bool CGameClient::ProcessMove(CLC_Move *msg)
{
// Don't process usercmds until the client is active. If we do, there can be weird behavior
// like the game trying to send reliable messages to the client and having those messages discarded.
if ( !IsActive() )
return true;
if ( m_LastMovementTick == sv.m_nTickCount )
{
// Only one movement command per frame, someone is cheating.
return true;
}
m_LastMovementTick = sv.m_nTickCount;
int totalcmds =msg->m_nBackupCommands + msg->m_nNewCommands;
// Decrement drop count by held back packet count
int netdrop = m_NetChannel->GetDropNumber();
bool ignore = !sv.IsActive();
#ifdef SWDS
bool paused = sv.IsPaused();
#else
bool paused = sv.IsPaused() || ( !sv.IsMultiplayer() && Con_IsVisible() );
#endif
// Make sure player knows of correct server time
g_ServerGlobalVariables.curtime = sv.GetTime();
g_ServerGlobalVariables.frametime = host_state.interval_per_tick;
// COM_Log( "sv.log", " executing %i move commands from client starting with command %i(%i)\n",
// numcmds,
// m_Client->m_NetChan->incoming_sequence,
// m_Client->m_NetChan->incoming_sequence & SV_UPDATE_MASK );
int startbit = msg->m_DataIn.GetNumBitsRead();
serverGameClients->ProcessUsercmds
(
edict, // Player edict
&msg->m_DataIn,
msg->m_nNewCommands,
totalcmds, // Commands in packet
netdrop, // Number of dropped commands
ignore, // Don't actually run anything
paused // Run, but don't actually do any movement
);
if ( msg->m_DataIn.IsOverflowed() )
{
Disconnect( "ProcessUsercmds: Overflowed reading usercmd data (check sending and receiving code for mismatches)!\n" );
return false;
}
int endbit = msg->m_DataIn.GetNumBitsRead();
if ( msg->m_nLength != (endbit-startbit) )
{
Disconnect( "ProcessUsercmds: Incorrect reading frame (check sending and receiving code for mismatches)!\n" );
return false;
}
return true;
}
/*
==============================
SV_ParseMove
==============================
*/
void SV_ParseMove(client_t *cl)
{
int numbackup = 2;
int numcmds;
int totalcmds;
client_frame_t *frame;
bf_read *pBuf = MSG_GetReadBuf();
if ( g_lastmovementtick == sv.tickcount ) // Only one movement command per frame, someone is cheating.
{
pBuf->SetOverflowFlag();
return;
}
g_lastmovementtick = sv.tickcount;
// Calculate ping time for client based on last frame that the client ack'd
frame = &host_client->frames[ host_client->netchan.incoming_acknowledged & SV_UPDATE_MASK ];
cl->m_bLoopback = !!pBuf->ReadOneBit();
numbackup = pBuf->ReadUBitLong( NUM_BACKUP_COMMAND_BITS );;
numcmds = pBuf->ReadByte();
totalcmds = numbackup + numcmds;
// Decrement drop count by held back packet count
net_drop -= ( numcmds - 1 );
bool ignore = !sv.active || ( !host_client->active && !host_client->spawned );
#ifdef SWDS
bool paused = ( sv.paused || ( (svs.maxclients <= 1) ) );
#else
bool paused = ( sv.paused || ( (svs.maxclients <= 1) && (Con_IsVisible()) ) );
#endif
// Make sure player knows of correct server time
g_ServerGlobalVariables.curtime = sv.gettime();
g_ServerGlobalVariables.frametime = TICK_RATE;
// COM_Log( "sv.log", " executing %i move commands from client starting with command %i(%i)\n",
// numcmds,
// host_client->netchan.incoming_sequence,
// host_client->netchan.incoming_sequence & SV_UPDATE_MASK );
float lastcmdtime = serverGameClients->ProcessUsercmds
(
sv_player, // Player edict
pBuf,
numcmds,
totalcmds, // Commands in packet
net_drop, // Number of dropped commands
ignore, // Don't actually run anything
paused // Run, but don't actually do any movement
);
// Adjust latency time by 1/2 last client frame since the message probably arrived 1/2 through client's frame loop
frame->latency -= 0.5 * lastcmdtime;
frame->latency = max( 0.0f, frame->latency );
if ( pBuf->IsOverflowed() )
{
SV_DropClient( host_client, false, "ProcessUsercmds: Overflowed reading usercmd data (check sending and receiving code for mismatches)!\n" );
return;
}
unsigned int tag = pBuf->ReadUBitLong( 32 );
if ( tag != 0xffffffff )
{
SV_DropClient( host_client, false, "ProcessUsercmds: Incorrect reading frame (check sending and receiving code for mismatches)!\n" );
pBuf->SetOverflowFlag();
return;
}
}