Netcode Bootstrap

2026-05-31 14:27:52 -07:00
parent 99d8d2d2a9
commit 7fa77ce821
1813 changed files with 2921554 additions and 84 deletions
@@ -0,0 +1,55 @@
+using Unity.Collections;
+using Unity.Collections.LowLevel.Unsafe;
+using Unity.Entities;
+using Unity.Mathematics;
+using Hash128 = Unity.Entities.Hash128;
+using FixedStringName = Unity.Collections.FixedString512Bytes;
+
+////////////////////////////////////////////////////////////////////////////////////
+
+namespace Rukhanka.Toolbox
+{
+public static class BlobStringExtensions
+{
+	public unsafe static Hash128 CalculateHash128(ref this BlobString s)
+	{
+		var hasher = new xxHash3.StreamingState();
+		//	BlobString internally is just BlobArray, so do a little C++ magic here and reinterpret BlobString as BlobArray (with hope that first member of former will remain as its data)
+		ref var stringAsArr = ref UnsafeUtility.As<BlobString, BlobArray<byte>>(ref s);
+		//	Ignoring trailing zero byte
+		hasher.Update(stringAsArr.GetUnsafePtr(), stringAsArr.Length - 1);
+		var rv = new Hash128(hasher.DigestHash128());
+		return rv;
+	}
+
+////////////////////////////////////////////////////////////////////////////////////
+
+	public static FixedStringName ToFixedString(ref this BlobString s)
+	{
+		var rv = new FixedStringName();
+		if (s.Length > 0)
+			s.CopyTo(ref rv);
+		return rv;
+	}
+
+////////////////////////////////////////////////////////////////////////////////////
+
+	//	Truncate string if needed
+	public static unsafe ConversionError CopyToWithTruncate<T>(ref this BlobString bs, ref T dest) where T : INativeList<byte>
+	{
+		fixed (BlobString* blobStringPtr = &bs)
+		{
+			var ba = (BlobArray<byte>*)blobStringPtr;
+			byte* srcBuffer = (byte*)ba->GetUnsafePtr();
+			int srcLength = bs.Length;
+			dest.Length = math.min(srcLength, dest.Capacity);
+			byte* destBuffer = (byte*)UnsafeUtility.AddressOf(ref dest.ElementAt(0));
+			int destCapacity = dest.Capacity;
+			var err = Unicode.Utf8ToUtf8(srcBuffer, srcLength, destBuffer, out var destLength, destCapacity);
+			dest.Length = destLength;
+			return err;
+		}
+	}
+}
+}
+