Color.hh

/**********************************************************************
 * blaRAY -- photon mapper/raytracer
 * (C) 2008 by Tomasz bla Fortuna <bla@thera.be>, <bla@af.gliwice.pl>
 *
 * 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 3 of the License, or
 * any later version.
 *
 * See Docs/LICENSE
 *********************/

#ifndef _COLOR_H_
#define _COLOR_H_

#include <iostream>

#include <stdexcept>
#include "General/Types.hh"
#include "General/Debug.hh"
#include "Math/Tuple.hh"


namespace World {
        class Color : public Math::Tuple<Double, true, 3> {
        public:
                enum { R=0, G=1, B=2 };
                Color() : Math::Tuple<Double, true, 3>()
                {
                };

                Color(Double r, Double g, Double b);

                Color(const Math::Tuple<Double, true, 3> &T) {
                        D[0] = T[0];
                        D[1] = T[1];
                        D[2] = T[2];
                }

                friend std::ostream &operator<<(std::ostream &os,
                                                const Color &C);
        };

        namespace ColLib {
                inline Color White()
                {
                        return Color(1.0, 1.0, 1.0);
                }

                inline Color Black()
                {
                        return Color(0.0, 0.0, 0.0);
                }

                inline Color Red()
                {
                        return Color(1.0, 0.0, 0.0);
                }

                inline Color Green()
                {
                        return Color(0.0, 1.0, 0.0);
                }

                inline Color Blue()
                {
                        return Color(0.0, 0.0, 1.0);
                }

                inline Color Gray()
                {
                        return Color(0.5, 0.5, 0.5);
                }

        };

}

#endif

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