From 99782ea11be8f5a70d6ee06e0e5ee109c1537d48 Mon Sep 17 00:00:00 2001
From: Atdunbg <979541498@qq.com>
Date: Wed, 18 Jun 2025 20:57:50 +0800
Subject: [PATCH] =?UTF-8?q?=E7=AE=80=E5=8D=95=E6=B7=BB=E5=8A=A0UUID?=
 =?UTF-8?q?=E7=94=9F=E6=88=90=E5=8A=9F=E8=83=BD?=
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---
 Hazel/src/Hazel/Core/UUID.cpp | 25 ++++++++++++++++++++++
 Hazel/src/Hazel/Core/UUID.h   | 40 +++++++++++++++++++++++++++++++++++
 2 files changed, 65 insertions(+)
 create mode 100644 Hazel/src/Hazel/Core/UUID.cpp
 create mode 100644 Hazel/src/Hazel/Core/UUID.h

diff --git a/Hazel/src/Hazel/Core/UUID.cpp b/Hazel/src/Hazel/Core/UUID.cpp
new file mode 100644
index 0000000..638b436
--- /dev/null
+++ b/Hazel/src/Hazel/Core/UUID.cpp
@@ -0,0 +1,25 @@
+//
+// Created by sfd on 25-6-18.
+//
+
+#include "UUID.h"
+
+#include <random>
+
+namespace Hazel
+{
+    static std::random_device s_RandomDevice;
+    static std::mt19937_64 s_Engine(s_RandomDevice());
+    static std::uniform_int_distribution<uint64_t> s_UniformDistribution;
+
+    UUID::UUID()
+        : m_UUID(s_UniformDistribution(s_Engine))
+    {
+
+    }
+
+    UUID::UUID(const uint64_t uuid)
+        : m_UUID(uuid)
+    {
+    }
+}
diff --git a/Hazel/src/Hazel/Core/UUID.h b/Hazel/src/Hazel/Core/UUID.h
new file mode 100644
index 0000000..eee0196
--- /dev/null
+++ b/Hazel/src/Hazel/Core/UUID.h
@@ -0,0 +1,40 @@
+//
+// Created by sfd on 25-6-18.
+//
+
+#ifndef UUID_H
+#define UUID_H
+#include <xhash>
+#include "Core.h"
+
+namespace Hazel
+{
+    class HAZEL_API UUID
+    {
+    public:
+        UUID();
+        UUID(uint64_t uuid);
+        UUID(const UUID&) = default;
+
+        operator uint64_t() const { return m_UUID;}
+    private:
+        uint64_t m_UUID;
+    };
+}
+
+namespace std
+{
+
+    template<>
+    struct hash<Hazel::UUID>
+    {
+        std::size_t operator() (const Hazel::UUID& uuid) const
+        {
+            return hash<uint64_t>()((uint64_t)uuid);
+        }
+    };
+
+}
+
+
+#endif //UUID_H