diff --git a/content/news/030/index.md b/content/news/030/index.md index a29eb4008..c301bcea5 100644 --- a/content/news/030/index.md +++ b/content/news/030/index.md @@ -385,6 +385,44 @@ for expressively abstracting over user input. Supports local multiplayer, enables input rebinding, integrates with `bevy_ui`, and handles chords! +### [Edict] + +New archetypes based ECS implementation by [@zakarumych](https://github.com/zakarumych). + +The novel feature of [Edict] is entity ownership implemented via reference counting. +This optional feature allows creating owned kind of `Entity` "reference", +that ensures entity is alive and despawns it on drop. +Storing owning `Entity` in the component of another entity +creates ownership relation between those entities. +Even though `Entity` is an owning reference, +components of the entity are can be queried from `World` as usual. +Shared ownership is also available. + +Optimized for both high density `World`s with thousands of entities +and also for `World`s with lower number of entities spread among many archetypes. +[Edict] is aimed for wide range of game genres and use cases outside of games. + +Built-in change detection with epochs allows systems to query for components +that were updated since last run of that query, +or since any other epoch as defined by `Tracks` argument. +This opens possibility to have multiple POV on changes even in single system. +For example server-side netcode can track changes individually +for each client and query for changes since last ACK. +[Edict] optimizes iteration significantly when entities +with modified components are queried. + +Although ECS abbreviation implies, [Edict] does not come +with predefined `System` trait and systems scheduler. +We can call it ECQ (Entity-Component-Query) as an alternative to ECS. + +[Edict] is added to [ecs_bench_suite](https://github.com/rust-gamedev/ecs_bench_suite) +so anyone can compare performance in some trivial examples with other ECS. + +Development focus for February is making more public API, including unsafe parts, +to allow writing custom queries, implement schedulers with parallel execution etc. + +[Edict]: https://github.com/zakarumych/edict + ### [rafx] [][rafx-youtube-video]