private static void MessageReceived(Message message)
 {
     if (message is ChatMessage)
         Console.WriteLine(((ChatMessage)message).Text);
     else if (message is GameOverMessage)
         Console.WriteLine("Game Over, Player " + ((GameOverMessage)message).Winner +
             " has won with Points=" + ((GameOverMessage)message).Points);
 }
        public static void AddMessage(string username, string text)
        {
            MongoDatabase db = new MongoClient("mongodb://*****:*****@ds061548.mongolab.com:61548/chat-db")
                .GetServer()
                .GetDatabase("chat-db");

            var messagesCollection = db.GetCollection<Message>("messages");

            var message = new Message { Date = DateTime.Now, Username = username, Text = text };

            messagesCollection.Insert(message);
        }