(var HILL_DIR_MAP
    #|[
        19 => Up(West),
        20 => Up(SouthWest),
        21 => Up(South),
        22 => Up(SouthEast),
        23 => Up(East),
        24 => Up(NorthEast),
        25 => Up(North),
        26 => Up(NorthWest),
        27 => Down(SouthEast),
        28 => Down(NorthEast),
        29 => Down(NorthWest),
        30 => Down(SouthWest)
    ]|#)

(var BEAM_DIR_MAP
    #|[
        32 => North,
        33 => West,
        34 => South,
        35 => East
    ]|#)

(method specialProperty []
    (case special_property
        ((when (<= 0 prop 8) prop)
            (Floor (FloorSpecialProperty.createEnumIndex prop)))
        ((when (HILL_DIR_MAP.exists prop) prop)
            (Hill (dictGet HILL_DIR_MAP prop)))
        (31 (Beam SwapTerrainWhenHit))
        ((when (BEAM_DIR_MAP.exists prop) prop)
            (Beam
                (Fire
                    (dictGet BEAM_DIR_MAP prop))))
        (36 (Beam (Mirror BackSlash)))
        (37 (Beam (Mirror ForwardSlash)))
        (38 (Beam PowerSource))
        (39 Sign)
        (40 Container)
        (41 Table)
        (42 ShimmerLightAndDark)
        (43 (Waterfall South))
        (44 (Waterfall East))
        (45 QuickFlammable)))