From Wang Rui, added osgParticle serializers

src/osgWrappers/serializers/osgParticle/ParticleSystemUpdater.cpp

@@ -0,0 +1,41 @@
+#include <osgParticle/ParticleSystemUpdater>
+#include <osgDB/ObjectWrapper>
+#include <osgDB/InputStream>
+#include <osgDB/OutputStream>
+
+static bool checkParticleSystems( const osgParticle::ParticleSystemUpdater& updater )
+{
+    return updater.getNumParticleSystems()>0;
+}
+
+static bool readParticleSystems( osgDB::InputStream& is, osgParticle::ParticleSystemUpdater& updater )
+{
+    unsigned int size = 0; is >> size >> osgDB::BEGIN_BRACKET;
+    for ( unsigned int i=0; i<size; ++i )
+    {
+        osgParticle::ParticleSystem* ps = dynamic_cast<osgParticle::ParticleSystem*>( is.readObject() );
+        if ( ps ) updater.addParticleSystem( ps );
+    }
+    is >> osgDB::END_BRACKET;
+    return true;
+}
+
+static bool writeParticleSystems( osgDB::OutputStream& os, const osgParticle::ParticleSystemUpdater& updater )
+{
+    unsigned int size = updater.getNumParticleSystems();
+    os << size << osgDB::BEGIN_BRACKET << std::endl;
+    for ( unsigned int i=0; i<size; ++i )
+    {
+        os << updater.getParticleSystem(i);
+    }
+    os << osgDB::END_BRACKET << std::endl;
+    return true;
+}
+
+REGISTER_OBJECT_WRAPPER( osgParticleParticleSystemUpdater,
+                         new osgParticle::ParticleSystemUpdater,
+                         osgParticle::ParticleSystemUpdater,
+                         "osg::Object osg::Node osgParticle::ParticleSystemUpdater" )
+{
+    ADD_USER_SERIALIZER( ParticleSystems );  // _psv
+}