Countdown in actionscript 3 - actionscript-3

Question

How do I create a countdown for a bus schedule in actionscript 3, I've searched online but mostly countdowns for holidays or a specific date appear. I need it to be recurring, bus runs every 30 mins.

Answer 1

package
{
import flash.display.Sprite;
import flash.utils.Timer;
import flash.events.TimerEvent;
import flash.events.Event;
public class countdownTimer extends Sprite
{
private var timer:Timer = new Timer(1000);
private var countdown:Number = 60;
public function countdownTimer():void
{
init();
}
private function init():void
{
timer.start();
timer.addEventListener(TimerEvent.TIMER, action);
}
private function action(e:TimerEvent):void
{
countdown--;
trace(countdown);
}
}
}
Its just basic..hope it will helps u.

Answer 2

I made a small flash application to give you an idea as to how you can approach a bus schedule with a countdown:
schedule.xml:
<?xml version="1.0" encoding="utf-8" ?>
<schedule>
<bus>
<name>1</name>
<times>
<time>1300</time>
<time>1400</time>
<time>1500</time>
<time>1600</time>
<time>1700</time>
</times>
</bus>
<bus>
<name>2</name>
<times>
<time>1300</time>
<time>1400</time>
<time>1500</time>
<time>1600</time>
<time>1700</time>
</times>
</bus>
</schedule>
Main.as(document class):
package
{
import flash.display.Sprite;
import flash.events.Event;
import flash.net.URLLoader;
import flash.net.URLRequest;
import flash.utils.Timer;
[SWF(width="200", height="350", backgroundColor="0xFFFFFF", frameRate="32")]
public class Main extends Sprite
{
private var _scheduleUi:ScheduleUI;
public function Main():void
{
if (stage) init();
else addEventListener(Event.ADDED_TO_STAGE, init);
}// end function
private function init(e:Event = null):void
{
removeEventListener(Event.ADDED_TO_STAGE, init);
var urlLoader:URLLoader = new URLLoader(new URLRequest("xml/schedule.xml"));
urlLoader.addEventListener(Event.COMPLETE, onUrlLoaderComplete);
}// end function
private function onUrlLoaderComplete(e:Event):void
{
_scheduleUi = new ScheduleUI(XML(URLLoader(e.target).data));
addChild(_scheduleUi);
}// end function
}// end class
}// end package
import flash.display.Sprite;
import flash.events.Event;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
internal class ScheduleUI extends Sprite
{
private var _schedule:Schedule;
private var _scheduleTextField:TextField;
public function ScheduleUI(scheduleXml:XML)
{
_schedule = new Schedule(scheduleXml);
_scheduleTextField = new TextField();
_scheduleTextField.autoSize = TextFieldAutoSize.LEFT;
_scheduleTextField.multiline = true;
addChild(_scheduleTextField);
addEventListener(Event.ENTER_FRAME, onEnterFrame);
}// end function
private function onEnterFrame(e:Event):void { updateScheduleTextField() }
private function updateScheduleTextField():void
{
var scheduleString:String = new String();
for each(var bus:Bus in _schedule.getBuses())
{
scheduleString += "BUS: " + bus.name;
for each(var time:Time in bus.getTimes())
{
scheduleString += "\n\n" + "\t" + "Time: " + time + ", Counddown: " + time.getCountDown();
}// end for each
scheduleString += "\n\n";
}// end for each
_scheduleTextField.text = scheduleString;
}// end function
}// end class
internal class Schedule
{
private var _schedule:XML;
public function Schedule(schedule:XML):void
{
_schedule = schedule;
}// end function
public function getBuses():Vector.<Bus>
{
var buses:Vector.<Bus> = new Vector.<Bus>();
for each(var bus:XML in _schedule.bus) buses.push(new Bus(bus));
return buses;
}// end function
}// end function
internal class Bus
{
private var _bus:XML;
public function get name():int { return _bus.name }
public function Bus(bus:XML) { _bus = bus }
public function getTimes():Vector.<Time>
{
var times:Vector.<Time> = new Vector.<Time>();
for each(var time:XML in _bus.times.time) times.push(new Time(time));
return times;
}// end function
}// end class
internal class Time
{
private var _time:XML;
public function Time(time:XML) { _time = time }
public function getCountDown():String
{
var hours:int = _time.toString().substring(0, 2);
var minutes:int = _time.toString().substring(2, 4);
var currentDate:Date = new Date();
var date:Date = new Date();
date.setUTCMilliseconds(0);
date.setUTCSeconds(0);
date.setUTCMinutes(minutes);
date.setUTCHours(hours - 1);
var countDownDate:Date = new Date();
countDownDate.setTime((date.getTime() - currentDate.getTime()))
return (countDownDate.getTime() > 0) ? countDownDate.toTimeString().substring(0, 8) : String(0);
}// end function
public function toString():String { return _time }
}// end class