Can't find GameObject in new scene in DontDestroyOnLoad

I have a GameController in Scene1 and I made it DontDestroyOnLoad.

When I loaded Scene2, I'm trying to find a GameObject in Scene2 and the thing is obj2 is null but obj1 is not.

Why?

How could I find the GameObjectInScene2?

public class GameController: MonoBehaviour

{

    private void Awake()

    {

        DontDestroyOnLoad(this);

    }



    private void Start()

    {

        SceneManager.LoadScene("Scene2");

        GameObject obj1 = GameObject.Find("GameObjectInScene1");

        GameObject obj2 = GameObject.Find("GameObjectInScene2");

    }

}

edited Jan 2 at 10:19

derHugo

8,79331535

asked Jan 2 at 9:44

C1one

add a comment |

I have a GameController in Scene1 and I made it DontDestroyOnLoad.

When I loaded Scene2, I'm trying to find a GameObject in Scene2 and the thing is obj2 is null but obj1 is not.

Why?

How could I find the GameObjectInScene2?

public class GameController: MonoBehaviour

{

    private void Awake()

    {

        DontDestroyOnLoad(this);

    }



    private void Start()

    {

        SceneManager.LoadScene("Scene2");

        GameObject obj1 = GameObject.Find("GameObjectInScene1");

        GameObject obj2 = GameObject.Find("GameObjectInScene2");

    }

}

edited Jan 2 at 10:19

derHugo

8,79331535

asked Jan 2 at 9:44

C1one

add a comment |

I have a GameController in Scene1 and I made it DontDestroyOnLoad.

When I loaded Scene2, I'm trying to find a GameObject in Scene2 and the thing is obj2 is null but obj1 is not.

Why?

How could I find the GameObjectInScene2?

public class GameController: MonoBehaviour

{

    private void Awake()

    {

        DontDestroyOnLoad(this);

    }



    private void Start()

    {

        SceneManager.LoadScene("Scene2");

        GameObject obj1 = GameObject.Find("GameObjectInScene1");

        GameObject obj2 = GameObject.Find("GameObjectInScene2");

    }

}

edited Jan 2 at 10:19

derHugo

8,79331535

asked Jan 2 at 9:44

C1one

I have a GameController in Scene1 and I made it DontDestroyOnLoad.

When I loaded Scene2, I'm trying to find a GameObject in Scene2 and the thing is obj2 is null but obj1 is not.

Why?

How could I find the GameObjectInScene2?

public class GameController: MonoBehaviour

{

    private void Awake()

    {

        DontDestroyOnLoad(this);

    }



    private void Start()

    {

        SceneManager.LoadScene("Scene2");

        GameObject obj1 = GameObject.Find("GameObjectInScene1");

        GameObject obj2 = GameObject.Find("GameObjectInScene2");

    }

}

unity3d

edited Jan 2 at 10:19

derHugo

8,79331535

asked Jan 2 at 9:44

C1one

edited Jan 2 at 10:19

derHugo

8,79331535

asked Jan 2 at 9:44

C1one

edited Jan 2 at 10:19

derHugo

8,79331535

edited Jan 2 at 10:19

derHugo

8,79331535

edited Jan 2 at 10:19

derHugo

8,79331535

asked Jan 2 at 9:44

C1one

asked Jan 2 at 9:44

C1one

asked Jan 2 at 9:44

C1one

add a comment |

1 Answer
1

active

oldest

votes

Start is not called again since your component already ran it in Scene1

You can register to SceneManager.sceneLoaded and do the find in the callback instead.

I would also store the references global like

private GameObject obj1;

private GameObject obj2;



void Start()

{

    // This first line just makes sure the listener isn't added twice

    SceneManager.sceneLoaded -= OnSceneLoaded;



    // Whenever a scene is loaded call OnSceneLoaded

    SceneManager.sceneLoaded += OnSceneLoaded;   



    obj1 = GameObject.Find("GameObjectInScene1");



    SceneManager.LoadScene("Scene2");

}



void OnDestroy ()

{

    // Allways clean up listeners when not needed anymore!

    SceneManager.sceneLoaded -= OnSceneLoaded;

}



void OnSceneLoaded(Scene scene, LoadSceneMode mode)

{

    if(scene.name == "Scene2")

    {

        obj2 = Find("GameObjectInScene2");

    }

}

edited Jan 2 at 10:17

answered Jan 2 at 10:12

derHugo

8,79331535

Thanks for replying and editing my post! You save my day! So even I called LoadScene("Scene2") before, GameObject.Find will still trying to find the GameObject in Scene1, am I right?

– C1one
Jan 2 at 10:27

It depends how you load your Scenes (single or additive).. by default it is single so Find will search in the active Scene. From the docu :Note: If the game is running with multiple scenes then Find will search in all of them.

– derHugo
Jan 2 at 11:12

add a comment |

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1 Answer
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active

oldest

votes

1 Answer
1

active

oldest

votes

Start is not called again since your component already ran it in Scene1

You can register to SceneManager.sceneLoaded and do the find in the callback instead.

I would also store the references global like

private GameObject obj1;

private GameObject obj2;



void Start()

{

    // This first line just makes sure the listener isn't added twice

    SceneManager.sceneLoaded -= OnSceneLoaded;



    // Whenever a scene is loaded call OnSceneLoaded

    SceneManager.sceneLoaded += OnSceneLoaded;   



    obj1 = GameObject.Find("GameObjectInScene1");



    SceneManager.LoadScene("Scene2");

}



void OnDestroy ()

{

    // Allways clean up listeners when not needed anymore!

    SceneManager.sceneLoaded -= OnSceneLoaded;

}



void OnSceneLoaded(Scene scene, LoadSceneMode mode)

{

    if(scene.name == "Scene2")

    {

        obj2 = Find("GameObjectInScene2");

    }

}

edited Jan 2 at 10:17

answered Jan 2 at 10:12

derHugo

8,79331535

Thanks for replying and editing my post! You save my day! So even I called LoadScene("Scene2") before, GameObject.Find will still trying to find the GameObject in Scene1, am I right?

– C1one
Jan 2 at 10:27

It depends how you load your Scenes (single or additive).. by default it is single so Find will search in the active Scene. From the docu :Note: If the game is running with multiple scenes then Find will search in all of them.

– derHugo
Jan 2 at 11:12

add a comment |

Start is not called again since your component already ran it in Scene1

You can register to SceneManager.sceneLoaded and do the find in the callback instead.

I would also store the references global like

private GameObject obj1;

private GameObject obj2;



void Start()

{

    // This first line just makes sure the listener isn't added twice

    SceneManager.sceneLoaded -= OnSceneLoaded;



    // Whenever a scene is loaded call OnSceneLoaded

    SceneManager.sceneLoaded += OnSceneLoaded;   



    obj1 = GameObject.Find("GameObjectInScene1");



    SceneManager.LoadScene("Scene2");

}



void OnDestroy ()

{

    // Allways clean up listeners when not needed anymore!

    SceneManager.sceneLoaded -= OnSceneLoaded;

}



void OnSceneLoaded(Scene scene, LoadSceneMode mode)

{

    if(scene.name == "Scene2")

    {

        obj2 = Find("GameObjectInScene2");

    }

}

edited Jan 2 at 10:17

answered Jan 2 at 10:12

derHugo

8,79331535

Thanks for replying and editing my post! You save my day! So even I called LoadScene("Scene2") before, GameObject.Find will still trying to find the GameObject in Scene1, am I right?

– C1one
Jan 2 at 10:27

It depends how you load your Scenes (single or additive).. by default it is single so Find will search in the active Scene. From the docu :Note: If the game is running with multiple scenes then Find will search in all of them.

– derHugo
Jan 2 at 11:12

add a comment |

Start is not called again since your component already ran it in Scene1

You can register to SceneManager.sceneLoaded and do the find in the callback instead.

I would also store the references global like

private GameObject obj1;

private GameObject obj2;



void Start()

{

    // This first line just makes sure the listener isn't added twice

    SceneManager.sceneLoaded -= OnSceneLoaded;



    // Whenever a scene is loaded call OnSceneLoaded

    SceneManager.sceneLoaded += OnSceneLoaded;   



    obj1 = GameObject.Find("GameObjectInScene1");



    SceneManager.LoadScene("Scene2");

}



void OnDestroy ()

{

    // Allways clean up listeners when not needed anymore!

    SceneManager.sceneLoaded -= OnSceneLoaded;

}



void OnSceneLoaded(Scene scene, LoadSceneMode mode)

{

    if(scene.name == "Scene2")

    {

        obj2 = Find("GameObjectInScene2");

    }

}

edited Jan 2 at 10:17

answered Jan 2 at 10:12

derHugo

8,79331535

Start is not called again since your component already ran it in Scene1

You can register to SceneManager.sceneLoaded and do the find in the callback instead.

I would also store the references global like

private GameObject obj1;

private GameObject obj2;



void Start()

{

    // This first line just makes sure the listener isn't added twice

    SceneManager.sceneLoaded -= OnSceneLoaded;



    // Whenever a scene is loaded call OnSceneLoaded

    SceneManager.sceneLoaded += OnSceneLoaded;   



    obj1 = GameObject.Find("GameObjectInScene1");



    SceneManager.LoadScene("Scene2");

}



void OnDestroy ()

{

    // Allways clean up listeners when not needed anymore!

    SceneManager.sceneLoaded -= OnSceneLoaded;

}



void OnSceneLoaded(Scene scene, LoadSceneMode mode)

{

    if(scene.name == "Scene2")

    {

        obj2 = Find("GameObjectInScene2");

    }

}

edited Jan 2 at 10:17

answered Jan 2 at 10:12

derHugo

8,79331535

edited Jan 2 at 10:17

answered Jan 2 at 10:12

derHugo

8,79331535

answered Jan 2 at 10:12

derHugo

8,79331535

answered Jan 2 at 10:12

derHugo

8,79331535

Thanks for replying and editing my post! You save my day! So even I called LoadScene("Scene2") before, GameObject.Find will still trying to find the GameObject in Scene1, am I right?

– C1one
Jan 2 at 10:27

It depends how you load your Scenes (single or additive).. by default it is single so Find will search in the active Scene. From the docu :Note: If the game is running with multiple scenes then Find will search in all of them.

– derHugo
Jan 2 at 11:12

add a comment |

Thanks for replying and editing my post! You save my day! So even I called LoadScene("Scene2") before, GameObject.Find will still trying to find the GameObject in Scene1, am I right?

– C1one
Jan 2 at 10:27

It depends how you load your Scenes (single or additive).. by default it is single so Find will search in the active Scene. From the docu :Note: If the game is running with multiple scenes then Find will search in all of them.

– derHugo
Jan 2 at 11:12

Thanks for replying and editing my post! You save my day! So even I called LoadScene("Scene2") before, GameObject.Find will still trying to find the GameObject in Scene1, am I right?

– C1one
Jan 2 at 10:27

It depends how you load your Scenes (single or additive).. by default it is single so Find will search in the active Scene. From the docu :Note: If the game is running with multiple scenes then Find will search in all of them.

– derHugo
Jan 2 at 11:12

add a comment |

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