public void ReceivePlayerRoutingUpdate(ref PacketReader reader)
{
//This method allocates a few temporary lists. This is ok because it only happens very rarely - when a player joins or leaves the session
Log.Debug("Received player routing table");
//Deserialize the new session state (this is essentially a list of all players in the session)
_tempNewRoutingTable.Clear();
_tempNewRoutingTable.Deserialize(ref reader);
//Check our own ID. If this isn't present something is wrong and bail out.
LocalPeerId = _tempNewRoutingTable.GetId(_client.PlayerName);
if (!LocalPeerId.HasValue)
{
Log.Warn("Received player routing update, cannot find self ID");
return;
}
// Find which players are no longer in the session. Do this before copying the information into _playerIds,
// this ensures the old player IDs can still be looked up inside the OnPlayerLeft method
foreach (var player in _playerIds.Items)
{
if (!_tempNewRoutingTable.GetId(player).HasValue)
{
_client.OnPlayerLeft(player);
}
}
// Clone the old state so we know who has joined the session
_tempOldRoutingTable.CopyFrom(_playerIds);
//Copy info from temp into ID table
_playerIds.CopyFrom(_tempNewRoutingTable);
// Find which players newly joined the session. Do this after copying the information into _playerIds,
// this ensures the new player IDs can be looked up inside the OnPlayerJoined methods
foreach (var player in _tempNewRoutingTable.Items)
{
if (!_tempOldRoutingTable.GetId(player).HasValue)
{
_client.OnPlayerJoined(player);
}
}
//Clean up after ourselves
_tempOldRoutingTable.Clear();
_tempNewRoutingTable.Clear();
}