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_stainmaps = {CVAR_SAVE, "cl_stainmaps", "1"};
  51
  52 cvar_t cl_beams_polygons = {CVAR_SAVE, "cl_beams_polygons", "1"};
  53 cvar_t cl_beams_relative = {CVAR_SAVE, "cl_beams_relative", "1"};
  54 cvar_t cl_beams_lightatend = {CVAR_SAVE, "cl_beams_lightatend", "0"};
  55
  56 cvar_t cl_noplayershadow = {CVAR_SAVE, "cl_noplayershadow", "0"};
  57
  58 mempool_t *cl_refdef_mempool;
  59 mempool_t *cl_entities_mempool;
  60
  61 client_static_t cls;
  62 client_state_t  cl;
  63
  64 int cl_max_entities;
  65 int cl_max_static_entities;
  66 int cl_max_temp_entities;
  67 int cl_max_effects;
  68 int cl_max_beams;
  69 int cl_max_dlights;
  70 int cl_max_lightstyle;
  71 int cl_max_brushmodel_entities;
  72
  73 entity_t *cl_entities;
  74 qbyte *cl_entities_active;
  75 entity_t *cl_static_entities;
  76 entity_t *cl_temp_entities;
  77 cl_effect_t *cl_effects;
  78 beam_t *cl_beams;
  79 dlight_t *cl_dlights;
  80 lightstyle_t *cl_lightstyle;
  81 entity_render_t **cl_brushmodel_entities;
  82
  83 int cl_num_entities;
  84 int cl_num_static_entities;
  85 int cl_num_temp_entities;
  86 int cl_num_brushmodel_entities;
  87
  88 /*
  89 =====================
  90 CL_ClearState
  91
  92 =====================
  93 */
  94 void CL_ClearState(void)
  95 {
  96         int i;
  97
  98         if (!sv.active)
  99                 Host_ClearMemory ();
 100
 101         // note: this also gets rid of the entity database
 102         Mem_EmptyPool(cl_entities_mempool);
 103
 104 // wipe the entire cl structure
 105         memset (&cl, 0, sizeof(cl));
 106
 107         SZ_Clear (&cls.message);
 108
 109         cl_num_entities = 0;
 110         cl_num_static_entities = 0;
 111         cl_num_temp_entities = 0;
 112         cl_num_brushmodel_entities = 0;
 113
 114         // tweak these if the game runs out
 115         cl_max_entities = MAX_EDICTS;
 116         cl_max_static_entities = 256;
 117         cl_max_temp_entities = 512;
 118         cl_max_effects = 256;
 119         cl_max_beams = 24;
 120         cl_max_dlights = MAX_DLIGHTS;
 121         cl_max_lightstyle = MAX_LIGHTSTYLES;
 122         cl_max_brushmodel_entities = MAX_EDICTS;
 123
 124         cl_entities = Mem_Alloc(cl_entities_mempool, cl_max_entities * sizeof(entity_t));
 125         cl_entities_active = Mem_Alloc(cl_entities_mempool, cl_max_entities * sizeof(qbyte));
 126         cl_static_entities = Mem_Alloc(cl_entities_mempool, cl_max_static_entities * sizeof(entity_t));
 127         cl_temp_entities = Mem_Alloc(cl_entities_mempool, cl_max_temp_entities * sizeof(entity_t));
 128         cl_effects = Mem_Alloc(cl_entities_mempool, cl_max_effects * sizeof(cl_effect_t));
 129         cl_beams = Mem_Alloc(cl_entities_mempool, cl_max_beams * sizeof(beam_t));
 130         cl_dlights = Mem_Alloc(cl_entities_mempool, cl_max_dlights * sizeof(dlight_t));
 131         cl_lightstyle = Mem_Alloc(cl_entities_mempool, cl_max_lightstyle * sizeof(lightstyle_t));
 132         cl_brushmodel_entities = Mem_Alloc(cl_entities_mempool, cl_max_brushmodel_entities * sizeof(entity_render_t *));
 133
 134         CL_Screen_NewMap();
 135
 136         CL_Particles_Clear();
 137
 138         // LordHavoc: have to set up the baseline info for alpha and other stuff
 139         for (i = 0;i < cl_max_entities;i++)
 140         {
 141                 ClearStateToDefault(&cl_entities[i].state_baseline);
 142                 ClearStateToDefault(&cl_entities[i].state_previous);
 143                 ClearStateToDefault(&cl_entities[i].state_current);
 144         }
 145
 146         CL_CGVM_Clear();
 147 }
 148
 149 /*
 150 =====================
 151 CL_Disconnect
 152
 153 Sends a disconnect message to the server
 154 This is also called on Host_Error, so it shouldn't cause any errors
 155 =====================
 156 */
 157 void CL_Disconnect(void)
 158 {
 159         if (cls.state == ca_dedicated)
 160                 return;
 161
 162 // stop sounds (especially looping!)
 163         S_StopAllSounds (true);
 164
 165         // clear contents blends
 166         cl.cshifts[0].percent = 0;
 167         cl.cshifts[1].percent = 0;
 168         cl.cshifts[2].percent = 0;
 169         cl.cshifts[3].percent = 0;
 170
 171         cl.worldmodel = NULL;
 172
 173         if (cls.demoplayback)
 174                 CL_StopPlayback();
 175         else if (cls.netcon)
 176         {
 177                 if (cls.demorecording)
 178                         CL_Stop_f();
 179
 180                 Con_DPrintf("Sending clc_disconnect\n");
 181                 SZ_Clear(&cls.message);
 182                 MSG_WriteByte(&cls.message, clc_disconnect);
 183                 NetConn_SendUnreliableMessage(cls.netcon, &cls.message);
 184                 SZ_Clear(&cls.message);
 185                 NetConn_Close(cls.netcon);
 186                 cls.netcon = NULL;
 187                 // if running a local server, shut it down
 188                 if (sv.active)
 189                 {
 190                         // prevent this code from executing again during Host_ShutdownServer
 191                         cls.state = ca_disconnected;
 192                         Host_ShutdownServer(false);
 193                 }
 194         }
 195         cls.state = ca_disconnected;
 196
 197         cls.demoplayback = cls.timedemo = false;
 198         cls.signon = 0;
 199 }
 200
 201 void CL_Disconnect_f(void)
 202 {
 203         CL_Disconnect ();
 204         if (sv.active)
 205                 Host_ShutdownServer (false);
 206 }
 207
 208
 209
 210
 211 /*
 212 =====================
 213 CL_EstablishConnection
 214
 215 Host should be either "local" or a net address
 216 =====================
 217 */
 218 void CL_EstablishConnection(const char *host)
 219 {
 220         if (cls.state == ca_dedicated)
 221                 return;
 222
 223         // clear menu's connect error message
 224         m_return_reason[0] = 0;
 225         cls.demonum = -1;
 226
 227         // stop demo loop in case this fails
 228         CL_Disconnect();
 229         NetConn_ClientFrame();
 230         NetConn_ServerFrame();
 231
 232         if (LHNETADDRESS_FromString(&cls.connect_address, host, 26000) && (cls.connect_mysocket = NetConn_ChooseClientSocketForAddress(&cls.connect_address)))
 233         {
 234                 cls.connect_trying = true;
 235                 cls.connect_remainingtries = 3;
 236                 cls.connect_nextsendtime = 0;
 237                 if (sv.active)
 238                 {
 239                         NetConn_ClientFrame();
 240                         NetConn_ServerFrame();
 241                         NetConn_ClientFrame();
 242                         NetConn_ServerFrame();
 243                         NetConn_ClientFrame();
 244                         NetConn_ServerFrame();
 245                         NetConn_ClientFrame();
 246                         NetConn_ServerFrame();
 247                 }
 248         }
 249         else
 250         {
 251                 Con_Printf("Unable to find a suitable network socket to connect to server.\n");
 252                 strcpy(m_return_reason, "No network");
 253         }
 254 }
 255
 256 /*
 257 ==============
 258 CL_PrintEntities_f
 259 ==============
 260 */
 261 static void CL_PrintEntities_f(void)
 262 {
 263         entity_t *ent;
 264         int i, j;
 265         char name[32];
 266
 267         for (i = 0, ent = cl_entities;i < cl_num_entities;i++, ent++)
 268         {
 269                 if (!ent->state_current.active)
 270                         continue;
 271
 272                 if (ent->render.model)
 273                         strlcpy (name, ent->render.model->name, 25);
 274                 else
 275                         strcpy(name, "--no model--");
 276                 for (j = strlen(name);j < 25;j++)
 277                         name[j] = ' ';
 278                 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);
 279         }
 280 }
 281
 282 //static const vec3_t nomodelmins = {-16, -16, -16};
 283 //static const vec3_t nomodelmaxs = {16, 16, 16};
 284 void CL_BoundingBoxForEntity(entity_render_t *ent)
 285 {
 286         if (ent->model)
 287         {
 288                 //if (ent->angles[0] || ent->angles[2])
 289                 if (ent->matrix.m[2][0] != 0 || ent->matrix.m[2][1] != 0)
 290                 {
 291                         // pitch or roll
 292                         ent->mins[0] = ent->matrix.m[0][3] + ent->model->rotatedmins[0];
 293                         ent->mins[1] = ent->matrix.m[1][3] + ent->model->rotatedmins[1];
 294                         ent->mins[2] = ent->matrix.m[2][3] + ent->model->rotatedmins[2];
 295                         ent->maxs[0] = ent->matrix.m[0][3] + ent->model->rotatedmaxs[0];
 296                         ent->maxs[1] = ent->matrix.m[1][3] + ent->model->rotatedmaxs[1];
 297                         ent->maxs[2] = ent->matrix.m[2][3] + ent->model->rotatedmaxs[2];
 298                         //VectorAdd(ent->origin, ent->model->rotatedmins, ent->mins);
 299                         //VectorAdd(ent->origin, ent->model->rotatedmaxs, ent->maxs);
 300                 }
 301                 //else if (ent->angles[1])
 302                 else if (ent->matrix.m[0][1] != 0 || ent->matrix.m[1][0] != 0)
 303                 {
 304                         // yaw
 305                         ent->mins[0] = ent->matrix.m[0][3] + ent->model->yawmins[0];
 306                         ent->mins[1] = ent->matrix.m[1][3] + ent->model->yawmins[1];
 307                         ent->mins[2] = ent->matrix.m[2][3] + ent->model->yawmins[2];
 308                         ent->maxs[0] = ent->matrix.m[0][3] + ent->model->yawmaxs[0];
 309                         ent->maxs[1] = ent->matrix.m[1][3] + ent->model->yawmaxs[1];
 310                         ent->maxs[2] = ent->matrix.m[2][3] + ent->model->yawmaxs[2];
 311                         //VectorAdd(ent->origin, ent->model->yawmins, ent->mins);
 312                         //VectorAdd(ent->origin, ent->model->yawmaxs, ent->maxs);
 313                 }
 314                 else
 315                 {
 316                         ent->mins[0] = ent->matrix.m[0][3] + ent->model->normalmins[0];
 317                         ent->mins[1] = ent->matrix.m[1][3] + ent->model->normalmins[1];
 318                         ent->mins[2] = ent->matrix.m[2][3] + ent->model->normalmins[2];
 319                         ent->maxs[0] = ent->matrix.m[0][3] + ent->model->normalmaxs[0];
 320                         ent->maxs[1] = ent->matrix.m[1][3] + ent->model->normalmaxs[1];
 321                         ent->maxs[2] = ent->matrix.m[2][3] + ent->model->normalmaxs[2];
 322                         //VectorAdd(ent->origin, ent->model->normalmins, ent->mins);
 323                         //VectorAdd(ent->origin, ent->model->normalmaxs, ent->maxs);
 324                 }
 325         }
 326         else
 327         {
 328                 ent->mins[0] = ent->matrix.m[0][3] - 16;
 329                 ent->mins[1] = ent->matrix.m[1][3] - 16;
 330                 ent->mins[2] = ent->matrix.m[2][3] - 16;
 331                 ent->maxs[0] = ent->matrix.m[0][3] + 16;
 332                 ent->maxs[1] = ent->matrix.m[1][3] + 16;
 333                 ent->maxs[2] = ent->matrix.m[2][3] + 16;
 334                 //VectorAdd(ent->origin, nomodelmins, ent->mins);
 335                 //VectorAdd(ent->origin, nomodelmaxs, ent->maxs);
 336         }
 337 }
 338
 339 /*
 340 ===============
 341 CL_LerpPoint
 342
 343 Determines the fraction between the last two messages that the objects
 344 should be put at.
 345 ===============
 346 */
 347 static float CL_LerpPoint(void)
 348 {
 349         float f;
 350
 351         // dropped packet, or start of demo
 352         if (cl.mtime[1] < cl.mtime[0] - 0.1)
 353                 cl.mtime[1] = cl.mtime[0] - 0.1;
 354
 355         cl.time = bound(cl.mtime[1], cl.time, cl.mtime[0]);
 356
 357         // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
 358         f = cl.mtime[0] - cl.mtime[1];
 359         if (!f || cl_nolerp.integer || cls.timedemo || cl.islocalgame)
 360         {
 361                 cl.time = cl.mtime[0];
 362                 return 1;
 363         }
 364
 365         f = (cl.time - cl.mtime[1]) / f;
 366         return bound(0, f, 1);
 367 }
 368
 369 void CL_ClearTempEntities (void)
 370 {
 371         cl_num_temp_entities = 0;
 372 }
 373
 374 entity_t *CL_NewTempEntity(void)
 375 {
 376         entity_t *ent;
 377
 378         if (r_refdef.numentities >= r_refdef.maxentities)
 379                 return NULL;
 380         if (cl_num_temp_entities >= cl_max_temp_entities)
 381                 return NULL;
 382         ent = &cl_temp_entities[cl_num_temp_entities++];
 383         memset (ent, 0, sizeof(*ent));
 384         r_refdef.entities[r_refdef.numentities++] = &ent->render;
 385
 386         ent->render.colormap = -1; // no special coloring
 387         ent->render.scale = 1;
 388         ent->render.alpha = 1;
 389         return ent;
 390 }
 391
 392 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
 393 {
 394         int i;
 395         cl_effect_t *e;
 396         if (!modelindex) // sanity check
 397                 return;
 398         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
 399         {
 400                 if (e->active)
 401                         continue;
 402                 e->active = true;
 403                 VectorCopy(org, e->origin);
 404                 e->modelindex = modelindex;
 405                 e->starttime = cl.time;
 406                 e->startframe = startframe;
 407                 e->endframe = startframe + framecount;
 408                 e->framerate = framerate;
 409
 410                 e->frame = 0;
 411                 e->frame1time = cl.time;
 412                 e->frame2time = cl.time;
 413                 break;
 414         }
 415 }
 416
 417 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)
 418 {
 419         int i;
 420         dlight_t *dl;
 421
 422         /*
 423 // first look for an exact key match
 424         if (ent)
 425         {
 426                 dl = cl_dlights;
 427                 for (i = 0;i < MAX_DLIGHTS;i++, dl++)
 428                         if (dl->ent == ent)
 429                                 goto dlightsetup;
 430         }
 431         */
 432
 433 // then look for anything else
 434         dl = cl_dlights;
 435         for (i = 0;i < MAX_DLIGHTS;i++, dl++)
 436                 if (!dl->radius)
 437                         goto dlightsetup;
 438
 439         // unable to find one
 440         return;
 441
 442 dlightsetup:
 443         //Con_Printf("dlight %i : %f %f %f : %f %f %f\n", i, org[0], org[1], org[2], red * radius, green * radius, blue * radius);
 444         memset (dl, 0, sizeof(*dl));
 445         dl->matrix = *matrix;
 446         dl->ent = ent;
 447         dl->origin[0] = dl->matrix.m[0][3];
 448         dl->origin[1] = dl->matrix.m[1][3];
 449         dl->origin[2] = dl->matrix.m[2][3];
 450         CL_FindNonSolidLocation(dl->origin, dl->origin, 6);
 451         dl->matrix.m[0][3] = dl->origin[0];
 452         dl->matrix.m[1][3] = dl->origin[1];
 453         dl->matrix.m[2][3] = dl->origin[2];
 454         dl->radius = radius;
 455         dl->color[0] = red;
 456         dl->color[1] = green;
 457         dl->color[2] = blue;
 458         dl->decay = decay;
 459         if (lifetime)
 460                 dl->die = cl.time + lifetime;
 461         else
 462                 dl->die = 0;
 463         dl->cubemapnum = cubemapnum;
 464         dl->style = style;
 465         dl->shadow = shadowenable;
 466         dl->corona = corona;
 467 }
 468
 469 void CL_DecayLights(void)
 470 {
 471         int i;
 472         dlight_t *dl;
 473         float time;
 474
 475         time = cl.time - cl.oldtime;
 476         for (i = 0, dl = cl_dlights;i < MAX_DLIGHTS;i++, dl++)
 477                 if (dl->radius)
 478                         dl->radius = (cl.time < dl->die) ? max(0, dl->radius - time * dl->decay) : 0;
 479 }
 480
 481 #define MAXVIEWMODELS 32
 482 entity_t *viewmodels[MAXVIEWMODELS];
 483 int numviewmodels;
 484
 485 matrix4x4_t viewmodelmatrix;
 486
 487 static int entitylinkframenumber;
 488
 489 static const vec3_t muzzleflashorigin = {18, 0, 0};
 490
 491 extern void V_DriftPitch(void);
 492 extern void V_FadeViewFlashs(void);
 493 extern void V_CalcViewBlend(void);
 494
 495 extern void V_CalcRefdef(void);
 496 // note this is a recursive function, but it can never get in a runaway loop (because of the delayedlink flags)
 497 void CL_LinkNetworkEntity(entity_t *e)
 498 {
 499         matrix4x4_t *matrix, blendmatrix, tempmatrix, matrix2, dlightmatrix;
 500         int j, k, l, trailtype, temp;
 501         float origin[3], angles[3], delta[3], lerp, dlightcolor[3], dlightradius, mins[3], maxs[3], v[3], v2[3], d;
 502         entity_t *t;
 503         model_t *model;
 504         //entity_persistent_t *p = &e->persistent;
 505         //entity_render_t *r = &e->render;
 506         if (e->persistent.linkframe != entitylinkframenumber)
 507         {
 508                 e->persistent.linkframe = entitylinkframenumber;
 509                 // skip inactive entities and world
 510                 if (!e->state_current.active || e == cl_entities)
 511                         return;
 512                 if (e->render.flags & RENDER_VIEWMODEL)
 513                 {
 514                         if (!r_drawviewmodel.integer || chase_active.integer || envmap)
 515                                 return;
 516                         if (cl.viewentity)
 517                                 CL_LinkNetworkEntity(cl_entities + cl.viewentity);
 518                         matrix = &viewmodelmatrix;
 519                         if (e == &cl.viewent && cl.viewentity >= 0 && cl.viewentity < MAX_EDICTS && cl_entities[cl.viewentity].state_current.active)
 520                         {
 521                                 e->state_current.alpha = cl_entities[cl.viewentity].state_current.alpha;
 522                                 e->state_current.effects = EF_NOSHADOW | (cl_entities[cl.viewentity].state_current.effects & (EF_ADDITIVE | EF_REFLECTIVE | EF_FULLBRIGHT));
 523                         }
 524                 }
 525                 else
 526                 {
 527                         t = cl_entities + e->state_current.tagentity;
 528                         if (!t->state_current.active)
 529                                 return;
 530                         // note: this can link to world
 531                         CL_LinkNetworkEntity(t);
 532                         // make relative to the entity
 533                         matrix = &t->render.matrix;
 534                         // if a valid tagindex is used, make it relative to that tag instead
 535                         if (e->state_current.tagentity && e->state_current.tagindex >= 1 && (model = t->render.model) && e->state_current.tagindex <= t->render.model->alias.aliasnum_tags)
 536                         {
 537                                 // blend the matrices
 538                                 memset(&blendmatrix, 0, sizeof(blendmatrix));
 539                                 for (j = 0;j < 4 && t->render.frameblend[j].lerp > 0;j++)
 540                                 {
 541                                         matrix = &t->render.model->alias.aliasdata_tags[t->render.frameblend[j].frame * t->render.model->alias.aliasnum_tags + (e->state_current.tagindex - 1)].matrix;
 542                                         d = t->render.frameblend[j].lerp;
 543                                         for (l = 0;l < 4;l++)
 544                                                 for (k = 0;k < 4;k++)
 545                                                         blendmatrix.m[l][k] += d * matrix->m[l][k];
 546                                 }
 547                                 // concat the tag matrices onto the entity matrix
 548                                 Matrix4x4_Concat(&tempmatrix, &t->render.matrix, &blendmatrix);
 549                                 // use the constructed tag matrix
 550                                 matrix = &tempmatrix;
 551                         }
 552                 }
 553                 e->render.alpha = e->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
 554                 e->render.scale = e->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
 555                 e->render.flags = e->state_current.flags;
 556                 if (e - cl_entities == cl.viewentity)
 557                         e->render.flags |= RENDER_EXTERIORMODEL;
 558                 e->render.effects = e->state_current.effects;
 559                 if (e->state_current.flags & RENDER_COLORMAPPED)
 560                         e->render.colormap = e->state_current.colormap;
 561                 else if (cl.scores != NULL && e->state_current.colormap)
 562                         e->render.colormap = cl.scores[e->state_current.colormap - 1].colors; // color it
 563                 else
 564                         e->render.colormap = -1; // no special coloring
 565                 e->render.skinnum = e->state_current.skin;
 566                 // set up the render matrix
 567                 if (e->state_previous.active && e->state_current.modelindex == e->state_previous.modelindex)
 568                 {
 569                         // movement lerp
 570                         if (e->persistent.lerpdeltatime > 0 && (lerp = (cl.time - e->persistent.lerpstarttime) / e->persistent.lerpdeltatime) < 1)
 571                         {
 572                                 // interpolate the origin and angles
 573                                 VectorLerp(e->persistent.oldorigin, lerp, e->persistent.neworigin, origin);
 574                                 VectorSubtract(e->persistent.newangles, e->persistent.oldangles, delta);
 575                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 576                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 577                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 578                                 VectorMA(e->persistent.oldangles, lerp, delta, angles);
 579                         }
 580                         else
 581                         {
 582                                 // no interpolation
 583                                 VectorCopy(e->persistent.neworigin, origin);
 584                                 VectorCopy(e->persistent.newangles, angles);
 585                         }
 586                         // animation lerp
 587                         if (e->render.frame2 == e->state_current.frame)
 588                         {
 589                                 // update frame lerp fraction
 590                                 e->render.framelerp = 1;
 591                                 if (e->render.frame2time > e->render.frame1time)
 592                                 {
 593                                         e->render.framelerp = (cl.time - e->render.frame2time) / (e->render.frame2time - e->render.frame1time);
 594                                         e->render.framelerp = bound(0, e->render.framelerp, 1);
 595                                 }
 596                         }
 597                         else
 598                         {
 599                                 // begin a new frame lerp
 600                                 e->render.frame1 = e->render.frame2;
 601                                 e->render.frame1time = e->render.frame2time;
 602                                 e->render.frame = e->render.frame2 = e->state_current.frame;
 603                                 e->render.frame2time = cl.time;
 604                                 e->render.framelerp = 0;
 605                                 // make sure frame lerp won't last longer than 100ms
 606                                 // (this mainly helps with models that use framegroups and
 607                                 // switch between them infrequently)
 608                                 e->render.frame1time = max(e->render.frame1time, e->render.frame2time - 0.1f);
 609                         }
 610                 }
 611                 else
 612                 {
 613                         // no interpolation
 614                         VectorCopy(e->persistent.neworigin, origin);
 615                         VectorCopy(e->persistent.newangles, angles);
 616                         e->render.frame = e->render.frame1 = e->render.frame2 = e->state_current.frame;
 617                         e->render.frame1time = e->render.frame2time = cl.time;
 618                         e->render.framelerp = 1;
 619                 }
 620
 621                 e->render.model = cl.model_precache[e->state_current.modelindex];
 622                 if (e->render.model)
 623                 {
 624                         Mod_CheckLoaded(e->render.model);
 625                         if (e->render.model->type == mod_alias || e->render.model->type == mod_sprite)
 626                                 angles[0] = -angles[0];
 627                         if ((e->render.model->flags & EF_ROTATE) && (!e->state_current.tagentity && !(e->render.flags & RENDER_VIEWMODEL)))
 628                         {
 629                                 angles[1] = ANGLEMOD(100*cl.time);
 630                                 if (cl_itembobheight.value)
 631                                         origin[2] += (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
 632                         }
 633                 }
 634
 635                 R_LerpAnimation(&e->render);
 636
 637                 // FIXME: e->render.scale should go away
 638                 Matrix4x4_CreateFromQuakeEntity(&matrix2, origin[0], origin[1], origin[2], angles[0], angles[1], angles[2], e->render.scale);
 639                 // concat the matrices to make the entity relative to its tag
 640                 Matrix4x4_Concat(&e->render.matrix, matrix, &matrix2);
 641                 // make the other useful stuff
 642                 Matrix4x4_Invert_Simple(&e->render.inversematrix, &e->render.matrix);
 643                 CL_BoundingBoxForEntity(&e->render);
 644
 645                 // handle effects now that we know where this entity is in the world...
 646                 origin[0] = e->render.matrix.m[0][3];
 647                 origin[1] = e->render.matrix.m[1][3];
 648                 origin[2] = e->render.matrix.m[2][3];
 649                 trailtype = -1;
 650                 dlightradius = 0;
 651                 dlightcolor[0] = 0;
 652                 dlightcolor[1] = 0;
 653                 dlightcolor[2] = 0;
 654                 // LordHavoc: if the entity has no effects, don't check each
 655                 if (e->render.effects)
 656                 {
 657                         if (e->render.effects & EF_BRIGHTFIELD)
 658                         {
 659                                 if (gamemode == GAME_NEXUIZ)
 660                                 {
 661                                         dlightradius = max(dlightradius, 200);
 662                                         dlightcolor[0] += 0.390625f;
 663                                         dlightcolor[1] += 0.781250f;
 664                                         dlightcolor[2] += 1.562500f;
 665                                         trailtype = 8;
 666                                 }
 667                                 else
 668                                         CL_EntityParticles(e);
 669                         }
 670                         if (e->render.effects & EF_MUZZLEFLASH)
 671                                 e->persistent.muzzleflash = 100.0f;
 672                         if (e->render.effects & EF_DIMLIGHT)
 673                         {
 674                                 dlightradius = max(dlightradius, 200);
 675                                 dlightcolor[0] += 0.781250f;
 676                                 dlightcolor[1] += 0.781250f;
 677                                 dlightcolor[2] += 0.781250f;
 678                         }
 679                         if (e->render.effects & EF_BRIGHTLIGHT)
 680                         {
 681                                 dlightradius = max(dlightradius, 400);
 682                                 dlightcolor[0] += 1.562500f;
 683                                 dlightcolor[1] += 1.562500f;
 684                                 dlightcolor[2] += 1.562500f;
 685                         }
 686                         // LordHavoc: more effects
 687                         if (e->render.effects & EF_RED) // red
 688                         {
 689                                 dlightradius = max(dlightradius, 200);
 690                                 dlightcolor[0] += 0.781250f;
 691                                 dlightcolor[1] += 0.078125f;
 692                                 dlightcolor[2] += 0.078125f;
 693                         }
 694                         if (e->render.effects & EF_BLUE) // blue
 695                         {
 696                                 dlightradius = max(dlightradius, 200);
 697                                 dlightcolor[0] += 0.078125f;
 698                                 dlightcolor[1] += 0.078125f;
 699                                 dlightcolor[2] += 0.781250f;
 700                         }
 701                         if (e->render.effects & EF_FLAME)
 702                         {
 703                                 mins[0] = origin[0] - 16.0f;
 704                                 mins[1] = origin[1] - 16.0f;
 705                                 mins[2] = origin[2] - 16.0f;
 706                                 maxs[0] = origin[0] + 16.0f;
 707                                 maxs[1] = origin[1] + 16.0f;
 708                                 maxs[2] = origin[2] + 16.0f;
 709                                 // how many flames to make
 710                                 temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
 711                                 CL_FlameCube(mins, maxs, temp);
 712                                 d = lhrandom(0.75f, 1);
 713                                 dlightradius = max(dlightradius, 200);
 714                                 dlightcolor[0] += d * 1.0f;
 715                                 dlightcolor[1] += d * 0.7f;
 716                                 dlightcolor[2] += d * 0.3f;
 717                         }
 718                         if (e->render.effects & EF_STARDUST)
 719                         {
 720                                 mins[0] = origin[0] - 16.0f;
 721                                 mins[1] = origin[1] - 16.0f;
 722                                 mins[2] = origin[2] - 16.0f;
 723                                 maxs[0] = origin[0] + 16.0f;
 724                                 maxs[1] = origin[1] + 16.0f;
 725                                 maxs[2] = origin[2] + 16.0f;
 726                                 // how many particles to make
 727                                 temp = (int) (cl.time * 200) - (int) (cl.oldtime * 200);
 728                                 CL_Stardust(mins, maxs, temp);
 729                                 d = 0.390625f;
 730                                 dlightradius = max(dlightradius, 200);
 731                                 dlightcolor[0] += d * 1.0f;
 732                                 dlightcolor[1] += d * 0.7f;
 733                                 dlightcolor[2] += d * 0.3f;
 734                         }
 735                 }
 736                 // muzzleflash fades over time, and is offset a bit
 737                 if (e->persistent.muzzleflash > 0)
 738                 {
 739                         Matrix4x4_Transform(&e->render.matrix, muzzleflashorigin, v2);
 740                         CL_TraceLine(origin, v2, v, NULL, true, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_SKY);
 741                         tempmatrix = e->render.matrix;
 742                         tempmatrix.m[0][3] = v[0];
 743                         tempmatrix.m[1][3] = v[1];
 744                         tempmatrix.m[2][3] = v[2];
 745                         CL_AllocDlight(NULL, &tempmatrix, e->persistent.muzzleflash, 1, 1, 1, 0, 0, 0, 0, true, 1);
 746                         e->persistent.muzzleflash -= cl.frametime * 1000;
 747                 }
 748                 // LordHavoc: if the model has no flags, don't check each
 749                 if (e->render.model && e->render.model->flags && (!e->state_current.tagentity && !(e->render.flags & RENDER_VIEWMODEL)))
 750                 {
 751                         if (e->render.model->flags & EF_GIB)
 752                                 trailtype = 2;
 753                         else if (e->render.model->flags & EF_ZOMGIB)
 754                                 trailtype = 4;
 755                         else if (e->render.model->flags & EF_TRACER)
 756                         {
 757                                 trailtype = 3;
 758                                 dlightradius = max(dlightradius, 100);
 759                                 dlightcolor[0] += 0.060000f;
 760                                 dlightcolor[1] += 0.250000f;
 761                                 dlightcolor[2] += 0.062500f;
 762                         }
 763                         else if (e->render.model->flags & EF_TRACER2)
 764                         {
 765                                 trailtype = 5;
 766                                 dlightradius = max(dlightradius, 100);
 767                                 dlightcolor[0] += 0.312500f;
 768                                 dlightcolor[1] += 0.187500f;
 769                                 dlightcolor[2] += 0.062500f;
 770                         }
 771                         else if (e->render.model->flags & EF_ROCKET)
 772                         {
 773                                 trailtype = 0;
 774                                 dlightradius = max(dlightradius, 200);
 775                                 dlightcolor[0] += 0.781250f;
 776                                 dlightcolor[1] += 0.625000f;
 777                                 dlightcolor[2] += 0.312500f;
 778                         }
 779                         else if (e->render.model->flags & EF_GRENADE)
 780                         {
 781                                 // LordHavoc: e->render.alpha == -1 is for Nehahra dem compatibility (cigar smoke)
 782                                 trailtype = e->render.alpha == -1 ? 7 : 1;
 783                         }
 784                         else if (e->render.model->flags & EF_TRACER3)
 785                         {
 786                                 trailtype = 6;
 787                                 dlightradius = max(dlightradius, 200);
 788                                 dlightcolor[0] += 0.312500f;
 789                                 dlightcolor[1] += 0.125000f;
 790                                 dlightcolor[2] += 0.250000f;
 791                         }
 792                 }
 793                 // LordHavoc: customizable glow
 794                 if (e->state_current.glowsize)
 795                 {
 796                         // * 4 for the expansion from 0-255 to 0-1023 range,
 797                         // / 255 to scale down byte colors
 798                         dlightradius = max(dlightradius, e->state_current.glowsize * 4);
 799                         VectorMA(dlightcolor, (1.0f / 255.0f), (qbyte *)&palette_complete[e->state_current.glowcolor], dlightcolor);
 800                 }
 801                 if (e->state_current.light[3])
 802                 {
 803                         dlightradius = max(dlightradius, e->state_current.light[3]);
 804                         if (VectorLength2(dlightcolor) == 0)
 805                                 (dlightcolor[0] += 1, dlightcolor[1] += 1, dlightcolor[2] += 1);
 806                         else
 807                                 VectorMA(dlightcolor, (1.0f/256.0f), e->state_current.light, dlightcolor);
 808                 }
 809                 // make the dlight
 810                 if (dlightradius > 0 && (dlightcolor[0] || dlightcolor[1] || dlightcolor[2]) && !(e->render.flags & RENDER_VIEWMODEL))
 811                 {
 812                         dlightmatrix = e->render.matrix;
 813                         // hack to make glowing player light shine on their gun
 814                         if ((e - cl_entities) == cl.viewentity/* && !chase_active.integer*/)
 815                                 dlightmatrix.m[2][3] += 30;
 816                         CL_AllocDlight(&e->render, &dlightmatrix, dlightradius, dlightcolor[0], dlightcolor[1], dlightcolor[2], 0, 0, e->state_current.skin >= 16 ? e->state_current.skin : 0, e->state_current.lightstyle, !(e->state_current.lightpflags & 1), 1);
 817                 }
 818                 // trails need the previous frame
 819                 if (e->state_previous.active && e->state_previous.modelindex == e->state_current.modelindex)
 820                 {
 821                         if (e->render.flags & RENDER_GLOWTRAIL)
 822                                 CL_RocketTrail2(e->persistent.trail_origin, origin, e->state_current.glowcolor, e);
 823                         else if (trailtype >= 0)
 824                                 CL_RocketTrail(e->persistent.trail_origin, origin, trailtype, e);
 825                 }
 826                 VectorCopy(origin, e->persistent.trail_origin);
 827                 // note: the cl.viewentity and intermission check is to hide player
 828                 // shadow during intermission and during the Nehahra movie and
 829                 // Nehahra cinematics
 830                 if (!(e->render.effects & (EF_NOSHADOW | EF_ADDITIVE))
 831                  && (e->render.alpha == 1)
 832                  && !(e->render.flags & RENDER_VIEWMODEL)
 833                  && ((e - cl_entities) != cl.viewentity || (!cl.intermission && cl.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 834                         e->render.flags |= RENDER_SHADOW;
 835                 // as soon as player is known we can call V_CalcRefDef
 836                 if ((e - cl_entities) == cl.viewentity)
 837                         V_CalcRefdef();
 838                 if (e->render.model && e->render.model->name[0] == '*' && e->render.model->TraceBox)
 839                         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &e->render;
 840                 // don't show entities with no modelindex (note: this still shows
 841                 // entities which have a modelindex that resolved to a NULL model)
 842                 if (e->render.model && !(e->render.effects & EF_NODRAW) && r_refdef.numentities < r_refdef.maxentities)
 843                         r_refdef.entities[r_refdef.numentities++] = &e->render;
 844                 if (cl_num_entities < e->state_current.number + 1)
 845                         cl_num_entities = e->state_current.number + 1;
 846                 //if (cl.viewentity && e - cl_entities == cl.viewentity)
 847                 //      Matrix4x4_Print(&e->render.matrix);
 848         }
 849 }
 850
 851 void CL_RelinkWorld(void)
 852 {
 853         entity_t *ent = &cl_entities[0];
 854         if (cl_num_entities < 1)
 855                 cl_num_entities = 1;
 856         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &ent->render;
 857         // FIXME: this should be done at load
 858         Matrix4x4_CreateIdentity(&ent->render.matrix);
 859         Matrix4x4_CreateIdentity(&ent->render.inversematrix);
 860         CL_BoundingBoxForEntity(&ent->render);
 861 }
 862
 863 static void CL_RelinkStaticEntities(void)
 864 {
 865         int i;
 866         for (i = 0;i < cl_num_static_entities && r_refdef.numentities < r_refdef.maxentities;i++)
 867         {
 868                 Mod_CheckLoaded(cl_static_entities[i].render.model);
 869                 r_refdef.entities[r_refdef.numentities++] = &cl_static_entities[i].render;
 870         }
 871 }
 872
 873 /*
 874 ===============
 875 CL_RelinkEntities
 876 ===============
 877 */
 878 static void CL_RelinkNetworkEntities(void)
 879 {
 880         entity_t *ent;
 881         int i;
 882
 883         ent = &cl.viewent;
 884         ent->state_previous = ent->state_current;
 885         ClearStateToDefault(&ent->state_current);
 886         ent->state_current.time = cl.time;
 887         ent->state_current.number = -1;
 888         ent->state_current.active = true;
 889         ent->state_current.modelindex = cl.stats[STAT_WEAPON];
 890         ent->state_current.frame = cl.stats[STAT_WEAPONFRAME];
 891         ent->state_current.flags = RENDER_VIEWMODEL;
 892         if (cl.stats[STAT_HEALTH] <= 0 || cl.intermission)
 893                 ent->state_current.modelindex = 0;
 894         else if (cl.items & IT_INVISIBILITY)
 895         {
 896                 if (gamemode == GAME_TRANSFUSION)
 897                         ent->state_current.alpha = 128;
 898                 else
 899                         ent->state_current.modelindex = 0;
 900         }
 901
 902         // start on the entity after the world
 903         entitylinkframenumber++;
 904         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS;i++, ent++)
 905         {
 906                 if (cl_entities_active[i])
 907                 {
 908                         if (ent->state_current.active)
 909                                 CL_LinkNetworkEntity(ent);
 910                         else
 911                                 cl_entities_active[i] = false;
 912                 }
 913         }
 914         CL_LinkNetworkEntity(&cl.viewent);
 915 }
 916
 917 static void CL_RelinkEffects(void)
 918 {
 919         int i, intframe;
 920         cl_effect_t *e;
 921         entity_t *ent;
 922         float frame;
 923
 924         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
 925         {
 926                 if (e->active)
 927                 {
 928                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
 929                         intframe = frame;
 930                         if (intframe < 0 || intframe >= e->endframe)
 931                         {
 932                                 memset(e, 0, sizeof(*e));
 933                                 continue;
 934                         }
 935
 936                         if (intframe != e->frame)
 937                         {
 938                                 e->frame = intframe;
 939                                 e->frame1time = e->frame2time;
 940                                 e->frame2time = cl.time;
 941                         }
 942
 943                         // if we're drawing effects, get a new temp entity
 944                         // (NewTempEntity adds it to the render entities list for us)
 945                         if (r_draweffects.integer && (ent = CL_NewTempEntity()))
 946                         {
 947                                 // interpolation stuff
 948                                 ent->render.frame1 = intframe;
 949                                 ent->render.frame2 = intframe + 1;
 950                                 if (ent->render.frame2 >= e->endframe)
 951                                         ent->render.frame2 = -1; // disappear
 952                                 ent->render.framelerp = frame - intframe;
 953                                 ent->render.frame1time = e->frame1time;
 954                                 ent->render.frame2time = e->frame2time;
 955
 956                                 // normal stuff
 957                                 ent->render.model = cl.model_precache[e->modelindex];
 958                                 ent->render.frame = ent->render.frame2;
 959                                 ent->render.colormap = -1; // no special coloring
 960                                 ent->render.alpha = 1;
 961
 962                                 Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, e->origin[0], e->origin[1], e->origin[2], 0, 0, 0, 1);
 963                                 Matrix4x4_Invert_Simple(&ent->render.inversematrix, &ent->render.matrix);
 964                                 CL_BoundingBoxForEntity(&ent->render);
 965                         }
 966                 }
 967         }
 968 }
 969
 970 void CL_RelinkBeams(void)
 971 {
 972         int i;
 973         beam_t *b;
 974         vec3_t dist, org;
 975         float d;
 976         entity_t *ent;
 977         float yaw, pitch;
 978         float forward;
 979         matrix4x4_t tempmatrix;
 980
 981         for (i = 0, b = cl_beams;i < cl_max_beams;i++, b++)
 982         {
 983                 if (!b->model || b->endtime < cl.time)
 984                         continue;
 985
 986                 // if coming from the player, update the start position
 987                 //if (b->entity == cl.viewentity)
 988                 //      VectorCopy (cl_entities[cl.viewentity].render.origin, b->start);
 989                 if (cl_beams_relative.integer && b->entity && cl_entities[b->entity].state_current.active && b->relativestartvalid)
 990                 {
 991                         entity_state_t *p = &cl_entities[b->entity].state_previous;
 992                         //entity_state_t *c = &cl_entities[b->entity].state_current;
 993                         entity_render_t *r = &cl_entities[b->entity].render;
 994                         matrix4x4_t matrix, imatrix;
 995                         if (b->relativestartvalid == 2)
 996                         {
 997                                 // not really valid yet, we need to get the orientation now
 998                                 // (ParseBeam flagged this because it is received before
 999                                 //  entities are received, by now they have been received)
1000                                 // note: because players create lightning in their think
1001                                 // function (which occurs before movement), they actually
1002                                 // have some lag in it's location, so compare to the
1003                                 // previous player state, not the latest
1004                                 if (b->entity == cl.viewentity)
1005                                         Matrix4x4_CreateFromQuakeEntity(&matrix, p->origin[0], p->origin[1], p->origin[2] + 16, cl.viewangles[0], cl.viewangles[1], cl.viewangles[2], 1);
1006                                 else
1007                                         Matrix4x4_CreateFromQuakeEntity(&matrix, p->origin[0], p->origin[1], p->origin[2] + 16, p->angles[0], p->angles[1], p->angles[2], 1);
1008                                 Matrix4x4_Invert_Simple(&imatrix, &matrix);
1009                                 Matrix4x4_Transform(&imatrix, b->start, b->relativestart);
1010                                 Matrix4x4_Transform(&imatrix, b->end, b->relativeend);
1011                                 b->relativestartvalid = 1;
1012                         }
1013                         else
1014                         {
1015                                 if (b->entity == cl.viewentity)
1016                                         Matrix4x4_CreateFromQuakeEntity(&matrix, r->origin[0], r->origin[1], r->origin[2] + 16, cl.viewangles[0], cl.viewangles[1], cl.viewangles[2], 1);
1017                                 else
1018                                         Matrix4x4_CreateFromQuakeEntity(&matrix, r->origin[0], r->origin[1], r->origin[2] + 16, r->angles[0], r->angles[1], r->angles[2], 1);
1019                                 Matrix4x4_Transform(&matrix, b->relativestart, b->start);
1020                                 Matrix4x4_Transform(&matrix, b->relativeend, b->end);
1021                         }
1022                 }
1023
1024                 if (b->lightning)
1025                 {
1026                         if (cl_beams_lightatend.integer)
1027                         {
1028                                 // FIXME: create a matrix from the beam start/end orientation
1029                                 Matrix4x4_CreateTranslate(&tempmatrix, b->end[0], b->end[1], b->end[2]);
1030                                 CL_AllocDlight (NULL, &tempmatrix, 200, 0.3, 0.7, 1, 0, 0, 0, 0, true, 1);
1031                         }
1032                         if (cl_beams_polygons.integer)
1033                                 continue;
1034                 }
1035
1036                 // calculate pitch and yaw
1037                 VectorSubtract (b->end, b->start, dist);
1038
1039                 if (dist[1] == 0 && dist[0] == 0)
1040                 {
1041                         yaw = 0;
1042                         if (dist[2] > 0)
1043                                 pitch = 90;
1044                         else
1045                                 pitch = 270;
1046                 }
1047                 else
1048                 {
1049                         yaw = (int) (atan2(dist[1], dist[0]) * 180 / M_PI);
1050                         if (yaw < 0)
1051                                 yaw += 360;
1052
1053                         forward = sqrt (dist[0]*dist[0] + dist[1]*dist[1]);
1054                         pitch = (int) (atan2(dist[2], forward) * 180 / M_PI);
1055                         if (pitch < 0)
1056                                 pitch += 360;
1057                 }
1058
1059                 // add new entities for the lightning
1060                 VectorCopy (b->start, org);
1061                 d = VectorNormalizeLength(dist);
1062                 while (d > 0)
1063                 {
1064                         ent = CL_NewTempEntity ();
1065                         if (!ent)
1066                                 return;
1067                         //VectorCopy (org, ent->render.origin);
1068                         ent->render.model = b->model;
1069                         ent->render.effects = EF_FULLBRIGHT;
1070                         //ent->render.angles[0] = pitch;
1071                         //ent->render.angles[1] = yaw;
1072                         //ent->render.angles[2] = rand()%360;
1073                         Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, org[0], org[1], org[2], -pitch, yaw, lhrandom(0, 360), 1);
1074                         Matrix4x4_Invert_Simple(&ent->render.inversematrix, &ent->render.matrix);
1075                         CL_BoundingBoxForEntity(&ent->render);
1076                         VectorMA(org, 30, dist, org);
1077                         d -= 30;
1078                 }
1079         }
1080 }
1081
1082 void CL_LerpPlayer(float frac)
1083 {
1084         int i;
1085         float d;
1086
1087         cl.viewzoom = cl.viewzoomold + frac * (cl.viewzoomnew - cl.viewzoomold);
1088
1089         for (i = 0;i < 3;i++)
1090                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
1091
1092         if (cls.demoplayback)
1093         {
1094                 // interpolate the angles
1095                 for (i = 0;i < 3;i++)
1096                 {
1097                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
1098                         if (d > 180)
1099                                 d -= 360;
1100                         else if (d < -180)
1101                                 d += 360;
1102                         cl.viewangles[i] = cl.mviewangles[1][i] + frac * d;
1103                 }
1104         }
1105 }
1106
1107 /*
1108 ===============
1109 CL_ReadFromServer
1110
1111 Read all incoming data from the server
1112 ===============
1113 */
1114 int CL_ReadFromServer(void)
1115 {
1116         CL_ReadDemoMessage();
1117
1118         r_refdef.numentities = 0;
1119         cl_num_entities = 0;
1120         cl_num_brushmodel_entities = 0;
1121
1122         if (cls.state == ca_connected && cls.signon == SIGNONS)
1123         {
1124                 // prepare for a new frame
1125                 CL_LerpPlayer(CL_LerpPoint());
1126                 CL_DecayLights();
1127                 CL_ClearTempEntities();
1128                 V_DriftPitch();
1129                 V_FadeViewFlashs();
1130
1131                 // relink network entities (note: this sets up the view!)
1132                 CL_RelinkNetworkEntities();
1133
1134                 // move particles
1135                 CL_MoveParticles();
1136                 R_MoveExplosions();
1137
1138                 // link stuff
1139                 CL_RelinkWorld();
1140                 CL_RelinkStaticEntities();
1141                 CL_RelinkBeams();
1142                 CL_RelinkEffects();
1143
1144                 // run cgame code (which can add more entities)
1145                 CL_CGVM_Frame();
1146
1147                 // update view blend
1148                 V_CalcViewBlend();
1149         }
1150
1151         return 0;
1152 }
1153
1154 /*
1155 =================
1156 CL_SendCmd
1157 =================
1158 */
1159 void CL_SendCmd(usercmd_t *cmd)
1160 {
1161         if (cls.signon == SIGNONS)
1162                 CL_SendMove(cmd);
1163
1164         if (cls.demoplayback)
1165         {
1166                 SZ_Clear(&cls.message);
1167                 return;
1168         }
1169
1170         // send the reliable message (forwarded commands) if there is one
1171         if (cls.message.cursize && NetConn_CanSendMessage(cls.netcon))
1172         {
1173                 if (developer.integer)
1174                 {
1175                         Con_Printf("CL_SendCmd: sending reliable message:\n");
1176                         SZ_HexDumpToConsole(&cls.message);
1177                 }
1178                 if (NetConn_SendReliableMessage(cls.netcon, &cls.message) == -1)
1179                         Host_Error("CL_WriteToServer: lost server connection");
1180                 SZ_Clear(&cls.message);
1181         }
1182 }
1183
1184 // LordHavoc: pausedemo command
1185 static void CL_PauseDemo_f (void)
1186 {
1187         cls.demopaused = !cls.demopaused;
1188         if (cls.demopaused)
1189                 Con_Printf("Demo paused\n");
1190         else
1191                 Con_Printf("Demo unpaused\n");
1192 }
1193
1194 /*
1195 ======================
1196 CL_Fog_f
1197 ======================
1198 */
1199 static void CL_Fog_f (void)
1200 {
1201         if (Cmd_Argc () == 1)
1202         {
1203                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
1204                 return;
1205         }
1206         fog_density = atof(Cmd_Argv(1));
1207         fog_red = atof(Cmd_Argv(2));
1208         fog_green = atof(Cmd_Argv(3));
1209         fog_blue = atof(Cmd_Argv(4));
1210 }
1211
1212 /*
1213 =================
1214 CL_Init
1215 =================
1216 */
1217 void CL_Init (void)
1218 {
1219         cl_entities_mempool = Mem_AllocPool("client entities");
1220         cl_refdef_mempool = Mem_AllocPool("refdef");
1221
1222         memset(&r_refdef, 0, sizeof(r_refdef));
1223         // max entities sent to renderer per frame
1224         r_refdef.maxentities = MAX_EDICTS + 256 + 512;
1225         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * r_refdef.maxentities);
1226         // 256k drawqueue buffer
1227         r_refdef.maxdrawqueuesize = 256 * 1024;
1228         r_refdef.drawqueue = Mem_Alloc(cl_refdef_mempool, r_refdef.maxdrawqueuesize);
1229
1230         SZ_Alloc (&cls.message, 1024, "cls.message");
1231
1232         CL_InitInput ();
1233         CL_InitTEnts ();
1234
1235 //
1236 // register our commands
1237 //
1238         Cvar_RegisterVariable (&cl_upspeed);
1239         Cvar_RegisterVariable (&cl_forwardspeed);
1240         Cvar_RegisterVariable (&cl_backspeed);
1241         Cvar_RegisterVariable (&cl_sidespeed);
1242         Cvar_RegisterVariable (&cl_movespeedkey);
1243         Cvar_RegisterVariable (&cl_yawspeed);
1244         Cvar_RegisterVariable (&cl_pitchspeed);
1245         Cvar_RegisterVariable (&cl_anglespeedkey);
1246         Cvar_RegisterVariable (&cl_shownet);
1247         Cvar_RegisterVariable (&cl_nolerp);
1248         Cvar_RegisterVariable (&lookspring);
1249         Cvar_RegisterVariable (&lookstrafe);
1250         Cvar_RegisterVariable (&sensitivity);
1251         Cvar_RegisterVariable (&freelook);
1252
1253         Cvar_RegisterVariable (&m_pitch);
1254         Cvar_RegisterVariable (&m_yaw);
1255         Cvar_RegisterVariable (&m_forward);
1256         Cvar_RegisterVariable (&m_side);
1257
1258         Cvar_RegisterVariable (&cl_itembobspeed);
1259         Cvar_RegisterVariable (&cl_itembobheight);
1260
1261         Cmd_AddCommand ("entities", CL_PrintEntities_f);
1262         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
1263         Cmd_AddCommand ("record", CL_Record_f);
1264         Cmd_AddCommand ("stop", CL_Stop_f);
1265         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
1266         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
1267
1268         Cmd_AddCommand ("fog", CL_Fog_f);
1269
1270         // LordHavoc: added pausedemo
1271         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
1272
1273         Cvar_RegisterVariable(&r_draweffects);
1274         Cvar_RegisterVariable(&cl_explosions);
1275         Cvar_RegisterVariable(&cl_stainmaps);
1276         Cvar_RegisterVariable(&cl_beams_polygons);
1277         Cvar_RegisterVariable(&cl_beams_relative);
1278         Cvar_RegisterVariable(&cl_beams_lightatend);
1279         Cvar_RegisterVariable(&cl_noplayershadow);
1280
1281         CL_Parse_Init();
1282         CL_Particles_Init();
1283         CL_Screen_Init();
1284         CL_CGVM_Init();
1285
1286         CL_Video_Init();
1287 }
1288