Bullet Game is our near-end stage pygame 2d game framework example. We've already done at least 6 or 7 other games using pygame. So this will document the patterns we have learned.

We began by “just writing” a game, then the second part was refactoring the game. I wanted to make refactoring it's own project. What are the goals of this refactoring?

• Refactoring
  • Encapsulation
  • Light Commentary (code commentary) ex. IN and OUT for functions.

The primary goal is encapsulation. So, we're going to break up the old main into several new classes.

The first part of this is the use of pygame framework. We'll describe the additions here.

Here is the code we added, starting with main.py:

from Window import *
from Game import *

def main():
    window = Window()
    window.setCaption("Bullet Game")
    window.setSize(Screen.WIDTH, Screen.HEIGHT)
    window.setFont("assets/ps2p.ttf", 32)

    game = Game(window)
    game.start()

if __name__ == "__main__":
    main()