guy smiley wrote: Sat Dec 13, 2025 5:58 am Yup, all sorted now, tyvm.

Glad to hear it. The documentation is the best part of Factorio's API, if you ignore it you are missing out.

FYI, it is not possible to directly reassign a LuaEquipmentGrid or LuaInventory object from one entity to another, i.e. change the owner of an existing object. The contents of the old one must be copied somehow into the new one that is automatically created for the new entity.

The error messages ...

+1 Agreed.

The Circuit Signal Wildcard will be filled in with the first signal that meets the condition. It will be filled in everywhere in the interrupt that the Circuit Signal Wildcard appears. It will *not* fill in slots containing the Item Wildcard, because it is a signal not an item. Unless I'm completely ...

There have been issues in the past with recipes not being usable as handcrafting intermediates. Some were modder mistakes and some were engine bugs, like this one: https://forums.factorio.com/viewtopic.php?p=540359&hilit=Handcrafting+intermediate#p540359

Check to see that you have all the flags ...

Unfortunately, for performance reasons the game does not validate the game state when it is saved, only when it is loaded. Some people make backup every day for this reason. If you have any sort of file backup application installed on your computer, you can look for older copies of the save file ...

I would suggest you remove the deepcopy and instead copy and paste the prototype from the base game file into your mod file for your "tier 1" loader. Then you can change every property to exactly what you want, and deepcopy the tier 1 prototype to make the tier 2 prototype, etc.

The upgrade planner ...

You mean the cloned boiler has *more* fluid than the original one? That's a good bug to report. I didn't initially understand from your use of the word "raising"-- the word "increasing" would be more correct here.

I confirmed the bug with your reproduction command. The first boiler has 50 water in ...

I was bored so I did a code review on all the mods in your save file. TWO mods stand out as ones which write to potentially dangerous session-global variables inside on_configuration_changed: "Long Range Delivery Drones" and "Corrundum". Removing one or both of them, loading it in single player, and ...

Cloning by definition copies all characteristics, including chest contents and fluid contents. If you want the new entity to be empty, you will have to empty it by script after cloning. Or you can use create_entity() and manually copy the properties that you want to preserve.

Can you provide any more details about your application and why an invisible container entity with interactions disabled is insufficient? A script could cause the player to open the container's gui even if the container itself is not clickable. The contents can be stored in the invisible ...

Can you provide any more details about your application and why an invisible container entity with interactions disabled is insufficient? A script could cause the player to open the container's gui even if the container itself is not clickable. The contents can be stored in the invisible container ...

This looks very similar to viewtopic.php?p=658117 which was supposed to have been fixed, but apparently isn't.

No, this is not possible. You can use Lua code in a Lua migration to destroy the old entities and make new ones depending on what mods are installed.

But migrations generally are supposed to be for things that happen in your mod alone, since you don't really control when they run. When things need ...

For my mod, I created a machine that uses underground pipe connections of a special "unpipable" connection category with a range of 1 instead of the regular fluid pipe connections. (to allow an implementation of unpipable fluids which require direct machine-to-machine transfer)


Can you attach ...

Not sure what about this is urgent, but I hope they can help. You're going to run Memtest on your computer now, right? That will show you if you need to replace your RAM to prevent future corruption.

Right, fast_replaceable_group is what actually defines what can be used in the upgrade planner. Set fast_replaceable_group to a unique value, set next_upgrade to nil, and it should work fine.

~~The mod files need to be inside a folder (named the same as the mod) inside the zip file.~~

JSON files normally cannot include comments. Try deleting the '--' and everything after it.

Okay, thanks! And just to be clear, does the offset change the actual area that the mining drill extracts resources from, or does it only change where the mining area visualization is drawn?

It looks like resource_searching_offset is not accessible from LuaEntityPrototype. Can you please add read access to it?