private void OnReceiveDataFromServer(int channelId, byte[] bytesReceived, int numBytesReceived)
{
Profiler.BeginSample("OnReceiveDataFromServer");
using (var memoryStream = new MemoryStream(bytesReceived, 0, numBytesReceived))
{
using (var reader = new BinaryReader(memoryStream))
{
var messageTypeAsByte = reader.ReadByte();
RpcInfo rpcInfo;
if (messageTypeAsByte == NetLib.StateSynchronizationMessageId)
{
OnReceiveDeltaGameStateFromServer(reader, bytesReceived, numBytesReceived);
}
else if (NetLib.rpcInfoById.TryGetValue(messageTypeAsByte, out rpcInfo))
{
Profiler.BeginSample("Deserialize & Execute RPC");
var rpcArguments = NetworkSerializationUtils.DeserializeRpcCallArguments(rpcInfo, reader);
NetLib.ExecuteRpc(rpcInfo.Id, null, ObjectContainingRpcs, rpcArguments);
Profiler.EndSample();
}
else
{
throw new NotImplementedException("Unknown message type: " + messageTypeAsByte);
}
}
}
Profiler.EndSample();
}
public void CallRpcOnServer(string name, int channelId, object argumentsObj)
{
var rpcId = NetLib.rpcIdByName[name];
var rpcInfo = NetLib.rpcInfoById[rpcId];
Assert.IsTrue(rpcInfo.ExecuteOn == NetworkPeerType.Server);
var messageBytes = NetworkSerializationUtils.SerializeRpcCall(rpcInfo, argumentsObj);
SendMessageToServer(channelId, messageBytes);
}
public void CallRpcOnAllClientsExcept(string name, int exceptClientConnectionId, int channelId, object argumentsObj)
{
var rpcId = NetLib.rpcIdByName[name];
var rpcInfo = NetLib.rpcInfoById[rpcId];
Assert.IsTrue(rpcInfo.ExecuteOn == NetworkPeerType.Client);
var messageBytes = NetworkSerializationUtils.SerializeRpcCall(rpcInfo, argumentsObj);
SendMessageToAllClientsExcept(exceptClientConnectionId, channelId, messageBytes);
}
private void SendGameStateDiff(int connectionId, NetworkedGameState gameState, NetworkedGameState oldGameState)
{
byte[] messageBytes;
using (var memoryStream = new MemoryStream())
{
using (var writer = new BinaryWriter(memoryStream))
{
writer.Write(NetLib.StateSynchronizationMessageId);
writer.Write(gameState.SequenceNumber);
writer.Write(oldGameState.SequenceNumber);
NetworkSerializationUtils.SerializeNetworkedGameState(writer, gameState, oldGameState);
}
messageBytes = memoryStream.ToArray();
}
SendMessageToClient(connectionId, unreliableFragmentedChannelId, messageBytes);
}
private void OnReceiveDeltaGameStateFromServer(BinaryReader reader, byte[] bytesReceived, int numBytesReceived)
{
uint latestReceivedGameStateSequenceNumber = (cachedReceivedGameStates.Any())
? cachedReceivedGameStates[cachedReceivedGameStates.Count - 1].SequenceNumber
: 0;
latestReceivedGameStateSequenceNumber = Math.Max(
latestReceivedGameStateSequenceNumber,
latestSequenceNumberDeltaGameStateBytesPair?.Item1 ?? 0
);
var sequenceNumber = reader.ReadUInt32();
if (sequenceNumber > latestReceivedGameStateSequenceNumber)
{
var bytesLeft = new byte[numBytesReceived - reader.BaseStream.Position];
Array.Copy(bytesReceived, reader.BaseStream.Position, bytesLeft, 0, bytesLeft.Length);
latestSequenceNumberDeltaGameStateBytesPair = new Tuple <uint, byte[]>(
sequenceNumber,
bytesLeft
);
}
if (NetLib.EnableStateDeltaLogging)
{
var sequenceNumberRelativeTo = reader.ReadUInt32();
var networkedGameStateRelativeTo = GetNetworkedGameStateRelativeTo(sequenceNumberRelativeTo);
Profiler.BeginSample("State Deserialization");
var receivedGameState = NetworkSerializationUtils.DeserializeNetworkedGameState(
reader, sequenceNumber, networkedGameStateRelativeTo
);
Profiler.EndSample();
LogReceivedStateDelta(receivedGameState);
}
}
private void FinishHandlingDeltaGameState(uint sequenceNumber, byte[] deltaBytes)
{
using (var memoryStream = new MemoryStream(deltaBytes))
{
using (var reader = new BinaryReader(memoryStream))
{
var sequenceNumberRelativeTo = reader.ReadUInt32();
var networkedGameStateRelativeTo = GetNetworkedGameStateRelativeTo(sequenceNumberRelativeTo);
Profiler.BeginSample("State Deserialization");
var receivedGameState = NetworkSerializationUtils.DeserializeNetworkedGameState(
reader, sequenceNumber, networkedGameStateRelativeTo
);
Profiler.EndSample();
CallRpcOnServer("ServerOnReceiveClientGameStateAck", unreliableChannelId, new
{
gameStateSequenceNumber = receivedGameState.SequenceNumber
});
cachedReceivedGameStates.Add(receivedGameState);
var indexOfLatestGameStateToDiscard = cachedReceivedGameStates
.FindLastIndex(ngs => ngs.SequenceNumber < sequenceNumberRelativeTo);
if (indexOfLatestGameStateToDiscard >= 0)
{
var numberOfLatestGameStatesToDiscard = indexOfLatestGameStateToDiscard + 1;
cachedReceivedGameStates.RemoveRange(0, numberOfLatestGameStatesToDiscard);
}
Profiler.BeginSample("ClientOnReceiveGameState");
OnReceiveGameState(receivedGameState);
Profiler.EndSample();
}
}
}
private void OnReceiveDataFromClient(int connectionId, int channelId, byte[] bytesReceived, int numBytesReceived)
{
using (var memoryStream = new MemoryStream(bytesReceived, 0, numBytesReceived))
{
using (var reader = new BinaryReader(memoryStream))
{
var messageTypeAsByte = reader.ReadByte();
RpcInfo rpcInfo;
if (messageTypeAsByte == NetLib.StateSynchronizationMessageId)
{
throw new System.NotImplementedException("Servers don't support receiving state synchronization messages.");
}
else if (NetLib.rpcInfoById.TryGetValue(messageTypeAsByte, out rpcInfo))
{
var rpcArguments = NetworkSerializationUtils.DeserializeRpcCallArguments(rpcInfo, reader);
CurrentRpcSenderConnectionId = connectionId;
if (rpcInfo.Name != "ServerOnReceiveClientGameStateAck")
{
NetLib.ExecuteRpc(rpcInfo.Id, ObjectContainingRpcs, null, rpcArguments);
}
else
{
NetLib.ExecuteRpc(rpcInfo.Id, this, null, rpcArguments);
}
}
else
{
throw new System.NotImplementedException("Unknown message type: " + messageTypeAsByte);
}
}
}
}