added vector2d

src/helpers/Vector2D.hpp

@@ -0,0 +1,29 @@
+#pragma once
+
+#include <math.h>
+
+class Vector2D {
+   public:
+    Vector2D(double, double);
+    Vector2D();
+    ~Vector2D();
+
+    double x = 0;
+    double y = 0;
+
+    // returns the scale
+    double normalize();
+
+    Vector2D operator+(Vector2D a) {
+        return Vector2D(this->x + a.x, this->y + a.y);
+    }
+    Vector2D operator-(Vector2D a) {
+        return Vector2D(this->x - a.x, this->y - a.y);
+    }
+    Vector2D operator*(float a) {
+        return Vector2D(this->x * a, this->y * a);
+    }
+    Vector2D operator/(float a) {
+        return Vector2D(this->x / a, this->y / a);
+    }
+};