import fl.controls.CheckBox;

var ease:Boolean = false;
var drawHolder:Sprite = new Sprite();
var line:Shape = new Shape();
drawHolder.addChild(line);
this.addChild(drawHolder);
stage.addEventListener(MouseEvent.MOUSE_DOWN , onMouseDownHandler);
var arr_particle:Array = new Array();
var textFormat:TextFormat = new TextFormat();
textFormat.color = 0xFFFFFF;
var cb:CheckBox = new CheckBox();
cb.setStyle("textFormat",textFormat);
cb.label = "TOGGLE EASE";
cb.setSize(110,50);
cb.x = stage.stageWidth - cb.width;
addChild(cb);
cb.addEventListener(Event.CHANGE, onChangeCBHandler);
function onChangeCBHandler(e:Event) {
  ease=!ease;
}
function drawline(e:Event):void {
  line.graphics.lineTo(mouseX,mouseY);
}
function onMouseDownHandler(e:MouseEvent) {
  line.graphics.lineStyle(8, 0xFFFFFF, 1);
  line.graphics.moveTo(mouseX,mouseY);
  stage.addEventListener(MouseEvent.MOUSE_UP , onMouseUpHandler);
  stage.addEventListener(Event.ENTER_FRAME , drawline);
}
function onMouseUpHandler(e:MouseEvent) {
  stage.removeEventListener(MouseEvent.MOUSE_UP , onMouseUpHandler);
  stage.removeEventListener(Event.ENTER_FRAME , drawline);
  makeParticle();
}
function makeParticle() {
  var i:int = 0;
  var j:int = 0;
  var k:int =0;
  var g:uint;
  var bmp:BitmapData= new BitmapData(stage.stageWidth, stage.stageHeight, true, 0x00000000);
  bmp.draw(drawHolder);
  var bm:Bitmap = new Bitmap(bmp);
  line.graphics.clear();
  while (j < bmp.width) {
    k = 0;
    while (k < bmp.height) {
      g = bmp.getPixel(j, k);
      if (g != 16777215) {
      } else {
        var par:Shape = new Shape();
        par.graphics.beginFill(0xFFFFFF, 1);
        par.graphics.drawRect(0, 0, 1, 1);
        this.addChild(par);
        par.addEventListener(Event.ENTER_FRAME, onEnterFrameHandler);
        par.x = j+drawHolder.x;
        par.y = k+drawHolder.y;
        //arr_particle.push(par);
      }
      k = k + 2;
    }
    j = j + 2;
  }
}
function onEnterFrameHandler(e:Event) {
  if (ease) {
    e.target.x += Math.random()*8-4;
    e.target.y += Math.random()*8-4;
    e.target.alpha -= .05;
    if (e.target.alpha<=0) {
      e.target.removeEventListener(Event.ENTER_FRAME, onEnterFrameHandler);
      removeChild(DisplayObject(e.target));
    }
  }
}