rnd-20030426-2-src
[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
28 #include "conf_e2g.c"   /* include auto-generated data structure definitions */
29 #include "conf_esg.c"   /* include auto-generated data structure definitions */
30 #include "conf_e2s.c"   /* include auto-generated data structure definitions */
31 #include "conf_fnt.c"   /* include auto-generated data structure definitions */
32
33
34 #define CONFIG_TOKEN_FONT_INITIAL               "font.initial"
35
36
37 struct FontBitmapInfo font_initial[NUM_INITIAL_FONTS];
38
39
40 static void InitTileClipmasks()
41 {
42 #if 0
43 #if defined(TARGET_X11)
44   XGCValues clip_gc_values;
45   unsigned long clip_gc_valuemask;
46
47 #if defined(TARGET_X11_NATIVE)
48
49 #if 0
50   GC copy_clipmask_gc;
51
52   static struct
53   {
54     int start;
55     int count;
56   }
57   tile_needs_clipping[] =
58   {
59     { GFX_SPIELER1_UP, 4 },
60     { GFX_SPIELER1_DOWN, 4 },
61     { GFX_SPIELER1_LEFT, 4 },
62     { GFX_SPIELER1_RIGHT, 4 },
63     { GFX_SPIELER1_PUSH_LEFT, 4 },
64     { GFX_SPIELER1_PUSH_RIGHT, 4 },
65     { GFX_SPIELER2_UP, 4 },
66     { GFX_SPIELER2_DOWN, 4 },
67     { GFX_SPIELER2_LEFT, 4 },
68     { GFX_SPIELER2_RIGHT, 4 },
69     { GFX_SPIELER2_PUSH_LEFT, 4 },
70     { GFX_SPIELER2_PUSH_RIGHT, 4 },
71     { GFX_SPIELER3_UP, 4 },
72     { GFX_SPIELER3_DOWN, 4 },
73     { GFX_SPIELER3_LEFT, 4 },
74     { GFX_SPIELER3_RIGHT, 4 },
75     { GFX_SPIELER3_PUSH_LEFT, 4 },
76     { GFX_SPIELER3_PUSH_RIGHT, 4 },
77     { GFX_SPIELER4_UP, 4 },
78     { GFX_SPIELER4_DOWN, 4 },
79     { GFX_SPIELER4_LEFT, 4 },
80     { GFX_SPIELER4_RIGHT, 4 },
81     { GFX_SPIELER4_PUSH_LEFT, 4 },
82     { GFX_SPIELER4_PUSH_RIGHT, 4 },
83     { GFX_SP_MURPHY, 1 },
84     { GFX_MURPHY_GO_LEFT, 3 },
85     { GFX_MURPHY_GO_RIGHT, 3 },
86     { GFX_MURPHY_SNAP_UP, 1 },
87     { GFX_MURPHY_SNAP_DOWN, 1 },
88     { GFX_MURPHY_SNAP_RIGHT, 1 },
89     { GFX_MURPHY_SNAP_LEFT, 1 },
90     { GFX_MURPHY_PUSH_RIGHT, 1 },
91     { GFX_MURPHY_PUSH_LEFT, 1 },
92     { GFX_GEBLUBBER, 4 },
93     { GFX_DYNAMIT, 7 },
94     { GFX_DYNABOMB, 4 },
95     { GFX_EXPLOSION, 8 },
96     { GFX_SOKOBAN_OBJEKT, 1 },
97     { GFX_FUNKELN_BLAU, 3 },
98     { GFX_FUNKELN_WEISS, 3 },
99     { GFX2_SHIELD_PASSIVE, 3 },
100     { GFX2_SHIELD_ACTIVE, 3 },
101     { -1, 0 }
102   };
103 #endif
104
105 #endif /* TARGET_X11_NATIVE */
106 #endif /* TARGET_X11 */
107
108   int i;
109
110   /* initialize pixmap array for special X11 tile clipping to Pixmap 'None' */
111   for (i=0; i<NUM_TILES; i++)
112     tile_clipmask[i] = None;
113
114 #if defined(TARGET_X11)
115   /* This stuff is needed because X11 (XSetClipOrigin(), to be precise) is
116      often very slow when preparing a masked XCopyArea() for big Pixmaps.
117      To prevent this, create small (tile-sized) mask Pixmaps which will then
118      be set much faster with XSetClipOrigin() and speed things up a lot. */
119
120   clip_gc_values.graphics_exposures = False;
121   clip_gc_valuemask = GCGraphicsExposures;
122   tile_clip_gc = XCreateGC(display, window->drawable,
123                            clip_gc_valuemask, &clip_gc_values);
124
125 #if 0
126   for (i=0; i<NUM_BITMAPS; i++)
127   {
128     if (pix[i]->clip_mask)
129     {
130       clip_gc_values.graphics_exposures = False;
131       clip_gc_values.clip_mask = pix[i]->clip_mask;
132       clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
133       pix[i]->stored_clip_gc = XCreateGC(display, window->drawable,
134                                          clip_gc_valuemask, &clip_gc_values);
135     }
136   }
137 #endif
138
139 #if defined(TARGET_X11_NATIVE)
140
141 #if 0
142   /* create graphic context structures needed for clipping */
143   clip_gc_values.graphics_exposures = False;
144   clip_gc_valuemask = GCGraphicsExposures;
145   copy_clipmask_gc = XCreateGC(display, pix[PIX_BACK]->clip_mask,
146                                clip_gc_valuemask, &clip_gc_values);
147
148   /* create only those clipping Pixmaps we really need */
149   for (i=0; tile_needs_clipping[i].start>=0; i++)
150   {
151     int j;
152
153     for (j=0; j<tile_needs_clipping[i].count; j++)
154     {
155       int tile = tile_needs_clipping[i].start + j;
156       int graphic = tile;
157       int src_x, src_y;
158       Bitmap *src_bitmap;
159       Pixmap src_pixmap;
160
161       getGraphicSource(graphic, &src_bitmap, &src_x, &src_y);
162       src_pixmap = src_bitmap->clip_mask;
163
164       tile_clipmask[tile] = XCreatePixmap(display, window->drawable,
165                                           TILEX, TILEY, 1);
166
167       XCopyArea(display, src_pixmap, tile_clipmask[tile], copy_clipmask_gc,
168                 src_x, src_y, TILEX, TILEY, 0, 0);
169     }
170   }
171
172   XFreeGC(display, copy_clipmask_gc);
173 #endif
174
175 #endif /* TARGET_X11_NATIVE */
176 #endif /* TARGET_X11 */
177 #endif
178 }
179
180 void FreeTileClipmasks()
181 {
182 #if 0
183 #if defined(TARGET_X11)
184   int i;
185
186   for (i=0; i<NUM_TILES; i++)
187   {
188     if (tile_clipmask[i] != None)
189     {
190       XFreePixmap(display, tile_clipmask[i]);
191       tile_clipmask[i] = None;
192     }
193   }
194
195   if (tile_clip_gc)
196     XFreeGC(display, tile_clip_gc);
197   tile_clip_gc = None;
198
199 #if 0
200   for (i=0; i<NUM_BITMAPS; i++)
201   {
202     if (pix[i] != NULL && pix[i]->stored_clip_gc)
203     {
204       XFreeGC(display, pix[i]->stored_clip_gc);
205       pix[i]->stored_clip_gc = None;
206     }
207   }
208 #endif
209
210 #endif /* TARGET_X11 */
211 #endif
212 }
213
214 void FreeGadgets()
215 {
216   FreeLevelEditorGadgets();
217   FreeGameButtons();
218   FreeTapeButtons();
219   FreeToolButtons();
220   FreeScreenGadgets();
221 }
222
223 void InitGadgets()
224 {
225   static boolean gadgets_initialized = FALSE;
226
227   if (gadgets_initialized)
228     FreeGadgets();
229
230   CreateLevelEditorGadgets();
231   CreateGameButtons();
232   CreateTapeButtons();
233   CreateToolButtons();
234   CreateScreenGadgets();
235
236   gadgets_initialized = TRUE;
237 }
238
239 void InitElementSmallImages()
240 {
241   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
242   int num_property_mappings = getImageListPropertyMappingSize();
243   int i;
244
245   /* initialize normal images from static configuration */
246   for (i=0; element_to_graphic[i].element > -1; i++)
247     CreateImageWithSmallImages(element_to_graphic[i].graphic);
248
249   /* initialize special images from static configuration */
250   for (i=0; element_to_special_graphic[i].element > -1; i++)
251     CreateImageWithSmallImages(element_to_special_graphic[i].graphic);
252
253   /* initialize images from dynamic configuration */
254   for (i=0; i < num_property_mappings; i++)
255     if (property_mapping[i].artwork_index < MAX_NUM_ELEMENTS)
256       CreateImageWithSmallImages(property_mapping[i].artwork_index);
257 }
258
259 static int getFontBitmapID(int font_nr)
260 {
261   int special = -1;
262
263   if (game_status >= GAME_MODE_MAIN && game_status <= GAME_MODE_PSEUDO_PREVIEW)
264     special = game_status;
265   else if (game_status == GAME_MODE_PSEUDO_TYPENAME)
266     special = GFX_SPECIAL_ARG_MAIN;
267   else if (game_status == GAME_MODE_PLAYING)
268     special = GFX_SPECIAL_ARG_DOOR;
269
270   if (special != -1)
271     return font_info[font_nr].special_bitmap_id[special];
272   else
273     return font_nr;
274 }
275
276 void InitFontGraphicInfo()
277 {
278   static struct FontBitmapInfo *font_bitmap_info = NULL;
279   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
280   int num_property_mappings = getImageListPropertyMappingSize();
281   int num_font_bitmaps = NUM_FONTS;
282   int i, j;
283
284   if (graphic_info == NULL)             /* still at startup phase */
285   {
286     InitFontInfo(font_initial, NUM_INITIAL_FONTS, getFontBitmapID);
287
288     return;
289   }
290
291   /* ---------- initialize font graphic definitions ---------- */
292
293   /* always start with reliable default values (normal font graphics) */
294   for (i=0; i < NUM_FONTS; i++)
295     font_info[i].graphic = FONT_INITIAL_1;
296
297   /* initialize normal font/graphic mapping from static configuration */
298   for (i=0; font_to_graphic[i].font_nr > -1; i++)
299   {
300     int font_nr = font_to_graphic[i].font_nr;
301     int special = font_to_graphic[i].special;
302     int graphic = font_to_graphic[i].graphic;
303
304     if (special != -1)
305       continue;
306
307     font_info[font_nr].graphic = graphic;
308   }
309
310   /* always start with reliable default values (special font graphics) */
311   for (i=0; i < NUM_FONTS; i++)
312   {
313     for (j=0; j < NUM_SPECIAL_GFX_ARGS; j++)
314     {
315       font_info[i].special_graphic[j] = font_info[i].graphic;
316       font_info[i].special_bitmap_id[j] = i;
317     }
318   }
319
320   /* initialize special font/graphic mapping from static configuration */
321   for (i=0; font_to_graphic[i].font_nr > -1; i++)
322   {
323     int font_nr = font_to_graphic[i].font_nr;
324     int special = font_to_graphic[i].special;
325     int graphic = font_to_graphic[i].graphic;
326
327     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
328     {
329       font_info[font_nr].special_graphic[special] = graphic;
330       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
331       num_font_bitmaps++;
332     }
333   }
334
335   /* initialize special element/graphic mapping from dynamic configuration */
336   for (i=0; i < num_property_mappings; i++)
337   {
338     int font_nr = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
339     int special = property_mapping[i].ext3_index;
340     int graphic = property_mapping[i].artwork_index;
341
342     if (font_nr < 0)
343       continue;
344
345     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
346     {
347       font_info[font_nr].special_graphic[special] = graphic;
348       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
349       num_font_bitmaps++;
350     }
351   }
352
353   /* ---------- initialize font bitmap array ---------- */
354
355   if (font_bitmap_info != NULL)
356     FreeFontInfo(font_bitmap_info);
357
358   font_bitmap_info =
359     checked_calloc(num_font_bitmaps * sizeof(struct FontBitmapInfo));
360
361   /* ---------- initialize font bitmap definitions ---------- */
362
363   for (i=0; i < NUM_FONTS; i++)
364   {
365     if (i < NUM_INITIAL_FONTS)
366     {
367       font_bitmap_info[i] = font_initial[i];
368       continue;
369     }
370
371     for (j=0; j < NUM_SPECIAL_GFX_ARGS; j++)
372     {
373       int font_bitmap_id = font_info[i].special_bitmap_id[j];
374       int graphic = font_info[i].special_graphic[j];
375
376       /* set 'graphic_info' for font entries, if uninitialized (guessed) */
377       if (graphic_info[graphic].anim_frames < MIN_NUM_CHARS_PER_FONT)
378       {
379         graphic_info[graphic].anim_frames = DEFAULT_NUM_CHARS_PER_FONT;
380         graphic_info[graphic].anim_frames_per_line= DEFAULT_NUM_CHARS_PER_LINE;
381       }
382
383       /* copy font relevant information from graphics information */
384       font_bitmap_info[font_bitmap_id].bitmap = graphic_info[graphic].bitmap;
385       font_bitmap_info[font_bitmap_id].src_x  = graphic_info[graphic].src_x;
386       font_bitmap_info[font_bitmap_id].src_y  = graphic_info[graphic].src_y;
387       font_bitmap_info[font_bitmap_id].width  = graphic_info[graphic].width;
388       font_bitmap_info[font_bitmap_id].height = graphic_info[graphic].height;
389       font_bitmap_info[font_bitmap_id].draw_x = graphic_info[graphic].draw_x;
390       font_bitmap_info[font_bitmap_id].draw_y = graphic_info[graphic].draw_y;
391
392       font_bitmap_info[font_bitmap_id].num_chars =
393         graphic_info[graphic].anim_frames;
394       font_bitmap_info[font_bitmap_id].num_chars_per_line =
395         graphic_info[graphic].anim_frames_per_line;
396     }
397   }
398
399   InitFontInfo(font_bitmap_info, num_font_bitmaps, getFontBitmapID);
400 }
401
402 void InitElementGraphicInfo()
403 {
404   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
405   int num_property_mappings = getImageListPropertyMappingSize();
406   int i, act, dir;
407
408   /* set values to -1 to identify later as "uninitialized" values */
409   for (i=0; i<MAX_NUM_ELEMENTS; i++)
410   {
411     for (act=0; act<NUM_ACTIONS; act++)
412     {
413       element_info[i].graphic[act] = -1;
414
415       for (dir=0; dir<NUM_DIRECTIONS; dir++)
416         element_info[i].direction_graphic[act][dir] = -1;
417     }
418   }
419
420   /* initialize normal element/graphic mapping from static configuration */
421   for (i=0; element_to_graphic[i].element > -1; i++)
422   {
423     int element   = element_to_graphic[i].element;
424     int action    = element_to_graphic[i].action;
425     int direction = element_to_graphic[i].direction;
426     int graphic   = element_to_graphic[i].graphic;
427
428     if (graphic_info[graphic].bitmap == NULL)
429       continue;
430
431     if (action < 0)
432       action = ACTION_DEFAULT;
433
434     if (direction > -1)
435       element_info[element].direction_graphic[action][direction] = graphic;
436     else
437       element_info[element].graphic[action] = graphic;
438   }
439
440   /* initialize normal element/graphic mapping from dynamic configuration */
441   for (i=0; i < num_property_mappings; i++)
442   {
443     int element   = property_mapping[i].base_index;
444     int action    = property_mapping[i].ext1_index;
445     int direction = property_mapping[i].ext2_index;
446     int special   = property_mapping[i].ext3_index;
447     int graphic   = property_mapping[i].artwork_index;
448
449     if (graphic_info[graphic].bitmap == NULL)
450       continue;
451
452     if (element >= MAX_NUM_ELEMENTS || special != -1)
453       continue;
454
455     if (action < 0)
456       action = ACTION_DEFAULT;
457
458     if (direction > -1)
459       element_info[element].direction_graphic[action][direction] = graphic;
460     else
461       element_info[element].graphic[action] = graphic;
462   }
463
464   /* now set all '-1' values to element specific default values */
465   for (i=0; i<MAX_NUM_ELEMENTS; i++)
466   {
467     int default_action_graphic = element_info[i].graphic[ACTION_DEFAULT];
468     int default_action_direction_graphic[NUM_DIRECTIONS];
469
470     if (default_action_graphic == -1)
471       default_action_graphic = IMG_CHAR_QUESTION;
472
473     for (dir=0; dir<NUM_DIRECTIONS; dir++)
474     {
475       default_action_direction_graphic[dir] =
476         element_info[i].direction_graphic[ACTION_DEFAULT][dir];
477
478       if (default_action_direction_graphic[dir] == -1)
479         default_action_direction_graphic[dir] = default_action_graphic;
480     }
481
482     for (act=0; act<NUM_ACTIONS; act++)
483     {
484       boolean act_empty = (act == ACTION_DIGGING ||
485                            act == ACTION_SNAPPING ||
486                            act == ACTION_COLLECTING);
487
488       for (dir=0; dir<NUM_DIRECTIONS; dir++)
489       {
490         int default_direction_graphic = element_info[i].graphic[act];
491
492         /* no graphic for current action -- use default direction graphic */
493         if (default_direction_graphic == -1)
494           default_direction_graphic =
495             (act_empty ? IMG_EMPTY : default_action_direction_graphic[dir]);
496
497         if (element_info[i].direction_graphic[act][dir] == -1)
498           element_info[i].direction_graphic[act][dir] =
499             default_direction_graphic;
500       }
501
502       /* no graphic for this specific action -- use default action graphic */
503       if (element_info[i].graphic[act] == -1)
504         element_info[i].graphic[act] =
505           (act_empty ? IMG_EMPTY : default_action_graphic);
506     }
507   }
508
509 #if 0
510 #if DEBUG
511   if (options.verbose)
512   {
513     for (i=0; i<MAX_NUM_ELEMENTS; i++)
514       if (element_info[i].graphic[ACTION_DEFAULT] == IMG_CHAR_QUESTION &&
515           i != EL_CHAR_QUESTION)
516         Error(ERR_RETURN, "warning: no graphic for element '%s' (%d)",
517               element_info[i].token_name, i);
518   }
519 #endif
520 #endif
521 }
522
523 void InitElementSpecialGraphicInfo()
524 {
525   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
526   int num_property_mappings = getImageListPropertyMappingSize();
527   int i, j;
528
529   /* always start with reliable default values */
530   for (i=0; i < MAX_NUM_ELEMENTS; i++)
531     for (j=0; j < NUM_SPECIAL_GFX_ARGS; j++)
532       element_info[i].special_graphic[j] =
533         element_info[i].graphic[ACTION_DEFAULT];
534
535   /* initialize special element/graphic mapping from static configuration */
536   for (i=0; element_to_special_graphic[i].element > -1; i++)
537   {
538     int element = element_to_special_graphic[i].element;
539     int special = element_to_special_graphic[i].special;
540     int graphic = element_to_special_graphic[i].graphic;
541     boolean base_redefined = getImageListEntry(el2img(element))->redefined;
542     boolean special_redefined = getImageListEntry(graphic)->redefined;
543
544     if (base_redefined && !special_redefined)
545       continue;
546
547     element_info[element].special_graphic[special] = graphic;
548   }
549
550   /* initialize special element/graphic mapping from dynamic configuration */
551   for (i=0; i < num_property_mappings; i++)
552   {
553     int element = property_mapping[i].base_index;
554     int special = property_mapping[i].ext3_index;
555     int graphic = property_mapping[i].artwork_index;
556
557     if (element >= MAX_NUM_ELEMENTS)
558       continue;
559
560     if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
561       element_info[element].special_graphic[special] = graphic;
562   }
563 }
564
565 static void set_graphic_parameters(int graphic, char **parameter_raw)
566 {
567   Bitmap *src_bitmap = getBitmapFromImageID(graphic);
568   int parameter[NUM_GFX_ARGS];
569   int anim_frames_per_row = 1, anim_frames_per_col = 1;
570   int anim_frames_per_line = 1;
571   int i;
572
573   /* get integer values from string parameters */
574   for (i=0; i < NUM_GFX_ARGS; i++)
575     parameter[i] =
576       get_parameter_value(image_config_suffix[i].token, parameter_raw[i],
577                           image_config_suffix[i].type);
578
579   graphic_info[graphic].bitmap = src_bitmap;
580
581   /* start with reliable default values */
582   graphic_info[graphic].src_x = 0;
583   graphic_info[graphic].src_y = 0;
584   graphic_info[graphic].width = TILEX;
585   graphic_info[graphic].height = TILEY;
586   graphic_info[graphic].offset_x = 0;   /* one or both of these values ... */
587   graphic_info[graphic].offset_y = 0;   /* ... will be corrected later */
588
589   /* optional x and y tile position of animation frame sequence */
590   if (parameter[GFX_ARG_XPOS] != ARG_UNDEFINED_VALUE)
591     graphic_info[graphic].src_x = parameter[GFX_ARG_XPOS] * TILEX;
592   if (parameter[GFX_ARG_YPOS] != ARG_UNDEFINED_VALUE)
593     graphic_info[graphic].src_y = parameter[GFX_ARG_YPOS] * TILEY;
594
595   /* optional x and y pixel position of animation frame sequence */
596   if (parameter[GFX_ARG_X] != ARG_UNDEFINED_VALUE)
597     graphic_info[graphic].src_x = parameter[GFX_ARG_X];
598   if (parameter[GFX_ARG_Y] != ARG_UNDEFINED_VALUE)
599     graphic_info[graphic].src_y = parameter[GFX_ARG_Y];
600
601   /* optional width and height of each animation frame */
602   if (parameter[GFX_ARG_WIDTH] != ARG_UNDEFINED_VALUE)
603     graphic_info[graphic].width = parameter[GFX_ARG_WIDTH];
604   if (parameter[GFX_ARG_HEIGHT] != ARG_UNDEFINED_VALUE)
605     graphic_info[graphic].height = parameter[GFX_ARG_HEIGHT];
606
607   if (src_bitmap)
608   {
609     anim_frames_per_row = src_bitmap->width  / graphic_info[graphic].width;
610     anim_frames_per_col = src_bitmap->height / graphic_info[graphic].height;
611   }
612
613   /* correct x or y offset dependant of vertical or horizontal frame order */
614   if (parameter[GFX_ARG_VERTICAL])      /* frames are ordered vertically */
615   {
616     graphic_info[graphic].offset_y =
617       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
618        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].height);
619     anim_frames_per_line = anim_frames_per_col;
620   }
621   else                                  /* frames are ordered horizontally */
622   {
623     graphic_info[graphic].offset_x =
624       (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
625        parameter[GFX_ARG_OFFSET] : graphic_info[graphic].width);
626     anim_frames_per_line = anim_frames_per_row;
627   }
628
629   /* optionally, the x and y offset of frames can be specified directly */
630   if (parameter[GFX_ARG_XOFFSET] != ARG_UNDEFINED_VALUE)
631     graphic_info[graphic].offset_x = parameter[GFX_ARG_XOFFSET];
632   if (parameter[GFX_ARG_YOFFSET] != ARG_UNDEFINED_VALUE)
633     graphic_info[graphic].offset_y = parameter[GFX_ARG_YOFFSET];
634
635   /* automatically determine correct number of frames, if not defined */
636   if (parameter[GFX_ARG_FRAMES] != ARG_UNDEFINED_VALUE)
637     graphic_info[graphic].anim_frames = parameter[GFX_ARG_FRAMES];
638   else if (parameter[GFX_ARG_XPOS] == 0 && !parameter[GFX_ARG_VERTICAL])
639     graphic_info[graphic].anim_frames = anim_frames_per_row;
640   else if (parameter[GFX_ARG_YPOS] == 0 && parameter[GFX_ARG_VERTICAL])
641     graphic_info[graphic].anim_frames = anim_frames_per_col;
642   else
643     graphic_info[graphic].anim_frames = 1;
644
645   graphic_info[graphic].anim_frames_per_line =
646     (parameter[GFX_ARG_FRAMES_PER_LINE] != ARG_UNDEFINED_VALUE ?
647      parameter[GFX_ARG_FRAMES_PER_LINE] : anim_frames_per_line);
648
649   graphic_info[graphic].anim_delay = parameter[GFX_ARG_DELAY];
650   if (graphic_info[graphic].anim_delay == 0)    /* delay must be at least 1 */
651     graphic_info[graphic].anim_delay = 1;
652
653   graphic_info[graphic].anim_mode = parameter[GFX_ARG_ANIM_MODE];
654   if (graphic_info[graphic].anim_frames == 1)
655     graphic_info[graphic].anim_mode = ANIM_NONE;
656
657   /* automatically determine correct start frame, if not defined */
658   if (parameter[GFX_ARG_START_FRAME] == ARG_UNDEFINED_VALUE)
659     graphic_info[graphic].anim_start_frame = 0;
660   else if (graphic_info[graphic].anim_mode & ANIM_REVERSE)
661     graphic_info[graphic].anim_start_frame =
662       graphic_info[graphic].anim_frames - parameter[GFX_ARG_START_FRAME] - 1;
663   else
664     graphic_info[graphic].anim_start_frame = parameter[GFX_ARG_START_FRAME];
665
666   /* animation synchronized with global frame counter, not move position */
667   graphic_info[graphic].anim_global_sync = parameter[GFX_ARG_GLOBAL_SYNC];
668
669   /* this is only used for toon animations */
670   graphic_info[graphic].step_offset = parameter[GFX_ARG_STEP_OFFSET];
671   graphic_info[graphic].step_delay  = parameter[GFX_ARG_STEP_DELAY];
672
673   /* this is only used for drawing font characters */
674   graphic_info[graphic].draw_x = parameter[GFX_ARG_DRAW_XOFFSET];
675   graphic_info[graphic].draw_y = parameter[GFX_ARG_DRAW_YOFFSET];
676 }
677
678 static void InitGraphicInfo()
679 {
680   int fallback_graphic = IMG_CHAR_EXCLAM;
681   struct FileInfo *fallback_image = getImageListEntry(fallback_graphic);
682   Bitmap *fallback_bitmap = getBitmapFromImageID(fallback_graphic);
683   int num_images = getImageListSize();
684   int i;
685
686 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
687   static boolean clipmasks_initialized = FALSE;
688   Pixmap src_pixmap;
689   XGCValues clip_gc_values;
690   unsigned long clip_gc_valuemask;
691   GC copy_clipmask_gc = None;
692 #endif
693
694   if (graphic_info != NULL)
695     free(graphic_info);
696
697   graphic_info = checked_calloc(num_images * sizeof(struct GraphicInfo));
698
699 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
700   if (clipmasks_initialized)
701   {
702     for (i=0; i<num_images; i++)
703     {
704       if (graphic_info[i].clip_mask)
705         XFreePixmap(display, graphic_info[i].clip_mask);
706       if (graphic_info[i].clip_gc)
707         XFreeGC(display, graphic_info[i].clip_gc);
708
709       graphic_info[i].clip_mask = None;
710       graphic_info[i].clip_gc = None;
711     }
712   }
713 #endif
714
715   for (i=0; i<num_images; i++)
716   {
717     struct FileInfo *image = getImageListEntry(i);
718     Bitmap *src_bitmap;
719     int src_x, src_y;
720     int first_frame, last_frame;
721
722     set_graphic_parameters(i, image->parameter);
723
724     /* now check if no animation frames are outside of the loaded image */
725
726     if (graphic_info[i].bitmap == NULL)
727       continue;         /* skip check for optional images that are undefined */
728
729     first_frame = 0;
730     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
731     if (src_x < 0 || src_y < 0 ||
732         src_x + TILEX > src_bitmap->width ||
733         src_y + TILEY > src_bitmap->height)
734     {
735       Error(ERR_RETURN_LINE, "-");
736       Error(ERR_RETURN, "warning: error found in config file:");
737       Error(ERR_RETURN, "- config file: '%s'",
738             getImageConfigFilename());
739       Error(ERR_RETURN, "- config token: '%s'",
740             getTokenFromImageID(i));
741       Error(ERR_RETURN, "- image file: '%s'",
742             src_bitmap->source_filename);
743       Error(ERR_RETURN,
744             "error: first animation frame out of bounds (%d, %d)",
745             src_x, src_y);
746       Error(ERR_RETURN, "custom graphic rejected for this element/action");
747
748       if (i == fallback_graphic)
749         Error(ERR_EXIT, "fatal error: no fallback graphic available");
750
751       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
752       Error(ERR_RETURN_LINE, "-");
753
754       set_graphic_parameters(i, fallback_image->default_parameter);
755       graphic_info[i].bitmap = fallback_bitmap;
756     }
757
758     last_frame = graphic_info[i].anim_frames - 1;
759     getGraphicSource(i, last_frame, &src_bitmap, &src_x, &src_y);
760     if (src_x < 0 || src_y < 0 ||
761         src_x + TILEX > src_bitmap->width ||
762         src_y + TILEY > src_bitmap->height)
763     {
764       Error(ERR_RETURN_LINE, "-");
765       Error(ERR_RETURN, "warning: error found in config file:");
766       Error(ERR_RETURN, "- config file: '%s'",
767             getImageConfigFilename());
768       Error(ERR_RETURN, "- config token: '%s'",
769             getTokenFromImageID(i));
770       Error(ERR_RETURN, "- image file: '%s'",
771             src_bitmap->source_filename);
772       Error(ERR_RETURN,
773             "error: last animation frame (%d) out of bounds (%d, %d)",
774             last_frame, src_x, src_y);
775       Error(ERR_RETURN, "custom graphic rejected for this element/action");
776
777       if (i == fallback_graphic)
778         Error(ERR_EXIT, "fatal error: no fallback graphic available");
779
780       Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
781       Error(ERR_RETURN_LINE, "-");
782
783       set_graphic_parameters(i, fallback_image->default_parameter);
784       graphic_info[i].bitmap = fallback_bitmap;
785     }
786
787 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
788     /* currently we need only a tile clip mask from the first frame */
789     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
790
791     if (copy_clipmask_gc == None)
792     {
793       clip_gc_values.graphics_exposures = False;
794       clip_gc_valuemask = GCGraphicsExposures;
795       copy_clipmask_gc = XCreateGC(display, src_bitmap->clip_mask,
796                                    clip_gc_valuemask, &clip_gc_values);
797     }
798
799     graphic_info[i].clip_mask =
800       XCreatePixmap(display, window->drawable, TILEX, TILEY, 1);
801
802     src_pixmap = src_bitmap->clip_mask;
803     XCopyArea(display, src_pixmap, graphic_info[i].clip_mask,
804               copy_clipmask_gc, src_x, src_y, TILEX, TILEY, 0, 0);
805
806     clip_gc_values.graphics_exposures = False;
807     clip_gc_values.clip_mask = graphic_info[i].clip_mask;
808     clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
809
810     graphic_info[i].clip_gc =
811       XCreateGC(display, window->drawable, clip_gc_valuemask, &clip_gc_values);
812 #endif
813   }
814
815 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
816   if (copy_clipmask_gc)
817     XFreeGC(display, copy_clipmask_gc);
818
819   clipmasks_initialized = TRUE;
820 #endif
821 }
822
823 static void InitElementSoundInfo()
824 {
825   struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
826   int num_property_mappings = getSoundListPropertyMappingSize();
827   int i, j, act;
828
829   /* set values to -1 to identify later as "uninitialized" values */
830   for (i=0; i < MAX_NUM_ELEMENTS; i++)
831     for (act=0; act < NUM_ACTIONS; act++)
832       element_info[i].sound[act] = -1;
833
834   /* initialize element/sound mapping from static configuration */
835   for (i=0; element_to_sound[i].element > -1; i++)
836   {
837     int element      = element_to_sound[i].element;
838     int action       = element_to_sound[i].action;
839     int sound        = element_to_sound[i].sound;
840     boolean is_class = element_to_sound[i].is_class;
841
842     if (action < 0)
843       action = ACTION_DEFAULT;
844
845     if (!is_class)
846       element_info[element].sound[action] = sound;
847     else
848       for (j=0; j < MAX_NUM_ELEMENTS; j++)
849         if (strcmp(element_info[j].class_name,
850                    element_info[element].class_name) == 0)
851           element_info[j].sound[action] = sound;
852   }
853
854   /* initialize element/sound mapping from dynamic configuration */
855   for (i=0; i < num_property_mappings; i++)
856   {
857     int element = property_mapping[i].base_index;
858     int action  = property_mapping[i].ext1_index;
859     int sound   = property_mapping[i].artwork_index;
860
861     if (element >= MAX_NUM_ELEMENTS)
862       continue;
863
864     if (action < 0)
865       action = ACTION_DEFAULT;
866
867     element_info[element].sound[action] = sound;
868   }
869
870   /* initialize element class/sound mapping from dynamic configuration */
871   for (i=0; i < num_property_mappings; i++)
872   {
873     int element_class = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
874     int action        = property_mapping[i].ext1_index;
875     int sound         = property_mapping[i].artwork_index;
876
877     if (element_class < 0 || element_class >= MAX_NUM_ELEMENTS)
878       continue;
879
880     if (action < 0)
881       action = ACTION_DEFAULT;
882
883     for (j=0; j < MAX_NUM_ELEMENTS; j++)
884       if (strcmp(element_info[j].class_name,
885                  element_info[element_class].class_name) == 0)
886         element_info[j].sound[action] = sound;
887   }
888
889   /* now set all '-1' values to element specific default values */
890   for (i=0; i<MAX_NUM_ELEMENTS; i++)
891   {
892     int default_action_sound = element_info[i].sound[ACTION_DEFAULT];
893
894     for (act=0; act < NUM_ACTIONS; act++)
895     {
896       /* no sound for this specific action -- use default action sound */
897       if (element_info[i].sound[act] == -1)
898         element_info[i].sound[act] = default_action_sound;
899     }
900   }
901 }
902
903 static void set_sound_parameters(int sound, char **parameter_raw)
904 {
905   int parameter[NUM_SND_ARGS];
906   int i;
907
908   /* get integer values from string parameters */
909   for (i=0; i < NUM_SND_ARGS; i++)
910     parameter[i] =
911       get_parameter_value(sound_config_suffix[i].token, parameter_raw[i],
912                           sound_config_suffix[i].type);
913
914   /* explicit loop mode setting in configuration overrides default value */
915   if (parameter[SND_ARG_MODE_LOOP] != ARG_UNDEFINED_VALUE)
916     sound_info[sound].loop = parameter[SND_ARG_MODE_LOOP];
917 }
918
919 static void InitSoundInfo()
920 {
921   struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
922   int num_property_mappings = getSoundListPropertyMappingSize();
923   int *sound_effect_properties;
924   int num_sounds = getSoundListSize();
925   int i, j;
926
927   if (sound_info != NULL)
928     free(sound_info);
929
930   sound_effect_properties = checked_calloc(num_sounds * sizeof(int));
931   sound_info = checked_calloc(num_sounds * sizeof(struct SoundInfo));
932
933   /* initialize sound effect for all elements to "no sound" */
934   for (i=0; i<MAX_NUM_ELEMENTS; i++)
935     for (j=0; j<NUM_ACTIONS; j++)
936       element_info[i].sound[j] = SND_UNDEFINED;
937
938   for (i=0; i<num_sounds; i++)
939   {
940     struct FileInfo *sound = getSoundListEntry(i);
941     int len_effect_text = strlen(sound->token);
942
943     sound_effect_properties[i] = ACTION_OTHER;
944     sound_info[i].loop = FALSE;
945
946     /* determine all loop sounds and identify certain sound classes */
947
948     for (j=0; element_action_info[j].suffix; j++)
949     {
950       int len_action_text = strlen(element_action_info[j].suffix);
951
952       if (len_action_text < len_effect_text &&
953           strcmp(&sound->token[len_effect_text - len_action_text],
954                  element_action_info[j].suffix) == 0)
955       {
956         sound_effect_properties[i] = element_action_info[j].value;
957
958         if (element_action_info[j].is_loop_sound)
959           sound_info[i].loop = TRUE;
960       }
961     }
962
963     /* associate elements and some selected sound actions */
964
965     for (j=0; j<MAX_NUM_ELEMENTS; j++)
966     {
967       if (element_info[j].class_name)
968       {
969         int len_class_text = strlen(element_info[j].class_name);
970
971         if (len_class_text + 1 < len_effect_text &&
972             strncmp(sound->token,
973                     element_info[j].class_name, len_class_text) == 0 &&
974             sound->token[len_class_text] == '.')
975         {
976           int sound_action_value = sound_effect_properties[i];
977
978           element_info[j].sound[sound_action_value] = i;
979         }
980       }
981     }
982
983     set_sound_parameters(i, sound->parameter);
984   }
985
986   free(sound_effect_properties);
987
988   /* initialize element/sound mapping from dynamic configuration */
989   for (i=0; i < num_property_mappings; i++)
990   {
991     int element   = property_mapping[i].base_index;
992     int action    = property_mapping[i].ext1_index;
993     int sound     = property_mapping[i].artwork_index;
994
995     if (action < 0)
996       action = ACTION_DEFAULT;
997
998     element_info[element].sound[action] = sound;
999   }
1000
1001 #if 0
1002   /* TEST ONLY */
1003   {
1004     int element = EL_CUSTOM_11;
1005     int j = 0;
1006
1007     while (element_action_info[j].suffix)
1008     {
1009       printf("element %d, sound action '%s'  == %d\n",
1010              element, element_action_info[j].suffix,
1011              element_info[element].sound[j]);
1012       j++;
1013     }
1014   }
1015
1016   PlaySoundLevelElementAction(0,0, EL_CUSTOM_11, ACTION_PUSHING);
1017 #endif
1018
1019 #if 0
1020   /* TEST ONLY */
1021   {
1022     int element = EL_SAND;
1023     int sound_action = ACTION_DIGGING;
1024     int j = 0;
1025
1026     while (element_action_info[j].suffix)
1027     {
1028       if (element_action_info[j].value == sound_action)
1029         printf("element %d, sound action '%s'  == %d\n",
1030                element, element_action_info[j].suffix,
1031                element_info[element].sound[sound_action]);
1032       j++;
1033     }
1034   }
1035 #endif
1036 }
1037
1038 static void ReinitializeGraphics()
1039 {
1040   InitGraphicInfo();                    /* graphic properties mapping */
1041   InitElementGraphicInfo();             /* element game graphic mapping */
1042   InitElementSpecialGraphicInfo();      /* element special graphic mapping */
1043
1044   InitElementSmallImages();             /* create editor and preview images */
1045   InitFontGraphicInfo();                /* initialize text drawing functions */
1046
1047   SetMainBackgroundImage(IMG_BACKGROUND);
1048   SetDoorBackgroundImage(IMG_BACKGROUND_DOOR);
1049
1050   InitGadgets();
1051   InitToons();
1052 }
1053
1054 static void ReinitializeSounds()
1055 {
1056   InitSoundInfo();              /* sound properties mapping */
1057   InitElementSoundInfo();       /* element game sound mapping */
1058
1059 #if 1
1060   InitElementSoundInfo();       /* element game sound mapping */
1061 #endif
1062
1063   InitPlaySoundLevel();         /* internal game sound settings */
1064 }
1065
1066 static void ReinitializeMusic()
1067 {
1068   /* currently nothing to do */
1069 }
1070
1071 void InitElementPropertiesStatic()
1072 {
1073   static int ep_amoebalive[] =
1074   {
1075     EL_AMOEBA_WET,
1076     EL_AMOEBA_DRY,
1077     EL_AMOEBA_FULL,
1078     EL_BD_AMOEBA,
1079     -1
1080   };
1081
1082   static int ep_amoeboid[] =
1083   {
1084     EL_AMOEBA_DEAD,
1085     EL_AMOEBA_WET,
1086     EL_AMOEBA_DRY,
1087     EL_AMOEBA_FULL,
1088     EL_BD_AMOEBA,
1089     -1
1090   };
1091
1092   static int ep_keygate[] =
1093   {
1094     EL_GATE_1,
1095     EL_GATE_2,
1096     EL_GATE_3,
1097     EL_GATE_4,
1098     EL_GATE_1_GRAY,
1099     EL_GATE_2_GRAY,
1100     EL_GATE_3_GRAY,
1101     EL_GATE_4_GRAY,
1102     EL_EM_GATE_1,
1103     EL_EM_GATE_2,
1104     EL_EM_GATE_3,
1105     EL_EM_GATE_4,
1106     EL_EM_GATE_1_GRAY,
1107     EL_EM_GATE_2_GRAY,
1108     EL_EM_GATE_3_GRAY,
1109     EL_EM_GATE_4_GRAY,
1110     -1
1111   };
1112
1113   static int ep_can_be_crumbled[] =
1114   {
1115     EL_SAND,
1116     EL_LANDMINE,
1117     EL_TRAP,
1118     EL_TRAP_ACTIVE,
1119     -1
1120   };
1121
1122   static int ep_historic_solid[] =
1123   {
1124     EL_WALL,
1125     EL_EXPANDABLE_WALL,
1126     EL_EXPANDABLE_WALL_HORIZONTAL,
1127     EL_EXPANDABLE_WALL_VERTICAL,
1128     EL_EXPANDABLE_WALL_ANY,
1129     EL_BD_WALL,
1130     EL_WALL_CRUMBLED,
1131     EL_EXIT_CLOSED,
1132     EL_EXIT_OPENING,
1133     EL_EXIT_OPEN,
1134     EL_AMOEBA_DEAD,
1135     EL_AMOEBA_WET,
1136     EL_AMOEBA_DRY,
1137     EL_AMOEBA_FULL,
1138     EL_BD_AMOEBA,
1139     EL_QUICKSAND_EMPTY,
1140     EL_QUICKSAND_FULL,
1141     EL_QUICKSAND_FILLING,
1142     EL_QUICKSAND_EMPTYING,
1143     EL_MAGIC_WALL,
1144     EL_MAGIC_WALL_ACTIVE,
1145     EL_MAGIC_WALL_EMPTYING,
1146     EL_MAGIC_WALL_FILLING,
1147     EL_MAGIC_WALL_FULL,
1148     EL_MAGIC_WALL_DEAD,
1149     EL_BD_MAGIC_WALL,
1150     EL_BD_MAGIC_WALL_ACTIVE,
1151     EL_BD_MAGIC_WALL_EMPTYING,
1152     EL_BD_MAGIC_WALL_FULL,
1153     EL_BD_MAGIC_WALL_FILLING,
1154     EL_BD_MAGIC_WALL_DEAD,
1155     EL_GAME_OF_LIFE,
1156     EL_BIOMAZE,
1157     EL_SP_CHIP_SINGLE,
1158     EL_SP_CHIP_LEFT,
1159     EL_SP_CHIP_RIGHT,
1160     EL_SP_CHIP_TOP,
1161     EL_SP_CHIP_BOTTOM,
1162     EL_SP_TERMINAL,
1163     EL_SP_TERMINAL_ACTIVE,
1164     EL_SP_EXIT_CLOSED,
1165     EL_SP_EXIT_OPEN,
1166     EL_INVISIBLE_WALL,
1167     EL_INVISIBLE_WALL_ACTIVE,
1168     EL_SWITCHGATE_SWITCH_UP,
1169     EL_SWITCHGATE_SWITCH_DOWN,
1170     EL_TIMEGATE_SWITCH,
1171     EL_TIMEGATE_SWITCH_ACTIVE,
1172     EL_EMC_WALL_1,
1173     EL_EMC_WALL_2,
1174     EL_EMC_WALL_3,
1175     EL_EMC_WALL_4,
1176     EL_EMC_WALL_5,
1177     EL_EMC_WALL_6,
1178     EL_EMC_WALL_7,
1179     EL_EMC_WALL_8,
1180     EL_WALL_PEARL,
1181     EL_WALL_CRYSTAL,
1182
1183     /* the following elements are a direct copy of "indestructible" elements,
1184        except "EL_ACID", which is "indestructible", but not "solid"! */
1185 #if 0
1186     EL_ACID,
1187 #endif
1188     EL_STEELWALL,
1189     EL_ACID_POOL_TOPLEFT,
1190     EL_ACID_POOL_TOPRIGHT,
1191     EL_ACID_POOL_BOTTOMLEFT,
1192     EL_ACID_POOL_BOTTOM,
1193     EL_ACID_POOL_BOTTOMRIGHT,
1194     EL_SP_HARDWARE_GRAY,
1195     EL_SP_HARDWARE_GREEN,
1196     EL_SP_HARDWARE_BLUE,
1197     EL_SP_HARDWARE_RED,
1198     EL_SP_HARDWARE_YELLOW,
1199     EL_SP_HARDWARE_BASE_1,
1200     EL_SP_HARDWARE_BASE_2,
1201     EL_SP_HARDWARE_BASE_3,
1202     EL_SP_HARDWARE_BASE_4,
1203     EL_SP_HARDWARE_BASE_5,
1204     EL_SP_HARDWARE_BASE_6,
1205     EL_INVISIBLE_STEELWALL,
1206     EL_INVISIBLE_STEELWALL_ACTIVE,
1207     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1208     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1209     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1210     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1211     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1212     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1213     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1214     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1215     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1216     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1217     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1218     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1219     EL_LIGHT_SWITCH,
1220     EL_LIGHT_SWITCH_ACTIVE,
1221     EL_SIGN_EXCLAMATION,
1222     EL_SIGN_RADIOACTIVITY,
1223     EL_SIGN_STOP,
1224     EL_SIGN_WHEELCHAIR,
1225     EL_SIGN_PARKING,
1226     EL_SIGN_ONEWAY,
1227     EL_SIGN_HEART,
1228     EL_SIGN_TRIANGLE,
1229     EL_SIGN_ROUND,
1230     EL_SIGN_EXIT,
1231     EL_SIGN_YINYANG,
1232     EL_SIGN_OTHER,
1233     EL_STEELWALL_SLANTED,
1234     EL_EMC_STEELWALL_1,
1235     EL_EMC_STEELWALL_2,
1236     EL_EMC_STEELWALL_3,
1237     EL_EMC_STEELWALL_4,
1238     EL_CRYSTAL,
1239     EL_GATE_1,
1240     EL_GATE_2,
1241     EL_GATE_3,
1242     EL_GATE_4,
1243     EL_GATE_1_GRAY,
1244     EL_GATE_2_GRAY,
1245     EL_GATE_3_GRAY,
1246     EL_GATE_4_GRAY,
1247     EL_EM_GATE_1,
1248     EL_EM_GATE_2,
1249     EL_EM_GATE_3,
1250     EL_EM_GATE_4,
1251     EL_EM_GATE_1_GRAY,
1252     EL_EM_GATE_2_GRAY,
1253     EL_EM_GATE_3_GRAY,
1254     EL_EM_GATE_4_GRAY,
1255     EL_SWITCHGATE_OPEN,
1256     EL_SWITCHGATE_OPENING,
1257     EL_SWITCHGATE_CLOSED,
1258     EL_SWITCHGATE_CLOSING,
1259     EL_TIMEGATE_OPEN,
1260     EL_TIMEGATE_OPENING,
1261     EL_TIMEGATE_CLOSED,
1262     EL_TIMEGATE_CLOSING,
1263     EL_TUBE_ANY,
1264     EL_TUBE_VERTICAL,
1265     EL_TUBE_HORIZONTAL,
1266     EL_TUBE_VERTICAL_LEFT,
1267     EL_TUBE_VERTICAL_RIGHT,
1268     EL_TUBE_HORIZONTAL_UP,
1269     EL_TUBE_HORIZONTAL_DOWN,
1270     EL_TUBE_LEFT_UP,
1271     EL_TUBE_LEFT_DOWN,
1272     EL_TUBE_RIGHT_UP,
1273     EL_TUBE_RIGHT_DOWN,
1274     -1
1275   };
1276
1277   static int ep_indestructible[] =
1278   {
1279     EL_STEELWALL,
1280     EL_ACID,
1281     EL_ACID_POOL_TOPLEFT,
1282     EL_ACID_POOL_TOPRIGHT,
1283     EL_ACID_POOL_BOTTOMLEFT,
1284     EL_ACID_POOL_BOTTOM,
1285     EL_ACID_POOL_BOTTOMRIGHT,
1286     EL_SP_HARDWARE_GRAY,
1287     EL_SP_HARDWARE_GREEN,
1288     EL_SP_HARDWARE_BLUE,
1289     EL_SP_HARDWARE_RED,
1290     EL_SP_HARDWARE_YELLOW,
1291     EL_SP_HARDWARE_BASE_1,
1292     EL_SP_HARDWARE_BASE_2,
1293     EL_SP_HARDWARE_BASE_3,
1294     EL_SP_HARDWARE_BASE_4,
1295     EL_SP_HARDWARE_BASE_5,
1296     EL_SP_HARDWARE_BASE_6,
1297     EL_INVISIBLE_STEELWALL,
1298     EL_INVISIBLE_STEELWALL_ACTIVE,
1299     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1300     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1301     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1302     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1303     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1304     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1305     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1306     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1307     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1308     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1309     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1310     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1311     EL_LIGHT_SWITCH,
1312     EL_LIGHT_SWITCH_ACTIVE,
1313     EL_SIGN_EXCLAMATION,
1314     EL_SIGN_RADIOACTIVITY,
1315     EL_SIGN_STOP,
1316     EL_SIGN_WHEELCHAIR,
1317     EL_SIGN_PARKING,
1318     EL_SIGN_ONEWAY,
1319     EL_SIGN_HEART,
1320     EL_SIGN_TRIANGLE,
1321     EL_SIGN_ROUND,
1322     EL_SIGN_EXIT,
1323     EL_SIGN_YINYANG,
1324     EL_SIGN_OTHER,
1325     EL_STEELWALL_SLANTED,
1326     EL_EMC_STEELWALL_1,
1327     EL_EMC_STEELWALL_2,
1328     EL_EMC_STEELWALL_3,
1329     EL_EMC_STEELWALL_4,
1330     EL_CRYSTAL,
1331     EL_GATE_1,
1332     EL_GATE_2,
1333     EL_GATE_3,
1334     EL_GATE_4,
1335     EL_GATE_1_GRAY,
1336     EL_GATE_2_GRAY,
1337     EL_GATE_3_GRAY,
1338     EL_GATE_4_GRAY,
1339     EL_EM_GATE_1,
1340     EL_EM_GATE_2,
1341     EL_EM_GATE_3,
1342     EL_EM_GATE_4,
1343     EL_EM_GATE_1_GRAY,
1344     EL_EM_GATE_2_GRAY,
1345     EL_EM_GATE_3_GRAY,
1346     EL_EM_GATE_4_GRAY,
1347     EL_SWITCHGATE_OPEN,
1348     EL_SWITCHGATE_OPENING,
1349     EL_SWITCHGATE_CLOSED,
1350     EL_SWITCHGATE_CLOSING,
1351     EL_TIMEGATE_OPEN,
1352     EL_TIMEGATE_OPENING,
1353     EL_TIMEGATE_CLOSED,
1354     EL_TIMEGATE_CLOSING,
1355     EL_TUBE_ANY,
1356     EL_TUBE_VERTICAL,
1357     EL_TUBE_HORIZONTAL,
1358     EL_TUBE_VERTICAL_LEFT,
1359     EL_TUBE_VERTICAL_RIGHT,
1360     EL_TUBE_HORIZONTAL_UP,
1361     EL_TUBE_HORIZONTAL_DOWN,
1362     EL_TUBE_LEFT_UP,
1363     EL_TUBE_LEFT_DOWN,
1364     EL_TUBE_RIGHT_UP,
1365     EL_TUBE_RIGHT_DOWN,
1366     -1
1367   };
1368
1369   static int ep_slippery[] =
1370   {
1371     EL_WALL_CRUMBLED,
1372     EL_BD_WALL,
1373     EL_ROCK,
1374     EL_BD_ROCK,
1375     EL_EMERALD,
1376     EL_BD_DIAMOND,
1377     EL_EMERALD_YELLOW,
1378     EL_EMERALD_RED,
1379     EL_EMERALD_PURPLE,
1380     EL_DIAMOND,
1381     EL_BOMB,
1382     EL_NUT,
1383     EL_ROBOT_WHEEL_ACTIVE,
1384     EL_ROBOT_WHEEL,
1385     EL_TIME_ORB_FULL,
1386     EL_TIME_ORB_EMPTY,
1387     EL_LAMP_ACTIVE,
1388     EL_LAMP,
1389     EL_ACID_POOL_TOPLEFT,
1390     EL_ACID_POOL_TOPRIGHT,
1391     EL_SATELLITE,
1392     EL_SP_ZONK,
1393     EL_SP_INFOTRON,
1394     EL_SP_CHIP_SINGLE,
1395     EL_SP_CHIP_LEFT,
1396     EL_SP_CHIP_RIGHT,
1397     EL_SP_CHIP_TOP,
1398     EL_SP_CHIP_BOTTOM,
1399     EL_SPEED_PILL,
1400     EL_STEELWALL_SLANTED,
1401     EL_PEARL,
1402     EL_CRYSTAL,
1403     -1
1404   };
1405
1406   static int ep_enemy[] =
1407   {
1408     EL_BUG,
1409     EL_SPACESHIP,
1410     EL_BD_BUTTERFLY,
1411     EL_BD_FIREFLY,
1412     EL_YAMYAM,
1413     EL_DARK_YAMYAM,
1414     EL_ROBOT,
1415     EL_PACMAN,
1416     EL_SP_SNIKSNAK,
1417     EL_SP_ELECTRON,
1418     -1
1419   };
1420
1421   static int ep_historic_wall[] =
1422   {
1423     EL_STEELWALL,
1424     EL_GATE_1,
1425     EL_GATE_2,
1426     EL_GATE_3,
1427     EL_GATE_4,
1428     EL_GATE_1_GRAY,
1429     EL_GATE_2_GRAY,
1430     EL_GATE_3_GRAY,
1431     EL_GATE_4_GRAY,
1432     EL_EM_GATE_1,
1433     EL_EM_GATE_2,
1434     EL_EM_GATE_3,
1435     EL_EM_GATE_4,
1436     EL_EM_GATE_1_GRAY,
1437     EL_EM_GATE_2_GRAY,
1438     EL_EM_GATE_3_GRAY,
1439     EL_EM_GATE_4_GRAY,
1440     EL_EXIT_CLOSED,
1441     EL_EXIT_OPENING,
1442     EL_EXIT_OPEN,
1443     EL_WALL,
1444     EL_WALL_CRUMBLED,
1445     EL_EXPANDABLE_WALL,
1446     EL_EXPANDABLE_WALL_HORIZONTAL,
1447     EL_EXPANDABLE_WALL_VERTICAL,
1448     EL_EXPANDABLE_WALL_ANY,
1449     EL_EXPANDABLE_WALL_GROWING,
1450     EL_BD_WALL,
1451     EL_SP_CHIP_SINGLE,
1452     EL_SP_CHIP_LEFT,
1453     EL_SP_CHIP_RIGHT,
1454     EL_SP_CHIP_TOP,
1455     EL_SP_CHIP_BOTTOM,
1456     EL_SP_HARDWARE_GRAY,
1457     EL_SP_HARDWARE_GREEN,
1458     EL_SP_HARDWARE_BLUE,
1459     EL_SP_HARDWARE_RED,
1460     EL_SP_HARDWARE_YELLOW,
1461     EL_SP_HARDWARE_BASE_1,
1462     EL_SP_HARDWARE_BASE_2,
1463     EL_SP_HARDWARE_BASE_3,
1464     EL_SP_HARDWARE_BASE_4,
1465     EL_SP_HARDWARE_BASE_5,
1466     EL_SP_HARDWARE_BASE_6,
1467     EL_SP_TERMINAL,
1468     EL_SP_TERMINAL_ACTIVE,
1469     EL_SP_EXIT_CLOSED,
1470     EL_SP_EXIT_OPEN,
1471     EL_INVISIBLE_STEELWALL,
1472     EL_INVISIBLE_STEELWALL_ACTIVE,
1473     EL_INVISIBLE_WALL,
1474     EL_INVISIBLE_WALL_ACTIVE,
1475     EL_STEELWALL_SLANTED,
1476     EL_EMC_STEELWALL_1,
1477     EL_EMC_STEELWALL_2,
1478     EL_EMC_STEELWALL_3,
1479     EL_EMC_STEELWALL_4,
1480     EL_EMC_WALL_1,
1481     EL_EMC_WALL_2,
1482     EL_EMC_WALL_3,
1483     EL_EMC_WALL_4,
1484     EL_EMC_WALL_5,
1485     EL_EMC_WALL_6,
1486     EL_EMC_WALL_7,
1487     EL_EMC_WALL_8,
1488     -1
1489   };
1490
1491   static int ep_can_fall[] =
1492   {
1493     EL_ROCK,
1494     EL_BD_ROCK,
1495     EL_EMERALD,
1496     EL_BD_DIAMOND,
1497     EL_EMERALD_YELLOW,
1498     EL_EMERALD_RED,
1499     EL_EMERALD_PURPLE,
1500     EL_DIAMOND,
1501     EL_BOMB,
1502     EL_NUT,
1503     EL_AMOEBA_DROP,
1504     EL_QUICKSAND_FULL,
1505     EL_MAGIC_WALL_FULL,
1506     EL_BD_MAGIC_WALL_FULL,
1507     EL_TIME_ORB_FULL,
1508     EL_TIME_ORB_EMPTY,
1509     EL_SP_ZONK,
1510     EL_SP_INFOTRON,
1511     EL_SP_DISK_ORANGE,
1512     EL_PEARL,
1513     EL_CRYSTAL,
1514     EL_SPRING,
1515     EL_DX_SUPABOMB,
1516     -1
1517   };
1518
1519   static int ep_can_smash[] =
1520   {
1521     EL_ROCK,
1522     EL_BD_ROCK,
1523     EL_EMERALD,
1524     EL_BD_DIAMOND,
1525     EL_EMERALD_YELLOW,
1526     EL_EMERALD_RED,
1527     EL_EMERALD_PURPLE,
1528     EL_DIAMOND,
1529     EL_BOMB,
1530     EL_NUT,
1531     EL_AMOEBA_DROP,
1532     EL_TIME_ORB_FULL,
1533     EL_TIME_ORB_EMPTY,
1534     EL_SP_ZONK,
1535     EL_SP_INFOTRON,
1536     EL_SP_DISK_ORANGE,
1537     EL_PEARL,
1538     EL_CRYSTAL,
1539     EL_SPRING,
1540     EL_DX_SUPABOMB,
1541     -1
1542   };
1543
1544   static int ep_can_change[] =
1545   {
1546     EL_ROCK,
1547     EL_BD_ROCK,
1548     EL_EMERALD,
1549     EL_BD_DIAMOND,
1550     EL_EMERALD_YELLOW,
1551     EL_EMERALD_RED,
1552     EL_EMERALD_PURPLE,
1553     EL_DIAMOND,
1554     -1
1555   };
1556
1557   static int ep_can_move[] =
1558   {
1559     EL_BUG,
1560     EL_SPACESHIP,
1561     EL_BD_BUTTERFLY,
1562     EL_BD_FIREFLY,
1563     EL_YAMYAM,
1564     EL_DARK_YAMYAM,
1565     EL_ROBOT,
1566     EL_PACMAN,
1567     EL_MOLE,
1568     EL_PENGUIN,
1569     EL_PIG,
1570     EL_DRAGON,
1571     EL_SATELLITE,
1572     EL_SP_SNIKSNAK,
1573     EL_SP_ELECTRON,
1574     EL_BALLOON,
1575     EL_SPRING,
1576     -1
1577   };
1578
1579   static int ep_could_move[] =
1580   {
1581     EL_BUG_RIGHT,
1582     EL_BUG_UP,
1583     EL_BUG_LEFT,
1584     EL_BUG_DOWN,
1585     EL_SPACESHIP_RIGHT,
1586     EL_SPACESHIP_UP,
1587     EL_SPACESHIP_LEFT,
1588     EL_SPACESHIP_DOWN,
1589     EL_BD_BUTTERFLY_RIGHT,
1590     EL_BD_BUTTERFLY_UP,
1591     EL_BD_BUTTERFLY_LEFT,
1592     EL_BD_BUTTERFLY_DOWN,
1593     EL_BD_FIREFLY_RIGHT,
1594     EL_BD_FIREFLY_UP,
1595     EL_BD_FIREFLY_LEFT,
1596     EL_BD_FIREFLY_DOWN,
1597     EL_PACMAN_RIGHT,
1598     EL_PACMAN_UP,
1599     EL_PACMAN_LEFT,
1600     EL_PACMAN_DOWN,
1601     -1
1602   };
1603
1604   static int ep_dont_touch[] =
1605   {
1606     EL_BUG,
1607     EL_SPACESHIP,
1608     EL_BD_BUTTERFLY,
1609     EL_BD_FIREFLY,
1610     -1
1611   };
1612
1613   static int ep_dont_go_to[] =
1614   {
1615     EL_BUG,
1616     EL_SPACESHIP,
1617     EL_BD_BUTTERFLY,
1618     EL_BD_FIREFLY,
1619     EL_YAMYAM,
1620     EL_DARK_YAMYAM,
1621     EL_ROBOT,
1622     EL_PACMAN,
1623     EL_AMOEBA_DROP,
1624     EL_ACID,
1625     EL_SP_SNIKSNAK,
1626     EL_SP_ELECTRON,
1627     EL_SP_BUGGY_BASE_ACTIVE,
1628     EL_TRAP_ACTIVE,
1629     EL_LANDMINE,
1630     -1
1631   };
1632
1633   static int ep_food_dark_yamyam[] =
1634   {
1635     EL_SAND,
1636     EL_BUG,
1637     EL_SPACESHIP,
1638     EL_BD_BUTTERFLY,
1639     EL_BD_FIREFLY,
1640     EL_YAMYAM,
1641     EL_ROBOT,
1642     EL_PACMAN,
1643     EL_AMOEBA_DROP,
1644     EL_AMOEBA_DEAD,
1645     EL_AMOEBA_WET,
1646     EL_AMOEBA_DRY,
1647     EL_AMOEBA_FULL,
1648     EL_BD_AMOEBA,
1649     EL_EMERALD,
1650     EL_BD_DIAMOND,
1651     EL_EMERALD_YELLOW,
1652     EL_EMERALD_RED,
1653     EL_EMERALD_PURPLE,
1654     EL_DIAMOND,
1655     EL_PEARL,
1656     EL_CRYSTAL,
1657     -1
1658   };
1659
1660   static int ep_bd_element[] =
1661   {
1662     EL_EMPTY,
1663     EL_SAND,
1664     EL_WALL_CRUMBLED,
1665     EL_BD_WALL,
1666     EL_ROCK,
1667     EL_BD_ROCK,
1668     EL_BD_DIAMOND,
1669     EL_BD_MAGIC_WALL,
1670     EL_EXIT_CLOSED,
1671     EL_EXIT_OPEN,
1672     EL_STEELWALL,
1673     EL_PLAYER_1,
1674     EL_BD_FIREFLY,
1675     EL_BD_FIREFLY_1,
1676     EL_BD_FIREFLY_2,
1677     EL_BD_FIREFLY_3,
1678     EL_BD_FIREFLY_4,
1679     EL_BD_BUTTERFLY,
1680     EL_BD_BUTTERFLY_1,
1681     EL_BD_BUTTERFLY_2,
1682     EL_BD_BUTTERFLY_3,
1683     EL_BD_BUTTERFLY_4,
1684     EL_BD_AMOEBA,
1685     EL_CHAR_QUESTION,
1686     -1
1687   };
1688
1689   static int ep_sb_element[] =
1690   {
1691     EL_EMPTY,
1692     EL_STEELWALL,
1693     EL_SOKOBAN_OBJECT,
1694     EL_SOKOBAN_FIELD_EMPTY,
1695     EL_SOKOBAN_FIELD_FULL,
1696     EL_PLAYER_1,
1697     EL_INVISIBLE_STEELWALL,
1698     -1
1699   };
1700
1701   static int ep_gem[] =
1702   {
1703     EL_EMERALD,
1704     EL_BD_DIAMOND,
1705     EL_EMERALD_YELLOW,
1706     EL_EMERALD_RED,
1707     EL_EMERALD_PURPLE,
1708     EL_DIAMOND,
1709     -1
1710   };
1711
1712   static int ep_inactive[] =
1713   {
1714     EL_EMPTY,
1715     EL_SAND,
1716     EL_WALL,
1717     EL_BD_WALL,
1718     EL_WALL_CRUMBLED,
1719     EL_STEELWALL,
1720     EL_AMOEBA_DEAD,
1721     EL_QUICKSAND_EMPTY,
1722     EL_STONEBLOCK,
1723     EL_ROBOT_WHEEL,
1724     EL_KEY_1,
1725     EL_KEY_2,
1726     EL_KEY_3,
1727     EL_KEY_4,
1728     EL_EM_KEY_1,
1729     EL_EM_KEY_2,
1730     EL_EM_KEY_3,
1731     EL_EM_KEY_4,
1732     EL_GATE_1,
1733     EL_GATE_2,
1734     EL_GATE_3,
1735     EL_GATE_4,
1736     EL_GATE_1_GRAY,
1737     EL_GATE_2_GRAY,
1738     EL_GATE_3_GRAY,
1739     EL_GATE_4_GRAY,
1740     EL_EM_GATE_1,
1741     EL_EM_GATE_2,
1742     EL_EM_GATE_3,
1743     EL_EM_GATE_4,
1744     EL_EM_GATE_1_GRAY,
1745     EL_EM_GATE_2_GRAY,
1746     EL_EM_GATE_3_GRAY,
1747     EL_EM_GATE_4_GRAY,
1748     EL_DYNAMITE,
1749     EL_INVISIBLE_STEELWALL,
1750     EL_INVISIBLE_WALL,
1751     EL_INVISIBLE_SAND,
1752     EL_LAMP,
1753     EL_LAMP_ACTIVE,
1754     EL_WALL_EMERALD,
1755     EL_WALL_DIAMOND,
1756     EL_WALL_BD_DIAMOND,
1757     EL_WALL_EMERALD_YELLOW,
1758     EL_DYNABOMB_INCREASE_NUMBER,
1759     EL_DYNABOMB_INCREASE_SIZE,
1760     EL_DYNABOMB_INCREASE_POWER,
1761     EL_SOKOBAN_OBJECT,
1762     EL_SOKOBAN_FIELD_EMPTY,
1763     EL_SOKOBAN_FIELD_FULL,
1764     EL_WALL_EMERALD_RED,
1765     EL_WALL_EMERALD_PURPLE,
1766     EL_ACID_POOL_TOPLEFT,
1767     EL_ACID_POOL_TOPRIGHT,
1768     EL_ACID_POOL_BOTTOMLEFT,
1769     EL_ACID_POOL_BOTTOM,
1770     EL_ACID_POOL_BOTTOMRIGHT,
1771     EL_MAGIC_WALL,
1772     EL_MAGIC_WALL_DEAD,
1773     EL_BD_MAGIC_WALL,
1774     EL_BD_MAGIC_WALL_DEAD,
1775     EL_AMOEBA_TO_DIAMOND,
1776     EL_BLOCKED,
1777     EL_SP_EMPTY,
1778     EL_SP_BASE,
1779     EL_SP_PORT_RIGHT,
1780     EL_SP_PORT_DOWN,
1781     EL_SP_PORT_LEFT,
1782     EL_SP_PORT_UP,
1783     EL_SP_GRAVITY_PORT_RIGHT,
1784     EL_SP_GRAVITY_PORT_DOWN,
1785     EL_SP_GRAVITY_PORT_LEFT,
1786     EL_SP_GRAVITY_PORT_UP,
1787     EL_SP_PORT_HORIZONTAL,
1788     EL_SP_PORT_VERTICAL,
1789     EL_SP_PORT_ANY,
1790     EL_SP_DISK_RED,
1791     EL_SP_DISK_YELLOW,
1792     EL_SP_CHIP_SINGLE,
1793     EL_SP_CHIP_LEFT,
1794     EL_SP_CHIP_RIGHT,
1795     EL_SP_CHIP_TOP,
1796     EL_SP_CHIP_BOTTOM,
1797     EL_SP_HARDWARE_GRAY,
1798     EL_SP_HARDWARE_GREEN,
1799     EL_SP_HARDWARE_BLUE,
1800     EL_SP_HARDWARE_RED,
1801     EL_SP_HARDWARE_YELLOW,
1802     EL_SP_HARDWARE_BASE_1,
1803     EL_SP_HARDWARE_BASE_2,
1804     EL_SP_HARDWARE_BASE_3,
1805     EL_SP_HARDWARE_BASE_4,
1806     EL_SP_HARDWARE_BASE_5,
1807     EL_SP_HARDWARE_BASE_6,
1808     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1809     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1810     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1811     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1812     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1813     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1814     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1815     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1816     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1817     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1818     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1819     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1820     EL_SIGN_EXCLAMATION,
1821     EL_SIGN_RADIOACTIVITY,
1822     EL_SIGN_STOP,
1823     EL_SIGN_WHEELCHAIR,
1824     EL_SIGN_PARKING,
1825     EL_SIGN_ONEWAY,
1826     EL_SIGN_HEART,
1827     EL_SIGN_TRIANGLE,
1828     EL_SIGN_ROUND,
1829     EL_SIGN_EXIT,
1830     EL_SIGN_YINYANG,
1831     EL_SIGN_OTHER,
1832     EL_STEELWALL_SLANTED,
1833     EL_EMC_STEELWALL_1,
1834     EL_EMC_STEELWALL_2,
1835     EL_EMC_STEELWALL_3,
1836     EL_EMC_STEELWALL_4,
1837     EL_EMC_WALL_1,
1838     EL_EMC_WALL_2,
1839     EL_EMC_WALL_3,
1840     EL_EMC_WALL_4,
1841     EL_EMC_WALL_5,
1842     EL_EMC_WALL_6,
1843     EL_EMC_WALL_7,
1844     EL_EMC_WALL_8,
1845     -1
1846   };
1847
1848   static int ep_explosive[] =
1849   {
1850     EL_BOMB,
1851     EL_DYNAMITE_ACTIVE,
1852     EL_DYNAMITE,
1853     EL_DYNABOMB_PLAYER_1_ACTIVE,
1854     EL_DYNABOMB_PLAYER_2_ACTIVE,
1855     EL_DYNABOMB_PLAYER_3_ACTIVE,
1856     EL_DYNABOMB_PLAYER_4_ACTIVE,
1857     EL_DYNABOMB_INCREASE_NUMBER,
1858     EL_DYNABOMB_INCREASE_SIZE,
1859     EL_DYNABOMB_INCREASE_POWER,
1860     EL_SP_DISK_RED_ACTIVE,
1861     EL_BUG,
1862     EL_MOLE,
1863     EL_PENGUIN,
1864     EL_PIG,
1865     EL_DRAGON,
1866     EL_SATELLITE,
1867     EL_SP_DISK_RED,
1868     EL_SP_DISK_ORANGE,
1869     EL_SP_DISK_YELLOW,
1870     EL_SP_SNIKSNAK,
1871     EL_SP_ELECTRON,
1872     EL_DX_SUPABOMB,
1873     -1
1874   };
1875
1876   static int ep_food_penguin[] =
1877   {
1878     EL_EMERALD,
1879     EL_BD_DIAMOND,
1880     EL_EMERALD_YELLOW,
1881     EL_EMERALD_RED,
1882     EL_EMERALD_PURPLE,
1883     EL_DIAMOND,
1884     EL_PEARL,
1885     EL_CRYSTAL,
1886     -1
1887   };
1888
1889   static int ep_pushable[] =
1890   {
1891     EL_ROCK,
1892     EL_BD_ROCK,
1893     EL_BOMB,
1894     EL_NUT,
1895     EL_TIME_ORB_EMPTY,
1896     EL_SOKOBAN_FIELD_FULL,
1897     EL_SOKOBAN_OBJECT,
1898     EL_SATELLITE,
1899     EL_SP_ZONK,
1900     EL_SP_DISK_ORANGE,
1901     EL_SP_DISK_YELLOW,
1902     EL_BALLOON,
1903     EL_SPRING,
1904     EL_DX_SUPABOMB,
1905     -1
1906   };
1907
1908   static int ep_player[] =
1909   {
1910     EL_PLAYER_1,
1911     EL_PLAYER_2,
1912     EL_PLAYER_3,
1913     EL_PLAYER_4,
1914     -1
1915   };
1916
1917   static int ep_walkable_over[] =
1918   {
1919     EL_EMPTY_SPACE,
1920     EL_SP_EMPTY_SPACE,
1921     EL_SOKOBAN_FIELD_EMPTY,
1922     EL_EXIT_OPEN,
1923     EL_SP_EXIT_OPEN,
1924     EL_GATE_1,
1925     EL_GATE_2,
1926     EL_GATE_3,
1927     EL_GATE_4,
1928     EL_GATE_1_GRAY,
1929     EL_GATE_2_GRAY,
1930     EL_GATE_3_GRAY,
1931     EL_GATE_4_GRAY,
1932     -1
1933   };
1934
1935   static int ep_walkable_inside[] =
1936   {
1937     EL_TUBE_ANY,
1938     EL_TUBE_VERTICAL,
1939     EL_TUBE_HORIZONTAL,
1940     EL_TUBE_VERTICAL_LEFT,
1941     EL_TUBE_VERTICAL_RIGHT,
1942     EL_TUBE_HORIZONTAL_UP,
1943     EL_TUBE_HORIZONTAL_DOWN,
1944     EL_TUBE_LEFT_UP,
1945     EL_TUBE_LEFT_DOWN,
1946     EL_TUBE_RIGHT_UP,
1947     EL_TUBE_RIGHT_DOWN,
1948     -1
1949   };
1950
1951   static int ep_walkable_under[] =
1952   {
1953     -1
1954   };
1955
1956   static int ep_passable_over[] =
1957   {
1958     EL_EM_GATE_1,
1959     EL_EM_GATE_2,
1960     EL_EM_GATE_3,
1961     EL_EM_GATE_4,
1962     EL_EM_GATE_1_GRAY,
1963     EL_EM_GATE_2_GRAY,
1964     EL_EM_GATE_3_GRAY,
1965     EL_EM_GATE_4_GRAY,
1966     EL_SWITCHGATE_OPEN,
1967     EL_TIMEGATE_OPEN,
1968     -1
1969   };
1970
1971   static int ep_passable_inside[] =
1972   {
1973     EL_SP_PORT_LEFT,
1974     EL_SP_PORT_RIGHT,
1975     EL_SP_PORT_UP,
1976     EL_SP_PORT_DOWN,
1977     EL_SP_PORT_HORIZONTAL,
1978     EL_SP_PORT_VERTICAL,
1979     EL_SP_PORT_ANY,
1980     EL_SP_GRAVITY_PORT_LEFT,
1981     EL_SP_GRAVITY_PORT_RIGHT,
1982     EL_SP_GRAVITY_PORT_UP,
1983     EL_SP_GRAVITY_PORT_DOWN,
1984     -1
1985   };
1986
1987   static int ep_passable_under[] =
1988   {
1989     -1
1990   };
1991
1992   static int ep_diggable[] =
1993   {
1994     EL_SAND,
1995     EL_SP_BASE,
1996     EL_SP_BUGGY_BASE,
1997     EL_SP_BUGGY_BASE_ACTIVATING,
1998     EL_TRAP,
1999     EL_INVISIBLE_SAND,
2000     EL_INVISIBLE_SAND_ACTIVE,
2001 #if 1
2002     EL_LANDMINE,
2003     EL_TRAP_ACTIVE,
2004     EL_SP_BUGGY_BASE_ACTIVE,
2005 #endif
2006     -1
2007   };
2008
2009   static int ep_collectible[] =
2010   {
2011     EL_BD_DIAMOND,
2012     EL_EMERALD,
2013     EL_DIAMOND,
2014     EL_EMERALD_YELLOW,
2015     EL_EMERALD_RED,
2016     EL_EMERALD_PURPLE,
2017     EL_KEY_1,
2018     EL_KEY_2,
2019     EL_KEY_3,
2020     EL_KEY_4,
2021     EL_EM_KEY_1,
2022     EL_EM_KEY_2,
2023     EL_EM_KEY_3,
2024     EL_EM_KEY_4,
2025     EL_DYNAMITE,
2026     EL_DYNABOMB_INCREASE_NUMBER,
2027     EL_DYNABOMB_INCREASE_SIZE,
2028     EL_DYNABOMB_INCREASE_POWER,
2029     EL_SP_INFOTRON,
2030     EL_SP_DISK_RED,
2031     EL_PEARL,
2032     EL_CRYSTAL,
2033     EL_KEY_WHITE,
2034     EL_SHIELD_NORMAL,
2035     EL_SHIELD_DEADLY,
2036     EL_EXTRA_TIME,
2037     EL_ENVELOPE,
2038     EL_SPEED_PILL,
2039     -1
2040   };
2041
2042   static int ep_active_bomb[] =
2043   {
2044     EL_DYNAMITE_ACTIVE,
2045     EL_DYNABOMB_PLAYER_1_ACTIVE,
2046     EL_DYNABOMB_PLAYER_2_ACTIVE,
2047     EL_DYNABOMB_PLAYER_3_ACTIVE,
2048     EL_DYNABOMB_PLAYER_4_ACTIVE,
2049     EL_SP_DISK_RED_ACTIVE,
2050     -1
2051   };
2052
2053   static int ep_belt[] =
2054   {
2055     EL_CONVEYOR_BELT_1_LEFT,
2056     EL_CONVEYOR_BELT_1_MIDDLE,
2057     EL_CONVEYOR_BELT_1_RIGHT,
2058     EL_CONVEYOR_BELT_2_LEFT,
2059     EL_CONVEYOR_BELT_2_MIDDLE,
2060     EL_CONVEYOR_BELT_2_RIGHT,
2061     EL_CONVEYOR_BELT_3_LEFT,
2062     EL_CONVEYOR_BELT_3_MIDDLE,
2063     EL_CONVEYOR_BELT_3_RIGHT,
2064     EL_CONVEYOR_BELT_4_LEFT,
2065     EL_CONVEYOR_BELT_4_MIDDLE,
2066     EL_CONVEYOR_BELT_4_RIGHT,
2067     -1
2068   };
2069
2070   static int ep_belt_active[] =
2071   {
2072     EL_CONVEYOR_BELT_1_LEFT_ACTIVE,
2073     EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE,
2074     EL_CONVEYOR_BELT_1_RIGHT_ACTIVE,
2075     EL_CONVEYOR_BELT_2_LEFT_ACTIVE,
2076     EL_CONVEYOR_BELT_2_MIDDLE_ACTIVE,
2077     EL_CONVEYOR_BELT_2_RIGHT_ACTIVE,
2078     EL_CONVEYOR_BELT_3_LEFT_ACTIVE,
2079     EL_CONVEYOR_BELT_3_MIDDLE_ACTIVE,
2080     EL_CONVEYOR_BELT_3_RIGHT_ACTIVE,
2081     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
2082     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
2083     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
2084     -1
2085   };
2086
2087   static int ep_belt_switch[] =
2088   {
2089     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2090     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2091     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2092     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2093     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2094     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2095     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2096     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2097     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2098     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2099     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2100     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2101     -1
2102   };
2103
2104   static int ep_sp_element[] =
2105   {
2106     EL_SP_EMPTY,
2107     EL_SP_ZONK,
2108     EL_SP_BASE,
2109     EL_SP_MURPHY,
2110     EL_SP_INFOTRON,
2111     EL_SP_CHIP_SINGLE,
2112     EL_SP_HARDWARE_GRAY,
2113     EL_SP_EXIT_CLOSED,
2114     EL_SP_EXIT_OPEN,
2115     EL_SP_DISK_ORANGE,
2116     EL_SP_PORT_RIGHT,
2117     EL_SP_PORT_DOWN,
2118     EL_SP_PORT_LEFT,
2119     EL_SP_PORT_UP,
2120     EL_SP_GRAVITY_PORT_RIGHT,
2121     EL_SP_GRAVITY_PORT_DOWN,
2122     EL_SP_GRAVITY_PORT_LEFT,
2123     EL_SP_GRAVITY_PORT_UP,
2124     EL_SP_SNIKSNAK,
2125     EL_SP_DISK_YELLOW,
2126     EL_SP_TERMINAL,
2127     EL_SP_DISK_RED,
2128     EL_SP_PORT_VERTICAL,
2129     EL_SP_PORT_HORIZONTAL,
2130     EL_SP_PORT_ANY,
2131     EL_SP_ELECTRON,
2132     EL_SP_BUGGY_BASE,
2133     EL_SP_CHIP_LEFT,
2134     EL_SP_CHIP_RIGHT,
2135     EL_SP_HARDWARE_BASE_1,
2136     EL_SP_HARDWARE_GREEN,
2137     EL_SP_HARDWARE_BLUE,
2138     EL_SP_HARDWARE_RED,
2139     EL_SP_HARDWARE_YELLOW,
2140     EL_SP_HARDWARE_BASE_2,
2141     EL_SP_HARDWARE_BASE_3,
2142     EL_SP_HARDWARE_BASE_4,
2143     EL_SP_HARDWARE_BASE_5,
2144     EL_SP_HARDWARE_BASE_6,
2145     EL_SP_CHIP_TOP,
2146     EL_SP_CHIP_BOTTOM,
2147     /* additional elements that appeared in newer Supaplex levels */
2148     EL_INVISIBLE_WALL,
2149     /* more than one murphy in a level results in an inactive clone */
2150     EL_SP_MURPHY_CLONE,
2151     -1
2152   };
2153
2154   static int ep_has_content[] =
2155   {
2156     EL_YAMYAM,
2157     EL_AMOEBA_WET,
2158     EL_AMOEBA_DRY,
2159     EL_AMOEBA_FULL,
2160     EL_BD_AMOEBA,
2161     -1
2162   };
2163
2164   static int ep_tube[] =
2165   {
2166     EL_TUBE_LEFT_UP,
2167     EL_TUBE_LEFT_DOWN,
2168     EL_TUBE_RIGHT_UP,
2169     EL_TUBE_RIGHT_DOWN,
2170     EL_TUBE_HORIZONTAL,
2171     EL_TUBE_HORIZONTAL_UP,
2172     EL_TUBE_HORIZONTAL_DOWN,
2173     EL_TUBE_VERTICAL,
2174     EL_TUBE_VERTICAL_LEFT,
2175     EL_TUBE_VERTICAL_RIGHT,
2176     EL_TUBE_ANY,
2177     -1
2178   };
2179
2180   static struct
2181   {
2182     int *elements;
2183     int property;
2184   } element_properties[] =
2185   {
2186     { ep_amoebalive,            EP_AMOEBALIVE           },
2187     { ep_amoeboid,              EP_AMOEBOID             },
2188     { ep_keygate,               EP_KEYGATE              },
2189     { ep_can_be_crumbled,       EP_CAN_BE_CRUMBLED      },
2190     { ep_historic_solid,        EP_HISTORIC_SOLID       },
2191     { ep_indestructible,        EP_INDESTRUCTIBLE       },
2192     { ep_slippery,              EP_SLIPPERY             },
2193     { ep_enemy,                 EP_ENEMY                },
2194     { ep_historic_wall,         EP_HISTORIC_WALL        },
2195     { ep_can_fall,              EP_CAN_FALL             },
2196     { ep_can_smash,             EP_CAN_SMASH            },
2197     { ep_can_change,            EP_CAN_CHANGE           },
2198     { ep_can_move,              EP_CAN_MOVE             },
2199     { ep_could_move,            EP_COULD_MOVE           },
2200     { ep_dont_touch,            EP_DONT_TOUCH           },
2201     { ep_dont_go_to,            EP_DONT_GO_TO           },
2202     { ep_food_dark_yamyam,      EP_FOOD_DARK_YAMYAM     },
2203     { ep_bd_element,            EP_BD_ELEMENT           },
2204     { ep_sb_element,            EP_SB_ELEMENT           },
2205     { ep_gem,                   EP_GEM                  },
2206     { ep_inactive,              EP_INACTIVE             },
2207     { ep_explosive,             EP_EXPLOSIVE            },
2208     { ep_food_penguin,          EP_FOOD_PENGUIN         },
2209     { ep_pushable,              EP_PUSHABLE             },
2210     { ep_player,                EP_PLAYER               },
2211     { ep_walkable_over,         EP_WALKABLE_OVER        },
2212     { ep_walkable_inside,       EP_WALKABLE_INSIDE      },
2213     { ep_walkable_under,        EP_WALKABLE_UNDER       },
2214     { ep_passable_over,         EP_PASSABLE_OVER        },
2215     { ep_passable_inside,       EP_PASSABLE_INSIDE      },
2216     { ep_passable_under,        EP_PASSABLE_UNDER       },
2217
2218     { ep_diggable,              EP_DIGGABLE             },
2219     { ep_collectible,           EP_COLLECTIBLE          },
2220     { ep_active_bomb,           EP_ACTIVE_BOMB          },
2221     { ep_belt,                  EP_BELT                 },
2222     { ep_belt_active,           EP_BELT_ACTIVE          },
2223     { ep_belt_switch,           EP_BELT_SWITCH          },
2224     { ep_sp_element,            EP_SP_ELEMENT           },
2225     { ep_has_content,           EP_HAS_CONTENT          },
2226     { ep_tube,                  EP_TUBE                 },
2227     { NULL,                     -1                      }
2228   };
2229
2230   int i, j;
2231
2232   /* always start with reliable default values (element has no properties) */
2233   for (i=0; i < MAX_NUM_ELEMENTS; i++)
2234     for (j=0; j < NUM_ELEMENT_PROPERTIES; j++)
2235       SET_PROPERTY(i, j, FALSE);
2236
2237   /* set all base element properties from above array definitions */
2238   for (i=0; element_properties[i].elements != NULL; i++)
2239     for (j=0; (element_properties[i].elements)[j] != -1; j++)
2240       SET_PROPERTY((element_properties[i].elements)[j],
2241                    element_properties[i].property, TRUE);
2242 }
2243
2244 void InitElementPropertiesEngine(int engine_version)
2245 {
2246 #if 0
2247   static int active_properties[] =
2248   {
2249     EP_AMOEBALIVE,
2250     EP_AMOEBOID,
2251     EP_PFORTE,
2252     EP_SOLID,
2253     EP_ENEMY,
2254     EP_MAUER,
2255     EP_CAN_FALL,
2256     EP_CAN_SMASH,
2257     EP_CAN_CHANGE,
2258     EP_CAN_MOVE,
2259     EP_COULD_MOVE,
2260     EP_DONT_TOUCH,
2261     EP_DONT_GO_TO,
2262     EP_GEM,
2263     EP_EXPLOSIVE,
2264     EP_PUSHABLE,
2265     EP_PLAYER,
2266     EP_HAS_CONTENT,
2267     EP_DIGGABLE,
2268     EP_PASSABLE_INSIDE,
2269     EP_OVER_PLAYER,
2270     EP_ACTIVE_BOMB,
2271
2272     EP_BELT,
2273     EP_BELT_ACTIVE,
2274     EP_BELT_SWITCH,
2275     EP_WALKABLE_UNDER,
2276     EP_EM_SLIPPERY_WALL,
2277     EP_CAN_BE_CRUMBLED,
2278   };
2279 #endif
2280
2281   static int no_wall_properties[] =
2282   {
2283     EP_AMOEBALIVE,
2284     EP_AMOEBOID,
2285     EP_CAN_BE_CRUMBLED,
2286     EP_ENEMY,
2287     EP_CAN_FALL,
2288     EP_CAN_SMASH,
2289     EP_CAN_MOVE,
2290     EP_COULD_MOVE,
2291     EP_DONT_GO_TO,
2292     EP_FOOD_DARK_YAMYAM,
2293     EP_GEM,
2294     EP_FOOD_PENGUIN,
2295     EP_PUSHABLE,
2296     EP_PLAYER,
2297     EP_ACCESSIBLE,
2298     EP_DIGGABLE,
2299     EP_COLLECTIBLE,
2300     EP_ACTIVE_BOMB,
2301     EP_BELT,
2302     EP_BELT_ACTIVE,
2303     EP_TUBE,
2304     -1
2305   };
2306
2307   int i, j;
2308
2309   /* set all special, combined or engine dependant element properties */
2310   for (i=0; i < MAX_NUM_ELEMENTS; i++)
2311   {
2312     /* ---------- INACTIVE ------------------------------------------------- */
2313     if (i >= EL_CHAR_START && i <= EL_CHAR_END)
2314       SET_PROPERTY(i, EP_INACTIVE, TRUE);
2315
2316     /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
2317     if (IS_WALKABLE_OVER(i) || IS_WALKABLE_INSIDE(i) || IS_WALKABLE_UNDER(i))
2318       SET_PROPERTY(i, EP_WALKABLE, TRUE);
2319
2320     if (IS_PASSABLE_OVER(i) || IS_PASSABLE_INSIDE(i) || IS_PASSABLE_UNDER(i))
2321       SET_PROPERTY(i, EP_PASSABLE, TRUE);
2322
2323     if (IS_WALKABLE_OVER(i) || IS_PASSABLE_OVER(i))
2324       SET_PROPERTY(i, EP_ACCESSIBLE_OVER, TRUE);
2325
2326     if (IS_WALKABLE_INSIDE(i) || IS_PASSABLE_INSIDE(i))
2327       SET_PROPERTY(i, EP_ACCESSIBLE_INSIDE, TRUE);
2328
2329     if (IS_WALKABLE_UNDER(i) || IS_PASSABLE_UNDER(i))
2330       SET_PROPERTY(i, EP_ACCESSIBLE_UNDER, TRUE);
2331
2332     if (IS_WALKABLE(i) || IS_PASSABLE(i))
2333       SET_PROPERTY(i, EP_ACCESSIBLE, TRUE);
2334
2335     /* ---------- WALL ----------------------------------------------------- */
2336     SET_PROPERTY(i, EP_WALL, TRUE);     /* default: element is wall */
2337
2338     for (j=0; no_wall_properties[j] != -1; j++)
2339       if (HAS_PROPERTY(i, no_wall_properties[j]) ||
2340           i >= EL_FIRST_RUNTIME_UNREAL)
2341         SET_PROPERTY(i, EP_WALL, FALSE);
2342
2343     if (IS_HISTORIC_WALL(i))
2344       SET_PROPERTY(i, EP_WALL, TRUE);
2345
2346     /* ---------- SOLID ---------------------------------------------------- */
2347     if (engine_version < VERSION_IDENT(2,2,0))
2348       SET_PROPERTY(i, EP_SOLID, IS_HISTORIC_SOLID(i));
2349     else
2350       SET_PROPERTY(i, EP_SOLID, (!IS_WALKABLE(i) &&
2351                                  !IS_DIGGABLE(i) &&
2352                                  !IS_COLLECTIBLE(i)));
2353
2354     /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
2355     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
2356       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
2357
2358     /* ---------- EXPLOSION_PROOF ------------------------------------------ */
2359     if (i == EL_FLAMES)
2360       SET_PROPERTY(i, EP_EXPLOSION_PROOF, TRUE);
2361     else if (engine_version < VERSION_IDENT(2,2,0))
2362       SET_PROPERTY(i, EP_EXPLOSION_PROOF, IS_INDESTRUCTIBLE(i));
2363     else
2364       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
2365                                            !IS_WALKABLE_OVER(i) &&
2366                                            !IS_WALKABLE_UNDER(i)));
2367   }
2368
2369 #if 0
2370   /* determine inactive elements (used for engine main loop optimization) */
2371   for (i=0; i < MAX_NUM_ELEMENTS; i++)
2372   {
2373     boolean active = FALSE;
2374
2375     for (j=0; i < NUM_ELEMENT_PROPERTIES; j++)
2376     {
2377       if (HAS_PROPERTY(i, j))
2378         active = TRUE;
2379     }
2380
2381 #if 0
2382     if (!active)
2383       SET_PROPERTY(i, EP_INACTIVE, TRUE);
2384 #endif
2385   }
2386 #endif
2387
2388   /* dynamically adjust element properties according to game engine version */
2389   {
2390     static int ep_em_slippery_wall[] =
2391     {
2392       EL_STEELWALL,
2393       EL_WALL,
2394       EL_EXPANDABLE_WALL,
2395       EL_EXPANDABLE_WALL_HORIZONTAL,
2396       EL_EXPANDABLE_WALL_VERTICAL,
2397       EL_EXPANDABLE_WALL_ANY,
2398       -1
2399     };
2400
2401     /* special EM style gems behaviour */
2402     for (i=0; ep_em_slippery_wall[i] != -1; i++)
2403       SET_PROPERTY(ep_em_slippery_wall[i], EP_EM_SLIPPERY_WALL,
2404                    level.em_slippery_gems);
2405
2406     /* "EL_EXPANDABLE_WALL_GROWING" wasn't slippery for EM gems in 2.0.1 */
2407     SET_PROPERTY(EL_EXPANDABLE_WALL_GROWING, EP_EM_SLIPPERY_WALL,
2408                  (level.em_slippery_gems &&
2409                   engine_version > VERSION_IDENT(2,0,1)));
2410   }
2411 }
2412
2413 static void InitGlobal()
2414 {
2415   global.autoplay_leveldir = NULL;
2416
2417   global.frames_per_second = 0;
2418   global.fps_slowdown = FALSE;
2419   global.fps_slowdown_factor = 1;
2420 }
2421
2422 void Execute_Command(char *command)
2423 {
2424   if (strcmp(command, "print graphicsinfo.conf") == 0)
2425   {
2426     int i;
2427
2428     printf("# You can configure additional/alternative image files here.\n");
2429     printf("# (The images below are default and therefore commented out.)\n");
2430     printf("\n");
2431     printf("%s\n", getFormattedSetupEntry("name", "Classic Graphics"));
2432     printf("\n");
2433     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
2434     printf("\n");
2435
2436     for (i=0; image_config[i].token != NULL; i++)
2437       printf("# %s\n",
2438              getFormattedSetupEntry(image_config[i].token,
2439                                     image_config[i].value));
2440
2441     exit(0);
2442   }
2443   else if (strcmp(command, "print soundsinfo.conf") == 0)
2444   {
2445     int i;
2446
2447     printf("# You can configure additional/alternative sound files here.\n");
2448     printf("# (The sounds below are default and therefore commented out.)\n");
2449     printf("\n");
2450     printf("%s\n", getFormattedSetupEntry("name", "Classic Sounds"));
2451     printf("\n");
2452     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
2453     printf("\n");
2454
2455     for (i=0; sound_config[i].token != NULL; i++)
2456       printf("# %s\n",
2457              getFormattedSetupEntry(sound_config[i].token,
2458                                     sound_config[i].value));
2459
2460     exit(0);
2461   }
2462   else if (strcmp(command, "print musicinfo.conf") == 0)
2463   {
2464     printf("# (Currently only \"name\" and \"sort_priority\" recognized.)\n");
2465     printf("\n");
2466     printf("%s\n", getFormattedSetupEntry("name", "Classic Music"));
2467     printf("\n");
2468     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
2469
2470     exit(0);
2471   }
2472   else if (strncmp(command, "dump level ", 11) == 0)
2473   {
2474     char *filename = &command[11];
2475
2476     if (access(filename, F_OK) != 0)
2477       Error(ERR_EXIT, "cannot open file '%s'", filename);
2478
2479     LoadLevelFromFilename(filename);
2480     DumpLevel(&level);
2481
2482     exit(0);
2483   }
2484   else if (strncmp(command, "dump tape ", 10) == 0)
2485   {
2486     char *filename = &command[10];
2487
2488     if (access(filename, F_OK) != 0)
2489       Error(ERR_EXIT, "cannot open file '%s'", filename);
2490
2491     LoadTapeFromFilename(filename);
2492     DumpTape(&tape);
2493
2494     exit(0);
2495   }
2496   else if (strncmp(command, "autoplay ", 9) == 0)
2497   {
2498     char *str_copy = getStringCopy(&command[9]);
2499     char *str_ptr = strchr(str_copy, ' ');
2500
2501     global.autoplay_leveldir = str_copy;
2502     global.autoplay_level_nr = -1;
2503
2504     if (str_ptr != NULL)
2505     {
2506       *str_ptr++ = '\0';                        /* terminate leveldir string */
2507       global.autoplay_level_nr = atoi(str_ptr); /* get level_nr value */
2508     }
2509   }
2510   else
2511   {
2512     Error(ERR_EXIT_HELP, "unrecognized command '%s'", command);
2513   }
2514 }
2515
2516 static void InitSetup()
2517 {
2518   LoadSetup();                                  /* global setup info */
2519
2520   /* set some options from setup file */
2521
2522   if (setup.options.verbose)
2523     options.verbose = TRUE;
2524 }
2525
2526 static void InitPlayerInfo()
2527 {
2528   int i;
2529
2530   /* choose default local player */
2531   local_player = &stored_player[0];
2532
2533   for (i=0; i<MAX_PLAYERS; i++)
2534     stored_player[i].connected = FALSE;
2535
2536   local_player->connected = TRUE;
2537 }
2538
2539 static void InitArtworkInfo()
2540 {
2541   LoadArtworkInfo();
2542 }
2543
2544 static char *get_element_class_token(int element)
2545 {
2546   char *element_class_name = element_info[element].class_name;
2547   char *element_class_token = checked_malloc(strlen(element_class_name) + 3);
2548
2549   sprintf(element_class_token, "[%s]", element_class_name);
2550
2551   return element_class_token;
2552 }
2553
2554 static void InitArtworkConfig()
2555 {
2556   static char *image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS + 1];
2557   static char *sound_id_prefix[MAX_NUM_ELEMENTS + MAX_NUM_ELEMENTS + 1];
2558   static char *action_id_suffix[NUM_ACTIONS + 1];
2559   static char *direction_id_suffix[NUM_DIRECTIONS + 1];
2560   static char *special_id_suffix[NUM_SPECIAL_GFX_ARGS + 1];
2561   static char *dummy[1] = { NULL };
2562   static char *ignore_image_tokens[] =
2563   {
2564     "name",
2565     "sort_priority",
2566     "global.num_toons",
2567     "menu.draw_xoffset",
2568     "menu.draw_yoffset",
2569     "menu.draw_xoffset.MAIN",
2570     "menu.draw_yoffset.MAIN",
2571     "menu.draw_xoffset.LEVELS",
2572     "menu.draw_yoffset.LEVELS",
2573     "menu.draw_xoffset.SCORES",
2574     "menu.draw_yoffset.SCORES",
2575     "menu.draw_xoffset.EDITOR",
2576     "menu.draw_yoffset.EDITOR",
2577     "menu.draw_xoffset.INFO",
2578     "menu.draw_yoffset.INFO",
2579     "menu.draw_xoffset.SETUP",
2580     "menu.draw_yoffset.SETUP",
2581     "door.step_offset",
2582     "door.step_delay",
2583     NULL
2584   };
2585   static char *ignore_sound_tokens[] =
2586   {
2587     "name",
2588     "sort_priority",
2589     NULL
2590   };
2591   int i;
2592
2593   for (i=0; i<MAX_NUM_ELEMENTS; i++)
2594     image_id_prefix[i] = element_info[i].token_name;
2595   for (i=0; i<NUM_FONTS; i++)
2596     image_id_prefix[MAX_NUM_ELEMENTS + i] = font_info[i].token_name;
2597   image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS] = NULL;
2598
2599   for (i=0; i<MAX_NUM_ELEMENTS; i++)
2600     sound_id_prefix[i] = element_info[i].token_name;
2601   for (i=0; i<MAX_NUM_ELEMENTS; i++)
2602     sound_id_prefix[MAX_NUM_ELEMENTS + i] = get_element_class_token(i);
2603   sound_id_prefix[MAX_NUM_ELEMENTS + MAX_NUM_ELEMENTS] = NULL;
2604
2605   for (i=0; i<NUM_ACTIONS; i++)
2606     action_id_suffix[i] = element_action_info[i].suffix;
2607   action_id_suffix[NUM_ACTIONS] = NULL;
2608
2609   for (i=0; i<NUM_DIRECTIONS; i++)
2610     direction_id_suffix[i] = element_direction_info[i].suffix;
2611   direction_id_suffix[NUM_DIRECTIONS] = NULL;
2612
2613   for (i=0; i<NUM_SPECIAL_GFX_ARGS; i++)
2614     special_id_suffix[i] = special_suffix_info[i].suffix;
2615   special_id_suffix[NUM_SPECIAL_GFX_ARGS] = NULL;
2616
2617   InitImageList(image_config, NUM_IMAGE_FILES, image_config_suffix,
2618                 image_id_prefix, action_id_suffix, direction_id_suffix,
2619                 special_id_suffix, ignore_image_tokens);
2620   InitSoundList(sound_config, NUM_SOUND_FILES, sound_config_suffix,
2621                 sound_id_prefix, action_id_suffix, dummy,
2622                 special_id_suffix, ignore_sound_tokens);
2623 }
2624
2625 static void InitMixer()
2626 {
2627   OpenAudio();
2628   StartMixer();
2629 }
2630
2631 void InitGfx()
2632 {
2633   char *filename_font_initial = NULL;
2634   Bitmap *bitmap_font_initial = NULL;
2635   int i, j;
2636
2637   /* determine settings for initial font (for displaying startup messages) */
2638   for (i=0; image_config[i].token != NULL; i++)
2639   {
2640     for (j=0; j < NUM_INITIAL_FONTS; j++)
2641     {
2642       char font_token[128];
2643       int len_font_token;
2644
2645       sprintf(font_token, "%s_%d", CONFIG_TOKEN_FONT_INITIAL, j + 1);
2646       len_font_token = strlen(font_token);
2647
2648       if (strcmp(image_config[i].token, font_token) == 0)
2649         filename_font_initial = image_config[i].value;
2650       else if (strlen(image_config[i].token) > len_font_token &&
2651                strncmp(image_config[i].token, font_token, len_font_token) == 0)
2652       {
2653         if (strcmp(&image_config[i].token[len_font_token], ".x") == 0)
2654           font_initial[j].src_x = atoi(image_config[i].value);
2655         else if (strcmp(&image_config[i].token[len_font_token], ".y") == 0)
2656           font_initial[j].src_y = atoi(image_config[i].value);
2657         else if (strcmp(&image_config[i].token[len_font_token], ".width") == 0)
2658           font_initial[j].width = atoi(image_config[i].value);
2659         else if (strcmp(&image_config[i].token[len_font_token],".height") == 0)
2660           font_initial[j].height = atoi(image_config[i].value);
2661       }
2662     }
2663   }
2664
2665   for (j=0; j < NUM_INITIAL_FONTS; j++)
2666   {
2667     font_initial[j].num_chars = DEFAULT_NUM_CHARS_PER_FONT;
2668     font_initial[j].num_chars_per_line = DEFAULT_NUM_CHARS_PER_LINE;
2669   }
2670
2671   if (filename_font_initial == NULL)    /* should not happen */
2672     Error(ERR_EXIT, "cannot get filename for '%s'", CONFIG_TOKEN_FONT_INITIAL);
2673
2674   /* create additional image buffers for double-buffering */
2675   bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
2676   bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
2677
2678   /* initialize screen properties */
2679   InitGfxFieldInfo(SX, SY, SXSIZE, SYSIZE,
2680                    REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE,
2681                    bitmap_db_field);
2682   InitGfxDoor1Info(DX, DY, DXSIZE, DYSIZE);
2683   InitGfxDoor2Info(VX, VY, VXSIZE, VYSIZE);
2684   InitGfxScrollbufferInfo(FXSIZE, FYSIZE);
2685
2686   bitmap_font_initial = LoadCustomImage(filename_font_initial);
2687
2688   for (j=0; j < NUM_INITIAL_FONTS; j++)
2689     font_initial[j].bitmap = bitmap_font_initial;
2690
2691   InitFontGraphicInfo();
2692
2693   DrawInitText(WINDOW_TITLE_STRING, 20, FC_YELLOW);
2694   DrawInitText(WINDOW_SUBTITLE_STRING, 50, FC_RED);
2695
2696   DrawInitText("Loading graphics:", 120, FC_GREEN);
2697
2698   InitTileClipmasks();
2699 }
2700
2701 void InitGfxBackground()
2702 {
2703   int x, y;
2704
2705   drawto = backbuffer;
2706   fieldbuffer = bitmap_db_field;
2707   SetDrawtoField(DRAW_BACKBUFFER);
2708
2709   BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, backbuffer,
2710              0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
2711   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
2712   ClearRectangle(bitmap_db_door, 0, 0, 3 * DXSIZE, DYSIZE + VYSIZE);
2713
2714   for (x=0; x<MAX_BUF_XSIZE; x++)
2715     for (y=0; y<MAX_BUF_YSIZE; y++)
2716       redraw[x][y] = 0;
2717   redraw_tiles = 0;
2718   redraw_mask = REDRAW_ALL;
2719 }
2720
2721 static void InitLevelInfo()
2722 {
2723   LoadLevelInfo();                              /* global level info */
2724   LoadLevelSetup_LastSeries();                  /* last played series info */
2725   LoadLevelSetup_SeriesInfo();                  /* last played level info */
2726 }
2727
2728 void InitLevelArtworkInfo()
2729 {
2730   LoadLevelArtworkInfo();
2731 }
2732
2733 static void InitImages()
2734 {
2735   ReloadCustomImages();
2736
2737   LoadCustomElementDescriptions();
2738   LoadSpecialMenuDesignSettings();
2739
2740   ReinitializeGraphics();
2741 }
2742
2743 static void InitSound()
2744 {
2745   InitReloadCustomSounds(artwork.snd_current->identifier);
2746   ReinitializeSounds();
2747 }
2748
2749 static void InitMusic()
2750 {
2751   InitReloadCustomMusic(artwork.mus_current->identifier);
2752   ReinitializeMusic();
2753 }
2754
2755 void InitNetworkServer()
2756 {
2757 #if defined(PLATFORM_UNIX)
2758   int nr_wanted;
2759 #endif
2760
2761   if (!options.network)
2762     return;
2763
2764 #if defined(PLATFORM_UNIX)
2765   nr_wanted = Request("Choose player", REQ_PLAYER | REQ_STAY_CLOSED);
2766
2767   if (!ConnectToServer(options.server_host, options.server_port))
2768     Error(ERR_EXIT, "cannot connect to network game server");
2769
2770   SendToServer_PlayerName(setup.player_name);
2771   SendToServer_ProtocolVersion();
2772
2773   if (nr_wanted)
2774     SendToServer_NrWanted(nr_wanted);
2775 #endif
2776 }
2777
2778 void ReloadCustomArtwork()
2779 {
2780   static char *leveldir_current_identifier = NULL;
2781   static boolean last_override_level_graphics = FALSE;
2782   static boolean last_override_level_sounds = FALSE;
2783   static boolean last_override_level_music = FALSE;
2784   /* identifier for new artwork; default: artwork configured in setup */
2785   char *gfx_new_identifier = artwork.gfx_current->identifier;
2786   char *snd_new_identifier = artwork.snd_current->identifier;
2787   char *mus_new_identifier = artwork.mus_current->identifier;
2788   boolean redraw_screen = FALSE;
2789
2790   if (leveldir_current_identifier == NULL)
2791     leveldir_current_identifier = leveldir_current->identifier;
2792
2793 #if 0
2794   printf("CURRENT GFX: '%s' ['%s']\n", artwork.gfx_current->identifier,
2795          leveldir_current->graphics_set);
2796   printf("CURRENT LEV: '%s' / '%s'\n", leveldir_current_identifier,
2797          leveldir_current->identifier);
2798 #endif
2799
2800 #if 0
2801   printf("graphics --> '%s' ('%s')\n",
2802          artwork.gfx_current_identifier, artwork.gfx_current->filename);
2803   printf("sounds   --> '%s' ('%s')\n",
2804          artwork.snd_current_identifier, artwork.snd_current->filename);
2805   printf("music    --> '%s' ('%s')\n",
2806          artwork.mus_current_identifier, artwork.mus_current->filename);
2807 #endif
2808
2809   /* leveldir_current may be invalid (level group, parent link) */
2810   if (!validLevelSeries(leveldir_current))
2811     return;
2812
2813   /* when a new level series was selected, check if there was a change
2814      in custom artwork stored in level series directory */
2815   if (leveldir_current_identifier != leveldir_current->identifier)
2816   {
2817     char *identifier_old = leveldir_current_identifier;
2818     char *identifier_new = leveldir_current->identifier;
2819
2820     if (getTreeInfoFromIdentifier(artwork.gfx_first, identifier_old) !=
2821         getTreeInfoFromIdentifier(artwork.gfx_first, identifier_new))
2822       gfx_new_identifier = identifier_new;
2823     if (getTreeInfoFromIdentifier(artwork.snd_first, identifier_old) !=
2824         getTreeInfoFromIdentifier(artwork.snd_first, identifier_new))
2825       snd_new_identifier = identifier_new;
2826     if (getTreeInfoFromIdentifier(artwork.mus_first, identifier_new) !=
2827         getTreeInfoFromIdentifier(artwork.mus_first, identifier_new))
2828       mus_new_identifier = identifier_new;
2829
2830     leveldir_current_identifier = leveldir_current->identifier;
2831   }
2832
2833   /* custom level artwork configured in level series configuration file
2834      always overrides custom level artwork stored in level series directory
2835      and (level independant) custom artwork configured in setup menue */
2836   if (leveldir_current->graphics_set != NULL)
2837     gfx_new_identifier = leveldir_current->graphics_set;
2838   if (leveldir_current->sounds_set != NULL)
2839     snd_new_identifier = leveldir_current->sounds_set;
2840   if (leveldir_current->music_set != NULL)
2841     mus_new_identifier = leveldir_current->music_set;
2842
2843   if (strcmp(artwork.gfx_current_identifier, gfx_new_identifier) != 0 ||
2844       last_override_level_graphics != setup.override_level_graphics)
2845   {
2846 #if 0
2847     printf("RELOADING GRAPHICS '%s' -> '%s' ('%s')\n",
2848            artwork.gfx_current_identifier,
2849            artwork.gfx_current->identifier,
2850            gfx_new_identifier);
2851 #endif
2852
2853     setLevelArtworkDir(artwork.gfx_first);
2854
2855     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
2856
2857     InitImages();
2858
2859     FreeTileClipmasks();
2860     InitTileClipmasks();
2861
2862     artwork.gfx_current_identifier = artwork.gfx_current->identifier;
2863     last_override_level_graphics = setup.override_level_graphics;
2864
2865     redraw_screen = TRUE;
2866   }
2867
2868   if (strcmp(artwork.snd_current_identifier, snd_new_identifier) != 0 ||
2869       last_override_level_sounds != setup.override_level_sounds)
2870   {
2871 #if 0
2872     printf("RELOADING SOUNDS '%s' -> '%s' ('%s')\n",
2873            artwork.snd_current_identifier,
2874            artwork.snd_current->identifier,
2875            snd_new_identifier);
2876 #endif
2877
2878     /* set artwork path to send it to the sound server process */
2879     setLevelArtworkDir(artwork.snd_first);
2880
2881     InitReloadCustomSounds(snd_new_identifier);
2882     ReinitializeSounds();
2883
2884     artwork.snd_current_identifier = artwork.snd_current->identifier;
2885     last_override_level_sounds = setup.override_level_sounds;
2886
2887     redraw_screen = TRUE;
2888   }
2889
2890   if (strcmp(artwork.mus_current_identifier, mus_new_identifier) != 0 ||
2891       last_override_level_music != setup.override_level_music)
2892   {
2893     /* set artwork path to send it to the sound server process */
2894     setLevelArtworkDir(artwork.mus_first);
2895
2896     InitReloadCustomMusic(mus_new_identifier);
2897     ReinitializeMusic();
2898
2899     artwork.mus_current_identifier = artwork.mus_current->identifier;
2900     last_override_level_music = setup.override_level_music;
2901
2902     redraw_screen = TRUE;
2903   }
2904
2905   if (redraw_screen)
2906   {
2907     InitGfxBackground();
2908
2909     /* force redraw of (open or closed) door graphics */
2910     SetDoorState(DOOR_OPEN_ALL);
2911     CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
2912   }
2913 }
2914
2915
2916 /* ========================================================================= */
2917 /* OpenAll()                                                                 */
2918 /* ========================================================================= */
2919
2920 void OpenAll()
2921 {
2922   InitGlobal();         /* initialize some global variables */
2923
2924   if (options.execute_command)
2925     Execute_Command(options.execute_command);
2926
2927   if (options.serveronly)
2928   {
2929 #if defined(PLATFORM_UNIX)
2930     NetworkServer(options.server_port, options.serveronly);
2931 #else
2932     Error(ERR_WARN, "networking only supported in Unix version");
2933 #endif
2934     exit(0);    /* never reached */
2935   }
2936
2937   InitSetup();
2938
2939   InitPlayerInfo();
2940   InitArtworkInfo();            /* needed before loading gfx, sound & music */
2941   InitArtworkConfig();          /* needed before forking sound child process */
2942   InitMixer();
2943
2944   InitCounter();
2945
2946   InitRND(NEW_RANDOMIZE);
2947   InitSimpleRND(NEW_RANDOMIZE);
2948
2949   InitJoysticks();
2950
2951   InitVideoDisplay();
2952   InitVideoBuffer(&backbuffer, &window, WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH,
2953                   setup.fullscreen);
2954
2955   InitEventFilter(FilterMouseMotionEvents);
2956
2957   InitElementPropertiesStatic();
2958
2959   InitGfx();
2960
2961   InitLevelInfo();
2962   InitLevelArtworkInfo();
2963
2964   InitImages();                 /* needs to know current level directory */
2965   InitSound();                  /* needs to know current level directory */
2966   InitMusic();                  /* needs to know current level directory */
2967
2968   InitGfxBackground();
2969
2970   if (global.autoplay_leveldir)
2971   {
2972     AutoPlayTape();
2973     return;
2974   }
2975
2976   game_status = GAME_MODE_MAIN;
2977
2978   DrawMainMenu();
2979
2980   InitNetworkServer();
2981 }
2982
2983 void CloseAllAndExit(int exit_value)
2984 {
2985   StopSounds();
2986   FreeAllSounds();
2987   FreeAllMusic();
2988   CloseAudio();         /* called after freeing sounds (needed for SDL) */
2989
2990   FreeAllImages();
2991   FreeTileClipmasks();
2992
2993   CloseVideoDisplay();
2994   ClosePlatformDependantStuff();
2995
2996   exit(exit_value);
2997 }