chevyray's post translated from incomprehensible font

gistfile1.as

private function pushOutUnits(elastic:Number):void
{
	for (var i:int = 0; i < units.length - 1; i++)
	{
		for (var j:int = i + 1; j < units.length; j++)
		{
			push.x = units[i].x - units[j].x;
			push.y = units[i].y - units[j].y;
			
			var d:number = push.length;
			var r:number = units[i].radius + units[j].radius;
			
			if (d < r)
			{
				// the part @ChevyRay missed. Have to move out by (r - d) / 2 not just d / 2!
				push.normalize((r - d) * 0.5 * elastic);
				units[i].x += push.x;
				units[i].y += push.y;
				units[j].x += push.x;
				units[j].y += push.y;
				units[i].acc = units[j].acc;
			}
		}
	}
}