Factorio Forums

I've noticed that the regular pumps are not able to fast-replace 2 pipes, despite pump's entity prototype 'fast_replaceable_group' property being set to 'pipe'. A single pipe also can't replace a pump.

Could this be because the entities (pipe and pump) are 2 separate lengths and therefore can't fast-replace eachother?

I doubt this is a feature as if it were, the 'fast_replaceable_group' property wouldn't be set for pumps.

Here's a demo of what I'm talking about: https://youtu.be/5DXbe3Frrsk

Quite possibly that's a holdover from when pumps used to be 1x1. They got changed to 2x1 in 0.15. Keeping it there doesn't change anything in vanilla, but removing it might be a problem if any mods have a 2x1 pipe and expect them to be swappable.

Or a 1x1 pump.

Can you test if a pump can replace 1 pipe? Splitters are 1x2 and can replace one transport belt but not 2.

Yes I just tested that and no it doesn't work.

mrvn wrote: ↑

Sat Nov 06, 2021 8:35 pm

Or a 1x1 pump.

Can you test if a pump can replace 1 pipe? Splitters are 1x2 and can replace one transport belt but not 2.

I'm not asking for it to be removed, precisely the opposite!! I want it implemented fully! It's so inconvenient having to remove the pipes to place the pump.

Silari wrote: ↑

Sat Nov 06, 2021 7:06 pm

Quite possibly that's a holdover from when pumps used to be 1x1. They got changed to 2x1 in 0.15. Keeping it there doesn't change anything in vanilla, but removing it might be a problem if any mods have a 2x1 pipe and expect them to be swappable.

Didn't there used to be an start-up error if fast-replaceable entities weren't the same size? (or close) I see the problem as it can replace the first entity, but collides with another. Even if it "could" replace the other one, it is an exception that *might* only work with pipes (a big assembler probably should not fast-replace a dozen little ones, etc)

Honktown wrote: ↑

Sat Dec 04, 2021 9:52 pm

Didn't there used to be an start-up error if fast-replaceable entities weren't the same size? (or close) I see the problem as it can replace the first entity, but collides with another. Even if it "could" replace the other one, it is an exception that *might* only work with pipes (a big assembler probably should not fast-replace a dozen little ones, etc)

AFAIK, fast-replaceable hasn't ever had any checks. You might be thinking of next_upgrade which does require the bounding box, collision box, and fast replaceable group to be the same.

Thanks for the report however I don't think there is any bug here. Maybe some left overs. The pump used to be 1x1 and so would be fast-replicable with pipes. These days it isn't and so isn't. Maybe we could remove the group from them but I don't think it would be something we do in 1.1.x due to compatibility concerns. Maybe i'm wrong.

Rseding91 wrote: ↑

Mon Dec 06, 2021 1:34 am

Thanks for the report however I don't think there is any bug here. Maybe some left overs. The pump used to be 1x1 and so would be fast-replicable with pipes. These days it isn't and so isn't. Maybe we could remove the group from them but I don't think it would be something we do in 1.1.x due to compatibility concerns. Maybe i'm wrong.

Okay that's cool. I may make a post in suggestions for this to be implemented as it would be really helpful to fast replace pumps.