How do you implement this without a for loop?

AFL Programming
1 
buyLimit = Close[0] + 2.0;
for(i=0; i<BarCount; i++) {
	if(Close[i] > buyLimit) {
		Buy[i] = sigScaleIn;
		buyLimit += 2.0;
	}
}
3

I forgot to add the description: The goal is to buy more whenever the price has risen by 2 points.