Method on

src/main/java/fieldbox/boxes/plugins/Planes.java:22–30

(Box root, Box test)

	static public field.utility.Dict.Prop<Function<Box, Number>> selectPlane = new Dict.Prop<>("selectPlane").type().toCanon().doc("set at the root level to determine which planes are visible and interactive at any one time");

	static public double on(Box root, Box test) {
		Function<Box, Number> selector = root.properties.getOr(selectPlane, () -> null);
		if (selector == null) {
			String p = test.properties.get(plane);
			return (((p == null || p.trim().length() == 0) && test.properties.has(Box.frame) && test.properties.has(Box.name)) || (p!=null && p.trim().contains("__always__"))) ? 1 : 0;
		} else {
			return selector.apply(test).doubleValue();
		}
	}

	static public Function<Box, Number> getSelector(Box root)
	{