//
// Since OpenFlight doesn't have 'Sequence' records---just Group records that
// may, optionally, be animated---this routine sets the animation-related
// parameters for a Group record and simply forwards to writeGroup()
//
void
FltExportVisitor::writeSequence(const osg::Sequence &sequence)
{
int32 flags = 0, loopCount = 0;
float32 loopDuration = 0.0f, lastFrameDuration = 0.0f;
osg::Sequence::LoopMode mode;
int firstChildDisplayed, lastChildDisplayed;
sequence.getInterval(mode, firstChildDisplayed, lastChildDisplayed);
if (firstChildDisplayed == 0)
{
flags |= FORWARD_ANIM;
}
else
{
flags &= ~FORWARD_ANIM;
}
if (mode == osg::Sequence::SWING)
{
flags |= SWING_ANIM;
}
else
{
flags &= ~SWING_ANIM;
}
// Do we loop infinitely, or only a certain number of times?
float speedUp;
int numReps;
sequence.getDuration(speedUp, numReps);
if (numReps != -1)
{
loopCount = numReps;
}
else
{
loopCount = 0; // == loop continuously
}
// Sum individual frame durations to get the total loopDuration
for (unsigned int i = 0; i < sequence.getNumChildren(); ++i)
{
loopDuration += sequence.getTime(i);
}
lastFrameDuration = sequence.getLastFrameTime();
writeGroup(sequence, flags, loopCount, loopDuration, lastFrameDuration);
}
void daeWriter::apply( osg::Sequence &node )
{
debugPrint( node );
updateCurrentDaeNode();
currentNode = daeSafeCast< domNode >(currentNode->add( COLLADA_ELEMENT_NODE ) );
currentNode->setId(getNodeName(node,"sequence").c_str());
// If a sequence node, store it's data as extra "Sequence" data in the "OpenSceneGraph" technique
if (writeExtras)
{
// Adds the following to a node
//<extra type="Sequence">
// <technique profile="OpenSceneGraph">
// <FrameTime>0 0</FrameTime>
// <LastFrameTime>0</LastFrameTime>
// <LoopMode>0</LoopMode>
// <IntervalBegin>0</IntervalBegin>
// <IntervalEnd>-1</IntervalEnd>
// <DurationSpeed>1</DurationSpeed>
// <DurationNReps>-1</DurationNReps>
// <SequenceMode>0</SequenceMode>
// </technique>
//</extra>
domExtra *extra = daeSafeCast<domExtra>(currentNode->add( COLLADA_ELEMENT_EXTRA ));
extra->setType("Sequence");
domTechnique *teq = daeSafeCast<domTechnique>(extra->add( COLLADA_ELEMENT_TECHNIQUE ) );
teq->setProfile( "OpenSceneGraph" );
domAny *frameTime = (domAny*)teq->add("FrameTime");
std::stringstream fw;
for (unsigned int i = 0; i < node.getNumChildren(); i++)
{
if (i > 0)
{
fw << " ";
}
fw << node.getTime(i);
}
frameTime->setValue(fw.str().c_str());
domAny *lastFrameTime = (domAny*)teq->add("LastFrameTime");
lastFrameTime->setValue(toString<double>(node.getLastFrameTime()).c_str());
// loop mode & interval
osg::Sequence::LoopMode mode;
int begin, end;
node.getInterval(mode, begin, end);
domAny *loopMode = (domAny*)teq->add("LoopMode");
loopMode->setValue(toString<osg::Sequence::LoopMode>(mode).c_str());
domAny *intervalBegin = (domAny*)teq->add("IntervalBegin");
intervalBegin->setValue(toString<int>(begin).c_str());
domAny *intervalEnd = (domAny*)teq->add("IntervalEnd");
intervalEnd->setValue(toString<int>(end).c_str());
// duration
float speed;
int nreps;
node.getDuration(speed, nreps);
domAny *durationSpeed = (domAny*)teq->add("DurationSpeed");
durationSpeed->setValue(toString<float>(speed).c_str());
domAny *durationNReps = (domAny*)teq->add("DurationNReps");
durationNReps->setValue(toString<int>(nreps).c_str());
// sequence mode
domAny *sequenceMode = (domAny*)teq->add("SequenceMode");
sequenceMode->setValue(toString<osg::Sequence::SequenceMode>(node.getMode()).c_str());
}
writeNodeExtra(node);
lastDepth = _nodePath.size();
traverse( node );
}