//C++ header - Open Scene Graph - Copyright (C) 1998-2002 Robert Osfield
//Distributed under the terms of the GNU Library General Public License (LGPL)
//as published by the Free Software Foundation.
//osgParticle - Copyright (C) 2002 Marco Jez

#ifndef OSGPARTICLE_POINTPLACER_
#define OSGPARTICLE_POINTPLACER_ 1

#include <osgParticle/CenteredPlacer>
#include <osgParticle/Particle>

#include <osg/CopyOp>
#include <osg/Object>

namespace osgParticle
{

    /**    A point-shaped particle placer.
        This placer class uses the center point defined in its base class <CODE>CenteredPlacer</CODE>
        to place there all incoming particles.
    */
    class PointPlacer: public CenteredPlacer {
    public:
        inline PointPlacer();
        inline PointPlacer(const PointPlacer &copy, const osg::CopyOp &copyop = osg::CopyOp::SHALLOW_COPY);

        META_Object(osgParticle, PointPlacer);
        
        /** Place a particle. 
            This method is called automatically by <CODE>ModularEmitter</CODE> and should not be called
            manually.
        */
        inline void place(Particle *P) const;

    protected:
        virtual ~PointPlacer() {}
        PointPlacer &operator=(const PointPlacer &) { return *this; }        
    };

    // INLINE FUNCTIONS
    
    inline PointPlacer::PointPlacer()
    : CenteredPlacer()
    {
    }
    
    inline PointPlacer::PointPlacer(const PointPlacer &copy, const osg::CopyOp &copyop)
    : CenteredPlacer(copy, copyop)
    {
    }

    inline void PointPlacer::place(Particle *P) const
    {
        P->setPosition(getCenter());
    }


}


#endif