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147 lines
4.8 KiB
147 lines
4.8 KiB
/* -*-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&) : |
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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 infini 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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