Resolve missing directories and save a file.

SaveScores.cs

class ScoreTable {
    // blah blah blah
}

static string ScoreFilePath = PathX.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "AndTheory", "Dodgewall", "scores.js");

void Save(ScoreTable scoreObject)
{
    var parts = ScoreFilePath.Split(Path.DirectorySeparatorChar);
    var rebuild = parts[0];
    for(int i = 1; i < parts.Length - 1; ++i)
    {
        rebuild = PathX.Combine(rebuild, parts[i]);
        if(!Directory.Exists(rebuild))
        {
            Directory.CreateDirectory(rebuild);
        }
    }
    File.WriteAllText(ScoreFilePath, JsonUtility.ToJson(scoreObject));
}

ScoreTable Load()
{
    if(File.Exists(ScoreFilePath))
    {
        return JsonUtility.FromJson<ScoreTable>(ScoreFilePath);
    }
    else
    {
        return null;
    }
}