Can't access direct reference to method of a script in a different Object

Questions & Answers
1

I can not seem to access an Method associated to an Object in a Class in another Class, The Class provided blow is associated to a blank object on a new Scene and just prints TEST on the GUI BOX:

using UnityEngine;
using System.Collections;

public class Temp : MonoBehaviour, MultiPlayerLobbyListener
{

    public GUISkin guiSkin;
    private string _lobbyMessage = "TEST";
    void OnGUI()
    {
        GUI.skin = guiSkin;
        GUI.Box(new Rect(Screen.width * 0.25f, Screen.height * 0.4f, Screen.width * 0.5f, Screen.height * 0.5f), _lobbyMessage);
    }

    // Use this for initialization
    void Start()
    {
        MultiplayerController.Instance.SignInAndStartMPGame();
    }

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

    }

    public void SetLobbyStatusMessage(string message)
    {
        _lobbyMessage = message;
    }
}

The Class trying to call it, in which case the runtime for now always defaults to :

using UnityEngine;
using UnityEngine.SceneManagement;
using System.Collections;
using GooglePlayGames;
using GooglePlayGames.BasicApi.Multiplayer;
using System;

public class MultiplayerController : MonoBehaviour, RealTimeMultiplayerListener
{

    private uint minimumOpponents = 1;
    private uint maximumOpponents = 1;
    private uint gameVariation = 0;

    public Temp temp; /////REFERENCING HERE

    private static MultiplayerController _instance = null;

    private MultiplayerController()
    {
        PlayGamesPlatform.DebugLogEnabled = true;
        PlayGamesPlatform.Activate();
    }

    public static MultiplayerController Instance
    {
        get
        {
            if (_instance == null)
            {
                _instance = new MultiplayerController();
            }
            return _instance;
        }
    }

    public void SignInAndStartMPGame()
    {
        if (!PlayGamesPlatform.Instance.localUser.authenticated)
        {
            PlayGamesPlatform.Instance.localUser.Authenticate((bool success) =>
            {
                if (success)
                {
                    Debug.Log("We're signed in! Welcome " + PlayGamesPlatform.Instance.localUser.userName);
                    // We could start our game now
                    SceneManager.LoadScene("Main Menu");
                }
                else
                {
                    Debug.Log("Oh... we're not signed in.");
                    //SSceneManager.LoadScene("Main Menu", LoadSceneMode.Additive);
                    //temp.SetLobbyStatusMessage("Oh... we're not signed in.");
                    temp = GameObject.GetComponent<Temp>(temp);
                    if(temp==null) /////STILL NULL HERE
                    {
                        Debug.Log("TEMP IS FREAKING NULL");
                    } else
                    {
                        temp.SetLobbyStatusMessage("Oh... we're not signed in.");
                    }
                }
            });
        }
        else
        {
            Debug.Log("You're already signed in.");
            // We could also start our game now
        }
    }
}

The google play stuff is working perfectly fine and have already tested that, It is the actual referencing of the script that is not working, I am not too sure why. Any help would be much appreciated :slight_smile:

Thanks in Advanced

2

public static MultiplayerController Instance
{
get
{
if (_instance == null)
{
_instance = new MultiplayerController();
}
return _instance;
}
}

You can’t create things derived from MonoBehaviour directly like this. And instead of using the singleton pattern you’d create an empty gameobject in your scene and attach a MultiplayerController to it. The from your other class you’d do

// MultiplayerController.Instance.SignInAndStartMPGame();
GameObject.Find("ControllerObject").GetComponent<MultiplayerController>().SignInAndStartMPGame();