需要在AS3中使用动画库的帮助

Question

我一直试图在Flash中创建一个不同的电影剪辑画廊。

Timeline
-back button
-next button
-stop button
-play button 
-Main Movie
 (these are inside Main Movie)
 --Animation 1
 --Animation 2
 --Animation 3

我有动画设置在主电影与实例名称和帧名称，如“动画1”。我让它播放和停止，但我不能通过后退和下一步按钮来回切换每个动画。我做这件事的正确方法是什么？

-更新8-20-2010

我让它工作了，但有一个很小的bug。每当我单击“下一步”或“后退”按钮时，它都会转到第一个框架名称，然后是另一个。我做了一个跟踪，我发现它在计算"ad-1，ad-2，ad-3，等等“。或"ad1、ad2、ad3等。“

var currentAnimationIndex:int;
var currentAnimation:int;
var animeOstart:Number = 1;
var animeOend:Number = 3;

function playAnimation(frameIndex:int):void 
{ 
   var frameName:String = "ad" + frameIndex.toString();
   trace(frameName)
   ads.gotoAndPlay(frameName);
   ads.movie.gotoAndPlay(1);

   currentAnimationIndex = frameIndex; 
} 

function playBack(event:MouseEvent):void 
{ 
   --currentAnimationIndex; 

   if(currentAnimationIndex < animeOstart) 
      currentAnimation == 1; 

  playAnimation(currentAnimationIndex); 
} 

function playNext(event:MouseEvent):void 
{ 
   ++currentAnimationIndex; 

   if(currentAnimationIndex > animeOend) 
      currentAnimation == 3; 

  playAnimation(currentAnimationIndex); 
}

Answer 1

了解了如何在AS3中完成此操作！

b_back.addEventListener(MouseEvent.CLICK, prevSection);
b_next.addEventListener(MouseEvent.CLICK, nextSection);

function nextSection(event:MouseEvent):void {

    var thisLabel:String = ads.currentLabel; // gets current frame label as string
    var thisLabelNum:String = thisLabel.replace("ad", ""); // cuts the leading letters off of the number
    var curNumber:Number = Number(thisLabelNum); // converts that string number to a real number
    if (curNumber < 3) {
        var nextNum:Number = curNumber + 1; // adds 1 to the number so we can go to next frame label
        ads.gotoAndPlay("ad" + nextNum); // This allows us to go to the next frame label
    }else if(curNumber >= 3){
        ads.gotoAndPlay("ad" + 1); // This allows us to go to the next frame label
    }
}

function prevSection(event:MouseEvent):void {

    var thisLabel:String = ads.currentLabel; // gets current frame label as string
    var thisLabelNum:String = thisLabel.replace("ad", ""); // cuts the leading letters off of the number
    var curNumber:Number = Number(thisLabelNum); // converts that string number to a real number
    var prevNum:Number = curNumber - 1; // subtracts 1 from the number so we can go to next frame label
    ads.gotoAndPlay("ad" + prevNum); // This allows us to go to the previous frame label*/
    if (curNumber == 1) {
        ads.gotoAndPlay("ad" + 3); // This allows us to go to the next frame label
    }

}

在这个网站上找到的。http://www.developphp.com/Flash_tutorials/show_tutorial.php?tid=161

Answer 2

您应该将下面的代码放在按钮所在的主时间轴上。我已经为你的主MovieClip指定了实例名" Main“。

  var currentAnimationIndex:int;

  public function playAnimation(frameIndex:int):void
  {
       var frameName:String = "Animation " + frameIndex.toString();
       main.gotoAndStop(frameName);

       currentAnimationIndex = frameIndex;
  }

  public function playBack(event:MouseEvent):void
  {
       --currentAnimationIndex;

       if(currentAnimationIndex < 1)
          currentAnimation == 3;

      playAnimation(currentAnimationIndex);
  }

  public function playNext(event:MouseEvent):void
  {
       ++currentAnimationIndex;

       if(currentAnimationIndex > 3)
          currentAnimation == 1;

      playAnimation(currentAnimationIndex);
  }

创建一个注册当前动画的变量并递减它，或者递增它以返回或播放下一个动画。将相关函数分配给具有MouseEvent侦听器的按钮。这里我使用了1和3，但是你可以有几个变量，minAnimIndex和maxAnimIndex。

希望这能有所帮助！