prvm_edict.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // AK new vm
  21
  22 #include "quakedef.h"
  23 #include "progsvm.h"
  24
  25 prvm_prog_t *prog;
  26
  27 static prvm_prog_t prog_list[PRVM_MAXPROGS];
  28
  29 int             prvm_type_size[8] = {1,sizeof(string_t)/4,1,3,1,1,sizeof(func_t)/4,sizeof(void *)/4};
  30
  31 ddef_t *PRVM_ED_FieldAtOfs(int ofs);
  32 qboolean PRVM_ED_ParseEpair(prvm_edict_t *ent, ddef_t *key, const char *s, qboolean parsebackslash);
  33
  34 cvar_t prvm_language = {0, "prvm_language", "", "when set, loads progs.dat.LANGUAGENAME.po for string translations; when set to dump, progs.dat.dump.po is written from the strings in the progs"};
  35 // LordHavoc: prints every opcode as it executes - warning: this is significant spew
  36 cvar_t prvm_traceqc = {0, "prvm_traceqc", "0", "prints every QuakeC statement as it is executed (only for really thorough debugging!)"};
  37 // LordHavoc: counts usage of each QuakeC statement
  38 cvar_t prvm_statementprofiling = {0, "prvm_statementprofiling", "0", "counts how many times each QuakeC statement has been executed, these counts are displayed in prvm_printfunction output (if enabled)"};
  39 cvar_t prvm_backtraceforwarnings = {0, "prvm_backtraceforwarnings", "0", "print a backtrace for warnings too"};
  40 cvar_t prvm_leaktest = {0, "prvm_leaktest", "0", "try to detect memory leaks in strings or entities"};
  41 cvar_t prvm_leaktest_ignore_classnames = {0, "prvm_leaktest_ignore_classnames", "", "classnames of entities to NOT leak check because they are found by find(world, classname, ...) but are actually spawned by QC code (NOT map entities)"};
  42 cvar_t prvm_errordump = {0, "prvm_errordump", "0", "write a savegame on crash to crash-server.dmp"};
  43 cvar_t prvm_reuseedicts_startuptime = {0, "prvm_reuseedicts_startuptime", "2", "allows immediate re-use of freed entity slots during start of new level (value in seconds)"};
  44 cvar_t prvm_reuseedicts_neverinsameframe = {0, "prvm_reuseedicts_neverinsameframe", "1", "never allows re-use of freed entity slots during same frame"};
  45
  46 qboolean prvm_runawaycheck = true;
  47
  48 // LordHavoc: optional runtime bounds checking (speed drain, but worth it for security, on by default - breaks most QCCX features (used by CRMod and others))
  49 // enables detection of out of bounds memory access in the QuakeC code being run (in other words, prevents really exceedingly bad QuakeC code from doing nasty things to your computer)
  50 qboolean prvm_boundscheck = true;
  51
  52 extern sizebuf_t vm_tempstringsbuf;
  53
  54 //============================================================================
  55 // mempool handling
  56
  57 /*
  58 ===============
  59 PRVM_MEM_Alloc
  60 ===============
  61 */
  62 void PRVM_MEM_Alloc(void)
  63 {
  64         int i;
  65
  66         // reserve space for the null entity aka world
  67         // check bound of max_edicts
  68         prog->max_edicts = bound(1 + prog->reserved_edicts, prog->max_edicts, prog->limit_edicts);
  69         prog->num_edicts = bound(1 + prog->reserved_edicts, prog->num_edicts, prog->max_edicts);
  70
  71         // edictprivate_size has to be min as big prvm_edict_private_t
  72         prog->edictprivate_size = max(prog->edictprivate_size,(int)sizeof(prvm_edict_private_t));
  73
  74         // alloc edicts
  75         prog->edicts = (prvm_edict_t *)Mem_Alloc(prog->progs_mempool,prog->limit_edicts * sizeof(prvm_edict_t));
  76
  77         // alloc edict private space
  78         prog->edictprivate = Mem_Alloc(prog->progs_mempool, prog->max_edicts * prog->edictprivate_size);
  79
  80         // alloc edict fields
  81         prog->entityfieldsarea = prog->entityfields * prog->max_edicts;
  82         prog->edictsfields = (vec_t *)Mem_Alloc(prog->progs_mempool, prog->entityfieldsarea * sizeof(vec_t));
  83
  84         // set edict pointers
  85         for(i = 0; i < prog->max_edicts; i++)
  86         {
  87                 prog->edicts[i].priv.required = (prvm_edict_private_t *)((unsigned char  *)prog->edictprivate + i * prog->edictprivate_size);
  88                 prog->edicts[i].fields.vp = prog->edictsfields + i * prog->entityfields;
  89         }
  90 }
  91
  92 /*
  93 ===============
  94 PRVM_MEM_IncreaseEdicts
  95 ===============
  96 */
  97 void PRVM_MEM_IncreaseEdicts(void)
  98 {
  99         int             i;
 100
 101         if(prog->max_edicts >= prog->limit_edicts)
 102                 return;
 103
 104         PRVM_GCALL(begin_increase_edicts)();
 105
 106         // increase edicts
 107         prog->max_edicts = min(prog->max_edicts + 256, prog->limit_edicts);
 108
 109         prog->entityfieldsarea = prog->entityfields * prog->max_edicts;
 110         prog->edictsfields = (vec_t*)Mem_Realloc(prog->progs_mempool, (void *)prog->edictsfields, prog->entityfieldsarea * sizeof(vec_t));
 111         prog->edictprivate = (void *)Mem_Realloc(prog->progs_mempool, (void *)prog->edictprivate, prog->max_edicts * prog->edictprivate_size);
 112
 113         //set e and v pointers
 114         for(i = 0; i < prog->max_edicts; i++)
 115         {
 116                 prog->edicts[i].priv.required  = (prvm_edict_private_t *)((unsigned char  *)prog->edictprivate + i * prog->edictprivate_size);
 117                 prog->edicts[i].fields.vp = prog->edictsfields + i * prog->entityfields;
 118         }
 119
 120         PRVM_GCALL(end_increase_edicts)();
 121 }
 122
 123 //============================================================================
 124 // normal prvm
 125
 126 int PRVM_ED_FindFieldOffset(const char *field)
 127 {
 128         ddef_t *d;
 129         d = PRVM_ED_FindField(field);
 130         if (!d)
 131                 return -1;
 132         return d->ofs;
 133 }
 134
 135 int PRVM_ED_FindGlobalOffset(const char *global)
 136 {
 137         ddef_t *d;
 138         d = PRVM_ED_FindGlobal(global);
 139         if (!d)
 140                 return -1;
 141         return d->ofs;
 142 }
 143
 144 func_t PRVM_ED_FindFunctionOffset(const char *function)
 145 {
 146         mfunction_t *f;
 147         f = PRVM_ED_FindFunction(function);
 148         if (!f)
 149                 return 0;
 150         return (func_t)(f - prog->functions);
 151 }
 152
 153 qboolean PRVM_ProgLoaded(int prognr)
 154 {
 155         if(prognr < 0 || prognr >= PRVM_MAXPROGS)
 156                 return FALSE;
 157
 158         return (prog_list[prognr].loaded ? TRUE : FALSE);
 159 }
 160
 161 /*
 162 =================
 163 PRVM_SetProgFromString
 164 =================
 165 */
 166 // perhaps add a return value when the str doesnt exist
 167 qboolean PRVM_SetProgFromString(const char *str)
 168 {
 169         int i = 0;
 170         for(; i < PRVM_MAXPROGS ; i++)
 171                 if(prog_list[i].name && !strcmp(prog_list[i].name,str))
 172                 {
 173                         if(prog_list[i].loaded)
 174                         {
 175                                 prog = &prog_list[i];
 176                                 return TRUE;
 177                         }
 178                         else
 179                         {
 180                                 Con_Printf("%s not loaded !\n",PRVM_NAME);
 181                                 return FALSE;
 182                         }
 183                 }
 184
 185         Con_Printf("Invalid program name %s !\n", str);
 186         return FALSE;
 187 }
 188
 189 /*
 190 =================
 191 PRVM_SetProg
 192 =================
 193 */
 194 void PRVM_SetProg(int prognr)
 195 {
 196         if(0 <= prognr && prognr < PRVM_MAXPROGS)
 197         {
 198                 if(prog_list[prognr].loaded)
 199                         prog = &prog_list[prognr];
 200                 else
 201                         PRVM_ERROR("%i not loaded !", prognr);
 202                 return;
 203         }
 204         PRVM_ERROR("Invalid program number %i", prognr);
 205 }
 206
 207 /*
 208 =================
 209 PRVM_ED_ClearEdict
 210
 211 Sets everything to NULL
 212 =================
 213 */
 214 void PRVM_ED_ClearEdict (prvm_edict_t *e)
 215 {
 216         memset (e->fields.vp, 0, prog->progs->entityfields * 4);
 217         e->priv.required->free = false;
 218
 219         // AK: Let the init_edict function determine if something needs to be initialized
 220         PRVM_GCALL(init_edict)(e);
 221 }
 222
 223 const char *PRVM_AllocationOrigin(void)
 224 {
 225         char *buf = NULL;
 226         if(prog->leaktest_active)
 227         if(prog->depth > 0) // actually in QC code and not just parsing the entities block of a map/savegame
 228         {
 229                 buf = (char *)PRVM_Alloc(128);
 230                 PRVM_ShortStackTrace(buf, 128);
 231         }
 232         return buf;
 233 }
 234
 235 /*
 236 =================
 237 PRVM_ED_CanAlloc
 238
 239 Returns if this particular edict could get allocated by PRVM_ED_Alloc
 240 =================
 241 */
 242 qboolean PRVM_ED_CanAlloc(prvm_edict_t *e)
 243 {
 244         if(!e->priv.required->free)
 245                 return false;
 246         if(realtime <= e->priv.required->freetime && prvm_reuseedicts_neverinsameframe.integer)
 247                 return false; // never allow reuse in same frame (causes networking trouble)
 248         if(e->priv.required->freetime < prog->starttime + prvm_reuseedicts_startuptime.value)
 249                 return true;
 250         if(realtime > e->priv.required->freetime + 1)
 251                 return true;
 252         return false; // entity slot still blocked because the entity was freed less than one second ago
 253 }
 254
 255 /*
 256 =================
 257 PRVM_ED_Alloc
 258
 259 Either finds a free edict, or allocates a new one.
 260 Try to avoid reusing an entity that was recently freed, because it
 261 can cause the client to think the entity morphed into something else
 262 instead of being removed and recreated, which can cause interpolated
 263 angles and bad trails.
 264 =================
 265 */
 266 prvm_edict_t *PRVM_ED_Alloc (void)
 267 {
 268         int                     i;
 269         prvm_edict_t            *e;
 270
 271         // the client qc dont need maxclients
 272         // thus it doesnt need to use svs.maxclients
 273         // AK:  changed i=svs.maxclients+1
 274         // AK:  changed so the edict 0 wont spawn -> used as reserved/world entity
 275         //              although the menu/client has no world
 276         for (i = prog->reserved_edicts + 1;i < prog->num_edicts;i++)
 277         {
 278                 e = PRVM_EDICT_NUM(i);
 279                 if(PRVM_ED_CanAlloc(e))
 280                 {
 281                         PRVM_ED_ClearEdict (e);
 282                         e->priv.required->allocation_origin = PRVM_AllocationOrigin();
 283                         return e;
 284                 }
 285         }
 286
 287         if (i == prog->limit_edicts)
 288                 PRVM_ERROR ("%s: PRVM_ED_Alloc: no free edicts",PRVM_NAME);
 289
 290         prog->num_edicts++;
 291         if (prog->num_edicts >= prog->max_edicts)
 292                 PRVM_MEM_IncreaseEdicts();
 293
 294         e = PRVM_EDICT_NUM(i);
 295         PRVM_ED_ClearEdict (e);
 296
 297         e->priv.required->allocation_origin = PRVM_AllocationOrigin();
 298
 299         return e;
 300 }
 301
 302 /*
 303 =================
 304 PRVM_ED_Free
 305
 306 Marks the edict as free
 307 FIXME: walk all entities and NULL out references to this entity
 308 =================
 309 */
 310 void PRVM_ED_Free (prvm_edict_t *ed)
 311 {
 312         // dont delete the null entity (world) or reserved edicts
 313         if(PRVM_NUM_FOR_EDICT(ed) <= prog->reserved_edicts )
 314                 return;
 315
 316         PRVM_GCALL(free_edict)(ed);
 317
 318         ed->priv.required->free = true;
 319         ed->priv.required->freetime = realtime;
 320         if(ed->priv.required->allocation_origin)
 321         {
 322                 PRVM_Free((char *)ed->priv.required->allocation_origin);
 323                 ed->priv.required->allocation_origin = NULL;
 324         }
 325 }
 326
 327 //===========================================================================
 328
 329 /*
 330 ============
 331 PRVM_ED_GlobalAtOfs
 332 ============
 333 */
 334 ddef_t *PRVM_ED_GlobalAtOfs (int ofs)
 335 {
 336         ddef_t          *def;
 337         int                     i;
 338
 339         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
 340         {
 341                 def = &prog->globaldefs[i];
 342                 if (def->ofs == ofs)
 343                         return def;
 344         }
 345         return NULL;
 346 }
 347
 348 /*
 349 ============
 350 PRVM_ED_FieldAtOfs
 351 ============
 352 */
 353 ddef_t *PRVM_ED_FieldAtOfs (int ofs)
 354 {
 355         ddef_t          *def;
 356         int                     i;
 357
 358         for (i=0 ; i<prog->progs->numfielddefs ; i++)
 359         {
 360                 def = &prog->fielddefs[i];
 361                 if (def->ofs == ofs)
 362                         return def;
 363         }
 364         return NULL;
 365 }
 366
 367 /*
 368 ============
 369 PRVM_ED_FindField
 370 ============
 371 */
 372 ddef_t *PRVM_ED_FindField (const char *name)
 373 {
 374         ddef_t *def;
 375         int i;
 376
 377         for (i=0 ; i<prog->progs->numfielddefs ; i++)
 378         {
 379                 def = &prog->fielddefs[i];
 380                 if (!strcmp(PRVM_GetString(def->s_name), name))
 381                         return def;
 382         }
 383         return NULL;
 384 }
 385
 386 /*
 387 ============
 388 PRVM_ED_FindGlobal
 389 ============
 390 */
 391 ddef_t *PRVM_ED_FindGlobal (const char *name)
 392 {
 393         ddef_t *def;
 394         int i;
 395
 396         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
 397         {
 398                 def = &prog->globaldefs[i];
 399                 if (!strcmp(PRVM_GetString(def->s_name), name))
 400                         return def;
 401         }
 402         return NULL;
 403 }
 404
 405
 406 /*
 407 ============
 408 PRVM_ED_FindFunction
 409 ============
 410 */
 411 mfunction_t *PRVM_ED_FindFunction (const char *name)
 412 {
 413         mfunction_t             *func;
 414         int                             i;
 415
 416         for (i=0 ; i<prog->progs->numfunctions ; i++)
 417         {
 418                 func = &prog->functions[i];
 419                 if (!strcmp(PRVM_GetString(func->s_name), name))
 420                         return func;
 421         }
 422         return NULL;
 423 }
 424
 425
 426 /*
 427 ============
 428 PRVM_ValueString
 429
 430 Returns a string describing *data in a type specific manner
 431 =============
 432 */
 433 char *PRVM_ValueString (etype_t type, prvm_eval_t *val)
 434 {
 435         static char line[MAX_INPUTLINE];
 436         ddef_t *def;
 437         mfunction_t *f;
 438         int n;
 439
 440         type = (etype_t)((int) type & ~DEF_SAVEGLOBAL);
 441
 442         switch (type)
 443         {
 444         case ev_string:
 445                 strlcpy (line, PRVM_GetString (val->string), sizeof (line));
 446                 break;
 447         case ev_entity:
 448                 n = val->edict;
 449                 if (n < 0 || n >= prog->max_edicts)
 450                         dpsnprintf (line, sizeof(line), "entity %i (invalid!)", n);
 451                 else
 452                         dpsnprintf (line, sizeof(line), "entity %i", n);
 453                 break;
 454         case ev_function:
 455                 f = prog->functions + val->function;
 456                 dpsnprintf (line, sizeof(line), "%s()", PRVM_GetString(f->s_name));
 457                 break;
 458         case ev_field:
 459                 def = PRVM_ED_FieldAtOfs ( val->_int );
 460                 dpsnprintf (line, sizeof(line), ".%s", PRVM_GetString(def->s_name));
 461                 break;
 462         case ev_void:
 463                 dpsnprintf (line, sizeof(line), "void");
 464                 break;
 465         case ev_float:
 466                 // LordHavoc: changed from %5.1f to %10.4f
 467                 dpsnprintf (line, sizeof(line), "%10.4f", val->_float);
 468                 break;
 469         case ev_vector:
 470                 // LordHavoc: changed from %5.1f to %10.4f
 471                 dpsnprintf (line, sizeof(line), "'%10.4f %10.4f %10.4f'", val->vector[0], val->vector[1], val->vector[2]);
 472                 break;
 473         case ev_pointer:
 474                 dpsnprintf (line, sizeof(line), "pointer");
 475                 break;
 476         default:
 477                 dpsnprintf (line, sizeof(line), "bad type %i", (int) type);
 478                 break;
 479         }
 480
 481         return line;
 482 }
 483
 484 /*
 485 ============
 486 PRVM_UglyValueString
 487
 488 Returns a string describing *data in a type specific manner
 489 Easier to parse than PR_ValueString
 490 =============
 491 */
 492 char *PRVM_UglyValueString (etype_t type, prvm_eval_t *val)
 493 {
 494         static char line[MAX_INPUTLINE];
 495         int i;
 496         const char *s;
 497         ddef_t *def;
 498         mfunction_t *f;
 499
 500         type = (etype_t)((int)type & ~DEF_SAVEGLOBAL);
 501
 502         switch (type)
 503         {
 504         case ev_string:
 505                 // Parse the string a bit to turn special characters
 506                 // (like newline, specifically) into escape codes,
 507                 // this fixes saving games from various mods
 508                 s = PRVM_GetString (val->string);
 509                 for (i = 0;i < (int)sizeof(line) - 2 && *s;)
 510                 {
 511                         if (*s == '\n')
 512                         {
 513                                 line[i++] = '\\';
 514                                 line[i++] = 'n';
 515                         }
 516                         else if (*s == '\r')
 517                         {
 518                                 line[i++] = '\\';
 519                                 line[i++] = 'r';
 520                         }
 521                         else if (*s == '\\')
 522                         {
 523                                 line[i++] = '\\';
 524                                 line[i++] = '\\';
 525                         }
 526                         else if (*s == '"')
 527                         {
 528                                 line[i++] = '\\';
 529                                 line[i++] = '"';
 530                         }
 531                         else
 532                                 line[i++] = *s;
 533                         s++;
 534                 }
 535                 line[i] = '\0';
 536                 break;
 537         case ev_entity:
 538                 dpsnprintf (line, sizeof (line), "%i", PRVM_NUM_FOR_EDICT(PRVM_PROG_TO_EDICT(val->edict)));
 539                 break;
 540         case ev_function:
 541                 f = prog->functions + val->function;
 542                 strlcpy (line, PRVM_GetString (f->s_name), sizeof (line));
 543                 break;
 544         case ev_field:
 545                 def = PRVM_ED_FieldAtOfs ( val->_int );
 546                 dpsnprintf (line, sizeof (line), ".%s", PRVM_GetString(def->s_name));
 547                 break;
 548         case ev_void:
 549                 dpsnprintf (line, sizeof (line), "void");
 550                 break;
 551         case ev_float:
 552                 dpsnprintf (line, sizeof (line), "%f", val->_float);
 553                 break;
 554         case ev_vector:
 555                 dpsnprintf (line, sizeof (line), "%f %f %f", val->vector[0], val->vector[1], val->vector[2]);
 556                 break;
 557         default:
 558                 dpsnprintf (line, sizeof (line), "bad type %i", type);
 559                 break;
 560         }
 561
 562         return line;
 563 }
 564
 565 /*
 566 ============
 567 PRVM_GlobalString
 568
 569 Returns a string with a description and the contents of a global,
 570 padded to 20 field width
 571 ============
 572 */
 573 char *PRVM_GlobalString (int ofs)
 574 {
 575         char    *s;
 576         //size_t        i;
 577         ddef_t  *def;
 578         void    *val;
 579         static char     line[128];
 580
 581         val = (void *)&prog->globals.generic[ofs];
 582         def = PRVM_ED_GlobalAtOfs(ofs);
 583         if (!def)
 584                 dpsnprintf (line, sizeof(line), "GLOBAL%i", ofs);
 585         else
 586         {
 587                 s = PRVM_ValueString ((etype_t)def->type, (prvm_eval_t *)val);
 588                 dpsnprintf (line, sizeof(line), "%s (=%s)", PRVM_GetString(def->s_name), s);
 589         }
 590
 591         //i = strlen(line);
 592         //for ( ; i<20 ; i++)
 593         //      strcat (line," ");
 594         //strcat (line," ");
 595
 596         return line;
 597 }
 598
 599 char *PRVM_GlobalStringNoContents (int ofs)
 600 {
 601         //size_t        i;
 602         ddef_t  *def;
 603         static char     line[128];
 604
 605         def = PRVM_ED_GlobalAtOfs(ofs);
 606         if (!def)
 607                 dpsnprintf (line, sizeof(line), "GLOBAL%i", ofs);
 608         else
 609                 dpsnprintf (line, sizeof(line), "%s", PRVM_GetString(def->s_name));
 610
 611         //i = strlen(line);
 612         //for ( ; i<20 ; i++)
 613         //      strcat (line," ");
 614         //strcat (line," ");
 615
 616         return line;
 617 }
 618
 619
 620 /*
 621 =============
 622 PRVM_ED_Print
 623
 624 For debugging
 625 =============
 626 */
 627 // LordHavoc: optimized this to print out much more quickly (tempstring)
 628 // LordHavoc: changed to print out every 4096 characters (incase there are a lot of fields to print)
 629 void PRVM_ED_Print(prvm_edict_t *ed, const char *wildcard_fieldname)
 630 {
 631         size_t  l;
 632         ddef_t  *d;
 633         int             *v;
 634         int             i, j;
 635         const char      *name;
 636         int             type;
 637         char    tempstring[MAX_INPUTLINE], tempstring2[260]; // temporary string buffers
 638
 639         if (ed->priv.required->free)
 640         {
 641                 Con_Printf("%s: FREE\n",PRVM_NAME);
 642                 return;
 643         }
 644
 645         tempstring[0] = 0;
 646         dpsnprintf(tempstring, sizeof(tempstring), "\n%s EDICT %i:\n", PRVM_NAME, PRVM_NUM_FOR_EDICT(ed));
 647         for (i=1 ; i<prog->progs->numfielddefs ; i++)
 648         {
 649                 d = &prog->fielddefs[i];
 650                 name = PRVM_GetString(d->s_name);
 651                 if (name[strlen(name)-2] == '_')
 652                         continue;       // skip _x, _y, _z vars
 653
 654                 // Check Field Name Wildcard
 655                 if(wildcard_fieldname)
 656                         if( !matchpattern(name, wildcard_fieldname, 1) )
 657                                 // Didn't match; skip
 658                                 continue;
 659
 660                 v = (int *)(ed->fields.vp + d->ofs);
 661
 662         // if the value is still all 0, skip the field
 663                 type = d->type & ~DEF_SAVEGLOBAL;
 664
 665                 for (j=0 ; j<prvm_type_size[type] ; j++)
 666                         if (v[j])
 667                                 break;
 668                 if (j == prvm_type_size[type])
 669                         continue;
 670
 671                 if (strlen(name) > sizeof(tempstring2)-4)
 672                 {
 673                         memcpy (tempstring2, name, sizeof(tempstring2)-4);
 674                         tempstring2[sizeof(tempstring2)-4] = tempstring2[sizeof(tempstring2)-3] = tempstring2[sizeof(tempstring2)-2] = '.';
 675                         tempstring2[sizeof(tempstring2)-1] = 0;
 676                         name = tempstring2;
 677                 }
 678                 strlcat(tempstring, name, sizeof(tempstring));
 679                 for (l = strlen(name);l < 14;l++)
 680                         strlcat(tempstring, " ", sizeof(tempstring));
 681                 strlcat(tempstring, " ", sizeof(tempstring));
 682
 683                 name = PRVM_ValueString((etype_t)d->type, (prvm_eval_t *)v);
 684                 if (strlen(name) > sizeof(tempstring2)-4)
 685                 {
 686                         memcpy (tempstring2, name, sizeof(tempstring2)-4);
 687                         tempstring2[sizeof(tempstring2)-4] = tempstring2[sizeof(tempstring2)-3] = tempstring2[sizeof(tempstring2)-2] = '.';
 688                         tempstring2[sizeof(tempstring2)-1] = 0;
 689                         name = tempstring2;
 690                 }
 691                 strlcat(tempstring, name, sizeof(tempstring));
 692                 strlcat(tempstring, "\n", sizeof(tempstring));
 693                 if (strlen(tempstring) >= sizeof(tempstring)/2)
 694                 {
 695                         Con_Print(tempstring);
 696                         tempstring[0] = 0;
 697                 }
 698         }
 699         if (tempstring[0])
 700                 Con_Print(tempstring);
 701 }
 702
 703 /*
 704 =============
 705 PRVM_ED_Write
 706
 707 For savegames
 708 =============
 709 */
 710 extern cvar_t developer_entityparsing;
 711 void PRVM_ED_Write (qfile_t *f, prvm_edict_t *ed)
 712 {
 713         ddef_t  *d;
 714         int             *v;
 715         int             i, j;
 716         const char      *name;
 717         int             type;
 718
 719         FS_Print(f, "{\n");
 720
 721         if (ed->priv.required->free)
 722         {
 723                 FS_Print(f, "}\n");
 724                 return;
 725         }
 726
 727         for (i=1 ; i<prog->progs->numfielddefs ; i++)
 728         {
 729                 d = &prog->fielddefs[i];
 730                 name = PRVM_GetString(d->s_name);
 731
 732                 if(developer_entityparsing.integer)
 733                         Con_Printf("PRVM_ED_Write: at entity %d field %s\n", PRVM_NUM_FOR_EDICT(ed), name);
 734
 735                 if (name[strlen(name)-2] == '_')
 736                         continue;       // skip _x, _y, _z vars
 737
 738                 v = (int *)(ed->fields.vp + d->ofs);
 739
 740         // if the value is still all 0, skip the field
 741                 type = d->type & ~DEF_SAVEGLOBAL;
 742                 for (j=0 ; j<prvm_type_size[type] ; j++)
 743                         if (v[j])
 744                                 break;
 745                 if (j == prvm_type_size[type])
 746                         continue;
 747
 748                 FS_Printf(f,"\"%s\" ",name);
 749                 prog->statestring = va("PRVM_ED_Write, ent=%d, name=%s", i, name);
 750                 FS_Printf(f,"\"%s\"\n", PRVM_UglyValueString((etype_t)d->type, (prvm_eval_t *)v));
 751                 prog->statestring = NULL;
 752         }
 753
 754         FS_Print(f, "}\n");
 755 }
 756
 757 void PRVM_ED_PrintNum (int ent, const char *wildcard_fieldname)
 758 {
 759         PRVM_ED_Print(PRVM_EDICT_NUM(ent), wildcard_fieldname);
 760 }
 761
 762 /*
 763 =============
 764 PRVM_ED_PrintEdicts_f
 765
 766 For debugging, prints all the entities in the current server
 767 =============
 768 */
 769 void PRVM_ED_PrintEdicts_f (void)
 770 {
 771         int             i;
 772         const char *wildcard_fieldname;
 773
 774         if(Cmd_Argc() < 2 || Cmd_Argc() > 3)
 775         {
 776                 Con_Print("prvm_edicts <program name> <optional field name wildcard>\n");
 777                 return;
 778         }
 779
 780         PRVM_Begin;
 781         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
 782                 return;
 783
 784         if( Cmd_Argc() == 3)
 785                 wildcard_fieldname = Cmd_Argv(2);
 786         else
 787                 wildcard_fieldname = NULL;
 788
 789         Con_Printf("%s: %i entities\n", PRVM_NAME, prog->num_edicts);
 790         for (i=0 ; i<prog->num_edicts ; i++)
 791                 PRVM_ED_PrintNum (i, wildcard_fieldname);
 792
 793         PRVM_End;
 794 }
 795
 796 /*
 797 =============
 798 PRVM_ED_PrintEdict_f
 799
 800 For debugging, prints a single edict
 801 =============
 802 */
 803 void PRVM_ED_PrintEdict_f (void)
 804 {
 805         int             i;
 806         const char      *wildcard_fieldname;
 807
 808         if(Cmd_Argc() < 3 || Cmd_Argc() > 4)
 809         {
 810                 Con_Print("prvm_edict <program name> <edict number> <optional field name wildcard>\n");
 811                 return;
 812         }
 813
 814         PRVM_Begin;
 815         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
 816                 return;
 817
 818         i = atoi (Cmd_Argv(2));
 819         if (i >= prog->num_edicts)
 820         {
 821                 Con_Print("Bad edict number\n");
 822                 PRVM_End;
 823                 return;
 824         }
 825         if( Cmd_Argc() == 4)
 826                 // Optional Wildcard Provided
 827                 wildcard_fieldname = Cmd_Argv(3);
 828         else
 829                 // Use All
 830                 wildcard_fieldname = NULL;
 831         PRVM_ED_PrintNum (i, wildcard_fieldname);
 832
 833         PRVM_End;
 834 }
 835
 836 /*
 837 =============
 838 PRVM_ED_Count
 839
 840 For debugging
 841 =============
 842 */
 843 // 2 possibilities : 1. just displaying the active edict count
 844 //                                       2. making a function pointer [x]
 845 void PRVM_ED_Count_f (void)
 846 {
 847         int             i;
 848         prvm_edict_t    *ent;
 849         int             active;
 850
 851         if(Cmd_Argc() != 2)
 852         {
 853                 Con_Print("prvm_count <program name>\n");
 854                 return;
 855         }
 856
 857         PRVM_Begin;
 858         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
 859                 return;
 860
 861         if(prog->count_edicts)
 862                 prog->count_edicts();
 863         else
 864         {
 865                 active = 0;
 866                 for (i=0 ; i<prog->num_edicts ; i++)
 867                 {
 868                         ent = PRVM_EDICT_NUM(i);
 869                         if (ent->priv.required->free)
 870                                 continue;
 871                         active++;
 872                 }
 873
 874                 Con_Printf("num_edicts:%3i\n", prog->num_edicts);
 875                 Con_Printf("active    :%3i\n", active);
 876         }
 877
 878         PRVM_End;
 879 }
 880
 881 /*
 882 ==============================================================================
 883
 884                                         ARCHIVING GLOBALS
 885
 886 FIXME: need to tag constants, doesn't really work
 887 ==============================================================================
 888 */
 889
 890 /*
 891 =============
 892 PRVM_ED_WriteGlobals
 893 =============
 894 */
 895 void PRVM_ED_WriteGlobals (qfile_t *f)
 896 {
 897         ddef_t          *def;
 898         int                     i;
 899         const char              *name;
 900         int                     type;
 901
 902         FS_Print(f,"{\n");
 903         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
 904         {
 905                 def = &prog->globaldefs[i];
 906                 type = def->type;
 907                 if ( !(def->type & DEF_SAVEGLOBAL) )
 908                         continue;
 909                 type &= ~DEF_SAVEGLOBAL;
 910
 911                 if (type != ev_string && type != ev_float && type != ev_entity)
 912                         continue;
 913
 914                 name = PRVM_GetString(def->s_name);
 915
 916                 if(developer_entityparsing.integer)
 917                         Con_Printf("PRVM_ED_WriteGlobals: at global %s\n", name);
 918
 919                 prog->statestring = va("PRVM_ED_WriteGlobals, name=%s", name);
 920                 FS_Printf(f,"\"%s\" ", name);
 921                 FS_Printf(f,"\"%s\"\n", PRVM_UglyValueString((etype_t)type, (prvm_eval_t *)&prog->globals.generic[def->ofs]));
 922                 prog->statestring = NULL;
 923         }
 924         FS_Print(f,"}\n");
 925 }
 926
 927 /*
 928 =============
 929 PRVM_ED_ParseGlobals
 930 =============
 931 */
 932 void PRVM_ED_ParseGlobals (const char *data)
 933 {
 934         char keyname[MAX_INPUTLINE];
 935         ddef_t *key;
 936
 937         while (1)
 938         {
 939                 // parse key
 940                 if (!COM_ParseToken_Simple(&data, false, false))
 941                         PRVM_ERROR ("PRVM_ED_ParseGlobals: EOF without closing brace");
 942                 if (com_token[0] == '}')
 943                         break;
 944
 945                 if (developer_entityparsing.integer)
 946                         Con_Printf("Key: \"%s\"", com_token);
 947
 948                 strlcpy (keyname, com_token, sizeof(keyname));
 949
 950                 // parse value
 951                 if (!COM_ParseToken_Simple(&data, false, true))
 952                         PRVM_ERROR ("PRVM_ED_ParseGlobals: EOF without closing brace");
 953
 954                 if (developer_entityparsing.integer)
 955                         Con_Printf(" \"%s\"\n", com_token);
 956
 957                 if (com_token[0] == '}')
 958                         PRVM_ERROR ("PRVM_ED_ParseGlobals: closing brace without data");
 959
 960                 key = PRVM_ED_FindGlobal (keyname);
 961                 if (!key)
 962                 {
 963                         Con_DPrintf("'%s' is not a global on %s\n", keyname, PRVM_NAME);
 964                         continue;
 965                 }
 966
 967                 if (!PRVM_ED_ParseEpair(NULL, key, com_token, true))
 968                         PRVM_ERROR ("PRVM_ED_ParseGlobals: parse error");
 969         }
 970 }
 971
 972 //============================================================================
 973
 974
 975 /*
 976 =============
 977 PRVM_ED_ParseEval
 978
 979 Can parse either fields or globals
 980 returns false if error
 981 =============
 982 */
 983 qboolean PRVM_ED_ParseEpair(prvm_edict_t *ent, ddef_t *key, const char *s, qboolean parsebackslash)
 984 {
 985         int i, l;
 986         char *new_p;
 987         ddef_t *def;
 988         prvm_eval_t *val;
 989         mfunction_t *func;
 990
 991         if (ent)
 992                 val = (prvm_eval_t *)(ent->fields.vp + key->ofs);
 993         else
 994                 val = (prvm_eval_t *)(prog->globals.generic + key->ofs);
 995         switch (key->type & ~DEF_SAVEGLOBAL)
 996         {
 997         case ev_string:
 998                 l = (int)strlen(s) + 1;
 999                 val->string = PRVM_AllocString(l, &new_p);
1000                 for (i = 0;i < l;i++)
1001                 {
1002                         if (s[i] == '\\' && s[i+1] && parsebackslash)
1003                         {
1004                                 i++;
1005                                 if (s[i] == 'n')
1006                                         *new_p++ = '\n';
1007                                 else if (s[i] == 'r')
1008                                         *new_p++ = '\r';
1009                                 else
1010                                         *new_p++ = s[i];
1011                         }
1012                         else
1013                                 *new_p++ = s[i];
1014                 }
1015                 break;
1016
1017         case ev_float:
1018                 while (*s && ISWHITESPACE(*s))
1019                         s++;
1020                 val->_float = atof(s);
1021                 break;
1022
1023         case ev_vector:
1024                 for (i = 0;i < 3;i++)
1025                 {
1026                         while (*s && ISWHITESPACE(*s))
1027                                 s++;
1028                         if (!*s)
1029                                 break;
1030                         val->vector[i] = atof(s);
1031                         while (!ISWHITESPACE(*s))
1032                                 s++;
1033                         if (!*s)
1034                                 break;
1035                 }
1036                 break;
1037
1038         case ev_entity:
1039                 while (*s && ISWHITESPACE(*s))
1040                         s++;
1041                 i = atoi(s);
1042                 if (i >= prog->limit_edicts)
1043                         Con_Printf("PRVM_ED_ParseEpair: ev_entity reference too large (edict %u >= MAX_EDICTS %u) on %s\n", (unsigned int)i, prog->limit_edicts, PRVM_NAME);
1044                 while (i >= prog->max_edicts)
1045                         PRVM_MEM_IncreaseEdicts();
1046                 // if IncreaseEdicts was called the base pointer needs to be updated
1047                 if (ent)
1048                         val = (prvm_eval_t *)(ent->fields.vp + key->ofs);
1049                 val->edict = PRVM_EDICT_TO_PROG(PRVM_EDICT_NUM((int)i));
1050                 break;
1051
1052         case ev_field:
1053                 if (*s != '.')
1054                 {
1055                         Con_DPrintf("PRVM_ED_ParseEpair: Bogus field name %s in %s\n", s, PRVM_NAME);
1056                         return false;
1057                 }
1058                 def = PRVM_ED_FindField(s + 1);
1059                 if (!def)
1060                 {
1061                         Con_DPrintf("PRVM_ED_ParseEpair: Can't find field %s in %s\n", s, PRVM_NAME);
1062                         return false;
1063                 }
1064                 val->_int = def->ofs;
1065                 break;
1066
1067         case ev_function:
1068                 func = PRVM_ED_FindFunction(s);
1069                 if (!func)
1070                 {
1071                         Con_Printf("PRVM_ED_ParseEpair: Can't find function %s in %s\n", s, PRVM_NAME);
1072                         return false;
1073                 }
1074                 val->function = func - prog->functions;
1075                 break;
1076
1077         default:
1078                 Con_Printf("PRVM_ED_ParseEpair: Unknown key->type %i for key \"%s\" on %s\n", key->type, PRVM_GetString(key->s_name), PRVM_NAME);
1079                 return false;
1080         }
1081         return true;
1082 }
1083
1084 /*
1085 =============
1086 PRVM_GameCommand_f
1087
1088 Console command to send a string to QC function GameCommand of the
1089 indicated progs
1090
1091 Usage:
1092   sv_cmd adminmsg 3 "do not teamkill"
1093   cl_cmd someclientcommand
1094   menu_cmd somemenucommand
1095
1096 All progs can support this extension; sg calls it in server QC, cg in client
1097 QC, mg in menu QC.
1098 =============
1099 */
1100 void PRVM_GameCommand(const char *whichprogs, const char *whichcmd)
1101 {
1102         if(Cmd_Argc() < 1)
1103         {
1104                 Con_Printf("%s text...\n", whichcmd);
1105                 return;
1106         }
1107
1108         PRVM_Begin;
1109         if(!PRVM_SetProgFromString(whichprogs))
1110         // note: this is not PRVM_SetProg because that one aborts "hard" using PRVM_Error
1111         // also, it makes printing error messages easier!
1112         {
1113                 Con_Printf("%s program not loaded.\n", whichprogs);
1114                 return;
1115         }
1116
1117         if(!prog->funcoffsets.GameCommand)
1118         {
1119                 Con_Printf("%s program do not support GameCommand!\n", whichprogs);
1120         }
1121         else
1122         {
1123                 int restorevm_tempstringsbuf_cursize;
1124                 const char *s;
1125
1126                 s = Cmd_Args();
1127
1128                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
1129                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(s ? s : "");
1130                 PRVM_ExecuteProgram (prog->funcoffsets.GameCommand, "QC function GameCommand is missing");
1131                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
1132         }
1133
1134         PRVM_End;
1135 }
1136 void PRVM_GameCommand_Server_f(void)
1137 {
1138         PRVM_GameCommand("server", "sv_cmd");
1139 }
1140 void PRVM_GameCommand_Client_f(void)
1141 {
1142         PRVM_GameCommand("client", "cl_cmd");
1143 }
1144 void PRVM_GameCommand_Menu_f(void)
1145 {
1146         PRVM_GameCommand("menu", "menu_cmd");
1147 }
1148
1149 /*
1150 =============
1151 PRVM_ED_EdictGet_f
1152
1153 Console command to load a field of a specified edict
1154 =============
1155 */
1156 void PRVM_ED_EdictGet_f(void)
1157 {
1158         prvm_edict_t *ed;
1159         ddef_t *key;
1160         const char *s;
1161         prvm_eval_t *v;
1162
1163         if(Cmd_Argc() != 4 && Cmd_Argc() != 5)
1164         {
1165                 Con_Print("prvm_edictget <program name> <edict number> <field> [<cvar>]\n");
1166                 return;
1167         }
1168
1169         PRVM_Begin;
1170         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
1171         {
1172                 Con_Printf("Wrong program name %s !\n", Cmd_Argv(1));
1173                 return;
1174         }
1175
1176         ed = PRVM_EDICT_NUM(atoi(Cmd_Argv(2)));
1177
1178         if((key = PRVM_ED_FindField(Cmd_Argv(3))) == 0)
1179         {
1180                 Con_Printf("Key %s not found !\n", Cmd_Argv(3));
1181                 goto fail;
1182         }
1183
1184         v = (prvm_eval_t *)(ed->fields.vp + key->ofs);
1185         s = PRVM_UglyValueString(key->type, v);
1186         if(Cmd_Argc() == 5)
1187         {
1188                 cvar_t *cvar = Cvar_FindVar(Cmd_Argv(4));
1189                 if (cvar && cvar->flags & CVAR_READONLY)
1190                 {
1191                         Con_Printf("prvm_edictget: %s is read-only\n", cvar->name);
1192                         goto fail;
1193                 }
1194                 Cvar_Get(Cmd_Argv(4), s, 0, NULL);
1195         }
1196         else
1197                 Con_Printf("%s\n", s);
1198
1199 fail:
1200         PRVM_End;
1201 }
1202
1203 void PRVM_ED_GlobalGet_f(void)
1204 {
1205         ddef_t *key;
1206         const char *s;
1207         prvm_eval_t *v;
1208
1209         if(Cmd_Argc() != 3 && Cmd_Argc() != 4)
1210         {
1211                 Con_Print("prvm_globalget <program name> <global> [<cvar>]\n");
1212                 return;
1213         }
1214
1215         PRVM_Begin;
1216         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
1217         {
1218                 Con_Printf("Wrong program name %s !\n", Cmd_Argv(1));
1219                 return;
1220         }
1221
1222         key = PRVM_ED_FindGlobal(Cmd_Argv(2));
1223         if(!key)
1224         {
1225                 Con_Printf( "No global '%s' in %s!\n", Cmd_Argv(2), Cmd_Argv(1) );
1226                 goto fail;
1227         }
1228
1229         v = (prvm_eval_t *) &prog->globals.generic[key->ofs];
1230         s = PRVM_UglyValueString(key->type, v);
1231         if(Cmd_Argc() == 4)
1232         {
1233                 cvar_t *cvar = Cvar_FindVar(Cmd_Argv(3));
1234                 if (cvar && cvar->flags & CVAR_READONLY)
1235                 {
1236                         Con_Printf("prvm_globalget: %s is read-only\n", cvar->name);
1237                         goto fail;
1238                 }
1239                 Cvar_Get(Cmd_Argv(3), s, 0, NULL);
1240         }
1241         else
1242                 Con_Printf("%s\n", s);
1243
1244 fail:
1245         PRVM_End;
1246 }
1247
1248 /*
1249 =============
1250 PRVM_ED_EdictSet_f
1251
1252 Console command to set a field of a specified edict
1253 =============
1254 */
1255 void PRVM_ED_EdictSet_f(void)
1256 {
1257         prvm_edict_t *ed;
1258         ddef_t *key;
1259
1260         if(Cmd_Argc() != 5)
1261         {
1262                 Con_Print("prvm_edictset <program name> <edict number> <field> <value>\n");
1263                 return;
1264         }
1265
1266         PRVM_Begin;
1267         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
1268         {
1269                 Con_Printf("Wrong program name %s !\n", Cmd_Argv(1));
1270                 return;
1271         }
1272
1273         ed = PRVM_EDICT_NUM(atoi(Cmd_Argv(2)));
1274
1275         if((key = PRVM_ED_FindField(Cmd_Argv(3))) == 0)
1276                 Con_Printf("Key %s not found !\n", Cmd_Argv(3));
1277         else
1278                 PRVM_ED_ParseEpair(ed, key, Cmd_Argv(4), true);
1279
1280         PRVM_End;
1281 }
1282
1283 /*
1284 ====================
1285 PRVM_ED_ParseEdict
1286
1287 Parses an edict out of the given string, returning the new position
1288 ed should be a properly initialized empty edict.
1289 Used for initial level load and for savegames.
1290 ====================
1291 */
1292 const char *PRVM_ED_ParseEdict (const char *data, prvm_edict_t *ent)
1293 {
1294         ddef_t *key;
1295         qboolean anglehack;
1296         qboolean init;
1297         char keyname[256];
1298         size_t n;
1299
1300         init = false;
1301
1302 // go through all the dictionary pairs
1303         while (1)
1304         {
1305         // parse key
1306                 if (!COM_ParseToken_Simple(&data, false, false))
1307                         PRVM_ERROR ("PRVM_ED_ParseEdict: EOF without closing brace");
1308                 if (developer_entityparsing.integer)
1309                         Con_Printf("Key: \"%s\"", com_token);
1310                 if (com_token[0] == '}')
1311                         break;
1312
1313                 // anglehack is to allow QuakeEd to write single scalar angles
1314                 // and allow them to be turned into vectors. (FIXME...)
1315                 if (!strcmp(com_token, "angle"))
1316                 {
1317                         strlcpy (com_token, "angles", sizeof(com_token));
1318                         anglehack = true;
1319                 }
1320                 else
1321                         anglehack = false;
1322
1323                 // FIXME: change light to _light to get rid of this hack
1324                 if (!strcmp(com_token, "light"))
1325                         strlcpy (com_token, "light_lev", sizeof(com_token));    // hack for single light def
1326
1327                 strlcpy (keyname, com_token, sizeof(keyname));
1328
1329                 // another hack to fix keynames with trailing spaces
1330                 n = strlen(keyname);
1331                 while (n && keyname[n-1] == ' ')
1332                 {
1333                         keyname[n-1] = 0;
1334                         n--;
1335                 }
1336
1337         // parse value
1338                 if (!COM_ParseToken_Simple(&data, false, false))
1339                         PRVM_ERROR ("PRVM_ED_ParseEdict: EOF without closing brace");
1340                 if (developer_entityparsing.integer)
1341                         Con_Printf(" \"%s\"\n", com_token);
1342
1343                 if (com_token[0] == '}')
1344                         PRVM_ERROR ("PRVM_ED_ParseEdict: closing brace without data");
1345
1346                 init = true;
1347
1348                 // ignore attempts to set key "" (this problem occurs in nehahra neh1m8.bsp)
1349                 if (!keyname[0])
1350                         continue;
1351
1352 // keynames with a leading underscore are used for utility comments,
1353 // and are immediately discarded by quake
1354                 if (keyname[0] == '_')
1355                         continue;
1356
1357                 key = PRVM_ED_FindField (keyname);
1358                 if (!key)
1359                 {
1360                         Con_DPrintf("%s: '%s' is not a field\n", PRVM_NAME, keyname);
1361                         continue;
1362                 }
1363
1364                 if (anglehack)
1365                 {
1366                         char    temp[32];
1367                         strlcpy (temp, com_token, sizeof(temp));
1368                         dpsnprintf (com_token, sizeof(com_token), "0 %s 0", temp);
1369                 }
1370
1371                 if (!PRVM_ED_ParseEpair(ent, key, com_token, strcmp(keyname, "wad") != 0))
1372                         PRVM_ERROR ("PRVM_ED_ParseEdict: parse error");
1373         }
1374
1375         if (!init)
1376                 ent->priv.required->free = true;
1377
1378         return data;
1379 }
1380
1381
1382 /*
1383 ================
1384 PRVM_ED_LoadFromFile
1385
1386 The entities are directly placed in the array, rather than allocated with
1387 PRVM_ED_Alloc, because otherwise an error loading the map would have entity
1388 number references out of order.
1389
1390 Creates a server's entity / program execution context by
1391 parsing textual entity definitions out of an ent file.
1392
1393 Used for both fresh maps and savegame loads.  A fresh map would also need
1394 to call PRVM_ED_CallSpawnFunctions () to let the objects initialize themselves.
1395 ================
1396 */
1397 void PRVM_ED_LoadFromFile (const char *data)
1398 {
1399         prvm_edict_t *ent;
1400         int parsed, inhibited, spawned, died;
1401         const char *funcname;
1402         mfunction_t *func;
1403
1404         parsed = 0;
1405         inhibited = 0;
1406         spawned = 0;
1407         died = 0;
1408
1409
1410 // parse ents
1411         while (1)
1412         {
1413 // parse the opening brace
1414                 if (!COM_ParseToken_Simple(&data, false, false))
1415                         break;
1416                 if (com_token[0] != '{')
1417                         PRVM_ERROR ("PRVM_ED_LoadFromFile: %s: found %s when expecting {", PRVM_NAME, com_token);
1418
1419                 // CHANGED: this is not conform to PR_LoadFromFile
1420                 if(prog->loadintoworld)
1421                 {
1422                         prog->loadintoworld = false;
1423                         ent = PRVM_EDICT_NUM(0);
1424                 }
1425                 else
1426                         ent = PRVM_ED_Alloc();
1427
1428                 // clear it
1429                 if (ent != prog->edicts)        // hack
1430                         memset (ent->fields.vp, 0, prog->progs->entityfields * 4);
1431
1432                 data = PRVM_ED_ParseEdict (data, ent);
1433                 parsed++;
1434
1435                 // remove the entity ?
1436                 if(prog->load_edict && !prog->load_edict(ent))
1437                 {
1438                         PRVM_ED_Free(ent);
1439                         inhibited++;
1440                         continue;
1441                 }
1442
1443                 if (prog->funcoffsets.SV_OnEntityPreSpawnFunction)
1444                 {
1445                         // self = ent
1446                         PRVM_GLOBALFIELDVALUE(prog->globaloffsets.self)->edict = PRVM_EDICT_TO_PROG(ent);
1447                         PRVM_ExecuteProgram (prog->funcoffsets.SV_OnEntityPreSpawnFunction, "QC function SV_OnEntityPreSpawnFunction is missing");
1448                 }
1449
1450                 if(ent->priv.required->free)
1451                 {
1452                         inhibited++;
1453                         continue;
1454                 }
1455
1456 //
1457 // immediately call spawn function, but only if there is a self global and a classname
1458 //
1459                 if(!ent->priv.required->free)
1460                 if(prog->globaloffsets.self >= 0 && prog->fieldoffsets.classname >= 0)
1461                 {
1462                         string_t handle =  PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.classname)->string;
1463                         if (!handle)
1464                         {
1465                                 Con_Print("No classname for:\n");
1466                                 PRVM_ED_Print(ent, NULL);
1467                                 PRVM_ED_Free (ent);
1468                                 continue;
1469                         }
1470
1471                         // look for the spawn function
1472                         funcname = PRVM_GetString(handle);
1473                         func = PRVM_ED_FindFunction (va("spawnfunc_%s", funcname));
1474                         if(!func)
1475                                 if(prog->globaloffsets.require_spawnfunc_prefix < 0)
1476                                         func = PRVM_ED_FindFunction (funcname);
1477
1478                         if (!func)
1479                         {
1480                                 // check for OnEntityNoSpawnFunction
1481                                 if (prog->funcoffsets.SV_OnEntityNoSpawnFunction)
1482                                 {
1483                                         // self = ent
1484                                         PRVM_GLOBALFIELDVALUE(prog->globaloffsets.self)->edict = PRVM_EDICT_TO_PROG(ent);
1485                                         PRVM_ExecuteProgram (prog->funcoffsets.SV_OnEntityNoSpawnFunction, "QC function SV_OnEntityNoSpawnFunction is missing");
1486                                 }
1487                                 else
1488                                 {
1489                                         if (developer.integer) // don't confuse non-developers with errors
1490                                         {
1491                                                 Con_Print("No spawn function for:\n");
1492                                                 PRVM_ED_Print(ent, NULL);
1493                                         }
1494                                         PRVM_ED_Free (ent);
1495                                         continue; // not included in "inhibited" count
1496                                 }
1497                         }
1498                         else
1499                         {
1500                                 // self = ent
1501                                 PRVM_GLOBALFIELDVALUE(prog->globaloffsets.self)->edict = PRVM_EDICT_TO_PROG(ent);
1502                                 PRVM_ExecuteProgram (func - prog->functions, "");
1503                         }
1504                 }
1505
1506                 if(!ent->priv.required->free)
1507                 if (prog->funcoffsets.SV_OnEntityPostSpawnFunction)
1508                 {
1509                         // self = ent
1510                         PRVM_GLOBALFIELDVALUE(prog->globaloffsets.self)->edict = PRVM_EDICT_TO_PROG(ent);
1511                         PRVM_ExecuteProgram (prog->funcoffsets.SV_OnEntityPostSpawnFunction, "QC function SV_OnEntityPostSpawnFunction is missing");
1512                 }
1513
1514                 spawned++;
1515                 if (ent->priv.required->free)
1516                         died++;
1517         }
1518
1519         Con_DPrintf("%s: %i new entities parsed, %i new inhibited, %i (%i new) spawned (whereas %i removed self, %i stayed)\n", PRVM_NAME, parsed, inhibited, prog->num_edicts, spawned, died, spawned - died);
1520 }
1521
1522 void PRVM_FindOffsets(void)
1523 {
1524         // field and global searches use -1 for NULL
1525         memset(&prog->fieldoffsets, -1, sizeof(prog->fieldoffsets));
1526         memset(&prog->globaloffsets, -1, sizeof(prog->globaloffsets));
1527         // functions use 0 for NULL
1528         memset(&prog->funcoffsets, 0, sizeof(prog->funcoffsets));
1529
1530         // server and client qc use a lot of similar fields, so this is combined
1531         prog->fieldoffsets.SendEntity                     = PRVM_ED_FindFieldOffset("SendEntity");
1532         prog->fieldoffsets.SendFlags                      = PRVM_ED_FindFieldOffset("SendFlags");
1533         prog->fieldoffsets.Version                        = PRVM_ED_FindFieldOffset("Version");
1534         prog->fieldoffsets.alpha                          = PRVM_ED_FindFieldOffset("alpha");
1535         prog->fieldoffsets.ammo_cells1                    = PRVM_ED_FindFieldOffset("ammo_cells1");
1536         prog->fieldoffsets.ammo_lava_nails                = PRVM_ED_FindFieldOffset("ammo_lava_nails");
1537         prog->fieldoffsets.ammo_multi_rockets             = PRVM_ED_FindFieldOffset("ammo_multi_rockets");
1538         prog->fieldoffsets.ammo_nails1                    = PRVM_ED_FindFieldOffset("ammo_nails1");
1539         prog->fieldoffsets.ammo_plasma                    = PRVM_ED_FindFieldOffset("ammo_plasma");
1540         prog->fieldoffsets.ammo_rockets1                  = PRVM_ED_FindFieldOffset("ammo_rockets1");
1541         prog->fieldoffsets.ammo_shells1                   = PRVM_ED_FindFieldOffset("ammo_shells1");
1542         prog->fieldoffsets.angles                         = PRVM_ED_FindFieldOffset("angles");
1543         prog->fieldoffsets.button3                        = PRVM_ED_FindFieldOffset("button3");
1544         prog->fieldoffsets.button4                        = PRVM_ED_FindFieldOffset("button4");
1545         prog->fieldoffsets.button5                        = PRVM_ED_FindFieldOffset("button5");
1546         prog->fieldoffsets.button6                        = PRVM_ED_FindFieldOffset("button6");
1547         prog->fieldoffsets.button7                        = PRVM_ED_FindFieldOffset("button7");
1548         prog->fieldoffsets.button8                        = PRVM_ED_FindFieldOffset("button8");
1549         prog->fieldoffsets.button9                        = PRVM_ED_FindFieldOffset("button9");
1550         prog->fieldoffsets.button10                       = PRVM_ED_FindFieldOffset("button10");
1551         prog->fieldoffsets.button11                       = PRVM_ED_FindFieldOffset("button11");
1552         prog->fieldoffsets.button12                       = PRVM_ED_FindFieldOffset("button12");
1553         prog->fieldoffsets.button13                       = PRVM_ED_FindFieldOffset("button13");
1554         prog->fieldoffsets.button14                       = PRVM_ED_FindFieldOffset("button14");
1555         prog->fieldoffsets.button15                       = PRVM_ED_FindFieldOffset("button15");
1556         prog->fieldoffsets.button16                       = PRVM_ED_FindFieldOffset("button16");
1557         prog->fieldoffsets.buttonchat                     = PRVM_ED_FindFieldOffset("buttonchat");
1558         prog->fieldoffsets.buttonuse                      = PRVM_ED_FindFieldOffset("buttonuse");
1559         prog->fieldoffsets.chain                          = PRVM_ED_FindFieldOffset("chain");
1560         prog->fieldoffsets.classname                      = PRVM_ED_FindFieldOffset("classname");
1561         prog->fieldoffsets.clientcamera                   = PRVM_ED_FindFieldOffset("clientcamera");
1562         prog->fieldoffsets.clientcolors                   = PRVM_ED_FindFieldOffset("clientcolors");
1563         prog->fieldoffsets.clientstatus                   = PRVM_ED_FindFieldOffset("clientstatus");
1564         prog->fieldoffsets.color                          = PRVM_ED_FindFieldOffset("color");
1565         prog->fieldoffsets.colormod                       = PRVM_ED_FindFieldOffset("colormod");
1566         prog->fieldoffsets.contentstransition             = PRVM_ED_FindFieldOffset("contentstransition");
1567         prog->fieldoffsets.cursor_active                  = PRVM_ED_FindFieldOffset("cursor_active");
1568         prog->fieldoffsets.cursor_screen                  = PRVM_ED_FindFieldOffset("cursor_screen");
1569         prog->fieldoffsets.cursor_trace_endpos            = PRVM_ED_FindFieldOffset("cursor_trace_endpos");
1570         prog->fieldoffsets.cursor_trace_ent               = PRVM_ED_FindFieldOffset("cursor_trace_ent");
1571         prog->fieldoffsets.cursor_trace_start             = PRVM_ED_FindFieldOffset("cursor_trace_start");
1572         prog->fieldoffsets.customizeentityforclient       = PRVM_ED_FindFieldOffset("customizeentityforclient");
1573         prog->fieldoffsets.dimension_hit                  = PRVM_ED_FindFieldOffset("dimension_hit");
1574         prog->fieldoffsets.dimension_solid                = PRVM_ED_FindFieldOffset("dimension_solid");
1575         prog->fieldoffsets.disableclientprediction        = PRVM_ED_FindFieldOffset("disableclientprediction");
1576         prog->fieldoffsets.dphitcontentsmask              = PRVM_ED_FindFieldOffset("dphitcontentsmask");
1577         prog->fieldoffsets.drawonlytoclient               = PRVM_ED_FindFieldOffset("drawonlytoclient");
1578         prog->fieldoffsets.exteriormodeltoclient          = PRVM_ED_FindFieldOffset("exteriormodeltoclient");
1579         prog->fieldoffsets.fatness                        = PRVM_ED_FindFieldOffset("fatness");
1580         prog->fieldoffsets.forceshader                    = PRVM_ED_FindFieldOffset("forceshader");
1581         prog->fieldoffsets.frame                          = PRVM_ED_FindFieldOffset("frame");
1582         prog->fieldoffsets.frame1time                     = PRVM_ED_FindFieldOffset("frame1time");
1583         prog->fieldoffsets.frame2                         = PRVM_ED_FindFieldOffset("frame2");
1584         prog->fieldoffsets.frame2time                     = PRVM_ED_FindFieldOffset("frame2time");
1585         prog->fieldoffsets.frame3                         = PRVM_ED_FindFieldOffset("frame3");
1586         prog->fieldoffsets.frame3time                     = PRVM_ED_FindFieldOffset("frame3time");
1587         prog->fieldoffsets.frame4                         = PRVM_ED_FindFieldOffset("frame4");
1588         prog->fieldoffsets.frame4time                     = PRVM_ED_FindFieldOffset("frame4time");
1589         prog->fieldoffsets.fullbright                     = PRVM_ED_FindFieldOffset("fullbright");
1590         prog->fieldoffsets.glow_color                     = PRVM_ED_FindFieldOffset("glow_color");
1591         prog->fieldoffsets.glow_size                      = PRVM_ED_FindFieldOffset("glow_size");
1592         prog->fieldoffsets.glow_trail                     = PRVM_ED_FindFieldOffset("glow_trail");
1593         prog->fieldoffsets.glowmod                        = PRVM_ED_FindFieldOffset("glowmod");
1594         prog->fieldoffsets.gravity                        = PRVM_ED_FindFieldOffset("gravity");
1595         prog->fieldoffsets.groundentity                   = PRVM_ED_FindFieldOffset("groundentity");
1596         prog->fieldoffsets.hull                           = PRVM_ED_FindFieldOffset("hull");
1597         prog->fieldoffsets.ideal_yaw                      = PRVM_ED_FindFieldOffset("ideal_yaw");
1598         prog->fieldoffsets.idealpitch                     = PRVM_ED_FindFieldOffset("idealpitch");
1599         prog->fieldoffsets.items2                         = PRVM_ED_FindFieldOffset("items2");
1600         prog->fieldoffsets.lerpfrac                       = PRVM_ED_FindFieldOffset("lerpfrac");
1601         prog->fieldoffsets.lerpfrac3                      = PRVM_ED_FindFieldOffset("lerpfrac3");
1602         prog->fieldoffsets.lerpfrac4                      = PRVM_ED_FindFieldOffset("lerpfrac4");
1603         prog->fieldoffsets.light_lev                      = PRVM_ED_FindFieldOffset("light_lev");
1604         prog->fieldoffsets.message                        = PRVM_ED_FindFieldOffset("message");
1605         prog->fieldoffsets.modelflags                     = PRVM_ED_FindFieldOffset("modelflags");
1606         prog->fieldoffsets.movement                       = PRVM_ED_FindFieldOffset("movement");
1607         prog->fieldoffsets.movetypesteplandevent          = PRVM_ED_FindFieldOffset("movetypesteplandevent");
1608         prog->fieldoffsets.netaddress                     = PRVM_ED_FindFieldOffset("netaddress");
1609         prog->fieldoffsets.nextthink                      = PRVM_ED_FindFieldOffset("nextthink");
1610         prog->fieldoffsets.nodrawtoclient                 = PRVM_ED_FindFieldOffset("nodrawtoclient");
1611         prog->fieldoffsets.pflags                         = PRVM_ED_FindFieldOffset("pflags");
1612         prog->fieldoffsets.ping                           = PRVM_ED_FindFieldOffset("ping");
1613         prog->fieldoffsets.packetloss                     = PRVM_ED_FindFieldOffset("ping_packetloss");
1614         prog->fieldoffsets.movementloss                   = PRVM_ED_FindFieldOffset("ping_movementloss");
1615         prog->fieldoffsets.pitch_speed                    = PRVM_ED_FindFieldOffset("pitch_speed");
1616         prog->fieldoffsets.playermodel                    = PRVM_ED_FindFieldOffset("playermodel");
1617         prog->fieldoffsets.playerskin                     = PRVM_ED_FindFieldOffset("playerskin");
1618         prog->fieldoffsets.pmodel                         = PRVM_ED_FindFieldOffset("pmodel");
1619         prog->fieldoffsets.punchvector                    = PRVM_ED_FindFieldOffset("punchvector");
1620         prog->fieldoffsets.renderamt                      = PRVM_ED_FindFieldOffset("renderamt"); // HalfLife support
1621         prog->fieldoffsets.renderflags                    = PRVM_ED_FindFieldOffset("renderflags");
1622         prog->fieldoffsets.rendermode                     = PRVM_ED_FindFieldOffset("rendermode"); // HalfLife support
1623         prog->fieldoffsets.scale                          = PRVM_ED_FindFieldOffset("scale");
1624         prog->fieldoffsets.shadertime                     = PRVM_ED_FindFieldOffset("shadertime");
1625         prog->fieldoffsets.skeletonindex                  = PRVM_ED_FindFieldOffset("skeletonindex");
1626         prog->fieldoffsets.style                          = PRVM_ED_FindFieldOffset("style");
1627         prog->fieldoffsets.tag_entity                     = PRVM_ED_FindFieldOffset("tag_entity");
1628         prog->fieldoffsets.tag_index                      = PRVM_ED_FindFieldOffset("tag_index");
1629         prog->fieldoffsets.think                          = PRVM_ED_FindFieldOffset("think");
1630         prog->fieldoffsets.viewmodelforclient             = PRVM_ED_FindFieldOffset("viewmodelforclient");
1631         prog->fieldoffsets.viewzoom                       = PRVM_ED_FindFieldOffset("viewzoom");
1632         prog->fieldoffsets.yaw_speed                      = PRVM_ED_FindFieldOffset("yaw_speed");
1633         prog->fieldoffsets.bouncefactor                   = PRVM_ED_FindFieldOffset("bouncefactor");
1634         prog->fieldoffsets.bouncestop                     = PRVM_ED_FindFieldOffset("bouncestop");
1635
1636         prog->fieldoffsets.solid                          = PRVM_ED_FindFieldOffset("solid");
1637         prog->fieldoffsets.movetype                       = PRVM_ED_FindFieldOffset("movetype");
1638         prog->fieldoffsets.modelindex                     = PRVM_ED_FindFieldOffset("modelindex");
1639         prog->fieldoffsets.mins                           = PRVM_ED_FindFieldOffset("mins");
1640         prog->fieldoffsets.maxs                           = PRVM_ED_FindFieldOffset("maxs");
1641         prog->fieldoffsets.mass                           = PRVM_ED_FindFieldOffset("mass");
1642         prog->fieldoffsets.origin                         = PRVM_ED_FindFieldOffset("origin");
1643         prog->fieldoffsets.velocity                       = PRVM_ED_FindFieldOffset("velocity");
1644         //prog->fieldoffsets.axis_forward                   = PRVM_ED_FindFieldOffset("axis_forward");
1645         //prog->fieldoffsets.axis_left                      = PRVM_ED_FindFieldOffset("axis_left");
1646         //prog->fieldoffsets.axis_up                        = PRVM_ED_FindFieldOffset("axis_up");
1647         //prog->fieldoffsets.spinvelocity                   = PRVM_ED_FindFieldOffset("spinvelocity");
1648         prog->fieldoffsets.angles                         = PRVM_ED_FindFieldOffset("angles");
1649         prog->fieldoffsets.avelocity                      = PRVM_ED_FindFieldOffset("avelocity");
1650         prog->fieldoffsets.aiment                         = PRVM_ED_FindFieldOffset("aiment");
1651         prog->fieldoffsets.enemy                          = PRVM_ED_FindFieldOffset("enemy");
1652         prog->fieldoffsets.jointtype                      = PRVM_ED_FindFieldOffset("jointtype");
1653         prog->fieldoffsets.movedir                        = PRVM_ED_FindFieldOffset("movedir");
1654
1655         prog->funcoffsets.CSQC_ConsoleCommand             = PRVM_ED_FindFunctionOffset("CSQC_ConsoleCommand");
1656         prog->funcoffsets.CSQC_Ent_Remove                 = PRVM_ED_FindFunctionOffset("CSQC_Ent_Remove");
1657         prog->funcoffsets.CSQC_Ent_Spawn                  = PRVM_ED_FindFunctionOffset("CSQC_Ent_Spawn");
1658         prog->funcoffsets.CSQC_Ent_Update                 = PRVM_ED_FindFunctionOffset("CSQC_Ent_Update");
1659         prog->funcoffsets.CSQC_Event                      = PRVM_ED_FindFunctionOffset("CSQC_Event");
1660         prog->funcoffsets.CSQC_Event_Sound                = PRVM_ED_FindFunctionOffset("CSQC_Event_Sound");
1661         prog->funcoffsets.CSQC_Init                       = PRVM_ED_FindFunctionOffset("CSQC_Init");
1662         prog->funcoffsets.CSQC_InputEvent                 = PRVM_ED_FindFunctionOffset("CSQC_InputEvent");
1663         prog->funcoffsets.CSQC_Parse_CenterPrint          = PRVM_ED_FindFunctionOffset("CSQC_Parse_CenterPrint");
1664         prog->funcoffsets.CSQC_Parse_Print                = PRVM_ED_FindFunctionOffset("CSQC_Parse_Print");
1665         prog->funcoffsets.CSQC_Parse_StuffCmd             = PRVM_ED_FindFunctionOffset("CSQC_Parse_StuffCmd");
1666         prog->funcoffsets.CSQC_Parse_TempEntity           = PRVM_ED_FindFunctionOffset("CSQC_Parse_TempEntity");
1667         prog->funcoffsets.CSQC_Shutdown                   = PRVM_ED_FindFunctionOffset("CSQC_Shutdown");
1668         prog->funcoffsets.CSQC_UpdateView                 = PRVM_ED_FindFunctionOffset("CSQC_UpdateView");
1669         prog->funcoffsets.EndFrame                        = PRVM_ED_FindFunctionOffset("EndFrame");
1670         prog->funcoffsets.GameCommand                     = PRVM_ED_FindFunctionOffset("GameCommand");
1671         prog->funcoffsets.Gecko_Query                     = PRVM_ED_FindFunctionOffset("Gecko_Query");
1672         prog->funcoffsets.RestoreGame                     = PRVM_ED_FindFunctionOffset("RestoreGame");
1673         prog->funcoffsets.SV_ChangeTeam                   = PRVM_ED_FindFunctionOffset("SV_ChangeTeam");
1674         prog->funcoffsets.SV_OnEntityNoSpawnFunction      = PRVM_ED_FindFunctionOffset("SV_OnEntityNoSpawnFunction");
1675         prog->funcoffsets.SV_OnEntityPostSpawnFunction    = PRVM_ED_FindFunctionOffset("SV_OnEntityPostSpawnFunction");
1676         prog->funcoffsets.SV_OnEntityPreSpawnFunction     = PRVM_ED_FindFunctionOffset("SV_OnEntityPreSpawnFunction");
1677         prog->funcoffsets.SV_ParseClientCommand           = PRVM_ED_FindFunctionOffset("SV_ParseClientCommand");
1678         prog->funcoffsets.SV_PausedTic                    = PRVM_ED_FindFunctionOffset("SV_PausedTic");
1679         prog->funcoffsets.SV_PlayerPhysics                = PRVM_ED_FindFunctionOffset("SV_PlayerPhysics");
1680         prog->funcoffsets.SV_Shutdown                     = PRVM_ED_FindFunctionOffset("SV_Shutdown");
1681         prog->funcoffsets.URI_Get_Callback                = PRVM_ED_FindFunctionOffset("URI_Get_Callback");
1682         prog->globaloffsets.SV_InitCmd                    = PRVM_ED_FindGlobalOffset("SV_InitCmd");
1683         prog->globaloffsets.coop                          = PRVM_ED_FindGlobalOffset("coop");
1684         prog->globaloffsets.deathmatch                    = PRVM_ED_FindGlobalOffset("deathmatch");
1685         prog->globaloffsets.dmg_origin                    = PRVM_ED_FindGlobalOffset("dmg_origin");
1686         prog->globaloffsets.dmg_save                      = PRVM_ED_FindGlobalOffset("dmg_save");
1687         prog->globaloffsets.dmg_take                      = PRVM_ED_FindGlobalOffset("dmg_take");
1688         prog->globaloffsets.drawfont                      = PRVM_ED_FindGlobalOffset("drawfont");
1689         prog->globaloffsets.gettaginfo_forward            = PRVM_ED_FindGlobalOffset("gettaginfo_forward");
1690         prog->globaloffsets.gettaginfo_name               = PRVM_ED_FindGlobalOffset("gettaginfo_name");
1691         prog->globaloffsets.gettaginfo_offset             = PRVM_ED_FindGlobalOffset("gettaginfo_offset");
1692         prog->globaloffsets.gettaginfo_parent             = PRVM_ED_FindGlobalOffset("gettaginfo_parent");
1693         prog->globaloffsets.gettaginfo_right              = PRVM_ED_FindGlobalOffset("gettaginfo_right");
1694         prog->globaloffsets.gettaginfo_up                 = PRVM_ED_FindGlobalOffset("gettaginfo_up");
1695         prog->globaloffsets.transparent_offset            = PRVM_ED_FindGlobalOffset("transparent_offset");
1696         prog->globaloffsets.intermission                  = PRVM_ED_FindGlobalOffset("intermission");
1697         prog->globaloffsets.require_spawnfunc_prefix      = PRVM_ED_FindGlobalOffset("require_spawnfunc_prefix");
1698         prog->globaloffsets.sb_showscores                 = PRVM_ED_FindGlobalOffset("sb_showscores");
1699         prog->globaloffsets.self                          = PRVM_ED_FindGlobalOffset("self");
1700         prog->globaloffsets.serverdeltatime               = PRVM_ED_FindGlobalOffset("serverdeltatime");
1701         prog->globaloffsets.serverprevtime                = PRVM_ED_FindGlobalOffset("serverprevtime");
1702         prog->globaloffsets.servertime                    = PRVM_ED_FindGlobalOffset("servertime");
1703         prog->globaloffsets.time                          = PRVM_ED_FindGlobalOffset("time");
1704         prog->globaloffsets.trace_allsolid                = PRVM_ED_FindGlobalOffset("trace_allsolid");
1705         prog->globaloffsets.trace_dphitcontents           = PRVM_ED_FindGlobalOffset("trace_dphitcontents");
1706         prog->globaloffsets.trace_dphitq3surfaceflags     = PRVM_ED_FindGlobalOffset("trace_dphitq3surfaceflags");
1707         prog->globaloffsets.trace_dphittexturename        = PRVM_ED_FindGlobalOffset("trace_dphittexturename");
1708         prog->globaloffsets.trace_dpstartcontents         = PRVM_ED_FindGlobalOffset("trace_dpstartcontents");
1709         prog->globaloffsets.trace_endpos                  = PRVM_ED_FindGlobalOffset("trace_endpos");
1710         prog->globaloffsets.trace_ent                     = PRVM_ED_FindGlobalOffset("trace_ent");
1711         prog->globaloffsets.trace_fraction                = PRVM_ED_FindGlobalOffset("trace_fraction");
1712         prog->globaloffsets.trace_inopen                  = PRVM_ED_FindGlobalOffset("trace_inopen");
1713         prog->globaloffsets.trace_inwater                 = PRVM_ED_FindGlobalOffset("trace_inwater");
1714         prog->globaloffsets.trace_networkentity           = PRVM_ED_FindGlobalOffset("trace_networkentity");
1715         prog->globaloffsets.trace_plane_dist              = PRVM_ED_FindGlobalOffset("trace_plane_dist");
1716         prog->globaloffsets.trace_plane_normal            = PRVM_ED_FindGlobalOffset("trace_plane_normal");
1717         prog->globaloffsets.trace_startsolid              = PRVM_ED_FindGlobalOffset("trace_startsolid");
1718         prog->globaloffsets.v_forward                     = PRVM_ED_FindGlobalOffset("v_forward");
1719         prog->globaloffsets.v_right                       = PRVM_ED_FindGlobalOffset("v_right");
1720         prog->globaloffsets.v_up                          = PRVM_ED_FindGlobalOffset("v_up");
1721         prog->globaloffsets.view_angles                   = PRVM_ED_FindGlobalOffset("view_angles");
1722         prog->globaloffsets.worldstatus                   = PRVM_ED_FindGlobalOffset("worldstatus");
1723
1724         // menu qc only uses some functions, nothing else
1725         prog->funcoffsets.m_draw                          = PRVM_ED_FindFunctionOffset("m_draw");
1726         prog->funcoffsets.m_init                          = PRVM_ED_FindFunctionOffset("m_init");
1727         prog->funcoffsets.m_keydown                       = PRVM_ED_FindFunctionOffset("m_keydown");
1728         prog->funcoffsets.m_keyup                         = PRVM_ED_FindFunctionOffset("m_keyup");
1729         prog->funcoffsets.m_shutdown                      = PRVM_ED_FindFunctionOffset("m_shutdown");
1730         prog->funcoffsets.m_toggle                        = PRVM_ED_FindFunctionOffset("m_toggle");
1731 }
1732
1733 // not used
1734 /*
1735 typedef struct dpfield_s
1736 {
1737         int type;
1738         char *string;
1739 }
1740 dpfield_t;
1741
1742 #define DPFIELDS (sizeof(dpfields) / sizeof(dpfield_t))
1743
1744 dpfield_t dpfields[] =
1745 {
1746 };
1747 */
1748
1749 /*
1750 ===============
1751 PRVM_ResetProg
1752 ===============
1753 */
1754
1755 #define PO_HASHSIZE 16384
1756 typedef struct po_string_s
1757 {
1758         char *key, *value;
1759         struct po_string_s *nextonhashchain;
1760 }
1761 po_string_t;
1762 typedef struct po_s
1763 {
1764         po_string_t *hashtable[PO_HASHSIZE];
1765 }
1766 po_t;
1767 void PRVM_PO_UnparseString(char *out, const char *in, size_t outsize)
1768 {
1769         for(;;)
1770         {
1771                 switch(*in)
1772                 {
1773                         case 0:
1774                                 *out++ = 0;
1775                                 return;
1776                         case '\a': if(outsize >= 2) { *out++ = '\\'; *out++ = 'a'; outsize -= 2; } break;
1777                         case '\b': if(outsize >= 2) { *out++ = '\\'; *out++ = 'b'; outsize -= 2; } break;
1778                         case '\t': if(outsize >= 2) { *out++ = '\\'; *out++ = 't'; outsize -= 2; } break;
1779                         case '\r': if(outsize >= 2) { *out++ = '\\'; *out++ = 'r'; outsize -= 2; } break;
1780                         case '\n': if(outsize >= 2) { *out++ = '\\'; *out++ = 'n'; outsize -= 2; } break;
1781                         case '\\': if(outsize >= 2) { *out++ = '\\'; *out++ = '\\'; outsize -= 2; } break;
1782                         case '"': if(outsize >= 2) { *out++ = '\\'; *out++ = '"'; outsize -= 2; } break;
1783                         default:
1784                                 if(*in >= 0 && *in <= 0x1F)
1785                                 {
1786                                         if(outsize >= 4)
1787                                         {
1788                                                 *out++ = '\\';
1789                                                 *out++ = '0' + ((*in & 0700) >> 6);
1790                                                 *out++ = '0' + ((*in & 0070) >> 3);
1791                                                 *out++ = '0' + ((*in & 0007));
1792                                                 outsize -= 4;
1793                                         }
1794                                 }
1795                                 else
1796                                 {
1797                                         if(outsize >= 1)
1798                                         {
1799                                                 *out++ = *in;
1800                                                 outsize -= 1;
1801                                         }
1802                                 }
1803                                 break;
1804                 }
1805                 ++in;
1806         }
1807 }
1808 void PRVM_PO_ParseString(char *out, const char *in, size_t outsize)
1809 {
1810         for(;;)
1811         {
1812                 switch(*in)
1813                 {
1814                         case 0:
1815                                 *out++ = 0;
1816                                 return;
1817                         case '\\':
1818                                 ++in;
1819                                 switch(*in)
1820                                 {
1821                                         case 'a': if(outsize > 0) { *out++ = '\a'; --outsize; } break;
1822                                         case 'b': if(outsize > 0) { *out++ = '\b'; --outsize; } break;
1823                                         case 't': if(outsize > 0) { *out++ = '\t'; --outsize; } break;
1824                                         case 'r': if(outsize > 0) { *out++ = '\r'; --outsize; } break;
1825                                         case 'n': if(outsize > 0) { *out++ = '\n'; --outsize; } break;
1826                                         case '\\': if(outsize > 0) { *out++ = '\\'; --outsize; } break;
1827                                         case '"': if(outsize > 0) { *out++ = '"'; --outsize; } break;
1828                                         case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7':
1829                                                 if(outsize > 0)
1830                                                         *out = *in - '0';
1831                                                 ++in;
1832                                                 if(*in >= '0' && *in <= '7')
1833                                                 {
1834                                                         if(outsize > 0)
1835                                                                 *out = (*out << 3) | (*in - '0');
1836                                                         ++in;
1837                                                 }
1838                                                 if(*in >= '0' && *in <= '7')
1839                                                 {
1840                                                         if(outsize > 0)
1841                                                                 *out = (*out << 3) | (*in - '0');
1842                                                         ++in;
1843                                                 }
1844                                                 --in;
1845                                                 if(outsize > 0)
1846                                                 {
1847                                                         ++out;
1848                                                         --outsize;
1849                                                 }
1850                                                 break;
1851                                         default:
1852                                                 if(outsize > 0) { *out++ = *in; --outsize; }
1853                                                 break;
1854                                 }
1855                                 break;
1856                         default:
1857                                 if(outsize > 0)
1858                                 {
1859                                         *out++ = *in;
1860                                         --outsize;
1861                                 }
1862                                 break;
1863                 }
1864                 ++in;
1865         }
1866 }
1867 po_t *PRVM_PO_Load(const char *filename, mempool_t *pool)
1868 {
1869         po_t *po;
1870         const char *p, *q;
1871         int mode;
1872         char inbuf[MAX_INPUTLINE];
1873         char decodedbuf[MAX_INPUTLINE];
1874         size_t decodedpos;
1875         int hashindex;
1876         po_string_t thisstr;
1877         const char *buf = (const char *) FS_LoadFile(filename, pool, true, NULL);
1878
1879         if(!buf)
1880                 return NULL;
1881
1882         po = Mem_Alloc(pool, sizeof(*po));
1883         memset(po, 0, sizeof(*po));
1884
1885         p = buf;
1886         while(*p)
1887         {
1888                 if(*p == '#')
1889                 {
1890                         // skip to newline
1891                         p = strchr(p, '\n');
1892                         if(!p)
1893                                 break;
1894                         ++p;
1895                         continue;
1896                 }
1897                 if(*p == '\r' || *p == '\n')
1898                 {
1899                         ++p;
1900                         continue;
1901                 }
1902                 if(!strncmp(p, "msgid \"", 7))
1903                 {
1904                         mode = 0;
1905                         p += 6;
1906                 }
1907                 else if(!strncmp(p, "msgstr \"", 8))
1908                 {
1909                         mode = 1;
1910                         p += 7;
1911                 }
1912                 else
1913                 {
1914                         p = strchr(p, '\n');
1915                         if(!p)
1916                                 break;
1917                         ++p;
1918                         continue;
1919                 }
1920                 decodedpos = 0;
1921                 while(*p == '"')
1922                 {
1923                         ++p;
1924                         q = strchr(p, '\n');
1925                         if(!q)
1926                                 break;
1927                         if(*(q-1) == '\r')
1928                                 --q;
1929                         if(*(q-1) != '"')
1930                                 break;
1931                         if(q - p >= (ssize_t) sizeof(inbuf))
1932                                 break;
1933                         strlcpy(inbuf, p, q - p); // not - 1, because this adds a NUL
1934                         PRVM_PO_ParseString(decodedbuf + decodedpos, inbuf, sizeof(decodedbuf) - decodedpos);
1935                         decodedpos += strlen(decodedbuf + decodedpos);
1936                         if(*q == '\r')
1937                                 ++q;
1938                         if(*q == '\n')
1939                                 ++q;
1940                         p = q;
1941                 }
1942                 if(mode == 0)
1943                 {
1944                         if(thisstr.key)
1945                                 Mem_Free(thisstr.key);
1946                         thisstr.key = Mem_Alloc(pool, decodedpos + 1);
1947                         memcpy(thisstr.key, decodedbuf, decodedpos + 1);
1948                 }
1949                 else if(decodedpos > 0 && thisstr.key) // skip empty translation results
1950                 {
1951                         thisstr.value = Mem_Alloc(pool, decodedpos + 1);
1952                         memcpy(thisstr.value, decodedbuf, decodedpos + 1);
1953                         hashindex = CRC_Block((const unsigned char *) thisstr.key, strlen(thisstr.key)) % PO_HASHSIZE;
1954                         thisstr.nextonhashchain = po->hashtable[hashindex];
1955                         po->hashtable[hashindex] = Mem_Alloc(pool, sizeof(thisstr));
1956                         memcpy(po->hashtable[hashindex], &thisstr, sizeof(thisstr));
1957                         memset(&thisstr, 0, sizeof(thisstr));
1958                 }
1959         }
1960
1961         Mem_Free((char *) buf);
1962         return po;
1963 }
1964 const char *PRVM_PO_Lookup(po_t *po, const char *str)
1965 {
1966         int hashindex = CRC_Block((const unsigned char *) str, strlen(str)) % PO_HASHSIZE;
1967         po_string_t *p = po->hashtable[hashindex];
1968         while(p)
1969         {
1970                 if(!strcmp(str, p->key))
1971                         return p->value;
1972                 p = p->nextonhashchain;
1973         }
1974         return NULL;
1975 }
1976 void PRVM_PO_Destroy(po_t *po)
1977 {
1978         int i;
1979         for(i = 0; i < PO_HASHSIZE; ++i)
1980         {
1981                 po_string_t *p = po->hashtable[i];
1982                 while(p)
1983                 {
1984                         po_string_t *q = p;
1985                         p = p->nextonhashchain;
1986                         Mem_Free(q->key);
1987                         Mem_Free(q->value);
1988                         Mem_Free(q);
1989                 }
1990         }
1991         Mem_Free(po);
1992 }
1993
1994 void PRVM_LeakTest(void);
1995 void PRVM_ResetProg(void)
1996 {
1997         PRVM_LeakTest();
1998         PRVM_GCALL(reset_cmd)();
1999         Mem_FreePool(&prog->progs_mempool);
2000         if(prog->po)
2001                 PRVM_PO_Destroy((po_t *) prog->po);
2002         memset(prog,0,sizeof(prvm_prog_t));
2003         prog->starttime = Sys_DoubleTime();
2004 }
2005
2006 /*
2007 ===============
2008 PRVM_LoadLNO
2009 ===============
2010 */
2011 void PRVM_LoadLNO( const char *progname ) {
2012         fs_offset_t filesize;
2013         unsigned char *lno;
2014         unsigned int *header;
2015         char filename[512];
2016
2017         FS_StripExtension( progname, filename, sizeof( filename ) );
2018         strlcat( filename, ".lno", sizeof( filename ) );
2019
2020         lno = FS_LoadFile( filename, tempmempool, false, &filesize );
2021         if( !lno ) {
2022                 return;
2023         }
2024
2025 /*
2026 <Spike>    SafeWrite (h, &lnotype, sizeof(int));
2027 <Spike>    SafeWrite (h, &version, sizeof(int));
2028 <Spike>    SafeWrite (h, &numglobaldefs, sizeof(int));
2029 <Spike>    SafeWrite (h, &numpr_globals, sizeof(int));
2030 <Spike>    SafeWrite (h, &numfielddefs, sizeof(int));
2031 <Spike>    SafeWrite (h, &numstatements, sizeof(int));
2032 <Spike>    SafeWrite (h, statement_linenums, numstatements*sizeof(int));
2033 */
2034         if( (unsigned) filesize < (6 + prog->progs->numstatements) * sizeof( int ) ) {
2035                 Mem_Free(lno);
2036                 return;
2037         }
2038
2039         header = (unsigned int *) lno;
2040         if( header[ 0 ] == *(unsigned int *) "LNOF" &&
2041                 LittleLong( header[ 1 ] ) == 1 &&
2042                 (unsigned int)LittleLong( header[ 2 ] ) == (unsigned int)prog->progs->numglobaldefs &&
2043                 (unsigned int)LittleLong( header[ 3 ] ) == (unsigned int)prog->progs->numglobals &&
2044                 (unsigned int)LittleLong( header[ 4 ] ) == (unsigned int)prog->progs->numfielddefs &&
2045                 (unsigned int)LittleLong( header[ 5 ] ) == (unsigned int)prog->progs->numstatements )
2046         {
2047                 prog->statement_linenums = (int *)Mem_Alloc(prog->progs_mempool, prog->progs->numstatements * sizeof( int ) );
2048                 memcpy( prog->statement_linenums, (int *) lno + 6, prog->progs->numstatements * sizeof( int ) );
2049         }
2050         Mem_Free( lno );
2051 }
2052
2053 /*
2054 ===============
2055 PRVM_LoadProgs
2056 ===============
2057 */
2058 void PRVM_LoadProgs (const char * filename, int numrequiredfunc, char **required_func, int numrequiredfields, prvm_required_field_t *required_field, int numrequiredglobals, char **required_global)
2059 {
2060         int i;
2061         dstatement_t *st;
2062         ddef_t *infielddefs;
2063         dfunction_t *dfunctions;
2064         fs_offset_t filesize;
2065
2066         if( prog->loaded ) {
2067                 PRVM_ERROR ("PRVM_LoadProgs: there is already a %s program loaded!", PRVM_NAME );
2068         }
2069
2070         prog->progs = (dprograms_t *)FS_LoadFile (filename, prog->progs_mempool, false, &filesize);
2071         if (prog->progs == NULL || filesize < (fs_offset_t)sizeof(dprograms_t))
2072                 PRVM_ERROR ("PRVM_LoadProgs: couldn't load %s for %s", filename, PRVM_NAME);
2073         // TODO bounds check header fields (e.g. numstatements), they must never go behind end of file
2074
2075         Con_DPrintf("%s programs occupy %iK.\n", PRVM_NAME, (int)(filesize/1024));
2076
2077         prog->filecrc = CRC_Block((unsigned char *)prog->progs, filesize);
2078
2079 // byte swap the header
2080         for (i = 0;i < (int) sizeof(*prog->progs) / 4;i++)
2081                 ((int *)prog->progs)[i] = LittleLong ( ((int *)prog->progs)[i] );
2082
2083         if (prog->progs->version != PROG_VERSION)
2084                 PRVM_ERROR ("%s: %s has wrong version number (%i should be %i)", PRVM_NAME, filename, prog->progs->version, PROG_VERSION);
2085         if (prog->progs->crc != prog->headercrc && prog->progs->crc != prog->headercrc2)
2086                 PRVM_ERROR ("%s: %s system vars have been modified (CRC of progs.dat systemvars %i != engine %i), progdefs.h is out of date", PRVM_NAME, filename, prog->progs->crc, prog->headercrc);
2087
2088         //prog->functions = (dfunction_t *)((unsigned char *)progs + progs->ofs_functions);
2089         dfunctions = (dfunction_t *)((unsigned char *)prog->progs + prog->progs->ofs_functions);
2090
2091         if (prog->progs->ofs_strings + prog->progs->numstrings >= (int)filesize)
2092                 PRVM_ERROR ("%s: %s strings go past end of file", PRVM_NAME, filename);
2093         prog->strings = (char *)prog->progs + prog->progs->ofs_strings;
2094         prog->stringssize = prog->progs->numstrings;
2095
2096         prog->numknownstrings = 0;
2097         prog->maxknownstrings = 0;
2098         prog->knownstrings = NULL;
2099         prog->knownstrings_freeable = NULL;
2100
2101         Mem_ExpandableArray_NewArray(&prog->stringbuffersarray, prog->progs_mempool, sizeof(prvm_stringbuffer_t), 64);
2102
2103         prog->globaldefs = (ddef_t *)((unsigned char *)prog->progs + prog->progs->ofs_globaldefs);
2104
2105         // we need to expand the fielddefs list to include all the engine fields,
2106         // so allocate a new place for it
2107         infielddefs = (ddef_t *)((unsigned char *)prog->progs + prog->progs->ofs_fielddefs);
2108         //                                                                                              ( + DPFIELDS                       )
2109         prog->fielddefs = (ddef_t *)Mem_Alloc(prog->progs_mempool, (prog->progs->numfielddefs + numrequiredfields) * sizeof(ddef_t));
2110
2111         prog->statements = (dstatement_t *)((unsigned char *)prog->progs + prog->progs->ofs_statements);
2112
2113         prog->statement_profile = (double *)Mem_Alloc(prog->progs_mempool, prog->progs->numstatements * sizeof(*prog->statement_profile));
2114
2115         //pr_global_struct = (globalvars_t *)((unsigned char *)progs + progs->ofs_globals);
2116         prog->globals.generic = (float *)((unsigned char *)prog->progs + prog->progs->ofs_globals);
2117
2118 // byte swap the lumps
2119         for (i=0 ; i<prog->progs->numstatements ; i++)
2120         {
2121                 prog->statements[i].op = LittleShort(prog->statements[i].op);
2122                 prog->statements[i].a = LittleShort(prog->statements[i].a);
2123                 prog->statements[i].b = LittleShort(prog->statements[i].b);
2124                 prog->statements[i].c = LittleShort(prog->statements[i].c);
2125         }
2126
2127         prog->functions = (mfunction_t *)Mem_Alloc(prog->progs_mempool, sizeof(mfunction_t) * prog->progs->numfunctions);
2128         for (i = 0;i < prog->progs->numfunctions;i++)
2129         {
2130                 prog->functions[i].first_statement = LittleLong (dfunctions[i].first_statement);
2131                 prog->functions[i].parm_start = LittleLong (dfunctions[i].parm_start);
2132                 prog->functions[i].s_name = LittleLong (dfunctions[i].s_name);
2133                 prog->functions[i].s_file = LittleLong (dfunctions[i].s_file);
2134                 prog->functions[i].numparms = LittleLong (dfunctions[i].numparms);
2135                 prog->functions[i].locals = LittleLong (dfunctions[i].locals);
2136                 memcpy(prog->functions[i].parm_size, dfunctions[i].parm_size, sizeof(dfunctions[i].parm_size));
2137                 if(prog->functions[i].first_statement >= prog->progs->numstatements)
2138                         PRVM_ERROR("PRVM_LoadProgs: out of bounds function statement (function %d) in %s", i, PRVM_NAME);
2139                 // TODO bounds check parm_start, s_name, s_file, numparms, locals, parm_size
2140         }
2141
2142         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
2143         {
2144                 prog->globaldefs[i].type = LittleShort (prog->globaldefs[i].type);
2145                 prog->globaldefs[i].ofs = LittleShort (prog->globaldefs[i].ofs);
2146                 prog->globaldefs[i].s_name = LittleLong (prog->globaldefs[i].s_name);
2147                 // TODO bounds check ofs, s_name
2148         }
2149
2150         // copy the progs fields to the new fields list
2151         for (i = 0;i < prog->progs->numfielddefs;i++)
2152         {
2153                 prog->fielddefs[i].type = LittleShort (infielddefs[i].type);
2154                 if (prog->fielddefs[i].type & DEF_SAVEGLOBAL)
2155                         PRVM_ERROR ("PRVM_LoadProgs: prog->fielddefs[i].type & DEF_SAVEGLOBAL in %s", PRVM_NAME);
2156                 prog->fielddefs[i].ofs = LittleShort (infielddefs[i].ofs);
2157                 prog->fielddefs[i].s_name = LittleLong (infielddefs[i].s_name);
2158                 // TODO bounds check ofs, s_name
2159         }
2160
2161         // append the required fields
2162         for (i = 0;i < (int) numrequiredfields;i++)
2163         {
2164                 prog->fielddefs[prog->progs->numfielddefs].type = required_field[i].type;
2165                 prog->fielddefs[prog->progs->numfielddefs].ofs = prog->progs->entityfields;
2166                 prog->fielddefs[prog->progs->numfielddefs].s_name = PRVM_SetEngineString(required_field[i].name);
2167                 // TODO bounds check ofs, s_name
2168                 if (prog->fielddefs[prog->progs->numfielddefs].type == ev_vector)
2169                         prog->progs->entityfields += 3;
2170                 else
2171                         prog->progs->entityfields++;
2172                 prog->progs->numfielddefs++;
2173         }
2174         prog->entityfields = prog->progs->entityfields;
2175
2176         // check required functions
2177         for(i=0 ; i < numrequiredfunc ; i++)
2178                 if(PRVM_ED_FindFunction(required_func[i]) == 0)
2179                         PRVM_ERROR("%s: %s not found in %s",PRVM_NAME, required_func[i], filename);
2180
2181         // check required globals
2182         for(i=0 ; i < numrequiredglobals ; i++)
2183                 if(PRVM_ED_FindGlobal(required_global[i]) == 0)
2184                         PRVM_ERROR("%s: %s not found in %s",PRVM_NAME, required_global[i], filename);
2185
2186         for (i=0 ; i<prog->progs->numglobals ; i++)
2187                 ((int *)prog->globals.generic)[i] = LittleLong (((int *)prog->globals.generic)[i]);
2188
2189         // LordHavoc: bounds check anything static
2190         for (i = 0,st = prog->statements;i < prog->progs->numstatements;i++,st++)
2191         {
2192                 switch (st->op)
2193                 {
2194                 case OP_IF:
2195                 case OP_IFNOT:
2196                         if ((unsigned short) st->a >= prog->progs->numglobals || st->b + i < 0 || st->b + i >= prog->progs->numstatements)
2197                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds IF/IFNOT (statement %d) in %s", i, PRVM_NAME);
2198                         break;
2199                 case OP_GOTO:
2200                         if (st->a + i < 0 || st->a + i >= prog->progs->numstatements)
2201                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds GOTO (statement %d) in %s", i, PRVM_NAME);
2202                         break;
2203                 // global global global
2204                 case OP_ADD_F:
2205                 case OP_ADD_V:
2206                 case OP_SUB_F:
2207                 case OP_SUB_V:
2208                 case OP_MUL_F:
2209                 case OP_MUL_V:
2210                 case OP_MUL_FV:
2211                 case OP_MUL_VF:
2212                 case OP_DIV_F:
2213                 case OP_BITAND:
2214                 case OP_BITOR:
2215                 case OP_GE:
2216                 case OP_LE:
2217                 case OP_GT:
2218                 case OP_LT:
2219                 case OP_AND:
2220                 case OP_OR:
2221                 case OP_EQ_F:
2222                 case OP_EQ_V:
2223                 case OP_EQ_S:
2224                 case OP_EQ_E:
2225                 case OP_EQ_FNC:
2226                 case OP_NE_F:
2227                 case OP_NE_V:
2228                 case OP_NE_S:
2229                 case OP_NE_E:
2230                 case OP_NE_FNC:
2231                 case OP_ADDRESS:
2232                 case OP_LOAD_F:
2233                 case OP_LOAD_FLD:
2234                 case OP_LOAD_ENT:
2235                 case OP_LOAD_S:
2236                 case OP_LOAD_FNC:
2237                 case OP_LOAD_V:
2238                         if ((unsigned short) st->a >= prog->progs->numglobals || (unsigned short) st->b >= prog->progs->numglobals || (unsigned short) st->c >= prog->progs->numglobals)
2239                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d)", i);
2240                         break;
2241                 // global none global
2242                 case OP_NOT_F:
2243                 case OP_NOT_V:
2244                 case OP_NOT_S:
2245                 case OP_NOT_FNC:
2246                 case OP_NOT_ENT:
2247                         if ((unsigned short) st->a >= prog->progs->numglobals || (unsigned short) st->c >= prog->progs->numglobals)
2248                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d) in %s", i, PRVM_NAME);
2249                         break;
2250                 // 2 globals
2251                 case OP_STOREP_F:
2252                 case OP_STOREP_ENT:
2253                 case OP_STOREP_FLD:
2254                 case OP_STOREP_S:
2255                 case OP_STOREP_FNC:
2256                 case OP_STORE_F:
2257                 case OP_STORE_ENT:
2258                 case OP_STORE_FLD:
2259                 case OP_STORE_S:
2260                 case OP_STORE_FNC:
2261                 case OP_STATE:
2262                 case OP_STOREP_V:
2263                 case OP_STORE_V:
2264                         if ((unsigned short) st->a >= prog->progs->numglobals || (unsigned short) st->b >= prog->progs->numglobals)
2265                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d) in %s", i, PRVM_NAME);
2266                         break;
2267                 // 1 global
2268                 case OP_CALL0:
2269                 case OP_CALL1:
2270                 case OP_CALL2:
2271                 case OP_CALL3:
2272                 case OP_CALL4:
2273                 case OP_CALL5:
2274                 case OP_CALL6:
2275                 case OP_CALL7:
2276                 case OP_CALL8:
2277                 case OP_DONE:
2278                 case OP_RETURN:
2279                         if ((unsigned short) st->a >= prog->progs->numglobals)
2280                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d) in %s", i, PRVM_NAME);
2281                         break;
2282                 default:
2283                         Con_DPrintf("PRVM_LoadProgs: unknown opcode %d at statement %d in %s\n", st->op, i, PRVM_NAME);
2284                         break;
2285                 }
2286         }
2287         if(prog->progs->numstatements < 1)
2288         {
2289                 PRVM_ERROR("PRVM_LoadProgs: empty program in %s", PRVM_NAME);
2290         }
2291         else switch(prog->statements[prog->progs->numstatements - 1].op)
2292         {
2293                 case OP_RETURN:
2294                 case OP_GOTO:
2295                 case OP_DONE:
2296                         break;
2297                 default:
2298                         PRVM_ERROR("PRVM_LoadProgs: program may fall off the edge (does not end with RETURN, GOTO or DONE) in %s", PRVM_NAME);
2299                         break;
2300         }
2301
2302         PRVM_LoadLNO(filename);
2303
2304         PRVM_Init_Exec();
2305
2306         if(*prvm_language.string && !strcmp(PRVM_NAME, "client"))
2307         // in CSQC we really shouldn't be able to change how stuff works... sorry for now
2308         // later idea: include a list of authorized .po file checksums with the csprogs
2309         {
2310                 if(!strcmp(prvm_language.string, "dump"))
2311                 {
2312                         qfile_t *f = FS_OpenRealFile(va("%s.%s.po", filename, prvm_language.string), "w", false);
2313                         Con_Printf("Dumping to %s.%s.po\n", filename, prvm_language.string);
2314                         if(f)
2315                         {
2316                                 for (i=0 ; i<prog->progs->numglobaldefs ; i++)
2317                                 {
2318                                         const char *name;
2319                                         name = PRVM_GetString(prog->globaldefs[i].s_name);
2320                                         if(!name || strncmp(name, "notranslate_", 12))
2321                                         if((prog->globaldefs[i].type & ~DEF_SAVEGLOBAL) == ev_string)
2322                                         {
2323                                                 prvm_eval_t *val = (prvm_eval_t *)(prog->globals.generic + prog->globaldefs[i].ofs);
2324                                                 const char *value = PRVM_GetString(val->string);
2325                                                 if(*value)
2326                                                 {
2327                                                         char buf[MAX_INPUTLINE];
2328                                                         PRVM_PO_UnparseString(buf, value, sizeof(buf));
2329                                                         FS_Printf(f, "msgid \"%s\"\nmsgstr \"\"\n\n", buf);
2330                                                 }
2331                                         }
2332                                 }
2333                                 FS_Close(f);
2334                         }
2335                 }
2336                 else
2337                 {
2338                         po_t *po = PRVM_PO_Load(va("%s.%s.po", filename, prvm_language.string), prog->progs_mempool);
2339                         if(po)
2340                         {
2341                                 for (i=0 ; i<prog->progs->numglobaldefs ; i++)
2342                                 {
2343                                         const char *name;
2344                                         name = PRVM_GetString(prog->globaldefs[i].s_name);
2345                                         if(!name || strncmp(name, "notranslate_", 12))
2346                                         if((prog->globaldefs[i].type & ~DEF_SAVEGLOBAL) == ev_string)
2347                                         {
2348                                                 prvm_eval_t *val = (prvm_eval_t *)(prog->globals.generic + prog->globaldefs[i].ofs);
2349                                                 const char *value = PRVM_GetString(val->string);
2350                                                 if(*value)
2351                                                 {
2352                                                         value = PRVM_PO_Lookup(po, value);
2353                                                         if(value)
2354                                                                 val->string = PRVM_SetEngineString(value);
2355                                                 }
2356                                         }
2357                                 }
2358                         }
2359                 }
2360         }
2361
2362         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
2363         {
2364                 const char *name;
2365                 name = PRVM_GetString(prog->globaldefs[i].s_name);
2366                 //Con_Printf("found var %s\n", name);
2367                 if(name
2368                         && !strncmp(name, "autocvar_", 9)
2369                         && !(strlen(name) > 1 && name[strlen(name)-2] == '_' && (name[strlen(name)-1] == 'x' || name[strlen(name)-1] == 'y' || name[strlen(name)-1] == 'z'))
2370                 )
2371                 {
2372                         prvm_eval_t *val = (prvm_eval_t *)(prog->globals.generic + prog->globaldefs[i].ofs);
2373                         cvar_t *cvar = Cvar_FindVar(name + 9);
2374                         //Con_Printf("PRVM_LoadProgs: autocvar global %s in %s, processing...\n", name, PRVM_NAME);
2375                         if(!cvar)
2376                         {
2377                                 const char *value;
2378                                 char buf[64];
2379                                 Con_Printf("PRVM_LoadProgs: no cvar for autocvar global %s in %s, creating...\n", name, PRVM_NAME);
2380                                 switch(prog->globaldefs[i].type & ~DEF_SAVEGLOBAL)
2381                                 {
2382                                         case ev_float:
2383                                                 if((float)((int)(val->_float)) == val->_float)
2384                                                         dpsnprintf(buf, sizeof(buf), "%i", (int)(val->_float));
2385                                                 else
2386                                                         dpsnprintf(buf, sizeof(buf), "%f", val->_float);
2387                                                 value = buf;
2388                                                 break;
2389                                         case ev_vector:
2390                                                 dpsnprintf(buf, sizeof(buf), "%f %f %f", val->vector[0], val->vector[1], val->vector[2]); value = buf;
2391                                                 break;
2392                                         case ev_string:
2393                                                 value = PRVM_GetString(val->string);
2394                                                 break;
2395                                         default:
2396                                                 Con_Printf("PRVM_LoadProgs: invalid type of autocvar global %s in %s\n", name, PRVM_NAME);
2397                                                 goto fail;
2398                                 }
2399                                 cvar = Cvar_Get(name + 9, value, 0, NULL);
2400                                 if((prog->globaldefs[i].type & ~DEF_SAVEGLOBAL) == ev_string)
2401                                 {
2402                                         val->string = PRVM_SetEngineString(cvar->string);
2403                                         cvar->globaldefindex_stringno[prog - prog_list] = val->string;
2404                                 }
2405                                 if(!cvar)
2406                                         PRVM_ERROR("PRVM_LoadProgs: could not create cvar for autocvar global %s in %s", name, PRVM_NAME);
2407                                 cvar->globaldefindex_progid[prog - prog_list] = prog->id;
2408                                 cvar->globaldefindex[prog - prog_list] = i;
2409                         }
2410                         else if((cvar->flags & CVAR_PRIVATE) == 0)
2411                         {
2412                                 // MUST BE SYNCED WITH cvar.c Cvar_Set
2413                                 int j;
2414                                 const char *s;
2415                                 switch(prog->globaldefs[i].type & ~DEF_SAVEGLOBAL)
2416                                 {
2417                                         case ev_float:
2418                                                 val->_float = cvar->value;
2419                                                 break;
2420                                         case ev_vector:
2421                                                 s = cvar->string;
2422                                                 VectorClear(val->vector);
2423                                                 for (j = 0;j < 3;j++)
2424                                                 {
2425                                                         while (*s && ISWHITESPACE(*s))
2426                                                                 s++;
2427                                                         if (!*s)
2428                                                                 break;
2429                                                         val->vector[j] = atof(s);
2430                                                         while (!ISWHITESPACE(*s))
2431                                                                 s++;
2432                                                         if (!*s)
2433                                                                 break;
2434                                                 }
2435                                                 break;
2436                                         case ev_string:
2437                                                 val->string = PRVM_SetEngineString(cvar->string);
2438                                                 cvar->globaldefindex_stringno[prog - prog_list] = val->string;
2439                                                 break;
2440                                         default:
2441                                                 Con_Printf("PRVM_LoadProgs: invalid type of autocvar global %s in %s\n", name, PRVM_NAME);
2442                                                 goto fail;
2443                                 }
2444                                 cvar->globaldefindex_progid[prog - prog_list] = prog->id;
2445                                 cvar->globaldefindex[prog - prog_list] = i;
2446                         }
2447                         else
2448                                 Con_Printf("PRVM_LoadProgs: private cvar for autocvar global %s in %s\n", name, PRVM_NAME);
2449                 }
2450 fail:
2451                 ;
2452         }
2453
2454         prog->loaded = TRUE;
2455
2456         // set flags & ddef_ts in prog
2457
2458         prog->flag = 0;
2459
2460         PRVM_FindOffsets();
2461
2462         PRVM_GCALL(init_cmd)();
2463
2464         // init mempools
2465         PRVM_MEM_Alloc();
2466 }
2467
2468
2469 void PRVM_Fields_f (void)
2470 {
2471         int i, j, ednum, used, usedamount;
2472         int *counts;
2473         char tempstring[MAX_INPUTLINE], tempstring2[260];
2474         const char *name;
2475         prvm_edict_t *ed;
2476         ddef_t *d;
2477         int *v;
2478
2479         // TODO
2480         /*
2481         if (!sv.active)
2482         {
2483                 Con_Print("no progs loaded\n");
2484                 return;
2485         }
2486         */
2487
2488         if(Cmd_Argc() != 2)
2489         {
2490                 Con_Print("prvm_fields <program name>\n");
2491                 return;
2492         }
2493
2494         PRVM_Begin;
2495         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
2496                 return;
2497
2498         counts = (int *)Mem_Alloc(tempmempool, prog->progs->numfielddefs * sizeof(int));
2499         for (ednum = 0;ednum < prog->max_edicts;ednum++)
2500         {
2501                 ed = PRVM_EDICT_NUM(ednum);
2502                 if (ed->priv.required->free)
2503                         continue;
2504                 for (i = 1;i < prog->progs->numfielddefs;i++)
2505                 {
2506                         d = &prog->fielddefs[i];
2507                         name = PRVM_GetString(d->s_name);
2508                         if (name[strlen(name)-2] == '_')
2509                                 continue;       // skip _x, _y, _z vars
2510                         v = (int *)(ed->fields.vp + d->ofs);
2511                         // if the value is still all 0, skip the field
2512                         for (j = 0;j < prvm_type_size[d->type & ~DEF_SAVEGLOBAL];j++)
2513                         {
2514                                 if (v[j])
2515                                 {
2516                                         counts[i]++;
2517                                         break;
2518                                 }
2519                         }
2520                 }
2521         }
2522         used = 0;
2523         usedamount = 0;
2524         tempstring[0] = 0;
2525         for (i = 0;i < prog->progs->numfielddefs;i++)
2526         {
2527                 d = &prog->fielddefs[i];
2528                 name = PRVM_GetString(d->s_name);
2529                 if (name[strlen(name)-2] == '_')
2530                         continue;       // skip _x, _y, _z vars
2531                 switch(d->type & ~DEF_SAVEGLOBAL)
2532                 {
2533                 case ev_string:
2534                         strlcat(tempstring, "string   ", sizeof(tempstring));
2535                         break;
2536                 case ev_entity:
2537                         strlcat(tempstring, "entity   ", sizeof(tempstring));
2538                         break;
2539                 case ev_function:
2540                         strlcat(tempstring, "function ", sizeof(tempstring));
2541                         break;
2542                 case ev_field:
2543                         strlcat(tempstring, "field    ", sizeof(tempstring));
2544                         break;
2545                 case ev_void:
2546                         strlcat(tempstring, "void     ", sizeof(tempstring));
2547                         break;
2548                 case ev_float:
2549                         strlcat(tempstring, "float    ", sizeof(tempstring));
2550                         break;
2551                 case ev_vector:
2552                         strlcat(tempstring, "vector   ", sizeof(tempstring));
2553                         break;
2554                 case ev_pointer:
2555                         strlcat(tempstring, "pointer  ", sizeof(tempstring));
2556                         break;
2557                 default:
2558                         dpsnprintf (tempstring2, sizeof(tempstring2), "bad type %i ", d->type & ~DEF_SAVEGLOBAL);
2559                         strlcat(tempstring, tempstring2, sizeof(tempstring));
2560                         break;
2561                 }
2562                 if (strlen(name) > sizeof(tempstring2)-4)
2563                 {
2564                         memcpy (tempstring2, name, sizeof(tempstring2)-4);
2565                         tempstring2[sizeof(tempstring2)-4] = tempstring2[sizeof(tempstring2)-3] = tempstring2[sizeof(tempstring2)-2] = '.';
2566                         tempstring2[sizeof(tempstring2)-1] = 0;
2567                         name = tempstring2;
2568                 }
2569                 strlcat(tempstring, name, sizeof(tempstring));
2570                 for (j = (int)strlen(name);j < 25;j++)
2571                         strlcat(tempstring, " ", sizeof(tempstring));
2572                 dpsnprintf(tempstring2, sizeof(tempstring2), "%5d", counts[i]);
2573                 strlcat(tempstring, tempstring2, sizeof(tempstring));
2574                 strlcat(tempstring, "\n", sizeof(tempstring));
2575                 if (strlen(tempstring) >= sizeof(tempstring)/2)
2576                 {
2577                         Con_Print(tempstring);
2578                         tempstring[0] = 0;
2579                 }
2580                 if (counts[i])
2581                 {
2582                         used++;
2583                         usedamount += prvm_type_size[d->type & ~DEF_SAVEGLOBAL];
2584                 }
2585         }
2586         Mem_Free(counts);
2587         Con_Printf("%s: %i entity fields (%i in use), totalling %i bytes per edict (%i in use), %i edicts allocated, %i bytes total spent on edict fields (%i needed)\n", PRVM_NAME, prog->progs->entityfields, used, prog->progs->entityfields * 4, usedamount * 4, prog->max_edicts, prog->progs->entityfields * 4 * prog->max_edicts, usedamount * 4 * prog->max_edicts);
2588
2589         PRVM_End;
2590 }
2591
2592 void PRVM_Globals_f (void)
2593 {
2594         int i;
2595         const char *wildcard;
2596         int numculled;
2597                 numculled = 0;
2598         // TODO
2599         /*if (!sv.active)
2600         {
2601                 Con_Print("no progs loaded\n");
2602                 return;
2603         }*/
2604         if(Cmd_Argc () < 2 || Cmd_Argc() > 3)
2605         {
2606                 Con_Print("prvm_globals <program name> <optional name wildcard>\n");
2607                 return;
2608         }
2609
2610         PRVM_Begin;
2611         if(!PRVM_SetProgFromString (Cmd_Argv (1)))
2612                 return;
2613
2614         if( Cmd_Argc() == 3)
2615                 wildcard = Cmd_Argv(2);
2616         else
2617                 wildcard = NULL;
2618
2619         Con_Printf("%s :", PRVM_NAME);
2620
2621         for (i = 0;i < prog->progs->numglobaldefs;i++)
2622         {
2623                 if(wildcard)
2624                         if( !matchpattern( PRVM_GetString(prog->globaldefs[i].s_name), wildcard, 1) )
2625                         {
2626                                 numculled++;
2627                                 continue;
2628                         }
2629                 Con_Printf("%s\n", PRVM_GetString(prog->globaldefs[i].s_name));
2630         }
2631         Con_Printf("%i global variables, %i culled, totalling %i bytes\n", prog->progs->numglobals, numculled, prog->progs->numglobals * 4);
2632
2633         PRVM_End;
2634 }
2635
2636 /*
2637 ===============
2638 PRVM_Global
2639 ===============
2640 */
2641 void PRVM_Global_f(void)
2642 {
2643         ddef_t *global;
2644         if( Cmd_Argc() != 3 ) {
2645                 Con_Printf( "prvm_global <program name> <global name>\n" );
2646                 return;
2647         }
2648
2649         PRVM_Begin;
2650         if( !PRVM_SetProgFromString( Cmd_Argv(1) ) )
2651                 return;
2652
2653         global = PRVM_ED_FindGlobal( Cmd_Argv(2) );
2654         if( !global )
2655                 Con_Printf( "No global '%s' in %s!\n", Cmd_Argv(2), Cmd_Argv(1) );
2656         else
2657                 Con_Printf( "%s: %s\n", Cmd_Argv(2), PRVM_ValueString( (etype_t)global->type, (prvm_eval_t *) &prog->globals.generic[ global->ofs ] ) );
2658         PRVM_End;
2659 }
2660
2661 /*
2662 ===============
2663 PRVM_GlobalSet
2664 ===============
2665 */
2666 void PRVM_GlobalSet_f(void)
2667 {
2668         ddef_t *global;
2669         if( Cmd_Argc() != 4 ) {
2670                 Con_Printf( "prvm_globalset <program name> <global name> <value>\n" );
2671                 return;
2672         }
2673
2674         PRVM_Begin;
2675         if( !PRVM_SetProgFromString( Cmd_Argv(1) ) )
2676                 return;
2677
2678         global = PRVM_ED_FindGlobal( Cmd_Argv(2) );
2679         if( !global )
2680                 Con_Printf( "No global '%s' in %s!\n", Cmd_Argv(2), Cmd_Argv(1) );
2681         else
2682                 PRVM_ED_ParseEpair( NULL, global, Cmd_Argv(3), true );
2683         PRVM_End;
2684 }
2685
2686 /*
2687 ===============
2688 PRVM_Init
2689 ===============
2690 */
2691 void PRVM_Init (void)
2692 {
2693         Cmd_AddCommand ("prvm_edict", PRVM_ED_PrintEdict_f, "print all data about an entity number in the selected VM (server, client, menu)");
2694         Cmd_AddCommand ("prvm_edicts", PRVM_ED_PrintEdicts_f, "prints all data about all entities in the selected VM (server, client, menu)");
2695         Cmd_AddCommand ("prvm_edictcount", PRVM_ED_Count_f, "prints number of active entities in the selected VM (server, client, menu)");
2696         Cmd_AddCommand ("prvm_profile", PRVM_Profile_f, "prints execution statistics about the most used QuakeC functions in the selected VM (server, client, menu)");
2697         Cmd_AddCommand ("prvm_childprofile", PRVM_ChildProfile_f, "prints execution statistics about the most used QuakeC functions in the selected VM (server, client, menu), sorted by time taken in function with child calls");
2698         Cmd_AddCommand ("prvm_callprofile", PRVM_CallProfile_f, "prints execution statistics about the most time consuming QuakeC calls from the engine in the selected VM (server, client, menu)");
2699         Cmd_AddCommand ("prvm_fields", PRVM_Fields_f, "prints usage statistics on properties (how many entities have non-zero values) in the selected VM (server, client, menu)");
2700         Cmd_AddCommand ("prvm_globals", PRVM_Globals_f, "prints all global variables in the selected VM (server, client, menu)");
2701         Cmd_AddCommand ("prvm_global", PRVM_Global_f, "prints value of a specified global variable in the selected VM (server, client, menu)");
2702         Cmd_AddCommand ("prvm_globalset", PRVM_GlobalSet_f, "sets value of a specified global variable in the selected VM (server, client, menu)");
2703         Cmd_AddCommand ("prvm_edictset", PRVM_ED_EdictSet_f, "changes value of a specified property of a specified entity in the selected VM (server, client, menu)");
2704         Cmd_AddCommand ("prvm_edictget", PRVM_ED_EdictGet_f, "retrieves the value of a specified property of a specified entity in the selected VM (server, client menu) into a cvar or to the console");
2705         Cmd_AddCommand ("prvm_globalget", PRVM_ED_GlobalGet_f, "retrieves the value of a specified global variable in the selected VM (server, client menu) into a cvar or to the console");
2706         Cmd_AddCommand ("prvm_printfunction", PRVM_PrintFunction_f, "prints a disassembly (QuakeC instructions) of the specified function in the selected VM (server, client, menu)");
2707         Cmd_AddCommand ("cl_cmd", PRVM_GameCommand_Client_f, "calls the client QC function GameCommand with the supplied string as argument");
2708         Cmd_AddCommand ("menu_cmd", PRVM_GameCommand_Menu_f, "calls the menu QC function GameCommand with the supplied string as argument");
2709         Cmd_AddCommand ("sv_cmd", PRVM_GameCommand_Server_f, "calls the server QC function GameCommand with the supplied string as argument");
2710
2711         // COMMANDLINEOPTION: PRVM: -noboundscheck disables the bounds checks (security hole if CSQC is in use!)
2712         prvm_boundscheck = !COM_CheckParm("-noboundscheck");
2713
2714         Cvar_RegisterVariable (&prvm_language);
2715         Cvar_RegisterVariable (&prvm_traceqc);
2716         Cvar_RegisterVariable (&prvm_statementprofiling);
2717         Cvar_RegisterVariable (&prvm_backtraceforwarnings);
2718         Cvar_RegisterVariable (&prvm_leaktest);
2719         Cvar_RegisterVariable (&prvm_leaktest_ignore_classnames);
2720         Cvar_RegisterVariable (&prvm_errordump);
2721         Cvar_RegisterVariable (&prvm_reuseedicts_startuptime);
2722         Cvar_RegisterVariable (&prvm_reuseedicts_neverinsameframe);
2723
2724         // COMMANDLINEOPTION: PRVM: -norunaway disables the runaway loop check (it might be impossible to exit DarkPlaces if used!)
2725         prvm_runawaycheck = !COM_CheckParm("-norunaway");
2726
2727         //VM_Cmd_Init();
2728 }
2729
2730 /*
2731 ===============
2732 PRVM_InitProg
2733 ===============
2734 */
2735 void PRVM_InitProg(int prognr)
2736 {
2737         static unsigned int progid = 0;
2738
2739         if(prognr < 0 || prognr >= PRVM_MAXPROGS)
2740                 Sys_Error("PRVM_InitProg: Invalid program number %i",prognr);
2741
2742         prog = &prog_list[prognr];
2743
2744         if(prog->loaded)
2745                 PRVM_ResetProg();
2746
2747         memset(prog, 0, sizeof(prvm_prog_t));
2748         prog->starttime = Sys_DoubleTime();
2749         prog->id = ++progid;
2750
2751         prog->error_cmd = Host_Error;
2752         prog->leaktest_active = prvm_leaktest.integer != 0;
2753 }
2754
2755 int PRVM_GetProgNr(void)
2756 {
2757         return prog - prog_list;
2758 }
2759
2760 void *_PRVM_Alloc(size_t buffersize, const char *filename, int fileline)
2761 {
2762         return _Mem_Alloc(prog->progs_mempool, NULL, buffersize, 16, filename, fileline);
2763 }
2764
2765 void _PRVM_Free(void *buffer, const char *filename, int fileline)
2766 {
2767         _Mem_Free(buffer, filename, fileline);
2768 }
2769
2770 void _PRVM_FreeAll(const char *filename, int fileline)
2771 {
2772         prog->progs = NULL;
2773         prog->fielddefs = NULL;
2774         prog->functions = NULL;
2775         _Mem_EmptyPool(prog->progs_mempool, filename, fileline);
2776 }
2777
2778 // LordHavoc: turned PRVM_EDICT_NUM into a #define for speed reasons
2779 unsigned int PRVM_EDICT_NUM_ERROR(unsigned int n, char *filename, int fileline)
2780 {
2781         PRVM_ERROR ("PRVM_EDICT_NUM: %s: bad number %i (called at %s:%i)", PRVM_NAME, n, filename, fileline);
2782         return 0;
2783 }
2784
2785 sizebuf_t vm_tempstringsbuf;
2786
2787 const char *PRVM_GetString(int num)
2788 {
2789         if (num >= 0)
2790         {
2791                 if (num < prog->stringssize)
2792                         return prog->strings + num;
2793                 else
2794 #if 1
2795                 if (num <= prog->stringssize + vm_tempstringsbuf.maxsize)
2796                 {
2797                         num -= prog->stringssize;
2798                         if (num < vm_tempstringsbuf.cursize)
2799                                 return (char *)vm_tempstringsbuf.data + num;
2800                         else
2801                         {
2802                                 VM_Warning("PRVM_GetString: Invalid temp-string offset (%i >= %i vm_tempstringsbuf.cursize)\n", num, vm_tempstringsbuf.cursize);
2803                                 return "";
2804                         }
2805                 }
2806                 else
2807 #endif
2808                 {
2809                         VM_Warning("PRVM_GetString: Invalid constant-string offset (%i >= %i prog->stringssize)\n", num, prog->stringssize);
2810                         return "";
2811                 }
2812         }
2813         else
2814         {
2815                 num = -1 - num;
2816 #if 0
2817                 if (num >= (1<<30))
2818                 {
2819                         // special range reserved for tempstrings
2820                         num -= (1<<30);
2821                         if (num < vm_tempstringsbuf.cursize)
2822                                 return (char *)vm_tempstringsbuf.data + num;
2823                         else
2824                         {
2825                                 VM_Warning("PRVM_GetString: Invalid temp-string offset (%i >= %i vm_tempstringsbuf.cursize)\n", num, vm_tempstringsbuf.cursize);
2826                                 return "";
2827                         }
2828                 }
2829                 else
2830 #endif
2831                 if (num < prog->numknownstrings)
2832                 {
2833                         if (!prog->knownstrings[num])
2834                         {
2835                                 VM_Warning("PRVM_GetString: Invalid zone-string offset (%i has been freed)\n", num);
2836                                 return "";
2837                         }
2838                         return prog->knownstrings[num];
2839                 }
2840                 else
2841                 {
2842                         VM_Warning("PRVM_GetString: Invalid zone-string offset (%i >= %i)\n", num, prog->numknownstrings);
2843                         return "";
2844                 }
2845         }
2846 }
2847
2848 const char *PRVM_ChangeEngineString(int i, const char *s)
2849 {
2850         const char *old;
2851         i = -1 - i;
2852         if(i < 0 || i >= prog->numknownstrings)
2853                 PRVM_ERROR("PRVM_ChangeEngineString: s is not an engine string");
2854         old = prog->knownstrings[i];
2855         prog->knownstrings[i] = s;
2856         return old;
2857 }
2858
2859 int PRVM_SetEngineString(const char *s)
2860 {
2861         int i;
2862         if (!s)
2863                 return 0;
2864         if (s >= prog->strings && s <= prog->strings + prog->stringssize)
2865                 PRVM_ERROR("PRVM_SetEngineString: s in prog->strings area");
2866         // if it's in the tempstrings area, use a reserved range
2867         // (otherwise we'd get millions of useless string offsets cluttering the database)
2868         if (s >= (char *)vm_tempstringsbuf.data && s < (char *)vm_tempstringsbuf.data + vm_tempstringsbuf.maxsize)
2869 #if 1
2870                 return prog->stringssize + (s - (char *)vm_tempstringsbuf.data);
2871 #else
2872                 return -1 - ((1<<30) + (s - (char *)vm_tempstringsbuf.data));
2873 #endif
2874         // see if it's a known string address
2875         for (i = 0;i < prog->numknownstrings;i++)
2876                 if (prog->knownstrings[i] == s)
2877                         return -1 - i;
2878         // new unknown engine string
2879         if (developer.integer >= 200)
2880                 Con_Printf("new engine string %p = \"%s\"\n", s, s);
2881         for (i = prog->firstfreeknownstring;i < prog->numknownstrings;i++)
2882                 if (!prog->knownstrings[i])
2883                         break;
2884         if (i >= prog->numknownstrings)
2885         {
2886                 if (i >= prog->maxknownstrings)
2887                 {
2888                         const char **oldstrings = prog->knownstrings;
2889                         const unsigned char *oldstrings_freeable = prog->knownstrings_freeable;
2890                         const char **oldstrings_origin = prog->knownstrings_origin;
2891                         prog->maxknownstrings += 128;
2892                         prog->knownstrings = (const char **)PRVM_Alloc(prog->maxknownstrings * sizeof(char *));
2893                         prog->knownstrings_freeable = (unsigned char *)PRVM_Alloc(prog->maxknownstrings * sizeof(unsigned char));
2894                         if(prog->leaktest_active)
2895                                 prog->knownstrings_origin = (const char **)PRVM_Alloc(prog->maxknownstrings * sizeof(char *));
2896                         if (prog->numknownstrings)
2897                         {
2898                                 memcpy((char **)prog->knownstrings, oldstrings, prog->numknownstrings * sizeof(char *));
2899                                 memcpy((char **)prog->knownstrings_freeable, oldstrings_freeable, prog->numknownstrings * sizeof(unsigned char));
2900                                 if(prog->leaktest_active)
2901                                         memcpy((char **)prog->knownstrings_origin, oldstrings_origin, prog->numknownstrings * sizeof(char *));
2902                         }
2903                 }
2904                 prog->numknownstrings++;
2905         }
2906         prog->firstfreeknownstring = i + 1;
2907         prog->knownstrings[i] = s;
2908         prog->knownstrings_freeable[i] = false;
2909         if(prog->leaktest_active)
2910                 prog->knownstrings_origin[i] = NULL;
2911         return -1 - i;
2912 }
2913
2914 // temp string handling
2915
2916 // all tempstrings go into this buffer consecutively, and it is reset
2917 // whenever PRVM_ExecuteProgram returns to the engine
2918 // (technically each PRVM_ExecuteProgram call saves the cursize value and
2919 //  restores it on return, so multiple recursive calls can share the same
2920 //  buffer)
2921 // the buffer size is automatically grown as needed
2922
2923 int PRVM_SetTempString(const char *s)
2924 {
2925         int size;
2926         char *t;
2927         if (!s)
2928                 return 0;
2929         size = (int)strlen(s) + 1;
2930         if (developer.integer >= 300)
2931                 Con_Printf("PRVM_SetTempString: cursize %i, size %i\n", vm_tempstringsbuf.cursize, size);
2932         if (vm_tempstringsbuf.maxsize < vm_tempstringsbuf.cursize + size)
2933         {
2934                 sizebuf_t old = vm_tempstringsbuf;
2935                 if (vm_tempstringsbuf.cursize + size >= 1<<28)
2936                         PRVM_ERROR("PRVM_SetTempString: ran out of tempstring memory!  (refusing to grow tempstring buffer over 256MB, cursize %i, size %i)\n", vm_tempstringsbuf.cursize, size);
2937                 vm_tempstringsbuf.maxsize = max(vm_tempstringsbuf.maxsize, 65536);
2938                 while (vm_tempstringsbuf.maxsize < vm_tempstringsbuf.cursize + size)
2939                         vm_tempstringsbuf.maxsize *= 2;
2940                 if (vm_tempstringsbuf.maxsize != old.maxsize || vm_tempstringsbuf.data == NULL)
2941                 {
2942                         if (developer.integer >= 100)
2943                                 Con_Printf("PRVM_SetTempString: enlarging tempstrings buffer (%iKB -> %iKB)\n", old.maxsize/1024, vm_tempstringsbuf.maxsize/1024);
2944                         vm_tempstringsbuf.data = (unsigned char *) Mem_Alloc(sv_mempool, vm_tempstringsbuf.maxsize);
2945                         if (old.cursize)
2946                                 memcpy(vm_tempstringsbuf.data, old.data, old.cursize);
2947                         if (old.data)
2948                                 Mem_Free(old.data);
2949                 }
2950         }
2951         t = (char *)vm_tempstringsbuf.data + vm_tempstringsbuf.cursize;
2952         memcpy(t, s, size);
2953         vm_tempstringsbuf.cursize += size;
2954         return PRVM_SetEngineString(t);
2955 }
2956
2957 int PRVM_AllocString(size_t bufferlength, char **pointer)
2958 {
2959         int i;
2960         if (!bufferlength)
2961                 return 0;
2962         for (i = prog->firstfreeknownstring;i < prog->numknownstrings;i++)
2963                 if (!prog->knownstrings[i])
2964                         break;
2965         if (i >= prog->numknownstrings)
2966         {
2967                 if (i >= prog->maxknownstrings)
2968                 {
2969                         const char **oldstrings = prog->knownstrings;
2970                         const unsigned char *oldstrings_freeable = prog->knownstrings_freeable;
2971                         const char **oldstrings_origin = prog->knownstrings_origin;
2972                         prog->maxknownstrings += 128;
2973                         prog->knownstrings = (const char **)PRVM_Alloc(prog->maxknownstrings * sizeof(char *));
2974                         prog->knownstrings_freeable = (unsigned char *)PRVM_Alloc(prog->maxknownstrings * sizeof(unsigned char));
2975                         if(prog->leaktest_active)
2976                                 prog->knownstrings_origin = (const char **)PRVM_Alloc(prog->maxknownstrings * sizeof(char *));
2977                         if (prog->numknownstrings)
2978                         {
2979                                 memcpy((char **)prog->knownstrings, oldstrings, prog->numknownstrings * sizeof(char *));
2980                                 memcpy((char **)prog->knownstrings_freeable, oldstrings_freeable, prog->numknownstrings * sizeof(unsigned char));
2981                                 if(prog->leaktest_active)
2982                                         memcpy((char **)prog->knownstrings_origin, oldstrings_origin, prog->numknownstrings * sizeof(char *));
2983                         }
2984                         // TODO why not Mem_Free the old ones?
2985                 }
2986                 prog->numknownstrings++;
2987         }
2988         prog->firstfreeknownstring = i + 1;
2989         prog->knownstrings[i] = (char *)PRVM_Alloc(bufferlength);
2990         prog->knownstrings_freeable[i] = true;
2991         if(prog->leaktest_active)
2992                 prog->knownstrings_origin[i] = PRVM_AllocationOrigin();
2993         if (pointer)
2994                 *pointer = (char *)(prog->knownstrings[i]);
2995         return -1 - i;
2996 }
2997
2998 void PRVM_FreeString(int num)
2999 {
3000         if (num == 0)
3001                 PRVM_ERROR("PRVM_FreeString: attempt to free a NULL string");
3002         else if (num >= 0 && num < prog->stringssize)
3003                 PRVM_ERROR("PRVM_FreeString: attempt to free a constant string");
3004         else if (num < 0 && num >= -prog->numknownstrings)
3005         {
3006                 num = -1 - num;
3007                 if (!prog->knownstrings[num])
3008                         PRVM_ERROR("PRVM_FreeString: attempt to free a non-existent or already freed string");
3009                 if (!prog->knownstrings_freeable[num])
3010                         PRVM_ERROR("PRVM_FreeString: attempt to free a string owned by the engine");
3011                 PRVM_Free((char *)prog->knownstrings[num]);
3012                 if(prog->leaktest_active)
3013                         if(prog->knownstrings_origin[num])
3014                                 PRVM_Free((char *)prog->knownstrings_origin[num]);
3015                 prog->knownstrings[num] = NULL;
3016                 prog->knownstrings_freeable[num] = false;
3017                 prog->firstfreeknownstring = min(prog->firstfreeknownstring, num);
3018         }
3019         else
3020                 PRVM_ERROR("PRVM_FreeString: invalid string offset %i", num);
3021 }
3022
3023 static qboolean PRVM_IsStringReferenced(string_t string)
3024 {
3025         int i, j;
3026
3027         for (i = 0;i < prog->progs->numglobaldefs;i++)
3028         {
3029                 ddef_t *d = &prog->globaldefs[i];
3030                 if((etype_t)((int) d->type & ~DEF_SAVEGLOBAL) != ev_string)
3031                         continue;
3032                 if(string == ((prvm_eval_t *) &prog->globals.generic[d->ofs])->string)
3033                         return true;
3034         }
3035
3036         for(j = 0; j < prog->num_edicts; ++j)
3037         {
3038                 prvm_edict_t *ed = PRVM_EDICT_NUM(j);
3039                 if (ed->priv.required->free)
3040                         continue;
3041                 for (i=0; i<prog->progs->numfielddefs; ++i)
3042                 {
3043                         ddef_t *d = &prog->fielddefs[i];
3044                         if((etype_t)((int) d->type & ~DEF_SAVEGLOBAL) != ev_string)
3045                                 continue;
3046                         if(string == ((prvm_eval_t *) &ed->fields.vp[d->ofs])->string)
3047                                 return true;
3048                 }
3049         }
3050
3051         return false;
3052 }
3053
3054 static qboolean PRVM_IsEdictRelevant(prvm_edict_t *edict)
3055 {
3056         if(PRVM_NUM_FOR_EDICT(edict) <= prog->reserved_edicts)
3057                 return true; // world or clients
3058         switch(prog - prog_list)
3059         {
3060                 case PRVM_SERVERPROG:
3061                         {
3062                                 entvars_t *ev = edict->fields.server;
3063                                 if(ev->solid) // can block other stuff, or is a trigger?
3064                                         return true;
3065                                 if(ev->modelindex) // visible ent?
3066                                         return true;
3067                                 if(ev->effects) // particle effect?
3068                                         return true;
3069                                 if(ev->think) // has a think function?
3070                                         if(ev->nextthink > 0) // that actually will eventually run?
3071                                                 return true;
3072                                 if(ev->takedamage)
3073                                         return true;
3074                                 if(*prvm_leaktest_ignore_classnames.string)
3075                                 {
3076                                         if(strstr(va(" %s ", prvm_leaktest_ignore_classnames.string), va(" %s ", PRVM_GetString(ev->classname))))
3077                                                 return true;
3078                                 }
3079                         }
3080                         break;
3081                 case PRVM_CLIENTPROG:
3082                         {
3083                                 // TODO someone add more stuff here
3084                                 cl_entvars_t *ev = edict->fields.client;
3085                                 if(ev->entnum) // csqc networked
3086                                         return true;
3087                                 if(ev->modelindex) // visible ent?
3088                                         return true;
3089                                 if(ev->effects) // particle effect?
3090                                         return true;
3091                                 if(ev->think) // has a think function?
3092                                         if(ev->nextthink > 0) // that actually will eventually run?
3093                                                 return true;
3094                                 if(*prvm_leaktest_ignore_classnames.string)
3095                                 {
3096                                         if(strstr(va(" %s ", prvm_leaktest_ignore_classnames.string), va(" %s ", PRVM_GetString(ev->classname))))
3097                                                 return true;
3098                                 }
3099                         }
3100                         break;
3101                 case PRVM_MENUPROG:
3102                         // menu prog does not have classnames
3103                         break;
3104         }
3105         return false;
3106 }
3107
3108 static qboolean PRVM_IsEdictReferenced(prvm_edict_t *edict, int mark)
3109 {
3110         int i, j;
3111         int edictnum = PRVM_NUM_FOR_EDICT(edict);
3112         const char *targetname = NULL;
3113
3114         switch(prog - prog_list)
3115         {
3116                 case PRVM_SERVERPROG:
3117                         targetname = PRVM_GetString(edict->fields.server->targetname);
3118                         break;
3119         }
3120
3121         if(targetname)
3122                 if(!*targetname) // ""
3123                         targetname = NULL;
3124
3125         for (i = 0;i < prog->progs->numglobaldefs;i++)
3126         {
3127                 ddef_t *d = &prog->globaldefs[i];
3128                 if((etype_t)((int) d->type & ~DEF_SAVEGLOBAL) != ev_entity)
3129                         continue;
3130                 if(edictnum == ((prvm_eval_t *) &prog->globals.generic[d->ofs])->edict)
3131                         return true;
3132         }
3133
3134         for(j = 0; j < prog->num_edicts; ++j)
3135         {
3136                 prvm_edict_t *ed = PRVM_EDICT_NUM(j);
3137                 if (ed->priv.required->mark < mark)
3138                         continue;
3139                 if(ed == edict)
3140                         continue;
3141                 if(targetname)
3142                 {
3143                         const char *target = PRVM_GetString(ed->fields.server->target);
3144                         if(target)
3145                                 if(!strcmp(target, targetname))
3146                                         return true;
3147                 }
3148                 for (i=0; i<prog->progs->numfielddefs; ++i)
3149                 {
3150                         ddef_t *d = &prog->fielddefs[i];
3151                         if((etype_t)((int) d->type & ~DEF_SAVEGLOBAL) != ev_entity)
3152                                 continue;
3153                         if(edictnum == ((prvm_eval_t *) &ed->fields.vp[d->ofs])->edict)
3154                                 return true;
3155                 }
3156         }
3157
3158         return false;
3159 }
3160
3161 static void PRVM_MarkReferencedEdicts(void)
3162 {
3163         int j;
3164         qboolean found_new;
3165         int stage;
3166
3167         for(j = 0; j < prog->num_edicts; ++j)
3168         {
3169                 prvm_edict_t *ed = PRVM_EDICT_NUM(j);
3170                 if(ed->priv.required->free)
3171                         continue;
3172                 ed->priv.required->mark = PRVM_IsEdictRelevant(ed) ? 1 : 0;
3173         }
3174
3175         stage = 1;
3176         do
3177         {
3178                 found_new = false;
3179                 for(j = 0; j < prog->num_edicts; ++j)
3180                 {
3181                         prvm_edict_t *ed = PRVM_EDICT_NUM(j);
3182                         if(ed->priv.required->free)
3183                                 continue;
3184                         if(ed->priv.required->mark)
3185                                 continue;
3186                         if(PRVM_IsEdictReferenced(ed, stage))
3187                         {
3188                                 ed->priv.required->mark = stage + 1;
3189                                 found_new = true;
3190                         }
3191                 }
3192                 ++stage;
3193         }
3194         while(found_new);
3195         Con_DPrintf("leak check used %d stages to find all references\n", stage);
3196 }
3197
3198 void PRVM_LeakTest(void)
3199 {
3200         int i, j;
3201         qboolean leaked = false;
3202
3203         if(!prog->leaktest_active)
3204                 return;
3205
3206         // 1. Strings
3207         for (i = 0; i < prog->numknownstrings; ++i)
3208         {
3209                 if(prog->knownstrings[i])
3210                 if(prog->knownstrings_freeable[i])
3211                 if(prog->knownstrings_origin[i])
3212                 if(!PRVM_IsStringReferenced(-1 - i))
3213                 {
3214                         Con_Printf("Unreferenced string found!\n  Value: %s\n  Origin: %s\n", prog->knownstrings[i], prog->knownstrings_origin[i]);
3215                         leaked = true;
3216                 }
3217         }
3218
3219         // 2. Edicts
3220         PRVM_MarkReferencedEdicts();
3221         for(j = 0; j < prog->num_edicts; ++j)
3222         {
3223                 prvm_edict_t *ed = PRVM_EDICT_NUM(j);
3224                 if(ed->priv.required->free)
3225                         continue;
3226                 if(!ed->priv.required->mark)
3227                 if(ed->priv.required->allocation_origin)
3228                 {
3229                         Con_Printf("Unreferenced edict found!\n  Allocated at: %s\n", ed->priv.required->allocation_origin);
3230                         PRVM_ED_Print(ed, NULL);
3231                         Con_Print("\n");
3232                         leaked = true;
3233                 }
3234         }
3235
3236         for (i = 0; i < (int)Mem_ExpandableArray_IndexRange(&prog->stringbuffersarray); ++i)
3237         {
3238                 prvm_stringbuffer_t *stringbuffer = (prvm_stringbuffer_t*) Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, i);
3239                 if(stringbuffer)
3240                 if(stringbuffer->origin)
3241                 {
3242                         Con_Printf("Open string buffer handle found!\n  Allocated at: %s\n", stringbuffer->origin);
3243                         leaked = true;
3244                 }
3245         }
3246
3247         for(i = 0; i < PRVM_MAX_OPENFILES; ++i)
3248         {
3249                 if(prog->openfiles[i])
3250                 if(prog->openfiles_origin[i])
3251                 {
3252                         Con_Printf("Open file handle found!\n  Allocated at: %s\n", prog->openfiles_origin[i]);
3253                         leaked = true;
3254                 }
3255         }
3256
3257         for(i = 0; i < PRVM_MAX_OPENSEARCHES; ++i)
3258         {
3259                 if(prog->opensearches[i])
3260                 if(prog->opensearches_origin[i])
3261                 {
3262                         Con_Printf("Open search handle found!\n  Allocated at: %s\n", prog->opensearches_origin[i]);
3263                         leaked = true;
3264                 }
3265         }
3266
3267         if(!leaked)
3268                 Con_Printf("Congratulations. No leaks found.\n");
3269 }