DiaTunnel2

args = { ... }

if args[2] == "left" then
    turn = turtle.turnLeft
	turn2 = turtle.turnRight
else
    if args[2] == "right" then
        turn = turtle.turnRight
		turn2 = turtle.turnLeft
    end
end

if args[3] == nil then
	 lc = 1
else
	lc = tonumber(args[3])
end

function forward()
    refuel()

	repeat
		while turtle.dig() do end
	until turtle.forward()

	repeat until not (turtle.digUp() or turtle.digDown())
end

function refuel()
	while turtle.getFuelLevel() == 0 do
		print("Searching Fuel...")
		for j = 1, 16 do
			turtle.select(j)
			if turtle.refuel() then
				print("Success...")
				break
			end
		end
	end
end

for k = 1, lc do
	for i=0,args[1] do
		forward()
	end


	forward()

	turn2()
	forward()
	forward()
	turn2()
	turn2()
	forward()
	forward()

	forward()
	forward()
	forward()
	turn()
	forward()

	tmp = turn
	turn = turn2
	turn2 = tmp
end