floorplan/zone: name label inside polygon + polygon editor on select

`buildZoneFloorplan` now emits a centered name label at the polygon's area-weighted centroid (Shoelace formula, with bbox-center fallback for degenerate rings). Label uses the legacy `FloorplanZoneLabel` styling: `fontSize: 0.2`, white fill, zone-color stroke, `paintOrder: 'stroke'` for the "outlined text" look that stays legible above any fill. When the zone is selected the builder also emits the polygon editor — edge-handle per edge, midpoint-handle per midpoint, endpoint-handle per vertex — driven by the shared `createPolygonVertexAffordance` / `createPolygonAddVertexAffordance` / `createPolygonMoveEdgeAffordance` factories slabs and ceilings already use. Zones have no `holes` field so the factory's optional `holeIndex` stays undefined and the operations target `node.polygon` directly. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 15:12:02 -04:00
parent 3419cf8587
commit 0dee7747d2
8 changed files with 506 additions and 0 deletions
@@ -0,0 +1,66 @@
+import { type NodeDefinition, ZoneNode as ZoneNodeSchema } from '@pascal-app/core'
+import {
+  zoneAddVertexAffordance,
+  zoneMoveEdgeAffordance,
+  zoneMoveVertexAffordance,
+} from './floorplan-affordances'
+import { buildZoneFloorplan } from './floorplan'
+import { zoneParametrics } from './parametrics'
+import { ZoneNode } from './schema'
+
+/**
+ * Zone — Stage A. Custom-behavior escape hatch: zone uses TSL shader
+ * materials + `<Html>` portals + per-frame uniform poking, so it
+ * lives via `def.renderer` + `def.system` (no `def.geometry` possible
+ * because zone isn't really a mesh).
+ */
+export const zoneDefinition: NodeDefinition<typeof ZoneNode> = {
+  kind: 'zone',
+  schemaVersion: 1,
+  schema: ZoneNode,
+  category: 'site',
+
+  defaults: () => {
+    const stub = ZoneNodeSchema.parse({ id: 'zone_default' as never, type: 'zone' })
+    const { id: _id, type: _type, ...rest } = stub
+    return rest
+  },
+
+  capabilities: {
+    selectable: { hitVolume: 'bbox' },
+    duplicable: true,
+    deletable: true,
+  },
+
+  parametrics: zoneParametrics,
+
+  renderer: {
+    kind: 'parametric',
+    module: () => import('./renderer'),
+  },
+  system: {
+    module: () => import('./system'),
+    priority: 4,
+  },
+  floorplan: buildZoneFloorplan,
+  // Polygon editor when selected — same three operations slabs / ceilings
+  // expose. The shared factories key off `node.polygon`, optional
+  // `node.holes` (absent on zones). See `floorplan-affordances.ts`.
+  floorplanAffordances: {
+    'move-vertex': zoneMoveVertexAffordance,
+    'add-vertex': zoneAddVertexAffordance,
+    'move-edge': zoneMoveEdgeAffordance,
+  },
+
+  presentation: {
+    label: 'Zone',
+    description: 'A polygonal site zone (lawn, water, paving) with a TSL gradient material.',
+    icon: { kind: 'url', src: '/icons/zone.png' },
+    paletteSection: 'site',
+    paletteOrder: 20,
+  },
+
+  mcp: {
+    description: 'A polygon-bounded site zone with a typed surface (grass / water / paving / ...).',
+  },
+}