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)
 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         entrender = CL_NewTempEntity(0);
 172         if (!entrender)
 173                 return false;
 174
 175         entrender->model = model;
 176         entrender->skinnum = (int)ed->fields.client->skin;
 177         entrender->effects |= entrender->model->effects;
 178         scale = 1;
 179         renderflags = 0;
 180         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.renderflags)) && val->_float)     renderflags = (int)val->_float;
 181         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.alpha)) && val->_float)           entrender->alpha = val->_float;
 182         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.scale)) && val->_float)           entrender->scale = scale = val->_float;
 183         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.colormod)) && VectorLength2(val->vector)) VectorCopy(val->vector, entrender->colormod);
 184         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.glowmod)) && VectorLength2(val->vector))  VectorCopy(val->vector, entrender->glowmod);
 185         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.effects)) && val->_float) entrender->effects |= (int)val->_float;
 186         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_entity)) && val->edict)
 187         {
 188                 int tagentity;
 189                 int tagindex = 0;
 190                 tagentity = val->edict;
 191                 if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_index)) && val->_float)
 192                         tagindex = (int)val->_float;
 193                 CL_GetTagMatrix (&tagmatrix, PRVM_PROG_TO_EDICT(tagentity), tagindex);
 194         }
 195         else
 196                 Matrix4x4_CreateIdentity(&tagmatrix);
 197         if (!VectorLength2(entrender->colormod))
 198                 VectorSet(entrender->colormod, 1, 1, 1);
 199         if (!VectorLength2(entrender->glowmod))
 200                 VectorSet(entrender->glowmod, 1, 1, 1);
 201
 202         if (renderflags & RF_USEAXIS)
 203         {
 204                 vec3_t left;
 205                 VectorNegate(prog->globals.client->v_right, left);
 206                 Matrix4x4_FromVectors(&matrix2, prog->globals.client->v_forward, left, prog->globals.client->v_up, ed->fields.client->origin);
 207                 Matrix4x4_Scale(&matrix2, scale, 1);
 208         }
 209         else
 210         {
 211                 vec3_t angles;
 212                 VectorCopy(ed->fields.client->angles, angles);
 213                 // if model is alias, reverse pitch direction
 214                 if (entrender->model->type == mod_alias)
 215                         angles[0] = -angles[0];
 216
 217                 // set up the render matrix
 218                 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);
 219         }
 220
 221         // set up the animation data
 222         // self.frame is the interpolation target (new frame)
 223         // self.frame1time is the animation base time for the interpolation target
 224         // self.frame2 is the interpolation start (previous frame)
 225         // self.frame2time is the animation base time for the interpolation start
 226         // self.lerpfrac is the interpolation strength for self.frame
 227         // 3+ are for additional blends (the main use for this feature is lerping
 228         // pitch angle on a player model where the animator set up 5 sets of
 229         // animations and the csqc simply lerps between sets)
 230         entrender->framegroupblend[0].frame = entrender->framegroupblend[1].frame = (int) ed->fields.client->frame;
 231         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2))) entrender->framegroupblend[1].frame = (int) val->_float;
 232         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame3))) entrender->framegroupblend[2].frame = (int) val->_float;
 233         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame4))) entrender->framegroupblend[3].frame = (int) val->_float;
 234         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame1time))) entrender->framegroupblend[0].start = val->_float;
 235         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2time))) entrender->framegroupblend[1].start = val->_float;
 236         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame3time))) entrender->framegroupblend[2].start = val->_float;
 237         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame4time))) entrender->framegroupblend[3].start = val->_float;
 238         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac))) entrender->framegroupblend[0].lerp = val->_float;
 239         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac3))) entrender->framegroupblend[2].lerp = val->_float;
 240         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac4))) entrender->framegroupblend[3].lerp = val->_float;
 241         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.shadertime))) entrender->shadertime = val->_float;
 242         // assume that the (missing) lerpfrac2 is whatever remains after lerpfrac+lerpfrac3+lerpfrac4 are summed
 243         entrender->framegroupblend[1].lerp = 1 - entrender->framegroupblend[0].lerp - entrender->framegroupblend[2].lerp - entrender->framegroupblend[3].lerp;
 244
 245         // concat the matrices to make the entity relative to its tag
 246         Matrix4x4_Concat(&entrender->matrix, &tagmatrix, &matrix2);
 247
 248         // transparent offset
 249         if ((renderflags & RF_USETRANSPARENTOFFSET) && (val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.transparent_offset)))
 250                 entrender->transparent_offset = val->_float;
 251
 252         if(renderflags)
 253         {
 254                 if(renderflags & RF_VIEWMODEL)  entrender->flags |= RENDER_VIEWMODEL;
 255                 if(renderflags & RF_EXTERNALMODEL)entrender->flags |= RENDER_EXTERIORMODEL;
 256                 if(renderflags & RF_NOCULL)             entrender->flags |= RENDER_NOCULL;
 257                 if(renderflags & RF_DEPTHHACK)  entrender->effects |= EF_NODEPTHTEST;
 258                 if(renderflags & RF_ADDITIVE)           entrender->effects |= EF_ADDITIVE;
 259
 260         }
 261
 262         c = (int)ed->fields.client->colormap;
 263         if (c <= 0)
 264                 CL_SetEntityColormapColors(entrender, -1);
 265         else if (c <= cl.maxclients && cl.scores != NULL)
 266                 CL_SetEntityColormapColors(entrender, cl.scores[c-1].colors);
 267         else
 268                 CL_SetEntityColormapColors(entrender, c);
 269
 270         entrender->flags &= ~(RENDER_SHADOW | RENDER_LIGHT | RENDER_NOSELFSHADOW);
 271         // either fullbright or lit
 272         if(!r_fullbright.integer)
 273         {
 274                 if (!(entrender->effects & EF_FULLBRIGHT))
 275                         entrender->flags |= RENDER_LIGHT;
 276                 else if(r_equalize_entities_fullbright.integer)
 277                         entrender->flags |= RENDER_LIGHT | RENDER_EQUALIZE;
 278         }
 279         // hide player shadow during intermission or nehahra movie
 280         if (!(entrender->effects & (EF_NOSHADOW | EF_ADDITIVE | EF_NODEPTHTEST))
 281          &&  (entrender->alpha >= 1)
 282          && !(entrender->flags & RENDER_VIEWMODEL)
 283          && (!(entrender->flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 284                 entrender->flags |= RENDER_SHADOW;
 285         if (entrender->flags & RENDER_VIEWMODEL)
 286                 entrender->flags |= RENDER_NOSELFSHADOW;
 287         if (entrender->effects & EF_NOSELFSHADOW)
 288                 entrender->flags |= RENDER_NOSELFSHADOW;
 289
 290         // make the other useful stuff
 291         CL_UpdateRenderEntity(entrender);
 292
 293         return true;
 294 }
 295
 296 qboolean CL_VM_InputEvent (qboolean down, int key, int ascii)
 297 {
 298         qboolean r;
 299
 300         if(!cl.csqc_loaded)
 301                 return false;
 302
 303         CSQC_BEGIN
 304                 if (!prog->funcoffsets.CSQC_InputEvent)
 305                         r = false;
 306                 else
 307                 {
 308                         prog->globals.client->time = cl.time;
 309                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 310                         PRVM_G_FLOAT(OFS_PARM0) = !down; // 0 is down, 1 is up
 311                         PRVM_G_FLOAT(OFS_PARM1) = key;
 312                         PRVM_G_FLOAT(OFS_PARM2) = ascii;
 313                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_InputEvent, "QC function CSQC_InputEvent is missing");
 314                         r = CSQC_RETURNVAL != 0;
 315                 }
 316         CSQC_END
 317         return r;
 318 }
 319
 320 qboolean CL_VM_UpdateView (void)
 321 {
 322         vec3_t emptyvector;
 323         emptyvector[0] = 0;
 324         emptyvector[1] = 0;
 325         emptyvector[2] = 0;
 326 //      vec3_t oldangles;
 327         if(!cl.csqc_loaded)
 328                 return false;
 329         CSQC_BEGIN
 330                 //VectorCopy(cl.viewangles, oldangles);
 331                 prog->globals.client->time = cl.time;
 332                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 333                 CSQC_SetGlobals();
 334                 // clear renderable entity and light lists to prevent crashes if the
 335                 // CSQC_UpdateView function does not call R_ClearScene as it should
 336                 r_refdef.scene.numentities = 0;
 337                 r_refdef.scene.numlights = 0;
 338                 // pass in width and height as parameters (EXT_CSQC_1)
 339                 PRVM_G_FLOAT(OFS_PARM0) = vid.width;
 340                 PRVM_G_FLOAT(OFS_PARM1) = vid.height;
 341                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_UpdateView, "QC function CSQC_UpdateView is missing");
 342                 //VectorCopy(oldangles, cl.viewangles);
 343                 // Dresk : Reset Dmg Globals Here
 344                 CL_VM_UpdateDmgGlobals(0, 0, emptyvector);
 345         CSQC_END
 346         return true;
 347 }
 348
 349 extern sizebuf_t vm_tempstringsbuf;
 350 qboolean CL_VM_ConsoleCommand (const char *cmd)
 351 {
 352         int restorevm_tempstringsbuf_cursize;
 353         qboolean r = false;
 354         if(!cl.csqc_loaded)
 355                 return false;
 356         CSQC_BEGIN
 357         if (prog->funcoffsets.CSQC_ConsoleCommand)
 358         {
 359                 prog->globals.client->time = cl.time;
 360                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 361                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 362                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(cmd);
 363                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_ConsoleCommand, "QC function CSQC_ConsoleCommand is missing");
 364                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 365                 r = CSQC_RETURNVAL != 0;
 366         }
 367         CSQC_END
 368         return r;
 369 }
 370
 371 qboolean CL_VM_Parse_TempEntity (void)
 372 {
 373         int                     t;
 374         qboolean        r = false;
 375         if(!cl.csqc_loaded)
 376                 return false;
 377         CSQC_BEGIN
 378         if(prog->funcoffsets.CSQC_Parse_TempEntity)
 379         {
 380                 t = msg_readcount;
 381                 prog->globals.client->time = cl.time;
 382                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 383                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_TempEntity, "QC function CSQC_Parse_TempEntity is missing");
 384                 r = CSQC_RETURNVAL != 0;
 385                 if(!r)
 386                 {
 387                         msg_readcount = t;
 388                         msg_badread = false;
 389                 }
 390         }
 391         CSQC_END
 392         return r;
 393 }
 394
 395 void CL_VM_Parse_StuffCmd (const char *msg)
 396 {
 397         int restorevm_tempstringsbuf_cursize;
 398         if(msg[0] == 'c')
 399         if(msg[1] == 's')
 400         if(msg[2] == 'q')
 401         if(msg[3] == 'c')
 402         {
 403                 // if this is setting a csqc variable, deprotect csqc_progcrc
 404                 // temporarily so that it can be set by the cvar command,
 405                 // and then reprotect it afterwards
 406                 int crcflags = csqc_progcrc.flags;
 407                 int sizeflags = csqc_progcrc.flags;
 408                 csqc_progcrc.flags &= ~CVAR_READONLY;
 409                 csqc_progsize.flags &= ~CVAR_READONLY;
 410                 Cmd_ExecuteString (msg, src_command);
 411                 csqc_progcrc.flags = crcflags;
 412                 csqc_progsize.flags = sizeflags;
 413                 return;
 414         }
 415
 416         if(cls.demoplayback)
 417         if(!strncmp(msg, "curl --clear_autodownload\ncurl --pak --forthismap --as ", 55))
 418         {
 419                 // special handling for map download commands
 420                 // run these commands IMMEDIATELY, instead of waiting for a client frame
 421                 // that way, there is no black screen when playing back demos
 422                 // I know this is a really ugly hack, but I can't think of any better way
 423                 // FIXME find the actual CAUSE of this, and make demo playback WAIT
 424                 // until all maps are loaded, then remove this hack
 425
 426                 char buf[MAX_INPUTLINE];
 427                 const char *p, *q;
 428                 size_t l;
 429
 430                 p = msg;
 431
 432                 for(;;)
 433                 {
 434                         q = strchr(p, '\n');
 435                         if(q)
 436                                 l = q - p;
 437                         else
 438                                 l = strlen(p);
 439                         if(l > sizeof(buf) - 1)
 440                                 l = sizeof(buf) - 1;
 441                         strlcpy(buf, p, l + 1); // strlcpy needs a + 1 as it includes the newline!
 442
 443                         Cmd_ExecuteString(buf, src_command);
 444
 445                         p += l;
 446                         if(*p == '\n')
 447                                 ++p; // skip the newline and continue
 448                         else
 449                                 break; // end of string or overflow
 450                 }
 451                 Cmd_ExecuteString("curl --clear_autodownload", src_command); // don't inhibit CSQC loading
 452                 return;
 453         }
 454
 455         if(!cl.csqc_loaded)
 456         {
 457                 Cbuf_AddText(msg);
 458                 return;
 459         }
 460         CSQC_BEGIN
 461         if(prog->funcoffsets.CSQC_Parse_StuffCmd)
 462         {
 463                 prog->globals.client->time = cl.time;
 464                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 465                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 466                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 467                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_StuffCmd, "QC function CSQC_Parse_StuffCmd is missing");
 468                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 469         }
 470         else
 471                 Cbuf_AddText(msg);
 472         CSQC_END
 473 }
 474
 475 static void CL_VM_Parse_Print (const char *msg)
 476 {
 477         int restorevm_tempstringsbuf_cursize;
 478         prog->globals.client->time = cl.time;
 479         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 480         restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 481         PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 482         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_Print, "QC function CSQC_Parse_Print is missing");
 483         vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 484 }
 485
 486 void CSQC_AddPrintText (const char *msg)
 487 {
 488         size_t i;
 489         if(!cl.csqc_loaded)
 490         {
 491                 Con_Print(msg);
 492                 return;
 493         }
 494         CSQC_BEGIN
 495         if(prog->funcoffsets.CSQC_Parse_Print)
 496         {
 497                 // FIXME: is this bugged?
 498                 i = strlen(msg)-1;
 499                 if(msg[i] != '\n' && msg[i] != '\r')
 500                 {
 501                         if(strlen(cl.csqc_printtextbuf)+i >= MAX_INPUTLINE)
 502                         {
 503                                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 504                                 cl.csqc_printtextbuf[0] = 0;
 505                         }
 506                         else
 507                                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 508                         return;
 509                 }
 510                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 511                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 512                 cl.csqc_printtextbuf[0] = 0;
 513         }
 514         else
 515                 Con_Print(msg);
 516         CSQC_END
 517 }
 518
 519 void CL_VM_Parse_CenterPrint (const char *msg)
 520 {
 521         int restorevm_tempstringsbuf_cursize;
 522         if(!cl.csqc_loaded)
 523         {
 524                 SCR_CenterPrint(msg);
 525                 return;
 526         }
 527         CSQC_BEGIN
 528         if(prog->funcoffsets.CSQC_Parse_CenterPrint)
 529         {
 530                 prog->globals.client->time = cl.time;
 531                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 532                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 533                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 534                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_CenterPrint, "QC function CSQC_Parse_CenterPrint is missing");
 535                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 536         }
 537         else
 538                 SCR_CenterPrint(msg);
 539         CSQC_END
 540 }
 541
 542 void CL_VM_UpdateIntermissionState (int intermission)
 543 {
 544         prvm_eval_t *val;
 545         if(cl.csqc_loaded)
 546         {
 547                 CSQC_BEGIN
 548                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.intermission);
 549                 if(val)
 550                         val->_float = intermission;
 551                 CSQC_END
 552         }
 553 }
 554 void CL_VM_UpdateShowingScoresState (int showingscores)
 555 {
 556         prvm_eval_t *val;
 557         if(cl.csqc_loaded)
 558         {
 559                 CSQC_BEGIN
 560                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.sb_showscores);
 561                 if(val)
 562                         val->_float = showingscores;
 563                 CSQC_END
 564         }
 565 }
 566 qboolean CL_VM_Event_Sound(int sound_num, float volume, int channel, float attenuation, int ent, vec3_t pos)
 567 {
 568         qboolean r = false;
 569         if(cl.csqc_loaded)
 570         {
 571                 CSQC_BEGIN
 572                 if(prog->funcoffsets.CSQC_Event_Sound)
 573                 {
 574                         prog->globals.client->time = cl.time;
 575                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 576                         PRVM_G_FLOAT(OFS_PARM0) = ent;
 577                         PRVM_G_FLOAT(OFS_PARM1) = channel;
 578                         PRVM_G_INT(OFS_PARM2) = PRVM_SetTempString(cl.sound_name[sound_num] );
 579                         PRVM_G_FLOAT(OFS_PARM3) = volume;
 580                         PRVM_G_FLOAT(OFS_PARM4) = attenuation;
 581                         VectorCopy(pos, PRVM_G_VECTOR(OFS_PARM5) );
 582                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event_Sound, "QC function CSQC_Event_Sound is missing");
 583                         r = CSQC_RETURNVAL != 0;
 584                 }
 585                 CSQC_END
 586         }
 587
 588         return r;
 589 }
 590 void CL_VM_UpdateCoopDeathmatchGlobals (int gametype)
 591 {
 592         // Avoid global names for clean(er) coding
 593         int localcoop;
 594         int localdeathmatch;
 595
 596         prvm_eval_t *val;
 597         if(cl.csqc_loaded)
 598         {
 599                 if(gametype == GAME_COOP)
 600                 {
 601                         localcoop = 1;
 602                         localdeathmatch = 0;
 603                 }
 604                 else
 605                 if(gametype == GAME_DEATHMATCH)
 606                 {
 607                         localcoop = 0;
 608                         localdeathmatch = 1;
 609                 }
 610                 else
 611                 {
 612                         // How did the ServerInfo send an unknown gametype?
 613                         // Better just assign the globals as 0...
 614                         localcoop = 0;
 615                         localdeathmatch = 0;
 616                 }
 617                 CSQC_BEGIN
 618                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.coop);
 619                 if(val)
 620                         val->_float = localcoop;
 621                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.deathmatch);
 622                 if(val)
 623                         val->_float = localdeathmatch;
 624                 CSQC_END
 625         }
 626 }
 627 float CL_VM_Event (float event)         //[515]: needed ? I'd say "YES", but don't know for what :D
 628 {
 629         float r = 0;
 630         if(!cl.csqc_loaded)
 631                 return 0;
 632         CSQC_BEGIN
 633         if(prog->funcoffsets.CSQC_Event)
 634         {
 635                 prog->globals.client->time = cl.time;
 636                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 637                 PRVM_G_FLOAT(OFS_PARM0) = event;
 638                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event, "QC function CSQC_Event is missing");
 639                 r = CSQC_RETURNVAL;
 640         }
 641         CSQC_END
 642         return r;
 643 }
 644
 645 void CSQC_ReadEntities (void)
 646 {
 647         unsigned short entnum, oldself, realentnum;
 648         if(!cl.csqc_loaded)
 649         {
 650                 Host_Error ("CSQC_ReadEntities: CSQC is not loaded");
 651                 return;
 652         }
 653
 654         CSQC_BEGIN
 655                 prog->globals.client->time = cl.time;
 656                 oldself = prog->globals.client->self;
 657                 while(1)
 658                 {
 659                         entnum = MSG_ReadShort();
 660                         if(!entnum || msg_badread)
 661                                 return;
 662                         realentnum = entnum & 0x7FFF;
 663                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum];
 664                         if(entnum & 0x8000)
 665                         {
 666                                 if(prog->globals.client->self)
 667                                 {
 668                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Remove, "QC function CSQC_Ent_Remove is missing");
 669                                         cl.csqc_server2csqcentitynumber[realentnum] = 0;
 670                                 }
 671                                 else
 672                                 {
 673                                         // LordHavoc: removing an entity that is already gone on
 674                                         // the csqc side is possible for legitimate reasons (such
 675                                         // as a repeat of the remove message), so no warning is
 676                                         // needed
 677                                         //Con_Printf("Bad csqc_server2csqcentitynumber map\n"); //[515]: never happens ?
 678                                 }
 679                         }
 680                         else
 681                         {
 682                                 if(!prog->globals.client->self)
 683                                 {
 684                                         if(!prog->funcoffsets.CSQC_Ent_Spawn)
 685                                         {
 686                                                 prvm_edict_t    *ed;
 687                                                 ed = PRVM_ED_Alloc();
 688                                                 ed->fields.client->entnum = realentnum;
 689                                                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT_TO_PROG(ed);
 690                                         }
 691                                         else
 692                                         {
 693                                                 // entity( float entnum ) CSQC_Ent_Spawn;
 694                                                 // the qc function should set entnum, too (this way it also can return world [2/1/2008 Andreas]
 695                                                 PRVM_G_FLOAT(OFS_PARM0) = (float) realentnum;
 696                                                 // make sure no one gets wrong ideas
 697                                                 prog->globals.client->self = 0;
 698                                                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Spawn, "QC function CSQC_Ent_Spawn is missing");
 699                                                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT( PRVM_G_INT( OFS_RETURN ) );
 700                                         }
 701                                         PRVM_G_FLOAT(OFS_PARM0) = 1;
 702                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 703                                 }
 704                                 else {
 705                                         PRVM_G_FLOAT(OFS_PARM0) = 0;
 706                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 707                                 }
 708                         }
 709                 }
 710                 prog->globals.client->self = oldself;
 711         CSQC_END
 712 }
 713
 714 void CL_VM_CB_BeginIncreaseEdicts(void)
 715 {
 716         // links don't survive the transition, so unlink everything
 717         World_UnlinkAll(&cl.world);
 718 }
 719
 720 void CL_VM_CB_EndIncreaseEdicts(void)
 721 {
 722         int i;
 723         prvm_edict_t *ent;
 724
 725         // link every entity except world
 726         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
 727                 if (!ent->priv.server->free)
 728                         CL_LinkEdict(ent);
 729 }
 730
 731 void CL_VM_CB_InitEdict(prvm_edict_t *e)
 732 {
 733         e->priv.server->move = false; // don't move on first frame
 734 }
 735
 736 void CL_VM_CB_FreeEdict(prvm_edict_t *ed)
 737 {
 738         World_UnlinkEdict(ed);
 739         memset(ed->fields.client, 0, sizeof(*ed->fields.client));
 740         World_Physics_RemoveFromEntity(&cl.world, ed);
 741         World_Physics_RemoveJointFromEntity(&cl.world, ed);
 742 }
 743
 744 void CL_VM_CB_CountEdicts(void)
 745 {
 746         int             i;
 747         prvm_edict_t    *ent;
 748         int             active = 0, models = 0, solid = 0;
 749
 750         for (i=0 ; i<prog->num_edicts ; i++)
 751         {
 752                 ent = PRVM_EDICT_NUM(i);
 753                 if (ent->priv.server->free)
 754                         continue;
 755                 active++;
 756                 if (ent->fields.client->solid)
 757                         solid++;
 758                 if (ent->fields.client->model)
 759                         models++;
 760         }
 761
 762         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
 763         Con_Printf("active    :%3i\n", active);
 764         Con_Printf("view      :%3i\n", models);
 765         Con_Printf("touch     :%3i\n", solid);
 766 }
 767
 768 qboolean CL_VM_CB_LoadEdict(prvm_edict_t *ent)
 769 {
 770         return true;
 771 }
 772
 773 void Cmd_ClearCsqcFuncs (void);
 774
 775 // returns true if the packet is valid, false if end of file is reached
 776 // used for dumping the CSQC download into demo files
 777 qboolean MakeDownloadPacket(const char *filename, unsigned char *data, unsigned long len, int crc, int cnt, sizebuf_t *buf, int protocol)
 778 {
 779         int packetsize = buf->maxsize - 7; // byte short long
 780         int npackets = (len + packetsize - 1) / (packetsize);
 781
 782         if(protocol == PROTOCOL_QUAKEWORLD)
 783                 return false; // CSQC can't run in QW anyway
 784
 785         SZ_Clear(buf);
 786         if(cnt == 0)
 787         {
 788                 MSG_WriteByte(buf, svc_stufftext);
 789                 MSG_WriteString(buf, va("\ncl_downloadbegin %lu %s\n", len, filename));
 790                 return true;
 791         }
 792         else if(cnt >= 1 && cnt <= npackets)
 793         {
 794                 unsigned long thispacketoffset = (cnt - 1) * packetsize;
 795                 int thispacketsize = len - thispacketoffset;
 796                 if(thispacketsize > packetsize)
 797                         thispacketsize = packetsize;
 798
 799                 MSG_WriteByte(buf, svc_downloaddata);
 800                 MSG_WriteLong(buf, thispacketoffset);
 801                 MSG_WriteShort(buf, thispacketsize);
 802                 SZ_Write(buf, data + thispacketoffset, thispacketsize);
 803
 804                 return true;
 805         }
 806         else if(cnt == npackets + 1)
 807         {
 808                 MSG_WriteByte(buf, svc_stufftext);
 809                 MSG_WriteString(buf, va("\ncl_downloadfinished %lu %d\n", len, crc));
 810                 return true;
 811         }
 812         return false;
 813 }
 814
 815 void CL_VM_Init (void)
 816 {
 817         const char* csprogsfn;
 818         unsigned char *csprogsdata;
 819         fs_offset_t csprogsdatasize;
 820         int csprogsdatacrc, requiredcrc;
 821         int requiredsize;
 822         prvm_eval_t *val;
 823
 824         // reset csqc_progcrc after reading it, so that changing servers doesn't
 825         // expect csqc on the next server
 826         requiredcrc = csqc_progcrc.integer;
 827         requiredsize = csqc_progsize.integer;
 828         Cvar_SetValueQuick(&csqc_progcrc, -1);
 829         Cvar_SetValueQuick(&csqc_progsize, -1);
 830
 831         // if the server is not requesting a csprogs, then we're done here
 832         if (requiredcrc < 0)
 833                 return;
 834
 835         // see if the requested csprogs.dat file matches the requested crc
 836         csprogsdatacrc = -1;
 837         csprogsfn = va("dlcache/%s.%i.%i", csqc_progname.string, requiredsize, requiredcrc);
 838         csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
 839         if (!csprogsdata)
 840         {
 841                 csprogsfn = csqc_progname.string;
 842                 csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
 843         }
 844         if (csprogsdata)
 845         {
 846                 csprogsdatacrc = CRC_Block(csprogsdata, csprogsdatasize);
 847                 if (csprogsdatacrc != requiredcrc || csprogsdatasize != requiredsize)
 848                 {
 849                         if (cls.demoplayback)
 850                         {
 851                                 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);
 852                                 // Mem_Free(csprogsdata);
 853                                 // return;
 854                                 // We WANT to continue here, and play the demo with different csprogs!
 855                                 // After all, this is just a warning. Sure things may go wrong from here.
 856                         }
 857                         else
 858                         {
 859                                 Mem_Free(csprogsdata);
 860                                 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);
 861                                 CL_Disconnect();
 862                                 return;
 863                         }
 864                 }
 865         }
 866         else
 867         {
 868                 if (requiredcrc >= 0)
 869                 {
 870                         if (cls.demoplayback)
 871                                 Con_Printf("CL_VM_Init: demo requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 872                         else
 873                                 Con_Printf("CL_VM_Init: server requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 874                         CL_Disconnect();
 875                 }
 876                 return;
 877         }
 878
 879         PRVM_Begin;
 880         PRVM_InitProg(PRVM_CLIENTPROG);
 881
 882         // allocate the mempools
 883         prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
 884         prog->headercrc = CL_PROGHEADER_CRC;
 885         prog->edictprivate_size = 0; // no private struct used
 886         prog->name = CL_NAME;
 887         prog->num_edicts = 1;
 888         prog->max_edicts = 512;
 889         prog->limit_edicts = CL_MAX_EDICTS;
 890         prog->reserved_edicts = 0;
 891         prog->edictprivate_size = sizeof(edict_engineprivate_t);
 892         // TODO: add a shared extension string #define and add real support for csqc extension strings [12/5/2007 Black]
 893         prog->extensionstring = vm_sv_extensions;
 894         prog->builtins = vm_cl_builtins;
 895         prog->numbuiltins = vm_cl_numbuiltins;
 896         prog->begin_increase_edicts = CL_VM_CB_BeginIncreaseEdicts;
 897         prog->end_increase_edicts = CL_VM_CB_EndIncreaseEdicts;
 898         prog->init_edict = CL_VM_CB_InitEdict;
 899         prog->free_edict = CL_VM_CB_FreeEdict;
 900         prog->count_edicts = CL_VM_CB_CountEdicts;
 901         prog->load_edict = CL_VM_CB_LoadEdict;
 902         prog->init_cmd = VM_CL_Cmd_Init;
 903         prog->reset_cmd = VM_CL_Cmd_Reset;
 904         prog->error_cmd = CL_VM_Error;
 905         prog->ExecuteProgram = CLVM_ExecuteProgram;
 906
 907         PRVM_LoadProgs(csprogsfn, cl_numrequiredfunc, cl_required_func, 0, NULL, 0, NULL);
 908
 909         if (!prog->loaded)
 910         {
 911                 CL_VM_Error("CSQC %s ^2failed to load\n", csprogsfn);
 912                 if(!sv.active)
 913                         CL_Disconnect();
 914                 Mem_Free(csprogsdata);
 915                 return;
 916         }
 917
 918         Con_Printf("CSQC %s ^5loaded (crc=%i, size=%i)\n", csprogsfn, csprogsdatacrc, (int)csprogsdatasize);
 919
 920         if(cls.demorecording)
 921         {
 922                 if(cls.demo_lastcsprogssize != csprogsdatasize || cls.demo_lastcsprogscrc != csprogsdatacrc)
 923                 {
 924                         int i;
 925                         char buf[NET_MAXMESSAGE];
 926                         sizebuf_t sb;
 927                         unsigned char *demobuf; fs_offset_t demofilesize;
 928
 929                         sb.data = (unsigned char *) buf;
 930                         sb.maxsize = sizeof(buf);
 931                         i = 0;
 932
 933                         CL_CutDemo(&demobuf, &demofilesize);
 934                         while(MakeDownloadPacket(csqc_progname.string, csprogsdata, csprogsdatasize, csprogsdatacrc, i++, &sb, cls.protocol))
 935                                 CL_WriteDemoMessage(&sb);
 936                         CL_PasteDemo(&demobuf, &demofilesize);
 937
 938                         cls.demo_lastcsprogssize = csprogsdatasize;
 939                         cls.demo_lastcsprogscrc = csprogsdatacrc;
 940                 }
 941         }
 942         Mem_Free(csprogsdata);
 943
 944         // check if OP_STATE animation is possible in this dat file
 945         if (prog->fieldoffsets.nextthink >= 0 && prog->fieldoffsets.frame >= 0 && prog->fieldoffsets.think >= 0 && prog->globaloffsets.self >= 0)
 946                 prog->flag |= PRVM_OP_STATE;
 947
 948         // set time
 949         prog->globals.client->time = cl.time;
 950         prog->globals.client->self = 0;
 951
 952         prog->globals.client->mapname = cl.worldmodel ? PRVM_SetEngineString(cl.worldmodel->name) : PRVM_SetEngineString("");
 953         prog->globals.client->player_localentnum = cl.playerentity;
 954
 955         // set map description (use world entity 0)
 956         val = PRVM_EDICTFIELDVALUE(prog->edicts, prog->fieldoffsets.message);
 957         if(val)
 958                 val->string = PRVM_SetEngineString(cl.levelname);
 959         VectorCopy(cl.world.mins, prog->edicts->fields.client->mins);
 960         VectorCopy(cl.world.maxs, prog->edicts->fields.client->maxs);
 961
 962         // call the prog init
 963         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Init, "QC function CSQC_Init is missing");
 964
 965         PRVM_End;
 966         cl.csqc_loaded = true;
 967
 968         cl.csqc_vidvars.drawcrosshair = false;
 969         cl.csqc_vidvars.drawenginesbar = false;
 970
 971         // Update Coop and Deathmatch Globals (at this point the client knows them from ServerInfo)
 972         CL_VM_UpdateCoopDeathmatchGlobals(cl.gametype);
 973 }
 974
 975 void CL_VM_ShutDown (void)
 976 {
 977         Cmd_ClearCsqcFuncs();
 978         //Cvar_SetValueQuick(&csqc_progcrc, -1);
 979         //Cvar_SetValueQuick(&csqc_progsize, -1);
 980         if(!cl.csqc_loaded)
 981                 return;
 982         CSQC_BEGIN
 983                 prog->globals.client->time = cl.time;
 984                 prog->globals.client->self = 0;
 985                 if (prog->funcoffsets.CSQC_Shutdown)
 986                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Shutdown, "QC function CSQC_Shutdown is missing");
 987                 PRVM_ResetProg();
 988         CSQC_END
 989         Con_Print("CSQC ^1unloaded\n");
 990         cl.csqc_loaded = false;
 991 }
 992
 993 qboolean CL_VM_GetEntitySoundOrigin(int entnum, vec3_t out)
 994 {
 995         prvm_edict_t *ed;
 996         dp_model_t *mod;
 997         matrix4x4_t matrix;
 998         qboolean r = 0;
 999
1000         CSQC_BEGIN;
1001
1002         // FIXME consider attachments here!
1003
1004         ed = PRVM_EDICT_NUM(entnum - 32768);
1005
1006         if(!ed->priv.required->free)
1007         {
1008                 mod = CL_GetModelFromEdict(ed);
1009                 VectorCopy(ed->fields.client->origin, out);
1010                 if(CL_GetTagMatrix (&matrix, ed, 0) == 0)
1011                         Matrix4x4_OriginFromMatrix(&matrix, out);
1012                 if (mod && mod->soundfromcenter)
1013                         VectorMAMAM(1.0f, out, 0.5f, mod->normalmins, 0.5f, mod->normalmaxs, out);
1014                 r = 1;
1015         }
1016
1017         CSQC_END;
1018
1019         return r;
1020 }