csprogs.c

   1 #include "quakedef.h"
   2 #include "progsvm.h"
   3 #include "clprogdefs.h"
   4 #include "csprogs.h"
   5 #include "cl_collision.h"
   6
   7 //============================================================================
   8 // Client prog handling
   9 //[515]: omg !!! optimize it ! a lot of hacks here and there also :P
  10
  11 #define CSQC_RETURNVAL  prog->globals.generic[OFS_RETURN]
  12 #define CSQC_BEGIN              csqc_tmpprog=prog;prog=0;PRVM_SetProg(PRVM_CLIENTPROG);
  13 #define CSQC_END                prog=csqc_tmpprog;
  14 static prvm_prog_t *csqc_tmpprog;
  15
  16 //[515]: these are required funcs
  17 static char *cl_required_func[] =
  18 {
  19         "CSQC_Init",
  20         "CSQC_InputEvent",
  21         "CSQC_UpdateView",
  22         "CSQC_ConsoleCommand",
  23         "CSQC_Shutdown"
  24 };
  25
  26 static int cl_numrequiredfunc = sizeof(cl_required_func) / sizeof(char*);
  27
  28 static char                             *csqc_printtextbuf = NULL;
  29 static unsigned short   *csqc_sv2csqcents;      //[515]: server entities numbers on client side. FIXME : make pointers instead of numbers ?
  30
  31 qboolean csqc_loaded = false;
  32
  33 vec3_t csqc_origin, csqc_angles;
  34 static double csqc_frametime = 0;
  35
  36 static mempool_t *csqc_mempool;
  37
  38 void CL_VM_Error (const char *format, ...) DP_FUNC_PRINTF(1);
  39 void CL_VM_Error (const char *format, ...)      //[515]: hope it will be never executed =)
  40 {
  41         char errorstring[4096];
  42         va_list argptr;
  43
  44         va_start (argptr, format);
  45         dpvsnprintf (errorstring, sizeof(errorstring), format, argptr);
  46         va_end (argptr);
  47 //      Con_Printf( "CL_VM_Error: %s\n", errorstring );
  48
  49         PRVM_Crash();
  50         csqc_loaded = false;
  51         Mem_FreePool(&csqc_mempool);
  52
  53         Cvar_SetValueQuick(&csqc_progcrc, -1);
  54         Cvar_SetValueQuick(&csqc_progsize, -1);
  55
  56 //      Host_AbortCurrentFrame();       //[515]: hmmm... if server says it needs csqc then client MUST disconnect
  57         Host_Error(va("CL_VM_Error: %s", errorstring));
  58 }
  59
  60 //[515]: set globals before calling R_UpdateView, WEIRD CRAP
  61 static void CSQC_SetGlobals (void)
  62 {
  63         //extern cvar_t sv_accelerate, sv_friction, sv_gravity, sv_stopspeed, sv_maxspeed;
  64
  65         CSQC_BEGIN
  66                 prog->globals.client->time = cl.time;
  67                 prog->globals.client->frametime = cl.time - csqc_frametime;
  68                 csqc_frametime = cl.time;
  69                 prog->globals.client->servercommandframe = cls.servermovesequence;
  70                 prog->globals.client->clientcommandframe = cls.movesequence;
  71                 VectorCopy(cl.viewangles, prog->globals.client->input_angles);
  72                 VectorCopy(cl.viewangles, csqc_angles);
  73                 prog->globals.client->input_buttons = cl.cmd.buttons;
  74                 VectorSet(prog->globals.client->input_movevalues, cl.cmd.forwardmove, cl.cmd.sidemove, cl.cmd.upmove);
  75                 //VectorCopy(cl.movement_origin, csqc_origin);
  76                 Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, csqc_origin);
  77                 VectorCopy(csqc_origin, prog->globals.client->pmove_org);
  78                 prog->globals.client->maxclients = cl.maxclients;
  79                 //VectorCopy(cl.movement_velocity, prog->globals.client->pmove_vel);
  80                 VectorCopy(cl.velocity, prog->globals.client->pmove_vel);
  81         CSQC_END
  82 }
  83
  84 void CSQC_Predraw (prvm_edict_t *ed)
  85 {
  86         int b;
  87         if(!ed->fields.client->predraw)
  88                 return;
  89         b = prog->globals.client->self;
  90         prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
  91         PRVM_ExecuteProgram(ed->fields.client->predraw, "CSQC_Predraw: NULL function\n");
  92         prog->globals.client->self = b;
  93 }
  94
  95 void CSQC_Think (prvm_edict_t *ed)
  96 {
  97         int b;
  98         if(ed->fields.client->think)
  99         if(ed->fields.client->nextthink && ed->fields.client->nextthink <= prog->globals.client->time)
 100         {
 101                 ed->fields.client->nextthink = 0;
 102                 b = prog->globals.client->self;
 103                 prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 104                 PRVM_ExecuteProgram(ed->fields.client->think, "CSQC_Think: NULL function\n");
 105                 prog->globals.client->self = b;
 106         }
 107 }
 108
 109 extern cvar_t cl_noplayershadow;
 110 qboolean CSQC_AddRenderEdict(prvm_edict_t *ed)
 111 {
 112         int i, renderflags;
 113         float scale;
 114         prvm_eval_t *val;
 115         entity_t *e;
 116         model_t *model;
 117         matrix4x4_t tagmatrix, matrix2;
 118
 119         model = CL_GetModelFromEdict(ed);
 120         if (!model)
 121                 return false;
 122
 123         e = CL_NewTempEntity();
 124         if (!e)
 125                 return false;
 126
 127         e->render.model = model;
 128         e->render.colormap = (int)ed->fields.client->colormap;
 129         e->render.frame = (int)ed->fields.client->frame;
 130         e->render.skinnum = (int)ed->fields.client->skin;
 131         e->render.effects |= e->render.model->flags2 & (EF_FULLBRIGHT | EF_ADDITIVE);
 132         scale = 1;
 133         renderflags = 0;
 134         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.renderflags)) && val->_float)     renderflags = (int)val->_float;
 135         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.alpha)) && val->_float)           e->render.alpha = val->_float;
 136         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.scale)) && val->_float)           e->render.scale = scale = val->_float;
 137         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.colormod)) && VectorLength2(val->vector)) VectorCopy(val->vector, e->render.colormod);
 138         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.effects)) && val->_float) e->render.effects = (int)val->_float;
 139         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_entity)) && val->edict)
 140         {
 141                 int tagentity;
 142                 int tagindex = 0;
 143                 tagentity = val->edict;
 144                 if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_index)) && val->_float)
 145                         tagindex = (int)val->_float;
 146                 // FIXME: calculate tag matrix
 147                 Matrix4x4_CreateIdentity(&tagmatrix);
 148         }
 149         else
 150                 Matrix4x4_CreateIdentity(&tagmatrix);
 151
 152         if (renderflags & RF_USEAXIS)
 153         {
 154                 vec3_t left;
 155                 VectorNegate(prog->globals.client->v_right, left);
 156                 Matrix4x4_FromVectors(&matrix2, prog->globals.client->v_forward, left, prog->globals.client->v_up, ed->fields.client->origin);
 157                 Matrix4x4_Scale(&matrix2, scale, 1);
 158         }
 159         else
 160         {
 161                 vec3_t angles;
 162                 VectorCopy(ed->fields.client->angles, angles);
 163                 // if model is alias, reverse pitch direction
 164                 if (e->render.model->type == mod_alias)
 165                         angles[0] = -angles[0];
 166
 167                 // set up the render matrix
 168                 Matrix4x4_CreateFromQuakeEntity(&matrix2, ed->fields.client->origin[0], ed->fields.client->origin[1], ed->fields.client->origin[2], angles[0], angles[1], angles[2], scale);
 169         }
 170
 171         // FIXME: csqc has frame1/frame2/frame1time/frame2time/lerpfrac but this implementation's cl_entvars_t lacks those fields
 172         e->render.frame1 = e->render.frame = ed->fields.client->frame;
 173         e->render.frame1time = e->render.frame2time = 0;
 174         e->render.framelerp = 0;
 175
 176         // concat the matrices to make the entity relative to its tag
 177         Matrix4x4_Concat(&e->render.matrix, &tagmatrix, &matrix2);
 178         // make the other useful stuff
 179         CL_UpdateRenderEntity(&e->render);
 180
 181         i = 0;
 182         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.renderflags)) && val->_float)
 183         {
 184                 i = (int)val->_float;
 185                 if(i & RF_VIEWMODEL)    e->render.flags |= RENDER_VIEWMODEL;
 186                 if(i & RF_EXTERNALMODEL)e->render.flags |= RENDER_EXTERIORMODEL;
 187                 if(i & RF_DEPTHHACK)    e->render.effects |= EF_NODEPTHTEST;
 188                 if(i & RF_ADDITIVE)             e->render.effects |= EF_ADDITIVE;
 189         }
 190
 191         // transparent stuff can't be lit during the opaque stage
 192         if (e->render.effects & (EF_ADDITIVE | EF_NODEPTHTEST) || e->render.alpha < 1)
 193                 e->render.flags |= RENDER_TRANSPARENT;
 194         // double sided rendering mode causes backfaces to be visible
 195         // (mostly useful on transparent stuff)
 196         if (e->render.effects & EF_DOUBLESIDED)
 197                 e->render.flags |= RENDER_NOCULLFACE;
 198         // either fullbright or lit
 199         if (!(e->render.effects & EF_FULLBRIGHT) && !r_fullbright.integer)
 200                 e->render.flags |= RENDER_LIGHT;
 201         // hide player shadow during intermission or nehahra movie
 202         if (!(e->render.effects & EF_NOSHADOW)
 203          && !(e->render.flags & (RENDER_VIEWMODEL | RENDER_TRANSPARENT))
 204          && (!(e->render.flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 205                 e->render.flags |= RENDER_SHADOW;
 206
 207         return true;
 208 }
 209
 210 qboolean CL_VM_InputEvent (qboolean pressed, int key)
 211 {
 212         qboolean r;
 213         if(!csqc_loaded)
 214                 return false;
 215         CSQC_BEGIN
 216                 prog->globals.client->time = cl.time;
 217                 PRVM_G_FLOAT(OFS_PARM0) = pressed;
 218                 PRVM_G_FLOAT(OFS_PARM1) = key;
 219                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_InputEvent, "QC function CSQC_InputEvent is missing");
 220                 r = CSQC_RETURNVAL;
 221         CSQC_END
 222         return r;
 223 }
 224
 225 qboolean CL_VM_UpdateView (void)
 226 {
 227 //      vec3_t oldangles;
 228         if(!csqc_loaded)
 229                 return false;
 230         CSQC_BEGIN
 231                 //VectorCopy(cl.viewangles, oldangles);
 232                 prog->globals.client->time = cl.time;
 233                 CSQC_SetGlobals();
 234                 // clear renderable entity and light lists to prevent crashes if the
 235                 // CSQC_UpdateView function does not call R_ClearScene as it should
 236                 r_refdef.numentities = 0;
 237                 r_refdef.numlights = 0;
 238                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_UpdateView, "QC function CSQC_UpdateView is missing");
 239                 //VectorCopy(oldangles, cl.viewangles);
 240         CSQC_END
 241         return true;
 242 }
 243
 244 extern sizebuf_t vm_tempstringsbuf;
 245 qboolean CL_VM_ConsoleCommand (const char *cmd)
 246 {
 247         int restorevm_tempstringsbuf_cursize;
 248         qboolean r;
 249         if(!csqc_loaded)
 250                 return false;
 251         CSQC_BEGIN
 252                 prog->globals.client->time = cl.time;
 253                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 254                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(cmd);
 255                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_ConsoleCommand, "QC function CSQC_ConsoleCommand is missing");
 256                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 257                 r = CSQC_RETURNVAL;
 258         CSQC_END
 259         return r;
 260 }
 261
 262 qboolean CL_VM_Parse_TempEntity (void)
 263 {
 264         int                     t;
 265         qboolean        r = false;
 266         if(!csqc_loaded)
 267                 return false;
 268         CSQC_BEGIN
 269         if(prog->funcoffsets.CSQC_Parse_TempEntity)
 270         {
 271                 t = msg_readcount;
 272                 prog->globals.client->time = cl.time;
 273                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_TempEntity, "QC function CSQC_Parse_TempEntity is missing");
 274                 r = CSQC_RETURNVAL;
 275                 if(!r)
 276                 {
 277                         msg_readcount = t;
 278                         msg_badread = false;
 279                 }
 280         }
 281         CSQC_END
 282         return r;
 283 }
 284
 285 void CL_VM_Parse_StuffCmd (const char *msg)
 286 {
 287         int restorevm_tempstringsbuf_cursize;
 288         if(msg[0] == 'c')
 289         if(msg[1] == 's')
 290         if(msg[2] == 'q')
 291         if(msg[3] == 'c')
 292         {
 293                 // if this is setting a csqc variable, deprotect csqc_progcrc
 294                 // temporarily so that it can be set by the cvar command,
 295                 // and then reprotect it afterwards
 296                 int crcflags = csqc_progcrc.flags;
 297                 int sizeflags = csqc_progcrc.flags;
 298                 csqc_progcrc.flags &= ~CVAR_READONLY;
 299                 csqc_progsize.flags &= ~CVAR_READONLY;
 300                 Cmd_ExecuteString (msg, src_command);
 301                 csqc_progcrc.flags = crcflags;
 302                 csqc_progsize.flags = sizeflags;
 303                 return;
 304         }
 305         if(!csqc_loaded)
 306         {
 307                 Cbuf_AddText(msg);
 308                 return;
 309         }
 310         CSQC_BEGIN
 311         if(prog->funcoffsets.CSQC_Parse_StuffCmd)
 312         {
 313                 prog->globals.client->time = cl.time;
 314                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 315                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 316                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_StuffCmd, "QC function CSQC_Parse_StuffCmd is missing");
 317                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 318         }
 319         else
 320                 Cbuf_AddText(msg);
 321         CSQC_END
 322 }
 323
 324 static void CL_VM_Parse_Print (const char *msg)
 325 {
 326         int restorevm_tempstringsbuf_cursize;
 327         prog->globals.client->time = cl.time;
 328         restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 329         PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 330         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_Print, "QC function CSQC_Parse_Print is missing");
 331         vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 332 }
 333
 334 void CSQC_AddPrintText (const char *msg)
 335 {
 336         size_t i;
 337         if(!csqc_loaded)
 338         {
 339                 Con_Print(msg);
 340                 return;
 341         }
 342         CSQC_BEGIN
 343         if(prog->funcoffsets.CSQC_Parse_Print)
 344         {
 345                 // FIXME: is this bugged?
 346                 i = strlen(msg)-1;
 347                 if(msg[i] != '\n' && msg[i] != '\r')
 348                 {
 349                         if(strlen(csqc_printtextbuf)+i >= MAX_INPUTLINE)
 350                         {
 351                                 CL_VM_Parse_Print(csqc_printtextbuf);
 352                                 csqc_printtextbuf[0] = 0;
 353                         }
 354                         else
 355                                 strlcat(csqc_printtextbuf, msg, MAX_INPUTLINE);
 356                         return;
 357                 }
 358                 strlcat(csqc_printtextbuf, msg, MAX_INPUTLINE);
 359                 CL_VM_Parse_Print(csqc_printtextbuf);
 360                 csqc_printtextbuf[0] = 0;
 361         }
 362         else
 363                 Con_Print(msg);
 364         CSQC_END
 365 }
 366
 367 void CL_VM_Parse_CenterPrint (const char *msg)
 368 {
 369         int restorevm_tempstringsbuf_cursize;
 370         if(!csqc_loaded)
 371         {
 372                 SCR_CenterPrint((char*)msg);
 373                 return;
 374         }
 375         CSQC_BEGIN
 376         if(prog->funcoffsets.CSQC_Parse_CenterPrint)
 377         {
 378                 prog->globals.client->time = cl.time;
 379                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 380                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 381                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_CenterPrint, "QC function CSQC_Parse_CenterPrint is missing");
 382                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 383         }
 384         else
 385                 SCR_CenterPrint((char*)msg);
 386         CSQC_END
 387 }
 388
 389 float CL_VM_Event (float event)         //[515]: needed ? I'd say "YES", but don't know for what :D
 390 {
 391         float r = 0;
 392         if(!csqc_loaded)
 393                 return 0;
 394         CSQC_BEGIN
 395         if(prog->funcoffsets.CSQC_Event)
 396         {
 397                 prog->globals.client->time = cl.time;
 398                 PRVM_G_FLOAT(OFS_PARM0) = event;
 399                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event, "QC function CSQC_Event is missing");
 400                 r = CSQC_RETURNVAL;
 401         }
 402         CSQC_END
 403         return r;
 404 }
 405
 406 void CSQC_ReadEntities (void)
 407 {
 408         unsigned short entnum, oldself, realentnum;
 409         CSQC_BEGIN
 410                 prog->globals.client->time = cl.time;
 411                 oldself = prog->globals.client->self;
 412                 while(1)
 413                 {
 414                         entnum = MSG_ReadShort();
 415                         if(!entnum)
 416                                 return;
 417                         realentnum = entnum & 0x7FFF;
 418                         prog->globals.client->self = csqc_sv2csqcents[realentnum];
 419                         if(entnum & 0x8000)
 420                         {
 421                                 if(prog->globals.client->self)
 422                                 {
 423                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Remove, "QC function CSQC_Ent_Remove is missing");
 424                                         csqc_sv2csqcents[realentnum] = 0;
 425                                 }
 426                                 else
 427                                         Con_Printf("Smth bad happens in csqc...\n");    //[515]: never happens ?
 428                         }
 429                         else
 430                         {
 431                                 if(!prog->globals.client->self)
 432                                 {
 433                                         prvm_edict_t    *ed;
 434                                         ed = PRVM_ED_Alloc();
 435                                         ed->fields.client->entnum = realentnum;
 436                                         prog->globals.client->self = csqc_sv2csqcents[realentnum] = PRVM_EDICT_TO_PROG(ed);
 437                                         PRVM_G_FLOAT(OFS_PARM0) = 1;
 438                                 }
 439                                 else
 440                                         PRVM_G_FLOAT(OFS_PARM0) = 0;
 441                                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 442                         }
 443                 }
 444                 prog->globals.client->self = oldself;
 445         CSQC_END
 446 }
 447
 448 void CL_VM_CB_BeginIncreaseEdicts(void)
 449 {
 450         int i;
 451         prvm_edict_t *ent;
 452
 453         // links don't survive the transition, so unlink everything
 454         for (i = 0, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
 455         {
 456                 if (!ent->priv.server->free)
 457                         World_UnlinkEdict(prog->edicts + i);
 458                 memset(&ent->priv.server->areagrid, 0, sizeof(ent->priv.server->areagrid));
 459         }
 460         World_Clear(&cl.world);
 461 }
 462
 463 void CL_VM_CB_EndIncreaseEdicts(void)
 464 {
 465         int i;
 466         prvm_edict_t *ent;
 467
 468         // link every entity except world
 469         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
 470                 if (!ent->priv.server->free)
 471                         CL_LinkEdict(ent);
 472 }
 473
 474 void CL_VM_CB_InitEdict(prvm_edict_t *e)
 475 {
 476         e->priv.server->move = false; // don't move on first frame
 477 }
 478
 479 void CL_VM_CB_FreeEdict(prvm_edict_t *ed)
 480 {
 481         World_UnlinkEdict(ed);
 482         memset(ed->fields.client, 0, sizeof(*ed->fields.client));
 483 }
 484
 485 void CL_VM_CB_CountEdicts(void)
 486 {
 487         int             i;
 488         prvm_edict_t    *ent;
 489         int             active = 0, models = 0, solid = 0;
 490
 491         for (i=0 ; i<prog->num_edicts ; i++)
 492         {
 493                 ent = PRVM_EDICT_NUM(i);
 494                 if (ent->priv.server->free)
 495                         continue;
 496                 active++;
 497                 if (ent->fields.client->solid)
 498                         solid++;
 499                 if (ent->fields.client->model)
 500                         models++;
 501         }
 502
 503         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
 504         Con_Printf("active    :%3i\n", active);
 505         Con_Printf("view      :%3i\n", models);
 506         Con_Printf("touch     :%3i\n", solid);
 507 }
 508
 509 qboolean CL_VM_CB_LoadEdict(prvm_edict_t *ent)
 510 {
 511         return true;
 512 }
 513
 514 void Cmd_ClearCsqcFuncs (void);
 515
 516 void CL_VM_Init (void)
 517 {
 518         unsigned char *csprogsdata;
 519         fs_offset_t csprogsdatasize;
 520         int csprogsdatacrc, requiredcrc;
 521         int requiredsize;
 522
 523         // reset csqc_progcrc after reading it, so that changing servers doesn't
 524         // expect csqc on the next server
 525         requiredcrc = csqc_progcrc.integer;
 526         requiredsize = csqc_progsize.integer;
 527         Cvar_SetValueQuick(&csqc_progcrc, -1);
 528         Cvar_SetValueQuick(&csqc_progsize, -1);
 529
 530         csqc_loaded = false;
 531         memset(cl.csqc_model_precache, 0, sizeof(cl.csqc_model_precache));
 532         memset(&cl.csqc_vidvars, true, sizeof(csqc_vidvars_t));
 533
 534         // if the server is not requesting a csprogs, then we're done here
 535         if (requiredcrc < 0)
 536                 return;
 537
 538         // see if the requested csprogs.dat file matches the requested crc
 539         csprogsdatacrc = -1;
 540         csprogsdata = FS_LoadFile(va("dlcache/%s.%i.%i", csqc_progname.string, requiredsize, requiredcrc), tempmempool, true, &csprogsdatasize);
 541         if (!csprogsdata)
 542                 csprogsdata = FS_LoadFile(csqc_progname.string, tempmempool, true, &csprogsdatasize);
 543         if (csprogsdata)
 544         {
 545                 csprogsdatacrc = CRC_Block(csprogsdata, csprogsdatasize);
 546                 Mem_Free(csprogsdata);
 547                 if (csprogsdatacrc != requiredcrc || csprogsdatasize != requiredsize)
 548                 {
 549                         if (cls.demoplayback)
 550                         {
 551                                 Con_Printf("^1Warning: Your %s is not the same version as the demo was recorded with (CRC/size are %i/%i but should be %i/%i)\n", csqc_progname.string, csprogsdatacrc, (int)csprogsdatasize, requiredcrc, requiredsize);
 552                                 return;
 553                         }
 554                         else
 555                         {
 556                                 Con_Printf("^1Your %s is not the same version as the server (CRC is %i/%i but should be %i/%i)\n", csqc_progname.string, csprogsdatacrc, (int)csprogsdatasize, requiredcrc, requiredsize);
 557                                 CL_Disconnect();
 558                                 return;
 559                         }
 560                 }
 561         }
 562         else
 563         {
 564                 if (requiredcrc >= 0)
 565                 {
 566                         if (cls.demoplayback)
 567                                 Con_Printf("CL_VM_Init: demo requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 568                         else
 569                                 Con_Printf("CL_VM_Init: server requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 570                         CL_Disconnect();
 571                 }
 572                 return;
 573         }
 574
 575         PRVM_Begin;
 576         PRVM_InitProg(PRVM_CLIENTPROG);
 577
 578         csqc_mempool = Mem_AllocPool("CSQC", 0, NULL);
 579
 580         // allocate the mempools
 581         prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
 582         prog->headercrc = CL_PROGHEADER_CRC;
 583         prog->edictprivate_size = 0; // no private struct used
 584         prog->name = CL_NAME;
 585         prog->num_edicts = 1;
 586         prog->max_edicts = 512;
 587         prog->limit_edicts = CL_MAX_EDICTS;
 588         prog->reserved_edicts = 0;
 589         prog->edictprivate_size = sizeof(edict_engineprivate_t);
 590         prog->extensionstring = vm_sv_extensions;
 591         prog->builtins = vm_cl_builtins;
 592         prog->numbuiltins = vm_cl_numbuiltins;
 593         prog->begin_increase_edicts = CL_VM_CB_BeginIncreaseEdicts;
 594         prog->end_increase_edicts = CL_VM_CB_EndIncreaseEdicts;
 595         prog->init_edict = CL_VM_CB_InitEdict;
 596         prog->free_edict = CL_VM_CB_FreeEdict;
 597         prog->count_edicts = CL_VM_CB_CountEdicts;
 598         prog->load_edict = CL_VM_CB_LoadEdict;
 599         prog->init_cmd = VM_CL_Cmd_Init;
 600         prog->reset_cmd = VM_CL_Cmd_Reset;
 601         prog->error_cmd = CL_VM_Error;
 602
 603         PRVM_LoadProgs(csqc_progname.string, cl_numrequiredfunc, cl_required_func, 0, NULL, 0, NULL);
 604
 605         if (!prog->loaded)
 606         {
 607                 CL_VM_Error("CSQC ^2failed to load\n");
 608                 if(!sv.active)
 609                         CL_Disconnect();
 610                 return;
 611         }
 612
 613         Con_Printf("CSQC ^5loaded (crc=%i, size=%i)\n", csprogsdatacrc, (int)csprogsdatasize);
 614
 615         // check if OP_STATE animation is possible in this dat file
 616         if (prog->fieldoffsets.nextthink >= 0 && prog->fieldoffsets.frame >= 0 && prog->fieldoffsets.think >= 0 && prog->globaloffsets.self >= 0)
 617                 prog->flag |= PRVM_OP_STATE;
 618
 619         //[515]: optional fields & funcs
 620         if(prog->funcoffsets.CSQC_Parse_Print)
 621         {
 622                 csqc_printtextbuf = (char *)Mem_Alloc(csqc_mempool, MAX_INPUTLINE);
 623                 csqc_printtextbuf[0] = 0;
 624         }
 625
 626         if (cl.worldmodel)
 627         {
 628                 VectorCopy(cl.worldmodel->normalmins, cl.world.areagrid_mins);
 629                 VectorCopy(cl.worldmodel->normalmaxs, cl.world.areagrid_maxs);
 630         }
 631         else
 632         {
 633                 VectorSet(cl.world.areagrid_mins, -4096, -4096, -4096);
 634                 VectorSet(cl.world.areagrid_maxs, 4096, 4096, 4096);
 635         }
 636         World_Clear(&cl.world);
 637
 638         // set time
 639         prog->globals.client->time = cl.time;
 640         csqc_frametime = 0;
 641
 642         prog->globals.client->mapname = PRVM_SetEngineString(cl.worldmodel->name);
 643         prog->globals.client->player_localentnum = cl.playerentity;
 644
 645         // call the prog init
 646         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Init, "QC function CSQC_Init is missing");
 647
 648         PRVM_End;
 649         csqc_loaded = true;
 650
 651         csqc_sv2csqcents = (unsigned short *)Mem_Alloc(csqc_mempool, MAX_EDICTS*sizeof(unsigned short));
 652         memset(csqc_sv2csqcents, 0, MAX_EDICTS*sizeof(unsigned short));
 653
 654         cl.csqc_vidvars.drawcrosshair = false;
 655         cl.csqc_vidvars.drawenginesbar = false;
 656 }
 657
 658 void CL_VM_ShutDown (void)
 659 {
 660         Cmd_ClearCsqcFuncs();
 661         Cvar_SetValueQuick(&csqc_progcrc, -1);
 662         Cvar_SetValueQuick(&csqc_progsize, -1);
 663         if(!csqc_loaded)
 664                 return;
 665         CSQC_BEGIN
 666                 prog->globals.client->time = cl.time;
 667                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Shutdown, "QC function CSQC_Shutdown is missing");
 668                 PRVM_ResetProg();
 669         CSQC_END
 670         Con_Print("CSQC ^1unloaded\n");
 671         csqc_loaded = false;
 672         Mem_FreePool(&csqc_mempool);
 673 }