startup

function check_on ()
  reactor = peripheral.wrap("back")
  state = reactor.isActive()
  return state
  end

function check_damage ()
  reactor = peripheral.wrap("back")
  damage = reactor.getStackInSlot(1)["dmg"]
  return damage
  end

function broadcast (message)
  modem = peripheral.wrap("front")
  modem.open(1)
  modem.transmit(1,1,message)
  end

while true do
  state = check_on()
  if state == true then
    damage = check_damage()
    broadcast({true,damage})
    sleep(10)
  else
    broadcast({false,damage})
    sleep(60)
  end
end