actionscript 3 how to keep track of time elapsed?

Question

im new to actionscript3 flash. I have a int variable and i would like to add +2 every second since game started. How can i do this ? how do i know how much time has elapsed? thanks in advance!

Solution 1

getTimer() will return an int of exactly how many milliseconds from when flash started.

import flash.utils.getTimer;

var myInt:int = getTimer() * 0.001;

myInt will now be however many seconds the program has been running.

edit: oh to tell how long it has been running just keep the initial myInt and check it against the current timer.

so when the game first starts.

var startTime:int = getTimer();

then every frame or whenever you need to check it.

var currentTime:int = getTimer();


var timeRunning:int = (currentTime - startTime) * 0.001; // this is how many seconds the game has been running.

Solution 2

var a:int = 0;

var onTimer:Function = function (e:TimerEvent):void {
    a += 2;
}

var timer:Timer = new Timer(1000);
timer.addEventListener(TimerEvent.TIMER, onTimer);
timer.start();

Comments

[CoffeDeveloper]

help.adobe.com/en_US/as2/reference/flashlite/… there is little ambiguity, I see in the IDE's getTimer returning int while flash documentation says getTimer returns Number. Would be usefull to know wich one is correct. cheers

[Feltope]

the function declaration in the headers (library) is "public function getTimer():int" so it returns an int. by the way those are the actionScript 2 references not the actionScript 3 ones. help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/‌​…

[CoffeDeveloper]

you saved me headhackes :)

[claudius iacob]

Your example is faulty: var myInt:int = getTimer() * 0.001; myInt will always be 0, because you cast an unassigned Number to an int