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 static char                             *csqc_printtextbuf = NULL;
  47 static unsigned short   *csqc_sv2csqcents;      //[515]: server entities numbers on client side. FIXME : make pointers instead of numbers ?
  48
  49 static mfunction_t      *CSQC_Parse_TempEntity;
  50 static mfunction_t      *CSQC_Parse_StuffCmd;
  51 static mfunction_t      *CSQC_Parse_Print;
  52 static mfunction_t      *CSQC_Parse_CenterPrint;
  53 static mfunction_t      *CSQC_Ent_Update;
  54 static mfunction_t      *CSQC_Ent_Remove;
  55 static mfunction_t      *CSQC_Event;
  56
  57 static int csqc_fieldoff_alpha;
  58 static int csqc_fieldoff_colormod;
  59 static int csqc_fieldoff_effects;
  60 int csqc_fieldoff_scale;
  61 int csqc_fieldoff_renderflags;
  62 int csqc_fieldoff_tag_entity;
  63 int csqc_fieldoff_tag_index;
  64 int csqc_fieldoff_dphitcontentsmask;
  65
  66 qboolean csqc_loaded = false;
  67
  68 vec3_t csqc_origin, csqc_angles;
  69 static double csqc_frametime = 0;
  70 int csqc_buttons;
  71
  72 static mempool_t *csqc_mempool;
  73
  74 static void CL_VM_FindEdictFieldOffsets (void)
  75 {
  76         csqc_fieldoff_alpha                     = PRVM_ED_FindFieldOffset("alpha");
  77         csqc_fieldoff_scale                     = PRVM_ED_FindFieldOffset("scale");
  78         csqc_fieldoff_colormod          = PRVM_ED_FindFieldOffset("colormod");
  79         csqc_fieldoff_renderflags       = PRVM_ED_FindFieldOffset("renderflags");
  80         csqc_fieldoff_effects           = PRVM_ED_FindFieldOffset("effects");
  81         csqc_fieldoff_tag_entity        = PRVM_ED_FindFieldOffset("tag_entity");
  82         csqc_fieldoff_tag_index         = PRVM_ED_FindFieldOffset("tag_index");
  83
  84         CSQC_Parse_TempEntity           = PRVM_ED_FindFunction (CL_F_PARSE_TEMPENTITY);
  85         CSQC_Parse_StuffCmd                     = PRVM_ED_FindFunction (CL_F_PARSE_STUFFCMD);
  86         CSQC_Parse_Print                        = PRVM_ED_FindFunction (CL_F_PARSE_PRINT);
  87         CSQC_Parse_CenterPrint          = PRVM_ED_FindFunction (CL_F_PARSE_CENTERPRINT);
  88         CSQC_Ent_Update                         = PRVM_ED_FindFunction (CL_F_ENT_UPDATE);
  89         CSQC_Ent_Remove                         = PRVM_ED_FindFunction (CL_F_ENT_REMOVE);
  90         CSQC_Event                                      = PRVM_ED_FindFunction (CL_F_EVENT);
  91
  92         if(CSQC_Parse_Print)
  93         {
  94                 csqc_printtextbuf = (char *)Mem_Alloc(csqc_mempool, CSQC_PRINTBUFFERLEN);
  95                 csqc_printtextbuf[0] = 0;
  96         }
  97 }
  98
  99 void CL_VM_Error (const char *format, ...) DP_FUNC_PRINTF(1);
 100 void CL_VM_Error (const char *format, ...)      //[515]: hope it will be never executed =)
 101 {
 102         char errorstring[4096];
 103         va_list argptr;
 104
 105         va_start (argptr, format);
 106         dpvsnprintf (errorstring, sizeof(errorstring), format, argptr);
 107         va_end (argptr);
 108 //      Con_Printf( "CL_VM_Error: %s\n", errorstring );
 109
 110         PRVM_Crash();
 111         csqc_loaded = false;
 112         Mem_FreePool(&csqc_mempool);
 113
 114         Cvar_SetValueQuick(&csqc_progcrc, -1);
 115
 116 //      Host_AbortCurrentFrame();       //[515]: hmmm... if server says it needs csqc then client MUST disconnect
 117         Host_Error(va("CL_VM_Error: %s", errorstring));
 118 }
 119
 120 //[515]: set globals before calling R_UpdateView, WEIRD CRAP
 121 static void CSQC_SetGlobals (void)
 122 {
 123         //extern cvar_t sv_accelerate, sv_friction, sv_gravity, sv_stopspeed, sv_maxspeed;
 124
 125         CSQC_BEGIN
 126                 *prog->time = cl.time;
 127                 prog->globals.client->frametime = cl.time - csqc_frametime;
 128                 csqc_frametime = cl.time;
 129                 prog->globals.client->servercommandframe = cl.servermovesequence;
 130                 prog->globals.client->clientcommandframe = cl.movemessages;
 131                 VectorCopy(cl.viewangles, prog->globals.client->input_angles);
 132                 VectorCopy(cl.viewangles, csqc_angles);
 133                 prog->globals.client->input_buttons = csqc_buttons;
 134                 VectorSet(prog->globals.client->input_movevalues, cl.cmd.forwardmove, cl.cmd.sidemove, cl.cmd.upmove);
 135                 //VectorCopy(cl.movement_origin, csqc_origin);
 136                 Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, csqc_origin);
 137                 VectorCopy(csqc_origin, prog->globals.client->pmove_org);
 138                 prog->globals.client->maxclients = cl.maxclients;
 139                 //VectorCopy(cl.movement_velocity, prog->globals.client->pmove_vel);
 140                 VectorCopy(cl.velocity, prog->globals.client->pmove_vel);
 141         CSQC_END
 142 }
 143
 144 void CSQC_Predraw (prvm_edict_t *ed)
 145 {
 146         int b;
 147         if(!ed->fields.client->predraw)
 148                 return;
 149         b = prog->globals.client->self;
 150         prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 151         PRVM_ExecuteProgram(ed->fields.client->predraw, "CSQC_Predraw: NULL function\n");
 152         prog->globals.client->self = b;
 153 }
 154
 155 void CSQC_Think (prvm_edict_t *ed)
 156 {
 157         int b;
 158         if(ed->fields.client->think)
 159         if(ed->fields.client->nextthink && ed->fields.client->nextthink <= *prog->time)
 160         {
 161                 ed->fields.client->nextthink = 0;
 162                 b = prog->globals.client->self;
 163                 prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 164                 PRVM_ExecuteProgram(ed->fields.client->think, "CSQC_Think: NULL function\n");
 165                 prog->globals.client->self = b;
 166         }
 167 }
 168
 169 extern cvar_t cl_noplayershadow;
 170 qboolean CSQC_AddRenderEdict(prvm_edict_t *ed)
 171 {
 172         int i;
 173         prvm_eval_t *val;
 174         entity_t *e;
 175         matrix4x4_t tagmatrix, matrix2;
 176
 177         e = CL_NewTempEntity();
 178         if (!e)
 179                 return false;
 180
 181         i = (int)ed->fields.client->modelindex;
 182         if(i >= MAX_MODELS || i <= -MAX_MODELS) //[515]: make work as error ?
 183         {
 184                 Con_Print("CSQC_AddRenderEdict: modelindex >= MAX_MODELS\n");
 185                 ed->fields.client->modelindex = i = 0;
 186         }
 187
 188         // model setup and some modelflags
 189         if (i < MAX_MODELS)
 190                 e->render.model = cl.model_precache[e->state_current.modelindex];
 191         else
 192                 e->render.model = cl.csqc_model_precache[65536-e->state_current.modelindex];
 193
 194         if (!e->render.model)
 195                 return false;
 196
 197         e->render.colormap = (int)ed->fields.client->colormap;
 198         e->render.frame = (int)ed->fields.client->frame;
 199         e->render.skinnum = (int)ed->fields.client->skin;
 200         e->render.effects |= e->render.model->flags2 & (EF_FULLBRIGHT | EF_ADDITIVE);
 201
 202         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_alpha)) && val->_float)             e->render.alpha = val->_float;
 203         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_scale)) && val->_float)             e->render.scale = val->_float;
 204         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_colormod)) && VectorLength2(val->vector))   VectorCopy(val->vector, e->render.colormod);
 205         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_effects)) && val->_float)   e->render.effects = (int)val->_float;
 206         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_tag_entity)) && val->edict)
 207         {
 208                 int tagentity;
 209                 int tagindex;
 210                 tagentity = val->edict;
 211                 if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_tag_index)) && val->_float)
 212                         tagindex = (int)val->_float;
 213                 // FIXME: calculate tag matrix
 214                 Matrix4x4_CreateIdentity(&tagmatrix);
 215         }
 216         else
 217                 Matrix4x4_CreateIdentity(&tagmatrix);
 218
 219         if(i & RF_USEAXIS)      //FIXME!!!
 220         {
 221                 vec3_t left;
 222                 VectorNegate(prog->globals.client->v_right, left);
 223                 Matrix4x4_FromVectors(&matrix2, prog->globals.client->v_forward, left, prog->globals.client->v_up, ed->fields.client->origin);
 224         }
 225         else
 226         {
 227                 vec3_t angles;
 228                 VectorCopy(ed->fields.client->angles, angles);
 229                 // if model is alias, reverse pitch direction
 230                 if (e->render.model->type == mod_alias)
 231                         angles[0] = -angles[0];
 232
 233                 // set up the render matrix
 234                 // FIXME: e->render.scale should go away
 235                 Matrix4x4_CreateFromQuakeEntity(&matrix2, ed->fields.client->origin[0], ed->fields.client->origin[1], ed->fields.client->origin[2], angles[0], angles[1], angles[2], e->render.scale);
 236         }
 237
 238         // FIXME: csqc has frame1/frame2/frame1time/frame2time/lerpfrac but this implementation's cl_entvars_t lacks those fields
 239         e->render.frame1 = e->render.frame = ed->fields.client->frame;
 240         e->render.frame1time = e->render.frame2time = 0;
 241         e->render.framelerp = 0;
 242
 243         // concat the matrices to make the entity relative to its tag
 244         Matrix4x4_Concat(&e->render.matrix, &tagmatrix, &matrix2);
 245         // make the other useful stuff
 246         CL_UpdateRenderEntity(&e->render);
 247
 248         i = 0;
 249         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_renderflags)) && val->_float)
 250         {
 251                 i = (int)val->_float;
 252                 if(i & RF_VIEWMODEL)    e->render.flags |= RENDER_VIEWMODEL;
 253                 if(i & RF_EXTERNALMODEL)e->render.flags |= RENDER_EXTERIORMODEL;
 254                 if(i & RF_DEPTHHACK)    e->render.effects |= EF_NODEPTHTEST;
 255                 if(i & RF_ADDITIVE)             e->render.effects |= EF_ADDITIVE;
 256         }
 257
 258         // transparent stuff can't be lit during the opaque stage
 259         if (e->render.effects & (EF_ADDITIVE | EF_NODEPTHTEST) || e->render.alpha < 1)
 260                 e->render.flags |= RENDER_TRANSPARENT;
 261         // double sided rendering mode causes backfaces to be visible
 262         // (mostly useful on transparent stuff)
 263         if (e->render.effects & EF_DOUBLESIDED)
 264                 e->render.flags |= RENDER_NOCULLFACE;
 265         // either fullbright or lit
 266         if (!(e->render.effects & EF_FULLBRIGHT) && !r_fullbright.integer)
 267                 e->render.flags |= RENDER_LIGHT;
 268         // hide player shadow during intermission or nehahra movie
 269         if (!(e->render.effects & EF_NOSHADOW)
 270          && !(e->render.flags & (RENDER_VIEWMODEL | RENDER_TRANSPARENT))
 271          && (!(e->render.flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 272                 e->render.flags |= RENDER_SHADOW;
 273
 274         return true;
 275 }
 276
 277 void CSQC_ClearCSQCEntities (void)
 278 {
 279         memset(cl.csqcentities_active, 0, sizeof(cl.csqcentities_active));
 280         cl.num_csqcentities = 0;
 281 }
 282
 283 void CL_ExpandCSQCEntities (int num);
 284
 285 qboolean CL_VM_InputEvent (qboolean pressed, int key)
 286 {
 287         qboolean r;
 288         if(!csqc_loaded)
 289                 return false;
 290         CSQC_BEGIN
 291                 *prog->time = cl.time;
 292                 PRVM_G_FLOAT(OFS_PARM0) = pressed;
 293                 PRVM_G_FLOAT(OFS_PARM1) = key;
 294                 PRVM_ExecuteProgram (prog->globals.client->CSQC_InputEvent, CL_F_INPUTEVENT);
 295                 r = CSQC_RETURNVAL;
 296         CSQC_END
 297         return r;
 298 }
 299
 300 qboolean CL_VM_UpdateView (void)
 301 {
 302 //      vec3_t oldangles;
 303         if(!csqc_loaded)
 304                 return false;
 305         CSQC_BEGIN
 306                 //VectorCopy(cl.viewangles, oldangles);
 307                 *prog->time = cl.time;
 308                 CSQC_SetGlobals();
 309                 cl.num_csqcentities = 0;
 310                 PRVM_ExecuteProgram (prog->globals.client->CSQC_UpdateView, CL_F_UPDATEVIEW);
 311                 //VectorCopy(oldangles, cl.viewangles);
 312         CSQC_END
 313         csqc_frame = false;
 314         return true;
 315 }
 316
 317 qboolean CL_VM_ConsoleCommand (const char *cmd)
 318 {
 319         qboolean r;
 320         if(!csqc_loaded)
 321                 return false;
 322         CSQC_BEGIN
 323                 *prog->time = cl.time;
 324                 PRVM_G_INT(OFS_PARM0) = PRVM_SetEngineString(cmd);
 325                 PRVM_ExecuteProgram (prog->globals.client->CSQC_ConsoleCommand, CL_F_CONSOLECOMMAND);
 326                 r = CSQC_RETURNVAL;
 327         CSQC_END
 328         return r;
 329 }
 330
 331 qboolean CL_VM_Parse_TempEntity (void)
 332 {
 333         int                     t;
 334         qboolean        r;
 335         if(!csqc_loaded || !CSQC_Parse_TempEntity)
 336                 return false;
 337         t = msg_readcount;
 338         CSQC_BEGIN
 339                 *prog->time = cl.time;
 340                 PRVM_ExecuteProgram ((func_t)(CSQC_Parse_TempEntity - prog->functions), CL_F_PARSE_TEMPENTITY);
 341                 r = CSQC_RETURNVAL;
 342         CSQC_END
 343         if(!r)
 344         {
 345                 msg_readcount = t;
 346                 msg_badread = false;
 347         }
 348         return r;
 349 }
 350
 351 void CL_VM_Parse_StuffCmd (const char *msg)
 352 {
 353         if(msg[0] == 'c')
 354         if(msg[1] == 's')
 355         if(msg[2] == 'q')
 356         if(msg[3] == 'c')
 357         {
 358                 // if this is setting a csqc variable, deprotect csqc_progcrc
 359                 // temporarily so that it can be set by the cvar command,
 360                 // and then reprotect it afterwards
 361                 int flags = csqc_progcrc.flags;
 362                 csqc_progcrc.flags &= ~CVAR_READONLY;
 363                 Cmd_ExecuteString (msg, src_command);
 364                 csqc_progcrc.flags = flags;
 365                 return;
 366         }
 367         if(!csqc_loaded || !CSQC_Parse_StuffCmd)
 368         {
 369                 Cbuf_AddText(msg);
 370                 return;
 371         }
 372         CSQC_BEGIN
 373                 *prog->time = cl.time;
 374                 PRVM_G_INT(OFS_PARM0) = PRVM_SetEngineString(msg);
 375                 PRVM_ExecuteProgram ((func_t)(CSQC_Parse_StuffCmd - prog->functions), CL_F_PARSE_STUFFCMD);
 376         CSQC_END
 377 }
 378
 379 static void CL_VM_Parse_Print (const char *msg)
 380 {
 381         CSQC_BEGIN
 382                 *prog->time = cl.time;
 383                 PRVM_G_INT(OFS_PARM0) = PRVM_SetEngineString(msg);
 384                 PRVM_ExecuteProgram ((func_t)(CSQC_Parse_Print - prog->functions), CL_F_PARSE_PRINT);
 385         CSQC_END
 386 }
 387
 388 void CSQC_AddPrintText (const char *msg)
 389 {
 390         size_t i;
 391         if(!csqc_loaded || !CSQC_Parse_Print)
 392         {
 393                 Con_Print(msg);
 394                 return;
 395         }
 396         // FIXME: is this bugged?
 397         i = strlen(msg)-1;
 398         if(msg[i] != '\n' && msg[i] != '\r')
 399         {
 400                 if(strlen(csqc_printtextbuf)+i >= CSQC_PRINTBUFFERLEN)
 401                 {
 402                         CL_VM_Parse_Print(csqc_printtextbuf);
 403                         csqc_printtextbuf[0] = 0;
 404                 }
 405                 else
 406                         strlcat(csqc_printtextbuf, msg, CSQC_PRINTBUFFERLEN);
 407                 return;
 408         }
 409         strlcat(csqc_printtextbuf, msg, CSQC_PRINTBUFFERLEN);
 410         CL_VM_Parse_Print(csqc_printtextbuf);
 411         csqc_printtextbuf[0] = 0;
 412 }
 413
 414 void CL_VM_Parse_CenterPrint (const char *msg)
 415 {
 416         if(!csqc_loaded || !CSQC_Parse_CenterPrint)
 417         {
 418                 SCR_CenterPrint((char*)msg);
 419                 return;
 420         }
 421         CSQC_BEGIN
 422                 *prog->time = cl.time;
 423                 PRVM_G_INT(OFS_PARM0) = PRVM_SetEngineString(msg);
 424                 PRVM_ExecuteProgram ((func_t)(CSQC_Parse_CenterPrint - prog->functions), CL_F_PARSE_CENTERPRINT);
 425         CSQC_END
 426 }
 427
 428 float CL_VM_Event (float event)         //[515]: needed ? I'd say "YES", but don't know for what :D
 429 {
 430         float r;
 431         if(!csqc_loaded || !CSQC_Event)
 432                 return 0;
 433         CSQC_BEGIN
 434                 *prog->time = cl.time;
 435                 PRVM_G_FLOAT(OFS_PARM0) = event;
 436                 PRVM_ExecuteProgram ((func_t)(CSQC_Event - prog->functions), CL_F_EVENT);
 437                 r = CSQC_RETURNVAL;
 438         CSQC_END
 439         return r;
 440 }
 441
 442 void CSQC_ReadEntities (void)
 443 {
 444         unsigned short entnum, oldself, realentnum;
 445         CSQC_BEGIN
 446                 *prog->time = cl.time;
 447                 oldself = prog->globals.client->self;
 448                 while(1)
 449                 {
 450                         entnum = MSG_ReadShort();
 451                         if(!entnum)
 452                                 return;
 453                         realentnum = entnum & 0x7FFF;
 454                         prog->globals.client->self = csqc_sv2csqcents[realentnum];
 455                         if(entnum & 0x8000)
 456                         {
 457                                 if(prog->globals.client->self)
 458                                 {
 459                                         PRVM_ExecuteProgram((func_t)(CSQC_Ent_Remove - prog->functions), CL_F_ENT_REMOVE);
 460                                         csqc_sv2csqcents[realentnum] = 0;
 461                                 }
 462                                 else
 463                                         Con_Printf("Smth bad happens in csqc...\n");    //[515]: never happens ?
 464                         }
 465                         else
 466                         {
 467                                 if(!prog->globals.client->self)
 468                                 {
 469                                         prvm_edict_t    *ed;
 470                                         ed = PRVM_ED_Alloc();
 471                                         ed->fields.client->entnum = realentnum;
 472                                         prog->globals.client->self = csqc_sv2csqcents[realentnum] = PRVM_EDICT_TO_PROG(ed);
 473                                         PRVM_G_FLOAT(OFS_PARM0) = 1;
 474                                 }
 475                                 else
 476                                         PRVM_G_FLOAT(OFS_PARM0) = 0;
 477                                 PRVM_ExecuteProgram((func_t)(CSQC_Ent_Update - prog->functions), CL_F_ENT_UPDATE);
 478                         }
 479                 }
 480                 prog->globals.client->self = oldself;
 481         CSQC_END
 482 }
 483
 484 void Cmd_ClearCsqcFuncs (void);
 485
 486 void CL_VM_Init (void)
 487 {
 488         unsigned char *csprogsdata;
 489         fs_offset_t csprogsdatasize;
 490         int csprogsdatacrc, requiredcrc;
 491         entity_t *ent;
 492
 493         // reset csqc_progcrc after reading it, so that changing servers doesn't
 494         // expect csqc on the next server
 495         requiredcrc = csqc_progcrc.integer;
 496         Cvar_SetValueQuick(&csqc_progcrc, -1);
 497
 498         csqc_loaded = false;
 499         memset(cl.csqc_model_precache, 0, sizeof(cl.csqc_model_precache));
 500         memset(&cl.csqc_vidvars, true, sizeof(csqc_vidvars_t));
 501
 502         // if the server is not requesting a csprogs, then we're done here
 503         if (requiredcrc < 0)
 504                 return;
 505
 506         // see if the requested csprogs.dat file matches the requested crc
 507         csprogsdatacrc = -1;
 508         csprogsdata = FS_LoadFile(csqc_progname.string, tempmempool, true, &csprogsdatasize);
 509         if (csprogsdata)
 510         {
 511                 csprogsdatacrc = CRC_Block(csprogsdata, csprogsdatasize);
 512                 Mem_Free(csprogsdata);
 513                 if (csprogsdatacrc != requiredcrc)
 514                 {
 515                         if (cls.demoplayback)
 516                         {
 517                                 Con_Printf("^1Warning: Your %s is not the same version as the demo was recorded with (CRC is %i but should be %i)\n", csqc_progname.string, csprogsdatacrc, requiredcrc);
 518                                 return;
 519                         }
 520                         else
 521                         {
 522                                 Con_Printf("^1Your %s is not the same version as the server (CRC is %i but should be %i)\n", csqc_progname.string, csprogsdatacrc, requiredcrc);
 523                                 CL_Disconnect();
 524                                 return;
 525                         }
 526                 }
 527         }
 528         else
 529         {
 530                 if (requiredcrc >= 0)
 531                 {
 532                         if (cls.demoplayback)
 533                                 Con_Printf("CL_VM_Init: demo requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 534                         else
 535                                 Con_Printf("CL_VM_Init: server requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 536                         CL_Disconnect();
 537                 }
 538                 return;
 539         }
 540
 541         PRVM_Begin;
 542         PRVM_InitProg(PRVM_CLIENTPROG);
 543
 544         csqc_mempool = Mem_AllocPool("CSQC", 0, NULL);
 545
 546         // allocate the mempools
 547         prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
 548         prog->headercrc = CL_PROGHEADER_CRC;
 549         prog->edictprivate_size = 0; // no private struct used
 550         prog->name = CL_NAME;
 551         prog->num_edicts = 1;
 552         prog->limit_edicts = CL_MAX_EDICTS;
 553         prog->extensionstring = vm_cl_extensions;
 554         prog->builtins = vm_cl_builtins;
 555         prog->numbuiltins = vm_cl_numbuiltins;
 556         prog->init_cmd = VM_CL_Cmd_Init;
 557         prog->reset_cmd = VM_CL_Cmd_Reset;
 558         prog->error_cmd = CL_VM_Error;
 559
 560         PRVM_LoadProgs(csqc_progname.string, cl_numrequiredfunc, cl_required_func, 0, NULL);
 561
 562         if(prog->loaded)
 563                 Con_Printf("CSQC ^5loaded (crc=%i)\n", csprogsdatacrc);
 564         else
 565         {
 566                 CL_VM_Error("CSQC ^2failed to load\n");
 567                 if(!sv.active)
 568                         CL_Disconnect();
 569                 return;
 570         }
 571
 572         //[515]: optional fields & funcs
 573         CL_VM_FindEdictFieldOffsets();
 574
 575         // set time
 576         *prog->time = cl.time;
 577         csqc_frametime = 0;
 578
 579         prog->globals.client->mapname = PRVM_SetEngineString(cl.worldmodel->name);
 580         prog->globals.client->player_localentnum = cl.playerentity;
 581
 582         // call the prog init
 583         PRVM_ExecuteProgram((func_t) (PRVM_ED_FindFunction(CL_F_INIT) - prog->functions), CL_F_INIT);
 584
 585         PRVM_End;
 586         csqc_loaded = true;
 587
 588         csqc_sv2csqcents = (unsigned short *)Mem_Alloc(csqc_mempool, MAX_EDICTS*sizeof(unsigned short));
 589         memset(csqc_sv2csqcents, 0, MAX_EDICTS*sizeof(unsigned short));
 590
 591         cl.csqc_vidvars.drawcrosshair = false;
 592         cl.csqc_vidvars.drawenginesbar = false;
 593
 594         // local state
 595         ent = &cl.csqcentities[0];
 596         // entire entity array was cleared, so just fill in a few fields
 597         ent->state_current.active = true;
 598         ent->render.model = cl.worldmodel = cl.model_precache[1];
 599         ent->render.alpha = 1;
 600         ent->render.flags = RENDER_SHADOW | RENDER_LIGHT;
 601         Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, 0, 0, 0, 0, 0, 0, 1);
 602         CL_UpdateRenderEntity(&ent->render);
 603 }
 604
 605 void CL_VM_ShutDown (void)
 606 {
 607         Cmd_ClearCsqcFuncs();
 608         Cvar_SetValueQuick(&csqc_progcrc, -1);
 609         if(!csqc_loaded)
 610                 return;
 611         CSQC_BEGIN
 612                 *prog->time = cl.time;
 613                 PRVM_ExecuteProgram((func_t) (PRVM_ED_FindFunction(CL_F_SHUTDOWN) - prog->functions), CL_F_SHUTDOWN);
 614                 PRVM_ResetProg();
 615         CSQC_END
 616         Con_Print("CSQC ^1unloaded\n");
 617         csqc_loaded = false;
 618         Mem_FreePool(&csqc_mempool);
 619 }