操作脚本 3.当我在菜单中时,计时器开始计数,但游戏未启动



我正在创建flash游戏,我遇到了奇怪的问题。计时器开始计数时,我在菜单,但游戏没有开始。在菜单中,我有按钮"播放",点击后它添加定时器,但它显示程序运行多长时间(从当前时间开始计数)。

main函数

        public function MemoryGame()
        {
            startMemoryGame.addEventListener(MouseEvent.CLICK, startPlay);
}

这是开始游戏的按钮:

function startPlay(e:MouseEvent):void
{
    startMemoryGame();
}

这是我的函数,其中计时器和其他对象添加。

    function startMemoryGame():void
            {

            timer = new Timer(1000); //create a new timer that ticks every second.
            timer.addEventListener(TimerEvent.TIMER, tick, false, 0, true); //listen for the timer tick
            timer.addEventListener(TimerEvent.TIMER, resetTimer);
            txtTime = new TextField();

            var format:TextFormat = new TextFormat();
                format.font = "Verdana";
                format.color = "#E50041";
                format.size = 22;
            txtTime.border = true;
            txtTime.borderColor = 0xFFFFFF;
                //format.bold = true;  
            //txtTime.x = 250;
            txtTime.width/2;
            var stageCenter_x:Number = stage.stageWidth/2;
            var stageCenter_y:Number = stage.stageHeight/2;
            var textCenter_x:Number = txtTime.width/2;
            var textCenter_y:Number = txtTime.height/2;
            txtTime.x = stageCenter_x - textCenter_x;
            txtTime.y = 55;     
            txtTime.autoSize = TextFieldAutoSize.CENTER;
            txtTime.defaultTextFormat = format;
            message_txt.autoSize = TextFieldAutoSize.CENTER;
            message_txt.defaultTextFormat = format;
                //here Timer starts
                txtTime.text = showTimePassed(0);
            addChild(txtTime);
            tmpTime = timer.currentCount;
            timer.start();

                _cards = new Array();
                _totalMatches = 18;
                _currentMatches = 0;
                createCards();
            }
            private function tick(e:Event):void {
            txtTime.text = showTimePassed(timer.currentCount - tmpTime);                    

    }
    function showTimePassed(startTime:int):String {
      var leadingZeroMS:String = ""; //how many leading 0's to put in front of the miliseconds
      var leadingZeroS:String = ""; //how many leading 0's to put in front of the seconds
      var leadingZeroM:String = "";
      var time = getTimer() - startTime; //this gets the amount of miliseconds elapsed
      var miliseconds = (time % 1000); // modulus (%) gives you the remainder after dividing, 
      if (miliseconds < 10) { //if less than two digits, add a leading 0
        leadingZeroMS = "0";
      }
      var seconds = Math.floor((time / 1000) % 60); //this gets the amount of seconds
      if (seconds < 10) { //if seconds are less than two digits, add the leading zero
        leadingZeroS = "0";
      }
      var minutes = Math.floor((time / (60 * 1000) ) );
        if (minutes < 10) { //if seconds are less than two digits, add the leading zero
        leadingZeroM = "0";
      }
      //60 seconds times 1000 miliseocnds gets the minutes
      return leadingZeroM + minutes + ":" + leadingZeroS + seconds ;
}

什么是奇怪的,如果我删除命令timer.start()我有同样的问题,我点击"开始播放"按钮后,它添加当前计时器(例如:00:12)只是计时器停止。

我试图使用timer.reset();,但同样的问题,所以我没有更多的想法是什么错了。我不明白为什么如果我之前没有用过任何函数,它就开始计时了。你能帮我一下吗?非常感谢。

showTimePassed中有这样一行:

var time = getTimer() - startTime;

getTimer()以毫秒为单位获得程序启动后经过的时间(参见文档)

startTime 应该是你开始游戏的时间,单位是毫秒。

因此,如果在startMemoryGame中使用定时器,只需将getTimer()的值存储在成员变量中,并将该变量作为参数传递给showTimePassed。或者更改showTimePassed的代码以满足您的需要。

修改一下:

private function tick(e:Event):void {
    txtTime.text = showTimePassed(timer.currentCount - tmpTime);                    
}

:

private function tick(e:Event):void {
    txtTime.text = showTimePassed(tmpTime);                    
}

这:tmpTime = timer.currentCount;

tmpTime = getTimer();

它应该给你正确的时间,如果你没有使用tmpTime在其他地方。否则就声明另一个变量。

说明:showTimePassed只是输出程序启动后经过的时间,但它从该时间中减去了参数startTime。输入0将给出启动程序后的时间。我建议的更改存储自tmpTime中程序执行以来的时间,当你开始游戏时,并将其传递给showTimePassed

启动程序。getTime()将给出~0

五秒钟后,你按下开始键。getTime()将是~5000,存储在tmpTime 中

showTimePassed在1秒后调用tmpTime(5000)。getTimer()的值是6000,减去startTime的值是1000,这是你按下开始键后的一秒。

这里有一些关于成员变量的信息:https://en.wikipedia.org/wiki/Member_variable

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