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
  28 #include "conf_e2g.c"   /* include auto-generated data structure definitions */
  29 #include "conf_esg.c"   /* include auto-generated data structure definitions */
  30 #include "conf_e2s.c"   /* include auto-generated data structure definitions */
  31 #include "conf_fnt.c"   /* include auto-generated data structure definitions */
  32
  33
  34 #define CONFIG_TOKEN_FONT_INITIAL               "font.initial"
  35
  36
  37 struct FontBitmapInfo font_initial[NUM_INITIAL_FONTS];
  38
  39
  40 static void InitTileClipmasks()
  41 {
  42 #if 0
  43 #if defined(TARGET_X11)
  44   XGCValues clip_gc_values;
  45   unsigned long clip_gc_valuemask;
  46
  47 #if defined(TARGET_X11_NATIVE)
  48
  49 #if 0
  50   GC copy_clipmask_gc;
  51
  52   static struct
  53   {
  54     int start;
  55     int count;
  56   }
  57   tile_needs_clipping[] =
  58   {
  59     { GFX_SPIELER1_UP, 4 },
  60     { GFX_SPIELER1_DOWN, 4 },
  61     { GFX_SPIELER1_LEFT, 4 },
  62     { GFX_SPIELER1_RIGHT, 4 },
  63     { GFX_SPIELER1_PUSH_LEFT, 4 },
  64     { GFX_SPIELER1_PUSH_RIGHT, 4 },
  65     { GFX_SPIELER2_UP, 4 },
  66     { GFX_SPIELER2_DOWN, 4 },
  67     { GFX_SPIELER2_LEFT, 4 },
  68     { GFX_SPIELER2_RIGHT, 4 },
  69     { GFX_SPIELER2_PUSH_LEFT, 4 },
  70     { GFX_SPIELER2_PUSH_RIGHT, 4 },
  71     { GFX_SPIELER3_UP, 4 },
  72     { GFX_SPIELER3_DOWN, 4 },
  73     { GFX_SPIELER3_LEFT, 4 },
  74     { GFX_SPIELER3_RIGHT, 4 },
  75     { GFX_SPIELER3_PUSH_LEFT, 4 },
  76     { GFX_SPIELER3_PUSH_RIGHT, 4 },
  77     { GFX_SPIELER4_UP, 4 },
  78     { GFX_SPIELER4_DOWN, 4 },
  79     { GFX_SPIELER4_LEFT, 4 },
  80     { GFX_SPIELER4_RIGHT, 4 },
  81     { GFX_SPIELER4_PUSH_LEFT, 4 },
  82     { GFX_SPIELER4_PUSH_RIGHT, 4 },
  83     { GFX_SP_MURPHY, 1 },
  84     { GFX_MURPHY_GO_LEFT, 3 },
  85     { GFX_MURPHY_GO_RIGHT, 3 },
  86     { GFX_MURPHY_SNAP_UP, 1 },
  87     { GFX_MURPHY_SNAP_DOWN, 1 },
  88     { GFX_MURPHY_SNAP_RIGHT, 1 },
  89     { GFX_MURPHY_SNAP_LEFT, 1 },
  90     { GFX_MURPHY_PUSH_RIGHT, 1 },
  91     { GFX_MURPHY_PUSH_LEFT, 1 },
  92     { GFX_GEBLUBBER, 4 },
  93     { GFX_DYNAMIT, 7 },
  94     { GFX_DYNABOMB, 4 },
  95     { GFX_EXPLOSION, 8 },
  96     { GFX_SOKOBAN_OBJEKT, 1 },
  97     { GFX_FUNKELN_BLAU, 3 },
  98     { GFX_FUNKELN_WEISS, 3 },
  99     { GFX2_SHIELD_PASSIVE, 3 },
 100     { GFX2_SHIELD_ACTIVE, 3 },
 101     { -1, 0 }
 102   };
 103 #endif
 104
 105 #endif /* TARGET_X11_NATIVE */
 106 #endif /* TARGET_X11 */
 107
 108   int i;
 109
 110   /* initialize pixmap array for special X11 tile clipping to Pixmap 'None' */
 111   for (i=0; i<NUM_TILES; i++)
 112     tile_clipmask[i] = None;
 113
 114 #if defined(TARGET_X11)
 115   /* This stuff is needed because X11 (XSetClipOrigin(), to be precise) is
 116      often very slow when preparing a masked XCopyArea() for big Pixmaps.
 117      To prevent this, create small (tile-sized) mask Pixmaps which will then
 118      be set much faster with XSetClipOrigin() and speed things up a lot. */
 119
 120   clip_gc_values.graphics_exposures = False;
 121   clip_gc_valuemask = GCGraphicsExposures;
 122   tile_clip_gc = XCreateGC(display, window->drawable,
 123                            clip_gc_valuemask, &clip_gc_values);
 124
 125 #if 0
 126   for (i=0; i<NUM_BITMAPS; i++)
 127   {
 128     if (pix[i]->clip_mask)
 129     {
 130       clip_gc_values.graphics_exposures = False;
 131       clip_gc_values.clip_mask = pix[i]->clip_mask;
 132       clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
 133       pix[i]->stored_clip_gc = XCreateGC(display, window->drawable,
 134                                          clip_gc_valuemask, &clip_gc_values);
 135     }
 136   }
 137 #endif
 138
 139 #if defined(TARGET_X11_NATIVE)
 140
 141 #if 0
 142   /* create graphic context structures needed for clipping */
 143   clip_gc_values.graphics_exposures = False;
 144   clip_gc_valuemask = GCGraphicsExposures;
 145   copy_clipmask_gc = XCreateGC(display, pix[PIX_BACK]->clip_mask,
 146                                clip_gc_valuemask, &clip_gc_values);
 147
 148   /* create only those clipping Pixmaps we really need */
 149   for (i=0; tile_needs_clipping[i].start>=0; i++)
 150   {
 151     int j;
 152
 153     for (j=0; j<tile_needs_clipping[i].count; j++)
 154     {
 155       int tile = tile_needs_clipping[i].start + j;
 156       int graphic = tile;
 157       int src_x, src_y;
 158       Bitmap *src_bitmap;
 159       Pixmap src_pixmap;
 160
 161       getGraphicSource(graphic, &src_bitmap, &src_x, &src_y);
 162       src_pixmap = src_bitmap->clip_mask;
 163
 164       tile_clipmask[tile] = XCreatePixmap(display, window->drawable,
 165                                           TILEX, TILEY, 1);
 166
 167       XCopyArea(display, src_pixmap, tile_clipmask[tile], copy_clipmask_gc,
 168                 src_x, src_y, TILEX, TILEY, 0, 0);
 169     }
 170   }
 171
 172   XFreeGC(display, copy_clipmask_gc);
 173 #endif
 174
 175 #endif /* TARGET_X11_NATIVE */
 176 #endif /* TARGET_X11 */
 177 #endif
 178 }
 179
 180 void FreeTileClipmasks()
 181 {
 182 #if 0
 183 #if defined(TARGET_X11)
 184   int i;
 185
 186   for (i=0; i<NUM_TILES; i++)
 187   {
 188     if (tile_clipmask[i] != None)
 189     {
 190       XFreePixmap(display, tile_clipmask[i]);
 191       tile_clipmask[i] = None;
 192     }
 193   }
 194
 195   if (tile_clip_gc)
 196     XFreeGC(display, tile_clip_gc);
 197   tile_clip_gc = None;
 198
 199 #if 0
 200   for (i=0; i<NUM_BITMAPS; i++)
 201   {
 202     if (pix[i] != NULL && pix[i]->stored_clip_gc)
 203     {
 204       XFreeGC(display, pix[i]->stored_clip_gc);
 205       pix[i]->stored_clip_gc = None;
 206     }
 207   }
 208 #endif
 209
 210 #endif /* TARGET_X11 */
 211 #endif
 212 }
 213
 214 void FreeGadgets()
 215 {
 216   FreeLevelEditorGadgets();
 217   FreeGameButtons();
 218   FreeTapeButtons();
 219   FreeToolButtons();
 220   FreeScreenGadgets();
 221 }
 222
 223 void InitGadgets()
 224 {
 225   static boolean gadgets_initialized = FALSE;
 226
 227   if (gadgets_initialized)
 228     FreeGadgets();
 229
 230   CreateLevelEditorGadgets();
 231   CreateGameButtons();
 232   CreateTapeButtons();
 233   CreateToolButtons();
 234   CreateScreenGadgets();
 235
 236   gadgets_initialized = TRUE;
 237 }
 238
 239 void InitElementSmallImages()
 240 {
 241   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 242   int num_property_mappings = getImageListPropertyMappingSize();
 243   int i;
 244
 245   /* initialize normal images from static configuration */
 246   for (i=0; element_to_graphic[i].element > -1; i++)
 247     CreateImageWithSmallImages(element_to_graphic[i].graphic);
 248
 249   /* initialize special images from static configuration */
 250   for (i=0; element_to_special_graphic[i].element > -1; i++)
 251     CreateImageWithSmallImages(element_to_special_graphic[i].graphic);
 252
 253   /* initialize images from dynamic configuration */
 254   for (i=0; i < num_property_mappings; i++)
 255     if (property_mapping[i].artwork_index < MAX_NUM_ELEMENTS)
 256       CreateImageWithSmallImages(property_mapping[i].artwork_index);
 257 }
 258
 259 static int getFontBitmapID(int font_nr)
 260 {
 261   int special = -1;
 262
 263   if (game_status == MAINMENU || game_status == TYPENAME)
 264     special = GFX_SPECIAL_ARG_MAIN;
 265   else if (game_status == CHOOSELEVEL)
 266     special = GFX_SPECIAL_ARG_LEVELS;
 267   else if (game_status == HALLOFFAME)
 268     special = GFX_SPECIAL_ARG_SCORES;
 269   else if (game_status == LEVELED)
 270     special = GFX_SPECIAL_ARG_EDITOR;
 271   else if (game_status == HELPSCREEN)
 272     special = GFX_SPECIAL_ARG_INFO;
 273   else if (game_status == SETUP)
 274     special = GFX_SPECIAL_ARG_SETUP;
 275   else if (game_status == PSEUDO_PREVIEW)
 276     special = GFX_SPECIAL_ARG_PREVIEW;
 277   else if (game_status == PLAYING || game_status == PSEUDO_DOOR)
 278     special = GFX_SPECIAL_ARG_DOOR;
 279
 280   if (special != -1)
 281     return font_info[font_nr].special_bitmap_id[special];
 282   else
 283     return font_nr;
 284 }
 285
 286 void InitFontGraphicInfo()
 287 {
 288   static struct FontBitmapInfo *font_bitmap_info = NULL;
 289   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 290   int num_property_mappings = getImageListPropertyMappingSize();
 291   int num_font_bitmaps = NUM_FONTS;
 292   int i, j;
 293
 294   if (graphic_info == NULL)             /* still at startup phase */
 295   {
 296     InitFontInfo(font_initial, NUM_INITIAL_FONTS, getFontBitmapID);
 297
 298     return;
 299   }
 300
 301   /* ---------- initialize font graphic definitions ---------- */
 302
 303   /* always start with reliable default values (normal font graphics) */
 304   for (i=0; i < NUM_FONTS; i++)
 305     font_info[i].graphic = FONT_INITIAL_1;
 306
 307   /* initialize normal font/graphic mapping from static configuration */
 308   for (i=0; font_to_graphic[i].font_nr > -1; i++)
 309   {
 310     int font_nr = font_to_graphic[i].font_nr;
 311     int special = font_to_graphic[i].special;
 312     int graphic = font_to_graphic[i].graphic;
 313
 314     if (special != -1)
 315       continue;
 316
 317     font_info[font_nr].graphic = graphic;
 318   }
 319
 320   /* always start with reliable default values (special font graphics) */
 321   for (i=0; i < NUM_FONTS; i++)
 322   {
 323     for (j=0; j < NUM_SPECIAL_GFX_ARGS; j++)
 324     {
 325       font_info[i].special_graphic[j] = font_info[i].graphic;
 326       font_info[i].special_bitmap_id[j] = i;
 327     }
 328   }
 329
 330   /* initialize special font/graphic mapping from static configuration */
 331   for (i=0; font_to_graphic[i].font_nr > -1; i++)
 332   {
 333     int font_nr = font_to_graphic[i].font_nr;
 334     int special = font_to_graphic[i].special;
 335     int graphic = font_to_graphic[i].graphic;
 336
 337     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 338     {
 339       font_info[font_nr].special_graphic[special] = graphic;
 340       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
 341       num_font_bitmaps++;
 342     }
 343   }
 344
 345   /* initialize special element/graphic mapping from dynamic configuration */
 346   for (i=0; i < num_property_mappings; i++)
 347   {
 348     int font_nr = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
 349     int special = property_mapping[i].ext3_index;
 350     int graphic = property_mapping[i].artwork_index;
 351
 352     if (font_nr < 0)
 353       continue;
 354
 355     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 356     {
 357       font_info[font_nr].special_graphic[special] = graphic;
 358       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
 359       num_font_bitmaps++;
 360     }
 361   }
 362
 363   /* ---------- initialize font bitmap array ---------- */
 364
 365   if (font_bitmap_info != NULL)
 366     FreeFontInfo(font_bitmap_info);
 367
 368   font_bitmap_info =
 369     checked_calloc(num_font_bitmaps * sizeof(struct FontBitmapInfo));
 370
 371   /* ---------- initialize font bitmap definitions ---------- */
 372
 373   for (i=0; i < NUM_FONTS; i++)
 374   {
 375     if (i < NUM_INITIAL_FONTS)
 376     {
 377       font_bitmap_info[i] = font_initial[i];
 378       continue;
 379     }
 380
 381     for (j=0; j < NUM_SPECIAL_GFX_ARGS; j++)
 382     {
 383       int font_bitmap_id = font_info[i].special_bitmap_id[j];
 384       int graphic = font_info[i].special_graphic[j];
 385
 386       /* set 'graphic_info' for font entries, if uninitialized (guessed) */
 387       if (graphic_info[graphic].anim_frames < MIN_NUM_CHARS_PER_FONT)
 388       {
 389         graphic_info[graphic].anim_frames = DEFAULT_NUM_CHARS_PER_FONT;
 390         graphic_info[graphic].anim_frames_per_line= DEFAULT_NUM_CHARS_PER_LINE;
 391       }
 392
 393       /* copy font relevant information from graphics information */
 394       font_bitmap_info[font_bitmap_id].bitmap = graphic_info[graphic].bitmap;
 395       font_bitmap_info[font_bitmap_id].src_x  = graphic_info[graphic].src_x;
 396       font_bitmap_info[font_bitmap_id].src_y  = graphic_info[graphic].src_y;
 397       font_bitmap_info[font_bitmap_id].width  = graphic_info[graphic].width;
 398       font_bitmap_info[font_bitmap_id].height = graphic_info[graphic].height;
 399       font_bitmap_info[font_bitmap_id].draw_x = graphic_info[graphic].draw_x;
 400       font_bitmap_info[font_bitmap_id].draw_y = graphic_info[graphic].draw_y;
 401
 402       font_bitmap_info[font_bitmap_id].num_chars =
 403         graphic_info[graphic].anim_frames;
 404       font_bitmap_info[font_bitmap_id].num_chars_per_line =
 405         graphic_info[graphic].anim_frames_per_line;
 406     }
 407   }
 408
 409   InitFontInfo(font_bitmap_info, num_font_bitmaps, getFontBitmapID);
 410 }
 411
 412 void InitElementGraphicInfo()
 413 {
 414   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 415   int num_property_mappings = getImageListPropertyMappingSize();
 416   int i, act, dir;
 417
 418   /* set values to -1 to identify later as "uninitialized" values */
 419   for (i=0; i<MAX_NUM_ELEMENTS; i++)
 420   {
 421     for (act=0; act<NUM_ACTIONS; act++)
 422     {
 423       element_info[i].graphic[act] = -1;
 424
 425       for (dir=0; dir<NUM_DIRECTIONS; dir++)
 426         element_info[i].direction_graphic[act][dir] = -1;
 427     }
 428   }
 429
 430   /* initialize normal element/graphic mapping from static configuration */
 431   for (i=0; element_to_graphic[i].element > -1; i++)
 432   {
 433     int element   = element_to_graphic[i].element;
 434     int action    = element_to_graphic[i].action;
 435     int direction = element_to_graphic[i].direction;
 436     int graphic   = element_to_graphic[i].graphic;
 437
 438     if (graphic_info[graphic].bitmap == NULL)
 439       continue;
 440
 441     if (action < 0)
 442       action = ACTION_DEFAULT;
 443
 444     if (direction > -1)
 445       element_info[element].direction_graphic[action][direction] = graphic;
 446     else
 447       element_info[element].graphic[action] = graphic;
 448   }
 449
 450   /* initialize normal element/graphic mapping from dynamic configuration */
 451   for (i=0; i < num_property_mappings; i++)
 452   {
 453     int element   = property_mapping[i].base_index;
 454     int action    = property_mapping[i].ext1_index;
 455     int direction = property_mapping[i].ext2_index;
 456     int special   = property_mapping[i].ext3_index;
 457     int graphic   = property_mapping[i].artwork_index;
 458
 459     if (graphic_info[graphic].bitmap == NULL)
 460       continue;
 461
 462     if (element >= MAX_NUM_ELEMENTS || special != -1)
 463       continue;
 464
 465     if (action < 0)
 466       action = ACTION_DEFAULT;
 467
 468     if (direction > -1)
 469       element_info[element].direction_graphic[action][direction] = graphic;
 470     else
 471       element_info[element].graphic[action] = graphic;
 472   }
 473
 474   /* now set all '-1' values to element specific default values */
 475   for (i=0; i<MAX_NUM_ELEMENTS; i++)
 476   {
 477     int default_action_graphic = element_info[i].graphic[ACTION_DEFAULT];
 478     int default_action_direction_graphic[NUM_DIRECTIONS];
 479
 480     if (default_action_graphic == -1)
 481       default_action_graphic = IMG_CHAR_QUESTION;
 482
 483     for (dir=0; dir<NUM_DIRECTIONS; dir++)
 484     {
 485       default_action_direction_graphic[dir] =
 486         element_info[i].direction_graphic[ACTION_DEFAULT][dir];
 487
 488       if (default_action_direction_graphic[dir] == -1)
 489         default_action_direction_graphic[dir] = default_action_graphic;
 490     }
 491
 492     for (act=0; act<NUM_ACTIONS; act++)
 493     {
 494       boolean act_empty = (act == ACTION_DIGGING ||
 495                            act == ACTION_SNAPPING ||
 496                            act == ACTION_COLLECTING);
 497
 498       for (dir=0; dir<NUM_DIRECTIONS; dir++)
 499       {
 500         int default_direction_graphic = element_info[i].graphic[act];
 501
 502         /* no graphic for current action -- use default direction graphic */
 503         if (default_direction_graphic == -1)
 504           default_direction_graphic =
 505             (act_empty ? IMG_EMPTY : default_action_direction_graphic[dir]);
 506
 507         if (element_info[i].direction_graphic[act][dir] == -1)
 508           element_info[i].direction_graphic[act][dir] =
 509             default_direction_graphic;
 510       }
 511
 512       /* no graphic for this specific action -- use default action graphic */
 513       if (element_info[i].graphic[act] == -1)
 514         element_info[i].graphic[act] =
 515           (act_empty ? IMG_EMPTY : default_action_graphic);
 516     }
 517   }
 518
 519 #if 0
 520 #if DEBUG
 521   if (options.verbose)
 522   {
 523     for (i=0; i<MAX_NUM_ELEMENTS; i++)
 524       if (element_info[i].graphic[ACTION_DEFAULT] == IMG_CHAR_QUESTION &&
 525           i != EL_CHAR_QUESTION)
 526         Error(ERR_RETURN, "warning: no graphic for element '%s' (%d)",
 527               element_info[i].token_name, i);
 528   }
 529 #endif
 530 #endif
 531 }
 532
 533 void InitElementSpecialGraphicInfo()
 534 {
 535   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 536   int num_property_mappings = getImageListPropertyMappingSize();
 537   int i, j;
 538
 539   /* always start with reliable default values */
 540   for (i=0; i < MAX_NUM_ELEMENTS; i++)
 541     for (j=0; j < NUM_SPECIAL_GFX_ARGS; j++)
 542       element_info[i].special_graphic[j] =
 543         element_info[i].graphic[ACTION_DEFAULT];
 544
 545   /* initialize special element/graphic mapping from static configuration */
 546   for (i=0; element_to_special_graphic[i].element > -1; i++)
 547   {
 548     int element = element_to_special_graphic[i].element;
 549     int special = element_to_special_graphic[i].special;
 550     int graphic = element_to_special_graphic[i].graphic;
 551     boolean base_redefined = getImageListEntry(el2img(element))->redefined;
 552     boolean special_redefined = getImageListEntry(graphic)->redefined;
 553
 554     if (base_redefined && !special_redefined)
 555       continue;
 556
 557     element_info[element].special_graphic[special] = graphic;
 558   }
 559
 560   /* initialize special element/graphic mapping from dynamic configuration */
 561   for (i=0; i < num_property_mappings; i++)
 562   {
 563     int element = property_mapping[i].base_index;
 564     int special = property_mapping[i].ext3_index;
 565     int graphic = property_mapping[i].artwork_index;
 566
 567     if (element >= MAX_NUM_ELEMENTS)
 568       continue;
 569
 570     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 571       element_info[element].special_graphic[special] = graphic;
 572   }
 573 }
 574
 575 static void set_graphic_parameters(int graphic, char **parameter_raw)
 576 {
 577   Bitmap *src_bitmap = getBitmapFromImageID(graphic);
 578   int parameter[NUM_GFX_ARGS];
 579   int anim_frames_per_row = 1, anim_frames_per_col = 1;
 580   int anim_frames_per_line = 1;
 581   int i;
 582
 583   /* get integer values from string parameters */
 584   for (i=0; i < NUM_GFX_ARGS; i++)
 585     parameter[i] =
 586       get_parameter_value(image_config_suffix[i].token, parameter_raw[i],
 587                           image_config_suffix[i].type);
 588
 589   graphic_info[graphic].bitmap = src_bitmap;
 590
 591   /* start with reliable default values */
 592   graphic_info[graphic].src_x = 0;
 593   graphic_info[graphic].src_y = 0;
 594   graphic_info[graphic].width = TILEX;
 595   graphic_info[graphic].height = TILEY;
 596   graphic_info[graphic].offset_x = 0;   /* one or both of these values ... */
 597   graphic_info[graphic].offset_y = 0;   /* ... will be corrected later */
 598
 599   /* optional x and y tile position of animation frame sequence */
 600   if (parameter[GFX_ARG_XPOS] != ARG_UNDEFINED_VALUE)
 601     graphic_info[graphic].src_x = parameter[GFX_ARG_XPOS] * TILEX;
 602   if (parameter[GFX_ARG_YPOS] != ARG_UNDEFINED_VALUE)
 603     graphic_info[graphic].src_y = parameter[GFX_ARG_YPOS] * TILEY;
 604
 605   /* optional x and y pixel position of animation frame sequence */
 606   if (parameter[GFX_ARG_X] != ARG_UNDEFINED_VALUE)
 607     graphic_info[graphic].src_x = parameter[GFX_ARG_X];
 608   if (parameter[GFX_ARG_Y] != ARG_UNDEFINED_VALUE)
 609     graphic_info[graphic].src_y = parameter[GFX_ARG_Y];
 610
 611   /* optional width and height of each animation frame */
 612   if (parameter[GFX_ARG_WIDTH] != ARG_UNDEFINED_VALUE)
 613     graphic_info[graphic].width = parameter[GFX_ARG_WIDTH];
 614   if (parameter[GFX_ARG_HEIGHT] != ARG_UNDEFINED_VALUE)
 615     graphic_info[graphic].height = parameter[GFX_ARG_HEIGHT];
 616
 617   if (src_bitmap)
 618   {
 619     anim_frames_per_row = src_bitmap->width  / graphic_info[graphic].width;
 620     anim_frames_per_col = src_bitmap->height / graphic_info[graphic].height;
 621   }
 622
 623   /* correct x or y offset dependant of vertical or horizontal frame order */
 624   if (parameter[GFX_ARG_VERTICAL])      /* frames are ordered vertically */
 625   {
 626     graphic_info[graphic].offset_y =
 627       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
 628        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].height);
 629     anim_frames_per_line = anim_frames_per_col;
 630   }
 631   else                                  /* frames are ordered horizontally */
 632   {
 633     graphic_info[graphic].offset_x =
 634       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
 635        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].width);
 636     anim_frames_per_line = anim_frames_per_row;
 637   }
 638
 639   /* optionally, the x and y offset of frames can be specified directly */
 640   if (parameter[GFX_ARG_XOFFSET] != ARG_UNDEFINED_VALUE)
 641     graphic_info[graphic].offset_x = parameter[GFX_ARG_XOFFSET];
 642   if (parameter[GFX_ARG_YOFFSET] != ARG_UNDEFINED_VALUE)
 643     graphic_info[graphic].offset_y = parameter[GFX_ARG_YOFFSET];
 644
 645   /* automatically determine correct number of frames, if not defined */
 646   if (parameter[GFX_ARG_FRAMES] != ARG_UNDEFINED_VALUE)
 647     graphic_info[graphic].anim_frames = parameter[GFX_ARG_FRAMES];
 648   else if (parameter[GFX_ARG_XPOS] == 0 && !parameter[GFX_ARG_VERTICAL])
 649     graphic_info[graphic].anim_frames = anim_frames_per_row;
 650   else if (parameter[GFX_ARG_YPOS] == 0 && parameter[GFX_ARG_VERTICAL])
 651     graphic_info[graphic].anim_frames = anim_frames_per_col;
 652   else
 653     graphic_info[graphic].anim_frames = 1;
 654
 655   graphic_info[graphic].anim_frames_per_line =
 656     (parameter[GFX_ARG_FRAMES_PER_LINE] != ARG_UNDEFINED_VALUE ?
 657      parameter[GFX_ARG_FRAMES_PER_LINE] : anim_frames_per_line);
 658
 659   graphic_info[graphic].anim_delay = parameter[GFX_ARG_DELAY];
 660   if (graphic_info[graphic].anim_delay == 0)    /* delay must be at least 1 */
 661     graphic_info[graphic].anim_delay = 1;
 662
 663   graphic_info[graphic].anim_mode = parameter[GFX_ARG_ANIM_MODE];
 664   if (graphic_info[graphic].anim_frames == 1)
 665     graphic_info[graphic].anim_mode = ANIM_NONE;
 666
 667   /* automatically determine correct start frame, if not defined */
 668   if (parameter[GFX_ARG_START_FRAME] == ARG_UNDEFINED_VALUE)
 669     graphic_info[graphic].anim_start_frame = 0;
 670   else if (graphic_info[graphic].anim_mode & ANIM_REVERSE)
 671     graphic_info[graphic].anim_start_frame =
 672       graphic_info[graphic].anim_frames - parameter[GFX_ARG_START_FRAME] - 1;
 673   else
 674     graphic_info[graphic].anim_start_frame = parameter[GFX_ARG_START_FRAME];
 675
 676   /* animation synchronized with global frame counter, not move position */
 677   graphic_info[graphic].anim_global_sync = parameter[GFX_ARG_GLOBAL_SYNC];
 678
 679   /* this is only used for toon animations */
 680   graphic_info[graphic].step_offset = parameter[GFX_ARG_STEP_OFFSET];
 681   graphic_info[graphic].step_delay  = parameter[GFX_ARG_STEP_DELAY];
 682
 683   /* this is only used for drawing font characters */
 684   graphic_info[graphic].draw_x = parameter[GFX_ARG_DRAW_XOFFSET];
 685   graphic_info[graphic].draw_y = parameter[GFX_ARG_DRAW_YOFFSET];
 686 }
 687
 688 static void InitGraphicInfo()
 689 {
 690   int fallback_graphic = IMG_CHAR_EXCLAM;
 691   struct FileInfo *fallback_image = getImageListEntry(fallback_graphic);
 692   Bitmap *fallback_bitmap = getBitmapFromImageID(fallback_graphic);
 693   int num_images = getImageListSize();
 694   int i;
 695
 696 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
 697   static boolean clipmasks_initialized = FALSE;
 698   Pixmap src_pixmap;
 699   XGCValues clip_gc_values;
 700   unsigned long clip_gc_valuemask;
 701   GC copy_clipmask_gc = None;
 702 #endif
 703
 704   if (graphic_info != NULL)
 705     free(graphic_info);
 706
 707   graphic_info = checked_calloc(num_images * sizeof(struct GraphicInfo));
 708
 709 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
 710   if (clipmasks_initialized)
 711   {
 712     for (i=0; i<num_images; i++)
 713     {
 714       if (graphic_info[i].clip_mask)
 715         XFreePixmap(display, graphic_info[i].clip_mask);
 716       if (graphic_info[i].clip_gc)
 717         XFreeGC(display, graphic_info[i].clip_gc);
 718
 719       graphic_info[i].clip_mask = None;
 720       graphic_info[i].clip_gc = None;
 721     }
 722   }
 723 #endif
 724
 725   for (i=0; i<num_images; i++)
 726   {
 727     struct FileInfo *image = getImageListEntry(i);
 728     Bitmap *src_bitmap;
 729     int src_x, src_y;
 730     int first_frame, last_frame;
 731
 732     set_graphic_parameters(i, image->parameter);
 733
 734     /* now check if no animation frames are outside of the loaded image */
 735
 736     if (graphic_info[i].bitmap == NULL)
 737       continue;         /* skip check for optional images that are undefined */
 738
 739     first_frame = 0;
 740     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
 741     if (src_x < 0 || src_y < 0 ||
 742         src_x + TILEX > src_bitmap->width ||
 743         src_y + TILEY > src_bitmap->height)
 744     {
 745       Error(ERR_RETURN_LINE, "-");
 746       Error(ERR_RETURN, "warning: error found in config file:");
 747       Error(ERR_RETURN, "- config file: '%s'",
 748             getImageConfigFilename());
 749       Error(ERR_RETURN, "- config token: '%s'",
 750             getTokenFromImageID(i));
 751       Error(ERR_RETURN, "- image file: '%s'",
 752             src_bitmap->source_filename);
 753       Error(ERR_RETURN,
 754             "error: first animation frame out of bounds (%d, %d)",
 755             src_x, src_y);
 756       Error(ERR_RETURN, "custom graphic rejected for this element/action");
 757
 758       if (i == fallback_graphic)
 759         Error(ERR_EXIT, "fatal error: no fallback graphic available");
 760
 761       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
 762       Error(ERR_RETURN_LINE, "-");
 763
 764       set_graphic_parameters(i, fallback_image->default_parameter);
 765       graphic_info[i].bitmap = fallback_bitmap;
 766     }
 767
 768     last_frame = graphic_info[i].anim_frames - 1;
 769     getGraphicSource(i, last_frame, &src_bitmap, &src_x, &src_y);
 770     if (src_x < 0 || src_y < 0 ||
 771         src_x + TILEX > src_bitmap->width ||
 772         src_y + TILEY > src_bitmap->height)
 773     {
 774       Error(ERR_RETURN_LINE, "-");
 775       Error(ERR_RETURN, "warning: error found in config file:");
 776       Error(ERR_RETURN, "- config file: '%s'",
 777             getImageConfigFilename());
 778       Error(ERR_RETURN, "- config token: '%s'",
 779             getTokenFromImageID(i));
 780       Error(ERR_RETURN, "- image file: '%s'",
 781             src_bitmap->source_filename);
 782       Error(ERR_RETURN,
 783             "error: last animation frame (%d) out of bounds (%d, %d)",
 784             last_frame, src_x, src_y);
 785       Error(ERR_RETURN, "custom graphic rejected for this element/action");
 786
 787       if (i == fallback_graphic)
 788         Error(ERR_EXIT, "fatal error: no fallback graphic available");
 789
 790       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
 791       Error(ERR_RETURN_LINE, "-");
 792
 793       set_graphic_parameters(i, fallback_image->default_parameter);
 794       graphic_info[i].bitmap = fallback_bitmap;
 795     }
 796
 797 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
 798     /* currently we need only a tile clip mask from the first frame */
 799     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
 800
 801     if (copy_clipmask_gc == None)
 802     {
 803       clip_gc_values.graphics_exposures = False;
 804       clip_gc_valuemask = GCGraphicsExposures;
 805       copy_clipmask_gc = XCreateGC(display, src_bitmap->clip_mask,
 806                                    clip_gc_valuemask, &clip_gc_values);
 807     }
 808
 809     graphic_info[i].clip_mask =
 810       XCreatePixmap(display, window->drawable, TILEX, TILEY, 1);
 811
 812     src_pixmap = src_bitmap->clip_mask;
 813     XCopyArea(display, src_pixmap, graphic_info[i].clip_mask,
 814               copy_clipmask_gc, src_x, src_y, TILEX, TILEY, 0, 0);
 815
 816     clip_gc_values.graphics_exposures = False;
 817     clip_gc_values.clip_mask = graphic_info[i].clip_mask;
 818     clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
 819
 820     graphic_info[i].clip_gc =
 821       XCreateGC(display, window->drawable, clip_gc_valuemask, &clip_gc_values);
 822 #endif
 823   }
 824
 825 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
 826   if (copy_clipmask_gc)
 827     XFreeGC(display, copy_clipmask_gc);
 828
 829   clipmasks_initialized = TRUE;
 830 #endif
 831 }
 832
 833 static void InitElementSoundInfo()
 834 {
 835   struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
 836   int num_property_mappings = getSoundListPropertyMappingSize();
 837   int i, j, act;
 838
 839   /* set values to -1 to identify later as "uninitialized" values */
 840   for (i=0; i < MAX_NUM_ELEMENTS; i++)
 841     for (act=0; act < NUM_ACTIONS; act++)
 842       element_info[i].sound[act] = -1;
 843
 844   /* initialize element/sound mapping from static configuration */
 845   for (i=0; element_to_sound[i].element > -1; i++)
 846   {
 847     int element      = element_to_sound[i].element;
 848     int action       = element_to_sound[i].action;
 849     int sound        = element_to_sound[i].sound;
 850     boolean is_class = element_to_sound[i].is_class;
 851
 852     if (action < 0)
 853       action = ACTION_DEFAULT;
 854
 855     if (!is_class)
 856       element_info[element].sound[action] = sound;
 857     else
 858       for (j=0; j < MAX_NUM_ELEMENTS; j++)
 859         if (strcmp(element_info[j].class_name,
 860                    element_info[element].class_name) == 0)
 861           element_info[j].sound[action] = sound;
 862   }
 863
 864   /* initialize element/sound mapping from dynamic configuration */
 865   for (i=0; i < num_property_mappings; i++)
 866   {
 867     int element = property_mapping[i].base_index;
 868     int action  = property_mapping[i].ext1_index;
 869     int sound   = property_mapping[i].artwork_index;
 870
 871     if (element >= MAX_NUM_ELEMENTS)
 872       continue;
 873
 874     if (action < 0)
 875       action = ACTION_DEFAULT;
 876
 877     element_info[element].sound[action] = sound;
 878   }
 879
 880   /* initialize element class/sound mapping from dynamic configuration */
 881   for (i=0; i < num_property_mappings; i++)
 882   {
 883     int element_class = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
 884     int action        = property_mapping[i].ext1_index;
 885     int sound         = property_mapping[i].artwork_index;
 886
 887     if (element_class < 0 || element_class >= MAX_NUM_ELEMENTS)
 888       continue;
 889
 890     if (action < 0)
 891       action = ACTION_DEFAULT;
 892
 893     for (j=0; j < MAX_NUM_ELEMENTS; j++)
 894       if (strcmp(element_info[j].class_name,
 895                  element_info[element_class].class_name) == 0)
 896         element_info[j].sound[action] = sound;
 897   }
 898
 899   /* now set all '-1' values to element specific default values */
 900   for (i=0; i<MAX_NUM_ELEMENTS; i++)
 901   {
 902     int default_action_sound = element_info[i].sound[ACTION_DEFAULT];
 903
 904     for (act=0; act < NUM_ACTIONS; act++)
 905     {
 906       /* no sound for this specific action -- use default action sound */
 907       if (element_info[i].sound[act] == -1)
 908         element_info[i].sound[act] = default_action_sound;
 909     }
 910   }
 911 }
 912
 913 static void set_sound_parameters(int sound, char **parameter_raw)
 914 {
 915   int parameter[NUM_SND_ARGS];
 916   int i;
 917
 918   /* get integer values from string parameters */
 919   for (i=0; i < NUM_SND_ARGS; i++)
 920     parameter[i] =
 921       get_parameter_value(sound_config_suffix[i].token, parameter_raw[i],
 922                           sound_config_suffix[i].type);
 923
 924   /* explicit loop mode setting in configuration overrides default value */
 925   if (parameter[SND_ARG_MODE_LOOP] != ARG_UNDEFINED_VALUE)
 926     sound_info[sound].loop = parameter[SND_ARG_MODE_LOOP];
 927 }
 928
 929 static void InitSoundInfo()
 930 {
 931   struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
 932   int num_property_mappings = getSoundListPropertyMappingSize();
 933   int *sound_effect_properties;
 934   int num_sounds = getSoundListSize();
 935   int i, j;
 936
 937   if (sound_info != NULL)
 938     free(sound_info);
 939
 940   sound_effect_properties = checked_calloc(num_sounds * sizeof(int));
 941   sound_info = checked_calloc(num_sounds * sizeof(struct SoundInfo));
 942
 943   /* initialize sound effect for all elements to "no sound" */
 944   for (i=0; i<MAX_NUM_ELEMENTS; i++)
 945     for (j=0; j<NUM_ACTIONS; j++)
 946       element_info[i].sound[j] = SND_UNDEFINED;
 947
 948   for (i=0; i<num_sounds; i++)
 949   {
 950     struct FileInfo *sound = getSoundListEntry(i);
 951     int len_effect_text = strlen(sound->token);
 952
 953     sound_effect_properties[i] = ACTION_OTHER;
 954     sound_info[i].loop = FALSE;
 955
 956     /* determine all loop sounds and identify certain sound classes */
 957
 958     for (j=0; element_action_info[j].suffix; j++)
 959     {
 960       int len_action_text = strlen(element_action_info[j].suffix);
 961
 962       if (len_action_text < len_effect_text &&
 963           strcmp(&sound->token[len_effect_text - len_action_text],
 964                  element_action_info[j].suffix) == 0)
 965       {
 966         sound_effect_properties[i] = element_action_info[j].value;
 967
 968         if (element_action_info[j].is_loop_sound)
 969           sound_info[i].loop = TRUE;
 970       }
 971     }
 972
 973     /* associate elements and some selected sound actions */
 974
 975     for (j=0; j<MAX_NUM_ELEMENTS; j++)
 976     {
 977       if (element_info[j].class_name)
 978       {
 979         int len_class_text = strlen(element_info[j].class_name);
 980
 981         if (len_class_text + 1 < len_effect_text &&
 982             strncmp(sound->token,
 983                     element_info[j].class_name, len_class_text) == 0 &&
 984             sound->token[len_class_text] == '.')
 985         {
 986           int sound_action_value = sound_effect_properties[i];
 987
 988           element_info[j].sound[sound_action_value] = i;
 989         }
 990       }
 991     }
 992
 993     set_sound_parameters(i, sound->parameter);
 994   }
 995
 996   free(sound_effect_properties);
 997
 998   /* initialize element/sound mapping from dynamic configuration */
 999   for (i=0; i < num_property_mappings; i++)
1000   {
1001     int element   = property_mapping[i].base_index;
1002     int action    = property_mapping[i].ext1_index;
1003     int sound     = property_mapping[i].artwork_index;
1004
1005     if (action < 0)
1006       action = ACTION_DEFAULT;
1007
1008     element_info[element].sound[action] = sound;
1009   }
1010
1011 #if 0
1012   /* TEST ONLY */
1013   {
1014     int element = EL_CUSTOM_11;
1015     int j = 0;
1016
1017     while (element_action_info[j].suffix)
1018     {
1019       printf("element %d, sound action '%s'  == %d\n",
1020              element, element_action_info[j].suffix,
1021              element_info[element].sound[j]);
1022       j++;
1023     }
1024   }
1025
1026   PlaySoundLevelElementAction(0,0, EL_CUSTOM_11, ACTION_PUSHING);
1027 #endif
1028
1029 #if 0
1030   /* TEST ONLY */
1031   {
1032     int element = EL_SAND;
1033     int sound_action = ACTION_DIGGING;
1034     int j = 0;
1035
1036     while (element_action_info[j].suffix)
1037     {
1038       if (element_action_info[j].value == sound_action)
1039         printf("element %d, sound action '%s'  == %d\n",
1040                element, element_action_info[j].suffix,
1041                element_info[element].sound[sound_action]);
1042       j++;
1043     }
1044   }
1045 #endif
1046 }
1047
1048 static void ReinitializeGraphics()
1049 {
1050   InitGraphicInfo();                    /* graphic properties mapping */
1051   InitElementGraphicInfo();             /* element game graphic mapping */
1052   InitElementSpecialGraphicInfo();      /* element special graphic mapping */
1053
1054   InitElementSmallImages();             /* create editor and preview images */
1055   InitFontGraphicInfo();                /* initialize text drawing functions */
1056
1057   SetMainBackgroundImage(IMG_BACKGROUND);
1058   SetDoorBackgroundImage(IMG_BACKGROUND_DOOR);
1059
1060   InitGadgets();
1061   InitToons();
1062 }
1063
1064 static void ReinitializeSounds()
1065 {
1066   InitSoundInfo();              /* sound properties mapping */
1067   InitElementSoundInfo();       /* element game sound mapping */
1068
1069 #if 1
1070   InitElementSoundInfo();       /* element game sound mapping */
1071 #endif
1072
1073   InitPlaySoundLevel();         /* internal game sound settings */
1074 }
1075
1076 static void ReinitializeMusic()
1077 {
1078   /* currently nothing to do */
1079 }
1080
1081 void InitElementProperties()
1082 {
1083   int i, j;
1084
1085   static int ep_amoebalive[] =
1086   {
1087     EL_AMOEBA_WET,
1088     EL_AMOEBA_DRY,
1089     EL_AMOEBA_FULL,
1090     EL_BD_AMOEBA,
1091     -1
1092   };
1093
1094   static int ep_amoeboid[] =
1095   {
1096     EL_AMOEBA_DEAD,
1097     EL_AMOEBA_WET,
1098     EL_AMOEBA_DRY,
1099     EL_AMOEBA_FULL,
1100     EL_BD_AMOEBA,
1101     -1
1102   };
1103
1104   static int ep_keygate[] =
1105   {
1106     EL_GATE_1,
1107     EL_GATE_2,
1108     EL_GATE_3,
1109     EL_GATE_4,
1110     EL_GATE_1_GRAY,
1111     EL_GATE_2_GRAY,
1112     EL_GATE_3_GRAY,
1113     EL_GATE_4_GRAY,
1114     EL_EM_GATE_1,
1115     EL_EM_GATE_2,
1116     EL_EM_GATE_3,
1117     EL_EM_GATE_4,
1118     EL_EM_GATE_1_GRAY,
1119     EL_EM_GATE_2_GRAY,
1120     EL_EM_GATE_3_GRAY,
1121     EL_EM_GATE_4_GRAY,
1122     -1
1123   };
1124
1125   static int ep_can_be_crumbled[] =
1126   {
1127     EL_SAND,
1128     EL_LANDMINE,
1129     EL_TRAP,
1130     EL_TRAP_ACTIVE,
1131     -1
1132   };
1133
1134   static int ep_historic_solid[] =
1135   {
1136     EL_WALL,
1137     EL_EXPANDABLE_WALL,
1138     EL_EXPANDABLE_WALL_HORIZONTAL,
1139     EL_EXPANDABLE_WALL_VERTICAL,
1140     EL_EXPANDABLE_WALL_ANY,
1141     EL_BD_WALL,
1142     EL_WALL_CRUMBLED,
1143     EL_EXIT_CLOSED,
1144     EL_EXIT_OPENING,
1145     EL_EXIT_OPEN,
1146     EL_AMOEBA_DEAD,
1147     EL_AMOEBA_WET,
1148     EL_AMOEBA_DRY,
1149     EL_AMOEBA_FULL,
1150     EL_BD_AMOEBA,
1151     EL_QUICKSAND_EMPTY,
1152     EL_QUICKSAND_FULL,
1153     EL_QUICKSAND_FILLING,
1154     EL_QUICKSAND_EMPTYING,
1155     EL_MAGIC_WALL,
1156     EL_MAGIC_WALL_ACTIVE,
1157     EL_MAGIC_WALL_EMPTYING,
1158     EL_MAGIC_WALL_FILLING,
1159     EL_MAGIC_WALL_FULL,
1160     EL_MAGIC_WALL_DEAD,
1161     EL_BD_MAGIC_WALL,
1162     EL_BD_MAGIC_WALL_ACTIVE,
1163     EL_BD_MAGIC_WALL_EMPTYING,
1164     EL_BD_MAGIC_WALL_FULL,
1165     EL_BD_MAGIC_WALL_FILLING,
1166     EL_BD_MAGIC_WALL_DEAD,
1167     EL_GAME_OF_LIFE,
1168     EL_BIOMAZE,
1169     EL_SP_CHIP_SINGLE,
1170     EL_SP_CHIP_LEFT,
1171     EL_SP_CHIP_RIGHT,
1172     EL_SP_CHIP_TOP,
1173     EL_SP_CHIP_BOTTOM,
1174     EL_SP_TERMINAL,
1175     EL_SP_TERMINAL_ACTIVE,
1176     EL_SP_EXIT_CLOSED,
1177     EL_SP_EXIT_OPEN,
1178     EL_INVISIBLE_WALL,
1179     EL_INVISIBLE_WALL_ACTIVE,
1180     EL_SWITCHGATE_SWITCH_UP,
1181     EL_SWITCHGATE_SWITCH_DOWN,
1182     EL_TIMEGATE_SWITCH,
1183     EL_TIMEGATE_SWITCH_ACTIVE,
1184     EL_EMC_WALL_1,
1185     EL_EMC_WALL_2,
1186     EL_EMC_WALL_3,
1187     EL_EMC_WALL_4,
1188     EL_EMC_WALL_5,
1189     EL_EMC_WALL_6,
1190     EL_EMC_WALL_7,
1191     EL_EMC_WALL_8,
1192     EL_WALL_PEARL,
1193     EL_WALL_CRYSTAL,
1194
1195     /* the following elements are a direct copy of "indestructible" elements,
1196        except "EL_ACID", which is "indestructible", but not "solid"! */
1197 #if 0
1198     EL_ACID,
1199 #endif
1200     EL_STEELWALL,
1201     EL_ACID_POOL_TOPLEFT,
1202     EL_ACID_POOL_TOPRIGHT,
1203     EL_ACID_POOL_BOTTOMLEFT,
1204     EL_ACID_POOL_BOTTOM,
1205     EL_ACID_POOL_BOTTOMRIGHT,
1206     EL_SP_HARDWARE_GRAY,
1207     EL_SP_HARDWARE_GREEN,
1208     EL_SP_HARDWARE_BLUE,
1209     EL_SP_HARDWARE_RED,
1210     EL_SP_HARDWARE_YELLOW,
1211     EL_SP_HARDWARE_BASE_1,
1212     EL_SP_HARDWARE_BASE_2,
1213     EL_SP_HARDWARE_BASE_3,
1214     EL_SP_HARDWARE_BASE_4,
1215     EL_SP_HARDWARE_BASE_5,
1216     EL_SP_HARDWARE_BASE_6,
1217     EL_INVISIBLE_STEELWALL,
1218     EL_INVISIBLE_STEELWALL_ACTIVE,
1219     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1220     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1221     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1222     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1223     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1224     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1225     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1226     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1227     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1228     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1229     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1230     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1231     EL_LIGHT_SWITCH,
1232     EL_LIGHT_SWITCH_ACTIVE,
1233     EL_SIGN_EXCLAMATION,
1234     EL_SIGN_RADIOACTIVITY,
1235     EL_SIGN_STOP,
1236     EL_SIGN_WHEELCHAIR,
1237     EL_SIGN_PARKING,
1238     EL_SIGN_ONEWAY,
1239     EL_SIGN_HEART,
1240     EL_SIGN_TRIANGLE,
1241     EL_SIGN_ROUND,
1242     EL_SIGN_EXIT,
1243     EL_SIGN_YINYANG,
1244     EL_SIGN_OTHER,
1245     EL_STEELWALL_SLANTED,
1246     EL_EMC_STEELWALL_1,
1247     EL_EMC_STEELWALL_2,
1248     EL_EMC_STEELWALL_3,
1249     EL_EMC_STEELWALL_4,
1250     EL_CRYSTAL,
1251     EL_GATE_1,
1252     EL_GATE_2,
1253     EL_GATE_3,
1254     EL_GATE_4,
1255     EL_GATE_1_GRAY,
1256     EL_GATE_2_GRAY,
1257     EL_GATE_3_GRAY,
1258     EL_GATE_4_GRAY,
1259     EL_EM_GATE_1,
1260     EL_EM_GATE_2,
1261     EL_EM_GATE_3,
1262     EL_EM_GATE_4,
1263     EL_EM_GATE_1_GRAY,
1264     EL_EM_GATE_2_GRAY,
1265     EL_EM_GATE_3_GRAY,
1266     EL_EM_GATE_4_GRAY,
1267     EL_SWITCHGATE_OPEN,
1268     EL_SWITCHGATE_OPENING,
1269     EL_SWITCHGATE_CLOSED,
1270     EL_SWITCHGATE_CLOSING,
1271     EL_TIMEGATE_OPEN,
1272     EL_TIMEGATE_OPENING,
1273     EL_TIMEGATE_CLOSED,
1274     EL_TIMEGATE_CLOSING,
1275     EL_TUBE_ANY,
1276     EL_TUBE_VERTICAL,
1277     EL_TUBE_HORIZONTAL,
1278     EL_TUBE_VERTICAL_LEFT,
1279     EL_TUBE_VERTICAL_RIGHT,
1280     EL_TUBE_HORIZONTAL_UP,
1281     EL_TUBE_HORIZONTAL_DOWN,
1282     EL_TUBE_LEFT_UP,
1283     EL_TUBE_LEFT_DOWN,
1284     EL_TUBE_RIGHT_UP,
1285     EL_TUBE_RIGHT_DOWN,
1286     -1
1287   };
1288
1289   static int ep_indestructible[] =
1290   {
1291     EL_STEELWALL,
1292     EL_ACID,
1293     EL_ACID_POOL_TOPLEFT,
1294     EL_ACID_POOL_TOPRIGHT,
1295     EL_ACID_POOL_BOTTOMLEFT,
1296     EL_ACID_POOL_BOTTOM,
1297     EL_ACID_POOL_BOTTOMRIGHT,
1298     EL_SP_HARDWARE_GRAY,
1299     EL_SP_HARDWARE_GREEN,
1300     EL_SP_HARDWARE_BLUE,
1301     EL_SP_HARDWARE_RED,
1302     EL_SP_HARDWARE_YELLOW,
1303     EL_SP_HARDWARE_BASE_1,
1304     EL_SP_HARDWARE_BASE_2,
1305     EL_SP_HARDWARE_BASE_3,
1306     EL_SP_HARDWARE_BASE_4,
1307     EL_SP_HARDWARE_BASE_5,
1308     EL_SP_HARDWARE_BASE_6,
1309     EL_INVISIBLE_STEELWALL,
1310     EL_INVISIBLE_STEELWALL_ACTIVE,
1311     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1312     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1313     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1314     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1315     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1316     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1317     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1318     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1319     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1320     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1321     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1322     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1323     EL_LIGHT_SWITCH,
1324     EL_LIGHT_SWITCH_ACTIVE,
1325     EL_SIGN_EXCLAMATION,
1326     EL_SIGN_RADIOACTIVITY,
1327     EL_SIGN_STOP,
1328     EL_SIGN_WHEELCHAIR,
1329     EL_SIGN_PARKING,
1330     EL_SIGN_ONEWAY,
1331     EL_SIGN_HEART,
1332     EL_SIGN_TRIANGLE,
1333     EL_SIGN_ROUND,
1334     EL_SIGN_EXIT,
1335     EL_SIGN_YINYANG,
1336     EL_SIGN_OTHER,
1337     EL_STEELWALL_SLANTED,
1338     EL_EMC_STEELWALL_1,
1339     EL_EMC_STEELWALL_2,
1340     EL_EMC_STEELWALL_3,
1341     EL_EMC_STEELWALL_4,
1342     EL_CRYSTAL,
1343     EL_GATE_1,
1344     EL_GATE_2,
1345     EL_GATE_3,
1346     EL_GATE_4,
1347     EL_GATE_1_GRAY,
1348     EL_GATE_2_GRAY,
1349     EL_GATE_3_GRAY,
1350     EL_GATE_4_GRAY,
1351     EL_EM_GATE_1,
1352     EL_EM_GATE_2,
1353     EL_EM_GATE_3,
1354     EL_EM_GATE_4,
1355     EL_EM_GATE_1_GRAY,
1356     EL_EM_GATE_2_GRAY,
1357     EL_EM_GATE_3_GRAY,
1358     EL_EM_GATE_4_GRAY,
1359     EL_SWITCHGATE_OPEN,
1360     EL_SWITCHGATE_OPENING,
1361     EL_SWITCHGATE_CLOSED,
1362     EL_SWITCHGATE_CLOSING,
1363     EL_TIMEGATE_OPEN,
1364     EL_TIMEGATE_OPENING,
1365     EL_TIMEGATE_CLOSED,
1366     EL_TIMEGATE_CLOSING,
1367     EL_TUBE_ANY,
1368     EL_TUBE_VERTICAL,
1369     EL_TUBE_HORIZONTAL,
1370     EL_TUBE_VERTICAL_LEFT,
1371     EL_TUBE_VERTICAL_RIGHT,
1372     EL_TUBE_HORIZONTAL_UP,
1373     EL_TUBE_HORIZONTAL_DOWN,
1374     EL_TUBE_LEFT_UP,
1375     EL_TUBE_LEFT_DOWN,
1376     EL_TUBE_RIGHT_UP,
1377     EL_TUBE_RIGHT_DOWN,
1378     -1
1379   };
1380
1381   static int ep_slippery[] =
1382   {
1383     EL_WALL_CRUMBLED,
1384     EL_BD_WALL,
1385     EL_ROCK,
1386     EL_BD_ROCK,
1387     EL_EMERALD,
1388     EL_BD_DIAMOND,
1389     EL_EMERALD_YELLOW,
1390     EL_EMERALD_RED,
1391     EL_EMERALD_PURPLE,
1392     EL_DIAMOND,
1393     EL_BOMB,
1394     EL_NUT,
1395     EL_ROBOT_WHEEL_ACTIVE,
1396     EL_ROBOT_WHEEL,
1397     EL_TIME_ORB_FULL,
1398     EL_TIME_ORB_EMPTY,
1399     EL_LAMP_ACTIVE,
1400     EL_LAMP,
1401     EL_ACID_POOL_TOPLEFT,
1402     EL_ACID_POOL_TOPRIGHT,
1403     EL_SATELLITE,
1404     EL_SP_ZONK,
1405     EL_SP_INFOTRON,
1406     EL_SP_CHIP_SINGLE,
1407     EL_SP_CHIP_LEFT,
1408     EL_SP_CHIP_RIGHT,
1409     EL_SP_CHIP_TOP,
1410     EL_SP_CHIP_BOTTOM,
1411     EL_SPEED_PILL,
1412     EL_STEELWALL_SLANTED,
1413     EL_PEARL,
1414     EL_CRYSTAL,
1415     -1
1416   };
1417
1418   static int ep_enemy[] =
1419   {
1420     EL_BUG,
1421     EL_SPACESHIP,
1422     EL_BD_BUTTERFLY,
1423     EL_BD_FIREFLY,
1424     EL_YAMYAM,
1425     EL_DARK_YAMYAM,
1426     EL_ROBOT,
1427     EL_PACMAN,
1428     EL_SP_SNIKSNAK,
1429     EL_SP_ELECTRON,
1430     -1
1431   };
1432
1433   static int ep_historic_wall[] =
1434   {
1435     EL_STEELWALL,
1436     EL_GATE_1,
1437     EL_GATE_2,
1438     EL_GATE_3,
1439     EL_GATE_4,
1440     EL_GATE_1_GRAY,
1441     EL_GATE_2_GRAY,
1442     EL_GATE_3_GRAY,
1443     EL_GATE_4_GRAY,
1444     EL_EM_GATE_1,
1445     EL_EM_GATE_2,
1446     EL_EM_GATE_3,
1447     EL_EM_GATE_4,
1448     EL_EM_GATE_1_GRAY,
1449     EL_EM_GATE_2_GRAY,
1450     EL_EM_GATE_3_GRAY,
1451     EL_EM_GATE_4_GRAY,
1452     EL_EXIT_CLOSED,
1453     EL_EXIT_OPENING,
1454     EL_EXIT_OPEN,
1455     EL_WALL,
1456     EL_WALL_CRUMBLED,
1457     EL_EXPANDABLE_WALL,
1458     EL_EXPANDABLE_WALL_HORIZONTAL,
1459     EL_EXPANDABLE_WALL_VERTICAL,
1460     EL_EXPANDABLE_WALL_ANY,
1461     EL_EXPANDABLE_WALL_GROWING,
1462     EL_BD_WALL,
1463     EL_SP_CHIP_SINGLE,
1464     EL_SP_CHIP_LEFT,
1465     EL_SP_CHIP_RIGHT,
1466     EL_SP_CHIP_TOP,
1467     EL_SP_CHIP_BOTTOM,
1468     EL_SP_HARDWARE_GRAY,
1469     EL_SP_HARDWARE_GREEN,
1470     EL_SP_HARDWARE_BLUE,
1471     EL_SP_HARDWARE_RED,
1472     EL_SP_HARDWARE_YELLOW,
1473     EL_SP_HARDWARE_BASE_1,
1474     EL_SP_HARDWARE_BASE_2,
1475     EL_SP_HARDWARE_BASE_3,
1476     EL_SP_HARDWARE_BASE_4,
1477     EL_SP_HARDWARE_BASE_5,
1478     EL_SP_HARDWARE_BASE_6,
1479     EL_SP_TERMINAL,
1480     EL_SP_TERMINAL_ACTIVE,
1481     EL_SP_EXIT_CLOSED,
1482     EL_SP_EXIT_OPEN,
1483     EL_INVISIBLE_STEELWALL,
1484     EL_INVISIBLE_STEELWALL_ACTIVE,
1485     EL_INVISIBLE_WALL,
1486     EL_INVISIBLE_WALL_ACTIVE,
1487     EL_STEELWALL_SLANTED,
1488     EL_EMC_STEELWALL_1,
1489     EL_EMC_STEELWALL_2,
1490     EL_EMC_STEELWALL_3,
1491     EL_EMC_STEELWALL_4,
1492     EL_EMC_WALL_1,
1493     EL_EMC_WALL_2,
1494     EL_EMC_WALL_3,
1495     EL_EMC_WALL_4,
1496     EL_EMC_WALL_5,
1497     EL_EMC_WALL_6,
1498     EL_EMC_WALL_7,
1499     EL_EMC_WALL_8,
1500     -1
1501   };
1502
1503   static int ep_can_fall[] =
1504   {
1505     EL_ROCK,
1506     EL_BD_ROCK,
1507     EL_EMERALD,
1508     EL_BD_DIAMOND,
1509     EL_EMERALD_YELLOW,
1510     EL_EMERALD_RED,
1511     EL_EMERALD_PURPLE,
1512     EL_DIAMOND,
1513     EL_BOMB,
1514     EL_NUT,
1515     EL_AMOEBA_DROP,
1516     EL_QUICKSAND_FULL,
1517     EL_MAGIC_WALL_FULL,
1518     EL_BD_MAGIC_WALL_FULL,
1519     EL_TIME_ORB_FULL,
1520     EL_TIME_ORB_EMPTY,
1521     EL_SP_ZONK,
1522     EL_SP_INFOTRON,
1523     EL_SP_DISK_ORANGE,
1524     EL_PEARL,
1525     EL_CRYSTAL,
1526     EL_SPRING,
1527     EL_DX_SUPABOMB,
1528     -1
1529   };
1530
1531   static int ep_can_smash[] =
1532   {
1533     EL_ROCK,
1534     EL_BD_ROCK,
1535     EL_EMERALD,
1536     EL_BD_DIAMOND,
1537     EL_EMERALD_YELLOW,
1538     EL_EMERALD_RED,
1539     EL_EMERALD_PURPLE,
1540     EL_DIAMOND,
1541     EL_BOMB,
1542     EL_NUT,
1543     EL_AMOEBA_DROP,
1544     EL_TIME_ORB_FULL,
1545     EL_TIME_ORB_EMPTY,
1546     EL_SP_ZONK,
1547     EL_SP_INFOTRON,
1548     EL_SP_DISK_ORANGE,
1549     EL_PEARL,
1550     EL_CRYSTAL,
1551     EL_SPRING,
1552     EL_DX_SUPABOMB,
1553     -1
1554   };
1555
1556   static int ep_can_change[] =
1557   {
1558     EL_ROCK,
1559     EL_BD_ROCK,
1560     EL_EMERALD,
1561     EL_BD_DIAMOND,
1562     EL_EMERALD_YELLOW,
1563     EL_EMERALD_RED,
1564     EL_EMERALD_PURPLE,
1565     EL_DIAMOND,
1566     -1
1567   };
1568
1569   static int ep_can_move[] =
1570   {
1571     EL_BUG,
1572     EL_SPACESHIP,
1573     EL_BD_BUTTERFLY,
1574     EL_BD_FIREFLY,
1575     EL_YAMYAM,
1576     EL_DARK_YAMYAM,
1577     EL_ROBOT,
1578     EL_PACMAN,
1579     EL_MOLE,
1580     EL_PENGUIN,
1581     EL_PIG,
1582     EL_DRAGON,
1583     EL_SATELLITE,
1584     EL_SP_SNIKSNAK,
1585     EL_SP_ELECTRON,
1586     EL_BALLOON,
1587     EL_SPRING,
1588     -1
1589   };
1590
1591   static int ep_could_move[] =
1592   {
1593     EL_BUG_RIGHT,
1594     EL_BUG_UP,
1595     EL_BUG_LEFT,
1596     EL_BUG_DOWN,
1597     EL_SPACESHIP_RIGHT,
1598     EL_SPACESHIP_UP,
1599     EL_SPACESHIP_LEFT,
1600     EL_SPACESHIP_DOWN,
1601     EL_BD_BUTTERFLY_RIGHT,
1602     EL_BD_BUTTERFLY_UP,
1603     EL_BD_BUTTERFLY_LEFT,
1604     EL_BD_BUTTERFLY_DOWN,
1605     EL_BD_FIREFLY_RIGHT,
1606     EL_BD_FIREFLY_UP,
1607     EL_BD_FIREFLY_LEFT,
1608     EL_BD_FIREFLY_DOWN,
1609     EL_PACMAN_RIGHT,
1610     EL_PACMAN_UP,
1611     EL_PACMAN_LEFT,
1612     EL_PACMAN_DOWN,
1613     -1
1614   };
1615
1616   static int ep_dont_touch[] =
1617   {
1618     EL_BUG,
1619     EL_SPACESHIP,
1620     EL_BD_BUTTERFLY,
1621     EL_BD_FIREFLY,
1622     -1
1623   };
1624
1625   static int ep_dont_go_to[] =
1626   {
1627     EL_BUG,
1628     EL_SPACESHIP,
1629     EL_BD_BUTTERFLY,
1630     EL_BD_FIREFLY,
1631     EL_YAMYAM,
1632     EL_DARK_YAMYAM,
1633     EL_ROBOT,
1634     EL_PACMAN,
1635     EL_AMOEBA_DROP,
1636     EL_ACID,
1637     EL_SP_SNIKSNAK,
1638     EL_SP_ELECTRON,
1639     EL_SP_BUGGY_BASE_ACTIVE,
1640     EL_TRAP_ACTIVE,
1641     EL_LANDMINE,
1642     -1
1643   };
1644
1645   static int ep_food_dark_yamyam[] =
1646   {
1647     EL_SAND,
1648     EL_BUG,
1649     EL_SPACESHIP,
1650     EL_BD_BUTTERFLY,
1651     EL_BD_FIREFLY,
1652     EL_YAMYAM,
1653     EL_ROBOT,
1654     EL_PACMAN,
1655     EL_AMOEBA_DROP,
1656     EL_AMOEBA_DEAD,
1657     EL_AMOEBA_WET,
1658     EL_AMOEBA_DRY,
1659     EL_AMOEBA_FULL,
1660     EL_BD_AMOEBA,
1661     EL_EMERALD,
1662     EL_BD_DIAMOND,
1663     EL_EMERALD_YELLOW,
1664     EL_EMERALD_RED,
1665     EL_EMERALD_PURPLE,
1666     EL_DIAMOND,
1667     EL_PEARL,
1668     EL_CRYSTAL,
1669     -1
1670   };
1671
1672   static int ep_bd_element[] =
1673   {
1674     EL_EMPTY,
1675     EL_SAND,
1676     EL_WALL_CRUMBLED,
1677     EL_BD_WALL,
1678     EL_ROCK,
1679     EL_BD_ROCK,
1680     EL_BD_DIAMOND,
1681     EL_BD_MAGIC_WALL,
1682     EL_EXIT_CLOSED,
1683     EL_EXIT_OPEN,
1684     EL_STEELWALL,
1685     EL_PLAYER_1,
1686     EL_BD_FIREFLY,
1687     EL_BD_FIREFLY_1,
1688     EL_BD_FIREFLY_2,
1689     EL_BD_FIREFLY_3,
1690     EL_BD_FIREFLY_4,
1691     EL_BD_BUTTERFLY,
1692     EL_BD_BUTTERFLY_1,
1693     EL_BD_BUTTERFLY_2,
1694     EL_BD_BUTTERFLY_3,
1695     EL_BD_BUTTERFLY_4,
1696     EL_BD_AMOEBA,
1697     EL_CHAR_QUESTION,
1698     -1
1699   };
1700
1701   static int ep_sb_element[] =
1702   {
1703     EL_EMPTY,
1704     EL_STEELWALL,
1705     EL_SOKOBAN_OBJECT,
1706     EL_SOKOBAN_FIELD_EMPTY,
1707     EL_SOKOBAN_FIELD_FULL,
1708     EL_PLAYER_1,
1709     EL_INVISIBLE_STEELWALL,
1710     -1
1711   };
1712
1713   static int ep_gem[] =
1714   {
1715     EL_EMERALD,
1716     EL_BD_DIAMOND,
1717     EL_EMERALD_YELLOW,
1718     EL_EMERALD_RED,
1719     EL_EMERALD_PURPLE,
1720     EL_DIAMOND,
1721     -1
1722   };
1723
1724   static int ep_inactive[] =
1725   {
1726     EL_EMPTY,
1727     EL_SAND,
1728     EL_WALL,
1729     EL_BD_WALL,
1730     EL_WALL_CRUMBLED,
1731     EL_STEELWALL,
1732     EL_AMOEBA_DEAD,
1733     EL_QUICKSAND_EMPTY,
1734     EL_STONEBLOCK,
1735     EL_ROBOT_WHEEL,
1736     EL_KEY_1,
1737     EL_KEY_2,
1738     EL_KEY_3,
1739     EL_KEY_4,
1740     EL_EM_KEY_1,
1741     EL_EM_KEY_2,
1742     EL_EM_KEY_3,
1743     EL_EM_KEY_4,
1744     EL_GATE_1,
1745     EL_GATE_2,
1746     EL_GATE_3,
1747     EL_GATE_4,
1748     EL_GATE_1_GRAY,
1749     EL_GATE_2_GRAY,
1750     EL_GATE_3_GRAY,
1751     EL_GATE_4_GRAY,
1752     EL_EM_GATE_1,
1753     EL_EM_GATE_2,
1754     EL_EM_GATE_3,
1755     EL_EM_GATE_4,
1756     EL_EM_GATE_1_GRAY,
1757     EL_EM_GATE_2_GRAY,
1758     EL_EM_GATE_3_GRAY,
1759     EL_EM_GATE_4_GRAY,
1760     EL_DYNAMITE,
1761     EL_INVISIBLE_STEELWALL,
1762     EL_INVISIBLE_WALL,
1763     EL_INVISIBLE_SAND,
1764     EL_LAMP,
1765     EL_LAMP_ACTIVE,
1766     EL_WALL_EMERALD,
1767     EL_WALL_DIAMOND,
1768     EL_WALL_BD_DIAMOND,
1769     EL_WALL_EMERALD_YELLOW,
1770     EL_DYNABOMB_INCREASE_NUMBER,
1771     EL_DYNABOMB_INCREASE_SIZE,
1772     EL_DYNABOMB_INCREASE_POWER,
1773     EL_SOKOBAN_OBJECT,
1774     EL_SOKOBAN_FIELD_EMPTY,
1775     EL_SOKOBAN_FIELD_FULL,
1776     EL_WALL_EMERALD_RED,
1777     EL_WALL_EMERALD_PURPLE,
1778     EL_ACID_POOL_TOPLEFT,
1779     EL_ACID_POOL_TOPRIGHT,
1780     EL_ACID_POOL_BOTTOMLEFT,
1781     EL_ACID_POOL_BOTTOM,
1782     EL_ACID_POOL_BOTTOMRIGHT,
1783     EL_MAGIC_WALL,
1784     EL_MAGIC_WALL_DEAD,
1785     EL_BD_MAGIC_WALL,
1786     EL_BD_MAGIC_WALL_DEAD,
1787     EL_AMOEBA_TO_DIAMOND,
1788     EL_BLOCKED,
1789     EL_SP_EMPTY,
1790     EL_SP_BASE,
1791     EL_SP_PORT_RIGHT,
1792     EL_SP_PORT_DOWN,
1793     EL_SP_PORT_LEFT,
1794     EL_SP_PORT_UP,
1795     EL_SP_GRAVITY_PORT_RIGHT,
1796     EL_SP_GRAVITY_PORT_DOWN,
1797     EL_SP_GRAVITY_PORT_LEFT,
1798     EL_SP_GRAVITY_PORT_UP,
1799     EL_SP_PORT_HORIZONTAL,
1800     EL_SP_PORT_VERTICAL,
1801     EL_SP_PORT_ANY,
1802     EL_SP_DISK_RED,
1803     EL_SP_DISK_YELLOW,
1804     EL_SP_CHIP_SINGLE,
1805     EL_SP_CHIP_LEFT,
1806     EL_SP_CHIP_RIGHT,
1807     EL_SP_CHIP_TOP,
1808     EL_SP_CHIP_BOTTOM,
1809     EL_SP_HARDWARE_GRAY,
1810     EL_SP_HARDWARE_GREEN,
1811     EL_SP_HARDWARE_BLUE,
1812     EL_SP_HARDWARE_RED,
1813     EL_SP_HARDWARE_YELLOW,
1814     EL_SP_HARDWARE_BASE_1,
1815     EL_SP_HARDWARE_BASE_2,
1816     EL_SP_HARDWARE_BASE_3,
1817     EL_SP_HARDWARE_BASE_4,
1818     EL_SP_HARDWARE_BASE_5,
1819     EL_SP_HARDWARE_BASE_6,
1820     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1821     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1822     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1823     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1824     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1825     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1826     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1827     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1828     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1829     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1830     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1831     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1832     EL_SIGN_EXCLAMATION,
1833     EL_SIGN_RADIOACTIVITY,
1834     EL_SIGN_STOP,
1835     EL_SIGN_WHEELCHAIR,
1836     EL_SIGN_PARKING,
1837     EL_SIGN_ONEWAY,
1838     EL_SIGN_HEART,
1839     EL_SIGN_TRIANGLE,
1840     EL_SIGN_ROUND,
1841     EL_SIGN_EXIT,
1842     EL_SIGN_YINYANG,
1843     EL_SIGN_OTHER,
1844     EL_STEELWALL_SLANTED,
1845     EL_EMC_STEELWALL_1,
1846     EL_EMC_STEELWALL_2,
1847     EL_EMC_STEELWALL_3,
1848     EL_EMC_STEELWALL_4,
1849     EL_EMC_WALL_1,
1850     EL_EMC_WALL_2,
1851     EL_EMC_WALL_3,
1852     EL_EMC_WALL_4,
1853     EL_EMC_WALL_5,
1854     EL_EMC_WALL_6,
1855     EL_EMC_WALL_7,
1856     EL_EMC_WALL_8,
1857     -1
1858   };
1859
1860   static int ep_explosive[] =
1861   {
1862     EL_BOMB,
1863     EL_DYNAMITE_ACTIVE,
1864     EL_DYNAMITE,
1865     EL_DYNABOMB_PLAYER_1_ACTIVE,
1866     EL_DYNABOMB_PLAYER_2_ACTIVE,
1867     EL_DYNABOMB_PLAYER_3_ACTIVE,
1868     EL_DYNABOMB_PLAYER_4_ACTIVE,
1869     EL_DYNABOMB_INCREASE_NUMBER,
1870     EL_DYNABOMB_INCREASE_SIZE,
1871     EL_DYNABOMB_INCREASE_POWER,
1872     EL_SP_DISK_RED_ACTIVE,
1873     EL_BUG,
1874     EL_MOLE,
1875     EL_PENGUIN,
1876     EL_PIG,
1877     EL_DRAGON,
1878     EL_SATELLITE,
1879     EL_SP_DISK_RED,
1880     EL_SP_DISK_ORANGE,
1881     EL_SP_DISK_YELLOW,
1882     EL_SP_SNIKSNAK,
1883     EL_SP_ELECTRON,
1884     EL_DX_SUPABOMB,
1885     -1
1886   };
1887
1888   static int ep_food_penguin[] =
1889   {
1890     EL_EMERALD,
1891     EL_BD_DIAMOND,
1892     EL_EMERALD_YELLOW,
1893     EL_EMERALD_RED,
1894     EL_EMERALD_PURPLE,
1895     EL_DIAMOND,
1896     EL_PEARL,
1897     EL_CRYSTAL,
1898     -1
1899   };
1900
1901   static int ep_pushable[] =
1902   {
1903     EL_ROCK,
1904     EL_BD_ROCK,
1905     EL_BOMB,
1906     EL_NUT,
1907     EL_TIME_ORB_EMPTY,
1908     EL_SOKOBAN_FIELD_FULL,
1909     EL_SOKOBAN_OBJECT,
1910     EL_SATELLITE,
1911     EL_SP_ZONK,
1912     EL_SP_DISK_ORANGE,
1913     EL_SP_DISK_YELLOW,
1914     EL_BALLOON,
1915     EL_SPRING,
1916     EL_DX_SUPABOMB,
1917     -1
1918   };
1919
1920   static int ep_player[] =
1921   {
1922     EL_PLAYER_1,
1923     EL_PLAYER_2,
1924     EL_PLAYER_3,
1925     EL_PLAYER_4,
1926     -1
1927   };
1928
1929   static int ep_walkable_over[] =
1930   {
1931     EL_EMPTY_SPACE,
1932     EL_SP_EMPTY_SPACE,
1933     EL_SOKOBAN_FIELD_EMPTY,
1934     EL_EXIT_OPEN,
1935     EL_SP_EXIT_OPEN,
1936     EL_GATE_1,
1937     EL_GATE_2,
1938     EL_GATE_3,
1939     EL_GATE_4,
1940     EL_GATE_1_GRAY,
1941     EL_GATE_2_GRAY,
1942     EL_GATE_3_GRAY,
1943     EL_GATE_4_GRAY,
1944     -1
1945   };
1946
1947   static int ep_walkable_inside[] =
1948   {
1949     EL_TUBE_ANY,
1950     EL_TUBE_VERTICAL,
1951     EL_TUBE_HORIZONTAL,
1952     EL_TUBE_VERTICAL_LEFT,
1953     EL_TUBE_VERTICAL_RIGHT,
1954     EL_TUBE_HORIZONTAL_UP,
1955     EL_TUBE_HORIZONTAL_DOWN,
1956     EL_TUBE_LEFT_UP,
1957     EL_TUBE_LEFT_DOWN,
1958     EL_TUBE_RIGHT_UP,
1959     EL_TUBE_RIGHT_DOWN,
1960     -1
1961   };
1962
1963   static int ep_walkable_under[] =
1964   {
1965     -1
1966   };
1967
1968   static int ep_passable_over[] =
1969   {
1970     EL_EM_GATE_1,
1971     EL_EM_GATE_2,
1972     EL_EM_GATE_3,
1973     EL_EM_GATE_4,
1974     EL_EM_GATE_1_GRAY,
1975     EL_EM_GATE_2_GRAY,
1976     EL_EM_GATE_3_GRAY,
1977     EL_EM_GATE_4_GRAY,
1978     EL_SWITCHGATE_OPEN,
1979     EL_TIMEGATE_OPEN,
1980     -1
1981   };
1982
1983   static int ep_passable_inside[] =
1984   {
1985     EL_SP_PORT_LEFT,
1986     EL_SP_PORT_RIGHT,
1987     EL_SP_PORT_UP,
1988     EL_SP_PORT_DOWN,
1989     EL_SP_PORT_HORIZONTAL,
1990     EL_SP_PORT_VERTICAL,
1991     EL_SP_PORT_ANY,
1992     EL_SP_GRAVITY_PORT_LEFT,
1993     EL_SP_GRAVITY_PORT_RIGHT,
1994     EL_SP_GRAVITY_PORT_UP,
1995     EL_SP_GRAVITY_PORT_DOWN,
1996     -1
1997   };
1998
1999   static int ep_passable_under[] =
2000   {
2001     -1
2002   };
2003
2004   static int ep_diggable[] =
2005   {
2006     EL_SAND,
2007     EL_SP_BASE,
2008     EL_SP_BUGGY_BASE,
2009     EL_SP_BUGGY_BASE_ACTIVATING,
2010     EL_TRAP,
2011     EL_INVISIBLE_SAND,
2012     EL_INVISIBLE_SAND_ACTIVE,
2013 #if 1
2014     EL_LANDMINE,
2015     EL_TRAP_ACTIVE,
2016     EL_SP_BUGGY_BASE_ACTIVE,
2017 #endif
2018     -1
2019   };
2020
2021   static int ep_collectible[] =
2022   {
2023     EL_BD_DIAMOND,
2024     EL_EMERALD,
2025     EL_DIAMOND,
2026     EL_EMERALD_YELLOW,
2027     EL_EMERALD_RED,
2028     EL_EMERALD_PURPLE,
2029     EL_KEY_1,
2030     EL_KEY_2,
2031     EL_KEY_3,
2032     EL_KEY_4,
2033     EL_EM_KEY_1,
2034     EL_EM_KEY_2,
2035     EL_EM_KEY_3,
2036     EL_EM_KEY_4,
2037     EL_DYNAMITE,
2038     EL_DYNABOMB_INCREASE_NUMBER,
2039     EL_DYNABOMB_INCREASE_SIZE,
2040     EL_DYNABOMB_INCREASE_POWER,
2041     EL_SP_INFOTRON,
2042     EL_SP_DISK_RED,
2043     EL_PEARL,
2044     EL_CRYSTAL,
2045     EL_KEY_WHITE,
2046     EL_SHIELD_NORMAL,
2047     EL_SHIELD_DEADLY,
2048     EL_EXTRA_TIME,
2049     EL_ENVELOPE,
2050     EL_SPEED_PILL,
2051     -1
2052   };
2053
2054   static int ep_active_bomb[] =
2055   {
2056     EL_DYNAMITE_ACTIVE,
2057     EL_DYNABOMB_PLAYER_1_ACTIVE,
2058     EL_DYNABOMB_PLAYER_2_ACTIVE,
2059     EL_DYNABOMB_PLAYER_3_ACTIVE,
2060     EL_DYNABOMB_PLAYER_4_ACTIVE,
2061     EL_SP_DISK_RED_ACTIVE,
2062     -1
2063   };
2064
2065   static int ep_belt[] =
2066   {
2067     EL_CONVEYOR_BELT_1_LEFT,
2068     EL_CONVEYOR_BELT_1_MIDDLE,
2069     EL_CONVEYOR_BELT_1_RIGHT,
2070     EL_CONVEYOR_BELT_2_LEFT,
2071     EL_CONVEYOR_BELT_2_MIDDLE,
2072     EL_CONVEYOR_BELT_2_RIGHT,
2073     EL_CONVEYOR_BELT_3_LEFT,
2074     EL_CONVEYOR_BELT_3_MIDDLE,
2075     EL_CONVEYOR_BELT_3_RIGHT,
2076     EL_CONVEYOR_BELT_4_LEFT,
2077     EL_CONVEYOR_BELT_4_MIDDLE,
2078     EL_CONVEYOR_BELT_4_RIGHT,
2079     -1
2080   };
2081
2082   static int ep_belt_active[] =
2083   {
2084     EL_CONVEYOR_BELT_1_LEFT_ACTIVE,
2085     EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE,
2086     EL_CONVEYOR_BELT_1_RIGHT_ACTIVE,
2087     EL_CONVEYOR_BELT_2_LEFT_ACTIVE,
2088     EL_CONVEYOR_BELT_2_MIDDLE_ACTIVE,
2089     EL_CONVEYOR_BELT_2_RIGHT_ACTIVE,
2090     EL_CONVEYOR_BELT_3_LEFT_ACTIVE,
2091     EL_CONVEYOR_BELT_3_MIDDLE_ACTIVE,
2092     EL_CONVEYOR_BELT_3_RIGHT_ACTIVE,
2093     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
2094     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
2095     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
2096     -1
2097   };
2098
2099   static int ep_belt_switch[] =
2100   {
2101     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2102     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2103     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2104     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2105     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2106     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2107     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2108     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2109     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2110     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2111     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2112     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2113     -1
2114   };
2115
2116   static int ep_sp_element[] =
2117   {
2118     EL_SP_EMPTY,
2119     EL_SP_ZONK,
2120     EL_SP_BASE,
2121     EL_SP_MURPHY,
2122     EL_SP_INFOTRON,
2123     EL_SP_CHIP_SINGLE,
2124     EL_SP_HARDWARE_GRAY,
2125     EL_SP_EXIT_CLOSED,
2126     EL_SP_EXIT_OPEN,
2127     EL_SP_DISK_ORANGE,
2128     EL_SP_PORT_RIGHT,
2129     EL_SP_PORT_DOWN,
2130     EL_SP_PORT_LEFT,
2131     EL_SP_PORT_UP,
2132     EL_SP_GRAVITY_PORT_RIGHT,
2133     EL_SP_GRAVITY_PORT_DOWN,
2134     EL_SP_GRAVITY_PORT_LEFT,
2135     EL_SP_GRAVITY_PORT_UP,
2136     EL_SP_SNIKSNAK,
2137     EL_SP_DISK_YELLOW,
2138     EL_SP_TERMINAL,
2139     EL_SP_DISK_RED,
2140     EL_SP_PORT_VERTICAL,
2141     EL_SP_PORT_HORIZONTAL,
2142     EL_SP_PORT_ANY,
2143     EL_SP_ELECTRON,
2144     EL_SP_BUGGY_BASE,
2145     EL_SP_CHIP_LEFT,
2146     EL_SP_CHIP_RIGHT,
2147     EL_SP_HARDWARE_BASE_1,
2148     EL_SP_HARDWARE_GREEN,
2149     EL_SP_HARDWARE_BLUE,
2150     EL_SP_HARDWARE_RED,
2151     EL_SP_HARDWARE_YELLOW,
2152     EL_SP_HARDWARE_BASE_2,
2153     EL_SP_HARDWARE_BASE_3,
2154     EL_SP_HARDWARE_BASE_4,
2155     EL_SP_HARDWARE_BASE_5,
2156     EL_SP_HARDWARE_BASE_6,
2157     EL_SP_CHIP_TOP,
2158     EL_SP_CHIP_BOTTOM,
2159     /* additional elements that appeared in newer Supaplex levels */
2160     EL_INVISIBLE_WALL,
2161     /* more than one murphy in a level results in an inactive clone */
2162     EL_SP_MURPHY_CLONE,
2163     -1
2164   };
2165
2166   static int ep_has_content[] =
2167   {
2168     EL_YAMYAM,
2169     EL_AMOEBA_WET,
2170     EL_AMOEBA_DRY,
2171     EL_AMOEBA_FULL,
2172     EL_BD_AMOEBA,
2173     -1
2174   };
2175
2176   static int ep_tube[] =
2177   {
2178     EL_TUBE_LEFT_UP,
2179     EL_TUBE_LEFT_DOWN,
2180     EL_TUBE_RIGHT_UP,
2181     EL_TUBE_RIGHT_DOWN,
2182     EL_TUBE_HORIZONTAL,
2183     EL_TUBE_HORIZONTAL_UP,
2184     EL_TUBE_HORIZONTAL_DOWN,
2185     EL_TUBE_VERTICAL,
2186     EL_TUBE_VERTICAL_LEFT,
2187     EL_TUBE_VERTICAL_RIGHT,
2188     EL_TUBE_ANY,
2189     -1
2190   };
2191
2192   static struct
2193   {
2194     int *elements;
2195     int property;
2196   } element_properties[] =
2197   {
2198     { ep_amoebalive,            EP_AMOEBALIVE           },
2199     { ep_amoeboid,              EP_AMOEBOID             },
2200     { ep_keygate,               EP_KEYGATE              },
2201     { ep_can_be_crumbled,       EP_CAN_BE_CRUMBLED      },
2202     { ep_historic_solid,        EP_HISTORIC_SOLID       },
2203     { ep_indestructible,        EP_INDESTRUCTIBLE       },
2204     { ep_slippery,              EP_SLIPPERY             },
2205     { ep_enemy,                 EP_ENEMY                },
2206     { ep_historic_wall,         EP_HISTORIC_WALL        },
2207     { ep_can_fall,              EP_CAN_FALL             },
2208     { ep_can_smash,             EP_CAN_SMASH            },
2209     { ep_can_change,            EP_CAN_CHANGE           },
2210     { ep_can_move,              EP_CAN_MOVE             },
2211     { ep_could_move,            EP_COULD_MOVE           },
2212     { ep_dont_touch,            EP_DONT_TOUCH           },
2213     { ep_dont_go_to,            EP_DONT_GO_TO           },
2214     { ep_food_dark_yamyam,      EP_FOOD_DARK_YAMYAM     },
2215     { ep_bd_element,            EP_BD_ELEMENT           },
2216     { ep_sb_element,            EP_SB_ELEMENT           },
2217     { ep_gem,                   EP_GEM                  },
2218     { ep_inactive,              EP_INACTIVE             },
2219     { ep_explosive,             EP_EXPLOSIVE            },
2220     { ep_food_penguin,          EP_FOOD_PENGUIN         },
2221     { ep_pushable,              EP_PUSHABLE             },
2222     { ep_player,                EP_PLAYER               },
2223     { ep_walkable_over,         EP_WALKABLE_OVER        },
2224     { ep_walkable_inside,       EP_WALKABLE_INSIDE      },
2225     { ep_walkable_under,        EP_WALKABLE_UNDER       },
2226     { ep_passable_over,         EP_PASSABLE_OVER        },
2227     { ep_passable_inside,       EP_PASSABLE_INSIDE      },
2228     { ep_passable_under,        EP_PASSABLE_UNDER       },
2229
2230     { ep_diggable,              EP_DIGGABLE             },
2231     { ep_collectible,           EP_COLLECTIBLE          },
2232     { ep_active_bomb,           EP_ACTIVE_BOMB          },
2233     { ep_belt,                  EP_BELT                 },
2234     { ep_belt_active,           EP_BELT_ACTIVE          },
2235     { ep_belt_switch,           EP_BELT_SWITCH          },
2236     { ep_sp_element,            EP_SP_ELEMENT           },
2237     { ep_has_content,           EP_HAS_CONTENT          },
2238     { ep_tube,                  EP_TUBE                 },
2239     { NULL,                     -1                      }
2240   };
2241
2242 #if 0
2243   static int active_properties[] =
2244   {
2245     EP_AMOEBALIVE,
2246     EP_AMOEBOID,
2247     EP_PFORTE,
2248     EP_SOLID,
2249     EP_ENEMY,
2250     EP_MAUER,
2251     EP_CAN_FALL,
2252     EP_CAN_SMASH,
2253     EP_CAN_CHANGE,
2254     EP_CAN_MOVE,
2255     EP_COULD_MOVE,
2256     EP_DONT_TOUCH,
2257     EP_DONT_GO_TO,
2258     EP_GEM,
2259     EP_EXPLOSIVE,
2260     EP_PUSHABLE,
2261     EP_PLAYER,
2262     EP_HAS_CONTENT,
2263     EP_DIGGABLE,
2264     EP_PASSABLE_INSIDE,
2265     EP_OVER_PLAYER,
2266     EP_ACTIVE_BOMB,
2267
2268     EP_BELT,
2269     EP_BELT_ACTIVE,
2270     EP_BELT_SWITCH,
2271     EP_WALKABLE_UNDER,
2272     EP_EM_SLIPPERY_WALL,
2273     EP_CAN_BE_CRUMBLED,
2274   };
2275 #endif
2276
2277   static int no_wall_properties[] =
2278   {
2279     EP_AMOEBALIVE,
2280     EP_AMOEBOID,
2281     EP_CAN_BE_CRUMBLED,
2282     EP_ENEMY,
2283     EP_CAN_FALL,
2284     EP_CAN_SMASH,
2285     EP_CAN_MOVE,
2286     EP_COULD_MOVE,
2287     EP_DONT_GO_TO,
2288     EP_FOOD_DARK_YAMYAM,
2289     EP_GEM,
2290     EP_FOOD_PENGUIN,
2291     EP_PUSHABLE,
2292     EP_PLAYER,
2293     EP_ACCESSIBLE,
2294     EP_DIGGABLE,
2295     EP_COLLECTIBLE,
2296     EP_ACTIVE_BOMB,
2297     EP_BELT,
2298     EP_BELT_ACTIVE,
2299     EP_TUBE,
2300     -1
2301   };
2302
2303   /* always start with reliable default values (no properties) */
2304   for (i=0; i<MAX_NUM_ELEMENTS; i++)
2305     for (j=0; j<NUM_EP_BITFIELDS; j++)
2306       Properties[i][j] = EP_BITMASK_DEFAULT;
2307
2308   /* set all predefined element properties from above arrays */
2309   for (i=0; element_properties[i].elements != NULL; i++)
2310     for (j=0; (element_properties[i].elements)[j] != -1; j++)
2311       SET_PROPERTY((element_properties[i].elements)[j],
2312                    element_properties[i].property, TRUE);
2313
2314   /* set properties of character elements */
2315   for (i=EL_CHAR_START; i<=EL_CHAR_END; i++)
2316     SET_PROPERTY(i, EP_INACTIVE, TRUE);
2317
2318   /* set properties derived from other properties */
2319   for (i=0; i<MAX_NUM_ELEMENTS; i++)
2320   {
2321     if (IS_WALKABLE_OVER(i) || IS_WALKABLE_INSIDE(i) || IS_WALKABLE_UNDER(i))
2322       SET_PROPERTY(i, EP_WALKABLE, TRUE);
2323
2324     if (IS_PASSABLE_OVER(i) || IS_PASSABLE_INSIDE(i) || IS_PASSABLE_UNDER(i))
2325       SET_PROPERTY(i, EP_PASSABLE, TRUE);
2326
2327     if (IS_WALKABLE_OVER(i) || IS_PASSABLE_OVER(i))
2328       SET_PROPERTY(i, EP_ACCESSIBLE_OVER, TRUE);
2329
2330     if (IS_WALKABLE_INSIDE(i) || IS_PASSABLE_INSIDE(i))
2331       SET_PROPERTY(i, EP_ACCESSIBLE_INSIDE, TRUE);
2332
2333     if (IS_WALKABLE_UNDER(i) || IS_PASSABLE_UNDER(i))
2334       SET_PROPERTY(i, EP_ACCESSIBLE_UNDER, TRUE);
2335
2336     if (IS_WALKABLE(i) || IS_PASSABLE(i))
2337       SET_PROPERTY(i, EP_ACCESSIBLE, TRUE);
2338   }
2339
2340   /* dynamically determine wall-like elements */
2341   for (i=0; i < MAX_NUM_ELEMENTS; i++)
2342   {
2343     /* default: element is wall-like */
2344     SET_PROPERTY(i, EP_WALL, TRUE);
2345
2346     for (j=0; no_wall_properties[j] != -1; j++)
2347       if (HAS_PROPERTY(i, no_wall_properties[j]) ||
2348           i >= EL_FIRST_RUNTIME_UNREAL)
2349         SET_PROPERTY(i, EP_WALL, FALSE);
2350
2351     if (IS_HISTORIC_WALL(i))
2352       SET_PROPERTY(i, EP_WALL, TRUE);
2353
2354 #if 0
2355     printf("::: %d: %s '%s'\n",
2356            i,
2357            (IS_WALL(i) ? "IS A WALL:    " : "IS NOT A WALL:"),
2358            element_info[i].token_name);
2359 #endif
2360   }
2361
2362 #if 0
2363   /* determine inactive elements (used for engine main loop optimization) */
2364   for (i=0; i < MAX_NUM_ELEMENTS; i++)
2365   {
2366     boolean active = FALSE;
2367
2368     for (j=0; i < NUM_ELEMENT_PROPERTIES; j++)
2369     {
2370       if (HAS_PROPERTY(i, j))
2371         active = TRUE;
2372     }
2373
2374 #if 0
2375     if (!active)
2376       SET_PROPERTY(i, EP_INACTIVE, TRUE);
2377 #endif
2378   }
2379 #endif
2380 }
2381
2382 static void InitGlobal()
2383 {
2384   global.autoplay_leveldir = NULL;
2385
2386   global.frames_per_second = 0;
2387   global.fps_slowdown = FALSE;
2388   global.fps_slowdown_factor = 1;
2389 }
2390
2391 void Execute_Command(char *command)
2392 {
2393   if (strcmp(command, "print graphicsinfo.conf") == 0)
2394   {
2395     int i;
2396
2397     printf("# You can configure additional/alternative image files here.\n");
2398     printf("# (The images below are default and therefore commented out.)\n");
2399     printf("\n");
2400     printf("%s\n", getFormattedSetupEntry("name", "Classic Graphics"));
2401     printf("\n");
2402     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
2403     printf("\n");
2404
2405     for (i=0; image_config[i].token != NULL; i++)
2406       printf("# %s\n",
2407              getFormattedSetupEntry(image_config[i].token,
2408                                     image_config[i].value));
2409
2410     exit(0);
2411   }
2412   else if (strcmp(command, "print soundsinfo.conf") == 0)
2413   {
2414     int i;
2415
2416     printf("# You can configure additional/alternative sound files here.\n");
2417     printf("# (The sounds below are default and therefore commented out.)\n");
2418     printf("\n");
2419     printf("%s\n", getFormattedSetupEntry("name", "Classic Sounds"));
2420     printf("\n");
2421     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
2422     printf("\n");
2423
2424     for (i=0; sound_config[i].token != NULL; i++)
2425       printf("# %s\n",
2426              getFormattedSetupEntry(sound_config[i].token,
2427                                     sound_config[i].value));
2428
2429     exit(0);
2430   }
2431   else if (strcmp(command, "print musicinfo.conf") == 0)
2432   {
2433     printf("# (Currently only \"name\" and \"sort_priority\" recognized.)\n");
2434     printf("\n");
2435     printf("%s\n", getFormattedSetupEntry("name", "Classic Music"));
2436     printf("\n");
2437     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
2438
2439     exit(0);
2440   }
2441   else if (strncmp(command, "dump level ", 11) == 0)
2442   {
2443     char *filename = &command[11];
2444
2445     if (access(filename, F_OK) != 0)
2446       Error(ERR_EXIT, "cannot open file '%s'", filename);
2447
2448     LoadLevelFromFilename(filename);
2449     DumpLevel(&level);
2450
2451     exit(0);
2452   }
2453   else if (strncmp(command, "dump tape ", 10) == 0)
2454   {
2455     char *filename = &command[10];
2456
2457     if (access(filename, F_OK) != 0)
2458       Error(ERR_EXIT, "cannot open file '%s'", filename);
2459
2460     LoadTapeFromFilename(filename);
2461     DumpTape(&tape);
2462
2463     exit(0);
2464   }
2465   else if (strncmp(command, "autoplay ", 9) == 0)
2466   {
2467     char *str_copy = getStringCopy(&command[9]);
2468     char *str_ptr = strchr(str_copy, ' ');
2469
2470     global.autoplay_leveldir = str_copy;
2471     global.autoplay_level_nr = -1;
2472
2473     if (str_ptr != NULL)
2474     {
2475       *str_ptr++ = '\0';                        /* terminate leveldir string */
2476       global.autoplay_level_nr = atoi(str_ptr); /* get level_nr value */
2477     }
2478   }
2479   else
2480   {
2481     Error(ERR_EXIT_HELP, "unrecognized command '%s'", command);
2482   }
2483 }
2484
2485 static void InitSetup()
2486 {
2487   LoadSetup();                                  /* global setup info */
2488
2489   /* set some options from setup file */
2490
2491   if (setup.options.verbose)
2492     options.verbose = TRUE;
2493 }
2494
2495 static void InitPlayerInfo()
2496 {
2497   int i;
2498
2499   /* choose default local player */
2500   local_player = &stored_player[0];
2501
2502   for (i=0; i<MAX_PLAYERS; i++)
2503     stored_player[i].connected = FALSE;
2504
2505   local_player->connected = TRUE;
2506 }
2507
2508 static void InitArtworkInfo()
2509 {
2510   LoadArtworkInfo();
2511 }
2512
2513 static char *get_element_class_token(int element)
2514 {
2515   char *element_class_name = element_info[element].class_name;
2516   char *element_class_token = checked_malloc(strlen(element_class_name) + 3);
2517
2518   sprintf(element_class_token, "[%s]", element_class_name);
2519
2520   return element_class_token;
2521 }
2522
2523 static void InitArtworkConfig()
2524 {
2525   static char *image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS + 1];
2526   static char *sound_id_prefix[MAX_NUM_ELEMENTS + MAX_NUM_ELEMENTS + 1];
2527   static char *action_id_suffix[NUM_ACTIONS + 1];
2528   static char *direction_id_suffix[NUM_DIRECTIONS + 1];
2529   static char *special_id_suffix[NUM_SPECIAL_GFX_ARGS + 1];
2530   static char *dummy[1] = { NULL };
2531   static char *ignore_image_tokens[] =
2532   {
2533     "name",
2534     "sort_priority",
2535     "global.num_toons",
2536     "menu.draw_xoffset",
2537     "menu.draw_yoffset",
2538     "menu.draw_xoffset.MAIN",
2539     "menu.draw_yoffset.MAIN",
2540     "door.step_offset",
2541     "door.step_delay",
2542     NULL
2543   };
2544   static char *ignore_sound_tokens[] =
2545   {
2546     "name",
2547     "sort_priority",
2548     NULL
2549   };
2550   int i;
2551
2552   for (i=0; i<MAX_NUM_ELEMENTS; i++)
2553     image_id_prefix[i] = element_info[i].token_name;
2554   for (i=0; i<NUM_FONTS; i++)
2555     image_id_prefix[MAX_NUM_ELEMENTS + i] = font_info[i].token_name;
2556   image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS] = NULL;
2557
2558   for (i=0; i<MAX_NUM_ELEMENTS; i++)
2559     sound_id_prefix[i] = element_info[i].token_name;
2560   for (i=0; i<MAX_NUM_ELEMENTS; i++)
2561     sound_id_prefix[MAX_NUM_ELEMENTS + i] = get_element_class_token(i);
2562   sound_id_prefix[MAX_NUM_ELEMENTS + MAX_NUM_ELEMENTS] = NULL;
2563
2564   for (i=0; i<NUM_ACTIONS; i++)
2565     action_id_suffix[i] = element_action_info[i].suffix;
2566   action_id_suffix[NUM_ACTIONS] = NULL;
2567
2568   for (i=0; i<NUM_DIRECTIONS; i++)
2569     direction_id_suffix[i] = element_direction_info[i].suffix;
2570   direction_id_suffix[NUM_DIRECTIONS] = NULL;
2571
2572   for (i=0; i<NUM_SPECIAL_GFX_ARGS; i++)
2573     special_id_suffix[i] = special_suffix_info[i].suffix;
2574   special_id_suffix[NUM_SPECIAL_GFX_ARGS] = NULL;
2575
2576   InitImageList(image_config, NUM_IMAGE_FILES, image_config_suffix,
2577                 image_id_prefix, action_id_suffix, direction_id_suffix,
2578                 special_id_suffix, ignore_image_tokens);
2579   InitSoundList(sound_config, NUM_SOUND_FILES, sound_config_suffix,
2580                 sound_id_prefix, action_id_suffix, dummy,
2581                 special_id_suffix, ignore_sound_tokens);
2582 }
2583
2584 static void InitMixer()
2585 {
2586   OpenAudio();
2587   StartMixer();
2588 }
2589
2590 void InitGfx()
2591 {
2592   char *filename_font_initial = NULL;
2593   Bitmap *bitmap_font_initial = NULL;
2594   int i, j;
2595
2596   /* determine settings for initial font (for displaying startup messages) */
2597   for (i=0; image_config[i].token != NULL; i++)
2598   {
2599     for (j=0; j < NUM_INITIAL_FONTS; j++)
2600     {
2601       char font_token[128];
2602       int len_font_token;
2603
2604       sprintf(font_token, "%s_%d", CONFIG_TOKEN_FONT_INITIAL, j + 1);
2605       len_font_token = strlen(font_token);
2606
2607       if (strcmp(image_config[i].token, font_token) == 0)
2608         filename_font_initial = image_config[i].value;
2609       else if (strlen(image_config[i].token) > len_font_token &&
2610                strncmp(image_config[i].token, font_token, len_font_token) == 0)
2611       {
2612         if (strcmp(&image_config[i].token[len_font_token], ".x") == 0)
2613           font_initial[j].src_x = atoi(image_config[i].value);
2614         else if (strcmp(&image_config[i].token[len_font_token], ".y") == 0)
2615           font_initial[j].src_y = atoi(image_config[i].value);
2616         else if (strcmp(&image_config[i].token[len_font_token], ".width") == 0)
2617           font_initial[j].width = atoi(image_config[i].value);
2618         else if (strcmp(&image_config[i].token[len_font_token],".height") == 0)
2619           font_initial[j].height = atoi(image_config[i].value);
2620       }
2621     }
2622   }
2623
2624   for (j=0; j < NUM_INITIAL_FONTS; j++)
2625   {
2626     font_initial[j].num_chars = DEFAULT_NUM_CHARS_PER_FONT;
2627     font_initial[j].num_chars_per_line = DEFAULT_NUM_CHARS_PER_LINE;
2628   }
2629
2630   if (filename_font_initial == NULL)    /* should not happen */
2631     Error(ERR_EXIT, "cannot get filename for '%s'", CONFIG_TOKEN_FONT_INITIAL);
2632
2633   /* create additional image buffers for double-buffering */
2634   bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
2635   bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
2636
2637   /* initialize screen properties */
2638   InitGfxFieldInfo(SX, SY, SXSIZE, SYSIZE,
2639                    REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE,
2640                    bitmap_db_field);
2641   InitGfxDoor1Info(DX, DY, DXSIZE, DYSIZE);
2642   InitGfxDoor2Info(VX, VY, VXSIZE, VYSIZE);
2643   InitGfxScrollbufferInfo(FXSIZE, FYSIZE);
2644
2645   bitmap_font_initial = LoadCustomImage(filename_font_initial);
2646
2647   for (j=0; j < NUM_INITIAL_FONTS; j++)
2648     font_initial[j].bitmap = bitmap_font_initial;
2649
2650   InitFontGraphicInfo();
2651
2652   DrawInitText(WINDOW_TITLE_STRING, 20, FC_YELLOW);
2653   DrawInitText(WINDOW_SUBTITLE_STRING, 50, FC_RED);
2654
2655   DrawInitText("Loading graphics:", 120, FC_GREEN);
2656
2657   InitTileClipmasks();
2658 }
2659
2660 void InitGfxBackground()
2661 {
2662   int x, y;
2663
2664   drawto = backbuffer;
2665   fieldbuffer = bitmap_db_field;
2666   SetDrawtoField(DRAW_BACKBUFFER);
2667
2668   BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, backbuffer,
2669              0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
2670   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
2671   ClearRectangle(bitmap_db_door, 0, 0, 3 * DXSIZE, DYSIZE + VYSIZE);
2672
2673   for (x=0; x<MAX_BUF_XSIZE; x++)
2674     for (y=0; y<MAX_BUF_YSIZE; y++)
2675       redraw[x][y] = 0;
2676   redraw_tiles = 0;
2677   redraw_mask = REDRAW_ALL;
2678 }
2679
2680 static void InitLevelInfo()
2681 {
2682   LoadLevelInfo();                              /* global level info */
2683   LoadLevelSetup_LastSeries();                  /* last played series info */
2684   LoadLevelSetup_SeriesInfo();                  /* last played level info */
2685 }
2686
2687 void InitLevelArtworkInfo()
2688 {
2689   LoadLevelArtworkInfo();
2690 }
2691
2692 static void InitImages()
2693 {
2694   ReloadCustomImages();
2695
2696   LoadCustomElementDescriptions();
2697   LoadSpecialMenuDesignSettings();
2698
2699   ReinitializeGraphics();
2700 }
2701
2702 static void InitSound()
2703 {
2704   InitReloadCustomSounds(artwork.snd_current->identifier);
2705   ReinitializeSounds();
2706 }
2707
2708 static void InitMusic()
2709 {
2710   InitReloadCustomMusic(artwork.mus_current->identifier);
2711   ReinitializeMusic();
2712 }
2713
2714 void InitNetworkServer()
2715 {
2716 #if defined(PLATFORM_UNIX)
2717   int nr_wanted;
2718 #endif
2719
2720   if (!options.network)
2721     return;
2722
2723 #if defined(PLATFORM_UNIX)
2724   nr_wanted = Request("Choose player", REQ_PLAYER | REQ_STAY_CLOSED);
2725
2726   if (!ConnectToServer(options.server_host, options.server_port))
2727     Error(ERR_EXIT, "cannot connect to network game server");
2728
2729   SendToServer_PlayerName(setup.player_name);
2730   SendToServer_ProtocolVersion();
2731
2732   if (nr_wanted)
2733     SendToServer_NrWanted(nr_wanted);
2734 #endif
2735 }
2736
2737 void ReloadCustomArtwork()
2738 {
2739   static char *leveldir_current_identifier = NULL;
2740   static boolean last_override_level_graphics = FALSE;
2741   static boolean last_override_level_sounds = FALSE;
2742   static boolean last_override_level_music = FALSE;
2743   /* identifier for new artwork; default: artwork configured in setup */
2744   char *gfx_new_identifier = artwork.gfx_current->identifier;
2745   char *snd_new_identifier = artwork.snd_current->identifier;
2746   char *mus_new_identifier = artwork.mus_current->identifier;
2747   boolean redraw_screen = FALSE;
2748
2749   if (leveldir_current_identifier == NULL)
2750     leveldir_current_identifier = leveldir_current->identifier;
2751
2752 #if 0
2753   printf("CURRENT GFX: '%s' ['%s']\n", artwork.gfx_current->identifier,
2754          leveldir_current->graphics_set);
2755   printf("CURRENT LEV: '%s' / '%s'\n", leveldir_current_identifier,
2756          leveldir_current->identifier);
2757 #endif
2758
2759 #if 0
2760   printf("graphics --> '%s' ('%s')\n",
2761          artwork.gfx_current_identifier, artwork.gfx_current->filename);
2762   printf("sounds   --> '%s' ('%s')\n",
2763          artwork.snd_current_identifier, artwork.snd_current->filename);
2764   printf("music    --> '%s' ('%s')\n",
2765          artwork.mus_current_identifier, artwork.mus_current->filename);
2766 #endif
2767
2768   /* leveldir_current may be invalid (level group, parent link) */
2769   if (!validLevelSeries(leveldir_current))
2770     return;
2771
2772   /* when a new level series was selected, check if there was a change
2773      in custom artwork stored in level series directory */
2774   if (leveldir_current_identifier != leveldir_current->identifier)
2775   {
2776     char *identifier_old = leveldir_current_identifier;
2777     char *identifier_new = leveldir_current->identifier;
2778
2779     if (getTreeInfoFromIdentifier(artwork.gfx_first, identifier_old) !=
2780         getTreeInfoFromIdentifier(artwork.gfx_first, identifier_new))
2781       gfx_new_identifier = identifier_new;
2782     if (getTreeInfoFromIdentifier(artwork.snd_first, identifier_old) !=
2783         getTreeInfoFromIdentifier(artwork.snd_first, identifier_new))
2784       snd_new_identifier = identifier_new;
2785     if (getTreeInfoFromIdentifier(artwork.mus_first, identifier_new) !=
2786         getTreeInfoFromIdentifier(artwork.mus_first, identifier_new))
2787       mus_new_identifier = identifier_new;
2788
2789     leveldir_current_identifier = leveldir_current->identifier;
2790   }
2791
2792   /* custom level artwork configured in level series configuration file
2793      always overrides custom level artwork stored in level series directory
2794      and (level independant) custom artwork configured in setup menue */
2795   if (leveldir_current->graphics_set != NULL)
2796     gfx_new_identifier = leveldir_current->graphics_set;
2797   if (leveldir_current->sounds_set != NULL)
2798     snd_new_identifier = leveldir_current->sounds_set;
2799   if (leveldir_current->music_set != NULL)
2800     mus_new_identifier = leveldir_current->music_set;
2801
2802   if (strcmp(artwork.gfx_current_identifier, gfx_new_identifier) != 0 ||
2803       last_override_level_graphics != setup.override_level_graphics)
2804   {
2805 #if 0
2806     printf("RELOADING GRAPHICS '%s' -> '%s' ('%s')\n",
2807            artwork.gfx_current_identifier,
2808            artwork.gfx_current->identifier,
2809            gfx_new_identifier);
2810 #endif
2811
2812     setLevelArtworkDir(artwork.gfx_first);
2813
2814     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
2815
2816     InitImages();
2817
2818     FreeTileClipmasks();
2819     InitTileClipmasks();
2820
2821     artwork.gfx_current_identifier = artwork.gfx_current->identifier;
2822     last_override_level_graphics = setup.override_level_graphics;
2823
2824     redraw_screen = TRUE;
2825   }
2826
2827   if (strcmp(artwork.snd_current_identifier, snd_new_identifier) != 0 ||
2828       last_override_level_sounds != setup.override_level_sounds)
2829   {
2830 #if 0
2831     printf("RELOADING SOUNDS '%s' -> '%s' ('%s')\n",
2832            artwork.snd_current_identifier,
2833            artwork.snd_current->identifier,
2834            snd_new_identifier);
2835 #endif
2836
2837     /* set artwork path to send it to the sound server process */
2838     setLevelArtworkDir(artwork.snd_first);
2839
2840     InitReloadCustomSounds(snd_new_identifier);
2841     ReinitializeSounds();
2842
2843     artwork.snd_current_identifier = artwork.snd_current->identifier;
2844     last_override_level_sounds = setup.override_level_sounds;
2845
2846     redraw_screen = TRUE;
2847   }
2848
2849   if (strcmp(artwork.mus_current_identifier, mus_new_identifier) != 0 ||
2850       last_override_level_music != setup.override_level_music)
2851   {
2852     /* set artwork path to send it to the sound server process */
2853     setLevelArtworkDir(artwork.mus_first);
2854
2855     InitReloadCustomMusic(mus_new_identifier);
2856     ReinitializeMusic();
2857
2858     artwork.mus_current_identifier = artwork.mus_current->identifier;
2859     last_override_level_music = setup.override_level_music;
2860
2861     redraw_screen = TRUE;
2862   }
2863
2864   if (redraw_screen)
2865   {
2866     InitGfxBackground();
2867
2868     /* force redraw of (open or closed) door graphics */
2869     SetDoorState(DOOR_OPEN_ALL);
2870     CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
2871   }
2872 }
2873
2874
2875 /* ========================================================================= */
2876 /* OpenAll()                                                                 */
2877 /* ========================================================================= */
2878
2879 void OpenAll()
2880 {
2881   InitGlobal();         /* initialize some global variables */
2882
2883   if (options.execute_command)
2884     Execute_Command(options.execute_command);
2885
2886   if (options.serveronly)
2887   {
2888 #if defined(PLATFORM_UNIX)
2889     NetworkServer(options.server_port, options.serveronly);
2890 #else
2891     Error(ERR_WARN, "networking only supported in Unix version");
2892 #endif
2893     exit(0);    /* never reached */
2894   }
2895
2896   InitSetup();
2897
2898   InitPlayerInfo();
2899   InitArtworkInfo();            /* needed before loading gfx, sound & music */
2900   InitArtworkConfig();          /* needed before forking sound child process */
2901   InitMixer();
2902
2903   InitCounter();
2904
2905   InitRND(NEW_RANDOMIZE);
2906   InitSimpleRND(NEW_RANDOMIZE);
2907
2908   InitJoysticks();
2909
2910   InitVideoDisplay();
2911   InitVideoBuffer(&backbuffer, &window, WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH,
2912                   setup.fullscreen);
2913
2914   InitEventFilter(FilterMouseMotionEvents);
2915
2916   InitElementProperties();
2917
2918   InitGfx();
2919
2920   InitLevelInfo();
2921   InitLevelArtworkInfo();
2922
2923   InitImages();                 /* needs to know current level directory */
2924   InitSound();                  /* needs to know current level directory */
2925   InitMusic();                  /* needs to know current level directory */
2926
2927   InitGfxBackground();
2928
2929   if (global.autoplay_leveldir)
2930   {
2931     AutoPlayTape();
2932     return;
2933   }
2934
2935   game_status = MAINMENU;
2936
2937   DrawMainMenu();
2938
2939   InitNetworkServer();
2940 }
2941
2942 void CloseAllAndExit(int exit_value)
2943 {
2944   StopSounds();
2945   FreeAllSounds();
2946   FreeAllMusic();
2947   CloseAudio();         /* called after freeing sounds (needed for SDL) */
2948
2949   FreeAllImages();
2950   FreeTileClipmasks();
2951
2952   CloseVideoDisplay();
2953   ClosePlatformDependantStuff();
2954
2955   exit(exit_value);
2956 }