data/qcsrc/common/mapinfo.qc

   1 // internal toy
   2 void cvar_settemp(string key, string value)
   3 {
   4         //localcmd(strcat("\nsettemp ", t, " \"", s, "\"\n"));
   5
   6         // duplicate what this alias does:
   7         // alias settemp "settemp_list \"1 $1 $settemp_var $settemp_list\"; set $settemp_var \"${$1}\"; settemp_var ${settemp_var}x; $1 \"$2\""
   8
   9         cvar_set("settemp_list", strcat("1 ", key, " ", cvar_string("settemp_var"), " ", cvar_string("settemp_list")));
  10         registercvar(cvar_string("settemp_var"), "");
  11         cvar_set(cvar_string("settemp_var"), cvar_string(key));
  12         cvar_set("settemp_var", strcat(cvar_string("settemp_var"), "x"));
  13         cvar_set(key, value);
  14 }
  15
  16 void cvar_settemp_restore()
  17 {
  18         // undo what cvar_settemp did
  19         float n, i;
  20         n = tokenize(cvar_string("settemp_list"));
  21         for(i = 0; i < n - 3; i += 3)
  22                 cvar_set(argv(i + 1), cvar_string(argv(i + 2)));
  23         cvar_set("settemp_list", "0");
  24 }
  25
  26 // HUGE SET - stored in a string
  27 string HugeSetOfIntegers_empty()
  28 {
  29         return "";
  30 }
  31 float HugeSetOfIntegers_get(string pArr, float i)
  32 {
  33         return stof(substring(pArr, i * 4, 4));
  34 }
  35 float HugeSetOfIntegers_length(string pArr)
  36 {
  37         return strlen(pArr) / 4;
  38 }
  39 string HugeSetOfIntegers_concat(string a1, string a2)
  40 {
  41         return strcat(a1, a2);
  42 }
  43 string HugeSetOfIntegers_insert(string a1, float n, string a2)
  44         // special concat function to build up large lists in less time by binary concatenation
  45 {
  46         string s;
  47         s = strcat("    ", ftos(n));
  48         return strcat(a1, substring(s, strlen(s) - 4, 4), a2);
  49 }
  50
  51 // generic string stuff
  52 float startsWith(string haystack, string needle)
  53 {
  54         return substring(haystack, 0, strlen(needle)) == needle;
  55 }
  56 string extractRestOfLine(string haystack, string needle)
  57 {
  58         if(startsWith(haystack, needle))
  59                 return substring(haystack, strlen(needle), strlen(haystack) - strlen(needle));
  60         return string_null;
  61 }
  62 string car(string s)
  63 {
  64         float o;
  65         o = strstrofs(s, " ", 0);
  66         if(o < 0)
  67                 return s;
  68         return substring(s, 0, o);
  69 }
  70 string cdr(string s)
  71 {
  72         float o;
  73         o = strstrofs(s, " ", 0);
  74         if(o < 0)
  75                 return string_null;
  76         return substring(s, o + 1, strlen(s) - (o + 1));
  77 }
  78
  79 // GLOB HANDLING (for all BSP files)
  80 float _MapInfo_globopen;
  81 float _MapInfo_globcount;
  82 float _MapInfo_globhandle;
  83 string _MapInfo_GlobItem(float i)
  84 {
  85         string s;
  86         s = search_getfilename(_MapInfo_globhandle, i);
  87         return substring(s, 5, strlen(s) - 9); // without maps/ and .bsp
  88 }
  89
  90 void MapInfo_Enumerate()
  91 {
  92         if(_MapInfo_globopen)
  93                 search_end(_MapInfo_globhandle);
  94         _MapInfo_globhandle = search_begin("maps/*.bsp", TRUE, TRUE);
  95         _MapInfo_globcount = search_getsize(_MapInfo_globhandle);
  96         _MapInfo_globopen = 1;
  97 }
  98
  99 // filter the info by game type mask (updates MapInfo_count)
 100 string _MapInfo_filtered;
 101 string MapInfo_FilterGametype_Recursive(float pGametype, float pFeatures, float pBegin, float pEnd, float pAbortOnGenerate)
 102 {
 103         float m, valid;
 104         string l, r;
 105
 106         if(pBegin == pEnd)
 107                 return HugeSetOfIntegers_empty();
 108
 109         m = floor((pBegin + pEnd) / 2);
 110
 111         l = MapInfo_FilterGametype_Recursive(pGametype, pFeatures, pBegin, m, pAbortOnGenerate);
 112         if not(l)
 113                 return string_null; // BAIL OUT
 114         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.
 115                 if(pAbortOnGenerate)
 116                         return string_null; // BAIL OUT
 117         valid = (((MapInfo_Map_supportedGametypes & pGametype) != 0) && ((MapInfo_Map_supportedFeatures & pFeatures) == pFeatures));
 118         r = MapInfo_FilterGametype_Recursive(pGametype, pFeatures, m + 1, pEnd, pAbortOnGenerate);
 119         if not(r)
 120                 return string_null; // BAIL OUT
 121
 122         if(valid)
 123                 return HugeSetOfIntegers_insert(l, m, r);
 124         else
 125                 return HugeSetOfIntegers_concat(l, r);
 126 }
 127 float MapInfo_FilterGametype(float pGametype, float pFeatures, float pAbortOnGenerate)
 128 {
 129         if(_MapInfo_filtered)
 130                 strunzone(_MapInfo_filtered);
 131         _MapInfo_filtered = MapInfo_FilterGametype_Recursive(pGametype, pFeatures, 0, _MapInfo_globcount, pAbortOnGenerate);
 132         if not(_MapInfo_filtered)
 133         {
 134                 dprint("Autogenerated a .mapinfo, doing the rest later.\n");
 135                 return 0;
 136         }
 137         _MapInfo_filtered = strzone(_MapInfo_filtered);
 138         MapInfo_count = HugeSetOfIntegers_length(_MapInfo_filtered);
 139         //print("Filter ", ftos(pGametype), "/", ftos(pFeatures), " has ", ftos(MapInfo_count), "\n");
 140         // TODO clear cache
 141         return 1;
 142 }
 143
 144 // load info about the i-th map into the MapInfo_Map_* globals
 145 string MapInfo_BSPName_ByID(float i)
 146 {
 147         return _MapInfo_GlobItem(HugeSetOfIntegers_get(_MapInfo_filtered, i));
 148 }
 149
 150 string unquote(string s)
 151 {
 152         float i, j, l;
 153         l = strlen(s);
 154         j = -1;
 155         for(i = 0; i < l; ++i)
 156         {
 157                 string ch;
 158                 ch = substring(s, i, 1);
 159                 if(ch != " ") if(ch != "\"")
 160                 {
 161                         for(j = strlen(s) - i - 1; j > 0; --j)
 162                         {
 163                                 ch = substring(s, i+j, 1);
 164                                 if(ch != " ") if(ch != "\"")
 165                                         return substring(s, i, j+1);
 166                         }
 167                         return substring(s, i, 1);
 168                 }
 169         }
 170         return "";
 171 }
 172
 173 float MapInfo_Get_ByID(float i)
 174 {
 175         // TODO check cache
 176         if(MapInfo_Get_ByName(MapInfo_BSPName_ByID(i), 0, 0))
 177         {
 178                 // TODO save in cache
 179                 return 1;
 180         }
 181         return 0;
 182 }
 183
 184 float _MapInfo_Generate(string pFilename) // 0: failure, 1: ok ent, 2: ok bsp
 185 {
 186         string fn;
 187         float fh;
 188         string s, k, v;
 189         vector o;
 190         float i;
 191         float inWorldspawn;
 192         float r;
 193         float twoBaseModes;
 194
 195         vector mapMins, mapMaxs;
 196
 197         r = 1;
 198         fn = strcat("maps/", pFilename, ".ent");
 199         fh = fopen(fn, FILE_READ);
 200         if(fh < 0)
 201         {
 202                 r = 2;
 203                 fn = strcat("maps/", pFilename, ".bsp");
 204                 fh = fopen(fn, FILE_READ);
 205         }
 206         if(fh < 0)
 207                 return 0;
 208         print("Analyzing ", fn, " to generate initial mapinfo; please edit that file later\n");
 209
 210         inWorldspawn = 2;
 211         MapInfo_Map_supportedGametypes = 0;
 212
 213         for(;;)
 214         {
 215                 if not((s = fgets(fh)))
 216                         break;
 217                 if(inWorldspawn == 1)
 218                         if(startsWith(s, "}"))
 219                                 inWorldspawn = 0;
 220                 k = unquote(car(s));
 221                 v = unquote(cdr(s));
 222                 if(inWorldspawn)
 223                 {
 224                         if(k == "classname" && v == "worldspawn")
 225                                 inWorldspawn = 1;
 226                         else if(k == "author")
 227                                 MapInfo_Map_author = v;
 228                         else if(k == "message")
 229                         {
 230                                 i = strstrofs(v, " by ", 0);
 231                                 if(MapInfo_Map_author == "He-Who-Must-Not-Be-Named" && i >= 0)
 232                                 {
 233                                         MapInfo_Map_title = substring(v, 0, i);
 234                                         MapInfo_Map_author = substring(v, i + 4, strlen(v) - (i + 4));
 235                                 }
 236                                 else
 237                                         MapInfo_Map_title = v;
 238                         }
 239                 }
 240                 else
 241                 {
 242                         if(k == "origin")
 243                         {
 244                                 o = stov(strcat("'", v, "'"));
 245                                 mapMins_x = min(mapMins_x, o_x);
 246                                 mapMins_y = min(mapMins_y, o_y);
 247                                 mapMins_z = min(mapMins_z, o_z);
 248                                 mapMaxs_x = max(mapMaxs_x, o_x);
 249                                 mapMaxs_y = max(mapMaxs_y, o_y);
 250                                 mapMaxs_z = max(mapMaxs_z, o_z);
 251                         }
 252                         else if(k == "classname")
 253                         {
 254                                 if(v == "dom_controlpoint")
 255                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_DOMINATION;
 256                                 else if(v == "item_flag_team2")
 257                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_CTF;
 258                                 else if(v == "team_CTF_blueflag")
 259                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_CTF;
 260                                 else if(v == "runematch_spawn_point")
 261                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_RUNEMATCH;
 262                                 else if(v == "target_assault_roundend")
 263                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_ASSAULT;
 264                                 else if(v == "onslaught_generator")
 265                                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_ONSLAUGHT;
 266                                 else if(v == "info_player_team1")
 267                                         ++MapInfo_Map_spawnpoints;
 268                                 else if(v == "info_player_team2")
 269                                         ++MapInfo_Map_spawnpoints;
 270                                 else if(v == "info_player_start")
 271                                         ++MapInfo_Map_spawnpoints;
 272                                 else if(v == "info_player_deathmatch")
 273                                         ++MapInfo_Map_spawnpoints;
 274                                 else if(v == "weapon_nex")
 275                                         { }
 276                                 else if(v == "weapon_railgun")
 277                                         { }
 278                                 else if(startsWith(v, "weapon_"))
 279                                         MapInfo_Map_supportedFeatures |= MAPINFO_FEATURE_WEAPONS;
 280                         }
 281                 }
 282         }
 283         if(inWorldspawn)
 284         {
 285                 print(fn, " ended still in worldspawn, BUG\n");
 286                 return 0;
 287         }
 288         MapInfo_Map_diameter = vlen(mapMaxs - mapMins);
 289
 290         twoBaseModes = MapInfo_Map_supportedGametypes & (MAPINFO_TYPE_CTF | MAPINFO_TYPE_ASSAULT);
 291         if(twoBaseModes && (MapInfo_Map_supportedGametypes == twoBaseModes))
 292         {
 293                 // we have a CTF-only or Assault-only map. Don't add other modes then,
 294                 // as the map is too symmetric for them.
 295         }
 296         else
 297         {
 298                 MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_DEATHMATCH;      // DM always works
 299                 MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_LMS;             // LMS always works
 300
 301                 if(MapInfo_Map_spawnpoints >= 8  && MapInfo_Map_diameter > 4096)
 302                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_TEAM_DEATHMATCH;
 303                 if(                MapInfo_Map_diameter < 4096)
 304                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_ARENA;
 305                 if(MapInfo_Map_spawnpoints >= 12 && MapInfo_Map_diameter > 5120)
 306                         MapInfo_Map_supportedGametypes |= MAPINFO_TYPE_KEYHUNT;
 307         }
 308
 309         fclose(fh);
 310
 311         return r;
 312 }
 313
 314 void _MapInfo_Map_Reset()
 315 {
 316         MapInfo_Map_title = "Untitled1";
 317         MapInfo_Map_description = "Bleh.";
 318         MapInfo_Map_author = "He-Who-Must-Not-Be-Named";
 319         MapInfo_Map_supportedGametypes = 0;
 320         MapInfo_Map_supportedFeatures = 0;
 321         MapInfo_Map_diameter = 0;
 322         MapInfo_Map_spawnpoints = 0;
 323 }
 324
 325 void _MapInfo_Map_ApplyGametype(string s, float pWantedType, float pThisType)
 326 {
 327         MapInfo_Map_supportedGametypes |= pThisType;
 328         if(!(pThisType & pWantedType))
 329                 return;
 330
 331         cvar_set("fraglimit", car(s));
 332         s = cdr(s);
 333
 334         cvar_set("timelimit", car(s));
 335         s = cdr(s);
 336
 337         if(pWantedType == MAPINFO_TYPE_TEAM_DEATHMATCH)
 338         {
 339                 cvar_set("g_tdm_teams", car(s));
 340                 s = cdr(s);
 341         }
 342
 343         if(pWantedType == MAPINFO_TYPE_KEYHUNT)
 344         {
 345                 cvar_set("g_keyhunt_teams", car(s));
 346                 s = cdr(s);
 347         }
 348 }
 349
 350 float MapInfo_Type_FromString(string t)
 351 {
 352         if     (t == "dm")    return MAPINFO_TYPE_DEATHMATCH;
 353         else if(t == "tdm")   return MAPINFO_TYPE_TEAM_DEATHMATCH;
 354         else if(t == "dom")   return MAPINFO_TYPE_DOMINATION;
 355         else if(t == "ctf")   return MAPINFO_TYPE_CTF;
 356         else if(t == "rune")  return MAPINFO_TYPE_RUNEMATCH;
 357         else if(t == "lms")   return MAPINFO_TYPE_LMS;
 358         else if(t == "arena") return MAPINFO_TYPE_ARENA;
 359         else if(t == "kh")    return MAPINFO_TYPE_KEYHUNT;
 360         else if(t == "as")    return MAPINFO_TYPE_ASSAULT;
 361         else if(t == "ons")   return MAPINFO_TYPE_ONSLAUGHT;
 362         else if(t == "all")   return MAPINFO_TYPE_ALL;
 363         else                  return 0;
 364 }
 365
 366 // load info about a map by name into the MapInfo_Map_* globals
 367 float MapInfo_Get_ByName(string pFilename, float pAllowGenerate, float pGametypeToSet)
 368 {
 369         string fn;
 370         string s, t;
 371         float fh, fh2;
 372         float r, f;
 373
 374         r = 1;
 375
 376         MapInfo_Map_bspname = pFilename;
 377
 378         // default all generic fields so they have "good" values in case something fails
 379         fn = strcat("maps/", pFilename, ".mapinfo");
 380         fh = fopen(fn, FILE_READ);
 381         if(fh < 0)
 382         {
 383                 if(!pAllowGenerate)
 384                         return 0;
 385                 _MapInfo_Map_Reset();
 386                 r = _MapInfo_Generate(pFilename);
 387                 if(!r)
 388                         return 0;
 389                 fh = fopen(fn, FILE_WRITE);
 390                 fputs(fh, strcat("title ", MapInfo_Map_title, "\n"));
 391                 fputs(fh, strcat("description ", MapInfo_Map_description, "\n"));
 392                 fputs(fh, strcat("author ", MapInfo_Map_author, "\n"));
 393                 fputs(fh, strcat("_diameter ", ftos(MapInfo_Map_diameter), "\n"));
 394                 fputs(fh, strcat("_spawnpoints ", ftos(MapInfo_Map_spawnpoints), "\n"));
 395                 if(MapInfo_Map_supportedFeatures & MAPINFO_FEATURE_WEAPONS)       fputs(fh, "has weapons\n");
 396                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_DEATHMATCH)      fputs(fh, "type dm 30 20\n");
 397                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_TEAM_DEATHMATCH) fputs(fh, "type tdm 50 20 2\n");
 398                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_DOMINATION)      fputs(fh, "type dom 200 20\n");
 399                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_CTF)             fputs(fh, "type ctf 300 20\n");
 400                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_RUNEMATCH)       fputs(fh, "type rune 200 20\n");
 401                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_LMS)             fputs(fh, "type lms 9 20\n");
 402                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_ARENA)           fputs(fh, "type arena 10 20\n");
 403                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_KEYHUNT)         fputs(fh, "type kh 1000 20 3\n");
 404                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_ASSAULT)         fputs(fh, "type as 20\n");
 405                 if(MapInfo_Map_supportedGametypes & MAPINFO_TYPE_ONSLAUGHT)       fputs(fh, "type ons 20\n");
 406
 407                 fh2 = fopen(strcat("scripts/", pFilename, ".arena"), FILE_READ);
 408                 if(fh2 >= 0)
 409                 {
 410                         fclose(fh2);
 411                         fputs(fh, "settemp_for_type all sv_q3acompat_machineshotgunswap 1\n");
 412                 }
 413
 414                 fclose(fh);
 415                 r = 2;
 416                 // return r;
 417                 fh = fopen(fn, FILE_READ);
 418                 if(fh < 0)
 419                         error("... but I just wrote it!");
 420         }
 421
 422         _MapInfo_Map_Reset();
 423         for(;;)
 424         {
 425                 if not((s = fgets(fh)))
 426                         break;
 427                 t = car(s); s = cdr(s);
 428                 if     (t == "title")
 429                         MapInfo_Map_title = s;
 430                 else if(t == "description")
 431                         MapInfo_Map_description = s;
 432                 else if(t == "author")
 433                         MapInfo_Map_author = s;
 434                 else if(t == "_diameter")
 435                         MapInfo_Map_diameter = stof(s);
 436                 else if(t == "_spawnpoints")
 437                         MapInfo_Map_spawnpoints = stof(s);
 438                 else if(t == "has")
 439                 {
 440                         t = car(s); s = cdr(s);
 441                         if     (t == "weapons") MapInfo_Map_supportedFeatures |= MAPINFO_FEATURE_WEAPONS;
 442                         else
 443                                 dprint("Map ", pFilename, " supports unknown feature ", t, ", ignored\n");
 444                 }
 445                 else if(t == "type")
 446                 {
 447                         t = car(s); s = cdr(s);
 448                         f = MapInfo_Type_FromString(t);
 449                         if(f)
 450                                 _MapInfo_Map_ApplyGametype (s, pGametypeToSet, f);
 451                         else
 452                                 dprint("Map ", pFilename, " supports unknown game type ", t, ", ignored\n");
 453                 }
 454                 else if(t == "settemp_for_type")
 455                 {
 456                         t = car(s); s = cdr(s);
 457                         if((f = MapInfo_Type_FromString(t)))
 458                         {
 459                                 if(f & pGametypeToSet)
 460                                 {
 461                                         t = car(s); s = cdr(s);
 462                                         if(strstrofs(t, "\"", 0) >= 0)
 463                                                 print("Map ", pFilename, " contains a potentially harmful setting, ignored\n");
 464                                         else if(strstrofs(t, "\\", 0) >= 0)
 465                                                 print("Map ", pFilename, " contains a potentially harmful setting, ignored\n");
 466                                         else if(strstrofs(t, ";", 0) >= 0)
 467                                                 print("Map ", pFilename, " contains a potentially harmful setting, ignored\n");
 468                                         else if(strstrofs(s, "\"", 0) >= 0)
 469                                                 print("Map ", pFilename, " contains a potentially harmful setting, ignored\n");
 470                                         else if(strstrofs(s, "\\", 0) >= 0)
 471                                                 print("Map ", pFilename, " contains a potentially harmful setting, ignored\n");
 472                                         else if(strstrofs(s, ";", 0) >= 0)
 473                                                 print("Map ", pFilename, " contains a potentially harmful setting, ignored\n");
 474                                         else
 475                                         {
 476                                                 dprint("Applying temporary setting ", t, " := ", s, "\n");
 477                                                 cvar_settemp(t, s);
 478                                         }
 479                                 }
 480                         }
 481                         else
 482                         {
 483                                 dprint("Map ", pFilename, " has a setting for unknown game type ", t, ", ignored\n");
 484                         }
 485                 }
 486                 else
 487                         dprint("Map ", pFilename, " provides unknown info item ", t, ", ignored\n");
 488         }
 489         fclose(fh);
 490         if(pGametypeToSet)
 491                 if(!(MapInfo_Map_supportedGametypes & pGametypeToSet))
 492                         error("Can't select the requested game type. Bailing out.");
 493         if(MapInfo_Map_supportedGametypes != 0)
 494                 return r;
 495         dprint("Map ", pFilename, " supports no game types, ignored\n");
 496         return 0;
 497 }
 498
 499 string _MapInfo_FindName_match;
 500 float MapInfo_FindName(string s)
 501 {
 502         // if there is exactly one map of prefix s, return it
 503         // if not, return the null string
 504         // note that DP sorts glob results... so I can use a binary search
 505         float l, r, m, cmp;
 506         l = 0;
 507         r = MapInfo_count;
 508         // invariants: r is behind s, l-1 is equal or before
 509         while(l != r)
 510         {
 511                 m = floor((l + r) / 2);
 512                 _MapInfo_FindName_match = _MapInfo_GlobItem(HugeSetOfIntegers_get(_MapInfo_filtered, m));
 513                 cmp = strcasecmp(_MapInfo_FindName_match, s);
 514                 if(cmp == 0)
 515                         return m; // found and good
 516                 if(cmp < 0)
 517                         l = m + 1; // l-1 is before s
 518                 else
 519                         r = m; // behind s
 520         }
 521         _MapInfo_FindName_match = _MapInfo_GlobItem(HugeSetOfIntegers_get(_MapInfo_filtered, l));
 522         // r == l, so: l is behind s, l-1 is before
 523         // SO: if there is any, l is the one with the right prefix
 524         //     and l+1 may be one too
 525         if(l == MapInfo_count)
 526         {
 527                 _MapInfo_FindName_match = string_null;
 528                 return -1; // no _MapInfo_FindName_match, behind last item
 529         }
 530         if(!startsWith(_MapInfo_FindName_match, s))
 531         {
 532                 _MapInfo_FindName_match = string_null;
 533                 return -1; // wrong prefix
 534         }
 535         if(l == MapInfo_count - 1)
 536                 return l; // last one, nothing can follow => unique
 537         if(startsWith(_MapInfo_GlobItem(HugeSetOfIntegers_get(_MapInfo_filtered, l + 1)), s))
 538         {
 539                 _MapInfo_FindName_match = string_null;
 540                 return -1; // ambigous _MapInfo_FindName_match
 541         }
 542         return l;
 543 }
 544
 545 string MapInfo_FixName(string s)
 546 {
 547         MapInfo_FindName(s);
 548         return _MapInfo_FindName_match;
 549 }
 550
 551 float MapInfo_CurrentFeatures()
 552 {
 553         float req;
 554         req = 0;
 555         if(!(cvar("g_instagib") || cvar("g_minstagib") || cvar("g_nixnex") || cvar("g_rocketarena")))
 556                 req |= MAPINFO_FEATURE_WEAPONS;
 557         return req;
 558 }
 559
 560 float MapInfo_CurrentGametype()
 561 {
 562         if(cvar("g_domination"))
 563                 return MAPINFO_TYPE_DOMINATION;
 564         else if(cvar("g_ctf"))
 565                 return MAPINFO_TYPE_CTF;
 566         else if(cvar("g_runematch"))
 567                 return MAPINFO_TYPE_RUNEMATCH;
 568         else if(cvar("g_tdm"))
 569                 return MAPINFO_TYPE_TEAM_DEATHMATCH;
 570         else if(cvar("g_assault"))
 571                 return MAPINFO_TYPE_ASSAULT;
 572         else if(cvar("g_lms"))
 573                 return MAPINFO_TYPE_LMS;
 574         else if(cvar("g_arena"))
 575                 return MAPINFO_TYPE_ARENA;
 576         else if(cvar("g_keyhunt"))
 577                 return MAPINFO_TYPE_KEYHUNT;
 578         else if(cvar("g_onslaught"))
 579                 return MAPINFO_TYPE_ONSLAUGHT;
 580         else
 581                 return MAPINFO_TYPE_DEATHMATCH;
 582 }
 583
 584 float MapInfo_CheckMap(string s) // returns 0 if the map can't be played with the current settings, 1 otherwise
 585 {
 586         if(!MapInfo_Get_ByName(s, 1, 0))
 587                 return 0;
 588         if((MapInfo_Map_supportedGametypes & MapInfo_CurrentGametype()) == 0)
 589                 return 0;
 590         if((MapInfo_Map_supportedFeatures & MapInfo_CurrentFeatures()) != MapInfo_CurrentFeatures())
 591                 return 0;
 592         return 1;
 593 }
 594
 595 void MapInfo_SwitchGameType(float t)
 596 {
 597         cvar_set("gamecfg",      "0");
 598         cvar_set("g_dm",         (t == MAPINFO_TYPE_DEATHMATCH)      ? "1" : "0");
 599         cvar_set("g_tdm",        (t == MAPINFO_TYPE_TEAM_DEATHMATCH) ? "1" : "0");
 600         cvar_set("g_domination", (t == MAPINFO_TYPE_DOMINATION)      ? "1" : "0");
 601         cvar_set("g_ctf",        (t == MAPINFO_TYPE_CTF)             ? "1" : "0");
 602         cvar_set("g_runematch",  (t == MAPINFO_TYPE_RUNEMATCH)       ? "1" : "0");
 603         cvar_set("g_lms",        (t == MAPINFO_TYPE_LMS)             ? "1" : "0");
 604         cvar_set("g_arena",      (t == MAPINFO_TYPE_ARENA)           ? "1" : "0");
 605         cvar_set("g_keyhunt",    (t == MAPINFO_TYPE_KEYHUNT)         ? "1" : "0");
 606         cvar_set("g_assault",    (t == MAPINFO_TYPE_ASSAULT)         ? "1" : "0");
 607         cvar_set("g_onslaught",  (t == MAPINFO_TYPE_ONSLAUGHT)       ? "1" : "0");
 608 }
 609
 610 void MapInfo_LoadMap(string s)
 611 {
 612         MapInfo_Map_supportedGametypes = 0;
 613         if(!MapInfo_CheckMap(s))
 614         {
 615                 print("EMERGENCY: can't play the selected map in the given game mode. Falling back to DM.\n");
 616                 MapInfo_SwitchGameType(MAPINFO_TYPE_DEATHMATCH);
 617         }
 618         localcmd(strcat("\nsettemp_restore\nchangelevel ", s, "\n"));
 619 }
 620
 621 string MapInfo_ListAllowedMaps()
 622 {
 623         string out;
 624         float i;
 625
 626         // to make absolutely sure:
 627         MapInfo_Enumerate();
 628         MapInfo_FilterGametype(MapInfo_CurrentGametype(), MapInfo_CurrentFeatures(), 0);
 629
 630         out = "";
 631         for(i = 0; i < MapInfo_count; ++i)
 632                 out = strcat(out, " ", _MapInfo_GlobItem(HugeSetOfIntegers_get(_MapInfo_filtered, i)));
 633         return substring(out, 1, strlen(out) - 1);
 634 }
 635
 636 void MapInfo_LoadMapSettings(string s) // to be called from worldspawn
 637 {
 638         float t;
 639         if(!MapInfo_CheckMap(s))
 640         {
 641                 if(MapInfo_Map_supportedGametypes <= 0)
 642                         error("Mapinfo system is not functional at all. BAILED OUT.\n");
 643
 644                 t = 1;
 645                 while(!(MapInfo_Map_supportedGametypes & 1))
 646                 {
 647                         t *= 2;
 648                         MapInfo_Map_supportedGametypes = floor(MapInfo_Map_supportedGametypes / 2);
 649                 }
 650                 // t is now a supported mode!
 651                 print("EMERGENCY: can't play the selected map in the given game mode. Falling back to a supported mode.\n");
 652                 print(ftos(t), "\n");
 653                 MapInfo_SwitchGameType(t);
 654                 print(ftos(MapInfo_CurrentGametype()), "\n");
 655         }
 656         print(ftos(MapInfo_CurrentGametype()), "\n");
 657         cvar_settemp_restore();
 658         MapInfo_Get_ByName(s, 1, MapInfo_CurrentGametype());
 659 }