Bevy 0.19リリース

Thanks to 261 contributors, 1185 pull requests, community reviewers, and our generous donors, we're happy to announce the Bevy 0.19 release on crates.io!For those who don't know, Bevy is a refreshingly simple data-driven game engine built in Rust. You can check out our Quick Start Guide to try it today. It's free and open source forever! You can grab the full source code on GitHub. Check out Bevy Assets for a collection of community-developed plugins, games, and learning resources.To update an existing Bevy App or Plugin to Bevy 0.19, check out our 0.18 to 0.19 Migration Guide.Since our last release a few months ago we've added a ton of new features, bug fixes, and quality of life tweaks, but here are some of the highlights:Next Generation Scenes: Our brand new, massively improved scene system for Bevy has finally landed! Ergonomically define scenes in our new BSN (Bevy Scene Notation) format in code via the bsn! macro or (in a future release) in assets. Scenes are composable, patchable, and dependency aware. No more manually pulling in all of the ECS and asset dependencies required to spawn something!Render Bigger Scenes Faster: We've moved even more work to the GPU and optimized the renderer in a number of areas. Bevy can draw even more things even faster!Contact Shadows: Shadow quality makes a huge difference to how "polished" your game looks. Bevy 0.19 adds contact shadows to the mix, dramatically improving shadow detail without the cost of full raytracing.More Feathers Widgets: Bevy's opinionated "editor tooling" widget collection got a ton of new widgets. It was also ported to BSN, making it much more pleasant to use!Text Input: Bevy UI finally has upstream support for text entry via the new EditableText component.Richer Text: Bevy now has more flexible font selection, with support for higher level features like "font families" and variable font properties.App Settings: We've added an official "app settings" framework, which can load and save settings from files and expose them as ECS resources.Post Processing Effects: We've added built in "vignette" and "lens distortion" post processing effects.Improved Skinned Mesh Culling: Skinned meshes can now take their animations into account when they are being culled.Next Generation Scenes #Bevy 0.19 introduces our brand new, massively improved scene system for Bevy. We've been working on this for a long time (years now!), and we are excited to finally get it in the hands of Bevy developers. It makes defining scenes in code (and ultimately in assets produced by the upcoming Bevy Editor) much nicer. It will also be used to build the upcoming Bevy Editor!BSN (Bevy Scene Notation) #BSN is an ergonomic Rust-like scene syntax which can be defined in Rust code via the bsn! macro and in .bsn asset files. If you were ever bothered by the verbosity and complexity of spawning complex collections of entities in Bevy, you will probably enjoy what BSN has to offer. BSN can be used to spawn anything in the ECS. This benefits all scenarios, but it is worth calling out explicitly that this makes Bevy UI code significantly easier to read and write.Some quick caveats: while Bevy 0.19 technically supports scene assets, we aren't yet shipping a first-party .bsn asset loader. This release focuses on the code-driven workflow, and we plan to roll out the asset driven workflow in a future release. Additionally, BSN is still hot off the presses and it will likely take a few releases for us to iron out the experience. It is plenty useful now, but expect some rough edges and missing features.In Rust, a bsn! expression is essentially a list of components to add to an entity:bsn! {

Player {

score: 0

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