csprogs.c

   1 #include "quakedef.h"
   2 #include "progsvm.h"
   3 #include "clprogdefs.h"
   4 #include "csprogs.h"
   5
   6 //============================================================================
   7 // Client prog handling
   8 //[515]: omg !!! optimize it ! a lot of hacks here and there also :P
   9
  10 #define CSQC_RETURNVAL  prog->globals.generic[OFS_RETURN]
  11 #define CSQC_BEGIN              csqc_tmpprog=prog;prog=0;PRVM_SetProg(PRVM_CLIENTPROG);
  12 #define CSQC_END                prog=csqc_tmpprog;
  13 static prvm_prog_t *csqc_tmpprog;
  14
  15 //[515]: these are required funcs
  16 #define CL_F_INIT                               "CSQC_Init"
  17 #define CL_F_INPUTEVENT                 "CSQC_InputEvent"
  18 #define CL_F_UPDATEVIEW                 "CSQC_UpdateView"
  19 #define CL_F_CONSOLECOMMAND             "CSQC_ConsoleCommand"
  20 #define CL_F_SHUTDOWN                   "CSQC_Shutdown"
  21
  22 //[515]: these are optional
  23 #define CL_F_PARSE_TEMPENTITY   "CSQC_Parse_TempEntity" //[515]: very helpfull when you want to create your own particles/decals/etc for effects that allready exist
  24 #define CL_F_PARSE_STUFFCMD             "CSQC_Parse_StuffCmd"
  25 #define CL_F_PARSE_PRINT                "CSQC_Parse_Print"
  26 #define CL_F_PARSE_CENTERPRINT  "CSQC_Parse_CenterPrint"
  27 #define CL_F_ENT_UPDATE                 "CSQC_Ent_Update"
  28 #define CL_F_ENT_REMOVE                 "CSQC_Ent_Remove"
  29 #define CL_F_EVENT                              "CSQC_Event"    //[515]: engine call this for its own needs
  30                                                                                                 //so csqc can do some things according to what engine it's running on
  31                                                                                                 //example: to say about edicts increase, whatever...
  32
  33 #define CSQC_PRINTBUFFERLEN             8192    //[515]: enough ?
  34
  35 static char *cl_required_func[] =
  36 {
  37         CL_F_INIT,
  38         CL_F_INPUTEVENT,
  39         CL_F_UPDATEVIEW,
  40         CL_F_CONSOLECOMMAND,
  41         CL_F_SHUTDOWN
  42 };
  43
  44 static int cl_numrequiredfunc = sizeof(cl_required_func) / sizeof(char*);
  45
  46 unsigned int                    csqc_drawmask = 0;
  47 static char                             *csqc_printtextbuf = NULL;
  48 static unsigned short   *csqc_sv2csqcents;      //[515]: server entities numbers on client side. FIXME : make pointers instead of numbers ?
  49
  50 static mfunction_t      *CSQC_Parse_TempEntity;
  51 static mfunction_t      *CSQC_Parse_StuffCmd;
  52 static mfunction_t      *CSQC_Parse_Print;
  53 static mfunction_t      *CSQC_Parse_CenterPrint;
  54 static mfunction_t      *CSQC_Ent_Update;
  55 static mfunction_t      *CSQC_Ent_Remove;
  56 static mfunction_t      *CSQC_Event;
  57
  58 static int csqc_fieldoff_alpha;
  59 static int csqc_fieldoff_colormod;
  60 static int csqc_fieldoff_effects;
  61 int csqc_fieldoff_scale;
  62 int csqc_fieldoff_renderflags;
  63 int csqc_fieldoff_tag_entity;
  64 int csqc_fieldoff_tag_index;
  65
  66 qboolean csqc_loaded = false;
  67
  68 extern entity_t *cl_csqcentities;
  69 extern unsigned char    *cl_csqcentities_active;
  70 extern int              cl_num_csqcentities;
  71
  72 vec3_t csqc_origin, csqc_angles;
  73 static double csqc_frametime = 0;
  74 int csqc_buttons;
  75
  76 static mempool_t *csqc_mempool;
  77
  78 static void CL_VM_FindEdictFieldOffsets (void)
  79 {
  80         csqc_fieldoff_alpha                     = PRVM_ED_FindFieldOffset("alpha");
  81         csqc_fieldoff_scale                     = PRVM_ED_FindFieldOffset("scale");
  82         csqc_fieldoff_colormod          = PRVM_ED_FindFieldOffset("colormod");
  83         csqc_fieldoff_renderflags       = PRVM_ED_FindFieldOffset("renderflags");
  84         csqc_fieldoff_effects           = PRVM_ED_FindFieldOffset("effects");
  85         csqc_fieldoff_tag_entity        = PRVM_ED_FindFieldOffset("tag_entity");
  86         csqc_fieldoff_tag_index         = PRVM_ED_FindFieldOffset("tag_index");
  87
  88         CSQC_Parse_TempEntity           = PRVM_ED_FindFunction (CL_F_PARSE_TEMPENTITY);
  89         CSQC_Parse_StuffCmd                     = PRVM_ED_FindFunction (CL_F_PARSE_STUFFCMD);
  90         CSQC_Parse_Print                        = PRVM_ED_FindFunction (CL_F_PARSE_PRINT);
  91         CSQC_Parse_CenterPrint          = PRVM_ED_FindFunction (CL_F_PARSE_CENTERPRINT);
  92         CSQC_Ent_Update                         = PRVM_ED_FindFunction (CL_F_ENT_UPDATE);
  93         CSQC_Ent_Remove                         = PRVM_ED_FindFunction (CL_F_ENT_REMOVE);
  94         CSQC_Event                                      = PRVM_ED_FindFunction (CL_F_EVENT);
  95
  96         if(CSQC_Parse_Print)
  97         {
  98                 csqc_printtextbuf = Mem_Alloc(csqc_mempool, CSQC_PRINTBUFFERLEN);
  99                 csqc_printtextbuf[0] = 0;
 100         }
 101 }
 102
 103 void CL_VM_Error (const char *format, ...)      //[515]: hope it will be never executed =)
 104 {
 105         char errorstring[4096];
 106         va_list argptr;
 107
 108         va_start (argptr, format);
 109         dpvsnprintf (errorstring, sizeof(errorstring), format, argptr);
 110         va_end (argptr);
 111 //      Con_Printf( "CL_VM_Error: %s\n", errorstring );
 112
 113         PRVM_Crash();
 114         csqc_loaded = false;
 115         Mem_FreePool(&csqc_mempool);
 116
 117         Cvar_SetValueQuick(&csqc_progcrc, 0);
 118
 119 //      Host_AbortCurrentFrame();       //[515]: hmmm... if server says it needs csqc then client MUST disconnect
 120         Host_Error(va("CL_VM_Error: %s", errorstring));
 121 }
 122
 123 //[515]: set globals before calling R_UpdateView, WEIRD CRAP
 124 static void CSQC_SetGlobals (void)
 125 {
 126         //extern cvar_t sv_accelerate, sv_friction, sv_gravity, sv_stopspeed, sv_maxspeed;
 127
 128         CSQC_BEGIN
 129                 *prog->time = cl.time;
 130                 prog->globals.client->frametime = cl.time - csqc_frametime;
 131                 csqc_frametime = cl.time;
 132                 prog->globals.client->servercommandframe = cl.servermovesequence;
 133                 prog->globals.client->clientcommandframe = cl.movemessages;
 134                 VectorCopy(cl.viewangles, prog->globals.client->input_angles);
 135                 VectorCopy(cl.viewangles, csqc_angles);
 136                 prog->globals.client->input_buttons = csqc_buttons;
 137                 VectorSet(prog->globals.client->input_movevalues, cl.cmd.forwardmove, cl.cmd.sidemove, cl.cmd.upmove);
 138                 //VectorCopy(cl.movement_origin, csqc_origin);
 139                 VectorCopy(cl_entities[cl.viewentity].render.origin, csqc_origin);
 140                 VectorCopy(csqc_origin, prog->globals.client->pmove_org);
 141                 prog->globals.client->maxclients = cl.maxclients;
 142                 //VectorCopy(cl.movement_velocity, prog->globals.client->pmove_vel);
 143                 VectorCopy(cl.velocity, prog->globals.client->pmove_vel);
 144         CSQC_END
 145 }
 146
 147 static void CSQC_Predraw (prvm_edict_t *ed)
 148 {
 149         int b;
 150         if(!ed->fields.client->predraw)
 151                 return;
 152         b = prog->globals.client->self;
 153         prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 154         PRVM_ExecuteProgram(ed->fields.client->predraw, "CSQC_Predraw: NULL function\n");
 155         prog->globals.client->self = b;
 156 }
 157
 158 static void CSQC_Think (prvm_edict_t *ed)
 159 {
 160         int b;
 161         if(ed->fields.client->think)
 162         if(ed->fields.client->nextthink && ed->fields.client->nextthink <= *prog->time)
 163         {
 164                 ed->fields.client->nextthink = 0;
 165                 b = prog->globals.client->self;
 166                 prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 167                 PRVM_ExecuteProgram(ed->fields.client->think, "CSQC_Think: NULL function\n");
 168                 prog->globals.client->self = b;
 169         }
 170 }
 171
 172 //[515]: weird too
 173 static qboolean CSQC_EdictToEntity (prvm_edict_t *ed, entity_t *e)
 174 {
 175         int i;
 176         prvm_eval_t *val;
 177
 178         i = ed->fields.client->modelindex;
 179         e->state_current.modelindex = 0;
 180         if(i >= MAX_MODELS || i <= -MAX_MODELS) //[515]: make work as error ?
 181         {
 182                 Con_Print("CSQC_EdictToEntity: modelindex >= MAX_MODELS\n");
 183                 ed->fields.client->modelindex = 0;
 184         }
 185         else
 186                 e->state_current.modelindex = i;
 187         if(!e->state_current.modelindex)
 188                 return false;
 189
 190         e->state_current.time = cl.time;
 191
 192         i = 0;
 193         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_renderflags)) && val->_float)
 194         {
 195                 i = val->_float;
 196                 if(i & RF_VIEWMODEL)    e->state_current.flags |= RENDER_VIEWMODEL;
 197                 if(i & RF_EXTERNALMODEL)e->state_current.flags |= RENDER_EXTERIORMODEL;
 198                 if(i & RF_DEPTHHACK)    e->state_current.effects |= EF_NODEPTHTEST;
 199                 if(i & RF_ADDITIVE)             e->state_current.effects |= EF_ADDITIVE;
 200         }
 201
 202         if(i & RF_USEAXIS)      //FIXME!!!
 203                 VectorCopy(ed->fields.client->angles, e->persistent.newangles);
 204         else
 205                 VectorCopy(ed->fields.client->angles, e->persistent.newangles);
 206
 207         VectorCopy(ed->fields.client->origin, e->persistent.neworigin);
 208         VectorCopy(ed->fields.client->origin, e->state_current.origin);
 209         e->state_current.colormap = ed->fields.client->colormap;
 210         e->state_current.effects = ed->fields.client->effects;
 211         e->state_current.frame = ed->fields.client->frame;
 212         e->state_current.skin = ed->fields.client->skin;
 213
 214         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_alpha)) && val->_float)             e->state_current.alpha = val->_float*255;
 215         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_scale)) && val->_float)             e->state_current.scale = val->_float*16;
 216         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_colormod)) && VectorLength2(val->vector))   VectorScale(val->vector, 32, e->state_current.colormod);
 217         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_effects)) && val->_float)   e->state_current.effects = val->_float;
 218         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_tag_entity)) && val->edict)
 219         {
 220                 e->state_current.tagentity = val->edict;
 221                 if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_tag_index)) && val->_float)
 222                         e->state_current.tagindex = val->_float;
 223         }
 224
 225         return true;
 226 }
 227
 228 void CSQC_ClearCSQCEntities (void)
 229 {
 230         memset(cl_csqcentities_active, 0, sizeof(cl_csqcentities_active));
 231         cl_num_csqcentities = 0;
 232         csqc_drawmask = 0;
 233 }
 234
 235 void CL_ExpandCSQCEntities (int num);
 236
 237 void CSQC_RelinkCSQCEntities (void)
 238 {
 239         int                     i;
 240         entity_t        *e;
 241         prvm_edict_t *ed;
 242
 243         *prog->time = cl.time;
 244         for(i=1;i<prog->num_edicts;i++)
 245         {
 246                 if(i >= cl_max_csqcentities)
 247                         CL_ExpandCSQCEntities(i);
 248
 249                 e = &cl_csqcentities[i];
 250                 ed = &prog->edicts[i];
 251                 if(ed->priv.required->free)
 252                 {
 253                         e->state_current.active = false;
 254                         cl_csqcentities_active[i] = false;
 255                         continue;
 256                 }
 257                 VectorAdd(ed->fields.client->origin, ed->fields.client->mins, ed->fields.client->absmin);
 258                 VectorAdd(ed->fields.client->origin, ed->fields.client->maxs, ed->fields.client->absmax);
 259                 CSQC_Think(ed);
 260                 if(ed->priv.required->free)
 261                 {
 262                         e->state_current.active = false;
 263                         cl_csqcentities_active[i] = false;
 264                         continue;
 265                 }
 266                 CSQC_Predraw(ed);
 267                 if(ed->priv.required->free)
 268                 {
 269                         e->state_current.active = false;
 270                         cl_csqcentities_active[i] = false;
 271                         continue;
 272                 }
 273                 if(!cl_csqcentities_active[i])
 274                 if(!((int)ed->fields.client->drawmask & csqc_drawmask))
 275                         continue;
 276
 277                 e->state_previous       = e->state_current;
 278                 e->state_current        = defaultstate;
 279                 if((cl_csqcentities_active[i] = CSQC_EdictToEntity(ed, e)))
 280                 {
 281                         if(!e->state_current.active)
 282                         {
 283                                 if(!e->state_previous.active)
 284                                         VectorCopy(ed->fields.client->origin, e->persistent.trail_origin);//[515]: hack to make good gibs =/
 285                                 e->state_previous = e->state_current;
 286                                 e->state_current.active = true;
 287                         }
 288                         e->persistent.lerpdeltatime = 0;//prog->globals.client->frametime;
 289                         cl_num_csqcentities++;
 290                 }
 291         }
 292 }
 293
 294 //[515]: omfg... it's all weird =/
 295 void CSQC_AddEntity (int n)
 296 {
 297         cl_csqcentities_active[n] = true;
 298 }
 299
 300 qboolean CL_VM_InputEvent (qboolean pressed, int key)
 301 {
 302         qboolean r;
 303         if(!csqc_loaded)
 304                 return false;
 305         CSQC_BEGIN
 306                 *prog->time = cl.time;
 307                 PRVM_G_FLOAT(OFS_PARM0) = pressed;
 308                 PRVM_G_FLOAT(OFS_PARM1) = key;
 309                 PRVM_ExecuteProgram (prog->globals.client->CSQC_InputEvent, CL_F_INPUTEVENT);
 310                 r = CSQC_RETURNVAL;
 311         CSQC_END
 312         return r;
 313 }
 314
 315 qboolean CL_VM_UpdateView (void)
 316 {
 317 //      vec3_t oldangles;
 318         if(!csqc_loaded)
 319                 return false;
 320         CSQC_BEGIN
 321                 //VectorCopy(cl.viewangles, oldangles);
 322                 *prog->time = cl.time;
 323                 CSQC_SetGlobals();
 324                 csqc_drawmask = 0;
 325                 cl_num_csqcentities = 0;
 326                 PRVM_ExecuteProgram (prog->globals.client->CSQC_UpdateView, CL_F_UPDATEVIEW);
 327                 //VectorCopy(oldangles, cl.viewangles);
 328         CSQC_END
 329         csqc_frame = false;
 330         return true;
 331 }
 332
 333 qboolean CL_VM_ConsoleCommand (const char *cmd)
 334 {
 335         qboolean r;
 336         if(!csqc_loaded)
 337                 return false;
 338         CSQC_BEGIN
 339                 *prog->time = cl.time;
 340                 PRVM_G_INT(OFS_PARM0) = PRVM_SetEngineString(cmd);
 341                 PRVM_ExecuteProgram (prog->globals.client->CSQC_ConsoleCommand, CL_F_CONSOLECOMMAND);
 342                 r = CSQC_RETURNVAL;
 343         CSQC_END
 344         return r;
 345 }
 346
 347 qboolean CL_VM_Parse_TempEntity (void)
 348 {
 349         int                     t;
 350         qboolean        r;
 351         if(!csqc_loaded || !CSQC_Parse_TempEntity)
 352                 return false;
 353         t = msg_readcount;
 354         CSQC_BEGIN
 355                 *prog->time = cl.time;
 356                 PRVM_ExecuteProgram ((func_t)(CSQC_Parse_TempEntity - prog->functions), CL_F_PARSE_TEMPENTITY);
 357                 r = CSQC_RETURNVAL;
 358         CSQC_END
 359         if(!r)
 360         {
 361                 msg_readcount = t;
 362                 msg_badread = false;
 363         }
 364         return r;
 365 }
 366
 367 void CL_VM_Parse_StuffCmd (const char *msg)
 368 {
 369         if(!csqc_loaded)        //[515]: add more here
 370         if(msg[0] == 'c')
 371         if(msg[1] == 's')
 372         if(msg[2] == 'q')
 373         if(msg[3] == 'c')
 374         {
 375                 Cvar_SetQuick(&csqc_progcrc, "0");
 376                 csqc_progcrc.flags = 0;
 377                 Cmd_ExecuteString (msg, src_command);
 378                 csqc_progcrc.flags = CVAR_READONLY;
 379                 return;
 380         }
 381         if(!csqc_loaded || !CSQC_Parse_StuffCmd)
 382         {
 383                 Cbuf_AddText(msg);
 384                 return;
 385         }
 386         CSQC_BEGIN
 387                 *prog->time = cl.time;
 388                 PRVM_G_INT(OFS_PARM0) = PRVM_SetEngineString(msg);
 389                 PRVM_ExecuteProgram ((func_t)(CSQC_Parse_StuffCmd - prog->functions), CL_F_PARSE_STUFFCMD);
 390         CSQC_END
 391 }
 392
 393 static void CL_VM_Parse_Print (const char *msg)
 394 {
 395         CSQC_BEGIN
 396                 *prog->time = cl.time;
 397                 PRVM_G_INT(OFS_PARM0) = PRVM_SetEngineString(msg);
 398                 PRVM_ExecuteProgram ((func_t)(CSQC_Parse_Print - prog->functions), CL_F_PARSE_PRINT);
 399         CSQC_END
 400 }
 401
 402 void CSQC_AddPrintText (const char *msg)
 403 {
 404         size_t i;
 405         if(!csqc_loaded || !CSQC_Parse_Print)
 406         {
 407                 Con_Print(msg);
 408                 return;
 409         }
 410         i = strlen(msg)-1;
 411         if(msg[i] != '\n' && msg[i] != '\r')
 412         {
 413                 if(strlen(csqc_printtextbuf)+i >= CSQC_PRINTBUFFERLEN)
 414                 {
 415                         CL_VM_Parse_Print(csqc_printtextbuf);
 416                         csqc_printtextbuf[0] = 0;
 417                 }
 418                 else
 419                         strcat(csqc_printtextbuf, msg);
 420                 return;
 421         }
 422         strcat(csqc_printtextbuf, msg);
 423         CL_VM_Parse_Print(csqc_printtextbuf);
 424         csqc_printtextbuf[0] = 0;
 425 }
 426
 427 void CL_VM_Parse_CenterPrint (const char *msg)
 428 {
 429         if(!csqc_loaded || !CSQC_Parse_CenterPrint)
 430         {
 431                 SCR_CenterPrint((char*)msg);
 432                 return;
 433         }
 434         CSQC_BEGIN
 435                 *prog->time = cl.time;
 436                 PRVM_G_INT(OFS_PARM0) = PRVM_SetEngineString(msg);
 437                 PRVM_ExecuteProgram ((func_t)(CSQC_Parse_CenterPrint - prog->functions), CL_F_PARSE_CENTERPRINT);
 438         CSQC_END
 439 }
 440
 441 float CL_VM_Event (float event)         //[515]: needed ? I'd say "YES", but don't know for what :D
 442 {
 443         float r;
 444         if(!csqc_loaded || !CSQC_Event)
 445                 return 0;
 446         CSQC_BEGIN
 447                 *prog->time = cl.time;
 448                 PRVM_G_FLOAT(OFS_PARM0) = event;
 449                 PRVM_ExecuteProgram ((func_t)(CSQC_Event - prog->functions), CL_F_EVENT);
 450                 r = CSQC_RETURNVAL;
 451         CSQC_END
 452         return r;
 453 }
 454
 455 void CSQC_ReadEntities (void)
 456 {
 457         unsigned short entnum, oldself, realentnum;
 458         CSQC_BEGIN
 459                 *prog->time = cl.time;
 460                 oldself = prog->globals.client->self;
 461                 while(1)
 462                 {
 463                         entnum = MSG_ReadShort();
 464                         if(!entnum)
 465                                 return;
 466                         realentnum = entnum & 0x7FFF;
 467                         prog->globals.client->self = csqc_sv2csqcents[realentnum];
 468                         if(entnum & 0x8000)
 469                         {
 470                                 if(prog->globals.client->self)
 471                                 {
 472                                         PRVM_ExecuteProgram((func_t)(CSQC_Ent_Remove - prog->functions), CL_F_ENT_REMOVE);
 473                                         csqc_sv2csqcents[realentnum] = 0;
 474                                 }
 475                                 else
 476                                         Con_Printf("Smth bad happens in csqc...\n");    //[515]: never happens ?
 477                         }
 478                         else
 479                         {
 480                                 if(!prog->globals.client->self)
 481                                 {
 482                                         prvm_edict_t    *ed;
 483                                         ed = PRVM_ED_Alloc();
 484                                         ed->fields.client->entnum = realentnum;
 485                                         prog->globals.client->self = csqc_sv2csqcents[realentnum] = PRVM_EDICT_TO_PROG(ed);
 486                                         PRVM_G_FLOAT(OFS_PARM0) = 1;
 487                                 }
 488                                 else
 489                                         PRVM_G_FLOAT(OFS_PARM0) = 0;
 490                                 PRVM_ExecuteProgram((func_t)(CSQC_Ent_Update - prog->functions), CL_F_ENT_UPDATE);
 491                         }
 492                 }
 493                 prog->globals.client->self = oldself;
 494         CSQC_END
 495 }
 496
 497 void Cmd_ClearCsqcFuncs (void);
 498
 499 void CL_VM_Init (void)
 500 {
 501         entity_t *ent;
 502
 503         csqc_loaded = false;
 504         memset(cl.csqc_model_precache, 0, sizeof(cl.csqc_model_precache));
 505         memset(&cl.csqc_vidvars, true, sizeof(csqc_vidvars_t));
 506
 507         if(!FS_FileExists(csqc_progname.string))
 508         {
 509                 if(!sv.active && csqc_progcrc.integer)
 510                 {
 511                         Con_Printf("CL_VM_Init: server requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 512                         CL_Disconnect();
 513                 }
 514                 return;
 515         }
 516         else
 517                 if(!sv.active && !csqc_progcrc.integer) //[515]: because cheaters may use csqc while server didn't allowed it !
 518                 {
 519                         Con_Printf("CL_VM_Init: server didn't sent CSQC crc, so CSQC is disabled\n");
 520                         return;
 521                 }
 522
 523         PRVM_Begin;
 524         PRVM_InitProg(PRVM_CLIENTPROG);
 525
 526         // allocate the mempools
 527         prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
 528         prog->headercrc = CL_PROGHEADER_CRC;
 529         prog->edictprivate_size = 0; // no private struct used
 530         prog->name = csqc_progname.string;
 531         prog->num_edicts = 1;
 532         prog->limit_edicts = CL_MAX_EDICTS;
 533         prog->extensionstring = vm_cl_extensions;
 534         prog->builtins = vm_cl_builtins;
 535         prog->numbuiltins = vm_cl_numbuiltins;
 536         prog->init_cmd = VM_CL_Cmd_Init;
 537         prog->reset_cmd = VM_CL_Cmd_Reset;
 538         prog->error_cmd = CL_VM_Error;
 539
 540         PRVM_LoadProgs(csqc_progname.string, cl_numrequiredfunc, cl_required_func, 0, NULL);
 541
 542         if(!sv.active && !cls.demoplayback && prog->filecrc != (unsigned short)csqc_progcrc.integer)
 543         {
 544                 Con_Printf("^1Your CSQC version differs from server's one (%i!=%i)\n", prog->filecrc, csqc_progcrc.integer);
 545                 PRVM_ResetProg();
 546                 CL_Disconnect();
 547                 return;
 548         }
 549
 550         if(prog->loaded)
 551         {
 552                 Cvar_SetValueQuick(&csqc_progcrc, prog->filecrc);
 553                 Con_Printf("CSQC ^5loaded (crc=%i)\n", csqc_progcrc.integer);
 554         }
 555         else
 556         {
 557                 CL_VM_Error("CSQC ^2failed to load\n");
 558                 if(!sv.active)
 559                         CL_Disconnect();
 560                 return;
 561         }
 562
 563         csqc_mempool = Mem_AllocPool("CSQC", 0, NULL);
 564
 565         //[515]: optional fields & funcs
 566         CL_VM_FindEdictFieldOffsets();
 567
 568         // set time
 569         *prog->time = cl.time;
 570         csqc_frametime = 0;
 571
 572         prog->globals.client->mapname = PRVM_SetEngineString(cl.worldmodel->name);
 573         prog->globals.client->player_localentnum = cl.playerentity;
 574
 575         // call the prog init
 576         PRVM_ExecuteProgram((func_t) (PRVM_ED_FindFunction(CL_F_INIT) - prog->functions), CL_F_INIT);
 577
 578         PRVM_End;
 579         csqc_loaded = true;
 580
 581         csqc_sv2csqcents = Mem_Alloc(csqc_mempool, MAX_EDICTS*sizeof(unsigned short));
 582         memset(csqc_sv2csqcents, 0, MAX_EDICTS*sizeof(unsigned short));
 583
 584         cl.csqc_vidvars.drawcrosshair = false;
 585         cl.csqc_vidvars.drawenginesbar = false;
 586
 587         // local state
 588         ent = &cl_csqcentities[0];
 589         // entire entity array was cleared, so just fill in a few fields
 590         ent->state_current.active = true;
 591         ent->render.model = cl.worldmodel = cl.model_precache[1];
 592         ent->render.scale = 1; // some of the renderer still relies on scale
 593         ent->render.alpha = 1;
 594         ent->render.flags = RENDER_SHADOW | RENDER_LIGHT;
 595         Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, 0, 0, 0, 0, 0, 0, 1);
 596         Matrix4x4_Invert_Simple(&ent->render.inversematrix, &ent->render.matrix);
 597         CL_BoundingBoxForEntity(&ent->render);
 598 }
 599
 600 void CL_VM_ShutDown (void)
 601 {
 602         Cmd_ClearCsqcFuncs();
 603         Cvar_SetValueQuick(&csqc_progcrc, 0);
 604         if(!csqc_loaded)
 605                 return;
 606         CSQC_BEGIN
 607                 *prog->time = cl.time;
 608                 PRVM_ExecuteProgram((func_t) (PRVM_ED_FindFunction(CL_F_SHUTDOWN) - prog->functions), CL_F_SHUTDOWN);
 609                 PRVM_ResetProg();
 610         CSQC_END
 611         Con_Print("CSQC ^1unloaded\n");
 612         csqc_loaded = false;
 613         Mem_FreePool(&csqc_mempool);
 614 }