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_STEELWALL_SLIPPERY,
2194     EL_EMC_STEELWALL_1,
2195     EL_EMC_STEELWALL_2,
2196     EL_EMC_STEELWALL_3,
2197     EL_EMC_STEELWALL_4,
2198     EL_CRYSTAL,
2199     EL_GATE_1,
2200     EL_GATE_2,
2201     EL_GATE_3,
2202     EL_GATE_4,
2203     EL_GATE_1_GRAY,
2204     EL_GATE_2_GRAY,
2205     EL_GATE_3_GRAY,
2206     EL_GATE_4_GRAY,
2207     EL_GATE_1_GRAY_ACTIVE,
2208     EL_GATE_2_GRAY_ACTIVE,
2209     EL_GATE_3_GRAY_ACTIVE,
2210     EL_GATE_4_GRAY_ACTIVE,
2211     EL_EM_GATE_1,
2212     EL_EM_GATE_2,
2213     EL_EM_GATE_3,
2214     EL_EM_GATE_4,
2215     EL_EM_GATE_1_GRAY,
2216     EL_EM_GATE_2_GRAY,
2217     EL_EM_GATE_3_GRAY,
2218     EL_EM_GATE_4_GRAY,
2219     EL_EM_GATE_1_GRAY_ACTIVE,
2220     EL_EM_GATE_2_GRAY_ACTIVE,
2221     EL_EM_GATE_3_GRAY_ACTIVE,
2222     EL_EM_GATE_4_GRAY_ACTIVE,
2223     EL_EMC_GATE_5,
2224     EL_EMC_GATE_6,
2225     EL_EMC_GATE_7,
2226     EL_EMC_GATE_8,
2227     EL_EMC_GATE_5_GRAY,
2228     EL_EMC_GATE_6_GRAY,
2229     EL_EMC_GATE_7_GRAY,
2230     EL_EMC_GATE_8_GRAY,
2231     EL_EMC_GATE_5_GRAY_ACTIVE,
2232     EL_EMC_GATE_6_GRAY_ACTIVE,
2233     EL_EMC_GATE_7_GRAY_ACTIVE,
2234     EL_EMC_GATE_8_GRAY_ACTIVE,
2235     EL_SWITCHGATE_OPEN,
2236     EL_SWITCHGATE_OPENING,
2237     EL_SWITCHGATE_CLOSED,
2238     EL_SWITCHGATE_CLOSING,
2239 #if 0
2240     EL_SWITCHGATE_SWITCH_UP,
2241     EL_SWITCHGATE_SWITCH_DOWN,
2242 #endif
2243     EL_TIMEGATE_OPEN,
2244     EL_TIMEGATE_OPENING,
2245     EL_TIMEGATE_CLOSED,
2246     EL_TIMEGATE_CLOSING,
2247 #if 0
2248     EL_TIMEGATE_SWITCH,
2249     EL_TIMEGATE_SWITCH_ACTIVE,
2250 #endif
2251     EL_TUBE_ANY,
2252     EL_TUBE_VERTICAL,
2253     EL_TUBE_HORIZONTAL,
2254     EL_TUBE_VERTICAL_LEFT,
2255     EL_TUBE_VERTICAL_RIGHT,
2256     EL_TUBE_HORIZONTAL_UP,
2257     EL_TUBE_HORIZONTAL_DOWN,
2258     EL_TUBE_LEFT_UP,
2259     EL_TUBE_LEFT_DOWN,
2260     EL_TUBE_RIGHT_UP,
2261     EL_TUBE_RIGHT_DOWN,
2262
2263     -1
2264   };
2265
2266   static int ep_slippery[] =
2267   {
2268     EL_WALL_SLIPPERY,
2269     EL_BD_WALL,
2270     EL_ROCK,
2271     EL_BD_ROCK,
2272     EL_EMERALD,
2273     EL_BD_DIAMOND,
2274     EL_EMERALD_YELLOW,
2275     EL_EMERALD_RED,
2276     EL_EMERALD_PURPLE,
2277     EL_DIAMOND,
2278     EL_BOMB,
2279     EL_NUT,
2280     EL_ROBOT_WHEEL_ACTIVE,
2281     EL_ROBOT_WHEEL,
2282     EL_TIME_ORB_FULL,
2283     EL_TIME_ORB_EMPTY,
2284     EL_LAMP_ACTIVE,
2285     EL_LAMP,
2286     EL_ACID_POOL_TOPLEFT,
2287     EL_ACID_POOL_TOPRIGHT,
2288     EL_SATELLITE,
2289     EL_SP_ZONK,
2290     EL_SP_INFOTRON,
2291     EL_SP_CHIP_SINGLE,
2292     EL_SP_CHIP_LEFT,
2293     EL_SP_CHIP_RIGHT,
2294     EL_SP_CHIP_TOP,
2295     EL_SP_CHIP_BOTTOM,
2296     EL_SPEED_PILL,
2297     EL_STEELWALL_SLIPPERY,
2298     EL_PEARL,
2299     EL_CRYSTAL,
2300     EL_EMC_WALL_SLIPPERY_1,
2301     EL_EMC_WALL_SLIPPERY_2,
2302     EL_EMC_WALL_SLIPPERY_3,
2303     EL_EMC_WALL_SLIPPERY_4,
2304     EL_EMC_MAGIC_BALL,
2305     EL_EMC_MAGIC_BALL_ACTIVE,
2306
2307     -1
2308   };
2309
2310   static int ep_can_change[] =
2311   {
2312     -1
2313   };
2314
2315   static int ep_can_move[] =
2316   {
2317     /* same elements as in 'pb_can_move_into_acid' */
2318     EL_BUG,
2319     EL_SPACESHIP,
2320     EL_BD_BUTTERFLY,
2321     EL_BD_FIREFLY,
2322     EL_YAMYAM,
2323     EL_DARK_YAMYAM,
2324     EL_ROBOT,
2325     EL_PACMAN,
2326     EL_MOLE,
2327     EL_PENGUIN,
2328     EL_PIG,
2329     EL_DRAGON,
2330     EL_SATELLITE,
2331     EL_SP_SNIKSNAK,
2332     EL_SP_ELECTRON,
2333     EL_BALLOON,
2334     EL_SPRING,
2335     EL_EMC_ANDROID,
2336
2337     -1
2338   };
2339
2340   static int ep_can_fall[] =
2341   {
2342     EL_ROCK,
2343     EL_BD_ROCK,
2344     EL_EMERALD,
2345     EL_BD_DIAMOND,
2346     EL_EMERALD_YELLOW,
2347     EL_EMERALD_RED,
2348     EL_EMERALD_PURPLE,
2349     EL_DIAMOND,
2350     EL_BOMB,
2351     EL_NUT,
2352     EL_AMOEBA_DROP,
2353     EL_QUICKSAND_FULL,
2354     EL_MAGIC_WALL_FULL,
2355     EL_BD_MAGIC_WALL_FULL,
2356     EL_TIME_ORB_FULL,
2357     EL_TIME_ORB_EMPTY,
2358     EL_SP_ZONK,
2359     EL_SP_INFOTRON,
2360     EL_SP_DISK_ORANGE,
2361     EL_PEARL,
2362     EL_CRYSTAL,
2363     EL_SPRING,
2364     EL_DX_SUPABOMB,
2365
2366     -1
2367   };
2368
2369   static int ep_can_smash_player[] =
2370   {
2371     EL_ROCK,
2372     EL_BD_ROCK,
2373     EL_EMERALD,
2374     EL_BD_DIAMOND,
2375     EL_EMERALD_YELLOW,
2376     EL_EMERALD_RED,
2377     EL_EMERALD_PURPLE,
2378     EL_DIAMOND,
2379     EL_BOMB,
2380     EL_NUT,
2381     EL_AMOEBA_DROP,
2382     EL_TIME_ORB_FULL,
2383     EL_TIME_ORB_EMPTY,
2384     EL_SP_ZONK,
2385     EL_SP_INFOTRON,
2386     EL_SP_DISK_ORANGE,
2387     EL_PEARL,
2388     EL_CRYSTAL,
2389     EL_SPRING,
2390     EL_DX_SUPABOMB,
2391
2392     -1
2393   };
2394
2395   static int ep_can_smash_enemies[] =
2396   {
2397     EL_ROCK,
2398     EL_BD_ROCK,
2399     EL_SP_ZONK,
2400
2401     -1
2402   };
2403
2404   static int ep_can_smash_everything[] =
2405   {
2406     EL_ROCK,
2407     EL_BD_ROCK,
2408     EL_SP_ZONK,
2409
2410     -1
2411   };
2412
2413   static int ep_explodes_by_fire[] =
2414   {
2415     /* same elements as in 'ep_explodes_impact' */
2416     EL_BOMB,
2417     EL_SP_DISK_ORANGE,
2418     EL_DX_SUPABOMB,
2419
2420     /* same elements as in 'ep_explodes_smashed' */
2421     EL_SATELLITE,
2422     EL_PIG,
2423     EL_DRAGON,
2424     EL_MOLE,
2425
2426     /* new elements */
2427     EL_DYNAMITE,
2428     EL_DYNAMITE_ACTIVE,
2429     EL_EM_DYNAMITE,
2430     EL_EM_DYNAMITE_ACTIVE,
2431     EL_DYNABOMB_PLAYER_1_ACTIVE,
2432     EL_DYNABOMB_PLAYER_2_ACTIVE,
2433     EL_DYNABOMB_PLAYER_3_ACTIVE,
2434     EL_DYNABOMB_PLAYER_4_ACTIVE,
2435     EL_DYNABOMB_INCREASE_NUMBER,
2436     EL_DYNABOMB_INCREASE_SIZE,
2437     EL_DYNABOMB_INCREASE_POWER,
2438     EL_SP_DISK_RED_ACTIVE,
2439     EL_BUG,
2440     EL_PENGUIN,
2441     EL_SP_DISK_RED,
2442     EL_SP_DISK_YELLOW,
2443     EL_SP_SNIKSNAK,
2444     EL_SP_ELECTRON,
2445 #if 0
2446     EL_BLACK_ORB,
2447 #endif
2448
2449     -1
2450   };
2451
2452   static int ep_explodes_smashed[] =
2453   {
2454     /* same elements as in 'ep_explodes_impact' */
2455     EL_BOMB,
2456     EL_SP_DISK_ORANGE,
2457     EL_DX_SUPABOMB,
2458
2459     /* new elements */
2460     EL_SATELLITE,
2461     EL_PIG,
2462     EL_DRAGON,
2463     EL_MOLE,
2464
2465     -1
2466   };
2467
2468   static int ep_explodes_impact[] =
2469   {
2470     EL_BOMB,
2471     EL_SP_DISK_ORANGE,
2472     EL_DX_SUPABOMB,
2473
2474     -1
2475   };
2476
2477   static int ep_walkable_over[] =
2478   {
2479     EL_EMPTY_SPACE,
2480     EL_SP_EMPTY_SPACE,
2481     EL_SOKOBAN_FIELD_EMPTY,
2482     EL_EXIT_OPEN,
2483     EL_SP_EXIT_OPEN,
2484     EL_SP_EXIT_OPENING,
2485     EL_GATE_1,
2486     EL_GATE_2,
2487     EL_GATE_3,
2488     EL_GATE_4,
2489     EL_GATE_1_GRAY,
2490     EL_GATE_2_GRAY,
2491     EL_GATE_3_GRAY,
2492     EL_GATE_4_GRAY,
2493     EL_GATE_1_GRAY_ACTIVE,
2494     EL_GATE_2_GRAY_ACTIVE,
2495     EL_GATE_3_GRAY_ACTIVE,
2496     EL_GATE_4_GRAY_ACTIVE,
2497     EL_PENGUIN,
2498     EL_PIG,
2499     EL_DRAGON,
2500
2501     -1
2502   };
2503
2504   static int ep_walkable_inside[] =
2505   {
2506     EL_TUBE_ANY,
2507     EL_TUBE_VERTICAL,
2508     EL_TUBE_HORIZONTAL,
2509     EL_TUBE_VERTICAL_LEFT,
2510     EL_TUBE_VERTICAL_RIGHT,
2511     EL_TUBE_HORIZONTAL_UP,
2512     EL_TUBE_HORIZONTAL_DOWN,
2513     EL_TUBE_LEFT_UP,
2514     EL_TUBE_LEFT_DOWN,
2515     EL_TUBE_RIGHT_UP,
2516     EL_TUBE_RIGHT_DOWN,
2517
2518     -1
2519   };
2520
2521   static int ep_walkable_under[] =
2522   {
2523     -1
2524   };
2525
2526   static int ep_passable_over[] =
2527   {
2528     EL_EM_GATE_1,
2529     EL_EM_GATE_2,
2530     EL_EM_GATE_3,
2531     EL_EM_GATE_4,
2532     EL_EM_GATE_1_GRAY,
2533     EL_EM_GATE_2_GRAY,
2534     EL_EM_GATE_3_GRAY,
2535     EL_EM_GATE_4_GRAY,
2536     EL_EM_GATE_1_GRAY_ACTIVE,
2537     EL_EM_GATE_2_GRAY_ACTIVE,
2538     EL_EM_GATE_3_GRAY_ACTIVE,
2539     EL_EM_GATE_4_GRAY_ACTIVE,
2540     EL_EMC_GATE_5,
2541     EL_EMC_GATE_6,
2542     EL_EMC_GATE_7,
2543     EL_EMC_GATE_8,
2544     EL_EMC_GATE_5_GRAY,
2545     EL_EMC_GATE_6_GRAY,
2546     EL_EMC_GATE_7_GRAY,
2547     EL_EMC_GATE_8_GRAY,
2548     EL_EMC_GATE_5_GRAY_ACTIVE,
2549     EL_EMC_GATE_6_GRAY_ACTIVE,
2550     EL_EMC_GATE_7_GRAY_ACTIVE,
2551     EL_EMC_GATE_8_GRAY_ACTIVE,
2552     EL_SWITCHGATE_OPEN,
2553     EL_TIMEGATE_OPEN,
2554
2555     -1
2556   };
2557
2558   static int ep_passable_inside[] =
2559   {
2560     EL_SP_PORT_LEFT,
2561     EL_SP_PORT_RIGHT,
2562     EL_SP_PORT_UP,
2563     EL_SP_PORT_DOWN,
2564     EL_SP_PORT_HORIZONTAL,
2565     EL_SP_PORT_VERTICAL,
2566     EL_SP_PORT_ANY,
2567     EL_SP_GRAVITY_PORT_LEFT,
2568     EL_SP_GRAVITY_PORT_RIGHT,
2569     EL_SP_GRAVITY_PORT_UP,
2570     EL_SP_GRAVITY_PORT_DOWN,
2571     EL_SP_GRAVITY_ON_PORT_LEFT,
2572     EL_SP_GRAVITY_ON_PORT_RIGHT,
2573     EL_SP_GRAVITY_ON_PORT_UP,
2574     EL_SP_GRAVITY_ON_PORT_DOWN,
2575     EL_SP_GRAVITY_OFF_PORT_LEFT,
2576     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2577     EL_SP_GRAVITY_OFF_PORT_UP,
2578     EL_SP_GRAVITY_OFF_PORT_DOWN,
2579
2580     -1
2581   };
2582
2583   static int ep_passable_under[] =
2584   {
2585     -1
2586   };
2587
2588   static int ep_droppable[] =
2589   {
2590     -1
2591   };
2592
2593   static int ep_explodes_1x1_old[] =
2594   {
2595     -1
2596   };
2597
2598   static int ep_pushable[] =
2599   {
2600     EL_ROCK,
2601     EL_BOMB,
2602     EL_DX_SUPABOMB,
2603     EL_NUT,
2604     EL_TIME_ORB_EMPTY,
2605     EL_SP_ZONK,
2606     EL_SP_DISK_ORANGE,
2607     EL_SPRING,
2608     EL_BD_ROCK,
2609     EL_SOKOBAN_OBJECT,
2610     EL_SOKOBAN_FIELD_FULL,
2611     EL_SATELLITE,
2612     EL_SP_DISK_YELLOW,
2613     EL_BALLOON,
2614     EL_EMC_ANDROID,
2615
2616     -1
2617   };
2618
2619   static int ep_explodes_cross_old[] =
2620   {
2621     -1
2622   };
2623
2624   static int ep_protected[] =
2625   {
2626     /* same elements as in 'ep_walkable_inside' */
2627     EL_TUBE_ANY,
2628     EL_TUBE_VERTICAL,
2629     EL_TUBE_HORIZONTAL,
2630     EL_TUBE_VERTICAL_LEFT,
2631     EL_TUBE_VERTICAL_RIGHT,
2632     EL_TUBE_HORIZONTAL_UP,
2633     EL_TUBE_HORIZONTAL_DOWN,
2634     EL_TUBE_LEFT_UP,
2635     EL_TUBE_LEFT_DOWN,
2636     EL_TUBE_RIGHT_UP,
2637     EL_TUBE_RIGHT_DOWN,
2638
2639     /* same elements as in 'ep_passable_over' */
2640     EL_EM_GATE_1,
2641     EL_EM_GATE_2,
2642     EL_EM_GATE_3,
2643     EL_EM_GATE_4,
2644     EL_EM_GATE_1_GRAY,
2645     EL_EM_GATE_2_GRAY,
2646     EL_EM_GATE_3_GRAY,
2647     EL_EM_GATE_4_GRAY,
2648     EL_EM_GATE_1_GRAY_ACTIVE,
2649     EL_EM_GATE_2_GRAY_ACTIVE,
2650     EL_EM_GATE_3_GRAY_ACTIVE,
2651     EL_EM_GATE_4_GRAY_ACTIVE,
2652     EL_EMC_GATE_5,
2653     EL_EMC_GATE_6,
2654     EL_EMC_GATE_7,
2655     EL_EMC_GATE_8,
2656     EL_EMC_GATE_5_GRAY,
2657     EL_EMC_GATE_6_GRAY,
2658     EL_EMC_GATE_7_GRAY,
2659     EL_EMC_GATE_8_GRAY,
2660     EL_EMC_GATE_5_GRAY_ACTIVE,
2661     EL_EMC_GATE_6_GRAY_ACTIVE,
2662     EL_EMC_GATE_7_GRAY_ACTIVE,
2663     EL_EMC_GATE_8_GRAY_ACTIVE,
2664     EL_SWITCHGATE_OPEN,
2665     EL_TIMEGATE_OPEN,
2666
2667     /* same elements as in 'ep_passable_inside' */
2668     EL_SP_PORT_LEFT,
2669     EL_SP_PORT_RIGHT,
2670     EL_SP_PORT_UP,
2671     EL_SP_PORT_DOWN,
2672     EL_SP_PORT_HORIZONTAL,
2673     EL_SP_PORT_VERTICAL,
2674     EL_SP_PORT_ANY,
2675     EL_SP_GRAVITY_PORT_LEFT,
2676     EL_SP_GRAVITY_PORT_RIGHT,
2677     EL_SP_GRAVITY_PORT_UP,
2678     EL_SP_GRAVITY_PORT_DOWN,
2679     EL_SP_GRAVITY_ON_PORT_LEFT,
2680     EL_SP_GRAVITY_ON_PORT_RIGHT,
2681     EL_SP_GRAVITY_ON_PORT_UP,
2682     EL_SP_GRAVITY_ON_PORT_DOWN,
2683     EL_SP_GRAVITY_OFF_PORT_LEFT,
2684     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2685     EL_SP_GRAVITY_OFF_PORT_UP,
2686     EL_SP_GRAVITY_OFF_PORT_DOWN,
2687
2688     -1
2689   };
2690
2691   static int ep_throwable[] =
2692   {
2693     -1
2694   };
2695
2696   static int ep_can_explode[] =
2697   {
2698     /* same elements as in 'ep_explodes_impact' */
2699     EL_BOMB,
2700     EL_SP_DISK_ORANGE,
2701     EL_DX_SUPABOMB,
2702
2703     /* same elements as in 'ep_explodes_smashed' */
2704     EL_SATELLITE,
2705     EL_PIG,
2706     EL_DRAGON,
2707     EL_MOLE,
2708
2709     /* elements that can explode by explosion or by dragonfire */
2710     EL_DYNAMITE,
2711     EL_DYNAMITE_ACTIVE,
2712     EL_EM_DYNAMITE,
2713     EL_EM_DYNAMITE_ACTIVE,
2714     EL_DYNABOMB_PLAYER_1_ACTIVE,
2715     EL_DYNABOMB_PLAYER_2_ACTIVE,
2716     EL_DYNABOMB_PLAYER_3_ACTIVE,
2717     EL_DYNABOMB_PLAYER_4_ACTIVE,
2718     EL_DYNABOMB_INCREASE_NUMBER,
2719     EL_DYNABOMB_INCREASE_SIZE,
2720     EL_DYNABOMB_INCREASE_POWER,
2721     EL_SP_DISK_RED_ACTIVE,
2722     EL_BUG,
2723     EL_PENGUIN,
2724     EL_SP_DISK_RED,
2725     EL_SP_DISK_YELLOW,
2726     EL_SP_SNIKSNAK,
2727     EL_SP_ELECTRON,
2728
2729     /* elements that can explode only by explosion */
2730     EL_BLACK_ORB,
2731
2732     -1
2733   };
2734
2735   static int ep_gravity_reachable[] =
2736   {
2737     EL_SAND,
2738     EL_SP_BASE,
2739     EL_TRAP,
2740     EL_INVISIBLE_SAND,
2741     EL_INVISIBLE_SAND_ACTIVE,
2742     EL_SP_PORT_LEFT,
2743     EL_SP_PORT_RIGHT,
2744     EL_SP_PORT_UP,
2745     EL_SP_PORT_DOWN,
2746     EL_SP_PORT_HORIZONTAL,
2747     EL_SP_PORT_VERTICAL,
2748     EL_SP_PORT_ANY,
2749     EL_SP_GRAVITY_PORT_LEFT,
2750     EL_SP_GRAVITY_PORT_RIGHT,
2751     EL_SP_GRAVITY_PORT_UP,
2752     EL_SP_GRAVITY_PORT_DOWN,
2753     EL_SP_GRAVITY_ON_PORT_LEFT,
2754     EL_SP_GRAVITY_ON_PORT_RIGHT,
2755     EL_SP_GRAVITY_ON_PORT_UP,
2756     EL_SP_GRAVITY_ON_PORT_DOWN,
2757     EL_SP_GRAVITY_OFF_PORT_LEFT,
2758     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2759     EL_SP_GRAVITY_OFF_PORT_UP,
2760     EL_SP_GRAVITY_OFF_PORT_DOWN,
2761     EL_EMC_GRASS,
2762
2763     -1
2764   };
2765
2766   static int ep_player[] =
2767   {
2768     EL_PLAYER_1,
2769     EL_PLAYER_2,
2770     EL_PLAYER_3,
2771     EL_PLAYER_4,
2772     EL_SP_MURPHY,
2773     EL_SOKOBAN_FIELD_PLAYER,
2774     EL_TRIGGER_PLAYER,
2775
2776     -1
2777   };
2778
2779   static int ep_can_pass_magic_wall[] =
2780   {
2781     EL_ROCK,
2782     EL_BD_ROCK,
2783     EL_EMERALD,
2784     EL_BD_DIAMOND,
2785     EL_EMERALD_YELLOW,
2786     EL_EMERALD_RED,
2787     EL_EMERALD_PURPLE,
2788     EL_DIAMOND,
2789
2790     -1
2791   };
2792
2793   static int ep_switchable[] =
2794   {
2795     EL_ROBOT_WHEEL,
2796     EL_SP_TERMINAL,
2797     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2798     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2799     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2800     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2801     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2802     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2803     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2804     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2805     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2806     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2807     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2808     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2809     EL_SWITCHGATE_SWITCH_UP,
2810     EL_SWITCHGATE_SWITCH_DOWN,
2811     EL_LIGHT_SWITCH,
2812     EL_LIGHT_SWITCH_ACTIVE,
2813     EL_TIMEGATE_SWITCH,
2814     EL_BALLOON_SWITCH_LEFT,
2815     EL_BALLOON_SWITCH_RIGHT,
2816     EL_BALLOON_SWITCH_UP,
2817     EL_BALLOON_SWITCH_DOWN,
2818     EL_BALLOON_SWITCH_ANY,
2819     EL_BALLOON_SWITCH_NONE,
2820     EL_LAMP,
2821     EL_TIME_ORB_FULL,
2822     EL_EMC_MAGIC_BALL_SWITCH,
2823     EL_EMC_MAGIC_BALL_SWITCH_ACTIVE,
2824
2825     -1
2826   };
2827
2828   static int ep_bd_element[] =
2829   {
2830     EL_EMPTY,
2831     EL_SAND,
2832     EL_WALL_SLIPPERY,
2833     EL_BD_WALL,
2834     EL_ROCK,
2835     EL_BD_ROCK,
2836     EL_BD_DIAMOND,
2837     EL_BD_MAGIC_WALL,
2838     EL_EXIT_CLOSED,
2839     EL_EXIT_OPEN,
2840     EL_STEELWALL,
2841     EL_PLAYER_1,
2842     EL_PLAYER_2,
2843     EL_PLAYER_3,
2844     EL_PLAYER_4,
2845     EL_BD_FIREFLY,
2846     EL_BD_FIREFLY_1,
2847     EL_BD_FIREFLY_2,
2848     EL_BD_FIREFLY_3,
2849     EL_BD_FIREFLY_4,
2850     EL_BD_BUTTERFLY,
2851     EL_BD_BUTTERFLY_1,
2852     EL_BD_BUTTERFLY_2,
2853     EL_BD_BUTTERFLY_3,
2854     EL_BD_BUTTERFLY_4,
2855     EL_BD_AMOEBA,
2856     EL_CHAR_QUESTION,
2857     EL_UNKNOWN,
2858
2859     -1
2860   };
2861
2862   static int ep_sp_element[] =
2863   {
2864     /* should always be valid */
2865     EL_EMPTY,
2866
2867     /* standard classic Supaplex elements */
2868     EL_SP_EMPTY,
2869     EL_SP_ZONK,
2870     EL_SP_BASE,
2871     EL_SP_MURPHY,
2872     EL_SP_INFOTRON,
2873     EL_SP_CHIP_SINGLE,
2874     EL_SP_HARDWARE_GRAY,
2875     EL_SP_EXIT_CLOSED,
2876     EL_SP_EXIT_OPEN,
2877     EL_SP_DISK_ORANGE,
2878     EL_SP_PORT_RIGHT,
2879     EL_SP_PORT_DOWN,
2880     EL_SP_PORT_LEFT,
2881     EL_SP_PORT_UP,
2882     EL_SP_GRAVITY_PORT_RIGHT,
2883     EL_SP_GRAVITY_PORT_DOWN,
2884     EL_SP_GRAVITY_PORT_LEFT,
2885     EL_SP_GRAVITY_PORT_UP,
2886     EL_SP_SNIKSNAK,
2887     EL_SP_DISK_YELLOW,
2888     EL_SP_TERMINAL,
2889     EL_SP_DISK_RED,
2890     EL_SP_PORT_VERTICAL,
2891     EL_SP_PORT_HORIZONTAL,
2892     EL_SP_PORT_ANY,
2893     EL_SP_ELECTRON,
2894     EL_SP_BUGGY_BASE,
2895     EL_SP_CHIP_LEFT,
2896     EL_SP_CHIP_RIGHT,
2897     EL_SP_HARDWARE_BASE_1,
2898     EL_SP_HARDWARE_GREEN,
2899     EL_SP_HARDWARE_BLUE,
2900     EL_SP_HARDWARE_RED,
2901     EL_SP_HARDWARE_YELLOW,
2902     EL_SP_HARDWARE_BASE_2,
2903     EL_SP_HARDWARE_BASE_3,
2904     EL_SP_HARDWARE_BASE_4,
2905     EL_SP_HARDWARE_BASE_5,
2906     EL_SP_HARDWARE_BASE_6,
2907     EL_SP_CHIP_TOP,
2908     EL_SP_CHIP_BOTTOM,
2909
2910     /* additional elements that appeared in newer Supaplex levels */
2911     EL_INVISIBLE_WALL,
2912
2913     /* additional gravity port elements (not switching, but setting gravity) */
2914     EL_SP_GRAVITY_ON_PORT_LEFT,
2915     EL_SP_GRAVITY_ON_PORT_RIGHT,
2916     EL_SP_GRAVITY_ON_PORT_UP,
2917     EL_SP_GRAVITY_ON_PORT_DOWN,
2918     EL_SP_GRAVITY_OFF_PORT_LEFT,
2919     EL_SP_GRAVITY_OFF_PORT_RIGHT,
2920     EL_SP_GRAVITY_OFF_PORT_UP,
2921     EL_SP_GRAVITY_OFF_PORT_DOWN,
2922
2923     /* more than one Murphy in a level results in an inactive clone */
2924     EL_SP_MURPHY_CLONE,
2925
2926     /* runtime Supaplex elements */
2927     EL_SP_DISK_RED_ACTIVE,
2928     EL_SP_TERMINAL_ACTIVE,
2929     EL_SP_BUGGY_BASE_ACTIVATING,
2930     EL_SP_BUGGY_BASE_ACTIVE,
2931     EL_SP_EXIT_OPENING,
2932     EL_SP_EXIT_CLOSING,
2933
2934     -1
2935   };
2936
2937   static int ep_sb_element[] =
2938   {
2939     EL_EMPTY,
2940     EL_STEELWALL,
2941     EL_SOKOBAN_OBJECT,
2942     EL_SOKOBAN_FIELD_EMPTY,
2943     EL_SOKOBAN_FIELD_FULL,
2944     EL_SOKOBAN_FIELD_PLAYER,
2945     EL_PLAYER_1,
2946     EL_PLAYER_2,
2947     EL_PLAYER_3,
2948     EL_PLAYER_4,
2949     EL_INVISIBLE_STEELWALL,
2950
2951     -1
2952   };
2953
2954   static int ep_gem[] =
2955   {
2956     EL_BD_DIAMOND,
2957     EL_EMERALD,
2958     EL_EMERALD_YELLOW,
2959     EL_EMERALD_RED,
2960     EL_EMERALD_PURPLE,
2961     EL_DIAMOND,
2962
2963     -1
2964   };
2965
2966   static int ep_food_dark_yamyam[] =
2967   {
2968     EL_SAND,
2969     EL_BUG,
2970     EL_SPACESHIP,
2971     EL_BD_BUTTERFLY,
2972     EL_BD_FIREFLY,
2973     EL_YAMYAM,
2974     EL_ROBOT,
2975     EL_PACMAN,
2976     EL_AMOEBA_DROP,
2977     EL_AMOEBA_DEAD,
2978     EL_AMOEBA_WET,
2979     EL_AMOEBA_DRY,
2980     EL_AMOEBA_FULL,
2981     EL_BD_AMOEBA,
2982     EL_EMERALD,
2983     EL_BD_DIAMOND,
2984     EL_EMERALD_YELLOW,
2985     EL_EMERALD_RED,
2986     EL_EMERALD_PURPLE,
2987     EL_DIAMOND,
2988     EL_PEARL,
2989     EL_CRYSTAL,
2990
2991     -1
2992   };
2993
2994   static int ep_food_penguin[] =
2995   {
2996     EL_EMERALD,
2997     EL_BD_DIAMOND,
2998     EL_EMERALD_YELLOW,
2999     EL_EMERALD_RED,
3000     EL_EMERALD_PURPLE,
3001     EL_DIAMOND,
3002     EL_PEARL,
3003     EL_CRYSTAL,
3004
3005     -1
3006   };
3007
3008   static int ep_food_pig[] =
3009   {
3010     EL_EMERALD,
3011     EL_BD_DIAMOND,
3012     EL_EMERALD_YELLOW,
3013     EL_EMERALD_RED,
3014     EL_EMERALD_PURPLE,
3015     EL_DIAMOND,
3016
3017     -1
3018   };
3019
3020   static int ep_historic_wall[] =
3021   {
3022     EL_STEELWALL,
3023     EL_GATE_1,
3024     EL_GATE_2,
3025     EL_GATE_3,
3026     EL_GATE_4,
3027     EL_GATE_1_GRAY,
3028     EL_GATE_2_GRAY,
3029     EL_GATE_3_GRAY,
3030     EL_GATE_4_GRAY,
3031     EL_GATE_1_GRAY_ACTIVE,
3032     EL_GATE_2_GRAY_ACTIVE,
3033     EL_GATE_3_GRAY_ACTIVE,
3034     EL_GATE_4_GRAY_ACTIVE,
3035     EL_EM_GATE_1,
3036     EL_EM_GATE_2,
3037     EL_EM_GATE_3,
3038     EL_EM_GATE_4,
3039     EL_EM_GATE_1_GRAY,
3040     EL_EM_GATE_2_GRAY,
3041     EL_EM_GATE_3_GRAY,
3042     EL_EM_GATE_4_GRAY,
3043     EL_EM_GATE_1_GRAY_ACTIVE,
3044     EL_EM_GATE_2_GRAY_ACTIVE,
3045     EL_EM_GATE_3_GRAY_ACTIVE,
3046     EL_EM_GATE_4_GRAY_ACTIVE,
3047     EL_EXIT_CLOSED,
3048     EL_EXIT_OPENING,
3049     EL_EXIT_OPEN,
3050     EL_WALL,
3051     EL_WALL_SLIPPERY,
3052     EL_EXPANDABLE_WALL,
3053     EL_EXPANDABLE_WALL_HORIZONTAL,
3054     EL_EXPANDABLE_WALL_VERTICAL,
3055     EL_EXPANDABLE_WALL_ANY,
3056     EL_EXPANDABLE_WALL_GROWING,
3057     EL_BD_EXPANDABLE_WALL,
3058     EL_BD_WALL,
3059     EL_SP_CHIP_SINGLE,
3060     EL_SP_CHIP_LEFT,
3061     EL_SP_CHIP_RIGHT,
3062     EL_SP_CHIP_TOP,
3063     EL_SP_CHIP_BOTTOM,
3064     EL_SP_HARDWARE_GRAY,
3065     EL_SP_HARDWARE_GREEN,
3066     EL_SP_HARDWARE_BLUE,
3067     EL_SP_HARDWARE_RED,
3068     EL_SP_HARDWARE_YELLOW,
3069     EL_SP_HARDWARE_BASE_1,
3070     EL_SP_HARDWARE_BASE_2,
3071     EL_SP_HARDWARE_BASE_3,
3072     EL_SP_HARDWARE_BASE_4,
3073     EL_SP_HARDWARE_BASE_5,
3074     EL_SP_HARDWARE_BASE_6,
3075     EL_SP_TERMINAL,
3076     EL_SP_TERMINAL_ACTIVE,
3077     EL_SP_EXIT_CLOSED,
3078     EL_SP_EXIT_OPEN,
3079     EL_INVISIBLE_STEELWALL,
3080     EL_INVISIBLE_STEELWALL_ACTIVE,
3081     EL_INVISIBLE_WALL,
3082     EL_INVISIBLE_WALL_ACTIVE,
3083     EL_STEELWALL_SLIPPERY,
3084     EL_EMC_STEELWALL_1,
3085     EL_EMC_STEELWALL_2,
3086     EL_EMC_STEELWALL_3,
3087     EL_EMC_STEELWALL_4,
3088     EL_EMC_WALL_1,
3089     EL_EMC_WALL_2,
3090     EL_EMC_WALL_3,
3091     EL_EMC_WALL_4,
3092     EL_EMC_WALL_5,
3093     EL_EMC_WALL_6,
3094     EL_EMC_WALL_7,
3095     EL_EMC_WALL_8,
3096
3097     -1
3098   };
3099
3100   static int ep_historic_solid[] =
3101   {
3102     EL_WALL,
3103     EL_EXPANDABLE_WALL,
3104     EL_EXPANDABLE_WALL_HORIZONTAL,
3105     EL_EXPANDABLE_WALL_VERTICAL,
3106     EL_EXPANDABLE_WALL_ANY,
3107     EL_BD_EXPANDABLE_WALL,
3108     EL_BD_WALL,
3109     EL_WALL_SLIPPERY,
3110     EL_EXIT_CLOSED,
3111     EL_EXIT_OPENING,
3112     EL_EXIT_OPEN,
3113     EL_AMOEBA_DEAD,
3114     EL_AMOEBA_WET,
3115     EL_AMOEBA_DRY,
3116     EL_AMOEBA_FULL,
3117     EL_BD_AMOEBA,
3118     EL_QUICKSAND_EMPTY,
3119     EL_QUICKSAND_FULL,
3120     EL_QUICKSAND_FILLING,
3121     EL_QUICKSAND_EMPTYING,
3122     EL_MAGIC_WALL,
3123     EL_MAGIC_WALL_ACTIVE,
3124     EL_MAGIC_WALL_EMPTYING,
3125     EL_MAGIC_WALL_FILLING,
3126     EL_MAGIC_WALL_FULL,
3127     EL_MAGIC_WALL_DEAD,
3128     EL_BD_MAGIC_WALL,
3129     EL_BD_MAGIC_WALL_ACTIVE,
3130     EL_BD_MAGIC_WALL_EMPTYING,
3131     EL_BD_MAGIC_WALL_FULL,
3132     EL_BD_MAGIC_WALL_FILLING,
3133     EL_BD_MAGIC_WALL_DEAD,
3134     EL_GAME_OF_LIFE,
3135     EL_BIOMAZE,
3136     EL_SP_CHIP_SINGLE,
3137     EL_SP_CHIP_LEFT,
3138     EL_SP_CHIP_RIGHT,
3139     EL_SP_CHIP_TOP,
3140     EL_SP_CHIP_BOTTOM,
3141     EL_SP_TERMINAL,
3142     EL_SP_TERMINAL_ACTIVE,
3143     EL_SP_EXIT_CLOSED,
3144     EL_SP_EXIT_OPEN,
3145     EL_INVISIBLE_WALL,
3146     EL_INVISIBLE_WALL_ACTIVE,
3147     EL_SWITCHGATE_SWITCH_UP,
3148     EL_SWITCHGATE_SWITCH_DOWN,
3149     EL_TIMEGATE_SWITCH,
3150     EL_TIMEGATE_SWITCH_ACTIVE,
3151     EL_EMC_WALL_1,
3152     EL_EMC_WALL_2,
3153     EL_EMC_WALL_3,
3154     EL_EMC_WALL_4,
3155     EL_EMC_WALL_5,
3156     EL_EMC_WALL_6,
3157     EL_EMC_WALL_7,
3158     EL_EMC_WALL_8,
3159     EL_WALL_PEARL,
3160     EL_WALL_CRYSTAL,
3161
3162     /* the following elements are a direct copy of "indestructible" elements,
3163        except "EL_ACID", which is "indestructible", but not "solid"! */
3164 #if 0
3165     EL_ACID,
3166 #endif
3167     EL_STEELWALL,
3168     EL_ACID_POOL_TOPLEFT,
3169     EL_ACID_POOL_TOPRIGHT,
3170     EL_ACID_POOL_BOTTOMLEFT,
3171     EL_ACID_POOL_BOTTOM,
3172     EL_ACID_POOL_BOTTOMRIGHT,
3173     EL_SP_HARDWARE_GRAY,
3174     EL_SP_HARDWARE_GREEN,
3175     EL_SP_HARDWARE_BLUE,
3176     EL_SP_HARDWARE_RED,
3177     EL_SP_HARDWARE_YELLOW,
3178     EL_SP_HARDWARE_BASE_1,
3179     EL_SP_HARDWARE_BASE_2,
3180     EL_SP_HARDWARE_BASE_3,
3181     EL_SP_HARDWARE_BASE_4,
3182     EL_SP_HARDWARE_BASE_5,
3183     EL_SP_HARDWARE_BASE_6,
3184     EL_INVISIBLE_STEELWALL,
3185     EL_INVISIBLE_STEELWALL_ACTIVE,
3186     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3187     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3188     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3189     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3190     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3191     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3192     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3193     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3194     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3195     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3196     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3197     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3198     EL_LIGHT_SWITCH,
3199     EL_LIGHT_SWITCH_ACTIVE,
3200     EL_SIGN_EXCLAMATION,
3201     EL_SIGN_RADIOACTIVITY,
3202     EL_SIGN_STOP,
3203     EL_SIGN_WHEELCHAIR,
3204     EL_SIGN_PARKING,
3205     EL_SIGN_NO_ENTRY,
3206     EL_SIGN_UNUSED_1,
3207     EL_SIGN_GIVE_WAY,
3208     EL_SIGN_ENTRY_FORBIDDEN,
3209     EL_SIGN_EMERGENCY_EXIT,
3210     EL_SIGN_YIN_YANG,
3211     EL_SIGN_UNUSED_2,
3212     EL_SIGN_SPERMS,
3213     EL_SIGN_BULLET,
3214     EL_SIGN_HEART,
3215     EL_SIGN_CROSS,
3216     EL_SIGN_FRANKIE,
3217     EL_STEEL_EXIT_CLOSED,
3218     EL_STEEL_EXIT_OPEN,
3219     EL_STEELWALL_SLIPPERY,
3220     EL_EMC_STEELWALL_1,
3221     EL_EMC_STEELWALL_2,
3222     EL_EMC_STEELWALL_3,
3223     EL_EMC_STEELWALL_4,
3224     EL_CRYSTAL,
3225     EL_GATE_1,
3226     EL_GATE_2,
3227     EL_GATE_3,
3228     EL_GATE_4,
3229     EL_GATE_1_GRAY,
3230     EL_GATE_2_GRAY,
3231     EL_GATE_3_GRAY,
3232     EL_GATE_4_GRAY,
3233     EL_GATE_1_GRAY_ACTIVE,
3234     EL_GATE_2_GRAY_ACTIVE,
3235     EL_GATE_3_GRAY_ACTIVE,
3236     EL_GATE_4_GRAY_ACTIVE,
3237     EL_EM_GATE_1,
3238     EL_EM_GATE_2,
3239     EL_EM_GATE_3,
3240     EL_EM_GATE_4,
3241     EL_EM_GATE_1_GRAY,
3242     EL_EM_GATE_2_GRAY,
3243     EL_EM_GATE_3_GRAY,
3244     EL_EM_GATE_4_GRAY,
3245     EL_EM_GATE_1_GRAY_ACTIVE,
3246     EL_EM_GATE_2_GRAY_ACTIVE,
3247     EL_EM_GATE_3_GRAY_ACTIVE,
3248     EL_EM_GATE_4_GRAY_ACTIVE,
3249     EL_SWITCHGATE_OPEN,
3250     EL_SWITCHGATE_OPENING,
3251     EL_SWITCHGATE_CLOSED,
3252     EL_SWITCHGATE_CLOSING,
3253     EL_TIMEGATE_OPEN,
3254     EL_TIMEGATE_OPENING,
3255     EL_TIMEGATE_CLOSED,
3256     EL_TIMEGATE_CLOSING,
3257     EL_TUBE_ANY,
3258     EL_TUBE_VERTICAL,
3259     EL_TUBE_HORIZONTAL,
3260     EL_TUBE_VERTICAL_LEFT,
3261     EL_TUBE_VERTICAL_RIGHT,
3262     EL_TUBE_HORIZONTAL_UP,
3263     EL_TUBE_HORIZONTAL_DOWN,
3264     EL_TUBE_LEFT_UP,
3265     EL_TUBE_LEFT_DOWN,
3266     EL_TUBE_RIGHT_UP,
3267     EL_TUBE_RIGHT_DOWN,
3268
3269     -1
3270   };
3271
3272   static int ep_classic_enemy[] =
3273   {
3274     EL_BUG,
3275     EL_SPACESHIP,
3276     EL_BD_BUTTERFLY,
3277     EL_BD_FIREFLY,
3278
3279     EL_YAMYAM,
3280     EL_DARK_YAMYAM,
3281     EL_ROBOT,
3282     EL_PACMAN,
3283     EL_SP_SNIKSNAK,
3284     EL_SP_ELECTRON,
3285
3286     -1
3287   };
3288
3289   static int ep_belt[] =
3290   {
3291     EL_CONVEYOR_BELT_1_LEFT,
3292     EL_CONVEYOR_BELT_1_MIDDLE,
3293     EL_CONVEYOR_BELT_1_RIGHT,
3294     EL_CONVEYOR_BELT_2_LEFT,
3295     EL_CONVEYOR_BELT_2_MIDDLE,
3296     EL_CONVEYOR_BELT_2_RIGHT,
3297     EL_CONVEYOR_BELT_3_LEFT,
3298     EL_CONVEYOR_BELT_3_MIDDLE,
3299     EL_CONVEYOR_BELT_3_RIGHT,
3300     EL_CONVEYOR_BELT_4_LEFT,
3301     EL_CONVEYOR_BELT_4_MIDDLE,
3302     EL_CONVEYOR_BELT_4_RIGHT,
3303
3304     -1
3305   };
3306
3307   static int ep_belt_active[] =
3308   {
3309     EL_CONVEYOR_BELT_1_LEFT_ACTIVE,
3310     EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE,
3311     EL_CONVEYOR_BELT_1_RIGHT_ACTIVE,
3312     EL_CONVEYOR_BELT_2_LEFT_ACTIVE,
3313     EL_CONVEYOR_BELT_2_MIDDLE_ACTIVE,
3314     EL_CONVEYOR_BELT_2_RIGHT_ACTIVE,
3315     EL_CONVEYOR_BELT_3_LEFT_ACTIVE,
3316     EL_CONVEYOR_BELT_3_MIDDLE_ACTIVE,
3317     EL_CONVEYOR_BELT_3_RIGHT_ACTIVE,
3318     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
3319     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
3320     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
3321
3322     -1
3323   };
3324
3325   static int ep_belt_switch[] =
3326   {
3327     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3328     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3329     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3330     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3331     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3332     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3333     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3334     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3335     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3336     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3337     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3338     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3339
3340     -1
3341   };
3342
3343   static int ep_tube[] =
3344   {
3345     EL_TUBE_LEFT_UP,
3346     EL_TUBE_LEFT_DOWN,
3347     EL_TUBE_RIGHT_UP,
3348     EL_TUBE_RIGHT_DOWN,
3349     EL_TUBE_HORIZONTAL,
3350     EL_TUBE_HORIZONTAL_UP,
3351     EL_TUBE_HORIZONTAL_DOWN,
3352     EL_TUBE_VERTICAL,
3353     EL_TUBE_VERTICAL_LEFT,
3354     EL_TUBE_VERTICAL_RIGHT,
3355     EL_TUBE_ANY,
3356
3357     -1
3358   };
3359
3360   static int ep_keygate[] =
3361   {
3362     EL_GATE_1,
3363     EL_GATE_2,
3364     EL_GATE_3,
3365     EL_GATE_4,
3366     EL_GATE_1_GRAY,
3367     EL_GATE_2_GRAY,
3368     EL_GATE_3_GRAY,
3369     EL_GATE_4_GRAY,
3370     EL_GATE_1_GRAY_ACTIVE,
3371     EL_GATE_2_GRAY_ACTIVE,
3372     EL_GATE_3_GRAY_ACTIVE,
3373     EL_GATE_4_GRAY_ACTIVE,
3374     EL_EM_GATE_1,
3375     EL_EM_GATE_2,
3376     EL_EM_GATE_3,
3377     EL_EM_GATE_4,
3378     EL_EM_GATE_1_GRAY,
3379     EL_EM_GATE_2_GRAY,
3380     EL_EM_GATE_3_GRAY,
3381     EL_EM_GATE_4_GRAY,
3382     EL_EM_GATE_1_GRAY_ACTIVE,
3383     EL_EM_GATE_2_GRAY_ACTIVE,
3384     EL_EM_GATE_3_GRAY_ACTIVE,
3385     EL_EM_GATE_4_GRAY_ACTIVE,
3386     EL_EMC_GATE_5,
3387     EL_EMC_GATE_6,
3388     EL_EMC_GATE_7,
3389     EL_EMC_GATE_8,
3390     EL_EMC_GATE_5_GRAY,
3391     EL_EMC_GATE_6_GRAY,
3392     EL_EMC_GATE_7_GRAY,
3393     EL_EMC_GATE_8_GRAY,
3394     EL_EMC_GATE_5_GRAY_ACTIVE,
3395     EL_EMC_GATE_6_GRAY_ACTIVE,
3396     EL_EMC_GATE_7_GRAY_ACTIVE,
3397     EL_EMC_GATE_8_GRAY_ACTIVE,
3398
3399     -1
3400   };
3401
3402   static int ep_amoeboid[] =
3403   {
3404     EL_AMOEBA_DEAD,
3405     EL_AMOEBA_WET,
3406     EL_AMOEBA_DRY,
3407     EL_AMOEBA_FULL,
3408     EL_BD_AMOEBA,
3409     EL_EMC_DRIPPER,
3410
3411     -1
3412   };
3413
3414   static int ep_amoebalive[] =
3415   {
3416     EL_AMOEBA_WET,
3417     EL_AMOEBA_DRY,
3418     EL_AMOEBA_FULL,
3419     EL_BD_AMOEBA,
3420     EL_EMC_DRIPPER,
3421
3422     -1
3423   };
3424
3425   static int ep_has_editor_content[] =
3426   {
3427     EL_PLAYER_1,
3428     EL_PLAYER_2,
3429     EL_PLAYER_3,
3430     EL_PLAYER_4,
3431     EL_SP_MURPHY,
3432     EL_YAMYAM,
3433     EL_YAMYAM_LEFT,
3434     EL_YAMYAM_RIGHT,
3435     EL_YAMYAM_UP,
3436     EL_YAMYAM_DOWN,
3437     EL_AMOEBA_WET,
3438     EL_AMOEBA_DRY,
3439     EL_AMOEBA_FULL,
3440     EL_BD_AMOEBA,
3441     EL_EMC_MAGIC_BALL,
3442     EL_EMC_ANDROID,
3443
3444     -1
3445   };
3446
3447   static int ep_can_turn_each_move[] =
3448   {
3449     /* !!! do something with this one !!! */
3450     -1
3451   };
3452
3453   static int ep_can_grow[] =
3454   {
3455     EL_BD_AMOEBA,
3456     EL_AMOEBA_DROP,
3457     EL_AMOEBA_WET,
3458     EL_AMOEBA_DRY,
3459     EL_AMOEBA_FULL,
3460     EL_GAME_OF_LIFE,
3461     EL_BIOMAZE,
3462     EL_EMC_DRIPPER,
3463
3464     -1
3465   };
3466
3467   static int ep_active_bomb[] =
3468   {
3469     EL_DYNAMITE_ACTIVE,
3470     EL_EM_DYNAMITE_ACTIVE,
3471     EL_DYNABOMB_PLAYER_1_ACTIVE,
3472     EL_DYNABOMB_PLAYER_2_ACTIVE,
3473     EL_DYNABOMB_PLAYER_3_ACTIVE,
3474     EL_DYNABOMB_PLAYER_4_ACTIVE,
3475     EL_SP_DISK_RED_ACTIVE,
3476
3477     -1
3478   };
3479
3480   static int ep_inactive[] =
3481   {
3482     EL_EMPTY,
3483     EL_SAND,
3484     EL_WALL,
3485     EL_BD_WALL,
3486     EL_WALL_SLIPPERY,
3487     EL_STEELWALL,
3488     EL_AMOEBA_DEAD,
3489     EL_QUICKSAND_EMPTY,
3490     EL_STONEBLOCK,
3491     EL_ROBOT_WHEEL,
3492     EL_KEY_1,
3493     EL_KEY_2,
3494     EL_KEY_3,
3495     EL_KEY_4,
3496     EL_EM_KEY_1,
3497     EL_EM_KEY_2,
3498     EL_EM_KEY_3,
3499     EL_EM_KEY_4,
3500     EL_EMC_KEY_5,
3501     EL_EMC_KEY_6,
3502     EL_EMC_KEY_7,
3503     EL_EMC_KEY_8,
3504     EL_GATE_1,
3505     EL_GATE_2,
3506     EL_GATE_3,
3507     EL_GATE_4,
3508     EL_GATE_1_GRAY,
3509     EL_GATE_2_GRAY,
3510     EL_GATE_3_GRAY,
3511     EL_GATE_4_GRAY,
3512     EL_GATE_1_GRAY_ACTIVE,
3513     EL_GATE_2_GRAY_ACTIVE,
3514     EL_GATE_3_GRAY_ACTIVE,
3515     EL_GATE_4_GRAY_ACTIVE,
3516     EL_EM_GATE_1,
3517     EL_EM_GATE_2,
3518     EL_EM_GATE_3,
3519     EL_EM_GATE_4,
3520     EL_EM_GATE_1_GRAY,
3521     EL_EM_GATE_2_GRAY,
3522     EL_EM_GATE_3_GRAY,
3523     EL_EM_GATE_4_GRAY,
3524     EL_EM_GATE_1_GRAY_ACTIVE,
3525     EL_EM_GATE_2_GRAY_ACTIVE,
3526     EL_EM_GATE_3_GRAY_ACTIVE,
3527     EL_EM_GATE_4_GRAY_ACTIVE,
3528     EL_EMC_GATE_5,
3529     EL_EMC_GATE_6,
3530     EL_EMC_GATE_7,
3531     EL_EMC_GATE_8,
3532     EL_EMC_GATE_5_GRAY,
3533     EL_EMC_GATE_6_GRAY,
3534     EL_EMC_GATE_7_GRAY,
3535     EL_EMC_GATE_8_GRAY,
3536     EL_EMC_GATE_5_GRAY_ACTIVE,
3537     EL_EMC_GATE_6_GRAY_ACTIVE,
3538     EL_EMC_GATE_7_GRAY_ACTIVE,
3539     EL_EMC_GATE_8_GRAY_ACTIVE,
3540     EL_DYNAMITE,
3541     EL_EM_DYNAMITE,
3542     EL_INVISIBLE_STEELWALL,
3543     EL_INVISIBLE_WALL,
3544     EL_INVISIBLE_SAND,
3545     EL_LAMP,
3546     EL_LAMP_ACTIVE,
3547     EL_WALL_EMERALD,
3548     EL_WALL_DIAMOND,
3549     EL_WALL_BD_DIAMOND,
3550     EL_WALL_EMERALD_YELLOW,
3551     EL_DYNABOMB_INCREASE_NUMBER,
3552     EL_DYNABOMB_INCREASE_SIZE,
3553     EL_DYNABOMB_INCREASE_POWER,
3554 #if 0
3555     EL_SOKOBAN_OBJECT,
3556 #endif
3557     EL_SOKOBAN_FIELD_EMPTY,
3558     EL_SOKOBAN_FIELD_FULL,
3559     EL_WALL_EMERALD_RED,
3560     EL_WALL_EMERALD_PURPLE,
3561     EL_ACID_POOL_TOPLEFT,
3562     EL_ACID_POOL_TOPRIGHT,
3563     EL_ACID_POOL_BOTTOMLEFT,
3564     EL_ACID_POOL_BOTTOM,
3565     EL_ACID_POOL_BOTTOMRIGHT,
3566     EL_MAGIC_WALL,
3567     EL_MAGIC_WALL_DEAD,
3568     EL_BD_MAGIC_WALL,
3569     EL_BD_MAGIC_WALL_DEAD,
3570     EL_AMOEBA_TO_DIAMOND,
3571     EL_BLOCKED,
3572     EL_SP_EMPTY,
3573     EL_SP_BASE,
3574     EL_SP_PORT_RIGHT,
3575     EL_SP_PORT_DOWN,
3576     EL_SP_PORT_LEFT,
3577     EL_SP_PORT_UP,
3578     EL_SP_GRAVITY_PORT_RIGHT,
3579     EL_SP_GRAVITY_PORT_DOWN,
3580     EL_SP_GRAVITY_PORT_LEFT,
3581     EL_SP_GRAVITY_PORT_UP,
3582     EL_SP_PORT_HORIZONTAL,
3583     EL_SP_PORT_VERTICAL,
3584     EL_SP_PORT_ANY,
3585     EL_SP_DISK_RED,
3586 #if 0
3587     EL_SP_DISK_YELLOW,
3588 #endif
3589     EL_SP_CHIP_SINGLE,
3590     EL_SP_CHIP_LEFT,
3591     EL_SP_CHIP_RIGHT,
3592     EL_SP_CHIP_TOP,
3593     EL_SP_CHIP_BOTTOM,
3594     EL_SP_HARDWARE_GRAY,
3595     EL_SP_HARDWARE_GREEN,
3596     EL_SP_HARDWARE_BLUE,
3597     EL_SP_HARDWARE_RED,
3598     EL_SP_HARDWARE_YELLOW,
3599     EL_SP_HARDWARE_BASE_1,
3600     EL_SP_HARDWARE_BASE_2,
3601     EL_SP_HARDWARE_BASE_3,
3602     EL_SP_HARDWARE_BASE_4,
3603     EL_SP_HARDWARE_BASE_5,
3604     EL_SP_HARDWARE_BASE_6,
3605     EL_SP_GRAVITY_ON_PORT_LEFT,
3606     EL_SP_GRAVITY_ON_PORT_RIGHT,
3607     EL_SP_GRAVITY_ON_PORT_UP,
3608     EL_SP_GRAVITY_ON_PORT_DOWN,
3609     EL_SP_GRAVITY_OFF_PORT_LEFT,
3610     EL_SP_GRAVITY_OFF_PORT_RIGHT,
3611     EL_SP_GRAVITY_OFF_PORT_UP,
3612     EL_SP_GRAVITY_OFF_PORT_DOWN,
3613     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3614     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3615     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3616     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3617     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3618     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3619     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3620     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3621     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3622     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3623     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3624     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3625     EL_SIGN_EXCLAMATION,
3626     EL_SIGN_RADIOACTIVITY,
3627     EL_SIGN_STOP,
3628     EL_SIGN_WHEELCHAIR,
3629     EL_SIGN_PARKING,
3630     EL_SIGN_NO_ENTRY,
3631     EL_SIGN_UNUSED_1,
3632     EL_SIGN_GIVE_WAY,
3633     EL_SIGN_ENTRY_FORBIDDEN,
3634     EL_SIGN_EMERGENCY_EXIT,
3635     EL_SIGN_YIN_YANG,
3636     EL_SIGN_UNUSED_2,
3637     EL_SIGN_SPERMS,
3638     EL_SIGN_BULLET,
3639     EL_SIGN_HEART,
3640     EL_SIGN_CROSS,
3641     EL_SIGN_FRANKIE,
3642     EL_STEELWALL_SLIPPERY,
3643     EL_EMC_STEELWALL_1,
3644     EL_EMC_STEELWALL_2,
3645     EL_EMC_STEELWALL_3,
3646     EL_EMC_STEELWALL_4,
3647     EL_EMC_WALL_SLIPPERY_1,
3648     EL_EMC_WALL_SLIPPERY_2,
3649     EL_EMC_WALL_SLIPPERY_3,
3650     EL_EMC_WALL_SLIPPERY_4,
3651     EL_EMC_WALL_1,
3652     EL_EMC_WALL_2,
3653     EL_EMC_WALL_3,
3654     EL_EMC_WALL_4,
3655     EL_EMC_WALL_5,
3656     EL_EMC_WALL_6,
3657     EL_EMC_WALL_7,
3658     EL_EMC_WALL_8,
3659     EL_EMC_WALL_9,
3660     EL_EMC_WALL_10,
3661     EL_EMC_WALL_11,
3662     EL_EMC_WALL_12,
3663     EL_EMC_WALL_13,
3664     EL_EMC_WALL_14,
3665     EL_EMC_WALL_15,
3666     EL_EMC_WALL_16,
3667
3668     -1
3669   };
3670
3671   static int ep_em_slippery_wall[] =
3672   {
3673     -1
3674   };
3675
3676   static int ep_gfx_crumbled[] =
3677   {
3678     EL_SAND,
3679     EL_LANDMINE,
3680     EL_TRAP,
3681     EL_TRAP_ACTIVE,
3682
3683     -1
3684   };
3685
3686   static int ep_editor_cascade_active[] =
3687   {
3688     EL_INTERNAL_CASCADE_BD_ACTIVE,
3689     EL_INTERNAL_CASCADE_EM_ACTIVE,
3690     EL_INTERNAL_CASCADE_EMC_ACTIVE,
3691     EL_INTERNAL_CASCADE_RND_ACTIVE,
3692     EL_INTERNAL_CASCADE_SB_ACTIVE,
3693     EL_INTERNAL_CASCADE_SP_ACTIVE,
3694     EL_INTERNAL_CASCADE_DC_ACTIVE,
3695     EL_INTERNAL_CASCADE_DX_ACTIVE,
3696     EL_INTERNAL_CASCADE_CHARS_ACTIVE,
3697     EL_INTERNAL_CASCADE_STEELCHARS_ACTIVE,
3698     EL_INTERNAL_CASCADE_CE_ACTIVE,
3699     EL_INTERNAL_CASCADE_GE_ACTIVE,
3700     EL_INTERNAL_CASCADE_REF_ACTIVE,
3701     EL_INTERNAL_CASCADE_USER_ACTIVE,
3702     EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
3703
3704     -1
3705   };
3706
3707   static int ep_editor_cascade_inactive[] =
3708   {
3709     EL_INTERNAL_CASCADE_BD,
3710     EL_INTERNAL_CASCADE_EM,
3711     EL_INTERNAL_CASCADE_EMC,
3712     EL_INTERNAL_CASCADE_RND,
3713     EL_INTERNAL_CASCADE_SB,
3714     EL_INTERNAL_CASCADE_SP,
3715     EL_INTERNAL_CASCADE_DC,
3716     EL_INTERNAL_CASCADE_DX,
3717     EL_INTERNAL_CASCADE_CHARS,
3718     EL_INTERNAL_CASCADE_STEELCHARS,
3719     EL_INTERNAL_CASCADE_CE,
3720     EL_INTERNAL_CASCADE_GE,
3721     EL_INTERNAL_CASCADE_REF,
3722     EL_INTERNAL_CASCADE_USER,
3723     EL_INTERNAL_CASCADE_DYNAMIC,
3724
3725     -1
3726   };
3727
3728   static int ep_obsolete[] =
3729   {
3730     EL_PLAYER_OBSOLETE,
3731     EL_KEY_OBSOLETE,
3732     EL_EM_KEY_1_FILE_OBSOLETE,
3733     EL_EM_KEY_2_FILE_OBSOLETE,
3734     EL_EM_KEY_3_FILE_OBSOLETE,
3735     EL_EM_KEY_4_FILE_OBSOLETE,
3736     EL_ENVELOPE_OBSOLETE,
3737
3738     -1
3739   };
3740
3741   static struct
3742   {
3743     int *elements;
3744     int property;
3745   } element_properties[] =
3746   {
3747     { ep_diggable,                      EP_DIGGABLE                     },
3748     { ep_collectible_only,              EP_COLLECTIBLE_ONLY             },
3749     { ep_dont_run_into,                 EP_DONT_RUN_INTO                },
3750     { ep_dont_collide_with,             EP_DONT_COLLIDE_WITH            },
3751     { ep_dont_touch,                    EP_DONT_TOUCH                   },
3752     { ep_indestructible,                EP_INDESTRUCTIBLE               },
3753     { ep_slippery,                      EP_SLIPPERY                     },
3754     { ep_can_change,                    EP_CAN_CHANGE                   },
3755     { ep_can_move,                      EP_CAN_MOVE                     },
3756     { ep_can_fall,                      EP_CAN_FALL                     },
3757     { ep_can_smash_player,              EP_CAN_SMASH_PLAYER             },
3758     { ep_can_smash_enemies,             EP_CAN_SMASH_ENEMIES            },
3759     { ep_can_smash_everything,          EP_CAN_SMASH_EVERYTHING         },
3760     { ep_explodes_by_fire,              EP_EXPLODES_BY_FIRE             },
3761     { ep_explodes_smashed,              EP_EXPLODES_SMASHED             },
3762     { ep_explodes_impact,               EP_EXPLODES_IMPACT              },
3763     { ep_walkable_over,                 EP_WALKABLE_OVER                },
3764     { ep_walkable_inside,               EP_WALKABLE_INSIDE              },
3765     { ep_walkable_under,                EP_WALKABLE_UNDER               },
3766     { ep_passable_over,                 EP_PASSABLE_OVER                },
3767     { ep_passable_inside,               EP_PASSABLE_INSIDE              },
3768     { ep_passable_under,                EP_PASSABLE_UNDER               },
3769     { ep_droppable,                     EP_DROPPABLE                    },
3770     { ep_explodes_1x1_old,              EP_EXPLODES_1X1_OLD             },
3771     { ep_pushable,                      EP_PUSHABLE                     },
3772     { ep_explodes_cross_old,            EP_EXPLODES_CROSS_OLD           },
3773     { ep_protected,                     EP_PROTECTED                    },
3774     { ep_throwable,                     EP_THROWABLE                    },
3775     { ep_can_explode,                   EP_CAN_EXPLODE                  },
3776     { ep_gravity_reachable,             EP_GRAVITY_REACHABLE            },
3777
3778     { ep_player,                        EP_PLAYER                       },
3779     { ep_can_pass_magic_wall,           EP_CAN_PASS_MAGIC_WALL          },
3780     { ep_switchable,                    EP_SWITCHABLE                   },
3781     { ep_bd_element,                    EP_BD_ELEMENT                   },
3782     { ep_sp_element,                    EP_SP_ELEMENT                   },
3783     { ep_sb_element,                    EP_SB_ELEMENT                   },
3784     { ep_gem,                           EP_GEM                          },
3785     { ep_food_dark_yamyam,              EP_FOOD_DARK_YAMYAM             },
3786     { ep_food_penguin,                  EP_FOOD_PENGUIN                 },
3787     { ep_food_pig,                      EP_FOOD_PIG                     },
3788     { ep_historic_wall,                 EP_HISTORIC_WALL                },
3789     { ep_historic_solid,                EP_HISTORIC_SOLID               },
3790     { ep_classic_enemy,                 EP_CLASSIC_ENEMY                },
3791     { ep_belt,                          EP_BELT                         },
3792     { ep_belt_active,                   EP_BELT_ACTIVE                  },
3793     { ep_belt_switch,                   EP_BELT_SWITCH                  },
3794     { ep_tube,                          EP_TUBE                         },
3795     { ep_keygate,                       EP_KEYGATE                      },
3796     { ep_amoeboid,                      EP_AMOEBOID                     },
3797     { ep_amoebalive,                    EP_AMOEBALIVE                   },
3798     { ep_has_editor_content,            EP_HAS_EDITOR_CONTENT           },
3799     { ep_can_turn_each_move,            EP_CAN_TURN_EACH_MOVE           },
3800     { ep_can_grow,                      EP_CAN_GROW                     },
3801     { ep_active_bomb,                   EP_ACTIVE_BOMB                  },
3802     { ep_inactive,                      EP_INACTIVE                     },
3803
3804     { ep_em_slippery_wall,              EP_EM_SLIPPERY_WALL             },
3805
3806     { ep_gfx_crumbled,                  EP_GFX_CRUMBLED                 },
3807
3808     { ep_editor_cascade_active,         EP_EDITOR_CASCADE_ACTIVE        },
3809     { ep_editor_cascade_inactive,       EP_EDITOR_CASCADE_INACTIVE      },
3810
3811     { ep_obsolete,                      EP_OBSOLETE                     },
3812
3813     { NULL,                             -1                              }
3814   };
3815
3816   int i, j, k;
3817
3818   /* always start with reliable default values (element has no properties) */
3819   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3820     for (j = 0; j < NUM_ELEMENT_PROPERTIES; j++)
3821       SET_PROPERTY(i, j, FALSE);
3822
3823   /* set all base element properties from above array definitions */
3824   for (i = 0; element_properties[i].elements != NULL; i++)
3825     for (j = 0; (element_properties[i].elements)[j] != -1; j++)
3826       SET_PROPERTY((element_properties[i].elements)[j],
3827                    element_properties[i].property, TRUE);
3828
3829   /* copy properties to some elements that are only stored in level file */
3830   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
3831     for (j = 0; copy_properties[j][0] != -1; j++)
3832       if (HAS_PROPERTY(copy_properties[j][0], i))
3833         for (k = 1; k <= 4; k++)
3834           SET_PROPERTY(copy_properties[j][k], i, TRUE);
3835 }
3836
3837 void InitElementPropertiesEngine(int engine_version)
3838 {
3839   static int no_wall_properties[] =
3840   {
3841     EP_DIGGABLE,
3842     EP_COLLECTIBLE_ONLY,
3843     EP_DONT_RUN_INTO,
3844     EP_DONT_COLLIDE_WITH,
3845     EP_CAN_MOVE,
3846     EP_CAN_FALL,
3847     EP_CAN_SMASH_PLAYER,
3848     EP_CAN_SMASH_ENEMIES,
3849     EP_CAN_SMASH_EVERYTHING,
3850     EP_PUSHABLE,
3851
3852     EP_PLAYER,
3853     EP_GEM,
3854     EP_FOOD_DARK_YAMYAM,
3855     EP_FOOD_PENGUIN,
3856     EP_BELT,
3857     EP_BELT_ACTIVE,
3858     EP_TUBE,
3859     EP_AMOEBOID,
3860     EP_AMOEBALIVE,
3861     EP_ACTIVE_BOMB,
3862
3863     EP_ACCESSIBLE,
3864
3865     -1
3866   };
3867
3868   int i, j;
3869
3870   /* important: after initialization in InitElementPropertiesStatic(), the
3871      elements are not again initialized to a default value; therefore all
3872      changes have to make sure that they leave the element with a defined
3873      property (which means that conditional property changes must be set to
3874      a reliable default value before) */
3875
3876   /* ---------- recursively resolve group elements ------------------------- */
3877
3878   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3879     for (j = 0; j < NUM_GROUP_ELEMENTS; j++)
3880       element_info[i].in_group[j] = FALSE;
3881
3882   for (i = 0; i < NUM_GROUP_ELEMENTS; i++)
3883     resolve_group_element(EL_GROUP_START + i, 0);
3884
3885   /* set all special, combined or engine dependent element properties */
3886   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3887   {
3888     /* ---------- INACTIVE ------------------------------------------------- */
3889     SET_PROPERTY(i, EP_INACTIVE, ((i >= EL_CHAR_START &&
3890                                    i <= EL_CHAR_END) ||
3891                                   (i >= EL_STEELCHAR_START &&
3892                                    i <= EL_STEELCHAR_END)));
3893
3894     /* ---------- INDESTRUCTIBLE -------------------------------------------- */
3895     if (i >= EL_STEELCHAR_START && i <= EL_STEELCHAR_END)
3896       SET_PROPERTY(i, EP_INDESTRUCTIBLE, TRUE);
3897
3898     /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
3899     SET_PROPERTY(i, EP_WALKABLE, (IS_WALKABLE_OVER(i) ||
3900                                   IS_WALKABLE_INSIDE(i) ||
3901                                   IS_WALKABLE_UNDER(i)));
3902
3903     SET_PROPERTY(i, EP_PASSABLE, (IS_PASSABLE_OVER(i) ||
3904                                   IS_PASSABLE_INSIDE(i) ||
3905                                   IS_PASSABLE_UNDER(i)));
3906
3907     SET_PROPERTY(i, EP_ACCESSIBLE_OVER, (IS_WALKABLE_OVER(i) ||
3908                                          IS_PASSABLE_OVER(i)));
3909
3910     SET_PROPERTY(i, EP_ACCESSIBLE_INSIDE, (IS_WALKABLE_INSIDE(i) ||
3911                                            IS_PASSABLE_INSIDE(i)));
3912
3913     SET_PROPERTY(i, EP_ACCESSIBLE_UNDER, (IS_WALKABLE_UNDER(i) ||
3914                                           IS_PASSABLE_UNDER(i)));
3915
3916     SET_PROPERTY(i, EP_ACCESSIBLE, (IS_WALKABLE(i) ||
3917                                     IS_PASSABLE(i)));
3918
3919     /* ---------- COLLECTIBLE ---------------------------------------------- */
3920     SET_PROPERTY(i, EP_COLLECTIBLE, (IS_COLLECTIBLE_ONLY(i) ||
3921                                      IS_DROPPABLE(i) ||
3922                                      IS_THROWABLE(i)));
3923
3924     /* ---------- SNAPPABLE ------------------------------------------------ */
3925     SET_PROPERTY(i, EP_SNAPPABLE, (IS_DIGGABLE(i) ||
3926                                    IS_COLLECTIBLE(i) ||
3927                                    IS_SWITCHABLE(i) ||
3928                                    i == EL_BD_ROCK));
3929
3930     /* ---------- WALL ----------------------------------------------------- */
3931     SET_PROPERTY(i, EP_WALL, TRUE);     /* default: element is wall */
3932
3933     for (j = 0; no_wall_properties[j] != -1; j++)
3934       if (HAS_PROPERTY(i, no_wall_properties[j]) ||
3935           i >= EL_FIRST_RUNTIME_UNREAL)
3936         SET_PROPERTY(i, EP_WALL, FALSE);
3937
3938     if (IS_HISTORIC_WALL(i))
3939       SET_PROPERTY(i, EP_WALL, TRUE);
3940
3941     /* ---------- SOLID_FOR_PUSHING ---------------------------------------- */
3942     if (engine_version < VERSION_IDENT(2,2,0,0))
3943       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, IS_HISTORIC_SOLID(i));
3944     else
3945       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, (!IS_WALKABLE(i) &&
3946                                              !IS_DIGGABLE(i) &&
3947                                              !IS_COLLECTIBLE(i)));
3948
3949     /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
3950     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
3951       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
3952     else
3953       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, (IS_CUSTOM_ELEMENT(i) &&
3954                                             IS_INDESTRUCTIBLE(i)));
3955
3956     /* ---------- EXPLOSION_PROOF ------------------------------------------ */
3957     if (i == EL_FLAMES)
3958       SET_PROPERTY(i, EP_EXPLOSION_PROOF, TRUE);
3959     else if (engine_version < VERSION_IDENT(2,2,0,0))
3960       SET_PROPERTY(i, EP_EXPLOSION_PROOF, IS_INDESTRUCTIBLE(i));
3961     else
3962       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3963                                            (!IS_WALKABLE(i) ||
3964                                             IS_PROTECTED(i))));
3965
3966     if (IS_CUSTOM_ELEMENT(i))
3967     {
3968       /* these are additional properties which are initially false when set */
3969
3970       /* ---------- DONT_COLLIDE_WITH / DONT_RUN_INTO ---------------------- */
3971       if (DONT_TOUCH(i))
3972         SET_PROPERTY(i, EP_DONT_COLLIDE_WITH, TRUE);
3973       if (DONT_COLLIDE_WITH(i))
3974         SET_PROPERTY(i, EP_DONT_RUN_INTO, TRUE);
3975
3976       /* ---------- CAN_SMASH_ENEMIES / CAN_SMASH_PLAYER ------------------- */
3977       if (CAN_SMASH_EVERYTHING(i))
3978         SET_PROPERTY(i, EP_CAN_SMASH_ENEMIES, TRUE);
3979       if (CAN_SMASH_ENEMIES(i))
3980         SET_PROPERTY(i, EP_CAN_SMASH_PLAYER, TRUE);
3981     }
3982
3983     /* ---------- CAN_SMASH ------------------------------------------------ */
3984     SET_PROPERTY(i, EP_CAN_SMASH, (CAN_SMASH_PLAYER(i) ||
3985                                    CAN_SMASH_ENEMIES(i) ||
3986                                    CAN_SMASH_EVERYTHING(i)));
3987
3988     /* ---------- CAN_EXPLODE_BY_FIRE -------------------------------------- */
3989     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_FIRE, (CAN_EXPLODE(i) &&
3990                                              EXPLODES_BY_FIRE(i)));
3991
3992     /* ---------- CAN_EXPLODE_SMASHED -------------------------------------- */
3993     SET_PROPERTY(i, EP_CAN_EXPLODE_SMASHED, (CAN_EXPLODE(i) &&
3994                                              EXPLODES_SMASHED(i)));
3995
3996     /* ---------- CAN_EXPLODE_IMPACT --------------------------------------- */
3997     SET_PROPERTY(i, EP_CAN_EXPLODE_IMPACT, (CAN_EXPLODE(i) &&
3998                                             EXPLODES_IMPACT(i)));
3999
4000     /* ---------- CAN_EXPLODE_BY_DRAGONFIRE -------------------------------- */
4001     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_DRAGONFIRE, CAN_EXPLODE_BY_FIRE(i));
4002
4003     /* ---------- CAN_EXPLODE_BY_EXPLOSION --------------------------------- */
4004     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_EXPLOSION, (CAN_EXPLODE_BY_FIRE(i) ||
4005                                                   i == EL_BLACK_ORB));
4006
4007     /* ---------- COULD_MOVE_INTO_ACID ------------------------------------- */
4008     SET_PROPERTY(i, EP_COULD_MOVE_INTO_ACID, (ELEM_IS_PLAYER(i) ||
4009                                               CAN_MOVE(i) ||
4010                                               IS_CUSTOM_ELEMENT(i)));
4011
4012     /* ---------- MAYBE_DONT_COLLIDE_WITH ---------------------------------- */
4013     SET_PROPERTY(i, EP_MAYBE_DONT_COLLIDE_WITH, (i == EL_SP_SNIKSNAK ||
4014                                                  i == EL_SP_ELECTRON));
4015
4016     /* ---------- CAN_MOVE_INTO_ACID --------------------------------------- */
4017     if (COULD_MOVE_INTO_ACID(i) && !IS_CUSTOM_ELEMENT(i))
4018       SET_PROPERTY(i, EP_CAN_MOVE_INTO_ACID,
4019                    getMoveIntoAcidProperty(&level, i));
4020
4021     /* ---------- DONT_COLLIDE_WITH ---------------------------------------- */
4022     if (MAYBE_DONT_COLLIDE_WITH(i))
4023       SET_PROPERTY(i, EP_DONT_COLLIDE_WITH,
4024                    getDontCollideWithProperty(&level, i));
4025
4026     /* ---------- SP_PORT -------------------------------------------------- */
4027     SET_PROPERTY(i, EP_SP_PORT, (IS_SP_ELEMENT(i) &&
4028                                  IS_PASSABLE_INSIDE(i)));
4029
4030     /* ---------- CAN_BE_CLONED_BY_ANDROID --------------------------------- */
4031     for (j = 0; j < level.num_android_clone_elements; j++)
4032       SET_PROPERTY(i, EP_CAN_BE_CLONED_BY_ANDROID,
4033                    (i != EL_EMPTY &&
4034                     IS_EQUAL_OR_IN_GROUP(i, level.android_clone_element[j])));
4035
4036     /* ---------- CAN_CHANGE ----------------------------------------------- */
4037     SET_PROPERTY(i, EP_CAN_CHANGE, FALSE);      /* default: cannot change */
4038     for (j = 0; j < element_info[i].num_change_pages; j++)
4039       if (element_info[i].change_page[j].can_change)
4040         SET_PROPERTY(i, EP_CAN_CHANGE, TRUE);
4041
4042     /* ---------- HAS_ACTION ----------------------------------------------- */
4043     SET_PROPERTY(i, EP_HAS_ACTION, FALSE);      /* default: has no action */
4044     for (j = 0; j < element_info[i].num_change_pages; j++)
4045       if (element_info[i].change_page[j].has_action)
4046         SET_PROPERTY(i, EP_HAS_ACTION, TRUE);
4047
4048     /* ---------- CAN_CHANGE_OR_HAS_ACTION --------------------------------- */
4049     SET_PROPERTY(i, EP_CAN_CHANGE_OR_HAS_ACTION, (CAN_CHANGE(i) ||
4050                                                   HAS_ACTION(i)));
4051
4052     /* ---------- GFX_CRUMBLED --------------------------------------------- */
4053 #if 1
4054     SET_PROPERTY(i, EP_GFX_CRUMBLED,
4055                  element_info[i].crumbled[ACTION_DEFAULT] !=
4056                  element_info[i].graphic[ACTION_DEFAULT]);
4057 #else
4058     /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
4059     SET_PROPERTY(i, EP_GFX_CRUMBLED,
4060                  element_info[i].crumbled[ACTION_DEFAULT] != IMG_EMPTY);
4061 #endif
4062
4063     /* ---------- EDITOR_CASCADE ------------------------------------------- */
4064     SET_PROPERTY(i, EP_EDITOR_CASCADE, (IS_EDITOR_CASCADE_ACTIVE(i) ||
4065                                         IS_EDITOR_CASCADE_INACTIVE(i)));
4066   }
4067
4068   /* dynamically adjust element properties according to game engine version */
4069   {
4070     static int ep_em_slippery_wall[] =
4071     {
4072       EL_STEELWALL,
4073       EL_WALL,
4074       EL_EXPANDABLE_WALL,
4075       EL_EXPANDABLE_WALL_HORIZONTAL,
4076       EL_EXPANDABLE_WALL_VERTICAL,
4077       EL_EXPANDABLE_WALL_ANY,
4078       -1
4079     };
4080
4081     /* special EM style gems behaviour */
4082     for (i = 0; ep_em_slippery_wall[i] != -1; i++)
4083       SET_PROPERTY(ep_em_slippery_wall[i], EP_EM_SLIPPERY_WALL,
4084                    level.em_slippery_gems);
4085
4086     /* "EL_EXPANDABLE_WALL_GROWING" wasn't slippery for EM gems in 2.0.1 */
4087     SET_PROPERTY(EL_EXPANDABLE_WALL_GROWING, EP_EM_SLIPPERY_WALL,
4088                  (level.em_slippery_gems &&
4089                   engine_version > VERSION_IDENT(2,0,1,0)));
4090   }
4091
4092   /* this is needed because some graphics depend on element properties */
4093   if (game_status == GAME_MODE_PLAYING)
4094     InitElementGraphicInfo();
4095 }
4096
4097 void InitElementPropertiesAfterLoading(int engine_version)
4098 {
4099   int i;
4100
4101   /* set some other uninitialized values of custom elements in older levels */
4102   if (engine_version < VERSION_IDENT(3,1,0,0))
4103   {
4104     for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
4105     {
4106       int element = EL_CUSTOM_START + i;
4107
4108       element_info[element].access_direction = MV_ALL_DIRECTIONS;
4109
4110       element_info[element].explosion_delay = 17;
4111       element_info[element].ignition_delay = 8;
4112     }
4113   }
4114 }
4115
4116 static void InitGlobal()
4117 {
4118   int i;
4119
4120   for (i = 0; i < MAX_NUM_ELEMENTS + 1; i++)
4121   {
4122     /* check if element_name_info entry defined for each element in "main.h" */
4123     if (i < MAX_NUM_ELEMENTS && element_name_info[i].token_name == NULL)
4124       Error(ERR_EXIT, "undefined 'element_name_info' entry for element %d", i);
4125
4126     element_info[i].token_name = element_name_info[i].token_name;
4127     element_info[i].class_name = element_name_info[i].class_name;
4128     element_info[i].editor_description=element_name_info[i].editor_description;
4129
4130 #if 0
4131     printf("%04d: %s\n", i, element_name_info[i].token_name);
4132 #endif
4133   }
4134
4135   global.autoplay_leveldir = NULL;
4136   global.convert_leveldir = NULL;
4137
4138   global.frames_per_second = 0;
4139   global.fps_slowdown = FALSE;
4140   global.fps_slowdown_factor = 1;
4141 }
4142
4143 void Execute_Command(char *command)
4144 {
4145   int i;
4146
4147   if (strEqual(command, "print graphicsinfo.conf"))
4148   {
4149     printf("# You can configure additional/alternative image files here.\n");
4150     printf("# (The entries below are default and therefore commented out.)\n");
4151     printf("\n");
4152     printf("%s\n", getFormattedSetupEntry("name", "Classic Graphics"));
4153     printf("\n");
4154     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
4155     printf("\n");
4156
4157     for (i = 0; image_config[i].token != NULL; i++)
4158       printf("# %s\n", getFormattedSetupEntry(image_config[i].token,
4159                                               image_config[i].value));
4160
4161     exit(0);
4162   }
4163   else if (strEqual(command, "print soundsinfo.conf"))
4164   {
4165     printf("# You can configure additional/alternative sound files here.\n");
4166     printf("# (The entries below are default and therefore commented out.)\n");
4167     printf("\n");
4168     printf("%s\n", getFormattedSetupEntry("name", "Classic Sounds"));
4169     printf("\n");
4170     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
4171     printf("\n");
4172
4173     for (i = 0; sound_config[i].token != NULL; i++)
4174       printf("# %s\n", getFormattedSetupEntry(sound_config[i].token,
4175                                               sound_config[i].value));
4176
4177     exit(0);
4178   }
4179   else if (strEqual(command, "print musicinfo.conf"))
4180   {
4181     printf("# You can configure additional/alternative music files here.\n");
4182     printf("# (The entries below are default and therefore commented out.)\n");
4183     printf("\n");
4184     printf("%s\n", getFormattedSetupEntry("name", "Classic Music"));
4185     printf("\n");
4186     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
4187     printf("\n");
4188
4189     for (i = 0; music_config[i].token != NULL; i++)
4190       printf("# %s\n", getFormattedSetupEntry(music_config[i].token,
4191                                               music_config[i].value));
4192
4193     exit(0);
4194   }
4195   else if (strEqual(command, "print editorsetup.conf"))
4196   {
4197     printf("# You can configure your personal editor element list here.\n");
4198     printf("# (The entries below are default and therefore commented out.)\n");
4199     printf("\n");
4200
4201     /* this is needed to be able to check element list for cascade elements */
4202     InitElementPropertiesStatic();
4203     InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
4204
4205     PrintEditorElementList();
4206
4207     exit(0);
4208   }
4209   else if (strEqual(command, "print helpanim.conf"))
4210   {
4211     printf("# You can configure different element help animations here.\n");
4212     printf("# (The entries below are default and therefore commented out.)\n");
4213     printf("\n");
4214
4215     for (i = 0; helpanim_config[i].token != NULL; i++)
4216     {
4217       printf("# %s\n", getFormattedSetupEntry(helpanim_config[i].token,
4218                                               helpanim_config[i].value));
4219
4220       if (strEqual(helpanim_config[i].token, "end"))
4221         printf("#\n");
4222     }
4223
4224     exit(0);
4225   }
4226   else if (strEqual(command, "print helptext.conf"))
4227   {
4228     printf("# You can configure different element help text here.\n");
4229     printf("# (The entries below are default and therefore commented out.)\n");
4230     printf("\n");
4231
4232     for (i = 0; helptext_config[i].token != NULL; i++)
4233       printf("# %s\n", getFormattedSetupEntry(helptext_config[i].token,
4234                                               helptext_config[i].value));
4235
4236     exit(0);
4237   }
4238   else if (strncmp(command, "dump level ", 11) == 0)
4239   {
4240     char *filename = &command[11];
4241
4242     if (!fileExists(filename))
4243       Error(ERR_EXIT, "cannot open file '%s'", filename);
4244
4245     LoadLevelFromFilename(&level, filename);
4246     DumpLevel(&level);
4247
4248     exit(0);
4249   }
4250   else if (strncmp(command, "dump tape ", 10) == 0)
4251   {
4252     char *filename = &command[10];
4253
4254     if (!fileExists(filename))
4255       Error(ERR_EXIT, "cannot open file '%s'", filename);
4256
4257     LoadTapeFromFilename(filename);
4258     DumpTape(&tape);
4259
4260     exit(0);
4261   }
4262   else if (strncmp(command, "autoplay ", 9) == 0)
4263   {
4264     char *str_ptr = getStringCopy(&command[9]); /* read command parameters */
4265
4266     while (*str_ptr != '\0')                    /* continue parsing string */
4267     {
4268       /* cut leading whitespace from string, replace it by string terminator */
4269       while (*str_ptr == ' ' || *str_ptr == '\t')
4270         *str_ptr++ = '\0';
4271
4272       if (*str_ptr == '\0')                     /* end of string reached */
4273         break;
4274
4275       if (global.autoplay_leveldir == NULL)     /* read level set string */
4276       {
4277         global.autoplay_leveldir = str_ptr;
4278         global.autoplay_all = TRUE;             /* default: play all tapes */
4279
4280         for (i = 0; i < MAX_TAPES_PER_SET; i++)
4281           global.autoplay_level[i] = FALSE;
4282       }
4283       else                                      /* read level number string */
4284       {
4285         int level_nr = atoi(str_ptr);           /* get level_nr value */
4286
4287         if (level_nr >= 0 && level_nr < MAX_TAPES_PER_SET)
4288           global.autoplay_level[level_nr] = TRUE;
4289
4290         global.autoplay_all = FALSE;
4291       }
4292
4293       /* advance string pointer to the next whitespace (or end of string) */
4294       while (*str_ptr != ' ' && *str_ptr != '\t' && *str_ptr != '\0')
4295         str_ptr++;
4296     }
4297   }
4298   else if (strncmp(command, "convert ", 8) == 0)
4299   {
4300     char *str_copy = getStringCopy(&command[8]);
4301     char *str_ptr = strchr(str_copy, ' ');
4302
4303     global.convert_leveldir = str_copy;
4304     global.convert_level_nr = -1;
4305
4306     if (str_ptr != NULL)                        /* level number follows */
4307     {
4308       *str_ptr++ = '\0';                        /* terminate leveldir string */
4309       global.convert_level_nr = atoi(str_ptr);  /* get level_nr value */
4310     }
4311   }
4312
4313 #if DEBUG
4314 #if defined(TARGET_SDL)
4315   else if (strEqual(command, "SDL_ListModes"))
4316   {
4317     SDL_Rect **modes;
4318     int i;
4319
4320     SDL_Init(SDL_INIT_VIDEO);
4321
4322     /* get available fullscreen/hardware modes */
4323     modes = SDL_ListModes(NULL, SDL_FULLSCREEN | SDL_HWSURFACE);
4324
4325     /* check if there are any modes available */
4326     if (modes == NULL)
4327     {
4328       printf("No modes available!\n");
4329
4330       exit(-1);
4331     }
4332
4333     /* check if our resolution is restricted */
4334     if (modes == (SDL_Rect **)-1)
4335     {
4336       printf("All resolutions available.\n");
4337     }
4338     else
4339     {
4340       printf("Available Modes:\n");
4341
4342       for(i = 0; modes[i]; i++)
4343         printf("  %d x %d\n", modes[i]->w, modes[i]->h);
4344     }
4345
4346     exit(0);
4347   }
4348 #endif
4349 #endif
4350
4351   else
4352   {
4353     Error(ERR_EXIT_HELP, "unrecognized command '%s'", command);
4354   }
4355 }
4356
4357 static void InitSetup()
4358 {
4359   LoadSetup();                                  /* global setup info */
4360
4361   /* set some options from setup file */
4362
4363   if (setup.options.verbose)
4364     options.verbose = TRUE;
4365 }
4366
4367 static void InitGameInfo()
4368 {
4369   game.restart_level = FALSE;
4370 }
4371
4372 static void InitPlayerInfo()
4373 {
4374   int i;
4375
4376   /* choose default local player */
4377   local_player = &stored_player[0];
4378
4379   for (i = 0; i < MAX_PLAYERS; i++)
4380     stored_player[i].connected = FALSE;
4381
4382   local_player->connected = TRUE;
4383 }
4384
4385 static void InitArtworkInfo()
4386 {
4387   LoadArtworkInfo();
4388 }
4389
4390 static char *get_string_in_brackets(char *string)
4391 {
4392   char *string_in_brackets = checked_malloc(strlen(string) + 3);
4393
4394   sprintf(string_in_brackets, "[%s]", string);
4395
4396   return string_in_brackets;
4397 }
4398
4399 static char *get_level_id_suffix(int id_nr)
4400 {
4401   char *id_suffix = checked_malloc(1 + 3 + 1);
4402
4403   if (id_nr < 0 || id_nr > 999)
4404     id_nr = 0;
4405
4406   sprintf(id_suffix, ".%03d", id_nr);
4407
4408   return id_suffix;
4409 }
4410
4411 #if 0
4412 static char *get_element_class_token(int element)
4413 {
4414   char *element_class_name = element_info[element].class_name;
4415   char *element_class_token = checked_malloc(strlen(element_class_name) + 3);
4416
4417   sprintf(element_class_token, "[%s]", element_class_name);
4418
4419   return element_class_token;
4420 }
4421
4422 static char *get_action_class_token(int action)
4423 {
4424   char *action_class_name = &element_action_info[action].suffix[1];
4425   char *action_class_token = checked_malloc(strlen(action_class_name) + 3);
4426
4427   sprintf(action_class_token, "[%s]", action_class_name);
4428
4429   return action_class_token;
4430 }
4431 #endif
4432
4433 static void InitArtworkConfig()
4434 {
4435   static char *image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS + 1];
4436   static char *sound_id_prefix[2 * MAX_NUM_ELEMENTS + 1];
4437   static char *music_id_prefix[NUM_MUSIC_PREFIXES + 1];
4438   static char *action_id_suffix[NUM_ACTIONS + 1];
4439   static char *direction_id_suffix[NUM_DIRECTIONS_FULL + 1];
4440   static char *special_id_suffix[NUM_SPECIAL_GFX_ARGS + 1];
4441   static char *level_id_suffix[MAX_LEVELS + 1];
4442   static char *dummy[1] = { NULL };
4443   static char *ignore_generic_tokens[] =
4444   {
4445     "name",
4446     "sort_priority",
4447     NULL
4448   };
4449   static char **ignore_image_tokens;
4450   static char **ignore_sound_tokens;
4451   static char **ignore_music_tokens;
4452   int num_ignore_generic_tokens;
4453   int num_ignore_image_tokens;
4454   int num_ignore_sound_tokens;
4455   int num_ignore_music_tokens;
4456   int i;
4457
4458   /* dynamically determine list of generic tokens to be ignored */
4459   num_ignore_generic_tokens = 0;
4460   for (i = 0; ignore_generic_tokens[i] != NULL; i++)
4461     num_ignore_generic_tokens++;
4462
4463   /* dynamically determine list of image tokens to be ignored */
4464   num_ignore_image_tokens = num_ignore_generic_tokens;
4465   for (i = 0; image_config_vars[i].token != NULL; i++)
4466     num_ignore_image_tokens++;
4467   ignore_image_tokens =
4468     checked_malloc((num_ignore_image_tokens + 1) * sizeof(char *));
4469   for (i = 0; i < num_ignore_generic_tokens; i++)
4470     ignore_image_tokens[i] = ignore_generic_tokens[i];
4471   for (i = 0; i < num_ignore_image_tokens - num_ignore_generic_tokens; i++)
4472     ignore_image_tokens[num_ignore_generic_tokens + i] =
4473       image_config_vars[i].token;
4474   ignore_image_tokens[num_ignore_image_tokens] = NULL;
4475
4476   /* dynamically determine list of sound tokens to be ignored */
4477   num_ignore_sound_tokens = num_ignore_generic_tokens;
4478   ignore_sound_tokens =
4479     checked_malloc((num_ignore_sound_tokens + 1) * sizeof(char *));
4480   for (i = 0; i < num_ignore_generic_tokens; i++)
4481     ignore_sound_tokens[i] = ignore_generic_tokens[i];
4482   ignore_sound_tokens[num_ignore_sound_tokens] = NULL;
4483
4484   /* dynamically determine list of music tokens to be ignored */
4485   num_ignore_music_tokens = num_ignore_generic_tokens;
4486   ignore_music_tokens =
4487     checked_malloc((num_ignore_music_tokens + 1) * sizeof(char *));
4488   for (i = 0; i < num_ignore_generic_tokens; i++)
4489     ignore_music_tokens[i] = ignore_generic_tokens[i];
4490   ignore_music_tokens[num_ignore_music_tokens] = NULL;
4491
4492   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
4493     image_id_prefix[i] = element_info[i].token_name;
4494   for (i = 0; i < NUM_FONTS; i++)
4495     image_id_prefix[MAX_NUM_ELEMENTS + i] = font_info[i].token_name;
4496   image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS] = NULL;
4497
4498   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
4499     sound_id_prefix[i] = element_info[i].token_name;
4500   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
4501     sound_id_prefix[MAX_NUM_ELEMENTS + i] =
4502       get_string_in_brackets(element_info[i].class_name);
4503   sound_id_prefix[2 * MAX_NUM_ELEMENTS] = NULL;
4504
4505   for (i = 0; i < NUM_MUSIC_PREFIXES; i++)
4506     music_id_prefix[i] = music_prefix_info[i].prefix;
4507   music_id_prefix[NUM_MUSIC_PREFIXES] = NULL;
4508
4509   for (i = 0; i < NUM_ACTIONS; i++)
4510     action_id_suffix[i] = element_action_info[i].suffix;
4511   action_id_suffix[NUM_ACTIONS] = NULL;
4512
4513   for (i = 0; i < NUM_DIRECTIONS_FULL; i++)
4514     direction_id_suffix[i] = element_direction_info[i].suffix;
4515   direction_id_suffix[NUM_DIRECTIONS_FULL] = NULL;
4516
4517   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
4518     special_id_suffix[i] = special_suffix_info[i].suffix;
4519   special_id_suffix[NUM_SPECIAL_GFX_ARGS] = NULL;
4520
4521   for (i = 0; i < MAX_LEVELS; i++)
4522     level_id_suffix[i] = get_level_id_suffix(i);
4523   level_id_suffix[MAX_LEVELS] = NULL;
4524
4525   InitImageList(image_config, NUM_IMAGE_FILES, image_config_suffix,
4526                 image_id_prefix, action_id_suffix, direction_id_suffix,
4527                 special_id_suffix, ignore_image_tokens);
4528   InitSoundList(sound_config, NUM_SOUND_FILES, sound_config_suffix,
4529                 sound_id_prefix, action_id_suffix, dummy,
4530                 special_id_suffix, ignore_sound_tokens);
4531   InitMusicList(music_config, NUM_MUSIC_FILES, music_config_suffix,
4532                 music_id_prefix, special_id_suffix, level_id_suffix,
4533                 dummy, ignore_music_tokens);
4534 }
4535
4536 static void InitMixer()
4537 {
4538   OpenAudio();
4539   StartMixer();
4540 }
4541
4542 void InitGfx()
4543 {
4544   char *filename_font_initial = NULL;
4545   Bitmap *bitmap_font_initial = NULL;
4546   int font_height;
4547   int i, j;
4548
4549   /* determine settings for initial font (for displaying startup messages) */
4550   for (i = 0; image_config[i].token != NULL; i++)
4551   {
4552     for (j = 0; j < NUM_INITIAL_FONTS; j++)
4553     {
4554       char font_token[128];
4555       int len_font_token;
4556
4557       sprintf(font_token, "%s_%d", CONFIG_TOKEN_FONT_INITIAL, j + 1);
4558       len_font_token = strlen(font_token);
4559
4560       if (strEqual(image_config[i].token, font_token))
4561         filename_font_initial = image_config[i].value;
4562       else if (strlen(image_config[i].token) > len_font_token &&
4563                strncmp(image_config[i].token, font_token, len_font_token) == 0)
4564       {
4565         if (strEqual(&image_config[i].token[len_font_token], ".x"))
4566           font_initial[j].src_x = atoi(image_config[i].value);
4567         else if (strEqual(&image_config[i].token[len_font_token], ".y"))
4568           font_initial[j].src_y = atoi(image_config[i].value);
4569         else if (strEqual(&image_config[i].token[len_font_token], ".width"))
4570           font_initial[j].width = atoi(image_config[i].value);
4571         else if (strEqual(&image_config[i].token[len_font_token],".height"))
4572           font_initial[j].height = atoi(image_config[i].value);
4573       }
4574     }
4575   }
4576
4577   for (j = 0; j < NUM_INITIAL_FONTS; j++)
4578   {
4579     font_initial[j].num_chars = DEFAULT_NUM_CHARS_PER_FONT;
4580     font_initial[j].num_chars_per_line = DEFAULT_NUM_CHARS_PER_LINE;
4581   }
4582
4583   if (filename_font_initial == NULL)    /* should not happen */
4584     Error(ERR_EXIT, "cannot get filename for '%s'", CONFIG_TOKEN_FONT_INITIAL);
4585
4586   /* create additional image buffers for double-buffering and cross-fading */
4587   bitmap_db_cross = CreateBitmap(WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH);
4588   bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
4589   bitmap_db_panel = CreateBitmap(DXSIZE, DYSIZE, DEFAULT_DEPTH);
4590   bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
4591
4592   /* initialize screen properties */
4593   InitGfxFieldInfo(SX, SY, SXSIZE, SYSIZE,
4594                    REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE,
4595                    bitmap_db_field);
4596   InitGfxDoor1Info(DX, DY, DXSIZE, DYSIZE);
4597   InitGfxDoor2Info(VX, VY, VXSIZE, VYSIZE);
4598   InitGfxScrollbufferInfo(FXSIZE, FYSIZE);
4599
4600   bitmap_font_initial = LoadCustomImage(filename_font_initial);
4601
4602   for (j = 0; j < NUM_INITIAL_FONTS; j++)
4603     font_initial[j].bitmap = bitmap_font_initial;
4604
4605   InitFontGraphicInfo();
4606
4607   font_height = getFontHeight(FC_RED);
4608
4609 #if 1
4610   DrawInitText(getWindowTitleString(), 20, FC_YELLOW);
4611 #else
4612   DrawInitText(getProgramInitString(), 20, FC_YELLOW);
4613 #endif
4614   DrawInitText(PROGRAM_COPYRIGHT_STRING, 50, FC_RED);
4615   DrawInitText(PROGRAM_WEBSITE_STRING, WIN_YSIZE - 20 - font_height, FC_RED);
4616
4617   DrawInitText("Loading graphics", 120, FC_GREEN);
4618 }
4619
4620 void RedrawBackground()
4621 {
4622   BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, backbuffer,
4623              0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
4624
4625   redraw_mask = REDRAW_ALL;
4626 }
4627
4628 void InitGfxBackground()
4629 {
4630   int x, y;
4631
4632   fieldbuffer = bitmap_db_field;
4633   SetDrawtoField(DRAW_BACKBUFFER);
4634
4635   RedrawBackground();
4636
4637   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
4638   ClearRectangle(bitmap_db_door, 0, 0, 3 * DXSIZE, DYSIZE + VYSIZE);
4639
4640   for (x = 0; x < MAX_BUF_XSIZE; x++)
4641     for (y = 0; y < MAX_BUF_YSIZE; y++)
4642       redraw[x][y] = 0;
4643   redraw_tiles = 0;
4644   redraw_mask = REDRAW_ALL;
4645 }
4646
4647 static void InitLevelInfo()
4648 {
4649   LoadLevelInfo();                              /* global level info */
4650   LoadLevelSetup_LastSeries();                  /* last played series info */
4651   LoadLevelSetup_SeriesInfo();                  /* last played level info */
4652 }
4653
4654 void InitLevelArtworkInfo()
4655 {
4656   LoadLevelArtworkInfo();
4657 }
4658
4659 static void InitImages()
4660 {
4661   setLevelArtworkDir(artwork.gfx_first);
4662
4663 #if 0
4664   printf("::: InitImages for '%s' ['%s', '%s'] ['%s', '%s']\n",
4665          leveldir_current->identifier,
4666          artwork.gfx_current_identifier,
4667          artwork.gfx_current->identifier,
4668          leveldir_current->graphics_set,
4669          leveldir_current->graphics_path);
4670 #endif
4671
4672   ReloadCustomImages();
4673
4674   LoadCustomElementDescriptions();
4675   LoadSpecialMenuDesignSettings();
4676
4677   ReinitializeGraphics();
4678 }
4679
4680 static void InitSound(char *identifier)
4681 {
4682   if (identifier == NULL)
4683     identifier = artwork.snd_current->identifier;
4684
4685   /* set artwork path to send it to the sound server process */
4686   setLevelArtworkDir(artwork.snd_first);
4687
4688   InitReloadCustomSounds(identifier);
4689   ReinitializeSounds();
4690 }
4691
4692 static void InitMusic(char *identifier)
4693 {
4694   if (identifier == NULL)
4695     identifier = artwork.mus_current->identifier;
4696
4697   /* set artwork path to send it to the sound server process */
4698   setLevelArtworkDir(artwork.mus_first);
4699
4700   InitReloadCustomMusic(identifier);
4701   ReinitializeMusic();
4702 }
4703
4704 void InitNetworkServer()
4705 {
4706 #if defined(NETWORK_AVALIABLE)
4707   int nr_wanted;
4708 #endif
4709
4710   if (!options.network)
4711     return;
4712
4713 #if defined(NETWORK_AVALIABLE)
4714   nr_wanted = Request("Choose player", REQ_PLAYER | REQ_STAY_CLOSED);
4715
4716   if (!ConnectToServer(options.server_host, options.server_port))
4717     Error(ERR_EXIT, "cannot connect to network game server");
4718
4719   SendToServer_PlayerName(setup.player_name);
4720   SendToServer_ProtocolVersion();
4721
4722   if (nr_wanted)
4723     SendToServer_NrWanted(nr_wanted);
4724 #endif
4725 }
4726
4727 static char *getNewArtworkIdentifier(int type)
4728 {
4729   static char *leveldir_current_identifier[3] = { NULL, NULL, NULL };
4730   static boolean last_override_level_artwork[3] = { FALSE, FALSE, FALSE };
4731   static boolean last_has_level_artwork_set[3] = { FALSE, FALSE, FALSE };
4732   static boolean initialized[3] = { FALSE, FALSE, FALSE };
4733   TreeInfo *artwork_first_node = ARTWORK_FIRST_NODE(artwork, type);
4734   boolean setup_override_artwork = SETUP_OVERRIDE_ARTWORK(setup, type);
4735   char *setup_artwork_set = SETUP_ARTWORK_SET(setup, type);
4736   char *leveldir_identifier = leveldir_current->identifier;
4737 #if 1
4738   /* !!! setLevelArtworkDir() should be moved to an earlier stage !!! */
4739   char *leveldir_artwork_set = setLevelArtworkDir(artwork_first_node);
4740 #else
4741   char *leveldir_artwork_set = LEVELDIR_ARTWORK_SET(leveldir_current, type);
4742 #endif
4743   boolean has_level_artwork_set = (leveldir_artwork_set != NULL);
4744   char *artwork_current_identifier;
4745   char *artwork_new_identifier = NULL;  /* default: nothing has changed */
4746
4747   /* leveldir_current may be invalid (level group, parent link) */
4748   if (!validLevelSeries(leveldir_current))
4749     return NULL;
4750
4751   /* 1st step: determine artwork set to be activated in descending order:
4752      --------------------------------------------------------------------
4753      1. setup artwork (when configured to override everything else)
4754      2. artwork set configured in "levelinfo.conf" of current level set
4755         (artwork in level directory will have priority when loading later)
4756      3. artwork in level directory (stored in artwork sub-directory)
4757      4. setup artwork (currently configured in setup menu) */
4758
4759   if (setup_override_artwork)
4760     artwork_current_identifier = setup_artwork_set;
4761   else if (leveldir_artwork_set != NULL)
4762     artwork_current_identifier = leveldir_artwork_set;
4763   else if (getTreeInfoFromIdentifier(artwork_first_node, leveldir_identifier))
4764     artwork_current_identifier = leveldir_identifier;
4765   else
4766     artwork_current_identifier = setup_artwork_set;
4767
4768
4769   /* 2nd step: check if it is really needed to reload artwork set
4770      ------------------------------------------------------------ */
4771
4772 #if 0
4773   if (type == ARTWORK_TYPE_GRAPHICS)
4774     printf("::: 0: '%s' ['%s', '%s'] ['%s' ('%s')]\n",
4775            artwork_new_identifier,
4776            ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4777            artwork_current_identifier,
4778            leveldir_current->graphics_set,
4779            leveldir_current->identifier);
4780 #endif
4781
4782   /* ---------- reload if level set and also artwork set has changed ------- */
4783   if (leveldir_current_identifier[type] != leveldir_identifier &&
4784       (last_has_level_artwork_set[type] || has_level_artwork_set))
4785     artwork_new_identifier = artwork_current_identifier;
4786
4787   leveldir_current_identifier[type] = leveldir_identifier;
4788   last_has_level_artwork_set[type] = has_level_artwork_set;
4789
4790 #if 0
4791   if (type == ARTWORK_TYPE_GRAPHICS)
4792     printf("::: 1: '%s'\n", artwork_new_identifier);
4793 #endif
4794
4795   /* ---------- reload if "override artwork" setting has changed ----------- */
4796   if (last_override_level_artwork[type] != setup_override_artwork)
4797     artwork_new_identifier = artwork_current_identifier;
4798
4799   last_override_level_artwork[type] = setup_override_artwork;
4800
4801 #if 0
4802   if (type == ARTWORK_TYPE_GRAPHICS)
4803     printf("::: 2: '%s'\n", artwork_new_identifier);
4804 #endif
4805
4806   /* ---------- reload if current artwork identifier has changed ----------- */
4807   if (!strEqual(ARTWORK_CURRENT_IDENTIFIER(artwork, type),
4808                 artwork_current_identifier))
4809     artwork_new_identifier = artwork_current_identifier;
4810
4811   *(ARTWORK_CURRENT_IDENTIFIER_PTR(artwork, type))= artwork_current_identifier;
4812
4813 #if 0
4814   if (type == ARTWORK_TYPE_GRAPHICS)
4815     printf("::: 3: '%s'\n", artwork_new_identifier);
4816 #endif
4817
4818   /* ---------- do not reload directly after starting ---------------------- */
4819   if (!initialized[type])
4820     artwork_new_identifier = NULL;
4821
4822   initialized[type] = TRUE;
4823
4824 #if 0
4825   if (type == ARTWORK_TYPE_GRAPHICS)
4826     printf("::: 4: '%s'\n", artwork_new_identifier);
4827 #endif
4828
4829 #if 0
4830   if (type == ARTWORK_TYPE_GRAPHICS)
4831     printf("CHECKING OLD/NEW GFX:\n- OLD: %s\n- NEW: %s ['%s', '%s'] ['%s']\n",
4832            artwork.gfx_current_identifier, artwork_current_identifier,
4833            artwork.gfx_current->identifier, leveldir_current->graphics_set,
4834            artwork_new_identifier);
4835 #endif
4836
4837   return artwork_new_identifier;
4838 }
4839
4840 void ReloadCustomArtwork(int force_reload)
4841 {
4842   char *gfx_new_identifier;
4843   char *snd_new_identifier;
4844   char *mus_new_identifier;
4845   boolean force_reload_gfx = (force_reload & (1 << ARTWORK_TYPE_GRAPHICS));
4846   boolean force_reload_snd = (force_reload & (1 << ARTWORK_TYPE_SOUNDS));
4847   boolean force_reload_mus = (force_reload & (1 << ARTWORK_TYPE_MUSIC));
4848   boolean redraw_screen = FALSE;
4849
4850   force_reload_gfx |= AdjustGraphicsForEMC();
4851
4852   gfx_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_GRAPHICS);
4853   snd_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_SOUNDS);
4854   mus_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_MUSIC);
4855
4856   if (gfx_new_identifier != NULL || force_reload_gfx)
4857   {
4858 #if 0
4859     printf("RELOADING GRAPHICS '%s' -> '%s' ['%s', '%s']\n",
4860            artwork.gfx_current_identifier,
4861            gfx_new_identifier,
4862            artwork.gfx_current->identifier,
4863            leveldir_current->graphics_set);
4864 #endif
4865
4866     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4867
4868     InitImages();
4869
4870     redraw_screen = TRUE;
4871   }
4872
4873   if (snd_new_identifier != NULL || force_reload_snd)
4874   {
4875     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4876
4877     InitSound(snd_new_identifier);
4878
4879     redraw_screen = TRUE;
4880   }
4881
4882   if (mus_new_identifier != NULL || force_reload_mus)
4883   {
4884     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4885
4886     InitMusic(mus_new_identifier);
4887
4888     redraw_screen = TRUE;
4889   }
4890
4891   if (redraw_screen)
4892   {
4893     RedrawBackground();
4894
4895     /* force redraw of (open or closed) door graphics */
4896     SetDoorState(DOOR_OPEN_ALL);
4897     CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
4898   }
4899 }
4900
4901 void KeyboardAutoRepeatOffUnlessAutoplay()
4902 {
4903   if (global.autoplay_leveldir == NULL)
4904     KeyboardAutoRepeatOff();
4905 }
4906
4907
4908 /* ========================================================================= */
4909 /* OpenAll()                                                                 */
4910 /* ========================================================================= */
4911
4912 void OpenAll()
4913 {
4914   InitGlobal();                 /* initialize some global variables */
4915
4916   if (options.execute_command)
4917     Execute_Command(options.execute_command);
4918
4919   if (options.serveronly)
4920   {
4921 #if defined(PLATFORM_UNIX)
4922     NetworkServer(options.server_port, options.serveronly);
4923 #else
4924     Error(ERR_WARN, "networking only supported in Unix version");
4925 #endif
4926
4927     exit(0);                    /* never reached, server loops forever */
4928   }
4929
4930   InitSetup();
4931
4932   InitGameInfo();
4933   InitPlayerInfo();
4934   InitArtworkInfo();            /* needed before loading gfx, sound & music */
4935   InitArtworkConfig();          /* needed before forking sound child process */
4936   InitMixer();
4937
4938   InitCounter();
4939
4940   InitRND(NEW_RANDOMIZE);
4941   InitSimpleRandom(NEW_RANDOMIZE);
4942
4943   InitJoysticks();
4944
4945   InitVideoDisplay();
4946   InitVideoBuffer(WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH, setup.fullscreen);
4947
4948   InitEventFilter(FilterMouseMotionEvents);
4949
4950   InitElementPropertiesStatic();
4951   InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
4952
4953   InitGfx();
4954
4955   // debug_print_timestamp(0, "INIT");
4956   InitLevelInfo();
4957   // debug_print_timestamp(0, "TIME InitLevelInfo:        ");
4958   InitLevelArtworkInfo();
4959   // debug_print_timestamp(0, "TIME InitLevelArtworkInfo: ");
4960
4961   InitImages();                 /* needs to know current level directory */
4962   InitSound(NULL);              /* needs to know current level directory */
4963   InitMusic(NULL);              /* needs to know current level directory */
4964
4965   InitGfxBackground();
4966
4967 #if 1
4968   em_open_all();
4969 #endif
4970
4971   if (global.autoplay_leveldir)
4972   {
4973     AutoPlayTape();
4974     return;
4975   }
4976   else if (global.convert_leveldir)
4977   {
4978     ConvertLevels();
4979     return;
4980   }
4981
4982   game_status = GAME_MODE_MAIN;
4983
4984   DrawMainMenu();
4985
4986   InitNetworkServer();
4987 }
4988
4989 void CloseAllAndExit(int exit_value)
4990 {
4991   StopSounds();
4992   FreeAllSounds();
4993   FreeAllMusic();
4994   CloseAudio();         /* called after freeing sounds (needed for SDL) */
4995
4996 #if 1
4997   em_close_all();
4998 #endif
4999
5000   FreeAllImages();
5001
5002 #if defined(TARGET_SDL)
5003   if (network_server)   /* terminate network server */
5004     SDL_KillThread(server_thread);
5005 #endif
5006
5007   CloseVideoDisplay();
5008   ClosePlatformDependentStuff();
5009
5010   if (exit_value != 0)
5011     NotifyUserAboutErrorFile();
5012
5013   exit(exit_value);
5014 }