The spatial-grid manager, scene-store subscriptions, and the viewer outliner's Object3D arrays are module-level singletons that previously lived for the whole page lifetime. When an app unmounted the Editor (e.g. navigating away from the 3D editor and back in an SPA host) they retained references to the disposed Three.js scene graph, which caused the app to freeze on re-entry as the stale data was replayed against a fresh scene. - initSpatialGridSync now returns the unsubscribe handle from its scene-store subscription so callers can detach it. - initializeEditorRuntime becomes reversible: it wires up the spatial grid, space detection and SFX bus on mount and returns a teardown closure that detaches both store subscriptions, clears the spatial grid manager, and truncates the viewer outliner's selected/hovered arrays in place. - The Editor component's runtime-init effect now returns that teardown, so the singletons are reset cleanly every time the Editor unmounts. - initSFXBus is now idempotent via an internal guard so repeated Editor mounts do not stack duplicate mitt listeners. Co-authored-by: Claude <noreply@anthropic.com>
@pascal-app/core
Core library for Pascal 3D building editor.
Installation
npm install @pascal-app/core
Peer Dependencies
npm install react three @react-three/fiber @react-three/drei
What's Included
- Node Schemas - Zod schemas for all building primitives (walls, slabs, items, etc.)
- Scene State - Zustand store with IndexedDB persistence and undo/redo
- Systems - Geometry generation for walls, floors, ceilings, roofs
- Scene Registry - Fast lookup from node IDs to Three.js objects
- Spatial Grid - Collision detection and placement validation
- Event Bus - Typed event emitter for inter-component communication
- Asset Storage - IndexedDB-based file storage for user-uploaded assets
Usage
import { useScene, WallNode, ItemNode } from '@pascal-app/core'
// Create a wall
const wall = WallNode.parse({
points: [[0, 0], [5, 0]],
height: 3,
thickness: 0.2,
})
useScene.getState().createNode(wall, parentLevelId)
// Subscribe to scene changes
function MyComponent() {
const nodes = useScene((state) => state.nodes)
const walls = Object.values(nodes).filter(n => n.type === 'wall')
return <div>Total walls: {walls.length}</div>
}
Node Types
SiteNode- Root containerBuildingNode- Building within a siteLevelNode- Floor levelWallNode- Vertical wall with optional openingsSlabNode- Floor slabCeilingNode- Ceiling surfaceRoofNode- Roof geometryZoneNode- Spatial zone/roomItemNode- Furniture, fixtures, appliancesScanNode- 3D scan referenceGuideNode- 2D guide image reference
Systems
Systems process dirty nodes each frame to update geometry:
WallSystem- Wall geometry with mitering and CSG cutoutsSlabSystem- Floor polygon generationCeilingSystem- Ceiling geometryRoofSystem- Roof generationItemSystem- Item positioning on walls/ceilings/floors
License
MIT