Move

-- Move on the X axis i.e. East / West

function move_X(number)

    if(number <= 0) then
        turn("W")
        return true

    elseif(number >= 0) then
        turn("E")
        return true

    else
        return true
    end
end

-- Move on the Y axis i.e. Up / Down

function move_Y(number)

    return true
end

-- Move on the Z axis i.e. North / South

function move_Z(number)
    if(number <= 0) then
        turn("S")
        return true

    elseif(number >= 0) then
        turn("N")
        return true

    else
        return true
    end
    return true
end

function turn(newDirection)

    A = {["N"] = {["N"] = 0, ["E"] = 1, ["S"] = 2, ["W"] = 3},
         ["E"] = {["N"] = 3, ["E"] = 0, ["S"] = 1, ["W"] = 2},
         ["S"] = {["N"] = 2, ["E"] = 3, ["S"] = 0, ["W"] = 1},
         ["W"] = {["N"] = 1, ["E"] = 2, ["S"] = 3, ["W"] = 0}
    }

    currentDirection = getFacing()

    if(A[currentDirection][newDirection] == 3) then turtle.turnLeft()
    else
        for 1, A[currentDirection][newDirection] do
            if(A[currentDirection][newDirection]) == 3 then turtle.turnRight() end
        end
    end
end