src/init.c

   1 /***********************************************************
   2 * Rocks'n'Diamonds -- McDuffin Strikes Back!               *
   3 *----------------------------------------------------------*
   4 * (c) 1995-2006 Artsoft Entertainment                      *
   5 *               Holger Schemel                             *
   6 *               Detmolder Strasse 189                      *
   7 *               33604 Bielefeld                            *
   8 *               Germany                                    *
   9 *               e-mail: info@artsoft.org                   *
  10 *----------------------------------------------------------*
  11 * init.c                                                   *
  12 ***********************************************************/
  13
  14 #include "libgame/libgame.h"
  15
  16 #include "init.h"
  17 #include "events.h"
  18 #include "screens.h"
  19 #include "editor.h"
  20 #include "game.h"
  21 #include "tape.h"
  22 #include "tools.h"
  23 #include "files.h"
  24 #include "network.h"
  25 #include "netserv.h"
  26 #include "cartoons.h"
  27 #include "config.h"
  28
  29 #include "conf_e2g.c"   /* include auto-generated data structure definitions */
  30 #include "conf_esg.c"   /* include auto-generated data structure definitions */
  31 #include "conf_e2s.c"   /* include auto-generated data structure definitions */
  32 #include "conf_fnt.c"   /* include auto-generated data structure definitions */
  33 #include "conf_g2s.c"   /* include auto-generated data structure definitions */
  34 #include "conf_g2m.c"   /* include auto-generated data structure definitions */
  35
  36
  37 #define CONFIG_TOKEN_FONT_INITIAL               "font.initial"
  38
  39
  40 static struct FontBitmapInfo font_initial[NUM_INITIAL_FONTS];
  41
  42 static int copy_properties[][5] =
  43 {
  44   {
  45     EL_BUG,
  46     EL_BUG_LEFT,                EL_BUG_RIGHT,
  47     EL_BUG_UP,                  EL_BUG_DOWN
  48   },
  49   {
  50     EL_SPACESHIP,
  51     EL_SPACESHIP_LEFT,          EL_SPACESHIP_RIGHT,
  52     EL_SPACESHIP_UP,            EL_SPACESHIP_DOWN
  53   },
  54   {
  55     EL_BD_BUTTERFLY,
  56     EL_BD_BUTTERFLY_LEFT,       EL_BD_BUTTERFLY_RIGHT,
  57     EL_BD_BUTTERFLY_UP,         EL_BD_BUTTERFLY_DOWN
  58   },
  59   {
  60     EL_BD_FIREFLY,
  61     EL_BD_FIREFLY_LEFT,         EL_BD_FIREFLY_RIGHT,
  62     EL_BD_FIREFLY_UP,           EL_BD_FIREFLY_DOWN
  63   },
  64   {
  65     EL_PACMAN,
  66     EL_PACMAN_LEFT,             EL_PACMAN_RIGHT,
  67     EL_PACMAN_UP,               EL_PACMAN_DOWN
  68   },
  69   {
  70     EL_YAMYAM,
  71     EL_YAMYAM_LEFT,             EL_YAMYAM_RIGHT,
  72     EL_YAMYAM_UP,               EL_YAMYAM_DOWN
  73   },
  74   {
  75     EL_MOLE,
  76     EL_MOLE_LEFT,               EL_MOLE_RIGHT,
  77     EL_MOLE_UP,                 EL_MOLE_DOWN
  78   },
  79   {
  80     -1,
  81     -1, -1, -1, -1
  82   }
  83 };
  84
  85 void FreeGadgets()
  86 {
  87   FreeLevelEditorGadgets();
  88   FreeGameButtons();
  89   FreeTapeButtons();
  90   FreeToolButtons();
  91   FreeScreenGadgets();
  92 }
  93
  94 void InitGadgets()
  95 {
  96   static boolean gadgets_initialized = FALSE;
  97
  98   if (gadgets_initialized)
  99     FreeGadgets();
 100
 101   CreateLevelEditorGadgets();
 102   CreateGameButtons();
 103   CreateTapeButtons();
 104   CreateToolButtons();
 105   CreateScreenGadgets();
 106
 107   InitGadgetsSoundCallback(PlaySoundActivating, PlaySoundSelecting);
 108
 109   gadgets_initialized = TRUE;
 110 }
 111
 112 inline void InitElementSmallImagesScaledUp(int graphic)
 113 {
 114   CreateImageWithSmallImages(graphic, graphic_info[graphic].scale_up_factor);
 115 }
 116
 117 void InitElementSmallImages()
 118 {
 119   static int special_graphics[] =
 120   {
 121     IMG_EDITOR_ELEMENT_BORDER,
 122     IMG_EDITOR_ELEMENT_BORDER_INPUT,
 123     IMG_EDITOR_CASCADE_LIST,
 124     IMG_EDITOR_CASCADE_LIST_ACTIVE,
 125     -1
 126   };
 127   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 128   int num_property_mappings = getImageListPropertyMappingSize();
 129   int i;
 130
 131   /* initialize normal images from static configuration */
 132   for (i = 0; element_to_graphic[i].element > -1; i++)
 133     InitElementSmallImagesScaledUp(element_to_graphic[i].graphic);
 134
 135   /* initialize special images from static configuration */
 136   for (i = 0; element_to_special_graphic[i].element > -1; i++)
 137     InitElementSmallImagesScaledUp(element_to_special_graphic[i].graphic);
 138
 139   /* initialize images from dynamic configuration (may be elements or other) */
 140   for (i = 0; i < num_property_mappings; i++)
 141     InitElementSmallImagesScaledUp(property_mapping[i].artwork_index);
 142
 143   /* initialize special images from above list (non-element images) */
 144   for (i = 0; special_graphics[i] > -1; i++)
 145     InitElementSmallImagesScaledUp(special_graphics[i]);
 146 }
 147
 148 void InitScaledImages()
 149 {
 150   int i;
 151
 152   /* scale normal images from static configuration, if not already scaled */
 153   for (i = 0; i < NUM_IMAGE_FILES; i++)
 154     ScaleImage(i, graphic_info[i].scale_up_factor);
 155 }
 156
 157 #if 1
 158 /* !!! FIX THIS (CHANGE TO USING NORMAL ELEMENT GRAPHIC DEFINITIONS) !!! */
 159 void SetBitmaps_EM(Bitmap **em_bitmap)
 160 {
 161   em_bitmap[0] = graphic_info[IMG_EMC_OBJECT].bitmap;
 162   em_bitmap[1] = graphic_info[IMG_EMC_SPRITE].bitmap;
 163 }
 164 #endif
 165
 166 static int getFontBitmapID(int font_nr)
 167 {
 168   int special = -1;
 169
 170   if (game_status >= GAME_MODE_TITLE && game_status <= GAME_MODE_PSEUDO_PREVIEW)
 171     special = game_status;
 172   else if (game_status == GAME_MODE_PSEUDO_TYPENAME)
 173     special = GFX_SPECIAL_ARG_MAIN;
 174   else if (game_status == GAME_MODE_PLAYING)
 175     special = GFX_SPECIAL_ARG_DOOR;
 176
 177   if (special != -1)
 178     return font_info[font_nr].special_bitmap_id[special];
 179   else
 180     return font_nr;
 181 }
 182
 183 void InitFontGraphicInfo()
 184 {
 185   static struct FontBitmapInfo *font_bitmap_info = NULL;
 186   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 187   int num_property_mappings = getImageListPropertyMappingSize();
 188   int num_font_bitmaps = NUM_FONTS;
 189   int i, j;
 190
 191   if (graphic_info == NULL)             /* still at startup phase */
 192   {
 193     InitFontInfo(font_initial, NUM_INITIAL_FONTS, getFontBitmapID);
 194
 195     return;
 196   }
 197
 198   /* ---------- initialize font graphic definitions ---------- */
 199
 200   /* always start with reliable default values (normal font graphics) */
 201   for (i = 0; i < NUM_FONTS; i++)
 202     font_info[i].graphic = IMG_FONT_INITIAL_1;
 203
 204   /* initialize normal font/graphic mapping from static configuration */
 205   for (i = 0; font_to_graphic[i].font_nr > -1; i++)
 206   {
 207     int font_nr = font_to_graphic[i].font_nr;
 208     int special = font_to_graphic[i].special;
 209     int graphic = font_to_graphic[i].graphic;
 210
 211     if (special != -1)
 212       continue;
 213
 214     font_info[font_nr].graphic = graphic;
 215   }
 216
 217   /* always start with reliable default values (special font graphics) */
 218   for (i = 0; i < NUM_FONTS; i++)
 219   {
 220     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 221     {
 222       font_info[i].special_graphic[j] = font_info[i].graphic;
 223       font_info[i].special_bitmap_id[j] = i;
 224     }
 225   }
 226
 227   /* initialize special font/graphic mapping from static configuration */
 228   for (i = 0; font_to_graphic[i].font_nr > -1; i++)
 229   {
 230     int font_nr      = font_to_graphic[i].font_nr;
 231     int special      = font_to_graphic[i].special;
 232     int graphic      = font_to_graphic[i].graphic;
 233     int base_graphic = font2baseimg(font_nr);
 234
 235     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 236     {
 237       boolean base_redefined =
 238         getImageListEntryFromImageID(base_graphic)->redefined;
 239       boolean special_redefined =
 240         getImageListEntryFromImageID(graphic)->redefined;
 241
 242       /* if the base font ("font.title_1", for example) has been redefined,
 243          but not the special font ("font.title_1.LEVELS", for example), do not
 244          use an existing (in this case considered obsolete) special font
 245          anymore, but use the automatically determined default font */
 246       if (base_redefined && !special_redefined)
 247         continue;
 248
 249       font_info[font_nr].special_graphic[special] = graphic;
 250       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
 251       num_font_bitmaps++;
 252     }
 253   }
 254
 255   /* initialize special font/graphic mapping from dynamic configuration */
 256   for (i = 0; i < num_property_mappings; i++)
 257   {
 258     int font_nr = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
 259     int special = property_mapping[i].ext3_index;
 260     int graphic = property_mapping[i].artwork_index;
 261
 262     if (font_nr < 0)
 263       continue;
 264
 265     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 266     {
 267       font_info[font_nr].special_graphic[special] = graphic;
 268       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
 269       num_font_bitmaps++;
 270     }
 271   }
 272
 273   /* reset non-redefined ".active" font graphics if normal font is redefined */
 274   /* (this different treatment is needed because normal and active fonts are
 275      independently defined ("active" is not a property of font definitions!) */
 276   for (i = 0; i < NUM_FONTS; i++)
 277   {
 278     int font_nr_base = i;
 279     int font_nr_active = FONT_ACTIVE(font_nr_base);
 280
 281     /* check only those fonts with exist as normal and ".active" variant */
 282     if (font_nr_base != font_nr_active)
 283     {
 284       int base_graphic = font_info[font_nr_base].graphic;
 285       int active_graphic = font_info[font_nr_active].graphic;
 286       boolean base_redefined =
 287         getImageListEntryFromImageID(base_graphic)->redefined;
 288       boolean active_redefined =
 289         getImageListEntryFromImageID(active_graphic)->redefined;
 290
 291       /* if the base font ("font.menu_1", for example) has been redefined,
 292          but not the active font ("font.menu_1.active", for example), do not
 293          use an existing (in this case considered obsolete) active font
 294          anymore, but use the automatically determined default font */
 295       if (base_redefined && !active_redefined)
 296         font_info[font_nr_active].graphic = base_graphic;
 297
 298       /* now also check each "special" font (which may be the same as above) */
 299       for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 300       {
 301         int base_graphic = font_info[font_nr_base].special_graphic[j];
 302         int active_graphic = font_info[font_nr_active].special_graphic[j];
 303         boolean base_redefined =
 304           getImageListEntryFromImageID(base_graphic)->redefined;
 305         boolean active_redefined =
 306           getImageListEntryFromImageID(active_graphic)->redefined;
 307
 308         /* same as above, but check special graphic definitions, for example:
 309            redefined "font.menu_1.MAIN" invalidates "font.menu_1.active.MAIN" */
 310         if (base_redefined && !active_redefined)
 311         {
 312           font_info[font_nr_active].special_graphic[j] =
 313             font_info[font_nr_base].special_graphic[j];
 314           font_info[font_nr_active].special_bitmap_id[j] =
 315             font_info[font_nr_base].special_bitmap_id[j];
 316         }
 317       }
 318     }
 319   }
 320
 321   /* ---------- initialize font bitmap array ---------- */
 322
 323   if (font_bitmap_info != NULL)
 324     FreeFontInfo(font_bitmap_info);
 325
 326   font_bitmap_info =
 327     checked_calloc(num_font_bitmaps * sizeof(struct FontBitmapInfo));
 328
 329   /* ---------- initialize font bitmap definitions ---------- */
 330
 331   for (i = 0; i < NUM_FONTS; i++)
 332   {
 333     if (i < NUM_INITIAL_FONTS)
 334     {
 335       font_bitmap_info[i] = font_initial[i];
 336       continue;
 337     }
 338
 339     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 340     {
 341       int font_bitmap_id = font_info[i].special_bitmap_id[j];
 342       int graphic = font_info[i].special_graphic[j];
 343
 344       /* set 'graphic_info' for font entries, if uninitialized (guessed) */
 345       if (graphic_info[graphic].anim_frames < MIN_NUM_CHARS_PER_FONT)
 346       {
 347         graphic_info[graphic].anim_frames = DEFAULT_NUM_CHARS_PER_FONT;
 348         graphic_info[graphic].anim_frames_per_line = DEFAULT_NUM_CHARS_PER_LINE;
 349       }
 350
 351       /* copy font relevant information from graphics information */
 352       font_bitmap_info[font_bitmap_id].bitmap = graphic_info[graphic].bitmap;
 353       font_bitmap_info[font_bitmap_id].src_x  = graphic_info[graphic].src_x;
 354       font_bitmap_info[font_bitmap_id].src_y  = graphic_info[graphic].src_y;
 355       font_bitmap_info[font_bitmap_id].width  = graphic_info[graphic].width;
 356       font_bitmap_info[font_bitmap_id].height = graphic_info[graphic].height;
 357
 358       font_bitmap_info[font_bitmap_id].draw_xoffset =
 359         graphic_info[graphic].draw_xoffset;
 360       font_bitmap_info[font_bitmap_id].draw_yoffset =
 361         graphic_info[graphic].draw_yoffset;
 362
 363       font_bitmap_info[font_bitmap_id].num_chars =
 364         graphic_info[graphic].anim_frames;
 365       font_bitmap_info[font_bitmap_id].num_chars_per_line =
 366         graphic_info[graphic].anim_frames_per_line;
 367     }
 368   }
 369
 370   InitFontInfo(font_bitmap_info, num_font_bitmaps, getFontBitmapID);
 371 }
 372
 373 void InitElementGraphicInfo()
 374 {
 375   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 376   int num_property_mappings = getImageListPropertyMappingSize();
 377   int i, act, dir;
 378
 379   if (graphic_info == NULL)             /* still at startup phase */
 380     return;
 381
 382   /* set values to -1 to identify later as "uninitialized" values */
 383   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 384   {
 385     for (act = 0; act < NUM_ACTIONS; act++)
 386     {
 387       element_info[i].graphic[act] = -1;
 388       element_info[i].crumbled[act] = -1;
 389
 390       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 391       {
 392         element_info[i].direction_graphic[act][dir] = -1;
 393         element_info[i].direction_crumbled[act][dir] = -1;
 394       }
 395     }
 396   }
 397
 398   /* initialize normal element/graphic mapping from static configuration */
 399   for (i = 0; element_to_graphic[i].element > -1; i++)
 400   {
 401     int element      = element_to_graphic[i].element;
 402     int action       = element_to_graphic[i].action;
 403     int direction    = element_to_graphic[i].direction;
 404     boolean crumbled = element_to_graphic[i].crumbled;
 405     int graphic      = element_to_graphic[i].graphic;
 406     int base_graphic = el2baseimg(element);
 407
 408     if (graphic_info[graphic].bitmap == NULL)
 409       continue;
 410
 411     if ((action > -1 || direction > -1 || crumbled == TRUE) &&
 412         base_graphic != -1)
 413     {
 414       boolean base_redefined =
 415         getImageListEntryFromImageID(base_graphic)->redefined;
 416       boolean act_dir_redefined =
 417         getImageListEntryFromImageID(graphic)->redefined;
 418
 419       /* if the base graphic ("emerald", for example) has been redefined,
 420          but not the action graphic ("emerald.falling", for example), do not
 421          use an existing (in this case considered obsolete) action graphic
 422          anymore, but use the automatically determined default graphic */
 423       if (base_redefined && !act_dir_redefined)
 424         continue;
 425     }
 426
 427     if (action < 0)
 428       action = ACTION_DEFAULT;
 429
 430     if (crumbled)
 431     {
 432       if (direction > -1)
 433         element_info[element].direction_crumbled[action][direction] = graphic;
 434       else
 435         element_info[element].crumbled[action] = graphic;
 436     }
 437     else
 438     {
 439       if (direction > -1)
 440         element_info[element].direction_graphic[action][direction] = graphic;
 441       else
 442         element_info[element].graphic[action] = graphic;
 443     }
 444   }
 445
 446   /* initialize normal element/graphic mapping from dynamic configuration */
 447   for (i = 0; i < num_property_mappings; i++)
 448   {
 449     int element   = property_mapping[i].base_index;
 450     int action    = property_mapping[i].ext1_index;
 451     int direction = property_mapping[i].ext2_index;
 452     int special   = property_mapping[i].ext3_index;
 453     int graphic   = property_mapping[i].artwork_index;
 454     boolean crumbled = FALSE;
 455
 456     if (special == GFX_SPECIAL_ARG_CRUMBLED)
 457     {
 458       special = -1;
 459       crumbled = TRUE;
 460     }
 461
 462     if (graphic_info[graphic].bitmap == NULL)
 463       continue;
 464
 465     if (element >= MAX_NUM_ELEMENTS || special != -1)
 466       continue;
 467
 468     if (action < 0)
 469       action = ACTION_DEFAULT;
 470
 471     if (crumbled)
 472     {
 473       if (direction < 0)
 474         for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 475           element_info[element].direction_crumbled[action][dir] = -1;
 476
 477       if (direction > -1)
 478         element_info[element].direction_crumbled[action][direction] = graphic;
 479       else
 480         element_info[element].crumbled[action] = graphic;
 481     }
 482     else
 483     {
 484       if (direction < 0)
 485         for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 486           element_info[element].direction_graphic[action][dir] = -1;
 487
 488       if (direction > -1)
 489         element_info[element].direction_graphic[action][direction] = graphic;
 490       else
 491         element_info[element].graphic[action] = graphic;
 492     }
 493   }
 494
 495   /* now copy all graphics that are defined to be cloned from other graphics */
 496   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 497   {
 498     int graphic = element_info[i].graphic[ACTION_DEFAULT];
 499     int crumbled_like, diggable_like;
 500
 501     if (graphic == -1)
 502       continue;
 503
 504     crumbled_like = graphic_info[graphic].crumbled_like;
 505     diggable_like = graphic_info[graphic].diggable_like;
 506
 507     if (crumbled_like != -1 && element_info[i].crumbled[ACTION_DEFAULT] == -1)
 508     {
 509       for (act = 0; act < NUM_ACTIONS; act++)
 510         element_info[i].crumbled[act] =
 511           element_info[crumbled_like].crumbled[act];
 512       for (act = 0; act < NUM_ACTIONS; act++)
 513         for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 514           element_info[i].direction_crumbled[act][dir] =
 515             element_info[crumbled_like].direction_crumbled[act][dir];
 516     }
 517
 518     if (diggable_like != -1 && element_info[i].graphic[ACTION_DIGGING] == -1)
 519     {
 520       element_info[i].graphic[ACTION_DIGGING] =
 521         element_info[diggable_like].graphic[ACTION_DIGGING];
 522       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 523         element_info[i].direction_graphic[ACTION_DIGGING][dir] =
 524           element_info[diggable_like].direction_graphic[ACTION_DIGGING][dir];
 525     }
 526   }
 527
 528 #if 1
 529   /* set hardcoded definitions for some runtime elements without graphic */
 530   element_info[EL_AMOEBA_TO_DIAMOND].graphic[ACTION_DEFAULT] = IMG_AMOEBA_DEAD;
 531 #endif
 532
 533 #if 1
 534   /* set hardcoded definitions for some internal elements without graphic */
 535   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 536   {
 537     if (IS_EDITOR_CASCADE_INACTIVE(i))
 538       element_info[i].graphic[ACTION_DEFAULT] = IMG_EDITOR_CASCADE_LIST;
 539     else if (IS_EDITOR_CASCADE_ACTIVE(i))
 540       element_info[i].graphic[ACTION_DEFAULT] = IMG_EDITOR_CASCADE_LIST_ACTIVE;
 541   }
 542 #endif
 543
 544   /* now set all undefined/invalid graphics to -1 to set to default after it */
 545   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 546   {
 547     for (act = 0; act < NUM_ACTIONS; act++)
 548     {
 549       int graphic;
 550
 551       graphic = element_info[i].graphic[act];
 552       if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 553         element_info[i].graphic[act] = -1;
 554
 555       graphic = element_info[i].crumbled[act];
 556       if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 557         element_info[i].crumbled[act] = -1;
 558
 559       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 560       {
 561         graphic = element_info[i].direction_graphic[act][dir];
 562         if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 563           element_info[i].direction_graphic[act][dir] = -1;
 564
 565         graphic = element_info[i].direction_crumbled[act][dir];
 566         if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
 567           element_info[i].direction_crumbled[act][dir] = -1;
 568       }
 569     }
 570   }
 571
 572   /* adjust graphics with 2nd tile for movement according to direction
 573      (do this before correcting '-1' values to minimize calculations) */
 574   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 575   {
 576     for (act = 0; act < NUM_ACTIONS; act++)
 577     {
 578       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 579       {
 580         int graphic = element_info[i].direction_graphic[act][dir];
 581         int move_dir = (act == ACTION_FALLING ? MV_BIT_DOWN : dir);
 582
 583         if (act == ACTION_FALLING)      /* special case */
 584           graphic = element_info[i].graphic[act];
 585
 586         if (graphic != -1 &&
 587             graphic_info[graphic].double_movement &&
 588             graphic_info[graphic].swap_double_tiles != 0)
 589         {
 590           struct GraphicInfo *g = &graphic_info[graphic];
 591           int src_x_front = g->src_x;
 592           int src_y_front = g->src_y;
 593           int src_x_back = g->src_x + g->offset2_x;
 594           int src_y_back = g->src_y + g->offset2_y;
 595           boolean frames_are_ordered_diagonally = (g->offset_x != 0 &&
 596                                                    g->offset_y != 0);
 597           boolean front_is_left_or_upper = (src_x_front < src_x_back ||
 598                                             src_y_front < src_y_back);
 599           boolean swap_movement_tiles_always = (g->swap_double_tiles == 1);
 600           boolean swap_movement_tiles_autodetected =
 601             (!frames_are_ordered_diagonally &&
 602              ((move_dir == MV_BIT_LEFT  && !front_is_left_or_upper) ||
 603               (move_dir == MV_BIT_UP    && !front_is_left_or_upper) ||
 604               (move_dir == MV_BIT_RIGHT &&  front_is_left_or_upper) ||
 605               (move_dir == MV_BIT_DOWN  &&  front_is_left_or_upper)));
 606           Bitmap *dummy;
 607
 608           /* swap frontside and backside graphic tile coordinates, if needed */
 609           if (swap_movement_tiles_always || swap_movement_tiles_autodetected)
 610           {
 611             /* get current (wrong) backside tile coordinates */
 612             getGraphicSourceExt(graphic, 0, &dummy, &src_x_back, &src_y_back,
 613                                 TRUE);
 614
 615             /* set frontside tile coordinates to backside tile coordinates */
 616             g->src_x = src_x_back;
 617             g->src_y = src_y_back;
 618
 619             /* invert tile offset to point to new backside tile coordinates */
 620             g->offset2_x *= -1;
 621             g->offset2_y *= -1;
 622
 623             /* do not swap front and backside tiles again after correction */
 624             g->swap_double_tiles = 0;
 625           }
 626         }
 627       }
 628     }
 629   }
 630
 631   /* now set all '-1' values to element specific default values */
 632   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 633   {
 634     int default_graphic = element_info[i].graphic[ACTION_DEFAULT];
 635     int default_crumbled = element_info[i].crumbled[ACTION_DEFAULT];
 636     int default_direction_graphic[NUM_DIRECTIONS_FULL];
 637     int default_direction_crumbled[NUM_DIRECTIONS_FULL];
 638
 639     if (default_graphic == -1)
 640       default_graphic = IMG_UNKNOWN;
 641 #if 1
 642     if (default_crumbled == -1)
 643       default_crumbled = default_graphic;
 644 #else
 645     /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
 646     if (default_crumbled == -1)
 647       default_crumbled = IMG_EMPTY;
 648 #endif
 649
 650     for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 651     {
 652       default_direction_graphic[dir] =
 653         element_info[i].direction_graphic[ACTION_DEFAULT][dir];
 654       default_direction_crumbled[dir] =
 655         element_info[i].direction_crumbled[ACTION_DEFAULT][dir];
 656
 657       if (default_direction_graphic[dir] == -1)
 658         default_direction_graphic[dir] = default_graphic;
 659 #if 1
 660       if (default_direction_crumbled[dir] == -1)
 661         default_direction_crumbled[dir] = default_direction_graphic[dir];
 662 #else
 663       /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
 664       if (default_direction_crumbled[dir] == -1)
 665         default_direction_crumbled[dir] = default_crumbled;
 666 #endif
 667     }
 668
 669     for (act = 0; act < NUM_ACTIONS; act++)
 670     {
 671       boolean act_remove = ((IS_DIGGABLE(i)    && act == ACTION_DIGGING)  ||
 672                             (IS_SNAPPABLE(i)   && act == ACTION_SNAPPING) ||
 673                             (IS_COLLECTIBLE(i) && act == ACTION_COLLECTING));
 674       boolean act_turning = (act == ACTION_TURNING_FROM_LEFT ||
 675                              act == ACTION_TURNING_FROM_RIGHT ||
 676                              act == ACTION_TURNING_FROM_UP ||
 677                              act == ACTION_TURNING_FROM_DOWN);
 678
 679       /* generic default action graphic (defined by "[default]" directive) */
 680       int default_action_graphic = element_info[EL_DEFAULT].graphic[act];
 681       int default_action_crumbled = element_info[EL_DEFAULT].crumbled[act];
 682       int default_remove_graphic = IMG_EMPTY;
 683
 684       if (act_remove && default_action_graphic != -1)
 685         default_remove_graphic = default_action_graphic;
 686
 687       /* look for special default action graphic (classic game specific) */
 688       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].graphic[act] != -1)
 689         default_action_graphic = element_info[EL_BD_DEFAULT].graphic[act];
 690       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].graphic[act] != -1)
 691         default_action_graphic = element_info[EL_SP_DEFAULT].graphic[act];
 692       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].graphic[act] != -1)
 693         default_action_graphic = element_info[EL_SB_DEFAULT].graphic[act];
 694
 695       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].crumbled[act] != -1)
 696         default_action_crumbled = element_info[EL_BD_DEFAULT].crumbled[act];
 697       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].crumbled[act] != -1)
 698         default_action_crumbled = element_info[EL_SP_DEFAULT].crumbled[act];
 699       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].crumbled[act] != -1)
 700         default_action_crumbled = element_info[EL_SB_DEFAULT].crumbled[act];
 701
 702 #if 1
 703       /* !!! needed because EL_EMPTY_SPACE treated as IS_SP_ELEMENT !!! */
 704       /* !!! make this better !!! */
 705       if (i == EL_EMPTY_SPACE)
 706       {
 707         default_action_graphic = element_info[EL_DEFAULT].graphic[act];
 708         default_action_crumbled = element_info[EL_DEFAULT].crumbled[act];
 709       }
 710 #endif
 711
 712       if (default_action_graphic == -1)
 713         default_action_graphic = default_graphic;
 714 #if 1
 715       if (default_action_crumbled == -1)
 716         default_action_crumbled = default_action_graphic;
 717 #else
 718       /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
 719       if (default_action_crumbled == -1)
 720         default_action_crumbled = default_crumbled;
 721 #endif
 722
 723       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 724       {
 725         /* use action graphic as the default direction graphic, if undefined */
 726         int default_action_direction_graphic = element_info[i].graphic[act];
 727         int default_action_direction_crumbled = element_info[i].crumbled[act];
 728
 729         /* no graphic for current action -- use default direction graphic */
 730         if (default_action_direction_graphic == -1)
 731           default_action_direction_graphic =
 732             (act_remove ? default_remove_graphic :
 733              act_turning ?
 734              element_info[i].direction_graphic[ACTION_TURNING][dir] :
 735              default_action_graphic != default_graphic ?
 736              default_action_graphic :
 737              default_direction_graphic[dir]);
 738
 739         if (element_info[i].direction_graphic[act][dir] == -1)
 740           element_info[i].direction_graphic[act][dir] =
 741             default_action_direction_graphic;
 742
 743 #if 1
 744         if (default_action_direction_crumbled == -1)
 745           default_action_direction_crumbled =
 746             element_info[i].direction_graphic[act][dir];
 747 #else
 748         if (default_action_direction_crumbled == -1)
 749           default_action_direction_crumbled =
 750             (act_remove ? default_remove_graphic :
 751              act_turning ?
 752              element_info[i].direction_crumbled[ACTION_TURNING][dir] :
 753              default_action_crumbled != default_crumbled ?
 754              default_action_crumbled :
 755              default_direction_crumbled[dir]);
 756 #endif
 757
 758         if (element_info[i].direction_crumbled[act][dir] == -1)
 759           element_info[i].direction_crumbled[act][dir] =
 760             default_action_direction_crumbled;
 761       }
 762
 763       /* no graphic for this specific action -- use default action graphic */
 764       if (element_info[i].graphic[act] == -1)
 765         element_info[i].graphic[act] =
 766           (act_remove ? default_remove_graphic :
 767            act_turning ? element_info[i].graphic[ACTION_TURNING] :
 768            default_action_graphic);
 769 #if 1
 770       if (element_info[i].crumbled[act] == -1)
 771         element_info[i].crumbled[act] = element_info[i].graphic[act];
 772 #else
 773       if (element_info[i].crumbled[act] == -1)
 774         element_info[i].crumbled[act] =
 775           (act_remove ? default_remove_graphic :
 776            act_turning ? element_info[i].crumbled[ACTION_TURNING] :
 777            default_action_crumbled);
 778 #endif
 779     }
 780   }
 781
 782 #if 0
 783   /* !!! THIS ALSO CLEARS SPECIAL FLAGS (AND IS NOT NEEDED ANYWAY) !!! */
 784   /* set animation mode to "none" for each graphic with only 1 frame */
 785   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 786   {
 787     for (act = 0; act < NUM_ACTIONS; act++)
 788     {
 789       int graphic = element_info[i].graphic[act];
 790       int crumbled = element_info[i].crumbled[act];
 791
 792       if (graphic_info[graphic].anim_frames == 1)
 793         graphic_info[graphic].anim_mode = ANIM_NONE;
 794       if (graphic_info[crumbled].anim_frames == 1)
 795         graphic_info[crumbled].anim_mode = ANIM_NONE;
 796
 797       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
 798       {
 799         graphic = element_info[i].direction_graphic[act][dir];
 800         crumbled = element_info[i].direction_crumbled[act][dir];
 801
 802         if (graphic_info[graphic].anim_frames == 1)
 803           graphic_info[graphic].anim_mode = ANIM_NONE;
 804         if (graphic_info[crumbled].anim_frames == 1)
 805           graphic_info[crumbled].anim_mode = ANIM_NONE;
 806       }
 807     }
 808   }
 809 #endif
 810
 811 #if 0
 812 #if DEBUG
 813   if (options.verbose)
 814   {
 815     for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 816       if (element_info[i].graphic[ACTION_DEFAULT] == IMG_UNKNOWN &&
 817           i != EL_UNKNOWN)
 818         Error(ERR_RETURN, "warning: no graphic for element '%s' (%d)",
 819               element_info[i].token_name, i);
 820   }
 821 #endif
 822 #endif
 823 }
 824
 825 void InitElementSpecialGraphicInfo()
 826 {
 827   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
 828   int num_property_mappings = getImageListPropertyMappingSize();
 829   int i, j;
 830
 831   /* always start with reliable default values */
 832   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 833     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 834       element_info[i].special_graphic[j] =
 835         element_info[i].graphic[ACTION_DEFAULT];
 836
 837   /* initialize special element/graphic mapping from static configuration */
 838   for (i = 0; element_to_special_graphic[i].element > -1; i++)
 839   {
 840     int element = element_to_special_graphic[i].element;
 841     int special = element_to_special_graphic[i].special;
 842     int graphic = element_to_special_graphic[i].graphic;
 843     int base_graphic = el2baseimg(element);
 844     boolean base_redefined =
 845       getImageListEntryFromImageID(base_graphic)->redefined;
 846     boolean special_redefined =
 847       getImageListEntryFromImageID(graphic)->redefined;
 848
 849     /* if the base graphic ("emerald", for example) has been redefined,
 850        but not the special graphic ("emerald.EDITOR", for example), do not
 851        use an existing (in this case considered obsolete) special graphic
 852        anymore, but use the automatically created (down-scaled) graphic */
 853     if (base_redefined && !special_redefined)
 854       continue;
 855
 856     element_info[element].special_graphic[special] = graphic;
 857   }
 858
 859   /* initialize special element/graphic mapping from dynamic configuration */
 860   for (i = 0; i < num_property_mappings; i++)
 861   {
 862     int element = property_mapping[i].base_index;
 863     int special = property_mapping[i].ext3_index;
 864     int graphic = property_mapping[i].artwork_index;
 865
 866     if (element >= MAX_NUM_ELEMENTS)
 867       continue;
 868
 869     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
 870       element_info[element].special_graphic[special] = graphic;
 871   }
 872
 873   /* now set all undefined/invalid graphics to default */
 874   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 875     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
 876       if (graphic_info[element_info[i].special_graphic[j]].bitmap == NULL)
 877         element_info[i].special_graphic[j] =
 878           element_info[i].graphic[ACTION_DEFAULT];
 879 }
 880
 881 static int get_graphic_parameter_value(char *value_raw, char *suffix, int type)
 882 {
 883   int i;
 884   int x = 0;
 885
 886   if (type != TYPE_TOKEN)
 887     return get_parameter_value(value_raw, suffix, type);
 888
 889   if (strEqual(value_raw, ARG_UNDEFINED))
 890     return ARG_UNDEFINED_VALUE;
 891
 892   /* !!! OPTIMIZE THIS BY USING HASH !!! */
 893   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
 894     if (strEqual(element_info[i].token_name, value_raw))
 895       return i;
 896
 897   /* !!! OPTIMIZE THIS BY USING HASH !!! */
 898   for (i = 0; image_config[i].token != NULL; i++)
 899   {
 900     int len_config_value = strlen(image_config[i].value);
 901
 902     if (!strEqual(&image_config[i].value[len_config_value - 4], ".pcx") &&
 903         !strEqual(&image_config[i].value[len_config_value - 4], ".wav") &&
 904         !strEqual(image_config[i].value, UNDEFINED_FILENAME))
 905       continue;
 906
 907     if (strEqual(image_config[i].token, value_raw))
 908       return x;
 909
 910     x++;
 911   }
 912
 913   return -1;
 914 }
 915
 916 static int get_scaled_graphic_width(int graphic)
 917 {
 918   int original_width = getOriginalImageWidthFromImageID(graphic);
 919   int scale_up_factor = graphic_info[graphic].scale_up_factor;
 920
 921   return original_width * scale_up_factor;
 922 }
 923
 924 static int get_scaled_graphic_height(int graphic)
 925 {
 926   int original_height = getOriginalImageHeightFromImageID(graphic);
 927   int scale_up_factor = graphic_info[graphic].scale_up_factor;
 928
 929   return original_height * scale_up_factor;
 930 }
 931
 932 static void set_graphic_parameters(int graphic)
 933 {
 934   struct FileInfo *image = getImageListEntryFromImageID(graphic);
 935   char **parameter_raw = image->parameter;
 936   Bitmap *src_bitmap = getBitmapFromImageID(graphic);
 937   int parameter[NUM_GFX_ARGS];
 938   int anim_frames_per_row = 1, anim_frames_per_col = 1;
 939   int anim_frames_per_line = 1;
 940   int i;
 941
 942   /* if fallback to default artwork is done, also use the default parameters */
 943   if (image->fallback_to_default)
 944     parameter_raw = image->default_parameter;
 945
 946   /* get integer values from string parameters */
 947   for (i = 0; i < NUM_GFX_ARGS; i++)
 948     parameter[i] = get_graphic_parameter_value(parameter_raw[i],
 949                                                image_config_suffix[i].token,
 950                                                image_config_suffix[i].type);
 951
 952   graphic_info[graphic].bitmap = src_bitmap;
 953
 954   /* always start with reliable default values */
 955   graphic_info[graphic].src_image_width = 0;
 956   graphic_info[graphic].src_image_height = 0;
 957   graphic_info[graphic].src_x = 0;
 958   graphic_info[graphic].src_y = 0;
 959   graphic_info[graphic].width  = TILEX; /* default for element graphics */
 960   graphic_info[graphic].height = TILEY; /* default for element graphics */
 961   graphic_info[graphic].offset_x = 0;   /* one or both of these values ... */
 962   graphic_info[graphic].offset_y = 0;   /* ... will be corrected later */
 963   graphic_info[graphic].offset2_x = 0;  /* one or both of these values ... */
 964   graphic_info[graphic].offset2_y = 0;  /* ... will be corrected later */
 965   graphic_info[graphic].swap_double_tiles = -1; /* auto-detect tile swapping */
 966   graphic_info[graphic].crumbled_like = -1;     /* do not use clone element */
 967   graphic_info[graphic].diggable_like = -1;     /* do not use clone element */
 968   graphic_info[graphic].border_size = TILEX / 8;  /* "CRUMBLED" border size */
 969   graphic_info[graphic].scale_up_factor = 1;    /* default: no scaling up */
 970   graphic_info[graphic].clone_from = -1;        /* do not use clone graphic */
 971   graphic_info[graphic].anim_delay_fixed = 0;
 972   graphic_info[graphic].anim_delay_random = 0;
 973   graphic_info[graphic].post_delay_fixed = 0;
 974   graphic_info[graphic].post_delay_random = 0;
 975   graphic_info[graphic].fade_delay = -1;
 976   graphic_info[graphic].post_delay = -1;
 977   graphic_info[graphic].auto_delay = -1;
 978
 979 #if 1
 980   /* optional zoom factor for scaling up the image to a larger size */
 981   if (parameter[GFX_ARG_SCALE_UP_FACTOR] != ARG_UNDEFINED_VALUE)
 982     graphic_info[graphic].scale_up_factor = parameter[GFX_ARG_SCALE_UP_FACTOR];
 983   if (graphic_info[graphic].scale_up_factor < 1)
 984     graphic_info[graphic].scale_up_factor = 1;          /* no scaling */
 985 #endif
 986
 987 #if 1
 988   if (graphic_info[graphic].use_image_size)
 989   {
 990     /* set new default bitmap size (with scaling, but without small images) */
 991     graphic_info[graphic].width  = get_scaled_graphic_width(graphic);
 992     graphic_info[graphic].height = get_scaled_graphic_height(graphic);
 993   }
 994 #endif
 995
 996   /* optional x and y tile position of animation frame sequence */
 997   if (parameter[GFX_ARG_XPOS] != ARG_UNDEFINED_VALUE)
 998     graphic_info[graphic].src_x = parameter[GFX_ARG_XPOS] * TILEX;
 999   if (parameter[GFX_ARG_YPOS] != ARG_UNDEFINED_VALUE)
1000     graphic_info[graphic].src_y = parameter[GFX_ARG_YPOS] * TILEY;
1001
1002   /* optional x and y pixel position of animation frame sequence */
1003   if (parameter[GFX_ARG_X] != ARG_UNDEFINED_VALUE)
1004     graphic_info[graphic].src_x = parameter[GFX_ARG_X];
1005   if (parameter[GFX_ARG_Y] != ARG_UNDEFINED_VALUE)
1006     graphic_info[graphic].src_y = parameter[GFX_ARG_Y];
1007
1008   /* optional width and height of each animation frame */
1009   if (parameter[GFX_ARG_WIDTH] != ARG_UNDEFINED_VALUE)
1010     graphic_info[graphic].width = parameter[GFX_ARG_WIDTH];
1011   if (parameter[GFX_ARG_HEIGHT] != ARG_UNDEFINED_VALUE)
1012     graphic_info[graphic].height = parameter[GFX_ARG_HEIGHT];
1013
1014 #if 0
1015   /* optional zoom factor for scaling up the image to a larger size */
1016   if (parameter[GFX_ARG_SCALE_UP_FACTOR] != ARG_UNDEFINED_VALUE)
1017     graphic_info[graphic].scale_up_factor = parameter[GFX_ARG_SCALE_UP_FACTOR];
1018   if (graphic_info[graphic].scale_up_factor < 1)
1019     graphic_info[graphic].scale_up_factor = 1;          /* no scaling */
1020 #endif
1021
1022   if (src_bitmap)
1023   {
1024     /* get final bitmap size (with scaling, but without small images) */
1025     int src_image_width  = get_scaled_graphic_width(graphic);
1026     int src_image_height = get_scaled_graphic_height(graphic);
1027
1028     anim_frames_per_row = src_image_width  / graphic_info[graphic].width;
1029     anim_frames_per_col = src_image_height / graphic_info[graphic].height;
1030
1031     graphic_info[graphic].src_image_width  = src_image_width;
1032     graphic_info[graphic].src_image_height = src_image_height;
1033   }
1034
1035   /* correct x or y offset dependent of vertical or horizontal frame order */
1036   if (parameter[GFX_ARG_VERTICAL])      /* frames are ordered vertically */
1037   {
1038     graphic_info[graphic].offset_y =
1039       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
1040        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].height);
1041     anim_frames_per_line = anim_frames_per_col;
1042   }
1043   else                                  /* frames are ordered horizontally */
1044   {
1045     graphic_info[graphic].offset_x =
1046       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
1047        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].width);
1048     anim_frames_per_line = anim_frames_per_row;
1049   }
1050
1051   /* optionally, the x and y offset of frames can be specified directly */
1052   if (parameter[GFX_ARG_XOFFSET] != ARG_UNDEFINED_VALUE)
1053     graphic_info[graphic].offset_x = parameter[GFX_ARG_XOFFSET];
1054   if (parameter[GFX_ARG_YOFFSET] != ARG_UNDEFINED_VALUE)
1055     graphic_info[graphic].offset_y = parameter[GFX_ARG_YOFFSET];
1056
1057   /* optionally, moving animations may have separate start and end graphics */
1058   graphic_info[graphic].double_movement = parameter[GFX_ARG_2ND_MOVEMENT_TILE];
1059
1060   if (parameter[GFX_ARG_2ND_VERTICAL] == ARG_UNDEFINED_VALUE)
1061     parameter[GFX_ARG_2ND_VERTICAL] = !parameter[GFX_ARG_VERTICAL];
1062
1063   /* correct x or y offset2 dependent of vertical or horizontal frame order */
1064   if (parameter[GFX_ARG_2ND_VERTICAL])  /* frames are ordered vertically */
1065     graphic_info[graphic].offset2_y =
1066       (parameter[GFX_ARG_2ND_OFFSET] != ARG_UNDEFINED_VALUE ?
1067        parameter[GFX_ARG_2ND_OFFSET] : graphic_info[graphic].height);
1068   else                                  /* frames are ordered horizontally */
1069     graphic_info[graphic].offset2_x =
1070       (parameter[GFX_ARG_2ND_OFFSET] != ARG_UNDEFINED_VALUE ?
1071        parameter[GFX_ARG_2ND_OFFSET] : graphic_info[graphic].width);
1072
1073   /* optionally, the x and y offset of 2nd graphic can be specified directly */
1074   if (parameter[GFX_ARG_2ND_XOFFSET] != ARG_UNDEFINED_VALUE)
1075     graphic_info[graphic].offset2_x = parameter[GFX_ARG_2ND_XOFFSET];
1076   if (parameter[GFX_ARG_2ND_YOFFSET] != ARG_UNDEFINED_VALUE)
1077     graphic_info[graphic].offset2_y = parameter[GFX_ARG_2ND_YOFFSET];
1078
1079   /* optionally, the second movement tile can be specified as start tile */
1080   if (parameter[GFX_ARG_2ND_SWAP_TILES] != ARG_UNDEFINED_VALUE)
1081     graphic_info[graphic].swap_double_tiles= parameter[GFX_ARG_2ND_SWAP_TILES];
1082
1083   /* automatically determine correct number of frames, if not defined */
1084   if (parameter[GFX_ARG_FRAMES] != ARG_UNDEFINED_VALUE)
1085     graphic_info[graphic].anim_frames = parameter[GFX_ARG_FRAMES];
1086   else if (parameter[GFX_ARG_XPOS] == 0 && !parameter[GFX_ARG_VERTICAL])
1087     graphic_info[graphic].anim_frames = anim_frames_per_row;
1088   else if (parameter[GFX_ARG_YPOS] == 0 && parameter[GFX_ARG_VERTICAL])
1089     graphic_info[graphic].anim_frames = anim_frames_per_col;
1090   else
1091     graphic_info[graphic].anim_frames = 1;
1092
1093   if (graphic_info[graphic].anim_frames == 0)   /* frames must be at least 1 */
1094     graphic_info[graphic].anim_frames = 1;
1095
1096   graphic_info[graphic].anim_frames_per_line =
1097     (parameter[GFX_ARG_FRAMES_PER_LINE] != ARG_UNDEFINED_VALUE ?
1098      parameter[GFX_ARG_FRAMES_PER_LINE] : anim_frames_per_line);
1099
1100   graphic_info[graphic].anim_delay = parameter[GFX_ARG_DELAY];
1101   if (graphic_info[graphic].anim_delay == 0)    /* delay must be at least 1 */
1102     graphic_info[graphic].anim_delay = 1;
1103
1104   graphic_info[graphic].anim_mode = parameter[GFX_ARG_ANIM_MODE];
1105 #if 0
1106   if (graphic_info[graphic].anim_frames == 1)
1107     graphic_info[graphic].anim_mode = ANIM_NONE;
1108 #endif
1109
1110   /* automatically determine correct start frame, if not defined */
1111   if (parameter[GFX_ARG_START_FRAME] == ARG_UNDEFINED_VALUE)
1112     graphic_info[graphic].anim_start_frame = 0;
1113   else if (graphic_info[graphic].anim_mode & ANIM_REVERSE)
1114     graphic_info[graphic].anim_start_frame =
1115       graphic_info[graphic].anim_frames - parameter[GFX_ARG_START_FRAME] - 1;
1116   else
1117     graphic_info[graphic].anim_start_frame = parameter[GFX_ARG_START_FRAME];
1118
1119   /* animation synchronized with global frame counter, not move position */
1120   graphic_info[graphic].anim_global_sync = parameter[GFX_ARG_GLOBAL_SYNC];
1121
1122   /* optional element for cloning crumble graphics */
1123   if (parameter[GFX_ARG_CRUMBLED_LIKE] != ARG_UNDEFINED_VALUE)
1124     graphic_info[graphic].crumbled_like = parameter[GFX_ARG_CRUMBLED_LIKE];
1125
1126   /* optional element for cloning digging graphics */
1127   if (parameter[GFX_ARG_DIGGABLE_LIKE] != ARG_UNDEFINED_VALUE)
1128     graphic_info[graphic].diggable_like = parameter[GFX_ARG_DIGGABLE_LIKE];
1129
1130   /* optional border size for "crumbling" diggable graphics */
1131   if (parameter[GFX_ARG_BORDER_SIZE] != ARG_UNDEFINED_VALUE)
1132     graphic_info[graphic].border_size = parameter[GFX_ARG_BORDER_SIZE];
1133
1134   /* this is only used for player "boring" and "sleeping" actions */
1135   if (parameter[GFX_ARG_ANIM_DELAY_FIXED] != ARG_UNDEFINED_VALUE)
1136     graphic_info[graphic].anim_delay_fixed =
1137       parameter[GFX_ARG_ANIM_DELAY_FIXED];
1138   if (parameter[GFX_ARG_ANIM_DELAY_RANDOM] != ARG_UNDEFINED_VALUE)
1139     graphic_info[graphic].anim_delay_random =
1140       parameter[GFX_ARG_ANIM_DELAY_RANDOM];
1141   if (parameter[GFX_ARG_POST_DELAY_FIXED] != ARG_UNDEFINED_VALUE)
1142     graphic_info[graphic].post_delay_fixed =
1143       parameter[GFX_ARG_POST_DELAY_FIXED];
1144   if (parameter[GFX_ARG_POST_DELAY_RANDOM] != ARG_UNDEFINED_VALUE)
1145     graphic_info[graphic].post_delay_random =
1146       parameter[GFX_ARG_POST_DELAY_RANDOM];
1147
1148   /* this is only used for toon animations */
1149   graphic_info[graphic].step_offset = parameter[GFX_ARG_STEP_OFFSET];
1150   graphic_info[graphic].step_delay  = parameter[GFX_ARG_STEP_DELAY];
1151
1152   /* this is only used for drawing font characters */
1153   graphic_info[graphic].draw_xoffset = parameter[GFX_ARG_DRAW_XOFFSET];
1154   graphic_info[graphic].draw_yoffset = parameter[GFX_ARG_DRAW_YOFFSET];
1155
1156   /* this is only used for drawing envelope graphics */
1157   graphic_info[graphic].draw_masked = parameter[GFX_ARG_DRAW_MASKED];
1158
1159   /* optional graphic for cloning all graphics settings */
1160   if (parameter[GFX_ARG_CLONE_FROM] != ARG_UNDEFINED_VALUE)
1161     graphic_info[graphic].clone_from = parameter[GFX_ARG_CLONE_FROM];
1162
1163   /* optional settings for drawing title screens */
1164   if (parameter[GFX_ARG_FADE_DELAY] != ARG_UNDEFINED_VALUE)
1165     graphic_info[graphic].fade_delay = parameter[GFX_ARG_FADE_DELAY];
1166   if (parameter[GFX_ARG_POST_DELAY] != ARG_UNDEFINED_VALUE)
1167     graphic_info[graphic].post_delay = parameter[GFX_ARG_POST_DELAY];
1168   if (parameter[GFX_ARG_AUTO_DELAY] != ARG_UNDEFINED_VALUE)
1169     graphic_info[graphic].auto_delay = parameter[GFX_ARG_AUTO_DELAY];
1170 }
1171
1172 static void set_cloned_graphic_parameters(int graphic)
1173 {
1174   int fallback_graphic = IMG_CHAR_EXCLAM;
1175   int max_num_images = getImageListSize();
1176   int clone_graphic = graphic_info[graphic].clone_from;
1177   int num_references_followed = 1;
1178
1179   while (graphic_info[clone_graphic].clone_from != -1 &&
1180          num_references_followed < max_num_images)
1181   {
1182     clone_graphic = graphic_info[clone_graphic].clone_from;
1183
1184     num_references_followed++;
1185   }
1186
1187   if (num_references_followed >= max_num_images)
1188   {
1189     Error(ERR_RETURN_LINE, "-");
1190     Error(ERR_RETURN, "warning: error found in config file:");
1191     Error(ERR_RETURN, "- config file: '%s'", getImageConfigFilename());
1192     Error(ERR_RETURN, "- config token: '%s'", getTokenFromImageID(graphic));
1193     Error(ERR_RETURN, "error: loop discovered when resolving cloned graphics");
1194     Error(ERR_RETURN, "custom graphic rejected for this element/action");
1195
1196     if (graphic == fallback_graphic)
1197       Error(ERR_EXIT, "fatal error: no fallback graphic available");
1198
1199     Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1200     Error(ERR_RETURN_LINE, "-");
1201
1202     graphic_info[graphic] = graphic_info[fallback_graphic];
1203   }
1204   else
1205   {
1206     graphic_info[graphic] = graphic_info[clone_graphic];
1207     graphic_info[graphic].clone_from = clone_graphic;
1208   }
1209 }
1210
1211 static void InitGraphicInfo()
1212 {
1213   int fallback_graphic = IMG_CHAR_EXCLAM;
1214   int num_images = getImageListSize();
1215   int i;
1216
1217 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1218   static boolean clipmasks_initialized = FALSE;
1219   Pixmap src_pixmap;
1220   XGCValues clip_gc_values;
1221   unsigned long clip_gc_valuemask;
1222   GC copy_clipmask_gc = None;
1223 #endif
1224
1225   /* use image size as default values for width and height for these images */
1226   static int full_size_graphics[] =
1227   {
1228     IMG_GLOBAL_BORDER,
1229     IMG_GLOBAL_DOOR,
1230
1231     IMG_BACKGROUND_ENVELOPE_1,
1232     IMG_BACKGROUND_ENVELOPE_2,
1233     IMG_BACKGROUND_ENVELOPE_3,
1234     IMG_BACKGROUND_ENVELOPE_4,
1235
1236     IMG_BACKGROUND,
1237     IMG_BACKGROUND_TITLE,
1238     IMG_BACKGROUND_MESSAGE,
1239     IMG_BACKGROUND_MAIN,
1240     IMG_BACKGROUND_LEVELS,
1241     IMG_BACKGROUND_SCORES,
1242     IMG_BACKGROUND_EDITOR,
1243     IMG_BACKGROUND_INFO,
1244     IMG_BACKGROUND_INFO_ELEMENTS,
1245     IMG_BACKGROUND_INFO_MUSIC,
1246     IMG_BACKGROUND_INFO_CREDITS,
1247     IMG_BACKGROUND_INFO_PROGRAM,
1248     IMG_BACKGROUND_INFO_LEVELSET,
1249     IMG_BACKGROUND_SETUP,
1250     IMG_BACKGROUND_DOOR,
1251
1252     IMG_TITLESCREEN_INITIAL_1,
1253     IMG_TITLESCREEN_INITIAL_2,
1254     IMG_TITLESCREEN_INITIAL_3,
1255     IMG_TITLESCREEN_INITIAL_4,
1256     IMG_TITLESCREEN_INITIAL_5,
1257     IMG_TITLESCREEN_1,
1258     IMG_TITLESCREEN_2,
1259     IMG_TITLESCREEN_3,
1260     IMG_TITLESCREEN_4,
1261     IMG_TITLESCREEN_5,
1262
1263     -1
1264   };
1265
1266   checked_free(graphic_info);
1267
1268   graphic_info = checked_calloc(num_images * sizeof(struct GraphicInfo));
1269
1270 #if 1
1271   /* initialize "use_image_size" flag with default value */
1272   for (i = 0; i < num_images; i++)
1273     graphic_info[i].use_image_size = FALSE;
1274
1275   /* initialize "use_image_size" flag from static configuration above */
1276   for (i = 0; full_size_graphics[i] != -1; i++)
1277     graphic_info[full_size_graphics[i]].use_image_size = TRUE;
1278 #endif
1279
1280 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1281   if (clipmasks_initialized)
1282   {
1283     for (i = 0; i < num_images; i++)
1284     {
1285       if (graphic_info[i].clip_mask)
1286         XFreePixmap(display, graphic_info[i].clip_mask);
1287       if (graphic_info[i].clip_gc)
1288         XFreeGC(display, graphic_info[i].clip_gc);
1289
1290       graphic_info[i].clip_mask = None;
1291       graphic_info[i].clip_gc = None;
1292     }
1293   }
1294 #endif
1295
1296   /* first set all graphic paramaters ... */
1297   for (i = 0; i < num_images; i++)
1298     set_graphic_parameters(i);
1299
1300   /* ... then copy these parameters for cloned graphics */
1301   for (i = 0; i < num_images; i++)
1302     if (graphic_info[i].clone_from != -1)
1303       set_cloned_graphic_parameters(i);
1304
1305   for (i = 0; i < num_images; i++)
1306   {
1307     Bitmap *src_bitmap;
1308     int src_x, src_y;
1309     int width, height;
1310     int first_frame, last_frame;
1311     int src_bitmap_width, src_bitmap_height;
1312
1313     /* now check if no animation frames are outside of the loaded image */
1314
1315     if (graphic_info[i].bitmap == NULL)
1316       continue;         /* skip check for optional images that are undefined */
1317
1318     /* get image size (this can differ from the standard element tile size!) */
1319     width  = graphic_info[i].width;
1320     height = graphic_info[i].height;
1321
1322     /* get final bitmap size (with scaling, but without small images) */
1323     src_bitmap_width  = graphic_info[i].src_image_width;
1324     src_bitmap_height = graphic_info[i].src_image_height;
1325
1326     /* check if first animation frame is inside specified bitmap */
1327
1328     first_frame = 0;
1329     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
1330
1331 #if 1
1332     /* this avoids calculating wrong start position for out-of-bounds frame */
1333     src_x = graphic_info[i].src_x;
1334     src_y = graphic_info[i].src_y;
1335 #endif
1336
1337     if (src_x < 0 || src_y < 0 ||
1338         src_x + width  > src_bitmap_width ||
1339         src_y + height > src_bitmap_height)
1340     {
1341       Error(ERR_RETURN_LINE, "-");
1342       Error(ERR_RETURN, "warning: error found in config file:");
1343       Error(ERR_RETURN, "- config file: '%s'", getImageConfigFilename());
1344       Error(ERR_RETURN, "- config token: '%s'", getTokenFromImageID(i));
1345       Error(ERR_RETURN, "- image file: '%s'", src_bitmap->source_filename);
1346       Error(ERR_RETURN,
1347             "error: first animation frame out of bounds (%d, %d) [%d, %d]",
1348             src_x, src_y, src_bitmap_width, src_bitmap_height);
1349       Error(ERR_RETURN, "custom graphic rejected for this element/action");
1350
1351       if (i == fallback_graphic)
1352         Error(ERR_EXIT, "fatal error: no fallback graphic available");
1353
1354       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1355       Error(ERR_RETURN_LINE, "-");
1356
1357       graphic_info[i] = graphic_info[fallback_graphic];
1358     }
1359
1360     /* check if last animation frame is inside specified bitmap */
1361
1362     last_frame = graphic_info[i].anim_frames - 1;
1363     getGraphicSource(i, last_frame, &src_bitmap, &src_x, &src_y);
1364
1365     if (src_x < 0 || src_y < 0 ||
1366         src_x + width  > src_bitmap_width ||
1367         src_y + height > src_bitmap_height)
1368     {
1369       Error(ERR_RETURN_LINE, "-");
1370       Error(ERR_RETURN, "warning: error found in config file:");
1371       Error(ERR_RETURN, "- config file: '%s'", getImageConfigFilename());
1372       Error(ERR_RETURN, "- config token: '%s'", getTokenFromImageID(i));
1373       Error(ERR_RETURN, "- image file: '%s'", src_bitmap->source_filename);
1374       Error(ERR_RETURN,
1375             "error: last animation frame (%d) out of bounds (%d, %d) [%d, %d]",
1376             last_frame, src_x, src_y, src_bitmap_width, src_bitmap_height);
1377       Error(ERR_RETURN, "custom graphic rejected for this element/action");
1378
1379       if (i == fallback_graphic)
1380         Error(ERR_EXIT, "fatal error: no fallback graphic available");
1381
1382       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1383       Error(ERR_RETURN_LINE, "-");
1384
1385       graphic_info[i] = graphic_info[fallback_graphic];
1386     }
1387
1388 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1389     /* currently we only need a tile clip mask from the first frame */
1390     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
1391
1392     if (copy_clipmask_gc == None)
1393     {
1394       clip_gc_values.graphics_exposures = False;
1395       clip_gc_valuemask = GCGraphicsExposures;
1396       copy_clipmask_gc = XCreateGC(display, src_bitmap->clip_mask,
1397                                    clip_gc_valuemask, &clip_gc_values);
1398     }
1399
1400     graphic_info[i].clip_mask =
1401       XCreatePixmap(display, window->drawable, TILEX, TILEY, 1);
1402
1403     src_pixmap = src_bitmap->clip_mask;
1404     XCopyArea(display, src_pixmap, graphic_info[i].clip_mask,
1405               copy_clipmask_gc, src_x, src_y, TILEX, TILEY, 0, 0);
1406
1407     clip_gc_values.graphics_exposures = False;
1408     clip_gc_values.clip_mask = graphic_info[i].clip_mask;
1409     clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
1410
1411     graphic_info[i].clip_gc =
1412       XCreateGC(display, window->drawable, clip_gc_valuemask, &clip_gc_values);
1413 #endif
1414   }
1415
1416 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1417   if (copy_clipmask_gc)
1418     XFreeGC(display, copy_clipmask_gc);
1419
1420   clipmasks_initialized = TRUE;
1421 #endif
1422 }
1423
1424 static void InitElementSoundInfo()
1425 {
1426   struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
1427   int num_property_mappings = getSoundListPropertyMappingSize();
1428   int i, j, act;
1429
1430   /* set values to -1 to identify later as "uninitialized" values */
1431   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1432     for (act = 0; act < NUM_ACTIONS; act++)
1433       element_info[i].sound[act] = -1;
1434
1435   /* initialize element/sound mapping from static configuration */
1436   for (i = 0; element_to_sound[i].element > -1; i++)
1437   {
1438     int element      = element_to_sound[i].element;
1439     int action       = element_to_sound[i].action;
1440     int sound        = element_to_sound[i].sound;
1441     boolean is_class = element_to_sound[i].is_class;
1442
1443     if (action < 0)
1444       action = ACTION_DEFAULT;
1445
1446     if (!is_class)
1447       element_info[element].sound[action] = sound;
1448     else
1449       for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1450         if (strEqual(element_info[j].class_name,
1451                      element_info[element].class_name))
1452           element_info[j].sound[action] = sound;
1453   }
1454
1455   /* initialize element class/sound mapping from dynamic configuration */
1456   for (i = 0; i < num_property_mappings; i++)
1457   {
1458     int element_class = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
1459     int action        = property_mapping[i].ext1_index;
1460     int sound         = property_mapping[i].artwork_index;
1461
1462     if (element_class < 0 || element_class >= MAX_NUM_ELEMENTS)
1463       continue;
1464
1465     if (action < 0)
1466       action = ACTION_DEFAULT;
1467
1468     for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1469       if (strEqual(element_info[j].class_name,
1470                    element_info[element_class].class_name))
1471         element_info[j].sound[action] = sound;
1472   }
1473
1474   /* initialize element/sound mapping from dynamic configuration */
1475   for (i = 0; i < num_property_mappings; i++)
1476   {
1477     int element = property_mapping[i].base_index;
1478     int action  = property_mapping[i].ext1_index;
1479     int sound   = property_mapping[i].artwork_index;
1480
1481     if (element >= MAX_NUM_ELEMENTS)
1482       continue;
1483
1484     if (action < 0)
1485       action = ACTION_DEFAULT;
1486
1487     element_info[element].sound[action] = sound;
1488   }
1489
1490   /* now set all '-1' values to element specific default values */
1491   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1492   {
1493     for (act = 0; act < NUM_ACTIONS; act++)
1494     {
1495       /* generic default action sound (defined by "[default]" directive) */
1496       int default_action_sound = element_info[EL_DEFAULT].sound[act];
1497
1498       /* look for special default action sound (classic game specific) */
1499       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].sound[act] != -1)
1500         default_action_sound = element_info[EL_BD_DEFAULT].sound[act];
1501       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].sound[act] != -1)
1502         default_action_sound = element_info[EL_SP_DEFAULT].sound[act];
1503       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].sound[act] != -1)
1504         default_action_sound = element_info[EL_SB_DEFAULT].sound[act];
1505
1506       /* !!! there's no such thing as a "default action sound" !!! */
1507 #if 0
1508       /* look for element specific default sound (independent from action) */
1509       if (element_info[i].sound[ACTION_DEFAULT] != -1)
1510         default_action_sound = element_info[i].sound[ACTION_DEFAULT];
1511 #endif
1512
1513 #if 1
1514       /* !!! needed because EL_EMPTY_SPACE treated as IS_SP_ELEMENT !!! */
1515       /* !!! make this better !!! */
1516       if (i == EL_EMPTY_SPACE)
1517         default_action_sound = element_info[EL_DEFAULT].sound[act];
1518 #endif
1519
1520       /* no sound for this specific action -- use default action sound */
1521       if (element_info[i].sound[act] == -1)
1522         element_info[i].sound[act] = default_action_sound;
1523     }
1524   }
1525
1526   /* copy sound settings to some elements that are only stored in level file
1527      in native R'n'D levels, but are used by game engine in native EM levels */
1528   for (i = 0; copy_properties[i][0] != -1; i++)
1529     for (j = 1; j <= 4; j++)
1530       for (act = 0; act < NUM_ACTIONS; act++)
1531         element_info[copy_properties[i][j]].sound[act] =
1532           element_info[copy_properties[i][0]].sound[act];
1533 }
1534
1535 static void InitGameModeSoundInfo()
1536 {
1537   int i;
1538
1539   /* set values to -1 to identify later as "uninitialized" values */
1540   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1541     menu.sound[i] = -1;
1542
1543   /* initialize gamemode/sound mapping from static configuration */
1544   for (i = 0; gamemode_to_sound[i].sound > -1; i++)
1545   {
1546     int gamemode = gamemode_to_sound[i].gamemode;
1547     int sound    = gamemode_to_sound[i].sound;
1548
1549     if (gamemode < 0)
1550       gamemode = GAME_MODE_DEFAULT;
1551
1552     menu.sound[gamemode] = sound;
1553   }
1554
1555   /* now set all '-1' values to levelset specific default values */
1556   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1557     if (menu.sound[i] == -1)
1558       menu.sound[i] = menu.sound[GAME_MODE_DEFAULT];
1559
1560 #if 0
1561   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1562     if (menu.sound[i] != -1)
1563       printf("::: menu.sound[%d] == %d\n", i, menu.sound[i]);
1564 #endif
1565 }
1566
1567 static void set_sound_parameters(int sound, char **parameter_raw)
1568 {
1569   int parameter[NUM_SND_ARGS];
1570   int i;
1571
1572   /* get integer values from string parameters */
1573   for (i = 0; i < NUM_SND_ARGS; i++)
1574     parameter[i] =
1575       get_parameter_value(parameter_raw[i],
1576                           sound_config_suffix[i].token,
1577                           sound_config_suffix[i].type);
1578
1579   /* explicit loop mode setting in configuration overrides default value */
1580   if (parameter[SND_ARG_MODE_LOOP] != ARG_UNDEFINED_VALUE)
1581     sound_info[sound].loop = parameter[SND_ARG_MODE_LOOP];
1582
1583   /* sound volume to change the original volume when loading the sound file */
1584   sound_info[sound].volume = parameter[SND_ARG_VOLUME];
1585
1586   /* sound priority to give certain sounds a higher or lower priority */
1587   sound_info[sound].volume = parameter[SND_ARG_VOLUME];
1588 }
1589
1590 static void InitSoundInfo()
1591 {
1592   int *sound_effect_properties;
1593   int num_sounds = getSoundListSize();
1594   int i, j;
1595
1596   checked_free(sound_info);
1597
1598   sound_effect_properties = checked_calloc(num_sounds * sizeof(int));
1599   sound_info = checked_calloc(num_sounds * sizeof(struct SoundInfo));
1600
1601   /* initialize sound effect for all elements to "no sound" */
1602   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1603     for (j = 0; j < NUM_ACTIONS; j++)
1604       element_info[i].sound[j] = SND_UNDEFINED;
1605
1606   for (i = 0; i < num_sounds; i++)
1607   {
1608     struct FileInfo *sound = getSoundListEntry(i);
1609     int len_effect_text = strlen(sound->token);
1610
1611     sound_effect_properties[i] = ACTION_OTHER;
1612     sound_info[i].loop = FALSE;         /* default: play sound only once */
1613
1614 #if 0
1615     printf("::: sound %d: '%s'\n", i, sound->token);
1616 #endif
1617
1618     /* determine all loop sounds and identify certain sound classes */
1619
1620     for (j = 0; element_action_info[j].suffix; j++)
1621     {
1622       int len_action_text = strlen(element_action_info[j].suffix);
1623
1624       if (len_action_text < len_effect_text &&
1625           strEqual(&sound->token[len_effect_text - len_action_text],
1626                    element_action_info[j].suffix))
1627       {
1628         sound_effect_properties[i] = element_action_info[j].value;
1629         sound_info[i].loop = element_action_info[j].is_loop_sound;
1630
1631         break;
1632       }
1633     }
1634
1635     /* associate elements and some selected sound actions */
1636
1637     for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1638     {
1639       if (element_info[j].class_name)
1640       {
1641         int len_class_text = strlen(element_info[j].class_name);
1642
1643         if (len_class_text + 1 < len_effect_text &&
1644             strncmp(sound->token,
1645                     element_info[j].class_name, len_class_text) == 0 &&
1646             sound->token[len_class_text] == '.')
1647         {
1648           int sound_action_value = sound_effect_properties[i];
1649
1650           element_info[j].sound[sound_action_value] = i;
1651         }
1652       }
1653     }
1654
1655     set_sound_parameters(i, sound->parameter);
1656   }
1657
1658   free(sound_effect_properties);
1659 }
1660
1661 static void InitGameModeMusicInfo()
1662 {
1663   struct PropertyMapping *property_mapping = getMusicListPropertyMapping();
1664   int num_property_mappings = getMusicListPropertyMappingSize();
1665   int default_levelset_music = -1;
1666   int i;
1667
1668   /* set values to -1 to identify later as "uninitialized" values */
1669   for (i = 0; i < MAX_LEVELS; i++)
1670     levelset.music[i] = -1;
1671   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1672     menu.music[i] = -1;
1673
1674   /* initialize gamemode/music mapping from static configuration */
1675   for (i = 0; gamemode_to_music[i].music > -1; i++)
1676   {
1677     int gamemode = gamemode_to_music[i].gamemode;
1678     int music    = gamemode_to_music[i].music;
1679
1680 #if 0
1681     printf("::: gamemode == %d, music == %d\n", gamemode, music);
1682 #endif
1683
1684     if (gamemode < 0)
1685       gamemode = GAME_MODE_DEFAULT;
1686
1687     menu.music[gamemode] = music;
1688   }
1689
1690   /* initialize gamemode/music mapping from dynamic configuration */
1691   for (i = 0; i < num_property_mappings; i++)
1692   {
1693     int prefix   = property_mapping[i].base_index;
1694     int gamemode = property_mapping[i].ext1_index;
1695     int level    = property_mapping[i].ext2_index;
1696     int music    = property_mapping[i].artwork_index;
1697
1698 #if 0
1699     printf("::: prefix == %d, gamemode == %d, level == %d, music == %d\n",
1700            prefix, gamemode, level, music);
1701 #endif
1702
1703     if (prefix < 0 || prefix >= NUM_MUSIC_PREFIXES)
1704       continue;
1705
1706     if (gamemode < 0)
1707       gamemode = GAME_MODE_DEFAULT;
1708
1709     /* level specific music only allowed for in-game music */
1710     if (level != -1 && gamemode == GAME_MODE_DEFAULT)
1711       gamemode = GAME_MODE_PLAYING;
1712
1713     if (level == -1)
1714     {
1715       level = 0;
1716       default_levelset_music = music;
1717     }
1718
1719     if (gamemode == GAME_MODE_PLAYING || gamemode == GAME_MODE_DEFAULT)
1720       levelset.music[level] = music;
1721     if (gamemode != GAME_MODE_PLAYING)
1722       menu.music[gamemode] = music;
1723   }
1724
1725   /* now set all '-1' values to menu specific default values */
1726   /* (undefined values of "levelset.music[]" might stay at "-1" to
1727      allow dynamic selection of music files from music directory!) */
1728   for (i = 0; i < MAX_LEVELS; i++)
1729     if (levelset.music[i] == -1)
1730       levelset.music[i] = default_levelset_music;
1731   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1732     if (menu.music[i] == -1)
1733       menu.music[i] = menu.music[GAME_MODE_DEFAULT];
1734
1735 #if 0
1736   for (i = 0; i < MAX_LEVELS; i++)
1737     if (levelset.music[i] != -1)
1738       printf("::: levelset.music[%d] == %d\n", i, levelset.music[i]);
1739   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1740     if (menu.music[i] != -1)
1741       printf("::: menu.music[%d] == %d\n", i, menu.music[i]);
1742 #endif
1743 }
1744
1745 static void set_music_parameters(int music, char **parameter_raw)
1746 {
1747   int parameter[NUM_MUS_ARGS];
1748   int i;
1749
1750   /* get integer values from string parameters */
1751   for (i = 0; i < NUM_MUS_ARGS; i++)
1752     parameter[i] =
1753       get_parameter_value(parameter_raw[i],
1754                           music_config_suffix[i].token,
1755                           music_config_suffix[i].type);
1756
1757   /* explicit loop mode setting in configuration overrides default value */
1758   if (parameter[MUS_ARG_MODE_LOOP] != ARG_UNDEFINED_VALUE)
1759     music_info[music].loop = parameter[MUS_ARG_MODE_LOOP];
1760 }
1761
1762 static void InitMusicInfo()
1763 {
1764   int num_music = getMusicListSize();
1765   int i, j;
1766
1767   checked_free(music_info);
1768
1769   music_info = checked_calloc(num_music * sizeof(struct MusicInfo));
1770
1771   for (i = 0; i < num_music; i++)
1772   {
1773     struct FileInfo *music = getMusicListEntry(i);
1774     int len_music_text = strlen(music->token);
1775
1776     music_info[i].loop = TRUE;          /* default: play music in loop mode */
1777
1778     /* determine all loop music */
1779
1780     for (j = 0; music_prefix_info[j].prefix; j++)
1781     {
1782       int len_prefix_text = strlen(music_prefix_info[j].prefix);
1783
1784       if (len_prefix_text < len_music_text &&
1785           strncmp(music->token,
1786                   music_prefix_info[j].prefix, len_prefix_text) == 0)
1787       {
1788         music_info[i].loop = music_prefix_info[j].is_loop_music;
1789
1790         break;
1791       }
1792     }
1793
1794     set_music_parameters(i, music->parameter);
1795   }
1796 }
1797
1798 static void ReinitializeGraphics()
1799 {
1800   InitGraphicInfo();                    /* graphic properties mapping */
1801   InitElementGraphicInfo();             /* element game graphic mapping */
1802   InitElementSpecialGraphicInfo();      /* element special graphic mapping */
1803
1804   InitElementSmallImages();             /* scale elements to all needed sizes */
1805   InitScaledImages();                   /* scale all other images, if needed */
1806   InitFontGraphicInfo();                /* initialize text drawing functions */
1807
1808   InitGraphicInfo_EM();                 /* graphic mapping for EM engine */
1809
1810   SetMainBackgroundImage(IMG_BACKGROUND);
1811   SetDoorBackgroundImage(IMG_BACKGROUND_DOOR);
1812
1813   InitGadgets();
1814   InitToons();
1815 }
1816
1817 static void ReinitializeSounds()
1818 {
1819   InitSoundInfo();              /* sound properties mapping */
1820   InitElementSoundInfo();       /* element game sound mapping */
1821   InitGameModeSoundInfo();      /* game mode sound mapping */
1822
1823   InitPlayLevelSound();         /* internal game sound settings */
1824 }
1825
1826 static void ReinitializeMusic()
1827 {
1828   InitMusicInfo();              /* music properties mapping */
1829   InitGameModeMusicInfo();      /* game mode music mapping */
1830 }
1831
1832 static int get_special_property_bit(int element, int property_bit_nr)
1833 {
1834   struct PropertyBitInfo
1835   {
1836     int element;
1837     int bit_nr;
1838   };
1839
1840   static struct PropertyBitInfo pb_can_move_into_acid[] =
1841   {
1842     /* the player may be able fall into acid when gravity is activated */
1843     { EL_PLAYER_1,              0       },
1844     { EL_PLAYER_2,              0       },
1845     { EL_PLAYER_3,              0       },
1846     { EL_PLAYER_4,              0       },
1847     { EL_SP_MURPHY,             0       },
1848     { EL_SOKOBAN_FIELD_PLAYER,  0       },
1849
1850     /* all elements that can move may be able to also move into acid */
1851     { EL_BUG,                   1       },
1852     { EL_BUG_LEFT,              1       },
1853     { EL_BUG_RIGHT,             1       },
1854     { EL_BUG_UP,                1       },
1855     { EL_BUG_DOWN,              1       },
1856     { EL_SPACESHIP,             2       },
1857     { EL_SPACESHIP_LEFT,        2       },
1858     { EL_SPACESHIP_RIGHT,       2       },
1859     { EL_SPACESHIP_UP,          2       },
1860     { EL_SPACESHIP_DOWN,        2       },
1861     { EL_BD_BUTTERFLY,          3       },
1862     { EL_BD_BUTTERFLY_LEFT,     3       },
1863     { EL_BD_BUTTERFLY_RIGHT,    3       },
1864     { EL_BD_BUTTERFLY_UP,       3       },
1865     { EL_BD_BUTTERFLY_DOWN,     3       },
1866     { EL_BD_FIREFLY,            4       },
1867     { EL_BD_FIREFLY_LEFT,       4       },
1868     { EL_BD_FIREFLY_RIGHT,      4       },
1869     { EL_BD_FIREFLY_UP,         4       },
1870     { EL_BD_FIREFLY_DOWN,       4       },
1871     { EL_YAMYAM,                5       },
1872     { EL_YAMYAM_LEFT,           5       },
1873     { EL_YAMYAM_RIGHT,          5       },
1874     { EL_YAMYAM_UP,             5       },
1875     { EL_YAMYAM_DOWN,           5       },
1876     { EL_DARK_YAMYAM,           6       },
1877     { EL_ROBOT,                 7       },
1878     { EL_PACMAN,                8       },
1879     { EL_PACMAN_LEFT,           8       },
1880     { EL_PACMAN_RIGHT,          8       },
1881     { EL_PACMAN_UP,             8       },
1882     { EL_PACMAN_DOWN,           8       },
1883     { EL_MOLE,                  9       },
1884     { EL_MOLE_LEFT,             9       },
1885     { EL_MOLE_RIGHT,            9       },
1886     { EL_MOLE_UP,               9       },
1887     { EL_MOLE_DOWN,             9       },
1888     { EL_PENGUIN,               10      },
1889     { EL_PIG,                   11      },
1890     { EL_DRAGON,                12      },
1891     { EL_SATELLITE,             13      },
1892     { EL_SP_SNIKSNAK,           14      },
1893     { EL_SP_ELECTRON,           15      },
1894     { EL_BALLOON,               16      },
1895     { EL_SPRING,                17      },
1896     { EL_EMC_ANDROID,           18      },
1897
1898     { -1,                       -1      },
1899   };
1900
1901   static struct PropertyBitInfo pb_dont_collide_with[] =
1902   {
1903     { EL_SP_SNIKSNAK,           0       },
1904     { EL_SP_ELECTRON,           1       },
1905
1906     { -1,                       -1      },
1907   };
1908
1909   static struct
1910   {
1911     int bit_nr;
1912     struct PropertyBitInfo *pb_info;
1913   } pb_definition[] =
1914   {
1915     { EP_CAN_MOVE_INTO_ACID,    pb_can_move_into_acid   },
1916     { EP_DONT_COLLIDE_WITH,     pb_dont_collide_with    },
1917
1918     { -1,                       NULL                    },
1919   };
1920
1921   struct PropertyBitInfo *pb_info = NULL;
1922   int i;
1923
1924   for (i = 0; pb_definition[i].bit_nr != -1; i++)
1925     if (pb_definition[i].bit_nr == property_bit_nr)
1926       pb_info = pb_definition[i].pb_info;
1927
1928   if (pb_info == NULL)
1929     return -1;
1930
1931   for (i = 0; pb_info[i].element != -1; i++)
1932     if (pb_info[i].element == element)
1933       return pb_info[i].bit_nr;
1934
1935   return -1;
1936 }
1937
1938 void setBitfieldProperty(int *bitfield, int property_bit_nr, int element,
1939                          boolean property_value)
1940 {
1941   int bit_nr = get_special_property_bit(element, property_bit_nr);
1942
1943   if (bit_nr > -1)
1944   {
1945     if (property_value)
1946       *bitfield |=  (1 << bit_nr);
1947     else
1948       *bitfield &= ~(1 << bit_nr);
1949   }
1950 }
1951
1952 boolean getBitfieldProperty(int *bitfield, int property_bit_nr, int element)
1953 {
1954   int bit_nr = get_special_property_bit(element, property_bit_nr);
1955
1956   if (bit_nr > -1)
1957     return ((*bitfield & (1 << bit_nr)) != 0);
1958
1959   return FALSE;
1960 }
1961
1962 static void resolve_group_element(int group_element, int recursion_depth)
1963 {
1964   static int group_nr;
1965   static struct ElementGroupInfo *group;
1966   struct ElementGroupInfo *actual_group = element_info[group_element].group;
1967   int i;
1968
1969   if (actual_group == NULL)                     /* not yet initialized */
1970     return;
1971
1972   if (recursion_depth > NUM_GROUP_ELEMENTS)     /* recursion too deep */
1973   {
1974     Error(ERR_WARN, "recursion too deep when resolving group element %d",
1975           group_element - EL_GROUP_START + 1);
1976
1977     /* replace element which caused too deep recursion by question mark */
1978     group->element_resolved[group->num_elements_resolved++] = EL_UNKNOWN;
1979
1980     return;
1981   }
1982
1983   if (recursion_depth == 0)                     /* initialization */
1984   {
1985     group = actual_group;
1986     group_nr = group_element - EL_GROUP_START;
1987
1988     group->num_elements_resolved = 0;
1989     group->choice_pos = 0;
1990   }
1991
1992   for (i = 0; i < actual_group->num_elements; i++)
1993   {
1994     int element = actual_group->element[i];
1995
1996     if (group->num_elements_resolved == NUM_FILE_ELEMENTS)
1997       break;
1998
1999     if (IS_GROUP_ELEMENT(element))
2000       resolve_group_element(element, recursion_depth + 1);
2001     else
2002     {
2003       group->element_resolved[group->num_elements_resolved++] = element;
2004       element_info[element].in_group[group_nr] = TRUE;
2005     }
2006   }
2007 }
2008
2009 void InitElementPropertiesStatic()
2010 {
2011   static int ep_diggable[] =
2012   {
2013     EL_SAND,
2014     EL_SP_BASE,
2015     EL_SP_BUGGY_BASE,
2016     EL_SP_BUGGY_BASE_ACTIVATING,
2017     EL_TRAP,
2018     EL_INVISIBLE_SAND,
2019     EL_INVISIBLE_SAND_ACTIVE,
2020     EL_EMC_GRASS,
2021
2022     /* !!! currently not diggable, but handled by 'ep_dont_run_into' !!! */
2023     /* (if amoeba can grow into anything diggable, maybe keep these out) */
2024 #if 0
2025     EL_LANDMINE,
2026     EL_TRAP_ACTIVE,
2027     EL_SP_BUGGY_BASE_ACTIVE,
2028     EL_EMC_PLANT,
2029 #endif
2030
2031     -1
2032   };
2033
2034   static int ep_collectible_only[] =
2035   {
2036     EL_BD_DIAMOND,
2037     EL_EMERALD,
2038     EL_DIAMOND,
2039     EL_EMERALD_YELLOW,
2040     EL_EMERALD_RED,
2041     EL_EMERALD_PURPLE,
2042     EL_KEY_1,
2043     EL_KEY_2,
2044     EL_KEY_3,
2045     EL_KEY_4,
2046     EL_EM_KEY_1,
2047     EL_EM_KEY_2,
2048     EL_EM_KEY_3,
2049     EL_EM_KEY_4,
2050     EL_EMC_KEY_5,
2051     EL_EMC_KEY_6,
2052     EL_EMC_KEY_7,
2053     EL_EMC_KEY_8,
2054     EL_DYNAMITE,
2055     EL_EM_DYNAMITE,
2056     EL_DYNABOMB_INCREASE_NUMBER,
2057     EL_DYNABOMB_INCREASE_SIZE,
2058     EL_DYNABOMB_INCREASE_POWER,
2059     EL_SP_INFOTRON,
2060     EL_SP_DISK_RED,
2061     EL_PEARL,
2062     EL_CRYSTAL,
2063     EL_KEY_WHITE,
2064     EL_SHIELD_NORMAL,
2065     EL_SHIELD_DEADLY,
2066     EL_EXTRA_TIME,
2067     EL_ENVELOPE_1,
2068     EL_ENVELOPE_2,
2069     EL_ENVELOPE_3,
2070     EL_ENVELOPE_4,
2071     EL_SPEED_PILL,
2072     EL_EMC_LENSES,
2073     EL_EMC_MAGNIFIER,
2074
2075     -1
2076   };
2077
2078   static int ep_dont_run_into[] =
2079   {
2080     /* same elements as in 'ep_dont_touch' */
2081     EL_BUG,
2082     EL_SPACESHIP,
2083     EL_BD_BUTTERFLY,
2084     EL_BD_FIREFLY,
2085
2086     /* same elements as in 'ep_dont_collide_with' */
2087     EL_YAMYAM,
2088     EL_DARK_YAMYAM,
2089     EL_ROBOT,
2090     EL_PACMAN,
2091     EL_SP_SNIKSNAK,
2092     EL_SP_ELECTRON,
2093
2094     /* new elements */
2095     EL_AMOEBA_DROP,
2096     EL_ACID,
2097
2098     /* !!! maybe this should better be handled by 'ep_diggable' !!! */
2099 #if 1
2100     EL_LANDMINE,
2101     EL_TRAP_ACTIVE,
2102     EL_SP_BUGGY_BASE_ACTIVE,
2103     EL_EMC_PLANT,
2104 #endif
2105
2106     -1
2107   };
2108
2109   static int ep_dont_collide_with[] =
2110   {
2111     /* same elements as in 'ep_dont_touch' */
2112     EL_BUG,
2113     EL_SPACESHIP,
2114     EL_BD_BUTTERFLY,
2115     EL_BD_FIREFLY,
2116
2117     /* new elements */
2118     EL_YAMYAM,
2119     EL_DARK_YAMYAM,
2120     EL_ROBOT,
2121     EL_PACMAN,
2122     EL_SP_SNIKSNAK,
2123     EL_SP_ELECTRON,
2124
2125     -1
2126   };
2127
2128   static int ep_dont_touch[] =
2129   {
2130     EL_BUG,
2131     EL_SPACESHIP,
2132     EL_BD_BUTTERFLY,
2133     EL_BD_FIREFLY,
2134
2135     -1
2136   };
2137
2138   static int ep_indestructible[] =
2139   {
2140     EL_STEELWALL,
2141     EL_ACID,
2142     EL_ACID_POOL_TOPLEFT,
2143     EL_ACID_POOL_TOPRIGHT,
2144     EL_ACID_POOL_BOTTOMLEFT,
2145     EL_ACID_POOL_BOTTOM,
2146     EL_ACID_POOL_BOTTOMRIGHT,
2147     EL_SP_HARDWARE_GRAY,
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_1,
2153     EL_SP_HARDWARE_BASE_2,
2154     EL_SP_HARDWARE_BASE_3,
2155     EL_SP_HARDWARE_BASE_4,
2156     EL_SP_HARDWARE_BASE_5,
2157     EL_SP_HARDWARE_BASE_6,
2158     EL_INVISIBLE_STEELWALL,
2159     EL_INVISIBLE_STEELWALL_ACTIVE,
2160     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2161     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2162     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2163     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2164     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2165     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2166     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2167     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2168     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2169     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2170     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2171     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2172     EL_LIGHT_SWITCH,
2173     EL_LIGHT_SWITCH_ACTIVE,
2174     EL_SIGN_EXCLAMATION,
2175     EL_SIGN_RADIOACTIVITY,
2176     EL_SIGN_STOP,
2177     EL_SIGN_WHEELCHAIR,
2178     EL_SIGN_PARKING,
2179     EL_SIGN_NO_ENTRY,
2180     EL_SIGN_UNUSED_1,
2181     EL_SIGN_GIVE_WAY,
2182     EL_SIGN_ENTRY_FORBIDDEN,
2183     EL_SIGN_EMERGENCY_EXIT,
2184     EL_SIGN_YIN_YANG,
2185     EL_SIGN_UNUSED_2,
2186     EL_SIGN_SPERMS,
2187     EL_SIGN_BULLET,
2188     EL_SIGN_HEART,
2189     EL_SIGN_CROSS,
2190     EL_SIGN_FRANKIE,
2191     EL_STEEL_EXIT_CLOSED,
2192     EL_STEEL_EXIT_OPEN,
2193     EL_DC_STEELWALL_1_LEFT,
2194     EL_DC_STEELWALL_1_RIGHT,
2195     EL_DC_STEELWALL_1_TOP,
2196     EL_DC_STEELWALL_1_BOTTOM,
2197     EL_DC_STEELWALL_1_HORIZONTAL,
2198     EL_DC_STEELWALL_1_VERTICAL,
2199     EL_DC_STEELWALL_1_TOPLEFT,
2200     EL_DC_STEELWALL_1_TOPRIGHT,
2201     EL_DC_STEELWALL_1_BOTTOMLEFT,
2202     EL_DC_STEELWALL_1_BOTTOMRIGHT,
2203     EL_DC_STEELWALL_1_TOPLEFT_2,
2204     EL_DC_STEELWALL_1_TOPRIGHT_2,
2205     EL_DC_STEELWALL_1_BOTTOMLEFT_2,
2206     EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
2207     EL_DC_STEELWALL_2_LEFT,
2208     EL_DC_STEELWALL_2_RIGHT,
2209     EL_DC_STEELWALL_2_TOP,
2210     EL_DC_STEELWALL_2_BOTTOM,
2211     EL_DC_STEELWALL_2_HORIZONTAL,
2212     EL_DC_STEELWALL_2_VERTICAL,
2213     EL_DC_STEELWALL_2_MIDDLE,
2214     EL_DC_STEELWALL_2_SINGLE,
2215     EL_STEELWALL_SLIPPERY,
2216     EL_EMC_STEELWALL_1,
2217     EL_EMC_STEELWALL_2,
2218     EL_EMC_STEELWALL_3,
2219     EL_EMC_STEELWALL_4,
2220     EL_CRYSTAL,
2221     EL_GATE_1,
2222     EL_GATE_2,
2223     EL_GATE_3,
2224     EL_GATE_4,
2225     EL_GATE_1_GRAY,
2226     EL_GATE_2_GRAY,
2227     EL_GATE_3_GRAY,
2228     EL_GATE_4_GRAY,
2229     EL_GATE_1_GRAY_ACTIVE,
2230     EL_GATE_2_GRAY_ACTIVE,
2231     EL_GATE_3_GRAY_ACTIVE,
2232     EL_GATE_4_GRAY_ACTIVE,
2233     EL_EM_GATE_1,
2234     EL_EM_GATE_2,
2235     EL_EM_GATE_3,
2236     EL_EM_GATE_4,
2237     EL_EM_GATE_1_GRAY,
2238     EL_EM_GATE_2_GRAY,
2239     EL_EM_GATE_3_GRAY,
2240     EL_EM_GATE_4_GRAY,
2241     EL_EM_GATE_1_GRAY_ACTIVE,
2242     EL_EM_GATE_2_GRAY_ACTIVE,
2243     EL_EM_GATE_3_GRAY_ACTIVE,
2244     EL_EM_GATE_4_GRAY_ACTIVE,
2245     EL_EMC_GATE_5,
2246     EL_EMC_GATE_6,
2247     EL_EMC_GATE_7,
2248     EL_EMC_GATE_8,
2249     EL_EMC_GATE_5_GRAY,
2250     EL_EMC_GATE_6_GRAY,
2251     EL_EMC_GATE_7_GRAY,
2252     EL_EMC_GATE_8_GRAY,
2253     EL_EMC_GATE_5_GRAY_ACTIVE,
2254     EL_EMC_GATE_6_GRAY_ACTIVE,
2255     EL_EMC_GATE_7_GRAY_ACTIVE,
2256     EL_EMC_GATE_8_GRAY_ACTIVE,
2257     EL_SWITCHGATE_OPEN,
2258     EL_SWITCHGATE_OPENING,
2259     EL_SWITCHGATE_CLOSED,
2260     EL_SWITCHGATE_CLOSING,
2261 #if 0
2262     EL_SWITCHGATE_SWITCH_UP,
2263     EL_SWITCHGATE_SWITCH_DOWN,
2264 #endif
2265     EL_TIMEGATE_OPEN,
2266     EL_TIMEGATE_OPENING,
2267     EL_TIMEGATE_CLOSED,
2268     EL_TIMEGATE_CLOSING,
2269 #if 0
2270     EL_TIMEGATE_SWITCH,
2271     EL_TIMEGATE_SWITCH_ACTIVE,
2272 #endif
2273     EL_TUBE_ANY,
2274     EL_TUBE_VERTICAL,
2275     EL_TUBE_HORIZONTAL,
2276     EL_TUBE_VERTICAL_LEFT,
2277     EL_TUBE_VERTICAL_RIGHT,
2278     EL_TUBE_HORIZONTAL_UP,
2279     EL_TUBE_HORIZONTAL_DOWN,
2280     EL_TUBE_LEFT_UP,
2281     EL_TUBE_LEFT_DOWN,
2282     EL_TUBE_RIGHT_UP,
2283     EL_TUBE_RIGHT_DOWN,
2284
2285     -1
2286   };
2287
2288   static int ep_slippery[] =
2289   {
2290     EL_WALL_SLIPPERY,
2291     EL_BD_WALL,
2292     EL_ROCK,
2293     EL_BD_ROCK,
2294     EL_EMERALD,
2295     EL_BD_DIAMOND,
2296     EL_EMERALD_YELLOW,
2297     EL_EMERALD_RED,
2298     EL_EMERALD_PURPLE,
2299     EL_DIAMOND,
2300     EL_BOMB,
2301     EL_NUT,
2302     EL_ROBOT_WHEEL_ACTIVE,
2303     EL_ROBOT_WHEEL,
2304     EL_TIME_ORB_FULL,
2305     EL_TIME_ORB_EMPTY,
2306     EL_LAMP_ACTIVE,
2307     EL_LAMP,
2308     EL_ACID_POOL_TOPLEFT,
2309     EL_ACID_POOL_TOPRIGHT,
2310     EL_SATELLITE,
2311     EL_SP_ZONK,
2312     EL_SP_INFOTRON,
2313     EL_SP_CHIP_SINGLE,
2314     EL_SP_CHIP_LEFT,
2315     EL_SP_CHIP_RIGHT,
2316     EL_SP_CHIP_TOP,
2317     EL_SP_CHIP_BOTTOM,
2318     EL_SPEED_PILL,
2319     EL_STEELWALL_SLIPPERY,
2320     EL_PEARL,
2321     EL_CRYSTAL,
2322     EL_EMC_WALL_SLIPPERY_1,
2323     EL_EMC_WALL_SLIPPERY_2,
2324     EL_EMC_WALL_SLIPPERY_3,
2325     EL_EMC_WALL_SLIPPERY_4,
2326     EL_EMC_MAGIC_BALL,
2327     EL_EMC_MAGIC_BALL_ACTIVE,
2328
2329     -1
2330   };
2331
2332   static int ep_can_change[] =
2333   {
2334     -1
2335   };
2336
2337   static int ep_can_move[] =
2338   {
2339     /* same elements as in 'pb_can_move_into_acid' */
2340     EL_BUG,
2341     EL_SPACESHIP,
2342     EL_BD_BUTTERFLY,
2343     EL_BD_FIREFLY,
2344     EL_YAMYAM,
2345     EL_DARK_YAMYAM,
2346     EL_ROBOT,
2347     EL_PACMAN,
2348     EL_MOLE,
2349     EL_PENGUIN,
2350     EL_PIG,
2351     EL_DRAGON,
2352     EL_SATELLITE,
2353     EL_SP_SNIKSNAK,
2354     EL_SP_ELECTRON,
2355     EL_BALLOON,
2356     EL_SPRING,
2357     EL_EMC_ANDROID,
2358
2359     -1
2360   };
2361
2362   static int ep_can_fall[] =
2363   {
2364     EL_ROCK,
2365     EL_BD_ROCK,
2366     EL_EMERALD,
2367     EL_BD_DIAMOND,
2368     EL_EMERALD_YELLOW,
2369     EL_EMERALD_RED,
2370     EL_EMERALD_PURPLE,
2371     EL_DIAMOND,
2372     EL_BOMB,
2373     EL_NUT,
2374     EL_AMOEBA_DROP,
2375     EL_QUICKSAND_FULL,
2376     EL_MAGIC_WALL_FULL,
2377     EL_BD_MAGIC_WALL_FULL,
2378     EL_TIME_ORB_FULL,
2379     EL_TIME_ORB_EMPTY,
2380     EL_SP_ZONK,
2381     EL_SP_INFOTRON,
2382     EL_SP_DISK_ORANGE,
2383     EL_PEARL,
2384     EL_CRYSTAL,
2385     EL_SPRING,
2386     EL_DX_SUPABOMB,
2387
2388     -1
2389   };
2390
2391   static int ep_can_smash_player[] =
2392   {
2393     EL_ROCK,
2394     EL_BD_ROCK,
2395     EL_EMERALD,
2396     EL_BD_DIAMOND,
2397     EL_EMERALD_YELLOW,
2398     EL_EMERALD_RED,
2399     EL_EMERALD_PURPLE,
2400     EL_DIAMOND,
2401     EL_BOMB,
2402     EL_NUT,
2403     EL_AMOEBA_DROP,
2404     EL_TIME_ORB_FULL,
2405     EL_TIME_ORB_EMPTY,
2406     EL_SP_ZONK,
2407     EL_SP_INFOTRON,
2408     EL_SP_DISK_ORANGE,
2409     EL_PEARL,
2410     EL_CRYSTAL,
2411     EL_SPRING,
2412     EL_DX_SUPABOMB,
2413
2414     -1
2415   };
2416
2417   static int ep_can_smash_enemies[] =
2418   {
2419     EL_ROCK,
2420     EL_BD_ROCK,
2421     EL_SP_ZONK,
2422
2423     -1
2424   };
2425
2426   static int ep_can_smash_everything[] =
2427   {
2428     EL_ROCK,
2429     EL_BD_ROCK,
2430     EL_SP_ZONK,
2431
2432     -1
2433   };
2434
2435   static int ep_explodes_by_fire[] =
2436   {
2437     /* same elements as in 'ep_explodes_impact' */
2438     EL_BOMB,
2439     EL_SP_DISK_ORANGE,
2440     EL_DX_SUPABOMB,
2441
2442     /* same elements as in 'ep_explodes_smashed' */
2443     EL_SATELLITE,
2444     EL_PIG,
2445     EL_DRAGON,
2446     EL_MOLE,
2447
2448     /* new elements */
2449     EL_DYNAMITE,
2450     EL_DYNAMITE_ACTIVE,
2451     EL_EM_DYNAMITE,
2452     EL_EM_DYNAMITE_ACTIVE,
2453     EL_DYNABOMB_PLAYER_1_ACTIVE,
2454     EL_DYNABOMB_PLAYER_2_ACTIVE,
2455     EL_DYNABOMB_PLAYER_3_ACTIVE,
2456     EL_DYNABOMB_PLAYER_4_ACTIVE,
2457     EL_DYNABOMB_INCREASE_NUMBER,
2458     EL_DYNABOMB_INCREASE_SIZE,
2459     EL_DYNABOMB_INCREASE_POWER,
2460     EL_SP_DISK_RED_ACTIVE,
2461     EL_BUG,
2462     EL_PENGUIN,
2463     EL_SP_DISK_RED,
2464     EL_SP_DISK_YELLOW,
2465     EL_SP_SNIKSNAK,
2466     EL_SP_ELECTRON,
2467 #if 0
2468     EL_BLACK_ORB,
2469 #endif
2470
2471     -1
2472   };
2473
2474   static int ep_explodes_smashed[] =
2475   {
2476     /* same elements as in 'ep_explodes_impact' */
2477     EL_BOMB,
2478     EL_SP_DISK_ORANGE,
2479     EL_DX_SUPABOMB,
2480
2481     /* new elements */
2482     EL_SATELLITE,
2483     EL_PIG,
2484     EL_DRAGON,
2485     EL_MOLE,
2486
2487     -1
2488   };
2489
2490   static int ep_explodes_impact[] =
2491   {
2492     EL_BOMB,
2493     EL_SP_DISK_ORANGE,
2494     EL_DX_SUPABOMB,
2495
2496     -1
2497   };
2498
2499   static int ep_walkable_over[] =
2500   {
2501     EL_EMPTY_SPACE,
2502     EL_SP_EMPTY_SPACE,
2503     EL_SOKOBAN_FIELD_EMPTY,
2504     EL_EXIT_OPEN,
2505     EL_SP_EXIT_OPEN,
2506     EL_SP_EXIT_OPENING,
2507     EL_STEEL_EXIT_OPEN,
2508     EL_GATE_1,
2509     EL_GATE_2,
2510     EL_GATE_3,
2511     EL_GATE_4,
2512     EL_GATE_1_GRAY,
2513     EL_GATE_2_GRAY,
2514     EL_GATE_3_GRAY,
2515     EL_GATE_4_GRAY,
2516     EL_GATE_1_GRAY_ACTIVE,
2517     EL_GATE_2_GRAY_ACTIVE,
2518     EL_GATE_3_GRAY_ACTIVE,
2519     EL_GATE_4_GRAY_ACTIVE,
2520     EL_PENGUIN,
2521     EL_PIG,
2522     EL_DRAGON,
2523
2524     -1
2525   };
2526
2527   static int ep_walkable_inside[] =
2528   {
2529     EL_TUBE_ANY,
2530     EL_TUBE_VERTICAL,
2531     EL_TUBE_HORIZONTAL,
2532     EL_TUBE_VERTICAL_LEFT,
2533     EL_TUBE_VERTICAL_RIGHT,
2534     EL_TUBE_HORIZONTAL_UP,
2535     EL_TUBE_HORIZONTAL_DOWN,
2536     EL_TUBE_LEFT_UP,
2537     EL_TUBE_LEFT_DOWN,
2538     EL_TUBE_RIGHT_UP,
2539     EL_TUBE_RIGHT_DOWN,
2540
2541     -1
2542   };
2543
2544   static int ep_walkable_under[] =
2545   {
2546     -1
2547   };
2548
2549   static int ep_passable_over[] =
2550   {
2551     EL_EM_GATE_1,
2552     EL_EM_GATE_2,
2553     EL_EM_GATE_3,
2554     EL_EM_GATE_4,
2555     EL_EM_GATE_1_GRAY,
2556     EL_EM_GATE_2_GRAY,
2557     EL_EM_GATE_3_GRAY,
2558     EL_EM_GATE_4_GRAY,
2559     EL_EM_GATE_1_GRAY_ACTIVE,
2560     EL_EM_GATE_2_GRAY_ACTIVE,
2561     EL_EM_GATE_3_GRAY_ACTIVE,
2562     EL_EM_GATE_4_GRAY_ACTIVE,
2563     EL_EMC_GATE_5,
2564     EL_EMC_GATE_6,
2565     EL_EMC_GATE_7,
2566     EL_EMC_GATE_8,
2567     EL_EMC_GATE_5_GRAY,
2568     EL_EMC_GATE_6_GRAY,
2569     EL_EMC_GATE_7_GRAY,
2570     EL_EMC_GATE_8_GRAY,
2571     EL_EMC_GATE_5_GRAY_ACTIVE,
2572     EL_EMC_GATE_6_GRAY_ACTIVE,
2573     EL_EMC_GATE_7_GRAY_ACTIVE,
2574     EL_EMC_GATE_8_GRAY_ACTIVE,
2575     EL_SWITCHGATE_OPEN,
2576     EL_TIMEGATE_OPEN,
2577
2578     -1
2579   };
2580
2581   static int ep_passable_inside[] =
2582   {
2583     EL_SP_PORT_LEFT,
2584     EL_SP_PORT_RIGHT,
2585     EL_SP_PORT_UP,
2586     EL_SP_PORT_DOWN,
2587     EL_SP_PORT_HORIZONTAL,
2588     EL_SP_PORT_VERTICAL,
2589     EL_SP_PORT_ANY,
2590     EL_SP_GRAVITY_PORT_LEFT,
2591     EL_SP_GRAVITY_PORT_RIGHT,
2592     EL_SP_GRAVITY_PORT_UP,
2593     EL_SP_GRAVITY_PORT_DOWN,
2594     EL_SP_GRAVITY_ON_PORT_LEFT,
2595     EL_SP_GRAVITY_ON_PORT_RIGHT,
2596     EL_SP_GRAVITY_ON_PORT_UP,
2597     EL_SP_GRAVITY_ON_PORT_DOWN,
2598     EL_SP_GRAVITY_OFF_PORT_LEFT,
2599     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2600     EL_SP_GRAVITY_OFF_PORT_UP,
2601     EL_SP_GRAVITY_OFF_PORT_DOWN,
2602
2603     -1
2604   };
2605
2606   static int ep_passable_under[] =
2607   {
2608     -1
2609   };
2610
2611   static int ep_droppable[] =
2612   {
2613     -1
2614   };
2615
2616   static int ep_explodes_1x1_old[] =
2617   {
2618     -1
2619   };
2620
2621   static int ep_pushable[] =
2622   {
2623     EL_ROCK,
2624     EL_BOMB,
2625     EL_DX_SUPABOMB,
2626     EL_NUT,
2627     EL_TIME_ORB_EMPTY,
2628     EL_SP_ZONK,
2629     EL_SP_DISK_ORANGE,
2630     EL_SPRING,
2631     EL_BD_ROCK,
2632     EL_SOKOBAN_OBJECT,
2633     EL_SOKOBAN_FIELD_FULL,
2634     EL_SATELLITE,
2635     EL_SP_DISK_YELLOW,
2636     EL_BALLOON,
2637     EL_EMC_ANDROID,
2638
2639     -1
2640   };
2641
2642   static int ep_explodes_cross_old[] =
2643   {
2644     -1
2645   };
2646
2647   static int ep_protected[] =
2648   {
2649     /* same elements as in 'ep_walkable_inside' */
2650     EL_TUBE_ANY,
2651     EL_TUBE_VERTICAL,
2652     EL_TUBE_HORIZONTAL,
2653     EL_TUBE_VERTICAL_LEFT,
2654     EL_TUBE_VERTICAL_RIGHT,
2655     EL_TUBE_HORIZONTAL_UP,
2656     EL_TUBE_HORIZONTAL_DOWN,
2657     EL_TUBE_LEFT_UP,
2658     EL_TUBE_LEFT_DOWN,
2659     EL_TUBE_RIGHT_UP,
2660     EL_TUBE_RIGHT_DOWN,
2661
2662     /* same elements as in 'ep_passable_over' */
2663     EL_EM_GATE_1,
2664     EL_EM_GATE_2,
2665     EL_EM_GATE_3,
2666     EL_EM_GATE_4,
2667     EL_EM_GATE_1_GRAY,
2668     EL_EM_GATE_2_GRAY,
2669     EL_EM_GATE_3_GRAY,
2670     EL_EM_GATE_4_GRAY,
2671     EL_EM_GATE_1_GRAY_ACTIVE,
2672     EL_EM_GATE_2_GRAY_ACTIVE,
2673     EL_EM_GATE_3_GRAY_ACTIVE,
2674     EL_EM_GATE_4_GRAY_ACTIVE,
2675     EL_EMC_GATE_5,
2676     EL_EMC_GATE_6,
2677     EL_EMC_GATE_7,
2678     EL_EMC_GATE_8,
2679     EL_EMC_GATE_5_GRAY,
2680     EL_EMC_GATE_6_GRAY,
2681     EL_EMC_GATE_7_GRAY,
2682     EL_EMC_GATE_8_GRAY,
2683     EL_EMC_GATE_5_GRAY_ACTIVE,
2684     EL_EMC_GATE_6_GRAY_ACTIVE,
2685     EL_EMC_GATE_7_GRAY_ACTIVE,
2686     EL_EMC_GATE_8_GRAY_ACTIVE,
2687     EL_SWITCHGATE_OPEN,
2688     EL_TIMEGATE_OPEN,
2689
2690     /* same elements as in 'ep_passable_inside' */
2691     EL_SP_PORT_LEFT,
2692     EL_SP_PORT_RIGHT,
2693     EL_SP_PORT_UP,
2694     EL_SP_PORT_DOWN,
2695     EL_SP_PORT_HORIZONTAL,
2696     EL_SP_PORT_VERTICAL,
2697     EL_SP_PORT_ANY,
2698     EL_SP_GRAVITY_PORT_LEFT,
2699     EL_SP_GRAVITY_PORT_RIGHT,
2700     EL_SP_GRAVITY_PORT_UP,
2701     EL_SP_GRAVITY_PORT_DOWN,
2702     EL_SP_GRAVITY_ON_PORT_LEFT,
2703     EL_SP_GRAVITY_ON_PORT_RIGHT,
2704     EL_SP_GRAVITY_ON_PORT_UP,
2705     EL_SP_GRAVITY_ON_PORT_DOWN,
2706     EL_SP_GRAVITY_OFF_PORT_LEFT,
2707     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2708     EL_SP_GRAVITY_OFF_PORT_UP,
2709     EL_SP_GRAVITY_OFF_PORT_DOWN,
2710
2711     -1
2712   };
2713
2714   static int ep_throwable[] =
2715   {
2716     -1
2717   };
2718
2719   static int ep_can_explode[] =
2720   {
2721     /* same elements as in 'ep_explodes_impact' */
2722     EL_BOMB,
2723     EL_SP_DISK_ORANGE,
2724     EL_DX_SUPABOMB,
2725
2726     /* same elements as in 'ep_explodes_smashed' */
2727     EL_SATELLITE,
2728     EL_PIG,
2729     EL_DRAGON,
2730     EL_MOLE,
2731
2732     /* elements that can explode by explosion or by dragonfire */
2733     EL_DYNAMITE,
2734     EL_DYNAMITE_ACTIVE,
2735     EL_EM_DYNAMITE,
2736     EL_EM_DYNAMITE_ACTIVE,
2737     EL_DYNABOMB_PLAYER_1_ACTIVE,
2738     EL_DYNABOMB_PLAYER_2_ACTIVE,
2739     EL_DYNABOMB_PLAYER_3_ACTIVE,
2740     EL_DYNABOMB_PLAYER_4_ACTIVE,
2741     EL_DYNABOMB_INCREASE_NUMBER,
2742     EL_DYNABOMB_INCREASE_SIZE,
2743     EL_DYNABOMB_INCREASE_POWER,
2744     EL_SP_DISK_RED_ACTIVE,
2745     EL_BUG,
2746     EL_PENGUIN,
2747     EL_SP_DISK_RED,
2748     EL_SP_DISK_YELLOW,
2749     EL_SP_SNIKSNAK,
2750     EL_SP_ELECTRON,
2751
2752     /* elements that can explode only by explosion */
2753     EL_BLACK_ORB,
2754
2755     -1
2756   };
2757
2758   static int ep_gravity_reachable[] =
2759   {
2760     EL_SAND,
2761     EL_SP_BASE,
2762     EL_TRAP,
2763     EL_INVISIBLE_SAND,
2764     EL_INVISIBLE_SAND_ACTIVE,
2765     EL_SP_PORT_LEFT,
2766     EL_SP_PORT_RIGHT,
2767     EL_SP_PORT_UP,
2768     EL_SP_PORT_DOWN,
2769     EL_SP_PORT_HORIZONTAL,
2770     EL_SP_PORT_VERTICAL,
2771     EL_SP_PORT_ANY,
2772     EL_SP_GRAVITY_PORT_LEFT,
2773     EL_SP_GRAVITY_PORT_RIGHT,
2774     EL_SP_GRAVITY_PORT_UP,
2775     EL_SP_GRAVITY_PORT_DOWN,
2776     EL_SP_GRAVITY_ON_PORT_LEFT,
2777     EL_SP_GRAVITY_ON_PORT_RIGHT,
2778     EL_SP_GRAVITY_ON_PORT_UP,
2779     EL_SP_GRAVITY_ON_PORT_DOWN,
2780     EL_SP_GRAVITY_OFF_PORT_LEFT,
2781     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2782     EL_SP_GRAVITY_OFF_PORT_UP,
2783     EL_SP_GRAVITY_OFF_PORT_DOWN,
2784     EL_EMC_GRASS,
2785
2786     -1
2787   };
2788
2789   static int ep_player[] =
2790   {
2791     EL_PLAYER_1,
2792     EL_PLAYER_2,
2793     EL_PLAYER_3,
2794     EL_PLAYER_4,
2795     EL_SP_MURPHY,
2796     EL_SOKOBAN_FIELD_PLAYER,
2797     EL_TRIGGER_PLAYER,
2798
2799     -1
2800   };
2801
2802   static int ep_can_pass_magic_wall[] =
2803   {
2804     EL_ROCK,
2805     EL_BD_ROCK,
2806     EL_EMERALD,
2807     EL_BD_DIAMOND,
2808     EL_EMERALD_YELLOW,
2809     EL_EMERALD_RED,
2810     EL_EMERALD_PURPLE,
2811     EL_DIAMOND,
2812
2813     -1
2814   };
2815
2816   static int ep_switchable[] =
2817   {
2818     EL_ROBOT_WHEEL,
2819     EL_SP_TERMINAL,
2820     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2821     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2822     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2823     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2824     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2825     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2826     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2827     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2828     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2829     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2830     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2831     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2832     EL_SWITCHGATE_SWITCH_UP,
2833     EL_SWITCHGATE_SWITCH_DOWN,
2834     EL_LIGHT_SWITCH,
2835     EL_LIGHT_SWITCH_ACTIVE,
2836     EL_TIMEGATE_SWITCH,
2837     EL_BALLOON_SWITCH_LEFT,
2838     EL_BALLOON_SWITCH_RIGHT,
2839     EL_BALLOON_SWITCH_UP,
2840     EL_BALLOON_SWITCH_DOWN,
2841     EL_BALLOON_SWITCH_ANY,
2842     EL_BALLOON_SWITCH_NONE,
2843     EL_LAMP,
2844     EL_TIME_ORB_FULL,
2845     EL_EMC_MAGIC_BALL_SWITCH,
2846     EL_EMC_MAGIC_BALL_SWITCH_ACTIVE,
2847
2848     -1
2849   };
2850
2851   static int ep_bd_element[] =
2852   {
2853     EL_EMPTY,
2854     EL_SAND,
2855     EL_WALL_SLIPPERY,
2856     EL_BD_WALL,
2857     EL_ROCK,
2858     EL_BD_ROCK,
2859     EL_BD_DIAMOND,
2860     EL_BD_MAGIC_WALL,
2861     EL_EXIT_CLOSED,
2862     EL_EXIT_OPEN,
2863     EL_STEELWALL,
2864     EL_PLAYER_1,
2865     EL_PLAYER_2,
2866     EL_PLAYER_3,
2867     EL_PLAYER_4,
2868     EL_BD_FIREFLY,
2869     EL_BD_FIREFLY_1,
2870     EL_BD_FIREFLY_2,
2871     EL_BD_FIREFLY_3,
2872     EL_BD_FIREFLY_4,
2873     EL_BD_BUTTERFLY,
2874     EL_BD_BUTTERFLY_1,
2875     EL_BD_BUTTERFLY_2,
2876     EL_BD_BUTTERFLY_3,
2877     EL_BD_BUTTERFLY_4,
2878     EL_BD_AMOEBA,
2879     EL_CHAR_QUESTION,
2880     EL_UNKNOWN,
2881
2882     -1
2883   };
2884
2885   static int ep_sp_element[] =
2886   {
2887     /* should always be valid */
2888     EL_EMPTY,
2889
2890     /* standard classic Supaplex elements */
2891     EL_SP_EMPTY,
2892     EL_SP_ZONK,
2893     EL_SP_BASE,
2894     EL_SP_MURPHY,
2895     EL_SP_INFOTRON,
2896     EL_SP_CHIP_SINGLE,
2897     EL_SP_HARDWARE_GRAY,
2898     EL_SP_EXIT_CLOSED,
2899     EL_SP_EXIT_OPEN,
2900     EL_SP_DISK_ORANGE,
2901     EL_SP_PORT_RIGHT,
2902     EL_SP_PORT_DOWN,
2903     EL_SP_PORT_LEFT,
2904     EL_SP_PORT_UP,
2905     EL_SP_GRAVITY_PORT_RIGHT,
2906     EL_SP_GRAVITY_PORT_DOWN,
2907     EL_SP_GRAVITY_PORT_LEFT,
2908     EL_SP_GRAVITY_PORT_UP,
2909     EL_SP_SNIKSNAK,
2910     EL_SP_DISK_YELLOW,
2911     EL_SP_TERMINAL,
2912     EL_SP_DISK_RED,
2913     EL_SP_PORT_VERTICAL,
2914     EL_SP_PORT_HORIZONTAL,
2915     EL_SP_PORT_ANY,
2916     EL_SP_ELECTRON,
2917     EL_SP_BUGGY_BASE,
2918     EL_SP_CHIP_LEFT,
2919     EL_SP_CHIP_RIGHT,
2920     EL_SP_HARDWARE_BASE_1,
2921     EL_SP_HARDWARE_GREEN,
2922     EL_SP_HARDWARE_BLUE,
2923     EL_SP_HARDWARE_RED,
2924     EL_SP_HARDWARE_YELLOW,
2925     EL_SP_HARDWARE_BASE_2,
2926     EL_SP_HARDWARE_BASE_3,
2927     EL_SP_HARDWARE_BASE_4,
2928     EL_SP_HARDWARE_BASE_5,
2929     EL_SP_HARDWARE_BASE_6,
2930     EL_SP_CHIP_TOP,
2931     EL_SP_CHIP_BOTTOM,
2932
2933     /* additional elements that appeared in newer Supaplex levels */
2934     EL_INVISIBLE_WALL,
2935
2936     /* additional gravity port elements (not switching, but setting gravity) */
2937     EL_SP_GRAVITY_ON_PORT_LEFT,
2938     EL_SP_GRAVITY_ON_PORT_RIGHT,
2939     EL_SP_GRAVITY_ON_PORT_UP,
2940     EL_SP_GRAVITY_ON_PORT_DOWN,
2941     EL_SP_GRAVITY_OFF_PORT_LEFT,
2942     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2943     EL_SP_GRAVITY_OFF_PORT_UP,
2944     EL_SP_GRAVITY_OFF_PORT_DOWN,
2945
2946     /* more than one Murphy in a level results in an inactive clone */
2947     EL_SP_MURPHY_CLONE,
2948
2949     /* runtime Supaplex elements */
2950     EL_SP_DISK_RED_ACTIVE,
2951     EL_SP_TERMINAL_ACTIVE,
2952     EL_SP_BUGGY_BASE_ACTIVATING,
2953     EL_SP_BUGGY_BASE_ACTIVE,
2954     EL_SP_EXIT_OPENING,
2955     EL_SP_EXIT_CLOSING,
2956
2957     -1
2958   };
2959
2960   static int ep_sb_element[] =
2961   {
2962     EL_EMPTY,
2963     EL_STEELWALL,
2964     EL_SOKOBAN_OBJECT,
2965     EL_SOKOBAN_FIELD_EMPTY,
2966     EL_SOKOBAN_FIELD_FULL,
2967     EL_SOKOBAN_FIELD_PLAYER,
2968     EL_PLAYER_1,
2969     EL_PLAYER_2,
2970     EL_PLAYER_3,
2971     EL_PLAYER_4,
2972     EL_INVISIBLE_STEELWALL,
2973
2974     -1
2975   };
2976
2977   static int ep_gem[] =
2978   {
2979     EL_BD_DIAMOND,
2980     EL_EMERALD,
2981     EL_EMERALD_YELLOW,
2982     EL_EMERALD_RED,
2983     EL_EMERALD_PURPLE,
2984     EL_DIAMOND,
2985
2986     -1
2987   };
2988
2989   static int ep_food_dark_yamyam[] =
2990   {
2991     EL_SAND,
2992     EL_BUG,
2993     EL_SPACESHIP,
2994     EL_BD_BUTTERFLY,
2995     EL_BD_FIREFLY,
2996     EL_YAMYAM,
2997     EL_ROBOT,
2998     EL_PACMAN,
2999     EL_AMOEBA_DROP,
3000     EL_AMOEBA_DEAD,
3001     EL_AMOEBA_WET,
3002     EL_AMOEBA_DRY,
3003     EL_AMOEBA_FULL,
3004     EL_BD_AMOEBA,
3005     EL_EMERALD,
3006     EL_BD_DIAMOND,
3007     EL_EMERALD_YELLOW,
3008     EL_EMERALD_RED,
3009     EL_EMERALD_PURPLE,
3010     EL_DIAMOND,
3011     EL_PEARL,
3012     EL_CRYSTAL,
3013
3014     -1
3015   };
3016
3017   static int ep_food_penguin[] =
3018   {
3019     EL_EMERALD,
3020     EL_BD_DIAMOND,
3021     EL_EMERALD_YELLOW,
3022     EL_EMERALD_RED,
3023     EL_EMERALD_PURPLE,
3024     EL_DIAMOND,
3025     EL_PEARL,
3026     EL_CRYSTAL,
3027
3028     -1
3029   };
3030
3031   static int ep_food_pig[] =
3032   {
3033     EL_EMERALD,
3034     EL_BD_DIAMOND,
3035     EL_EMERALD_YELLOW,
3036     EL_EMERALD_RED,
3037     EL_EMERALD_PURPLE,
3038     EL_DIAMOND,
3039
3040     -1
3041   };
3042
3043   static int ep_historic_wall[] =
3044   {
3045     EL_STEELWALL,
3046     EL_GATE_1,
3047     EL_GATE_2,
3048     EL_GATE_3,
3049     EL_GATE_4,
3050     EL_GATE_1_GRAY,
3051     EL_GATE_2_GRAY,
3052     EL_GATE_3_GRAY,
3053     EL_GATE_4_GRAY,
3054     EL_GATE_1_GRAY_ACTIVE,
3055     EL_GATE_2_GRAY_ACTIVE,
3056     EL_GATE_3_GRAY_ACTIVE,
3057     EL_GATE_4_GRAY_ACTIVE,
3058     EL_EM_GATE_1,
3059     EL_EM_GATE_2,
3060     EL_EM_GATE_3,
3061     EL_EM_GATE_4,
3062     EL_EM_GATE_1_GRAY,
3063     EL_EM_GATE_2_GRAY,
3064     EL_EM_GATE_3_GRAY,
3065     EL_EM_GATE_4_GRAY,
3066     EL_EM_GATE_1_GRAY_ACTIVE,
3067     EL_EM_GATE_2_GRAY_ACTIVE,
3068     EL_EM_GATE_3_GRAY_ACTIVE,
3069     EL_EM_GATE_4_GRAY_ACTIVE,
3070     EL_EXIT_CLOSED,
3071     EL_EXIT_OPENING,
3072     EL_EXIT_OPEN,
3073     EL_WALL,
3074     EL_WALL_SLIPPERY,
3075     EL_EXPANDABLE_WALL,
3076     EL_EXPANDABLE_WALL_HORIZONTAL,
3077     EL_EXPANDABLE_WALL_VERTICAL,
3078     EL_EXPANDABLE_WALL_ANY,
3079     EL_EXPANDABLE_WALL_GROWING,
3080     EL_BD_EXPANDABLE_WALL,
3081     EL_BD_WALL,
3082     EL_SP_CHIP_SINGLE,
3083     EL_SP_CHIP_LEFT,
3084     EL_SP_CHIP_RIGHT,
3085     EL_SP_CHIP_TOP,
3086     EL_SP_CHIP_BOTTOM,
3087     EL_SP_HARDWARE_GRAY,
3088     EL_SP_HARDWARE_GREEN,
3089     EL_SP_HARDWARE_BLUE,
3090     EL_SP_HARDWARE_RED,
3091     EL_SP_HARDWARE_YELLOW,
3092     EL_SP_HARDWARE_BASE_1,
3093     EL_SP_HARDWARE_BASE_2,
3094     EL_SP_HARDWARE_BASE_3,
3095     EL_SP_HARDWARE_BASE_4,
3096     EL_SP_HARDWARE_BASE_5,
3097     EL_SP_HARDWARE_BASE_6,
3098     EL_SP_TERMINAL,
3099     EL_SP_TERMINAL_ACTIVE,
3100     EL_SP_EXIT_CLOSED,
3101     EL_SP_EXIT_OPEN,
3102     EL_INVISIBLE_STEELWALL,
3103     EL_INVISIBLE_STEELWALL_ACTIVE,
3104     EL_INVISIBLE_WALL,
3105     EL_INVISIBLE_WALL_ACTIVE,
3106     EL_STEELWALL_SLIPPERY,
3107     EL_EMC_STEELWALL_1,
3108     EL_EMC_STEELWALL_2,
3109     EL_EMC_STEELWALL_3,
3110     EL_EMC_STEELWALL_4,
3111     EL_EMC_WALL_1,
3112     EL_EMC_WALL_2,
3113     EL_EMC_WALL_3,
3114     EL_EMC_WALL_4,
3115     EL_EMC_WALL_5,
3116     EL_EMC_WALL_6,
3117     EL_EMC_WALL_7,
3118     EL_EMC_WALL_8,
3119
3120     -1
3121   };
3122
3123   static int ep_historic_solid[] =
3124   {
3125     EL_WALL,
3126     EL_EXPANDABLE_WALL,
3127     EL_EXPANDABLE_WALL_HORIZONTAL,
3128     EL_EXPANDABLE_WALL_VERTICAL,
3129     EL_EXPANDABLE_WALL_ANY,
3130     EL_BD_EXPANDABLE_WALL,
3131     EL_BD_WALL,
3132     EL_WALL_SLIPPERY,
3133     EL_EXIT_CLOSED,
3134     EL_EXIT_OPENING,
3135     EL_EXIT_OPEN,
3136     EL_AMOEBA_DEAD,
3137     EL_AMOEBA_WET,
3138     EL_AMOEBA_DRY,
3139     EL_AMOEBA_FULL,
3140     EL_BD_AMOEBA,
3141     EL_QUICKSAND_EMPTY,
3142     EL_QUICKSAND_FULL,
3143     EL_QUICKSAND_FILLING,
3144     EL_QUICKSAND_EMPTYING,
3145     EL_MAGIC_WALL,
3146     EL_MAGIC_WALL_ACTIVE,
3147     EL_MAGIC_WALL_EMPTYING,
3148     EL_MAGIC_WALL_FILLING,
3149     EL_MAGIC_WALL_FULL,
3150     EL_MAGIC_WALL_DEAD,
3151     EL_BD_MAGIC_WALL,
3152     EL_BD_MAGIC_WALL_ACTIVE,
3153     EL_BD_MAGIC_WALL_EMPTYING,
3154     EL_BD_MAGIC_WALL_FULL,
3155     EL_BD_MAGIC_WALL_FILLING,
3156     EL_BD_MAGIC_WALL_DEAD,
3157     EL_GAME_OF_LIFE,
3158     EL_BIOMAZE,
3159     EL_SP_CHIP_SINGLE,
3160     EL_SP_CHIP_LEFT,
3161     EL_SP_CHIP_RIGHT,
3162     EL_SP_CHIP_TOP,
3163     EL_SP_CHIP_BOTTOM,
3164     EL_SP_TERMINAL,
3165     EL_SP_TERMINAL_ACTIVE,
3166     EL_SP_EXIT_CLOSED,
3167     EL_SP_EXIT_OPEN,
3168     EL_INVISIBLE_WALL,
3169     EL_INVISIBLE_WALL_ACTIVE,
3170     EL_SWITCHGATE_SWITCH_UP,
3171     EL_SWITCHGATE_SWITCH_DOWN,
3172     EL_TIMEGATE_SWITCH,
3173     EL_TIMEGATE_SWITCH_ACTIVE,
3174     EL_EMC_WALL_1,
3175     EL_EMC_WALL_2,
3176     EL_EMC_WALL_3,
3177     EL_EMC_WALL_4,
3178     EL_EMC_WALL_5,
3179     EL_EMC_WALL_6,
3180     EL_EMC_WALL_7,
3181     EL_EMC_WALL_8,
3182     EL_WALL_PEARL,
3183     EL_WALL_CRYSTAL,
3184
3185     /* the following elements are a direct copy of "indestructible" elements,
3186        except "EL_ACID", which is "indestructible", but not "solid"! */
3187 #if 0
3188     EL_ACID,
3189 #endif
3190     EL_STEELWALL,
3191     EL_ACID_POOL_TOPLEFT,
3192     EL_ACID_POOL_TOPRIGHT,
3193     EL_ACID_POOL_BOTTOMLEFT,
3194     EL_ACID_POOL_BOTTOM,
3195     EL_ACID_POOL_BOTTOMRIGHT,
3196     EL_SP_HARDWARE_GRAY,
3197     EL_SP_HARDWARE_GREEN,
3198     EL_SP_HARDWARE_BLUE,
3199     EL_SP_HARDWARE_RED,
3200     EL_SP_HARDWARE_YELLOW,
3201     EL_SP_HARDWARE_BASE_1,
3202     EL_SP_HARDWARE_BASE_2,
3203     EL_SP_HARDWARE_BASE_3,
3204     EL_SP_HARDWARE_BASE_4,
3205     EL_SP_HARDWARE_BASE_5,
3206     EL_SP_HARDWARE_BASE_6,
3207     EL_INVISIBLE_STEELWALL,
3208     EL_INVISIBLE_STEELWALL_ACTIVE,
3209     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3210     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3211     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3212     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3213     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3214     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3215     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3216     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3217     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3218     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3219     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3220     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3221     EL_LIGHT_SWITCH,
3222     EL_LIGHT_SWITCH_ACTIVE,
3223     EL_SIGN_EXCLAMATION,
3224     EL_SIGN_RADIOACTIVITY,
3225     EL_SIGN_STOP,
3226     EL_SIGN_WHEELCHAIR,
3227     EL_SIGN_PARKING,
3228     EL_SIGN_NO_ENTRY,
3229     EL_SIGN_UNUSED_1,
3230     EL_SIGN_GIVE_WAY,
3231     EL_SIGN_ENTRY_FORBIDDEN,
3232     EL_SIGN_EMERGENCY_EXIT,
3233     EL_SIGN_YIN_YANG,
3234     EL_SIGN_UNUSED_2,
3235     EL_SIGN_SPERMS,
3236     EL_SIGN_BULLET,
3237     EL_SIGN_HEART,
3238     EL_SIGN_CROSS,
3239     EL_SIGN_FRANKIE,
3240     EL_STEEL_EXIT_CLOSED,
3241     EL_STEEL_EXIT_OPEN,
3242     EL_DC_STEELWALL_1_LEFT,
3243     EL_DC_STEELWALL_1_RIGHT,
3244     EL_DC_STEELWALL_1_TOP,
3245     EL_DC_STEELWALL_1_BOTTOM,
3246     EL_DC_STEELWALL_1_HORIZONTAL,
3247     EL_DC_STEELWALL_1_VERTICAL,
3248     EL_DC_STEELWALL_1_TOPLEFT,
3249     EL_DC_STEELWALL_1_TOPRIGHT,
3250     EL_DC_STEELWALL_1_BOTTOMLEFT,
3251     EL_DC_STEELWALL_1_BOTTOMRIGHT,
3252     EL_DC_STEELWALL_1_TOPLEFT_2,
3253     EL_DC_STEELWALL_1_TOPRIGHT_2,
3254     EL_DC_STEELWALL_1_BOTTOMLEFT_2,
3255     EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
3256     EL_DC_STEELWALL_2_LEFT,
3257     EL_DC_STEELWALL_2_RIGHT,
3258     EL_DC_STEELWALL_2_TOP,
3259     EL_DC_STEELWALL_2_BOTTOM,
3260     EL_DC_STEELWALL_2_HORIZONTAL,
3261     EL_DC_STEELWALL_2_VERTICAL,
3262     EL_DC_STEELWALL_2_MIDDLE,
3263     EL_DC_STEELWALL_2_SINGLE,
3264     EL_STEELWALL_SLIPPERY,
3265     EL_EMC_STEELWALL_1,
3266     EL_EMC_STEELWALL_2,
3267     EL_EMC_STEELWALL_3,
3268     EL_EMC_STEELWALL_4,
3269     EL_CRYSTAL,
3270     EL_GATE_1,
3271     EL_GATE_2,
3272     EL_GATE_3,
3273     EL_GATE_4,
3274     EL_GATE_1_GRAY,
3275     EL_GATE_2_GRAY,
3276     EL_GATE_3_GRAY,
3277     EL_GATE_4_GRAY,
3278     EL_GATE_1_GRAY_ACTIVE,
3279     EL_GATE_2_GRAY_ACTIVE,
3280     EL_GATE_3_GRAY_ACTIVE,
3281     EL_GATE_4_GRAY_ACTIVE,
3282     EL_EM_GATE_1,
3283     EL_EM_GATE_2,
3284     EL_EM_GATE_3,
3285     EL_EM_GATE_4,
3286     EL_EM_GATE_1_GRAY,
3287     EL_EM_GATE_2_GRAY,
3288     EL_EM_GATE_3_GRAY,
3289     EL_EM_GATE_4_GRAY,
3290     EL_EM_GATE_1_GRAY_ACTIVE,
3291     EL_EM_GATE_2_GRAY_ACTIVE,
3292     EL_EM_GATE_3_GRAY_ACTIVE,
3293     EL_EM_GATE_4_GRAY_ACTIVE,
3294     EL_SWITCHGATE_OPEN,
3295     EL_SWITCHGATE_OPENING,
3296     EL_SWITCHGATE_CLOSED,
3297     EL_SWITCHGATE_CLOSING,
3298     EL_TIMEGATE_OPEN,
3299     EL_TIMEGATE_OPENING,
3300     EL_TIMEGATE_CLOSED,
3301     EL_TIMEGATE_CLOSING,
3302     EL_TUBE_ANY,
3303     EL_TUBE_VERTICAL,
3304     EL_TUBE_HORIZONTAL,
3305     EL_TUBE_VERTICAL_LEFT,
3306     EL_TUBE_VERTICAL_RIGHT,
3307     EL_TUBE_HORIZONTAL_UP,
3308     EL_TUBE_HORIZONTAL_DOWN,
3309     EL_TUBE_LEFT_UP,
3310     EL_TUBE_LEFT_DOWN,
3311     EL_TUBE_RIGHT_UP,
3312     EL_TUBE_RIGHT_DOWN,
3313
3314     -1
3315   };
3316
3317   static int ep_classic_enemy[] =
3318   {
3319     EL_BUG,
3320     EL_SPACESHIP,
3321     EL_BD_BUTTERFLY,
3322     EL_BD_FIREFLY,
3323
3324     EL_YAMYAM,
3325     EL_DARK_YAMYAM,
3326     EL_ROBOT,
3327     EL_PACMAN,
3328     EL_SP_SNIKSNAK,
3329     EL_SP_ELECTRON,
3330
3331     -1
3332   };
3333
3334   static int ep_belt[] =
3335   {
3336     EL_CONVEYOR_BELT_1_LEFT,
3337     EL_CONVEYOR_BELT_1_MIDDLE,
3338     EL_CONVEYOR_BELT_1_RIGHT,
3339     EL_CONVEYOR_BELT_2_LEFT,
3340     EL_CONVEYOR_BELT_2_MIDDLE,
3341     EL_CONVEYOR_BELT_2_RIGHT,
3342     EL_CONVEYOR_BELT_3_LEFT,
3343     EL_CONVEYOR_BELT_3_MIDDLE,
3344     EL_CONVEYOR_BELT_3_RIGHT,
3345     EL_CONVEYOR_BELT_4_LEFT,
3346     EL_CONVEYOR_BELT_4_MIDDLE,
3347     EL_CONVEYOR_BELT_4_RIGHT,
3348
3349     -1
3350   };
3351
3352   static int ep_belt_active[] =
3353   {
3354     EL_CONVEYOR_BELT_1_LEFT_ACTIVE,
3355     EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE,
3356     EL_CONVEYOR_BELT_1_RIGHT_ACTIVE,
3357     EL_CONVEYOR_BELT_2_LEFT_ACTIVE,
3358     EL_CONVEYOR_BELT_2_MIDDLE_ACTIVE,
3359     EL_CONVEYOR_BELT_2_RIGHT_ACTIVE,
3360     EL_CONVEYOR_BELT_3_LEFT_ACTIVE,
3361     EL_CONVEYOR_BELT_3_MIDDLE_ACTIVE,
3362     EL_CONVEYOR_BELT_3_RIGHT_ACTIVE,
3363     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
3364     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
3365     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
3366
3367     -1
3368   };
3369
3370   static int ep_belt_switch[] =
3371   {
3372     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3373     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3374     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3375     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3376     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3377     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3378     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3379     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3380     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3381     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3382     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3383     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3384
3385     -1
3386   };
3387
3388   static int ep_tube[] =
3389   {
3390     EL_TUBE_LEFT_UP,
3391     EL_TUBE_LEFT_DOWN,
3392     EL_TUBE_RIGHT_UP,
3393     EL_TUBE_RIGHT_DOWN,
3394     EL_TUBE_HORIZONTAL,
3395     EL_TUBE_HORIZONTAL_UP,
3396     EL_TUBE_HORIZONTAL_DOWN,
3397     EL_TUBE_VERTICAL,
3398     EL_TUBE_VERTICAL_LEFT,
3399     EL_TUBE_VERTICAL_RIGHT,
3400     EL_TUBE_ANY,
3401
3402     -1
3403   };
3404
3405   static int ep_keygate[] =
3406   {
3407     EL_GATE_1,
3408     EL_GATE_2,
3409     EL_GATE_3,
3410     EL_GATE_4,
3411     EL_GATE_1_GRAY,
3412     EL_GATE_2_GRAY,
3413     EL_GATE_3_GRAY,
3414     EL_GATE_4_GRAY,
3415     EL_GATE_1_GRAY_ACTIVE,
3416     EL_GATE_2_GRAY_ACTIVE,
3417     EL_GATE_3_GRAY_ACTIVE,
3418     EL_GATE_4_GRAY_ACTIVE,
3419     EL_EM_GATE_1,
3420     EL_EM_GATE_2,
3421     EL_EM_GATE_3,
3422     EL_EM_GATE_4,
3423     EL_EM_GATE_1_GRAY,
3424     EL_EM_GATE_2_GRAY,
3425     EL_EM_GATE_3_GRAY,
3426     EL_EM_GATE_4_GRAY,
3427     EL_EM_GATE_1_GRAY_ACTIVE,
3428     EL_EM_GATE_2_GRAY_ACTIVE,
3429     EL_EM_GATE_3_GRAY_ACTIVE,
3430     EL_EM_GATE_4_GRAY_ACTIVE,
3431     EL_EMC_GATE_5,
3432     EL_EMC_GATE_6,
3433     EL_EMC_GATE_7,
3434     EL_EMC_GATE_8,
3435     EL_EMC_GATE_5_GRAY,
3436     EL_EMC_GATE_6_GRAY,
3437     EL_EMC_GATE_7_GRAY,
3438     EL_EMC_GATE_8_GRAY,
3439     EL_EMC_GATE_5_GRAY_ACTIVE,
3440     EL_EMC_GATE_6_GRAY_ACTIVE,
3441     EL_EMC_GATE_7_GRAY_ACTIVE,
3442     EL_EMC_GATE_8_GRAY_ACTIVE,
3443
3444     -1
3445   };
3446
3447   static int ep_amoeboid[] =
3448   {
3449     EL_AMOEBA_DEAD,
3450     EL_AMOEBA_WET,
3451     EL_AMOEBA_DRY,
3452     EL_AMOEBA_FULL,
3453     EL_BD_AMOEBA,
3454     EL_EMC_DRIPPER,
3455
3456     -1
3457   };
3458
3459   static int ep_amoebalive[] =
3460   {
3461     EL_AMOEBA_WET,
3462     EL_AMOEBA_DRY,
3463     EL_AMOEBA_FULL,
3464     EL_BD_AMOEBA,
3465     EL_EMC_DRIPPER,
3466
3467     -1
3468   };
3469
3470   static int ep_has_editor_content[] =
3471   {
3472     EL_PLAYER_1,
3473     EL_PLAYER_2,
3474     EL_PLAYER_3,
3475     EL_PLAYER_4,
3476     EL_SP_MURPHY,
3477     EL_YAMYAM,
3478     EL_YAMYAM_LEFT,
3479     EL_YAMYAM_RIGHT,
3480     EL_YAMYAM_UP,
3481     EL_YAMYAM_DOWN,
3482     EL_AMOEBA_WET,
3483     EL_AMOEBA_DRY,
3484     EL_AMOEBA_FULL,
3485     EL_BD_AMOEBA,
3486     EL_EMC_MAGIC_BALL,
3487     EL_EMC_ANDROID,
3488
3489     -1
3490   };
3491
3492   static int ep_can_turn_each_move[] =
3493   {
3494     /* !!! do something with this one !!! */
3495     -1
3496   };
3497
3498   static int ep_can_grow[] =
3499   {
3500     EL_BD_AMOEBA,
3501     EL_AMOEBA_DROP,
3502     EL_AMOEBA_WET,
3503     EL_AMOEBA_DRY,
3504     EL_AMOEBA_FULL,
3505     EL_GAME_OF_LIFE,
3506     EL_BIOMAZE,
3507     EL_EMC_DRIPPER,
3508
3509     -1
3510   };
3511
3512   static int ep_active_bomb[] =
3513   {
3514     EL_DYNAMITE_ACTIVE,
3515     EL_EM_DYNAMITE_ACTIVE,
3516     EL_DYNABOMB_PLAYER_1_ACTIVE,
3517     EL_DYNABOMB_PLAYER_2_ACTIVE,
3518     EL_DYNABOMB_PLAYER_3_ACTIVE,
3519     EL_DYNABOMB_PLAYER_4_ACTIVE,
3520     EL_SP_DISK_RED_ACTIVE,
3521
3522     -1
3523   };
3524
3525   static int ep_inactive[] =
3526   {
3527     EL_EMPTY,
3528     EL_SAND,
3529     EL_WALL,
3530     EL_BD_WALL,
3531     EL_WALL_SLIPPERY,
3532     EL_STEELWALL,
3533     EL_AMOEBA_DEAD,
3534     EL_QUICKSAND_EMPTY,
3535     EL_STONEBLOCK,
3536     EL_ROBOT_WHEEL,
3537     EL_KEY_1,
3538     EL_KEY_2,
3539     EL_KEY_3,
3540     EL_KEY_4,
3541     EL_EM_KEY_1,
3542     EL_EM_KEY_2,
3543     EL_EM_KEY_3,
3544     EL_EM_KEY_4,
3545     EL_EMC_KEY_5,
3546     EL_EMC_KEY_6,
3547     EL_EMC_KEY_7,
3548     EL_EMC_KEY_8,
3549     EL_GATE_1,
3550     EL_GATE_2,
3551     EL_GATE_3,
3552     EL_GATE_4,
3553     EL_GATE_1_GRAY,
3554     EL_GATE_2_GRAY,
3555     EL_GATE_3_GRAY,
3556     EL_GATE_4_GRAY,
3557     EL_GATE_1_GRAY_ACTIVE,
3558     EL_GATE_2_GRAY_ACTIVE,
3559     EL_GATE_3_GRAY_ACTIVE,
3560     EL_GATE_4_GRAY_ACTIVE,
3561     EL_EM_GATE_1,
3562     EL_EM_GATE_2,
3563     EL_EM_GATE_3,
3564     EL_EM_GATE_4,
3565     EL_EM_GATE_1_GRAY,
3566     EL_EM_GATE_2_GRAY,
3567     EL_EM_GATE_3_GRAY,
3568     EL_EM_GATE_4_GRAY,
3569     EL_EM_GATE_1_GRAY_ACTIVE,
3570     EL_EM_GATE_2_GRAY_ACTIVE,
3571     EL_EM_GATE_3_GRAY_ACTIVE,
3572     EL_EM_GATE_4_GRAY_ACTIVE,
3573     EL_EMC_GATE_5,
3574     EL_EMC_GATE_6,
3575     EL_EMC_GATE_7,
3576     EL_EMC_GATE_8,
3577     EL_EMC_GATE_5_GRAY,
3578     EL_EMC_GATE_6_GRAY,
3579     EL_EMC_GATE_7_GRAY,
3580     EL_EMC_GATE_8_GRAY,
3581     EL_EMC_GATE_5_GRAY_ACTIVE,
3582     EL_EMC_GATE_6_GRAY_ACTIVE,
3583     EL_EMC_GATE_7_GRAY_ACTIVE,
3584     EL_EMC_GATE_8_GRAY_ACTIVE,
3585     EL_DYNAMITE,
3586     EL_EM_DYNAMITE,
3587     EL_INVISIBLE_STEELWALL,
3588     EL_INVISIBLE_WALL,
3589     EL_INVISIBLE_SAND,
3590     EL_LAMP,
3591     EL_LAMP_ACTIVE,
3592     EL_WALL_EMERALD,
3593     EL_WALL_DIAMOND,
3594     EL_WALL_BD_DIAMOND,
3595     EL_WALL_EMERALD_YELLOW,
3596     EL_DYNABOMB_INCREASE_NUMBER,
3597     EL_DYNABOMB_INCREASE_SIZE,
3598     EL_DYNABOMB_INCREASE_POWER,
3599 #if 0
3600     EL_SOKOBAN_OBJECT,
3601 #endif
3602     EL_SOKOBAN_FIELD_EMPTY,
3603     EL_SOKOBAN_FIELD_FULL,
3604     EL_WALL_EMERALD_RED,
3605     EL_WALL_EMERALD_PURPLE,
3606     EL_ACID_POOL_TOPLEFT,
3607     EL_ACID_POOL_TOPRIGHT,
3608     EL_ACID_POOL_BOTTOMLEFT,
3609     EL_ACID_POOL_BOTTOM,
3610     EL_ACID_POOL_BOTTOMRIGHT,
3611     EL_MAGIC_WALL,
3612     EL_MAGIC_WALL_DEAD,
3613     EL_BD_MAGIC_WALL,
3614     EL_BD_MAGIC_WALL_DEAD,
3615     EL_AMOEBA_TO_DIAMOND,
3616     EL_BLOCKED,
3617     EL_SP_EMPTY,
3618     EL_SP_BASE,
3619     EL_SP_PORT_RIGHT,
3620     EL_SP_PORT_DOWN,
3621     EL_SP_PORT_LEFT,
3622     EL_SP_PORT_UP,
3623     EL_SP_GRAVITY_PORT_RIGHT,
3624     EL_SP_GRAVITY_PORT_DOWN,
3625     EL_SP_GRAVITY_PORT_LEFT,
3626     EL_SP_GRAVITY_PORT_UP,
3627     EL_SP_PORT_HORIZONTAL,
3628     EL_SP_PORT_VERTICAL,
3629     EL_SP_PORT_ANY,
3630     EL_SP_DISK_RED,
3631 #if 0
3632     EL_SP_DISK_YELLOW,
3633 #endif
3634     EL_SP_CHIP_SINGLE,
3635     EL_SP_CHIP_LEFT,
3636     EL_SP_CHIP_RIGHT,
3637     EL_SP_CHIP_TOP,
3638     EL_SP_CHIP_BOTTOM,
3639     EL_SP_HARDWARE_GRAY,
3640     EL_SP_HARDWARE_GREEN,
3641     EL_SP_HARDWARE_BLUE,
3642     EL_SP_HARDWARE_RED,
3643     EL_SP_HARDWARE_YELLOW,
3644     EL_SP_HARDWARE_BASE_1,
3645     EL_SP_HARDWARE_BASE_2,
3646     EL_SP_HARDWARE_BASE_3,
3647     EL_SP_HARDWARE_BASE_4,
3648     EL_SP_HARDWARE_BASE_5,
3649     EL_SP_HARDWARE_BASE_6,
3650     EL_SP_GRAVITY_ON_PORT_LEFT,
3651     EL_SP_GRAVITY_ON_PORT_RIGHT,
3652     EL_SP_GRAVITY_ON_PORT_UP,
3653     EL_SP_GRAVITY_ON_PORT_DOWN,
3654     EL_SP_GRAVITY_OFF_PORT_LEFT,
3655     EL_SP_GRAVITY_OFF_PORT_RIGHT,
3656     EL_SP_GRAVITY_OFF_PORT_UP,
3657     EL_SP_GRAVITY_OFF_PORT_DOWN,
3658     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3659     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3660     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3661     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3662     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3663     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3664     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3665     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3666     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3667     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3668     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3669     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3670     EL_SIGN_EXCLAMATION,
3671     EL_SIGN_RADIOACTIVITY,
3672     EL_SIGN_STOP,
3673     EL_SIGN_WHEELCHAIR,
3674     EL_SIGN_PARKING,
3675     EL_SIGN_NO_ENTRY,
3676     EL_SIGN_UNUSED_1,
3677     EL_SIGN_GIVE_WAY,
3678     EL_SIGN_ENTRY_FORBIDDEN,
3679     EL_SIGN_EMERGENCY_EXIT,
3680     EL_SIGN_YIN_YANG,
3681     EL_SIGN_UNUSED_2,
3682     EL_SIGN_SPERMS,
3683     EL_SIGN_BULLET,
3684     EL_SIGN_HEART,
3685     EL_SIGN_CROSS,
3686     EL_SIGN_FRANKIE,
3687     EL_DC_STEELWALL_1_LEFT,
3688     EL_DC_STEELWALL_1_RIGHT,
3689     EL_DC_STEELWALL_1_TOP,
3690     EL_DC_STEELWALL_1_BOTTOM,
3691     EL_DC_STEELWALL_1_HORIZONTAL,
3692     EL_DC_STEELWALL_1_VERTICAL,
3693     EL_DC_STEELWALL_1_TOPLEFT,
3694     EL_DC_STEELWALL_1_TOPRIGHT,
3695     EL_DC_STEELWALL_1_BOTTOMLEFT,
3696     EL_DC_STEELWALL_1_BOTTOMRIGHT,
3697     EL_DC_STEELWALL_1_TOPLEFT_2,
3698     EL_DC_STEELWALL_1_TOPRIGHT_2,
3699     EL_DC_STEELWALL_1_BOTTOMLEFT_2,
3700     EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
3701     EL_DC_STEELWALL_2_LEFT,
3702     EL_DC_STEELWALL_2_RIGHT,
3703     EL_DC_STEELWALL_2_TOP,
3704     EL_DC_STEELWALL_2_BOTTOM,
3705     EL_DC_STEELWALL_2_HORIZONTAL,
3706     EL_DC_STEELWALL_2_VERTICAL,
3707     EL_DC_STEELWALL_2_MIDDLE,
3708     EL_DC_STEELWALL_2_SINGLE,
3709     EL_STEELWALL_SLIPPERY,
3710     EL_EMC_STEELWALL_1,
3711     EL_EMC_STEELWALL_2,
3712     EL_EMC_STEELWALL_3,
3713     EL_EMC_STEELWALL_4,
3714     EL_EMC_WALL_SLIPPERY_1,
3715     EL_EMC_WALL_SLIPPERY_2,
3716     EL_EMC_WALL_SLIPPERY_3,
3717     EL_EMC_WALL_SLIPPERY_4,
3718     EL_EMC_WALL_1,
3719     EL_EMC_WALL_2,
3720     EL_EMC_WALL_3,
3721     EL_EMC_WALL_4,
3722     EL_EMC_WALL_5,
3723     EL_EMC_WALL_6,
3724     EL_EMC_WALL_7,
3725     EL_EMC_WALL_8,
3726     EL_EMC_WALL_9,
3727     EL_EMC_WALL_10,
3728     EL_EMC_WALL_11,
3729     EL_EMC_WALL_12,
3730     EL_EMC_WALL_13,
3731     EL_EMC_WALL_14,
3732     EL_EMC_WALL_15,
3733     EL_EMC_WALL_16,
3734
3735     -1
3736   };
3737
3738   static int ep_em_slippery_wall[] =
3739   {
3740     -1
3741   };
3742
3743   static int ep_gfx_crumbled[] =
3744   {
3745     EL_SAND,
3746     EL_LANDMINE,
3747     EL_TRAP,
3748     EL_TRAP_ACTIVE,
3749
3750     -1
3751   };
3752
3753   static int ep_editor_cascade_active[] =
3754   {
3755     EL_INTERNAL_CASCADE_BD_ACTIVE,
3756     EL_INTERNAL_CASCADE_EM_ACTIVE,
3757     EL_INTERNAL_CASCADE_EMC_ACTIVE,
3758     EL_INTERNAL_CASCADE_RND_ACTIVE,
3759     EL_INTERNAL_CASCADE_SB_ACTIVE,
3760     EL_INTERNAL_CASCADE_SP_ACTIVE,
3761     EL_INTERNAL_CASCADE_DC_ACTIVE,
3762     EL_INTERNAL_CASCADE_DX_ACTIVE,
3763     EL_INTERNAL_CASCADE_CHARS_ACTIVE,
3764     EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
3765     EL_INTERNAL_CASCADE_CE_ACTIVE,
3766     EL_INTERNAL_CASCADE_GE_ACTIVE,
3767     EL_INTERNAL_CASCADE_REF_ACTIVE,
3768     EL_INTERNAL_CASCADE_USER_ACTIVE,
3769     EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
3770
3771     -1
3772   };
3773
3774   static int ep_editor_cascade_inactive[] =
3775   {
3776     EL_INTERNAL_CASCADE_BD,
3777     EL_INTERNAL_CASCADE_EM,
3778     EL_INTERNAL_CASCADE_EMC,
3779     EL_INTERNAL_CASCADE_RND,
3780     EL_INTERNAL_CASCADE_SB,
3781     EL_INTERNAL_CASCADE_SP,
3782     EL_INTERNAL_CASCADE_DC,
3783     EL_INTERNAL_CASCADE_DX,
3784     EL_INTERNAL_CASCADE_CHARS,
3785     EL_INTERNAL_CASCADE_STEEL_CHARS,
3786     EL_INTERNAL_CASCADE_CE,
3787     EL_INTERNAL_CASCADE_GE,
3788     EL_INTERNAL_CASCADE_REF,
3789     EL_INTERNAL_CASCADE_USER,
3790     EL_INTERNAL_CASCADE_DYNAMIC,
3791
3792     -1
3793   };
3794
3795   static int ep_obsolete[] =
3796   {
3797     EL_PLAYER_OBSOLETE,
3798     EL_KEY_OBSOLETE,
3799     EL_EM_KEY_1_FILE_OBSOLETE,
3800     EL_EM_KEY_2_FILE_OBSOLETE,
3801     EL_EM_KEY_3_FILE_OBSOLETE,
3802     EL_EM_KEY_4_FILE_OBSOLETE,
3803     EL_ENVELOPE_OBSOLETE,
3804
3805     -1
3806   };
3807
3808   static struct
3809   {
3810     int *elements;
3811     int property;
3812   } element_properties[] =
3813   {
3814     { ep_diggable,                      EP_DIGGABLE                     },
3815     { ep_collectible_only,              EP_COLLECTIBLE_ONLY             },
3816     { ep_dont_run_into,                 EP_DONT_RUN_INTO                },
3817     { ep_dont_collide_with,             EP_DONT_COLLIDE_WITH            },
3818     { ep_dont_touch,                    EP_DONT_TOUCH                   },
3819     { ep_indestructible,                EP_INDESTRUCTIBLE               },
3820     { ep_slippery,                      EP_SLIPPERY                     },
3821     { ep_can_change,                    EP_CAN_CHANGE                   },
3822     { ep_can_move,                      EP_CAN_MOVE                     },
3823     { ep_can_fall,                      EP_CAN_FALL                     },
3824     { ep_can_smash_player,              EP_CAN_SMASH_PLAYER             },
3825     { ep_can_smash_enemies,             EP_CAN_SMASH_ENEMIES            },
3826     { ep_can_smash_everything,          EP_CAN_SMASH_EVERYTHING         },
3827     { ep_explodes_by_fire,              EP_EXPLODES_BY_FIRE             },
3828     { ep_explodes_smashed,              EP_EXPLODES_SMASHED             },
3829     { ep_explodes_impact,               EP_EXPLODES_IMPACT              },
3830     { ep_walkable_over,                 EP_WALKABLE_OVER                },
3831     { ep_walkable_inside,               EP_WALKABLE_INSIDE              },
3832     { ep_walkable_under,                EP_WALKABLE_UNDER               },
3833     { ep_passable_over,                 EP_PASSABLE_OVER                },
3834     { ep_passable_inside,               EP_PASSABLE_INSIDE              },
3835     { ep_passable_under,                EP_PASSABLE_UNDER               },
3836     { ep_droppable,                     EP_DROPPABLE                    },
3837     { ep_explodes_1x1_old,              EP_EXPLODES_1X1_OLD             },
3838     { ep_pushable,                      EP_PUSHABLE                     },
3839     { ep_explodes_cross_old,            EP_EXPLODES_CROSS_OLD           },
3840     { ep_protected,                     EP_PROTECTED                    },
3841     { ep_throwable,                     EP_THROWABLE                    },
3842     { ep_can_explode,                   EP_CAN_EXPLODE                  },
3843     { ep_gravity_reachable,             EP_GRAVITY_REACHABLE            },
3844
3845     { ep_player,                        EP_PLAYER                       },
3846     { ep_can_pass_magic_wall,           EP_CAN_PASS_MAGIC_WALL          },
3847     { ep_switchable,                    EP_SWITCHABLE                   },
3848     { ep_bd_element,                    EP_BD_ELEMENT                   },
3849     { ep_sp_element,                    EP_SP_ELEMENT                   },
3850     { ep_sb_element,                    EP_SB_ELEMENT                   },
3851     { ep_gem,                           EP_GEM                          },
3852     { ep_food_dark_yamyam,              EP_FOOD_DARK_YAMYAM             },
3853     { ep_food_penguin,                  EP_FOOD_PENGUIN                 },
3854     { ep_food_pig,                      EP_FOOD_PIG                     },
3855     { ep_historic_wall,                 EP_HISTORIC_WALL                },
3856     { ep_historic_solid,                EP_HISTORIC_SOLID               },
3857     { ep_classic_enemy,                 EP_CLASSIC_ENEMY                },
3858     { ep_belt,                          EP_BELT                         },
3859     { ep_belt_active,                   EP_BELT_ACTIVE                  },
3860     { ep_belt_switch,                   EP_BELT_SWITCH                  },
3861     { ep_tube,                          EP_TUBE                         },
3862     { ep_keygate,                       EP_KEYGATE                      },
3863     { ep_amoeboid,                      EP_AMOEBOID                     },
3864     { ep_amoebalive,                    EP_AMOEBALIVE                   },
3865     { ep_has_editor_content,            EP_HAS_EDITOR_CONTENT           },
3866     { ep_can_turn_each_move,            EP_CAN_TURN_EACH_MOVE           },
3867     { ep_can_grow,                      EP_CAN_GROW                     },
3868     { ep_active_bomb,                   EP_ACTIVE_BOMB                  },
3869     { ep_inactive,                      EP_INACTIVE                     },
3870
3871     { ep_em_slippery_wall,              EP_EM_SLIPPERY_WALL             },
3872
3873     { ep_gfx_crumbled,                  EP_GFX_CRUMBLED                 },
3874
3875     { ep_editor_cascade_active,         EP_EDITOR_CASCADE_ACTIVE        },
3876     { ep_editor_cascade_inactive,       EP_EDITOR_CASCADE_INACTIVE      },
3877
3878     { ep_obsolete,                      EP_OBSOLETE                     },
3879
3880     { NULL,                             -1                              }
3881   };
3882
3883   int i, j, k;
3884
3885   /* always start with reliable default values (element has no properties) */
3886   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3887     for (j = 0; j < NUM_ELEMENT_PROPERTIES; j++)
3888       SET_PROPERTY(i, j, FALSE);
3889
3890   /* set all base element properties from above array definitions */
3891   for (i = 0; element_properties[i].elements != NULL; i++)
3892     for (j = 0; (element_properties[i].elements)[j] != -1; j++)
3893       SET_PROPERTY((element_properties[i].elements)[j],
3894                    element_properties[i].property, TRUE);
3895
3896   /* copy properties to some elements that are only stored in level file */
3897   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
3898     for (j = 0; copy_properties[j][0] != -1; j++)
3899       if (HAS_PROPERTY(copy_properties[j][0], i))
3900         for (k = 1; k <= 4; k++)
3901           SET_PROPERTY(copy_properties[j][k], i, TRUE);
3902
3903   /* set static element properties that are not listed in array definitions */
3904   for (i = EL_STEEL_CHAR_START; i <= EL_STEEL_CHAR_END; i++)
3905     SET_PROPERTY(i, EP_INDESTRUCTIBLE, TRUE);
3906 }
3907
3908 void InitElementPropertiesEngine(int engine_version)
3909 {
3910   static int no_wall_properties[] =
3911   {
3912     EP_DIGGABLE,
3913     EP_COLLECTIBLE_ONLY,
3914     EP_DONT_RUN_INTO,
3915     EP_DONT_COLLIDE_WITH,
3916     EP_CAN_MOVE,
3917     EP_CAN_FALL,
3918     EP_CAN_SMASH_PLAYER,
3919     EP_CAN_SMASH_ENEMIES,
3920     EP_CAN_SMASH_EVERYTHING,
3921     EP_PUSHABLE,
3922
3923     EP_PLAYER,
3924     EP_GEM,
3925     EP_FOOD_DARK_YAMYAM,
3926     EP_FOOD_PENGUIN,
3927     EP_BELT,
3928     EP_BELT_ACTIVE,
3929     EP_TUBE,
3930     EP_AMOEBOID,
3931     EP_AMOEBALIVE,
3932     EP_ACTIVE_BOMB,
3933
3934     EP_ACCESSIBLE,
3935
3936     -1
3937   };
3938
3939   int i, j;
3940
3941   /* important: after initialization in InitElementPropertiesStatic(), the
3942      elements are not again initialized to a default value; therefore all
3943      changes have to make sure that they leave the element with a defined
3944      property (which means that conditional property changes must be set to
3945      a reliable default value before) */
3946
3947   /* ---------- recursively resolve group elements ------------------------- */
3948
3949   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3950     for (j = 0; j < NUM_GROUP_ELEMENTS; j++)
3951       element_info[i].in_group[j] = FALSE;
3952
3953   for (i = 0; i < NUM_GROUP_ELEMENTS; i++)
3954     resolve_group_element(EL_GROUP_START + i, 0);
3955
3956   /* set all special, combined or engine dependent element properties */
3957   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3958   {
3959     /* ---------- INACTIVE ------------------------------------------------- */
3960     SET_PROPERTY(i, EP_INACTIVE, ((i >= EL_CHAR_START &&
3961                                    i <= EL_CHAR_END) ||
3962                                   (i >= EL_STEEL_CHAR_START &&
3963                                    i <= EL_STEEL_CHAR_END)));
3964
3965     /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
3966     SET_PROPERTY(i, EP_WALKABLE, (IS_WALKABLE_OVER(i) ||
3967                                   IS_WALKABLE_INSIDE(i) ||
3968                                   IS_WALKABLE_UNDER(i)));
3969
3970     SET_PROPERTY(i, EP_PASSABLE, (IS_PASSABLE_OVER(i) ||
3971                                   IS_PASSABLE_INSIDE(i) ||
3972                                   IS_PASSABLE_UNDER(i)));
3973
3974     SET_PROPERTY(i, EP_ACCESSIBLE_OVER, (IS_WALKABLE_OVER(i) ||
3975                                          IS_PASSABLE_OVER(i)));
3976
3977     SET_PROPERTY(i, EP_ACCESSIBLE_INSIDE, (IS_WALKABLE_INSIDE(i) ||
3978                                            IS_PASSABLE_INSIDE(i)));
3979
3980     SET_PROPERTY(i, EP_ACCESSIBLE_UNDER, (IS_WALKABLE_UNDER(i) ||
3981                                           IS_PASSABLE_UNDER(i)));
3982
3983     SET_PROPERTY(i, EP_ACCESSIBLE, (IS_WALKABLE(i) ||
3984                                     IS_PASSABLE(i)));
3985
3986     /* ---------- COLLECTIBLE ---------------------------------------------- */
3987     SET_PROPERTY(i, EP_COLLECTIBLE, (IS_COLLECTIBLE_ONLY(i) ||
3988                                      IS_DROPPABLE(i) ||
3989                                      IS_THROWABLE(i)));
3990
3991     /* ---------- SNAPPABLE ------------------------------------------------ */
3992     SET_PROPERTY(i, EP_SNAPPABLE, (IS_DIGGABLE(i) ||
3993                                    IS_COLLECTIBLE(i) ||
3994                                    IS_SWITCHABLE(i) ||
3995                                    i == EL_BD_ROCK));
3996
3997     /* ---------- WALL ----------------------------------------------------- */
3998     SET_PROPERTY(i, EP_WALL, TRUE);     /* default: element is wall */
3999
4000     for (j = 0; no_wall_properties[j] != -1; j++)
4001       if (HAS_PROPERTY(i, no_wall_properties[j]) ||
4002           i >= EL_FIRST_RUNTIME_UNREAL)
4003         SET_PROPERTY(i, EP_WALL, FALSE);
4004
4005     if (IS_HISTORIC_WALL(i))
4006       SET_PROPERTY(i, EP_WALL, TRUE);
4007
4008     /* ---------- SOLID_FOR_PUSHING ---------------------------------------- */
4009     if (engine_version < VERSION_IDENT(2,2,0,0))
4010       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, IS_HISTORIC_SOLID(i));
4011     else
4012       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, (!IS_WALKABLE(i) &&
4013                                              !IS_DIGGABLE(i) &&
4014                                              !IS_COLLECTIBLE(i)));
4015
4016     /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
4017     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
4018       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
4019     else
4020       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, (IS_CUSTOM_ELEMENT(i) &&
4021                                             IS_INDESTRUCTIBLE(i)));
4022
4023     /* ---------- EXPLOSION_PROOF ------------------------------------------ */
4024     if (i == EL_FLAMES)
4025       SET_PROPERTY(i, EP_EXPLOSION_PROOF, TRUE);
4026     else if (engine_version < VERSION_IDENT(2,2,0,0))
4027       SET_PROPERTY(i, EP_EXPLOSION_PROOF, IS_INDESTRUCTIBLE(i));
4028     else
4029       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
4030                                            (!IS_WALKABLE(i) ||
4031                                             IS_PROTECTED(i))));
4032
4033     if (IS_CUSTOM_ELEMENT(i))
4034     {
4035       /* these are additional properties which are initially false when set */
4036
4037       /* ---------- DONT_COLLIDE_WITH / DONT_RUN_INTO ---------------------- */
4038       if (DONT_TOUCH(i))
4039         SET_PROPERTY(i, EP_DONT_COLLIDE_WITH, TRUE);
4040       if (DONT_COLLIDE_WITH(i))
4041         SET_PROPERTY(i, EP_DONT_RUN_INTO, TRUE);
4042
4043       /* ---------- CAN_SMASH_ENEMIES / CAN_SMASH_PLAYER ------------------- */
4044       if (CAN_SMASH_EVERYTHING(i))
4045         SET_PROPERTY(i, EP_CAN_SMASH_ENEMIES, TRUE);
4046       if (CAN_SMASH_ENEMIES(i))
4047         SET_PROPERTY(i, EP_CAN_SMASH_PLAYER, TRUE);
4048     }
4049
4050     /* ---------- CAN_SMASH ------------------------------------------------ */
4051     SET_PROPERTY(i, EP_CAN_SMASH, (CAN_SMASH_PLAYER(i) ||
4052                                    CAN_SMASH_ENEMIES(i) ||
4053                                    CAN_SMASH_EVERYTHING(i)));
4054
4055     /* ---------- CAN_EXPLODE_BY_FIRE -------------------------------------- */
4056     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_FIRE, (CAN_EXPLODE(i) &&
4057                                              EXPLODES_BY_FIRE(i)));
4058
4059     /* ---------- CAN_EXPLODE_SMASHED -------------------------------------- */
4060     SET_PROPERTY(i, EP_CAN_EXPLODE_SMASHED, (CAN_EXPLODE(i) &&
4061                                              EXPLODES_SMASHED(i)));
4062
4063     /* ---------- CAN_EXPLODE_IMPACT --------------------------------------- */
4064     SET_PROPERTY(i, EP_CAN_EXPLODE_IMPACT, (CAN_EXPLODE(i) &&
4065                                             EXPLODES_IMPACT(i)));
4066
4067     /* ---------- CAN_EXPLODE_BY_DRAGONFIRE -------------------------------- */
4068     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_DRAGONFIRE, CAN_EXPLODE_BY_FIRE(i));
4069
4070     /* ---------- CAN_EXPLODE_BY_EXPLOSION --------------------------------- */
4071     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_EXPLOSION, (CAN_EXPLODE_BY_FIRE(i) ||
4072                                                   i == EL_BLACK_ORB));
4073
4074     /* ---------- COULD_MOVE_INTO_ACID ------------------------------------- */
4075     SET_PROPERTY(i, EP_COULD_MOVE_INTO_ACID, (ELEM_IS_PLAYER(i) ||
4076                                               CAN_MOVE(i) ||
4077                                               IS_CUSTOM_ELEMENT(i)));
4078
4079     /* ---------- MAYBE_DONT_COLLIDE_WITH ---------------------------------- */
4080     SET_PROPERTY(i, EP_MAYBE_DONT_COLLIDE_WITH, (i == EL_SP_SNIKSNAK ||
4081                                                  i == EL_SP_ELECTRON));
4082
4083     /* ---------- CAN_MOVE_INTO_ACID --------------------------------------- */
4084     if (COULD_MOVE_INTO_ACID(i) && !IS_CUSTOM_ELEMENT(i))
4085       SET_PROPERTY(i, EP_CAN_MOVE_INTO_ACID,
4086                    getMoveIntoAcidProperty(&level, i));
4087
4088     /* ---------- DONT_COLLIDE_WITH ---------------------------------------- */
4089     if (MAYBE_DONT_COLLIDE_WITH(i))
4090       SET_PROPERTY(i, EP_DONT_COLLIDE_WITH,
4091                    getDontCollideWithProperty(&level, i));
4092
4093     /* ---------- SP_PORT -------------------------------------------------- */
4094     SET_PROPERTY(i, EP_SP_PORT, (IS_SP_ELEMENT(i) &&
4095                                  IS_PASSABLE_INSIDE(i)));
4096
4097     /* ---------- CAN_BE_CLONED_BY_ANDROID --------------------------------- */
4098     for (j = 0; j < level.num_android_clone_elements; j++)
4099       SET_PROPERTY(i, EP_CAN_BE_CLONED_BY_ANDROID,
4100                    (i != EL_EMPTY &&
4101                     IS_EQUAL_OR_IN_GROUP(i, level.android_clone_element[j])));
4102
4103     /* ---------- CAN_CHANGE ----------------------------------------------- */
4104     SET_PROPERTY(i, EP_CAN_CHANGE, FALSE);      /* default: cannot change */
4105     for (j = 0; j < element_info[i].num_change_pages; j++)
4106       if (element_info[i].change_page[j].can_change)
4107         SET_PROPERTY(i, EP_CAN_CHANGE, TRUE);
4108
4109     /* ---------- HAS_ACTION ----------------------------------------------- */
4110     SET_PROPERTY(i, EP_HAS_ACTION, FALSE);      /* default: has no action */
4111     for (j = 0; j < element_info[i].num_change_pages; j++)
4112       if (element_info[i].change_page[j].has_action)
4113         SET_PROPERTY(i, EP_HAS_ACTION, TRUE);
4114
4115     /* ---------- CAN_CHANGE_OR_HAS_ACTION --------------------------------- */
4116     SET_PROPERTY(i, EP_CAN_CHANGE_OR_HAS_ACTION, (CAN_CHANGE(i) ||
4117                                                   HAS_ACTION(i)));
4118
4119     /* ---------- GFX_CRUMBLED --------------------------------------------- */
4120 #if 1
4121     SET_PROPERTY(i, EP_GFX_CRUMBLED,
4122                  element_info[i].crumbled[ACTION_DEFAULT] !=
4123                  element_info[i].graphic[ACTION_DEFAULT]);
4124 #else
4125     /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
4126     SET_PROPERTY(i, EP_GFX_CRUMBLED,
4127                  element_info[i].crumbled[ACTION_DEFAULT] != IMG_EMPTY);
4128 #endif
4129
4130     /* ---------- EDITOR_CASCADE ------------------------------------------- */
4131     SET_PROPERTY(i, EP_EDITOR_CASCADE, (IS_EDITOR_CASCADE_ACTIVE(i) ||
4132                                         IS_EDITOR_CASCADE_INACTIVE(i)));
4133   }
4134
4135   /* dynamically adjust element properties according to game engine version */
4136   {
4137     static int ep_em_slippery_wall[] =
4138     {
4139       EL_STEELWALL,
4140       EL_WALL,
4141       EL_EXPANDABLE_WALL,
4142       EL_EXPANDABLE_WALL_HORIZONTAL,
4143       EL_EXPANDABLE_WALL_VERTICAL,
4144       EL_EXPANDABLE_WALL_ANY,
4145       -1
4146     };
4147
4148     /* special EM style gems behaviour */
4149     for (i = 0; ep_em_slippery_wall[i] != -1; i++)
4150       SET_PROPERTY(ep_em_slippery_wall[i], EP_EM_SLIPPERY_WALL,
4151                    level.em_slippery_gems);
4152
4153     /* "EL_EXPANDABLE_WALL_GROWING" wasn't slippery for EM gems in 2.0.1 */
4154     SET_PROPERTY(EL_EXPANDABLE_WALL_GROWING, EP_EM_SLIPPERY_WALL,
4155                  (level.em_slippery_gems &&
4156                   engine_version > VERSION_IDENT(2,0,1,0)));
4157   }
4158
4159   /* this is needed because some graphics depend on element properties */
4160   if (game_status == GAME_MODE_PLAYING)
4161     InitElementGraphicInfo();
4162 }
4163
4164 void InitElementPropertiesAfterLoading(int engine_version)
4165 {
4166   int i;
4167
4168   /* set some other uninitialized values of custom elements in older levels */
4169   if (engine_version < VERSION_IDENT(3,1,0,0))
4170   {
4171     for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
4172     {
4173       int element = EL_CUSTOM_START + i;
4174
4175       element_info[element].access_direction = MV_ALL_DIRECTIONS;
4176
4177       element_info[element].explosion_delay = 17;
4178       element_info[element].ignition_delay = 8;
4179     }
4180   }
4181 }
4182
4183 static void InitGlobal()
4184 {
4185   int i;
4186
4187   for (i = 0; i < MAX_NUM_ELEMENTS + 1; i++)
4188   {
4189     /* check if element_name_info entry defined for each element in "main.h" */
4190     if (i < MAX_NUM_ELEMENTS && element_name_info[i].token_name == NULL)
4191       Error(ERR_EXIT, "undefined 'element_name_info' entry for element %d", i);
4192
4193     element_info[i].token_name = element_name_info[i].token_name;
4194     element_info[i].class_name = element_name_info[i].class_name;
4195     element_info[i].editor_description=element_name_info[i].editor_description;
4196
4197 #if 0
4198     printf("%04d: %s\n", i, element_name_info[i].token_name);
4199 #endif
4200   }
4201
4202   global.autoplay_leveldir = NULL;
4203   global.convert_leveldir = NULL;
4204
4205   global.frames_per_second = 0;
4206   global.fps_slowdown = FALSE;
4207   global.fps_slowdown_factor = 1;
4208 }
4209
4210 void Execute_Command(char *command)
4211 {
4212   int i;
4213
4214   if (strEqual(command, "print graphicsinfo.conf"))
4215   {
4216     printf("# You can configure additional/alternative image files here.\n");
4217     printf("# (The entries below are default and therefore commented out.)\n");
4218     printf("\n");
4219     printf("%s\n", getFormattedSetupEntry("name", "Classic Graphics"));
4220     printf("\n");
4221     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
4222     printf("\n");
4223
4224     for (i = 0; image_config[i].token != NULL; i++)
4225       printf("# %s\n", getFormattedSetupEntry(image_config[i].token,
4226                                               image_config[i].value));
4227
4228     exit(0);
4229   }
4230   else if (strEqual(command, "print soundsinfo.conf"))
4231   {
4232     printf("# You can configure additional/alternative sound files here.\n");
4233     printf("# (The entries below are default and therefore commented out.)\n");
4234     printf("\n");
4235     printf("%s\n", getFormattedSetupEntry("name", "Classic Sounds"));
4236     printf("\n");
4237     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
4238     printf("\n");
4239
4240     for (i = 0; sound_config[i].token != NULL; i++)
4241       printf("# %s\n", getFormattedSetupEntry(sound_config[i].token,
4242                                               sound_config[i].value));
4243
4244     exit(0);
4245   }
4246   else if (strEqual(command, "print musicinfo.conf"))
4247   {
4248     printf("# You can configure additional/alternative music files here.\n");
4249     printf("# (The entries below are default and therefore commented out.)\n");
4250     printf("\n");
4251     printf("%s\n", getFormattedSetupEntry("name", "Classic Music"));
4252     printf("\n");
4253     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
4254     printf("\n");
4255
4256     for (i = 0; music_config[i].token != NULL; i++)
4257       printf("# %s\n", getFormattedSetupEntry(music_config[i].token,
4258                                               music_config[i].value));
4259
4260     exit(0);
4261   }
4262   else if (strEqual(command, "print editorsetup.conf"))
4263   {
4264     printf("# You can configure your personal editor element list here.\n");
4265     printf("# (The entries below are default and therefore commented out.)\n");
4266     printf("\n");
4267
4268     /* this is needed to be able to check element list for cascade elements */
4269     InitElementPropertiesStatic();
4270     InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
4271
4272     PrintEditorElementList();
4273
4274     exit(0);
4275   }
4276   else if (strEqual(command, "print helpanim.conf"))
4277   {
4278     printf("# You can configure different element help animations here.\n");
4279     printf("# (The entries below are default and therefore commented out.)\n");
4280     printf("\n");
4281
4282     for (i = 0; helpanim_config[i].token != NULL; i++)
4283     {
4284       printf("# %s\n", getFormattedSetupEntry(helpanim_config[i].token,
4285                                               helpanim_config[i].value));
4286
4287       if (strEqual(helpanim_config[i].token, "end"))
4288         printf("#\n");
4289     }
4290
4291     exit(0);
4292   }
4293   else if (strEqual(command, "print helptext.conf"))
4294   {
4295     printf("# You can configure different element help text here.\n");
4296     printf("# (The entries below are default and therefore commented out.)\n");
4297     printf("\n");
4298
4299     for (i = 0; helptext_config[i].token != NULL; i++)
4300       printf("# %s\n", getFormattedSetupEntry(helptext_config[i].token,
4301                                               helptext_config[i].value));
4302
4303     exit(0);
4304   }
4305   else if (strncmp(command, "dump level ", 11) == 0)
4306   {
4307     char *filename = &command[11];
4308
4309     if (!fileExists(filename))
4310       Error(ERR_EXIT, "cannot open file '%s'", filename);
4311
4312     LoadLevelFromFilename(&level, filename);
4313     DumpLevel(&level);
4314
4315     exit(0);
4316   }
4317   else if (strncmp(command, "dump tape ", 10) == 0)
4318   {
4319     char *filename = &command[10];
4320
4321     if (!fileExists(filename))
4322       Error(ERR_EXIT, "cannot open file '%s'", filename);
4323
4324     LoadTapeFromFilename(filename);
4325     DumpTape(&tape);
4326
4327     exit(0);
4328   }
4329   else if (strncmp(command, "autoplay ", 9) == 0)
4330   {
4331     char *str_ptr = getStringCopy(&command[9]); /* read command parameters */
4332
4333     while (*str_ptr != '\0')                    /* continue parsing string */
4334     {
4335       /* cut leading whitespace from string, replace it by string terminator */
4336       while (*str_ptr == ' ' || *str_ptr == '\t')
4337         *str_ptr++ = '\0';
4338
4339       if (*str_ptr == '\0')                     /* end of string reached */
4340         break;
4341
4342       if (global.autoplay_leveldir == NULL)     /* read level set string */
4343       {
4344         global.autoplay_leveldir = str_ptr;
4345         global.autoplay_all = TRUE;             /* default: play all tapes */
4346
4347         for (i = 0; i < MAX_TAPES_PER_SET; i++)
4348           global.autoplay_level[i] = FALSE;
4349       }
4350       else                                      /* read level number string */
4351       {
4352         int level_nr = atoi(str_ptr);           /* get level_nr value */
4353
4354         if (level_nr >= 0 && level_nr < MAX_TAPES_PER_SET)
4355           global.autoplay_level[level_nr] = TRUE;
4356
4357         global.autoplay_all = FALSE;
4358       }
4359
4360       /* advance string pointer to the next whitespace (or end of string) */
4361       while (*str_ptr != ' ' && *str_ptr != '\t' && *str_ptr != '\0')
4362         str_ptr++;
4363     }
4364   }
4365   else if (strncmp(command, "convert ", 8) == 0)
4366   {
4367     char *str_copy = getStringCopy(&command[8]);
4368     char *str_ptr = strchr(str_copy, ' ');
4369
4370     global.convert_leveldir = str_copy;
4371     global.convert_level_nr = -1;
4372
4373     if (str_ptr != NULL)                        /* level number follows */
4374     {
4375       *str_ptr++ = '\0';                        /* terminate leveldir string */
4376       global.convert_level_nr = atoi(str_ptr);  /* get level_nr value */
4377     }
4378   }
4379
4380 #if DEBUG
4381 #if defined(TARGET_SDL)
4382   else if (strEqual(command, "SDL_ListModes"))
4383   {
4384     SDL_Rect **modes;
4385     int i;
4386
4387     SDL_Init(SDL_INIT_VIDEO);
4388
4389     /* get available fullscreen/hardware modes */
4390     modes = SDL_ListModes(NULL, SDL_FULLSCREEN | SDL_HWSURFACE);
4391
4392     /* check if there are any modes available */
4393     if (modes == NULL)
4394     {
4395       printf("No modes available!\n");
4396
4397       exit(-1);
4398     }
4399
4400     /* check if our resolution is restricted */
4401     if (modes == (SDL_Rect **)-1)
4402     {
4403       printf("All resolutions available.\n");
4404     }
4405     else
4406     {
4407       printf("Available Modes:\n");
4408
4409       for(i = 0; modes[i]; i++)
4410         printf("  %d x %d\n", modes[i]->w, modes[i]->h);
4411     }
4412
4413     exit(0);
4414   }
4415 #endif
4416 #endif
4417
4418   else
4419   {
4420     Error(ERR_EXIT_HELP, "unrecognized command '%s'", command);
4421   }
4422 }
4423
4424 static void InitSetup()
4425 {
4426   LoadSetup();                                  /* global setup info */
4427
4428   /* set some options from setup file */
4429
4430   if (setup.options.verbose)
4431     options.verbose = TRUE;
4432 }
4433
4434 static void InitGameInfo()
4435 {
4436   game.restart_level = FALSE;
4437 }
4438
4439 static void InitPlayerInfo()
4440 {
4441   int i;
4442
4443   /* choose default local player */
4444   local_player = &stored_player[0];
4445
4446   for (i = 0; i < MAX_PLAYERS; i++)
4447     stored_player[i].connected = FALSE;
4448
4449   local_player->connected = TRUE;
4450 }
4451
4452 static void InitArtworkInfo()
4453 {
4454   LoadArtworkInfo();
4455 }
4456
4457 static char *get_string_in_brackets(char *string)
4458 {
4459   char *string_in_brackets = checked_malloc(strlen(string) + 3);
4460
4461   sprintf(string_in_brackets, "[%s]", string);
4462
4463   return string_in_brackets;
4464 }
4465
4466 static char *get_level_id_suffix(int id_nr)
4467 {
4468   char *id_suffix = checked_malloc(1 + 3 + 1);
4469
4470   if (id_nr < 0 || id_nr > 999)
4471     id_nr = 0;
4472
4473   sprintf(id_suffix, ".%03d", id_nr);
4474
4475   return id_suffix;
4476 }
4477
4478 #if 0
4479 static char *get_element_class_token(int element)
4480 {
4481   char *element_class_name = element_info[element].class_name;
4482   char *element_class_token = checked_malloc(strlen(element_class_name) + 3);
4483
4484   sprintf(element_class_token, "[%s]", element_class_name);
4485
4486   return element_class_token;
4487 }
4488
4489 static char *get_action_class_token(int action)
4490 {
4491   char *action_class_name = &element_action_info[action].suffix[1];
4492   char *action_class_token = checked_malloc(strlen(action_class_name) + 3);
4493
4494   sprintf(action_class_token, "[%s]", action_class_name);
4495
4496   return action_class_token;
4497 }
4498 #endif
4499
4500 static void InitArtworkConfig()
4501 {
4502   static char *image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS + 1];
4503   static char *sound_id_prefix[2 * MAX_NUM_ELEMENTS + 1];
4504   static char *music_id_prefix[NUM_MUSIC_PREFIXES + 1];
4505   static char *action_id_suffix[NUM_ACTIONS + 1];
4506   static char *direction_id_suffix[NUM_DIRECTIONS_FULL + 1];
4507   static char *special_id_suffix[NUM_SPECIAL_GFX_ARGS + 1];
4508   static char *level_id_suffix[MAX_LEVELS + 1];
4509   static char *dummy[1] = { NULL };
4510   static char *ignore_generic_tokens[] =
4511   {
4512     "name",
4513     "sort_priority",
4514     NULL
4515   };
4516   static char **ignore_image_tokens;
4517   static char **ignore_sound_tokens;
4518   static char **ignore_music_tokens;
4519   int num_ignore_generic_tokens;
4520   int num_ignore_image_tokens;
4521   int num_ignore_sound_tokens;
4522   int num_ignore_music_tokens;
4523   int i;
4524
4525   /* dynamically determine list of generic tokens to be ignored */
4526   num_ignore_generic_tokens = 0;
4527   for (i = 0; ignore_generic_tokens[i] != NULL; i++)
4528     num_ignore_generic_tokens++;
4529
4530   /* dynamically determine list of image tokens to be ignored */
4531   num_ignore_image_tokens = num_ignore_generic_tokens;
4532   for (i = 0; image_config_vars[i].token != NULL; i++)
4533     num_ignore_image_tokens++;
4534   ignore_image_tokens =
4535     checked_malloc((num_ignore_image_tokens + 1) * sizeof(char *));
4536   for (i = 0; i < num_ignore_generic_tokens; i++)
4537     ignore_image_tokens[i] = ignore_generic_tokens[i];
4538   for (i = 0; i < num_ignore_image_tokens - num_ignore_generic_tokens; i++)
4539     ignore_image_tokens[num_ignore_generic_tokens + i] =
4540       image_config_vars[i].token;
4541   ignore_image_tokens[num_ignore_image_tokens] = NULL;
4542
4543   /* dynamically determine list of sound tokens to be ignored */
4544   num_ignore_sound_tokens = num_ignore_generic_tokens;
4545   ignore_sound_tokens =
4546     checked_malloc((num_ignore_sound_tokens + 1) * sizeof(char *));
4547   for (i = 0; i < num_ignore_generic_tokens; i++)
4548     ignore_sound_tokens[i] = ignore_generic_tokens[i];
4549   ignore_sound_tokens[num_ignore_sound_tokens] = NULL;
4550
4551   /* dynamically determine list of music tokens to be ignored */
4552   num_ignore_music_tokens = num_ignore_generic_tokens;
4553   ignore_music_tokens =
4554     checked_malloc((num_ignore_music_tokens + 1) * sizeof(char *));
4555   for (i = 0; i < num_ignore_generic_tokens; i++)
4556     ignore_music_tokens[i] = ignore_generic_tokens[i];
4557   ignore_music_tokens[num_ignore_music_tokens] = NULL;
4558
4559   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
4560     image_id_prefix[i] = element_info[i].token_name;
4561   for (i = 0; i < NUM_FONTS; i++)
4562     image_id_prefix[MAX_NUM_ELEMENTS + i] = font_info[i].token_name;
4563   image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS] = NULL;
4564
4565   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
4566     sound_id_prefix[i] = element_info[i].token_name;
4567   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
4568     sound_id_prefix[MAX_NUM_ELEMENTS + i] =
4569       get_string_in_brackets(element_info[i].class_name);
4570   sound_id_prefix[2 * MAX_NUM_ELEMENTS] = NULL;
4571
4572   for (i = 0; i < NUM_MUSIC_PREFIXES; i++)
4573     music_id_prefix[i] = music_prefix_info[i].prefix;
4574   music_id_prefix[NUM_MUSIC_PREFIXES] = NULL;
4575
4576   for (i = 0; i < NUM_ACTIONS; i++)
4577     action_id_suffix[i] = element_action_info[i].suffix;
4578   action_id_suffix[NUM_ACTIONS] = NULL;
4579
4580   for (i = 0; i < NUM_DIRECTIONS_FULL; i++)
4581     direction_id_suffix[i] = element_direction_info[i].suffix;
4582   direction_id_suffix[NUM_DIRECTIONS_FULL] = NULL;
4583
4584   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
4585     special_id_suffix[i] = special_suffix_info[i].suffix;
4586   special_id_suffix[NUM_SPECIAL_GFX_ARGS] = NULL;
4587
4588   for (i = 0; i < MAX_LEVELS; i++)
4589     level_id_suffix[i] = get_level_id_suffix(i);
4590   level_id_suffix[MAX_LEVELS] = NULL;
4591
4592   InitImageList(image_config, NUM_IMAGE_FILES, image_config_suffix,
4593                 image_id_prefix, action_id_suffix, direction_id_suffix,
4594                 special_id_suffix, ignore_image_tokens);
4595   InitSoundList(sound_config, NUM_SOUND_FILES, sound_config_suffix,
4596                 sound_id_prefix, action_id_suffix, dummy,
4597                 special_id_suffix, ignore_sound_tokens);
4598   InitMusicList(music_config, NUM_MUSIC_FILES, music_config_suffix,
4599                 music_id_prefix, special_id_suffix, level_id_suffix,
4600                 dummy, ignore_music_tokens);
4601 }
4602
4603 static void InitMixer()
4604 {
4605   OpenAudio();
4606   StartMixer();
4607 }
4608
4609 void InitGfx()
4610 {
4611   char *filename_font_initial = NULL;
4612   Bitmap *bitmap_font_initial = NULL;
4613   int font_height;
4614   int i, j;
4615
4616   /* determine settings for initial font (for displaying startup messages) */
4617   for (i = 0; image_config[i].token != NULL; i++)
4618   {
4619     for (j = 0; j < NUM_INITIAL_FONTS; j++)
4620     {
4621       char font_token[128];
4622       int len_font_token;
4623
4624       sprintf(font_token, "%s_%d", CONFIG_TOKEN_FONT_INITIAL, j + 1);
4625       len_font_token = strlen(font_token);
4626
4627       if (strEqual(image_config[i].token, font_token))
4628         filename_font_initial = image_config[i].value;
4629       else if (strlen(image_config[i].token) > len_font_token &&
4630                strncmp(image_config[i].token, font_token, len_font_token) == 0)
4631       {
4632         if (strEqual(&image_config[i].token[len_font_token], ".x"))
4633           font_initial[j].src_x = atoi(image_config[i].value);
4634         else if (strEqual(&image_config[i].token[len_font_token], ".y"))
4635           font_initial[j].src_y = atoi(image_config[i].value);
4636         else if (strEqual(&image_config[i].token[len_font_token], ".width"))
4637           font_initial[j].width = atoi(image_config[i].value);
4638         else if (strEqual(&image_config[i].token[len_font_token],".height"))
4639           font_initial[j].height = atoi(image_config[i].value);
4640       }
4641     }
4642   }
4643
4644   for (j = 0; j < NUM_INITIAL_FONTS; j++)
4645   {
4646     font_initial[j].num_chars = DEFAULT_NUM_CHARS_PER_FONT;
4647     font_initial[j].num_chars_per_line = DEFAULT_NUM_CHARS_PER_LINE;
4648   }
4649
4650   if (filename_font_initial == NULL)    /* should not happen */
4651     Error(ERR_EXIT, "cannot get filename for '%s'", CONFIG_TOKEN_FONT_INITIAL);
4652
4653   /* create additional image buffers for double-buffering and cross-fading */
4654   bitmap_db_cross = CreateBitmap(WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH);
4655   bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
4656   bitmap_db_panel = CreateBitmap(DXSIZE, DYSIZE, DEFAULT_DEPTH);
4657   bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
4658
4659   /* initialize screen properties */
4660   InitGfxFieldInfo(SX, SY, SXSIZE, SYSIZE,
4661                    REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE,
4662                    bitmap_db_field);
4663   InitGfxDoor1Info(DX, DY, DXSIZE, DYSIZE);
4664   InitGfxDoor2Info(VX, VY, VXSIZE, VYSIZE);
4665   InitGfxScrollbufferInfo(FXSIZE, FYSIZE);
4666
4667   bitmap_font_initial = LoadCustomImage(filename_font_initial);
4668
4669   for (j = 0; j < NUM_INITIAL_FONTS; j++)
4670     font_initial[j].bitmap = bitmap_font_initial;
4671
4672   InitFontGraphicInfo();
4673
4674   font_height = getFontHeight(FC_RED);
4675
4676 #if 1
4677   DrawInitText(getWindowTitleString(), 20, FC_YELLOW);
4678 #else
4679   DrawInitText(getProgramInitString(), 20, FC_YELLOW);
4680 #endif
4681   DrawInitText(PROGRAM_COPYRIGHT_STRING, 50, FC_RED);
4682   DrawInitText(PROGRAM_WEBSITE_STRING, WIN_YSIZE - 20 - font_height, FC_RED);
4683
4684   DrawInitText("Loading graphics", 120, FC_GREEN);
4685 }
4686
4687 void RedrawBackground()
4688 {
4689   BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, backbuffer,
4690              0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
4691
4692   redraw_mask = REDRAW_ALL;
4693 }
4694
4695 void InitGfxBackground()
4696 {
4697   int x, y;
4698
4699   fieldbuffer = bitmap_db_field;
4700   SetDrawtoField(DRAW_BACKBUFFER);
4701
4702   RedrawBackground();
4703
4704   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
4705   ClearRectangle(bitmap_db_door, 0, 0, 3 * DXSIZE, DYSIZE + VYSIZE);
4706
4707   for (x = 0; x < MAX_BUF_XSIZE; x++)
4708     for (y = 0; y < MAX_BUF_YSIZE; y++)
4709       redraw[x][y] = 0;
4710   redraw_tiles = 0;
4711   redraw_mask = REDRAW_ALL;
4712 }
4713
4714 static void InitLevelInfo()
4715 {
4716   LoadLevelInfo();                              /* global level info */
4717   LoadLevelSetup_LastSeries();                  /* last played series info */
4718   LoadLevelSetup_SeriesInfo();                  /* last played level info */
4719 }
4720
4721 void InitLevelArtworkInfo()
4722 {
4723   LoadLevelArtworkInfo();
4724 }
4725
4726 static void InitImages()
4727 {
4728   setLevelArtworkDir(artwork.gfx_first);
4729
4730 #if 0
4731   printf("::: InitImages for '%s' ['%s', '%s'] ['%s', '%s']\n",
4732          leveldir_current->identifier,
4733          artwork.gfx_current_identifier,
4734          artwork.gfx_current->identifier,
4735          leveldir_current->graphics_set,
4736          leveldir_current->graphics_path);
4737 #endif
4738
4739   ReloadCustomImages();
4740
4741   LoadCustomElementDescriptions();
4742   LoadSpecialMenuDesignSettings();
4743
4744   ReinitializeGraphics();
4745 }
4746
4747 static void InitSound(char *identifier)
4748 {
4749   if (identifier == NULL)
4750     identifier = artwork.snd_current->identifier;
4751
4752   /* set artwork path to send it to the sound server process */
4753   setLevelArtworkDir(artwork.snd_first);
4754
4755   InitReloadCustomSounds(identifier);
4756   ReinitializeSounds();
4757 }
4758
4759 static void InitMusic(char *identifier)
4760 {
4761   if (identifier == NULL)
4762     identifier = artwork.mus_current->identifier;
4763
4764   /* set artwork path to send it to the sound server process */
4765   setLevelArtworkDir(artwork.mus_first);
4766
4767   InitReloadCustomMusic(identifier);
4768   ReinitializeMusic();
4769 }
4770
4771 void InitNetworkServer()
4772 {
4773 #if defined(NETWORK_AVALIABLE)
4774   int nr_wanted;
4775 #endif
4776
4777   if (!options.network)
4778     return;
4779
4780 #if defined(NETWORK_AVALIABLE)
4781   nr_wanted = Request("Choose player", REQ_PLAYER | REQ_STAY_CLOSED);
4782
4783   if (!ConnectToServer(options.server_host, options.server_port))
4784     Error(ERR_EXIT, "cannot connect to network game server");
4785
4786   SendToServer_PlayerName(setup.player_name);
4787   SendToServer_ProtocolVersion();
4788
4789   if (nr_wanted)
4790     SendToServer_NrWanted(nr_wanted);
4791 #endif
4792 }
4793
4794 static char *getNewArtworkIdentifier(int type)
4795 {
4796   static char *leveldir_current_identifier[3] = { NULL, NULL, NULL };
4797   static boolean last_override_level_artwork[3] = { FALSE, FALSE, FALSE };
4798   static boolean last_has_level_artwork_set[3] = { FALSE, FALSE, FALSE };
4799   static boolean initialized[3] = { FALSE, FALSE, FALSE };
4800   TreeInfo *artwork_first_node = ARTWORK_FIRST_NODE(artwork, type);
4801   boolean setup_override_artwork = SETUP_OVERRIDE_ARTWORK(setup, type);
4802   char *setup_artwork_set = SETUP_ARTWORK_SET(setup, type);
4803   char *leveldir_identifier = leveldir_current->identifier;
4804 #if 1
4805   /* !!! setLevelArtworkDir() should be moved to an earlier stage !!! */
4806   char *leveldir_artwork_set = setLevelArtworkDir(artwork_first_node);
4807 #else
4808   char *leveldir_artwork_set = LEVELDIR_ARTWORK_SET(leveldir_current, type);
4809 #endif
4810   boolean has_level_artwork_set = (leveldir_artwork_set != NULL);
4811   char *artwork_current_identifier;
4812   char *artwork_new_identifier = NULL;  /* default: nothing has changed */
4813
4814   /* leveldir_current may be invalid (level group, parent link) */
4815   if (!validLevelSeries(leveldir_current))
4816     return NULL;
4817
4818   /* 1st step: determine artwork set to be activated in descending order:
4819      --------------------------------------------------------------------
4820      1. setup artwork (when configured to override everything else)
4821      2. artwork set configured in "levelinfo.conf" of current level set
4822         (artwork in level directory will have priority when loading later)
4823      3. artwork in level directory (stored in artwork sub-directory)
4824      4. setup artwork (currently configured in setup menu) */
4825
4826   if (setup_override_artwork)
4827     artwork_current_identifier = setup_artwork_set;
4828   else if (leveldir_artwork_set != NULL)
4829     artwork_current_identifier = leveldir_artwork_set;
4830   else if (getTreeInfoFromIdentifier(artwork_first_node, leveldir_identifier))
4831     artwork_current_identifier = leveldir_identifier;
4832   else
4833     artwork_current_identifier = setup_artwork_set;
4834
4835
4836   /* 2nd step: check if it is really needed to reload artwork set
4837      ------------------------------------------------------------ */
4838
4839 #if 0
4840   if (type == ARTWORK_TYPE_GRAPHICS)
4841     printf("::: 0: '%s' ['%s', '%s'] ['%s' ('%s')]\n",
4842            artwork_new_identifier,
4843            ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4844            artwork_current_identifier,
4845            leveldir_current->graphics_set,
4846            leveldir_current->identifier);
4847 #endif
4848
4849   /* ---------- reload if level set and also artwork set has changed ------- */
4850   if (leveldir_current_identifier[type] != leveldir_identifier &&
4851       (last_has_level_artwork_set[type] || has_level_artwork_set))
4852     artwork_new_identifier = artwork_current_identifier;
4853
4854   leveldir_current_identifier[type] = leveldir_identifier;
4855   last_has_level_artwork_set[type] = has_level_artwork_set;
4856
4857 #if 0
4858   if (type == ARTWORK_TYPE_GRAPHICS)
4859     printf("::: 1: '%s'\n", artwork_new_identifier);
4860 #endif
4861
4862   /* ---------- reload if "override artwork" setting has changed ----------- */
4863   if (last_override_level_artwork[type] != setup_override_artwork)
4864     artwork_new_identifier = artwork_current_identifier;
4865
4866   last_override_level_artwork[type] = setup_override_artwork;
4867
4868 #if 0
4869   if (type == ARTWORK_TYPE_GRAPHICS)
4870     printf("::: 2: '%s'\n", artwork_new_identifier);
4871 #endif
4872
4873   /* ---------- reload if current artwork identifier has changed ----------- */
4874   if (!strEqual(ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4875                 artwork_current_identifier))
4876     artwork_new_identifier = artwork_current_identifier;
4877
4878   *(ARTWORK_CURRENT_IDENTIFIER_PTR(artwork, type))= artwork_current_identifier;
4879
4880 #if 0
4881   if (type == ARTWORK_TYPE_GRAPHICS)
4882     printf("::: 3: '%s'\n", artwork_new_identifier);
4883 #endif
4884
4885   /* ---------- do not reload directly after starting ---------------------- */
4886   if (!initialized[type])
4887     artwork_new_identifier = NULL;
4888
4889   initialized[type] = TRUE;
4890
4891 #if 0
4892   if (type == ARTWORK_TYPE_GRAPHICS)
4893     printf("::: 4: '%s'\n", artwork_new_identifier);
4894 #endif
4895
4896 #if 0
4897   if (type == ARTWORK_TYPE_GRAPHICS)
4898     printf("CHECKING OLD/NEW GFX:\n- OLD: %s\n- NEW: %s ['%s', '%s'] ['%s']\n",
4899            artwork.gfx_current_identifier, artwork_current_identifier,
4900            artwork.gfx_current->identifier, leveldir_current->graphics_set,
4901            artwork_new_identifier);
4902 #endif
4903
4904   return artwork_new_identifier;
4905 }
4906
4907 void ReloadCustomArtwork(int force_reload)
4908 {
4909   char *gfx_new_identifier;
4910   char *snd_new_identifier;
4911   char *mus_new_identifier;
4912   boolean force_reload_gfx = (force_reload & (1 << ARTWORK_TYPE_GRAPHICS));
4913   boolean force_reload_snd = (force_reload & (1 << ARTWORK_TYPE_SOUNDS));
4914   boolean force_reload_mus = (force_reload & (1 << ARTWORK_TYPE_MUSIC));
4915   boolean redraw_screen = FALSE;
4916
4917   force_reload_gfx |= AdjustGraphicsForEMC();
4918
4919   gfx_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_GRAPHICS);
4920   snd_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_SOUNDS);
4921   mus_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_MUSIC);
4922
4923   if (gfx_new_identifier != NULL || force_reload_gfx)
4924   {
4925 #if 0
4926     printf("RELOADING GRAPHICS '%s' -> '%s' ['%s', '%s']\n",
4927            artwork.gfx_current_identifier,
4928            gfx_new_identifier,
4929            artwork.gfx_current->identifier,
4930            leveldir_current->graphics_set);
4931 #endif
4932
4933     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4934
4935     InitImages();
4936
4937     redraw_screen = TRUE;
4938   }
4939
4940   if (snd_new_identifier != NULL || force_reload_snd)
4941   {
4942     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4943
4944     InitSound(snd_new_identifier);
4945
4946     redraw_screen = TRUE;
4947   }
4948
4949   if (mus_new_identifier != NULL || force_reload_mus)
4950   {
4951     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4952
4953     InitMusic(mus_new_identifier);
4954
4955     redraw_screen = TRUE;
4956   }
4957
4958   if (redraw_screen)
4959   {
4960     RedrawBackground();
4961
4962     /* force redraw of (open or closed) door graphics */
4963     SetDoorState(DOOR_OPEN_ALL);
4964     CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
4965   }
4966 }
4967
4968 void KeyboardAutoRepeatOffUnlessAutoplay()
4969 {
4970   if (global.autoplay_leveldir == NULL)
4971     KeyboardAutoRepeatOff();
4972 }
4973
4974
4975 /* ========================================================================= */
4976 /* OpenAll()                                                                 */
4977 /* ========================================================================= */
4978
4979 void OpenAll()
4980 {
4981   InitGlobal();                 /* initialize some global variables */
4982
4983   if (options.execute_command)
4984     Execute_Command(options.execute_command);
4985
4986   if (options.serveronly)
4987   {
4988 #if defined(PLATFORM_UNIX)
4989     NetworkServer(options.server_port, options.serveronly);
4990 #else
4991     Error(ERR_WARN, "networking only supported in Unix version");
4992 #endif
4993
4994     exit(0);                    /* never reached, server loops forever */
4995   }
4996
4997   InitSetup();
4998
4999   InitGameInfo();
5000   InitPlayerInfo();
5001   InitArtworkInfo();            /* needed before loading gfx, sound & music */
5002   InitArtworkConfig();          /* needed before forking sound child process */
5003   InitMixer();
5004
5005   InitCounter();
5006
5007   InitRND(NEW_RANDOMIZE);
5008   InitSimpleRandom(NEW_RANDOMIZE);
5009
5010   InitJoysticks();
5011
5012   InitVideoDisplay();
5013   InitVideoBuffer(WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH, setup.fullscreen);
5014
5015   InitEventFilter(FilterMouseMotionEvents);
5016
5017   InitElementPropertiesStatic();
5018   InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
5019
5020   InitGfx();
5021
5022   // debug_print_timestamp(0, "INIT");
5023   InitLevelInfo();
5024   // debug_print_timestamp(0, "TIME InitLevelInfo:        ");
5025   InitLevelArtworkInfo();
5026   // debug_print_timestamp(0, "TIME InitLevelArtworkInfo: ");
5027
5028   InitImages();                 /* needs to know current level directory */
5029   InitSound(NULL);              /* needs to know current level directory */
5030   InitMusic(NULL);              /* needs to know current level directory */
5031
5032   InitGfxBackground();
5033
5034 #if 1
5035   em_open_all();
5036 #endif
5037
5038   if (global.autoplay_leveldir)
5039   {
5040     AutoPlayTape();
5041     return;
5042   }
5043   else if (global.convert_leveldir)
5044   {
5045     ConvertLevels();
5046     return;
5047   }
5048
5049   game_status = GAME_MODE_MAIN;
5050
5051   DrawMainMenu();
5052
5053   InitNetworkServer();
5054 }
5055
5056 void CloseAllAndExit(int exit_value)
5057 {
5058   StopSounds();
5059   FreeAllSounds();
5060   FreeAllMusic();
5061   CloseAudio();         /* called after freeing sounds (needed for SDL) */
5062
5063 #if 1
5064   em_close_all();
5065 #endif
5066
5067   FreeAllImages();
5068
5069 #if defined(TARGET_SDL)
5070   if (network_server)   /* terminate network server */
5071     SDL_KillThread(server_thread);
5072 #endif
5073
5074   CloseVideoDisplay();
5075   ClosePlatformDependentStuff();
5076
5077   if (exit_value != 0)
5078     NotifyUserAboutErrorFile();
5079
5080   exit(exit_value);
5081 }