reactor-control.lua

local component = require("component")
local os = require("os")
local term = require("term")

if not component.isAvailable("br_reactor") then
  print("Not connected to a reactor.")
  return nil
end

local reactor = component.br_reactor

local MAX_ENERGY = 10000000
local MIN_ENERGY = MAX_ENERGY * 0.05
local DESIRED_ENERGY = MAX_ENERGY * 0.95
local percent = nil
local mode = "inactive"

while true do
  local storedEnergy = reactor.getEnergyStored()

  if mode == "inactive" and storedEnergy < MIN_ENERGY then
    mode = "active"
  elseif mode == "active" and storedEnergy > MAX_ENERGY then
    mode = "inactive"
  end

  if mode == "active" then
    if storedEnergy == 0 then
      percent = 0.0
    else
      percent = storedEnergy / DESIRED_ENERGY
    end
  else
    percent = 1.0
  end

  local controlRodCount = reactor.getNumberOfControlRods()
  local controlValue = percent * controlRodCount

  term.clear()

  local energyPercent = math.floor(reactor.getEnergyStored() / MAX_ENERGY)
  local percentText = string.format("%0.1f", energyPercent * 100)
  local productionText = string.format("%0.1f", reactor.getEnergyProducedLastTick())

  print("Mode: "..mode)
  print("Power: "..reactor.getEnergyStored().." RF ("..percentText.."%)")
  print("Production: "..productionText.." RF/t")
  print("Fuel: "..reactor.getFuelAmount().." mB")
  print()

  for i = 0, controlRodCount-1 do
    local rodPercent = 0.0
    if controlValue > 1.0 then
      rodPercent = 1.0
    elseif controlValue == 0.0 then
      rodPercent = 0.0
    else
      rodPercent = controlValue
    end

    controlValue = controlValue - rodPercent
    reactor.setControlRodLevel(i, rodPercent * 100)
    print("Control Rod "..(i + 1)..": "..string.format("%0.1f%%", rodPercent * 100))
  end

  os.sleep(10)
end

return nil