Konami Code for Flex 3

zombiegx — Tue, 17 Nov 2009 02:11:46 +0000

I never did add an easter egg to any of my applications, but recently I stumbled upon konamicodesites.com, a site that lists other sites that use the konami code.

I’ve been working mostly with flex applications so I created a simple component to add 30 life to my apps, this component dispatches an event when the user inputs the Konami Code on their keyboard.

To use the component just add it anywhere in your application.

^?View Code MXML

 success="Alert.show('+30 lives!!!')" />

here is the code of the component:

^?View Code ACTIONSCRIPT

<?xml version="1.0" encoding="utf-8"?>
<mx:UIComponent xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="init()">
	<mx:Metadata>
		[Event(name="success", type="flash.events.Event")]
	mx:Metadata>
	<mx:Script>
		[CDATA[
 
			// up-up-down-down-left-right-left-right-B-A
			public static const KONAMI_CODE:String = "UUDDLRLRBA";
 
			// signature
			private var signatureKeySequence:String = "";
 
			private function init():void{
				systemManager.stage.addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown);
			}
 
			private function onKeyDown(event:KeyboardEvent):void{
				var keyCode:int = event.keyCode;
 
			    switch (keyCode) {
			        case Keyboard.UP:
			            signatureKeySequence += "U";
			            break;
 
			        case Keyboard.DOWN:
			            signatureKeySequence += "D";
			            break;
 
			        case Keyboard.LEFT:
			            signatureKeySequence += "L";
			            break;
 
			        case Keyboard.RIGHT:
			            signatureKeySequence += "R";
			            break;
 
			        case 66: //Keyboard.B only for AIR :/
			            signatureKeySequence += "B";
			            break;
 
			        case 65: //Keyboard.A only for AIR too :(
			            signatureKeySequence += "A";
			            break;
 
			        default:
			            signatureKeySequence = "";
			            break;
			    }
 
			    // crop sequence
			    signatureKeySequence = signatureKeySequence.substr(0, KONAMI_CODE.length);
 
			    // check for konami code
			    if (signatureKeySequence == KONAMI_CODE) {
			        dispatchEvent(new Event("success"));
			        signatureKeySequence = "";
			    }
 
			}
		]]>
	mx:Script>
 
mx:UIComponent>

thanks to everyone who posted on stack overflow

Hello world!

zombiegx — Thu, 12 Nov 2009 19:50:00 +0000

This is my first post, so hello world!

The idea behind this blog is to create a knowledge base for all my learning experiences as a developer and a software engineer.

Why? Because plenty of times I’ve searched for information on a particular subject and found nothing, forcing me to implement things by myself, so I hope some of the things I do get out there for some poor struggling developer.