added vector2d

src/helpers/Vector2D.cpp

@@ -0,0 +1,19 @@
+#include "Vector2D.hpp"
+
+Vector2D::Vector2D(double xx, double yy) {
+    x = xx;
+    y = yy;
+}
+
+Vector2D::Vector2D() { x = 0; y = 0; }
+Vector2D::~Vector2D() {}
+
+double Vector2D::normalize() {
+    // get max abs
+    const auto max = abs(x) > abs(y) ? abs(x) : abs(y);
+
+    x /= max;
+    y /= max;
+
+    return max;
+}

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);
+    }
+};

src/includes.hpp

@@ -66,3 +66,5 @@ extern "C" {
 #undef static
 
 #endif
+
+#include "helpers/Vector2D.hpp"