Calypso88

Here's a quick optimization for people making grids of things. The traditional method is a pair of loops, nested to make rows and columns:

const ROWS:int = 30;
const COLUMNS:int = 88;
 
for(var row:int = 0; row < ROWS; row++){
	for(var column:int = 0; column < COLUMNS; column++){
		var s:Shape = new Shape();
		s.x = column * 5;
		s.y = row * 5;
 
		s.graphics.beginFill(0x666666);
		s.graphics.drawRect(0, 0, 4, 4);
		addChild(s);
	}
}

This can be simplified and sped up by taking advantage of the relationship between division and modulus to generate the row and column dynamically:

const ROWS:int = 30;
const COLUMNS:int = 88;
const ITEMS:int = ROWS * COLUMNS;
 
for(var i:int = 0; i < ITEMS; i++){
	var s:Shape = new Shape();
	s.x = int(i / ROWS) * 5;		//  this is the same as Math.floor(i / ROWS), just faster
	s.y = (i % ROWS) * 5;
 
	s.graphics.beginFill(0x666666);
	s.graphics.drawRect(0, 0, 4, 4);
	addChild(s);
}

By upgrading to loop-invariants, we can cut the nested for-loop for a nice boost. And, as a bonus, this new code can work with sets that don't end squarely at the end of a column.