In my top down game, on performing a certain animation my player sprite (blue circle) slides across the screen 1000 pixels at player.angle.
I would like the (brown) trail sprite (frame) which is 1000 pixels in length to be revealed as the player moves during the animation.
I can pin the trail sprite to the player sprite and have an animation with a large number of frames but it isn't smooth. I'm sure there is a more efficient way of "unmasking" the single trail sprite frame.
Any suggestions appreciated.
<img src="http://i.imgur.com/24wr0Di.png" border="0" />