/*
   render/light.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_RENDER_LIGHT_H__
#define __INCLUDED_RENDER_LIGHT_H__

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

namespace render
{

/**
 * @brief paramaters for a single light source
 * */
class Light
{
public:
	/**
	 * @brief default constructor, creates a white light at (0,0,0)
	 * */
	Light();
	
	/**
	 * @brief creates a light source with given color and location
	 * */
	Light(const math::Vector3f & location, const math::Color & color);
	
	/**
	 * @brief destructor
	 */
	~Light();
	
	/* ---- inspectors ----------------------------------------- */
	
	/**
	 * @brief returns the location for this light source
	 * */
	inline const math::Vector3f & location() const {
		return light_location;
	}
	
	/**
	 * @brief returns the color for this light source
	 * */
	inline const math::Color & color() const {
		return light_color;
	}
	
	/**
	 * @brief returns the attenuation settings for this light source
	 * */
	inline const math::Vector3f & attenuation() const {
		return light_attenuation;
	}
	
	/* ---- mutators ------------------------------------------- */
	
	/**
	 * @brief set the location for this light source
	 * @see location()
	 * */
	inline void set_location(const math::Vector3f & location) {
		light_location.assign(location);
	}
	
	/**
	 * @brief set the location for this light source
	 * @see color()
	 * */
	inline void set_color(const math::Color & color) {
		light_color.assign(color);
	}
	
	/**
	 * @brief set the attenuation settings for this light source
	 * */
	inline void set_attenuation(const float constant, const float linear, const float quadratic) {
		light_attenuation.assign(constant, linear, quadratic);
	}
	
private:
	math::Vector3f 	light_location;
	math::Color	light_color;
	math::Vector3f 	light_attenuation;
	

};

}

#endif