libopenscenegraph-3.4-dev 3.4.0+dfsg1-4+b3 / usr / include / osgParticle / ModularEmitter

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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 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.
*/
//osgParticle - Copyright (C) 2002 Marco Jez

#ifndef OSGPARTICLE_MODULAREMITTER
#define OSGPARTICLE_MODULAREMITTER 1

#include <osgParticle/Export>
#include <osgParticle/Emitter>
#include <osgParticle/Particle>
#include <osgParticle/RandomRateCounter>
#include <osgParticle/Placer>
#include <osgParticle/PointPlacer>
#include <osgParticle/Shooter>
#include <osgParticle/RadialShooter>
#include <osgParticle/ParticleSystem>

#include <osg/ref_ptr>
#include <osg/CopyOp>
#include <osg/Object>
#include <osg/Node>
#include <osg/NodeVisitor>

namespace osgParticle
{

    /**    An emitter class that holds three objects to control the creation of particles.
        These objects are a <I>counter</I>, a <I>placer</I> and a <I>shooter</I>.
        The counter controls the number of particles to be emitted at each frame;
        the placer must initialize the particle's position vector, while the shooter initializes
        its velocity vector.
        You can use the predefined counter/placer/shooter classes, or you can create your own.
    */
    class OSGPARTICLE_EXPORT ModularEmitter: public Emitter {
    public:
        ModularEmitter();
        ModularEmitter(const ModularEmitter& copy, const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY);

        META_Node(osgParticle,ModularEmitter);

        /// Get the counter object.
        inline Counter* getCounter();

        /// Get the const Counter object.
        inline const Counter* getCounter() const;

        /// Set the Counter object.
        inline void setCounter(Counter* c);

        /// Get the ratio between number of particle to create in compensation for movement of the emitter
        inline float getNumParticlesToCreateMovementCompensationRatio() const;

        /// Set the ratio between number of particle to create in compenstation for movement of the emitter
        inline void setNumParticlesToCreateMovementCompensationRatio(float r);


        /// Get the Placer object.
        inline Placer* getPlacer();

        /// Get the const Placer object.
        inline const Placer* getPlacer() const;

        /// Set the Placer object.
        inline void setPlacer(Placer* p);

        /// Get the Shooter object.
        inline Shooter *getShooter();

        /// Get the const Shooter object.
        inline const Shooter *getShooter() const;

        /// Set the Shooter object.
        inline void setShooter(Shooter *s);

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

        virtual void emitParticles(double dt);

    private:

        float _numParticleToCreateMovementCompensationRatio;
        osg::ref_ptr<Counter> _counter;
        osg::ref_ptr<Placer> _placer;
        osg::ref_ptr<Shooter> _shooter;
    };

    // INLINE FUNCTIONS

    inline Counter* ModularEmitter::getCounter()
    {
        return _counter.get();
    }

    inline const Counter* ModularEmitter::getCounter() const
    {
        return _counter.get();
    }

    inline void ModularEmitter::setCounter(Counter* c)
    {
        _counter = c;
    }

    inline float ModularEmitter::getNumParticlesToCreateMovementCompensationRatio() const
    {
        return _numParticleToCreateMovementCompensationRatio;
    }

    inline void ModularEmitter::setNumParticlesToCreateMovementCompensationRatio(float r)
    {
        _numParticleToCreateMovementCompensationRatio = r;
    }

    inline Placer* ModularEmitter::getPlacer()
    {
        return _placer.get();
    }

    inline const Placer* ModularEmitter::getPlacer() const
    {
        return _placer.get();
    }

    inline void ModularEmitter::setPlacer(Placer* p)
    {
        _placer = p;
    }

    inline Shooter *ModularEmitter::getShooter()
    {
        return _shooter.get();
    }

    inline const Shooter *ModularEmitter::getShooter() const
    {
        return _shooter.get();
    }

    inline void ModularEmitter::setShooter(Shooter *s)
    {
        _shooter = s;
    }

}

#endif

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