Make my GUIButton appear as a result of a function?

Questions & Answers
1

I’m trying to put a GUIButton that only appear when the GameOver() function is called after the player dies, which when pressed will reset the high score to 0; by changing the PlayerPrefs value. I can get it so that the button apepars and works, but it is there at the start. It doesn’t appear at Gameover like I want. Here’s what I’ve got

using UnityEngine;
using System.Collections;

public class GameController : MonoBehaviour
{
    private bool gameOver;
    private bool restart;
	private bool canReset;
    private int score;

    void Start ()
    {
        gameOver = false;
        restart = false;
        score = 0;
	    canReset = false;
        StartCoroutine (SpawnWaves ());
    }

    void Update ()
    {
        if (restart)
        {
            if (Input.GetKeyDown (KeyCode.R))
            {
                Application.LoadLevel (Application.loadedLevel);
            }
        }
		if(canReset) 
		{
			OnGUI ();
		}
    }

    IEnumerator SpawnWaves ()
    {
            if (gameOver)
            {
                restart = true;
                break;
            }
    }

    public void GameOver ()
    {
        gameOver = true;
	    canReset = true; 
    }

	void OnGUI() 
	{
		if(GUI.Button(new Rect(Screen.width / 2 - 100, Screen.height / 2 - 50, 200, 50), "Reset High Score"))
		{
			PlayerPrefs.SetInt("HighScore", 0);
		}
	}
}

If my code looks a little off, that is because I removed a bunch of stuff for the sake of shrinking it down for this question. I think I need to change something in OnGUI() but I don’t know what. Any suggestions? Thanks guys!

2

Add the following to your OnGUI

    void OnGUI (){
        // Stuff to always be onscreen
        if(gameOver){
            // Stuff to only appear at game over.
        }
    }

You also shouldn’t call OnGUI yourself (line 31). OnGUI is automatically called as needed by Unity. Calling it yourself could cause unexpected results