public static void ReceiveCallback(IAsyncResult ar)
{
try
{
// A Socket to handle remote host communication.
var handler = (Socket)ar.AsyncState;
// The number of bytes received.
var bytesRead = handler.EndReceive(ar);
// Received message
var content = Encoding.Unicode.GetString(buffer, 0, bytesRead);
if (bytesRead > 0)
{
var message = new Message(content);
if (message.Turn == -1) // New game
{
Console.WriteLine("New player has connected into {0}", message.RoomId);
var room = rooms.GetOrAdd(message.RoomId, new Room());
// Check if room is full or not
if (room.Count < 2)
{
room.Add(handler, message.Name);
// Send to the client the player turn
if (room.Count == 2)
{
int mapId = rand.Next(2);
for (int index = 0; index < room.Count; index++)
SendMessage(room.GetSocket(index), new Message {
Turn = index,
Name=room.GetName(index ^ 1),
Col = mapId
});
}
}
else
{
// The room is full
message = new Message
{
Turn = -3
};
SendMessage(handler, message);
}
rooms.AddOrUpdate(message.RoomId, room, (key, existing) =>
{
return room;
});
}
else if (message.Turn == -2) // Quit game
{
var room = rooms.GetOrAdd(message.RoomId, new Room());
if (room != null)
{
message = new Message
{
Turn = -2
};
SendMessage(handler, message);
for (int index = 0; index < room.Count; index++)
SendMessage(room.GetSocket(index), message);
room.Clear();
}
rooms.AddOrUpdate(message.RoomId, room, (key, existing) =>
{
return room;
});
}
else
{
var room = rooms.GetOrAdd(message.RoomId, new Room());
if (room.Count == 2)
{
// Send the message to the other
SendMessage(room.GetSocket(message.Turn ^ 1), message);
}
rooms.AddOrUpdate(message.RoomId, room, (key, existing) =>
{
return room;
});
}
}
// Continues to asynchronously receive data
handler.BeginReceive(
buffer,
0,
buffer.Length,
SocketFlags.None,
new AsyncCallback(ReceiveCallback),
handler
);
}
catch (Exception e)
{
Console.WriteLine("ERROR: {0}", e.Message);
}
}
public static void SendMessage(Socket handler, Message message)
{
try
{
// Prepare the reply message
var byteData = Encoding.Unicode.GetBytes(message.ToJSON());
handler.BeginSend(byteData, 0, byteData.Length, 0, new AsyncCallback(SendCallback), handler);
}
catch (Exception e)
{
Console.WriteLine("ERROR: {0}", e.Message);
}
}
