[Flash 8] Alpha Trail

[javiersaldana]

I posted this in the Games forum but maybe it should be here, so;

Hello,

I'm trying to make a game where the character does this move kind of like sonic's "dash"/"boost"? thing;
That move, where when you press a button, sonic starts rolling, and when you release it, sonic runs off as fast as hell.

You know what I'm talking about right?

Anyway,
so far I've come up with this:

//Boost?
function CallBoost() {
		if (Boost == true) {
			if (rolling == false) {
				_x+=50;
			}
		} else {
			//if not rolling..
			if (Key.isDown(83)) {
				//if 'S' is pressed
				rolling = true;
				Boost = true;
			}
		}
	}
//Boost?End

or something like that.

I have a listener to detect when the 'S' key is released, (rolling = false),
so what I want to do is, when the 'S' key is released, the character keeps the rolling animation but moving to the right (slow>very fast>fast>slow>stop), leaving an alpha trail.

Any ideas on how to do this?

Thanks,
-javier

Tha'ts about it,
-javier