[solved] set duration as either mouseclick or keypress

ezerkar

Is there a way to set the duration of a sketchpad as either keypress or mouseclick whichever comes first?

Thanks in advance
Ezer

sebastiaan

Hi Ezerkar,

Thank you for your interest in OpenSesame!

No, there's no way to do that through the GUI, but you can set the duration to '0' and add a simple inline_script after the sketchpad:

# Import and create mouse and keyboard objects
from openexp.keyboard import keyboard
from openexp.mouse import mouse
my_keyboard = keyboard(self.experiment, timeout=5)
my_mouse = mouse(self.experiment, timeout=5)

# Wait until a key has been pressed or button has been clicked
start_time = self.time()
while True:
    resp, time = my_keyboard.get_key()
    if resp != None:
        resp = my_keyboard.to_chr(resp)
        break       
    resp, pos, time = my_mouse.get_click()
    if resp != None:
        break
        
# Store the response
self.experiment.set("response", resp) 
self.experiment.set("response_time", time-start_time)

For more information, see

• http://osdoc.cogsci.nl/python-inline-code/keyboard-functions

• http://osdoc.cogsci.nl/python-inline-code/mouse-functions

Hope this helps!

Regards,
Sebastiaan

ezerkar

Thanks, that helps a lot.

Ezer

DahmSF

Very helpful answer. Thanks too.

One more detail:
If I only want certain keypresses, lets say F, G,H, and J, plus any mouse clicks, where do i insert this?

like that?
resp, time = my_keyboard.get_key(f;g;h;j)

eduard

Hi,

The general procedure is explain here and here

If you want to use both, mouse and keyboard responses, you should sample responses in a loop, e.g. like so:

kb = keyboard(keylist=['j', 'f','g', 'h'], timeout=20)
# have a low timeout, so that the experiment will not freeze in anticipation for a keyboard response)
ms = mouse(timeout = 20)

t0 = clock.time()
while clock.time()-t0 < 5000: # have 5 seconds as response time limit to avoid infinite loops and such
    key, time = kb.get_key()
    if key != None:
        break
    button, position, timestamp = my_mouse.get_click()
    if button is not None:
        break

I hope this helps.

Eduard