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_Particles_Clear();
 110         CL_Decals_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
 120 void CL_LerpUpdate(entity_t *e, int frame, int modelindex)
 121 {
 122         entity_persistent_t *p;
 123         entity_render_t *r;
 124         p = &e->persistent;
 125         r = &e->render;
 126
 127         if (p->modelindex != modelindex)
 128         {
 129                 // reset all interpolation information
 130                 p->modelindex = modelindex;
 131                 p->frame1 = p->frame2 = frame;
 132                 p->frame1time = p->frame2time = cl.time;
 133                 p->framelerp = 1;
 134         }
 135         else if (p->frame2 != frame)
 136         {
 137                 // transition to new frame
 138                 p->frame1 = p->frame2;
 139                 p->frame1time = p->frame2time;
 140                 p->frame2 = frame;
 141                 p->frame2time = cl.time;
 142                 p->framelerp = 0;
 143         }
 144         else
 145         {
 146                 // update transition
 147                 p->framelerp = (cl.time - p->frame2time) * 10;
 148                 p->framelerp = bound(0, p->framelerp, 1);
 149         }
 150
 151         r->frame1 = p->frame1;
 152         r->frame2 = p->frame2;
 153         r->framelerp = p->framelerp;
 154         r->frame1time = p->frame1time;
 155         r->frame2time = p->frame2time;
 156 }
 157
 158 /*
 159 =====================
 160 CL_Disconnect
 161
 162 Sends a disconnect message to the server
 163 This is also called on Host_Error, so it shouldn't cause any errors
 164 =====================
 165 */
 166 void CL_Disconnect (void)
 167 {
 168         if (cls.state == ca_dedicated)
 169                 return;
 170
 171 // stop sounds (especially looping!)
 172         S_StopAllSounds (true);
 173
 174         // clear contents blends
 175         cl.cshifts[0].percent = 0;
 176         cl.cshifts[1].percent = 0;
 177         cl.cshifts[2].percent = 0;
 178         cl.cshifts[3].percent = 0;
 179
 180         cl.worldmodel = NULL;
 181
 182         if (cls.demoplayback)
 183                 CL_StopPlayback ();
 184         else if (cls.state == ca_connected)
 185         {
 186                 if (cls.demorecording)
 187                         CL_Stop_f ();
 188
 189                 Con_DPrintf ("Sending clc_disconnect\n");
 190                 SZ_Clear (&cls.message);
 191                 MSG_WriteByte (&cls.message, clc_disconnect);
 192                 NET_SendUnreliableMessage (cls.netcon, &cls.message);
 193                 SZ_Clear (&cls.message);
 194                 NET_Close (cls.netcon);
 195                 // if running a local server, shut it down
 196                 if (sv.active)
 197                         Host_ShutdownServer(false);
 198         }
 199         cls.state = ca_disconnected;
 200
 201         cls.demoplayback = cls.timedemo = false;
 202         cls.signon = 0;
 203 }
 204
 205 void CL_Disconnect_f (void)
 206 {
 207         CL_Disconnect ();
 208         if (sv.active)
 209                 Host_ShutdownServer (false);
 210 }
 211
 212
 213
 214
 215 /*
 216 =====================
 217 CL_EstablishConnection
 218
 219 Host should be either "local" or a net address to be passed on
 220 =====================
 221 */
 222 void CL_EstablishConnection (char *host)
 223 {
 224         if (cls.state == ca_dedicated)
 225                 return;
 226
 227         if (cls.demoplayback)
 228                 return;
 229
 230         CL_Disconnect ();
 231
 232         cls.netcon = NET_Connect (host);
 233         if (!cls.netcon)
 234                 Host_Error ("CL_Connect: connect failed\n");
 235         Con_DPrintf ("CL_EstablishConnection: connected to %s\n", host);
 236
 237         cls.demonum = -1;                       // not in the demo loop now
 238         cls.state = ca_connected;
 239         cls.signon = 0;                         // need all the signon messages before playing
 240 }
 241
 242 /*
 243 ==============
 244 CL_PrintEntities_f
 245 ==============
 246 */
 247 static void CL_PrintEntities_f (void)
 248 {
 249         entity_t        *ent;
 250         int                     i, j;
 251         char            name[32];
 252
 253         for (i = 0, ent = cl_entities;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
 254         {
 255                 if (!ent->state_current.active)
 256                         continue;
 257                 if (!ent->render.model)
 258                         continue;
 259
 260                 Con_Printf ("%3i:", i);
 261                 if (!ent->render.model)
 262                 {
 263                         Con_Printf ("EMPTY\n");
 264                         continue;
 265                 }
 266                 strncpy(name, ent->render.model->name, 30);
 267                 name[30] = 0;
 268                 for (j = strlen(name);j < 30;j++)
 269                         name[j] = ' ';
 270                 Con_Printf ("%s:%04i (%5i %5i %5i) [%3i %3i %3i]\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);
 271         }
 272 }
 273
 274
 275 /*
 276 ===============
 277 CL_LerpPoint
 278
 279 Determines the fraction between the last two messages that the objects
 280 should be put at.
 281 ===============
 282 */
 283 static float CL_LerpPoint (void)
 284 {
 285         float   f, frac;
 286
 287         f = cl.mtime[0] - cl.mtime[1];
 288
 289         // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
 290         if (!f || cl_nolerp.integer || cls.timedemo || (sv.active && svs.maxclients == 1))
 291         {
 292                 cl.time = cl.mtime[0];
 293                 return 1;
 294         }
 295
 296         if (f > 0.1)
 297         {       // dropped packet, or start of demo
 298                 cl.mtime[1] = cl.mtime[0] - 0.1;
 299                 f = 0.1;
 300         }
 301         frac = (cl.time - cl.mtime[1]) / f;
 302 //      Con_Printf ("frac: %f\n",frac);
 303         if (frac < 0)
 304         {
 305                 if (frac < -0.01)
 306                 {
 307                         cl.time = cl.mtime[1];
 308 //                      Con_Printf ("low frac\n");
 309                 }
 310                 frac = 0;
 311         }
 312         else if (frac > 1)
 313         {
 314                 if (frac > 1.01)
 315                 {
 316                         cl.time = cl.mtime[0];
 317 //                      Con_Printf ("high frac\n");
 318                 }
 319                 frac = 1;
 320         }
 321
 322         return frac;
 323 }
 324
 325 static void CL_RelinkStaticEntities(void)
 326 {
 327         int i;
 328         for (i = 0;i < cl.num_statics && r_refdef.numentities < MAX_VISEDICTS;i++)
 329         {
 330                 Mod_CheckLoaded(cl_static_entities[i].render.model);
 331                 r_refdef.entities[r_refdef.numentities++] = &cl_static_entities[i].render;
 332         }
 333 }
 334
 335 /*
 336 ===============
 337 CL_RelinkEntities
 338 ===============
 339 */
 340 static void CL_RelinkNetworkEntities()
 341 {
 342         entity_t        *ent;
 343         int                     i, glowcolor, effects;
 344         float           f, d, bobjrotate, bobjoffset, dlightradius, glowsize, lerp;
 345         vec3_t          oldorg, neworg, delta, dlightcolor;
 346
 347         bobjrotate = ANGLEMOD(100*cl.time);
 348         if (cl_itembobheight.value)
 349                 bobjoffset = (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
 350         else
 351                 bobjoffset = 0;
 352
 353         CL_RelinkStaticEntities();
 354
 355 // start on the entity after the world
 356         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
 357         {
 358                 // if the object wasn't included in the latest packet, remove it
 359                 if (!ent->state_current.active)
 360                         continue;
 361
 362                 VectorCopy(ent->persistent.trail_origin, oldorg);
 363
 364                 if (!ent->state_previous.active)
 365                 {
 366                         // only one state available
 367                         lerp = 1;
 368                         VectorCopy (ent->state_current.origin, oldorg); // skip trails
 369                         VectorCopy (ent->state_current.origin, neworg);
 370                         VectorCopy (ent->state_current.angles, ent->render.angles);
 371
 372                         /*
 373                         // monster interpolation
 374                         ent->persistent.steplerptime = 0;
 375                         VectorCopy(ent->state_current.origin, ent->persistent.stepoldorigin);
 376                         VectorCopy(ent->state_current.angles, ent->persistent.stepoldangles);
 377                         VectorCopy(ent->state_current.origin, ent->persistent.steporigin);
 378                         VectorCopy(ent->state_current.angles, ent->persistent.stepangles);
 379                         */
 380                 }
 381                 /*
 382                 else if ((ent->state_current.flags & ent->state_previous.flags) & ENTFLAG_STEP)
 383                 {
 384                         if (ent->state_current.origin[0] != ent->persistent.steporigin[0]
 385                          || ent->state_current.origin[1] != ent->persistent.steporigin[1]
 386                          || ent->state_current.origin[2] != ent->persistent.steporigin[2]
 387                          || ent->state_current.angles[0] != ent->persistent.stepangles[0]
 388                          || ent->state_current.angles[1] != ent->persistent.stepangles[1]
 389                          || ent->state_current.angles[2] != ent->persistent.stepangles[2])
 390                         {
 391                                 // update lerp positions
 392                                 ent->clientpersistent.steplerptime = sv.time;
 393                                 VectorCopy(ent->steporigin, ent->stepoldorigin);
 394                                 VectorCopy(ent->stepangles, ent->stepoldangles);
 395                                 VectorCopy(ent->v.origin, ent->steporigin);
 396                                 VectorCopy(ent->v.angles, ent->stepangles);
 397                         }
 398                         lerp = (cl.time - ent->persistent.steplerptime) * 10.0;
 399                         if (lerp < 1)
 400                         {
 401                                 // origin
 402                                 VectorSubtract(ent->persistent.steporigin, ent->persistent.stepoldorigin, delta);
 403                                 VectorMA(ent->persistent.stepoldorigin, lerp, delta, neworg);
 404
 405                                 // angles
 406                                 VectorSubtract(ent->persistent.stepangles, ent->persistent.stepoldangles, delta);
 407                                 // choose shortest rotate (to avoid 'spin around' situations)
 408                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 409                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 410                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 411                                 VectorMA(ent->stepoldangles, lerp, delta, ent->render.angles);
 412                         }
 413                         else
 414                         {
 415                                 VectorCopy(ent->persistent.steporigin, neworg);
 416                                 VectorCopy(ent->persistent.stepangles, ent->render.angles);
 417                         }
 418                 }
 419                 */
 420                 else
 421                 {
 422                         /*
 423                         // monster interpolation
 424                         ent->persistent.steplerptime = 0;
 425                         VectorCopy(ent->state_current.origin, ent->persistent.stepoldorigin);
 426                         VectorCopy(ent->state_current.angles, ent->persistent.stepoldangles);
 427                         VectorCopy(ent->state_current.origin, ent->persistent.steporigin);
 428                         VectorCopy(ent->state_current.angles, ent->persistent.stepangles);
 429                         */
 430
 431                         // if the delta is large, assume a teleport and don't lerp
 432                         VectorSubtract(ent->state_current.origin, ent->state_previous.origin, delta);
 433                         // LordHavoc: increased tolerance from 100 to 200
 434                         if ((sv.active && svs.maxclients == 1 && !(ent->state_current.flags & RENDER_STEP)) || cls.timedemo || DotProduct(delta, delta) > 200*200 || cl_nolerp.integer)
 435                                 lerp = 1;
 436                         else
 437                         {
 438                                 f = ent->state_current.time - ent->state_previous.time;
 439                                 if (f > 0)
 440                                         lerp = (cl.time - ent->state_previous.time) / f;
 441                                 else
 442                                         lerp = 1;
 443                         }
 444                         if (lerp >= 1)
 445                         {
 446                                 // no interpolation
 447                                 VectorCopy (ent->state_current.origin, neworg);
 448                                 VectorCopy (ent->state_current.angles, ent->render.angles);
 449                         }
 450                         else
 451                         {
 452                                 // interpolate the origin and angles
 453                                 VectorMA(ent->state_previous.origin, lerp, delta, neworg);
 454                                 VectorSubtract(ent->state_current.angles, ent->state_previous.angles, delta);
 455                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 456                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 457                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 458                                 VectorMA(ent->state_previous.angles, lerp, delta, ent->render.angles);
 459                         }
 460                 }
 461
 462                 VectorCopy (neworg, ent->persistent.trail_origin);
 463                 // persistent.modelindex will be updated by CL_LerpUpdate
 464                 if (ent->state_current.modelindex != ent->persistent.modelindex || !ent->state_previous.active)
 465                         VectorCopy(neworg, oldorg);
 466
 467                 VectorCopy (neworg, ent->render.origin);
 468                 ent->render.flags = ent->state_current.flags;
 469                 ent->render.effects = effects = ent->state_current.effects;
 470                 ent->render.model = cl.model_precache[ent->state_current.modelindex];
 471                 Mod_CheckLoaded(ent->render.model);
 472                 ent->render.frame = ent->state_current.frame;
 473                 if (cl.scores == NULL || !ent->state_current.colormap)
 474                         ent->render.colormap = -1; // no special coloring
 475                 else
 476                         ent->render.colormap = cl.scores[ent->state_current.colormap - 1].colors; // color it
 477                 ent->render.skinnum = ent->state_current.skin;
 478                 ent->render.alpha = ent->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
 479                 ent->render.scale = ent->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
 480                 glowsize = ent->state_current.glowsize * 4.0f; // FIXME: interpolate?
 481                 glowcolor = ent->state_current.glowcolor;
 482
 483                 // update interpolation info
 484                 CL_LerpUpdate(ent, ent->state_current.frame, ent->state_current.modelindex);
 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);
 507
 508                                 CL_AllocDlight (NULL, v, 100, 1, 1, 1, 0, 0.1);
 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                                         dlightcolor[0] += 200.0f;
 590                                         dlightcolor[1] += 160.0f;
 591                                         dlightcolor[2] +=  80.0f;
 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                 if (glowsize)
 606                 {
 607                         byte *tempcolor = (byte *)&d_8to24table[glowcolor];
 608                         dlightcolor[0] += glowsize * tempcolor[0] * (1.0f / 255.0f);
 609                         dlightcolor[1] += glowsize * tempcolor[1] * (1.0f / 255.0f);
 610                         dlightcolor[2] += glowsize * tempcolor[2] * (1.0f / 255.0f);
 611                 }
 612                 // LordHavoc: customizable trail
 613                 if (ent->render.flags & RENDER_GLOWTRAIL)
 614                         CL_RocketTrail2 (oldorg, neworg, glowcolor, ent);
 615
 616                 if (dlightcolor[0] || dlightcolor[1] || dlightcolor[2])
 617                 {
 618                         vec3_t vec;
 619                         dlightradius = VectorLength(dlightcolor);
 620                         d = 1.0f / dlightradius;
 621                         VectorCopy(neworg, vec);
 622                         // hack to make glowing player light shine on their gun
 623                         if (i == cl.viewentity && !chase_active.integer)
 624                                 vec[2] += 30;
 625                         CL_AllocDlight (&ent->render, vec, dlightradius, dlightcolor[0] * d, dlightcolor[1] * d, dlightcolor[2] * d, 0, 0);
 626                 }
 627
 628                 if (chase_active.integer)
 629                 {
 630                         if (ent->render.flags & RENDER_VIEWMODEL)
 631                                 continue;
 632                 }
 633                 else
 634                 {
 635                         if (i == cl.viewentity || (ent->render.flags & RENDER_EXTERIORMODEL))
 636                                 continue;
 637                 }
 638
 639                 if (ent->render.model == NULL)
 640                         continue;
 641                 if (effects & EF_NODRAW)
 642                         continue;
 643                 if (r_refdef.numentities < MAX_VISEDICTS)
 644                         r_refdef.entities[r_refdef.numentities++] = &ent->render;
 645         }
 646 }
 647
 648 static void CL_LerpPlayerVelocity (void)
 649 {
 650         int i;
 651         float frac, d;
 652
 653         // fraction from previous network update to current
 654         frac = CL_LerpPoint ();
 655
 656         for (i = 0;i < 3;i++)
 657                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
 658
 659         if (cls.demoplayback)
 660         {
 661                 // interpolate the angles
 662                 for (i = 0;i < 3;i++)
 663                 {
 664                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
 665                         if (d > 180)
 666                                 d -= 360;
 667                         else if (d < -180)
 668                                 d += 360;
 669                         cl.viewangles[i] = cl.mviewangles[1][i] + frac*d;
 670                 }
 671         }
 672 }
 673
 674 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
 675 {
 676         int i;
 677         cl_effect_t *e;
 678         if (!modelindex) // sanity check
 679                 return;
 680         for (i = 0, e = cl_effect;i < MAX_EFFECTS;i++, e++)
 681         {
 682                 if (e->active)
 683                         continue;
 684                 e->active = true;
 685                 VectorCopy(org, e->origin);
 686                 e->modelindex = modelindex;
 687                 e->starttime = cl.time;
 688                 e->startframe = startframe;
 689                 e->endframe = startframe + framecount;
 690                 e->framerate = framerate;
 691
 692                 e->frame = 0;
 693                 e->frame1time = cl.time;
 694                 e->frame2time = cl.time;
 695                 break;
 696         }
 697 }
 698
 699 static void CL_RelinkEffects()
 700 {
 701         int i, intframe;
 702         cl_effect_t *e;
 703         entity_t *vis;
 704         float frame;
 705
 706         for (i = 0, e = cl_effect;i < MAX_EFFECTS;i++, e++)
 707         {
 708                 if (e->active)
 709                 {
 710                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
 711                         intframe = frame;
 712                         if (intframe < 0 || intframe >= e->endframe)
 713                         {
 714                                 e->active = false;
 715                                 memset(e, 0, sizeof(*e));
 716                                 continue;
 717                         }
 718
 719                         if (intframe != e->frame)
 720                         {
 721                                 e->frame = intframe;
 722                                 e->frame1time = e->frame2time;
 723                                 e->frame2time = cl.time;
 724                         }
 725
 726                         if ((vis = CL_NewTempEntity()))
 727                         {
 728                                 // interpolation stuff
 729                                 vis->render.frame1 = intframe;
 730                                 vis->render.frame2 = intframe + 1;
 731                                 if (vis->render.frame2 >= e->endframe)
 732                                         vis->render.frame2 = -1; // disappear
 733                                 vis->render.framelerp = frame - intframe;
 734                                 vis->render.frame1time = e->frame1time;
 735                                 vis->render.frame2time = e->frame2time;
 736
 737                                 // normal stuff
 738                                 VectorCopy(e->origin, vis->render.origin);
 739                                 vis->render.model = cl.model_precache[e->modelindex];
 740                                 vis->render.frame = vis->render.frame2;
 741                                 vis->render.colormap = -1; // no special coloring
 742                                 vis->render.scale = 1;
 743                                 vis->render.alpha = 1;
 744                         }
 745                 }
 746         }
 747 }
 748
 749 void CL_RelinkEntities (void)
 750 {
 751         r_refdef.numentities = 0;
 752
 753         CL_LerpPlayerVelocity();
 754         CL_RelinkNetworkEntities();
 755         CL_RelinkEffects();
 756         CL_MoveParticles();
 757         CL_UpdateDecals();
 758         CL_UpdateTEnts ();
 759 }
 760
 761
 762 /*
 763 ===============
 764 CL_ReadFromServer
 765
 766 Read all incoming data from the server
 767 ===============
 768 */
 769 int CL_ReadFromServer (void)
 770 {
 771         int ret, netshown;
 772
 773         cl.oldtime = cl.time;
 774         cl.time += cl.frametime;
 775
 776         netshown = false;
 777         do
 778         {
 779                 ret = CL_GetMessage ();
 780                 if (ret == -1)
 781                         Host_Error ("CL_ReadFromServer: lost server connection");
 782                 if (!ret)
 783                         break;
 784
 785                 cl.last_received_message = realtime;
 786
 787                 if (cl_shownet.integer)
 788                         netshown = true;
 789
 790                 CL_ParseServerMessage ();
 791         }
 792         while (ret && cls.state == ca_connected);
 793
 794         if (netshown)
 795                 Con_Printf ("\n");
 796
 797         CL_RelinkEntities ();
 798
 799 //
 800 // bring the links up to date
 801 //
 802         return 0;
 803 }
 804
 805 /*
 806 =================
 807 CL_SendCmd
 808 =================
 809 */
 810 void CL_SendCmd (void)
 811 {
 812         usercmd_t               cmd;
 813
 814         if (cls.state != ca_connected)
 815                 return;
 816
 817         if (cls.signon == SIGNONS)
 818         {
 819         // get basic movement from keyboard
 820                 CL_BaseMove (&cmd);
 821
 822         // allow mice or other external controllers to add to the move
 823                 IN_Move (&cmd);
 824
 825         // send the unreliable message
 826                 CL_SendMove (&cmd);
 827         }
 828
 829         if (cls.demoplayback)
 830         {
 831                 SZ_Clear (&cls.message);
 832                 return;
 833         }
 834
 835 // send the reliable message
 836         if (!cls.message.cursize)
 837                 return;         // no message at all
 838
 839         if (!NET_CanSendMessage (cls.netcon))
 840         {
 841                 Con_DPrintf ("CL_WriteToServer: can't send\n");
 842                 return;
 843         }
 844
 845         if (NET_SendMessage (cls.netcon, &cls.message) == -1)
 846                 Host_Error ("CL_WriteToServer: lost server connection");
 847
 848         SZ_Clear (&cls.message);
 849 }
 850
 851 // LordHavoc: pausedemo command
 852 static void CL_PauseDemo_f (void)
 853 {
 854         cls.demopaused = !cls.demopaused;
 855         if (cls.demopaused)
 856                 Con_Printf("Demo paused\n");
 857         else
 858                 Con_Printf("Demo unpaused\n");
 859 }
 860
 861 /*
 862 ======================
 863 CL_PModel_f
 864 LordHavoc: Intended for Nehahra, I personally think this is dumb, but Mindcrime won't listen.
 865 ======================
 866 */
 867 static void CL_PModel_f (void)
 868 {
 869         int i;
 870         eval_t *val;
 871
 872         if (Cmd_Argc () == 1)
 873         {
 874                 Con_Printf ("\"pmodel\" is \"%s\"\n", cl_pmodel.string);
 875                 return;
 876         }
 877         i = atoi(Cmd_Argv(1));
 878
 879         if (cmd_source == src_command)
 880         {
 881                 if (cl_pmodel.integer == i)
 882                         return;
 883                 Cvar_SetValue ("_cl_pmodel", i);
 884                 if (cls.state == ca_connected)
 885                         Cmd_ForwardToServer ();
 886                 return;
 887         }
 888
 889         host_client->pmodel = i;
 890         if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_pmodel)))
 891                 val->_float = i;
 892 }
 893
 894 /*
 895 ======================
 896 CL_Fog_f
 897 ======================
 898 */
 899 static void CL_Fog_f (void)
 900 {
 901         if (Cmd_Argc () == 1)
 902         {
 903                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
 904                 return;
 905         }
 906         fog_density = atof(Cmd_Argv(1));
 907         fog_red = atof(Cmd_Argv(2));
 908         fog_green = atof(Cmd_Argv(3));
 909         fog_blue = atof(Cmd_Argv(4));
 910 }
 911
 912 /*
 913 =================
 914 CL_Init
 915 =================
 916 */
 917 void CL_Init (void)
 918 {
 919         cl_scores_mempool = Mem_AllocPool("client player info");
 920
 921         cl_refdef_mempool = Mem_AllocPool("refdef");
 922         memset(&r_refdef, 0, sizeof(r_refdef));
 923         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * MAX_VISEDICTS);
 924
 925         SZ_Alloc (&cls.message, 1024, "cls.message");
 926
 927         CL_InitInput ();
 928         CL_InitTEnts ();
 929
 930 //
 931 // register our commands
 932 //
 933         Cvar_RegisterVariable (&cl_name);
 934         Cvar_RegisterVariable (&cl_color);
 935         if (gamemode == GAME_NEHAHRA)
 936                 Cvar_RegisterVariable (&cl_pmodel);
 937         Cvar_RegisterVariable (&cl_upspeed);
 938         Cvar_RegisterVariable (&cl_forwardspeed);
 939         Cvar_RegisterVariable (&cl_backspeed);
 940         Cvar_RegisterVariable (&cl_sidespeed);
 941         Cvar_RegisterVariable (&cl_movespeedkey);
 942         Cvar_RegisterVariable (&cl_yawspeed);
 943         Cvar_RegisterVariable (&cl_pitchspeed);
 944         Cvar_RegisterVariable (&cl_anglespeedkey);
 945         Cvar_RegisterVariable (&cl_shownet);
 946         Cvar_RegisterVariable (&cl_nolerp);
 947         Cvar_RegisterVariable (&lookspring);
 948         Cvar_RegisterVariable (&lookstrafe);
 949         Cvar_RegisterVariable (&sensitivity);
 950         Cvar_RegisterVariable (&freelook);
 951
 952         Cvar_RegisterVariable (&m_pitch);
 953         Cvar_RegisterVariable (&m_yaw);
 954         Cvar_RegisterVariable (&m_forward);
 955         Cvar_RegisterVariable (&m_side);
 956
 957         Cvar_RegisterVariable (&cl_itembobspeed);
 958         Cvar_RegisterVariable (&cl_itembobheight);
 959
 960         Cmd_AddCommand ("entities", CL_PrintEntities_f);
 961         Cmd_AddCommand ("bitprofile", CL_BitProfile_f);
 962         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
 963         Cmd_AddCommand ("record", CL_Record_f);
 964         Cmd_AddCommand ("stop", CL_Stop_f);
 965         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
 966         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
 967
 968         Cmd_AddCommand ("fog", CL_Fog_f);
 969
 970         // LordHavoc: added pausedemo
 971         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
 972         if (gamemode == GAME_NEHAHRA)
 973                 Cmd_AddCommand ("pmodel", CL_PModel_f);
 974
 975         Cvar_RegisterVariable(&cl_draweffects);
 976
 977         CL_Parse_Init();
 978         CL_Particles_Init();
 979         CL_Decals_Init();
 980 }