Jeff I tried with many ways; below is my modification but does not work
HTML Code:
import viz
viz.go()
viz.phys.enable()
court= viz.add( 'court.ive' )
court.setPosition(0,0,15)
viz.collision()
balloon=viz.add('balloon.ive')
balloon.setScale(7,7,7)
balloon.setPosition(0,0,8)
avatar=viz.add('vcc_female.cfg')
walk_Forward = vizact.walkTo([0,0,20])
avatar.addAction(walk_Forward)
balloon.collideMesh()
avatar.disable(viz.DYNAMICS)
balloon.disable(viz.DYNAMICS)
Thanks Jeff,