How to destroy an object if it already exist in a scene

[ajnolasco11]

Hello I’m new here
I’m having a hard time with the Audio(BG Music) of my scene, I created a BG Music to my first scene that will continuously play even going to another scene. My problem is that if I go back to the that scene(first scene) where I put my BG Music it will play the BG Music again, making it double BG Music(x3,x4,x5… As I go back to that scene again)

Sorry for my wrong grammar

BTW this is my code:

function Awake()
{
	if(GameObject.Find("TronBG") == 1)
	{
		Debug.Log("IF");
		Destroy(gameObject);
    }
    else
    {
    	Debug.Log("ELSE");
		DontDestroyOnLoad(gameObject);
    	SoundSource = gameObject.AddComponent(AudioSource);
    	SoundSource.playOnAwake = false;
    	SoundSource.rolloffMode = AudioRolloffMode.Logarithmic;
    	SoundSource.loop = true;
    	    
    }
    
}

[aldonaletto]

Use a static variable to reference the first TronBG object, and suicide any TronBG object at Awake when this variable has been set:

static var bgAudio: GameObject;

function Awake(){
  if (bgAudio){ // if bgAudio already references some object...
    Destroy(gameObject); // suicide
  } else { // if bgAudio is null, this is the first TronBG object:
    bgAudio = gameObject; // assign this one
    SoundSource = gameObject.AddComponent(AudioSource);
    SoundSource.playOnAwake = false;
    SoundSource.rolloffMode = AudioRolloffMode.Logarithmic;
    SoundSource.loop = true;
  }
}

[KellyThomas]

If you give them a unique tag this will work:

function Awake() {
    if (GameObject.FindGameObjectsWithTag(gameObject.tag).length > 1){
        Destroy(gameObject);
    }
    else {
        //initialize
    }
}

The second (or more) instance will find more than one object with their tag.