void Start() { Application.runInBackground = true; // Initialization to open socket on port specified by socketId. NetworkTransport.Init(); // init transport using default values ConnectionConfig config = new ConnectionConfig(); // create connection config + channel channelId = config.AddChannel(QosType.Reliable); HostTopology topology = new HostTopology(config, maxConnections); // create topology based on connection config socketId = NetworkTransport.AddHost(topology, socketPort); // create host based on topology, listening on port 8888 Debug.Log("Socket Open. SocketId is: " + socketId); // print socket ID to console userList = new Dictionary <int, HashSet <MType> >(); revUserList = new Dictionary <MType, HashSet <int> >(); try { foreach (MType value in MType.GetValues(typeof(MType))) // initialize each message type list { revUserList.Add(value, new HashSet <int>()); } } catch (ArgumentException) { Debug.Log("Tried to add duplicate message type to revUserList!"); } }