take only building layers to the thumbnail

2026-03-02 10:01:22 +09:00
parent 8e097537d0
commit 0f271985d8
9 changed files with 142 additions and 74 deletions
@@ -1,62 +1,14 @@
-import { type CeilingNode, type LevelNode, sceneRegistry, useScene, type WallNode } from '@pascal-app/core'
+import { type LevelNode, sceneRegistry, useScene } from '@pascal-app/core'
 import { useFrame } from '@react-three/fiber'
 import { lerp } from 'three/src/math/MathUtils.js'
 import useViewer from '../../store/use-viewer'
+import { getLevelHeight } from './level-utils'

-const DEFAULT_LEVEL_HEIGHT = 2.5
 const EXPLODED_GAP = 5

-// Cache: levelId → computed height. Invalidated by nodes reference change.
-// Zustand produces a new `nodes` object on every mutation, so reference equality
-// is a zero-cost way to detect stale data without any subscription overhead.
-const heightCache = new Map<string, number>()
-let lastNodesRef: object | null = null
-
-function getLevelHeight(
-  levelId: string,
-  nodes: ReturnType<typeof useScene.getState>['nodes'],
-): number {
-  if (heightCache.has(levelId)) return heightCache.get(levelId)!
-
-  const level = nodes[levelId as LevelNode['id']] as LevelNode | undefined
-  if (!level) return DEFAULT_LEVEL_HEIGHT
-
-  let maxTop = 0
-
-  for (const childId of level.children) {
-    const child = nodes[childId as keyof typeof nodes]
-    if (!child) continue
-    if (child.type === 'ceiling') {
-      // ceiling.height is the interior face Y in level-local space
-      const ch = (child as CeilingNode).height ?? DEFAULT_LEVEL_HEIGHT
-      if (ch > maxTop) maxTop = ch
-    } else if (child.type === 'wall') {
-      // Wall mesh is pushed up to slabElevation by WallSystem.
-      // mesh.position.y + wall.height gives the actual top Y in level-local space.
-      let meshY = sceneRegistry.nodes.get(childId as any)?.position.y ?? 0
-      if (meshY < 0) {
-        meshY = 0 // Guard against invalid negative Y which could cause incorrect height calculation (e.g. from sunken slabs)
-      }
-      const top = meshY + ((child as WallNode).height ?? DEFAULT_LEVEL_HEIGHT)
-      if (top > maxTop) maxTop = top
-    }
-  }
-
-  const height = maxTop > 0 ? maxTop : DEFAULT_LEVEL_HEIGHT
-  heightCache.set(levelId, height)
-  return height
-}
-
 export const LevelSystem = () => {
  useFrame((_, delta) => {
    const nodes = useScene.getState().nodes
-
-    // Clear cache when nodes reference changes (any node was mutated)
-    if (nodes !== lastNodesRef) {
-      heightCache.clear()
-      lastNodesRef = nodes
-    }
-
    const levelMode = useViewer.getState().levelMode
    const selectedLevel = useViewer.getState().selection.levelId

@@ -0,0 +1,97 @@
+import { type CeilingNode, type LevelNode, sceneRegistry, useScene, type WallNode } from '@pascal-app/core'
+
+export const DEFAULT_LEVEL_HEIGHT = 2.5
+
+// Cache: levelId → computed height. Invalidated when the nodes reference changes.
+// Zustand produces a new `nodes` object on every mutation, so reference equality
+// is a zero-cost way to detect stale data without any subscription overhead.
+const heightCache = new Map<string, number>()
+let lastNodesRef: object | null = null
+
+export function getLevelHeight(
+  levelId: string,
+  nodes: ReturnType<typeof useScene.getState>['nodes'],
+): number {
+  if (nodes !== lastNodesRef) {
+    heightCache.clear()
+    lastNodesRef = nodes
+  }
+
+  if (heightCache.has(levelId)) return heightCache.get(levelId)!
+
+  const level = nodes[levelId as LevelNode['id']] as LevelNode | undefined
+  if (!level) return DEFAULT_LEVEL_HEIGHT
+
+  let maxTop = 0
+
+  for (const childId of level.children) {
+    const child = nodes[childId as keyof typeof nodes]
+    if (!child) continue
+    if (child.type === 'ceiling') {
+      const ch = (child as CeilingNode).height ?? DEFAULT_LEVEL_HEIGHT
+      if (ch > maxTop) maxTop = ch
+    } else if (child.type === 'wall') {
+      let meshY = sceneRegistry.nodes.get(childId as any)?.position.y ?? 0
+      if (meshY < 0) meshY = 0
+      const top = meshY + ((child as WallNode).height ?? DEFAULT_LEVEL_HEIGHT)
+      if (top > maxTop) maxTop = top
+    }
+  }
+
+  const height = maxTop > 0 ? maxTop : DEFAULT_LEVEL_HEIGHT
+  heightCache.set(levelId, height)
+  return height
+}
+
+/**
+ * Instantly snaps all level Objects3D to their true stacked Y positions
+ * (ignores levelMode — always uses stacked, no exploded gap).
+ *
+ * Returns a restore function that reverts each level's Y to what it was
+ * before the snap, so lerp animations in LevelSystem can continue undisturbed.
+ *
+ * Usage:
+ *   const restore = snapLevelsToTruePositions()
+ *   renderer.render(scene, camera)
+ *   restore()
+ */
+export function snapLevelsToTruePositions(): () => void {
+  const nodes = useScene.getState().nodes
+
+  type LevelEntry = {
+    obj: NonNullable<ReturnType<typeof sceneRegistry.nodes.get>>
+    levelId: string
+    index: number
+  }
+
+  const entries: LevelEntry[] = []
+  sceneRegistry.byType.level.forEach((levelId) => {
+    const obj = sceneRegistry.nodes.get(levelId)
+    const level = nodes[levelId as LevelNode['id']]
+    if (obj && level) {
+      entries.push({ levelId, index: (level as any).level ?? 0, obj })
+    }
+  })
+  entries.sort((a, b) => a.index - b.index)
+
+  // Snapshot current Y and visibility so we can restore them after the render
+  const snapshot = new Map(entries.map(({ levelId, obj }) => [levelId, { y: obj.position.y, visible: obj.visible }]))
+
+  // Snap to true stacked positions and make all levels visible
+  let cumulativeY = 0
+  for (const { levelId, obj } of entries) {
+    obj.position.y = cumulativeY
+    obj.visible = true
+    cumulativeY += getLevelHeight(levelId, nodes)
+  }
+
+  return () => {
+    for (const { levelId, obj } of entries) {
+      const saved = snapshot.get(levelId)
+      if (saved !== undefined) {
+        obj.position.y = saved.y
+        obj.visible = saved.visible
+      }
+    }
+  }
+}