csprogs.c

   1 #include "quakedef.h"
   2 #include "progsvm.h"
   3 #include "clprogdefs.h"
   4 #include "csprogs.h"
   5 #include "cl_collision.h"
   6 #include "snd_main.h"
   7 #include "clvm_cmds.h"
   8 #include "prvm_cmds.h"
   9
  10 //============================================================================
  11 // Client prog handling
  12 //[515]: omg !!! optimize it ! a lot of hacks here and there also :P
  13
  14 #define CSQC_RETURNVAL  prog->globals.generic[OFS_RETURN]
  15 #define CSQC_BEGIN              csqc_tmpprog=prog;prog=0;PRVM_SetProg(PRVM_CLIENTPROG);
  16 #define CSQC_END                prog=csqc_tmpprog;
  17
  18 static prvm_prog_t *csqc_tmpprog;
  19
  20 void CL_VM_PreventInformationLeaks(void)
  21 {
  22         prvm_eval_t *val;
  23         if(!cl.csqc_loaded)
  24                 return;
  25         CSQC_BEGIN
  26                 VM_ClearTraceGlobals();
  27                 if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_networkentity)))
  28                         val->_float = 0;
  29         CSQC_END
  30 }
  31
  32 //[515]: these are required funcs
  33 static char *cl_required_func[] =
  34 {
  35         "CSQC_Init",
  36         "CSQC_InputEvent",
  37         "CSQC_UpdateView",
  38         "CSQC_ConsoleCommand",
  39 };
  40
  41 static int cl_numrequiredfunc = sizeof(cl_required_func) / sizeof(char*);
  42
  43 void CL_VM_Error (const char *format, ...) DP_FUNC_PRINTF(1);
  44 void CL_VM_Error (const char *format, ...)      //[515]: hope it will be never executed =)
  45 {
  46         char errorstring[4096];
  47         va_list argptr;
  48
  49         va_start (argptr, format);
  50         dpvsnprintf (errorstring, sizeof(errorstring), format, argptr);
  51         va_end (argptr);
  52 //      Con_Printf( "CL_VM_Error: %s\n", errorstring );
  53
  54         PRVM_Crash();
  55         cl.csqc_loaded = false;
  56
  57         Cvar_SetValueQuick(&csqc_progcrc, -1);
  58         Cvar_SetValueQuick(&csqc_progsize, -1);
  59
  60 //      Host_AbortCurrentFrame();       //[515]: hmmm... if server says it needs csqc then client MUST disconnect
  61         Host_Error("CL_VM_Error: %s", errorstring);
  62 }
  63 void CL_VM_UpdateDmgGlobals (int dmg_take, int dmg_save, vec3_t dmg_origin)
  64 {
  65         prvm_eval_t *val;
  66         if(cl.csqc_loaded)
  67         {
  68                 CSQC_BEGIN
  69                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_take);
  70                 if(val)
  71                         val->_float = dmg_take;
  72                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_save);
  73                 if(val)
  74                         val->_float = dmg_save;
  75                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_origin);
  76                 if(val)
  77                 {
  78                         val->vector[0] = dmg_origin[0];
  79                         val->vector[1] = dmg_origin[1];
  80                         val->vector[2] = dmg_origin[2];
  81                 }
  82                 CSQC_END
  83         }
  84 }
  85
  86 void CSQC_UpdateNetworkTimes(double newtime, double oldtime)
  87 {
  88         prvm_eval_t *val;
  89         if(!cl.csqc_loaded)
  90                 return;
  91         CSQC_BEGIN
  92         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.servertime)))
  93                 val->_float = newtime;
  94         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.serverprevtime)))
  95                 val->_float = oldtime;
  96         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.serverdeltatime)))
  97                 val->_float = newtime - oldtime;
  98         CSQC_END
  99 }
 100
 101 //[515]: set globals before calling R_UpdateView, WEIRD CRAP
 102 static void CSQC_SetGlobals (void)
 103 {
 104         prvm_eval_t *val;
 105         CSQC_BEGIN
 106                 prog->globals.client->time = cl.time;
 107                 prog->globals.client->frametime = max(0, cl.time - cl.oldtime);
 108                 prog->globals.client->servercommandframe = cls.servermovesequence;
 109                 prog->globals.client->clientcommandframe = cl.movecmd[0].sequence;
 110                 VectorCopy(cl.viewangles, prog->globals.client->input_angles);
 111                 VectorCopy(cl.viewangles, cl.csqc_angles);
 112                 // // FIXME: this actually belongs into getinputstate().. [12/17/2007 Black]
 113                 prog->globals.client->input_buttons = cl.movecmd[0].buttons;
 114                 VectorSet(prog->globals.client->input_movevalues, cl.movecmd[0].forwardmove, cl.movecmd[0].sidemove, cl.movecmd[0].upmove);
 115                 //VectorCopy(cl.movement_origin, cl.csqc_origin);
 116                 Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, cl.csqc_origin);
 117
 118                 // LordHavoc: Spike says not to do this, but without pmove_org the
 119                 // CSQC is useless as it can't alter the view origin without
 120                 // completely replacing it
 121                 VectorCopy(cl.csqc_origin, prog->globals.client->pmove_org);
 122                 VectorCopy(cl.movement_velocity, prog->globals.client->pmove_vel);
 123
 124                 if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.view_angles)))
 125                         VectorCopy(cl.viewangles, val->vector);
 126                 prog->globals.client->maxclients = cl.maxclients;
 127         CSQC_END
 128 }
 129
 130 void CSQC_Predraw (prvm_edict_t *ed)
 131 {
 132         int b;
 133         if(!ed->fields.client->predraw)
 134                 return;
 135         b = prog->globals.client->self;
 136         prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 137         PRVM_ExecuteProgram(ed->fields.client->predraw, "CSQC_Predraw: NULL function\n");
 138         prog->globals.client->self = b;
 139 }
 140
 141 void CSQC_Think (prvm_edict_t *ed)
 142 {
 143         int b;
 144         if(ed->fields.client->think)
 145         if(ed->fields.client->nextthink && ed->fields.client->nextthink <= prog->globals.client->time)
 146         {
 147                 ed->fields.client->nextthink = 0;
 148                 b = prog->globals.client->self;
 149                 prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 150                 PRVM_ExecuteProgram(ed->fields.client->think, "CSQC_Think: NULL function\n");
 151                 prog->globals.client->self = b;
 152         }
 153 }
 154
 155 extern cvar_t cl_noplayershadow;
 156 qboolean CSQC_AddRenderEdict(prvm_edict_t *ed)
 157 {
 158         int renderflags;
 159         int c;
 160         float scale;
 161         prvm_eval_t *val;
 162         entity_render_t *entrender;
 163         dp_model_t *model;
 164         matrix4x4_t tagmatrix, matrix2;
 165
 166         model = CL_GetModelFromEdict(ed);
 167         if (!model)
 168                 return false;
 169
 170         entrender = CL_NewTempEntity(0);
 171         if (!entrender)
 172                 return false;
 173
 174         entrender->model = model;
 175         entrender->skinnum = (int)ed->fields.client->skin;
 176         entrender->effects |= entrender->model->effects;
 177         scale = 1;
 178         renderflags = 0;
 179         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.renderflags)) && val->_float)     renderflags = (int)val->_float;
 180         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.alpha)) && val->_float)           entrender->alpha = val->_float;
 181         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.scale)) && val->_float)           entrender->scale = scale = val->_float;
 182         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.colormod)) && VectorLength2(val->vector)) VectorCopy(val->vector, entrender->colormod);
 183         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.glowmod)) && VectorLength2(val->vector))  VectorCopy(val->vector, entrender->glowmod);
 184         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.effects)) && val->_float) entrender->effects |= (int)val->_float;
 185         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_entity)) && val->edict)
 186         {
 187                 int tagentity;
 188                 int tagindex = 0;
 189                 tagentity = val->edict;
 190                 if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_index)) && val->_float)
 191                         tagindex = (int)val->_float;
 192                 CL_GetTagMatrix (&tagmatrix, PRVM_PROG_TO_EDICT(tagentity), tagindex);
 193         }
 194         else
 195                 Matrix4x4_CreateIdentity(&tagmatrix);
 196         if (!VectorLength2(entrender->colormod))
 197                 VectorSet(entrender->colormod, 1, 1, 1);
 198         if (!VectorLength2(entrender->glowmod))
 199                 VectorSet(entrender->glowmod, 1, 1, 1);
 200
 201         if (renderflags & RF_USEAXIS)
 202         {
 203                 vec3_t left;
 204                 VectorNegate(prog->globals.client->v_right, left);
 205                 Matrix4x4_FromVectors(&matrix2, prog->globals.client->v_forward, left, prog->globals.client->v_up, ed->fields.client->origin);
 206                 Matrix4x4_Scale(&matrix2, scale, 1);
 207         }
 208         else
 209         {
 210                 vec3_t angles;
 211                 VectorCopy(ed->fields.client->angles, angles);
 212                 // if model is alias, reverse pitch direction
 213                 if (entrender->model->type == mod_alias)
 214                         angles[0] = -angles[0];
 215
 216                 // set up the render matrix
 217                 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);
 218         }
 219
 220         // set up the animation data
 221         // self.frame is the interpolation target (new frame)
 222         // self.frame1time is the animation base time for the interpolation target
 223         // self.frame2 is the interpolation start (previous frame)
 224         // self.frame2time is the animation base time for the interpolation start
 225         // self.lerpfrac is the interpolation strength for self.frame
 226         // 3+ are for additional blends (the main use for this feature is lerping
 227         // pitch angle on a player model where the animator set up 5 sets of
 228         // animations and the csqc simply lerps between sets)
 229         entrender->framegroupblend[0].frame = entrender->framegroupblend[1].frame = (int) ed->fields.client->frame;
 230         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2))) entrender->framegroupblend[1].frame = (int) val->_float;
 231         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame3))) entrender->framegroupblend[2].frame = (int) val->_float;
 232         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame4))) entrender->framegroupblend[3].frame = (int) val->_float;
 233         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame1time))) entrender->framegroupblend[0].start = val->_float;
 234         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2time))) entrender->framegroupblend[1].start = val->_float;
 235         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame3time))) entrender->framegroupblend[2].start = val->_float;
 236         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame4time))) entrender->framegroupblend[3].start = val->_float;
 237         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac))) entrender->framegroupblend[0].lerp = val->_float;
 238         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac3))) entrender->framegroupblend[2].lerp = val->_float;
 239         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac4))) entrender->framegroupblend[3].lerp = val->_float;
 240         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.shadertime))) entrender->shadertime = val->_float;
 241         // assume that the (missing) lerpfrac2 is whatever remains after lerpfrac+lerpfrac3+lerpfrac4 are summed
 242         entrender->framegroupblend[1].lerp = 1 - entrender->framegroupblend[0].lerp - entrender->framegroupblend[2].lerp - entrender->framegroupblend[3].lerp;
 243
 244         // concat the matrices to make the entity relative to its tag
 245         Matrix4x4_Concat(&entrender->matrix, &tagmatrix, &matrix2);
 246
 247         if(renderflags)
 248         {
 249                 if(renderflags & RF_VIEWMODEL)  entrender->flags |= RENDER_VIEWMODEL;
 250                 if(renderflags & RF_EXTERNALMODEL)entrender->flags |= RENDER_EXTERIORMODEL;
 251                 if(renderflags & RF_DEPTHHACK)  entrender->effects |= EF_NODEPTHTEST;
 252                 if(renderflags & RF_ADDITIVE)           entrender->effects |= EF_ADDITIVE;
 253         }
 254
 255         c = (int)ed->fields.client->colormap;
 256         if (c <= 0)
 257                 CL_SetEntityColormapColors(entrender, -1);
 258         else if (c <= cl.maxclients && cl.scores != NULL)
 259                 CL_SetEntityColormapColors(entrender, cl.scores[c-1].colors);
 260         else
 261                 CL_SetEntityColormapColors(entrender, c);
 262
 263         entrender->flags &= ~(RENDER_SHADOW | RENDER_LIGHT | RENDER_NOSELFSHADOW);
 264         // either fullbright or lit
 265         if (!(entrender->effects & EF_FULLBRIGHT) && !r_fullbright.integer)
 266                 entrender->flags |= RENDER_LIGHT;
 267         // hide player shadow during intermission or nehahra movie
 268         if (!(entrender->effects & (EF_NOSHADOW | EF_ADDITIVE | EF_NODEPTHTEST))
 269          &&  (entrender->alpha >= 1)
 270          && !(entrender->flags & RENDER_VIEWMODEL)
 271          && (!(entrender->flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 272                 entrender->flags |= RENDER_SHADOW;
 273         if (entrender->flags & RENDER_VIEWMODEL)
 274                 entrender->flags |= RENDER_NOSELFSHADOW;
 275         if (entrender->effects & EF_NOSELFSHADOW)
 276                 entrender->flags |= RENDER_NOSELFSHADOW;
 277
 278         // make the other useful stuff
 279         CL_UpdateRenderEntity(entrender);
 280
 281         return true;
 282 }
 283
 284 qboolean CL_VM_InputEvent (qboolean down, int key, int ascii)
 285 {
 286         qboolean r;
 287
 288         if(!cl.csqc_loaded)
 289                 return false;
 290
 291         CSQC_BEGIN
 292                 if (!prog->funcoffsets.CSQC_InputEvent)
 293                         r = false;
 294                 else
 295                 {
 296                         prog->globals.client->time = cl.time;
 297                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 298                         PRVM_G_FLOAT(OFS_PARM0) = !down; // 0 is down, 1 is up
 299                         PRVM_G_FLOAT(OFS_PARM1) = key;
 300                         PRVM_G_FLOAT(OFS_PARM2) = ascii;
 301                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_InputEvent, "QC function CSQC_InputEvent is missing");
 302                         r = CSQC_RETURNVAL != 0;
 303                 }
 304         CSQC_END
 305         return r;
 306 }
 307
 308 qboolean CL_VM_UpdateView (void)
 309 {
 310         vec3_t emptyvector;
 311         emptyvector[0] = 0;
 312         emptyvector[1] = 0;
 313         emptyvector[2] = 0;
 314 //      vec3_t oldangles;
 315         if(!cl.csqc_loaded)
 316                 return false;
 317         CSQC_BEGIN
 318                 //VectorCopy(cl.viewangles, oldangles);
 319                 prog->globals.client->time = cl.time;
 320                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 321                 CSQC_SetGlobals();
 322                 // clear renderable entity and light lists to prevent crashes if the
 323                 // CSQC_UpdateView function does not call R_ClearScene as it should
 324                 r_refdef.scene.numentities = 0;
 325                 r_refdef.scene.numlights = 0;
 326                 // pass in width and height as parameters (EXT_CSQC_1)
 327                 PRVM_G_FLOAT(OFS_PARM0) = vid.width;
 328                 PRVM_G_FLOAT(OFS_PARM1) = vid.height;
 329                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_UpdateView, "QC function CSQC_UpdateView is missing");
 330                 //VectorCopy(oldangles, cl.viewangles);
 331                 // Dresk : Reset Dmg Globals Here
 332                 CL_VM_UpdateDmgGlobals(0, 0, emptyvector);
 333         CSQC_END
 334         return true;
 335 }
 336
 337 extern sizebuf_t vm_tempstringsbuf;
 338 qboolean CL_VM_ConsoleCommand (const char *cmd)
 339 {
 340         int restorevm_tempstringsbuf_cursize;
 341         qboolean r = false;
 342         if(!cl.csqc_loaded)
 343                 return false;
 344         CSQC_BEGIN
 345         if (prog->funcoffsets.CSQC_ConsoleCommand)
 346         {
 347                 prog->globals.client->time = cl.time;
 348                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 349                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 350                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(cmd);
 351                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_ConsoleCommand, "QC function CSQC_ConsoleCommand is missing");
 352                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 353                 r = CSQC_RETURNVAL != 0;
 354         }
 355         CSQC_END
 356         return r;
 357 }
 358
 359 qboolean CL_VM_Parse_TempEntity (void)
 360 {
 361         int                     t;
 362         qboolean        r = false;
 363         if(!cl.csqc_loaded)
 364                 return false;
 365         CSQC_BEGIN
 366         if(prog->funcoffsets.CSQC_Parse_TempEntity)
 367         {
 368                 t = msg_readcount;
 369                 prog->globals.client->time = cl.time;
 370                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 371                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_TempEntity, "QC function CSQC_Parse_TempEntity is missing");
 372                 r = CSQC_RETURNVAL != 0;
 373                 if(!r)
 374                 {
 375                         msg_readcount = t;
 376                         msg_badread = false;
 377                 }
 378         }
 379         CSQC_END
 380         return r;
 381 }
 382
 383 void CL_VM_Parse_StuffCmd (const char *msg)
 384 {
 385         int restorevm_tempstringsbuf_cursize;
 386         if(msg[0] == 'c')
 387         if(msg[1] == 's')
 388         if(msg[2] == 'q')
 389         if(msg[3] == 'c')
 390         {
 391                 // if this is setting a csqc variable, deprotect csqc_progcrc
 392                 // temporarily so that it can be set by the cvar command,
 393                 // and then reprotect it afterwards
 394                 int crcflags = csqc_progcrc.flags;
 395                 int sizeflags = csqc_progcrc.flags;
 396                 csqc_progcrc.flags &= ~CVAR_READONLY;
 397                 csqc_progsize.flags &= ~CVAR_READONLY;
 398                 Cmd_ExecuteString (msg, src_command);
 399                 csqc_progcrc.flags = crcflags;
 400                 csqc_progsize.flags = sizeflags;
 401                 return;
 402         }
 403
 404         if(cls.demoplayback)
 405         if(!strncmp(msg, "curl --clear_autodownload\ncurl --pak --forthismap --as ", 55))
 406         {
 407                 // special handling for map download commands
 408                 // run these commands IMMEDIATELY, instead of waiting for a client frame
 409                 // that way, there is no black screen when playing back demos
 410                 // I know this is a really ugly hack, but I can't think of any better way
 411                 // FIXME find the actual CAUSE of this, and make demo playback WAIT
 412                 // until all maps are loaded, then remove this hack
 413
 414                 char buf[MAX_INPUTLINE];
 415                 const char *p, *q;
 416                 size_t l;
 417
 418                 p = msg;
 419
 420                 for(;;)
 421                 {
 422                         q = strchr(p, '\n');
 423                         if(q)
 424                                 l = q - p;
 425                         else
 426                                 l = strlen(p);
 427                         if(l > sizeof(buf) - 1)
 428                                 l = sizeof(buf) - 1;
 429                         strlcpy(buf, p, l + 1); // strlcpy needs a + 1 as it includes the newline!
 430
 431                         Cmd_ExecuteString(buf, src_command);
 432
 433                         p += l;
 434                         if(*p == '\n')
 435                                 ++p; // skip the newline and continue
 436                         else
 437                                 break; // end of string or overflow
 438                 }
 439                 Cmd_ExecuteString("curl --clear_autodownload", src_command); // don't inhibit CSQC loading
 440                 return;
 441         }
 442
 443         if(!cl.csqc_loaded)
 444         {
 445                 Cbuf_AddText(msg);
 446                 return;
 447         }
 448         CSQC_BEGIN
 449         if(prog->funcoffsets.CSQC_Parse_StuffCmd)
 450         {
 451                 prog->globals.client->time = cl.time;
 452                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 453                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 454                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 455                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_StuffCmd, "QC function CSQC_Parse_StuffCmd is missing");
 456                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 457         }
 458         else
 459                 Cbuf_AddText(msg);
 460         CSQC_END
 461 }
 462
 463 static void CL_VM_Parse_Print (const char *msg)
 464 {
 465         int restorevm_tempstringsbuf_cursize;
 466         prog->globals.client->time = cl.time;
 467         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 468         restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 469         PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 470         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_Print, "QC function CSQC_Parse_Print is missing");
 471         vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 472 }
 473
 474 void CSQC_AddPrintText (const char *msg)
 475 {
 476         size_t i;
 477         if(!cl.csqc_loaded)
 478         {
 479                 Con_Print(msg);
 480                 return;
 481         }
 482         CSQC_BEGIN
 483         if(prog->funcoffsets.CSQC_Parse_Print)
 484         {
 485                 // FIXME: is this bugged?
 486                 i = strlen(msg)-1;
 487                 if(msg[i] != '\n' && msg[i] != '\r')
 488                 {
 489                         if(strlen(cl.csqc_printtextbuf)+i >= MAX_INPUTLINE)
 490                         {
 491                                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 492                                 cl.csqc_printtextbuf[0] = 0;
 493                         }
 494                         else
 495                                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 496                         return;
 497                 }
 498                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 499                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 500                 cl.csqc_printtextbuf[0] = 0;
 501         }
 502         else
 503                 Con_Print(msg);
 504         CSQC_END
 505 }
 506
 507 void CL_VM_Parse_CenterPrint (const char *msg)
 508 {
 509         int restorevm_tempstringsbuf_cursize;
 510         if(!cl.csqc_loaded)
 511         {
 512                 SCR_CenterPrint(msg);
 513                 return;
 514         }
 515         CSQC_BEGIN
 516         if(prog->funcoffsets.CSQC_Parse_CenterPrint)
 517         {
 518                 prog->globals.client->time = cl.time;
 519                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 520                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 521                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 522                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_CenterPrint, "QC function CSQC_Parse_CenterPrint is missing");
 523                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 524         }
 525         else
 526                 SCR_CenterPrint(msg);
 527         CSQC_END
 528 }
 529
 530 void CL_VM_UpdateIntermissionState (int intermission)
 531 {
 532         prvm_eval_t *val;
 533         if(cl.csqc_loaded)
 534         {
 535                 CSQC_BEGIN
 536                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.intermission);
 537                 if(val)
 538                         val->_float = intermission;
 539                 CSQC_END
 540         }
 541 }
 542 void CL_VM_UpdateShowingScoresState (int showingscores)
 543 {
 544         prvm_eval_t *val;
 545         if(cl.csqc_loaded)
 546         {
 547                 CSQC_BEGIN
 548                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.sb_showscores);
 549                 if(val)
 550                         val->_float = showingscores;
 551                 CSQC_END
 552         }
 553 }
 554 qboolean CL_VM_Event_Sound(int sound_num, float volume, int channel, float attenuation, int ent, vec3_t pos)
 555 {
 556         qboolean r = false;
 557         if(cl.csqc_loaded)
 558         {
 559                 CSQC_BEGIN
 560                 if(prog->funcoffsets.CSQC_Event_Sound)
 561                 {
 562                         prog->globals.client->time = cl.time;
 563                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 564                         PRVM_G_FLOAT(OFS_PARM0) = ent;
 565                         PRVM_G_FLOAT(OFS_PARM1) = channel;
 566                         PRVM_G_INT(OFS_PARM2) = PRVM_SetTempString(cl.sound_name[sound_num] );
 567                         PRVM_G_FLOAT(OFS_PARM3) = volume;
 568                         PRVM_G_FLOAT(OFS_PARM4) = attenuation;
 569                         VectorCopy(pos, PRVM_G_VECTOR(OFS_PARM5) );
 570                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event_Sound, "QC function CSQC_Event_Sound is missing");
 571                         r = CSQC_RETURNVAL != 0;
 572                 }
 573                 CSQC_END
 574         }
 575
 576         return r;
 577 }
 578 void CL_VM_UpdateCoopDeathmatchGlobals (int gametype)
 579 {
 580         // Avoid global names for clean(er) coding
 581         int localcoop;
 582         int localdeathmatch;
 583
 584         prvm_eval_t *val;
 585         if(cl.csqc_loaded)
 586         {
 587                 if(gametype == GAME_COOP)
 588                 {
 589                         localcoop = 1;
 590                         localdeathmatch = 0;
 591                 }
 592                 else
 593                 if(gametype == GAME_DEATHMATCH)
 594                 {
 595                         localcoop = 0;
 596                         localdeathmatch = 1;
 597                 }
 598                 else
 599                 {
 600                         // How did the ServerInfo send an unknown gametype?
 601                         // Better just assign the globals as 0...
 602                         localcoop = 0;
 603                         localdeathmatch = 0;
 604                 }
 605                 CSQC_BEGIN
 606                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.coop);
 607                 if(val)
 608                         val->_float = localcoop;
 609                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.deathmatch);
 610                 if(val)
 611                         val->_float = localdeathmatch;
 612                 CSQC_END
 613         }
 614 }
 615 float CL_VM_Event (float event)         //[515]: needed ? I'd say "YES", but don't know for what :D
 616 {
 617         float r = 0;
 618         if(!cl.csqc_loaded)
 619                 return 0;
 620         CSQC_BEGIN
 621         if(prog->funcoffsets.CSQC_Event)
 622         {
 623                 prog->globals.client->time = cl.time;
 624                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 625                 PRVM_G_FLOAT(OFS_PARM0) = event;
 626                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event, "QC function CSQC_Event is missing");
 627                 r = CSQC_RETURNVAL;
 628         }
 629         CSQC_END
 630         return r;
 631 }
 632
 633 void CSQC_ReadEntities (void)
 634 {
 635         unsigned short entnum, oldself, realentnum;
 636         if(!cl.csqc_loaded)
 637         {
 638                 Host_Error ("CSQC_ReadEntities: CSQC is not loaded");
 639                 return;
 640         }
 641
 642         CSQC_BEGIN
 643                 prog->globals.client->time = cl.time;
 644                 oldself = prog->globals.client->self;
 645                 while(1)
 646                 {
 647                         entnum = MSG_ReadShort();
 648                         if(!entnum || msg_badread)
 649                                 return;
 650                         realentnum = entnum & 0x7FFF;
 651                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum];
 652                         if(entnum & 0x8000)
 653                         {
 654                                 if(prog->globals.client->self)
 655                                 {
 656                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Remove, "QC function CSQC_Ent_Remove is missing");
 657                                         cl.csqc_server2csqcentitynumber[realentnum] = 0;
 658                                 }
 659                                 else
 660                                 {
 661                                         // LordHavoc: removing an entity that is already gone on
 662                                         // the csqc side is possible for legitimate reasons (such
 663                                         // as a repeat of the remove message), so no warning is
 664                                         // needed
 665                                         //Con_Printf("Bad csqc_server2csqcentitynumber map\n"); //[515]: never happens ?
 666                                 }
 667                         }
 668                         else
 669                         {
 670                                 if(!prog->globals.client->self)
 671                                 {
 672                                         if(!prog->funcoffsets.CSQC_Ent_Spawn)
 673                                         {
 674                                                 prvm_edict_t    *ed;
 675                                                 ed = PRVM_ED_Alloc();
 676                                                 ed->fields.client->entnum = realentnum;
 677                                                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT_TO_PROG(ed);
 678                                         }
 679                                         else
 680                                         {
 681                                                 // entity( float entnum ) CSQC_Ent_Spawn;
 682                                                 // the qc function should set entnum, too (this way it also can return world [2/1/2008 Andreas]
 683                                                 PRVM_G_FLOAT(OFS_PARM0) = (float) realentnum;
 684                                                 // make sure no one gets wrong ideas
 685                                                 prog->globals.client->self = 0;
 686                                                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Spawn, "QC function CSQC_Ent_Spawn is missing");
 687                                                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT( PRVM_G_INT( OFS_RETURN ) );
 688                                         }
 689                                         PRVM_G_FLOAT(OFS_PARM0) = 1;
 690                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 691                                 }
 692                                 else {
 693                                         PRVM_G_FLOAT(OFS_PARM0) = 0;
 694                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 695                                 }
 696                         }
 697                 }
 698                 prog->globals.client->self = oldself;
 699         CSQC_END
 700 }
 701
 702 void CL_VM_CB_BeginIncreaseEdicts(void)
 703 {
 704         // links don't survive the transition, so unlink everything
 705         World_UnlinkAll(&cl.world);
 706 }
 707
 708 void CL_VM_CB_EndIncreaseEdicts(void)
 709 {
 710         int i;
 711         prvm_edict_t *ent;
 712
 713         // link every entity except world
 714         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
 715                 if (!ent->priv.server->free)
 716                         CL_LinkEdict(ent);
 717 }
 718
 719 void CL_VM_CB_InitEdict(prvm_edict_t *e)
 720 {
 721         e->priv.server->move = false; // don't move on first frame
 722 }
 723
 724 void CL_VM_CB_FreeEdict(prvm_edict_t *ed)
 725 {
 726         World_UnlinkEdict(ed);
 727         memset(ed->fields.client, 0, sizeof(*ed->fields.client));
 728 }
 729
 730 void CL_VM_CB_CountEdicts(void)
 731 {
 732         int             i;
 733         prvm_edict_t    *ent;
 734         int             active = 0, models = 0, solid = 0;
 735
 736         for (i=0 ; i<prog->num_edicts ; i++)
 737         {
 738                 ent = PRVM_EDICT_NUM(i);
 739                 if (ent->priv.server->free)
 740                         continue;
 741                 active++;
 742                 if (ent->fields.client->solid)
 743                         solid++;
 744                 if (ent->fields.client->model)
 745                         models++;
 746         }
 747
 748         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
 749         Con_Printf("active    :%3i\n", active);
 750         Con_Printf("view      :%3i\n", models);
 751         Con_Printf("touch     :%3i\n", solid);
 752 }
 753
 754 qboolean CL_VM_CB_LoadEdict(prvm_edict_t *ent)
 755 {
 756         return true;
 757 }
 758
 759 void Cmd_ClearCsqcFuncs (void);
 760
 761 // returns true if the packet is valid, false if end of file is reached
 762 // used for dumping the CSQC download into demo files
 763 qboolean MakeDownloadPacket(const char *filename, unsigned char *data, unsigned long len, int crc, int cnt, sizebuf_t *buf, int protocol)
 764 {
 765         int packetsize = buf->maxsize - 7; // byte short long
 766         int npackets = (len + packetsize - 1) / (packetsize);
 767
 768         if(protocol == PROTOCOL_QUAKEWORLD)
 769                 return false; // CSQC can't run in QW anyway
 770
 771         SZ_Clear(buf);
 772         if(cnt == 0)
 773         {
 774                 MSG_WriteByte(buf, svc_stufftext);
 775                 MSG_WriteString(buf, va("\ncl_downloadbegin %lu %s\n", len, filename));
 776                 return true;
 777         }
 778         else if(cnt >= 1 && cnt <= npackets)
 779         {
 780                 unsigned long thispacketoffset = (cnt - 1) * packetsize;
 781                 int thispacketsize = len - thispacketoffset;
 782                 if(thispacketsize > packetsize)
 783                         thispacketsize = packetsize;
 784
 785                 MSG_WriteByte(buf, svc_downloaddata);
 786                 MSG_WriteLong(buf, thispacketoffset);
 787                 MSG_WriteShort(buf, thispacketsize);
 788                 SZ_Write(buf, data + thispacketoffset, thispacketsize);
 789
 790                 return true;
 791         }
 792         else if(cnt == npackets + 1)
 793         {
 794                 MSG_WriteByte(buf, svc_stufftext);
 795                 MSG_WriteString(buf, va("\ncl_downloadfinished %lu %d\n", len, crc));
 796                 return true;
 797         }
 798         return false;
 799 }
 800
 801 void CL_VM_Init (void)
 802 {
 803         const char* csprogsfn;
 804         unsigned char *csprogsdata;
 805         fs_offset_t csprogsdatasize;
 806         int csprogsdatacrc, requiredcrc;
 807         int requiredsize;
 808         prvm_eval_t *val;
 809
 810         // reset csqc_progcrc after reading it, so that changing servers doesn't
 811         // expect csqc on the next server
 812         requiredcrc = csqc_progcrc.integer;
 813         requiredsize = csqc_progsize.integer;
 814         Cvar_SetValueQuick(&csqc_progcrc, -1);
 815         Cvar_SetValueQuick(&csqc_progsize, -1);
 816
 817         // if the server is not requesting a csprogs, then we're done here
 818         if (requiredcrc < 0)
 819                 return;
 820
 821         // see if the requested csprogs.dat file matches the requested crc
 822         csprogsdatacrc = -1;
 823         csprogsfn = va("dlcache/%s.%i.%i", csqc_progname.string, requiredsize, requiredcrc);
 824         csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
 825         if (!csprogsdata)
 826         {
 827                 csprogsfn = csqc_progname.string;
 828                 csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
 829         }
 830         if (csprogsdata)
 831         {
 832                 csprogsdatacrc = CRC_Block(csprogsdata, csprogsdatasize);
 833                 if (csprogsdatacrc != requiredcrc || csprogsdatasize != requiredsize)
 834                 {
 835                         if (cls.demoplayback)
 836                         {
 837                                 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);
 838                                 // Mem_Free(csprogsdata);
 839                                 // return;
 840                                 // We WANT to continue here, and play the demo with different csprogs!
 841                                 // After all, this is just a warning. Sure things may go wrong from here.
 842                         }
 843                         else
 844                         {
 845                                 Mem_Free(csprogsdata);
 846                                 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);
 847                                 CL_Disconnect();
 848                                 return;
 849                         }
 850                 }
 851         }
 852         else
 853         {
 854                 if (requiredcrc >= 0)
 855                 {
 856                         if (cls.demoplayback)
 857                                 Con_Printf("CL_VM_Init: demo requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 858                         else
 859                                 Con_Printf("CL_VM_Init: server requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 860                         CL_Disconnect();
 861                 }
 862                 return;
 863         }
 864
 865         PRVM_Begin;
 866         PRVM_InitProg(PRVM_CLIENTPROG);
 867
 868         // allocate the mempools
 869         prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
 870         prog->headercrc = CL_PROGHEADER_CRC;
 871         prog->edictprivate_size = 0; // no private struct used
 872         prog->name = CL_NAME;
 873         prog->num_edicts = 1;
 874         prog->max_edicts = 512;
 875         prog->limit_edicts = CL_MAX_EDICTS;
 876         prog->reserved_edicts = 0;
 877         prog->edictprivate_size = sizeof(edict_engineprivate_t);
 878         // TODO: add a shared extension string #define and add real support for csqc extension strings [12/5/2007 Black]
 879         prog->extensionstring = vm_sv_extensions;
 880         prog->builtins = vm_cl_builtins;
 881         prog->numbuiltins = vm_cl_numbuiltins;
 882         prog->begin_increase_edicts = CL_VM_CB_BeginIncreaseEdicts;
 883         prog->end_increase_edicts = CL_VM_CB_EndIncreaseEdicts;
 884         prog->init_edict = CL_VM_CB_InitEdict;
 885         prog->free_edict = CL_VM_CB_FreeEdict;
 886         prog->count_edicts = CL_VM_CB_CountEdicts;
 887         prog->load_edict = CL_VM_CB_LoadEdict;
 888         prog->init_cmd = VM_CL_Cmd_Init;
 889         prog->reset_cmd = VM_CL_Cmd_Reset;
 890         prog->error_cmd = CL_VM_Error;
 891         prog->ExecuteProgram = CLVM_ExecuteProgram;
 892
 893         PRVM_LoadProgs(csprogsfn, cl_numrequiredfunc, cl_required_func, 0, NULL, 0, NULL);
 894
 895         if (!prog->loaded)
 896         {
 897                 CL_VM_Error("CSQC %s ^2failed to load\n", csprogsfn);
 898                 if(!sv.active)
 899                         CL_Disconnect();
 900                 Mem_Free(csprogsdata);
 901                 return;
 902         }
 903
 904         Con_Printf("CSQC %s ^5loaded (crc=%i, size=%i)\n", csprogsfn, csprogsdatacrc, (int)csprogsdatasize);
 905
 906         if(cls.demorecording)
 907         {
 908                 if(cls.demo_lastcsprogssize != csprogsdatasize || cls.demo_lastcsprogscrc != csprogsdatacrc)
 909                 {
 910                         int i;
 911                         char buf[NET_MAXMESSAGE];
 912                         sizebuf_t sb;
 913                         unsigned char *demobuf; fs_offset_t demofilesize;
 914
 915                         sb.data = (unsigned char *) buf;
 916                         sb.maxsize = sizeof(buf);
 917                         i = 0;
 918
 919                         CL_CutDemo(&demobuf, &demofilesize);
 920                         while(MakeDownloadPacket(csqc_progname.string, csprogsdata, csprogsdatasize, csprogsdatacrc, i++, &sb, cls.protocol))
 921                                 CL_WriteDemoMessage(&sb);
 922                         CL_PasteDemo(&demobuf, &demofilesize);
 923
 924                         cls.demo_lastcsprogssize = csprogsdatasize;
 925                         cls.demo_lastcsprogscrc = csprogsdatacrc;
 926                 }
 927         }
 928         Mem_Free(csprogsdata);
 929
 930         // check if OP_STATE animation is possible in this dat file
 931         if (prog->fieldoffsets.nextthink >= 0 && prog->fieldoffsets.frame >= 0 && prog->fieldoffsets.think >= 0 && prog->globaloffsets.self >= 0)
 932                 prog->flag |= PRVM_OP_STATE;
 933
 934         // set time
 935         prog->globals.client->time = cl.time;
 936         prog->globals.client->self = 0;
 937
 938         prog->globals.client->mapname = cl.worldmodel ? PRVM_SetEngineString(cl.worldmodel->name) : PRVM_SetEngineString("");
 939         prog->globals.client->player_localentnum = cl.playerentity;
 940
 941         // set map description (use world entity 0)
 942         val = PRVM_EDICTFIELDVALUE(prog->edicts, prog->fieldoffsets.message);
 943         if(val)
 944                 val->string = PRVM_SetEngineString(cl.levelname);
 945         VectorCopy(cl.world.mins, prog->edicts->fields.client->mins);
 946         VectorCopy(cl.world.maxs, prog->edicts->fields.client->maxs);
 947
 948         // call the prog init
 949         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Init, "QC function CSQC_Init is missing");
 950
 951         PRVM_End;
 952         cl.csqc_loaded = true;
 953
 954         cl.csqc_vidvars.drawcrosshair = false;
 955         cl.csqc_vidvars.drawenginesbar = false;
 956
 957         // Update Coop and Deathmatch Globals (at this point the client knows them from ServerInfo)
 958         CL_VM_UpdateCoopDeathmatchGlobals(cl.gametype);
 959 }
 960
 961 void CL_VM_ShutDown (void)
 962 {
 963         Cmd_ClearCsqcFuncs();
 964         //Cvar_SetValueQuick(&csqc_progcrc, -1);
 965         //Cvar_SetValueQuick(&csqc_progsize, -1);
 966         if(!cl.csqc_loaded)
 967                 return;
 968         CSQC_BEGIN
 969                 prog->globals.client->time = cl.time;
 970                 prog->globals.client->self = 0;
 971                 if (prog->funcoffsets.CSQC_Shutdown)
 972                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Shutdown, "QC function CSQC_Shutdown is missing");
 973                 PRVM_ResetProg();
 974         CSQC_END
 975         Con_Print("CSQC ^1unloaded\n");
 976         cl.csqc_loaded = false;
 977 }
 978
 979 qboolean CL_VM_GetEntitySoundOrigin(int entnum, vec3_t out)
 980 {
 981         prvm_edict_t *ed;
 982         dp_model_t *mod;
 983         matrix4x4_t matrix;
 984         qboolean r = 0;
 985
 986         CSQC_BEGIN;
 987
 988         // FIXME consider attachments here!
 989
 990         ed = PRVM_EDICT_NUM(entnum - 32768);
 991
 992         if(!ed->priv.required->free)
 993         {
 994                 mod = CL_GetModelFromEdict(ed);
 995                 VectorCopy(ed->fields.client->origin, out);
 996                 if(CL_GetTagMatrix (&matrix, ed, 0) == 0)
 997                         Matrix4x4_OriginFromMatrix(&matrix, out);
 998                 if (mod && mod->soundfromcenter)
 999                         VectorMAMAM(1.0f, out, 0.5f, mod->normalmins, 0.5f, mod->normalmaxs, out);
1000                 r = 1;
1001         }
1002
1003         CSQC_END;
1004
1005         return r;
1006 }