private void Update()
{
while (_eventsToHandle.TryDequeue(out var @event))
{
switch (@event.Type)
{
case EventType.Connect:
OnConnected(@event.Peer);
break;
case EventType.Disconnect:
case EventType.Timeout:
OnDisconnected(@event.Peer);
break;
case EventType.Receive:
unsafe
{
_receivedUnreliable++;
var packet = @event.Packet;
var span = new ReadOnlySpan <byte>(packet.Data.ToPointer(), packet.Length);
_buffer.FromSpan(ref span, packet.Length);
_detector.ReadHeaderOfPeerId((ushort)@event.Peer.ID, _buffer);
_buffer.Clear();
packet.Dispose();
break;
}
}
}
_detector.ExecuteLostPackets();
}
private unsafe void ExecuteState(IntPtr state)
{
PackedDataFlags flags;
int cursor;
if (_firstPacket)
{
_firstPacket = false;
flags = PackedDataFlags.Commands | PackedDataFlags.CreatedEntities;
cursor = 0;
}
else
{
flags = (PackedDataFlags)Marshal.ReadByte(state);
cursor = 1;
}
#region commands
if ((flags & PackedDataFlags.Commands) == PackedDataFlags.Commands)
{
var commandsHeaderSpan = new ReadOnlySpan <ushort>(IntPtr.Add(state, cursor).ToPointer(), 2);
var commandCount = commandsHeaderSpan[0];
var commandLength = commandsHeaderSpan[1];
cursor += 4;
if (commandCount > 0)
{
var dataSpan = new ReadOnlySpan <byte>(IntPtr.Add(state, cursor).ToPointer(),
commandLength);
_fromServer.Clear();
_fromServer.FromSpan(ref dataSpan, commandLength);
ClientCommandExecutor.Execute(_handler, _fromServer, commandCount);
cursor += commandLength;
}
}
#endregion
#region created entities
if ((flags & PackedDataFlags.CreatedEntities) == PackedDataFlags.CreatedEntities)
{
var createdEntitiesHeaderSpan =
new ReadOnlySpan <ushort>(IntPtr.Add(state, cursor).ToPointer(), 2);
var createdEntitiesCount = createdEntitiesHeaderSpan[0];
var createdEntitiesLength = createdEntitiesHeaderSpan[1];
cursor += 4;
if (createdEntitiesCount > 0)
{
var dataSpan = new ReadOnlySpan <byte>(IntPtr.Add(state, cursor).ToPointer(),
createdEntitiesLength);
_fromServer.Clear();
_fromServer.FromSpan(ref dataSpan, createdEntitiesLength);
UnpackEntityUtility.CreateEntities(_game, _fromServer, createdEntitiesCount);
cursor += createdEntitiesLength;
}
}
#endregion
#region removed entities
if ((flags & PackedDataFlags.RemovedEntities) == PackedDataFlags.RemovedEntities)
{
var removedEntitiesHeaderSpan =
new ReadOnlySpan <ushort>(IntPtr.Add(state, cursor).ToPointer(), 2);
var removedEntitiesCount = removedEntitiesHeaderSpan[0];
var removedEntitiesLength = removedEntitiesHeaderSpan[1];
cursor += 4;
if (removedEntitiesCount > 0)
{
var dataSpan = new ReadOnlySpan <byte>(IntPtr.Add(state, cursor).ToPointer(),
removedEntitiesLength);
_fromServer.Clear();
_fromServer.FromSpan(ref dataSpan, removedEntitiesLength);
UnpackEntityUtility.RemoveEntities(_game, _fromServer, removedEntitiesCount);
cursor += removedEntitiesLength;
}
}
#endregion
#region removed components
if ((flags & PackedDataFlags.RemovedComponents) == PackedDataFlags.RemovedComponents)
{
var removedComponentsHeaderSpan =
new ReadOnlySpan <ushort>(IntPtr.Add(state, cursor).ToPointer(), 2);
var removedComponentsCount = removedComponentsHeaderSpan[0];
var removedComponentsLength = removedComponentsHeaderSpan[1];
cursor += 4;
if (removedComponentsCount > 0)
{
var dataSpan = new ReadOnlySpan <byte>(IntPtr.Add(state, cursor).ToPointer(),
removedComponentsLength);
_fromServer.Clear();
_fromServer.FromSpan(ref dataSpan, removedComponentsLength);
UnpackEntityUtility.RemoveComponents(_game, _fromServer, removedComponentsCount);
cursor += removedComponentsLength;
}
}
#endregion
#region changed components
if ((flags & PackedDataFlags.ChangedComponents) == PackedDataFlags.ChangedComponents)
{
var changedComponentsHeaderSpan =
new ReadOnlySpan <ushort>(IntPtr.Add(state, cursor).ToPointer(), 2);
var changedComponentsCount = changedComponentsHeaderSpan[0];
var changedComponentsLength = changedComponentsHeaderSpan[1];
cursor += 4;
if (changedComponentsCount > 0)
{
var dataSpan = new ReadOnlySpan <byte>(IntPtr.Add(state, cursor).ToPointer(),
changedComponentsLength);
_fromServer.Clear();
_fromServer.FromSpan(ref dataSpan, changedComponentsLength);
UnpackEntityUtility.ChangeComponents(_game, _fromServer, changedComponentsCount);
}
}
#endregion
Marshal.FreeHGlobal(state);
}
public void Execute()
{
while (_responses.TryDequeue(out var response))
{
switch (response)
{
case NetworkThreadResponse.StartSuccess:
Logger.I.Log(this, "Server is working");
State = ServerState.Working;
break;
case NetworkThreadResponse.StartFailure:
Logger.I.Log(this, "Server start failed");
State = ServerState.Stopped;
break;
case NetworkThreadResponse.Stoppoed:
Logger.I.Log(this, "Server is stopped");
ClearBuffers();
while (_eventsToHandle.TryDequeue(out _))
{
}
State = ServerState.Stopped;
break;
}
}
if (State != ServerState.Working)
{
return;
}
while (_eventsToHandle.TryDequeue(out var @event))
{
unsafe
{
switch (@event.EventType)
{
case EventType.Connect:
_handler.OnClientConnected(@event.Peer);
break;
case EventType.Disconnect:
_handler.OnClientDisconnected(@event.Peer);
break;
case EventType.Receive:
_currentPeerId = (ushort)@event.Peer.ID;
_handler.CurrentClientId = _currentPeerId;
var e = _game.GetEntityWithConnection(_currentPeerId);
if (e == null)
{
Marshal.FreeHGlobal(@event.Data);
break;
}
var headerSpan = new ReadOnlySpan <ushort>(@event.Data.ToPointer(), 2);
var commandCount = headerSpan[0];
var commandLength = headerSpan[1];
if (commandCount > 0)
{
var commandsSpan =
new ReadOnlySpan <byte>(IntPtr.Add(@event.Data, 4).ToPointer(), commandLength);
_fromClients.Clear();
_fromClients.FromSpan(ref commandsSpan, commandLength);
ServerCommandExecutor.Execute(_handler, _fromClients, commandCount);
}
Marshal.FreeHGlobal(@event.Data);
_currentPeerId = ushort.MaxValue;
break;
case EventType.Timeout:
_handler.OnClientDisconnected(@event.Peer);
break;
}
}
}
}