game.py 文件源码

def __init__(self):
        pygame.init()
        pygame.key.set_repeat(10, 100)

        # set constants
        self.COLOR_WHITE = (255, 255, 255)
        self.COLOR_BLACK = (0, 0, 0)
        self.GAME_WIDTH = 400
        self.GAME_HEIGHT = 400
        self.BALL_WIDTH = 20
        self.BALL_HEIGHT = 20
        self.PADDLE_WIDTH = 50
        self.PADDLE_HEIGHT = 10
        self.GAME_FLOOR = 350
        self.GAME_CEILING = 10
        self.BALL_VELOCITY = 10
        self.PADDLE_VELOCITY = 20
        self.FONT_SIZE = 30
        self.MAX_TRIES_PER_GAME = 100
        self.CUSTOM_EVENT = pygame.USEREVENT + 1
        self.font = pygame.font.SysFont("Comic Sans MS", self.FONT_SIZE)

        # we want to start the game remotely, so moving this block
        # to its own function
        self.frames = collections.deque(maxlen=4)
        self.game_over = False
        # initialize positions
        self.paddle_x = self.GAME_WIDTH // 2
        self.game_score = 0
        self.ball_x = random.randint(0, self.GAME_WIDTH)
        self.ball_y = self.GAME_CEILING
        self.num_tries = 0
        # set up display, clock, etc
        self.screen = pygame.display.set_mode(
                (self.GAME_WIDTH, self.GAME_HEIGHT))
        self.clock = pygame.time.Clock()