/*
Copyright (C) 1998 Pyrosoft Inc. (www.pyrosoftgames.com), Matthew Bogue
 
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/
#ifndef __Math_hpp__
#define __Math_hpp__

#include <math.h>

#include "Types/fXY.hpp"
#include "Types/iXY.hpp"

#ifndef M_PI
#define	M_PI 3.14159265358979323846
#endif

//--------------------------------------------------------------------------
class Math
{
private:
    static float cosTable[360 + 1];
    static float sinTable[360 + 1];

public:
    Math();

    static int   rad2Deg(float radian);
    static float deg2Rad(int degree);
    static float radAngle(const iXY &a, const iXY &b);
    static float radAngle(float x, float y);
    static int   degAngle(const iXY &a, const iXY &b);
    static int   degAngle(float x, float y);
    static fXY   unitDirection(const iXY &a, const iXY &b);
    static fXY   unitDirection(float angle);
    static fXY   unitDirectionEast(const fXY &northDirection);
    static fXY   unitDirectionWest(const fXY &northDirection);

    static float getCos(int angle);
    static float getSin(int angle);

    static void init();
}
; // end Math

extern Math math;

#endif // end __Math_hpp__