startup

function milk()
  if turtle.compareTo(16) == false then
    print("No bucket detected in slot 1")
    sleep(10)
  end
  if turtle.compareTo(16) then
    turtle.select(1)
    if turtle.place() == true then
      print("Milked cow. Waiting 4k ticks..")
      turtle.placeDown()
      sleep(155)
    else
      print("No cow detected.")
      sleep(10)
      return
    end
  else
    print("No place for liquids")
    print("Trying again in 5 seconds..")
    sleep(5)
  end
end

while true do
  milk()
end