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         if (cls.state == ca_dedicated)
 231                 return;
 232
 233         if (cls.demoplayback)
 234                 return;
 235
 236         CL_Disconnect ();
 237
 238         cls.netcon = NET_Connect (host);
 239         if (!cls.netcon)
 240                 Host_Error ("CL_Connect: connect failed\n");
 241         Con_DPrintf ("CL_EstablishConnection: connected to %s\n", host);
 242
 243         cls.demonum = -1;                       // not in the demo loop now
 244         cls.state = ca_connected;
 245         cls.signon = 0;                         // need all the signon messages before playing
 246
 247         CL_ClearState ();
 248 }
 249
 250 /*
 251 ==============
 252 CL_PrintEntities_f
 253 ==============
 254 */
 255 static void CL_PrintEntities_f (void)
 256 {
 257         entity_t        *ent;
 258         int                     i, j;
 259         char            name[32];
 260
 261         for (i = 0, ent = cl_entities;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
 262         {
 263                 if (!ent->state_current.active)
 264                         continue;
 265                 if (!ent->render.model)
 266                         continue;
 267
 268                 Con_Printf ("%3i:", i);
 269                 if (!ent->render.model)
 270                 {
 271                         Con_Printf ("EMPTY\n");
 272                         continue;
 273                 }
 274                 strncpy(name, ent->render.model->name, 25);
 275                 name[25] = 0;
 276                 for (j = strlen(name);j < 25;j++)
 277                         name[j] = ' ';
 278                 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);
 279         }
 280 }
 281
 282
 283 /*
 284 ===============
 285 CL_LerpPoint
 286
 287 Determines the fraction between the last two messages that the objects
 288 should be put at.
 289 ===============
 290 */
 291 static float CL_LerpPoint (void)
 292 {
 293         float   f;
 294
 295         // dropped packet, or start of demo
 296         if (cl.mtime[1] < cl.mtime[0] - 0.1)
 297                 cl.mtime[1] = cl.mtime[0] - 0.1;
 298
 299         cl.time = bound(cl.mtime[1], cl.time, cl.mtime[0]);
 300
 301         // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
 302         f = cl.mtime[0] - cl.mtime[1];
 303         if (!f || cl_nolerp.integer || cls.timedemo || (sv.active && svs.maxclients == 1))
 304         {
 305                 cl.time = cl.mtime[0];
 306                 return 1;
 307         }
 308
 309         f = (cl.time - cl.mtime[1]) / f;
 310         return bound(0, f, 1);
 311 }
 312
 313 static void CL_RelinkStaticEntities(void)
 314 {
 315         int i;
 316         for (i = 0;i < cl.num_statics && r_refdef.numentities < MAX_VISEDICTS;i++)
 317         {
 318                 Mod_CheckLoaded(cl_static_entities[i].render.model);
 319                 r_refdef.entities[r_refdef.numentities++] = &cl_static_entities[i].render;
 320         }
 321 }
 322
 323 /*
 324 ===============
 325 CL_RelinkEntities
 326 ===============
 327 */
 328 static void CL_RelinkNetworkEntities()
 329 {
 330         entity_t        *ent;
 331         int                     i, glowcolor, effects;
 332         float           f, d, bobjrotate, bobjoffset, dlightradius, glowsize, lerp;
 333         vec3_t          oldorg, neworg, delta, dlightcolor;
 334
 335         bobjrotate = ANGLEMOD(100*cl.time);
 336         if (cl_itembobheight.value)
 337                 bobjoffset = (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
 338         else
 339                 bobjoffset = 0;
 340
 341 // start on the entity after the world
 342         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
 343         {
 344                 // if the object wasn't included in the latest packet, remove it
 345                 if (!ent->state_current.active)
 346                         continue;
 347
 348                 VectorCopy(ent->persistent.trail_origin, oldorg);
 349
 350                 if (!ent->state_previous.active)
 351                 {
 352                         // only one state available
 353                         lerp = 1;
 354                         VectorCopy (ent->state_current.origin, oldorg); // skip trails
 355                         VectorCopy (ent->state_current.origin, neworg);
 356                         VectorCopy (ent->state_current.angles, ent->render.angles);
 357
 358                         /*
 359                         // monster interpolation
 360                         ent->persistent.steplerptime = 0;
 361                         VectorCopy(ent->state_current.origin, ent->persistent.stepoldorigin);
 362                         VectorCopy(ent->state_current.angles, ent->persistent.stepoldangles);
 363                         VectorCopy(ent->state_current.origin, ent->persistent.steporigin);
 364                         VectorCopy(ent->state_current.angles, ent->persistent.stepangles);
 365                         */
 366                 }
 367                 /*
 368                 else if ((ent->state_current.flags & ent->state_previous.flags) & ENTFLAG_STEP)
 369                 {
 370                         if (ent->state_current.origin[0] != ent->persistent.steporigin[0]
 371                          || ent->state_current.origin[1] != ent->persistent.steporigin[1]
 372                          || ent->state_current.origin[2] != ent->persistent.steporigin[2]
 373                          || ent->state_current.angles[0] != ent->persistent.stepangles[0]
 374                          || ent->state_current.angles[1] != ent->persistent.stepangles[1]
 375                          || ent->state_current.angles[2] != ent->persistent.stepangles[2])
 376                         {
 377                                 // update lerp positions
 378                                 ent->clientpersistent.steplerptime = sv.time;
 379                                 VectorCopy(ent->steporigin, ent->stepoldorigin);
 380                                 VectorCopy(ent->stepangles, ent->stepoldangles);
 381                                 VectorCopy(ent->v.origin, ent->steporigin);
 382                                 VectorCopy(ent->v.angles, ent->stepangles);
 383                         }
 384                         lerp = (cl.time - ent->persistent.steplerptime) * 10.0;
 385                         if (lerp < 1)
 386                         {
 387                                 // origin
 388                                 VectorSubtract(ent->persistent.steporigin, ent->persistent.stepoldorigin, delta);
 389                                 VectorMA(ent->persistent.stepoldorigin, lerp, delta, neworg);
 390
 391                                 // angles
 392                                 VectorSubtract(ent->persistent.stepangles, ent->persistent.stepoldangles, delta);
 393                                 // choose shortest rotate (to avoid 'spin around' situations)
 394                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 395                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 396                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 397                                 VectorMA(ent->stepoldangles, lerp, delta, ent->render.angles);
 398                         }
 399                         else
 400                         {
 401                                 VectorCopy(ent->persistent.steporigin, neworg);
 402                                 VectorCopy(ent->persistent.stepangles, ent->render.angles);
 403                         }
 404                 }
 405                 */
 406                 else
 407                 {
 408                         /*
 409                         // monster interpolation
 410                         ent->persistent.steplerptime = 0;
 411                         VectorCopy(ent->state_current.origin, ent->persistent.stepoldorigin);
 412                         VectorCopy(ent->state_current.angles, ent->persistent.stepoldangles);
 413                         VectorCopy(ent->state_current.origin, ent->persistent.steporigin);
 414                         VectorCopy(ent->state_current.angles, ent->persistent.stepangles);
 415                         */
 416
 417                         // if the delta is large, assume a teleport and don't lerp
 418                         VectorSubtract(ent->state_current.origin, ent->state_previous.origin, delta);
 419                         // LordHavoc: increased tolerance from 100 to 200, and now to 1000
 420                         if ((sv.active && svs.maxclients == 1 && !(ent->state_current.flags & RENDER_STEP)) || cls.timedemo || DotProduct(delta, delta) > 1000*1000 || cl_nolerp.integer)
 421                                 lerp = 1;
 422                         else
 423                         {
 424                                 f = ent->state_current.time - ent->state_previous.time;
 425                                 if (f > 0)
 426                                         lerp = (cl.time - ent->state_previous.time) / f;
 427                                 else
 428                                         lerp = 1;
 429                         }
 430                         if (lerp >= 1)
 431                         {
 432                                 // no interpolation
 433                                 VectorCopy (ent->state_current.origin, neworg);
 434                                 VectorCopy (ent->state_current.angles, ent->render.angles);
 435                         }
 436                         else
 437                         {
 438                                 // interpolate the origin and angles
 439                                 VectorMA(ent->state_previous.origin, lerp, delta, neworg);
 440                                 VectorSubtract(ent->state_current.angles, ent->state_previous.angles, delta);
 441                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 442                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 443                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 444                                 VectorMA(ent->state_previous.angles, lerp, delta, ent->render.angles);
 445                         }
 446                 }
 447
 448                 VectorCopy (neworg, ent->persistent.trail_origin);
 449                 // persistent.modelindex will be updated by CL_LerpUpdate
 450                 if (ent->state_current.modelindex != ent->persistent.modelindex)
 451                         VectorCopy(neworg, oldorg);
 452
 453                 VectorCopy (neworg, ent->render.origin);
 454                 ent->render.flags = ent->state_current.flags;
 455                 ent->render.effects = effects = ent->state_current.effects;
 456                 if (cl.scores == NULL || !ent->state_current.colormap)
 457                         ent->render.colormap = -1; // no special coloring
 458                 else
 459                         ent->render.colormap = cl.scores[ent->state_current.colormap - 1].colors; // color it
 460                 ent->render.skinnum = ent->state_current.skin;
 461                 ent->render.alpha = ent->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
 462                 ent->render.scale = ent->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
 463
 464                 // update interpolation info
 465                 CL_LerpUpdate(ent);
 466
 467                 // handle effects now...
 468                 dlightradius = 0;
 469                 dlightcolor[0] = 0;
 470                 dlightcolor[1] = 0;
 471                 dlightcolor[2] = 0;
 472
 473                 // LordHavoc: if the entity has no effects, don't check each
 474                 if (effects)
 475                 {
 476                         if (effects & EF_BRIGHTFIELD)
 477                                 CL_EntityParticles (ent);
 478                         if (effects & EF_MUZZLEFLASH)
 479                         {
 480                                 vec3_t v, v2;
 481
 482                                 AngleVectors (ent->render.angles, v, NULL, NULL);
 483
 484                                 v2[0] = v[0] * 18 + neworg[0];
 485                                 v2[1] = v[1] * 18 + neworg[1];
 486                                 v2[2] = v[2] * 18 + neworg[2] + 16;
 487                                 TraceLine(neworg, v2, v, NULL, 0, true);
 488
 489                                 CL_AllocDlight (NULL, v, 100, 1, 1, 1, 0, 0);
 490                         }
 491                         if (effects & EF_DIMLIGHT)
 492                         {
 493                                 dlightcolor[0] += 200.0f;
 494                                 dlightcolor[1] += 200.0f;
 495                                 dlightcolor[2] += 200.0f;
 496                         }
 497                         if (effects & EF_BRIGHTLIGHT)
 498                         {
 499                                 dlightcolor[0] += 400.0f;
 500                                 dlightcolor[1] += 400.0f;
 501                                 dlightcolor[2] += 400.0f;
 502                         }
 503                         // LordHavoc: added EF_RED and EF_BLUE
 504                         if (effects & EF_RED) // red
 505                         {
 506                                 dlightcolor[0] += 200.0f;
 507                                 dlightcolor[1] +=  20.0f;
 508                                 dlightcolor[2] +=  20.0f;
 509                         }
 510                         if (effects & EF_BLUE) // blue
 511                         {
 512                                 dlightcolor[0] +=  20.0f;
 513                                 dlightcolor[1] +=  20.0f;
 514                                 dlightcolor[2] += 200.0f;
 515                         }
 516                         if (effects & EF_FLAME)
 517                         {
 518                                 if (ent->render.model)
 519                                 {
 520                                         vec3_t mins, maxs;
 521                                         int temp;
 522                                         /*
 523                                         if (ent->render.angles[0] || ent->render.angles[2])
 524                                         {
 525                                                 VectorMA(neworg, 0.25f, ent->render.model->rotatedmins, mins);
 526                                                 VectorMA(neworg, 0.25f, ent->render.model->rotatedmaxs, maxs);
 527                                         }
 528                                         else if (ent->render.angles[1])
 529                                         {
 530                                                 VectorMA(neworg, 0.25f, ent->render.model->yawmins, mins);
 531                                                 VectorMA(neworg, 0.25f, ent->render.model->yawmaxs, maxs);
 532                                         }
 533                                         else
 534                                         {
 535                                                 VectorMA(neworg, 0.25f, ent->render.model->normalmins, mins);
 536                                                 VectorMA(neworg, 0.25f, ent->render.model->normalmaxs, maxs);
 537                                         }
 538                                         */
 539                                         mins[0] = neworg[0] - 16.0f;
 540                                         mins[1] = neworg[1] - 16.0f;
 541                                         mins[2] = neworg[2] - 16.0f;
 542                                         maxs[0] = neworg[0] + 16.0f;
 543                                         maxs[1] = neworg[1] + 16.0f;
 544                                         maxs[2] = neworg[2] + 16.0f;
 545                                         // how many flames to make
 546                                         temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
 547                                         CL_FlameCube(mins, maxs, temp);
 548                                 }
 549                                 d = lhrandom(200, 250);
 550                                 dlightcolor[0] += d * 1.0f;
 551                                 dlightcolor[1] += d * 0.7f;
 552                                 dlightcolor[2] += d * 0.3f;
 553                         }
 554                         if (effects & EF_STARDUST)
 555                         {
 556                                 if (ent->render.model)
 557                                 {
 558                                         vec3_t mins, maxs;
 559                                         int temp;
 560                                         /*
 561                                         if (ent->render.angles[0] || ent->render.angles[2])
 562                                         {
 563                                                 VectorMA(neworg, 0.25f, ent->render.model->rotatedmins, mins);
 564                                                 VectorMA(neworg, 0.25f, ent->render.model->rotatedmaxs, maxs);
 565                                         }
 566                                         else if (ent->render.angles[1])
 567                                         {
 568                                                 VectorMA(neworg, 0.25f, ent->render.model->yawmins, mins);
 569                                                 VectorMA(neworg, 0.25f, ent->render.model->yawmaxs, maxs);
 570                                         }
 571                                         else
 572                                         {
 573                                                 VectorMA(neworg, 0.25f, ent->render.model->normalmins, mins);
 574                                                 VectorMA(neworg, 0.25f, ent->render.model->normalmaxs, maxs);
 575                                         }
 576                                         */
 577                                         mins[0] = neworg[0] - 16.0f;
 578                                         mins[1] = neworg[1] - 16.0f;
 579                                         mins[2] = neworg[2] - 16.0f;
 580                                         maxs[0] = neworg[0] + 16.0f;
 581                                         maxs[1] = neworg[1] + 16.0f;
 582                                         maxs[2] = neworg[2] + 16.0f;
 583                                         // how many particles to make
 584                                         temp = (int) (cl.time * 200) - (int) (cl.oldtime * 200);
 585                                         CL_Stardust(mins, maxs, temp);
 586                                 }
 587                                 d = 100;
 588                                 dlightcolor[0] += d * 1.0f;
 589                                 dlightcolor[1] += d * 0.7f;
 590                                 dlightcolor[2] += d * 0.3f;
 591                         }
 592                 }
 593
 594                 // LordHavoc: if the model has no flags, don't check each
 595                 if (ent->render.model && ent->render.model->flags)
 596                 {
 597                         if (ent->render.model->flags & EF_ROTATE)
 598                         {
 599                                 ent->render.angles[1] = bobjrotate;
 600                                 ent->render.origin[2] += bobjoffset;
 601                         }
 602                         // only do trails if present in the previous frame as well
 603                         if (ent->state_previous.active)
 604                         {
 605                                 if (ent->render.model->flags & EF_GIB)
 606                                         CL_RocketTrail (oldorg, neworg, 2, ent);
 607                                 else if (ent->render.model->flags & EF_ZOMGIB)
 608                                         CL_RocketTrail (oldorg, neworg, 4, ent);
 609                                 else if (ent->render.model->flags & EF_TRACER)
 610                                         CL_RocketTrail (oldorg, neworg, 3, ent);
 611                                 else if (ent->render.model->flags & EF_TRACER2)
 612                                         CL_RocketTrail (oldorg, neworg, 5, ent);
 613                                 else if (ent->render.model->flags & EF_ROCKET)
 614                                 {
 615                                         CL_RocketTrail (oldorg, ent->render.origin, 0, ent);
 616                                         dlightcolor[0] += 200.0f;
 617                                         dlightcolor[1] += 160.0f;
 618                                         dlightcolor[2] +=  80.0f;
 619                                 }
 620                                 else if (ent->render.model->flags & EF_GRENADE)
 621                                 {
 622                                         if (ent->render.alpha == -1) // LordHavoc: Nehahra dem compatibility
 623                                                 CL_RocketTrail (oldorg, neworg, 7, ent);
 624                                         else
 625                                                 CL_RocketTrail (oldorg, neworg, 1, ent);
 626                                 }
 627                                 else if (ent->render.model->flags & EF_TRACER3)
 628                                         CL_RocketTrail (oldorg, neworg, 6, ent);
 629                         }
 630                 }
 631                 // LordHavoc: customizable glow
 632                 glowsize = ent->state_current.glowsize; // FIXME: interpolate?
 633                 glowcolor = ent->state_current.glowcolor;
 634                 if (glowsize)
 635                 {
 636                         qbyte *tempcolor = (qbyte *)&d_8to24table[glowcolor];
 637                         // * 4 for the expansion from 0-255 to 0-1023 range,
 638                         // / 255 to scale down byte colors
 639                         glowsize *= (4.0f / 255.0f);
 640                         VectorMA(dlightcolor, glowsize, tempcolor, dlightcolor);
 641                 }
 642                 // LordHavoc: customizable trail
 643                 if (ent->render.flags & RENDER_GLOWTRAIL)
 644                         CL_RocketTrail2 (oldorg, neworg, glowcolor, ent);
 645
 646                 if (dlightcolor[0] || dlightcolor[1] || dlightcolor[2])
 647                 {
 648                         vec3_t vec;
 649                         VectorCopy(neworg, vec);
 650                         // hack to make glowing player light shine on their gun
 651                         if (i == cl.viewentity && !chase_active.integer)
 652                                 vec[2] += 30;
 653                         CL_AllocDlight (/*&ent->render*/ NULL, vec, 1, dlightcolor[0], dlightcolor[1], dlightcolor[2], 0, 0);
 654                 }
 655
 656                 if (chase_active.integer)
 657                 {
 658                         if (ent->render.flags & RENDER_VIEWMODEL)
 659                                 continue;
 660                 }
 661                 else
 662                 {
 663                         if (i == cl.viewentity || (ent->render.flags & RENDER_EXTERIORMODEL))
 664                                 continue;
 665                 }
 666
 667                 if (ent->render.model == NULL)
 668                         continue;
 669                 if (effects & EF_NODRAW)
 670                         continue;
 671                 if (r_refdef.numentities < MAX_VISEDICTS)
 672                         r_refdef.entities[r_refdef.numentities++] = &ent->render;
 673         }
 674 }
 675
 676 void CL_LerpPlayer(float frac)
 677 {
 678         int i;
 679         float d;
 680
 681         if (cl.entitydatabase.numframes)
 682         {
 683                 cl.viewentorigin[0] = cl.viewentoriginold[0] + frac * (cl.viewentoriginnew[0] - cl.viewentoriginold[0]);
 684                 cl.viewentorigin[1] = cl.viewentoriginold[1] + frac * (cl.viewentoriginnew[1] - cl.viewentoriginold[1]);
 685                 cl.viewentorigin[2] = cl.viewentoriginold[2] + frac * (cl.viewentoriginnew[2] - cl.viewentoriginold[2]);
 686         }
 687         else
 688                 VectorCopy (cl_entities[cl.viewentity].render.origin, cl.viewentorigin);
 689
 690         cl.viewzoom = cl.viewzoomold + frac * (cl.viewzoomnew - cl.viewzoomold);
 691
 692         for (i = 0;i < 3;i++)
 693                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
 694
 695         if (cls.demoplayback)
 696         {
 697                 // interpolate the angles
 698                 for (i = 0;i < 3;i++)
 699                 {
 700                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
 701                         if (d > 180)
 702                                 d -= 360;
 703                         else if (d < -180)
 704                                 d += 360;
 705                         cl.viewangles[i] = cl.mviewangles[1][i] + frac*d;
 706                 }
 707         }
 708 }
 709
 710 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
 711 {
 712         int i;
 713         cl_effect_t *e;
 714         if (!modelindex) // sanity check
 715                 return;
 716         for (i = 0, e = cl_effect;i < MAX_EFFECTS;i++, e++)
 717         {
 718                 if (e->active)
 719                         continue;
 720                 e->active = true;
 721                 VectorCopy(org, e->origin);
 722                 e->modelindex = modelindex;
 723                 e->starttime = cl.time;
 724                 e->startframe = startframe;
 725                 e->endframe = startframe + framecount;
 726                 e->framerate = framerate;
 727
 728                 e->frame = 0;
 729                 e->frame1time = cl.time;
 730                 e->frame2time = cl.time;
 731                 break;
 732         }
 733 }
 734
 735 static void CL_RelinkEffects()
 736 {
 737         int i, intframe;
 738         cl_effect_t *e;
 739         entity_t *vis;
 740         float frame;
 741
 742         for (i = 0, e = cl_effect;i < MAX_EFFECTS;i++, e++)
 743         {
 744                 if (e->active)
 745                 {
 746                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
 747                         intframe = frame;
 748                         if (intframe < 0 || intframe >= e->endframe)
 749                         {
 750                                 e->active = false;
 751                                 memset(e, 0, sizeof(*e));
 752                                 continue;
 753                         }
 754
 755                         if (intframe != e->frame)
 756                         {
 757                                 e->frame = intframe;
 758                                 e->frame1time = e->frame2time;
 759                                 e->frame2time = cl.time;
 760                         }
 761
 762                         if ((vis = CL_NewTempEntity()))
 763                         {
 764                                 // interpolation stuff
 765                                 vis->render.frame1 = intframe;
 766                                 vis->render.frame2 = intframe + 1;
 767                                 if (vis->render.frame2 >= e->endframe)
 768                                         vis->render.frame2 = -1; // disappear
 769                                 vis->render.framelerp = frame - intframe;
 770                                 vis->render.frame1time = e->frame1time;
 771                                 vis->render.frame2time = e->frame2time;
 772
 773                                 // normal stuff
 774                                 VectorCopy(e->origin, vis->render.origin);
 775                                 vis->render.model = cl.model_precache[e->modelindex];
 776                                 vis->render.frame = vis->render.frame2;
 777                                 vis->render.colormap = -1; // no special coloring
 778                                 vis->render.scale = 1;
 779                                 vis->render.alpha = 1;
 780                         }
 781                 }
 782         }
 783 }
 784
 785 void CL_RelinkEntities (void)
 786 {
 787         float frac;
 788
 789         // fraction from previous network update to current
 790         frac = CL_LerpPoint ();
 791
 792         CL_DecayLights ();
 793         CL_RelinkStaticEntities();
 794         CL_RelinkNetworkEntities();
 795         TraceLine_ScanForBModels();
 796         CL_RelinkEffects();
 797         CL_MoveParticles();
 798         CL_UpdateTEnts();
 799
 800         CL_LerpPlayer(frac);
 801 }
 802
 803
 804 /*
 805 ===============
 806 CL_ReadFromServer
 807
 808 Read all incoming data from the server
 809 ===============
 810 */
 811 int CL_ReadFromServer (void)
 812 {
 813         int ret, netshown;
 814
 815         cl.oldtime = cl.time;
 816         cl.time += cl.frametime;
 817
 818         netshown = false;
 819         do
 820         {
 821                 ret = CL_GetMessage ();
 822                 if (ret == -1)
 823                         Host_Error ("CL_ReadFromServer: lost server connection");
 824                 if (!ret)
 825                         break;
 826
 827                 cl.last_received_message = realtime;
 828
 829                 if (cl_shownet.integer)
 830                         netshown = true;
 831
 832                 CL_ParseServerMessage ();
 833         }
 834         while (ret && cls.state == ca_connected);
 835
 836         if (netshown)
 837                 Con_Printf ("\n");
 838
 839         r_refdef.numentities = 0;
 840         if (cls.state == ca_connected && cl.worldmodel)
 841         {
 842                 CL_RelinkEntities ();
 843
 844                 // run cgame code (which can add more entities)
 845                 CL_CGVM_Frame();
 846         }
 847
 848 //
 849 // bring the links up to date
 850 //
 851         return 0;
 852 }
 853
 854 /*
 855 =================
 856 CL_SendCmd
 857 =================
 858 */
 859 void CL_SendCmd (void)
 860 {
 861         usercmd_t               cmd;
 862
 863         if (cls.state != ca_connected)
 864                 return;
 865
 866         if (cls.signon == SIGNONS)
 867         {
 868         // get basic movement from keyboard
 869                 CL_BaseMove (&cmd);
 870
 871                 IN_PreMove(); // OS independent code
 872
 873         // allow mice or other external controllers to add to the move
 874                 IN_Move (&cmd);
 875
 876                 IN_PostMove(); // OS independent code
 877
 878         // send the unreliable message
 879                 CL_SendMove (&cmd);
 880         }
 881
 882         if (cls.demoplayback)
 883         {
 884                 SZ_Clear (&cls.message);
 885                 return;
 886         }
 887
 888 // send the reliable message
 889         if (!cls.message.cursize)
 890                 return;         // no message at all
 891
 892         if (!NET_CanSendMessage (cls.netcon))
 893         {
 894                 Con_DPrintf ("CL_WriteToServer: can't send\n");
 895                 return;
 896         }
 897
 898         if (NET_SendMessage (cls.netcon, &cls.message) == -1)
 899                 Host_Error ("CL_WriteToServer: lost server connection");
 900
 901         SZ_Clear (&cls.message);
 902 }
 903
 904 // LordHavoc: pausedemo command
 905 static void CL_PauseDemo_f (void)
 906 {
 907         cls.demopaused = !cls.demopaused;
 908         if (cls.demopaused)
 909                 Con_Printf("Demo paused\n");
 910         else
 911                 Con_Printf("Demo unpaused\n");
 912 }
 913
 914 /*
 915 ======================
 916 CL_PModel_f
 917 LordHavoc: Intended for Nehahra, I personally think this is dumb, but Mindcrime won't listen.
 918 ======================
 919 */
 920 static void CL_PModel_f (void)
 921 {
 922         int i;
 923         eval_t *val;
 924
 925         if (Cmd_Argc () == 1)
 926         {
 927                 Con_Printf ("\"pmodel\" is \"%s\"\n", cl_pmodel.string);
 928                 return;
 929         }
 930         i = atoi(Cmd_Argv(1));
 931
 932         if (cmd_source == src_command)
 933         {
 934                 if (cl_pmodel.integer == i)
 935                         return;
 936                 Cvar_SetValue ("_cl_pmodel", i);
 937                 if (cls.state == ca_connected)
 938                         Cmd_ForwardToServer ();
 939                 return;
 940         }
 941
 942         host_client->pmodel = i;
 943         if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_pmodel)))
 944                 val->_float = i;
 945 }
 946
 947 /*
 948 ======================
 949 CL_Fog_f
 950 ======================
 951 */
 952 static void CL_Fog_f (void)
 953 {
 954         if (Cmd_Argc () == 1)
 955         {
 956                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
 957                 return;
 958         }
 959         fog_density = atof(Cmd_Argv(1));
 960         fog_red = atof(Cmd_Argv(2));
 961         fog_green = atof(Cmd_Argv(3));
 962         fog_blue = atof(Cmd_Argv(4));
 963 }
 964
 965 /*
 966 =================
 967 CL_Init
 968 =================
 969 */
 970 void CL_Init (void)
 971 {
 972         cl_scores_mempool = Mem_AllocPool("client player info");
 973
 974         cl_refdef_mempool = Mem_AllocPool("refdef");
 975         memset(&r_refdef, 0, sizeof(r_refdef));
 976         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * MAX_VISEDICTS);
 977
 978         SZ_Alloc (&cls.message, 1024, "cls.message");
 979
 980         CL_InitInput ();
 981         CL_InitTEnts ();
 982
 983 //
 984 // register our commands
 985 //
 986         Cvar_RegisterVariable (&cl_name);
 987         Cvar_RegisterVariable (&cl_color);
 988         if (gamemode == GAME_NEHAHRA)
 989                 Cvar_RegisterVariable (&cl_pmodel);
 990         Cvar_RegisterVariable (&cl_upspeed);
 991         Cvar_RegisterVariable (&cl_forwardspeed);
 992         Cvar_RegisterVariable (&cl_backspeed);
 993         Cvar_RegisterVariable (&cl_sidespeed);
 994         Cvar_RegisterVariable (&cl_movespeedkey);
 995         Cvar_RegisterVariable (&cl_yawspeed);
 996         Cvar_RegisterVariable (&cl_pitchspeed);
 997         Cvar_RegisterVariable (&cl_anglespeedkey);
 998         Cvar_RegisterVariable (&cl_shownet);
 999         Cvar_RegisterVariable (&cl_nolerp);
1000         Cvar_RegisterVariable (&lookspring);
1001         Cvar_RegisterVariable (&lookstrafe);
1002         Cvar_RegisterVariable (&sensitivity);
1003         Cvar_RegisterVariable (&freelook);
1004
1005         Cvar_RegisterVariable (&m_pitch);
1006         Cvar_RegisterVariable (&m_yaw);
1007         Cvar_RegisterVariable (&m_forward);
1008         Cvar_RegisterVariable (&m_side);
1009
1010         Cvar_RegisterVariable (&cl_itembobspeed);
1011         Cvar_RegisterVariable (&cl_itembobheight);
1012
1013         Cmd_AddCommand ("entities", CL_PrintEntities_f);
1014         Cmd_AddCommand ("bitprofile", CL_BitProfile_f);
1015         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
1016         Cmd_AddCommand ("record", CL_Record_f);
1017         Cmd_AddCommand ("stop", CL_Stop_f);
1018         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
1019         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
1020
1021         Cmd_AddCommand ("fog", CL_Fog_f);
1022
1023         // LordHavoc: added pausedemo
1024         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
1025         if (gamemode == GAME_NEHAHRA)
1026                 Cmd_AddCommand ("pmodel", CL_PModel_f);
1027
1028         Cvar_RegisterVariable(&cl_draweffects);
1029
1030         CL_Parse_Init();
1031         CL_Particles_Init();
1032         CL_Screen_Init();
1033         CL_CGVM_Init();
1034 }