NPhysics Amethyst backend

This crate is the NPhysics integration of the amethyst_physics interface.

To use this backend you have to specify the class NPhysicsBackend in the PhysicsBundle as shown below.

use amethyst_physics::PhysicsBundle;
use amethyst::amethyst_nphysics::NPhysicsBackend;

let game_data = GameDataBuilder::default()
    .with_bundle(PhysicsBundle::<f32, NPhysicsBackend>::new()).unwrap()

You can use this through amethyst_physics.