Every video game needs controls: "OK" or "Cancel" buttons, dropdown or popup menus for selecting from a list of options, scroll bars, and so forth. In the image above we can see a popup menu in action, allowing us to select a rank for one of our AIs. Since we're using a completely custom game engine, all of our controls need to be created from scratch. Fortunately, our most clever programmers (Hi, Arthur!) built us a tool to make this as easy as drawing shapes on the screen.
The screenshot above is our tool, ScreenMaker, in action. We draw …