updated read me

U/orange cpp/imrpoved color

.gitignore

@@ -1,3 +1,4 @@
 /cmake-build/
 /.idea
 /out
+*.DS_Store

CMakeLists.txt

@@ -5,23 +5,40 @@ project(omath VERSION 1.0.1 LANGUAGES CXX)
 include(CMakePackageConfigHelpers)
 
 
-option(OMATH_BUILD_TESTS "Build unit tests" OFF)
+option(OMATH_BUILD_TESTS "Build unit tests" ON)
 option(OMATH_THREAT_WARNING_AS_ERROR "Set highest level of warnings and force compiler to treat them as errors" ON)
 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)
+option(OMATH_STATIC_MSVC_RUNTIME_LIBRARY  "Force Omath to link static runtime" OFF)
 
 if (OMATH_BUILD_AS_SHARED_LIBRARY)
-    add_library(omath SHARED source/Matrix.cpp)
+    add_library(omath SHARED source/matrix.cpp)
 else()
-    add_library(omath STATIC source/Matrix.cpp)
+    add_library(omath STATIC source/matrix.cpp
+            source/matrix.cpp)
 endif()
-
+message(STATUS "Building on ${CMAKE_HOST_SYSTEM_NAME}")
 add_library(omath::omath ALIAS omath)
 
 if (OMATH_IMGUI_INTEGRATION)
     target_compile_definitions(omath PUBLIC OMATH_IMGUI_INTEGRATION)
+
+    # IMGUI is being linked as submodule
+    if(TARGET imgui)
+        target_link_libraries(omath PUBLIC imgui)
+        install(TARGETS imgui
+                EXPORT omathTargets
+                ARCHIVE DESTINATION lib
+                LIBRARY DESTINATION lib
+                RUNTIME DESTINATION bin)
+    else()
+        # Assume that IMGUI linked via VCPKG.
+        find_package(imgui CONFIG REQUIRED)
+        target_link_libraries(omath PUBLIC imgui::imgui)
+    endif()
+
 endif()
 
 if (OMATH_USE_AVX2)
@@ -36,6 +53,12 @@ set_target_properties(omath PROPERTIES
         CXX_STANDARD 23
         CXX_STANDARD_REQUIRED ON)
 
+if (OMATH_STATIC_MSVC_RUNTIME_LIBRARY)
+    set_target_properties(omath PROPERTIES
+            MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>"
+    )
+endif()
+
 if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
     target_compile_options(omath PRIVATE -mavx2 -mfma)
 endif()

CMakePresets.json

@@ -64,6 +64,38 @@
       "cacheVariables": {
         "CMAKE_BUILD_TYPE": "Release"
       }
+    },
+    {
+      "name": "darwin-base",
+      "hidden": true,
+      "generator": "Ninja",
+      "binaryDir": "${sourceDir}/cmake-build/build/${presetName}",
+      "installDir": "${sourceDir}/cmake-build/install/${presetName}",
+      "cacheVariables": {
+        "CMAKE_C_COMPILER": "clang",
+        "CMAKE_CXX_COMPILER": "clang++"
+      },
+      "condition": {
+        "type": "equals",
+        "lhs": "${hostSystemName}",
+        "rhs": "Darwin"
+      }
+    },
+    {
+      "name": "darwin-debug",
+      "displayName": "Darwin Debug",
+      "inherits": "darwin-base",
+      "cacheVariables": {
+        "CMAKE_BUILD_TYPE": "Debug"
+      }
+    },
+    {
+      "name": "darwin-release",
+      "displayName": "Darwin Release",
+      "inherits": "darwin-debug",
+      "cacheVariables": {
+        "CMAKE_BUILD_TYPE": "Release"
+      }
     }
   ]
 }

README.md

@@ -20,6 +20,23 @@ Oranges's Math Library (omath) is a comprehensive, open-source library aimed at
 - **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!
+
+## Supported Render Pipelines
+| ENGINE   | SUPPORT |
+|----------|---------|
+| Source   | ✅YES    |
+| Unity    | ✅YES    |
+| IWEngine | ✅YES    |
+| Unreal   | ❌NO     |
+
+## Supported Operating Systems
+
+| OS             | SUPPORT |
+|----------------|---------|
+| Windows 10/11  | ✅YES    |
+| Linux          | ✅YES    |
+| Darwin (MacOS) | ✅YES    |
+
 ## ⏬ Getting Started
 ### Prerequisites
 - C++ Compiler

include/omath/color.hpp

@@ -8,13 +8,22 @@
 #include "omath/vector3.hpp"
 #include "omath/vector4.hpp"
 
+#ifdef max
+#undef max
+#endif
+
+
+#ifdef min
+#undef min
+#endif
+
 namespace omath
 {
     struct HSV
     {
-        float m_hue{};
+        float hue{};
-        float m_saturation{};
+        float saturation{};
-        float m_value{};
+        float value{};
     };
 
 
@@ -26,18 +35,15 @@ namespace omath
             Clamp(0.f, 1.f);
         }
 
-            constexpr explicit Color() : Vector4()
+        constexpr explicit Color() = default;
-            {
-
-            }
         [[nodiscard]]
-            constexpr static Color FromRGBA(uint8_t r, uint8_t g, uint8_t b, uint8_t a)
+        constexpr static Color FromRGBA(const uint8_t r, const uint8_t g, const uint8_t b, const uint8_t a)
         {
             return Color{Vector4(r, g, b, a) / 255.f};
         }
 
         [[nodiscard]]
-            constexpr static Color FromHSV(float hue, float saturation, float value)
+        constexpr static Color FromHSV(float hue, const float saturation, const float value)
         {
             float r{}, g{}, b{};
 
@@ -51,19 +57,38 @@ namespace omath
 
             switch (i % 6)
             {
-                    case 0: r = value, g = t, b = p; break;
+                case 0:
-                    case 1: r = q, g = value, b = p; break;
+                    r = value, g = t, b = p;
-                    case 2: r = p, g = value, b = t; break;
+                    break;
-                    case 3: r = p, g = q, b = value; break;
+                case 1:
-                    case 4: r = t, g = p, b = value; break;
+                    r = q, g = value, b = p;
-                    case 5: r = value, g = p, b = q; break;
+                    break;
+                case 2:
+                    r = p, g = value, b = t;
+                    break;
+                case 3:
+                    r = p, g = q, b = value;
+                    break;
+                case 4:
+                    r = t, g = p, b = value;
+                    break;
+                case 5:
+                    r = value, g = p, b = q;
+                    break;
 
-                    default: return {0.f, 0.f, 0.f, 0.f};
+                default:
+                    return {0.f, 0.f, 0.f, 0.f};
             }
 
             return {r, g, b, 1.f};
         }
 
+        [[nodiscard]]
+        constexpr static Color FromHSV(const HSV& hsv)
+        {
+            return FromHSV(hsv.hue, hsv.saturation, hsv.value);
+        }
+
         [[nodiscard]]
         constexpr HSV ToHSV() const
         {
@@ -79,21 +104,21 @@ namespace omath
 
 
             if (delta == 0.f)
-                    hsvData.m_hue = 0.f;
+                hsvData.hue = 0.f;
 
             else if (max == red)
-                    hsvData.m_hue = 60.f * (std::fmodf(((green - blue) / delta), 6.f));
+                hsvData.hue = 60.f * (std::fmodf(((green - blue) / delta), 6.f));
             else if (max == green)
-                    hsvData.m_hue = 60.f * (((blue - red) / delta) + 2.f);
+                hsvData.hue = 60.f * (((blue - red) / delta) + 2.f);
             else if (max == blue)
-                    hsvData.m_hue = 60.f * (((red - green) / delta) + 4.f);
+                hsvData.hue = 60.f * (((red - green) / delta) + 4.f);
 
-                if (hsvData.m_hue < 0.f)
+            if (hsvData.hue < 0.f)
-                    hsvData.m_hue += 360.f;
+                hsvData.hue += 360.f;
 
-                hsvData.m_hue /= 360.f;
+            hsvData.hue /= 360.f;
-                hsvData.m_saturation = max == 0.f ? 0.f : delta / max;
+            hsvData.saturation = max == 0.f ? 0.f : delta / max;
-                hsvData.m_value = max;
+            hsvData.value = max;
 
             return hsvData;
         }
@@ -102,21 +127,47 @@ namespace omath
         {
             Clamp(0.f, 1.f);
         }
+        constexpr void SetHue(const float hue)
+        {
+            auto hsv = ToHSV();
+            hsv.hue = hue;
 
+            *this = FromHSV(hsv);
+        }
+
+        constexpr void SetSaturation(const float saturation)
+        {
+            auto hsv = ToHSV();
+            hsv.saturation = saturation;
+
+            *this = FromHSV(hsv);
+        }
+
+        constexpr void SetValue(const float value)
+        {
+            auto hsv = ToHSV();
+            hsv.value = value;
+
+            *this = FromHSV(hsv);
+        }
         [[nodiscard]]
         constexpr Color Blend(const Color& other, float ratio) const
         {
-                return Color( (*this * (1.f - ratio)) + (other * ratio) );
+            ratio = std::clamp(ratio, 0.f, 1.f);
+            return Color(*this * (1.f - ratio) + other * ratio);
         }
 
-        [[nodiscard]] static constexpr Color Red() {return {1.f, 0.f, 0.f, 1.f};}
+        [[nodiscard]] static constexpr Color Red()
-        [[nodiscard]] static constexpr Color Green() {return {0.f, 1.f, 0.f, 1.f};}
-        [[nodiscard]] static constexpr Color Blue() {return {0.f, 0.f, 1.f, 1.f};}
-    };
-
-    [[nodiscard]]
-    constexpr Color Blend(const Color& first, const Color& second, float ratio)
         {
-        return Color{first * (1.f - std::clamp(ratio, 0.f, 1.f)) + second * ratio};
+            return {1.f, 0.f, 0.f, 1.f};
         }
+        [[nodiscard]] static constexpr Color Green()
+        {
+            return {0.f, 1.f, 0.f, 1.f};
         }
+        [[nodiscard]] static constexpr Color Blue()
+        {
+            return {0.f, 0.f, 1.f, 1.f};
+        }
+    };
+} // namespace omath

include/omath/mat.hpp

@@ -10,6 +10,16 @@
 #include <utility>
 #include "omath/vector3.hpp"
 
+
+#ifdef near
+#undef near
+#endif
+
+
+#ifdef far
+#undef far
+#endif
+
 namespace omath
 {
     struct MatSize

include/omath/vector2.hpp

@@ -124,9 +124,9 @@ namespace omath
         }
 
 #ifndef _MSC_VER
-        [[nodiscard]] constexpr Type& Length() const
+        [[nodiscard]] constexpr Type Length() const
         {
-            return std::hypot(x, y);
+            return std::hypot(this->x, this->y);
         }
 
         [[nodiscard]] constexpr Vector2 Normalized() const

include/omath/vector3.hpp

@@ -121,12 +121,12 @@ namespace omath
 #ifndef _MSC_VER
         [[nodiscard]] constexpr Type Length() const
         {
-            return std::hypot(x, y, z);
+            return std::hypot(this->x, this->y, z);
         }
 
         [[nodiscard]] constexpr Type Length2D() const
         {
-            return Vector2::Length();
+            return Vector2<Type>::Length();
         }
         [[nodiscard]] Type DistTo(const Vector3& vOther) const
         {

source/color.cpp

@@ -2,7 +2,7 @@
 // Created by vlad on 2/4/24.
 //
 
-#include "omath/Color.hpp"
+#include "omath/color.hpp"
 #include <algorithm>
 #include <cmath>
 

source/engines/unity_engine/formulas.cpp

@@ -7,7 +7,7 @@
 
 namespace omath::unity_engine
 {
-    Vector3<float> unity_engine::ForwardVector(const ViewAngles& angles)
+    Vector3<float> ForwardVector(const ViewAngles& angles)
     {
         const auto vec = MatRotation(angles) * MatColumnFromVector(kAbsForward);
 
@@ -27,7 +27,7 @@ namespace omath::unity_engine
     }
     Mat4x4 CalcViewMatrix(const ViewAngles& angles, const Vector3<float>& cam_origin)
     {
-        return MatCameraView<float, MatStoreType::ROW_MAJOR>(ForwardVector(angles), RightVector(angles),
+        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,

source/matrix.cpp

@@ -1,6 +1,6 @@
-#include "omath/Matrix.hpp"
+#include "omath/matrix.hpp"
-#include "omath/Angles.hpp"
+#include "omath/angles.hpp"
-#include "omath/Vector3.hpp"
+#include "omath/vector3.hpp"
 
 
 #include <complex>

source/projectile_prediction/proj_pred_engine_avx2.cpp

@@ -4,13 +4,19 @@
 #include "omath/projectile_prediction/proj_pred_engine_avx2.hpp"
 #include "source_location"
 
+
+#if defined(OMATH_USE_AVX2) && defined(__i386__) && defined(__x86_64__)
+#include <immintrin.h>
+#include <format>
+#endif
+
 namespace omath::projectile_prediction
 {
     std::optional<Vector3<float>>
     ProjPredEngineAVX2::MaybeCalculateAimPoint([[maybe_unused]] const Projectile& projectile,
                                                [[maybe_unused]] const Target& target) const
     {
-#ifdef OMATH_USE_AVX2
+#if defined(OMATH_USE_AVX2) && defined(__i386__) && defined(__x86_64__)
         const float bulletGravity = m_gravityConstant * projectile.m_gravityScale;
         const float v0 = projectile.m_launchSpeed;
         const float v0Sqr = v0 * v0;

tests/engines/unit_test_unity_engine.cpp

@@ -51,7 +51,8 @@ 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});
+    const auto proj = cam.WorldToScreen({5.f, 3, 10.f});
+    std::println("{} {}", proj->x, proj->y);
 }
 
 TEST(UnitTestUnityEngine, CameraSetAndGetFov)

tests/general/unit_test_color.cpp

@@ -63,9 +63,9 @@ TEST_F(UnitTestColor, FromHSV)
 TEST_F(UnitTestColor, ToHSV)
 {
     HSV hsv = color1.ToHSV(); // Red color
-    EXPECT_FLOAT_EQ(hsv.m_hue, 0.0f);
+    EXPECT_FLOAT_EQ(hsv.hue, 0.0f);
-    EXPECT_FLOAT_EQ(hsv.m_saturation, 1.0f);
+    EXPECT_FLOAT_EQ(hsv.saturation, 1.0f);
-    EXPECT_FLOAT_EQ(hsv.m_value, 1.0f);
+    EXPECT_FLOAT_EQ(hsv.value, 1.0f);
 }
 
 // Test color blending
@@ -106,7 +106,7 @@ TEST_F(UnitTestColor, BlendVector3)
 {
     constexpr Color v1(1.0f, 0.0f, 0.0f, 1.f); // Red
     constexpr Color v2(0.0f, 1.0f, 0.0f, 1.f); // Green
-    constexpr Color blended = Blend(v1, v2, 0.5f);
+    constexpr Color blended = v1.Blend(v2, 0.5f);
     EXPECT_FLOAT_EQ(blended.x, 0.5f);
     EXPECT_FLOAT_EQ(blended.y, 0.5f);
     EXPECT_FLOAT_EQ(blended.z, 0.0f);