/*      _______   __   __   __   ______   __   __   _______   __   __                 
 *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\                
 *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /                 
 *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /                  
 *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /                   
 * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /                    
 * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/                      
 *
 * Copyright (c) 2004, 2005 darkbits                        Js_./
 * Per Larsson a.k.a finalman                          _RqZ{a<^_aa
 * Olof Naessén a.k.a jansem/yakslem                _asww7!uY`>  )\a//
 *                                                 _Qhm`] _f "'c  1!5m
 * Visit: http://guichan.darkbits.org             )Qk<P ` _: :+' .'  "{[
 *                                               .)j(] .d_/ '-(  P .   S
 * License: (BSD)                                <Td/Z <fP"5(\"??"\a.  .L
 * Redistribution and use in source and          _dV>ws?a-?'      ._/L  #'
 * binary forms, with or without                 )4d[#7r, .   '     )d`)[
 * modification, are permitted provided         _Q-5'5W..j/?'   -?!\)cam'
 * that the following conditions are met:       j<<WP+k/);.        _W=j f
 * 1. Redistributions of source code must       .$%w\/]Q  . ."'  .  mj$
 *    retain the above copyright notice,        ]E.pYY(Q]>.   a     J@\
 *    this list of conditions and the           j(]1u<sE"L,. .   ./^ ]{a
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 * 2. Redistributions in binary form must        )_]X{Z('a_"a7'<a"a,  ]"[
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 *    documentation and/or other materials      .Z!=J ]e []('-4f _ ) -.)m]'
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 * 3. Neither the name of Guichan nor the      :$we` _! + _/ .        j?
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT       )/ )/           !
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * For comments regarding functions please see the header file. 
 */

#include "guichan/color.h"

namespace gcn
{
    Color::Color()
    {
        r = 0;
        g = 0;
        b = 0;
        a = 255;
    }

    Color::Color(int color)
    {
        a = 255;
        r = (color >> 16) & 0xFF;
        g = (color >> 8) & 0xFF;
        b = color & 0xFF;    
    }
    
    Color::Color(int r, int g, int b, int a)
    {
        this->r = r;
        this->g = g;
        this->b = b;
        this->a = a;
    }

    Color Color::operator+(const Color& color) const
    {
        Color result;
        result.r = r + color.r;
        result.g = g + color.g;
        result.b = b + color.b;
        result.a = 255;

        result.r = (result.r>255?255:(result.r<0?0:result.r));
        result.g = (result.g>255?255:(result.g<0?0:result.g));
        result.b = (result.b>255?255:(result.b<0?0:result.b));

        return result;
    }
  
    Color Color::operator-(const Color& color) const
    {
        Color result;
        result.r = r - color.r;
        result.g = g - color.g;
        result.b = b - color.b;
        result.a = 255;

        result.r = (result.r>255?255:(result.r<0?0:result.r));
        result.g = (result.g>255?255:(result.g<0?0:result.g));
        result.b = (result.b>255?255:(result.b<0?0:result.b));

        return result;
    }

    Color Color::operator*(float value) const
    {
        Color result;
        result.r = (int)(r * value);
        result.g = (int)(g * value);
        result.b = (int)(b * value);
        result.a = a;

        result.r = (result.r>255?255:(result.r<0?0:result.r));
        result.g = (result.g>255?255:(result.g<0?0:result.g));
        result.b = (result.b>255?255:(result.b<0?0:result.b));

        return result;    
    }

    bool Color::operator==(const Color& color) const
    {
        return r == color.r && g == color.g && b == color.b && a == color.a;
    }

    bool Color::operator!=(const Color& color) const
    {
        return !(r == color.r && g == color.g && b == color.b && a == color.a);
    }
}
