public sealed class ConnectionManager
    {
        TcpListener serverSocket;
        public Hashtable clientsList;
        int idCounter;

        private static volatile ConnectionManager instance;
        private static object syncRoot = new Object();


        public static ConnectionManager Instance
        {
            get
            {
                if (instance == null)
                {
                    lock (syncRoot)
                    {
                        if (instance == null)
                            instance = new ConnectionManager();
                    }
                }

                return instance;
            }
        }


        private ConnectionManager()
        {
            Int32 port = 8888;
            clientsList = new Hashtable();
            IPAddress localAddr = IPAddress.Parse("127.0.0.1");
            serverSocket = new TcpListener(localAddr, port);


            serverSocket.Start();
            Console.WriteLine("Server started listening...");
            idCounter = 0;
            while(true)
            {
                TcpClient clientSocket = serverSocket.AcceptTcpClient();
                Console.WriteLine("New connection accepted with id " + idCounter);
                HandleClient hc = new HandleClient(idCounter);
                clientsList.Add(idCounter++, clientSocket);
                hc.handle();

            }


        }




        public void SendMessage<T>(Message<T> m, int connectionId)
        {


            NetworkStream clientStream = ((TcpClient)clientsList[connectionId]).GetStream();
            StreamWriter sw = new StreamWriter(clientStream);
            var js = new JsonSerializer();
            js.Serialize(sw, m);
            sw.Flush();
            clientStream.Flush();

        }

        public void foo()
        {
            Console.WriteLine("korte");
        }








    }

    class HandleClient
    {
        int connectionId;
        public HandleClient(int cId)
        {
            this.connectionId = cId;

        }


        public void handle()
        {
            Thread cThread = new Thread(start);
            cThread.Start();
        }

        private void start()
        {

            Console.WriteLine("Thread started for client " + connectionId);
            User user = new User()
            {
                connectionId = connectionId
            };
            Game.Instance.AddUser(user);

            /*clientSocket.Close();
            clientsList.Remove(connectionId);
            Console.WriteLine("Thread stopped for client " + connectionId);
            Thread.CurrentThread.Abort();*/




        }


    }