OpenSceneGraph/include/osgAnimation/Channel

146 lines
4.7 KiB
C++

/* -*-c++-*-
* Copyright (C) 2008 Cedric Pinson <mornifle@plopbyte.net>
*
* 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.
*/
#ifndef OSGANIMATION_CHANNEL_H
#define OSGANIMATION_CHANNEL_H
#include <osgAnimation/Export>
#include <osgAnimation/Sampler>
#include <osgAnimation/Target>
#include <osg/Referenced>
#include <string>
namespace osgAnimation
{
class OSGANIMATION_EXPORT Channel : public osg::Referenced
{
public:
Channel();
Channel(const Channel& channel);
virtual ~Channel();
virtual Channel* clone() const = 0;
virtual void update(float time) = 0;
virtual void reset() = 0;
virtual Target* getTarget() = 0;
const std::string& getName() const;
void setName(const std::string& name);
virtual float getStartTime() const = 0;
virtual float getEndTime() const = 0;
const std::string& getTargetName() const;
void setTargetName(const std::string& name);
float getWeight() const;
void setWeight(float w);
virtual Sampler* getSampler() = 0;
virtual const Sampler* getSampler() const = 0;
protected:
std::string _targetName;
std::string _name;
float _weight;
};
template <typename SamplerType>
class TemplateChannel : public Channel
{
public:
typedef typename SamplerType::UsingType UsingType;
typedef TemplateTarget<UsingType> TargetType;
typedef TemplateKeyframeContainer<typename SamplerType::KeyframeType> KeyframeContainerType;
Channel* clone() const { return new TemplateChannel<SamplerType>(*this); }
TemplateChannel (const TemplateChannel& channel) :
Channel(channel),
_target(new TargetType),
_sampler(channel._sampler.get())
{
}
TemplateChannel (SamplerType* s = 0,TargetType* target = 0)
{
if (target)
_target = target;
else
_target = new TargetType;
_sampler = s;
}
virtual ~TemplateChannel() {}
virtual void update(float time)
{
// skip if weight == 0
if (_weight < 1e-4)
return;
typename SamplerType::UsingType value;
_sampler->getValueAt(time, value);
_target->update(_weight, value);
}
virtual void reset() { _target->reset(); }
virtual Target* getTarget() { return _target.get();}
SamplerType* getOrCreateSampler()
{
if (!_sampler.valid())
_sampler = new SamplerType;
return _sampler.get();
}
Sampler* getSampler() { return _sampler.get(); }
const Sampler* getSampler() const { return _sampler.get(); }
SamplerType* getSamplerTyped() { return _sampler.get();}
const SamplerType* getSamplerTyped() const { return _sampler.get();}
void setSampler(SamplerType* sampler) { _sampler = sampler; }
TargetType* getTargetTyped() { return _target.get(); }
void setTarget(TargetType* target) { _target = target; }
virtual float getStartTime() const { return _sampler->getStartTime(); }
virtual float getEndTime() const { return _sampler->getEndTime(); }
protected:
osg::ref_ptr<TargetType> _target;
osg::ref_ptr<SamplerType> _sampler;
};
typedef std::vector<osg::ref_ptr<osgAnimation::Channel> > ChannelList;
typedef TemplateChannel<DoubleLinearSampler> DoubleLinearChannel;
typedef TemplateChannel<FloatLinearSampler> FloatLinearChannel;
typedef TemplateChannel<Vec2LinearSampler> Vec2LinearChannel;
typedef TemplateChannel<Vec3LinearSampler> Vec3LinearChannel;
typedef TemplateChannel<Vec4LinearSampler> Vec4LinearChannel;
typedef TemplateChannel<QuatSphericalLinearSampler> QuatSphericalLinearChannel;
typedef TemplateChannel<FloatCubicBezierSampler> FloatCubicBezierChannel;
typedef TemplateChannel<DoubleCubicBezierSampler> DoubleCubicBezierChannel;
typedef TemplateChannel<Vec2CubicBezierSampler> Vec2CubicBezierChannel;
typedef TemplateChannel<Vec3CubicBezierSampler> Vec3CubicBezierChannel;
typedef TemplateChannel<Vec4CubicBezierSampler> Vec4CubicBezierChannel;
}
#endif