/// <summary>
/// Get the "generic" CLIP name, removing age and species.
/// </summary><param name="text">
/// The CLIP name from which to get the generic value.
/// </param><returns>The generic CLIP name.</returns>
public static string GetGenericValue(string text)
{
int index = text.IndexOf('_', 0, text.Length);
if (index > 0 && index <= 5)
{
string x2y = FNVHash.SubstringToLower(text, 0, index);
int index2 = x2y.IndexOf('2', 0, index);
if (index2 > 0 && index2 <= 2)
{
string x = x2y.Substring(0, index2);
string y = x2y.Substring(index2 + 1);
if (y.Length > 0 && !(isAO(x) && isAO(y)))
{
return(string.Concat(
(x[0] == 'o' ? "o" : "a"), "2",
(y[0] == 'o' ? "o" : "a"), "_",
text.Substring(index + 1)));
}
}
else if (!isAO(x2y))
{
return(string.Concat("a_", text.Substring(index + 1)));
}
}
return(text);
}
/// <summary>
/// Get the 64-bit FNV hash for use as the IID
/// for a CLIP, but ignoring age and species.
/// </summary><param name="text">
/// The CLIP name to get the generic hash for.
/// </param><returns>The generic hash value.</returns>
public static ulong GetGenericHash(string text)
{
string value = GetGenericValue(text);
ulong hash = FNVHash.HashString64(text);
hash &= 0x7FFFFFFFFFFFFFFF;
return(hash);
}
/// <summary>
/// Get the 64-bit FNV hash for use as the IID
/// for a CLIP of a given name.
/// </summary><param name="text">
/// The CLIP name to get the hash for.
/// </param><returns>The hash value.</returns>
public static ulong HashString(string text)
{
string value = text;
ulong mask = 0;
int index = text.IndexOf('_', 0, text.Length);
if (index > 0 && index <= 5)
{
string x2y = FNVHash.SubstringToLower(text, 0, index);
int index2 = x2y.IndexOf('2', 0, index);
if (index2 > 0 && index2 <= 2)
{
string x = x2y.Substring(0, index2);
string y = x2y.Substring(index2 + 1);
if (y.Length > 0 && !(isAO(x) && isAO(y)))
{
byte xAge = Mask(x);
byte yAge = Mask(y);
value = string.Concat(
(x[0] == 'o' ? "o" : "a"), "2",
(y[0] == 'o' ? "o" : "a"), "_",
text.Substring(index + 1));
mask = (ulong)(0x8000 | xAge << 8 | yAge);
}
}
else if (!isAO(x2y))
{
byte xAge = Mask(x2y);
value = string.Concat("a_", text.Substring(index + 1));
mask = (ulong)(0x8000 | xAge << 8);
}
}
ulong hash = FNVHash.HashString64(value);
hash &= 0x7FFFFFFFFFFFFFFF;
hash ^= mask << 48;
return(hash);
}
