Adds a combinator that reads inventories, fuel and equipment grid of locomotives, wagons, cars, furnaces, assemblers, roboports, rocket silos and reactors.
Do you think it would be a good idea for your mod with Space Age to have the variable 'R', be valued at 1 or 2? Since the Rocket Silo can hold up to two rockets, 'R' could be set to 1 when one rocket is ready, and 2 when both rockets are ready.
I looked into this; the current signals reflect the internal state of the entity. There are actually not two rockets ready, there is one ready and one 100% done.