有没有办法让音乐在某些场景中无缝播放而在其他场景中统一停顿？

Question

我正在制作一个游戏，我希望在某些场景中无缝地播放音乐，并在我离开这些场景时让音乐暂停，并在我回到它们时自动恢复。

我已经尝试制作我想要播放音乐的场景的列表（数组）并检查当前场景的名称以查看它是否在列表中。但是当我键入时它不起作用。包含检查答案。

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

public class DontDestroy : MonoBehaviour {
void Awake(){
        print ("WoW");
        GameObject[] objs = GameObject.FindGameObjectsWithTag 
("music");
        if (objs.Length > 1) 
        {
         Destroy (this.gameObject);
        }
        DontDestroyOnLoad (this.gameObject);
     }      
}

我用它来在切换场景时保持音乐播放，而不是在我返回原始场景时让它重复。我如何希望它在一定数量的场景中工作。

Answer 1

首先我会使用单例模式，而不是一直使用Find

比注册一个监听器到SceneManager.sceneLoaded

最后我只需要一个场景列表来检查加载的场景是否应该播放音乐

public class PlayMusik : MonoBehaviour
{
    private static PlayMusik Singleton;

    // Here you reference the secenes where music should be playing
    public List<Scene> scenesWithMusik;

    // Flag to control of music is playing
    private bool isPlayingMusik;

    private void Awake ()
    {
        if(Singleton)
        {
            Debug.Log("Already another PlayMusik in Scene.", Singleton);
            Debug.Log("Destroying this one", this);

            Destroy(gameObject);
            return;
        }

        Singleton = this;
        DontDestroyOnLoad(gameObject);

        // Make sure listener is only added once
        SceneManager.sceneLoaded -= OnSceneLoaded;
        SceneManager.sceneLoaded += OnSceneLoaded;
    }

    private void OnDestroy ()
    {
        // Cleanup listener
        SceneManager.sceneLoaded -= OnSceneLoaded;
    }

    // Called when a scene is loaded
    void OnSceneLoaded(Scene scene, LoadSceneMode mode)
    {
        Debug.Log("OnSceneLoaded: " + scene.name);
        Debug.Log(mode);

        // here you handle what should happen with the music e.g.
        // if the loaded scene is in scenesWithMusic enable music
        // (What should happen if you load a scene additive is up to you)
        if(scenesWithMusik.Contains(scene))
        {
            if(!isPlayingMusik)
            {
                //Todo: Enable Music here!

                isPlayingMusik = true;
            }
        }
        else
        {
            if(isPlayingMusik)
            {
                //Todo: Stop Music here!

                isPlayingMusik = false;
            }  
        }
    }
}