[osg-users] Problem with animation in .osgb files

[Maxim Voloshin]

Hi, everyone

I am new in OSG and have a problem. I wrote the code that plays animation in 
.fbx models, but I can't play animation in .osgb(.osgt, .ive) models. Please 
see the attached file and help me.

P.S. Sorry for the clumsy English(

Thank you!

Cheers,
Maxim Voloshin

------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=56536#56536




#include "stdafx.h"
#include <osgAnimation/BasicAnimationManager>
#include <osgViewer/Viewer>
#include <osgDB/ConvertUTF>
#include <osgDB/ReadFile> 
#include <osg/Node>

#define KEY_Space 0x20

struct AnimationManagerFinder : public osg::NodeVisitor
{
    osg::ref_ptr<osgAnimation::BasicAnimationManager> _am;
    
    AnimationManagerFinder() 
        {
                setTraversalMode(osg::NodeVisitor::TRAVERSE_ACTIVE_CHILDREN);
        }
    
    void apply(osg::Node& node)
        {
        if (_am.valid()) return;
    
        if (node.getUpdateCallback())
                {        
            _am = 
dynamic_cast<osgAnimation::BasicAnimationManager*>(node.getUpdateCallback());
            return;
        }
        
        traverse(node);
    }
};


class myKeyboardEventHandler : public osgGA::GUIEventHandler
{
 public:
        osg::Group *e_root;

    virtual bool handle(const osgGA::GUIEventAdapter& ea, 
osgGA::GUIActionAdapter&);
    virtual void accept(osgGA::GUIEventHandlerVisitor& v)  
                {
                        v.visit(*this);
                };
};

void play(osg::Group *root)
{
                AnimationManagerFinder finder;
                root->accept(finder); 

                const osgAnimation::AnimationList& animations = 
finder._am->getAnimationList();
                animations[0]->setPlayMode(osgAnimation::Animation::STAY);

                finder._am->playAnimation(animations[0].get());
                std::cout << "name is: " << animations[0]->getName() << 
std::endl;
}

bool myKeyboardEventHandler::handle(const osgGA::GUIEventAdapter& ea, 
osgGA::GUIActionAdapter& aa)
    {
    switch(ea.getEventType())
    {
                case(osgGA::GUIEventAdapter::KEYDOWN):
                        {
                                switch(ea.getKey())
                                {
                                        case KEY_Space:
                                                std::cout << "Animation 
started, ";
                                                play(e_root);
                                                return false;
                                                break;
                                        default:
                                                return false;
                                } 
                        }
    default:
        return false;
    }
}

void _tmain(int argc, _TCHAR* argv[])
{
                osg::Node *node = NULL;
                node = 
osgDB::readNodeFile(osgDB::convertStringFromCurrentCodePageToUTF8("C:/Straight_AB.osgb"));

                osg::Group* root = new osg::Group();
                root->addChild(node); 

        osgViewer::Viewer viewer;
                viewer.setUpViewInWindow(32, 32, 512, 512);
                viewer.setSceneData(root);

                myKeyboardEventHandler *myFirstEventHandler = new 
myKeyboardEventHandler();
                myFirstEventHandler->e_root = root;
        viewer.addEventHandler(myFirstEventHandler); 
                
                viewer.run();
}
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