/*
   math/matrix4f.cc
   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_MATRIX4F_H__
#define __INCLUDED_MATH_MATRIX4F_H__

#include <iostream>

#include "math/axis.h"

namespace math
{

/// a transformation matrix
class Matrix4f
{
public:
	Matrix4f();
	Matrix4f(const Matrix4f & other);
	Matrix4f(const Axis & axis);
	
	/// set all values to zero
	void clear();
	
	/// set the value to a 4x4 unity matrix
	void unity();
	
	/// assignment operator
	void assign(const Matrix4f & other);
	
	/// assignment operator
	inline Matrix4f & operator=(const Matrix4f &other);
	
	/// assign the matrix transformation equivalent to the coordinate system
	void assign(const Axis & axis);
	
	/// assign the matrix transformation equivalent to the coordinate system
	Matrix4f & operator=(const Axis & axis);
	
	/// return a pointer to the internal data
	inline float * ptr() const {
		return (float *) matrix;
	}
	
	/// return the transpose matrix
	Matrix4f const transpose();
	
private:
	float		matrix[4][4];
};

}

#endif // __INCLUDED_MATH_MATRIX4F_H__