b7ea2825020ffc76aafe7e857ad5f41acc5d7668
[rocksndiamonds.git] / src / init.c
1 /***********************************************************
2 * Rocks'n'Diamonds -- McDuffin Strikes Back!               *
3 *----------------------------------------------------------*
4 * (c) 1995-2002 Artsoft Entertainment                      *
5 *               Holger Schemel                             *
6 *               Detmolder Strasse 189                      *
7 *               33604 Bielefeld                            *
8 *               Germany                                    *
9 *               e-mail: info@artsoft.org                   *
10 *----------------------------------------------------------*
11 * init.c                                                   *
12 ***********************************************************/
13
14 #include "libgame/libgame.h"
15
16 #include "init.h"
17 #include "events.h"
18 #include "screens.h"
19 #include "editor.h"
20 #include "game.h"
21 #include "tape.h"
22 #include "tools.h"
23 #include "files.h"
24 #include "network.h"
25 #include "netserv.h"
26 #include "cartoons.h"
27 #include "config.h"
28
29 #include "conf_e2g.c"   /* include auto-generated data structure definitions */
30 #include "conf_esg.c"   /* include auto-generated data structure definitions */
31 #include "conf_e2s.c"   /* include auto-generated data structure definitions */
32 #include "conf_fnt.c"   /* include auto-generated data structure definitions */
33 #include "conf_g2s.c"   /* include auto-generated data structure definitions */
34 #include "conf_g2m.c"   /* include auto-generated data structure definitions */
35
36
37 #define CONFIG_TOKEN_FONT_INITIAL               "font.initial"
38
39
40 struct FontBitmapInfo font_initial[NUM_INITIAL_FONTS];
41
42
43 static void InitTileClipmasks()
44 {
45 #if 0
46 #if defined(TARGET_X11)
47   XGCValues clip_gc_values;
48   unsigned long clip_gc_valuemask;
49
50 #if defined(TARGET_X11_NATIVE)
51
52 #if 0
53   GC copy_clipmask_gc;
54
55   static struct
56   {
57     int start;
58     int count;
59   }
60   tile_needs_clipping[] =
61   {
62     { GFX_SPIELER1_UP, 4 },
63     { GFX_SPIELER1_DOWN, 4 },
64     { GFX_SPIELER1_LEFT, 4 },
65     { GFX_SPIELER1_RIGHT, 4 },
66     { GFX_SPIELER1_PUSH_LEFT, 4 },
67     { GFX_SPIELER1_PUSH_RIGHT, 4 },
68     { GFX_SPIELER2_UP, 4 },
69     { GFX_SPIELER2_DOWN, 4 },
70     { GFX_SPIELER2_LEFT, 4 },
71     { GFX_SPIELER2_RIGHT, 4 },
72     { GFX_SPIELER2_PUSH_LEFT, 4 },
73     { GFX_SPIELER2_PUSH_RIGHT, 4 },
74     { GFX_SPIELER3_UP, 4 },
75     { GFX_SPIELER3_DOWN, 4 },
76     { GFX_SPIELER3_LEFT, 4 },
77     { GFX_SPIELER3_RIGHT, 4 },
78     { GFX_SPIELER3_PUSH_LEFT, 4 },
79     { GFX_SPIELER3_PUSH_RIGHT, 4 },
80     { GFX_SPIELER4_UP, 4 },
81     { GFX_SPIELER4_DOWN, 4 },
82     { GFX_SPIELER4_LEFT, 4 },
83     { GFX_SPIELER4_RIGHT, 4 },
84     { GFX_SPIELER4_PUSH_LEFT, 4 },
85     { GFX_SPIELER4_PUSH_RIGHT, 4 },
86     { GFX_SP_MURPHY, 1 },
87     { GFX_MURPHY_GO_LEFT, 3 },
88     { GFX_MURPHY_GO_RIGHT, 3 },
89     { GFX_MURPHY_SNAP_UP, 1 },
90     { GFX_MURPHY_SNAP_DOWN, 1 },
91     { GFX_MURPHY_SNAP_RIGHT, 1 },
92     { GFX_MURPHY_SNAP_LEFT, 1 },
93     { GFX_MURPHY_PUSH_RIGHT, 1 },
94     { GFX_MURPHY_PUSH_LEFT, 1 },
95     { GFX_GEBLUBBER, 4 },
96     { GFX_DYNAMIT, 7 },
97     { GFX_DYNABOMB, 4 },
98     { GFX_EXPLOSION, 8 },
99     { GFX_SOKOBAN_OBJEKT, 1 },
100     { GFX_FUNKELN_BLAU, 3 },
101     { GFX_FUNKELN_WEISS, 3 },
102     { GFX2_SHIELD_PASSIVE, 3 },
103     { GFX2_SHIELD_ACTIVE, 3 },
104     { -1, 0 }
105   };
106 #endif
107
108 #endif /* TARGET_X11_NATIVE */
109 #endif /* TARGET_X11 */
110
111   int i;
112
113   /* initialize pixmap array for special X11 tile clipping to Pixmap 'None' */
114   for (i = 0; i < NUM_TILES; i++)
115     tile_clipmask[i] = None;
116
117 #if defined(TARGET_X11)
118   /* This stuff is needed because X11 (XSetClipOrigin(), to be precise) is
119      often very slow when preparing a masked XCopyArea() for big Pixmaps.
120      To prevent this, create small (tile-sized) mask Pixmaps which will then
121      be set much faster with XSetClipOrigin() and speed things up a lot. */
122
123   clip_gc_values.graphics_exposures = False;
124   clip_gc_valuemask = GCGraphicsExposures;
125   tile_clip_gc = XCreateGC(display, window->drawable,
126                            clip_gc_valuemask, &clip_gc_values);
127
128 #if 0
129   for (i = 0; i < NUM_BITMAPS; i++)
130   {
131     if (pix[i]->clip_mask)
132     {
133       clip_gc_values.graphics_exposures = False;
134       clip_gc_values.clip_mask = pix[i]->clip_mask;
135       clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
136       pix[i]->stored_clip_gc = XCreateGC(display, window->drawable,
137                                          clip_gc_valuemask, &clip_gc_values);
138     }
139   }
140 #endif
141
142 #if defined(TARGET_X11_NATIVE)
143
144 #if 0
145   /* create graphic context structures needed for clipping */
146   clip_gc_values.graphics_exposures = False;
147   clip_gc_valuemask = GCGraphicsExposures;
148   copy_clipmask_gc = XCreateGC(display, pix[PIX_BACK]->clip_mask,
149                                clip_gc_valuemask, &clip_gc_values);
150
151   /* create only those clipping Pixmaps we really need */
152   for (i = 0; tile_needs_clipping[i].start >= 0; i++)
153   {
154     int j;
155
156     for (j = 0; j < tile_needs_clipping[i].count; j++)
157     {
158       int tile = tile_needs_clipping[i].start + j;
159       int graphic = tile;
160       int src_x, src_y;
161       Bitmap *src_bitmap;
162       Pixmap src_pixmap;
163
164       getGraphicSource(graphic, &src_bitmap, &src_x, &src_y);
165       src_pixmap = src_bitmap->clip_mask;
166
167       tile_clipmask[tile] = XCreatePixmap(display, window->drawable,
168                                           TILEX, TILEY, 1);
169
170       XCopyArea(display, src_pixmap, tile_clipmask[tile], copy_clipmask_gc,
171                 src_x, src_y, TILEX, TILEY, 0, 0);
172     }
173   }
174
175   XFreeGC(display, copy_clipmask_gc);
176 #endif
177
178 #endif /* TARGET_X11_NATIVE */
179 #endif /* TARGET_X11 */
180 #endif
181 }
182
183 void FreeTileClipmasks()
184 {
185 #if 0
186 #if defined(TARGET_X11)
187   int i;
188
189   for (i = 0; i < NUM_TILES; i++)
190   {
191     if (tile_clipmask[i] != None)
192     {
193       XFreePixmap(display, tile_clipmask[i]);
194       tile_clipmask[i] = None;
195     }
196   }
197
198   if (tile_clip_gc)
199     XFreeGC(display, tile_clip_gc);
200   tile_clip_gc = None;
201
202 #if 0
203   for (i = 0; i < NUM_BITMAPS; i++)
204   {
205     if (pix[i] != NULL && pix[i]->stored_clip_gc)
206     {
207       XFreeGC(display, pix[i]->stored_clip_gc);
208       pix[i]->stored_clip_gc = None;
209     }
210   }
211 #endif
212
213 #endif /* TARGET_X11 */
214 #endif
215 }
216
217 void FreeGadgets()
218 {
219   FreeLevelEditorGadgets();
220   FreeGameButtons();
221   FreeTapeButtons();
222   FreeToolButtons();
223   FreeScreenGadgets();
224 }
225
226 void InitGadgets()
227 {
228   static boolean gadgets_initialized = FALSE;
229
230   if (gadgets_initialized)
231     FreeGadgets();
232
233   CreateLevelEditorGadgets();
234   CreateGameButtons();
235   CreateTapeButtons();
236   CreateToolButtons();
237   CreateScreenGadgets();
238
239   gadgets_initialized = TRUE;
240 }
241
242 void InitElementSmallImages()
243 {
244   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
245   int num_property_mappings = getImageListPropertyMappingSize();
246   int i;
247
248   /* initialize normal images from static configuration */
249   for (i = 0; element_to_graphic[i].element > -1; i++)
250     CreateImageWithSmallImages(element_to_graphic[i].graphic);
251
252   /* initialize special images from static configuration */
253   for (i = 0; element_to_special_graphic[i].element > -1; i++)
254     CreateImageWithSmallImages(element_to_special_graphic[i].graphic);
255
256   /* initialize images from dynamic configuration */
257   for (i = 0; i < num_property_mappings; i++)
258     if (property_mapping[i].artwork_index < MAX_NUM_ELEMENTS)
259       CreateImageWithSmallImages(property_mapping[i].artwork_index);
260 }
261
262 static int getFontBitmapID(int font_nr)
263 {
264   int special = -1;
265
266   if (game_status >= GAME_MODE_MAIN && game_status <= GAME_MODE_PSEUDO_PREVIEW)
267     special = game_status;
268   else if (game_status == GAME_MODE_PSEUDO_TYPENAME)
269     special = GFX_SPECIAL_ARG_MAIN;
270   else if (game_status == GAME_MODE_PLAYING)
271     special = GFX_SPECIAL_ARG_DOOR;
272
273   if (special != -1)
274     return font_info[font_nr].special_bitmap_id[special];
275   else
276     return font_nr;
277 }
278
279 void InitFontGraphicInfo()
280 {
281   static struct FontBitmapInfo *font_bitmap_info = NULL;
282   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
283   int num_property_mappings = getImageListPropertyMappingSize();
284   int num_font_bitmaps = NUM_FONTS;
285   int i, j;
286
287   if (graphic_info == NULL)             /* still at startup phase */
288   {
289     InitFontInfo(font_initial, NUM_INITIAL_FONTS, getFontBitmapID);
290
291     return;
292   }
293
294   /* ---------- initialize font graphic definitions ---------- */
295
296   /* always start with reliable default values (normal font graphics) */
297 #if 1
298   for (i = 0; i < NUM_FONTS; i++)
299     font_info[i].graphic = IMG_FONT_INITIAL_1;
300 #else
301   for (i = 0; i < NUM_FONTS; i++)
302     font_info[i].graphic = FONT_INITIAL_1;
303 #endif
304
305   /* initialize normal font/graphic mapping from static configuration */
306   for (i = 0; font_to_graphic[i].font_nr > -1; i++)
307   {
308     int font_nr = font_to_graphic[i].font_nr;
309     int special = font_to_graphic[i].special;
310     int graphic = font_to_graphic[i].graphic;
311
312     if (special != -1)
313       continue;
314
315     font_info[font_nr].graphic = graphic;
316   }
317
318   /* always start with reliable default values (special font graphics) */
319   for (i = 0; i < NUM_FONTS; i++)
320   {
321     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
322     {
323       font_info[i].special_graphic[j] = font_info[i].graphic;
324       font_info[i].special_bitmap_id[j] = i;
325     }
326   }
327
328   /* initialize special font/graphic mapping from static configuration */
329   for (i = 0; font_to_graphic[i].font_nr > -1; i++)
330   {
331     int font_nr = font_to_graphic[i].font_nr;
332     int special = font_to_graphic[i].special;
333     int graphic = font_to_graphic[i].graphic;
334
335     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
336     {
337       font_info[font_nr].special_graphic[special] = graphic;
338       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
339       num_font_bitmaps++;
340     }
341   }
342
343   /* initialize special element/graphic mapping from dynamic configuration */
344   for (i = 0; i < num_property_mappings; i++)
345   {
346     int font_nr = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
347     int special = property_mapping[i].ext3_index;
348     int graphic = property_mapping[i].artwork_index;
349
350     if (font_nr < 0)
351       continue;
352
353     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
354     {
355       font_info[font_nr].special_graphic[special] = graphic;
356       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
357       num_font_bitmaps++;
358     }
359   }
360
361   /* ---------- initialize font bitmap array ---------- */
362
363   if (font_bitmap_info != NULL)
364     FreeFontInfo(font_bitmap_info);
365
366   font_bitmap_info =
367     checked_calloc(num_font_bitmaps * sizeof(struct FontBitmapInfo));
368
369   /* ---------- initialize font bitmap definitions ---------- */
370
371   for (i = 0; i < NUM_FONTS; i++)
372   {
373     if (i < NUM_INITIAL_FONTS)
374     {
375       font_bitmap_info[i] = font_initial[i];
376       continue;
377     }
378
379     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
380     {
381       int font_bitmap_id = font_info[i].special_bitmap_id[j];
382       int graphic = font_info[i].special_graphic[j];
383
384       /* set 'graphic_info' for font entries, if uninitialized (guessed) */
385       if (graphic_info[graphic].anim_frames < MIN_NUM_CHARS_PER_FONT)
386       {
387         graphic_info[graphic].anim_frames = DEFAULT_NUM_CHARS_PER_FONT;
388         graphic_info[graphic].anim_frames_per_line= DEFAULT_NUM_CHARS_PER_LINE;
389       }
390
391       /* copy font relevant information from graphics information */
392       font_bitmap_info[font_bitmap_id].bitmap = graphic_info[graphic].bitmap;
393       font_bitmap_info[font_bitmap_id].src_x  = graphic_info[graphic].src_x;
394       font_bitmap_info[font_bitmap_id].src_y  = graphic_info[graphic].src_y;
395       font_bitmap_info[font_bitmap_id].width  = graphic_info[graphic].width;
396       font_bitmap_info[font_bitmap_id].height = graphic_info[graphic].height;
397       font_bitmap_info[font_bitmap_id].draw_x = graphic_info[graphic].draw_x;
398       font_bitmap_info[font_bitmap_id].draw_y = graphic_info[graphic].draw_y;
399
400       font_bitmap_info[font_bitmap_id].num_chars =
401         graphic_info[graphic].anim_frames;
402       font_bitmap_info[font_bitmap_id].num_chars_per_line =
403         graphic_info[graphic].anim_frames_per_line;
404     }
405   }
406
407   InitFontInfo(font_bitmap_info, num_font_bitmaps, getFontBitmapID);
408 }
409
410 void InitElementGraphicInfo()
411 {
412   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
413   int num_property_mappings = getImageListPropertyMappingSize();
414   int i, act, dir;
415
416   if (graphic_info == NULL)             /* still at startup phase */
417     return;
418
419   /* set values to -1 to identify later as "uninitialized" values */
420   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
421   {
422     for (act = 0; act < NUM_ACTIONS; act++)
423     {
424       element_info[i].graphic[act] = -1;
425       element_info[i].crumbled[act] = -1;
426
427       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
428       {
429         element_info[i].direction_graphic[act][dir] = -1;
430         element_info[i].direction_crumbled[act][dir] = -1;
431       }
432     }
433   }
434
435   /* initialize normal element/graphic mapping from static configuration */
436   for (i = 0; element_to_graphic[i].element > -1; i++)
437   {
438     int element      = element_to_graphic[i].element;
439     int action       = element_to_graphic[i].action;
440     int direction    = element_to_graphic[i].direction;
441     boolean crumbled = element_to_graphic[i].crumbled;
442     int graphic      = element_to_graphic[i].graphic;
443
444     if (graphic_info[graphic].bitmap == NULL)
445       continue;
446
447     if ((action > -1 || direction > -1 || crumbled == TRUE) &&
448         el2img(element) != -1)
449     {
450       boolean base_redefined = getImageListEntry(el2img(element))->redefined;
451       boolean act_dir_redefined = getImageListEntry(graphic)->redefined;
452
453       /* if the base graphic ("emerald", for example) has been redefined,
454          but not the action graphic ("emerald.falling", for example), do not
455          use an existing (in this case considered obsolete) action graphic
456          anymore, but use the automatically determined default graphic */
457       if (base_redefined && !act_dir_redefined)
458         continue;
459     }
460
461     if (action < 0)
462       action = ACTION_DEFAULT;
463
464     if (crumbled)
465     {
466       if (direction > -1)
467         element_info[element].direction_crumbled[action][direction] = graphic;
468       else
469         element_info[element].crumbled[action] = graphic;
470     }
471     else
472     {
473       if (direction > -1)
474         element_info[element].direction_graphic[action][direction] = graphic;
475       else
476         element_info[element].graphic[action] = graphic;
477     }
478   }
479
480   /* initialize normal element/graphic mapping from dynamic configuration */
481   for (i = 0; i < num_property_mappings; i++)
482   {
483     int element   = property_mapping[i].base_index;
484     int action    = property_mapping[i].ext1_index;
485     int direction = property_mapping[i].ext2_index;
486     int special   = property_mapping[i].ext3_index;
487     int graphic   = property_mapping[i].artwork_index;
488     boolean crumbled = FALSE;
489
490     if (special == GFX_SPECIAL_ARG_CRUMBLED)
491     {
492       special = -1;
493       crumbled = TRUE;
494     }
495
496     if (graphic_info[graphic].bitmap == NULL)
497       continue;
498
499     if (element >= MAX_NUM_ELEMENTS || special != -1)
500       continue;
501
502     if (action < 0)
503       action = ACTION_DEFAULT;
504
505     if (crumbled)
506     {
507       if (direction < 0)
508         for (dir = 0; dir < NUM_DIRECTIONS; dir++)
509           element_info[element].direction_crumbled[action][dir] = -1;
510
511       if (direction > -1)
512         element_info[element].direction_crumbled[action][direction] = graphic;
513       else
514         element_info[element].crumbled[action] = graphic;
515     }
516     else
517     {
518       if (direction < 0)
519         for (dir = 0; dir < NUM_DIRECTIONS; dir++)
520           element_info[element].direction_graphic[action][dir] = -1;
521
522       if (direction > -1)
523         element_info[element].direction_graphic[action][direction] = graphic;
524       else
525         element_info[element].graphic[action] = graphic;
526     }
527   }
528
529   /* now copy all graphics that are defined to be cloned from other graphics */
530   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
531   {
532     int graphic = element_info[i].graphic[ACTION_DEFAULT];
533     int crumbled_like, diggable_like;
534
535     if (graphic == -1)
536       continue;
537
538     crumbled_like = graphic_info[graphic].crumbled_like;
539     diggable_like = graphic_info[graphic].diggable_like;
540
541     if (crumbled_like != -1 && element_info[i].crumbled[ACTION_DEFAULT] == -1)
542     {
543       for (act = 0; act < NUM_ACTIONS; act++)
544         element_info[i].crumbled[act] =
545           element_info[crumbled_like].crumbled[act];
546       for (act = 0; act < NUM_ACTIONS; act++)
547         for (dir = 0; dir < NUM_DIRECTIONS; dir++)
548           element_info[i].direction_crumbled[act][dir] =
549             element_info[crumbled_like].direction_crumbled[act][dir];
550     }
551
552     if (diggable_like != -1 && element_info[i].graphic[ACTION_DIGGING] == -1)
553     {
554       element_info[i].graphic[ACTION_DIGGING] =
555         element_info[diggable_like].graphic[ACTION_DIGGING];
556       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
557         element_info[i].direction_graphic[ACTION_DIGGING][dir] =
558           element_info[diggable_like].direction_graphic[ACTION_DIGGING][dir];
559     }
560   }
561
562 #if 1
563   /* now set all undefined/invalid graphics to -1 to set to default after it */
564   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
565   {
566     for (act = 0; act < NUM_ACTIONS; act++)
567     {
568       int graphic;
569
570       graphic = element_info[i].graphic[act];
571       if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
572         element_info[i].graphic[act] = -1;
573
574       graphic = element_info[i].crumbled[act];
575       if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
576         element_info[i].crumbled[act] = -1;
577
578       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
579       {
580         graphic = element_info[i].direction_graphic[act][dir];
581         if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
582           element_info[i].direction_graphic[act][dir] = -1;
583
584         graphic = element_info[i].direction_crumbled[act][dir];
585         if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
586           element_info[i].direction_crumbled[act][dir] = -1;
587       }
588     }
589   }
590 #endif
591
592   /* now set all '-1' values to element specific default values */
593   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
594   {
595     int default_graphic = element_info[i].graphic[ACTION_DEFAULT];
596     int default_crumbled = element_info[i].crumbled[ACTION_DEFAULT];
597     int default_direction_graphic[NUM_DIRECTIONS];
598     int default_direction_crumbled[NUM_DIRECTIONS];
599
600     if (default_graphic == -1)
601       default_graphic = IMG_UNKNOWN;
602     if (default_crumbled == -1)
603       default_crumbled = IMG_EMPTY;
604
605     for (dir = 0; dir < NUM_DIRECTIONS; dir++)
606     {
607       default_direction_graphic[dir] =
608         element_info[i].direction_graphic[ACTION_DEFAULT][dir];
609       default_direction_crumbled[dir] =
610         element_info[i].direction_crumbled[ACTION_DEFAULT][dir];
611
612       if (default_direction_graphic[dir] == -1)
613         default_direction_graphic[dir] = default_graphic;
614       if (default_direction_crumbled[dir] == -1)
615         default_direction_crumbled[dir] = default_crumbled;
616     }
617
618     for (act = 0; act < NUM_ACTIONS; act++)
619     {
620       boolean act_remove = ((IS_DIGGABLE(i)    && act == ACTION_DIGGING)  ||
621                             (IS_SNAPPABLE(i)   && act == ACTION_SNAPPING) ||
622                             (IS_COLLECTIBLE(i) && act == ACTION_COLLECTING));
623       boolean act_turning = (act == ACTION_TURNING_FROM_LEFT ||
624                              act == ACTION_TURNING_FROM_RIGHT ||
625                              act == ACTION_TURNING_FROM_UP ||
626                              act == ACTION_TURNING_FROM_DOWN);
627
628       /* generic default action graphic (defined by "[default]" directive) */
629       int default_action_graphic = element_info[EL_DEFAULT].graphic[act];
630       int default_action_crumbled = element_info[EL_DEFAULT].crumbled[act];
631
632       /* look for special default action graphic (classic game specific) */
633       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].graphic[act] != -1)
634         default_action_graphic = element_info[EL_BD_DEFAULT].graphic[act];
635       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].graphic[act] != -1)
636         default_action_graphic = element_info[EL_SP_DEFAULT].graphic[act];
637       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].graphic[act] != -1)
638         default_action_graphic = element_info[EL_SB_DEFAULT].graphic[act];
639
640       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].crumbled[act] != -1)
641         default_action_crumbled = element_info[EL_BD_DEFAULT].crumbled[act];
642       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].crumbled[act] != -1)
643         default_action_crumbled = element_info[EL_SP_DEFAULT].crumbled[act];
644       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].crumbled[act] != -1)
645         default_action_crumbled = element_info[EL_SB_DEFAULT].crumbled[act];
646
647 #if 1
648       /* !!! make this better !!! */
649       if (i == EL_EMPTY_SPACE)
650       {
651         default_action_graphic = element_info[EL_DEFAULT].graphic[act];
652         default_action_crumbled = element_info[EL_DEFAULT].crumbled[act];
653       }
654 #endif
655
656       if (default_action_graphic == -1)
657         default_action_graphic = default_graphic;
658       if (default_action_crumbled == -1)
659         default_action_crumbled = default_crumbled;
660
661       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
662       {
663         int default_action_direction_graphic = element_info[i].graphic[act];
664         int default_action_direction_crumbled = element_info[i].crumbled[act];
665
666         /* no graphic for current action -- use default direction graphic */
667         if (default_action_direction_graphic == -1)
668           default_action_direction_graphic =
669             (act_remove ? IMG_EMPTY :
670              act_turning ?
671              element_info[i].direction_graphic[ACTION_TURNING][dir] :
672              default_direction_graphic[dir]);
673         if (default_action_direction_crumbled == -1)
674           default_action_direction_crumbled =
675             (act_remove ? IMG_EMPTY :
676              act_turning ?
677              element_info[i].direction_crumbled[ACTION_TURNING][dir] :
678              default_direction_crumbled[dir]);
679
680         if (element_info[i].direction_graphic[act][dir] == -1)
681           element_info[i].direction_graphic[act][dir] =
682             default_action_direction_graphic;
683         if (element_info[i].direction_crumbled[act][dir] == -1)
684           element_info[i].direction_crumbled[act][dir] =
685             default_action_direction_crumbled;
686       }
687
688       /* no graphic for this specific action -- use default action graphic */
689       if (element_info[i].graphic[act] == -1)
690         element_info[i].graphic[act] =
691           (act_remove ? IMG_EMPTY :
692            act_turning ? element_info[i].graphic[ACTION_TURNING] :
693            default_action_graphic);
694       if (element_info[i].crumbled[act] == -1)
695         element_info[i].crumbled[act] =
696           (act_remove ? IMG_EMPTY :
697            act_turning ? element_info[i].crumbled[ACTION_TURNING] :
698            default_action_crumbled);
699     }
700   }
701
702 #if 1
703   /* set animation mode to "none" for each graphic with only 1 frame */
704   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
705   {
706     for (act = 0; act < NUM_ACTIONS; act++)
707     {
708       int graphic = element_info[i].graphic[act];
709       int crumbled = element_info[i].crumbled[act];
710
711       if (graphic_info[graphic].anim_frames == 1)
712         graphic_info[graphic].anim_mode = ANIM_NONE;
713       if (graphic_info[crumbled].anim_frames == 1)
714         graphic_info[crumbled].anim_mode = ANIM_NONE;
715
716       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
717       {
718         graphic = element_info[i].direction_graphic[act][dir];
719         crumbled = element_info[i].direction_crumbled[act][dir];
720
721         if (graphic_info[graphic].anim_frames == 1)
722           graphic_info[graphic].anim_mode = ANIM_NONE;
723         if (graphic_info[crumbled].anim_frames == 1)
724           graphic_info[crumbled].anim_mode = ANIM_NONE;
725       }
726     }
727   }
728 #endif
729
730 #if 0
731 #if DEBUG
732   if (options.verbose)
733   {
734     for (i = 0; i < MAX_NUM_ELEMENTS; i++)
735       if (element_info[i].graphic[ACTION_DEFAULT] == IMG_UNKNOWN &&
736           i != EL_UNKNOWN)
737         Error(ERR_RETURN, "warning: no graphic for element '%s' (%d)",
738               element_info[i].token_name, i);
739   }
740 #endif
741 #endif
742 }
743
744 void InitElementSpecialGraphicInfo()
745 {
746   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
747   int num_property_mappings = getImageListPropertyMappingSize();
748   int i, j;
749
750   /* always start with reliable default values */
751   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
752     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
753       element_info[i].special_graphic[j] =
754         element_info[i].graphic[ACTION_DEFAULT];
755
756   /* initialize special element/graphic mapping from static configuration */
757   for (i = 0; element_to_special_graphic[i].element > -1; i++)
758   {
759     int element = element_to_special_graphic[i].element;
760     int special = element_to_special_graphic[i].special;
761     int graphic = element_to_special_graphic[i].graphic;
762     boolean base_redefined = getImageListEntry(el2img(element))->redefined;
763     boolean special_redefined = getImageListEntry(graphic)->redefined;
764
765     /* if the base graphic ("emerald", for example) has been redefined,
766        but not the special graphic ("emerald.EDITOR", for example), do not
767        use an existing (in this case considered obsolete) special graphic
768        anymore, but use the automatically created (down-scaled) graphic */
769     if (base_redefined && !special_redefined)
770       continue;
771
772     element_info[element].special_graphic[special] = graphic;
773   }
774
775   /* initialize special element/graphic mapping from dynamic configuration */
776   for (i = 0; i < num_property_mappings; i++)
777   {
778     int element = property_mapping[i].base_index;
779     int special = property_mapping[i].ext3_index;
780     int graphic = property_mapping[i].artwork_index;
781
782     if (element >= MAX_NUM_ELEMENTS)
783       continue;
784
785     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
786       element_info[element].special_graphic[special] = graphic;
787   }
788
789 #if 1
790   /* now set all undefined/invalid graphics to default */
791   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
792     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
793       if (graphic_info[element_info[i].special_graphic[j]].bitmap == NULL)
794         element_info[i].special_graphic[j] =
795           element_info[i].graphic[ACTION_DEFAULT];
796 #endif
797 }
798
799 static int get_element_from_token(char *token)
800 {
801   int i;
802
803   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
804     if (strcmp(element_info[i].token_name, token) == 0)
805       return i;
806
807   return -1;
808 }
809
810 static void set_graphic_parameters(int graphic, char **parameter_raw)
811 {
812   Bitmap *src_bitmap = getBitmapFromImageID(graphic);
813   int parameter[NUM_GFX_ARGS];
814   int anim_frames_per_row = 1, anim_frames_per_col = 1;
815   int anim_frames_per_line = 1;
816   int i;
817
818   /* get integer values from string parameters */
819   for (i = 0; i < NUM_GFX_ARGS; i++)
820   {
821     parameter[i] =
822       get_parameter_value(image_config_suffix[i].token, parameter_raw[i],
823                           image_config_suffix[i].type);
824
825     if (image_config_suffix[i].type == TYPE_TOKEN)
826       parameter[i] = get_element_from_token(parameter_raw[i]);
827   }
828
829   graphic_info[graphic].bitmap = src_bitmap;
830
831   /* start with reliable default values */
832   graphic_info[graphic].src_x = 0;
833   graphic_info[graphic].src_y = 0;
834   graphic_info[graphic].width = TILEX;
835   graphic_info[graphic].height = TILEY;
836   graphic_info[graphic].offset_x = 0;   /* one or both of these values ... */
837   graphic_info[graphic].offset_y = 0;   /* ... will be corrected later */
838   graphic_info[graphic].crumbled_like = -1;     /* do not use clone element */
839   graphic_info[graphic].diggable_like = -1;     /* do not use clone element */
840   graphic_info[graphic].border_size = TILEX / 8;  /* "CRUMBLED" border size */
841   graphic_info[graphic].anim_delay_fixed = 0;
842   graphic_info[graphic].anim_delay_random = 0;
843   graphic_info[graphic].post_delay_fixed = 0;
844   graphic_info[graphic].post_delay_random = 0;
845
846   /* optional x and y tile position of animation frame sequence */
847   if (parameter[GFX_ARG_XPOS] != ARG_UNDEFINED_VALUE)
848     graphic_info[graphic].src_x = parameter[GFX_ARG_XPOS] * TILEX;
849   if (parameter[GFX_ARG_YPOS] != ARG_UNDEFINED_VALUE)
850     graphic_info[graphic].src_y = parameter[GFX_ARG_YPOS] * TILEY;
851
852   /* optional x and y pixel position of animation frame sequence */
853   if (parameter[GFX_ARG_X] != ARG_UNDEFINED_VALUE)
854     graphic_info[graphic].src_x = parameter[GFX_ARG_X];
855   if (parameter[GFX_ARG_Y] != ARG_UNDEFINED_VALUE)
856     graphic_info[graphic].src_y = parameter[GFX_ARG_Y];
857
858   /* optional width and height of each animation frame */
859   if (parameter[GFX_ARG_WIDTH] != ARG_UNDEFINED_VALUE)
860     graphic_info[graphic].width = parameter[GFX_ARG_WIDTH];
861   if (parameter[GFX_ARG_HEIGHT] != ARG_UNDEFINED_VALUE)
862     graphic_info[graphic].height = parameter[GFX_ARG_HEIGHT];
863
864   if (src_bitmap)
865   {
866     anim_frames_per_row = src_bitmap->width  / graphic_info[graphic].width;
867     anim_frames_per_col = src_bitmap->height / graphic_info[graphic].height;
868   }
869
870   /* correct x or y offset dependent of vertical or horizontal frame order */
871   if (parameter[GFX_ARG_VERTICAL])      /* frames are ordered vertically */
872   {
873     graphic_info[graphic].offset_y =
874       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
875        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].height);
876     anim_frames_per_line = anim_frames_per_col;
877   }
878   else                                  /* frames are ordered horizontally */
879   {
880     graphic_info[graphic].offset_x =
881       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
882        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].width);
883     anim_frames_per_line = anim_frames_per_row;
884   }
885
886   /* optionally, the x and y offset of frames can be specified directly */
887   if (parameter[GFX_ARG_XOFFSET] != ARG_UNDEFINED_VALUE)
888     graphic_info[graphic].offset_x = parameter[GFX_ARG_XOFFSET];
889   if (parameter[GFX_ARG_YOFFSET] != ARG_UNDEFINED_VALUE)
890     graphic_info[graphic].offset_y = parameter[GFX_ARG_YOFFSET];
891
892   /* automatically determine correct number of frames, if not defined */
893   if (parameter[GFX_ARG_FRAMES] != ARG_UNDEFINED_VALUE)
894     graphic_info[graphic].anim_frames = parameter[GFX_ARG_FRAMES];
895   else if (parameter[GFX_ARG_XPOS] == 0 && !parameter[GFX_ARG_VERTICAL])
896     graphic_info[graphic].anim_frames = anim_frames_per_row;
897   else if (parameter[GFX_ARG_YPOS] == 0 && parameter[GFX_ARG_VERTICAL])
898     graphic_info[graphic].anim_frames = anim_frames_per_col;
899   else
900     graphic_info[graphic].anim_frames = 1;
901
902   graphic_info[graphic].anim_frames_per_line =
903     (parameter[GFX_ARG_FRAMES_PER_LINE] != ARG_UNDEFINED_VALUE ?
904      parameter[GFX_ARG_FRAMES_PER_LINE] : anim_frames_per_line);
905
906   graphic_info[graphic].anim_delay = parameter[GFX_ARG_DELAY];
907   if (graphic_info[graphic].anim_delay == 0)    /* delay must be at least 1 */
908     graphic_info[graphic].anim_delay = 1;
909
910   graphic_info[graphic].anim_mode = parameter[GFX_ARG_ANIM_MODE];
911 #if 0
912   if (graphic_info[graphic].anim_frames == 1)
913     graphic_info[graphic].anim_mode = ANIM_NONE;
914 #endif
915
916   /* automatically determine correct start frame, if not defined */
917   if (parameter[GFX_ARG_START_FRAME] == ARG_UNDEFINED_VALUE)
918     graphic_info[graphic].anim_start_frame = 0;
919   else if (graphic_info[graphic].anim_mode & ANIM_REVERSE)
920     graphic_info[graphic].anim_start_frame =
921       graphic_info[graphic].anim_frames - parameter[GFX_ARG_START_FRAME] - 1;
922   else
923     graphic_info[graphic].anim_start_frame = parameter[GFX_ARG_START_FRAME];
924
925   /* animation synchronized with global frame counter, not move position */
926   graphic_info[graphic].anim_global_sync = parameter[GFX_ARG_GLOBAL_SYNC];
927
928   /* optional element for cloning crumble graphics */
929   if (parameter[GFX_ARG_CRUMBLED_LIKE] != ARG_UNDEFINED_VALUE)
930     graphic_info[graphic].crumbled_like = parameter[GFX_ARG_CRUMBLED_LIKE];
931
932   /* optional element for cloning digging graphics */
933   if (parameter[GFX_ARG_DIGGABLE_LIKE] != ARG_UNDEFINED_VALUE)
934     graphic_info[graphic].diggable_like = parameter[GFX_ARG_DIGGABLE_LIKE];
935
936   /* optional border size for "crumbling" diggable graphics */
937   if (parameter[GFX_ARG_BORDER_SIZE] != ARG_UNDEFINED_VALUE)
938     graphic_info[graphic].border_size = parameter[GFX_ARG_BORDER_SIZE];
939
940   /* this is only used for player "boring" and "sleeping" actions */
941   if (parameter[GFX_ARG_ANIM_DELAY_FIXED] != ARG_UNDEFINED_VALUE)
942     graphic_info[graphic].anim_delay_fixed =
943       parameter[GFX_ARG_ANIM_DELAY_FIXED];
944   if (parameter[GFX_ARG_ANIM_DELAY_RANDOM] != ARG_UNDEFINED_VALUE)
945     graphic_info[graphic].anim_delay_random =
946       parameter[GFX_ARG_ANIM_DELAY_RANDOM];
947   if (parameter[GFX_ARG_POST_DELAY_FIXED] != ARG_UNDEFINED_VALUE)
948     graphic_info[graphic].post_delay_fixed =
949       parameter[GFX_ARG_POST_DELAY_FIXED];
950   if (parameter[GFX_ARG_POST_DELAY_RANDOM] != ARG_UNDEFINED_VALUE)
951     graphic_info[graphic].post_delay_random =
952       parameter[GFX_ARG_POST_DELAY_RANDOM];
953
954   /* this is only used for toon animations */
955   graphic_info[graphic].step_offset = parameter[GFX_ARG_STEP_OFFSET];
956   graphic_info[graphic].step_delay  = parameter[GFX_ARG_STEP_DELAY];
957
958   /* this is only used for drawing font characters */
959   graphic_info[graphic].draw_x = parameter[GFX_ARG_DRAW_XOFFSET];
960   graphic_info[graphic].draw_y = parameter[GFX_ARG_DRAW_YOFFSET];
961
962   /* this is only used for drawing envelope graphics */
963   graphic_info[graphic].draw_masked = parameter[GFX_ARG_DRAW_MASKED];
964 }
965
966 static void InitGraphicInfo()
967 {
968   int fallback_graphic = IMG_CHAR_EXCLAM;
969   struct FileInfo *fallback_image = getImageListEntry(fallback_graphic);
970   Bitmap *fallback_bitmap = getBitmapFromImageID(fallback_graphic);
971   int num_images = getImageListSize();
972   int i;
973
974 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
975   static boolean clipmasks_initialized = FALSE;
976   Pixmap src_pixmap;
977   XGCValues clip_gc_values;
978   unsigned long clip_gc_valuemask;
979   GC copy_clipmask_gc = None;
980 #endif
981
982   checked_free(graphic_info);
983
984   graphic_info = checked_calloc(num_images * sizeof(struct GraphicInfo));
985
986 #if 0
987   printf("::: graphic_info: %d entries\n", num_images);
988 #endif
989
990 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
991   if (clipmasks_initialized)
992   {
993     for (i = 0; i < num_images; i++)
994     {
995       if (graphic_info[i].clip_mask)
996         XFreePixmap(display, graphic_info[i].clip_mask);
997       if (graphic_info[i].clip_gc)
998         XFreeGC(display, graphic_info[i].clip_gc);
999
1000       graphic_info[i].clip_mask = None;
1001       graphic_info[i].clip_gc = None;
1002     }
1003   }
1004 #endif
1005
1006   for (i = 0; i < num_images; i++)
1007   {
1008     struct FileInfo *image = getImageListEntry(i);
1009     Bitmap *src_bitmap;
1010     int src_x, src_y;
1011     int first_frame, last_frame;
1012
1013 #if 0
1014     printf("::: image: '%s' [%d]\n", image->token, i);
1015 #endif
1016
1017 #if 0
1018     printf("::: image # %d: '%s' ['%s']\n",
1019            i, image->token,
1020            getTokenFromImageID(i));
1021 #endif
1022
1023     set_graphic_parameters(i, image->parameter);
1024
1025     /* now check if no animation frames are outside of the loaded image */
1026
1027     if (graphic_info[i].bitmap == NULL)
1028       continue;         /* skip check for optional images that are undefined */
1029
1030     first_frame = 0;
1031     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
1032     if (src_x < 0 || src_y < 0 ||
1033         src_x + TILEX > src_bitmap->width ||
1034         src_y + TILEY > src_bitmap->height)
1035     {
1036       Error(ERR_RETURN_LINE, "-");
1037       Error(ERR_RETURN, "warning: error found in config file:");
1038       Error(ERR_RETURN, "- config file: '%s'",
1039             getImageConfigFilename());
1040       Error(ERR_RETURN, "- config token: '%s'",
1041             getTokenFromImageID(i));
1042       Error(ERR_RETURN, "- image file: '%s'",
1043             src_bitmap->source_filename);
1044       Error(ERR_RETURN,
1045             "error: first animation frame out of bounds (%d, %d)",
1046             src_x, src_y);
1047       Error(ERR_RETURN, "custom graphic rejected for this element/action");
1048
1049       if (i == fallback_graphic)
1050         Error(ERR_EXIT, "fatal error: no fallback graphic available");
1051
1052       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1053       Error(ERR_RETURN_LINE, "-");
1054
1055       set_graphic_parameters(i, fallback_image->default_parameter);
1056       graphic_info[i].bitmap = fallback_bitmap;
1057     }
1058
1059     last_frame = graphic_info[i].anim_frames - 1;
1060     getGraphicSource(i, last_frame, &src_bitmap, &src_x, &src_y);
1061     if (src_x < 0 || src_y < 0 ||
1062         src_x + TILEX > src_bitmap->width ||
1063         src_y + TILEY > src_bitmap->height)
1064     {
1065       Error(ERR_RETURN_LINE, "-");
1066       Error(ERR_RETURN, "warning: error found in config file:");
1067       Error(ERR_RETURN, "- config file: '%s'",
1068             getImageConfigFilename());
1069       Error(ERR_RETURN, "- config token: '%s'",
1070             getTokenFromImageID(i));
1071       Error(ERR_RETURN, "- image file: '%s'",
1072             src_bitmap->source_filename);
1073       Error(ERR_RETURN,
1074             "error: last animation frame (%d) out of bounds (%d, %d)",
1075             last_frame, src_x, src_y);
1076       Error(ERR_RETURN, "custom graphic rejected for this element/action");
1077
1078       if (i == fallback_graphic)
1079         Error(ERR_EXIT, "fatal error: no fallback graphic available");
1080
1081       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
1082       Error(ERR_RETURN_LINE, "-");
1083
1084       set_graphic_parameters(i, fallback_image->default_parameter);
1085       graphic_info[i].bitmap = fallback_bitmap;
1086     }
1087
1088 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1089     /* currently we need only a tile clip mask from the first frame */
1090     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
1091
1092     if (copy_clipmask_gc == None)
1093     {
1094       clip_gc_values.graphics_exposures = False;
1095       clip_gc_valuemask = GCGraphicsExposures;
1096       copy_clipmask_gc = XCreateGC(display, src_bitmap->clip_mask,
1097                                    clip_gc_valuemask, &clip_gc_values);
1098     }
1099
1100     graphic_info[i].clip_mask =
1101       XCreatePixmap(display, window->drawable, TILEX, TILEY, 1);
1102
1103     src_pixmap = src_bitmap->clip_mask;
1104     XCopyArea(display, src_pixmap, graphic_info[i].clip_mask,
1105               copy_clipmask_gc, src_x, src_y, TILEX, TILEY, 0, 0);
1106
1107     clip_gc_values.graphics_exposures = False;
1108     clip_gc_values.clip_mask = graphic_info[i].clip_mask;
1109     clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
1110
1111     graphic_info[i].clip_gc =
1112       XCreateGC(display, window->drawable, clip_gc_valuemask, &clip_gc_values);
1113 #endif
1114   }
1115
1116 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
1117   if (copy_clipmask_gc)
1118     XFreeGC(display, copy_clipmask_gc);
1119
1120   clipmasks_initialized = TRUE;
1121 #endif
1122 }
1123
1124 static void InitElementSoundInfo()
1125 {
1126   struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
1127   int num_property_mappings = getSoundListPropertyMappingSize();
1128   int i, j, act;
1129
1130   /* set values to -1 to identify later as "uninitialized" values */
1131   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1132     for (act = 0; act < NUM_ACTIONS; act++)
1133       element_info[i].sound[act] = -1;
1134
1135   /* initialize element/sound mapping from static configuration */
1136   for (i = 0; element_to_sound[i].element > -1; i++)
1137   {
1138     int element      = element_to_sound[i].element;
1139     int action       = element_to_sound[i].action;
1140     int sound        = element_to_sound[i].sound;
1141     boolean is_class = element_to_sound[i].is_class;
1142
1143     if (action < 0)
1144       action = ACTION_DEFAULT;
1145
1146     if (!is_class)
1147       element_info[element].sound[action] = sound;
1148     else
1149       for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1150         if (strcmp(element_info[j].class_name,
1151                    element_info[element].class_name) == 0)
1152           element_info[j].sound[action] = sound;
1153   }
1154
1155   /* initialize element class/sound mapping from dynamic configuration */
1156   for (i = 0; i < num_property_mappings; i++)
1157   {
1158     int element_class = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
1159     int action        = property_mapping[i].ext1_index;
1160     int sound         = property_mapping[i].artwork_index;
1161
1162     if (element_class < 0 || element_class >= MAX_NUM_ELEMENTS)
1163       continue;
1164
1165     if (action < 0)
1166       action = ACTION_DEFAULT;
1167
1168     for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1169       if (strcmp(element_info[j].class_name,
1170                  element_info[element_class].class_name) == 0)
1171         element_info[j].sound[action] = sound;
1172   }
1173
1174   /* initialize element/sound mapping from dynamic configuration */
1175   for (i = 0; i < num_property_mappings; i++)
1176   {
1177     int element = property_mapping[i].base_index;
1178     int action  = property_mapping[i].ext1_index;
1179     int sound   = property_mapping[i].artwork_index;
1180
1181     if (element >= MAX_NUM_ELEMENTS)
1182       continue;
1183
1184     if (action < 0)
1185       action = ACTION_DEFAULT;
1186
1187     element_info[element].sound[action] = sound;
1188   }
1189
1190   /* now set all '-1' values to element specific default values */
1191   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1192   {
1193     for (act = 0; act < NUM_ACTIONS; act++)
1194     {
1195       /* generic default action sound (defined by "[default]" directive) */
1196       int default_action_sound = element_info[EL_DEFAULT].sound[act];
1197
1198       /* look for special default action sound (classic game specific) */
1199       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].sound[act] != -1)
1200         default_action_sound = element_info[EL_BD_DEFAULT].sound[act];
1201       if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].sound[act] != -1)
1202         default_action_sound = element_info[EL_SP_DEFAULT].sound[act];
1203       if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].sound[act] != -1)
1204         default_action_sound = element_info[EL_SB_DEFAULT].sound[act];
1205
1206       /* !!! there's no such thing as a "default action sound" !!! */
1207 #if 0
1208       /* look for element specific default sound (independent from action) */
1209       if (element_info[i].sound[ACTION_DEFAULT] != -1)
1210         default_action_sound = element_info[i].sound[ACTION_DEFAULT];
1211 #endif
1212
1213       /* no sound for this specific action -- use default action sound */
1214       if (element_info[i].sound[act] == -1)
1215         element_info[i].sound[act] = default_action_sound;
1216     }
1217   }
1218 }
1219
1220 static void InitGameModeSoundInfo()
1221 {
1222   int i;
1223
1224   /* set values to -1 to identify later as "uninitialized" values */
1225   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1226     menu.sound[i] = -1;
1227
1228   /* initialize gamemode/sound mapping from static configuration */
1229   for (i = 0; gamemode_to_sound[i].sound > -1; i++)
1230   {
1231     int gamemode = gamemode_to_sound[i].gamemode;
1232     int sound    = gamemode_to_sound[i].sound;
1233
1234     if (gamemode < 0)
1235       gamemode = GAME_MODE_DEFAULT;
1236
1237     menu.sound[gamemode] = sound;
1238   }
1239
1240   /* now set all '-1' values to levelset specific default values */
1241   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1242     if (menu.sound[i] == -1)
1243       menu.sound[i] = menu.sound[GAME_MODE_DEFAULT];
1244
1245 #if 0
1246   /* TEST ONLY */
1247   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1248     if (menu.sound[i] != -1)
1249       printf("::: menu.sound[%d] == %d\n", i, menu.sound[i]);
1250 #endif
1251 }
1252
1253 static void set_sound_parameters(int sound, char **parameter_raw)
1254 {
1255   int parameter[NUM_SND_ARGS];
1256   int i;
1257
1258   /* get integer values from string parameters */
1259   for (i = 0; i < NUM_SND_ARGS; i++)
1260     parameter[i] =
1261       get_parameter_value(sound_config_suffix[i].token, parameter_raw[i],
1262                           sound_config_suffix[i].type);
1263
1264   /* explicit loop mode setting in configuration overrides default value */
1265   if (parameter[SND_ARG_MODE_LOOP] != ARG_UNDEFINED_VALUE)
1266     sound_info[sound].loop = parameter[SND_ARG_MODE_LOOP];
1267 }
1268
1269 static void InitSoundInfo()
1270 {
1271 #if 0
1272   struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
1273   int num_property_mappings = getSoundListPropertyMappingSize();
1274 #endif
1275   int *sound_effect_properties;
1276   int num_sounds = getSoundListSize();
1277   int i, j;
1278
1279   checked_free(sound_info);
1280
1281   sound_effect_properties = checked_calloc(num_sounds * sizeof(int));
1282   sound_info = checked_calloc(num_sounds * sizeof(struct SoundInfo));
1283
1284   /* initialize sound effect for all elements to "no sound" */
1285   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
1286     for (j = 0; j < NUM_ACTIONS; j++)
1287       element_info[i].sound[j] = SND_UNDEFINED;
1288
1289   for (i = 0; i < num_sounds; i++)
1290   {
1291     struct FileInfo *sound = getSoundListEntry(i);
1292     int len_effect_text = strlen(sound->token);
1293
1294     sound_effect_properties[i] = ACTION_OTHER;
1295     sound_info[i].loop = FALSE;         /* default: play sound only once */
1296
1297 #if 0
1298     printf("::: sound %d: '%s'\n", i, sound->token);
1299 #endif
1300
1301     /* determine all loop sounds and identify certain sound classes */
1302
1303     for (j = 0; element_action_info[j].suffix; j++)
1304     {
1305       int len_action_text = strlen(element_action_info[j].suffix);
1306
1307       if (len_action_text < len_effect_text &&
1308           strcmp(&sound->token[len_effect_text - len_action_text],
1309                  element_action_info[j].suffix) == 0)
1310       {
1311         sound_effect_properties[i] = element_action_info[j].value;
1312         sound_info[i].loop = element_action_info[j].is_loop_sound;
1313
1314         break;
1315       }
1316     }
1317
1318 #if 0
1319     if (strcmp(sound->token, "custom_42") == 0)
1320       printf("::: '%s' -> %d\n", sound->token, sound_info[i].loop);
1321 #endif
1322
1323     /* associate elements and some selected sound actions */
1324
1325     for (j = 0; j < MAX_NUM_ELEMENTS; j++)
1326     {
1327       if (element_info[j].class_name)
1328       {
1329         int len_class_text = strlen(element_info[j].class_name);
1330
1331         if (len_class_text + 1 < len_effect_text &&
1332             strncmp(sound->token,
1333                     element_info[j].class_name, len_class_text) == 0 &&
1334             sound->token[len_class_text] == '.')
1335         {
1336           int sound_action_value = sound_effect_properties[i];
1337
1338           element_info[j].sound[sound_action_value] = i;
1339         }
1340       }
1341     }
1342
1343     set_sound_parameters(i, sound->parameter);
1344   }
1345
1346   free(sound_effect_properties);
1347
1348 #if 0
1349   /* !!! now handled in InitElementSoundInfo() !!! */
1350   /* initialize element/sound mapping from dynamic configuration */
1351   for (i = 0; i < num_property_mappings; i++)
1352   {
1353     int element   = property_mapping[i].base_index;
1354     int action    = property_mapping[i].ext1_index;
1355     int sound     = property_mapping[i].artwork_index;
1356
1357     if (action < 0)
1358       action = ACTION_DEFAULT;
1359
1360     printf("::: %d: %d, %d, %d ['%s']\n",
1361            i, element, action, sound, element_info[element].token_name);
1362
1363     element_info[element].sound[action] = sound;
1364   }
1365 #endif
1366
1367 #if 0
1368   /* TEST ONLY */
1369   {
1370     int element = EL_CUSTOM_11;
1371     int j = 0;
1372
1373     while (element_action_info[j].suffix)
1374     {
1375       printf("element %d, sound action '%s'  == %d\n",
1376              element, element_action_info[j].suffix,
1377              element_info[element].sound[j]);
1378       j++;
1379     }
1380   }
1381
1382   PlaySoundLevelElementAction(0,0, EL_CUSTOM_11, ACTION_PUSHING);
1383 #endif
1384
1385 #if 0
1386   /* TEST ONLY */
1387   {
1388     int element = EL_SAND;
1389     int sound_action = ACTION_DIGGING;
1390     int j = 0;
1391
1392     while (element_action_info[j].suffix)
1393     {
1394       if (element_action_info[j].value == sound_action)
1395         printf("element %d, sound action '%s'  == %d\n",
1396                element, element_action_info[j].suffix,
1397                element_info[element].sound[sound_action]);
1398       j++;
1399     }
1400   }
1401 #endif
1402 }
1403
1404 static void InitGameModeMusicInfo()
1405 {
1406   struct PropertyMapping *property_mapping = getMusicListPropertyMapping();
1407   int num_property_mappings = getMusicListPropertyMappingSize();
1408   int default_levelset_music = -1;
1409   int i;
1410
1411   /* set values to -1 to identify later as "uninitialized" values */
1412   for (i = 0; i < MAX_LEVELS; i++)
1413     levelset.music[i] = -1;
1414   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1415     menu.music[i] = -1;
1416
1417   /* initialize gamemode/music mapping from static configuration */
1418   for (i = 0; gamemode_to_music[i].music > -1; i++)
1419   {
1420     int gamemode = gamemode_to_music[i].gamemode;
1421     int music    = gamemode_to_music[i].music;
1422
1423 #if 0
1424     printf("::: gamemode == %d, music == %d\n", gamemode, music);
1425 #endif
1426
1427     if (gamemode < 0)
1428       gamemode = GAME_MODE_DEFAULT;
1429
1430     menu.music[gamemode] = music;
1431   }
1432
1433   /* initialize gamemode/music mapping from dynamic configuration */
1434   for (i = 0; i < num_property_mappings; i++)
1435   {
1436     int prefix   = property_mapping[i].base_index;
1437     int gamemode = property_mapping[i].ext1_index;
1438     int level    = property_mapping[i].ext2_index;
1439     int music    = property_mapping[i].artwork_index;
1440
1441 #if 0
1442     printf("::: prefix == %d, gamemode == %d, level == %d, music == %d\n",
1443            prefix, gamemode, level, music);
1444 #endif
1445
1446     if (prefix < 0 || prefix >= NUM_MUSIC_PREFIXES)
1447       continue;
1448
1449     if (gamemode < 0)
1450       gamemode = GAME_MODE_DEFAULT;
1451
1452     /* level specific music only allowed for in-game music */
1453     if (level != -1 && gamemode == GAME_MODE_DEFAULT)
1454       gamemode = GAME_MODE_PLAYING;
1455
1456     if (level == -1)
1457     {
1458       level = 0;
1459       default_levelset_music = music;
1460     }
1461
1462     if (gamemode == GAME_MODE_PLAYING || gamemode == GAME_MODE_DEFAULT)
1463       levelset.music[level] = music;
1464     if (gamemode != GAME_MODE_PLAYING)
1465       menu.music[gamemode] = music;
1466   }
1467
1468   /* now set all '-1' values to menu specific default values */
1469   /* (undefined values of "levelset.music[]" might stay at "-1" to
1470      allow dynamic selection of music files from music directory!) */
1471   for (i = 0; i < MAX_LEVELS; i++)
1472     if (levelset.music[i] == -1)
1473       levelset.music[i] = default_levelset_music;
1474   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1475     if (menu.music[i] == -1)
1476       menu.music[i] = menu.music[GAME_MODE_DEFAULT];
1477
1478 #if 0
1479   /* TEST ONLY */
1480   for (i = 0; i < MAX_LEVELS; i++)
1481     if (levelset.music[i] != -1)
1482       printf("::: levelset.music[%d] == %d\n", i, levelset.music[i]);
1483   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
1484     if (menu.music[i] != -1)
1485       printf("::: menu.music[%d] == %d\n", i, menu.music[i]);
1486 #endif
1487 }
1488
1489 static void set_music_parameters(int music, char **parameter_raw)
1490 {
1491   int parameter[NUM_MUS_ARGS];
1492   int i;
1493
1494   /* get integer values from string parameters */
1495   for (i = 0; i < NUM_MUS_ARGS; i++)
1496     parameter[i] =
1497       get_parameter_value(music_config_suffix[i].token, parameter_raw[i],
1498                           music_config_suffix[i].type);
1499
1500   /* explicit loop mode setting in configuration overrides default value */
1501   if (parameter[MUS_ARG_MODE_LOOP] != ARG_UNDEFINED_VALUE)
1502     music_info[music].loop = parameter[MUS_ARG_MODE_LOOP];
1503 }
1504
1505 static void InitMusicInfo()
1506 {
1507   int num_music = getMusicListSize();
1508   int i, j;
1509
1510   checked_free(music_info);
1511
1512   music_info = checked_calloc(num_music * sizeof(struct MusicInfo));
1513
1514   for (i = 0; i < num_music; i++)
1515   {
1516     struct FileInfo *music = getMusicListEntry(i);
1517     int len_music_text = strlen(music->token);
1518
1519     music_info[i].loop = TRUE;          /* default: play music in loop mode */
1520
1521     /* determine all loop music */
1522
1523     for (j = 0; music_prefix_info[j].prefix; j++)
1524     {
1525       int len_prefix_text = strlen(music_prefix_info[j].prefix);
1526
1527       if (len_prefix_text < len_music_text &&
1528           strncmp(music->token,
1529                   music_prefix_info[j].prefix, len_prefix_text) == 0)
1530       {
1531         music_info[i].loop = music_prefix_info[j].is_loop_music;
1532
1533         break;
1534       }
1535     }
1536
1537     set_music_parameters(i, music->parameter);
1538   }
1539 }
1540
1541 static void ReinitializeGraphics()
1542 {
1543   InitGraphicInfo();                    /* graphic properties mapping */
1544   InitElementGraphicInfo();             /* element game graphic mapping */
1545   InitElementSpecialGraphicInfo();      /* element special graphic mapping */
1546
1547   InitElementSmallImages();             /* create editor and preview images */
1548   InitFontGraphicInfo();                /* initialize text drawing functions */
1549
1550   SetMainBackgroundImage(IMG_BACKGROUND);
1551   SetDoorBackgroundImage(IMG_BACKGROUND_DOOR);
1552
1553   InitGadgets();
1554   InitToons();
1555 }
1556
1557 static void ReinitializeSounds()
1558 {
1559   InitSoundInfo();              /* sound properties mapping */
1560   InitElementSoundInfo();       /* element game sound mapping */
1561   InitGameModeSoundInfo();      /* game mode sound mapping */
1562
1563   InitPlayLevelSound();         /* internal game sound settings */
1564 }
1565
1566 static void ReinitializeMusic()
1567 {
1568   InitMusicInfo();              /* music properties mapping */
1569   InitGameModeMusicInfo();      /* game mode music mapping */
1570 }
1571
1572 static int get_special_property_bit(int element, int base_property_bit)
1573 {
1574   static struct
1575   {
1576     int element;
1577     int bit_nr;
1578   } pb_can_move_into_acid[] =
1579   {
1580     { EL_BUG,                   0 },
1581     { EL_BUG_LEFT,              0 },
1582     { EL_BUG_RIGHT,             0 },
1583     { EL_BUG_UP,                0 },
1584     { EL_BUG_DOWN,              0 },
1585     { EL_SPACESHIP,             0 },
1586     { EL_SPACESHIP_LEFT,        0 },
1587     { EL_SPACESHIP_RIGHT,       0 },
1588     { EL_SPACESHIP_UP,          0 },
1589     { EL_SPACESHIP_DOWN,        0 },
1590     { EL_BD_BUTTERFLY,          1 },
1591     { EL_BD_BUTTERFLY_LEFT,     1 },
1592     { EL_BD_BUTTERFLY_RIGHT,    1 },
1593     { EL_BD_BUTTERFLY_UP,       1 },
1594     { EL_BD_BUTTERFLY_DOWN,     1 },
1595     { EL_BD_FIREFLY,            1 },
1596     { EL_BD_FIREFLY_LEFT,       1 },
1597     { EL_BD_FIREFLY_RIGHT,      1 },
1598     { EL_BD_FIREFLY_UP,         1 },
1599     { EL_BD_FIREFLY_DOWN,       1 },
1600     { EL_YAMYAM,                2 },
1601     { EL_DARK_YAMYAM,           2 },
1602     { EL_ROBOT,                 3 },
1603     { EL_PACMAN,                4 },
1604     { EL_PACMAN_LEFT,           4 },
1605     { EL_PACMAN_RIGHT,          4 },
1606     { EL_PACMAN_UP,             4 },
1607     { EL_PACMAN_DOWN,           4 },
1608     { EL_MOLE,                  4 },
1609     { EL_MOLE_LEFT,             4 },
1610     { EL_MOLE_RIGHT,            4 },
1611     { EL_MOLE_UP,               4 },
1612     { EL_MOLE_DOWN,             4 },
1613     { EL_PENGUIN,               5 },
1614     { EL_PIG,                   6 },
1615     { EL_DRAGON,                6 },
1616     { EL_SATELLITE,             7 },
1617     { EL_SP_SNIKSNAK,           8 },
1618     { EL_SP_ELECTRON,           8 },
1619     { EL_BALLOON,               9 },
1620
1621     { -1,                       0 },
1622   };
1623   int i;
1624
1625   if (base_property_bit != EP_CAN_MOVE_INTO_ACID)
1626     return -1;
1627
1628   for (i = 0; pb_can_move_into_acid[i].element != -1; i++)
1629     if (pb_can_move_into_acid[i].element == element)
1630       return pb_can_move_into_acid[i].bit_nr;
1631
1632   return -1;
1633 }
1634
1635 void setMoveIntoAcidProperty(struct LevelInfo *level, int element, boolean set)
1636 {
1637   int bit_nr = get_special_property_bit(element, EP_CAN_MOVE_INTO_ACID);
1638
1639   if (bit_nr > -1)
1640   {
1641     level->can_move_into_acid &= ~(1 << bit_nr);
1642
1643     if (set)
1644       level->can_move_into_acid |= (1 << bit_nr);
1645   }
1646 }
1647
1648 boolean getMoveIntoAcidProperty(struct LevelInfo *level, int element)
1649 {
1650   int bit_nr = get_special_property_bit(element, EP_CAN_MOVE_INTO_ACID);
1651
1652   if (bit_nr > -1)
1653     return ((level->can_move_into_acid & (1 << bit_nr)) != 0);
1654
1655   return FALSE;
1656 }
1657
1658 void InitElementPropertiesStatic()
1659 {
1660   static int ep_diggable[] =
1661   {
1662     EL_SAND,
1663     EL_SP_BASE,
1664     EL_SP_BUGGY_BASE,
1665     EL_SP_BUGGY_BASE_ACTIVATING,
1666     EL_TRAP,
1667     EL_INVISIBLE_SAND,
1668     EL_INVISIBLE_SAND_ACTIVE,
1669
1670     /* !!! currently not diggable, but handled by 'ep_dont_run_into' !!! */
1671 #if 0
1672     EL_LANDMINE,
1673     EL_TRAP_ACTIVE,
1674     EL_SP_BUGGY_BASE_ACTIVE,
1675 #endif
1676     -1
1677   };
1678
1679   static int ep_collectible_only[] =
1680   {
1681     EL_BD_DIAMOND,
1682     EL_EMERALD,
1683     EL_DIAMOND,
1684     EL_EMERALD_YELLOW,
1685     EL_EMERALD_RED,
1686     EL_EMERALD_PURPLE,
1687     EL_KEY_1,
1688     EL_KEY_2,
1689     EL_KEY_3,
1690     EL_KEY_4,
1691     EL_EM_KEY_1,
1692     EL_EM_KEY_2,
1693     EL_EM_KEY_3,
1694     EL_EM_KEY_4,
1695     EL_DYNAMITE,
1696     EL_DYNABOMB_INCREASE_NUMBER,
1697     EL_DYNABOMB_INCREASE_SIZE,
1698     EL_DYNABOMB_INCREASE_POWER,
1699     EL_SP_INFOTRON,
1700     EL_SP_DISK_RED,
1701     EL_PEARL,
1702     EL_CRYSTAL,
1703     EL_KEY_WHITE,
1704     EL_SHIELD_NORMAL,
1705     EL_SHIELD_DEADLY,
1706     EL_EXTRA_TIME,
1707     EL_ENVELOPE_1,
1708     EL_ENVELOPE_2,
1709     EL_ENVELOPE_3,
1710     EL_ENVELOPE_4,
1711     EL_SPEED_PILL,
1712     -1
1713   };
1714
1715   static int ep_dont_run_into[] =
1716   {
1717     /* same elements as in 'ep_dont_touch' */
1718     EL_BUG,
1719     EL_SPACESHIP,
1720     EL_BD_BUTTERFLY,
1721     EL_BD_FIREFLY,
1722
1723     /* same elements as in 'ep_dont_collide_with' */
1724     EL_YAMYAM,
1725     EL_DARK_YAMYAM,
1726     EL_ROBOT,
1727     EL_PACMAN,
1728     EL_SP_SNIKSNAK,
1729     EL_SP_ELECTRON,
1730
1731     /* new elements */
1732     EL_AMOEBA_DROP,
1733     EL_ACID,
1734
1735     /* !!! maybe this should better be handled by 'ep_diggable' !!! */
1736 #if 1
1737     EL_LANDMINE,
1738     EL_TRAP_ACTIVE,
1739     EL_SP_BUGGY_BASE_ACTIVE,
1740 #endif
1741     -1
1742   };
1743
1744   static int ep_dont_collide_with[] =
1745   {
1746     /* same elements as in 'ep_dont_touch' */
1747     EL_BUG,
1748     EL_SPACESHIP,
1749     EL_BD_BUTTERFLY,
1750     EL_BD_FIREFLY,
1751
1752     /* new elements */
1753     EL_YAMYAM,
1754     EL_DARK_YAMYAM,
1755     EL_ROBOT,
1756     EL_PACMAN,
1757     EL_SP_SNIKSNAK,
1758     EL_SP_ELECTRON,
1759     -1
1760   };
1761
1762   static int ep_dont_touch[] =
1763   {
1764     EL_BUG,
1765     EL_SPACESHIP,
1766     EL_BD_BUTTERFLY,
1767     EL_BD_FIREFLY,
1768     -1
1769   };
1770
1771   static int ep_indestructible[] =
1772   {
1773     EL_STEELWALL,
1774     EL_ACID,
1775     EL_ACID_POOL_TOPLEFT,
1776     EL_ACID_POOL_TOPRIGHT,
1777     EL_ACID_POOL_BOTTOMLEFT,
1778     EL_ACID_POOL_BOTTOM,
1779     EL_ACID_POOL_BOTTOMRIGHT,
1780     EL_SP_HARDWARE_GRAY,
1781     EL_SP_HARDWARE_GREEN,
1782     EL_SP_HARDWARE_BLUE,
1783     EL_SP_HARDWARE_RED,
1784     EL_SP_HARDWARE_YELLOW,
1785     EL_SP_HARDWARE_BASE_1,
1786     EL_SP_HARDWARE_BASE_2,
1787     EL_SP_HARDWARE_BASE_3,
1788     EL_SP_HARDWARE_BASE_4,
1789     EL_SP_HARDWARE_BASE_5,
1790     EL_SP_HARDWARE_BASE_6,
1791     EL_INVISIBLE_STEELWALL,
1792     EL_INVISIBLE_STEELWALL_ACTIVE,
1793     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1794     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1795     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1796     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1797     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1798     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1799     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1800     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1801     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1802     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1803     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1804     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1805     EL_LIGHT_SWITCH,
1806     EL_LIGHT_SWITCH_ACTIVE,
1807     EL_SIGN_EXCLAMATION,
1808     EL_SIGN_RADIOACTIVITY,
1809     EL_SIGN_STOP,
1810     EL_SIGN_WHEELCHAIR,
1811     EL_SIGN_PARKING,
1812     EL_SIGN_ONEWAY,
1813     EL_SIGN_HEART,
1814     EL_SIGN_TRIANGLE,
1815     EL_SIGN_ROUND,
1816     EL_SIGN_EXIT,
1817     EL_SIGN_YINYANG,
1818     EL_SIGN_OTHER,
1819     EL_STEELWALL_SLIPPERY,
1820     EL_EMC_STEELWALL_1,
1821     EL_EMC_STEELWALL_2,
1822     EL_EMC_STEELWALL_3,
1823     EL_EMC_STEELWALL_4,
1824     EL_CRYSTAL,
1825     EL_GATE_1,
1826     EL_GATE_2,
1827     EL_GATE_3,
1828     EL_GATE_4,
1829     EL_GATE_1_GRAY,
1830     EL_GATE_2_GRAY,
1831     EL_GATE_3_GRAY,
1832     EL_GATE_4_GRAY,
1833     EL_EM_GATE_1,
1834     EL_EM_GATE_2,
1835     EL_EM_GATE_3,
1836     EL_EM_GATE_4,
1837     EL_EM_GATE_1_GRAY,
1838     EL_EM_GATE_2_GRAY,
1839     EL_EM_GATE_3_GRAY,
1840     EL_EM_GATE_4_GRAY,
1841     EL_SWITCHGATE_OPEN,
1842     EL_SWITCHGATE_OPENING,
1843     EL_SWITCHGATE_CLOSED,
1844     EL_SWITCHGATE_CLOSING,
1845 #if 0
1846     EL_SWITCHGATE_SWITCH_UP,
1847     EL_SWITCHGATE_SWITCH_DOWN,
1848 #endif
1849     EL_TIMEGATE_OPEN,
1850     EL_TIMEGATE_OPENING,
1851     EL_TIMEGATE_CLOSED,
1852     EL_TIMEGATE_CLOSING,
1853 #if 0
1854     EL_TIMEGATE_SWITCH,
1855     EL_TIMEGATE_SWITCH_ACTIVE,
1856 #endif
1857     EL_TUBE_ANY,
1858     EL_TUBE_VERTICAL,
1859     EL_TUBE_HORIZONTAL,
1860     EL_TUBE_VERTICAL_LEFT,
1861     EL_TUBE_VERTICAL_RIGHT,
1862     EL_TUBE_HORIZONTAL_UP,
1863     EL_TUBE_HORIZONTAL_DOWN,
1864     EL_TUBE_LEFT_UP,
1865     EL_TUBE_LEFT_DOWN,
1866     EL_TUBE_RIGHT_UP,
1867     EL_TUBE_RIGHT_DOWN,
1868     -1
1869   };
1870
1871   static int ep_slippery[] =
1872   {
1873     EL_WALL_SLIPPERY,
1874     EL_BD_WALL,
1875     EL_ROCK,
1876     EL_BD_ROCK,
1877     EL_EMERALD,
1878     EL_BD_DIAMOND,
1879     EL_EMERALD_YELLOW,
1880     EL_EMERALD_RED,
1881     EL_EMERALD_PURPLE,
1882     EL_DIAMOND,
1883     EL_BOMB,
1884     EL_NUT,
1885     EL_ROBOT_WHEEL_ACTIVE,
1886     EL_ROBOT_WHEEL,
1887     EL_TIME_ORB_FULL,
1888     EL_TIME_ORB_EMPTY,
1889     EL_LAMP_ACTIVE,
1890     EL_LAMP,
1891     EL_ACID_POOL_TOPLEFT,
1892     EL_ACID_POOL_TOPRIGHT,
1893     EL_SATELLITE,
1894     EL_SP_ZONK,
1895     EL_SP_INFOTRON,
1896     EL_SP_CHIP_SINGLE,
1897     EL_SP_CHIP_LEFT,
1898     EL_SP_CHIP_RIGHT,
1899     EL_SP_CHIP_TOP,
1900     EL_SP_CHIP_BOTTOM,
1901     EL_SPEED_PILL,
1902     EL_STEELWALL_SLIPPERY,
1903     EL_PEARL,
1904     EL_CRYSTAL,
1905     -1
1906   };
1907
1908   static int ep_can_change[] =
1909   {
1910     -1
1911   };
1912
1913   static int ep_can_move[] =
1914   {
1915     EL_BUG,
1916     EL_SPACESHIP,
1917     EL_BD_BUTTERFLY,
1918     EL_BD_FIREFLY,
1919     EL_YAMYAM,
1920     EL_DARK_YAMYAM,
1921     EL_ROBOT,
1922     EL_PACMAN,
1923     EL_MOLE,
1924     EL_PENGUIN,
1925     EL_PIG,
1926     EL_DRAGON,
1927     EL_SATELLITE,
1928     EL_SP_SNIKSNAK,
1929     EL_SP_ELECTRON,
1930     EL_BALLOON,
1931     EL_SPRING,
1932     -1
1933   };
1934
1935   static int ep_can_fall[] =
1936   {
1937     EL_ROCK,
1938     EL_BD_ROCK,
1939     EL_EMERALD,
1940     EL_BD_DIAMOND,
1941     EL_EMERALD_YELLOW,
1942     EL_EMERALD_RED,
1943     EL_EMERALD_PURPLE,
1944     EL_DIAMOND,
1945     EL_BOMB,
1946     EL_NUT,
1947     EL_AMOEBA_DROP,
1948     EL_QUICKSAND_FULL,
1949     EL_MAGIC_WALL_FULL,
1950     EL_BD_MAGIC_WALL_FULL,
1951     EL_TIME_ORB_FULL,
1952     EL_TIME_ORB_EMPTY,
1953     EL_SP_ZONK,
1954     EL_SP_INFOTRON,
1955     EL_SP_DISK_ORANGE,
1956     EL_PEARL,
1957     EL_CRYSTAL,
1958     EL_SPRING,
1959     EL_DX_SUPABOMB,
1960     -1
1961   };
1962
1963   static int ep_can_smash_player[] =
1964   {
1965     EL_ROCK,
1966     EL_BD_ROCK,
1967     EL_EMERALD,
1968     EL_BD_DIAMOND,
1969     EL_EMERALD_YELLOW,
1970     EL_EMERALD_RED,
1971     EL_EMERALD_PURPLE,
1972     EL_DIAMOND,
1973     EL_BOMB,
1974     EL_NUT,
1975     EL_AMOEBA_DROP,
1976     EL_TIME_ORB_FULL,
1977     EL_TIME_ORB_EMPTY,
1978     EL_SP_ZONK,
1979     EL_SP_INFOTRON,
1980     EL_SP_DISK_ORANGE,
1981     EL_PEARL,
1982     EL_CRYSTAL,
1983     EL_SPRING,
1984     EL_DX_SUPABOMB,
1985     -1
1986   };
1987
1988   static int ep_can_smash_enemies[] =
1989   {
1990     EL_ROCK,
1991     EL_BD_ROCK,
1992     EL_SP_ZONK,
1993     -1
1994   };
1995
1996   static int ep_can_smash_everything[] =
1997   {
1998     EL_ROCK,
1999     EL_BD_ROCK,
2000     EL_SP_ZONK,
2001     -1
2002   };
2003
2004   static int ep_can_explode_by_fire[] =
2005   {
2006     /* same elements as in 'ep_can_explode_impact' */
2007     EL_BOMB,
2008     EL_SP_DISK_ORANGE,
2009     EL_DX_SUPABOMB,
2010
2011     /* same elements as in 'ep_can_explode_smashed' */
2012     EL_SATELLITE,
2013     EL_PIG,
2014     EL_DRAGON,
2015     EL_MOLE,
2016
2017     /* new elements */
2018     EL_DYNAMITE_ACTIVE,
2019     EL_DYNAMITE,
2020     EL_DYNABOMB_PLAYER_1_ACTIVE,
2021     EL_DYNABOMB_PLAYER_2_ACTIVE,
2022     EL_DYNABOMB_PLAYER_3_ACTIVE,
2023     EL_DYNABOMB_PLAYER_4_ACTIVE,
2024     EL_DYNABOMB_INCREASE_NUMBER,
2025     EL_DYNABOMB_INCREASE_SIZE,
2026     EL_DYNABOMB_INCREASE_POWER,
2027     EL_SP_DISK_RED_ACTIVE,
2028     EL_BUG,
2029     EL_PENGUIN,
2030     EL_SP_DISK_RED,
2031     EL_SP_DISK_YELLOW,
2032     EL_SP_SNIKSNAK,
2033     EL_SP_ELECTRON,
2034 #if 0
2035     EL_BLACK_ORB,
2036 #endif
2037     -1
2038   };
2039
2040   static int ep_can_explode_smashed[] =
2041   {
2042     /* same elements as in 'ep_can_explode_impact' */
2043     EL_BOMB,
2044     EL_SP_DISK_ORANGE,
2045     EL_DX_SUPABOMB,
2046
2047     /* new elements */
2048     EL_SATELLITE,
2049     EL_PIG,
2050     EL_DRAGON,
2051     EL_MOLE,
2052     -1
2053   };
2054
2055   static int ep_can_explode_impact[] =
2056   {
2057     EL_BOMB,
2058     EL_SP_DISK_ORANGE,
2059     EL_DX_SUPABOMB,
2060     -1
2061   };
2062
2063   static int ep_walkable_over[] =
2064   {
2065     EL_EMPTY_SPACE,
2066     EL_SP_EMPTY_SPACE,
2067     EL_SOKOBAN_FIELD_EMPTY,
2068     EL_EXIT_OPEN,
2069     EL_SP_EXIT_OPEN,
2070     EL_SP_EXIT_OPENING,
2071     EL_GATE_1,
2072     EL_GATE_2,
2073     EL_GATE_3,
2074     EL_GATE_4,
2075     EL_GATE_1_GRAY,
2076     EL_GATE_2_GRAY,
2077     EL_GATE_3_GRAY,
2078     EL_GATE_4_GRAY,
2079     EL_PENGUIN,
2080     EL_PIG,
2081     EL_DRAGON,
2082     -1
2083   };
2084
2085   static int ep_walkable_inside[] =
2086   {
2087     EL_TUBE_ANY,
2088     EL_TUBE_VERTICAL,
2089     EL_TUBE_HORIZONTAL,
2090     EL_TUBE_VERTICAL_LEFT,
2091     EL_TUBE_VERTICAL_RIGHT,
2092     EL_TUBE_HORIZONTAL_UP,
2093     EL_TUBE_HORIZONTAL_DOWN,
2094     EL_TUBE_LEFT_UP,
2095     EL_TUBE_LEFT_DOWN,
2096     EL_TUBE_RIGHT_UP,
2097     EL_TUBE_RIGHT_DOWN,
2098     -1
2099   };
2100
2101   static int ep_walkable_under[] =
2102   {
2103     -1
2104   };
2105
2106   static int ep_passable_over[] =
2107   {
2108     EL_EM_GATE_1,
2109     EL_EM_GATE_2,
2110     EL_EM_GATE_3,
2111     EL_EM_GATE_4,
2112     EL_EM_GATE_1_GRAY,
2113     EL_EM_GATE_2_GRAY,
2114     EL_EM_GATE_3_GRAY,
2115     EL_EM_GATE_4_GRAY,
2116     EL_SWITCHGATE_OPEN,
2117     EL_TIMEGATE_OPEN,
2118     -1
2119   };
2120
2121   static int ep_passable_inside[] =
2122   {
2123     EL_SP_PORT_LEFT,
2124     EL_SP_PORT_RIGHT,
2125     EL_SP_PORT_UP,
2126     EL_SP_PORT_DOWN,
2127     EL_SP_PORT_HORIZONTAL,
2128     EL_SP_PORT_VERTICAL,
2129     EL_SP_PORT_ANY,
2130     EL_SP_GRAVITY_PORT_LEFT,
2131     EL_SP_GRAVITY_PORT_RIGHT,
2132     EL_SP_GRAVITY_PORT_UP,
2133     EL_SP_GRAVITY_PORT_DOWN,
2134     -1
2135   };
2136
2137   static int ep_passable_under[] =
2138   {
2139     -1
2140   };
2141
2142   static int ep_droppable[] =
2143   {
2144     -1
2145   };
2146
2147   static int ep_can_explode_1x1[] =
2148   {
2149     -1
2150   };
2151
2152   static int ep_pushable[] =
2153   {
2154     EL_ROCK,
2155     EL_BOMB,
2156     EL_DX_SUPABOMB,
2157     EL_NUT,
2158     EL_TIME_ORB_EMPTY,
2159     EL_SP_ZONK,
2160     EL_SP_DISK_ORANGE,
2161     EL_SPRING,
2162     EL_BD_ROCK,
2163     EL_SOKOBAN_OBJECT,
2164     EL_SOKOBAN_FIELD_FULL,
2165     EL_SATELLITE,
2166     EL_SP_DISK_YELLOW,
2167     EL_BALLOON,
2168     -1
2169   };
2170
2171   static int ep_can_explode_dyna[] =
2172   {
2173     -1
2174   };
2175
2176   static int ep_protected[] =
2177   {
2178     EL_EM_GATE_1,
2179     EL_EM_GATE_2,
2180     EL_EM_GATE_3,
2181     EL_EM_GATE_4,
2182     EL_EM_GATE_1_GRAY,
2183     EL_EM_GATE_2_GRAY,
2184     EL_EM_GATE_3_GRAY,
2185     EL_EM_GATE_4_GRAY,
2186     EL_SWITCHGATE_OPEN,
2187     EL_TIMEGATE_OPEN,
2188     -1
2189   };
2190
2191   static int ep_player[] =
2192   {
2193     EL_PLAYER_1,
2194     EL_PLAYER_2,
2195     EL_PLAYER_3,
2196     EL_PLAYER_4,
2197     EL_SP_MURPHY,
2198     -1
2199   };
2200
2201   static int ep_can_pass_magic_wall[] =
2202   {
2203     EL_ROCK,
2204     EL_BD_ROCK,
2205     EL_EMERALD,
2206     EL_BD_DIAMOND,
2207     EL_EMERALD_YELLOW,
2208     EL_EMERALD_RED,
2209     EL_EMERALD_PURPLE,
2210     EL_DIAMOND,
2211     -1
2212   };
2213
2214   static int ep_switchable[] =
2215   {
2216     EL_ROBOT_WHEEL,
2217     EL_SP_TERMINAL,
2218     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2219     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2220     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2221     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2222     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2223     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2224     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2225     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2226     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2227     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2228     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2229     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2230     EL_SWITCHGATE_SWITCH_UP,
2231     EL_SWITCHGATE_SWITCH_DOWN,
2232     EL_LIGHT_SWITCH,
2233     EL_LIGHT_SWITCH_ACTIVE,
2234     EL_TIMEGATE_SWITCH,
2235     EL_BALLOON_SWITCH_LEFT,
2236     EL_BALLOON_SWITCH_RIGHT,
2237     EL_BALLOON_SWITCH_UP,
2238     EL_BALLOON_SWITCH_DOWN,
2239     EL_BALLOON_SWITCH_ANY,
2240     EL_LAMP,
2241     EL_TIME_ORB_FULL,
2242     -1
2243   };
2244
2245   static int ep_bd_element[] =
2246   {
2247     EL_EMPTY,
2248     EL_SAND,
2249     EL_WALL_SLIPPERY,
2250     EL_BD_WALL,
2251     EL_ROCK,
2252     EL_BD_ROCK,
2253     EL_BD_DIAMOND,
2254     EL_BD_MAGIC_WALL,
2255     EL_EXIT_CLOSED,
2256     EL_EXIT_OPEN,
2257     EL_STEELWALL,
2258     EL_PLAYER_1,
2259     EL_BD_FIREFLY,
2260     EL_BD_FIREFLY_1,
2261     EL_BD_FIREFLY_2,
2262     EL_BD_FIREFLY_3,
2263     EL_BD_FIREFLY_4,
2264     EL_BD_BUTTERFLY,
2265     EL_BD_BUTTERFLY_1,
2266     EL_BD_BUTTERFLY_2,
2267     EL_BD_BUTTERFLY_3,
2268     EL_BD_BUTTERFLY_4,
2269     EL_BD_AMOEBA,
2270     EL_CHAR_QUESTION,
2271     EL_UNKNOWN,
2272     -1
2273   };
2274
2275   static int ep_sp_element[] =
2276   {
2277     /* should always be valid */
2278     EL_EMPTY,
2279
2280     EL_SP_EMPTY,
2281     EL_SP_ZONK,
2282     EL_SP_BASE,
2283     EL_SP_MURPHY,
2284     EL_SP_INFOTRON,
2285     EL_SP_CHIP_SINGLE,
2286     EL_SP_HARDWARE_GRAY,
2287     EL_SP_EXIT_CLOSED,
2288     EL_SP_EXIT_OPEN,
2289     EL_SP_DISK_ORANGE,
2290     EL_SP_PORT_RIGHT,
2291     EL_SP_PORT_DOWN,
2292     EL_SP_PORT_LEFT,
2293     EL_SP_PORT_UP,
2294     EL_SP_GRAVITY_PORT_RIGHT,
2295     EL_SP_GRAVITY_PORT_DOWN,
2296     EL_SP_GRAVITY_PORT_LEFT,
2297     EL_SP_GRAVITY_PORT_UP,
2298     EL_SP_SNIKSNAK,
2299     EL_SP_DISK_YELLOW,
2300     EL_SP_TERMINAL,
2301     EL_SP_DISK_RED,
2302     EL_SP_PORT_VERTICAL,
2303     EL_SP_PORT_HORIZONTAL,
2304     EL_SP_PORT_ANY,
2305     EL_SP_ELECTRON,
2306     EL_SP_BUGGY_BASE,
2307     EL_SP_CHIP_LEFT,
2308     EL_SP_CHIP_RIGHT,
2309     EL_SP_HARDWARE_BASE_1,
2310     EL_SP_HARDWARE_GREEN,
2311     EL_SP_HARDWARE_BLUE,
2312     EL_SP_HARDWARE_RED,
2313     EL_SP_HARDWARE_YELLOW,
2314     EL_SP_HARDWARE_BASE_2,
2315     EL_SP_HARDWARE_BASE_3,
2316     EL_SP_HARDWARE_BASE_4,
2317     EL_SP_HARDWARE_BASE_5,
2318     EL_SP_HARDWARE_BASE_6,
2319     EL_SP_CHIP_TOP,
2320     EL_SP_CHIP_BOTTOM,
2321     /* additional elements that appeared in newer Supaplex levels */
2322     EL_INVISIBLE_WALL,
2323     /* more than one murphy in a level results in an inactive clone */
2324     EL_SP_MURPHY_CLONE,
2325     /* runtime elements*/
2326     EL_SP_DISK_RED_ACTIVE,
2327     EL_SP_TERMINAL_ACTIVE,
2328     EL_SP_BUGGY_BASE_ACTIVATING,
2329     EL_SP_BUGGY_BASE_ACTIVE,
2330     EL_SP_EXIT_OPENING,
2331     EL_SP_EXIT_CLOSING,
2332     -1
2333   };
2334
2335   static int ep_sb_element[] =
2336   {
2337     EL_EMPTY,
2338     EL_STEELWALL,
2339     EL_SOKOBAN_OBJECT,
2340     EL_SOKOBAN_FIELD_EMPTY,
2341     EL_SOKOBAN_FIELD_FULL,
2342     EL_PLAYER_1,
2343     EL_INVISIBLE_STEELWALL,
2344     -1
2345   };
2346
2347   static int ep_gem[] =
2348   {
2349     EL_BD_DIAMOND,
2350     EL_EMERALD,
2351     EL_EMERALD_YELLOW,
2352     EL_EMERALD_RED,
2353     EL_EMERALD_PURPLE,
2354     EL_DIAMOND,
2355     -1
2356   };
2357
2358   static int ep_food_dark_yamyam[] =
2359   {
2360     EL_SAND,
2361     EL_BUG,
2362     EL_SPACESHIP,
2363     EL_BD_BUTTERFLY,
2364     EL_BD_FIREFLY,
2365     EL_YAMYAM,
2366     EL_ROBOT,
2367     EL_PACMAN,
2368     EL_AMOEBA_DROP,
2369     EL_AMOEBA_DEAD,
2370     EL_AMOEBA_WET,
2371     EL_AMOEBA_DRY,
2372     EL_AMOEBA_FULL,
2373     EL_BD_AMOEBA,
2374     EL_EMERALD,
2375     EL_BD_DIAMOND,
2376     EL_EMERALD_YELLOW,
2377     EL_EMERALD_RED,
2378     EL_EMERALD_PURPLE,
2379     EL_DIAMOND,
2380     EL_PEARL,
2381     EL_CRYSTAL,
2382     -1
2383   };
2384
2385   static int ep_food_penguin[] =
2386   {
2387     EL_EMERALD,
2388     EL_BD_DIAMOND,
2389     EL_EMERALD_YELLOW,
2390     EL_EMERALD_RED,
2391     EL_EMERALD_PURPLE,
2392     EL_DIAMOND,
2393     EL_PEARL,
2394     EL_CRYSTAL,
2395     -1
2396   };
2397
2398   static int ep_food_pig[] =
2399   {
2400     EL_EMERALD,
2401     EL_BD_DIAMOND,
2402     EL_EMERALD_YELLOW,
2403     EL_EMERALD_RED,
2404     EL_EMERALD_PURPLE,
2405     EL_DIAMOND,
2406     -1
2407   };
2408
2409   static int ep_historic_wall[] =
2410   {
2411     EL_STEELWALL,
2412     EL_GATE_1,
2413     EL_GATE_2,
2414     EL_GATE_3,
2415     EL_GATE_4,
2416     EL_GATE_1_GRAY,
2417     EL_GATE_2_GRAY,
2418     EL_GATE_3_GRAY,
2419     EL_GATE_4_GRAY,
2420     EL_EM_GATE_1,
2421     EL_EM_GATE_2,
2422     EL_EM_GATE_3,
2423     EL_EM_GATE_4,
2424     EL_EM_GATE_1_GRAY,
2425     EL_EM_GATE_2_GRAY,
2426     EL_EM_GATE_3_GRAY,
2427     EL_EM_GATE_4_GRAY,
2428     EL_EXIT_CLOSED,
2429     EL_EXIT_OPENING,
2430     EL_EXIT_OPEN,
2431     EL_WALL,
2432     EL_WALL_SLIPPERY,
2433     EL_EXPANDABLE_WALL,
2434     EL_EXPANDABLE_WALL_HORIZONTAL,
2435     EL_EXPANDABLE_WALL_VERTICAL,
2436     EL_EXPANDABLE_WALL_ANY,
2437     EL_EXPANDABLE_WALL_GROWING,
2438     EL_BD_WALL,
2439     EL_SP_CHIP_SINGLE,
2440     EL_SP_CHIP_LEFT,
2441     EL_SP_CHIP_RIGHT,
2442     EL_SP_CHIP_TOP,
2443     EL_SP_CHIP_BOTTOM,
2444     EL_SP_HARDWARE_GRAY,
2445     EL_SP_HARDWARE_GREEN,
2446     EL_SP_HARDWARE_BLUE,
2447     EL_SP_HARDWARE_RED,
2448     EL_SP_HARDWARE_YELLOW,
2449     EL_SP_HARDWARE_BASE_1,
2450     EL_SP_HARDWARE_BASE_2,
2451     EL_SP_HARDWARE_BASE_3,
2452     EL_SP_HARDWARE_BASE_4,
2453     EL_SP_HARDWARE_BASE_5,
2454     EL_SP_HARDWARE_BASE_6,
2455     EL_SP_TERMINAL,
2456     EL_SP_TERMINAL_ACTIVE,
2457     EL_SP_EXIT_CLOSED,
2458     EL_SP_EXIT_OPEN,
2459     EL_INVISIBLE_STEELWALL,
2460     EL_INVISIBLE_STEELWALL_ACTIVE,
2461     EL_INVISIBLE_WALL,
2462     EL_INVISIBLE_WALL_ACTIVE,
2463     EL_STEELWALL_SLIPPERY,
2464     EL_EMC_STEELWALL_1,
2465     EL_EMC_STEELWALL_2,
2466     EL_EMC_STEELWALL_3,
2467     EL_EMC_STEELWALL_4,
2468     EL_EMC_WALL_1,
2469     EL_EMC_WALL_2,
2470     EL_EMC_WALL_3,
2471     EL_EMC_WALL_4,
2472     EL_EMC_WALL_5,
2473     EL_EMC_WALL_6,
2474     EL_EMC_WALL_7,
2475     EL_EMC_WALL_8,
2476     -1
2477   };
2478
2479   static int ep_historic_solid[] =
2480   {
2481     EL_WALL,
2482     EL_EXPANDABLE_WALL,
2483     EL_EXPANDABLE_WALL_HORIZONTAL,
2484     EL_EXPANDABLE_WALL_VERTICAL,
2485     EL_EXPANDABLE_WALL_ANY,
2486     EL_BD_WALL,
2487     EL_WALL_SLIPPERY,
2488     EL_EXIT_CLOSED,
2489     EL_EXIT_OPENING,
2490     EL_EXIT_OPEN,
2491     EL_AMOEBA_DEAD,
2492     EL_AMOEBA_WET,
2493     EL_AMOEBA_DRY,
2494     EL_AMOEBA_FULL,
2495     EL_BD_AMOEBA,
2496     EL_QUICKSAND_EMPTY,
2497     EL_QUICKSAND_FULL,
2498     EL_QUICKSAND_FILLING,
2499     EL_QUICKSAND_EMPTYING,
2500     EL_MAGIC_WALL,
2501     EL_MAGIC_WALL_ACTIVE,
2502     EL_MAGIC_WALL_EMPTYING,
2503     EL_MAGIC_WALL_FILLING,
2504     EL_MAGIC_WALL_FULL,
2505     EL_MAGIC_WALL_DEAD,
2506     EL_BD_MAGIC_WALL,
2507     EL_BD_MAGIC_WALL_ACTIVE,
2508     EL_BD_MAGIC_WALL_EMPTYING,
2509     EL_BD_MAGIC_WALL_FULL,
2510     EL_BD_MAGIC_WALL_FILLING,
2511     EL_BD_MAGIC_WALL_DEAD,
2512     EL_GAME_OF_LIFE,
2513     EL_BIOMAZE,
2514     EL_SP_CHIP_SINGLE,
2515     EL_SP_CHIP_LEFT,
2516     EL_SP_CHIP_RIGHT,
2517     EL_SP_CHIP_TOP,
2518     EL_SP_CHIP_BOTTOM,
2519     EL_SP_TERMINAL,
2520     EL_SP_TERMINAL_ACTIVE,
2521     EL_SP_EXIT_CLOSED,
2522     EL_SP_EXIT_OPEN,
2523     EL_INVISIBLE_WALL,
2524     EL_INVISIBLE_WALL_ACTIVE,
2525     EL_SWITCHGATE_SWITCH_UP,
2526     EL_SWITCHGATE_SWITCH_DOWN,
2527     EL_TIMEGATE_SWITCH,
2528     EL_TIMEGATE_SWITCH_ACTIVE,
2529     EL_EMC_WALL_1,
2530     EL_EMC_WALL_2,
2531     EL_EMC_WALL_3,
2532     EL_EMC_WALL_4,
2533     EL_EMC_WALL_5,
2534     EL_EMC_WALL_6,
2535     EL_EMC_WALL_7,
2536     EL_EMC_WALL_8,
2537     EL_WALL_PEARL,
2538     EL_WALL_CRYSTAL,
2539
2540     /* the following elements are a direct copy of "indestructible" elements,
2541        except "EL_ACID", which is "indestructible", but not "solid"! */
2542 #if 0
2543     EL_ACID,
2544 #endif
2545     EL_STEELWALL,
2546     EL_ACID_POOL_TOPLEFT,
2547     EL_ACID_POOL_TOPRIGHT,
2548     EL_ACID_POOL_BOTTOMLEFT,
2549     EL_ACID_POOL_BOTTOM,
2550     EL_ACID_POOL_BOTTOMRIGHT,
2551     EL_SP_HARDWARE_GRAY,
2552     EL_SP_HARDWARE_GREEN,
2553     EL_SP_HARDWARE_BLUE,
2554     EL_SP_HARDWARE_RED,
2555     EL_SP_HARDWARE_YELLOW,
2556     EL_SP_HARDWARE_BASE_1,
2557     EL_SP_HARDWARE_BASE_2,
2558     EL_SP_HARDWARE_BASE_3,
2559     EL_SP_HARDWARE_BASE_4,
2560     EL_SP_HARDWARE_BASE_5,
2561     EL_SP_HARDWARE_BASE_6,
2562     EL_INVISIBLE_STEELWALL,
2563     EL_INVISIBLE_STEELWALL_ACTIVE,
2564     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2565     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2566     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2567     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2568     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2569     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2570     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2571     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2572     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2573     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2574     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2575     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2576     EL_LIGHT_SWITCH,
2577     EL_LIGHT_SWITCH_ACTIVE,
2578     EL_SIGN_EXCLAMATION,
2579     EL_SIGN_RADIOACTIVITY,
2580     EL_SIGN_STOP,
2581     EL_SIGN_WHEELCHAIR,
2582     EL_SIGN_PARKING,
2583     EL_SIGN_ONEWAY,
2584     EL_SIGN_HEART,
2585     EL_SIGN_TRIANGLE,
2586     EL_SIGN_ROUND,
2587     EL_SIGN_EXIT,
2588     EL_SIGN_YINYANG,
2589     EL_SIGN_OTHER,
2590     EL_STEELWALL_SLIPPERY,
2591     EL_EMC_STEELWALL_1,
2592     EL_EMC_STEELWALL_2,
2593     EL_EMC_STEELWALL_3,
2594     EL_EMC_STEELWALL_4,
2595     EL_CRYSTAL,
2596     EL_GATE_1,
2597     EL_GATE_2,
2598     EL_GATE_3,
2599     EL_GATE_4,
2600     EL_GATE_1_GRAY,
2601     EL_GATE_2_GRAY,
2602     EL_GATE_3_GRAY,
2603     EL_GATE_4_GRAY,
2604     EL_EM_GATE_1,
2605     EL_EM_GATE_2,
2606     EL_EM_GATE_3,
2607     EL_EM_GATE_4,
2608     EL_EM_GATE_1_GRAY,
2609     EL_EM_GATE_2_GRAY,
2610     EL_EM_GATE_3_GRAY,
2611     EL_EM_GATE_4_GRAY,
2612     EL_SWITCHGATE_OPEN,
2613     EL_SWITCHGATE_OPENING,
2614     EL_SWITCHGATE_CLOSED,
2615     EL_SWITCHGATE_CLOSING,
2616     EL_TIMEGATE_OPEN,
2617     EL_TIMEGATE_OPENING,
2618     EL_TIMEGATE_CLOSED,
2619     EL_TIMEGATE_CLOSING,
2620     EL_TUBE_ANY,
2621     EL_TUBE_VERTICAL,
2622     EL_TUBE_HORIZONTAL,
2623     EL_TUBE_VERTICAL_LEFT,
2624     EL_TUBE_VERTICAL_RIGHT,
2625     EL_TUBE_HORIZONTAL_UP,
2626     EL_TUBE_HORIZONTAL_DOWN,
2627     EL_TUBE_LEFT_UP,
2628     EL_TUBE_LEFT_DOWN,
2629     EL_TUBE_RIGHT_UP,
2630     EL_TUBE_RIGHT_DOWN,
2631     -1
2632   };
2633
2634   static int ep_classic_enemy[] =
2635   {
2636     EL_BUG,
2637     EL_SPACESHIP,
2638     EL_BD_BUTTERFLY,
2639     EL_BD_FIREFLY,
2640
2641     EL_YAMYAM,
2642     EL_DARK_YAMYAM,
2643     EL_ROBOT,
2644     EL_PACMAN,
2645     EL_SP_SNIKSNAK,
2646     EL_SP_ELECTRON,
2647     -1
2648   };
2649
2650   static int ep_belt[] =
2651   {
2652     EL_CONVEYOR_BELT_1_LEFT,
2653     EL_CONVEYOR_BELT_1_MIDDLE,
2654     EL_CONVEYOR_BELT_1_RIGHT,
2655     EL_CONVEYOR_BELT_2_LEFT,
2656     EL_CONVEYOR_BELT_2_MIDDLE,
2657     EL_CONVEYOR_BELT_2_RIGHT,
2658     EL_CONVEYOR_BELT_3_LEFT,
2659     EL_CONVEYOR_BELT_3_MIDDLE,
2660     EL_CONVEYOR_BELT_3_RIGHT,
2661     EL_CONVEYOR_BELT_4_LEFT,
2662     EL_CONVEYOR_BELT_4_MIDDLE,
2663     EL_CONVEYOR_BELT_4_RIGHT,
2664     -1
2665   };
2666
2667   static int ep_belt_active[] =
2668   {
2669     EL_CONVEYOR_BELT_1_LEFT_ACTIVE,
2670     EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE,
2671     EL_CONVEYOR_BELT_1_RIGHT_ACTIVE,
2672     EL_CONVEYOR_BELT_2_LEFT_ACTIVE,
2673     EL_CONVEYOR_BELT_2_MIDDLE_ACTIVE,
2674     EL_CONVEYOR_BELT_2_RIGHT_ACTIVE,
2675     EL_CONVEYOR_BELT_3_LEFT_ACTIVE,
2676     EL_CONVEYOR_BELT_3_MIDDLE_ACTIVE,
2677     EL_CONVEYOR_BELT_3_RIGHT_ACTIVE,
2678     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
2679     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
2680     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
2681     -1
2682   };
2683
2684   static int ep_belt_switch[] =
2685   {
2686     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2687     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2688     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2689     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2690     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2691     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2692     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2693     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2694     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2695     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2696     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2697     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2698     -1
2699   };
2700
2701   static int ep_tube[] =
2702   {
2703     EL_TUBE_LEFT_UP,
2704     EL_TUBE_LEFT_DOWN,
2705     EL_TUBE_RIGHT_UP,
2706     EL_TUBE_RIGHT_DOWN,
2707     EL_TUBE_HORIZONTAL,
2708     EL_TUBE_HORIZONTAL_UP,
2709     EL_TUBE_HORIZONTAL_DOWN,
2710     EL_TUBE_VERTICAL,
2711     EL_TUBE_VERTICAL_LEFT,
2712     EL_TUBE_VERTICAL_RIGHT,
2713     EL_TUBE_ANY,
2714     -1
2715   };
2716
2717   static int ep_keygate[] =
2718   {
2719     EL_GATE_1,
2720     EL_GATE_2,
2721     EL_GATE_3,
2722     EL_GATE_4,
2723     EL_GATE_1_GRAY,
2724     EL_GATE_2_GRAY,
2725     EL_GATE_3_GRAY,
2726     EL_GATE_4_GRAY,
2727     EL_EM_GATE_1,
2728     EL_EM_GATE_2,
2729     EL_EM_GATE_3,
2730     EL_EM_GATE_4,
2731     EL_EM_GATE_1_GRAY,
2732     EL_EM_GATE_2_GRAY,
2733     EL_EM_GATE_3_GRAY,
2734     EL_EM_GATE_4_GRAY,
2735     -1
2736   };
2737
2738   static int ep_amoeboid[] =
2739   {
2740     EL_AMOEBA_DEAD,
2741     EL_AMOEBA_WET,
2742     EL_AMOEBA_DRY,
2743     EL_AMOEBA_FULL,
2744     EL_BD_AMOEBA,
2745     -1
2746   };
2747
2748   static int ep_amoebalive[] =
2749   {
2750     EL_AMOEBA_WET,
2751     EL_AMOEBA_DRY,
2752     EL_AMOEBA_FULL,
2753     EL_BD_AMOEBA,
2754     -1
2755   };
2756
2757   static int ep_has_content[] =
2758   {
2759     EL_YAMYAM,
2760     EL_AMOEBA_WET,
2761     EL_AMOEBA_DRY,
2762     EL_AMOEBA_FULL,
2763     EL_BD_AMOEBA,
2764     -1
2765   };
2766
2767   static int ep_active_bomb[] =
2768   {
2769     EL_DYNAMITE_ACTIVE,
2770     EL_DYNABOMB_PLAYER_1_ACTIVE,
2771     EL_DYNABOMB_PLAYER_2_ACTIVE,
2772     EL_DYNABOMB_PLAYER_3_ACTIVE,
2773     EL_DYNABOMB_PLAYER_4_ACTIVE,
2774     EL_SP_DISK_RED_ACTIVE,
2775     -1
2776   };
2777
2778   static int ep_inactive[] =
2779   {
2780     EL_EMPTY,
2781     EL_SAND,
2782     EL_WALL,
2783     EL_BD_WALL,
2784     EL_WALL_SLIPPERY,
2785     EL_STEELWALL,
2786     EL_AMOEBA_DEAD,
2787     EL_QUICKSAND_EMPTY,
2788     EL_STONEBLOCK,
2789     EL_ROBOT_WHEEL,
2790     EL_KEY_1,
2791     EL_KEY_2,
2792     EL_KEY_3,
2793     EL_KEY_4,
2794     EL_EM_KEY_1,
2795     EL_EM_KEY_2,
2796     EL_EM_KEY_3,
2797     EL_EM_KEY_4,
2798     EL_GATE_1,
2799     EL_GATE_2,
2800     EL_GATE_3,
2801     EL_GATE_4,
2802     EL_GATE_1_GRAY,
2803     EL_GATE_2_GRAY,
2804     EL_GATE_3_GRAY,
2805     EL_GATE_4_GRAY,
2806     EL_EM_GATE_1,
2807     EL_EM_GATE_2,
2808     EL_EM_GATE_3,
2809     EL_EM_GATE_4,
2810     EL_EM_GATE_1_GRAY,
2811     EL_EM_GATE_2_GRAY,
2812     EL_EM_GATE_3_GRAY,
2813     EL_EM_GATE_4_GRAY,
2814     EL_DYNAMITE,
2815     EL_INVISIBLE_STEELWALL,
2816     EL_INVISIBLE_WALL,
2817     EL_INVISIBLE_SAND,
2818     EL_LAMP,
2819     EL_LAMP_ACTIVE,
2820     EL_WALL_EMERALD,
2821     EL_WALL_DIAMOND,
2822     EL_WALL_BD_DIAMOND,
2823     EL_WALL_EMERALD_YELLOW,
2824     EL_DYNABOMB_INCREASE_NUMBER,
2825     EL_DYNABOMB_INCREASE_SIZE,
2826     EL_DYNABOMB_INCREASE_POWER,
2827 #if 0
2828     EL_SOKOBAN_OBJECT,
2829 #endif
2830     EL_SOKOBAN_FIELD_EMPTY,
2831     EL_SOKOBAN_FIELD_FULL,
2832     EL_WALL_EMERALD_RED,
2833     EL_WALL_EMERALD_PURPLE,
2834     EL_ACID_POOL_TOPLEFT,
2835     EL_ACID_POOL_TOPRIGHT,
2836     EL_ACID_POOL_BOTTOMLEFT,
2837     EL_ACID_POOL_BOTTOM,
2838     EL_ACID_POOL_BOTTOMRIGHT,
2839     EL_MAGIC_WALL,
2840     EL_MAGIC_WALL_DEAD,
2841     EL_BD_MAGIC_WALL,
2842     EL_BD_MAGIC_WALL_DEAD,
2843     EL_AMOEBA_TO_DIAMOND,
2844     EL_BLOCKED,
2845     EL_SP_EMPTY,
2846     EL_SP_BASE,
2847     EL_SP_PORT_RIGHT,
2848     EL_SP_PORT_DOWN,
2849     EL_SP_PORT_LEFT,
2850     EL_SP_PORT_UP,
2851     EL_SP_GRAVITY_PORT_RIGHT,
2852     EL_SP_GRAVITY_PORT_DOWN,
2853     EL_SP_GRAVITY_PORT_LEFT,
2854     EL_SP_GRAVITY_PORT_UP,
2855     EL_SP_PORT_HORIZONTAL,
2856     EL_SP_PORT_VERTICAL,
2857     EL_SP_PORT_ANY,
2858     EL_SP_DISK_RED,
2859 #if 0
2860     EL_SP_DISK_YELLOW,
2861 #endif
2862     EL_SP_CHIP_SINGLE,
2863     EL_SP_CHIP_LEFT,
2864     EL_SP_CHIP_RIGHT,
2865     EL_SP_CHIP_TOP,
2866     EL_SP_CHIP_BOTTOM,
2867     EL_SP_HARDWARE_GRAY,
2868     EL_SP_HARDWARE_GREEN,
2869     EL_SP_HARDWARE_BLUE,
2870     EL_SP_HARDWARE_RED,
2871     EL_SP_HARDWARE_YELLOW,
2872     EL_SP_HARDWARE_BASE_1,
2873     EL_SP_HARDWARE_BASE_2,
2874     EL_SP_HARDWARE_BASE_3,
2875     EL_SP_HARDWARE_BASE_4,
2876     EL_SP_HARDWARE_BASE_5,
2877     EL_SP_HARDWARE_BASE_6,
2878     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2879     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2880     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2881     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2882     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2883     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2884     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2885     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2886     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2887     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2888     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2889     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2890     EL_SIGN_EXCLAMATION,
2891     EL_SIGN_RADIOACTIVITY,
2892     EL_SIGN_STOP,
2893     EL_SIGN_WHEELCHAIR,
2894     EL_SIGN_PARKING,
2895     EL_SIGN_ONEWAY,
2896     EL_SIGN_HEART,
2897     EL_SIGN_TRIANGLE,
2898     EL_SIGN_ROUND,
2899     EL_SIGN_EXIT,
2900     EL_SIGN_YINYANG,
2901     EL_SIGN_OTHER,
2902     EL_STEELWALL_SLIPPERY,
2903     EL_EMC_STEELWALL_1,
2904     EL_EMC_STEELWALL_2,
2905     EL_EMC_STEELWALL_3,
2906     EL_EMC_STEELWALL_4,
2907     EL_EMC_WALL_1,
2908     EL_EMC_WALL_2,
2909     EL_EMC_WALL_3,
2910     EL_EMC_WALL_4,
2911     EL_EMC_WALL_5,
2912     EL_EMC_WALL_6,
2913     EL_EMC_WALL_7,
2914     EL_EMC_WALL_8,
2915     -1
2916   };
2917
2918   static int ep_em_slippery_wall[] =
2919   {
2920     -1
2921   };
2922
2923   static int ep_gfx_crumbled[] =
2924   {
2925     EL_SAND,
2926     EL_LANDMINE,
2927     EL_TRAP,
2928     EL_TRAP_ACTIVE,
2929     -1
2930   };
2931
2932   static struct
2933   {
2934     int *elements;
2935     int property;
2936   } element_properties[] =
2937   {
2938     { ep_diggable,              EP_DIGGABLE             },
2939     { ep_collectible_only,      EP_COLLECTIBLE_ONLY     },
2940     { ep_dont_run_into,         EP_DONT_RUN_INTO        },
2941     { ep_dont_collide_with,     EP_DONT_COLLIDE_WITH    },
2942     { ep_dont_touch,            EP_DONT_TOUCH           },
2943     { ep_indestructible,        EP_INDESTRUCTIBLE       },
2944     { ep_slippery,              EP_SLIPPERY             },
2945     { ep_can_change,            EP_CAN_CHANGE           },
2946     { ep_can_move,              EP_CAN_MOVE             },
2947     { ep_can_fall,              EP_CAN_FALL             },
2948     { ep_can_smash_player,      EP_CAN_SMASH_PLAYER     },
2949     { ep_can_smash_enemies,     EP_CAN_SMASH_ENEMIES    },
2950     { ep_can_smash_everything,  EP_CAN_SMASH_EVERYTHING },
2951     { ep_can_explode_by_fire,   EP_CAN_EXPLODE_BY_FIRE  },
2952     { ep_can_explode_smashed,   EP_CAN_EXPLODE_SMASHED  },
2953     { ep_can_explode_impact,    EP_CAN_EXPLODE_IMPACT   },
2954     { ep_walkable_over,         EP_WALKABLE_OVER        },
2955     { ep_walkable_inside,       EP_WALKABLE_INSIDE      },
2956     { ep_walkable_under,        EP_WALKABLE_UNDER       },
2957     { ep_passable_over,         EP_PASSABLE_OVER        },
2958     { ep_passable_inside,       EP_PASSABLE_INSIDE      },
2959     { ep_passable_under,        EP_PASSABLE_UNDER       },
2960     { ep_droppable,             EP_DROPPABLE            },
2961     { ep_can_explode_1x1,       EP_CAN_EXPLODE_1X1      },
2962     { ep_pushable,              EP_PUSHABLE             },
2963     { ep_can_explode_dyna,      EP_CAN_EXPLODE_DYNA     },
2964     { ep_protected,             EP_PROTECTED            },
2965
2966     { ep_player,                EP_PLAYER               },
2967     { ep_can_pass_magic_wall,   EP_CAN_PASS_MAGIC_WALL  },
2968     { ep_switchable,            EP_SWITCHABLE           },
2969     { ep_bd_element,            EP_BD_ELEMENT           },
2970     { ep_sp_element,            EP_SP_ELEMENT           },
2971     { ep_sb_element,            EP_SB_ELEMENT           },
2972     { ep_gem,                   EP_GEM                  },
2973     { ep_food_dark_yamyam,      EP_FOOD_DARK_YAMYAM     },
2974     { ep_food_penguin,          EP_FOOD_PENGUIN         },
2975     { ep_food_pig,              EP_FOOD_PIG             },
2976     { ep_historic_wall,         EP_HISTORIC_WALL        },
2977     { ep_historic_solid,        EP_HISTORIC_SOLID       },
2978     { ep_classic_enemy,         EP_CLASSIC_ENEMY        },
2979     { ep_belt,                  EP_BELT                 },
2980     { ep_belt_active,           EP_BELT_ACTIVE          },
2981     { ep_belt_switch,           EP_BELT_SWITCH          },
2982     { ep_tube,                  EP_TUBE                 },
2983     { ep_keygate,               EP_KEYGATE              },
2984     { ep_amoeboid,              EP_AMOEBOID             },
2985     { ep_amoebalive,            EP_AMOEBALIVE           },
2986     { ep_has_content,           EP_HAS_CONTENT          },
2987     { ep_active_bomb,           EP_ACTIVE_BOMB          },
2988     { ep_inactive,              EP_INACTIVE             },
2989
2990     { ep_em_slippery_wall,      EP_EM_SLIPPERY_WALL     },
2991
2992     { ep_gfx_crumbled,          EP_GFX_CRUMBLED         },
2993
2994     { NULL,                     -1                      }
2995   };
2996
2997   static int copy_properties[][5] =
2998   {
2999     {
3000       EL_BUG,
3001       EL_BUG_LEFT,              EL_BUG_RIGHT,
3002       EL_BUG_UP,                EL_BUG_DOWN
3003     },
3004     {
3005       EL_SPACESHIP,
3006       EL_SPACESHIP_LEFT,        EL_SPACESHIP_RIGHT,
3007       EL_SPACESHIP_UP,          EL_SPACESHIP_DOWN
3008     },
3009     {
3010       EL_BD_BUTTERFLY,
3011       EL_BD_BUTTERFLY_LEFT,     EL_BD_BUTTERFLY_RIGHT,
3012       EL_BD_BUTTERFLY_UP,       EL_BD_BUTTERFLY_DOWN
3013     },
3014     {
3015       EL_BD_FIREFLY,
3016       EL_BD_FIREFLY_LEFT,       EL_BD_FIREFLY_RIGHT,
3017       EL_BD_FIREFLY_UP,         EL_BD_FIREFLY_DOWN
3018     },
3019     {
3020       EL_PACMAN,
3021       EL_PACMAN_LEFT,           EL_PACMAN_RIGHT,
3022       EL_PACMAN_UP,             EL_PACMAN_DOWN
3023     },
3024     {
3025       EL_MOLE,
3026       EL_MOLE_LEFT,             EL_MOLE_RIGHT,
3027       EL_MOLE_UP,               EL_MOLE_DOWN
3028     },
3029     {
3030       -1,
3031       -1, -1, -1, -1
3032     }
3033   };
3034
3035   int i, j, k;
3036
3037   /* always start with reliable default values (element has no properties) */
3038   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3039     for (j = 0; j < NUM_ELEMENT_PROPERTIES; j++)
3040       SET_PROPERTY(i, j, FALSE);
3041
3042   /* set all base element properties from above array definitions */
3043   for (i = 0; element_properties[i].elements != NULL; i++)
3044     for (j = 0; (element_properties[i].elements)[j] != -1; j++)
3045       SET_PROPERTY((element_properties[i].elements)[j],
3046                    element_properties[i].property, TRUE);
3047
3048   /* copy properties to some elements that are only stored in level file */
3049   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
3050     for (j = 0; copy_properties[j][0] != -1; j++)
3051       if (HAS_PROPERTY(copy_properties[j][0], i))
3052         for (k = 1; k <= 4; k++)
3053           SET_PROPERTY(copy_properties[j][k], i, TRUE);
3054 }
3055
3056 void InitElementPropertiesEngine(int engine_version)
3057 {
3058 #if 0
3059   static int active_properties[] =
3060   {
3061     EP_AMOEBALIVE,
3062     EP_AMOEBOID,
3063     EP_PFORTE,
3064     EP_DONT_COLLIDE_WITH,
3065     EP_MAUER,
3066     EP_CAN_FALL,
3067     EP_CAN_SMASH,
3068     EP_CAN_PASS_MAGIC_WALL,
3069     EP_CAN_MOVE,
3070     EP_DONT_TOUCH,
3071     EP_DONT_RUN_INTO,
3072     EP_GEM,
3073     EP_CAN_EXPLODE_BY_FIRE,
3074     EP_PUSHABLE,
3075     EP_PLAYER,
3076     EP_HAS_CONTENT,
3077     EP_DIGGABLE,
3078     EP_PASSABLE_INSIDE,
3079     EP_OVER_PLAYER,
3080     EP_ACTIVE_BOMB,
3081
3082     EP_BELT,
3083     EP_BELT_ACTIVE,
3084     EP_BELT_SWITCH,
3085     EP_WALKABLE_UNDER,
3086     EP_EM_SLIPPERY_WALL,
3087   };
3088 #endif
3089
3090   static int no_wall_properties[] =
3091   {
3092     EP_DIGGABLE,
3093     EP_COLLECTIBLE_ONLY,
3094     EP_DONT_RUN_INTO,
3095     EP_DONT_COLLIDE_WITH,
3096     EP_CAN_MOVE,
3097     EP_CAN_FALL,
3098     EP_CAN_SMASH_PLAYER,
3099     EP_CAN_SMASH_ENEMIES,
3100     EP_CAN_SMASH_EVERYTHING,
3101     EP_PUSHABLE,
3102
3103     EP_PLAYER,
3104     EP_GEM,
3105     EP_FOOD_DARK_YAMYAM,
3106     EP_FOOD_PENGUIN,
3107     EP_BELT,
3108     EP_BELT_ACTIVE,
3109     EP_TUBE,
3110     EP_AMOEBOID,
3111     EP_AMOEBALIVE,
3112     EP_ACTIVE_BOMB,
3113
3114     EP_ACCESSIBLE,
3115
3116     -1
3117   };
3118
3119   int i, j;
3120
3121 #if 0
3122   InitElementPropertiesStatic();
3123 #endif
3124
3125   /* set all special, combined or engine dependent element properties */
3126   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3127   {
3128 #if 0
3129     for (j = EP_ACCESSIBLE_OVER; j < NUM_ELEMENT_PROPERTIES; j++)
3130       SET_PROPERTY(i, j, FALSE);
3131 #endif
3132
3133     /* ---------- INACTIVE ------------------------------------------------- */
3134     if (i >= EL_CHAR_START && i <= EL_CHAR_END)
3135       SET_PROPERTY(i, EP_INACTIVE, TRUE);
3136
3137     /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
3138     SET_PROPERTY(i, EP_WALKABLE, (IS_WALKABLE_OVER(i) ||
3139                                   IS_WALKABLE_INSIDE(i) ||
3140                                   IS_WALKABLE_UNDER(i)));
3141
3142     SET_PROPERTY(i, EP_PASSABLE, (IS_PASSABLE_OVER(i) ||
3143                                   IS_PASSABLE_INSIDE(i) ||
3144                                   IS_PASSABLE_UNDER(i)));
3145
3146     SET_PROPERTY(i, EP_ACCESSIBLE_OVER, (IS_WALKABLE_OVER(i) ||
3147                                          IS_PASSABLE_OVER(i)));
3148
3149     SET_PROPERTY(i, EP_ACCESSIBLE_INSIDE, (IS_WALKABLE_INSIDE(i) ||
3150                                            IS_PASSABLE_INSIDE(i)));
3151
3152     SET_PROPERTY(i, EP_ACCESSIBLE_UNDER, (IS_WALKABLE_UNDER(i) ||
3153                                           IS_PASSABLE_UNDER(i)));
3154
3155     SET_PROPERTY(i, EP_ACCESSIBLE, (IS_WALKABLE(i) ||
3156                                     IS_PASSABLE(i)));
3157
3158     /* ---------- COLLECTIBLE ---------------------------------------------- */
3159     SET_PROPERTY(i, EP_COLLECTIBLE, (IS_COLLECTIBLE_ONLY(i) ||
3160                                      IS_DROPPABLE(i)));
3161
3162     /* ---------- SNAPPABLE ------------------------------------------------ */
3163     SET_PROPERTY(i, EP_SNAPPABLE, (IS_DIGGABLE(i) ||
3164                                    IS_COLLECTIBLE(i) ||
3165                                    IS_SWITCHABLE(i) ||
3166                                    i == EL_BD_ROCK));
3167
3168     /* ---------- WALL ----------------------------------------------------- */
3169     SET_PROPERTY(i, EP_WALL, TRUE);     /* default: element is wall */
3170
3171     for (j = 0; no_wall_properties[j] != -1; j++)
3172       if (HAS_PROPERTY(i, no_wall_properties[j]) ||
3173           i >= EL_FIRST_RUNTIME_UNREAL)
3174         SET_PROPERTY(i, EP_WALL, FALSE);
3175
3176     if (IS_HISTORIC_WALL(i))
3177       SET_PROPERTY(i, EP_WALL, TRUE);
3178
3179     /* ---------- SOLID_FOR_PUSHING ---------------------------------------- */
3180     if (engine_version < VERSION_IDENT(2,2,0,0))
3181       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, IS_HISTORIC_SOLID(i));
3182     else
3183       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, (!IS_WALKABLE(i) &&
3184                                              !IS_DIGGABLE(i) &&
3185                                              !IS_COLLECTIBLE(i)));
3186
3187     /* ---------- PROTECTED ------------------------------------------------ */
3188     if (IS_ACCESSIBLE_INSIDE(i))
3189       SET_PROPERTY(i, EP_PROTECTED, TRUE);
3190
3191     /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
3192
3193     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
3194       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
3195     else
3196       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, (IS_CUSTOM_ELEMENT(i) &&
3197                                             IS_INDESTRUCTIBLE(i)));
3198
3199     /* ---------- EXPLOSION_PROOF ------------------------------------------ */
3200     if (i == EL_FLAMES)
3201       SET_PROPERTY(i, EP_EXPLOSION_PROOF, TRUE);
3202     else if (engine_version < VERSION_IDENT(2,2,0,0))
3203       SET_PROPERTY(i, EP_EXPLOSION_PROOF, IS_INDESTRUCTIBLE(i));
3204     else
3205 #if 1
3206       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3207                                            (!IS_WALKABLE(i) ||
3208                                             IS_PROTECTED(i))));
3209 #else
3210 #if 1
3211       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3212                                            !IS_WALKABLE_OVER(i) &&
3213                                            !IS_WALKABLE_UNDER(i)));
3214 #else
3215       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
3216                                            IS_PROTECTED(i)));
3217 #endif
3218 #endif
3219
3220     if (IS_CUSTOM_ELEMENT(i))
3221     {
3222       /* ---------- DONT_COLLIDE_WITH / DONT_RUN_INTO ---------------------- */
3223       if (DONT_TOUCH(i))
3224         SET_PROPERTY(i, EP_DONT_COLLIDE_WITH, TRUE);
3225       if (DONT_COLLIDE_WITH(i))
3226         SET_PROPERTY(i, EP_DONT_RUN_INTO, TRUE);
3227
3228       /* ---------- CAN_SMASH_ENEMIES / CAN_SMASH_PLAYER ------------------- */
3229       if (CAN_SMASH_EVERYTHING(i))
3230         SET_PROPERTY(i, EP_CAN_SMASH_ENEMIES, TRUE);
3231       if (CAN_SMASH_ENEMIES(i))
3232         SET_PROPERTY(i, EP_CAN_SMASH_PLAYER, TRUE);
3233     }
3234
3235     /* ---------- CAN_SMASH ------------------------------------------------ */
3236     SET_PROPERTY(i, EP_CAN_SMASH, (CAN_SMASH_PLAYER(i) ||
3237                                    CAN_SMASH_ENEMIES(i) ||
3238                                    CAN_SMASH_EVERYTHING(i)));
3239
3240     /* ---------- CAN_EXPLODE ---------------------------------------------- */
3241     SET_PROPERTY(i, EP_CAN_EXPLODE, (CAN_EXPLODE_BY_FIRE(i) ||
3242                                      CAN_EXPLODE_SMASHED(i) ||
3243                                      CAN_EXPLODE_IMPACT(i)));
3244
3245     /* ---------- CAN_EXPLODE_3X3 ------------------------------------------ */
3246     SET_PROPERTY(i, EP_CAN_EXPLODE_3X3, (CAN_EXPLODE(i) &&
3247                                          !CAN_EXPLODE_1X1(i) &&
3248                                          !CAN_EXPLODE_DYNA(i)));
3249
3250     /* ---------- CAN_EXPLODE_BY_DRAGONFIRE -------------------------------- */
3251     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_DRAGONFIRE, CAN_EXPLODE_BY_FIRE(i));
3252
3253     /* ---------- CAN_EXPLODE_BY_EXPLOSION --------------------------------- */
3254     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_EXPLOSION, (CAN_EXPLODE_BY_FIRE(i) ||
3255                                                   i == EL_BLACK_ORB));
3256
3257     /* ---------- COULD_MOVE_INTO_ACID ------------------------------------- */
3258     SET_PROPERTY(i, EP_COULD_MOVE_INTO_ACID, ((CAN_MOVE(i) && i != EL_SPRING)||
3259                                               IS_CUSTOM_ELEMENT(i)));
3260
3261     /* ---------- CAN_MOVE_INTO_ACID --------------------------------------- */
3262     if (getMoveIntoAcidProperty(&level, i))
3263       SET_PROPERTY(i, EP_CAN_MOVE_INTO_ACID, TRUE);
3264
3265     /* ---------- SP_PORT -------------------------------------------------- */
3266     SET_PROPERTY(i, EP_SP_PORT, (IS_SP_ELEMENT(i) &&
3267                                  IS_PASSABLE_INSIDE(i)));
3268
3269 #if 0
3270     if (i == EL_CUSTOM_START + 253)
3271       printf("::: %d, %d, %d -> %d\n",
3272              CAN_EXPLODE_1X1(i),
3273              CAN_EXPLODE_3X3(i),
3274              CAN_EXPLODE_DYNA(i),
3275              CAN_EXPLODE(i));
3276 #endif
3277
3278     /* ---------- CAN_CHANGE ----------------------------------------------- */
3279     SET_PROPERTY(i, EP_CAN_CHANGE, FALSE);      /* default: cannot change */
3280     for (j = 0; j < element_info[i].num_change_pages; j++)
3281       if (element_info[i].change_page[j].can_change)
3282         SET_PROPERTY(i, EP_CAN_CHANGE, TRUE);
3283
3284     /* ---------- GFX_CRUMBLED --------------------------------------------- */
3285     SET_PROPERTY(i, EP_GFX_CRUMBLED,
3286                  element_info[i].crumbled[ACTION_DEFAULT] != IMG_EMPTY);
3287   }
3288
3289 #if 0
3290   /* determine inactive elements (used for engine main loop optimization) */
3291   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3292   {
3293     boolean active = FALSE;
3294
3295     for (j = 0; i < NUM_ELEMENT_PROPERTIES; j++)
3296     {
3297       if (HAS_PROPERTY(i, j))
3298         active = TRUE;
3299     }
3300
3301 #if 0
3302     if (!active)
3303       SET_PROPERTY(i, EP_INACTIVE, TRUE);
3304 #endif
3305   }
3306 #endif
3307
3308   /* dynamically adjust element properties according to game engine version */
3309   {
3310     static int ep_em_slippery_wall[] =
3311     {
3312       EL_STEELWALL,
3313       EL_WALL,
3314       EL_EXPANDABLE_WALL,
3315       EL_EXPANDABLE_WALL_HORIZONTAL,
3316       EL_EXPANDABLE_WALL_VERTICAL,
3317       EL_EXPANDABLE_WALL_ANY,
3318       -1
3319     };
3320
3321     /* special EM style gems behaviour */
3322     for (i = 0; ep_em_slippery_wall[i] != -1; i++)
3323       SET_PROPERTY(ep_em_slippery_wall[i], EP_EM_SLIPPERY_WALL,
3324                    level.em_slippery_gems);
3325
3326     /* "EL_EXPANDABLE_WALL_GROWING" wasn't slippery for EM gems in 2.0.1 */
3327     SET_PROPERTY(EL_EXPANDABLE_WALL_GROWING, EP_EM_SLIPPERY_WALL,
3328                  (level.em_slippery_gems &&
3329                   engine_version > VERSION_IDENT(2,0,1,0)));
3330   }
3331
3332 #if 1
3333   /* set default push delay values (corrected since version 3.0.7-1) */
3334   if (engine_version < VERSION_IDENT(3,0,7,1))
3335   {
3336     game.default_push_delay_fixed = 2;
3337     game.default_push_delay_random = 8;
3338   }
3339   else
3340   {
3341     game.default_push_delay_fixed = 8;
3342     game.default_push_delay_random = 8;
3343   }
3344
3345   /* set uninitialized push delay values of custom elements in older levels */
3346   for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
3347   {
3348     int element = EL_CUSTOM_START + i;
3349
3350     if (element_info[element].push_delay_fixed == -1)
3351       element_info[element].push_delay_fixed = game.default_push_delay_fixed;
3352     if (element_info[element].push_delay_random == -1)
3353       element_info[element].push_delay_random = game.default_push_delay_random;
3354   }
3355
3356   /* set some other uninitialized values of custom elements in older levels */
3357   if (engine_version < VERSION_IDENT(3,0,9,0))
3358   {
3359     for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
3360     {
3361       int element = EL_CUSTOM_START + i;
3362
3363       element_info[element].access_direction = MV_ALL_DIRECTIONS;
3364
3365       element_info[element].explosion_delay = 18;
3366       element_info[element].ignition_delay = 8;
3367     }
3368   }
3369 #endif
3370
3371   /* this is needed because some graphics depend on element properties */
3372   if (game_status == GAME_MODE_PLAYING)
3373     InitElementGraphicInfo();
3374 }
3375
3376 static void InitGlobal()
3377 {
3378   global.autoplay_leveldir = NULL;
3379
3380   global.frames_per_second = 0;
3381   global.fps_slowdown = FALSE;
3382   global.fps_slowdown_factor = 1;
3383 }
3384
3385 void Execute_Command(char *command)
3386 {
3387   int i;
3388
3389   if (strcmp(command, "print graphicsinfo.conf") == 0)
3390   {
3391     printf("# You can configure additional/alternative image files here.\n");
3392     printf("# (The entries below are default and therefore commented out.)\n");
3393     printf("\n");
3394     printf("%s\n", getFormattedSetupEntry("name", "Classic Graphics"));
3395     printf("\n");
3396     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3397     printf("\n");
3398
3399     for (i = 0; image_config[i].token != NULL; i++)
3400       printf("# %s\n", getFormattedSetupEntry(image_config[i].token,
3401                                               image_config[i].value));
3402
3403     exit(0);
3404   }
3405   else if (strcmp(command, "print soundsinfo.conf") == 0)
3406   {
3407     printf("# You can configure additional/alternative sound files here.\n");
3408     printf("# (The entries below are default and therefore commented out.)\n");
3409     printf("\n");
3410     printf("%s\n", getFormattedSetupEntry("name", "Classic Sounds"));
3411     printf("\n");
3412     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3413     printf("\n");
3414
3415     for (i = 0; sound_config[i].token != NULL; i++)
3416       printf("# %s\n", getFormattedSetupEntry(sound_config[i].token,
3417                                               sound_config[i].value));
3418
3419     exit(0);
3420   }
3421   else if (strcmp(command, "print musicinfo.conf") == 0)
3422   {
3423     printf("# You can configure additional/alternative music files here.\n");
3424     printf("# (The entries below are default and therefore commented out.)\n");
3425     printf("\n");
3426     printf("%s\n", getFormattedSetupEntry("name", "Classic Music"));
3427     printf("\n");
3428     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
3429     printf("\n");
3430
3431     for (i = 0; music_config[i].token != NULL; i++)
3432       printf("# %s\n", getFormattedSetupEntry(music_config[i].token,
3433                                               music_config[i].value));
3434
3435     exit(0);
3436   }
3437   else if (strcmp(command, "print editorsetup.conf") == 0)
3438   {
3439     printf("# You can configure your personal editor element list here.\n");
3440     printf("# (The entries below are default and therefore commented out.)\n");
3441     printf("\n");
3442
3443     PrintEditorElementList();
3444
3445     exit(0);
3446   }
3447   else if (strcmp(command, "print helpanim.conf") == 0)
3448   {
3449     printf("# You can configure different element help animations here.\n");
3450     printf("# (The entries below are default and therefore commented out.)\n");
3451     printf("\n");
3452
3453     for (i = 0; helpanim_config[i].token != NULL; i++)
3454     {
3455       printf("# %s\n", getFormattedSetupEntry(helpanim_config[i].token,
3456                                               helpanim_config[i].value));
3457
3458       if (strcmp(helpanim_config[i].token, "end") == 0)
3459         printf("#\n");
3460     }
3461
3462     exit(0);
3463   }
3464   else if (strcmp(command, "print helptext.conf") == 0)
3465   {
3466     printf("# You can configure different element help text here.\n");
3467     printf("# (The entries below are default and therefore commented out.)\n");
3468     printf("\n");
3469
3470     for (i = 0; helptext_config[i].token != NULL; i++)
3471       printf("# %s\n", getFormattedSetupEntry(helptext_config[i].token,
3472                                               helptext_config[i].value));
3473
3474     exit(0);
3475   }
3476   else if (strncmp(command, "dump level ", 11) == 0)
3477   {
3478     char *filename = &command[11];
3479
3480     if (access(filename, F_OK) != 0)
3481       Error(ERR_EXIT, "cannot open file '%s'", filename);
3482
3483     LoadLevelFromFilename(&level, filename);
3484     DumpLevel(&level);
3485
3486     exit(0);
3487   }
3488   else if (strncmp(command, "dump tape ", 10) == 0)
3489   {
3490     char *filename = &command[10];
3491
3492     if (access(filename, F_OK) != 0)
3493       Error(ERR_EXIT, "cannot open file '%s'", filename);
3494
3495     LoadTapeFromFilename(filename);
3496     DumpTape(&tape);
3497
3498     exit(0);
3499   }
3500   else if (strncmp(command, "autoplay ", 9) == 0)
3501   {
3502     char *str_copy = getStringCopy(&command[9]);
3503     char *str_ptr = strchr(str_copy, ' ');
3504
3505     global.autoplay_leveldir = str_copy;
3506     global.autoplay_level_nr = -1;
3507
3508     if (str_ptr != NULL)
3509     {
3510       *str_ptr++ = '\0';                        /* terminate leveldir string */
3511       global.autoplay_level_nr = atoi(str_ptr); /* get level_nr value */
3512     }
3513   }
3514   else
3515   {
3516     Error(ERR_EXIT_HELP, "unrecognized command '%s'", command);
3517   }
3518 }
3519
3520 static void InitSetup()
3521 {
3522   LoadSetup();                                  /* global setup info */
3523
3524   /* set some options from setup file */
3525
3526   if (setup.options.verbose)
3527     options.verbose = TRUE;
3528 }
3529
3530 static void InitPlayerInfo()
3531 {
3532   int i;
3533
3534   /* choose default local player */
3535   local_player = &stored_player[0];
3536
3537   for (i = 0; i < MAX_PLAYERS; i++)
3538     stored_player[i].connected = FALSE;
3539
3540   local_player->connected = TRUE;
3541 }
3542
3543 static void InitArtworkInfo()
3544 {
3545   LoadArtworkInfo();
3546 }
3547
3548 static char *get_string_in_brackets(char *string)
3549 {
3550   char *string_in_brackets = checked_malloc(strlen(string) + 3);
3551
3552   sprintf(string_in_brackets, "[%s]", string);
3553
3554   return string_in_brackets;
3555 }
3556
3557 static char *get_level_id_suffix(int id_nr)
3558 {
3559   char *id_suffix = checked_malloc(1 + 3 + 1);
3560
3561   if (id_nr < 0 || id_nr > 999)
3562     id_nr = 0;
3563
3564   sprintf(id_suffix, ".%03d", id_nr);
3565
3566   return id_suffix;
3567 }
3568
3569 #if 0
3570 static char *get_element_class_token(int element)
3571 {
3572   char *element_class_name = element_info[element].class_name;
3573   char *element_class_token = checked_malloc(strlen(element_class_name) + 3);
3574
3575   sprintf(element_class_token, "[%s]", element_class_name);
3576
3577   return element_class_token;
3578 }
3579
3580 static char *get_action_class_token(int action)
3581 {
3582   char *action_class_name = &element_action_info[action].suffix[1];
3583   char *action_class_token = checked_malloc(strlen(action_class_name) + 3);
3584
3585   sprintf(action_class_token, "[%s]", action_class_name);
3586
3587   return action_class_token;
3588 }
3589 #endif
3590
3591 static void InitArtworkConfig()
3592 {
3593   static char *image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS + 1];
3594   static char *sound_id_prefix[2 * MAX_NUM_ELEMENTS + 1];
3595   static char *music_id_prefix[NUM_MUSIC_PREFIXES + 1];
3596   static char *action_id_suffix[NUM_ACTIONS + 1];
3597   static char *direction_id_suffix[NUM_DIRECTIONS + 1];
3598   static char *special_id_suffix[NUM_SPECIAL_GFX_ARGS + 1];
3599   static char *level_id_suffix[MAX_LEVELS + 1];
3600   static char *dummy[1] = { NULL };
3601   static char *ignore_generic_tokens[] =
3602   {
3603     "name",
3604     "sort_priority",
3605     NULL
3606   };
3607   static char **ignore_image_tokens;
3608   static char **ignore_sound_tokens;
3609   static char **ignore_music_tokens;
3610   int num_ignore_generic_tokens;
3611   int num_ignore_image_tokens;
3612   int num_ignore_sound_tokens;
3613   int num_ignore_music_tokens;
3614   int i;
3615
3616   /* dynamically determine list of generic tokens to be ignored */
3617   num_ignore_generic_tokens = 0;
3618   for (i = 0; ignore_generic_tokens[i] != NULL; i++)
3619     num_ignore_generic_tokens++;
3620
3621   /* dynamically determine list of image tokens to be ignored */
3622   num_ignore_image_tokens = num_ignore_generic_tokens;
3623   for (i = 0; image_config_vars[i].token != NULL; i++)
3624     num_ignore_image_tokens++;
3625   ignore_image_tokens =
3626     checked_malloc((num_ignore_image_tokens + 1) * sizeof(char *));
3627   for (i = 0; i < num_ignore_generic_tokens; i++)
3628     ignore_image_tokens[i] = ignore_generic_tokens[i];
3629   for (i = 0; i < num_ignore_image_tokens - num_ignore_generic_tokens; i++)
3630     ignore_image_tokens[num_ignore_generic_tokens + i] =
3631       image_config_vars[i].token;
3632   ignore_image_tokens[num_ignore_image_tokens] = NULL;
3633
3634   /* dynamically determine list of sound tokens to be ignored */
3635   num_ignore_sound_tokens = num_ignore_generic_tokens;
3636   ignore_sound_tokens =
3637     checked_malloc((num_ignore_sound_tokens + 1) * sizeof(char *));
3638   for (i = 0; i < num_ignore_generic_tokens; i++)
3639     ignore_sound_tokens[i] = ignore_generic_tokens[i];
3640   ignore_sound_tokens[num_ignore_sound_tokens] = NULL;
3641
3642   /* dynamically determine list of music tokens to be ignored */
3643   num_ignore_music_tokens = num_ignore_generic_tokens;
3644   ignore_music_tokens =
3645     checked_malloc((num_ignore_music_tokens + 1) * sizeof(char *));
3646   for (i = 0; i < num_ignore_generic_tokens; i++)
3647     ignore_music_tokens[i] = ignore_generic_tokens[i];
3648   ignore_music_tokens[num_ignore_music_tokens] = NULL;
3649
3650   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3651     image_id_prefix[i] = element_info[i].token_name;
3652   for (i = 0; i < NUM_FONTS; i++)
3653     image_id_prefix[MAX_NUM_ELEMENTS + i] = font_info[i].token_name;
3654   image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS] = NULL;
3655
3656   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3657     sound_id_prefix[i] = element_info[i].token_name;
3658   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
3659     sound_id_prefix[MAX_NUM_ELEMENTS + i] =
3660       get_string_in_brackets(element_info[i].class_name);
3661   sound_id_prefix[2 * MAX_NUM_ELEMENTS] = NULL;
3662
3663   for (i = 0; i < NUM_MUSIC_PREFIXES; i++)
3664     music_id_prefix[i] = music_prefix_info[i].prefix;
3665   music_id_prefix[MAX_LEVELS] = NULL;
3666
3667   for (i = 0; i < NUM_ACTIONS; i++)
3668     action_id_suffix[i] = element_action_info[i].suffix;
3669   action_id_suffix[NUM_ACTIONS] = NULL;
3670
3671   for (i = 0; i < NUM_DIRECTIONS; i++)
3672     direction_id_suffix[i] = element_direction_info[i].suffix;
3673   direction_id_suffix[NUM_DIRECTIONS] = NULL;
3674
3675   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
3676     special_id_suffix[i] = special_suffix_info[i].suffix;
3677   special_id_suffix[NUM_SPECIAL_GFX_ARGS] = NULL;
3678
3679   for (i = 0; i < MAX_LEVELS; i++)
3680     level_id_suffix[i] = get_level_id_suffix(i);
3681   level_id_suffix[MAX_LEVELS] = NULL;
3682
3683   InitImageList(image_config, NUM_IMAGE_FILES, image_config_suffix,
3684                 image_id_prefix, action_id_suffix, direction_id_suffix,
3685                 special_id_suffix, ignore_image_tokens);
3686   InitSoundList(sound_config, NUM_SOUND_FILES, sound_config_suffix,
3687                 sound_id_prefix, action_id_suffix, dummy,
3688                 special_id_suffix, ignore_sound_tokens);
3689   InitMusicList(music_config, NUM_MUSIC_FILES, music_config_suffix,
3690                 music_id_prefix, special_id_suffix, level_id_suffix,
3691                 dummy, ignore_music_tokens);
3692 }
3693
3694 static void InitMixer()
3695 {
3696   OpenAudio();
3697   StartMixer();
3698 }
3699
3700 void InitGfx()
3701 {
3702   char *filename_font_initial = NULL;
3703   Bitmap *bitmap_font_initial = NULL;
3704   int i, j;
3705
3706   /* determine settings for initial font (for displaying startup messages) */
3707   for (i = 0; image_config[i].token != NULL; i++)
3708   {
3709     for (j = 0; j < NUM_INITIAL_FONTS; j++)
3710     {
3711       char font_token[128];
3712       int len_font_token;
3713
3714       sprintf(font_token, "%s_%d", CONFIG_TOKEN_FONT_INITIAL, j + 1);
3715       len_font_token = strlen(font_token);
3716
3717       if (strcmp(image_config[i].token, font_token) == 0)
3718         filename_font_initial = image_config[i].value;
3719       else if (strlen(image_config[i].token) > len_font_token &&
3720                strncmp(image_config[i].token, font_token, len_font_token) == 0)
3721       {
3722         if (strcmp(&image_config[i].token[len_font_token], ".x") == 0)
3723           font_initial[j].src_x = atoi(image_config[i].value);
3724         else if (strcmp(&image_config[i].token[len_font_token], ".y") == 0)
3725           font_initial[j].src_y = atoi(image_config[i].value);
3726         else if (strcmp(&image_config[i].token[len_font_token], ".width") == 0)
3727           font_initial[j].width = atoi(image_config[i].value);
3728         else if (strcmp(&image_config[i].token[len_font_token],".height") == 0)
3729           font_initial[j].height = atoi(image_config[i].value);
3730       }
3731     }
3732   }
3733
3734   for (j = 0; j < NUM_INITIAL_FONTS; j++)
3735   {
3736     font_initial[j].num_chars = DEFAULT_NUM_CHARS_PER_FONT;
3737     font_initial[j].num_chars_per_line = DEFAULT_NUM_CHARS_PER_LINE;
3738   }
3739
3740   if (filename_font_initial == NULL)    /* should not happen */
3741     Error(ERR_EXIT, "cannot get filename for '%s'", CONFIG_TOKEN_FONT_INITIAL);
3742
3743   /* create additional image buffers for double-buffering */
3744   bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
3745   bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
3746
3747   /* initialize screen properties */
3748   InitGfxFieldInfo(SX, SY, SXSIZE, SYSIZE,
3749                    REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE,
3750                    bitmap_db_field);
3751   InitGfxDoor1Info(DX, DY, DXSIZE, DYSIZE);
3752   InitGfxDoor2Info(VX, VY, VXSIZE, VYSIZE);
3753   InitGfxScrollbufferInfo(FXSIZE, FYSIZE);
3754
3755   bitmap_font_initial = LoadCustomImage(filename_font_initial);
3756
3757   for (j = 0; j < NUM_INITIAL_FONTS; j++)
3758     font_initial[j].bitmap = bitmap_font_initial;
3759
3760   InitFontGraphicInfo();
3761
3762   DrawInitText(getProgramInitString(), 20, FC_YELLOW);
3763   DrawInitText(PROGRAM_COPYRIGHT_STRING, 50, FC_RED);
3764
3765   DrawInitText("Loading graphics:", 120, FC_GREEN);
3766
3767   InitTileClipmasks();
3768 }
3769
3770 void InitGfxBackground()
3771 {
3772   int x, y;
3773
3774   drawto = backbuffer;
3775   fieldbuffer = bitmap_db_field;
3776   SetDrawtoField(DRAW_BACKBUFFER);
3777
3778   BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, backbuffer,
3779              0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
3780   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
3781   ClearRectangle(bitmap_db_door, 0, 0, 3 * DXSIZE, DYSIZE + VYSIZE);
3782
3783   for (x = 0; x < MAX_BUF_XSIZE; x++)
3784     for (y = 0; y < MAX_BUF_YSIZE; y++)
3785       redraw[x][y] = 0;
3786   redraw_tiles = 0;
3787   redraw_mask = REDRAW_ALL;
3788 }
3789
3790 static void InitLevelInfo()
3791 {
3792   LoadLevelInfo();                              /* global level info */
3793   LoadLevelSetup_LastSeries();                  /* last played series info */
3794   LoadLevelSetup_SeriesInfo();                  /* last played level info */
3795 }
3796
3797 void InitLevelArtworkInfo()
3798 {
3799   LoadLevelArtworkInfo();
3800 }
3801
3802 static void InitImages()
3803 {
3804 #if 1
3805   setLevelArtworkDir(artwork.gfx_first);
3806 #endif
3807
3808 #if 0
3809   printf("::: InitImages for '%s' ['%s', '%s'] ['%s', '%s']\n",
3810          leveldir_current->identifier,
3811          artwork.gfx_current_identifier,
3812          artwork.gfx_current->identifier,
3813          leveldir_current->graphics_set,
3814          leveldir_current->graphics_path);
3815 #endif
3816
3817   ReloadCustomImages();
3818
3819   LoadCustomElementDescriptions();
3820   LoadSpecialMenuDesignSettings();
3821
3822   ReinitializeGraphics();
3823 }
3824
3825 static void InitSound(char *identifier)
3826 {
3827   if (identifier == NULL)
3828     identifier = artwork.snd_current->identifier;
3829
3830 #if 1
3831   /* set artwork path to send it to the sound server process */
3832   setLevelArtworkDir(artwork.snd_first);
3833 #endif
3834
3835   InitReloadCustomSounds(identifier);
3836   ReinitializeSounds();
3837 }
3838
3839 static void InitMusic(char *identifier)
3840 {
3841   if (identifier == NULL)
3842     identifier = artwork.mus_current->identifier;
3843
3844 #if 1
3845   /* set artwork path to send it to the sound server process */
3846   setLevelArtworkDir(artwork.mus_first);
3847 #endif
3848
3849   InitReloadCustomMusic(identifier);
3850   ReinitializeMusic();
3851 }
3852
3853 void InitNetworkServer()
3854 {
3855 #if defined(PLATFORM_UNIX)
3856   int nr_wanted;
3857 #endif
3858
3859   if (!options.network)
3860     return;
3861
3862 #if defined(PLATFORM_UNIX)
3863   nr_wanted = Request("Choose player", REQ_PLAYER | REQ_STAY_CLOSED);
3864
3865   if (!ConnectToServer(options.server_host, options.server_port))
3866     Error(ERR_EXIT, "cannot connect to network game server");
3867
3868   SendToServer_PlayerName(setup.player_name);
3869   SendToServer_ProtocolVersion();
3870
3871   if (nr_wanted)
3872     SendToServer_NrWanted(nr_wanted);
3873 #endif
3874 }
3875
3876 static char *getNewArtworkIdentifier(int type)
3877 {
3878   static char *leveldir_current_identifier[3] = { NULL, NULL, NULL };
3879   static boolean last_override_level_artwork[3] = { FALSE, FALSE, FALSE };
3880   static boolean last_has_level_artwork_set[3] = { FALSE, FALSE, FALSE };
3881   static boolean initialized[3] = { FALSE, FALSE, FALSE };
3882   TreeInfo *artwork_first_node = ARTWORK_FIRST_NODE(artwork, type);
3883   boolean setup_override_artwork = SETUP_OVERRIDE_ARTWORK(setup, type);
3884   char *setup_artwork_set = SETUP_ARTWORK_SET(setup, type);
3885   char *leveldir_identifier = leveldir_current->identifier;
3886 #if 1
3887   /* !!! setLevelArtworkDir() should be moved to an earlier stage !!! */
3888   char *leveldir_artwork_set = setLevelArtworkDir(artwork_first_node);
3889 #else
3890   char *leveldir_artwork_set = LEVELDIR_ARTWORK_SET(leveldir_current, type);
3891 #endif
3892   boolean has_level_artwork_set = (leveldir_artwork_set != NULL);
3893   char *artwork_current_identifier;
3894   char *artwork_new_identifier = NULL;  /* default: nothing has changed */
3895
3896   /* leveldir_current may be invalid (level group, parent link) */
3897   if (!validLevelSeries(leveldir_current))
3898     return NULL;
3899
3900   /* 1st step: determine artwork set to be activated in descending order:
3901      --------------------------------------------------------------------
3902      1. setup artwork (when configured to override everything else)
3903      2. artwork set configured in "levelinfo.conf" of current level set
3904         (artwork in level directory will have priority when loading later)
3905      3. artwork in level directory (stored in artwork sub-directory)
3906      4. setup artwork (currently configured in setup menu) */
3907
3908   if (setup_override_artwork)
3909     artwork_current_identifier = setup_artwork_set;
3910   else if (leveldir_artwork_set != NULL)
3911     artwork_current_identifier = leveldir_artwork_set;
3912   else if (getTreeInfoFromIdentifier(artwork_first_node, leveldir_identifier))
3913     artwork_current_identifier = leveldir_identifier;
3914   else
3915     artwork_current_identifier = setup_artwork_set;
3916
3917
3918   /* 2nd step: check if it is really needed to reload artwork set
3919      ------------------------------------------------------------ */
3920
3921 #if 0
3922   if (type == ARTWORK_TYPE_GRAPHICS)
3923     printf("::: 0: '%s' ['%s', '%s'] ['%s' ('%s')]\n",
3924            artwork_new_identifier,
3925            ARTWORK_CURRENT_IDENTIFIER(artwork, type),
3926            artwork_current_identifier,
3927            leveldir_current->graphics_set,
3928            leveldir_current->identifier);
3929 #endif
3930
3931   /* ---------- reload if level set and also artwork set has changed ------- */
3932   if (leveldir_current_identifier[type] != leveldir_identifier &&
3933       (last_has_level_artwork_set[type] || has_level_artwork_set))
3934     artwork_new_identifier = artwork_current_identifier;
3935
3936   leveldir_current_identifier[type] = leveldir_identifier;
3937   last_has_level_artwork_set[type] = has_level_artwork_set;
3938
3939 #if 0
3940   if (type == ARTWORK_TYPE_GRAPHICS)
3941     printf("::: 1: '%s'\n", artwork_new_identifier);
3942 #endif
3943
3944   /* ---------- reload if "override artwork" setting has changed ----------- */
3945   if (last_override_level_artwork[type] != setup_override_artwork)
3946     artwork_new_identifier = artwork_current_identifier;
3947
3948   last_override_level_artwork[type] = setup_override_artwork;
3949
3950 #if 0
3951   if (type == ARTWORK_TYPE_GRAPHICS)
3952     printf("::: 2: '%s'\n", artwork_new_identifier);
3953 #endif
3954
3955   /* ---------- reload if current artwork identifier has changed ----------- */
3956   if (strcmp(ARTWORK_CURRENT_IDENTIFIER(artwork, type),
3957              artwork_current_identifier) != 0)
3958     artwork_new_identifier = artwork_current_identifier;
3959
3960   *(&(ARTWORK_CURRENT_IDENTIFIER(artwork, type))) = artwork_current_identifier;
3961
3962 #if 0
3963   if (type == ARTWORK_TYPE_GRAPHICS)
3964     printf("::: 3: '%s'\n", artwork_new_identifier);
3965 #endif
3966
3967   /* ---------- do not reload directly after starting ---------------------- */
3968   if (!initialized[type])
3969     artwork_new_identifier = NULL;
3970
3971   initialized[type] = TRUE;
3972
3973 #if 0
3974   if (type == ARTWORK_TYPE_GRAPHICS)
3975     printf("::: 4: '%s'\n", artwork_new_identifier);
3976 #endif
3977
3978 #if 0
3979   if (type == ARTWORK_TYPE_GRAPHICS)
3980     printf("CHECKING OLD/NEW GFX:\n- OLD: %s\n- NEW: %s ['%s', '%s'] ['%s']\n",
3981            artwork.gfx_current_identifier, artwork_current_identifier,
3982            artwork.gfx_current->identifier, leveldir_current->graphics_set,
3983            artwork_new_identifier);
3984 #endif
3985
3986   return artwork_new_identifier;
3987 }
3988
3989 void ReloadCustomArtwork(int force_reload)
3990 {
3991   char *gfx_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_GRAPHICS);
3992   char *snd_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_SOUNDS);
3993   char *mus_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_MUSIC);
3994   boolean force_reload_gfx = (force_reload & (1 << ARTWORK_TYPE_GRAPHICS));
3995   boolean force_reload_snd = (force_reload & (1 << ARTWORK_TYPE_SOUNDS));
3996   boolean force_reload_mus = (force_reload & (1 << ARTWORK_TYPE_MUSIC));
3997   boolean redraw_screen = FALSE;
3998
3999   if (gfx_new_identifier != NULL || force_reload_gfx)
4000   {
4001 #if 0
4002     printf("RELOADING GRAPHICS '%s' -> '%s' ['%s', '%s']\n",
4003            artwork.gfx_current_identifier,
4004            gfx_new_identifier,
4005            artwork.gfx_current->identifier,
4006            leveldir_current->graphics_set);
4007 #endif
4008
4009     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4010
4011     InitImages();
4012
4013 #if 0
4014     printf("... '%s'\n",
4015            leveldir_current->graphics_set);
4016 #endif
4017
4018     FreeTileClipmasks();
4019     InitTileClipmasks();
4020
4021     redraw_screen = TRUE;
4022   }
4023
4024   if (snd_new_identifier != NULL || force_reload_snd)
4025   {
4026     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4027
4028     InitSound(snd_new_identifier);
4029
4030     redraw_screen = TRUE;
4031   }
4032
4033   if (mus_new_identifier != NULL || force_reload_mus)
4034   {
4035     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
4036
4037     InitMusic(mus_new_identifier);
4038
4039     redraw_screen = TRUE;
4040   }
4041
4042   if (redraw_screen)
4043   {
4044     InitGfxBackground();
4045
4046     /* force redraw of (open or closed) door graphics */
4047     SetDoorState(DOOR_OPEN_ALL);
4048     CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
4049   }
4050 }
4051
4052 void KeyboardAutoRepeatOffUnlessAutoplay()
4053 {
4054   if (global.autoplay_leveldir == NULL)
4055     KeyboardAutoRepeatOff();
4056 }
4057
4058
4059 /* ========================================================================= */
4060 /* OpenAll()                                                                 */
4061 /* ========================================================================= */
4062
4063 void OpenAll()
4064 {
4065   InitGlobal();         /* initialize some global variables */
4066
4067   if (options.execute_command)
4068     Execute_Command(options.execute_command);
4069
4070   if (options.serveronly)
4071   {
4072 #if defined(PLATFORM_UNIX)
4073     NetworkServer(options.server_port, options.serveronly);
4074 #else
4075     Error(ERR_WARN, "networking only supported in Unix version");
4076 #endif
4077     exit(0);    /* never reached */
4078   }
4079
4080   InitSetup();
4081
4082   InitPlayerInfo();
4083   InitArtworkInfo();            /* needed before loading gfx, sound & music */
4084   InitArtworkConfig();          /* needed before forking sound child process */
4085   InitMixer();
4086
4087   InitCounter();
4088
4089   InitRND(NEW_RANDOMIZE);
4090   InitSimpleRND(NEW_RANDOMIZE);
4091
4092   InitJoysticks();
4093
4094   InitVideoDisplay();
4095   InitVideoBuffer(&backbuffer, &window, WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH,
4096                   setup.fullscreen);
4097
4098   InitEventFilter(FilterMouseMotionEvents);
4099
4100   InitElementPropertiesStatic();
4101   InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
4102
4103   InitGfx();
4104
4105   InitLevelInfo();
4106   InitLevelArtworkInfo();
4107
4108   InitImages();                 /* needs to know current level directory */
4109   InitSound(NULL);              /* needs to know current level directory */
4110   InitMusic(NULL);              /* needs to know current level directory */
4111
4112   InitGfxBackground();
4113
4114   if (global.autoplay_leveldir)
4115   {
4116     AutoPlayTape();
4117     return;
4118   }
4119
4120   game_status = GAME_MODE_MAIN;
4121
4122   DrawMainMenu();
4123
4124   InitNetworkServer();
4125 }
4126
4127 void CloseAllAndExit(int exit_value)
4128 {
4129   StopSounds();
4130   FreeAllSounds();
4131   FreeAllMusic();
4132   CloseAudio();         /* called after freeing sounds (needed for SDL) */
4133
4134   FreeAllImages();
4135   FreeTileClipmasks();
4136
4137   CloseVideoDisplay();
4138   ClosePlatformDependentStuff();
4139
4140   exit(exit_value);
4141 }