N42: big-brain (#1268)

Author: zkat

content/news/042/index.md

@@ -77,6 +77,42 @@ If needed, a section can be split into subsections with a "------" delimiter.
 
 ## Library Updates
 
+### [big-brain]
+
+[big-brain] ([GitHub][big-brain-github], [Discord][big-brain-discord]) by [@zkat]
+is a highly-parallel [Utility AI][big-brain-utility-ai] library
+for the Bevy game engine.
+
+[big-brain] recently tagged [v0.16.0][big-brain-v16],
+bringing with it a couple of breaking changes and a few goodies.
+
+Probably the biggest change in this release is removal of the blanket
+[`ActionBuilder`][big-brain-action-builder] and [`ScorerBuilder`][big-brain-scorer-builder]
+implementations for `Clone` types. This is a fairly significant breaking change,
+but one that is fairly easy to resolve: simply use the new `#[derive(ActionBuilder)]`
+and `#[derive(ScorerBuilder)]` macros to derive the necessary implementations
+for your Action and Scorer Components and you should be good to go.
+
+Finally, since the recent [merging of the bevy scheduler changes][big-brain-bevy-scheduler-changes],
+big-brain users should expect the next version of big-brain to bring with it
+some significant breaking changes to scheduling, so keep an eye out for that
+and be mindful of building a lot on top of the current [`BigBrainStage`][big-brain-stage]
+(which is used by the default `BigBrainPlugin`).
+
+_Discussions: [Mastodon][zkat-mastodon-ann]_
+
+[big-brain]: https://crates.io/crates/big-brain
+[big-brain-github]: https://github.com/zkat/big-brain
+[big-brain-discord]: https://discord.com/channels/691052431525675048/829441190067306596
+[@zkat]: https://github.com/zkat
+[big-brain-utility-ai]: https://en.wikipedia.org/wiki/Utility_system
+[big-brain-v16]: https://github.com/zkat/big-brain/releases/tag/v0.16.0
+[big-brain-action-builder]: https://docs.rs/big-brain/0.16.0/big_brain/actions/trait.ActionBuilder.html
+[big-brain-scorer-builder]: https://docs.rs/big-brain/0.16.0/big_brain/scorers/trait.ScorerBuilder.html
+[big-brain-bevy-scheduler-changes]: https://tech.lgbt/@alice_i_cecile/109815432105482093
+[big-brain-stage]: https://docs.rs/big-brain/0.16.0/big_brain/enum.BigBrainStage.html
+[zkat-mastodon-ann]: https://toot.cat/@zkat/109776883506682388
+
 ## Popular Workgroup Issues in Github
 
 <!-- Up to 10 links to interesting issues -->