private void SaveAsClickHander()
        {
            Close();
            string path = BarrageProject.GetProjectPath();

            if (path == null)
            {
                return;
            }
            string savePath = FileUtils.SaveFile("选择保存数据", "关卡数据(*.nd)\0*.nd\0");

            if (savePath != null)
            {
                BaseNode root = BarrageProject.RootNode;
                NodeData nd   = NodeManager.SaveAsNodeData(root, true);
                FileUtils.SerializableObjectToFile(savePath, nd);
                BarrageProject.SetProjectPath(savePath);
                BarrageProject.Log("Save Complete");
            }
        }
        private void NewClickHandler()
        {
            Close();
            string savePath = FileUtils.SaveFile("选择新建工程的位置", "关卡数据(*.nd)\0*.nd\0");

            if (savePath != null)
            {
                EventManager.GetInstance().PostEvent(EditorEvents.BeforeProjectChanged);
                BarrageProject.UnloadProject();
                // todo 载入固定位置的一个模板
                string templatePath = Application.streamingAssetsPath + "/template.nd";
                BarrageProject.LoadProject(templatePath);
                BarrageProject.SetProjectPath(savePath);
                // 保存文件
                BaseNode root = BarrageProject.RootNode;
                NodeData nd   = NodeManager.SaveAsNodeData(root, true);
                FileUtils.SerializableObjectToFile(savePath, nd);
                EventManager.GetInstance().PostEvent(EditorEvents.AfterProjectChanged);
                // 当前文件
                BarrageProject.Log("Current project file: " + FileUtils.GetFileNameByPath(savePath));
            }
        }