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
  53 client_static_t cls;
  54 client_state_t  cl;
  55 // FIXME: put these on hunk?
  56 entity_t                cl_entities[MAX_EDICTS];
  57 entity_t                cl_static_entities[MAX_STATIC_ENTITIES];
  58 lightstyle_t    cl_lightstyle[MAX_LIGHTSTYLES];
  59
  60 int                             cl_numvisedicts;
  61 entity_t                *cl_visedicts[MAX_VISEDICTS];
  62
  63 typedef struct effect_s
  64 {
  65         int active;
  66         vec3_t origin;
  67         float starttime;
  68         float framerate;
  69         int modelindex;
  70         int startframe;
  71         int endframe;
  72         // these are for interpolation
  73         int frame;
  74         double frame1time;
  75         double frame2time;
  76 }
  77 cl_effect_t;
  78
  79 #define MAX_EFFECTS 256
  80
  81 static cl_effect_t cl_effect[MAX_EFFECTS];
  82
  83
  84 /*
  85 =====================
  86 CL_ClearState
  87
  88 =====================
  89 */
  90 void CL_ClearState (void)
  91 {
  92         int                     i;
  93
  94         if (!sv.active)
  95                 Host_ClearMemory ();
  96
  97         Mem_EmptyPool(cl_scores_mempool);
  98
  99 // wipe the entire cl structure
 100         memset (&cl, 0, sizeof(cl));
 101
 102         SZ_Clear (&cls.message);
 103
 104 // clear other arrays
 105         memset(cl_entities, 0, sizeof(cl_entities));
 106         memset(cl_lightstyle, 0, sizeof(cl_lightstyle));
 107         memset(cl_temp_entities, 0, sizeof(cl_temp_entities));
 108         memset(cl_beams, 0, sizeof(cl_beams));
 109         memset(cl_dlights, 0, sizeof(cl_dlights));
 110         memset(cl_effect, 0, sizeof(cl_effect));
 111         CL_Particles_Clear();
 112         CL_Decals_Clear();
 113         // LordHavoc: have to set up the baseline info for alpha and other stuff
 114         for (i = 0;i < MAX_EDICTS;i++)
 115         {
 116                 ClearStateToDefault(&cl_entities[i].state_baseline);
 117                 ClearStateToDefault(&cl_entities[i].state_previous);
 118                 ClearStateToDefault(&cl_entities[i].state_current);
 119         }
 120 }
 121
 122 void CL_LerpUpdate(entity_t *e, int frame, int modelindex)
 123 {
 124         entity_persistent_t *p;
 125         entity_render_t *r;
 126         p = &e->persistent;
 127         r = &e->render;
 128
 129         if (p->modelindex != modelindex)
 130         {
 131                 // reset all interpolation information
 132                 p->modelindex = modelindex;
 133                 p->frame1 = p->frame2 = frame;
 134                 p->frame1time = p->frame2time = cl.time;
 135                 p->framelerp = 1;
 136         }
 137         else if (p->frame2 != frame)
 138         {
 139                 // transition to new frame
 140                 p->frame1 = p->frame2;
 141                 p->frame1time = p->frame2time;
 142                 p->frame2 = 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->frame1 = p->frame1;
 154         r->frame2 = p->frame2;
 155         r->framelerp = p->framelerp;
 156         r->frame1time = p->frame1time;
 157         r->frame2time = p->frame2time;
 158 }
 159
 160 /*
 161 =====================
 162 CL_Disconnect
 163
 164 Sends a disconnect message to the server
 165 This is also called on Host_Error, so it shouldn't cause any errors
 166 =====================
 167 */
 168 void CL_Disconnect (void)
 169 {
 170 // stop sounds (especially looping!)
 171         S_StopAllSounds (true);
 172
 173         // clear contents blends
 174         cl.cshifts[0].percent = 0;
 175         cl.cshifts[1].percent = 0;
 176         cl.cshifts[2].percent = 0;
 177         cl.cshifts[3].percent = 0;
 178
 179         cl.worldmodel = NULL;
 180
 181         if (cls.demoplayback)
 182                 CL_StopPlayback ();
 183         else if (cls.state == ca_connected)
 184         {
 185                 if (cls.demorecording)
 186                         CL_Stop_f ();
 187
 188                 Con_DPrintf ("Sending clc_disconnect\n");
 189                 SZ_Clear (&cls.message);
 190                 MSG_WriteByte (&cls.message, clc_disconnect);
 191                 NET_SendUnreliableMessage (cls.netcon, &cls.message);
 192                 SZ_Clear (&cls.message);
 193                 NET_Close (cls.netcon);
 194                 // if running a local server, shut it down
 195                 if (sv.active)
 196                         Host_ShutdownServer(false);
 197         }
 198         cls.state = ca_disconnected;
 199
 200         cls.demoplayback = cls.timedemo = false;
 201         cls.signon = 0;
 202 }
 203
 204 void CL_Disconnect_f (void)
 205 {
 206         CL_Disconnect ();
 207         if (sv.active)
 208                 Host_ShutdownServer (false);
 209 }
 210
 211
 212
 213
 214 /*
 215 =====================
 216 CL_EstablishConnection
 217
 218 Host should be either "local" or a net address to be passed on
 219 =====================
 220 */
 221 void CL_EstablishConnection (char *host)
 222 {
 223         if (cls.state == ca_dedicated)
 224                 return;
 225
 226         if (cls.demoplayback)
 227                 return;
 228
 229         CL_Disconnect ();
 230
 231         cls.netcon = NET_Connect (host);
 232         if (!cls.netcon)
 233                 Host_Error ("CL_Connect: connect failed\n");
 234         Con_DPrintf ("CL_EstablishConnection: connected to %s\n", host);
 235
 236         cls.demonum = -1;                       // not in the demo loop now
 237         cls.state = ca_connected;
 238         cls.signon = 0;                         // need all the signon messages before playing
 239 }
 240
 241 /*
 242 ==============
 243 CL_PrintEntities_f
 244 ==============
 245 */
 246 static void CL_PrintEntities_f (void)
 247 {
 248         entity_t        *ent;
 249         int                     i, j;
 250         char            name[32];
 251
 252         for (i = 0, ent = cl_entities;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
 253         {
 254                 if (!ent->state_current.active)
 255                         continue;
 256                 if (!ent->render.model)
 257                         continue;
 258
 259                 Con_Printf ("%3i:", i);
 260                 if (!ent->render.model)
 261                 {
 262                         Con_Printf ("EMPTY\n");
 263                         continue;
 264                 }
 265                 strncpy(name, ent->render.model->name, 30);
 266                 name[30] = 0;
 267                 for (j = strlen(name);j < 30;j++)
 268                         name[j] = ' ';
 269                 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);
 270         }
 271 }
 272
 273
 274 /*
 275 ===============
 276 CL_LerpPoint
 277
 278 Determines the fraction between the last two messages that the objects
 279 should be put at.
 280 ===============
 281 */
 282 static float CL_LerpPoint (void)
 283 {
 284         float   f, frac;
 285
 286         f = cl.mtime[0] - cl.mtime[1];
 287
 288         // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
 289         if (!f || cl_nolerp.integer || cls.timedemo || (sv.active && svs.maxclients == 1))
 290         {
 291                 cl.time = cl.mtime[0];
 292                 return 1;
 293         }
 294
 295         if (f > 0.1)
 296         {       // dropped packet, or start of demo
 297                 cl.mtime[1] = cl.mtime[0] - 0.1;
 298                 f = 0.1;
 299         }
 300         frac = (cl.time - cl.mtime[1]) / f;
 301 //      Con_Printf ("frac: %f\n",frac);
 302         if (frac < 0)
 303         {
 304                 if (frac < -0.01)
 305                 {
 306                         cl.time = cl.mtime[1];
 307 //                      Con_Printf ("low frac\n");
 308                 }
 309                 frac = 0;
 310         }
 311         else if (frac > 1)
 312         {
 313                 if (frac > 1.01)
 314                 {
 315                         cl.time = cl.mtime[0];
 316 //                      Con_Printf ("high frac\n");
 317                 }
 318                 frac = 1;
 319         }
 320
 321         return frac;
 322 }
 323
 324 static void CL_RelinkStaticEntities(void)
 325 {
 326         int i;
 327         for (i = 0;i < cl.num_statics && cl_numvisedicts < MAX_VISEDICTS;i++)
 328         {
 329                 Mod_CheckLoaded(cl_static_entities[i].render.model);
 330                 cl_visedicts[cl_numvisedicts++] = &cl_static_entities[i];
 331         }
 332 }
 333
 334 /*
 335 ===============
 336 CL_RelinkEntities
 337 ===============
 338 */
 339 static void CL_RelinkNetworkEntities()
 340 {
 341         entity_t        *ent;
 342         int                     i, glowcolor, effects;
 343         float           f, d, bobjrotate, bobjoffset, dlightradius, glowsize, lerp;
 344         vec3_t          oldorg, neworg, delta, dlightcolor;
 345
 346         bobjrotate = ANGLEMOD(100*cl.time);
 347         if (cl_itembobheight.value)
 348                 bobjoffset = (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
 349         else
 350                 bobjoffset = 0;
 351
 352         CL_RelinkStaticEntities();
 353
 354 // start on the entity after the world
 355         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
 356         {
 357                 // if the object wasn't included in the latest packet, remove it
 358                 if (!ent->state_current.active)
 359                         continue;
 360
 361                 VectorCopy(ent->persistent.trail_origin, oldorg);
 362
 363                 if (!ent->state_previous.active)
 364                 {
 365                         // only one state available
 366                         lerp = 1;
 367                         VectorCopy (ent->state_current.origin, oldorg); // skip trails
 368                         VectorCopy (ent->state_current.origin, neworg);
 369                         VectorCopy (ent->state_current.angles, ent->render.angles);
 370
 371                         /*
 372                         // monster interpolation
 373                         ent->persistent.steplerptime = 0;
 374                         VectorCopy(ent->state_current.origin, ent->persistent.stepoldorigin);
 375                         VectorCopy(ent->state_current.angles, ent->persistent.stepoldangles);
 376                         VectorCopy(ent->state_current.origin, ent->persistent.steporigin);
 377                         VectorCopy(ent->state_current.angles, ent->persistent.stepangles);
 378                         */
 379                 }
 380                 /*
 381                 else if ((ent->state_current.flags & ent->state_previous.flags) & ENTFLAG_STEP)
 382                 {
 383                         if (ent->state_current.origin[0] != ent->persistent.steporigin[0]
 384                          || ent->state_current.origin[1] != ent->persistent.steporigin[1]
 385                          || ent->state_current.origin[2] != ent->persistent.steporigin[2]
 386                          || ent->state_current.angles[0] != ent->persistent.stepangles[0]
 387                          || ent->state_current.angles[1] != ent->persistent.stepangles[1]
 388                          || ent->state_current.angles[2] != ent->persistent.stepangles[2])
 389                         {
 390                                 // update lerp positions
 391                                 ent->clientpersistent.steplerptime = sv.time;
 392                                 VectorCopy(ent->steporigin, ent->stepoldorigin);
 393                                 VectorCopy(ent->stepangles, ent->stepoldangles);
 394                                 VectorCopy(ent->v.origin, ent->steporigin);
 395                                 VectorCopy(ent->v.angles, ent->stepangles);
 396                         }
 397                         lerp = (cl.time - ent->persistent.steplerptime) * 10.0;
 398                         if (lerp < 1)
 399                         {
 400                                 // origin
 401                                 VectorSubtract(ent->persistent.steporigin, ent->persistent.stepoldorigin, delta);
 402                                 VectorMA(ent->persistent.stepoldorigin, lerp, delta, neworg);
 403
 404                                 // angles
 405                                 VectorSubtract(ent->persistent.stepangles, ent->persistent.stepoldangles, delta);
 406                                 // choose shortest rotate (to avoid 'spin around' situations)
 407                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 408                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 409                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 410                                 VectorMA(ent->stepoldangles, lerp, delta, ent->render.angles);
 411                         }
 412                         else
 413                         {
 414                                 VectorCopy(ent->persistent.steporigin, neworg);
 415                                 VectorCopy(ent->persistent.stepangles, ent->render.angles);
 416                         }
 417                 }
 418                 */
 419                 else
 420                 {
 421                         /*
 422                         // monster interpolation
 423                         ent->persistent.steplerptime = 0;
 424                         VectorCopy(ent->state_current.origin, ent->persistent.stepoldorigin);
 425                         VectorCopy(ent->state_current.angles, ent->persistent.stepoldangles);
 426                         VectorCopy(ent->state_current.origin, ent->persistent.steporigin);
 427                         VectorCopy(ent->state_current.angles, ent->persistent.stepangles);
 428                         */
 429
 430                         // if the delta is large, assume a teleport and don't lerp
 431                         VectorSubtract(ent->state_current.origin, ent->state_previous.origin, delta);
 432                         // LordHavoc: increased tolerance from 100 to 200
 433                         if ((sv.active && svs.maxclients == 1 && !(ent->state_current.flags & RENDER_STEP)) || cls.timedemo || DotProduct(delta, delta) > 200*200 || cl_nolerp.integer)
 434                                 lerp = 1;
 435                         else
 436                         {
 437                                 f = ent->state_current.time - ent->state_previous.time;
 438                                 if (f > 0)
 439                                         lerp = (cl.time - ent->state_previous.time) / f;
 440                                 else
 441                                         lerp = 1;
 442                         }
 443                         if (lerp >= 1)
 444                         {
 445                                 // no interpolation
 446                                 VectorCopy (ent->state_current.origin, neworg);
 447                                 VectorCopy (ent->state_current.angles, ent->render.angles);
 448                         }
 449                         else
 450                         {
 451                                 // interpolate the origin and angles
 452                                 VectorMA(ent->state_previous.origin, lerp, delta, neworg);
 453                                 VectorSubtract(ent->state_current.angles, ent->state_previous.angles, delta);
 454                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 455                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 456                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 457                                 VectorMA(ent->state_previous.angles, lerp, delta, ent->render.angles);
 458                         }
 459                 }
 460
 461                 VectorCopy (neworg, ent->persistent.trail_origin);
 462                 // persistent.modelindex will be updated by CL_LerpUpdate
 463                 if (ent->state_current.modelindex != ent->persistent.modelindex || !ent->state_previous.active)
 464                         VectorCopy(neworg, oldorg);
 465
 466                 VectorCopy (neworg, ent->render.origin);
 467                 ent->render.flags = ent->state_current.flags;
 468                 ent->render.effects = effects = ent->state_current.effects;
 469                 ent->render.model = cl.model_precache[ent->state_current.modelindex];
 470                 Mod_CheckLoaded(ent->render.model);
 471                 ent->render.frame = ent->state_current.frame;
 472                 if (cl.scores == NULL || !ent->state_current.colormap)
 473                         ent->render.colormap = -1; // no special coloring
 474                 else
 475                         ent->render.colormap = cl.scores[ent->state_current.colormap - 1].colors; // color it
 476                 ent->render.skinnum = ent->state_current.skin;
 477                 ent->render.alpha = ent->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
 478                 ent->render.scale = ent->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
 479                 glowsize = ent->state_current.glowsize * 4.0f; // FIXME: interpolate?
 480                 glowcolor = ent->state_current.glowcolor;
 481
 482                 // update interpolation info
 483                 CL_LerpUpdate(ent, ent->state_current.frame, ent->state_current.modelindex);
 484
 485                 // handle effects now...
 486                 dlightradius = 0;
 487                 dlightcolor[0] = 0;
 488                 dlightcolor[1] = 0;
 489                 dlightcolor[2] = 0;
 490
 491                 // LordHavoc: if the entity has no effects, don't check each
 492                 if (effects)
 493                 {
 494                         if (effects & EF_BRIGHTFIELD)
 495                                 CL_EntityParticles (ent);
 496                         if (effects & EF_MUZZLEFLASH)
 497                         {
 498                                 vec3_t v, v2;
 499
 500                                 AngleVectors (ent->render.angles, v, NULL, NULL);
 501
 502                                 v2[0] = v[0] * 18 + neworg[0];
 503                                 v2[1] = v[1] * 18 + neworg[1];
 504                                 v2[2] = v[2] * 18 + neworg[2] + 16;
 505                                 TraceLine(neworg, v2, v, NULL, 0);
 506
 507                                 CL_AllocDlight (NULL, v, 100, 1, 1, 1, 0, 0.1);
 508                         }
 509                         if (effects & EF_DIMLIGHT)
 510                         {
 511                                 dlightcolor[0] += 200.0f;
 512                                 dlightcolor[1] += 200.0f;
 513                                 dlightcolor[2] += 200.0f;
 514                         }
 515                         if (effects & EF_BRIGHTLIGHT)
 516                         {
 517                                 dlightcolor[0] += 400.0f;
 518                                 dlightcolor[1] += 400.0f;
 519                                 dlightcolor[2] += 400.0f;
 520                         }
 521                         // LordHavoc: added EF_RED and EF_BLUE
 522                         if (effects & EF_RED) // red
 523                         {
 524                                 dlightcolor[0] += 200.0f;
 525                                 dlightcolor[1] +=  20.0f;
 526                                 dlightcolor[2] +=  20.0f;
 527                         }
 528                         if (effects & EF_BLUE) // blue
 529                         {
 530                                 dlightcolor[0] +=  20.0f;
 531                                 dlightcolor[1] +=  20.0f;
 532                                 dlightcolor[2] += 200.0f;
 533                         }
 534                         if (effects & EF_FLAME)
 535                         {
 536                                 if (ent->render.model)
 537                                 {
 538                                         vec3_t mins, maxs;
 539                                         int temp;
 540                                         if (ent->render.angles[0] || ent->render.angles[2])
 541                                         {
 542                                                 VectorAdd(neworg, ent->render.model->rotatedmins, mins);
 543                                                 VectorAdd(neworg, ent->render.model->rotatedmaxs, maxs);
 544                                         }
 545                                         else if (ent->render.angles[1])
 546                                         {
 547                                                 VectorAdd(neworg, ent->render.model->yawmins, mins);
 548                                                 VectorAdd(neworg, ent->render.model->yawmaxs, maxs);
 549                                         }
 550                                         else
 551                                         {
 552                                                 VectorAdd(neworg, ent->render.model->normalmins, mins);
 553                                                 VectorAdd(neworg, ent->render.model->normalmaxs, maxs);
 554                                         }
 555                                         // how many flames to make
 556                                         temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
 557                                         CL_FlameCube(mins, maxs, temp);
 558                                 }
 559                                 d = lhrandom(200, 250);
 560                                 dlightcolor[0] += d * 1.0f;
 561                                 dlightcolor[1] += d * 0.7f;
 562                                 dlightcolor[2] += d * 0.3f;
 563                         }
 564                 }
 565
 566                 // LordHavoc: if the model has no flags, don't check each
 567                 if (ent->render.model && ent->render.model->flags)
 568                 {
 569                         if (ent->render.model->flags & EF_ROTATE)
 570                         {
 571                                 ent->render.angles[1] = bobjrotate;
 572                                 ent->render.origin[2] += bobjoffset;
 573                         }
 574                         // only do trails if present in the previous frame as well
 575                         if (ent->state_previous.active)
 576                         {
 577                                 if (ent->render.model->flags & EF_GIB)
 578                                         CL_RocketTrail (oldorg, neworg, 2, ent);
 579                                 else if (ent->render.model->flags & EF_ZOMGIB)
 580                                         CL_RocketTrail (oldorg, neworg, 4, ent);
 581                                 else if (ent->render.model->flags & EF_TRACER)
 582                                         CL_RocketTrail (oldorg, neworg, 3, ent);
 583                                 else if (ent->render.model->flags & EF_TRACER2)
 584                                         CL_RocketTrail (oldorg, neworg, 5, ent);
 585                                 else if (ent->render.model->flags & EF_ROCKET)
 586                                 {
 587                                         CL_RocketTrail (oldorg, ent->render.origin, 0, ent);
 588                                         dlightcolor[0] += 200.0f;
 589                                         dlightcolor[1] += 160.0f;
 590                                         dlightcolor[2] +=  80.0f;
 591                                 }
 592                                 else if (ent->render.model->flags & EF_GRENADE)
 593                                 {
 594                                         if (ent->render.alpha == -1) // LordHavoc: Nehahra dem compatibility
 595                                                 CL_RocketTrail (oldorg, neworg, 7, ent);
 596                                         else
 597                                                 CL_RocketTrail (oldorg, neworg, 1, ent);
 598                                 }
 599                                 else if (ent->render.model->flags & EF_TRACER3)
 600                                         CL_RocketTrail (oldorg, neworg, 6, ent);
 601                         }
 602                 }
 603                 // LordHavoc: customizable glow
 604                 if (glowsize)
 605                 {
 606                         byte *tempcolor = (byte *)&d_8to24table[glowcolor];
 607                         dlightcolor[0] += glowsize * tempcolor[0] * (1.0f / 255.0f);
 608                         dlightcolor[1] += glowsize * tempcolor[1] * (1.0f / 255.0f);
 609                         dlightcolor[2] += glowsize * tempcolor[2] * (1.0f / 255.0f);
 610                 }
 611                 // LordHavoc: customizable trail
 612                 if (ent->render.flags & RENDER_GLOWTRAIL)
 613                         CL_RocketTrail2 (oldorg, neworg, glowcolor, ent);
 614
 615                 if (dlightcolor[0] || dlightcolor[1] || dlightcolor[2])
 616                 {
 617                         vec3_t vec;
 618                         dlightradius = VectorLength(dlightcolor);
 619                         d = 1.0f / dlightradius;
 620                         VectorCopy(neworg, vec);
 621                         // hack to make glowing player light shine on their gun
 622                         if (i == cl.viewentity && !chase_active.integer)
 623                                 vec[2] += 30;
 624                         CL_AllocDlight (&ent->render, vec, dlightradius, dlightcolor[0] * d, dlightcolor[1] * d, dlightcolor[2] * d, 0, 0);
 625                 }
 626
 627                 if (chase_active.integer)
 628                 {
 629                         if (ent->render.flags & RENDER_VIEWMODEL)
 630                                 continue;
 631                 }
 632                 else
 633                 {
 634                         if (i == cl.viewentity || (ent->render.flags & RENDER_EXTERIORMODEL))
 635                                 continue;
 636                 }
 637
 638                 if (ent->render.model == NULL)
 639                         continue;
 640                 if (effects & EF_NODRAW)
 641                         continue;
 642                 if (cl_numvisedicts < MAX_VISEDICTS)
 643                         cl_visedicts[cl_numvisedicts++] = ent;
 644         }
 645 }
 646
 647 static void CL_LerpPlayerVelocity (void)
 648 {
 649         int i;
 650         float frac, d;
 651
 652         // fraction from previous network update to current
 653         frac = CL_LerpPoint ();
 654
 655         for (i = 0;i < 3;i++)
 656                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
 657
 658         if (cls.demoplayback)
 659         {
 660                 // interpolate the angles
 661                 for (i = 0;i < 3;i++)
 662                 {
 663                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
 664                         if (d > 180)
 665                                 d -= 360;
 666                         else if (d < -180)
 667                                 d += 360;
 668                         cl.viewangles[i] = cl.mviewangles[1][i] + frac*d;
 669                 }
 670         }
 671 }
 672
 673 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
 674 {
 675         int i;
 676         cl_effect_t *e;
 677         if (!modelindex) // sanity check
 678                 return;
 679         for (i = 0, e = cl_effect;i < MAX_EFFECTS;i++, e++)
 680         {
 681                 if (e->active)
 682                         continue;
 683                 e->active = true;
 684                 VectorCopy(org, e->origin);
 685                 e->modelindex = modelindex;
 686                 e->starttime = cl.time;
 687                 e->startframe = startframe;
 688                 e->endframe = startframe + framecount;
 689                 e->framerate = framerate;
 690
 691                 e->frame = 0;
 692                 e->frame1time = cl.time;
 693                 e->frame2time = cl.time;
 694                 break;
 695         }
 696 }
 697
 698 static void CL_RelinkEffects()
 699 {
 700         int i, intframe;
 701         cl_effect_t *e;
 702         entity_t *vis;
 703         float frame;
 704
 705         for (i = 0, e = cl_effect;i < MAX_EFFECTS;i++, e++)
 706         {
 707                 if (e->active)
 708                 {
 709                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
 710                         intframe = frame;
 711                         if (intframe < 0 || intframe >= e->endframe)
 712                         {
 713                                 e->active = false;
 714                                 memset(e, 0, sizeof(*e));
 715                                 continue;
 716                         }
 717
 718                         if (intframe != e->frame)
 719                         {
 720                                 e->frame = intframe;
 721                                 e->frame1time = e->frame2time;
 722                                 e->frame2time = cl.time;
 723                         }
 724
 725                         if ((vis = CL_NewTempEntity()))
 726                         {
 727                                 // interpolation stuff
 728                                 vis->render.frame1 = intframe;
 729                                 vis->render.frame2 = intframe + 1;
 730                                 if (vis->render.frame2 >= e->endframe)
 731                                         vis->render.frame2 = -1; // disappear
 732                                 vis->render.framelerp = frame - intframe;
 733                                 vis->render.frame1time = e->frame1time;
 734                                 vis->render.frame2time = e->frame2time;
 735
 736                                 // normal stuff
 737                                 VectorCopy(e->origin, vis->render.origin);
 738                                 vis->render.model = cl.model_precache[e->modelindex];
 739                                 vis->render.frame = vis->render.frame2;
 740                                 vis->render.colormap = -1; // no special coloring
 741                                 vis->render.scale = 1;
 742                                 vis->render.alpha = 1;
 743                         }
 744                 }
 745         }
 746 }
 747
 748 void CL_RelinkEntities (void)
 749 {
 750         cl_numvisedicts = 0;
 751
 752         CL_LerpPlayerVelocity();
 753         CL_RelinkNetworkEntities();
 754         CL_RelinkEffects();
 755         CL_MoveParticles();
 756         CL_UpdateDecals();
 757         CL_UpdateTEnts ();
 758 }
 759
 760
 761 /*
 762 ===============
 763 CL_ReadFromServer
 764
 765 Read all incoming data from the server
 766 ===============
 767 */
 768 int CL_ReadFromServer (void)
 769 {
 770         int ret, netshown;
 771
 772         cl.oldtime = cl.time;
 773         cl.time += cl.frametime;
 774
 775         netshown = false;
 776         do
 777         {
 778                 ret = CL_GetMessage ();
 779                 if (ret == -1)
 780                         Host_Error ("CL_ReadFromServer: lost server connection");
 781                 if (!ret)
 782                         break;
 783
 784                 cl.last_received_message = realtime;
 785
 786                 if (cl_shownet.integer)
 787                         netshown = true;
 788
 789                 CL_ParseServerMessage ();
 790         }
 791         while (ret && cls.state == ca_connected);
 792
 793         if (netshown)
 794                 Con_Printf ("\n");
 795
 796         CL_RelinkEntities ();
 797
 798 //
 799 // bring the links up to date
 800 //
 801         return 0;
 802 }
 803
 804 /*
 805 =================
 806 CL_SendCmd
 807 =================
 808 */
 809 void CL_SendCmd (void)
 810 {
 811         usercmd_t               cmd;
 812
 813         if (cls.state != ca_connected)
 814                 return;
 815
 816         if (cls.signon == SIGNONS)
 817         {
 818         // get basic movement from keyboard
 819                 CL_BaseMove (&cmd);
 820
 821         // allow mice or other external controllers to add to the move
 822                 IN_Move (&cmd);
 823
 824         // send the unreliable message
 825                 CL_SendMove (&cmd);
 826         }
 827
 828         if (cls.demoplayback)
 829         {
 830                 SZ_Clear (&cls.message);
 831                 return;
 832         }
 833
 834 // send the reliable message
 835         if (!cls.message.cursize)
 836                 return;         // no message at all
 837
 838         if (!NET_CanSendMessage (cls.netcon))
 839         {
 840                 Con_DPrintf ("CL_WriteToServer: can't send\n");
 841                 return;
 842         }
 843
 844         if (NET_SendMessage (cls.netcon, &cls.message) == -1)
 845                 Host_Error ("CL_WriteToServer: lost server connection");
 846
 847         SZ_Clear (&cls.message);
 848 }
 849
 850 // LordHavoc: pausedemo command
 851 static void CL_PauseDemo_f (void)
 852 {
 853         cls.demopaused = !cls.demopaused;
 854         if (cls.demopaused)
 855                 Con_Printf("Demo paused\n");
 856         else
 857                 Con_Printf("Demo unpaused\n");
 858 }
 859
 860 /*
 861 ======================
 862 CL_PModel_f
 863 LordHavoc: Intended for Nehahra, I personally think this is dumb, but Mindcrime won't listen.
 864 ======================
 865 */
 866 static void CL_PModel_f (void)
 867 {
 868         int i;
 869         eval_t *val;
 870
 871         if (Cmd_Argc () == 1)
 872         {
 873                 Con_Printf ("\"pmodel\" is \"%s\"\n", cl_pmodel.string);
 874                 return;
 875         }
 876         i = atoi(Cmd_Argv(1));
 877
 878         if (cmd_source == src_command)
 879         {
 880                 if (cl_pmodel.integer == i)
 881                         return;
 882                 Cvar_SetValue ("_cl_pmodel", i);
 883                 if (cls.state == ca_connected)
 884                         Cmd_ForwardToServer ();
 885                 return;
 886         }
 887
 888         host_client->pmodel = i;
 889         if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_pmodel)))
 890                 val->_float = i;
 891 }
 892
 893 /*
 894 ======================
 895 CL_Fog_f
 896 ======================
 897 */
 898 static void CL_Fog_f (void)
 899 {
 900         if (Cmd_Argc () == 1)
 901         {
 902                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
 903                 return;
 904         }
 905         fog_density = atof(Cmd_Argv(1));
 906         fog_red = atof(Cmd_Argv(2));
 907         fog_green = atof(Cmd_Argv(3));
 908         fog_blue = atof(Cmd_Argv(4));
 909 }
 910
 911 /*
 912 =================
 913 CL_Init
 914 =================
 915 */
 916 void CL_Init (void)
 917 {
 918         SZ_Alloc (&cls.message, 1024, "cls.message");
 919
 920         CL_InitInput ();
 921         CL_InitTEnts ();
 922
 923 //
 924 // register our commands
 925 //
 926         Cvar_RegisterVariable (&cl_name);
 927         Cvar_RegisterVariable (&cl_color);
 928         if (gamemode == GAME_NEHAHRA)
 929                 Cvar_RegisterVariable (&cl_pmodel);
 930         Cvar_RegisterVariable (&cl_upspeed);
 931         Cvar_RegisterVariable (&cl_forwardspeed);
 932         Cvar_RegisterVariable (&cl_backspeed);
 933         Cvar_RegisterVariable (&cl_sidespeed);
 934         Cvar_RegisterVariable (&cl_movespeedkey);
 935         Cvar_RegisterVariable (&cl_yawspeed);
 936         Cvar_RegisterVariable (&cl_pitchspeed);
 937         Cvar_RegisterVariable (&cl_anglespeedkey);
 938         Cvar_RegisterVariable (&cl_shownet);
 939         Cvar_RegisterVariable (&cl_nolerp);
 940         Cvar_RegisterVariable (&lookspring);
 941         Cvar_RegisterVariable (&lookstrafe);
 942         Cvar_RegisterVariable (&sensitivity);
 943         Cvar_RegisterVariable (&freelook);
 944
 945         Cvar_RegisterVariable (&m_pitch);
 946         Cvar_RegisterVariable (&m_yaw);
 947         Cvar_RegisterVariable (&m_forward);
 948         Cvar_RegisterVariable (&m_side);
 949
 950         Cvar_RegisterVariable (&cl_itembobspeed);
 951         Cvar_RegisterVariable (&cl_itembobheight);
 952
 953         Cmd_AddCommand ("entities", CL_PrintEntities_f);
 954         Cmd_AddCommand ("bitprofile", CL_BitProfile_f);
 955         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
 956         Cmd_AddCommand ("record", CL_Record_f);
 957         Cmd_AddCommand ("stop", CL_Stop_f);
 958         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
 959         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
 960
 961         Cmd_AddCommand ("fog", CL_Fog_f);
 962
 963         // LordHavoc: added pausedemo
 964         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
 965         if (gamemode == GAME_NEHAHRA)
 966                 Cmd_AddCommand ("pmodel", CL_PModel_f);
 967
 968         cl_scores_mempool = Mem_AllocPool("client player info");
 969
 970         Cvar_RegisterVariable(&cl_draweffects);
 971
 972         CL_Parse_Init();
 973         CL_Particles_Init();
 974         CL_Decals_Init();
 975 }