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https://github.com/DrBeef/DVR.git
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570 lines
15 KiB
C
570 lines
15 KiB
C
/* Emacs style mode select -*- C++ -*-
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*-----------------------------------------------------------------------------
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*
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*
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* PrBoom: a Doom port merged with LxDoom and LSDLDoom
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* based on BOOM, a modified and improved DOOM engine
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* Copyright (C) 1999 by
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* id Software, Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman
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* Copyright (C) 1999-2000 by
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* Jess Haas, Nicolas Kalkhof, Colin Phipps, Florian Schulze
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* Copyright 2005, 2006 by
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* Florian Schulze, Colin Phipps, Neil Stevens, Andrey Budko
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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* DESCRIPTION:
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* Network client. Passes information to/from server, staying
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* synchronised.
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* Contains the main wait loop, waiting for network input or
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* time before doing the next tic.
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* Rewritten for LxDoom, but based around bits of the old code.
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*
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*-----------------------------------------------------------------------------
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <sys/types.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_SYS_WAIT_H
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#include <sys/wait.h>
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#endif
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#ifdef USE_SDL_NET
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// Vladimir #include "SDL.h"
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#endif
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#include "doomtype.h"
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#include "doomstat.h"
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#include "d_net.h"
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#include "z_zone.h"
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#include "d_main.h"
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#include "g_game.h"
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#include "m_menu.h"
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#include "p_checksum.h"
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#include "protocol.h"
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#include "i_network.h"
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#include "i_system.h"
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#include "i_main.h"
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#include "i_video.h"
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#include "m_argv.h"
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#include "r_fps.h"
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#include "lprintf.h"
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#include "jni_doom.h"
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static boolean server;
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static int remotetic; // Tic expected from the remote
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static int remotesend; // Tic expected by the remote
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ticcmd_t netcmds[MAXPLAYERS][BACKUPTICS];
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static ticcmd_t* localcmds;
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static unsigned numqueuedpackets;
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static packet_header_t** queuedpacket;
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int maketic;
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int ticdup = 1;
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static int xtratics = 0;
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int wanted_player_number;
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static boolean isExtraDDisplay = false;
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static void D_QuitNetGame (void);
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extern char *doomWADDir;
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#ifndef HAVE_NET
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doomcom_t* doomcom;
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#endif
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#ifdef HAVE_NET
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void D_InitNetGame (void)
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{
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int i;
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int numplayers = 1;
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i = M_CheckParm("-net");
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if (i && i < myargc-1) i++;
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if (!(netgame = server = !!i)) {
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playeringame[consoleplayer = 0] = true;
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// e6y
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// for play, recording or playback using "single-player coop" mode.
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// Equivalent to using prboom_server with -N 1
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netgame = M_CheckParm("-solo-net");
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} else {
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// Get game info from server
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packet_header_t *packet = Z_Malloc(1000, PU_STATIC, NULL);
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struct setup_packet_s *sinfo = (void*)(packet+1);
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struct { packet_header_t head; short pn; } PACKEDATTR initpacket;
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I_InitNetwork();
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udp_socket = I_Socket(0);
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I_ConnectToServer(myargv[i]);
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do
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{
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do {
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// Send init packet
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initpacket.pn = doom_htons(wanted_player_number);
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packet_set(&initpacket.head, PKT_INIT, 0);
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I_SendPacket(&initpacket.head, sizeof(initpacket));
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I_WaitForPacket(5000);
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} while (!I_GetPacket(packet, 1000));
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if (packet->type == PKT_DOWN) I_Error("Server aborted the game");
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} while (packet->type != PKT_SETUP);
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// Once we have been accepted by the server, we should tell it when we leave
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atexit(D_QuitNetGame);
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// Get info from the setup packet
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consoleplayer = sinfo->yourplayer;
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compatibility_level = sinfo->complevel;
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G_Compatibility();
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startskill = sinfo->skill;
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deathmatch = sinfo->deathmatch;
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startmap = sinfo->level;
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startepisode = sinfo->episode;
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ticdup = sinfo->ticdup;
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xtratics = sinfo->extratic;
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G_ReadOptions(sinfo->game_options);
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lprintf(LO_INFO, "\tjoined game as player %d/%d; %d WADs specified\n",
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consoleplayer+1, numplayers = sinfo->players, sinfo->numwads);
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{
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char *p = sinfo->wadnames;
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int i = sinfo->numwads;
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while (i--) {
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#ifdef USE_ANDROID
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char tmp[80];
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strcpy(tmp, doomWADDir);
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strcat(tmp, "/");
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strcat(tmp, p);
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D_AddFile(tmp, source_net);
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#else
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D_AddFile(p, source_net);
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#endif
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p += strlen(p) + 1;
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}
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}
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Z_Free(packet);
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}
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localcmds = netcmds[displayplayer = consoleplayer];
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for (i=0; i<numplayers; i++)
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playeringame[i] = true;
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for (; i<MAXPLAYERS; i++)
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playeringame[i] = false;
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if (!playeringame[consoleplayer]) I_Error("D_InitNetGame: consoleplayer not in game");
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}
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#else
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void D_InitNetGame (void)
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{
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int i;
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doomcom = Z_Malloc(sizeof *doomcom, PU_STATIC, NULL);
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doomcom->consoleplayer = 0;
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doomcom->numnodes = 0; doomcom->numplayers = 1;
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localcmds = netcmds[consoleplayer];
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netgame = (M_CheckParm("-solo-net") != 0);
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for (i=0; i<doomcom->numplayers; i++)
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playeringame[i] = true;
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for (; i<MAXPLAYERS; i++)
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playeringame[i] = false;
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consoleplayer = displayplayer = doomcom->consoleplayer;
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}
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#endif // HAVE_NET
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#ifdef HAVE_NET
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void D_CheckNetGame(void)
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{
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packet_header_t *packet = Z_Malloc(sizeof(packet_header_t)+1, PU_STATIC, NULL);
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if (server) {
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lprintf(LO_INFO, "D_CheckNetGame: waiting for server to signal game start\n");
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#ifdef USE_ANDROID
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jni_info_msg("Waiting for server to signal game start!", TT_LONG_DELAY | TT_COLOR_RED);
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#endif
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do {
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while (!I_GetPacket(packet, sizeof(packet_header_t)+1)) {
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packet_set(packet, PKT_GO, 0);
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*(byte*)(packet+1) = consoleplayer;
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I_SendPacket(packet, sizeof(packet_header_t)+1);
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I_uSleep(100000);
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}
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} while (packet->type != PKT_GO);
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}
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Z_Free(packet);
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}
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boolean D_NetGetWad(const char* name)
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{
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#if defined(HAVE_WAIT_H)
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size_t psize = sizeof(packet_header_t) + strlen(name) + 500;
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packet_header_t *packet;
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boolean done = false;
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if (!server || strchr(name, '/')) return false; // If it contains path info, reject
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do {
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// Send WAD request to remote
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packet = Z_Malloc(psize, PU_STATIC, NULL);
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packet_set(packet, PKT_WAD, 0);
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*(byte*)(packet+1) = consoleplayer;
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strcpy(1+(byte*)(packet+1), name);
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I_SendPacket(packet, sizeof(packet_header_t) + strlen(name) + 2);
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I_uSleep(10000);
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} while (!I_GetPacket(packet, psize) || (packet->type != PKT_WAD));
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Z_Free(packet);
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if (!strcasecmp((void*)(packet+1), name)) {
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pid_t pid;
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int rv;
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byte *p = (byte*)(packet+1) + strlen(name) + 1;
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/* Automatic wad file retrieval using wget (supports http and ftp, using URLs)
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* Unix systems have all these commands handy, this kind of thing is easy
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* Any windo$e port will have some awkward work replacing these.
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*/
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/* cph - caution here. This is data from an untrusted source.
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* Don't pass it via a shell. */
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if ((pid = fork()) == -1)
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perror("fork");
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else if (!pid) {
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/* Child chains to wget, does the download */
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execlp("wget", "wget", p, NULL);
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}
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/* This is the parent, i.e. main LxDoom process */
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wait(&rv);
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if (!(done = !access(name, R_OK))) {
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if (!strcmp(p+strlen(p)-4, ".zip")) {
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p = strrchr(p, '/')+1;
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if ((pid = fork()) == -1)
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perror("fork");
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else if (!pid) {
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/* Child executes decompressor */
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execlp("unzip", "unzip", p, name, NULL);
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}
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/* Parent waits for the file */
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wait(&rv);
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done = !!access(name, R_OK);
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}
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/* Add more decompression protocols here as desired */
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}
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Z_Free(buffer);
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}
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return done;
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#else /* HAVE_WAIT_H */
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return false;
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#endif
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}
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void NetUpdate(void)
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{
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static int lastmadetic;
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if (isExtraDDisplay)
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return;
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if (server) { // Receive network packets
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size_t recvlen;
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packet_header_t *packet = Z_Malloc(10000, PU_STATIC, NULL);
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while ((recvlen = I_GetPacket(packet, 10000))) {
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switch(packet->type) {
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case PKT_TICS:
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{
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byte *p = (void*)(packet+1);
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int tics = *p++;
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unsigned long ptic = doom_ntohl(packet->tic);
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if (ptic > (unsigned)remotetic) { // Missed some
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packet_set(packet, PKT_RETRANS, remotetic);
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*(byte*)(packet+1) = consoleplayer;
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I_SendPacket(packet, sizeof(*packet)+1);
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} else {
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if (ptic + tics <= (unsigned)remotetic) break; // Will not improve things
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remotetic = ptic;
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while (tics--) {
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int players = *p++;
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while (players--) {
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int n = *p++;
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RawToTic(&netcmds[n][remotetic%BACKUPTICS], p);
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p += sizeof(ticcmd_t);
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}
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remotetic++;
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}
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}
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}
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break;
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case PKT_RETRANS: // Resend request
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remotesend = doom_ntohl(packet->tic);
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break;
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case PKT_DOWN: // Server downed
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{
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int j;
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for (j=0; j<MAXPLAYERS; j++)
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if (j != consoleplayer) playeringame[j] = false;
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server = false;
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doom_printf("Server is down\nAll other players are no longer in the game\n");
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jni_info_msg("Server is down\nAll other players are no longer in the game!", TT_LONG_DELAY | TT_COLOR_RED);
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}
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break;
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case PKT_EXTRA: // Misc stuff
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case PKT_QUIT: // Player quit
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// Queue packet to be processed when its tic time is reached
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queuedpacket = Z_Realloc(queuedpacket, ++numqueuedpackets * sizeof *queuedpacket,
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PU_STATIC, NULL);
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queuedpacket[numqueuedpackets-1] = Z_Malloc(recvlen, PU_STATIC, NULL);
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memcpy(queuedpacket[numqueuedpackets-1], packet, recvlen);
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break;
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case PKT_BACKOFF:
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/* cph 2003-09-18 -
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* The server sends this when we have got ahead of the other clients. We should
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* stall the input side on this client, to allow other clients to catch up.
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*/
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lastmadetic++;
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break;
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default: // Other packet, unrecognised or redundant
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break;
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}
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}
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Z_Free(packet);
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}
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{ // Build new ticcmds
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int newtics = I_GetTime() - lastmadetic;
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newtics = (newtics > 0 ? newtics : 0);
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lastmadetic += newtics;
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if (ffmap) newtics++;
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while (newtics--) {
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I_StartTic();
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if (maketic - gametic > BACKUPTICS/2) break;
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G_BuildTiccmd(&localcmds[maketic%BACKUPTICS]);
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maketic++;
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}
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if (server && maketic > remotesend) { // Send the tics to the server
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int sendtics;
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remotesend -= xtratics;
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if (remotesend < 0) remotesend = 0;
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sendtics = maketic - remotesend;
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{
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size_t pkt_size = sizeof(packet_header_t) + 2 + sendtics * sizeof(ticcmd_t);
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packet_header_t *packet = Z_Malloc(pkt_size, PU_STATIC, NULL);
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packet_set(packet, PKT_TICC, maketic - sendtics);
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*(byte*)(packet+1) = sendtics;
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*(((byte*)(packet+1))+1) = consoleplayer;
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{
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void *tic = ((byte*)(packet+1)) +2;
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while (sendtics--) {
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TicToRaw(tic, &localcmds[remotesend++%BACKUPTICS]);
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tic = (byte *)tic + sizeof(ticcmd_t);
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}
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}
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I_SendPacket(packet, pkt_size);
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Z_Free(packet);
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}
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}
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}
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}
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#else
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void D_BuildNewTiccmds(void)
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{
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static int lastmadetic;
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int newtics = I_GetTime() - lastmadetic;
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lastmadetic += newtics;
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while (newtics--)
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{
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I_StartTic();
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if (maketic - gametic > BACKUPTICS/2) break;
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G_BuildTiccmd( &localcmds[maketic % BACKUPTICS] );
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maketic++;
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}
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}
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#endif
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#ifdef HAVE_NET
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/* cph - data passed to this must be in the Doom (little-) endian */
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void D_NetSendMisc(netmisctype_t type, size_t len, void* data)
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{
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if (server) {
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size_t size = sizeof(packet_header_t) + 3*sizeof(int) + len;
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packet_header_t *packet = Z_Malloc(size, PU_STATIC, NULL);
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int *p = (void*)(packet+1);
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packet_set(packet, PKT_EXTRA, gametic);
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*p++ = LONG(type); *p++ = LONG(consoleplayer); *p++ = LONG(len);
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memcpy(p, data, len);
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I_SendPacket(packet, size);
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Z_Free(packet);
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}
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}
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static void CheckQueuedPackets(void)
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{
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int i;
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for (i=0; (unsigned)i<numqueuedpackets; i++)
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if (doom_ntohl(queuedpacket[i]->tic) <= gametic)
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switch (queuedpacket[i]->type) {
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case PKT_QUIT: // Player quit the game
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{
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int pn = *(byte*)(queuedpacket[i]+1);
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playeringame[pn] = false;
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doom_printf("Player %d left the game\n", pn);
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}
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break;
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case PKT_EXTRA:
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{
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int *p = (int*)(queuedpacket[i]+1);
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size_t len = LONG(*(p+2));
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switch (LONG(*p)) {
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case nm_plcolour:
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G_ChangedPlayerColour(LONG(*(p+1)), LONG(*(p+3)));
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break;
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case nm_savegamename:
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if (len < SAVEDESCLEN) {
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memcpy(savedescription, p+3, len);
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// Force terminating 0 in case
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savedescription[len] = 0;
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}
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break;
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}
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}
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break;
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default: // Should not be queued
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break;
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}
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{ // Requeue remaining packets
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int newnum = 0;
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packet_header_t **newqueue = NULL;
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for (i=0; (unsigned)i<numqueuedpackets; i++)
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if (doom_ntohl(queuedpacket[i]->tic) > gametic) {
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newqueue = Z_Realloc(newqueue, ++newnum * sizeof *newqueue,
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PU_STATIC, NULL);
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newqueue[newnum-1] = queuedpacket[i];
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} else Z_Free(queuedpacket[i]);
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Z_Free(queuedpacket);
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numqueuedpackets = newnum; queuedpacket = newqueue;
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}
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}
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#endif // HAVE_NET
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void TryRunTics ()
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{
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int runtics;
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int entertime = I_GetTime();
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// Wait for tics to run
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while (1) {
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#ifdef HAVE_NET
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NetUpdate();
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#else
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D_BuildNewTiccmds();
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#endif
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runtics = (server ? remotetic : maketic) - gametic;
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if (!runtics) {
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if (!movement_smooth) {
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#ifdef HAVE_NET
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if (server)
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I_WaitForPacket(ms_to_next_tick);
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else
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#endif
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I_uSleep(ms_to_next_tick*1000);
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}
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if (I_GetTime() - entertime > 10) {
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#ifdef HAVE_NET
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if (server) {
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char buf[sizeof(packet_header_t)+1];
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remotesend--;
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packet_set((packet_header_t *)buf, PKT_RETRANS, remotetic);
|
|
buf[sizeof(buf)-1] = consoleplayer;
|
|
I_SendPacket((packet_header_t *)buf, sizeof buf);
|
|
}
|
|
#endif
|
|
|
|
M_Ticker(); return;
|
|
}
|
|
//if ((displaytime) < (tic_vars.next-SDL_GetTicks()))
|
|
{
|
|
WasRenderedInTryRunTics = true;
|
|
if (V_GetMode() == VID_MODEGL ?
|
|
movement_smooth :
|
|
movement_smooth && gamestate==wipegamestate)
|
|
{
|
|
isExtraDDisplay = true;
|
|
D_Display(0);
|
|
D_Display(1);
|
|
isExtraDDisplay = false;
|
|
}
|
|
}
|
|
} else break;
|
|
}
|
|
|
|
while (runtics--) {
|
|
#ifdef HAVE_NET
|
|
if (server) CheckQueuedPackets();
|
|
#endif
|
|
|
|
|
|
if (advancedemo)
|
|
D_DoAdvanceDemo ();
|
|
|
|
|
|
M_Ticker ();
|
|
I_GetTime_SaveMS();
|
|
G_Ticker ();
|
|
P_Checksum(gametic);
|
|
gametic++;
|
|
#ifdef HAVE_NET
|
|
NetUpdate(); // Keep sending our tics to avoid stalling remote nodes
|
|
#endif
|
|
}
|
|
}
|
|
|
|
#ifdef HAVE_NET
|
|
static void D_QuitNetGame (void)
|
|
{
|
|
byte buf[1 + sizeof(packet_header_t)];
|
|
packet_header_t *packet = (void*)buf;
|
|
int i;
|
|
|
|
if (!server) return;
|
|
buf[sizeof(packet_header_t)] = consoleplayer;
|
|
packet_set(packet, PKT_QUIT, gametic);
|
|
|
|
for (i=0; i<4; i++) {
|
|
I_SendPacket(packet, 1 + sizeof(packet_header_t));
|
|
I_uSleep(10000);
|
|
}
|
|
}
|
|
#endif
|