Testを連打しちゃだめよ

/**
 * Copyright matsumos ( http://wonderfl.net/user/matsumos )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/jgJ8
 */

package {
    import flash.display.*;
    import flash.events.*
    import org.libspark.betweenas3.BetweenAS3;
    import org.libspark.betweenas3.easing.*;
    import org.libspark.betweenas3.tweens.*;
    import com.bit101.components.*;

    public class FlashTest extends Sprite {
        private var ball:Sprite;
        public function FlashTest() {
            
            ball = createBall();
            ball.y = 100;
            addChild(ball);
            
            var t:ITween = BetweenAS3.tween(ball, {x:300}, {x:0}, 1, Expo.easeInOut);
            
            new PushButton(this, 120, 300, "Test", function():void { t.stop(); t.play(); } );
        }
        
        private function createBall():Sprite{
            var ball:Sprite = new Sprite();
            ball.graphics.beginFill(0xFF0000);
            ball.graphics.drawCircle(0,0,100);
            return ball;
        }
    }
}