WorldViz User Forum - Wait for function to return?

WorldViz User Forum (https://forum.worldviz.com/index.php)

- Vizard (https://forum.worldviz.com/forumdisplay.php?f=17)

- - Wait for function to return? (https://forum.worldviz.com/showthread.php?t=2686)

Josh	04-14-2010 01:03 PM

Wait for function to return?

Hi all

I want to stop the execution of my script until a function returns.

The idea is to stop the script when starting a task, where the user has to press a key (P), and as soon as he presses the key, the script should continue.

Code:

class Experiment:



        # This method is called somewhere...

        def start_green_face_task(self):

                self.avatar_to_morph().make_green_face()

                self.test_reaction_time() # Here the code should stop until this method returns (when the user presses P)! But how can this be achieved?

                self.end_green_face_task() # This method should be called *after* the user presses P!

                

        def test_reaction_time(self):

                while True:

                        yield self.viztask.waitKeyDown('P', d)

                        return

                

        def end_green_face_task(self):

                self.avatar_to_morph().remove_green_face()

Sadly I don't get it to work... I tried stuff like

yield self.test_reaction_time()

or

self.viztask.schedule(self.test_reaction_time())

but somehow this doesn't do what I need...

Thanks very much for help!
Josh

Josh	04-15-2010 06:11 AM

Please, this is very important for me... Anyone??

Josh	04-15-2010 12:43 PM

*Push* (I'm sorry, but it's very important that I get this to work asap)

IGoudt

04-15-2010 01:45 PM

Exactly *what* does not work? On which line does the program do other than you expect it to do?
Following changes might not work, but at least it should call test_reaction_time() correctly. Issue is that end_green_face_task() will run at the same time (I think). You can move that method call to test_reaction_time() as well, but why do you need a viztask for a key event? You can also register the P button with the function end_green_face_task()

Code:

class Experiment:



        # This method is called somewhere...

        def start_green_face_task(self):

                self.avatar_to_morph().make_green_face()

                viztask.schedule(self.test_reaction_time()) # Here the code should stop until this method returns (when the user presses P)! But how can this be achieved?

                self.end_green_face_task() # This method should be called *after* the user presses P!

                

        def test_reaction_time(self):

                yield viztask.waitKeyDown('P')

                

                

        def end_green_face_task(self):

                self.avatar_to_morph().remove_green_face()

farshizzo

04-15-2010 02:11 PM

I believe the following code should do what you want:

Code:

class Experiment:



        # This method is called somewhere...

        def start_green_face_task(self):

                viztask.schedule( self.test_reaction_time() )

                

        def test_reaction_time(self):

                self.avatar_to_morph().make_green_face()

                yield viztask.waitKeyDown('P') # Here the code should stop until this method returns (when the user presses P)! But how can this be achieved?

                self.end_green_face_task() # This method should be called *after* the user presses P!

                

        def end_green_face_task(self):

                self.avatar_to_morph().remove_green_face()

All times are GMT -7. The time now is 09:21 PM.