import flash.events.TimerEvent;
import flash.utils.Timer;

public function Koi():void {
    var time:Number = randomRange(15000,30000);
    var timer:Timer = new Timer(time);
    timer.addEventListener(TimerEvent.TIMER, layEggs);
    timer.start();
}

function layEggs(event:TimerEvent):void {
    var newEgg:Egg = new Egg();
    newEgg.x = this.x;
    newEgg.y = this.y;
    addChild(newEgg);
}

function randomRange(minNum:Number, maxNum:Number):Number {
    return ((Math.random() * (maxNum - minNum + 1)) + minNum);
}