spine_runtime 0.2.2

Unofficial native Rust port of the Spine 4.3 runtime. Renderer-agnostic.
Documentation
// Spine Runtimes License Agreement
// Last updated April 5, 2025. Replaces all prior versions.
//
// Copyright (c) 2013-2025, Esoteric Software LLC
//
// Integration of the Spine Runtimes into software or otherwise creating
// derivative works of the Spine Runtimes is permitted under the terms and
// conditions of Section 2 of the Spine Editor License Agreement:
// http://esotericsoftware.com/spine-editor-license
//
// Otherwise, it is permitted to integrate the Spine Runtimes into software
// or otherwise create derivative works of the Spine Runtimes (collectively,
// "Products"), provided that each user of the Products must obtain their own
// Spine Editor license and redistribution of the Products in any form must
// include this license and copyright notice.
//
// THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
// BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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//! Update and reset cache entries built by
//! [`Skeleton::update_cache`](crate::skeleton::Skeleton::update_cache).

use crate::data::{BoneId, ConstraintId, SlotId};

/// One step of
/// [`Skeleton::update_world_transform`](crate::skeleton::Skeleton::update_world_transform),
/// in order.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum UpdateCacheEntry {
    /// Compute the bone's applied world transform.
    Bone(BoneId),
    /// Apply the constraint.
    Constraint(ConstraintId),
}

/// An object whose constrained pose is copied from its pose at the start
/// of each `update_world_transform`.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum ResetEntry {
    Bone(BoneId),
    Slot(SlotId),
    Constraint(ConstraintId),
}