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// Copyright (C) 2002-2012 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_GRAVITY_AFFECTOR_H_INCLUDED__
#define __I_PARTICLE_GRAVITY_AFFECTOR_H_INCLUDED__
#include "IParticleAffector.h"
namespace irr
{
namespace scene
{
//! A particle affector which applies gravity to particles.
class IParticleGravityAffector : public IParticleAffector
{
public:
//! Set the time in milliseconds when the gravity force is totally lost
/** At that point the particle does not move any more. */
virtual void setTimeForceLost( f32 timeForceLost ) = 0;
//! Set the direction and force of gravity in all 3 dimensions.
virtual void setGravity( const core::vector3df& gravity ) = 0;
//! Get the time in milliseconds when the gravity force is totally lost
virtual f32 getTimeForceLost() const = 0;
//! Get the direction and force of gravity.
virtual const core::vector3df& getGravity() const = 0;
//! Get emitter type
virtual E_PARTICLE_AFFECTOR_TYPE getType() const { return EPAT_GRAVITY; }
};
} // end namespace scene
} // end namespace irr
#endif // __I_PARTICLE_GRAVITY_AFFECTOR_H_INCLUDED__
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