Problem instantiating a prefab with static typing

Question

Since I'm coding for iOS, I gather I need to use static typing in my scripts. I have a function in one script which instantiates a prefab (a dust cloud). I want to retain the instantiated GameObject as a variable in the main script because I want THAT script to decide when to destroy the dust cloud. Here's a simplified version:

var dust : GameObject; var dustCloud : GameObject; // this is the prefab

function MakeDust() {
   dust = Instantiate(dustCloud, transform.position, Quaternion.identity);
}

function KillDust() {
   Destroy(dust);
}

I get this error:

BCE0022: Cannot convert 'UnityEngine.Object' to 'UnityEngine.GameObject'.

The error goes away if I change the first line to:

var dust : Object;

But then, I get this error:

BCE0023: No appropriate version of 'UnityEngine.Object.Destroy' for the argument list '(Object)' was found.

Answer 1

Best Answer

Answer by Tetrad · Feb 23, 2011 at 07:49 PM

Instantiate returns an Object. What you need to do is cast it to a GameObject. I'm not familiar with the JS syntax, but try doing this:

dust = (GameObject)Instantiate(dustCloud, transform.position, Quaternion.identity);

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Eric5h5 · Feb 23, 2011 at 08:04 PM 1

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That's C#; JS syntax is "`dust = Instantiate(dustCloud, transform.position, Quaternion.identity) as GameObject;`"

robinking · Feb 24, 2011 at 12:30 AM 0

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Thanks to you both!

Problem instantiating a prefab with static typing

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