using the accelerometer for moving multiple UIImages at once?

Hi everyone.

I am trying to move 10 balls at once using the accelerometer. They would all start in different places, set in interface builder.

I can move one easily but run into trouble when I try and make more than one move at the same time.

I am assuming it is possible as I think I have seen this sort of think in apps (not sure though.)

anyone know if it is possible and the best way to go about achieving this??
thanks
Moomy

 

Code:

-(void)awakeFromNib {
[[UIAccelerometer sharedAccelerometer] setUpdateInterval:1.0/30.0];
[[UIAccelerometer sharedAccelerometer] setDelegate:self];
}

- (void)accelerometerUIAccelerometer *)accelerometer didAccelerateUIAcceleration *)acceleration {
valueX = acceleration.x*30.0;
valueY = acceleration.y*30.0;

int newX = (int)(ball.center.x +valueX);
if (newX > 320-BALL_RADIUS)
newX = 320-BALL_RADIUS;
if (newX < 0+BALL_RADIUS)
newX = 0+BALL_RADIUS;

int newY = (int)(ball.center.y -valueY);
if (newY > 460-BALL_RADIUS)
newY = 460-BALL_RADIUS;
if (newY < 0+BALL_RADIUS)
newY = 0+BALL_RADIUS;

CGPoint newCenter = CGPointMake(newX, newY);

ball.center = newCenter; 
[self checkCollision];
}

-(void)checkCollision{


if(fabs(self.ball.center.x - self.plug.center.x)<self.plug.frame.size.width/2.0 && fabs(self.plug.center.y - self.ball.center.y)<10.0) {
[ball removeFromSuperview];	

}	

this is my code to make one ball move. It's a very simple way to do it. I think I may have to look into more complex ways to do things to get more balls moving. Will have a look at cocoa2d.