ref: 6e2e50007181ef3cbd332fbffbb95993c0b3b58c
dir: /src/doom/d_net.c/
// // Copyright(C) 1993-1996 Id Software, Inc. // Copyright(C) 2005-2014 Simon Howard // // This program is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License // as published by the Free Software Foundation; either version 2 // of the License, or (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // DESCRIPTION: // DOOM Network game communication and protocol, // all OS independend parts. // #include <stdlib.h> #include "d_main.h" #include "m_argv.h" #include "m_menu.h" #include "m_misc.h" #include "i_system.h" #include "i_timer.h" #include "i_video.h" #include "g_game.h" #include "doomdef.h" #include "doomstat.h" #include "w_checksum.h" #include "w_wad.h" #include "deh_main.h" #include "d_loop.h" ticcmd_t *netcmds; // Called when a player leaves the game static void PlayerQuitGame(player_t *player) { static char exitmsg[80]; unsigned int player_num; player_num = player - players; // Do this the same way as Vanilla Doom does, to allow dehacked // replacements of this message M_StringCopy(exitmsg, DEH_String("Player 1 left the game"), sizeof(exitmsg)); exitmsg[7] += player_num; playeringame[player_num] = false; players[consoleplayer].message = exitmsg; // TODO: check if it is sensible to do this: if (demorecording) { G_CheckDemoStatus (); } } static void RunTic(ticcmd_t *cmds, boolean *ingame) { extern boolean advancedemo; unsigned int i; // Check for player quits. for (i = 0; i < MAXPLAYERS; ++i) { if (!demoplayback && playeringame[i] && !ingame[i]) { PlayerQuitGame(&players[i]); } } netcmds = cmds; // check that there are players in the game. if not, we cannot // run a tic. if (advancedemo) D_DoAdvanceDemo (); G_Ticker (); } static loop_interface_t doom_loop_interface = { D_ProcessEvents, G_BuildTiccmd, RunTic, M_Ticker }; // Load game settings from the specified structure and // set global variables. static void LoadGameSettings(net_gamesettings_t *settings) { unsigned int i; deathmatch = settings->deathmatch; startepisode = settings->episode; startmap = settings->map; startskill = settings->skill; startloadgame = settings->loadgame; lowres_turn = settings->lowres_turn; nomonsters = settings->nomonsters; fastparm = settings->fast_monsters; respawnparm = settings->respawn_monsters; timelimit = settings->timelimit; consoleplayer = settings->consoleplayer; if (lowres_turn) { printf("NOTE: Turning resolution is reduced; this is probably " "because there is a client recording a Vanilla demo.\n"); } for (i = 0; i < MAXPLAYERS; ++i) { playeringame[i] = i < settings->num_players; } } // Save the game settings from global variables to the specified // game settings structure. static void SaveGameSettings(net_gamesettings_t *settings) { // Fill in game settings structure with appropriate parameters // for the new game settings->deathmatch = deathmatch; settings->episode = startepisode; settings->map = startmap; settings->skill = startskill; settings->loadgame = startloadgame; settings->gameversion = gameversion; settings->nomonsters = nomonsters; settings->fast_monsters = fastparm; settings->respawn_monsters = respawnparm; settings->timelimit = timelimit; settings->lowres_turn = (M_ParmExists("-record") && !M_ParmExists("-longtics")) || M_ParmExists("-shorttics"); } static void InitConnectData(net_connect_data_t *connect_data) { boolean shorttics; connect_data->max_players = MAXPLAYERS; connect_data->drone = false; //! // @category net // // Run as the left screen in three screen mode. // if (M_CheckParm("-left") > 0) { viewangleoffset = ANG90; connect_data->drone = true; } //! // @category net // // Run as the right screen in three screen mode. // if (M_CheckParm("-right") > 0) { viewangleoffset = ANG270; connect_data->drone = true; } // // Connect data // // Game type fields: connect_data->gamemode = gamemode; connect_data->gamemission = gamemission; //! // @category demo // // Play with low turning resolution to emulate demo recording. // shorttics = M_ParmExists("-shorttics"); // Are we recording a demo? Possibly set lowres turn mode connect_data->lowres_turn = (M_ParmExists("-record") && !M_ParmExists("-longtics")) || shorttics; // Read checksums of our WAD directory and dehacked information W_Checksum(connect_data->wad_sha1sum); DEH_Checksum(connect_data->deh_sha1sum); // Are we playing with the Freedoom IWAD? connect_data->is_freedoom = W_CheckNumForName("FREEDOOM") >= 0; } void D_ConnectNetGame(void) { net_connect_data_t connect_data; InitConnectData(&connect_data); netgame = D_InitNetGame(&connect_data); //! // @category net // // Start the game playing as though in a netgame with a single // player. This can also be used to play back single player netgame // demos. // if (M_CheckParm("-solo-net") > 0) { netgame = true; } } // // D_CheckNetGame // Works out player numbers among the net participants // void D_CheckNetGame (void) { net_gamesettings_t settings; if (netgame) { autostart = true; } D_RegisterLoopCallbacks(&doom_loop_interface); SaveGameSettings(&settings); D_StartNetGame(&settings, NULL); LoadGameSettings(&settings); DEH_printf("startskill %i deathmatch: %i startmap: %i startepisode: %i\n", startskill, deathmatch, startmap, startepisode); DEH_printf("player %i of %i (%i nodes)\n", consoleplayer+1, settings.num_players, settings.num_players); // Show players here; the server might have specified a time limit if (timelimit > 0 && deathmatch) { // Gross hack to work like Vanilla: if (timelimit == 20 && M_CheckParm("-avg")) { DEH_printf("Austin Virtual Gaming: Levels will end " "after 20 minutes\n"); } else { DEH_printf("Levels will end after %d minute", timelimit); if (timelimit > 1) printf("s"); printf(".\n"); } } }