MenuSystem.cs

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class MenuSystem : MonoBehaviour {
	public GameObject menuCanvas;
	private Transform SubtitleTrue;
	private Transform SubtitleFalse;
	
	// Use this for initialization
	void Start () {
		Button startBtn = menuCanvas.transform.Find ("Main Menu").Find ("Start Game").GetComponent<Button> ();
		Button optionBtn = menuCanvas.transform.Find ("Main Menu").Find ("Options").GetComponent<Button> ();
		Button optionStartBtn = menuCanvas.transform.Find ("Options Menu").Find ("Start Game").GetComponent<Button> ();
		GameObject MainMenu = GameObject.Find("Main Menu");
		GameObject OptionsMenu = GameObject.Find("Options Menu");
		OptionsMenu.SetActive (false);
		
		
		/* START BUTTON */
		startBtn.onClick.AddListener (() => {
			
			Debug.Log ("Start Game");
			
			// Remove the start button
			MainMenu.SetActive(false);
			
			// Start the game
		});// start button
		
		optionBtn.onClick.AddListener(() => {
			
			Debug.Log ("Go to Options");
			
			// Remove the start button
			MainMenu.SetActive(false);
			
			// go to options
			menuCanvas.SetActive(false);
			// Options Fades In
			
			OptionsMenu.SetActive (true);
			
			
		});// options start 
		
		
		optionStartBtn.onClick.AddListener (() => {
			
			Debug.Log ("Options Start");
			
			OptionsMenu.SetActive(false);
			
			// Start game from options
			
		});// options start button
		
		
		
		/* OPTIONS MENU */
		SubtitleTrue = OptionsMenu.transform.Find ("SubtitleTrue");
		SubtitleFalse = OptionsMenu.transform.Find ("SubtitleFalse");
		SubtitleFalse.GetComponent<Image>().enabled = false;
		
		SubtitleTrue.GetComponent<Button> ().onClick.AddListener (() => {
			
			// Start fading towards black.
			Debug.Log ("Subtitles On");
			SubtitleTrue.GetComponent<Image>().enabled = true;
			SubtitleFalse.GetComponent<Image>().enabled = false;
			
		});
		
		SubtitleFalse.GetComponent<Button> ().onClick.AddListener (() => {
			
			Debug.Log ("Subtitles Off");
			SubtitleFalse.GetComponent<Image>().enabled = true;
			SubtitleTrue.GetComponent<Image>().enabled = false;
			 
		});
		
		
	}
	
	void Update ()
	{
		
	}
}