Block Placer

function startTunnel(lenght)

	local distance = 0

	for i=1, lenght, 1 do
		checkBlock()
		dig()
		forward()
		checkBlock()
		turnRight(1)
		digUp()
		dig()
		forward()
		checkBlock()
		digUp()
		turnLeft(2)
		forward()
		turnRight(1)

		distance = distance + 1

		print("Distance: " .. distance)

	end


end


function dig()
	while turtle.detect() do
		turtle.dig()
	end

end


function forward()
	turtle.forward()
end


function checkBlock()

	if turtle.getItemCount(1) > 0 then
		while not turtle.detectDown() do
			turtle.select(1)
			turtle.placeDown()
		end
	else
		print("No Blocks in slot 1!!!!")
		sleep(10)
		checkBlock()
	end

end


function up()
	while turtle.detectUp() do
		turtle.digUp()
	end
	turtle.up()

end


function digUp()
	while turtle.detectUp() do
		turtle.digUp()
	end
end



function down()
	while turtle.detectDown() do
		turtle.digDown()
	end
	turtle.down()

end


function digDown()
	while turtle.detectDown() do
		turtle.digDown()
	end
end

function turnRight(e)
	for i1=1, e, 1 do
		turtle.turnRight()
	end
end


function turnLeft(e1)
	for i2=1, e1, 1 do
		turtle.turnLeft()
	end
end


print("Lenght: ")
local lenght = read()


startTunnel(lenght)