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
  24 // we need to declare some mouse variables here, because the menu system
  25 // references them even when on a unix system.
  26
  27 // these two are not intended to be set directly
  28 cvar_t cl_name = {CVAR_SAVE, "_cl_name", "player"};
  29 cvar_t cl_color = {CVAR_SAVE, "_cl_color", "0"};
  30 cvar_t cl_pmodel = {CVAR_SAVE, "_cl_pmodel", "0"};
  31
  32 cvar_t cl_shownet = {0, "cl_shownet","0"};
  33 cvar_t cl_nolerp = {0, "cl_nolerp", "0"};
  34
  35 cvar_t cl_itembobheight = {0, "cl_itembobheight", "8"};
  36 cvar_t cl_itembobspeed = {0, "cl_itembobspeed", "0.5"};
  37
  38 cvar_t lookspring = {CVAR_SAVE, "lookspring","0"};
  39 cvar_t lookstrafe = {CVAR_SAVE, "lookstrafe","0"};
  40 cvar_t sensitivity = {CVAR_SAVE, "sensitivity","3", 1, 30};
  41
  42 cvar_t m_pitch = {CVAR_SAVE, "m_pitch","0.022"};
  43 cvar_t m_yaw = {CVAR_SAVE, "m_yaw","0.022"};
  44 cvar_t m_forward = {CVAR_SAVE, "m_forward","1"};
  45 cvar_t m_side = {CVAR_SAVE, "m_side","0.8"};
  46
  47 cvar_t freelook = {CVAR_SAVE, "freelook", "1"};
  48
  49 cvar_t cl_draweffects = {0, "cl_draweffects", "1"};
  50
  51 mempool_t *cl_scores_mempool;
  52 mempool_t *cl_refdef_mempool;
  53
  54 client_static_t cls;
  55 client_state_t  cl;
  56 // FIXME: put these on hunk?
  57 entity_t                cl_entities[MAX_EDICTS];
  58 entity_t                cl_static_entities[MAX_STATIC_ENTITIES];
  59 lightstyle_t    cl_lightstyle[MAX_LIGHTSTYLES];
  60
  61 typedef struct effect_s
  62 {
  63         int active;
  64         vec3_t origin;
  65         float starttime;
  66         float framerate;
  67         int modelindex;
  68         int startframe;
  69         int endframe;
  70         // these are for interpolation
  71         int frame;
  72         double frame1time;
  73         double frame2time;
  74 }
  75 cl_effect_t;
  76
  77 #define MAX_EFFECTS 256
  78
  79 static cl_effect_t cl_effect[MAX_EFFECTS];
  80
  81
  82 /*
  83 =====================
  84 CL_ClearState
  85
  86 =====================
  87 */
  88 void CL_ClearState (void)
  89 {
  90         int                     i;
  91
  92         if (!sv.active)
  93                 Host_ClearMemory ();
  94
  95         Mem_EmptyPool(cl_scores_mempool);
  96
  97 // wipe the entire cl structure
  98         memset (&cl, 0, sizeof(cl));
  99
 100         SZ_Clear (&cls.message);
 101
 102 // clear other arrays
 103         memset(cl_entities, 0, sizeof(cl_entities));
 104         memset(cl_lightstyle, 0, sizeof(cl_lightstyle));
 105         memset(cl_temp_entities, 0, sizeof(cl_temp_entities));
 106         memset(cl_beams, 0, sizeof(cl_beams));
 107         memset(cl_dlights, 0, sizeof(cl_dlights));
 108         memset(cl_effect, 0, sizeof(cl_effect));
 109         CL_Screen_NewMap();
 110         CL_Particles_Clear();
 111         // LordHavoc: have to set up the baseline info for alpha and other stuff
 112         for (i = 0;i < MAX_EDICTS;i++)
 113         {
 114                 ClearStateToDefault(&cl_entities[i].state_baseline);
 115                 ClearStateToDefault(&cl_entities[i].state_previous);
 116                 ClearStateToDefault(&cl_entities[i].state_current);
 117         }
 118
 119         CL_CGVM_Clear();
 120 }
 121
 122 void CL_LerpUpdate(entity_t *e)
 123 {
 124         entity_persistent_t *p;
 125         entity_render_t *r;
 126         p = &e->persistent;
 127         r = &e->render;
 128
 129         if (p->modelindex != e->state_current.modelindex)
 130         {
 131                 // reset all interpolation information
 132                 p->modelindex = e->state_current.modelindex;
 133                 p->frame1 = p->frame2 = e->state_current.frame;
 134                 p->frame1time = p->frame2time = cl.time;
 135                 p->framelerp = 1;
 136         }
 137         else if (p->frame2 != e->state_current.frame)
 138         {
 139                 // transition to new frame
 140                 p->frame1 = p->frame2;
 141                 p->frame1time = p->frame2time;
 142                 p->frame2 = e->state_current.frame;
 143                 p->frame2time = cl.time;
 144                 p->framelerp = 0;
 145         }
 146         else
 147         {
 148                 // update transition
 149                 p->framelerp = (cl.time - p->frame2time) * 10;
 150                 p->framelerp = bound(0, p->framelerp, 1);
 151         }
 152
 153         r->model = cl.model_precache[e->state_current.modelindex];
 154         Mod_CheckLoaded(r->model);
 155         r->frame = e->state_current.frame;
 156         r->frame1 = p->frame1;
 157         r->frame2 = p->frame2;
 158         r->framelerp = p->framelerp;
 159         r->frame1time = p->frame1time;
 160         r->frame2time = p->frame2time;
 161 }
 162
 163 /*
 164 =====================
 165 CL_Disconnect
 166
 167 Sends a disconnect message to the server
 168 This is also called on Host_Error, so it shouldn't cause any errors
 169 =====================
 170 */
 171 void CL_Disconnect (void)
 172 {
 173         if (cls.state == ca_dedicated)
 174                 return;
 175
 176 // stop sounds (especially looping!)
 177         S_StopAllSounds (true);
 178
 179         // clear contents blends
 180         cl.cshifts[0].percent = 0;
 181         cl.cshifts[1].percent = 0;
 182         cl.cshifts[2].percent = 0;
 183         cl.cshifts[3].percent = 0;
 184
 185         cl.worldmodel = NULL;
 186
 187         if (cls.demoplayback)
 188                 CL_StopPlayback ();
 189         else if (cls.state == ca_connected)
 190         {
 191                 if (cls.demorecording)
 192                         CL_Stop_f ();
 193
 194                 Con_DPrintf ("Sending clc_disconnect\n");
 195                 SZ_Clear (&cls.message);
 196                 MSG_WriteByte (&cls.message, clc_disconnect);
 197                 NET_SendUnreliableMessage (cls.netcon, &cls.message);
 198                 SZ_Clear (&cls.message);
 199                 NET_Close (cls.netcon);
 200                 // if running a local server, shut it down
 201                 if (sv.active)
 202                         Host_ShutdownServer(false);
 203         }
 204         cls.state = ca_disconnected;
 205
 206         cls.demoplayback = cls.timedemo = false;
 207         cls.signon = 0;
 208 }
 209
 210 void CL_Disconnect_f (void)
 211 {
 212         CL_Disconnect ();
 213         if (sv.active)
 214                 Host_ShutdownServer (false);
 215 }
 216
 217
 218
 219
 220 /*
 221 =====================
 222 CL_EstablishConnection
 223
 224 Host should be either "local" or a net address to be passed on
 225 =====================
 226 */
 227 void CL_EstablishConnection (char *host)
 228 {
 229         sizebuf_t       buf;
 230         byte    data[128];
 231
 232         buf.maxsize = 128;
 233         buf.cursize = 0;
 234         buf.data = data;
 235
 236         if (cls.state == ca_dedicated)
 237                 return;
 238
 239         if (cls.demoplayback)
 240                 return;
 241
 242         CL_Disconnect ();
 243
 244         cls.netcon = NET_Connect (host);
 245         if (!cls.netcon)
 246                 Host_Error ("CL_Connect: connect failed\n");
 247         Con_DPrintf ("CL_EstablishConnection: connected to %s\n", host);
 248
 249         cls.demonum = -1;                       // not in the demo loop now
 250         cls.state = ca_connected;
 251         cls.signon = 0;                         // need all the signon messages before playing
 252
 253         CL_ClearState ();
 254 }
 255
 256 /*
 257 ==============
 258 CL_PrintEntities_f
 259 ==============
 260 */
 261 static void CL_PrintEntities_f (void)
 262 {
 263         entity_t        *ent;
 264         int                     i, j;
 265         char            name[32];
 266
 267         for (i = 0, ent = cl_entities;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
 268         {
 269                 if (!ent->state_current.active)
 270                         continue;
 271                 if (!ent->render.model)
 272                         continue;
 273
 274                 Con_Printf ("%3i:", i);
 275                 if (!ent->render.model)
 276                 {
 277                         Con_Printf ("EMPTY\n");
 278                         continue;
 279                 }
 280                 strncpy(name, ent->render.model->name, 25);
 281                 name[25] = 0;
 282                 for (j = strlen(name);j < 25;j++)
 283                         name[j] = ' ';
 284                 Con_Printf ("%s:%04i (%5i %5i %5i) [%3i %3i %3i] %4.2f %5.3f\n", 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);
 285         }
 286 }
 287
 288
 289 /*
 290 ===============
 291 CL_LerpPoint
 292
 293 Determines the fraction between the last two messages that the objects
 294 should be put at.
 295 ===============
 296 */
 297 static float CL_LerpPoint (void)
 298 {
 299         float   f;
 300
 301         // dropped packet, or start of demo
 302         if (cl.mtime[1] < cl.mtime[0] - 0.1)
 303                 cl.mtime[1] = cl.mtime[0] - 0.1;
 304
 305         cl.time = bound(cl.mtime[1], cl.time, cl.mtime[0]);
 306
 307         // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
 308         f = cl.mtime[0] - cl.mtime[1];
 309         if (!f || cl_nolerp.integer || cls.timedemo || (sv.active && svs.maxclients == 1))
 310         {
 311                 cl.time = cl.mtime[0];
 312                 return 1;
 313         }
 314
 315         f = (cl.time - cl.mtime[1]) / f;
 316         return bound(0, f, 1);
 317 }
 318
 319 static void CL_RelinkStaticEntities(void)
 320 {
 321         int i;
 322         for (i = 0;i < cl.num_statics && r_refdef.numentities < MAX_VISEDICTS;i++)
 323         {
 324                 Mod_CheckLoaded(cl_static_entities[i].render.model);
 325                 r_refdef.entities[r_refdef.numentities++] = &cl_static_entities[i].render;
 326         }
 327 }
 328
 329 /*
 330 ===============
 331 CL_RelinkEntities
 332 ===============
 333 */
 334 static void CL_RelinkNetworkEntities()
 335 {
 336         entity_t        *ent;
 337         int                     i, glowcolor, effects;
 338         float           f, d, bobjrotate, bobjoffset, dlightradius, glowsize, lerp;
 339         vec3_t          oldorg, neworg, delta, dlightcolor;
 340
 341         bobjrotate = ANGLEMOD(100*cl.time);
 342         if (cl_itembobheight.value)
 343                 bobjoffset = (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
 344         else
 345                 bobjoffset = 0;
 346
 347 // start on the entity after the world
 348         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
 349         {
 350                 // if the object wasn't included in the latest packet, remove it
 351                 if (!ent->state_current.active)
 352                         continue;
 353
 354                 VectorCopy(ent->persistent.trail_origin, oldorg);
 355
 356                 if (!ent->state_previous.active)
 357                 {
 358                         // only one state available
 359                         lerp = 1;
 360                         VectorCopy (ent->state_current.origin, oldorg); // skip trails
 361                         VectorCopy (ent->state_current.origin, neworg);
 362                         VectorCopy (ent->state_current.angles, ent->render.angles);
 363
 364                         /*
 365                         // monster interpolation
 366                         ent->persistent.steplerptime = 0;
 367                         VectorCopy(ent->state_current.origin, ent->persistent.stepoldorigin);
 368                         VectorCopy(ent->state_current.angles, ent->persistent.stepoldangles);
 369                         VectorCopy(ent->state_current.origin, ent->persistent.steporigin);
 370                         VectorCopy(ent->state_current.angles, ent->persistent.stepangles);
 371                         */
 372                 }
 373                 /*
 374                 else if ((ent->state_current.flags & ent->state_previous.flags) & ENTFLAG_STEP)
 375                 {
 376                         if (ent->state_current.origin[0] != ent->persistent.steporigin[0]
 377                          || ent->state_current.origin[1] != ent->persistent.steporigin[1]
 378                          || ent->state_current.origin[2] != ent->persistent.steporigin[2]
 379                          || ent->state_current.angles[0] != ent->persistent.stepangles[0]
 380                          || ent->state_current.angles[1] != ent->persistent.stepangles[1]
 381                          || ent->state_current.angles[2] != ent->persistent.stepangles[2])
 382                         {
 383                                 // update lerp positions
 384                                 ent->clientpersistent.steplerptime = sv.time;
 385                                 VectorCopy(ent->steporigin, ent->stepoldorigin);
 386                                 VectorCopy(ent->stepangles, ent->stepoldangles);
 387                                 VectorCopy(ent->v.origin, ent->steporigin);
 388                                 VectorCopy(ent->v.angles, ent->stepangles);
 389                         }
 390                         lerp = (cl.time - ent->persistent.steplerptime) * 10.0;
 391                         if (lerp < 1)
 392                         {
 393                                 // origin
 394                                 VectorSubtract(ent->persistent.steporigin, ent->persistent.stepoldorigin, delta);
 395                                 VectorMA(ent->persistent.stepoldorigin, lerp, delta, neworg);
 396
 397                                 // angles
 398                                 VectorSubtract(ent->persistent.stepangles, ent->persistent.stepoldangles, delta);
 399                                 // choose shortest rotate (to avoid 'spin around' situations)
 400                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 401                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 402                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 403                                 VectorMA(ent->stepoldangles, lerp, delta, ent->render.angles);
 404                         }
 405                         else
 406                         {
 407                                 VectorCopy(ent->persistent.steporigin, neworg);
 408                                 VectorCopy(ent->persistent.stepangles, ent->render.angles);
 409                         }
 410                 }
 411                 */
 412                 else
 413                 {
 414                         /*
 415                         // monster interpolation
 416                         ent->persistent.steplerptime = 0;
 417                         VectorCopy(ent->state_current.origin, ent->persistent.stepoldorigin);
 418                         VectorCopy(ent->state_current.angles, ent->persistent.stepoldangles);
 419                         VectorCopy(ent->state_current.origin, ent->persistent.steporigin);
 420                         VectorCopy(ent->state_current.angles, ent->persistent.stepangles);
 421                         */
 422
 423                         // if the delta is large, assume a teleport and don't lerp
 424                         VectorSubtract(ent->state_current.origin, ent->state_previous.origin, delta);
 425                         // LordHavoc: increased tolerance from 100 to 200, and now to 1000
 426                         if ((sv.active && svs.maxclients == 1 && !(ent->state_current.flags & RENDER_STEP)) || cls.timedemo || DotProduct(delta, delta) > 1000*1000 || cl_nolerp.integer)
 427                                 lerp = 1;
 428                         else
 429                         {
 430                                 f = ent->state_current.time - ent->state_previous.time;
 431                                 if (f > 0)
 432                                         lerp = (cl.time - ent->state_previous.time) / f;
 433                                 else
 434                                         lerp = 1;
 435                         }
 436                         if (lerp >= 1)
 437                         {
 438                                 // no interpolation
 439                                 VectorCopy (ent->state_current.origin, neworg);
 440                                 VectorCopy (ent->state_current.angles, ent->render.angles);
 441                         }
 442                         else
 443                         {
 444                                 // interpolate the origin and angles
 445                                 VectorMA(ent->state_previous.origin, lerp, delta, neworg);
 446                                 VectorSubtract(ent->state_current.angles, ent->state_previous.angles, delta);
 447                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 448                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 449                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 450                                 VectorMA(ent->state_previous.angles, lerp, delta, ent->render.angles);
 451                         }
 452                 }
 453
 454                 VectorCopy (neworg, ent->persistent.trail_origin);
 455                 // persistent.modelindex will be updated by CL_LerpUpdate
 456                 if (ent->state_current.modelindex != ent->persistent.modelindex)
 457                         VectorCopy(neworg, oldorg);
 458
 459                 VectorCopy (neworg, ent->render.origin);
 460                 ent->render.flags = ent->state_current.flags;
 461                 ent->render.effects = effects = ent->state_current.effects;
 462                 if (cl.scores == NULL || !ent->state_current.colormap)
 463                         ent->render.colormap = -1; // no special coloring
 464                 else
 465                         ent->render.colormap = cl.scores[ent->state_current.colormap - 1].colors; // color it
 466                 ent->render.skinnum = ent->state_current.skin;
 467                 ent->render.alpha = ent->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
 468                 ent->render.scale = ent->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
 469
 470                 // update interpolation info
 471                 CL_LerpUpdate(ent);
 472
 473                 // handle effects now...
 474                 dlightradius = 0;
 475                 dlightcolor[0] = 0;
 476                 dlightcolor[1] = 0;
 477                 dlightcolor[2] = 0;
 478
 479                 // LordHavoc: if the entity has no effects, don't check each
 480                 if (effects)
 481                 {
 482                         if (effects & EF_BRIGHTFIELD)
 483                                 CL_EntityParticles (ent);
 484                         if (effects & EF_MUZZLEFLASH)
 485                         {
 486                                 vec3_t v, v2;
 487
 488                                 AngleVectors (ent->render.angles, v, NULL, NULL);
 489
 490                                 v2[0] = v[0] * 18 + neworg[0];
 491                                 v2[1] = v[1] * 18 + neworg[1];
 492                                 v2[2] = v[2] * 18 + neworg[2] + 16;
 493                                 TraceLine(neworg, v2, v, NULL, 0, true);
 494
 495                                 CL_AllocDlight (NULL, v, 100, 1, 1, 1, 0, 0);
 496                         }
 497                         if (effects & EF_DIMLIGHT)
 498                         {
 499                                 dlightcolor[0] += 200.0f;
 500                                 dlightcolor[1] += 200.0f;
 501                                 dlightcolor[2] += 200.0f;
 502                         }
 503                         if (effects & EF_BRIGHTLIGHT)
 504                         {
 505                                 dlightcolor[0] += 400.0f;
 506                                 dlightcolor[1] += 400.0f;
 507                                 dlightcolor[2] += 400.0f;
 508                         }
 509                         // LordHavoc: added EF_RED and EF_BLUE
 510                         if (effects & EF_RED) // red
 511                         {
 512                                 dlightcolor[0] += 200.0f;
 513                                 dlightcolor[1] +=  20.0f;
 514                                 dlightcolor[2] +=  20.0f;
 515                         }
 516                         if (effects & EF_BLUE) // blue
 517                         {
 518                                 dlightcolor[0] +=  20.0f;
 519                                 dlightcolor[1] +=  20.0f;
 520                                 dlightcolor[2] += 200.0f;
 521                         }
 522                         if (effects & EF_FLAME)
 523                         {
 524                                 if (ent->render.model)
 525                                 {
 526                                         vec3_t mins, maxs;
 527                                         int temp;
 528                                         if (ent->render.angles[0] || ent->render.angles[2])
 529                                         {
 530                                                 VectorAdd(neworg, ent->render.model->rotatedmins, mins);
 531                                                 VectorAdd(neworg, ent->render.model->rotatedmaxs, maxs);
 532                                         }
 533                                         else if (ent->render.angles[1])
 534                                         {
 535                                                 VectorAdd(neworg, ent->render.model->yawmins, mins);
 536                                                 VectorAdd(neworg, ent->render.model->yawmaxs, maxs);
 537                                         }
 538                                         else
 539                                         {
 540                                                 VectorAdd(neworg, ent->render.model->normalmins, mins);
 541                                                 VectorAdd(neworg, ent->render.model->normalmaxs, maxs);
 542                                         }
 543                                         // how many flames to make
 544                                         temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
 545                                         CL_FlameCube(mins, maxs, temp);
 546                                 }
 547                                 d = lhrandom(200, 250);
 548                                 dlightcolor[0] += d * 1.0f;
 549                                 dlightcolor[1] += d * 0.7f;
 550                                 dlightcolor[2] += d * 0.3f;
 551                         }
 552                 }
 553
 554                 // LordHavoc: if the model has no flags, don't check each
 555                 if (ent->render.model && ent->render.model->flags)
 556                 {
 557                         if (ent->render.model->flags & EF_ROTATE)
 558                         {
 559                                 ent->render.angles[1] = bobjrotate;
 560                                 ent->render.origin[2] += bobjoffset;
 561                         }
 562                         // only do trails if present in the previous frame as well
 563                         if (ent->state_previous.active)
 564                         {
 565                                 if (ent->render.model->flags & EF_GIB)
 566                                         CL_RocketTrail (oldorg, neworg, 2, ent);
 567                                 else if (ent->render.model->flags & EF_ZOMGIB)
 568                                         CL_RocketTrail (oldorg, neworg, 4, ent);
 569                                 else if (ent->render.model->flags & EF_TRACER)
 570                                         CL_RocketTrail (oldorg, neworg, 3, ent);
 571                                 else if (ent->render.model->flags & EF_TRACER2)
 572                                         CL_RocketTrail (oldorg, neworg, 5, ent);
 573                                 else if (ent->render.model->flags & EF_ROCKET)
 574                                 {
 575                                         CL_RocketTrail (oldorg, ent->render.origin, 0, ent);
 576                                         // LordHavoc: changed from 200, 160, 80 to 250, 200, 100
 577                                         dlightcolor[0] += 250.0f;
 578                                         dlightcolor[1] += 200.0f;
 579                                         dlightcolor[2] += 100.0f;
 580                                 }
 581                                 else if (ent->render.model->flags & EF_GRENADE)
 582                                 {
 583                                         if (ent->render.alpha == -1) // LordHavoc: Nehahra dem compatibility
 584                                                 CL_RocketTrail (oldorg, neworg, 7, ent);
 585                                         else
 586                                                 CL_RocketTrail (oldorg, neworg, 1, ent);
 587                                 }
 588                                 else if (ent->render.model->flags & EF_TRACER3)
 589                                         CL_RocketTrail (oldorg, neworg, 6, ent);
 590                         }
 591                 }
 592                 // LordHavoc: customizable glow
 593                 glowsize = ent->state_current.glowsize * 4.0f; // FIXME: interpolate?
 594                 glowcolor = ent->state_current.glowcolor;
 595                 if (glowsize)
 596                 {
 597                         byte *tempcolor = (byte *)&d_8to24table[glowcolor];
 598                         dlightcolor[0] += glowsize * tempcolor[0] * (1.0f / 255.0f);
 599                         dlightcolor[1] += glowsize * tempcolor[1] * (1.0f / 255.0f);
 600                         dlightcolor[2] += glowsize * tempcolor[2] * (1.0f / 255.0f);
 601                 }
 602                 // LordHavoc: customizable trail
 603                 if (ent->render.flags & RENDER_GLOWTRAIL)
 604                         CL_RocketTrail2 (oldorg, neworg, glowcolor, ent);
 605
 606                 if (dlightcolor[0] || dlightcolor[1] || dlightcolor[2])
 607                 {
 608                         vec3_t vec;
 609                         dlightradius = VectorLength(dlightcolor);
 610                         d = 1.0f / dlightradius;
 611                         VectorCopy(neworg, vec);
 612                         // hack to make glowing player light shine on their gun
 613                         if (i == cl.viewentity && !chase_active.integer)
 614                                 vec[2] += 30;
 615                         CL_AllocDlight (/*&ent->render*/ NULL, vec, dlightradius, dlightcolor[0] * d, dlightcolor[1] * d, dlightcolor[2] * d, 0, 0);
 616                 }
 617
 618                 if (chase_active.integer)
 619                 {
 620                         if (ent->render.flags & RENDER_VIEWMODEL)
 621                                 continue;
 622                 }
 623                 else
 624                 {
 625                         if (i == cl.viewentity || (ent->render.flags & RENDER_EXTERIORMODEL))
 626                                 continue;
 627                 }
 628
 629                 if (ent->render.model == NULL)
 630                         continue;
 631                 if (effects & EF_NODRAW)
 632                         continue;
 633                 if (r_refdef.numentities < MAX_VISEDICTS)
 634                         r_refdef.entities[r_refdef.numentities++] = &ent->render;
 635         }
 636 }
 637
 638 void CL_LerpPlayer(float frac)
 639 {
 640         int i;
 641         float d;
 642
 643         if (cl.entitydatabase.numframes)
 644         {
 645                 cl.viewentorigin[0] = cl.viewentoriginold[0] + frac * (cl.viewentoriginnew[0] - cl.viewentoriginold[0]);
 646                 cl.viewentorigin[1] = cl.viewentoriginold[1] + frac * (cl.viewentoriginnew[1] - cl.viewentoriginold[1]);
 647                 cl.viewentorigin[2] = cl.viewentoriginold[2] + frac * (cl.viewentoriginnew[2] - cl.viewentoriginold[2]);
 648         }
 649         else
 650                 VectorCopy (cl_entities[cl.viewentity].render.origin, cl.viewentorigin);
 651
 652         cl.viewzoom = cl.viewzoomold + frac * (cl.viewzoomnew - cl.viewzoomold);
 653
 654         for (i = 0;i < 3;i++)
 655                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
 656
 657         if (cls.demoplayback)
 658         {
 659                 // interpolate the angles
 660                 for (i = 0;i < 3;i++)
 661                 {
 662                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
 663                         if (d > 180)
 664                                 d -= 360;
 665                         else if (d < -180)
 666                                 d += 360;
 667                         cl.viewangles[i] = cl.mviewangles[1][i] + frac*d;
 668                 }
 669         }
 670 }
 671
 672 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
 673 {
 674         int i;
 675         cl_effect_t *e;
 676         if (!modelindex) // sanity check
 677                 return;
 678         for (i = 0, e = cl_effect;i < MAX_EFFECTS;i++, e++)
 679         {
 680                 if (e->active)
 681                         continue;
 682                 e->active = true;
 683                 VectorCopy(org, e->origin);
 684                 e->modelindex = modelindex;
 685                 e->starttime = cl.time;
 686                 e->startframe = startframe;
 687                 e->endframe = startframe + framecount;
 688                 e->framerate = framerate;
 689
 690                 e->frame = 0;
 691                 e->frame1time = cl.time;
 692                 e->frame2time = cl.time;
 693                 break;
 694         }
 695 }
 696
 697 static void CL_RelinkEffects()
 698 {
 699         int i, intframe;
 700         cl_effect_t *e;
 701         entity_t *vis;
 702         float frame;
 703
 704         for (i = 0, e = cl_effect;i < MAX_EFFECTS;i++, e++)
 705         {
 706                 if (e->active)
 707                 {
 708                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
 709                         intframe = frame;
 710                         if (intframe < 0 || intframe >= e->endframe)
 711                         {
 712                                 e->active = false;
 713                                 memset(e, 0, sizeof(*e));
 714                                 continue;
 715                         }
 716
 717                         if (intframe != e->frame)
 718                         {
 719                                 e->frame = intframe;
 720                                 e->frame1time = e->frame2time;
 721                                 e->frame2time = cl.time;
 722                         }
 723
 724                         if ((vis = CL_NewTempEntity()))
 725                         {
 726                                 // interpolation stuff
 727                                 vis->render.frame1 = intframe;
 728                                 vis->render.frame2 = intframe + 1;
 729                                 if (vis->render.frame2 >= e->endframe)
 730                                         vis->render.frame2 = -1; // disappear
 731                                 vis->render.framelerp = frame - intframe;
 732                                 vis->render.frame1time = e->frame1time;
 733                                 vis->render.frame2time = e->frame2time;
 734
 735                                 // normal stuff
 736                                 VectorCopy(e->origin, vis->render.origin);
 737                                 vis->render.model = cl.model_precache[e->modelindex];
 738                                 vis->render.frame = vis->render.frame2;
 739                                 vis->render.colormap = -1; // no special coloring
 740                                 vis->render.scale = 1;
 741                                 vis->render.alpha = 1;
 742                         }
 743                 }
 744         }
 745 }
 746
 747 void CL_RelinkEntities (void)
 748 {
 749         float frac;
 750
 751         // fraction from previous network update to current
 752         frac = CL_LerpPoint ();
 753
 754         CL_DecayLights ();
 755         CL_RelinkStaticEntities();
 756         CL_RelinkNetworkEntities();
 757         TraceLine_ScanForBModels();
 758         CL_RelinkEffects();
 759         CL_MoveParticles();
 760         CL_UpdateTEnts();
 761
 762         CL_LerpPlayer(frac);
 763 }
 764
 765
 766 /*
 767 ===============
 768 CL_ReadFromServer
 769
 770 Read all incoming data from the server
 771 ===============
 772 */
 773 int CL_ReadFromServer (void)
 774 {
 775         int ret, netshown;
 776
 777         cl.oldtime = cl.time;
 778         cl.time += cl.frametime;
 779
 780         netshown = false;
 781         do
 782         {
 783                 ret = CL_GetMessage ();
 784                 if (ret == -1)
 785                         Host_Error ("CL_ReadFromServer: lost server connection");
 786                 if (!ret)
 787                         break;
 788
 789                 cl.last_received_message = realtime;
 790
 791                 if (cl_shownet.integer)
 792                         netshown = true;
 793
 794                 CL_ParseServerMessage ();
 795         }
 796         while (ret && cls.state == ca_connected);
 797
 798         if (netshown)
 799                 Con_Printf ("\n");
 800
 801         r_refdef.numentities = 0;
 802         if (cls.state == ca_connected && cl.worldmodel)
 803         {
 804                 CL_RelinkEntities ();
 805
 806                 // run cgame code (which can add more entities)
 807                 CL_CGVM_Frame();
 808         }
 809
 810 //
 811 // bring the links up to date
 812 //
 813         return 0;
 814 }
 815
 816 /*
 817 =================
 818 CL_SendCmd
 819 =================
 820 */
 821 void CL_SendCmd (void)
 822 {
 823         usercmd_t               cmd;
 824
 825         if (cls.state != ca_connected)
 826                 return;
 827
 828         if (cls.signon == SIGNONS)
 829         {
 830         // get basic movement from keyboard
 831                 CL_BaseMove (&cmd);
 832
 833         // allow mice or other external controllers to add to the move
 834                 IN_Move (&cmd);
 835
 836         // send the unreliable message
 837                 CL_SendMove (&cmd);
 838         }
 839         else
 840         {
 841                 // LordHavoc: fix for NAT routing of netquake:
 842                 // bounce back a clc_nop message to the newly allocated server port,
 843                 // to establish a routing connection for incoming frames,
 844                 // the server waits for this before sending anything
 845                 if (realtime > cl.sendnoptime)
 846                 {
 847                         Con_DPrintf("sending clc_nop to get server's attention\n");
 848                         cl.sendnoptime = realtime + 3;
 849                         MSG_WriteByte(&cls.message, clc_nop);
 850                 }
 851         }
 852
 853         if (cls.demoplayback)
 854         {
 855                 SZ_Clear (&cls.message);
 856                 return;
 857         }
 858
 859 // send the reliable message
 860         if (!cls.message.cursize)
 861                 return;         // no message at all
 862
 863         if (!NET_CanSendMessage (cls.netcon))
 864         {
 865                 Con_DPrintf ("CL_WriteToServer: can't send\n");
 866                 return;
 867         }
 868
 869         if (NET_SendMessage (cls.netcon, &cls.message) == -1)
 870                 Host_Error ("CL_WriteToServer: lost server connection");
 871
 872         SZ_Clear (&cls.message);
 873 }
 874
 875 // LordHavoc: pausedemo command
 876 static void CL_PauseDemo_f (void)
 877 {
 878         cls.demopaused = !cls.demopaused;
 879         if (cls.demopaused)
 880                 Con_Printf("Demo paused\n");
 881         else
 882                 Con_Printf("Demo unpaused\n");
 883 }
 884
 885 /*
 886 ======================
 887 CL_PModel_f
 888 LordHavoc: Intended for Nehahra, I personally think this is dumb, but Mindcrime won't listen.
 889 ======================
 890 */
 891 static void CL_PModel_f (void)
 892 {
 893         int i;
 894         eval_t *val;
 895
 896         if (Cmd_Argc () == 1)
 897         {
 898                 Con_Printf ("\"pmodel\" is \"%s\"\n", cl_pmodel.string);
 899                 return;
 900         }
 901         i = atoi(Cmd_Argv(1));
 902
 903         if (cmd_source == src_command)
 904         {
 905                 if (cl_pmodel.integer == i)
 906                         return;
 907                 Cvar_SetValue ("_cl_pmodel", i);
 908                 if (cls.state == ca_connected)
 909                         Cmd_ForwardToServer ();
 910                 return;
 911         }
 912
 913         host_client->pmodel = i;
 914         if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_pmodel)))
 915                 val->_float = i;
 916 }
 917
 918 /*
 919 ======================
 920 CL_Fog_f
 921 ======================
 922 */
 923 static void CL_Fog_f (void)
 924 {
 925         if (Cmd_Argc () == 1)
 926         {
 927                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
 928                 return;
 929         }
 930         fog_density = atof(Cmd_Argv(1));
 931         fog_red = atof(Cmd_Argv(2));
 932         fog_green = atof(Cmd_Argv(3));
 933         fog_blue = atof(Cmd_Argv(4));
 934 }
 935
 936 /*
 937 =================
 938 CL_Init
 939 =================
 940 */
 941 void CL_Init (void)
 942 {
 943         cl_scores_mempool = Mem_AllocPool("client player info");
 944
 945         cl_refdef_mempool = Mem_AllocPool("refdef");
 946         memset(&r_refdef, 0, sizeof(r_refdef));
 947         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * MAX_VISEDICTS);
 948
 949         SZ_Alloc (&cls.message, 1024, "cls.message");
 950
 951         CL_InitInput ();
 952         CL_InitTEnts ();
 953
 954 //
 955 // register our commands
 956 //
 957         Cvar_RegisterVariable (&cl_name);
 958         Cvar_RegisterVariable (&cl_color);
 959         if (gamemode == GAME_NEHAHRA)
 960                 Cvar_RegisterVariable (&cl_pmodel);
 961         Cvar_RegisterVariable (&cl_upspeed);
 962         Cvar_RegisterVariable (&cl_forwardspeed);
 963         Cvar_RegisterVariable (&cl_backspeed);
 964         Cvar_RegisterVariable (&cl_sidespeed);
 965         Cvar_RegisterVariable (&cl_movespeedkey);
 966         Cvar_RegisterVariable (&cl_yawspeed);
 967         Cvar_RegisterVariable (&cl_pitchspeed);
 968         Cvar_RegisterVariable (&cl_anglespeedkey);
 969         Cvar_RegisterVariable (&cl_shownet);
 970         Cvar_RegisterVariable (&cl_nolerp);
 971         Cvar_RegisterVariable (&lookspring);
 972         Cvar_RegisterVariable (&lookstrafe);
 973         Cvar_RegisterVariable (&sensitivity);
 974         Cvar_RegisterVariable (&freelook);
 975
 976         Cvar_RegisterVariable (&m_pitch);
 977         Cvar_RegisterVariable (&m_yaw);
 978         Cvar_RegisterVariable (&m_forward);
 979         Cvar_RegisterVariable (&m_side);
 980
 981         Cvar_RegisterVariable (&cl_itembobspeed);
 982         Cvar_RegisterVariable (&cl_itembobheight);
 983
 984         Cmd_AddCommand ("entities", CL_PrintEntities_f);
 985         Cmd_AddCommand ("bitprofile", CL_BitProfile_f);
 986         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
 987         Cmd_AddCommand ("record", CL_Record_f);
 988         Cmd_AddCommand ("stop", CL_Stop_f);
 989         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
 990         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
 991
 992         Cmd_AddCommand ("fog", CL_Fog_f);
 993
 994         // LordHavoc: added pausedemo
 995         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
 996         if (gamemode == GAME_NEHAHRA)
 997                 Cmd_AddCommand ("pmodel", CL_PModel_f);
 998
 999         Cvar_RegisterVariable(&cl_draweffects);
1000
1001         CL_Parse_Init();
1002         CL_Particles_Init();
1003         CL_Screen_Init();
1004         CL_CGVM_Init();
1005 }