csprogs.c

   1 #include "quakedef.h"
   2 #include "progsvm.h"
   3 #include "clprogdefs.h"
   4 #include "csprogs.h"
   5 #include "cl_collision.h"
   6
   7 //============================================================================
   8 // Client prog handling
   9 //[515]: omg !!! optimize it ! a lot of hacks here and there also :P
  10
  11 #define CSQC_RETURNVAL  prog->globals.generic[OFS_RETURN]
  12 #define CSQC_BEGIN              csqc_tmpprog=prog;prog=0;PRVM_SetProg(PRVM_CLIENTPROG);
  13 #define CSQC_END                prog=csqc_tmpprog;
  14 static prvm_prog_t *csqc_tmpprog;
  15
  16 //[515]: these are required funcs
  17 static char *cl_required_func[] =
  18 {
  19         "CSQC_Init",
  20         "CSQC_InputEvent",
  21         "CSQC_UpdateView",
  22         "CSQC_ConsoleCommand",
  23 };
  24
  25 static int cl_numrequiredfunc = sizeof(cl_required_func) / sizeof(char*);
  26
  27 void CL_VM_Error (const char *format, ...) DP_FUNC_PRINTF(1);
  28 void CL_VM_Error (const char *format, ...)      //[515]: hope it will be never executed =)
  29 {
  30         char errorstring[4096];
  31         va_list argptr;
  32
  33         va_start (argptr, format);
  34         dpvsnprintf (errorstring, sizeof(errorstring), format, argptr);
  35         va_end (argptr);
  36 //      Con_Printf( "CL_VM_Error: %s\n", errorstring );
  37
  38         PRVM_Crash();
  39         cl.csqc_loaded = false;
  40
  41         Cvar_SetValueQuick(&csqc_progcrc, -1);
  42         Cvar_SetValueQuick(&csqc_progsize, -1);
  43
  44 //      Host_AbortCurrentFrame();       //[515]: hmmm... if server says it needs csqc then client MUST disconnect
  45         Host_Error(va("CL_VM_Error: %s", errorstring));
  46 }
  47
  48 //[515]: set globals before calling R_UpdateView, WEIRD CRAP
  49 static void CSQC_SetGlobals (void)
  50 {
  51         prvm_eval_t *val;
  52         CSQC_BEGIN
  53                 prog->globals.client->time = cl.time;
  54                 prog->globals.client->frametime = max(0, cl.time - cl.oldtime);
  55                 prog->globals.client->servercommandframe = cls.servermovesequence;
  56                 prog->globals.client->clientcommandframe = cl.movecmd[0].sequence;
  57                 VectorCopy(cl.viewangles, prog->globals.client->input_angles);
  58                 VectorCopy(cl.viewangles, cl.csqc_angles);
  59                 prog->globals.client->input_buttons = cl.movecmd[0].buttons;
  60                 VectorSet(prog->globals.client->input_movevalues, cl.movecmd[0].forwardmove, cl.movecmd[0].sidemove, cl.movecmd[0].upmove);
  61                 //VectorCopy(cl.movement_origin, cl.csqc_origin);
  62                 Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, cl.csqc_origin);
  63                 if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.view_angles)))
  64                         VectorCopy(cl.viewangles, val->vector);
  65                 prog->globals.client->maxclients = cl.maxclients;
  66         CSQC_END
  67 }
  68
  69 void CSQC_Predraw (prvm_edict_t *ed)
  70 {
  71         int b;
  72         if(!ed->fields.client->predraw)
  73                 return;
  74         b = prog->globals.client->self;
  75         prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
  76         PRVM_ExecuteProgram(ed->fields.client->predraw, "CSQC_Predraw: NULL function\n");
  77         prog->globals.client->self = b;
  78 }
  79
  80 void CSQC_Think (prvm_edict_t *ed)
  81 {
  82         int b;
  83         if(ed->fields.client->think)
  84         if(ed->fields.client->nextthink && ed->fields.client->nextthink <= prog->globals.client->time)
  85         {
  86                 ed->fields.client->nextthink = 0;
  87                 b = prog->globals.client->self;
  88                 prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
  89                 PRVM_ExecuteProgram(ed->fields.client->think, "CSQC_Think: NULL function\n");
  90                 prog->globals.client->self = b;
  91         }
  92 }
  93
  94 extern cvar_t cl_noplayershadow;
  95 qboolean CSQC_AddRenderEdict(prvm_edict_t *ed)
  96 {
  97         int renderflags;
  98         float scale;
  99         prvm_eval_t *val;
 100         entity_t *e;
 101         model_t *model;
 102         matrix4x4_t tagmatrix, matrix2;
 103
 104         model = CL_GetModelFromEdict(ed);
 105         if (!model)
 106                 return false;
 107
 108         e = CL_NewTempEntity();
 109         if (!e)
 110                 return false;
 111
 112         e->render.model = model;
 113         e->render.colormap = (int)ed->fields.client->colormap;
 114         e->render.skinnum = (int)ed->fields.client->skin;
 115         e->render.effects |= e->render.model->effects;
 116         scale = 1;
 117         renderflags = 0;
 118         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.renderflags)) && val->_float)     renderflags = (int)val->_float;
 119         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.alpha)) && val->_float)           e->render.alpha = val->_float;
 120         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.scale)) && val->_float)           e->render.scale = scale = val->_float;
 121         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.colormod)) && VectorLength2(val->vector)) VectorCopy(val->vector, e->render.colormod);
 122         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.effects)) && val->_float) e->render.effects |= (int)val->_float;
 123         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_entity)) && val->edict)
 124         {
 125                 int tagentity;
 126                 int tagindex = 0;
 127                 tagentity = val->edict;
 128                 if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_index)) && val->_float)
 129                         tagindex = (int)val->_float;
 130                 // FIXME: calculate tag matrix
 131                 Matrix4x4_CreateIdentity(&tagmatrix);
 132         }
 133         else
 134                 Matrix4x4_CreateIdentity(&tagmatrix);
 135
 136         if (renderflags & RF_USEAXIS)
 137         {
 138                 vec3_t left;
 139                 VectorNegate(prog->globals.client->v_right, left);
 140                 Matrix4x4_FromVectors(&matrix2, prog->globals.client->v_forward, left, prog->globals.client->v_up, ed->fields.client->origin);
 141                 Matrix4x4_Scale(&matrix2, scale, 1);
 142         }
 143         else
 144         {
 145                 vec3_t angles;
 146                 VectorCopy(ed->fields.client->angles, angles);
 147                 // if model is alias, reverse pitch direction
 148                 if (e->render.model->type == mod_alias)
 149                         angles[0] = -angles[0];
 150
 151                 // set up the render matrix
 152                 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);
 153         }
 154
 155         // set up the animation data
 156         // self.frame is the interpolation target (new frame)
 157         // self.frame1time is the animation base time for the interpolation target
 158         // self.frame2 is the interpolation start (previous frame)
 159         // self.frame2time is the animation base time for the interpolation start
 160         e->render.frame1 = e->render.frame2 = ed->fields.client->frame;
 161         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2))) e->render.frame2 = val->_float;
 162         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame1time))) e->render.frame2time = val->_float;
 163         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2time))) e->render.frame1time = val->_float;
 164         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac))) e->render.framelerp = val->_float;
 165
 166         // concat the matrices to make the entity relative to its tag
 167         Matrix4x4_Concat(&e->render.matrix, &tagmatrix, &matrix2);
 168         // make the other useful stuff
 169         CL_UpdateRenderEntity(&e->render);
 170
 171         if(renderflags)
 172         {
 173                 if(renderflags & RF_VIEWMODEL)  e->render.flags |= RENDER_VIEWMODEL;
 174                 if(renderflags & RF_EXTERNALMODEL)e->render.flags |= RENDER_EXTERIORMODEL;
 175                 if(renderflags & RF_DEPTHHACK)  e->render.effects |= EF_NODEPTHTEST;
 176                 if(renderflags & RF_ADDITIVE)           e->render.effects |= EF_ADDITIVE;
 177         }
 178
 179         if ((e->render.colormap > 0 && e->render.colormap <= cl.maxclients) || e->render.colormap >= 1024)
 180         {
 181                 int cb;
 182                 unsigned char *cbcolor;
 183                 int palcol;
 184                 if (e->render.colormap >= 1024)
 185                         palcol = (unsigned char)(e->render.colormap-1024);
 186                 else
 187                         palcol = cl.scores[e->render.colormap-1].colors;
 188
 189                 cb = (palcol & 0xF) << 4;cb += (cb >= 128 && cb < 224) ? 4 : 12;
 190                 cbcolor = (unsigned char *) (&palette_complete[cb]);
 191                 e->render.colormap_pantscolor[0] = cbcolor[0] * (1.0f / 255.0f);
 192                 e->render.colormap_pantscolor[1] = cbcolor[1] * (1.0f / 255.0f);
 193                 e->render.colormap_pantscolor[2] = cbcolor[2] * (1.0f / 255.0f);
 194                 cb = (palcol & 0xF0);cb += (cb >= 128 && cb < 224) ? 4 : 12;
 195                 cbcolor = (unsigned char *) (&palette_complete[cb]);
 196                 e->render.colormap_shirtcolor[0] = cbcolor[0] * (1.0f / 255.0f);
 197                 e->render.colormap_shirtcolor[1] = cbcolor[1] * (1.0f / 255.0f);
 198                 e->render.colormap_shirtcolor[2] = cbcolor[2] * (1.0f / 255.0f);
 199         }
 200
 201         // either fullbright or lit
 202         if (!(e->render.effects & EF_FULLBRIGHT) && !r_fullbright.integer)
 203                 e->render.flags |= RENDER_LIGHT;
 204         // hide player shadow during intermission or nehahra movie
 205         if (!(e->render.effects & (EF_NOSHADOW | EF_ADDITIVE | EF_NODEPTHTEST))
 206          &&  (e->render.alpha >= 1)
 207          && !(e->render.flags & RENDER_VIEWMODEL)
 208          && (!(e->render.flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 209                 e->render.flags |= RENDER_SHADOW;
 210         if (e->render.flags & RENDER_VIEWMODEL)
 211                 e->render.flags |= RENDER_NOSELFSHADOW;
 212
 213         return true;
 214 }
 215
 216 qboolean CL_VM_InputEvent (qboolean pressed, int key)
 217 {
 218         qboolean r;
 219         if(!cl.csqc_loaded)
 220                 return false;
 221         CSQC_BEGIN
 222                 if (!prog->funcoffsets.CSQC_InputEvent)
 223                         r = false;
 224                 else
 225                 {
 226                         prog->globals.client->time = cl.time;
 227                         PRVM_G_FLOAT(OFS_PARM0) = pressed;
 228                         PRVM_G_FLOAT(OFS_PARM1) = key;
 229                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_InputEvent, "QC function CSQC_InputEvent is missing");
 230                         r = CSQC_RETURNVAL;
 231                 }
 232         CSQC_END
 233         return r;
 234 }
 235
 236 qboolean CL_VM_UpdateView (void)
 237 {
 238 //      vec3_t oldangles;
 239         if(!cl.csqc_loaded)
 240                 return false;
 241         CSQC_BEGIN
 242                 //VectorCopy(cl.viewangles, oldangles);
 243                 prog->globals.client->time = cl.time;
 244                 CSQC_SetGlobals();
 245                 // clear renderable entity and light lists to prevent crashes if the
 246                 // CSQC_UpdateView function does not call R_ClearScene as it should
 247                 r_refdef.numentities = 0;
 248                 r_refdef.numlights = 0;
 249                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_UpdateView, "QC function CSQC_UpdateView is missing");
 250                 //VectorCopy(oldangles, cl.viewangles);
 251         CSQC_END
 252         return true;
 253 }
 254
 255 extern sizebuf_t vm_tempstringsbuf;
 256 qboolean CL_VM_ConsoleCommand (const char *cmd)
 257 {
 258         int restorevm_tempstringsbuf_cursize;
 259         qboolean r = false;
 260         if(!cl.csqc_loaded)
 261                 return false;
 262         CSQC_BEGIN
 263         if (prog->funcoffsets.CSQC_ConsoleCommand)
 264         {
 265                 prog->globals.client->time = cl.time;
 266                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 267                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(cmd);
 268                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_ConsoleCommand, "QC function CSQC_ConsoleCommand is missing");
 269                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 270                 r = CSQC_RETURNVAL;
 271         }
 272         CSQC_END
 273         return r;
 274 }
 275
 276 qboolean CL_VM_Parse_TempEntity (void)
 277 {
 278         int                     t;
 279         qboolean        r = false;
 280         if(!cl.csqc_loaded)
 281                 return false;
 282         CSQC_BEGIN
 283         if(prog->funcoffsets.CSQC_Parse_TempEntity)
 284         {
 285                 t = msg_readcount;
 286                 prog->globals.client->time = cl.time;
 287                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_TempEntity, "QC function CSQC_Parse_TempEntity is missing");
 288                 r = CSQC_RETURNVAL;
 289                 if(!r)
 290                 {
 291                         msg_readcount = t;
 292                         msg_badread = false;
 293                 }
 294         }
 295         CSQC_END
 296         return r;
 297 }
 298
 299 void CL_VM_Parse_StuffCmd (const char *msg)
 300 {
 301         int restorevm_tempstringsbuf_cursize;
 302         if(msg[0] == 'c')
 303         if(msg[1] == 's')
 304         if(msg[2] == 'q')
 305         if(msg[3] == 'c')
 306         {
 307                 // if this is setting a csqc variable, deprotect csqc_progcrc
 308                 // temporarily so that it can be set by the cvar command,
 309                 // and then reprotect it afterwards
 310                 int crcflags = csqc_progcrc.flags;
 311                 int sizeflags = csqc_progcrc.flags;
 312                 csqc_progcrc.flags &= ~CVAR_READONLY;
 313                 csqc_progsize.flags &= ~CVAR_READONLY;
 314                 Cmd_ExecuteString (msg, src_command);
 315                 csqc_progcrc.flags = crcflags;
 316                 csqc_progsize.flags = sizeflags;
 317                 return;
 318         }
 319         if(!cl.csqc_loaded)
 320         {
 321                 Cbuf_AddText(msg);
 322                 return;
 323         }
 324         CSQC_BEGIN
 325         if(prog->funcoffsets.CSQC_Parse_StuffCmd)
 326         {
 327                 prog->globals.client->time = cl.time;
 328                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 329                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 330                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_StuffCmd, "QC function CSQC_Parse_StuffCmd is missing");
 331                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 332         }
 333         else
 334                 Cbuf_AddText(msg);
 335         CSQC_END
 336 }
 337
 338 static void CL_VM_Parse_Print (const char *msg)
 339 {
 340         int restorevm_tempstringsbuf_cursize;
 341         prog->globals.client->time = cl.time;
 342         restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 343         PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 344         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_Print, "QC function CSQC_Parse_Print is missing");
 345         vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 346 }
 347
 348 void CSQC_AddPrintText (const char *msg)
 349 {
 350         size_t i;
 351         if(!cl.csqc_loaded)
 352         {
 353                 Con_Print(msg);
 354                 return;
 355         }
 356         CSQC_BEGIN
 357         if(prog->funcoffsets.CSQC_Parse_Print)
 358         {
 359                 // FIXME: is this bugged?
 360                 i = strlen(msg)-1;
 361                 if(msg[i] != '\n' && msg[i] != '\r')
 362                 {
 363                         if(strlen(cl.csqc_printtextbuf)+i >= MAX_INPUTLINE)
 364                         {
 365                                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 366                                 cl.csqc_printtextbuf[0] = 0;
 367                         }
 368                         else
 369                                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 370                         return;
 371                 }
 372                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 373                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 374                 cl.csqc_printtextbuf[0] = 0;
 375         }
 376         else
 377                 Con_Print(msg);
 378         CSQC_END
 379 }
 380
 381 void CL_VM_Parse_CenterPrint (const char *msg)
 382 {
 383         int restorevm_tempstringsbuf_cursize;
 384         if(!cl.csqc_loaded)
 385         {
 386                 SCR_CenterPrint((char*)msg);
 387                 return;
 388         }
 389         CSQC_BEGIN
 390         if(prog->funcoffsets.CSQC_Parse_CenterPrint)
 391         {
 392                 prog->globals.client->time = cl.time;
 393                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 394                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 395                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_CenterPrint, "QC function CSQC_Parse_CenterPrint is missing");
 396                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 397         }
 398         else
 399                 SCR_CenterPrint((char*)msg);
 400         CSQC_END
 401 }
 402
 403 float CL_VM_Event (float event)         //[515]: needed ? I'd say "YES", but don't know for what :D
 404 {
 405         float r = 0;
 406         if(!cl.csqc_loaded)
 407                 return 0;
 408         CSQC_BEGIN
 409         if(prog->funcoffsets.CSQC_Event)
 410         {
 411                 prog->globals.client->time = cl.time;
 412                 PRVM_G_FLOAT(OFS_PARM0) = event;
 413                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event, "QC function CSQC_Event is missing");
 414                 r = CSQC_RETURNVAL;
 415         }
 416         CSQC_END
 417         return r;
 418 }
 419
 420 void CSQC_ReadEntities (void)
 421 {
 422         unsigned short entnum, oldself, realentnum;
 423         if(!cl.csqc_loaded)
 424         {
 425                 Host_Error ("CSQC_ReadEntities: CSQC is not loaded");
 426                 return;
 427         }
 428
 429         CSQC_BEGIN
 430                 prog->globals.client->time = cl.time;
 431                 oldself = prog->globals.client->self;
 432                 while(1)
 433                 {
 434                         entnum = MSG_ReadShort();
 435                         if(!entnum || msg_badread)
 436                                 return;
 437                         realentnum = entnum & 0x7FFF;
 438                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum];
 439                         if(entnum & 0x8000)
 440                         {
 441                                 if(prog->globals.client->self)
 442                                 {
 443                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Remove, "QC function CSQC_Ent_Remove is missing");
 444                                         cl.csqc_server2csqcentitynumber[realentnum] = 0;
 445                                 }
 446                                 else
 447                                         Con_Printf("Smth bad happens in csqc...\n");    //[515]: never happens ?
 448                         }
 449                         else
 450                         {
 451                                 if(!prog->globals.client->self)
 452                                 {
 453                                         prvm_edict_t    *ed;
 454                                         ed = PRVM_ED_Alloc();
 455                                         ed->fields.client->entnum = realentnum;
 456                                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT_TO_PROG(ed);
 457                                         PRVM_G_FLOAT(OFS_PARM0) = 1;
 458                                 }
 459                                 else
 460                                         PRVM_G_FLOAT(OFS_PARM0) = 0;
 461                                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 462                         }
 463                 }
 464                 prog->globals.client->self = oldself;
 465         CSQC_END
 466 }
 467
 468 void CL_VM_CB_BeginIncreaseEdicts(void)
 469 {
 470         int i;
 471         prvm_edict_t *ent;
 472
 473         // links don't survive the transition, so unlink everything
 474         for (i = 0, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
 475         {
 476                 if (!ent->priv.server->free)
 477                         World_UnlinkEdict(prog->edicts + i);
 478                 memset(&ent->priv.server->areagrid, 0, sizeof(ent->priv.server->areagrid));
 479         }
 480         World_Clear(&cl.world);
 481 }
 482
 483 void CL_VM_CB_EndIncreaseEdicts(void)
 484 {
 485         int i;
 486         prvm_edict_t *ent;
 487
 488         // link every entity except world
 489         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
 490                 if (!ent->priv.server->free)
 491                         CL_LinkEdict(ent);
 492 }
 493
 494 void CL_VM_CB_InitEdict(prvm_edict_t *e)
 495 {
 496         e->priv.server->move = false; // don't move on first frame
 497 }
 498
 499 void CL_VM_CB_FreeEdict(prvm_edict_t *ed)
 500 {
 501         World_UnlinkEdict(ed);
 502         memset(ed->fields.client, 0, sizeof(*ed->fields.client));
 503 }
 504
 505 void CL_VM_CB_CountEdicts(void)
 506 {
 507         int             i;
 508         prvm_edict_t    *ent;
 509         int             active = 0, models = 0, solid = 0;
 510
 511         for (i=0 ; i<prog->num_edicts ; i++)
 512         {
 513                 ent = PRVM_EDICT_NUM(i);
 514                 if (ent->priv.server->free)
 515                         continue;
 516                 active++;
 517                 if (ent->fields.client->solid)
 518                         solid++;
 519                 if (ent->fields.client->model)
 520                         models++;
 521         }
 522
 523         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
 524         Con_Printf("active    :%3i\n", active);
 525         Con_Printf("view      :%3i\n", models);
 526         Con_Printf("touch     :%3i\n", solid);
 527 }
 528
 529 qboolean CL_VM_CB_LoadEdict(prvm_edict_t *ent)
 530 {
 531         return true;
 532 }
 533
 534 void Cmd_ClearCsqcFuncs (void);
 535
 536 void CL_VM_Init (void)
 537 {
 538         unsigned char *csprogsdata;
 539         fs_offset_t csprogsdatasize;
 540         int csprogsdatacrc, requiredcrc;
 541         int requiredsize;
 542
 543         // reset csqc_progcrc after reading it, so that changing servers doesn't
 544         // expect csqc on the next server
 545         requiredcrc = csqc_progcrc.integer;
 546         requiredsize = csqc_progsize.integer;
 547         Cvar_SetValueQuick(&csqc_progcrc, -1);
 548         Cvar_SetValueQuick(&csqc_progsize, -1);
 549
 550         // if the server is not requesting a csprogs, then we're done here
 551         if (requiredcrc < 0)
 552                 return;
 553
 554         // see if the requested csprogs.dat file matches the requested crc
 555         csprogsdatacrc = -1;
 556         csprogsdata = FS_LoadFile(va("dlcache/%s.%i.%i", csqc_progname.string, requiredsize, requiredcrc), tempmempool, true, &csprogsdatasize);
 557         if (!csprogsdata)
 558                 csprogsdata = FS_LoadFile(csqc_progname.string, tempmempool, true, &csprogsdatasize);
 559         if (csprogsdata)
 560         {
 561                 csprogsdatacrc = CRC_Block(csprogsdata, csprogsdatasize);
 562                 Mem_Free(csprogsdata);
 563                 if (csprogsdatacrc != requiredcrc || csprogsdatasize != requiredsize)
 564                 {
 565                         if (cls.demoplayback)
 566                         {
 567                                 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);
 568                                 return;
 569                         }
 570                         else
 571                         {
 572                                 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);
 573                                 CL_Disconnect();
 574                                 return;
 575                         }
 576                 }
 577         }
 578         else
 579         {
 580                 if (requiredcrc >= 0)
 581                 {
 582                         if (cls.demoplayback)
 583                                 Con_Printf("CL_VM_Init: demo requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 584                         else
 585                                 Con_Printf("CL_VM_Init: server requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 586                         CL_Disconnect();
 587                 }
 588                 return;
 589         }
 590
 591         PRVM_Begin;
 592         PRVM_InitProg(PRVM_CLIENTPROG);
 593
 594         // allocate the mempools
 595         prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
 596         prog->headercrc = CL_PROGHEADER_CRC;
 597         prog->edictprivate_size = 0; // no private struct used
 598         prog->name = CL_NAME;
 599         prog->num_edicts = 1;
 600         prog->max_edicts = 512;
 601         prog->limit_edicts = CL_MAX_EDICTS;
 602         prog->reserved_edicts = 0;
 603         prog->edictprivate_size = sizeof(edict_engineprivate_t);
 604         prog->extensionstring = vm_sv_extensions;
 605         prog->builtins = vm_cl_builtins;
 606         prog->numbuiltins = vm_cl_numbuiltins;
 607         prog->begin_increase_edicts = CL_VM_CB_BeginIncreaseEdicts;
 608         prog->end_increase_edicts = CL_VM_CB_EndIncreaseEdicts;
 609         prog->init_edict = CL_VM_CB_InitEdict;
 610         prog->free_edict = CL_VM_CB_FreeEdict;
 611         prog->count_edicts = CL_VM_CB_CountEdicts;
 612         prog->load_edict = CL_VM_CB_LoadEdict;
 613         prog->init_cmd = VM_CL_Cmd_Init;
 614         prog->reset_cmd = VM_CL_Cmd_Reset;
 615         prog->error_cmd = CL_VM_Error;
 616
 617         PRVM_LoadProgs(csqc_progname.string, cl_numrequiredfunc, cl_required_func, 0, NULL, 0, NULL);
 618
 619         if (!prog->loaded)
 620         {
 621                 CL_VM_Error("CSQC ^2failed to load\n");
 622                 if(!sv.active)
 623                         CL_Disconnect();
 624                 return;
 625         }
 626
 627         Con_Printf("CSQC ^5loaded (crc=%i, size=%i)\n", csprogsdatacrc, (int)csprogsdatasize);
 628
 629         // check if OP_STATE animation is possible in this dat file
 630         if (prog->fieldoffsets.nextthink >= 0 && prog->fieldoffsets.frame >= 0 && prog->fieldoffsets.think >= 0 && prog->globaloffsets.self >= 0)
 631                 prog->flag |= PRVM_OP_STATE;
 632
 633         // set time
 634         prog->globals.client->time = cl.time;
 635
 636         prog->globals.client->mapname = PRVM_SetEngineString(cl.worldmodel->name);
 637         prog->globals.client->player_localentnum = cl.playerentity;
 638
 639         // call the prog init
 640         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Init, "QC function CSQC_Init is missing");
 641
 642         PRVM_End;
 643         cl.csqc_loaded = true;
 644
 645         cl.csqc_vidvars.drawcrosshair = false;
 646         cl.csqc_vidvars.drawenginesbar = false;
 647 }
 648
 649 void CL_VM_ShutDown (void)
 650 {
 651         Cmd_ClearCsqcFuncs();
 652         Cvar_SetValueQuick(&csqc_progcrc, -1);
 653         Cvar_SetValueQuick(&csqc_progsize, -1);
 654         if(!cl.csqc_loaded)
 655                 return;
 656         CSQC_BEGIN
 657                 prog->globals.client->time = cl.time;
 658                 if (prog->funcoffsets.CSQC_Shutdown)
 659                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Shutdown, "QC function CSQC_Shutdown is missing");
 660                 PRVM_ResetProg();
 661         CSQC_END
 662         Con_Print("CSQC ^1unloaded\n");
 663         cl.csqc_loaded = false;
 664 }