Method setPersistent

packages/core/src/ECS/Systems/EntityCache.ts:67–69

* 设置持久缓存 * * @param entities 要缓存的实体列表

(entities: readonly Entity[])

     * @param entities 要缓存的实体列表
     */
    public setPersistent(entities: readonly Entity[]): void {
        this._persistentCache = entities;
    }

    /**
     * 获取被跟踪的实体集合