AS3 addChild 设置时间后

Question

对于我们正在创建的游戏，我们需要在一定时间后“弹出”一个影片剪辑，通常在 10 到 20 秒之间。如果出现此影片剪辑，则需要在影片剪辑处于活动状态时暂停计时器，并在影片剪辑消失后重新启动计时器。有人知道怎么做吗？

Answer 1

import flash.utils.setTimeout;

// Your Sprite / MovieClip
var clip:MovieClip;
// The time until you want to add the first one
var timeToAdd:uint = Math.random() * 20;
// This will be the timer
var _timer:uint;

// This will add us to the stage after the random time. Second variable is seconds, so we need to multiply by 1000.
_timer = setTimeout(addToStage, timeToAdd * 1000);

// Called when the timer expires
function addToStage():void{
    clip = new MovieClip();
    // You would need logic to decide when to remove it, but once it is removed this will fire
    clip.addEventListener(Event.REMOVED_FROM_STAGE, onRemove);
}

// Called once removed
function onRemove(e:Event):void{
    // Remove the event listener
    clip.removeEventListener(Event.REMOVED_FROM_STAGE, onRemove);
    // Restart the timer
    timeToAdd = Math.random() * 20;
    _timer = setTimeout(addToStage, timeToAdd * 1000);
}

以上代码将在 0.001 - 20 秒内将您的精灵添加到舞台一次。您需要添加一些代码来删除您的精灵 (removeChild(clip))。