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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| use bevy::prelude::*; | ||
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| /// A feature ID indicating the type of a geometric feature: a vertex, an edge, or (in 3D) a face. | ||
| /// | ||
| /// This type packs the feature type into the same value as the feature index, | ||
| /// which indicates the specific vertex/edge/face that this ID belongs to. | ||
| #[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, Reflect)] | ||
| #[cfg_attr(feature = "serialize", derive(serde::Serialize, serde::Deserialize))] | ||
| #[cfg_attr(feature = "serialize", reflect(Serialize, Deserialize))] | ||
| #[reflect(Debug, Hash, PartialEq)] | ||
| pub struct PackedFeatureId(pub u32); | ||
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| impl PackedFeatureId { | ||
| /// Packed feature id identifying an unknown feature. | ||
| pub const UNKNOWN: Self = Self(0); | ||
|
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| const CODE_MASK: u32 = 0x3fff_ffff; | ||
| const HEADER_MASK: u32 = !Self::CODE_MASK; | ||
| const HEADER_VERTEX: u32 = 0b01 << 30; | ||
| #[cfg(feature = "3d")] | ||
| const HEADER_EDGE: u32 = 0b10 << 30; | ||
| const HEADER_FACE: u32 = 0b11 << 30; | ||
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| /// Converts a vertex feature id into a packed feature id. | ||
| pub fn vertex(code: u32) -> Self { | ||
| assert_eq!(code & Self::HEADER_MASK, 0); | ||
| Self(Self::HEADER_VERTEX | code) | ||
| } | ||
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| /// Converts a edge feature id into a packed feature id. | ||
| #[cfg(feature = "3d")] | ||
| pub fn edge(code: u32) -> Self { | ||
| assert_eq!(code & Self::HEADER_MASK, 0); | ||
| Self(Self::HEADER_EDGE | code) | ||
| } | ||
|
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| /// Converts a face feature id into a packed feature id. | ||
| pub fn face(code: u32) -> Self { | ||
| assert_eq!(code & Self::HEADER_MASK, 0); | ||
| Self(Self::HEADER_FACE | code) | ||
| } | ||
|
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| /// Is the identified feature a face? | ||
| pub fn is_face(self) -> bool { | ||
| self.0 & Self::HEADER_MASK == Self::HEADER_FACE | ||
| } | ||
|
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| /// Is the identified feature a vertex? | ||
| pub fn is_vertex(self) -> bool { | ||
| self.0 & Self::HEADER_MASK == Self::HEADER_VERTEX | ||
| } | ||
|
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| /// Is the identified feature an edge? | ||
| #[cfg(feature = "3d")] | ||
| pub fn is_edge(self) -> bool { | ||
| self.0 & Self::HEADER_MASK == Self::HEADER_EDGE | ||
| } | ||
|
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| /// Is the identified feature unknown? | ||
| pub fn is_unknown(self) -> bool { | ||
| self == Self::UNKNOWN | ||
| } | ||
| } | ||
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| impl From<u32> for PackedFeatureId { | ||
| fn from(code: u32) -> Self { | ||
| Self(code) | ||
| } | ||
| } | ||
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| #[cfg(any(feature = "parry-f32", feature = "parry-f64"))] | ||
| impl From<crate::parry::shape::PackedFeatureId> for PackedFeatureId { | ||
| fn from(id: crate::parry::shape::PackedFeatureId) -> Self { | ||
| Self(id.0) | ||
| } | ||
| } |
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