James Liu 8eb0440f1e Hierarchy commandization (#4197) ... ## Objective Implement absolute minimum viable product for the changes proposed in bevyengine/rfcs#53. ## Solution - Remove public mutative access to `Parent` (Children is already publicly read-only). This includes public construction methods like `Copy`, `Clone`, and `Default`. - Remove `PreviousParent` - Remove `parent_update_system` - Update all hierarchy related commands to immediately update both `Parent` and `Children` references. ## Remaining TODOs - [ ] Update documentation for both `Parent` and `Children`. Discourage using `EntityCommands::remove` - [x] Add `HierarchyEvent` to notify listeners of hierarchy updates. This is meant to replace listening on `PreviousParent` ## Followup - These changes should be best moved to the hooks mentioned in #3742. - Backing storage for both might be best moved to indexes mentioned in the same relations.		2022-07-10 20:29:06 +00:00
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src	Hierarchy commandization (#4197)	2022-07-10 20:29:06 +00:00
Cargo.toml	depend on dioxus(and bevy)-maintained fork of stretch (taffy) (#4716)	2022-06-21 22:57:59 +00:00