/*
* 作者姚伟。闪吧ID：hust。Email:yaowei821127@163.com
* 你可以修改和使用此代码。但请著名原作者，谢谢。
* 2006.2.12
* 保守但安全的逐个载入模式－－SafeLoader（逐个加载器）
*/
class loaders.SafeLoader{
    private static var taskArr : Array = new Array ();
    private static var mclArr : Array = new Array ();
    private static var listArr : Array = new Array ();
    public static var waitNum : Number = 0;
    public static var loadedNum : Number = 0;
    public static var loadingNum : Number = 0;
    public static var totalNum : Number = 0;
    //private var loader
    //private static var LoadID : Number;
    public static function addTask (url : String, target_mc : MovieClip ){
        trace ("addTask");
        taskArr.push ([url, target_mc]);
        totalNum ++;
        waitNum ++;
    }
    private static function preLoad (){
        for (var i=0; i < taskArr.length; i ++)
        {
            trace ("i=" + i);
            listArr  = new Object ();
            listArr .onLoadStart = function ()
            {
                waitNum --;
                loadingNum ++;
            }
            listArr .onLoadProgress = function ()
            {
            }
            listArr .onLoadComplete = function ()
            {
            }
            listArr .onLoadInit = function ()
            {
                loadingNum --;
                loadedNum ++;
                //success,next
                trace ("onLoadInit");
                trace ("i=" + i);
                if (loadedNum < (SafeLoader.taskArr.length))
                {
                    trace ("启动下一个");
                    mclArr [loadedNum].loadClip (taskArr [loadedNum][0] , taskArr [loadedNum][1]);
                }
            }
            listArr .onLoadError = function ()
            {
                //error,again
                mclArr [loadedNum-1].loadClip (taskArr [loadedNum-1][0] , taskArr [loadedNum-1][1]);
            }
            
        }
        for (var i = 0; i < taskArr.length; i ++){
            mclArr  = new MovieClipLoader ();
            mclArr .addListener (listArr );
        }
    }
    public static function startLoad (){
        preLoad ();
        mclArr [0].loadClip (taskArr [0][0] , taskArr [0][1]);
    }
}