#ifndef VERTEX_H_
#define VERTEX_H_

class Vertex {
  private:
    double x, y;
  public:
    Vertex() {x = y = 0.0;}
    Vertex(const Vertex &v) {x = v.x; y = v.y;}
    Vertex(double x, double y) {this->x = x; this->y = y;}
    
    double getX() const {return x;}
    void setX(double x) {this->x = x;}
    
    double getY() const {return y;}
    void setY(double y) {this->y = y;}
    
    void setLocation(const Vertex &v) {x = v.x; y = v.y;}
    void setLocation(double x, double y) {this->x = x; this->y = y;}
    
    double distanceSq(const Vertex &v) const;
    double distance(const Vertex &v) const;
    
    Vertex operator+(const Vertex &v) const;
    Vertex operator-(const Vertex &v) const;
    
    Vertex& operator+=(const Vertex &v);
    Vertex& operator-=(const Vertex &v);
};

#endif /*VERTEX_H_*/