// Copyright (C) 2002-2007 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h

#ifndef __I_PARTICLE_ATTRACTION_AFFECTOR_H_INCLUDED__
#define __I_PARTICLE_ATTRACTION_AFFECTOR_H_INCLUDED__

#include "IParticleAffector.h"

namespace irr
{
namespace scene
{

//! A particle affector modifies particles.
class IParticleAttractionAffector : public IParticleAffector
{
public:

	//! Affects an array of particles.
	//! \param now: Current time. (Same as ITimer::getTime() would return)
	//! \param particlearray: Array of particles.
	//! \param count: Amount of particles in array.
	virtual void affect(u32 now, SParticle* particlearray, u32 count) = 0;

	//! Set the point that particles will attract to
	virtual void setPoint( core::vector3df point ) = 0;

	//! Set whether or not the particles are attracting or detracting
	virtual void setAttract( bool attract ) = 0;

	//! Set whether or not this will affect particles in the X direction
	virtual void setAffectX( bool affect ) = 0;
	
	//! Set whether or not this will affect particles in the Y direction
	virtual void setAffectY( bool affect ) = 0;
	
	//! Set whether or not this will affect particles in the Z direction
	virtual void setAffectZ( bool affect ) = 0;

	//! Get the point that particles are attracted to
	virtual const core::vector3df& getPoint() const = 0;

	//! Get whether or not the particles are attracting or detracting
	virtual const bool& getAttract() const = 0;

	//! Get whether or not the particles X position are affected
	virtual const bool& getAffectX() const = 0;

	//! Get whether or not the particles Y position are affected
	virtual const bool& getAffectY() const = 0;

	//! Get whether or not the particles Z position are affected
	virtual const bool& getAffectZ() const = 0;
};

} // end namespace scene
} // end namespace irr


#endif // __I_PARTICLE_ATTRACTION_AFFECTOR_H_INCLUDED__

