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 void CL_VM_PreventInformationLeaks(void)
  20 {
  21         prvm_eval_t *val;
  22         if(!cl.csqc_loaded)
  23                 return;
  24         CSQC_BEGIN
  25                 VM_ClearTraceGlobals();
  26                 if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_networkentity)))
  27                         val->_float = 0;
  28         CSQC_END
  29 }
  30
  31 //[515]: these are required funcs
  32 static char *cl_required_func[] =
  33 {
  34         "CSQC_Init",
  35         "CSQC_InputEvent",
  36         "CSQC_UpdateView",
  37         "CSQC_ConsoleCommand",
  38 };
  39
  40 static int cl_numrequiredfunc = sizeof(cl_required_func) / sizeof(char*);
  41
  42 void CL_VM_Error (const char *format, ...) DP_FUNC_PRINTF(1);
  43 void CL_VM_Error (const char *format, ...)      //[515]: hope it will be never executed =)
  44 {
  45         char errorstring[4096];
  46         va_list argptr;
  47
  48         va_start (argptr, format);
  49         dpvsnprintf (errorstring, sizeof(errorstring), format, argptr);
  50         va_end (argptr);
  51 //      Con_Printf( "CL_VM_Error: %s\n", errorstring );
  52
  53         PRVM_Crash();
  54         cl.csqc_loaded = false;
  55
  56         Cvar_SetValueQuick(&csqc_progcrc, -1);
  57         Cvar_SetValueQuick(&csqc_progsize, -1);
  58
  59 //      Host_AbortCurrentFrame();       //[515]: hmmm... if server says it needs csqc then client MUST disconnect
  60         Host_Error("CL_VM_Error: %s", errorstring);
  61 }
  62 void CL_VM_UpdateDmgGlobals (int dmg_take, int dmg_save, vec3_t dmg_origin)
  63 {
  64         prvm_eval_t *val;
  65         if(cl.csqc_loaded)
  66         {
  67                 CSQC_BEGIN
  68                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_take);
  69                 if(val)
  70                         val->_float = dmg_take;
  71                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_save);
  72                 if(val)
  73                         val->_float = dmg_save;
  74                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_origin);
  75                 if(val)
  76                 {
  77                         val->vector[0] = dmg_origin[0];
  78                         val->vector[1] = dmg_origin[1];
  79                         val->vector[2] = dmg_origin[2];
  80                 }
  81                 CSQC_END
  82         }
  83 }
  84
  85 void CSQC_UpdateNetworkTimes(double newtime, double oldtime)
  86 {
  87         prvm_eval_t *val;
  88         if(!cl.csqc_loaded)
  89                 return;
  90         CSQC_BEGIN
  91         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.servertime)))
  92                 val->_float = newtime;
  93         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.serverprevtime)))
  94                 val->_float = oldtime;
  95         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.serverdeltatime)))
  96                 val->_float = newtime - oldtime;
  97         CSQC_END
  98 }
  99
 100 //[515]: set globals before calling R_UpdateView, WEIRD CRAP
 101 static void CSQC_SetGlobals (void)
 102 {
 103         prvm_eval_t *val;
 104         CSQC_BEGIN
 105                 prog->globals.client->time = cl.time;
 106                 prog->globals.client->frametime = max(0, cl.time - cl.oldtime);
 107                 prog->globals.client->servercommandframe = cls.servermovesequence;
 108                 prog->globals.client->clientcommandframe = cl.movecmd[0].sequence;
 109                 VectorCopy(cl.viewangles, prog->globals.client->input_angles);
 110                 VectorCopy(cl.viewangles, cl.csqc_angles);
 111                 // // FIXME: this actually belongs into getinputstate().. [12/17/2007 Black]
 112                 prog->globals.client->input_buttons = cl.movecmd[0].buttons;
 113                 VectorSet(prog->globals.client->input_movevalues, cl.movecmd[0].forwardmove, cl.movecmd[0].sidemove, cl.movecmd[0].upmove);
 114                 //VectorCopy(cl.movement_origin, cl.csqc_origin);
 115                 Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, cl.csqc_origin);
 116
 117                 // LordHavoc: Spike says not to do this, but without pmove_org the
 118                 // CSQC is useless as it can't alter the view origin without
 119                 // completely replacing it
 120                 VectorCopy(cl.csqc_origin, prog->globals.client->pmove_org);
 121                 VectorCopy(cl.movement_velocity, prog->globals.client->pmove_vel);
 122
 123                 if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.view_angles)))
 124                         VectorCopy(cl.viewangles, val->vector);
 125                 prog->globals.client->maxclients = cl.maxclients;
 126         CSQC_END
 127 }
 128
 129 void CSQC_Predraw (prvm_edict_t *ed)
 130 {
 131         int b;
 132         if(!ed->fields.client->predraw)
 133                 return;
 134         b = prog->globals.client->self;
 135         prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 136         PRVM_ExecuteProgram(ed->fields.client->predraw, "CSQC_Predraw: NULL function\n");
 137         prog->globals.client->self = b;
 138 }
 139
 140 void CSQC_Think (prvm_edict_t *ed)
 141 {
 142         int b;
 143         if(ed->fields.client->think)
 144         if(ed->fields.client->nextthink && ed->fields.client->nextthink <= prog->globals.client->time)
 145         {
 146                 ed->fields.client->nextthink = 0;
 147                 b = prog->globals.client->self;
 148                 prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 149                 PRVM_ExecuteProgram(ed->fields.client->think, "CSQC_Think: NULL function\n");
 150                 prog->globals.client->self = b;
 151         }
 152 }
 153
 154 extern cvar_t cl_noplayershadow;
 155 qboolean CSQC_AddRenderEdict(prvm_edict_t *ed)
 156 {
 157         int renderflags;
 158         int c;
 159         float scale;
 160         prvm_eval_t *val;
 161         entity_render_t *entrender;
 162         dp_model_t *model;
 163         matrix4x4_t tagmatrix, matrix2;
 164
 165         model = CL_GetModelFromEdict(ed);
 166         if (!model)
 167                 return false;
 168
 169         entrender = CL_NewTempEntity(0);
 170         if (!entrender)
 171                 return false;
 172
 173         entrender->model = model;
 174         entrender->skinnum = (int)ed->fields.client->skin;
 175         entrender->effects |= entrender->model->effects;
 176         scale = 1;
 177         renderflags = 0;
 178         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.renderflags)) && val->_float)     renderflags = (int)val->_float;
 179         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.alpha)) && val->_float)           entrender->alpha = val->_float;
 180         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.scale)) && val->_float)           entrender->scale = scale = val->_float;
 181         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.colormod)) && VectorLength2(val->vector)) VectorCopy(val->vector, entrender->colormod);
 182         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.effects)) && val->_float) entrender->effects |= (int)val->_float;
 183         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_entity)) && val->edict)
 184         {
 185                 int tagentity;
 186                 int tagindex = 0;
 187                 tagentity = val->edict;
 188                 if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_index)) && val->_float)
 189                         tagindex = (int)val->_float;
 190                 CL_GetTagMatrix (&tagmatrix, PRVM_PROG_TO_EDICT(tagentity), tagindex);
 191         }
 192         else
 193                 Matrix4x4_CreateIdentity(&tagmatrix);
 194
 195         if (renderflags & RF_USEAXIS)
 196         {
 197                 vec3_t left;
 198                 VectorNegate(prog->globals.client->v_right, left);
 199                 Matrix4x4_FromVectors(&matrix2, prog->globals.client->v_forward, left, prog->globals.client->v_up, ed->fields.client->origin);
 200                 Matrix4x4_Scale(&matrix2, scale, 1);
 201         }
 202         else
 203         {
 204                 vec3_t angles;
 205                 VectorCopy(ed->fields.client->angles, angles);
 206                 // if model is alias, reverse pitch direction
 207                 if (entrender->model->type == mod_alias)
 208                         angles[0] = -angles[0];
 209
 210                 // set up the render matrix
 211                 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);
 212         }
 213
 214         // set up the animation data
 215         // self.frame is the interpolation target (new frame)
 216         // self.frame1time is the animation base time for the interpolation target
 217         // self.frame2 is the interpolation start (previous frame)
 218         // self.frame2time is the animation base time for the interpolation start
 219         // self.lerpfrac is the interpolation strength for self.frame
 220         // 3+ are for additional blends (the main use for this feature is lerping
 221         // pitch angle on a player model where the animator set up 5 sets of
 222         // animations and the csqc simply lerps between sets)
 223         entrender->framegroupblend[0].frame = entrender->framegroupblend[1].frame = (int) ed->fields.client->frame;
 224         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2))) entrender->framegroupblend[1].frame = (int) val->_float;
 225         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame3))) entrender->framegroupblend[2].frame = (int) val->_float;
 226         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame4))) entrender->framegroupblend[3].frame = (int) val->_float;
 227         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame1time))) entrender->framegroupblend[0].start = val->_float;
 228         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2time))) entrender->framegroupblend[1].start = val->_float;
 229         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame3time))) entrender->framegroupblend[2].start = val->_float;
 230         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame4time))) entrender->framegroupblend[3].start = val->_float;
 231         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac))) entrender->framegroupblend[0].lerp = val->_float;
 232         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac3))) entrender->framegroupblend[2].lerp = val->_float;
 233         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac4))) entrender->framegroupblend[3].lerp = val->_float;
 234         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.shadertime))) entrender->shadertime = val->_float;
 235         // assume that the (missing) lerpfrac2 is whatever remains after lerpfrac+lerpfrac3+lerpfrac4 are summed
 236         entrender->framegroupblend[1].lerp = 1 - entrender->framegroupblend[0].lerp - entrender->framegroupblend[2].lerp - entrender->framegroupblend[3].lerp;
 237
 238         // concat the matrices to make the entity relative to its tag
 239         Matrix4x4_Concat(&entrender->matrix, &tagmatrix, &matrix2);
 240
 241         if(renderflags)
 242         {
 243                 if(renderflags & RF_VIEWMODEL)  entrender->flags |= RENDER_VIEWMODEL;
 244                 if(renderflags & RF_EXTERNALMODEL)entrender->flags |= RENDER_EXTERIORMODEL;
 245                 if(renderflags & RF_DEPTHHACK)  entrender->effects |= EF_NODEPTHTEST;
 246                 if(renderflags & RF_ADDITIVE)           entrender->effects |= EF_ADDITIVE;
 247         }
 248
 249         c = (int)ed->fields.client->colormap;
 250         if (c <= 0)
 251                 CL_SetEntityColormapColors(entrender, -1);
 252         else if (c <= cl.maxclients && cl.scores != NULL)
 253                 CL_SetEntityColormapColors(entrender, cl.scores[c-1].colors);
 254         else
 255                 CL_SetEntityColormapColors(entrender, c);
 256
 257         entrender->flags &= ~(RENDER_SHADOW | RENDER_LIGHT | RENDER_NOSELFSHADOW);
 258         // either fullbright or lit
 259         if (!(entrender->effects & EF_FULLBRIGHT) && !r_fullbright.integer)
 260                 entrender->flags |= RENDER_LIGHT;
 261         // hide player shadow during intermission or nehahra movie
 262         if (!(entrender->effects & (EF_NOSHADOW | EF_ADDITIVE | EF_NODEPTHTEST))
 263          &&  (entrender->alpha >= 1)
 264          && !(entrender->flags & RENDER_VIEWMODEL)
 265          && (!(entrender->flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 266                 entrender->flags |= RENDER_SHADOW;
 267         if (entrender->flags & RENDER_VIEWMODEL)
 268                 entrender->flags |= RENDER_NOSELFSHADOW;
 269         if (entrender->effects & EF_NOSELFSHADOW)
 270                 entrender->flags |= RENDER_NOSELFSHADOW;
 271
 272         // make the other useful stuff
 273         CL_UpdateRenderEntity(entrender);
 274
 275         return true;
 276 }
 277
 278 qboolean CL_VM_InputEvent (qboolean down, int key, int ascii)
 279 {
 280         qboolean r;
 281
 282         if(!cl.csqc_loaded)
 283                 return false;
 284
 285         CSQC_BEGIN
 286                 if (!prog->funcoffsets.CSQC_InputEvent)
 287                         r = false;
 288                 else
 289                 {
 290                         prog->globals.client->time = cl.time;
 291                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 292                         PRVM_G_FLOAT(OFS_PARM0) = !down; // 0 is down, 1 is up
 293                         PRVM_G_FLOAT(OFS_PARM1) = key;
 294                         PRVM_G_FLOAT(OFS_PARM2) = ascii;
 295                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_InputEvent, "QC function CSQC_InputEvent is missing");
 296                         r = CSQC_RETURNVAL != 0;
 297                 }
 298         CSQC_END
 299         return r;
 300 }
 301
 302 qboolean CL_VM_UpdateView (void)
 303 {
 304         vec3_t emptyvector;
 305         emptyvector[0] = 0;
 306         emptyvector[1] = 0;
 307         emptyvector[2] = 0;
 308 //      vec3_t oldangles;
 309         if(!cl.csqc_loaded)
 310                 return false;
 311         CSQC_BEGIN
 312                 //VectorCopy(cl.viewangles, oldangles);
 313                 prog->globals.client->time = cl.time;
 314                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 315                 CSQC_SetGlobals();
 316                 // clear renderable entity and light lists to prevent crashes if the
 317                 // CSQC_UpdateView function does not call R_ClearScene as it should
 318                 r_refdef.scene.numentities = 0;
 319                 r_refdef.scene.numlights = 0;
 320                 // pass in width and height as parameters (EXT_CSQC_1)
 321                 PRVM_G_FLOAT(OFS_PARM0) = vid.width;
 322                 PRVM_G_FLOAT(OFS_PARM1) = vid.height;
 323                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_UpdateView, "QC function CSQC_UpdateView is missing");
 324                 //VectorCopy(oldangles, cl.viewangles);
 325                 // Dresk : Reset Dmg Globals Here
 326                 CL_VM_UpdateDmgGlobals(0, 0, emptyvector);
 327         CSQC_END
 328         return true;
 329 }
 330
 331 extern sizebuf_t vm_tempstringsbuf;
 332 qboolean CL_VM_ConsoleCommand (const char *cmd)
 333 {
 334         int restorevm_tempstringsbuf_cursize;
 335         qboolean r = false;
 336         if(!cl.csqc_loaded)
 337                 return false;
 338         CSQC_BEGIN
 339         if (prog->funcoffsets.CSQC_ConsoleCommand)
 340         {
 341                 prog->globals.client->time = cl.time;
 342                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 343                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 344                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(cmd);
 345                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_ConsoleCommand, "QC function CSQC_ConsoleCommand is missing");
 346                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 347                 r = CSQC_RETURNVAL != 0;
 348         }
 349         CSQC_END
 350         return r;
 351 }
 352
 353 qboolean CL_VM_Parse_TempEntity (void)
 354 {
 355         int                     t;
 356         qboolean        r = false;
 357         if(!cl.csqc_loaded)
 358                 return false;
 359         CSQC_BEGIN
 360         if(prog->funcoffsets.CSQC_Parse_TempEntity)
 361         {
 362                 t = msg_readcount;
 363                 prog->globals.client->time = cl.time;
 364                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 365                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_TempEntity, "QC function CSQC_Parse_TempEntity is missing");
 366                 r = CSQC_RETURNVAL != 0;
 367                 if(!r)
 368                 {
 369                         msg_readcount = t;
 370                         msg_badread = false;
 371                 }
 372         }
 373         CSQC_END
 374         return r;
 375 }
 376
 377 void CL_VM_Parse_StuffCmd (const char *msg)
 378 {
 379         int restorevm_tempstringsbuf_cursize;
 380         if(msg[0] == 'c')
 381         if(msg[1] == 's')
 382         if(msg[2] == 'q')
 383         if(msg[3] == 'c')
 384         {
 385                 // if this is setting a csqc variable, deprotect csqc_progcrc
 386                 // temporarily so that it can be set by the cvar command,
 387                 // and then reprotect it afterwards
 388                 int crcflags = csqc_progcrc.flags;
 389                 int sizeflags = csqc_progcrc.flags;
 390                 csqc_progcrc.flags &= ~CVAR_READONLY;
 391                 csqc_progsize.flags &= ~CVAR_READONLY;
 392                 Cmd_ExecuteString (msg, src_command);
 393                 csqc_progcrc.flags = crcflags;
 394                 csqc_progsize.flags = sizeflags;
 395                 return;
 396         }
 397
 398         if(cls.demoplayback)
 399         if(!strncmp(msg, "curl --clear_autodownload\ncurl --pak --forthismap --as ", 55))
 400         {
 401                 // special handling for map download commands
 402                 // run these commands IMMEDIATELY, instead of waiting for a client frame
 403                 // that way, there is no black screen when playing back demos
 404                 // I know this is a really ugly hack, but I can't think of any better way
 405                 // FIXME find the actual CAUSE of this, and make demo playback WAIT
 406                 // until all maps are loaded, then remove this hack
 407
 408                 char buf[MAX_INPUTLINE];
 409                 const char *p, *q;
 410                 size_t l;
 411
 412                 p = msg;
 413
 414                 for(;;)
 415                 {
 416                         q = strchr(p, '\n');
 417                         if(q)
 418                                 l = q - p;
 419                         else
 420                                 l = strlen(p);
 421                         if(l > sizeof(buf) - 1)
 422                                 l = sizeof(buf) - 1;
 423                         strlcpy(buf, p, l + 1); // strlcpy needs a + 1 as it includes the newline!
 424
 425                         Cmd_ExecuteString(buf, src_command);
 426
 427                         p += l;
 428                         if(*p == '\n')
 429                                 ++p; // skip the newline and continue
 430                         else
 431                                 break; // end of string or overflow
 432                 }
 433                 Cmd_ExecuteString("curl --clear_autodownload", src_command); // don't inhibit CSQC loading
 434                 return;
 435         }
 436
 437         if(!cl.csqc_loaded)
 438         {
 439                 Cbuf_AddText(msg);
 440                 return;
 441         }
 442         CSQC_BEGIN
 443         if(prog->funcoffsets.CSQC_Parse_StuffCmd)
 444         {
 445                 prog->globals.client->time = cl.time;
 446                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 447                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 448                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 449                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_StuffCmd, "QC function CSQC_Parse_StuffCmd is missing");
 450                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 451         }
 452         else
 453                 Cbuf_AddText(msg);
 454         CSQC_END
 455 }
 456
 457 static void CL_VM_Parse_Print (const char *msg)
 458 {
 459         int restorevm_tempstringsbuf_cursize;
 460         prog->globals.client->time = cl.time;
 461         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 462         restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 463         PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 464         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_Print, "QC function CSQC_Parse_Print is missing");
 465         vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 466 }
 467
 468 void CSQC_AddPrintText (const char *msg)
 469 {
 470         size_t i;
 471         if(!cl.csqc_loaded)
 472         {
 473                 Con_Print(msg);
 474                 return;
 475         }
 476         CSQC_BEGIN
 477         if(prog->funcoffsets.CSQC_Parse_Print)
 478         {
 479                 // FIXME: is this bugged?
 480                 i = strlen(msg)-1;
 481                 if(msg[i] != '\n' && msg[i] != '\r')
 482                 {
 483                         if(strlen(cl.csqc_printtextbuf)+i >= MAX_INPUTLINE)
 484                         {
 485                                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 486                                 cl.csqc_printtextbuf[0] = 0;
 487                         }
 488                         else
 489                                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 490                         return;
 491                 }
 492                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 493                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 494                 cl.csqc_printtextbuf[0] = 0;
 495         }
 496         else
 497                 Con_Print(msg);
 498         CSQC_END
 499 }
 500
 501 void CL_VM_Parse_CenterPrint (const char *msg)
 502 {
 503         int restorevm_tempstringsbuf_cursize;
 504         if(!cl.csqc_loaded)
 505         {
 506                 SCR_CenterPrint(msg);
 507                 return;
 508         }
 509         CSQC_BEGIN
 510         if(prog->funcoffsets.CSQC_Parse_CenterPrint)
 511         {
 512                 prog->globals.client->time = cl.time;
 513                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 514                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 515                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 516                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_CenterPrint, "QC function CSQC_Parse_CenterPrint is missing");
 517                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 518         }
 519         else
 520                 SCR_CenterPrint(msg);
 521         CSQC_END
 522 }
 523
 524 void CL_VM_UpdateIntermissionState (int intermission)
 525 {
 526         prvm_eval_t *val;
 527         if(cl.csqc_loaded)
 528         {
 529                 CSQC_BEGIN
 530                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.intermission);
 531                 if(val)
 532                         val->_float = intermission;
 533                 CSQC_END
 534         }
 535 }
 536 void CL_VM_UpdateShowingScoresState (int showingscores)
 537 {
 538         prvm_eval_t *val;
 539         if(cl.csqc_loaded)
 540         {
 541                 CSQC_BEGIN
 542                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.sb_showscores);
 543                 if(val)
 544                         val->_float = showingscores;
 545                 CSQC_END
 546         }
 547 }
 548 qboolean CL_VM_Event_Sound(int sound_num, float volume, int channel, float attenuation, int ent, vec3_t pos)
 549 {
 550         qboolean r = false;
 551         if(cl.csqc_loaded)
 552         {
 553                 CSQC_BEGIN
 554                 if(prog->funcoffsets.CSQC_Event_Sound)
 555                 {
 556                         prog->globals.client->time = cl.time;
 557                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 558                         PRVM_G_FLOAT(OFS_PARM0) = ent;
 559                         PRVM_G_FLOAT(OFS_PARM1) = channel;
 560                         PRVM_G_INT(OFS_PARM2) = PRVM_SetTempString(cl.sound_name[sound_num] );
 561                         PRVM_G_FLOAT(OFS_PARM3) = volume;
 562                         PRVM_G_FLOAT(OFS_PARM4) = attenuation;
 563                         VectorCopy(pos, PRVM_G_VECTOR(OFS_PARM5) );
 564                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event_Sound, "QC function CSQC_Event_Sound is missing");
 565                         r = CSQC_RETURNVAL != 0;
 566                 }
 567                 CSQC_END
 568         }
 569
 570         return r;
 571 }
 572 void CL_VM_UpdateCoopDeathmatchGlobals (int gametype)
 573 {
 574         // Avoid global names for clean(er) coding
 575         int localcoop;
 576         int localdeathmatch;
 577
 578         prvm_eval_t *val;
 579         if(cl.csqc_loaded)
 580         {
 581                 if(gametype == GAME_COOP)
 582                 {
 583                         localcoop = 1;
 584                         localdeathmatch = 0;
 585                 }
 586                 else
 587                 if(gametype == GAME_DEATHMATCH)
 588                 {
 589                         localcoop = 0;
 590                         localdeathmatch = 1;
 591                 }
 592                 else
 593                 {
 594                         // How did the ServerInfo send an unknown gametype?
 595                         // Better just assign the globals as 0...
 596                         localcoop = 0;
 597                         localdeathmatch = 0;
 598                 }
 599                 CSQC_BEGIN
 600                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.coop);
 601                 if(val)
 602                         val->_float = localcoop;
 603                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.deathmatch);
 604                 if(val)
 605                         val->_float = localdeathmatch;
 606                 CSQC_END
 607         }
 608 }
 609 float CL_VM_Event (float event)         //[515]: needed ? I'd say "YES", but don't know for what :D
 610 {
 611         float r = 0;
 612         if(!cl.csqc_loaded)
 613                 return 0;
 614         CSQC_BEGIN
 615         if(prog->funcoffsets.CSQC_Event)
 616         {
 617                 prog->globals.client->time = cl.time;
 618                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 619                 PRVM_G_FLOAT(OFS_PARM0) = event;
 620                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event, "QC function CSQC_Event is missing");
 621                 r = CSQC_RETURNVAL;
 622         }
 623         CSQC_END
 624         return r;
 625 }
 626
 627 void CSQC_ReadEntities (void)
 628 {
 629         unsigned short entnum, oldself, realentnum;
 630         if(!cl.csqc_loaded)
 631         {
 632                 Host_Error ("CSQC_ReadEntities: CSQC is not loaded");
 633                 return;
 634         }
 635
 636         CSQC_BEGIN
 637                 prog->globals.client->time = cl.time;
 638                 oldself = prog->globals.client->self;
 639                 while(1)
 640                 {
 641                         entnum = MSG_ReadShort();
 642                         if(!entnum || msg_badread)
 643                                 return;
 644                         realentnum = entnum & 0x7FFF;
 645                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum];
 646                         if(entnum & 0x8000)
 647                         {
 648                                 if(prog->globals.client->self)
 649                                 {
 650                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Remove, "QC function CSQC_Ent_Remove is missing");
 651                                         cl.csqc_server2csqcentitynumber[realentnum] = 0;
 652                                 }
 653                                 else
 654                                 {
 655                                         // LordHavoc: removing an entity that is already gone on
 656                                         // the csqc side is possible for legitimate reasons (such
 657                                         // as a repeat of the remove message), so no warning is
 658                                         // needed
 659                                         //Con_Printf("Bad csqc_server2csqcentitynumber map\n"); //[515]: never happens ?
 660                                 }
 661                         }
 662                         else
 663                         {
 664                                 if(!prog->globals.client->self)
 665                                 {
 666                                         if(!prog->funcoffsets.CSQC_Ent_Spawn)
 667                                         {
 668                                                 prvm_edict_t    *ed;
 669                                                 ed = PRVM_ED_Alloc();
 670                                                 ed->fields.client->entnum = realentnum;
 671                                                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT_TO_PROG(ed);
 672                                         }
 673                                         else
 674                                         {
 675                                                 // entity( float entnum ) CSQC_Ent_Spawn;
 676                                                 // the qc function should set entnum, too (this way it also can return world [2/1/2008 Andreas]
 677                                                 PRVM_G_FLOAT(OFS_PARM0) = (float) realentnum;
 678                                                 // make sure no one gets wrong ideas
 679                                                 prog->globals.client->self = 0;
 680                                                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Spawn, "QC function CSQC_Ent_Spawn is missing");
 681                                                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT( PRVM_G_INT( OFS_RETURN ) );
 682                                         }
 683                                         PRVM_G_FLOAT(OFS_PARM0) = 1;
 684                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 685                                 }
 686                                 else {
 687                                         PRVM_G_FLOAT(OFS_PARM0) = 0;
 688                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 689                                 }
 690                         }
 691                 }
 692                 prog->globals.client->self = oldself;
 693         CSQC_END
 694 }
 695
 696 void CL_VM_CB_BeginIncreaseEdicts(void)
 697 {
 698         // links don't survive the transition, so unlink everything
 699         World_UnlinkAll(&cl.world);
 700 }
 701
 702 void CL_VM_CB_EndIncreaseEdicts(void)
 703 {
 704         int i;
 705         prvm_edict_t *ent;
 706
 707         // link every entity except world
 708         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
 709                 if (!ent->priv.server->free)
 710                         CL_LinkEdict(ent);
 711 }
 712
 713 void CL_VM_CB_InitEdict(prvm_edict_t *e)
 714 {
 715         e->priv.server->move = false; // don't move on first frame
 716 }
 717
 718 void CL_VM_CB_FreeEdict(prvm_edict_t *ed)
 719 {
 720         World_UnlinkEdict(ed);
 721         memset(ed->fields.client, 0, sizeof(*ed->fields.client));
 722 }
 723
 724 void CL_VM_CB_CountEdicts(void)
 725 {
 726         int             i;
 727         prvm_edict_t    *ent;
 728         int             active = 0, models = 0, solid = 0;
 729
 730         for (i=0 ; i<prog->num_edicts ; i++)
 731         {
 732                 ent = PRVM_EDICT_NUM(i);
 733                 if (ent->priv.server->free)
 734                         continue;
 735                 active++;
 736                 if (ent->fields.client->solid)
 737                         solid++;
 738                 if (ent->fields.client->model)
 739                         models++;
 740         }
 741
 742         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
 743         Con_Printf("active    :%3i\n", active);
 744         Con_Printf("view      :%3i\n", models);
 745         Con_Printf("touch     :%3i\n", solid);
 746 }
 747
 748 qboolean CL_VM_CB_LoadEdict(prvm_edict_t *ent)
 749 {
 750         return true;
 751 }
 752
 753 void Cmd_ClearCsqcFuncs (void);
 754
 755 // returns true if the packet is valid, false if end of file is reached
 756 // used for dumping the CSQC download into demo files
 757 qboolean MakeDownloadPacket(const char *filename, unsigned char *data, unsigned long len, int crc, int cnt, sizebuf_t *buf, int protocol)
 758 {
 759         int packetsize = buf->maxsize - 7; // byte short long
 760         int npackets = (len + packetsize - 1) / (packetsize);
 761
 762         if(protocol == PROTOCOL_QUAKEWORLD)
 763                 return false; // CSQC can't run in QW anyway
 764
 765         SZ_Clear(buf);
 766         if(cnt == 0)
 767         {
 768                 MSG_WriteByte(buf, svc_stufftext);
 769                 MSG_WriteString(buf, va("\ncl_downloadbegin %lu %s\n", len, filename));
 770                 return true;
 771         }
 772         else if(cnt >= 1 && cnt <= npackets)
 773         {
 774                 unsigned long thispacketoffset = (cnt - 1) * packetsize;
 775                 int thispacketsize = len - thispacketoffset;
 776                 if(thispacketsize > packetsize)
 777                         thispacketsize = packetsize;
 778
 779                 MSG_WriteByte(buf, svc_downloaddata);
 780                 MSG_WriteLong(buf, thispacketoffset);
 781                 MSG_WriteShort(buf, thispacketsize);
 782                 SZ_Write(buf, data + thispacketoffset, thispacketsize);
 783
 784                 return true;
 785         }
 786         else if(cnt == npackets + 1)
 787         {
 788                 MSG_WriteByte(buf, svc_stufftext);
 789                 MSG_WriteString(buf, va("\ncl_downloadfinished %lu %d\n", len, crc));
 790                 return true;
 791         }
 792         return false;
 793 }
 794
 795 void CL_VM_Init (void)
 796 {
 797         const char* csprogsfn;
 798         unsigned char *csprogsdata;
 799         fs_offset_t csprogsdatasize;
 800         int csprogsdatacrc, requiredcrc;
 801         int requiredsize;
 802         prvm_eval_t *val;
 803
 804         // reset csqc_progcrc after reading it, so that changing servers doesn't
 805         // expect csqc on the next server
 806         requiredcrc = csqc_progcrc.integer;
 807         requiredsize = csqc_progsize.integer;
 808         Cvar_SetValueQuick(&csqc_progcrc, -1);
 809         Cvar_SetValueQuick(&csqc_progsize, -1);
 810
 811         // if the server is not requesting a csprogs, then we're done here
 812         if (requiredcrc < 0)
 813                 return;
 814
 815         // see if the requested csprogs.dat file matches the requested crc
 816         csprogsdatacrc = -1;
 817         csprogsfn = va("dlcache/%s.%i.%i", csqc_progname.string, requiredsize, requiredcrc);
 818         csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
 819         if (!csprogsdata)
 820         {
 821                 csprogsfn = csqc_progname.string;
 822                 csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
 823         }
 824         if (csprogsdata)
 825         {
 826                 csprogsdatacrc = CRC_Block(csprogsdata, csprogsdatasize);
 827                 if (csprogsdatacrc != requiredcrc || csprogsdatasize != requiredsize)
 828                 {
 829                         if (cls.demoplayback)
 830                         {
 831                                 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);
 832                                 // Mem_Free(csprogsdata);
 833                                 // return;
 834                                 // We WANT to continue here, and play the demo with different csprogs!
 835                                 // After all, this is just a warning. Sure things may go wrong from here.
 836                         }
 837                         else
 838                         {
 839                                 Mem_Free(csprogsdata);
 840                                 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);
 841                                 CL_Disconnect();
 842                                 return;
 843                         }
 844                 }
 845         }
 846         else
 847         {
 848                 if (requiredcrc >= 0)
 849                 {
 850                         if (cls.demoplayback)
 851                                 Con_Printf("CL_VM_Init: demo requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 852                         else
 853                                 Con_Printf("CL_VM_Init: server requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 854                         CL_Disconnect();
 855                 }
 856                 return;
 857         }
 858
 859         PRVM_Begin;
 860         PRVM_InitProg(PRVM_CLIENTPROG);
 861
 862         // allocate the mempools
 863         prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
 864         prog->headercrc = CL_PROGHEADER_CRC;
 865         prog->edictprivate_size = 0; // no private struct used
 866         prog->name = CL_NAME;
 867         prog->num_edicts = 1;
 868         prog->max_edicts = 512;
 869         prog->limit_edicts = CL_MAX_EDICTS;
 870         prog->reserved_edicts = 0;
 871         prog->edictprivate_size = sizeof(edict_engineprivate_t);
 872         // TODO: add a shared extension string #define and add real support for csqc extension strings [12/5/2007 Black]
 873         prog->extensionstring = vm_sv_extensions;
 874         prog->builtins = vm_cl_builtins;
 875         prog->numbuiltins = vm_cl_numbuiltins;
 876         prog->begin_increase_edicts = CL_VM_CB_BeginIncreaseEdicts;
 877         prog->end_increase_edicts = CL_VM_CB_EndIncreaseEdicts;
 878         prog->init_edict = CL_VM_CB_InitEdict;
 879         prog->free_edict = CL_VM_CB_FreeEdict;
 880         prog->count_edicts = CL_VM_CB_CountEdicts;
 881         prog->load_edict = CL_VM_CB_LoadEdict;
 882         prog->init_cmd = VM_CL_Cmd_Init;
 883         prog->reset_cmd = VM_CL_Cmd_Reset;
 884         prog->error_cmd = CL_VM_Error;
 885
 886         PRVM_LoadProgs(csprogsfn, cl_numrequiredfunc, cl_required_func, 0, NULL, 0, NULL);
 887
 888         if (!prog->loaded)
 889         {
 890                 CL_VM_Error("CSQC %s ^2failed to load\n", csprogsfn);
 891                 if(!sv.active)
 892                         CL_Disconnect();
 893                 Mem_Free(csprogsdata);
 894                 return;
 895         }
 896
 897         Con_Printf("CSQC %s ^5loaded (crc=%i, size=%i)\n", csprogsfn, csprogsdatacrc, (int)csprogsdatasize);
 898
 899         if(cls.demorecording)
 900         {
 901                 if(cls.demo_lastcsprogssize != csprogsdatasize || cls.demo_lastcsprogscrc != csprogsdatacrc)
 902                 {
 903                         int i;
 904                         char buf[NET_MAXMESSAGE];
 905                         sizebuf_t sb;
 906                         unsigned char *demobuf; fs_offset_t demofilesize;
 907
 908                         sb.data = (unsigned char *) buf;
 909                         sb.maxsize = sizeof(buf);
 910                         i = 0;
 911
 912                         CL_CutDemo(&demobuf, &demofilesize);
 913                         while(MakeDownloadPacket(csqc_progname.string, csprogsdata, csprogsdatasize, csprogsdatacrc, i++, &sb, cls.protocol))
 914                                 CL_WriteDemoMessage(&sb);
 915                         CL_PasteDemo(&demobuf, &demofilesize);
 916
 917                         cls.demo_lastcsprogssize = csprogsdatasize;
 918                         cls.demo_lastcsprogscrc = csprogsdatacrc;
 919                 }
 920         }
 921         Mem_Free(csprogsdata);
 922
 923         // check if OP_STATE animation is possible in this dat file
 924         if (prog->fieldoffsets.nextthink >= 0 && prog->fieldoffsets.frame >= 0 && prog->fieldoffsets.think >= 0 && prog->globaloffsets.self >= 0)
 925                 prog->flag |= PRVM_OP_STATE;
 926
 927         // set time
 928         prog->globals.client->time = cl.time;
 929         prog->globals.client->self = 0;
 930
 931         prog->globals.client->mapname = cl.worldmodel ? PRVM_SetEngineString(cl.worldmodel->name) : PRVM_SetEngineString("");
 932         prog->globals.client->player_localentnum = cl.playerentity;
 933
 934         // set map description (use world entity 0)
 935         val = PRVM_EDICTFIELDVALUE(prog->edicts, prog->fieldoffsets.message);
 936         if(val)
 937                 val->string = PRVM_SetEngineString(cl.levelname);
 938         VectorCopy(cl.world.mins, prog->edicts->fields.client->mins);
 939         VectorCopy(cl.world.maxs, prog->edicts->fields.client->maxs);
 940
 941         // call the prog init
 942         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Init, "QC function CSQC_Init is missing");
 943
 944         PRVM_End;
 945         cl.csqc_loaded = true;
 946
 947         cl.csqc_vidvars.drawcrosshair = false;
 948         cl.csqc_vidvars.drawenginesbar = false;
 949
 950         // Update Coop and Deathmatch Globals (at this point the client knows them from ServerInfo)
 951         CL_VM_UpdateCoopDeathmatchGlobals(cl.gametype);
 952 }
 953
 954 void CL_VM_ShutDown (void)
 955 {
 956         Cmd_ClearCsqcFuncs();
 957         //Cvar_SetValueQuick(&csqc_progcrc, -1);
 958         //Cvar_SetValueQuick(&csqc_progsize, -1);
 959         if(!cl.csqc_loaded)
 960                 return;
 961         CSQC_BEGIN
 962                 prog->globals.client->time = cl.time;
 963                 prog->globals.client->self = 0;
 964                 if (prog->funcoffsets.CSQC_Shutdown)
 965                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Shutdown, "QC function CSQC_Shutdown is missing");
 966                 PRVM_ResetProg();
 967         CSQC_END
 968         Con_Print("CSQC ^1unloaded\n");
 969         cl.csqc_loaded = false;
 970 }
 971
 972 qboolean CL_VM_GetEntitySoundOrigin(int entnum, vec3_t out)
 973 {
 974         prvm_edict_t *ed;
 975         dp_model_t *mod;
 976         matrix4x4_t matrix;
 977         qboolean r = 0;
 978
 979         CSQC_BEGIN;
 980
 981         // FIXME consider attachments here!
 982
 983         ed = PRVM_EDICT_NUM(entnum - 32768);
 984
 985         if(!ed->priv.required->free)
 986         {
 987                 mod = CL_GetModelFromEdict(ed);
 988                 VectorCopy(ed->fields.client->origin, out);
 989                 if(CL_GetTagMatrix (&matrix, ed, 0) == 0)
 990                         Matrix4x4_OriginFromMatrix(&matrix, out);
 991                 if (mod && mod->soundfromcenter)
 992                         VectorMAMAM(1.0f, out, 0.5f, mod->normalmins, 0.5f, mod->normalmaxs, out);
 993                 r = 1;
 994         }
 995
 996         CSQC_END;
 997
 998         return r;
 999 }