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 void CL_LerpUpdate(entity_t *e)
 263 {
 264         entity_persistent_t *p;
 265         entity_render_t *r;
 266         p = &e->persistent;
 267         r = &e->render;
 268
 269         if (p->modelindex != e->state_current.modelindex)
 270         {
 271                 // reset all interpolation information
 272                 p->modelindex = e->state_current.modelindex;
 273                 p->frame1 = p->frame2 = e->state_current.frame;
 274                 p->frame1time = p->frame2time = cl.time;
 275                 p->framelerp = 1;
 276         }
 277         else if (p->frame2 != e->state_current.frame)
 278         {
 279                 // transition to new frame
 280                 p->frame1 = p->frame2;
 281                 p->frame1time = p->frame2time;
 282                 p->frame2 = e->state_current.frame;
 283                 p->frame2time = cl.time;
 284                 p->framelerp = 0;
 285         }
 286         else
 287         {
 288                 // update transition
 289                 p->framelerp = (cl.time - p->frame2time) * 10;
 290                 p->framelerp = bound(0, p->framelerp, 1);
 291         }
 292
 293         r->model = cl.model_precache[e->state_current.modelindex];
 294         Mod_CheckLoaded(r->model);
 295         r->frame = e->state_current.frame;
 296         r->frame1 = p->frame1;
 297         r->frame2 = p->frame2;
 298         r->framelerp = p->framelerp;
 299         r->frame1time = p->frame1time;
 300         r->frame2time = p->frame2time;
 301 }
 302
 303 /*
 304 ===============
 305 CL_LerpPoint
 306
 307 Determines the fraction between the last two messages that the objects
 308 should be put at.
 309 ===============
 310 */
 311 static float CL_LerpPoint (void)
 312 {
 313         float f;
 314
 315         // dropped packet, or start of demo
 316         if (cl.mtime[1] < cl.mtime[0] - 0.1)
 317                 cl.mtime[1] = cl.mtime[0] - 0.1;
 318
 319         cl.time = bound(cl.mtime[1], cl.time, cl.mtime[0]);
 320
 321         // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
 322         f = cl.mtime[0] - cl.mtime[1];
 323         if (!f || cl_nolerp.integer || cls.timedemo || (sv.active && svs.maxclients == 1))
 324         {
 325                 cl.time = cl.mtime[0];
 326                 return 1;
 327         }
 328
 329         f = (cl.time - cl.mtime[1]) / f;
 330         return bound(0, f, 1);
 331 }
 332
 333 static void CL_RelinkStaticEntities(void)
 334 {
 335         int i;
 336         for (i = 0;i < cl_num_static_entities && r_refdef.numentities < r_refdef.maxentities;i++)
 337         {
 338                 Mod_CheckLoaded(cl_static_entities[i].render.model);
 339                 r_refdef.entities[r_refdef.numentities++] = &cl_static_entities[i].render;
 340         }
 341 }
 342
 343 /*
 344 ===============
 345 CL_RelinkEntities
 346 ===============
 347 */
 348 static void CL_RelinkNetworkEntities()
 349 {
 350         entity_t *ent;
 351         int i, effects, temp;
 352         float f, d, bobjrotate, bobjoffset, dlightradius, lerp;
 353         vec3_t oldorg, neworg, delta, dlightcolor, v, v2, mins, maxs;
 354
 355         bobjrotate = ANGLEMOD(100*cl.time);
 356         if (cl_itembobheight.value)
 357                 bobjoffset = (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
 358         else
 359                 bobjoffset = 0;
 360
 361         // start on the entity after the world
 362         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS;i++, ent++)
 363         {
 364                 // if the object isn't active in the current network frame, skip it
 365                 if (!cl_entities_active[i])
 366                         continue;
 367                 if (!ent->state_current.active)
 368                 {
 369                         cl_entities_active[i] = false;
 370                         continue;
 371                 }
 372
 373                 VectorCopy(ent->persistent.trail_origin, oldorg);
 374
 375                 if (!ent->state_previous.active)
 376                 {
 377                         // only one state available
 378                         lerp = 1;
 379                         VectorCopy (ent->state_current.origin, oldorg); // skip trails
 380                         VectorCopy (ent->state_current.origin, neworg);
 381                         VectorCopy (ent->state_current.angles, ent->render.angles);
 382                 }
 383                 else
 384                 {
 385                         // if the delta is large, assume a teleport and don't lerp
 386                         VectorSubtract(ent->state_current.origin, ent->state_previous.origin, delta);
 387                         // LordHavoc: increased tolerance from 100 to 200, and now to 1000
 388                         if ((sv.active && svs.maxclients == 1 && !(ent->state_current.flags & RENDER_STEP)) || cls.timedemo || DotProduct(delta, delta) > 1000*1000 || cl_nolerp.integer)
 389                                 lerp = 1;
 390                         else
 391                         {
 392                                 f = ent->state_current.time - ent->state_previous.time;
 393                                 if (f > 0)
 394                                         lerp = (cl.time - ent->state_previous.time) / f;
 395                                 else
 396                                         lerp = 1;
 397                         }
 398                         if (lerp >= 1)
 399                         {
 400                                 // no interpolation
 401                                 VectorCopy (ent->state_current.origin, neworg);
 402                                 VectorCopy (ent->state_current.angles, ent->render.angles);
 403                         }
 404                         else
 405                         {
 406                                 // interpolate the origin and angles
 407                                 VectorMA(ent->state_previous.origin, lerp, delta, neworg);
 408                                 VectorSubtract(ent->state_current.angles, ent->state_previous.angles, delta);
 409                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 410                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 411                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 412                                 VectorMA(ent->state_previous.angles, lerp, delta, ent->render.angles);
 413                         }
 414                 }
 415
 416                 VectorCopy (neworg, ent->persistent.trail_origin);
 417                 // persistent.modelindex will be updated by CL_LerpUpdate
 418                 if (ent->state_current.modelindex != ent->persistent.modelindex)
 419                         VectorCopy(neworg, oldorg);
 420
 421                 VectorCopy (neworg, ent->render.origin);
 422                 ent->render.flags = ent->state_current.flags;
 423                 ent->render.effects = effects = ent->state_current.effects;
 424                 if (ent->state_current.flags & RENDER_COLORMAPPED)
 425                         ent->render.colormap = ent->state_current.colormap;
 426                 else if (cl.scores == NULL || !ent->state_current.colormap)
 427                         ent->render.colormap = -1; // no special coloring
 428                 else
 429                         ent->render.colormap = cl.scores[ent->state_current.colormap - 1].colors; // color it
 430                 ent->render.skinnum = ent->state_current.skin;
 431                 ent->render.alpha = ent->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
 432                 ent->render.scale = ent->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
 433
 434                 // update interpolation info
 435                 CL_LerpUpdate(ent);
 436
 437                 // handle effects now...
 438                 dlightradius = 0;
 439                 dlightcolor[0] = 0;
 440                 dlightcolor[1] = 0;
 441                 dlightcolor[2] = 0;
 442
 443                 // LordHavoc: if the entity has no effects, don't check each
 444                 if (effects)
 445                 {
 446                         if (effects & EF_BRIGHTFIELD)
 447                                 CL_EntityParticles (ent);
 448                         if (effects & EF_MUZZLEFLASH)
 449                                 ent->persistent.muzzleflash = 100.0f;
 450                         if (effects & EF_DIMLIGHT)
 451                         {
 452                                 dlightcolor[0] += 200.0f;
 453                                 dlightcolor[1] += 200.0f;
 454                                 dlightcolor[2] += 200.0f;
 455                         }
 456                         if (effects & EF_BRIGHTLIGHT)
 457                         {
 458                                 dlightcolor[0] += 400.0f;
 459                                 dlightcolor[1] += 400.0f;
 460                                 dlightcolor[2] += 400.0f;
 461                         }
 462                         // LordHavoc: added EF_RED and EF_BLUE
 463                         if (effects & EF_RED) // red
 464                         {
 465                                 dlightcolor[0] += 200.0f;
 466                                 dlightcolor[1] +=  20.0f;
 467                                 dlightcolor[2] +=  20.0f;
 468                         }
 469                         if (effects & EF_BLUE) // blue
 470                         {
 471                                 dlightcolor[0] +=  20.0f;
 472                                 dlightcolor[1] +=  20.0f;
 473                                 dlightcolor[2] += 200.0f;
 474                         }
 475                         if (effects & EF_FLAME)
 476                         {
 477                                 if (ent->render.model)
 478                                 {
 479                                         mins[0] = neworg[0] - 16.0f;
 480                                         mins[1] = neworg[1] - 16.0f;
 481                                         mins[2] = neworg[2] - 16.0f;
 482                                         maxs[0] = neworg[0] + 16.0f;
 483                                         maxs[1] = neworg[1] + 16.0f;
 484                                         maxs[2] = neworg[2] + 16.0f;
 485                                         // how many flames to make
 486                                         temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
 487                                         CL_FlameCube(mins, maxs, temp);
 488                                 }
 489                                 d = lhrandom(200, 250);
 490                                 dlightcolor[0] += d * 1.0f;
 491                                 dlightcolor[1] += d * 0.7f;
 492                                 dlightcolor[2] += d * 0.3f;
 493                         }
 494                         if (effects & EF_STARDUST)
 495                         {
 496                                 if (ent->render.model)
 497                                 {
 498                                         mins[0] = neworg[0] - 16.0f;
 499                                         mins[1] = neworg[1] - 16.0f;
 500                                         mins[2] = neworg[2] - 16.0f;
 501                                         maxs[0] = neworg[0] + 16.0f;
 502                                         maxs[1] = neworg[1] + 16.0f;
 503                                         maxs[2] = neworg[2] + 16.0f;
 504                                         // how many particles to make
 505                                         temp = (int) (cl.time * 200) - (int) (cl.oldtime * 200);
 506                                         CL_Stardust(mins, maxs, temp);
 507                                 }
 508                                 d = 100;
 509                                 dlightcolor[0] += d * 1.0f;
 510                                 dlightcolor[1] += d * 0.7f;
 511                                 dlightcolor[2] += d * 0.3f;
 512                         }
 513                 }
 514
 515                 if (ent->persistent.muzzleflash > 0)
 516                 {
 517                         AngleVectors (ent->render.angles, v, NULL, NULL);
 518
 519                         v2[0] = v[0] * 18 + neworg[0];
 520                         v2[1] = v[1] * 18 + neworg[1];
 521                         v2[2] = v[2] * 18 + neworg[2] + 16;
 522                         CL_TraceLine(neworg, v2, v, NULL, 0, true);
 523
 524                         CL_AllocDlight (NULL, v, ent->persistent.muzzleflash, 1, 1, 1, 0, 0);
 525                         ent->persistent.muzzleflash -= cl.frametime * 1000;
 526                 }
 527
 528                 // LordHavoc: if the model has no flags, don't check each
 529                 if (ent->render.model && ent->render.model->flags)
 530                 {
 531                         if (ent->render.model->flags & EF_ROTATE)
 532                         {
 533                                 ent->render.angles[1] = bobjrotate;
 534                                 ent->render.origin[2] += bobjoffset;
 535                         }
 536                         // only do trails if present in the previous frame as well
 537                         if (ent->state_previous.active)
 538                         {
 539                                 if (ent->render.model->flags & EF_GIB)
 540                                         CL_RocketTrail (oldorg, neworg, 2, ent);
 541                                 else if (ent->render.model->flags & EF_ZOMGIB)
 542                                         CL_RocketTrail (oldorg, neworg, 4, ent);
 543                                 else if (ent->render.model->flags & EF_TRACER)
 544                                 {
 545                                         CL_RocketTrail (oldorg, neworg, 3, ent);
 546                                         dlightcolor[0] += 0x10;
 547                                         dlightcolor[1] += 0x40;
 548                                         dlightcolor[2] += 0x10;
 549                                 }
 550                                 else if (ent->render.model->flags & EF_TRACER2)
 551                                 {
 552                                         CL_RocketTrail (oldorg, neworg, 5, ent);
 553                                         dlightcolor[0] += 0x50;
 554                                         dlightcolor[1] += 0x30;
 555                                         dlightcolor[2] += 0x10;
 556                                 }
 557                                 else if (ent->render.model->flags & EF_ROCKET)
 558                                 {
 559                                         CL_RocketTrail (oldorg, ent->render.origin, 0, ent);
 560                                         dlightcolor[0] += 200.0f;
 561                                         dlightcolor[1] += 160.0f;
 562                                         dlightcolor[2] +=  80.0f;
 563                                 }
 564                                 else if (ent->render.model->flags & EF_GRENADE)
 565                                 {
 566                                         if (ent->render.alpha == -1) // LordHavoc: Nehahra dem compatibility (cigar smoke)
 567                                                 CL_RocketTrail (oldorg, neworg, 7, ent);
 568                                         else
 569                                                 CL_RocketTrail (oldorg, neworg, 1, ent);
 570                                 }
 571                                 else if (ent->render.model->flags & EF_TRACER3)
 572                                 {
 573                                         CL_RocketTrail (oldorg, neworg, 6, ent);
 574                                         dlightcolor[0] += 0x50;
 575                                         dlightcolor[1] += 0x20;
 576                                         dlightcolor[2] += 0x40;
 577                                 }
 578                         }
 579                 }
 580                 // LordHavoc: customizable glow
 581                 if (ent->state_current.glowsize)
 582                 {
 583                         // * 4 for the expansion from 0-255 to 0-1023 range,
 584                         // / 255 to scale down byte colors
 585                         VectorMA(dlightcolor, ent->state_current.glowsize * (4.0f / 255.0f), (qbyte *)&d_8to24table[ent->state_current.glowcolor], dlightcolor);
 586                 }
 587                 // LordHavoc: customizable trail
 588                 if (ent->render.flags & RENDER_GLOWTRAIL)
 589                         CL_RocketTrail2 (oldorg, neworg, ent->state_current.glowcolor, ent);
 590
 591                 if (dlightcolor[0] || dlightcolor[1] || dlightcolor[2])
 592                 {
 593                         VectorCopy(neworg, v);
 594                         // hack to make glowing player light shine on their gun
 595                         if (i == cl.viewentity && !chase_active.integer)
 596                                 v[2] += 30;
 597                         CL_AllocDlight (NULL, v, 1, dlightcolor[0], dlightcolor[1], dlightcolor[2], 0, 0);
 598                 }
 599
 600                 if (chase_active.integer)
 601                 {
 602                         if (ent->render.flags & RENDER_VIEWMODEL)
 603                                 continue;
 604                 }
 605                 else
 606                 {
 607                         if (i == cl.viewentity || (ent->render.flags & RENDER_EXTERIORMODEL))
 608                                 continue;
 609                 }
 610
 611                 if (ent->render.model == NULL)
 612                         continue;
 613                 if (effects & EF_NODRAW)
 614                         continue;
 615
 616                 if (ent->render.angles[0] || ent->render.angles[2])
 617                 {
 618                         // pitch or roll
 619                         VectorAdd(ent->render.origin, ent->render.model->rotatedmins, ent->render.mins);
 620                         VectorAdd(ent->render.origin, ent->render.model->rotatedmaxs, ent->render.maxs);
 621                 }
 622                 else if (ent->render.angles[1])
 623                 {
 624                         // yaw
 625                         VectorAdd(ent->render.origin, ent->render.model->yawmins, ent->render.mins);
 626                         VectorAdd(ent->render.origin, ent->render.model->yawmaxs, ent->render.maxs);
 627                 }
 628                 else
 629                 {
 630                         VectorAdd(ent->render.origin, ent->render.model->normalmins, ent->render.mins);
 631                         VectorAdd(ent->render.origin, ent->render.model->normalmaxs, ent->render.maxs);
 632                 }
 633
 634                 if (r_refdef.numentities < r_refdef.maxentities)
 635                         r_refdef.entities[r_refdef.numentities++] = &ent->render;
 636
 637                 if (ent->render.model->name[0] == '*' && ent->render.model->type == mod_brush)
 638                         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &ent->render;
 639
 640                 if (cl_num_entities < i + 1)
 641                         cl_num_entities = i + 1;
 642         }
 643 }
 644
 645 void CL_LerpPlayer(float frac)
 646 {
 647         int i;
 648         float d;
 649
 650         if (cl.entitydatabase.numframes && cl.viewentity == cl.playerentity)
 651         {
 652                 cl.viewentorigin[0] = cl.viewentoriginold[0] + frac * (cl.viewentoriginnew[0] - cl.viewentoriginold[0]);
 653                 cl.viewentorigin[1] = cl.viewentoriginold[1] + frac * (cl.viewentoriginnew[1] - cl.viewentoriginold[1]);
 654                 cl.viewentorigin[2] = cl.viewentoriginold[2] + frac * (cl.viewentoriginnew[2] - cl.viewentoriginold[2]);
 655         }
 656         else
 657                 VectorCopy (cl_entities[cl.viewentity].render.origin, cl.viewentorigin);
 658
 659         cl.viewzoom = cl.viewzoomold + frac * (cl.viewzoomnew - cl.viewzoomold);
 660
 661         for (i = 0;i < 3;i++)
 662                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
 663
 664         if (cls.demoplayback)
 665         {
 666                 // interpolate the angles
 667                 for (i = 0;i < 3;i++)
 668                 {
 669                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
 670                         if (d > 180)
 671                                 d -= 360;
 672                         else if (d < -180)
 673                                 d += 360;
 674                         cl.viewangles[i] = cl.mviewangles[1][i] + frac * d;
 675                 }
 676         }
 677 }
 678
 679 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
 680 {
 681         int i;
 682         cl_effect_t *e;
 683         if (!modelindex) // sanity check
 684                 return;
 685         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
 686         {
 687                 if (e->active)
 688                         continue;
 689                 e->active = true;
 690                 VectorCopy(org, e->origin);
 691                 e->modelindex = modelindex;
 692                 e->starttime = cl.time;
 693                 e->startframe = startframe;
 694                 e->endframe = startframe + framecount;
 695                 e->framerate = framerate;
 696
 697                 e->frame = 0;
 698                 e->frame1time = cl.time;
 699                 e->frame2time = cl.time;
 700                 break;
 701         }
 702 }
 703
 704 static void CL_RelinkEffects()
 705 {
 706         int i, intframe;
 707         cl_effect_t *e;
 708         entity_t *ent;
 709         float frame;
 710
 711         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
 712         {
 713                 if (e->active)
 714                 {
 715                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
 716                         intframe = frame;
 717                         if (intframe < 0 || intframe >= e->endframe)
 718                         {
 719                                 e->active = false;
 720                                 memset(e, 0, sizeof(*e));
 721                                 continue;
 722                         }
 723
 724                         if (intframe != e->frame)
 725                         {
 726                                 e->frame = intframe;
 727                                 e->frame1time = e->frame2time;
 728                                 e->frame2time = cl.time;
 729                         }
 730
 731                         // if we're drawing effects, get a new temp entity
 732                         // (NewTempEntity adds it to the render entities list for us)
 733                         if (r_draweffects.integer && (ent = CL_NewTempEntity()))
 734                         {
 735                                 // interpolation stuff
 736                                 ent->render.frame1 = intframe;
 737                                 ent->render.frame2 = intframe + 1;
 738                                 if (ent->render.frame2 >= e->endframe)
 739                                         ent->render.frame2 = -1; // disappear
 740                                 ent->render.framelerp = frame - intframe;
 741                                 ent->render.frame1time = e->frame1time;
 742                                 ent->render.frame2time = e->frame2time;
 743
 744                                 // normal stuff
 745                                 VectorCopy(e->origin, ent->render.origin);
 746                                 ent->render.model = cl.model_precache[e->modelindex];
 747                                 ent->render.frame = ent->render.frame2;
 748                                 ent->render.colormap = -1; // no special coloring
 749                                 ent->render.scale = 1;
 750                                 ent->render.alpha = 1;
 751
 752                                 if (ent->render.angles[0] || ent->render.angles[2])
 753                                 {
 754                                         // pitch or roll
 755                                         VectorAdd(ent->render.origin, ent->render.model->rotatedmins, ent->render.mins);
 756                                         VectorAdd(ent->render.origin, ent->render.model->rotatedmaxs, ent->render.maxs);
 757                                 }
 758                                 else if (ent->render.angles[1])
 759                                 {
 760                                         // yaw
 761                                         VectorAdd(ent->render.origin, ent->render.model->yawmins, ent->render.mins);
 762                                         VectorAdd(ent->render.origin, ent->render.model->yawmaxs, ent->render.maxs);
 763                                 }
 764                                 else
 765                                 {
 766                                         VectorAdd(ent->render.origin, ent->render.model->normalmins, ent->render.mins);
 767                                         VectorAdd(ent->render.origin, ent->render.model->normalmaxs, ent->render.maxs);
 768                                 }
 769                         }
 770                 }
 771         }
 772 }
 773
 774 void CL_RelinkWorld (void)
 775 {
 776         if (cl_num_entities < 1)
 777                 cl_num_entities = 1;
 778         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &cl_entities[0].render;
 779 }
 780
 781 void CL_RelinkEntities (void)
 782 {
 783         float frac;
 784
 785         // fraction from previous network update to current
 786         frac = CL_LerpPoint();
 787
 788         CL_ClearTempEntities();
 789         CL_DecayLights();
 790         CL_RelinkWorld();
 791         CL_RelinkBeams();
 792         CL_RelinkStaticEntities();
 793         CL_RelinkNetworkEntities();
 794         CL_RelinkEffects();
 795         CL_MoveParticles();
 796
 797         CL_LerpPlayer(frac);
 798 }
 799
 800
 801 /*
 802 ===============
 803 CL_ReadFromServer
 804
 805 Read all incoming data from the server
 806 ===============
 807 */
 808 int CL_ReadFromServer (void)
 809 {
 810         int ret, netshown;
 811
 812         cl.oldtime = cl.time;
 813         cl.time += cl.frametime;
 814
 815         netshown = false;
 816         do
 817         {
 818                 ret = CL_GetMessage ();
 819                 if (ret == -1)
 820                         Host_Error ("CL_ReadFromServer: lost server connection");
 821                 if (!ret)
 822                         break;
 823
 824                 cl.last_received_message = realtime;
 825
 826                 if (cl_shownet.integer)
 827                         netshown = true;
 828
 829                 CL_ParseServerMessage ();
 830         }
 831         while (ret && cls.state == ca_connected);
 832
 833         if (netshown)
 834                 Con_Printf ("\n");
 835
 836         r_refdef.numentities = 0;
 837         cl_num_entities = 0;
 838         cl_num_brushmodel_entities = 0;
 839
 840         if (cls.state == ca_connected && cl.worldmodel)
 841         {
 842                 CL_RelinkEntities ();
 843
 844                 // run cgame code (which can add more entities)
 845                 CL_CGVM_Frame();
 846         }
 847
 848 //
 849 // bring the links up to date
 850 //
 851         return 0;
 852 }
 853
 854 /*
 855 =================
 856 CL_SendCmd
 857 =================
 858 */
 859 void CL_SendCmd (void)
 860 {
 861         usercmd_t               cmd;
 862
 863         if (cls.state != ca_connected)
 864                 return;
 865
 866         if (cls.signon == SIGNONS)
 867         {
 868         // get basic movement from keyboard
 869                 CL_BaseMove (&cmd);
 870
 871                 IN_PreMove(); // OS independent code
 872
 873         // allow mice or other external controllers to add to the move
 874                 IN_Move (&cmd);
 875
 876                 IN_PostMove(); // OS independent code
 877
 878         // send the unreliable message
 879                 CL_SendMove (&cmd);
 880         }
 881 #ifndef NOROUTINGFIX
 882         else
 883         {
 884                 // LordHavoc: fix for NAT routing of netquake:
 885                 // bounce back a clc_nop message to the newly allocated server port,
 886                 // to establish a routing connection for incoming frames,
 887                 // the server waits for this before sending anything
 888                 if (realtime > cl.sendnoptime)
 889                 {
 890                         Con_DPrintf("sending clc_nop to get server's attention\n");
 891                         cl.sendnoptime = realtime + 3;
 892                         MSG_WriteByte(&cls.message, clc_nop);
 893                 }
 894         }
 895 #endif
 896
 897         if (cls.demoplayback)
 898         {
 899                 SZ_Clear (&cls.message);
 900                 return;
 901         }
 902
 903 // send the reliable message
 904         if (!cls.message.cursize)
 905                 return;         // no message at all
 906
 907         if (!NET_CanSendMessage (cls.netcon))
 908         {
 909                 Con_DPrintf ("CL_WriteToServer: can't send\n");
 910                 return;
 911         }
 912
 913         if (NET_SendMessage (cls.netcon, &cls.message) == -1)
 914                 Host_Error ("CL_WriteToServer: lost server connection");
 915
 916         SZ_Clear (&cls.message);
 917 }
 918
 919 // LordHavoc: pausedemo command
 920 static void CL_PauseDemo_f (void)
 921 {
 922         cls.demopaused = !cls.demopaused;
 923         if (cls.demopaused)
 924                 Con_Printf("Demo paused\n");
 925         else
 926                 Con_Printf("Demo unpaused\n");
 927 }
 928
 929 /*
 930 ======================
 931 CL_PModel_f
 932 LordHavoc: Intended for Nehahra, I personally think this is dumb, but Mindcrime won't listen.
 933 ======================
 934 */
 935 static void CL_PModel_f (void)
 936 {
 937         int i;
 938         eval_t *val;
 939
 940         if (Cmd_Argc () == 1)
 941         {
 942                 Con_Printf ("\"pmodel\" is \"%s\"\n", cl_pmodel.string);
 943                 return;
 944         }
 945         i = atoi(Cmd_Argv(1));
 946
 947         if (cmd_source == src_command)
 948         {
 949                 if (cl_pmodel.integer == i)
 950                         return;
 951                 Cvar_SetValue ("_cl_pmodel", i);
 952                 if (cls.state == ca_connected)
 953                         Cmd_ForwardToServer ();
 954                 return;
 955         }
 956
 957         host_client->pmodel = i;
 958         if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_pmodel)))
 959                 val->_float = i;
 960 }
 961
 962 /*
 963 ======================
 964 CL_Fog_f
 965 ======================
 966 */
 967 static void CL_Fog_f (void)
 968 {
 969         if (Cmd_Argc () == 1)
 970         {
 971                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
 972                 return;
 973         }
 974         fog_density = atof(Cmd_Argv(1));
 975         fog_red = atof(Cmd_Argv(2));
 976         fog_green = atof(Cmd_Argv(3));
 977         fog_blue = atof(Cmd_Argv(4));
 978 }
 979
 980 /*
 981 =================
 982 CL_Init
 983 =================
 984 */
 985 void CL_Init (void)
 986 {
 987         cl_scores_mempool = Mem_AllocPool("client player info");
 988         cl_entities_mempool = Mem_AllocPool("client entities");
 989         cl_refdef_mempool = Mem_AllocPool("refdef");
 990
 991         memset(&r_refdef, 0, sizeof(r_refdef));
 992         // max entities sent to renderer per frame
 993         r_refdef.maxentities = MAX_EDICTS + 256 + 512;
 994         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * r_refdef.maxentities);
 995         // 256k drawqueue buffer
 996         r_refdef.maxdrawqueuesize = 256 * 1024;
 997         r_refdef.drawqueue = Mem_Alloc(cl_refdef_mempool, r_refdef.maxdrawqueuesize);
 998
 999         SZ_Alloc (&cls.message, 1024, "cls.message");
1000
1001         CL_InitInput ();
1002         CL_InitTEnts ();
1003
1004 //
1005 // register our commands
1006 //
1007         Cvar_RegisterVariable (&cl_name);
1008         Cvar_RegisterVariable (&cl_color);
1009         if (gamemode == GAME_NEHAHRA)
1010                 Cvar_RegisterVariable (&cl_pmodel);
1011         Cvar_RegisterVariable (&cl_upspeed);
1012         Cvar_RegisterVariable (&cl_forwardspeed);
1013         Cvar_RegisterVariable (&cl_backspeed);
1014         Cvar_RegisterVariable (&cl_sidespeed);
1015         Cvar_RegisterVariable (&cl_movespeedkey);
1016         Cvar_RegisterVariable (&cl_yawspeed);
1017         Cvar_RegisterVariable (&cl_pitchspeed);
1018         Cvar_RegisterVariable (&cl_anglespeedkey);
1019         Cvar_RegisterVariable (&cl_shownet);
1020         Cvar_RegisterVariable (&cl_nolerp);
1021         Cvar_RegisterVariable (&lookspring);
1022         Cvar_RegisterVariable (&lookstrafe);
1023         Cvar_RegisterVariable (&sensitivity);
1024         Cvar_RegisterVariable (&freelook);
1025
1026         Cvar_RegisterVariable (&m_pitch);
1027         Cvar_RegisterVariable (&m_yaw);
1028         Cvar_RegisterVariable (&m_forward);
1029         Cvar_RegisterVariable (&m_side);
1030
1031         Cvar_RegisterVariable (&cl_itembobspeed);
1032         Cvar_RegisterVariable (&cl_itembobheight);
1033
1034         Cmd_AddCommand ("entities", CL_PrintEntities_f);
1035         Cmd_AddCommand ("bitprofile", CL_BitProfile_f);
1036         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
1037         Cmd_AddCommand ("record", CL_Record_f);
1038         Cmd_AddCommand ("stop", CL_Stop_f);
1039         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
1040         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
1041
1042         Cmd_AddCommand ("fog", CL_Fog_f);
1043
1044         // LordHavoc: added pausedemo
1045         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
1046         if (gamemode == GAME_NEHAHRA)
1047                 Cmd_AddCommand ("pmodel", CL_PModel_f);
1048
1049         Cvar_RegisterVariable(&r_draweffects);
1050         Cvar_RegisterVariable(&cl_explosions);
1051         Cvar_RegisterVariable(&cl_stainmaps);
1052
1053         CL_Parse_Init();
1054         CL_Particles_Init();
1055         CL_Screen_Init();
1056         CL_CGVM_Init();
1057
1058         CL_Video_Init();
1059 }
1060