AS3 Using a Static Class (Singleton)

package  
{
	import flash.display.MovieClip;
	import flash.events.Event;
	// Every class that import GlobalStatic can share the same method and 
	// singleton class, you dont need instantiate it. 
	// e.g. myGlobalStaticObject = new GlobalStatic();
	// We just use it's name like GlobalStatic.methodName( );
	import com.isgoodstuff.GlobalStatic;
	import flash.text.TextField;
 
	/************************************************************
	 * Description : This is the main actionscript file.
	 * @author Alex T.
	 ***********************************************************/
	public class Main extends MovieClip
	{
		// Note : In this demo, mcGlobalStatic is just a visual representation of the GlobalStatic
		// as everything is stored in memory.
		public var txtBlueScore:TextField;
		public var txtRedScore:TextField;
 
		public function Main() 
		{
			//Resets when the Main starts initializing
			txtRedScore.text = "0";
			txtBlueScore.text = "0";
			// Run all the time, to update the Main's fla txtBlueScore and txtRedScore
			// from GlobalStatic
			this.addEventListener(Event.ENTER_FRAME, handleUpdateScores);
		}
 
		private function handleUpdateScores(event):void {
			txtBlueScore.text = GlobalStatic.blueScore;
			txtRedScore.text = GlobalStatic.redScore;
		}
 
	}
 
}

package com.isgoodstuff 
{
	import flash.display.MovieClip;
	import flash.text.TextField;
 
	/****************************************************************************
	 * Description : This is the mcGlobalStatic / Singleton Class 
	 * actionscript file. Is a good practice to place all your other class 
	 * files inside a sub folders, com means common libraries folder
	 * isgoodstuff can be the company or organization. 
	 * @author Alex T.
	 ***************************************************************************/
	public class GlobalStatic extends MovieClip
	{
		private static var _iRedScore:int = 0;
		private static var _iBlueScore:int = 0;
 
		public function GlobalStatic() 
		{
			// Very useful to cross reference and sending data across classes.
			// See how mcRed and mcBlue get data from each other using
			// globalStatic
			trace("Initializing globalStatic / Singleton Class");
			_iRedScore = 0;
			_iBlueScore = 0;
		}
 
		// This is how to make a setter. So that other class can just use 
		// GlobalStatic.redScore = value; to assign latest redScore
		public static function set redScore(value:int) {
			_iRedScore = value;
		}
 
		// This is how to make a getter. So that other class can just use 
		// var myRedScore =  GlobalStatic.redScore to get latest redScore
		public static function get redScore() {
			return _iRedScore;
		}
 
		// This is how to make a setter. So that other class can just use 
		// GlobalStatic.blueScore = value; to assign latest blueScore
		public static function set blueScore(value:int) {
			_iBlueScore = value;
		}
 
		// This is how to make a getter. So that other class can just use 
		// var myBlueScore = GlobalStatic.blueScore to get latest blueScore
		public static function get blueScore() {
			return _iBlueScore;
		}
 
	}
 
}

package com.isgoodstuff 
{
	import flash.display.MovieClip;
	import flash.events.MouseEvent;
	import flash.text.TextField;
        // To get and receive value from GlobalStatic, we must first include it into our import
	import com.isgoodstuff.GlobalStatic;
 
	/************************************************************
	 * Description : This is the mcRed Class actionscript file.
	 * It is binded to the movieClip in Library named mcRed.
	 * @author Alex T.
	 ***********************************************************/
	public class mcRed extends MovieClip
	{
		// Instance placed in stage must be declared public var before
		// they can be used.
		public var txtRedScore : TextField;
		public var txtBlueScore : TextField;
		public var btnSet:MovieClip;
		public var btnGet:MovieClip;
 
		public function mcRed() 
		{
			//Reseting own numbers in own textfield.
			txtBlueScore.text = "0";
			txtRedScore.text = "0";
			btnGet.addEventListener(MouseEvent.CLICK, handleGetClick );
			btnSet.addEventListener(MouseEvent.CLICK, handleSetClick ) ;
		}
 
		private function handleGetClick(event) :void {
			txtBlueScore.text = String(GlobalStatic.blueScore);
		}
 
		private function handleSetClick(event):void {
			GlobalStatic.redScore = parseInt(txtRedScore.text);
		}
 
	}
 
}

package com.isgoodstuff 
{
	import flash.display.MovieClip;
	import flash.events.MouseEvent;
	import flash.text.TextField;
	// To get and receive value from GlobalStatic, we must first include it into our import
	import com.isgoodstuff.GlobalStatic;
 
	/************************************************************
	 * Description : This is the mcBlue Class actionscript file.
	 *It is binded to the movieClip in Library named mcBlue.
	 * @author Alex T.
	 ***********************************************************/
	public class mcBlue extends MovieClip
	{
		// Instance placed in stage must be declared public var before
		// they can be used.
		public var txtRedScore : TextField;
		public var txtBlueScore : TextField;
		public var btnSet:MovieClip;
		public var btnGet:MovieClip;
 
		public function mcBlue() 
		{
			//Reseting own numbers in own textfield.
			txtBlueScore.text = "0";
			txtRedScore.text = "0";
			btnGet.addEventListener(MouseEvent.CLICK, handleGetClick );
			btnSet.addEventListener(MouseEvent.CLICK, handleSetClick ) ;
		}
 
		private function handleGetClick(event) :void {
			txtRedScore.text = String(GlobalStatic.redScore);
		}
 
		private function handleSetClick(event):void {
			GlobalStatic.blueScore = parseInt(txtBlueScore.text);
		}
 
	}
 
}