/*
================
CL_Netchan_Transmit
================
*/
void CL_Netchan_Transmit( netchan_t *chan, msg_t* msg ) {
#if defined RTCW_SP
// int i;
MSG_WriteByte( msg, clc_EOF );
// for(i=CL_ENCODE_START;i<msg->cursize;i++) {
// chksum[i-CL_ENCODE_START] = msg->data[i];
// }
// Huff_Compress( msg, CL_ENCODE_START );
#if DO_NET_ENCODE
CL_Netchan_Encode( msg );
#endif
Netchan_Transmit( chan, msg->cursize, msg->data );
#elif defined RTCW_MP
MSG_WriteByte( msg, clc_EOF );
CL_Netchan_Encode( msg );
Netchan_Transmit( chan, msg->cursize, msg->data );
#else
MSG_WriteByte( msg, clc_EOF );
CL_WriteBinaryMessage( msg );
if ( !SV_GameIsSinglePlayer() ) {
CL_Netchan_Encode( msg );
}
Netchan_Transmit( chan, msg->cursize, msg->data );
#endif // RTCW_XX
}
/*
================
CL_Netchan_Transmit
================
*/
void CL_Netchan_Transmit( netchan_t *chan, msg_t* msg ) {
MSG_WriteByte( msg, clc_EOF );
CL_WriteBinaryMessage( msg );
if ( !SV_GameIsSinglePlayer() ) {
CL_Netchan_Encode( msg );
}
Netchan_Transmit( chan, msg->cursize, msg->data );
}
/*
===================
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 );
}
}