If you are familiar with Ruby, the syntax should be pretty straightforward, but there are a few
Window methods worth looking at:
initialize is your window’s constructor, and all of its configuration should be contained in this method. Note that we use
super to pass the width and height of the window up to
Window#initialize which uses them to size the window on the screen.
Gamewindow.new.show is sneaky- it creates a new
GameWindow as you might expect, and then immediately calls
show which tells Gosu to start the rendering loop inside your window. Note that if we put a line of code after this, it would not be run until the window closes.