Merge pull request #34 from orange-cpp/u/orange-cpp/add-unity

U/orange cpp/add unity

CMakeLists.txt

@@ -10,13 +10,16 @@ option(OMATH_THREAT_WARNING_AS_ERROR "Set highest level of warnings and force co
 option(OMATH_BUILD_AS_SHARED_LIBRARY "Build Omath as .so or .dll" OFF)
 option(OMATH_USE_AVX2 "Omath will use AVX2 to boost performance" ON)
 option(OMATH_IMGUI_INTEGRATION "Omath will define method to convert omath types to imgui types" OFF)
+option(OMATH_BUILD_EXAMPLES "Build example projects with you can learn & play" OFF)
 
 if (OMATH_BUILD_AS_SHARED_LIBRARY)
-    add_library(omath SHARED source/Vector3.cpp)
+    add_library(omath SHARED source/Matrix.cpp)
 else()
     add_library(omath STATIC source/Matrix.cpp)
 endif()
 
+add_library(omath::omath ALIAS omath)
+
 if (OMATH_IMGUI_INTEGRATION)
     target_compile_definitions(omath PUBLIC OMATH_IMGUI_INTEGRATION)
 endif()
@@ -47,6 +50,10 @@ if(OMATH_BUILD_TESTS)
     add_subdirectory(tests)
 endif()
 
+if (OMATH_BUILD_EXAMPLES)
+    add_subdirectory(examples)
+endif()
+
 if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC" AND OMATH_THREAT_WARNING_AS_ERROR)
     target_compile_options(omath PRIVATE /W4 /WX)
 elseif(OMATH_THREAT_WARNING_AS_ERROR)

README.md

@@ -1,6 +1,6 @@
 <div align = center>
 
-![banner](https://i.imgur.com/sjtpKi8.png)
+![banner](https://i.imgur.com/SM9ccP6.png)
 
 ![GitHub License](https://img.shields.io/github/license/orange-cpp/omath)
 ![GitHub contributors](https://img.shields.io/github/contributors/orange-cpp/omath)
@@ -12,14 +12,14 @@
 Oranges's Math Library (omath) is a comprehensive, open-source library aimed at providing efficient, reliable, and versatile mathematical functions and algorithms. Developed primarily in C++, this library is designed to cater to a wide range of mathematical operations essential in scientific computing, engineering, and academic research.
 
 ## 👁‍🗨 Features
-- **Efficiency**: Optimized for performance, ensuring quick computations.
+- **Efficiency**: Optimized for performance, ensuring quick computations using AVX2.
 - **Versatility**: Includes a wide array of mathematical functions and algorithms.
 - **Ease of Use**: Simplified interface for convenient integration into various projects.
 - **Projectile Prediction**: Projectile prediction engine with O(N) algo complexity, that can power you projectile aim-bot.
 - **3D Projection**: No need to find view-projection matrix anymore you can make your own projection pipeline.
 - **Collision Detection**: Production ready code to handle collision detection by using simple interfaces.
 - **No Additional Dependencies**: No additional dependencies need to use OMath except unit test execution
-
+- **Ready for meta-programming**: Omath use templates for common types like Vectors, Matrixes etc, to handle all types!
 ## ⏬ Getting Started
 ### Prerequisites
 - C++ Compiler
@@ -72,8 +72,11 @@ TEST(UnitTestProjection, IsPointOnScreen)
 With `omath/projection` module you can achieve simple ESP hack for powered by Source/Unreal/Unity engine games, like [Apex Legends](https://store.steampowered.com/app/1172470/Apex_Legends/).
 
 ![banner](https://i.imgur.com/lcJrfcZ.png)
-![Watch Video](https://youtu.be/lM_NJ1yCunw?si=5E87OrQMeypxSJ3E)
+Or for InfinityWard Engine based games. Like Call of Duty Black Ops 2!
+![banner](https://i.imgur.com/F8dmdoo.png)
 
+Or even advanced projectile aimbot
+[Watch Video](https://youtu.be/lM_NJ1yCunw?si=5E87OrQMeypxSJ3E)
 </details>
 
 ## 🫵🏻 Contributing

examples/CMakeLists.txt

@@ -0,0 +1,4 @@
+project(examples)
+
+add_executable(ExampleProjectionMatrixBuilder example_proj_mat_builder.cpp)
+target_link_libraries(ExampleProjectionMatrixBuilder PRIVATE omath::omath)

examples/example_proj_mat_builder.cpp

@@ -0,0 +1,40 @@
+//
+// Created by Vlad on 3/19/2025.
+//
+
+
+#include <iostream>
+#include <print>
+#include <omath/engines/opengl_engine/formulas.hpp>
+
+
+int main()
+{
+    std::println("OMATH Projection Matrix Builder");
+
+    float fov = 0;
+    float near = 0;
+    float far = 0;
+    float viewPortWidth = 0;
+    float viewPortHeight = 0;
+
+    std::print("Enter camera fov: ");
+    std::cin >> fov;
+
+    std::print("Enter camera z near: ");
+    std::cin >> near;
+
+    std::print("Enter camera z far: ");
+    std::cin >> far;
+
+    std::print("Enter camera screen width: ");
+    std::cin >> viewPortWidth;
+
+    std::print("Enter camera screen height: ");
+    std::cin >> viewPortHeight;
+
+    const auto mat =
+            omath::opengl_engine::CalcPerspectiveProjectionMatrix(fov, viewPortWidth / viewPortHeight, near, far);
+
+    std::print("{}", mat.ToString());
+};

include/omath/angle.hpp

@@ -3,7 +3,7 @@
 //
 
 #pragma once
-#include "omath/Angles.hpp"
+#include "omath/angles.hpp"
 #include <algorithm>
 
 namespace omath

include/omath/angles.hpp

@@ -3,8 +3,8 @@
 //
 
 #pragma once
-#include <numbers>
 #include <cmath>
+#include <numbers>
 
 namespace omath::angles
 {

include/omath/collision/line_tracer.hpp

@@ -3,8 +3,8 @@
 //
 #pragma once
 
-#include "omath/Vector3.hpp"
-#include "omath/Triangle.hpp"
+#include "omath/triangle.hpp"
+#include "omath/vector3.hpp"
 
 namespace omath::collision
 {

include/omath/color.hpp

@@ -4,9 +4,9 @@
 
 #pragma once
 
-#include "omath/Vector3.hpp"
 #include <cstdint>
-#include "omath/Vector4.hpp"
+#include "omath/vector3.hpp"
+#include "omath/vector4.hpp"
 
 namespace omath
 {

include/omath/engines/iw_engine/Formulas.hpp

@@ -1,56 +0,0 @@
-//
-// Created by Vlad on 3/17/2025.
-//
-
-#pragma once
-#include "Constants.hpp"
-
-namespace omath::iw_engine
-{
-    [[nodiscard]]
-    inline Vector3<float> ForwardVector(const ViewAngles& angles)
-    {
-        const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsForward);
-
-        return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
-    }
-
-    [[nodiscard]]
-    inline Vector3<float> RightVector(const ViewAngles& angles)
-    {
-        const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsRight);
-
-        return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
-    }
-
-    [[nodiscard]]
-    inline Vector3<float> UpVector(const ViewAngles& angles)
-    {
-        const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsUp);
-
-        return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
-    }
-
-    [[nodiscard]] inline Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin)
-    {
-        return MatCameraView(ForwardVector(angles), RightVector(angles), UpVector(angles), cam_origin);
-    }
-
-
-    [[nodiscard]]
-    inline Mat4x4 CalcPerspectiveProjectionMatrix(const float fieldOfView, const float aspectRatio, const float near,
-                                                  const float far)
-    {
-        // NOTE: Need magic number to fix fov calculation, since source inherit Quake proj matrix calculation
-        constexpr auto kMultiplyFactor = 0.75f;
-        const float fovHalfTan = std::tan(angles::DegreesToRadians(fieldOfView) / 2.f) * kMultiplyFactor;
-
-        return
-        {
-            {1.f / (aspectRatio * fovHalfTan), 0, 0, 0},
-            {0, 1.f / fovHalfTan, 0, 0},
-            {0, 0, (far + near) / (far - near), -(2.f * far * near) / (far - near)},
-            {0, 0, 1, 0},
-        };
-    }
-} // namespace omath::source

include/omath/engines/iw_engine/camera.hpp

@@ -3,8 +3,8 @@
 //
 
 #pragma once
-#include "Constants.hpp"
-#include "omath/projection/Camera.hpp"
+#include "omath/engines/iw_engine/constants.hpp"
+#include "omath/projection/camera.hpp"
 
 namespace omath::iw_engine
 {

include/omath/engines/iw_engine/constants.hpp

@@ -3,10 +3,10 @@
 //
 
 #pragma once
-#include <omath/Vector3.hpp>
-#include <omath/Mat.hpp>
-#include <omath/Angle.hpp>
-#include <omath/ViewAngles.hpp>
+#include <omath/vector3.hpp>
+#include <omath/mat.hpp>
+#include <omath/angle.hpp>
+#include <omath/view_angles.hpp>
 
 namespace omath::iw_engine
 {

include/omath/engines/iw_engine/formulas.hpp

@@ -0,0 +1,24 @@
+//
+// Created by Vlad on 3/17/2025.
+//
+
+#pragma once
+#include "omath/engines/iw_engine/constants.hpp"
+
+namespace omath::iw_engine
+{
+    [[nodiscard]]
+    Vector3<float> ForwardVector(const ViewAngles& angles);
+
+    [[nodiscard]]
+    Vector3<float> RightVector(const ViewAngles& angles);
+
+    [[nodiscard]]
+    Vector3<float> UpVector(const ViewAngles& angles);
+
+    [[nodiscard]] Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin);
+
+
+    [[nodiscard]]
+    Mat4x4 CalcPerspectiveProjectionMatrix(float fieldOfView, float aspectRatio, float near, float far);
+} // namespace omath::iw_engine

include/omath/engines/opengl_engine/Formulas.hpp

@@ -1,54 +0,0 @@
-//
-// Created by Orange on 12/23/2024.
-//
-#pragma once
-#include "Constants.hpp"
-
-
-namespace omath::opengl_engine
-{
-    [[nodiscard]]
-    inline Vector3<float> ForwardVector(const ViewAngles& angles)
-    {
-        const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsForward);
-
-        return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
-    }
-
-    [[nodiscard]]
-    inline Vector3<float> RightVector(const ViewAngles& angles)
-    {
-        const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsRight);
-
-        return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
-    }
-
-    [[nodiscard]]
-    inline Vector3<float> UpVector(const ViewAngles& angles)
-    {
-        const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsUp);
-
-        return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
-    }
-
-    [[nodiscard]] inline Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin)
-    {
-        return MatCameraView<float, MatStoreType::COLUMN_MAJOR>(-ForwardVector(angles), RightVector(angles), UpVector(angles), cam_origin);
-    }
-
-
-    [[nodiscard]]
-    inline Mat4x4 CalcPerspectiveProjectionMatrix(const float fieldOfView, const float aspectRatio, const float near,
-                                                  const float far)
-    {
-        const float fovHalfTan = std::tan(angles::DegreesToRadians(fieldOfView) / 2.f);
-
-        return {
-                    {1.f / (aspectRatio * fovHalfTan), 0, 0, 0},
-                    {0, 1.f / (fovHalfTan), 0, 0},
-                    {0, 0, -(far + near) / (far - near), -(2.f * far * near) / (far - near)},
-                    {0, 0, -1, 0},
-
-            };
-    }
-}

include/omath/engines/opengl_engine/camera.hpp

@@ -2,8 +2,8 @@
 // Created by Orange on 12/23/2024.
 //
 #pragma once
-#include "Constants.hpp"
-#include "omath/projection/Camera.hpp"
+#include "omath/engines/opengl_engine/constants.hpp"
+#include "omath/projection/camera.hpp"
 
 namespace omath::opengl_engine
 {

include/omath/engines/opengl_engine/constants.hpp

@@ -3,10 +3,10 @@
 //
 #pragma once
 
-#include <omath/Vector3.hpp>
-#include <omath/Mat.hpp>
-#include <omath/Angle.hpp>
-#include <omath/ViewAngles.hpp>
+#include <omath/angle.hpp>
+#include <omath/mat.hpp>
+#include <omath/vector3.hpp>
+#include <omath/view_angles.hpp>
 
 namespace omath::opengl_engine
 {

include/omath/engines/opengl_engine/formulas.hpp

@@ -0,0 +1,24 @@
+//
+// Created by Orange on 12/23/2024.
+//
+#pragma once
+#include "omath/engines/opengl_engine/constants.hpp"
+
+
+namespace omath::opengl_engine
+{
+    [[nodiscard]]
+    Vector3<float> ForwardVector(const ViewAngles& angles);
+
+    [[nodiscard]]
+    Vector3<float> RightVector(const ViewAngles& angles);
+
+    [[nodiscard]]
+    Vector3<float> UpVector(const ViewAngles& angles);
+
+    [[nodiscard]] Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin);
+
+
+    [[nodiscard]]
+    Mat4x4 CalcPerspectiveProjectionMatrix(float fieldOfView, float aspectRatio, float near, float far);
+} // namespace omath::opengl_engine

include/omath/engines/source_engine/camera.hpp

@@ -2,8 +2,8 @@
 // Created by Orange on 12/4/2024.
 //
 #pragma once
-#include "Constants.hpp"
-#include "omath/projection/Camera.hpp"
+#include "omath/engines/source_engine/constants.hpp"
+#include "omath/projection/camera.hpp"
 
 namespace omath::source_engine
 {

include/omath/engines/source_engine/constants.hpp

@@ -3,10 +3,10 @@
 //
 #pragma once
 
-#include <omath/Vector3.hpp>
-#include <omath/Mat.hpp>
-#include <omath/Angle.hpp>
-#include <omath/ViewAngles.hpp>
+#include <omath/vector3.hpp>
+#include <omath/mat.hpp>
+#include <omath/angle.hpp>
+#include <omath/view_angles.hpp>
 
 namespace omath::source_engine
 {

include/omath/engines/source_engine/formulas.hpp

@@ -0,0 +1,23 @@
+//
+// Created by Orange on 12/4/2024.
+//
+#pragma once
+#include "omath/engines/source_engine/constants.hpp"
+
+namespace omath::source_engine
+{
+    [[nodiscard]]
+    Vector3<float> ForwardVector(const ViewAngles& angles);
+
+    [[nodiscard]]
+    Vector3<float> RightVector(const ViewAngles& angles);
+
+    [[nodiscard]]
+    Vector3<float> UpVector(const ViewAngles& angles);
+
+    [[nodiscard]] Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin);
+
+
+    [[nodiscard]]
+    Mat4x4 CalcPerspectiveProjectionMatrix(float fieldOfView, float aspectRatio, float near, float far);
+} // namespace omath::source

include/omath/engines/unity_engine/camera.hpp

@@ -0,0 +1,21 @@
+//
+// Created by Vlad on 3/22/2025.
+//
+
+#pragma once
+#include "omath/engines/unity_engine/constants.hpp"
+#include "omath/projection/camera.hpp"
+
+namespace omath::unity_engine
+{
+    class Camera final : public projection::Camera<Mat4x4, ViewAngles>
+    {
+    public:
+        Camera(const Vector3<float>& position, const ViewAngles& viewAngles, const projection::ViewPort& viewPort,
+               const Angle<float, 0.f, 180.f, AngleFlags::Clamped>& fov, float near, float far);
+        void LookAt(const Vector3<float>& target) override;
+    protected:
+        [[nodiscard]] Mat4x4 CalcViewMatrix() const override;
+        [[nodiscard]] Mat4x4 CalcProjectionMatrix() const override;
+    };
+}

include/omath/engines/unity_engine/constants.hpp

@@ -0,0 +1,26 @@
+//
+// Created by Vlad on 3/22/2025.
+//
+
+#pragma once
+
+#include <omath/vector3.hpp>
+#include <omath/mat.hpp>
+#include <omath/angle.hpp>
+#include <omath/view_angles.hpp>
+
+namespace omath::unity_engine
+{
+    constexpr Vector3<float> kAbsUp = {0, 1, 0};
+    constexpr Vector3<float> kAbsRight = {1, 0, 0};
+    constexpr Vector3<float> kAbsForward = {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, -89.f, 89.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::source

include/omath/engines/unity_engine/formulas.hpp

@@ -0,0 +1,24 @@
+//
+// Created by Vlad on 3/22/2025.
+//
+
+#pragma once
+#include "omath/engines/unity_engine/constants.hpp"
+
+namespace omath::unity_engine
+{
+    [[nodiscard]]
+    Vector3<float> ForwardVector(const ViewAngles& angles);
+
+    [[nodiscard]]
+    Vector3<float> RightVector(const ViewAngles& angles);
+
+    [[nodiscard]]
+    Vector3<float> UpVector(const ViewAngles& angles);
+
+    [[nodiscard]] Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin);
+
+
+    [[nodiscard]]
+    Mat4x4 CalcPerspectiveProjectionMatrix(float fieldOfView, float aspectRatio, float near, float far);
+} // namespace omath::source

include/omath/mat.hpp

@@ -4,10 +4,11 @@
 #pragma once
 #include <algorithm>
 #include <array>
+#include <iomanip>
 #include <sstream>
 #include <stdexcept>
 #include <utility>
-#include "Vector3.hpp"
+#include "omath/vector3.hpp"
 
 namespace omath
 {
@@ -296,15 +297,20 @@ namespace omath
         std::string ToString() const noexcept
         {
             std::ostringstream oss;
+            oss << "[[";
+
             for (size_t i = 0; i < Rows; ++i)
             {
+                if (i > 0)
+                    oss << " [";
+
                 for (size_t j = 0; j < Columns; ++j)
                 {
-                    oss << At(i, j);
+                    oss << std::setw(9) << std::fixed << std::setprecision(3) << At(i, j);
                     if (j != Columns - 1)
-                        oss << ' ';
+                        oss << ", ";
                 }
-                oss << '\n';
+                oss << (i == Rows - 1 ? "]]" : "]\n");
             }
             return oss.str();
         }
@@ -424,4 +430,30 @@ namespace omath
     {
         return MatRotationAxisZ(angles.yaw) * MatRotationAxisY(angles.pitch) * MatRotationAxisX(angles.roll);
     }
+
+    template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
+    [[nodiscard]]
+    Mat<4, 4, Type, St> MatPerspectiveLeftHanded(const float fieldOfView, const float aspectRatio, const float near,
+                                                 const float far) noexcept
+    {
+        const float fovHalfTan = std::tan(angles::DegreesToRadians(fieldOfView) / 2.f);
+
+        return {{1.f / (aspectRatio * fovHalfTan), 0.f, 0.f, 0.f},
+                {0.f, 1.f / fovHalfTan, 0.f, 0.f},
+                {0.f, 0.f, (far + near) / (far - near), -(2.f * near * far) / (far - near)},
+                {0.f, 0.f, 1.f, 0.f}};
+    }
+
+    template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
+    [[nodiscard]]
+    Mat<4, 4, Type, St> MatPerspectiveRightHanded(const float fieldOfView, const float aspectRatio, const float near,
+                                                  const float far) noexcept
+    {
+        const float fovHalfTan = std::tan(angles::DegreesToRadians(fieldOfView) / 2.f);
+
+        return {{1.f / (aspectRatio * fovHalfTan), 0.f, 0.f, 0.f},
+                {0.f, 1.f / fovHalfTan, 0.f, 0.f},
+                {0.f, 0.f, -(far + near) / (far - near), -(2.f * near * far) / (far - near)},
+                {0.f, 0.f, -1.f, 0.f}};
+    }
 } // namespace omath

include/omath/matrix.hpp

@@ -2,7 +2,7 @@
 #include <initializer_list>
 #include <memory>
 #include <string>
-#include "Vector3.hpp"
+#include "omath/vector3.hpp"
 
 namespace omath
 {

include/omath/pathfinding/a_star.hpp

@@ -4,8 +4,8 @@
 
 #pragma once
 #include <vector>
-#include "NavigationMesh.hpp"
-#include "omath/Vector3.hpp"
+#include "omath/pathfinding/navigation_mesh.hpp"
+#include "omath/vector3.hpp"
 
 namespace omath::pathfinding
 {

include/omath/pathfinding/navigation_mesh.hpp

@@ -4,35 +4,35 @@
 
 #pragma once
 
-#include "omath/Vector3.hpp"
 #include <expected>
-#include <vector>
 #include <string>
+#include <vector>
+#include "omath/vector3.hpp"
 
 namespace omath::pathfinding
 {
 
     enum Error
     {
-        
+
     };
 
     class NavigationMesh final
     {
     public:
-
         [[nodiscard]]
         std::expected<Vector3<float>, std::string> GetClosestVertex(const Vector3<float>& point) const;
 
-
         [[nodiscard]]
         const std::vector<Vector3<float>>& GetNeighbors(const Vector3<float>& vertex) const;
 
         [[nodiscard]]
         bool Empty() const;
+
         [[nodiscard]] std::vector<uint8_t> Serialize() const;
+
         void Deserialize(const std::vector<uint8_t>& raw);
 
         std::unordered_map<Vector3<float>, std::vector<Vector3<float>>> m_verTextMap;
     };
-}
+} // namespace omath::pathfinding

include/omath/projectile_prediction/proj_pred_engine.hpp

@@ -2,9 +2,9 @@
 // Created by Vlad on 2/23/2025.
 //
 #pragma once
-#include "Projectile.hpp"
-#include "Target.hpp"
-#include "omath/Vector3.hpp"
+#include "omath/projectile_prediction/projectile.hpp"
+#include "omath/projectile_prediction/target.hpp"
+#include "omath/vector3.hpp"
 
 
 namespace omath::projectile_prediction

include/omath/projectile_prediction/proj_pred_engine_avx2.hpp

@@ -2,7 +2,7 @@
 // Created by Vlad on 2/23/2025.
 //
 #pragma once
-#include "ProjPredEngine.hpp"
+#include "omath/projectile_prediction/proj_pred_engine.hpp"
 
 namespace omath::projectile_prediction
 {

include/omath/projectile_prediction/proj_pred_engine_legacy.hpp

@@ -5,10 +5,10 @@
 #pragma once
 
 #include <optional>
-#include "omath/Vector3.hpp"
-#include "omath/projectile_prediction/ProjPredEngine.hpp"
-#include "omath/projectile_prediction/Projectile.hpp"
-#include "omath/projectile_prediction/Target.hpp"
+#include "omath/projectile_prediction/proj_pred_engine.hpp"
+#include "omath/projectile_prediction/projectile.hpp"
+#include "omath/projectile_prediction/target.hpp"
+#include "omath/vector3.hpp"
 
 
 namespace omath::projectile_prediction

include/omath/projectile_prediction/projectile.hpp

@@ -3,7 +3,7 @@
 //
 
 #pragma once
-#include "omath/Vector3.hpp"
+#include "omath/vector3.hpp"
 
 namespace omath::projectile_prediction
 {

include/omath/projectile_prediction/target.hpp

@@ -3,7 +3,7 @@
 //
 
 #pragma once
-#include "omath/Vector3.hpp"
+#include "omath/vector3.hpp"
 
 namespace omath::projectile_prediction
 {

include/omath/projection/camera.hpp

@@ -5,11 +5,11 @@
 #pragma once
 
 #include <expected>
-#include <omath/Mat.hpp>
-#include <omath/Vector3.hpp>
-#include "ErrorCodes.hpp"
-#include <omath/Angle.hpp>
+#include <omath/angle.hpp>
+#include <omath/mat.hpp>
+#include <omath/vector3.hpp>
 #include <type_traits>
+#include "omath/projection/error_codes.hpp"
 
 namespace omath::projection
 {
@@ -36,8 +36,8 @@ namespace omath::projection
             m_viewPort(viewPort), m_fieldOfView(fov), m_farPlaneDistance(far), m_nearPlaneDistance(near),
             m_viewAngles(viewAngles), m_origin(position)
         {
-
         }
+
     protected:
         virtual void LookAt(const Vector3<float>& target) = 0;
 
@@ -49,8 +49,8 @@ namespace omath::projection
         {
             return CalcProjectionMatrix() * CalcViewMatrix();
         }
-    public:
 
+    public:
         [[nodiscard]] const Mat4x4Type& GetViewProjectionMatrix() const
         {
             if (!m_viewProjectionMatrix.has_value())
@@ -116,9 +116,19 @@ namespace omath::projection
 
         [[nodiscard]] std::expected<Vector3<float>, Error> WorldToScreen(const Vector3<float>& worldPosition) const
         {
-            const auto& viewProjMatrix = GetViewProjectionMatrix();
+            auto normalizedCords = WorldToViewPort(worldPosition);
 
-            auto projected = viewProjMatrix * MatColumnFromVector<float, Mat4x4Type::GetStoreOrdering()>(worldPosition);
+            if (!normalizedCords.has_value())
+                return std::unexpected{normalizedCords.error()};
+
+
+            return NdcToScreenPosition(*normalizedCords);
+        }
+
+        [[nodiscard]] std::expected<Vector3<float>, Error> WorldToViewPort(const Vector3<float>& worldPosition) const
+        {
+            auto projected = GetViewProjectionMatrix() *
+                                   MatColumnFromVector<float, Mat4x4Type::GetStoreOrdering()>(worldPosition);
 
             if (projected.At(3, 0) == 0.0f)
                 return std::unexpected(Error::WORLD_POSITION_IS_OUT_OF_SCREEN_BOUNDS);
@@ -128,10 +138,7 @@ namespace omath::projection
             if (IsNdcOutOfBounds(projected))
                 return std::unexpected(Error::WORLD_POSITION_IS_OUT_OF_SCREEN_BOUNDS);
 
-            const auto screenPositionX = (projected.At(0,0)+1.f) / 2.f * m_viewPort.m_width;
-            const auto screenPositionY = (-projected.At(1,0)+1) / 2.f * m_viewPort.m_height;
-
-            return Vector3{screenPositionX, screenPositionY, projected.At(2,0)};
+            return Vector3<float>{projected.At(0, 0), projected.At(1, 0), projected.At(2, 0)};
         }
 
     protected:
@@ -152,7 +159,17 @@ namespace omath::projection
         [[nodiscard]]
         constexpr static bool IsNdcOutOfBounds(const Type& ndc)
         {
-            return std::ranges::any_of( ndc.RawArray(), [](const auto& val) { return val < -1 || val > 1; });
+            return std::ranges::any_of(ndc.RawArray(), [](const auto& val) { return val < -1 || val > 1; });
+        }
+
+        [[nodiscard]] Vector3<float> NdcToScreenPosition(const Vector3<float>& ndc) const
+        {
+            return
+            {
+                (ndc.x + 1.f) / 2.f * m_viewPort.m_width,
+                (1.f - ndc.y) / 2.f * m_viewPort.m_height,
+                ndc.z
+            };
         }
     };
 } // namespace omath::projection

include/omath/triangle.hpp

@@ -2,7 +2,7 @@
 // Created by Orange on 11/13/2024.
 //
 #pragma once
-#include "omath/Vector3.hpp"
+#include "omath/vector3.hpp"
 
 namespace omath
 {

include/omath/vector3.hpp

@@ -4,12 +4,11 @@
 
 #pragma once
 
-#include "Vector2.hpp"
 #include <cstdint>
 #include <expected>
 #include <functional>
-#include "omath/Angle.hpp"
-#include "omath/Vector2.hpp"
+#include "omath/angle.hpp"
+#include "omath/vector2.hpp"
 
 namespace omath
 {

include/omath/vector4.hpp

@@ -3,8 +3,8 @@
 //
 #pragma once
 
-#include <omath/Vector3.hpp>
 #include <algorithm>
+#include <omath/vector3.hpp>
 
 
 namespace omath

source/CMakeLists.txt

@@ -1,5 +1,5 @@
 target_sources(omath PRIVATE
-        Matrix.cpp
+        matrix.cpp
         color.cpp
 )
 

source/collision/CMakeLists.txt

@@ -1,3 +1,3 @@
 target_sources(omath PRIVATE
-        LineTracer.cpp
+        line_tracer.cpp
 )

source/collision/line_tracer.cpp

@@ -1,7 +1,7 @@
 //
 // Created by Orange on 11/13/2024.
 //
-#include "omath/collision/LineTracer.hpp"
+#include "omath/collision/line_tracer.hpp"
 
 namespace omath::collision
 {

source/engines/CMakeLists.txt

@@ -1,3 +1,4 @@
 add_subdirectory(source_engine)
 add_subdirectory(opengl_engine)
 add_subdirectory(iw_engine)
+add_subdirectory(unity_engine)

source/engines/iw_engine/CMakeLists.txt

@@ -1 +1 @@
-target_sources(omath PRIVATE Camera.cpp)
+target_sources(omath PRIVATE camera.cpp formulas.cpp)

source/engines/iw_engine/camera.cpp

@@ -1,8 +1,8 @@
 //
 // Created by Vlad on 3/17/2025.
 //
-#include "omath/engines/iw_engine/Camera.hpp"
-#include "omath/engines/iw_engine/Formulas.hpp"
+#include "omath/engines/iw_engine/camera.hpp"
+#include "omath/engines/iw_engine/formulas.hpp"
 
 namespace omath::iw_engine
 {

source/engines/iw_engine/formulas.cpp

@@ -0,0 +1,50 @@
+//
+// Created by Vlad on 3/19/2025.
+//
+#include "omath/engines/iw_engine/formulas.hpp"
+
+
+namespace omath::iw_engine
+{
+
+    Vector3<float> ForwardVector(const ViewAngles& angles)
+    {
+        const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsForward);
+
+        return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
+    }
+
+    Vector3<float> RightVector(const ViewAngles& angles)
+    {
+        const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsRight);
+
+        return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
+    }
+    Vector3<float> UpVector(const ViewAngles& angles)
+    {
+        const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsUp);
+
+        return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
+    }
+
+    Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin)
+    {
+        return MatCameraView(ForwardVector(angles), RightVector(angles), UpVector(angles), cam_origin);
+    }
+
+    Mat4x4 CalcPerspectiveProjectionMatrix(const float fieldOfView, const float aspectRatio, const float near,
+                                           const float far)
+    {
+        // NOTE: Need magic number to fix fov calculation, since IW engine inherit Quake proj matrix calculation
+        constexpr auto kMultiplyFactor = 0.75f;
+
+        const float fovHalfTan = std::tan(angles::DegreesToRadians(fieldOfView) / 2.f) * kMultiplyFactor;
+
+        return {
+                {1.f / (aspectRatio * fovHalfTan), 0, 0, 0},
+                {0, 1.f / (fovHalfTan), 0, 0},
+                {0, 0, (far + near) / (far - near), -(2.f * far * near) / (far - near)},
+                {0, 0, 1, 0},
+        };
+    };
+} // namespace omath::iw_engine

source/engines/opengl_engine/CMakeLists.txt

@@ -1 +1 @@
-target_sources(omath PRIVATE Camera.cpp)
+target_sources(omath PRIVATE camera.cpp formulas.cpp)

source/engines/opengl_engine/camera.cpp

@@ -1,8 +1,8 @@
 //
 // Created by Orange on 12/23/2024.
 //
-#include "omath/engines/opengl_engine/Camera.hpp"
-#include "omath/engines/opengl_engine/Formulas.hpp"
+#include "omath/engines/opengl_engine/camera.hpp"
+#include "omath/engines/opengl_engine/formulas.hpp"
 
 
 namespace omath::opengl_engine

source/engines/opengl_engine/formulas.cpp

@@ -0,0 +1,45 @@
+//
+// Created by Vlad on 3/19/2025.
+//
+#include "omath/engines/opengl_engine/formulas.hpp"
+
+
+namespace omath::opengl_engine
+{
+
+    Vector3<float> ForwardVector(const ViewAngles& angles)
+    {
+        const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsForward);
+
+        return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
+    }
+    Vector3<float> RightVector(const ViewAngles& angles)
+    {
+        const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsRight);
+
+        return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
+    }
+    Vector3<float> UpVector(const ViewAngles& angles)
+    {
+        const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsUp);
+
+        return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
+    }
+    Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin)
+    {
+        return MatCameraView<float, MatStoreType::COLUMN_MAJOR>(-ForwardVector(angles), RightVector(angles),
+                                                                UpVector(angles), cam_origin);
+    }
+    Mat4x4 CalcPerspectiveProjectionMatrix(const float fieldOfView, const float aspectRatio, const float near,
+                                           const float far)
+    {
+        const float fovHalfTan = std::tan(angles::DegreesToRadians(fieldOfView) / 2.f);
+
+        return {
+                {1.f / (aspectRatio * fovHalfTan), 0, 0, 0},
+                {0, 1.f / (fovHalfTan), 0, 0},
+                {0, 0, -(far + near) / (far - near), -(2.f * far * near) / (far - near)},
+                {0, 0, -1, 0},
+        };
+    }
+} // namespace omath::opengl_engine

source/engines/source_engine/CMakeLists.txt

@@ -1 +1 @@
-target_sources(omath PRIVATE Camera.cpp)
+target_sources(omath PRIVATE camera.cpp formulas.cpp)

source/engines/source_engine/camera.cpp

@@ -1,8 +1,8 @@
 //
 // Created by Orange on 12/4/2024.
 //
-#include "omath/engines/source_engine/Camera.hpp"
-#include "omath/engines/source_engine/Formulas.hpp"
+#include "omath/engines/source_engine/camera.hpp"
+#include "omath/engines/source_engine/formulas.hpp"
 
 
 namespace omath::source_engine

source/engines/source_engine/formulas.cpp

@@ -1,44 +1,38 @@
 //
-// Created by Orange on 12/4/2024.
+// Created by Vlad on 3/19/2025.
 //
-#pragma once
-#include "Constants.hpp"
+#include <omath/engines/source_engine/formulas.hpp>
+
 
 namespace omath::source_engine
 {
-    [[nodiscard]]
-    inline Vector3<float> ForwardVector(const ViewAngles& angles)
+    Vector3<float> ForwardVector(const ViewAngles& angles)
     {
         const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsForward);
 
         return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
     }
 
-    [[nodiscard]]
-    inline Vector3<float> RightVector(const ViewAngles& angles)
+    Vector3<float> RightVector(const ViewAngles& angles)
     {
         const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsRight);
 
         return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
     }
-
-    [[nodiscard]]
-    inline Vector3<float> UpVector(const ViewAngles& angles)
+    Vector3<float> UpVector(const ViewAngles& angles)
     {
         const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsUp);
 
         return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
     }
 
-    [[nodiscard]] inline Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin)
+    Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin)
     {
         return MatCameraView(ForwardVector(angles), RightVector(angles), UpVector(angles), cam_origin);
     }
 
-
-    [[nodiscard]]
-    inline Mat4x4 CalcPerspectiveProjectionMatrix(const float fieldOfView, const float aspectRatio, const float near,
-                                                  const float far)
+    Mat4x4 CalcPerspectiveProjectionMatrix(const float fieldOfView, const float aspectRatio, const float near,
+                                           const float far)
     {
         // NOTE: Need magic number to fix fov calculation, since source inherit Quake proj matrix calculation
         constexpr auto kMultiplyFactor = 0.75f;
@@ -50,7 +44,6 @@ namespace omath::source_engine
                 {0, 1.f / (fovHalfTan), 0, 0},
                 {0, 0, (far + near) / (far - near), -(2.f * far * near) / (far - near)},
                 {0, 0, 1, 0},
-
         };
     }
-} // namespace omath::source
+} // namespace omath::source_engine

source/engines/unity_engine/CMakeLists.txt

@@ -0,0 +1 @@
+target_sources(omath PRIVATE formulas.cpp camera.cpp)

source/engines/unity_engine/camera.cpp

@@ -0,0 +1,28 @@
+//
+// Created by Vlad on 3/22/2025.
+//
+#include <omath/engines/unity_engine/camera.hpp>
+#include <omath/engines/unity_engine/formulas.hpp>
+
+
+namespace omath::unity_engine
+{
+    Camera::Camera(const Vector3<float>& position, const ViewAngles& viewAngles, const projection::ViewPort& viewPort,
+                   const projection::FieldOfView& fov, const float near, const float far) :
+        projection::Camera<Mat4x4, ViewAngles>(position, viewAngles, viewPort, fov, near, far)
+    {
+    }
+    void Camera::LookAt([[maybe_unused]] const Vector3<float>& target)
+    {
+        throw std::runtime_error("Not implemented");
+    }
+    Mat4x4 Camera::CalcViewMatrix() const
+    {
+        return unity_engine::CalcViewMatrix(m_viewAngles, m_origin);
+    }
+    Mat4x4 Camera::CalcProjectionMatrix() const
+    {
+        return CalcPerspectiveProjectionMatrix(m_fieldOfView.AsDegrees(), m_viewPort.AspectRatio(), m_nearPlaneDistance,
+                                               m_farPlaneDistance);
+    }
+} // namespace omath::unity_engine

source/engines/unity_engine/formulas.cpp

@@ -0,0 +1,45 @@
+//
+// Created by Vlad on 3/22/2025.
+//
+#include "omath/engines/unity_engine/formulas.hpp"
+
+
+
+namespace omath::unity_engine
+{
+    Vector3<float> unity_engine::ForwardVector(const ViewAngles& angles)
+    {
+        const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsForward);
+
+        return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
+    }
+    Vector3<float> RightVector(const ViewAngles& angles)
+    {
+        const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsRight);
+
+        return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
+    }
+    Vector3<float> UpVector(const ViewAngles& angles)
+    {
+        const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsUp);
+
+        return {vec.At(0, 0), vec.At(1, 0), vec.At(2, 0)};
+    }
+    Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin)
+    {
+        return MatCameraView<float, MatStoreType::ROW_MAJOR>(ForwardVector(angles), RightVector(angles),
+                                                             UpVector(angles), cam_origin);
+    }
+    Mat4x4 CalcPerspectiveProjectionMatrix(const float fieldOfView, const float aspectRatio, const float near,
+                                           const float far)
+    {
+        const float fovHalfTan = std::tan(angles::DegreesToRadians(fieldOfView) / 2.f);
+
+        return {
+                {1.f / (aspectRatio * fovHalfTan), 0, 0, 0},
+                {0, 1.f / (fovHalfTan), 0, 0},
+                {0, 0, (far + near) / (far - near), -(2.f * far * near) / (far - near)},
+                {0, 0, -1.f, 0},
+        };
+    }
+} // namespace omath::unity_engine

source/pathfinding/CMakeLists.txt

@@ -1 +1 @@
-target_sources(omath PRIVATE NavigationMesh.cpp Astar.cpp)
+target_sources(omath PRIVATE navigation_mesh.cpp a_star.cpp)

source/pathfinding/a_star.cpp

@@ -1,7 +1,7 @@
 //
 // Created by Vlad on 28.07.2024.
 //
-#include "omath/pathfinding/Astar.hpp"
+#include "omath/pathfinding/a_star.hpp"
 
 #include <algorithm>
 #include <optional>

source/pathfinding/navigation_mesh.cpp

@@ -1,10 +1,10 @@
 //
 // Created by Vlad on 28.07.2024.
 //
-#include "omath/pathfinding/NavigationMesh.hpp"
+#include "omath/pathfinding/navigation_mesh.hpp"
 
-#include <stdexcept>
 #include <algorithm>
+#include <stdexcept>
 namespace omath::pathfinding
 {
     std::expected<Vector3<float>, std::string> NavigationMesh::GetClosestVertex(const Vector3<float> &point) const

source/projectile_prediction/CMakeLists.txt

@@ -1 +1 @@
-target_sources(omath PRIVATE ProjPredEngineLegacy.cpp Projectile.cpp Target.cpp ProjPredEngineAVX2.cpp ProjPredEngine.cpp)
+target_sources(omath PRIVATE proj_pred_engine_legacy.cpp projectile.cpp target.cpp proj_pred_engine_avx2.cpp proj_pred_engine.cpp)

source/projectile_prediction/proj_pred_engine.cpp

@@ -1,7 +1,7 @@
 //
 // Created by Vlad on 2/23/2025.
 //
-#include "omath/projectile_prediction/ProjPredEngine.hpp"
+#include "omath/projectile_prediction/proj_pred_engine.hpp"
 
 
 namespace omath::projectile_prediction

source/projectile_prediction/proj_pred_engine_avx2.cpp

@@ -1,7 +1,7 @@
 //
 // Created by Vlad on 2/23/2025.
 //
-#include "omath/projectile_prediction/ProjPredEngineAVX2.hpp"
+#include "omath/projectile_prediction/proj_pred_engine_avx2.hpp"
 #include "source_location"
 
 namespace omath::projectile_prediction

source/projectile_prediction/proj_pred_engine_legacy.cpp

@@ -1,6 +1,6 @@
-#include "omath/projectile_prediction/ProjPredEngineLegacy.hpp"
+#include "omath/projectile_prediction/proj_pred_engine_legacy.hpp"
 #include <cmath>
-#include <omath/Angles.hpp>
+#include <omath/angles.hpp>
 
 namespace omath::projectile_prediction
 {

source/projectile_prediction/projectile.cpp

@@ -2,9 +2,9 @@
 // Created by Vlad on 6/9/2024.
 //
 
-#include "omath/projectile_prediction/Projectile.hpp"
+#include "omath/projectile_prediction/projectile.hpp"
 
-#include <omath/engines/source_engine/Formulas.hpp>
+#include <omath/engines/source_engine/formulas.hpp>
 
 namespace omath::projectile_prediction
 {

source/projectile_prediction/target.cpp

@@ -2,7 +2,7 @@
 // Created by Vlad on 6/9/2024.
 //
 
-#include "omath/projectile_prediction/Projectile.hpp"
+#include "omath/projectile_prediction/projectile.hpp"
 
 
 namespace omath::prediction

source/projection/CMakeLists.txt

@@ -1 +1 @@
-target_sources(omath PRIVATE Camera.cpp)
+target_sources(omath PRIVATE camera.cpp)

source/projection/camera.cpp

@@ -1,7 +1,7 @@
 //
 // Created by Vlad on 27.08.2024.
 //
-#include "omath/projection/Camera.hpp"
+#include "omath/projection/camera.hpp"
 
 
 namespace omath::projection

tests/CMakeLists.txt

@@ -4,25 +4,25 @@ project(unit-tests)
 
 include(GoogleTest)
 add_executable(unit-tests
-        general/UnitTestPrediction.cpp
-        general/UnitTestMatrix.cpp
-        general/UnitTestMat.cpp
-        general/UnitTestAstar.cpp
-        general/UnitTestProjection.cpp
-        general/UnitTestVector3.cpp
-        general/UnitTestVector2.cpp
-        general/UnitTestColor.cpp
-        general/UnitTestVector4.cpp
-        general/UnitTestLineTrace.cpp
-        general/UnitTestAngles.cpp
-        general/UnitTestViewAngles.cpp
-        general/UnitTestAngle.cpp
-        general/UnitTestTriangle.cpp
+        general/unit_test_prediction.cpp
+        general/unit_test_matrix.cpp
+        general/unit_test_mat.cpp
+        general/unit_test_a_star.cpp
+        general/unit_test_projection.cpp
+        general/unit_test_vector3.cpp
+        general/unit_test_vector2.cpp
+        general/unit_test_color.cpp
+        general/unit_test_vector4.cpp
+        general/unit_test_line_trace.cpp
+        general/unit_test_angles.cpp
+        general/unit_test_view_angles.cpp
+        general/unit_test_angle.cpp
+        general/unit_test_triangle.cpp
 
-        engines/UnitTestOpenGL.cpp
-        engines/UnitTestUnityEngine.cpp
-        engines/UnitTestSourceEngine.cpp
-        engines/UnitTestIwEngine.cpp
+        engines/unit_test_open_gl.cpp
+        engines/unit_test_unity_engine.cpp
+        engines/unit_test_source_engine.cpp
+        engines/unit_test_iw_engine.cpp
 
 )
 
@@ -35,6 +35,6 @@ set_target_properties(unit-tests PROPERTIES
         CXX_STANDARD_REQUIRED ON)
 
 
-target_link_libraries(unit-tests PRIVATE gtest gtest_main omath)
+target_link_libraries(unit-tests PRIVATE gtest gtest_main omath::omath)
 
 gtest_discover_tests(unit-tests)

tests/engines/UnitTestIwEngine.cpp

@@ -1,69 +0,0 @@
-//
-// Created by Vlad on 3/17/2025.
-//
-#include <gtest/gtest.h>
-#include <omath/engines/iw_engine/Camera.hpp>
-#include <omath/engines/iw_engine/Constants.hpp>
-#include <omath/engines/iw_engine/Formulas.hpp>
-
-
-TEST(UnitTestEwEngine, ForwardVector)
-{
-    const auto forward = omath::source_engine::ForwardVector({});
-
-    EXPECT_EQ(forward, omath::source_engine::kAbsForward);
-}
-
-TEST(UnitTestEwEngine, RightVector)
-{
-    const auto right = omath::source_engine::RightVector({});
-
-    EXPECT_EQ(right, omath::source_engine::kAbsRight);
-}
-
-TEST(UnitTestEwEngine, UpVector)
-{
-    const auto up = omath::source_engine::UpVector({});
-    EXPECT_EQ(up, omath::source_engine::kAbsUp);
-}
-
-TEST(UnitTestEwEngine, ProjectTargetMovedFromCamera)
-{
-    constexpr auto fov = omath::projection::FieldOfView::FromDegrees(90.f);
-    const auto cam = omath::source_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.01f, 1000.f);
-
-
-    for (float distance = 0.02f; distance < 1000.f; distance += 0.01f)
-    {
-        const auto projected = cam.WorldToScreen({distance, 0, 0});
-
-        EXPECT_TRUE(projected.has_value());
-
-        if (!projected.has_value())
-            continue;
-
-        EXPECT_NEAR(projected->x, 960, 0.00001f);
-        EXPECT_NEAR(projected->y, 540, 0.00001f);
-    }
-}
-
-TEST(UnitTestEwEngine, CameraSetAndGetFov)
-{
-    constexpr auto fov = omath::projection::FieldOfView::FromDegrees(90.f);
-    auto cam = omath::source_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.01f, 1000.f);
-
-    EXPECT_EQ(cam.GetFieldOfView().AsDegrees(), 90.f);
-    cam.SetFieldOfView(omath::projection::FieldOfView::FromDegrees(50.f));
-
-    EXPECT_EQ(cam.GetFieldOfView().AsDegrees(), 50.f);
-}
-
-TEST(UnitTestEwEngine, CameraSetAndGetOrigin)
-{
-    auto cam = omath::source_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, {}, 0.01f, 1000.f);
-
-    EXPECT_EQ(cam.GetOrigin(), omath::Vector3<float>{});
-    cam.SetFieldOfView(omath::projection::FieldOfView::FromDegrees(50.f));
-
-    EXPECT_EQ(cam.GetFieldOfView().AsDegrees(), 50.f);
-}

tests/engines/UnitTestUnityEngine.cpp

@@ -1,3 +0,0 @@
-//
-// Created by Orange on 11/27/2024.
-//

tests/engines/unit_test_iw_engine.cpp

@@ -0,0 +1,69 @@
+//
+// Created by Vlad on 3/17/2025.
+//
+#include <gtest/gtest.h>
+#include <omath/engines/iw_engine/camera.hpp>
+#include <omath/engines/iw_engine/constants.hpp>
+#include <omath/engines/iw_engine/formulas.hpp>
+
+
+TEST(UnitTestIwEngine, ForwardVector)
+{
+    const auto forward = omath::iw_engine::ForwardVector({});
+
+    EXPECT_EQ(forward, omath::iw_engine::kAbsForward);
+}
+
+TEST(UnitTestIwEngine, RightVector)
+{
+    const auto right = omath::iw_engine::RightVector({});
+
+    EXPECT_EQ(right, omath::iw_engine::kAbsRight);
+}
+
+TEST(UnitTestIwEngine, UpVector)
+{
+    const auto up = omath::iw_engine::UpVector({});
+    EXPECT_EQ(up, omath::iw_engine::kAbsUp);
+}
+
+TEST(UnitTestIwEngine, ProjectTargetMovedFromCamera)
+{
+    constexpr auto fov = omath::projection::FieldOfView::FromDegrees(90.f);
+    const auto cam = omath::iw_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.01f, 1000.f);
+
+
+    for (float distance = 0.02f; distance < 1000.f; distance += 0.01f)
+    {
+        const auto projected = cam.WorldToScreen({distance, 0, 0});
+
+        EXPECT_TRUE(projected.has_value());
+
+        if (!projected.has_value())
+            continue;
+
+        EXPECT_NEAR(projected->x, 960, 0.00001f);
+        EXPECT_NEAR(projected->y, 540, 0.00001f);
+    }
+}
+
+TEST(UnitTestIwEngine, CameraSetAndGetFov)
+{
+    constexpr auto fov = omath::projection::FieldOfView::FromDegrees(90.f);
+    auto cam = omath::iw_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.01f, 1000.f);
+
+    EXPECT_EQ(cam.GetFieldOfView().AsDegrees(), 90.f);
+    cam.SetFieldOfView(omath::projection::FieldOfView::FromDegrees(50.f));
+
+    EXPECT_EQ(cam.GetFieldOfView().AsDegrees(), 50.f);
+}
+
+TEST(UnitTestIwEngine, CameraSetAndGetOrigin)
+{
+    auto cam = omath::iw_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, {}, 0.01f, 1000.f);
+
+    EXPECT_EQ(cam.GetOrigin(), omath::Vector3<float>{});
+    cam.SetFieldOfView(omath::projection::FieldOfView::FromDegrees(50.f));
+
+    EXPECT_EQ(cam.GetFieldOfView().AsDegrees(), 50.f);
+}

tests/engines/unit_test_open_gl.cpp

@@ -2,9 +2,9 @@
 // Created by Orange on 11/23/2024.
 //
 #include <gtest/gtest.h>
-#include <omath/engines/opengl_engine//Camera.hpp>
-#include <omath/engines/opengl_engine/Constants.hpp>
-#include <omath/engines/opengl_engine/Formulas.hpp>
+#include <omath/engines/opengl_engine/camera.hpp>
+#include <omath/engines/opengl_engine/constants.hpp>
+#include <omath/engines/opengl_engine/formulas.hpp>
 
 
 TEST(UnitTestOpenGL, ForwardVector)

tests/engines/unit_test_source_engine.cpp

@@ -2,9 +2,9 @@
 // Created by Orange on 11/23/2024.
 //
 #include <gtest/gtest.h>
-#include <omath/engines/source_engine/Camera.hpp>
-#include <omath/engines/source_engine/Constants.hpp>
-#include <omath/engines/source_engine/Formulas.hpp>
+#include <omath/engines/source_engine/camera.hpp>
+#include <omath/engines/source_engine/constants.hpp>
+#include <omath/engines/source_engine/formulas.hpp>
 
 
 TEST(UnitTestSourceEngine, ForwardVector)
@@ -47,6 +47,26 @@ TEST(UnitTestSourceEngine, ProjectTargetMovedFromCamera)
     }
 }
 
+TEST(UnitTestSourceEngine, ProjectTargetMovedUp)
+{
+    constexpr auto fov = omath::projection::FieldOfView::FromDegrees(90.f);
+    const auto cam = omath::source_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.01f, 1000.f);
+
+    auto prev = 1080.f;
+    for (float distance = 0.0f; distance < 10.f; distance += 1.f)
+    {
+        const auto projected = cam.WorldToScreen({100.f, 0, distance});
+        EXPECT_TRUE(projected.has_value());
+
+        if (!projected.has_value())
+            continue;
+
+        EXPECT_TRUE(projected->y < prev);
+
+        prev = projected->y;
+    }
+}
+
 TEST(UnitTestSourceEngine, CameraSetAndGetFov)
 {
     constexpr auto fov = omath::projection::FieldOfView::FromDegrees(90.f);

tests/engines/unit_test_unity_engine.cpp

@@ -0,0 +1,76 @@
+//
+// Created by Orange on 11/27/2024.
+//
+#include <gtest/gtest.h>
+#include <omath/engines/unity_engine/camera.hpp>
+#include <omath/engines/unity_engine/constants.hpp>
+#include <omath/engines/unity_engine/formulas.hpp>
+
+
+TEST(UnitTestUnityEngine, ForwardVector)
+{
+    const auto forward = omath::unity_engine::ForwardVector({});
+
+    EXPECT_EQ(forward, omath::unity_engine::kAbsForward);
+}
+
+TEST(UnitTestUnityEngine, RightVector)
+{
+    const auto right = omath::unity_engine::RightVector({});
+
+    EXPECT_EQ(right, omath::unity_engine::kAbsRight);
+}
+
+TEST(UnitTestUnityEngine, UpVector)
+{
+    const auto up = omath::unity_engine::UpVector({});
+    EXPECT_EQ(up, omath::unity_engine::kAbsUp);
+}
+
+TEST(UnitTestUnityEngine, ProjectTargetMovedFromCamera)
+{
+    constexpr auto fov = omath::projection::FieldOfView::FromDegrees(60.f);
+    const auto cam = omath::unity_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.WorldToScreen({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(UnitTestUnityEngine, Project)
+{
+    constexpr auto fov = omath::projection::FieldOfView::FromDegrees(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.WorldToScreen({0.f, 2.f, 10.f});
+}
+
+TEST(UnitTestUnityEngine, CameraSetAndGetFov)
+{
+    constexpr auto fov = omath::projection::FieldOfView::FromDegrees(90.f);
+    auto cam = omath::unity_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.01f, 1000.f);
+
+    EXPECT_EQ(cam.GetFieldOfView().AsDegrees(), 90.f);
+    cam.SetFieldOfView(omath::projection::FieldOfView::FromDegrees(50.f));
+
+    EXPECT_EQ(cam.GetFieldOfView().AsDegrees(), 50.f);
+}
+
+TEST(UnitTestUnityEngine, CameraSetAndGetOrigin)
+{
+    auto cam = omath::unity_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, {}, 0.01f, 1000.f);
+
+    EXPECT_EQ(cam.GetOrigin(), omath::Vector3<float>{});
+    cam.SetFieldOfView(omath::projection::FieldOfView::FromDegrees(50.f));
+
+    EXPECT_EQ(cam.GetFieldOfView().AsDegrees(), 50.f);
+}

tests/general/unit_test_a_star.cpp

@@ -2,7 +2,7 @@
 // Created by Vlad on 18.08.2024.
 //
 #include <gtest/gtest.h>
-#include <omath/pathfinding/Astar.hpp>
+#include <omath/pathfinding/a_star.hpp>
 
 
 TEST(UnitTestAstar, FindingRightPath)

tests/general/unit_test_angles.cpp

@@ -2,8 +2,7 @@
 // Created by Orange on 11/30/2024.
 //
 #include <gtest/gtest.h>
-#include <omath/Angles.hpp>
-#include <omath/Angle.hpp>
+#include <omath/angles.hpp>
 
 TEST(UnitTestAngles, RadiansToDeg)
 {

tests/general/unit_test_color.cpp

@@ -2,7 +2,7 @@
 // Created by Vlad on 01.09.2024.
 //
 #include <gtest/gtest.h>
-#include <omath/Color.hpp>
+#include <omath/color.hpp>
 
 
 using namespace omath;

tests/general/unit_test_line_trace.cpp

@@ -1,7 +1,7 @@
 #include "gtest/gtest.h"
-#include "omath/collision/LineTracer.hpp"
-#include "omath/Triangle.hpp"
-#include "omath/Vector3.hpp"
+#include "omath/collision/line_tracer.hpp"
+#include "omath/triangle.hpp"
+#include "omath/vector3.hpp"
 
 using namespace omath;
 using namespace omath::collision;

tests/general/unit_test_mat.cpp

@@ -1,7 +1,7 @@
 // UnitTestMat.cpp
 #include <gtest/gtest.h>
-#include "omath/Mat.hpp"
-#include "omath/Vector3.hpp"
+#include "omath/mat.hpp"
+#include "omath/vector3.hpp"
 
 using namespace omath;
 
@@ -127,7 +127,7 @@ TEST_F(UnitTestMat, ToString)
 {
     const std::string str = m2.ToString();
     EXPECT_FALSE(str.empty());
-    EXPECT_EQ(str, "1 2\n3 4\n");
+    EXPECT_EQ(str, "[[    1.000,     2.000]\n [    3.000,     4.000]]");
 }
 
 // Test assignment operators

tests/general/unit_test_matrix.cpp

@@ -2,8 +2,8 @@
 // Created by vlad on 5/18/2024.
 //
 #include <gtest/gtest.h>
-#include <omath/Matrix.hpp>
-#include "omath/Vector3.hpp"
+#include <omath/matrix.hpp>
+#include "omath/vector3.hpp"
 
 using namespace omath;
 

tests/general/unit_test_prediction.cpp

@@ -1,5 +1,5 @@
 #include <gtest/gtest.h>
-#include <omath/projectile_prediction/ProjPredEngineLegacy.hpp>
+#include <omath/projectile_prediction/proj_pred_engine_legacy.hpp>
 
 TEST(UnitTestPrediction, PredictionTest)
 {

tests/general/unit_test_projection.cpp

@@ -3,8 +3,8 @@
 //
 #include <complex>
 #include <gtest/gtest.h>
-#include <omath/engines/source_engine/Camera.hpp>
-#include <omath/projection/Camera.hpp>
+#include <omath/engines/source_engine/camera.hpp>
+#include <omath/projection/camera.hpp>
 #include <print>
 
 TEST(UnitTestProjection, Projection)

tests/general/unit_test_triangle.cpp

@@ -1,10 +1,10 @@
 //
 // Created by Orange on 1/6/2025.
 //
-#include "omath/Triangle.hpp"
+#include <cmath> // For std::sqrt, std::isinf, std::isnan
 #include <gtest/gtest.h>
-#include <omath/Vector3.hpp>
-#include <cmath>  // For std::sqrt, std::isinf, std::isnan
+#include <omath/vector3.hpp>
+#include "omath/triangle.hpp"
 
 
 using namespace omath;

tests/general/unit_test_vector2.cpp

@@ -2,10 +2,10 @@
 // Created by Vlad on 02.09.2024.
 //
 
-#include <gtest/gtest.h>
-#include <omath/Vector2.hpp>
-#include <cmath> // For std::isinf and std::isnan
 #include <cfloat> // For FLT_MAX and FLT_MIN
+#include <cmath> // For std::isinf and std::isnan
+#include <gtest/gtest.h>
+#include <omath/vector2.hpp>
 
 using namespace omath;
 

tests/general/unit_test_vector3.cpp

@@ -2,11 +2,11 @@
 // Created by Vlad on 01.09.2024.
 //
 
-#include <gtest/gtest.h>
-#include <omath/Vector3.hpp>
-#include <cmath>
 #include <cfloat> // For FLT_MAX, FLT_MIN
+#include <cmath>
+#include <gtest/gtest.h>
 #include <limits> // For std::numeric_limits
+#include <omath/vector3.hpp>
 
 using namespace omath;
 

tests/general/unit_test_vector4.cpp

@@ -6,8 +6,8 @@
 //
 
 #include <gtest/gtest.h>
-#include <omath/Vector4.hpp>
 #include <limits> // For std::numeric_limits
+#include <omath/vector4.hpp>
 
 using namespace omath;
 

tests/general/unit_test_view_angles.cpp

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