PmWeather Flowing Fluids Compat

Protomanly's Weather normally treats rain as a weather event that does not spread through flowing fluids. This addon changes that behavior so rain can trigger flooding of flowing fluids. The change works by replacing the vanilla rain checks inside some Flowing Fluids base mixins with checks that read PmWeather's rain state, so the two mods can share the same weather logic.

The patch requires Flowing Fluids and ProtoManly's Weather, which must both be installed alongside it on NeoForge for 1.21.1. It is server-side only, so players who join a server running it do not need to install anything. The default setting leaves the flooding feature disabled, and the config must be changed to enable it, since turning it on alters some base Flowing Fluids behavior.

The author reports one known major issue: when rain stops, a lag spike can occur while the fluid drain runs, lasting a couple of seconds. The drain can also start on any server at any time a rain event is detected. Owners who enable the feature should test it on a copy of their world before using it on a live server.