SimUL/Assets/LevelChanger.cs

using System;
using UnityEngine;
using UnityEngine.SceneManagement;

public class LevelChanger : MonoBehaviour
{
    [SerializeField]
    public Animator _animator;
    private const string FADE_OUT = "FadeOut";
    private const string FADE_IN = "FadeIn";

    private string _sceneToLoad;
    private Action _onSceneLoaded;

    private void Start()
    {
        UnityEngine.SceneManagement.SceneManager.sceneLoaded += SceneLoaded;
    }

    private void SceneLoaded(Scene arg0, LoadSceneMode arg1)
    {
        _animator.SetTrigger(FADE_IN);
    }

    public void FadeIn(Action onSceneLoaded)
    {
        _onSceneLoaded = onSceneLoaded;
        _animator.SetTrigger(FADE_IN);
    }

    public void FadeToLevel(string name, Action onSceneLoaded)
    {
        _sceneToLoad = name;
        _onSceneLoaded = onSceneLoaded;
        _animator.SetTrigger(FADE_OUT);
    }

    public void OnFadeInComplete()
    {
        _onSceneLoaded.Invoke();
    }
    public void OnFadeOutComplete()
    {
        UnityEngine.SceneManagement.SceneManager.LoadScene(_sceneToLoad);
    }
}