Easy way to fix LocalData related file loading error

[pine-apple-pie]

I discovered a much easier way of resolving this issue than the one posted in readme which I could not fully understand.
https://github.com/pixeltris/YgoMaster/blob/master/Docs/FileLoadError.md

Start up a command prompt in admin mode and type:
mklink /d "Path to MD folder\LocalData\0000000" "Path to MD folder\LocalData\random letters"
This sets up a symbolic link between your actual MD cache folder and the folder \00000000\ (which YgoMaster uses).

#401

[pixeltris]

There is code which handles the folder lookup:

YgoMaster/YgoMasterClient/Program.cs

Lines 858 to 911 in 91d3e5f

	static void SetupStorageDirectory(IntPtr thisPtr, IntPtr storage, IntPtr mountPath)
	{
	string path = new IL2String(mountPath).ToString();
	//Console.WriteLine("Mount: " + path);
	if (!string.IsNullOrEmpty(path))
	{
	// NOTE: Allowing "/../LocalSave/" to point to "00000000"
	string localDataPath = "/../LocalData/";
	int localDataPathIndex = path.IndexOf(localDataPath);
	if (localDataPathIndex >= 0)
	{
	string folderName = path.Substring(localDataPathIndex + localDataPath.Length);
	path = path.Substring(0, localDataPathIndex + localDataPath.Length);
	if (folderName == "00000000")
	{
	Dictionary<string, DateTime> possibleFolders = new Dictionary<string, DateTime>();
	Dictionary<string, DateTime> possibleFoldersExactMatch = new Dictionary<string, DateTime>();
	foreach (string dir in Directory.GetDirectories(path))
	{
	DirectoryInfo dirInfo = new DirectoryInfo(dir);
	if (dirInfo.Name != folderName)
	{
	// Exodia the Forbidden One (card image) - "Card/Images/Illust/tcg/4027"
	string findFile = Path.Combine(dirInfo.FullName, "0000", "f5", "f5e2cfa8");
	if (File.Exists(findFile))
	{
	possibleFoldersExactMatch[dirInfo.Name] = dirInfo.LastWriteTime;
	}
	else
	{
	possibleFolders[dirInfo.Name] = dirInfo.LastWriteTime;
	}
	}
	}
	if (possibleFoldersExactMatch.Count > 0)
	{
	folderName = possibleFoldersExactMatch.OrderByDescending(x => x.Value).First().Key;
	}
	else if (possibleFolders.Count > 0)
	{
	folderName = possibleFolders.OrderByDescending(x => x.Value).First().Key;
	}
	}
	path += folderName;
	LocalDataDir = path;
	}
	hookSetupStorageDirectory.Original(thisPtr, storage, new IL2String(path).ptr);
	}
	else
	{
	hookSetupStorageDirectory.Original(thisPtr, storage, mountPath);
	}
	}
	}

People usually either have outdated folders or multiple folders inside of LocalData which is where problems arise from.

There is also an issue with LocalSave where by the client seemingly expects some data which results in the error if not correct. That's the reason for the LocalSave copying instructions. I haven't looked deeply into the exact causes of this one and it could be the symlink fixes those but this should be something that should be fixed where the issue occurs in the code.