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 #define CSQC_BEGIN
  36 #define CSQC_END
  37
  38 void CL_VM_PreventInformationLeaks(void)
  39 {
  40         prvm_prog_t *prog = CLVM_prog;
  41         if(!cl.csqc_loaded)
  42                 return;
  43 CSQC_BEGIN
  44         VM_ClearTraceGlobals(prog);
  45         PRVM_clientglobalfloat(trace_networkentity) = 0;
  46 CSQC_END
  47 }
  48
  49 //[515]: these are required funcs
  50 static const char *cl_required_func[] =
  51 {
  52         "CSQC_Init",
  53         "CSQC_InputEvent",
  54         "CSQC_UpdateView",
  55         "CSQC_ConsoleCommand",
  56 };
  57
  58 static int cl_numrequiredfunc = sizeof(cl_required_func) / sizeof(char*);
  59
  60 #define CL_REQFIELDS (sizeof(cl_reqfields) / sizeof(prvm_required_field_t))
  61
  62 prvm_required_field_t cl_reqfields[] =
  63 {
  64 #define PRVM_DECLARE_serverglobalfloat(x)
  65 #define PRVM_DECLARE_serverglobalvector(x)
  66 #define PRVM_DECLARE_serverglobalstring(x)
  67 #define PRVM_DECLARE_serverglobaledict(x)
  68 #define PRVM_DECLARE_serverglobalfunction(x)
  69 #define PRVM_DECLARE_clientglobalfloat(x)
  70 #define PRVM_DECLARE_clientglobalvector(x)
  71 #define PRVM_DECLARE_clientglobalstring(x)
  72 #define PRVM_DECLARE_clientglobaledict(x)
  73 #define PRVM_DECLARE_clientglobalfunction(x)
  74 #define PRVM_DECLARE_menuglobalfloat(x)
  75 #define PRVM_DECLARE_menuglobalvector(x)
  76 #define PRVM_DECLARE_menuglobalstring(x)
  77 #define PRVM_DECLARE_menuglobaledict(x)
  78 #define PRVM_DECLARE_menuglobalfunction(x)
  79 #define PRVM_DECLARE_serverfieldfloat(x)
  80 #define PRVM_DECLARE_serverfieldvector(x)
  81 #define PRVM_DECLARE_serverfieldstring(x)
  82 #define PRVM_DECLARE_serverfieldedict(x)
  83 #define PRVM_DECLARE_serverfieldfunction(x)
  84 #define PRVM_DECLARE_clientfieldfloat(x) {ev_float, #x },
  85 #define PRVM_DECLARE_clientfieldvector(x) {ev_vector, #x },
  86 #define PRVM_DECLARE_clientfieldstring(x) {ev_string, #x },
  87 #define PRVM_DECLARE_clientfieldedict(x) {ev_entity, #x },
  88 #define PRVM_DECLARE_clientfieldfunction(x) {ev_function, #x },
  89 #define PRVM_DECLARE_menufieldfloat(x)
  90 #define PRVM_DECLARE_menufieldvector(x)
  91 #define PRVM_DECLARE_menufieldstring(x)
  92 #define PRVM_DECLARE_menufieldedict(x)
  93 #define PRVM_DECLARE_menufieldfunction(x)
  94 #define PRVM_DECLARE_serverfunction(x)
  95 #define PRVM_DECLARE_clientfunction(x)
  96 #define PRVM_DECLARE_menufunction(x)
  97 #define PRVM_DECLARE_field(x)
  98 #define PRVM_DECLARE_global(x)
  99 #define PRVM_DECLARE_function(x)
 100 #include "prvm_offsets.h"
 101 #undef PRVM_DECLARE_serverglobalfloat
 102 #undef PRVM_DECLARE_serverglobalvector
 103 #undef PRVM_DECLARE_serverglobalstring
 104 #undef PRVM_DECLARE_serverglobaledict
 105 #undef PRVM_DECLARE_serverglobalfunction
 106 #undef PRVM_DECLARE_clientglobalfloat
 107 #undef PRVM_DECLARE_clientglobalvector
 108 #undef PRVM_DECLARE_clientglobalstring
 109 #undef PRVM_DECLARE_clientglobaledict
 110 #undef PRVM_DECLARE_clientglobalfunction
 111 #undef PRVM_DECLARE_menuglobalfloat
 112 #undef PRVM_DECLARE_menuglobalvector
 113 #undef PRVM_DECLARE_menuglobalstring
 114 #undef PRVM_DECLARE_menuglobaledict
 115 #undef PRVM_DECLARE_menuglobalfunction
 116 #undef PRVM_DECLARE_serverfieldfloat
 117 #undef PRVM_DECLARE_serverfieldvector
 118 #undef PRVM_DECLARE_serverfieldstring
 119 #undef PRVM_DECLARE_serverfieldedict
 120 #undef PRVM_DECLARE_serverfieldfunction
 121 #undef PRVM_DECLARE_clientfieldfloat
 122 #undef PRVM_DECLARE_clientfieldvector
 123 #undef PRVM_DECLARE_clientfieldstring
 124 #undef PRVM_DECLARE_clientfieldedict
 125 #undef PRVM_DECLARE_clientfieldfunction
 126 #undef PRVM_DECLARE_menufieldfloat
 127 #undef PRVM_DECLARE_menufieldvector
 128 #undef PRVM_DECLARE_menufieldstring
 129 #undef PRVM_DECLARE_menufieldedict
 130 #undef PRVM_DECLARE_menufieldfunction
 131 #undef PRVM_DECLARE_serverfunction
 132 #undef PRVM_DECLARE_clientfunction
 133 #undef PRVM_DECLARE_menufunction
 134 #undef PRVM_DECLARE_field
 135 #undef PRVM_DECLARE_global
 136 #undef PRVM_DECLARE_function
 137 };
 138
 139 #define CL_REQGLOBALS (sizeof(cl_reqglobals) / sizeof(prvm_required_field_t))
 140
 141 prvm_required_field_t cl_reqglobals[] =
 142 {
 143 #define PRVM_DECLARE_serverglobalfloat(x)
 144 #define PRVM_DECLARE_serverglobalvector(x)
 145 #define PRVM_DECLARE_serverglobalstring(x)
 146 #define PRVM_DECLARE_serverglobaledict(x)
 147 #define PRVM_DECLARE_serverglobalfunction(x)
 148 #define PRVM_DECLARE_clientglobalfloat(x) {ev_float, #x},
 149 #define PRVM_DECLARE_clientglobalvector(x) {ev_vector, #x},
 150 #define PRVM_DECLARE_clientglobalstring(x) {ev_string, #x},
 151 #define PRVM_DECLARE_clientglobaledict(x) {ev_entity, #x},
 152 #define PRVM_DECLARE_clientglobalfunction(x) {ev_function, #x},
 153 #define PRVM_DECLARE_menuglobalfloat(x)
 154 #define PRVM_DECLARE_menuglobalvector(x)
 155 #define PRVM_DECLARE_menuglobalstring(x)
 156 #define PRVM_DECLARE_menuglobaledict(x)
 157 #define PRVM_DECLARE_menuglobalfunction(x)
 158 #define PRVM_DECLARE_serverfieldfloat(x)
 159 #define PRVM_DECLARE_serverfieldvector(x)
 160 #define PRVM_DECLARE_serverfieldstring(x)
 161 #define PRVM_DECLARE_serverfieldedict(x)
 162 #define PRVM_DECLARE_serverfieldfunction(x)
 163 #define PRVM_DECLARE_clientfieldfloat(x)
 164 #define PRVM_DECLARE_clientfieldvector(x)
 165 #define PRVM_DECLARE_clientfieldstring(x)
 166 #define PRVM_DECLARE_clientfieldedict(x)
 167 #define PRVM_DECLARE_clientfieldfunction(x)
 168 #define PRVM_DECLARE_menufieldfloat(x)
 169 #define PRVM_DECLARE_menufieldvector(x)
 170 #define PRVM_DECLARE_menufieldstring(x)
 171 #define PRVM_DECLARE_menufieldedict(x)
 172 #define PRVM_DECLARE_menufieldfunction(x)
 173 #define PRVM_DECLARE_serverfunction(x)
 174 #define PRVM_DECLARE_clientfunction(x)
 175 #define PRVM_DECLARE_menufunction(x)
 176 #define PRVM_DECLARE_field(x)
 177 #define PRVM_DECLARE_global(x)
 178 #define PRVM_DECLARE_function(x)
 179 #include "prvm_offsets.h"
 180 #undef PRVM_DECLARE_serverglobalfloat
 181 #undef PRVM_DECLARE_serverglobalvector
 182 #undef PRVM_DECLARE_serverglobalstring
 183 #undef PRVM_DECLARE_serverglobaledict
 184 #undef PRVM_DECLARE_serverglobalfunction
 185 #undef PRVM_DECLARE_clientglobalfloat
 186 #undef PRVM_DECLARE_clientglobalvector
 187 #undef PRVM_DECLARE_clientglobalstring
 188 #undef PRVM_DECLARE_clientglobaledict
 189 #undef PRVM_DECLARE_clientglobalfunction
 190 #undef PRVM_DECLARE_menuglobalfloat
 191 #undef PRVM_DECLARE_menuglobalvector
 192 #undef PRVM_DECLARE_menuglobalstring
 193 #undef PRVM_DECLARE_menuglobaledict
 194 #undef PRVM_DECLARE_menuglobalfunction
 195 #undef PRVM_DECLARE_serverfieldfloat
 196 #undef PRVM_DECLARE_serverfieldvector
 197 #undef PRVM_DECLARE_serverfieldstring
 198 #undef PRVM_DECLARE_serverfieldedict
 199 #undef PRVM_DECLARE_serverfieldfunction
 200 #undef PRVM_DECLARE_clientfieldfloat
 201 #undef PRVM_DECLARE_clientfieldvector
 202 #undef PRVM_DECLARE_clientfieldstring
 203 #undef PRVM_DECLARE_clientfieldedict
 204 #undef PRVM_DECLARE_clientfieldfunction
 205 #undef PRVM_DECLARE_menufieldfloat
 206 #undef PRVM_DECLARE_menufieldvector
 207 #undef PRVM_DECLARE_menufieldstring
 208 #undef PRVM_DECLARE_menufieldedict
 209 #undef PRVM_DECLARE_menufieldfunction
 210 #undef PRVM_DECLARE_serverfunction
 211 #undef PRVM_DECLARE_clientfunction
 212 #undef PRVM_DECLARE_menufunction
 213 #undef PRVM_DECLARE_field
 214 #undef PRVM_DECLARE_global
 215 #undef PRVM_DECLARE_function
 216 };
 217
 218 void CL_VM_UpdateDmgGlobals (int dmg_take, int dmg_save, vec3_t dmg_origin)
 219 {
 220         prvm_prog_t *prog = CLVM_prog;
 221         if(cl.csqc_loaded)
 222         {
 223                 CSQC_BEGIN
 224                 PRVM_clientglobalfloat(dmg_take) = dmg_take;
 225                 PRVM_clientglobalfloat(dmg_save) = dmg_save;
 226                 VectorCopy(dmg_origin, PRVM_clientglobalvector(dmg_origin));
 227                 CSQC_END
 228         }
 229 }
 230
 231 void CSQC_UpdateNetworkTimes(double newtime, double oldtime)
 232 {
 233         prvm_prog_t *prog = CLVM_prog;
 234         if(!cl.csqc_loaded)
 235                 return;
 236         CSQC_BEGIN
 237         PRVM_clientglobalfloat(servertime) = newtime;
 238         PRVM_clientglobalfloat(serverprevtime) = oldtime;
 239         PRVM_clientglobalfloat(serverdeltatime) = newtime - oldtime;
 240         CSQC_END
 241 }
 242
 243 //[515]: set globals before calling R_UpdateView, WEIRD CRAP
 244 static void CSQC_SetGlobals (double frametime)
 245 {
 246         vec3_t pmove_org;
 247         prvm_prog_t *prog = CLVM_prog;
 248         CSQC_BEGIN
 249                 PRVM_clientglobalfloat(time) = cl.time;
 250                 PRVM_clientglobalfloat(cltime) = host.realtime; // Spike named it that way.
 251                 PRVM_clientglobalfloat(frametime) = frametime;
 252                 PRVM_clientglobalfloat(servercommandframe) = cls.servermovesequence;
 253                 PRVM_clientglobalfloat(clientcommandframe) = cl.movecmd[0].sequence;
 254                 VectorCopy(cl.viewangles, PRVM_clientglobalvector(input_angles));
 255                 // // FIXME: this actually belongs into getinputstate().. [12/17/2007 Black]
 256                 PRVM_clientglobalfloat(input_buttons) = cl.movecmd[0].buttons;
 257                 VectorSet(PRVM_clientglobalvector(input_movevalues), cl.movecmd[0].forwardmove, cl.movecmd[0].sidemove, cl.movecmd[0].upmove);
 258                 VectorCopy(cl.csqc_vieworiginfromengine, cl.csqc_vieworigin);
 259                 VectorCopy(cl.csqc_viewanglesfromengine, cl.csqc_viewangles);
 260
 261                 // LadyHavoc: Spike says not to do this, but without pmove_org the
 262                 // CSQC is useless as it can't alter the view origin without
 263                 // completely replacing it
 264                 Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, pmove_org);
 265                 VectorCopy(pmove_org, PRVM_clientglobalvector(pmove_org));
 266                 VectorCopy(cl.movement_velocity, PRVM_clientglobalvector(pmove_vel));
 267                 PRVM_clientglobalfloat(pmove_onground) = cl.onground;
 268                 PRVM_clientglobalfloat(pmove_inwater) = cl.inwater;
 269
 270                 VectorCopy(cl.viewangles, PRVM_clientglobalvector(view_angles));
 271                 VectorCopy(cl.punchangle, PRVM_clientglobalvector(view_punchangle));
 272                 VectorCopy(cl.punchvector, PRVM_clientglobalvector(view_punchvector));
 273                 PRVM_clientglobalfloat(maxclients) = cl.maxclients;
 274
 275                 PRVM_clientglobalfloat(player_localentnum) = cl.viewentity;
 276
 277                 CSQC_R_RecalcView();
 278         CSQC_END
 279 }
 280
 281 void CSQC_Predraw (prvm_edict_t *ed)
 282 {
 283         prvm_prog_t *prog = CLVM_prog;
 284         int b;
 285         if(!PRVM_clientedictfunction(ed, predraw))
 286                 return;
 287         b = PRVM_clientglobaledict(self);
 288         PRVM_clientglobaledict(self) = PRVM_EDICT_TO_PROG(ed);
 289         prog->ExecuteProgram(prog, PRVM_clientedictfunction(ed, predraw), "CSQC_Predraw: NULL function\n");
 290         PRVM_clientglobaledict(self) = b;
 291 }
 292
 293 void CSQC_Think (prvm_edict_t *ed)
 294 {
 295         prvm_prog_t *prog = CLVM_prog;
 296         int b;
 297         if(PRVM_clientedictfunction(ed, think))
 298         if(PRVM_clientedictfloat(ed, nextthink) && PRVM_clientedictfloat(ed, nextthink) <= PRVM_clientglobalfloat(time))
 299         {
 300                 PRVM_clientedictfloat(ed, nextthink) = 0;
 301                 b = PRVM_clientglobaledict(self);
 302                 PRVM_clientglobaledict(self) = PRVM_EDICT_TO_PROG(ed);
 303                 prog->ExecuteProgram(prog, PRVM_clientedictfunction(ed, think), "CSQC_Think: NULL function\n");
 304                 PRVM_clientglobaledict(self) = b;
 305         }
 306 }
 307
 308 extern cvar_t cl_noplayershadow;
 309 qbool CSQC_AddRenderEdict(prvm_edict_t *ed, int edictnum)
 310 {
 311         prvm_prog_t *prog = CLVM_prog;
 312         int renderflags;
 313         int c;
 314         float scale;
 315         entity_render_t *entrender;
 316         model_t *model;
 317         prvm_vec3_t modellight_origin;
 318
 319         model = CL_GetModelFromEdict(ed);
 320         if (!model)
 321                 return false;
 322
 323         if (edictnum)
 324         {
 325                 if (r_refdef.scene.numentities >= r_refdef.scene.maxentities)
 326                         return false;
 327                 entrender = cl.csqcrenderentities + edictnum;
 328                 r_refdef.scene.entities[r_refdef.scene.numentities++] = entrender;
 329                 entrender->entitynumber = edictnum + MAX_EDICTS;
 330                 //entrender->shadertime = 0; // shadertime was set by spawn()
 331                 entrender->flags = 0;
 332                 entrender->effects = 0;
 333                 entrender->alpha = 1;
 334                 entrender->scale = 1;
 335                 VectorSet(entrender->colormod, 1, 1, 1);
 336                 VectorSet(entrender->glowmod, 1, 1, 1);
 337                 entrender->allowdecals = true;
 338         }
 339         else
 340         {
 341                 entrender = CL_NewTempEntity(0);
 342                 if (!entrender)
 343                         return false;
 344         }
 345
 346         entrender->userwavefunc_param[0] = PRVM_clientedictfloat(ed, userwavefunc_param0);
 347         entrender->userwavefunc_param[1] = PRVM_clientedictfloat(ed, userwavefunc_param1);
 348         entrender->userwavefunc_param[2] = PRVM_clientedictfloat(ed, userwavefunc_param2);
 349         entrender->userwavefunc_param[3] = PRVM_clientedictfloat(ed, userwavefunc_param3);
 350
 351         entrender->model = model;
 352         entrender->skinnum = (int)PRVM_clientedictfloat(ed, skin);
 353         entrender->effects |= entrender->model->effects;
 354         renderflags = (int)PRVM_clientedictfloat(ed, renderflags);
 355         entrender->alpha = PRVM_clientedictfloat(ed, alpha);
 356         entrender->scale = scale = PRVM_clientedictfloat(ed, scale);
 357         VectorCopy(PRVM_clientedictvector(ed, colormod), entrender->colormod);
 358         VectorCopy(PRVM_clientedictvector(ed, glowmod), entrender->glowmod);
 359         if(PRVM_clientedictfloat(ed, effects))  entrender->effects |= (int)PRVM_clientedictfloat(ed, effects);
 360         if (!entrender->alpha)
 361                 entrender->alpha = 1.0f;
 362         if (!entrender->scale)
 363                 entrender->scale = scale = 1.0f;
 364         if (!VectorLength2(entrender->colormod))
 365                 VectorSet(entrender->colormod, 1, 1, 1);
 366         if (!VectorLength2(entrender->glowmod))
 367                 VectorSet(entrender->glowmod, 1, 1, 1);
 368
 369         // LadyHavoc: use the CL_GetTagMatrix function on self to ensure consistent behavior (duplicate code would be bad)
 370         // this also sets the custommodellight_origin for us
 371         CL_GetTagMatrix(prog, &entrender->matrix, ed, 0, modellight_origin);
 372         VectorCopy(modellight_origin, entrender->custommodellight_origin);
 373
 374         // set up the animation data
 375         VM_GenerateFrameGroupBlend(prog, ed->priv.server->framegroupblend, ed);
 376         VM_FrameBlendFromFrameGroupBlend(ed->priv.server->frameblend, ed->priv.server->framegroupblend, model, cl.time);
 377         VM_UpdateEdictSkeleton(prog, ed, model, ed->priv.server->frameblend);
 378         if (PRVM_clientedictfloat(ed, shadertime)) // hack for csprogs.dat files that do not set shadertime, leaves the value at entity spawn time
 379                 entrender->shadertime = PRVM_clientedictfloat(ed, shadertime);
 380
 381         // transparent offset
 382         if (renderflags & RF_USETRANSPARENTOFFSET)
 383                 entrender->transparent_offset = PRVM_clientglobalfloat(transparent_offset);
 384
 385         // model light
 386         if (renderflags & RF_MODELLIGHT)
 387         {
 388                 if (PRVM_clientedictvector(ed, modellight_ambient)) VectorCopy(PRVM_clientedictvector(ed, modellight_ambient), entrender->custommodellight_ambient); else VectorClear(entrender->custommodellight_ambient);
 389                 if (PRVM_clientedictvector(ed, modellight_diffuse)) VectorCopy(PRVM_clientedictvector(ed, modellight_diffuse), entrender->custommodellight_diffuse); else VectorClear(entrender->custommodellight_diffuse);
 390                 if (PRVM_clientedictvector(ed, modellight_dir))     VectorCopy(PRVM_clientedictvector(ed, modellight_dir), entrender->custommodellight_lightdir);    else VectorClear(entrender->custommodellight_lightdir);
 391                 entrender->flags |= RENDER_CUSTOMIZEDMODELLIGHT;
 392         }
 393
 394         if(renderflags)
 395         {
 396                 if(renderflags & RF_VIEWMODEL) entrender->flags |= RENDER_VIEWMODEL | RENDER_NODEPTHTEST;
 397                 if(renderflags & RF_EXTERNALMODEL) entrender->flags |= RENDER_EXTERIORMODEL;
 398                 if(renderflags & RF_WORLDOBJECT) entrender->flags |= RENDER_WORLDOBJECT;
 399                 if(renderflags & RF_DEPTHHACK) entrender->flags |= RENDER_NODEPTHTEST;
 400                 if(renderflags & RF_ADDITIVE) entrender->flags |= RENDER_ADDITIVE;
 401                 if(renderflags & RF_DYNAMICMODELLIGHT) entrender->flags |= RENDER_DYNAMICMODELLIGHT;
 402         }
 403
 404         c = (int)PRVM_clientedictfloat(ed, colormap);
 405         if (c <= 0)
 406                 CL_SetEntityColormapColors(entrender, -1);
 407         else if (c <= cl.maxclients && cl.scores != NULL)
 408                 CL_SetEntityColormapColors(entrender, cl.scores[c-1].colors);
 409         else
 410                 CL_SetEntityColormapColors(entrender, c);
 411
 412         entrender->flags &= ~(RENDER_SHADOW | RENDER_LIGHT | RENDER_NOSELFSHADOW);
 413         // either fullbright or lit
 414         if(!r_fullbright.integer)
 415         {
 416                 if (!(entrender->effects & EF_FULLBRIGHT) && !(renderflags & RF_FULLBRIGHT))
 417                         entrender->flags |= RENDER_LIGHT;
 418         }
 419         // hide player shadow during intermission or nehahra movie
 420         if (!(entrender->effects & (EF_NOSHADOW | EF_ADDITIVE | EF_NODEPTHTEST))
 421          &&  (entrender->alpha >= 1)
 422          && !(renderflags & RF_NOSHADOW)
 423          && !(entrender->flags & RENDER_VIEWMODEL)
 424          && (!(entrender->flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 425                 entrender->flags |= RENDER_SHADOW;
 426         if (entrender->flags & RENDER_VIEWMODEL)
 427                 entrender->flags |= RENDER_NOSELFSHADOW;
 428         if (entrender->effects & EF_NOSELFSHADOW)
 429                 entrender->flags |= RENDER_NOSELFSHADOW;
 430         if (entrender->effects & EF_NODEPTHTEST)
 431                 entrender->flags |= RENDER_NODEPTHTEST;
 432         if (entrender->effects & EF_ADDITIVE)
 433                 entrender->flags |= RENDER_ADDITIVE;
 434         if (entrender->effects & EF_DOUBLESIDED)
 435                 entrender->flags |= RENDER_DOUBLESIDED;
 436         if (entrender->effects & EF_DYNAMICMODELLIGHT)
 437                 entrender->flags |= RENDER_DYNAMICMODELLIGHT;
 438
 439         // make the other useful stuff
 440         memcpy(entrender->framegroupblend, ed->priv.server->framegroupblend, sizeof(ed->priv.server->framegroupblend));
 441         CL_UpdateRenderEntity(entrender);
 442
 443         // override animation data with full control
 444         memcpy(entrender->frameblend, ed->priv.server->frameblend, sizeof(ed->priv.server->frameblend));
 445         if (ed->priv.server->skeleton.relativetransforms)
 446                 entrender->skeleton = &ed->priv.server->skeleton;
 447         else
 448                 entrender->skeleton = NULL;
 449
 450         return true;
 451 }
 452
 453 // 0 = keydown, key, character (EXT_CSQC)
 454 // 1 = keyup, key, character (EXT_CSQC)
 455 // 2 = mousemove relative, x, y (EXT_CSQC)
 456 // 3 = mousemove absolute, x, y (DP_CSQC)
 457 qbool CL_VM_InputEvent (int eventtype, float x, float y)
 458 {
 459         prvm_prog_t *prog = CLVM_prog;
 460         qbool r;
 461
 462         if(!cl.csqc_loaded)
 463                 return false;
 464
 465 CSQC_BEGIN
 466         if (!PRVM_clientfunction(CSQC_InputEvent))
 467                 r = false;
 468         else
 469         {
 470                 PRVM_clientglobalfloat(time) = cl.time;
 471                 PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 472                 PRVM_G_FLOAT(OFS_PARM0) = eventtype;
 473                 PRVM_G_FLOAT(OFS_PARM1) = x; // key or x
 474                 PRVM_G_FLOAT(OFS_PARM2) = y; // ascii or y
 475                 prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_InputEvent), "QC function CSQC_InputEvent is missing");
 476                 r = CSQC_RETURNVAL != 0;
 477         }
 478 CSQC_END
 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         if(!cl.csqc_loaded)
 493                 return false;
 494         R_TimeReport("pre-UpdateView");
 495         CSQC_BEGIN
 496                 csqc_original_r_refdef_view = r_refdef.view;
 497                 csqc_main_r_refdef_view = r_refdef.view;
 498                 //VectorCopy(cl.viewangles, oldangles);
 499                 PRVM_clientglobalfloat(time) = cl.time;
 500                 PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 501                 CSQC_SetGlobals(frametime);
 502                 // clear renderable entity and light lists to prevent crashes if the
 503                 // CSQC_UpdateView function does not call R_ClearScene as it should
 504                 r_refdef.scene.numentities = 0;
 505                 r_refdef.scene.numlights = 0;
 506                 // polygonbegin without draw2d arg has to guess
 507                 prog->polygonbegin_guess2d = false;
 508                 // free memory for resources that are no longer referenced
 509                 PRVM_GarbageCollection(prog);
 510                 // pass in width and height and menu/focus state as parameters (EXT_CSQC_1)
 511                 PRVM_G_FLOAT(OFS_PARM0) = vid.width;
 512                 PRVM_G_FLOAT(OFS_PARM1) = vid.height;
 513                 /*
 514                  * This should be fine for now but FTEQW uses flags for keydest
 515                  * and checks that an array called "eyeoffset" is 0
 516                  *
 517                  * Just a note in case there's compatibility problems later
 518                  */
 519                 PRVM_G_FLOAT(OFS_PARM2) = key_dest == key_game;
 520                 prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_UpdateView), "QC function CSQC_UpdateView is missing");
 521                 //VectorCopy(oldangles, cl.viewangles);
 522                 // Dresk : Reset Dmg Globals Here
 523                 CL_VM_UpdateDmgGlobals(0, 0, emptyvector);
 524                 r_refdef.view = csqc_main_r_refdef_view;
 525                 R_RenderView_UpdateViewVectors(); // we have to do this, as we undid the scene render doing this for us
 526         CSQC_END
 527
 528         R_TimeReport("UpdateView");
 529         return true;
 530 }
 531
 532 qbool CL_VM_ConsoleCommand (const char *text)
 533 {
 534         prvm_prog_t *prog = CLVM_prog;
 535         return PRVM_ConsoleCommand(prog, text, &prog->funcoffsets.CSQC_ConsoleCommand, false, cl.csqc_server2csqcentitynumber[cl.playerentity], cl.time, cl.csqc_loaded, "QC function CSQC_ConsoleCommand is missing");
 536 }
 537
 538 qbool CL_VM_Parse_TempEntity (void)
 539 {
 540         prvm_prog_t *prog = CLVM_prog;
 541         int                     t;
 542         qbool   r = false;
 543         if(!cl.csqc_loaded)
 544                 return false;
 545         CSQC_BEGIN
 546         if(PRVM_clientfunction(CSQC_Parse_TempEntity))
 547         {
 548                 t = cl_message.readcount;
 549                 PRVM_clientglobalfloat(time) = cl.time;
 550                 PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 551                 prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Parse_TempEntity), "QC function CSQC_Parse_TempEntity is missing");
 552                 r = CSQC_RETURNVAL != 0;
 553                 if(!r)
 554                 {
 555                         cl_message.readcount = t;
 556                         cl_message.badread = false;
 557                 }
 558         }
 559         CSQC_END
 560         return r;
 561 }
 562
 563 void CL_VM_Parse_StuffCmd (const char *msg)
 564 {
 565         prvm_prog_t *prog = CLVM_prog;
 566         int restorevm_tempstringsbuf_cursize;
 567         if(msg[0] == 'c')
 568         if(msg[1] == 's')
 569         if(msg[2] == 'q')
 570         if(msg[3] == 'c')
 571         {
 572                 // if this is setting a csqc variable, deprotect csqc_progcrc
 573                 // temporarily so that it can be set by the cvar command,
 574                 // and then reprotect it afterwards
 575                 int crcflags = csqc_progcrc.flags;
 576                 csqc_progcrc.flags &= ~CF_READONLY;
 577                 csqc_progsize.flags &= ~CF_READONLY;
 578                 Cmd_ExecuteString(cmd_local, msg, src_local, true);
 579                 csqc_progcrc.flags = csqc_progsize.flags = crcflags;
 580                 return;
 581         }
 582
 583         if(cls.demoplayback)
 584         if(!strncmp(msg, "curl --clear_autodownload\ncurl --pak --forthismap --as ", 55))
 585         {
 586                 // special handling for map download commands
 587                 // run these commands IMMEDIATELY, instead of waiting for a client frame
 588                 // that way, there is no black screen when playing back demos
 589                 // I know this is a really ugly hack, but I can't think of any better way
 590                 // FIXME find the actual CAUSE of this, and make demo playback WAIT
 591                 // until all maps are loaded, then remove this hack
 592
 593                 char buf[MAX_INPUTLINE];
 594                 const char *p, *q;
 595                 size_t l;
 596
 597                 p = msg;
 598
 599                 for(;;)
 600                 {
 601                         q = strchr(p, '\n');
 602                         if(q)
 603                                 l = q - p;
 604                         else
 605                                 l = strlen(p);
 606                         if(l > sizeof(buf) - 1)
 607                                 l = sizeof(buf) - 1;
 608                         strlcpy(buf, p, l + 1); // strlcpy needs a + 1 as it includes the newline!
 609
 610                         Cmd_ExecuteString(cmd_local, buf, src_local, true);
 611
 612                         p += l;
 613                         if(*p == '\n')
 614                                 ++p; // skip the newline and continue
 615                         else
 616                                 break; // end of string or overflow
 617                 }
 618                 Cmd_ExecuteString(cmd_local, "curl --clear_autodownload", src_local, true); // don't inhibit CSQC loading
 619                 return;
 620         }
 621
 622         if(!cl.csqc_loaded)
 623         {
 624                 Cbuf_AddText(cmd_local, msg);
 625                 return;
 626         }
 627         CSQC_BEGIN
 628         if(PRVM_clientfunction(CSQC_Parse_StuffCmd))
 629         {
 630                 PRVM_clientglobalfloat(time) = cl.time;
 631                 PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 632                 restorevm_tempstringsbuf_cursize = prog->tempstringsbuf.cursize;
 633                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(prog, msg);
 634                 prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Parse_StuffCmd), "QC function CSQC_Parse_StuffCmd is missing");
 635                 prog->tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 636         }
 637         else
 638                 Cbuf_AddText(cmd_local, msg);
 639         CSQC_END
 640 }
 641
 642 static void CL_VM_Parse_Print (const char *msg)
 643 {
 644         prvm_prog_t *prog = CLVM_prog;
 645         int restorevm_tempstringsbuf_cursize;
 646         PRVM_clientglobalfloat(time) = cl.time;
 647         PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 648         restorevm_tempstringsbuf_cursize = prog->tempstringsbuf.cursize;
 649         PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(prog, msg);
 650         prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Parse_Print), "QC function CSQC_Parse_Print is missing");
 651         prog->tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 652 }
 653
 654 void CSQC_AddPrintText (const char *msg)
 655 {
 656         prvm_prog_t *prog = CLVM_prog;
 657         size_t i;
 658         CSQC_BEGIN
 659         if(cl.csqc_loaded && PRVM_clientfunction(CSQC_Parse_Print))
 660         {
 661                 // FIXME: is this bugged?
 662                 i = strlen(msg)-1;
 663                 if(msg[i] != '\n' && msg[i] != '\r')
 664                 {
 665                         if(strlen(cl.csqc_printtextbuf)+i >= MAX_INPUTLINE)
 666                         {
 667                                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 668                                 cl.csqc_printtextbuf[0] = 0;
 669                         }
 670                         else
 671                                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 672                         return;
 673                 }
 674                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 675                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 676                 cl.csqc_printtextbuf[0] = 0;
 677         }
 678         else
 679                 Con_Print(msg);
 680         CSQC_END
 681 }
 682
 683 void CL_VM_Parse_CenterPrint (const char *msg)
 684 {
 685         prvm_prog_t *prog = CLVM_prog;
 686         int restorevm_tempstringsbuf_cursize;
 687         CSQC_BEGIN
 688         if(cl.csqc_loaded && PRVM_clientfunction(CSQC_Parse_CenterPrint))
 689         {
 690                 PRVM_clientglobalfloat(time) = cl.time;
 691                 PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 692                 restorevm_tempstringsbuf_cursize = prog->tempstringsbuf.cursize;
 693                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(prog, msg);
 694                 prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Parse_CenterPrint), "QC function CSQC_Parse_CenterPrint is missing");
 695                 prog->tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 696         }
 697         else
 698                 SCR_CenterPrint(msg);
 699         CSQC_END
 700 }
 701
 702 void CL_VM_UpdateIntermissionState (int intermission)
 703 {
 704         prvm_prog_t *prog = CLVM_prog;
 705         if(cl.csqc_loaded)
 706         {
 707                 CSQC_BEGIN
 708                 PRVM_clientglobalfloat(intermission) = intermission;
 709                 CSQC_END
 710         }
 711 }
 712 void CL_VM_UpdateShowingScoresState (int showingscores)
 713 {
 714         prvm_prog_t *prog = CLVM_prog;
 715         if(cl.csqc_loaded)
 716         {
 717                 CSQC_BEGIN
 718                 PRVM_clientglobalfloat(sb_showscores) = showingscores;
 719                 CSQC_END
 720         }
 721 }
 722 qbool CL_VM_Event_Sound(int sound_num, float fvolume, int channel, float attenuation, int ent, vec3_t pos, int flags, float speed)
 723 {
 724         prvm_prog_t *prog = CLVM_prog;
 725         qbool r = false;
 726         if(cl.csqc_loaded)
 727         {
 728                 CSQC_BEGIN
 729                 if(PRVM_clientfunction(CSQC_Event_Sound))
 730                 {
 731                         PRVM_clientglobalfloat(time) = cl.time;
 732                         PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 733                         PRVM_G_FLOAT(OFS_PARM0) = ent;
 734                         PRVM_G_FLOAT(OFS_PARM1) = CHAN_ENGINE2USER(channel);
 735                         PRVM_G_INT(OFS_PARM2) = PRVM_SetTempString(prog, cl.sound_name[sound_num] );
 736                         PRVM_G_FLOAT(OFS_PARM3) = fvolume;
 737                         PRVM_G_FLOAT(OFS_PARM4) = attenuation;
 738                         VectorCopy(pos, PRVM_G_VECTOR(OFS_PARM5) );
 739                         PRVM_G_FLOAT(OFS_PARM6) = speed * 100.0f;
 740                         PRVM_G_FLOAT(OFS_PARM7) = flags; // flags
 741                         prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Event_Sound), "QC function CSQC_Event_Sound is missing");
 742                         r = CSQC_RETURNVAL != 0;
 743                 }
 744                 CSQC_END
 745         }
 746
 747         return r;
 748 }
 749 static void CL_VM_UpdateCoopDeathmatchGlobals (int gametype)
 750 {
 751         prvm_prog_t *prog = CLVM_prog;
 752         // Avoid global names for clean(er) coding
 753         int localcoop;
 754         int localdeathmatch;
 755
 756         if(cl.csqc_loaded)
 757         {
 758                 if(gametype == GAME_COOP)
 759                 {
 760                         localcoop = 1;
 761                         localdeathmatch = 0;
 762                 }
 763                 else
 764                 if(gametype == GAME_DEATHMATCH)
 765                 {
 766                         localcoop = 0;
 767                         localdeathmatch = 1;
 768                 }
 769                 else
 770                 {
 771                         // How did the ServerInfo send an unknown gametype?
 772                         // Better just assign the globals as 0...
 773                         localcoop = 0;
 774                         localdeathmatch = 0;
 775                 }
 776                 CSQC_BEGIN
 777                 PRVM_clientglobalfloat(coop) = localcoop;
 778                 PRVM_clientglobalfloat(deathmatch) = localdeathmatch;
 779                 CSQC_END
 780         }
 781 }
 782 #if 0
 783 static float CL_VM_Event (float event)          //[515]: needed ? I'd say "YES", but don't know for what :D
 784 {
 785         prvm_prog_t *prog = CLVM_prog;
 786         float r = 0;
 787         if(!cl.csqc_loaded)
 788                 return 0;
 789         CSQC_BEGIN
 790         if(PRVM_clientfunction(CSQC_Event))
 791         {
 792                 PRVM_clientglobalfloat(time) = cl.time;
 793                 PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
 794                 PRVM_G_FLOAT(OFS_PARM0) = event;
 795                 prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Event), "QC function CSQC_Event is missing");
 796                 r = CSQC_RETURNVAL;
 797         }
 798         CSQC_END
 799         return r;
 800 }
 801 #endif
 802
 803 void CSQC_ReadEntities (void)
 804 {
 805         prvm_prog_t *prog = CLVM_prog;
 806         unsigned short entnum, oldself, realentnum;
 807         if(!cl.csqc_loaded)
 808         {
 809                 Host_Error ("CSQC_ReadEntities: CSQC is not loaded");
 810                 return;
 811         }
 812
 813         CSQC_BEGIN
 814                 PRVM_clientglobalfloat(time) = cl.time;
 815                 oldself = PRVM_clientglobaledict(self);
 816                 while(1)
 817                 {
 818                         entnum = MSG_ReadShort(&cl_message);
 819                         if(!entnum || cl_message.badread)
 820                                 break;
 821                         realentnum = entnum & 0x7FFF;
 822                         PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[realentnum];
 823                         if(entnum & 0x8000)
 824                         {
 825                                 if(PRVM_clientglobaledict(self))
 826                                 {
 827                                         prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Ent_Remove), "QC function CSQC_Ent_Remove is missing");
 828                                         cl.csqc_server2csqcentitynumber[realentnum] = 0;
 829                                 }
 830                                 else
 831                                 {
 832                                         // LadyHavoc: removing an entity that is already gone on
 833                                         // the csqc side is possible for legitimate reasons (such
 834                                         // as a repeat of the remove message), so no warning is
 835                                         // needed
 836                                         //Con_Printf("Bad csqc_server2csqcentitynumber map\n"); //[515]: never happens ?
 837                                 }
 838                         }
 839                         else
 840                         {
 841                                 if(!PRVM_clientglobaledict(self))
 842                                 {
 843                                         if(!PRVM_clientfunction(CSQC_Ent_Spawn))
 844                                         {
 845                                                 prvm_edict_t    *ed;
 846                                                 ed = PRVM_ED_Alloc(prog);
 847                                                 PRVM_clientedictfloat(ed, entnum) = realentnum;
 848                                                 PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT_TO_PROG(ed);
 849                                         }
 850                                         else
 851                                         {
 852                                                 // entity( float entnum ) CSQC_Ent_Spawn;
 853                                                 // the qc function should set entnum, too (this way it also can return world [2/1/2008 Andreas]
 854                                                 PRVM_G_FLOAT(OFS_PARM0) = (float) realentnum;
 855                                                 // make sure no one gets wrong ideas
 856                                                 PRVM_clientglobaledict(self) = 0;
 857                                                 prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Ent_Spawn), "QC function CSQC_Ent_Spawn is missing");
 858                                                 PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT( PRVM_G_INT( OFS_RETURN ) );
 859                                         }
 860                                         PRVM_G_FLOAT(OFS_PARM0) = 1;
 861                                         prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Ent_Update), "QC function CSQC_Ent_Update is missing");
 862                                 }
 863                                 else {
 864                                         PRVM_G_FLOAT(OFS_PARM0) = 0;
 865                                         prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Ent_Update), "QC function CSQC_Ent_Update is missing");
 866                                 }
 867                         }
 868                 }
 869                 PRVM_clientglobaledict(self) = oldself;
 870         CSQC_END
 871 }
 872
 873 static void CLVM_begin_increase_edicts(prvm_prog_t *prog)
 874 {
 875         // links don't survive the transition, so unlink everything
 876         World_UnlinkAll(&cl.world);
 877 }
 878
 879 static void CLVM_end_increase_edicts(prvm_prog_t *prog)
 880 {
 881         int i;
 882         prvm_edict_t *ent;
 883
 884         // link every entity except world
 885         for (i = 1, ent = prog->edicts;i < prog->num_edicts;i++, ent++)
 886                 if (!ent->free && !VectorCompare(PRVM_clientedictvector(ent, absmin), PRVM_clientedictvector(ent, absmax)))
 887                         CL_LinkEdict(ent);
 888 }
 889
 890 static void CLVM_init_edict(prvm_prog_t *prog, prvm_edict_t *e)
 891 {
 892         int edictnum = PRVM_NUM_FOR_EDICT(e);
 893         entity_render_t *entrender;
 894         CL_ExpandCSQCRenderEntities(edictnum);
 895         entrender = cl.csqcrenderentities + edictnum;
 896         e->priv.server->move = false; // don't move on first frame
 897         memset(entrender, 0, sizeof(*entrender));
 898         entrender->shadertime = cl.time;
 899 }
 900
 901 static void CLVM_free_edict(prvm_prog_t *prog, prvm_edict_t *ed)
 902 {
 903         entity_render_t *entrender = cl.csqcrenderentities + PRVM_NUM_FOR_EDICT(ed);
 904         R_DecalSystem_Reset(&entrender->decalsystem);
 905         memset(entrender, 0, sizeof(*entrender));
 906         World_UnlinkEdict(ed);
 907         memset(ed->fields.fp, 0, prog->entityfields * sizeof(prvm_vec_t));
 908         VM_RemoveEdictSkeleton(prog, ed);
 909 #ifdef USEODE
 910         World_Physics_RemoveFromEntity(&cl.world, ed);
 911         World_Physics_RemoveJointFromEntity(&cl.world, ed);
 912 #endif
 913 }
 914
 915 static void CLVM_count_edicts(prvm_prog_t *prog)
 916 {
 917         int             i;
 918         prvm_edict_t    *ent;
 919         int             active = 0, models = 0, solid = 0;
 920
 921         for (i=0 ; i<prog->num_edicts ; i++)
 922         {
 923                 ent = PRVM_EDICT_NUM(i);
 924                 if (ent->free)
 925                         continue;
 926                 active++;
 927                 if (PRVM_clientedictfloat(ent, solid))
 928                         solid++;
 929                 if (PRVM_clientedictstring(ent, model))
 930                         models++;
 931         }
 932
 933         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
 934         Con_Printf("active    :%3i\n", active);
 935         Con_Printf("view      :%3i\n", models);
 936         Con_Printf("touch     :%3i\n", solid);
 937 }
 938
 939 static qbool CLVM_load_edict(prvm_prog_t *prog, prvm_edict_t *ent)
 940 {
 941         return true;
 942 }
 943
 944 // returns true if the packet is valid, false if end of file is reached
 945 // used for dumping the CSQC download into demo files
 946 qbool MakeDownloadPacket(const char *filename, unsigned char *data, size_t len, int crc, int cnt, sizebuf_t *buf, int protocol)
 947 {
 948         int packetsize = buf->maxsize - 7; // byte short long
 949         int npackets = ((int)len + packetsize - 1) / (packetsize);
 950         char vabuf[1024];
 951
 952         if(protocol == PROTOCOL_QUAKEWORLD)
 953                 return false; // CSQC can't run in QW anyway
 954
 955         SZ_Clear(buf);
 956         if(cnt == 0)
 957         {
 958                 MSG_WriteByte(buf, svc_stufftext);
 959                 MSG_WriteString(buf, va(vabuf, sizeof(vabuf), "\ncl_downloadbegin %lu %s\n", (unsigned long)len, filename));
 960                 return true;
 961         }
 962         else if(cnt >= 1 && cnt <= npackets)
 963         {
 964                 unsigned long thispacketoffset = (cnt - 1) * packetsize;
 965                 int thispacketsize = (int)len - thispacketoffset;
 966                 if(thispacketsize > packetsize)
 967                         thispacketsize = packetsize;
 968
 969                 MSG_WriteByte(buf, svc_downloaddata);
 970                 MSG_WriteLong(buf, thispacketoffset);
 971                 MSG_WriteShort(buf, thispacketsize);
 972                 SZ_Write(buf, data + thispacketoffset, thispacketsize);
 973
 974                 return true;
 975         }
 976         else if(cnt == npackets + 1)
 977         {
 978                 MSG_WriteByte(buf, svc_stufftext);
 979                 MSG_WriteString(buf, va(vabuf, sizeof(vabuf), "\ncl_downloadfinished %lu %d\n", (unsigned long)len, crc));
 980                 return true;
 981         }
 982         return false;
 983 }
 984
 985 extern cvar_t csqc_usedemoprogs;
 986 void CL_VM_Init (void)
 987 {
 988         prvm_prog_t *prog = CLVM_prog;
 989         const char* csprogsfn = NULL;
 990         unsigned char *csprogsdata = NULL;
 991         fs_offset_t csprogsdatasize = 0;
 992         int csprogsdatacrc, requiredcrc;
 993         int requiredsize;
 994         char vabuf[1024];
 995
 996         // reset csqc_progcrc after reading it, so that changing servers doesn't
 997         // expect csqc on the next server
 998         requiredcrc = csqc_progcrc.integer;
 999         requiredsize = csqc_progsize.integer;
1000         Cvar_SetValueQuick(&csqc_progcrc, -1);
1001         Cvar_SetValueQuick(&csqc_progsize, -1);
1002
1003         // if the server is not requesting a csprogs, then we're done here
1004         if (requiredcrc < 0)
1005                 return;
1006
1007         // see if the requested csprogs.dat file matches the requested crc
1008         if (!cls.demoplayback || csqc_usedemoprogs.integer)
1009         {
1010                 csprogsfn = va(vabuf, sizeof(vabuf), "dlcache/%s.%i.%i", csqc_progname.string, requiredsize, requiredcrc);
1011                 if(cls.caughtcsprogsdata && cls.caughtcsprogsdatasize == requiredsize && CRC_Block(cls.caughtcsprogsdata, (size_t)cls.caughtcsprogsdatasize) == requiredcrc)
1012                 {
1013                         Con_DPrintf("Using buffered \"%s\"\n", csprogsfn);
1014                         csprogsdata = cls.caughtcsprogsdata;
1015                         csprogsdatasize = cls.caughtcsprogsdatasize;
1016                         cls.caughtcsprogsdata = NULL;
1017                         cls.caughtcsprogsdatasize = 0;
1018                 }
1019                 else
1020                 {
1021                         Con_DPrintf("Not using buffered \"%s\" (buffered: %p, %d)\n", csprogsfn, (void *)cls.caughtcsprogsdata, (int) cls.caughtcsprogsdatasize);
1022                         csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
1023                 }
1024         }
1025         if (!csprogsdata)
1026         {
1027                 csprogsfn = csqc_progname.string;
1028                 csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
1029         }
1030         if (csprogsdata)
1031         {
1032                 csprogsdatacrc = CRC_Block(csprogsdata, (size_t)csprogsdatasize);
1033                 if (csprogsdatacrc != requiredcrc || csprogsdatasize != requiredsize)
1034                 {
1035                         if (cls.demoplayback)
1036                         {
1037                                 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);
1038                                 // Mem_Free(csprogsdata);
1039                                 // return;
1040                                 // We WANT to continue here, and play the demo with different csprogs!
1041                                 // After all, this is just a warning. Sure things may go wrong from here.
1042                         }
1043                         else
1044                         {
1045                                 Mem_Free(csprogsdata);
1046                                 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);
1047                                 return;
1048                         }
1049                 }
1050         }
1051         else
1052         {
1053                 if (requiredcrc >= 0)
1054                         CL_DisconnectEx(false, CON_ERROR "CL_VM_Init: %s requires CSQC, but \"%s\" wasn't found\n", cls.demoplayback ? "demo" : "server", csqc_progname.string);
1055                 return;
1056         }
1057
1058         PRVM_Prog_Init(prog, cmd_local);
1059
1060         // allocate the mempools
1061         prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
1062         prog->edictprivate_size = 0; // no private struct used
1063         prog->name = "client";
1064         prog->num_edicts = 1;
1065         prog->max_edicts = 512;
1066         prog->limit_edicts = CL_MAX_EDICTS;
1067         prog->reserved_edicts = 0;
1068         prog->edictprivate_size = sizeof(edict_engineprivate_t);
1069         // TODO: add a shared extension string #define and add real support for csqc extension strings [12/5/2007 Black]
1070         prog->extensionstring = vm_sv_extensions;
1071         prog->builtins = vm_cl_builtins;
1072         prog->numbuiltins = vm_cl_numbuiltins;
1073
1074         // all callbacks must be defined (pointers are not checked before calling)
1075         prog->begin_increase_edicts = CLVM_begin_increase_edicts;
1076         prog->end_increase_edicts   = CLVM_end_increase_edicts;
1077         prog->init_edict            = CLVM_init_edict;
1078         prog->free_edict            = CLVM_free_edict;
1079         prog->count_edicts          = CLVM_count_edicts;
1080         prog->load_edict            = CLVM_load_edict;
1081         prog->init_cmd              = CLVM_init_cmd;
1082         prog->reset_cmd             = CLVM_reset_cmd;
1083         prog->error_cmd             = Host_Error;
1084         prog->ExecuteProgram        = CLVM_ExecuteProgram;
1085
1086         PRVM_Prog_Load(prog, csprogsfn, csprogsdata, csprogsdatasize, cl_numrequiredfunc, cl_required_func, CL_REQFIELDS, cl_reqfields, CL_REQGLOBALS, cl_reqglobals);
1087
1088         if (!prog->loaded)
1089         {
1090                 Mem_Free(csprogsdata);
1091                 Host_Error("CSQC %s failed to load\n", csprogsfn);
1092         }
1093
1094         if(cls.demorecording)
1095         {
1096                 if(cls.demo_lastcsprogssize != csprogsdatasize || cls.demo_lastcsprogscrc != csprogsdatacrc)
1097                 {
1098                         int i;
1099                         static char buf[NET_MAXMESSAGE];
1100                         sizebuf_t sb;
1101                         unsigned char *demobuf; fs_offset_t demofilesize;
1102
1103                         sb.data = (unsigned char *) buf;
1104                         sb.maxsize = sizeof(buf);
1105                         i = 0;
1106
1107                         CL_CutDemo(&demobuf, &demofilesize);
1108                         while(MakeDownloadPacket(csqc_progname.string, csprogsdata, (size_t)csprogsdatasize, csprogsdatacrc, i++, &sb, cls.protocol))
1109                                 CL_WriteDemoMessage(&sb);
1110                         CL_PasteDemo(&demobuf, &demofilesize);
1111
1112                         cls.demo_lastcsprogssize = csprogsdatasize;
1113                         cls.demo_lastcsprogscrc = csprogsdatacrc;
1114                 }
1115         }
1116         Mem_Free(csprogsdata);
1117
1118         // check if OP_STATE animation is possible in this dat file
1119         if (prog->fieldoffsets.nextthink >= 0 && prog->fieldoffsets.frame >= 0 && prog->fieldoffsets.think >= 0 && prog->globaloffsets.self >= 0)
1120                 prog->flag |= PRVM_OP_STATE;
1121
1122         // set time
1123         PRVM_clientglobalfloat(time) = cl.time;
1124         PRVM_clientglobaledict(self) = 0;
1125
1126         PRVM_clientglobalstring(mapname) = PRVM_SetEngineString(prog, cl.worldname);
1127         PRVM_clientglobalfloat(player_localnum) = cl.realplayerentity - 1;
1128         PRVM_clientglobalfloat(player_localentnum) = cl.viewentity;
1129
1130         // set map description (use world entity 0)
1131         PRVM_clientedictstring(prog->edicts, message) = PRVM_SetEngineString(prog, cl.worldmessage);
1132         VectorCopy(cl.world.mins, PRVM_clientedictvector(prog->edicts, mins));
1133         VectorCopy(cl.world.maxs, PRVM_clientedictvector(prog->edicts, maxs));
1134         VectorCopy(cl.world.mins, PRVM_clientedictvector(prog->edicts, absmin));
1135         VectorCopy(cl.world.maxs, PRVM_clientedictvector(prog->edicts, absmax));
1136
1137         // call the prog init
1138         prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Init), "QC function CSQC_Init is missing");
1139
1140         // Once CSQC_Init was called, we consider csqc code fully initialized.
1141         prog->inittime = host.realtime;
1142
1143         cl.csqc_loaded = true;
1144
1145         cl.csqc_vidvars.drawcrosshair = false;
1146         cl.csqc_vidvars.drawenginesbar = false;
1147
1148         // Update Coop and Deathmatch Globals (at this point the client knows them from ServerInfo)
1149         CL_VM_UpdateCoopDeathmatchGlobals(cl.gametype);
1150 }
1151
1152 void CL_VM_ShutDown (void)
1153 {
1154         prvm_prog_t *prog = CLVM_prog;
1155         Cmd_ClearCSQCCommands(cmd_local);
1156         //Cvar_SetValueQuick(&csqc_progcrc, -1);
1157         //Cvar_SetValueQuick(&csqc_progsize, -1);
1158         if(!cl.csqc_loaded)
1159                 return;
1160 CSQC_BEGIN
1161         if (prog->loaded)
1162         {
1163                 PRVM_clientglobalfloat(time) = cl.time;
1164                 PRVM_clientglobaledict(self) = 0;
1165                 if (PRVM_clientfunction(CSQC_Shutdown))
1166                         prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Shutdown), "QC function CSQC_Shutdown is missing");
1167         }
1168         PRVM_Prog_Reset(prog);
1169 CSQC_END
1170         Con_DPrint("CSQC ^1unloaded\n");
1171         cl.csqc_loaded = false;
1172 }
1173
1174 qbool CL_VM_GetEntitySoundOrigin(int entnum, vec3_t out)
1175 {
1176         prvm_prog_t *prog = CLVM_prog;
1177         prvm_edict_t *ed;
1178         model_t *mod;
1179         matrix4x4_t matrix;
1180         qbool r = 0;
1181
1182         CSQC_BEGIN;
1183
1184         ed = PRVM_EDICT_NUM(entnum - MAX_EDICTS);
1185
1186         if(!ed->free)
1187         {
1188                 mod = CL_GetModelFromEdict(ed);
1189                 VectorCopy(PRVM_clientedictvector(ed, origin), out);
1190                 if(CL_GetTagMatrix(prog, &matrix, ed, 0, NULL) == 0)
1191                         Matrix4x4_OriginFromMatrix(&matrix, out);
1192                 if (mod && mod->soundfromcenter)
1193                         VectorMAMAM(1.0f, out, 0.5f, mod->normalmins, 0.5f, mod->normalmaxs, out);
1194                 r = 1;
1195         }
1196
1197         CSQC_END;
1198
1199         return r;
1200 }
1201
1202 qbool CL_VM_TransformView(int entnum, matrix4x4_t *viewmatrix, mplane_t *clipplane, vec3_t visorigin)
1203 {
1204         prvm_prog_t *prog = CLVM_prog;
1205         qbool ret = false;
1206         prvm_edict_t *ed;
1207         vec3_t forward, left, up, origin, ang;
1208         matrix4x4_t mat, matq;
1209
1210         CSQC_BEGIN
1211                 ed = PRVM_EDICT_NUM(entnum);
1212                 // camera:
1213                 //   camera_transform
1214                 if(PRVM_clientedictfunction(ed, camera_transform))
1215                 {
1216                         ret = true;
1217                         if(viewmatrix && clipplane && visorigin)
1218                         {
1219                                 Matrix4x4_ToVectors(viewmatrix, forward, left, up, origin);
1220                                 AnglesFromVectors(ang, forward, up, false);
1221                                 PRVM_clientglobalfloat(time) = cl.time;
1222                                 PRVM_clientglobaledict(self) = entnum;
1223                                 VectorCopy(origin, PRVM_G_VECTOR(OFS_PARM0));
1224                                 VectorCopy(ang, PRVM_G_VECTOR(OFS_PARM1));
1225                                 VectorCopy(forward, PRVM_clientglobalvector(v_forward));
1226                                 VectorScale(left, -1, PRVM_clientglobalvector(v_right));
1227                                 VectorCopy(up, PRVM_clientglobalvector(v_up));
1228                                 VectorCopy(origin, PRVM_clientglobalvector(trace_endpos));
1229                                 prog->ExecuteProgram(prog, PRVM_clientedictfunction(ed, camera_transform), "QC function e.camera_transform is missing");
1230                                 VectorCopy(PRVM_G_VECTOR(OFS_RETURN), origin);
1231                                 VectorCopy(PRVM_clientglobalvector(v_forward), forward);
1232                                 VectorScale(PRVM_clientglobalvector(v_right), -1, left);
1233                                 VectorCopy(PRVM_clientglobalvector(v_up), up);
1234                                 VectorCopy(PRVM_clientglobalvector(trace_endpos), visorigin);
1235                                 Matrix4x4_Invert_Full(&mat, viewmatrix);
1236                                 Matrix4x4_FromVectors(viewmatrix, forward, left, up, origin);
1237                                 Matrix4x4_Concat(&matq, viewmatrix, &mat);
1238                                 Matrix4x4_TransformPositivePlane(&matq, clipplane->normal[0], clipplane->normal[1], clipplane->normal[2], clipplane->dist, clipplane->normal_and_dist);
1239                         }
1240                 }
1241         CSQC_END
1242
1243         return ret;
1244 }
1245
1246 int CL_VM_GetViewEntity(void)
1247 {
1248         if(cl.csqc_server2csqcentitynumber[cl.viewentity])
1249                 return cl.csqc_server2csqcentitynumber[cl.viewentity] + MAX_EDICTS;
1250         return cl.viewentity;
1251 }