Nodes

In Perro, scene entries are represented by SceneNode. Every SceneNode carries identity and hierarchy metadata, while concrete node data is stored in SceneNodeData.

What SceneNode Is

SceneNode is the runtime wrapper around concrete node data. It stores hierarchy metadata (id, name, parent, children) and the typed inner node payload in data.

pub struct SceneNode {    pub data: SceneNodeData,    pub id: NodeID,    pub name: Cow<'static, str>,    pub parent: NodeID,    pub children: Option<Cow<'static, [NodeID]>>,}