// Stroke drawing code ---- (c) 2003 by Aaron Hertzmann

#ifndef __POINT_HH__
#define __POINT_HH__

#include <math.h>
#include <assert.h>

struct Point
{
  float x,y;

  Point() { };
  Point(float x,float y) { this->x = x; this->y = y; }
  Point(const Point & v) { x = v.x;y=v.y; }
  Point & operator=(const Point & v) { x = v.x;y=v.y; return *this; }

  Point operator+(const Point & v) const { return Point(x+v.x,y+v.y); }
  Point operator-(const Point & v) const { return Point(x-v.x,y-v.y); }
  Point operator*(float v) const { return Point(x*v,y*v); }
  Point operator/(float v) const { return Point(x/v,y/v); }
  bool operator==(const Point & v) const { return x == v.x && y == v.y; }
  Point operator-() const { return Point(-x,-y); }

  Point & operator+=(const Point & v) { x += v.x;y+=v.y; return *this; }
  float L2sqr() const { return x*x+y*y; }
  float L2() const { return sqrtf(x*x+y*y); }
  Point round() const { return Point(floor(x+.5),floor(y+.5)); }
  float dot(const Point & p) const { return x*p.x+y*p.y; }

  void normalize() { float mag=L2(); if (mag != 0) {x/=mag;y/=mag;} }
};



#endif