Example: Before and After Events

Connect a gamepad to the computer, then press the Start and Select buttons and see the numbers update below.

This is achieved using the .before() and .after() event handlers. And it can be really convenient in many situations: setting up timers, mimic a single press instead of a continuous one, etc.

How it works

The .before() and .after() methods work in a similar way to how .on() does:

gamepad.before(EVENTNAME, CALLBACK);
gamepad.on(EVENTNAME, CALLBACK);
gamepad.after(EVENTNAME, CALLBACK);

These methods can be chained to allow a more fluid development. So the example above could also be written as:

gamepad.before(EVENTNAME, CALLBACK);
       .on(EVENTNAME, CALLBACK);
       .after(EVENTNAME, CALLBACK);