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 static void CL_RelinkStaticEntities(void)
 365 {
 366         int i;
 367         for (i = 0;i < cl_num_static_entities && r_refdef.numentities < r_refdef.maxentities;i++)
 368         {
 369                 Mod_CheckLoaded(cl_static_entities[i].render.model);
 370                 r_refdef.entities[r_refdef.numentities++] = &cl_static_entities[i].render;
 371         }
 372 }
 373
 374 /*
 375 ===============
 376 CL_RelinkEntities
 377 ===============
 378 */
 379 static void CL_RelinkNetworkEntities()
 380 {
 381         entity_t *ent;
 382         int i, effects, temp;
 383         float d, bobjrotate, bobjoffset, lerp;
 384         vec3_t oldorg, neworg, delta, dlightcolor, v, v2, mins, maxs;
 385
 386         bobjrotate = ANGLEMOD(100*cl.time);
 387         if (cl_itembobheight.value)
 388                 bobjoffset = (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
 389         else
 390                 bobjoffset = 0;
 391
 392         // start on the entity after the world
 393         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS;i++, ent++)
 394         {
 395                 // if the object isn't active in the current network frame, skip it
 396                 if (!cl_entities_active[i])
 397                         continue;
 398                 if (!ent->state_current.active)
 399                 {
 400                         cl_entities_active[i] = false;
 401                         continue;
 402                 }
 403
 404                 VectorCopy(ent->persistent.trail_origin, oldorg);
 405
 406                 if (!ent->state_previous.active)
 407                 {
 408                         // only one state available
 409                         VectorCopy (ent->persistent.neworigin, neworg);
 410                         VectorCopy (ent->persistent.newangles, ent->render.angles);
 411                         VectorCopy (neworg, oldorg);
 412                 }
 413                 else
 414                 {
 415                         // if the delta is large, assume a teleport and don't lerp
 416                         VectorSubtract(ent->persistent.neworigin, ent->persistent.oldorigin, delta);
 417                         if (ent->persistent.lerpdeltatime > 0)
 418                         {
 419                                 lerp = (cl.time - ent->persistent.lerpstarttime) / ent->persistent.lerpdeltatime;
 420                                 if (lerp < 1)
 421                                 {
 422                                         // interpolate the origin and angles
 423                                         VectorMA(ent->persistent.oldorigin, lerp, delta, neworg);
 424                                         VectorSubtract(ent->persistent.newangles, ent->persistent.oldangles, delta);
 425                                         if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 426                                         if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 427                                         if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 428                                         VectorMA(ent->persistent.oldangles, lerp, delta, ent->render.angles);
 429                                 }
 430                                 else
 431                                 {
 432                                         // no interpolation
 433                                         VectorCopy (ent->persistent.neworigin, neworg);
 434                                         VectorCopy (ent->persistent.newangles, ent->render.angles);
 435                                 }
 436                         }
 437                         else
 438                         {
 439                                 // no interpolation
 440                                 VectorCopy (ent->persistent.neworigin, neworg);
 441                                 VectorCopy (ent->persistent.newangles, ent->render.angles);
 442                         }
 443                 }
 444
 445                 VectorCopy (neworg, ent->persistent.trail_origin);
 446                 // persistent.modelindex will be updated by CL_LerpUpdate
 447                 if (ent->state_current.modelindex != ent->persistent.modelindex)
 448                         VectorCopy(neworg, oldorg);
 449
 450                 VectorCopy (neworg, ent->render.origin);
 451                 ent->render.flags = ent->state_current.flags;
 452                 ent->render.effects = effects = ent->state_current.effects;
 453                 if (ent->state_current.flags & RENDER_COLORMAPPED)
 454                         ent->render.colormap = ent->state_current.colormap;
 455                 else if (cl.scores == NULL || !ent->state_current.colormap)
 456                         ent->render.colormap = -1; // no special coloring
 457                 else
 458                         ent->render.colormap = cl.scores[ent->state_current.colormap - 1].colors; // color it
 459                 ent->render.skinnum = ent->state_current.skin;
 460                 ent->render.alpha = ent->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
 461                 ent->render.scale = ent->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
 462
 463                 // update interpolation info
 464                 CL_LerpUpdate(ent);
 465
 466                 // handle effects now...
 467                 dlightcolor[0] = 0;
 468                 dlightcolor[1] = 0;
 469                 dlightcolor[2] = 0;
 470
 471                 // LordHavoc: if the entity has no effects, don't check each
 472                 if (effects)
 473                 {
 474                         if (effects & EF_BRIGHTFIELD)
 475                                 CL_EntityParticles (ent);
 476                         if (effects & EF_MUZZLEFLASH)
 477                                 ent->persistent.muzzleflash = 100.0f;
 478                         if (effects & EF_DIMLIGHT)
 479                         {
 480                                 dlightcolor[0] += 200.0f;
 481                                 dlightcolor[1] += 200.0f;
 482                                 dlightcolor[2] += 200.0f;
 483                         }
 484                         if (effects & EF_BRIGHTLIGHT)
 485                         {
 486                                 dlightcolor[0] += 400.0f;
 487                                 dlightcolor[1] += 400.0f;
 488                                 dlightcolor[2] += 400.0f;
 489                         }
 490                         // LordHavoc: added EF_RED and EF_BLUE
 491                         if (effects & EF_RED) // red
 492                         {
 493                                 dlightcolor[0] += 200.0f;
 494                                 dlightcolor[1] +=  20.0f;
 495                                 dlightcolor[2] +=  20.0f;
 496                         }
 497                         if (effects & EF_BLUE) // blue
 498                         {
 499                                 dlightcolor[0] +=  20.0f;
 500                                 dlightcolor[1] +=  20.0f;
 501                                 dlightcolor[2] += 200.0f;
 502                         }
 503                         if (effects & EF_FLAME)
 504                         {
 505                                 if (ent->render.model)
 506                                 {
 507                                         mins[0] = neworg[0] - 16.0f;
 508                                         mins[1] = neworg[1] - 16.0f;
 509                                         mins[2] = neworg[2] - 16.0f;
 510                                         maxs[0] = neworg[0] + 16.0f;
 511                                         maxs[1] = neworg[1] + 16.0f;
 512                                         maxs[2] = neworg[2] + 16.0f;
 513                                         // how many flames to make
 514                                         temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
 515                                         CL_FlameCube(mins, maxs, temp);
 516                                 }
 517                                 d = lhrandom(200, 250);
 518                                 dlightcolor[0] += d * 1.0f;
 519                                 dlightcolor[1] += d * 0.7f;
 520                                 dlightcolor[2] += d * 0.3f;
 521                         }
 522                         if (effects & EF_STARDUST)
 523                         {
 524                                 if (ent->render.model)
 525                                 {
 526                                         mins[0] = neworg[0] - 16.0f;
 527                                         mins[1] = neworg[1] - 16.0f;
 528                                         mins[2] = neworg[2] - 16.0f;
 529                                         maxs[0] = neworg[0] + 16.0f;
 530                                         maxs[1] = neworg[1] + 16.0f;
 531                                         maxs[2] = neworg[2] + 16.0f;
 532                                         // how many particles to make
 533                                         temp = (int) (cl.time * 200) - (int) (cl.oldtime * 200);
 534                                         CL_Stardust(mins, maxs, temp);
 535                                 }
 536                                 d = 100;
 537                                 dlightcolor[0] += d * 1.0f;
 538                                 dlightcolor[1] += d * 0.7f;
 539                                 dlightcolor[2] += d * 0.3f;
 540                         }
 541                 }
 542
 543                 if (ent->persistent.muzzleflash > 0)
 544                 {
 545                         AngleVectors (ent->render.angles, v, NULL, NULL);
 546
 547                         v2[0] = v[0] * 18 + neworg[0];
 548                         v2[1] = v[1] * 18 + neworg[1];
 549                         v2[2] = v[2] * 18 + neworg[2] + 16;
 550                         CL_TraceLine(neworg, v2, v, NULL, 0, true);
 551
 552                         CL_AllocDlight (NULL, v, ent->persistent.muzzleflash, 1, 1, 1, 0, 0);
 553                         ent->persistent.muzzleflash -= cl.frametime * 1000;
 554                 }
 555
 556                 // LordHavoc: if the model has no flags, don't check each
 557                 if (ent->render.model && ent->render.model->flags)
 558                 {
 559                         if (ent->render.model->flags & EF_ROTATE)
 560                         {
 561                                 ent->render.angles[1] = bobjrotate;
 562                                 ent->render.origin[2] += bobjoffset;
 563                         }
 564                         // only do trails if present in the previous frame as well
 565                         if (ent->state_previous.active)
 566                         {
 567                                 if (ent->render.model->flags & EF_GIB)
 568                                         CL_RocketTrail (oldorg, neworg, 2, ent);
 569                                 else if (ent->render.model->flags & EF_ZOMGIB)
 570                                         CL_RocketTrail (oldorg, neworg, 4, ent);
 571                                 else if (ent->render.model->flags & EF_TRACER)
 572                                 {
 573                                         CL_RocketTrail (oldorg, neworg, 3, ent);
 574                                         dlightcolor[0] += 0x10;
 575                                         dlightcolor[1] += 0x40;
 576                                         dlightcolor[2] += 0x10;
 577                                 }
 578                                 else if (ent->render.model->flags & EF_TRACER2)
 579                                 {
 580                                         CL_RocketTrail (oldorg, neworg, 5, ent);
 581                                         dlightcolor[0] += 0x50;
 582                                         dlightcolor[1] += 0x30;
 583                                         dlightcolor[2] += 0x10;
 584                                 }
 585                                 else if (ent->render.model->flags & EF_ROCKET)
 586                                 {
 587                                         CL_RocketTrail (oldorg, ent->render.origin, 0, ent);
 588                                         dlightcolor[0] += 200.0f;
 589                                         dlightcolor[1] += 160.0f;
 590                                         dlightcolor[2] +=  80.0f;
 591                                 }
 592                                 else if (ent->render.model->flags & EF_GRENADE)
 593                                 {
 594                                         if (ent->render.alpha == -1) // LordHavoc: Nehahra dem compatibility (cigar smoke)
 595                                                 CL_RocketTrail (oldorg, neworg, 7, ent);
 596                                         else
 597                                                 CL_RocketTrail (oldorg, neworg, 1, ent);
 598                                 }
 599                                 else if (ent->render.model->flags & EF_TRACER3)
 600                                 {
 601                                         CL_RocketTrail (oldorg, neworg, 6, ent);
 602                                         dlightcolor[0] += 0x50;
 603                                         dlightcolor[1] += 0x20;
 604                                         dlightcolor[2] += 0x40;
 605                                 }
 606                         }
 607                 }
 608                 // LordHavoc: customizable glow
 609                 if (ent->state_current.glowsize)
 610                 {
 611                         // * 4 for the expansion from 0-255 to 0-1023 range,
 612                         // / 255 to scale down byte colors
 613                         VectorMA(dlightcolor, ent->state_current.glowsize * (4.0f / 255.0f), (qbyte *)&d_8to24table[ent->state_current.glowcolor], dlightcolor);
 614                 }
 615                 // LordHavoc: customizable trail
 616                 if (ent->render.flags & RENDER_GLOWTRAIL)
 617                         CL_RocketTrail2 (oldorg, neworg, ent->state_current.glowcolor, ent);
 618
 619                 if (dlightcolor[0] || dlightcolor[1] || dlightcolor[2])
 620                 {
 621                         VectorCopy(neworg, v);
 622                         // hack to make glowing player light shine on their gun
 623                         if (i == cl.viewentity && !chase_active.integer)
 624                                 v[2] += 30;
 625                         CL_AllocDlight (NULL, v, 1, dlightcolor[0], dlightcolor[1], dlightcolor[2], 0, 0);
 626                 }
 627
 628                 if (chase_active.integer)
 629                 {
 630                         if (ent->render.flags & RENDER_VIEWMODEL)
 631                                 continue;
 632                 }
 633                 else
 634                 {
 635                         if (i == cl.viewentity || (ent->render.flags & RENDER_EXTERIORMODEL))
 636                                 continue;
 637                 }
 638
 639                 // don't show entities with no modelindex (note: this still shows
 640                 // entities which have a modelindex that resolved to a NULL model)
 641                 if (!ent->state_current.modelindex)
 642                         continue;
 643                 if (effects & EF_NODRAW)
 644                         continue;
 645
 646                 CL_BoundingBoxForEntity(&ent->render);
 647                 if (ent->render.model && ent->render.model->name[0] == '*' && ent->render.model->type == mod_brush)
 648                         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &ent->render;
 649
 650                 if (r_refdef.numentities < r_refdef.maxentities)
 651                         r_refdef.entities[r_refdef.numentities++] = &ent->render;
 652
 653                 if (cl_num_entities < i + 1)
 654                         cl_num_entities = i + 1;
 655         }
 656 }
 657
 658 void CL_LerpPlayer(float frac)
 659 {
 660         int i;
 661         float d;
 662
 663         if (cl.entitydatabase.numframes && cl.viewentity == cl.playerentity)
 664         {
 665                 cl.viewentorigin[0] = cl.viewentoriginold[0] + frac * (cl.viewentoriginnew[0] - cl.viewentoriginold[0]);
 666                 cl.viewentorigin[1] = cl.viewentoriginold[1] + frac * (cl.viewentoriginnew[1] - cl.viewentoriginold[1]);
 667                 cl.viewentorigin[2] = cl.viewentoriginold[2] + frac * (cl.viewentoriginnew[2] - cl.viewentoriginold[2]);
 668         }
 669         else
 670                 VectorCopy (cl_entities[cl.viewentity].render.origin, cl.viewentorigin);
 671
 672         cl.viewzoom = cl.viewzoomold + frac * (cl.viewzoomnew - cl.viewzoomold);
 673
 674         for (i = 0;i < 3;i++)
 675                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
 676
 677         if (cls.demoplayback)
 678         {
 679                 // interpolate the angles
 680                 for (i = 0;i < 3;i++)
 681                 {
 682                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
 683                         if (d > 180)
 684                                 d -= 360;
 685                         else if (d < -180)
 686                                 d += 360;
 687                         cl.viewangles[i] = cl.mviewangles[1][i] + frac * d;
 688                 }
 689         }
 690 }
 691
 692 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
 693 {
 694         int i;
 695         cl_effect_t *e;
 696         if (!modelindex) // sanity check
 697                 return;
 698         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
 699         {
 700                 if (e->active)
 701                         continue;
 702                 e->active = true;
 703                 VectorCopy(org, e->origin);
 704                 e->modelindex = modelindex;
 705                 e->starttime = cl.time;
 706                 e->startframe = startframe;
 707                 e->endframe = startframe + framecount;
 708                 e->framerate = framerate;
 709
 710                 e->frame = 0;
 711                 e->frame1time = cl.time;
 712                 e->frame2time = cl.time;
 713                 break;
 714         }
 715 }
 716
 717 static void CL_RelinkEffects()
 718 {
 719         int i, intframe;
 720         cl_effect_t *e;
 721         entity_t *ent;
 722         float frame;
 723
 724         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
 725         {
 726                 if (e->active)
 727                 {
 728                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
 729                         intframe = frame;
 730                         if (intframe < 0 || intframe >= e->endframe)
 731                         {
 732                                 e->active = false;
 733                                 memset(e, 0, sizeof(*e));
 734                                 continue;
 735                         }
 736
 737                         if (intframe != e->frame)
 738                         {
 739                                 e->frame = intframe;
 740                                 e->frame1time = e->frame2time;
 741                                 e->frame2time = cl.time;
 742                         }
 743
 744                         // if we're drawing effects, get a new temp entity
 745                         // (NewTempEntity adds it to the render entities list for us)
 746                         if (r_draweffects.integer && (ent = CL_NewTempEntity()))
 747                         {
 748                                 // interpolation stuff
 749                                 ent->render.frame1 = intframe;
 750                                 ent->render.frame2 = intframe + 1;
 751                                 if (ent->render.frame2 >= e->endframe)
 752                                         ent->render.frame2 = -1; // disappear
 753                                 ent->render.framelerp = frame - intframe;
 754                                 ent->render.frame1time = e->frame1time;
 755                                 ent->render.frame2time = e->frame2time;
 756
 757                                 // normal stuff
 758                                 VectorCopy(e->origin, ent->render.origin);
 759                                 ent->render.model = cl.model_precache[e->modelindex];
 760                                 ent->render.frame = ent->render.frame2;
 761                                 ent->render.colormap = -1; // no special coloring
 762                                 ent->render.scale = 1;
 763                                 ent->render.alpha = 1;
 764
 765                                 CL_BoundingBoxForEntity(&ent->render);
 766                         }
 767                 }
 768         }
 769 }
 770
 771 void CL_RelinkWorld (void)
 772 {
 773         if (cl_num_entities < 1)
 774                 cl_num_entities = 1;
 775         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &cl_entities[0].render;
 776         CL_BoundingBoxForEntity(&cl_entities[0].render);
 777 }
 778
 779 void CL_RelinkEntities (void)
 780 {
 781         float frac;
 782
 783         // fraction from previous network update to current
 784         frac = CL_LerpPoint();
 785
 786         CL_ClearTempEntities();
 787         CL_DecayLights();
 788         CL_RelinkWorld();
 789         CL_RelinkBeams();
 790         CL_RelinkStaticEntities();
 791         CL_RelinkNetworkEntities();
 792         CL_RelinkEffects();
 793         CL_MoveParticles();
 794
 795         CL_LerpPlayer(frac);
 796 }
 797
 798
 799 /*
 800 ===============
 801 CL_ReadFromServer
 802
 803 Read all incoming data from the server
 804 ===============
 805 */
 806 int CL_ReadFromServer (void)
 807 {
 808         int ret, netshown;
 809
 810         cl.oldtime = cl.time;
 811         cl.time += cl.frametime;
 812
 813         netshown = false;
 814         do
 815         {
 816                 ret = CL_GetMessage ();
 817                 if (ret == -1)
 818                         Host_Error ("CL_ReadFromServer: lost server connection");
 819                 if (!ret)
 820                         break;
 821
 822                 cl.last_received_message = realtime;
 823
 824                 if (cl_shownet.integer)
 825                         netshown = true;
 826
 827                 CL_ParseServerMessage ();
 828         }
 829         while (ret && cls.state == ca_connected);
 830
 831         if (netshown)
 832                 Con_Printf ("\n");
 833
 834         r_refdef.numentities = 0;
 835         cl_num_entities = 0;
 836         cl_num_brushmodel_entities = 0;
 837
 838         if (cls.state == ca_connected && cls.signon == SIGNONS)
 839         {
 840                 CL_RelinkEntities ();
 841
 842                 // run cgame code (which can add more entities)
 843                 CL_CGVM_Frame();
 844         }
 845
 846 //
 847 // bring the links up to date
 848 //
 849         return 0;
 850 }
 851
 852 /*
 853 =================
 854 CL_SendCmd
 855 =================
 856 */
 857 void CL_SendCmd (void)
 858 {
 859         usercmd_t               cmd;
 860
 861         if (cls.state != ca_connected)
 862                 return;
 863
 864         if (cls.signon == SIGNONS)
 865         {
 866         // get basic movement from keyboard
 867                 CL_BaseMove (&cmd);
 868
 869                 IN_PreMove(); // OS independent code
 870
 871         // allow mice or other external controllers to add to the move
 872                 IN_Move (&cmd);
 873
 874                 IN_PostMove(); // OS independent code
 875
 876         // send the unreliable message
 877                 CL_SendMove (&cmd);
 878         }
 879 #ifndef NOROUTINGFIX
 880         else if (cls.signon == 0 && !cls.demoplayback)
 881         {
 882                 // LordHavoc: fix for NAT routing of netquake:
 883                 // bounce back a clc_nop message to the newly allocated server port,
 884                 // to establish a routing connection for incoming frames,
 885                 // the server waits for this before sending anything
 886                 if (realtime > cl.sendnoptime)
 887                 {
 888                         cl.sendnoptime = realtime + 3;
 889                         Con_DPrintf("sending clc_nop to get server's attention\n");
 890                         {
 891                                 sizebuf_t buf;
 892                                 qbyte data[128];
 893                                 buf.maxsize = 128;
 894                                 buf.cursize = 0;
 895                                 buf.data = data;
 896                                 MSG_WriteByte(&buf, clc_nop);
 897                                 if (NET_SendUnreliableMessage (cls.netcon, &buf) == -1)
 898                                 {
 899                                         Con_Printf ("CL_SendCmd: lost server connection\n");
 900                                         CL_Disconnect ();
 901                                 }
 902                         }
 903                 }
 904         }
 905 #endif
 906
 907         if (cls.demoplayback)
 908         {
 909                 SZ_Clear (&cls.message);
 910                 return;
 911         }
 912
 913 // send the reliable message
 914         if (!cls.message.cursize)
 915                 return;         // no message at all
 916
 917         if (!NET_CanSendMessage (cls.netcon))
 918         {
 919                 Con_DPrintf ("CL_WriteToServer: can't send\n");
 920                 if (developer.integer)
 921                         SZ_HexDumpToConsole(&cls.message);
 922                 return;
 923         }
 924
 925         if (NET_SendMessage (cls.netcon, &cls.message) == -1)
 926                 Host_Error ("CL_WriteToServer: lost server connection");
 927
 928         SZ_Clear (&cls.message);
 929 }
 930
 931 // LordHavoc: pausedemo command
 932 static void CL_PauseDemo_f (void)
 933 {
 934         cls.demopaused = !cls.demopaused;
 935         if (cls.demopaused)
 936                 Con_Printf("Demo paused\n");
 937         else
 938                 Con_Printf("Demo unpaused\n");
 939 }
 940
 941 /*
 942 ======================
 943 CL_PModel_f
 944 LordHavoc: Intended for Nehahra, I personally think this is dumb, but Mindcrime won't listen.
 945 ======================
 946 */
 947 static void CL_PModel_f (void)
 948 {
 949         int i;
 950         eval_t *val;
 951
 952         if (Cmd_Argc () == 1)
 953         {
 954                 Con_Printf ("\"pmodel\" is \"%s\"\n", cl_pmodel.string);
 955                 return;
 956         }
 957         i = atoi(Cmd_Argv(1));
 958
 959         if (cmd_source == src_command)
 960         {
 961                 if (cl_pmodel.integer == i)
 962                         return;
 963                 Cvar_SetValue ("_cl_pmodel", i);
 964                 if (cls.state == ca_connected)
 965                         Cmd_ForwardToServer ();
 966                 return;
 967         }
 968
 969         host_client->pmodel = i;
 970         if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_pmodel)))
 971                 val->_float = i;
 972 }
 973
 974 /*
 975 ======================
 976 CL_Fog_f
 977 ======================
 978 */
 979 static void CL_Fog_f (void)
 980 {
 981         if (Cmd_Argc () == 1)
 982         {
 983                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
 984                 return;
 985         }
 986         fog_density = atof(Cmd_Argv(1));
 987         fog_red = atof(Cmd_Argv(2));
 988         fog_green = atof(Cmd_Argv(3));
 989         fog_blue = atof(Cmd_Argv(4));
 990 }
 991
 992 /*
 993 =================
 994 CL_Init
 995 =================
 996 */
 997 void CL_Init (void)
 998 {
 999         cl_scores_mempool = Mem_AllocPool("client player info");
1000         cl_entities_mempool = Mem_AllocPool("client entities");
1001         cl_refdef_mempool = Mem_AllocPool("refdef");
1002
1003         memset(&r_refdef, 0, sizeof(r_refdef));
1004         // max entities sent to renderer per frame
1005         r_refdef.maxentities = MAX_EDICTS + 256 + 512;
1006         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * r_refdef.maxentities);
1007         // 256k drawqueue buffer
1008         r_refdef.maxdrawqueuesize = 256 * 1024;
1009         r_refdef.drawqueue = Mem_Alloc(cl_refdef_mempool, r_refdef.maxdrawqueuesize);
1010
1011         SZ_Alloc (&cls.message, 1024, "cls.message");
1012
1013         CL_InitInput ();
1014         CL_InitTEnts ();
1015
1016 //
1017 // register our commands
1018 //
1019         Cvar_RegisterVariable (&cl_name);
1020         Cvar_RegisterVariable (&cl_color);
1021         if (gamemode == GAME_NEHAHRA)
1022                 Cvar_RegisterVariable (&cl_pmodel);
1023         Cvar_RegisterVariable (&cl_upspeed);
1024         Cvar_RegisterVariable (&cl_forwardspeed);
1025         Cvar_RegisterVariable (&cl_backspeed);
1026         Cvar_RegisterVariable (&cl_sidespeed);
1027         Cvar_RegisterVariable (&cl_movespeedkey);
1028         Cvar_RegisterVariable (&cl_yawspeed);
1029         Cvar_RegisterVariable (&cl_pitchspeed);
1030         Cvar_RegisterVariable (&cl_anglespeedkey);
1031         Cvar_RegisterVariable (&cl_shownet);
1032         Cvar_RegisterVariable (&cl_nolerp);
1033         Cvar_RegisterVariable (&lookspring);
1034         Cvar_RegisterVariable (&lookstrafe);
1035         Cvar_RegisterVariable (&sensitivity);
1036         Cvar_RegisterVariable (&freelook);
1037
1038         Cvar_RegisterVariable (&m_pitch);
1039         Cvar_RegisterVariable (&m_yaw);
1040         Cvar_RegisterVariable (&m_forward);
1041         Cvar_RegisterVariable (&m_side);
1042
1043         Cvar_RegisterVariable (&cl_itembobspeed);
1044         Cvar_RegisterVariable (&cl_itembobheight);
1045
1046         Cmd_AddCommand ("entities", CL_PrintEntities_f);
1047         Cmd_AddCommand ("bitprofile", CL_BitProfile_f);
1048         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
1049         Cmd_AddCommand ("record", CL_Record_f);
1050         Cmd_AddCommand ("stop", CL_Stop_f);
1051         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
1052         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
1053
1054         Cmd_AddCommand ("fog", CL_Fog_f);
1055
1056         // LordHavoc: added pausedemo
1057         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
1058         if (gamemode == GAME_NEHAHRA)
1059                 Cmd_AddCommand ("pmodel", CL_PModel_f);
1060
1061         Cvar_RegisterVariable(&r_draweffects);
1062         Cvar_RegisterVariable(&cl_explosions);
1063         Cvar_RegisterVariable(&cl_stainmaps);
1064
1065         CL_Parse_Init();
1066         CL_Particles_Init();
1067         CL_Screen_Init();
1068         CL_CGVM_Init();
1069
1070         CL_Video_Init();
1071 }
1072