Loosing prefab after destroying objects

Unity Engine
,
1

Hi All,

I have an object launcher in my project with a prefab attached to it.

During play, i instantiate this object afew times, thus the prefab.

At the end of the party, i destroy all the instantiated objects to start a new party.

But i want to instantiate the object again, i get an error message stating that the prefab is null

any idea what can go wrong?

is there a way to explicitely reattach the prefab to the object during play to overcome this

any help gracefully welcomed!

2

If you can post the script where you are doing the instantiate/destroy action, that would help. It sounds like you are Destroying the reference to the prefab itself, rather than the instantiated Instance of it. Here’s a very rough cut at what I’m getting at, don’t have much time to write right now:

public class GameController : MonoBehaviour
{
    // wire up in inspector
    public GameObject prefabReference;

    // ref to object that we will create and destroy
    private GameObject prefabInstance;

    void Start()
    {
        prefabInstance = Instantiate(prefabReference..etc

    }

    void PartyOver()
    {
        Destroy(prefabInstance);
    }

    void RestartParty()
    {
        prefabInstance = Instantiate(prefabReference..
    }
}
3

to instantiate i do like this:

var bouleComputer:Rigidbody;


function createBoule() {
		n++;
		bouleComputer=(Instantiate(bouleComputer, new Vector3(0,10,10), transform.rotation));
		bouleComputer.name="boule_computer"+n;
		bouleComputer.rigidbody.velocity=transform.TransformDirection(Vector3(throwForceX,throwForceY,throwForceZ));	
}

to destroy, i do (from an outside script):

function newGame() {
	for (var i:int=1;i<=BouleComputerThrowScript.n;i++) {
		Destroy(GameObject.Find("boule_computer"+i));
	}
	BouleComputerThrowScript.n=0;			
}

my var is a Rigidbody, yours is a GameObject, could that be the clue?

i try to declare the var as a GameObject but i get a class cast exception
can you explain how to use a GameObject rather than a rigidbody?

i used an empty GameObject to which i associated a script and a prefab that has a rigidbody, i refer to it as a rigidbody.

shall i declare the rigidbody at the GameObject level rather than the prefab?

cheers, benoit

4

i got it thanks to your code:

i was using the same reference for the prefab and the object instantiated

thanks again for your help