Crate pite_core 

Core scene-graph primitives: node handles, the node tree, props, the node type registry and lifecycle dispatch.

Knows nothing about Python (pite-script), rendering (pite-render) or the scene file format (pite-scene). Those plug in through the traits re-exported here, which is where the crate boundaries are drawn.

Structs

Node

A node record. Data only: behaviour lives in crate::NodeTypeRegistry and crate::LifecycleSink, so the tree stays free of subsystem types.

NodeDesc

Input used to build a Node, e.g. from a scene file entry.

NodeId

Handle to a node inside a NodeTree.

NodeTree

The scene tree. Owns all nodes; dropping a subtree drops its scripts.

NodeTypeRegistry

Registry for node types. New nodes = new registration, never a core match-statement edit.

Props

String→value prop map with typed accessors. Unknown props preserved.

ScriptRef

Script attachment: project-relative path plus the exported class name.

SignalDef

A signal is a name plus ordered payload type names, registered at class-load. connect/emit dispatch through the host; drop-disconnect is handled on node drop.

SignalRegistry

Vec2

2D vector shared by value (composition, not inheritance).

Enums

CoreError

Errors produced by the core tree and its registries.

PropValue

Typed prop values. New props don’t change the tree struct (§12).

Traits

LifecycleSink

Lifecycle dispatch seam (_ready, _process, _draw).

Functions

global_position

A node’s global position is its local position plus every ancestor’s, up to the root. Nodes without a position prop contribute nothing. Moving a parent carries children.

Type Aliases

NodeFactory

Factory producing a default node record for a registered type.

Result

Convenience alias for core results.