namespace ET
{
    public static class SceneChangeHelper
    {
        // 场景切换协程
        public static async ETTask SceneChangeTo(Scene zoneScene, string sceneName, long sceneInstanceId)
        {
            // 可以订阅这个事件中创建Loading界面
            Game.EventSystem.Publish(new EventType.SceneChangeStart() {ZoneScene = zoneScene});
            
            CurrentScenesComponent currentScenesComponent = zoneScene.GetComponent<CurrentScenesComponent>();
            currentScenesComponent.Scene?.Dispose(); // 删除之前的CurrentScene，创建新的
            Scene currentScene = SceneFactory.CreateCurrentScene(sceneInstanceId, zoneScene.Zone, sceneName, currentScenesComponent);
            UnitComponent unitComponent = currentScene.AddComponent<UnitComponent>();

            // 等待CreateMyUnit的消息
            WaitType.Wait_CreateMyUnit waitCreateMyUnit = await zoneScene.GetComponent<ObjectWait>().Wait<WaitType.Wait_CreateMyUnit>();
            M2C_CreateMyUnit m2CCreateMyUnit = waitCreateMyUnit.Message;
            Unit unit = UnitFactory.Create(currentScene, m2CCreateMyUnit.Unit);
            unitComponent.Add(unit);
            
            zoneScene.AddComponent<AIComponent, int>(1);

            Game.EventSystem.Publish(new EventType.SceneChangeFinish() {ZoneScene = zoneScene});
        }
    }
}