mirror of
https://github.com/bevyengine/bevy
synced 2024-11-13 00:17:27 +00:00
5a5125671b
# Objective `ChangeTrackers<>` is a `WorldQuery` type that lets you access the change ticks for a component. #7097 has added `Ref<>`, which gives access to a component's value in addition to its change ticks. Since bevy's access model does not separate a component's value from its change ticks, there is no benefit to using `ChangeTrackers<T>` over `Ref<T>`. ## Solution Deprecate `ChangeTrackers<>`. --- ## Changelog * `ChangeTrackers<T>` has been deprecated. It will be removed in Bevy 0.11. ## Migration Guide `ChangeTrackers<T>` has been deprecated, and will be removed in the next release. Any usage should be replaced with `Ref<T>`. ```rust // Before (0.9) fn my_system(q: Query<(&MyComponent, ChangeTrackers<MyComponent>)>) { for (value, trackers) in &q { if trackers.is_changed() { // Do something with `value`. } } } // After (0.10) fn my_system(q: Query<Ref<MyComponent>>) { for value in &q { if value.is_changed() { // Do something with `value`. } } } ``` |
||
|---|---|---|
| .. | ||
| bevy_animation | ||
| bevy_app | ||
| bevy_asset | ||
| bevy_audio | ||
| bevy_core | ||
| bevy_core_pipeline | ||
| bevy_derive | ||
| bevy_diagnostic | ||
| bevy_dylib | ||
| bevy_dynamic_plugin | ||
| bevy_ecs | ||
| bevy_ecs_compile_fail_tests | ||
| bevy_encase_derive | ||
| bevy_gilrs | ||
| bevy_gltf | ||
| bevy_hierarchy | ||
| bevy_input | ||
| bevy_internal | ||
| bevy_log | ||
| bevy_macro_utils | ||
| bevy_math | ||
| bevy_mikktspace | ||
| bevy_pbr | ||
| bevy_ptr | ||
| bevy_reflect | ||
| bevy_reflect_compile_fail_tests | ||
| bevy_render | ||
| bevy_scene | ||
| bevy_sprite | ||
| bevy_tasks | ||
| bevy_text | ||
| bevy_time | ||
| bevy_transform | ||
| bevy_ui | ||
| bevy_utils | ||
| bevy_window | ||
| bevy_winit | ||