How do I make a double click event?

I am creating a fighting game and I want to know how I can trigger a dash animation once you double click one of the keys.

I want to do it with my keyboard not the mouse

>

I want to do it with my keyboard not the mouse

on (KEY) pressed

--+is timer "dashwindow" running?

----> Dash

--+else

---->start timer "dashwindow" for 1 second

dashwindow can be adjusted to whatever you want

Or use a variable instead of Timer:

Variable lastKeyPress=0

On key pressed: 
...If (time-lastKeyPress)<0.6 // double click
.......Set lastKeyPress=0

...Else // single click 
.......Set lastKeyPress=time