private boolean atBoundary(GroundItem item) {
		for (GameObject object : Objects.getLoaded()) {
			if (!object.getType().equals(Type.BOUNDARY))
				continue;
			if (intersects(object.getModel(), item.getModel()))
				return true;
		}
		return false;
	}

	private boolean intersects(Model m, Model M) {
		if (m == null || M == null)
			return false;
		for (Polygon polygon_m : m.getTriangles()) {
			for (Polygon polygon_M : M.getTriangles()) {
				if (polygon_m.getBounds().intersects(polygon_M.getBounds())) {
					return true;
				}
			}
		}
		return false;
	}