maximtwo is my hero

secretstuff.java

	protected void loadFixtures(TiledMap map, World world) {
		MapLayer fixturesLayer = map.getLayers().get("fixtures");
		Array<PolylineMapObject> fixtures = fixturesLayer.getObjects().getByType(PolylineMapObject.class);
		
		BodyDef bd = new BodyDef();
		bd.type = BodyType.StaticBody;
		
		groundBody = world.createBody(bd);
        groundBody.setUserData(-1);
		
		FixtureDef fd = new FixtureDef();
		fd.density = 1.0f;
		fd.friction = 0.3f;
		fd.filter.categoryBits = ContactFilters.BOUNDARY;
		fd.filter.maskBits = (short) (ContactFilters.PLAYER | ContactFilters.POTATO | ContactFilters.CRATE);
		
		for(int i = 0; i < fixtures.size; ++i) {
			
			ChainShape cs = new ChainShape();
			fd.shape = cs;
			
			Polyline fixture = fixtures.get(i).getPolyline();

			float[] vertices = fixture.getTransformedVertices();
			
			for(int j = 0; j < vertices.length; ++j) {				
				vertices[j] /= PIXELS_PER_METER;				
			}
			
			cs.createChain(vertices);
			groundBody.createFixture(fd);
			
			cs.dispose();
			
		}
	}