BetweenAS3お試し2。

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

package 
{
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.events.MouseEvent;
	import org.libspark.betweenas3.BetweenAS3;
	import org.libspark.betweenas3.tweens.IObjectTween;
	import org.libspark.betweenas3.easing.*;
	/**
	 * ...
	 * @author izm_design
	 */
	//tweenが終了してないタイミングで新しくtweenを生成したら、おかしくなる？
        //はげしく、MOUSE_OVERとMOUSE_OUTを繰り返すとtweenされない。
        [SWF(backgroundColor="#FFFFFF", frameRate=30)]
	public class Main extends Sprite 
	{
		public function Main():void 
		{
			if (stage) init();
			else addEventListener(Event.ADDED_TO_STAGE, init);
		}
		
		private function init(e:Event = null):void 
		{
			removeEventListener(Event.ADDED_TO_STAGE, init);
			var sp1:Sprite = new Sprite();
			sp1.graphics.beginFill(0xff0000);
			sp1.graphics.drawRect(10, 10, 100, 100);
			sp1.graphics.endFill();
			addChild(sp1);
			
			var sp2:Sprite = new Sprite();
			sp2.graphics.beginFill(0x00ff00);
			sp2.graphics.drawRect(120, 10, 100, 100);
			sp2.graphics.endFill();
			addChild(sp2);
			
			sp1.addEventListener(MouseEvent.MOUSE_OVER, overHandler);			
			sp2.addEventListener(MouseEvent.MOUSE_OVER, overHandler);
			
			sp1.addEventListener(MouseEvent.MOUSE_OUT, outHandler);
			sp2.addEventListener(MouseEvent.MOUSE_OUT, outHandler);
		}	
		
		private function overHandler(e:MouseEvent):void 
		{
			BetweenAS3.tween(e.target, {alpha:0.5}, null, 1.0, Cubic.easeOut).play();
		}
		
		private function outHandler(e:MouseEvent):void 
		{
			BetweenAS3.tween(e.target, {alpha:1.0}, null, 1.0, Cubic.easeOut).play();
		}
	}
	
}