Unity PlayerPref & EditorPref hash handling

gistfile1.txt

// Unity hashes PlayerPref names to make them case-sensitive
// (Windows Registry isn't case sensitive otherwise)

private static string ToKey(string prefName)
{
    return prefName + "_h" + Hash(prefName);
}

//  djb2-xor hash method
private static uint Hash(string str)
{
    uint hash = 5381;
    if (string.IsNullOrEmpty(str)) return hash;

    foreach (var c in str)
        hash = hash * 33 ^ c;
    return hash;
}