cl_main.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   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 // cl_main.c  -- client main loop
  21
  22 #include "quakedef.h"
  23 #include "cl_collision.h"
  24 #include "cl_video.h"
  25 #include "image.h"
  26
  27 // we need to declare some mouse variables here, because the menu system
  28 // references them even when on a unix system.
  29
  30 cvar_t cl_shownet = {0, "cl_shownet","0"};
  31 cvar_t cl_nolerp = {0, "cl_nolerp", "0"};
  32
  33 cvar_t cl_itembobheight = {0, "cl_itembobheight", "8"};
  34 cvar_t cl_itembobspeed = {0, "cl_itembobspeed", "0.5"};
  35
  36 cvar_t lookspring = {CVAR_SAVE, "lookspring","0"};
  37 cvar_t lookstrafe = {CVAR_SAVE, "lookstrafe","0"};
  38 cvar_t sensitivity = {CVAR_SAVE, "sensitivity","3", 1, 30};
  39
  40 cvar_t m_pitch = {CVAR_SAVE, "m_pitch","0.022"};
  41 cvar_t m_yaw = {CVAR_SAVE, "m_yaw","0.022"};
  42 cvar_t m_forward = {CVAR_SAVE, "m_forward","1"};
  43 cvar_t m_side = {CVAR_SAVE, "m_side","0.8"};
  44
  45 cvar_t freelook = {CVAR_SAVE, "freelook", "1"};
  46
  47 cvar_t r_draweffects = {0, "r_draweffects", "1"};
  48
  49 cvar_t cl_explosions = {CVAR_SAVE, "cl_explosions", "1"};
  50 cvar_t cl_explosions_alpha_start = {CVAR_SAVE, "cl_explosions_alpha_start", "1.5"};
  51 cvar_t cl_explosions_alpha_end = {CVAR_SAVE, "cl_explosions_alpha_end", "0"};
  52 cvar_t cl_explosions_size_start = {CVAR_SAVE, "cl_explosions_size_start", "16"};
  53 cvar_t cl_explosions_size_end = {CVAR_SAVE, "cl_explosions_size_end", "128"};
  54 cvar_t cl_explosions_lifetime = {CVAR_SAVE, "cl_explosions_lifetime", "0.5"};
  55
  56 cvar_t cl_stainmaps = {CVAR_SAVE, "cl_stainmaps", "1"};
  57
  58 cvar_t cl_beams_polygons = {CVAR_SAVE, "cl_beams_polygons", "1"};
  59 cvar_t cl_beams_relative = {CVAR_SAVE, "cl_beams_relative", "1"};
  60 cvar_t cl_beams_lightatend = {CVAR_SAVE, "cl_beams_lightatend", "0"};
  61
  62 cvar_t cl_noplayershadow = {CVAR_SAVE, "cl_noplayershadow", "0"};
  63
  64 mempool_t *cl_refdef_mempool;
  65 mempool_t *cl_entities_mempool;
  66
  67 client_static_t cls;
  68 client_state_t  cl;
  69
  70 int cl_max_entities;
  71 int cl_max_static_entities;
  72 int cl_max_temp_entities;
  73 int cl_max_effects;
  74 int cl_max_beams;
  75 int cl_max_dlights;
  76 int cl_max_lightstyle;
  77 int cl_max_brushmodel_entities;
  78
  79 entity_t *cl_entities;
  80 qbyte *cl_entities_active;
  81 entity_t *cl_static_entities;
  82 entity_t *cl_temp_entities;
  83 cl_effect_t *cl_effects;
  84 beam_t *cl_beams;
  85 dlight_t *cl_dlights;
  86 lightstyle_t *cl_lightstyle;
  87 entity_render_t **cl_brushmodel_entities;
  88
  89 int cl_num_entities;
  90 int cl_num_static_entities;
  91 int cl_num_temp_entities;
  92 int cl_num_brushmodel_entities;
  93
  94 /*
  95 =====================
  96 CL_ClearState
  97
  98 =====================
  99 */
 100 void CL_ClearState(void)
 101 {
 102         int i;
 103
 104         if (!sv.active)
 105                 Host_ClearMemory ();
 106
 107         // note: this also gets rid of the entity database
 108         Mem_EmptyPool(cl_entities_mempool);
 109
 110 // wipe the entire cl structure
 111         memset (&cl, 0, sizeof(cl));
 112
 113         SZ_Clear (&cls.message);
 114
 115         cl_num_entities = 0;
 116         cl_num_static_entities = 0;
 117         cl_num_temp_entities = 0;
 118         cl_num_brushmodel_entities = 0;
 119
 120         // tweak these if the game runs out
 121         cl_max_entities = MAX_EDICTS;
 122         cl_max_static_entities = 256;
 123         cl_max_temp_entities = 512;
 124         cl_max_effects = 256;
 125         cl_max_beams = 256;
 126         cl_max_dlights = MAX_DLIGHTS;
 127         cl_max_lightstyle = MAX_LIGHTSTYLES;
 128         cl_max_brushmodel_entities = MAX_EDICTS;
 129
 130         cl_entities = Mem_Alloc(cl_entities_mempool, cl_max_entities * sizeof(entity_t));
 131         cl_entities_active = Mem_Alloc(cl_entities_mempool, cl_max_entities * sizeof(qbyte));
 132         cl_static_entities = Mem_Alloc(cl_entities_mempool, cl_max_static_entities * sizeof(entity_t));
 133         cl_temp_entities = Mem_Alloc(cl_entities_mempool, cl_max_temp_entities * sizeof(entity_t));
 134         cl_effects = Mem_Alloc(cl_entities_mempool, cl_max_effects * sizeof(cl_effect_t));
 135         cl_beams = Mem_Alloc(cl_entities_mempool, cl_max_beams * sizeof(beam_t));
 136         cl_dlights = Mem_Alloc(cl_entities_mempool, cl_max_dlights * sizeof(dlight_t));
 137         cl_lightstyle = Mem_Alloc(cl_entities_mempool, cl_max_lightstyle * sizeof(lightstyle_t));
 138         cl_brushmodel_entities = Mem_Alloc(cl_entities_mempool, cl_max_brushmodel_entities * sizeof(entity_render_t *));
 139
 140         CL_Screen_NewMap();
 141
 142         CL_Particles_Clear();
 143
 144         // LordHavoc: have to set up the baseline info for alpha and other stuff
 145         for (i = 0;i < cl_max_entities;i++)
 146         {
 147                 ClearStateToDefault(&cl_entities[i].state_baseline);
 148                 ClearStateToDefault(&cl_entities[i].state_previous);
 149                 ClearStateToDefault(&cl_entities[i].state_current);
 150         }
 151
 152         CL_CGVM_Clear();
 153 }
 154
 155 /*
 156 =====================
 157 CL_Disconnect
 158
 159 Sends a disconnect message to the server
 160 This is also called on Host_Error, so it shouldn't cause any errors
 161 =====================
 162 */
 163 void CL_Disconnect(void)
 164 {
 165         if (cls.state == ca_dedicated)
 166                 return;
 167
 168         Con_DPrintf("CL_Disconnect\n");
 169
 170 // stop sounds (especially looping!)
 171         S_StopAllSounds (true);
 172
 173         // clear contents blends
 174         cl.cshifts[0].percent = 0;
 175         cl.cshifts[1].percent = 0;
 176         cl.cshifts[2].percent = 0;
 177         cl.cshifts[3].percent = 0;
 178
 179         cl.worldmodel = NULL;
 180
 181         if (cls.demoplayback)
 182                 CL_StopPlayback();
 183         else if (cls.netcon)
 184         {
 185                 if (cls.demorecording)
 186                         CL_Stop_f();
 187
 188                 Con_DPrint("Sending clc_disconnect\n");
 189                 SZ_Clear(&cls.message);
 190                 MSG_WriteByte(&cls.message, clc_disconnect);
 191                 NetConn_SendUnreliableMessage(cls.netcon, &cls.message);
 192                 SZ_Clear(&cls.message);
 193                 NetConn_Close(cls.netcon);
 194                 cls.netcon = NULL;
 195         }
 196         cls.state = ca_disconnected;
 197
 198         cls.demoplayback = cls.timedemo = false;
 199         cls.signon = 0;
 200 }
 201
 202 void CL_Disconnect_f(void)
 203 {
 204         CL_Disconnect ();
 205         if (sv.active)
 206                 Host_ShutdownServer (false);
 207 }
 208
 209
 210
 211
 212 /*
 213 =====================
 214 CL_EstablishConnection
 215
 216 Host should be either "local" or a net address
 217 =====================
 218 */
 219 void CL_EstablishConnection(const char *host)
 220 {
 221         if (cls.state == ca_dedicated)
 222                 return;
 223
 224         // clear menu's connect error message
 225         m_return_reason[0] = 0;
 226         cls.demonum = -1;
 227
 228         // stop demo loop in case this fails
 229         CL_Disconnect();
 230         NetConn_ClientFrame();
 231         NetConn_ServerFrame();
 232
 233         if (LHNETADDRESS_FromString(&cls.connect_address, host, 26000) && (cls.connect_mysocket = NetConn_ChooseClientSocketForAddress(&cls.connect_address)))
 234         {
 235                 cls.connect_trying = true;
 236                 cls.connect_remainingtries = 3;
 237                 cls.connect_nextsendtime = 0;
 238                 if (sv.active)
 239                 {
 240                         NetConn_ClientFrame();
 241                         NetConn_ServerFrame();
 242                         NetConn_ClientFrame();
 243                         NetConn_ServerFrame();
 244                         NetConn_ClientFrame();
 245                         NetConn_ServerFrame();
 246                         NetConn_ClientFrame();
 247                         NetConn_ServerFrame();
 248                 }
 249         }
 250         else
 251         {
 252                 Con_Print("Unable to find a suitable network socket to connect to server.\n");
 253                 strcpy(m_return_reason, "No network");
 254         }
 255 }
 256
 257 /*
 258 ==============
 259 CL_PrintEntities_f
 260 ==============
 261 */
 262 static void CL_PrintEntities_f(void)
 263 {
 264         entity_t *ent;
 265         int i, j;
 266         char name[32];
 267
 268         for (i = 0, ent = cl_entities;i < cl_num_entities;i++, ent++)
 269         {
 270                 if (!ent->state_current.active)
 271                         continue;
 272
 273                 if (ent->render.model)
 274                         strlcpy (name, ent->render.model->name, 25);
 275                 else
 276                         strcpy(name, "--no model--");
 277                 for (j = strlen(name);j < 25;j++)
 278                         name[j] = ' ';
 279                 Con_Printf("%3i: %s:%04i (%5i %5i %5i) [%3i %3i %3i] %4.2f %5.3f\n", i, name, ent->render.frame, (int) ent->render.origin[0], (int) ent->render.origin[1], (int) ent->render.origin[2], (int) ent->render.angles[0] % 360, (int) ent->render.angles[1] % 360, (int) ent->render.angles[2] % 360, ent->render.scale, ent->render.alpha);
 280         }
 281 }
 282
 283 //static const vec3_t nomodelmins = {-16, -16, -16};
 284 //static const vec3_t nomodelmaxs = {16, 16, 16};
 285 void CL_BoundingBoxForEntity(entity_render_t *ent)
 286 {
 287         if (ent->model)
 288         {
 289                 //if (ent->angles[0] || ent->angles[2])
 290                 if (ent->matrix.m[2][0] != 0 || ent->matrix.m[2][1] != 0)
 291                 {
 292                         // pitch or roll
 293                         ent->mins[0] = ent->matrix.m[0][3] + ent->model->rotatedmins[0];
 294                         ent->mins[1] = ent->matrix.m[1][3] + ent->model->rotatedmins[1];
 295                         ent->mins[2] = ent->matrix.m[2][3] + ent->model->rotatedmins[2];
 296                         ent->maxs[0] = ent->matrix.m[0][3] + ent->model->rotatedmaxs[0];
 297                         ent->maxs[1] = ent->matrix.m[1][3] + ent->model->rotatedmaxs[1];
 298                         ent->maxs[2] = ent->matrix.m[2][3] + ent->model->rotatedmaxs[2];
 299                         //VectorAdd(ent->origin, ent->model->rotatedmins, ent->mins);
 300                         //VectorAdd(ent->origin, ent->model->rotatedmaxs, ent->maxs);
 301                 }
 302                 //else if (ent->angles[1])
 303                 else if (ent->matrix.m[0][1] != 0 || ent->matrix.m[1][0] != 0)
 304                 {
 305                         // yaw
 306                         ent->mins[0] = ent->matrix.m[0][3] + ent->model->yawmins[0];
 307                         ent->mins[1] = ent->matrix.m[1][3] + ent->model->yawmins[1];
 308                         ent->mins[2] = ent->matrix.m[2][3] + ent->model->yawmins[2];
 309                         ent->maxs[0] = ent->matrix.m[0][3] + ent->model->yawmaxs[0];
 310                         ent->maxs[1] = ent->matrix.m[1][3] + ent->model->yawmaxs[1];
 311                         ent->maxs[2] = ent->matrix.m[2][3] + ent->model->yawmaxs[2];
 312                         //VectorAdd(ent->origin, ent->model->yawmins, ent->mins);
 313                         //VectorAdd(ent->origin, ent->model->yawmaxs, ent->maxs);
 314                 }
 315                 else
 316                 {
 317                         ent->mins[0] = ent->matrix.m[0][3] + ent->model->normalmins[0];
 318                         ent->mins[1] = ent->matrix.m[1][3] + ent->model->normalmins[1];
 319                         ent->mins[2] = ent->matrix.m[2][3] + ent->model->normalmins[2];
 320                         ent->maxs[0] = ent->matrix.m[0][3] + ent->model->normalmaxs[0];
 321                         ent->maxs[1] = ent->matrix.m[1][3] + ent->model->normalmaxs[1];
 322                         ent->maxs[2] = ent->matrix.m[2][3] + ent->model->normalmaxs[2];
 323                         //VectorAdd(ent->origin, ent->model->normalmins, ent->mins);
 324                         //VectorAdd(ent->origin, ent->model->normalmaxs, ent->maxs);
 325                 }
 326         }
 327         else
 328         {
 329                 ent->mins[0] = ent->matrix.m[0][3] - 16;
 330                 ent->mins[1] = ent->matrix.m[1][3] - 16;
 331                 ent->mins[2] = ent->matrix.m[2][3] - 16;
 332                 ent->maxs[0] = ent->matrix.m[0][3] + 16;
 333                 ent->maxs[1] = ent->matrix.m[1][3] + 16;
 334                 ent->maxs[2] = ent->matrix.m[2][3] + 16;
 335                 //VectorAdd(ent->origin, nomodelmins, ent->mins);
 336                 //VectorAdd(ent->origin, nomodelmaxs, ent->maxs);
 337         }
 338 }
 339
 340 /*
 341 ===============
 342 CL_LerpPoint
 343
 344 Determines the fraction between the last two messages that the objects
 345 should be put at.
 346 ===============
 347 */
 348 static float CL_LerpPoint(void)
 349 {
 350         float f;
 351
 352         // dropped packet, or start of demo
 353         if (cl.mtime[1] < cl.mtime[0] - 0.1)
 354                 cl.mtime[1] = cl.mtime[0] - 0.1;
 355
 356         cl.time = bound(cl.mtime[1], cl.time, cl.mtime[0]);
 357
 358         // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
 359         f = cl.mtime[0] - cl.mtime[1];
 360         if (!f || cl_nolerp.integer || cls.timedemo || cl.islocalgame)
 361         {
 362                 cl.time = cl.mtime[0];
 363                 return 1;
 364         }
 365
 366         f = (cl.time - cl.mtime[1]) / f;
 367         return bound(0, f, 1);
 368 }
 369
 370 void CL_ClearTempEntities (void)
 371 {
 372         cl_num_temp_entities = 0;
 373 }
 374
 375 entity_t *CL_NewTempEntity(void)
 376 {
 377         entity_t *ent;
 378
 379         if (r_refdef.numentities >= r_refdef.maxentities)
 380                 return NULL;
 381         if (cl_num_temp_entities >= cl_max_temp_entities)
 382                 return NULL;
 383         ent = &cl_temp_entities[cl_num_temp_entities++];
 384         memset (ent, 0, sizeof(*ent));
 385         r_refdef.entities[r_refdef.numentities++] = &ent->render;
 386
 387         ent->render.colormap = -1; // no special coloring
 388         ent->render.scale = 1;
 389         ent->render.alpha = 1;
 390         return ent;
 391 }
 392
 393 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
 394 {
 395         int i;
 396         cl_effect_t *e;
 397         if (!modelindex) // sanity check
 398                 return;
 399         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
 400         {
 401                 if (e->active)
 402                         continue;
 403                 e->active = true;
 404                 VectorCopy(org, e->origin);
 405                 e->modelindex = modelindex;
 406                 e->starttime = cl.time;
 407                 e->startframe = startframe;
 408                 e->endframe = startframe + framecount;
 409                 e->framerate = framerate;
 410
 411                 e->frame = 0;
 412                 e->frame1time = cl.time;
 413                 e->frame2time = cl.time;
 414                 break;
 415         }
 416 }
 417
 418 void CL_AllocDlight(entity_render_t *ent, matrix4x4_t *matrix, float radius, float red, float green, float blue, float decay, float lifetime, int cubemapnum, int style, int shadowenable, vec_t corona)
 419 {
 420         int i;
 421         dlight_t *dl;
 422
 423         /*
 424 // first look for an exact key match
 425         if (ent)
 426         {
 427                 dl = cl_dlights;
 428                 for (i = 0;i < MAX_DLIGHTS;i++, dl++)
 429                         if (dl->ent == ent)
 430                                 goto dlightsetup;
 431         }
 432         */
 433
 434 // then look for anything else
 435         dl = cl_dlights;
 436         for (i = 0;i < MAX_DLIGHTS;i++, dl++)
 437                 if (!dl->radius)
 438                         goto dlightsetup;
 439
 440         // unable to find one
 441         return;
 442
 443 dlightsetup:
 444         //Con_Printf("dlight %i : %f %f %f : %f %f %f\n", i, org[0], org[1], org[2], red * radius, green * radius, blue * radius);
 445         memset (dl, 0, sizeof(*dl));
 446         dl->matrix = *matrix;
 447         dl->ent = ent;
 448         dl->origin[0] = dl->matrix.m[0][3];
 449         dl->origin[1] = dl->matrix.m[1][3];
 450         dl->origin[2] = dl->matrix.m[2][3];
 451         CL_FindNonSolidLocation(dl->origin, dl->origin, 6);
 452         dl->matrix.m[0][3] = dl->origin[0];
 453         dl->matrix.m[1][3] = dl->origin[1];
 454         dl->matrix.m[2][3] = dl->origin[2];
 455         dl->radius = radius;
 456         dl->color[0] = red;
 457         dl->color[1] = green;
 458         dl->color[2] = blue;
 459         dl->decay = decay;
 460         if (lifetime)
 461                 dl->die = cl.time + lifetime;
 462         else
 463                 dl->die = 0;
 464         dl->cubemapnum = cubemapnum;
 465         dl->style = style;
 466         dl->shadow = shadowenable;
 467         dl->corona = corona;
 468 }
 469
 470 void CL_DecayLights(void)
 471 {
 472         int i;
 473         dlight_t *dl;
 474         float time;
 475
 476         time = cl.time - cl.oldtime;
 477         for (i = 0, dl = cl_dlights;i < MAX_DLIGHTS;i++, dl++)
 478                 if (dl->radius)
 479                         dl->radius = (cl.time < dl->die) ? max(0, dl->radius - time * dl->decay) : 0;
 480 }
 481
 482 #define MAXVIEWMODELS 32
 483 entity_t *viewmodels[MAXVIEWMODELS];
 484 int numviewmodels;
 485
 486 matrix4x4_t viewmodelmatrix;
 487
 488 static int entitylinkframenumber;
 489
 490 static const vec3_t muzzleflashorigin = {18, 0, 0};
 491
 492 extern void V_DriftPitch(void);
 493 extern void V_FadeViewFlashs(void);
 494 extern void V_CalcViewBlend(void);
 495
 496 extern void V_CalcRefdef(void);
 497 // note this is a recursive function, but it can never get in a runaway loop (because of the delayedlink flags)
 498 void CL_LinkNetworkEntity(entity_t *e)
 499 {
 500         matrix4x4_t *matrix, blendmatrix, tempmatrix, matrix2;
 501         //matrix4x4_t dlightmatrix;
 502         int j, k, l, trailtype, temp;
 503         float origin[3], angles[3], delta[3], lerp, dlightcolor[3], dlightradius, mins[3], maxs[3], v[3], v2[3], d;
 504         entity_t *t;
 505         model_t *model;
 506         //entity_persistent_t *p = &e->persistent;
 507         //entity_render_t *r = &e->render;
 508         if (e->persistent.linkframe != entitylinkframenumber)
 509         {
 510                 e->persistent.linkframe = entitylinkframenumber;
 511                 // skip inactive entities and world
 512                 if (!e->state_current.active || e == cl_entities)
 513                         return;
 514                 if (e->render.flags & RENDER_VIEWMODEL)
 515                 {
 516                         if (!r_drawviewmodel.integer || chase_active.integer || envmap)
 517                                 return;
 518                         if (cl.viewentity)
 519                                 CL_LinkNetworkEntity(cl_entities + cl.viewentity);
 520                         matrix = &viewmodelmatrix;
 521                         if (e == &cl.viewent && cl.viewentity >= 0 && cl.viewentity < MAX_EDICTS && cl_entities[cl.viewentity].state_current.active)
 522                         {
 523                                 e->state_current.alpha = cl_entities[cl.viewentity].state_current.alpha;
 524                                 e->state_current.effects = EF_NOSHADOW | (cl_entities[cl.viewentity].state_current.effects & (EF_ADDITIVE | EF_REFLECTIVE | EF_FULLBRIGHT));
 525                         }
 526                 }
 527                 else
 528                 {
 529                         t = cl_entities + e->state_current.tagentity;
 530                         if (!t->state_current.active)
 531                                 return;
 532                         // note: this can link to world
 533                         CL_LinkNetworkEntity(t);
 534                         // make relative to the entity
 535                         matrix = &t->render.matrix;
 536                         // if a valid tagindex is used, make it relative to that tag instead
 537                         if (e->state_current.tagentity && e->state_current.tagindex >= 1 && (model = t->render.model) && e->state_current.tagindex <= t->render.model->alias.aliasnum_tags)
 538                         {
 539                                 // blend the matrices
 540                                 memset(&blendmatrix, 0, sizeof(blendmatrix));
 541                                 for (j = 0;j < 4 && t->render.frameblend[j].lerp > 0;j++)
 542                                 {
 543                                         matrix = &t->render.model->alias.aliasdata_tags[t->render.frameblend[j].frame * t->render.model->alias.aliasnum_tags + (e->state_current.tagindex - 1)].matrix;
 544                                         d = t->render.frameblend[j].lerp;
 545                                         for (l = 0;l < 4;l++)
 546                                                 for (k = 0;k < 4;k++)
 547                                                         blendmatrix.m[l][k] += d * matrix->m[l][k];
 548                                 }
 549                                 // concat the tag matrices onto the entity matrix
 550                                 Matrix4x4_Concat(&tempmatrix, &t->render.matrix, &blendmatrix);
 551                                 // use the constructed tag matrix
 552                                 matrix = &tempmatrix;
 553                         }
 554                 }
 555                 e->render.alpha = e->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
 556                 e->render.scale = e->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
 557                 e->render.flags = e->state_current.flags;
 558                 if (e - cl_entities == cl.viewentity)
 559                         e->render.flags |= RENDER_EXTERIORMODEL;
 560                 e->render.effects = e->state_current.effects;
 561                 if (e->state_current.flags & RENDER_COLORMAPPED)
 562                         e->render.colormap = e->state_current.colormap;
 563                 else if (cl.scores != NULL && e->state_current.colormap)
 564                         e->render.colormap = cl.scores[e->state_current.colormap - 1].colors; // color it
 565                 else
 566                         e->render.colormap = -1; // no special coloring
 567                 e->render.skinnum = e->state_current.skin;
 568                 // set up the render matrix
 569                 if (e->state_previous.active && e->state_current.modelindex == e->state_previous.modelindex)
 570                 {
 571                         // movement lerp
 572                         if (e->persistent.lerpdeltatime > 0 && (lerp = (cl.time - e->persistent.lerpstarttime) / e->persistent.lerpdeltatime) < 1)
 573                         {
 574                                 // interpolate the origin and angles
 575                                 VectorLerp(e->persistent.oldorigin, lerp, e->persistent.neworigin, origin);
 576                                 VectorSubtract(e->persistent.newangles, e->persistent.oldangles, delta);
 577                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 578                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 579                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 580                                 VectorMA(e->persistent.oldangles, lerp, delta, angles);
 581                         }
 582                         else
 583                         {
 584                                 // no interpolation
 585                                 VectorCopy(e->persistent.neworigin, origin);
 586                                 VectorCopy(e->persistent.newangles, angles);
 587                         }
 588                         // animation lerp
 589                         if (e->render.frame2 == e->state_current.frame)
 590                         {
 591                                 // update frame lerp fraction
 592                                 e->render.framelerp = 1;
 593                                 if (e->render.frame2time > e->render.frame1time)
 594                                 {
 595                                         e->render.framelerp = (cl.time - e->render.frame2time) / (e->render.frame2time - e->render.frame1time);
 596                                         e->render.framelerp = bound(0, e->render.framelerp, 1);
 597                                 }
 598                         }
 599                         else
 600                         {
 601                                 // begin a new frame lerp
 602                                 e->render.frame1 = e->render.frame2;
 603                                 e->render.frame1time = e->render.frame2time;
 604                                 e->render.frame = e->render.frame2 = e->state_current.frame;
 605                                 e->render.frame2time = cl.time;
 606                                 e->render.framelerp = 0;
 607                                 // make sure frame lerp won't last longer than 100ms
 608                                 // (this mainly helps with models that use framegroups and
 609                                 // switch between them infrequently)
 610                                 e->render.frame1time = max(e->render.frame1time, e->render.frame2time - 0.1f);
 611                         }
 612                 }
 613                 else
 614                 {
 615                         // no interpolation
 616                         VectorCopy(e->persistent.neworigin, origin);
 617                         VectorCopy(e->persistent.newangles, angles);
 618                         e->render.frame = e->render.frame1 = e->render.frame2 = e->state_current.frame;
 619                         e->render.frame1time = e->render.frame2time = cl.time;
 620                         e->render.framelerp = 1;
 621                 }
 622
 623                 e->render.model = cl.model_precache[e->state_current.modelindex];
 624                 if (e->render.model)
 625                 {
 626                         Mod_CheckLoaded(e->render.model);
 627                         // if model is alias or this is a tenebrae-like dlight, reverse pitch direction
 628                         if (e->render.model->type == mod_alias || (e->state_current.lightpflags & PFLAGS_FULLDYNAMIC))
 629                                 angles[0] = -angles[0];
 630                         if ((e->render.model->flags & EF_ROTATE) && (!e->state_current.tagentity && !(e->render.flags & RENDER_VIEWMODEL)))
 631                         {
 632                                 angles[1] = ANGLEMOD(100*cl.time);
 633                                 if (cl_itembobheight.value)
 634                                         origin[2] += (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
 635                         }
 636                 }
 637
 638                 R_LerpAnimation(&e->render);
 639
 640                 // FIXME: e->render.scale should go away
 641                 Matrix4x4_CreateFromQuakeEntity(&matrix2, origin[0], origin[1], origin[2], angles[0], angles[1], angles[2], e->render.scale);
 642                 // concat the matrices to make the entity relative to its tag
 643                 Matrix4x4_Concat(&e->render.matrix, matrix, &matrix2);
 644                 // make the other useful stuff
 645                 Matrix4x4_Invert_Simple(&e->render.inversematrix, &e->render.matrix);
 646                 CL_BoundingBoxForEntity(&e->render);
 647
 648                 // handle effects now that we know where this entity is in the world...
 649                 origin[0] = e->render.matrix.m[0][3];
 650                 origin[1] = e->render.matrix.m[1][3];
 651                 origin[2] = e->render.matrix.m[2][3];
 652                 trailtype = -1;
 653                 dlightradius = 0;
 654                 dlightcolor[0] = 0;
 655                 dlightcolor[1] = 0;
 656                 dlightcolor[2] = 0;
 657                 // LordHavoc: if the entity has no effects, don't check each
 658                 if (e->render.effects)
 659                 {
 660                         if (e->render.effects & EF_BRIGHTFIELD)
 661                         {
 662                                 if (gamemode == GAME_NEXUIZ)
 663                                 {
 664                                         dlightradius = max(dlightradius, 200);
 665                                         dlightcolor[0] += 0.75f;
 666                                         dlightcolor[1] += 1.50f;
 667                                         dlightcolor[2] += 3.00f;
 668                                         trailtype = 8;
 669                                 }
 670                                 else
 671                                         CL_EntityParticles(e);
 672                         }
 673                         if (e->render.effects & EF_MUZZLEFLASH)
 674                                 e->persistent.muzzleflash = 1.0f;
 675                         if (e->render.effects & EF_DIMLIGHT)
 676                         {
 677                                 dlightradius = max(dlightradius, 200);
 678                                 dlightcolor[0] += 1.50f;
 679                                 dlightcolor[1] += 1.50f;
 680                                 dlightcolor[2] += 1.50f;
 681                         }
 682                         if (e->render.effects & EF_BRIGHTLIGHT)
 683                         {
 684                                 dlightradius = max(dlightradius, 400);
 685                                 dlightcolor[0] += 3.00f;
 686                                 dlightcolor[1] += 3.00f;
 687                                 dlightcolor[2] += 3.00f;
 688                         }
 689                         // LordHavoc: more effects
 690                         if (e->render.effects & EF_RED) // red
 691                         {
 692                                 dlightradius = max(dlightradius, 200);
 693                                 dlightcolor[0] += 1.50f;
 694                                 dlightcolor[1] += 0.15f;
 695                                 dlightcolor[2] += 0.15f;
 696                         }
 697                         if (e->render.effects & EF_BLUE) // blue
 698                         {
 699                                 dlightradius = max(dlightradius, 200);
 700                                 dlightcolor[0] += 0.15f;
 701                                 dlightcolor[1] += 0.15f;
 702                                 dlightcolor[2] += 1.50f;
 703                         }
 704                         if (e->render.effects & EF_FLAME)
 705                         {
 706                                 mins[0] = origin[0] - 16.0f;
 707                                 mins[1] = origin[1] - 16.0f;
 708                                 mins[2] = origin[2] - 16.0f;
 709                                 maxs[0] = origin[0] + 16.0f;
 710                                 maxs[1] = origin[1] + 16.0f;
 711                                 maxs[2] = origin[2] + 16.0f;
 712                                 // how many flames to make
 713                                 temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
 714                                 CL_FlameCube(mins, maxs, temp);
 715                                 d = lhrandom(0.75f, 1);
 716                                 dlightradius = max(dlightradius, 200);
 717                                 dlightcolor[0] += d * 2.0f;
 718                                 dlightcolor[1] += d * 1.5f;
 719                                 dlightcolor[2] += d * 0.5f;
 720                         }
 721                         if (e->render.effects & EF_STARDUST)
 722                         {
 723                                 mins[0] = origin[0] - 16.0f;
 724                                 mins[1] = origin[1] - 16.0f;
 725                                 mins[2] = origin[2] - 16.0f;
 726                                 maxs[0] = origin[0] + 16.0f;
 727                                 maxs[1] = origin[1] + 16.0f;
 728                                 maxs[2] = origin[2] + 16.0f;
 729                                 // how many particles to make
 730                                 temp = (int) (cl.time * 200) - (int) (cl.oldtime * 200);
 731                                 CL_Stardust(mins, maxs, temp);
 732                                 dlightradius = max(dlightradius, 200);
 733                                 dlightcolor[0] += 1.0f;
 734                                 dlightcolor[1] += 0.7f;
 735                                 dlightcolor[2] += 0.3f;
 736                         }
 737                 }
 738                 // muzzleflash fades over time, and is offset a bit
 739                 if (e->persistent.muzzleflash > 0)
 740                 {
 741                         Matrix4x4_Transform(&e->render.matrix, muzzleflashorigin, v2);
 742                         CL_TraceLine(origin, v2, v, NULL, true, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_SKY);
 743                         tempmatrix = e->render.matrix;
 744                         tempmatrix.m[0][3] = v[0];
 745                         tempmatrix.m[1][3] = v[1];
 746                         tempmatrix.m[2][3] = v[2];
 747                         CL_AllocDlight(NULL, &tempmatrix, 100, e->persistent.muzzleflash, e->persistent.muzzleflash, e->persistent.muzzleflash, 0, 0, 0, 0, true, 0);
 748                         e->persistent.muzzleflash -= cl.frametime * 10;
 749                 }
 750                 // LordHavoc: if the model has no flags, don't check each
 751                 if (e->render.model && e->render.model->flags && (!e->state_current.tagentity && !(e->render.flags & RENDER_VIEWMODEL)))
 752                 {
 753                         if (e->render.model->flags & EF_GIB)
 754                                 trailtype = 2;
 755                         else if (e->render.model->flags & EF_ZOMGIB)
 756                                 trailtype = 4;
 757                         else if (e->render.model->flags & EF_TRACER)
 758                         {
 759                                 trailtype = 3;
 760                                 dlightradius = max(dlightradius, 100);
 761                                 dlightcolor[0] += 0.25f;
 762                                 dlightcolor[1] += 1.00f;
 763                                 dlightcolor[2] += 0.25f;
 764                         }
 765                         else if (e->render.model->flags & EF_TRACER2)
 766                         {
 767                                 trailtype = 5;
 768                                 dlightradius = max(dlightradius, 100);
 769                                 dlightcolor[0] += 1.00f;
 770                                 dlightcolor[1] += 0.60f;
 771                                 dlightcolor[2] += 0.20f;
 772                         }
 773                         else if (e->render.model->flags & EF_ROCKET)
 774                         {
 775                                 trailtype = 0;
 776                                 dlightradius = max(dlightradius, 200);
 777                                 dlightcolor[0] += 3.00f;
 778                                 dlightcolor[1] += 1.50f;
 779                                 dlightcolor[2] += 0.50f;
 780                         }
 781                         else if (e->render.model->flags & EF_GRENADE)
 782                         {
 783                                 // LordHavoc: e->render.alpha == -1 is for Nehahra dem compatibility (cigar smoke)
 784                                 trailtype = e->render.alpha == -1 ? 7 : 1;
 785                         }
 786                         else if (e->render.model->flags & EF_TRACER3)
 787                         {
 788                                 trailtype = 6;
 789                                 if (gamemode == GAME_PRYDON)
 790                                 {
 791                                         dlightradius = max(dlightradius, 100);
 792                                         dlightcolor[0] += 0.30f;
 793                                         dlightcolor[1] += 0.60f;
 794                                         dlightcolor[2] += 1.20f;
 795                                 }
 796                                 else
 797                                 {
 798                                         dlightradius = max(dlightradius, 200);
 799                                         dlightcolor[0] += 1.20f;
 800                                         dlightcolor[1] += 0.50f;
 801                                         dlightcolor[2] += 1.00f;
 802                                 }
 803                         }
 804                 }
 805                 // LordHavoc: customizable glow
 806                 if (e->state_current.glowsize)
 807                 {
 808                         // * 4 for the expansion from 0-255 to 0-1023 range,
 809                         // / 255 to scale down byte colors
 810                         dlightradius = max(dlightradius, e->state_current.glowsize * 4);
 811                         VectorMA(dlightcolor, (1.0f / 255.0f), (qbyte *)&palette_complete[e->state_current.glowcolor], dlightcolor);
 812                 }
 813                 // make the glow dlight
 814                 if (dlightradius > 0 && (dlightcolor[0] || dlightcolor[1] || dlightcolor[2]) && !(e->render.flags & RENDER_VIEWMODEL))
 815                 {
 816                         //dlightmatrix = e->render.matrix;
 817                         // hack to make glowing player light shine on their gun
 818                         //if ((e - cl_entities) == cl.viewentity/* && !chase_active.integer*/)
 819                         //      dlightmatrix.m[2][3] += 30;
 820                         CL_AllocDlight(&e->render, &e->render.matrix, dlightradius, dlightcolor[0], dlightcolor[1], dlightcolor[2], 0, 0, 0, 0, true, 1);
 821                 }
 822                 // custom rtlight
 823                 if (e->state_current.lightpflags & PFLAGS_FULLDYNAMIC)
 824                 {
 825                         float light[4];
 826                         VectorScale(e->state_current.light, (1.0f / 256.0f), light);
 827                         light[3] = e->state_current.light[3];
 828                         if (light[0] == 0 && light[1] == 0 && light[2] == 0)
 829                                 VectorSet(light, 1, 1, 1);
 830                         if (light[3] == 0)
 831                                 light[3] = 350;
 832                         CL_AllocDlight(&e->render, &e->render.matrix, light[3], light[0], light[1], light[2], 0, 0, e->state_current.skin, e->state_current.lightstyle, !(e->state_current.lightpflags & PFLAGS_NOSHADOW), (e->state_current.lightpflags & PFLAGS_CORONA) != 0);
 833                 }
 834                 // trails need the previous frame
 835                 if (e->state_previous.active && e->state_previous.modelindex == e->state_current.modelindex)
 836                 {
 837                         if (e->render.flags & RENDER_GLOWTRAIL)
 838                                 CL_RocketTrail2(e->persistent.trail_origin, origin, e->state_current.glowcolor, e);
 839                         else if (trailtype >= 0)
 840                                 CL_RocketTrail(e->persistent.trail_origin, origin, trailtype, e);
 841                 }
 842                 VectorCopy(origin, e->persistent.trail_origin);
 843                 // note: the cl.viewentity and intermission check is to hide player
 844                 // shadow during intermission and during the Nehahra movie and
 845                 // Nehahra cinematics
 846                 if (!(e->render.effects & (EF_NOSHADOW | EF_ADDITIVE))
 847                  && (e->render.alpha == 1)
 848                  && !(e->render.flags & RENDER_VIEWMODEL)
 849                  && ((e - cl_entities) != cl.viewentity || (!cl.intermission && cl.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 850                         e->render.flags |= RENDER_SHADOW;
 851                 if (!(e->render.effects & EF_FULLBRIGHT))
 852                         e->render.flags |= RENDER_LIGHT;
 853                 // as soon as player is known we can call V_CalcRefDef
 854                 if ((e - cl_entities) == cl.viewentity)
 855                         V_CalcRefdef();
 856                 if (e->render.model && e->render.model->name[0] == '*' && e->render.model->TraceBox)
 857                         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &e->render;
 858                 if (gamemode == GAME_TENEBRAE && e->render.model && e->render.model->type == mod_sprite)
 859                         e->render.effects |= EF_ADDITIVE;
 860                 // don't show entities with no modelindex (note: this still shows
 861                 // entities which have a modelindex that resolved to a NULL model)
 862                 if (e->render.model && !(e->render.effects & EF_NODRAW) && r_refdef.numentities < r_refdef.maxentities)
 863                         r_refdef.entities[r_refdef.numentities++] = &e->render;
 864                 if (cl_num_entities < e->state_current.number + 1)
 865                         cl_num_entities = e->state_current.number + 1;
 866                 //if (cl.viewentity && e - cl_entities == cl.viewentity)
 867                 //      Matrix4x4_Print(&e->render.matrix);
 868         }
 869 }
 870
 871 void CL_RelinkWorld(void)
 872 {
 873         entity_t *ent = &cl_entities[0];
 874         if (cl_num_entities < 1)
 875                 cl_num_entities = 1;
 876         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &ent->render;
 877         // FIXME: this should be done at load
 878         Matrix4x4_CreateIdentity(&ent->render.matrix);
 879         Matrix4x4_CreateIdentity(&ent->render.inversematrix);
 880         CL_BoundingBoxForEntity(&ent->render);
 881 }
 882
 883 static void CL_RelinkStaticEntities(void)
 884 {
 885         int i;
 886         for (i = 0;i < cl_num_static_entities && r_refdef.numentities < r_refdef.maxentities;i++)
 887         {
 888                 Mod_CheckLoaded(cl_static_entities[i].render.model);
 889                 r_refdef.entities[r_refdef.numentities++] = &cl_static_entities[i].render;
 890         }
 891 }
 892
 893 /*
 894 ===============
 895 CL_RelinkEntities
 896 ===============
 897 */
 898 static void CL_RelinkNetworkEntities(void)
 899 {
 900         entity_t *ent;
 901         int i;
 902
 903         ent = &cl.viewent;
 904         ent->state_previous = ent->state_current;
 905         ClearStateToDefault(&ent->state_current);
 906         ent->state_current.time = cl.time;
 907         ent->state_current.number = -1;
 908         ent->state_current.active = true;
 909         ent->state_current.modelindex = cl.stats[STAT_WEAPON];
 910         ent->state_current.frame = cl.stats[STAT_WEAPONFRAME];
 911         ent->state_current.flags = RENDER_VIEWMODEL;
 912         if (cl.stats[STAT_HEALTH] <= 0 || cl.intermission)
 913                 ent->state_current.modelindex = 0;
 914         else if (cl.items & IT_INVISIBILITY)
 915         {
 916                 if (gamemode == GAME_TRANSFUSION)
 917                         ent->state_current.alpha = 128;
 918                 else
 919                         ent->state_current.modelindex = 0;
 920         }
 921
 922         // start on the entity after the world
 923         entitylinkframenumber++;
 924         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS;i++, ent++)
 925         {
 926                 if (cl_entities_active[i])
 927                 {
 928                         if (ent->state_current.active)
 929                                 CL_LinkNetworkEntity(ent);
 930                         else
 931                                 cl_entities_active[i] = false;
 932                 }
 933         }
 934         CL_LinkNetworkEntity(&cl.viewent);
 935 }
 936
 937 static void CL_RelinkEffects(void)
 938 {
 939         int i, intframe;
 940         cl_effect_t *e;
 941         entity_t *ent;
 942         float frame;
 943
 944         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
 945         {
 946                 if (e->active)
 947                 {
 948                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
 949                         intframe = frame;
 950                         if (intframe < 0 || intframe >= e->endframe)
 951                         {
 952                                 memset(e, 0, sizeof(*e));
 953                                 continue;
 954                         }
 955
 956                         if (intframe != e->frame)
 957                         {
 958                                 e->frame = intframe;
 959                                 e->frame1time = e->frame2time;
 960                                 e->frame2time = cl.time;
 961                         }
 962
 963                         // if we're drawing effects, get a new temp entity
 964                         // (NewTempEntity adds it to the render entities list for us)
 965                         if (r_draweffects.integer && (ent = CL_NewTempEntity()))
 966                         {
 967                                 // interpolation stuff
 968                                 ent->render.frame1 = intframe;
 969                                 ent->render.frame2 = intframe + 1;
 970                                 if (ent->render.frame2 >= e->endframe)
 971                                         ent->render.frame2 = -1; // disappear
 972                                 ent->render.framelerp = frame - intframe;
 973                                 ent->render.frame1time = e->frame1time;
 974                                 ent->render.frame2time = e->frame2time;
 975
 976                                 // normal stuff
 977                                 ent->render.model = cl.model_precache[e->modelindex];
 978                                 ent->render.frame = ent->render.frame2;
 979                                 ent->render.colormap = -1; // no special coloring
 980                                 ent->render.alpha = 1;
 981
 982                                 Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, e->origin[0], e->origin[1], e->origin[2], 0, 0, 0, 1);
 983                                 Matrix4x4_Invert_Simple(&ent->render.inversematrix, &ent->render.matrix);
 984                                 CL_BoundingBoxForEntity(&ent->render);
 985                         }
 986                 }
 987         }
 988 }
 989
 990 void CL_RelinkBeams(void)
 991 {
 992         int i;
 993         beam_t *b;
 994         vec3_t dist, org;
 995         float d;
 996         entity_t *ent;
 997         float yaw, pitch;
 998         float forward;
 999         matrix4x4_t tempmatrix;
1000
1001         for (i = 0, b = cl_beams;i < cl_max_beams;i++, b++)
1002         {
1003                 if (!b->model || b->endtime < cl.time)
1004                         continue;
1005
1006                 // if coming from the player, update the start position
1007                 //if (b->entity == cl.viewentity)
1008                 //      VectorCopy (cl_entities[cl.viewentity].render.origin, b->start);
1009                 if (cl_beams_relative.integer && b->entity && cl_entities[b->entity].state_current.active && b->relativestartvalid)
1010                 {
1011                         entity_state_t *p = &cl_entities[b->entity].state_previous;
1012                         //entity_state_t *c = &cl_entities[b->entity].state_current;
1013                         entity_render_t *r = &cl_entities[b->entity].render;
1014                         matrix4x4_t matrix, imatrix;
1015                         if (b->relativestartvalid == 2)
1016                         {
1017                                 // not really valid yet, we need to get the orientation now
1018                                 // (ParseBeam flagged this because it is received before
1019                                 //  entities are received, by now they have been received)
1020                                 // note: because players create lightning in their think
1021                                 // function (which occurs before movement), they actually
1022                                 // have some lag in it's location, so compare to the
1023                                 // previous player state, not the latest
1024                                 if (b->entity == cl.viewentity)
1025                                         Matrix4x4_CreateFromQuakeEntity(&matrix, p->origin[0], p->origin[1], p->origin[2] + 16, cl.viewangles[0], cl.viewangles[1], cl.viewangles[2], 1);
1026                                 else
1027                                         Matrix4x4_CreateFromQuakeEntity(&matrix, p->origin[0], p->origin[1], p->origin[2] + 16, p->angles[0], p->angles[1], p->angles[2], 1);
1028                                 Matrix4x4_Invert_Simple(&imatrix, &matrix);
1029                                 Matrix4x4_Transform(&imatrix, b->start, b->relativestart);
1030                                 Matrix4x4_Transform(&imatrix, b->end, b->relativeend);
1031                                 b->relativestartvalid = 1;
1032                         }
1033                         else
1034                         {
1035                                 if (b->entity == cl.viewentity)
1036                                         Matrix4x4_CreateFromQuakeEntity(&matrix, r->origin[0], r->origin[1], r->origin[2] + 16, cl.viewangles[0], cl.viewangles[1], cl.viewangles[2], 1);
1037                                 else
1038                                         Matrix4x4_CreateFromQuakeEntity(&matrix, r->origin[0], r->origin[1], r->origin[2] + 16, r->angles[0], r->angles[1], r->angles[2], 1);
1039                                 Matrix4x4_Transform(&matrix, b->relativestart, b->start);
1040                                 Matrix4x4_Transform(&matrix, b->relativeend, b->end);
1041                         }
1042                 }
1043
1044                 if (b->lightning)
1045                 {
1046                         if (cl_beams_lightatend.integer)
1047                         {
1048                                 // FIXME: create a matrix from the beam start/end orientation
1049                                 Matrix4x4_CreateTranslate(&tempmatrix, b->end[0], b->end[1], b->end[2]);
1050                                 CL_AllocDlight (NULL, &tempmatrix, 200, 0.3, 0.7, 1, 0, 0, 0, 0, true, 1);
1051                         }
1052                         if (cl_beams_polygons.integer)
1053                                 continue;
1054                 }
1055
1056                 // calculate pitch and yaw
1057                 VectorSubtract (b->end, b->start, dist);
1058
1059                 if (dist[1] == 0 && dist[0] == 0)
1060                 {
1061                         yaw = 0;
1062                         if (dist[2] > 0)
1063                                 pitch = 90;
1064                         else
1065                                 pitch = 270;
1066                 }
1067                 else
1068                 {
1069                         yaw = (int) (atan2(dist[1], dist[0]) * 180 / M_PI);
1070                         if (yaw < 0)
1071                                 yaw += 360;
1072
1073                         forward = sqrt (dist[0]*dist[0] + dist[1]*dist[1]);
1074                         pitch = (int) (atan2(dist[2], forward) * 180 / M_PI);
1075                         if (pitch < 0)
1076                                 pitch += 360;
1077                 }
1078
1079                 // add new entities for the lightning
1080                 VectorCopy (b->start, org);
1081                 d = VectorNormalizeLength(dist);
1082                 while (d > 0)
1083                 {
1084                         ent = CL_NewTempEntity ();
1085                         if (!ent)
1086                                 return;
1087                         //VectorCopy (org, ent->render.origin);
1088                         ent->render.model = b->model;
1089                         ent->render.effects = EF_FULLBRIGHT;
1090                         //ent->render.angles[0] = pitch;
1091                         //ent->render.angles[1] = yaw;
1092                         //ent->render.angles[2] = rand()%360;
1093                         Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, org[0], org[1], org[2], -pitch, yaw, lhrandom(0, 360), 1);
1094                         Matrix4x4_Invert_Simple(&ent->render.inversematrix, &ent->render.matrix);
1095                         CL_BoundingBoxForEntity(&ent->render);
1096                         VectorMA(org, 30, dist, org);
1097                         d -= 30;
1098                 }
1099         }
1100 }
1101
1102 void CL_LerpPlayer(float frac)
1103 {
1104         int i;
1105         float d;
1106
1107         cl.viewzoom = cl.viewzoomold + frac * (cl.viewzoomnew - cl.viewzoomold);
1108
1109         for (i = 0;i < 3;i++)
1110                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
1111
1112         if (cls.demoplayback)
1113         {
1114                 // interpolate the angles
1115                 for (i = 0;i < 3;i++)
1116                 {
1117                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
1118                         if (d > 180)
1119                                 d -= 360;
1120                         else if (d < -180)
1121                                 d += 360;
1122                         cl.viewangles[i] = cl.mviewangles[1][i] + frac * d;
1123                 }
1124         }
1125 }
1126
1127 /*
1128 ===============
1129 CL_ReadFromServer
1130
1131 Read all incoming data from the server
1132 ===============
1133 */
1134 int CL_ReadFromServer(void)
1135 {
1136         CL_ReadDemoMessage();
1137
1138         r_refdef.numentities = 0;
1139         cl_num_entities = 0;
1140         cl_num_brushmodel_entities = 0;
1141
1142         if (cls.state == ca_connected && cls.signon == SIGNONS)
1143         {
1144                 // prepare for a new frame
1145                 CL_LerpPlayer(CL_LerpPoint());
1146                 CL_DecayLights();
1147                 CL_ClearTempEntities();
1148                 V_DriftPitch();
1149                 V_FadeViewFlashs();
1150
1151                 // relink network entities (note: this sets up the view!)
1152                 CL_RelinkNetworkEntities();
1153
1154                 // move particles
1155                 CL_MoveParticles();
1156                 R_MoveExplosions();
1157
1158                 // link stuff
1159                 CL_RelinkWorld();
1160                 CL_RelinkStaticEntities();
1161                 CL_RelinkBeams();
1162                 CL_RelinkEffects();
1163
1164                 // run cgame code (which can add more entities)
1165                 CL_CGVM_Frame();
1166
1167                 // update view blend
1168                 V_CalcViewBlend();
1169         }
1170
1171         return 0;
1172 }
1173
1174 /*
1175 =================
1176 CL_SendCmd
1177 =================
1178 */
1179 void CL_SendCmd(usercmd_t *cmd)
1180 {
1181         if (cls.signon == SIGNONS)
1182                 CL_SendMove(cmd);
1183
1184         if (cls.demoplayback)
1185         {
1186                 SZ_Clear(&cls.message);
1187                 return;
1188         }
1189
1190         // send the reliable message (forwarded commands) if there is one
1191         if (cls.message.cursize && NetConn_CanSendMessage(cls.netcon))
1192         {
1193                 if (developer.integer)
1194                 {
1195                         Con_Print("CL_SendCmd: sending reliable message:\n");
1196                         SZ_HexDumpToConsole(&cls.message);
1197                 }
1198                 if (NetConn_SendReliableMessage(cls.netcon, &cls.message) == -1)
1199                         Host_Error("CL_WriteToServer: lost server connection");
1200                 SZ_Clear(&cls.message);
1201         }
1202 }
1203
1204 // LordHavoc: pausedemo command
1205 static void CL_PauseDemo_f (void)
1206 {
1207         cls.demopaused = !cls.demopaused;
1208         if (cls.demopaused)
1209                 Con_Print("Demo paused\n");
1210         else
1211                 Con_Print("Demo unpaused\n");
1212 }
1213
1214 /*
1215 ======================
1216 CL_Fog_f
1217 ======================
1218 */
1219 static void CL_Fog_f (void)
1220 {
1221         if (Cmd_Argc () == 1)
1222         {
1223                 Con_Printf("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
1224                 return;
1225         }
1226         fog_density = atof(Cmd_Argv(1));
1227         fog_red = atof(Cmd_Argv(2));
1228         fog_green = atof(Cmd_Argv(3));
1229         fog_blue = atof(Cmd_Argv(4));
1230 }
1231
1232 /*
1233 =================
1234 CL_Init
1235 =================
1236 */
1237 void CL_Init (void)
1238 {
1239         cl_entities_mempool = Mem_AllocPool("client entities");
1240         cl_refdef_mempool = Mem_AllocPool("refdef");
1241
1242         memset(&r_refdef, 0, sizeof(r_refdef));
1243         // max entities sent to renderer per frame
1244         r_refdef.maxentities = MAX_EDICTS + 256 + 512;
1245         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * r_refdef.maxentities);
1246         // 256k drawqueue buffer
1247         r_refdef.maxdrawqueuesize = 256 * 1024;
1248         r_refdef.drawqueue = Mem_Alloc(cl_refdef_mempool, r_refdef.maxdrawqueuesize);
1249
1250         SZ_Alloc (&cls.message, 1024, "cls.message");
1251
1252         CL_InitInput ();
1253         CL_InitTEnts ();
1254
1255 //
1256 // register our commands
1257 //
1258         Cvar_RegisterVariable (&cl_upspeed);
1259         Cvar_RegisterVariable (&cl_forwardspeed);
1260         Cvar_RegisterVariable (&cl_backspeed);
1261         Cvar_RegisterVariable (&cl_sidespeed);
1262         Cvar_RegisterVariable (&cl_movespeedkey);
1263         Cvar_RegisterVariable (&cl_yawspeed);
1264         Cvar_RegisterVariable (&cl_pitchspeed);
1265         Cvar_RegisterVariable (&cl_anglespeedkey);
1266         Cvar_RegisterVariable (&cl_shownet);
1267         Cvar_RegisterVariable (&cl_nolerp);
1268         Cvar_RegisterVariable (&lookspring);
1269         Cvar_RegisterVariable (&lookstrafe);
1270         Cvar_RegisterVariable (&sensitivity);
1271         Cvar_RegisterVariable (&freelook);
1272
1273         Cvar_RegisterVariable (&m_pitch);
1274         Cvar_RegisterVariable (&m_yaw);
1275         Cvar_RegisterVariable (&m_forward);
1276         Cvar_RegisterVariable (&m_side);
1277
1278         Cvar_RegisterVariable (&cl_itembobspeed);
1279         Cvar_RegisterVariable (&cl_itembobheight);
1280
1281         Cmd_AddCommand ("entities", CL_PrintEntities_f);
1282         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
1283         Cmd_AddCommand ("record", CL_Record_f);
1284         Cmd_AddCommand ("stop", CL_Stop_f);
1285         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
1286         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
1287
1288         Cmd_AddCommand ("fog", CL_Fog_f);
1289
1290         // LordHavoc: added pausedemo
1291         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
1292
1293         Cvar_RegisterVariable(&r_draweffects);
1294         Cvar_RegisterVariable(&cl_explosions);
1295         Cvar_RegisterVariable(&cl_explosions_alpha_start);
1296         Cvar_RegisterVariable(&cl_explosions_alpha_end);
1297         Cvar_RegisterVariable(&cl_explosions_size_start);
1298         Cvar_RegisterVariable(&cl_explosions_size_end);
1299         Cvar_RegisterVariable(&cl_explosions_lifetime);
1300         Cvar_RegisterVariable(&cl_stainmaps);
1301         Cvar_RegisterVariable(&cl_beams_polygons);
1302         Cvar_RegisterVariable(&cl_beams_relative);
1303         Cvar_RegisterVariable(&cl_beams_lightatend);
1304         Cvar_RegisterVariable(&cl_noplayershadow);
1305
1306         CL_Parse_Init();
1307         CL_Particles_Init();
1308         CL_Screen_Init();
1309         CL_CGVM_Init();
1310
1311         CL_Video_Init();
1312 }
1313