Action Script 3. How to count game time? - actionscript-3

Question

I'm creating Flash "memory" game, Idea to discover 2 equal cards. I need to add "Timer" in top of window which count in how many seconds all cards will be descovered.
Here is my code:
package
{
import flash.display.MovieClip;
import Card;
import Boarder;
import BlueBoard;
import flash.events.MouseEvent;
import RedBoard;
import Snow;
public class MemoryGame extends MovieClip
{
private var _card:Card;
private var _boarder:Boarder;
private var _blueBoard:BlueBoard;
private var _cardX:Number;
private var _cardY:Number;
private var _firstCard:*;
private var _totalMatches:Number;
private var _currentMatches:Number;
private var _redBoard:RedBoard;
private var _snow:Snow;
private var _cards:Array;
public var _message:String;
public function MemoryGame()
{
_cards = new Array();
_totalMatches = 4;
_currentMatches = 0;
createCards();
}
private function createCards():void
{
_cardX = 45;
_cardY = 10;
for(var i:Number = 0; i < 2; i++)
{
_card = new Card();
addChild(_card);
_boarder = new Boarder();
_card.setType(_boarder);
_card.x = _cardX;
_card.y = _cardY;
_cardX += _card.width + 50;
_card.addEventListener(MouseEvent.CLICK, checkCards);
_cards.push(_card);
}
for(var j:Number = 0; j < 2; j++)
{
_card = new Card();
addChild(_card);
_blueBoard = new BlueBoard();
_card.setType(_blueBoard);
_card.x = _cardX;
_card.y = _cardY;
_cardX += _card.width + 50;
_card.addEventListener(MouseEvent.CLICK, checkCards);
_cards.push(_card);
}
_cardX = 45;
_cardY = _card.height + 30;
for(var k:Number = 0; k < 2; k++)
{
_card = new Card();
addChild(_card);
_redBoard = new RedBoard();
_card.setType(_redBoard);
_card.x = _cardX;
_card.y = _cardY;
_cardX += _card.width + 50;
_card.addEventListener(MouseEvent.CLICK, checkCards);
_cards.push(_card);
}
for(var l:Number = 0; l < 2; l++)
{
_card = new Card();
addChild(_card);
_snow = new Snow();
_card.setType(_snow);
_card.x = _cardX;
_card.y = _cardY;
_cardX += _card.width + 50;
_card.addEventListener(MouseEvent.CLICK, checkCards);
_cards.push(_card);
}
randomizeCards(_cards);
}
private function checkCards(event:MouseEvent):void
{
event.currentTarget.removeEventListener(MouseEvent.CLICK, checkCards);
if(_firstCard == undefined)
{
_firstCard = event.currentTarget;
}
else if(String(_firstCard._type) == String(event.currentTarget._type))
{
trace("match");
_message = "match";
message_txt.text = _message;
_firstCard = undefined;
_currentMatches ++;
if(_currentMatches >= _totalMatches)
{
trace("YOU WIN !!!");
_message = "YOU WIN !!!";
message_txt.text = _message;
}
}
else
{
trace("wrong");
_message = "wrong";
message_txt.text = _message;
_firstCard.gotoAndPlay("flipBack");
event.currentTarget.gotoAndPlay("flipBack");
_firstCard.addEventListener(MouseEvent.CLICK, checkCards);
event.currentTarget.addEventListener(MouseEvent.CLICK, checkCards);
_firstCard = undefined;
}
}
private function randomizeCards(cards:Array):void
{
var randomCard1:Number;
var randomCard2:Number;
var card1X:Number;
var card1Y:Number;
for(var i:Number = 0; i < 10; i++)
{
randomCard1 = Math.floor(Math.random() * cards.length);
randomCard2 = Math.floor(Math.random() * cards.length);
card1X = cards[randomCard1].x;
card1Y = cards[randomCard1].y;
cards[randomCard1].x = cards[randomCard2].x;
cards[randomCard1].y = cards[randomCard2].y
cards[randomCard2].x = card1X;
cards[randomCard2].y = card1Y;
}
}
}
}
EDIT:
And I have one more question. When I will add this game to PHP, how can I add username and his time to database? I need write code in Action Script (swf file) or I can do it in php later? I mean in php can I use any method to get time from swf file and write it to database?
Could you help me? Thank you very much.

Answer 1

Here is an example of how to use the Timer class (flash.utils.Timer) to accomplished what you're asking:
var timer:Timer; //import flash.utils.Timer;
var txtTime:TextField;
var tmpTime:Number; //this will store the time when the game is started
//your constructor:
public function MemoryGame()
{
timer = new Timer(1000); //create a new timer that ticks every second.
timer.addEventListener(TimerEvent.TIMER, tick, false, 0, true); //listen for the timer tick
txtTime = new TextField();
addChild(txtTime);
tmpTime = flash.utils.getTimer();
timer.start(); //start the timer
//....the rest of your code
}
private function tick(e:Event):void {
txtTime.text = showTimePassed(flash.utils.getTimer() - tmpTime);
}
//this function will format your time like a stopwatch
function showTimePassed(startTime:int):String {
var leadingZeroMS:String = ""; //how many leading 0's to put in front of the miliseconds
var leadingZeroS:String = ""; //how many leading 0's to put in front of the seconds
var time = getTimer() - startTime; //this gets the amount of miliseconds elapsed
var miliseconds = (time % 1000); // modulus (%) gives you the remainder after dividing,
if (miliseconds < 10) { //if less than two digits, add a leading 0
leadingZeroMS = "0";
}
var seconds = Math.floor((time / 1000) % 60); //this gets the amount of seconds
if (seconds < 10) { //if seconds are less than two digits, add the leading zero
leadingZeroS = "0";
}
var minutes = Math.floor( (time / (60 * 1000) ) ); //60 seconds times 1000 miliseocnds gets the minutes
return minutes + ":" + leadingZeroS + seconds + "." + leadingZeroMS + miliseconds;
}
//in your you-win block of code:
var score = flash.utils.getTimer() - tmpTime; //this store how many milliseconds it took them to complete the game.
This creates a timer that will tick every second, and update a text field with the current amount of seconds elapsed
As per the second part of your request, here is a way you can do this (the database work needs to be done in PHP, this shows you how to send the data to a php page)
var urlLoader:URLLoader = new URLLoader();
urlLoader.addEventListener(Event.COMPLETE, scoreSaveResponse,false,0,true);
var request:URLRequest = new URLRequest("http://mysite.com/score.php");
var urlVars:URLVariables = new URLVariables();
urlVars.time = flash.utils.getTimer() - tmpTime;
urlVars.userName = "yourUserName";
//add any other parameters you want to pass to your PHP page
request.method = URLRequestMethod.POST;
urlLoader.data = urlVars;
urlLoader.load(request);
function scoreSaveResponse(e:Event):void {
//whatever you return from the php page is found in urlLoader.data
}