def onAttachScreen(self): self.trail = DotTrail(self.screen, self.score, self.level) self.trail.createSurface() self.trail.alignTop() self.trail.centerX(self.screen.width) self.hud.createSurface() self.hud.alignLeft() self.hud.alignTop() self.enemySpawner = DotCarSpawner(3, 2) self.borderSpawner = DotBorderSpawner(1) if self.startMusic: pygame.mixer.music.load("assets/music/racing-theme.mp3") pygame.mixer.music.set_volume(0.5) pygame.mixer.music.play(-1, 0.0)