Making a particle emitter collide with a rigidbody object?

Question

Hi,

I have a particle emitter that has a world particle collider attached to it, "send collision message" is enabled. I have a box with a mesh collider and rigidbody aswell as t$$anonymous$$s script attached to it...

     function OnParticleCollision (other : GameObject)
 {
     var body : Rigidbody = other.rigidbody;
     if (body) {
         var direction : Vector3 = other.transform.position - transform.position;
         direction = direction.normalized;
         body.AddForce (direction * 5);
     }
 }

The particle is definitely $$anonymous$$tting the box but its not moving the rigidbody what so ever. Any idea why t$$anonymous$$s is?

Thanks.

Answer 1

Best Answer

Answer by aldonaletto · May 19, 2012 at 06:12 PM

T$$anonymous$$s script must be attached to the particle system, not to the rigidbody. If you want to add a script to the rigidbody instead, it should be:

function OnParticleCollision (other : GameObject){
    var direction : Vector3 = transform.position - other.transform.position;
    rigidbody.AddForce (direction.normalized * 5);
}

The main difference between both versions: in the first version (particle script), any rigidbody will be affected by t$$anonymous$$s particle system; in the 2nd version (rigidbody script, like above), t$$anonymous$$s rigidbody will be affected by any particle system that has World Particle Collider and Send Collision Message enabled.

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Lboy · May 19, 2012 at 11:16 PM 0

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Thanks Aldo, I tried both methods, the first didnt seem to work, but when i attached the second script to the rigidbody as you suggested it worked perfectly. Thanks.

Making a particle emitter collide with a rigidbody object?

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