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_player[] =
2330   {
2331     EL_PLAYER_1,
2332     EL_PLAYER_2,
2333     EL_PLAYER_3,
2334     EL_PLAYER_4,
2335     EL_SP_MURPHY,
2336     EL_SOKOBAN_FIELD_PLAYER,
2337     EL_TRIGGER_PLAYER,
2338     -1
2339   };
2340
2341   static int ep_can_pass_magic_wall[] =
2342   {
2343     EL_ROCK,
2344     EL_BD_ROCK,
2345     EL_EMERALD,
2346     EL_BD_DIAMOND,
2347     EL_EMERALD_YELLOW,
2348     EL_EMERALD_RED,
2349     EL_EMERALD_PURPLE,
2350     EL_DIAMOND,
2351     -1
2352   };
2353
2354   static int ep_switchable[] =
2355   {
2356     EL_ROBOT_WHEEL,
2357     EL_SP_TERMINAL,
2358     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2359     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2360     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2361     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2362     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2363     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2364     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2365     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2366     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2367     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2368     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2369     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2370     EL_SWITCHGATE_SWITCH_UP,
2371     EL_SWITCHGATE_SWITCH_DOWN,
2372     EL_LIGHT_SWITCH,
2373     EL_LIGHT_SWITCH_ACTIVE,
2374     EL_TIMEGATE_SWITCH,
2375     EL_BALLOON_SWITCH_LEFT,
2376     EL_BALLOON_SWITCH_RIGHT,
2377     EL_BALLOON_SWITCH_UP,
2378     EL_BALLOON_SWITCH_DOWN,
2379     EL_BALLOON_SWITCH_ANY,
2380     EL_LAMP,
2381     EL_TIME_ORB_FULL,
2382     -1
2383   };
2384
2385   static int ep_bd_element[] =
2386   {
2387     EL_EMPTY,
2388     EL_SAND,
2389     EL_WALL_SLIPPERY,
2390     EL_BD_WALL,
2391     EL_ROCK,
2392     EL_BD_ROCK,
2393     EL_BD_DIAMOND,
2394     EL_BD_MAGIC_WALL,
2395     EL_EXIT_CLOSED,
2396     EL_EXIT_OPEN,
2397     EL_STEELWALL,
2398     EL_PLAYER_1,
2399     EL_PLAYER_2,
2400     EL_PLAYER_3,
2401     EL_PLAYER_4,
2402     EL_BD_FIREFLY,
2403     EL_BD_FIREFLY_1,
2404     EL_BD_FIREFLY_2,
2405     EL_BD_FIREFLY_3,
2406     EL_BD_FIREFLY_4,
2407     EL_BD_BUTTERFLY,
2408     EL_BD_BUTTERFLY_1,
2409     EL_BD_BUTTERFLY_2,
2410     EL_BD_BUTTERFLY_3,
2411     EL_BD_BUTTERFLY_4,
2412     EL_BD_AMOEBA,
2413     EL_CHAR_QUESTION,
2414     EL_UNKNOWN,
2415     -1
2416   };
2417
2418   static int ep_sp_element[] =
2419   {
2420     /* should always be valid */
2421     EL_EMPTY,
2422
2423     EL_SP_EMPTY,
2424     EL_SP_ZONK,
2425     EL_SP_BASE,
2426     EL_SP_MURPHY,
2427     EL_SP_INFOTRON,
2428     EL_SP_CHIP_SINGLE,
2429     EL_SP_HARDWARE_GRAY,
2430     EL_SP_EXIT_CLOSED,
2431     EL_SP_EXIT_OPEN,
2432     EL_SP_DISK_ORANGE,
2433     EL_SP_PORT_RIGHT,
2434     EL_SP_PORT_DOWN,
2435     EL_SP_PORT_LEFT,
2436     EL_SP_PORT_UP,
2437     EL_SP_GRAVITY_PORT_RIGHT,
2438     EL_SP_GRAVITY_PORT_DOWN,
2439     EL_SP_GRAVITY_PORT_LEFT,
2440     EL_SP_GRAVITY_PORT_UP,
2441     EL_SP_SNIKSNAK,
2442     EL_SP_DISK_YELLOW,
2443     EL_SP_TERMINAL,
2444     EL_SP_DISK_RED,
2445     EL_SP_PORT_VERTICAL,
2446     EL_SP_PORT_HORIZONTAL,
2447     EL_SP_PORT_ANY,
2448     EL_SP_ELECTRON,
2449     EL_SP_BUGGY_BASE,
2450     EL_SP_CHIP_LEFT,
2451     EL_SP_CHIP_RIGHT,
2452     EL_SP_HARDWARE_BASE_1,
2453     EL_SP_HARDWARE_GREEN,
2454     EL_SP_HARDWARE_BLUE,
2455     EL_SP_HARDWARE_RED,
2456     EL_SP_HARDWARE_YELLOW,
2457     EL_SP_HARDWARE_BASE_2,
2458     EL_SP_HARDWARE_BASE_3,
2459     EL_SP_HARDWARE_BASE_4,
2460     EL_SP_HARDWARE_BASE_5,
2461     EL_SP_HARDWARE_BASE_6,
2462     EL_SP_CHIP_TOP,
2463     EL_SP_CHIP_BOTTOM,
2464     /* additional elements that appeared in newer Supaplex levels */
2465     EL_INVISIBLE_WALL,
2466     /* more than one murphy in a level results in an inactive clone */
2467     EL_SP_MURPHY_CLONE,
2468     /* runtime elements*/
2469     EL_SP_DISK_RED_ACTIVE,
2470     EL_SP_TERMINAL_ACTIVE,
2471     EL_SP_BUGGY_BASE_ACTIVATING,
2472     EL_SP_BUGGY_BASE_ACTIVE,
2473     EL_SP_EXIT_OPENING,
2474     EL_SP_EXIT_CLOSING,
2475     -1
2476   };
2477
2478   static int ep_sb_element[] =
2479   {
2480     EL_EMPTY,
2481     EL_STEELWALL,
2482     EL_SOKOBAN_OBJECT,
2483     EL_SOKOBAN_FIELD_EMPTY,
2484     EL_SOKOBAN_FIELD_FULL,
2485     EL_SOKOBAN_FIELD_PLAYER,
2486     EL_PLAYER_1,
2487     EL_PLAYER_2,
2488     EL_PLAYER_3,
2489     EL_PLAYER_4,
2490     EL_INVISIBLE_STEELWALL,
2491     -1
2492   };
2493
2494   static int ep_sp_buggy_base[] =
2495   {
2496     EL_SP_BUGGY_BASE,
2497     EL_SP_BUGGY_BASE_ACTIVATING,
2498     EL_SP_BUGGY_BASE_ACTIVE,
2499     -1
2500   };
2501
2502   static int ep_gem[] =
2503   {
2504     EL_BD_DIAMOND,
2505     EL_EMERALD,
2506     EL_EMERALD_YELLOW,
2507     EL_EMERALD_RED,
2508     EL_EMERALD_PURPLE,
2509     EL_DIAMOND,
2510     -1
2511   };
2512
2513   static int ep_food_dark_yamyam[] =
2514   {
2515     EL_SAND,
2516     EL_BUG,
2517     EL_SPACESHIP,
2518     EL_BD_BUTTERFLY,
2519     EL_BD_FIREFLY,
2520     EL_YAMYAM,
2521     EL_ROBOT,
2522     EL_PACMAN,
2523     EL_AMOEBA_DROP,
2524     EL_AMOEBA_DEAD,
2525     EL_AMOEBA_WET,
2526     EL_AMOEBA_DRY,
2527     EL_AMOEBA_FULL,
2528     EL_BD_AMOEBA,
2529     EL_EMERALD,
2530     EL_BD_DIAMOND,
2531     EL_EMERALD_YELLOW,
2532     EL_EMERALD_RED,
2533     EL_EMERALD_PURPLE,
2534     EL_DIAMOND,
2535     EL_PEARL,
2536     EL_CRYSTAL,
2537     -1
2538   };
2539
2540   static int ep_food_penguin[] =
2541   {
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_pig[] =
2554   {
2555     EL_EMERALD,
2556     EL_BD_DIAMOND,
2557     EL_EMERALD_YELLOW,
2558     EL_EMERALD_RED,
2559     EL_EMERALD_PURPLE,
2560     EL_DIAMOND,
2561     -1
2562   };
2563
2564   static int ep_historic_wall[] =
2565   {
2566     EL_STEELWALL,
2567     EL_GATE_1,
2568     EL_GATE_2,
2569     EL_GATE_3,
2570     EL_GATE_4,
2571     EL_GATE_1_GRAY,
2572     EL_GATE_2_GRAY,
2573     EL_GATE_3_GRAY,
2574     EL_GATE_4_GRAY,
2575     EL_EM_GATE_1,
2576     EL_EM_GATE_2,
2577     EL_EM_GATE_3,
2578     EL_EM_GATE_4,
2579     EL_EM_GATE_1_GRAY,
2580     EL_EM_GATE_2_GRAY,
2581     EL_EM_GATE_3_GRAY,
2582     EL_EM_GATE_4_GRAY,
2583     EL_EXIT_CLOSED,
2584     EL_EXIT_OPENING,
2585     EL_EXIT_OPEN,
2586     EL_WALL,
2587     EL_WALL_SLIPPERY,
2588     EL_EXPANDABLE_WALL,
2589     EL_EXPANDABLE_WALL_HORIZONTAL,
2590     EL_EXPANDABLE_WALL_VERTICAL,
2591     EL_EXPANDABLE_WALL_ANY,
2592     EL_EXPANDABLE_WALL_GROWING,
2593     EL_BD_WALL,
2594     EL_SP_CHIP_SINGLE,
2595     EL_SP_CHIP_LEFT,
2596     EL_SP_CHIP_RIGHT,
2597     EL_SP_CHIP_TOP,
2598     EL_SP_CHIP_BOTTOM,
2599     EL_SP_HARDWARE_GRAY,
2600     EL_SP_HARDWARE_GREEN,
2601     EL_SP_HARDWARE_BLUE,
2602     EL_SP_HARDWARE_RED,
2603     EL_SP_HARDWARE_YELLOW,
2604     EL_SP_HARDWARE_BASE_1,
2605     EL_SP_HARDWARE_BASE_2,
2606     EL_SP_HARDWARE_BASE_3,
2607     EL_SP_HARDWARE_BASE_4,
2608     EL_SP_HARDWARE_BASE_5,
2609     EL_SP_HARDWARE_BASE_6,
2610     EL_SP_TERMINAL,
2611     EL_SP_TERMINAL_ACTIVE,
2612     EL_SP_EXIT_CLOSED,
2613     EL_SP_EXIT_OPEN,
2614     EL_INVISIBLE_STEELWALL,
2615     EL_INVISIBLE_STEELWALL_ACTIVE,
2616     EL_INVISIBLE_WALL,
2617     EL_INVISIBLE_WALL_ACTIVE,
2618     EL_STEELWALL_SLIPPERY,
2619     EL_EMC_STEELWALL_1,
2620     EL_EMC_STEELWALL_2,
2621     EL_EMC_STEELWALL_3,
2622     EL_EMC_STEELWALL_4,
2623     EL_EMC_WALL_1,
2624     EL_EMC_WALL_2,
2625     EL_EMC_WALL_3,
2626     EL_EMC_WALL_4,
2627     EL_EMC_WALL_5,
2628     EL_EMC_WALL_6,
2629     EL_EMC_WALL_7,
2630     EL_EMC_WALL_8,
2631     -1
2632   };
2633
2634   static int ep_historic_solid[] =
2635   {
2636     EL_WALL,
2637     EL_EXPANDABLE_WALL,
2638     EL_EXPANDABLE_WALL_HORIZONTAL,
2639     EL_EXPANDABLE_WALL_VERTICAL,
2640     EL_EXPANDABLE_WALL_ANY,
2641     EL_BD_WALL,
2642     EL_WALL_SLIPPERY,
2643     EL_EXIT_CLOSED,
2644     EL_EXIT_OPENING,
2645     EL_EXIT_OPEN,
2646     EL_AMOEBA_DEAD,
2647     EL_AMOEBA_WET,
2648     EL_AMOEBA_DRY,
2649     EL_AMOEBA_FULL,
2650     EL_BD_AMOEBA,
2651     EL_QUICKSAND_EMPTY,
2652     EL_QUICKSAND_FULL,
2653     EL_QUICKSAND_FILLING,
2654     EL_QUICKSAND_EMPTYING,
2655     EL_MAGIC_WALL,
2656     EL_MAGIC_WALL_ACTIVE,
2657     EL_MAGIC_WALL_EMPTYING,
2658     EL_MAGIC_WALL_FILLING,
2659     EL_MAGIC_WALL_FULL,
2660     EL_MAGIC_WALL_DEAD,
2661     EL_BD_MAGIC_WALL,
2662     EL_BD_MAGIC_WALL_ACTIVE,
2663     EL_BD_MAGIC_WALL_EMPTYING,
2664     EL_BD_MAGIC_WALL_FULL,
2665     EL_BD_MAGIC_WALL_FILLING,
2666     EL_BD_MAGIC_WALL_DEAD,
2667     EL_GAME_OF_LIFE,
2668     EL_BIOMAZE,
2669     EL_SP_CHIP_SINGLE,
2670     EL_SP_CHIP_LEFT,
2671     EL_SP_CHIP_RIGHT,
2672     EL_SP_CHIP_TOP,
2673     EL_SP_CHIP_BOTTOM,
2674     EL_SP_TERMINAL,
2675     EL_SP_TERMINAL_ACTIVE,
2676     EL_SP_EXIT_CLOSED,
2677     EL_SP_EXIT_OPEN,
2678     EL_INVISIBLE_WALL,
2679     EL_INVISIBLE_WALL_ACTIVE,
2680     EL_SWITCHGATE_SWITCH_UP,
2681     EL_SWITCHGATE_SWITCH_DOWN,
2682     EL_TIMEGATE_SWITCH,
2683     EL_TIMEGATE_SWITCH_ACTIVE,
2684     EL_EMC_WALL_1,
2685     EL_EMC_WALL_2,
2686     EL_EMC_WALL_3,
2687     EL_EMC_WALL_4,
2688     EL_EMC_WALL_5,
2689     EL_EMC_WALL_6,
2690     EL_EMC_WALL_7,
2691     EL_EMC_WALL_8,
2692     EL_WALL_PEARL,
2693     EL_WALL_CRYSTAL,
2694
2695     /* the following elements are a direct copy of "indestructible" elements,
2696        except "EL_ACID", which is "indestructible", but not "solid"! */
2697 #if 0
2698     EL_ACID,
2699 #endif
2700     EL_STEELWALL,
2701     EL_ACID_POOL_TOPLEFT,
2702     EL_ACID_POOL_TOPRIGHT,
2703     EL_ACID_POOL_BOTTOMLEFT,
2704     EL_ACID_POOL_BOTTOM,
2705     EL_ACID_POOL_BOTTOMRIGHT,
2706     EL_SP_HARDWARE_GRAY,
2707     EL_SP_HARDWARE_GREEN,
2708     EL_SP_HARDWARE_BLUE,
2709     EL_SP_HARDWARE_RED,
2710     EL_SP_HARDWARE_YELLOW,
2711     EL_SP_HARDWARE_BASE_1,
2712     EL_SP_HARDWARE_BASE_2,
2713     EL_SP_HARDWARE_BASE_3,
2714     EL_SP_HARDWARE_BASE_4,
2715     EL_SP_HARDWARE_BASE_5,
2716     EL_SP_HARDWARE_BASE_6,
2717     EL_INVISIBLE_STEELWALL,
2718     EL_INVISIBLE_STEELWALL_ACTIVE,
2719     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2720     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2721     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2722     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2723     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2724     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2725     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2726     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2727     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2728     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2729     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2730     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2731     EL_LIGHT_SWITCH,
2732     EL_LIGHT_SWITCH_ACTIVE,
2733     EL_SIGN_EXCLAMATION,
2734     EL_SIGN_RADIOACTIVITY,
2735     EL_SIGN_STOP,
2736     EL_SIGN_WHEELCHAIR,
2737     EL_SIGN_PARKING,
2738     EL_SIGN_ONEWAY,
2739     EL_SIGN_HEART,
2740     EL_SIGN_TRIANGLE,
2741     EL_SIGN_ROUND,
2742     EL_SIGN_EXIT,
2743     EL_SIGN_YINYANG,
2744     EL_SIGN_OTHER,
2745     EL_STEELWALL_SLIPPERY,
2746     EL_EMC_STEELWALL_1,
2747     EL_EMC_STEELWALL_2,
2748     EL_EMC_STEELWALL_3,
2749     EL_EMC_STEELWALL_4,
2750     EL_CRYSTAL,
2751     EL_GATE_1,
2752     EL_GATE_2,
2753     EL_GATE_3,
2754     EL_GATE_4,
2755     EL_GATE_1_GRAY,
2756     EL_GATE_2_GRAY,
2757     EL_GATE_3_GRAY,
2758     EL_GATE_4_GRAY,
2759     EL_EM_GATE_1,
2760     EL_EM_GATE_2,
2761     EL_EM_GATE_3,
2762     EL_EM_GATE_4,
2763     EL_EM_GATE_1_GRAY,
2764     EL_EM_GATE_2_GRAY,
2765     EL_EM_GATE_3_GRAY,
2766     EL_EM_GATE_4_GRAY,
2767     EL_SWITCHGATE_OPEN,
2768     EL_SWITCHGATE_OPENING,
2769     EL_SWITCHGATE_CLOSED,
2770     EL_SWITCHGATE_CLOSING,
2771     EL_TIMEGATE_OPEN,
2772     EL_TIMEGATE_OPENING,
2773     EL_TIMEGATE_CLOSED,
2774     EL_TIMEGATE_CLOSING,
2775     EL_TUBE_ANY,
2776     EL_TUBE_VERTICAL,
2777     EL_TUBE_HORIZONTAL,
2778     EL_TUBE_VERTICAL_LEFT,
2779     EL_TUBE_VERTICAL_RIGHT,
2780     EL_TUBE_HORIZONTAL_UP,
2781     EL_TUBE_HORIZONTAL_DOWN,
2782     EL_TUBE_LEFT_UP,
2783     EL_TUBE_LEFT_DOWN,
2784     EL_TUBE_RIGHT_UP,
2785     EL_TUBE_RIGHT_DOWN,
2786     -1
2787   };
2788
2789   static int ep_classic_enemy[] =
2790   {
2791     EL_BUG,
2792     EL_SPACESHIP,
2793     EL_BD_BUTTERFLY,
2794     EL_BD_FIREFLY,
2795
2796     EL_YAMYAM,
2797     EL_DARK_YAMYAM,
2798     EL_ROBOT,
2799     EL_PACMAN,
2800     EL_SP_SNIKSNAK,
2801     EL_SP_ELECTRON,
2802     -1
2803   };
2804
2805   static int ep_belt[] =
2806   {
2807     EL_CONVEYOR_BELT_1_LEFT,
2808     EL_CONVEYOR_BELT_1_MIDDLE,
2809     EL_CONVEYOR_BELT_1_RIGHT,
2810     EL_CONVEYOR_BELT_2_LEFT,
2811     EL_CONVEYOR_BELT_2_MIDDLE,
2812     EL_CONVEYOR_BELT_2_RIGHT,
2813     EL_CONVEYOR_BELT_3_LEFT,
2814     EL_CONVEYOR_BELT_3_MIDDLE,
2815     EL_CONVEYOR_BELT_3_RIGHT,
2816     EL_CONVEYOR_BELT_4_LEFT,
2817     EL_CONVEYOR_BELT_4_MIDDLE,
2818     EL_CONVEYOR_BELT_4_RIGHT,
2819     -1
2820   };
2821
2822   static int ep_belt_active[] =
2823   {
2824     EL_CONVEYOR_BELT_1_LEFT_ACTIVE,
2825     EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE,
2826     EL_CONVEYOR_BELT_1_RIGHT_ACTIVE,
2827     EL_CONVEYOR_BELT_2_LEFT_ACTIVE,
2828     EL_CONVEYOR_BELT_2_MIDDLE_ACTIVE,
2829     EL_CONVEYOR_BELT_2_RIGHT_ACTIVE,
2830     EL_CONVEYOR_BELT_3_LEFT_ACTIVE,
2831     EL_CONVEYOR_BELT_3_MIDDLE_ACTIVE,
2832     EL_CONVEYOR_BELT_3_RIGHT_ACTIVE,
2833     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
2834     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
2835     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
2836     -1
2837   };
2838
2839   static int ep_belt_switch[] =
2840   {
2841     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2842     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2843     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2844     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2845     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2846     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2847     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2848     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2849     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2850     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2851     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2852     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2853     -1
2854   };
2855
2856   static int ep_tube[] =
2857   {
2858     EL_TUBE_LEFT_UP,
2859     EL_TUBE_LEFT_DOWN,
2860     EL_TUBE_RIGHT_UP,
2861     EL_TUBE_RIGHT_DOWN,
2862     EL_TUBE_HORIZONTAL,
2863     EL_TUBE_HORIZONTAL_UP,
2864     EL_TUBE_HORIZONTAL_DOWN,
2865     EL_TUBE_VERTICAL,
2866     EL_TUBE_VERTICAL_LEFT,
2867     EL_TUBE_VERTICAL_RIGHT,
2868     EL_TUBE_ANY,
2869     -1
2870   };
2871
2872   static int ep_keygate[] =
2873   {
2874     EL_GATE_1,
2875     EL_GATE_2,
2876     EL_GATE_3,
2877     EL_GATE_4,
2878     EL_GATE_1_GRAY,
2879     EL_GATE_2_GRAY,
2880     EL_GATE_3_GRAY,
2881     EL_GATE_4_GRAY,
2882     EL_EM_GATE_1,
2883     EL_EM_GATE_2,
2884     EL_EM_GATE_3,
2885     EL_EM_GATE_4,
2886     EL_EM_GATE_1_GRAY,
2887     EL_EM_GATE_2_GRAY,
2888     EL_EM_GATE_3_GRAY,
2889     EL_EM_GATE_4_GRAY,
2890     -1
2891   };
2892
2893   static int ep_amoeboid[] =
2894   {
2895     EL_AMOEBA_DEAD,
2896     EL_AMOEBA_WET,
2897     EL_AMOEBA_DRY,
2898     EL_AMOEBA_FULL,
2899     EL_BD_AMOEBA,
2900     -1
2901   };
2902
2903   static int ep_amoebalive[] =
2904   {
2905     EL_AMOEBA_WET,
2906     EL_AMOEBA_DRY,
2907     EL_AMOEBA_FULL,
2908     EL_BD_AMOEBA,
2909     -1
2910   };
2911
2912   static int ep_has_content[] =
2913   {
2914     EL_YAMYAM,
2915     EL_AMOEBA_WET,
2916     EL_AMOEBA_DRY,
2917     EL_AMOEBA_FULL,
2918     EL_BD_AMOEBA,
2919     -1
2920   };
2921
2922   static int ep_can_turn_each_move[] =
2923   {
2924     /* !!! do something with this one !!! */
2925     -1
2926   };
2927
2928   static int ep_can_grow[] =
2929   {
2930     EL_BD_AMOEBA,
2931     EL_AMOEBA_DROP,
2932     EL_AMOEBA_WET,
2933     EL_AMOEBA_DRY,
2934     EL_AMOEBA_FULL,
2935     EL_GAME_OF_LIFE,
2936     EL_BIOMAZE,
2937     -1
2938   };
2939
2940   static int ep_active_bomb[] =
2941   {
2942     EL_DYNAMITE_ACTIVE,
2943     EL_DYNABOMB_PLAYER_1_ACTIVE,
2944     EL_DYNABOMB_PLAYER_2_ACTIVE,
2945     EL_DYNABOMB_PLAYER_3_ACTIVE,
2946     EL_DYNABOMB_PLAYER_4_ACTIVE,
2947     EL_SP_DISK_RED_ACTIVE,
2948     -1
2949   };
2950
2951   static int ep_inactive[] =
2952   {
2953     EL_EMPTY,
2954     EL_SAND,
2955     EL_WALL,
2956     EL_BD_WALL,
2957     EL_WALL_SLIPPERY,
2958     EL_STEELWALL,
2959     EL_AMOEBA_DEAD,
2960     EL_QUICKSAND_EMPTY,
2961     EL_STONEBLOCK,
2962     EL_ROBOT_WHEEL,
2963     EL_KEY_1,
2964     EL_KEY_2,
2965     EL_KEY_3,
2966     EL_KEY_4,
2967     EL_EM_KEY_1,
2968     EL_EM_KEY_2,
2969     EL_EM_KEY_3,
2970     EL_EM_KEY_4,
2971     EL_GATE_1,
2972     EL_GATE_2,
2973     EL_GATE_3,
2974     EL_GATE_4,
2975     EL_GATE_1_GRAY,
2976     EL_GATE_2_GRAY,
2977     EL_GATE_3_GRAY,
2978     EL_GATE_4_GRAY,
2979     EL_EM_GATE_1,
2980     EL_EM_GATE_2,
2981     EL_EM_GATE_3,
2982     EL_EM_GATE_4,
2983     EL_EM_GATE_1_GRAY,
2984     EL_EM_GATE_2_GRAY,
2985     EL_EM_GATE_3_GRAY,
2986     EL_EM_GATE_4_GRAY,
2987     EL_DYNAMITE,
2988     EL_INVISIBLE_STEELWALL,
2989     EL_INVISIBLE_WALL,
2990     EL_INVISIBLE_SAND,
2991     EL_LAMP,
2992     EL_LAMP_ACTIVE,
2993     EL_WALL_EMERALD,
2994     EL_WALL_DIAMOND,
2995     EL_WALL_BD_DIAMOND,
2996     EL_WALL_EMERALD_YELLOW,
2997     EL_DYNABOMB_INCREASE_NUMBER,
2998     EL_DYNABOMB_INCREASE_SIZE,
2999     EL_DYNABOMB_INCREASE_POWER,
3000 #if 0
3001     EL_SOKOBAN_OBJECT,
3002 #endif
3003     EL_SOKOBAN_FIELD_EMPTY,
3004     EL_SOKOBAN_FIELD_FULL,
3005     EL_WALL_EMERALD_RED,
3006     EL_WALL_EMERALD_PURPLE,
3007     EL_ACID_POOL_TOPLEFT,
3008     EL_ACID_POOL_TOPRIGHT,
3009     EL_ACID_POOL_BOTTOMLEFT,
3010     EL_ACID_POOL_BOTTOM,
3011     EL_ACID_POOL_BOTTOMRIGHT,
3012     EL_MAGIC_WALL,
3013     EL_MAGIC_WALL_DEAD,
3014     EL_BD_MAGIC_WALL,
3015     EL_BD_MAGIC_WALL_DEAD,
3016     EL_AMOEBA_TO_DIAMOND,
3017     EL_BLOCKED,
3018     EL_SP_EMPTY,
3019     EL_SP_BASE,
3020     EL_SP_PORT_RIGHT,
3021     EL_SP_PORT_DOWN,
3022     EL_SP_PORT_LEFT,
3023     EL_SP_PORT_UP,
3024     EL_SP_GRAVITY_PORT_RIGHT,
3025     EL_SP_GRAVITY_PORT_DOWN,
3026     EL_SP_GRAVITY_PORT_LEFT,
3027     EL_SP_GRAVITY_PORT_UP,
3028     EL_SP_PORT_HORIZONTAL,
3029     EL_SP_PORT_VERTICAL,
3030     EL_SP_PORT_ANY,
3031     EL_SP_DISK_RED,
3032 #if 0
3033     EL_SP_DISK_YELLOW,
3034 #endif
3035     EL_SP_CHIP_SINGLE,
3036     EL_SP_CHIP_LEFT,
3037     EL_SP_CHIP_RIGHT,
3038     EL_SP_CHIP_TOP,
3039     EL_SP_CHIP_BOTTOM,
3040     EL_SP_HARDWARE_GRAY,
3041     EL_SP_HARDWARE_GREEN,
3042     EL_SP_HARDWARE_BLUE,
3043     EL_SP_HARDWARE_RED,
3044     EL_SP_HARDWARE_YELLOW,
3045     EL_SP_HARDWARE_BASE_1,
3046     EL_SP_HARDWARE_BASE_2,
3047     EL_SP_HARDWARE_BASE_3,
3048     EL_SP_HARDWARE_BASE_4,
3049     EL_SP_HARDWARE_BASE_5,
3050     EL_SP_HARDWARE_BASE_6,
3051     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3052     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3053     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3054     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3055     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3056     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3057     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3058     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3059     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3060     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3061     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3062     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3063     EL_SIGN_EXCLAMATION,
3064     EL_SIGN_RADIOACTIVITY,
3065     EL_SIGN_STOP,
3066     EL_SIGN_WHEELCHAIR,
3067     EL_SIGN_PARKING,
3068     EL_SIGN_ONEWAY,
3069     EL_SIGN_HEART,
3070     EL_SIGN_TRIANGLE,
3071     EL_SIGN_ROUND,
3072     EL_SIGN_EXIT,
3073     EL_SIGN_YINYANG,
3074     EL_SIGN_OTHER,
3075     EL_STEELWALL_SLIPPERY,
3076     EL_EMC_STEELWALL_1,
3077     EL_EMC_STEELWALL_2,
3078     EL_EMC_STEELWALL_3,
3079     EL_EMC_STEELWALL_4,
3080     EL_EMC_WALL_1,
3081     EL_EMC_WALL_2,
3082     EL_EMC_WALL_3,
3083     EL_EMC_WALL_4,
3084     EL_EMC_WALL_5,
3085     EL_EMC_WALL_6,
3086     EL_EMC_WALL_7,
3087     EL_EMC_WALL_8,
3088     -1
3089   };
3090
3091   static int ep_em_slippery_wall[] =
3092   {
3093     -1
3094   };
3095
3096   static int ep_gfx_crumbled[] =
3097   {
3098     EL_SAND,
3099     EL_LANDMINE,
3100     EL_TRAP,
3101     EL_TRAP_ACTIVE,
3102     -1
3103   };
3104
3105   static struct
3106   {
3107     int *elements;
3108     int property;
3109   } element_properties[] =
3110   {
3111     { ep_diggable,              EP_DIGGABLE             },
3112     { ep_collectible_only,      EP_COLLECTIBLE_ONLY     },
3113     { ep_dont_run_into,         EP_DONT_RUN_INTO        },
3114     { ep_dont_collide_with,     EP_DONT_COLLIDE_WITH    },
3115     { ep_dont_touch,            EP_DONT_TOUCH           },
3116     { ep_indestructible,        EP_INDESTRUCTIBLE       },
3117     { ep_slippery,              EP_SLIPPERY             },
3118     { ep_can_change,            EP_CAN_CHANGE           },
3119     { ep_can_move,              EP_CAN_MOVE             },
3120     { ep_can_fall,              EP_CAN_FALL             },
3121     { ep_can_smash_player,      EP_CAN_SMASH_PLAYER     },
3122     { ep_can_smash_enemies,     EP_CAN_SMASH_ENEMIES    },
3123     { ep_can_smash_everything,  EP_CAN_SMASH_EVERYTHING },
3124     { ep_explodes_by_fire,      EP_EXPLODES_BY_FIRE     },
3125     { ep_explodes_smashed,      EP_EXPLODES_SMASHED     },
3126     { ep_explodes_impact,       EP_EXPLODES_IMPACT      },
3127     { ep_walkable_over,         EP_WALKABLE_OVER        },
3128     { ep_walkable_inside,       EP_WALKABLE_INSIDE      },
3129     { ep_walkable_under,        EP_WALKABLE_UNDER       },
3130     { ep_passable_over,         EP_PASSABLE_OVER        },
3131     { ep_passable_inside,       EP_PASSABLE_INSIDE      },
3132     { ep_passable_under,        EP_PASSABLE_UNDER       },
3133     { ep_droppable,             EP_DROPPABLE            },
3134     { ep_explodes_1x1_old,      EP_EXPLODES_1X1_OLD     },
3135     { ep_pushable,              EP_PUSHABLE             },
3136     { ep_explodes_cross_old,    EP_EXPLODES_CROSS_OLD   },
3137     { ep_protected,             EP_PROTECTED            },
3138     { ep_throwable,             EP_THROWABLE            },
3139     { ep_can_explode,           EP_CAN_EXPLODE          },
3140
3141     { ep_player,                EP_PLAYER               },
3142     { ep_can_pass_magic_wall,   EP_CAN_PASS_MAGIC_WALL  },
3143     { ep_switchable,            EP_SWITCHABLE           },
3144     { ep_bd_element,            EP_BD_ELEMENT           },
3145     { ep_sp_element,            EP_SP_ELEMENT           },
3146     { ep_sb_element,            EP_SB_ELEMENT           },
3147     { ep_sp_buggy_base,         EP_SP_BUGGY_BASE        },
3148     { ep_gem,                   EP_GEM                  },
3149     { ep_food_dark_yamyam,      EP_FOOD_DARK_YAMYAM     },
3150     { ep_food_penguin,          EP_FOOD_PENGUIN         },
3151     { ep_food_pig,              EP_FOOD_PIG             },
3152     { ep_historic_wall,         EP_HISTORIC_WALL        },
3153     { ep_historic_solid,        EP_HISTORIC_SOLID       },
3154     { ep_classic_enemy,         EP_CLASSIC_ENEMY        },
3155     { ep_belt,                  EP_BELT                 },
3156     { ep_belt_active,           EP_BELT_ACTIVE          },
3157     { ep_belt_switch,           EP_BELT_SWITCH          },
3158     { ep_tube,                  EP_TUBE                 },
3159     { ep_keygate,               EP_KEYGATE              },
3160     { ep_amoeboid,              EP_AMOEBOID             },
3161     { ep_amoebalive,            EP_AMOEBALIVE           },
3162     { ep_has_content,           EP_HAS_CONTENT          },
3163     { ep_can_turn_each_move,    EP_CAN_TURN_EACH_MOVE   },
3164     { ep_can_grow,              EP_CAN_GROW             },
3165     { ep_active_bomb,           EP_ACTIVE_BOMB          },
3166     { ep_inactive,              EP_INACTIVE             },
3167
3168     { ep_em_slippery_wall,      EP_EM_SLIPPERY_WALL     },
3169
3170     { ep_gfx_crumbled,          EP_GFX_CRUMBLED         },
3171
3172     { NULL,                     -1                      }
3173   };
3174
3175   static int copy_properties[][5] =
3176   {
3177     {
3178       EL_BUG,
3179       EL_BUG_LEFT,              EL_BUG_RIGHT,
3180       EL_BUG_UP,                EL_BUG_DOWN
3181     },
3182     {
3183       EL_SPACESHIP,
3184       EL_SPACESHIP_LEFT,        EL_SPACESHIP_RIGHT,
3185       EL_SPACESHIP_UP,          EL_SPACESHIP_DOWN
3186     },
3187     {
3188       EL_BD_BUTTERFLY,
3189       EL_BD_BUTTERFLY_LEFT,     EL_BD_BUTTERFLY_RIGHT,
3190       EL_BD_BUTTERFLY_UP,       EL_BD_BUTTERFLY_DOWN
3191     },
3192     {
3193       EL_BD_FIREFLY,
3194       EL_BD_FIREFLY_LEFT,       EL_BD_FIREFLY_RIGHT,
3195       EL_BD_FIREFLY_UP,         EL_BD_FIREFLY_DOWN
3196     },
3197     {
3198       EL_PACMAN,
3199       EL_PACMAN_LEFT,           EL_PACMAN_RIGHT,
3200       EL_PACMAN_UP,             EL_PACMAN_DOWN
3201     },
3202     {
3203       EL_MOLE,
3204       EL_MOLE_LEFT,             EL_MOLE_RIGHT,
3205       EL_MOLE_UP,               EL_MOLE_DOWN
3206     },
3207     {
3208       -1,
3209       -1, -1, -1, -1
3210     }
3211   };
3212
3213   int i, j, k;
3214
3215   /* always start with reliable default values (element has no properties) */
3216   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3217     for (j = 0; j < NUM_ELEMENT_PROPERTIES; j++)
3218       SET_PROPERTY(i, j, FALSE);
3219
3220   /* set all base element properties from above array definitions */
3221   for (i = 0; element_properties[i].elements != NULL; i++)
3222     for (j = 0; (element_properties[i].elements)[j] != -1; j++)
3223       SET_PROPERTY((element_properties[i].elements)[j],
3224                    element_properties[i].property, TRUE);
3225
3226   /* copy properties to some elements that are only stored in level file */
3227   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
3228     for (j = 0; copy_properties[j][0] != -1; j++)
3229       if (HAS_PROPERTY(copy_properties[j][0], i))
3230         for (k = 1; k <= 4; k++)
3231           SET_PROPERTY(copy_properties[j][k], i, TRUE);
3232 }
3233
3234 void InitElementPropertiesEngine(int engine_version)
3235 {
3236 #if 0
3237   static int active_properties[] =
3238   {
3239     EP_AMOEBALIVE,
3240     EP_AMOEBOID,
3241     EP_PFORTE,
3242     EP_DONT_COLLIDE_WITH,
3243     EP_MAUER,
3244     EP_CAN_FALL,
3245     EP_CAN_SMASH,
3246     EP_CAN_PASS_MAGIC_WALL,
3247     EP_CAN_MOVE,
3248     EP_DONT_TOUCH,
3249     EP_DONT_RUN_INTO,
3250     EP_GEM,
3251     EP_EXPLODES_BY_FIRE,
3252     EP_PUSHABLE,
3253     EP_PLAYER,
3254     EP_HAS_CONTENT,
3255     EP_DIGGABLE,
3256     EP_PASSABLE_INSIDE,
3257     EP_OVER_PLAYER,
3258     EP_ACTIVE_BOMB,
3259
3260     EP_BELT,
3261     EP_BELT_ACTIVE,
3262     EP_BELT_SWITCH,
3263     EP_WALKABLE_UNDER,
3264     EP_EM_SLIPPERY_WALL,
3265   };
3266 #endif
3267
3268   static int no_wall_properties[] =
3269   {
3270     EP_DIGGABLE,
3271     EP_COLLECTIBLE_ONLY,
3272     EP_DONT_RUN_INTO,
3273     EP_DONT_COLLIDE_WITH,
3274     EP_CAN_MOVE,
3275     EP_CAN_FALL,
3276     EP_CAN_SMASH_PLAYER,
3277     EP_CAN_SMASH_ENEMIES,
3278     EP_CAN_SMASH_EVERYTHING,
3279     EP_PUSHABLE,
3280
3281     EP_PLAYER,
3282     EP_GEM,
3283     EP_FOOD_DARK_YAMYAM,
3284     EP_FOOD_PENGUIN,
3285     EP_BELT,
3286     EP_BELT_ACTIVE,
3287     EP_TUBE,
3288     EP_AMOEBOID,
3289     EP_AMOEBALIVE,
3290     EP_ACTIVE_BOMB,
3291
3292     EP_ACCESSIBLE,
3293
3294     -1
3295   };
3296
3297   int i, j;
3298
3299 #if 0
3300   InitElementPropertiesStatic();
3301 #endif
3302
3303   /* important: after initialization in InitElementPropertiesStatic(), the
3304      elements are not again initialized to a default value; therefore all
3305      changes have to make sure that they leave the element with a defined
3306      property (which means that conditional property changes must be set to
3307      a reliable default value before) */
3308
3309   /* set all special, combined or engine dependent element properties */
3310   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3311   {
3312 #if 0
3313     for (j = EP_ACCESSIBLE_OVER; j < NUM_ELEMENT_PROPERTIES; j++)
3314       SET_PROPERTY(i, j, FALSE);
3315 #endif
3316
3317     /* ---------- INACTIVE ------------------------------------------------- */
3318     SET_PROPERTY(i, EP_INACTIVE, (i >= EL_CHAR_START && i <= EL_CHAR_END));
3319
3320     /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
3321     SET_PROPERTY(i, EP_WALKABLE, (IS_WALKABLE_OVER(i) ||
3322                                   IS_WALKABLE_INSIDE(i) ||
3323                                   IS_WALKABLE_UNDER(i)));
3324
3325     SET_PROPERTY(i, EP_PASSABLE, (IS_PASSABLE_OVER(i) ||
3326                                   IS_PASSABLE_INSIDE(i) ||
3327                                   IS_PASSABLE_UNDER(i)));
3328
3329     SET_PROPERTY(i, EP_ACCESSIBLE_OVER, (IS_WALKABLE_OVER(i) ||
3330                                          IS_PASSABLE_OVER(i)));
3331
3332     SET_PROPERTY(i, EP_ACCESSIBLE_INSIDE, (IS_WALKABLE_INSIDE(i) ||
3333                                            IS_PASSABLE_INSIDE(i)));
3334
3335     SET_PROPERTY(i, EP_ACCESSIBLE_UNDER, (IS_WALKABLE_UNDER(i) ||
3336                                           IS_PASSABLE_UNDER(i)));
3337
3338     SET_PROPERTY(i, EP_ACCESSIBLE, (IS_WALKABLE(i) ||
3339                                     IS_PASSABLE(i)));
3340
3341     /* ---------- COLLECTIBLE ---------------------------------------------- */
3342     SET_PROPERTY(i, EP_COLLECTIBLE, (IS_COLLECTIBLE_ONLY(i) ||
3343                                      IS_DROPPABLE(i) ||
3344                                      IS_THROWABLE(i)));
3345
3346     /* ---------- SNAPPABLE ------------------------------------------------ */
3347     SET_PROPERTY(i, EP_SNAPPABLE, (IS_DIGGABLE(i) ||
3348                                    IS_COLLECTIBLE(i) ||
3349                                    IS_SWITCHABLE(i) ||
3350                                    i == EL_BD_ROCK));
3351
3352     /* ---------- WALL ----------------------------------------------------- */
3353     SET_PROPERTY(i, EP_WALL, TRUE);     /* default: element is wall */
3354
3355     for (j = 0; no_wall_properties[j] != -1; j++)
3356       if (HAS_PROPERTY(i, no_wall_properties[j]) ||
3357           i >= EL_FIRST_RUNTIME_UNREAL)
3358         SET_PROPERTY(i, EP_WALL, FALSE);
3359
3360     if (IS_HISTORIC_WALL(i))
3361       SET_PROPERTY(i, EP_WALL, TRUE);
3362
3363     /* ---------- SOLID_FOR_PUSHING ---------------------------------------- */
3364     if (engine_version < VERSION_IDENT(2,2,0,0))
3365       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, IS_HISTORIC_SOLID(i));
3366     else
3367       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, (!IS_WALKABLE(i) &&
3368                                              !IS_DIGGABLE(i) &&
3369                                              !IS_COLLECTIBLE(i)));
3370
3371 #if 0
3372     /* ---------- PROTECTED ------------------------------------------------ */
3373     if (IS_ACCESSIBLE_INSIDE(i))
3374       SET_PROPERTY(i, EP_PROTECTED, TRUE);
3375 #endif
3376
3377     /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
3378
3379     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
3380       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
3381     else
3382       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, (IS_CUSTOM_ELEMENT(i) &&
3383                                             IS_INDESTRUCTIBLE(i)));
3384
3385     /* ---------- EXPLOSION_PROOF ------------------------------------------ */
3386     if (i == EL_FLAMES)
3387       SET_PROPERTY(i, EP_EXPLOSION_PROOF, TRUE);
3388     else if (engine_version < VERSION_IDENT(2,2,0,0))
3389       SET_PROPERTY(i, EP_EXPLOSION_PROOF, IS_INDESTRUCTIBLE(i));
3390     else
3391 #if 1
3392       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3393                                            (!IS_WALKABLE(i) ||
3394                                             IS_PROTECTED(i))));
3395 #else
3396 #if 1
3397       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3398                                            !IS_WALKABLE_OVER(i) &&
3399                                            !IS_WALKABLE_UNDER(i)));
3400 #else
3401       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3402                                            IS_PROTECTED(i)));
3403 #endif
3404 #endif
3405
3406     if (IS_CUSTOM_ELEMENT(i))
3407     {
3408       /* these are additional properties which are initially false when set */
3409
3410       /* ---------- DONT_COLLIDE_WITH / DONT_RUN_INTO ---------------------- */
3411       if (DONT_TOUCH(i))
3412         SET_PROPERTY(i, EP_DONT_COLLIDE_WITH, TRUE);
3413       if (DONT_COLLIDE_WITH(i))
3414         SET_PROPERTY(i, EP_DONT_RUN_INTO, TRUE);
3415
3416       /* ---------- CAN_SMASH_ENEMIES / CAN_SMASH_PLAYER ------------------- */
3417       if (CAN_SMASH_EVERYTHING(i))
3418         SET_PROPERTY(i, EP_CAN_SMASH_ENEMIES, TRUE);
3419       if (CAN_SMASH_ENEMIES(i))
3420         SET_PROPERTY(i, EP_CAN_SMASH_PLAYER, TRUE);
3421     }
3422
3423     /* ---------- CAN_SMASH ------------------------------------------------ */
3424     SET_PROPERTY(i, EP_CAN_SMASH, (CAN_SMASH_PLAYER(i) ||
3425                                    CAN_SMASH_ENEMIES(i) ||
3426                                    CAN_SMASH_EVERYTHING(i)));
3427
3428 #if 0
3429     /* ---------- CAN_EXPLODE ---------------------------------------------- */
3430     SET_PROPERTY(i, EP_CAN_EXPLODE, (CAN_EXPLODE_BY_FIRE(i) ||
3431                                      CAN_EXPLODE_SMASHED(i) ||
3432                                      CAN_EXPLODE_IMPACT(i)));
3433 #endif
3434
3435 #if 0
3436     /* ---------- CAN_EXPLODE_3X3 ------------------------------------------ */
3437 #if 0
3438     SET_PROPERTY(i, EP_CAN_EXPLODE_3X3, (!CAN_EXPLODE_1X1(i) &&
3439                                          !CAN_EXPLODE_CROSS(i)));
3440 #else
3441     SET_PROPERTY(i, EP_CAN_EXPLODE_3X3, (CAN_EXPLODE(i) &&
3442                                          !CAN_EXPLODE_1X1(i) &&
3443                                          !CAN_EXPLODE_CROSS(i)));
3444 #endif
3445 #endif
3446
3447     /* ---------- CAN_EXPLODE_BY_FIRE -------------------------------------- */
3448     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_FIRE, (CAN_EXPLODE(i) &&
3449                                              EXPLODES_BY_FIRE(i)));
3450
3451     /* ---------- CAN_EXPLODE_SMASHED -------------------------------------- */
3452     SET_PROPERTY(i, EP_CAN_EXPLODE_SMASHED, (CAN_EXPLODE(i) &&
3453                                              EXPLODES_SMASHED(i)));
3454
3455     /* ---------- CAN_EXPLODE_IMPACT --------------------------------------- */
3456     SET_PROPERTY(i, EP_CAN_EXPLODE_IMPACT, (CAN_EXPLODE(i) &&
3457                                             EXPLODES_IMPACT(i)));
3458
3459     /* ---------- CAN_EXPLODE_BY_DRAGONFIRE -------------------------------- */
3460     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_DRAGONFIRE, CAN_EXPLODE_BY_FIRE(i));
3461
3462     /* ---------- CAN_EXPLODE_BY_EXPLOSION --------------------------------- */
3463     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_EXPLOSION, (CAN_EXPLODE_BY_FIRE(i) ||
3464                                                   i == EL_BLACK_ORB));
3465
3466     /* ---------- COULD_MOVE_INTO_ACID ------------------------------------- */
3467     SET_PROPERTY(i, EP_COULD_MOVE_INTO_ACID, (ELEM_IS_PLAYER(i) ||
3468                                               CAN_MOVE(i) ||
3469                                               IS_CUSTOM_ELEMENT(i)));
3470
3471     /* ---------- MAYBE_DONT_COLLIDE_WITH ---------------------------------- */
3472     SET_PROPERTY(i, EP_MAYBE_DONT_COLLIDE_WITH, (i == EL_SP_SNIKSNAK ||
3473                                                  i == EL_SP_ELECTRON));
3474
3475     /* ---------- DIGGABLE_WITH_GRAVITY ------------------------------------ */
3476     SET_PROPERTY(i, EP_DIGGABLE_WITH_GRAVITY, (IS_DIGGABLE(i) &&
3477                                                !IS_SP_BUGGY_BASE(i)));
3478
3479     /* ---------- CAN_MOVE_INTO_ACID --------------------------------------- */
3480     if (COULD_MOVE_INTO_ACID(i) && !IS_CUSTOM_ELEMENT(i))
3481       SET_PROPERTY(i, EP_CAN_MOVE_INTO_ACID,
3482                    getMoveIntoAcidProperty(&level, i));
3483
3484     /* ---------- DONT_COLLIDE_WITH ---------------------------------------- */
3485     if (MAYBE_DONT_COLLIDE_WITH(i))
3486       SET_PROPERTY(i, EP_DONT_COLLIDE_WITH,
3487                    getDontCollideWithProperty(&level, i));
3488
3489     /* ---------- SP_PORT -------------------------------------------------- */
3490     SET_PROPERTY(i, EP_SP_PORT, (IS_SP_ELEMENT(i) &&
3491                                  IS_PASSABLE_INSIDE(i)));
3492
3493     /* ---------- CAN_CHANGE ----------------------------------------------- */
3494     SET_PROPERTY(i, EP_CAN_CHANGE, FALSE);      /* default: cannot change */
3495     for (j = 0; j < element_info[i].num_change_pages; j++)
3496       if (element_info[i].change_page[j].can_change)
3497         SET_PROPERTY(i, EP_CAN_CHANGE, TRUE);
3498
3499     /* ---------- GFX_CRUMBLED --------------------------------------------- */
3500     SET_PROPERTY(i, EP_GFX_CRUMBLED,
3501                  element_info[i].crumbled[ACTION_DEFAULT] != IMG_EMPTY);
3502   }
3503
3504 #if 0
3505   /* determine inactive elements (used for engine main loop optimization) */
3506   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3507   {
3508     boolean active = FALSE;
3509
3510     for (j = 0; i < NUM_ELEMENT_PROPERTIES; j++)
3511     {
3512       if (HAS_PROPERTY(i, j))
3513         active = TRUE;
3514     }
3515
3516 #if 0
3517     if (!active)
3518       SET_PROPERTY(i, EP_INACTIVE, TRUE);
3519 #endif
3520   }
3521 #endif
3522
3523   /* dynamically adjust element properties according to game engine version */
3524   {
3525     static int ep_em_slippery_wall[] =
3526     {
3527       EL_STEELWALL,
3528       EL_WALL,
3529       EL_EXPANDABLE_WALL,
3530       EL_EXPANDABLE_WALL_HORIZONTAL,
3531       EL_EXPANDABLE_WALL_VERTICAL,
3532       EL_EXPANDABLE_WALL_ANY,
3533       -1
3534     };
3535
3536     /* special EM style gems behaviour */
3537     for (i = 0; ep_em_slippery_wall[i] != -1; i++)
3538       SET_PROPERTY(ep_em_slippery_wall[i], EP_EM_SLIPPERY_WALL,
3539                    level.em_slippery_gems);
3540
3541     /* "EL_EXPANDABLE_WALL_GROWING" wasn't slippery for EM gems in 2.0.1 */
3542     SET_PROPERTY(EL_EXPANDABLE_WALL_GROWING, EP_EM_SLIPPERY_WALL,
3543                  (level.em_slippery_gems &&
3544                   engine_version > VERSION_IDENT(2,0,1,0)));
3545   }
3546
3547 #if 1
3548   /* set default push delay values (corrected since version 3.0.7-1) */
3549   if (engine_version < VERSION_IDENT(3,0,7,1))
3550   {
3551     game.default_push_delay_fixed = 2;
3552     game.default_push_delay_random = 8;
3553   }
3554   else
3555   {
3556     game.default_push_delay_fixed = 8;
3557     game.default_push_delay_random = 8;
3558   }
3559
3560   /* set uninitialized push delay values of custom elements in older levels */
3561   for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
3562   {
3563     int element = EL_CUSTOM_START + i;
3564
3565     if (element_info[element].push_delay_fixed == -1)
3566       element_info[element].push_delay_fixed = game.default_push_delay_fixed;
3567     if (element_info[element].push_delay_random == -1)
3568       element_info[element].push_delay_random = game.default_push_delay_random;
3569   }
3570
3571   /* set some other uninitialized values of custom elements in older levels */
3572   if (engine_version < VERSION_IDENT(3,1,0,0))
3573   {
3574     for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
3575     {
3576       int element = EL_CUSTOM_START + i;
3577
3578       element_info[element].access_direction = MV_ALL_DIRECTIONS;
3579
3580       element_info[element].explosion_delay = 17;
3581       element_info[element].ignition_delay = 8;
3582     }
3583   }
3584
3585 #if 0
3586   /* set element properties that were handled incorrectly in older levels */
3587   if (engine_version < VERSION_IDENT(3,1,0,0))
3588   {
3589     SET_PROPERTY(EL_SP_SNIKSNAK, EP_DONT_COLLIDE_WITH, FALSE);
3590     SET_PROPERTY(EL_SP_ELECTRON, EP_DONT_COLLIDE_WITH, FALSE);
3591   }
3592 #endif
3593
3594 #endif
3595
3596   /* this is needed because some graphics depend on element properties */
3597   if (game_status == GAME_MODE_PLAYING)
3598     InitElementGraphicInfo();
3599 }
3600
3601 static void InitGlobal()
3602 {
3603   global.autoplay_leveldir = NULL;
3604
3605   global.frames_per_second = 0;
3606   global.fps_slowdown = FALSE;
3607   global.fps_slowdown_factor = 1;
3608 }
3609
3610 void Execute_Command(char *command)
3611 {
3612   int i;
3613
3614   if (strcmp(command, "print graphicsinfo.conf") == 0)
3615   {
3616     printf("# You can configure additional/alternative image files here.\n");
3617     printf("# (The entries below are default and therefore commented out.)\n");
3618     printf("\n");
3619     printf("%s\n", getFormattedSetupEntry("name", "Classic Graphics"));
3620     printf("\n");
3621     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3622     printf("\n");
3623
3624     for (i = 0; image_config[i].token != NULL; i++)
3625       printf("# %s\n", getFormattedSetupEntry(image_config[i].token,
3626                                               image_config[i].value));
3627
3628     exit(0);
3629   }
3630   else if (strcmp(command, "print soundsinfo.conf") == 0)
3631   {
3632     printf("# You can configure additional/alternative sound files here.\n");
3633     printf("# (The entries below are default and therefore commented out.)\n");
3634     printf("\n");
3635     printf("%s\n", getFormattedSetupEntry("name", "Classic Sounds"));
3636     printf("\n");
3637     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3638     printf("\n");
3639
3640     for (i = 0; sound_config[i].token != NULL; i++)
3641       printf("# %s\n", getFormattedSetupEntry(sound_config[i].token,
3642                                               sound_config[i].value));
3643
3644     exit(0);
3645   }
3646   else if (strcmp(command, "print musicinfo.conf") == 0)
3647   {
3648     printf("# You can configure additional/alternative music files here.\n");
3649     printf("# (The entries below are default and therefore commented out.)\n");
3650     printf("\n");
3651     printf("%s\n", getFormattedSetupEntry("name", "Classic Music"));
3652     printf("\n");
3653     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3654     printf("\n");
3655
3656     for (i = 0; music_config[i].token != NULL; i++)
3657       printf("# %s\n", getFormattedSetupEntry(music_config[i].token,
3658                                               music_config[i].value));
3659
3660     exit(0);
3661   }
3662   else if (strcmp(command, "print editorsetup.conf") == 0)
3663   {
3664     printf("# You can configure your personal editor element list here.\n");
3665     printf("# (The entries below are default and therefore commented out.)\n");
3666     printf("\n");
3667
3668     PrintEditorElementList();
3669
3670     exit(0);
3671   }
3672   else if (strcmp(command, "print helpanim.conf") == 0)
3673   {
3674     printf("# You can configure different element help animations here.\n");
3675     printf("# (The entries below are default and therefore commented out.)\n");
3676     printf("\n");
3677
3678     for (i = 0; helpanim_config[i].token != NULL; i++)
3679     {
3680       printf("# %s\n", getFormattedSetupEntry(helpanim_config[i].token,
3681                                               helpanim_config[i].value));
3682
3683       if (strcmp(helpanim_config[i].token, "end") == 0)
3684         printf("#\n");
3685     }
3686
3687     exit(0);
3688   }
3689   else if (strcmp(command, "print helptext.conf") == 0)
3690   {
3691     printf("# You can configure different element help text here.\n");
3692     printf("# (The entries below are default and therefore commented out.)\n");
3693     printf("\n");
3694
3695     for (i = 0; helptext_config[i].token != NULL; i++)
3696       printf("# %s\n", getFormattedSetupEntry(helptext_config[i].token,
3697                                               helptext_config[i].value));
3698
3699     exit(0);
3700   }
3701   else if (strncmp(command, "dump level ", 11) == 0)
3702   {
3703     char *filename = &command[11];
3704
3705     if (access(filename, F_OK) != 0)
3706       Error(ERR_EXIT, "cannot open file '%s'", filename);
3707
3708     LoadLevelFromFilename(&level, filename);
3709     DumpLevel(&level);
3710
3711     exit(0);
3712   }
3713   else if (strncmp(command, "dump tape ", 10) == 0)
3714   {
3715     char *filename = &command[10];
3716
3717     if (access(filename, F_OK) != 0)
3718       Error(ERR_EXIT, "cannot open file '%s'", filename);
3719
3720     LoadTapeFromFilename(filename);
3721     DumpTape(&tape);
3722
3723     exit(0);
3724   }
3725   else if (strncmp(command, "autoplay ", 9) == 0)
3726   {
3727     char *str_copy = getStringCopy(&command[9]);
3728     char *str_ptr = strchr(str_copy, ' ');
3729
3730     global.autoplay_leveldir = str_copy;
3731     global.autoplay_level_nr = -1;
3732
3733     if (str_ptr != NULL)
3734     {
3735       *str_ptr++ = '\0';                        /* terminate leveldir string */
3736       global.autoplay_level_nr = atoi(str_ptr); /* get level_nr value */
3737     }
3738   }
3739   else
3740   {
3741     Error(ERR_EXIT_HELP, "unrecognized command '%s'", command);
3742   }
3743 }
3744
3745 static void InitSetup()
3746 {
3747   LoadSetup();                                  /* global setup info */
3748
3749   /* set some options from setup file */
3750
3751   if (setup.options.verbose)
3752     options.verbose = TRUE;
3753 }
3754
3755 static void InitPlayerInfo()
3756 {
3757   int i;
3758
3759   /* choose default local player */
3760   local_player = &stored_player[0];
3761
3762   for (i = 0; i < MAX_PLAYERS; i++)
3763     stored_player[i].connected = FALSE;
3764
3765   local_player->connected = TRUE;
3766 }
3767
3768 static void InitArtworkInfo()
3769 {
3770   LoadArtworkInfo();
3771 }
3772
3773 static char *get_string_in_brackets(char *string)
3774 {
3775   char *string_in_brackets = checked_malloc(strlen(string) + 3);
3776
3777   sprintf(string_in_brackets, "[%s]", string);
3778
3779   return string_in_brackets;
3780 }
3781
3782 static char *get_level_id_suffix(int id_nr)
3783 {
3784   char *id_suffix = checked_malloc(1 + 3 + 1);
3785
3786   if (id_nr < 0 || id_nr > 999)
3787     id_nr = 0;
3788
3789   sprintf(id_suffix, ".%03d", id_nr);
3790
3791   return id_suffix;
3792 }
3793
3794 #if 0
3795 static char *get_element_class_token(int element)
3796 {
3797   char *element_class_name = element_info[element].class_name;
3798   char *element_class_token = checked_malloc(strlen(element_class_name) + 3);
3799
3800   sprintf(element_class_token, "[%s]", element_class_name);
3801
3802   return element_class_token;
3803 }
3804
3805 static char *get_action_class_token(int action)
3806 {
3807   char *action_class_name = &element_action_info[action].suffix[1];
3808   char *action_class_token = checked_malloc(strlen(action_class_name) + 3);
3809
3810   sprintf(action_class_token, "[%s]", action_class_name);
3811
3812   return action_class_token;
3813 }
3814 #endif
3815
3816 static void InitArtworkConfig()
3817 {
3818   static char *image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS + 1];
3819   static char *sound_id_prefix[2 * MAX_NUM_ELEMENTS + 1];
3820   static char *music_id_prefix[NUM_MUSIC_PREFIXES + 1];
3821   static char *action_id_suffix[NUM_ACTIONS + 1];
3822   static char *direction_id_suffix[NUM_DIRECTIONS + 1];
3823   static char *special_id_suffix[NUM_SPECIAL_GFX_ARGS + 1];
3824   static char *level_id_suffix[MAX_LEVELS + 1];
3825   static char *dummy[1] = { NULL };
3826   static char *ignore_generic_tokens[] =
3827   {
3828     "name",
3829     "sort_priority",
3830     NULL
3831   };
3832   static char **ignore_image_tokens;
3833   static char **ignore_sound_tokens;
3834   static char **ignore_music_tokens;
3835   int num_ignore_generic_tokens;
3836   int num_ignore_image_tokens;
3837   int num_ignore_sound_tokens;
3838   int num_ignore_music_tokens;
3839   int i;
3840
3841   /* dynamically determine list of generic tokens to be ignored */
3842   num_ignore_generic_tokens = 0;
3843   for (i = 0; ignore_generic_tokens[i] != NULL; i++)
3844     num_ignore_generic_tokens++;
3845
3846   /* dynamically determine list of image tokens to be ignored */
3847   num_ignore_image_tokens = num_ignore_generic_tokens;
3848   for (i = 0; image_config_vars[i].token != NULL; i++)
3849     num_ignore_image_tokens++;
3850   ignore_image_tokens =
3851     checked_malloc((num_ignore_image_tokens + 1) * sizeof(char *));
3852   for (i = 0; i < num_ignore_generic_tokens; i++)
3853     ignore_image_tokens[i] = ignore_generic_tokens[i];
3854   for (i = 0; i < num_ignore_image_tokens - num_ignore_generic_tokens; i++)
3855     ignore_image_tokens[num_ignore_generic_tokens + i] =
3856       image_config_vars[i].token;
3857   ignore_image_tokens[num_ignore_image_tokens] = NULL;
3858
3859   /* dynamically determine list of sound tokens to be ignored */
3860   num_ignore_sound_tokens = num_ignore_generic_tokens;
3861   ignore_sound_tokens =
3862     checked_malloc((num_ignore_sound_tokens + 1) * sizeof(char *));
3863   for (i = 0; i < num_ignore_generic_tokens; i++)
3864     ignore_sound_tokens[i] = ignore_generic_tokens[i];
3865   ignore_sound_tokens[num_ignore_sound_tokens] = NULL;
3866
3867   /* dynamically determine list of music tokens to be ignored */
3868   num_ignore_music_tokens = num_ignore_generic_tokens;
3869   ignore_music_tokens =
3870     checked_malloc((num_ignore_music_tokens + 1) * sizeof(char *));
3871   for (i = 0; i < num_ignore_generic_tokens; i++)
3872     ignore_music_tokens[i] = ignore_generic_tokens[i];
3873   ignore_music_tokens[num_ignore_music_tokens] = NULL;
3874
3875   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3876     image_id_prefix[i] = element_info[i].token_name;
3877   for (i = 0; i < NUM_FONTS; i++)
3878     image_id_prefix[MAX_NUM_ELEMENTS + i] = font_info[i].token_name;
3879   image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS] = NULL;
3880
3881   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3882     sound_id_prefix[i] = element_info[i].token_name;
3883   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3884     sound_id_prefix[MAX_NUM_ELEMENTS + i] =
3885       get_string_in_brackets(element_info[i].class_name);
3886   sound_id_prefix[2 * MAX_NUM_ELEMENTS] = NULL;
3887
3888   for (i = 0; i < NUM_MUSIC_PREFIXES; i++)
3889     music_id_prefix[i] = music_prefix_info[i].prefix;
3890   music_id_prefix[MAX_LEVELS] = NULL;
3891
3892   for (i = 0; i < NUM_ACTIONS; i++)
3893     action_id_suffix[i] = element_action_info[i].suffix;
3894   action_id_suffix[NUM_ACTIONS] = NULL;
3895
3896   for (i = 0; i < NUM_DIRECTIONS; i++)
3897     direction_id_suffix[i] = element_direction_info[i].suffix;
3898   direction_id_suffix[NUM_DIRECTIONS] = NULL;
3899
3900   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
3901     special_id_suffix[i] = special_suffix_info[i].suffix;
3902   special_id_suffix[NUM_SPECIAL_GFX_ARGS] = NULL;
3903
3904   for (i = 0; i < MAX_LEVELS; i++)
3905     level_id_suffix[i] = get_level_id_suffix(i);
3906   level_id_suffix[MAX_LEVELS] = NULL;
3907
3908   InitImageList(image_config, NUM_IMAGE_FILES, image_config_suffix,
3909                 image_id_prefix, action_id_suffix, direction_id_suffix,
3910                 special_id_suffix, ignore_image_tokens);
3911   InitSoundList(sound_config, NUM_SOUND_FILES, sound_config_suffix,
3912                 sound_id_prefix, action_id_suffix, dummy,
3913                 special_id_suffix, ignore_sound_tokens);
3914   InitMusicList(music_config, NUM_MUSIC_FILES, music_config_suffix,
3915                 music_id_prefix, special_id_suffix, level_id_suffix,
3916                 dummy, ignore_music_tokens);
3917 }
3918
3919 static void InitMixer()
3920 {
3921   OpenAudio();
3922   StartMixer();
3923 }
3924
3925 void InitGfx()
3926 {
3927   char *filename_font_initial = NULL;
3928   Bitmap *bitmap_font_initial = NULL;
3929   int i, j;
3930
3931   /* determine settings for initial font (for displaying startup messages) */
3932   for (i = 0; image_config[i].token != NULL; i++)
3933   {
3934     for (j = 0; j < NUM_INITIAL_FONTS; j++)
3935     {
3936       char font_token[128];
3937       int len_font_token;
3938
3939       sprintf(font_token, "%s_%d", CONFIG_TOKEN_FONT_INITIAL, j + 1);
3940       len_font_token = strlen(font_token);
3941
3942       if (strcmp(image_config[i].token, font_token) == 0)
3943         filename_font_initial = image_config[i].value;
3944       else if (strlen(image_config[i].token) > len_font_token &&
3945                strncmp(image_config[i].token, font_token, len_font_token) == 0)
3946       {
3947         if (strcmp(&image_config[i].token[len_font_token], ".x") == 0)
3948           font_initial[j].src_x = atoi(image_config[i].value);
3949         else if (strcmp(&image_config[i].token[len_font_token], ".y") == 0)
3950           font_initial[j].src_y = atoi(image_config[i].value);
3951         else if (strcmp(&image_config[i].token[len_font_token], ".width") == 0)
3952           font_initial[j].width = atoi(image_config[i].value);
3953         else if (strcmp(&image_config[i].token[len_font_token],".height") == 0)
3954           font_initial[j].height = atoi(image_config[i].value);
3955       }
3956     }
3957   }
3958
3959   for (j = 0; j < NUM_INITIAL_FONTS; j++)
3960   {
3961     font_initial[j].num_chars = DEFAULT_NUM_CHARS_PER_FONT;
3962     font_initial[j].num_chars_per_line = DEFAULT_NUM_CHARS_PER_LINE;
3963   }
3964
3965   if (filename_font_initial == NULL)    /* should not happen */
3966     Error(ERR_EXIT, "cannot get filename for '%s'", CONFIG_TOKEN_FONT_INITIAL);
3967
3968   /* create additional image buffers for double-buffering */
3969   bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
3970   bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
3971
3972   /* initialize screen properties */
3973   InitGfxFieldInfo(SX, SY, SXSIZE, SYSIZE,
3974                    REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE,
3975                    bitmap_db_field);
3976   InitGfxDoor1Info(DX, DY, DXSIZE, DYSIZE);
3977   InitGfxDoor2Info(VX, VY, VXSIZE, VYSIZE);
3978   InitGfxScrollbufferInfo(FXSIZE, FYSIZE);
3979
3980   bitmap_font_initial = LoadCustomImage(filename_font_initial);
3981
3982   for (j = 0; j < NUM_INITIAL_FONTS; j++)
3983     font_initial[j].bitmap = bitmap_font_initial;
3984
3985   InitFontGraphicInfo();
3986
3987   DrawInitText(getProgramInitString(), 20, FC_YELLOW);
3988   DrawInitText(PROGRAM_COPYRIGHT_STRING, 50, FC_RED);
3989
3990   DrawInitText("Loading graphics:", 120, FC_GREEN);
3991
3992   InitTileClipmasks();
3993 }
3994
3995 void InitGfxBackground()
3996 {
3997   int x, y;
3998
3999   drawto = backbuffer;
4000   fieldbuffer = bitmap_db_field;
4001   SetDrawtoField(DRAW_BACKBUFFER);
4002
4003   BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, backbuffer,
4004              0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
4005   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
4006   ClearRectangle(bitmap_db_door, 0, 0, 3 * DXSIZE, DYSIZE + VYSIZE);
4007
4008   for (x = 0; x < MAX_BUF_XSIZE; x++)
4009     for (y = 0; y < MAX_BUF_YSIZE; y++)
4010       redraw[x][y] = 0;
4011   redraw_tiles = 0;
4012   redraw_mask = REDRAW_ALL;
4013 }
4014
4015 static void InitLevelInfo()
4016 {
4017   LoadLevelInfo();                              /* global level info */
4018   LoadLevelSetup_LastSeries();                  /* last played series info */
4019   LoadLevelSetup_SeriesInfo();                  /* last played level info */
4020 }
4021
4022 void InitLevelArtworkInfo()
4023 {
4024   LoadLevelArtworkInfo();
4025 }
4026
4027 static void InitImages()
4028 {
4029 #if 1
4030   setLevelArtworkDir(artwork.gfx_first);
4031 #endif
4032
4033 #if 0
4034   printf("::: InitImages for '%s' ['%s', '%s'] ['%s', '%s']\n",
4035          leveldir_current->identifier,
4036          artwork.gfx_current_identifier,
4037          artwork.gfx_current->identifier,
4038          leveldir_current->graphics_set,
4039          leveldir_current->graphics_path);
4040 #endif
4041
4042   ReloadCustomImages();
4043
4044   LoadCustomElementDescriptions();
4045   LoadSpecialMenuDesignSettings();
4046
4047   ReinitializeGraphics();
4048 }
4049
4050 static void InitSound(char *identifier)
4051 {
4052   if (identifier == NULL)
4053     identifier = artwork.snd_current->identifier;
4054
4055 #if 1
4056   /* set artwork path to send it to the sound server process */
4057   setLevelArtworkDir(artwork.snd_first);
4058 #endif
4059
4060   InitReloadCustomSounds(identifier);
4061   ReinitializeSounds();
4062 }
4063
4064 static void InitMusic(char *identifier)
4065 {
4066   if (identifier == NULL)
4067     identifier = artwork.mus_current->identifier;
4068
4069 #if 1
4070   /* set artwork path to send it to the sound server process */
4071   setLevelArtworkDir(artwork.mus_first);
4072 #endif
4073
4074   InitReloadCustomMusic(identifier);
4075   ReinitializeMusic();
4076 }
4077
4078 void InitNetworkServer()
4079 {
4080 #if defined(PLATFORM_UNIX)
4081   int nr_wanted;
4082 #endif
4083
4084   if (!options.network)
4085     return;
4086
4087 #if defined(PLATFORM_UNIX)
4088   nr_wanted = Request("Choose player", REQ_PLAYER | REQ_STAY_CLOSED);
4089
4090   if (!ConnectToServer(options.server_host, options.server_port))
4091     Error(ERR_EXIT, "cannot connect to network game server");
4092
4093   SendToServer_PlayerName(setup.player_name);
4094   SendToServer_ProtocolVersion();
4095
4096   if (nr_wanted)
4097     SendToServer_NrWanted(nr_wanted);
4098 #endif
4099 }
4100
4101 static char *getNewArtworkIdentifier(int type)
4102 {
4103   static char *leveldir_current_identifier[3] = { NULL, NULL, NULL };
4104   static boolean last_override_level_artwork[3] = { FALSE, FALSE, FALSE };
4105   static boolean last_has_level_artwork_set[3] = { FALSE, FALSE, FALSE };
4106   static boolean initialized[3] = { FALSE, FALSE, FALSE };
4107   TreeInfo *artwork_first_node = ARTWORK_FIRST_NODE(artwork, type);
4108   boolean setup_override_artwork = SETUP_OVERRIDE_ARTWORK(setup, type);
4109   char *setup_artwork_set = SETUP_ARTWORK_SET(setup, type);
4110   char *leveldir_identifier = leveldir_current->identifier;
4111 #if 1
4112   /* !!! setLevelArtworkDir() should be moved to an earlier stage !!! */
4113   char *leveldir_artwork_set = setLevelArtworkDir(artwork_first_node);
4114 #else
4115   char *leveldir_artwork_set = LEVELDIR_ARTWORK_SET(leveldir_current, type);
4116 #endif
4117   boolean has_level_artwork_set = (leveldir_artwork_set != NULL);
4118   char *artwork_current_identifier;
4119   char *artwork_new_identifier = NULL;  /* default: nothing has changed */
4120
4121   /* leveldir_current may be invalid (level group, parent link) */
4122   if (!validLevelSeries(leveldir_current))
4123     return NULL;
4124
4125   /* 1st step: determine artwork set to be activated in descending order:
4126      --------------------------------------------------------------------
4127      1. setup artwork (when configured to override everything else)
4128      2. artwork set configured in "levelinfo.conf" of current level set
4129         (artwork in level directory will have priority when loading later)
4130      3. artwork in level directory (stored in artwork sub-directory)
4131      4. setup artwork (currently configured in setup menu) */
4132
4133   if (setup_override_artwork)
4134     artwork_current_identifier = setup_artwork_set;
4135   else if (leveldir_artwork_set != NULL)
4136     artwork_current_identifier = leveldir_artwork_set;
4137   else if (getTreeInfoFromIdentifier(artwork_first_node, leveldir_identifier))
4138     artwork_current_identifier = leveldir_identifier;
4139   else
4140     artwork_current_identifier = setup_artwork_set;
4141
4142
4143   /* 2nd step: check if it is really needed to reload artwork set
4144      ------------------------------------------------------------ */
4145
4146 #if 0
4147   if (type == ARTWORK_TYPE_GRAPHICS)
4148     printf("::: 0: '%s' ['%s', '%s'] ['%s' ('%s')]\n",
4149            artwork_new_identifier,
4150            ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4151            artwork_current_identifier,
4152            leveldir_current->graphics_set,
4153            leveldir_current->identifier);
4154 #endif
4155
4156   /* ---------- reload if level set and also artwork set has changed ------- */
4157   if (leveldir_current_identifier[type] != leveldir_identifier &&
4158       (last_has_level_artwork_set[type] || has_level_artwork_set))
4159     artwork_new_identifier = artwork_current_identifier;
4160
4161   leveldir_current_identifier[type] = leveldir_identifier;
4162   last_has_level_artwork_set[type] = has_level_artwork_set;
4163
4164 #if 0
4165   if (type == ARTWORK_TYPE_GRAPHICS)
4166     printf("::: 1: '%s'\n", artwork_new_identifier);
4167 #endif
4168
4169   /* ---------- reload if "override artwork" setting has changed ----------- */
4170   if (last_override_level_artwork[type] != setup_override_artwork)
4171     artwork_new_identifier = artwork_current_identifier;
4172
4173   last_override_level_artwork[type] = setup_override_artwork;
4174
4175 #if 0
4176   if (type == ARTWORK_TYPE_GRAPHICS)
4177     printf("::: 2: '%s'\n", artwork_new_identifier);
4178 #endif
4179
4180   /* ---------- reload if current artwork identifier has changed ----------- */
4181   if (strcmp(ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4182              artwork_current_identifier) != 0)
4183     artwork_new_identifier = artwork_current_identifier;
4184
4185   *(&(ARTWORK_CURRENT_IDENTIFIER(artwork, type))) = artwork_current_identifier;
4186
4187 #if 0
4188   if (type == ARTWORK_TYPE_GRAPHICS)
4189     printf("::: 3: '%s'\n", artwork_new_identifier);
4190 #endif
4191
4192   /* ---------- do not reload directly after starting ---------------------- */
4193   if (!initialized[type])
4194     artwork_new_identifier = NULL;
4195
4196   initialized[type] = TRUE;
4197
4198 #if 0
4199   if (type == ARTWORK_TYPE_GRAPHICS)
4200     printf("::: 4: '%s'\n", artwork_new_identifier);
4201 #endif
4202
4203 #if 0
4204   if (type == ARTWORK_TYPE_GRAPHICS)
4205     printf("CHECKING OLD/NEW GFX:\n- OLD: %s\n- NEW: %s ['%s', '%s'] ['%s']\n",
4206            artwork.gfx_current_identifier, artwork_current_identifier,
4207            artwork.gfx_current->identifier, leveldir_current->graphics_set,
4208            artwork_new_identifier);
4209 #endif
4210
4211   return artwork_new_identifier;
4212 }
4213
4214 void ReloadCustomArtwork(int force_reload)
4215 {
4216   char *gfx_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_GRAPHICS);
4217   char *snd_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_SOUNDS);
4218   char *mus_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_MUSIC);
4219   boolean force_reload_gfx = (force_reload & (1 << ARTWORK_TYPE_GRAPHICS));
4220   boolean force_reload_snd = (force_reload & (1 << ARTWORK_TYPE_SOUNDS));
4221   boolean force_reload_mus = (force_reload & (1 << ARTWORK_TYPE_MUSIC));
4222   boolean redraw_screen = FALSE;
4223
4224   if (gfx_new_identifier != NULL || force_reload_gfx)
4225   {
4226 #if 0
4227     printf("RELOADING GRAPHICS '%s' -> '%s' ['%s', '%s']\n",
4228            artwork.gfx_current_identifier,
4229            gfx_new_identifier,
4230            artwork.gfx_current->identifier,
4231            leveldir_current->graphics_set);
4232 #endif
4233
4234     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4235
4236     InitImages();
4237
4238 #if 0
4239     printf("... '%s'\n",
4240            leveldir_current->graphics_set);
4241 #endif
4242
4243     FreeTileClipmasks();
4244     InitTileClipmasks();
4245
4246     redraw_screen = TRUE;
4247   }
4248
4249   if (snd_new_identifier != NULL || force_reload_snd)
4250   {
4251     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4252
4253     InitSound(snd_new_identifier);
4254
4255     redraw_screen = TRUE;
4256   }
4257
4258   if (mus_new_identifier != NULL || force_reload_mus)
4259   {
4260     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4261
4262     InitMusic(mus_new_identifier);
4263
4264     redraw_screen = TRUE;
4265   }
4266
4267   if (redraw_screen)
4268   {
4269     InitGfxBackground();
4270
4271     /* force redraw of (open or closed) door graphics */
4272     SetDoorState(DOOR_OPEN_ALL);
4273     CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
4274   }
4275 }
4276
4277 void KeyboardAutoRepeatOffUnlessAutoplay()
4278 {
4279   if (global.autoplay_leveldir == NULL)
4280     KeyboardAutoRepeatOff();
4281 }
4282
4283
4284 /* ========================================================================= */
4285 /* OpenAll()                                                                 */
4286 /* ========================================================================= */
4287
4288 void OpenAll()
4289 {
4290   InitGlobal();         /* initialize some global variables */
4291
4292   if (options.execute_command)
4293     Execute_Command(options.execute_command);
4294
4295   if (options.serveronly)
4296   {
4297 #if defined(PLATFORM_UNIX)
4298     NetworkServer(options.server_port, options.serveronly);
4299 #else
4300     Error(ERR_WARN, "networking only supported in Unix version");
4301 #endif
4302     exit(0);    /* never reached */
4303   }
4304
4305   InitSetup();
4306
4307   InitPlayerInfo();
4308   InitArtworkInfo();            /* needed before loading gfx, sound & music */
4309   InitArtworkConfig();          /* needed before forking sound child process */
4310   InitMixer();
4311
4312   InitCounter();
4313
4314   InitRND(NEW_RANDOMIZE);
4315   InitSimpleRND(NEW_RANDOMIZE);
4316
4317   InitJoysticks();
4318
4319   InitVideoDisplay();
4320   InitVideoBuffer(&backbuffer, &window, WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH,
4321                   setup.fullscreen);
4322
4323   InitEventFilter(FilterMouseMotionEvents);
4324
4325   InitElementPropertiesStatic();
4326   InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
4327
4328   InitGfx();
4329
4330   InitLevelInfo();
4331   InitLevelArtworkInfo();
4332
4333   InitImages();                 /* needs to know current level directory */
4334   InitSound(NULL);              /* needs to know current level directory */
4335   InitMusic(NULL);              /* needs to know current level directory */
4336
4337   InitGfxBackground();
4338
4339   if (global.autoplay_leveldir)
4340   {
4341     AutoPlayTape();
4342     return;
4343   }
4344
4345   game_status = GAME_MODE_MAIN;
4346
4347   DrawMainMenu();
4348
4349   InitNetworkServer();
4350 }
4351
4352 void CloseAllAndExit(int exit_value)
4353 {
4354   StopSounds();
4355   FreeAllSounds();
4356   FreeAllMusic();
4357   CloseAudio();         /* called after freeing sounds (needed for SDL) */
4358
4359   FreeAllImages();
4360   FreeTileClipmasks();
4361
4362   CloseVideoDisplay();
4363   ClosePlatformDependentStuff();
4364
4365   exit(exit_value);
4366 }