/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2005 Robert Osfield 
 *
 * This library is open source and may be redistributed and/or modified under  
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
 * OpenSceneGraph Public License for more details.
*/

#ifndef OSGPARTICLE_CONNECTEDPARTICLESYSTEM
#define OSGPARTICLE_CONNECTEDPARTICLESYSTEM 1

#include <osgParticle/ParticleSystem>

namespace osgParticle
{

    /** ConnectConnectedParticleSystem is a specialise ConnectedParticleSystem for effects 
      * like missle trails, where the individual particles are rendered as
      * single ribbon. 
    */
    class OSGPARTICLE_EXPORT ConnectedParticleSystem: public osgParticle::ParticleSystem
    {
    public:
    
        ConnectedParticleSystem();
        ConnectedParticleSystem(const ConnectedParticleSystem& copy, const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY);

        META_Object(osgParticle, ConnectedParticleSystem);
        
        /// Create a new particle from the specified template (or the default one if <CODE>ptemplate</CODE> is null).
        virtual Particle* createParticle(const Particle* ptemplate);
        
        /// Destroy the i-th particle.
        virtual void destroyParticle(int i);
        
        /// Update the particles. Don't call this directly, use a <CODE>ConnectedParticleSystemUpdater</CODE> instead.
        virtual void update(double dt);

        virtual void drawImplementation(osg::State& state) const;

    protected:

        virtual ~ConnectedParticleSystem();

        ConnectedParticleSystem& operator=(const ConnectedParticleSystem&) { return *this; }

        Particle* _startParticle;
        Particle* _lastParticleCreated;
    };

}

#endif