NC Fission Reactor control

local component = require("component")
local reactor = component.nc_fission_reactor

function stop()
    reactor.deactivate()
end

function start()
    reactor.activate()
end

function getEnergy()
    local max = reactor.getMaxEnergyStored()
    local current = reactor.getEnergyStored()
    local percent = math.ceil(100*current/max)
    return percent
end

while true do
    local currentEnergy = getEnergy()
    if currentEnergy >= 90 and reactor.isProcessing() then
        stop()
    elseif currentEnergy <= 25 and reactor.isProcessing() == false then
        start()
    end
end