local args = { ... }

rednet.open("right")
while true do
	-- we are using wireless to get the distance
	-- so the master should be aligned with the slaves
	local id, mess, dist = rednet.receive()
	if mess == args[1] then
		rednet.send(id, "ack")
		turtle.up()
		for i = 1, dist do turtle.back() end

		print("I will leave again in 5 seconds...")
		sleep(5)
		print("Bye!")

		for i = 1, dist do turtle.forward() end
		turtle.down()
		rednet.send(id, "return")
	end
end

-- TODO: activate redstone for the buildcraft engine