road2

-- build a road2


turtle.select(16)
turtle.refuel()
turtle.select(1)

-- 無線通信を受けて建設開始
while true do
  rednet.open("right")
  local id, msg = rednet.receive()
  print(id, msg)

  if msg == "start_build" then
    break
  end
end

for i=1, 40 do
  turtle.forward()
  turtle.digDown()
  if (i%5==1 or i%5==2 or i%5==3) then
    turtle.select(1)
  else
    turtle.select(2)
  end
  turtle.placeDown()
end

turtle.digDown()
turtle.down()
turtle.digDown()
turtle.down()
turtle.placeUp()