Flash AS3实例:制作随意拖动的四边形

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Flash AS3实例:制作随意拖动的四边形: 大中小文章来源：万象互联更新时间：2011-8-18

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 <table style="BORDER-RIGHT: #cccccc 1px dotted; TABLE-LAYOUT: fixed; BORDER-TOP: #cccccc 1px dotted; BORDER-LEFT: #cccccc 1px dotted; BORDER-BOTTOM: #cccccc 1px dotted" cellspacing="0" cellpadding="6" width="95%" align="center" border="0"> <tbody> <tr> <td style="WORD-WRAP: break-word" bgcolor="#fdfddf">万象互联网络资讯网提示：as3打造可随意拖动的四边形.</td> </tr> </tbody> </table> 先看效果： <object codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=5,0,0,0" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="550" height="400"> <param name="_cx" value="14552" /> <param name="_cy" value="10583" /> <param name="FlashVars" value="" /> <param name="Movie" value="/files/media/1_100511073810.swf" /> <param name="Src" value="/files/media/1_100511073810.swf" /> <param name="WMode" value="Window" /> <param name="Play" value="0" /> <param name="Loop" value="-1" /> <param name="Quality" value="High" /> <param name="SAlign" value="" /> <param name="Menu" value="-1" /> <param name="Base" value="" /> <param name="AllowScriptAccess" value="" /> <param name="Scale" value="ShowAll" /> <param name="DeviceFont" value="0" /> <param name="EmbedMovie" value="0" /> <param name="BGColor" value="" /> <param name="SWRemote" value="" /> <param name="MovieData" value="" /> <param name="SeamlessTabbing" value="1" /> <param name="Profile" value="0" /> <param name="ProfileAddress" value="" /> <param name="ProfilePort" value="0" /> <param name="AllowNetworking" value="all" /> <param name="AllowFullScreen" value="false" /></object> Main： <div class="code">package { import as3.Mc; import flash.display.Sprite; import flash.events.Event; /** * ... * @author ... */ public class Main extends Sprite { private var line:Sprite; private var mcs:Array=[]; public function Main():void { line = new Sprite(); addChild(line); init(); } private function init() { for (var i:uint = 0; i<4; i++) { var mc = new Mc(); mc.x=20*Math.random()+20*i; mc.y=20*Math.random()+20*i; addChild(mc); mcs.push(mc); } addEventListener(Event.ENTER_FRAME, f); } private function f(e:Event) { line.graphics.clear(); line.graphics.lineStyle(1); line.graphics.moveTo(mcs[0].x, mcs[0].y); for (var i:uint =1; i <4; i++) { line.graphics.lineTo(mcs[i].x,mcs[i].y); } line.graphics.lineTo(mcs[0].x,mcs[0].y); } } }</div> Mc： <div class="code">package as3 { import flash.display.Sprite; import flash.events.Event; import flash.events.MouseEvent; /** * ... * @author ... */ public class Mc extends Sprite { public function Mc():void { addEventListener(MouseEvent.MOUSE_DOWN, d); addEventListener(MouseEvent.MOUSE_UP, u); } private function d(e:MouseEvent):void{ e.currentTarget.startDrag(); } private function u(e:MouseEvent):void { e.currentTarget.stopDrag(); } } }</div></div>

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