[open] Timed loops

Comments

• sebastiaan

  April 2013 edited 8:50AM

  Hi Benjamin,

  The easiest way to accomplish this is by using the 'Break if' statement, which is under 'Show advanced options' in the loop item. For example, the following 'Break if' statement aborts the loop 10 seconds after start time (which you need to set, see below):

  =self.time() - self.get('start_time') > 10000
  

  This is a Python-style conditional statement, as described here:

  • http://osdoc.cogsci.nl/usage/variables-and-conditional-qifq-statements/#using-conditionals

  Of course, to make this work, you also need to set the variable start_time. You can do this with a simple inline_script, which you can insert (typically) just before the block_loop:

  exp.set('start_time', self.time())
  

  Hope this helps!

  Cheers,
  Sebastiaan

  
  
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• Koba

  April 2013 edited 8:50AM

  Hi Sebastiaan,

  'Break if' statement could abort the loop 10 seconds after start time, as in your example. In this case, the timing to abort the loop is before going into the next loop. In my case, I want to abort the loop after a certain period of time, even if it is running the current loop. Is it possible to do so? How can I do to force-quit the sequences after a certain period of time?

  Thanks in advance.
• sebastiaan

  April 2013 edited 8:50AM

  Hi Koba,

  How can I do to force-quit the sequences after a certain period of time?

  This is not really possible. What you can do to accomplish this to some extent is use Run if statements for all items in the sequence, so that these items are skipped when the time period has expired. Something like: =self.time() - self.get('start_time') <= 10000.

  However, this would not halt execution while an item is running (for example while a keyboard_response item is waiting for a response). To accomplish this, you would really need to write an inline script that continuously checks whether the time period has expired, and halts when this happens. Does that make sense?

  Cheers,
  Sebastiaan

  
  
  Check out SigmundAI.eu for our OpenSesame AI assistant!
  
• Benno

  April 2013 edited 8:50AM

  Thanks, this was exactly what I was looking for.
• Koba

  April 2013 edited April 2013

  Thank you for your quick response.
  I can see your point. Indeed this doesn't sit well with me, but it looks difficult for me to write an incline script that continuously checks the time...

  And, Thank you very much for Runtime for Android. Looking forward to activating the synth and sampler sampler item.

  Kind regards,
  Koba