private static IEnumerable<HexReference> GetHexReferences(GameResourceManager gameResourceManager, XElement hexReferencesElement)
 {
     return hexReferencesElement.Elements()
         .Select(x => new HexReference
         {
             Id = int.Parse(x.Attribute("id").Value),
             Definition = gameResourceManager
                 .GetHexSheet(x.Attribute("sheetName").Value)
                 .Definitions[x.Attribute("name").Value]
         });
 }