同步 sgs-frontend-mobile 源码

tests/unit/RouteSurfaceProjection.spec.ts

@@ -0,0 +1,99 @@
+import { describe, expect, it } from 'vitest'
+import * as THREE from 'three'
+import {
+  getWalkableSurfaceHits,
+  projectRoutePositionToSurface,
+  resolveDominantRouteSurfaceY
+} from '@/components/map/routeSurfaceProjection'
+
+const createDeck = (
+  y: number,
+  width = 40,
+  depth = 40,
+  x = 0,
+  z = 0
+) => {
+  const deck = new THREE.Mesh(
+    new THREE.BoxGeometry(width, 0.2, depth),
+    new THREE.MeshBasicMaterial()
+  )
+  deck.position.set(x, y - 0.1, z)
+  return deck
+}
+
+const boundsOf = (object: THREE.Object3D) => {
+  object.updateWorldMatrix(true, true)
+  return new THREE.Box3().setFromObject(object)
+}
+
+describe('route surface projection', () => {
+  it('将5楼遗留的非零路线Y投射到真实楼面', () => {
+    const floor = new THREE.Group()
+    floor.add(createDeck(26.964))
+    const fixture = new THREE.Mesh(
+      new THREE.BoxGeometry(2, 2, 2),
+      new THREE.MeshBasicMaterial()
+    )
+    fixture.position.set(0, 28, 0)
+    floor.add(fixture)
+
+    const bounds = boundsOf(floor)
+    const hits = getWalkableSurfaceHits(floor, bounds, [0, 0.33, 0])
+    const projected = projectRoutePositionToSurface(
+      floor,
+      bounds,
+      [0, 0.33, 0],
+      26.964,
+      0.24
+    )
+
+    expect(hits[0]).toBeCloseTo(26.964, 3)
+    expect(projected?.y).toBeCloseTo(27.204, 3)
+  })
+
+  it('以多数路线点命中的楼面为当前楼层高度', () => {
+    const floor = new THREE.Group()
+    floor.add(createDeck(26.964, 20, 20))
+    floor.add(createDeck(29.5, 4, 4, 20, 0))
+    const bounds = boundsOf(floor)
+
+    const surfaceY = resolveDominantRouteSurfaceY(floor, bounds, [
+      [-5, 0.197, 0],
+      [0, 0.33, 0],
+      [5, 0.254, 0],
+      [20, 0.33, 0]
+    ])
+
+    expect(surfaceY).toBeCloseTo(26.964, 3)
+  })
+
+  it('不把当前楼层已隐藏的模型表面作为路线高度', () => {
+    const floor = new THREE.Group()
+    const hiddenDeck = createDeck(2)
+    hiddenDeck.visible = false
+    floor.add(hiddenDeck)
+    floor.add(createDeck(10))
+    const bounds = boundsOf(floor)
+
+    const surfaceY = resolveDominantRouteSurfaceY(floor, bounds, [[0, 0, 0]])
+
+    expect(surfaceY).toBeCloseTo(10, 3)
+  })
+
+  it('返回包含楼层布局位移的世界高度，避免重复叠加偏移', () => {
+    const floor = new THREE.Group()
+    floor.add(createDeck(5))
+    floor.position.y = 68
+    const bounds = boundsOf(floor)
+
+    const projected = projectRoutePositionToSurface(
+      floor,
+      bounds,
+      [0, 5.074, 0],
+      undefined,
+      0.24
+    )
+
+    expect(projected?.y).toBeCloseTo(73.24, 3)
+  })
+})