98 lines
2.8 KiB
Plaintext
98 lines
2.8 KiB
Plaintext
//C++ header - Open Scene Graph - Copyright (C) 1998-2002 Robert Osfield
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//Distributed under the terms of the GNU Library General Public License (LGPL)
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//as published by the Free Software Foundation.
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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>emit()</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 ©, const osg::CopyOp ©op = 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) { 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 emit(double dt) = 0;
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private:
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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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emit(dt);
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}
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}
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#endif
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