Struct Binder 

pub struct Binder;

Resolves animation clip track targets to logical bone indices via a Rig.

Two main workflows:

1. Rig construction — build_rig walks the scene subtree to produce a Rig with ordered bone handles and paths.
2. Clip binding — build_clip_binding maps each track’s path to a bone index, lazily recording rest poses for newly animated nodes.

Implementations

impl Binder

pub fn build_rig(target: &dyn AnimationTarget, root_node: NodeHandle) -> Rig

Builds a Rig by walking the subtree rooted at root_node.

Every named descendant (and the root itself) becomes a bone entry. Bone paths are recorded relative to root_node so that the same rig topology can be matched against multiple clips.

pub fn build_clip_binding( target: &mut dyn AnimationTarget, rig: &Rig, clip: &AnimationClip, ) -> ClipBinding

Builds a ClipBinding mapping clip tracks to rig bone indices.

For every track whose crate::clip::TrackMeta::path matches a bone path in the rig, a TrackBinding is emitted. Nodes receiving their first animation binding get their current transform lazily recorded as the rest pose.

pub fn bind( target: &mut dyn AnimationTarget, root_node: NodeHandle, clip: &AnimationClip, ) -> (Rig, ClipBinding)

Convenience: builds a rig and a clip binding in one call.

Equivalent to calling build_rig followed by build_clip_binding.