WorldViz User Forum

Here is a sample script that waits for the left mouse button to be clicked then moves a ball while printing out the current time in milliseconds and its current position. Let me know if anything is unclear.

Code:

import viz

viz.go()



START_POS = [-4,2,10]

STOP_POS = [4,2,10]



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

ball.translate(START_POS)



def RecordTimer():

        """Prints out current time in milliseconds followed by ball position"""

        currentTime = viz.tick()

        pos = ball.getPosition()

        print '%d %.4f %.4f %.4f'%(currentTime * 1000,pos[0],pos[1],pos[2])



import viztask



def RunSimulation():

        

        #Repeat simulation indefinitely

        while True:

                

                #Wait for left mouse button to be pressed

                yield viztask.waitMouseDown(viz.MOUSEBUTTON_LEFT)

                

                #Place ball in starting position

                ball.translate(START_POS)

                

                #Start timer to record ball position

                recordTimer = vizact.onupdate(0,RecordTimer)

                

                #Wait for ball to finish move action

                yield viztask.runAction(ball,vizact.moveTo(STOP_POS,speed=2))

                

                #Stop timer

                vizact.removeEvent(recordTimer)

        

viztask.schedule( RunSimulation() )



#Disable mouse navigation

viz.mouse(0)