doodle/dev-assets/doodads/buttons/sticky.js

function main() {
	console.log("%s initialized!", Self.Doodad.Title);

	var pressed = false;

	// When a sticky button receives power, it pops back up.
	Message.Subscribe("power", function(powered) {
		if (powered && pressed) {
			Self.ShowLayer(0);
			pressed = false;
			Message.Publish("power", false);
		}
	})

	Events.OnCollide(function(e) {
		if (pressed) {
			return;
		}

		// Verify they've touched the button.
		if (e.Overlap.Y + e.Overlap.H < 24) {
			return;
		}

		Self.ShowLayer(1);
		pressed = true;
		Message.Publish("power", true);
	});
}