This is my submission for the counting prototype in the "Pathway" program of Unity Learn. It's fairly simple: When you click on an object, spheres will appear around your cursor. Their color is random (red, blue or green) and their position as well, but it will be close to your cursor. You can set how much sphere is instantiated per click using the slider in the bottom right corner. The spheres that enter the box are counted, and the UI displays how much sphere of each color have entered the box, as well as the total of spheres that entered the box.