80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
/* -*-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_VARIABLERATE_COUNTER
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#define OSGPARTICLE_VARIABLERATE_COUNTER 1
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#include <osgParticle/Counter>
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#include <osgParticle/range>
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#include <osg/CopyOp>
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#include <osg/Object>
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namespace osgParticle
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{
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class VariableRateCounter: public Counter {
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public:
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inline VariableRateCounter();
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inline VariableRateCounter(const VariableRateCounter& 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 "VariableRateCounter"; }
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virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast<const VariableRateCounter *>(obj) != 0; }
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inline const rangef& getRateRange() const;
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inline void setRateRange(const rangef& r);
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inline void setRateRange(float minrange, float maxrange);
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virtual int getEstimatedMaxNumOfParticles(double lifeTime) const { return static_cast<int>(_rate_range.maximum * lifeTime); }
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protected:
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virtual ~VariableRateCounter() {}
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private:
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rangef _rate_range;
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};
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// INLINE FUNCTIONS
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inline VariableRateCounter::VariableRateCounter()
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: Counter(), _rate_range(1, 1)
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{
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}
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inline VariableRateCounter::VariableRateCounter(const VariableRateCounter& copy, const osg::CopyOp& copyop)
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: Counter(copy, copyop), _rate_range(copy._rate_range)
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{
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}
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inline const rangef &VariableRateCounter::getRateRange() const
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{
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return _rate_range;
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}
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inline void VariableRateCounter::setRateRange(const rangef& r)
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{
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_rate_range = r;
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}
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inline void VariableRateCounter::setRateRange(float minrange, float maxrange)
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{
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_rate_range.set(minrange, maxrange);
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}
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}
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#endif
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