クリックしたらだんだん透明になるグラデーション。

/**
 * Copyright pykgg476 ( http://wonderfl.net/user/pykgg476 )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/2PAq
 */

package {
	import flash.display.GradientType;
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.events.MouseEvent;
	import flash.geom.Matrix;

	public class GrandientFill extends Sprite
	{
			static var colors:Array = new Array();
			static var alphas:Array= new Array();
			static var ratios:Array= new Array(); 
			static var matrix:Matrix = new Matrix();
			var my:Sprite = new Sprite();
			
			
		public function GrandientFill()
		{
			init();
		}
		
		public function init():void{
			my.graphics.lineStyle(1);
			GrandientFill.colors = [0xfff000,0xff22a1];
			GrandientFill.alphas= [1,1];
			GrandientFill.ratios= [0,255];
			GrandientFill.matrix.createGradientBox(100,100,87,100,100);
			my.graphics.beginGradientFill(GradientType.LINEAR,colors,alphas,ratios,matrix);
			my.graphics.drawRect(100,100,200,200);
			my.graphics.endFill();
			addChild(my);
			stage.addEventListener(MouseEvent.CLICK,click);
		}
		
		public function click(event:MouseEvent):void{

			if(alphas[1] != 0){
				addEventListener(Event.ENTER_FRAME, onTimer);
			}
			
		}
		
		public function onTimer(event:Event):void{
			
			GrandientFill.alphas[1] -= 0.01;
			my.graphics.clear();
			my.graphics.lineStyle(1);
			my.graphics.beginGradientFill(GradientType.LINEAR,colors,alphas,ratios,matrix);
			my.graphics.drawRect(100,100,200,200);
			my.graphics.endFill();
			
			
			if(GrandientFill.alphas[1] <= 0){
				removeEventListener(Event.ENTER_FRAME, onTimer);
			}

		}
		
		
		
	}
}