When collider enters trigger, colliders parent = triggers parent

Question

I'm trying to write some code so that when a gameObject enters a Trigger, it parents that gameObject to the triggers own parent. However, I'm having some difficulty accessing the Transform of said object in my code. Here's some examples of what I've tried:

function OnTriggerEnter (other : Collider){
if (other.transform.tag == "Moveable")
    {
    other.transform.parent = transform.parent;
}
}

And:

var otherTrans; function OnTriggerEnter (other : Collider){

if (other.transform.tag == "Moveable") { otherTrans = other.transform; 
 otherTrans.parent = transform.parent;

} }

I've tried a few other things too, but they're all variations on this. I've tried looking through the script references for inherited members, but I still can't find a way. What is the exact set of inherited members I need, or does my code need changed?

Thanks

P.S. all the colliders which it would pick up are rigidbodies.

Answer 1

Best Answer

Answer by Eric5h5 · Apr 05, 2011 at 07:26 PM

Your first code example will work as-is, although you don't need to get the tag from the transform component (it's inherited from GameObject anyway), and using CompareTag is better.

if (other.CompareTag("Moveable")) {

Put Debug.Log statements in to see if the trigger event is happening, and what the other's tag actually is.

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Alienjesus · Apr 05, 2011 at 07:40 PM 0

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It's not picking up the colliders entering the trigger. I seem to have a terrible record with triggers, they never seem to work for me. Evidently I'm doing something wrong with them.

I thought it was as simple as if a collider enters the trigger, it sends the message that starts the function?

Eric5h5 · Apr 05, 2011 at 08:21 PM 0

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@Alienjesus: Have you looked at the chart here? http://unity3d.com/support/documentation/Components/class-MeshCollider.html Not everything generates trigger messages.

Alienjesus · Apr 05, 2011 at 09:16 PM 0

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But in this case, a static trigger is colliding with a rigidbody collider, so it should.

Alienjesus · Apr 09, 2011 at 03:47 PM 0

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Changed the trigger to a kinematic rigidbody trigger, everything works fine now.

When collider enters trigger, colliders parent = triggers parent

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