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1// Copyright (C) 2002-2012 Nikolaus Gebhardt
2// This file is part of the "Irrlicht Engine".
3// For conditions of distribution and use, see copyright notice in irrlicht.h
4
5#ifndef __I_PARTICLE_GRAVITY_AFFECTOR_H_INCLUDED__
6#define __I_PARTICLE_GRAVITY_AFFECTOR_H_INCLUDED__
7
8#include "IParticleAffector.h"
9
10namespace irr
11{
12namespace scene
13{
14
15//! A particle affector which applies gravity to particles.
16class IParticleGravityAffector : public IParticleAffector
17{
18public:
19
20 //! Set the time in milliseconds when the gravity force is totally lost
21 /** At that point the particle does not move any more. */
22 virtual void setTimeForceLost( f32 timeForceLost ) = 0;
23
24 //! Set the direction and force of gravity in all 3 dimensions.
25 virtual void setGravity( const core::vector3df& gravity ) = 0;
26
27 //! Get the time in milliseconds when the gravity force is totally lost
28 virtual f32 getTimeForceLost() const = 0;
29
30 //! Get the direction and force of gravity.
31 virtual const core::vector3df& getGravity() const = 0;
32
33 //! Get emitter type
34 virtual E_PARTICLE_AFFECTOR_TYPE getType() const { return EPAT_GRAVITY; }
35};
36
37} // end namespace scene
38} // end namespace irr
39
40
41#endif // __I_PARTICLE_GRAVITY_AFFECTOR_H_INCLUDED__
42