Item is the first kind to use the `def.renderer` escape hatch (custom
React component with `useGLTF` + drei + interactive widgets) — not
expressible as a pure `def.geometry`. Catalog-backed + multi-host
(free / wall / wall-side / ceiling).
Files added (packages/nodes/src/item/):
- schema.ts: re-exports ItemNode from core.
- parametrics.ts: empty groups[]. Item parametrics come from the
asset's catalog-defined interactive controls (toggles / sliders /
temperature) — too dynamic for the auto-inspector at Stage A.
Legacy ItemPanel renders the catalog-driven controls; Phase 5
Stage E will likely use parametrics.customPanel.
- definition.ts: capabilities (no `movable` — item move is bespoke
MoveItemContent that handles attachTo transitions floor↔wall↔
ceiling mid-drag; capability-driven dispatch keeps legacy mover),
parametrics, renderer (wrap-export of ItemRenderer), system
bundling ItemSystem + ItemLightSystem, toolHints matching the
user's screenshot (Place item / R rotate ccw / T rotate cw /
Shift free place / Esc cancel). defaults() casts an object
literal with a stub asset since asset is required by the schema;
createNode re-parses through ItemNode at runtime.
- renderer.tsx: wrap-export of legacy ItemRenderer (~280 lines with
useGLTF + interactive widgets — too much to duplicate at Stage A).
- system.tsx: bundles ItemSystem + ItemLightSystem.
- index.ts: barrel.
Files changed:
- packages/viewer/src/index.ts: new public exports for ItemRenderer,
ItemSystem, ItemLightSystem.
- packages/nodes/src/index.ts: appends itemDefinition.
- packages/editor/src/components/ui/panels/item-panel.tsx: panel
slider-drag fix recipe applied (nodeRef pattern, drop subscribed
updateNode dep, drop node from useCallback deps). Item panel has
scale + position + rotation sliders all subject to the cascade.
Item is the registry's stress test for `def.renderer` escape hatch.
GLB loading via useGLTF + drei works as-is; nothing in the registry
forces a pure-geometry shape on kinds that don't fit.
Phase 5 progress: shelf ✅ spawn ✅ wall ✅ fence ✅ slab ✅ ceiling ✅
door ✅ window ✅ item ✅. Nine kinds on the registry. Stair / roof /
zone / containers remain.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
