Constellations/js/GUI.js

return {
	activate: activate,
	mouse: {
		left: 0,
		right: 2
	}
};

function activate(on, targets) {
	if(!Array.isArray(targets)) {
		targets = [targets]
	}
	targets.forEach(function(element) {
		element.classList[on ? 'add' : 'remove']('active');
	});
}