[Automation] Add contamination level signal to sluices

[ihsoft]

In the game lore, this building is already tracking the water contamination level. So it would be natural to expose this signal to the scripts. However, it raises the question of where to host this functionally. Today, sluices don't have own component and are served via the Switch component. <ybe, we need a new component now.

[kmcbride3]

Not sure if this helps, but using the access operators, I was able to get the contamination value of a sluice via (getnum Sluice.Contamination) for custom automation scripts. Not necessarily for this enhancement, but I was also able to get the Sluice's downstream depth reading via (getnum Sluice.TargetDepth).

[ihsoft]

Sure, you can use get operator to get the value, but you won't get notifications if the value changes. Only signals can notify about the value change.

[kmcbride3]

Sorry, I misunderstood the context of your mention of sluices not having their own component. That said, I've had success using the Debug.Ticker signal to trigger a rule that creates a custom signal with these values, which I can then use in other rules reliably.