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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
#include <sstream>
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) {}
inline Gfx::Color Inverse() const
{
return Gfx::Color(1.0f - r, 1.0f - g, 1.0f - b, 1.0f - a);
}
//! Returns the struct cast to \c float* array; use with care!
inline float* Array()
{
return (float*)this;
}
//! Returns the struct cast to <tt>const float*</tt> array; use with care!
inline const float* Array() const
{
return (const float*)this;
}
//! Returns a string (r, g, b, a)
inline std::string ToString() const
{
std::stringstream s;
s.precision(3);
s << "(" << r << ", " << g << ", " << b << ", " << a << ")";
return s.str();
}
inline bool operator==(const Gfx::Color &other) const
{
return r == other.r && g == other.g && b == other.b && a == other.a;
}
};
/**
\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) {}
//! Returns a string "(h, s, v)"
inline std::string ToString() const
{
std::stringstream s;
s.precision(3);
s << "(" << h << ", " << s << ", " << v << ")";
return s.str();
}
};
//! 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
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