Destroy object with dontdestroyonload

Question

Hi,

I have some script that is attached to an object so that it isn't destroyed as you play through level 1, level 2, level 3 and so on. However I want this object to be destroyed when the player reaches the menu screen, I've tried some if statements, something like

     if (SceneManager.LoadScene = "sceneSelectBeta") {
         Destroy;
     }

And tried adding some destroy functions but I can't get the object to delete when it reaches the scene.

Here is the code attached to the object, any help or advice would be appreciated.

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

 public class clockDontDestroy : MonoBehaviour {    
 
     private static clockDontDestroy _instance = null;
     public static clockDontDestroy Instance
         {
             get { return _instance; }
         }            

 void Awake()
         {
             if (_instance != null && _instance != this)
             {
                 Destroy(transform.root.gameObject);
                 return;
             }

         _instance = this;

         DontDestroyOnLoad(transform.root.gameObject);
     }
 }

Answer 1

Best Answer

Answer by ethranes · Aug 14, 2016 at 06:28 PM

I was able to resolve this issue by creating a second script, which finds the game object and destorys it, I then attached the script to an empty gameobject on the scene where the gameobject should be destroyed. Script below:

 void Start () {

     Destroy (GameObject.Find("*thegameobjecttobedestroyed*"));
 
 }

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fajriardiansyahh · Dec 14, 2018 at 04:17 AM 1

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Thank you thank you thank you so muchh!! I've been searching this for almost 3 days and can't find anything that suite $$anonymous$$e. Love you so much.

Georges_d · Jan 06, 2019 at 08:31 PM 1

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Thank you, that's extremely helpful, I've been trying to destroy the object using FindObjectOfType, but that didn't work, while this one destroys the GameObject itself, thank you very much!!!

nathi0106 · May 07, 2019 at 07:12 AM 0

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Can someone give me an example on the "thegameobjecttobedestroyed"))? im sorry..Im super noob in this

damobe · Nov 21, 2020 at 05:04 PM 0

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It doesn't work.

NeilLondon · Feb 27 at 01:51 PM 0

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SO this didn't work for me however this did:

On a script in the scene you want the music to stop playing when it loads do this:

     private void Awake()
     {
         if (SceneManager.GetActiveScene().name == "MainMenu")
         {
             Destroy(GameObject.Find("MusicPlayer"));
         }
     }

Where "MainMenu" is the name of the Scene and "MusicPlayer" is the name of the Game Object that you want to destroy.

NeilLondon NeilLondon · Feb 27 at 01:54 PM 0

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Of Course now the original way ethranes posted is working >.<

Answer 2

This is pretty late, but another option would be using the SceneManager.activeSceneChanged event ( https://docs.unity3d.com/ScriptReference/SceneManagement.SceneManager-activeSceneChanged.html ).

You'd need to modify your code to something like this:

 using UnityEngine;
 using System.Collections;
 using UnityEngine.SceneManagement;
 
 public class clockDontDestroy : MonoBehaviour
 {
     private static clockDontDestroy _instance = null;
 
     public static clockDontDestroy Instance
     {
         get { return _instance; }
     }
 
     public static int menuScreenBuildIndex; //the menu screen's index in your Build Settings
 
     void Awake()
     {
         if (_instance != null && _instance != this)
         {
             Destroy(transform.root.gameObject);
             return;
         }
         _instance = this;
         DontDestroyOnLoad(transform.root.gameObject);
 
         SceneManager.activeSceneChanged += DestroyOnMenuScreen;
     }
 
     void DestroyOnMenuScreen(Scene oldScene, Scene newScene)
     {
         if (newScene.buildIndex == menuScreenBuildIndex) //could compare Scene.name instead
         {
             Destroy(this); //change as appropriate
         }
     }
 }

Destroy object with dontdestroyonload

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