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 = {"_cl_name", "player", true};
  29 cvar_t  cl_color = {"_cl_color", "0", true};
  30 cvar_t  cl_pmodel = {"_cl_pmodel", "0", true};
  31
  32 cvar_t  cl_shownet = {"cl_shownet","0"};        // can be 0, 1, or 2
  33 cvar_t  cl_nolerp = {"cl_nolerp","0"};
  34
  35 cvar_t  lookspring = {"lookspring","0", true};
  36 cvar_t  lookstrafe = {"lookstrafe","0", true};
  37 cvar_t  sensitivity = {"sensitivity","3", true};
  38
  39 cvar_t  m_pitch = {"m_pitch","0.022", true};
  40 cvar_t  m_yaw = {"m_yaw","0.022", true};
  41 cvar_t  m_forward = {"m_forward","1", true};
  42 cvar_t  m_side = {"m_side","0.8", true};
  43
  44
  45 client_static_t cls;
  46 client_state_t  cl;
  47 // FIXME: put these on hunk?
  48 efrag_t                 cl_efrags[MAX_EFRAGS];
  49 entity_t                cl_entities[MAX_EDICTS];
  50 entity_t                cl_static_entities[MAX_STATIC_ENTITIES];
  51 lightstyle_t    cl_lightstyle[MAX_LIGHTSTYLES];
  52 dlight_t                cl_dlights[MAX_DLIGHTS];
  53
  54 int                             cl_numvisedicts;
  55 entity_t                *cl_visedicts[MAX_VISEDICTS];
  56
  57 /*
  58 =====================
  59 CL_ClearState
  60
  61 =====================
  62 */
  63 void CL_ClearState (void)
  64 {
  65         int                     i;
  66
  67         if (!sv.active)
  68                 Host_ClearMemory ();
  69
  70 // wipe the entire cl structure
  71         memset (&cl, 0, sizeof(cl));
  72
  73         SZ_Clear (&cls.message);
  74
  75 // clear other arrays
  76         memset (cl_efrags, 0, sizeof(cl_efrags));
  77         memset (cl_entities, 0, sizeof(cl_entities));
  78         memset (cl_dlights, 0, sizeof(cl_dlights));
  79         memset (cl_lightstyle, 0, sizeof(cl_lightstyle));
  80         memset (cl_temp_entities, 0, sizeof(cl_temp_entities));
  81         memset (cl_beams, 0, sizeof(cl_beams));
  82         // LordHavoc: have to set up the baseline info for alpha and other stuff
  83         for (i = 0;i < MAX_EDICTS;i++)
  84         {
  85                 cl_entities[i].baseline.alpha = 255;
  86                 cl_entities[i].baseline.scale = 16;
  87                 cl_entities[i].baseline.glowsize = 0;
  88                 cl_entities[i].baseline.glowcolor = 254;
  89                 cl_entities[i].baseline.colormod = 255;
  90         }
  91
  92 //
  93 // allocate the efrags and chain together into a free list
  94 //
  95         cl.free_efrags = cl_efrags;
  96         for (i=0 ; i<MAX_EFRAGS-1 ; i++)
  97                 cl.free_efrags[i].entnext = &cl.free_efrags[i+1];
  98         cl.free_efrags[i].entnext = NULL;
  99 }
 100
 101 /*
 102 =====================
 103 CL_Disconnect
 104
 105 Sends a disconnect message to the server
 106 This is also called on Host_Error, so it shouldn't cause any errors
 107 =====================
 108 */
 109 void CL_Disconnect (void)
 110 {
 111 // stop sounds (especially looping!)
 112         S_StopAllSounds (true);
 113
 114 // bring the console down and fade the colors back to normal
 115 //      SCR_BringDownConsole ();
 116
 117 // if running a local server, shut it down
 118         if (cls.demoplayback)
 119                 CL_StopPlayback ();
 120         else if (cls.state == ca_connected)
 121         {
 122                 if (cls.demorecording)
 123                         CL_Stop_f ();
 124
 125                 Con_DPrintf ("Sending clc_disconnect\n");
 126                 SZ_Clear (&cls.message);
 127                 MSG_WriteByte (&cls.message, clc_disconnect);
 128                 NET_SendUnreliableMessage (cls.netcon, &cls.message);
 129                 SZ_Clear (&cls.message);
 130                 NET_Close (cls.netcon);
 131
 132                 cls.state = ca_disconnected;
 133                 if (sv.active)
 134                         Host_ShutdownServer(false);
 135         }
 136
 137         cls.demoplayback = cls.timedemo = false;
 138         cls.signon = 0;
 139 }
 140
 141 void CL_Disconnect_f (void)
 142 {
 143         CL_Disconnect ();
 144         if (sv.active)
 145                 Host_ShutdownServer (false);
 146 }
 147
 148
 149
 150
 151 /*
 152 =====================
 153 CL_EstablishConnection
 154
 155 Host should be either "local" or a net address to be passed on
 156 =====================
 157 */
 158 void CL_EstablishConnection (char *host)
 159 {
 160         if (cls.state == ca_dedicated)
 161                 return;
 162
 163         if (cls.demoplayback)
 164                 return;
 165
 166         CL_Disconnect ();
 167
 168         cls.netcon = NET_Connect (host);
 169         if (!cls.netcon)
 170                 Host_Error ("CL_Connect: connect failed\n");
 171         Con_DPrintf ("CL_EstablishConnection: connected to %s\n", host);
 172
 173         cls.demonum = -1;                       // not in the demo loop now
 174         cls.state = ca_connected;
 175         cls.signon = 0;                         // need all the signon messages before playing
 176 }
 177
 178 extern int numgltextures;
 179 extern int texels;
 180
 181 /*
 182 =====================
 183 CL_SignonReply
 184
 185 An svc_signonnum has been received, perform a client side setup
 186 =====================
 187 */
 188 void CL_SignonReply (void)
 189 {
 190         char    str[8192];
 191
 192 Con_DPrintf ("CL_SignonReply: %i\n", cls.signon);
 193
 194         switch (cls.signon)
 195         {
 196         case 1:
 197                 MSG_WriteByte (&cls.message, clc_stringcmd);
 198                 MSG_WriteString (&cls.message, "prespawn");
 199                 break;
 200
 201         case 2:
 202                 MSG_WriteByte (&cls.message, clc_stringcmd);
 203                 MSG_WriteString (&cls.message, va("name \"%s\"\n", cl_name.string));
 204
 205                 MSG_WriteByte (&cls.message, clc_stringcmd);
 206                 MSG_WriteString (&cls.message, va("color %i %i\n", ((int)cl_color.value)>>4, ((int)cl_color.value)&15));
 207
 208                 if (cl_pmodel.value)
 209                 {
 210                         MSG_WriteByte (&cls.message, clc_stringcmd);
 211                         MSG_WriteString (&cls.message, va("pmodel %f\n", cl_pmodel.value));
 212                 }
 213
 214                 MSG_WriteByte (&cls.message, clc_stringcmd);
 215                 sprintf (str, "spawn %s", cls.spawnparms);
 216                 MSG_WriteString (&cls.message, str);
 217                 break;
 218
 219         case 3:
 220                 MSG_WriteByte (&cls.message, clc_stringcmd);
 221                 MSG_WriteString (&cls.message, "begin");
 222                 Cache_Report ();                // print remaining memory
 223                 break;
 224
 225         case 4:
 226                 SCR_EndLoadingPlaque ();                // allow normal screen updates
 227                 // LordHavoc: debugging purposes
 228                 Con_DPrintf("GLQuake texture slots in use: %i : %i : %i texels\n", texture_extension_number, numgltextures, texels);
 229                 break;
 230         }
 231 }
 232
 233 /*
 234 =====================
 235 CL_NextDemo
 236
 237 Called to play the next demo in the demo loop
 238 =====================
 239 */
 240 void CL_NextDemo (void)
 241 {
 242         char    str[1024];
 243
 244         if (cls.demonum == -1)
 245                 return;         // don't play demos
 246
 247         SCR_BeginLoadingPlaque ();
 248
 249         if (!cls.demos[cls.demonum][0] || cls.demonum == MAX_DEMOS)
 250         {
 251                 cls.demonum = 0;
 252                 if (!cls.demos[cls.demonum][0])
 253                 {
 254                         Con_Printf ("No demos listed with startdemos\n");
 255                         cls.demonum = -1;
 256                         return;
 257                 }
 258         }
 259
 260         sprintf (str,"playdemo %s\n", cls.demos[cls.demonum]);
 261         Cbuf_InsertText (str);
 262         cls.demonum++;
 263 }
 264
 265 /*
 266 ==============
 267 CL_PrintEntities_f
 268 ==============
 269 */
 270 void CL_PrintEntities_f (void)
 271 {
 272         entity_t        *ent;
 273         int                     i;
 274
 275         for (i=0,ent=cl_entities ; i<cl.num_entities ; i++,ent++)
 276         {
 277                 Con_Printf ("%3i:",i);
 278                 if (!ent->model)
 279                 {
 280                         Con_Printf ("EMPTY\n");
 281                         continue;
 282                 }
 283                 Con_Printf ("%s:%2i  (%5.1f,%5.1f,%5.1f) [%5.1f %5.1f %5.1f]\n"
 284                 ,ent->model->name,ent->frame, ent->origin[0], ent->origin[1], ent->origin[2], ent->angles[0], ent->angles[1], ent->angles[2]);
 285         }
 286 }
 287
 288
 289 /*
 290 ===============
 291 SetPal
 292
 293 Debugging tool, just flashes the screen
 294 ===============
 295 */
 296 void SetPal (int i)
 297 {
 298 #if 0
 299         static int old;
 300         byte    pal[768];
 301         int             c;
 302
 303         if (i == old)
 304                 return;
 305         old = i;
 306
 307         if (i==0)
 308                 VID_SetPalette (host_basepal);
 309         else if (i==1)
 310         {
 311                 for (c=0 ; c<768 ; c+=3)
 312                 {
 313                         pal[c] = 0;
 314                         pal[c+1] = 255;
 315                         pal[c+2] = 0;
 316                 }
 317                 VID_SetPalette (pal);
 318         }
 319         else
 320         {
 321                 for (c=0 ; c<768 ; c+=3)
 322                 {
 323                         pal[c] = 0;
 324                         pal[c+1] = 0;
 325                         pal[c+2] = 255;
 326                 }
 327                 VID_SetPalette (pal);
 328         }
 329 #endif
 330 }
 331
 332 /*
 333 ===============
 334 CL_AllocDlight
 335
 336 ===============
 337 */
 338 dlight_t *CL_AllocDlight (int key)
 339 {
 340         int             i;
 341         dlight_t        *dl;
 342
 343 // first look for an exact key match
 344         if (key)
 345         {
 346                 dl = cl_dlights;
 347                 for (i=0 ; i<MAX_DLIGHTS ; i++, dl++)
 348                 {
 349                         if (dl->key == key)
 350                         {
 351                                 memset (dl, 0, sizeof(*dl));
 352                                 dl->key = key;
 353                                 return dl;
 354                         }
 355                 }
 356         }
 357
 358 // then look for anything else
 359         dl = cl_dlights;
 360         for (i=0 ; i<MAX_DLIGHTS ; i++, dl++)
 361         {
 362                 if (dl->die < cl.time)
 363                 {
 364                         memset (dl, 0, sizeof(*dl));
 365                         dl->key = key;
 366                         return dl;
 367                 }
 368         }
 369
 370         dl = &cl_dlights[0];
 371         memset (dl, 0, sizeof(*dl));
 372         dl->key = key;
 373         return dl;
 374 }
 375
 376
 377 /*
 378 ===============
 379 CL_DecayLights
 380
 381 ===============
 382 */
 383 void CL_DecayLights (void)
 384 {
 385         int                     i;
 386         dlight_t        *dl;
 387         float           time;
 388
 389         time = cl.time - cl.oldtime;
 390
 391         dl = cl_dlights;
 392         for (i=0 ; i<MAX_DLIGHTS ; i++, dl++)
 393         {
 394                 if (dl->die < cl.time || !dl->radius)
 395                         continue;
 396
 397                 dl->radius -= time*dl->decay;
 398                 if (dl->radius < 0)
 399                         dl->radius = 0;
 400         }
 401 }
 402
 403
 404 /*
 405 ===============
 406 CL_LerpPoint
 407
 408 Determines the fraction between the last two messages that the objects
 409 should be put at.
 410 ===============
 411 */
 412 float   CL_LerpPoint (void)
 413 {
 414         float   f, frac;
 415
 416         f = cl.mtime[0] - cl.mtime[1];
 417
 418         if (!f || cl_nolerp.value || cls.timedemo || sv.active)
 419         {
 420                 cl.time = cl.mtime[0];
 421                 return 1;
 422         }
 423
 424         if (f > 0.1)
 425         {       // dropped packet, or start of demo
 426                 cl.mtime[1] = cl.mtime[0] - 0.1;
 427                 f = 0.1;
 428         }
 429         frac = (cl.time - cl.mtime[1]) / f;
 430 //Con_Printf ("frac: %f\n",frac);
 431         if (frac < 0)
 432         {
 433                 if (frac < -0.01)
 434                 {
 435 SetPal(1);
 436                         cl.time = cl.mtime[1];
 437 //                              Con_Printf ("low frac\n");
 438                 }
 439                 frac = 0;
 440         }
 441         else if (frac > 1)
 442         {
 443                 if (frac > 1.01)
 444                 {
 445 SetPal(2);
 446                         cl.time = cl.mtime[0];
 447 //                              Con_Printf ("high frac\n");
 448                 }
 449                 frac = 1;
 450         }
 451         else
 452                 SetPal(0);
 453
 454         return frac;
 455 }
 456
 457
 458 /*
 459 ===============
 460 CL_RelinkEntities
 461 ===============
 462 */
 463 void R_RocketTrail2 (vec3_t start, vec3_t end, int color, entity_t *ent);
 464 void CL_RelinkEntities (void)
 465 {
 466         entity_t        *ent;
 467         int                     i, j;
 468         float           frac, f, d;
 469         vec3_t          delta;
 470         float           bobjrotate;
 471         vec3_t          oldorg;
 472         dlight_t        *dl;
 473         byte            *tempcolor;
 474
 475 // determine partial update time
 476         frac = CL_LerpPoint ();
 477
 478         cl_numvisedicts = 0;
 479
 480 //
 481 // interpolate player info
 482 //
 483         for (i=0 ; i<3 ; i++)
 484                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
 485
 486         if (cls.demoplayback)
 487         {
 488         // interpolate the angles
 489                 for (j=0 ; j<3 ; j++)
 490                 {
 491                         d = cl.mviewangles[0][j] - cl.mviewangles[1][j];
 492                         if (d > 180)
 493                                 d -= 360;
 494                         else if (d < -180)
 495                                 d += 360;
 496                         cl.viewangles[j] = cl.mviewangles[1][j] + frac*d;
 497                 }
 498         }
 499
 500         bobjrotate = anglemod(100*cl.time);
 501
 502 // start on the entity after the world
 503         for (i=1,ent=cl_entities+1 ; i<cl.num_entities ; i++,ent++)
 504         {
 505                 if (!ent->model)
 506                 {       // empty slot
 507                         if (ent->forcelink)
 508                                 R_RemoveEfrags (ent);   // just became empty
 509                         continue;
 510                 }
 511
 512 // if the object wasn't included in the last packet, remove it
 513                 if (ent->msgtime != cl.mtime[0])
 514                 {
 515                         ent->model = NULL;
 516                         continue;
 517                 }
 518
 519                 VectorCopy (ent->origin, oldorg);
 520
 521                 if (ent->forcelink)
 522                 {       // the entity was not updated in the last message
 523                         // so move to the final spot
 524                         VectorCopy (ent->msg_origins[0], ent->origin);
 525                         VectorCopy (ent->msg_angles[0], ent->angles);
 526                 }
 527                 else
 528                 {       // if the delta is large, assume a teleport and don't lerp
 529                         f = frac;
 530                         for (j=0 ; j<3 ; j++)
 531                         {
 532                                 delta[j] = ent->msg_origins[0][j] - ent->msg_origins[1][j];
 533                                 // LordHavoc: increased lerp tolerance from 100 to 200
 534                                 if (delta[j] > 200 || delta[j] < -200)
 535                                         f = 1;          // assume a teleportation, not a motion
 536                         }
 537
 538                 // interpolate the origin and angles
 539                         for (j=0 ; j<3 ; j++)
 540                         {
 541                                 ent->origin[j] = ent->msg_origins[1][j] + f*delta[j];
 542
 543                                 d = ent->msg_angles[0][j] - ent->msg_angles[1][j];
 544                                 if (d > 180)
 545                                         d -= 360;
 546                                 else if (d < -180)
 547                                         d += 360;
 548                                 ent->angles[j] = ent->msg_angles[1][j] + f*d;
 549                         }
 550
 551                 }
 552
 553                 if (ent->effects & EF_BRIGHTFIELD)
 554                         R_EntityParticles (ent);
 555                 if (ent->effects & EF_MUZZLEFLASH)
 556                 {
 557                         vec3_t          fv, rv, uv;
 558
 559                         dl = CL_AllocDlight (i);
 560                         VectorCopy (ent->origin,  dl->origin);
 561                         dl->origin[2] += 16;
 562                         AngleVectors (ent->angles, fv, rv, uv);
 563
 564                         VectorMA (dl->origin, 18, fv, dl->origin);
 565                         dl->radius = 200 + (rand()&31);
 566                         dl->minlight = 32;
 567                         dl->die = cl.time + 0.1;
 568                         dl->color[0] = 1.0;dl->color[1] = 1.0;dl->color[2] = 1.0;
 569                 }
 570                 if (ent->effects & EF_BRIGHTLIGHT)
 571                 {
 572                         dl = CL_AllocDlight (i);
 573                         VectorCopy (ent->origin,  dl->origin);
 574                         dl->origin[2] += 16;
 575                         dl->radius = 400 + (rand()&31);
 576                         dl->die = cl.time + 0.001;
 577                         dl->color[0] = 1.0;dl->color[1] = 1.0;dl->color[2] = 1.0;
 578                 }
 579                 if (ent->effects & EF_DIMLIGHT)
 580                 {
 581                         dl = CL_AllocDlight (i);
 582                         VectorCopy (ent->origin,  dl->origin);
 583                         dl->radius = 200 + (rand()&31);
 584                         dl->die = cl.time + 0.001;
 585                         dl->color[0] = 1.0;dl->color[1] = 1.0;dl->color[2] = 1.0;
 586                 }
 587                 // LordHavoc: added EF_RED and EF_BLUE
 588                 if (ent->effects & EF_RED) // red
 589                 {
 590                         if (ent->effects & EF_BLUE) // magenta
 591                         {
 592                                 dl = CL_AllocDlight (i);
 593                                 VectorCopy (ent->origin,  dl->origin);
 594                                 dl->radius = 200 + (rand()&31);
 595                                 dl->die = cl.time + 0.001;
 596                                 dl->color[0] = 0.7;dl->color[1] = 0.07;dl->color[2] = 0.7;
 597                         }
 598                         else // red
 599                         {
 600                                 dl = CL_AllocDlight (i);
 601                                 VectorCopy (ent->origin,  dl->origin);
 602                                 dl->radius = 200 + (rand()&31);
 603                                 dl->die = cl.time + 0.001;
 604                                 dl->color[0] = 0.8;dl->color[1] = 0.05;dl->color[2] = 0.05;
 605                         }
 606                 }
 607                 else if (ent->effects & EF_BLUE) // blue
 608                 {
 609                         dl = CL_AllocDlight (i);
 610                         VectorCopy (ent->origin,  dl->origin);
 611                         dl->radius = 200 + (rand()&31);
 612                         dl->die = cl.time + 0.001;
 613                         dl->color[0] = 0.05;dl->color[1] = 0.05;dl->color[2] = 0.8;
 614                 }
 615
 616                 if (ent->model->flags) // LordHavoc: if the model has no flags, don't check each
 617                 {
 618                 // rotate binary objects locally
 619                         if (ent->model->flags & EF_ROTATE)
 620                                 ent->angles[1] = bobjrotate;
 621                         if (ent->model->flags & EF_GIB)
 622                                 R_RocketTrail (oldorg, ent->origin, 2, ent);
 623                         else if (ent->model->flags & EF_ZOMGIB)
 624                                 R_RocketTrail (oldorg, ent->origin, 4, ent);
 625                         else if (ent->model->flags & EF_TRACER)
 626                                 R_RocketTrail (oldorg, ent->origin, 3, ent);
 627                         else if (ent->model->flags & EF_TRACER2)
 628                                 R_RocketTrail (oldorg, ent->origin, 5, ent);
 629                         else if (ent->model->flags & EF_ROCKET)
 630                         {
 631                                 R_RocketTrail (oldorg, ent->origin, 0, ent);
 632                                 dl = CL_AllocDlight (i);
 633                                 VectorCopy (ent->origin, dl->origin);
 634                                 dl->radius = 200;
 635                                 dl->die = cl.time + 0.001;
 636                                 dl->color[0] = 1.0;dl->color[1] = 0.8;dl->color[2] = 0.4;
 637                         }
 638                         else if (ent->model->flags & EF_GRENADE)
 639                         {
 640                                 if (ent->alpha == -1) // LordHavoc: Nehahra dem compatibility
 641                                         R_RocketTrail (oldorg, ent->origin, 7, ent);
 642                                 else
 643                                         R_RocketTrail (oldorg, ent->origin, 1, ent);
 644                         }
 645                         else if (ent->model->flags & EF_TRACER3)
 646                                 R_RocketTrail (oldorg, ent->origin, 6, ent);
 647                 }
 648                 if (ent->glowsize) // LordHavoc: customizable glow
 649                 {
 650                         dl = CL_AllocDlight (i);
 651                         VectorCopy (ent->origin, dl->origin);
 652                         dl->dark = ent->glowsize < 0; // darklight
 653                         dl->radius = ent->glowsize;
 654                         if (dl->dark)
 655                         {
 656                                 if (ent->glowtrail) // LordHavoc: all darklights leave black trails
 657                                         R_RocketTrail2 (oldorg, ent->origin, 0, ent);
 658                                 dl->radius = -ent->glowsize;
 659                         }
 660                         else if (ent->glowtrail) // LordHavoc: customizable glow and trail
 661                                 R_RocketTrail2 (oldorg, ent->origin, ent->glowcolor, ent);
 662                         dl->die = cl.time + 0.001;
 663                         tempcolor = (byte *)&d_8to24table[ent->glowcolor];
 664                         dl->color[0] = tempcolor[0]*(1.0/255.0);dl->color[1] = tempcolor[1]*(1.0/255.0);dl->color[2] = tempcolor[2]*(1.0/255.0);
 665                 }
 666                 else if (ent->glowtrail) // LordHavoc: customizable glow and trail
 667                         R_RocketTrail2 (oldorg, ent->origin, ent->glowcolor, ent);
 668
 669                 ent->forcelink = false;
 670
 671                 if (i == cl.viewentity && !chase_active.value)
 672                         continue;
 673
 674 // LordHavoc: enabled EF_NODRAW
 675                 if (!ent->model || ent->effects & EF_NODRAW)
 676                         continue;
 677                 if (cl_numvisedicts < MAX_VISEDICTS)
 678                 {
 679                         cl_visedicts[cl_numvisedicts] = ent;
 680                         cl_numvisedicts++;
 681                 }
 682         }
 683
 684 }
 685
 686
 687 /*
 688 ===============
 689 CL_ReadFromServer
 690
 691 Read all incoming data from the server
 692 ===============
 693 */
 694 int CL_ReadFromServer (void)
 695 {
 696         int             ret;
 697
 698         cl.oldtime = cl.time;
 699         cl.time += host_frametime;
 700
 701         do
 702         {
 703                 ret = CL_GetMessage ();
 704                 if (ret == -1)
 705                         Host_Error ("CL_ReadFromServer: lost server connection");
 706                 if (!ret)
 707                         break;
 708
 709                 cl.last_received_message = realtime;
 710                 CL_ParseServerMessage ();
 711         } while (ret && cls.state == ca_connected);
 712
 713         if (cl_shownet.value)
 714                 Con_Printf ("\n");
 715
 716         CL_RelinkEntities ();
 717         CL_UpdateTEnts ();
 718
 719 //
 720 // bring the links up to date
 721 //
 722         return 0;
 723 }
 724
 725 /*
 726 =================
 727 CL_SendCmd
 728 =================
 729 */
 730 void CL_SendCmd (void)
 731 {
 732         usercmd_t               cmd;
 733
 734         if (cls.state != ca_connected)
 735                 return;
 736
 737         if (cls.signon == SIGNONS)
 738         {
 739         // get basic movement from keyboard
 740                 CL_BaseMove (&cmd);
 741
 742         // allow mice or other external controllers to add to the move
 743                 IN_Move (&cmd);
 744
 745         // send the unreliable message
 746                 CL_SendMove (&cmd);
 747
 748         }
 749
 750         if (cls.demoplayback)
 751         {
 752                 SZ_Clear (&cls.message);
 753                 return;
 754         }
 755
 756 // send the reliable message
 757         if (!cls.message.cursize)
 758                 return;         // no message at all
 759
 760         if (!NET_CanSendMessage (cls.netcon))
 761         {
 762                 Con_DPrintf ("CL_WriteToServer: can't send\n");
 763                 return;
 764         }
 765
 766         if (NET_SendMessage (cls.netcon, &cls.message) == -1)
 767                 Host_Error ("CL_WriteToServer: lost server connection");
 768
 769         SZ_Clear (&cls.message);
 770 }
 771
 772 // LordHavoc: pausedemo command
 773 void CL_PauseDemo_f (void)
 774 {
 775         cls.demopaused = !cls.demopaused;
 776         if (cls.demopaused)
 777                 Con_Printf("Demo paused\n");
 778         else
 779                 Con_Printf("Demo unpaused\n");
 780 }
 781
 782 /*
 783 ======================
 784 CL_PModel_f
 785 LordHavoc: Intended for Nehahra, I personally think this is dumb, but Mindcrime won't listen.
 786 ======================
 787 */
 788 void CL_PModel_f (void)
 789 {
 790         int i;
 791         eval_t *val;
 792
 793         if (Cmd_Argc () == 1)
 794         {
 795                 Con_Printf ("\"pmodel\" is \"%s\"\n", cl_pmodel.string);
 796                 return;
 797         }
 798         i = atoi(Cmd_Argv(1));
 799
 800         if (cmd_source == src_command)
 801         {
 802                 if (cl_pmodel.value == i)
 803                         return;
 804                 Cvar_SetValue ("_cl_pmodel", i);
 805                 if (cls.state == ca_connected)
 806                         Cmd_ForwardToServer ();
 807                 return;
 808         }
 809
 810         host_client->pmodel = i;
 811         if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_pmodel)))
 812                 val->_float = i;
 813 }
 814
 815 /*
 816 ======================
 817 CL_Fog_f
 818 ======================
 819 */
 820 extern float fog_density, fog_red, fog_green, fog_blue;
 821 void CL_Fog_f (void)
 822 {
 823         if (Cmd_Argc () == 1)
 824         {
 825                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
 826                 return;
 827         }
 828         fog_density = atof(Cmd_Argv(1));
 829         fog_red = atof(Cmd_Argv(2));
 830         fog_green = atof(Cmd_Argv(3));
 831         fog_blue = atof(Cmd_Argv(4));
 832 }
 833
 834 cvar_t demo_nehahra = {"demo_nehahra", "0"};
 835
 836 /*
 837 =================
 838 CL_Init
 839 =================
 840 */
 841 void CL_Init (void)
 842 {
 843         SZ_Alloc (&cls.message, 1024);
 844
 845         CL_InitInput ();
 846         CL_InitTEnts ();
 847
 848 //
 849 // register our commands
 850 //
 851         Cvar_RegisterVariable (&cl_name);
 852         Cvar_RegisterVariable (&cl_color);
 853         Cvar_RegisterVariable (&cl_pmodel);
 854         Cvar_RegisterVariable (&cl_upspeed);
 855         Cvar_RegisterVariable (&cl_forwardspeed);
 856         Cvar_RegisterVariable (&cl_backspeed);
 857         Cvar_RegisterVariable (&cl_sidespeed);
 858         Cvar_RegisterVariable (&cl_movespeedkey);
 859         Cvar_RegisterVariable (&cl_yawspeed);
 860         Cvar_RegisterVariable (&cl_pitchspeed);
 861         Cvar_RegisterVariable (&cl_anglespeedkey);
 862         Cvar_RegisterVariable (&cl_shownet);
 863         Cvar_RegisterVariable (&cl_nolerp);
 864         Cvar_RegisterVariable (&lookspring);
 865         Cvar_RegisterVariable (&lookstrafe);
 866         Cvar_RegisterVariable (&sensitivity);
 867
 868         Cvar_RegisterVariable (&m_pitch);
 869         Cvar_RegisterVariable (&m_yaw);
 870         Cvar_RegisterVariable (&m_forward);
 871         Cvar_RegisterVariable (&m_side);
 872
 873 //      Cvar_RegisterVariable (&cl_autofire);
 874
 875         Cmd_AddCommand ("entities", CL_PrintEntities_f);
 876         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
 877         Cmd_AddCommand ("record", CL_Record_f);
 878         Cmd_AddCommand ("stop", CL_Stop_f);
 879         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
 880         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
 881
 882         Cmd_AddCommand ("fog", CL_Fog_f);
 883
 884         // LordHavoc: added pausedemo
 885         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
 886         // LordHavoc: added pmodel command (like name, etc, only intended for Nehahra)
 887         Cmd_AddCommand ("pmodel", CL_PModel_f);
 888         // LordHavoc: added demo_nehahra cvar
 889         Cvar_RegisterVariable (&demo_nehahra);
 890         if (nehahra)
 891                 Cvar_SetValue("demo_nehahra", 1);
 892 }
 893