Simple reactor control

-- Connect to a reactor on the back port of the computer
local reactor = peripheral.wrap("back")

-- Max level is fixed for all reactor sizes?
local reactorMaxEnergyCapacity = 10000000

-- initialize variables outsize loop. marginally more efficient server side
local reactorStoredEnergy = 0
local reactorStoredEnergyPercentage = 0

-- While true is an endless loop
while true do
  -- Get the amount of RF stored in the reactor
  reactorStoredEnergy = reactor.getEnergyStored()

  -- Calculate the percentage of energy stored
  reactorStoredEnergyPercentage = (reactorStoredEnergy/reactorMaxEnergyCapacity)*100

  -- Print to screen an informational message
  print("Energy level at: " .. reactorStoredEnergy .. " (" .. reactorStoredEnergyPercentage .. ")")

  -- If the reactor is active AND % of stored energy is 99 or above
  if reactor.getActive() and reactorStoredEnergyPercentage >= 99 then
    -- turn off the reactor
    print("Turning reactor off")
    reactor.setActive(false)
  elseif not reactor.getActive() and reactorStoredEnergyPercentage < 99 then
    -- otherwise IF the reactor is not active AND stored RF below 99%
    -- turn reactor on
    print("Turning reactor on")
    reactor.setActive(true)
  end

  -- Sleep for aproximately 20 ticks so we don't Overload the server unnecessarily
  os.sleep(1)
end