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-rw-r--r--src/doom/d_net.c306
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diff --git a/src/doom/d_net.c b/src/doom/d_net.c
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+// Emacs style mode select -*- C++ -*-
+//-----------------------------------------------------------------------------
+//
+// Copyright(C) 1993-1996 Id Software, Inc.
+// Copyright(C) 2005 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.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+// 02111-1307, USA.
+//
+// DESCRIPTION:
+// DOOM Network game communication and protocol,
+// all OS independend parts.
+//
+//-----------------------------------------------------------------------------
+
+#include <stdlib.h>
+
+#include "doomfeatures.h"
+
+#include "d_main.h"
+#include "m_argv.h"
+#include "m_menu.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
+
+ strncpy(exitmsg, DEH_String("Player 1 left the game"), sizeof(exitmsg));
+ exitmsg[sizeof(exitmsg) - 1] = '\0';
+
+ 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,
+ net_connect_data_t *connect_data)
+{
+ unsigned int i;
+
+ deathmatch = settings->deathmatch;
+ ticdup = settings->ticdup;
+ 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;
+
+ if (lowres_turn)
+ {
+ printf("NOTE: Turning resolution is reduced; this is probably "
+ "because there is a client recording a Vanilla demo.\n");
+ }
+
+ if (!connect_data->drone)
+ {
+ consoleplayer = settings->consoleplayer;
+ }
+ else
+ {
+ consoleplayer = 0;
+ }
+
+ 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,
+ net_connect_data_t *connect_data)
+{
+ // 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_CheckParm("-record") > 0
+ && M_CheckParm("-longtics") == 0;
+
+ connect_data->drone = false;
+ connect_data->max_players = MAXPLAYERS;
+
+ //!
+ // @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;
+
+ // Are we recording a demo? Possibly set lowres turn mode
+
+ connect_data->lowres_turn = settings->lowres_turn;
+
+ // Read checksums of our WAD directory and dehacked information
+
+ W_Checksum(connect_data->wad_md5sum);
+ DEH_Checksum(connect_data->deh_md5sum);
+
+ // Are we playing with the Freedoom IWAD?
+
+ connect_data->is_freedoom = W_CheckNumForName("FREEDOOM") >= 0;
+}
+
+void D_InitSinglePlayerGame(net_gamesettings_t *settings)
+{
+ // default values for single player
+
+ settings->consoleplayer = 0;
+ settings->num_players = 1;
+
+ netgame = false;
+
+ //!
+ // @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
+//
+extern int viewangleoffset;
+
+void D_CheckNetGame (void)
+{
+ net_connect_data_t connect_data;
+ net_gamesettings_t settings;
+
+ D_RegisterLoopCallbacks(&doom_loop_interface);
+
+ // Call D_QuitNetGame on exit
+
+ I_AtExit(D_QuitNetGame, true);
+
+ SaveGameSettings(&settings, &connect_data);
+
+ if (D_InitNetGame(&connect_data, &settings))
+ {
+ netgame = true;
+ autostart = true;
+ }
+ else
+ {
+ D_InitSinglePlayerGame(&settings);
+ }
+
+ LoadGameSettings(&settings, &connect_data);
+
+ 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");
+ }
+ }
+}
+
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