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
   9 //============================================================================
  10 // Client prog handling
  11 //[515]: omg !!! optimize it ! a lot of hacks here and there also :P
  12
  13 #define CSQC_RETURNVAL  prog->globals.generic[OFS_RETURN]
  14 #define CSQC_BEGIN              csqc_tmpprog=prog;prog=0;PRVM_SetProg(PRVM_CLIENTPROG);
  15 #define CSQC_END                prog=csqc_tmpprog;
  16 static prvm_prog_t *csqc_tmpprog;
  17
  18 //[515]: these are required funcs
  19 static char *cl_required_func[] =
  20 {
  21         "CSQC_Init",
  22         "CSQC_InputEvent",
  23         "CSQC_UpdateView",
  24         "CSQC_ConsoleCommand",
  25 };
  26
  27 static int cl_numrequiredfunc = sizeof(cl_required_func) / sizeof(char*);
  28
  29 void CL_VM_Error (const char *format, ...) DP_FUNC_PRINTF(1);
  30 void CL_VM_Error (const char *format, ...)      //[515]: hope it will be never executed =)
  31 {
  32         char errorstring[4096];
  33         va_list argptr;
  34
  35         va_start (argptr, format);
  36         dpvsnprintf (errorstring, sizeof(errorstring), format, argptr);
  37         va_end (argptr);
  38 //      Con_Printf( "CL_VM_Error: %s\n", errorstring );
  39
  40         PRVM_Crash();
  41         cl.csqc_loaded = false;
  42
  43         Cvar_SetValueQuick(&csqc_progcrc, -1);
  44         Cvar_SetValueQuick(&csqc_progsize, -1);
  45
  46 //      Host_AbortCurrentFrame();       //[515]: hmmm... if server says it needs csqc then client MUST disconnect
  47         Host_Error("CL_VM_Error: %s", errorstring);
  48 }
  49 void CL_VM_UpdateDmgGlobals (int dmg_take, int dmg_save, vec3_t dmg_origin)
  50 {
  51         prvm_eval_t *val;
  52         if(cl.csqc_loaded)
  53         {
  54                 CSQC_BEGIN
  55                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_take);
  56                 if(val)
  57                         val->_float = dmg_take;
  58                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_save);
  59                 if(val)
  60                         val->_float = dmg_save;
  61                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_origin);
  62                 if(val)
  63                 {
  64                         val->vector[0] = dmg_origin[0];
  65                         val->vector[1] = dmg_origin[1];
  66                         val->vector[2] = dmg_origin[2];
  67                 }
  68                 CSQC_END
  69         }
  70 }
  71 //[515]: set globals before calling R_UpdateView, WEIRD CRAP
  72 static void CSQC_SetGlobals (void)
  73 {
  74         prvm_eval_t *val;
  75         CSQC_BEGIN
  76                 prog->globals.client->time = cl.time;
  77                 prog->globals.client->frametime = max(0, cl.time - cl.oldtime);
  78                 prog->globals.client->servercommandframe = cls.servermovesequence;
  79                 prog->globals.client->clientcommandframe = cl.movecmd[0].sequence;
  80                 VectorCopy(cl.viewangles, prog->globals.client->input_angles);
  81                 VectorCopy(cl.viewangles, cl.csqc_angles);
  82                 // // FIXME: this actually belongs into getinputstate().. [12/17/2007 Black]
  83                 prog->globals.client->input_buttons = cl.movecmd[0].buttons;
  84                 VectorSet(prog->globals.client->input_movevalues, cl.movecmd[0].forwardmove, cl.movecmd[0].sidemove, cl.movecmd[0].upmove);
  85                 //VectorCopy(cl.movement_origin, cl.csqc_origin);
  86                 Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, cl.csqc_origin);
  87
  88                 // LordHavoc: Spike says not to do this, but without pmove_org the
  89                 // CSQC is useless as it can't alter the view origin without
  90                 // completely replacing it
  91                 VectorCopy(cl.csqc_origin, prog->globals.client->pmove_org);
  92                 VectorCopy(cl.velocity, prog->globals.client->pmove_vel);
  93
  94                 if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.view_angles)))
  95                         VectorCopy(cl.viewangles, val->vector);
  96                 prog->globals.client->maxclients = cl.maxclients;
  97         CSQC_END
  98 }
  99
 100 void CSQC_Predraw (prvm_edict_t *ed)
 101 {
 102         int b;
 103         if(!ed->fields.client->predraw)
 104                 return;
 105         b = prog->globals.client->self;
 106         prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 107         PRVM_ExecuteProgram(ed->fields.client->predraw, "CSQC_Predraw: NULL function\n");
 108         prog->globals.client->self = b;
 109 }
 110
 111 void CSQC_Think (prvm_edict_t *ed)
 112 {
 113         int b;
 114         if(ed->fields.client->think)
 115         if(ed->fields.client->nextthink && ed->fields.client->nextthink <= prog->globals.client->time)
 116         {
 117                 ed->fields.client->nextthink = 0;
 118                 b = prog->globals.client->self;
 119                 prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 120                 PRVM_ExecuteProgram(ed->fields.client->think, "CSQC_Think: NULL function\n");
 121                 prog->globals.client->self = b;
 122         }
 123 }
 124
 125 extern cvar_t cl_noplayershadow;
 126 qboolean CSQC_AddRenderEdict(prvm_edict_t *ed)
 127 {
 128         int renderflags;
 129         int c;
 130         float scale;
 131         prvm_eval_t *val;
 132         entity_render_t *entrender;
 133         dp_model_t *model;
 134         matrix4x4_t tagmatrix, matrix2;
 135
 136         model = CL_GetModelFromEdict(ed);
 137         if (!model)
 138                 return false;
 139
 140         entrender = CL_NewTempEntity();
 141         if (!entrender)
 142                 return false;
 143
 144         entrender->model = model;
 145         entrender->skinnum = (int)ed->fields.client->skin;
 146         entrender->effects |= entrender->model->effects;
 147         scale = 1;
 148         renderflags = 0;
 149         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.renderflags)) && val->_float)     renderflags = (int)val->_float;
 150         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.alpha)) && val->_float)           entrender->alpha = val->_float;
 151         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.scale)) && val->_float)           entrender->scale = scale = val->_float;
 152         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.colormod)) && VectorLength2(val->vector)) VectorCopy(val->vector, entrender->colormod);
 153         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.effects)) && val->_float) entrender->effects |= (int)val->_float;
 154         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_entity)) && val->edict)
 155         {
 156                 int tagentity;
 157                 int tagindex = 0;
 158                 tagentity = val->edict;
 159                 if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_index)) && val->_float)
 160                         tagindex = (int)val->_float;
 161                 CL_GetTagMatrix (&tagmatrix, PRVM_PROG_TO_EDICT(tagentity), tagindex);
 162         }
 163         else
 164                 Matrix4x4_CreateIdentity(&tagmatrix);
 165
 166         if (renderflags & RF_USEAXIS)
 167         {
 168                 vec3_t left;
 169                 VectorNegate(prog->globals.client->v_right, left);
 170                 Matrix4x4_FromVectors(&matrix2, prog->globals.client->v_forward, left, prog->globals.client->v_up, ed->fields.client->origin);
 171                 Matrix4x4_Scale(&matrix2, scale, 1);
 172         }
 173         else
 174         {
 175                 vec3_t angles;
 176                 VectorCopy(ed->fields.client->angles, angles);
 177                 // if model is alias, reverse pitch direction
 178                 if (entrender->model->type == mod_alias)
 179                         angles[0] = -angles[0];
 180
 181                 // set up the render matrix
 182                 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);
 183         }
 184
 185         // set up the animation data
 186         // self.frame is the interpolation target (new frame)
 187         // self.frame1time is the animation base time for the interpolation target
 188         // self.frame2 is the interpolation start (previous frame)
 189         // self.frame2time is the animation base time for the interpolation start
 190         entrender->frame1 = entrender->frame2 = ed->fields.client->frame;
 191         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2))) entrender->frame2 = val->_float;
 192         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame1time))) entrender->frame2time = val->_float;
 193         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2time))) entrender->frame1time = val->_float;
 194         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac))) entrender->framelerp = val->_float;
 195
 196         // concat the matrices to make the entity relative to its tag
 197         Matrix4x4_Concat(&entrender->matrix, &tagmatrix, &matrix2);
 198
 199         if(renderflags)
 200         {
 201                 if(renderflags & RF_VIEWMODEL)  entrender->flags |= RENDER_VIEWMODEL;
 202                 if(renderflags & RF_EXTERNALMODEL)entrender->flags |= RENDER_EXTERIORMODEL;
 203                 if(renderflags & RF_DEPTHHACK)  entrender->effects |= EF_NODEPTHTEST;
 204                 if(renderflags & RF_ADDITIVE)           entrender->effects |= EF_ADDITIVE;
 205         }
 206
 207         c = (int)ed->fields.client->colormap;
 208         if (c <= 0)
 209                 CL_SetEntityColormapColors(entrender, -1);
 210         else if (c <= cl.maxclients && cl.scores != NULL)
 211                 CL_SetEntityColormapColors(entrender, cl.scores[c-1].colors);
 212         else
 213                 CL_SetEntityColormapColors(entrender, c);
 214
 215         entrender->flags &= ~(RENDER_SHADOW | RENDER_LIGHT | RENDER_NOSELFSHADOW);
 216         // either fullbright or lit
 217         if (!(entrender->effects & EF_FULLBRIGHT) && !r_fullbright.integer)
 218                 entrender->flags |= RENDER_LIGHT;
 219         // hide player shadow during intermission or nehahra movie
 220         if (!(entrender->effects & (EF_NOSHADOW | EF_ADDITIVE | EF_NODEPTHTEST))
 221          &&  (entrender->alpha >= 1)
 222          && !(entrender->flags & RENDER_VIEWMODEL)
 223          && (!(entrender->flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 224                 entrender->flags |= RENDER_SHADOW;
 225         if (entrender->flags & RENDER_VIEWMODEL)
 226                 entrender->flags |= RENDER_NOSELFSHADOW;
 227
 228         // make the other useful stuff
 229         CL_UpdateRenderEntity(entrender);
 230
 231         return true;
 232 }
 233
 234 qboolean CL_VM_InputEvent (qboolean down, int key, int ascii)
 235 {
 236         qboolean r;
 237
 238         if(!cl.csqc_loaded)
 239                 return false;
 240
 241         CSQC_BEGIN
 242                 if (!prog->funcoffsets.CSQC_InputEvent)
 243                         r = false;
 244                 else
 245                 {
 246                         prog->globals.client->time = cl.time;
 247                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 248                         PRVM_G_FLOAT(OFS_PARM0) = !down; // 0 is down, 1 is up
 249                         PRVM_G_FLOAT(OFS_PARM1) = key;
 250                         PRVM_G_FLOAT(OFS_PARM2) = ascii;
 251                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_InputEvent, "QC function CSQC_InputEvent is missing");
 252                         r = CSQC_RETURNVAL;
 253                 }
 254         CSQC_END
 255         return r;
 256 }
 257
 258 qboolean CL_VM_UpdateView (void)
 259 {
 260         vec3_t emptyvector;
 261         emptyvector[0] = 0;
 262         emptyvector[1] = 0;
 263         emptyvector[2] = 0;
 264 //      vec3_t oldangles;
 265         if(!cl.csqc_loaded)
 266                 return false;
 267         CSQC_BEGIN
 268                 //VectorCopy(cl.viewangles, oldangles);
 269                 prog->globals.client->time = cl.time;
 270                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 271                 CSQC_SetGlobals();
 272                 // clear renderable entity and light lists to prevent crashes if the
 273                 // CSQC_UpdateView function does not call R_ClearScene as it should
 274                 r_refdef.scene.numentities = 0;
 275                 r_refdef.scene.numlights = 0;
 276                 // pass in width and height as parameters (EXT_CSQC_1)
 277                 PRVM_G_FLOAT(OFS_PARM0) = vid.width;
 278                 PRVM_G_FLOAT(OFS_PARM1) = vid.height;
 279                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_UpdateView, "QC function CSQC_UpdateView is missing");
 280                 //VectorCopy(oldangles, cl.viewangles);
 281                 // Dresk : Reset Dmg Globals Here
 282                 CL_VM_UpdateDmgGlobals(0, 0, emptyvector);
 283         CSQC_END
 284         return true;
 285 }
 286
 287 extern sizebuf_t vm_tempstringsbuf;
 288 qboolean CL_VM_ConsoleCommand (const char *cmd)
 289 {
 290         int restorevm_tempstringsbuf_cursize;
 291         qboolean r = false;
 292         if(!cl.csqc_loaded)
 293                 return false;
 294         CSQC_BEGIN
 295         if (prog->funcoffsets.CSQC_ConsoleCommand)
 296         {
 297                 prog->globals.client->time = cl.time;
 298                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 299                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 300                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(cmd);
 301                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_ConsoleCommand, "QC function CSQC_ConsoleCommand is missing");
 302                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 303                 r = CSQC_RETURNVAL;
 304         }
 305         CSQC_END
 306         return r;
 307 }
 308
 309 qboolean CL_VM_Parse_TempEntity (void)
 310 {
 311         int                     t;
 312         qboolean        r = false;
 313         if(!cl.csqc_loaded)
 314                 return false;
 315         CSQC_BEGIN
 316         if(prog->funcoffsets.CSQC_Parse_TempEntity)
 317         {
 318                 t = msg_readcount;
 319                 prog->globals.client->time = cl.time;
 320                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 321                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_TempEntity, "QC function CSQC_Parse_TempEntity is missing");
 322                 r = CSQC_RETURNVAL;
 323                 if(!r)
 324                 {
 325                         msg_readcount = t;
 326                         msg_badread = false;
 327                 }
 328         }
 329         CSQC_END
 330         return r;
 331 }
 332
 333 void CL_VM_Parse_StuffCmd (const char *msg)
 334 {
 335         int restorevm_tempstringsbuf_cursize;
 336         if(msg[0] == 'c')
 337         if(msg[1] == 's')
 338         if(msg[2] == 'q')
 339         if(msg[3] == 'c')
 340         {
 341                 // if this is setting a csqc variable, deprotect csqc_progcrc
 342                 // temporarily so that it can be set by the cvar command,
 343                 // and then reprotect it afterwards
 344                 int crcflags = csqc_progcrc.flags;
 345                 int sizeflags = csqc_progcrc.flags;
 346                 csqc_progcrc.flags &= ~CVAR_READONLY;
 347                 csqc_progsize.flags &= ~CVAR_READONLY;
 348                 Cmd_ExecuteString (msg, src_command);
 349                 csqc_progcrc.flags = crcflags;
 350                 csqc_progsize.flags = sizeflags;
 351                 return;
 352         }
 353
 354         if(cls.demoplayback)
 355         if(!strncmp(msg, "curl --clear_autodownload\ncurl --pak --forthismap --as ", 55))
 356         {
 357                 // special handling for map download commands
 358                 // run these commands IMMEDIATELY, instead of waiting for a client frame
 359                 // that way, there is no black screen when playing back demos
 360                 // I know this is a really ugly hack, but I can't think of any better way
 361                 // FIXME find the actual CAUSE of this, and make demo playback WAIT
 362                 // until all maps are loaded, then remove this hack
 363
 364                 char buf[MAX_INPUTLINE];
 365                 const char *p, *q;
 366                 size_t l;
 367
 368                 p = msg;
 369
 370                 for(;;)
 371                 {
 372                         q = strchr(p, '\n');
 373                         if(q)
 374                                 l = q - p;
 375                         else
 376                                 l = strlen(p);
 377                         if(l > sizeof(buf) - 1)
 378                                 l = sizeof(buf) - 1;
 379                         strlcpy(buf, p, l + 1); // strlcpy needs a + 1 as it includes the newline!
 380
 381                         Cmd_ExecuteString(buf, src_command);
 382
 383                         p += l;
 384                         if(*p == '\n')
 385                                 ++p; // skip the newline and continue
 386                         else
 387                                 break; // end of string or overflow
 388                 }
 389                 Cmd_ExecuteString("curl --clear_autodownload", src_command); // don't inhibit CSQC loading
 390                 return;
 391         }
 392
 393         if(!cl.csqc_loaded)
 394         {
 395                 Cbuf_AddText(msg);
 396                 return;
 397         }
 398         CSQC_BEGIN
 399         if(prog->funcoffsets.CSQC_Parse_StuffCmd)
 400         {
 401                 prog->globals.client->time = cl.time;
 402                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 403                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 404                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 405                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_StuffCmd, "QC function CSQC_Parse_StuffCmd is missing");
 406                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 407         }
 408         else
 409                 Cbuf_AddText(msg);
 410         CSQC_END
 411 }
 412
 413 static void CL_VM_Parse_Print (const char *msg)
 414 {
 415         int restorevm_tempstringsbuf_cursize;
 416         prog->globals.client->time = cl.time;
 417         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 418         restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 419         PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 420         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_Print, "QC function CSQC_Parse_Print is missing");
 421         vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 422 }
 423
 424 void CSQC_AddPrintText (const char *msg)
 425 {
 426         size_t i;
 427         if(!cl.csqc_loaded)
 428         {
 429                 Con_Print(msg);
 430                 return;
 431         }
 432         CSQC_BEGIN
 433         if(prog->funcoffsets.CSQC_Parse_Print)
 434         {
 435                 // FIXME: is this bugged?
 436                 i = strlen(msg)-1;
 437                 if(msg[i] != '\n' && msg[i] != '\r')
 438                 {
 439                         if(strlen(cl.csqc_printtextbuf)+i >= MAX_INPUTLINE)
 440                         {
 441                                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 442                                 cl.csqc_printtextbuf[0] = 0;
 443                         }
 444                         else
 445                                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 446                         return;
 447                 }
 448                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 449                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 450                 cl.csqc_printtextbuf[0] = 0;
 451         }
 452         else
 453                 Con_Print(msg);
 454         CSQC_END
 455 }
 456
 457 void CL_VM_Parse_CenterPrint (const char *msg)
 458 {
 459         int restorevm_tempstringsbuf_cursize;
 460         if(!cl.csqc_loaded)
 461         {
 462                 SCR_CenterPrint(msg);
 463                 return;
 464         }
 465         CSQC_BEGIN
 466         if(prog->funcoffsets.CSQC_Parse_CenterPrint)
 467         {
 468                 prog->globals.client->time = cl.time;
 469                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 470                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 471                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 472                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_CenterPrint, "QC function CSQC_Parse_CenterPrint is missing");
 473                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 474         }
 475         else
 476                 SCR_CenterPrint(msg);
 477         CSQC_END
 478 }
 479
 480 void CL_VM_UpdateIntermissionState (int intermission)
 481 {
 482         prvm_eval_t *val;
 483         if(cl.csqc_loaded)
 484         {
 485                 CSQC_BEGIN
 486                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.intermission);
 487                 if(val)
 488                         val->_float = intermission;
 489                 CSQC_END
 490         }
 491 }
 492 void CL_VM_UpdateShowingScoresState (int showingscores)
 493 {
 494         prvm_eval_t *val;
 495         if(cl.csqc_loaded)
 496         {
 497                 CSQC_BEGIN
 498                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.sb_showscores);
 499                 if(val)
 500                         val->_float = showingscores;
 501                 CSQC_END
 502         }
 503 }
 504 qboolean CL_VM_Event_Sound(int sound_num, int volume, int channel, float attenuation, int ent, vec3_t pos)
 505 {
 506         qboolean r = false;
 507         if(cl.csqc_loaded)
 508         {
 509                 CSQC_BEGIN
 510                 if(prog->funcoffsets.CSQC_Event_Sound)
 511                 {
 512                         prog->globals.client->time = cl.time;
 513                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 514                         PRVM_G_FLOAT(OFS_PARM0) = ent;
 515                         PRVM_G_FLOAT(OFS_PARM1) = channel;
 516                         PRVM_G_INT(OFS_PARM2) = PRVM_SetTempString(cl.sound_name[sound_num] );
 517                         PRVM_G_FLOAT(OFS_PARM3) = volume;
 518                         PRVM_G_FLOAT(OFS_PARM4) = attenuation;
 519                         VectorCopy(pos, PRVM_G_VECTOR(OFS_PARM5) );
 520                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event_Sound, "QC function CSQC_Event_Sound is missing");
 521                         r = CSQC_RETURNVAL;
 522                 }
 523                 CSQC_END
 524         }
 525
 526         return r;
 527 }
 528 void CL_VM_UpdateCoopDeathmatchGlobals (int gametype)
 529 {
 530         // Avoid global names for clean(er) coding
 531         int localcoop;
 532         int localdeathmatch;
 533
 534         prvm_eval_t *val;
 535         if(cl.csqc_loaded)
 536         {
 537                 if(gametype == GAME_COOP)
 538                 {
 539                         localcoop = 1;
 540                         localdeathmatch = 0;
 541                 }
 542                 else
 543                 if(gametype == GAME_DEATHMATCH)
 544                 {
 545                         localcoop = 0;
 546                         localdeathmatch = 1;
 547                 }
 548                 else
 549                 {
 550                         // How did the ServerInfo send an unknown gametype?
 551                         // Better just assign the globals as 0...
 552                         localcoop = 0;
 553                         localdeathmatch = 0;
 554                 }
 555                 CSQC_BEGIN
 556                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.coop);
 557                 if(val)
 558                         val->_float = localcoop;
 559                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.deathmatch);
 560                 if(val)
 561                         val->_float = localdeathmatch;
 562                 CSQC_END
 563         }
 564 }
 565 float CL_VM_Event (float event)         //[515]: needed ? I'd say "YES", but don't know for what :D
 566 {
 567         float r = 0;
 568         if(!cl.csqc_loaded)
 569                 return 0;
 570         CSQC_BEGIN
 571         if(prog->funcoffsets.CSQC_Event)
 572         {
 573                 prog->globals.client->time = cl.time;
 574                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 575                 PRVM_G_FLOAT(OFS_PARM0) = event;
 576                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event, "QC function CSQC_Event is missing");
 577                 r = CSQC_RETURNVAL;
 578         }
 579         CSQC_END
 580         return r;
 581 }
 582
 583 void CSQC_ReadEntities (void)
 584 {
 585         unsigned short entnum, oldself, realentnum;
 586         if(!cl.csqc_loaded)
 587         {
 588                 Host_Error ("CSQC_ReadEntities: CSQC is not loaded");
 589                 return;
 590         }
 591
 592         CSQC_BEGIN
 593                 prog->globals.client->time = cl.time;
 594                 oldself = prog->globals.client->self;
 595                 while(1)
 596                 {
 597                         entnum = MSG_ReadShort();
 598                         if(!entnum || msg_badread)
 599                                 return;
 600                         realentnum = entnum & 0x7FFF;
 601                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum];
 602                         if(entnum & 0x8000)
 603                         {
 604                                 if(prog->globals.client->self)
 605                                 {
 606                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Remove, "QC function CSQC_Ent_Remove is missing");
 607                                         cl.csqc_server2csqcentitynumber[realentnum] = 0;
 608                                 }
 609                                 else
 610                                 {
 611                                         // LordHavoc: removing an entity that is already gone on
 612                                         // the csqc side is possible for legitimate reasons (such
 613                                         // as a repeat of the remove message), so no warning is
 614                                         // needed
 615                                         //Con_Printf("Bad csqc_server2csqcentitynumber map\n"); //[515]: never happens ?
 616                                 }
 617                         }
 618                         else
 619                         {
 620                                 if(!prog->globals.client->self)
 621                                 {
 622                                         if(!prog->funcoffsets.CSQC_Ent_Spawn)
 623                                         {
 624                                                 prvm_edict_t    *ed;
 625                                                 ed = PRVM_ED_Alloc();
 626                                                 ed->fields.client->entnum = realentnum;
 627                                                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT_TO_PROG(ed);
 628                                         }
 629                                         else
 630                                         {
 631                                                 // entity( float entnum ) CSQC_Ent_Spawn;
 632                                                 // the qc function should set entnum, too (this way it also can return world [2/1/2008 Andreas]
 633                                                 PRVM_G_FLOAT(OFS_PARM0) = (float) realentnum;
 634                                                 // make sure no one gets wrong ideas
 635                                                 prog->globals.client->self = 0;
 636                                                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Spawn, "QC function CSQC_Ent_Spawn is missing");
 637                                                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT( PRVM_G_INT( OFS_RETURN ) );
 638                                         }
 639                                         PRVM_G_FLOAT(OFS_PARM0) = 1;
 640                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 641                                 }
 642                                 else {
 643                                         PRVM_G_FLOAT(OFS_PARM0) = 0;
 644                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 645                                 }
 646                         }
 647                 }
 648                 prog->globals.client->self = oldself;
 649         CSQC_END
 650 }
 651
 652 void CL_VM_CB_BeginIncreaseEdicts(void)
 653 {
 654         // links don't survive the transition, so unlink everything
 655         World_UnlinkAll(&cl.world);
 656 }
 657
 658 void CL_VM_CB_EndIncreaseEdicts(void)
 659 {
 660         int i;
 661         prvm_edict_t *ent;
 662
 663         // link every entity except world
 664         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
 665                 if (!ent->priv.server->free)
 666                         CL_LinkEdict(ent);
 667 }
 668
 669 void CL_VM_CB_InitEdict(prvm_edict_t *e)
 670 {
 671         e->priv.server->move = false; // don't move on first frame
 672 }
 673
 674 void CL_VM_CB_FreeEdict(prvm_edict_t *ed)
 675 {
 676         World_UnlinkEdict(ed);
 677         memset(ed->fields.client, 0, sizeof(*ed->fields.client));
 678 }
 679
 680 void CL_VM_CB_CountEdicts(void)
 681 {
 682         int             i;
 683         prvm_edict_t    *ent;
 684         int             active = 0, models = 0, solid = 0;
 685
 686         for (i=0 ; i<prog->num_edicts ; i++)
 687         {
 688                 ent = PRVM_EDICT_NUM(i);
 689                 if (ent->priv.server->free)
 690                         continue;
 691                 active++;
 692                 if (ent->fields.client->solid)
 693                         solid++;
 694                 if (ent->fields.client->model)
 695                         models++;
 696         }
 697
 698         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
 699         Con_Printf("active    :%3i\n", active);
 700         Con_Printf("view      :%3i\n", models);
 701         Con_Printf("touch     :%3i\n", solid);
 702 }
 703
 704 qboolean CL_VM_CB_LoadEdict(prvm_edict_t *ent)
 705 {
 706         return true;
 707 }
 708
 709 void Cmd_ClearCsqcFuncs (void);
 710
 711 // returns true if the packet is valid, false if end of file is reached
 712 // used for dumping the CSQC download into demo files
 713 qboolean MakeDownloadPacket(const char *filename, unsigned char *data, unsigned long len, int crc, int cnt, sizebuf_t *buf, int protocol)
 714 {
 715         int packetsize = buf->maxsize - 7; // byte short long
 716         int npackets = (len + packetsize - 1) / (packetsize);
 717
 718         if(protocol == PROTOCOL_QUAKEWORLD)
 719                 return false; // CSQC can't run in QW anyway
 720
 721         SZ_Clear(buf);
 722         if(cnt == 0)
 723         {
 724                 MSG_WriteByte(buf, svc_stufftext);
 725                 MSG_WriteString(buf, va("\ncl_downloadbegin %lu %s\n", len, filename));
 726                 return true;
 727         }
 728         else if(cnt >= 1 && cnt <= npackets)
 729         {
 730                 unsigned long thispacketoffset = (cnt - 1) * packetsize;
 731                 int thispacketsize = len - thispacketoffset;
 732                 if(thispacketsize > packetsize)
 733                         thispacketsize = packetsize;
 734
 735                 MSG_WriteByte(buf, svc_downloaddata);
 736                 MSG_WriteLong(buf, thispacketoffset);
 737                 MSG_WriteShort(buf, thispacketsize);
 738                 SZ_Write(buf, data + thispacketoffset, thispacketsize);
 739
 740                 return true;
 741         }
 742         else if(cnt == npackets + 1)
 743         {
 744                 MSG_WriteByte(buf, svc_stufftext);
 745                 MSG_WriteString(buf, va("\ncl_downloadfinished %lu %d\n", len, crc));
 746                 return true;
 747         }
 748         return false;
 749 }
 750
 751 void CL_VM_Init (void)
 752 {
 753         const char* csprogsfn;
 754         unsigned char *csprogsdata;
 755         fs_offset_t csprogsdatasize;
 756         int csprogsdatacrc, requiredcrc;
 757         int requiredsize;
 758         prvm_eval_t *val;
 759
 760         // reset csqc_progcrc after reading it, so that changing servers doesn't
 761         // expect csqc on the next server
 762         requiredcrc = csqc_progcrc.integer;
 763         requiredsize = csqc_progsize.integer;
 764         Cvar_SetValueQuick(&csqc_progcrc, -1);
 765         Cvar_SetValueQuick(&csqc_progsize, -1);
 766
 767         // if the server is not requesting a csprogs, then we're done here
 768         if (requiredcrc < 0)
 769                 return;
 770
 771         // see if the requested csprogs.dat file matches the requested crc
 772         csprogsdatacrc = -1;
 773         csprogsfn = va("dlcache/%s.%i.%i", csqc_progname.string, requiredsize, requiredcrc);
 774         csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
 775         if (!csprogsdata)
 776         {
 777                 csprogsfn = csqc_progname.string;
 778                 csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
 779         }
 780         if (csprogsdata)
 781         {
 782                 csprogsdatacrc = CRC_Block(csprogsdata, csprogsdatasize);
 783                 if (csprogsdatacrc != requiredcrc || csprogsdatasize != requiredsize)
 784                 {
 785                         if (cls.demoplayback)
 786                         {
 787                                 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);
 788                                 // Mem_Free(csprogsdata);
 789                                 // return;
 790                                 // We WANT to continue here, and play the demo with different csprogs!
 791                                 // After all, this is just a warning. Sure things may go wrong from here.
 792                         }
 793                         else
 794                         {
 795                                 Mem_Free(csprogsdata);
 796                                 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);
 797                                 CL_Disconnect();
 798                                 return;
 799                         }
 800                 }
 801         }
 802         else
 803         {
 804                 if (requiredcrc >= 0)
 805                 {
 806                         if (cls.demoplayback)
 807                                 Con_Printf("CL_VM_Init: demo requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 808                         else
 809                                 Con_Printf("CL_VM_Init: server requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 810                         CL_Disconnect();
 811                 }
 812                 return;
 813         }
 814
 815         PRVM_Begin;
 816         PRVM_InitProg(PRVM_CLIENTPROG);
 817
 818         // allocate the mempools
 819         prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
 820         prog->headercrc = CL_PROGHEADER_CRC;
 821         prog->edictprivate_size = 0; // no private struct used
 822         prog->name = CL_NAME;
 823         prog->num_edicts = 1;
 824         prog->max_edicts = 512;
 825         prog->limit_edicts = CL_MAX_EDICTS;
 826         prog->reserved_edicts = 0;
 827         prog->edictprivate_size = sizeof(edict_engineprivate_t);
 828         // TODO: add a shared extension string #define and add real support for csqc extension strings [12/5/2007 Black]
 829         prog->extensionstring = vm_sv_extensions;
 830         prog->builtins = vm_cl_builtins;
 831         prog->numbuiltins = vm_cl_numbuiltins;
 832         prog->begin_increase_edicts = CL_VM_CB_BeginIncreaseEdicts;
 833         prog->end_increase_edicts = CL_VM_CB_EndIncreaseEdicts;
 834         prog->init_edict = CL_VM_CB_InitEdict;
 835         prog->free_edict = CL_VM_CB_FreeEdict;
 836         prog->count_edicts = CL_VM_CB_CountEdicts;
 837         prog->load_edict = CL_VM_CB_LoadEdict;
 838         prog->init_cmd = VM_CL_Cmd_Init;
 839         prog->reset_cmd = VM_CL_Cmd_Reset;
 840         prog->error_cmd = CL_VM_Error;
 841
 842         PRVM_LoadProgs(csprogsfn, cl_numrequiredfunc, cl_required_func, 0, NULL, 0, NULL);
 843
 844         if (!prog->loaded)
 845         {
 846                 CL_VM_Error("CSQC %s ^2failed to load\n", csprogsfn);
 847                 if(!sv.active)
 848                         CL_Disconnect();
 849                 Mem_Free(csprogsdata);
 850                 return;
 851         }
 852
 853         Con_Printf("CSQC %s ^5loaded (crc=%i, size=%i)\n", csprogsfn, csprogsdatacrc, (int)csprogsdatasize);
 854
 855         if(cls.demorecording)
 856         {
 857                 if(cls.demo_lastcsprogssize != csprogsdatasize || cls.demo_lastcsprogscrc != csprogsdatacrc)
 858                 {
 859                         int i;
 860                         char buf[NET_MAXMESSAGE];
 861                         sizebuf_t sb;
 862                         unsigned char *demobuf; fs_offset_t demofilesize;
 863
 864                         sb.data = (void *) buf;
 865                         sb.maxsize = sizeof(buf);
 866                         i = 0;
 867
 868                         CL_CutDemo(&demobuf, &demofilesize);
 869                         while(MakeDownloadPacket(csqc_progname.string, csprogsdata, csprogsdatasize, csprogsdatacrc, i++, &sb, cls.protocol))
 870                                 CL_WriteDemoMessage(&sb);
 871                         CL_PasteDemo(&demobuf, &demofilesize);
 872
 873                         cls.demo_lastcsprogssize = csprogsdatasize;
 874                         cls.demo_lastcsprogscrc = csprogsdatacrc;
 875                 }
 876         }
 877         Mem_Free(csprogsdata);
 878
 879         // check if OP_STATE animation is possible in this dat file
 880         if (prog->fieldoffsets.nextthink >= 0 && prog->fieldoffsets.frame >= 0 && prog->fieldoffsets.think >= 0 && prog->globaloffsets.self >= 0)
 881                 prog->flag |= PRVM_OP_STATE;
 882
 883         // set time
 884         prog->globals.client->time = cl.time;
 885         prog->globals.client->self = 0;
 886
 887         prog->globals.client->mapname = cl.worldmodel ? PRVM_SetEngineString(cl.worldmodel->name) : PRVM_SetEngineString("");
 888         prog->globals.client->player_localentnum = cl.playerentity;
 889
 890         // set map description (use world entity 0)
 891         val = PRVM_EDICTFIELDVALUE(prog->edicts, prog->fieldoffsets.message);
 892         if(val)
 893                 val->string = PRVM_SetEngineString(cl.levelname);
 894         VectorCopy(cl.world.mins, prog->edicts->fields.client->mins);
 895         VectorCopy(cl.world.maxs, prog->edicts->fields.client->maxs);
 896
 897         // call the prog init
 898         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Init, "QC function CSQC_Init is missing");
 899
 900         PRVM_End;
 901         cl.csqc_loaded = true;
 902
 903         cl.csqc_vidvars.drawcrosshair = false;
 904         cl.csqc_vidvars.drawenginesbar = false;
 905
 906         // Update Coop and Deathmatch Globals (at this point the client knows them from ServerInfo)
 907         CL_VM_UpdateCoopDeathmatchGlobals(cl.gametype);
 908 }
 909
 910 void CL_VM_ShutDown (void)
 911 {
 912         Cmd_ClearCsqcFuncs();
 913         //Cvar_SetValueQuick(&csqc_progcrc, -1);
 914         //Cvar_SetValueQuick(&csqc_progsize, -1);
 915         if(!cl.csqc_loaded)
 916                 return;
 917         CSQC_BEGIN
 918                 prog->globals.client->time = cl.time;
 919                 prog->globals.client->self = 0;
 920                 if (prog->funcoffsets.CSQC_Shutdown)
 921                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Shutdown, "QC function CSQC_Shutdown is missing");
 922                 PRVM_ResetProg();
 923         CSQC_END
 924         Con_Print("CSQC ^1unloaded\n");
 925         cl.csqc_loaded = false;
 926 }