How the heck do you detect a double key press?

So I'm trying to make a dash by double tapping a key, and my code looks like this:

<img src="http://puu.sh/2MwiB.png" border="0" />

However, it seems to immediately set dash to true, trigger the event that says "if true and if a is pressed" and then set it back to false instantly, setting the dash effect off in the process every time the A key is pressed.

If you put a System -> Wait 0.0 seconds action in your first event, it should prevent that from happening.

Oh..That's weird.

Thanks. It worked. =)

I've struggled with similar issues in the past, so I get that it seems weird. The way to think of it, though, is that the actions are trying to run at the same time. Putting in that wait command effectively forces them to run independently.

At least, that's how I see it. I'm not sure how accurate that really is.