There is no network 0. The network id is “binary coded” and a set bit means that a station is part of that network. If you want to have distinct networks, you need to use single bits, so 1, 2, 4, 8, 16, and so on.

0 is “no bit set” and a station with that value is not part of any network (no bit ...

With the miniloader redux mod, I have entities that look like this:

Screenshot 2025-11-18 at 11.14.23.png

This is a freshly minted loader just sitting there. If you open the GUI, it opens the circuit network sub-GUI and shows red and green connections. That is because internally, the miniloader ...

Thanks. Appreciate you pointing those out. This is such a big API, I always learn new things.

I have a localised string that looks like this: open_gui_shift=Open GUI\n[font=default-semibold][color=128,206,240]Shift:[/color][/font] Open location on map

When I use this text as a tooltip, it renders like this:


Screenshot 2025-10-20 at 21.33.25.png


but when I use it as a caption for a ...

Hi,

I have a gui with a number of elements (for train stations and trains). I want to be able to hover over a gui element (usually a piece of text like "xyz station" or "abc train") and that should show a minimap of either the train or station position.

There seems to be no rich text element for ...

Oh, that was non-obvious to me. Thanks for the explanation!

Thanks for the explanation. However, then what is the passive provider logistic point within the roboport used for?

This is a regular roboport. It has an outstanding Robot request for 50 construction robots. It also has 50 logistics robots stored inside that are ready to move things.

Next to the roboport is a storage chest with 50 construction robots. Yet, the request is red and it has satisfaction of 0/50 ...

also https://lua-api.factorio.com/latest/cla ... mber_index should probably be defined using defines.logistic_member_index

calling entity.get_logistic_point() on a cargo landing pad entity yields a single LuaLogisticPoint.

However, it is not clear, which constant can be used to call entity.get_logistic_point(defines.logistic_member_index.<mumble>)

It is not defines.logistic_member_index.logistic_container ...

The requester and buffer chests (which are the only types that can actually request things from the logistics network) show "filter" in their tooltip:



Screenshot 2025-10-14 at 15.05.45.png



Shouldn't that read "requests"? "filter" makes only sense for a storage chest (which has a filter).

Following up on my own post: Having this would be especially beneficial for using mods in data/settings stage, as those don't have `script` available and there is not a good way to find the current mod name. As `require` works fine in those stages (and the keys in the `package.loaded` table have the ...

Both standard lua and the Factorio lua use the package.loaded table to manage files that have already been loaded. However, in Factorio, the standard implementation has been replaced by a custom implementation (it says so at https://lua-api.factorio.com/latest/auxiliary/libraries.html#modified ...

What do you want to achieve exactly?


Well, ideally I could do something like this:

local A = {}
package.loaded[package.key(...)] = A

using a hypothetical `package.key` functionthat would create the correct key from the varargs that get passed in.

In vanilla lua, you can do that:

local A ...

Hi,

so I have two files, A.lua and B.lua:

A.lua:
local A = {}

-- manage circular dependencies
local _pkgname = ...
package.loaded['__' .. script.mod_name .. '__/' .. _pkgname:gsub('%.', '/') .. '.lua'] = A
-- manage circular dependencies

local B = require('some.thing.B')


B.lua:
local B ...

I’d consider “mark it clearly in the docs” a reasonable outcome. I spent quite some time chasing this and trying to reproduce the problem.

Another possible fix would be “only ever return string keys” but I understand that this would break some existing mods.

So it seems there is an explanation to the behavior but I still think it is kind of a bug. The station in question looks like this:

Screenshot 2025-09-14 at 16.43.36.png

There are two rails. One straight rail that the station is connected to and a curved rail that connects (on the left side) to ...

So I have a train. The train is departing a station (wait_station -> on_the_track) and has a path (and a path_end_rail, but not a path_end_station):

Screenshot 2025-09-14 at 08.52.06.png

If I ask the train manager to calculate the path for the train itself, it works fine:

game.train_manager ...

<sad>, but not super-surprised. I assumed it would be something like this. Thank you for the thorough explanation, this helps me a lot to understand how the game sends events.

Let me see if I can figure out a workaround for my use-case.

(I don't think there is a way for a mod to register a ...

I have two mods. Let's call them "Logistic Train Network" and "Train Tracker". Both listen to `on_train_changed_state`.

When a train stops at a station (transition from `arrive_station` to `wait_station`), the first mod (Logistic Train Network) receives an event with `old_state` = 5 (arrive_station ...