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         CL_Decals_Clear();
 112         // LordHavoc: have to set up the baseline info for alpha and other stuff
 113         for (i = 0;i < MAX_EDICTS;i++)
 114         {
 115                 ClearStateToDefault(&cl_entities[i].state_baseline);
 116                 ClearStateToDefault(&cl_entities[i].state_previous);
 117                 ClearStateToDefault(&cl_entities[i].state_current);
 118         }
 119 }
 120
 121 void CL_LerpUpdate(entity_t *e)
 122 {
 123         entity_persistent_t *p;
 124         entity_render_t *r;
 125         p = &e->persistent;
 126         r = &e->render;
 127
 128         if (p->modelindex != e->state_current.modelindex)
 129         {
 130                 // reset all interpolation information
 131                 p->modelindex = e->state_current.modelindex;
 132                 p->frame1 = p->frame2 = e->state_current.frame;
 133                 p->frame1time = p->frame2time = cl.time;
 134                 p->framelerp = 1;
 135         }
 136         else if (p->frame2 != e->state_current.frame)
 137         {
 138                 // transition to new frame
 139                 p->frame1 = p->frame2;
 140                 p->frame1time = p->frame2time;
 141                 p->frame2 = e->state_current.frame;
 142                 p->frame2time = cl.time;
 143                 p->framelerp = 0;
 144         }
 145         else
 146         {
 147                 // update transition
 148                 p->framelerp = (cl.time - p->frame2time) * 10;
 149                 p->framelerp = bound(0, p->framelerp, 1);
 150         }
 151
 152         r->model = cl.model_precache[e->state_current.modelindex];
 153         Mod_CheckLoaded(r->model);
 154         r->frame = e->state_current.frame;
 155         r->frame1 = p->frame1;
 156         r->frame2 = p->frame2;
 157         r->framelerp = p->framelerp;
 158         r->frame1time = p->frame1time;
 159         r->frame2time = p->frame2time;
 160 }
 161
 162 /*
 163 =====================
 164 CL_Disconnect
 165
 166 Sends a disconnect message to the server
 167 This is also called on Host_Error, so it shouldn't cause any errors
 168 =====================
 169 */
 170 void CL_Disconnect (void)
 171 {
 172         if (cls.state == ca_dedicated)
 173                 return;
 174
 175 // stop sounds (especially looping!)
 176         S_StopAllSounds (true);
 177
 178         // clear contents blends
 179         cl.cshifts[0].percent = 0;
 180         cl.cshifts[1].percent = 0;
 181         cl.cshifts[2].percent = 0;
 182         cl.cshifts[3].percent = 0;
 183
 184         cl.worldmodel = NULL;
 185
 186         if (cls.demoplayback)
 187                 CL_StopPlayback ();
 188         else if (cls.state == ca_connected)
 189         {
 190                 if (cls.demorecording)
 191                         CL_Stop_f ();
 192
 193                 Con_DPrintf ("Sending clc_disconnect\n");
 194                 SZ_Clear (&cls.message);
 195                 MSG_WriteByte (&cls.message, clc_disconnect);
 196                 NET_SendUnreliableMessage (cls.netcon, &cls.message);
 197                 SZ_Clear (&cls.message);
 198                 NET_Close (cls.netcon);
 199                 // if running a local server, shut it down
 200                 if (sv.active)
 201                         Host_ShutdownServer(false);
 202         }
 203         cls.state = ca_disconnected;
 204
 205         cls.demoplayback = cls.timedemo = false;
 206         cls.signon = 0;
 207 }
 208
 209 void CL_Disconnect_f (void)
 210 {
 211         CL_Disconnect ();
 212         if (sv.active)
 213                 Host_ShutdownServer (false);
 214 }
 215
 216
 217
 218
 219 /*
 220 =====================
 221 CL_EstablishConnection
 222
 223 Host should be either "local" or a net address to be passed on
 224 =====================
 225 */
 226 void CL_EstablishConnection (char *host)
 227 {
 228         if (cls.state == ca_dedicated)
 229                 return;
 230
 231         if (cls.demoplayback)
 232                 return;
 233
 234         CL_Disconnect ();
 235
 236         cls.netcon = NET_Connect (host);
 237         if (!cls.netcon)
 238                 Host_Error ("CL_Connect: connect failed\n");
 239         Con_DPrintf ("CL_EstablishConnection: connected to %s\n", host);
 240
 241         cls.demonum = -1;                       // not in the demo loop now
 242         cls.state = ca_connected;
 243         cls.signon = 0;                         // need all the signon messages before playing
 244 }
 245
 246 /*
 247 ==============
 248 CL_PrintEntities_f
 249 ==============
 250 */
 251 static void CL_PrintEntities_f (void)
 252 {
 253         entity_t        *ent;
 254         int                     i, j;
 255         char            name[32];
 256
 257         for (i = 0, ent = cl_entities;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
 258         {
 259                 if (!ent->state_current.active)
 260                         continue;
 261                 if (!ent->render.model)
 262                         continue;
 263
 264                 Con_Printf ("%3i:", i);
 265                 if (!ent->render.model)
 266                 {
 267                         Con_Printf ("EMPTY\n");
 268                         continue;
 269                 }
 270                 strncpy(name, ent->render.model->name, 25);
 271                 name[25] = 0;
 272                 for (j = strlen(name);j < 25;j++)
 273                         name[j] = ' ';
 274                 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);
 275         }
 276 }
 277
 278
 279 /*
 280 ===============
 281 CL_LerpPoint
 282
 283 Determines the fraction between the last two messages that the objects
 284 should be put at.
 285 ===============
 286 */
 287 static float CL_LerpPoint (void)
 288 {
 289         float   f, frac;
 290
 291         f = cl.mtime[0] - cl.mtime[1];
 292
 293         // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
 294         if (!f || cl_nolerp.integer || cls.timedemo || (sv.active && svs.maxclients == 1))
 295         {
 296                 cl.time = cl.mtime[0];
 297                 return 1;
 298         }
 299
 300         if (f > 0.1)
 301         {       // dropped packet, or start of demo
 302                 cl.mtime[1] = cl.mtime[0] - 0.1;
 303                 f = 0.1;
 304         }
 305         frac = (cl.time - cl.mtime[1]) / f;
 306 //      Con_Printf ("frac: %f\n",frac);
 307         if (frac < 0)
 308         {
 309                 if (frac < -0.01)
 310                 {
 311                         cl.time = cl.mtime[1];
 312 //                      Con_Printf ("low frac\n");
 313                 }
 314                 frac = 0;
 315         }
 316         else if (frac > 1)
 317         {
 318                 if (frac > 1.01)
 319                 {
 320                         cl.time = cl.mtime[0];
 321 //                      Con_Printf ("high frac\n");
 322                 }
 323                 frac = 1;
 324         }
 325
 326         return frac;
 327 }
 328
 329 static void CL_RelinkStaticEntities(void)
 330 {
 331         int i;
 332         for (i = 0;i < cl.num_statics && r_refdef.numentities < MAX_VISEDICTS;i++)
 333         {
 334                 Mod_CheckLoaded(cl_static_entities[i].render.model);
 335                 r_refdef.entities[r_refdef.numentities++] = &cl_static_entities[i].render;
 336         }
 337 }
 338
 339 /*
 340 ===============
 341 CL_RelinkEntities
 342 ===============
 343 */
 344 static void CL_RelinkNetworkEntities()
 345 {
 346         entity_t        *ent;
 347         int                     i, glowcolor, effects;
 348         float           f, d, bobjrotate, bobjoffset, dlightradius, glowsize, lerp;
 349         vec3_t          oldorg, neworg, delta, dlightcolor;
 350
 351         bobjrotate = ANGLEMOD(100*cl.time);
 352         if (cl_itembobheight.value)
 353                 bobjoffset = (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
 354         else
 355                 bobjoffset = 0;
 356
 357         CL_RelinkStaticEntities();
 358
 359 // start on the entity after the world
 360         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
 361         {
 362                 // if the object wasn't included in the latest packet, remove it
 363                 if (!ent->state_current.active)
 364                         continue;
 365
 366                 VectorCopy(ent->persistent.trail_origin, oldorg);
 367
 368                 if (!ent->state_previous.active)
 369                 {
 370                         // only one state available
 371                         lerp = 1;
 372                         VectorCopy (ent->state_current.origin, oldorg); // skip trails
 373                         VectorCopy (ent->state_current.origin, neworg);
 374                         VectorCopy (ent->state_current.angles, ent->render.angles);
 375
 376                         /*
 377                         // monster interpolation
 378                         ent->persistent.steplerptime = 0;
 379                         VectorCopy(ent->state_current.origin, ent->persistent.stepoldorigin);
 380                         VectorCopy(ent->state_current.angles, ent->persistent.stepoldangles);
 381                         VectorCopy(ent->state_current.origin, ent->persistent.steporigin);
 382                         VectorCopy(ent->state_current.angles, ent->persistent.stepangles);
 383                         */
 384                 }
 385                 /*
 386                 else if ((ent->state_current.flags & ent->state_previous.flags) & ENTFLAG_STEP)
 387                 {
 388                         if (ent->state_current.origin[0] != ent->persistent.steporigin[0]
 389                          || ent->state_current.origin[1] != ent->persistent.steporigin[1]
 390                          || ent->state_current.origin[2] != ent->persistent.steporigin[2]
 391                          || ent->state_current.angles[0] != ent->persistent.stepangles[0]
 392                          || ent->state_current.angles[1] != ent->persistent.stepangles[1]
 393                          || ent->state_current.angles[2] != ent->persistent.stepangles[2])
 394                         {
 395                                 // update lerp positions
 396                                 ent->clientpersistent.steplerptime = sv.time;
 397                                 VectorCopy(ent->steporigin, ent->stepoldorigin);
 398                                 VectorCopy(ent->stepangles, ent->stepoldangles);
 399                                 VectorCopy(ent->v.origin, ent->steporigin);
 400                                 VectorCopy(ent->v.angles, ent->stepangles);
 401                         }
 402                         lerp = (cl.time - ent->persistent.steplerptime) * 10.0;
 403                         if (lerp < 1)
 404                         {
 405                                 // origin
 406                                 VectorSubtract(ent->persistent.steporigin, ent->persistent.stepoldorigin, delta);
 407                                 VectorMA(ent->persistent.stepoldorigin, lerp, delta, neworg);
 408
 409                                 // angles
 410                                 VectorSubtract(ent->persistent.stepangles, ent->persistent.stepoldangles, delta);
 411                                 // choose shortest rotate (to avoid 'spin around' situations)
 412                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 413                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 414                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 415                                 VectorMA(ent->stepoldangles, lerp, delta, ent->render.angles);
 416                         }
 417                         else
 418                         {
 419                                 VectorCopy(ent->persistent.steporigin, neworg);
 420                                 VectorCopy(ent->persistent.stepangles, ent->render.angles);
 421                         }
 422                 }
 423                 */
 424                 else
 425                 {
 426                         /*
 427                         // monster interpolation
 428                         ent->persistent.steplerptime = 0;
 429                         VectorCopy(ent->state_current.origin, ent->persistent.stepoldorigin);
 430                         VectorCopy(ent->state_current.angles, ent->persistent.stepoldangles);
 431                         VectorCopy(ent->state_current.origin, ent->persistent.steporigin);
 432                         VectorCopy(ent->state_current.angles, ent->persistent.stepangles);
 433                         */
 434
 435                         // if the delta is large, assume a teleport and don't lerp
 436                         VectorSubtract(ent->state_current.origin, ent->state_previous.origin, delta);
 437                         // LordHavoc: increased tolerance from 100 to 200, and now to 1000
 438                         if ((sv.active && svs.maxclients == 1 && !(ent->state_current.flags & RENDER_STEP)) || cls.timedemo || DotProduct(delta, delta) > 1000*1000 || cl_nolerp.integer)
 439                                 lerp = 1;
 440                         else
 441                         {
 442                                 f = ent->state_current.time - ent->state_previous.time;
 443                                 if (f > 0)
 444                                         lerp = (cl.time - ent->state_previous.time) / f;
 445                                 else
 446                                         lerp = 1;
 447                         }
 448                         if (lerp >= 1)
 449                         {
 450                                 // no interpolation
 451                                 VectorCopy (ent->state_current.origin, neworg);
 452                                 VectorCopy (ent->state_current.angles, ent->render.angles);
 453                         }
 454                         else
 455                         {
 456                                 // interpolate the origin and angles
 457                                 VectorMA(ent->state_previous.origin, lerp, delta, neworg);
 458                                 VectorSubtract(ent->state_current.angles, ent->state_previous.angles, delta);
 459                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 460                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 461                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 462                                 VectorMA(ent->state_previous.angles, lerp, delta, ent->render.angles);
 463                         }
 464                 }
 465
 466                 VectorCopy (neworg, ent->persistent.trail_origin);
 467                 // persistent.modelindex will be updated by CL_LerpUpdate
 468                 if (ent->state_current.modelindex != ent->persistent.modelindex)
 469                         VectorCopy(neworg, oldorg);
 470
 471                 VectorCopy (neworg, ent->render.origin);
 472                 ent->render.flags = ent->state_current.flags;
 473                 ent->render.effects = effects = ent->state_current.effects;
 474                 if (cl.scores == NULL || !ent->state_current.colormap)
 475                         ent->render.colormap = -1; // no special coloring
 476                 else
 477                         ent->render.colormap = cl.scores[ent->state_current.colormap - 1].colors; // color it
 478                 ent->render.skinnum = ent->state_current.skin;
 479                 ent->render.alpha = ent->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
 480                 ent->render.scale = ent->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
 481
 482                 // update interpolation info
 483                 CL_LerpUpdate(ent);
 484
 485                 // handle effects now...
 486                 dlightradius = 0;
 487                 dlightcolor[0] = 0;
 488                 dlightcolor[1] = 0;
 489                 dlightcolor[2] = 0;
 490
 491                 // LordHavoc: if the entity has no effects, don't check each
 492                 if (effects)
 493                 {
 494                         if (effects & EF_BRIGHTFIELD)
 495                                 CL_EntityParticles (ent);
 496                         if (effects & EF_MUZZLEFLASH)
 497                         {
 498                                 vec3_t v, v2;
 499
 500                                 AngleVectors (ent->render.angles, v, NULL, NULL);
 501
 502                                 v2[0] = v[0] * 18 + neworg[0];
 503                                 v2[1] = v[1] * 18 + neworg[1];
 504                                 v2[2] = v[2] * 18 + neworg[2] + 16;
 505                                 TraceLine(neworg, v2, v, NULL, 0);
 506
 507                                 CL_AllocDlight (NULL, v, 100, 1, 1, 1, 0, 0.1);
 508                         }
 509                         if (effects & EF_DIMLIGHT)
 510                         {
 511                                 dlightcolor[0] += 200.0f;
 512                                 dlightcolor[1] += 200.0f;
 513                                 dlightcolor[2] += 200.0f;
 514                         }
 515                         if (effects & EF_BRIGHTLIGHT)
 516                         {
 517                                 dlightcolor[0] += 400.0f;
 518                                 dlightcolor[1] += 400.0f;
 519                                 dlightcolor[2] += 400.0f;
 520                         }
 521                         // LordHavoc: added EF_RED and EF_BLUE
 522                         if (effects & EF_RED) // red
 523                         {
 524                                 dlightcolor[0] += 200.0f;
 525                                 dlightcolor[1] +=  20.0f;
 526                                 dlightcolor[2] +=  20.0f;
 527                         }
 528                         if (effects & EF_BLUE) // blue
 529                         {
 530                                 dlightcolor[0] +=  20.0f;
 531                                 dlightcolor[1] +=  20.0f;
 532                                 dlightcolor[2] += 200.0f;
 533                         }
 534                         if (effects & EF_FLAME)
 535                         {
 536                                 if (ent->render.model)
 537                                 {
 538                                         vec3_t mins, maxs;
 539                                         int temp;
 540                                         if (ent->render.angles[0] || ent->render.angles[2])
 541                                         {
 542                                                 VectorAdd(neworg, ent->render.model->rotatedmins, mins);
 543                                                 VectorAdd(neworg, ent->render.model->rotatedmaxs, maxs);
 544                                         }
 545                                         else if (ent->render.angles[1])
 546                                         {
 547                                                 VectorAdd(neworg, ent->render.model->yawmins, mins);
 548                                                 VectorAdd(neworg, ent->render.model->yawmaxs, maxs);
 549                                         }
 550                                         else
 551                                         {
 552                                                 VectorAdd(neworg, ent->render.model->normalmins, mins);
 553                                                 VectorAdd(neworg, ent->render.model->normalmaxs, maxs);
 554                                         }
 555                                         // how many flames to make
 556                                         temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
 557                                         CL_FlameCube(mins, maxs, temp);
 558                                 }
 559                                 d = lhrandom(200, 250);
 560                                 dlightcolor[0] += d * 1.0f;
 561                                 dlightcolor[1] += d * 0.7f;
 562                                 dlightcolor[2] += d * 0.3f;
 563                         }
 564                 }
 565
 566                 // LordHavoc: if the model has no flags, don't check each
 567                 if (ent->render.model && ent->render.model->flags)
 568                 {
 569                         if (ent->render.model->flags & EF_ROTATE)
 570                         {
 571                                 ent->render.angles[1] = bobjrotate;
 572                                 ent->render.origin[2] += bobjoffset;
 573                         }
 574                         // only do trails if present in the previous frame as well
 575                         if (ent->state_previous.active)
 576                         {
 577                                 if (ent->render.model->flags & EF_GIB)
 578                                         CL_RocketTrail (oldorg, neworg, 2, ent);
 579                                 else if (ent->render.model->flags & EF_ZOMGIB)
 580                                         CL_RocketTrail (oldorg, neworg, 4, ent);
 581                                 else if (ent->render.model->flags & EF_TRACER)
 582                                         CL_RocketTrail (oldorg, neworg, 3, ent);
 583                                 else if (ent->render.model->flags & EF_TRACER2)
 584                                         CL_RocketTrail (oldorg, neworg, 5, ent);
 585                                 else if (ent->render.model->flags & EF_ROCKET)
 586                                 {
 587                                         CL_RocketTrail (oldorg, ent->render.origin, 0, ent);
 588                                         // LordHavoc: changed from 200, 160, 80 to 250, 200, 100
 589                                         dlightcolor[0] += 250.0f;
 590                                         dlightcolor[1] += 200.0f;
 591                                         dlightcolor[2] += 100.0f;
 592                                 }
 593                                 else if (ent->render.model->flags & EF_GRENADE)
 594                                 {
 595                                         if (ent->render.alpha == -1) // LordHavoc: Nehahra dem compatibility
 596                                                 CL_RocketTrail (oldorg, neworg, 7, ent);
 597                                         else
 598                                                 CL_RocketTrail (oldorg, neworg, 1, ent);
 599                                 }
 600                                 else if (ent->render.model->flags & EF_TRACER3)
 601                                         CL_RocketTrail (oldorg, neworg, 6, ent);
 602                         }
 603                 }
 604                 // LordHavoc: customizable glow
 605                 glowsize = ent->state_current.glowsize * 4.0f; // FIXME: interpolate?
 606                 glowcolor = ent->state_current.glowcolor;
 607                 if (glowsize)
 608                 {
 609                         byte *tempcolor = (byte *)&d_8to24table[glowcolor];
 610                         dlightcolor[0] += glowsize * tempcolor[0] * (1.0f / 255.0f);
 611                         dlightcolor[1] += glowsize * tempcolor[1] * (1.0f / 255.0f);
 612                         dlightcolor[2] += glowsize * tempcolor[2] * (1.0f / 255.0f);
 613                 }
 614                 // LordHavoc: customizable trail
 615                 if (ent->render.flags & RENDER_GLOWTRAIL)
 616                         CL_RocketTrail2 (oldorg, neworg, glowcolor, ent);
 617
 618                 if (dlightcolor[0] || dlightcolor[1] || dlightcolor[2])
 619                 {
 620                         vec3_t vec;
 621                         dlightradius = VectorLength(dlightcolor);
 622                         d = 1.0f / dlightradius;
 623                         VectorCopy(neworg, vec);
 624                         // hack to make glowing player light shine on their gun
 625                         if (i == cl.viewentity && !chase_active.integer)
 626                                 vec[2] += 30;
 627                         CL_AllocDlight (&ent->render, vec, dlightradius, dlightcolor[0] * d, dlightcolor[1] * d, dlightcolor[2] * d, 0, 0);
 628                 }
 629
 630                 if (chase_active.integer)
 631                 {
 632                         if (ent->render.flags & RENDER_VIEWMODEL)
 633                                 continue;
 634                 }
 635                 else
 636                 {
 637                         if (i == cl.viewentity || (ent->render.flags & RENDER_EXTERIORMODEL))
 638                                 continue;
 639                 }
 640
 641                 if (ent->render.model == NULL)
 642                         continue;
 643                 if (effects & EF_NODRAW)
 644                         continue;
 645                 if (r_refdef.numentities < MAX_VISEDICTS)
 646                         r_refdef.entities[r_refdef.numentities++] = &ent->render;
 647         }
 648 }
 649
 650 static void CL_LerpPlayerVelocity (void)
 651 {
 652         int i;
 653         float frac, d;
 654
 655         // fraction from previous network update to current
 656         frac = CL_LerpPoint ();
 657
 658         for (i = 0;i < 3;i++)
 659                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
 660
 661         if (cls.demoplayback)
 662         {
 663                 // interpolate the angles
 664                 for (i = 0;i < 3;i++)
 665                 {
 666                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
 667                         if (d > 180)
 668                                 d -= 360;
 669                         else if (d < -180)
 670                                 d += 360;
 671                         cl.viewangles[i] = cl.mviewangles[1][i] + frac*d;
 672                 }
 673         }
 674 }
 675
 676 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
 677 {
 678         int i;
 679         cl_effect_t *e;
 680         if (!modelindex) // sanity check
 681                 return;
 682         for (i = 0, e = cl_effect;i < MAX_EFFECTS;i++, e++)
 683         {
 684                 if (e->active)
 685                         continue;
 686                 e->active = true;
 687                 VectorCopy(org, e->origin);
 688                 e->modelindex = modelindex;
 689                 e->starttime = cl.time;
 690                 e->startframe = startframe;
 691                 e->endframe = startframe + framecount;
 692                 e->framerate = framerate;
 693
 694                 e->frame = 0;
 695                 e->frame1time = cl.time;
 696                 e->frame2time = cl.time;
 697                 break;
 698         }
 699 }
 700
 701 static void CL_RelinkEffects()
 702 {
 703         int i, intframe;
 704         cl_effect_t *e;
 705         entity_t *vis;
 706         float frame;
 707
 708         for (i = 0, e = cl_effect;i < MAX_EFFECTS;i++, e++)
 709         {
 710                 if (e->active)
 711                 {
 712                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
 713                         intframe = frame;
 714                         if (intframe < 0 || intframe >= e->endframe)
 715                         {
 716                                 e->active = false;
 717                                 memset(e, 0, sizeof(*e));
 718                                 continue;
 719                         }
 720
 721                         if (intframe != e->frame)
 722                         {
 723                                 e->frame = intframe;
 724                                 e->frame1time = e->frame2time;
 725                                 e->frame2time = cl.time;
 726                         }
 727
 728                         if ((vis = CL_NewTempEntity()))
 729                         {
 730                                 // interpolation stuff
 731                                 vis->render.frame1 = intframe;
 732                                 vis->render.frame2 = intframe + 1;
 733                                 if (vis->render.frame2 >= e->endframe)
 734                                         vis->render.frame2 = -1; // disappear
 735                                 vis->render.framelerp = frame - intframe;
 736                                 vis->render.frame1time = e->frame1time;
 737                                 vis->render.frame2time = e->frame2time;
 738
 739                                 // normal stuff
 740                                 VectorCopy(e->origin, vis->render.origin);
 741                                 vis->render.model = cl.model_precache[e->modelindex];
 742                                 vis->render.frame = vis->render.frame2;
 743                                 vis->render.colormap = -1; // no special coloring
 744                                 vis->render.scale = 1;
 745                                 vis->render.alpha = 1;
 746                         }
 747                 }
 748         }
 749 }
 750
 751 void CL_RelinkEntities (void)
 752 {
 753         r_refdef.numentities = 0;
 754
 755         CL_LerpPlayerVelocity();
 756         CL_RelinkNetworkEntities();
 757         CL_RelinkEffects();
 758         CL_MoveParticles();
 759         CL_UpdateDecals();
 760         CL_UpdateTEnts ();
 761 }
 762
 763
 764 /*
 765 ===============
 766 CL_ReadFromServer
 767
 768 Read all incoming data from the server
 769 ===============
 770 */
 771 int CL_ReadFromServer (void)
 772 {
 773         int ret, netshown;
 774
 775         cl.oldtime = cl.time;
 776         cl.time += cl.frametime;
 777
 778         netshown = false;
 779         do
 780         {
 781                 ret = CL_GetMessage ();
 782                 if (ret == -1)
 783                         Host_Error ("CL_ReadFromServer: lost server connection");
 784                 if (!ret)
 785                         break;
 786
 787                 cl.last_received_message = realtime;
 788
 789                 if (cl_shownet.integer)
 790                         netshown = true;
 791
 792                 CL_ParseServerMessage ();
 793         }
 794         while (ret && cls.state == ca_connected);
 795
 796         if (netshown)
 797                 Con_Printf ("\n");
 798
 799         CL_RelinkEntities ();
 800
 801 //
 802 // bring the links up to date
 803 //
 804         return 0;
 805 }
 806
 807 /*
 808 =================
 809 CL_SendCmd
 810 =================
 811 */
 812 void CL_SendCmd (void)
 813 {
 814         usercmd_t               cmd;
 815
 816         if (cls.state != ca_connected)
 817                 return;
 818
 819         if (cls.signon == SIGNONS)
 820         {
 821         // get basic movement from keyboard
 822                 CL_BaseMove (&cmd);
 823
 824         // allow mice or other external controllers to add to the move
 825                 IN_Move (&cmd);
 826
 827         // send the unreliable message
 828                 CL_SendMove (&cmd);
 829         }
 830
 831         if (cls.demoplayback)
 832         {
 833                 SZ_Clear (&cls.message);
 834                 return;
 835         }
 836
 837 // send the reliable message
 838         if (!cls.message.cursize)
 839                 return;         // no message at all
 840
 841         if (!NET_CanSendMessage (cls.netcon))
 842         {
 843                 Con_DPrintf ("CL_WriteToServer: can't send\n");
 844                 return;
 845         }
 846
 847         if (NET_SendMessage (cls.netcon, &cls.message) == -1)
 848                 Host_Error ("CL_WriteToServer: lost server connection");
 849
 850         SZ_Clear (&cls.message);
 851 }
 852
 853 // LordHavoc: pausedemo command
 854 static void CL_PauseDemo_f (void)
 855 {
 856         cls.demopaused = !cls.demopaused;
 857         if (cls.demopaused)
 858                 Con_Printf("Demo paused\n");
 859         else
 860                 Con_Printf("Demo unpaused\n");
 861 }
 862
 863 /*
 864 ======================
 865 CL_PModel_f
 866 LordHavoc: Intended for Nehahra, I personally think this is dumb, but Mindcrime won't listen.
 867 ======================
 868 */
 869 static void CL_PModel_f (void)
 870 {
 871         int i;
 872         eval_t *val;
 873
 874         if (Cmd_Argc () == 1)
 875         {
 876                 Con_Printf ("\"pmodel\" is \"%s\"\n", cl_pmodel.string);
 877                 return;
 878         }
 879         i = atoi(Cmd_Argv(1));
 880
 881         if (cmd_source == src_command)
 882         {
 883                 if (cl_pmodel.integer == i)
 884                         return;
 885                 Cvar_SetValue ("_cl_pmodel", i);
 886                 if (cls.state == ca_connected)
 887                         Cmd_ForwardToServer ();
 888                 return;
 889         }
 890
 891         host_client->pmodel = i;
 892         if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_pmodel)))
 893                 val->_float = i;
 894 }
 895
 896 /*
 897 ======================
 898 CL_Fog_f
 899 ======================
 900 */
 901 static void CL_Fog_f (void)
 902 {
 903         if (Cmd_Argc () == 1)
 904         {
 905                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
 906                 return;
 907         }
 908         fog_density = atof(Cmd_Argv(1));
 909         fog_red = atof(Cmd_Argv(2));
 910         fog_green = atof(Cmd_Argv(3));
 911         fog_blue = atof(Cmd_Argv(4));
 912 }
 913
 914 /*
 915 =================
 916 CL_Init
 917 =================
 918 */
 919 void CL_Init (void)
 920 {
 921         cl_scores_mempool = Mem_AllocPool("client player info");
 922
 923         cl_refdef_mempool = Mem_AllocPool("refdef");
 924         memset(&r_refdef, 0, sizeof(r_refdef));
 925         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * MAX_VISEDICTS);
 926
 927         SZ_Alloc (&cls.message, 1024, "cls.message");
 928
 929         CL_InitInput ();
 930         CL_InitTEnts ();
 931
 932 //
 933 // register our commands
 934 //
 935         Cvar_RegisterVariable (&cl_name);
 936         Cvar_RegisterVariable (&cl_color);
 937         if (gamemode == GAME_NEHAHRA)
 938                 Cvar_RegisterVariable (&cl_pmodel);
 939         Cvar_RegisterVariable (&cl_upspeed);
 940         Cvar_RegisterVariable (&cl_forwardspeed);
 941         Cvar_RegisterVariable (&cl_backspeed);
 942         Cvar_RegisterVariable (&cl_sidespeed);
 943         Cvar_RegisterVariable (&cl_movespeedkey);
 944         Cvar_RegisterVariable (&cl_yawspeed);
 945         Cvar_RegisterVariable (&cl_pitchspeed);
 946         Cvar_RegisterVariable (&cl_anglespeedkey);
 947         Cvar_RegisterVariable (&cl_shownet);
 948         Cvar_RegisterVariable (&cl_nolerp);
 949         Cvar_RegisterVariable (&lookspring);
 950         Cvar_RegisterVariable (&lookstrafe);
 951         Cvar_RegisterVariable (&sensitivity);
 952         Cvar_RegisterVariable (&freelook);
 953
 954         Cvar_RegisterVariable (&m_pitch);
 955         Cvar_RegisterVariable (&m_yaw);
 956         Cvar_RegisterVariable (&m_forward);
 957         Cvar_RegisterVariable (&m_side);
 958
 959         Cvar_RegisterVariable (&cl_itembobspeed);
 960         Cvar_RegisterVariable (&cl_itembobheight);
 961
 962         Cmd_AddCommand ("entities", CL_PrintEntities_f);
 963         Cmd_AddCommand ("bitprofile", CL_BitProfile_f);
 964         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
 965         Cmd_AddCommand ("record", CL_Record_f);
 966         Cmd_AddCommand ("stop", CL_Stop_f);
 967         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
 968         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
 969
 970         Cmd_AddCommand ("fog", CL_Fog_f);
 971
 972         // LordHavoc: added pausedemo
 973         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
 974         if (gamemode == GAME_NEHAHRA)
 975                 Cmd_AddCommand ("pmodel", CL_PModel_f);
 976
 977         Cvar_RegisterVariable(&cl_draweffects);
 978
 979         CL_Parse_Init();
 980         CL_Particles_Init();
 981         CL_Decals_Init();
 982         CL_Screen_Init();
 983 }