AS3 Trouble accessing a static class from inside a nested symbol - actionscript-3

Question

So basically this is a question about why my calling class (Door) can not identify this static variable class (Game State). it is throwing a #1009 error saying I can not access with GameState.gameState. On my stage I have a Symbol (CampaignLevel_001) that contains additional symbols like the calling symbol (Door) and above that as a separate Symbol (GameState) so essentially I am having trouble getting a nested symbol / class talking to another class.
package game.GameStates
{
import game.Assets.Player;
import game.Assets.Turret;
import game.Assets.Door;
import flash.events.Event;
import flash.display.MovieClip;
import flash.geom.Point;
import game.Levels.CampaignLevel_001;
public class GameState extends MovieClip
{
//VARIABLES
public var enemyArray : Array;
public var Bullets : Array = new Array();
public var Keys : Array = new Array();
public var HeldKeys : Array = new Array ();
public var Door : Array = new Array();
public var Terrain : Array = new Array();
public var Turrets : Array = new Array ();
public var Blood : Array = new Array ();
public var Shields : Array = new Array ();
public var Levels : Array = new Array ();
public var NumKeys : int;
public var DoorLock : Boolean = false;
public var PlayerSpawnPoint : Point;
public var CampaignSpawnPoint : Point;
public static var gameState : GameState;
public var player : Player;
public var turret : Turret;
public var PlayerLives : int = 99;
public function GameState()
{ // constructor code
gameState = this;
addEventListener(Event.ADDED_TO_STAGE, Awake);
} // constructor code
private function Awake (e : Event) : void
{
enemyArray = new Array();
trace(enemyArray.length);
}
public function OpenDoor () : void
{
if (NumKeys <= 0)
{
DoorLock = true;
}
if (NumKeys > 0)
{
DoorLock = false;
}
}
public function NextLevel () : void
{
RemoveListeners();
trace("SHOULD BE GOING TO THE NEXT LEVEL");
while (Levels.length > 0)
{
for each (var level in Levels)
{
level.NextLevel ();
}
}
}
public function RespawnPlayer () : void
{
//Spawn Player at player start point
player = new Player();
player.x = PlayerSpawnPoint.x;
player.y = PlayerSpawnPoint.y;
addChild(player);
trace("PLAYER ARRAY IS THIS LONG " + enemyArray.length);
trace("spawned Player!");
}
public function setSpellIcons (spell : String , opacity : int) : void
{
if (spell == "dodge")
{
if (opacity == 0)
{
dodgeSymbol.alpha = 0;
}
if (opacity == 1)
{
dodgeSymbol.alpha = 1;
}
}
if (spell == "shield")
{
if (opacity == 0)
{
shieldSymbol.alpha = 0;
}
if (opacity == 1)
{
shieldSymbol.alpha = 1;
}
}
} //public function setSpellIcons (spell : String , opacity : int) : void
public function RemoveListeners() : void
{
while (enemyArray.length > 0)
{
for each (var enemy : MovieClip in enemyArray)
{
enemy.RemovePlayer ();
}
}
while (Door.length > 0)
{
for each (var door : MovieClip in Door)
{
door.RemoveDoorFunctions ();
}
}
while (Bullets.length > 0)
{
for each (var bullet : MovieClip in Bullets)
{
bullet.RemoveProjectile();
}
}
while (Keys.length > 0)
{
for each (var key : MovieClip in Keys)
{
key.RemoveKey ();
}
}
while (Terrain.length > 0)
{
for each (var terrain : MovieClip in Terrain)
{
terrain.RemoveTerrainListeners();
}
}
while (Turrets.length > 0)
{
for each (var turret in Turrets)
{
turret.RemoveTurretListeners();
}
}
while (Blood.length > 0)
{
for each (var splatter in Blood)
{
splatter.RemoveBlood();
}
}
while (Shields.length > 0)
{
for each (var shield in Shields)
{
shield.RemoveShield();
}
}
} //public function RemoveListeners() : void
}
}
The Class that holds (door)
package game.Levels
{
import game.GameStates.GameState;
import flash.display.MovieClip;
import flash.events.Event;
public class CampaignLevel_001 extends MovieClip
{
var currentLevel : int = currentFrame;
public function CampaignLevel_001()
{ // constructor code
addEventListener(Event.ADDED_TO_STAGE, Awake);
}
private function Awake (e : Event) : void
{
GameState.gameState.Levels.push(this);
gotoAndStop(currentLevel);
trace ("CURRENT LEVEL IS " + currentLevel);
}
public function NextLevel () : void
{
var nextLevel : int = currentFrame + 1;
gotoAndStop(nextLevel);
trace ("NEXT LEVEL IS " + nextLevel);
}
}
}
and the calling class (door) is
package game.Assets
{
import flash.display.MovieClip;
import flash.events.Event;
import game.GameStates.GameState;
public class Door extends MovieClip
{
public function Door()
{ // constructor code
addEventListener(Event.ADDED_TO_STAGE, Awake);
}
private function Awake (e : Event) : void
{
GameState.gameState.Door.push(this);
GameState.gameState.OpenDoor ();
stage.addEventListener(Event.ENTER_FRAME, update);
open.alpha = 0;
}
private function update (e : Event) : void
{
if (GameState.gameState.DoorLock == true)
{
open.alpha = 1;
}
if (GameState.gameState.DoorLock == false)
{
open.alpha = 0;
}
}
public function RemoveDoorFunctions () : void
{
GameState.gameState.Door.splice(GameState.gameState.Door.indexOf(this),1);
stage.removeEventListener(Event.ENTER_FRAME, update);
parent.removeChild(this);
}
}
}

Answer 1

It looks like you're trying to make a Singleton, but haven't added the instance function.
change this:
public static var gameState:GameState;
to:
private static var _gameState:GameState;
and remove the constructor gamestate = this;
and add a function:
public static function get gameState():GameState {
if{_gameState == null) {
_gameState = new GameState();
}
return _gameState;
}
You can then call it and only get the one instance of GameState by:
GameState.gameState.DoorLock == true;
and any other function in GameState the same way