function turtleBuildTower(height)
	local directions = {1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 2, 1, 3, 1, 1, 4, 1, 1, 4, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 2, 1, 3, 1, 1, 4, 1, 1, 4, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 2, 1, 3, 1, 1, 4, 1, 1, 4, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 2, 1, 3, 1, 1, 4, 1, 1, 10}

	local count = 0
	for _ in pairs(directions) do count = count + 1 end

	for i = 1, height do
		for i = 1, count do
			if directions[i] == 1 then
				addForward()
			else
				turnTurtle(directions[i])
			end
		end
	end
end

function addForward()
	local invi = checkInvi()
	while not turtle.forward() do
		turtle.dig()
	end
	while turtle.detectDown() do
		turtle.digDown()
	end
	if invi ~= false then
		turtle.select(invi)
		turtle.placeDown()
	else
		while not turtle.placeDown() do
			print(turtle.placeDown())
		end
	end
end

function turnTurtle(turn)
	if turn == 2 then
		turtle.turnLeft()
		while not turtle.forward() do
			turtle.dig()
		end
		turtle.turnRight()
	elseif turn == 3 then
		while not turtle.forward() do
			turtle.dig()
		end
		turtle.turnLeft()
	elseif turn == 4 then
		turtle.turnRight()
		while not turtle.forward() do
			turtle.dig()
		end
		turtle.turnLeft()
	elseif turn == 10 then
		turtle.turnRight()
		while not turtle.forward() do
			turtle.dig()
		end
		turtle.turnLeft()
		while not turtle.up() do
			turtle.digUp()
		end
	end
end

function checkInvi()
  for i = 1,16 do
        turtle.getItemCount(i)
        if turtle.getItemCount(i) > 0 then
          return i
        else
          return false
        end
  end
end

turtleBuildTower(1)