new parameter "leadlimit", abort the game if someone leads by that amount
[divverent/nexuiz.git] / data / qcsrc / common / mapinfo.qc
1 // generic string stuff
2 float startsWith(string haystack, string needle)
3 {
4         return substring(haystack, 0, strlen(needle)) == needle;
5 }
6 float startsWithNocase(string haystack, string needle)
7 {
8         return strcasecmp(substring(haystack, 0, strlen(needle)), needle) == 0;
9 }
10 string extractRestOfLine(string haystack, string needle)
11 {
12         if(startsWith(haystack, needle))
13                 return substring(haystack, strlen(needle), strlen(haystack) - strlen(needle));
14         return string_null;
15 }
16 string car(string s)
17 {
18         float o;
19         o = strstrofs(s, " ", 0);
20         if(o < 0)
21                 return s;
22         return substring(s, 0, o);
23 }
24 string cdr(string s)
25 {
26         float o;
27         o = strstrofs(s, " ", 0);
28         if(o < 0)
29                 return string_null;
30         return substring(s, o + 1, strlen(s) - (o + 1));
31 }
32
33 float _MapInfo_Cache_Active;
34 float _MapInfo_Cache_DB_NameToIndex;
35 float _MapInfo_Cache_Buf_IndexToMapData;
36
37 void MapInfo_Cache_Destroy()
38 {
39         if(!_MapInfo_Cache_Active)
40                 return;
41
42         db_close(_MapInfo_Cache_DB_NameToIndex);
43         buf_del(_MapInfo_Cache_Buf_IndexToMapData);
44         _MapInfo_Cache_Active = 0;
45 }
46
47 void MapInfo_Cache_Create()
48 {
49         MapInfo_Cache_Destroy();
50         _MapInfo_Cache_DB_NameToIndex = db_create();
51         _MapInfo_Cache_Buf_IndexToMapData = buf_create();
52         _MapInfo_Cache_Active = 1;
53 }
54
55 void MapInfo_Cache_Invalidate()
56 {
57         if(!_MapInfo_Cache_Active)
58                 return;
59
60         MapInfo_Cache_Create();
61 }
62
63 void MapInfo_Cache_Store()
64 {
65         float i;
66         string s;
67         if(!_MapInfo_Cache_Active)
68                 return;
69
70         s = db_get(_MapInfo_Cache_DB_NameToIndex, MapInfo_Map_bspname);
71         if(!s) // empty string is NOT valid here!
72         {
73                 i = buf_getsize(_MapInfo_Cache_Buf_IndexToMapData);
74                 db_put(_MapInfo_Cache_DB_NameToIndex, MapInfo_Map_bspname, ftos(i));
75         }
76         else
77                 i = stof(s);
78
79         // now store all the stuff
80         bufstr_set(_MapInfo_Cache_Buf_IndexToMapData,   i, MapInfo_Map_bspname);
81         bufstr_set(_MapInfo_Cache_Buf_IndexToMapData, ++i, MapInfo_Map_title);
82         bufstr_set(_MapInfo_Cache_Buf_IndexToMapData, ++i, MapInfo_Map_description);
83         bufstr_set(_MapInfo_Cache_Buf_IndexToMapData, ++i, MapInfo_Map_author);
84         bufstr_set(_MapInfo_Cache_Buf_IndexToMapData, ++i, ftos(MapInfo_Map_supportedGametypes));
85         bufstr_set(_MapInfo_Cache_Buf_IndexToMapData, ++i, ftos(MapInfo_Map_supportedFeatures));
86         bufstr_set(_MapInfo_Cache_Buf_IndexToMapData, ++i, ftos(MapInfo_Map_flags));
87 }
88
89 float MapInfo_Cache_Retrieve(string map)
90 {
91         float i;
92         string s;
93         if(!_MapInfo_Cache_Active)
94                 return 0;
95
96         s = db_get(_MapInfo_Cache_DB_NameToIndex, map);
97         if(!s)
98                 return 0;
99         i = stof(s);
100
101         // now retrieve all the stuff
102         MapInfo_Map_bspname = bufstr_get(_MapInfo_Cache_Buf_IndexToMapData, i);
103         MapInfo_Map_title = bufstr_get(_MapInfo_Cache_Buf_IndexToMapData, ++i);
104         MapInfo_Map_description = bufstr_get(_MapInfo_Cache_Buf_IndexToMapData, ++i);
105         MapInfo_Map_author = bufstr_get(_MapInfo_Cache_Buf_IndexToMapData, ++i);
106         MapInfo_Map_supportedGametypes = stof(bufstr_get(_MapInfo_Cache_Buf_IndexToMapData, ++i));
107         MapInfo_Map_supportedFeatures = stof(bufstr_get(_MapInfo_Cache_Buf_IndexToMapData, ++i));
108         MapInfo_Map_flags = stof(bufstr_get(_MapInfo_Cache_Buf_IndexToMapData, ++i));
109         return 1;
110 }
111
112 // GLOB HANDLING (for all BSP files)
113 float _MapInfo_globopen;
114 float _MapInfo_globcount; 
115 float _MapInfo_globhandle;
116 string _MapInfo_GlobItem(float i)
117 {
118         string s;
119         s = search_getfilename(_MapInfo_globhandle, i);
120         return substring(s, 5, strlen(s) - 9); // without maps/ and .bsp
121 }
122
123 void MapInfo_Enumerate()
124 {
125         if(_MapInfo_globopen)
126                 search_end(_MapInfo_globhandle);
127         MapInfo_Cache_Invalidate();
128         _MapInfo_globhandle = search_begin("maps/*.bsp", TRUE, TRUE);
129         _MapInfo_globcount = search_getsize(_MapInfo_globhandle);
130         _MapInfo_globopen = 1;
131 }
132
133 // filter the info by game type mask (updates MapInfo_count)
134 //
135 float _MapInfo_filtered;
136 float _MapInfo_filtered_allocated;
137 float MapInfo_FilterList_Lookup(float i)
138 {
139         return stof(bufstr_get(_MapInfo_filtered, i));
140 }
141
142 void _MapInfo_FilterList_swap(float i, float j, entity pass)
143 {
144         string h;
145         h = bufstr_get(_MapInfo_filtered, i);
146         bufstr_set(_MapInfo_filtered, i, bufstr_get(_MapInfo_filtered, j));
147         bufstr_set(_MapInfo_filtered, j, h);
148 }
149
150 float _MapInfo_FilterList_cmp(float i, float j, entity pass)
151 {
152         string a, b;
153         a = _MapInfo_GlobItem(stof(bufstr_get(_MapInfo_filtered, i)));
154         b = _MapInfo_GlobItem(stof(bufstr_get(_MapInfo_filtered, j)));
155         return strcasecmp(a, b);
156 }
157
158 float MapInfo_FilterGametype(float pGametype, float pFeatures, float pFlagsRequired, float pFlagsForbidden, float pAbortOnGenerate)
159 {
160         float i, j;
161         if not(_MapInfo_filtered_allocated)
162         {
163                 _MapInfo_filtered_allocated = 1;
164                 _MapInfo_filtered = buf_create();
165         }
166         MapInfo_count = 0;
167         for(i = 0, j = -1; i < _MapInfo_globcount; ++i)
168         {
169                 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.
170                         if(pAbortOnGenerate)
171                         {
172                                 dprint("Autogenerated a .mapinfo, doing the rest later.\n");
173                                 MapInfo_progress = i / _MapInfo_globcount;
174                                 return 0;
175                         }
176                 if((MapInfo_Map_supportedGametypes & pGametype) != 0)
177                 if((MapInfo_Map_supportedFeatures & pFeatures) == pFeatures)
178                 if((MapInfo_Map_flags & pFlagsForbidden) == 0)
179                 if((MapInfo_Map_flags & pFlagsRequired) == pFlagsRequired)
180                         bufstr_set(_MapInfo_filtered, ++j, ftos(i));
181         }
182         MapInfo_count = j + 1;
183         MapInfo_ClearTemps();
184         
185         // sometimes the glob isn't sorted nicely, so fix it here...
186         heapsort(MapInfo_count, _MapInfo_FilterList_swap, _MapInfo_FilterList_cmp, world);
187
188         return 1;
189 }
190
191 void MapInfo_Filter_Free()
192 {
193         if(_MapInfo_filtered_allocated)
194         {
195                 buf_del(_MapInfo_filtered);
196                 _MapInfo_filtered_allocated = 0;
197         }
198 }
199
200 // load info about the i-th map into the MapInfo_Map_* globals
201 string MapInfo_BSPName_ByID(float i)
202 {
203         return _MapInfo_GlobItem(MapInfo_FilterList_Lookup(i));
204 }
205
206 string unquote(string s)
207 {
208         float i, j, l;
209         l = strlen(s);
210         j = -1;
211         for(i = 0; i < l; ++i)
212         {
213                 string ch;
214                 ch = substring(s, i, 1);
215                 if(ch != " ") if(ch != "\"")
216                 {
217                         for(j = strlen(s) - i - 1; j > 0; --j)
218                         {
219                                 ch = substring(s, i+j, 1);
220                                 if(ch != " ") if(ch != "\"")
221                                         return substring(s, i, j+1);
222                         }
223                         return substring(s, i, 1);
224                 }
225         }
226         return "";
227 }
228
229 float MapInfo_Get_ByID(float i)
230 {
231         if(MapInfo_Get_ByName(MapInfo_BSPName_ByID(i), 0, 0))
232                 return 1;
233         return 0;
234 }
235
236 string _MapInfo_Map_worldspawn_music;
237
238 float _MapInfo_Generate(string pFilename) // 0: failure, 1: ok ent, 2: ok bsp
239 {
240         string fn;
241         float fh;
242         string s, k, v;
243         vector o;
244         float i;
245         float inWorldspawn;
246         float r;
247         float twoBaseModes;
248         float diameter, spawnpoints;
249
250         vector mapMins, mapMaxs;
251
252         r = 1;
253         fn = strcat("maps/", pFilename, ".ent");
254         fh = fopen(fn, FILE_READ);
255         if(fh < 0)
256         {
257                 r = 2;
258                 fn = strcat("maps/", pFilename, ".bsp");
259                 fh = fopen(fn, FILE_READ);
260         }
261         if(fh < 0)
262                 return 0;
263         print("Analyzing ", fn, " to generate initial mapinfo; please edit that file later\n");
264
265         inWorldspawn = 2;
266         MapInfo_Map_supportedGametypes = 0;
267         spawnpoints = 0;
268         _MapInfo_Map_worldspawn_music = "";
269
270         for(;;)
271         {
272                 if not((s = fgets(fh)))
273                         break;
274                 if(inWorldspawn == 1)
275                         if(startsWith(s, "}"))
276                                 inWorldspawn = 0;
277                 k = unquote(car(s));
278                 v = unquote(cdr(s));
279                 if(inWorldspawn)
280                 {
281                         if(k == "classname" && v == "worldspawn")
282                                 inWorldspawn = 1;
283                         else if(k == "author")
284                                 MapInfo_Map_author = v;
285                         else if(k == "_description")
286                                 MapInfo_Map_description = v;
287                         else if(k == "music")
288                                 _MapInfo_Map_worldspawn_music = v;
289                         else if(k == "noise")
290                                 _MapInfo_Map_worldspawn_music = v;
291                         else if(k == "message")
292                         {
293                                 i = strstrofs(v, " by ", 0);
294                                 if(MapInfo_Map_author == "<AUTHOR>" && i >= 0)
295                                 {
296                                         MapInfo_Map_title = substring(v, 0, i);
297                                         MapInfo_Map_author = substring(v, i + 4, strlen(v) - (i + 4));
298                                 }
299                                 else
300                                         MapInfo_Map_title = v;
301                         }
302                 }
303                 else
304                 {
305                         if(k == "origin")
306                         {
307                                 o = stov(strcat("'", v, "'"));
308                                 mapMins_x = min(mapMins_x, o_x);
309                                 mapMins_y = min(mapMins_y, o_y);
310                                 mapMins_z = min(mapMins_z, o_z);
311                                 mapMaxs_x = max(mapMaxs_x, o_x);
312                                 mapMaxs_y = max(mapMaxs_y, o_y);
313                                 mapMaxs_z = max(mapMaxs_z, o_z);
314                         }
315                         else if(k == "classname")
316                         {
317                                 if(v == "dom_controlpoint")
318                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_DOMINATION;
319                                 else if(v == "item_flag_team2")
320                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_CTF;
321                                 else if(v == "team_CTF_blueflag")
322                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_CTF;
323                                 else if(v == "runematch_spawn_point")
324                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_RUNEMATCH;
325                                 else if(v == "target_assault_roundend")
326                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_ASSAULT;
327                                 else if(v == "onslaught_generator")
328                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_ONSLAUGHT;
329                                 else if(substring(v, 0, 8) == "nexball_" || substring(v, 0, 4) == "ball")
330                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_NEXBALL;
331                                 else if(v == "info_player_team1")
332                                         ++spawnpoints;
333                                 else if(v == "info_player_team2")
334                                         ++spawnpoints;
335                                 else if(v == "info_player_start")
336                                         ++spawnpoints;
337                                 else if(v == "info_player_deathmatch")
338                                         ++spawnpoints;
339                                 else if(v == "trigger_race_checkpoint")
340                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_RACE;
341                                 else if(v == "weapon_nex")
342                                         { }
343                                 else if(v == "weapon_railgun")
344                                         { }
345                                 else if(startsWith(v, "weapon_"))
346                                         MapInfo_Map_supportedFeatures |= MAPINFO_FEATURE_WEAPONS;
347                         }
348                 }
349         }
350         if(inWorldspawn)
351         {
352                 print(fn, " ended still in worldspawn, BUG\n");
353                 return 0;
354         }
355         diameter = vlen(mapMaxs - mapMins);
356
357         twoBaseModes = MapInfo_Map_supportedGametypes & (MAPINFO_TYPE_CTF | MAPINFO_TYPE_ASSAULT | MAPINFO_TYPE_RACE);
358         if(twoBaseModes && (MapInfo_Map_supportedGametypes == twoBaseModes))
359         {
360                 // we have a CTF-only or Assault-only map. Don't add other modes then,
361                 // as the map is too symmetric for them.
362         }
363         else
364         {
365                 MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_DEATHMATCH;      // DM always works
366                 MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_RUNEMATCH;       // Rune always works
367                 MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_LMS;             // LMS always works
368
369                 if(spawnpoints >= 8  && diameter > 4096)
370                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_TEAM_DEATHMATCH;
371                 if(                     diameter < 4096)
372                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_ARENA;
373                 if(spawnpoints >= 12 && diameter > 5120)
374                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_KEYHUNT;
375         }
376
377         dprint("-> diameter ",    ftos(diameter));
378         dprint(";  spawnpoints ", ftos(spawnpoints));
379         dprint(";  modes ",       ftos(MapInfo_Map_supportedGametypes), "\n");
380
381         fclose(fh);
382
383         return r;
384 }
385
386 void _MapInfo_Map_Reset()
387 {
388         MapInfo_Map_title = "<TITLE>";
389         MapInfo_Map_description = "<DESCRIPTION>";
390         MapInfo_Map_author = "<AUTHOR>";
391         MapInfo_Map_supportedGametypes = 0;
392         MapInfo_Map_supportedFeatures = 0;
393         MapInfo_Map_flags = 0;
394         MapInfo_Map_clientstuff = "";
395         MapInfo_Map_fog = "";
396         MapInfo_Map_mins = '0 0 0';
397         MapInfo_Map_maxs = '0 0 0';
398 }
399
400 void _MapInfo_Map_ApplyGametype(string s, float pWantedType, float pThisType)
401 {
402         string sa;
403         MapInfo_Map_supportedGametypes |= pThisType;
404         if(!(pThisType & pWantedType))
405                 return;
406         
407         if(pWantedType == MAPINFO_TYPE_ASSAULT || pWantedType == MAPINFO_TYPE_ONSLAUGHT) // these modes don't use fraglimit
408         {
409                 cvar_set("fraglimit", "0");
410         }
411         else
412         {
413                 cvar_set("fraglimit", car(s));
414                 s = cdr(s);
415         }
416
417         cvar_set("timelimit", car(s));
418         s = cdr(s);
419
420         if(pWantedType == MAPINFO_TYPE_TEAM_DEATHMATCH)
421         {
422                 sa = car(s); if(sa == "") sa = "2";
423                 cvar_set("g_tdm_teams", sa);
424                 s = cdr(s);
425         }
426
427         if(pWantedType == MAPINFO_TYPE_KEYHUNT)
428         {
429                 sa = car(s); if(sa == "") sa = "3";
430                 cvar_set("g_keyhunt_teams", sa);
431                 s = cdr(s);
432         }
433
434         if(pWantedType == MAPINFO_TYPE_CTF)
435         {
436                 sa = car(s); if(sa == "") sa = "10";
437                 if(cvar("g_ctf_win_mode") < 2)
438                         cvar_set("fraglimit", sa);
439                 s = cdr(s);
440         }
441
442         if(pWantedType == MAPINFO_TYPE_RACE)
443         {
444                 sa = car(s); if(sa == "") sa = cvar_string("fraglimit");
445                 if(cvar("g_race_teams"))
446                         cvar_set("fraglimit", sa);
447                 s = cdr(s);
448         }
449
450         sa = car(s); if(sa == "") sa = "0";
451         cvar_set("leadlimit", sa);
452         s = cdr(s);
453 }
454
455 float MapInfo_Type_FromString(string t)
456 {
457         if     (t == "dm")      return MAPINFO_TYPE_DEATHMATCH;
458         else if(t == "tdm")     return MAPINFO_TYPE_TEAM_DEATHMATCH;
459         else if(t == "dom")     return MAPINFO_TYPE_DOMINATION;
460         else if(t == "ctf")     return MAPINFO_TYPE_CTF;
461         else if(t == "rune")    return MAPINFO_TYPE_RUNEMATCH;
462         else if(t == "lms")     return MAPINFO_TYPE_LMS;
463         else if(t == "arena")   return MAPINFO_TYPE_ARENA;
464         else if(t == "kh")      return MAPINFO_TYPE_KEYHUNT;
465         else if(t == "as")      return MAPINFO_TYPE_ASSAULT;
466         else if(t == "ons")     return MAPINFO_TYPE_ONSLAUGHT;
467         else if(t == "race")    return MAPINFO_TYPE_RACE;
468         else if(t == "nexball") return MAPINFO_TYPE_NEXBALL;
469         else if(t == "all")     return MAPINFO_TYPE_ALL;
470         else                    return 0;
471 }
472
473 // load info about a map by name into the MapInfo_Map_* globals
474 float MapInfo_Get_ByName(string pFilename, float pAllowGenerate, float pGametypeToSet)
475 {
476         string fn;
477         string s, t;
478         float fh, fh2;
479         float r, f, n, i;
480
481         if(strstrofs(pFilename, "/", 0) >= 0)
482         {
483                 print("Invalid character in map name, ignored\n");
484                 return 0;
485         }
486
487         if(pGametypeToSet == 0)
488                 if(MapInfo_Cache_Retrieve(pFilename))
489                         return 1;
490
491         r = 1;
492
493         MapInfo_Map_bspname = pFilename;
494
495         // default all generic fields so they have "good" values in case something fails
496         fn = strcat("maps/", pFilename, ".mapinfo");
497         fh = fopen(fn, FILE_READ);
498         if(fh < 0)
499         {
500                 if(!pAllowGenerate)
501                         return 0;
502                 _MapInfo_Map_Reset();
503                 r = _MapInfo_Generate(pFilename);
504                 if(!r)
505                         return 0;
506                 fh = fopen(fn, FILE_WRITE);
507                 fputs(fh, strcat("title ", MapInfo_Map_title, "\n"));
508                 fputs(fh, strcat("description ", MapInfo_Map_description, "\n"));
509                 fputs(fh, strcat("author ", MapInfo_Map_author, "\n"));
510                 if(_MapInfo_Map_worldspawn_music != "")
511                 {
512                         if(
513                                 substring(_MapInfo_Map_worldspawn_music, strlen(_MapInfo_Map_worldspawn_music) - 4, 4) == ".wav"
514                                 ||
515                                 substring(_MapInfo_Map_worldspawn_music, strlen(_MapInfo_Map_worldspawn_music) - 4, 4) == ".ogg"
516                         )
517                                 fputs(fh, strcat("cdtrack ", substring(_MapInfo_Map_worldspawn_music, 0, strlen(_MapInfo_Map_worldspawn_music) - 4), "\n"));
518                         else
519                                 fputs(fh, strcat("cdtrack ", _MapInfo_Map_worldspawn_music, "\n"));
520                 }
521                 else
522                 {
523                         n = tokenize_console(cvar_string("g_cdtracks_remaplist"));
524                         s = strcat(" ", cvar_string("g_cdtracks_dontusebydefault"), " ");
525                         for(;;)
526                         {
527                                 i = floor(random() * n);
528                                 if(strstrofs(s, strcat(" ", argv(i), " "), 0) < 0)
529                                         break;
530                         }
531                         fputs(fh, strcat("cdtrack ", ftos(i + 1), "\n"));
532                 }
533                 if(MapInfo_Map_supportedFeatures & MAPINFO_FEATURE_WEAPONS)    
534                         fputs(fh, "has weapons\n");
535                 else
536                         fputs(fh, "// uncomment this if you added weapon pickups: has weapons\n");
537                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_DEATHMATCH)      fputs(fh, "type dm 30 20\n");
538                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_TEAM_DEATHMATCH) fputs(fh, "type tdm 50 20 2\n");
539                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_DOMINATION)      fputs(fh, "type dom 200 20\n");
540                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_CTF)             fputs(fh, "type ctf 300 20 10\n");
541                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_RUNEMATCH)       fputs(fh, "type rune 200 20\n");
542                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_LMS)             fputs(fh, "type lms 9 20\n");
543                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_ARENA)           fputs(fh, "type arena 10 20\n");
544                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_KEYHUNT)         fputs(fh, "type kh 1000 20 3\n");
545                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_ASSAULT)         fputs(fh, "type as 20\n");
546                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_RACE)            fputs(fh, "type race 5 20 15\n");
547                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_ONSLAUGHT)       fputs(fh, "type ons 20\n");
548                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_NEXBALL)         fputs(fh, "type nexball 5 20\n");
549
550                 fh2 = fopen(strcat("scripts/", pFilename, ".arena"), FILE_READ);
551                 if(fh2 >= 0)
552                 {
553                         fclose(fh2);
554                         fputs(fh, "settemp_for_type all sv_q3acompat_machineshotgunswap 1\n");
555                 }
556
557                 fputs(fh, "// optional: fog density red green blue alpha mindist maxdist\n");
558                 fputs(fh, "// optional: settemp_for_type (all|gametypename) cvarname value\n");
559                 fputs(fh, "// optional: clientsettemp_for_type (all|gametypename) cvarname value\n");
560                 fputs(fh, "// optional: size mins_x mins_y mins_z maxs_x maxs_y maxs_z\n");
561                 fputs(fh, "// optional: hidden\n");
562
563                 fclose(fh);
564                 r = 2;
565                 // return r;
566                 fh = fopen(fn, FILE_READ);
567                 if(fh < 0)
568                         error("... but I just wrote it!");
569         }
570
571         _MapInfo_Map_Reset();
572         for(;;)
573         {
574                 if not((s = fgets(fh)))
575                         break;
576
577                 // catch different sorts of comments
578                 if(s == "")                    // empty lines
579                         continue;
580                 if(substring(s, 0, 1) == "#")  // UNIX style
581                         continue;
582                 if(substring(s, 0, 2) == "//") // C++ style
583                         continue;
584                 if(substring(s, 0, 1) == "_")  // q3map style
585                         continue;
586
587                 t = car(s); s = cdr(s);
588                 if(t == "title")
589                         MapInfo_Map_title = s;
590                 else if(t == "description")
591                         MapInfo_Map_description = s;
592                 else if(t == "author")
593                         MapInfo_Map_author = s;
594                 else if(t == "has")
595                 {
596                         t = car(s); s = cdr(s);
597                         if     (t == "weapons") MapInfo_Map_supportedFeatures |= MAPINFO_FEATURE_WEAPONS;
598                         else
599                                 dprint("Map ", pFilename, " supports unknown feature ", t, ", ignored\n");
600                 }
601                 else if(t == "hidden")
602                 {
603                         MapInfo_Map_flags |= MAPINFO_FLAG_HIDDEN;
604                 }
605                 else if(t == "forbidden")
606                 {
607                         MapInfo_Map_flags |= MAPINFO_FLAG_FORBIDDEN;
608                 }
609                 else if(t == "type")
610                 {
611                         t = car(s); s = cdr(s);
612                         f = MapInfo_Type_FromString(t);
613                         if(f)
614                                 _MapInfo_Map_ApplyGametype (s, pGametypeToSet, f);
615                         else
616                                 dprint("Map ", pFilename, " supports unknown game type ", t, ", ignored\n");
617                 }
618                 else if(t == "size")
619                 {
620                         float a, b, c, d, e;
621                         t = car(s); s = cdr(s); a = stof(t);
622                         t = car(s); s = cdr(s); b = stof(t);
623                         t = car(s); s = cdr(s); c = stof(t);
624                         t = car(s); s = cdr(s); d = stof(t);
625                         t = car(s); s = cdr(s); e = stof(t);
626                         if(s == "")
627                                 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");
628                         else
629                         {
630                                 t = car(s); s = cdr(s); f = stof(t);
631                                 if(s != "")
632                                         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");
633                                 else
634                                 {
635                                         if(a >= d || b >= e || c >= f)
636                                                 print("Map ", pFilename, " contains an incorrect size line, mins have to be < maxs\n");
637                                         else
638                                         {
639                                                 MapInfo_Map_mins_x = a;
640                                                 MapInfo_Map_mins_y = b;
641                                                 MapInfo_Map_mins_z = c;
642                                                 MapInfo_Map_maxs_x = d;
643                                                 MapInfo_Map_maxs_y = e;
644                                                 MapInfo_Map_maxs_z = f;
645                                         }
646                                 }
647                         }
648                 }
649                 else if(t == "settemp_for_type")
650                 {
651                         t = car(s); s = cdr(s);
652                         if((f = MapInfo_Type_FromString(t)))
653                         {
654                                 if(f & pGametypeToSet)
655                                 {
656                                         t = car(s); s = cdr(s);
657                                         if not(cvar_value_issafe(t))
658                                                 print("Map ", pFilename, " contains a potentially harmful setting, ignored\n");
659                                         else if not (cvar_value_issafe(s))
660                                                 print("Map ", pFilename, " contains a potentially harmful setting, ignored\n");
661                                         else
662                                         {
663                                                 dprint("Applying temporary setting ", t, " := ", s, "\n");
664                                                 cvar_settemp(t, s);
665                                         }
666                                 }
667                         }
668                         else
669                         {
670                                 dprint("Map ", pFilename, " has a setting for unknown game type ", t, ", ignored\n");
671                         }
672                 }
673                 else if(t == "clientsettemp_for_type")
674                 {
675                         t = car(s); s = cdr(s);
676                         if((f = MapInfo_Type_FromString(t)))
677                         {
678                                 if(f & pGametypeToSet)
679                                 {
680                                         t = car(s); s = cdr(s);
681                                         if not(cvar_value_issafe(t))
682                                                 print("Map ", pFilename, " contains a potentially harmful client setting, ignored\n");
683                                         else if not (cvar_value_issafe(s))
684                                                 print("Map ", pFilename, " contains a potentially harmful client setting, ignored\n");
685                                         else
686                                         {
687                                                 dprint("Applying temporary client setting ", t, " := ", s, "\n");
688                                                 MapInfo_Map_clientstuff = strcat(
689                                                         MapInfo_Map_clientstuff, "cl_cmd settemp \"", t, "\" \"", s, "\"\n"
690                                                 );
691                                         }
692                                 }
693                         }
694                         else
695                         {
696                                 dprint("Map ", pFilename, " has a client setting for unknown game type ", t, ", ignored\n");
697                         }
698                 }
699                 else if(t == "fog")
700                 {
701                         if not(cvar_value_issafe(t))
702                                 print("Map ", pFilename, " contains a potentially harmful fog setting, ignored\n");
703                         else
704                                 MapInfo_Map_fog = s;
705                 }
706                 else if(t == "cdtrack")
707                 {
708                         if(pGametypeToSet)
709                         {
710                                 if not(cvar_value_issafe(t))
711                                         print("Map ", pFilename, " contains a potentially harmful cdtrack, ignored\n");
712                                 else
713                                         MapInfo_Map_clientstuff = strcat(
714                                                 MapInfo_Map_clientstuff, "cd loop \"", s, "\"\n"
715                                         );
716                         }
717                 }
718                 else
719                         dprint("Map ", pFilename, " provides unknown info item ", t, ", ignored\n");
720         }
721         fclose(fh);
722
723         if(!MapInfo_Map_supportedGametypes)
724                 _MapInfo_Map_ApplyGametype("30 20", pGametypeToSet, MAPINFO_TYPE_DEATHMATCH);
725
726         if(pGametypeToSet)
727                 if(!(MapInfo_Map_supportedGametypes & pGametypeToSet))
728                         error("Can't select the requested game type. Bailing out.");
729         MapInfo_Cache_Store();
730         if(MapInfo_Map_supportedGametypes != 0)
731                 return r;
732         dprint("Map ", pFilename, " supports no game types, ignored\n");
733         return 0;
734 }
735
736 float MapInfo_FindName(string s)
737 {
738         // if there is exactly one map of prefix s, return it
739         // if not, return the null string
740         // note that DP sorts glob results... so I can use a binary search
741         float l, r, m, cmp;
742         l = 0;
743         r = MapInfo_count;
744         // invariants: r is behind s, l-1 is equal or before
745         while(l != r)
746         {
747                 m = floor((l + r) / 2);
748                 MapInfo_FindName_match = _MapInfo_GlobItem(MapInfo_FilterList_Lookup(m));
749                 cmp = strcasecmp(MapInfo_FindName_match, s);
750                 if(cmp == 0)
751                         return m; // found and good
752                 if(cmp < 0)
753                         l = m + 1; // l-1 is before s
754                 else
755                         r = m; // behind s
756         }
757         MapInfo_FindName_match = _MapInfo_GlobItem(MapInfo_FilterList_Lookup(l));
758         MapInfo_FindName_firstResult = l;
759         // r == l, so: l is behind s, l-1 is before
760         // SO: if there is any, l is the one with the right prefix
761         //     and l+1 may be one too
762         if(l == MapInfo_count)
763         {
764                 MapInfo_FindName_match = string_null;
765                 MapInfo_FindName_firstResult = -1;
766                 return -1; // no MapInfo_FindName_match, behind last item
767         }
768         if(!startsWithNocase(MapInfo_FindName_match, s))
769         {
770                 MapInfo_FindName_match = string_null;
771                 MapInfo_FindName_firstResult = -1;
772                 return -1; // wrong prefix
773         }
774         if(l == MapInfo_count - 1)
775                 return l; // last one, nothing can follow => unique
776         if(startsWithNocase(_MapInfo_GlobItem(MapInfo_FilterList_Lookup(l + 1)), s))
777         {
778                 MapInfo_FindName_match = string_null;
779                 return -1; // ambigous MapInfo_FindName_match
780         }
781         return l;
782 }
783
784 string MapInfo_FixName(string s)
785 {
786         MapInfo_FindName(s);
787         return MapInfo_FindName_match;
788 }
789
790 float MapInfo_CurrentFeatures()
791 {
792         float req;
793         req = 0;
794         if(!(cvar("g_lms") || cvar("g_instagib") || cvar("g_minstagib") || cvar("g_nixnex") || cvar("g_rocketarena") || !cvar("g_pickup_items") || cvar("g_race") || cvar("g_nexball")))
795                 req |= MAPINFO_FEATURE_WEAPONS;
796         return req;
797 }
798
799 float MapInfo_CurrentGametype()
800 {
801         if(cvar("g_domination"))
802                 return MAPINFO_TYPE_DOMINATION;
803         else if(cvar("g_ctf"))
804                 return MAPINFO_TYPE_CTF;
805         else if(cvar("g_runematch"))
806                 return MAPINFO_TYPE_RUNEMATCH;
807         else if(cvar("g_tdm"))
808                 return MAPINFO_TYPE_TEAM_DEATHMATCH;
809         else if(cvar("g_assault"))
810                 return MAPINFO_TYPE_ASSAULT;
811         else if(cvar("g_lms"))
812                 return MAPINFO_TYPE_LMS;
813         else if(cvar("g_arena"))
814                 return MAPINFO_TYPE_ARENA;
815         else if(cvar("g_keyhunt"))
816                 return MAPINFO_TYPE_KEYHUNT;
817         else if(cvar("g_onslaught"))
818                 return MAPINFO_TYPE_ONSLAUGHT;
819         else if(cvar("g_race"))
820                 return MAPINFO_TYPE_RACE;
821         else if(cvar("g_nexball"))
822                 return MAPINFO_TYPE_NEXBALL;
823         else
824                 return MAPINFO_TYPE_DEATHMATCH;
825 }
826
827 float _MapInfo_CheckMap(string s) // returns 0 if the map can't be played with the current settings, 1 otherwise
828 {
829         if(!MapInfo_Get_ByName(s, 1, 0))
830                 return 0;
831         if((MapInfo_Map_supportedGametypes & MapInfo_CurrentGametype()) == 0)
832                 return 0;
833         if((MapInfo_Map_supportedFeatures & MapInfo_CurrentFeatures()) != MapInfo_CurrentFeatures())
834                 return 0;
835         return 1;
836 }
837
838 float MapInfo_CheckMap(string s) // returns 0 if the map can't be played with the current settings, 1 otherwise
839 {
840         float r;
841         r = _MapInfo_CheckMap(s);
842         MapInfo_ClearTemps();
843         return r;
844 }
845
846 string MapInfo_GetGameTypeCvar(float t)
847 {
848         switch(t)
849         {
850                 case MAPINFO_TYPE_DEATHMATCH: return "g_dm";
851                 case MAPINFO_TYPE_TEAM_DEATHMATCH: return "g_tdm";
852                 case MAPINFO_TYPE_DOMINATION: return "g_domination";
853                 case MAPINFO_TYPE_CTF: return "g_ctf";
854                 case MAPINFO_TYPE_RUNEMATCH: return "g_runematch";
855                 case MAPINFO_TYPE_LMS: return "g_lms";
856                 case MAPINFO_TYPE_ARENA: return "g_arena";
857                 case MAPINFO_TYPE_KEYHUNT: return "g_kh";
858                 case MAPINFO_TYPE_ASSAULT: return "g_assault";
859                 case MAPINFO_TYPE_ONSLAUGHT: return "g_onslaught";
860                 case MAPINFO_TYPE_RACE: return "g_race";
861                 default: return "";
862         }
863 }
864
865 void MapInfo_SwitchGameType(float t)
866 {
867         cvar_set("gamecfg",      "0");
868         cvar_set("g_dm",         (t == MAPINFO_TYPE_DEATHMATCH)      ? "1" : "0");
869         cvar_set("g_tdm",        (t == MAPINFO_TYPE_TEAM_DEATHMATCH) ? "1" : "0");
870         cvar_set("g_domination", (t == MAPINFO_TYPE_DOMINATION)      ? "1" : "0");
871         cvar_set("g_ctf",        (t == MAPINFO_TYPE_CTF)             ? "1" : "0");
872         cvar_set("g_runematch",  (t == MAPINFO_TYPE_RUNEMATCH)       ? "1" : "0");
873         cvar_set("g_lms",        (t == MAPINFO_TYPE_LMS)             ? "1" : "0");
874         cvar_set("g_arena",      (t == MAPINFO_TYPE_ARENA)           ? "1" : "0");
875         cvar_set("g_keyhunt",    (t == MAPINFO_TYPE_KEYHUNT)         ? "1" : "0");
876         cvar_set("g_assault",    (t == MAPINFO_TYPE_ASSAULT)         ? "1" : "0");
877         cvar_set("g_onslaught",  (t == MAPINFO_TYPE_ONSLAUGHT)       ? "1" : "0");
878         cvar_set("g_race",       (t == MAPINFO_TYPE_RACE)            ? "1" : "0");
879         cvar_set("g_nexball",    (t == MAPINFO_TYPE_NEXBALL)         ? "1" : "0");
880 }
881
882 void MapInfo_LoadMap(string s)
883 {
884         MapInfo_Map_supportedGametypes = 0;
885         if(!MapInfo_CheckMap(s))
886         {
887                 print("EMERGENCY: can't play the selected map in the given game mode. Falling back to DM.\n");
888                 MapInfo_SwitchGameType(MAPINFO_TYPE_DEATHMATCH);
889         }
890         localcmd(strcat("\nsettemp_restore\nchangelevel ", s, "\n"));
891 }
892
893 string MapInfo_ListAllowedMaps(float pRequiredFlags, float pForbiddenFlags)
894 {
895         string out;
896         float i;
897
898         // to make absolutely sure:
899         MapInfo_Enumerate();
900         MapInfo_FilterGametype(MapInfo_CurrentGametype(), MapInfo_CurrentFeatures(), pRequiredFlags, pForbiddenFlags, 0);
901
902         out = "";
903         for(i = 0; i < MapInfo_count; ++i)
904                 out = strcat(out, " ", _MapInfo_GlobItem(MapInfo_FilterList_Lookup(i)));
905         return substring(out, 1, strlen(out) - 1);
906 }
907
908 void MapInfo_LoadMapSettings(string s) // to be called from worldspawn
909 {
910         float t;
911         if(!_MapInfo_CheckMap(s)) // with underscore, it keeps temps
912         {
913                 if(MapInfo_Map_supportedGametypes <= 0)
914                         error("Mapinfo system is not functional at all. BAILED OUT.\n");
915
916                 t = 1;
917                 while(!(MapInfo_Map_supportedGametypes & 1))
918                 {
919                         t *= 2;
920                         MapInfo_Map_supportedGametypes = floor(MapInfo_Map_supportedGametypes / 2);
921                 }
922                 // t is now a supported mode!
923                 print("EMERGENCY: can't play the selected map in the given game mode. Falling back to a supported mode.\n");
924                 MapInfo_SwitchGameType(t);
925         }
926         cvar_settemp_restore();
927         MapInfo_Get_ByName(s, 1, MapInfo_CurrentGametype());
928 }
929
930 void MapInfo_ClearTemps()
931 {
932         MapInfo_Map_bspname = string_null;
933         MapInfo_Map_title = string_null;
934         MapInfo_Map_description = string_null;
935         MapInfo_Map_author = string_null;
936         MapInfo_Map_clientstuff = string_null;
937         MapInfo_Map_supportedGametypes = 0;
938         MapInfo_Map_supportedFeatures = 0;
939 }
940
941 void MapInfo_Shutdown()
942 {
943         MapInfo_ClearTemps();
944         MapInfo_Filter_Free();
945         MapInfo_Cache_Destroy();
946         if(_MapInfo_globopen)
947         {
948                 search_end(_MapInfo_globhandle);
949                 _MapInfo_globhandle = -1;
950                 _MapInfo_globopen = FALSE;
951         }
952 }