math module

1 files changed, 51 insertions, 0 deletions

diff --git a/src/math/color.h b/src/math/color.h
new file mode 100644
index 0000000..2c69b9b
--- /dev/null
+++ b/src/math/color.h
@@ -0,0 +1,51 @@
+/*
+   common/color.h
+   This file is part of the Osirion project and is distributed under 
+   the terms of the GNU General Public License version 2 
+*/
+
+#ifndef __INCLUDED_MATH_COLOR_H__
+#define __INCLUDED_MATH_COLOR_H__
+
+#include <iostream> 
+
+namespace math {
+
+/// a class representing an RGBA color value
+class Color {
+	public:
+		Color();
+		Color(const float, float  const, const float, const float=1.0f);
+		Color(const float, const float=1.0f);
+		Color(const Color &);
+
+		float red() const;
+		float green() const;
+		float blue() const;
+		float alpha() const;
+		
+		const Color &operator=(const Color &);
+		
+		Color operator*(const float scalar) const;
+		
+		// Some default colors
+		static const Color Black() { return Color(0.0f); };
+		static const Color White() { return Color(1.0f); };
+		static const Color Red() { return Color(1.0f,0.0f,0.0f); };
+		static const Color Green() { return Color(0.0f,1.0f,0.0f); };
+		static const Color Blue()  { return Color(0.0f, 0.0f, 1.0f); };
+		static const Color Yellow() { return Color(1.0f, 1.0f, 0.0f); };
+
+	private:
+		void normalize();
+		float _r, _g, _b, _a;
+};
+
+std::ostream &operator<<(std::ostream &os, const Color &c);
+
+Color operator*(const float scalar, const Color& color);
+
+} // namespace math
+
+#endif // __INCLUDED_MATH_COLOR_H__
+