Instance Property


A delegate that is called when two physics bodies come in contact with each other.


@property(nonatomic, assign) id<SKPhysicsContactDelegate> contactDelegate;


A contact is created when two physics bodies overlap and one of the physics bodies has a contactTestBitMask property that overlaps with the other body’s categoryBitMask property. By default, a physics body’s contactTestBitMask is set to all bits cleared.