class Ball 
{
	private var _mc:MovieClip;
	
	//Constructor: duplicates the counter in a new position, new name.
	function Ball(copyClip:MovieClip, sourceMc:String, px:Number, py:Number,scale:Number)
	{
		//Initialise the level counter
		if (_global.lvl == undefined) _global.lvl = 0;
		
		_mc = copyClip.duplicateMovieClip(sourceMc, _global.lvl);
		
		_mc._x = px;
		_mc._y = py;
		_mc._xscale = scale;
		_mc._yscale = scale;
		
		_global.lvl++;
	}
	
	
	private var d,d_1,d_2:Number;
	
	// This function should move ball from one column to another in an appropriate
	// bouncing fashion. Still a problem with this. For large m , the balls don't always
	// satisfy the close to destination condition.
	public function moveIt(sourceMc:MovieClip,destx:Number,desty:Number):Void
	{
		d_1 = destx-sourceMc._x;
		d_2 = desty-sourceMc._y;
		d   = Math.sqrt(d_1*d_1+d_2*d_2);
		function GO(e_1:Number,e_2:Number,e:Number):Void 
		{
			//trace((destx-sourceMc._x)*(destx-sourceMc._x)+(desty-sourceMc._y)*(desty-sourceMc._y));
			//if (( (destx-sourceMc._x)*(destx-sourceMc._x)+(desty-sourceMc._y)*(desty-sourceMc._y))>50)
			if ((destx-sourceMc._x)*(destx-sourceMc._x)>100 || (desty-sourceMc._y)*(desty-sourceMc._y)>100)
			{
				//trace("destx="+destx);
				//trace("destx="+desty);
				//trace("mc._x="+sourceMc._x);
				//trace("mc._y="+sourceMc._y);
				sourceMc._x +=4*e_1/e;
				sourceMc._y +=4*e_2/e;
			} else {
				sourceMc._x = destx;
				sourceMc._y = desty;
				clearInterval(MOVEit);
			}
		}
		var MOVEit:Number = setInterval(GO,1,d_1,d_2,d);
		
 		//clearInterval(MOVEit);
	}
	
}