Merge pull request #91 from orange-cpp/feature/frostbite_engine

Defines constants for Frostbite engine

CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.26)
 
-project(omath VERSION 3.8.2 LANGUAGES CXX)
+project(omath VERSION 3.9.2 LANGUAGES CXX)
 
 include(CMakePackageConfigHelpers)
 include(CheckCXXCompilerFlag)
@@ -28,22 +28,23 @@ if (OMATH_USE_AVX2 AND NOT COMPILER_SUPPORTS_AVX2)
     set(OMATH_USE_AVX2 OFF CACHE BOOL "Omath will use AVX2 to boost performance" FORCE)
 endif ()
 
-message(STATUS "[${PROJECT_NAME}]: Building on ${CMAKE_HOST_SYSTEM_NAME}, compiler ${CMAKE_CXX_COMPILER_ID}")
+if (${PROJECT_IS_TOP_LEVEL})
-message(STATUS "[${PROJECT_NAME}]: Warnings as errors ${OMATH_THREAT_WARNING_AS_ERROR}")
+    message(STATUS "[${PROJECT_NAME}]: Building on ${CMAKE_HOST_SYSTEM_NAME}, compiler ${CMAKE_CXX_COMPILER_ID}")
-message(STATUS "[${PROJECT_NAME}]: Build unit tests ${OMATH_BUILD_TESTS}")
+    message(STATUS "[${PROJECT_NAME}]: Warnings as errors ${OMATH_THREAT_WARNING_AS_ERROR}")
-message(STATUS "[${PROJECT_NAME}]: Build benchmark ${OMATH_BUILD_BENCHMARK}")
+    message(STATUS "[${PROJECT_NAME}]: Build unit tests ${OMATH_BUILD_TESTS}")
-message(STATUS "[${PROJECT_NAME}]: As dynamic library ${OMATH_BUILD_AS_SHARED_LIBRARY}")
+    message(STATUS "[${PROJECT_NAME}]: Build benchmark ${OMATH_BUILD_BENCHMARK}")
-message(STATUS "[${PROJECT_NAME}]: Static C++ runtime ${OMATH_STATIC_MSVC_RUNTIME_LIBRARY}")
+    message(STATUS "[${PROJECT_NAME}]: As dynamic library ${OMATH_BUILD_AS_SHARED_LIBRARY}")
-message(STATUS "[${PROJECT_NAME}]: CMake unity build ${OMATH_USE_UNITY_BUILD}")
+    message(STATUS "[${PROJECT_NAME}]: Static C++ runtime ${OMATH_STATIC_MSVC_RUNTIME_LIBRARY}")
-message(STATUS "[${PROJECT_NAME}]: Example projects ${OMATH_BUILD_EXAMPLES}")
+    message(STATUS "[${PROJECT_NAME}]: CMake unity build ${OMATH_USE_UNITY_BUILD}")
-message(STATUS "[${PROJECT_NAME}]: AVX2 feature status ${OMATH_USE_AVX2}")
+    message(STATUS "[${PROJECT_NAME}]: Example projects ${OMATH_BUILD_EXAMPLES}")
-message(STATUS "[${PROJECT_NAME}]: ImGUI integration feature status ${OMATH_IMGUI_INTEGRATION}")
+    message(STATUS "[${PROJECT_NAME}]: AVX2 feature status ${OMATH_USE_AVX2}")
-message(STATUS "[${PROJECT_NAME}]: Legacy features support ${OMATH_ENABLE_LEGACY}")
+    message(STATUS "[${PROJECT_NAME}]: ImGUI integration feature status ${OMATH_IMGUI_INTEGRATION}")
+    message(STATUS "[${PROJECT_NAME}]: Legacy features support ${OMATH_ENABLE_LEGACY}")
+endif ()
 
 file(GLOB_RECURSE OMATH_SOURCES CONFIGURE_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/source/*.cpp")
 file(GLOB_RECURSE OMATH_HEADERS CONFIGURE_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/include/*.hpp")
 
-
 if (OMATH_BUILD_AS_SHARED_LIBRARY)
     add_library(${PROJECT_NAME} SHARED ${OMATH_SOURCES} ${OMATH_HEADERS})
 else ()
@@ -111,8 +112,8 @@ if (OMATH_USE_AVX2)
         target_compile_options(${PROJECT_NAME} PUBLIC -msimd128 -mavx2)
     elseif (CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang|AppleClang")
         target_compile_options(${PROJECT_NAME} PUBLIC -mfma -mavx2)
-    endif()
+    endif ()
-endif()
+endif ()
 
 target_compile_features(${PROJECT_NAME} PUBLIC cxx_std_23)
 

README.md

@@ -54,6 +54,7 @@ It provides the latest features, is highly customizable, has all for cheat devel
 - **Ready for meta-programming**: Omath use templates for common types like Vectors, Matrixes etc, to handle all types!
 - **Engine support**: Supports coordinate systems of Source, Unity, Unreal, IWEngine and canonical OpenGL.
 - **Cross platform**: Supports Windows, MacOS and Linux.
+- **Algorithms**: Has ability to scan for byte pattern with wildcards in PE files/modules, binary slices, works even with Wine apps. 
 <div align = center>
  
 # Gallery
@@ -74,6 +75,10 @@ It provides the latest features, is highly customizable, has all for cheat devel
 
 ![CS2 Preview]
 
+<br>
+
+![TF2 Preview]
+
 <br>
 <br>
 
@@ -86,7 +91,7 @@ It provides the latest features, is highly customizable, has all for cheat devel
 [APEX Preview]: .github/images/showcase/apex.png
 [BO2 Preview]: .github/images/showcase/cod_bo2.png
 [CS2 Preview]: .github/images/showcase/cs2.jpeg
-
+[TF2 Preview]: .github/images/showcase/tf2.jpg
 <!----------------------------------{ Buttons }--------------------------------->
 [INSTALL]: INSTALL.md
 [DOCUMENTATION]: http://libomath.org

VERSION

@@ -1 +1 @@
-3.8.2
+3.9.2

include/omath/engines/frostbite_engine/camera.hpp

@@ -0,0 +1,13 @@
+//
+// Created by Vlad on 3/22/2025.
+//
+
+#pragma once
+#include "omath/engines/frostbite_engine/constants.hpp"
+#include "omath/projection/camera.hpp"
+#include "traits/camera_trait.hpp"
+
+namespace omath::frostbite_engine
+{
+    using Camera =  projection::Camera<Mat4X4, ViewAngles, CameraTrait>;
+} // namespace omath::unity_engine

include/omath/engines/frostbite_engine/constants.hpp

@@ -0,0 +1,25 @@
+//
+// Created by Vlad on 10/21/2025.
+//
+
+#pragma once
+#include "omath/linear_algebra/mat.hpp"
+#include "omath/linear_algebra/vector3.hpp"
+#include <omath/trigonometry/angle.hpp>
+#include <omath/trigonometry/view_angles.hpp>
+
+namespace omath::frostbite_engine
+{
+    constexpr Vector3<float> k_abs_up = {0, 1, 0};
+    constexpr Vector3<float> k_abs_right = {1, 0, 0};
+    constexpr Vector3<float> k_abs_forward = {0, 0, 1};
+
+    using Mat4X4 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
+    using Mat3X3 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
+    using Mat1X3 = Mat<1, 3, float, MatStoreType::ROW_MAJOR>;
+    using PitchAngle = Angle<float, -90.f, 90.f, AngleFlags::Clamped>;
+    using YawAngle = Angle<float, -180.f, 180.f, AngleFlags::Normalized>;
+    using RollAngle = Angle<float, -180.f, 180.f, AngleFlags::Normalized>;
+
+    using ViewAngles = omath::ViewAngles<PitchAngle, YawAngle, RollAngle>;
+} // namespace omath::frostbite_engine

include/omath/engines/frostbite_engine/formulas.hpp

@@ -0,0 +1,26 @@
+//
+// Created by Vlad on 3/22/2025.
+//
+
+#pragma once
+#include "omath/engines/frostbite_engine/constants.hpp"
+
+namespace omath::frostbite_engine
+{
+    [[nodiscard]]
+    Vector3<float> forward_vector(const ViewAngles& angles) noexcept;
+
+    [[nodiscard]]
+    Vector3<float> right_vector(const ViewAngles& angles) noexcept;
+
+    [[nodiscard]]
+    Vector3<float> up_vector(const ViewAngles& angles) noexcept;
+
+    [[nodiscard]] Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;
+
+    [[nodiscard]]
+    Mat4X4 rotation_matrix(const ViewAngles& angles) noexcept;
+
+    [[nodiscard]]
+    Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept;
+} // namespace omath::unity_engine

include/omath/engines/frostbite_engine/traits/camera_trait.hpp

@@ -0,0 +1,24 @@
+//
+// Created by Vlad on 8/10/2025.
+//
+
+#pragma once
+#include "omath/engines/frostbite_engine/formulas.hpp"
+#include "omath/projection/camera.hpp"
+
+namespace omath::frostbite_engine
+{
+    class CameraTrait final
+    {
+    public:
+        [[nodiscard]]
+        static ViewAngles calc_look_at_angle(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
+
+        [[nodiscard]]
+        static Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;
+        [[nodiscard]]
+        static Mat4X4 calc_projection_matrix(const projection::FieldOfView& fov, const projection::ViewPort& view_port,
+                                             float near, float far) noexcept;
+    };
+
+} // namespace omath::unreal_engine

include/omath/engines/frostbite_engine/traits/pred_engine_trait.hpp

@@ -0,0 +1,76 @@
+//
+// Created by Vlad on 8/6/2025.
+//
+#pragma once
+#include "omath/engines/frostbite_engine/formulas.hpp"
+#include "omath/projectile_prediction/projectile.hpp"
+#include "omath/projectile_prediction/target.hpp"
+#include <optional>
+
+namespace omath::frostbite_engine
+{
+    class PredEngineTrait final
+    {
+    public:
+        constexpr static Vector3<float> predict_projectile_position(const projectile_prediction::Projectile& projectile,
+                                                                    const float pitch, const float yaw,
+                                                                    const float time, const float gravity) noexcept
+        {
+            auto current_pos = projectile.m_origin
+                               + forward_vector({PitchAngle::from_degrees(-pitch), YawAngle::from_degrees(yaw),
+                                                 RollAngle::from_degrees(0)})
+                                         * projectile.m_launch_speed * time;
+            current_pos.y -= (gravity * projectile.m_gravity_scale) * (time * time) * 0.5f;
+
+            return current_pos;
+        }
+        [[nodiscard]]
+        static constexpr Vector3<float> predict_target_position(const projectile_prediction::Target& target,
+                                                                const float time, const float gravity) noexcept
+        {
+            auto predicted = target.m_origin + target.m_velocity * time;
+
+            if (target.m_is_airborne)
+                predicted.y -= gravity * (time * time) * 0.5f;
+
+            return predicted;
+        }
+        [[nodiscard]]
+        static float calc_vector_2d_distance(const Vector3<float>& delta) noexcept
+        {
+            return std::sqrt(delta.x * delta.x + delta.z * delta.z);
+        }
+
+        [[nodiscard]]
+        constexpr static float get_vector_height_coordinate(const Vector3<float>& vec) noexcept
+        {
+            return vec.y;
+        }
+
+        [[nodiscard]]
+        static Vector3<float> calc_viewpoint_from_angles(const projectile_prediction::Projectile& projectile,
+                                                         Vector3<float> predicted_target_position,
+                                                         const std::optional<float> projectile_pitch) noexcept
+        {
+            const auto delta2d = calc_vector_2d_distance(predicted_target_position - projectile.m_origin);
+            const auto height = delta2d * std::tan(angles::degrees_to_radians(projectile_pitch.value()));
+
+            return {predicted_target_position.x, predicted_target_position.y + height, projectile.m_origin.z};
+        }
+        // Due to specification of maybe_calculate_projectile_launch_pitch_angle, pitch angle must be:
+        // 89 look up, -89 look down
+        [[nodiscard]]
+        static float calc_direct_pitch_angle(const Vector3<float>& origin, const Vector3<float>& view_to) noexcept
+        {
+            const auto direction = (view_to - origin).normalized();
+            return angles::radians_to_degrees(std::asin(direction.y));
+        }
+        [[nodiscard]]
+        static float calc_direct_yaw_angle(const Vector3<float>& origin, const Vector3<float>& view_to) noexcept
+        {
+            const auto direction = (view_to - origin).normalized();
+
+            return angles::radians_to_degrees(std::atan2(direction.x, direction.z));
+        };
+    };
+} // namespace omath::unity_engine

include/omath/linear_algebra/mat.hpp

@@ -666,8 +666,7 @@ namespace omath
     }
     template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
     [[nodiscard]]
-    Mat<4, 4, Type, St> mat_ortho_left_handed(const Type left, const Type right,
+    Mat<4, 4, Type, St> mat_ortho_left_handed(const Type left, const Type right, const Type bottom, const Type top,
-                                              const Type bottom, const Type top,
                                               const Type near, const Type far) noexcept
     {
         return
@@ -680,9 +679,8 @@ namespace omath
     }
     template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
     [[nodiscard]]
-    Mat<4, 4, Type, St> mat_ortho_right_handed(const Type left, const Type right,
+    Mat<4, 4, Type, St> mat_ortho_right_handed(const Type left, const Type right, const Type bottom, const Type top,
-                                              const Type bottom, const Type top,
+                                               const Type near, const Type far) noexcept
-                                              const Type near, const Type far) noexcept
     {
         return
         {

include/omath/linear_algebra/vector2.hpp

@@ -234,6 +234,21 @@ namespace omath
     };
 } // namespace omath
 
+template<> struct std::hash<omath::Vector2<float>>
+{
+    [[nodiscard]]
+    std::size_t operator()(const omath::Vector2<float>& vec) const noexcept
+    {
+        std::size_t hash = 0;
+        constexpr std::hash<float> hasher;
+
+        hash ^= hasher(vec.x) + 0x9e3779b9 + (hash << 6) + (hash >> 2);
+        hash ^= hasher(vec.y) + 0x9e3779b9 + (hash << 6) + (hash >> 2);
+
+        return hash;
+    }
+};
+
 template<class Type>
 struct std::formatter<omath::Vector2<Type>> // NOLINT(*-dcl58-cpp)
 {

include/omath/linear_algebra/vector3.hpp

@@ -245,15 +245,6 @@ namespace omath
             return std::make_tuple(this->x, this->y, z);
         }
 
-        [[nodiscard]] Vector3 view_angle_to(const Vector3& other) const noexcept
-        {
-            const auto distance = distance_to(other);
-            const auto delta = other - *this;
-
-            return {angles::radians_to_degrees(std::asin(delta.z / distance)),
-                    angles::radians_to_degrees(std::atan2(delta.y, delta.x)), 0};
-        }
-
         [[nodiscard]]
         bool operator<(const Vector3& other) const noexcept
         {
@@ -282,6 +273,7 @@ namespace omath
 
 template<> struct std::hash<omath::Vector3<float>>
 {
+    [[nodiscard]]
     std::size_t operator()(const omath::Vector3<float>& vec) const noexcept
     {
         std::size_t hash = 0;

include/omath/linear_algebra/vector4.hpp

@@ -202,6 +202,22 @@ namespace omath
 };
 } // namespace omath
 
+template<> struct std::hash<omath::Vector4<float>>
+{
+    [[nodiscard]]
+    std::size_t operator()(const omath::Vector4<float>& vec) const noexcept
+    {
+        std::size_t hash = 0;
+        constexpr std::hash<float> hasher;
+
+        hash ^= hasher(vec.x) + 0x9e3779b9 + (hash << 6) + (hash >> 2);
+        hash ^= hasher(vec.y) + 0x9e3779b9 + (hash << 6) + (hash >> 2);
+        hash ^= hasher(vec.z) + 0x9e3779b9 + (hash << 6) + (hash >> 2);
+        hash ^= hasher(vec.w) + 0x9e3779b9 + (hash << 6) + (hash >> 2);
+        return hash;
+    }
+};
+
 template<class Type>
 struct std::formatter<omath::Vector4<Type>> // NOLINT(*-dcl58-cpp)
 {

include/omath/omath.hpp

@@ -89,3 +89,4 @@
 
 // Utility
 #include "omath/utility/pattern_scan.hpp"
+#include "omath/utility/pe_pattern_scan.hpp"

include/omath/projection/camera.hpp

@@ -54,6 +54,12 @@ namespace omath::projection
         friend UnitTestProjection_Projection_Test;
 #endif
     public:
+        enum class ScreenStart
+        {
+            TOP_LEFT_CORNER,
+            BOTTOM_LEFT_CORNER,
+        };
+
         ~Camera() = default;
         Camera(const Vector3<float>& position, const ViewAnglesType& view_angles, const ViewPort& view_port,
                const FieldOfView& fov, const float near, const float far) noexcept
@@ -146,15 +152,22 @@ namespace omath::projection
             return m_origin;
         }
 
+
+        template<ScreenStart screen_start = ScreenStart::TOP_LEFT_CORNER>
         [[nodiscard]] std::expected<Vector3<float>, Error>
         world_to_screen(const Vector3<float>& world_position) const noexcept
         {
-            auto normalized_cords = world_to_view_port(world_position);
+            const auto normalized_cords = world_to_view_port(world_position);
 
             if (!normalized_cords.has_value())
                 return std::unexpected{normalized_cords.error()};
 
-            return ndc_to_screen_position(*normalized_cords);
+            if constexpr (screen_start == ScreenStart::TOP_LEFT_CORNER)
+                return ndc_to_screen_position_from_top_left_corner(*normalized_cords);
+            else if constexpr (screen_start == ScreenStart::BOTTOM_LEFT_CORNER)
+                return ndc_to_screen_position_from_bottom_left_corner(*normalized_cords);
+            else
+                std::unreachable();
         }
 
         [[nodiscard]] std::expected<Vector3<float>, Error>
@@ -225,7 +238,8 @@ namespace omath::projection
             return std::ranges::any_of(ndc.raw_array(), [](const auto& val) { return val < -1 || val > 1; });
         }
 
-        [[nodiscard]] Vector3<float> ndc_to_screen_position(const Vector3<float>& ndc) const noexcept
+        [[nodiscard]] Vector3<float>
+        ndc_to_screen_position_from_top_left_corner(const Vector3<float>& ndc) const noexcept
         {
             /*
                                 ^
@@ -239,7 +253,27 @@ namespace omath::projection
                            -1   |
                                 v
             */
-            return {(ndc.x + 1.f) / 2.f * m_view_port.m_width, (1.f - ndc.y) / 2.f * m_view_port.m_height, ndc.z};
+
+            return {(ndc.x + 1.f) / 2.f * m_view_port.m_width, (ndc.y / -2.f + 0.5f) * m_view_port.m_height, ndc.z};
+        }
+
+        [[nodiscard]] Vector3<float>
+        ndc_to_screen_position_from_bottom_left_corner(const Vector3<float>& ndc) const noexcept
+        {
+            /*
+                                ^
+                                |        y
+                            1   |
+                                |
+                                |
+                    -1 ---------0--------- 1  --> x
+                                |
+                                |
+                           -1   |
+                                v
+            */
+
+            return {(ndc.x + 1.f) / 2.f * m_view_port.m_width, (ndc.y / 2.f + 0.5f) * m_view_port.m_height, ndc.z};
         }
 
         [[nodiscard]] Vector3<float> screen_to_ndc(const Vector3<float>& screen_pos) const noexcept

include/omath/rev_eng/internal_rev_object.hpp

@@ -29,7 +29,7 @@ namespace omath::rev_eng
 #ifdef _MSC_VER
             using VirtualMethodType = ReturnType(__thiscall*)(void*, decltype(arg_list)...);
 #else
-            using VirtualMethodType = ReturnType(__fastcall*)(void*, decltype(arg_list)...);
+            using VirtualMethodType = ReturnType(*)(void*, decltype(arg_list)...);
 #endif
             return (*reinterpret_cast<VirtualMethodType**>(this))[id](this, arg_list...);
         }

include/omath/system/pe/data_directory.hpp

@@ -1,5 +0,0 @@
-//
-// Created by Vlad on 10/8/2025.
-//
-
-#pragma once

include/omath/system/pe/dos_header.hpp

@@ -1,32 +0,0 @@
-//
-// Created by Vlad on 10/7/2025.
-//
-
-#pragma once
-#include <cstdint>
-
-namespace omath::system::pe
-{
-    struct DosHeader final
-    {
-        std::uint16_t e_magic;
-        std::uint16_t e_cblp;
-        std::uint16_t e_cp;
-        std::uint16_t e_crlc;
-        std::uint16_t e_cparhdr;
-        std::uint16_t e_minalloc;
-        std::uint16_t e_maxalloc;
-        std::uint16_t e_ss;
-        std::uint16_t e_sp;
-        std::uint16_t e_csum;
-        std::uint16_t e_ip;
-        std::uint16_t e_cs;
-        std::uint16_t e_lfarlc;
-        std::uint16_t e_ovno;
-        std::uint16_t e_res[4];
-        std::uint16_t e_oemid;
-        std::uint16_t e_oeminfo;
-        std::uint16_t e_res2[10];
-        std::uint32_t e_lfanew;
-    };
-}

include/omath/system/pe/file_header.hpp

@@ -1,56 +0,0 @@
-//
-// Created by Vlad on 10/7/2025.
-//
-
-#pragma once
-#include <cstdint>
-
-namespace omath::system::pe
-{
-    enum class MachineId : std::uint16_t
-    {
-        UNKNOWN = 0x0000,
-        TARGET_HOST = 0x0001, // Useful for indicating we want to interact with the host and not a WoW guest.
-        I386 = 0x014C, // Intel 386.
-        R3000 = 0x0162, // MIPS little-endian, 0x160 big-endian
-        R4000 = 0x0166, // MIPS little-endian
-        R10000 = 0x0168, // MIPS little-endian
-        WCEMIPSV2 = 0x0169, // MIPS little-endian WCE v2
-        ALPHA = 0x0184, // Alpha_AXP
-        SH3 = 0x01A2, // SH3 little-endian
-        SH3DSP = 0x01A3,
-        SH3E = 0x01A4, // SH3E little-endian
-        SH4 = 0x01A6, // SH4 little-endian
-        SH5 = 0x01A8, // SH5
-        ARM = 0x01C0, // ARM Little-Endian
-        THUMB = 0x01C2, // ARM Thumb/Thumb-2 Little-Endian
-        ARMNT = 0x01C4, // ARM Thumb-2 Little-Endian
-        AM33 = 0x01D3,
-        POWERPC = 0x01F0, // IBM PowerPC Little-Endian
-        POWERPCP = 0x01F1,
-        IA64 = 0x0200, // Intel 64
-        MIPS16 = 0x0266, // MIPS
-        ALPHA64 = 0x0284, // ALPHA64
-        MIPSFPU = 0x0366, // MIPS
-        MIPSFPU16 = 0x0466, // MIPS
-        AXP64 = 0x0284,
-        TRICORE = 0x0520, // Infineon
-        CEF = 0x0CEF,
-        EBC = 0x0EBC, // EFI Byte Code
-        AMD64 = 0x8664, // AMD64 (K8)
-        M32R = 0x9041, // M32R little-endian
-        ARM64 = 0xAA64, // ARM64 Little-Endian
-        CEE = 0xC0EE,
-    };
-
-    struct FileHeader final
-    {
-        MachineId machine;
-        uint16_t num_sections;
-        uint32_t timedate_stamp;
-        uint32_t ptr_symbols;
-        uint32_t num_symbols;
-        uint16_t size_optional_header;
-        std::uint16_t characteristics;
-    };
-}

include/omath/system/pe/image_nt_headers.hpp

@@ -1,23 +0,0 @@
-//
-// Created by Vlad on 10/9/2025.
-//
-
-#pragma once
-#include "file_header.hpp"
-#include "optional_header.hpp"
-
-namespace omath::system::pe
-{
-    enum class NtArchitecture
-    {
-        x32_bit,
-        x64_bit,
-    };
-    template<NtArchitecture architecture>
-    struct ImageNtHeaders final
-    {
-        std::uint32_t signature;
-        FileHeader file_header;
-        OptionalHeader<architecture == NtArchitecture::x64_bit> optional_header;
-    };
-} // namespace omath::system::pe

include/omath/system/pe/optional_header.hpp

@@ -1,118 +0,0 @@
-//
-// Created by Vlad on 10/8/2025.
-//
-#pragma once
-#include <cstdint>
-
-namespace omath::system::pe
-{
-    static constexpr std::uint16_t opt_hdr32_magic = 0x010B;
-    static constexpr std::uint16_t opt_hdr64_magic = 0x020B;
-    enum class SubsystemId : std::uint16_t
-    {
-        unknown = 0x0000,
-        native = 0x0001,
-        windows_gui = 0x0002,
-        windows_cui = 0x0003,
-        os2_cui = 0x0005,
-        posix_cui = 0x0007,
-        native_windows = 0x0008,
-        windows_ce_gui = 0x0009,
-        efi_application = 0x000A,
-        efi_boot_service_driver = 0x000B,
-        efi_runtime_driver = 0x000C,
-        efi_rom = 0x000D,
-        xbox = 0x000E,
-        windows_boot_application = 0x0010,
-        xbox_code_catalog = 0x0011,
-    };
-
-    struct DataDirectory final
-    {
-        std::uint32_t rva;
-        std::uint32_t size;
-    };
-    struct OptionalHeaderX64 final
-    {
-        // Standard fields.
-        std::uint16_t magic;
-        std::uint16_t linker_version;
-
-        std::uint32_t size_code;
-        std::uint32_t size_init_data;
-        std::uint32_t size_uninit_data;
-
-        std::uint32_t entry_point;
-        std::uint32_t base_of_code;
-
-        // NT additional fields.
-        std::uint64_t image_base;
-        std::uint32_t section_alignment;
-        std::uint32_t file_alignment;
-
-        std::uint32_t os_version;
-        std::uint32_t img_version;
-        std::uint32_t subsystem_version;
-        std::uint32_t win32_version_value;
-
-        std::uint32_t size_image;
-        std::uint32_t size_headers;
-
-        std::uint32_t checksum;
-        SubsystemId subsystem;
-        std::uint16_t characteristics;
-
-        std::uint64_t size_stack_reserve;
-        std::uint64_t size_stack_commit;
-        std::uint64_t size_heap_reserve;
-        std::uint64_t size_heap_commit;
-
-        std::uint32_t ldr_flags;
-
-        std::uint32_t num_data_directories;
-        DataDirectory data_directories[16];
-    };
-    struct OptionalHeaderX86 final
-    {
-        // Standard fields.
-        uint16_t magic;
-        uint16_t linker_version;
-
-        uint32_t size_code;
-        uint32_t size_init_data;
-        uint32_t size_uninit_data;
-
-        uint32_t entry_point;
-        uint32_t base_of_code;
-        uint32_t base_of_data;
-
-        // NT additional fields.
-        uint32_t image_base;
-        uint32_t section_alignment;
-        uint32_t file_alignment;
-
-        std::uint32_t os_version;
-        std::uint32_t img_version;
-        std::uint32_t subsystem_version;
-        uint32_t win32_version_value;
-
-        uint32_t size_image;
-        uint32_t size_headers;
-
-        uint32_t checksum;
-        SubsystemId subsystem;
-        std::uint16_t characteristics;
-
-        uint32_t size_stack_reserve;
-        uint32_t size_stack_commit;
-        uint32_t size_heap_reserve;
-        uint32_t size_heap_commit;
-
-        uint32_t ldr_flags;
-
-        uint32_t num_data_directories;
-        DataDirectory data_directories[16];
-    };
-    template<bool x64 = true>
-    using OptionalHeader = std::conditional_t<x64, OptionalHeaderX64, OptionalHeaderX86>;
-} // namespace omath::system::pe

include/omath/system/pe/section_header.hpp

@@ -1,32 +0,0 @@
-//
-// Created by Vlad on 10/8/2025.
-//
-
-#pragma once
-#include <cstdint>
-
-// Section header
-//
-namespace omath::system::pe
-{
-    struct SectionHeader final
-    {
-        char name[8];
-        union
-        {
-            std::uint32_t physical_address;
-            std::uint32_t virtual_size;
-        };
-        std::uint32_t virtual_address;
-
-        std::uint32_t size_raw_data;
-        std::uint32_t ptr_raw_data;
-
-        std::uint32_t ptr_relocs;
-        std::uint32_t ptr_line_numbers;
-        std::uint32_t  num_relocs;
-        std::uint32_t  num_line_numbers;
-
-        std::uint32_t characteristics;
-    };
-}

include/omath/utility/pattern_scan.hpp

@@ -9,17 +9,13 @@
 #include <string_view>
 #include <vector>
 
-// ReSharper disable once CppInconsistentNaming
+// ReSharper disable CppInconsistentNaming
 class unit_test_pattern_scan_read_test_Test;
-// ReSharper disable once CppInconsistentNaming
 class unit_test_pattern_scan_corner_case_1_Test;
-// ReSharper disable once CppInconsistentNaming
 class unit_test_pattern_scan_corner_case_2_Test;
-// ReSharper disable once CppInconsistentNaming
 class unit_test_pattern_scan_corner_case_3_Test;
-// ReSharper disable once CppInconsistentNaming
 class unit_test_pattern_scan_corner_case_4_Test;
-
+// ReSharper restore CppInconsistentNaming
 namespace omath
 {
     enum class PatternScanError
@@ -37,11 +33,11 @@ namespace omath
     public:
         [[nodiscard]]
         static std::span<std::byte>::iterator scan_for_pattern(const std::span<std::byte>& range,
-                                                                     const std::string_view& pattern);
+                                                               const std::string_view& pattern);
 
         [[nodiscard]]
         static std::span<std::byte>::iterator scan_for_pattern(std::span<std::byte>&& range,
-                                                                     const std::string_view& pattern) = delete;
+                                                               const std::string_view& pattern) = delete;
 
         template<class IteratorType>
         requires std::input_or_output_iterator<std::remove_cvref_t<IteratorType>>

include/omath/utility/pe_pattern_scan.hpp

@@ -7,7 +7,6 @@
 #include <filesystem>
 #include <optional>
 #include <string_view>
-#include <vector>
 namespace omath
 {
     struct PeSectionScanResult
@@ -18,26 +17,14 @@ namespace omath
     };
     class PePatternScanner final
     {
-    private:
-        struct Section
-        {
-            std::uint64_t virtual_base_addr;
-            std::uint64_t raw_base_addr;
-            std::vector<std::byte> data;
-        };
-
     public:
         [[nodiscard]]
-        static std::optional<std::uintptr_t> scan_for_pattern_in_loaded_module(const std::string_view& module_name,
+        static std::optional<std::uintptr_t> scan_for_pattern_in_loaded_module(const void* module_base_address,
                                                                                const std::string_view& pattern);
 
         [[nodiscard]]
         static std::optional<PeSectionScanResult>
         scan_for_pattern_in_file(const std::filesystem::path& path_to_file, const std::string_view& pattern,
                                  const std::string_view& target_section_name = ".text");
-
-        [[nodiscard]]
-        static std::optional<Section> extract_section_from_pe_file(const std::filesystem::path& path_to_file,
-                                                                   const std::string_view& section_name);
     };
 } // namespace omath

source/engines/frostbite_engine/formulas.cpp

@@ -0,0 +1,42 @@
+//
+// Created by Vlad on 3/22/2025.
+//
+#include "omath/engines/frostbite_engine/formulas.hpp"
+
+namespace omath::frostbite_engine
+{
+    Vector3<float> forward_vector(const ViewAngles& angles) noexcept
+    {
+        const auto vec = rotation_matrix(angles) * mat_column_from_vector(k_abs_forward);
+
+        return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
+    }
+    Vector3<float> right_vector(const ViewAngles& angles) noexcept
+    {
+        const auto vec = rotation_matrix(angles) * mat_column_from_vector(k_abs_right);
+
+        return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
+    }
+    Vector3<float> up_vector(const ViewAngles& angles) noexcept
+    {
+        const auto vec = rotation_matrix(angles) * mat_column_from_vector(k_abs_up);
+
+        return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
+    }
+    Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept
+    {
+        return mat_camera_view<float, MatStoreType::ROW_MAJOR>(forward_vector(angles), right_vector(angles),
+                                                               up_vector(angles), cam_origin);
+    }
+    Mat4X4 rotation_matrix(const ViewAngles& angles) noexcept
+    {
+        return mat_rotation_axis_z<float, MatStoreType::ROW_MAJOR>(angles.roll)
+               * mat_rotation_axis_y<float, MatStoreType::ROW_MAJOR>(angles.yaw)
+               * mat_rotation_axis_x<float, MatStoreType::ROW_MAJOR>(angles.pitch);
+    }
+    Mat4X4 calc_perspective_projection_matrix(const float field_of_view, const float aspect_ratio, const float near,
+                                              const float far) noexcept
+    {
+        return mat_perspective_left_handed(field_of_view, aspect_ratio, near, far);
+    }
+} // namespace omath::unity_engine

source/engines/frostbite_engine/traits/camera_trait.cpp

@@ -0,0 +1,26 @@
+//
+// Created by Vlad on 8/11/2025.
+//
+#include "omath/engines/frostbite_engine/traits/camera_trait.hpp"
+
+namespace omath::frostbite_engine
+{
+
+    ViewAngles CameraTrait::calc_look_at_angle(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept
+    {
+        const auto direction = (look_at - cam_origin).normalized();
+
+        return {PitchAngle::from_radians(-std::asin(direction.y)),
+                YawAngle::from_radians(std::atan2(direction.x, direction.z)), RollAngle::from_radians(0.f)};
+    }
+    Mat4X4 CameraTrait::calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept
+    {
+        return frostbite_engine::calc_view_matrix(angles, cam_origin);
+    }
+    Mat4X4 CameraTrait::calc_projection_matrix(const projection::FieldOfView& fov,
+                                               const projection::ViewPort& view_port, const float near,
+                                               const float far) noexcept
+    {
+        return calc_perspective_projection_matrix(fov.as_degrees(), view_port.aspect_ratio(), near, far);
+    }
+} // namespace omath::unity_engine

source/engines/unity_engine/formulas.cpp

@@ -25,7 +25,7 @@ namespace omath::unity_engine
     }
     Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept
     {
-        return mat_camera_view<float, MatStoreType::ROW_MAJOR>(forward_vector(angles), -right_vector(angles),
+        return mat_camera_view<float, MatStoreType::ROW_MAJOR>(-forward_vector(angles), right_vector(angles),
                                                                up_vector(angles), cam_origin);
     }
     Mat4X4 rotation_matrix(const ViewAngles& angles) noexcept
@@ -37,13 +37,6 @@ namespace omath::unity_engine
     Mat4X4 calc_perspective_projection_matrix(const float field_of_view, const float aspect_ratio, const float near,
                                               const float far) noexcept
     {
-        const float fov_half_tan = std::tan(angles::degrees_to_radians(field_of_view) / 2.f);
+        return omath::mat_perspective_right_handed(field_of_view, aspect_ratio, near, far);
-
-        return {
-                {1.f / (aspect_ratio * fov_half_tan), 0, 0, 0},
-                {0, 1.f / (fov_half_tan), 0, 0},
-                {0, 0, (far + near) / (far - near), -(2.f * far * near) / (far - near)},
-                {0, 0, -1.f, 0},
-        };
     }
 } // namespace omath::unity_engine

source/utility/pe_pattern_scan.cpp

@@ -2,40 +2,227 @@
 // Created by Vlad on 10/7/2025.
 //
 #include "omath/utility/pe_pattern_scan.hpp"
-#include "omath/system/pe/image_nt_headers.hpp"
-#include "omath/system/pe/section_header.hpp"
 #include "omath/utility/pattern_scan.hpp"
 #include <fstream>
-#include <omath/system/pe/dos_header.hpp>
 #include <span>
 #include <stdexcept>
 #include <variant>
-#ifdef _WIN32
-#include <Windows.h>
-#endif
 
-using namespace omath::system::pe;
+// Internal PE shit defines
-using NtHeaderVariant = std::variant<ImageNtHeaders<NtArchitecture::x64_bit>, ImageNtHeaders<NtArchitecture::x32_bit>>;
+// Big thx for linuxpe sources as ref
+// Link: https://github.com/can1357/linux-pe
+namespace
+{
+    constexpr std::uint16_t opt_hdr32_magic = 0x010B;
+    constexpr std::uint16_t opt_hdr64_magic = 0x020B;
 
+    // Standard fields.
+    // ReSharper disable CppDeclaratorNeverUsed
+    struct DataDirectory final
+    {
+        std::uint32_t rva;
+        std::uint32_t size;
+    };
+    struct OptionalHeaderX64 final
+    {
+        std::uint16_t magic;
+
+        std::uint16_t linker_version;
+
+        std::uint32_t size_code;
+        std::uint32_t size_init_data;
+        std::uint32_t size_uninit_data;
+
+        std::uint32_t entry_point;
+        std::uint32_t base_of_code;
+
+        // NT additional fields.
+        std::uint64_t image_base;
+        std::uint32_t section_alignment;
+        std::uint32_t file_alignment;
+
+        std::uint32_t os_version;
+        std::uint32_t img_version;
+        std::uint32_t subsystem_version;
+        std::uint32_t win32_version_value;
+
+        std::uint32_t size_image;
+        std::uint32_t size_headers;
+
+        std::uint32_t checksum;
+        std::uint16_t subsystem;
+        std::uint16_t characteristics;
+
+        std::uint64_t size_stack_reserve;
+        std::uint64_t size_stack_commit;
+        std::uint64_t size_heap_reserve;
+        std::uint64_t size_heap_commit;
+
+        std::uint32_t ldr_flags;
+
+        std::uint32_t num_data_directories;
+        DataDirectory data_directories[16];
+    };
+    struct OptionalHeaderX86 final
+    {
+        // Standard fields.
+        std::uint16_t magic{};
+        std::uint16_t linker_version{};
+
+        std::uint32_t size_code{};
+        std::uint32_t size_init_data{};
+        std::uint32_t size_uninit_data{};
+
+        std::uint32_t entry_point{};
+        std::uint32_t base_of_code{};
+        std::uint32_t base_of_data{};
+
+        // NT additional fields.
+        std::uint32_t image_base{};
+        std::uint32_t section_alignment{};
+        std::uint32_t file_alignment{};
+
+        std::uint32_t os_version{};
+        std::uint32_t img_version{};
+        std::uint32_t subsystem_version{};
+        std::uint32_t win32_version_value{};
+
+        std::uint32_t size_image{};
+        std::uint32_t size_headers{};
+
+        std::uint32_t checksum{};
+        std::uint16_t subsystem{};
+        std::uint16_t characteristics{};
+
+        std::uint32_t size_stack_reserve{};
+        std::uint32_t size_stack_commit{};
+        std::uint32_t size_heap_reserve{};
+        std::uint32_t size_heap_commit{};
+
+        std::uint32_t ldr_flags{};
+
+        std::uint32_t num_data_directories{};
+        DataDirectory data_directories[16]{};
+    };
+    template<bool x64 = true>
+    using OptionalHeader = std::conditional_t<x64, OptionalHeaderX64, OptionalHeaderX86>;
+
+    struct FileHeader final
+    {
+        std::uint16_t machine;
+        std::uint16_t num_sections;
+        std::uint32_t timedate_stamp;
+        std::uint32_t ptr_symbols;
+        std::uint32_t num_symbols;
+        std::uint16_t size_optional_header;
+        std::uint16_t characteristics;
+    };
+
+    struct DosHeader final
+    {
+        std::uint16_t e_magic;
+        std::uint16_t e_cblp;
+        std::uint16_t e_cp;
+        std::uint16_t e_crlc;
+        std::uint16_t e_cparhdr;
+        std::uint16_t e_minalloc;
+        std::uint16_t e_maxalloc;
+        std::uint16_t e_ss;
+        std::uint16_t e_sp;
+        std::uint16_t e_csum;
+        std::uint16_t e_ip;
+        std::uint16_t e_cs;
+        std::uint16_t e_lfarlc;
+        std::uint16_t e_ovno;
+        std::uint16_t e_res[4];
+        std::uint16_t e_oemid;
+        std::uint16_t e_oeminfo;
+        std::uint16_t e_res2[10];
+        std::uint32_t e_lfanew;
+    };
+
+    enum class NtArchitecture
+    {
+        x32_bit,
+        x64_bit,
+    };
+    template<NtArchitecture architecture>
+    struct ImageNtHeaders final
+    {
+        std::uint32_t signature;
+        FileHeader file_header;
+        OptionalHeader<architecture == NtArchitecture::x64_bit> optional_header;
+    };
+
+    struct SectionHeader final
+    {
+        char name[8];
+        union
+        {
+            std::uint32_t physical_address;
+            std::uint32_t virtual_size;
+        };
+        std::uint32_t virtual_address;
+
+        std::uint32_t size_raw_data;
+        std::uint32_t ptr_raw_data;
+
+        std::uint32_t ptr_relocs;
+        std::uint32_t ptr_line_numbers;
+        std::uint32_t num_relocs;
+        std::uint32_t num_line_numbers;
+
+        std::uint32_t characteristics;
+    };
+    // ReSharper restore CppDeclaratorNeverUsed
+
+    using NtHeaderVariant =
+            std::variant<ImageNtHeaders<NtArchitecture::x64_bit>, ImageNtHeaders<NtArchitecture::x32_bit>>;
+} // namespace
+
+// Internal PE scanner functions
 namespace
 {
     [[nodiscard]]
-    NtHeaderVariant get_nt_header_from_file(std::fstream& file, const DosHeader& dos_header)
+    std::optional<NtHeaderVariant> get_nt_header_from_file(std::fstream& file, const DosHeader& dos_header)
     {
-        ImageNtHeaders<NtArchitecture::x32_bit> x86_headers;
+        ImageNtHeaders<NtArchitecture::x32_bit> x86_headers{};
         file.seekg(dos_header.e_lfanew, std::ios::beg);
         file.read(reinterpret_cast<char*>(&x86_headers), sizeof(x86_headers));
 
         if (x86_headers.optional_header.magic == opt_hdr32_magic)
             return x86_headers;
 
-        ImageNtHeaders<NtArchitecture::x64_bit> x64_headers;
+        if (x86_headers.optional_header.magic != opt_hdr64_magic)
+            return std::nullopt;
+
+        ImageNtHeaders<NtArchitecture::x64_bit> x64_headers{};
         file.seekg(dos_header.e_lfanew, std::ios::beg);
         file.read(reinterpret_cast<char*>(&x64_headers), sizeof(x64_headers));
 
         return x64_headers;
     }
 
+    [[nodiscard]]
+    std::optional<NtHeaderVariant> get_nt_header_from_loaded_module(const void* module_base_address)
+    {
+        const auto module_byte_ptr = static_cast<const std::byte*>(module_base_address);
+        ImageNtHeaders<NtArchitecture::x32_bit> x86_headers{};
+        const auto dos_header = static_cast<const DosHeader*>(module_base_address);
+
+        x86_headers = *reinterpret_cast<const ImageNtHeaders<NtArchitecture::x32_bit>*>(module_byte_ptr
+                                                                                        + dos_header->e_lfanew);
+
+        if (x86_headers.optional_header.magic == opt_hdr32_magic)
+            return x86_headers;
+
+        if (x86_headers.optional_header.magic != opt_hdr64_magic)
+            return std::nullopt;
+
+        return *reinterpret_cast<const ImageNtHeaders<NtArchitecture::x64_bit>*>(module_byte_ptr
+                                                                                 + dos_header->e_lfanew);
+    }
+
     [[nodiscard]]
     constexpr bool invalid_dos_header_file(const DosHeader& dos_header)
     {
@@ -48,39 +235,105 @@ namespace
         constexpr std::uint32_t nt_hdr_magic = 0x4550;
         return std::visit([](const auto& header) -> bool { return header.signature != nt_hdr_magic; }, variant);
     }
+
+    struct ExtractedSection
+    {
+        std::uint64_t virtual_base_addr;
+        std::uint64_t raw_base_addr;
+        std::vector<std::byte> data;
+    };
+
+    [[nodiscard]]
+    std::optional<ExtractedSection> extract_section_from_pe_file(const std::filesystem::path& path_to_file,
+                                                                 const std::string_view& section_name)
+    {
+        std::fstream file(path_to_file, std::ios::binary | std::ios::in);
+
+        if (!file.is_open()) [[unlikely]]
+            return std::nullopt;
+
+        DosHeader dos_header{};
+        file.read(reinterpret_cast<char*>(&dos_header), sizeof(dos_header));
+
+        if (invalid_dos_header_file(dos_header)) [[unlikely]]
+            return std::nullopt;
+
+        const auto nt_headers = get_nt_header_from_file(file, dos_header);
+
+        if (!nt_headers)
+            return std::nullopt;
+
+        if (invalid_nt_header_file(nt_headers.value())) [[unlikely]]
+            return std::nullopt;
+
+        return std::visit(
+                [&file, &dos_header, &section_name](auto& concrete_headers) -> std::optional<ExtractedSection>
+                {
+                    constexpr std::size_t size_of_signature = sizeof(concrete_headers.signature);
+                    const auto offset_to_segment_table = dos_header.e_lfanew
+                                                         + concrete_headers.file_header.size_optional_header
+                                                         + sizeof(FileHeader) + size_of_signature;
+
+                    file.seekg(static_cast<std::fstream::off_type>(offset_to_segment_table), std::ios::beg);
+
+                    for (std::size_t i = 0; i < concrete_headers.file_header.num_sections; i++)
+                    {
+                        SectionHeader current_section{};
+                        file.read(reinterpret_cast<char*>(&current_section), sizeof(current_section));
+
+                        if (std::string_view(current_section.name) != section_name)
+                            continue;
+
+                        std::vector<std::byte> section_data(current_section.size_raw_data);
+
+                        file.seekg(current_section.ptr_raw_data, std::ios::beg);
+                        file.read(reinterpret_cast<char*>(section_data.data()),
+                                  static_cast<std::streamsize>(section_data.size()));
+                        return ExtractedSection{.virtual_base_addr = current_section.virtual_address
+                                                                     + concrete_headers.optional_header.image_base,
+                                                .raw_base_addr = current_section.ptr_raw_data,
+                                                .data = std::move(section_data)};
+                    }
+                    return std::nullopt;
+                },
+                nt_headers.value());
+    }
 } // namespace
 
 namespace omath
 {
 
-    std::optional<std::uintptr_t>
+    std::optional<std::uintptr_t> PePatternScanner::scan_for_pattern_in_loaded_module(const void* module_base_address,
-    PePatternScanner::scan_for_pattern_in_loaded_module([[maybe_unused]] const std::string_view& module_name,
+                                                                                      const std::string_view& pattern)
-                                                        [[maybe_unused]] const std::string_view& pattern)
     {
-#ifdef _WIN32
+        const auto base_address = reinterpret_cast<std::uintptr_t>(module_base_address);
-        const auto base_address = reinterpret_cast<std::uintptr_t>(GetModuleHandleA(module_name.data()));
 
         if (!base_address)
             return std::nullopt;
 
-        const auto dos_headers = reinterpret_cast<PIMAGE_DOS_HEADER>(base_address);
+        auto nt_header_variant = get_nt_header_from_loaded_module(module_base_address);
-        const auto image_nt_headers = reinterpret_cast<PIMAGE_NT_HEADERS>(base_address + dos_headers->e_lfanew);
 
-        // Define .code segment as scan area
+        if (!nt_header_variant)
-        const auto start = image_nt_headers->OptionalHeader.BaseOfCode;
+            return std::nullopt;
-        const auto scan_size = image_nt_headers->OptionalHeader.SizeOfCode;
 
-        const auto scan_range = std::span{reinterpret_cast<std::byte*>(base_address) + start, scan_size};
+        return std::visit(
+                [base_address, &pattern](const auto& nt_header) -> std::optional<std::uintptr_t>
+                {
+                    // Define .code segment as scan area
+                    const auto start = nt_header.optional_header.base_of_code;
+                    const auto scan_size = nt_header.optional_header.size_code;
 
-        const auto result = PatternScanner::scan_for_pattern(scan_range, pattern);
+                    const auto scan_range = std::span{reinterpret_cast<std::byte*>(base_address) + start, scan_size};
 
-        if (result != scan_range.cend())
+                    // ReSharper disable once CppTooWideScopeInitStatement
-            return reinterpret_cast<std::uintptr_t>(&*result);
+                    const auto result = PatternScanner::scan_for_pattern(scan_range, pattern);
 
-        return std::nullopt;
+                    if (result != scan_range.end())
-#else
+                        return reinterpret_cast<std::uintptr_t>(&*result);
-        throw std::runtime_error("Pattern scan for loaded modules is only for windows platform");
+
-#endif
+                    return std::nullopt;
+                },
+                nt_header_variant.value());
     }
     std::optional<PeSectionScanResult>
     PePatternScanner::scan_for_pattern_in_file(const std::filesystem::path& path_to_file,
@@ -103,56 +356,4 @@ namespace omath
                                    .raw_base_addr = pe_section->raw_base_addr,
                                    .target_offset = offset};
     }
-    std::optional<PePatternScanner::Section>
-    PePatternScanner::extract_section_from_pe_file(const std::filesystem::path& path_to_file,
-                                                   const std::string_view& section_name)
-    {
-        std::fstream file(path_to_file, std::ios::binary | std::ios::in);
-
-        if (!file.is_open()) [[unlikely]]
-            return std::nullopt;
-
-        DosHeader dos_header{};
-        file.read(reinterpret_cast<char*>(&dos_header), sizeof(dos_header));
-
-        if (invalid_dos_header_file(dos_header)) [[unlikely]]
-            return std::nullopt;
-
-        const auto nt_headers = get_nt_header_from_file(file, dos_header);
-
-        if (invalid_nt_header_file(nt_headers)) [[unlikely]]
-            return std::nullopt;
-
-        return std::visit(
-                [&file, &dos_header, &section_name](auto& concrete_headers) -> std::optional<Section>
-                {
-                    constexpr std::size_t size_of_signature = sizeof(concrete_headers.signature);
-                    const auto offset_to_segment_table = dos_header.e_lfanew
-                                                         + concrete_headers.file_header.size_optional_header
-                                                         + sizeof(FileHeader) + size_of_signature;
-
-                    file.seekg(static_cast<std::fstream::off_type>(offset_to_segment_table), std::ios::beg);
-
-                    for (std::size_t i = 0; i < concrete_headers.file_header.num_sections; i++)
-                    {
-                        SectionHeader current_section{};
-                        file.read(reinterpret_cast<char*>(&current_section), sizeof(current_section));
-
-                        if (std::string_view(current_section.name) != section_name)
-                            continue;
-
-                        std::vector<std::byte> section_data(current_section.size_raw_data);
-
-                        file.seekg(current_section.ptr_raw_data, std::ios::beg);
-                        file.read(reinterpret_cast<char*>(section_data.data()),
-                                  static_cast<std::streamsize>(section_data.size()));
-                        return Section{.virtual_base_addr = current_section.virtual_address
-                                                            + concrete_headers.optional_header.image_base,
-                                       .raw_base_addr = current_section.ptr_raw_data,
-                                       .data = std::move(section_data)};
-                    }
-                    return std::nullopt;
-                },
-                nt_headers);
-    }
 } // namespace omath

tests/CMakeLists.txt

@@ -16,5 +16,4 @@ set_target_properties(${PROJECT_NAME} PROPERTIES
 
 
 target_link_libraries(${PROJECT_NAME} PRIVATE gtest gtest_main omath::omath)
-
 gtest_discover_tests(${PROJECT_NAME})

tests/engines/unit_test_frostbite_engine.cpp

@@ -0,0 +1,236 @@
+//
+// Created by Vlad on 10/23/2025.
+//
+#include <gtest/gtest.h>
+#include <omath/engines/frostbite_engine/camera.hpp>
+#include <omath/engines/frostbite_engine/constants.hpp>
+#include <omath/engines/frostbite_engine/formulas.hpp>
+#include <print>
+#include <random>
+
+TEST(unit_test_frostbite_engine, ForwardVector)
+{
+    const auto forward = omath::frostbite_engine::forward_vector({});
+
+    EXPECT_EQ(forward, omath::frostbite_engine::k_abs_forward);
+}
+
+TEST(unit_test_frostbite_engine, ForwardVectorRotationYaw)
+{
+    omath::frostbite_engine::ViewAngles angles;
+
+    angles.yaw = omath::frostbite_engine::YawAngle::from_degrees(90.f);
+
+    const auto forward = omath::frostbite_engine::forward_vector(angles);
+    EXPECT_NEAR(forward.x, omath::frostbite_engine::k_abs_right.x, 0.00001f);
+    EXPECT_NEAR(forward.y, omath::frostbite_engine::k_abs_right.y, 0.00001f);
+    EXPECT_NEAR(forward.z, omath::frostbite_engine::k_abs_right.z, 0.00001f);
+}
+
+TEST(unit_test_frostbite_engine, ForwardVectorRotationPitch)
+{
+    omath::frostbite_engine::ViewAngles angles;
+
+    angles.pitch = omath::frostbite_engine::PitchAngle::from_degrees(-90.f);
+
+    const auto forward = omath::frostbite_engine::forward_vector(angles);
+    EXPECT_NEAR(forward.x, omath::frostbite_engine::k_abs_up.x, 0.00001f);
+    EXPECT_NEAR(forward.y, omath::frostbite_engine::k_abs_up.y, 0.00001f);
+    EXPECT_NEAR(forward.z, omath::frostbite_engine::k_abs_up.z, 0.00001f);
+}
+
+TEST(unit_test_frostbite_engine, ForwardVectorRotationRoll)
+{
+    omath::frostbite_engine::ViewAngles angles;
+
+    angles.roll = omath::frostbite_engine::RollAngle::from_degrees(-90.f);
+
+    const auto forward = omath::frostbite_engine::up_vector(angles);
+    EXPECT_NEAR(forward.x, omath::frostbite_engine::k_abs_right.x, 0.00001f);
+    EXPECT_NEAR(forward.y, omath::frostbite_engine::k_abs_right.y, 0.00001f);
+    EXPECT_NEAR(forward.z, omath::frostbite_engine::k_abs_right.z, 0.00001f);
+}
+
+TEST(unit_test_frostbite_engine, RightVector)
+{
+    const auto right = omath::frostbite_engine::right_vector({});
+
+    EXPECT_EQ(right, omath::frostbite_engine::k_abs_right);
+}
+
+TEST(unit_test_frostbite_engine, UpVector)
+{
+    const auto up = omath::frostbite_engine::up_vector({});
+    EXPECT_EQ(up, omath::frostbite_engine::k_abs_up);
+}
+
+TEST(unit_test_frostbite_engine, ProjectTargetMovedFromCamera)
+{
+    constexpr auto fov = omath::projection::FieldOfView::from_degrees(60.f);
+    const auto cam = omath::frostbite_engine::Camera({0, 0, 0}, {}, {1280.f, 720.f}, fov, 0.01f, 1000.f);
+
+    for (float distance = 0.02f; distance < 100.f; distance += 0.01f)
+    {
+        const auto projected = cam.world_to_screen({0, 0, distance});
+
+        EXPECT_TRUE(projected.has_value());
+
+        if (!projected.has_value())
+            continue;
+
+        EXPECT_NEAR(projected->x, 640, 0.00001f);
+        EXPECT_NEAR(projected->y, 360, 0.00001f);
+    }
+}
+TEST(unit_test_frostbite_engine, Project)
+{
+    constexpr auto fov = omath::projection::FieldOfView::from_degrees(60.f);
+
+    const auto cam = omath::frostbite_engine::Camera({0, 0, 0}, {}, {1280.f, 720.f}, fov, 0.03f, 1000.f);
+    const auto proj = cam.world_to_screen<omath::frostbite_engine::Camera::ScreenStart::BOTTOM_LEFT_CORNER>({10.f, 3, 10.f});
+
+    EXPECT_NEAR(proj->x, 1263.538, 0.001f);
+    EXPECT_NEAR(proj->y, 547.061f, 0.001f);
+}
+
+TEST(unit_test_frostbite_engine, CameraSetAndGetFov)
+{
+    constexpr auto fov = omath::projection::FieldOfView::from_degrees(90.f);
+    auto cam = omath::frostbite_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.01f, 1000.f);
+
+    EXPECT_EQ(cam.get_field_of_view().as_degrees(), 90.f);
+    cam.set_field_of_view(omath::projection::FieldOfView::from_degrees(50.f));
+
+    EXPECT_EQ(cam.get_field_of_view().as_degrees(), 50.f);
+}
+
+TEST(unit_test_frostbite_engine, CameraSetAndGetOrigin)
+{
+    auto cam = omath::frostbite_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, {}, 0.01f, 1000.f);
+
+    EXPECT_EQ(cam.get_origin(), omath::Vector3<float>{});
+    cam.set_field_of_view(omath::projection::FieldOfView::from_degrees(50.f));
+
+    EXPECT_EQ(cam.get_field_of_view().as_degrees(), 50.f);
+}
+TEST(unit_test_frostbite_engine, loook_at_random_all_axis)
+{
+    std::mt19937 gen(std::random_device{}()); // Seed with a non-deterministic source
+    std::uniform_real_distribution<float> dist(-1000.f, 1000.f);
+
+    constexpr auto fov = omath::projection::FieldOfView::from_degrees(90.f);
+    auto cam = omath::frostbite_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.001f, 10000.f);
+
+    std::size_t failed_points = 0;
+
+    for (int i = 0; i < 1000; i++)
+    {
+        const auto position_to_look = omath::Vector3<float>{dist(gen), dist(gen), dist(gen)};
+
+        if (cam.get_origin().distance_to(position_to_look) < 10)
+            continue;
+
+        cam.look_at(position_to_look);
+
+        auto projected_pos = cam.world_to_view_port(position_to_look);
+
+        EXPECT_TRUE(projected_pos.has_value());
+
+        if (!projected_pos)
+            continue;
+
+        if (std::abs(projected_pos->x - 0.f) >= 0.0001f || std::abs(projected_pos->y - 0.f) >= 0.0001f)
+            failed_points++;
+    }
+    EXPECT_LE(failed_points, 100);
+}
+
+TEST(unit_test_frostbite_engine, loook_at_random_x_axis)
+{
+    std::mt19937 gen(std::random_device{}()); // Seed with a non-deterministic source
+    std::uniform_real_distribution<float> dist(-1000.f, 1000.f);
+
+    constexpr auto fov = omath::projection::FieldOfView::from_degrees(90.f);
+    auto cam = omath::frostbite_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.001f, 10000.f);
+
+    std::size_t failed_points = 0;
+    for (int i = 0; i < 1000; i++)
+    {
+        const auto position_to_look = omath::Vector3<float>{dist(gen), 0.f, 0.f};
+        if (cam.get_origin().distance_to(position_to_look) < 10)
+            continue;
+
+        cam.look_at(position_to_look);
+
+        auto projected_pos = cam.world_to_view_port(position_to_look);
+
+        EXPECT_TRUE(projected_pos.has_value());
+
+        if (!projected_pos)
+            continue;
+
+        if (std::abs(projected_pos->x - 0.f) >= 0.001f || std::abs(projected_pos->y - 0.f) >= 0.001f)
+            failed_points++;
+    }
+    EXPECT_LE(failed_points, 100);
+}
+
+TEST(unit_test_frostbite_engine, loook_at_random_y_axis)
+{
+    std::mt19937 gen(std::random_device{}()); // Seed with a non-deterministic source
+    std::uniform_real_distribution<float> dist(-1000.f, 1000.f);
+
+    constexpr auto fov = omath::projection::FieldOfView::from_degrees(90.f);
+    auto cam = omath::frostbite_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.001f, 10000.f);
+
+    std::size_t failed_points = 0;
+    for (int i = 0; i < 1000; i++)
+    {
+        const auto position_to_look = omath::Vector3<float>{0.f, dist(gen), 0.f};
+        if (cam.get_origin().distance_to(position_to_look) < 10)
+            continue;
+
+        cam.look_at(position_to_look);
+
+        auto projected_pos = cam.world_to_view_port(position_to_look);
+
+        EXPECT_TRUE(projected_pos.has_value());
+
+        if (!projected_pos)
+            continue;
+
+        if (std::abs(projected_pos->x - 0.f) >= 0.01f || std::abs(projected_pos->y - 0.f) >= 0.01f)
+            failed_points++;
+    }
+    EXPECT_LE(failed_points, 100);
+}
+
+TEST(unit_test_frostbite_engine, loook_at_random_z_axis)
+{
+    std::mt19937 gen(std::random_device{}()); // Seed with a non-deterministic source
+    std::uniform_real_distribution<float> dist(-1000.f, 1000.f);
+
+    constexpr auto fov = omath::projection::FieldOfView::from_degrees(90.f);
+    auto cam = omath::frostbite_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.001f, 10000.f);
+
+    std::size_t failed_points = 0;
+    for (int i = 0; i < 1000; i++)
+    {
+        const auto position_to_look = omath::Vector3<float>{0.f, 0.f, dist(gen)};
+        if (cam.get_origin().distance_to(position_to_look) < 10)
+            continue;
+
+        cam.look_at(position_to_look);
+
+        auto projected_pos = cam.world_to_view_port(position_to_look);
+
+        EXPECT_TRUE(projected_pos.has_value());
+
+        if (!projected_pos)
+            continue;
+
+        if (std::abs(projected_pos->x - 0.f) >= 0.01f || std::abs(projected_pos->y - 0.f) >= 0.01f)
+            failed_points++;
+    }
+    EXPECT_LE(failed_points, 100);
+}

tests/engines/unit_test_unity_engine.cpp

@@ -87,9 +87,9 @@ TEST(unit_test_unity_engine, Project)
     constexpr auto fov = omath::projection::FieldOfView::from_degrees(60.f);
 
     const auto cam = omath::unity_engine::Camera({0, 0, 0}, {}, {1280.f, 720.f}, fov, 0.03f, 1000.f);
-    const auto proj = cam.world_to_screen({5.f, 3, 10.f});
+    const auto proj = cam.world_to_screen<omath::unity_engine::Camera::ScreenStart::BOTTOM_LEFT_CORNER>({10.f, 3, 10.f});
 
-    EXPECT_NEAR(proj->x, 951.769f, 0.001f);
+    EXPECT_NEAR(proj->x, 1263.538, 0.001f);
     EXPECT_NEAR(proj->y, 547.061f, 0.001f);
 }
 

tests/general/unit_test_mat.cpp

@@ -214,3 +214,20 @@ TEST(UnitTestMatStandalone, Enverse)
 
     EXPECT_EQ(mv, m.inverted());
 }
+
+TEST(UnitTestMatStandalone, Equanity)
+{
+    constexpr omath::Vector3<float> left_handed = {0, 2, 10};
+    constexpr omath::Vector3<float> right_handed = {0, 2, -10};
+
+    auto proj_left_handed = omath::mat_perspective_left_handed(90.f, 16.f / 9.f, 0.1, 1000);
+    auto proj_right_handed = omath::mat_perspective_right_handed(90.f, 16.f / 9.f, 0.1, 1000);
+
+    auto ndc_left_handed = proj_left_handed * omath::mat_column_from_vector(left_handed);
+    auto ndc_right_handed = proj_right_handed * omath::mat_column_from_vector(right_handed);
+
+    ndc_left_handed /= ndc_left_handed.at(3, 0);
+    ndc_right_handed /= ndc_right_handed.at(3, 0);
+
+    EXPECT_EQ(ndc_left_handed, ndc_right_handed);
+}

tests/general/unit_test_prediction.cpp

@@ -1,6 +1,6 @@
 #include <gtest/gtest.h>
 #include <omath/projectile_prediction/proj_pred_engine_legacy.hpp>
-
+#include <omath/engines/source_engine/traits/camera_trait.hpp>
 TEST(UnitTestPrediction, PredictionTest)
 {
     constexpr omath::projectile_prediction::Target target{
@@ -10,8 +10,9 @@ TEST(UnitTestPrediction, PredictionTest)
     const auto viewPoint =
             omath::projectile_prediction::ProjPredEngineLegacy(400, 1.f / 1000.f, 50, 5.f).maybe_calculate_aim_point(proj, target);
 
-    const auto [pitch, yaw, _] = proj.m_origin.view_angle_to(viewPoint.value()).as_tuple();
 
-    EXPECT_NEAR(42.547142, pitch, 0.01f);
+    const auto [pitch, yaw, _] =omath::source_engine::CameraTrait::calc_look_at_angle(proj.m_origin, viewPoint.value());
-    EXPECT_NEAR(-1.181189, yaw, 0.01f);
+
+    EXPECT_NEAR(-42.547142, pitch.as_degrees(), 0.01f);
+    EXPECT_NEAR(-1.181189, yaw.as_degrees(), 0.01f);
 }