WorldViz User Forum - collision with physics enabled

Hi there, I have created a simple scene with physics enabled. In my scene I have a few objects; ball.wrl, blueglass.osg, greenwalls.osg

What I want to do is apply some sort of collision to the scene, so that I am able to walk through ‘blueglass’, but not through ‘greenwall’.

The ‘ball’ object translates with the viewpoint, so it goes wherever I go, that way, when I walk through the blueglass object in the scene, the ball collides with blueglass and triggers an event (in this case it simply prints a message).
I have not been able to find a way to apply collision to ‘greenwall’ to stop me from walking through it – while physics are enabled. :o

Any help would be much appreciated

Code:

import viz

viz.phys.enable()

viz.go()



theview = viz.get(viz.MAIN_VIEWPOINT)

theview.translate(0,1.4,0)

greenwall = viz.add('greenwall.osg')

blueglass = viz.add('blueglass.osg')

ball = viz.add('ball.wrl')

ball.setScale(0.1,0.1,0.1)

ball_Link = viz.link(theview,ball)

ball_Link.preTrans([0,0,2])



greenwall.collideMesh()

greenwall.disable(viz.DYNAMICS)

greenwall.enable(viz.COLLIDE_NOTIFY)

ball.collideMesh()

ball.disable(viz.DYNAMICS)

ball.enable(viz.COLLIDE_NOTIFY)

blueglass.collideMesh()

blueglass.disable(viz.DYNAMICS)

blueglass.enable(viz.COLLIDE_NOTIFY)



MOVE_SPEED = 5

TURN_SPEED = 70



def onCollideBegin(e):

        if e.obj1 == ball and e.obj2 == greenwall:

                print 'ball has hit greenwall'

        if e.obj1 == ball and e.obj2 == blueglass:

                print 'ball has hit blueglass'



def mytimer(num):

        if viz.iskeydown(viz.KEY_UP):

                theview.move(0,0,MOVE_SPEED*viz.elapsed(),viz.BODY_ORI)

        elif viz.iskeydown(viz.KEY_DOWN):

                theview.move(0,0,-MOVE_SPEED*viz.elapsed(),viz.BODY_ORI)

        if viz.iskeydown(viz.KEY_RIGHT):

                theview.rotate(0,1,0,TURN_SPEED*viz.elapsed(),viz.BODY_ORI,viz.RELATIVE_WORLD)

        elif viz.iskeydown(viz.KEY_LEFT):

                theview.rotate(0,1,0,-TURN_SPEED*viz.elapsed(),viz.BODY_ORI,viz.RELATIVE_WORLD)



viz.callback(viz.TIMER_EVENT,mytimer)

viz.starttimer(0,0.01,viz.FOREVER)

viz.callback(viz.COLLIDE_BEGIN_EVENT,onCollideBegin)

viz.clearcolor(viz.WHITE)