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// * This file is part of the COLOBOT source code
// * Copyright (C) 2012, Polish Portal of Colobot (PPC)
// *
// * 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
// * (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, see  http://www.gnu.org/licenses/.

// color.h

#pragma once


namespace Gfx {

/**
  \struct Color
  \brief RGBA color */
struct Color
{
    //! Red, green, blue and alpha components
    float r, g, b, a;

    //! Constructor; default values are (0,0,0,0) = black
    Color(float aR = 0.0f, float aG = 0.0f, float aB = 0.0f, float aA = 0.0f)
     : r(aR), g(aG), b(aB), a(aA) {}

    //! Returns the struct cast to \c float* array; use with care!
    inline float* Array()
    {
        return (float*)this;
    }
};

/**
  \struct ColorHSV
  \brief HSV color */
struct ColorHSV
{
    float h, s, v;

    ColorHSV(float aH = 0.0f, float aS = 0.0f, float aV = 0.0f)
     : h(aH), s(aS), v(aV) {}
};

//! Converts a RGB color to HSV color
Gfx::ColorHSV RGB2HSV(Gfx::Color color);

//! Converts a HSV color to RGB color
Gfx::Color HSV2RGB(Gfx::ColorHSV color);

}; // namespace Gfx