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