Fluid wagon connection category

half a cat · Post by **half a cat** » Thu Sep 11, 2025 4:09 am

TL;DR

Add a connection category in fluid wagon prototypes that determines which pumps can fill or drain them.

What?

Fluid wagon prototypes would have a connection category. Pumps would only connect to fluid wagons if they have a compatible connection category.

Why?

So that fluids can be restricted to special fluid wagons or excluded from rail shipping. If a mod uses special pipes and pumps for molten metal, for example, then the mod could allow molten metal in special fluid wagons but not ordinary fluid wagons.

Post by **Koub** » Tue Sep 16, 2025 1:52 pm

[Koub] Moved to Modding interface requests from Ideas and Suggestions.

MrSmoothieHuman · Post by **MrSmoothieHuman** » Wed Sep 17, 2025 1:14 pm

+1, seems like a nice feature to have - i can think of a couple mods that'd make good use of this

Osmo · Post by **Osmo** » Wed Sep 17, 2025 1:22 pm

+1, special pumps for special wagons opens quite a few possibilities

protocol_1903 · Post by **protocol_1903** » Thu Sep 18, 2025 5:20 am

Not NPT compatibility hell again

But +1, actually

Post by **boskid** » Mon Sep 29, 2025 2:55 pm

Ok, added FluidWagonPrototype::connection_category for 2.0.69.

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