import:
    org.bukkit.util.BoundingBox
    org.bukkit.block.data.Bisected$Half
    org.bukkit.block.BlockFace
    org.bukkit.block.data.type.Stairs$Shape

options:
    nw-eigth : (new BoundingBox(0, 0.5, 0, 0.5, 1, 0.5))
    ne-eigth : (new BoundingBox(0.5, 0.5, 0, 1, 1, 0.5))
    se-eigth : (new BoundingBox(0.5, 0.5, 0.5, 1, 1, 1))
    sw-eigth : (new BoundingBox(0, 0.5, 0.5, 0.5, 1, 1))

function getStairAABB(b: block) :: objects:

    {_b}.toString() contains "stair"

    set {_v} to {_b}.getLocation().toVector()

    set {_data} to {_b}.getBlockData()
    set {_face} to {_data}.getFacing().getOppositeFace()
    set {_shape} to {_data}.getShape()

    if {_face} = BlockFace.NORTH!:
        if {_shape} = Shape.STRAIGHT!:
            set {_strip} to (new BoundingBox(0, 0.5, 0.5, 1, 1, 1))
        else if {_shape} = Shape.INNER_LEFT!:
            set {_strip} to (new BoundingBox(0, 0.5, 0.5, 1, 1, 1))
            set {_eigth} to {@ne-eigth}
        else if {_shape} = Shape.INNER_RIGHT!:
            set {_strip} to (new BoundingBox(0, 0.5, 0.5, 1, 1, 1))
            set {_eigth} to {@nw-eigth}
        else if {_shape} = Shape.OUTER_LEFT!:
            set {_eigth} to {@se-eigth}
        else if {_shape} = Shape.OUTER_RIGHT!:
            set {_eigth} to {@sw-eigth}

    else if {_face} = BlockFace.EAST!:
        if {_shape} = Shape.STRAIGHT!:
            set {_strip} to (new BoundingBox(0, 0.5, 0, 0.5, 1, 1))
        else if {_shape} = Shape.INNER_LEFT!:
            set {_strip} to (new BoundingBox(0, 0.5, 0, 0.5, 1, 1))
            set {_eigth} to {@se-eigth}
        else if {_shape} = Shape.INNER_RIGHT!:
            set {_strip} to (new BoundingBox(0, 0.5, 0, 0.5, 1, 1))
            set {_eigth} to {@ne-eigth}
        else if {_shape} = Shape.OUTER_LEFT!:
            set {_eigth} to {@sw-eigth}
        else if {_shape} = Shape.OUTER_RIGHT!:
            set {_eigth} to {@nw-eigth}

    else if {_face} = BlockFace.SOUTH!:
        if {_shape} = Shape.STRAIGHT!:
            set {_strip} to (new BoundingBox(0, 0.5, 0, 1, 1, 0.5))
        else if {_shape} = Shape.INNER_LEFT!:
            set {_strip} to (new BoundingBox(0, 0.5, 0, 1, 1, 0.5))
            set {_eigth} to {@sw-eigth}
        else if {_shape} = Shape.INNER_RIGHT!:
            set {_strip} to (new BoundingBox(0, 0.5, 0, 1, 1, 0.5))
            set {_eigth} to {@se-eigth}
        else if {_shape} = Shape.OUTER_LEFT!:
            set {_eigth} to {@nw-eigth}
        else if {_shape} = Shape.OUTER_RIGHT!:
            set {_eigth} to {@ne-eigth}

    else if {_face} = BlockFace.WEST!:
        if {_shape} = Shape.STRAIGHT!:
            set {_strip} to (new BoundingBox(0.5, 0.5, 0, 1, 1, 1))
        else if {_shape} = Shape.INNER_LEFT!:
            set {_strip} to (new BoundingBox(0.5, 0.5, 0, 1, 1, 1))
            set {_eigth} to {@nw-eigth}
        else if {_shape} = Shape.INNER_RIGHT!:
            set {_strip} to (new BoundingBox(0.5, 0.5, 0, 1, 1, 1))
            set {_eigth} to {@sw-eigth}
        else if {_shape} = Shape.OUTER_LEFT!:
            set {_eigth} to {@ne-eigth}
        else if {_shape} = Shape.OUTER_RIGHT!:
            set {_eigth} to {@se-eigth}


    set {_slab} to (new BoundingBox(0, 0, 0, 1, 0.5, 1)).shift({_v})

    {_strip} is set:
        {_strip}.shift({_v})
    {_eigth} is set:
        {_eigth}.shift({_v})

    {_data}.getHalf() = Half.TOP!:
        {_slab}.shift(vector(0, 0.5, 0))
        {_strip} is set:
            {_strip}.shift(vector(0, -0.5, 0))
        {_eigth} is set:
            {_eigth}.shift(vector(0, -0.5, 0))

    return ({_slab}, {_strip}, {_eigth})