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Packages/com.rukhanka.animation/Rukhanka.Toolbox/FixedStringExtensions.cs

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+using Unity.Collections;
+using Hash128 = Unity.Entities.Hash128;
+using FixedStringName = Unity.Collections.FixedString512Bytes;
+using Unity.Core;
+
+////////////////////////////////////////////////////////////////////////////////////
+
+namespace Rukhanka.Toolbox
+{
+public static class FixedStringExtensions
+{
+	public static unsafe Hash128 CalculateHash128(in this FixedStringName s)
+	{
+		if (s.IsEmpty)
+			return default;
+
+		var hasher = new xxHash3.StreamingState();
+		hasher.Update(s.GetUnsafePtr(), s.Length);
+		var rv = new Hash128(hasher.DigestHash128());
+		return rv;
+	}
+
+////////////////////////////////////////////////////////////////////////////////////
+
+	public static Hash128 CalculateHash128(this string s)
+	{
+		if (s == null)
+			return default;
+		var fs = new FixedStringName(s);
+		return fs.CalculateHash128();
+	}
+
+////////////////////////////////////////////////////////////////////////////////////
+
+	public static unsafe uint CalculateHash32(in this FixedStringName s)
+	{
+		if (s.IsEmpty)
+			return default;
+
+		var rv = XXHash.Hash32(s.GetUnsafePtr(), s.Length);
+		return rv;
+	}
+	
+////////////////////////////////////////////////////////////////////////////////////
+
+	public static uint CalculateHash32(this string s)
+	{
+		if (s == null)
+			return 0;
+		var fs = new FixedStringName(s);
+		return fs.CalculateHash32();
+	}
+}
+}
+