Writing the game
Our application is structured around building blocks described earlier: our root widget is a PSWidget subclass called Game and all in-game entities will derive from the Particle class.
Here is the short and sweet base application:
from kivy.base import EventLoop
from kivy.clock import Clock
class Game(PSWidget):
glsl = 'game.glsl'
atlas = 'game.atlas'
def initialize(self):
pass
class GameApp(App):
def build(self):
EventLoop.ensure_window()
return Game()
def on_start(self):
self.root.initialize()
Clock.schedule_interval(
self.root.update_glsl, 60 ** -1)The following are the details about external files referenced here:
The
game.glslshader file is the same asstarfield.glslfrom the previous chapterThe
game.atlastexture map hosts the following textures:star: This texture resembles a star, similar to the one we've used in the previous projectplayer: This is a spaceship facing to the right (in the general...