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 already 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         Cvar_SetValueQuick(&csqc_progsize, -1);
 116
 117 //      Host_AbortCurrentFrame();       //[515]: hmmm... if server says it needs csqc then client MUST disconnect
 118         Host_Error(va("CL_VM_Error: %s", errorstring));
 119 }
 120
 121 model_t *CSQC_GetModelByIndex(int modelindex)
 122 {
 123         if(!modelindex)
 124                 return NULL;
 125         if (modelindex < 0)
 126         {
 127                 modelindex = -(modelindex+1);
 128                 if (modelindex < MAX_MODELS)
 129                         return cl.csqc_model_precache[modelindex];
 130         }
 131         else
 132         {
 133                 if(modelindex < MAX_MODELS)
 134                         return cl.model_precache[modelindex];
 135         }
 136         return NULL;
 137 }
 138
 139 model_t *CSQC_GetModelFromEntity(prvm_edict_t *ed)
 140 {
 141         if (!ed || ed->priv.server->free)
 142                 return NULL;
 143         return CSQC_GetModelByIndex((int)ed->fields.client->modelindex);
 144 }
 145
 146 //[515]: set globals before calling R_UpdateView, WEIRD CRAP
 147 static void CSQC_SetGlobals (void)
 148 {
 149         //extern cvar_t sv_accelerate, sv_friction, sv_gravity, sv_stopspeed, sv_maxspeed;
 150
 151         CSQC_BEGIN
 152                 *prog->time = cl.time;
 153                 prog->globals.client->frametime = cl.time - csqc_frametime;
 154                 csqc_frametime = cl.time;
 155                 prog->globals.client->servercommandframe = cl.servermovesequence;
 156                 prog->globals.client->clientcommandframe = cl.movemessages;
 157                 VectorCopy(cl.viewangles, prog->globals.client->input_angles);
 158                 VectorCopy(cl.viewangles, csqc_angles);
 159                 prog->globals.client->input_buttons = csqc_buttons;
 160                 VectorSet(prog->globals.client->input_movevalues, cl.cmd.forwardmove, cl.cmd.sidemove, cl.cmd.upmove);
 161                 //VectorCopy(cl.movement_origin, csqc_origin);
 162                 Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, csqc_origin);
 163                 VectorCopy(csqc_origin, prog->globals.client->pmove_org);
 164                 prog->globals.client->maxclients = cl.maxclients;
 165                 //VectorCopy(cl.movement_velocity, prog->globals.client->pmove_vel);
 166                 VectorCopy(cl.velocity, prog->globals.client->pmove_vel);
 167         CSQC_END
 168 }
 169
 170 void CSQC_Predraw (prvm_edict_t *ed)
 171 {
 172         int b;
 173         if(!ed->fields.client->predraw)
 174                 return;
 175         b = prog->globals.client->self;
 176         prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 177         PRVM_ExecuteProgram(ed->fields.client->predraw, "CSQC_Predraw: NULL function\n");
 178         prog->globals.client->self = b;
 179 }
 180
 181 void CSQC_Think (prvm_edict_t *ed)
 182 {
 183         int b;
 184         if(ed->fields.client->think)
 185         if(ed->fields.client->nextthink && ed->fields.client->nextthink <= *prog->time)
 186         {
 187                 ed->fields.client->nextthink = 0;
 188                 b = prog->globals.client->self;
 189                 prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 190                 PRVM_ExecuteProgram(ed->fields.client->think, "CSQC_Think: NULL function\n");
 191                 prog->globals.client->self = b;
 192         }
 193 }
 194
 195 extern cvar_t cl_noplayershadow;
 196 qboolean CSQC_AddRenderEdict(prvm_edict_t *ed)
 197 {
 198         int i, renderflags;
 199         float scale;
 200         prvm_eval_t *val;
 201         entity_t *e;
 202         model_t *model;
 203         matrix4x4_t tagmatrix, matrix2;
 204
 205         model = CSQC_GetModelFromEntity(ed);
 206         if (!model)
 207                 return false;
 208
 209         e = CL_NewTempEntity();
 210         if (!e)
 211                 return false;
 212
 213         e->render.model = model;
 214         e->render.colormap = (int)ed->fields.client->colormap;
 215         e->render.frame = (int)ed->fields.client->frame;
 216         e->render.skinnum = (int)ed->fields.client->skin;
 217         e->render.effects |= e->render.model->flags2 & (EF_FULLBRIGHT | EF_ADDITIVE);
 218         scale = 1;
 219         // FIXME: renderflags should be in the cl_entvars_t
 220 #if 1
 221         renderflags = 0;
 222         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_renderflags)) && val->_float)       renderflags = (int)val->_float;
 223 #else
 224         renderflags = (int)ed->fields.client->renderflags;
 225 #endif
 226
 227         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_alpha)) && val->_float)             e->render.alpha = val->_float;
 228         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_scale)) && val->_float)             e->render.scale = scale = val->_float;
 229         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_colormod)) && VectorLength2(val->vector))   VectorCopy(val->vector, e->render.colormod);
 230         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_effects)) && val->_float)   e->render.effects = (int)val->_float;
 231         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_tag_entity)) && val->edict)
 232         {
 233                 int tagentity;
 234                 int tagindex = 0;
 235                 tagentity = val->edict;
 236                 if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_tag_index)) && val->_float)
 237                         tagindex = (int)val->_float;
 238                 // FIXME: calculate tag matrix
 239                 Matrix4x4_CreateIdentity(&tagmatrix);
 240         }
 241         else
 242                 Matrix4x4_CreateIdentity(&tagmatrix);
 243
 244         if (renderflags & RF_USEAXIS)
 245         {
 246                 vec3_t left;
 247                 VectorNegate(prog->globals.client->v_right, left);
 248                 Matrix4x4_FromVectors(&matrix2, prog->globals.client->v_forward, left, prog->globals.client->v_up, ed->fields.client->origin);
 249         }
 250         else
 251         {
 252                 vec3_t angles;
 253                 VectorCopy(ed->fields.client->angles, angles);
 254                 // if model is alias, reverse pitch direction
 255                 if (e->render.model->type == mod_alias)
 256                         angles[0] = -angles[0];
 257
 258                 // set up the render matrix
 259                 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);
 260         }
 261
 262         // FIXME: csqc has frame1/frame2/frame1time/frame2time/lerpfrac but this implementation's cl_entvars_t lacks those fields
 263         e->render.frame1 = e->render.frame = ed->fields.client->frame;
 264         e->render.frame1time = e->render.frame2time = 0;
 265         e->render.framelerp = 0;
 266
 267         // concat the matrices to make the entity relative to its tag
 268         Matrix4x4_Concat(&e->render.matrix, &tagmatrix, &matrix2);
 269         // make the other useful stuff
 270         CL_UpdateRenderEntity(&e->render);
 271
 272         i = 0;
 273         if((val = PRVM_GETEDICTFIELDVALUE(ed, csqc_fieldoff_renderflags)) && val->_float)
 274         {
 275                 i = (int)val->_float;
 276                 if(i & RF_VIEWMODEL)    e->render.flags |= RENDER_VIEWMODEL;
 277                 if(i & RF_EXTERNALMODEL)e->render.flags |= RENDER_EXTERIORMODEL;
 278                 if(i & RF_DEPTHHACK)    e->render.effects |= EF_NODEPTHTEST;
 279                 if(i & RF_ADDITIVE)             e->render.effects |= EF_ADDITIVE;
 280         }
 281
 282         // transparent stuff can't be lit during the opaque stage
 283         if (e->render.effects & (EF_ADDITIVE | EF_NODEPTHTEST) || e->render.alpha < 1)
 284                 e->render.flags |= RENDER_TRANSPARENT;
 285         // double sided rendering mode causes backfaces to be visible
 286         // (mostly useful on transparent stuff)
 287         if (e->render.effects & EF_DOUBLESIDED)
 288                 e->render.flags |= RENDER_NOCULLFACE;
 289         // either fullbright or lit
 290         if (!(e->render.effects & EF_FULLBRIGHT) && !r_fullbright.integer)
 291                 e->render.flags |= RENDER_LIGHT;
 292         // hide player shadow during intermission or nehahra movie
 293         if (!(e->render.effects & EF_NOSHADOW)
 294          && !(e->render.flags & (RENDER_VIEWMODEL | RENDER_TRANSPARENT))
 295          && (!(e->render.flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 296                 e->render.flags |= RENDER_SHADOW;
 297
 298         return true;
 299 }
 300
 301 qboolean CL_VM_InputEvent (qboolean pressed, int key)
 302 {
 303         qboolean r;
 304         if(!csqc_loaded)
 305                 return false;
 306         CSQC_BEGIN
 307                 *prog->time = cl.time;
 308                 PRVM_G_FLOAT(OFS_PARM0) = pressed;
 309                 PRVM_G_FLOAT(OFS_PARM1) = key;
 310                 PRVM_ExecuteProgram (prog->globals.client->CSQC_InputEvent, CL_F_INPUTEVENT);
 311                 r = CSQC_RETURNVAL;
 312         CSQC_END
 313         return r;
 314 }
 315
 316 qboolean CL_VM_UpdateView (void)
 317 {
 318 //      vec3_t oldangles;
 319         if(!csqc_loaded)
 320                 return false;
 321         CSQC_BEGIN
 322                 //VectorCopy(cl.viewangles, oldangles);
 323                 *prog->time = cl.time;
 324                 CSQC_SetGlobals();
 325                 r_refdef.numentities = 0;
 326                 PRVM_ExecuteProgram (prog->globals.client->CSQC_UpdateView, CL_F_UPDATEVIEW);
 327                 //VectorCopy(oldangles, cl.viewangles);
 328         CSQC_END
 329         return true;
 330 }
 331
 332 extern sizebuf_t vm_tempstringsbuf;
 333 qboolean CL_VM_ConsoleCommand (const char *cmd)
 334 {
 335         int restorevm_tempstringsbuf_cursize;
 336         qboolean r;
 337         if(!csqc_loaded)
 338                 return false;
 339         CSQC_BEGIN
 340                 *prog->time = cl.time;
 341                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 342                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(cmd);
 343                 PRVM_ExecuteProgram (prog->globals.client->CSQC_ConsoleCommand, CL_F_CONSOLECOMMAND);
 344                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 345                 r = CSQC_RETURNVAL;
 346         CSQC_END
 347         return r;
 348 }
 349
 350 qboolean CL_VM_Parse_TempEntity (void)
 351 {
 352         int                     t;
 353         qboolean        r;
 354         if(!csqc_loaded || !CSQC_Parse_TempEntity)
 355                 return false;
 356         t = msg_readcount;
 357         CSQC_BEGIN
 358                 *prog->time = cl.time;
 359                 PRVM_ExecuteProgram ((func_t)(CSQC_Parse_TempEntity - prog->functions), CL_F_PARSE_TEMPENTITY);
 360                 r = CSQC_RETURNVAL;
 361         CSQC_END
 362         if(!r)
 363         {
 364                 msg_readcount = t;
 365                 msg_badread = false;
 366         }
 367         return r;
 368 }
 369
 370 void CL_VM_Parse_StuffCmd (const char *msg)
 371 {
 372         int restorevm_tempstringsbuf_cursize;
 373         if(msg[0] == 'c')
 374         if(msg[1] == 's')
 375         if(msg[2] == 'q')
 376         if(msg[3] == 'c')
 377         {
 378                 // if this is setting a csqc variable, deprotect csqc_progcrc
 379                 // temporarily so that it can be set by the cvar command,
 380                 // and then reprotect it afterwards
 381                 int crcflags = csqc_progcrc.flags;
 382                 int sizeflags = csqc_progcrc.flags;
 383                 csqc_progcrc.flags &= ~CVAR_READONLY;
 384                 csqc_progsize.flags &= ~CVAR_READONLY;
 385                 Cmd_ExecuteString (msg, src_command);
 386                 csqc_progcrc.flags = crcflags;
 387                 csqc_progsize.flags = sizeflags;
 388                 return;
 389         }
 390         if(!csqc_loaded || !CSQC_Parse_StuffCmd)
 391         {
 392                 Cbuf_AddText(msg);
 393                 return;
 394         }
 395         CSQC_BEGIN
 396                 *prog->time = cl.time;
 397                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 398                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 399                 PRVM_ExecuteProgram ((func_t)(CSQC_Parse_StuffCmd - prog->functions), CL_F_PARSE_STUFFCMD);
 400                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 401         CSQC_END
 402 }
 403
 404 static void CL_VM_Parse_Print (const char *msg)
 405 {
 406         int restorevm_tempstringsbuf_cursize;
 407         CSQC_BEGIN
 408                 *prog->time = cl.time;
 409                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 410                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 411                 PRVM_ExecuteProgram ((func_t)(CSQC_Parse_Print - prog->functions), CL_F_PARSE_PRINT);
 412                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 413         CSQC_END
 414 }
 415
 416 void CSQC_AddPrintText (const char *msg)
 417 {
 418         size_t i;
 419         if(!csqc_loaded || !CSQC_Parse_Print)
 420         {
 421                 Con_Print(msg);
 422                 return;
 423         }
 424         // FIXME: is this bugged?
 425         i = strlen(msg)-1;
 426         if(msg[i] != '\n' && msg[i] != '\r')
 427         {
 428                 if(strlen(csqc_printtextbuf)+i >= CSQC_PRINTBUFFERLEN)
 429                 {
 430                         CL_VM_Parse_Print(csqc_printtextbuf);
 431                         csqc_printtextbuf[0] = 0;
 432                 }
 433                 else
 434                         strlcat(csqc_printtextbuf, msg, CSQC_PRINTBUFFERLEN);
 435                 return;
 436         }
 437         strlcat(csqc_printtextbuf, msg, CSQC_PRINTBUFFERLEN);
 438         CL_VM_Parse_Print(csqc_printtextbuf);
 439         csqc_printtextbuf[0] = 0;
 440 }
 441
 442 void CL_VM_Parse_CenterPrint (const char *msg)
 443 {
 444         int restorevm_tempstringsbuf_cursize;
 445         if(!csqc_loaded || !CSQC_Parse_CenterPrint)
 446         {
 447                 SCR_CenterPrint((char*)msg);
 448                 return;
 449         }
 450         CSQC_BEGIN
 451                 *prog->time = cl.time;
 452                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 453                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 454                 PRVM_ExecuteProgram ((func_t)(CSQC_Parse_CenterPrint - prog->functions), CL_F_PARSE_CENTERPRINT);
 455                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 456         CSQC_END
 457 }
 458
 459 float CL_VM_Event (float event)         //[515]: needed ? I'd say "YES", but don't know for what :D
 460 {
 461         float r;
 462         if(!csqc_loaded || !CSQC_Event)
 463                 return 0;
 464         CSQC_BEGIN
 465                 *prog->time = cl.time;
 466                 PRVM_G_FLOAT(OFS_PARM0) = event;
 467                 PRVM_ExecuteProgram ((func_t)(CSQC_Event - prog->functions), CL_F_EVENT);
 468                 r = CSQC_RETURNVAL;
 469         CSQC_END
 470         return r;
 471 }
 472
 473 void CSQC_ReadEntities (void)
 474 {
 475         unsigned short entnum, oldself, realentnum;
 476         CSQC_BEGIN
 477                 *prog->time = cl.time;
 478                 oldself = prog->globals.client->self;
 479                 while(1)
 480                 {
 481                         entnum = MSG_ReadShort();
 482                         if(!entnum)
 483                                 return;
 484                         realentnum = entnum & 0x7FFF;
 485                         prog->globals.client->self = csqc_sv2csqcents[realentnum];
 486                         if(entnum & 0x8000)
 487                         {
 488                                 if(prog->globals.client->self)
 489                                 {
 490                                         PRVM_ExecuteProgram((func_t)(CSQC_Ent_Remove - prog->functions), CL_F_ENT_REMOVE);
 491                                         csqc_sv2csqcents[realentnum] = 0;
 492                                 }
 493                                 else
 494                                         Con_Printf("Smth bad happens in csqc...\n");    //[515]: never happens ?
 495                         }
 496                         else
 497                         {
 498                                 if(!prog->globals.client->self)
 499                                 {
 500                                         prvm_edict_t    *ed;
 501                                         ed = PRVM_ED_Alloc();
 502                                         ed->fields.client->entnum = realentnum;
 503                                         prog->globals.client->self = csqc_sv2csqcents[realentnum] = PRVM_EDICT_TO_PROG(ed);
 504                                         PRVM_G_FLOAT(OFS_PARM0) = 1;
 505                                 }
 506                                 else
 507                                         PRVM_G_FLOAT(OFS_PARM0) = 0;
 508                                 PRVM_ExecuteProgram((func_t)(CSQC_Ent_Update - prog->functions), CL_F_ENT_UPDATE);
 509                         }
 510                 }
 511                 prog->globals.client->self = oldself;
 512         CSQC_END
 513 }
 514
 515 void Cmd_ClearCsqcFuncs (void);
 516
 517 void CL_VM_Init (void)
 518 {
 519         unsigned char *csprogsdata;
 520         fs_offset_t csprogsdatasize;
 521         int csprogsdatacrc, requiredcrc;
 522         int requiredsize;
 523
 524         // reset csqc_progcrc after reading it, so that changing servers doesn't
 525         // expect csqc on the next server
 526         requiredcrc = csqc_progcrc.integer;
 527         requiredsize = csqc_progsize.integer;
 528         Cvar_SetValueQuick(&csqc_progcrc, -1);
 529         Cvar_SetValueQuick(&csqc_progsize, -1);
 530
 531         csqc_loaded = false;
 532         memset(cl.csqc_model_precache, 0, sizeof(cl.csqc_model_precache));
 533         memset(&cl.csqc_vidvars, true, sizeof(csqc_vidvars_t));
 534
 535         // if the server is not requesting a csprogs, then we're done here
 536         if (requiredcrc < 0)
 537                 return;
 538
 539         // see if the requested csprogs.dat file matches the requested crc
 540         csprogsdatacrc = -1;
 541         csprogsdata = FS_LoadFile(va("dlcache/%s.%i.%i", csqc_progname.string, requiredsize, requiredcrc), tempmempool, true, &csprogsdatasize);
 542         if (!csprogsdata)
 543                 csprogsdata = FS_LoadFile(csqc_progname.string, tempmempool, true, &csprogsdatasize);
 544         if (csprogsdata)
 545         {
 546                 csprogsdatacrc = CRC_Block(csprogsdata, csprogsdatasize);
 547                 Mem_Free(csprogsdata);
 548                 if (csprogsdatacrc != requiredcrc || csprogsdatasize != requiredsize)
 549                 {
 550                         if (cls.demoplayback)
 551                         {
 552                                 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);
 553                                 return;
 554                         }
 555                         else
 556                         {
 557                                 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);
 558                                 CL_Disconnect();
 559                                 return;
 560                         }
 561                 }
 562         }
 563         else
 564         {
 565                 if (requiredcrc >= 0)
 566                 {
 567                         if (cls.demoplayback)
 568                                 Con_Printf("CL_VM_Init: demo requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 569                         else
 570                                 Con_Printf("CL_VM_Init: server requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 571                         CL_Disconnect();
 572                 }
 573                 return;
 574         }
 575
 576         PRVM_Begin;
 577         PRVM_InitProg(PRVM_CLIENTPROG);
 578
 579         csqc_mempool = Mem_AllocPool("CSQC", 0, NULL);
 580
 581         // allocate the mempools
 582         prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
 583         prog->headercrc = CL_PROGHEADER_CRC;
 584         prog->edictprivate_size = 0; // no private struct used
 585         prog->name = CL_NAME;
 586         prog->num_edicts = 1;
 587         prog->limit_edicts = CL_MAX_EDICTS;
 588         prog->extensionstring = vm_cl_extensions;
 589         prog->builtins = vm_cl_builtins;
 590         prog->numbuiltins = vm_cl_numbuiltins;
 591         prog->init_cmd = VM_CL_Cmd_Init;
 592         prog->reset_cmd = VM_CL_Cmd_Reset;
 593         prog->error_cmd = CL_VM_Error;
 594
 595         PRVM_LoadProgs(csqc_progname.string, cl_numrequiredfunc, cl_required_func, 0, NULL);
 596
 597         if(prog->loaded)
 598                 Con_Printf("CSQC ^5loaded (crc=%i, size=%i)\n", csprogsdatacrc, (int)csprogsdatasize);
 599         else
 600         {
 601                 CL_VM_Error("CSQC ^2failed to load\n");
 602                 if(!sv.active)
 603                         CL_Disconnect();
 604                 return;
 605         }
 606
 607         //[515]: optional fields & funcs
 608         CL_VM_FindEdictFieldOffsets();
 609
 610         // set time
 611         *prog->time = cl.time;
 612         csqc_frametime = 0;
 613
 614         prog->globals.client->mapname = PRVM_SetEngineString(cl.worldmodel->name);
 615         prog->globals.client->player_localentnum = cl.playerentity;
 616
 617         // call the prog init
 618         PRVM_ExecuteProgram((func_t) (PRVM_ED_FindFunction(CL_F_INIT) - prog->functions), CL_F_INIT);
 619
 620         PRVM_End;
 621         csqc_loaded = true;
 622
 623         csqc_sv2csqcents = (unsigned short *)Mem_Alloc(csqc_mempool, MAX_EDICTS*sizeof(unsigned short));
 624         memset(csqc_sv2csqcents, 0, MAX_EDICTS*sizeof(unsigned short));
 625
 626         cl.csqc_vidvars.drawcrosshair = false;
 627         cl.csqc_vidvars.drawenginesbar = false;
 628 }
 629
 630 void CL_VM_ShutDown (void)
 631 {
 632         Cmd_ClearCsqcFuncs();
 633         Cvar_SetValueQuick(&csqc_progcrc, -1);
 634         Cvar_SetValueQuick(&csqc_progsize, -1);
 635         if(!csqc_loaded)
 636                 return;
 637         CSQC_BEGIN
 638                 *prog->time = cl.time;
 639                 PRVM_ExecuteProgram((func_t) (PRVM_ED_FindFunction(CL_F_SHUTDOWN) - prog->functions), CL_F_SHUTDOWN);
 640                 PRVM_ResetProg();
 641         CSQC_END
 642         Con_Print("CSQC ^1unloaded\n");
 643         csqc_loaded = false;
 644         Mem_FreePool(&csqc_mempool);
 645 }