host.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 // host.c -- coordinates spawning and killing of local servers
  21
  22 #include <time.h>
  23 #include "quakedef.h"
  24 #include "libcurl.h"
  25 #include "cdaudio.h"
  26 #include "cl_video.h"
  27 #include "progsvm.h"
  28 #include "csprogs.h"
  29
  30 /*
  31
  32 A server can always be started, even if the system started out as a client
  33 to a remote system.
  34
  35 A client can NOT be started if the system started as a dedicated server.
  36
  37 Memory is cleared / released when a server or client begins, not when they end.
  38
  39 */
  40
  41 // how many frames have occurred
  42 // (checked by Host_Error and Host_SaveConfig_f)
  43 int host_framecount = 0;
  44 // LordHavoc: set when quit is executed
  45 qboolean host_shuttingdown = false;
  46
  47 // the real time since application started, without any slowmo or clamping
  48 double realtime;
  49
  50 // current client
  51 client_t *host_client;
  52
  53 jmp_buf host_abortframe;
  54
  55 // pretend frames take this amount of time (in seconds), 0 = realtime
  56 cvar_t host_framerate = {0, "host_framerate","0", "locks frame timing to this value in seconds, 0.05 is 20fps for example, note that this can easily run too fast, use host_maxfps if you want to limit your framerate instead, or sys_ticrate to limit server speed"};
  57 // shows time used by certain subsystems
  58 cvar_t host_speeds = {0, "host_speeds","0", "reports how much time is used in server/graphics/sound"};
  59 // LordHavoc: framerate independent slowmo
  60 cvar_t slowmo = {0, "slowmo", "1.0", "controls game speed, 0.5 is half speed, 2 is double speed"};
  61 // LordHavoc: framerate upper cap
  62 cvar_t cl_maxfps = {CVAR_SAVE, "cl_maxfps", "1000", "maximum fps cap, if game is running faster than this it will wait before running another frame (useful to make cpu time available to other programs)"};
  63
  64 // print broadcast messages in dedicated mode
  65 cvar_t sv_echobprint = {CVAR_SAVE, "sv_echobprint", "1", "prints gamecode bprint() calls to server console"};
  66
  67 cvar_t sys_ticrate = {CVAR_SAVE, "sys_ticrate","0.05", "how long a server frame is in seconds, 0.05 is 20fps server rate, 0.1 is 10fps (can not be set higher than 0.1), 0 runs as many server frames as possible (makes games against bots a little smoother, overwhelms network players)"};
  68 cvar_t sv_fixedframeratesingleplayer = {0, "sv_fixedframeratesingleplayer", "0", "allows you to use server-style timing system in singleplayer (don't run faster than sys_ticrate)"};
  69
  70 cvar_t fraglimit = {CVAR_NOTIFY, "fraglimit","0", "ends level if this many frags is reached by any player"};
  71 cvar_t timelimit = {CVAR_NOTIFY, "timelimit","0", "ends level at this time (in minutes)"};
  72 cvar_t teamplay = {CVAR_NOTIFY, "teamplay","0", "teamplay mode, values depend on mod but typically 0 = no teams, 1 = no team damage no self damage, 2 = team damage and self damage, some mods support 3 = no team damage but can damage self"};
  73
  74 cvar_t samelevel = {CVAR_NOTIFY, "samelevel","0", "repeats same level if level ends (due to timelimit or someone hitting an exit)"};
  75 cvar_t noexit = {CVAR_NOTIFY, "noexit","0", "kills anyone attempting to use an exit"};
  76
  77 cvar_t developer = {0, "developer","0", "prints additional debugging messages and information (recommended for modders and level designers)"};
  78 cvar_t developer_entityparsing = {0, "developer_entityparsing", "0", "prints detailed network entities information each time a packet is received"};
  79
  80 cvar_t skill = {0, "skill","1", "difficulty level of game, affects monster layouts in levels, 0 = easy, 1 = normal, 2 = hard, 3 = nightmare (same layout as hard but monsters fire twice)"};
  81 cvar_t deathmatch = {0, "deathmatch","0", "deathmatch mode, values depend on mod but typically 0 = no deathmatch, 1 = normal deathmatch with respawning weapons, 2 = weapons stay (players can only pick up new weapons)"};
  82 cvar_t coop = {0, "coop","0", "coop mode, 0 = no coop, 1 = coop mode, multiple players playing through the singleplayer game (coop mode also shuts off deathmatch)"};
  83
  84 cvar_t pausable = {0, "pausable","1", "allow players to pause or not"};
  85
  86 cvar_t temp1 = {0, "temp1","0", "general cvar for mods to use, in stock id1 this selects which death animation to use on players (0 = random death, other values select specific death scenes)"};
  87
  88 cvar_t timestamps = {CVAR_SAVE, "timestamps", "0", "prints timestamps on console messages"};
  89 cvar_t timeformat = {CVAR_SAVE, "timeformat", "[%Y-%m-%d %H:%M:%S] ", "time format to use on timestamped console messages"};
  90
  91 /*
  92 ================
  93 Host_AbortCurrentFrame
  94
  95 aborts the current host frame and goes on with the next one
  96 ================
  97 */
  98 void Host_AbortCurrentFrame(void)
  99 {
 100         longjmp (host_abortframe, 1);
 101 }
 102
 103 /*
 104 ================
 105 Host_Error
 106
 107 This shuts down both the client and server
 108 ================
 109 */
 110 void Host_Error (const char *error, ...)
 111 {
 112         static char hosterrorstring1[MAX_INPUTLINE];
 113         static char hosterrorstring2[MAX_INPUTLINE];
 114         static qboolean hosterror = false;
 115         va_list argptr;
 116
 117         // turn off rcon redirect if it was active when the crash occurred
 118         rcon_redirect = false;
 119
 120         va_start (argptr,error);
 121         dpvsnprintf (hosterrorstring1,sizeof(hosterrorstring1),error,argptr);
 122         va_end (argptr);
 123
 124         Con_Printf("Host_Error: %s\n", hosterrorstring1);
 125
 126         // LordHavoc: if crashing very early, or currently shutting down, do
 127         // Sys_Error instead
 128         if (host_framecount < 3 || host_shuttingdown)
 129                 Sys_Error ("Host_Error: %s", hosterrorstring1);
 130
 131         if (hosterror)
 132                 Sys_Error ("Host_Error: recursively entered (original error was: %s    new error is: %s)", hosterrorstring2, hosterrorstring1);
 133         hosterror = true;
 134
 135         strlcpy(hosterrorstring2, hosterrorstring1, sizeof(hosterrorstring2));
 136
 137         CL_Parse_DumpPacket();
 138
 139         CL_Parse_ErrorCleanUp();
 140
 141         //PR_Crash();
 142
 143         // print out where the crash happened, if it was caused by QC (and do a cleanup)
 144         PRVM_Crash();
 145
 146
 147         Host_ShutdownServer ();
 148
 149         if (cls.state == ca_dedicated)
 150                 Sys_Error ("Host_Error: %s",hosterrorstring2);  // dedicated servers exit
 151
 152         CL_Disconnect ();
 153         cls.demonum = -1;
 154
 155         hosterror = false;
 156
 157         Host_AbortCurrentFrame();
 158 }
 159
 160 void Host_ServerOptions (void)
 161 {
 162         int i;
 163
 164         // general default
 165         svs.maxclients = 8;
 166
 167 // COMMANDLINEOPTION: Server: -dedicated [playerlimit] starts a dedicated server (with a command console), default playerlimit is 8
 168 // COMMANDLINEOPTION: Server: -listen [playerlimit] starts a multiplayer server with graphical client, like singleplayer but other players can connect, default playerlimit is 8
 169         // if no client is in the executable or -dedicated is specified on
 170         // commandline, start a dedicated server
 171         i = COM_CheckParm ("-dedicated");
 172         if (i || !cl_available)
 173         {
 174                 cls.state = ca_dedicated;
 175                 // check for -dedicated specifying how many players
 176                 if (i && i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
 177                         svs.maxclients = atoi (com_argv[i+1]);
 178                 if (COM_CheckParm ("-listen"))
 179                         Con_Printf ("Only one of -dedicated or -listen can be specified\n");
 180                 // default sv_public on for dedicated servers (often hosted by serious administrators), off for listen servers (often hosted by clueless users)
 181                 Cvar_SetValue("sv_public", 1);
 182         }
 183         else if (cl_available)
 184         {
 185                 // client exists and not dedicated, check if -listen is specified
 186                 cls.state = ca_disconnected;
 187                 i = COM_CheckParm ("-listen");
 188                 if (i)
 189                 {
 190                         // default players unless specified
 191                         if (i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
 192                                 svs.maxclients = atoi (com_argv[i+1]);
 193                 }
 194                 else
 195                 {
 196                         // default players in some games, singleplayer in most
 197                         if (gamemode != GAME_GOODVSBAD2 && gamemode != GAME_NEXUIZ && gamemode != GAME_BATTLEMECH)
 198                                 svs.maxclients = 1;
 199                 }
 200         }
 201
 202         svs.maxclients = bound(1, svs.maxclients, MAX_SCOREBOARD);
 203
 204         svs.clients = (client_t *)Mem_Alloc(sv_mempool, sizeof(client_t) * svs.maxclients);
 205
 206         if (svs.maxclients > 1 && !deathmatch.integer && !coop.integer)
 207                 Cvar_SetValueQuick(&deathmatch, 1);
 208 }
 209
 210 /*
 211 =======================
 212 Host_InitLocal
 213 ======================
 214 */
 215 void Host_SaveConfig_f(void);
 216 void Host_LoadConfig_f(void);
 217 static void Host_InitLocal (void)
 218 {
 219         Cmd_AddCommand("saveconfig", Host_SaveConfig_f, "save settings to config.cfg immediately (also automatic when quitting)");
 220         Cmd_AddCommand("loadconfig", Host_LoadConfig_f, "reset everything and reload configs");
 221
 222         Cvar_RegisterVariable (&host_framerate);
 223         Cvar_RegisterVariable (&host_speeds);
 224         Cvar_RegisterVariable (&slowmo);
 225         Cvar_RegisterVariable (&cl_maxfps);
 226
 227         Cvar_RegisterVariable (&sv_echobprint);
 228
 229         Cvar_RegisterVariable (&sys_ticrate);
 230         Cvar_RegisterVariable (&sv_fixedframeratesingleplayer);
 231
 232         Cvar_RegisterVariable (&fraglimit);
 233         Cvar_RegisterVariable (&timelimit);
 234         Cvar_RegisterVariable (&teamplay);
 235         Cvar_RegisterVariable (&samelevel);
 236         Cvar_RegisterVariable (&noexit);
 237         Cvar_RegisterVariable (&skill);
 238         Cvar_RegisterVariable (&developer);
 239         Cvar_RegisterVariable (&developer_entityparsing);
 240         Cvar_RegisterVariable (&deathmatch);
 241         Cvar_RegisterVariable (&coop);
 242
 243         Cvar_RegisterVariable (&pausable);
 244
 245         Cvar_RegisterVariable (&temp1);
 246
 247         Cvar_RegisterVariable (&timestamps);
 248         Cvar_RegisterVariable (&timeformat);
 249 }
 250
 251
 252 /*
 253 ===============
 254 Host_SaveConfig_f
 255
 256 Writes key bindings and archived cvars to config.cfg
 257 ===============
 258 */
 259 void Host_SaveConfig_f(void)
 260 {
 261         qfile_t *f;
 262
 263 // dedicated servers initialize the host but don't parse and set the
 264 // config.cfg cvars
 265         // LordHavoc: don't save a config if it crashed in startup
 266         if (host_framecount >= 3 && cls.state != ca_dedicated)
 267         {
 268                 f = FS_Open ("config.cfg", "wb", false, false);
 269                 if (!f)
 270                 {
 271                         Con_Print("Couldn't write config.cfg.\n");
 272                         return;
 273                 }
 274
 275                 Key_WriteBindings (f);
 276                 Cvar_WriteVariables (f);
 277
 278                 FS_Close (f);
 279         }
 280 }
 281
 282
 283 /*
 284 ===============
 285 Host_LoadConfig_f
 286
 287 Resets key bindings and cvars to defaults and then reloads scripts
 288 ===============
 289 */
 290 void Host_LoadConfig_f(void)
 291 {
 292         // unlock the cvar default strings so they can be updated by the new default.cfg
 293         Cvar_UnlockDefaults();
 294         // reset cvars to their defaults, and then exec startup scripts again
 295         Cbuf_InsertText("cvar_resettodefaults_all;exec quake.rc\n");
 296 }
 297
 298 /*
 299 =================
 300 SV_ClientPrint
 301
 302 Sends text across to be displayed
 303 FIXME: make this just a stuffed echo?
 304 =================
 305 */
 306 void SV_ClientPrint(const char *msg)
 307 {
 308         if (host_client->netconnection)
 309         {
 310                 MSG_WriteByte(&host_client->netconnection->message, svc_print);
 311                 MSG_WriteString(&host_client->netconnection->message, msg);
 312         }
 313 }
 314
 315 /*
 316 =================
 317 SV_ClientPrintf
 318
 319 Sends text across to be displayed
 320 FIXME: make this just a stuffed echo?
 321 =================
 322 */
 323 void SV_ClientPrintf(const char *fmt, ...)
 324 {
 325         va_list argptr;
 326         char msg[MAX_INPUTLINE];
 327
 328         va_start(argptr,fmt);
 329         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
 330         va_end(argptr);
 331
 332         SV_ClientPrint(msg);
 333 }
 334
 335 /*
 336 =================
 337 SV_BroadcastPrint
 338
 339 Sends text to all active clients
 340 =================
 341 */
 342 void SV_BroadcastPrint(const char *msg)
 343 {
 344         int i;
 345         client_t *client;
 346
 347         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
 348         {
 349                 if (client->spawned && client->netconnection)
 350                 {
 351                         MSG_WriteByte(&client->netconnection->message, svc_print);
 352                         MSG_WriteString(&client->netconnection->message, msg);
 353                 }
 354         }
 355
 356         if (sv_echobprint.integer && cls.state == ca_dedicated)
 357                 Con_Print(msg);
 358 }
 359
 360 /*
 361 =================
 362 SV_BroadcastPrintf
 363
 364 Sends text to all active clients
 365 =================
 366 */
 367 void SV_BroadcastPrintf(const char *fmt, ...)
 368 {
 369         va_list argptr;
 370         char msg[MAX_INPUTLINE];
 371
 372         va_start(argptr,fmt);
 373         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
 374         va_end(argptr);
 375
 376         SV_BroadcastPrint(msg);
 377 }
 378
 379 /*
 380 =================
 381 Host_ClientCommands
 382
 383 Send text over to the client to be executed
 384 =================
 385 */
 386 void Host_ClientCommands(const char *fmt, ...)
 387 {
 388         va_list argptr;
 389         char string[MAX_INPUTLINE];
 390
 391         if (!host_client->netconnection)
 392                 return;
 393
 394         va_start(argptr,fmt);
 395         dpvsnprintf(string, sizeof(string), fmt, argptr);
 396         va_end(argptr);
 397
 398         MSG_WriteByte(&host_client->netconnection->message, svc_stufftext);
 399         MSG_WriteString(&host_client->netconnection->message, string);
 400 }
 401
 402 /*
 403 =====================
 404 SV_DropClient
 405
 406 Called when the player is getting totally kicked off the host
 407 if (crash = true), don't bother sending signofs
 408 =====================
 409 */
 410 void SV_DropClient(qboolean crash)
 411 {
 412         int i;
 413         Con_Printf("Client \"%s\" dropped\n", host_client->name);
 414
 415         // make sure edict is not corrupt (from a level change for example)
 416         host_client->edict = PRVM_EDICT_NUM(host_client - svs.clients + 1);
 417
 418         if (host_client->netconnection)
 419         {
 420                 // free the client (the body stays around)
 421                 if (!crash)
 422                 {
 423                         // LordHavoc: no opportunity for resending, so use unreliable 3 times
 424                         unsigned char bufdata[8];
 425                         sizebuf_t buf;
 426                         memset(&buf, 0, sizeof(buf));
 427                         buf.data = bufdata;
 428                         buf.maxsize = sizeof(bufdata);
 429                         MSG_WriteByte(&buf, svc_disconnect);
 430                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol);
 431                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol);
 432                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol);
 433                 }
 434                 // break the net connection
 435                 NetConn_Close(host_client->netconnection);
 436                 host_client->netconnection = NULL;
 437         }
 438
 439         // call qc ClientDisconnect function
 440         // LordHavoc: don't call QC if server is dead (avoids recursive
 441         // Host_Error in some mods when they run out of edicts)
 442         if (host_client->clientconnectcalled && sv.active && host_client->edict)
 443         {
 444                 // call the prog function for removing a client
 445                 // this will set the body to a dead frame, among other things
 446                 int saveSelf = prog->globals.server->self;
 447                 host_client->clientconnectcalled = false;
 448                 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
 449                 PRVM_ExecuteProgram(prog->globals.server->ClientDisconnect, "QC function ClientDisconnect is missing");
 450                 prog->globals.server->self = saveSelf;
 451         }
 452
 453         // remove leaving player from scoreboard
 454         //host_client->edict->fields.server->netname = PRVM_SetEngineString(host_client->name);
 455         //if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_clientcolors)))
 456         //      val->_float = 0;
 457         //host_client->edict->fields.server->frags = 0;
 458         host_client->name[0] = 0;
 459         host_client->colors = 0;
 460         host_client->frags = 0;
 461         // send notification to all clients
 462         // get number of client manually just to make sure we get it right...
 463         i = host_client - svs.clients;
 464         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
 465         MSG_WriteByte (&sv.reliable_datagram, i);
 466         MSG_WriteString (&sv.reliable_datagram, host_client->name);
 467         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
 468         MSG_WriteByte (&sv.reliable_datagram, i);
 469         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
 470         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
 471         MSG_WriteByte (&sv.reliable_datagram, i);
 472         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
 473
 474         // free the client now
 475         if (host_client->entitydatabase)
 476                 EntityFrame_FreeDatabase(host_client->entitydatabase);
 477         if (host_client->entitydatabase4)
 478                 EntityFrame4_FreeDatabase(host_client->entitydatabase4);
 479         if (host_client->entitydatabase5)
 480                 EntityFrame5_FreeDatabase(host_client->entitydatabase5);
 481
 482         if (sv.active)
 483         {
 484                 // clear a fields that matter to DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS, and also frags
 485                 PRVM_ED_ClearEdict(host_client->edict);
 486         }
 487
 488         // clear the client struct (this sets active to false)
 489         memset(host_client, 0, sizeof(*host_client));
 490
 491         // update server listing on the master because player count changed
 492         // (which the master uses for filtering empty/full servers)
 493         NetConn_Heartbeat(1);
 494 }
 495
 496 /*
 497 ==================
 498 Host_ShutdownServer
 499
 500 This only happens at the end of a game, not between levels
 501 ==================
 502 */
 503 void Host_ShutdownServer(void)
 504 {
 505         int i;
 506
 507         Con_DPrintf("Host_ShutdownServer\n");
 508
 509         if (!sv.active)
 510                 return;
 511
 512         NetConn_Heartbeat(2);
 513         NetConn_Heartbeat(2);
 514
 515 // make sure all the clients know we're disconnecting
 516         SV_VM_Begin();
 517         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
 518                 if (host_client->active)
 519                         SV_DropClient(false); // server shutdown
 520         SV_VM_End();
 521
 522         NetConn_CloseServerPorts();
 523
 524         sv.active = false;
 525 //
 526 // clear structures
 527 //
 528         memset(&sv, 0, sizeof(sv));
 529         memset(svs.clients, 0, svs.maxclients*sizeof(client_t));
 530 }
 531
 532
 533 //============================================================================
 534
 535 /*
 536 ===================
 537 Host_GetConsoleCommands
 538
 539 Add them exactly as if they had been typed at the console
 540 ===================
 541 */
 542 void Host_GetConsoleCommands (void)
 543 {
 544         char *cmd;
 545
 546         while (1)
 547         {
 548                 cmd = Sys_ConsoleInput ();
 549                 if (!cmd)
 550                         break;
 551                 Cbuf_AddText (cmd);
 552         }
 553 }
 554
 555 /*
 556 ==================
 557 Host_Frame
 558
 559 Runs all active servers
 560 ==================
 561 */
 562 static void Host_Init(void);
 563 void Host_Main(void)
 564 {
 565         static double time1 = 0;
 566         static double time2 = 0;
 567         static double time3 = 0;
 568         // these are static because of setjmp/longjmp warnings in mingw32 gcc 2.95.3
 569         static double frameoldtime, framenewtime, frametime, cl_timer, sv_timer;
 570
 571         Host_Init();
 572
 573         cl_timer = 0;
 574         sv_timer = 0;
 575
 576         framenewtime = Sys_DoubleTime();
 577         for (;;)
 578         {
 579                 if (setjmp(host_abortframe))
 580                         continue;                       // something bad happened, or the server disconnected
 581
 582                 frameoldtime = framenewtime;
 583                 framenewtime = Sys_DoubleTime();
 584                 frametime = framenewtime - frameoldtime;
 585                 realtime += frametime;
 586
 587                 // if there is some time remaining from last frame, rest the timers
 588                 if (cl_timer >= 0)
 589                         cl_timer = 0;
 590                 if (sv_timer >= 0)
 591                         sv_timer = 0;
 592
 593                 // accumulate the new frametime into the timers
 594                 cl_timer += frametime;
 595                 sv_timer += frametime;
 596
 597                 if (slowmo.value < 0)
 598                         Cvar_SetValue("slowmo", 0);
 599                 if (host_framerate.value < 0.00001 && host_framerate.value != 0)
 600                         Cvar_SetValue("host_framerate", 0);
 601                 if (cl_maxfps.value < 1)
 602                         Cvar_SetValue("cl_maxfps", 1);
 603
 604                 // if the accumulators haven't become positive yet, keep waiting
 605                 if (!cls.timedemo && cl_timer <= 0 && sv_timer <= 0)
 606                 {
 607                         double wait;
 608                         int msleft;
 609                         if (cls.state == ca_dedicated)
 610                                 wait = sv_timer;
 611                         else if (!sv.active)
 612                                 wait = cl_timer;
 613                         else
 614                                 wait = max(cl_timer, sv_timer);
 615                         msleft = (int)floor(wait * -1000.0);
 616                         if (msleft >= 1)
 617                                 Sys_Sleep(msleft);
 618                         continue;
 619                 }
 620
 621                 // keep the random time dependent
 622                 rand();
 623
 624                 cl.islocalgame = NetConn_IsLocalGame();
 625
 626                 // get new key events
 627                 Sys_SendKeyEvents();
 628
 629                 // when a server is running we only execute console commands on server frames
 630                 // (this mainly allows frikbot .way config files to work properly by staying in sync with the server qc)
 631                 // otherwise we execute them on all frames
 632                 if (sv_timer > 0 || !sv.active)
 633                 {
 634                         // process console commands
 635                         Cbuf_Execute();
 636                 }
 637
 638                 NetConn_UpdateSockets();
 639
 640                 Curl_Run();
 641
 642         //-------------------
 643         //
 644         // server operations
 645         //
 646         //-------------------
 647
 648                 // check for commands typed to the host
 649                 Host_GetConsoleCommands();
 650
 651                 if (sv_timer > 0)
 652                 {
 653                         if (!sv.active)
 654                         {
 655                                 // if there is no server, run server timing at 10fps
 656                                 sv_timer -= 0.1;
 657                         }
 658                         else
 659                         {
 660                                 // execute one or more server frames, with an upper limit on how much
 661                                 // execution time to spend on server frames to avoid freezing the game if
 662                                 // the server is overloaded, this execution time limit means the game will
 663                                 // slow down if the server is taking too long.
 664                                 int framecount, framelimit = 1;
 665                                 double advancetime, aborttime = 0;
 666
 667                                 // receive server packets now, which might contain rcon commands, which
 668                                 // may change level or other such things we don't want to have happen in
 669                                 // the middle of Host_Frame
 670                                 NetConn_ServerFrame();
 671
 672                                 // run the world state
 673                                 // don't allow simulation to run too fast or too slow or logic glitches can occur
 674
 675                                 // stop running server frames if the wall time reaches this value
 676                                 if (sys_ticrate.value <= 0)
 677                                         advancetime = sv_timer;
 678                                 else if (cl.islocalgame && !sv_fixedframeratesingleplayer.integer)
 679                                 {
 680                                         // synchronize to the client frametime, but no less than 10ms and no more than sys_ticrate
 681                                         advancetime = bound(0.01, cl_timer, sys_ticrate.value);
 682                                         framelimit = 10;
 683                                         aborttime = Sys_DoubleTime() + 0.1;
 684                                 }
 685                                 else
 686                                 {
 687                                         advancetime = sys_ticrate.value;
 688                                         // listen servers can run multiple server frames per client frame
 689                                         if (cls.state == ca_connected)
 690                                         {
 691                                                 framelimit = 10;
 692                                                 aborttime = Sys_DoubleTime() + 0.1;
 693                                         }
 694                                 }
 695                                 advancetime = min(advancetime, 0.1);
 696
 697                                 // only advance time if not paused
 698                                 // the game also pauses in singleplayer when menu or console is used
 699                                 sv.frametime = advancetime * slowmo.value;
 700                                 if (host_framerate.value)
 701                                         sv.frametime = host_framerate.value;
 702                                 if (sv.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive)))
 703                                         sv.frametime = 0;
 704
 705                                 // setup the VM frame
 706                                 SV_VM_Begin();
 707
 708                                 for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
 709                                 {
 710                                         sv_timer -= advancetime;
 711
 712                                         // move things around and think unless paused
 713                                         if (sv.frametime)
 714                                                 SV_Physics();
 715
 716                                         // send all messages to the clients
 717                                         SV_SendClientMessages();
 718
 719                                         // clear the general datagram
 720                                         SV_ClearDatagram();
 721
 722                                         // if this server frame took too long, break out of the loop
 723                                         if (framelimit > 1 && Sys_DoubleTime() >= aborttime)
 724                                                 break;
 725                                 }
 726
 727                                 // end the server VM frame
 728                                 SV_VM_End();
 729
 730                                 // send an heartbeat if enough time has passed since the last one
 731                                 NetConn_Heartbeat(0);
 732                         }
 733                 }
 734
 735         //-------------------
 736         //
 737         // client operations
 738         //
 739         //-------------------
 740
 741                 if (cl_timer > 0 || cls.timedemo)
 742                 {
 743                         if (cls.state == ca_dedicated)
 744                         {
 745                                 // if there is no client, run client timing at 10fps
 746                                 cl_timer -= 0.1;
 747                                 if (host_speeds.integer)
 748                                         time1 = time2 = Sys_DoubleTime();
 749                         }
 750                         else
 751                         {
 752                                 double frametime;
 753                                 frametime = cl.realframetime = min(cl_timer, 1);
 754
 755                                 // decide the simulation time
 756                                 if (!cls.timedemo)
 757                                 {
 758                                         if (cls.capturevideo.active)
 759                                         {
 760                                                 if (cls.capturevideo.realtime)
 761                                                         frametime = cl.realframetime = max(cl.realframetime, 1.0 / cls.capturevideo.framerate);
 762                                                 else
 763                                                 {
 764                                                         frametime = 1.0 / cls.capturevideo.framerate;
 765                                                         cl.realframetime = max(cl.realframetime, frametime);
 766                                                 }
 767                                         }
 768                                         else if (vid_activewindow)
 769                                                 frametime = cl.realframetime = max(cl.realframetime, 1.0 / cl_maxfps.value);
 770                                         else
 771                                                 frametime = cl.realframetime = 0.1;
 772
 773                                         // deduct the frame time from the accumulator
 774                                         cl_timer -= cl.realframetime;
 775
 776                                         // apply slowmo scaling
 777                                         frametime *= slowmo.value;
 778
 779                                         // host_framerate overrides all else
 780                                         if (host_framerate.value)
 781                                                 frametime = host_framerate.value;
 782                                 }
 783
 784                                 cl.oldtime = cl.time;
 785                                 cl.time += frametime;
 786
 787                                 // Collect input into cmd
 788                                 CL_Move();
 789
 790                                 NetConn_ClientFrame();
 791
 792                                 if (cls.state == ca_connected)
 793                                 {
 794                                         CL_ReadFromServer();
 795                                         // if running the server remotely, send intentions now after
 796                                         // the incoming messages have been read
 797                                         //if (!cl.islocalgame)
 798                                         //      CL_SendCmd();
 799                                 }
 800
 801                                 // update video
 802                                 if (host_speeds.integer)
 803                                         time1 = Sys_DoubleTime();
 804
 805                                 //ui_update();
 806
 807                                 CL_VideoFrame();
 808
 809                                 CL_UpdateScreen();
 810
 811                                 if (host_speeds.integer)
 812                                         time2 = Sys_DoubleTime();
 813
 814                                 // update audio
 815                                 if(csqc_usecsqclistener)
 816                                 {
 817                                         S_Update(&csqc_listenermatrix);
 818                                         csqc_usecsqclistener = false;
 819                                 }
 820                                 else
 821                                         S_Update(&r_view.matrix);
 822
 823                                 CDAudio_Update();
 824                         }
 825
 826                         if (host_speeds.integer)
 827                         {
 828                                 int pass1, pass2, pass3;
 829                                 pass1 = (int)((time1 - time3)*1000000);
 830                                 time3 = Sys_DoubleTime();
 831                                 pass2 = (int)((time2 - time1)*1000000);
 832                                 pass3 = (int)((time3 - time2)*1000000);
 833                                 Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
 834                                                         pass1+pass2+pass3, pass1, pass2, pass3);
 835                         }
 836                 }
 837
 838                 host_framecount++;
 839         }
 840 }
 841
 842 //============================================================================
 843
 844 qboolean vid_opened = false;
 845 void Host_StartVideo(void)
 846 {
 847         if (!vid_opened && cls.state != ca_dedicated)
 848         {
 849                 vid_opened = true;
 850                 VID_Start();
 851                 CDAudio_Startup();
 852         }
 853 }
 854
 855 char engineversion[128];
 856
 857 qboolean sys_nostdout = false;
 858
 859 extern void Render_Init(void);
 860 extern void Mathlib_Init(void);
 861 extern void FS_Init(void);
 862 extern void FS_Shutdown(void);
 863 extern void PR_Cmd_Init(void);
 864 extern void COM_Init_Commands(void);
 865 extern void FS_Init_Commands(void);
 866 extern qboolean host_stuffcmdsrun;
 867
 868 /*
 869 ====================
 870 Host_Init
 871 ====================
 872 */
 873 static void Host_Init (void)
 874 {
 875         int i;
 876         const char* os;
 877
 878         // LordHavoc: quake never seeded the random number generator before... heh
 879         srand(time(NULL));
 880
 881         // FIXME: this is evil, but possibly temporary
 882 // COMMANDLINEOPTION: Console: -developer enables warnings and other notices (RECOMMENDED for mod developers)
 883         if (COM_CheckParm("-developer"))
 884         {
 885                 developer.value = developer.integer = 100;
 886                 developer.string = "100";
 887         }
 888
 889         if (COM_CheckParm("-developer2"))
 890         {
 891                 developer.value = developer.integer = 100;
 892                 developer.string = "100";
 893                 developer_memory.value = developer_memory.integer = 100;
 894                 developer.string = "100";
 895                 developer_memorydebug.value = developer_memorydebug.integer = 100;
 896                 developer_memorydebug.string = "100";
 897         }
 898
 899 // COMMANDLINEOPTION: Console: -nostdout disables text output to the terminal the game was launched from
 900         if (COM_CheckParm("-nostdout"))
 901                 sys_nostdout = 1;
 902
 903         // used by everything
 904         Memory_Init();
 905
 906         // initialize console command/cvar/alias/command execution systems
 907         Cmd_Init();
 908
 909         // initialize memory subsystem cvars/commands
 910         Memory_Init_Commands();
 911
 912         // initialize console and logging and its cvars/commands
 913         Con_Init();
 914
 915         // initialize various cvars that could not be initialized earlier
 916         Curl_Init_Commands();
 917         Cmd_Init_Commands();
 918         Sys_Init_Commands();
 919         COM_Init_Commands();
 920         FS_Init_Commands();
 921
 922         // initialize console window (only used by sys_win.c)
 923         Sys_InitConsole();
 924
 925         // detect gamemode from commandline options or executable name
 926         COM_InitGameType();
 927
 928         // construct a version string for the corner of the console
 929 #if defined(__linux__)
 930         os = "Linux";
 931 #elif defined(WIN32)
 932         os = "Windows";
 933 #elif defined(__FreeBSD__)
 934         os = "FreeBSD";
 935 #elif defined(__NetBSD__)
 936         os = "NetBSD";
 937 #elif defined(__OpenBSD__)
 938         os = "OpenBSD";
 939 #elif defined(MACOSX)
 940         os = "Mac OS X";
 941 #elif defined(__MORPHOS__)
 942         os = "MorphOS";
 943 #else
 944         os = "Unknown";
 945 #endif
 946         dpsnprintf (engineversion, sizeof (engineversion), "%s %s %s", gamename, os, buildstring);
 947         Con_Printf("%s\n", engineversion);
 948
 949         // initialize ixtable
 950         Mathlib_Init();
 951
 952         // initialize filesystem (including fs_basedir, fs_gamedir, -path, -game, scr_screenshot_name)
 953         FS_Init();
 954
 955         NetConn_Init();
 956         Curl_Init();
 957         //PR_Init();
 958         //PR_Cmd_Init();
 959         PRVM_Init();
 960         Mod_Init();
 961         SV_Init();
 962         Host_InitCommands();
 963         Host_InitLocal();
 964         Host_ServerOptions();
 965
 966         if (cls.state != ca_dedicated)
 967         {
 968                 Con_Printf("Initializing client\n");
 969
 970                 R_Modules_Init();
 971                 Palette_Init();
 972                 MR_Init_Commands();
 973                 VID_Shared_Init();
 974                 VID_Init();
 975                 Render_Init();
 976                 S_Init();
 977                 CDAudio_Init();
 978                 Key_Init();
 979                 V_Init();
 980                 CL_Init();
 981         }
 982
 983         // set up the default startmap_sp and startmap_dm aliases (mods can
 984         // override these) and then execute the quake.rc startup script
 985         if (gamemode == GAME_NEHAHRA)
 986                 Cbuf_AddText("alias startmap_sp \"map nehstart\"\nalias startmap_dm \"map nehstart\"\nexec quake.rc\n");
 987         else if (gamemode == GAME_TRANSFUSION)
 988                 Cbuf_AddText("alias startmap_sp \"map e1m1\"\n""alias startmap_dm \"map bb1\"\nexec quake.rc\n");
 989         else if (gamemode == GAME_TEU)
 990                 Cbuf_AddText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec teu.rc\n");
 991         else
 992                 Cbuf_AddText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec quake.rc\n");
 993         Cbuf_Execute();
 994
 995         // if stuffcmds wasn't run, then quake.rc is probably missing, use default
 996         if (!host_stuffcmdsrun)
 997         {
 998                 Cbuf_AddText("exec default.cfg\nexec config.cfg\nexec autoexec.cfg\nstuffcmds\n");
 999                 Cbuf_Execute();
1000         }
1001
1002         // put up the loading image so the user doesn't stare at a black screen...
1003         SCR_BeginLoadingPlaque();
1004
1005         // FIXME: put this into some neat design, but the menu should be allowed to crash
1006         // without crashing the whole game, so this should just be a short-time solution
1007
1008         // here comes the not so critical stuff
1009         if (setjmp(host_abortframe)) {
1010                 return;
1011         }
1012
1013         if (cls.state != ca_dedicated)
1014         {
1015                 MR_Init();
1016         }
1017
1018         // check for special benchmark mode
1019 // COMMANDLINEOPTION: Client: -benchmark <demoname> runs a timedemo and quits, results of any timedemo can be found in gamedir/benchmark.log (for example id1/benchmark.log)
1020         i = COM_CheckParm("-benchmark");
1021         if (i && i + 1 < com_argc)
1022         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1023         {
1024                 Cbuf_AddText(va("timedemo %s\n", com_argv[i + 1]));
1025                 Cbuf_Execute();
1026         }
1027
1028         // check for special demo mode
1029 // COMMANDLINEOPTION: Client: -demo <demoname> runs a playdemo and quits
1030         i = COM_CheckParm("-demo");
1031         if (i && i + 1 < com_argc)
1032         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1033         {
1034                 Cbuf_AddText(va("playdemo %s\n", com_argv[i + 1]));
1035                 Cbuf_Execute();
1036         }
1037
1038         // check for special demolooponly mode
1039 // COMMANDLINEOPTION: Client: -demolooponly <demoname> runs a playdemo and quits
1040         i = COM_CheckParm("-demolooponly");
1041         if (i && i + 1 < com_argc)
1042         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1043         {
1044                 Cbuf_AddText(va("playdemo %s\n", com_argv[i + 1]));
1045                 Cbuf_Execute();
1046         }
1047
1048         if (cls.state == ca_dedicated || COM_CheckParm("-listen"))
1049         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1050         {
1051                 Cbuf_AddText("startmap_dm\n");
1052                 Cbuf_Execute();
1053         }
1054
1055         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1056         {
1057                 if (gamemode == GAME_NEXUIZ)
1058                         Cbuf_AddText("togglemenu\nplayvideo logo\ncd loop 1\n");
1059                 else
1060                         Cbuf_AddText("togglemenu\n");
1061                 Cbuf_Execute();
1062         }
1063
1064         Con_DPrint("========Initialized=========\n");
1065
1066         //Host_StartVideo();
1067 }
1068
1069
1070 /*
1071 ===============
1072 Host_Shutdown
1073
1074 FIXME: this is a callback from Sys_Quit and Sys_Error.  It would be better
1075 to run quit through here before the final handoff to the sys code.
1076 ===============
1077 */
1078 void Host_Shutdown(void)
1079 {
1080         static qboolean isdown = false;
1081
1082         if (isdown)
1083         {
1084                 Con_Print("recursive shutdown\n");
1085                 return;
1086         }
1087         isdown = true;
1088
1089         // be quiet while shutting down
1090         S_StopAllSounds();
1091
1092         // disconnect client from server if active
1093         CL_Disconnect();
1094
1095         // shut down local server if active
1096         Host_ShutdownServer ();
1097
1098         // Shutdown menu
1099         if(MR_Shutdown)
1100                 MR_Shutdown();
1101
1102         // AK shutdown PRVM
1103         // AK hmm, no PRVM_Shutdown(); yet
1104
1105         CL_Video_Shutdown();
1106
1107         Host_SaveConfig_f();
1108
1109         CDAudio_Shutdown ();
1110         S_Terminate ();
1111         Curl_Shutdown ();
1112         NetConn_Shutdown ();
1113         //PR_Shutdown ();
1114
1115         if (cls.state != ca_dedicated)
1116         {
1117                 R_Modules_Shutdown();
1118                 VID_Shutdown();
1119         }
1120
1121         Cmd_Shutdown();
1122         CL_Shutdown();
1123         Sys_Shutdown();
1124         Log_Close();
1125         FS_Shutdown();
1126         Memory_Shutdown();
1127 }
1128