class CollisionDirection:
    LEFT = 0
    RIGHT = 1
    TOP = 2
    BOTTOM = 3
    DIRECTION_NAMES = ['LEFT', 'RIGHT', 'TOP', 'BOTTOM']

    def __init__(self, direction: int, primary_sprite, secondary_sprite):
        self.direction = direction
        self.primary_sprite = primary_sprite
        self.secondary_sprite = secondary_sprite

    def to_string(self):
        return 'CollisionDirection.' + CollisionDirection.DIRECTION_NAMES[self.direction]