[0.17.4] Combinators keep outputting when unpowered

[Zaflis]

Decider and arithmetic combinators shouldn't output anything when they don't have power, but currently they do. Only if you let them have power for a moment while they have an input signal. Then remove power pole and the output remains on.

Reproduction:
First make sure you build in non-powered area. Place for example a constant combinator sending A=100 to decider combinator, which has (Each =/= 0, Output Each input count) which will just pass along A=100 but not yet. Now with power off the output should be empty. Let the combinator "take a sip of energy" by quickly adding a connected powerpole and take it away, output should still show A=100 while the combinator is blinking out of power warning.

decider.png (1.05 MiB) Viewed 1414 times

This bug breaks some power switch related setups, especially the remote control switch.

[credomane]

This is by design. They just won't update their output anymore until they receive power again.

[Zaflis]

Really? All i wanted to do was toggle a rail signal green while being far away. I can't open UI for constant combinator so power switch was my only hope. But if the power switch toggle can't be carried over to the rail signal, i can't negate the other signal that makes train stop before station. I can't forcefully order train to go somewhere close to me because the signal is red.

Technically when i flick the power switch the rail signal actually does remotely turn green. But when i turn it back off it remains green - forever. No longer controlled by the main signal which was tracking how much ore the storage has.

[Loewchen]

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