item scale

packages/core/src/schema/index.ts

@@ -3,7 +3,7 @@ export { BaseNode, generateId, Material, nodeType, objectId } from './base'
 // Camera
 export { CameraSchema } from './camera'
 export type { AssetInput } from './nodes/item'
-export { ItemNode } from './nodes/item'
+export { getScaledDimensions, ItemNode } from './nodes/item'
 export { LevelNode } from './nodes/level'
 // Nodes
 export { SiteNode } from './nodes/site'

packages/core/src/schema/nodes/item.ts

@@ -30,6 +30,7 @@ export const ItemNode = BaseNode.extend({
   type: nodeType('item'),
   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]),
+  scale: z.tuple([z.number(), z.number(), z.number()]).default([1, 1, 1]),
   side: z.enum(['front', 'back']).optional(),
   children: z.array(objectId('item')).default([]),
 
@@ -53,3 +54,13 @@ export const ItemNode = BaseNode.extend({
 `)
 
 export type ItemNode = z.infer<typeof ItemNode>
+
+/**
+ * Returns the effective world-space dimensions of an item after applying its scale.
+ * Use this everywhere item.asset.dimensions is used for spatial calculations.
+ */
+export function getScaledDimensions(item: ItemNode): [number, number, number] {
+  const [w, h, d] = item.asset.dimensions
+  const [sx, sy, sz] = item.scale
+  return [w * sx, h * sy, d * sz]
+}