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
  17 static prvm_prog_t *csqc_tmpprog;
  18
  19 //[515]: these are required funcs
  20 static char *cl_required_func[] =
  21 {
  22         "CSQC_Init",
  23         "CSQC_InputEvent",
  24         "CSQC_UpdateView",
  25         "CSQC_ConsoleCommand",
  26 };
  27
  28 static int cl_numrequiredfunc = sizeof(cl_required_func) / sizeof(char*);
  29
  30 void CL_VM_Error (const char *format, ...) DP_FUNC_PRINTF(1);
  31 void CL_VM_Error (const char *format, ...)      //[515]: hope it will be never executed =)
  32 {
  33         char errorstring[4096];
  34         va_list argptr;
  35
  36         va_start (argptr, format);
  37         dpvsnprintf (errorstring, sizeof(errorstring), format, argptr);
  38         va_end (argptr);
  39 //      Con_Printf( "CL_VM_Error: %s\n", errorstring );
  40
  41         PRVM_Crash();
  42         cl.csqc_loaded = false;
  43
  44         Cvar_SetValueQuick(&csqc_progcrc, -1);
  45         Cvar_SetValueQuick(&csqc_progsize, -1);
  46
  47 //      Host_AbortCurrentFrame();       //[515]: hmmm... if server says it needs csqc then client MUST disconnect
  48         Host_Error("CL_VM_Error: %s", errorstring);
  49 }
  50 void CL_VM_UpdateDmgGlobals (int dmg_take, int dmg_save, vec3_t dmg_origin)
  51 {
  52         prvm_eval_t *val;
  53         if(cl.csqc_loaded)
  54         {
  55                 CSQC_BEGIN
  56                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_take);
  57                 if(val)
  58                         val->_float = dmg_take;
  59                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_save);
  60                 if(val)
  61                         val->_float = dmg_save;
  62                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_origin);
  63                 if(val)
  64                 {
  65                         val->vector[0] = dmg_origin[0];
  66                         val->vector[1] = dmg_origin[1];
  67                         val->vector[2] = dmg_origin[2];
  68                 }
  69                 CSQC_END
  70         }
  71 }
  72
  73 void CSQC_UpdateNetworkTimes(double newtime, double oldtime)
  74 {
  75         prvm_eval_t *val;
  76         if(!cl.csqc_loaded)
  77                 return;
  78         CSQC_BEGIN
  79         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.servertime)))
  80                 val->_float = newtime;
  81         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.serverprevtime)))
  82                 val->_float = oldtime;
  83         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.serverdeltatime)))
  84                 val->_float = newtime - oldtime;
  85         CSQC_END
  86 }
  87
  88 //[515]: set globals before calling R_UpdateView, WEIRD CRAP
  89 static void CSQC_SetGlobals (void)
  90 {
  91         prvm_eval_t *val;
  92         CSQC_BEGIN
  93                 prog->globals.client->time = cl.time;
  94                 prog->globals.client->frametime = max(0, cl.time - cl.oldtime);
  95                 prog->globals.client->servercommandframe = cls.servermovesequence;
  96                 prog->globals.client->clientcommandframe = cl.movecmd[0].sequence;
  97                 VectorCopy(cl.viewangles, prog->globals.client->input_angles);
  98                 VectorCopy(cl.viewangles, cl.csqc_angles);
  99                 // // FIXME: this actually belongs into getinputstate().. [12/17/2007 Black]
 100                 prog->globals.client->input_buttons = cl.movecmd[0].buttons;
 101                 VectorSet(prog->globals.client->input_movevalues, cl.movecmd[0].forwardmove, cl.movecmd[0].sidemove, cl.movecmd[0].upmove);
 102                 //VectorCopy(cl.movement_origin, cl.csqc_origin);
 103                 Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, cl.csqc_origin);
 104
 105                 // LordHavoc: Spike says not to do this, but without pmove_org the
 106                 // CSQC is useless as it can't alter the view origin without
 107                 // completely replacing it
 108                 VectorCopy(cl.csqc_origin, prog->globals.client->pmove_org);
 109                 VectorCopy(cl.velocity, prog->globals.client->pmove_vel);
 110
 111                 if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.view_angles)))
 112                         VectorCopy(cl.viewangles, val->vector);
 113                 prog->globals.client->maxclients = cl.maxclients;
 114         CSQC_END
 115 }
 116
 117 void CSQC_Predraw (prvm_edict_t *ed)
 118 {
 119         int b;
 120         if(!ed->fields.client->predraw)
 121                 return;
 122         b = prog->globals.client->self;
 123         prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 124         PRVM_ExecuteProgram(ed->fields.client->predraw, "CSQC_Predraw: NULL function\n");
 125         prog->globals.client->self = b;
 126 }
 127
 128 void CSQC_Think (prvm_edict_t *ed)
 129 {
 130         int b;
 131         if(ed->fields.client->think)
 132         if(ed->fields.client->nextthink && ed->fields.client->nextthink <= prog->globals.client->time)
 133         {
 134                 ed->fields.client->nextthink = 0;
 135                 b = prog->globals.client->self;
 136                 prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 137                 PRVM_ExecuteProgram(ed->fields.client->think, "CSQC_Think: NULL function\n");
 138                 prog->globals.client->self = b;
 139         }
 140 }
 141
 142 extern cvar_t cl_noplayershadow;
 143 qboolean CSQC_AddRenderEdict(prvm_edict_t *ed)
 144 {
 145         int renderflags;
 146         int c;
 147         float scale;
 148         prvm_eval_t *val;
 149         entity_render_t *entrender;
 150         dp_model_t *model;
 151         matrix4x4_t tagmatrix, matrix2;
 152
 153         model = CL_GetModelFromEdict(ed);
 154         if (!model)
 155                 return false;
 156
 157         entrender = CL_NewTempEntity(0);
 158         if (!entrender)
 159                 return false;
 160
 161         entrender->model = model;
 162         entrender->skinnum = (int)ed->fields.client->skin;
 163         entrender->effects |= entrender->model->effects;
 164         scale = 1;
 165         renderflags = 0;
 166         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.renderflags)) && val->_float)     renderflags = (int)val->_float;
 167         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.alpha)) && val->_float)           entrender->alpha = val->_float;
 168         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.scale)) && val->_float)           entrender->scale = scale = val->_float;
 169         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.colormod)) && VectorLength2(val->vector)) VectorCopy(val->vector, entrender->colormod);
 170         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.effects)) && val->_float) entrender->effects |= (int)val->_float;
 171         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_entity)) && val->edict)
 172         {
 173                 int tagentity;
 174                 int tagindex = 0;
 175                 tagentity = val->edict;
 176                 if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_index)) && val->_float)
 177                         tagindex = (int)val->_float;
 178                 CL_GetTagMatrix (&tagmatrix, PRVM_PROG_TO_EDICT(tagentity), tagindex);
 179         }
 180         else
 181                 Matrix4x4_CreateIdentity(&tagmatrix);
 182
 183         if (renderflags & RF_USEAXIS)
 184         {
 185                 vec3_t left;
 186                 VectorNegate(prog->globals.client->v_right, left);
 187                 Matrix4x4_FromVectors(&matrix2, prog->globals.client->v_forward, left, prog->globals.client->v_up, ed->fields.client->origin);
 188                 Matrix4x4_Scale(&matrix2, scale, 1);
 189         }
 190         else
 191         {
 192                 vec3_t angles;
 193                 VectorCopy(ed->fields.client->angles, angles);
 194                 // if model is alias, reverse pitch direction
 195                 if (entrender->model->type == mod_alias)
 196                         angles[0] = -angles[0];
 197
 198                 // set up the render matrix
 199                 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);
 200         }
 201
 202         // set up the animation data
 203         // self.frame is the interpolation target (new frame)
 204         // self.frame1time is the animation base time for the interpolation target
 205         // self.frame2 is the interpolation start (previous frame)
 206         // self.frame2time is the animation base time for the interpolation start
 207         // self.lerpfrac is the interpolation strength for self.frame
 208         // 3+ are for additional blends (the main use for this feature is lerping
 209         // pitch angle on a player model where the animator set up 5 sets of
 210         // animations and the csqc simply lerps between sets)
 211         entrender->framegroupblend[0].frame = entrender->framegroupblend[1].frame = (int) ed->fields.client->frame;
 212         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2))) entrender->framegroupblend[1].frame = (int) val->_float;
 213         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame3))) entrender->framegroupblend[2].frame = (int) val->_float;
 214         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame4))) entrender->framegroupblend[3].frame = (int) val->_float;
 215         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame1time))) entrender->framegroupblend[0].start = val->_float;
 216         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2time))) entrender->framegroupblend[1].start = val->_float;
 217         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame3time))) entrender->framegroupblend[2].start = val->_float;
 218         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame4time))) entrender->framegroupblend[3].start = val->_float;
 219         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac))) entrender->framegroupblend[0].lerp = val->_float;
 220         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac3))) entrender->framegroupblend[2].lerp = val->_float;
 221         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac4))) entrender->framegroupblend[3].lerp = val->_float;
 222         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.shadertime))) entrender->shadertime = val->_float;
 223         // assume that the (missing) lerpfrac2 is whatever remains after lerpfrac+lerpfrac3+lerpfrac4 are summed
 224         entrender->framegroupblend[1].lerp = 1 - entrender->framegroupblend[0].lerp - entrender->framegroupblend[2].lerp - entrender->framegroupblend[3].lerp;
 225
 226         // concat the matrices to make the entity relative to its tag
 227         Matrix4x4_Concat(&entrender->matrix, &tagmatrix, &matrix2);
 228
 229         if(renderflags)
 230         {
 231                 if(renderflags & RF_VIEWMODEL)  entrender->flags |= RENDER_VIEWMODEL;
 232                 if(renderflags & RF_EXTERNALMODEL)entrender->flags |= RENDER_EXTERIORMODEL;
 233                 if(renderflags & RF_DEPTHHACK)  entrender->effects |= EF_NODEPTHTEST;
 234                 if(renderflags & RF_ADDITIVE)           entrender->effects |= EF_ADDITIVE;
 235         }
 236
 237         c = (int)ed->fields.client->colormap;
 238         if (c <= 0)
 239                 CL_SetEntityColormapColors(entrender, -1);
 240         else if (c <= cl.maxclients && cl.scores != NULL)
 241                 CL_SetEntityColormapColors(entrender, cl.scores[c-1].colors);
 242         else
 243                 CL_SetEntityColormapColors(entrender, c);
 244
 245         entrender->flags &= ~(RENDER_SHADOW | RENDER_LIGHT | RENDER_NOSELFSHADOW);
 246         // either fullbright or lit
 247         if (!(entrender->effects & EF_FULLBRIGHT) && !r_fullbright.integer)
 248                 entrender->flags |= RENDER_LIGHT;
 249         // hide player shadow during intermission or nehahra movie
 250         if (!(entrender->effects & (EF_NOSHADOW | EF_ADDITIVE | EF_NODEPTHTEST))
 251          &&  (entrender->alpha >= 1)
 252          && !(entrender->flags & RENDER_VIEWMODEL)
 253          && (!(entrender->flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 254                 entrender->flags |= RENDER_SHADOW;
 255         if (entrender->flags & RENDER_VIEWMODEL)
 256                 entrender->flags |= RENDER_NOSELFSHADOW;
 257         if (entrender->effects & EF_NOSELFSHADOW)
 258                 entrender->flags |= RENDER_NOSELFSHADOW;
 259
 260         // make the other useful stuff
 261         CL_UpdateRenderEntity(entrender);
 262
 263         return true;
 264 }
 265
 266 qboolean CL_VM_InputEvent (qboolean down, int key, int ascii)
 267 {
 268         qboolean r;
 269
 270         if(!cl.csqc_loaded)
 271                 return false;
 272
 273         CSQC_BEGIN
 274                 if (!prog->funcoffsets.CSQC_InputEvent)
 275                         r = false;
 276                 else
 277                 {
 278                         prog->globals.client->time = cl.time;
 279                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 280                         PRVM_G_FLOAT(OFS_PARM0) = !down; // 0 is down, 1 is up
 281                         PRVM_G_FLOAT(OFS_PARM1) = key;
 282                         PRVM_G_FLOAT(OFS_PARM2) = ascii;
 283                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_InputEvent, "QC function CSQC_InputEvent is missing");
 284                         r = CSQC_RETURNVAL;
 285                 }
 286         CSQC_END
 287         return r;
 288 }
 289
 290 qboolean CL_VM_UpdateView (void)
 291 {
 292         vec3_t emptyvector;
 293         emptyvector[0] = 0;
 294         emptyvector[1] = 0;
 295         emptyvector[2] = 0;
 296 //      vec3_t oldangles;
 297         if(!cl.csqc_loaded)
 298                 return false;
 299         CSQC_BEGIN
 300                 //VectorCopy(cl.viewangles, oldangles);
 301                 prog->globals.client->time = cl.time;
 302                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 303                 CSQC_SetGlobals();
 304                 // clear renderable entity and light lists to prevent crashes if the
 305                 // CSQC_UpdateView function does not call R_ClearScene as it should
 306                 r_refdef.scene.numentities = 0;
 307                 r_refdef.scene.numlights = 0;
 308                 // pass in width and height as parameters (EXT_CSQC_1)
 309                 PRVM_G_FLOAT(OFS_PARM0) = vid.width;
 310                 PRVM_G_FLOAT(OFS_PARM1) = vid.height;
 311                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_UpdateView, "QC function CSQC_UpdateView is missing");
 312                 //VectorCopy(oldangles, cl.viewangles);
 313                 // Dresk : Reset Dmg Globals Here
 314                 CL_VM_UpdateDmgGlobals(0, 0, emptyvector);
 315         CSQC_END
 316         return true;
 317 }
 318
 319 extern sizebuf_t vm_tempstringsbuf;
 320 qboolean CL_VM_ConsoleCommand (const char *cmd)
 321 {
 322         int restorevm_tempstringsbuf_cursize;
 323         qboolean r = false;
 324         if(!cl.csqc_loaded)
 325                 return false;
 326         CSQC_BEGIN
 327         if (prog->funcoffsets.CSQC_ConsoleCommand)
 328         {
 329                 prog->globals.client->time = cl.time;
 330                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 331                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 332                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(cmd);
 333                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_ConsoleCommand, "QC function CSQC_ConsoleCommand is missing");
 334                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 335                 r = CSQC_RETURNVAL;
 336         }
 337         CSQC_END
 338         return r;
 339 }
 340
 341 qboolean CL_VM_Parse_TempEntity (void)
 342 {
 343         int                     t;
 344         qboolean        r = false;
 345         if(!cl.csqc_loaded)
 346                 return false;
 347         CSQC_BEGIN
 348         if(prog->funcoffsets.CSQC_Parse_TempEntity)
 349         {
 350                 t = msg_readcount;
 351                 prog->globals.client->time = cl.time;
 352                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 353                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_TempEntity, "QC function CSQC_Parse_TempEntity is missing");
 354                 r = CSQC_RETURNVAL;
 355                 if(!r)
 356                 {
 357                         msg_readcount = t;
 358                         msg_badread = false;
 359                 }
 360         }
 361         CSQC_END
 362         return r;
 363 }
 364
 365 void CL_VM_Parse_StuffCmd (const char *msg)
 366 {
 367         int restorevm_tempstringsbuf_cursize;
 368         if(msg[0] == 'c')
 369         if(msg[1] == 's')
 370         if(msg[2] == 'q')
 371         if(msg[3] == 'c')
 372         {
 373                 // if this is setting a csqc variable, deprotect csqc_progcrc
 374                 // temporarily so that it can be set by the cvar command,
 375                 // and then reprotect it afterwards
 376                 int crcflags = csqc_progcrc.flags;
 377                 int sizeflags = csqc_progcrc.flags;
 378                 csqc_progcrc.flags &= ~CVAR_READONLY;
 379                 csqc_progsize.flags &= ~CVAR_READONLY;
 380                 Cmd_ExecuteString (msg, src_command);
 381                 csqc_progcrc.flags = crcflags;
 382                 csqc_progsize.flags = sizeflags;
 383                 return;
 384         }
 385
 386         if(cls.demoplayback)
 387         if(!strncmp(msg, "curl --clear_autodownload\ncurl --pak --forthismap --as ", 55))
 388         {
 389                 // special handling for map download commands
 390                 // run these commands IMMEDIATELY, instead of waiting for a client frame
 391                 // that way, there is no black screen when playing back demos
 392                 // I know this is a really ugly hack, but I can't think of any better way
 393                 // FIXME find the actual CAUSE of this, and make demo playback WAIT
 394                 // until all maps are loaded, then remove this hack
 395
 396                 char buf[MAX_INPUTLINE];
 397                 const char *p, *q;
 398                 size_t l;
 399
 400                 p = msg;
 401
 402                 for(;;)
 403                 {
 404                         q = strchr(p, '\n');
 405                         if(q)
 406                                 l = q - p;
 407                         else
 408                                 l = strlen(p);
 409                         if(l > sizeof(buf) - 1)
 410                                 l = sizeof(buf) - 1;
 411                         strlcpy(buf, p, l + 1); // strlcpy needs a + 1 as it includes the newline!
 412
 413                         Cmd_ExecuteString(buf, src_command);
 414
 415                         p += l;
 416                         if(*p == '\n')
 417                                 ++p; // skip the newline and continue
 418                         else
 419                                 break; // end of string or overflow
 420                 }
 421                 Cmd_ExecuteString("curl --clear_autodownload", src_command); // don't inhibit CSQC loading
 422                 return;
 423         }
 424
 425         if(!cl.csqc_loaded)
 426         {
 427                 Cbuf_AddText(msg);
 428                 return;
 429         }
 430         CSQC_BEGIN
 431         if(prog->funcoffsets.CSQC_Parse_StuffCmd)
 432         {
 433                 prog->globals.client->time = cl.time;
 434                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 435                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 436                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 437                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_StuffCmd, "QC function CSQC_Parse_StuffCmd is missing");
 438                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 439         }
 440         else
 441                 Cbuf_AddText(msg);
 442         CSQC_END
 443 }
 444
 445 static void CL_VM_Parse_Print (const char *msg)
 446 {
 447         int restorevm_tempstringsbuf_cursize;
 448         prog->globals.client->time = cl.time;
 449         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 450         restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 451         PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 452         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_Print, "QC function CSQC_Parse_Print is missing");
 453         vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 454 }
 455
 456 void CSQC_AddPrintText (const char *msg)
 457 {
 458         size_t i;
 459         if(!cl.csqc_loaded)
 460         {
 461                 Con_Print(msg);
 462                 return;
 463         }
 464         CSQC_BEGIN
 465         if(prog->funcoffsets.CSQC_Parse_Print)
 466         {
 467                 // FIXME: is this bugged?
 468                 i = strlen(msg)-1;
 469                 if(msg[i] != '\n' && msg[i] != '\r')
 470                 {
 471                         if(strlen(cl.csqc_printtextbuf)+i >= MAX_INPUTLINE)
 472                         {
 473                                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 474                                 cl.csqc_printtextbuf[0] = 0;
 475                         }
 476                         else
 477                                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 478                         return;
 479                 }
 480                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 481                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 482                 cl.csqc_printtextbuf[0] = 0;
 483         }
 484         else
 485                 Con_Print(msg);
 486         CSQC_END
 487 }
 488
 489 void CL_VM_Parse_CenterPrint (const char *msg)
 490 {
 491         int restorevm_tempstringsbuf_cursize;
 492         if(!cl.csqc_loaded)
 493         {
 494                 SCR_CenterPrint(msg);
 495                 return;
 496         }
 497         CSQC_BEGIN
 498         if(prog->funcoffsets.CSQC_Parse_CenterPrint)
 499         {
 500                 prog->globals.client->time = cl.time;
 501                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 502                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 503                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 504                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_CenterPrint, "QC function CSQC_Parse_CenterPrint is missing");
 505                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 506         }
 507         else
 508                 SCR_CenterPrint(msg);
 509         CSQC_END
 510 }
 511
 512 void CL_VM_UpdateIntermissionState (int intermission)
 513 {
 514         prvm_eval_t *val;
 515         if(cl.csqc_loaded)
 516         {
 517                 CSQC_BEGIN
 518                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.intermission);
 519                 if(val)
 520                         val->_float = intermission;
 521                 CSQC_END
 522         }
 523 }
 524 void CL_VM_UpdateShowingScoresState (int showingscores)
 525 {
 526         prvm_eval_t *val;
 527         if(cl.csqc_loaded)
 528         {
 529                 CSQC_BEGIN
 530                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.sb_showscores);
 531                 if(val)
 532                         val->_float = showingscores;
 533                 CSQC_END
 534         }
 535 }
 536 qboolean CL_VM_Event_Sound(int sound_num, float volume, int channel, float attenuation, int ent, vec3_t pos)
 537 {
 538         qboolean r = false;
 539         if(cl.csqc_loaded)
 540         {
 541                 CSQC_BEGIN
 542                 if(prog->funcoffsets.CSQC_Event_Sound)
 543                 {
 544                         prog->globals.client->time = cl.time;
 545                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 546                         PRVM_G_FLOAT(OFS_PARM0) = ent;
 547                         PRVM_G_FLOAT(OFS_PARM1) = channel;
 548                         PRVM_G_INT(OFS_PARM2) = PRVM_SetTempString(cl.sound_name[sound_num] );
 549                         PRVM_G_FLOAT(OFS_PARM3) = volume;
 550                         PRVM_G_FLOAT(OFS_PARM4) = attenuation;
 551                         VectorCopy(pos, PRVM_G_VECTOR(OFS_PARM5) );
 552                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event_Sound, "QC function CSQC_Event_Sound is missing");
 553                         r = CSQC_RETURNVAL;
 554                 }
 555                 CSQC_END
 556         }
 557
 558         return r;
 559 }
 560 void CL_VM_UpdateCoopDeathmatchGlobals (int gametype)
 561 {
 562         // Avoid global names for clean(er) coding
 563         int localcoop;
 564         int localdeathmatch;
 565
 566         prvm_eval_t *val;
 567         if(cl.csqc_loaded)
 568         {
 569                 if(gametype == GAME_COOP)
 570                 {
 571                         localcoop = 1;
 572                         localdeathmatch = 0;
 573                 }
 574                 else
 575                 if(gametype == GAME_DEATHMATCH)
 576                 {
 577                         localcoop = 0;
 578                         localdeathmatch = 1;
 579                 }
 580                 else
 581                 {
 582                         // How did the ServerInfo send an unknown gametype?
 583                         // Better just assign the globals as 0...
 584                         localcoop = 0;
 585                         localdeathmatch = 0;
 586                 }
 587                 CSQC_BEGIN
 588                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.coop);
 589                 if(val)
 590                         val->_float = localcoop;
 591                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.deathmatch);
 592                 if(val)
 593                         val->_float = localdeathmatch;
 594                 CSQC_END
 595         }
 596 }
 597 float CL_VM_Event (float event)         //[515]: needed ? I'd say "YES", but don't know for what :D
 598 {
 599         float r = 0;
 600         if(!cl.csqc_loaded)
 601                 return 0;
 602         CSQC_BEGIN
 603         if(prog->funcoffsets.CSQC_Event)
 604         {
 605                 prog->globals.client->time = cl.time;
 606                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 607                 PRVM_G_FLOAT(OFS_PARM0) = event;
 608                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event, "QC function CSQC_Event is missing");
 609                 r = CSQC_RETURNVAL;
 610         }
 611         CSQC_END
 612         return r;
 613 }
 614
 615 void CSQC_ReadEntities (void)
 616 {
 617         unsigned short entnum, oldself, realentnum;
 618         if(!cl.csqc_loaded)
 619         {
 620                 Host_Error ("CSQC_ReadEntities: CSQC is not loaded");
 621                 return;
 622         }
 623
 624         CSQC_BEGIN
 625                 prog->globals.client->time = cl.time;
 626                 oldself = prog->globals.client->self;
 627                 while(1)
 628                 {
 629                         entnum = MSG_ReadShort();
 630                         if(!entnum || msg_badread)
 631                                 return;
 632                         realentnum = entnum & 0x7FFF;
 633                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum];
 634                         if(entnum & 0x8000)
 635                         {
 636                                 if(prog->globals.client->self)
 637                                 {
 638                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Remove, "QC function CSQC_Ent_Remove is missing");
 639                                         cl.csqc_server2csqcentitynumber[realentnum] = 0;
 640                                 }
 641                                 else
 642                                 {
 643                                         // LordHavoc: removing an entity that is already gone on
 644                                         // the csqc side is possible for legitimate reasons (such
 645                                         // as a repeat of the remove message), so no warning is
 646                                         // needed
 647                                         //Con_Printf("Bad csqc_server2csqcentitynumber map\n"); //[515]: never happens ?
 648                                 }
 649                         }
 650                         else
 651                         {
 652                                 if(!prog->globals.client->self)
 653                                 {
 654                                         if(!prog->funcoffsets.CSQC_Ent_Spawn)
 655                                         {
 656                                                 prvm_edict_t    *ed;
 657                                                 ed = PRVM_ED_Alloc();
 658                                                 ed->fields.client->entnum = realentnum;
 659                                                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT_TO_PROG(ed);
 660                                         }
 661                                         else
 662                                         {
 663                                                 // entity( float entnum ) CSQC_Ent_Spawn;
 664                                                 // the qc function should set entnum, too (this way it also can return world [2/1/2008 Andreas]
 665                                                 PRVM_G_FLOAT(OFS_PARM0) = (float) realentnum;
 666                                                 // make sure no one gets wrong ideas
 667                                                 prog->globals.client->self = 0;
 668                                                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Spawn, "QC function CSQC_Ent_Spawn is missing");
 669                                                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT( PRVM_G_INT( OFS_RETURN ) );
 670                                         }
 671                                         PRVM_G_FLOAT(OFS_PARM0) = 1;
 672                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 673                                 }
 674                                 else {
 675                                         PRVM_G_FLOAT(OFS_PARM0) = 0;
 676                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 677                                 }
 678                         }
 679                 }
 680                 prog->globals.client->self = oldself;
 681         CSQC_END
 682 }
 683
 684 void CL_VM_CB_BeginIncreaseEdicts(void)
 685 {
 686         // links don't survive the transition, so unlink everything
 687         World_UnlinkAll(&cl.world);
 688 }
 689
 690 void CL_VM_CB_EndIncreaseEdicts(void)
 691 {
 692         int i;
 693         prvm_edict_t *ent;
 694
 695         // link every entity except world
 696         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
 697                 if (!ent->priv.server->free)
 698                         CL_LinkEdict(ent);
 699 }
 700
 701 void CL_VM_CB_InitEdict(prvm_edict_t *e)
 702 {
 703         e->priv.server->move = false; // don't move on first frame
 704 }
 705
 706 void CL_VM_CB_FreeEdict(prvm_edict_t *ed)
 707 {
 708         World_UnlinkEdict(ed);
 709         memset(ed->fields.client, 0, sizeof(*ed->fields.client));
 710 }
 711
 712 void CL_VM_CB_CountEdicts(void)
 713 {
 714         int             i;
 715         prvm_edict_t    *ent;
 716         int             active = 0, models = 0, solid = 0;
 717
 718         for (i=0 ; i<prog->num_edicts ; i++)
 719         {
 720                 ent = PRVM_EDICT_NUM(i);
 721                 if (ent->priv.server->free)
 722                         continue;
 723                 active++;
 724                 if (ent->fields.client->solid)
 725                         solid++;
 726                 if (ent->fields.client->model)
 727                         models++;
 728         }
 729
 730         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
 731         Con_Printf("active    :%3i\n", active);
 732         Con_Printf("view      :%3i\n", models);
 733         Con_Printf("touch     :%3i\n", solid);
 734 }
 735
 736 qboolean CL_VM_CB_LoadEdict(prvm_edict_t *ent)
 737 {
 738         return true;
 739 }
 740
 741 void Cmd_ClearCsqcFuncs (void);
 742
 743 // returns true if the packet is valid, false if end of file is reached
 744 // used for dumping the CSQC download into demo files
 745 qboolean MakeDownloadPacket(const char *filename, unsigned char *data, unsigned long len, int crc, int cnt, sizebuf_t *buf, int protocol)
 746 {
 747         int packetsize = buf->maxsize - 7; // byte short long
 748         int npackets = (len + packetsize - 1) / (packetsize);
 749
 750         if(protocol == PROTOCOL_QUAKEWORLD)
 751                 return false; // CSQC can't run in QW anyway
 752
 753         SZ_Clear(buf);
 754         if(cnt == 0)
 755         {
 756                 MSG_WriteByte(buf, svc_stufftext);
 757                 MSG_WriteString(buf, va("\ncl_downloadbegin %lu %s\n", len, filename));
 758                 return true;
 759         }
 760         else if(cnt >= 1 && cnt <= npackets)
 761         {
 762                 unsigned long thispacketoffset = (cnt - 1) * packetsize;
 763                 int thispacketsize = len - thispacketoffset;
 764                 if(thispacketsize > packetsize)
 765                         thispacketsize = packetsize;
 766
 767                 MSG_WriteByte(buf, svc_downloaddata);
 768                 MSG_WriteLong(buf, thispacketoffset);
 769                 MSG_WriteShort(buf, thispacketsize);
 770                 SZ_Write(buf, data + thispacketoffset, thispacketsize);
 771
 772                 return true;
 773         }
 774         else if(cnt == npackets + 1)
 775         {
 776                 MSG_WriteByte(buf, svc_stufftext);
 777                 MSG_WriteString(buf, va("\ncl_downloadfinished %lu %d\n", len, crc));
 778                 return true;
 779         }
 780         return false;
 781 }
 782
 783 void CL_VM_Init (void)
 784 {
 785         const char* csprogsfn;
 786         unsigned char *csprogsdata;
 787         fs_offset_t csprogsdatasize;
 788         int csprogsdatacrc, requiredcrc;
 789         int requiredsize;
 790         prvm_eval_t *val;
 791
 792         // reset csqc_progcrc after reading it, so that changing servers doesn't
 793         // expect csqc on the next server
 794         requiredcrc = csqc_progcrc.integer;
 795         requiredsize = csqc_progsize.integer;
 796         Cvar_SetValueQuick(&csqc_progcrc, -1);
 797         Cvar_SetValueQuick(&csqc_progsize, -1);
 798
 799         // if the server is not requesting a csprogs, then we're done here
 800         if (requiredcrc < 0)
 801                 return;
 802
 803         // see if the requested csprogs.dat file matches the requested crc
 804         csprogsdatacrc = -1;
 805         csprogsfn = va("dlcache/%s.%i.%i", csqc_progname.string, requiredsize, requiredcrc);
 806         csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
 807         if (!csprogsdata)
 808         {
 809                 csprogsfn = csqc_progname.string;
 810                 csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
 811         }
 812         if (csprogsdata)
 813         {
 814                 csprogsdatacrc = CRC_Block(csprogsdata, csprogsdatasize);
 815                 if (csprogsdatacrc != requiredcrc || csprogsdatasize != requiredsize)
 816                 {
 817                         if (cls.demoplayback)
 818                         {
 819                                 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);
 820                                 // Mem_Free(csprogsdata);
 821                                 // return;
 822                                 // We WANT to continue here, and play the demo with different csprogs!
 823                                 // After all, this is just a warning. Sure things may go wrong from here.
 824                         }
 825                         else
 826                         {
 827                                 Mem_Free(csprogsdata);
 828                                 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);
 829                                 CL_Disconnect();
 830                                 return;
 831                         }
 832                 }
 833         }
 834         else
 835         {
 836                 if (requiredcrc >= 0)
 837                 {
 838                         if (cls.demoplayback)
 839                                 Con_Printf("CL_VM_Init: demo requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 840                         else
 841                                 Con_Printf("CL_VM_Init: server requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 842                         CL_Disconnect();
 843                 }
 844                 return;
 845         }
 846
 847         PRVM_Begin;
 848         PRVM_InitProg(PRVM_CLIENTPROG);
 849
 850         // allocate the mempools
 851         prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
 852         prog->headercrc = CL_PROGHEADER_CRC;
 853         prog->edictprivate_size = 0; // no private struct used
 854         prog->name = CL_NAME;
 855         prog->num_edicts = 1;
 856         prog->max_edicts = 512;
 857         prog->limit_edicts = CL_MAX_EDICTS;
 858         prog->reserved_edicts = 0;
 859         prog->edictprivate_size = sizeof(edict_engineprivate_t);
 860         // TODO: add a shared extension string #define and add real support for csqc extension strings [12/5/2007 Black]
 861         prog->extensionstring = vm_sv_extensions;
 862         prog->builtins = vm_cl_builtins;
 863         prog->numbuiltins = vm_cl_numbuiltins;
 864         prog->begin_increase_edicts = CL_VM_CB_BeginIncreaseEdicts;
 865         prog->end_increase_edicts = CL_VM_CB_EndIncreaseEdicts;
 866         prog->init_edict = CL_VM_CB_InitEdict;
 867         prog->free_edict = CL_VM_CB_FreeEdict;
 868         prog->count_edicts = CL_VM_CB_CountEdicts;
 869         prog->load_edict = CL_VM_CB_LoadEdict;
 870         prog->init_cmd = VM_CL_Cmd_Init;
 871         prog->reset_cmd = VM_CL_Cmd_Reset;
 872         prog->error_cmd = CL_VM_Error;
 873
 874         PRVM_LoadProgs(csprogsfn, cl_numrequiredfunc, cl_required_func, 0, NULL, 0, NULL);
 875
 876         if (!prog->loaded)
 877         {
 878                 CL_VM_Error("CSQC %s ^2failed to load\n", csprogsfn);
 879                 if(!sv.active)
 880                         CL_Disconnect();
 881                 Mem_Free(csprogsdata);
 882                 return;
 883         }
 884
 885         Con_Printf("CSQC %s ^5loaded (crc=%i, size=%i)\n", csprogsfn, csprogsdatacrc, (int)csprogsdatasize);
 886
 887         if(cls.demorecording)
 888         {
 889                 if(cls.demo_lastcsprogssize != csprogsdatasize || cls.demo_lastcsprogscrc != csprogsdatacrc)
 890                 {
 891                         int i;
 892                         char buf[NET_MAXMESSAGE];
 893                         sizebuf_t sb;
 894                         unsigned char *demobuf; fs_offset_t demofilesize;
 895
 896                         sb.data = (unsigned char *) buf;
 897                         sb.maxsize = sizeof(buf);
 898                         i = 0;
 899
 900                         CL_CutDemo(&demobuf, &demofilesize);
 901                         while(MakeDownloadPacket(csqc_progname.string, csprogsdata, csprogsdatasize, csprogsdatacrc, i++, &sb, cls.protocol))
 902                                 CL_WriteDemoMessage(&sb);
 903                         CL_PasteDemo(&demobuf, &demofilesize);
 904
 905                         cls.demo_lastcsprogssize = csprogsdatasize;
 906                         cls.demo_lastcsprogscrc = csprogsdatacrc;
 907                 }
 908         }
 909         Mem_Free(csprogsdata);
 910
 911         // check if OP_STATE animation is possible in this dat file
 912         if (prog->fieldoffsets.nextthink >= 0 && prog->fieldoffsets.frame >= 0 && prog->fieldoffsets.think >= 0 && prog->globaloffsets.self >= 0)
 913                 prog->flag |= PRVM_OP_STATE;
 914
 915         // set time
 916         prog->globals.client->time = cl.time;
 917         prog->globals.client->self = 0;
 918
 919         prog->globals.client->mapname = cl.worldmodel ? PRVM_SetEngineString(cl.worldmodel->name) : PRVM_SetEngineString("");
 920         prog->globals.client->player_localentnum = cl.playerentity;
 921
 922         // set map description (use world entity 0)
 923         val = PRVM_EDICTFIELDVALUE(prog->edicts, prog->fieldoffsets.message);
 924         if(val)
 925                 val->string = PRVM_SetEngineString(cl.levelname);
 926         VectorCopy(cl.world.mins, prog->edicts->fields.client->mins);
 927         VectorCopy(cl.world.maxs, prog->edicts->fields.client->maxs);
 928
 929         // call the prog init
 930         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Init, "QC function CSQC_Init is missing");
 931
 932         PRVM_End;
 933         cl.csqc_loaded = true;
 934
 935         cl.csqc_vidvars.drawcrosshair = false;
 936         cl.csqc_vidvars.drawenginesbar = false;
 937
 938         // Update Coop and Deathmatch Globals (at this point the client knows them from ServerInfo)
 939         CL_VM_UpdateCoopDeathmatchGlobals(cl.gametype);
 940 }
 941
 942 void CL_VM_ShutDown (void)
 943 {
 944         Cmd_ClearCsqcFuncs();
 945         //Cvar_SetValueQuick(&csqc_progcrc, -1);
 946         //Cvar_SetValueQuick(&csqc_progsize, -1);
 947         if(!cl.csqc_loaded)
 948                 return;
 949         CSQC_BEGIN
 950                 prog->globals.client->time = cl.time;
 951                 prog->globals.client->self = 0;
 952                 if (prog->funcoffsets.CSQC_Shutdown)
 953                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Shutdown, "QC function CSQC_Shutdown is missing");
 954                 PRVM_ResetProg();
 955         CSQC_END
 956         Con_Print("CSQC ^1unloaded\n");
 957         cl.csqc_loaded = false;
 958 }
 959
 960 qboolean CL_VM_GetEntitySoundOrigin(int entnum, vec3_t out)
 961 {
 962         prvm_edict_t *ed;
 963         dp_model_t *mod;
 964         matrix4x4_t matrix;
 965         qboolean r = 0;
 966
 967         CSQC_BEGIN;
 968
 969         // FIXME consider attachments here!
 970
 971         ed = PRVM_EDICT_NUM(entnum - 32768);
 972
 973         if(!ed->priv.required->free)
 974         {
 975                 mod = CL_GetModelFromEdict(ed);
 976                 VectorCopy(ed->fields.client->origin, out);
 977                 if(CL_GetTagMatrix (&matrix, ed, 0) == 0)
 978                         Matrix4x4_OriginFromMatrix(&matrix, out);
 979                 if (mod && mod->soundfromcenter)
 980                         VectorMAMAM(1.0f, out, 0.5f, mod->normalmins, 0.5f, mod->normalmaxs, out);
 981                 r = 1;
 982         }
 983
 984         CSQC_END;
 985
 986         return r;
 987 }