Implement this class to provide collision filtering. In other words, you can implement this class if you want finer control over contact creation.
Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
Fixture fixtureA, Fixture fixtureB) → bool
- Return true if contact calculations should be performed between these two shapes. @warning for performance reasons this is only called when the AABBs begin to overlap.
) → String
A string representation of this object. [...]