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[divverent/nexuiz.git] / data / qcsrc / common / mapinfo.qc
1 #ifdef HSOI
2 // HUGE SET - stored in a string
3 string HugeSetOfIntegers_empty()
4 {
5         return "";
6 }
7 float HugeSetOfIntegers_get(string pArr, float i)
8 {
9         return stof(substring(pArr, i * 4, 4));
10 }
11 float HugeSetOfIntegers_length(string pArr)
12 {
13         return strlen(pArr) / 4;
14 }
15 string HugeSetOfIntegers_concat(string a1, string a2)
16 {
17         return strcat(a1, a2);
18 }
19 string HugeSetOfIntegers_insert(string a1, float n, string a2)
20         // special concat function to build up large lists in less time by binary concatenation
21 {
22         string s;
23         s = strcat("    ", ftos(n));
24         return strcat(a1, substring(s, strlen(s) - 4, 4), a2);
25 }
26 #endif
27
28 // generic string stuff
29 float startsWith(string haystack, string needle)
30 {
31         return substring(haystack, 0, strlen(needle)) == needle;
32 }
33 float startsWithNocase(string haystack, string needle)
34 {
35         return strcasecmp(substring(haystack, 0, strlen(needle)), needle) == 0;
36 }
37 string extractRestOfLine(string haystack, string needle)
38 {
39         if(startsWith(haystack, needle))
40                 return substring(haystack, strlen(needle), strlen(haystack) - strlen(needle));
41         return string_null;
42 }
43 string car(string s)
44 {
45         float o;
46         o = strstrofs(s, " ", 0);
47         if(o < 0)
48                 return s;
49         return substring(s, 0, o);
50 }
51 string cdr(string s)
52 {
53         float o;
54         o = strstrofs(s, " ", 0);
55         if(o < 0)
56                 return string_null;
57         return substring(s, o + 1, strlen(s) - (o + 1));
58 }
59
60 float _MapInfo_Cache_Active;
61 float _MapInfo_Cache_DB_NameToIndex;
62 float _MapInfo_Cache_Buf_IndexToMapData;
63
64 void MapInfo_Cache_Destroy()
65 {
66         if(!_MapInfo_Cache_Active)
67                 return;
68
69         db_close(_MapInfo_Cache_DB_NameToIndex);
70         buf_del(_MapInfo_Cache_Buf_IndexToMapData);
71         _MapInfo_Cache_Active = 0;
72 }
73
74 void MapInfo_Cache_Create()
75 {
76         MapInfo_Cache_Destroy();
77         _MapInfo_Cache_DB_NameToIndex = db_create();
78         _MapInfo_Cache_Buf_IndexToMapData = buf_create();
79         _MapInfo_Cache_Active = 1;
80 }
81
82 void MapInfo_Cache_Invalidate()
83 {
84         if(!_MapInfo_Cache_Active)
85                 return;
86
87         MapInfo_Cache_Create();
88 }
89
90 void MapInfo_Cache_Store()
91 {
92         float i;
93         string s;
94         if(!_MapInfo_Cache_Active)
95                 return;
96
97         s = db_get(_MapInfo_Cache_DB_NameToIndex, MapInfo_Map_bspname);
98         if(!s) // empty string is NOT valid here!
99         {
100                 i = buf_getsize(_MapInfo_Cache_Buf_IndexToMapData);
101                 db_put(_MapInfo_Cache_DB_NameToIndex, MapInfo_Map_bspname, ftos(i));
102         }
103         else
104                 i = stof(s);
105
106         // now store all the stuff
107         bufstr_set(_MapInfo_Cache_Buf_IndexToMapData,   i, MapInfo_Map_bspname);
108         bufstr_set(_MapInfo_Cache_Buf_IndexToMapData, ++i, MapInfo_Map_title);
109         bufstr_set(_MapInfo_Cache_Buf_IndexToMapData, ++i, MapInfo_Map_description);
110         bufstr_set(_MapInfo_Cache_Buf_IndexToMapData, ++i, MapInfo_Map_author);
111         bufstr_set(_MapInfo_Cache_Buf_IndexToMapData, ++i, ftos(MapInfo_Map_supportedGametypes));
112         bufstr_set(_MapInfo_Cache_Buf_IndexToMapData, ++i, ftos(MapInfo_Map_supportedFeatures));
113         bufstr_set(_MapInfo_Cache_Buf_IndexToMapData, ++i, ftos(MapInfo_Map_flags));
114 }
115
116 float MapInfo_Cache_Retrieve(string map)
117 {
118         float i;
119         string s;
120         if(!_MapInfo_Cache_Active)
121                 return 0;
122
123         s = db_get(_MapInfo_Cache_DB_NameToIndex, map);
124         if(!s)
125                 return 0;
126         i = stof(s);
127
128         // now retrieve all the stuff
129         MapInfo_Map_bspname = bufstr_get(_MapInfo_Cache_Buf_IndexToMapData, i);
130         MapInfo_Map_title = bufstr_get(_MapInfo_Cache_Buf_IndexToMapData, ++i);
131         MapInfo_Map_description = bufstr_get(_MapInfo_Cache_Buf_IndexToMapData, ++i);
132         MapInfo_Map_author = bufstr_get(_MapInfo_Cache_Buf_IndexToMapData, ++i);
133         MapInfo_Map_supportedGametypes = stof(bufstr_get(_MapInfo_Cache_Buf_IndexToMapData, ++i));
134         MapInfo_Map_supportedFeatures = stof(bufstr_get(_MapInfo_Cache_Buf_IndexToMapData, ++i));
135         MapInfo_Map_flags = stof(bufstr_get(_MapInfo_Cache_Buf_IndexToMapData, ++i));
136         return 1;
137 }
138
139 // GLOB HANDLING (for all BSP files)
140 float _MapInfo_globopen;
141 float _MapInfo_globcount; 
142 float _MapInfo_globhandle;
143 string _MapInfo_GlobItem(float i)
144 {
145         string s;
146         s = search_getfilename(_MapInfo_globhandle, i);
147         return substring(s, 5, strlen(s) - 9); // without maps/ and .bsp
148 }
149
150 void MapInfo_Enumerate()
151 {
152         if(_MapInfo_globopen)
153                 search_end(_MapInfo_globhandle);
154         MapInfo_Cache_Invalidate();
155         _MapInfo_globhandle = search_begin("maps/*.bsp", TRUE, TRUE);
156         _MapInfo_globcount = search_getsize(_MapInfo_globhandle);
157         _MapInfo_globopen = 1;
158 }
159
160 // filter the info by game type mask (updates MapInfo_count)
161 //
162 #ifdef HSOI
163 string _MapInfo_filtered;
164 float MapInfo_FilterList_Lookup(float i)
165 {
166         return MapInfo_FilterList_Lookup(i);
167 }
168
169 string MapInfo_FilterGametype_Recursive(float pGametype, float pFeatures, float pFlagsRequired, float pFlagsForbidden, float pBegin, float pEnd, float pAbortOnGenerate)
170 {
171         float m, valid;
172         string l, r;
173
174         if(pBegin == pEnd)
175                 return HugeSetOfIntegers_empty();
176
177         m = floor((pBegin + pEnd) / 2);
178
179         l = MapInfo_FilterGametype_Recursive(pGametype, pFeatures, pBegin, m, pAbortOnGenerate);
180         if not(l)
181                 return string_null; // BAIL OUT
182         if(MapInfo_Get_ByName(_MapInfo_GlobItem(m), 1, 0) == 2) // if we generated one... BAIL OUT and let the caller continue in the next frame.
183                 if(pAbortOnGenerate)
184                 {
185                         MapInfo_progress = m / _MapInfo_globcount;
186                         return string_null; // BAIL OUT
187                 }
188         valid = (((MapInfo_Map_supportedGametypes & pGametype) != 0);
189         valid = valid && ((MapInfo_Map_supportedFeatures & pFeatures) == pFeatures));
190         valid = valid && (MapInfo_Map_flags & pFlagsForbidden == 0);
191         valid = valid && (MapInfo_Map_flags & pFlagsRequired == pFlagsRequired);
192         r = MapInfo_FilterGametype_Recursive(pGametype, pFeatures, pFlagsRequired, pFlagsForbidden, m + 1, pEnd, pAbortOnGenerate);
193         if not(r)
194                 return string_null; // BAIL OUT
195
196         if(valid)
197                 return HugeSetOfIntegers_insert(l, m, r);
198         else
199                 return HugeSetOfIntegers_concat(l, r);
200 }
201
202 float MapInfo_FilterGametype(float pGametype, float pFeatures, pFlagsRequired, pFlagsForbidden, float pAbortOnGenerate)
203 {
204         if(_MapInfo_filtered)
205                 strunzone(_MapInfo_filtered);
206         _MapInfo_filtered = MapInfo_FilterGametype_Recursive(pGametype, pFeatures, pFlagsRequired, pFlagsForbidden, 0, _MapInfo_globcount, pAbortOnGenerate);
207         if not(_MapInfo_filtered)
208         {
209                 dprint("Autogenerated a .mapinfo, doing the rest later.\n");
210                 return 0;
211         }
212         _MapInfo_filtered = strzone(_MapInfo_filtered);
213         MapInfo_count = HugeSetOfIntegers_length(_MapInfo_filtered);
214         MapInfo_ClearTemps();
215         return 1;
216 }
217
218 void MapInfo_Filter_Free()
219 {
220         if(_MapInfo_filtered)
221         {
222                 strunzone(_MapInfo_filtered);
223                 _MapInfo_filtered = string_null;
224         }
225 }
226 #else
227 float _MapInfo_filtered;
228 float _MapInfo_filtered_allocated;
229 float MapInfo_FilterList_Lookup(float i)
230 {
231         return stof(bufstr_get(_MapInfo_filtered, i));
232 }
233
234 float MapInfo_FilterGametype(float pGametype, float pFeatures, float pFlagsRequired, float pFlagsForbidden, float pAbortOnGenerate)
235 {
236         float i, j;
237         if not(_MapInfo_filtered_allocated)
238         {
239                 _MapInfo_filtered_allocated = 1;
240                 _MapInfo_filtered = buf_create();
241         }
242         MapInfo_count = 0;
243         for(i = 0, j = -1; i < _MapInfo_globcount; ++i)
244         {
245                 if(MapInfo_Get_ByName(_MapInfo_GlobItem(i), 1, 0) == 2) // if we generated one... BAIL OUT and let the caller continue in the next frame.
246                         if(pAbortOnGenerate)
247                         {
248                                 dprint("Autogenerated a .mapinfo, doing the rest later.\n");
249                                 MapInfo_progress = i / _MapInfo_globcount;
250                                 return 0;
251                         }
252                 if((MapInfo_Map_supportedGametypes & pGametype) != 0)
253                 if((MapInfo_Map_supportedFeatures & pFeatures) == pFeatures)
254                 if((MapInfo_Map_flags & pFlagsForbidden) == 0)
255                 if((MapInfo_Map_flags & pFlagsRequired) == pFlagsRequired)
256                         bufstr_set(_MapInfo_filtered, ++j, ftos(i));
257         }
258         MapInfo_count = j + 1;
259         MapInfo_ClearTemps();
260         return 1;
261 }
262
263 void MapInfo_Filter_Free()
264 {
265         if(_MapInfo_filtered_allocated)
266         {
267                 buf_del(_MapInfo_filtered);
268                 _MapInfo_filtered_allocated = 0;
269         }
270 }
271 #endif
272
273 // load info about the i-th map into the MapInfo_Map_* globals
274 string MapInfo_BSPName_ByID(float i)
275 {
276         return _MapInfo_GlobItem(MapInfo_FilterList_Lookup(i));
277 }
278
279 string unquote(string s)
280 {
281         float i, j, l;
282         l = strlen(s);
283         j = -1;
284         for(i = 0; i < l; ++i)
285         {
286                 string ch;
287                 ch = substring(s, i, 1);
288                 if(ch != " ") if(ch != "\"")
289                 {
290                         for(j = strlen(s) - i - 1; j > 0; --j)
291                         {
292                                 ch = substring(s, i+j, 1);
293                                 if(ch != " ") if(ch != "\"")
294                                         return substring(s, i, j+1);
295                         }
296                         return substring(s, i, 1);
297                 }
298         }
299         return "";
300 }
301
302 float MapInfo_Get_ByID(float i)
303 {
304         if(MapInfo_Get_ByName(MapInfo_BSPName_ByID(i), 0, 0))
305                 return 1;
306         return 0;
307 }
308
309 float _MapInfo_Generate(string pFilename) // 0: failure, 1: ok ent, 2: ok bsp
310 {
311         string fn;
312         float fh;
313         string s, k, v;
314         vector o;
315         float i;
316         float inWorldspawn;
317         float r;
318         float twoBaseModes;
319         float diameter, spawnpoints;
320
321         vector mapMins, mapMaxs;
322
323         r = 1;
324         fn = strcat("maps/", pFilename, ".ent");
325         fh = fopen(fn, FILE_READ);
326         if(fh < 0)
327         {
328                 r = 2;
329                 fn = strcat("maps/", pFilename, ".bsp");
330                 fh = fopen(fn, FILE_READ);
331         }
332         if(fh < 0)
333                 return 0;
334         print("Analyzing ", fn, " to generate initial mapinfo; please edit that file later\n");
335
336         inWorldspawn = 2;
337         MapInfo_Map_supportedGametypes = 0;
338         spawnpoints = 0;
339
340         for(;;)
341         {
342                 if not((s = fgets(fh)))
343                         break;
344                 if(inWorldspawn == 1)
345                         if(startsWith(s, "}"))
346                                 inWorldspawn = 0;
347                 k = unquote(car(s));
348                 v = unquote(cdr(s));
349                 if(inWorldspawn)
350                 {
351                         if(k == "classname" && v == "worldspawn")
352                                 inWorldspawn = 1;
353                         else if(k == "author")
354                                 MapInfo_Map_author = v;
355                         else if(k == "_description")
356                                 MapInfo_Map_description = v;
357                         else if(k == "message")
358                         {
359                                 i = strstrofs(v, " by ", 0);
360                                 if(MapInfo_Map_author == "<AUTHOR>" && i >= 0)
361                                 {
362                                         MapInfo_Map_title = substring(v, 0, i);
363                                         MapInfo_Map_author = substring(v, i + 4, strlen(v) - (i + 4));
364                                 }
365                                 else
366                                         MapInfo_Map_title = v;
367                         }
368                 }
369                 else
370                 {
371                         if(k == "origin")
372                         {
373                                 o = stov(strcat("'", v, "'"));
374                                 mapMins_x = min(mapMins_x, o_x);
375                                 mapMins_y = min(mapMins_y, o_y);
376                                 mapMins_z = min(mapMins_z, o_z);
377                                 mapMaxs_x = max(mapMaxs_x, o_x);
378                                 mapMaxs_y = max(mapMaxs_y, o_y);
379                                 mapMaxs_z = max(mapMaxs_z, o_z);
380                         }
381                         else if(k == "classname")
382                         {
383                                 if(v == "dom_controlpoint")
384                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_DOMINATION;
385                                 else if(v == "item_flag_team2")
386                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_CTF;
387                                 else if(v == "team_CTF_blueflag")
388                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_CTF;
389                                 else if(v == "runematch_spawn_point")
390                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_RUNEMATCH;
391                                 else if(v == "target_assault_roundend")
392                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_ASSAULT;
393                                 else if(v == "onslaught_generator")
394                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_ONSLAUGHT;
395                                 else if(v == "info_player_team1")
396                                         ++spawnpoints;
397                                 else if(v == "info_player_team2")
398                                         ++spawnpoints;
399                                 else if(v == "info_player_start")
400                                         ++spawnpoints;
401                                 else if(v == "info_player_deathmatch")
402                                         ++spawnpoints;
403                                 else if(v == "trigger_race_checkpoint")
404                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_RACE;
405                                 else if(v == "weapon_nex")
406                                         { }
407                                 else if(v == "weapon_railgun")
408                                         { }
409                                 else if(startsWith(v, "weapon_"))
410                                         MapInfo_Map_supportedFeatures |= MAPINFO_FEATURE_WEAPONS;
411                         }
412                 }
413         }
414         if(inWorldspawn)
415         {
416                 print(fn, " ended still in worldspawn, BUG\n");
417                 return 0;
418         }
419         diameter = vlen(mapMaxs - mapMins);
420
421         twoBaseModes = MapInfo_Map_supportedGametypes & (MAPINFO_TYPE_CTF | MAPINFO_TYPE_ASSAULT | MAPINFO_TYPE_RACE);
422         if(twoBaseModes && (MapInfo_Map_supportedGametypes == twoBaseModes))
423         {
424                 // we have a CTF-only or Assault-only map. Don't add other modes then,
425                 // as the map is too symmetric for them.
426         }
427         else
428         {
429                 MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_DEATHMATCH;      // DM always works
430                 MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_LMS;             // LMS always works
431
432                 if(spawnpoints >= 8  && diameter > 4096)
433                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_TEAM_DEATHMATCH;
434                 if(                     diameter < 4096)
435                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_ARENA;
436                 if(spawnpoints >= 12 && diameter > 5120)
437                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_KEYHUNT;
438         }
439
440         dprint("-> diameter ",    ftos(diameter));
441         dprint(";  spawnpoints ", ftos(spawnpoints));
442         dprint(";  modes ",       ftos(MapInfo_Map_supportedGametypes), "\n");
443
444         fclose(fh);
445
446         return r;
447 }
448
449 void _MapInfo_Map_Reset()
450 {
451         MapInfo_Map_title = "<TITLE>";
452         MapInfo_Map_description = "<DESCRIPTION>";
453         MapInfo_Map_author = "<AUTHOR>";
454         MapInfo_Map_supportedGametypes = 0;
455         MapInfo_Map_supportedFeatures = 0;
456         MapInfo_Map_flags = 0;
457         MapInfo_Map_clientstuff = "";
458         MapInfo_Map_fog = "";
459         MapInfo_Map_mins = '0 0 0';
460         MapInfo_Map_maxs = '0 0 0';
461 }
462
463 void _MapInfo_Map_ApplyGametype(string s, float pWantedType, float pThisType)
464 {
465         string sa;
466         MapInfo_Map_supportedGametypes |= pThisType;
467         if(!(pThisType & pWantedType))
468                 return;
469         
470         cvar_set("fraglimit", car(s));
471         s = cdr(s);
472
473         cvar_set("timelimit", car(s));
474         s = cdr(s);
475
476         if(pWantedType == MAPINFO_TYPE_TEAM_DEATHMATCH)
477         {
478                 sa = car(s); if(sa == "") sa = "2";
479                 cvar_set("g_tdm_teams", sa);
480                 s = cdr(s);
481         }
482
483         if(pWantedType == MAPINFO_TYPE_KEYHUNT)
484         {
485                 sa = car(s); if(sa == "") sa = "3";
486                 cvar_set("g_keyhunt_teams", sa);
487                 s = cdr(s);
488         }
489
490         if(pWantedType == MAPINFO_TYPE_CTF)
491         {
492                 sa = car(s); if(sa == "") sa = "10";
493                 if(cvar("g_ctf_win_mode") < 2)
494                         cvar_set("fraglimit", sa);
495                 s = cdr(s);
496         }
497
498         if(pWantedType == MAPINFO_TYPE_RACE)
499         {
500                 sa = car(s); if(sa == "") sa = cvar_string("fraglimit");
501                 if(cvar("g_race_teams"))
502                         cvar_set("fraglimit", sa);
503                 s = cdr(s);
504         }
505 }
506
507 float MapInfo_Type_FromString(string t)
508 {
509         if     (t == "dm")    return MAPINFO_TYPE_DEATHMATCH;
510         else if(t == "tdm")   return MAPINFO_TYPE_TEAM_DEATHMATCH;
511         else if(t == "dom")   return MAPINFO_TYPE_DOMINATION;
512         else if(t == "ctf")   return MAPINFO_TYPE_CTF;
513         else if(t == "rune")  return MAPINFO_TYPE_RUNEMATCH;
514         else if(t == "lms")   return MAPINFO_TYPE_LMS;
515         else if(t == "arena") return MAPINFO_TYPE_ARENA;
516         else if(t == "kh")    return MAPINFO_TYPE_KEYHUNT;
517         else if(t == "as")    return MAPINFO_TYPE_ASSAULT;
518         else if(t == "ons")   return MAPINFO_TYPE_ONSLAUGHT;
519         else if(t == "race")  return MAPINFO_TYPE_RACE;
520         else if(t == "all")   return MAPINFO_TYPE_ALL;
521         else                  return 0;
522 }
523
524 // load info about a map by name into the MapInfo_Map_* globals
525 float MapInfo_Get_ByName(string pFilename, float pAllowGenerate, float pGametypeToSet)
526 {
527         string fn;
528         string s, t;
529         float fh, fh2;
530         float r, f;
531
532         if(pGametypeToSet == 0)
533                 if(MapInfo_Cache_Retrieve(pFilename))
534                         return 1;
535
536         r = 1;
537
538         MapInfo_Map_bspname = pFilename;
539
540         // default all generic fields so they have "good" values in case something fails
541         fn = strcat("maps/", pFilename, ".mapinfo");
542         fh = fopen(fn, FILE_READ);
543         if(fh < 0)
544         {
545                 if(!pAllowGenerate)
546                         return 0;
547                 _MapInfo_Map_Reset();
548                 r = _MapInfo_Generate(pFilename);
549                 if(!r)
550                         return 0;
551                 fh = fopen(fn, FILE_WRITE);
552                 fputs(fh, strcat("title ", MapInfo_Map_title, "\n"));
553                 fputs(fh, strcat("description ", MapInfo_Map_description, "\n"));
554                 fputs(fh, strcat("author ", MapInfo_Map_author, "\n"));
555                 fputs(fh, strcat("cdtrack ", ftos(floor(random() * 9 + 2)), "\n")); // track from 2 to 10
556                 if(MapInfo_Map_supportedFeatures & MAPINFO_FEATURE_WEAPONS)       fputs(fh, "has weapons\n");
557                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_DEATHMATCH)      fputs(fh, "type dm 30 20\n");
558                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_TEAM_DEATHMATCH) fputs(fh, "type tdm 50 20 2\n");
559                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_DOMINATION)      fputs(fh, "type dom 200 20\n");
560                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_CTF)             fputs(fh, "type ctf 300 20 10\n");
561                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_RUNEMATCH)       fputs(fh, "type rune 200 20\n");
562                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_LMS)             fputs(fh, "type lms 9 20\n");
563                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_ARENA)           fputs(fh, "type arena 10 20\n");
564                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_KEYHUNT)         fputs(fh, "type kh 1000 20 3\n");
565                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_ASSAULT)         fputs(fh, "type as 20\n");
566                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_RACE)            fputs(fh, "type race 5 20 15\n");
567                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_ONSLAUGHT)       fputs(fh, "type ons 20\n");
568
569                 fh2 = fopen(strcat("scripts/", pFilename, ".arena"), FILE_READ);
570                 if(fh2 >= 0)
571                 {
572                         fclose(fh2);
573                         fputs(fh, "settemp_for_type all sv_q3acompat_machineshotgunswap 1\n");
574                 }
575
576                 fputs(fh, "// optional: fog density red green blue alpha mindist maxdist\n");
577                 fputs(fh, "// optional: settemp_for_type (all|gametypename) cvarname value\n");
578                 fputs(fh, "// optional: clientsettemp_for_type (all|gametypename) cvarname value\n");
579                 fputs(fh, "// optional: size mins_x mins_y mins_z maxs_x maxs_y maxs_z\n");
580                 fputs(fh, "// optional: hidden\n");
581
582                 fclose(fh);
583                 r = 2;
584                 // return r;
585                 fh = fopen(fn, FILE_READ);
586                 if(fh < 0)
587                         error("... but I just wrote it!");
588         }
589
590         _MapInfo_Map_Reset();
591         for(;;)
592         {
593                 if not((s = fgets(fh)))
594                         break;
595
596                 // catch different sorts of comments
597                 if(s == "")                    // empty lines
598                         continue;
599                 if(substring(s, 0, 1) == "#")  // UNIX style
600                         continue;
601                 if(substring(s, 0, 2) == "//") // C++ style
602                         continue;
603                 if(substring(s, 0, 1) == "_")  // q3map style
604                         continue;
605
606                 t = car(s); s = cdr(s);
607                 if(t == "title")
608                         MapInfo_Map_title = s;
609                 else if(t == "description")
610                         MapInfo_Map_description = s;
611                 else if(t == "author")
612                         MapInfo_Map_author = s;
613                 else if(t == "has")
614                 {
615                         t = car(s); s = cdr(s);
616                         if     (t == "weapons") MapInfo_Map_supportedFeatures |= MAPINFO_FEATURE_WEAPONS;
617                         else
618                                 dprint("Map ", pFilename, " supports unknown feature ", t, ", ignored\n");
619                 }
620                 else if(t == "hidden")
621                 {
622                         MapInfo_Map_flags |= MAPINFO_FLAG_HIDDEN;
623                 }
624                 else if(t == "type")
625                 {
626                         t = car(s); s = cdr(s);
627                         f = MapInfo_Type_FromString(t);
628                         if(f)
629                                 _MapInfo_Map_ApplyGametype (s, pGametypeToSet, f);
630                         else
631                                 dprint("Map ", pFilename, " supports unknown game type ", t, ", ignored\n");
632                 }
633                 else if(t == "size")
634                 {
635                         float a, b, c, d, e;
636                         t = car(s); s = cdr(s); a = stof(t);
637                         t = car(s); s = cdr(s); b = stof(t);
638                         t = car(s); s = cdr(s); c = stof(t);
639                         t = car(s); s = cdr(s); d = stof(t);
640                         t = car(s); s = cdr(s); e = stof(t);
641                         if(s == "")
642                                 print("Map ", pFilename, " contains an incorrect size line (not enough params), syntax: size mins_x mins_y mins_z maxs_x maxs_y maxs_z\n");
643                         else
644                         {
645                                 t = car(s); s = cdr(s); f = stof(t);
646                                 if(s != "")
647                                         print("Map ", pFilename, " contains an incorrect size line (too many params), syntax: size mins_x mins_y mins_z maxs_x maxs_y maxs_z\n");
648                                 else
649                                 {
650                                         if(a >= d || b >= e || c >= f)
651                                                 print("Map ", pFilename, " contains an incorrect size line, mins have to be < maxs\n");
652                                         else
653                                         {
654                                                 MapInfo_Map_mins_x = a;
655                                                 MapInfo_Map_mins_y = b;
656                                                 MapInfo_Map_mins_z = c;
657                                                 MapInfo_Map_maxs_x = d;
658                                                 MapInfo_Map_maxs_y = e;
659                                                 MapInfo_Map_maxs_z = f;
660                                         }
661                                 }
662                         }
663                 }
664                 else if(t == "settemp_for_type")
665                 {
666                         t = car(s); s = cdr(s);
667                         if((f = MapInfo_Type_FromString(t)))
668                         {
669                                 if(f & pGametypeToSet)
670                                 {
671                                         t = car(s); s = cdr(s);
672                                         if not(cvar_value_issafe(t))
673                                                 print("Map ", pFilename, " contains a potentially harmful setting, ignored\n");
674                                         else if not (cvar_value_issafe(s))
675                                                 print("Map ", pFilename, " contains a potentially harmful setting, ignored\n");
676                                         else
677                                         {
678                                                 dprint("Applying temporary setting ", t, " := ", s, "\n");
679                                                 cvar_settemp(t, s);
680                                         }
681                                 }
682                         }
683                         else
684                         {
685                                 dprint("Map ", pFilename, " has a setting for unknown game type ", t, ", ignored\n");
686                         }
687                 }
688                 else if(t == "clientsettemp_for_type")
689                 {
690                         t = car(s); s = cdr(s);
691                         if((f = MapInfo_Type_FromString(t)))
692                         {
693                                 if(f & pGametypeToSet)
694                                 {
695                                         t = car(s); s = cdr(s);
696                                         if not(cvar_value_issafe(t))
697                                                 print("Map ", pFilename, " contains a potentially harmful client setting, ignored\n");
698                                         else if not (cvar_value_issafe(s))
699                                                 print("Map ", pFilename, " contains a potentially harmful client setting, ignored\n");
700                                         else
701                                         {
702                                                 dprint("Applying temporary client setting ", t, " := ", s, "\n");
703                                                 MapInfo_Map_clientstuff = strcat(
704                                                         MapInfo_Map_clientstuff, "cl_cmd settemp \"", t, "\" \"", s, "\"\n"
705                                                 );
706                                         }
707                                 }
708                         }
709                         else
710                         {
711                                 dprint("Map ", pFilename, " has a client setting for unknown game type ", t, ", ignored\n");
712                         }
713                 }
714                 else if(t == "fog")
715                 {
716                         if not(cvar_value_issafe(t))
717                                 print("Map ", pFilename, " contains a potentially harmful fog setting, ignored\n");
718                         else
719                                 MapInfo_Map_fog = s;
720                 }
721                 else if(t == "cdtrack")
722                 {
723                         if(pGametypeToSet)
724                         {
725                                 if not(cvar_value_issafe(t))
726                                         print("Map ", pFilename, " contains a potentially harmful cdtrack, ignored\n");
727                                 else
728                                         MapInfo_Map_clientstuff = strcat(
729                                                 MapInfo_Map_clientstuff, "cd loop \"", s, "\"\n"
730                                         );
731                         }
732                 }
733                 else
734                         dprint("Map ", pFilename, " provides unknown info item ", t, ", ignored\n");
735         }
736         fclose(fh);
737         if(pGametypeToSet)
738                 if(!(MapInfo_Map_supportedGametypes & pGametypeToSet))
739                         error("Can't select the requested game type. Bailing out.");
740         MapInfo_Cache_Store();
741         if(MapInfo_Map_supportedGametypes != 0)
742                 return r;
743         dprint("Map ", pFilename, " supports no game types, ignored\n");
744         return 0;
745 }
746
747 float MapInfo_FindName(string s)
748 {
749         // if there is exactly one map of prefix s, return it
750         // if not, return the null string
751         // note that DP sorts glob results... so I can use a binary search
752         float l, r, m, cmp;
753         l = 0;
754         r = MapInfo_count;
755         // invariants: r is behind s, l-1 is equal or before
756         while(l != r)
757         {
758                 m = floor((l + r) / 2);
759                 MapInfo_FindName_match = _MapInfo_GlobItem(MapInfo_FilterList_Lookup(m));
760                 cmp = strcasecmp(MapInfo_FindName_match, s);
761                 if(cmp == 0)
762                         return m; // found and good
763                 if(cmp < 0)
764                         l = m + 1; // l-1 is before s
765                 else
766                         r = m; // behind s
767         }
768         MapInfo_FindName_match = _MapInfo_GlobItem(MapInfo_FilterList_Lookup(l));
769         MapInfo_FindName_firstResult = l;
770         // r == l, so: l is behind s, l-1 is before
771         // SO: if there is any, l is the one with the right prefix
772         //     and l+1 may be one too
773         if(l == MapInfo_count)
774         {
775                 MapInfo_FindName_match = string_null;
776                 MapInfo_FindName_firstResult = -1;
777                 return -1; // no MapInfo_FindName_match, behind last item
778         }
779         if(!startsWithNocase(MapInfo_FindName_match, s))
780         {
781                 MapInfo_FindName_match = string_null;
782                 MapInfo_FindName_firstResult = -1;
783                 return -1; // wrong prefix
784         }
785         if(l == MapInfo_count - 1)
786                 return l; // last one, nothing can follow => unique
787         if(startsWithNocase(_MapInfo_GlobItem(MapInfo_FilterList_Lookup(l + 1)), s))
788         {
789                 MapInfo_FindName_match = string_null;
790                 return -1; // ambigous MapInfo_FindName_match
791         }
792         return l;
793 }
794
795 string MapInfo_FixName(string s)
796 {
797         MapInfo_FindName(s);
798         return MapInfo_FindName_match;
799 }
800
801 float MapInfo_CurrentFeatures()
802 {
803         float req;
804         req = 0;
805         if(!(cvar("g_lms") || cvar("g_instagib") || cvar("g_minstagib") || cvar("g_nixnex") || cvar("g_rocketarena") || !cvar("g_pickup_items") || cvar("g_race")))
806                 req |= MAPINFO_FEATURE_WEAPONS;
807         return req;
808 }
809
810 float MapInfo_CurrentGametype()
811 {
812         if(cvar("g_domination"))
813                 return MAPINFO_TYPE_DOMINATION;
814         else if(cvar("g_ctf"))
815                 return MAPINFO_TYPE_CTF;
816         else if(cvar("g_runematch"))
817                 return MAPINFO_TYPE_RUNEMATCH;
818         else if(cvar("g_tdm"))
819                 return MAPINFO_TYPE_TEAM_DEATHMATCH;
820         else if(cvar("g_assault"))
821                 return MAPINFO_TYPE_ASSAULT;
822         else if(cvar("g_lms"))
823                 return MAPINFO_TYPE_LMS;
824         else if(cvar("g_arena"))
825                 return MAPINFO_TYPE_ARENA;
826         else if(cvar("g_keyhunt"))
827                 return MAPINFO_TYPE_KEYHUNT;
828         else if(cvar("g_onslaught"))
829                 return MAPINFO_TYPE_ONSLAUGHT;
830         else if(cvar("g_race"))
831                 return MAPINFO_TYPE_RACE;
832         else
833                 return MAPINFO_TYPE_DEATHMATCH;
834 }
835
836 float _MapInfo_CheckMap(string s) // returns 0 if the map can't be played with the current settings, 1 otherwise
837 {
838         if(!MapInfo_Get_ByName(s, 1, 0))
839                 return 0;
840         if((MapInfo_Map_supportedGametypes & MapInfo_CurrentGametype()) == 0)
841                 return 0;
842         if((MapInfo_Map_supportedFeatures & MapInfo_CurrentFeatures()) != MapInfo_CurrentFeatures())
843                 return 0;
844         return 1;
845 }
846
847 float MapInfo_CheckMap(string s) // returns 0 if the map can't be played with the current settings, 1 otherwise
848 {
849         float r;
850         r = _MapInfo_CheckMap(s);
851         MapInfo_ClearTemps();
852         return r;
853 }
854
855 void MapInfo_SwitchGameType(float t)
856 {
857         cvar_set("gamecfg",      "0");
858         cvar_set("g_dm",         (t == MAPINFO_TYPE_DEATHMATCH)      ? "1" : "0");
859         cvar_set("g_tdm",        (t == MAPINFO_TYPE_TEAM_DEATHMATCH) ? "1" : "0");
860         cvar_set("g_domination", (t == MAPINFO_TYPE_DOMINATION)      ? "1" : "0");
861         cvar_set("g_ctf",        (t == MAPINFO_TYPE_CTF)             ? "1" : "0");
862         cvar_set("g_runematch",  (t == MAPINFO_TYPE_RUNEMATCH)       ? "1" : "0");
863         cvar_set("g_lms",        (t == MAPINFO_TYPE_LMS)             ? "1" : "0");
864         cvar_set("g_arena",      (t == MAPINFO_TYPE_ARENA)           ? "1" : "0");
865         cvar_set("g_keyhunt",    (t == MAPINFO_TYPE_KEYHUNT)         ? "1" : "0");
866         cvar_set("g_assault",    (t == MAPINFO_TYPE_ASSAULT)         ? "1" : "0");
867         cvar_set("g_onslaught",  (t == MAPINFO_TYPE_ONSLAUGHT)       ? "1" : "0");
868         cvar_set("g_race",       (t == MAPINFO_TYPE_RACE)            ? "1" : "0");
869 }
870
871 void MapInfo_LoadMap(string s)
872 {
873         MapInfo_Map_supportedGametypes = 0;
874         if(!MapInfo_CheckMap(s))
875         {
876                 print("EMERGENCY: can't play the selected map in the given game mode. Falling back to DM.\n");
877                 MapInfo_SwitchGameType(MAPINFO_TYPE_DEATHMATCH);
878         }
879         localcmd(strcat("\nsettemp_restore\nchangelevel ", s, "\n"));
880 }
881
882 string MapInfo_ListAllowedMaps(float pRequiredFlags, float pForbiddenFlags)
883 {
884         string out;
885         float i;
886
887         // to make absolutely sure:
888         MapInfo_Enumerate();
889         MapInfo_FilterGametype(MapInfo_CurrentGametype(), MapInfo_CurrentFeatures(), pRequiredFlags, pForbiddenFlags, 0);
890
891         out = "";
892         for(i = 0; i < MapInfo_count; ++i)
893                 out = strcat(out, " ", _MapInfo_GlobItem(MapInfo_FilterList_Lookup(i)));
894         return substring(out, 1, strlen(out) - 1);
895 }
896
897 void MapInfo_LoadMapSettings(string s) // to be called from worldspawn
898 {
899         float t;
900         if(!_MapInfo_CheckMap(s)) // with underscore, it keeps temps
901         {
902                 if(MapInfo_Map_supportedGametypes <= 0)
903                         error("Mapinfo system is not functional at all. BAILED OUT.\n");
904
905                 t = 1;
906                 while(!(MapInfo_Map_supportedGametypes & 1))
907                 {
908                         t *= 2;
909                         MapInfo_Map_supportedGametypes = floor(MapInfo_Map_supportedGametypes / 2);
910                 }
911                 // t is now a supported mode!
912                 print("EMERGENCY: can't play the selected map in the given game mode. Falling back to a supported mode.\n");
913                 MapInfo_SwitchGameType(t);
914         }
915         cvar_settemp_restore();
916         MapInfo_Get_ByName(s, 1, MapInfo_CurrentGametype());
917 }
918
919 void MapInfo_ClearTemps()
920 {
921         MapInfo_Map_bspname = string_null;
922         MapInfo_Map_title = string_null;
923         MapInfo_Map_description = string_null;
924         MapInfo_Map_author = string_null;
925         MapInfo_Map_clientstuff = string_null;
926         MapInfo_Map_supportedGametypes = 0;
927         MapInfo_Map_supportedFeatures = 0;
928 }
929
930 void MapInfo_Shutdown()
931 {
932         MapInfo_ClearTemps();
933         MapInfo_Filter_Free();
934         MapInfo_Cache_Destroy();
935         if(_MapInfo_globopen)
936         {
937                 search_end(_MapInfo_globhandle);
938                 _MapInfo_globhandle = -1;
939                 _MapInfo_globopen = FALSE;
940         }
941 }