reactor control

local reactor = peripheral.wrap("bottom")
local max = 10000000
local upper = 0.65
local lower = 0.35
local upperTotal = max * upper
local lowerTotal = max * lower
local iterations = 0
while (true) do
    local energy = reactor.getEnergyStored()
    if energy > upperTotal then
        reactor.setActive(false)
    end
    if energy < lowerTotal then
        reactor.setActive(true)
    end
    if iterations % 60 == 0 then
        print(string.format("Running for %d minutes", iterations/60))
    end
    sleep(1)
    iterations = iterations + 1
end