如何用AS实现摆动

您现在的位置：万象互联帮助中心>> 最新资讯>>详细内容

<<返回上一页

如何用AS实现摆动: 大中小文章来源：万象互联更新时间：2012-11-20

分享到：

 As3摆动算法 package com.klstudio.algorithms { import flash.events.MouseEvent; import flash.events.Event; import flash.display.MovieClip; import flash.display.Sprite; /** * 摆动算法 * @author Kinglong(kinglong@gmail.com) * @since:2010-9-20 */ [SWF(width = 550, height = 400, frameRate = 24, backgroundColor = 0x333333)] public class Swing extends Sprite { /** * 显示元件 */ private var _icon : MovieClip; /** * xy弧度 */ private var _xAngle : Number; private var _yAngle : Number; /** * xy摆动的速度 */ private var _xSpeed : Number; private var _ySpeed : Number; /** * xy摆动的振幅 */ private var _xRadius : Number; private var _yRadius : Number; private var _mod : int; public function Swing() { _icon = new jAcid_smiley(); addChild(_icon); initParams(); stage.addEventListener(MouseEvent.CLICK, stageHandler); addEventListener(Event.ENTER_FRAME, enterFrameHandler); } private function initParams(mod : int = 0) : void { _mod = mod; switch(_mod) { case 0: case 1: case 2: _xAngle = _yAngle = 0; _xSpeed = _ySpeed = 0.05; _xRadius = _yRadius = 100; break; case 3: _xSpeed = 0.15; _ySpeed = 0.05; _xRadius = 100; _yRadius = 50; break; } } private function stageHandler(event : Event) : void { var mod : int = _mod + 1; initParams(mod % 4); } private function enterFrameHandler(event : Event) : void { switch(_mod) { case 0: _icon.x = 0; _icon.y = 100; _icon.x = 200 + Math.sin(_xAngle) * _xRadius; _xAngle += _xSpeed; break; case 1: _icon.x = 100; _icon.y = 100; _icon.y = 200 + Math.cos(_yAngle) * _yRadius; _yAngle += _ySpeed; break; case 2: case 3: _icon.x = 0; _icon.y = 100; _icon.x = 200 + Math.sin(_xAngle) * _xRadius; _icon.y = 200 + Math.cos(_yAngle) * _yRadius; _xAngle += _xSpeed; _yAngle += _ySpeed; break; 文章来源：<a href="http://www.163ns.com">http://www.163ns.com</a>，转载请注明！ 

分享到：复制地址新浪微博腾讯微博 QQ空间开心网人人网百度空间百度贴吧网易微博搜狐微博

上一篇：如何用AS实现弹簧效果

下一篇：浅谈FLASH 脚本

广告联盟中的CPA、CPS、CPC、CPM分别是什么意思