/*
   render/renderext.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_RENDEREXT_H__
#define __INCLUDED_RENDER_RENDEREXT_H__

#include <list>

#include "core/extension.h"
#include "render/particlesystem.h"

namespace render
{

/// the render extension of an entity
class RenderExt : public core::Extension
{
public:
	RenderExt(core::Entity *entity);
	~RenderExt();

	typedef std::list<ParticleSystem *> ParticleSystems;

	inline const bool visible() const {
		return state_visible;
	}

	inline const bool detailvisible() const {
		return state_detailvisible;
	}

	inline const bool power() const {
		return state_power;
	}
	
	/**
	 * @brief returns true if the entity is behind the camera
	 */
	inline const bool behind() const {
		return state_behind;
	}

	inline const float fuzz() const {
		return state_fuzz;
	}

	inline const float thrust() const {
		return state_thrust;
	}

	inline const float enginetime() const {
		return state_enginetime;
	}
	
	/**
	 * @brief distance from attached entity to camera
	 */
	inline float distance() const {
		return state_distance;
	}

	/**
	 * @brief particle systems for the attached entity
	 */
	inline ParticleSystems &particles() {
		return state_particles;
	}
	
		
	inline ParticleSystem *explosion() {
		return state_explosion;
	}	
	
	virtual void frame(float elapsed);
	
	virtual void frame(float elapsed, const Camera & camera);

	
private:
	bool 			state_visible;
	bool 			state_detailvisible;
	bool			state_behind;
	bool			state_power;
	

	float 			state_fuzz;
	float 			state_distance;
	
	float			state_enginetime;
	float			state_thrust;

	ParticleSystems		state_particles;
	ParticleSystem		*state_explosion;
};

} // namespace render

#endif // __INCLUDED_RENDER_RENDEREXT_H__