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# Objective It is possible to manually update `GlobalTransform`. The engine actually assumes this is not possible. For example, `propagate_transform` does not update children of an `Entity` which **`GlobalTransform`** changed, leading to unexpected behaviors. A `GlobalTransform` set by the user may also be blindly overwritten by the propagation system. ## Solution - Remove `translation_mut` - Explain to users that they shouldn't manually update the `GlobalTransform` - Remove `global_vs_local.rs` example, since it misleads users in believing that it is a valid use-case to manually update the `GlobalTransform` --- ## Changelog - Remove `GlobalTransform::translation_mut` ## Migration Guide `GlobalTransform::translation_mut` has been removed without alternative, if you were relying on this, update the `Transform` instead. If the given entity had children or parent, you may need to remove its parent to make its transform independent (in which case the new `Commands::set_parent_in_place` and `Commands::remove_parent_in_place` may be of interest) Bevy may add in the future a way to toggle transform propagation on an entity basis. |
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Bevy Transform
This crate is largely a 1:1 port from legion_transform (ecs: legion, math: nalgebra) to bevy (ecs: bevy_ecs, math: glam)