Add Unreal Engine maths lib

UEngine/UEMath.hpp

@@ -0,0 +1,40 @@
+#pragma once
+#include <cmath>
+
+
+
+namespace UEMath
+{
+    struct Vector
+    {
+        float X;
+        float Y;
+        float Z;
+    };
+
+    struct Rotator
+    {
+        float Pitch; // X
+        float Yaw;   // Y
+        float Roll;  // Z
+    };
+
+    /**
+     * @brief Converts a rotator (Pitch, Yaw) to a forward direction vector.
+     * Computes a normalized forward vector from the given FRotator,
+     * using Pitch and Yaw angles (in degrees).
+     * @param rotator Input rotation (degrees).
+     * @return Forward direction vector.
+     */
+    static inline Vector RotatorToForwardVector(const Rotator& rotator)
+    {
+        constexpr float DEG_TO_RAD = 3.14159265358979323846f / 180.0f;
+
+        const float cp = cosf(rotator.Pitch * DEG_TO_RAD);
+        const float sp = sinf(rotator.Pitch * DEG_TO_RAD);
+        const float cy = cosf(rotator.Yaw * DEG_TO_RAD);
+        const float sy = sinf(rotator.Yaw * DEG_TO_RAD);
+
+        return Vector(cp * cy, cp * sy, sp);
+    }
+}