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 extern cvar_t r_equalize_entities_fullbright;
 157 qboolean CSQC_AddRenderEdict(prvm_edict_t *ed, int edictnum)
 158 {
 159         int renderflags;
 160         int c;
 161         float scale;
 162         prvm_eval_t *val;
 163         entity_render_t *entrender;
 164         dp_model_t *model;
 165         matrix4x4_t tagmatrix, matrix2;
 166
 167         model = CL_GetModelFromEdict(ed);
 168         if (!model)
 169                 return false;
 170
 171         if (edictnum)
 172         {
 173                 if (r_refdef.scene.numentities >= r_refdef.scene.maxentities)
 174                         return false;
 175                 entrender = cl.csqcrenderentities + edictnum;
 176                 r_refdef.scene.entities[r_refdef.scene.numentities++] = entrender;
 177                 entrender->entitynumber = edictnum;
 178                 //entrender->shadertime = 0; // shadertime was set by spawn()
 179                 entrender->alpha = 1;
 180                 entrender->scale = 1;
 181                 VectorSet(entrender->colormod, 1, 1, 1);
 182                 VectorSet(entrender->glowmod, 1, 1, 1);
 183                 entrender->allowdecals = true;
 184         }
 185         else
 186         {
 187                 entrender = CL_NewTempEntity(0);
 188                 if (!entrender)
 189                         return false;
 190         }
 191
 192         entrender->model = model;
 193         entrender->skinnum = (int)ed->fields.client->skin;
 194         entrender->effects |= entrender->model->effects;
 195         scale = 1;
 196         renderflags = 0;
 197         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.renderflags)) && val->_float)     renderflags = (int)val->_float;
 198         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.alpha)) && val->_float)           entrender->alpha = val->_float;
 199         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.scale)) && val->_float)           entrender->scale = scale = val->_float;
 200         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.colormod)) && VectorLength2(val->vector)) VectorCopy(val->vector, entrender->colormod);
 201         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.glowmod)) && VectorLength2(val->vector))  VectorCopy(val->vector, entrender->glowmod);
 202         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.effects)) && val->_float) entrender->effects |= (int)val->_float;
 203         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_entity)) && val->edict)
 204         {
 205                 int tagentity;
 206                 int tagindex = 0;
 207                 tagentity = val->edict;
 208                 if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_index)) && val->_float)
 209                         tagindex = (int)val->_float;
 210                 CL_GetTagMatrix (&tagmatrix, PRVM_PROG_TO_EDICT(tagentity), tagindex);
 211         }
 212         else
 213                 Matrix4x4_CreateIdentity(&tagmatrix);
 214         if (!VectorLength2(entrender->colormod))
 215                 VectorSet(entrender->colormod, 1, 1, 1);
 216         if (!VectorLength2(entrender->glowmod))
 217                 VectorSet(entrender->glowmod, 1, 1, 1);
 218
 219         if (renderflags & RF_USEAXIS)
 220         {
 221                 vec3_t left;
 222                 VectorNegate(prog->globals.client->v_right, left);
 223                 Matrix4x4_FromVectors(&matrix2, prog->globals.client->v_forward, left, prog->globals.client->v_up, ed->fields.client->origin);
 224                 Matrix4x4_Scale(&matrix2, scale, 1);
 225         }
 226         else
 227         {
 228                 vec3_t angles;
 229                 VectorCopy(ed->fields.client->angles, angles);
 230                 // if model is alias, reverse pitch direction
 231                 if (entrender->model->type == mod_alias)
 232                         angles[0] = -angles[0];
 233
 234                 // set up the render matrix
 235                 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);
 236         }
 237
 238         // set up the animation data
 239         VM_GenerateFrameGroupBlend(ed->priv.server->framegroupblend, ed);
 240         VM_FrameBlendFromFrameGroupBlend(ed->priv.server->frameblend, ed->priv.server->framegroupblend, model);
 241         VM_UpdateEdictSkeleton(ed, model, ed->priv.server->frameblend);
 242         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.shadertime))) entrender->shadertime = val->_float;
 243
 244         // concat the matrices to make the entity relative to its tag
 245         Matrix4x4_Concat(&entrender->matrix, &tagmatrix, &matrix2);
 246
 247         // transparent offset
 248         if ((renderflags & RF_USETRANSPARENTOFFSET) && (val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.transparent_offset)))
 249                 entrender->transparent_offset = val->_float;
 250
 251         if(renderflags)
 252         {
 253                 if(renderflags & RF_VIEWMODEL)  entrender->flags |= RENDER_VIEWMODEL | RENDER_NODEPTHTEST;
 254                 if(renderflags & RF_EXTERNALMODEL)entrender->flags |= RENDER_EXTERIORMODEL;
 255                 if(renderflags & RF_NOCULL)             entrender->flags |= RENDER_NOCULL;
 256                 if(renderflags & RF_DEPTHHACK)  entrender->flags |= RENDER_NODEPTHTEST;
 257                 if(renderflags & RF_ADDITIVE)           entrender->flags |= RENDER_ADDITIVE;
 258
 259         }
 260
 261         c = (int)ed->fields.client->colormap;
 262         if (c <= 0)
 263                 CL_SetEntityColormapColors(entrender, -1);
 264         else if (c <= cl.maxclients && cl.scores != NULL)
 265                 CL_SetEntityColormapColors(entrender, cl.scores[c-1].colors);
 266         else
 267                 CL_SetEntityColormapColors(entrender, c);
 268
 269         entrender->flags &= ~(RENDER_SHADOW | RENDER_LIGHT | RENDER_NOSELFSHADOW);
 270         // either fullbright or lit
 271         if(!r_fullbright.integer)
 272         {
 273                 if (!(entrender->effects & EF_FULLBRIGHT))
 274                         entrender->flags |= RENDER_LIGHT;
 275                 else if(r_equalize_entities_fullbright.integer)
 276                         entrender->flags |= RENDER_LIGHT | RENDER_EQUALIZE;
 277         }
 278         // hide player shadow during intermission or nehahra movie
 279         if (!(entrender->effects & (EF_NOSHADOW | EF_ADDITIVE | EF_NODEPTHTEST))
 280          &&  (entrender->alpha >= 1)
 281          && !(entrender->flags & RENDER_VIEWMODEL)
 282          && (!(entrender->flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 283                 entrender->flags |= RENDER_SHADOW;
 284         if (entrender->flags & RENDER_VIEWMODEL)
 285                 entrender->flags |= RENDER_NOSELFSHADOW;
 286         if (entrender->effects & EF_NOSELFSHADOW)
 287                 entrender->flags |= RENDER_NOSELFSHADOW;
 288         if (entrender->effects & EF_NODEPTHTEST)
 289                 entrender->flags |= RENDER_NODEPTHTEST;
 290         if (entrender->effects & EF_ADDITIVE)
 291                 entrender->flags |= RENDER_ADDITIVE;
 292         if (entrender->effects & EF_DOUBLESIDED)
 293                 entrender->flags |= RENDER_DOUBLESIDED;
 294
 295         // make the other useful stuff
 296         memcpy(entrender->framegroupblend, ed->priv.server->framegroupblend, sizeof(ed->priv.server->framegroupblend));
 297         CL_UpdateRenderEntity(entrender);
 298         // override animation data with full control
 299         memcpy(entrender->frameblend, ed->priv.server->frameblend, sizeof(ed->priv.server->frameblend));
 300         if (ed->priv.server->skeleton.relativetransforms)
 301                 entrender->skeleton = &ed->priv.server->skeleton;
 302         else
 303                 entrender->skeleton = NULL;
 304
 305         return true;
 306 }
 307
 308 qboolean CL_VM_InputEvent (qboolean down, int key, int ascii)
 309 {
 310         qboolean r;
 311
 312         if(!cl.csqc_loaded)
 313                 return false;
 314
 315         CSQC_BEGIN
 316                 if (!prog->funcoffsets.CSQC_InputEvent)
 317                         r = false;
 318                 else
 319                 {
 320                         prog->globals.client->time = cl.time;
 321                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 322                         PRVM_G_FLOAT(OFS_PARM0) = !down; // 0 is down, 1 is up
 323                         PRVM_G_FLOAT(OFS_PARM1) = key;
 324                         PRVM_G_FLOAT(OFS_PARM2) = ascii;
 325                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_InputEvent, "QC function CSQC_InputEvent is missing");
 326                         r = CSQC_RETURNVAL != 0;
 327                 }
 328         CSQC_END
 329         return r;
 330 }
 331
 332 qboolean CL_VM_UpdateView (void)
 333 {
 334         vec3_t emptyvector;
 335         emptyvector[0] = 0;
 336         emptyvector[1] = 0;
 337         emptyvector[2] = 0;
 338 //      vec3_t oldangles;
 339         if(!cl.csqc_loaded)
 340                 return false;
 341         CSQC_BEGIN
 342                 //VectorCopy(cl.viewangles, oldangles);
 343                 prog->globals.client->time = cl.time;
 344                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 345                 CSQC_SetGlobals();
 346                 // clear renderable entity and light lists to prevent crashes if the
 347                 // CSQC_UpdateView function does not call R_ClearScene as it should
 348                 r_refdef.scene.numentities = 0;
 349                 r_refdef.scene.numlights = 0;
 350                 // pass in width and height as parameters (EXT_CSQC_1)
 351                 PRVM_G_FLOAT(OFS_PARM0) = vid.width;
 352                 PRVM_G_FLOAT(OFS_PARM1) = vid.height;
 353                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_UpdateView, "QC function CSQC_UpdateView is missing");
 354                 //VectorCopy(oldangles, cl.viewangles);
 355                 // Dresk : Reset Dmg Globals Here
 356                 CL_VM_UpdateDmgGlobals(0, 0, emptyvector);
 357         CSQC_END
 358         return true;
 359 }
 360
 361 extern sizebuf_t vm_tempstringsbuf;
 362 qboolean CL_VM_ConsoleCommand (const char *cmd)
 363 {
 364         int restorevm_tempstringsbuf_cursize;
 365         qboolean r = false;
 366         if(!cl.csqc_loaded)
 367                 return false;
 368         CSQC_BEGIN
 369         if (prog->funcoffsets.CSQC_ConsoleCommand)
 370         {
 371                 prog->globals.client->time = cl.time;
 372                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 373                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 374                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(cmd);
 375                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_ConsoleCommand, "QC function CSQC_ConsoleCommand is missing");
 376                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 377                 r = CSQC_RETURNVAL != 0;
 378         }
 379         CSQC_END
 380         return r;
 381 }
 382
 383 qboolean CL_VM_Parse_TempEntity (void)
 384 {
 385         int                     t;
 386         qboolean        r = false;
 387         if(!cl.csqc_loaded)
 388                 return false;
 389         CSQC_BEGIN
 390         if(prog->funcoffsets.CSQC_Parse_TempEntity)
 391         {
 392                 t = msg_readcount;
 393                 prog->globals.client->time = cl.time;
 394                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 395                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_TempEntity, "QC function CSQC_Parse_TempEntity is missing");
 396                 r = CSQC_RETURNVAL != 0;
 397                 if(!r)
 398                 {
 399                         msg_readcount = t;
 400                         msg_badread = false;
 401                 }
 402         }
 403         CSQC_END
 404         return r;
 405 }
 406
 407 void CL_VM_Parse_StuffCmd (const char *msg)
 408 {
 409         int restorevm_tempstringsbuf_cursize;
 410         if(msg[0] == 'c')
 411         if(msg[1] == 's')
 412         if(msg[2] == 'q')
 413         if(msg[3] == 'c')
 414         {
 415                 // if this is setting a csqc variable, deprotect csqc_progcrc
 416                 // temporarily so that it can be set by the cvar command,
 417                 // and then reprotect it afterwards
 418                 int crcflags = csqc_progcrc.flags;
 419                 int sizeflags = csqc_progcrc.flags;
 420                 csqc_progcrc.flags &= ~CVAR_READONLY;
 421                 csqc_progsize.flags &= ~CVAR_READONLY;
 422                 Cmd_ExecuteString (msg, src_command);
 423                 csqc_progcrc.flags = crcflags;
 424                 csqc_progsize.flags = sizeflags;
 425                 return;
 426         }
 427
 428         if(cls.demoplayback)
 429         if(!strncmp(msg, "curl --clear_autodownload\ncurl --pak --forthismap --as ", 55))
 430         {
 431                 // special handling for map download commands
 432                 // run these commands IMMEDIATELY, instead of waiting for a client frame
 433                 // that way, there is no black screen when playing back demos
 434                 // I know this is a really ugly hack, but I can't think of any better way
 435                 // FIXME find the actual CAUSE of this, and make demo playback WAIT
 436                 // until all maps are loaded, then remove this hack
 437
 438                 char buf[MAX_INPUTLINE];
 439                 const char *p, *q;
 440                 size_t l;
 441
 442                 p = msg;
 443
 444                 for(;;)
 445                 {
 446                         q = strchr(p, '\n');
 447                         if(q)
 448                                 l = q - p;
 449                         else
 450                                 l = strlen(p);
 451                         if(l > sizeof(buf) - 1)
 452                                 l = sizeof(buf) - 1;
 453                         strlcpy(buf, p, l + 1); // strlcpy needs a + 1 as it includes the newline!
 454
 455                         Cmd_ExecuteString(buf, src_command);
 456
 457                         p += l;
 458                         if(*p == '\n')
 459                                 ++p; // skip the newline and continue
 460                         else
 461                                 break; // end of string or overflow
 462                 }
 463                 Cmd_ExecuteString("curl --clear_autodownload", src_command); // don't inhibit CSQC loading
 464                 return;
 465         }
 466
 467         if(!cl.csqc_loaded)
 468         {
 469                 Cbuf_AddText(msg);
 470                 return;
 471         }
 472         CSQC_BEGIN
 473         if(prog->funcoffsets.CSQC_Parse_StuffCmd)
 474         {
 475                 prog->globals.client->time = cl.time;
 476                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 477                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 478                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 479                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_StuffCmd, "QC function CSQC_Parse_StuffCmd is missing");
 480                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 481         }
 482         else
 483                 Cbuf_AddText(msg);
 484         CSQC_END
 485 }
 486
 487 static void CL_VM_Parse_Print (const char *msg)
 488 {
 489         int restorevm_tempstringsbuf_cursize;
 490         prog->globals.client->time = cl.time;
 491         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 492         restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 493         PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 494         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_Print, "QC function CSQC_Parse_Print is missing");
 495         vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 496 }
 497
 498 void CSQC_AddPrintText (const char *msg)
 499 {
 500         size_t i;
 501         if(!cl.csqc_loaded)
 502         {
 503                 Con_Print(msg);
 504                 return;
 505         }
 506         CSQC_BEGIN
 507         if(prog->funcoffsets.CSQC_Parse_Print)
 508         {
 509                 // FIXME: is this bugged?
 510                 i = strlen(msg)-1;
 511                 if(msg[i] != '\n' && msg[i] != '\r')
 512                 {
 513                         if(strlen(cl.csqc_printtextbuf)+i >= MAX_INPUTLINE)
 514                         {
 515                                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 516                                 cl.csqc_printtextbuf[0] = 0;
 517                         }
 518                         else
 519                                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 520                         return;
 521                 }
 522                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 523                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 524                 cl.csqc_printtextbuf[0] = 0;
 525         }
 526         else
 527                 Con_Print(msg);
 528         CSQC_END
 529 }
 530
 531 void CL_VM_Parse_CenterPrint (const char *msg)
 532 {
 533         int restorevm_tempstringsbuf_cursize;
 534         if(!cl.csqc_loaded)
 535         {
 536                 SCR_CenterPrint(msg);
 537                 return;
 538         }
 539         CSQC_BEGIN
 540         if(prog->funcoffsets.CSQC_Parse_CenterPrint)
 541         {
 542                 prog->globals.client->time = cl.time;
 543                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 544                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 545                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 546                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_CenterPrint, "QC function CSQC_Parse_CenterPrint is missing");
 547                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 548         }
 549         else
 550                 SCR_CenterPrint(msg);
 551         CSQC_END
 552 }
 553
 554 void CL_VM_UpdateIntermissionState (int intermission)
 555 {
 556         prvm_eval_t *val;
 557         if(cl.csqc_loaded)
 558         {
 559                 CSQC_BEGIN
 560                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.intermission);
 561                 if(val)
 562                         val->_float = intermission;
 563                 CSQC_END
 564         }
 565 }
 566 void CL_VM_UpdateShowingScoresState (int showingscores)
 567 {
 568         prvm_eval_t *val;
 569         if(cl.csqc_loaded)
 570         {
 571                 CSQC_BEGIN
 572                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.sb_showscores);
 573                 if(val)
 574                         val->_float = showingscores;
 575                 CSQC_END
 576         }
 577 }
 578 qboolean CL_VM_Event_Sound(int sound_num, float volume, int channel, float attenuation, int ent, vec3_t pos)
 579 {
 580         qboolean r = false;
 581         if(cl.csqc_loaded)
 582         {
 583                 CSQC_BEGIN
 584                 if(prog->funcoffsets.CSQC_Event_Sound)
 585                 {
 586                         prog->globals.client->time = cl.time;
 587                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 588                         PRVM_G_FLOAT(OFS_PARM0) = ent;
 589                         PRVM_G_FLOAT(OFS_PARM1) = channel;
 590                         PRVM_G_INT(OFS_PARM2) = PRVM_SetTempString(cl.sound_name[sound_num] );
 591                         PRVM_G_FLOAT(OFS_PARM3) = volume;
 592                         PRVM_G_FLOAT(OFS_PARM4) = attenuation;
 593                         VectorCopy(pos, PRVM_G_VECTOR(OFS_PARM5) );
 594                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event_Sound, "QC function CSQC_Event_Sound is missing");
 595                         r = CSQC_RETURNVAL != 0;
 596                 }
 597                 CSQC_END
 598         }
 599
 600         return r;
 601 }
 602 void CL_VM_UpdateCoopDeathmatchGlobals (int gametype)
 603 {
 604         // Avoid global names for clean(er) coding
 605         int localcoop;
 606         int localdeathmatch;
 607
 608         prvm_eval_t *val;
 609         if(cl.csqc_loaded)
 610         {
 611                 if(gametype == GAME_COOP)
 612                 {
 613                         localcoop = 1;
 614                         localdeathmatch = 0;
 615                 }
 616                 else
 617                 if(gametype == GAME_DEATHMATCH)
 618                 {
 619                         localcoop = 0;
 620                         localdeathmatch = 1;
 621                 }
 622                 else
 623                 {
 624                         // How did the ServerInfo send an unknown gametype?
 625                         // Better just assign the globals as 0...
 626                         localcoop = 0;
 627                         localdeathmatch = 0;
 628                 }
 629                 CSQC_BEGIN
 630                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.coop);
 631                 if(val)
 632                         val->_float = localcoop;
 633                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.deathmatch);
 634                 if(val)
 635                         val->_float = localdeathmatch;
 636                 CSQC_END
 637         }
 638 }
 639 float CL_VM_Event (float event)         //[515]: needed ? I'd say "YES", but don't know for what :D
 640 {
 641         float r = 0;
 642         if(!cl.csqc_loaded)
 643                 return 0;
 644         CSQC_BEGIN
 645         if(prog->funcoffsets.CSQC_Event)
 646         {
 647                 prog->globals.client->time = cl.time;
 648                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 649                 PRVM_G_FLOAT(OFS_PARM0) = event;
 650                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event, "QC function CSQC_Event is missing");
 651                 r = CSQC_RETURNVAL;
 652         }
 653         CSQC_END
 654         return r;
 655 }
 656
 657 void CSQC_ReadEntities (void)
 658 {
 659         unsigned short entnum, oldself, realentnum;
 660         if(!cl.csqc_loaded)
 661         {
 662                 Host_Error ("CSQC_ReadEntities: CSQC is not loaded");
 663                 return;
 664         }
 665
 666         CSQC_BEGIN
 667                 prog->globals.client->time = cl.time;
 668                 oldself = prog->globals.client->self;
 669                 while(1)
 670                 {
 671                         entnum = MSG_ReadShort();
 672                         if(!entnum || msg_badread)
 673                                 return;
 674                         realentnum = entnum & 0x7FFF;
 675                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum];
 676                         if(entnum & 0x8000)
 677                         {
 678                                 if(prog->globals.client->self)
 679                                 {
 680                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Remove, "QC function CSQC_Ent_Remove is missing");
 681                                         cl.csqc_server2csqcentitynumber[realentnum] = 0;
 682                                 }
 683                                 else
 684                                 {
 685                                         // LordHavoc: removing an entity that is already gone on
 686                                         // the csqc side is possible for legitimate reasons (such
 687                                         // as a repeat of the remove message), so no warning is
 688                                         // needed
 689                                         //Con_Printf("Bad csqc_server2csqcentitynumber map\n"); //[515]: never happens ?
 690                                 }
 691                         }
 692                         else
 693                         {
 694                                 if(!prog->globals.client->self)
 695                                 {
 696                                         if(!prog->funcoffsets.CSQC_Ent_Spawn)
 697                                         {
 698                                                 prvm_edict_t    *ed;
 699                                                 ed = PRVM_ED_Alloc();
 700                                                 ed->fields.client->entnum = realentnum;
 701                                                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT_TO_PROG(ed);
 702                                         }
 703                                         else
 704                                         {
 705                                                 // entity( float entnum ) CSQC_Ent_Spawn;
 706                                                 // the qc function should set entnum, too (this way it also can return world [2/1/2008 Andreas]
 707                                                 PRVM_G_FLOAT(OFS_PARM0) = (float) realentnum;
 708                                                 // make sure no one gets wrong ideas
 709                                                 prog->globals.client->self = 0;
 710                                                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Spawn, "QC function CSQC_Ent_Spawn is missing");
 711                                                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT( PRVM_G_INT( OFS_RETURN ) );
 712                                         }
 713                                         PRVM_G_FLOAT(OFS_PARM0) = 1;
 714                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 715                                 }
 716                                 else {
 717                                         PRVM_G_FLOAT(OFS_PARM0) = 0;
 718                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 719                                 }
 720                         }
 721                 }
 722                 prog->globals.client->self = oldself;
 723         CSQC_END
 724 }
 725
 726 void CL_VM_CB_BeginIncreaseEdicts(void)
 727 {
 728         // links don't survive the transition, so unlink everything
 729         World_UnlinkAll(&cl.world);
 730 }
 731
 732 void CL_VM_CB_EndIncreaseEdicts(void)
 733 {
 734         int i;
 735         prvm_edict_t *ent;
 736
 737         // link every entity except world
 738         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
 739                 if (!ent->priv.server->free)
 740                         CL_LinkEdict(ent);
 741 }
 742
 743 void CL_VM_CB_InitEdict(prvm_edict_t *e)
 744 {
 745         int edictnum = PRVM_NUM_FOR_EDICT(e);
 746         entity_render_t *entrender;
 747         CL_ExpandCSQCRenderEntities(edictnum);
 748         entrender = cl.csqcrenderentities + edictnum;
 749         e->priv.server->move = false; // don't move on first frame
 750         memset(entrender, 0, sizeof(*entrender));
 751         entrender->shadertime = cl.time;
 752 }
 753
 754 extern void R_DecalSystem_Reset(decalsystem_t *decalsystem);
 755
 756 void CL_VM_CB_FreeEdict(prvm_edict_t *ed)
 757 {
 758         entity_render_t *entrender = cl.csqcrenderentities + PRVM_NUM_FOR_EDICT(ed);
 759         R_DecalSystem_Reset(&entrender->decalsystem);
 760         memset(entrender, 0, sizeof(*entrender));
 761         World_UnlinkEdict(ed);
 762         memset(ed->fields.client, 0, sizeof(*ed->fields.client));
 763         VM_RemoveEdictSkeleton(ed);
 764         World_Physics_RemoveFromEntity(&cl.world, ed);
 765         World_Physics_RemoveJointFromEntity(&cl.world, ed);
 766 }
 767
 768 void CL_VM_CB_CountEdicts(void)
 769 {
 770         int             i;
 771         prvm_edict_t    *ent;
 772         int             active = 0, models = 0, solid = 0;
 773
 774         for (i=0 ; i<prog->num_edicts ; i++)
 775         {
 776                 ent = PRVM_EDICT_NUM(i);
 777                 if (ent->priv.server->free)
 778                         continue;
 779                 active++;
 780                 if (ent->fields.client->solid)
 781                         solid++;
 782                 if (ent->fields.client->model)
 783                         models++;
 784         }
 785
 786         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
 787         Con_Printf("active    :%3i\n", active);
 788         Con_Printf("view      :%3i\n", models);
 789         Con_Printf("touch     :%3i\n", solid);
 790 }
 791
 792 qboolean CL_VM_CB_LoadEdict(prvm_edict_t *ent)
 793 {
 794         return true;
 795 }
 796
 797 void Cmd_ClearCsqcFuncs (void);
 798
 799 // returns true if the packet is valid, false if end of file is reached
 800 // used for dumping the CSQC download into demo files
 801 qboolean MakeDownloadPacket(const char *filename, unsigned char *data, unsigned long len, int crc, int cnt, sizebuf_t *buf, int protocol)
 802 {
 803         int packetsize = buf->maxsize - 7; // byte short long
 804         int npackets = (len + packetsize - 1) / (packetsize);
 805
 806         if(protocol == PROTOCOL_QUAKEWORLD)
 807                 return false; // CSQC can't run in QW anyway
 808
 809         SZ_Clear(buf);
 810         if(cnt == 0)
 811         {
 812                 MSG_WriteByte(buf, svc_stufftext);
 813                 MSG_WriteString(buf, va("\ncl_downloadbegin %lu %s\n", len, filename));
 814                 return true;
 815         }
 816         else if(cnt >= 1 && cnt <= npackets)
 817         {
 818                 unsigned long thispacketoffset = (cnt - 1) * packetsize;
 819                 int thispacketsize = len - thispacketoffset;
 820                 if(thispacketsize > packetsize)
 821                         thispacketsize = packetsize;
 822
 823                 MSG_WriteByte(buf, svc_downloaddata);
 824                 MSG_WriteLong(buf, thispacketoffset);
 825                 MSG_WriteShort(buf, thispacketsize);
 826                 SZ_Write(buf, data + thispacketoffset, thispacketsize);
 827
 828                 return true;
 829         }
 830         else if(cnt == npackets + 1)
 831         {
 832                 MSG_WriteByte(buf, svc_stufftext);
 833                 MSG_WriteString(buf, va("\ncl_downloadfinished %lu %d\n", len, crc));
 834                 return true;
 835         }
 836         return false;
 837 }
 838
 839 void CL_VM_Init (void)
 840 {
 841         const char* csprogsfn;
 842         unsigned char *csprogsdata;
 843         fs_offset_t csprogsdatasize;
 844         int csprogsdatacrc, requiredcrc;
 845         int requiredsize;
 846         prvm_eval_t *val;
 847
 848         // reset csqc_progcrc after reading it, so that changing servers doesn't
 849         // expect csqc on the next server
 850         requiredcrc = csqc_progcrc.integer;
 851         requiredsize = csqc_progsize.integer;
 852         Cvar_SetValueQuick(&csqc_progcrc, -1);
 853         Cvar_SetValueQuick(&csqc_progsize, -1);
 854
 855         // if the server is not requesting a csprogs, then we're done here
 856         if (requiredcrc < 0)
 857                 return;
 858
 859         // see if the requested csprogs.dat file matches the requested crc
 860         csprogsdatacrc = -1;
 861         csprogsfn = va("dlcache/%s.%i.%i", csqc_progname.string, requiredsize, requiredcrc);
 862         csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
 863         if (!csprogsdata)
 864         {
 865                 csprogsfn = csqc_progname.string;
 866                 csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
 867         }
 868         if (csprogsdata)
 869         {
 870                 csprogsdatacrc = CRC_Block(csprogsdata, csprogsdatasize);
 871                 if (csprogsdatacrc != requiredcrc || csprogsdatasize != requiredsize)
 872                 {
 873                         if (cls.demoplayback)
 874                         {
 875                                 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);
 876                                 // Mem_Free(csprogsdata);
 877                                 // return;
 878                                 // We WANT to continue here, and play the demo with different csprogs!
 879                                 // After all, this is just a warning. Sure things may go wrong from here.
 880                         }
 881                         else
 882                         {
 883                                 Mem_Free(csprogsdata);
 884                                 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);
 885                                 CL_Disconnect();
 886                                 return;
 887                         }
 888                 }
 889         }
 890         else
 891         {
 892                 if (requiredcrc >= 0)
 893                 {
 894                         if (cls.demoplayback)
 895                                 Con_Printf("CL_VM_Init: demo requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 896                         else
 897                                 Con_Printf("CL_VM_Init: server requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 898                         CL_Disconnect();
 899                 }
 900                 return;
 901         }
 902
 903         PRVM_Begin;
 904         PRVM_InitProg(PRVM_CLIENTPROG);
 905
 906         // allocate the mempools
 907         prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
 908         prog->headercrc = CL_PROGHEADER_CRC;
 909         prog->edictprivate_size = 0; // no private struct used
 910         prog->name = CL_NAME;
 911         prog->num_edicts = 1;
 912         prog->max_edicts = 512;
 913         prog->limit_edicts = CL_MAX_EDICTS;
 914         prog->reserved_edicts = 0;
 915         prog->edictprivate_size = sizeof(edict_engineprivate_t);
 916         // TODO: add a shared extension string #define and add real support for csqc extension strings [12/5/2007 Black]
 917         prog->extensionstring = vm_sv_extensions;
 918         prog->builtins = vm_cl_builtins;
 919         prog->numbuiltins = vm_cl_numbuiltins;
 920         prog->begin_increase_edicts = CL_VM_CB_BeginIncreaseEdicts;
 921         prog->end_increase_edicts = CL_VM_CB_EndIncreaseEdicts;
 922         prog->init_edict = CL_VM_CB_InitEdict;
 923         prog->free_edict = CL_VM_CB_FreeEdict;
 924         prog->count_edicts = CL_VM_CB_CountEdicts;
 925         prog->load_edict = CL_VM_CB_LoadEdict;
 926         prog->init_cmd = VM_CL_Cmd_Init;
 927         prog->reset_cmd = VM_CL_Cmd_Reset;
 928         prog->error_cmd = CL_VM_Error;
 929         prog->ExecuteProgram = CLVM_ExecuteProgram;
 930
 931         PRVM_LoadProgs(csprogsfn, cl_numrequiredfunc, cl_required_func, 0, NULL, 0, NULL);
 932
 933         if (!prog->loaded)
 934         {
 935                 CL_VM_Error("CSQC %s ^2failed to load\n", csprogsfn);
 936                 if(!sv.active)
 937                         CL_Disconnect();
 938                 Mem_Free(csprogsdata);
 939                 return;
 940         }
 941
 942         Con_DPrintf("CSQC %s ^5loaded (crc=%i, size=%i)\n", csprogsfn, csprogsdatacrc, (int)csprogsdatasize);
 943
 944         if(cls.demorecording)
 945         {
 946                 if(cls.demo_lastcsprogssize != csprogsdatasize || cls.demo_lastcsprogscrc != csprogsdatacrc)
 947                 {
 948                         int i;
 949                         char buf[NET_MAXMESSAGE];
 950                         sizebuf_t sb;
 951                         unsigned char *demobuf; fs_offset_t demofilesize;
 952
 953                         sb.data = (unsigned char *) buf;
 954                         sb.maxsize = sizeof(buf);
 955                         i = 0;
 956
 957                         CL_CutDemo(&demobuf, &demofilesize);
 958                         while(MakeDownloadPacket(csqc_progname.string, csprogsdata, csprogsdatasize, csprogsdatacrc, i++, &sb, cls.protocol))
 959                                 CL_WriteDemoMessage(&sb);
 960                         CL_PasteDemo(&demobuf, &demofilesize);
 961
 962                         cls.demo_lastcsprogssize = csprogsdatasize;
 963                         cls.demo_lastcsprogscrc = csprogsdatacrc;
 964                 }
 965         }
 966         Mem_Free(csprogsdata);
 967
 968         // check if OP_STATE animation is possible in this dat file
 969         if (prog->fieldoffsets.nextthink >= 0 && prog->fieldoffsets.frame >= 0 && prog->fieldoffsets.think >= 0 && prog->globaloffsets.self >= 0)
 970                 prog->flag |= PRVM_OP_STATE;
 971
 972         // set time
 973         prog->globals.client->time = cl.time;
 974         prog->globals.client->self = 0;
 975
 976         prog->globals.client->mapname = cl.worldmodel ? PRVM_SetEngineString(cl.worldmodel->name) : PRVM_SetEngineString("");
 977         prog->globals.client->player_localentnum = cl.playerentity;
 978
 979         // set map description (use world entity 0)
 980         val = PRVM_EDICTFIELDVALUE(prog->edicts, prog->fieldoffsets.message);
 981         if(val)
 982                 val->string = PRVM_SetEngineString(cl.levelname);
 983         VectorCopy(cl.world.mins, prog->edicts->fields.client->mins);
 984         VectorCopy(cl.world.maxs, prog->edicts->fields.client->maxs);
 985
 986         // call the prog init
 987         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Init, "QC function CSQC_Init is missing");
 988
 989         PRVM_End;
 990         cl.csqc_loaded = true;
 991
 992         cl.csqc_vidvars.drawcrosshair = false;
 993         cl.csqc_vidvars.drawenginesbar = false;
 994
 995         // Update Coop and Deathmatch Globals (at this point the client knows them from ServerInfo)
 996         CL_VM_UpdateCoopDeathmatchGlobals(cl.gametype);
 997 }
 998
 999 void CL_VM_ShutDown (void)
1000 {
1001         Cmd_ClearCsqcFuncs();
1002         //Cvar_SetValueQuick(&csqc_progcrc, -1);
1003         //Cvar_SetValueQuick(&csqc_progsize, -1);
1004         if(!cl.csqc_loaded)
1005                 return;
1006         CSQC_BEGIN
1007                 prog->globals.client->time = cl.time;
1008                 prog->globals.client->self = 0;
1009                 if (prog->funcoffsets.CSQC_Shutdown)
1010                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Shutdown, "QC function CSQC_Shutdown is missing");
1011                 PRVM_ResetProg();
1012         CSQC_END
1013         Con_DPrint("CSQC ^1unloaded\n");
1014         cl.csqc_loaded = false;
1015 }
1016
1017 qboolean CL_VM_GetEntitySoundOrigin(int entnum, vec3_t out)
1018 {
1019         prvm_edict_t *ed;
1020         dp_model_t *mod;
1021         matrix4x4_t matrix;
1022         qboolean r = 0;
1023
1024         CSQC_BEGIN;
1025
1026         // FIXME consider attachments here!
1027
1028         ed = PRVM_EDICT_NUM(entnum - MAX_EDICTS);
1029
1030         if(!ed->priv.required->free)
1031         {
1032                 mod = CL_GetModelFromEdict(ed);
1033                 VectorCopy(ed->fields.client->origin, out);
1034                 if(CL_GetTagMatrix (&matrix, ed, 0) == 0)
1035                         Matrix4x4_OriginFromMatrix(&matrix, out);
1036                 if (mod && mod->soundfromcenter)
1037                         VectorMAMAM(1.0f, out, 0.5f, mod->normalmins, 0.5f, mod->normalmaxs, out);
1038                 r = 1;
1039         }
1040
1041         CSQC_END;
1042
1043         return r;
1044 }