cloudmovieclip.as

《Flash AS3殿堂之路》光盘源码 学习ActionScript 3.0

package org.kingda.book.display
{
	import flash.display.MovieClip;
	import flash.events.Event;
	public class CloudMovieClip extends MovieClip
	{
		private var _speed:Number = 1;
		//speed是云彩移动的速度
		public function CloudMovieClip(){
			super();
			//添加动画效果
			addEventListener(Event.ENTER_FRAME, move);
		}
		public function set speed(nS:Number):void {
			_speed = nS;
		}
		//每帧的云彩移动
		private function move(evt:Event):void {
			this.x -= _speed;
		}		
	}
}