NetworkRPC

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class Networking : MonoBehaviour {

    public string ipAddress = "127.0.0.1";
    public int port = 25167;
    public int maxConnections = 10;

    //public GameObject GameController;

    //for chatting
    public List<string> chatLog = new List<string>();
    public string currentMessage = "";

    public string playername = "default";

    // Use this for initialization
    void Start () {
        Application.runInBackground = true;

    }

    // Update is called once per frame
    void Update () {
    }

    void OnGUI(){
        if (Network.peerType == NetworkPeerType.Disconnected) {
            //ip text box
            GUI.BeginGroup (new Rect (10, 10, 800, 600));
            GUI.Label(new Rect(0.0f, 0.0f, 100, 25), "IP: ");
            ipAddress = GUI.TextField(new Rect(40.0f, 0.0f, 100, 25), ipAddress);
            //port text box
            GUI.Label(new Rect(0.0f, 30.0f, 100, 25), "Port: ");
            string tempport;
            tempport = GUI.TextField(new Rect(40.0f, 30.0f, 100, 25), port.ToString());
            port = int.Parse(tempport);
            //player name text box
            GUI.Label(new Rect(0.0f, 60.0f, 100, 25), "Name: ");
            playername = GUI.TextField(new Rect(40.0f, 60.0f, 100, 25), playername);


            //connect button
            if (GUI.Button(new Rect(0.0f, 90.0f, 125, 25),"Connect")){
                print ("Connecting to " + ipAddress + " : " + port.ToString());
                Network.Connect(ipAddress, port);
                StartCoroutine (SendJoinMessage ());
                //StartCoroutine(OnConnect ());
            }
            //host server button
            if (GUI.Button(new Rect(0.0f, 120.0f, 125, 25),"Host")){
                print ("Hosting server on " + ipAddress + " : " + port.ToString());
                Network.InitializeServer(maxConnections, port, false);
                //StartCoroutine(OnConnect ());
            }
            GUI.EndGroup ();
        }
        else{
            GUI.BeginGroup (new Rect (10, 10, 800, 600));
            //disconnect button
            if (GUI.Button (new Rect(0.0f, 0.0f, 125, 25), "Disconnect")){
                Network.Disconnect(200);
            }
            //display server info
            GUI.Label(new Rect(0.0f, 30.0f, 100, 25), "IP: " + ipAddress);
            GUI.Label(new Rect(0.0f, 50.0f, 100, 25), "Port: " + port);
            GUI.Label(new Rect(0.0f, 70.0f, 200, 25), "Players: " + (Network.connections.Length + 1));

            //chat input
            GUI.SetNextControlName("chatfield");
            currentMessage = GUI.TextField(new Rect(0.0f, Screen.height - 45, 200, 25), currentMessage);

            if (GUI.Button(new Rect(205, Screen.height - 45, 50, 25), "Send")){
                if (currentMessage.Length > 0){
                    string temp = "[" + playername + "]: " + currentMessage;
                    networkView.RPC ("Chat", RPCMode.All, temp);
                    currentMessage = "";
                }
            }
            if (Event.current.isKey && Event.current.keyCode == KeyCode.Return){
                if (GUI.GetNameOfFocusedControl() == "chatfield"){
                    if (currentMessage.Length > 0){
                        string temp = "[" + playername + "]: " + currentMessage;
                        networkView.RPC ("Chat", RPCMode.All, temp);
                        currentMessage = "";
                    }
                }
                else{
                    GUI.FocusControl("chatfield");
                }

            }
            //chat log
            int chatindex = 0;
            foreach(string msg in chatLog){
                ++chatindex;
                GUI.Label(new Rect(0.0f, Screen.height - 65 - 10 * (chatLog.Count - chatindex), Screen.width, 25), msg);
            }

            GUI.EndGroup ();
        }
    }
    void OnPlayerDisconnected(NetworkPlayer player){
        Network.RemoveRPCs (player);
        Network.DestroyPlayerObjects (player);
    }

    [RPC]
    void Chat(string message){
        chatLog.Add (message);
    }

    IEnumerator SendJoinMessage(){
        yield return new WaitForSeconds (1);
        if (Network.peerType == NetworkPeerType.Connecting) {
            StartCoroutine (SendJoinMessage ());
        }
        else {
            networkView.RPC ("Chat", RPCMode.All, playername + " has joined the server");
        }
    }

}