I need a GUI button to disappear. Help please

Unity Engine
1

Hey there,

I wonder if there is anyway I can make a GUI button to disappear.

I have a menu with 6 of them, and each one will show you some options on the same screen of the menu, so I wonder if when I click on one of the main buttons, the options from the other one I pressed earlier can disappear?

I have tried using a bool, but it did not work.

Here is what I have:

using UnityEngine;
using System.Collections;

public class Options : MonoBehaviour {

    public Texture MainMenuTexture;
    public bool sound = false;
    public bool highScores = false;
    public bool store = false;
    public bool gallery = false;
    public bool invite = false;
    public bool credits = false;

    void OnGUI()
    {
        GUI.DrawTexture(new Rect(0, 0, Screen.width, Screen.height), MainMenuTexture);

            if (GUI.Button(new Rect(0, Screen.height * .17f, Screen.width * .2f, Screen.height * .1f), "SOUND"))
            {
                sound = true;
            }
            if (GUI.Button(new Rect(0, Screen.height * .30f, Screen.width * .2f, Screen.height * .1f), "HIGH SCORES"))
            {
                highScores = true;
            }
            if (GUI.Button(new Rect(0, Screen.height * .43f, Screen.width * .2f, Screen.height * .1f), "STORE"))
            {
                store = true;
            }
            if (GUI.Button(new Rect(0, Screen.height * .56f, Screen.width * .2f, Screen.height * .1f), "GALLERY"))
            {
                gallery = true;
            }
            if (GUI.Button(new Rect(0, Screen.height * .69f, Screen.width * .2f, Screen.height * .1f), "INVITE"))
            {
                invite = true;
            }
            if (GUI.Button(new Rect(0, Screen.height * .82f, Screen.width * .2f, Screen.height * .1f), "CREDITS"))
            {
                credits = true;
            }

        }

        if (sound)
        {
            highScores = false;
            store = false;
            gallery = false;
            invite = false;
            credits = false;
                if (GUI.Button(new Rect(Screen.width * .3f, Screen.height * .17f, Screen.width * .3f, Screen.height * .1f), "YES"))
                {

                }
                if (GUI.Button(new Rect(Screen.width * .7f, Screen.height * .17f, Screen.width * .3f, Screen.height * .1f), "NO"))
                {

                }
        }
        if (highScores)
        {
            sound = false;
            store = false;
            gallery = false;
            invite = false;
            credits = false;
        }
    }
}

Thanks!

2

use an enum to decide which button it should render.
ex:

public enum ScreenState
    {
        Main,
        Customize,
        Options
    }

    public ScreenState CurrentState;

    void OnGUI()
    {
        switch (CurrentState)
        {
            case ScreenState.Main:
                if (GUI.Button(new Rect(), "Start Game"))
                {
                    //...
                }
                if (GUI.Button(new Rect(), "Customize Character"))
                {
                    //...
                }
                if (GUI.Button(new Rect(), "Options"))
                {
                    //...
                }
                break;
            case ScreenState.Customize:
                if (GUI.Button(new Rect(), "Change appearance"))
                {
                    //...
                }
                if (GUI.Button(new Rect(), "Back"))
                {
                    //...
                }
                break;
            case ScreenState.Options:
                if (GUI.Button(new Rect(), "FOV"))
                {
                    //...
                }
                if (GUI.Button(new Rect(), "Pointer Speed"))
                {
                    //...
                }
                if (GUI.Button(new Rect(), "Back"))
                {
                    //...
                }
                break;
        }
    }