csprogs.c

   1 #include "quakedef.h"
   2 #include "progsvm.h"
   3 #include "clprogdefs.h"
   4 #include "csprogs.h"
   5 #include "cl_collision.h"
   6 #include "snd_main.h"
   7 #include "clvm_cmds.h"
   8 #include "prvm_cmds.h"
   9
  10 //============================================================================
  11 // Client prog handling
  12 //[515]: omg !!! optimize it ! a lot of hacks here and there also :P
  13
  14 #define CSQC_RETURNVAL  prog->globals.generic[OFS_RETURN]
  15 #define CSQC_BEGIN              csqc_tmpprog=prog;prog=0;PRVM_SetProg(PRVM_CLIENTPROG);
  16 #define CSQC_END                prog=csqc_tmpprog;
  17
  18 static prvm_prog_t *csqc_tmpprog;
  19
  20 void CL_VM_PreventInformationLeaks(void)
  21 {
  22         prvm_eval_t *val;
  23         if(!cl.csqc_loaded)
  24                 return;
  25         CSQC_BEGIN
  26                 VM_ClearTraceGlobals();
  27                 if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_networkentity)))
  28                         val->_float = 0;
  29         CSQC_END
  30 }
  31
  32 //[515]: these are required funcs
  33 static const char *cl_required_func[] =
  34 {
  35         "CSQC_Init",
  36         "CSQC_InputEvent",
  37         "CSQC_UpdateView",
  38         "CSQC_ConsoleCommand",
  39 };
  40
  41 static int cl_numrequiredfunc = sizeof(cl_required_func) / sizeof(char*);
  42
  43 void CL_VM_Error (const char *format, ...) DP_FUNC_PRINTF(1);
  44 void CL_VM_Error (const char *format, ...)      //[515]: hope it will be never executed =)
  45 {
  46         char errorstring[4096];
  47         va_list argptr;
  48
  49         va_start (argptr, format);
  50         dpvsnprintf (errorstring, sizeof(errorstring), format, argptr);
  51         va_end (argptr);
  52 //      Con_Printf( "CL_VM_Error: %s\n", errorstring );
  53
  54         PRVM_Crash();
  55         cl.csqc_loaded = false;
  56
  57         Cvar_SetValueQuick(&csqc_progcrc, -1);
  58         Cvar_SetValueQuick(&csqc_progsize, -1);
  59
  60 //      Host_AbortCurrentFrame();       //[515]: hmmm... if server says it needs csqc then client MUST disconnect
  61         Host_Error("CL_VM_Error: %s", errorstring);
  62 }
  63 void CL_VM_UpdateDmgGlobals (int dmg_take, int dmg_save, vec3_t dmg_origin)
  64 {
  65         prvm_eval_t *val;
  66         if(cl.csqc_loaded)
  67         {
  68                 CSQC_BEGIN
  69                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_take);
  70                 if(val)
  71                         val->_float = dmg_take;
  72                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_save);
  73                 if(val)
  74                         val->_float = dmg_save;
  75                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_origin);
  76                 if(val)
  77                 {
  78                         val->vector[0] = dmg_origin[0];
  79                         val->vector[1] = dmg_origin[1];
  80                         val->vector[2] = dmg_origin[2];
  81                 }
  82                 CSQC_END
  83         }
  84 }
  85
  86 void CSQC_UpdateNetworkTimes(double newtime, double oldtime)
  87 {
  88         prvm_eval_t *val;
  89         if(!cl.csqc_loaded)
  90                 return;
  91         CSQC_BEGIN
  92         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.servertime)))
  93                 val->_float = newtime;
  94         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.serverprevtime)))
  95                 val->_float = oldtime;
  96         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.serverdeltatime)))
  97                 val->_float = newtime - oldtime;
  98         CSQC_END
  99 }
 100
 101 //[515]: set globals before calling R_UpdateView, WEIRD CRAP
 102 static void CSQC_SetGlobals (void)
 103 {
 104         prvm_eval_t *val;
 105         CSQC_BEGIN
 106                 prog->globals.client->time = cl.time;
 107                 prog->globals.client->frametime = max(0, cl.time - cl.oldtime);
 108                 prog->globals.client->servercommandframe = cls.servermovesequence;
 109                 prog->globals.client->clientcommandframe = cl.movecmd[0].sequence;
 110                 VectorCopy(cl.viewangles, prog->globals.client->input_angles);
 111                 // // FIXME: this actually belongs into getinputstate().. [12/17/2007 Black]
 112                 prog->globals.client->input_buttons = cl.movecmd[0].buttons;
 113                 VectorSet(prog->globals.client->input_movevalues, cl.movecmd[0].forwardmove, cl.movecmd[0].sidemove, cl.movecmd[0].upmove);
 114                 VectorCopy(cl.csqc_vieworiginfromengine, cl.csqc_vieworigin);
 115                 VectorCopy(cl.csqc_viewanglesfromengine, cl.csqc_viewangles);
 116
 117                 // LordHavoc: Spike says not to do this, but without pmove_org the
 118                 // CSQC is useless as it can't alter the view origin without
 119                 // completely replacing it
 120                 Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, prog->globals.client->pmove_org);
 121                 VectorCopy(cl.movement_velocity, prog->globals.client->pmove_vel);
 122
 123                 if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.view_angles)))
 124                         VectorCopy(cl.viewangles, val->vector);
 125                 if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.view_punchangle)))
 126                         VectorCopy(cl.punchangle, val->vector);
 127                 if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.view_punchvector)))
 128                         VectorCopy(cl.punchvector, val->vector);
 129                 prog->globals.client->maxclients = cl.maxclients;
 130         CSQC_END
 131 }
 132
 133 void CSQC_Predraw (prvm_edict_t *ed)
 134 {
 135         int b;
 136         if(!ed->fields.client->predraw)
 137                 return;
 138         b = prog->globals.client->self;
 139         prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 140         PRVM_ExecuteProgram(ed->fields.client->predraw, "CSQC_Predraw: NULL function\n");
 141         prog->globals.client->self = b;
 142 }
 143
 144 void CSQC_Think (prvm_edict_t *ed)
 145 {
 146         int b;
 147         if(ed->fields.client->think)
 148         if(ed->fields.client->nextthink && ed->fields.client->nextthink <= prog->globals.client->time)
 149         {
 150                 ed->fields.client->nextthink = 0;
 151                 b = prog->globals.client->self;
 152                 prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 153                 PRVM_ExecuteProgram(ed->fields.client->think, "CSQC_Think: NULL function\n");
 154                 prog->globals.client->self = b;
 155         }
 156 }
 157
 158 extern cvar_t cl_noplayershadow;
 159 extern cvar_t r_equalize_entities_fullbright;
 160 qboolean CSQC_AddRenderEdict(prvm_edict_t *ed, int edictnum)
 161 {
 162         int renderflags;
 163         int c;
 164         float scale;
 165         prvm_eval_t *val;
 166         entity_render_t *entrender;
 167         dp_model_t *model;
 168
 169         model = CL_GetModelFromEdict(ed);
 170         if (!model)
 171                 return false;
 172
 173         if (edictnum)
 174         {
 175                 if (r_refdef.scene.numentities >= r_refdef.scene.maxentities)
 176                         return false;
 177                 entrender = cl.csqcrenderentities + edictnum;
 178                 r_refdef.scene.entities[r_refdef.scene.numentities++] = entrender;
 179                 entrender->entitynumber = edictnum + MAX_EDICTS;
 180                 //entrender->shadertime = 0; // shadertime was set by spawn()
 181                 entrender->flags = 0;
 182                 entrender->alpha = 1;
 183                 entrender->scale = 1;
 184                 VectorSet(entrender->colormod, 1, 1, 1);
 185                 VectorSet(entrender->glowmod, 1, 1, 1);
 186                 entrender->allowdecals = true;
 187         }
 188         else
 189         {
 190                 entrender = CL_NewTempEntity(0);
 191                 if (!entrender)
 192                         return false;
 193         }
 194
 195         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.userwavefunc_param0)))    entrender->userwavefunc_param[0] = val->_float;
 196         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.userwavefunc_param1)))    entrender->userwavefunc_param[1] = val->_float;
 197         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.userwavefunc_param2)))    entrender->userwavefunc_param[2] = val->_float;
 198         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.userwavefunc_param3)))    entrender->userwavefunc_param[3] = val->_float;
 199
 200         entrender->model = model;
 201         entrender->skinnum = (int)ed->fields.client->skin;
 202         entrender->effects |= entrender->model->effects;
 203         scale = 1;
 204         renderflags = 0;
 205         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.renderflags)) && val->_float)     renderflags = (int)val->_float;
 206         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.alpha)) && val->_float)           entrender->alpha = val->_float;
 207         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.scale)) && val->_float)           entrender->scale = scale = val->_float;
 208         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.colormod)) && VectorLength2(val->vector)) VectorCopy(val->vector, entrender->colormod);
 209         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.glowmod)) && VectorLength2(val->vector))  VectorCopy(val->vector, entrender->glowmod);
 210         if(ed->fields.client->effects)  entrender->effects |= (int)ed->fields.client->effects;
 211         if (!VectorLength2(entrender->colormod))
 212                 VectorSet(entrender->colormod, 1, 1, 1);
 213         if (!VectorLength2(entrender->glowmod))
 214                 VectorSet(entrender->glowmod, 1, 1, 1);
 215
 216         // LordHavoc: use the CL_GetTagMatrix function on self to ensure consistent behavior (duplicate code would be bad)
 217         CL_GetTagMatrix(&entrender->matrix, ed, 0);
 218
 219         // set up the animation data
 220         VM_GenerateFrameGroupBlend(ed->priv.server->framegroupblend, ed);
 221         VM_FrameBlendFromFrameGroupBlend(ed->priv.server->frameblend, ed->priv.server->framegroupblend, model);
 222         VM_UpdateEdictSkeleton(ed, model, ed->priv.server->frameblend);
 223         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.shadertime))) entrender->shadertime = val->_float;
 224
 225         // transparent offset
 226         if ((renderflags & RF_USETRANSPARENTOFFSET) && (val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.transparent_offset)))
 227                 entrender->transparent_offset = val->_float;
 228
 229         if(renderflags)
 230         {
 231                 if(renderflags & RF_VIEWMODEL)  entrender->flags |= RENDER_VIEWMODEL | RENDER_NODEPTHTEST;
 232                 if(renderflags & RF_EXTERNALMODEL)entrender->flags |= RENDER_EXTERIORMODEL;
 233                 if(renderflags & RF_NOCULL)             entrender->flags |= RENDER_NOCULL;
 234                 if(renderflags & RF_DEPTHHACK)  entrender->flags |= RENDER_NODEPTHTEST;
 235                 if(renderflags & RF_ADDITIVE)           entrender->flags |= RENDER_ADDITIVE;
 236         }
 237
 238         c = (int)ed->fields.client->colormap;
 239         if (c <= 0)
 240                 CL_SetEntityColormapColors(entrender, -1);
 241         else if (c <= cl.maxclients && cl.scores != NULL)
 242                 CL_SetEntityColormapColors(entrender, cl.scores[c-1].colors);
 243         else
 244                 CL_SetEntityColormapColors(entrender, c);
 245
 246         entrender->flags &= ~(RENDER_SHADOW | RENDER_LIGHT | RENDER_NOSELFSHADOW);
 247         // either fullbright or lit
 248         if(!r_fullbright.integer)
 249         {
 250                 if (!(entrender->effects & EF_FULLBRIGHT) && !(renderflags & RF_FULLBRIGHT))
 251                         entrender->flags |= RENDER_LIGHT;
 252                 else if(r_equalize_entities_fullbright.integer)
 253                         entrender->flags |= RENDER_LIGHT | RENDER_EQUALIZE;
 254         }
 255         // hide player shadow during intermission or nehahra movie
 256         if (!(entrender->effects & (EF_NOSHADOW | EF_ADDITIVE | EF_NODEPTHTEST))
 257          &&  (entrender->alpha >= 1)
 258          && !(renderflags & RF_NOSHADOW)
 259          && !(entrender->flags & RENDER_VIEWMODEL)
 260          && (!(entrender->flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 261                 entrender->flags |= RENDER_SHADOW;
 262         if (entrender->flags & RENDER_VIEWMODEL)
 263                 entrender->flags |= RENDER_NOSELFSHADOW;
 264         if (entrender->effects & EF_NOSELFSHADOW)
 265                 entrender->flags |= RENDER_NOSELFSHADOW;
 266         if (entrender->effects & EF_NODEPTHTEST)
 267                 entrender->flags |= RENDER_NODEPTHTEST;
 268         if (entrender->effects & EF_ADDITIVE)
 269                 entrender->flags |= RENDER_ADDITIVE;
 270         if (entrender->effects & EF_DOUBLESIDED)
 271                 entrender->flags |= RENDER_DOUBLESIDED;
 272
 273         // make the other useful stuff
 274         memcpy(entrender->framegroupblend, ed->priv.server->framegroupblend, sizeof(ed->priv.server->framegroupblend));
 275         CL_UpdateRenderEntity(entrender);
 276         // override animation data with full control
 277         memcpy(entrender->frameblend, ed->priv.server->frameblend, sizeof(ed->priv.server->frameblend));
 278         if (ed->priv.server->skeleton.relativetransforms)
 279                 entrender->skeleton = &ed->priv.server->skeleton;
 280         else
 281                 entrender->skeleton = NULL;
 282
 283         return true;
 284 }
 285
 286 qboolean CL_VM_InputEvent (qboolean down, int key, int ascii)
 287 {
 288         qboolean r;
 289
 290         if(!cl.csqc_loaded)
 291                 return false;
 292
 293         CSQC_BEGIN
 294                 if (!prog->funcoffsets.CSQC_InputEvent)
 295                         r = false;
 296                 else
 297                 {
 298                         prog->globals.client->time = cl.time;
 299                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 300                         PRVM_G_FLOAT(OFS_PARM0) = !down; // 0 is down, 1 is up
 301                         PRVM_G_FLOAT(OFS_PARM1) = key;
 302                         PRVM_G_FLOAT(OFS_PARM2) = ascii;
 303                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_InputEvent, "QC function CSQC_InputEvent is missing");
 304                         r = CSQC_RETURNVAL != 0;
 305                 }
 306         CSQC_END
 307         return r;
 308 }
 309
 310 qboolean CL_VM_UpdateView (void)
 311 {
 312         vec3_t emptyvector;
 313         emptyvector[0] = 0;
 314         emptyvector[1] = 0;
 315         emptyvector[2] = 0;
 316 //      vec3_t oldangles;
 317         if(!cl.csqc_loaded)
 318                 return false;
 319         R_TimeReport("pre-UpdateView");
 320         CSQC_BEGIN
 321                 //VectorCopy(cl.viewangles, oldangles);
 322                 prog->globals.client->time = cl.time;
 323                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 324                 CSQC_SetGlobals();
 325                 // clear renderable entity and light lists to prevent crashes if the
 326                 // CSQC_UpdateView function does not call R_ClearScene as it should
 327                 r_refdef.scene.numentities = 0;
 328                 r_refdef.scene.numlights = 0;
 329                 // pass in width and height as parameters (EXT_CSQC_1)
 330                 PRVM_G_FLOAT(OFS_PARM0) = vid.width;
 331                 PRVM_G_FLOAT(OFS_PARM1) = vid.height;
 332                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_UpdateView, "QC function CSQC_UpdateView is missing");
 333                 //VectorCopy(oldangles, cl.viewangles);
 334                 // Dresk : Reset Dmg Globals Here
 335                 CL_VM_UpdateDmgGlobals(0, 0, emptyvector);
 336         CSQC_END
 337         R_TimeReport("UpdateView");
 338         return true;
 339 }
 340
 341 extern sizebuf_t vm_tempstringsbuf;
 342 qboolean CL_VM_ConsoleCommand (const char *cmd)
 343 {
 344         int restorevm_tempstringsbuf_cursize;
 345         qboolean r = false;
 346         if(!cl.csqc_loaded)
 347                 return false;
 348         CSQC_BEGIN
 349         if (prog->funcoffsets.CSQC_ConsoleCommand)
 350         {
 351                 prog->globals.client->time = cl.time;
 352                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 353                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 354                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(cmd);
 355                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_ConsoleCommand, "QC function CSQC_ConsoleCommand is missing");
 356                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 357                 r = CSQC_RETURNVAL != 0;
 358         }
 359         CSQC_END
 360         return r;
 361 }
 362
 363 qboolean CL_VM_Parse_TempEntity (void)
 364 {
 365         int                     t;
 366         qboolean        r = false;
 367         if(!cl.csqc_loaded)
 368                 return false;
 369         CSQC_BEGIN
 370         if(prog->funcoffsets.CSQC_Parse_TempEntity)
 371         {
 372                 t = msg_readcount;
 373                 prog->globals.client->time = cl.time;
 374                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 375                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_TempEntity, "QC function CSQC_Parse_TempEntity is missing");
 376                 r = CSQC_RETURNVAL != 0;
 377                 if(!r)
 378                 {
 379                         msg_readcount = t;
 380                         msg_badread = false;
 381                 }
 382         }
 383         CSQC_END
 384         return r;
 385 }
 386
 387 void CL_VM_Parse_StuffCmd (const char *msg)
 388 {
 389         int restorevm_tempstringsbuf_cursize;
 390         if(msg[0] == 'c')
 391         if(msg[1] == 's')
 392         if(msg[2] == 'q')
 393         if(msg[3] == 'c')
 394         {
 395                 // if this is setting a csqc variable, deprotect csqc_progcrc
 396                 // temporarily so that it can be set by the cvar command,
 397                 // and then reprotect it afterwards
 398                 int crcflags = csqc_progcrc.flags;
 399                 int sizeflags = csqc_progcrc.flags;
 400                 csqc_progcrc.flags &= ~CVAR_READONLY;
 401                 csqc_progsize.flags &= ~CVAR_READONLY;
 402                 Cmd_ExecuteString (msg, src_command);
 403                 csqc_progcrc.flags = crcflags;
 404                 csqc_progsize.flags = sizeflags;
 405                 return;
 406         }
 407
 408         if(cls.demoplayback)
 409         if(!strncmp(msg, "curl --clear_autodownload\ncurl --pak --forthismap --as ", 55))
 410         {
 411                 // special handling for map download commands
 412                 // run these commands IMMEDIATELY, instead of waiting for a client frame
 413                 // that way, there is no black screen when playing back demos
 414                 // I know this is a really ugly hack, but I can't think of any better way
 415                 // FIXME find the actual CAUSE of this, and make demo playback WAIT
 416                 // until all maps are loaded, then remove this hack
 417
 418                 char buf[MAX_INPUTLINE];
 419                 const char *p, *q;
 420                 size_t l;
 421
 422                 p = msg;
 423
 424                 for(;;)
 425                 {
 426                         q = strchr(p, '\n');
 427                         if(q)
 428                                 l = q - p;
 429                         else
 430                                 l = strlen(p);
 431                         if(l > sizeof(buf) - 1)
 432                                 l = sizeof(buf) - 1;
 433                         strlcpy(buf, p, l + 1); // strlcpy needs a + 1 as it includes the newline!
 434
 435                         Cmd_ExecuteString(buf, src_command);
 436
 437                         p += l;
 438                         if(*p == '\n')
 439                                 ++p; // skip the newline and continue
 440                         else
 441                                 break; // end of string or overflow
 442                 }
 443                 Cmd_ExecuteString("curl --clear_autodownload", src_command); // don't inhibit CSQC loading
 444                 return;
 445         }
 446
 447         if(!cl.csqc_loaded)
 448         {
 449                 Cbuf_AddText(msg);
 450                 return;
 451         }
 452         CSQC_BEGIN
 453         if(prog->funcoffsets.CSQC_Parse_StuffCmd)
 454         {
 455                 prog->globals.client->time = cl.time;
 456                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 457                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 458                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 459                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_StuffCmd, "QC function CSQC_Parse_StuffCmd is missing");
 460                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 461         }
 462         else
 463                 Cbuf_AddText(msg);
 464         CSQC_END
 465 }
 466
 467 static void CL_VM_Parse_Print (const char *msg)
 468 {
 469         int restorevm_tempstringsbuf_cursize;
 470         prog->globals.client->time = cl.time;
 471         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 472         restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 473         PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 474         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_Print, "QC function CSQC_Parse_Print is missing");
 475         vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 476 }
 477
 478 void CSQC_AddPrintText (const char *msg)
 479 {
 480         size_t i;
 481         if(!cl.csqc_loaded)
 482         {
 483                 Con_Print(msg);
 484                 return;
 485         }
 486         CSQC_BEGIN
 487         if(prog->funcoffsets.CSQC_Parse_Print)
 488         {
 489                 // FIXME: is this bugged?
 490                 i = strlen(msg)-1;
 491                 if(msg[i] != '\n' && msg[i] != '\r')
 492                 {
 493                         if(strlen(cl.csqc_printtextbuf)+i >= MAX_INPUTLINE)
 494                         {
 495                                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 496                                 cl.csqc_printtextbuf[0] = 0;
 497                         }
 498                         else
 499                                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 500                         return;
 501                 }
 502                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 503                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 504                 cl.csqc_printtextbuf[0] = 0;
 505         }
 506         else
 507                 Con_Print(msg);
 508         CSQC_END
 509 }
 510
 511 void CL_VM_Parse_CenterPrint (const char *msg)
 512 {
 513         int restorevm_tempstringsbuf_cursize;
 514         if(!cl.csqc_loaded)
 515         {
 516                 SCR_CenterPrint(msg);
 517                 return;
 518         }
 519         CSQC_BEGIN
 520         if(prog->funcoffsets.CSQC_Parse_CenterPrint)
 521         {
 522                 prog->globals.client->time = cl.time;
 523                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 524                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 525                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 526                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_CenterPrint, "QC function CSQC_Parse_CenterPrint is missing");
 527                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 528         }
 529         else
 530                 SCR_CenterPrint(msg);
 531         CSQC_END
 532 }
 533
 534 void CL_VM_UpdateIntermissionState (int intermission)
 535 {
 536         prvm_eval_t *val;
 537         if(cl.csqc_loaded)
 538         {
 539                 CSQC_BEGIN
 540                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.intermission);
 541                 if(val)
 542                         val->_float = intermission;
 543                 CSQC_END
 544         }
 545 }
 546 void CL_VM_UpdateShowingScoresState (int showingscores)
 547 {
 548         prvm_eval_t *val;
 549         if(cl.csqc_loaded)
 550         {
 551                 CSQC_BEGIN
 552                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.sb_showscores);
 553                 if(val)
 554                         val->_float = showingscores;
 555                 CSQC_END
 556         }
 557 }
 558 qboolean CL_VM_Event_Sound(int sound_num, float volume, int channel, float attenuation, int ent, vec3_t pos)
 559 {
 560         qboolean r = false;
 561         if(cl.csqc_loaded)
 562         {
 563                 CSQC_BEGIN
 564                 if(prog->funcoffsets.CSQC_Event_Sound)
 565                 {
 566                         prog->globals.client->time = cl.time;
 567                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 568                         PRVM_G_FLOAT(OFS_PARM0) = ent;
 569                         PRVM_G_FLOAT(OFS_PARM1) = channel;
 570                         PRVM_G_INT(OFS_PARM2) = PRVM_SetTempString(cl.sound_name[sound_num] );
 571                         PRVM_G_FLOAT(OFS_PARM3) = volume;
 572                         PRVM_G_FLOAT(OFS_PARM4) = attenuation;
 573                         VectorCopy(pos, PRVM_G_VECTOR(OFS_PARM5) );
 574                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event_Sound, "QC function CSQC_Event_Sound is missing");
 575                         r = CSQC_RETURNVAL != 0;
 576                 }
 577                 CSQC_END
 578         }
 579
 580         return r;
 581 }
 582 void CL_VM_UpdateCoopDeathmatchGlobals (int gametype)
 583 {
 584         // Avoid global names for clean(er) coding
 585         int localcoop;
 586         int localdeathmatch;
 587
 588         prvm_eval_t *val;
 589         if(cl.csqc_loaded)
 590         {
 591                 if(gametype == GAME_COOP)
 592                 {
 593                         localcoop = 1;
 594                         localdeathmatch = 0;
 595                 }
 596                 else
 597                 if(gametype == GAME_DEATHMATCH)
 598                 {
 599                         localcoop = 0;
 600                         localdeathmatch = 1;
 601                 }
 602                 else
 603                 {
 604                         // How did the ServerInfo send an unknown gametype?
 605                         // Better just assign the globals as 0...
 606                         localcoop = 0;
 607                         localdeathmatch = 0;
 608                 }
 609                 CSQC_BEGIN
 610                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.coop);
 611                 if(val)
 612                         val->_float = localcoop;
 613                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.deathmatch);
 614                 if(val)
 615                         val->_float = localdeathmatch;
 616                 CSQC_END
 617         }
 618 }
 619 float CL_VM_Event (float event)         //[515]: needed ? I'd say "YES", but don't know for what :D
 620 {
 621         float r = 0;
 622         if(!cl.csqc_loaded)
 623                 return 0;
 624         CSQC_BEGIN
 625         if(prog->funcoffsets.CSQC_Event)
 626         {
 627                 prog->globals.client->time = cl.time;
 628                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 629                 PRVM_G_FLOAT(OFS_PARM0) = event;
 630                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event, "QC function CSQC_Event is missing");
 631                 r = CSQC_RETURNVAL;
 632         }
 633         CSQC_END
 634         return r;
 635 }
 636
 637 void CSQC_ReadEntities (void)
 638 {
 639         unsigned short entnum, oldself, realentnum;
 640         if(!cl.csqc_loaded)
 641         {
 642                 Host_Error ("CSQC_ReadEntities: CSQC is not loaded");
 643                 return;
 644         }
 645
 646         CSQC_BEGIN
 647                 prog->globals.client->time = cl.time;
 648                 oldself = prog->globals.client->self;
 649                 while(1)
 650                 {
 651                         entnum = MSG_ReadShort();
 652                         if(!entnum || msg_badread)
 653                                 break;
 654                         realentnum = entnum & 0x7FFF;
 655                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum];
 656                         if(entnum & 0x8000)
 657                         {
 658                                 if(prog->globals.client->self)
 659                                 {
 660                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Remove, "QC function CSQC_Ent_Remove is missing");
 661                                         cl.csqc_server2csqcentitynumber[realentnum] = 0;
 662                                 }
 663                                 else
 664                                 {
 665                                         // LordHavoc: removing an entity that is already gone on
 666                                         // the csqc side is possible for legitimate reasons (such
 667                                         // as a repeat of the remove message), so no warning is
 668                                         // needed
 669                                         //Con_Printf("Bad csqc_server2csqcentitynumber map\n"); //[515]: never happens ?
 670                                 }
 671                         }
 672                         else
 673                         {
 674                                 if(!prog->globals.client->self)
 675                                 {
 676                                         if(!prog->funcoffsets.CSQC_Ent_Spawn)
 677                                         {
 678                                                 prvm_edict_t    *ed;
 679                                                 ed = PRVM_ED_Alloc();
 680                                                 ed->fields.client->entnum = realentnum;
 681                                                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT_TO_PROG(ed);
 682                                         }
 683                                         else
 684                                         {
 685                                                 // entity( float entnum ) CSQC_Ent_Spawn;
 686                                                 // the qc function should set entnum, too (this way it also can return world [2/1/2008 Andreas]
 687                                                 PRVM_G_FLOAT(OFS_PARM0) = (float) realentnum;
 688                                                 // make sure no one gets wrong ideas
 689                                                 prog->globals.client->self = 0;
 690                                                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Spawn, "QC function CSQC_Ent_Spawn is missing");
 691                                                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT( PRVM_G_INT( OFS_RETURN ) );
 692                                         }
 693                                         PRVM_G_FLOAT(OFS_PARM0) = 1;
 694                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 695                                 }
 696                                 else {
 697                                         PRVM_G_FLOAT(OFS_PARM0) = 0;
 698                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 699                                 }
 700                         }
 701                 }
 702                 prog->globals.client->self = oldself;
 703         CSQC_END
 704 }
 705
 706 void CL_VM_CB_BeginIncreaseEdicts(void)
 707 {
 708         // links don't survive the transition, so unlink everything
 709         World_UnlinkAll(&cl.world);
 710 }
 711
 712 void CL_VM_CB_EndIncreaseEdicts(void)
 713 {
 714         int i;
 715         prvm_edict_t *ent;
 716
 717         // link every entity except world
 718         for (i = 1, ent = prog->edicts;i < prog->num_edicts;i++, ent++)
 719                 if (!ent->priv.server->free)
 720                         CL_LinkEdict(ent);
 721 }
 722
 723 void CL_VM_CB_InitEdict(prvm_edict_t *e)
 724 {
 725         int edictnum = PRVM_NUM_FOR_EDICT(e);
 726         entity_render_t *entrender;
 727         CL_ExpandCSQCRenderEntities(edictnum);
 728         entrender = cl.csqcrenderentities + edictnum;
 729         e->priv.server->move = false; // don't move on first frame
 730         memset(entrender, 0, sizeof(*entrender));
 731         entrender->shadertime = cl.time;
 732 }
 733
 734 extern void R_DecalSystem_Reset(decalsystem_t *decalsystem);
 735
 736 void CL_VM_CB_FreeEdict(prvm_edict_t *ed)
 737 {
 738         entity_render_t *entrender = cl.csqcrenderentities + PRVM_NUM_FOR_EDICT(ed);
 739         R_DecalSystem_Reset(&entrender->decalsystem);
 740         memset(entrender, 0, sizeof(*entrender));
 741         World_UnlinkEdict(ed);
 742         memset(ed->fields.client, 0, sizeof(*ed->fields.client));
 743         VM_RemoveEdictSkeleton(ed);
 744         World_Physics_RemoveFromEntity(&cl.world, ed);
 745         World_Physics_RemoveJointFromEntity(&cl.world, ed);
 746 }
 747
 748 void CL_VM_CB_CountEdicts(void)
 749 {
 750         int             i;
 751         prvm_edict_t    *ent;
 752         int             active = 0, models = 0, solid = 0;
 753
 754         for (i=0 ; i<prog->num_edicts ; i++)
 755         {
 756                 ent = PRVM_EDICT_NUM(i);
 757                 if (ent->priv.server->free)
 758                         continue;
 759                 active++;
 760                 if (ent->fields.client->solid)
 761                         solid++;
 762                 if (ent->fields.client->model)
 763                         models++;
 764         }
 765
 766         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
 767         Con_Printf("active    :%3i\n", active);
 768         Con_Printf("view      :%3i\n", models);
 769         Con_Printf("touch     :%3i\n", solid);
 770 }
 771
 772 qboolean CL_VM_CB_LoadEdict(prvm_edict_t *ent)
 773 {
 774         return true;
 775 }
 776
 777 void Cmd_ClearCsqcFuncs (void);
 778
 779 // returns true if the packet is valid, false if end of file is reached
 780 // used for dumping the CSQC download into demo files
 781 qboolean MakeDownloadPacket(const char *filename, unsigned char *data, size_t len, int crc, int cnt, sizebuf_t *buf, int protocol)
 782 {
 783         int packetsize = buf->maxsize - 7; // byte short long
 784         int npackets = (len + packetsize - 1) / (packetsize);
 785
 786         if(protocol == PROTOCOL_QUAKEWORLD)
 787                 return false; // CSQC can't run in QW anyway
 788
 789         SZ_Clear(buf);
 790         if(cnt == 0)
 791         {
 792                 MSG_WriteByte(buf, svc_stufftext);
 793                 MSG_WriteString(buf, va("\ncl_downloadbegin %lu %s\n", (unsigned long)len, filename));
 794                 return true;
 795         }
 796         else if(cnt >= 1 && cnt <= npackets)
 797         {
 798                 unsigned long thispacketoffset = (cnt - 1) * packetsize;
 799                 int thispacketsize = len - thispacketoffset;
 800                 if(thispacketsize > packetsize)
 801                         thispacketsize = packetsize;
 802
 803                 MSG_WriteByte(buf, svc_downloaddata);
 804                 MSG_WriteLong(buf, thispacketoffset);
 805                 MSG_WriteShort(buf, thispacketsize);
 806                 SZ_Write(buf, data + thispacketoffset, thispacketsize);
 807
 808                 return true;
 809         }
 810         else if(cnt == npackets + 1)
 811         {
 812                 MSG_WriteByte(buf, svc_stufftext);
 813                 MSG_WriteString(buf, va("\ncl_downloadfinished %lu %d\n", (unsigned long)len, crc));
 814                 return true;
 815         }
 816         return false;
 817 }
 818
 819 void CL_VM_Init (void)
 820 {
 821         const char* csprogsfn;
 822         unsigned char *csprogsdata;
 823         fs_offset_t csprogsdatasize;
 824         int csprogsdatacrc, requiredcrc;
 825         int requiredsize;
 826         prvm_eval_t *val;
 827
 828         // reset csqc_progcrc after reading it, so that changing servers doesn't
 829         // expect csqc on the next server
 830         requiredcrc = csqc_progcrc.integer;
 831         requiredsize = csqc_progsize.integer;
 832         Cvar_SetValueQuick(&csqc_progcrc, -1);
 833         Cvar_SetValueQuick(&csqc_progsize, -1);
 834
 835         // if the server is not requesting a csprogs, then we're done here
 836         if (requiredcrc < 0)
 837                 return;
 838
 839         // see if the requested csprogs.dat file matches the requested crc
 840         csprogsdatacrc = -1;
 841         csprogsfn = va("dlcache/%s.%i.%i", csqc_progname.string, requiredsize, requiredcrc);
 842         csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
 843         if (!csprogsdata)
 844         {
 845                 csprogsfn = csqc_progname.string;
 846                 csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
 847         }
 848         if (csprogsdata)
 849         {
 850                 csprogsdatacrc = CRC_Block(csprogsdata, (size_t)csprogsdatasize);
 851                 if (csprogsdatacrc != requiredcrc || csprogsdatasize != requiredsize)
 852                 {
 853                         if (cls.demoplayback)
 854                         {
 855                                 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);
 856                                 // Mem_Free(csprogsdata);
 857                                 // return;
 858                                 // We WANT to continue here, and play the demo with different csprogs!
 859                                 // After all, this is just a warning. Sure things may go wrong from here.
 860                         }
 861                         else
 862                         {
 863                                 Mem_Free(csprogsdata);
 864                                 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);
 865                                 CL_Disconnect();
 866                                 return;
 867                         }
 868                 }
 869         }
 870         else
 871         {
 872                 if (requiredcrc >= 0)
 873                 {
 874                         if (cls.demoplayback)
 875                                 Con_Printf("CL_VM_Init: demo requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 876                         else
 877                                 Con_Printf("CL_VM_Init: server requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 878                         CL_Disconnect();
 879                 }
 880                 return;
 881         }
 882
 883         PRVM_Begin;
 884         PRVM_InitProg(PRVM_CLIENTPROG);
 885
 886         // allocate the mempools
 887         prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
 888         prog->headercrc = CL_PROGHEADER_CRC;
 889         prog->edictprivate_size = 0; // no private struct used
 890         prog->name = CL_NAME;
 891         prog->num_edicts = 1;
 892         prog->max_edicts = 512;
 893         prog->limit_edicts = CL_MAX_EDICTS;
 894         prog->reserved_edicts = 0;
 895         prog->edictprivate_size = sizeof(edict_engineprivate_t);
 896         // TODO: add a shared extension string #define and add real support for csqc extension strings [12/5/2007 Black]
 897         prog->extensionstring = vm_sv_extensions;
 898         prog->builtins = vm_cl_builtins;
 899         prog->numbuiltins = vm_cl_numbuiltins;
 900         prog->begin_increase_edicts = CL_VM_CB_BeginIncreaseEdicts;
 901         prog->end_increase_edicts = CL_VM_CB_EndIncreaseEdicts;
 902         prog->init_edict = CL_VM_CB_InitEdict;
 903         prog->free_edict = CL_VM_CB_FreeEdict;
 904         prog->count_edicts = CL_VM_CB_CountEdicts;
 905         prog->load_edict = CL_VM_CB_LoadEdict;
 906         prog->init_cmd = VM_CL_Cmd_Init;
 907         prog->reset_cmd = VM_CL_Cmd_Reset;
 908         prog->error_cmd = CL_VM_Error;
 909         prog->ExecuteProgram = CLVM_ExecuteProgram;
 910
 911         PRVM_LoadProgs(csprogsfn, cl_numrequiredfunc, cl_required_func, 0, NULL, 0, NULL);
 912
 913         if (!prog->loaded)
 914         {
 915                 CL_VM_Error("CSQC %s ^2failed to load\n", csprogsfn);
 916                 if(!sv.active)
 917                         CL_Disconnect();
 918                 Mem_Free(csprogsdata);
 919                 return;
 920         }
 921
 922         Con_DPrintf("CSQC %s ^5loaded (crc=%i, size=%i)\n", csprogsfn, csprogsdatacrc, (int)csprogsdatasize);
 923
 924         if(cls.demorecording)
 925         {
 926                 if(cls.demo_lastcsprogssize != csprogsdatasize || cls.demo_lastcsprogscrc != csprogsdatacrc)
 927                 {
 928                         int i;
 929                         static char buf[NET_MAXMESSAGE];
 930                         sizebuf_t sb;
 931                         unsigned char *demobuf; fs_offset_t demofilesize;
 932
 933                         sb.data = (unsigned char *) buf;
 934                         sb.maxsize = sizeof(buf);
 935                         i = 0;
 936
 937                         CL_CutDemo(&demobuf, &demofilesize);
 938                         while(MakeDownloadPacket(csqc_progname.string, csprogsdata, (size_t)csprogsdatasize, csprogsdatacrc, i++, &sb, cls.protocol))
 939                                 CL_WriteDemoMessage(&sb);
 940                         CL_PasteDemo(&demobuf, &demofilesize);
 941
 942                         cls.demo_lastcsprogssize = csprogsdatasize;
 943                         cls.demo_lastcsprogscrc = csprogsdatacrc;
 944                 }
 945         }
 946         Mem_Free(csprogsdata);
 947
 948         // check if OP_STATE animation is possible in this dat file
 949         if (prog->fieldoffsets.nextthink >= 0 && prog->fieldoffsets.frame >= 0 && prog->fieldoffsets.think >= 0 && prog->globaloffsets.self >= 0)
 950                 prog->flag |= PRVM_OP_STATE;
 951
 952         // set time
 953         prog->globals.client->time = cl.time;
 954         prog->globals.client->self = 0;
 955
 956         prog->globals.client->mapname = PRVM_SetEngineString(cl.worldname);
 957         prog->globals.client->player_localentnum = cl.playerentity;
 958
 959         // set map description (use world entity 0)
 960         val = PRVM_EDICTFIELDVALUE(prog->edicts, prog->fieldoffsets.message);
 961         if(val)
 962                 val->string = PRVM_SetEngineString(cl.worldmessage);
 963         VectorCopy(cl.world.mins, prog->edicts->fields.client->mins);
 964         VectorCopy(cl.world.maxs, prog->edicts->fields.client->maxs);
 965
 966         // call the prog init
 967         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Init, "QC function CSQC_Init is missing");
 968
 969         PRVM_End;
 970         cl.csqc_loaded = true;
 971
 972         cl.csqc_vidvars.drawcrosshair = false;
 973         cl.csqc_vidvars.drawenginesbar = false;
 974
 975         // Update Coop and Deathmatch Globals (at this point the client knows them from ServerInfo)
 976         CL_VM_UpdateCoopDeathmatchGlobals(cl.gametype);
 977 }
 978
 979 void CL_VM_ShutDown (void)
 980 {
 981         Cmd_ClearCsqcFuncs();
 982         //Cvar_SetValueQuick(&csqc_progcrc, -1);
 983         //Cvar_SetValueQuick(&csqc_progsize, -1);
 984         if(!cl.csqc_loaded)
 985                 return;
 986         CSQC_BEGIN
 987                 prog->globals.client->time = cl.time;
 988                 prog->globals.client->self = 0;
 989                 if (prog->funcoffsets.CSQC_Shutdown)
 990                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Shutdown, "QC function CSQC_Shutdown is missing");
 991                 PRVM_ResetProg();
 992         CSQC_END
 993         Con_DPrint("CSQC ^1unloaded\n");
 994         cl.csqc_loaded = false;
 995 }
 996
 997 qboolean CL_VM_GetEntitySoundOrigin(int entnum, vec3_t out)
 998 {
 999         prvm_edict_t *ed;
1000         dp_model_t *mod;
1001         matrix4x4_t matrix;
1002         qboolean r = 0;
1003
1004         CSQC_BEGIN;
1005
1006         // FIXME consider attachments here!
1007
1008         ed = PRVM_EDICT_NUM(entnum - MAX_EDICTS);
1009
1010         if(!ed->priv.required->free)
1011         {
1012                 mod = CL_GetModelFromEdict(ed);
1013                 VectorCopy(ed->fields.client->origin, out);
1014                 if(CL_GetTagMatrix (&matrix, ed, 0) == 0)
1015                         Matrix4x4_OriginFromMatrix(&matrix, out);
1016                 if (mod && mod->soundfromcenter)
1017                         VectorMAMAM(1.0f, out, 0.5f, mod->normalmins, 0.5f, mod->normalmaxs, out);
1018                 r = 1;
1019         }
1020
1021         CSQC_END;
1022
1023         return r;
1024 }
1025
1026 qboolean CL_VM_TransformView(int entnum, matrix4x4_t *viewmatrix, mplane_t *clipplane, vec3_t visorigin)
1027 {
1028         qboolean ret = false;
1029         prvm_edict_t *ed;
1030         prvm_eval_t *val, *valforward, *valright, *valup, *valendpos;
1031         vec3_t forward, left, up, origin, ang;
1032         matrix4x4_t mat, matq;
1033
1034         CSQC_BEGIN
1035                 ed = PRVM_EDICT_NUM(entnum);
1036                 // camera:
1037                 //   camera_transform
1038                 if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.camera_transform)) && val->function)
1039                 {
1040                         ret = true;
1041                         if(viewmatrix || clipplane || visorigin)
1042                         {
1043                                 valforward = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.v_forward);
1044                                 valright = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.v_right);
1045                                 valup = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.v_up);
1046                                 valendpos = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_endpos);
1047                                 if(valforward && valright && valup && valendpos)
1048                                 {
1049                                         Matrix4x4_ToVectors(viewmatrix, forward, left, up, origin);
1050                                         AnglesFromVectors(ang, forward, up, false);
1051                                         prog->globals.client->time = cl.time;
1052                                         prog->globals.client->self = entnum;
1053                                         VectorCopy(origin, PRVM_G_VECTOR(OFS_PARM0));
1054                                         VectorCopy(ang, PRVM_G_VECTOR(OFS_PARM1));
1055                                         VectorCopy(forward, valforward->vector);
1056                                         VectorScale(left, -1, valright->vector);
1057                                         VectorCopy(up, valup->vector);
1058                                         VectorCopy(origin, valendpos->vector);
1059                                         PRVM_ExecuteProgram(val->function, "QC function e.camera_transform is missing");
1060                                         VectorCopy(PRVM_G_VECTOR(OFS_RETURN), origin);
1061                                         VectorCopy(valforward->vector, forward);
1062                                         VectorScale(valright->vector, -1, left);
1063                                         VectorCopy(valup->vector, up);
1064                                         VectorCopy(valendpos->vector, visorigin);
1065                                         Matrix4x4_Invert_Full(&mat, viewmatrix);
1066                                         Matrix4x4_FromVectors(viewmatrix, forward, left, up, origin);
1067                                         Matrix4x4_Concat(&matq, viewmatrix, &mat);
1068                                         Matrix4x4_TransformPositivePlane(&matq, clipplane->normal[0], clipplane->normal[1], clipplane->normal[2], clipplane->dist, &clipplane->normal[0]);
1069                                 }
1070                         }
1071                 }
1072         CSQC_END
1073
1074         return ret;
1075 }