piston5

local modem = peripheral.wrap("top")
modem.open(1337)

function performAction(side)

  if side == 1 then
    rs.setOutput("left", true)
  elseif side == 2 then
    rs.setOutput("right", true)
  elseif side == 3 then
    rs.setOutput("left", false)
  elseif side == 4 then
    rs.setOutput("right", false)
  end

end

while true do

  event, modemSide, senderChannel, replyChannel, message, senderDistance = os.pullEvent("modem_message")

  if message == "eightOn" then
    performAction(1)
  elseif message == "nineOn" then
    performAction(2)
  elseif message == "eightOff" then
    performAction(3)
  elseif message == "nineOff" then
    performAction(4)
  end

end