OnMouseEnter/Exit not working when pressing button to advance scene

Questions & Answers
1

I am writing code for a GUI button, and when both the mouse is over the button (OnMouseEnter/Exit is what I am using) and the mouse is clicked (Input.GetMouseButton(0)) I want to load the next scene. The click part is giving me no trouble, but it is the Enter/Exit part that is not working. I would like to know if I am doing something wrong, or some other way to do both in one (as this is the only way I could find to complete the task). Any help is appreciated!

Code is in C#

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

public class Level1Button : MonoBehaviour {

	private bool mouseHover;

	void Start()
	{
		mouseHover = false;
	}

	void Update ()
	{
		if (mouseHover && Input.GetMouseButton(0))
			SceneManager.LoadScene ("Level 1");
	}

	void OnMouseEnter()
	{
		mouseHover = true;
	}

	void OnMouseExit()
	{
		mouseHover = false;
	}
}
2

Is this for the UnityEngine.UI system or GUI.Button rect or is it just a mesh you’re applying this script to?

Also there’s nothing else really wrong with this script, it should work fine if this is for a 3D text mesh or mesh in particular.

SceneManager.LoadScene(“Level 1”) should maybe be:
SceneManager.LoadScene(“Level 1”, LoadSceneMode.Single);
or that’s probably not it because it would default to that anyway.

Hmm did you remember to add the scene you are loading to into the File>Build Settings list?

3

I have discovered a very simple way to use a button to activate a scene change. It uses IPointerDownHandler. I will post the code below for anyone else who would like it.

Place the code on the GUI.Button you would like to use

Code is in C#

using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.EventSystems;

public class Level1Button : MonoBehaviour, IPointerDownHandler //Make sure that you add this after MonoBehaviour or this WILL NOT work
{
	public void OnPointerDown (PointerEventData eventData)
	{
		if (Input.GetMouseButtonDown (0)) //0 can be changed with 1 or 2, 0 is left click, 1 is right click, 2 is middle click
			SceneManager.LoadScene ("Level 1");
	}
}