App: Add Vector2 and Vector3 implementation

App/.vscode/settings.json

@@ -42,7 +42,10 @@
         "xstddef": "cpp",
         "xstring": "cpp",
         "xtr1common": "cpp",
-        "xutility": "cpp"
+        "xutility": "cpp",
+        "list": "cpp",
+        "vector": "cpp",
+        "xtree": "cpp"
     },
     "cmake.configureOnOpen": true
 }

App/AppLib/include/AppLib/Math.hh

@@ -8,6 +8,9 @@ namespace Core
     class Vector2
     {
     public:
+        float x;
+        float y;
+
         Vector2();
         Vector2(float x, float y);
 
@@ -15,18 +18,15 @@ namespace Core
         Vector2 operator-(Vector2 const& other);
         Vector2 operator*(Vector2 const& other);
         Vector2 operator/(Vector2 const& other);
-        Vector2 operator+=(Vector2 const& other);
-        Vector2 operator-=(Vector2 const& other);
-        Vector2 operator*=(Vector2 const& other);
-        Vector2 operator/=(Vector2 const& other);
+        Vector2& operator+=(Vector2 const& other);
+        Vector2& operator-=(Vector2 const& other);
+        Vector2& operator*=(Vector2 const& other);
+        Vector2& operator/=(Vector2 const& other);
 
         bool operator==(Vector2 const& other);
         bool operator!=(Vector2 const& other);
 
         Vector2 operator*(float const& scalar);
-
-        float x;
-        float y;
     };
 
     class Vector3
@@ -37,14 +37,18 @@ namespace Core
         float z;
         float w;
 
+        Vector3();
+        Vector3(float x, float y, float z);
+        Vector3(float x, float y, float z, float w);
+
         Vector3 operator+(Vector3 const& other);
         Vector3 operator-(Vector3 const& other);
         Vector3 operator*(Vector3 const& other);
         Vector3 operator/(Vector3 const& other);
-        Vector3 operator+=(Vector3 const& other);
-        Vector3 operator-=(Vector3 const& other);
-        Vector3 operator*=(Vector3 const& other);
-        Vector3 operator/=(Vector3 const& other);
+        Vector3& operator+=(Vector3 const& other);
+        Vector3& operator-=(Vector3 const& other);
+        Vector3& operator*=(Vector3 const& other);
+        Vector3& operator/=(Vector3 const& other);
 
         bool operator==(Vector3 const& other);
         bool operator!=(Vector3 const& other);

App/AppLib/src/Math.cpp

@@ -27,7 +27,143 @@ namespace Core
 
     Vector2 Vector2::operator/(Vector2 const &other)
     {
+        // TODO(Eero): Add Zero checks
         return Vector2(this->x/other.x, this->y/other.y);
     }
 
+    Vector2& Vector2::operator+=(Vector2 const &other)
+    {
+        this->x += other.x;
+        this->y += other.y;
+        return *this;
+    }
+
+    Vector2& Vector2::operator-=(Vector2 const &other)
+    {
+        this->x -= other.x;
+        this->y -= other.y;
+        return *this;
+    }
+
+    Vector2& Vector2::operator*=(Vector2 const &other)
+    {
+        this->x *= other.x;
+        this->y *= other.y;
+        return *this;
+    }
+
+    Vector2& Vector2::operator/=(Vector2 const &other)
+    {
+        // TODO(Eero): Add Zero checks
+        this->x /= other.x;
+        this->y /= other.y;
+        return *this;
+    }
+
+    bool Vector2::operator==(Vector2 const &other)
+    {
+        return (this->x == other.x && this->y == other.y) ? true : false;
+    }
+
+    bool Vector2::operator!=(Vector2 const &other)
+    {
+        return (this->x != other.x || this->y != other.y) ? true : false;
+    }
+
+    Vector2 Vector2::operator*(float const &scalar)
+    {
+        return Vector2(scalar * this->x, scalar * this->y);
+    }
+
+    Vector3::Vector3() : x(0), y(0), z(0), w(1)
+    {
+    }
+
+    Vector3::Vector3(float x, float y, float z) : x(x), y(y), z(z), w(1)
+    {
+    }
+
+    Vector3::Vector3(float x, float y, float z, float w) : x(x), y(y), z(z), w(w)
+    {
+    }
+
+    Vector3 Vector3::operator+(Vector3 const &other)
+    {
+        return Vector3(this->x+other.x, this->y+other.y, this->z+other.z);
+    }
+
+    Vector3 Vector3::operator-(Vector3 const &other)
+    {
+        return Vector3(this->x-other.x, this->y-other.y, this->z-other.z);
+    }
+
+    Vector3 Vector3::operator*(Vector3 const &other)
+    {
+        return Vector3(this->x*other.x, this->y*other.y, this->z*other.z);
+    }
+
+    Vector3 Vector3::operator/(Vector3 const &other)
+    {
+        // TODO(Eero): Add Zero checks
+        return Vector3(this->x/other.x, this->y/other.y, this->z/other.z);
+    }
+
+    Vector3& Vector3::operator+=(Vector3 const &other)
+    {
+        this->x += other.x;
+        this->y += other.y;
+        this->z += other.z;
+        return *this;
+    }
+
+    Vector3& Vector3::operator-=(Vector3 const &other)
+    {
+        this->x -= other.x;
+        this->y -= other.y;
+        this->z -= other.z;
+        return *this;
+    }
+
+    Vector3& Vector3::operator*=(Vector3 const &other)
+    {
+        this->x *= other.x;
+        this->y *= other.y;
+        this->z *= other.z;
+        return *this;
+    }
+
+    Vector3& Vector3::operator/=(Vector3 const &other)
+    {
+        // TODO(Eero): Add Zero checks
+        this->x /= other.x;
+        this->y /= other.y;
+        this->z /= other.z;
+        return *this;
+    }
+
+    bool Vector3::operator==(Vector3 const &other)
+    {
+        return (
+            this->x == other.x 
+            && this->y == other.y 
+            && this->z == other.z 
+            && this->w == other.w // TODO(Eero): Is w check required?
+        ) ? true : false;
+    }
+
+    bool Vector3::operator!=(Vector3 const &other)
+    {
+        return (
+            this->x != other.x 
+            || this->y != other.y 
+            || this->z != other.z 
+            || this->w != other.w // TODO(Eero): Is w check required?
+        ) ? true : false;
+    }
+
+    Vector3 Vector3::operator*(float const &scalar)
+    {
+        return Vector3(scalar * this->x, scalar * this->y, scalar * this->z);
+    }
+
 } // namespace Core

App/Tests/CMakeLists.txt

@@ -7,9 +7,16 @@ add_executable(
   MathTest.cpp
 )
 
-find_package(GTest CONFIG REQUIRED)
-target_link_libraries(AppTest PRIVATE GTest::gtest GTest::gtest_main GTest::gmock GTest::gmock_main)
+target_include_directories(App PUBLIC "${CMAKE_SOURCE_DIR}/AppLib/include/AppLib")
 
+find_package(GTest CONFIG REQUIRED)
+target_link_libraries(AppTest PRIVATE 
+  GTest::gtest 
+  GTest::gtest_main 
+  GTest::gmock 
+  GTest::gmock_main 
+  AppLib
+)
 
 if (CMAKE_VERSION VERSION_GREATER 3.12)
   set_property(TARGET AppLib PROPERTY CXX_STANDARD 20)

App/Tests/MathTest.cpp

@@ -1,4 +1,7 @@
 #include <gtest/gtest.h>
+#include "Math.hh"
+
+using namespace Core;
 
 // Demonstrate some basic assertions.
 TEST(AppTest, BasicAssertions) {
@@ -8,6 +11,15 @@ TEST(AppTest, BasicAssertions) {
   EXPECT_EQ(7 * 6, 42);
 }
 
+TEST(Math, Vector2_Add)
+{
+    Vector2 vec1(1,2);
+    Vector2 vec2(1.5, -2.5);
+    Vector2 result(vec1.x+vec2.x, vec1.y+vec2.y);
+    ASSERT_FLOAT_EQ(result.x, 2.5);
+    ASSERT_FLOAT_EQ(result.y, -0.5);
+}
+
 
 int main(int argc, char** argv)
 {