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);
  33
  34 // LordHavoc: optional runtime bounds checking (speed drain, but worth it for security, on by default - breaks most QCCX features (used by CRMod and others))
  35 cvar_t  prvm_boundscheck = {0, "prvm_boundscheck", "1"};
  36 // LordHavoc: prints every opcode as it executes - warning: this is significant spew
  37 cvar_t  prvm_traceqc = {0, "prvm_traceqc", "0"};
  38
  39 ddef_t *PRVM_ED_FindField (const char *name);
  40 mfunction_t *PRVM_ED_FindFunction (const char *name);
  41
  42 //============================================================================
  43 // mempool handling
  44
  45 /*
  46 ===============
  47 PRVM_MEM_Alloc
  48 ===============
  49 */
  50 void PRVM_MEM_Alloc()
  51 {
  52         int i;
  53
  54         // reserve space for the null entity aka world
  55         // check bound of max_edicts
  56         prog->max_edicts = bound(1, prog->max_edicts, prog->limit_edicts);
  57         prog->num_edicts = bound(1, prog->num_edicts, prog->max_edicts);
  58
  59         // edictprivate_size has to be min as big prvm_edict_private_t
  60         prog->edictprivate_size = max(prog->edictprivate_size,(int)sizeof(prvm_edict_private_t));
  61
  62         // alloc edicts
  63         prog->edicts = Mem_Alloc(prog->edicts_mempool,prog->limit_edicts * sizeof(prvm_edict_t));
  64
  65         // alloc edict private space
  66         prog->edictprivate = Mem_Alloc(prog->edicts_mempool, prog->max_edicts * prog->edictprivate_size);
  67
  68         // alloc edict fields
  69         prog->edictsfields = Mem_Alloc(prog->edicts_mempool, prog->max_edicts * prog->edict_size);
  70
  71         // set edict pointers
  72         for(i = 0; i < prog->max_edicts; i++)
  73         {
  74                 prog->edicts[i].p.e = (prvm_edict_private_t *)((qbyte  *)prog->edictprivate + i * prog->edictprivate_size);
  75                 prog->edicts[i].v = (void*)((qbyte *)prog->edictsfields + i * prog->edict_size);
  76         }
  77 }
  78
  79 /*
  80 ===============
  81 PRVM_MEM_IncreaseEdicts
  82 ===============
  83 */
  84 void PRVM_MEM_IncreaseEdicts()
  85 {
  86         int             i;
  87         int             oldmaxedicts = prog->max_edicts;
  88         void    *oldedictsfields = prog->edictsfields;
  89         void    *oldedictprivate = prog->edictprivate;
  90
  91         if(prog->max_edicts >= prog->limit_edicts)
  92                 return;
  93
  94         PRVM_GCALL(begin_increase_edicts)();
  95
  96         // increase edicts
  97         prog->max_edicts = min(prog->max_edicts + 256, prog->limit_edicts);
  98
  99         prog->edictsfields = Mem_Alloc(prog->edicts_mempool, prog->max_edicts * prog->edict_size);
 100         prog->edictprivate = Mem_Alloc(prog->edicts_mempool, prog->max_edicts * prog->edictprivate_size);
 101
 102         memcpy(prog->edictsfields, oldedictsfields, oldmaxedicts * prog->edict_size);
 103         memcpy(prog->edictprivate, oldedictprivate, oldmaxedicts * prog->edictprivate_size);
 104
 105         //set e and v pointers
 106         for(i = 0; i < prog->max_edicts; i++)
 107         {
 108                 prog->edicts[i].p.e = (prvm_edict_private_t *)((qbyte  *)prog->edictprivate + i * prog->edictprivate_size);
 109                 prog->edicts[i].v = (void*)((qbyte *)prog->edictsfields + i * prog->edict_size);
 110         }
 111
 112         PRVM_GCALL(end_increase_edicts)();
 113
 114         Mem_Free(oldedictsfields);
 115         Mem_Free(oldedictprivate);
 116 }
 117
 118 //============================================================================
 119 // normal prvm
 120
 121 int PRVM_ED_FindFieldOffset(const char *field)
 122 {
 123         ddef_t *d;
 124         d = PRVM_ED_FindField(field);
 125         if (!d)
 126                 return 0;
 127         return d->ofs*4;
 128 }
 129
 130 qboolean PRVM_ProgLoaded(int prognr)
 131 {
 132         if(prognr < 0 || prognr >= PRVM_MAXPROGS)
 133                 return FALSE;
 134
 135         return (prog_list[prognr].loaded ? TRUE : FALSE);
 136 }
 137
 138 /*
 139 =================
 140 PRVM_SetProgFromString
 141 =================
 142 */
 143 // perhaps add a return value when the str doesnt exist
 144 qboolean PRVM_SetProgFromString(const char *str)
 145 {
 146         int i = 0;
 147         for(; i < PRVM_MAXPROGS ; i++)
 148                 if(prog_list[i].name && !strcmp(prog_list[i].name,str))
 149                 {
 150                         if(prog_list[i].loaded)
 151                         {
 152                                 prog = &prog_list[i];
 153                                 return TRUE;
 154                         }
 155                         else
 156                         {
 157                                 Con_Printf("%s not loaded !\n",PRVM_NAME);
 158                                 return FALSE;
 159                         }
 160                 }
 161
 162         Con_Printf("Invalid program name %s !\n", str);
 163         return FALSE;
 164 }
 165
 166 /*
 167 =================
 168 PRVM_SetProg
 169 =================
 170 */
 171 void PRVM_SetProg(int prognr)
 172 {
 173         if(prognr && prognr < PRVM_MAXPROGS)
 174         {
 175                 if(prog_list[prognr].loaded)
 176                         prog = &prog_list[prognr];
 177                 else
 178                         PRVM_ERROR("%i(%s) not loaded !\n", prognr, PRVM_NAME);
 179                 return;
 180         }
 181         PRVM_ERROR("Invalid program number %i\n", prognr);
 182 }
 183
 184 /*
 185 =================
 186 PRVM_ED_ClearEdict
 187
 188 Sets everything to NULL
 189 =================
 190 */
 191 void PRVM_ED_ClearEdict (prvm_edict_t *e)
 192 {
 193         int num;
 194         memset (e->v, 0, prog->progs->entityfields * 4);
 195         e->p.e->free = false;
 196         // LordHavoc: for consistency set these here
 197         num = PRVM_NUM_FOR_EDICT(e) - 1;
 198
 199         // AK: Let the init_edict function determine if something needs to be initialized
 200         PRVM_GCALL(init_edict)(num);
 201 }
 202
 203 /*
 204 =================
 205 PRVM_ED_Alloc
 206
 207 Either finds a free edict, or allocates a new one.
 208 Try to avoid reusing an entity that was recently freed, because it
 209 can cause the client to think the entity morphed into something else
 210 instead of being removed and recreated, which can cause interpolated
 211 angles and bad trails.
 212 =================
 213 */
 214 prvm_edict_t *PRVM_ED_Alloc (void)
 215 {
 216         int                     i;
 217         prvm_edict_t            *e;
 218
 219         // the client qc dont need maxclients
 220         // thus it doesnt need to use svs.maxclients
 221         // AK:  changed i=svs.maxclients+1
 222         // AK:  changed so the edict 0 wont spawn -> used as reserved/world entity
 223         //              although the menu/client has no world
 224         for (i = 1;i < prog->num_edicts;i++)
 225         {
 226                 e = PRVM_EDICT_NUM(i);
 227                 // the first couple seconds of server time can involve a lot of
 228                 // freeing and allocating, so relax the replacement policy
 229                 if (e->p.e->free && ( e->p.e->freetime < 2 || (*prog->time - e->p.e->freetime) > 0.5 ) )
 230                 {
 231                         PRVM_ED_ClearEdict (e);
 232                         return e;
 233                 }
 234         }
 235
 236         if (i == MAX_EDICTS)
 237                 PRVM_ERROR ("%s: PRVM_ED_Alloc: no free edicts",PRVM_NAME);
 238
 239         prog->num_edicts++;
 240         if (prog->num_edicts >= prog->max_edicts)
 241                 PRVM_MEM_IncreaseEdicts();
 242
 243         e = PRVM_EDICT_NUM(i);
 244         PRVM_ED_ClearEdict (e);
 245
 246         return e;
 247 }
 248
 249 /*
 250 =================
 251 PRVM_ED_Free
 252
 253 Marks the edict as free
 254 FIXME: walk all entities and NULL out references to this entity
 255 =================
 256 */
 257 void PRVM_ED_Free (prvm_edict_t *ed)
 258 {
 259         // dont delete the null entity (world)
 260         if(PRVM_NUM_FOR_EDICT(ed) == 0)
 261                 return;
 262
 263         PRVM_GCALL(free_edict)(ed);
 264
 265         ed->p.e->free = true;
 266         ed->p.e->freetime = *prog->time;
 267 }
 268
 269 //===========================================================================
 270
 271 /*
 272 ============
 273 PRVM_ED_GlobalAtOfs
 274 ============
 275 */
 276 ddef_t *PRVM_ED_GlobalAtOfs (int ofs)
 277 {
 278         ddef_t          *def;
 279         int                     i;
 280
 281         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
 282         {
 283                 def = &prog->globaldefs[i];
 284                 if (def->ofs == ofs)
 285                         return def;
 286         }
 287         return NULL;
 288 }
 289
 290 /*
 291 ============
 292 PRVM_ED_FieldAtOfs
 293 ============
 294 */
 295 ddef_t *PRVM_ED_FieldAtOfs (int ofs)
 296 {
 297         ddef_t          *def;
 298         int                     i;
 299
 300         for (i=0 ; i<prog->progs->numfielddefs ; i++)
 301         {
 302                 def = &prog->fielddefs[i];
 303                 if (def->ofs == ofs)
 304                         return def;
 305         }
 306         return NULL;
 307 }
 308
 309 /*
 310 ============
 311 PRVM_ED_FindField
 312 ============
 313 */
 314 ddef_t *PRVM_ED_FindField (const char *name)
 315 {
 316         ddef_t *def;
 317         int i;
 318
 319         for (i=0 ; i<prog->progs->numfielddefs ; i++)
 320         {
 321                 def = &prog->fielddefs[i];
 322                 if (!strcmp(PRVM_GetString(def->s_name), name))
 323                         return def;
 324         }
 325         return NULL;
 326 }
 327
 328 /*
 329 ============
 330 PRVM_ED_FindGlobal
 331 ============
 332 */
 333 ddef_t *PRVM_ED_FindGlobal (const char *name)
 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 (!strcmp(PRVM_GetString(def->s_name), name))
 342                         return def;
 343         }
 344         return NULL;
 345 }
 346
 347
 348 /*
 349 ============
 350 PRVM_ED_FindFunction
 351 ============
 352 */
 353 mfunction_t *PRVM_ED_FindFunction (const char *name)
 354 {
 355         mfunction_t             *func;
 356         int                             i;
 357
 358         for (i=0 ; i<prog->progs->numfunctions ; i++)
 359         {
 360                 func = &prog->functions[i];
 361                 if (!strcmp(PRVM_GetString(func->s_name), name))
 362                         return func;
 363         }
 364         return NULL;
 365 }
 366
 367
 368 /*
 369 ============
 370 PRVM_ValueString
 371
 372 Returns a string describing *data in a type specific manner
 373 =============
 374 */
 375 char *PRVM_ValueString (etype_t type, prvm_eval_t *val)
 376 {
 377         static char line[1024]; // LordHavoc: enlarged a bit (was 256)
 378         ddef_t *def;
 379         mfunction_t *f;
 380         int n;
 381
 382         type &= ~DEF_SAVEGLOBAL;
 383
 384         switch (type)
 385         {
 386         case ev_string:
 387                 strlcpy (line, PRVM_GetString (val->string), sizeof (line));
 388                 break;
 389         case ev_entity:
 390                 n = val->edict;
 391                 if (n < 0 || n >= MAX_EDICTS)
 392                         sprintf (line, "entity %i (invalid!)", n);
 393                 else
 394                         sprintf (line, "entity %i", n);
 395                 break;
 396         case ev_function:
 397                 f = prog->functions + val->function;
 398                 sprintf (line, "%s()", PRVM_GetString(f->s_name));
 399                 break;
 400         case ev_field:
 401                 def = PRVM_ED_FieldAtOfs ( val->_int );
 402                 sprintf (line, ".%s", PRVM_GetString(def->s_name));
 403                 break;
 404         case ev_void:
 405                 sprintf (line, "void");
 406                 break;
 407         case ev_float:
 408                 // LordHavoc: changed from %5.1f to %10.4f
 409                 sprintf (line, "%10.4f", val->_float);
 410                 break;
 411         case ev_vector:
 412                 // LordHavoc: changed from %5.1f to %10.4f
 413                 sprintf (line, "'%10.4f %10.4f %10.4f'", val->vector[0], val->vector[1], val->vector[2]);
 414                 break;
 415         case ev_pointer:
 416                 sprintf (line, "pointer");
 417                 break;
 418         default:
 419                 sprintf (line, "bad type %i", type);
 420                 break;
 421         }
 422
 423         return line;
 424 }
 425
 426 /*
 427 ============
 428 PRVM_UglyValueString
 429
 430 Returns a string describing *data in a type specific manner
 431 Easier to parse than PR_ValueString
 432 =============
 433 */
 434 char *PRVM_UglyValueString (etype_t type, prvm_eval_t *val)
 435 {
 436         static char line[4096];
 437         int i;
 438         char *s;
 439         ddef_t *def;
 440         mfunction_t *f;
 441
 442         type &= ~DEF_SAVEGLOBAL;
 443
 444         switch (type)
 445         {
 446         case ev_string:
 447                 // Parse the string a bit to turn special characters
 448                 // (like newline, specifically) into escape codes,
 449                 // this fixes saving games from various mods
 450                 s = PRVM_GetString (val->string);
 451                 for (i = 0;i < (int)sizeof(line) - 2 && *s;)
 452                 {
 453                         if (*s == '\n')
 454                         {
 455                                 line[i++] = '\\';
 456                                 line[i++] = 'n';
 457                         }
 458                         else if (*s == '\r')
 459                         {
 460                                 line[i++] = '\\';
 461                                 line[i++] = 'r';
 462                         }
 463                         else
 464                                 line[i++] = *s;
 465                         s++;
 466                 }
 467                 line[i] = '\0';
 468                 break;
 469         case ev_entity:
 470                 snprintf (line, sizeof (line), "%i", PRVM_NUM_FOR_EDICT(PRVM_PROG_TO_EDICT(val->edict)));
 471                 break;
 472         case ev_function:
 473                 f = pr_functions + val->function;
 474                 strlcpy (line, PRVM_GetString (f->s_name), sizeof (line));
 475                 break;
 476         case ev_field:
 477                 def = PRVM_ED_FieldAtOfs ( val->_int );
 478                 snprintf (line, sizeof (line), ".%s", PRVM_GetString(def->s_name));
 479                 break;
 480         case ev_void:
 481                 snprintf (line, sizeof (line), "void");
 482                 break;
 483         case ev_float:
 484                 snprintf (line, sizeof (line), "%f", val->_float);
 485                 break;
 486         case ev_vector:
 487                 snprintf (line, sizeof (line), "%f %f %f", val->vector[0], val->vector[1], val->vector[2]);
 488                 break;
 489         default:
 490                 snprintf (line, sizeof (line), "bad type %i", type);
 491                 break;
 492         }
 493
 494         return line;
 495 }
 496
 497 /*
 498 ============
 499 PRVM_GlobalString
 500
 501 Returns a string with a description and the contents of a global,
 502 padded to 20 field width
 503 ============
 504 */
 505 char *PRVM_GlobalString (int ofs)
 506 {
 507         char    *s;
 508         int             i;
 509         ddef_t  *def;
 510         void    *val;
 511         static char     line[128];
 512
 513         val = (void *)&prog->globals[ofs];
 514         def = PRVM_ED_GlobalAtOfs(ofs);
 515         if (!def)
 516                 sprintf (line,"%i(?)", ofs);
 517         else
 518         {
 519                 s = PRVM_ValueString (def->type, val);
 520                 sprintf (line,"%i(%s)%s", ofs, PRVM_GetString(def->s_name), s);
 521         }
 522
 523         i = strlen(line);
 524         for ( ; i<20 ; i++)
 525                 strcat (line," ");
 526         strcat (line," ");
 527
 528         return line;
 529 }
 530
 531 char *PRVM_GlobalStringNoContents (int ofs)
 532 {
 533         int             i;
 534         ddef_t  *def;
 535         static char     line[128];
 536
 537         def = PRVM_ED_GlobalAtOfs(ofs);
 538         if (!def)
 539                 sprintf (line,"%i(?)", ofs);
 540         else
 541                 sprintf (line,"%i(%s)", ofs, PRVM_GetString(def->s_name));
 542
 543         i = strlen(line);
 544         for ( ; i<20 ; i++)
 545                 strcat (line," ");
 546         strcat (line," ");
 547
 548         return line;
 549 }
 550
 551
 552 /*
 553 =============
 554 PRVM_ED_Print
 555
 556 For debugging
 557 =============
 558 */
 559 // LordHavoc: optimized this to print out much more quickly (tempstring)
 560 // LordHavoc: changed to print out every 4096 characters (incase there are a lot of fields to print)
 561 void PRVM_ED_Print(prvm_edict_t *ed)
 562 {
 563         int             l;
 564         ddef_t  *d;
 565         int             *v;
 566         int             i, j;
 567         char    *name;
 568         int             type;
 569         char    tempstring[8192], tempstring2[260]; // temporary string buffers
 570
 571         if (ed->p.e->free)
 572         {
 573                 Con_Printf("%s: FREE\n",PRVM_NAME);
 574                 return;
 575         }
 576
 577         tempstring[0] = 0;
 578         sprintf(tempstring, "\n%s EDICT %i:\n", PRVM_NAME, PRVM_NUM_FOR_EDICT(ed));
 579         for (i=1 ; i<prog->progs->numfielddefs ; i++)
 580         {
 581                 d = &prog->fielddefs[i];
 582                 name = PRVM_GetString(d->s_name);
 583                 if (name[strlen(name)-2] == '_')
 584                         continue;       // skip _x, _y, _z vars
 585
 586                 v = (int *)((char *)ed->v + d->ofs*4);
 587
 588         // if the value is still all 0, skip the field
 589                 type = d->type & ~DEF_SAVEGLOBAL;
 590
 591                 for (j=0 ; j<prvm_type_size[type] ; j++)
 592                         if (v[j])
 593                                 break;
 594                 if (j == prvm_type_size[type])
 595                         continue;
 596
 597                 if (strlen(name) > 256)
 598                 {
 599                         memcpy (tempstring2, name, 256);
 600                         tempstring2[256] = tempstring2[257] = tempstring2[258] = '.';
 601                         tempstring2[259] = 0;
 602                         name = tempstring2;
 603                 }
 604                 strcat(tempstring, name);
 605                 for (l = strlen(name);l < 14;l++)
 606                         strcat(tempstring, " ");
 607                 strcat(tempstring, " ");
 608
 609                 name = PRVM_ValueString(d->type, (prvm_eval_t *)v);
 610                 if (strlen(name) > 256)
 611                 {
 612                         memcpy (tempstring2, name, 256);
 613                         tempstring2[256] = tempstring2[257] = tempstring2[258] = '.';
 614                         tempstring2[259] = 0;
 615                         name = tempstring2;
 616                 }
 617                 strcat(tempstring, name);
 618                 strcat(tempstring, "\n");
 619                 if (strlen(tempstring) >= 4096)
 620                 {
 621                         Con_Print(tempstring);
 622                         tempstring[0] = 0;
 623                 }
 624         }
 625         if (tempstring[0])
 626                 Con_Print(tempstring);
 627 }
 628
 629 /*
 630 =============
 631 PRVM_ED_Write
 632
 633 For savegames
 634 =============
 635 */
 636 void PRVM_ED_Write (qfile_t *f, prvm_edict_t *ed)
 637 {
 638         ddef_t  *d;
 639         int             *v;
 640         int             i, j;
 641         char    *name;
 642         int             type;
 643
 644         FS_Print(f, "{\n");
 645
 646         if (ed->p.e->free)
 647         {
 648                 FS_Print(f, "}\n");
 649                 return;
 650         }
 651
 652         for (i=1 ; i<prog->progs->numfielddefs ; i++)
 653         {
 654                 d = &prog->fielddefs[i];
 655                 name = PRVM_GetString(d->s_name);
 656                 if (name[strlen(name)-2] == '_')
 657                         continue;       // skip _x, _y, _z vars
 658
 659                 v = (int *)((char *)ed->v + d->ofs*4);
 660
 661         // if the value is still all 0, skip the field
 662                 type = d->type & ~DEF_SAVEGLOBAL;
 663                 for (j=0 ; j<prvm_type_size[type] ; j++)
 664                         if (v[j])
 665                                 break;
 666                 if (j == prvm_type_size[type])
 667                         continue;
 668
 669                 FS_Printf(f,"\"%s\" ",name);
 670                 FS_Printf(f,"\"%s\"\n", PRVM_UglyValueString(d->type, (prvm_eval_t *)v));
 671         }
 672
 673         FS_Print(f, "}\n");
 674 }
 675
 676 void PRVM_ED_PrintNum (int ent)
 677 {
 678         PRVM_ED_Print(PRVM_EDICT_NUM(ent));
 679 }
 680
 681 /*
 682 =============
 683 PRVM_ED_PrintEdicts_f
 684
 685 For debugging, prints all the entities in the current server
 686 =============
 687 */
 688 void PRVM_ED_PrintEdicts_f (void)
 689 {
 690         int             i;
 691
 692         if(Cmd_Argc() != 2)
 693         {
 694                 Con_Print("prvm_edicts <program name>\n");
 695                 return;
 696         }
 697
 698         PRVM_Begin;
 699         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
 700                 return;
 701
 702         Con_Printf("%s: %i entities\n", PRVM_NAME, prog->num_edicts);
 703         for (i=0 ; i<prog->num_edicts ; i++)
 704                 PRVM_ED_PrintNum (i);
 705
 706         PRVM_End;
 707 }
 708
 709 /*
 710 =============
 711 PRVM_ED_PrintEdict_f
 712
 713 For debugging, prints a single edict
 714 =============
 715 */
 716 void PRVM_ED_PrintEdict_f (void)
 717 {
 718         int             i;
 719
 720         if(Cmd_Argc() != 3)
 721         {
 722                 Con_Print("prvm_edict <program name> <edict number>\n");
 723                 return;
 724         }
 725
 726         PRVM_Begin;
 727         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
 728                 return;
 729
 730         i = atoi (Cmd_Argv(2));
 731         if (i >= prog->num_edicts)
 732         {
 733                 Con_Print("Bad edict number\n");
 734                 PRVM_End;
 735                 return;
 736         }
 737         PRVM_ED_PrintNum (i);
 738
 739         PRVM_End;
 740 }
 741
 742 /*
 743 =============
 744 PRVM_ED_Count
 745
 746 For debugging
 747 =============
 748 */
 749 // 2 possibilities : 1. just displaying the active edict count
 750 //                                       2. making a function pointer [x]
 751 void PRVM_ED_Count_f (void)
 752 {
 753         int             i;
 754         prvm_edict_t    *ent;
 755         int             active;
 756
 757         if(Cmd_Argc() != 2)
 758         {
 759                 Con_Print("prvm_count <program name>\n");
 760                 return;
 761         }
 762
 763         PRVM_Begin;
 764         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
 765                 return;
 766
 767         if(prog->count_edicts)
 768                 prog->count_edicts();
 769         else
 770         {
 771                 active = 0;
 772                 for (i=0 ; i<prog->num_edicts ; i++)
 773                 {
 774                         ent = PRVM_EDICT_NUM(i);
 775                         if (ent->p.e->free)
 776                                 continue;
 777                         active++;
 778                 }
 779
 780                 Con_Printf("num_edicts:%3i\n", prog->num_edicts);
 781                 Con_Printf("active    :%3i\n", active);
 782         }
 783
 784         PRVM_End;
 785 }
 786
 787 /*
 788 ==============================================================================
 789
 790                                         ARCHIVING GLOBALS
 791
 792 FIXME: need to tag constants, doesn't really work
 793 ==============================================================================
 794 */
 795
 796 /*
 797 =============
 798 PRVM_ED_WriteGlobals
 799 =============
 800 */
 801 void PRVM_ED_WriteGlobals (qfile_t *f)
 802 {
 803         ddef_t          *def;
 804         int                     i;
 805         char            *name;
 806         int                     type;
 807
 808         FS_Print(f,"{\n");
 809         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
 810         {
 811                 def = &prog->globaldefs[i];
 812                 type = def->type;
 813                 if ( !(def->type & DEF_SAVEGLOBAL) )
 814                         continue;
 815                 type &= ~DEF_SAVEGLOBAL;
 816
 817                 if (type != ev_string && type != ev_float && type != ev_entity)
 818                         continue;
 819
 820                 name = PRVM_GetString(def->s_name);
 821                 FS_Printf(f,"\"%s\" ", name);
 822                 FS_Printf(f,"\"%s\"\n", PRVM_UglyValueString(type, (prvm_eval_t *)&prog->globals[def->ofs]));
 823         }
 824         FS_Print(f,"}\n");
 825 }
 826
 827 /*
 828 =============
 829 PRVM_ED_ParseGlobals
 830 =============
 831 */
 832 void PRVM_ED_ParseGlobals (const char *data)
 833 {
 834         char keyname[1024]; // LordHavoc: good idea? bad idea?  was 64
 835         ddef_t *key;
 836
 837         while (1)
 838         {
 839                 // parse key
 840                 if (!COM_ParseToken(&data, false))
 841                         PRVM_ERROR ("PRVM_ED_ParseEntity: EOF without closing brace");
 842                 if (com_token[0] == '}')
 843                         break;
 844
 845                 strcpy (keyname, com_token);
 846
 847                 // parse value
 848                 if (!COM_ParseToken(&data, false))
 849                         PRVM_ERROR ("PRVM_ED_ParseEntity: EOF without closing brace");
 850
 851                 if (com_token[0] == '}')
 852                         PRVM_ERROR ("PRVM_ED_ParseEntity: closing brace without data");
 853
 854                 key = PRVM_ED_FindGlobal (keyname);
 855                 if (!key)
 856                 {
 857                         Con_DPrintf("'%s' is not a global on %s\n", keyname, PRVM_NAME);
 858                         continue;
 859                 }
 860
 861                 if (!PRVM_ED_ParseEpair(NULL, key, com_token))
 862                         PRVM_ERROR ("PRVM_ED_ParseGlobals: parse error");
 863         }
 864 }
 865
 866 //============================================================================
 867
 868
 869 /*
 870 =============
 871 PRVM_ED_NewString
 872 =============
 873 */
 874 char *PRVM_ED_NewString (const char *string)
 875 {
 876         char *new, *new_p;
 877         int i,l;
 878
 879         l = strlen(string) + 1;
 880         new = Mem_Alloc(prog->edictstring_mempool, l);
 881         new_p = new;
 882
 883         for (i=0 ; i< l ; i++)
 884         {
 885                 if (string[i] == '\\' && i < l-1)
 886                 {
 887                         i++;
 888                         if (string[i] == 'n')
 889                                 *new_p++ = '\n';
 890                         else
 891                                 *new_p++ = '\\';
 892                 }
 893                 else
 894                         *new_p++ = string[i];
 895         }
 896
 897         return new;
 898 }
 899
 900 /*
 901 =============
 902 PRVM_ED_ParseEval
 903
 904 Can parse either fields or globals
 905 returns false if error
 906 =============
 907 */
 908 qboolean PRVM_ED_ParseEpair(prvm_edict_t *ent, ddef_t *key, const char *s)
 909 {
 910         int i;
 911         ddef_t *def;
 912         prvm_eval_t *val;
 913         mfunction_t *func;
 914
 915         if (ent)
 916                 val = (prvm_eval_t *)((int *)ent->v + key->ofs);
 917         else
 918                 val = (prvm_eval_t *)((int *)pr_globals + key->ofs);
 919         switch (key->type & ~DEF_SAVEGLOBAL)
 920         {
 921         case ev_string:
 922                 val->string = PRVM_SetString(PRVM_ED_NewString(s));
 923                 break;
 924
 925         case ev_float:
 926                 while (*s && *s <= ' ')
 927                         s++;
 928                 val->_float = atof(s);
 929                 break;
 930
 931         case ev_vector:
 932                 for (i = 0;i < 3;i++)
 933                 {
 934                         while (*s && *s <= ' ')
 935                                 s++;
 936                         if (!*s)
 937                                 break;
 938                         val->vector[i] = atof(s);
 939                         while (*s > ' ')
 940                                 s++;
 941                         if (!*s)
 942                                 break;
 943                 }
 944                 break;
 945
 946         case ev_entity:
 947                 while (*s && *s <= ' ')
 948                         s++;
 949                 i = atoi(s);
 950                 if (i < 0 || i >= MAX_EDICTS)
 951                         Con_Printf("PRVM_ED_ParseEpair: ev_entity reference too large (edict %i >= MAX_EDICTS %i) on %s\n", i, MAX_EDICTS, PRVM_NAME);
 952                 while (i >= prog->max_edicts)
 953                         PRVM_MEM_IncreaseEdicts();
 954                         //SV_IncreaseEdicts();
 955                 // if SV_IncreaseEdicts was called the base pointer needs to be updated
 956                 if (ent)
 957                         val = (prvm_eval_t *)((int *)ent->v + key->ofs);
 958                 val->edict = PRVM_EDICT_TO_PROG(EDICT_NUM(i));
 959                 break;
 960
 961         case ev_field:
 962                 def = PRVM_ED_FindField(s);
 963                 if (!def)
 964                 {
 965                         Con_DPrintf("PRVM_ED_ParseEpair: Can't find field %s in %s\n", s, PRVM_NAME);
 966                         return false;
 967                 }
 968                 val->_int = PRVM_G_INT(def->ofs);
 969                 break;
 970
 971         case ev_function:
 972                 func = PRVM_ED_FindFunction(s);
 973                 if (!func)
 974                 {
 975                         Con_Printf("PRVM_ED_ParseEpair: Can't find function %s in %s\n", s, PRVM_NAME);
 976                         return false;
 977                 }
 978                 val->function = func - prog->functions;
 979                 break;
 980
 981         default:
 982                 Con_Printf("PRVM_ED_ParseEpair: Unknown key->type %i for key \"%s\" on %s\n", key->type, PR_GetString(key->s_name), PRVM_NAME);
 983                 return false;
 984         }
 985         return true;
 986 }
 987
 988 /*
 989 =============
 990 PRVM_ED_EdictSet_f
 991
 992 Console command to set a field of a specified edict
 993 =============
 994 */
 995 void PRVM_ED_EdictSet_f(void)
 996 {
 997         prvm_edict_t *ed;
 998         ddef_t *key;
 999
1000         if(Cmd_Argc() != 5)
1001         {
1002                 Con_Print("prvm_edictset <program name> <edict number> <field> <value>\n");
1003                 return;
1004         }
1005
1006         PRVM_Begin;
1007         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
1008         {
1009                 Con_Printf("Wrong program name %s !\n", Cmd_Argv(1));
1010                 return;
1011         }
1012
1013         ed = PRVM_EDICT_NUM(atoi(Cmd_Argv(2)));
1014
1015         if((key = PRVM_ED_FindField(Cmd_Argv(3))) == 0)
1016         {
1017                 Con_Printf("Key %s not found !\n", Cmd_Argv(3));
1018                 return;
1019         }
1020
1021         PRVM_ED_ParseEpair(ed, key, Cmd_Argv(4));
1022
1023         PRVM_End;
1024 }
1025
1026 /*
1027 ====================
1028 PRVM_ED_ParseEdict
1029
1030 Parses an edict out of the given string, returning the new position
1031 ed should be a properly initialized empty edict.
1032 Used for initial level load and for savegames.
1033 ====================
1034 */
1035 const char *PRVM_ED_ParseEdict (const char *data, prvm_edict_t *ent)
1036 {
1037         ddef_t *key;
1038         qboolean anglehack;
1039         qboolean init;
1040         char keyname[256];
1041         int n;
1042
1043         init = false;
1044
1045 // go through all the dictionary pairs
1046         while (1)
1047         {
1048         // parse key
1049                 if (!COM_ParseToken(&data, false))
1050                         PRVM_ERROR ("PRVM_ED_ParseEntity: EOF without closing brace");
1051                 if (com_token[0] == '}')
1052                         break;
1053
1054                 // anglehack is to allow QuakeEd to write single scalar angles
1055                 // and allow them to be turned into vectors. (FIXME...)
1056                 if (!strcmp(com_token, "angle"))
1057                 {
1058                         strcpy (com_token, "angles");
1059                         anglehack = true;
1060                 }
1061                 else
1062                         anglehack = false;
1063
1064                 // FIXME: change light to _light to get rid of this hack
1065                 if (!strcmp(com_token, "light"))
1066                         strcpy (com_token, "light_lev");        // hack for single light def
1067
1068                 strcpy (keyname, com_token);
1069
1070                 // another hack to fix keynames with trailing spaces
1071                 n = strlen(keyname);
1072                 while (n && keyname[n-1] == ' ')
1073                 {
1074                         keyname[n-1] = 0;
1075                         n--;
1076                 }
1077
1078         // parse value
1079                 if (!COM_ParseToken(&data, false))
1080                         PRVM_ERROR ("PRVM_ED_ParseEntity: EOF without closing brace");
1081
1082                 if (com_token[0] == '}')
1083                         PRVM_ERROR ("PRVM_ED_ParseEntity: closing brace without data");
1084
1085                 init = true;
1086
1087 // keynames with a leading underscore are used for utility comments,
1088 // and are immediately discarded by quake
1089                 if (keyname[0] == '_')
1090                         continue;
1091
1092                 key = PRVM_ED_FindField (keyname);
1093                 if (!key)
1094                 {
1095                         Con_DPrintf("%s: '%s' is not a field\n", PRVM_NAME, keyname);
1096                         continue;
1097                 }
1098
1099                 if (anglehack)
1100                 {
1101                         char    temp[32];
1102                         strcpy (temp, com_token);
1103                         sprintf (com_token, "0 %s 0", temp);
1104                 }
1105
1106                 if (!PRVM_ED_ParseEpair(ent, key, com_token))
1107                         PRVM_ERROR ("PRVM_ED_ParseEdict: parse error");
1108         }
1109
1110         if (!init)
1111                 ent->p.e->free = true;
1112
1113         return data;
1114 }
1115
1116
1117 /*
1118 ================
1119 PRVM_ED_LoadFromFile
1120
1121 The entities are directly placed in the array, rather than allocated with
1122 PRVM_ED_Alloc, because otherwise an error loading the map would have entity
1123 number references out of order.
1124
1125 Creates a server's entity / program execution context by
1126 parsing textual entity definitions out of an ent file.
1127
1128 Used for both fresh maps and savegame loads.  A fresh map would also need
1129 to call PRVM_ED_CallSpawnFunctions () to let the objects initialize themselves.
1130 ================
1131 */
1132 void PRVM_ED_LoadFromFile (const char *data)
1133 {
1134         prvm_edict_t *ent;
1135         int parsed, inhibited, spawned, died;
1136         mfunction_t *func;
1137
1138         parsed = 0;
1139         inhibited = 0;
1140         spawned = 0;
1141         died = 0;
1142
1143
1144 // parse ents
1145         while (1)
1146         {
1147 // parse the opening brace
1148                 if (!COM_ParseToken(&data, false))
1149                         break;
1150                 if (com_token[0] != '{')
1151                         PRVM_ERROR ("PRVM_ED_LoadFromFile: %s: found %s when expecting {", PRVM_NAME, com_token);
1152
1153                 // CHANGED: this is not conform to ED_LoadFromFile
1154                 if(!prog->num_edicts)
1155                         ent = PRVM_EDICT_NUM(0);
1156                 else
1157                         ent = PRVM_ED_Alloc();
1158
1159                 // clear it
1160                 if (ent != prog->edicts)        // hack
1161                         memset (ent->v, 0, prog->progs->entityfields * 4);
1162
1163                 data = PRVM_ED_ParseEdict (data, ent);
1164                 parsed++;
1165
1166                 // remove the entity ?
1167                 if(prog->load_edict && !prog->load_edict(ent))
1168                 {
1169                         PRVM_ED_Free(ent);
1170                         inhibited++;
1171                         continue;
1172                 }
1173
1174 //
1175 // immediately call spawn function, but only if there is a self global and a classname
1176 //
1177                 if(prog->self && prog->flag & PRVM_FE_CLASSNAME)
1178                 {
1179                         string_t handle =  *(string_t*)&((float*)ent->v)[PRVM_ED_FindFieldOffset("classname")];
1180                         if (!handle)
1181                         {
1182                                 Con_Print("No classname for:\n");
1183                                 PRVM_ED_Print(ent);
1184                                 PRVM_ED_Free (ent);
1185                                 continue;
1186                         }
1187
1188                         // look for the spawn function
1189                         func = PRVM_ED_FindFunction (PRVM_GetString(handle));
1190
1191                         if (!func)
1192                         {
1193                                 if (developer.integer) // don't confuse non-developers with errors
1194                                 {
1195                                         Con_Print("No spawn function for:\n");
1196                                         PRVM_ED_Print(ent);
1197                                 }
1198                                 PRVM_ED_Free (ent);
1199                                 continue;
1200                         }
1201
1202                         // self = ent
1203                         PRVM_G_INT(prog->self->ofs) = PRVM_EDICT_TO_PROG(ent);
1204                         PRVM_ExecuteProgram (func - prog->functions, "");
1205                 }
1206
1207                 spawned++;
1208                 if (ent->p.e->free)
1209                         died++;
1210         }
1211
1212         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);
1213 }
1214
1215 // not used
1216 /*
1217 typedef struct dpfield_s
1218 {
1219         int type;
1220         char *string;
1221 }
1222 dpfield_t;
1223
1224 #define DPFIELDS (sizeof(dpfields) / sizeof(dpfield_t))
1225
1226 dpfield_t dpfields[] =
1227 {
1228 };
1229 */
1230
1231 /*
1232 ===============
1233 PRVM_ResetProg
1234 ===============
1235 */
1236
1237 void PRVM_ResetProg()
1238 {
1239         /*mempool_t *t1, *t2, *t3;
1240
1241         t1 = prog->progs_mempool;
1242         t2 = prog->edictstring_mempool;
1243         t3 = prog->edicts_mempool;
1244
1245         Mem_EmptyPool(prog->progs_mempool);
1246         Mem_EmptyPool(prog->edictstring_mempool);
1247         Mem_EmptyPool(prog->edicts_mempool);*/
1248         Mem_FreePool(&prog->progs_mempool);
1249         Mem_FreePool(&prog->edictstring_mempool);
1250         Mem_FreePool(&prog->edicts_mempool);
1251
1252         memset(prog,0,sizeof(prvm_prog_t));
1253
1254         /*prog->time = &prog->_time;
1255
1256         prog->progs_mempool = t1;
1257         prog->edictstring_mempool = t2;
1258         prog->edicts_mempool = t3;*/
1259
1260         PRVM_GCALL(reset_cmd)();
1261 }
1262
1263 /*
1264 ===============
1265 PRVM_LoadProgs
1266 ===============
1267 */
1268 void PRVM_LoadProgs (const char * filename, int numrequiredfunc, char **required_func)
1269 {
1270         int i;
1271         dstatement_t *st;
1272         ddef_t *infielddefs;
1273         dfunction_t *dfunctions;
1274
1275         Mem_EmptyPool(prog->progs_mempool);
1276         Mem_EmptyPool(prog->edictstring_mempool);
1277
1278         prog->progs = (dprograms_t *)FS_LoadFile (filename, prog->progs_mempool, false);
1279         if (prog->progs == NULL)
1280                 PRVM_ERROR ("PRVM_LoadProgs: couldn't load %s for %s", filename, PRVM_NAME);
1281
1282         Con_DPrintf("%s programs occupy %iK.\n", PRVM_NAME, fs_filesize/1024);
1283
1284         pr_crc = CRC_Block((qbyte *)prog->progs, fs_filesize);
1285
1286 // byte swap the header
1287         for (i = 0;i < (int) sizeof(*prog->progs) / 4;i++)
1288                 ((int *)prog->progs)[i] = LittleLong ( ((int *)prog->progs)[i] );
1289
1290         if (prog->progs->version != PROG_VERSION)
1291                 PRVM_ERROR ("%s: %s has wrong version number (%i should be %i)", PRVM_NAME, filename, prog->progs->version, PROG_VERSION);
1292         if (prog->progs->crc != prog->crc)
1293                 PRVM_ERROR ("%s: %s system vars have been modified, progdefs.h is out of date", PRVM_NAME, filename);
1294
1295         //pr_functions = (dfunction_t *)((qbyte *)progs + progs->ofs_functions);
1296         dfunctions = (dfunction_t *)((qbyte *)prog->progs + prog->progs->ofs_functions);
1297         prog->strings = (char *)prog->progs + prog->progs->ofs_strings;
1298         prog->globaldefs = (ddef_t *)((qbyte *)prog->progs + prog->progs->ofs_globaldefs);
1299
1300         // we need to expand the fielddefs list to include all the engine fields,
1301         // so allocate a new place for it
1302         infielddefs = (ddef_t *)((qbyte *)prog->progs + prog->progs->ofs_fielddefs);
1303         //                                                                                              ( + DPFIELDS                       )
1304         prog->fielddefs = Mem_Alloc(prog->progs_mempool, prog->progs->numfielddefs * sizeof(ddef_t));
1305
1306         prog->statements = (dstatement_t *)((qbyte *)prog->progs + prog->progs->ofs_statements);
1307
1308         // moved edict_size calculation down below field adding code
1309
1310         //pr_global_struct = (globalvars_t *)((qbyte *)progs + progs->ofs_globals);
1311         prog->globals = (float *)((qbyte *)prog->progs + prog->progs->ofs_globals);
1312
1313 // byte swap the lumps
1314         for (i=0 ; i<prog->progs->numstatements ; i++)
1315         {
1316                 prog->statements[i].op = LittleShort(prog->statements[i].op);
1317                 prog->statements[i].a = LittleShort(prog->statements[i].a);
1318                 prog->statements[i].b = LittleShort(prog->statements[i].b);
1319                 prog->statements[i].c = LittleShort(prog->statements[i].c);
1320         }
1321
1322         prog->functions = Mem_Alloc(prog->progs_mempool, sizeof(mfunction_t) * prog->progs->numfunctions);
1323         for (i = 0;i < prog->progs->numfunctions;i++)
1324         {
1325                 prog->functions[i].first_statement = LittleLong (dfunctions[i].first_statement);
1326                 prog->functions[i].parm_start = LittleLong (dfunctions[i].parm_start);
1327                 prog->functions[i].s_name = LittleLong (dfunctions[i].s_name);
1328                 prog->functions[i].s_file = LittleLong (dfunctions[i].s_file);
1329                 prog->functions[i].numparms = LittleLong (dfunctions[i].numparms);
1330                 prog->functions[i].locals = LittleLong (dfunctions[i].locals);
1331                 memcpy(prog->functions[i].parm_size, dfunctions[i].parm_size, sizeof(dfunctions[i].parm_size));
1332         }
1333
1334         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
1335         {
1336                 prog->globaldefs[i].type = LittleShort (prog->globaldefs[i].type);
1337                 prog->globaldefs[i].ofs = LittleShort (prog->globaldefs[i].ofs);
1338                 prog->globaldefs[i].s_name = LittleLong (prog->globaldefs[i].s_name);
1339         }
1340
1341         // copy the progs fields to the new fields list
1342         for (i = 0;i < prog->progs->numfielddefs;i++)
1343         {
1344                 prog->fielddefs[i].type = LittleShort (infielddefs[i].type);
1345                 if (prog->fielddefs[i].type & DEF_SAVEGLOBAL)
1346                         PRVM_ERROR ("PRVM_LoadProgs: prog->fielddefs[i].type & DEF_SAVEGLOBAL in %s", PRVM_NAME);
1347                 prog->fielddefs[i].ofs = LittleShort (infielddefs[i].ofs);
1348                 prog->fielddefs[i].s_name = LittleLong (infielddefs[i].s_name);
1349         }
1350
1351 /*      // append the darkplaces fields
1352         for (i = 0;i < (int) DPFIELDS;i++)
1353         {
1354                 pr_fielddefs[progs->numfielddefs].type = dpfields[i].type;
1355                 pr_fielddefs[progs->numfielddefs].ofs = progs->entityfields;
1356                 pr_fielddefs[progs->numfielddefs].s_name = PR_SetString(dpfields[i].string);
1357                 if (pr_fielddefs[progs->numfielddefs].type == ev_vector)
1358                         progs->entityfields += 3;
1359                 else
1360                         progs->entityfields++;
1361                 progs->numfielddefs++;
1362         }*/
1363
1364         // check required functions
1365         for(i=0 ; i < numrequiredfunc ; i++)
1366                 if(PRVM_ED_FindFunction(required_func[i]) == 0)
1367                         PRVM_ERROR("%s: %s not found in %s\n",PRVM_NAME, required_func[i], filename);
1368
1369         for (i=0 ; i<prog->progs->numglobals ; i++)
1370                 ((int *)prog->globals)[i] = LittleLong (((int *)prog->globals)[i]);
1371
1372         // moved edict_size calculation down here, below field adding code
1373         // LordHavoc: this no longer includes the edict_t header
1374         prog->edict_size = prog->progs->entityfields * 4;
1375         prog->edictareasize = prog->edict_size * MAX_EDICTS;
1376
1377         // LordHavoc: bounds check anything static
1378         for (i = 0,st = prog->statements;i < prog->progs->numstatements;i++,st++)
1379         {
1380                 switch (st->op)
1381                 {
1382                 case OP_IF:
1383                 case OP_IFNOT:
1384                         if ((unsigned short) st->a >= prog->progs->numglobals || st->b + i < 0 || st->b + i >= prog->progs->numstatements)
1385                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds IF/IFNOT (statement %d) in %s\n", i, PRVM_NAME);
1386                         break;
1387                 case OP_GOTO:
1388                         if (st->a + i < 0 || st->a + i >= prog->progs->numstatements)
1389                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds GOTO (statement %d) in %s\n", i, PRVM_NAME);
1390                         break;
1391                 // global global global
1392                 case OP_ADD_F:
1393                 case OP_ADD_V:
1394                 case OP_SUB_F:
1395                 case OP_SUB_V:
1396                 case OP_MUL_F:
1397                 case OP_MUL_V:
1398                 case OP_MUL_FV:
1399                 case OP_MUL_VF:
1400                 case OP_DIV_F:
1401                 case OP_BITAND:
1402                 case OP_BITOR:
1403                 case OP_GE:
1404                 case OP_LE:
1405                 case OP_GT:
1406                 case OP_LT:
1407                 case OP_AND:
1408                 case OP_OR:
1409                 case OP_EQ_F:
1410                 case OP_EQ_V:
1411                 case OP_EQ_S:
1412                 case OP_EQ_E:
1413                 case OP_EQ_FNC:
1414                 case OP_NE_F:
1415                 case OP_NE_V:
1416                 case OP_NE_S:
1417                 case OP_NE_E:
1418                 case OP_NE_FNC:
1419                 case OP_ADDRESS:
1420                 case OP_LOAD_F:
1421                 case OP_LOAD_FLD:
1422                 case OP_LOAD_ENT:
1423                 case OP_LOAD_S:
1424                 case OP_LOAD_FNC:
1425                 case OP_LOAD_V:
1426                         if ((unsigned short) st->a >= prog->progs->numglobals || (unsigned short) st->b >= prog->progs->numglobals || (unsigned short) st->c >= prog->progs->numglobals)
1427                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d)\n", i);
1428                         break;
1429                 // global none global
1430                 case OP_NOT_F:
1431                 case OP_NOT_V:
1432                 case OP_NOT_S:
1433                 case OP_NOT_FNC:
1434                 case OP_NOT_ENT:
1435                         if ((unsigned short) st->a >= prog->progs->numglobals || (unsigned short) st->c >= prog->progs->numglobals)
1436                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d) in %s\n", i, PRVM_NAME);
1437                         break;
1438                 // 2 globals
1439                 case OP_STOREP_F:
1440                 case OP_STOREP_ENT:
1441                 case OP_STOREP_FLD:
1442                 case OP_STOREP_S:
1443                 case OP_STOREP_FNC:
1444                 case OP_STORE_F:
1445                 case OP_STORE_ENT:
1446                 case OP_STORE_FLD:
1447                 case OP_STORE_S:
1448                 case OP_STORE_FNC:
1449                 case OP_STATE:
1450                 case OP_STOREP_V:
1451                 case OP_STORE_V:
1452                         if ((unsigned short) st->a >= prog->progs->numglobals || (unsigned short) st->b >= prog->progs->numglobals)
1453                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d)\n in %s", i, PRVM_NAME);
1454                         break;
1455                 // 1 global
1456                 case OP_CALL0:
1457                 case OP_CALL1:
1458                 case OP_CALL2:
1459                 case OP_CALL3:
1460                 case OP_CALL4:
1461                 case OP_CALL5:
1462                 case OP_CALL6:
1463                 case OP_CALL7:
1464                 case OP_CALL8:
1465                 case OP_DONE:
1466                 case OP_RETURN:
1467                         if ((unsigned short) st->a >= prog->progs->numglobals)
1468                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d) in %s\n", i, PRVM_NAME);
1469                         break;
1470                 default:
1471                         PRVM_ERROR("PRVM_LoadProgs: unknown opcode %d at statement %d in %s\n", st->op, i, PRVM_NAME);
1472                         break;
1473                 }
1474         }
1475
1476         PRVM_Init_Exec();
1477
1478         prog->loaded = TRUE;
1479
1480         // set flags & ddef_ts in prog
1481
1482         prog->flag = 0;
1483
1484         prog->self = PRVM_ED_FindGlobal("self");
1485
1486         if(PRVM_ED_FindGlobal("time"))
1487                 prog->time = &PRVM_G_FLOAT(PRVM_ED_FindGlobal("time")->ofs);
1488
1489         if(PRVM_ED_FindField ("chain"))
1490                 prog->flag |= PRVM_FE_CHAIN;
1491
1492         if(PRVM_ED_FindField ("classname"))
1493                 prog->flag |= PRVM_FE_CLASSNAME;
1494
1495         if(PRVM_ED_FindField ("nextthink") && PRVM_ED_FindField ("frame") && PRVM_ED_FindField ("think")
1496                 && prog->flag && prog->self)
1497                 prog->flag |= PRVM_OP_STATE;
1498
1499         PRVM_GCALL(reset_cmd)();
1500         PRVM_GCALL(init_cmd)();
1501
1502         // init mempools
1503         PRVM_MEM_Alloc();
1504 }
1505
1506
1507 void PRVM_Fields_f (void)
1508 {
1509         int i, j, ednum, used, usedamount;
1510         int *counts;
1511         char tempstring[5000], tempstring2[260], *name;
1512         prvm_edict_t *ed;
1513         ddef_t *d;
1514         int *v;
1515
1516         // TODO
1517         /*
1518         if (!sv.active)
1519         {
1520                 Con_Print("no progs loaded\n");
1521                 return;
1522         }
1523         */
1524
1525         if(Cmd_Argc() != 2)
1526         {
1527                 Con_Print("prvm_fields <program name>\n");
1528                 return;
1529         }
1530
1531         PRVM_Begin;
1532         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
1533                 return;
1534
1535         counts = Mem_Alloc(tempmempool, prog->progs->numfielddefs * sizeof(int));
1536         for (ednum = 0;ednum < prog->max_edicts;ednum++)
1537         {
1538                 ed = PRVM_EDICT_NUM(ednum);
1539                 if (ed->p.e->free)
1540                         continue;
1541                 for (i = 1;i < prog->progs->numfielddefs;i++)
1542                 {
1543                         d = &prog->fielddefs[i];
1544                         name = PRVM_GetString(d->s_name);
1545                         if (name[strlen(name)-2] == '_')
1546                                 continue;       // skip _x, _y, _z vars
1547                         v = (int *)((char *)ed->v + d->ofs*4);
1548                         // if the value is still all 0, skip the field
1549                         for (j = 0;j < prvm_type_size[d->type & ~DEF_SAVEGLOBAL];j++)
1550                         {
1551                                 if (v[j])
1552                                 {
1553                                         counts[i]++;
1554                                         break;
1555                                 }
1556                         }
1557                 }
1558         }
1559         used = 0;
1560         usedamount = 0;
1561         tempstring[0] = 0;
1562         for (i = 0;i < prog->progs->numfielddefs;i++)
1563         {
1564                 d = &prog->fielddefs[i];
1565                 name = PRVM_GetString(d->s_name);
1566                 if (name[strlen(name)-2] == '_')
1567                         continue;       // skip _x, _y, _z vars
1568                 switch(d->type & ~DEF_SAVEGLOBAL)
1569                 {
1570                 case ev_string:
1571                         strcat(tempstring, "string   ");
1572                         break;
1573                 case ev_entity:
1574                         strcat(tempstring, "entity   ");
1575                         break;
1576                 case ev_function:
1577                         strcat(tempstring, "function ");
1578                         break;
1579                 case ev_field:
1580                         strcat(tempstring, "field    ");
1581                         break;
1582                 case ev_void:
1583                         strcat(tempstring, "void     ");
1584                         break;
1585                 case ev_float:
1586                         strcat(tempstring, "float    ");
1587                         break;
1588                 case ev_vector:
1589                         strcat(tempstring, "vector   ");
1590                         break;
1591                 case ev_pointer:
1592                         strcat(tempstring, "pointer  ");
1593                         break;
1594                 default:
1595                         sprintf (tempstring2, "bad type %i ", d->type & ~DEF_SAVEGLOBAL);
1596                         strcat(tempstring, tempstring2);
1597                         break;
1598                 }
1599                 if (strlen(name) > 256)
1600                 {
1601                         memcpy (tempstring2, name, 256);
1602                         tempstring2[256] = tempstring2[257] = tempstring2[258] = '.';
1603                         tempstring2[259] = 0;
1604                         name = tempstring2;
1605                 }
1606                 strcat(tempstring, name);
1607                 for (j = strlen(name);j < 25;j++)
1608                         strcat(tempstring, " ");
1609                 sprintf(tempstring2, "%5d", counts[i]);
1610                 strcat(tempstring, tempstring2);
1611                 strcat(tempstring, "\n");
1612                 if (strlen(tempstring) >= 4096)
1613                 {
1614                         Con_Print(tempstring);
1615                         tempstring[0] = 0;
1616                 }
1617                 if (counts[i])
1618                 {
1619                         used++;
1620                         usedamount += prvm_type_size[d->type & ~DEF_SAVEGLOBAL];
1621                 }
1622         }
1623         Mem_Free(counts);
1624         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);
1625
1626         PRVM_End;
1627 }
1628
1629 void PRVM_Globals_f (void)
1630 {
1631         int i;
1632         // TODO
1633         /*if (!sv.active)
1634         {
1635                 Con_Print("no progs loaded\n");
1636                 return;
1637         }*/
1638         if(Cmd_Argc () != 2)
1639         {
1640                 Con_Print("prvm_globals <program name>\n");
1641                 return;
1642         }
1643
1644         PRVM_Begin;
1645         if(!PRVM_SetProgFromString (Cmd_Argv (1)))
1646                 return;
1647
1648         Con_Printf("%s :", PRVM_NAME);
1649
1650         for (i = 0;i < prog->progs->numglobaldefs;i++)
1651                 Con_Printf("%s\n", PRVM_GetString(prog->globaldefs[i].s_name));
1652         Con_Printf("%i global variables, totalling %i bytes\n", prog->progs->numglobals, prog->progs->numglobals * 4);
1653
1654         PRVM_End;
1655 }
1656
1657 /*
1658 ===============
1659 PRVM_Global
1660 ===============
1661 */
1662 void PRVM_Global_f(void)
1663 {
1664         ddef_t *global;
1665         if( Cmd_Argc() != 3 ) {
1666                 Con_Printf( "prvm_global <program name> <global name>\n" );
1667                 return;
1668         }
1669
1670         PRVM_Begin;
1671         if( !PRVM_SetProgFromString( Cmd_Argv(1) ) )
1672                 return;
1673
1674         global = PRVM_ED_FindGlobal( Cmd_Argv(2) );
1675         if( !global )
1676                 Con_Printf( "No global '%s' in %s!\n", Cmd_Argv(2), Cmd_Argv(1) );
1677         else
1678                 Con_Printf( "%s: %s\n", Cmd_Argv(2), PRVM_ValueString( global->type, (prvm_eval_t *) &prog->globals[ global->ofs ] ) );
1679         PRVM_End;
1680 }
1681
1682 /*
1683 ===============
1684 PRVM_Init
1685 ===============
1686 */
1687 void PRVM_Init (void)
1688 {
1689         Cmd_AddCommand ("prvm_edict", PRVM_ED_PrintEdict_f);
1690         Cmd_AddCommand ("prvm_edicts", PRVM_ED_PrintEdicts_f);
1691         Cmd_AddCommand ("prvm_edictcount", PRVM_ED_Count_f);
1692         Cmd_AddCommand ("prvm_profile", PRVM_Profile_f);
1693         Cmd_AddCommand ("prvm_fields", PRVM_Fields_f);
1694         Cmd_AddCommand ("prvm_globals", PRVM_Globals_f);
1695         Cmd_AddCommand ("prvm_global", PRVM_Global_f);
1696         Cmd_AddCommand ("prvm_edictset", PRVM_ED_EdictSet_f);
1697         // LordHavoc: optional runtime bounds checking (speed drain, but worth it for security, on by default - breaks most QCCX features (used by CRMod and others))
1698         Cvar_RegisterVariable (&prvm_boundscheck);
1699         Cvar_RegisterVariable (&prvm_traceqc);
1700
1701         //VM_Cmd_Init();
1702 }
1703
1704 /*
1705 ===============
1706 PRVM_InitProg
1707 ===============
1708 */
1709 void PRVM_InitProg(int prognr)
1710 {
1711         if(prognr < 0 || prognr >= PRVM_MAXPROGS)
1712                 Sys_Error("PRVM_InitProg: Invalid program number %i\n",prognr);
1713
1714         prog = &prog_list[prognr];
1715
1716         if(prog->loaded)
1717                 PRVM_ResetProg();
1718
1719         memset(prog, 0, sizeof(prvm_prog_t));
1720
1721         prog->time = &prog->_time;
1722 }
1723
1724 int PRVM_GetProgNr()
1725 {
1726         return prog - prog_list;
1727 }
1728
1729 // LordHavoc: turned PRVM_EDICT_NUM into a #define for speed reasons
1730 prvm_edict_t *PRVM_EDICT_NUM_ERROR(int n, char *filename, int fileline)
1731 {
1732         PRVM_ERROR ("PRVM_EDICT_NUM: %s: bad number %i (called at %s:%i)", PRVM_NAME, n, filename, fileline);
1733         return NULL;
1734 }
1735
1736 void PRVM_ProcessError(void)
1737 {
1738         if(prog)
1739                 PRVM_GCALL(error_cmd)();
1740 }
1741
1742 /*
1743 int NUM_FOR_EDICT_ERROR(edict_t *e)
1744 {
1745         Host_Error ("NUM_FOR_EDICT: bad pointer %p (world is %p, entity number would be %i)", e, sv.edicts, e - sv.edicts);
1746         return 0;
1747 }
1748
1749 int NUM_FOR_EDICT(edict_t *e)
1750 {
1751         int n;
1752         n = e - sv.edicts;
1753         if ((unsigned int)n >= MAX_EDICTS)
1754                 Host_Error ("NUM_FOR_EDICT: bad pointer");
1755         return n;
1756 }
1757
1758 //int NoCrash_NUM_FOR_EDICT(edict_t *e)
1759 //{
1760 //      return e - sv.edicts;
1761 //}
1762
1763 //#define       EDICT_TO_PROG(e) ((qbyte *)(((edict_t *)e)->v) - (qbyte *)(sv.edictsfields))
1764 //#define PROG_TO_EDICT(e) (sv.edicts + ((e) / (progs->entityfields * 4)))
1765 int EDICT_TO_PROG(edict_t *e)
1766 {
1767         int n;
1768         n = e - sv.edicts;
1769         if ((unsigned int)n >= (unsigned int)sv.max_edicts)
1770                 Host_Error("EDICT_TO_PROG: invalid edict %8p (number %i compared to world at %8p)\n", e, n, sv.edicts);
1771         return n;// EXPERIMENTAL
1772         //return (qbyte *)e->v - (qbyte *)sv.edictsfields;
1773 }
1774 edict_t *PROG_TO_EDICT(int n)
1775 {
1776         if ((unsigned int)n >= (unsigned int)sv.max_edicts)
1777                 Host_Error("PROG_TO_EDICT: invalid edict number %i\n", n);
1778         return sv.edicts + n; // EXPERIMENTAL
1779         //return sv.edicts + ((n) / (progs->entityfields * 4));
1780 }
1781 */
1782