bevy/crates/bevy_scene
Jakub Łabor e1d741aa19 bevy_ecs: ReflectComponentFns without World (#7206)
# Objective

Ability to use `ReflectComponent` methods in dynamic type contexts with no access to `&World`.

This problem occurred to me when wanting to apply reflected types to an entity where the `&World` reference was already consumed by query iterator leaving only `EntityMut`.

## Solution

- Remove redundant `EntityMut` or `EntityRef` lookup from `World` and `Entity` in favor of taking `EntityMut` directly in `ReflectComponentFns`.
- Added `RefectComponent::contains` to determine without panic whether `apply` can be used.

## Changelog

- Changed function signatures of `ReflectComponent` methods, `apply`, `remove`, `contains`, and `reflect`.

## Migration Guide

- Call `World::entity` before calling into the changed `ReflectComponent` methods, most likely user already has a `EntityRef` or `EntityMut` which was being queried redundantly.
2023-02-03 05:53:58 +00:00
..
src bevy_ecs: ReflectComponentFns without World (#7206) 2023-02-03 05:53:58 +00:00
Cargo.toml bevy_reflect: Fix deserialization with readers (#6894) 2023-01-04 22:03:31 +00:00