common extensions and some utilities

Runtime/Engine/Code/Foundation/SerializableGuid.cs

@@ -0,0 +1,53 @@
+using System;
+using UnityEngine;
+
+namespace RebootKit.Engine.Foundation {
+    [Serializable]
+    public struct SerializableGuid : IEquatable<SerializableGuid> {
+        public static SerializableGuid Zero = new(0, 0, 0, 0);
+
+        [SerializeField, HideInInspector]
+        public uint A;
+
+        [SerializeField, HideInInspector]
+        public uint B;
+
+        [SerializeField, HideInInspector]
+        public uint C;
+
+        [SerializeField, HideInInspector]
+        public uint D;
+
+        public SerializableGuid(uint a, uint b, uint c, uint d) {
+            A = a;
+            B = b;
+            C = c;
+            D = d;
+        }
+
+        public SerializableGuid(Guid guid) {
+            byte[] bytes = guid.ToByteArray();
+            A = BitConverter.ToUInt32(bytes, 0);
+            B = BitConverter.ToUInt32(bytes, 4);
+            C = BitConverter.ToUInt32(bytes, 8);
+            D = BitConverter.ToUInt32(bytes, 12);
+        }
+
+        public bool Equals(SerializableGuid other) {
+            return A == other.A && B == other.B && C == other.C && D == other.D;
+        }
+
+        public override bool Equals(object obj) {
+            return obj is SerializableGuid other && Equals(other);
+        }
+
+        public override int GetHashCode() {
+            return HashCode.Combine(A, B, C, D);
+        }
+
+        public static SerializableGuid New() => new(Guid.NewGuid());
+
+        public static bool operator ==(SerializableGuid lhs, SerializableGuid rhs) => lhs.Equals(rhs);
+        public static bool operator !=(SerializableGuid lhs, SerializableGuid rhs) => !lhs.Equals(rhs);
+    }
+}