Add `on_pre_marked_for_deconstruction`, or fire `on_marked_for_deconstruction` before any entity changes

[curiosity]

I’m not really sure if it was answered but the fluid is pushed out on deconstruction being ordered because pipes are disconnected when marked for deconstruction so fluid doesn’t keep flowing through things to be deconstructed. Once disconnected they can’t push anything anywhere.

Thank you for the explanation. That's also a good reason for the mechanic, as opposed to trying to account for a nebulous situation a player can trivially solve.

That's a great design discussion, but I don't want the heat to get my modding interface request overlooked or deleted

Hold on, but the fluid doesn't go anywhere, does it? It just get pushed to the neighboring pipes, that's shouldn't be so different from 1.1 from mod PoV. I assume any fluid that didn't fit into the remaining fluid network (if any is left) will stay in the deconstructed entity. If anything, this should fit your use case better.

[protocol_1903]

I’m not really sure if it was answered but the fluid is pushed out on deconstruction being ordered because pipes are disconnected when marked for deconstruction so fluid doesn’t keep flowing through things to be deconstructed. Once disconnected they can’t push anything anywhere.

That makes sense, thanks for the explanation.

Hold on, but the fluid doesn't go anywhere, does it? It just get pushed to the neighboring pipes, that's shouldn't be so different from 1.1 from mod PoV. I assume any fluid that didn't fit into the remaining fluid network (if any is left) will stay in the deconstructed entity. If anything, this should fit your use case better.

If it doesn't fit it's just voided. So if you have a tank and a pipe connected, both at 50% capacity, then mark the tank for deconstruction, it would push 50 units into the pipe then delete the rest of it. Although yeah, it really should just stay in that entity/entities.

[curiosity]

If it doesn't fit it's just voided. So if you have a tank and a pipe connected, both at 50% capacity, then mark the tank for deconstruction, it would push 50 units into the pipe then delete the rest of it. Although yeah, it really should just stay in that entity/entities.

Then yeah, should be asking for that instead. Seems more likely.