使用FLEX 和 Actionscript开发FLASH-9-3-1

使用FLEX 和 Actionscript开发FLASH-9-3-1
2010年12月04日
　　使用FLEX和Actionscript开发FLASH 游戏-定义一个级别 
　　Level.as package {     import flash.events.*;     import flahs.geom.*;     import flash.media.*;     import flash.net.*;     import flash.utils.*;     import mx.collections.ArrayCollection;     import mx.core.*;   public class Level     {         protected static var instance:Level=null;         protected static const TimeBetweenElements:Number=2;         protected static const TimeBetweenClouds:Number=2.5;         protected static const TimeToLevelEnd:Number=2;        protected var nextDefinitions:Array=null;         protected var levelID:int=0;         protected var totalTime:Number=0;         protected var timeToNextLevelElement:Number=0;         protected var levelElementGraphics:ArrayCollection=new ArrayCollection();         protected var timeToNextCloud:Number=0;         protected var timeToLevelEnd:Number=0;         protected var backgroundMusic:SoundChannel=null;         public var levelEnd:Boolean=false;         static public function get Instance():Level         {             if(instance==null)                 instance=new Level();             return instance;         }         public function Level()         {             levelElementGraphics.addItem(ResourceManager.Small IslandGraphics);             levelElementGraphics.addItem(ResourceManager.BigIs landGraphics);             levelElementGraphics.addItem(ResourceManager.Volca noIslandGraphics);         }         public function startup(levelID:int):void         {             timeToNextLevelElement=0;             new Player().startupPlayer();             timeToLevelEnd=TimeToLevelEnd;             levelEnd=false;             backgroudnMusic=ResourceManager.Track1FX.play(0,in t.MAX_VALUE);             this.totalTime=0;             this.levelID=levelID;             nextDefinitions=LevelDefinitions.Instance.getNextL evelDefinitionElements(levelID,0);         }         public function shutdown():void         {             backgroundMusic.stop();             backgroundMusic=null;         }         public function enterFrame(dt:Number):void         {             totalTime+=dt;             if(nextDefinitions==null)             {                 if(Enemy.pool.NumberOfActiveObjects==0)                     levelEnd=true;             }             else             {                 var nextLevelDefTime:Number=(nextDefinitions[0] as LevelDefinitionElement).time;                 if(totalTime>=nextLevelDefTime)                 {                     for each(var levelDefElement:LevelDefinitionElement in nextDefinitions)                         levelDefElement.func();                     nextDefinitions=LevelDefinitions.Instance.getNextL evelDefinitionElements(levelID,nextLevelDefTime);                 }             }