text: // 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_ROTATION_AFFECTOR_H_INCLUDED__
  #define __I_PARTICLE_ROTATION_AFFECTOR_H_INCLUDED__
  
  #include "IParticleAffector.h"
  
  namespace irr
  {
  namespace scene
  {
  
  //! A particle affector which rotates the particle system.
  class IParticleRotationAffector : public IParticleAffector
  {
  public:
  
  	//! Set the point that particles will rotate around
  	virtual void setPivotPoint( const core::vector3df& point ) = 0;
  
  	//! Set the speed in degrees per second in all 3 dimensions
  	virtual void setSpeed( const core::vector3df& speed ) = 0;
  
  	//! Get the point that particles are attracted to
  	virtual const core::vector3df& getPivotPoint() const = 0;
  
  	//! Get the speed in degrees per second in all 3 dimensions
  	virtual const core::vector3df& getSpeed() const = 0;
  
  	//! Get emitter type
  	virtual E_PARTICLE_AFFECTOR_TYPE getType() const _IRR_OVERRIDE_ { return EPAT_ROTATE; }
  };
  
  } // end namespace scene
  } // end namespace irr
  
  
  #endif // __I_PARTICLE_ROTATION_AFFECTOR_H_INCLUDED__
  
  