/*
===================
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 );
// }
}
/*
===================
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 );
// }
}
/*
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;
}
/*
=====================
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;
}
}
}
/*
===================
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 );
}
}
/*
===================
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 );
}
}
/*
=====================
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);
}
/*
===================
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 );
}
}
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;
}
// 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;
}
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
}
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;
}
/*
=====================
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;
}
}
}
/*
=====================
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;
}
}
}
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);
}
/*
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;
}
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);
}
/*
====================
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;
}
/*
===================
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 );
// }
}
/*
===================
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);
}
/*
=====================
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;
}
}
}