#include "point.h"


Point::Point( int px, int py )
     : x( px ),
       y( py )
{
}


Point::Point( const Point& other )
     : x( other.x ),
       y( other.y )
{
}


void Point::Offset( int xOffset, int yOffset )
{

  x += xOffset;
  y += yOffset;

}


void Point::Offset( const Point& point )
{

  x += point.x;
  y += point.y;

}


Point& Point::operator += ( const Point& other )
{

  x += other.x;
  y += other.y;
  
  return *this;

}


Point& Point::operator -= ( const Point& other )
{

  x -= other.x;
  y -= other.y;
  
  return *this;

}


Point operator + ( const Point& p1, const Point& p2 )
{

  return Point( p1.x + p2.x, p1.y + p2.y );

}


Point operator - ( const Point& p1, const Point& p2 )
{

  return Point( p1.x - p2.x, p1.y - p2.y );

}

bool operator == ( const Point& p1, const Point& p2 )
{

  return ( ( p1.x == p2.x ) && ( p1.y == p2.y ) );

}