9a68e2ad5ebc7b8c0c38f07078c6846320f05a17
[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_diggable[] =
1074   {
1075     EL_SAND,
1076     EL_SP_BASE,
1077     EL_SP_BUGGY_BASE,
1078     EL_SP_BUGGY_BASE_ACTIVATING,
1079     EL_TRAP,
1080     EL_INVISIBLE_SAND,
1081     EL_INVISIBLE_SAND_ACTIVE,
1082 #if 1
1083     EL_LANDMINE,
1084     EL_TRAP_ACTIVE,
1085     EL_SP_BUGGY_BASE_ACTIVE,
1086 #endif
1087     -1
1088   };
1089
1090   static int ep_collectible[] =
1091   {
1092     EL_BD_DIAMOND,
1093     EL_EMERALD,
1094     EL_DIAMOND,
1095     EL_EMERALD_YELLOW,
1096     EL_EMERALD_RED,
1097     EL_EMERALD_PURPLE,
1098     EL_KEY_1,
1099     EL_KEY_2,
1100     EL_KEY_3,
1101     EL_KEY_4,
1102     EL_EM_KEY_1,
1103     EL_EM_KEY_2,
1104     EL_EM_KEY_3,
1105     EL_EM_KEY_4,
1106     EL_DYNAMITE,
1107     EL_DYNABOMB_INCREASE_NUMBER,
1108     EL_DYNABOMB_INCREASE_SIZE,
1109     EL_DYNABOMB_INCREASE_POWER,
1110     EL_SP_INFOTRON,
1111     EL_SP_DISK_RED,
1112     EL_PEARL,
1113     EL_CRYSTAL,
1114     EL_KEY_WHITE,
1115     EL_SHIELD_NORMAL,
1116     EL_SHIELD_DEADLY,
1117     EL_EXTRA_TIME,
1118     EL_ENVELOPE,
1119     EL_SPEED_PILL,
1120     -1
1121   };
1122
1123   static int ep_indestructible[] =
1124   {
1125     EL_STEELWALL,
1126     EL_ACID,
1127     EL_ACID_POOL_TOPLEFT,
1128     EL_ACID_POOL_TOPRIGHT,
1129     EL_ACID_POOL_BOTTOMLEFT,
1130     EL_ACID_POOL_BOTTOM,
1131     EL_ACID_POOL_BOTTOMRIGHT,
1132     EL_SP_HARDWARE_GRAY,
1133     EL_SP_HARDWARE_GREEN,
1134     EL_SP_HARDWARE_BLUE,
1135     EL_SP_HARDWARE_RED,
1136     EL_SP_HARDWARE_YELLOW,
1137     EL_SP_HARDWARE_BASE_1,
1138     EL_SP_HARDWARE_BASE_2,
1139     EL_SP_HARDWARE_BASE_3,
1140     EL_SP_HARDWARE_BASE_4,
1141     EL_SP_HARDWARE_BASE_5,
1142     EL_SP_HARDWARE_BASE_6,
1143     EL_INVISIBLE_STEELWALL,
1144     EL_INVISIBLE_STEELWALL_ACTIVE,
1145     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1146     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1147     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1148     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1149     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1150     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1151     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1152     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1153     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1154     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1155     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1156     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1157     EL_LIGHT_SWITCH,
1158     EL_LIGHT_SWITCH_ACTIVE,
1159     EL_SIGN_EXCLAMATION,
1160     EL_SIGN_RADIOACTIVITY,
1161     EL_SIGN_STOP,
1162     EL_SIGN_WHEELCHAIR,
1163     EL_SIGN_PARKING,
1164     EL_SIGN_ONEWAY,
1165     EL_SIGN_HEART,
1166     EL_SIGN_TRIANGLE,
1167     EL_SIGN_ROUND,
1168     EL_SIGN_EXIT,
1169     EL_SIGN_YINYANG,
1170     EL_SIGN_OTHER,
1171     EL_STEELWALL_SLANTED,
1172     EL_EMC_STEELWALL_1,
1173     EL_EMC_STEELWALL_2,
1174     EL_EMC_STEELWALL_3,
1175     EL_EMC_STEELWALL_4,
1176     EL_CRYSTAL,
1177     EL_GATE_1,
1178     EL_GATE_2,
1179     EL_GATE_3,
1180     EL_GATE_4,
1181     EL_GATE_1_GRAY,
1182     EL_GATE_2_GRAY,
1183     EL_GATE_3_GRAY,
1184     EL_GATE_4_GRAY,
1185     EL_EM_GATE_1,
1186     EL_EM_GATE_2,
1187     EL_EM_GATE_3,
1188     EL_EM_GATE_4,
1189     EL_EM_GATE_1_GRAY,
1190     EL_EM_GATE_2_GRAY,
1191     EL_EM_GATE_3_GRAY,
1192     EL_EM_GATE_4_GRAY,
1193     EL_SWITCHGATE_OPEN,
1194     EL_SWITCHGATE_OPENING,
1195     EL_SWITCHGATE_CLOSED,
1196     EL_SWITCHGATE_CLOSING,
1197     EL_TIMEGATE_OPEN,
1198     EL_TIMEGATE_OPENING,
1199     EL_TIMEGATE_CLOSED,
1200     EL_TIMEGATE_CLOSING,
1201     EL_TUBE_ANY,
1202     EL_TUBE_VERTICAL,
1203     EL_TUBE_HORIZONTAL,
1204     EL_TUBE_VERTICAL_LEFT,
1205     EL_TUBE_VERTICAL_RIGHT,
1206     EL_TUBE_HORIZONTAL_UP,
1207     EL_TUBE_HORIZONTAL_DOWN,
1208     EL_TUBE_LEFT_UP,
1209     EL_TUBE_LEFT_DOWN,
1210     EL_TUBE_RIGHT_UP,
1211     EL_TUBE_RIGHT_DOWN,
1212     -1
1213   };
1214
1215   static int ep_slippery[] =
1216   {
1217     EL_WALL_CRUMBLED,
1218     EL_BD_WALL,
1219     EL_ROCK,
1220     EL_BD_ROCK,
1221     EL_EMERALD,
1222     EL_BD_DIAMOND,
1223     EL_EMERALD_YELLOW,
1224     EL_EMERALD_RED,
1225     EL_EMERALD_PURPLE,
1226     EL_DIAMOND,
1227     EL_BOMB,
1228     EL_NUT,
1229     EL_ROBOT_WHEEL_ACTIVE,
1230     EL_ROBOT_WHEEL,
1231     EL_TIME_ORB_FULL,
1232     EL_TIME_ORB_EMPTY,
1233     EL_LAMP_ACTIVE,
1234     EL_LAMP,
1235     EL_ACID_POOL_TOPLEFT,
1236     EL_ACID_POOL_TOPRIGHT,
1237     EL_SATELLITE,
1238     EL_SP_ZONK,
1239     EL_SP_INFOTRON,
1240     EL_SP_CHIP_SINGLE,
1241     EL_SP_CHIP_LEFT,
1242     EL_SP_CHIP_RIGHT,
1243     EL_SP_CHIP_TOP,
1244     EL_SP_CHIP_BOTTOM,
1245     EL_SPEED_PILL,
1246     EL_STEELWALL_SLANTED,
1247     EL_PEARL,
1248     EL_CRYSTAL,
1249     -1
1250   };
1251
1252   static int ep_can_fall[] =
1253   {
1254     EL_ROCK,
1255     EL_BD_ROCK,
1256     EL_EMERALD,
1257     EL_BD_DIAMOND,
1258     EL_EMERALD_YELLOW,
1259     EL_EMERALD_RED,
1260     EL_EMERALD_PURPLE,
1261     EL_DIAMOND,
1262     EL_BOMB,
1263     EL_NUT,
1264     EL_AMOEBA_DROP,
1265     EL_QUICKSAND_FULL,
1266     EL_MAGIC_WALL_FULL,
1267     EL_BD_MAGIC_WALL_FULL,
1268     EL_TIME_ORB_FULL,
1269     EL_TIME_ORB_EMPTY,
1270     EL_SP_ZONK,
1271     EL_SP_INFOTRON,
1272     EL_SP_DISK_ORANGE,
1273     EL_PEARL,
1274     EL_CRYSTAL,
1275     EL_SPRING,
1276     EL_DX_SUPABOMB,
1277     -1
1278   };
1279
1280   static int ep_can_smash[] =
1281   {
1282     EL_ROCK,
1283     EL_BD_ROCK,
1284     EL_EMERALD,
1285     EL_BD_DIAMOND,
1286     EL_EMERALD_YELLOW,
1287     EL_EMERALD_RED,
1288     EL_EMERALD_PURPLE,
1289     EL_DIAMOND,
1290     EL_BOMB,
1291     EL_NUT,
1292     EL_AMOEBA_DROP,
1293     EL_TIME_ORB_FULL,
1294     EL_TIME_ORB_EMPTY,
1295     EL_SP_ZONK,
1296     EL_SP_INFOTRON,
1297     EL_SP_DISK_ORANGE,
1298     EL_PEARL,
1299     EL_CRYSTAL,
1300     EL_SPRING,
1301     EL_DX_SUPABOMB,
1302     -1
1303   };
1304
1305   static int ep_walkable_over[] =
1306   {
1307     EL_EMPTY_SPACE,
1308     EL_SP_EMPTY_SPACE,
1309     EL_SOKOBAN_FIELD_EMPTY,
1310     EL_EXIT_OPEN,
1311     EL_SP_EXIT_OPEN,
1312     EL_GATE_1,
1313     EL_GATE_2,
1314     EL_GATE_3,
1315     EL_GATE_4,
1316     EL_GATE_1_GRAY,
1317     EL_GATE_2_GRAY,
1318     EL_GATE_3_GRAY,
1319     EL_GATE_4_GRAY,
1320     -1
1321   };
1322
1323   static int ep_walkable_inside[] =
1324   {
1325     EL_TUBE_ANY,
1326     EL_TUBE_VERTICAL,
1327     EL_TUBE_HORIZONTAL,
1328     EL_TUBE_VERTICAL_LEFT,
1329     EL_TUBE_VERTICAL_RIGHT,
1330     EL_TUBE_HORIZONTAL_UP,
1331     EL_TUBE_HORIZONTAL_DOWN,
1332     EL_TUBE_LEFT_UP,
1333     EL_TUBE_LEFT_DOWN,
1334     EL_TUBE_RIGHT_UP,
1335     EL_TUBE_RIGHT_DOWN,
1336     -1
1337   };
1338
1339   static int ep_walkable_under[] =
1340   {
1341     -1
1342   };
1343
1344   static int ep_passable_over[] =
1345   {
1346     EL_EM_GATE_1,
1347     EL_EM_GATE_2,
1348     EL_EM_GATE_3,
1349     EL_EM_GATE_4,
1350     EL_EM_GATE_1_GRAY,
1351     EL_EM_GATE_2_GRAY,
1352     EL_EM_GATE_3_GRAY,
1353     EL_EM_GATE_4_GRAY,
1354     EL_SWITCHGATE_OPEN,
1355     EL_TIMEGATE_OPEN,
1356     -1
1357   };
1358
1359   static int ep_passable_inside[] =
1360   {
1361     EL_SP_PORT_LEFT,
1362     EL_SP_PORT_RIGHT,
1363     EL_SP_PORT_UP,
1364     EL_SP_PORT_DOWN,
1365     EL_SP_PORT_HORIZONTAL,
1366     EL_SP_PORT_VERTICAL,
1367     EL_SP_PORT_ANY,
1368     EL_SP_GRAVITY_PORT_LEFT,
1369     EL_SP_GRAVITY_PORT_RIGHT,
1370     EL_SP_GRAVITY_PORT_UP,
1371     EL_SP_GRAVITY_PORT_DOWN,
1372     -1
1373   };
1374
1375   static int ep_passable_under[] =
1376   {
1377     -1
1378   };
1379
1380   static int ep_pushable[] =
1381   {
1382     EL_ROCK,
1383     EL_BD_ROCK,
1384     EL_BOMB,
1385     EL_NUT,
1386     EL_TIME_ORB_EMPTY,
1387     EL_SOKOBAN_FIELD_FULL,
1388     EL_SOKOBAN_OBJECT,
1389     EL_SATELLITE,
1390     EL_SP_ZONK,
1391     EL_SP_DISK_ORANGE,
1392     EL_SP_DISK_YELLOW,
1393     EL_BALLOON,
1394     EL_SPRING,
1395     EL_DX_SUPABOMB,
1396     -1
1397   };
1398
1399   static int ep_player[] =
1400   {
1401     EL_PLAYER_1,
1402     EL_PLAYER_2,
1403     EL_PLAYER_3,
1404     EL_PLAYER_4,
1405     -1
1406   };
1407
1408   static int ep_can_be_crumbled[] =
1409   {
1410     EL_SAND,
1411     EL_LANDMINE,
1412     EL_TRAP,
1413     EL_TRAP_ACTIVE,
1414     -1
1415   };
1416
1417   static int ep_can_move[] =
1418   {
1419     /* only stored in level file */
1420     EL_BUG_RIGHT,
1421     EL_BUG_UP,
1422     EL_BUG_LEFT,
1423     EL_BUG_DOWN,
1424     EL_SPACESHIP_RIGHT,
1425     EL_SPACESHIP_UP,
1426     EL_SPACESHIP_LEFT,
1427     EL_SPACESHIP_DOWN,
1428     EL_BD_BUTTERFLY_RIGHT,
1429     EL_BD_BUTTERFLY_UP,
1430     EL_BD_BUTTERFLY_LEFT,
1431     EL_BD_BUTTERFLY_DOWN,
1432     EL_BD_FIREFLY_RIGHT,
1433     EL_BD_FIREFLY_UP,
1434     EL_BD_FIREFLY_LEFT,
1435     EL_BD_FIREFLY_DOWN,
1436     EL_PACMAN_RIGHT,
1437     EL_PACMAN_UP,
1438     EL_PACMAN_LEFT,
1439     EL_PACMAN_DOWN,
1440
1441     /* level file and runtime elements */
1442     EL_BUG,
1443     EL_SPACESHIP,
1444     EL_BD_BUTTERFLY,
1445     EL_BD_FIREFLY,
1446     EL_YAMYAM,
1447     EL_DARK_YAMYAM,
1448     EL_ROBOT,
1449     EL_PACMAN,
1450     EL_MOLE,
1451     EL_PENGUIN,
1452     EL_PIG,
1453     EL_DRAGON,
1454     EL_SATELLITE,
1455     EL_SP_SNIKSNAK,
1456     EL_SP_ELECTRON,
1457     EL_BALLOON,
1458     EL_SPRING,
1459     -1
1460   };
1461
1462   static int ep_can_change[] =
1463   {
1464     EL_ROCK,
1465     EL_BD_ROCK,
1466     EL_EMERALD,
1467     EL_BD_DIAMOND,
1468     EL_EMERALD_YELLOW,
1469     EL_EMERALD_RED,
1470     EL_EMERALD_PURPLE,
1471     EL_DIAMOND,
1472     -1
1473   };
1474
1475   static int ep_dont_touch[] =
1476   {
1477     EL_BUG,
1478     EL_SPACESHIP,
1479     EL_BD_BUTTERFLY,
1480     EL_BD_FIREFLY,
1481     -1
1482   };
1483
1484   static int ep_enemy[] =
1485   {
1486     EL_BUG,
1487     EL_SPACESHIP,
1488     EL_BD_BUTTERFLY,
1489     EL_BD_FIREFLY,
1490     EL_YAMYAM,
1491     EL_DARK_YAMYAM,
1492     EL_ROBOT,
1493     EL_PACMAN,
1494     EL_SP_SNIKSNAK,
1495     EL_SP_ELECTRON,
1496     -1
1497   };
1498
1499   static int ep_dont_go_to[] =
1500   {
1501     EL_BUG,
1502     EL_SPACESHIP,
1503     EL_BD_BUTTERFLY,
1504     EL_BD_FIREFLY,
1505     EL_YAMYAM,
1506     EL_DARK_YAMYAM,
1507     EL_ROBOT,
1508     EL_PACMAN,
1509     EL_AMOEBA_DROP,
1510     EL_ACID,
1511     EL_SP_SNIKSNAK,
1512     EL_SP_ELECTRON,
1513     EL_SP_BUGGY_BASE_ACTIVE,
1514     EL_TRAP_ACTIVE,
1515     EL_LANDMINE,
1516     -1
1517   };
1518
1519   static int ep_explosive[] =
1520   {
1521     EL_BOMB,
1522     EL_DYNAMITE_ACTIVE,
1523     EL_DYNAMITE,
1524     EL_DYNABOMB_PLAYER_1_ACTIVE,
1525     EL_DYNABOMB_PLAYER_2_ACTIVE,
1526     EL_DYNABOMB_PLAYER_3_ACTIVE,
1527     EL_DYNABOMB_PLAYER_4_ACTIVE,
1528     EL_DYNABOMB_INCREASE_NUMBER,
1529     EL_DYNABOMB_INCREASE_SIZE,
1530     EL_DYNABOMB_INCREASE_POWER,
1531     EL_SP_DISK_RED_ACTIVE,
1532     EL_BUG,
1533     EL_MOLE,
1534     EL_PENGUIN,
1535     EL_PIG,
1536     EL_DRAGON,
1537     EL_SATELLITE,
1538     EL_SP_DISK_RED,
1539     EL_SP_DISK_ORANGE,
1540     EL_SP_DISK_YELLOW,
1541     EL_SP_SNIKSNAK,
1542     EL_SP_ELECTRON,
1543     EL_DX_SUPABOMB,
1544     -1
1545   };
1546
1547   static int ep_bd_element[] =
1548   {
1549     EL_EMPTY,
1550     EL_SAND,
1551     EL_WALL_CRUMBLED,
1552     EL_BD_WALL,
1553     EL_ROCK,
1554     EL_BD_ROCK,
1555     EL_BD_DIAMOND,
1556     EL_BD_MAGIC_WALL,
1557     EL_EXIT_CLOSED,
1558     EL_EXIT_OPEN,
1559     EL_STEELWALL,
1560     EL_PLAYER_1,
1561     EL_BD_FIREFLY,
1562     EL_BD_FIREFLY_1,
1563     EL_BD_FIREFLY_2,
1564     EL_BD_FIREFLY_3,
1565     EL_BD_FIREFLY_4,
1566     EL_BD_BUTTERFLY,
1567     EL_BD_BUTTERFLY_1,
1568     EL_BD_BUTTERFLY_2,
1569     EL_BD_BUTTERFLY_3,
1570     EL_BD_BUTTERFLY_4,
1571     EL_BD_AMOEBA,
1572     EL_CHAR_QUESTION,
1573     -1
1574   };
1575
1576   static int ep_sp_element[] =
1577   {
1578     EL_SP_EMPTY,
1579     EL_SP_ZONK,
1580     EL_SP_BASE,
1581     EL_SP_MURPHY,
1582     EL_SP_INFOTRON,
1583     EL_SP_CHIP_SINGLE,
1584     EL_SP_HARDWARE_GRAY,
1585     EL_SP_EXIT_CLOSED,
1586     EL_SP_EXIT_OPEN,
1587     EL_SP_DISK_ORANGE,
1588     EL_SP_PORT_RIGHT,
1589     EL_SP_PORT_DOWN,
1590     EL_SP_PORT_LEFT,
1591     EL_SP_PORT_UP,
1592     EL_SP_GRAVITY_PORT_RIGHT,
1593     EL_SP_GRAVITY_PORT_DOWN,
1594     EL_SP_GRAVITY_PORT_LEFT,
1595     EL_SP_GRAVITY_PORT_UP,
1596     EL_SP_SNIKSNAK,
1597     EL_SP_DISK_YELLOW,
1598     EL_SP_TERMINAL,
1599     EL_SP_DISK_RED,
1600     EL_SP_PORT_VERTICAL,
1601     EL_SP_PORT_HORIZONTAL,
1602     EL_SP_PORT_ANY,
1603     EL_SP_ELECTRON,
1604     EL_SP_BUGGY_BASE,
1605     EL_SP_CHIP_LEFT,
1606     EL_SP_CHIP_RIGHT,
1607     EL_SP_HARDWARE_BASE_1,
1608     EL_SP_HARDWARE_GREEN,
1609     EL_SP_HARDWARE_BLUE,
1610     EL_SP_HARDWARE_RED,
1611     EL_SP_HARDWARE_YELLOW,
1612     EL_SP_HARDWARE_BASE_2,
1613     EL_SP_HARDWARE_BASE_3,
1614     EL_SP_HARDWARE_BASE_4,
1615     EL_SP_HARDWARE_BASE_5,
1616     EL_SP_HARDWARE_BASE_6,
1617     EL_SP_CHIP_TOP,
1618     EL_SP_CHIP_BOTTOM,
1619     /* additional elements that appeared in newer Supaplex levels */
1620     EL_INVISIBLE_WALL,
1621     /* more than one murphy in a level results in an inactive clone */
1622     EL_SP_MURPHY_CLONE,
1623     -1
1624   };
1625
1626   static int ep_sb_element[] =
1627   {
1628     EL_EMPTY,
1629     EL_STEELWALL,
1630     EL_SOKOBAN_OBJECT,
1631     EL_SOKOBAN_FIELD_EMPTY,
1632     EL_SOKOBAN_FIELD_FULL,
1633     EL_PLAYER_1,
1634     EL_INVISIBLE_STEELWALL,
1635     -1
1636   };
1637
1638   static int ep_gem[] =
1639   {
1640     EL_EMERALD,
1641     EL_BD_DIAMOND,
1642     EL_EMERALD_YELLOW,
1643     EL_EMERALD_RED,
1644     EL_EMERALD_PURPLE,
1645     EL_DIAMOND,
1646     -1
1647   };
1648
1649   static int ep_food_dark_yamyam[] =
1650   {
1651     EL_SAND,
1652     EL_BUG,
1653     EL_SPACESHIP,
1654     EL_BD_BUTTERFLY,
1655     EL_BD_FIREFLY,
1656     EL_YAMYAM,
1657     EL_ROBOT,
1658     EL_PACMAN,
1659     EL_AMOEBA_DROP,
1660     EL_AMOEBA_DEAD,
1661     EL_AMOEBA_WET,
1662     EL_AMOEBA_DRY,
1663     EL_AMOEBA_FULL,
1664     EL_BD_AMOEBA,
1665     EL_EMERALD,
1666     EL_BD_DIAMOND,
1667     EL_EMERALD_YELLOW,
1668     EL_EMERALD_RED,
1669     EL_EMERALD_PURPLE,
1670     EL_DIAMOND,
1671     EL_PEARL,
1672     EL_CRYSTAL,
1673     -1
1674   };
1675
1676   static int ep_food_penguin[] =
1677   {
1678     EL_EMERALD,
1679     EL_BD_DIAMOND,
1680     EL_EMERALD_YELLOW,
1681     EL_EMERALD_RED,
1682     EL_EMERALD_PURPLE,
1683     EL_DIAMOND,
1684     EL_PEARL,
1685     EL_CRYSTAL,
1686     -1
1687   };
1688
1689   static int ep_historic_wall[] =
1690   {
1691     EL_STEELWALL,
1692     EL_GATE_1,
1693     EL_GATE_2,
1694     EL_GATE_3,
1695     EL_GATE_4,
1696     EL_GATE_1_GRAY,
1697     EL_GATE_2_GRAY,
1698     EL_GATE_3_GRAY,
1699     EL_GATE_4_GRAY,
1700     EL_EM_GATE_1,
1701     EL_EM_GATE_2,
1702     EL_EM_GATE_3,
1703     EL_EM_GATE_4,
1704     EL_EM_GATE_1_GRAY,
1705     EL_EM_GATE_2_GRAY,
1706     EL_EM_GATE_3_GRAY,
1707     EL_EM_GATE_4_GRAY,
1708     EL_EXIT_CLOSED,
1709     EL_EXIT_OPENING,
1710     EL_EXIT_OPEN,
1711     EL_WALL,
1712     EL_WALL_CRUMBLED,
1713     EL_EXPANDABLE_WALL,
1714     EL_EXPANDABLE_WALL_HORIZONTAL,
1715     EL_EXPANDABLE_WALL_VERTICAL,
1716     EL_EXPANDABLE_WALL_ANY,
1717     EL_EXPANDABLE_WALL_GROWING,
1718     EL_BD_WALL,
1719     EL_SP_CHIP_SINGLE,
1720     EL_SP_CHIP_LEFT,
1721     EL_SP_CHIP_RIGHT,
1722     EL_SP_CHIP_TOP,
1723     EL_SP_CHIP_BOTTOM,
1724     EL_SP_HARDWARE_GRAY,
1725     EL_SP_HARDWARE_GREEN,
1726     EL_SP_HARDWARE_BLUE,
1727     EL_SP_HARDWARE_RED,
1728     EL_SP_HARDWARE_YELLOW,
1729     EL_SP_HARDWARE_BASE_1,
1730     EL_SP_HARDWARE_BASE_2,
1731     EL_SP_HARDWARE_BASE_3,
1732     EL_SP_HARDWARE_BASE_4,
1733     EL_SP_HARDWARE_BASE_5,
1734     EL_SP_HARDWARE_BASE_6,
1735     EL_SP_TERMINAL,
1736     EL_SP_TERMINAL_ACTIVE,
1737     EL_SP_EXIT_CLOSED,
1738     EL_SP_EXIT_OPEN,
1739     EL_INVISIBLE_STEELWALL,
1740     EL_INVISIBLE_STEELWALL_ACTIVE,
1741     EL_INVISIBLE_WALL,
1742     EL_INVISIBLE_WALL_ACTIVE,
1743     EL_STEELWALL_SLANTED,
1744     EL_EMC_STEELWALL_1,
1745     EL_EMC_STEELWALL_2,
1746     EL_EMC_STEELWALL_3,
1747     EL_EMC_STEELWALL_4,
1748     EL_EMC_WALL_1,
1749     EL_EMC_WALL_2,
1750     EL_EMC_WALL_3,
1751     EL_EMC_WALL_4,
1752     EL_EMC_WALL_5,
1753     EL_EMC_WALL_6,
1754     EL_EMC_WALL_7,
1755     EL_EMC_WALL_8,
1756     -1
1757   };
1758
1759   static int ep_historic_solid[] =
1760   {
1761     EL_WALL,
1762     EL_EXPANDABLE_WALL,
1763     EL_EXPANDABLE_WALL_HORIZONTAL,
1764     EL_EXPANDABLE_WALL_VERTICAL,
1765     EL_EXPANDABLE_WALL_ANY,
1766     EL_BD_WALL,
1767     EL_WALL_CRUMBLED,
1768     EL_EXIT_CLOSED,
1769     EL_EXIT_OPENING,
1770     EL_EXIT_OPEN,
1771     EL_AMOEBA_DEAD,
1772     EL_AMOEBA_WET,
1773     EL_AMOEBA_DRY,
1774     EL_AMOEBA_FULL,
1775     EL_BD_AMOEBA,
1776     EL_QUICKSAND_EMPTY,
1777     EL_QUICKSAND_FULL,
1778     EL_QUICKSAND_FILLING,
1779     EL_QUICKSAND_EMPTYING,
1780     EL_MAGIC_WALL,
1781     EL_MAGIC_WALL_ACTIVE,
1782     EL_MAGIC_WALL_EMPTYING,
1783     EL_MAGIC_WALL_FILLING,
1784     EL_MAGIC_WALL_FULL,
1785     EL_MAGIC_WALL_DEAD,
1786     EL_BD_MAGIC_WALL,
1787     EL_BD_MAGIC_WALL_ACTIVE,
1788     EL_BD_MAGIC_WALL_EMPTYING,
1789     EL_BD_MAGIC_WALL_FULL,
1790     EL_BD_MAGIC_WALL_FILLING,
1791     EL_BD_MAGIC_WALL_DEAD,
1792     EL_GAME_OF_LIFE,
1793     EL_BIOMAZE,
1794     EL_SP_CHIP_SINGLE,
1795     EL_SP_CHIP_LEFT,
1796     EL_SP_CHIP_RIGHT,
1797     EL_SP_CHIP_TOP,
1798     EL_SP_CHIP_BOTTOM,
1799     EL_SP_TERMINAL,
1800     EL_SP_TERMINAL_ACTIVE,
1801     EL_SP_EXIT_CLOSED,
1802     EL_SP_EXIT_OPEN,
1803     EL_INVISIBLE_WALL,
1804     EL_INVISIBLE_WALL_ACTIVE,
1805     EL_SWITCHGATE_SWITCH_UP,
1806     EL_SWITCHGATE_SWITCH_DOWN,
1807     EL_TIMEGATE_SWITCH,
1808     EL_TIMEGATE_SWITCH_ACTIVE,
1809     EL_EMC_WALL_1,
1810     EL_EMC_WALL_2,
1811     EL_EMC_WALL_3,
1812     EL_EMC_WALL_4,
1813     EL_EMC_WALL_5,
1814     EL_EMC_WALL_6,
1815     EL_EMC_WALL_7,
1816     EL_EMC_WALL_8,
1817     EL_WALL_PEARL,
1818     EL_WALL_CRYSTAL,
1819
1820     /* the following elements are a direct copy of "indestructible" elements,
1821        except "EL_ACID", which is "indestructible", but not "solid"! */
1822 #if 0
1823     EL_ACID,
1824 #endif
1825     EL_STEELWALL,
1826     EL_ACID_POOL_TOPLEFT,
1827     EL_ACID_POOL_TOPRIGHT,
1828     EL_ACID_POOL_BOTTOMLEFT,
1829     EL_ACID_POOL_BOTTOM,
1830     EL_ACID_POOL_BOTTOMRIGHT,
1831     EL_SP_HARDWARE_GRAY,
1832     EL_SP_HARDWARE_GREEN,
1833     EL_SP_HARDWARE_BLUE,
1834     EL_SP_HARDWARE_RED,
1835     EL_SP_HARDWARE_YELLOW,
1836     EL_SP_HARDWARE_BASE_1,
1837     EL_SP_HARDWARE_BASE_2,
1838     EL_SP_HARDWARE_BASE_3,
1839     EL_SP_HARDWARE_BASE_4,
1840     EL_SP_HARDWARE_BASE_5,
1841     EL_SP_HARDWARE_BASE_6,
1842     EL_INVISIBLE_STEELWALL,
1843     EL_INVISIBLE_STEELWALL_ACTIVE,
1844     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1845     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1846     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1847     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1848     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1849     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1850     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1851     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1852     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1853     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1854     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1855     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1856     EL_LIGHT_SWITCH,
1857     EL_LIGHT_SWITCH_ACTIVE,
1858     EL_SIGN_EXCLAMATION,
1859     EL_SIGN_RADIOACTIVITY,
1860     EL_SIGN_STOP,
1861     EL_SIGN_WHEELCHAIR,
1862     EL_SIGN_PARKING,
1863     EL_SIGN_ONEWAY,
1864     EL_SIGN_HEART,
1865     EL_SIGN_TRIANGLE,
1866     EL_SIGN_ROUND,
1867     EL_SIGN_EXIT,
1868     EL_SIGN_YINYANG,
1869     EL_SIGN_OTHER,
1870     EL_STEELWALL_SLANTED,
1871     EL_EMC_STEELWALL_1,
1872     EL_EMC_STEELWALL_2,
1873     EL_EMC_STEELWALL_3,
1874     EL_EMC_STEELWALL_4,
1875     EL_CRYSTAL,
1876     EL_GATE_1,
1877     EL_GATE_2,
1878     EL_GATE_3,
1879     EL_GATE_4,
1880     EL_GATE_1_GRAY,
1881     EL_GATE_2_GRAY,
1882     EL_GATE_3_GRAY,
1883     EL_GATE_4_GRAY,
1884     EL_EM_GATE_1,
1885     EL_EM_GATE_2,
1886     EL_EM_GATE_3,
1887     EL_EM_GATE_4,
1888     EL_EM_GATE_1_GRAY,
1889     EL_EM_GATE_2_GRAY,
1890     EL_EM_GATE_3_GRAY,
1891     EL_EM_GATE_4_GRAY,
1892     EL_SWITCHGATE_OPEN,
1893     EL_SWITCHGATE_OPENING,
1894     EL_SWITCHGATE_CLOSED,
1895     EL_SWITCHGATE_CLOSING,
1896     EL_TIMEGATE_OPEN,
1897     EL_TIMEGATE_OPENING,
1898     EL_TIMEGATE_CLOSED,
1899     EL_TIMEGATE_CLOSING,
1900     EL_TUBE_ANY,
1901     EL_TUBE_VERTICAL,
1902     EL_TUBE_HORIZONTAL,
1903     EL_TUBE_VERTICAL_LEFT,
1904     EL_TUBE_VERTICAL_RIGHT,
1905     EL_TUBE_HORIZONTAL_UP,
1906     EL_TUBE_HORIZONTAL_DOWN,
1907     EL_TUBE_LEFT_UP,
1908     EL_TUBE_LEFT_DOWN,
1909     EL_TUBE_RIGHT_UP,
1910     EL_TUBE_RIGHT_DOWN,
1911     -1
1912   };
1913
1914   static int ep_belt[] =
1915   {
1916     EL_CONVEYOR_BELT_1_LEFT,
1917     EL_CONVEYOR_BELT_1_MIDDLE,
1918     EL_CONVEYOR_BELT_1_RIGHT,
1919     EL_CONVEYOR_BELT_2_LEFT,
1920     EL_CONVEYOR_BELT_2_MIDDLE,
1921     EL_CONVEYOR_BELT_2_RIGHT,
1922     EL_CONVEYOR_BELT_3_LEFT,
1923     EL_CONVEYOR_BELT_3_MIDDLE,
1924     EL_CONVEYOR_BELT_3_RIGHT,
1925     EL_CONVEYOR_BELT_4_LEFT,
1926     EL_CONVEYOR_BELT_4_MIDDLE,
1927     EL_CONVEYOR_BELT_4_RIGHT,
1928     -1
1929   };
1930
1931   static int ep_belt_active[] =
1932   {
1933     EL_CONVEYOR_BELT_1_LEFT_ACTIVE,
1934     EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE,
1935     EL_CONVEYOR_BELT_1_RIGHT_ACTIVE,
1936     EL_CONVEYOR_BELT_2_LEFT_ACTIVE,
1937     EL_CONVEYOR_BELT_2_MIDDLE_ACTIVE,
1938     EL_CONVEYOR_BELT_2_RIGHT_ACTIVE,
1939     EL_CONVEYOR_BELT_3_LEFT_ACTIVE,
1940     EL_CONVEYOR_BELT_3_MIDDLE_ACTIVE,
1941     EL_CONVEYOR_BELT_3_RIGHT_ACTIVE,
1942     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
1943     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
1944     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
1945     -1
1946   };
1947
1948   static int ep_belt_switch[] =
1949   {
1950     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1951     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1952     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1953     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1954     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1955     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1956     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1957     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1958     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1959     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1960     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1961     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1962     -1
1963   };
1964
1965   static int ep_tube[] =
1966   {
1967     EL_TUBE_LEFT_UP,
1968     EL_TUBE_LEFT_DOWN,
1969     EL_TUBE_RIGHT_UP,
1970     EL_TUBE_RIGHT_DOWN,
1971     EL_TUBE_HORIZONTAL,
1972     EL_TUBE_HORIZONTAL_UP,
1973     EL_TUBE_HORIZONTAL_DOWN,
1974     EL_TUBE_VERTICAL,
1975     EL_TUBE_VERTICAL_LEFT,
1976     EL_TUBE_VERTICAL_RIGHT,
1977     EL_TUBE_ANY,
1978     -1
1979   };
1980
1981   static int ep_keygate[] =
1982   {
1983     EL_GATE_1,
1984     EL_GATE_2,
1985     EL_GATE_3,
1986     EL_GATE_4,
1987     EL_GATE_1_GRAY,
1988     EL_GATE_2_GRAY,
1989     EL_GATE_3_GRAY,
1990     EL_GATE_4_GRAY,
1991     EL_EM_GATE_1,
1992     EL_EM_GATE_2,
1993     EL_EM_GATE_3,
1994     EL_EM_GATE_4,
1995     EL_EM_GATE_1_GRAY,
1996     EL_EM_GATE_2_GRAY,
1997     EL_EM_GATE_3_GRAY,
1998     EL_EM_GATE_4_GRAY,
1999     -1
2000   };
2001
2002   static int ep_amoeboid[] =
2003   {
2004     EL_AMOEBA_DEAD,
2005     EL_AMOEBA_WET,
2006     EL_AMOEBA_DRY,
2007     EL_AMOEBA_FULL,
2008     EL_BD_AMOEBA,
2009     -1
2010   };
2011
2012   static int ep_amoebalive[] =
2013   {
2014     EL_AMOEBA_WET,
2015     EL_AMOEBA_DRY,
2016     EL_AMOEBA_FULL,
2017     EL_BD_AMOEBA,
2018     -1
2019   };
2020
2021   static int ep_has_content[] =
2022   {
2023     EL_YAMYAM,
2024     EL_AMOEBA_WET,
2025     EL_AMOEBA_DRY,
2026     EL_AMOEBA_FULL,
2027     EL_BD_AMOEBA,
2028     -1
2029   };
2030
2031   static int ep_active_bomb[] =
2032   {
2033     EL_DYNAMITE_ACTIVE,
2034     EL_DYNABOMB_PLAYER_1_ACTIVE,
2035     EL_DYNABOMB_PLAYER_2_ACTIVE,
2036     EL_DYNABOMB_PLAYER_3_ACTIVE,
2037     EL_DYNABOMB_PLAYER_4_ACTIVE,
2038     EL_SP_DISK_RED_ACTIVE,
2039     -1
2040   };
2041
2042   static int ep_inactive[] =
2043   {
2044     EL_EMPTY,
2045     EL_SAND,
2046     EL_WALL,
2047     EL_BD_WALL,
2048     EL_WALL_CRUMBLED,
2049     EL_STEELWALL,
2050     EL_AMOEBA_DEAD,
2051     EL_QUICKSAND_EMPTY,
2052     EL_STONEBLOCK,
2053     EL_ROBOT_WHEEL,
2054     EL_KEY_1,
2055     EL_KEY_2,
2056     EL_KEY_3,
2057     EL_KEY_4,
2058     EL_EM_KEY_1,
2059     EL_EM_KEY_2,
2060     EL_EM_KEY_3,
2061     EL_EM_KEY_4,
2062     EL_GATE_1,
2063     EL_GATE_2,
2064     EL_GATE_3,
2065     EL_GATE_4,
2066     EL_GATE_1_GRAY,
2067     EL_GATE_2_GRAY,
2068     EL_GATE_3_GRAY,
2069     EL_GATE_4_GRAY,
2070     EL_EM_GATE_1,
2071     EL_EM_GATE_2,
2072     EL_EM_GATE_3,
2073     EL_EM_GATE_4,
2074     EL_EM_GATE_1_GRAY,
2075     EL_EM_GATE_2_GRAY,
2076     EL_EM_GATE_3_GRAY,
2077     EL_EM_GATE_4_GRAY,
2078     EL_DYNAMITE,
2079     EL_INVISIBLE_STEELWALL,
2080     EL_INVISIBLE_WALL,
2081     EL_INVISIBLE_SAND,
2082     EL_LAMP,
2083     EL_LAMP_ACTIVE,
2084     EL_WALL_EMERALD,
2085     EL_WALL_DIAMOND,
2086     EL_WALL_BD_DIAMOND,
2087     EL_WALL_EMERALD_YELLOW,
2088     EL_DYNABOMB_INCREASE_NUMBER,
2089     EL_DYNABOMB_INCREASE_SIZE,
2090     EL_DYNABOMB_INCREASE_POWER,
2091     EL_SOKOBAN_OBJECT,
2092     EL_SOKOBAN_FIELD_EMPTY,
2093     EL_SOKOBAN_FIELD_FULL,
2094     EL_WALL_EMERALD_RED,
2095     EL_WALL_EMERALD_PURPLE,
2096     EL_ACID_POOL_TOPLEFT,
2097     EL_ACID_POOL_TOPRIGHT,
2098     EL_ACID_POOL_BOTTOMLEFT,
2099     EL_ACID_POOL_BOTTOM,
2100     EL_ACID_POOL_BOTTOMRIGHT,
2101     EL_MAGIC_WALL,
2102     EL_MAGIC_WALL_DEAD,
2103     EL_BD_MAGIC_WALL,
2104     EL_BD_MAGIC_WALL_DEAD,
2105     EL_AMOEBA_TO_DIAMOND,
2106     EL_BLOCKED,
2107     EL_SP_EMPTY,
2108     EL_SP_BASE,
2109     EL_SP_PORT_RIGHT,
2110     EL_SP_PORT_DOWN,
2111     EL_SP_PORT_LEFT,
2112     EL_SP_PORT_UP,
2113     EL_SP_GRAVITY_PORT_RIGHT,
2114     EL_SP_GRAVITY_PORT_DOWN,
2115     EL_SP_GRAVITY_PORT_LEFT,
2116     EL_SP_GRAVITY_PORT_UP,
2117     EL_SP_PORT_HORIZONTAL,
2118     EL_SP_PORT_VERTICAL,
2119     EL_SP_PORT_ANY,
2120     EL_SP_DISK_RED,
2121     EL_SP_DISK_YELLOW,
2122     EL_SP_CHIP_SINGLE,
2123     EL_SP_CHIP_LEFT,
2124     EL_SP_CHIP_RIGHT,
2125     EL_SP_CHIP_TOP,
2126     EL_SP_CHIP_BOTTOM,
2127     EL_SP_HARDWARE_GRAY,
2128     EL_SP_HARDWARE_GREEN,
2129     EL_SP_HARDWARE_BLUE,
2130     EL_SP_HARDWARE_RED,
2131     EL_SP_HARDWARE_YELLOW,
2132     EL_SP_HARDWARE_BASE_1,
2133     EL_SP_HARDWARE_BASE_2,
2134     EL_SP_HARDWARE_BASE_3,
2135     EL_SP_HARDWARE_BASE_4,
2136     EL_SP_HARDWARE_BASE_5,
2137     EL_SP_HARDWARE_BASE_6,
2138     EL_CONVEYOR_BELT_1_SWITCH_LEFT,
2139     EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
2140     EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
2141     EL_CONVEYOR_BELT_2_SWITCH_LEFT,
2142     EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
2143     EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
2144     EL_CONVEYOR_BELT_3_SWITCH_LEFT,
2145     EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
2146     EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
2147     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
2148     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
2149     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
2150     EL_SIGN_EXCLAMATION,
2151     EL_SIGN_RADIOACTIVITY,
2152     EL_SIGN_STOP,
2153     EL_SIGN_WHEELCHAIR,
2154     EL_SIGN_PARKING,
2155     EL_SIGN_ONEWAY,
2156     EL_SIGN_HEART,
2157     EL_SIGN_TRIANGLE,
2158     EL_SIGN_ROUND,
2159     EL_SIGN_EXIT,
2160     EL_SIGN_YINYANG,
2161     EL_SIGN_OTHER,
2162     EL_STEELWALL_SLANTED,
2163     EL_EMC_STEELWALL_1,
2164     EL_EMC_STEELWALL_2,
2165     EL_EMC_STEELWALL_3,
2166     EL_EMC_STEELWALL_4,
2167     EL_EMC_WALL_1,
2168     EL_EMC_WALL_2,
2169     EL_EMC_WALL_3,
2170     EL_EMC_WALL_4,
2171     EL_EMC_WALL_5,
2172     EL_EMC_WALL_6,
2173     EL_EMC_WALL_7,
2174     EL_EMC_WALL_8,
2175     -1
2176   };
2177
2178   static struct
2179   {
2180     int *elements;
2181     int property;
2182   } element_properties[] =
2183   {
2184     { ep_diggable,              EP_DIGGABLE             },
2185     { ep_collectible,           EP_COLLECTIBLE          },
2186     { ep_indestructible,        EP_INDESTRUCTIBLE       },
2187     { ep_slippery,              EP_SLIPPERY             },
2188     { ep_can_fall,              EP_CAN_FALL             },
2189     { ep_can_smash,             EP_CAN_SMASH            },
2190     { ep_walkable_over,         EP_WALKABLE_OVER        },
2191     { ep_walkable_inside,       EP_WALKABLE_INSIDE      },
2192     { ep_walkable_under,        EP_WALKABLE_UNDER       },
2193     { ep_passable_over,         EP_PASSABLE_OVER        },
2194     { ep_passable_inside,       EP_PASSABLE_INSIDE      },
2195     { ep_passable_under,        EP_PASSABLE_UNDER       },
2196     { ep_pushable,              EP_PUSHABLE             },
2197
2198     { ep_player,                EP_PLAYER               },
2199     { ep_can_be_crumbled,       EP_CAN_BE_CRUMBLED      },
2200     { ep_can_move,              EP_CAN_MOVE             },
2201     { ep_can_change,            EP_CAN_CHANGE           },
2202     { ep_dont_touch,            EP_DONT_TOUCH           },
2203     { ep_enemy,                 EP_ENEMY                },
2204     { ep_dont_go_to,            EP_DONT_GO_TO           },
2205     { ep_explosive,             EP_EXPLOSIVE            },
2206     { ep_bd_element,            EP_BD_ELEMENT           },
2207     { ep_sp_element,            EP_SP_ELEMENT           },
2208     { ep_sb_element,            EP_SB_ELEMENT           },
2209     { ep_gem,                   EP_GEM                  },
2210     { ep_food_dark_yamyam,      EP_FOOD_DARK_YAMYAM     },
2211     { ep_food_penguin,          EP_FOOD_PENGUIN         },
2212     { ep_historic_wall,         EP_HISTORIC_WALL        },
2213     { ep_historic_solid,        EP_HISTORIC_SOLID       },
2214     { ep_belt,                  EP_BELT                 },
2215     { ep_belt_active,           EP_BELT_ACTIVE          },
2216     { ep_belt_switch,           EP_BELT_SWITCH          },
2217     { ep_tube,                  EP_TUBE                 },
2218     { ep_keygate,               EP_KEYGATE              },
2219     { ep_amoeboid,              EP_AMOEBOID             },
2220     { ep_amoebalive,            EP_AMOEBALIVE           },
2221     { ep_has_content,           EP_HAS_CONTENT          },
2222     { ep_active_bomb,           EP_ACTIVE_BOMB          },
2223     { ep_inactive,              EP_INACTIVE             },
2224
2225     { NULL,                     -1                      }
2226   };
2227
2228   int i, j;
2229
2230   /* always start with reliable default values (element has no properties) */
2231   for (i=0; i < MAX_NUM_ELEMENTS; i++)
2232     for (j=0; j < NUM_ELEMENT_PROPERTIES; j++)
2233       SET_PROPERTY(i, j, FALSE);
2234
2235   /* set all base element properties from above array definitions */
2236   for (i=0; element_properties[i].elements != NULL; i++)
2237     for (j=0; (element_properties[i].elements)[j] != -1; j++)
2238       SET_PROPERTY((element_properties[i].elements)[j],
2239                    element_properties[i].property, TRUE);
2240 }
2241
2242 void InitElementPropertiesEngine(int engine_version)
2243 {
2244 #if 0
2245   static int active_properties[] =
2246   {
2247     EP_AMOEBALIVE,
2248     EP_AMOEBOID,
2249     EP_PFORTE,
2250     EP_ENEMY,
2251     EP_MAUER,
2252     EP_CAN_FALL,
2253     EP_CAN_SMASH,
2254     EP_CAN_CHANGE,
2255     EP_CAN_MOVE,
2256     EP_DONT_TOUCH,
2257     EP_DONT_GO_TO,
2258     EP_GEM,
2259     EP_EXPLOSIVE,
2260     EP_PUSHABLE,
2261     EP_PLAYER,
2262     EP_HAS_CONTENT,
2263     EP_DIGGABLE,
2264     EP_PASSABLE_INSIDE,
2265     EP_OVER_PLAYER,
2266     EP_ACTIVE_BOMB,
2267
2268     EP_BELT,
2269     EP_BELT_ACTIVE,
2270     EP_BELT_SWITCH,
2271     EP_WALKABLE_UNDER,
2272     EP_EM_SLIPPERY_WALL,
2273     EP_CAN_BE_CRUMBLED,
2274   };
2275 #endif
2276
2277   static int no_wall_properties[] =
2278   {
2279     EP_AMOEBALIVE,
2280     EP_AMOEBOID,
2281     EP_CAN_BE_CRUMBLED,
2282     EP_ENEMY,
2283     EP_CAN_FALL,
2284     EP_CAN_SMASH,
2285     EP_CAN_MOVE,
2286     EP_DONT_GO_TO,
2287     EP_FOOD_DARK_YAMYAM,
2288     EP_GEM,
2289     EP_FOOD_PENGUIN,
2290     EP_PUSHABLE,
2291     EP_PLAYER,
2292     EP_ACCESSIBLE,
2293     EP_DIGGABLE,
2294     EP_COLLECTIBLE,
2295     EP_ACTIVE_BOMB,
2296     EP_BELT,
2297     EP_BELT_ACTIVE,
2298     EP_TUBE,
2299     -1
2300   };
2301
2302   int i, j;
2303
2304   /* set all special, combined or engine dependant element properties */
2305   for (i=0; i < MAX_NUM_ELEMENTS; i++)
2306   {
2307     /* ---------- INACTIVE ------------------------------------------------- */
2308     if (i >= EL_CHAR_START && i <= EL_CHAR_END)
2309       SET_PROPERTY(i, EP_INACTIVE, TRUE);
2310
2311     /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
2312     if (IS_WALKABLE_OVER(i) || IS_WALKABLE_INSIDE(i) || IS_WALKABLE_UNDER(i))
2313       SET_PROPERTY(i, EP_WALKABLE, TRUE);
2314
2315     if (IS_PASSABLE_OVER(i) || IS_PASSABLE_INSIDE(i) || IS_PASSABLE_UNDER(i))
2316       SET_PROPERTY(i, EP_PASSABLE, TRUE);
2317
2318     if (IS_WALKABLE_OVER(i) || IS_PASSABLE_OVER(i))
2319       SET_PROPERTY(i, EP_ACCESSIBLE_OVER, TRUE);
2320
2321     if (IS_WALKABLE_INSIDE(i) || IS_PASSABLE_INSIDE(i))
2322       SET_PROPERTY(i, EP_ACCESSIBLE_INSIDE, TRUE);
2323
2324     if (IS_WALKABLE_UNDER(i) || IS_PASSABLE_UNDER(i))
2325       SET_PROPERTY(i, EP_ACCESSIBLE_UNDER, TRUE);
2326
2327     if (IS_WALKABLE(i) || IS_PASSABLE(i))
2328       SET_PROPERTY(i, EP_ACCESSIBLE, TRUE);
2329
2330     /* ---------- WALL ----------------------------------------------------- */
2331     SET_PROPERTY(i, EP_WALL, TRUE);     /* default: element is wall */
2332
2333     for (j=0; no_wall_properties[j] != -1; j++)
2334       if (HAS_PROPERTY(i, no_wall_properties[j]) ||
2335           i >= EL_FIRST_RUNTIME_UNREAL)
2336         SET_PROPERTY(i, EP_WALL, FALSE);
2337
2338     if (IS_HISTORIC_WALL(i))
2339       SET_PROPERTY(i, EP_WALL, TRUE);
2340
2341     /* ---------- SOLID_FOR_PUSHING ---------------------------------------- */
2342     if (engine_version < VERSION_IDENT(2,2,0))
2343       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, IS_HISTORIC_SOLID(i));
2344     else
2345       SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, (!IS_WALKABLE(i) &&
2346                                              !IS_DIGGABLE(i) &&
2347                                              !IS_COLLECTIBLE(i)));
2348
2349     /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
2350     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION ||
2351         (IS_CUSTOM_ELEMENT(i) && IS_INDESTRUCTIBLE(i)))
2352       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
2353
2354     /* ---------- EXPLOSION_PROOF ------------------------------------------ */
2355     if (i == EL_FLAMES)
2356       SET_PROPERTY(i, EP_EXPLOSION_PROOF, TRUE);
2357     else if (engine_version < VERSION_IDENT(2,2,0))
2358       SET_PROPERTY(i, EP_EXPLOSION_PROOF, IS_INDESTRUCTIBLE(i));
2359     else
2360       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
2361                                            !IS_WALKABLE_OVER(i) &&
2362                                            !IS_WALKABLE_UNDER(i)));
2363   }
2364
2365 #if 0
2366   /* determine inactive elements (used for engine main loop optimization) */
2367   for (i=0; i < MAX_NUM_ELEMENTS; i++)
2368   {
2369     boolean active = FALSE;
2370
2371     for (j=0; i < NUM_ELEMENT_PROPERTIES; j++)
2372     {
2373       if (HAS_PROPERTY(i, j))
2374         active = TRUE;
2375     }
2376
2377 #if 0
2378     if (!active)
2379       SET_PROPERTY(i, EP_INACTIVE, TRUE);
2380 #endif
2381   }
2382 #endif
2383
2384   /* dynamically adjust element properties according to game engine version */
2385   {
2386     static int ep_em_slippery_wall[] =
2387     {
2388       EL_STEELWALL,
2389       EL_WALL,
2390       EL_EXPANDABLE_WALL,
2391       EL_EXPANDABLE_WALL_HORIZONTAL,
2392       EL_EXPANDABLE_WALL_VERTICAL,
2393       EL_EXPANDABLE_WALL_ANY,
2394       -1
2395     };
2396
2397     /* special EM style gems behaviour */
2398     for (i=0; ep_em_slippery_wall[i] != -1; i++)
2399       SET_PROPERTY(ep_em_slippery_wall[i], EP_EM_SLIPPERY_WALL,
2400                    level.em_slippery_gems);
2401
2402     /* "EL_EXPANDABLE_WALL_GROWING" wasn't slippery for EM gems in 2.0.1 */
2403     SET_PROPERTY(EL_EXPANDABLE_WALL_GROWING, EP_EM_SLIPPERY_WALL,
2404                  (level.em_slippery_gems &&
2405                   engine_version > VERSION_IDENT(2,0,1)));
2406   }
2407 }
2408
2409 static void InitGlobal()
2410 {
2411   global.autoplay_leveldir = NULL;
2412
2413   global.frames_per_second = 0;
2414   global.fps_slowdown = FALSE;
2415   global.fps_slowdown_factor = 1;
2416 }
2417
2418 void Execute_Command(char *command)
2419 {
2420   if (strcmp(command, "print graphicsinfo.conf") == 0)
2421   {
2422     int i;
2423
2424     printf("# You can configure additional/alternative image files here.\n");
2425     printf("# (The images below are default and therefore commented out.)\n");
2426     printf("\n");
2427     printf("%s\n", getFormattedSetupEntry("name", "Classic Graphics"));
2428     printf("\n");
2429     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
2430     printf("\n");
2431
2432     for (i=0; image_config[i].token != NULL; i++)
2433       printf("# %s\n",
2434              getFormattedSetupEntry(image_config[i].token,
2435                                     image_config[i].value));
2436
2437     exit(0);
2438   }
2439   else if (strcmp(command, "print soundsinfo.conf") == 0)
2440   {
2441     int i;
2442
2443     printf("# You can configure additional/alternative sound files here.\n");
2444     printf("# (The sounds below are default and therefore commented out.)\n");
2445     printf("\n");
2446     printf("%s\n", getFormattedSetupEntry("name", "Classic Sounds"));
2447     printf("\n");
2448     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
2449     printf("\n");
2450
2451     for (i=0; sound_config[i].token != NULL; i++)
2452       printf("# %s\n",
2453              getFormattedSetupEntry(sound_config[i].token,
2454                                     sound_config[i].value));
2455
2456     exit(0);
2457   }
2458   else if (strcmp(command, "print musicinfo.conf") == 0)
2459   {
2460     printf("# (Currently only \"name\" and \"sort_priority\" recognized.)\n");
2461     printf("\n");
2462     printf("%s\n", getFormattedSetupEntry("name", "Classic Music"));
2463     printf("\n");
2464     printf("%s\n", getFormattedSetupEntry("sort_priority", "100"));
2465
2466     exit(0);
2467   }
2468   else if (strncmp(command, "dump level ", 11) == 0)
2469   {
2470     char *filename = &command[11];
2471
2472     if (access(filename, F_OK) != 0)
2473       Error(ERR_EXIT, "cannot open file '%s'", filename);
2474
2475     LoadLevelFromFilename(filename);
2476     DumpLevel(&level);
2477
2478     exit(0);
2479   }
2480   else if (strncmp(command, "dump tape ", 10) == 0)
2481   {
2482     char *filename = &command[10];
2483
2484     if (access(filename, F_OK) != 0)
2485       Error(ERR_EXIT, "cannot open file '%s'", filename);
2486
2487     LoadTapeFromFilename(filename);
2488     DumpTape(&tape);
2489
2490     exit(0);
2491   }
2492   else if (strncmp(command, "autoplay ", 9) == 0)
2493   {
2494     char *str_copy = getStringCopy(&command[9]);
2495     char *str_ptr = strchr(str_copy, ' ');
2496
2497     global.autoplay_leveldir = str_copy;
2498     global.autoplay_level_nr = -1;
2499
2500     if (str_ptr != NULL)
2501     {
2502       *str_ptr++ = '\0';                        /* terminate leveldir string */
2503       global.autoplay_level_nr = atoi(str_ptr); /* get level_nr value */
2504     }
2505   }
2506   else
2507   {
2508     Error(ERR_EXIT_HELP, "unrecognized command '%s'", command);
2509   }
2510 }
2511
2512 static void InitSetup()
2513 {
2514   LoadSetup();                                  /* global setup info */
2515
2516   /* set some options from setup file */
2517
2518   if (setup.options.verbose)
2519     options.verbose = TRUE;
2520 }
2521
2522 static void InitPlayerInfo()
2523 {
2524   int i;
2525
2526   /* choose default local player */
2527   local_player = &stored_player[0];
2528
2529   for (i=0; i<MAX_PLAYERS; i++)
2530     stored_player[i].connected = FALSE;
2531
2532   local_player->connected = TRUE;
2533 }
2534
2535 static void InitArtworkInfo()
2536 {
2537   LoadArtworkInfo();
2538 }
2539
2540 static char *get_element_class_token(int element)
2541 {
2542   char *element_class_name = element_info[element].class_name;
2543   char *element_class_token = checked_malloc(strlen(element_class_name) + 3);
2544
2545   sprintf(element_class_token, "[%s]", element_class_name);
2546
2547   return element_class_token;
2548 }
2549
2550 static void InitArtworkConfig()
2551 {
2552   static char *image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS + 1];
2553   static char *sound_id_prefix[MAX_NUM_ELEMENTS + MAX_NUM_ELEMENTS + 1];
2554   static char *action_id_suffix[NUM_ACTIONS + 1];
2555   static char *direction_id_suffix[NUM_DIRECTIONS + 1];
2556   static char *special_id_suffix[NUM_SPECIAL_GFX_ARGS + 1];
2557   static char *dummy[1] = { NULL };
2558   static char *ignore_generic_tokens[] =
2559   {
2560     "name",
2561     "sort_priority",
2562     NULL
2563   };
2564   static char **ignore_image_tokens, **ignore_sound_tokens;
2565   int num_ignore_generic_tokens;
2566   int num_ignore_image_tokens, num_ignore_sound_tokens;
2567   int i;
2568
2569   /* dynamically determine list of generic tokens to be ignored */
2570   num_ignore_generic_tokens = 0;
2571   for (i=0; ignore_generic_tokens[i] != NULL; i++)
2572     num_ignore_generic_tokens++;
2573
2574   /* dynamically determine list of image tokens to be ignored */
2575   num_ignore_image_tokens = num_ignore_generic_tokens;
2576   for (i=0; image_config_vars[i].token != NULL; i++)
2577     num_ignore_image_tokens++;
2578   ignore_image_tokens =
2579     checked_malloc((num_ignore_image_tokens + 1) * sizeof(char *));
2580   for (i=0; i < num_ignore_generic_tokens; i++)
2581     ignore_image_tokens[i] = ignore_generic_tokens[i];
2582   for (i=0; i < num_ignore_image_tokens - num_ignore_generic_tokens; i++)
2583     ignore_image_tokens[num_ignore_generic_tokens + i] =
2584       image_config_vars[i].token;
2585   ignore_image_tokens[num_ignore_image_tokens] = NULL;
2586
2587   /* dynamically determine list of sound tokens to be ignored */
2588   num_ignore_sound_tokens = num_ignore_generic_tokens;
2589   ignore_sound_tokens =
2590     checked_malloc((num_ignore_sound_tokens + 1) * sizeof(char *));
2591   for (i=0; i < num_ignore_generic_tokens; i++)
2592     ignore_sound_tokens[i] = ignore_generic_tokens[i];
2593   ignore_sound_tokens[num_ignore_sound_tokens] = NULL;
2594
2595   for (i=0; i<MAX_NUM_ELEMENTS; i++)
2596     image_id_prefix[i] = element_info[i].token_name;
2597   for (i=0; i<NUM_FONTS; i++)
2598     image_id_prefix[MAX_NUM_ELEMENTS + i] = font_info[i].token_name;
2599   image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS] = NULL;
2600
2601   for (i=0; i<MAX_NUM_ELEMENTS; i++)
2602     sound_id_prefix[i] = element_info[i].token_name;
2603   for (i=0; i<MAX_NUM_ELEMENTS; i++)
2604     sound_id_prefix[MAX_NUM_ELEMENTS + i] = get_element_class_token(i);
2605   sound_id_prefix[MAX_NUM_ELEMENTS + MAX_NUM_ELEMENTS] = NULL;
2606
2607   for (i=0; i<NUM_ACTIONS; i++)
2608     action_id_suffix[i] = element_action_info[i].suffix;
2609   action_id_suffix[NUM_ACTIONS] = NULL;
2610
2611   for (i=0; i<NUM_DIRECTIONS; i++)
2612     direction_id_suffix[i] = element_direction_info[i].suffix;
2613   direction_id_suffix[NUM_DIRECTIONS] = NULL;
2614
2615   for (i=0; i<NUM_SPECIAL_GFX_ARGS; i++)
2616     special_id_suffix[i] = special_suffix_info[i].suffix;
2617   special_id_suffix[NUM_SPECIAL_GFX_ARGS] = NULL;
2618
2619   InitImageList(image_config, NUM_IMAGE_FILES, image_config_suffix,
2620                 image_id_prefix, action_id_suffix, direction_id_suffix,
2621                 special_id_suffix, ignore_image_tokens);
2622   InitSoundList(sound_config, NUM_SOUND_FILES, sound_config_suffix,
2623                 sound_id_prefix, action_id_suffix, dummy,
2624                 special_id_suffix, ignore_sound_tokens);
2625 }
2626
2627 static void InitMixer()
2628 {
2629   OpenAudio();
2630   StartMixer();
2631 }
2632
2633 void InitGfx()
2634 {
2635   char *filename_font_initial = NULL;
2636   Bitmap *bitmap_font_initial = NULL;
2637   int i, j;
2638
2639   /* determine settings for initial font (for displaying startup messages) */
2640   for (i=0; image_config[i].token != NULL; i++)
2641   {
2642     for (j=0; j < NUM_INITIAL_FONTS; j++)
2643     {
2644       char font_token[128];
2645       int len_font_token;
2646
2647       sprintf(font_token, "%s_%d", CONFIG_TOKEN_FONT_INITIAL, j + 1);
2648       len_font_token = strlen(font_token);
2649
2650       if (strcmp(image_config[i].token, font_token) == 0)
2651         filename_font_initial = image_config[i].value;
2652       else if (strlen(image_config[i].token) > len_font_token &&
2653                strncmp(image_config[i].token, font_token, len_font_token) == 0)
2654       {
2655         if (strcmp(&image_config[i].token[len_font_token], ".x") == 0)
2656           font_initial[j].src_x = atoi(image_config[i].value);
2657         else if (strcmp(&image_config[i].token[len_font_token], ".y") == 0)
2658           font_initial[j].src_y = atoi(image_config[i].value);
2659         else if (strcmp(&image_config[i].token[len_font_token], ".width") == 0)
2660           font_initial[j].width = atoi(image_config[i].value);
2661         else if (strcmp(&image_config[i].token[len_font_token],".height") == 0)
2662           font_initial[j].height = atoi(image_config[i].value);
2663       }
2664     }
2665   }
2666
2667   for (j=0; j < NUM_INITIAL_FONTS; j++)
2668   {
2669     font_initial[j].num_chars = DEFAULT_NUM_CHARS_PER_FONT;
2670     font_initial[j].num_chars_per_line = DEFAULT_NUM_CHARS_PER_LINE;
2671   }
2672
2673   if (filename_font_initial == NULL)    /* should not happen */
2674     Error(ERR_EXIT, "cannot get filename for '%s'", CONFIG_TOKEN_FONT_INITIAL);
2675
2676   /* create additional image buffers for double-buffering */
2677   bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
2678   bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
2679
2680   /* initialize screen properties */
2681   InitGfxFieldInfo(SX, SY, SXSIZE, SYSIZE,
2682                    REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE,
2683                    bitmap_db_field);
2684   InitGfxDoor1Info(DX, DY, DXSIZE, DYSIZE);
2685   InitGfxDoor2Info(VX, VY, VXSIZE, VYSIZE);
2686   InitGfxScrollbufferInfo(FXSIZE, FYSIZE);
2687
2688   bitmap_font_initial = LoadCustomImage(filename_font_initial);
2689
2690   for (j=0; j < NUM_INITIAL_FONTS; j++)
2691     font_initial[j].bitmap = bitmap_font_initial;
2692
2693   InitFontGraphicInfo();
2694
2695   DrawInitText(WINDOW_TITLE_STRING, 20, FC_YELLOW);
2696   DrawInitText(WINDOW_SUBTITLE_STRING, 50, FC_RED);
2697
2698   DrawInitText("Loading graphics:", 120, FC_GREEN);
2699
2700   InitTileClipmasks();
2701 }
2702
2703 void InitGfxBackground()
2704 {
2705   int x, y;
2706
2707   drawto = backbuffer;
2708   fieldbuffer = bitmap_db_field;
2709   SetDrawtoField(DRAW_BACKBUFFER);
2710
2711   BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, backbuffer,
2712              0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
2713   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
2714   ClearRectangle(bitmap_db_door, 0, 0, 3 * DXSIZE, DYSIZE + VYSIZE);
2715
2716   for (x=0; x<MAX_BUF_XSIZE; x++)
2717     for (y=0; y<MAX_BUF_YSIZE; y++)
2718       redraw[x][y] = 0;
2719   redraw_tiles = 0;
2720   redraw_mask = REDRAW_ALL;
2721 }
2722
2723 static void InitLevelInfo()
2724 {
2725   LoadLevelInfo();                              /* global level info */
2726   LoadLevelSetup_LastSeries();                  /* last played series info */
2727   LoadLevelSetup_SeriesInfo();                  /* last played level info */
2728 }
2729
2730 void InitLevelArtworkInfo()
2731 {
2732   LoadLevelArtworkInfo();
2733 }
2734
2735 static void InitImages()
2736 {
2737   ReloadCustomImages();
2738
2739   LoadCustomElementDescriptions();
2740   LoadSpecialMenuDesignSettings();
2741
2742   ReinitializeGraphics();
2743 }
2744
2745 static void InitSound()
2746 {
2747   InitReloadCustomSounds(artwork.snd_current->identifier);
2748   ReinitializeSounds();
2749 }
2750
2751 static void InitMusic()
2752 {
2753   InitReloadCustomMusic(artwork.mus_current->identifier);
2754   ReinitializeMusic();
2755 }
2756
2757 void InitNetworkServer()
2758 {
2759 #if defined(PLATFORM_UNIX)
2760   int nr_wanted;
2761 #endif
2762
2763   if (!options.network)
2764     return;
2765
2766 #if defined(PLATFORM_UNIX)
2767   nr_wanted = Request("Choose player", REQ_PLAYER | REQ_STAY_CLOSED);
2768
2769   if (!ConnectToServer(options.server_host, options.server_port))
2770     Error(ERR_EXIT, "cannot connect to network game server");
2771
2772   SendToServer_PlayerName(setup.player_name);
2773   SendToServer_ProtocolVersion();
2774
2775   if (nr_wanted)
2776     SendToServer_NrWanted(nr_wanted);
2777 #endif
2778 }
2779
2780 void ReloadCustomArtwork()
2781 {
2782   static char *leveldir_current_identifier = NULL;
2783   static boolean last_override_level_graphics = FALSE;
2784   static boolean last_override_level_sounds = FALSE;
2785   static boolean last_override_level_music = FALSE;
2786   /* identifier for new artwork; default: artwork configured in setup */
2787   char *gfx_new_identifier = artwork.gfx_current->identifier;
2788   char *snd_new_identifier = artwork.snd_current->identifier;
2789   char *mus_new_identifier = artwork.mus_current->identifier;
2790   boolean redraw_screen = FALSE;
2791
2792   if (leveldir_current_identifier == NULL)
2793     leveldir_current_identifier = leveldir_current->identifier;
2794
2795 #if 0
2796   printf("CURRENT GFX: '%s' ['%s']\n", artwork.gfx_current->identifier,
2797          leveldir_current->graphics_set);
2798   printf("CURRENT LEV: '%s' / '%s'\n", leveldir_current_identifier,
2799          leveldir_current->identifier);
2800 #endif
2801
2802 #if 0
2803   printf("graphics --> '%s' ('%s')\n",
2804          artwork.gfx_current_identifier, artwork.gfx_current->filename);
2805   printf("sounds   --> '%s' ('%s')\n",
2806          artwork.snd_current_identifier, artwork.snd_current->filename);
2807   printf("music    --> '%s' ('%s')\n",
2808          artwork.mus_current_identifier, artwork.mus_current->filename);
2809 #endif
2810
2811   /* leveldir_current may be invalid (level group, parent link) */
2812   if (!validLevelSeries(leveldir_current))
2813     return;
2814
2815   /* when a new level series was selected, check if there was a change
2816      in custom artwork stored in level series directory */
2817   if (leveldir_current_identifier != leveldir_current->identifier)
2818   {
2819     char *identifier_old = leveldir_current_identifier;
2820     char *identifier_new = leveldir_current->identifier;
2821
2822     if (getTreeInfoFromIdentifier(artwork.gfx_first, identifier_old) !=
2823         getTreeInfoFromIdentifier(artwork.gfx_first, identifier_new))
2824       gfx_new_identifier = identifier_new;
2825     if (getTreeInfoFromIdentifier(artwork.snd_first, identifier_old) !=
2826         getTreeInfoFromIdentifier(artwork.snd_first, identifier_new))
2827       snd_new_identifier = identifier_new;
2828     if (getTreeInfoFromIdentifier(artwork.mus_first, identifier_new) !=
2829         getTreeInfoFromIdentifier(artwork.mus_first, identifier_new))
2830       mus_new_identifier = identifier_new;
2831
2832     leveldir_current_identifier = leveldir_current->identifier;
2833   }
2834
2835   /* custom level artwork configured in level series configuration file
2836      always overrides custom level artwork stored in level series directory
2837      and (level independant) custom artwork configured in setup menue */
2838   if (leveldir_current->graphics_set != NULL)
2839     gfx_new_identifier = leveldir_current->graphics_set;
2840   if (leveldir_current->sounds_set != NULL)
2841     snd_new_identifier = leveldir_current->sounds_set;
2842   if (leveldir_current->music_set != NULL)
2843     mus_new_identifier = leveldir_current->music_set;
2844
2845   if (strcmp(artwork.gfx_current_identifier, gfx_new_identifier) != 0 ||
2846       last_override_level_graphics != setup.override_level_graphics)
2847   {
2848 #if 0
2849     printf("RELOADING GRAPHICS '%s' -> '%s' ('%s')\n",
2850            artwork.gfx_current_identifier,
2851            artwork.gfx_current->identifier,
2852            gfx_new_identifier);
2853 #endif
2854
2855     setLevelArtworkDir(artwork.gfx_first);
2856
2857     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
2858
2859     InitImages();
2860
2861     FreeTileClipmasks();
2862     InitTileClipmasks();
2863
2864     artwork.gfx_current_identifier = artwork.gfx_current->identifier;
2865     last_override_level_graphics = setup.override_level_graphics;
2866
2867     redraw_screen = TRUE;
2868   }
2869
2870   if (strcmp(artwork.snd_current_identifier, snd_new_identifier) != 0 ||
2871       last_override_level_sounds != setup.override_level_sounds)
2872   {
2873 #if 0
2874     printf("RELOADING SOUNDS '%s' -> '%s' ('%s')\n",
2875            artwork.snd_current_identifier,
2876            artwork.snd_current->identifier,
2877            snd_new_identifier);
2878 #endif
2879
2880     /* set artwork path to send it to the sound server process */
2881     setLevelArtworkDir(artwork.snd_first);
2882
2883     InitReloadCustomSounds(snd_new_identifier);
2884     ReinitializeSounds();
2885
2886     artwork.snd_current_identifier = artwork.snd_current->identifier;
2887     last_override_level_sounds = setup.override_level_sounds;
2888
2889     redraw_screen = TRUE;
2890   }
2891
2892   if (strcmp(artwork.mus_current_identifier, mus_new_identifier) != 0 ||
2893       last_override_level_music != setup.override_level_music)
2894   {
2895     /* set artwork path to send it to the sound server process */
2896     setLevelArtworkDir(artwork.mus_first);
2897
2898     InitReloadCustomMusic(mus_new_identifier);
2899     ReinitializeMusic();
2900
2901     artwork.mus_current_identifier = artwork.mus_current->identifier;
2902     last_override_level_music = setup.override_level_music;
2903
2904     redraw_screen = TRUE;
2905   }
2906
2907   if (redraw_screen)
2908   {
2909     InitGfxBackground();
2910
2911     /* force redraw of (open or closed) door graphics */
2912     SetDoorState(DOOR_OPEN_ALL);
2913     CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
2914   }
2915 }
2916
2917
2918 /* ========================================================================= */
2919 /* OpenAll()                                                                 */
2920 /* ========================================================================= */
2921
2922 void OpenAll()
2923 {
2924   InitGlobal();         /* initialize some global variables */
2925
2926   if (options.execute_command)
2927     Execute_Command(options.execute_command);
2928
2929   if (options.serveronly)
2930   {
2931 #if defined(PLATFORM_UNIX)
2932     NetworkServer(options.server_port, options.serveronly);
2933 #else
2934     Error(ERR_WARN, "networking only supported in Unix version");
2935 #endif
2936     exit(0);    /* never reached */
2937   }
2938
2939   InitSetup();
2940
2941   InitPlayerInfo();
2942   InitArtworkInfo();            /* needed before loading gfx, sound & music */
2943   InitArtworkConfig();          /* needed before forking sound child process */
2944   InitMixer();
2945
2946   InitCounter();
2947
2948   InitRND(NEW_RANDOMIZE);
2949   InitSimpleRND(NEW_RANDOMIZE);
2950
2951   InitJoysticks();
2952
2953   InitVideoDisplay();
2954   InitVideoBuffer(&backbuffer, &window, WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH,
2955                   setup.fullscreen);
2956
2957   InitEventFilter(FilterMouseMotionEvents);
2958
2959   InitElementPropertiesStatic();
2960
2961   InitGfx();
2962
2963   InitLevelInfo();
2964   InitLevelArtworkInfo();
2965
2966   InitImages();                 /* needs to know current level directory */
2967   InitSound();                  /* needs to know current level directory */
2968   InitMusic();                  /* needs to know current level directory */
2969
2970   InitGfxBackground();
2971
2972   if (global.autoplay_leveldir)
2973   {
2974     AutoPlayTape();
2975     return;
2976   }
2977
2978   game_status = GAME_MODE_MAIN;
2979
2980   DrawMainMenu();
2981
2982   InitNetworkServer();
2983 }
2984
2985 void CloseAllAndExit(int exit_value)
2986 {
2987   StopSounds();
2988   FreeAllSounds();
2989   FreeAllMusic();
2990   CloseAudio();         /* called after freeing sounds (needed for SDL) */
2991
2992   FreeAllImages();
2993   FreeTileClipmasks();
2994
2995   CloseVideoDisplay();
2996   ClosePlatformDependantStuff();
2997
2998   exit(exit_value);
2999 }