BuildingNode

import { z } from 'zod'
import { BaseNode, nodeType, objectId } from '../base'
import { LevelNode } from './level'

const BuildingNode = BaseNode.extend({
  id: objectId('building'),
  type: nodeType('building'),
  children: z.array(LevelNode.shape.id).default([]),
  position: z.tuple([z.number(), z.number(), z.number()]).default([0, 0, 0]),
  rotation: z.tuple([z.number(), z.number(), z.number()]).default([0, 0, 0]),
})

type BuildingNode = z.infer<typeof BuildingNode>

import { BuildingNode } from '@pascal/core/schema/nodes/building'

const building: BuildingNode = {
  object: 'node',
  id: 'building_xyz789',
  type: 'building',
  name: 'East Wing',
  parentId: 'site_abc123',
  visible: true,
  position: [15, 0, -10],
  rotation: [0, Math.PI / 6, 0], // 30-degree rotation
  children: [
    'level_ground_floor',
    'level_first_floor',
    'level_second_floor',
  ],
  metadata: {
    buildingType: 'residential',
    floors: 3,
  },
}

import { BuildingNode } from '@pascal/core/schema/nodes/building'

// Parse with defaults
const building = BuildingNode.parse({
  name: 'Main Building',
})
// Result: Building at origin [0,0,0] with no rotation

const building = BuildingNode.parse({
  name: 'North Building',
  position: [20, 0, -15],
  rotation: [0, Math.PI / 2, 0], // 90-degree rotation
})

import { LevelNode } from '@pascal/core/schema/nodes/level'
import { generateId } from '@pascal/core/schema/base'

// Create level nodes
const groundFloor = LevelNode.parse({
  name: 'Ground Floor',
  level: 0,
})

const firstFloor = LevelNode.parse({
  name: 'First Floor',
  level: 1,
})

// Reference them in the building
const building = BuildingNode.parse({
  name: 'Two-Story Building',
  children: [groundFloor.id, firstFloor.id],
})

Site Coordinate System
  ↓
  └─ Building Position + Rotation
       ↓
       └─ Building Local Coordinate System
            ↓
            └─ Level Elements (walls, slabs, etc.)

SiteNode
└── BuildingNode
    ├── LevelNode (Ground Floor)
    │   ├── WallNode
    │   ├── SlabNode
    │   └── ZoneNode
    ├── LevelNode (First Floor)
    │   ├── WallNode
    │   └── SlabNode
    └── LevelNode (Second Floor)
        └── ...