private string?GetFilenameInternal(int index)
{
var prefix = string.Empty;
var entry = default(RDBEntry);
var selectedRdb = default(RDB);
foreach (var rdb in RDBs)
{
if (index >= rdb.Entries.Count)
{
index -= rdb.Entries.Count;
continue;
}
prefix = rdb.Name;
entry = rdb.GetEntry(index);
selectedRdb = rdb;
break;
}
if (selectedRdb == null)
{
return(null);
}
if (!selectedRdb.NameDatabase.ExtMap.TryGetValue(entry.TypeInfoKTID, out var ext) && (!ExtList.TryGetValue(entry.TypeInfoKTID, out ext) || string.IsNullOrEmpty(ext)))
{
ext = selectedRdb.NameDatabase.HashMap.TryGetValue(entry.TypeInfoKTID, out ext) ? ext.Split(':').Last() : entry.TypeInfoKTID.ToString("x8");
}
prefix += $@"\{ext}";
if ((!selectedRdb.NameDatabase.NameMap.TryGetValue(entry.FileKTID, out var path) || string.IsNullOrWhiteSpace(path)) && (!FileList.TryGetValue(entry.FileKTID, out path) || string.IsNullOrWhiteSpace(path)))
{
path = $"{entry.FileKTID:x8}.{ext}";
}