Boden

local tArgs = { ... }
if #tArgs ~= 1 then
	print( "Usage: Boden <rows>" )
	return
end

local rows = tonumber( tArgs[1] )

function items()
  local items = turtle.getItemCount()
  if items == 0
    turtle.select(2)
  end
end

function wand()
  turtle.digDown()
  turtle.placeDown()
  turtle.forward()
  items()
end

function turn()
  turtle.turnLeft()
  turtle.turnLeft()
  for i = 1, 16 do
    turtle.forward()
  end
  turtle.turnLeft()
  turtle.forward()
  turtle.turnLeft()
end

function work()
  for i = 1, 16 do
    wand()
  end
  turn()
end

for i = 1, rows do
  work()
end