Vector2D.h

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#pragma once
 
#include <iostream>
 
struct Vector2D {
public:
    float x, y;
 
    Vector2D();
    Vector2D(float x, float y);
 
    Vector2D& add(const Vector2D vec);
 
    Vector2D& subtract(const Vector2D vec);
 
    Vector2D& multiply(const Vector2D vec);
 
    Vector2D& divide(const Vector2D vec);
 
    friend Vector2D operator+(Vector2D v1, const Vector2D& v2);
    friend Vector2D operator-(Vector2D v1, const Vector2D& v2);
    friend Vector2D operator*(Vector2D v1, const Vector2D& v2);
    friend Vector2D operator/(Vector2D v1, const Vector2D& v2);
 
    Vector2D& operator+=(const Vector2D& vec);
    Vector2D& operator-=(const Vector2D& vec);
    Vector2D& operator*=(const Vector2D& vec);
    Vector2D& operator/=(const Vector2D& vec);
 
    Vector2D& operator*(const int& i);
 
    bool operator==(const Vector2D& vec);
    bool operator!();
 
    Vector2D& zero();
 
    friend std::ostream& operator<<(std::ostream& stream, const Vector2D& vec);
};