Manage children-objects on collision

Unity Engine
1

Hi,

Using a script, I attached 10 meshes to an empty object (the parent). Now, I would like to handle collisions between one of these objects and a wall. In the script I added OnCollisionEnter(), but how can I select which object collides?

void Start()
{
    mesh_1.transform.parent = this.transform;
    mesh_2.transform.parent = this.transform;
}

void OnCollisionEnter(Collision col)
{
     if(col.gameObject.tag == "wall")
     {
         print("hit"); // Doesn't work?
     }

    /* Pseudocode:
     * if mesh1 collides with a wall: print "mesh1 hits",
     * else: print "mesh2 hits"
     */
}

Thanks

2

Unfortunately, you can’t actually do that. Collisions are always bubbled up to the parent.

3

Ok, thanks.