====== Physics Callbacks ======

===== OnTriggerEnter =====
  * Will be called for all collisions for all trigger colliders on this Rigidbody.
  * There is no way to get a reference to 'this' trigger collider that was entered.((https://gamedev.stackexchange.com/a/185095/1669))


===== OnTriggerExit =====
  * Is not called when a Rigidbody which is part of the collision is destroyed.
  * Is not called if the Rigidbody/Collider is recreated internally((Such as when a collider is moved to a new Rigidbody)).<sup>[//[[:wiki:tag:research-needed|research needed]]//]</sup>
  * Is not called if the trigger is disabled.

===== OnCollisionEnter =====
  * The OnCollisionEnter callback event must be attached to the GameObject with the Rigidbody you want to listen to. ((ie. this event will not fire if it is attached to a child collider))

===== OnCollisionExit =====
  * Is not called when a Rigidbody which is part of the collision is destroyed. 
  * Is not called if the Rigidbody/Collider is recreated internally (due to modifications). <sup>[//[[:wiki:tag:research-needed|research needed]]//]</sup>