Type PhysicsContact Event postCollision Revision 2017.3179 Keywords postCollision, contact
During a post-collision, there are multiple contact points that occur. You can manipulate these contact points to create certain effects.
You should not hold onto the contact object. It is only valid in the scope of your collision listener.
event.contact.isTouching— indicates whether the two objects are touching
event.contact.bounce— specifies the bounce factor of the collision
event.contact.friction— specifies the friction factor of the collision