#include "StdAfx.h"
#include "Location.h"
#using <mscorlib.dll>

using namespace System;

const double Pi = Math::PI;

void Location::MoveBy(int angle, double d)
{
   double radians = angle*Pi/180;
   x += d * Math::Cos(radians);
   y += d * Math::Sin(radians);
}

void Location::MoveBy(Direction angle, double d)
{
   switch( angle ){
      case East: x += d; return;
      case West: x -= d; return;
      case North: y += d; return;
      case South: y -= d; return;
      default: MoveBy(angle, d);
   }
}


inline double sqr(double x) { return x*x; }

double Location::Distance(Location &a, Location &b)
{
    return Math::Sqrt( sqr(a.X-b.X) + sqr(a.Y-b.Y) );
}