This question was closed Feb 26, 2017 at 08:26 AM by GKuhns for the following reason:

The question is answered, right answer was accepted

Question by GKuhns · Feb 24, 2017 at 11:19 PM · collision jet

why won't my collision script work?

I'm trying to make it so that the AI jet from the Standard Assets package will crash & burn in the event of a collision with other jets or terrain. I'm working from the Scripting API; https://docs.unity3d.com/ScriptReference/Collider.OnCollisionEnter.html

For testing purposes, I attached my script to a cube, gave it a rigid body component with "Is Kinematic" un-ticked, and positioned a 2nd cube (also w/ non-kinematic rigid body) above, so that it falls onto the first... but my collision event does not get triggered.

My script is as follows:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityStandardAssets.Vehicles.Aeroplane;
 
 public class JetCollision : MonoBehaviour {
 
     public AeroplaneController Jet;
     public int Jethealth = 5;
     public GameObject KillPointExplosion;
     public GameObject JetSoundToStop;
 
 
     void OnCollisionEnter(Collision collision) {
         foreach (ContactPoint contact in collision.contacts) {
             Debug.DrawRay(contact.point, contact.normal, Color.white);
         }
         if (collision.relativeVelocity.magnitude > 2)
             Jethealth = 0;
     }
 
     void Update(){ 
         if (Jethealth == 0) {
             KillPointExplosion.SetActive (true);
             JetSoundToStop.SetActive (false);
             Jet.Immobilize ();
         }
     }
 }

The OnCollisionEnter bit is taken nearly verbatim from the example code given in the API - I just changed "audio.Play();" to "Jethealth = 0;"

I'd love to know what I'm doing wrong, if anyone can see what the problem is.

Thanks, and cheers!

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