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