bool onReturn(Network.ByteInStream stream)
{
int returnId = stream.ReadInt();
RPCResult result;
if (!results.TryGetValue(returnId, out result))
{
log.Error("No RPC result with the return index #{0} pending", returnId);
return(false);
}
if (stream.ReadBool())
{
Reader reader;
if (!readers.TryGetTypeValue(result.Type, out reader))
{
return(false);
}
result.BoxedValue = reader(stream, result.Type);
}
log.Info("Received result for {0}", result.Name);
result.IsDone = true;
result.Done();
results.Remove(result.ReturnIndex);
return(true);
}
internal void OnNetworkStream(Network.ByteInStream stream)
{
#if !DEBUG
try
{
#endif
while (stream.Stream.CanRead)
{
byte handlerId = stream.ReadByte();
IPacketHandler handler = packetHandlers[handlerId];
if (handler == null)
{
log.Error("No packet handler for id #{0} found, can't process byte stream", handlerId);
return;
}
if (!handler.OnPacket(handlerId, this, stream))
{
log.Error("Handler '{0}' failed processing byte stream", handler.GetType().GetPrettyName());
return;
}
}
#if !DEBUG
}
catch (Exception exn)
{
log.Error(exn);
}
#endif
}
public bool OnPacket(byte _, Context context, Network.ByteInStream stream)
{
if (stream.ReadBool())
{
return(onCall(stream));
}
else
{
return(onReturn(stream));
}
}
object readActor(Network.ByteInStream s, Type t)
{
Actor a;
ushort id = s.ReadUShort();
if (Context.GetActor(id, out a))
{
return(a);
}
log.Warn("No actor with id #{0} found", id);
return(null);
}
object readPlayer(Network.ByteInStream s, Type t)
{
Player p;
ushort id = s.ReadUShort();
if (Context.GetPlayer(id, out p))
{
return(p);
}
log.Warn("No player with id #{0} found", id);
return(null);
}
bool IPacketHandler.OnPacket(byte eventId, Context context, Network.ByteInStream stream)
{
EventDescriptor <T> descriptor = descriptors[eventId];
T target = ReadEventHeader(stream);
// Verify event target object
if (target == null)
{
log.Error("Failed to resolve target for event #{0}", eventId);
return(false);
}
// Unpack event
Event <T> ev = descriptor.Create(target);
ev.Source = stream.Player;
ev.SourceGameTime = stream.RemoteGameTime;
ev.Unpack(stream);
// Increase stats counter
Context.Stats.AddInEvent();
// Special logic depending on
// if we're a server or client
if (context.IsServer)
{
EventSources s = ev.AllowedSources;
bool raisedByOwner = IsSourceTargetOwner(ev);
bool isOwnerValid = raisedByOwner && (s & EventSources.Owner) == EventSources.Owner;
bool isRemoteValid = !raisedByOwner && (s & EventSources.Remotes) == EventSources.Remotes;
if (isOwnerValid || isRemoteValid)
{
raiseEventOnServer(ev);
}
else
{
log.Warn("Event {0} was remotely raised by {1}, but that player is not allowed to raise events of that type on target {2}", ev, ev.Source, ev.Target);
}
}
else
{
QueueOnClient(ev);
}
// Everythings fine, return true
return(true);
}
void onDataMessage(NetIncomingMessage message)
{
if (message.SenderConnection.Tag == null)
{
log.Error("Received data message from a connection without a tag, unabled to process data");
return;
}
ByteInStream stream = new ByteInStream(message.PeekDataBuffer(), message.LengthBytes, 0);
stream.Connection = (IConnection)message.SenderConnection.Tag;
stream.RemoteGameTime = stream.ReadSingle();
Receiver.Context.Stats.AddInBytes(message.LengthBytes);
Receiver.OnDataMessage(stream);
}
object readPair(Network.ByteInStream s, Type t)
{
Type[] tArgs = t.GetGenericArgs();
Reader r;
if (!readers.TryGetTypeValue(tArgs[0], out r))
{
return(null);
}
object first = r(s, tArgs[0]);
if (!readers.TryGetTypeValue(tArgs[1], out r))
{
return(null);
}
object second = r(s, tArgs[1]);
return(Activator.CreateInstance(t, first, second));
}
public void Unpack(Network.ByteInStream stream)
{
if (compressPosition)
{
position = new Vector3(
HalfUtilities.Unpack(stream.ReadUShort()),
HalfUtilities.Unpack(stream.ReadUShort()),
HalfUtilities.Unpack(stream.ReadUShort())
);
}
else
{
position = stream.ReadVector3();
}
if (yawOnly)
{
yaw = stream.ReadByte() * 1.40625f;
rotation = Quaternion.RotationAxis(Vector3.Up, yaw * SlimMath.Single.Deg2Rad);
}
else
{
rotation = Quaternion.RotationAxis(
new Vector3(
HalfUtilities.Unpack(stream.ReadUShort()),
HalfUtilities.Unpack(stream.ReadUShort()),
HalfUtilities.Unpack(stream.ReadUShort())
),
(stream.ReadByte() * 1.40625f * SlimMath.Single.Deg2Rad)
);
}
buffer.Push(Actor.Context.Time.GameTime,
new State {
Position = position, Rotation = rotation
}
);
}
internal bool UnpackSyncData(Network.ByteInStream stream)
{
uint indexes = stream.ReadUInt();
if (indexes == UInt32.MaxValue)
{
log.Debug("Received full sync for {0}", Actor);
}
else
{
log.Debug("Received delta sync for {0}", Actor);
}
for (int i = 0; i < Values.Length; ++i)
{
if ((indexes & ((uint)1 << i)) != 0)
{
Values[i].Unpack(stream);
}
}
return(true);
}
bool onCall(Network.ByteInStream stream)
{
string name = stream.ReadString();
Receiver receiver;
if (!receivers.TryGetValue(name, out receiver))
{
log.Error("No receiver for '{0}' found", name);
return(false);
}
int returnIndex = 0;
int length = receiver.Parameters.Length;
if (receiver.ReturnsValue)
{
returnIndex = stream.ReadInt();
}
if (receiver.RequiresInfoArgument)
{
length += 1;
}
object[] args = new object[length];
for (var i = 0; i < receiver.Parameters.Length; ++i)
{
Type t = receiver.Parameters[i];
Reader reader;
if (!readers.TryGetTypeValue(t, out reader))
{
return(false);
}
args[i] = reader(stream, t);
if (args[i] is Player)
{
if (!ReferenceEquals(args[i], stream.Player))
{
log.Error("RPC from {0} tried to use object for {1}", stream.Player, args[i]);
return(false);
}
}
}
if (receiver.RequiresInfoArgument)
{
RPCInfo info = new RPCInfo();
info.Caller = stream.Player;
info.Context = Context;
info.RemoteGameTime = stream.RemoteGameTime;
args[args.Length - 1] = info;
}
log.Info("Received {0}", receiver.Name);
if (receiver.ReturnsValue)
{
object result = receiver.Method.Invoke(receiver.Instance, args);
Network.ByteOutStream resultStream = new Network.ByteOutStream(128);
resultStream.WriteByte(HeaderBytes.RemoteProcedureCall);
resultStream.WriteBool(false);
resultStream.WriteInt(returnIndex);
if (result == null)
{
resultStream.WriteBool(false);
}
else
{
Writer writer;
Type t = result.GetType();
resultStream.WriteBool(true);
if (writers.TryGetTypeValue(t, out writer))
{
writer(resultStream, t, result);
}
}
stream.Player.Connection.Queue(resultStream, true);
}
else
{
receiver.Method.Invoke(receiver.Instance, args);
}
return(true);
}
public abstract void OnDataMessage(ByteInStream stream);
public override void OnDataMessage(Network.ByteInStream stream)
{
Context.Time.UpdateOffset(stream.RemoteGameTime);
Context.OnNetworkStream(stream);
}
public override void OnDataMessage(Network.ByteInStream stream)
{
Context.Time.Update();
Context.OnNetworkStream(stream);
}
internal abstract T ReadEventHeader(Network.ByteInStream stream);
protected override TEnum UnpackValue(Network.ByteInStream stream)
{
return((TEnum)Enum.ToObject(typeof(TEnum), stream.ReadInt()));
}
public abstract void Unpack(Network.ByteInStream stream);
public override void Unpack(SlimNet.Network.ByteInStream stream)
{
Message = stream.ReadString();
}