gistfile1.m

-(void) update_:(ccTime)dt {
	int direction = 1; // the score can roll in either direction
	if (self.score < curScore_) {
		direction = -1;
	}
	double pointChange = self.pointsPerSecond * direction * dt;
	curScore_ += pointChange;
	
	// don't let it overrun the target
	if (direction == -1 && curScore_ < self.score) {
		curScore_ = self.score;
	} else if (direction == 1 && curScore_ > self.score) {
		curScore_ = self.score;
	}
	
	// update the string
	// this is as costly as creating a new label
	// we should be using cclabelatlas
	[self setString:[NSString stringWithFormat:self.formatString, (int)curScore_]]; 
	
	// if we are at the score then stop updating
	if (self.score == curScore_) {
		[self unschedule:@selector(update_:)];
		updating_ = FALSE;
		return;
	}
}