SomeCode

var dragging:MovieClip = null;
var forDragging:Array = [circle, square];
var arrayOfGoal:Array = [];


for (var i:int = 0; i < numChildren; i++)
{
    var child:DisplayObject = getChildAt(i);
    if (child is Goal)
        arrayOfGoal.push(child);
}
var onClickCheck = function(e:Event):void
{
    var count:int = 0;
    for each (var goal:DisplayObject in arrayOfGoal)
    for each (var drag:DisplayObject in forDragging)
    {
        if (distance(drag, goal) < 40)
        {
            var result:String = drag.name+ " NEAR " + goal.name;
            if (goal.name.toLocaleLowerCase().indexOf(drag.name) > -1)
                count++;
                //trace(result + " => OK");
        }
    }
    checkResult.text = "Плоха";
    if (count == arrayOfGoal.length)
        checkResult.text = "Ай малаца!";
}
var onDown = function (e:MouseEvent):void
{
    if (dragging != null)
        dragging.stopDrag();
    dragging = e.target as MovieClip;
    dragging.startDrag();
}
// Теорема Пифагора
var distance = function(a:DisplayObject, b:DisplayObject):Number
{
    var X:Number = (a.x - b.x);
    var Y:Number = (a.y - b.y);
    return Math.sqrt(X * X + Y * Y);
}
var onUp = function (e:MouseEvent):void
{
    if (dragging != null)
    {
        dragging.stopDrag();
        for each (var goal:DisplayObject in arrayOfGoal)
        {
            if (distance(dragging, goal) < 40)
            {
                var result:String = dragging.name+ " NEAR " + goal.name;
                if (goal.name.toLocaleLowerCase().indexOf(dragging.name) > -1)
                    trace(result + " => OK");
                dragging.x = goal.x;
                dragging.y = goal.y;
            }
        }
    }
    dragging = null;
}

stage.addEventListener(MouseEvent.MOUSE_UP, onUp);
for each (var drag:DisplayObject in forDragging)
    drag.addEventListener(MouseEvent.MOUSE_DOWN, onDown);
buttonCheck.addEventListener(MouseEvent.CLICK, onClickCheck);