using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;

namespace UltimateWater.Samples
{
	public class Walkthrough : MonoBehaviour
	{
		[SerializeField]
		private List<string> _Scenes;

		private int _Current;

		public void Previous()
		{
			Unload(_Current);
			_Current--;
			if (_Current < 0)
			{
				_Current = _Scenes.Count - 1;
			}
			Load(_Current);
		}

		public void Next()
		{
			Unload(_Current);
			_Current++;
			if (_Current >= _Scenes.Count)
			{
				_Current = 0;
			}
			Load(_Current);
		}

		private void Awake()
		{
			_Current = 0;
			Load(_Current);
		}

		private void Load(int i)
		{
			SceneManager.LoadScene(_Scenes[i], LoadSceneMode.Additive);
		}

		private void Unload(int i)
		{
			SceneManager.UnloadScene(_Scenes[i]);
		}
	}
}