for (int i = 0 ; i < number_of_active_lights ; i++) {
// if there are no inactive switches to turn on then let's break
if (inactive_switches.size() == 0){
for (int i = 0 ; i < number_of_active_lights ; i++) {
// if there are no inactive switches to turn on then let's break
if (inactive_switches.size() == 0){
inactive_switches[random_int].on()
// then remove that switch from the pool off switches that can be turned on
inactive_switches[random_int].on()
// then remove that switch from the pool off switches that can be turned on