Method onPause

packages/plugin-sound/lib/SoundSystem.ts:110–115

* 游戏暂停的时候调用。 * * Called while the game paused.

()

   * Called while the game paused.
   */
  onPause() {
    if (!this.autoPauseAndStart) {
      return;
    }
    this.pauseAll();
  }

  /**
   * System 被销毁的时候调用。