math module

1 files changed, 84 insertions, 0 deletions

diff --git a/src/math/color.cc b/src/math/color.cc
new file mode 100644
index 0000000..e41a5aa
--- /dev/null
+++ b/src/math/color.cc
@@ -0,0 +1,84 @@
+/*
+   math/color.cc
+   This file is part of the Osirion project and is distributed under 
+   the terms of the GNU General Public License version 2 
+*/
+
+// project headers
+#include "math/color.h"
+
+namespace math {
+
+Color::Color() {
+	_r = _g = _b = 0.0f;
+	_a = 1.0f;
+}
+
+Color::Color(const float red, const float green , const float blue , const float alpha) {
+	_r = red;
+	_g = green;
+	_b = blue;
+	_a = alpha;
+}
+
+Color::Color(const float grey, const float alpha) {
+	_r = _g = _b = grey;
+	_a = alpha;
+}
+
+Color::Color(const Color &other) {
+	this->operator=(other);
+}
+
+const Color & Color::operator=(const Color &other) {
+	this->_r = other._r;
+	this->_g = other._g;
+	this->_b = other._b;
+	this->_a = other._a;
+	return (*this);
+}
+
+void Color::normalize() {
+	float tmp = _r;
+
+	if (_g > tmp)
+		tmp = _g;
+	if ( _b > tmp)
+		tmp = _b;
+
+	if (tmp > 1) {
+		_r /= tmp;
+		_g /= tmp;
+		_b /= tmp;
+	}	
+}
+
+float Color::red() const {
+	return _r;
+}
+
+float Color::green() const {
+	return _g;
+}
+
+float Color::blue() const {
+	return _b;
+}
+
+float Color::alpha() const {
+	return _a;
+}
+
+Color Color::operator*(float scalar) const {
+	return Color(red()*scalar, green()*scalar, blue()*scalar, alpha());
+}
+
+Color operator*(float scalar, const Color& color) {
+	return color * scalar;
+}
+std::ostream &operator<<(std::ostream &os, const Color &c) {
+	os <<  c.red() << " " << c.green() << " " << c.blue() << " " << c.alpha();
+	return os;
+}
+
+} // namespace math