TechQA.

*RPG-Engine Troubleshoot (AS3): "Multiple Levels" code snippet returns a "null" HitTestObject

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*Hello!
I'm working on an open-source game engine scripted in AS3
and I am attempting to have the MC advance to another area/level...

*How it Works/The Idea...
When the MC obtains a key, it is used to turn kameHouseLocked to kameHouseOpen. When the kameHouse is set to open the player can hold the "up arrow" towards the door to advance. I have two ways to achieve this, either within a movieclip or by calling whatever second layers are needed layers to the stage. The way my code is currently set up, it is unable to reference the kameHouse which is needed to trigger the event. The logic worked well enough for the key, should I make sure whatever is being referenced in encased within a movieclip? Do I need an independent snippet entirely to handle the collisions? Any help would really be appreciated, I will kindly credit you for any effort/involvement, thank you in advance!

*Output spits this out?

    TypeError: Error #2007: Parameter hitTestObject must be non-null.
     at flash.display::DisplayObject/_hitTest()
     at flash.display::DisplayObject/hitTestObject()
     at pokemongameexperiment/keyDownHandler()

*The Code in Question...

import flash.display.MovieClip;
import flash.events.KeyboardEvent;
import flash.ui.Keyboard;
import flash.events.Event;
import flash.display.Stage;
import flash.events.MouseEvent;


mc.gotoAndStop("standingRight");
toggle_btn.stop();
hide_text.stop();
stop();
//backenvironment.kamiHouse.stop();


var keyCodeToListenForDown = '40'; //downarrow key
var keyCodeToListenForUp = '38'; //uparrow key
var keyCodeToListenForLeft = '37'; //leftarrow key
var keyCodeToListenForRight = '39'; //rightarrow key

var keySinglePress:Boolean = false;
var keyDoublePress:Boolean = false;
var timeToWaitForDoublePress:Number = 300;
var waitingForDoublePress:Boolean = false;

var leftBumping:Boolean = false;
var rightBumping:Boolean = false;
var upBumping:Boolean = false;
var downBumping:Boolean = false;
var leftBumpPoint:Point = new Point(-30, -55);
var rightBumpPoint:Point = new Point(30, -55);
var upBumpPoint:Point = new Point(0, -120);
var downBumpPoint:Point = new Point(0, 0);

var pp:Boolean=true;
var played:Boolean=false;
var mySound:Sound = new MySound();
var myChannel:SoundChannel = new SoundChannel();

var rightPressed:Boolean = new Boolean(false);
var leftPressed:Boolean = new Boolean(false);
var upPressed:Boolean = new Boolean(false);
var downPressed:Boolean = new Boolean(false);
var mcSpeed:Number = 10;

var roshiTimer:int = 0;
var roshiDuration:int = 0;
var roshiFacing:int = 0;
var roshiSpeed:Number = 3
var RF:Array = 
["roshiUpWalk", "roshiDownWalk",
 "roshiLeftWalk", "roshiRightWalk",];
var RX:Array = [0, 0, -1, 1];
var RY:Array = [-1, 1, 0, 0];

var kameKeyCollected:Boolean = false;
var kameHouseOpen:Boolean = false;

var currentLevel:int = 1;


//kameHouse(2).prevBtn.addEventListener(MouseEvent.CLICK, prevSection);

addEventListener(Event.ENTER_FRAME, onRoshi);
toggle_btn.addEventListener(MouseEvent.CLICK, togglePlay);

stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler);
stage.addEventListener(KeyboardEvent.KEY_UP, keyUpHandler);

stage.addEventListener(Event.ENTER_FRAME, gameLoop);
stage.addEventListener(KeyboardEvent.KEY_DOWN, handleKeyDown);
//kameHouse(2).nextBtn.addEventListener(MouseEvent.CLICK, nextSection);



//function prevSection(event:MouseEvent):void
//{
 //var thisLabel:String = pages.currentLabel;
 //var thisLabelNum:String = thisLabel.replace("sct", "");
 //var curNumber:Number = Number(thisLabelNum);
 //var prevNum:Number = curNumber - 1;
 //pages.gotoAndStop("sct" + prevNum);
//}

function handleKeyDown(keyEvent:KeyboardEvent) 
{ 
 if (keyEvent.keyCode == keyCodeToListenForDown)
 {
  keySinglePress = true;
  if (waitingForDoublePress){
   keyDoublePress = true;}
  
  waitingForDoublePress = true;
  
  setTimeout(function() {
      waitingForDoublePress = false;
   keyDoublePress = false;
   }, timeToWaitForDoublePress);
 }
 if (keyDoublePress){
  trace('You logged a double press!')}
  else if (keySinglePress) {
  trace ('You logged a single press!');
 }

 if (keyEvent.keyCode == keyCodeToListenForUp)
 {
  keySinglePress = true;
  if (waitingForDoublePress){
   keyDoublePress = true;}
  
  waitingForDoublePress = true;
  
  setTimeout(function() {
      waitingForDoublePress = false;
   keyDoublePress = false;
   }, timeToWaitForDoublePress);
 }
 if (keyDoublePress){
  trace('You logged a double press!')}
  else if (keySinglePress) {
  trace ('You logged a single press!');
 }
     if (keyEvent.keyCode == keyCodeToListenForLeft)
 {
      keySinglePress = true;
     if (waitingForDoublePress){
   keyDoublePress = true;}
  
  waitingForDoublePress = true;
  
  setTimeout(function() {
      waitingForDoublePress = false;
   keyDoublePress = false;
   }, timeToWaitForDoublePress);
 }
 if (keyDoublePress){
  trace('You logged a double press!')}
  else if (keySinglePress) {
  trace ('You logged a single press!');
 }
  if (keyEvent.keyCode == keyCodeToListenForRight)
 {
  keySinglePress = true;
  if (waitingForDoublePress){
   keyDoublePress = true;}
  
  waitingForDoublePress = true;
  
  setTimeout(function() {
      waitingForDoublePress = false;
   keyDoublePress = false;
   }, timeToWaitForDoublePress);
 }
 if (keyDoublePress){
  trace('You logged a double press!')}
  else if (keySinglePress) {
  trace ('You logged a single press!');
 }
}

 
//hide_text.addEventListener(MouseEvent.CLICK, stopMovie);
function ppState(event:MouseEvent){
if(pp){
stop();
hide_text.gotoAndStop(3);
//hide_text.gotoAndStop('stopText');
pp = false;
}else{
//hide_text.addEventListener(MouseEvent.CLICK, playMovie);
 play(); 
 hide_text.gotoAndStop(1);
 //hide_text.gotoAndStop('playText');
 pp = true;
}
}
hide_text.addEventListener(MouseEvent.CLICK, ppState);
                 
function togglePlay(event:MouseEvent):void
{
   (!played)? played = true : played = false;
   (played)? myChannel=mySound.play():SoundMixer.stopAll();

   (played)? toggle_btn.gotoAndStop(2):toggle_btn.gotoAndStop(1);
    myChannel.addEventListener(Event.SOUND_COMPLETE,soundCompleted);
}
function soundCompleted(event:Event):void
{
 played = false;
 toggle_btn.gotoAndStop(1);
}





function nextLevel():void
{
 currentLevel++;
 trace("Next Level: " + currentLevel);
 if(currentLevel == 2)
 {
  gotoLevel2();
 }
}
function gotoLevel2():void
{
 //gotoAndStop(2);
 //frontenvironment2.gotoAndStop;
 backenvironment.gotoAndStop(2);
 frontenvironment.gotoAndStop(2);
 gotoAndStop(frontenvironment2);
 //scrollx = 0;
 //scrolly = 0;
 //backenvironment.gotoAndStop
 //backenvironment.gotoAndStop
}

function gameLoop(loopEvent:Event):void 
{         
    if(rightPressed && mc.currentLabel !="walkingRight" && upPressed == false && downPressed == false)
 { 
       mc.gotoAndStop("walkingRight");
    }
    if(rightPressed && mc.currentLabel =="walkingRight")
    {
    if(mc.x < 800)
    {
          mc.x += mcSpeed;
    }

    else if (backenvironment.x > -650) 
    {
    backenvironment.x -= mcSpeed; 
    frontenvironment.x -= mcSpeed;
    }
    } 
  if(keyDoublePress && mc.currentLabel =="walkingRight")
    {
    if(mc.x < 800)
    {
          mc.x += mcSpeed * 1.05;
    }

    else if (backenvironment.x > -650) 
    {
    backenvironment.x -= mcSpeed; 
    frontenvironment.x -= mcSpeed;
    }

    }
 
    if(leftPressed && mc.currentLabel !="walkingLeft" && upPressed == false && downPressed == false)
    {
       mc.gotoAndStop("walkingLeft");
    }
    if(leftPressed && mc.currentLabel =="walkingLeft")
    {
    if(mc.x > 200)
    {
          mc.x -= mcSpeed;
    }
    else if (backenvironment.x < -130)
    {
       backenvironment.x += mcSpeed;
       frontenvironment.x += mcSpeed;
    }
 }
 if(keyDoublePress && mc.currentLabel =="walkingLeft")
    {
    if(mc.x > 200) 
    {
          mc.x -= mcSpeed * 1.05;
       }
    else if (backenvironment.x < -130) 
    {
       backenvironment.x += mcSpeed;
       frontenvironment.x += mcSpeed;
    }
    }
 
    if(upPressed && mc.currentLabel != "walkingUp" && rightPressed == false && leftPressed == false)  
 {
       mc.gotoAndStop("walkingUp");
    }
    if(upPressed && mc.currentLabel == "walkingUp")
    {
    if(mc.y > 200) 
    {
          mc.y -= mcSpeed;10
       }
    else if (backenvironment.y < -10) 
    {
       backenvironment.y += mcSpeed;
       frontenvironment.y += mcSpeed;
    }
 }
 
    if(keyDoublePress && mc.currentLabel =="walkingUp")
       {
    if(mc.y > 200) 
    {
          mc.y -= mcSpeed * 1.05;10
       }
    else if (backenvironment.y < -10) 
    {
       backenvironment.y += mcSpeed;
       frontenvironment.y += mcSpeed;
    }
  
 }
    
    if(downPressed && mc.currentLabel != "walkingDown" && rightPressed == false && leftPressed == false)
    {
       mc.gotoAndStop("walkingDown");
    }
 
    if (downPressed && mc.currentLabel == "walkingDown")
    {
    if(mc.y < 485) 
    {
          mc.y += mcSpeed;
       }
    else if (backenvironment.y > -577) 
       {
     backenvironment.y -= mcSpeed;
     frontenvironment.y -= mcSpeed;
       }
    }
    if (keyDoublePress && mc.currentLabel == "walkingDown")
    {
   if(mc.y < 485)
   {
    mc.y += (mcSpeed * 1.05);
   }
   else if (backenvironment.y > -577)
   {
    backenvironment.y -= mcSpeed;
    frontenvironment.y -= mcSpeed;
   } 
 }
//add more walking functionality here if needed (ex: multi-directional).
}   


//Roshi's_Brain:
function onRoshi(e:Event):void
{
   if(mc.hitTestObject(backenvironment.Roshi))
   {
      myText.text = "Master Roshi: R- Red? Oh dear... this is bad. I've barely introduced myself. I'm Master Roshi, headmaster of the Turtle School of Martial Arts!"; 
   }
   else
   {
   myText.text = "Master Roshi: Red... You have to find Goku. My back, it's delicate!"; 

      roshiTimer ++; 

      if (roshiTimer > roshiDuration)
      {
         roshiDuration = 10 + Math.random() * 25;
         roshiTimer = 0;
  
         while (backenvironment.Roshi.currentLabel == RF[roshiFacing])
         {
            roshiFacing = Math.random() * 4;
         }

      backenvironment.Roshi.gotoAndStop(RF[roshiFacing]);
   }

    backenvironment.Roshi.x += RX[roshiFacing] * roshiSpeed;
    backenvironment.Roshi.y += RY[roshiFacing] * roshiSpeed;
}
if(kameKeyCollected == false)
{ // if we still haven't collected the key
 if(mc.hitTestObject(backenvironment.kameKey))
 { // and if the player collides with the key
  backenvironment.kameKey.visible = false; // hide the key from view
  kameKeyCollected = true; // set our Boolean to true
 }
 
}

if(kameHouseOpen == false)
{ // if the door hasn't been opened yet
 if(kameKeyCollected == true)
 { // and if the player has already collected the key
     if(mc.hitTestObject(backenvironment.kameHouse))
  { // check if the door and the player are touching
        // if all of these conditions are met...
        backenvironment.kameHouse.gotoAndStop(2); // ...switch the door's image to its 2nd frame
        kameHouseOpen = true; // ...set the variable to true
        }
    }
}

}
function keyDownHandler(keyEvent:KeyboardEvent):void
{
   if(keyEvent.keyCode == Keyboard.RIGHT)
   {
    rightPressed = true;
   }
   else if(keyEvent.keyCode == Keyboard.LEFT)
   {
    leftPressed = true;
   }
   else if(keyEvent.keyCode == Keyboard.DOWN)
   {
    downPressed = true;
   }
   else if(keyEvent.keyCode == Keyboard.UP)
   {
    upPressed = true;
    if(kameHouseOpen && mc.hitTestObject(backenvironment.kameHouse.kameHouseLocked))
    { 
       nextLevel(); 
    }
   }
}

function keyUpHandler(keyEvent:KeyboardEvent):void
{
   if(keyEvent.keyCode == Keyboard.RIGHT)
   {
    rightPressed = false;
    mc.gotoAndStop("standingRight");
   }
   else if(keyEvent.keyCode == Keyboard.LEFT)
   {
 leftPressed = false;
 mc.gotoAndStop("standingLeft");
   }
   else if (keyEvent.keyCode == Keyboard.DOWN)
   {
       downPressed = false;
    mc.gotoAndStop("standingDown");
   }
   else if(keyEvent.keyCode == Keyboard.UP)
   {
    upPressed = false;
    mc.gotoAndStop("standingUp");
   }
}

Revised Code 

///////////////////////////////////////////////////////////////////////////
///Dev Notes: Poke Ball Z (Ver. 0.3.8)//////////////////////////////////////
///////////////////////////////////////////////////////////////////////////
import flash.display.MovieClip;
import flash.events.KeyboardEvent;
import flash.ui.Keyboard;
import flash.events.Event;
import flash.display.Stage;
import flash.events.MouseEvent;


mc.gotoAndStop("standingRight");
toggle_btn.stop();
hide_text.stop();
stop();
//backenvironment.kamiHouse.stop();


var keyCodeToListenForDown = '40'; //downarrow key
var keyCodeToListenForUp = '38'; //uparrow key
var keyCodeToListenForLeft = '37'; //leftarrow key
var keyCodeToListenForRight = '39'; //rightarrow key

var keySinglePress:Boolean = false;
var keyDoublePress:Boolean = false;
var timeToWaitForDoublePress:Number = 300;
var waitingForDoublePress:Boolean = false;

var leftBumping:Boolean = false;
var rightBumping:Boolean = false;
var upBumping:Boolean = false;
var downBumping:Boolean = false;
var leftBumpPoint:Point = new Point(-30, -55);
var rightBumpPoint:Point = new Point(30, -55);
var upBumpPoint:Point = new Point(0, -120);
var downBumpPoint:Point = new Point(0, 0);

var pp:Boolean=true;
var played:Boolean=false;
var mySound:Sound = new MySound();
var myChannel:SoundChannel = new SoundChannel();

var rightPressed:Boolean = new Boolean(false);
var leftPressed:Boolean = new Boolean(false);
var upPressed:Boolean = new Boolean(false);
var downPressed:Boolean = new Boolean(false);
var mcSpeed:Number = 10;

var roshiTimer:int = 0;
var roshiDuration:int = 0;
var roshiFacing:int = 0;
var roshiSpeed:Number = 3
var RF:Array = 
["roshiUpWalk", "roshiDownWalk",
 "roshiLeftWalk", "roshiRightWalk",];
var RX:Array = [0, 0, -1, 1];
var RY:Array = [-1, 1, 0, 0];

var kameKeyCollected:Boolean = false;
var kameHouseOpen:Boolean = false;

var currentLevel:int = 1;


//kameHouse(2).prevBtn.addEventListener(MouseEvent.CLICK, prevSection);

addEventListener(Event.ENTER_FRAME, onRoshi);
toggle_btn.addEventListener(MouseEvent.CLICK, togglePlay);

stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler);
stage.addEventListener(KeyboardEvent.KEY_UP, keyUpHandler);

stage.addEventListener(Event.ENTER_FRAME, gameLoop);
stage.addEventListener(KeyboardEvent.KEY_DOWN, handleKeyDown);
//kameHouse(2).nextBtn.addEventListener(MouseEvent.CLICK, nextSection);



//function prevSection(event:MouseEvent):void
//{
 //var thisLabel:String = pages.currentLabel;
 //var thisLabelNum:String = thisLabel.replace("sct", "");
 //var curNumber:Number = Number(thisLabelNum);
 //var prevNum:Number = curNumber - 1;
 //pages.gotoAndStop("sct" + prevNum);
//}

function handleKeyDown(keyEvent:KeyboardEvent) 
{ 
 if (keyEvent.keyCode == keyCodeToListenForDown)
 {
  keySinglePress = true;
  if (waitingForDoublePress){
   keyDoublePress = true;}
  
  waitingForDoublePress = true;
  
  setTimeout(function() {
      waitingForDoublePress = false;
   keyDoublePress = false;
   }, timeToWaitForDoublePress);
 }
 if (keyDoublePress){
  trace('You logged a double press!')}
  else if (keySinglePress) {
  trace ('You logged a single press!');
 }

 if (keyEvent.keyCode == keyCodeToListenForUp)
 {
  keySinglePress = true;
  if (waitingForDoublePress){
   keyDoublePress = true;}
  
  waitingForDoublePress = true;
  
  setTimeout(function() {
      waitingForDoublePress = false;
   keyDoublePress = false;
   }, timeToWaitForDoublePress);
 }
 if (keyDoublePress){
  trace('You logged a double press!')}
  else if (keySinglePress) {
  trace ('You logged a single press!');
 }
     if (keyEvent.keyCode == keyCodeToListenForLeft)
 {
      keySinglePress = true;
     if (waitingForDoublePress){
   keyDoublePress = true;}
  
  waitingForDoublePress = true;
  
  setTimeout(function() {
      waitingForDoublePress = false;
   keyDoublePress = false;
   }, timeToWaitForDoublePress);
 }
 if (keyDoublePress){
  trace('You logged a double press!')}
  else if (keySinglePress) {
  trace ('You logged a single press!');
 }
  if (keyEvent.keyCode == keyCodeToListenForRight)
 {
  keySinglePress = true;
  if (waitingForDoublePress){
   keyDoublePress = true;}
  
  waitingForDoublePress = true;
  
  setTimeout(function() {
      waitingForDoublePress = false;
   keyDoublePress = false;
   }, timeToWaitForDoublePress);
 }
 if (keyDoublePress){
  trace('You logged a double press!')}
  else if (keySinglePress) {
  trace ('You logged a single press!');
 }
}

 
//hide_text.addEventListener(MouseEvent.CLICK, stopMovie);
function ppState(event:MouseEvent){
if(pp){
stop();
hide_text.gotoAndStop(3);
//hide_text.gotoAndStop('stopText');
pp = false;
}else{
//hide_text.addEventListener(MouseEvent.CLICK, playMovie);
 play(); 
 hide_text.gotoAndStop(1);
 //hide_text.gotoAndStop('playText');
 pp = true;
}
}
hide_text.addEventListener(MouseEvent.CLICK, ppState);
                 
function togglePlay(event:MouseEvent):void
{
   (!played)? played = true : played = false;
   (played)? myChannel=mySound.play():SoundMixer.stopAll();

   (played)? toggle_btn.gotoAndStop(2):toggle_btn.gotoAndStop(1);
    myChannel.addEventListener(Event.SOUND_COMPLETE,soundCompleted);
}
function soundCompleted(event:Event):void
{
 played = false;
 toggle_btn.gotoAndStop(1);
}





function nextLevel():void
{
 currentLevel++;
 trace("Next Level: " + currentLevel);
 if(currentLevel == 2)
 {
  gotoLevel2();
 }
}
function gotoLevel2():void
{
 //gotoAndStop(2);
 //frontenvironment2.gotoAndStop;
 backenvironment.gotoAndStop(2);
 backenvironment.kameHouseOpen.gotoAndStop(1);
 frontenvironment.gotoAndStop(2);
 gotoAndStop(frontenvironment2);
 //scrollx = 0;
 //scrolly = 0;
 //backenvironment.gotoAndStop
 //backenvironment.gotoAndStop
}
function keyUpHandler(keyEvent:KeyboardEvent):void
{
   if(keyEvent.keyCode == Keyboard.RIGHT)
   {
    rightPressed = false;
    mc.gotoAndStop("standingRight");
   }
   else if(keyEvent.keyCode == Keyboard.LEFT)
   {
 leftPressed = false;
 mc.gotoAndStop("standingLeft");
   }
   else if (keyEvent.keyCode == Keyboard.DOWN)
   {
       downPressed = false;
    mc.gotoAndStop("standingDown");
   }
   else if(keyEvent.keyCode == Keyboard.UP)
   {
    upPressed = false;
    mc.gotoAndStop("standingUp");
   }
}
function keyDownHandler(keyEvent:KeyboardEvent):void
{
   if(keyEvent.keyCode == Keyboard.RIGHT)
   {
    rightPressed = true;
   }
   else if(keyEvent.keyCode == Keyboard.LEFT)
   {
    leftPressed = true;
   }
   else if(keyEvent.keyCode == Keyboard.DOWN)
   {
    downPressed = true;
   }
   else if(keyEvent.keyCode == Keyboard.UP)
   {
    upPressed = true;
    if(kameHouseOpen && mc.hitTestObject(backenvironment.kameHouse))
    { 
       nextLevel(); 
    }
   }
}

function gameLoop(loopEvent:Event):void 
{         
    if(rightPressed && mc.currentLabel !="walkingRight" && upPressed == false && downPressed == false)
 { 
       mc.gotoAndStop("walkingRight");
    }
    if(rightPressed && mc.currentLabel =="walkingRight")
    {
    if(mc.x < 800)
    {
          mc.x += mcSpeed;
    }

    else if (backenvironment.x > -650) 
    {
    backenvironment.x -= mcSpeed; 
    frontenvironment.x -= mcSpeed;
    }
    } 
  if(keyDoublePress && mc.currentLabel =="walkingRight")
    {
    if(mc.x < 800)
    {
          mc.x += mcSpeed * 1.05;
    }

    else if (backenvironment.x > -650) 
    {
    backenvironment.x -= mcSpeed; 
    frontenvironment.x -= mcSpeed;
    }

    }
 
    if(leftPressed && mc.currentLabel !="walkingLeft" && upPressed == false && downPressed == false)
    {
       mc.gotoAndStop("walkingLeft");
    }
    if(leftPressed && mc.currentLabel =="walkingLeft")
    {
    if(mc.x > 200)
    {
          mc.x -= mcSpeed;
    }
    else if (backenvironment.x < -130)
    {
       backenvironment.x += mcSpeed;
       frontenvironment.x += mcSpeed;
    }
 }
 if(keyDoublePress && mc.currentLabel =="walkingLeft")
    {
    if(mc.x > 200) 
    {
          mc.x -= mcSpeed * 1.05;
       }
    else if (backenvironment.x < -130) 
    {
       backenvironment.x += mcSpeed;
       frontenvironment.x += mcSpeed;
    }
    }
 
    if(upPressed && mc.currentLabel != "walkingUp" && rightPressed == false && leftPressed == false)  
 {
       mc.gotoAndStop("walkingUp");
    }
    if(upPressed && mc.currentLabel == "walkingUp")
    {
    if(mc.y > 200) 
    {
          mc.y -= mcSpeed;10
       }
    else if (backenvironment.y < -10) 
    {
       backenvironment.y += mcSpeed;
       frontenvironment.y += mcSpeed;
    }
 }
 
    if(keyDoublePress && mc.currentLabel =="walkingUp")
       {
    if(mc.y > 200) 
    {
          mc.y -= mcSpeed * 1.05;10
       }
    else if (backenvironment.y < -10) 
    {
       backenvironment.y += mcSpeed;
       frontenvironment.y += mcSpeed;
    }
  
 }
    
    if(downPressed && mc.currentLabel != "walkingDown" && rightPressed == false && leftPressed == false)
    {
       mc.gotoAndStop("walkingDown");
    }
 
    if (downPressed && mc.currentLabel == "walkingDown")
    {
    if(mc.y < 485) 
    {
          mc.y += mcSpeed;
       }
    else if (backenvironment.y > -577) 
       {
     backenvironment.y -= mcSpeed;
     frontenvironment.y -= mcSpeed;
       }
    }
    if (keyDoublePress && mc.currentLabel == "walkingDown")
    {
   if(mc.y < 485)
   {
    mc.y += (mcSpeed * 1.05);
   }
   else if (backenvironment.y > -577)
   {
    backenvironment.y -= mcSpeed;
    frontenvironment.y -= mcSpeed;
   } 
 }
//add more walking functionality here if needed (ex: multi-directional).
}   


//Roshi's_Brain:
function onRoshi(e:Event):void
{
   if(mc.hitTestObject(backenvironment.Roshi))
   {
      myText.text = "Master Roshi: R- Red? Oh dear... this is bad. I've barely introduced myself. I'm Master Roshi, headmaster of the Turtle School of Martial Arts!"; 
   }
   else
   {
   myText.text = "Master Roshi: Red... You have to find Goku. My back, it's delicate!"; 

      roshiTimer ++; 

      if (roshiTimer > roshiDuration)
      {
         roshiDuration = 10 + Math.random() * 25;
         roshiTimer = 0;
  
         while (backenvironment.Roshi.currentLabel == RF[roshiFacing])
         {
            roshiFacing = Math.random() * 4;
         }

      backenvironment.Roshi.gotoAndStop(RF[roshiFacing]);
   }

    backenvironment.Roshi.x += RX[roshiFacing] * roshiSpeed;
    backenvironment.Roshi.y += RY[roshiFacing] * roshiSpeed;
}
if(kameKeyCollected == false)
{ // if we still haven't collected the key
 if(mc.hitTestObject(backenvironment.kameKey))
 { // and if the player collides with the key
  backenvironment.kameKey.visible = false; // hide the key from view
  kameKeyCollected = true; // set our Boolean to true
 }
 
}

if(kameHouseOpen == false)
{ // if the door hasn't been opened yet
 if(kameKeyCollected == true)
 { // and if the player has already collected the key
     if(mc.hitTestObject(backenvironment.kameHouse))
  { // check if the door and the player are touching
        // if all of these conditions are met...
        backenvironment.kameHouseOpen.gotoAndStop(1); // ...switch the door's image to its 2nd frame
  kameHouseOpen = true; // ...set the variable to true
        }
    }
}
}


//function nextSection(event:MouseEvent):void
//{
 //var thisLabel:String = currentLabel; //gets current frame label as string
 //var thisLabelNum:String = thisLabel.replace("sct", ""); //cuts the leading letters off of the number
 //var curNumber:Number = Number(thisLabelNum); //converts that string numbers to a real number
 //if (curNumber < 5)
    //{
  //var nextNum:Number = curNumber + 1;
  //gotoAndStop("scl" + nextNum);
 //}
//}

New Error Code

You logged a single press!
Next Level: 2
ArgumentError: Error #2109: Frame label null not found in scene Scene 1.
 at flash.display::MovieClip/gotoAndStop()
 at pokemongameexperiment/gotoLevel2()
 at pokemongameexperiment/nextLevel()
 at pokemongameexperiment/keyDownHandler()
You logged a single press!
You logged a single press!
You logged a single press!
You logged a single press!
Next Level: 3
You logged a single press! //etc.

*Newgrounds Link to test the game as is... https://www.newgrounds.com/dump/item/49a43c79e613ec32e547dc1ae8851978

actionscript-3 flash actionscript adobe flash-cs4
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