added external class

include/omath/rev_eng/internal_rev_object.hpp

@@ -0,0 +1,33 @@
+//
+// Created by Vlad on 8/8/2025.
+//
+
+#pragma once
+#include <cstddef>
+#include <cstdint>
+
+namespace omath::rev_eng
+{
+    class InternalReverseEngineeredObject
+    {
+    protected:
+        template<class Type>
+        [[nodiscard]] Type& get_by_offset(const std::ptrdiff_t offset)
+        {
+            return *reinterpret_cast<Type*>(reinterpret_cast<std::uintptr_t>(this) + offset);
+        }
+
+        template<class Type>
+        [[nodiscard]] const Type& get_by_offset(const std::ptrdiff_t offset) const
+        {
+            return *reinterpret_cast<Type*>(reinterpret_cast<std::uintptr_t>(this) + offset);
+        }
+
+        template<std::size_t id, class ReturnType>
+        ReturnType call_virtual_method(auto&&... arg_list)
+        {
+            using VirtualMethodType = ReturnType(__thiscall*)(void*, decltype(arg_list)...);
+            return (*static_cast<VirtualMethodType**>(this))[id](this, arg_list...);
+        }
+    };
+} // namespace omath::rev_eng