Отрисовка и удаление линий

[tsarapkabel]

Лови

import flash.events.MouseEvent;
import flash.display.Sprite;
import flash.display.DisplayObject;
 
 
var totalCircles:Number = 5; //Количество окружностей/линий
var lines:Sprite = new Sprite();
var drawFlag:Boolean = false;
 
this.addEventListener(MouseEvent.MOUSE_MOVE, drawLine);
 
for (var i:uint = 0; i < totalCircles; i++) {
	var circle:Sprite = new Sprite();
	circle.graphics.lineStyle(1, rndColor());
	circle.graphics.beginFill(rndColor());
	circle.graphics.drawCircle(0,0, rndRadius());
	circle.x = rndCoord();
	circle.y = rndCoord();
	circle.name = "circle" + i;
	circle.buttonMode = true;
	this.addChild(circle)
 
	circle.addEventListener(MouseEvent.MOUSE_DOWN, circle_mouseDown);
	circle.addEventListener(MouseEvent.MOUSE_UP, circle_mouseUp);
}
 
 
function circle_mouseDown(event:MouseEvent):void {
	drawFlag = true;
	event.target.startDrag();
}
function circle_mouseUp(event:MouseEvent):void {
	drawFlag = false;
	event.target.stopDrag();
}
 
 
 
function drawLine(event:MouseEvent):void {
	if (!drawFlag) return;
 
	lines.graphics.clear();
	lines.graphics.lineStyle(3, rndColor());
	for (var i:uint = 0; i < totalCircles; i++) {
 
		var dispObjCurr:DisplayObject = this.getChildByName("circle" + i);
		var dispObjNext:DisplayObject = this.getChildByName("circle" + (i+1));
		if (i == (totalCircles-1)) dispObjNext = this.getChildByName("circle0");
 
		lines.graphics.moveTo(dispObjCurr.x, dispObjCurr.y);
		lines.graphics.lineTo(dispObjNext.x, dispObjNext.y);
 
		this.addChild(lines);
	}
}
 
function rndColor():uint {
	return Math.random() * 0xFFFFFF;
}
function rndRadius():uint {
	return Math.random() * 50 + 30;
}
function rndCoord():uint {
	return Math.random() * 300;
}