FGFS-4.1/OpenSceneGraph
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Added < and > key bindings to allow the speed to be animation speed to be increased or decreased.

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Robert Osfield
2008-03-23 18:28:49 +00:00
parent 6e7a1608df
commit df74f3ba8a
1 changed files with 32 additions and 0 deletions
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32
src/osgGA/AnimationPathManipulator.cpp
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@@ -85,12 +85,42 @@ bool AnimationPathManipulator::handle(const osgGA::GUIEventAdapter& ea,osgGA::GU
if (ea.getKey()==' ')
{
_isPaused = false;
_timeScale = 1.0;
home(ea,us);
us.requestRedraw();
us.requestContinuousUpdate(false);
return true;
}
else if (ea.getKey()=='>')
{
double time = _isPaused ? _pauseTime : ea.getTime();
double animationTime = (time+_timeOffset)*_timeScale;
_timeScale *= 1.1;
osg::notify(osg::NOTICE)<<"Animation speed = "<<_timeScale*100<<"%"<<std::endl;
// adjust timeOffset so the current animationTime does change.
_timeOffset = animationTime/_timeScale - time;
return true;
}
else if (ea.getKey()=='<')
{
double time = _isPaused ? _pauseTime : ea.getTime();
double animationTime = (time+_timeOffset)*_timeScale;
_timeScale /= 1.1;
osg::notify(osg::NOTICE)<<"Animation speed = "<<_timeScale*100<<"%"<<std::endl;
// adjust timeOffset so the current animationTime does change.
_timeOffset = animationTime/_timeScale - time;
return true;
}
else if(ea.getKey() == 'p')
{
if( _isPaused )
@@ -119,6 +149,8 @@ void AnimationPathManipulator::getUsage(osg::ApplicationUsage& usage) const
{
usage.addKeyboardMouseBinding("AnimationPath: Space","Reset the viewing position to start of animation");
usage.addKeyboardMouseBinding("AnimationPath: p","Pause/resume animation.");
usage.addKeyboardMouseBinding("AnimationPath: <","Slow down animation speed.");
usage.addKeyboardMouseBinding("AnimationPath: <","Speed up animation speed.");
}
void AnimationPathManipulator::handleFrame( double time )