Factorio Forums

I'm the author of Auto Lamp and I'm trying to get Factorio to place lamps into the same undo action across multiple ticks. Specifically, my mod creates 0~1 lamps every tick in a selected area and I want to be able to undo an entire selection at once. The issue is that while setting "item_index = 1" works for undo actions within a single tick, it doesn't seem to work at all for undo actions from previous ticks. I've made a demo branch on my repo to show this. Just use the tool to select multiple power poles and each power pole will gain 2 lamps which will undo together, but each pole's will undo in sequence. (Poles must not have existing lamp coverage.) I mostly want an answer about whether this is actually a bug, I imagine this code isn't used often so it could slip through, or that I'm just using it wrong. Thanks

It looks like the lua docs were done incorrectly. It's actually "undo_index". I've fixed them for the next release.

Thanks so much!

Just adding that I didn't notice because it IS item_index with entity.order_deconstruction

That's also wrong lua-doc wise, and is also undo_index. I've also fixed that one for the next release.

Weird, that one did work.