python学习之飞机大战

class PlaneGame(object):
    ''' 飞机大战主游戏 '''

    def __init__(self):
        print("chushihua")

        # (1)设置游戏窗口
        self.screen = pygame.display.set_mode(SCREEN_RECT.size)
        # (2)创建游戏时钟
        self.clock = pygame.time.Clock()
        # (3)调用私有方法，创建精灵、精灵组
        self.__create_sprites()

        # (4)设置定时器事件 - 创建敌机 1s
        pygame.time.set_timer(CREATE_ENEMY_EVENT, 1000)
        pygame.time.set_timer(HERO_FIRE_EVENT, 500)

    def __create_sprites(self):

        # 创建背景精灵和精灵组
        bg1 = Background()
        bg2 = Background(True)

        self.back_ground = pygame.sprite.Group(bg1, bg2)

        # 创建敌机的精灵组
        self.enemy_group = pygame.sprite.Group()

        # 创建英雄的精灵和精灵组
        self.hero = Hero()
        self.hero_group = pygame.sprite.Group(self.hero)

    def start_game(self):
        print("Game Start...")

        while True:
            # (1)设置刷新帧率
            self.clock.tick(FRAME_PER_SEC)
            # (2)事件监听
            self.__event_handler()
            # (3)碰撞检测
            self.__check_collide()
            # (4)更新精灵组
            self.__update_sprites()
            # (5)更新屏幕显示
            pygame.display.update()

    def __event_handler(self):
        for event in pygame.event.get():

            # 判断是否退出游戏
            if event.type == pygame.QUIT:
                PlaneGame.__game_over()
            elif event.type == CREATE_ENEMY_EVENT:
                # print("敌机出场...")
                # 创建敌机精灵
                enemy = Enemy()

                # 将敌机精灵添加到敌机精灵组
                self.enemy_group.add(enemy)
            elif event.type == HERO_FIRE_EVENT:
                self.hero.fire()
            # elif event.type == pygame.KEYDOWN and event.key == pygame.K_RIGHT:
            #     print("right")

        # 使用键盘提供的方法获取键盘按键 - 按键元组
        keys_pressed = pygame.key.get_pressed()
        # 判断远足中对应的按键索引值
        if keys_pressed[pygame.K_RIGHT]:
            self.hero.speed = 2
        elif keys_pressed[pygame.K_LEFT]:
            self.hero.speed = -2
        else:
            self.hero.speed = 0

    def __check_collide(self):
        # 1、子弹摧毁敌机
        pygame.sprite.groupcollide(self.hero.bullets, self.enemy_group, True, True)
        # 2、敌机撞毁英雄
        enemies = pygame.sprite.spritecollide(self.hero, self.enemy_group, True)
        # 判断列表是否有内容
        if len(enemies) > 0:
            # 让英雄牺牲
            self.hero.kill()
            # 结束游戏
            PlaneGame.__game_over()

    def __update_sprites(self):

        self.back_ground.update()
        self.back_ground.draw(self.screen)

        self.enemy_group.update()
        self.enemy_group.draw(self.screen)

        self.hero_group.update()
        self.hero_group.draw(self.screen)

        self.hero.bullets.update()
        self.hero.bullets.draw(self.screen)

    @staticmethod    # 静态方法定义
    def __game_over():
        print("Game Over")

        pygame.quit()
        exit()


if __name__ == '__main__':

    # 创建游戏对象
    game = PlaneGame()

    # 启动游戏
    game.start_game()class PlaneGame(object):
    ''' 飞机大战主游戏