additional/alternative sound files here.\n");
3642     printf("# (The entries below are default and therefore commented out.)\n");
3643     printf("\n");
3644     printf("%s\n", getFormattedSetupEntry("name", "Classic Sounds"));
3645     printf("\n");
3646     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3647     printf("\n");
3648
3649     for (i = 0; sound_config[i].token != NULL; i++)
3650       printf("# %s\n", getFormattedSetupEntry(sound_config[i].token,
3651                                               sound_config[i].value));
3652
3653     exit(0);
3654   }
3655   else if (strcmp(command, "print musicinfo.conf") == 0)
3656   {
3657     printf("# You can configure additional/alternative music files here.\n");
3658     printf("# (The entries below are default and therefore commented out.)\n");
3659     printf("\n");
3660     printf("%s\n", getFormattedSetupEntry("name", "Classic Music"));
3661     printf("\n");
3662     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3663     printf("\n");
3664
3665     for (i = 0; music_config[i].token != NULL; i++)
3666       printf("# %s\n", getFormattedSetupEntry(music_config[i].token,
3667                                               music_config[i].value));
3668
3669     exit(0);
3670   }
3671   else if (strcmp(command, "print editorsetup.conf") == 0)
3672   {
3673     printf("# You can configure your personal editor element list here.\n");
3674     printf("# (The entries below are default and therefore commented out.)\n");
3675     printf("\n");
3676
3677     PrintEditorElementList();
3678
3679     exit(0);
3680   }
3681   else if (strcmp(command, "print helpanim.conf") == 0)
3682   {
3683     printf("# You can configure different element help animations here.\n");
3684     printf("# (The entries below are default and therefore commented out.)\n");
3685     printf("\n");
3686
3687     for (i = 0; helpanim_config[i].token != NULL; i++)
3688     {
3689       printf("# %s\n", getFormattedSetupEntry(helpanim_config[i].token,
3690                                               helpanim_config[i].value));
3691
3692       if (strcmp(helpanim_config[i].token, "end") == 0)
3693         printf("#\n");
3694     }
3695
3696     exit(0);
3697   }
3698   else if (strcmp(command, "print helptext.conf") == 0)
3699   {
3700     printf("# You can configure different element help text here.\n");
3701     printf("# (The entries below are default and therefore commented out.)\n");
3702     printf("\n");
3703
3704     for (i = 0; helptext_config[i].token != NULL; i++)
3705       printf("# %s\n", getFormattedSetupEntry(helptext_config[i].token,
3706                                               helptext_config[i].value));
3707
3708     exit(0);
3709   }
3710   else if (strncmp(command, "dump level ", 11) == 0)
3711   {
3712     char *filename = &command[11];
3713
3714     if (access(filename, F_OK) != 0)
3715       Error(ERR_EXIT, "cannot open file '%s'", filename);
3716
3717     LoadLevelFromFilename(&level, filename);
3718     DumpLevel(&level);
3719
3720     exit(0);
3721   }
3722   else if (strncmp(command, "dump tape ", 10) == 0)
3723   {
3724     char *filename = &command[10];
3725
3726     if (access(filename, F_OK) != 0)
3727       Error(ERR_EXIT, "cannot open file '%s'", filename);
3728
3729     LoadTapeFromFilename(filename);
3730     DumpTape(&tape);
3731
3732     exit(0);
3733   }
3734   else if (strncmp(command, "autoplay ", 9) == 0)
3735   {
3736     char *str_copy = getStringCopy(&command[9]);
3737     char *str_ptr = strchr(str_copy, ' ');
3738
3739     global.autoplay_leveldir = str_copy;
3740     global.autoplay_level_nr = -1;
3741
3742     if (str_ptr != NULL)
3743     {
3744       *str_ptr++ = '\0';                        /* terminate leveldir string */
3745       global.autoplay_level_nr = atoi(str_ptr); /* get level_nr value */
3746     }
3747   }
3748   else
3749   {
3750     Error(ERR_EXIT_HELP, "unrecognized command '%s'", command);
3751   }
3752 }
3753
3754 static void InitSetup()
3755 {
3756   LoadSetup();                                  /* global setup info */
3757
3758   /* set some options from setup file */
3759
3760   if (setup.options.verbose)
3761     options.verbose = TRUE;
3762 }
3763
3764 static void InitPlayerInfo()
3765 {
3766   int i;
3767
3768   /* choose default local player */
3769   local_player = &stored_player[0];
3770
3771   for (i = 0; i < MAX_PLAYERS; i++)
3772     stored_player[i].connected = FALSE;
3773
3774   local_player->connected = TRUE;
3775 }
3776
3777 static void InitArtworkInfo()
3778 {
3779   LoadArtworkInfo();
3780 }
3781
3782 static char *get_string_in_brackets(char *string)
3783 {
3784   char *string_in_brackets = checked_malloc(strlen(string) + 3);
3785
3786   sprintf(string_in_brackets, "[%s]", string);
3787
3788   return string_in_brackets;
3789 }
3790
3791 static char *get_level_id_suffix(int id_nr)
3792 {
3793   char *id_suffix = checked_malloc(1 + 3 + 1);
3794
3795   if (id_nr < 0 || id_nr > 999)
3796     id_nr = 0;
3797
3798   sprintf(id_suffix, ".%03d", id_nr);
3799
3800   return id_suffix;
3801 }
3802
3803 #if 0
3804 static char *get_element_class_token(int element)
3805 {
3806   char *element_class_name = element_info[element].class_name;
3807   char *element_class_token = checked_malloc(strlen(element_class_name) + 3);
3808
3809   sprintf(element_class_token, "[%s]", element_class_name);
3810
3811   return element_class_token;
3812 }
3813
3814 static char *get_action_class_token(int action)
3815 {
3816   char *action_class_name = &element_action_info[action].suffix[1];
3817   char *action_class_token = checked_malloc(strlen(action_class_name) + 3);
3818
3819   sprintf(action_class_token, "[%s]", action_class_name);
3820
3821   return action_class_token;
3822 }
3823 #endif
3824
3825 static void InitArtworkConfig()
3826 {
3827   static char *image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS + 1];
3828   static char *sound_id_prefix[2 * MAX_NUM_ELEMENTS + 1];
3829   static char *music_id_prefix[NUM_MUSIC_PREFIXES + 1];
3830   static char *action_id_suffix[NUM_ACTIONS + 1];
3831   static char *direction_id_suffix[NUM_DIRECTIONS + 1];
3832   static char *special_id_suffix[NUM_SPECIAL_GFX_ARGS + 1];
3833   static char *level_id_suffix[MAX_LEVELS + 1];
3834   static char *dummy[1] = { NULL };
3835   static char *ignore_generic_tokens[] =
3836   {
3837     "name",
3838     "sort_priority",
3839     NULL
3840   };
3841   static char **ignore_image_tokens;
3842   static char **ignore_sound_tokens;
3843   static char **ignore_music_tokens;
3844   int num_ignore_generic_tokens;
3845   int num_ignore_image_tokens;
3846   int num_ignore_sound_tokens;
3847   int num_ignore_music_tokens;
3848   int i;
3849
3850   /* dynamically determine list of generic tokens to be ignored */
3851   num_ignore_generic_tokens = 0;
3852   for (i = 0; ignore_generic_tokens[i] != NULL; i++)
3853     num_ignore_generic_tokens++;
3854
3855   /* dynamically determine list of image tokens to be ignored */
3856   num_ignore_image_tokens = num_ignore_generic_tokens;
3857   for (i = 0; image_config_vars[i].token != NULL; i++)
3858     num_ignore_image_tokens++;
3859   ignore_image_tokens =
3860     checked_malloc((num_ignore_image_tokens + 1) * sizeof(char *));
3861   for (i = 0; i < num_ignore_generic_tokens; i++)
3862     ignore_image_tokens[i] = ignore_generic_tokens[i];
3863   for (i = 0; i < num_ignore_image_tokens - num_ignore_generic_tokens; i++)
3864     ignore_image_tokens[num_ignore_generic_tokens + i] =
3865       image_config_vars[i].token;
3866   ignore_image_tokens[num_ignore_image_tokens] = NULL;
3867
3868   /* dynamically determine list of sound tokens to be ignored */
3869   num_ignore_sound_tokens = num_ignore_generic_tokens;
3870   ignore_sound_tokens =
3871     checked_malloc((num_ignore_sound_tokens + 1) * sizeof(char *));
3872   for (i = 0; i < num_ignore_generic_tokens; i++)
3873     ignore_sound_tokens[i] = ignore_generic_tokens[i];
3874   ignore_sound_tokens[num_ignore_sound_tokens] = NULL;
3875
3876   /* dynamically determine list of music tokens to be ignored */
3877   num_ignore_music_tokens = num_ignore_generic_tokens;
3878   ignore_music_tokens =
3879     checked_malloc((num_ignore_music_tokens + 1) * sizeof(char *));
3880   for (i = 0; i < num_ignore_generic_tokens; i++)
3881     ignore_music_tokens[i] = ignore_generic_tokens[i];
3882   ignore_music_tokens[num_ignore_music_tokens] = NULL;
3883
3884   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3885     image_id_prefix[i] = element_info[i].token_name;
3886   for (i = 0; i < NUM_FONTS; i++)
3887     image_id_prefix[MAX_NUM_ELEMENTS + i] = font_info[i].token_name;
3888   image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS] = NULL;
3889
3890   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3891     sound_id_prefix[i] = element_info[i].token_name;
3892   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3893     sound_id_prefix[MAX_NUM_ELEMENTS + i] =
3894       get_string_in_brackets(element_info[i].class_name);
3895   sound_id_prefix[2 * MAX_NUM_ELEMENTS] = NULL;
3896
3897   for (i = 0; i < NUM_MUSIC_PREFIXES; i++)
3898     music_id_prefix[i] = music_prefix_info[i].prefix;
3899   music_id_prefix[MAX_LEVELS] = NULL;
3900
3901   for (i = 0; i < NUM_ACTIONS; i++)
3902     action_id_suffix[i] = element_action_info[i].suffix;
3903   action_id_suffix[NUM_ACTIONS] = NULL;
3904
3905   for (i = 0; i < NUM_DIRECTIONS; i++)
3906     direction_id_suffix[i] = element_direction_info[i].suffix;
3907   direction_id_suffix[NUM_DIRECTIONS] = NULL;
3908
3909   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
3910     special_id_suffix[i] = special_suffix_info[i].suffix;
3911   special_id_suffix[NUM_SPECIAL_GFX_ARGS] = NULL;
3912
3913   for (i = 0; i < MAX_LEVELS; i++)
3914     level_id_suffix[i] = get_level_id_suffix(i);
3915   level_id_suffix[MAX_LEVELS] = NULL;
3916
3917   InitImageList(image_config, NUM_IMAGE_FILES, image_config_suffix,
3918                 image_id_prefix, action_id_suffix, direction_id_suffix,
3919                 special_id_suffix, ignore_image_tokens);
3920   InitSoundList(sound_config, NUM_SOUND_FILES, sound_config_suffix,
3921                 sound_id_prefix, action_id_suffix, dummy,
3922                 special_id_suffix, ignore_sound_tokens);
3923   InitMusicList(music_config, NUM_MUSIC_FILES, music_config_suffix,
3924                 music_id_prefix, special_id_suffix, level_id_suffix,
3925                 dummy, ignore_music_tokens);
3926 }
3927
3928 static void InitMixer()
3929 {
3930   OpenAudio();
3931   StartMixer();
3932 }
3933
3934 void InitGfx()
3935 {
3936   char *filename_font_initial = NULL;
3937   Bitmap *bitmap_font_initial = NULL;
3938   int i, j;
3939
3940   /* determine settings for initial font (for displaying startup messages) */
3941   for (i = 0; image_config[i].token != NULL; i++)
3942   {
3943     for (j = 0; j < NUM_INITIAL_FONTS; j++)
3944     {
3945       char font_token[128];
3946       int len_font_token;
3947
3948       sprintf(font_token, "%s_%d", CONFIG_TOKEN_FONT_INITIAL, j + 1);
3949       len_font_token = strlen(font_token);
3950
3951       if (strcmp(image_config[i].token, font_token) == 0)
3952         filename_font_initial = image_config[i].value;
3953       else if (strlen(image_config[i].token) > len_font_token &&
3954                strncmp(image_config[i].token, font_token, len_font_token) == 0)
3955       {
3956         if (strcmp(&image_config[i].token[len_font_token], ".x") == 0)
3957           font_initial[j].src_x = atoi(image_config[i].value);
3958         else if (strcmp(&image_config[i].token[len_font_token], ".y") == 0)
3959           font_initial[j].src_y = atoi(image_config[i].value);
3960         else if (strcmp(&image_config[i].token[len_font_token], ".width") == 0)
3961           font_initial[j].width = atoi(image_config[i].value);
3962         else if (strcmp(&image_config[i].token[len_font_token],".height") == 0)
3963           font_initial[j].height = atoi(image_config[i].value);
3964       }
3965     }
3966   }
3967
3968   for (j = 0; j < NUM_INITIAL_FONTS; j++)
3969   {
3970     font_initial[j].num_chars = DEFAULT_NUM_CHARS_PER_FONT;
3971     font_initial[j].num_chars_per_line = DEFAULT_NUM_CHARS_PER_LINE;
3972   }
3973
3974   if (filename_font_initial == NULL)    /* should not happen */
3975     Error(ERR_EXIT, "cannot get filename for '%s'", CONFIG_TOKEN_FONT_INITIAL);
3976
3977   /* create additional image buffers for double-buffering */
3978   bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
3979   bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
3980
3981   /* initialize screen properties */
3982   InitGfxFieldInfo(SX, SY, SXSIZE, SYSIZE,
3983                    REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE,
3984                    bitmap_db_field);
3985   InitGfxDoor1Info(DX, DY, DXSIZE, DYSIZE);
3986   InitGfxDoor2Info(VX, VY, VXSIZE, VYSIZE);
3987   InitGfxScrollbufferInfo(FXSIZE, FYSIZE);
3988
3989   bitmap_font_initial = LoadCustomImage(filename_font_initial);
3990
3991   for (j = 0; j < NUM_INITIAL_FONTS; j++)
3992     font_initial[j].bitmap = bitmap_font_initial;
3993
3994   InitFontGraphicInfo();
3995
3996   DrawInitText(getProgramInitString(), 20, FC_YELLOW);
3997   DrawInitText(PROGRAM_COPYRIGHT_STRING, 50, FC_RED);
3998
3999   DrawInitText("Loading graphics:", 120, FC_GREEN);
4000
4001   InitTileClipmasks();
4002 }
4003
4004 void InitGfxBackground()
4005 {
4006   int x, y;
4007
4008   drawto = backbuffer;
4009   fieldbuffer = bitmap_db_field;
4010   SetDrawtoField(DRAW_BACKBUFFER);
4011
4012   BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, backbuffer,
4013              0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
4014   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
4015   ClearRectangle(bitmap_db_door, 0, 0, 3 * DXSIZE, DYSIZE + VYSIZE);
4016
4017   for (x = 0; x < MAX_BUF_XSIZE; x++)
4018     for (y = 0; y < MAX_BUF_YSIZE; y++)
4019       redraw[x][y] = 0;
4020   redraw_tiles = 0;
4021   redraw_mask = REDRAW_ALL;
4022 }
4023
4024 static void InitLevelInfo()
4025 {
4026   LoadLevelInfo();                              /* global level info */
4027   LoadLevelSetup_LastSeries();                  /* last played series info */
4028   LoadLevelSetup_SeriesInfo();                  /* last played level info */
4029 }
4030
4031 void InitLevelArtworkInfo()
4032 {
4033   LoadLevelArtworkInfo();
4034 }
4035
4036 static void InitImages()
4037 {
4038 #if 1
4039   setLevelArtworkDir(artwork.gfx_first);
4040 #endif
4041
4042 #if 0
4043   printf("::: InitImages for '%s' ['%s', '%s'] ['%s', '%s']\n",
4044          leveldir_current->identifier,
4045          artwork.gfx_current_identifier,
4046          artwork.gfx_current->identifier,
4047          leveldir_current->graphics_set,
4048          leveldir_current->graphics_path);
4049 #endif
4050
4051   ReloadCustomImages();
4052
4053   LoadCustomElementDescriptions();
4054   LoadSpecialMenuDesignSettings();
4055
4056   ReinitializeGraphics();
4057 }
4058
4059 static void InitSound(char *identifier)
4060 {
4061   if (identifier == NULL)
4062     identifier = artwork.snd_current->identifier;
4063
4064 #if 1
4065   /* set artwork path to send it to the sound server process */
4066   setLevelArtworkDir(artwork.snd_first);
4067 #endif
4068
4069   InitReloadCustomSounds(identifier);
4070   ReinitializeSounds();
4071 }
4072
4073 static void InitMusic(char *identifier)
4074 {
4075   if (identifier == NULL)
4076     identifier = artwork.mus_current->identifier;
4077
4078 #if 1
4079   /* set artwork path to send it to the sound server process */
4080   setLevelArtworkDir(artwork.mus_first);
4081 #endif
4082
4083   InitReloadCustomMusic(identifier);
4084   ReinitializeMusic();
4085 }
4086
4087 void InitNetworkServer()
4088 {
4089 #if defined(NETWORK_AVALIABLE)
4090   int nr_wanted;
4091 #endif
4092
4093   if (!options.network)
4094     return;
4095
4096 #if defined(NETWORK_AVALIABLE)
4097   nr_wanted = Request("Choose player", REQ_PLAYER | REQ_STAY_CLOSED);
4098
4099   if (!ConnectToServer(options.server_host, options.server_port))
4100     Error(ERR_EXIT, "cannot connect to network game server");
4101
4102   SendToServer_PlayerName(setup.player_name);
4103   SendToServer_ProtocolVersion();
4104
4105   if (nr_wanted)
4106     SendToServer_NrWanted(nr_wanted);
4107 #endif
4108 }
4109
4110 static char *getNewArtworkIdentifier(int type)
4111 {
4112   static char *leveldir_current_identifier[3] = { NULL, NULL, NULL };
4113   static boolean last_override_level_artwork[3] = { FALSE, FALSE, FALSE };
4114   static boolean last_has_level_artwork_set[3] = { FALSE, FALSE, FALSE };
4115   static boolean initialized[3] = { FALSE, FALSE, FALSE };
4116   TreeInfo *artwork_first_node = ARTWORK_FIRST_NODE(artwork, type);
4117   boolean setup_override_artwork = SETUP_OVERRIDE_ARTWORK(setup, type);
4118   char *setup_artwork_set = SETUP_ARTWORK_SET(setup, type);
4119   char *leveldir_identifier = leveldir_current->identifier;
4120 #if 1
4121   /* !!! setLevelArtworkDir() should be moved to an earlier stage !!! */
4122   char *leveldir_artwork_set = setLevelArtworkDir(artwork_first_node);
4123 #else
4124   char *leveldir_artwork_set = LEVELDIR_ARTWORK_SET(leveldir_current, type);
4125 #endif
4126   boolean has_level_artwork_set = (leveldir_artwork_set != NULL);
4127   char *artwork_current_identifier;
4128   char *artwork_new_identifier = NULL;  /* default: nothing has changed */
4129
4130   /* leveldir_current may be invalid (level group, parent link) */
4131   if (!validLevelSeries(leveldir_current))
4132     return NULL;
4133
4134   /* 1st step: determine artwork set to be activated in descending order:
4135      --------------------------------------------------------------------
4136      1. setup artwork (when configured to override everything else)
4137      2. artwork set configured in "levelinfo.conf" of current level set
4138         (artwork in level directory will have priority when loading later)
4139      3. artwork in level directory (stored in artwork sub-directory)
4140      4. setup artwork (currently configured in setup menu) */
4141
4142   if (setup_override_artwork)
4143     artwork_current_identifier = setup_artwork_set;
4144   else if (leveldir_artwork_set != NULL)
4145     artwork_current_identifier = leveldir_artwork_set;
4146   else if (getTreeInfoFromIdentifier(artwork_first_node, leveldir_identifier))
4147     artwork_current_identifier = leveldir_identifier;
4148   else
4149     artwork_current_identifier = setup_artwork_set;
4150
4151
4152   /* 2nd step: check if it is really needed to reload artwork set
4153      ------------------------------------------------------------ */
4154
4155 #if 0
4156   if (type == ARTWORK_TYPE_GRAPHICS)
4157     printf("::: 0: '%s' ['%s', '%s'] ['%s' ('%s')]\n",
4158            artwork_new_identifier,
4159            ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4160            artwork_current_identifier,
4161            leveldir_current->graphics_set,
4162            leveldir_current->identifier);
4163 #endif
4164
4165   /* ---------- reload if level set and also artwork set has changed ------- */
4166   if (leveldir_current_identifier[type] != leveldir_identifier &&
4167       (last_has_level_artwork_set[type] || has_level_artwork_set))
4168     artwork_new_identifier = artwork_current_identifier;
4169
4170   leveldir_current_identifier[type] = leveldir_identifier;
4171   last_has_level_artwork_set[type] = has_level_artwork_set;
4172
4173 #if 0
4174   if (type == ARTWORK_TYPE_GRAPHICS)
4175     printf("::: 1: '%s'\n", artwork_new_identifier);
4176 #endif
4177
4178   /* ---------- reload if "override artwork" setting has changed ----------- */
4179   if (last_override_level_artwork[type] != setup_override_artwork)
4180     artwork_new_identifier = artwork_current_identifier;
4181
4182   last_override_level_artwork[type] = setup_override_artwork;
4183
4184 #if 0
4185   if (type == ARTWORK_TYPE_GRAPHICS)
4186     printf("::: 2: '%s'\n", artwork_new_identifier);
4187 #endif
4188
4189   /* ---------- reload if current artwork identifier has changed ----------- */
4190   if (strcmp(ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4191              artwork_current_identifier) != 0)
4192     artwork_new_identifier = artwork_current_identifier;
4193
4194   *(&(ARTWORK_CURRENT_IDENTIFIER(artwork, type))) = artwork_current_identifier;
4195
4196 #if 0
4197   if (type == ARTWORK_TYPE_GRAPHICS)
4198     printf("::: 3: '%s'\n", artwork_new_identifier);
4199 #endif
4200
4201   /* ---------- do not reload directly after starting ---------------------- */
4202   if (!initialized[type])
4203     artwork_new_identifier = NULL;
4204
4205   initialized[type] = TRUE;
4206
4207 #if 0
4208   if (type == ARTWORK_TYPE_GRAPHICS)
4209     printf("::: 4: '%s'\n", artwork_new_identifier);
4210 #endif
4211
4212 #if 0
4213   if (type == ARTWORK_TYPE_GRAPHICS)
4214     printf("CHECKING OLD/NEW GFX:\n- OLD: %s\n- NEW: %s ['%s', '%s'] ['%s']\n",
4215            artwork.gfx_current_identifier, artwork_current_identifier,
4216            artwork.gfx_current->identifier, leveldir_current->graphics_set,
4217            artwork_new_identifier);
4218 #endif
4219
4220   return artwork_new_identifier;
4221 }
4222
4223 void ReloadCustomArtwork(int force_reload)
4224 {
4225   char *gfx_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_GRAPHICS);
4226   char *snd_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_SOUNDS);
4227   char *mus_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_MUSIC);
4228   boolean force_reload_gfx = (force_reload & (1 << ARTWORK_TYPE_GRAPHICS));
4229   boolean force_reload_snd = (force_reload & (1 << ARTWORK_TYPE_SOUNDS));
4230   boolean force_reload_mus = (force_reload & (1 << ARTWORK_TYPE_MUSIC));
4231   boolean redraw_screen = FALSE;
4232
4233   if (gfx_new_identifier != NULL || force_reload_gfx)
4234   {
4235 #if 0
4236     printf("RELOADING GRAPHICS '%s' -> '%s' ['%s', '%s']\n",
4237            artwork.gfx_current_identifier,
4238            gfx_new_identifier,
4239            artwork.gfx_current->identifier,
4240            leveldir_current->graphics_set);
4241 #endif
4242
4243     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4244
4245     InitImages();
4246
4247 #if 0
4248     printf("... '%s'\n",
4249            leveldir_current->graphics_set);
4250 #endif
4251
4252     FreeTileClipmasks();
4253     InitTileClipmasks();
4254
4255     redraw_screen = TRUE;
4256   }
4257
4258   if (snd_new_identifier != NULL || force_reload_snd)
4259   {
4260     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4261
4262     InitSound(snd_new_identifier);
4263
4264     redraw_screen = TRUE;
4265   }
4266
4267   if (mus_new_identifier != NULL || force_reload_mus)
4268   {
4269     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4270
4271     InitMusic(mus_new_identifier);
4272
4273     redraw_screen = TRUE;
4274   }
4275
4276   if (redraw_screen)
4277   {
4278     InitGfxBackground();
4279
4280     /* force redraw of (open or closed) door graphics */
4281     SetDoorState(DOOR_OPEN_ALL);
4282     CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
4283   }
4284 }
4285
4286 void KeyboardAutoRepeatOffUnlessAutoplay()
4287 {
4288   if (global.autoplay_leveldir == NULL)
4289     KeyboardAutoRepeatOff();
4290 }
4291
4292
4293 /* ========================================================================= */
4294 /* OpenAll()                                                                 */
4295 /* ========================================================================= */
4296
4297 void OpenAll()
4298 {
4299   InitGlobal();         /* initialize some global variables */
4300
4301   if (options.execute_command)
4302     Execute_Command(options.execute_command);
4303
4304   if (options.serveronly)
4305   {
4306 #if defined(PLATFORM_UNIX)
4307     NetworkServer(options.server_port, options.serveronly);
4308 #else
4309     Error(ERR_WARN, "networking only supported in Unix version");
4310 #endif
4311     exit(0);    /* never reached */
4312   }
4313
4314   InitSetup();
4315
4316   InitPlayerInfo();
4317   InitArtworkInfo();            /* needed before loading gfx, sound & music */
4318   InitArtworkConfig();          /* needed before forking sound child process */
4319   InitMixer();
4320
4321   InitCounter();
4322
4323   InitRND(NEW_RANDOMIZE);
4324   InitSimpleRND(NEW_RANDOMIZE);
4325
4326   InitJoysticks();
4327
4328   InitVideoDisplay();
4329   InitVideoBuffer(&backbuffer, &window, WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH,
4330                   setup.fullscreen);
4331
4332   InitEventFilter(FilterMouseMotionEvents);
4333
4334   InitElementPropertiesStatic();
4335   InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
4336
4337   InitGfx();
4338
4339   InitLevelInfo();
4340   InitLevelArtworkInfo();
4341
4342   InitImages();                 /* needs to know current level directory */
4343   InitSound(NULL);              /* needs to know current level directory */
4344   InitMusic(NULL);              /* needs to know current level directory */
4345
4346   InitGfxBackground();
4347
4348   if (global.autoplay_leveldir)
4349   {
4350     AutoPlayTape();
4351     return;
4352   }
4353
4354   game_status = GAME_MODE_MAIN;
4355
4356   DrawMainMenu();
4357
4358   InitNetworkServer();
4359 }
4360
4361 void CloseAllAndExit(int exit_value)
4362 {
4363   StopSounds();
4364   FreeAllSounds();
4365   FreeAllMusic();
4366   CloseAudio();         /* called after freeing sounds (needed for SDL) */
4367
4368   FreeAllImages();
4369   FreeTileClipmasks();
4370
4371 #if defined(TARGET_SDL)
4372   if (network_server)   /* terminate network server */
4373     SDL_KillThread(server_thread);
4374 #endif
4375
4376   CloseVideoDisplay();
4377   ClosePlatformDependentStuff();
4378
4379   exit(exit_value);
4380 }