Level 1 Frame

stop();

stage.addEventListener(Event.ENTER_FRAME, startLevel1);

//ENGINE LISTENERS
stage.addEventListener(Event.ENTER_FRAME, frameHandler);
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler);
stage.addEventListener(KeyboardEvent.KEY_UP, keyUpHandler);

//PLAYER VARIABLE
var Player:MovieClip;

//MOVEMENT VARIABLES
var jumpCount:Number;
var _isGrounded:Boolean;
var _canMoveRight:Boolean;
var _canMoveLeft:Boolean;

//ARROW KEY BOOLEANS
var _rightKeydown:Boolean;
var _leftKeydown:Boolean;
var _upKeydown:Boolean;
var _downKeydown:Boolean;

//ARRAYS FOR TERRAIN, KEYS, LADDERS, ETC.
var _solidsArray:Array = [];
var _keysArray:Array = [];
var _doorsArray:Array = [];
var _laddersArray:Array = [];

//LEVEL
var _currentLevel:Number = 0;

//STARTS THE LEVEL
function startLevel1(evt:Event):void
{
    //REMOVES EVENT LISTENER
    stage.removeEventListener(Event.ENTER_FRAME, startLevel1);

    //DEFINES CURRENT LEVEL
    _currentLevel = 1;

    //CREATES THE PLAYER
    Player = new mcPlayer();
    Player.x = 20;
    Player.y = stage.stageHeight - 50;
    Player.vx = 0;
    Player.vy = 0;

    //ADDS PLAYER TO THE STAGE
    stage.addChild(Player);

    //DEFINES EACH ARRAY
    _solidsArray = [sldTerrain1, sldTerrain2, sldTerrain3, sldTerrain4, sldTerrain5, sldTerrain6, sldTerrain7, sldTerrain8];
    _keysArray = [key01];
    _doorsArray = [door01];
    _laddersArray = [ladder01];
}

function frameHandler(evt:Event):void
{
    //runs these functions every frame
    applyMovement();
    checkCollision();
}

function keyDownHandler(evt:KeyboardEvent):void
{
    //turns on boolean if key is being pressed
    if (evt.keyCode == Keyboard.UP)
    {
        _upKeydown = true;
    }
    if (evt.keyCode == Keyboard.DOWN)
    {
        _downKeydown = true;
    }
    if (evt.keyCode == Keyboard.RIGHT)
    {
        _rightKeydown = true;
    }
    if (evt.keyCode == Keyboard.LEFT)
    {
        _leftKeydown = true;
    }
}

function keyUpHandler(evt:KeyboardEvent):void
{
    //when you let go of the keys, the booleans turn off
    if (evt.keyCode == Keyboard.UP)
    {
        _upKeydown = false;
    }
    if (evt.keyCode == Keyboard.DOWN)
    {
        _downKeydown = false;
    }
    if (evt.keyCode == Keyboard.RIGHT)
    {
        _rightKeydown = false;
    }
    if (evt.keyCode == Keyboard.LEFT)
    {
        _leftKeydown = false;
    }
}

function applyMovement():void
{
    //HANDLES Y VELOCITY
    for (var i:int = 0; i < 10; i++)
    {
        if (_upKeydown == true)
        {
            if (_isGrounded == true)
            {
                if (_doorsArray[i] != undefined)
                {
                    if (Player.hitTestObject(_doorsArray[i]))
                    {
                        if (_keysArray[i].visible == false)
                        {
                            changeLevel();
                        }
                        else
                        {
                            _isGrounded = false;
                            Player.vy += 12;
                        }
                    }
                    else
                    {
                        _isGrounded = false;
                        Player.vy += 12;
                    }
                }
            }
        }
    }

    //handles velocity in the y direction
    if (_isGrounded == false)
    {
        Player.vy -= 1;
    }
    else
    {
        Player.vy = 0;
    }

    //moves the player in the y direction
    Player.y -= Player.vy;
}

function checkCollision():void
{
    //TERRAIN TOP COLLISION
    for (var i:int = 0; i < _solidsArray.length; i++)
    {
        //if the player hits the top of any solid in the array, he won't move down any more
        if (Player.bottomSide.hitTestObject(_solidsArray[i].hitTop))
        {
            _isGrounded = true;
            jumpCount = 0;
            break;
        }
        else
        {
            _isGrounded = false;
        }
    }
}

function changeLevel():void
{
    //CHANGES CURRENT LEVEL
    if (_currentLevel == 1)
    {
        clearLevel();
        toLevel2();
    }
}

function clearLevel():void
{
    //REMOVES PLAYER FROM THE STAGE
    Player.parent.removeChild(Player);

    //REMOVES EVENT LISTENERS
    stage.removeEventListener(Event.ENTER_FRAME, frameHandler);
    stage.removeEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler);
    stage.removeEventListener(KeyboardEvent.KEY_UP, keyUpHandler);
}

function toLevel2():void
{
    gotoAndStop(10);
}