@Override
	public void beginContact(Contact contact) {
		Fixture fa = contact.getFixtureA();
		Fixture fb = contact.getFixtureB();
		
		if(fa.getUserData() != null && fa.getUserData().equals("world")) {
			playerCollidedWithWorld = true;
		}
		if(fb.getUserData() != null && fb.getUserData().equals("world")) {
			playerCollidedWithWorld = true;
		}
	}