startup

rednet.open("top")

while true do
  local senderId, message, distance = rednet.receive()

  -- disable all the current lights

  redstone.setOutput("left", false)
  redstone.setOutput("right", false)
  redstone.setOutput("front", false)
  redstone.setOutput("back", false)


  if message == "station_orange" then
    redstone.setOutput("left", true)
  end

  if message == "station_red" then
    redstone.setOutput("back", true)
  end

  if message == "station_blue" then
    redstone.setOutput("right", true)
  end

  if message == "station_green" then
    redstone.setOutput("front", true)
  end
end