Ejemplo n.º 1
0
/*
===================
SV_ExecuteClientMessage

Parse a client packet
===================
*/
void SV_ExecuteClientMessage( client_t *cl, msg_t *msg ) {
	int			c;
	int			serverId;

	MSG_Bitstream(msg);

	serverId = MSG_ReadLong( msg );
	cl->messageAcknowledge = MSG_ReadLong( msg );

	if (cl->messageAcknowledge < 0) {
		// usually only hackers create messages like this
		// it is more annoying for them to let them hanging
		//SV_DropClient( cl, "illegible client message" );
		return;
	}

	cl->reliableAcknowledge = MSG_ReadLong( msg );

	// NOTE: when the client message is fux0red the acknowledgement numbers
	// can be out of range, this could cause the server to send thousands of server
	// commands which the server thinks are not yet acknowledged in SV_UpdateServerCommandsToClient
	if (cl->reliableAcknowledge < cl->reliableSequence - MAX_RELIABLE_COMMANDS) {
		// usually only hackers create messages like this
		// it is more annoying for them to let them hanging
		//SV_DropClient( cl, "illegible client message" );
		cl->reliableAcknowledge = cl->reliableSequence;
		return;
	}
	// if this is a usercmd from a previous gamestate,
	// ignore it or retransmit the current gamestate
	// 
	// if the client was downloading, let it stay at whatever serverId and
	// gamestate it was at.  This allows it to keep downloading even when
	// the gamestate changes.  After the download is finished, we'll
	// notice and send it a new game state
	if ( serverId != sv.serverId && !*cl->downloadName ) {
		if ( serverId == sv.restartedServerId ) {
			// they just haven't caught the map_restart yet
			return;
		}
		// if we can tell that the client has dropped the last
		// gamestate we sent them, resend it
		if ( cl->messageAcknowledge > cl->gamestateMessageNum ) {
			Com_DPrintf( "%s : dropped gamestate, resending\n", cl->name );
			SV_SendClientGameState( cl );
		}
		return;
	}

	// read optional clientCommand strings
	do {
		c = MSG_ReadByte( msg );
		if ( c == clc_EOF ) {
			break;
		}
		if ( c != clc_clientCommand ) {
			break;
		}
		if ( !SV_ClientCommand( cl, msg ) ) {
			return;	// we couldn't execute it because of the flood protection
		}
		if (cl->state == CS_ZOMBIE) {
			return;	// disconnect command
		}
	} while ( 1 );

	// read the usercmd_t
	if ( c == clc_move ) {
		SV_UserMove( cl, msg, qtrue );
	} else if ( c == clc_moveNoDelta ) {
		SV_UserMove( cl, msg, qfalse );
	} else if ( c != clc_EOF ) {
		Com_Printf( "WARNING: bad command byte for client %i\n", cl - svs.clients );
	}
//	if ( msg->readcount != msg->cursize ) {
//		Com_Printf( "WARNING: Junk at end of packet for client %i\n", cl - svs.clients );
//	}
}
Ejemplo n.º 2
0
/*
===================
SV_ExecuteClientMessage

Parse a client packet
===================
*/
void SV_ExecuteClientMessage( client_t *cl, msg_t *msg )
{
	int c;
	int serverId;

	MSG_Bitstream( msg );

	serverId = MSG_ReadLong( msg );
	cl->messageAcknowledge = MSG_ReadLong( msg );

	if ( cl->messageAcknowledge < 0 )
	{
		// usually only hackers create messages like this
		// it is more annoying for them to let them hanging
#ifndef NDEBUG
		SV_DropClient( cl, "DEBUG: illegible client message" );
#endif
		return;
	}

	cl->reliableAcknowledge = MSG_ReadLong( msg );

	// NOTE: when the client message is fux0red the acknowledgement numbers
	// can be out of range, this could cause the server to send thousands of server
	// commands which the server thinks are not yet acknowledged in SV_UpdateServerCommandsToClient
	if ( cl->reliableAcknowledge < cl->reliableSequence - MAX_RELIABLE_COMMANDS )
	{
		// usually only hackers create messages like this
		// it is more annoying for them to let them hanging
#ifndef NDEBUG
		SV_DropClient( cl, "DEBUG: illegible client message" );
#endif
		cl->reliableAcknowledge = cl->reliableSequence;
		return;
	}

	// if this is a usercmd from a previous gamestate,
	// ignore it or retransmit the current gamestate
	//
	// if the client was downloading, let it stay at whatever serverId and
	// gamestate it was at.  This allows it to keep downloading even when
	// the gamestate changes.  After the download is finished, we'll
	// notice and send it a new game state
	//
	// show_bug.cgi?id=536
	// don't drop as long as previous command was a nextdl, after a dl is done, downloadName is set back to ""
	// but we still need to read the next message to move to next download or send gamestate
	// I don't like this hack though, it must have been working fine at some point, suspecting the fix is somewhere else
	if ( serverId != sv.serverId && !*cl->downloadName && !strstr( cl->lastClientCommandString, "nextdl" ) )
	{
		if ( serverId >= sv.restartedServerId && serverId < sv.serverId )
		{
			// TTimo - use a comparison here to catch multiple map_restart
			// they just haven't caught the map_restart yet
			Log::Debug( "%s^7: ignoring pre map_restart / outdated client message", cl->name );
			return;
		}

		// if we can tell that the client has dropped the last
		// gamestate we sent them, resend it
		if ( cl->messageAcknowledge > cl->gamestateMessageNum )
		{
			Log::Debug( "%s^7: dropped gamestate, resending", cl->name );
			SV_SendClientGameState( cl );
		}

		// read optional clientCommand strings
		do
		{
			c = MSG_ReadByte( msg );

			if ( c == clc_EOF )
			{
				break;
			}

			if ( c != clc_clientCommand )
			{
				break;
			}

			if ( !SV_ClientCommand( cl, msg, true ) )
			{
				return; // we couldn't execute it because of the flood protection
			}

			if ( cl->state == clientState_t::CS_ZOMBIE )
			{
				return; // disconnect command
			}
		}
		while ( 1 );

		return;
	}

	// read optional clientCommand strings
	do
	{
		c = MSG_ReadByte( msg );

		if ( c == clc_EOF )
		{
			break;
		}

		if ( c != clc_clientCommand )
		{
			break;
		}

		if ( !SV_ClientCommand( cl, msg, false ) )
		{
			return; // we couldn't execute it because of the flood protection
		}

		if ( cl->state == clientState_t::CS_ZOMBIE )
		{
			return; // disconnect command
		}
	}
	while ( 1 );

	// read the usercmd_t
	if ( c == clc_move )
	{
		SV_UserMove( cl, msg, true );
	}
	else if ( c == clc_moveNoDelta )
	{
		SV_UserMove( cl, msg, false );
	}
	else if ( c != clc_EOF )
	{
		Log::Warn( "bad command byte for client %i\n", ( int )( cl - svs.clients ) );
	}

	SV_ParseBinaryMessage( cl, msg );

//  if ( msg->readcount != msg->cursize ) {
//      Log::Notice( "WARNING: Junk at end of packet for client %i\n", cl - svs.clients );
//  }
}
Ejemplo n.º 3
0
/*
Start a server-side demo.

This does it all, create the file and adjust the demo-related
stuff in client_t.

This is mostly ripped from sv_client.c/SV_SendClientGameState
and cl_main.c/CL_Record_f.
*/
static void SVD_StartDemoFile(client_t *client, const char *path)
{
	int		i, len;
	entityState_t	*base, nullstate;
	msg_t		msg;
	byte		buffer[MAX_MSGLEN];
	fileHandle_t	file;
#ifdef USE_DEMO_FORMAT_42
	char		*s;
	int			v, size;
#endif

	Com_DPrintf("SVD_StartDemoFile\n");
	assert(!client->demo_recording);

	// create the demo file and write the necessary header
	file = FS_FOpenFileWrite(path);
	assert(file != 0);
	
	/* File_write_header_demo // ADD this fx */
	/* HOLBLIN  entete demo */ 
	#ifdef USE_DEMO_FORMAT_42
		//@Barbatos: get the mod version from the server
		s = Cvar_VariableString("g_modversion");
	
		size = strlen( s );
		len = LittleLong( size );
		FS_Write( &len, 4, file );
		FS_Write( s , size ,  file );
		
		v = LittleLong( PROTOCOL_VERSION );
		FS_Write ( &v, 4 , file );
		
		len = 0;
		len = LittleLong( len );
		FS_Write ( &len, 4 , file );
		FS_Write ( &len, 4 , file );
	#endif
	/* END HOLBLIN  entete demo */ 

	MSG_Init(&msg, buffer, sizeof(buffer));
	MSG_Bitstream(&msg); // XXX server code doesn't do this, client code does

	MSG_WriteLong(&msg, client->lastClientCommand); // TODO: or is it client->reliableSequence?

	MSG_WriteByte(&msg, svc_gamestate);
	MSG_WriteLong(&msg, client->reliableSequence);

	for (i = 0; i < MAX_CONFIGSTRINGS; i++) {
		if (sv.configstrings[i][0]) {
			MSG_WriteByte(&msg, svc_configstring);
			MSG_WriteShort(&msg, i);
			MSG_WriteBigString(&msg, sv.configstrings[i]);
		}
	}

	Com_Memset(&nullstate, 0, sizeof(nullstate));
	for (i = 0 ; i < MAX_GENTITIES; i++) {
		base = &sv.svEntities[i].baseline;
		if (!base->number) {
			continue;
		}
		MSG_WriteByte(&msg, svc_baseline);
		MSG_WriteDeltaEntity(&msg, &nullstate, base, qtrue);
	}

	MSG_WriteByte(&msg, svc_EOF);

	MSG_WriteLong(&msg, client - svs.clients);
	MSG_WriteLong(&msg, sv.checksumFeed);

	MSG_WriteByte(&msg, svc_EOF); // XXX server code doesn't do this, SV_Netchan_Transmit adds it!

	len = LittleLong(client->netchan.outgoingSequence-1);
	FS_Write(&len, 4, file);

	len = LittleLong (msg.cursize);
	FS_Write(&len, 4, file);
	FS_Write(msg.data, msg.cursize, file);

	#ifdef USE_DEMO_FORMAT_42
		// add size of packet in the end for backward play /* holblin */
		FS_Write(&len, 4, file);
	#endif

	FS_Flush(file);

	// adjust client_t to reflect demo started
	client->demo_recording = qtrue;
	client->demo_file = file;
	client->demo_waiting = qtrue;
	client->demo_backoff = 1;
	client->demo_deltas = 0;
}
Ejemplo n.º 4
0
/*
=====================
CL_ParseServerMessage
=====================
*/
void CL_ParseServerMessage( msg_t *msg ) {
	int			cmd;

	if ( cl_shownet->integer == 1 ) {
		Com_Printf ("%i ",msg->cursize);
	} else if ( cl_shownet->integer >= 2 ) {
		Com_Printf ("------------------\n");
	}

	MSG_Bitstream(msg);

	// get the reliable sequence acknowledge number
	clc.reliableAcknowledge = MSG_ReadLong( msg );
	// 
	if ( clc.reliableAcknowledge < clc.reliableSequence - MAX_RELIABLE_COMMANDS ) {
		clc.reliableAcknowledge = clc.reliableSequence;
	}

	//
	// parse the message
	//
	while ( 1 ) {
		if ( msg->readcount > msg->cursize ) {
			Com_Error (ERR_DROP,"CL_ParseServerMessage: read past end of server message");
			break;
		}

		cmd = MSG_ReadByte( msg );

		if (cmd == svc_EOF) {
			SHOWNET( msg, "END OF MESSAGE" );
			break;
		}

		if ( cl_shownet->integer >= 2 ) {
			if ( (cmd < 0) || (!svc_strings[cmd]) ) {
				Com_Printf( "%3i:BAD CMD %i\n", msg->readcount-1, cmd );
			} else {
				SHOWNET( msg, svc_strings[cmd] );
			}
		}
	
	// other commands
		switch ( cmd ) {
		default:
			Com_Error (ERR_DROP,"CL_ParseServerMessage: Illegible server message");
			break;			
		case svc_nop:
			break;
		case svc_serverCommand:
			CL_ParseCommandString( msg );
			break;
		case svc_gamestate:
			CL_ParseGamestate( msg );
			break;
		case svc_snapshot:
			CL_ParseSnapshot( msg );
			break;
		case svc_download:
			CL_ParseDownload( msg );
			break;
		case svc_voipSpeex:
#ifdef USE_VOIP
			CL_ParseVoip( msg, qtrue );
#endif
			break;
		case svc_voipOpus:
#ifdef USE_VOIP
			CL_ParseVoip( msg, !clc.voipEnabled );
#endif
			break;
		}
	}
}
Ejemplo n.º 5
0
/*
===================
CL_WritePacket

Create and send the command packet to the server
Including both the reliable commands and the usercmds

During normal gameplay, a client packet will contain something like:

4	sequence number
2	qport
4	serverid
4	acknowledged sequence number
4	clc.serverCommandSequence
<optional reliable commands>
1	clc_move or clc_moveNoDelta
1	command count
<count * usercmds>

===================
*/
void CL_WritePacket( void ) {
	msg_t		buf;
	byte		data[MAX_MSGLEN];
	int			i, j;
	usercmd_t	*cmd, *oldcmd;
	usercmd_t	nullcmd;
	int			packetNum;
	int			oldPacketNum;
	int			count, key;

	// don't send anything if playing back a demo
	if ( clc.demoplaying || cls.state == CA_CINEMATIC ) {
		return;
	}

	Com_Memset( &nullcmd, 0, sizeof(nullcmd) );
	oldcmd = &nullcmd;

	MSG_Init( &buf, data, sizeof(data) );

	MSG_Bitstream( &buf );
	// write the current serverId so the server
	// can tell if this is from the current gameState
	MSG_WriteLong( &buf, cl.serverId );

	// write the last message we received, which can
	// be used for delta compression, and is also used
	// to tell if we dropped a gamestate
	MSG_WriteLong( &buf, clc.serverMessageSequence );

	// write the last reliable message we received
	MSG_WriteLong( &buf, clc.serverCommandSequence );

	// write any unacknowledged clientCommands
	for ( i = clc.reliableAcknowledge + 1 ; i <= clc.reliableSequence ; i++ ) {
		MSG_WriteByte( &buf, clc_clientCommand );
		MSG_WriteLong( &buf, i );
		MSG_WriteString( &buf, clc.reliableCommands[ i & (MAX_RELIABLE_COMMANDS-1) ] );
	}

	// we want to send all the usercmds that were generated in the last
	// few packet, so even if a couple packets are dropped in a row,
	// all the cmds will make it to the server
	if ( cl_packetdup->integer < 0 ) {
		Cvar_Set( "cl_packetdup", "0" );
	} else if ( cl_packetdup->integer > 5 ) {
		Cvar_Set( "cl_packetdup", "5" );
	}
	oldPacketNum = (clc.netchan.outgoingSequence - 1 - cl_packetdup->integer) & PACKET_MASK;
	count = cl.cmdNumber - cl.outPackets[ oldPacketNum ].p_cmdNumber;
	if ( count > MAX_PACKET_USERCMDS ) {
		count = MAX_PACKET_USERCMDS;
		Com_Printf("MAX_PACKET_USERCMDS\n");
	}

#ifdef USE_VOIP
	if (clc.voipOutgoingDataSize > 0) {  // only send if data.
		// Move cl_voipSendTarget from a string to the bitmasks if needed.
		if (cl_voipSendTarget->modified) {
			char buffer[32];
			const char *target = cl_voipSendTarget->string;

			if (Q_stricmp(target, "attacker") == 0) {
				int player = VM_Call( cgvm, CG_LAST_ATTACKER );
				Com_sprintf(buffer, sizeof (buffer), "%d", player);
				target = buffer;
			} else if (Q_stricmp(target, "crosshair") == 0) {
				int player = VM_Call( cgvm, CG_CROSSHAIR_PLAYER );
				Com_sprintf(buffer, sizeof (buffer), "%d", player);
				target = buffer;
			}

			if ((*target == '\0') || (Q_stricmp(target, "all") == 0)) {
				const int all = 0x7FFFFFFF;
				clc.voipTarget1 = clc.voipTarget2 = clc.voipTarget3 = all;
			} else if (Q_stricmp(target, "none") == 0) {
				clc.voipTarget1 = clc.voipTarget2 = clc.voipTarget3 = 0;
			} else {
				const char *ptr = target;
				clc.voipTarget1 = clc.voipTarget2 = clc.voipTarget3 = 0;
				do {
					if ((*ptr == ',') || (*ptr == '\0')) {
						const int val = atoi(target);
						target = ptr + 1;
						if ((val >= 0) && (val < 31)) {
							clc.voipTarget1 |= (1 << (val-0));
						} else if ((val >= 31) && (val < 62)) {
							clc.voipTarget2 |= (1 << (val-31));
						} else if ((val >= 62) && (val < 93)) {
							clc.voipTarget3 |= (1 << (val-62));
						}
					}
				} while (*(ptr++));
			}
			cl_voipSendTarget->modified = qfalse;
		}

		MSG_WriteByte (&buf, clc_EOF);  // placate legacy servers.
		MSG_WriteByte (&buf, clc_extension);
		MSG_WriteByte (&buf, clc_voip);
		MSG_WriteByte (&buf, clc.voipOutgoingGeneration);
		MSG_WriteLong (&buf, clc.voipOutgoingSequence);
		MSG_WriteByte (&buf, clc.voipOutgoingDataFrames);
		MSG_WriteLong (&buf, clc.voipTarget1);
		MSG_WriteLong (&buf, clc.voipTarget2);
		MSG_WriteLong (&buf, clc.voipTarget3);
		MSG_WriteShort (&buf, clc.voipOutgoingDataSize);
		MSG_WriteData (&buf, clc.voipOutgoingData, clc.voipOutgoingDataSize);

		// If we're recording a demo, we have to fake a server packet with
		//  this VoIP data so it gets to disk; the server doesn't send it
		//  back to us, and we might as well eliminate concerns about dropped
		//  and misordered packets here.
		if ( clc.demorecording && !clc.demowaiting ) {
			const int voipSize = clc.voipOutgoingDataSize;
			msg_t fakemsg;
			byte fakedata[MAX_MSGLEN];
			MSG_Init (&fakemsg, fakedata, sizeof (fakedata));
			MSG_Bitstream (&fakemsg);
			MSG_WriteLong (&fakemsg, clc.reliableAcknowledge);
			MSG_WriteByte (&fakemsg, svc_EOF);
			MSG_WriteByte (&fakemsg, svc_extension);
			MSG_WriteByte (&fakemsg, svc_voip);
			MSG_WriteShort (&fakemsg, clc.clientNum);
			MSG_WriteByte (&fakemsg, clc.voipOutgoingGeneration);
			MSG_WriteLong (&fakemsg, clc.voipOutgoingSequence);
			MSG_WriteByte (&fakemsg, clc.voipOutgoingDataFrames);
			MSG_WriteShort (&fakemsg, clc.voipOutgoingDataSize );
			MSG_WriteData (&fakemsg, clc.voipOutgoingData, voipSize);
			MSG_WriteByte (&fakemsg, svc_EOF);
			CL_WriteDemoMessage (&fakemsg, 0);
		}

		clc.voipOutgoingSequence += clc.voipOutgoingDataFrames;
		clc.voipOutgoingDataSize = 0;
		clc.voipOutgoingDataFrames = 0;
	} else
#endif

	if ( count >= 1 ) {
		if ( cl_showSend->integer ) {
			Com_Printf( "(%i)", count );
		}

		// begin a client move command
		if ( cl_nodelta->integer || !cl.snap.valid || clc.demowaiting
			|| clc.serverMessageSequence != cl.snap.messageNum ) {
			MSG_WriteByte (&buf, clc_moveNoDelta);
		} else {
			MSG_WriteByte (&buf, clc_move);
		}

		// write the command count
		MSG_WriteByte( &buf, count );

		// use the checksum feed in the key
		key = clc.checksumFeed;
		// also use the message acknowledge
		key ^= clc.serverMessageSequence;
		// also use the last acknowledged server command in the key
		key ^= MSG_HashKey(clc.serverCommands[ clc.serverCommandSequence & (MAX_RELIABLE_COMMANDS-1) ], 32);

		// write all the commands, including the predicted command
		for ( i = 0 ; i < count ; i++ ) {
			j = (cl.cmdNumber - count + i + 1) & CMD_MASK;
			cmd = &cl.cmds[j];
			MSG_WriteDeltaUsercmdKey (&buf, key, oldcmd, cmd);
			oldcmd = cmd;
		}
	}

	//
	// deliver the message
	//
	packetNum = clc.netchan.outgoingSequence & PACKET_MASK;
	cl.outPackets[ packetNum ].p_realtime = cls.realtime;
	cl.outPackets[ packetNum ].p_serverTime = oldcmd->serverTime;
	cl.outPackets[ packetNum ].p_cmdNumber = cl.cmdNumber;
	clc.lastPacketSentTime = cls.realtime;

	if ( cl_showSend->integer ) {
		Com_Printf( "%i ", buf.cursize );
	}

	CL_Netchan_Transmit (&clc.netchan, &buf);	

	// clients never really should have messages large enough
	// to fragment, but in case they do, fire them all off
	// at once
	// TTimo: this causes a packet burst, which is bad karma for winsock
	// added a WARNING message, we'll see if there are legit situations where this happens
	while ( clc.netchan.unsentFragments ) {
		Com_DPrintf( "WARNING: #462 unsent fragments (not supposed to happen!)\n" );
		CL_Netchan_TransmitNextFragment( &clc.netchan );
	}
}
Ejemplo n.º 6
0
/*
===================
CL_WritePacket

Create and send the command packet to the server
Including both the reliable commands and the usercmds

A client packet will contain something like:

4 sequence number
2 qport
4 serverid
4 acknowledged sequence number
4 clc.serverCommandSequence
<optional reliable commands>
1 clc_move or clc_moveNoDelta
1 command count
<count * usercmds>

===================
*/
void CL_WritePacket()
{
	msg_t     buf;
	byte      data[ MAX_MSGLEN ];
	int       i, j;
	usercmd_t *cmd, *oldcmd;
	usercmd_t nullcmd;
	int       packetNum;
	int       oldPacketNum;
	int       count;

	// don't send anything if playing back a demo
	if ( clc.demoplaying || cls.state == CA_CINEMATIC )
	{
		return;
	}

	memset( &nullcmd, 0, sizeof( nullcmd ) );
	oldcmd = &nullcmd;

	MSG_Init( &buf, data, sizeof( data ) );

	MSG_Bitstream( &buf );
	// write the current serverId so the server
	// can tell if this is from the current gameState
	MSG_WriteLong( &buf, cl.serverId );

	// write the last message we received, which can
	// be used for delta compression, and is also used
	// to tell if we dropped a gamestate
	MSG_WriteLong( &buf, clc.serverMessageSequence );

	// write the last reliable message we received
	MSG_WriteLong( &buf, clc.serverCommandSequence );

	// write any unacknowledged clientCommands
	// NOTE TTimo: if you verbose this, you will see that there are quite a few duplicates
	// typically several unacknowledged cp or userinfo commands stacked up
	for ( i = clc.reliableAcknowledge + 1; i <= clc.reliableSequence; i++ )
	{
		MSG_WriteByte( &buf, clc_clientCommand );
		MSG_WriteLong( &buf, i );
		MSG_WriteString( &buf, clc.reliableCommands[ i & ( MAX_RELIABLE_COMMANDS - 1 ) ] );
	}

	// we want to send all the usercmds that were generated in the last
	// few packet, so even if a couple packets are dropped in a row,
	// all the cmds will make it to the server
	if ( cl_packetdup->integer < 0 )
	{
		Cvar_Set( "cl_packetdup", "0" );
	}
	else if ( cl_packetdup->integer > 5 )
	{
		Cvar_Set( "cl_packetdup", "5" );
	}

	oldPacketNum = ( clc.netchan.outgoingSequence - 1 - cl_packetdup->integer ) & PACKET_MASK;
	count = cl.cmdNumber - cl.outPackets[ oldPacketNum ].p_cmdNumber;

	if ( count > MAX_PACKET_USERCMDS )
	{
		count = MAX_PACKET_USERCMDS;
		Com_Printf( "MAX_PACKET_USERCMDS" );
	}

#ifdef USE_VOIP

	if ( clc.voipOutgoingDataSize > 0 )
	{
		if ( ( clc.voipFlags & VOIP_SPATIAL ) || Com_IsVoipTarget( clc.voipTargets, sizeof( clc.voipTargets ), -1 ) )
		{
			MSG_WriteByte( &buf, clc_voip );
			MSG_WriteByte( &buf, clc.voipOutgoingGeneration );
			MSG_WriteLong( &buf, clc.voipOutgoingSequence );
			MSG_WriteByte( &buf, clc.voipOutgoingDataFrames );
			MSG_WriteData( &buf, clc.voipTargets, sizeof( clc.voipTargets ) );
			MSG_WriteByte( &buf, clc.voipFlags );
			MSG_WriteShort( &buf, clc.voipOutgoingDataSize );
			MSG_WriteData( &buf, clc.voipOutgoingData, clc.voipOutgoingDataSize );

			// If we're recording a demo, we have to fake a server packet with
			//  this VoIP data so it gets to disk; the server doesn't send it
			//  back to us, and we might as well eliminate concerns about dropped
			//  and misordered packets here.
			if ( clc.demorecording && !clc.demowaiting )
			{
				const int voipSize = clc.voipOutgoingDataSize;
				msg_t     fakemsg;
				byte      fakedata[ MAX_MSGLEN ];
				MSG_Init( &fakemsg, fakedata, sizeof( fakedata ) );
				MSG_Bitstream( &fakemsg );
				MSG_WriteLong( &fakemsg, clc.reliableAcknowledge );
				MSG_WriteByte( &fakemsg, svc_voip );
				MSG_WriteShort( &fakemsg, clc.clientNum );
				MSG_WriteByte( &fakemsg, clc.voipOutgoingGeneration );
				MSG_WriteLong( &fakemsg, clc.voipOutgoingSequence );
				MSG_WriteByte( &fakemsg, clc.voipOutgoingDataFrames );
				MSG_WriteShort( &fakemsg, clc.voipOutgoingDataSize );
				MSG_WriteBits( &fakemsg, clc.voipFlags, VOIP_FLAGCNT );
				MSG_WriteData( &fakemsg, clc.voipOutgoingData, voipSize );
				MSG_WriteByte( &fakemsg, svc_EOF );
				CL_WriteDemoMessage( &fakemsg, 0 );
			}

			clc.voipOutgoingSequence += clc.voipOutgoingDataFrames;
			clc.voipOutgoingDataSize = 0;
			clc.voipOutgoingDataFrames = 0;
		}
		else
		{
			// We have data, but no targets. Silently discard all data
			clc.voipOutgoingDataSize = 0;
			clc.voipOutgoingDataFrames = 0;
		}
	}

#endif

	if ( count >= 1 )
	{
		if ( cl_showSend->integer )
		{
			Com_Printf( "(%i)", count );
		}

		// begin a client move command
		if ( cl_nodelta->integer || !cl.snap.valid || clc.demowaiting || clc.serverMessageSequence != cl.snap.messageNum )
		{
			MSG_WriteByte( &buf, clc_moveNoDelta );
		}
		else
		{
			MSG_WriteByte( &buf, clc_move );
		}

		// write the command count
		MSG_WriteByte( &buf, count );

		// write all the commands, including the predicted command
		for ( i = 0; i < count; i++ )
		{
			j = ( cl.cmdNumber - count + i + 1 ) & CMD_MASK;
			cmd = &cl.cmds[ j ];
			MSG_WriteDeltaUsercmd( &buf, oldcmd, cmd );
			oldcmd = cmd;
		}
	}

	//
	// deliver the message
	//
	packetNum = clc.netchan.outgoingSequence & PACKET_MASK;
	cl.outPackets[ packetNum ].p_realtime = cls.realtime;
	cl.outPackets[ packetNum ].p_serverTime = oldcmd->serverTime;
	cl.outPackets[ packetNum ].p_cmdNumber = cl.cmdNumber;
	clc.lastPacketSentTime = cls.realtime;

	if ( cl_showSend->integer )
	{
		Com_Printf("%i ", buf.cursize );
	}

	MSG_WriteByte( &buf, clc_EOF );
	CL_WriteBinaryMessage( &buf );
	Netchan_Transmit( &clc.netchan, buf.cursize, buf.data );

	// clients never really should have messages large enough
	// to fragment, but in case they do, fire them all off
	// at once
	// TTimo: this causes a packet burst, which is bad karma for winsock
	// added a WARNING message, we'll see if there are legit situations where this happens
	while ( clc.netchan.unsentFragments )
	{
		if ( cl_showSend->integer )
		{
			Com_Printf( "WARNING: unsent fragments (not supposed to happen!)" );
		}

		Netchan_TransmitNextFragment( &clc.netchan );
	}
}
Ejemplo n.º 7
0
/*
=====================
CL_ParseServerMessage
=====================
*/
void CL_ParseServerMessage(msg_t *msg)
{
	int cmd;

	if (cl_shownet->integer == 1)
	{
		Com_Printf("%i ", msg->cursize);
	}
	else if (cl_shownet->integer >= 2)
	{
		Com_Printf("------------------\n");
	}

	MSG_Bitstream(msg);

	// get the reliable sequence acknowledge number
	clc.reliableAcknowledge = MSG_ReadLong(msg);

	if (clc.reliableAcknowledge < clc.reliableSequence - MAX_RELIABLE_COMMANDS)
	{
		clc.reliableAcknowledge = clc.reliableSequence;
	}

	// parse the message
	while (1)
	{
		if (msg->readcount > msg->cursize)
		{
			Com_Error(ERR_DROP, "CL_ParseServerMessage: read past end of server message");
			break;
		}

		cmd = MSG_ReadByte(msg);

		if (cmd == svc_EOF)
		{
			SHOWNET(msg, "END OF MESSAGE");
			break;
		}

		if (cl_shownet->integer >= 2)
		{
			if (cmd < 0 || cmd > svc_EOF) // MSG_ReadByte might return -1 and we can't access our svc_strings array ...
			{
				Com_Printf("%3i:BAD BYTE %i\n", msg->readcount - 1, cmd); // -> ERR_DROP
			}
			else
			{
				if (!svc_strings[cmd])
				{
					Com_Printf("%3i:BAD CMD %i\n", msg->readcount - 1, cmd);
				}
				else
				{
					SHOWNET(msg, svc_strings[cmd]);
				}
			}
		}

		// other commands
		switch (cmd)
		{
		default:
			Com_Error(ERR_DROP, "CL_ParseServerMessage: Illegible server message %d", cmd);
			break;
		case svc_nop:
			break;
		case svc_serverCommand:
			CL_ParseCommandString(msg);
			break;
		case svc_gamestate:
			CL_ParseGamestate(msg);
			break;
		case svc_snapshot:
			CL_ParseSnapshot(msg);
			break;
		case svc_download:
			CL_ParseDownload(msg);
			break;
		}
	}

	CL_ParseBinaryMessage(msg);
}
Ejemplo n.º 8
0
/*
===================
CL_WritePacket

Create and send the command packet to the server
Including both the reliable commands and the usercmds

During normal gameplay, a client packet will contain something like:

4	sequence number
2	qport
4	serverid
4	acknowledged sequence number
4	clc.serverCommandSequence
<optional reliable commands>
1	clc_move or clc_moveNoDelta
1	command count
<count * usercmds>

===================
*/
void CL_WritePacket( void ) {
	msg_t		buf;
	byte		data[MAX_MSGLEN];
	int			i, j;
	usercmd_t	*cmd, *oldcmd;
	usercmd_t	nullcmd;
	int			packetNum;
	int			oldPacketNum;
	int			count, key;

	// don't send anything if playing back a demo
	if ( clc.demoplaying || cls.state == CA_CINEMATIC ) {
		return;
	}

	Com_Memset( &nullcmd, 0, sizeof(nullcmd) );
	oldcmd = &nullcmd;

	MSG_Init( &buf, data, sizeof(data) );

	MSG_Bitstream( &buf );
	// write the current serverId so the server
	// can tell if this is from the current gameState
	MSG_WriteLong( &buf, cl.serverId );

	// write the last message we received, which can
	// be used for delta compression, and is also used
	// to tell if we dropped a gamestate
	MSG_WriteLong( &buf, clc.serverMessageSequence );

	// write the last reliable message we received
	MSG_WriteLong( &buf, clc.serverCommandSequence );

	// write any unacknowledged clientCommands
	for ( i = clc.reliableAcknowledge + 1 ; i <= clc.reliableSequence ; i++ ) {
		MSG_WriteByte( &buf, clc_clientCommand );
		MSG_WriteLong( &buf, i );
		MSG_WriteString( &buf, clc.reliableCommands[ i & (MAX_RELIABLE_COMMANDS-1) ] );
	}

	// we want to send all the usercmds that were generated in the last
	// few packet, so even if a couple packets are dropped in a row,
	// all the cmds will make it to the server
	if ( cl_packetdup->integer < 0 ) {
		Cvar_Set( "cl_packetdup", "0" );
	} else if ( cl_packetdup->integer > 5 ) {
		Cvar_Set( "cl_packetdup", "5" );
	}
	oldPacketNum = (clc.netchan.outgoingSequence - 1 - cl_packetdup->integer) & PACKET_MASK;
	count = cl.cmdNumber - cl.outPackets[ oldPacketNum ].p_cmdNumber;
	if ( count > MAX_PACKET_USERCMDS ) {
		count = MAX_PACKET_USERCMDS;
		Com_Printf("MAX_PACKET_USERCMDS\n");
	}
	if ( count >= 1 ) {
		if ( cl_showSend->integer ) {
			Com_Printf( "(%i)", count );
		}

		// begin a client move command
		if ( cl_nodelta->integer || !cl.snap.valid
			|| clc.demowaiting
			|| clc.serverMessageSequence != cl.snap.messageNum ) {
			MSG_WriteByte (&buf, clc_moveNoDelta);
		} else {
			MSG_WriteByte (&buf, clc_move);
		}

		// write the command count
		MSG_WriteByte( &buf, count );

		// use the checksum feed in the key
		key = clc.checksumFeed;
		// also use the message acknowledge
		key ^= clc.serverMessageSequence;
		// also use the last acknowledged server command in the key
		key ^= Com_HashKey(clc.serverCommands[ clc.serverCommandSequence & (MAX_RELIABLE_COMMANDS-1) ], 32);

		// write all the commands, including the predicted command
		for ( i = 0 ; i < count ; i++ ) {
			j = (cl.cmdNumber - count + i + 1) & CMD_MASK;
			cmd = &cl.cmds[j];
			MSG_WriteDeltaUsercmdKey (&buf, key, oldcmd, cmd);
			oldcmd = cmd;
		}

		if (cl.gcmdSentValue)
		{ //hmm, just clear here, I guess.. hoping it will resolve issues with gencmd values sometimes not going through.
			cl.gcmdSendValue = qfalse;
			cl.gcmdSentValue = qfalse;
			cl.gcmdValue = 0;
		}
	}

	//
	// deliver the message
	//
	packetNum = clc.netchan.outgoingSequence & PACKET_MASK;
	cl.outPackets[ packetNum ].p_realtime = cls.realtime;
	cl.outPackets[ packetNum ].p_serverTime = oldcmd->serverTime;
	cl.outPackets[ packetNum ].p_cmdNumber = cl.cmdNumber;
	clc.lastPacketSentTime = cls.realtime;

	if ( cl_showSend->integer ) {
		Com_Printf( "%i ", buf.cursize );
	}

	CL_Netchan_Transmit (&clc.netchan, &buf);	

	// clients never really should have messages large enough
	// to fragment, but in case they do, fire them all off
	// at once
	while ( clc.netchan.unsentFragments ) {
		CL_Netchan_TransmitNextFragment( &clc.netchan );
	}
}
Ejemplo n.º 9
0
qboolean CL_PeekSnapshot(int snapshotNumber, snapshot_t *snapshot)
{
	clSnapshot_t *clSnap;
	clSnapshot_t csn;
	int          i, count;
	int          origPosition;
	int          cmd;
	//char         *s;
	char     buffer[16];
	qboolean success = qfalse;
	int      r;
	msg_t    buf;
	byte     bufData[MAX_MSGLEN];
	int      j;
	int      lastPacketTimeOrig;
	int      parseEntitiesNumOrig;
	int      currentSnapNum;
	//int      serverMessageSequence;

	clSnap = &csn;

	if (!clc.demoplaying)
	{
		return qfalse;
	}

	if (snapshotNumber <= cl.snap.messageNum)
	{
		success = CL_GetSnapshot(snapshotNumber, snapshot);
		if (!success)
		{
			Com_FuncPrinf("snapshot number outside of backup buffer\n");
			return qfalse;
		}
		return qtrue;
	}

	if (snapshotNumber > cl.snap.messageNum + 1)
	{
		Com_FuncPrinf("FIXME CL_PeekSnapshot  %d >  cl.snap.messageNum + 1 (%d)\n", snapshotNumber, cl.snap.messageNum);
		return qfalse; // FIXME:
	}

	parseEntitiesNumOrig = cl.parseEntitiesNum;
	lastPacketTimeOrig   = clc.lastPacketTime;
	// CL_ReadDemoMessage()
	origPosition = FS_FTell(clc.demofile);

	if (origPosition < 0)
	{
		// FS_FTell prints the warning ...
		return qfalse;
	}

	currentSnapNum = cl.snap.messageNum;

	for (j = 0; j < snapshotNumber - currentSnapNum; j++)
	{
		// get the sequence number
		memset(buffer, 0, sizeof(buffer));
		r = FS_Read(&buffer, 4, clc.demofile);
		if (r != 4)
		{
			Com_FuncPrinf("couldn't read sequence number\n");
			FS_Seek(clc.demofile, origPosition, FS_SEEK_SET);
			clc.lastPacketTime  = lastPacketTimeOrig;
			cl.parseEntitiesNum = parseEntitiesNumOrig;
			return qfalse;
		}
		//serverMessageSequence = LittleLong(*((int *)buffer));

		// init the message
		memset(&buf, 0, sizeof(msg_t));
		MSG_Init(&buf, bufData, sizeof(bufData));

		// get the length
		r = FS_Read(&buf.cursize, 4, clc.demofile);
		if (r != 4)
		{
			Com_FuncPrinf("couldn't get length\n");
			FS_Seek(clc.demofile, origPosition, FS_SEEK_SET);
			clc.lastPacketTime  = lastPacketTimeOrig;
			cl.parseEntitiesNum = parseEntitiesNumOrig;
			return qfalse;
		}

		buf.cursize = LittleLong(buf.cursize);
		if (buf.cursize == -1)
		{
			Com_FuncPrinf("buf.cursize == -1\n");
			FS_Seek(clc.demofile, origPosition, FS_SEEK_SET);
			clc.lastPacketTime  = lastPacketTimeOrig;
			cl.parseEntitiesNum = parseEntitiesNumOrig;
			return qfalse;
		}

		if (buf.cursize > buf.maxsize)
		{
			Com_FuncDrop("demoMsglen > MAX_MSGLEN");
			return qfalse;
		}

		r = FS_Read(buf.data, buf.cursize, clc.demofile);
		if (r != buf.cursize)
		{
			Com_FuncPrinf("Demo file was truncated.\n");
			FS_Seek(clc.demofile, origPosition, FS_SEEK_SET);
			clc.lastPacketTime  = lastPacketTimeOrig;
			cl.parseEntitiesNum = parseEntitiesNumOrig;
			return qfalse;
		}

		clc.lastPacketTime = cls.realtime;
		buf.readcount      = 0;

		MSG_Bitstream(&buf);
		// get the reliable sequence acknowledge number
		MSG_ReadLong(&buf);

		// parse the message
		while (qtrue)
		{
			if (buf.readcount > buf.cursize)
			{
				Com_FuncDrop("read past end of server message");
				return qfalse;
			}

			cmd = MSG_ReadByte(&buf);

			if (cmd == svc_EOF)
			{
				break;
			}
			success = qfalse;

			switch (cmd)
			{
			default:
				Com_FuncDrop("Illegible server message");
				return qfalse;
			case svc_nop:
				break;
			case svc_serverCommand:
				MSG_ReadLong(&buf);  // seq
				//s = MSG_ReadString(&buf);
				MSG_ReadString(&buf);
				break;
			case svc_gamestate:
				Com_FuncPrinf("FIXME gamestate\n");
				goto alldone;
				break;
			case svc_snapshot:
				// TODO: changed this check if it works
				CL_ParseSnapshot(&buf);
				if (cl.snap.valid)
				{
					success = qtrue;
				}
				break;
			case svc_download:
				Com_FuncPrinf("FIXME download\n");
				goto alldone;
				break;
			}
		}

alldone:

		if (!success)
		{
			Com_FuncPrinf("failed\n");
			FS_Seek(clc.demofile, origPosition, FS_SEEK_SET);
			clc.lastPacketTime  = lastPacketTimeOrig;
			cl.parseEntitiesNum = parseEntitiesNumOrig;
			return success;
		}

		// FIXME other ents not supported yet

		// if the entities in the frame have fallen out of their
		// circular buffer, we can't return it
		if (cl.parseEntitiesNum - clSnap->parseEntitiesNum >= MAX_PARSE_ENTITIES)
		{
			Com_FuncPrinf("cl.parseEntitiesNum - clSnap->parseEntitiesNum >= MAX_PARSE_ENTITIES");
			FS_Seek(clc.demofile, origPosition, FS_SEEK_SET);
			clc.lastPacketTime  = lastPacketTimeOrig;
			cl.parseEntitiesNum = parseEntitiesNumOrig;
			return qtrue;  // FIXME if you fix other ents
		}

		// write the snapshot
		snapshot->snapFlags             = clSnap->snapFlags;
		snapshot->serverCommandSequence = clSnap->serverCommandNum;
		snapshot->ping                  = clSnap->ping;
		snapshot->serverTime            = clSnap->serverTime;
		Com_Memcpy(snapshot->areamask, clSnap->areamask, sizeof(snapshot->areamask));
		snapshot->ps = clSnap->ps;
		count        = clSnap->numEntities;

		if (count > MAX_ENTITIES_IN_SNAPSHOT)
		{
			Com_FuncPrinf("truncated %i entities to %i\n", count, MAX_ENTITIES_IN_SNAPSHOT);
			count = MAX_ENTITIES_IN_SNAPSHOT;
		}

		snapshot->numEntities = count;
		for (i = 0; i < count; i++)
		{
			snapshot->entities[i] = cl.parseEntities[(clSnap->parseEntitiesNum + i) & (MAX_PARSE_ENTITIES - 1)];
		}
	}

	FS_Seek(clc.demofile, origPosition, FS_SEEK_SET);
	clc.lastPacketTime  = lastPacketTimeOrig;
	cl.parseEntitiesNum = parseEntitiesNumOrig;
	// TODO: configstring changes and server commands!!!

	return qtrue;
}
Ejemplo n.º 10
0
// Do very shallow parse of the demo (could be extended) just to get times and snapshot count
static void CL_ParseDemo(void)
{
	int tstart   = 0;
	int demofile = 0;

	// Reset our demo data
	memset(&di, 0, sizeof(di));

	// Parse start
	di.gameStartTime = -1;
	di.gameEndTime   = -1;
	FS_Seek(clc.demofile, 0, FS_SEEK_SET);
	tstart = Sys_Milliseconds();

	while (qtrue)
	{
		int   r;
		msg_t buf;
		msg_t *msg;
		byte  bufData[MAX_MSGLEN];
		int   s;
		int   cmd;

		di.demoPos = FS_FTell(clc.demofile);

		// get the sequence number
		r = FS_Read(&s, 4, clc.demofile);
		if (r != 4)
		{
			CL_DemoCompleted();
			return;
		}

		clc.serverMessageSequence = LittleLong(s);

		// init the message
		MSG_Init(&buf, bufData, sizeof(bufData));

		// get the length
		r = FS_Read(&buf.cursize, 4, clc.demofile);

		if (r != 4)
		{
			break;
		}

		buf.cursize = LittleLong(buf.cursize);
		if (buf.cursize == -1)
		{
			break;
		}

		if (buf.cursize > buf.maxsize)
		{
			Com_FuncPrinf("demoMsglen > MAX_MSGLEN");
			break;
		}

		r = FS_Read(buf.data, buf.cursize, clc.demofile);
		if (r != buf.cursize)
		{
			Com_FuncPrinf("Demo file was truncated.\n");
			break;
		}

		clc.lastPacketTime = cls.realtime;
		buf.readcount      = 0;

		// parse
		msg = &buf;
		MSG_Bitstream(msg);

		// get the reliable sequence acknowledge number
		clc.reliableAcknowledge = MSG_ReadLong(msg);

		if (clc.reliableAcknowledge < clc.reliableSequence - MAX_RELIABLE_COMMANDS)
		{
			clc.reliableAcknowledge = clc.reliableSequence;
		}

		// parse the message
		while (qtrue)
		{
			if (msg->readcount > msg->cursize)
			{
				Com_FuncDrop("read past end of server message");
				return;
			}

			cmd = MSG_ReadByte(msg);

			if (cmd == svc_EOF)
			{
				break;
			}

			// other commands
			switch (cmd)
			{
			default:
				Com_FuncDrop("Illegible server message %d", cmd);
				return;
			case svc_nop:
				break;
			case svc_serverCommand:
				MSG_ReadLong(msg);
				MSG_ReadString(msg);
				break;
			case svc_gamestate:
				clc.serverCommandSequence = MSG_ReadLong(msg);
				cl.gameState.dataCount    = 1;
				while (qtrue)
				{
					int cmd2 = MSG_ReadByte(msg);
					if (cmd2 == svc_EOF)
					{
						break;
					}
					if (cmd2 == svc_configstring)
					{
						MSG_ReadShort(msg);
						MSG_ReadBigString(msg);
					}
					else if (cmd2 == svc_baseline)
					{
						entityState_t s1, s2;
						memset(&s1, 0, sizeof(s1));
						memset(&s2, 0, sizeof(s2));
						MSG_ReadBits(msg, GENTITYNUM_BITS);
						MSG_ReadDeltaEntity(msg, &s1, &s2, 0);
					}
					else
					{
						Com_FuncDrop("bad command byte");
						return;
					}
				}
				MSG_ReadLong(msg);
				MSG_ReadLong(msg);
				break;
			case svc_snapshot:
				CL_ParseDemoSnapShotSimple(msg);
				break;
			case svc_download:
				MSG_ReadShort(msg);

				break;
			}
		}

		if (!cl.snap.valid)
		{
			Com_FuncPrinf("!cl.snap.valid\n");
			continue;
		}

		if (cl.snap.serverTime < cl.oldFrameServerTime)
		{
			// ignore snapshots that don't have entities
			if (cl.snap.snapFlags & SNAPFLAG_NOT_ACTIVE)
			{
				continue;
			}
			cls.state = CA_ACTIVE;

			// set the timedelta so we are exactly on this first frame
			cl.serverTimeDelta = cl.snap.serverTime - cls.realtime;
			cl.oldServerTime   = cl.snap.serverTime;

			clc.timeDemoBaseTime = cl.snap.serverTime;
		}
		cl.oldFrameServerTime = cl.snap.serverTime;

		if (cl.newSnapshots)
		{
			CL_AdjustTimeDelta();
		}

		di.lastServerTime = cl.snap.serverTime;
		if (di.firstServerTime == 0)
		{
			di.firstServerTime = cl.snap.serverTime;
			Com_FuncPrinf("firstServerTime %d\n", di.firstServerTime);
		}

		di.snapsInDemo++;
	}

	Com_FuncPrinf("Snaps in demo: %i\n", di.snapsInDemo);
	Com_FuncPrinf("last serverTime %d   total %f minutes\n", cl.snap.serverTime, (cl.snap.serverTime - di.firstServerTime) / 1000.0 / 60.0);
	Com_FuncPrinf("parse time %f seconds\n", (float)(Sys_Milliseconds() - tstart) / 1000.0);
	FS_Seek(clc.demofile, 0, FS_SEEK_SET);
	clc.demoplaying = qfalse;
	demofile        = clc.demofile;
	CL_ClearState();
	Com_Memset(&clc, 0, sizeof(clc));
	Com_ClearDownload();
	clc.demofile             = demofile;
	cls.state                = CA_DISCONNECTED;
	cl_connectedToPureServer = qfalse;

	dpi.firstTime = di.firstServerTime;
	dpi.lastTime  = di.lastServerTime;
}
Ejemplo n.º 11
0
void CL_Record(const char *name)
{
	int           i;
	msg_t         buf;
	byte          bufData[MAX_MSGLEN];
	entityState_t *ent;
	entityState_t nullstate;
	char          *s;
	int           len;

	// open the demo file
	Com_FuncPrinf("Recording to %s.\n", name);
	clc.demofile = FS_FOpenFileWrite(name);
	if (!clc.demofile)
	{
		Com_FuncPrinf("ERROR: couldn't open.\n");
		return;
	}

	clc.demorecording = qtrue;
	Cvar_Set("cl_demorecording", "1");    // fretn
	Q_strncpyz(clc.demoName, demoName, sizeof(clc.demoName));
	Cvar_Set("cl_demofilename", clc.demoName);    // bani
	Cvar_Set("cl_demooffset", "0");    // bani

	// don't start saving messages until a non-delta compressed message is received
	clc.demowaiting = qtrue;

	// write out the gamestate message
	MSG_Init(&buf, bufData, sizeof(bufData));
	MSG_Bitstream(&buf);

	// NOTE: all server->client messages now acknowledge
	MSG_WriteLong(&buf, clc.reliableSequence);

	MSG_WriteByte(&buf, svc_gamestate);
	MSG_WriteLong(&buf, clc.serverCommandSequence);

	// configstrings
	for (i = 0; i < MAX_CONFIGSTRINGS; i++)
	{
		if (!cl.gameState.stringOffsets[i])
		{
			continue;
		}
		s = cl.gameState.stringData + cl.gameState.stringOffsets[i];
		MSG_WriteByte(&buf, svc_configstring);
		MSG_WriteShort(&buf, i);
		MSG_WriteBigString(&buf, s);
	}

	// baselines
	memset(&nullstate, 0, sizeof(nullstate));
	for (i = 0; i < MAX_GENTITIES; i++)
	{
		ent = &cl.entityBaselines[i];
		if (!ent->number)
		{
			continue;
		}
		MSG_WriteByte(&buf, svc_baseline);
		MSG_WriteDeltaEntity(&buf, &nullstate, ent, qtrue);
	}

	MSG_WriteByte(&buf, svc_EOF);

	// finished writing the gamestate stuff

	// write the client num
	MSG_WriteLong(&buf, clc.clientNum);
	// write the checksum feed
	MSG_WriteLong(&buf, clc.checksumFeed);

	// finished writing the client packet
	MSG_WriteByte(&buf, svc_EOF);

	// write it to the demo file
	len = LittleLong(clc.serverMessageSequence - 1);
	FS_Write(&len, 4, clc.demofile);

	len = LittleLong(buf.cursize);
	FS_Write(&len, 4, clc.demofile);
	FS_Write(buf.data, buf.cursize, clc.demofile);

	// the rest of the demo file will be copied from net messages
}
Ejemplo n.º 12
0
void demoConvert( const char *oldName, const char *newBaseName, qboolean smoothen ) {
	fileHandle_t	oldHandle = 0;
	fileHandle_t	newHandle = 0;
	int				temp;
	int				oldSize;
	int				msgSequence;
	msg_t			oldMsg;
	byte			oldData[ MAX_MSGLEN ];
	int				oldTime, nextTime, fullTime;
	int				clientNum;
	demoFrame_t		*workFrame;
	int				parseEntitiesNum = 0;
	demoConvert_t	*convert;
	char			bigConfigString[BIG_INFO_STRING];
	int				bigConfigNumber;
	const char		*s;
	clSnapshot_t	*oldSnap = 0;
	clSnapshot_t	*newSnap;
	int				levelCount = 0;
	char			newName[MAX_OSPATH];

	oldSize = FS_FOpenFileRead( oldName, &oldHandle, qtrue );
	if (!oldHandle) {
		Com_Printf("Failed to open %s for conversion.", oldName);
		return;
	}
	/* Alloc some memory */
	convert = Z_Malloc( sizeof( demoConvert_t) );
	/* Initialize the first workframe's strings */
	while (oldSize > 0) {
		MSG_Init( &oldMsg, oldData, sizeof( oldData ) );
		/* Read the sequence number */
		if (FS_Read( &convert->messageNum, 4, oldHandle) != 4)
			goto conversionerror;
		convert->messageNum = LittleLong( convert->messageNum );
		oldSize -= 4;
		/* Read the message size */
		if (FS_Read( &oldMsg.cursize,4, oldHandle) != 4)
			goto conversionerror;
		oldSize -= 4;
		oldMsg.cursize = LittleLong( oldMsg.cursize );
		/* Negative size signals end of demo */
		if (oldMsg.cursize < 0)
			break;
		if ( oldMsg.cursize > oldMsg.maxsize ) 
			goto conversionerror;
		/* Read the actual message */
		if (FS_Read( oldMsg.data, oldMsg.cursize, oldHandle ) != oldMsg.cursize)
			goto conversionerror;
		oldSize -= oldMsg.cursize;
		// init the bitstream
		MSG_BeginReading( &oldMsg );
		// Skip the reliable sequence acknowledge number
		MSG_ReadLong( &oldMsg );
		//
		// parse the message
		//
		while ( 1 ) {
			byte cmd;
			if ( oldMsg.readcount > oldMsg.cursize ) {
				Com_Printf ("Demo conversion, read past end of server message.\n");
				goto conversionerror;
			}
            cmd = MSG_ReadByte( &oldMsg );
			if ( cmd == svc_EOF) {
                break;
			}
			workFrame = &convert->frames[ convert->frameIndex % DEMOCONVERTFRAMES ];
			// other commands
			switch ( cmd ) {
			default:
				Com_Error (ERR_DROP,"CL_ParseServerMessage: Illegible server message\n");
				break;			
			case svc_nop:
				break;
			case svc_serverCommand:
				temp = MSG_ReadLong( &oldMsg );
				s = MSG_ReadString( &oldMsg );
				if (temp<=msgSequence)
					break;
//				Com_Printf( " server command %s\n", s );
				msgSequence = temp;
				Cmd_TokenizeString( s );
	
				if ( !Q_stricmp( Cmd_Argv(0), "bcs0" ) ) {
					bigConfigNumber = atoi( Cmd_Argv(1) );
					Q_strncpyz( bigConfigString, Cmd_Argv(2), sizeof( bigConfigString ));
					break;
				}
				if ( !Q_stricmp( Cmd_Argv(0), "bcs1" ) ) {
					Q_strcat( bigConfigString, sizeof( bigConfigString ), Cmd_Argv(2));
					break;
				}
				if ( !Q_stricmp( Cmd_Argv(0), "bcs2" ) ) {
					Q_strcat( bigConfigString, sizeof( bigConfigString ), Cmd_Argv(2));
					demoFrameAddString( &workFrame->string, bigConfigNumber, bigConfigString );
					break;
				}
				if ( !Q_stricmp( Cmd_Argv(0), "cs" ) ) {
					int num = atoi( Cmd_Argv(1) );
					s = Cmd_ArgsFrom( 2 );
					demoFrameAddString( &workFrame->string, num, Cmd_ArgsFrom( 2 ) );
					break;
				}
				if ( clientNum >= 0 && clientNum < MAX_CLIENTS ) {
					int len = strlen( s ) + 1;
					char *dst;
					if (workFrame->commandUsed + len + 1 > sizeof( workFrame->commandData)) {
						Com_Printf("Overflowed state command data.\n");
						goto conversionerror;
					}
					dst = workFrame->commandData + workFrame->commandUsed;
					*dst = clientNum;
					Com_Memcpy( dst+1, s, len );
					workFrame->commandUsed += len + 1;
				}
				break;
			case svc_gamestate:
				if (newHandle) {
					FS_FCloseFile( newHandle );
					newHandle = 0;
				}
				if (levelCount) {
					Com_sprintf( newName, sizeof( newName ), "%s.%d.mme", newBaseName, levelCount );
				} else {
					Com_sprintf( newName, sizeof( newName ), "%s.mme", newBaseName );
				}
				fullTime = -1;
				clientNum = -1;
				oldTime = -1;
				Com_Memset( convert, 0, sizeof( *convert ));
				convert->frames[0].string.used = 1;
				levelCount++;
				newHandle = FS_FOpenFileWrite( newName );
				if (!newHandle) {
					Com_Printf("Failed to open %s for target conversion target.\n", newName);
					goto conversionerror;
					return;
				} else {
					FS_Write ( demoHeader, strlen( demoHeader ), newHandle );
				}
				Com_sprintf( newName, sizeof( newName ), "%s.txt", newBaseName );
				workFrame = &convert->frames[ convert->frameIndex % DEMOCONVERTFRAMES ];
				msgSequence = MSG_ReadLong( &oldMsg );
				while( 1 ) {
					cmd = MSG_ReadByte( &oldMsg );
					if (cmd == svc_EOF)
						break;
					if ( cmd == svc_configstring) {
						int		num;
						const char *s;
						num = MSG_ReadShort( &oldMsg );
						s = MSG_ReadBigString( &oldMsg );
						demoFrameAddString( &workFrame->string, num, s );
					} else if ( cmd == svc_baseline ) {
						int num = MSG_ReadBits( &oldMsg, GENTITYNUM_BITS );
						if ( num < 0 || num >= MAX_GENTITIES ) {
							Com_Printf( "Baseline number out of range: %i.\n", num );
							goto conversionerror;
						}
						MSG_ReadDeltaEntity( &oldMsg, &demoNullEntityState, &convert->entityBaselines[num], num );
					} else {
						Com_Printf( "Unknown block while converting demo gamestate.\n" );
						goto conversionerror;
					}
				}
				clientNum = MSG_ReadLong( &oldMsg );
				/* Skip the checksum feed */
				MSG_ReadLong( &oldMsg );
				break;
			case svc_snapshot:
				nextTime = MSG_ReadLong( &oldMsg );
				/* Delta number, not needed */
				newSnap = &convert->snapshots[convert->messageNum & PACKET_MASK];
				Com_Memset (newSnap, 0, sizeof(*newSnap));
				newSnap->deltaNum = MSG_ReadByte( &oldMsg );
				newSnap->messageNum = convert->messageNum;
				if (!newSnap->deltaNum) {
					newSnap->deltaNum = -1;
					newSnap->valid = qtrue;		// uncompressed frame
					oldSnap  = NULL;
				} else {
					newSnap->deltaNum = newSnap->messageNum - newSnap->deltaNum;
					oldSnap = &convert->snapshots[newSnap->deltaNum & PACKET_MASK];
					if (!oldSnap->valid) {
						Com_Printf( "Delta snapshot without base.\n" );
						goto conversionerror;
					} else if (oldSnap->messageNum != newSnap->deltaNum) {
						// The frame that the server did the delta from
						// is too old, so we can't reconstruct it properly.
						Com_Printf ("Delta frame too old.\n");
					} else if ( parseEntitiesNum - oldSnap->parseEntitiesNum > MAX_PARSE_ENTITIES-128 ) {
						Com_Printf ("Delta parseEntitiesNum too old.\n");
					} else {
						newSnap->valid = qtrue;	// valid delta parse
					}
				}

				/* Snapflags, not needed */
				newSnap->snapFlags = MSG_ReadByte( &oldMsg );
				// read areamask
				workFrame->areaUsed = MSG_ReadByte( &oldMsg );
				MSG_ReadData( &oldMsg, workFrame->areamask, workFrame->areaUsed );
				if (clientNum <0 || clientNum >= MAX_CLIENTS) {
					Com_Printf("Got snapshot with invalid client.\n");
					goto conversionerror;
				}
				MSG_ReadDeltaPlayerstate( &oldMsg, oldSnap ? &oldSnap->ps : &demoNullPlayerState, &newSnap->ps );
				/* Read the individual entities */
				newSnap->parseEntitiesNum = parseEntitiesNum;
				newSnap->numEntities = 0;
				Com_Memset( workFrame->entityData, 0, sizeof( workFrame->entityData ));

				/* The beast that is entity parsing */
				{
				int			newnum;
				entityState_t	*oldstate, *newstate;
				int			oldindex = 0;
				int			oldnum;
				newnum = MSG_ReadBits( &oldMsg, GENTITYNUM_BITS );
				while ( 1 ) {
					// read the entity index number
					if (oldSnap && oldindex < oldSnap->numEntities) {
						oldstate = &convert->parseEntities[(oldSnap->parseEntitiesNum + oldindex) & (MAX_PARSE_ENTITIES-1)];
						oldnum = oldstate->number;
					} else {
						oldstate = 0;
						oldnum = 99999;
					}
					newstate = &convert->parseEntities[parseEntitiesNum];
					if ( !oldstate && (newnum == (MAX_GENTITIES-1))) {
						break;
					} else if ( oldnum < newnum ) {
						*newstate = *oldstate;
						oldindex++;
					} else if (oldnum == newnum) {
						oldindex++;
						MSG_ReadDeltaEntity( &oldMsg, oldstate, newstate, newnum );
						if ( newstate->number != MAX_GENTITIES-1)
							workFrame->entityData[ newstate->number ] = 1;
						newnum = MSG_ReadBits( &oldMsg, GENTITYNUM_BITS );
					} else if (oldnum > newnum) {
						MSG_ReadDeltaEntity( &oldMsg, &convert->entityBaselines[newnum], newstate , newnum );
						if ( newstate->number != MAX_GENTITIES-1)
							workFrame->entityData[ newstate->number ] = 1;
						newnum = MSG_ReadBits( &oldMsg, GENTITYNUM_BITS );
					}
					if (newstate->number == MAX_GENTITIES-1)
						continue;
					parseEntitiesNum++;
					parseEntitiesNum &= (MAX_PARSE_ENTITIES-1);
					newSnap->numEntities++;
				}}
				/* Stop processing this further since it's an invalid snap due to lack of delta data */
				if (!newSnap->valid)
					break;

				/* Skipped snapshots will be set invalid in the circular buffer */
				if ( newSnap->messageNum - convert->lastMessageNum >= PACKET_BACKUP ) {
					convert->lastMessageNum = newSnap->messageNum - ( PACKET_BACKUP - 1 );
				}
				for ( ; convert->lastMessageNum < newSnap->messageNum ; convert->lastMessageNum++ ) {
					convert->snapshots[convert->lastMessageNum & PACKET_MASK].valid = qfalse;
				}
				convert->lastMessageNum = newSnap->messageNum + 1;

				/* compress the frame into the new format */
				if (nextTime > oldTime) {
					demoFrame_t *cleanFrame;
					int writeIndex;
					for (temp = 0;temp<newSnap->numEntities;temp++) {
						int p = (newSnap->parseEntitiesNum+temp) & (MAX_PARSE_ENTITIES-1);
						entityState_t *newState = &convert->parseEntities[p];
						workFrame->entities[newState->number] = *newState;
					}
					workFrame->clientData[clientNum] = 1;
					workFrame->clients[clientNum] = newSnap->ps;
					workFrame->serverTime = nextTime;

					/* Which frame from the cache to save */
					writeIndex = convert->frameIndex - (DEMOCONVERTFRAMES/2);
					if (writeIndex >= 0) {
						const demoFrame_t *newFrame;
						msg_t writeMsg;
						// init the message
						MSG_Init( &writeMsg, demoBuffer, sizeof (demoBuffer));
						MSG_Clear( &writeMsg );
						MSG_Bitstream( &writeMsg );
						newFrame = &convert->frames[ writeIndex  % DEMOCONVERTFRAMES];
						if ( smoothen )
							demoFrameInterpolate( convert->frames, DEMOCONVERTFRAMES, writeIndex );
						if ( nextTime > fullTime || writeIndex <= 0 ) {
							/* Plan the next time for a full write */
							fullTime = nextTime + 2000;
							demoFramePack( &writeMsg, newFrame, 0 );
						} else {
							const demoFrame_t *oldFrame = &convert->frames[ ( writeIndex -1 ) % DEMOCONVERTFRAMES];
							demoFramePack( &writeMsg, newFrame, oldFrame );
						}
						/* Write away the new data in the msg queue */
						temp = LittleLong( writeMsg.cursize );
						FS_Write (&temp, 4, newHandle );
						FS_Write ( writeMsg.data , writeMsg.cursize, newHandle );
					}

					/* Clean up the upcoming frame for all new changes */
					convert->frameIndex++;
					cleanFrame = &convert->frames[ convert->frameIndex % DEMOCONVERTFRAMES];
					cleanFrame->serverTime = 0;
					for (temp = 0;temp<MAX_GENTITIES;temp++)
						cleanFrame->entities[temp].number = MAX_GENTITIES-1;
					Com_Memset( cleanFrame->clientData, 0, sizeof ( cleanFrame->clientData ));
					Com_Memcpy( cleanFrame->string.data, workFrame->string.data, workFrame->string.used );
					Com_Memcpy( cleanFrame->string.offsets, workFrame->string.offsets, sizeof( workFrame->string.offsets ));
					cleanFrame->string.used = workFrame->string.used;
					cleanFrame->commandUsed = 0;
					/* keep track of this last frame's time */
					oldTime = nextTime;
				}
				break;
			case svc_download:
				// read block number
				temp = MSG_ReadShort ( &oldMsg );
				if (!temp)	//0 block, read file size
					MSG_ReadLong( &oldMsg );
				// read block size
				temp = MSG_ReadShort ( &oldMsg );
				// read the data block
				for ( ;temp>0;temp--)
					MSG_ReadByte( &oldMsg );
				break;
			}
		}
	}
conversionerror:
	FS_FCloseFile( oldHandle );
	FS_FCloseFile( newHandle );
	Z_Free( convert );
	return;
}
Ejemplo n.º 13
0
/*
=====================
CL_ParseServerMessage
=====================
*/
void CL_ParseServerMessage( msg_t *msg ) {
	int			cmd;

	if ( cl_shownet->integer == 1 ) {
		Com_Printf ("%i ",msg->cursize);
	} else if ( cl_shownet->integer >= 2 ) {
		Com_Printf ("------------------\n");
	}

	MSG_Bitstream(msg);

	// get the reliable sequence acknowledge number
	clc.reliableAcknowledge = MSG_ReadLong( msg );
	// 
	if ( clc.reliableAcknowledge < clc.reliableSequence - MAX_RELIABLE_COMMANDS ) {
		clc.reliableAcknowledge = clc.reliableSequence;
	}

	//
	// parse the message
	//
	while ( 1 ) {
		if ( msg->readcount > msg->cursize ) {
			Com_Error (ERR_DROP,"CL_ParseServerMessage: read past end of server message");
			break;
		}

		cmd = MSG_ReadByte( msg );

		if ( cmd == svc_EOF) {
			SHOWNET( msg, "END OF MESSAGE" );
			break;
		}

		if ( cl_shownet->integer >= 2 ) {
			if ( !svc_strings[cmd] ) {
				Com_Printf( "%3i:BAD CMD %i\n", msg->readcount-1, cmd );
			} else {
				SHOWNET( msg, svc_strings[cmd] );
			}
		}
	
	// other commands
		switch ( cmd ) {
		default:
			Com_Error (ERR_DROP,"CL_ParseServerMessage: Illegible server message\n");
			break;			
		case svc_nop:
			break;
		case svc_serverCommand:
			CL_ParseCommandString( msg );
			break;
		case svc_gamestate:
			CL_ParseGamestate( msg );
			break;
		case svc_snapshot:
			CL_ParseSnapshot( msg );
			break;
		case svc_download:
			CL_ParseDownload( msg );
			break;
		case svc_lua:
			//Make Lua VMCall Here. -Hxrmn
			CL_SetLuaMessage(msg);
			VM_Call (cgvm, CG_LUA_MSG);
			break;
		}
	}
}
Ejemplo n.º 14
0
/*
=====================
CL_ParseServerMessage
=====================
*/
void CL_ParseServerMessage( msg_t *msg )
{
	int cmd;
//	msg_t           msgback;

//	msgback = *msg;

	if ( cl_shownet->integer == 1 )
	{
		Com_Printf("%i ", msg->cursize );
	}
	else if ( cl_shownet->integer >= 2 )
	{
		Com_Printf( "------------------\n" );
	}

	MSG_Bitstream( msg );

	// get the reliable sequence acknowledge number
	clc.reliableAcknowledge = MSG_ReadLong( msg );

	//
	if ( clc.reliableAcknowledge < clc.reliableSequence - MAX_RELIABLE_COMMANDS )
	{
		clc.reliableAcknowledge = clc.reliableSequence;
	}

	//
	// parse the message
	//
	while ( 1 )
	{
		if ( msg->readcount > msg->cursize )
		{
			Com_Error( ERR_DROP, "CL_ParseServerMessage: read past end of server message" );
		}

		cmd = MSG_ReadByte( msg );

		// See if this is an extension command after the EOF, which means we
		//  got data that a legacy client should ignore.
		if ( ( cmd == svc_EOF ) && ( MSG_LookaheadByte( msg ) == svc_extension ) )
		{
			SHOWNET( msg, "EXTENSION" );
			MSG_ReadByte( msg );  // throw the svc_extension byte away.
			cmd = MSG_ReadByte( msg );  // something legacy clients can't do!

			// sometimes you get a svc_extension at end of stream...dangling
			//  bits in the huffman decoder giving a bogus value?
			if ( cmd == -1 )
			{
				cmd = svc_EOF;
			}
		}

		if ( cmd == svc_EOF )
		{
			SHOWNET( msg, "END OF MESSAGE" );
			break;
		}

		if ( cl_shownet->integer >= 2 )
		{
			if ( !svc_strings[ cmd ] )
			{
				Com_Printf( "%3i:BAD CMD %i\n", msg->readcount - 1, cmd );
			}
			else
			{
				SHOWNET( msg, svc_strings[ cmd ] );
			}
		}

		// other commands
		switch ( cmd )
		{
			default:
				Com_Error( ERR_DROP, "CL_ParseServerMessage: Illegible server message %d", cmd );

			case svc_nop:
				break;

			case svc_serverCommand:
				CL_ParseCommandString( msg );
				break;

			case svc_gamestate:
				CL_ParseGamestate( msg );
				break;

			case svc_snapshot:
				CL_ParseSnapshot( msg );
				break;

			case svc_download:
				CL_ParseDownload( msg );
				break;

			case svc_voip:
#ifdef USE_VOIP
				CL_ParseVoip( msg );
#endif
				break;
		}
	}

}
Ejemplo n.º 15
0
void demoCutWriteDeltaSnapshot(int firstServerCommand, fileHandle_t f, qboolean forceNonDelta, clientConnection_t *clcCut, clientActive_t *clCut) {
	msg_t			msgImpl, *msg = &msgImpl;
	byte			msgData[MAX_MSGLEN];
	clSnapshot_t	*frame, *oldframe;
	int				lastframe = 0;
	int				snapFlags;
	MSG_Init(msg, msgData, sizeof(msgData));
	MSG_Bitstream(msg);
	MSG_WriteLong(msg, clcCut->reliableSequence);
	// copy over any commands
	for (int serverCommand = firstServerCommand; serverCommand <= clcCut->serverCommandSequence; serverCommand++) {
		char *command = clcCut->serverCommands[serverCommand & (MAX_RELIABLE_COMMANDS - 1)];
		MSG_WriteByte(msg, svc_serverCommand);
		MSG_WriteLong(msg, serverCommand/* + serverCommandOffset*/);
		MSG_WriteString(msg, command);
	}
	// this is the snapshot we are creating
	frame = &clCut->snap;
	if (clCut->snap.messageNum > 0 && !forceNonDelta) {
		lastframe = 1;
		oldframe = &clCut->snapshots[(clCut->snap.messageNum - 1) & PACKET_MASK]; // 1 frame previous
		if (!oldframe->valid) {
			// not yet set
			lastframe = 0;
			oldframe = NULL;
		}
	} else {
		lastframe = 0;
		oldframe = NULL;
	}
	MSG_WriteByte(msg, svc_snapshot);
	// send over the current server time so the client can drift
	// its view of time to try to match
	MSG_WriteLong(msg, frame->serverTime);
	// what we are delta'ing from
	MSG_WriteByte(msg, lastframe);
	snapFlags = frame->snapFlags;
	MSG_WriteByte(msg, snapFlags);
	// send over the areabits
	MSG_WriteByte(msg, sizeof(frame->areamask));
	MSG_WriteData(msg, frame->areamask, sizeof(frame->areamask));
	// delta encode the playerstate
	if (oldframe) {
#ifdef _ONEBIT_COMBO
		MSG_WriteDeltaPlayerstate(msg, &oldframe->ps, &frame->ps, frame->pDeltaOneBit, frame->pDeltaNumBit);
#else
		MSG_WriteDeltaPlayerstate(msg, &oldframe->ps, &frame->ps);
#endif
		if (frame->ps.m_iVehicleNum) {
		//then write the vehicle's playerstate too
			if (!oldframe->ps.m_iVehicleNum) {
			//if last frame didn't have vehicle, then the old vps isn't gonna delta
			//properly (because our vps on the client could be anything)
#ifdef _ONEBIT_COMBO
				MSG_WriteDeltaPlayerstate(msg, NULL, &frame->vps, NULL, NULL, qtrue);
#else
				MSG_WriteDeltaPlayerstate(msg, NULL, &frame->vps, qtrue);
#endif
			} else {
#ifdef _ONEBIT_COMBO
				MSG_WriteDeltaPlayerstate(msg, &oldframe->vps, &frame->vps, frame->pDeltaOneBitVeh, frame->pDeltaNumBitVeh, qtrue);
#else
				MSG_WriteDeltaPlayerstate(msg, &oldframe->vps, &frame->vps, qtrue);
#endif
			}
		}
	} else {
#ifdef _ONEBIT_COMBO
		MSG_WriteDeltaPlayerstate(msg, NULL, &frame->ps, NULL, NULL);
#else
		MSG_WriteDeltaPlayerstate(msg, NULL, &frame->ps);
#endif
		if (frame->ps.m_iVehicleNum) {
		//then write the vehicle's playerstate too
#ifdef _ONEBIT_COMBO
			MSG_WriteDeltaPlayerstate(msg, NULL, &frame->vps, NULL, NULL, qtrue);
#else
			MSG_WriteDeltaPlayerstate(msg, NULL, &frame->vps, qtrue);
#endif
		}
	}
	// delta encode the entities
	demoCutEmitPacketEntities(oldframe, frame, msg, clCut);
	MSG_WriteByte(msg, svc_EOF);
	demoCutWriteDemoMessage(msg, f, clcCut);
}
Ejemplo n.º 16
0
/*
Start a server-side demo.

This does it all, create the file and adjust the demo-related
stuff in client_t.

This is mostly ripped from sv_client.c/SV_SendClientGameState
and cl_main.c/CL_Record_f.
*/
static void SVD_StartDemoFile(client_t *client, const char *path)
{
        int             i, len;
        entityState_t   *base, nullstate;
        msg_t           msg;
        byte            buffer[MAX_MSGLEN];
        fileHandle_t    file;

        Com_DPrintf("SVD_StartDemoFile\n");
        assert(!client->demo_recording);

        // create the demo file and write the necessary header
        file = FS_FOpenFileWrite(path);
        assert(file != 0);

        MSG_Init(&msg, buffer, sizeof(buffer));
        MSG_Bitstream(&msg); // XXX server code doesn't do this, client code does

        MSG_WriteLong(&msg, client->lastClientCommand); // TODO: or is it client->reliableSequence?

        MSG_WriteByte(&msg, svc_gamestate);
        MSG_WriteLong(&msg, client->reliableSequence);

        for (i = 0; i < MAX_CONFIGSTRINGS; i++) {
                if (sv.configstrings[i][0]) {
                        MSG_WriteByte(&msg, svc_configstring);
                        MSG_WriteShort(&msg, i);
                        MSG_WriteBigString(&msg, sv.configstrings[i]);
                }
        }

        Com_Memset(&nullstate, 0, sizeof(nullstate));
        for (i = 0 ; i < MAX_GENTITIES; i++) {
                base = &sv.svEntities[i].baseline;
                if (!base->number) {
                        continue;
                }
                MSG_WriteByte(&msg, svc_baseline);
                MSG_WriteDeltaEntity(&msg, &nullstate, base, qtrue);
        }

        MSG_WriteByte(&msg, svc_EOF);

        MSG_WriteLong(&msg, client - svs.clients);
        MSG_WriteLong(&msg, sv.checksumFeed);

        MSG_WriteByte(&msg, svc_EOF); // XXX server code doesn't do this, SV_Netchan_Transmit adds it!

        len = LittleLong(client->netchan.outgoingSequence-1);
        FS_Write(&len, 4, file);

        len = LittleLong (msg.cursize);
        FS_Write(&len, 4, file);
        FS_Write(msg.data, msg.cursize, file);

        FS_Flush(file);

        // adjust client_t to reflect demo started
        client->demo_recording = qtrue;
        client->demo_file = file;
        client->demo_waiting = qtrue;
        client->demo_backoff = 1;
        client->demo_deltas = 0;
}
Ejemplo n.º 17
0
void demoCutWriteDemoHeader(fileHandle_t f, clientConnection_t *clcCut, clientActive_t *clCut) {
	byte			bufData[MAX_MSGLEN];
	msg_t			buf;
	int				i;
	int				len;
	entityState_t	*ent;
	entityState_t	nullstate;
	char			*s;
	// write out the gamestate message
	MSG_Init(&buf, bufData, sizeof(bufData));
	MSG_Bitstream(&buf);
	// NOTE, MRE: all server->client messages now acknowledge
	MSG_WriteLong(&buf, clcCut->reliableSequence);
	MSG_WriteByte(&buf, svc_gamestate);
	MSG_WriteLong(&buf, clcCut->serverCommandSequence);
	// configstrings
	for (i = 0; i < MAX_CONFIGSTRINGS; i++) {
		if (!clCut->gameState.stringOffsets[i]) {
			continue;
		}
		s = clCut->gameState.stringData + clCut->gameState.stringOffsets[i];
		MSG_WriteByte(&buf, svc_configstring);
		MSG_WriteShort(&buf, i);
		MSG_WriteBigString(&buf, s);
	}
	// baselines
	Com_Memset(&nullstate, 0, sizeof(nullstate));
	for (i = 0; i < MAX_GENTITIES ; i++) {
		ent = &clCut->entityBaselines[i];
		if ( !ent->number ) {
			continue;
		}
		MSG_WriteByte(&buf, svc_baseline);
		MSG_WriteDeltaEntity(&buf, &nullstate, ent, qtrue);
	}
	MSG_WriteByte(&buf, svc_EOF);
	// finished writing the gamestate stuff
	// write the client num
	MSG_WriteLong(&buf, clcCut->clientNum);
	// write the checksum feed
	MSG_WriteLong(&buf, clcCut->checksumFeed);
	// RMG stuff
	if ( clcCut->rmgHeightMapSize ) {
		// Height map
		MSG_WriteShort(&buf, (unsigned short)clcCut->rmgHeightMapSize);
		MSG_WriteBits(&buf, 0, 1 );
		MSG_WriteData(&buf, clcCut->rmgHeightMap, clcCut->rmgHeightMapSize);
		// Flatten map
		MSG_WriteShort(&buf, (unsigned short)clcCut->rmgHeightMapSize);
		MSG_WriteBits(&buf, 0, 1 );
		MSG_WriteData(&buf, clcCut->rmgFlattenMap, clcCut->rmgHeightMapSize);
		// Seed
		MSG_WriteLong (&buf, clcCut->rmgSeed);
		// Automap symbols
		MSG_WriteShort (&buf, (unsigned short)clcCut->rmgAutomapSymbolCount);
		for (i = 0; i < clcCut->rmgAutomapSymbolCount; i ++) {
			MSG_WriteByte(&buf, (unsigned char)clcCut->rmgAutomapSymbols[i].mType);
			MSG_WriteByte(&buf, (unsigned char)clcCut->rmgAutomapSymbols[i].mSide);
			MSG_WriteLong(&buf, (long)clcCut->rmgAutomapSymbols[i].mOrigin[0]);
			MSG_WriteLong(&buf, (long)clcCut->rmgAutomapSymbols[i].mOrigin[1]);
		}
	} else {
		MSG_WriteShort (&buf, 0);
	}
	// finished writing the client packet
	MSG_WriteByte(&buf, svc_EOF);
	// write it to the demo file
	len = LittleLong(clcCut->serverMessageSequence - 1);
	FS_Write(&len, 4, f);
	len = LittleLong(buf.cursize);
	FS_Write(&len, 4, f);
	FS_Write(buf.data, buf.cursize, f);
}
Ejemplo n.º 18
0
/*
====================
CL_Record_f

record <slot> [<demoname>]

Begins recording a demo from the current position
====================
*/
void CL_Record( client_t	*cl, char *s ) {
	char		name[MAX_OSPATH];
	char		name_zip[MAX_OSPATH];
	byte		bufData[MAX_MSGLEN];
	msg_t	buf;
	int			i;
	int			len;
	entityState_t	*ent;
	entityState_t	nullstate;
	int         clientnum;
	char	*guid;
	char	prefix[MAX_OSPATH];

	clientnum = cl - svs.clients;

	if ( cl->demorecording ) {
		Com_Printf ("Already recording client %i.\n", clientnum);
		return;
	}

//	if ( cl->state != CA_ACTIVE ) {
//		Com_Printf ("You must be in a level to record.\n");
//		return;
//	}
//  // sync 0 doesn't prevent recording, so not forcing it off .. everyone does g_sync 1 ; record ; g_sync 0 ..
//	if ( NET_IsLocalAddress( cl->serverAddress ) && !Cvar_VariableValue( "g_synchronousClients" ) ) {
//		Com_Printf (S_COLOR_YELLOW "WARNING: You should set 'g_synchronousClients 1' for smoother demo recording\n");
//	}

	if ( s ) {
		Com_sprintf (name, sizeof(name), "demos/%s.dm_%d", s, PROTOCOL_VERSION );
	} else {
		int		number,n,a,b,c,d;
		guid = Info_ValueForKey(cl->userinfo, "cl_guid");
		if (!Q_stricmp(guid, "")) {
			guid = "LONGGONE";
		}
		Q_strncpyz(prefix, guid, 9);

		// scan for a free demo name
		for ( number = 0 ; number <= 9999 ; number++ ) {
			if(number < 0 || number > 9999)
				number = 9999;
			n = number;
			a = n / 1000;
			n -= a*1000;
			b = n / 100;
			n -= b*100;
			c = n / 10;
			n -= c*10;
			d = n;

			Com_sprintf (name, sizeof(name), "demos/%s_%s_%i%i%i%i.dm_%d", prefix, sv_mapname->string, a, b, c, d, PROTOCOL_VERSION );
			Com_sprintf (name_zip, sizeof(name_zip), "demos/%s_%s_%i%i%i%i.dm_%d.zip", prefix, sv_mapname->string, a, b, c, d, PROTOCOL_VERSION );
			Q_strlwr(name);
			Q_strlwr(name_zip);
			if (!FS_FileExists(name) && !FS_FileExists(name_zip)) {
				break;	// file doesn't exist
			}
		}
	}

	// open the demo file

	if (!sv_autorecord->integer) {
		Com_Printf ("recording client %i to %s.\n", clientnum, name);
	} else {
		Com_Printf ("Record: %i: %s\n", clientnum, name);
	}

	cl->demofile = FS_FOpenFileWrite( name );
	if ( !cl->demofile ) {
		Com_Printf ("ERROR: couldn't open.\n");
		return;
	}
	// don't start saving messages until a non-delta compressed message is received
	cl->demowaiting = qtrue;
	cl->savedemo = qfalse; // demo will not be saved if sv_autorecord 1 and cl's score is too low

	Q_strncpyz( cl->demoName, name, sizeof( cl->demoName ) );

	// write out the gamestate message
	MSG_Init (&buf, bufData, sizeof(bufData));
	MSG_Bitstream(&buf);

	// NOTE, MRE: all server->client messages now acknowledge
	MSG_WriteLong( &buf, cl->lastClientCommand );// 0007 - 000A

	MSG_WriteByte (&buf, svc_gamestate);// 000B
	MSG_WriteLong (&buf, cl->reliableSequence );// 000C - 000F


	// write the configstrings
	for ( i = 0 ; i < MAX_CONFIGSTRINGS ; i++ ) {
		if (sv.configstrings[i][0]) {
			MSG_WriteByte( &buf, svc_configstring );
			MSG_WriteShort( &buf, i );
			MSG_WriteBigString( &buf, sv.configstrings[i] );
		}
	}

	// write the baselines
	Com_Memset( &nullstate, 0, sizeof( nullstate ) );
	for ( i = 0 ; i < MAX_GENTITIES; i++ ) {
		ent = &sv.svEntities[i].baseline;
		if ( !ent->number ) {
			continue;
		}
		MSG_WriteByte( &buf, svc_baseline );
		MSG_WriteDeltaEntity( &buf, &nullstate, ent, qtrue );
	}

	MSG_WriteByte( &buf, svc_EOF );

	// finished writing the gamestate stuff

	// write the client num
	MSG_WriteLong(&buf, clientnum);
	// write the checksum feed
	MSG_WriteLong(&buf, sv.checksumFeed);

	// finished writing the client packet
	MSG_WriteByte( &buf, svc_EOF );

	// write it to the demo file
	len = LittleLong( cl->netchan.outgoingSequence-1 );
	FS_Write (&len, 4, cl->demofile);// 0000 - 0003

	len = LittleLong (buf.cursize);
	FS_Write (&len, 4, cl->demofile);// 0004 - 0007
	FS_Write (buf.data, buf.cursize, cl->demofile);// 0007 - ...

	// the rest of the demo file will be copied from net messages
	cl->demorecording = qtrue;
}
Ejemplo n.º 19
0
/*
===================
SV_ExecuteClientMessage

Parse a client packet
===================
*/
void SV_ExecuteClientMessage( client_t *cl, msg_t *msg ) {
	int			c;
	int			serverId;

	MSG_Bitstream(msg);

	serverId = MSG_ReadLong( msg );
	cl->messageAcknowledge = MSG_ReadLong( msg );

	if (cl->messageAcknowledge < 0) {
		// usually only hackers create messages like this
		// it is more annoying for them to let them hanging
#ifndef NDEBUG
		SV_DropClient( cl, "DEBUG: illegible client message" );
#endif
		return;
	}

	cl->reliableAcknowledge = MSG_ReadLong( msg );

	// NOTE: when the client message is fux0red the acknowledgement numbers
	// can be out of range, this could cause the server to send thousands of server
	// commands which the server thinks are not yet acknowledged in SV_UpdateServerCommandsToClient
	if (cl->reliableAcknowledge < cl->reliableSequence - MAX_RELIABLE_COMMANDS) {
		// usually only hackers create messages like this
		// it is more annoying for them to let them hanging
#ifndef NDEBUG
		SV_DropClient( cl, "DEBUG: illegible client message" );
#endif
		cl->reliableAcknowledge = cl->reliableSequence;
		return;
	}
	// if this is a usercmd from a previous gamestate,
	// ignore it or retransmit the current gamestate
	// 
	// if the client was downloading, let it stay at whatever serverId and
	// gamestate it was at.  This allows it to keep downloading even when
	// the gamestate changes.  After the download is finished, we'll
	// notice and send it a new game state
	//
	// https://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=536
	// don't drop as long as previous command was a nextdl, after a dl is done, downloadName is set back to ""
	// but we still need to read the next message to move to next download or send gamestate
	// I don't like this hack though, it must have been working fine at some point, suspecting the fix is somewhere else
	if ( serverId != sv.serverId && !*cl->downloadName && !strstr(cl->lastClientCommandString, "nextdl") ) {
		if ( serverId >= sv.restartedServerId && serverId < sv.serverId ) { // TTimo - use a comparison here to catch multiple map_restart
			// they just haven't caught the map_restart yet
			Com_DPrintf("%s : ignoring pre map_restart / outdated client message\n", cl->name);
			return;
		}
		// if we can tell that the client has dropped the last
		// gamestate we sent them, resend it
		if ( cl->messageAcknowledge > cl->gamestateMessageNum ) {
			Com_DPrintf( "%s : dropped gamestate, resending\n", cl->name );
			SV_SendClientGameState( cl );
		}
		return;
	}

	// this client has acknowledged the new gamestate so it's
	// safe to start sending it the real time again
	if( cl->oldServerTime && serverId == sv.serverId ){
		Com_DPrintf( "%s acknowledged gamestate\n", cl->name );
		cl->oldServerTime = 0;
	}

	// read optional clientCommand strings
	do {
		c = MSG_ReadByte( msg );

		// See if this is an extension command after the EOF, which means we
		//  got data that a legacy server should ignore.
		if ((c == clc_EOF) && (MSG_LookaheadByte( msg ) == clc_extension)) {
			MSG_ReadByte( msg );  // throw the clc_extension byte away.
			c = MSG_ReadByte( msg );  // something legacy servers can't do!
			// sometimes you get a clc_extension at end of stream...dangling
			//  bits in the huffman decoder giving a bogus value?
			if (c == -1) {
				c = clc_EOF;
			}
		}

		if ( c == clc_EOF ) {
			break;
		}

		if ( c != clc_clientCommand ) {
			break;
		}
		if ( !SV_ClientCommand( cl, msg ) ) {
			return;	// we couldn't execute it because of the flood protection
		}
		if (cl->state == CS_ZOMBIE) {
			return;	// disconnect command
		}
	} while ( 1 );

	// read the usercmd_t
	if ( c == clc_move ) {
		SV_UserMove( cl, msg, qtrue );
	} else if ( c == clc_moveNoDelta ) {
		SV_UserMove( cl, msg, qfalse );
	} else if ( c == clc_voip ) {
#ifdef USE_VOIP
		SV_UserVoip( cl, msg );
#endif
	} else if ( c != clc_EOF ) {
		Com_Printf( "WARNING: bad command byte for client %i\n", (int) (cl - svs.clients) );
	}
//	if ( msg->readcount != msg->cursize ) {
//		Com_Printf( "WARNING: Junk at end of packet for client %i\n", cl - svs.clients );
//	}
}
Ejemplo n.º 20
0
/*
===================
CL_WritePacket

Create and send the command packet to the server
Including both the reliable commands and the usercmds

During normal gameplay, a client packet will contain something like:

4	sequence number
2	qport
4	serverid
4	acknowledged sequence number
4	clc.serverCommandSequence
<optional reliable commands>
1	clc_move or clc_moveNoDelta
1	command count
<count * usercmds>

===================
*/
void CL_WritePacket( void ) {
	msg_t		buf;
	byte		data[MAX_MSGLEN];
	int			i, j;
	usercmd_t	*cmd, *oldcmd;
	usercmd_t	nullcmd;
	int			packetNum;
	int			oldPacketNum;
	int			count, key;

	// don't send anything if playing back a demo
	if ( clc.demoplaying || clc.state == CA_CINEMATIC ) {
		return;
	}

	Com_Memset( &nullcmd, 0, sizeof(nullcmd) );
	oldcmd = &nullcmd;

	MSG_Init( &buf, data, sizeof(data) );

	MSG_Bitstream( &buf );
	// write the current serverId so the server
	// can tell if this is from the current gameState
	MSG_WriteLong( &buf, cl.serverId );

	// write the last message we received, which can
	// be used for delta compression, and is also used
	// to tell if we dropped a gamestate
	MSG_WriteLong( &buf, clc.serverMessageSequence );

	// write the last reliable message we received
	MSG_WriteLong( &buf, clc.serverCommandSequence );

	// write any unacknowledged clientCommands
	for ( i = clc.reliableAcknowledge + 1 ; i <= clc.reliableSequence ; i++ ) {
		MSG_WriteByte( &buf, clc_clientCommand );
		MSG_WriteLong( &buf, i );
		MSG_WriteString( &buf, clc.reliableCommands[ i & (MAX_RELIABLE_COMMANDS-1) ] );
	}

	// we want to send all the usercmds that were generated in the last
	// few packet, so even if a couple packets are dropped in a row,
	// all the cmds will make it to the server
	if ( cl_packetdup->integer < 0 ) {
		Cvar_Set( "cl_packetdup", "0" );
	} else if ( cl_packetdup->integer > 5 ) {
		Cvar_Set( "cl_packetdup", "5" );
	}
	oldPacketNum = (clc.netchan.outgoingSequence - 1 - cl_packetdup->integer) & PACKET_MASK;
	count = cl.cmdNumber - cl.outPackets[ oldPacketNum ].p_cmdNumber;
	if ( count > MAX_PACKET_USERCMDS ) {
		count = MAX_PACKET_USERCMDS;
		Com_Printf("MAX_PACKET_USERCMDS\n");
	}

#ifdef USE_VOIP
	if (clc.voipOutgoingDataSize > 0)
	{
		if((clc.voipFlags & VOIP_SPATIAL) || Com_IsVoipTarget(clc.voipTargets, sizeof(clc.voipTargets), -1))
		{
			MSG_WriteByte (&buf, clc_voip);
			MSG_WriteByte (&buf, clc.voipOutgoingGeneration);
			MSG_WriteLong (&buf, clc.voipOutgoingSequence);
			MSG_WriteByte (&buf, clc.voipOutgoingDataFrames);
			MSG_WriteData (&buf, clc.voipTargets, sizeof(clc.voipTargets));
			MSG_WriteByte(&buf, clc.voipFlags);
			MSG_WriteShort (&buf, clc.voipOutgoingDataSize);
			MSG_WriteData (&buf, clc.voipOutgoingData, clc.voipOutgoingDataSize);

			// If we're recording a demo, we have to fake a server packet with
			//  this VoIP data so it gets to disk; the server doesn't send it
			//  back to us, and we might as well eliminate concerns about dropped
			//  and misordered packets here.
			if(clc.demorecording && !clc.demowaiting)
			{
				const int voipSize = clc.voipOutgoingDataSize;
				msg_t fakemsg;
				byte fakedata[MAX_MSGLEN];
				MSG_Init (&fakemsg, fakedata, sizeof (fakedata));
				MSG_Bitstream (&fakemsg);
				MSG_WriteLong (&fakemsg, clc.reliableAcknowledge);
				MSG_WriteByte (&fakemsg, svc_voip);
				MSG_WriteShort (&fakemsg, clc.clientNum);
				MSG_WriteByte (&fakemsg, clc.voipOutgoingGeneration);
				MSG_WriteLong (&fakemsg, clc.voipOutgoingSequence);
				MSG_WriteByte (&fakemsg, clc.voipOutgoingDataFrames);
				MSG_WriteShort (&fakemsg, clc.voipOutgoingDataSize );
				MSG_WriteBits (&fakemsg, clc.voipFlags, VOIP_FLAGCNT);
				MSG_WriteData (&fakemsg, clc.voipOutgoingData, voipSize);
				MSG_WriteByte (&fakemsg, svc_EOF);
				CL_WriteDemoMessage (&fakemsg, 0);
			}

			clc.voipOutgoingSequence += clc.voipOutgoingDataFrames;
			clc.voipOutgoingDataSize = 0;
			clc.voipOutgoingDataFrames = 0;
		}
		else
		{
			// We have data, but no targets. Silently discard all data
			clc.voipOutgoingDataSize = 0;
			clc.voipOutgoingDataFrames = 0;
		}
	}
#endif

	if ( count >= 1 ) {
		if ( cl_showSend->integer ) {
			Com_Printf( "(%i)", count );
		}

		// begin a client move command
		if ( cl_nodelta->integer || !cl.snap.valid || clc.demowaiting
			|| clc.serverMessageSequence != cl.snap.messageNum ) {
			MSG_WriteByte (&buf, clc_moveNoDelta);
		} else {
			MSG_WriteByte (&buf, clc_move);
		}

		// write the command count
		MSG_WriteByte( &buf, count );

		// use the checksum feed in the key
		key = clc.checksumFeed;
		// also use the message acknowledge
		key ^= clc.serverMessageSequence;
		// also use the last acknowledged server command in the key
		key ^= MSG_HashKey(clc.serverCommands[ clc.serverCommandSequence & (MAX_RELIABLE_COMMANDS-1) ], 32);

		// write all the commands, including the predicted command
		for ( i = 0 ; i < count ; i++ ) {
			j = (cl.cmdNumber - count + i + 1) & CMD_MASK;
			cmd = &cl.cmds[j];
			MSG_WriteDeltaUsercmdKey (&buf, key, oldcmd, cmd);
			oldcmd = cmd;
		}
	}

	//
	// deliver the message
	//
	packetNum = clc.netchan.outgoingSequence & PACKET_MASK;
	cl.outPackets[ packetNum ].p_realtime = cls.realtime;
	cl.outPackets[ packetNum ].p_serverTime = oldcmd->serverTime;
	cl.outPackets[ packetNum ].p_cmdNumber = cl.cmdNumber;
	clc.lastPacketSentTime = cls.realtime;

	if ( cl_showSend->integer ) {
		Com_Printf( "%i ", buf.cursize );
	}

	CL_Netchan_Transmit (&clc.netchan, &buf);	
}
Ejemplo n.º 21
0
/*
=====================
CL_ParseServerMessage
=====================
*/
void CL_ParseServerMessage( msg_t *msg )
{
	int cmd;
//	msg_t           msgback;

//	msgback = *msg;

	if ( cl_shownet->integer == 1 )
	{
		Log::Notice("%i ", msg->cursize );
	}
	else if ( cl_shownet->integer >= 2 )
	{
		Log::Notice( "------------------\n" );
	}

	MSG_Bitstream( msg );

	// get the reliable sequence acknowledge number
	clc.reliableAcknowledge = MSG_ReadLong( msg );

	//
	if ( clc.reliableAcknowledge < clc.reliableSequence - MAX_RELIABLE_COMMANDS )
	{
		clc.reliableAcknowledge = clc.reliableSequence;
	}

	//
	// parse the message
	//
	while ( 1 )
	{
		if ( msg->readcount > msg->cursize )
		{
			Com_Error( errorParm_t::ERR_DROP, "CL_ParseServerMessage: read past end of server message" );
		}

		cmd = MSG_ReadByte( msg );

		if ( cmd < 0 || cmd == svc_EOF )
		{
			SHOWNET( msg, "END OF MESSAGE" );
			break;
		}

		if ( cl_shownet->integer >= 2 )
		{
			if ( !svc_strings[ cmd ] )
			{
				Log::Notice( "%3i:BAD CMD %i\n", msg->readcount - 1, cmd );
			}
			else
			{
				SHOWNET( msg, svc_strings[ cmd ] );
			}
		}

		// other commands
		switch ( cmd )
		{
			default:
				Com_Error( errorParm_t::ERR_DROP, "CL_ParseServerMessage: Illegible server message %d", cmd );

			case svc_nop:
				break;

			case svc_serverCommand:
				CL_ParseCommandString( msg );
				break;

			case svc_gamestate:
				CL_ParseGamestate( msg );
				break;

			case svc_snapshot:
				CL_ParseSnapshot( msg );
				break;

			case svc_download:
				CL_ParseDownload( msg );
				break;
		}
	}

}