You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
2.4 KiB
80 lines
2.4 KiB
/* -*-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_VARIABLERATE_COUNTER
|
|
#define OSGPARTICLE_VARIABLERATE_COUNTER 1
|
|
|
|
#include <osgParticle/Counter>
|
|
#include <osgParticle/range>
|
|
|
|
#include <osg/CopyOp>
|
|
#include <osg/Object>
|
|
|
|
namespace osgParticle
|
|
{
|
|
|
|
class VariableRateCounter: public Counter {
|
|
public:
|
|
inline VariableRateCounter();
|
|
inline VariableRateCounter(const VariableRateCounter& copy, const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY);
|
|
|
|
virtual const char* libraryName() const { return "osgParticle"; }
|
|
virtual const char* className() const { return "VariableRateCounter"; }
|
|
virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast<const VariableRateCounter *>(obj) != 0; }
|
|
|
|
inline const rangef& getRateRange() const;
|
|
inline void setRateRange(const rangef& r);
|
|
inline void setRateRange(float minrange, float maxrange);
|
|
|
|
virtual int getEstimatedMaxNumOfParticles(double lifeTime) const { return static_cast<int>(_rate_range.maximum * lifeTime); }
|
|
|
|
protected:
|
|
virtual ~VariableRateCounter() {}
|
|
|
|
private:
|
|
rangef _rate_range;
|
|
};
|
|
|
|
// INLINE FUNCTIONS
|
|
|
|
inline VariableRateCounter::VariableRateCounter()
|
|
: Counter(), _rate_range(1, 1)
|
|
{
|
|
}
|
|
|
|
inline VariableRateCounter::VariableRateCounter(const VariableRateCounter& copy, const osg::CopyOp& copyop)
|
|
: Counter(copy, copyop), _rate_range(copy._rate_range)
|
|
{
|
|
}
|
|
|
|
inline const rangef &VariableRateCounter::getRateRange() const
|
|
{
|
|
return _rate_range;
|
|
}
|
|
|
|
inline void VariableRateCounter::setRateRange(const rangef& r)
|
|
{
|
|
_rate_range = r;
|
|
}
|
|
|
|
inline void VariableRateCounter::setRateRange(float minrange, float maxrange)
|
|
{
|
|
_rate_range.set(minrange, maxrange);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
#endif
|