Is there a way to run script when adding object to scene?

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I'm child-ing a prefab (containing a trigger sphere collider) onto certain objects in my scene, and I've figured out a way to set the collider radius in accordance with the parent's scale, but am wondering if there's a way to have this automatically set when I drag the prefab onto the object, rather than at runtime?

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Answer by Paulius-Liekis · Feb 28, 2012 at 11:29 AM

EditorWindow.OnHierarchyChange perhaps? Of course that means you would have to have some EditorWindow open.

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Essential · Feb 29, 2012 at 10:09 AM 0

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Would it be as an editor script? I'm not too familiar with editor scripts… I'll look into it though, thanks!

Alec-Slayden · Feb 29, 2012 at 10:43 AM 0

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@script ExecuteInEditMode() perhaps will help

Paulius-Liekis · Feb 29, 2012 at 02:19 PM 0

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Yes, it's an editor script. You class has to be derived from EditorWindow and you have to implement OnHierarchyChange.

Paulius-Liekis · Feb 29, 2012 at 02:20 PM 1

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@alec, ExecuteInEditMode has nothing to do with this - it is used to telling Unity that it should execute MonoBehaiour in Edit mode.

Alec-Slayden · Feb 29, 2012 at 02:44 PM 0

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Yes, I understand that. Perhaps I misunderstoo the question; I thought Essential was doing something in runtime, and also wanted to do it while editing, in which case ExecuteInEditMode and a quick transform.parent check would be a potential resolution.

Is there a way to run script when adding object to scene?

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