Make music continue playing through scenes

Question

Hi! I have an audio source attached to an object in my main menu scene, and i wanted it's music to keep playing even when you are in SOME other scenes. For an example:

The main song is playing. The player is in the Main Menu scene and the music is at 1:43. The player clicks on Select Map and goes to the Map Selection scene. Then, the music continues from 1:43 until it finishes. As it has the loop, it plays again and again.

I don't want the song to play in all the scenes, just some specific. Do someone know how to do this? I don't have any idea of how to make this...

Answer 1

Best Answer

Answer by Denvery · Oct 21, 2016 at 09:06 PM

Let's try this.

Create GameObject and assign any custom tag. For example, create tag "Music" and assign. Attach script to this game object and make DontDestroyOnLoad:

 using UnityEngine;
 
 public class MusicClass : MonoBehaviour
 {
     private AudioSource _audioSource;
     private void Awake()
     {
         DontDestroyOnLoad(transform.gameObject);
         _audioSource = GetComponent<AudioSource>();
     }
 
     public void PlayMusic()
     {
         if (_audioSource.isPlaying) return;
         _audioSource.Play();
     }
 
     public void StopMusic()
     {
         _audioSource.Stop();
     }
 }

Attach your audio source to this object.

From scenes, where you want to play music, call method:

 GameObject.FindGameObjectWithTag("Music").GetComponent<MusicClass>().PlayMusic();

From scenes, where you don't want to play music, call method:

 GameObject.FindGameObjectWithTag("Music").GetComponent<MusicClass>().StopMusic();

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LawnDowe · Mar 03, 2020 at 07:53 AM 0

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This worked for me, but when I went back to one of the scenes, it played the music again over the first time it played, and this happened whenever I went into that menu. And I doing something wrong?

john601_unity · Dec 14, 2020 at 07:12 PM 0

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I have no idea how to call the method. Im still very new too unity and coding as a whole and I am very confused.

darkwindgame2020 · Dec 24, 2020 at 04:56 PM 0

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Thank you So Much its working very well.

kimn_unity · Jan 18, 2021 at 03:06 PM 0

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this doesn't work with the audio source with the loop true though

NuffuruDevelopment · Feb 22, 2021 at 01:49 PM 5

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I would change it to this, because this way if you go back to the scene where the music object was placed it won't make another music object.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class Music : MonoBehaviour
 {
     private AudioSource _audioSource;
     private GameObject[] other;
     private bool NotFirst = false;
     private void Awake()
     {
         other = GameObject.FindGameObjectsWithTag("Music");
 
         foreach (GameObject oneOther in other)
         {
             if (oneOther.scene.buildIndex == -1)
             {
                 NotFirst = true;
             }
         }
 
         if (NotFirst == true)
         {
             Destroy(gameObject);
         }
         DontDestroyOnLoad(transform.gameObject);
         _audioSource = GetComponent<AudioSource>();
     }
 
     public void PlayMusic()
     {
         if (_audioSource.isPlaying) return;
         _audioSource.Play();
     }
 
     public void StopMusic()
     {
         _audioSource.Stop();
     }
 }

RonaltrixJGachet NuffuruDevelopment · Apr 24, 2021 at 12:21 AM 0

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Hello, I have tried using your codes but every time I go back to the scene where I created the base game object, the game object multiplies.

Thanks you

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Answer 2

First thread I found when looking for a solution to this problem, so I'll add to this thread.

Here is a working solution that avoids the use of singletons, allowing you to add the script to multiple objects in the scene and tweak the behaviour via the inspector:

 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.SceneManagement;
 
 /// <summary>
 /// Attach this component to objects that you want to keep alive (e.g. theme songs) in certain scene transitions. 
 /// For reusability, this component uses the scene names as strings to decide whether it survives or not after a scene is loaded 
 /// </summary>
 public class DontDestroyOnSelectedScenes : MonoBehaviour
 {
     [Tooltip("Names of the scenes this object should stay alive in when transitioning into")]
     public List<string> sceneNames;
 
     [Tooltip("A unique string identifier for this object, must be shared across scenes to work correctly")]
     public string instanceName;
 
     // for singleton-like behaviour: we need the first object created to check for other objects and delete them in the scene during a transition
     // since Awake() callback preceded OnSceneLoaded(), place initialization code in Start()
     private void Start()
     {
         DontDestroyOnLoad(this.gameObject);
 
         // subscribe to the scene load callback
         SceneManager.sceneLoaded += OnSceneLoaded;
     }
 
     void OnSceneLoaded(Scene scene, LoadSceneMode mode)
     {
         // delete any potential duplicates that might be in the scene already, keeping only this one 
         CheckForDuplicateInstances();
 
         // check if this object should be deleted based on the input scene names given 
         CheckIfSceneInList();
     }
 
     void CheckForDuplicateInstances()
     {
         // cache all objects containing this component
         DontDestroyOnSelectedScenes[] collection = FindObjectsOfType<DontDestroyOnSelectedScenes>();
 
         // iterate through the objects with this component, deleting those with matching identifiers
         foreach (DontDestroyOnSelectedScenes obj in collection)
         {
             if(obj != this) // avoid deleting the object running this check
             {
                 if (obj.instanceName == instanceName)
                 {
                     Debug.Log("Duplicate object in loaded scene, deleting now...");
                     DestroyImmediate(obj.gameObject);
                 }
             }
         }
     }
 
     void CheckIfSceneInList()
     {
         // check what scene we are in and compare it to the list of strings 
         string currentScene = SceneManager.GetActiveScene().name;
 
         if (sceneNames.Contains(currentScene))
         {
             // keep the object alive 
         }
         else
         {
             // unsubscribe to the scene load callback
             SceneManager.sceneLoaded -= OnSceneLoaded;

             DestroyImmediate(this.gameObject);
         }
     }
 }

Just add this script as if it were a component to the parent object (e.g. in the image, the empty game object carrying all the audio sources: "Audio") and write down the name of the scenes it should survive in, then give it a unique string identifier relative to all other scripts in the scene using this component. alt text

Answer 3

Answer by elvirais · Oct 23, 2016 at 09:18 PM

This works for me, latest version of unity: (C# code) (I also found this code somewhere on this forum :)

 using UnityEngine;
 using System.Collections;
 
 public class GameMusicPlayer : MonoBehaviour
 {
 
     private static GameMusicPlayer instance = null;
     public static GameMusicPlayer Instance
     {
         get { return instance; }
     }
     void Awake()
     {
         if (instance != null && instance != this) {
             Destroy(this.gameObject);
             return;
         } else {
             instance = this;
         }
         DontDestroyOnLoad(this.gameObject);
     }
     // any other methods you need

}

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VinnyInTheLab · Sep 10, 2018 at 03:16 AM 0

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This code works for me as well, however, how to I stop the music from playing when entering a scene where I don't want the music to play?

elvirais · Jan 18, 2021 at 04:29 PM 0

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To stop the music in the new scene, you'll need a link to the gameobject. Since it comes over from another scene, I used a GameObject.Find or .FindWithTag function to get the object:

https://docs.unity3d.com/ScriptReference/GameObject.html

Answer 4

Answer by hexagonius · Oct 21, 2016 at 09:06 PM

Have a look at this post:

http://answers.unity3d.com/questions/11314/audio-or-music-to-continue-playing-between-scene-c.html

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Zitoox · Oct 22, 2016 at 03:19 PM -1

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These two answers have outdated scripts.

Answer 5

Answer by nathanthesnooper · Oct 23, 2016 at 11:15 PM

This should work. Remember you can always save the Time Elapsed in a PlayerPrefs alternatively.

 void Start () {
     DontDestroyOnLoad(this.gameObject);
 }

Not tested yet but should work.

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Hobbitgy8 · Jan 17, 2020 at 02:56 PM 0

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this doesn't seem to work for me

Make music continue playing through scenes

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