kolibrios/contrib/other/sdlquake-1.0.9/net_vcr.c

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/*
Copyright (C) 1996-1997 Id Software, Inc.
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.
*/
// net_vcr.c
#include "quakedef.h"
#include "net_vcr.h"
extern int vcrFile;
// This is the playback portion of the VCR. It reads the file produced
// by the recorder and plays it back to the host. The recording contains
// everything necessary (events, timestamps, and data) to duplicate the game
// from the viewpoint of everything above the network layer.
static struct
{
double time;
int op;
long session;
} next;
int VCR_Init (void)
{
net_drivers[0].Init = VCR_Init;
net_drivers[0].SearchForHosts = VCR_SearchForHosts;
net_drivers[0].Connect = VCR_Connect;
net_drivers[0].CheckNewConnections = VCR_CheckNewConnections;
net_drivers[0].QGetMessage = VCR_GetMessage;
net_drivers[0].QSendMessage = VCR_SendMessage;
net_drivers[0].CanSendMessage = VCR_CanSendMessage;
net_drivers[0].Close = VCR_Close;
net_drivers[0].Shutdown = VCR_Shutdown;
Sys_FileRead(vcrFile, &next, sizeof(next));
return 0;
}
void VCR_ReadNext (void)
{
if (Sys_FileRead(vcrFile, &next, sizeof(next)) == 0)
{
next.op = 255;
Sys_Error ("=== END OF PLAYBACK===\n");
}
if (next.op < 1 || next.op > VCR_MAX_MESSAGE)
Sys_Error ("VCR_ReadNext: bad op");
}
void VCR_Listen (qboolean state)
{
}
void VCR_Shutdown (void)
{
}
int VCR_GetMessage (qsocket_t *sock)
{
int ret;
if (host_time != next.time || next.op != VCR_OP_GETMESSAGE || next.session != *(long *)(&sock->driverdata))
Sys_Error ("VCR missmatch");
Sys_FileRead(vcrFile, &ret, sizeof(int));
if (ret != 1)
{
VCR_ReadNext ();
return ret;
}
Sys_FileRead(vcrFile, &net_message.cursize, sizeof(int));
Sys_FileRead(vcrFile, net_message.data, net_message.cursize);
VCR_ReadNext ();
return 1;
}
int VCR_SendMessage (qsocket_t *sock, sizebuf_t *data)
{
int ret;
if (host_time != next.time || next.op != VCR_OP_SENDMESSAGE || next.session != *(long *)(&sock->driverdata))
Sys_Error ("VCR missmatch");
Sys_FileRead(vcrFile, &ret, sizeof(int));
VCR_ReadNext ();
return ret;
}
qboolean VCR_CanSendMessage (qsocket_t *sock)
{
qboolean ret;
if (host_time != next.time || next.op != VCR_OP_CANSENDMESSAGE || next.session != *(long *)(&sock->driverdata))
Sys_Error ("VCR missmatch");
Sys_FileRead(vcrFile, &ret, sizeof(int));
VCR_ReadNext ();
return ret;
}
void VCR_Close (qsocket_t *sock)
{
}
void VCR_SearchForHosts (qboolean xmit)
{
}
qsocket_t *VCR_Connect (char *host)
{
return NULL;
}
qsocket_t *VCR_CheckNewConnections (void)
{
qsocket_t *sock;
if (host_time != next.time || next.op != VCR_OP_CONNECT)
Sys_Error ("VCR missmatch");
if (!next.session)
{
VCR_ReadNext ();
return NULL;
}
sock = NET_NewQSocket ();
*(long *)(&sock->driverdata) = next.session;
Sys_FileRead (vcrFile, sock->address, NET_NAMELEN);
VCR_ReadNext ();
return sock;
}