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/*
   render/particlesystem.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_PARTICLESYSTEM_H__
#define __INCLUDED_RENDER_PARTICLESYSTEM_H__

#include <list>

#include "core/entity.h"

#include "render/camera.h"
#include "render/particlesystemscript.h"
#include "render/particleejector.h"


namespace render {
	
/* ---- class ParticleSystem --------------------------------------- */

/**
 * @brief abstract base class for a particle system attached to an entity
 * */
class ParticleSystem
{
public:
	typedef std::list<ParticleEjector *> Ejectors;
	
	ParticleSystem(const ParticleSystemScript *script, const core::Entity *entity, const model::Particles *modelclass);
	~ParticleSystem();

	void draw(const float seconds, const Camera &camera);
	
	/**
	 * @brief clear all particles from all ejectors
	 * */
	void clear();
	
	inline const core::Entity *entity()
	{
		return particlesystem_entity;
	}
	
	/**
	 * @brief location of the particlesystem
	 * */
	inline const math::Vector3f &location() const {
		return particlesystem_location;
	}
	
	/**
	 * @brief axis of the particlesystem
	 * */
	inline const math::Axis &axis() const {
		return particlesystem_axis;
	}
	
	inline Ejectors	 & ejectors()
	{
		return particlesystem_ejectors;
	}

private:
	float			particlesystem_modelscale;
	math::Vector3f		particlesystem_location;
	math::Axis		particlesystem_axis;
	const core::Entity	*particlesystem_entity;
	Ejectors		particlesystem_ejectors;
	
};

} // namespace

#endif // __INCLUDED_RENDER_PARTICLESYSTEM_H__