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Question by oquendo · Apr 19, 2011 at 07:30 PM · collisionphysicsoncollisionenterfixedupdate

OnCollisionEnter inside FixedUpdate?

I'd like to add this code to a script, but I'm not sure it's correct.

function OnCollisionEnter (collision : Collision) 
{
    print (collision.collider);
    collision.rigidbody.AddForce (Vector3.up * 1000);
}

Since it includes AddForce, should it be inside FixedUpdate? But then, I guess I can't include the whole OnCollisionEnter function inside FixedUpdate?

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Answer by Patyrn · Apr 19, 2011 at 07:46 PM

OnCollisionEnter is added at the root of your class like any other function.

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avatar image oquendo · Apr 19, 2011 at 07:51 PM 0
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Is there no problem if it includes an Addforce statement? I was thinking perhaps it was necessary to store the GameObject from the collision in a variable and apply the force in the next call of FixedUpdate?

avatar image Eric5h5 · Apr 19, 2011 at 08:26 PM 0
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@oquendo: No, there's no reason to do that and several reasons not to. The code you have in your question is fine.

avatar image oquendo · Apr 19, 2011 at 08:34 PM 0
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O$$anonymous$$, thank you both.

avatar image adityajaix · Nov 03, 2020 at 04:11 AM 0
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What can I do if I want to move a platform only when the player collides with it. Using OnCollisionEnter does not gives the smooth motion. I want to move in fixed update OnCollision. How can I use it.

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