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Index › Programming Questions & Help › Syntax Questions › time between events

nkelly16 YaBB Newbies Offline Posts: 15	time between events Nov 27th, 2007, 4:50am   hi, I'm looking to find a way of printing the time elapsed between two successive interactive events, eg. keys being pressed. However, I have no idea where to even start. Any pointers would be greatly appreciated. Thanks.

antiplastik YaBB Moderator Offline Posts: 699 France	Re: time between events Reply #1 - Nov 27th, 2007, 6:17am   Hi. See the millis() method reference : http://processing.org/reference/millis_.html Call the method at two different times and make a substraction : you'll get the time ellapsed between the two events. Code: float t1 = millis(); // do stuff... float t2 = millis(); float timeEllapsed = t2 - t1; // time ellapsed in milliseconds

nkelly16 YaBB Newbies Offline Posts: 15	Re: time between events Reply #2 - Nov 27th, 2007, 1:05pm   thanks i'll try that. i had looked at the millis() method but had discarded it, thinking that it would only count from when the applet opened. I didn't think it counted from each time you called it.

JohnG Ex Member	Re: time between events Reply #3 - Nov 27th, 2007, 3:40pm   It does only count millis since the sketch was run, but you can then store the result in an int, and compare the urrent value returned by millis() and your stored value.

nkelly16 YaBB Newbies Offline Posts: 15	Re: time between events Reply #4 - Nov 28th, 2007, 2:06am   ah i get it now. that makes sense. thanks again guys.