csprogs.c

   1 /*
   2 Copyright (C) 2006-2021 DarkPlaces contributors
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20
  21 #include "quakedef.h"
  22 #include "progsvm.h"
  23 #include "clprogdefs.h"
  24 #include "csprogs.h"
  25 #include "cl_collision.h"
  26 #include "snd_main.h"
  27 #include "clvm_cmds.h"
  28 #include "prvm_cmds.h"
  29
  30 //============================================================================
  31 // Client prog handling
  32 //[515]: omg !!! optimize it ! a lot of hacks here and there also :P
  33
  34 #define CSQC_RETURNVAL  prog->globals.fp[OFS_RETURN]
  35
  36 void CL_VM_PreventInformationLeaks(void)
  37 {
  38         prvm_prog_t *prog = CLVM_prog;
  39
  40         if(!prog->loaded)
  41                 return;
  42
  43         VM_ClearTraceGlobals(prog);
  44         PRVM_clientglobalfloat(trace_networkentity) = 0;
  45 }
  46
  47
  48 /** Previous DP versions declined to load csprogs if it lacked any of:
  49  * CSQC_Init, CSQC_InputEvent, CSQC_UpdateView, CSQC_ConsoleCommand
  50  * whereas in FTE and QSS-based engines the minimum is either CSQC_UpdateView
  51  * or CSQC_DrawHud (only called in CSQC_SIMPLE aka hud-only mode)
  52  * and the other funcs are optional, so we now behave the same here.
  53  */
  54 static void CL_CheckRequiredFuncs(prvm_prog_t *prog, const char *filename)
  55 {
  56         if (PRVM_ED_FindFunction(prog, "CSQC_UpdateView"))
  57                 return;
  58         else if (PRVM_ED_FindFunction(prog, "CSQC_DrawHud"))
  59                 prog->flag |= PRVM_CSQC_SIMPLE;
  60         else
  61                 prog->error_cmd("%s: no CSQC_UpdateView (EXT_CSQC) or CSQC_DrawHud (CSQC_SIMPLE) function found in %s", prog->name, filename);
  62 }
  63
  64 #define CL_REQFIELDS (sizeof(cl_reqfields) / sizeof(prvm_required_field_t))
  65
  66 prvm_required_field_t cl_reqfields[] =
  67 {
  68 #define PRVM_DECLARE_serverglobalfloat(x)
  69 #define PRVM_DECLARE_serverglobalvector(x)
  70 #define PRVM_DECLARE_serverglobalstring(x)
  71 #define PRVM_DECLARE_serverglobaledict(x)
  72 #define PRVM_DECLARE_serverglobalfunction(x)
  73 #define PRVM_DECLARE_clientglobalfloat(x)
  74 #define PRVM_DECLARE_clientglobalvector(x)
  75 #define PRVM_DECLARE_clientglobalstring(x)
  76 #define PRVM_DECLARE_clientglobaledict(x)
  77 #define PRVM_DECLARE_clientglobalfunction(x)
  78 #define PRVM_DECLARE_menuglobalfloat(x)
  79 #define PRVM_DECLARE_menuglobalvector(x)
  80 #define PRVM_DECLARE_menuglobalstring(x)
  81 #define PRVM_DECLARE_menuglobaledict(x)
  82 #define PRVM_DECLARE_menuglobalfunction(x)
  83 #define PRVM_DECLARE_serverfieldfloat(x)
  84 #define PRVM_DECLARE_serverfieldvector(x)
  85 #define PRVM_DECLARE_serverfieldstring(x)
  86 #define PRVM_DECLARE_serverfieldedict(x)
  87 #define PRVM_DECLARE_serverfieldfunction(x)
  88 #define PRVM_DECLARE_clientfieldfloat(x) {ev_float, #x },
  89 #define PRVM_DECLARE_clientfieldvector(x) {ev_vector, #x },
  90 #define PRVM_DECLARE_clientfieldstring(x) {ev_string, #x },
  91 #define PRVM_DECLARE_clientfieldedict(x) {ev_entity, #x },
  92 #define PRVM_DECLARE_clientfieldfunction(x) {ev_function, #x },
  93 #define PRVM_DECLARE_menufieldfloat(x)
  94 #define PRVM_DECLARE_menufieldvector(x)
  95 #define PRVM_DECLARE_menufieldstring(x)
  96 #define PRVM_DECLARE_menufieldedict(x)
  97 #define PRVM_DECLARE_menufieldfunction(x)
  98 #define PRVM_DECLARE_serverfunction(x)
  99 #define PRVM_DECLARE_clientfunction(x)
 100 #define PRVM_DECLARE_menufunction(x)
 101 #define PRVM_DECLARE_field(x)
 102 #define PRVM_DECLARE_global(x)
 103 #define PRVM_DECLARE_function(x)
 104 #include "prvm_offsets.h"
 105 #undef PRVM_DECLARE_serverglobalfloat
 106 #undef PRVM_DECLARE_serverglobalvector
 107 #undef PRVM_DECLARE_serverglobalstring
 108 #undef PRVM_DECLARE_serverglobaledict
 109 #undef PRVM_DECLARE_serverglobalfunction
 110 #undef PRVM_DECLARE_clientglobalfloat
 111 #undef PRVM_DECLARE_clientglobalvector
 112 #undef PRVM_DECLARE_clientglobalstring
 113 #undef PRVM_DECLARE_clientglobaledict
 114 #undef PRVM_DECLARE_clientglobalfunction
 115 #undef PRVM_DECLARE_menuglobalfloat
 116 #undef PRVM_DECLARE_menuglobalvector
 117 #undef PRVM_DECLARE_menuglobalstring
 118 #undef PRVM_DECLARE_menuglobaledict
 119 #undef PRVM_DECLARE_menuglobalfunction
 120 #undef PRVM_DECLARE_serverfieldfloat
 121 #undef PRVM_DECLARE_serverfieldvector
 122 #undef PRVM_DECLARE_serverfieldstring
 123 #undef PRVM_DECLARE_serverfieldedict
 124 #undef PRVM_DECLARE_serverfieldfunction
 125 #undef PRVM_DECLARE_clientfieldfloat
 126 #undef PRVM_DECLARE_clientfieldvector
 127 #undef PRVM_DECLARE_clientfieldstring
 128 #undef PRVM_DECLARE_clientfieldedict
 129 #undef PRVM_DECLARE_clientfieldfunction
 130 #undef PRVM_DECLARE_menufieldfloat
 131 #undef PRVM_DECLARE_menufieldvector
 132 #undef PRVM_DECLARE_menufieldstring
 133 #undef PRVM_DECLARE_menufieldedict
 134 #undef PRVM_DECLARE_menufieldfunction
 135 #undef PRVM_DECLARE_serverfunction
 136 #undef PRVM_DECLARE_clientfunction
 137 #undef PRVM_DECLARE_menufunction
 138 #undef PRVM_DECLARE_field
 139 #undef PRVM_DECLARE_global
 140 #undef PRVM_DECLARE_function
 141 };
 142
 143 #define CL_REQGLOBALS (sizeof(cl_reqglobals) / sizeof(prvm_required_field_t))
 144
 145 prvm_required_field_t cl_reqglobals[] =
 146 {
 147 #define PRVM_DECLARE_serverglobalfloat(x)
 148 #define PRVM_DECLARE_serverglobalvector(x)
 149 #define PRVM_DECLARE_serverglobalstring(x)
 150 #define PRVM_DECLARE_serverglobaledict(x)
 151 #define PRVM_DECLARE_serverglobalfunction(x)
 152 #define PRVM_DECLARE_clientglobalfloat(x) {ev_float, #x},
 153 #define PRVM_DECLARE_clientglobalvector(x) {ev_vector, #x},
 154 #define PRVM_DECLARE_clientglobalstring(x) {ev_string, #x},
 155 #define PRVM_DECLARE_clientglobaledict(x) {ev_entity, #x},
 156 #define PRVM_DECLARE_clientglobalfunction(x) {ev_function, #x},
 157 #define PRVM_DECLARE_menuglobalfloat(x)
 158 #define PRVM_DECLARE_menuglobalvector(x)
 159 #define PRVM_DECLARE_menuglobalstring(x)
 160 #define PRVM_DECLARE_menuglobaledict(x)
 161 #define PRVM_DECLARE_menuglobalfunction(x)
 162 #define PRVM_DECLARE_serverfieldfloat(x)
 163 #define PRVM_DECLARE_serverfieldvector(x)
 164 #define PRVM_DECLARE_serverfieldstring(x)
 165 #define PRVM_DECLARE_serverfieldedict(x)
 166 #define PRVM_DECLARE_serverfieldfunction(x)
 167 #define PRVM_DECLARE_clientfieldfloat(x)
 168 #define PRVM_DECLARE_clientfieldvector(x)
 169 #define PRVM_DECLARE_clientfieldstring(x)
 170 #define PRVM_DECLARE_clientfieldedict(x)
 171 #define PRVM_DECLARE_clientfieldfunction(x)
 172 #define PRVM_DECLARE_menufieldfloat(x)
 173 #define PRVM_DECLARE_menufieldvector(x)
 174 #define PRVM_DECLARE_menufieldstring(x)
 175 #define PRVM_DECLARE_menufieldedict(x)
 176 #define PRVM_DECLARE_menufieldfunction(x)
 177 #define PRVM_DECLARE_serverfunction(x)
 178 #define PRVM_DECLARE_clientfunction(x)
 179 #define PRVM_DECLARE_menufunction(x)
 180 #define PRVM_DECLARE_field(x)
 181 #define PRVM_DECLARE_global(x)
 182 #define PRVM_DECLARE_function(x)
 183 #include "prvm_offsets.h"
 184 #undef PRVM_DECLARE_serverglobalfloat
 185 #undef PRVM_DECLARE_serverglobalvector
 186 #undef PRVM_DECLARE_serverglobalstring
 187 #undef PRVM_DECLARE_serverglobaledict
 188 #undef PRVM_DECLARE_serverglobalfunction
 189 #undef PRVM_DECLARE_clientglobalfloat
 190 #undef PRVM_DECLARE_clientglobalvector
 191 #undef PRVM_DECLARE_clientglobalstring
 192 #undef PRVM_DECLARE_clientglobaledict
 193 #undef PRVM_DECLARE_clientglobalfunction
 194 #undef PRVM_DECLARE_menuglobalfloat
 195 #undef PRVM_DECLARE_menuglobalvector
 196 #undef PRVM_DECLARE_menuglobalstring
 197 #undef PRVM_DECLARE_menuglobaledict
 198 #undef PRVM_DECLARE_menuglobalfunction
 199 #undef PRVM_DECLARE_serverfieldfloat
 200 #undef PRVM_DECLARE_serverfieldvector
 201 #undef PRVM_DECLARE_serverfieldstring
 202 #undef PRVM_DECLARE_serverfieldedict
 203 #undef PRVM_DECLARE_serverfieldfunction
 204 #undef PRVM_DECLARE_clientfieldfloat
 205 #undef PRVM_DECLARE_clientfieldvector
 206 #undef PRVM_DECLARE_clientfieldstring
 207 #undef PRVM_DECLARE_clientfieldedict
 208 #undef PRVM_DECLARE_clientfieldfunction
 209 #undef PRVM_DECLARE_menufieldfloat
 210 #undef PRVM_DECLARE_menufieldvector
 211 #undef PRVM_DECLARE_menufieldstring
 212 #undef PRVM_DECLARE_menufieldedict
 213 #undef PRVM_DECLARE_menufieldfunction
 214 #undef PRVM_DECLARE_serverfunction
 215 #undef PRVM_DECLARE_clientfunction
 216 #undef PRVM_DECLARE_menufunction
 217 #undef PRVM_DECLARE_field
 218 #undef PRVM_DECLARE_global
 219 #undef PRVM_DECLARE_function
 220 };
 221
 222 void CL_VM_UpdateDmgGlobals (int dmg_take, int dmg_save, vec3_t dmg_origin)
 223 {
 224         prvm_prog_t *prog = CLVM_prog;
 225
 226         if(prog->loaded)
 227         {
 228                 PRVM_clientglobalfloat(dmg_take) = dmg_take;
 229                 PRVM_clientglobalfloat(dmg_save) = dmg_save;
 230                 VectorCopy(dmg_origin, PRVM_clientglobalvector(dmg_origin));
 231         }
 232 }
 233
 234 void CSQC_UpdateNetworkTimes(double newtime, double oldtime)
 235 {
 236         prvm_prog_t *prog = CLVM_prog;
 237
 238         if(!prog->loaded)
 239                 return;
 240
 241         PRVM_clientglobalfloat(servertime) = newtime;
 242         PRVM_clientglobalfloat(serverprevtime) = oldtime;
 243         PRVM_clientglobalfloat(serverdeltatime) = newtime - oldtime;
 244 }
 245
 246 //[515]: set globals before calling R_UpdateView, WEIRD CRAP
 247 static void CSQC_SetGlobals (double frametime)
 248 {
 249         vec3_t pmove_org;
 250         prvm_prog_t *prog = CLVM_prog;
 251
 252         PRVM_clientglobalfloat(time) = cl.time;
 253         PRVM_clientglobalfloat(cltime) = host.realtime; // Spike named it that way.
 254         PRVM_clientglobalfloat(frametime) = frametime;
 255         PRVM_clientglobalfloat(servercommandframe) = cls.servermovesequence;
 256         PRVM_clientglobalfloat(clientcommandframe) = cl.movecmd[0].sequence;
 257         VectorCopy(cl.viewangles, PRVM_clientglobalvector(input_angles));
 258         // // FIXME: this actually belongs into getinputstate().. [12/17/2007 Black]
 259         PRVM_clientglobalfloat(input_buttons) = cl.movecmd[0].buttons;
 260         VectorSet(PRVM_clientglobalvector(input_movevalues), cl.movecmd[0].forwardmove, cl.movecmd[0].sidemove, cl.movecmd[0].upmove);
 261         VectorCopy(cl.csqc_vieworiginfromengine, cl.csqc_vieworigin);
 262         VectorCopy(cl.csqc_viewanglesfromengine, cl.csqc_viewangles);
 263
 264         // LadyHavoc: Spike says not to do this, but without pmove_org the
 265         // CSQC is useless as it can't alter the view origin without
 266         // completely replacing it
 267         Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, pmove_org);
 268         VectorCopy(pmove_org, PRVM_clientglobalvector(pmove_org));
 269         VectorCopy(cl.movement_velocity, PRVM_clientglobalvector(pmove_vel));
 270         PRVM_clientglobalfloat(pmove_onground) = cl.onground;
 271         PRVM_clientglobalfloat(pmove_inwater) = cl.inwater;
 272
 273         VectorCopy(cl.viewangles, PRVM_clientglobalvector(view_angles));
 274         VectorCopy(cl.punchangle, PRVM_clientglobalvector(view_punchangle));
 275         VectorCopy(cl.punchvector, PRVM_clientglobalvector(view_punchvector));
 276         PRVM_clientglobalfloat(maxclients) = cl.maxclients;
 277
 278         PRVM_clientglobalfloat(player_localentnum) = cl.viewentity;
 279
 280         CSQC_R_RecalcView();
 281 }
 282
 283 void CSQC_Predraw (prvm_edict_t *ed)
 284 {
 285         prvm_prog_t *prog = CLVM_prog;
 286         int b;
 287         if(!PRVM_clientedictfunction(ed, predraw))
 288                 return;
 289         b = PRVM_clientglobaledict(self);
 290         PRVM_clientglobaledict(self) = PRVM_EDICT_TO_PROG(ed);
 291         prog->ExecuteProgram(prog, PRVM_clientedictfunction(ed, predraw), "CSQC_Predraw: NULL function\n");
 292         PRVM_clientglobaledict(self) = b;
 293 }
 294
 295 void CSQC_Think (prvm_edict_t *ed)
 296 {
 297         prvm_prog_t *prog = CLVM_prog;
 298         int b;
 299         if(PRVM_clientedictfunction(ed, think))
 300         if(PRVM_clientedictfloat(ed, nextthink) && PRVM_clientedictfloat(ed, nextthink) <= PRVM_clientglobalfloat(time))
 301         {
 302                 PRVM_clientedictfloat(ed, nextthink) = 0;
 303                 b = PRVM_clientglobaledict(self);
 304                 PRVM_clientglobaledict(self) = PRVM_EDICT_TO_PROG(ed);
 305                 prog->ExecuteProgram(prog, PRVM_clientedictfunction(ed, think), "CSQC_Think: NULL function\n");
 306                 PRVM_clientglobaledict(self) = b;
 307         }
 308 }
 309
 310 extern cvar_t cl_noplayershadow;
 311 qbool CSQC_AddRenderEdict(prvm_edict_t *ed, int edictnum)
 312 {
 313         prvm_prog_t *prog = CLVM_prog;
 314         int renderflags;
 315         int c;
 316         float scale;
 317         entity_render_t *entrender;
 318         model_t *model;
 319         prvm_vec3_t modellight_origin;
 320
 321         model = CL_GetModelFromEdict(ed);
 322         if (!model)
 323                 return false;
 324
 325         if (edictnum)
 326         {
 327                 if (r_refdef.scene.numentities >= r_refdef.scene.maxentities)
 328                         return false;
 329                 entrender = cl.csqcrenderentities + edictnum;
 330                 r_refdef.scene.entities[r_refdef.scene.numentities++] = entrender;
 331                 entrender->entitynumber = edictnum + MAX_EDICTS;
 332                 //entrender->shadertime = 0; // shadertime was set by spawn()
 333                 entrender->flags = 0;
 334                 entrender->effects = 0;
 335                 entrender->alpha = 1;
 336                 entrender->scale = 1;
 337                 VectorSet(entrender->colormod, 1, 1, 1);
 338                 VectorSet(entrender->glowmod, 1, 1, 1);
 339                 entrender->allowdecals = true;
 340         }
 341         else
 342         {
 343                 entrender = CL_NewTempEntity(0);
 344                 if (!entrender)
 345                         return false;
 346         }
 347
 348         entrender->userwavefunc_param[0] = PRVM_clientedictfloat(ed, userwavefunc_param0);
 349         entrender->userwavefunc_param[1] = PRVM_clientedictfloat(ed, userwavefunc_param1);
 350         entrender->userwavefunc_param[2] = PRVM_clientedictfloat(ed, userwavefunc_param2);
 351         entrender->userwavefunc_param[3] = PRVM_clientedictfloat(ed, userwavefunc_param3);
 352
 353         entrender->model = model;
 354         entrender->skinnum = (int)PRVM_clientedictfloat(ed, skin);
 355         entrender->effects |= entrender->model->effects;
 356         renderflags = (int)PRVM_clientedictfloat(ed, renderflags);
 357         entrender->alpha = PRVM_clientedictfloat(ed, alpha);
 358         entrender->scale = scale = PRVM_clientedictfloat(ed, scale);
 359         VectorCopy(PRVM_clientedictvector(ed, colormod), entrender->colormod);
 360         VectorCopy(PRVM_clientedictvector(ed, glowmod), entrender->glowmod);
 361         if(PRVM_clientedictfloat(ed, effects))  entrender->effects |= (int)PRVM_clientedictfloat(ed, effects);
 362         if (!entrender->alpha)
 363                 entrender->alpha = 1.0f;
 364         if (!entrender->scale)
 365                 entrender->scale = scale = 1.0f;
 366         if (!VectorLength2(entrender->colormod))
 367                 VectorSet(entrender->colormod, 1, 1, 1);
 368         if (!VectorLength2(entrender->glowmod))
 369                 VectorSet(entrender->glowmod, 1, 1, 1);
 370
 371         // LadyHavoc: use the CL_GetTagMatrix function on self to ensure consistent behavior (duplicate code would be bad)
 372         // this also sets the custommodellight_origin for us
 373         CL_GetTagMatrix(prog, &entrender->matrix, ed, 0, modellight_origin);
 374         VectorCopy(modellight_origin, entrender->custommodellight_origin);
 375
 376         // set up the animation data
 377         VM_GenerateFrameGroupBlend(prog, ed->priv.server->framegroupblend, ed);
 378         VM_FrameBlendFromFrameGroupBlend(ed->priv.server->frameblend, ed->priv.server->framegroupblend, model, cl.time);
 379         VM_UpdateEdictSkeleton(prog, ed, model, ed->priv.server->frameblend);
 380         if (PRVM_clientedictfloat(ed, shadertime)) // hack for csprogs.dat files that do not set shadertime, leaves the value at entity spawn time
 381                 entrender->shadertime = PRVM_clientedictfloat(ed, shadertime);
 382
 383         // transparent offset
 384         if (renderflags & RF_USETRANSPARENTOFFSET)
 385                 entrender->transparent_offset = PRVM_clientglobalfloat(transparent_offset);
 386
 387         // model light
 388         if (renderflags & RF_MODELLIGHT)
 389         {
 390                 if (PRVM_clientedictvector(ed, modellight_ambient)) VectorCopy(PRVM_clientedictvector(ed, modellight_ambient), entrender->custommodellight_ambient); else VectorClear(entrender->custommodellight_ambient);
 391                 if (PRVM_clientedictvector(ed, modellight_diffuse)) VectorCopy(PRVM_clientedictvector(ed, modellight_diffuse), entrender->custommodellight_diffuse); else VectorClear(entrender->custommodellight_diffuse);
 392                 if (PRVM_clientedictvector(ed, modellight_dir))     VectorCopy(PRVM_clientedictvector(ed, modellight_dir), entrender->custommodellight_lightdir);    else VectorClear(entrender->custommodellight_lightdir);
 393                 entrender->flags |= RENDER_CUSTOMIZEDMODELLIGHT;
 394         }
 395
 396         if(renderflags)
 397         {
 398                 if(renderflags & RF_VIEWMODEL) entrender->flags |= RENDER_VIEWMODEL | RENDER_NODEPTHTEST;
 399                 if(renderflags & RF_EXTERNALMODEL) entrender->flags |= RENDER_EXTERIORMODEL;
 400                 if(renderflags & RF_WORLDOBJECT) entrender->flags |= RENDER_WORLDOBJECT;
 401                 if(renderflags & RF_DEPTHHACK) entrender->flags |= RENDER_NODEPTHTEST;
 402                 if(renderflags & RF_ADDITIVE) entrender->flags |= RENDER_ADDITIVE;
 403                 if(renderflags & RF_DYNAMICMODELLIGHT) entrender->flags |= RENDER_DYNAMICMODELLIGHT;
 404         }
 405
 406         c = (int)PRVM_clientedictfloat(ed, colormap);
 407         if (c <= 0)
 408                 CL_SetEntityColormapColors(entrender, -1);
 409         else if (c <= cl.maxclients && cl.scores != NULL)
 410                 CL_SetEntityColormapColors(entrender, cl.scores[c-1].colors);
 411         else
 412                 CL_SetEntityColormapColors(entrender, c);
 413
 414         entrender->flags &= ~(RENDER_SHADOW | RENDER_LIGHT | RENDER_NOSELFSHADOW);
 415         // either fullbright or lit
 416         if(!r_fullbright.integer)
 417         {
 418                 if (!(entrender->effects & EF_FULLBRIGHT) && !(renderflags & RF_FULLBRIGHT))
 419                         entrender->flags |= RENDER_LIGHT;
 420         }
 421         // hide player shadow during intermission or nehahra movie
 422         if (!(entrender->effects & (EF_NOSHADOW | EF_ADDITIVE | EF_NODEPTHTEST))
 423          &&  (entrender->alpha >= 1)
 424          && !(renderflags & RF_NOSHADOW)
 425          && !(entrender->flags & RENDER_VIEWMODEL)
 426          && (!(entrender->flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 427                 entrender->flags |= RENDER_SHADOW;
 428         if (entrender->flags & RENDER_VIEWMODEL)
 429                 entrender->flags |= RENDER_NOSELFSHADOW;
 430         if (entrender->effects & EF_NOSELFSHADOW)
 431                 entrender->flags |= RENDER_NOSELFSHADOW;
 432         if (entrender->effects & EF_NODEPTHTEST)
 433                 entrender->flags |= RENDER_NODEPTHTEST;
 434         if (entrender->effects & EF_ADDITIVE)
 435                 entrender->flags |= RENDER_ADDITIVE;
 436         if (entrender->effects & EF_DOUBLESIDED)
 437                 entrender->flags |= RENDER_DOUBLESIDED;
 438         if (entrender->effects & EF_DYNAMICMODELLIGHT)
 439                 entrender->flags |= RENDER_DYNAMICMODELLIGHT;
 440
 441         // make the other useful stuff
 442         memcpy(entrender->framegroupblend, ed->priv.server->framegroupblend, sizeof(ed->priv.server->framegroupblend));
 443         CL_UpdateRenderEntity(entrender);
 444
 445         // override animation data with full control
 446         memcpy(entrender->frameblend, ed->priv.server->frameblend, sizeof(ed->priv.server->frameblend));
 447         if (ed->priv.server->skeleton.relativetransforms)
 448                 entrender->skeleton = &ed->priv.server->skeleton;
 449         else
 450                 entrender->skeleton = NULL;
 451
 452         return true;
 453 }
 454
 455 // 0 = keydown, key, character (EXT_CSQC)
 456 // 1 = keyup, key, character (EXT_CSQC)
 457 // 2 = mousemove relative, x, y (EXT_CSQC)
 458 // 3 = mousemove absolute, x, y (DP_CSQC)
 459 qbool CL_VM_InputEvent (int eventtype, float x, float y)
 460 {
 461         prvm_prog_t *prog = CLVM_prog;
 462         qbool r;
 463
 464         if(!prog->loaded)
 465                 return false;
 466
 467         if (!PRVM_clientfunction(CSQC_InputEvent))
 468                 r = false;
 469         else
 470         {
 471                 PRVM_clientglobalfloat(time) = cl.time;
 472                 PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 473                 PRVM_G_FLOAT(OFS_PARM0) = eventtype;
 474                 PRVM_G_FLOAT(OFS_PARM1) = x; // key or x
 475                 PRVM_G_FLOAT(OFS_PARM2) = y; // ascii or y
 476                 prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_InputEvent), "QC function CSQC_InputEvent is missing");
 477                 r = CSQC_RETURNVAL != 0;
 478         }
 479         return r;
 480 }
 481
 482 extern r_refdef_view_t csqc_original_r_refdef_view;
 483 extern r_refdef_view_t csqc_main_r_refdef_view;
 484 qbool CL_VM_UpdateView (double frametime)
 485 {
 486         prvm_prog_t *prog = CLVM_prog;
 487         vec3_t emptyvector;
 488         emptyvector[0] = 0;
 489         emptyvector[1] = 0;
 490         emptyvector[2] = 0;
 491 //      vec3_t oldangles;
 492
 493         if(!prog->loaded)
 494                 return false;
 495
 496         R_TimeReport("pre-UpdateView");
 497
 498         csqc_original_r_refdef_view = r_refdef.view;
 499         csqc_main_r_refdef_view = r_refdef.view;
 500         //VectorCopy(cl.viewangles, oldangles);
 501         PRVM_clientglobalfloat(time) = cl.time;
 502         PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 503         CSQC_SetGlobals(frametime);
 504         // clear renderable entity and light lists to prevent crashes if the
 505         // CSQC_UpdateView function does not call R_ClearScene as it should
 506         r_refdef.scene.numentities = 0;
 507         r_refdef.scene.numlights = 0;
 508         // polygonbegin without draw2d arg has to guess
 509         prog->polygonbegin_guess2d = false;
 510         // free memory for resources that are no longer referenced
 511         PRVM_GarbageCollection(prog);
 512         // pass in width and height and menu/focus state as parameters (EXT_CSQC_1)
 513         PRVM_G_FLOAT(OFS_PARM0) = vid.mode.width;
 514         PRVM_G_FLOAT(OFS_PARM1) = vid.mode.height;
 515         /*
 516          * This should be fine for now but FTEQW uses flags for keydest
 517          * and checks that an array called "eyeoffset" is 0
 518          *
 519          * Just a note in case there's compatibility problems later
 520          */
 521         PRVM_G_FLOAT(OFS_PARM2) = key_dest == key_game;
 522         prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_UpdateView), "QC function CSQC_UpdateView is missing");
 523         //VectorCopy(oldangles, cl.viewangles);
 524         // Dresk : Reset Dmg Globals Here
 525         CL_VM_UpdateDmgGlobals(0, 0, emptyvector);
 526         r_refdef.view = csqc_main_r_refdef_view;
 527         R_RenderView_UpdateViewVectors(); // we have to do this, as we undid the scene render doing this for us
 528
 529         R_TimeReport("UpdateView");
 530         return true;
 531 }
 532
 533 void CL_VM_DrawHud(double frametime)
 534 {
 535         prvm_prog_t *prog = CLVM_prog;
 536
 537         R_TimeReport("pre-DrawHud");
 538
 539         PRVM_clientglobalfloat(time) = cl.time;
 540         PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 541         CSQC_SetGlobals(frametime);
 542
 543         PRVM_GarbageCollection(prog);
 544
 545         // width and height parameters are virtual in CSQC_SIMPLE engines
 546         VectorSet(PRVM_G_VECTOR(OFS_PARM0), vid_conwidth.integer, vid_conheight.integer, 0);
 547         PRVM_G_FLOAT(OFS_PARM1) = sb_showscores;
 548         prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_DrawHud), "QC function CSQC_DrawHud is missing");
 549
 550         if (PRVM_clientfunction(CSQC_DrawScores))
 551         {
 552                 VectorSet(PRVM_G_VECTOR(OFS_PARM0), vid_conwidth.integer, vid_conheight.integer, 0);
 553                 PRVM_G_FLOAT(OFS_PARM1) = sb_showscores;
 554                 if (key_dest != key_menu)
 555                         prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_DrawScores), "QC function CSQC_DrawScores is missing");
 556         }
 557         else if (sb_showscores || (cl.stats[STAT_HEALTH] <= 0 && cl_deathscoreboard.integer))
 558                 if (!cl.islocalgame) // LadyHavoc: changed to draw the deathmatch overlays in any multiplayer mode
 559                         Sbar_DeathmatchOverlay ();
 560
 561         R_TimeReport("DrawHud");
 562 }
 563
 564
 565 qbool CL_VM_ConsoleCommand(const char *text, size_t textlen)
 566 {
 567         prvm_prog_t *prog = CLVM_prog;
 568         return PRVM_ConsoleCommand(prog, text, textlen, &prog->funcoffsets.CSQC_ConsoleCommand, false, cl.csqc_server2csqcentitynumber[cl.playerentity], cl.time, "QC function CSQC_ConsoleCommand is missing");
 569 }
 570
 571 qbool CL_VM_Parse_TempEntity (void)
 572 {
 573         prvm_prog_t *prog = CLVM_prog;
 574         int t;
 575         qbool r = false;
 576
 577         if(!prog->loaded)
 578                 return false;
 579
 580         if(PRVM_clientfunction(CSQC_Parse_TempEntity))
 581         {
 582                 t = cl_message.readcount;
 583                 PRVM_clientglobalfloat(time) = cl.time;
 584                 PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 585                 prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Parse_TempEntity), "QC function CSQC_Parse_TempEntity is missing");
 586                 r = CSQC_RETURNVAL != 0;
 587                 if(!r)
 588                 {
 589                         cl_message.readcount = t;
 590                         cl_message.badread = false;
 591                 }
 592         }
 593         return r;
 594 }
 595
 596 void CL_VM_Parse_StuffCmd(const char *msg, size_t msg_len)
 597 {
 598         prvm_prog_t *prog = CLVM_prog;
 599         int restorevm_tempstringsbuf_cursize;
 600
 601         if(msg[0] == 'c')
 602         if(msg[1] == 's')
 603         if(msg[2] == 'q')
 604         if(msg[3] == 'c')
 605         {
 606                 // if this is setting a csqc variable, deprotect csqc_progcrc
 607                 // temporarily so that it can be set by the cvar command,
 608                 // and then reprotect it afterwards
 609                 int crcflags = csqc_progcrc.flags;
 610                 csqc_progcrc.flags &= ~CF_READONLY;
 611                 csqc_progsize.flags &= ~CF_READONLY;
 612                 Cmd_ExecuteString(cmd_local, msg, msg_len, src_local, true);
 613                 csqc_progcrc.flags = csqc_progsize.flags = crcflags;
 614                 return;
 615         }
 616
 617         if(!prog->loaded)
 618         {
 619                 Cbuf_AddText(cmd_local, msg);
 620                 return;
 621         }
 622
 623         if(PRVM_clientfunction(CSQC_Parse_StuffCmd))
 624         {
 625                 PRVM_clientglobalfloat(time) = cl.time;
 626                 PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 627                 restorevm_tempstringsbuf_cursize = prog->tempstringsbuf.cursize;
 628                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(prog, msg, msg_len);
 629                 prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Parse_StuffCmd), "QC function CSQC_Parse_StuffCmd is missing");
 630                 prog->tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 631         }
 632         else
 633                 Cbuf_AddText(cmd_local, msg);
 634 }
 635
 636 static void CL_VM_Parse_Print(const char *msg, size_t msg_len)
 637 {
 638         prvm_prog_t *prog = CLVM_prog;
 639         int restorevm_tempstringsbuf_cursize;
 640         PRVM_clientglobalfloat(time) = cl.time;
 641         PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 642         restorevm_tempstringsbuf_cursize = prog->tempstringsbuf.cursize;
 643         PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(prog, msg, msg_len);
 644         prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Parse_Print), "QC function CSQC_Parse_Print is missing");
 645         prog->tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 646 }
 647
 648 void CSQC_AddPrintText(const char *msg, size_t msg_len)
 649 {
 650         prvm_prog_t *prog = CLVM_prog;
 651         char *start = cl.csqc_printtextbuf + cl.csqc_printtextbuf_len;
 652         size_t writebytes = min(msg_len + 1, MAX_INPUTLINE - cl.csqc_printtextbuf_len);
 653
 654         if(prog->loaded && PRVM_clientfunction(CSQC_Parse_Print))
 655         {
 656                 if(msg[msg_len - 1] != '\n' && msg[msg_len - 1] != '\r')
 657                 {
 658                         if(cl.csqc_printtextbuf_len + msg_len + 1 >= MAX_INPUTLINE)
 659                         {
 660                                 CL_VM_Parse_Print(cl.csqc_printtextbuf, cl.csqc_printtextbuf_len);
 661                                 cl.csqc_printtextbuf[0] = '\0';
 662                                 cl.csqc_printtextbuf_len = 0;
 663                         }
 664                         else
 665                         {
 666                                 memcpy(start, msg, writebytes);
 667                                 cl.csqc_printtextbuf_len += msg_len;
 668                         }
 669                         return;
 670                 }
 671                 memcpy(start, msg, writebytes);
 672                 cl.csqc_printtextbuf_len += msg_len;
 673                 CL_VM_Parse_Print(cl.csqc_printtextbuf, cl.csqc_printtextbuf_len);
 674                 cl.csqc_printtextbuf[0] = '\0';
 675                 cl.csqc_printtextbuf_len = 0;
 676         }
 677         else
 678                 Con_Print(msg);
 679 }
 680
 681 void CL_VM_Parse_CenterPrint(const char *msg, size_t msg_len)
 682 {
 683         prvm_prog_t *prog = CLVM_prog;
 684         int restorevm_tempstringsbuf_cursize;
 685
 686         if(prog->loaded && PRVM_clientfunction(CSQC_Parse_CenterPrint))
 687         {
 688                 PRVM_clientglobalfloat(time) = cl.time;
 689                 PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 690                 restorevm_tempstringsbuf_cursize = prog->tempstringsbuf.cursize;
 691                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(prog, msg, msg_len);
 692                 prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Parse_CenterPrint), "QC function CSQC_Parse_CenterPrint is missing");
 693                 prog->tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 694         }
 695         else
 696                 SCR_CenterPrint(msg);
 697 }
 698
 699 void CL_VM_UpdateIntermissionState (int intermission)
 700 {
 701         prvm_prog_t *prog = CLVM_prog;
 702
 703         if(prog->loaded)
 704                 PRVM_clientglobalfloat(intermission) = intermission;
 705 }
 706 void CL_VM_UpdateShowingScoresState (int showingscores)
 707 {
 708         prvm_prog_t *prog = CLVM_prog;
 709
 710         if(prog->loaded)
 711                 PRVM_clientglobalfloat(sb_showscores) = showingscores;
 712 }
 713 qbool CL_VM_Event_Sound(int sound_num, float fvolume, int channel, float attenuation, int ent, vec3_t pos, int flags, float speed)
 714 {
 715         prvm_prog_t *prog = CLVM_prog;
 716         qbool r = false;
 717
 718         if(prog->loaded)
 719         {
 720                 if(PRVM_clientfunction(CSQC_Event_Sound))
 721                 {
 722                         PRVM_clientglobalfloat(time) = cl.time;
 723                         PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 724                         PRVM_G_FLOAT(OFS_PARM0) = ent;
 725                         PRVM_G_FLOAT(OFS_PARM1) = CHAN_ENGINE2USER(channel);
 726                         PRVM_G_INT(OFS_PARM2) = PRVM_SetTempString(prog, cl.sound_name[sound_num], strlen(cl.sound_name[sound_num]));
 727                         PRVM_G_FLOAT(OFS_PARM3) = fvolume;
 728                         PRVM_G_FLOAT(OFS_PARM4) = attenuation;
 729                         VectorCopy(pos, PRVM_G_VECTOR(OFS_PARM5) );
 730                         PRVM_G_FLOAT(OFS_PARM6) = speed * 100.0f;
 731                         PRVM_G_FLOAT(OFS_PARM7) = flags; // flags
 732                         prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Event_Sound), "QC function CSQC_Event_Sound is missing");
 733                         r = CSQC_RETURNVAL != 0;
 734                 }
 735         }
 736
 737         return r;
 738 }
 739 static void CL_VM_UpdateCoopDeathmatchGlobals (int gametype)
 740 {
 741         prvm_prog_t *prog = CLVM_prog;
 742         // Avoid global names for clean(er) coding
 743         int localcoop;
 744         int localdeathmatch;
 745
 746         if(prog->loaded)
 747         {
 748                 if(gametype == GAME_COOP)
 749                 {
 750                         localcoop = 1;
 751                         localdeathmatch = 0;
 752                 }
 753                 else if(gametype == GAME_DEATHMATCH)
 754                 {
 755                         localcoop = 0;
 756                         localdeathmatch = 1;
 757                 }
 758                 else
 759                 {
 760                         // How did the ServerInfo send an unknown gametype?
 761                         // Better just assign the globals as 0...
 762                         localcoop = 0;
 763                         localdeathmatch = 0;
 764                 }
 765                 PRVM_clientglobalfloat(coop) = localcoop;
 766                 PRVM_clientglobalfloat(deathmatch) = localdeathmatch;
 767         }
 768 }
 769 #if 0
 770 static float CL_VM_Event (float event)          //[515]: needed ? I'd say "YES", but don't know for what :D
 771 {
 772         prvm_prog_t *prog = CLVM_prog;
 773         float r = 0;
 774
 775         if(!prog->loaded)
 776                 return 0;
 777
 778         if(PRVM_clientfunction(CSQC_Event))
 779         {
 780                 PRVM_clientglobalfloat(time) = cl.time;
 781                 PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 782                 PRVM_G_FLOAT(OFS_PARM0) = event;
 783                 prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Event), "QC function CSQC_Event is missing");
 784                 r = CSQC_RETURNVAL;
 785         }
 786         return r;
 787 }
 788 #endif
 789
 790 void CSQC_ReadEntities (void)
 791 {
 792         prvm_prog_t *prog = CLVM_prog;
 793         unsigned short entnum, oldself, realentnum;
 794
 795         if(!prog->loaded)
 796         {
 797                 Host_Error ("CSQC_ReadEntities: CSQC is not loaded");
 798                 return;
 799         }
 800
 801         PRVM_clientglobalfloat(time) = cl.time;
 802         oldself = PRVM_clientglobaledict(self);
 803         while(1)
 804         {
 805                 entnum = MSG_ReadShort(&cl_message);
 806                 if(!entnum || cl_message.badread)
 807                         break;
 808                 realentnum = entnum & 0x7FFF;
 809                 PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[realentnum];
 810                 if(entnum & 0x8000)
 811                 {
 812                         if(PRVM_clientglobaledict(self))
 813                         {
 814                                 prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Ent_Remove), "QC function CSQC_Ent_Remove is missing");
 815                                 cl.csqc_server2csqcentitynumber[realentnum] = 0;
 816                         }
 817                         else
 818                         {
 819                                 // LadyHavoc: removing an entity that is already gone on
 820                                 // the csqc side is possible for legitimate reasons (such
 821                                 // as a repeat of the remove message), so no warning is
 822                                 // needed
 823                                 //Con_Printf("Bad csqc_server2csqcentitynumber map\n"); //[515]: never happens ?
 824                         }
 825                 }
 826                 else
 827                 {
 828                         if(!PRVM_clientglobaledict(self))
 829                         {
 830                                 if(!PRVM_clientfunction(CSQC_Ent_Spawn))
 831                                 {
 832                                         prvm_edict_t    *ed;
 833                                         ed = PRVM_ED_Alloc(prog);
 834                                         PRVM_clientedictfloat(ed, entnum) = realentnum;
 835                                         PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT_TO_PROG(ed);
 836                                 }
 837                                 else
 838                                 {
 839                                         // entity( float entnum ) CSQC_Ent_Spawn;
 840                                         // the qc function should set entnum, too (this way it also can return world [2/1/2008 Andreas]
 841                                         PRVM_G_FLOAT(OFS_PARM0) = (float) realentnum;
 842                                         // make sure no one gets wrong ideas
 843                                         PRVM_clientglobaledict(self) = 0;
 844                                         prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Ent_Spawn), "QC function CSQC_Ent_Spawn is missing");
 845                                         PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT( PRVM_G_INT( OFS_RETURN ) );
 846                                 }
 847                                 PRVM_G_FLOAT(OFS_PARM0) = 1;
 848                                 prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Ent_Update), "QC function CSQC_Ent_Update is missing");
 849                         }
 850                         else {
 851                                 PRVM_G_FLOAT(OFS_PARM0) = 0;
 852                                 prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Ent_Update), "QC function CSQC_Ent_Update is missing");
 853                         }
 854                 }
 855         }
 856         PRVM_clientglobaledict(self) = oldself;
 857 }
 858
 859 static void CLVM_begin_increase_edicts(prvm_prog_t *prog)
 860 {
 861         // links don't survive the transition, so unlink everything
 862         World_UnlinkAll(&cl.world);
 863 }
 864
 865 static void CLVM_end_increase_edicts(prvm_prog_t *prog)
 866 {
 867         int i;
 868         prvm_edict_t *ent;
 869
 870         // link every entity except world
 871         for (i = 1, ent = prog->edicts;i < prog->num_edicts;i++, ent++)
 872                 if (!ent->free)
 873                         CL_LinkEdict(ent);
 874 }
 875
 876 static void CLVM_init_edict(prvm_prog_t *prog, prvm_edict_t *e)
 877 {
 878         int edictnum = PRVM_NUM_FOR_EDICT(e);
 879         entity_render_t *entrender;
 880         CL_ExpandCSQCRenderEntities(edictnum);
 881         entrender = cl.csqcrenderentities + edictnum;
 882         e->priv.server->move = false; // don't move on first frame
 883         memset(entrender, 0, sizeof(*entrender));
 884         entrender->shadertime = cl.time;
 885 }
 886
 887 static void CLVM_free_edict(prvm_prog_t *prog, prvm_edict_t *ed)
 888 {
 889         entity_render_t *entrender = cl.csqcrenderentities + PRVM_NUM_FOR_EDICT(ed);
 890         R_DecalSystem_Reset(&entrender->decalsystem);
 891         memset(entrender, 0, sizeof(*entrender));
 892         World_UnlinkEdict(ed);
 893         memset(ed->fields.fp, 0, prog->entityfields * sizeof(prvm_vec_t));
 894         VM_RemoveEdictSkeleton(prog, ed);
 895 #ifdef USEODE
 896         World_Physics_RemoveFromEntity(&cl.world, ed);
 897         World_Physics_RemoveJointFromEntity(&cl.world, ed);
 898 #endif
 899 }
 900
 901 static void CLVM_count_edicts(prvm_prog_t *prog)
 902 {
 903         int             i;
 904         prvm_edict_t    *ent;
 905         int             active = 0, models = 0, solid = 0;
 906
 907         for (i=0 ; i<prog->num_edicts ; i++)
 908         {
 909                 ent = PRVM_EDICT_NUM(i);
 910                 if (ent->free)
 911                         continue;
 912                 active++;
 913                 if (PRVM_clientedictfloat(ent, solid))
 914                         solid++;
 915                 if (PRVM_clientedictstring(ent, model))
 916                         models++;
 917         }
 918
 919         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
 920         Con_Printf("active    :%3i\n", active);
 921         Con_Printf("view      :%3i\n", models);
 922         Con_Printf("touch     :%3i\n", solid);
 923 }
 924
 925 static qbool CLVM_load_edict(prvm_prog_t *prog, prvm_edict_t *ent)
 926 {
 927         return true;
 928 }
 929
 930 // returns true if the packet is valid, false if end of file is reached
 931 // used for dumping the CSQC download into demo files
 932 qbool MakeDownloadPacket(const char *filename, unsigned char *data, size_t len, int crc, int cnt, sizebuf_t *buf, int protocol)
 933 {
 934         int packetsize = buf->maxsize - 7; // byte short long
 935         int npackets = ((int)len + packetsize - 1) / (packetsize);
 936         char vabuf[1024];
 937
 938         if(protocol == PROTOCOL_QUAKEWORLD)
 939                 return false; // CSQC can't run in QW anyway
 940
 941         SZ_Clear(buf);
 942         if(cnt == 0)
 943         {
 944                 MSG_WriteByte(buf, svc_stufftext);
 945                 MSG_WriteString(buf, va(vabuf, sizeof(vabuf), "\ncl_downloadbegin %lu %s\n", (unsigned long)len, filename));
 946                 return true;
 947         }
 948         else if(cnt >= 1 && cnt <= npackets)
 949         {
 950                 unsigned long thispacketoffset = (cnt - 1) * packetsize;
 951                 int thispacketsize = (int)len - thispacketoffset;
 952                 if(thispacketsize > packetsize)
 953                         thispacketsize = packetsize;
 954
 955                 MSG_WriteByte(buf, svc_downloaddata);
 956                 MSG_WriteLong(buf, thispacketoffset);
 957                 MSG_WriteShort(buf, thispacketsize);
 958                 SZ_Write(buf, data + thispacketoffset, thispacketsize);
 959
 960                 return true;
 961         }
 962         else if(cnt == npackets + 1)
 963         {
 964                 MSG_WriteByte(buf, svc_stufftext);
 965                 MSG_WriteString(buf, va(vabuf, sizeof(vabuf), "\ncl_downloadfinished %lu %d\n", (unsigned long)len, crc));
 966                 return true;
 967         }
 968         return false;
 969 }
 970
 971 extern cvar_t csqc_usedemoprogs;
 972 void CL_VM_Init (void)
 973 {
 974         prvm_prog_t *prog = CLVM_prog;
 975         const char* csprogsfn = NULL;
 976         unsigned char *csprogsdata = NULL;
 977         fs_offset_t csprogsdatasize = 0;
 978         int csprogsdatacrc, requiredcrc;
 979         int requiredsize;
 980         char vabuf[1024];
 981
 982         // reset csqc_progcrc after reading it, so that changing servers doesn't
 983         // expect csqc on the next server
 984         requiredcrc = csqc_progcrc.integer;
 985         requiredsize = csqc_progsize.integer;
 986         Cvar_SetValueQuick(&csqc_progcrc, -1);
 987         Cvar_SetValueQuick(&csqc_progsize, -1);
 988
 989         // if the server is not requesting a csprogs, then we're done here
 990         if (requiredcrc < 0)
 991                 return;
 992
 993         // see if the requested csprogs.dat file matches the requested crc
 994         if (!cls.demoplayback || csqc_usedemoprogs.integer)
 995         {
 996                 csprogsfn = va(vabuf, sizeof(vabuf), "dlcache/%s.%i.%i", csqc_progname.string, requiredsize, requiredcrc);
 997                 if(cls.caughtcsprogsdata && cls.caughtcsprogsdatasize == requiredsize && CRC_Block(cls.caughtcsprogsdata, (size_t)cls.caughtcsprogsdatasize) == requiredcrc)
 998                 {
 999                         Con_DPrintf("Using buffered \"%s\"\n", csprogsfn);
1000                         csprogsdata = cls.caughtcsprogsdata;
1001                         csprogsdatasize = cls.caughtcsprogsdatasize;
1002                         cls.caughtcsprogsdata = NULL;
1003                         cls.caughtcsprogsdatasize = 0;
1004                 }
1005                 else
1006                 {
1007                         Con_DPrintf("Not using buffered \"%s\" (buffered: %p, %d)\n", csprogsfn, (void *)cls.caughtcsprogsdata, (int) cls.caughtcsprogsdatasize);
1008                         csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
1009                 }
1010         }
1011         if (!csprogsdata)
1012         {
1013                 csprogsfn = csqc_progname.string;
1014                 csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
1015         }
1016         if (csprogsdata)
1017         {
1018                 csprogsdatacrc = CRC_Block(csprogsdata, (size_t)csprogsdatasize);
1019                 if (csprogsdatacrc != requiredcrc || csprogsdatasize != requiredsize)
1020                 {
1021                         if (cls.demoplayback)
1022                         {
1023                                 Con_Printf(CON_WARN "Warning: 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);
1024                                 // Mem_Free(csprogsdata);
1025                                 // return;
1026                                 // We WANT to continue here, and play the demo with different csprogs!
1027                                 // After all, this is just a warning. Sure things may go wrong from here.
1028                         }
1029                         else
1030                         {
1031                                 Mem_Free(csprogsdata);
1032                                 CL_DisconnectEx(false, "Your %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);
1033                                 return;
1034                         }
1035                 }
1036         }
1037         else
1038         {
1039                 if (requiredcrc >= 0)
1040                         CL_DisconnectEx(false, CON_ERROR "CL_VM_Init: %s requires CSQC, but \"%s\" wasn't found\n", cls.demoplayback ? "demo" : "server", csqc_progname.string);
1041                 return;
1042         }
1043
1044         PRVM_Prog_Init(prog, cmd_local);
1045
1046         // allocate the mempools
1047         prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
1048         prog->edictprivate_size = 0; // no private struct used
1049         prog->name = "client";
1050         prog->num_edicts = 1;
1051         prog->max_edicts = 512;
1052         prog->limit_edicts = CL_MAX_EDICTS;
1053         prog->reserved_edicts = 0;
1054         prog->edictprivate_size = sizeof(edict_engineprivate_t);
1055         // TODO: add a shared extension string #define and add real support for csqc extension strings [12/5/2007 Black]
1056         prog->extensionstring = vm_sv_extensions;
1057         prog->builtins = vm_cl_builtins;
1058         prog->numbuiltins = vm_cl_numbuiltins;
1059
1060         // all callbacks must be defined (pointers are not checked before calling)
1061         prog->begin_increase_edicts = CLVM_begin_increase_edicts;
1062         prog->end_increase_edicts   = CLVM_end_increase_edicts;
1063         prog->init_edict            = CLVM_init_edict;
1064         prog->free_edict            = CLVM_free_edict;
1065         prog->count_edicts          = CLVM_count_edicts;
1066         prog->load_edict            = CLVM_load_edict;
1067         prog->init_cmd              = CLVM_init_cmd;
1068         prog->reset_cmd             = CLVM_reset_cmd;
1069         prog->error_cmd             = Host_Error;
1070         prog->ExecuteProgram        = CLVM_ExecuteProgram;
1071
1072         PRVM_Prog_Load(prog, csprogsfn, csprogsdata, csprogsdatasize, CL_CheckRequiredFuncs, CL_REQFIELDS, cl_reqfields, CL_REQGLOBALS, cl_reqglobals);
1073
1074         if (!prog->loaded)
1075         {
1076                 Mem_Free(csprogsdata);
1077                 Host_Error("CSQC %s failed to load\n", csprogsfn);
1078         }
1079
1080         if(cls.demorecording)
1081         {
1082                 if(cls.demo_lastcsprogssize != csprogsdatasize || cls.demo_lastcsprogscrc != csprogsdatacrc)
1083                 {
1084                         int i;
1085                         static char buf[NET_MAXMESSAGE];
1086                         sizebuf_t sb;
1087                         unsigned char *demobuf; fs_offset_t demofilesize;
1088
1089                         sb.data = (unsigned char *) buf;
1090                         sb.maxsize = sizeof(buf);
1091                         i = 0;
1092
1093                         CL_CutDemo(&demobuf, &demofilesize);
1094                         while(MakeDownloadPacket(csqc_progname.string, csprogsdata, (size_t)csprogsdatasize, csprogsdatacrc, i++, &sb, cls.protocol))
1095                                 CL_WriteDemoMessage(&sb);
1096                         CL_PasteDemo(&demobuf, &demofilesize);
1097
1098                         cls.demo_lastcsprogssize = csprogsdatasize;
1099                         cls.demo_lastcsprogscrc = csprogsdatacrc;
1100                 }
1101         }
1102         Mem_Free(csprogsdata);
1103
1104         // check if OP_STATE animation is possible in this dat file
1105         if (prog->fieldoffsets.nextthink >= 0 && prog->fieldoffsets.frame >= 0 && prog->fieldoffsets.think >= 0 && prog->globaloffsets.self >= 0)
1106                 prog->flag |= PRVM_OP_STATE;
1107
1108         // set time
1109         PRVM_clientglobalfloat(time) = cl.time;
1110         PRVM_clientglobaledict(self) = 0;
1111
1112         PRVM_clientglobalstring(mapname) = PRVM_SetEngineString(prog, cl.worldbasename);
1113         PRVM_clientglobalfloat(player_localnum) = cl.realplayerentity - 1;
1114         PRVM_clientglobalfloat(player_localentnum) = cl.viewentity;
1115
1116         // set map description (use world entity 0)
1117         PRVM_clientedictstring(prog->edicts, message) = PRVM_SetEngineString(prog, cl.worldmessage);
1118         VectorCopy(cl.world.mins, PRVM_clientedictvector(prog->edicts, mins));
1119         VectorCopy(cl.world.maxs, PRVM_clientedictvector(prog->edicts, maxs));
1120         VectorCopy(cl.world.mins, PRVM_clientedictvector(prog->edicts, absmin));
1121         VectorCopy(cl.world.maxs, PRVM_clientedictvector(prog->edicts, absmax));
1122         PRVM_clientedictfloat(prog->edicts, solid) = SOLID_BSP;
1123         PRVM_clientedictfloat(prog->edicts, modelindex) = 1;
1124         PRVM_clientedictstring(prog->edicts, model) = PRVM_SetEngineString(prog, cl.worldmodel->name);
1125
1126         // call the prog init if it exists
1127         if (PRVM_clientfunction(CSQC_Init))
1128         {
1129                 PRVM_G_FLOAT(OFS_PARM0) = 1.0f; // CSQC_SIMPLE engines always pass 0, FTE always passes 1
1130                 PRVM_G_INT(OFS_PARM1) = PRVM_SetEngineString(prog, gamename);
1131                 PRVM_G_FLOAT(OFS_PARM2) = 1.0f; // TODO DP versions...
1132                 prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Init), "QC function CSQC_Init is missing");
1133         }
1134
1135         // Once CSQC_Init was called, we consider csqc code fully initialized.
1136         prog->inittime = host.realtime;
1137
1138         cl.csqc_vidvars.drawcrosshair = false;
1139         cl.csqc_vidvars.drawenginesbar = false;
1140
1141         // Update Coop and Deathmatch Globals (at this point the client knows them from ServerInfo)
1142         CL_VM_UpdateCoopDeathmatchGlobals(cl.gametype);
1143 }
1144
1145 void CL_VM_ShutDown (void)
1146 {
1147         prvm_prog_t *prog = CLVM_prog;
1148         Cmd_ClearCSQCCommands(cmd_local);
1149
1150         //Cvar_SetValueQuick(&csqc_progcrc, -1);
1151         //Cvar_SetValueQuick(&csqc_progsize, -1);
1152         if (prog->loaded)
1153         {
1154                 PRVM_clientglobalfloat(time) = cl.time;
1155                 PRVM_clientglobaledict(self) = 0;
1156                 if (PRVM_clientfunction(CSQC_Shutdown))
1157                         prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Shutdown), "QC function CSQC_Shutdown is missing");
1158         }
1159         PRVM_Prog_Reset(prog);
1160         Con_DPrint("CSQC ^1unloaded\n");
1161 }
1162
1163 qbool CL_VM_GetEntitySoundOrigin(int entnum, vec3_t out)
1164 {
1165         prvm_prog_t *prog = CLVM_prog;
1166         prvm_edict_t *ed;
1167         model_t *mod;
1168         matrix4x4_t matrix;
1169         qbool r = 0;
1170
1171         ed = PRVM_EDICT_NUM(entnum - MAX_EDICTS);
1172
1173         if(!ed->free)
1174         {
1175                 mod = CL_GetModelFromEdict(ed);
1176                 VectorCopy(PRVM_clientedictvector(ed, origin), out);
1177                 if(CL_GetTagMatrix(prog, &matrix, ed, 0, NULL) == 0)
1178                         Matrix4x4_OriginFromMatrix(&matrix, out);
1179                 if (mod && mod->soundfromcenter)
1180                         VectorMAMAM(1.0f, out, 0.5f, mod->normalmins, 0.5f, mod->normalmaxs, out);
1181                 r = 1;
1182         }
1183
1184         return r;
1185 }
1186
1187 qbool CL_VM_TransformView(int entnum, matrix4x4_t *viewmatrix, mplane_t *clipplane, vec3_t visorigin)
1188 {
1189         prvm_prog_t *prog = CLVM_prog;
1190         qbool ret = false;
1191         prvm_edict_t *ed;
1192         vec3_t forward, left, up, origin, ang;
1193         matrix4x4_t mat, matq;
1194
1195         ed = PRVM_EDICT_NUM(entnum);
1196         // camera:
1197         //   camera_transform
1198         if(PRVM_clientedictfunction(ed, camera_transform))
1199         {
1200                 ret = true;
1201                 if(viewmatrix && clipplane && visorigin)
1202                 {
1203                         Matrix4x4_ToVectors(viewmatrix, forward, left, up, origin);
1204                         AnglesFromVectors(ang, forward, up, false);
1205                         PRVM_clientglobalfloat(time) = cl.time;
1206                         PRVM_clientglobaledict(self) = entnum;
1207                         VectorCopy(origin, PRVM_G_VECTOR(OFS_PARM0));
1208                         VectorCopy(ang, PRVM_G_VECTOR(OFS_PARM1));
1209                         VectorCopy(forward, PRVM_clientglobalvector(v_forward));
1210                         VectorScale(left, -1, PRVM_clientglobalvector(v_right));
1211                         VectorCopy(up, PRVM_clientglobalvector(v_up));
1212                         VectorCopy(origin, PRVM_clientglobalvector(trace_endpos));
1213                         prog->ExecuteProgram(prog, PRVM_clientedictfunction(ed, camera_transform), "QC function e.camera_transform is missing");
1214                         VectorCopy(PRVM_G_VECTOR(OFS_RETURN), origin);
1215                         VectorCopy(PRVM_clientglobalvector(v_forward), forward);
1216                         VectorScale(PRVM_clientglobalvector(v_right), -1, left);
1217                         VectorCopy(PRVM_clientglobalvector(v_up), up);
1218                         VectorCopy(PRVM_clientglobalvector(trace_endpos), visorigin);
1219                         Matrix4x4_Invert_Full(&mat, viewmatrix);
1220                         Matrix4x4_FromVectors(viewmatrix, forward, left, up, origin);
1221                         Matrix4x4_Concat(&matq, viewmatrix, &mat);
1222                         Matrix4x4_TransformPositivePlane(&matq, clipplane->normal[0], clipplane->normal[1], clipplane->normal[2], clipplane->dist, clipplane->normal_and_dist);
1223                 }
1224         }
1225
1226         return ret;
1227 }
1228
1229 int CL_VM_GetViewEntity(void)
1230 {
1231         if(cl.csqc_server2csqcentitynumber[cl.viewentity])
1232                 return cl.csqc_server2csqcentitynumber[cl.viewentity] + MAX_EDICTS;
1233         return cl.viewentity;
1234 }