WorldViz User Forum - random walk in piazza environment

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random walk in piazza environment

hi,

I would like to generate a random walk actions for the avatar in the piazza environment. I want the avatar to walk around the environment by itself (without pressing any key) and to perform some actions when it sees a red sphere.

I have tried to write some code, but the avatar is moving around an oval. I am really stuck .. I don't know how to do it.

this is the code:

Code:

import viz

import viztask

import vizact

viz.go()



viz.add('ground.osgb')

avatar = viz.addAvatar('vcc_male2.cfg',pos=[0,0,9])

avatar.state(1)



walkLeft = vizact.walkTo([2.5,0,9])

walkRight = vizact.walkTo([-2.5,0,9])

walkActions = viz.cycle([walkLeft,walkRight])



waitSpaceBar = viztask.waitKeyDown(' ')

waitLeft = viztask.waitActionEnd(avatar,walkLeft)

waitRight = viztask.waitActionEnd(avatar,walkRight)

waitActions = viz.cycle([waitLeft,waitRight])



def walkAndStopTask():

        yield waitSpaceBar

        while True:

                condition = waitSpaceBar

                walkAction = walkActions.next()

                waitAction = waitActions.next()

                while condition == waitSpaceBar:

                        avatar.runAction(walkAction)

                        d = yield viztask.waitAny([waitSpaceBar,waitAction])

                        condition = d.condition

                        if condition == waitSpaceBar:

                                avatar.clearActions()

                                yield waitSpaceBar

                        

viztask.schedule(walkAndStopTask())

your support is highly appreciated

I have posted the wrong code. so plz ignore it. below is the right code.

I managed to simulate an avatar walking randomly. however, I wanted the avatar to pick up the cellphone when he reaches the red sphere. I have the code for that but I did not know how to do it in a simulated way (without pressing any key)

this is the code that I am working on:

Code:

import viz

import viznet

import vizinfo

import vizinput

import viztask

import vizact

import vizshape

import vizproximity

import vizmat

viz.go()



viz.go()

viz.MainView.setPosition([0,0.1,0])

viz.setMultiSample(4)

#Increase the Field of View

viz.MainWindow.fov(60)



#avatarRoot = viz.addGroup()

avatarRoot = viz.add('marker.wrl')

cameraLookAtNode = viz.addGroup(parent=avatarRoot, pos=[0, 1.5, 0])

avatar = viz.add('vcc_male.cfg', parent=avatarRoot)

#avatar.state(1)

#viz.collision(viz.ON)







piazza = viz.add('piazza.osgb')

sphere = vizshape.addSphere(radius=0.2)

sphere.setPosition(0,0,20)

sphere.color(viz.RED)



text = viz.addText('radiation source',parent=sphere)

text.setPosition([-0.3,0.3,0])

text.setScale([0.2]*3)

text.color(viz.RED)

text.visible(viz.ON)



text_2D = viz.addText('radiation source area', viz.SCREEN )

text_2D.setPosition(0,0,20)

text_2D.color(viz.RED)

t=text_2D.visible(viz.OFF)



tex = viz.addTexture('logo.jpg')









#maze = viz.add('tankmaze.wrl')

#def onKeyDown(key): 

     #if key == viz.iskeydown ('t' ):

walk1=vizact.walkTo([4,0,0])

walk2=vizact.walkTo([4,0,3])

walk3=vizact.walkTo([7,0,4])



walk4=vizact.walkTo([8.5,0,17])

walk5=vizact.walkTo([10,0,22])

walk6=vizact.walkTo([3,0,23])



#walk=vizact.walkTo([0,0,15])



def changeState() :

    

    #Add the cellphone model

    cell = viz.addChild('phone.3ds')



    #Get the right hand bone of the avatar

    hand = avatar.getBone('Bip01 R Hand')



    #Link the cellphone to the hand

    CellLink = viz.link(hand,cell)



    #Tweek the cellphone link so it fits snuggly in the hand

    CellLink.preTrans( [0.06,-0.08,0.08] )

    CellLink.preEuler( [0,0,180] )

#thick = vizact.method()



walks=vizact.sequence(walk1,walk2, vizact.waittime(1),walk3, vizact.waittime(1),walk4, vizact.waittime(1),walk5,vizact.waittime(1),walk6)

viz.collision(viz.ON)



avatar.addAction(walks)







    #Make the avatar use the cellphone when the 'w' key is pressed

#vizact.onkeydown('w',avatar.execute,15)



#vizact.onkeydown('t',walk)



#Register the callback which to call the 'onKeyDown' function. 

#viz.callback(viz.KEYDOWN_EVENT,onKeyDown) 

        







#Create proximity manager

manager = vizproximity.Manager()



#Add main viewpoint as proximity target

target = vizproximity.Target(avatar)

manager.addTarget(target)



sensor = vizproximity.Sensor( vizproximity.CircleArea(5),source=sphere)



manager.addSensor(sensor)



def EnterProximity(e):

    text_2D.visible(viz.ON)

    quad = viz.addTexQuad()

    quad.setPosition([0,1,20])

    quad.texture(tex) # The quad will now display the tree picture

    spin=vizact.sequence(vizact.waittime(1), vizact.spin(0,1,0,20))

    vizact.addCallback

    quad.addAction(spin)



    

def ExitProximity(e):

    text_2D.visible(viz.OFF)

    



manager.onEnter(sensor,EnterProximity)

manager.onExit(sensor,ExitProximity)

Simply add

Code:

avatar.execute(15)

to the EnterProximity function. Now, your avatar will execute its 15th animation (in your case the useitem animation) when it nears the red sphere.

thanks it worked.

I have another question.

I replaced the avatar with the steve module and I added the move to action to the module, but I got this error:

player_matrix.aaddAction(walks)
AttributeError: 'Transform' object has no attribute 'addAction'

how can I simulate the movement of the steve as I did with the avatar in the code provided above?

thanks.

You cannot add an action to a matrix. You can add an action to an avatar. Look carefully how you named the 3D-model of steve, and add the action to that model. That should solve your problem.

And there was a type in your addaction command, it was spelled aaddaction.

thanks it worked. however, I want to c what the steve module sees infront of him (what he is looking at).

I want it to be in this way as reflected in the upper right view:
this is the code:

Code:

import viz

import viznet

import vizinfo

import vizinput

import viztask

import vizact

import vizshape

import vizproximity

import vizmat

import steve



viz.setMultiSample(4)

viz.fov(60)

viz.go()



# Use the steve module to represent the other user.

# You will actually have no representation of yourself on your own monitor.

player_matrix = viz.Matrix()

avatar = steve.Steve()

avatar.setTracker(player_matrix)



# Add the world

maze = viz.addChild('piazza.osgb')



#Use a prompt to ask the user the network name of the other computer.

target_machine = vizinput.input('Enter the name of the other machine').upper()



#Add a mailbox from which to send messages. This is your outbox.

target_mailbox = viz.addNetwork(target_machine) 



def sendPosition():



     #Retrieve current transform of viewpoint

     mat = viz.MainView.getMatrix()



     #Send position/rotation to target network object

     target_mailbox.send(action=updatePlayer, quat=mat.getQuat(), pos=mat.getPosition())



# Start a timer that sends out data over the network every frame

vizact.ontimer(0,sendPosition)



def updatePlayer(e):

     player_matrix.setPosition(e.pos)

     player_matrix.setQuat(e.quat)



# Listens for any incomming messages

def onNetwork(e):

     if e.sender.upper() == target_machine:

         e.action(e)



# Register network to listen from incomming messages

viz.callback(viz.NETWORK_EVENT, onNetwork)



# Create a new window in the upper left corner

UpperLeftWindow = viz.addWindow(pos=(0,1.0),size=(0.5,0.5))

UpperLeftWindow.visible(0,viz.SCREEN)



#Create a new window in the upper right corner

UpperRightWindow = viz.addWindow(pos=(0.5,1.0),size=(0.5,0.5))

UpperRightWindow.visible(0,viz.SCREEN)



# Create a new viewpoint

BirdView = viz.addView()



#Attach the bird's eye view to the upper left window

UpperLeftWindow.setView(BirdView)



#Move the view above the center of the room

BirdView.setPosition([0,25,0])



#Rotate the view so that it looks down

BirdView.setEuler([0,90,0])



#Create another viewpoint

RearView = viz.addView()



#Attach the rear view to the upper right window

UpperRightWindow.setView(RearView)



#Increase the field-of-view for both windows

UpperLeftWindow.fov(70)

UpperRightWindow.fov(60)



#Add an arrow marker to bird's eye view window to represent our current position/orientation

arrow = viz.addTexQuad(parent=viz.ORTHO,scene=UpperLeftWindow,size=20)

arrow.texture(viz.add('arrow.tif'))



def UpdateViews():



        #Get the current head orientation and position

        yaw,pitch,roll = player_matrix.getEuler()

        pos = player_matrix.getPosition()



        #Move the rear view to the current position

        RearView.setPosition(pos)



        #Rotate the rear view so that it faces behind us

        RearView.setEuler([yaw,0,0])



        #Move arrow to our current location

        x,y,z = UpperLeftWindow.worldToScreen(pos,mode=viz.WINDOW_PIXELS)

        arrow.setPosition([x,y,0])

        arrow.setEuler([0,0,-yaw])



vizact.ontimer(0,UpdateViews)



# Turn on collision detection so we can't go through walls

#viz.collision(viz.ON)

walk1=vizact.moveTo([4,0,0])



walk2=vizact.moveTo([4,0,3])

walk3=vizact.moveTo([7,0,4])



walk4=vizact.moveTo([8.5,0,17])

walk5=vizact.moveTo([10,0,22])

walk6=vizact.moveTo([3,0,23])

walks=vizact.sequence(walk1,walk2, vizact.waittime(1),walk3, vizact.waittime(1),walk4, vizact.waittime(1),walk5,vizact.waittime(1),walk6)

#avatar.addAction(walks)





#avatar.addAction(vizact.walkTo([0,0,7]))

btw, I commented the "add action" .
thanx

Not sure if this will work, but you could try:

Code:

viz.link(player_matrix, RearView)

it did not work.

what is happening know is that the movement of the steve module is linked with the mainview. so, when I move the mouse, the representation of the steve module moves as well.

basically what I want is to make the movement of Steve in a random way instead linking it with a mouse. this is done by the moveTo action. but, I want the user feel as if he is the one who is moving. I want the metal head cover to appear in the to right screen as it is the case for the mouse movement.

I hope it is clear.

thanx.