virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
{
if (nv && nv->getVisitorType() == osg::NodeVisitor::UPDATE_VISITOR)
{
if (_releaseKey) // we hit a key and release it execute an action
{
osgAnimation::Timeline* tml = _manager->getTimeline();
// dont play if already playing
if (!tml->isActive(_scratchNose.get()))
{
// add this animation on top of two other
// we add one to evaluate the animation at the next frame, else we
// will miss the current frame
tml->addActionAt(tml->getCurrentFrame() + 1, _scratchNose.get(), 2);
}
_releaseKey = false;
}
}
else
{
osgGA::EventVisitor* ev = dynamic_cast<osgGA::EventVisitor*>(nv);
if (ev && ev->getActionAdapter() && !ev->getEvents().empty())
{
for(osgGA::EventQueue::Events::iterator itr = ev->getEvents().begin();
itr != ev->getEvents().end();
++itr)
{
handleWithCheckAgainstIgnoreHandledEventsMask(*(*itr), *(ev->getActionAdapter()), node, nv);
}
}
}
traverse(node, nv);
}
ExampleTimelineUsage(osgAnimation::TimelineAnimationManager* manager)
{
_releaseKey = false;
_manager = manager;
const osgAnimation::AnimationList& list = _manager->getAnimationList();
osgAnimation::AnimationMap map;
for (osgAnimation::AnimationList::const_iterator it = list.begin(); it != list.end(); it++)
map[(*it)->getName()] = *it;
_mainLoop = new osgAnimation::ActionStripAnimation(map["Idle_Main"].get(),0.0,0.0);
_mainLoop->setLoop(0); // means forever
_scratchHead = new osgAnimation::ActionStripAnimation(map["Idle_Head_Scratch.02"].get(),0.2,0.3);
_scratchHead->setLoop(1); // one time
map["Idle_Nose_Scratch.01"]->setDuration(10.0); // set this animation duration to 10 seconds
_scratchNose = new osgAnimation::ActionStripAnimation(map["Idle_Nose_Scratch.01"].get(),0.2,0.3);
_scratchNose->setLoop(1); // one time
// add the main loop at priority 0 at time 0.
osgAnimation::Timeline* tml = _manager->getTimeline();
tml->play();
tml->addActionAt(0.0, _mainLoop.get(), 0);
// add a scratch head priority 1 at 3.0 second.
tml->addActionAt(5.0, _scratchHead.get(), 1);
// populate time with scratch head
for (int i = 1; i < 20; i++)
{
// we add a scratch head priority 1 each 10 second
// note:
// it's possible to add the same instance more then once on the timeline
// the only things you need to take care is if you remove it. It will remove
// all instance that exist on the timeline. If you need to differtiate
// it's better to create a new instance
tml->addActionAt(5.0 + 10.0 * i, _scratchHead.get(), 1);
}
// we will add the scratch nose action only when the player hit a key
// in the operator()
// now we will add callback at end and begin of animation of Idle_Nose_Scratch.02
_scratchNose->setCallback(0.0, new NoseBegin);
_scratchNose->setCallback(_scratchNose->getNumFrames()-1, new NoseEnd);
}