Hello, I’m trying to build a video game to measure the rhythm accuracy of a player. The program should display rhythms, the player has to play them in sync with a metronome. I’ve been trying to build a sketch that would play a “tick” to give the tempo. I’ve tried different strategies for it but I …

Don’t use delay(). It is not the function you want. It does not do what you think it does. Do not feel bad - so many people have run into this issue. So many. :tired_face: Instead, use millis(). It gives you the number of milliseconds that have elapsed since the sketch started. You can use this to …

Hey TfGuy44, Thanks for your help ! This is what I tried to do at first, my problem with this method is that it’s related to draw() function, and this appears to be quite unstable. For example, when printing time in the console, the beat seems to vary from 2 to 40 ms on my computer… int time; voi…

println() is very slow! Don’t rely on the values it prints out to give you a good indication of how often the tick is triggering. You can check the value of millis() anywhere - in keyPressed() to know when a key was pressed, in draw() to know i it’s time to draw a tick… or in a timer() function tha…

That’s really interesting, thank you ! Didn’t know println was slow, I thought it was a good way to get feedback even for timing purposes. I’ll know better next time :wink: I’ve been struggling with this for a long time, so thank you very much, I’ll try this !

As an alternative to millis(), there’s this library I’ve made which is a wrapper for Java’s Timer class: [image] Array and object moving and not moving Coding Questions Coding Questions Here’s an example which displays a blue background() for 5 seconds, followed by a red …

If you want a metronome implementation in a timer library, you may also be interested in checking out the code of this timing library: [image] dhchoi/processing-countdowntimer CountdownTimer Library for Processing. Contribute to dhchoi/processing-countdowntimer development by creating an …

Thank you, I will try this :slight_smile:

Whoah that’s great ! It seems to do exactly what I’m looking for. Thanks a lot !

Issues creating a metronome

Processing

GoToLoop June 9, 2018, 9:52pm 6

As an alternative to millis(), there’s this library I’ve made which is a wrapper for Java’s Timer class:

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Issues creating a metronome

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