Merge pull request #80 from orange-cpp/feature/rev_eng

Feature: Reverse Engineering classes

include/omath/3d_primitives/box.hpp

@@ -3,8 +3,8 @@
 //
 
 #pragma once
+#include "omath/linear_algebra/triangle.hpp"
 #include "omath/linear_algebra/vector3.hpp"
-#include "omath/triangle.hpp"
 #include <array>
 
 namespace omath::primitives

include/omath/3d_primitives/plane.hpp

@@ -3,8 +3,8 @@
 //
 
 #pragma once
+#include "omath/linear_algebra/triangle.hpp"
 #include "omath/linear_algebra/vector3.hpp"
-#include "omath/triangle.hpp"
 #include <array>
 
 namespace omath::primitives

include/omath/collision/line_tracer.hpp

@@ -3,8 +3,8 @@
 //
 #pragma once
 
+#include "omath/linear_algebra/triangle.hpp"
 #include "omath/linear_algebra/vector3.hpp"
-#include "omath/triangle.hpp"
 
 namespace omath::collision
 {

include/omath/engines/iw_engine/constants.hpp

@@ -5,8 +5,8 @@
 #pragma once
 #include "omath/linear_algebra/mat.hpp"
 #include "omath/linear_algebra/vector3.hpp"
-#include <omath/angle.hpp>
-#include <omath/view_angles.hpp>
+#include <omath/trigonometry/angle.hpp>
+#include <omath/trigonometry/view_angles.hpp>
 
 namespace omath::iw_engine
 {

include/omath/engines/opengl_engine/constants.hpp

@@ -5,8 +5,8 @@
 
 #include "omath/linear_algebra/mat.hpp"
 #include "omath/linear_algebra/vector3.hpp"
-#include <omath/angle.hpp>
-#include <omath/view_angles.hpp>
+#include <omath/trigonometry/angle.hpp>
+#include <omath/trigonometry/view_angles.hpp>
 
 namespace omath::opengl_engine
 {

include/omath/engines/source_engine/constants.hpp

@@ -5,8 +5,8 @@
 
 #include "omath/linear_algebra/mat.hpp"
 #include "omath/linear_algebra/vector3.hpp"
-#include <omath/angle.hpp>
-#include <omath/view_angles.hpp>
+#include <omath/trigonometry/angle.hpp>
+#include <omath/trigonometry/view_angles.hpp>
 
 namespace omath::source_engine
 {

include/omath/engines/unity_engine/constants.hpp

@@ -6,8 +6,8 @@
 
 #include "omath/linear_algebra/mat.hpp"
 #include "omath/linear_algebra/vector3.hpp"
-#include <omath/angle.hpp>
-#include <omath/view_angles.hpp>
+#include <omath/trigonometry/angle.hpp>
+#include <omath/trigonometry/view_angles.hpp>
 
 namespace omath::unity_engine
 {

include/omath/engines/unreal_engine/constants.hpp

@@ -6,8 +6,8 @@
 
 #include "omath/linear_algebra/mat.hpp"
 #include "omath/linear_algebra/vector3.hpp"
-#include <omath/angle.hpp>
-#include <omath/view_angles.hpp>
+#include <omath/trigonometry/angle.hpp>
+#include <omath/trigonometry/view_angles.hpp>
 
 namespace omath::unreal_engine
 {

include/omath/linear_algebra/triangle.hpp

@@ -2,7 +2,7 @@
 // Created by Orange on 11/13/2024.
 //
 #pragma once
-#include "linear_algebra/vector3.hpp"
+#include "vector3.hpp"
 
 namespace omath
 {

include/omath/linear_algebra/vector3.hpp

@@ -4,7 +4,7 @@
 
 #pragma once
 
-#include "omath/angle.hpp"
+#include "omath/trigonometry/angle.hpp"
 #include "omath/linear_algebra/vector2.hpp"
 #include <cstdint>
 #include <expected>

include/omath/omath.hpp

@@ -6,8 +6,8 @@
 #pragma once
 
 // Basic math utilities
-#include "omath/angles.hpp"
-#include "omath/angle.hpp"
+#include "omath/trigonometry/angles.hpp"
+#include "omath/trigonometry/angle.hpp"
 
 // Vector classes (in dependency order)
 #include "omath/linear_algebra/vector2.hpp"
@@ -18,11 +18,11 @@
 #include "omath/linear_algebra/mat.hpp"
 
 // Color functionality
-#include "omath/color.hpp"
+#include "omath/utility/color.hpp"
 
 // Geometric primitives
-#include "omath/triangle.hpp"
-#include "omath/view_angles.hpp"
+#include "omath/linear_algebra/triangle.hpp"
+#include "omath/trigonometry/view_angles.hpp"
 
 // 3D primitives
 #include "omath/3d_primitives/box.hpp"
@@ -82,3 +82,7 @@
 #include "omath/engines/unreal_engine/camera.hpp"
 #include "omath/engines/unreal_engine/traits/camera_trait.hpp"
 #include "omath/engines/unreal_engine/traits/pred_engine_trait.hpp"
+
+// Reverse Engineering
+#include "omath/rev_eng/external_rev_object.hpp"
+#include "omath/rev_eng/internal_rev_object.hpp"

include/omath/projection/camera.hpp

@@ -7,8 +7,8 @@
 #include "omath/linear_algebra/mat.hpp"
 #include "omath/linear_algebra/vector3.hpp"
 #include "omath/projection/error_codes.hpp"
+#include <omath/trigonometry/angle.hpp>
 #include <expected>
-#include <omath/angle.hpp>
 #include <type_traits>
 
 #ifdef OMATH_BUILD_TESTS

include/omath/rev_eng/external_rev_object.hpp

@@ -0,0 +1,35 @@
+//
+// Created by Vlad on 10/4/2025.
+//
+
+#pragma once
+#include <cstddef>
+#include <cstdint>
+
+namespace omath::rev_eng
+{
+    template<class ExternalMemoryManagementTrait>
+    class ExternalReverseEngineeredObject
+    {
+    public:
+        explicit ExternalReverseEngineeredObject(const std::uintptr_t addr): m_object_address(addr)
+        {
+        }
+    private:
+        std::uintptr_t m_object_address{};
+
+    protected:
+        template<class Type>
+        [[nodiscard]]
+        Type get_by_offset(const std::ptrdiff_t offset) const
+        {
+            return ExternalMemoryManagementTrait::read_memory(m_object_address+offset);
+        }
+
+        template<class Type>
+        void set_by_offset(const std::ptrdiff_t offset, const Type& value) const
+        {
+            return ExternalMemoryManagementTrait::write_memory(m_object_address+offset, value);
+        }
+    };
+} // namespace omath::rev_eng

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 (*reinterpret_cast<VirtualMethodType**>(this))[id](this, arg_list...);
+        }
+    };
+} // namespace omath::rev_eng

include/omath/trigonometry/angle.hpp

@@ -3,7 +3,7 @@
 //
 
 #pragma once
-#include "omath/angles.hpp"
+#include "omath/trigonometry/angles.hpp"
 #include <algorithm>
 #include <format>
 #include <utility>

include/omath/utility/color.hpp

@@ -4,7 +4,7 @@
 
 #pragma once
 
-#include "linear_algebra/vector4.hpp"
+#include "omath/linear_algebra/vector4.hpp"
 #include <cstdint>
 
 namespace omath

tests/general/unit_test_angle.cpp

@@ -2,10 +2,10 @@
 // Created by Orange on 11/30/2024.
 //
 
+#include <omath/trigonometry/angle.hpp>
 #include <cmath>
 #include <gtest/gtest.h>
 #include <numbers>
-#include <omath/angle.hpp>
 
 using namespace omath;
 

tests/general/unit_test_angles.cpp

@@ -1,8 +1,8 @@
 //
 // Created by Orange on 11/30/2024.
 //
+#include <omath/trigonometry/angles.hpp>
 #include <gtest/gtest.h>
-#include <omath/angles.hpp>
 
 TEST(unit_test_angles, radians_to_deg)
 {

tests/general/unit_test_color.cpp

@@ -1,9 +1,8 @@
 //
 // Created by Vlad on 01.09.2024.
 //
+#include <omath/utility/color.hpp>
 #include <gtest/gtest.h>
-#include <omath/color.hpp>
-
 
 using namespace omath;
 

tests/general/unit_test_line_trace.cpp

@@ -2,9 +2,9 @@
 // Revised unit‑test suite for LineTracer (segment‑based Möller–Trumbore)
 // Pure ASCII: avoids non‑standard characters that MSVC rejects.
 //
-#include "omath/linear_algebra/vector3.hpp"
+#include "omath/linear_algebra/triangle.hpp"
 #include "omath/collision/line_tracer.hpp"
-#include "omath/triangle.hpp"
+#include "omath/linear_algebra/vector3.hpp"
 #include "gtest/gtest.h"
 #include <cmath>
 

tests/general/unit_test_reverse_enineering.cpp

@@ -0,0 +1,50 @@
+//
+// Created by Vlad on 10/4/2025.
+//
+#include "omath/linear_algebra/vector3.hpp"
+#include <gtest/gtest.h>
+#include <omath/rev_eng/internal_rev_object.hpp>
+
+class Player final
+{
+public:
+    virtual int foo() {return 1;}
+    virtual int bar() {return 2;}
+    omath::Vector3<float> m_origin{1.f, 2.f, 3.f};
+    int m_health{123};
+};
+
+class RevPlayer : omath::rev_eng::InternalReverseEngineeredObject
+{
+public:
+    omath::Vector3<float> get_origin()
+    {
+        return get_by_offset<omath::Vector3<float>>(sizeof(std::uintptr_t));
+    }
+    int get_health()
+    {
+        return get_by_offset<int>(sizeof(std::uintptr_t)+sizeof(omath::Vector3<float>));
+    }
+
+    int rev_foo()
+    {
+        return call_virtual_method<0, int>();
+    }
+    int rev_bar()
+    {
+        return call_virtual_method<1, int>();
+    }
+};
+
+
+TEST(unit_test_reverse_enineering, read_test)
+{
+    Player player_original;
+    const auto player_reversed = reinterpret_cast<RevPlayer*>(&player_original);
+
+    EXPECT_EQ(player_original.m_origin, player_reversed->get_origin());
+    EXPECT_EQ(player_original.m_health, player_reversed->get_health());
+
+    EXPECT_EQ(player_original.bar(), player_reversed->rev_bar());
+    EXPECT_EQ(player_original.foo(), player_reversed->rev_foo());
+}

tests/general/unit_test_triangle.cpp

@@ -1,7 +1,7 @@
 //
 // Created by Orange on 1/6/2025.
 //
-#include "omath/triangle.hpp"
+#include "omath/linear_algebra/triangle.hpp"
 #include "omath/linear_algebra/vector3.hpp"
 #include <cmath> // For std::sqrt, std::isinf, std::isnan
 #include <gtest/gtest.h>

tests/general/unit_test_view_angles.cpp

@@ -1,4 +1,4 @@
 //
 // Created by Orange on 11/30/2024.
 //
-#include <omath/view_angles.hpp>
+#include <omath/trigonometry/view_angles.hpp>