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