0

我正在尝试将我的 pc XNA 游戏移植到 xbox,并尝试将 xna easystorage 与我现有的 pc 文件管理一起实施以获取高分。基本上试图结合http://xnaessentials.com/tutorials/highscores.aspx/tutorials/highscores.aspxhttp://easystorage.codeplex.com/

我遇到了一个关于 LoadHighScores() 的特定错误,因为“return (data);”错误 - 使用未分配的局部变量“数据”。

我想这是由于easystorage/xbox的异步设计!?但不确定如何解决 - 以下是代码示例:

原始 PC 代码:(适用于 PC)

public static HighScoreData LoadHighScores(string filename) { HighScoreData data; // 获取游戏保存路径

string fullpath = "Content/highscores.lst";
// Open the file
FileStream stream = File.Open(fullpath, FileMode.Open,FileAccess.Read);    
        try    
        {         // Read the data from the file
    XmlSerializer serializer = new XmlSerializer(typeof(HighScoreData));
    data = (HighScoreData)serializer.Deserialize(stream);    
        }    
        finally
         {        // Close the file        
            stream.Close();    
        }     
        return (data);
    }

XBOX 端口:(有错误)

public static HighScoreData LoadHighScores(string container, string filename) { HighScoreData data;

        if (Global.SaveDevice.FileExists(container, filename))
                {
                    Global.SaveDevice.Load(container, filename, stream =>
                            {
                                File.Open(Global.fileName_options, FileMode.Open,//FileMode.OpenOrCreate,
                                         FileAccess.Read);  
                                try    
                            {         
                                            // Read the data from the file
                                        XmlSerializer serializer = new XmlSerializer(typeof(HighScoreData));
                                        data = (HighScoreData)serializer.Deserialize(stream);    
                            }    
                              finally
                             {      
                                    // Close the file  

                                stream.Close();

                             }   

                            });

                }


        return (data);
    }

有任何想法吗?

4

1 回答 1

2

返回前分配数据。;)

  data = (if_struct) ? new your_struct() : null;
  if (Global.SaveDevice.FileExists(container, filename))
  {
     ......
  }
  return (data);
}
于 2011-10-19T13:44:49.127 回答