/*
   model/triangle.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_MODEL_TRIANGLE_H__
#define __INCLUDED_MODEL_TRIANGLE_H__

#include "math/color.h"
#include "math/vector3f.h"

namespace model
{

/// a model triangle
class Triangle
{
public:
	/// a new triangle with 3 vertices, a normal and detail flag
	Triangle(math::Vector3f const &v0, math::Vector3f const &v1, math::Vector3f const &v2,
		 math::Vector3f const &normal, bool detail);

	/**
	 * @brief a new triangle with 3 vertices with normals and a face normal
	 * this constructor sets the detail flag to false
	 */
	Triangle(	math::Vector3f const &v0, math::Vector3f const &n0,
			math::Vector3f const &v1, math::Vector3f const &n1,
			math::Vector3f const &v2, math::Vector3f const &n2,
		 	math::Vector3f const &normal);

	/// delete triangle
	~Triangle();
	
	/// normal of the triangle
	inline math::Vector3f const & normal() const
	{
		return triangle_normal;
	}
	
	/// indidcates if this triangle was generated from a detail brush
	inline bool detail() const
	{
		return triangle_detail;
	}
	
	/// triangle vertex 0
	inline math::Vector3f & v0()
	{
		return triangle_v0;
	}
	
	/// triangle vertex 0 normal
	inline math::Vector3f & n0()
	{
		return triangle_n0;
	}

	/// triangle vertex 1
	inline math::Vector3f & v1()
	{
		return triangle_v1;
	}

	/// triangle vertex 1 normal
	inline math::Vector3f & n1()
	{
		return triangle_n1;
	}
	
	/// triangle vertex 2
	inline math::Vector3f & v2()
	{
		return triangle_v2;
	}

	/// triangle vertex 0 normal
	inline math::Vector3f & n2()
	{
		return triangle_n2;
	}

private:

	math::Vector3f 		triangle_v0;
	math::Vector3f 		triangle_n0;

	math::Vector3f 		triangle_v1;
	math::Vector3f 		triangle_n1;

	math::Vector3f 		triangle_v2;
	math::Vector3f 		triangle_n2;
		
	math::Vector3f 		triangle_normal;
	bool			triangle_detail;
};

}

#endif // __INCLUDED_MODEL_TRIANGLE_H__