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# Objective - Hierarchy tools are not just used for `Transform`: they are also used for scenes. - In the future there's interest in using them for other features, such as visiibility inheritance. - The fact that these tools are found in `bevy_transform` causes a great deal of user and developer confusion - Fixes #2758. ## Solution - Split `bevy_transform` into two! - Make everything work again. Note that this is a very tightly scoped PR: I *know* there are code quality and docs issues that existed in bevy_transform that I've just moved around. We should fix those in a seperate PR and try to merge this ASAP to reduce the bitrot involved in splitting an entire crate. ## Frustrations The API around `GlobalTransform` is a mess: we have massive code and docs duplication, no link between the two types and no clear way to extend this to other forms of inheritance. In the medium-term, I feel pretty strongly that `GlobalTransform` should be replaced by something like `Inherited<Transform>`, which lives in `bevy_hierarchy`: - avoids code duplication - makes the inheritance pattern extensible - links the types at the type-level - allows us to remove all references to inheritance from `bevy_transform`, making it more useful as a standalone crate and cleaning up its docs ## Additional context - double-blessed by @cart in https://github.com/bevyengine/bevy/issues/4141#issuecomment-1063592414 and https://github.com/bevyengine/bevy/issues/2758#issuecomment-913810963 - preparation for more advanced / cleaner hierarchy tools: go read https://github.com/bevyengine/rfcs/pull/53 ! - originally attempted by @finegeometer in #2789. It was a great idea, just needed more discussion! Co-authored-by: Carter Anderson <mcanders1@gmail.com>
17 lines
639 B
TOML
17 lines
639 B
TOML
[package]
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name = "bevy_transform"
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version = "0.6.0"
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edition = "2021"
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description = "Provides transform functionality for Bevy Engine"
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homepage = "https://bevyengine.org"
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repository = "https://github.com/bevyengine/bevy"
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license = "MIT OR Apache-2.0"
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keywords = ["bevy"]
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[dependencies]
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# bevy
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bevy_app = { path = "../bevy_app", version = "0.6.0" }
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bevy_ecs = { path = "../bevy_ecs", version = "0.6.0", features = ["bevy_reflect"] }
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bevy_hierarchy = { path = "../bevy_hierarchy", version = "0.6.0"}
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bevy_math = { path = "../bevy_math", version = "0.6.0" }
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bevy_reflect = { path = "../bevy_reflect", version = "0.6.0", features = ["bevy"] }
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