def tick(self):
if land.keyboard.pressed(land.keyboard.ESC) or land.closebutton():
land.quit()
w = 640 / 32
h = 480 / 32
for k in range(w * h):
x, y = self.jitter[k]
self.jitter[k] = (x + random.random() - 0.5, y + random.random() - 0.5)
def tick(self):
if land.keyboard.pressed(land.keyboard.ESC) or land.closebutton():
land.quit()
