posted 10 July 2008 02:09            

I wanted to set up two different buttons that could be used to turn a toggle on and off, and found setReset:, which does exactly that.

To make it a little more complicated, I wanted to have the toggle turn on on every third tap of the button that sets the toggle. The reset button works still on every tap. This is that expression:

((!Increment countTriggersMod: 3) eq: 2) setReset: !Decrement

[the !Increment and !Decrement should be set as buttons in the VCS].

So far so good.

The only problem with this solution is that I prefer that the !Increment button require three taps in a row, in a relatively short amount of time, meaning that if it is tapped twice and then 10 seconds passes, it should require three taps again to make the toggle go on, and also that if the !Decrement button is tapped after the !Increment button has been tapped once or twice, that the Increment button should then be reset to require 3 taps again.

It seems like this would be somewhat related to my recent question about resetting a countTriggers expression, but the problem is also a little different here.

For a little background as to why I want to do this, I want to have a button that serves as a tap tempo for a bpm: expression (where the !Increment is in the current expression - the new tempo is set on the third tap), and then another button that serves to jump to an alternative tempo whenever that button is pressed.

Thanks for whatever help you can give - this is giving me a headache right now!

posted 10 July 2008 19:53            

code:

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((!Increment countTriggersMod: 3) eq: 2) setReset: !Decrement

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"The only problem with this solution is that I prefer that the !Increment button require three taps in a row, in a relatively short amount of time, meaning that if it is tapped twice and then 10 seconds passes, it should require three taps again to make the toggle go on, and also "

Maybe the Reset value could be !Decrement OR <!Increment hasn't changed in 10 seconds>

code:

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!Decrement + (1 - (!Increment hasChangedInLast: 10 s)))

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"and also that if the !Decrement button is tapped after the !Increment button has been tapped once or twice, that the Increment button should then be reset to require 3 taps again."

Would the logic be something like this?

OR (!Increment countTriggersMod: 3) LessThanOrEqualTo 2 AND !Decrement

code:

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!Decrement + (((!Increment countTriggersMod: 3) le: 2) * !Decrement)

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posted 11 July 2008 01:48            

quote:

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Originally posted by SSC:

code:

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!Decrement + (((!Increment countTriggersMod: 3) le: 2) * !Decrement)

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Thanks - this doesn't quite work as I would like.

The full expression I think you are suggesting I think is:

code:

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((!Increment countTriggersMod: 3) eq: 2) setReset: (!Decrement + (((!Increment countTriggersMod: 3) le: 2) * !Decrement))

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With this code, I get almost the behavior I want, but if I click !Decrement, I only have to click !Increment twice before the entire expression turns positive. I want clicking !Decrement to reset the count so that I need to click three times before the expression = 1.

I'm sure the hasChangedInLast expression will work fine.

I still wish that countTriggers and countTriggersMod: would have a reset: component, which, after a positive number is sent to reset, would cause the count to go to zero on the next trigger...

That said, I'm sure there is a way to do this with the current count expressions, it just might be a bit complicated.

best,
Phil

posted 12 July 2008 01:50            

code:

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(((!TriggerCount + !Reset) countTriggersMod: 4 * (1-!Reset)) eq: 3) setReset: !Reset

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The only glitch is that the first time after compiling, the !TriggerCount (what I was previously calling !Increment) needs to be triggered 4 times before the expression becomes 1. This is due to the countTriggersMod expression starting at -1 before any triggers have been received.

What would be a good way to trigger the count (ie bring the count up to 0) upon launching?

posted 12 July 2008 14:44            

code:

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|initializeCount|
initializeCount := 1 - (1 ramp).
(((initializeCount + !TriggerCount + !Reset) countTriggersMod: 4 * (1-!Reset)) eq: 3) setReset: !Reset

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The expression equals 1 when !TriggerCount has been triggered 3 times, and goes to 0 when the !Reset is triggered.

Here's the code adding the timing feature. After 4 seconds, if 3 taps on !TriggerCount has not been completed, the count resets itself and it will need 3 new taps to set the toggle:

code:

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|initializeCount timeOut count|
initializeCount := 1 - (1 ramp).
timeOut := !TriggerCount hasChangedInLast: 4 s.
count :=  (initializeCount + !TriggerCount + !Reset + (1-((1-timeOut) ramp: 0.1 s))) countTriggersMod: (4 * (1-!Reset) * timeOut).
(count eq: 3) setReset: !Reset

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