-#ifndef __COLOR_HPP__
-#define __COLOR_HPP__
+// SuperTux
+// Copyright (C) 2006 Matthias Braun <matze@braunis.de>
+//
+// 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/>.
+#ifndef HEADER_SUPERTUX_VIDEO_COLOR_HPP
+#define HEADER_SUPERTUX_VIDEO_COLOR_HPP
+
+#include <assert.h>
#include <vector>
+#include "util/log.hpp"
+
class Color
{
public:
- Color()
- : red(0), green(0), blue(0), alpha(1.0)
- { }
- Color(float red, float green, float blue, float alpha = 1.0)
- : red(red), green(green), blue(blue), alpha(alpha)
- { }
- Color(const std::vector<float>& vals)
+ Color() :
+ red(0),
+ green(0),
+ blue(0),
+ alpha(1.0f)
+ {}
+
+ Color(float red_, float green_, float blue_, float alpha_ = 1.0) :
+ red(red_),
+ green(green_),
+ blue(blue_),
+ alpha(alpha_)
+ {
+ assert(0 <= red && red <= 1.0);
+ assert(0 <= green && green <= 1.0);
+ assert(0 <= blue && blue <= 1.0);
+ }
+
+ Color(const std::vector<float>& vals) :
+ red(),
+ green(),
+ blue(),
+ alpha()
{
- red = vals[0];
+ assert(vals.size() >= 3);
+ red = vals[0];
green = vals[1];
- blue = vals[2];
+ blue = vals[2];
if(vals.size() > 3)
alpha = vals[3];
else
alpha = 1.0;
+ assert(0 <= red && red <= 1.0);
+ assert(0 <= green && green <= 1.0);
+ assert(0 <= blue && blue <= 1.0);
+ }
+
+ bool operator==(const Color& other) const
+ {
+ return red == other.red && green == other.green && blue == other.blue
+ && alpha == other.alpha;
+ }
+
+ float greyscale() const
+ {
+ return red * 0.30f + green * 0.59f + blue * 0.11f;
+ }
+
+ bool operator < (const Color& other) const
+ {
+ return greyscale() < other.greyscale();
}
float red, green, blue, alpha;
+
+ static const Color BLACK;
+ static const Color RED;
+ static const Color GREEN;
+ static const Color BLUE;
+ static const Color CYAN;
+ static const Color MAGENTA;
+ static const Color YELLOW;
+ static const Color WHITE;
};
#endif
+/* EOF */