138 lines
4.2 KiB
C++
138 lines
4.2 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 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_PARTICLESYSTEMUPDATER_
|
|
#define OSGPARTICLE_PARTICLESYSTEMUPDATER_ 1
|
|
|
|
#include <osgParticle/Export>
|
|
#include <osgParticle/ParticleSystem>
|
|
|
|
#include <vector>
|
|
|
|
#include <osg/ref_ptr>
|
|
#include <osg/CopyOp>
|
|
#include <osg/Object>
|
|
#include <osg/Node>
|
|
#include <osg/NodeVisitor>
|
|
|
|
#include <osgUtil/CullVisitor>
|
|
|
|
namespace osgParticle
|
|
{
|
|
|
|
/** A useful node class for updating particle systems automatically.
|
|
When a <CODE>ParticleSystemUpdater</CODE> is traversed by a cull visitor, it calls the
|
|
<CODE>update()</CODE> method on the specified particle systems. You should place this updater
|
|
<U>AFTER</U> other nodes like emitters and programs.
|
|
*/
|
|
class OSGPARTICLE_EXPORT ParticleSystemUpdater: public osg::Node {
|
|
public:
|
|
ParticleSystemUpdater();
|
|
ParticleSystemUpdater(const ParticleSystemUpdater ©, const osg::CopyOp ©op = osg::CopyOp::SHALLOW_COPY);
|
|
|
|
META_Node(osgParticle,ParticleSystemUpdater);
|
|
|
|
/// Return the number of particle systems on the list.
|
|
inline int numParticleSystems() const;
|
|
|
|
/// Add a particle system to the list.
|
|
inline void addParticleSystem(ParticleSystem *ps);
|
|
|
|
/// Get a const particle system from the list.
|
|
inline const ParticleSystem *getParticleSystem(int i) const;
|
|
|
|
/// Get a particle system from the list.
|
|
inline ParticleSystem *getParticleSystem(int i);
|
|
|
|
/// Find a particle system.
|
|
inline int findParticleSystem(ParticleSystem *ps) const;
|
|
|
|
/// Remove a particle system from the list (by index).
|
|
inline void removeParticleSystem(int i);
|
|
|
|
/// Remove a particle system from the list (by pointer).
|
|
inline bool removeParticleSystem(ParticleSystem *ps);
|
|
|
|
virtual void traverse(osg::NodeVisitor &nv);
|
|
|
|
protected:
|
|
virtual ~ParticleSystemUpdater() {}
|
|
ParticleSystemUpdater &operator=(const ParticleSystemUpdater &) { return *this; }
|
|
|
|
inline virtual bool computeBound() const;
|
|
|
|
private:
|
|
typedef std::vector<osg::ref_ptr<ParticleSystem> > ParticleSystem_Vector;
|
|
|
|
ParticleSystem_Vector psv_;
|
|
double t0_;
|
|
};
|
|
|
|
// INLINE FUNCTIONS
|
|
|
|
inline bool ParticleSystemUpdater::computeBound() const
|
|
{
|
|
_bsphere.init();
|
|
_bsphere_computed = true;
|
|
return true;
|
|
}
|
|
|
|
inline int ParticleSystemUpdater::numParticleSystems() const
|
|
{
|
|
return static_cast<int>(psv_.size());
|
|
}
|
|
|
|
inline void ParticleSystemUpdater::addParticleSystem(ParticleSystem *ps)
|
|
{
|
|
psv_.push_back(ps);
|
|
}
|
|
|
|
inline const ParticleSystem *ParticleSystemUpdater::getParticleSystem(int i) const
|
|
{
|
|
return psv_[i].get();
|
|
}
|
|
|
|
inline ParticleSystem *ParticleSystemUpdater::getParticleSystem(int i)
|
|
{
|
|
return psv_[i].get();
|
|
}
|
|
|
|
inline void ParticleSystemUpdater::removeParticleSystem(int i)
|
|
{
|
|
psv_.erase(psv_.begin()+i);
|
|
}
|
|
|
|
inline int ParticleSystemUpdater::findParticleSystem(ParticleSystem *ps) const
|
|
{
|
|
ParticleSystem_Vector::const_iterator i;
|
|
int j = 0;
|
|
for (i=psv_.begin(); i!=psv_.end(); ++i, ++j) {
|
|
if (i->get() == ps) return j;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
inline bool ParticleSystemUpdater::removeParticleSystem(ParticleSystem *ps)
|
|
{
|
|
int i = findParticleSystem(ps);
|
|
if (i == -1) return false;
|
|
removeParticleSystem(i);
|
|
return true;
|
|
}
|
|
|
|
|
|
}
|
|
|
|
#endif
|