Move render systems out of core

2026-05-01 15:07:47 +05:30
parent eee7af9e25
commit 23eec44714
18 changed files with 126 additions and 109 deletions
@@ -0,0 +1,63 @@
+import { useFrame } from '@react-three/fiber'
+import {
+  type AnyNodeId,
+  getScaledDimensions,
+  type ItemNode,
+  resolveLevelId,
+  sceneRegistry,
+  spatialGridManager,
+  useScene,
+  type WallNode,
+} from '@pascal-app/core'
+import type * as THREE from 'three'
+
+// ============================================================================
+// ITEM SYSTEM
+// ============================================================================
+
+export const ItemSystem = () => {
+  const dirtyNodes = useScene((state) => state.dirtyNodes)
+  const clearDirty = useScene((state) => state.clearDirty)
+
+  useFrame(() => {
+    if (dirtyNodes.size === 0) return
+    const nodes = useScene.getState().nodes
+
+    dirtyNodes.forEach((id) => {
+      const node = nodes[id]
+      if (!node || node.type !== 'item') return
+
+      const item = node as ItemNode
+      const mesh = sceneRegistry.nodes.get(id) as THREE.Object3D
+      if (!mesh) return
+
+      if (item.asset.attachTo === 'wall-side') {
+        // Wall-attached item: offset Z by half the parent wall's thickness
+        const parentWall = item.parentId ? nodes[item.parentId as AnyNodeId] : undefined
+        if (parentWall && parentWall.type === 'wall') {
+          const wallThickness = (parentWall as WallNode).thickness ?? 0.1
+          const side = item.side === 'front' ? 1 : -1
+          mesh.position.z = (wallThickness / 2) * side
+        }
+      } else if (!item.asset.attachTo) {
+        // If parented to another item (surface placement), R3F handles positioning via the hierarchy
+        const parentNode = item.parentId ? nodes[item.parentId as AnyNodeId] : undefined
+        if (parentNode?.type !== 'item') {
+          // Floor item: elevate by slab height (using full footprint overlap)
+          const levelId = resolveLevelId(item, nodes)
+          const slabElevation = spatialGridManager.getSlabElevationForItem(
+            levelId,
+            item.position,
+            getScaledDimensions(item),
+            item.rotation,
+          )
+          mesh.position.y = slabElevation + item.position[1]
+        }
+      }
+
+      clearDirty(id as AnyNodeId)
+    })
+  }, 2)
+
+  return null
+}