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         CL_CGVM_Clear();
 121 }
 122
 123 void CL_LerpUpdate(entity_t *e)
 124 {
 125         entity_persistent_t *p;
 126         entity_render_t *r;
 127         p = &e->persistent;
 128         r = &e->render;
 129
 130         if (p->modelindex != e->state_current.modelindex)
 131         {
 132                 // reset all interpolation information
 133                 p->modelindex = e->state_current.modelindex;
 134                 p->frame1 = p->frame2 = e->state_current.frame;
 135                 p->frame1time = p->frame2time = cl.time;
 136                 p->framelerp = 1;
 137         }
 138         else if (p->frame2 != e->state_current.frame)
 139         {
 140                 // transition to new frame
 141                 p->frame1 = p->frame2;
 142                 p->frame1time = p->frame2time;
 143                 p->frame2 = e->state_current.frame;
 144                 p->frame2time = cl.time;
 145                 p->framelerp = 0;
 146         }
 147         else
 148         {
 149                 // update transition
 150                 p->framelerp = (cl.time - p->frame2time) * 10;
 151                 p->framelerp = bound(0, p->framelerp, 1);
 152         }
 153
 154         r->model = cl.model_precache[e->state_current.modelindex];
 155         Mod_CheckLoaded(r->model);
 156         r->frame = e->state_current.frame;
 157         r->frame1 = p->frame1;
 158         r->frame2 = p->frame2;
 159         r->framelerp = p->framelerp;
 160         r->frame1time = p->frame1time;
 161         r->frame2time = p->frame2time;
 162 }
 163
 164 /*
 165 =====================
 166 CL_Disconnect
 167
 168 Sends a disconnect message to the server
 169 This is also called on Host_Error, so it shouldn't cause any errors
 170 =====================
 171 */
 172 void CL_Disconnect (void)
 173 {
 174         if (cls.state == ca_dedicated)
 175                 return;
 176
 177 // stop sounds (especially looping!)
 178         S_StopAllSounds (true);
 179
 180         // clear contents blends
 181         cl.cshifts[0].percent = 0;
 182         cl.cshifts[1].percent = 0;
 183         cl.cshifts[2].percent = 0;
 184         cl.cshifts[3].percent = 0;
 185
 186         cl.worldmodel = NULL;
 187
 188         if (cls.demoplayback)
 189                 CL_StopPlayback ();
 190         else if (cls.state == ca_connected)
 191         {
 192                 if (cls.demorecording)
 193                         CL_Stop_f ();
 194
 195                 Con_DPrintf ("Sending clc_disconnect\n");
 196                 SZ_Clear (&cls.message);
 197                 MSG_WriteByte (&cls.message, clc_disconnect);
 198                 NET_SendUnreliableMessage (cls.netcon, &cls.message);
 199                 SZ_Clear (&cls.message);
 200                 NET_Close (cls.netcon);
 201                 // if running a local server, shut it down
 202                 if (sv.active)
 203                         Host_ShutdownServer(false);
 204         }
 205         cls.state = ca_disconnected;
 206
 207         cls.demoplayback = cls.timedemo = false;
 208         cls.signon = 0;
 209 }
 210
 211 void CL_Disconnect_f (void)
 212 {
 213         CL_Disconnect ();
 214         if (sv.active)
 215                 Host_ShutdownServer (false);
 216 }
 217
 218
 219
 220
 221 /*
 222 =====================
 223 CL_EstablishConnection
 224
 225 Host should be either "local" or a net address to be passed on
 226 =====================
 227 */
 228 void CL_EstablishConnection (char *host)
 229 {
 230         if (cls.state == ca_dedicated)
 231                 return;
 232
 233         if (cls.demoplayback)
 234                 return;
 235
 236         CL_Disconnect ();
 237
 238         cls.netcon = NET_Connect (host);
 239         if (!cls.netcon)
 240                 Host_Error ("CL_Connect: connect failed\n");
 241         Con_DPrintf ("CL_EstablishConnection: connected to %s\n", host);
 242
 243         cls.demonum = -1;                       // not in the demo loop now
 244         cls.state = ca_connected;
 245         cls.signon = 0;                         // need all the signon messages before playing
 246 }
 247
 248 /*
 249 ==============
 250 CL_PrintEntities_f
 251 ==============
 252 */
 253 static void CL_PrintEntities_f (void)
 254 {
 255         entity_t        *ent;
 256         int                     i, j;
 257         char            name[32];
 258
 259         for (i = 0, ent = cl_entities;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
 260         {
 261                 if (!ent->state_current.active)
 262                         continue;
 263                 if (!ent->render.model)
 264                         continue;
 265
 266                 Con_Printf ("%3i:", i);
 267                 if (!ent->render.model)
 268                 {
 269                         Con_Printf ("EMPTY\n");
 270                         continue;
 271                 }
 272                 strncpy(name, ent->render.model->name, 25);
 273                 name[25] = 0;
 274                 for (j = strlen(name);j < 25;j++)
 275                         name[j] = ' ';
 276                 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);
 277         }
 278 }
 279
 280
 281 /*
 282 ===============
 283 CL_LerpPoint
 284
 285 Determines the fraction between the last two messages that the objects
 286 should be put at.
 287 ===============
 288 */
 289 static float CL_LerpPoint (void)
 290 {
 291         float   f, frac;
 292
 293         f = cl.mtime[0] - cl.mtime[1];
 294
 295         // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
 296         if (!f || cl_nolerp.integer || cls.timedemo || (sv.active && svs.maxclients == 1))
 297         {
 298                 cl.time = cl.mtime[0];
 299                 return 1;
 300         }
 301
 302         if (f > 0.1)
 303         {       // dropped packet, or start of demo
 304                 cl.mtime[1] = cl.mtime[0] - 0.1;
 305                 f = 0.1;
 306         }
 307         frac = (cl.time - cl.mtime[1]) / f;
 308 //      Con_Printf ("frac: %f\n",frac);
 309         if (frac < 0)
 310         {
 311                 if (frac < -0.01)
 312                 {
 313                         cl.time = cl.mtime[1];
 314 //                      Con_Printf ("low frac\n");
 315                 }
 316                 frac = 0;
 317         }
 318         else if (frac > 1)
 319         {
 320                 if (frac > 1.01)
 321                 {
 322                         cl.time = cl.mtime[0];
 323 //                      Con_Printf ("high frac\n");
 324                 }
 325                 frac = 1;
 326         }
 327
 328         return frac;
 329 }
 330
 331 static void CL_RelinkStaticEntities(void)
 332 {
 333         int i;
 334         for (i = 0;i < cl.num_statics && r_refdef.numentities < MAX_VISEDICTS;i++)
 335         {
 336                 Mod_CheckLoaded(cl_static_entities[i].render.model);
 337                 r_refdef.entities[r_refdef.numentities++] = &cl_static_entities[i].render;
 338         }
 339 }
 340
 341 /*
 342 ===============
 343 CL_RelinkEntities
 344 ===============
 345 */
 346 static void CL_RelinkNetworkEntities()
 347 {
 348         entity_t        *ent;
 349         int                     i, glowcolor, effects;
 350         float           f, d, bobjrotate, bobjoffset, dlightradius, glowsize, lerp;
 351         vec3_t          oldorg, neworg, delta, dlightcolor;
 352
 353         bobjrotate = ANGLEMOD(100*cl.time);
 354         if (cl_itembobheight.value)
 355                 bobjoffset = (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
 356         else
 357                 bobjoffset = 0;
 358
 359         CL_RelinkStaticEntities();
 360
 361 // start on the entity after the world
 362         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
 363         {
 364                 // if the object wasn't included in the latest packet, remove it
 365                 if (!ent->state_current.active)
 366                         continue;
 367
 368                 VectorCopy(ent->persistent.trail_origin, oldorg);
 369
 370                 if (!ent->state_previous.active)
 371                 {
 372                         // only one state available
 373                         lerp = 1;
 374                         VectorCopy (ent->state_current.origin, oldorg); // skip trails
 375                         VectorCopy (ent->state_current.origin, neworg);
 376                         VectorCopy (ent->state_current.angles, ent->render.angles);
 377
 378                         /*
 379                         // monster interpolation
 380                         ent->persistent.steplerptime = 0;
 381                         VectorCopy(ent->state_current.origin, ent->persistent.stepoldorigin);
 382                         VectorCopy(ent->state_current.angles, ent->persistent.stepoldangles);
 383                         VectorCopy(ent->state_current.origin, ent->persistent.steporigin);
 384                         VectorCopy(ent->state_current.angles, ent->persistent.stepangles);
 385                         */
 386                 }
 387                 /*
 388                 else if ((ent->state_current.flags & ent->state_previous.flags) & ENTFLAG_STEP)
 389                 {
 390                         if (ent->state_current.origin[0] != ent->persistent.steporigin[0]
 391                          || ent->state_current.origin[1] != ent->persistent.steporigin[1]
 392                          || ent->state_current.origin[2] != ent->persistent.steporigin[2]
 393                          || ent->state_current.angles[0] != ent->persistent.stepangles[0]
 394                          || ent->state_current.angles[1] != ent->persistent.stepangles[1]
 395                          || ent->state_current.angles[2] != ent->persistent.stepangles[2])
 396                         {
 397                                 // update lerp positions
 398                                 ent->clientpersistent.steplerptime = sv.time;
 399                                 VectorCopy(ent->steporigin, ent->stepoldorigin);
 400                                 VectorCopy(ent->stepangles, ent->stepoldangles);
 401                                 VectorCopy(ent->v.origin, ent->steporigin);
 402                                 VectorCopy(ent->v.angles, ent->stepangles);
 403                         }
 404                         lerp = (cl.time - ent->persistent.steplerptime) * 10.0;
 405                         if (lerp < 1)
 406                         {
 407                                 // origin
 408                                 VectorSubtract(ent->persistent.steporigin, ent->persistent.stepoldorigin, delta);
 409                                 VectorMA(ent->persistent.stepoldorigin, lerp, delta, neworg);
 410
 411                                 // angles
 412                                 VectorSubtract(ent->persistent.stepangles, ent->persistent.stepoldangles, delta);
 413                                 // choose shortest rotate (to avoid 'spin around' situations)
 414                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 415                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 416                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 417                                 VectorMA(ent->stepoldangles, lerp, delta, ent->render.angles);
 418                         }
 419                         else
 420                         {
 421                                 VectorCopy(ent->persistent.steporigin, neworg);
 422                                 VectorCopy(ent->persistent.stepangles, ent->render.angles);
 423                         }
 424                 }
 425                 */
 426                 else
 427                 {
 428                         /*
 429                         // monster interpolation
 430                         ent->persistent.steplerptime = 0;
 431                         VectorCopy(ent->state_current.origin, ent->persistent.stepoldorigin);
 432                         VectorCopy(ent->state_current.angles, ent->persistent.stepoldangles);
 433                         VectorCopy(ent->state_current.origin, ent->persistent.steporigin);
 434                         VectorCopy(ent->state_current.angles, ent->persistent.stepangles);
 435                         */
 436
 437                         // if the delta is large, assume a teleport and don't lerp
 438                         VectorSubtract(ent->state_current.origin, ent->state_previous.origin, delta);
 439                         // LordHavoc: increased tolerance from 100 to 200, and now to 1000
 440                         if ((sv.active && svs.maxclients == 1 && !(ent->state_current.flags & RENDER_STEP)) || cls.timedemo || DotProduct(delta, delta) > 1000*1000 || cl_nolerp.integer)
 441                                 lerp = 1;
 442                         else
 443                         {
 444                                 f = ent->state_current.time - ent->state_previous.time;
 445                                 if (f > 0)
 446                                         lerp = (cl.time - ent->state_previous.time) / f;
 447                                 else
 448                                         lerp = 1;
 449                         }
 450                         if (lerp >= 1)
 451                         {
 452                                 // no interpolation
 453                                 VectorCopy (ent->state_current.origin, neworg);
 454                                 VectorCopy (ent->state_current.angles, ent->render.angles);
 455                         }
 456                         else
 457                         {
 458                                 // interpolate the origin and angles
 459                                 VectorMA(ent->state_previous.origin, lerp, delta, neworg);
 460                                 VectorSubtract(ent->state_current.angles, ent->state_previous.angles, delta);
 461                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 462                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 463                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 464                                 VectorMA(ent->state_previous.angles, lerp, delta, ent->render.angles);
 465                         }
 466                 }
 467
 468                 VectorCopy (neworg, ent->persistent.trail_origin);
 469                 // persistent.modelindex will be updated by CL_LerpUpdate
 470                 if (ent->state_current.modelindex != ent->persistent.modelindex)
 471                         VectorCopy(neworg, oldorg);
 472
 473                 VectorCopy (neworg, ent->render.origin);
 474                 ent->render.flags = ent->state_current.flags;
 475                 ent->render.effects = effects = ent->state_current.effects;
 476                 if (cl.scores == NULL || !ent->state_current.colormap)
 477                         ent->render.colormap = -1; // no special coloring
 478                 else
 479                         ent->render.colormap = cl.scores[ent->state_current.colormap - 1].colors; // color it
 480                 ent->render.skinnum = ent->state_current.skin;
 481                 ent->render.alpha = ent->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
 482                 ent->render.scale = ent->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
 483
 484                 // update interpolation info
 485                 CL_LerpUpdate(ent);
 486
 487                 // handle effects now...
 488                 dlightradius = 0;
 489                 dlightcolor[0] = 0;
 490                 dlightcolor[1] = 0;
 491                 dlightcolor[2] = 0;
 492
 493                 // LordHavoc: if the entity has no effects, don't check each
 494                 if (effects)
 495                 {
 496                         if (effects & EF_BRIGHTFIELD)
 497                                 CL_EntityParticles (ent);
 498                         if (effects & EF_MUZZLEFLASH)
 499                         {
 500                                 vec3_t v, v2;
 501
 502                                 AngleVectors (ent->render.angles, v, NULL, NULL);
 503
 504                                 v2[0] = v[0] * 18 + neworg[0];
 505                                 v2[1] = v[1] * 18 + neworg[1];
 506                                 v2[2] = v[2] * 18 + neworg[2] + 16;
 507                                 TraceLine(neworg, v2, v, NULL, 0, true);
 508
 509                                 CL_AllocDlight (NULL, v, 100, 1, 1, 1, 0, 0.1);
 510                         }
 511                         if (effects & EF_DIMLIGHT)
 512                         {
 513                                 dlightcolor[0] += 200.0f;
 514                                 dlightcolor[1] += 200.0f;
 515                                 dlightcolor[2] += 200.0f;
 516                         }
 517                         if (effects & EF_BRIGHTLIGHT)
 518                         {
 519                                 dlightcolor[0] += 400.0f;
 520                                 dlightcolor[1] += 400.0f;
 521                                 dlightcolor[2] += 400.0f;
 522                         }
 523                         // LordHavoc: added EF_RED and EF_BLUE
 524                         if (effects & EF_RED) // red
 525                         {
 526                                 dlightcolor[0] += 200.0f;
 527                                 dlightcolor[1] +=  20.0f;
 528                                 dlightcolor[2] +=  20.0f;
 529                         }
 530                         if (effects & EF_BLUE) // blue
 531                         {
 532                                 dlightcolor[0] +=  20.0f;
 533                                 dlightcolor[1] +=  20.0f;
 534                                 dlightcolor[2] += 200.0f;
 535                         }
 536                         if (effects & EF_FLAME)
 537                         {
 538                                 if (ent->render.model)
 539                                 {
 540                                         vec3_t mins, maxs;
 541                                         int temp;
 542                                         if (ent->render.angles[0] || ent->render.angles[2])
 543                                         {
 544                                                 VectorAdd(neworg, ent->render.model->rotatedmins, mins);
 545                                                 VectorAdd(neworg, ent->render.model->rotatedmaxs, maxs);
 546                                         }
 547                                         else if (ent->render.angles[1])
 548                                         {
 549                                                 VectorAdd(neworg, ent->render.model->yawmins, mins);
 550                                                 VectorAdd(neworg, ent->render.model->yawmaxs, maxs);
 551                                         }
 552                                         else
 553                                         {
 554                                                 VectorAdd(neworg, ent->render.model->normalmins, mins);
 555                                                 VectorAdd(neworg, ent->render.model->normalmaxs, maxs);
 556                                         }
 557                                         // how many flames to make
 558                                         temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
 559                                         CL_FlameCube(mins, maxs, temp);
 560                                 }
 561                                 d = lhrandom(200, 250);
 562                                 dlightcolor[0] += d * 1.0f;
 563                                 dlightcolor[1] += d * 0.7f;
 564                                 dlightcolor[2] += d * 0.3f;
 565                         }
 566                 }
 567
 568                 // LordHavoc: if the model has no flags, don't check each
 569                 if (ent->render.model && ent->render.model->flags)
 570                 {
 571                         if (ent->render.model->flags & EF_ROTATE)
 572                         {
 573                                 ent->render.angles[1] = bobjrotate;
 574                                 ent->render.origin[2] += bobjoffset;
 575                         }
 576                         // only do trails if present in the previous frame as well
 577                         if (ent->state_previous.active)
 578                         {
 579                                 if (ent->render.model->flags & EF_GIB)
 580                                         CL_RocketTrail (oldorg, neworg, 2, ent);
 581                                 else if (ent->render.model->flags & EF_ZOMGIB)
 582                                         CL_RocketTrail (oldorg, neworg, 4, ent);
 583                                 else if (ent->render.model->flags & EF_TRACER)
 584                                         CL_RocketTrail (oldorg, neworg, 3, ent);
 585                                 else if (ent->render.model->flags & EF_TRACER2)
 586                                         CL_RocketTrail (oldorg, neworg, 5, ent);
 587                                 else if (ent->render.model->flags & EF_ROCKET)
 588                                 {
 589                                         CL_RocketTrail (oldorg, ent->render.origin, 0, ent);
 590                                         // LordHavoc: changed from 200, 160, 80 to 250, 200, 100
 591                                         dlightcolor[0] += 250.0f;
 592                                         dlightcolor[1] += 200.0f;
 593                                         dlightcolor[2] += 100.0f;
 594                                 }
 595                                 else if (ent->render.model->flags & EF_GRENADE)
 596                                 {
 597                                         if (ent->render.alpha == -1) // LordHavoc: Nehahra dem compatibility
 598                                                 CL_RocketTrail (oldorg, neworg, 7, ent);
 599                                         else
 600                                                 CL_RocketTrail (oldorg, neworg, 1, ent);
 601                                 }
 602                                 else if (ent->render.model->flags & EF_TRACER3)
 603                                         CL_RocketTrail (oldorg, neworg, 6, ent);
 604                         }
 605                 }
 606                 // LordHavoc: customizable glow
 607                 glowsize = ent->state_current.glowsize * 4.0f; // FIXME: interpolate?
 608                 glowcolor = ent->state_current.glowcolor;
 609                 if (glowsize)
 610                 {
 611                         byte *tempcolor = (byte *)&d_8to24table[glowcolor];
 612                         dlightcolor[0] += glowsize * tempcolor[0] * (1.0f / 255.0f);
 613                         dlightcolor[1] += glowsize * tempcolor[1] * (1.0f / 255.0f);
 614                         dlightcolor[2] += glowsize * tempcolor[2] * (1.0f / 255.0f);
 615                 }
 616                 // LordHavoc: customizable trail
 617                 if (ent->render.flags & RENDER_GLOWTRAIL)
 618                         CL_RocketTrail2 (oldorg, neworg, glowcolor, ent);
 619
 620                 if (dlightcolor[0] || dlightcolor[1] || dlightcolor[2])
 621                 {
 622                         vec3_t vec;
 623                         dlightradius = VectorLength(dlightcolor);
 624                         d = 1.0f / dlightradius;
 625                         VectorCopy(neworg, vec);
 626                         // hack to make glowing player light shine on their gun
 627                         if (i == cl.viewentity && !chase_active.integer)
 628                                 vec[2] += 30;
 629                         CL_AllocDlight (&ent->render, vec, dlightradius, dlightcolor[0] * d, dlightcolor[1] * d, dlightcolor[2] * d, 0, 0);
 630                 }
 631
 632                 if (chase_active.integer)
 633                 {
 634                         if (ent->render.flags & RENDER_VIEWMODEL)
 635                                 continue;
 636                 }
 637                 else
 638                 {
 639                         if (i == cl.viewentity || (ent->render.flags & RENDER_EXTERIORMODEL))
 640                                 continue;
 641                 }
 642
 643                 if (ent->render.model == NULL)
 644                         continue;
 645                 if (effects & EF_NODRAW)
 646                         continue;
 647                 if (r_refdef.numentities < MAX_VISEDICTS)
 648                         r_refdef.entities[r_refdef.numentities++] = &ent->render;
 649         }
 650 }
 651
 652 static void CL_LerpPlayerVelocity (void)
 653 {
 654         int i;
 655         float frac, d;
 656
 657         // fraction from previous network update to current
 658         frac = CL_LerpPoint ();
 659
 660         for (i = 0;i < 3;i++)
 661                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
 662
 663         if (cls.demoplayback)
 664         {
 665                 // interpolate the angles
 666                 for (i = 0;i < 3;i++)
 667                 {
 668                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
 669                         if (d > 180)
 670                                 d -= 360;
 671                         else if (d < -180)
 672                                 d += 360;
 673                         cl.viewangles[i] = cl.mviewangles[1][i] + frac*d;
 674                 }
 675         }
 676 }
 677
 678 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
 679 {
 680         int i;
 681         cl_effect_t *e;
 682         if (!modelindex) // sanity check
 683                 return;
 684         for (i = 0, e = cl_effect;i < MAX_EFFECTS;i++, e++)
 685         {
 686                 if (e->active)
 687                         continue;
 688                 e->active = true;
 689                 VectorCopy(org, e->origin);
 690                 e->modelindex = modelindex;
 691                 e->starttime = cl.time;
 692                 e->startframe = startframe;
 693                 e->endframe = startframe + framecount;
 694                 e->framerate = framerate;
 695
 696                 e->frame = 0;
 697                 e->frame1time = cl.time;
 698                 e->frame2time = cl.time;
 699                 break;
 700         }
 701 }
 702
 703 static void CL_RelinkEffects()
 704 {
 705         int i, intframe;
 706         cl_effect_t *e;
 707         entity_t *vis;
 708         float frame;
 709
 710         for (i = 0, e = cl_effect;i < MAX_EFFECTS;i++, e++)
 711         {
 712                 if (e->active)
 713                 {
 714                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
 715                         intframe = frame;
 716                         if (intframe < 0 || intframe >= e->endframe)
 717                         {
 718                                 e->active = false;
 719                                 memset(e, 0, sizeof(*e));
 720                                 continue;
 721                         }
 722
 723                         if (intframe != e->frame)
 724                         {
 725                                 e->frame = intframe;
 726                                 e->frame1time = e->frame2time;
 727                                 e->frame2time = cl.time;
 728                         }
 729
 730                         if ((vis = CL_NewTempEntity()))
 731                         {
 732                                 // interpolation stuff
 733                                 vis->render.frame1 = intframe;
 734                                 vis->render.frame2 = intframe + 1;
 735                                 if (vis->render.frame2 >= e->endframe)
 736                                         vis->render.frame2 = -1; // disappear
 737                                 vis->render.framelerp = frame - intframe;
 738                                 vis->render.frame1time = e->frame1time;
 739                                 vis->render.frame2time = e->frame2time;
 740
 741                                 // normal stuff
 742                                 VectorCopy(e->origin, vis->render.origin);
 743                                 vis->render.model = cl.model_precache[e->modelindex];
 744                                 vis->render.frame = vis->render.frame2;
 745                                 vis->render.colormap = -1; // no special coloring
 746                                 vis->render.scale = 1;
 747                                 vis->render.alpha = 1;
 748                         }
 749                 }
 750         }
 751 }
 752
 753 void CL_RelinkEntities (void)
 754 {
 755         CL_LerpPlayerVelocity();
 756         CL_RelinkNetworkEntities();
 757         TraceLine_ScanForBModels();
 758         CL_RelinkEffects();
 759         CL_MoveParticles();
 760         CL_UpdateDecals();
 761         CL_UpdateTEnts();
 762 }
 763
 764
 765 /*
 766 ===============
 767 CL_ReadFromServer
 768
 769 Read all incoming data from the server
 770 ===============
 771 */
 772 int CL_ReadFromServer (void)
 773 {
 774         int ret, netshown;
 775
 776         cl.oldtime = cl.time;
 777         cl.time += cl.frametime;
 778
 779         netshown = false;
 780         do
 781         {
 782                 ret = CL_GetMessage ();
 783                 if (ret == -1)
 784                         Host_Error ("CL_ReadFromServer: lost server connection");
 785                 if (!ret)
 786                         break;
 787
 788                 cl.last_received_message = realtime;
 789
 790                 if (cl_shownet.integer)
 791                         netshown = true;
 792
 793                 CL_ParseServerMessage ();
 794         }
 795         while (ret && cls.state == ca_connected);
 796
 797         if (netshown)
 798                 Con_Printf ("\n");
 799
 800         r_refdef.numentities = 0;
 801         if (cls.state == ca_connected && cl.worldmodel)
 802         {
 803                 CL_RelinkEntities ();
 804
 805                 // run cgame code (which can add more entities)
 806                 CL_CGVM_Frame();
 807         }
 808
 809 //
 810 // bring the links up to date
 811 //
 812         return 0;
 813 }
 814
 815 /*
 816 =================
 817 CL_SendCmd
 818 =================
 819 */
 820 void CL_SendCmd (void)
 821 {
 822         usercmd_t               cmd;
 823
 824         if (cls.state != ca_connected)
 825                 return;
 826
 827         if (cls.signon == SIGNONS)
 828         {
 829         // get basic movement from keyboard
 830                 CL_BaseMove (&cmd);
 831
 832         // allow mice or other external controllers to add to the move
 833                 IN_Move (&cmd);
 834
 835         // send the unreliable message
 836                 CL_SendMove (&cmd);
 837         }
 838
 839         if (cls.demoplayback)
 840         {
 841                 SZ_Clear (&cls.message);
 842                 return;
 843         }
 844
 845 // send the reliable message
 846         if (!cls.message.cursize)
 847                 return;         // no message at all
 848
 849         if (!NET_CanSendMessage (cls.netcon))
 850         {
 851                 Con_DPrintf ("CL_WriteToServer: can't send\n");
 852                 return;
 853         }
 854
 855         if (NET_SendMessage (cls.netcon, &cls.message) == -1)
 856                 Host_Error ("CL_WriteToServer: lost server connection");
 857
 858         SZ_Clear (&cls.message);
 859 }
 860
 861 // LordHavoc: pausedemo command
 862 static void CL_PauseDemo_f (void)
 863 {
 864         cls.demopaused = !cls.demopaused;
 865         if (cls.demopaused)
 866                 Con_Printf("Demo paused\n");
 867         else
 868                 Con_Printf("Demo unpaused\n");
 869 }
 870
 871 /*
 872 ======================
 873 CL_PModel_f
 874 LordHavoc: Intended for Nehahra, I personally think this is dumb, but Mindcrime won't listen.
 875 ======================
 876 */
 877 static void CL_PModel_f (void)
 878 {
 879         int i;
 880         eval_t *val;
 881
 882         if (Cmd_Argc () == 1)
 883         {
 884                 Con_Printf ("\"pmodel\" is \"%s\"\n", cl_pmodel.string);
 885                 return;
 886         }
 887         i = atoi(Cmd_Argv(1));
 888
 889         if (cmd_source == src_command)
 890         {
 891                 if (cl_pmodel.integer == i)
 892                         return;
 893                 Cvar_SetValue ("_cl_pmodel", i);
 894                 if (cls.state == ca_connected)
 895                         Cmd_ForwardToServer ();
 896                 return;
 897         }
 898
 899         host_client->pmodel = i;
 900         if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_pmodel)))
 901                 val->_float = i;
 902 }
 903
 904 /*
 905 ======================
 906 CL_Fog_f
 907 ======================
 908 */
 909 static void CL_Fog_f (void)
 910 {
 911         if (Cmd_Argc () == 1)
 912         {
 913                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
 914                 return;
 915         }
 916         fog_density = atof(Cmd_Argv(1));
 917         fog_red = atof(Cmd_Argv(2));
 918         fog_green = atof(Cmd_Argv(3));
 919         fog_blue = atof(Cmd_Argv(4));
 920 }
 921
 922 /*
 923 =================
 924 CL_Init
 925 =================
 926 */
 927 void CL_Init (void)
 928 {
 929         cl_scores_mempool = Mem_AllocPool("client player info");
 930
 931         cl_refdef_mempool = Mem_AllocPool("refdef");
 932         memset(&r_refdef, 0, sizeof(r_refdef));
 933         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * MAX_VISEDICTS);
 934
 935         SZ_Alloc (&cls.message, 1024, "cls.message");
 936
 937         CL_InitInput ();
 938         CL_InitTEnts ();
 939
 940 //
 941 // register our commands
 942 //
 943         Cvar_RegisterVariable (&cl_name);
 944         Cvar_RegisterVariable (&cl_color);
 945         if (gamemode == GAME_NEHAHRA)
 946                 Cvar_RegisterVariable (&cl_pmodel);
 947         Cvar_RegisterVariable (&cl_upspeed);
 948         Cvar_RegisterVariable (&cl_forwardspeed);
 949         Cvar_RegisterVariable (&cl_backspeed);
 950         Cvar_RegisterVariable (&cl_sidespeed);
 951         Cvar_RegisterVariable (&cl_movespeedkey);
 952         Cvar_RegisterVariable (&cl_yawspeed);
 953         Cvar_RegisterVariable (&cl_pitchspeed);
 954         Cvar_RegisterVariable (&cl_anglespeedkey);
 955         Cvar_RegisterVariable (&cl_shownet);
 956         Cvar_RegisterVariable (&cl_nolerp);
 957         Cvar_RegisterVariable (&lookspring);
 958         Cvar_RegisterVariable (&lookstrafe);
 959         Cvar_RegisterVariable (&sensitivity);
 960         Cvar_RegisterVariable (&freelook);
 961
 962         Cvar_RegisterVariable (&m_pitch);
 963         Cvar_RegisterVariable (&m_yaw);
 964         Cvar_RegisterVariable (&m_forward);
 965         Cvar_RegisterVariable (&m_side);
 966
 967         Cvar_RegisterVariable (&cl_itembobspeed);
 968         Cvar_RegisterVariable (&cl_itembobheight);
 969
 970         Cmd_AddCommand ("entities", CL_PrintEntities_f);
 971         Cmd_AddCommand ("bitprofile", CL_BitProfile_f);
 972         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
 973         Cmd_AddCommand ("record", CL_Record_f);
 974         Cmd_AddCommand ("stop", CL_Stop_f);
 975         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
 976         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
 977
 978         Cmd_AddCommand ("fog", CL_Fog_f);
 979
 980         // LordHavoc: added pausedemo
 981         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
 982         if (gamemode == GAME_NEHAHRA)
 983                 Cmd_AddCommand ("pmodel", CL_PModel_f);
 984
 985         Cvar_RegisterVariable(&cl_draweffects);
 986
 987         CL_Parse_Init();
 988         CL_Particles_Init();
 989         CL_Decals_Init();
 990         CL_Screen_Init();
 991         CL_CGVM_Init();
 992 }