src/animationmanager.cpp

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/***************************************************************************
 *   Copyright (C) 2007 by                                                 *
 *         Pierre-yves JEZEQUEL, Julien MICHOT, Loic MOISAN,               *
 *         Julien PAPILLON, Sebastien PINEAUD, Barthelemy SERRES           *
 *                                                                         *
 *   https://sourceforge.net/projects/anidam                               *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program 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         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#include "animationmanager.h"

animationManager::animationManager()
{
}


animationManager::~animationManager()
{
}

osg::AnimationPath* animationManager::createAnimationPath(osg::Vec3 animCenter, float roll, float radius, double looptime)
{
        osg::AnimationPath * animationPath = new osg::AnimationPath();
        animationPath->setLoopMode(osg::AnimationPath::LOOP);
        int numSamples = 40;
        float yaw = 0.0f;
        float yaw_delta = 2.0f*osg::PI/((float)numSamples -1.0f);
        double time = 0.0f;
        double time_delta = looptime/((double) numSamples);
    
        for(int i =0; i<numSamples;++i)
        {
                osg::Vec3 position = animCenter+osg::Vec3(sinf(yaw)*radius,cosf(yaw)*radius,0.0f);
                osg::Quat rotation = osg::Quat(roll, osg::Vec3(0,1,0))*osg::Quat(-(yaw+osg::PI/2.),osg::Vec3(0,0,1));
                
                animationPath->insert(time,osg::AnimationPath::ControlPoint(position,rotation));

                yaw+=yaw_delta;
                time+=time_delta;

        }

        return animationPath;
}

osg::Node * animationManager::revoluteNode(osg::Node * node,osg::Vec3 animCenter,float roll, float radius, double looptime)
{
        osg::AnimationPath * animationPath = animationManager::createAnimationPath(animCenter,roll,radius,looptime);

        
        //osg::Geode * cubeGeode = new osg::Geode;
        //osg::Box * cube = new osg::Box(osg::Vec3(0,0,0),10,20,30);

        //osg::ShapeDrawable *shape = new osg::ShapeDrawable(cube);
        osg::PositionAttitudeTransform * pat = new osg::PositionAttitudeTransform();
        pat->setUpdateCallback(new osg::AnimationPathCallback(animationPath,0,1));
        //cubeGeode->addDrawable(shape);
        
        pat->addChild(node);

        /*
        osg::Geode * cubeGeode = new osg::Geode;
        osg::Box * cube = new osg::Box(osg::Vec3(0,0,0),10,20,30);

        osg::ShapeDrawable *shape = new osg::ShapeDrawable(cube);
        osg::PositionAttitudeTransform * pat = new osg::PositionAttitudeTransform();
        pat->setUpdateCallback(new osg::AnimationPathCallback(animationPath,0,1));
        cubeGeode->addDrawable(shape);
        
        
        pat->addChild(cubeGeode);
        pat->addChild(node);*/

        return pat;
        
        
}

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