class base_sprite(pygame.sprite.Sprite):
    def __init__(self,x,y,image):
        pygame.sprite.Sprite.__init__(self)
        if type(image) == pygame.Surface:
            self.image = image
        else:
            self.image = pygame.image.load(image)
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y