WallMaker

x = 0

y = 0

slot = 1

function selectSlot()
    if turtle.getItemCount(slot) == 0 then
        slot = slot + 1
    end
    turtle.select(slot)
end

function column()
    selectSlot()
    turtle.dig()
    turtle.place()
    while y < h - 1 do
        turtle.up()
        y = y + 1
        turtle.dig()
        turtle.place()
    end
    while y > 0 do
        turtle.down()
        y = y - 1
    end
end



print("+-------------------------------------+")
print("| Wall Maker                          |")
print("+-------------------------------------+")
print("| Slot 16: Fuel                       |")
print("| Slot 1-15: Blocks                   |")
print("+-------------------------------------+")
print("| Place turtle at bottom left of the  |")
print("| wall. Specify width and height.     |")
print("| Press enter to start.               |")
print("+-------------------------------------+")
read()
print("+-------------------------------------+")
print("| Wall Width = ?                      |")
print("+-------------------------------------+")
w = tonumber(read())
print("+-------------------------------------+")
print("| Wall height = ?                     |")
print("+-------------------------------------+")
h = tonumber(read())
column()
for i = 1,w - 1,1 do
    turtle.turnRight()
    turtle.forward()
    x = x + 1
    turtle.turnLeft()
    column()
end
turtle.turnLeft()
for i = 1,w - 1,1 do
    turtle.forward()
    x = x - 1
end
turtle.turnRight()
print("Done! :D")