149 lines
4.9 KiB
C++
149 lines
4.9 KiB
C++
/* -*-c++-*-
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* Copyright (C) 2009 Cedric Pinson <cedric.pinson@plopbyte.net>
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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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#ifndef OSGANIMATION_ACTION_H
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#define OSGANIMATION_ACTION_H
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#include <osgAnimation/Export>
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#include <osgAnimation/Animation>
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#include <osgAnimation/ActionVisitor>
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#include <osgAnimation/FrameAction>
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#include <iostream>
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#define META_Action(library,name) \
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virtual osg::Object* cloneType() const { return new name (); } \
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virtual osg::Object* clone(const osg::CopyOp& copyop) const { return new name (*this,copyop); } \
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virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast<const name *>(obj)!=NULL; } \
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virtual const char* className() const { return #name; } \
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virtual const char* libraryName() const { return #library; } \
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virtual void accept(osgAnimation::ActionVisitor& nv) { nv.apply(*this); } \
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namespace osgAnimation
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{
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class OSGANIMATION_EXPORT Action : public osg::Object
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{
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public:
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class Callback : public osg::Object
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{
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public:
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Callback(){}
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Callback(const Callback& nc,const osg::CopyOp& copyop) :
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osg::Object(nc, copyop),
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_nestedCallback(nc._nestedCallback) {}
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META_Object(osgAnimation,Callback);
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virtual void operator()(Action* /*action*/, osgAnimation::ActionVisitor* /*nv*/) {}
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Callback* getNestedCallback() { return _nestedCallback.get(); }
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void addNestedCallback(Callback* callback)
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{
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if (callback) {
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if (_nestedCallback.valid())
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_nestedCallback->addNestedCallback(callback);
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else
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_nestedCallback = callback;
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}
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}
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void removeCallback(Callback* cb)
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{
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if (!cb)
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return;
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if (_nestedCallback.get() == cb)
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_nestedCallback = _nestedCallback->getNestedCallback();
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else if (_nestedCallback.valid())
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_nestedCallback->removeCallback(cb);
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}
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protected:
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osg::ref_ptr<Callback> _nestedCallback;
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};
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typedef std::map<unsigned int, osg::ref_ptr<Callback> > FrameCallback;
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META_Action(osgAnimation, Action);
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Action();
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Action(const Action&,const osg::CopyOp&);
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void setCallback(double when, Callback* callback)
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{
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setCallback(static_cast<unsigned int>(floor(when*_fps)), callback);
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}
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void setCallback(unsigned int frame, Callback* callback)
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{
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if (_framesCallback[frame].valid())
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_framesCallback[frame]->addNestedCallback(callback);
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else
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_framesCallback[frame] = callback;
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}
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Callback* getCallback(unsigned int frame)
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{
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if (_framesCallback.find(frame) == _framesCallback.end())
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return 0;
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return _framesCallback[frame].get();
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}
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void removeCallback(Callback*);
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Callback* getFrameCallback(unsigned int frame);
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Callback* getFrameCallback(double time);
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unsigned int getFramesPerSecond() const { return _fps; }
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void setNumFrames(unsigned int numFrames) { _numberFrame = numFrames;}
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void setDuration(double duration) { _numberFrame = static_cast<unsigned int>(floor(duration * _fps)); }
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unsigned int getNumFrames() const { return _numberFrame;}
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double getDuration() const { return _numberFrame * 1.0 / _fps; }
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// 0 means infinite else it's the number of loop
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virtual void setLoop(unsigned int nb) { _loop = nb; }
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virtual unsigned int getLoop() const { return _loop;}
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// get the number of loop, the frame relative to loop.
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// return true if in range, and false if out of range.
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bool evaluateFrame(unsigned int frame, unsigned int& resultframe, unsigned int& nbloop );
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virtual void traverse(ActionVisitor& /*visitor*/) {}
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//virtual void evaluate(unsigned int frame);
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protected:
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FrameCallback _framesCallback;
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double _speed;
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unsigned int _fps;
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unsigned int _numberFrame;
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unsigned int _loop;
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enum Status
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{
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Play,
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Stop
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};
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Status _state;
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};
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}
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#endif
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