r = peripheral.wrap("back")

function compareenergy()
	energy = r.getEnergyStored()
	maxenergy = 10000000
	percent = (energy / maxenergy) * 100
	return percent
end

while true do
	if (compareenergy() > 90) and  r.getActive() == true then
		print("On eteint le reacteur")
		r.setActive(false)
	elseif (compareenergy() < 75) and  r.getActive() == false then
		print("On allume le reacteur")
		r.setActive(true)
	end
	sleep(0.5)
end