Regarding use depots to accept empty trains when the providers all have trains waiting for open destinations...

It's highly unlikely that a train tries to depart a requester at the same moment that a provider suddenly can accept another train. Thus, wouldn't almost every delivery start at a depot ...

I have a question. Usually (pretty often) you need to *conditionally* output a constant value. I.e., if A<B then C=10. Could you change "1" output option of a decider comb to the "constant"?


Yes, yes, yes! So many times I've had to follow an output=1 with a multiplier just to get the const ...

It was mentioned that saved games from 1.1 will continue to operate. Will rail blueprints made for 1.1 rail still be usable directly or will they need to be updated?

Thanks for the pointer. I suspected that might be the case and already have plans to fix my design.

Factorio v1.1.74 (steam/win64)

I'm experimenting with loop junctions and long trains (100 cars). The signalling within the loop junction is all chain signals so the train reserves its path before ever entering.

However, I recently witnessed (and can reproduce) a case where the train changed ...

Back to this...

I have a circuit that sets the depot signal only when the train is present, similar to the example you provided. However, without the depot signal, trains will still go to these stops because the name matches the return stop in their schedule. They arrive, depot signal remains ...

I don't expect you to fix train loading; that's my problem.

The question is: Why did LTN's "output combinator" change because some wayward assemblers mistakenly dropped something into an arriving train?

The trigger is a few inserters left holding stone, 7 of them to be exact. These get dropped in the train the moment it arrives and causes 7 stone to be added to the LTN "output" combinator even though they're not part of the original request. And it's definitely the output combinator I'm looking at ...

It definitely does. I even removed (actual remove, not just disconnect) everything except the LTN stop and the output is the same.

I've kept the state in a separate save if you want me to check anything else. For now, I'm going to destroy and recreate the LTN stop and see if the problem goes away.

LTN v1.16.7

I'm playing Space Exploration. I have a requester station ("Typhoonator") requesting "core fragments" and a provider ("Vulcanite Core Processing") providing cryonite, stone, and core fragments. (Both stations have incorrect names due to blueprint copying.)

Factorio 1.1.49 2022.01.16 ...

The problem was that the save was an Angel/Bob save and I didn't have those mods enabled while trying to load it. After enabling those mods, it loads again.

So it was going to fail but I expect it shouldn't fail quite this way.

-- Brian

I have an old saved game (from 0.18, I think) that I've loaded a dozen times recently (but never saved) so I could copy some old designs.

Suddenly it started crashing Factorio when loaded. Attached are the logs taken from crashes just before and just after a full reboot of my machine with no other ...

Thanks for the pointer.

I did consider that but breaking a blueprint into three or four different blueprints, each with a different set of materials just isn't practical. Not only would it be a very time consuming and error-prone manual process but it would have to be done anew any time changes were necessary on the design ...

Let me start by saying that Factorio is one of the very best games I've ever encountered and surely the best money I've ever spent given the number of hours I've played.

During the development of my self-building mega-factory blueprints ( https://factorioprints.com/view/-MNZWdWosuqr3vtaC2hD ), I've ...

There are a couple LTN log messages on which more detail would be helpful.

"No station providing...": Include the train length limits.

"No train found of length...": Include "cargo" or "fluid" detail.

I looked at something similar but, if I'm not mistaken, it'll still output the depot signal for a single tick. If the caching of the value was done the tick before (when the train landed) then presumably that is sufficient?

It's too bad that LTN can't double-check the "depot" signal before doing the final assignment.

Do you have a recommended circuit for this? I haven't figured out a circuit that's less than three gates while it takes only one gate to turn it off if non-empty.

Factorio 1.1.6
LTN v1.15.0

It seems that LTN will add schedules to trains at stops that were depots but are no longer.

I have a circuit that only sets the "depot" signal when there are no train contents at the train stop. The goal is to stop a non-empty train from going out again and delivering ...

Thanks. Too bad it doesn't rank it by signal value. That could be useful sometimes. Not a big enough benefit to justify the cpu cycles, I guess.