https://lua-api.factorio.com/2.0.75/classes/LuaItemCommon.html#item_number

The description "The unique identifier for this item, if any. " Doesn't indicate what does have unique numbers, or under what conditions (like if a tagless item-with-tags doesn't, and when it does have tags, it is unique ...

It seems like the event is far less useful without having a specific thing being clicked on. I can understand there being conflicts with fungible items and opening in the hotbar, but if you wanted an item-with-tags, or a specific selection concept, or an item-with-inventory, you can't know which ...

Localising startup errors has a problem that locales aren't even loaded until the game is after the data stage (anything but core, presuming). I imagine there might be a lot of front-packing of memory structures relevant to game logic, before loading localisations, which although 'constant', could ...

A side note is tile-rotation is an always-on thing for blueprints. There is "already a problem" where if someone rotates a blueprint with hazard concrete, the lines are now going the "wrong way" and would be out of place, when one only wanted to rotation the position of tiles, not the direction. I ...

Here's a mod which exposes the behavior:

Edit: Also, a second weird note of the behavior is the directions are "restarted" at each tile, so if you copy existing tiles and rotate, they rotate "twice". The directions are sort-of non-linear, that there's no "constant mapping" of direction to tile ...

Context: I was allow refined-concrete "rotate" through all the colors, to make alternate colors buildable without items.
Collision: The tile can only go through three rotations, because it (from a dev) has rotation cooked into it - north / east / south / west, an unexpected artifact

Recommended ...

Can't you just read that from the player's LUAEntity?

allow_dispatching_robots

The character doesn't exist, at least can't be retrieved when, the player is in a vehicle. I haven't checked if the LuaEntity is still valid when the player is in a vehicle, if one had it already. It'd be a little ...

There exists what feels like a rather arbitrary limitation, that one can't read "non-Lua" shortcuts toggle state. I'm specifically trying to read the toggle-personal-roboport shortcut, so a player can know if it were accidentally toggled.

Only custom shortcut prototypes with the action type "lua ...

This topic came up again in a discussion. The idea was to add a separate key for 'exit map/remote view' and make the default "open menu" no longer exit the map. If they're both bound to escape, it is invisible to existing players (as long as exit map overrides open menu, then open menu works on the ...

1) I'm not sure if any particularly stood out - I might say Mobile Factory, which I was involved in for a while, which heavily used metatables - an incredibly large amount were running around, nearly everything got one. I think some of the code was inspired from Mining Drones, but there is ...

What you expected:
1) Multiple equipment gets inserted into armor
2) Changing the character during on_player_placed_equipment does not "cancel" the rest of the events

What happens:
1) Multiple equipment gets inserted into armor
2) Changing the character during on_player_placed_equipment "cancels ...

Thanks for replying. I think watching on_player_controller_changed, in addition, might solve my mod's "issue" then.

What you expected:
Deselecting an entity always raises on_selected_entity_changed when it's reasonable to do so.

What happens:
It doesn't. The tooltip changes and everything

To reproduce:
/c
script.on_event(defines.events.on_selected_entity_changed, function(event)
game.print(event.tick)
end ...

Also noting: a recipe which isn't active (the machine isn't crafting but shows the recipe) can have the modules inserted. Only when a recipe is active do the modules refuse to insert.

Recreation:
Have a recipe which doesn't accept modules, but the furnace does. A simple example:
local steel_recipe = data.raw.recipe["steel-plate"]
steel_recipe.allow_productivity = false


Mod:
furnace_module_oddity_0.0.1.zip


Place modules in a furnace:
weird_modules-2.jpg


Save file ...

What you expect:
The machine - non-square (rectangular) crafting machine with fluid_boxes and fluid_boxes_off_when_no_fluid_recipe = true
The machine can be placed, and if you try to rotate it, it doesn't rotate (conventional behavior for assemblers), and does not raise on_player_rotated_entity , or ...

In 2.0, a setting on assembling-machines was added:
fluid_boxes_off_when_no_fluid_recipe which is default false. By default, a non-square / rectangular assembling machine with fluid boxes can rotate after being placed.

2) ' If you want to change it to a localized string, it can't be called a key anymore. '
I don't understand this statement. Yes. Changing the type permitted changes the type permitted.

Can't be called a key. Because it's not a key. And right now it's called a key.

Yes, and that's why any ...

Small desired edits: Nth being the length of the pre-defined parameters, localised parameters being n+1 of the localised string, etc

It receives a parameter from the outside. How do you suppose that should be passed to a fully specified localized string?

Hence also the word "key" in the name of the property. The key being the name of the locale string it uses to look it up. If you want to change it to a localized string, it ...