SceneSwitcher.cs

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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See LICENSE in the project root for license information.

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

namespace HoloToolkit.Examples.Prototyping
{
    public class SceneSwitcher : MonoBehaviour
    {
        public void NextScene()
        {
            int sceneCount = SceneManager.sceneCountInBuildSettings;

            for (int i = 0; i < sceneCount; ++i)
            {
                if (i < sceneCount - 1)
                {
                    if (SceneManager.GetActiveScene() == SceneManager.GetSceneByBuildIndex(i))
                    {
                        SceneManager.LoadScene(i + 1);
                        break;
                    }
                }
                else
                {
                    SceneManager.LoadScene(0);
                }
            }
        }

        public void PreviousScene()
        {
            int sceneCount = SceneManager.sceneCount;

            for (int i = 0; i < sceneCount; ++i)
            {
                if (i > 1)
                {
                    if (SceneManager.GetActiveScene() == SceneManager.GetSceneAt(i))
                    {
                        SceneManager.LoadScene(i - 1);
                        break;
                    }
                }
                else
                {
                    SceneManager.LoadScene(sceneCount - 1);
                }
            }
        }
    }
}