#!/usr/bin/python

from initosg import *


def build_root():
	global osgParticle
	global osg
	root = osg.Group()
	ps = osgParticle.ParticleSystem()
	ps.setDefaultAttributes("", True, False)
	emiter = osgParticle.ModularEmitter()
	emiter.setParticleSystem(ps)
	emiter.getCounter().setRateRange(20,30)
	root.addChild(emiter)
	geode = osg.Geode()
	geode.addDrawable(ps)
	root.addChild(geode)	
	psu = osgParticle.ParticleSystemUpdater()
	psu.addParticleSystem(ps)
	root.addChild(psu)
	return root



# Load wrappers
osg = loadWrapper("osg")
osgViewer = loadWrapper("osgViewer")
osgGA = loadWrapper("osgGA")
osgText = loadWrapper("osgText")
osgParticle = loadWrapper("osgParticle")

# Load The scene
root = build_root()

# Init the viewer
viewer = osgViewer.Viewer()
viewer.setSceneData(root)

# Run...
viewer.run()