Trying to paste the top row onto a straight line of belts going the same direction. Preview suggests that another underground belt is added (middle row), but after execution it isn't (bottom row). I don't think that the extra underground belt is a good thing (see https://forums.factorio.com/129883 ...

When trying to paste the top row onto a straight line of belt (middle row) going to the same direction, it adds additional underground belts that are absolutely not wanted (bottom row).

07-15-2025, 17-25-19.png

This is just a repro case, what I actually tried to copy&paste made a bit more sense ...

Rseding91 wrote: Sun Jun 22, 2025 7:28 pm Ok, I added it for the next release.

Thanks for adding neighbour_connectable. Unfortunately I still don't have access to fluid usage of fusion reactors, see my last post. Bug or feature request?

Thanks for the report however this is working as intended. The arms consume power when they start moving towards a chunk and don't constantly draw power while in operation. This is done on purpose to avoid constantly needing to touch the energy source memory and the performance of doing that as it ...

06-21-2025, 13-46-05.png

This is the energy consumption of a single asteroid collector. Looks to me as if the arm's energy is only consumed for a single tick, even though it is moving all the time.

Expected behavior: If there is enough power, the arm should consume the max power for the whole ...

I was testing some asteroid collector setups and was surprised to see that the collected chunks are completely missing from the production side of the statistics. I'd really expect this to be in line with mining drills and agricultural towers, where the generated resources appears in the production ...

Please take a look at TriggerEffectItem .

It is lacking all the extra fields that exist depending on the type, which are well documented for prototype stage. I don't know whether it's worth duplicating all that information, but it means that working with these in runtime stage currently doesn't ...

Fluid usage is here: https://lua-api.factorio.com/latest/classes/LuaEntityPrototype.html#get_fluid_usage_per_tick

Neighbor connectable I didn't include - what's the point in having it?


Fluid usage works for fusion generator (even though the documentation doesn't say so) but always returns nil ...

There is LuaItemPrototype::module_effects , but it is very difficult to properly calculate the effects of a module with given quality due to integer math and rounding going on. This problem got more serious with the addition of QualityPrototype::default_modifier . It's very difficult to reproduce ...

Implemented in 2.0.56 with the addition of LuaEntity::get_inventory_filter

Rseding91 wrote: Wed Jun 11, 2025 1:44 pm I've added the missing ones for the next release.

I still can't find these properties:
- FusionReactorPrototype.neighbour_connectable
- FusionReactorPrototype.max_fluid_usage

https://lua-api.factorio.com/latest/cla ... s_building

The list does not contain any of the space age building types, but they are buildings and are accepted by https://lua-api.factorio.com/latest/typ ... Flags.html "buildable-type"

I'd like to have access to these properties in runtime stage:

https://lua-api.factorio.com/latest/prototypes/AsteroidCollectorPrototype.html#arm_count_base
https://lua-api.factorio.com/latest/prototypes/AsteroidCollectorPrototype.html#arm_count_quality_scaling
https://lua-api.factorio.com/latest ...

Take a look at https://lua-api.factorio.com/latest/concepts/TechnologyModifier.html
It's missing many of the new things that came with SpaceAge.

I noticed the lack of quality if type == "unlock-quality" and the lack of space_location if type == "unlock-space-location".

There might be more missing ...

I stand corrected, https://lua-api.factorio.com/latest/pro ... ower_input is already available via https://lua-api.factorio.com/latest/cla ... ergy_usage

I'd like to have access to these properties in runtime stage:

Fusion Reactor:
https://lua-api.factorio.com/latest/prototypes/FusionReactorPrototype.html#neighbour_connectable
https://lua-api.factorio.com/latest/prototypes/FusionReactorPrototype.html#neighbour_bonus (can probably use the existing ...

I must be blind, but I can't find a way to read the fuel filter of ghosts. Would be really handy to know for my planned rate-calculator-like mod.

Please add such a method to LuaEntity or make it return semi-functioning LuaInventory instances

I'd like to have access to this property in runtime stage:
https://lua-api.factorio.com/latest/prototypes/EntityWithHealthPrototype.html#dying_trigger_effect

This is needed to properly calculate where promethium chunks are coming from, because the chunks are not spawning directly. I guess ...

I'd like to have access to this property in runtime stage:
https://lua-api.factorio.com/latest/prototypes/SpacePlatformStarterPackPrototype.html#surface

This is needed when calculating the game progression. I can read the surface from an existing space platform, but I can't know which surface ...

Please note that my request is not for having per-prototype rocket lift weights, but for having the one rocket lift weight available in runtime stage (without resorting to smuggling arbitrary data from data stage). Related, but still completely different.