Learn Game Programming with Ruby

Make an Empty Window

Each game you’ll write starts by opening a window on your screen. That window is where you’ll bring your games to life, drawing images and making them move. Gosu provides you with a class for drawing that window, called Gosu::Window. This class does more than just draw the window; it also provides methods that give structure to your games. Each time you write a game, you’ll start by creating a subclass of Gosu::Window. For your first game, that subclass will be called WhackARuby.

To create this class, make a new folder called WhackARuby, inside the Games folder you made in ​Organize Your Workspace​. Using your text editor, make a new file and save it in that folder with the name whack_a_ruby.rb.

To use its classes in ...