UGSD! - New Program

1. Readded 3x3 tunnel.

1. Two preloaded tunnel sizes (2x2, 2x3).
2. Custom length of tunnel, in meters.

-- Writen by Falco.
-- My CC Profile: http://www.computercraft.info/forums2/index.php?/user/7198-falco/

-- function tunnel3x3 is currently disabled due to a bug.

version = " 0.1"

function clear()
	shell.run("clear")
	print("UGSD (Underground Shaft Digger)." .. version)
	print("--------------------------------------")
	print("")
end

function tunnel2x2()
	clear()
	write("Please choose the length of the tunnel, in meters> ")
length = read()
for i = 1, tonumber(length) do
   turtle.refuel()
   turtle.dig()
   turtle.forward()
   turtle.digUp()
   turtle.up()
   turtle.turnLeft()
   turtle.dig()
   turtle.down()
   turtle.dig()
   turtle.turnRight()
end
	startup()
end

function tunnel2x3()
	clear()
	write("Please choose the length of the tunnel, in meters> ")
length = read()
for i = 1, tonumber(length) do
   turtle.refuel()
   turtle.dig()
   turtle.forward()
   turtle.digUp()
   turtle.turnLeft()
   turtle.dig()
   turtle.up()
   turtle.dig()
   turtle.turnRight()
   turtle.turnRight()
   turtle.dig()
   turtle.down()
   turtle.dig()
   turtle.turnLeft()
end
	startup()
end

--function tunnel3x3()
--	clear()
--	print("Please choose the length of the tunnel, in meters> ")
--	length = read()
--for i = 1, tonumber(length) do
--   turtle.refuel()
--   turtle.digDown()
--   turtle.down()
--   turtle.digDown()
--  turtle.down()
--   turtle.digDown()
--   turtle.down()
--   turtle.dig()
--   turtle.forward()
--   turtle.digUp()
--   turtle.turnLeft()
--  turtle.dig()
--   turtle.up()
--   turtle.dig()
--   turtle.digUp()
--   turtle.up()
--   turtle.dig()
--   turtle.turnRight()
--   turtle.turnRight()
--   turtle.dig()
--   turtle.down()
--   turtle.dig()
--   turtle.down()
--   turtle.dig()
--   turtle.turnLeft()
--end
--end

function startup()
	clear()
	print("Please choose a tunnel size from the menu: ")
	print("")
	print("[1] 2x2, Must be placed on the left!")
	print("[2] 2x3, Must be placed in the center!")
--	print("[3] 3x3, Must be placed in the center!")
	print("[3] Exit")
	startupc = io.read()
	if startupc == "1" then
		tunnel2x2()
	elseif startupc == "2" then
		tunnel2x3()
--	elseif startupc == "3" then
		tunnel3x3()
	elseif startupc == "3" then
	print("")
	shell.run("reboot", 2)
	end
end
startup()