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
  26 // we need to declare some mouse variables here, because the menu system
  27 // references them even when on a unix system.
  28
  29 // these two are not intended to be set directly
  30 cvar_t cl_name = {CVAR_SAVE, "_cl_name", "player"};
  31 cvar_t cl_color = {CVAR_SAVE, "_cl_color", "0"};
  32 cvar_t cl_pmodel = {CVAR_SAVE, "_cl_pmodel", "0"};
  33
  34 cvar_t cl_shownet = {0, "cl_shownet","0"};
  35 cvar_t cl_nolerp = {0, "cl_nolerp", "0"};
  36
  37 cvar_t cl_itembobheight = {0, "cl_itembobheight", "8"};
  38 cvar_t cl_itembobspeed = {0, "cl_itembobspeed", "0.5"};
  39
  40 cvar_t lookspring = {CVAR_SAVE, "lookspring","0"};
  41 cvar_t lookstrafe = {CVAR_SAVE, "lookstrafe","0"};
  42 cvar_t sensitivity = {CVAR_SAVE, "sensitivity","3", 1, 30};
  43
  44 cvar_t m_pitch = {CVAR_SAVE, "m_pitch","0.022"};
  45 cvar_t m_yaw = {CVAR_SAVE, "m_yaw","0.022"};
  46 cvar_t m_forward = {CVAR_SAVE, "m_forward","1"};
  47 cvar_t m_side = {CVAR_SAVE, "m_side","0.8"};
  48
  49 cvar_t freelook = {CVAR_SAVE, "freelook", "1"};
  50
  51 cvar_t r_draweffects = {0, "r_draweffects", "1"};
  52
  53 cvar_t cl_explosions = {CVAR_SAVE, "cl_explosions", "1"};
  54 cvar_t cl_stainmaps = {CVAR_SAVE, "cl_stainmaps", "1"};
  55
  56 mempool_t *cl_scores_mempool;
  57 mempool_t *cl_refdef_mempool;
  58 mempool_t *cl_entities_mempool;
  59
  60 client_static_t cls;
  61 client_state_t  cl;
  62
  63 int cl_max_entities;
  64 int cl_max_static_entities;
  65 int cl_max_temp_entities;
  66 int cl_max_effects;
  67 int cl_max_beams;
  68 int cl_max_dlights;
  69 int cl_max_lightstyle;
  70 int cl_max_brushmodel_entities;
  71
  72 entity_t *cl_entities;
  73 qbyte *cl_entities_active;
  74 entity_t *cl_static_entities;
  75 entity_t *cl_temp_entities;
  76 cl_effect_t *cl_effects;
  77 beam_t *cl_beams;
  78 dlight_t *cl_dlights;
  79 lightstyle_t *cl_lightstyle;
  80 entity_render_t **cl_brushmodel_entities;
  81
  82 int cl_num_entities;
  83 int cl_num_static_entities;
  84 int cl_num_temp_entities;
  85 int cl_num_brushmodel_entities;
  86
  87 /*
  88 =====================
  89 CL_ClearState
  90
  91 =====================
  92 */
  93 void CL_ClearState (void)
  94 {
  95         int i;
  96
  97         if (!sv.active)
  98                 Host_ClearMemory ();
  99
 100         Mem_EmptyPool(cl_scores_mempool);
 101         Mem_EmptyPool(cl_entities_mempool);
 102
 103 // wipe the entire cl structure
 104         memset (&cl, 0, sizeof(cl));
 105
 106         SZ_Clear (&cls.message);
 107
 108         cl_num_entities = 0;
 109         cl_num_static_entities = 0;
 110         cl_num_temp_entities = 0;
 111         cl_num_brushmodel_entities = 0;
 112
 113         // tweak these if the game runs out
 114         cl_max_entities = MAX_EDICTS;
 115         cl_max_static_entities = 256;
 116         cl_max_temp_entities = 512;
 117         cl_max_effects = 256;
 118         cl_max_beams = 24;
 119         cl_max_dlights = MAX_DLIGHTS;
 120         cl_max_lightstyle = MAX_LIGHTSTYLES;
 121         cl_max_brushmodel_entities = MAX_EDICTS;
 122
 123         cl_entities = Mem_Alloc(cl_entities_mempool, cl_max_entities * sizeof(entity_t));
 124         cl_entities_active = Mem_Alloc(cl_entities_mempool, cl_max_entities * sizeof(qbyte));
 125         cl_static_entities = Mem_Alloc(cl_entities_mempool, cl_max_static_entities * sizeof(entity_t));
 126         cl_temp_entities = Mem_Alloc(cl_entities_mempool, cl_max_temp_entities * sizeof(entity_t));
 127         cl_effects = Mem_Alloc(cl_entities_mempool, cl_max_effects * sizeof(cl_effect_t));
 128         cl_beams = Mem_Alloc(cl_entities_mempool, cl_max_beams * sizeof(beam_t));
 129         cl_dlights = Mem_Alloc(cl_entities_mempool, cl_max_dlights * sizeof(dlight_t));
 130         cl_lightstyle = Mem_Alloc(cl_entities_mempool, cl_max_lightstyle * sizeof(lightstyle_t));
 131         cl_brushmodel_entities = Mem_Alloc(cl_entities_mempool, cl_max_brushmodel_entities * sizeof(entity_render_t *));
 132
 133         CL_Screen_NewMap();
 134
 135         CL_Particles_Clear();
 136
 137         // LordHavoc: have to set up the baseline info for alpha and other stuff
 138         for (i = 0;i < cl_max_entities;i++)
 139         {
 140                 ClearStateToDefault(&cl_entities[i].state_baseline);
 141                 ClearStateToDefault(&cl_entities[i].state_previous);
 142                 ClearStateToDefault(&cl_entities[i].state_current);
 143         }
 144
 145         CL_CGVM_Clear();
 146 }
 147
 148 /*
 149 =====================
 150 CL_Disconnect
 151
 152 Sends a disconnect message to the server
 153 This is also called on Host_Error, so it shouldn't cause any errors
 154 =====================
 155 */
 156 void CL_Disconnect (void)
 157 {
 158         if (cls.state == ca_dedicated)
 159                 return;
 160
 161 // stop sounds (especially looping!)
 162         S_StopAllSounds (true);
 163
 164         // clear contents blends
 165         cl.cshifts[0].percent = 0;
 166         cl.cshifts[1].percent = 0;
 167         cl.cshifts[2].percent = 0;
 168         cl.cshifts[3].percent = 0;
 169
 170         cl.worldmodel = NULL;
 171
 172         if (cls.demoplayback)
 173                 CL_StopPlayback ();
 174         else if (cls.state == ca_connected)
 175         {
 176                 if (cls.demorecording)
 177                         CL_Stop_f ();
 178
 179                 Con_DPrintf ("Sending clc_disconnect\n");
 180                 SZ_Clear (&cls.message);
 181                 MSG_WriteByte (&cls.message, clc_disconnect);
 182                 NET_SendUnreliableMessage (cls.netcon, &cls.message);
 183                 SZ_Clear (&cls.message);
 184                 NET_Close (cls.netcon);
 185                 cls.state = ca_disconnected; // prevent this code from executing again during Host_ShutdownServer
 186                 // if running a local server, shut it down
 187                 if (sv.active)
 188                         Host_ShutdownServer(false);
 189         }
 190         cls.state = ca_disconnected;
 191
 192         cls.demoplayback = cls.timedemo = false;
 193         cls.signon = 0;
 194 }
 195
 196 void CL_Disconnect_f (void)
 197 {
 198         CL_Disconnect ();
 199         if (sv.active)
 200                 Host_ShutdownServer (false);
 201 }
 202
 203
 204
 205
 206 /*
 207 =====================
 208 CL_EstablishConnection
 209
 210 Host should be either "local" or a net address to be passed on
 211 =====================
 212 */
 213 void CL_EstablishConnection (char *host)
 214 {
 215         if (cls.state == ca_dedicated)
 216                 return;
 217
 218         if (cls.demoplayback)
 219                 return;
 220
 221         CL_Disconnect ();
 222
 223         cls.netcon = NET_Connect (host);
 224         if (!cls.netcon)
 225                 Host_Error ("CL_Connect: connect failed\n");
 226         Con_DPrintf ("CL_EstablishConnection: connected to %s\n", host);
 227
 228         cls.demonum = -1;                       // not in the demo loop now
 229         cls.state = ca_connected;
 230         cls.signon = 0;                         // need all the signon messages before playing
 231
 232         CL_ClearState ();
 233 }
 234
 235 /*
 236 ==============
 237 CL_PrintEntities_f
 238 ==============
 239 */
 240 static void CL_PrintEntities_f (void)
 241 {
 242         entity_t *ent;
 243         int i, j;
 244         char name[32];
 245
 246         for (i = 0, ent = cl_entities;i < cl_num_entities;i++, ent++)
 247         {
 248                 if (!ent->state_current.active)
 249                         continue;
 250
 251                 if (ent->render.model)
 252                         strncpy(name, ent->render.model->name, 25);
 253                 else
 254                         strcpy(name, "--no model--");
 255                 name[25] = 0;
 256                 for (j = strlen(name);j < 25;j++)
 257                         name[j] = ' ';
 258                 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);
 259         }
 260 }
 261
 262 static const vec3_t nomodelmins = {-16, -16, -16};
 263 static const vec3_t nomodelmaxs = {16, 16, 16};
 264 void CL_BoundingBoxForEntity(entity_render_t *ent)
 265 {
 266         if (ent->model)
 267         {
 268                 if (ent->angles[0] || ent->angles[2])
 269                 {
 270                         // pitch or roll
 271                         VectorAdd(ent->origin, ent->model->rotatedmins, ent->mins);
 272                         VectorAdd(ent->origin, ent->model->rotatedmaxs, ent->maxs);
 273                 }
 274                 else if (ent->angles[1])
 275                 {
 276                         // yaw
 277                         VectorAdd(ent->origin, ent->model->yawmins, ent->mins);
 278                         VectorAdd(ent->origin, ent->model->yawmaxs, ent->maxs);
 279                 }
 280                 else
 281                 {
 282                         VectorAdd(ent->origin, ent->model->normalmins, ent->mins);
 283                         VectorAdd(ent->origin, ent->model->normalmaxs, ent->maxs);
 284                 }
 285         }
 286         else
 287         {
 288                 VectorAdd(ent->origin, nomodelmins, ent->mins);
 289                 VectorAdd(ent->origin, nomodelmaxs, ent->maxs);
 290         }
 291 }
 292
 293 void CL_LerpUpdate(entity_t *e)
 294 {
 295         entity_persistent_t *p;
 296         entity_render_t *r;
 297         p = &e->persistent;
 298         r = &e->render;
 299
 300         if (p->modelindex != e->state_current.modelindex)
 301         {
 302                 // reset all interpolation information
 303                 p->modelindex = e->state_current.modelindex;
 304                 p->frame1 = p->frame2 = e->state_current.frame;
 305                 p->frame1time = p->frame2time = cl.time;
 306                 p->framelerp = 1;
 307         }
 308         else if (p->frame2 != e->state_current.frame)
 309         {
 310                 // transition to new frame
 311                 p->frame1 = p->frame2;
 312                 p->frame1time = p->frame2time;
 313                 p->frame2 = e->state_current.frame;
 314                 p->frame2time = cl.time;
 315                 p->framelerp = 0;
 316         }
 317         else
 318         {
 319                 // update transition
 320                 p->framelerp = (cl.time - p->frame2time) * 10;
 321                 p->framelerp = bound(0, p->framelerp, 1);
 322         }
 323
 324         r->model = cl.model_precache[e->state_current.modelindex];
 325         Mod_CheckLoaded(r->model);
 326         r->frame = e->state_current.frame;
 327         r->frame1 = p->frame1;
 328         r->frame2 = p->frame2;
 329         r->framelerp = p->framelerp;
 330         r->frame1time = p->frame1time;
 331         r->frame2time = p->frame2time;
 332 }
 333
 334 /*
 335 ===============
 336 CL_LerpPoint
 337
 338 Determines the fraction between the last two messages that the objects
 339 should be put at.
 340 ===============
 341 */
 342 static float CL_LerpPoint (void)
 343 {
 344         float f;
 345
 346         // dropped packet, or start of demo
 347         if (cl.mtime[1] < cl.mtime[0] - 0.1)
 348                 cl.mtime[1] = cl.mtime[0] - 0.1;
 349
 350         cl.time = bound(cl.mtime[1], cl.time, cl.mtime[0]);
 351
 352         // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
 353         f = cl.mtime[0] - cl.mtime[1];
 354         if (!f || cl_nolerp.integer || cls.timedemo || (sv.active && svs.maxclients == 1))
 355         {
 356                 cl.time = cl.mtime[0];
 357                 return 1;
 358         }
 359
 360         f = (cl.time - cl.mtime[1]) / f;
 361         return bound(0, f, 1);
 362 }
 363
 364 void CL_ClearTempEntities (void)
 365 {
 366         cl_num_temp_entities = 0;
 367 }
 368
 369 entity_t *CL_NewTempEntity (void)
 370 {
 371         entity_t *ent;
 372
 373         if (r_refdef.numentities >= r_refdef.maxentities)
 374                 return NULL;
 375         if (cl_num_temp_entities >= cl_max_temp_entities)
 376                 return NULL;
 377         ent = &cl_temp_entities[cl_num_temp_entities++];
 378         memset (ent, 0, sizeof(*ent));
 379         r_refdef.entities[r_refdef.numentities++] = &ent->render;
 380
 381         ent->render.colormap = -1; // no special coloring
 382         ent->render.scale = 1;
 383         ent->render.alpha = 1;
 384         return ent;
 385 }
 386
 387 void CL_AllocDlight (entity_render_t *ent, vec3_t org, float radius, float red, float green, float blue, float decay, float lifetime)
 388 {
 389         int i;
 390         dlight_t *dl;
 391
 392         /*
 393 // first look for an exact key match
 394         if (ent)
 395         {
 396                 dl = cl_dlights;
 397                 for (i = 0;i < MAX_DLIGHTS;i++, dl++)
 398                         if (dl->ent == ent)
 399                                 goto dlightsetup;
 400         }
 401         */
 402
 403 // then look for anything else
 404         dl = cl_dlights;
 405         for (i = 0;i < MAX_DLIGHTS;i++, dl++)
 406                 if (!dl->radius)
 407                         goto dlightsetup;
 408
 409         // unable to find one
 410         return;
 411
 412 dlightsetup:
 413         //Con_Printf("dlight %i : %f %f %f : %f %f %f\n", i, org[0], org[1], org[2], red * radius, green * radius, blue * radius);
 414         memset (dl, 0, sizeof(*dl));
 415         dl->ent = ent;
 416         VectorCopy(org, dl->origin);
 417         dl->radius = radius;
 418         dl->color[0] = red;
 419         dl->color[1] = green;
 420         dl->color[2] = blue;
 421         dl->decay = decay;
 422         if (lifetime)
 423                 dl->die = cl.time + lifetime;
 424         else
 425                 dl->die = 0;
 426 }
 427
 428 void CL_DecayLights (void)
 429 {
 430         int i;
 431         dlight_t *dl;
 432         float time;
 433
 434         time = cl.time - cl.oldtime;
 435
 436         dl = cl_dlights;
 437         for (i=0 ; i<MAX_DLIGHTS ; i++, dl++)
 438         {
 439                 if (!dl->radius)
 440                         continue;
 441                 if (dl->die < cl.time)
 442                 {
 443                         dl->radius = 0;
 444                         continue;
 445                 }
 446
 447                 dl->radius -= time*dl->decay;
 448                 if (dl->radius < 0)
 449                         dl->radius = 0;
 450         }
 451 }
 452
 453 void CL_RelinkWorld (void)
 454 {
 455         if (cl_num_entities < 1)
 456                 cl_num_entities = 1;
 457         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &cl_entities[0].render;
 458         CL_BoundingBoxForEntity(&cl_entities[0].render);
 459 }
 460
 461 static void CL_RelinkStaticEntities(void)
 462 {
 463         int i;
 464         for (i = 0;i < cl_num_static_entities && r_refdef.numentities < r_refdef.maxentities;i++)
 465         {
 466                 Mod_CheckLoaded(cl_static_entities[i].render.model);
 467                 r_refdef.entities[r_refdef.numentities++] = &cl_static_entities[i].render;
 468         }
 469 }
 470
 471 /*
 472 ===============
 473 CL_RelinkEntities
 474 ===============
 475 */
 476 static void CL_RelinkNetworkEntities()
 477 {
 478         entity_t *ent;
 479         int i, effects, temp;
 480         float d, bobjrotate, bobjoffset, lerp;
 481         vec3_t oldorg, neworg, delta, dlightcolor, v, v2, mins, maxs;
 482
 483         bobjrotate = ANGLEMOD(100*cl.time);
 484         if (cl_itembobheight.value)
 485                 bobjoffset = (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
 486         else
 487                 bobjoffset = 0;
 488
 489         // start on the entity after the world
 490         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS;i++, ent++)
 491         {
 492                 // if the object isn't active in the current network frame, skip it
 493                 if (!cl_entities_active[i])
 494                         continue;
 495                 if (!ent->state_current.active)
 496                 {
 497                         cl_entities_active[i] = false;
 498                         continue;
 499                 }
 500
 501                 VectorCopy(ent->persistent.trail_origin, oldorg);
 502
 503                 if (!ent->state_previous.active)
 504                 {
 505                         // only one state available
 506                         VectorCopy (ent->persistent.neworigin, neworg);
 507                         VectorCopy (ent->persistent.newangles, ent->render.angles);
 508                         VectorCopy (neworg, oldorg);
 509                 }
 510                 else
 511                 {
 512                         // if the delta is large, assume a teleport and don't lerp
 513                         VectorSubtract(ent->persistent.neworigin, ent->persistent.oldorigin, delta);
 514                         if (ent->persistent.lerpdeltatime > 0)
 515                         {
 516                                 lerp = (cl.time - ent->persistent.lerpstarttime) / ent->persistent.lerpdeltatime;
 517                                 if (lerp < 1)
 518                                 {
 519                                         // interpolate the origin and angles
 520                                         VectorMA(ent->persistent.oldorigin, lerp, delta, neworg);
 521                                         VectorSubtract(ent->persistent.newangles, ent->persistent.oldangles, delta);
 522                                         if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 523                                         if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 524                                         if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 525                                         VectorMA(ent->persistent.oldangles, lerp, delta, ent->render.angles);
 526                                 }
 527                                 else
 528                                 {
 529                                         // no interpolation
 530                                         VectorCopy (ent->persistent.neworigin, neworg);
 531                                         VectorCopy (ent->persistent.newangles, ent->render.angles);
 532                                 }
 533                         }
 534                         else
 535                         {
 536                                 // no interpolation
 537                                 VectorCopy (ent->persistent.neworigin, neworg);
 538                                 VectorCopy (ent->persistent.newangles, ent->render.angles);
 539                         }
 540                 }
 541
 542                 VectorCopy (neworg, ent->persistent.trail_origin);
 543                 // persistent.modelindex will be updated by CL_LerpUpdate
 544                 if (ent->state_current.modelindex != ent->persistent.modelindex)
 545                         VectorCopy(neworg, oldorg);
 546
 547                 VectorCopy (neworg, ent->render.origin);
 548                 ent->render.flags = ent->state_current.flags;
 549                 if (i == cl.viewentity)
 550                         ent->render.flags |= RENDER_EXTERIORMODEL;
 551                 ent->render.effects = effects = ent->state_current.effects;
 552                 if (ent->state_current.flags & RENDER_COLORMAPPED)
 553                         ent->render.colormap = ent->state_current.colormap;
 554                 else if (cl.scores == NULL || !ent->state_current.colormap)
 555                         ent->render.colormap = -1; // no special coloring
 556                 else
 557                         ent->render.colormap = cl.scores[ent->state_current.colormap - 1].colors; // color it
 558                 ent->render.skinnum = ent->state_current.skin;
 559                 ent->render.alpha = ent->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
 560                 ent->render.scale = ent->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
 561
 562                 // update interpolation info
 563                 CL_LerpUpdate(ent);
 564
 565                 // handle effects now...
 566                 dlightcolor[0] = 0;
 567                 dlightcolor[1] = 0;
 568                 dlightcolor[2] = 0;
 569
 570                 // LordHavoc: if the entity has no effects, don't check each
 571                 if (effects)
 572                 {
 573                         if (effects & EF_BRIGHTFIELD)
 574                                 CL_EntityParticles (ent);
 575                         if (effects & EF_MUZZLEFLASH)
 576                                 ent->persistent.muzzleflash = 100.0f;
 577                         if (effects & EF_DIMLIGHT)
 578                         {
 579                                 dlightcolor[0] += 200.0f;
 580                                 dlightcolor[1] += 200.0f;
 581                                 dlightcolor[2] += 200.0f;
 582                         }
 583                         if (effects & EF_BRIGHTLIGHT)
 584                         {
 585                                 dlightcolor[0] += 400.0f;
 586                                 dlightcolor[1] += 400.0f;
 587                                 dlightcolor[2] += 400.0f;
 588                         }
 589                         // LordHavoc: added EF_RED and EF_BLUE
 590                         if (effects & EF_RED) // red
 591                         {
 592                                 dlightcolor[0] += 200.0f;
 593                                 dlightcolor[1] +=  20.0f;
 594                                 dlightcolor[2] +=  20.0f;
 595                         }
 596                         if (effects & EF_BLUE) // blue
 597                         {
 598                                 dlightcolor[0] +=  20.0f;
 599                                 dlightcolor[1] +=  20.0f;
 600                                 dlightcolor[2] += 200.0f;
 601                         }
 602                         if (effects & EF_FLAME)
 603                         {
 604                                 if (ent->render.model)
 605                                 {
 606                                         mins[0] = neworg[0] - 16.0f;
 607                                         mins[1] = neworg[1] - 16.0f;
 608                                         mins[2] = neworg[2] - 16.0f;
 609                                         maxs[0] = neworg[0] + 16.0f;
 610                                         maxs[1] = neworg[1] + 16.0f;
 611                                         maxs[2] = neworg[2] + 16.0f;
 612                                         // how many flames to make
 613                                         temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
 614                                         CL_FlameCube(mins, maxs, temp);
 615                                 }
 616                                 d = lhrandom(200, 250);
 617                                 dlightcolor[0] += d * 1.0f;
 618                                 dlightcolor[1] += d * 0.7f;
 619                                 dlightcolor[2] += d * 0.3f;
 620                         }
 621                         if (effects & EF_STARDUST)
 622                         {
 623                                 if (ent->render.model)
 624                                 {
 625                                         mins[0] = neworg[0] - 16.0f;
 626                                         mins[1] = neworg[1] - 16.0f;
 627                                         mins[2] = neworg[2] - 16.0f;
 628                                         maxs[0] = neworg[0] + 16.0f;
 629                                         maxs[1] = neworg[1] + 16.0f;
 630                                         maxs[2] = neworg[2] + 16.0f;
 631                                         // how many particles to make
 632                                         temp = (int) (cl.time * 200) - (int) (cl.oldtime * 200);
 633                                         CL_Stardust(mins, maxs, temp);
 634                                 }
 635                                 d = 100;
 636                                 dlightcolor[0] += d * 1.0f;
 637                                 dlightcolor[1] += d * 0.7f;
 638                                 dlightcolor[2] += d * 0.3f;
 639                         }
 640                 }
 641
 642                 if (ent->persistent.muzzleflash > 0)
 643                 {
 644                         AngleVectors (ent->render.angles, v, NULL, NULL);
 645
 646                         v2[0] = v[0] * 18 + neworg[0];
 647                         v2[1] = v[1] * 18 + neworg[1];
 648                         v2[2] = v[2] * 18 + neworg[2] + 16;
 649                         CL_TraceLine(neworg, v2, v, NULL, 0, true, NULL);
 650
 651                         CL_AllocDlight (NULL, v, ent->persistent.muzzleflash, 1, 1, 1, 0, 0);
 652                         ent->persistent.muzzleflash -= cl.frametime * 1000;
 653                 }
 654
 655                 // LordHavoc: if the model has no flags, don't check each
 656                 if (ent->render.model && ent->render.model->flags)
 657                 {
 658                         if (ent->render.model->flags & EF_ROTATE)
 659                         {
 660                                 ent->render.angles[1] = bobjrotate;
 661                                 ent->render.origin[2] += bobjoffset;
 662                         }
 663                         // only do trails if present in the previous frame as well
 664                         if (ent->state_previous.active)
 665                         {
 666                                 if (ent->render.model->flags & EF_GIB)
 667                                         CL_RocketTrail (oldorg, neworg, 2, ent);
 668                                 else if (ent->render.model->flags & EF_ZOMGIB)
 669                                         CL_RocketTrail (oldorg, neworg, 4, ent);
 670                                 else if (ent->render.model->flags & EF_TRACER)
 671                                 {
 672                                         CL_RocketTrail (oldorg, neworg, 3, ent);
 673                                         dlightcolor[0] += 0x10;
 674                                         dlightcolor[1] += 0x40;
 675                                         dlightcolor[2] += 0x10;
 676                                 }
 677                                 else if (ent->render.model->flags & EF_TRACER2)
 678                                 {
 679                                         CL_RocketTrail (oldorg, neworg, 5, ent);
 680                                         dlightcolor[0] += 0x50;
 681                                         dlightcolor[1] += 0x30;
 682                                         dlightcolor[2] += 0x10;
 683                                 }
 684                                 else if (ent->render.model->flags & EF_ROCKET)
 685                                 {
 686                                         CL_RocketTrail (oldorg, ent->render.origin, 0, ent);
 687                                         dlightcolor[0] += 200.0f;
 688                                         dlightcolor[1] += 160.0f;
 689                                         dlightcolor[2] +=  80.0f;
 690                                 }
 691                                 else if (ent->render.model->flags & EF_GRENADE)
 692                                 {
 693                                         if (ent->render.alpha == -1) // LordHavoc: Nehahra dem compatibility (cigar smoke)
 694                                                 CL_RocketTrail (oldorg, neworg, 7, ent);
 695                                         else
 696                                                 CL_RocketTrail (oldorg, neworg, 1, ent);
 697                                 }
 698                                 else if (ent->render.model->flags & EF_TRACER3)
 699                                 {
 700                                         CL_RocketTrail (oldorg, neworg, 6, ent);
 701                                         dlightcolor[0] += 0x50;
 702                                         dlightcolor[1] += 0x20;
 703                                         dlightcolor[2] += 0x40;
 704                                 }
 705                         }
 706                 }
 707                 // LordHavoc: customizable glow
 708                 if (ent->state_current.glowsize)
 709                 {
 710                         // * 4 for the expansion from 0-255 to 0-1023 range,
 711                         // / 255 to scale down byte colors
 712                         VectorMA(dlightcolor, ent->state_current.glowsize * (4.0f / 255.0f), (qbyte *)&palette_complete[ent->state_current.glowcolor], dlightcolor);
 713                 }
 714                 // LordHavoc: customizable trail
 715                 if (ent->render.flags & RENDER_GLOWTRAIL)
 716                         CL_RocketTrail2 (oldorg, neworg, ent->state_current.glowcolor, ent);
 717
 718                 if (dlightcolor[0] || dlightcolor[1] || dlightcolor[2])
 719                 {
 720                         VectorCopy(neworg, v);
 721                         // hack to make glowing player light shine on their gun
 722                         if (i == cl.viewentity/* && !chase_active.integer*/)
 723                                 v[2] += 30;
 724                         CL_AllocDlight (&ent->render, v, 1, dlightcolor[0], dlightcolor[1], dlightcolor[2], 0, 0);
 725                 }
 726
 727                 if (chase_active.integer && (ent->render.flags & RENDER_VIEWMODEL))
 728                         continue;
 729
 730                 // don't show entities with no modelindex (note: this still shows
 731                 // entities which have a modelindex that resolved to a NULL model)
 732                 if (!ent->state_current.modelindex)
 733                         continue;
 734                 if (effects & EF_NODRAW)
 735                         continue;
 736
 737                 CL_BoundingBoxForEntity(&ent->render);
 738                 if (ent->render.model && ent->render.model->name[0] == '*' && ent->render.model->type == mod_brush)
 739                         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &ent->render;
 740
 741                 if (r_refdef.numentities < r_refdef.maxentities)
 742                         r_refdef.entities[r_refdef.numentities++] = &ent->render;
 743
 744                 if (cl_num_entities < i + 1)
 745                         cl_num_entities = i + 1;
 746         }
 747 }
 748
 749 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
 750 {
 751         int i;
 752         cl_effect_t *e;
 753         if (!modelindex) // sanity check
 754                 return;
 755         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
 756         {
 757                 if (e->active)
 758                         continue;
 759                 e->active = true;
 760                 VectorCopy(org, e->origin);
 761                 e->modelindex = modelindex;
 762                 e->starttime = cl.time;
 763                 e->startframe = startframe;
 764                 e->endframe = startframe + framecount;
 765                 e->framerate = framerate;
 766
 767                 e->frame = 0;
 768                 e->frame1time = cl.time;
 769                 e->frame2time = cl.time;
 770                 break;
 771         }
 772 }
 773
 774 static void CL_RelinkEffects()
 775 {
 776         int i, intframe;
 777         cl_effect_t *e;
 778         entity_t *ent;
 779         float frame;
 780
 781         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
 782         {
 783                 if (e->active)
 784                 {
 785                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
 786                         intframe = frame;
 787                         if (intframe < 0 || intframe >= e->endframe)
 788                         {
 789                                 e->active = false;
 790                                 memset(e, 0, sizeof(*e));
 791                                 continue;
 792                         }
 793
 794                         if (intframe != e->frame)
 795                         {
 796                                 e->frame = intframe;
 797                                 e->frame1time = e->frame2time;
 798                                 e->frame2time = cl.time;
 799                         }
 800
 801                         // if we're drawing effects, get a new temp entity
 802                         // (NewTempEntity adds it to the render entities list for us)
 803                         if (r_draweffects.integer && (ent = CL_NewTempEntity()))
 804                         {
 805                                 // interpolation stuff
 806                                 ent->render.frame1 = intframe;
 807                                 ent->render.frame2 = intframe + 1;
 808                                 if (ent->render.frame2 >= e->endframe)
 809                                         ent->render.frame2 = -1; // disappear
 810                                 ent->render.framelerp = frame - intframe;
 811                                 ent->render.frame1time = e->frame1time;
 812                                 ent->render.frame2time = e->frame2time;
 813
 814                                 // normal stuff
 815                                 VectorCopy(e->origin, ent->render.origin);
 816                                 ent->render.model = cl.model_precache[e->modelindex];
 817                                 ent->render.frame = ent->render.frame2;
 818                                 ent->render.colormap = -1; // no special coloring
 819                                 ent->render.scale = 1;
 820                                 ent->render.alpha = 1;
 821
 822                                 CL_BoundingBoxForEntity(&ent->render);
 823                         }
 824                 }
 825         }
 826 }
 827
 828 void CL_RelinkBeams (void)
 829 {
 830         int i;
 831         beam_t *b;
 832         vec3_t dist, org;
 833         float d;
 834         entity_t *ent;
 835         float yaw, pitch;
 836         float forward;
 837
 838         for (i = 0, b = cl_beams;i < cl_max_beams;i++, b++)
 839         {
 840                 if (!b->model || b->endtime < cl.time)
 841                         continue;
 842
 843                 // if coming from the player, update the start position
 844                 //if (b->entity == cl.viewentity)
 845                 //      VectorCopy (cl_entities[cl.viewentity].render.origin, b->start);
 846                 if (b->entity && cl_entities[b->entity].state_current.active)
 847                 {
 848                         VectorCopy (cl_entities[b->entity].render.origin, b->start);
 849                         b->start[2] += 16;
 850                 }
 851
 852                 // calculate pitch and yaw
 853                 VectorSubtract (b->end, b->start, dist);
 854
 855                 if (dist[1] == 0 && dist[0] == 0)
 856                 {
 857                         yaw = 0;
 858                         if (dist[2] > 0)
 859                                 pitch = 90;
 860                         else
 861                                 pitch = 270;
 862                 }
 863                 else
 864                 {
 865                         yaw = (int) (atan2(dist[1], dist[0]) * 180 / M_PI);
 866                         if (yaw < 0)
 867                                 yaw += 360;
 868
 869                         forward = sqrt (dist[0]*dist[0] + dist[1]*dist[1]);
 870                         pitch = (int) (atan2(dist[2], forward) * 180 / M_PI);
 871                         if (pitch < 0)
 872                                 pitch += 360;
 873                 }
 874
 875                 // add new entities for the lightning
 876                 VectorCopy (b->start, org);
 877                 d = VectorNormalizeLength(dist);
 878                 while (d > 0)
 879                 {
 880                         ent = CL_NewTempEntity ();
 881                         if (!ent)
 882                                 return;
 883                         VectorCopy (org, ent->render.origin);
 884                         ent->render.model = b->model;
 885                         ent->render.effects = EF_FULLBRIGHT;
 886                         ent->render.angles[0] = pitch;
 887                         ent->render.angles[1] = yaw;
 888                         ent->render.angles[2] = rand()%360;
 889                         CL_BoundingBoxForEntity(&ent->render);
 890                         VectorMA(org, 30, dist, org);
 891                         d -= 30;
 892                 }
 893         }
 894 }
 895
 896 void CL_LerpPlayer(float frac)
 897 {
 898         int i;
 899         float d;
 900
 901         if (cl.entitydatabase.numframes && cl.viewentity == cl.playerentity)
 902         {
 903                 cl.viewentorigin[0] = cl.viewentoriginold[0] + frac * (cl.viewentoriginnew[0] - cl.viewentoriginold[0]);
 904                 cl.viewentorigin[1] = cl.viewentoriginold[1] + frac * (cl.viewentoriginnew[1] - cl.viewentoriginold[1]);
 905                 cl.viewentorigin[2] = cl.viewentoriginold[2] + frac * (cl.viewentoriginnew[2] - cl.viewentoriginold[2]);
 906         }
 907         else
 908                 VectorCopy (cl_entities[cl.viewentity].render.origin, cl.viewentorigin);
 909
 910         cl.viewzoom = cl.viewzoomold + frac * (cl.viewzoomnew - cl.viewzoomold);
 911
 912         for (i = 0;i < 3;i++)
 913                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
 914
 915         if (cls.demoplayback)
 916         {
 917                 // interpolate the angles
 918                 for (i = 0;i < 3;i++)
 919                 {
 920                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
 921                         if (d > 180)
 922                                 d -= 360;
 923                         else if (d < -180)
 924                                 d += 360;
 925                         cl.viewangles[i] = cl.mviewangles[1][i] + frac * d;
 926                 }
 927         }
 928 }
 929
 930 void CL_RelinkEntities (void)
 931 {
 932         float frac;
 933
 934         // fraction from previous network update to current
 935         frac = CL_LerpPoint();
 936
 937         CL_ClearTempEntities();
 938         CL_DecayLights();
 939         CL_RelinkWorld();
 940         CL_RelinkStaticEntities();
 941         CL_RelinkNetworkEntities();
 942         CL_RelinkEffects();
 943         CL_RelinkBeams();
 944         CL_MoveParticles();
 945
 946         CL_LerpPlayer(frac);
 947 }
 948
 949
 950 /*
 951 ===============
 952 CL_ReadFromServer
 953
 954 Read all incoming data from the server
 955 ===============
 956 */
 957 int CL_ReadFromServer (void)
 958 {
 959         int ret, netshown;
 960
 961         cl.oldtime = cl.time;
 962         cl.time += cl.frametime;
 963
 964         netshown = false;
 965         do
 966         {
 967                 ret = CL_GetMessage ();
 968                 if (ret == -1)
 969                         Host_Error ("CL_ReadFromServer: lost server connection");
 970                 if (!ret)
 971                         break;
 972
 973                 cl.last_received_message = realtime;
 974
 975                 if (cl_shownet.integer)
 976                         netshown = true;
 977
 978                 CL_ParseServerMessage ();
 979         }
 980         while (ret && cls.state == ca_connected);
 981
 982         if (netshown)
 983                 Con_Printf ("\n");
 984
 985         r_refdef.numentities = 0;
 986         cl_num_entities = 0;
 987         cl_num_brushmodel_entities = 0;
 988
 989         if (cls.state == ca_connected && cls.signon == SIGNONS)
 990         {
 991                 CL_RelinkEntities ();
 992
 993                 // run cgame code (which can add more entities)
 994                 CL_CGVM_Frame();
 995         }
 996
 997 //
 998 // bring the links up to date
 999 //
1000         return 0;
1001 }
1002
1003 /*
1004 =================
1005 CL_SendCmd
1006 =================
1007 */
1008 void CL_SendCmd (void)
1009 {
1010         usercmd_t               cmd;
1011
1012         if (cls.state != ca_connected)
1013                 return;
1014
1015         if (cls.signon == SIGNONS)
1016         {
1017         // get basic movement from keyboard
1018                 CL_BaseMove (&cmd);
1019
1020                 IN_PreMove(); // OS independent code
1021
1022         // allow mice or other external controllers to add to the move
1023                 IN_Move (&cmd);
1024
1025                 IN_PostMove(); // OS independent code
1026
1027         // send the unreliable message
1028                 CL_SendMove (&cmd);
1029         }
1030 #ifndef NOROUTINGFIX
1031         else if (cls.signon == 0 && !cls.demoplayback)
1032         {
1033                 // LordHavoc: fix for NAT routing of netquake:
1034                 // bounce back a clc_nop message to the newly allocated server port,
1035                 // to establish a routing connection for incoming frames,
1036                 // the server waits for this before sending anything
1037                 if (realtime > cl.sendnoptime)
1038                 {
1039                         cl.sendnoptime = realtime + 3;
1040                         Con_DPrintf("sending clc_nop to get server's attention\n");
1041                         {
1042                                 sizebuf_t buf;
1043                                 qbyte data[128];
1044                                 buf.maxsize = 128;
1045                                 buf.cursize = 0;
1046                                 buf.data = data;
1047                                 MSG_WriteByte(&buf, clc_nop);
1048                                 if (NET_SendUnreliableMessage (cls.netcon, &buf) == -1)
1049                                 {
1050                                         Con_Printf ("CL_SendCmd: lost server connection\n");
1051                                         CL_Disconnect ();
1052                                 }
1053                         }
1054                 }
1055         }
1056 #endif
1057
1058         if (cls.demoplayback)
1059         {
1060                 SZ_Clear (&cls.message);
1061                 return;
1062         }
1063
1064 // send the reliable message
1065         if (!cls.message.cursize)
1066                 return;         // no message at all
1067
1068         if (!NET_CanSendMessage (cls.netcon))
1069         {
1070                 Con_DPrintf ("CL_WriteToServer: can't send\n");
1071                 if (developer.integer)
1072                         SZ_HexDumpToConsole(&cls.message);
1073                 return;
1074         }
1075
1076         if (NET_SendMessage (cls.netcon, &cls.message) == -1)
1077                 Host_Error ("CL_WriteToServer: lost server connection");
1078
1079         SZ_Clear (&cls.message);
1080 }
1081
1082 // LordHavoc: pausedemo command
1083 static void CL_PauseDemo_f (void)
1084 {
1085         cls.demopaused = !cls.demopaused;
1086         if (cls.demopaused)
1087                 Con_Printf("Demo paused\n");
1088         else
1089                 Con_Printf("Demo unpaused\n");
1090 }
1091
1092 /*
1093 ======================
1094 CL_PModel_f
1095 LordHavoc: Intended for Nehahra, I personally think this is dumb, but Mindcrime won't listen.
1096 ======================
1097 */
1098 static void CL_PModel_f (void)
1099 {
1100         int i;
1101         eval_t *val;
1102
1103         if (Cmd_Argc () == 1)
1104         {
1105                 Con_Printf ("\"pmodel\" is \"%s\"\n", cl_pmodel.string);
1106                 return;
1107         }
1108         i = atoi(Cmd_Argv(1));
1109
1110         if (cmd_source == src_command)
1111         {
1112                 if (cl_pmodel.integer == i)
1113                         return;
1114                 Cvar_SetValue ("_cl_pmodel", i);
1115                 if (cls.state == ca_connected)
1116                         Cmd_ForwardToServer ();
1117                 return;
1118         }
1119
1120         host_client->pmodel = i;
1121         if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_pmodel)))
1122                 val->_float = i;
1123 }
1124
1125 /*
1126 ======================
1127 CL_Fog_f
1128 ======================
1129 */
1130 static void CL_Fog_f (void)
1131 {
1132         if (Cmd_Argc () == 1)
1133         {
1134                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
1135                 return;
1136         }
1137         fog_density = atof(Cmd_Argv(1));
1138         fog_red = atof(Cmd_Argv(2));
1139         fog_green = atof(Cmd_Argv(3));
1140         fog_blue = atof(Cmd_Argv(4));
1141 }
1142
1143 /*
1144 =================
1145 CL_Init
1146 =================
1147 */
1148 void CL_Init (void)
1149 {
1150         cl_scores_mempool = Mem_AllocPool("client player info");
1151         cl_entities_mempool = Mem_AllocPool("client entities");
1152         cl_refdef_mempool = Mem_AllocPool("refdef");
1153
1154         memset(&r_refdef, 0, sizeof(r_refdef));
1155         // max entities sent to renderer per frame
1156         r_refdef.maxentities = MAX_EDICTS + 256 + 512;
1157         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * r_refdef.maxentities);
1158         // 256k drawqueue buffer
1159         r_refdef.maxdrawqueuesize = 256 * 1024;
1160         r_refdef.drawqueue = Mem_Alloc(cl_refdef_mempool, r_refdef.maxdrawqueuesize);
1161
1162         SZ_Alloc (&cls.message, 1024, "cls.message");
1163
1164         CL_InitInput ();
1165         CL_InitTEnts ();
1166
1167 //
1168 // register our commands
1169 //
1170         Cvar_RegisterVariable (&cl_name);
1171         Cvar_RegisterVariable (&cl_color);
1172         if (gamemode == GAME_NEHAHRA)
1173                 Cvar_RegisterVariable (&cl_pmodel);
1174         Cvar_RegisterVariable (&cl_upspeed);
1175         Cvar_RegisterVariable (&cl_forwardspeed);
1176         Cvar_RegisterVariable (&cl_backspeed);
1177         Cvar_RegisterVariable (&cl_sidespeed);
1178         Cvar_RegisterVariable (&cl_movespeedkey);
1179         Cvar_RegisterVariable (&cl_yawspeed);
1180         Cvar_RegisterVariable (&cl_pitchspeed);
1181         Cvar_RegisterVariable (&cl_anglespeedkey);
1182         Cvar_RegisterVariable (&cl_shownet);
1183         Cvar_RegisterVariable (&cl_nolerp);
1184         Cvar_RegisterVariable (&lookspring);
1185         Cvar_RegisterVariable (&lookstrafe);
1186         Cvar_RegisterVariable (&sensitivity);
1187         Cvar_RegisterVariable (&freelook);
1188
1189         Cvar_RegisterVariable (&m_pitch);
1190         Cvar_RegisterVariable (&m_yaw);
1191         Cvar_RegisterVariable (&m_forward);
1192         Cvar_RegisterVariable (&m_side);
1193
1194         Cvar_RegisterVariable (&cl_itembobspeed);
1195         Cvar_RegisterVariable (&cl_itembobheight);
1196
1197         Cmd_AddCommand ("entities", CL_PrintEntities_f);
1198         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
1199         Cmd_AddCommand ("record", CL_Record_f);
1200         Cmd_AddCommand ("stop", CL_Stop_f);
1201         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
1202         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
1203
1204         Cmd_AddCommand ("fog", CL_Fog_f);
1205
1206         // LordHavoc: added pausedemo
1207         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
1208         if (gamemode == GAME_NEHAHRA)
1209                 Cmd_AddCommand ("pmodel", CL_PModel_f);
1210
1211         Cvar_RegisterVariable(&r_draweffects);
1212         Cvar_RegisterVariable(&cl_explosions);
1213         Cvar_RegisterVariable(&cl_stainmaps);
1214
1215         CL_Parse_Init();
1216         CL_Particles_Init();
1217         CL_Screen_Init();
1218         CL_CGVM_Init();
1219
1220         CL_Video_Init();
1221 }
1222