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                 cls.state = ca_disconnected; // prevent this code from executing again during Host_ShutdownServer
 201                 // if running a local server, shut it down
 202                 if (sv.active)
 203                         Host_ShutdownServer(false);
 204         }
 205         cls.state = ca_disconnected;
 206
 207         cls.demoplayback = cls.timedemo = false;
 208         cls.signon = 0;
 209 }
 210
 211 void CL_Disconnect_f (void)
 212 {
 213         CL_Disconnect ();
 214         if (sv.active)
 215                 Host_ShutdownServer (false);
 216 }
 217
 218
 219
 220
 221 /*
 222 =====================
 223 CL_EstablishConnection
 224
 225 Host should be either "local" or a net address to be passed on
 226 =====================
 227 */
 228 void CL_EstablishConnection (char *host)
 229 {
 230         sizebuf_t       buf;
 231         qbyte   data[128];
 232
 233         buf.maxsize = 128;
 234         buf.cursize = 0;
 235         buf.data = data;
 236
 237         if (cls.state == ca_dedicated)
 238                 return;
 239
 240         if (cls.demoplayback)
 241                 return;
 242
 243         CL_Disconnect ();
 244
 245         cls.netcon = NET_Connect (host);
 246         if (!cls.netcon)
 247                 Host_Error ("CL_Connect: connect failed\n");
 248         Con_DPrintf ("CL_EstablishConnection: connected to %s\n", host);
 249
 250         cls.demonum = -1;                       // not in the demo loop now
 251         cls.state = ca_connected;
 252         cls.signon = 0;                         // need all the signon messages before playing
 253
 254         CL_ClearState ();
 255 }
 256
 257 /*
 258 ==============
 259 CL_PrintEntities_f
 260 ==============
 261 */
 262 static void CL_PrintEntities_f (void)
 263 {
 264         entity_t        *ent;
 265         int                     i, j;
 266         char            name[32];
 267
 268         for (i = 0, ent = cl_entities;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
 269         {
 270                 if (!ent->state_current.active)
 271                         continue;
 272                 if (!ent->render.model)
 273                         continue;
 274
 275                 Con_Printf ("%3i:", i);
 276                 if (!ent->render.model)
 277                 {
 278                         Con_Printf ("EMPTY\n");
 279                         continue;
 280                 }
 281                 strncpy(name, ent->render.model->name, 25);
 282                 name[25] = 0;
 283                 for (j = strlen(name);j < 25;j++)
 284                         name[j] = ' ';
 285                 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);
 286         }
 287 }
 288
 289
 290 /*
 291 ===============
 292 CL_LerpPoint
 293
 294 Determines the fraction between the last two messages that the objects
 295 should be put at.
 296 ===============
 297 */
 298 static float CL_LerpPoint (void)
 299 {
 300         float   f;
 301
 302         // dropped packet, or start of demo
 303         if (cl.mtime[1] < cl.mtime[0] - 0.1)
 304                 cl.mtime[1] = cl.mtime[0] - 0.1;
 305
 306         cl.time = bound(cl.mtime[1], cl.time, cl.mtime[0]);
 307
 308         // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
 309         f = cl.mtime[0] - cl.mtime[1];
 310         if (!f || cl_nolerp.integer || cls.timedemo || (sv.active && svs.maxclients == 1))
 311         {
 312                 cl.time = cl.mtime[0];
 313                 return 1;
 314         }
 315
 316         f = (cl.time - cl.mtime[1]) / f;
 317         return bound(0, f, 1);
 318 }
 319
 320 static void CL_RelinkStaticEntities(void)
 321 {
 322         int i;
 323         for (i = 0;i < cl.num_statics && r_refdef.numentities < MAX_VISEDICTS;i++)
 324         {
 325                 Mod_CheckLoaded(cl_static_entities[i].render.model);
 326                 r_refdef.entities[r_refdef.numentities++] = &cl_static_entities[i].render;
 327         }
 328 }
 329
 330 /*
 331 ===============
 332 CL_RelinkEntities
 333 ===============
 334 */
 335 static void CL_RelinkNetworkEntities()
 336 {
 337         entity_t        *ent;
 338         int                     i, glowcolor, effects;
 339         float           f, d, bobjrotate, bobjoffset, dlightradius, glowsize, lerp;
 340         vec3_t          oldorg, neworg, delta, dlightcolor;
 341
 342         bobjrotate = ANGLEMOD(100*cl.time);
 343         if (cl_itembobheight.value)
 344                 bobjoffset = (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
 345         else
 346                 bobjoffset = 0;
 347
 348 // start on the entity after the world
 349         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
 350         {
 351                 // if the object wasn't included in the latest packet, remove it
 352                 if (!ent->state_current.active)
 353                         continue;
 354
 355                 VectorCopy(ent->persistent.trail_origin, oldorg);
 356
 357                 if (!ent->state_previous.active)
 358                 {
 359                         // only one state available
 360                         lerp = 1;
 361                         VectorCopy (ent->state_current.origin, oldorg); // skip trails
 362                         VectorCopy (ent->state_current.origin, neworg);
 363                         VectorCopy (ent->state_current.angles, ent->render.angles);
 364
 365                         /*
 366                         // monster interpolation
 367                         ent->persistent.steplerptime = 0;
 368                         VectorCopy(ent->state_current.origin, ent->persistent.stepoldorigin);
 369                         VectorCopy(ent->state_current.angles, ent->persistent.stepoldangles);
 370                         VectorCopy(ent->state_current.origin, ent->persistent.steporigin);
 371                         VectorCopy(ent->state_current.angles, ent->persistent.stepangles);
 372                         */
 373                 }
 374                 /*
 375                 else if ((ent->state_current.flags & ent->state_previous.flags) & ENTFLAG_STEP)
 376                 {
 377                         if (ent->state_current.origin[0] != ent->persistent.steporigin[0]
 378                          || ent->state_current.origin[1] != ent->persistent.steporigin[1]
 379                          || ent->state_current.origin[2] != ent->persistent.steporigin[2]
 380                          || ent->state_current.angles[0] != ent->persistent.stepangles[0]
 381                          || ent->state_current.angles[1] != ent->persistent.stepangles[1]
 382                          || ent->state_current.angles[2] != ent->persistent.stepangles[2])
 383                         {
 384                                 // update lerp positions
 385                                 ent->clientpersistent.steplerptime = sv.time;
 386                                 VectorCopy(ent->steporigin, ent->stepoldorigin);
 387                                 VectorCopy(ent->stepangles, ent->stepoldangles);
 388                                 VectorCopy(ent->v.origin, ent->steporigin);
 389                                 VectorCopy(ent->v.angles, ent->stepangles);
 390                         }
 391                         lerp = (cl.time - ent->persistent.steplerptime) * 10.0;
 392                         if (lerp < 1)
 393                         {
 394                                 // origin
 395                                 VectorSubtract(ent->persistent.steporigin, ent->persistent.stepoldorigin, delta);
 396                                 VectorMA(ent->persistent.stepoldorigin, lerp, delta, neworg);
 397
 398                                 // angles
 399                                 VectorSubtract(ent->persistent.stepangles, ent->persistent.stepoldangles, delta);
 400                                 // choose shortest rotate (to avoid 'spin around' situations)
 401                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 402                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 403                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 404                                 VectorMA(ent->stepoldangles, lerp, delta, ent->render.angles);
 405                         }
 406                         else
 407                         {
 408                                 VectorCopy(ent->persistent.steporigin, neworg);
 409                                 VectorCopy(ent->persistent.stepangles, ent->render.angles);
 410                         }
 411                 }
 412                 */
 413                 else
 414                 {
 415                         /*
 416                         // monster interpolation
 417                         ent->persistent.steplerptime = 0;
 418                         VectorCopy(ent->state_current.origin, ent->persistent.stepoldorigin);
 419                         VectorCopy(ent->state_current.angles, ent->persistent.stepoldangles);
 420                         VectorCopy(ent->state_current.origin, ent->persistent.steporigin);
 421                         VectorCopy(ent->state_current.angles, ent->persistent.stepangles);
 422                         */
 423
 424                         // if the delta is large, assume a teleport and don't lerp
 425                         VectorSubtract(ent->state_current.origin, ent->state_previous.origin, delta);
 426                         // LordHavoc: increased tolerance from 100 to 200, and now to 1000
 427                         if ((sv.active && svs.maxclients == 1 && !(ent->state_current.flags & RENDER_STEP)) || cls.timedemo || DotProduct(delta, delta) > 1000*1000 || cl_nolerp.integer)
 428                                 lerp = 1;
 429                         else
 430                         {
 431                                 f = ent->state_current.time - ent->state_previous.time;
 432                                 if (f > 0)
 433                                         lerp = (cl.time - ent->state_previous.time) / f;
 434                                 else
 435                                         lerp = 1;
 436                         }
 437                         if (lerp >= 1)
 438                         {
 439                                 // no interpolation
 440                                 VectorCopy (ent->state_current.origin, neworg);
 441                                 VectorCopy (ent->state_current.angles, ent->render.angles);
 442                         }
 443                         else
 444                         {
 445                                 // interpolate the origin and angles
 446                                 VectorMA(ent->state_previous.origin, lerp, delta, neworg);
 447                                 VectorSubtract(ent->state_current.angles, ent->state_previous.angles, delta);
 448                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 449                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 450                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 451                                 VectorMA(ent->state_previous.angles, lerp, delta, ent->render.angles);
 452                         }
 453                 }
 454
 455                 VectorCopy (neworg, ent->persistent.trail_origin);
 456                 // persistent.modelindex will be updated by CL_LerpUpdate
 457                 if (ent->state_current.modelindex != ent->persistent.modelindex)
 458                         VectorCopy(neworg, oldorg);
 459
 460                 VectorCopy (neworg, ent->render.origin);
 461                 ent->render.flags = ent->state_current.flags;
 462                 ent->render.effects = effects = ent->state_current.effects;
 463                 if (cl.scores == NULL || !ent->state_current.colormap)
 464                         ent->render.colormap = -1; // no special coloring
 465                 else
 466                         ent->render.colormap = cl.scores[ent->state_current.colormap - 1].colors; // color it
 467                 ent->render.skinnum = ent->state_current.skin;
 468                 ent->render.alpha = ent->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
 469                 ent->render.scale = ent->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
 470
 471                 // update interpolation info
 472                 CL_LerpUpdate(ent);
 473
 474                 // handle effects now...
 475                 dlightradius = 0;
 476                 dlightcolor[0] = 0;
 477                 dlightcolor[1] = 0;
 478                 dlightcolor[2] = 0;
 479
 480                 // LordHavoc: if the entity has no effects, don't check each
 481                 if (effects)
 482                 {
 483                         if (effects & EF_BRIGHTFIELD)
 484                                 CL_EntityParticles (ent);
 485                         if (effects & EF_MUZZLEFLASH)
 486                         {
 487                                 vec3_t v, v2;
 488
 489                                 AngleVectors (ent->render.angles, v, NULL, NULL);
 490
 491                                 v2[0] = v[0] * 18 + neworg[0];
 492                                 v2[1] = v[1] * 18 + neworg[1];
 493                                 v2[2] = v[2] * 18 + neworg[2] + 16;
 494                                 TraceLine(neworg, v2, v, NULL, 0, true);
 495
 496                                 CL_AllocDlight (NULL, v, 100, 1, 1, 1, 0, 0);
 497                         }
 498                         if (effects & EF_DIMLIGHT)
 499                         {
 500                                 dlightcolor[0] += 200.0f;
 501                                 dlightcolor[1] += 200.0f;
 502                                 dlightcolor[2] += 200.0f;
 503                         }
 504                         if (effects & EF_BRIGHTLIGHT)
 505                         {
 506                                 dlightcolor[0] += 400.0f;
 507                                 dlightcolor[1] += 400.0f;
 508                                 dlightcolor[2] += 400.0f;
 509                         }
 510                         // LordHavoc: added EF_RED and EF_BLUE
 511                         if (effects & EF_RED) // red
 512                         {
 513                                 dlightcolor[0] += 200.0f;
 514                                 dlightcolor[1] +=  20.0f;
 515                                 dlightcolor[2] +=  20.0f;
 516                         }
 517                         if (effects & EF_BLUE) // blue
 518                         {
 519                                 dlightcolor[0] +=  20.0f;
 520                                 dlightcolor[1] +=  20.0f;
 521                                 dlightcolor[2] += 200.0f;
 522                         }
 523                         if (effects & EF_FLAME)
 524                         {
 525                                 if (ent->render.model)
 526                                 {
 527                                         vec3_t mins, maxs;
 528                                         int temp;
 529                                         if (ent->render.angles[0] || ent->render.angles[2])
 530                                         {
 531                                                 VectorAdd(neworg, ent->render.model->rotatedmins, mins);
 532                                                 VectorAdd(neworg, ent->render.model->rotatedmaxs, maxs);
 533                                         }
 534                                         else if (ent->render.angles[1])
 535                                         {
 536                                                 VectorAdd(neworg, ent->render.model->yawmins, mins);
 537                                                 VectorAdd(neworg, ent->render.model->yawmaxs, maxs);
 538                                         }
 539                                         else
 540                                         {
 541                                                 VectorAdd(neworg, ent->render.model->normalmins, mins);
 542                                                 VectorAdd(neworg, ent->render.model->normalmaxs, maxs);
 543                                         }
 544                                         // how many flames to make
 545                                         temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
 546                                         CL_FlameCube(mins, maxs, temp);
 547                                 }
 548                                 d = lhrandom(200, 250);
 549                                 dlightcolor[0] += d * 1.0f;
 550                                 dlightcolor[1] += d * 0.7f;
 551                                 dlightcolor[2] += d * 0.3f;
 552                         }
 553                 }
 554
 555                 // LordHavoc: if the model has no flags, don't check each
 556                 if (ent->render.model && ent->render.model->flags)
 557                 {
 558                         if (ent->render.model->flags & EF_ROTATE)
 559                         {
 560                                 ent->render.angles[1] = bobjrotate;
 561                                 ent->render.origin[2] += bobjoffset;
 562                         }
 563                         // only do trails if present in the previous frame as well
 564                         if (ent->state_previous.active)
 565                         {
 566                                 if (ent->render.model->flags & EF_GIB)
 567                                         CL_RocketTrail (oldorg, neworg, 2, ent);
 568                                 else if (ent->render.model->flags & EF_ZOMGIB)
 569                                         CL_RocketTrail (oldorg, neworg, 4, ent);
 570                                 else if (ent->render.model->flags & EF_TRACER)
 571                                         CL_RocketTrail (oldorg, neworg, 3, ent);
 572                                 else if (ent->render.model->flags & EF_TRACER2)
 573                                         CL_RocketTrail (oldorg, neworg, 5, ent);
 574                                 else if (ent->render.model->flags & EF_ROCKET)
 575                                 {
 576                                         CL_RocketTrail (oldorg, ent->render.origin, 0, ent);
 577                                         // LordHavoc: changed from 200, 160, 80 to 250, 200, 100
 578                                         dlightcolor[0] += 250.0f;
 579                                         dlightcolor[1] += 200.0f;
 580                                         dlightcolor[2] += 100.0f;
 581                                 }
 582                                 else if (ent->render.model->flags & EF_GRENADE)
 583                                 {
 584                                         if (ent->render.alpha == -1) // LordHavoc: Nehahra dem compatibility
 585                                                 CL_RocketTrail (oldorg, neworg, 7, ent);
 586                                         else
 587                                                 CL_RocketTrail (oldorg, neworg, 1, ent);
 588                                 }
 589                                 else if (ent->render.model->flags & EF_TRACER3)
 590                                         CL_RocketTrail (oldorg, neworg, 6, ent);
 591                         }
 592                 }
 593                 // LordHavoc: customizable glow
 594                 glowsize = ent->state_current.glowsize * 4.0f; // FIXME: interpolate?
 595                 glowcolor = ent->state_current.glowcolor;
 596                 if (glowsize)
 597                 {
 598                         qbyte *tempcolor = (qbyte *)&d_8to24table[glowcolor];
 599                         dlightcolor[0] += glowsize * tempcolor[0] * (1.0f / 255.0f);
 600                         dlightcolor[1] += glowsize * tempcolor[1] * (1.0f / 255.0f);
 601                         dlightcolor[2] += glowsize * tempcolor[2] * (1.0f / 255.0f);
 602                 }
 603                 // LordHavoc: customizable trail
 604                 if (ent->render.flags & RENDER_GLOWTRAIL)
 605                         CL_RocketTrail2 (oldorg, neworg, glowcolor, ent);
 606
 607                 if (dlightcolor[0] || dlightcolor[1] || dlightcolor[2])
 608                 {
 609                         vec3_t vec;
 610                         dlightradius = VectorLength(dlightcolor);
 611                         d = 1.0f / dlightradius;
 612                         VectorCopy(neworg, vec);
 613                         // hack to make glowing player light shine on their gun
 614                         if (i == cl.viewentity && !chase_active.integer)
 615                                 vec[2] += 30;
 616                         CL_AllocDlight (/*&ent->render*/ NULL, vec, dlightradius, dlightcolor[0] * d, dlightcolor[1] * d, dlightcolor[2] * d, 0, 0);
 617                 }
 618
 619                 if (chase_active.integer)
 620                 {
 621                         if (ent->render.flags & RENDER_VIEWMODEL)
 622                                 continue;
 623                 }
 624                 else
 625                 {
 626                         if (i == cl.viewentity || (ent->render.flags & RENDER_EXTERIORMODEL))
 627                                 continue;
 628                 }
 629
 630                 if (ent->render.model == NULL)
 631                         continue;
 632                 if (effects & EF_NODRAW)
 633                         continue;
 634                 if (r_refdef.numentities < MAX_VISEDICTS)
 635                         r_refdef.entities[r_refdef.numentities++] = &ent->render;
 636         }
 637 }
 638
 639 void CL_LerpPlayer(float frac)
 640 {
 641         int i;
 642         float d;
 643
 644         if (cl.entitydatabase.numframes)
 645         {
 646                 cl.viewentorigin[0] = cl.viewentoriginold[0] + frac * (cl.viewentoriginnew[0] - cl.viewentoriginold[0]);
 647                 cl.viewentorigin[1] = cl.viewentoriginold[1] + frac * (cl.viewentoriginnew[1] - cl.viewentoriginold[1]);
 648                 cl.viewentorigin[2] = cl.viewentoriginold[2] + frac * (cl.viewentoriginnew[2] - cl.viewentoriginold[2]);
 649         }
 650         else
 651                 VectorCopy (cl_entities[cl.viewentity].render.origin, cl.viewentorigin);
 652
 653         cl.viewzoom = cl.viewzoomold + frac * (cl.viewzoomnew - cl.viewzoomold);
 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         float frac;
 751
 752         // fraction from previous network update to current
 753         frac = CL_LerpPoint ();
 754
 755         CL_DecayLights ();
 756         CL_RelinkStaticEntities();
 757         CL_RelinkNetworkEntities();
 758         TraceLine_ScanForBModels();
 759         CL_RelinkEffects();
 760         CL_MoveParticles();
 761         CL_UpdateTEnts();
 762
 763         CL_LerpPlayer(frac);
 764 }
 765
 766
 767 /*
 768 ===============
 769 CL_ReadFromServer
 770
 771 Read all incoming data from the server
 772 ===============
 773 */
 774 int CL_ReadFromServer (void)
 775 {
 776         int ret, netshown;
 777
 778         cl.oldtime = cl.time;
 779         cl.time += cl.frametime;
 780
 781         netshown = false;
 782         do
 783         {
 784                 ret = CL_GetMessage ();
 785                 if (ret == -1)
 786                         Host_Error ("CL_ReadFromServer: lost server connection");
 787                 if (!ret)
 788                         break;
 789
 790                 cl.last_received_message = realtime;
 791
 792                 if (cl_shownet.integer)
 793                         netshown = true;
 794
 795                 CL_ParseServerMessage ();
 796         }
 797         while (ret && cls.state == ca_connected);
 798
 799         if (netshown)
 800                 Con_Printf ("\n");
 801
 802         r_refdef.numentities = 0;
 803         if (cls.state == ca_connected && cl.worldmodel)
 804         {
 805                 CL_RelinkEntities ();
 806
 807                 // run cgame code (which can add more entities)
 808                 CL_CGVM_Frame();
 809         }
 810
 811 //
 812 // bring the links up to date
 813 //
 814         return 0;
 815 }
 816
 817 /*
 818 =================
 819 CL_SendCmd
 820 =================
 821 */
 822 void CL_SendCmd (void)
 823 {
 824         usercmd_t               cmd;
 825
 826         if (cls.state != ca_connected)
 827                 return;
 828
 829         if (cls.signon == SIGNONS)
 830         {
 831         // get basic movement from keyboard
 832                 CL_BaseMove (&cmd);
 833
 834                 IN_PreMove(); // OS independent code
 835
 836         // allow mice or other external controllers to add to the move
 837                 IN_Move (&cmd);
 838
 839                 IN_PostMove(); // OS independent code
 840
 841         // send the unreliable message
 842                 CL_SendMove (&cmd);
 843         }
 844         else
 845         {
 846                 // LordHavoc: fix for NAT routing of netquake:
 847                 // bounce back a clc_nop message to the newly allocated server port,
 848                 // to establish a routing connection for incoming frames,
 849                 // the server waits for this before sending anything
 850                 if (realtime > cl.sendnoptime)
 851                 {
 852                         Con_DPrintf("sending clc_nop to get server's attention\n");
 853                         cl.sendnoptime = realtime + 3;
 854                         MSG_WriteByte(&cls.message, clc_nop);
 855                 }
 856         }
 857
 858         if (cls.demoplayback)
 859         {
 860                 SZ_Clear (&cls.message);
 861                 return;
 862         }
 863
 864 // send the reliable message
 865         if (!cls.message.cursize)
 866                 return;         // no message at all
 867
 868         if (!NET_CanSendMessage (cls.netcon))
 869         {
 870                 Con_DPrintf ("CL_WriteToServer: can't send\n");
 871                 return;
 872         }
 873
 874         if (NET_SendMessage (cls.netcon, &cls.message) == -1)
 875                 Host_Error ("CL_WriteToServer: lost server connection");
 876
 877         SZ_Clear (&cls.message);
 878 }
 879
 880 // LordHavoc: pausedemo command
 881 static void CL_PauseDemo_f (void)
 882 {
 883         cls.demopaused = !cls.demopaused;
 884         if (cls.demopaused)
 885                 Con_Printf("Demo paused\n");
 886         else
 887                 Con_Printf("Demo unpaused\n");
 888 }
 889
 890 /*
 891 ======================
 892 CL_PModel_f
 893 LordHavoc: Intended for Nehahra, I personally think this is dumb, but Mindcrime won't listen.
 894 ======================
 895 */
 896 static void CL_PModel_f (void)
 897 {
 898         int i;
 899         eval_t *val;
 900
 901         if (Cmd_Argc () == 1)
 902         {
 903                 Con_Printf ("\"pmodel\" is \"%s\"\n", cl_pmodel.string);
 904                 return;
 905         }
 906         i = atoi(Cmd_Argv(1));
 907
 908         if (cmd_source == src_command)
 909         {
 910                 if (cl_pmodel.integer == i)
 911                         return;
 912                 Cvar_SetValue ("_cl_pmodel", i);
 913                 if (cls.state == ca_connected)
 914                         Cmd_ForwardToServer ();
 915                 return;
 916         }
 917
 918         host_client->pmodel = i;
 919         if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_pmodel)))
 920                 val->_float = i;
 921 }
 922
 923 /*
 924 ======================
 925 CL_Fog_f
 926 ======================
 927 */
 928 static void CL_Fog_f (void)
 929 {
 930         if (Cmd_Argc () == 1)
 931         {
 932                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
 933                 return;
 934         }
 935         fog_density = atof(Cmd_Argv(1));
 936         fog_red = atof(Cmd_Argv(2));
 937         fog_green = atof(Cmd_Argv(3));
 938         fog_blue = atof(Cmd_Argv(4));
 939 }
 940
 941 /*
 942 =================
 943 CL_Init
 944 =================
 945 */
 946 void CL_Init (void)
 947 {
 948         cl_scores_mempool = Mem_AllocPool("client player info");
 949
 950         cl_refdef_mempool = Mem_AllocPool("refdef");
 951         memset(&r_refdef, 0, sizeof(r_refdef));
 952         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * MAX_VISEDICTS);
 953
 954         SZ_Alloc (&cls.message, 1024, "cls.message");
 955
 956         CL_InitInput ();
 957         CL_InitTEnts ();
 958
 959 //
 960 // register our commands
 961 //
 962         Cvar_RegisterVariable (&cl_name);
 963         Cvar_RegisterVariable (&cl_color);
 964         if (gamemode == GAME_NEHAHRA)
 965                 Cvar_RegisterVariable (&cl_pmodel);
 966         Cvar_RegisterVariable (&cl_upspeed);
 967         Cvar_RegisterVariable (&cl_forwardspeed);
 968         Cvar_RegisterVariable (&cl_backspeed);
 969         Cvar_RegisterVariable (&cl_sidespeed);
 970         Cvar_RegisterVariable (&cl_movespeedkey);
 971         Cvar_RegisterVariable (&cl_yawspeed);
 972         Cvar_RegisterVariable (&cl_pitchspeed);
 973         Cvar_RegisterVariable (&cl_anglespeedkey);
 974         Cvar_RegisterVariable (&cl_shownet);
 975         Cvar_RegisterVariable (&cl_nolerp);
 976         Cvar_RegisterVariable (&lookspring);
 977         Cvar_RegisterVariable (&lookstrafe);
 978         Cvar_RegisterVariable (&sensitivity);
 979         Cvar_RegisterVariable (&freelook);
 980
 981         Cvar_RegisterVariable (&m_pitch);
 982         Cvar_RegisterVariable (&m_yaw);
 983         Cvar_RegisterVariable (&m_forward);
 984         Cvar_RegisterVariable (&m_side);
 985
 986         Cvar_RegisterVariable (&cl_itembobspeed);
 987         Cvar_RegisterVariable (&cl_itembobheight);
 988
 989         Cmd_AddCommand ("entities", CL_PrintEntities_f);
 990         Cmd_AddCommand ("bitprofile", CL_BitProfile_f);
 991         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
 992         Cmd_AddCommand ("record", CL_Record_f);
 993         Cmd_AddCommand ("stop", CL_Stop_f);
 994         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
 995         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
 996
 997         Cmd_AddCommand ("fog", CL_Fog_f);
 998
 999         // LordHavoc: added pausedemo
1000         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
1001         if (gamemode == GAME_NEHAHRA)
1002                 Cmd_AddCommand ("pmodel", CL_PModel_f);
1003
1004         Cvar_RegisterVariable(&cl_draweffects);
1005
1006         CL_Parse_Init();
1007         CL_Particles_Init();
1008         CL_Screen_Init();
1009         CL_CGVM_Init();
1010 }