This library is not meant to stay inside the amethyst project.
Actually this is here only to make it more simple to develop. The idea is to move this outside once it's almost done.
To use this backend you have to specify the
NPhysicsBackend type in the
amethyst_physics instructions know more.
These macros are used to assert the validity of some data, but instead to panics they stop the functions processing print a message on the console.
NPhysics backend can be specified as type of the PhysicsBundle to use NPhysics engine.