Resetting a game?

I am creating a game where the challange is to collect all the coins while avoiding obsticules and before the times runs out. What I am trying to do is when the game runs out of time or the player has died, The player simply presses the R key on their keyboard to reset the level they are playing on. With my attempt of coding I can get the game to reset and put all the collectables back in place but the problem I am having is that the camera that is following the character is not resetting correctly. The 2nd problem I am having is that the game is not resetting the variables/arrays so I can still open certain colour coded doors without having the keys or number amount of collected coins needed.

How can I fix this problem? Is there an easier way to create a reset function? Below is my attempt to try and fix it.

//========== resetting game ============
stage.addEventListener(KeyboardEvent.KEY_DOWN, resetKey);

function resetKey(event:KeyboardEvent):void {

if (event.keyCode == 82) {
 
 
  var gameSpace:MovieClip = new MovieClip();
addChild(gameSpace);
gameSpace.x = -5 * 48 + 5;
gameSpace.y = -5 * 48 + 5;

gameSpace.addEventListener(Event.ENTER_FRAME, updateGame);

var levelMask:Mask = new Mask();
addChild(levelMask);

myTimer.addEventListener(TimerEvent.TIMER, countdown);
myTimer.start();

stage.addEventListener(KeyboardEvent.KEY_DOWN, kdHandler);
stage.addEventListener(KeyboardEvent.KEY_UP, kuHandler);

var north,south,east,west; // to control motion of gameSpace
north = south = east = west = false;

var hasRedKey,hasGreenKey,hasYellowKey,hasBlueKey;
hasRedKey = hasGreenKey = hasYellowKey = hasBlueKey = false;

var levelStart:  Array = new Array();
var displayMap:Array= new Array();
var cols:int;
var rows:int;

var chip:Chip = new Chip();

setUpLevelMap();
drawLevelMap();

switch (levelStart) {

        case EMPTY :
  case ICCHIP :
  case HINT:
  case KEY_RED:
  case KEY_BLUE:
  case KEY_YELLOW:
  case KEY_GREEN:
  case DOOR_BLUE:
  case DOOR_RED:
  case DOOR_YELLOW:
  case DOOR_GREEN:
  
  
  
   
  
}
}
}