flashPlayer自动降频后webgame处理技巧

         

from:http://bbs.9ria.com/viewthread.php?tid=73777&rpid=673266&ordertype=0&page=1#pid673266

 

/**
* EnterFrame事件处理
*/
private var frameRate:uint = stage.frameRate;
private var halfRate:uint = frameRate >> 1;
private var intervalTime:uint = 1000/frameRate;
private var deltaTime:Number = 0;
private var lastTime:uint = 0;
private function enterFrame(e:Event):void
{
     //计算实际帧频
    var nowTime:uint = getTimer();
      deltaTime = nowTime - lastTime;
      lastTime= nowTime;
      var realFrame:uint = uint(1000/deltaTime);//上一帧的实际帧频
    if(realFrame >= halfRate){
        gameLoop();
      }else{
        //flashplayer最小化后要做的事
        trace('浏览器最小化了');
        /** 补帧 */
        var tweenFrames:uint = frameRate/realFrame;
        for(var i:uint=0; i<tweenFrames; i++){
               gameLoop();
        }
      }
}