
class Facing:

    NORTH = (0 - 1j)
    WEST = (-1 + 0j)
    SOUTH = (0 + 1j)
    EAST = (1 + 0j)



    to_str = {NORTH : "NORTH",
                    WEST : "WEST",
                    SOUTH : "SOUTH",
                    EAST : "EAST"}



