Brings slab, ceiling, and wall onto the unified slot contract the shelf established, so each declares its paintable slots with a declarative default and (slab/ceiling) is painted through the registry capabilities.paint dispatch. - Shared helper packages/nodes/src/shared/slot-paint.ts: a node.slots-based PaintCapability factory (commit/resolve/effective generic; preview injected). Distinct from surface-paint.ts, which writes the legacy inline node.material. - slab: schema slots; def.geometry resolves node.slots.surface -> legacy material -> declared default, tags the mesh userData.slotId; slabPaint + capabilities.slots. Retires DEFAULT_SLAB_MATERIAL in the slab path. - ceiling: schema slots; material builders extracted to ceiling/materials.ts (shared by renderer + paint preview, built BackSide so the hover preview is visible from below); renderer resolves the slot; ceilingPaint + slots. - wall: WALL_SLOT_DEFAULT in core; the viewer's getMaterialsForWall renders an unpainted face with its declared default instead of the themed wall role; capabilities.slots (interior/exterior). wallPaint's inline interior/exterior fields are unchanged (node.slots migration is a later step). - selection-manager + material-paint: drop slab/ceiling from the legacy single-surface arms (now registry-driven). Behavior change (intended, matches the shelf precedent + the phase-5 plan): colored-mode UNPAINTED slab/ceiling/wall surfaces now render their fixed slot default (#e5e5e5 / #f5f5dc / #ffffff) instead of the theme role colour. The textures-off (monochrome) role collapse is unchanged — the escape hatch. Co-Authored-By: Claude Opus 4.8 (1M context) <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