Question

我有一个事件触发，显示视频中的进展：

_currentPosition = 3.86秒 _currentPosition = 4.02秒 _currentPosition = 4.16秒等

我要做的是每五秒向服务器发送一次通知，以指示进度。我可以使用Math.floor将秒数舍入到最接近的整数。然后我可以使用模数来获得每五秒钟。我没有看到的是如何不发送重复（例如）5，因为5.02,5.15,5.36等都将符合条件。

我想要类似下面的东西，它在快速触发的事件中执行，类似于enterframe。但我不知道如何或在哪里为_sentNumber进行测试，在哪里声明它，在哪里重置它......

    var _sentNumber:int;
   //_currentPosition is  the same as current time, i.e. 5.01, 5.15, etc.
var _floorPosition:int = Math.floor(_currentPosition); //returns 5
    if(_floorPosition % 5 == 0) //every five seconds, but this should only happen
                                        // once for each multiple of 5. 
    {
       if(_floorPosition != _sentNumber)       //something like this?
       {
        sendVariablesToServer("video_progress");
       }
    _sentNumber = _floorPosition;

感谢。

Answer 1

看起来你几乎就在那里。我只是将_sentNumber声明放在if语句中：

var _sentNumber:int = 0;

private function onUpdate(...args:Array):void // or whatever your method signature is that handles the update
{
    //_currentPosition is  the same as current time, i.e. 5.01, 5.15, etc.
    var _floorPosition:int = Math.floor(_currentPosition); //returns 5
    if(_floorPosition % 5 == 0 && _floorPosition != _sentNumber) //every five seconds, but this should only happen once for each multiple of 5. 
    {
        sendVariablesToServer("video_progress");
        _sentNumber = _floorPosition;
    }
}

Answer 2

private var storedTime:Number = 0;

private function testTime( ):void{
  //_currentPosition is  the same as current time, i.e. 5.01, 5.15, etc.
  if( _currentPosition-5 > storedTime ){
    storedTime = _currentPosition
    sendVariablesToServer("video_progress");
  }
}

排除重复的模数值

2 个答案: