I'll probably figure this out by myself by the time someone responds, but it never hurts to ask, i'm trying to figure out how to do a Asteroids style ship movement. So, it's not like it only moves when you tell it to, but the momentum stays and the ship keeps moving. Right now, the ship moves according to it's rotation angle, and the speed changes with the spacebar, but, for one thing, if you change direction, it goes that way. I want it to keep going the direction it was going until you hit the spacebar and change direction. Am I making any sense? And also, I want it to change depending on which direction your facing. So, if you're going up, and then you turn around and turn on the engines, you should start going that way. Sorry, I didn't explain that very well, but just play asteroids online and you'll know what I mean.