From 8b1fbb4c1d0c040e10f4c781197913d6af91995c Mon Sep 17 00:00:00 2001
From: wass08 <wass08@gmail.com>
Date: Tue, 27 Jan 2026 07:05:37 +0900
Subject: [PATCH] slab type

---
 packages/core/src/events/bus.ts         |  3 ++-
 packages/core/src/schema/index.ts       |  4 ++--
 packages/core/src/schema/nodes/level.ts |  4 ++--
 packages/core/src/schema/nodes/slab.ts  | 24 ++++++++++++++++++++++++
 packages/core/src/schema/types.ts       |  2 ++
 5 files changed, 32 insertions(+), 5 deletions(-)
 create mode 100644 packages/core/src/schema/nodes/slab.ts

diff --git a/packages/core/src/events/bus.ts b/packages/core/src/events/bus.ts
index 3a221bec..698de8bc 100644
--- a/packages/core/src/events/bus.ts
+++ b/packages/core/src/events/bus.ts
@@ -1,6 +1,6 @@
 import type { ThreeEvent } from '@react-three/fiber'
 import mitt from 'mitt'
-import type { BuildingNode, ItemNode, WallNode, ZoneNode } from '../schema'
+import type { BuildingNode, ItemNode, SlabNode, WallNode, ZoneNode } from '../schema'
 import type { AnyNode } from '../schema/types'
 
 // Base event interfaces
@@ -22,6 +22,7 @@ export type WallEvent = NodeEvent<WallNode>
 export type ItemEvent = NodeEvent<ItemNode>
 export type BuildingEvent = NodeEvent<BuildingNode>
 export type ZoneEvent = NodeEvent<ZoneNode>
+export type SlabEvent = NodeEvent<SlabNode>
 
 // Event suffixes - exported for use in hooks
 export const eventSuffixes = [
diff --git a/packages/core/src/schema/index.ts b/packages/core/src/schema/index.ts
index 659f1381..a08a404e 100644
--- a/packages/core/src/schema/index.ts
+++ b/packages/core/src/schema/index.ts
@@ -8,10 +8,10 @@ export { ItemNode } from './nodes/item'
 export { LevelNode } from './nodes/level'
 // Nodes
 export { SiteNode } from './nodes/site'
+export { SlabNode, SlabPolygon } from './nodes/slab'
 export { WallNode } from './nodes/wall'
-// Zones
-export { ZoneNode } from './nodes/zone'
 export type { ZonePolygon } from './nodes/zone'
+export { ZoneNode } from './nodes/zone'
 export type { AnyNodeId, AnyNodeType } from './types'
 // Union types
 export { AnyNode } from './types'
diff --git a/packages/core/src/schema/nodes/level.ts b/packages/core/src/schema/nodes/level.ts
index 77685b7e..3cfdc0c7 100644
--- a/packages/core/src/schema/nodes/level.ts
+++ b/packages/core/src/schema/nodes/level.ts
@@ -1,14 +1,14 @@
 import dedent from 'dedent'
 import { z } from 'zod'
 import { BaseNode, nodeType, objectId } from '../base'
+import { SlabNode } from './slab'
 import { WallNode } from './wall'
 import { ZoneNode } from './zone'
 
-
 export const LevelNode = BaseNode.extend({
   id: objectId('level'),
   type: nodeType('level'),
-  children: z.array(z.union([WallNode.shape.id, ZoneNode.shape.id])).default([]),
+  children: z.array(z.union([WallNode.shape.id, ZoneNode.shape.id, SlabNode.shape.id])).default([]),
   // Specific props
   level: z.number().default(0),
 }).describe(
diff --git a/packages/core/src/schema/nodes/slab.ts b/packages/core/src/schema/nodes/slab.ts
new file mode 100644
index 00000000..0a0f90a2
--- /dev/null
+++ b/packages/core/src/schema/nodes/slab.ts
@@ -0,0 +1,24 @@
+import dedent from 'dedent'
+import { z } from 'zod'
+import { BaseNode, nodeType, objectId } from '../base'
+
+// Polygon boundary for zone area - array of [x, z] coordinates
+export const SlabPolygon = z.array(z.tuple([z.number(), z.number()]))
+
+export const SlabNode = BaseNode.extend({
+  id: objectId('slab'),
+  type: nodeType('slab'),
+  // Specific props
+  // Polygon boundary - array of [x, z] coordinates defining the slab
+  polygon: SlabPolygon,
+  elevation: z.number().default(0.05), // Elevation in meters
+}).describe(
+  dedent`
+  Slab node - used to represent a slab/floor in the building
+  - polygon: array of [x, z] points defining the slab boundary
+  - elevation: elevation in meters
+  `,
+)
+
+export type SlabNode = z.infer<typeof SlabNode>
+export type SlabPolygon = z.infer<typeof SlabPolygon>
diff --git a/packages/core/src/schema/types.ts b/packages/core/src/schema/types.ts
index cca1b644..9b3da384 100644
--- a/packages/core/src/schema/types.ts
+++ b/packages/core/src/schema/types.ts
@@ -3,6 +3,7 @@ import { BuildingNode } from './nodes/building'
 import { ItemNode } from './nodes/item'
 import { LevelNode } from './nodes/level'
 import { SiteNode } from './nodes/site'
+import { SlabNode } from './nodes/slab'
 import { WallNode } from './nodes/wall'
 import { ZoneNode } from './nodes/zone'
 
@@ -13,6 +14,7 @@ export const AnyNode = z.discriminatedUnion('type', [
   WallNode,
   ItemNode,
   ZoneNode,
+  SlabNode,
 ])
 
 export type AnyNode = z.infer<typeof AnyNode>