unloadSubscene 卸载子场景

unloadSubscene

类型: MethodDeclaration

所属类: SceneContext

定义位置: scene.ts

描述

卸载子场景

参数 sceneId: 场景ID

参数

参数名	类型	描述	默认值
sceneId	string	-	-

返回值

类型: void

源代码

位置: 第 1091 行

public unloadSubscene(sceneId: string): void {
    const scene = this.subscenes.find(
      scene => scene.id === sceneId
    )
    if (!scene) return
    this.subscenes.remove(scene)
    const presetIdMap: HashMap<true> = {}
    const register = (nodes: SceneObjectDataDirectory) => {
      for (const node of nodes) {
        if (node.class === 'folder') {
          register(node.children)
        } else {
          presetIdMap[node.presetId] = true
        }
      }
    }
    register(scene.objects)
    // 获取待删除对象
    // 避免写在回调函数中异步执行
    const deletedObjects: Array<any> = []
    for (const manager of [this.parallax, this.light]) {
      for (const group of manager.groups) {
        let i = group.length
        while (--i >= 0) {
          const instance = group[i]
          if (presetIdMap[instance.presetId]) {
            deletedObjects.push({instance, manager})
          }
        }
      }
    }
    for (const manager of [this.actor, this.animation, this.region, this.emitter]) {
      const list = manager.list
      let i = list.length
      while (--i >= 0) {
        const instance = list[i]
        if (presetIdMap[instance.presetId]) {
          deletedObjects.push({instance, manager})
        }
      }
    }
    Callback.push(() => {
      for (const {instance, manager} of deletedObjects) {
        instance.destroy()
        manager.remove(instance)
      }
    })
  }

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文档生成时间：2025/7/21 20:53:39