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105 lines
3.3 KiB
105 lines
3.3 KiB
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield |
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* |
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* This library is open source and may be redistributed and/or modified under |
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or |
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* (at your option) any later version. The full license is in LICENSE file |
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* included with this distribution, and on the openscenegraph.org website. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* OpenSceneGraph Public License for more details. |
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*/ |
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//osgParticle - Copyright (C) 2002 Marco Jez |
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#ifndef OSGPARTICLE_EMITTER |
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#define OSGPARTICLE_EMITTER 1 |
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#include <osgParticle/Export> |
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#include <osgParticle/ParticleProcessor> |
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#include <osgParticle/Particle> |
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#include <osg/Object> |
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#include <osg/Node> |
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#include <osg/NodeVisitor> |
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#include <osg/CopyOp> |
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namespace osgParticle |
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{ |
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/** An abstract base class for particle emitters. |
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Descendant classes must override the <CODE>emitParticles()</CODE> method to generate new particles by |
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calling the <CODE>ParticleSystem::createParticle()</CODE> method on the particle system associated |
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to the emitter. |
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*/ |
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class OSGPARTICLE_EXPORT Emitter: public ParticleProcessor { |
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public: |
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Emitter(); |
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Emitter(const Emitter& copy, const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY); |
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virtual const char* libraryName() const { return "osgParticle"; } |
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virtual const char* className() const { return "Emitter"; } |
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virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast<const Emitter*>(obj) != 0; } |
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virtual void accept(osg::NodeVisitor& nv) { if (nv.validNodeMask(*this)) { nv.pushOntoNodePath(this); nv.apply(*this); nv.popFromNodePath(); } } |
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/// Get the particle template. |
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inline const Particle& getParticleTemplate() const; |
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/// Set the particle template (particle is copied). |
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inline void setParticleTemplate(const Particle& p); |
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/// Return whether the particle system's default template should be used. |
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inline bool getUseDefaultTemplate() const; |
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/** Set whether the default particle template should be used. |
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When this flag is true, the particle template is ignored, and the |
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particle system's default template is used instead. |
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*/ |
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inline void setUseDefaultTemplate(bool v); |
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protected: |
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virtual ~Emitter() {} |
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Emitter& operator=(const Emitter&) { return *this; } |
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inline void process(double dt); |
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virtual void emitParticles(double dt) = 0; |
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bool _usedeftemp; |
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Particle _ptemp; |
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}; |
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// INLINE FUNCTIONS |
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inline const Particle& Emitter::getParticleTemplate() const |
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{ |
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return _ptemp; |
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} |
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inline void Emitter::setParticleTemplate(const Particle& p) |
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{ |
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_ptemp = p; |
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_usedeftemp = false; |
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} |
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inline bool Emitter::getUseDefaultTemplate() const |
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{ |
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return _usedeftemp; |
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} |
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inline void Emitter::setUseDefaultTemplate(bool v) |
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{ |
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_usedeftemp = v; |
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} |
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inline void Emitter::process(double dt) |
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{ |
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emitParticles(dt); |
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} |
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} |
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#endif |
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