Imports System.IO
Imports System.Text.Json
Imports System.Text.Json.Serialization
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.ComponentModel
Imports System.Resources
Imports System.Drawing.Imaging
Imports System.Reflection

Public Class frmGame
    Private baddyMovementTimer As Timer

    Private baddies As New List(Of Baddy)
    Private lastDirection As String = "Left" ' Default to left
    Private lastMoveTime As DateTime
    Private idleTimer As Timer

    Private doorImage As Image
    Private doorAnimationTimer As Timer
    Private doorX As Integer
    Private doorY As Integer
    Private doorAnimationStartTime As DateTime

    Private movingObjects As New List(Of MovingObject)()
    Private movingObjectsTimer As Timer

    Private CollectedCoins As Integer = 0
    Private totalCoins As Integer = 0

    Private playerX As Integer
    Private playerY As Integer
    Private hasKey As Boolean = False
    Private justWarped As Boolean = False
    Public Property RoomFilePath As String
    Private SelectedMusic As String

    Private Const INDENT As Integer = 20
    Private Const WALL_THICKNESS As Integer = 10

    Private SQCOUNTX As Integer
    Private SQCOUNTY As Integer

    Private SQSizeX As Integer
    Private SQSizeY As Integer

    Private wallsHatchStyle As HatchStyle
    Private wallsColor1 As Color
    Private wallsColor2 As Color
    Private floorsHatchStyle As HatchStyle
    Private floorsColor1 As Color
    Private floorsColor2 As Color

    Private verticalWalls()() As Boolean
    Private horizontalWalls()() As Boolean
    Private placedItems()() As String
    Private verticalWallItems()() As String
    Private horizontalWallItems()() As String
    Private floorsUseEdgeStyle()() As Boolean

    Private imageDictionary As New Dictionary(Of String, Image)
    Private animatedImages As New List(Of Image)

    Private animationTimer As Timer
    Private isRoomDataLoaded As Boolean = False

    Private ReadOnly projectDir As String = GetProjectDirectory()
    Private ReadOnly ImagesFolder As String = Path.Combine(projectDir, "Data", "Images")
    Private ReadOnly musicFolder As String = Path.Combine(projectDir, "Data", "Sound/Music")
    Private ReadOnly SFXFolder As String = Path.Combine(projectDir, "Data", "Sound/Sound Effects")
    Private ReadOnly musicManager As New MusicManager()
    Private ReadOnly sfxManager As New SFXManager(SFXFolder)

    Private totalKeys As Integer = 0
    Private collectedKeys As Integer = 0

    Private resourceManager As ResourceManager

    Private itemAnimations As New List(Of ItemAnimation)()
    Private itemAnimationTimer As Timer

    ' New property to determine if gradient background should be used
    Public Property useGradient As Boolean = False

    ' Timer for redrawing
    Private redrawTimer As Timer

    Private Class MovingObject
        Public Property X As Integer
        Public Property Y As Integer
        Public Property DeltaX As Integer
        Public Property DeltaY As Integer
        Public Property IsBall As Boolean
        Public Property IsBlock As Boolean
        Public Property MoveInterval As Integer
        Public Property NextMoveTime As DateTime
    End Class

    Private Class ItemAnimation
        Public Property ItemImage As Image
        Public Property StartX As Integer
        Public Property StartY As Integer
        Public Property EndX As Integer
        Public Property EndY As Integer
        Public Property CurrentX As Integer
        Public Property CurrentY As Integer
        Public Property AnimationDuration As Integer
        Public Property StartTime As DateTime

        Public Sub New(itemImage As Image, startX As Integer, startY As Integer, endX As Integer, endY As Integer, animationDuration As Integer)
            Me.ItemImage = itemImage
            Me.StartX = startX
            Me.StartY = startY
            Me.EndX = endX
            Me.EndY = endY
            Me.CurrentX = startX
            Me.CurrentY = startY
            Me.AnimationDuration = animationDuration
            Me.StartTime = DateTime.Now
        End Sub

        Public Function IsAnimationComplete() As Boolean
            Return (DateTime.Now - StartTime).TotalMilliseconds >= AnimationDuration
        End Function

        Public Sub UpdatePosition()
            Dim elapsedTime As Integer = CInt((DateTime.Now - StartTime).TotalMilliseconds)
            Dim progress As Double = elapsedTime / AnimationDuration
            CurrentX = StartX + CInt((EndX - StartX) * progress)
            CurrentY = StartY + CInt((EndY - StartY) * progress)
        End Sub
    End Class

    Friend Class Baddy
        Public Property X As Integer
        Public Property Y As Integer
        Public Property CurrentDirection As String
        Public Property ImageKey As String

        Public Sub New(startX As Integer, startY As Integer, imageKey As String)
            Me.X = startX
            Me.Y = startY
            Me.CurrentDirection = "Right" ' Start moving to the right
            Me.ImageKey = imageKey
        End Sub
    End Class

#Region "Initialization"
    Public Sub New()
        InitializeComponent()
        resourceManager = New ResourceManager("Enigma.frmGame", GetType(frmGame).Assembly)
        InitializeSoundEffects()

        ' Enable double buffering for the form
        Me.DoubleBuffered = True

        ' Enable double buffering for the PictureBox
        EnableDoubleBuffering(picTest)

        ' Initialize the idle timer
        idleTimer = New Timer() With {.Interval = 250} ' 1 second
        AddHandler idleTimer.Tick, AddressOf OnIdleTick
        idleTimer.Start()
    End Sub

    Private Sub EnableDoubleBuffering(control As Control)
        Dim propertyInfo As PropertyInfo = control.GetType().GetProperty("DoubleBuffered", BindingFlags.NonPublic Or BindingFlags.Instance)
        propertyInfo.SetValue(control, True, Nothing)
    End Sub

    Private Sub frmGame_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        InitializeImages()
        LoadRoomData()
        StartAnimationTimer()
        FindPlayerStartPosition()
        AddObjectsOnFlippersToMovingObjects()
        PlaySelectedMusic()

        ' Initialize the redraw timer
        redrawTimer = New Timer() With {.Interval = 50} ' 20 times a second
        AddHandler redrawTimer.Tick, AddressOf OnRedrawTick
        redrawTimer.Start()

        itemAnimationTimer = New Timer() With {.Interval = 16} ' Approximately 60 FPS
        AddHandler itemAnimationTimer.Tick, AddressOf OnItemAnimationTick
        itemAnimationTimer.Start()
    End Sub

    Private Sub InitializeImages()
        Try
            ' Load images into the imageDictionary
            imageDictionary("picBlock1") = Image.FromFile(Path.Combine(ImagesFolder, "Block.png"))
            imageDictionary("picBall") = Image.FromFile(Path.Combine(ImagesFolder, "Ball.gif"))
            imageDictionary("picCoin") = Image.FromFile(Path.Combine(ImagesFolder, "Coin.gif"))
            imageDictionary("picFinish") = Image.FromFile(Path.Combine(ImagesFolder, "Finish.gif"))
            imageDictionary("picFlipper1") = Image.FromFile(Path.Combine(ImagesFolder, "Flipper1.gif"))
            imageDictionary("picFlipper2") = Image.FromFile(Path.Combine(ImagesFolder, "Flipper2.gif"))
            imageDictionary("picFlipper3") = Image.FromFile(Path.Combine(ImagesFolder, "Flipper3.gif"))
            imageDictionary("picFlipper4") = Image.FromFile(Path.Combine(ImagesFolder, "Flipper4.gif"))
            imageDictionary("picGate") = Image.FromFile(Path.Combine(ImagesFolder, "Gate.gif"))
            imageDictionary("picKey") = Image.FromFile(Path.Combine(ImagesFolder, "Key.gif"))
            imageDictionary("picLazer1") = Image.FromFile(Path.Combine(ImagesFolder, "Lazer1.gif"))
            imageDictionary("picLazer2") = Image.FromFile(Path.Combine(ImagesFolder, "Lazer2.gif"))
            imageDictionary("picWarp") = Image.FromFile(Path.Combine(ImagesFolder, "Warp.gif"))
            imageDictionary("picWarp2") = Image.FromFile(Path.Combine(ImagesFolder, "Warp2.gif"))
            imageDictionary("picStart") = Image.FromFile(Path.Combine(ImagesFolder, "Guy.gif"))
            imageDictionary("picStartLeft") = Image.FromFile(Path.Combine(ImagesFolder, "Guy Left.gif"))
            imageDictionary("picStartRight") = Image.FromFile(Path.Combine(ImagesFolder, "Guy Right.gif"))
            imageDictionary("picBlockStopper1") = Image.FromFile(Path.Combine(ImagesFolder, "Debris1.png"))
            imageDictionary("picBaddy1") = Image.FromFile(Path.Combine(ImagesFolder, "Baddy1.gif"))
            imageDictionary("picBaddy2") = Image.FromFile(Path.Combine(ImagesFolder, "Baddy2.gif"))
            imageDictionary("picBaddy3") = Image.FromFile(Path.Combine(ImagesFolder, "Baddy3.gif"))
            imageDictionary("picBaddy4") = Image.FromFile(Path.Combine(ImagesFolder, "Baddy4.gif"))
            imageDictionary("picExplosion") = Image.FromFile(Path.Combine(ImagesFolder, "Explosion.gif")) ' Load explosion image

            ' Extract the first frame of the door image
            doorImage = ExtractFirstFrame(imageDictionary("picGate"))
            Dim animatedImageKeys As String() = {
        "picLazer1", "picLazer2", "picFlipper1", "picFlipper2",
        "picFlipper3", "picFlipper4", "picCoin", "picGate",
        "picKey", "picFinish", "picBall", "picWarp", "picWarp2", "picStart", "picStartLeft", "picStartRight",
        "picBaddy1", "picBaddy2", "picBaddy3", "picBaddy4", "picExplosion" ' Add explosion image to animated images
    }

            For Each imgKey In animatedImageKeys
                If imageDictionary.ContainsKey(imgKey) Then
                    Dim img As Image = imageDictionary(imgKey)
                    animatedImages.Add(img)
                    ImageAnimator.Animate(img, AddressOf OnFrameChanged)
                End If
            Next
        Catch ex As Exception
            MessageBox.Show("Error loading images: " & ex.Message)
        End Try
    End Sub

    Private Function ExtractFirstFrame(animatedImage As Image) As Image
        Dim frameDimensions As New FrameDimension(animatedImage.FrameDimensionsList(0))
        animatedImage.SelectActiveFrame(frameDimensions, 0)
        Return New Bitmap(animatedImage)
    End Function

    Private Sub InitializeSoundEffects()
        ' sfxManager is already initialized in the constructor
    End Sub

    Private Sub LoadRoomData()
        If Not String.IsNullOrEmpty(RoomFilePath) AndAlso File.Exists(RoomFilePath) Then
            LoadRoomFromFile(RoomFilePath)
            AddBaddiesOnGrid() ' Add this method to place baddies
            StartBaddyMovementTimer() ' Start moving baddies
        Else
            MessageBox.Show("Room file not found.")
            Me.Close()
        End If
    End Sub

    Private Sub StartAnimationTimer()
        animationTimer = New Timer() With {.Interval = 33} ' Approximately 30 FPS
        AddHandler animationTimer.Tick, AddressOf OnAnimationTick
        animationTimer.Start()
    End Sub

    Private Sub FindPlayerStartPosition()
        For x As Integer = 0 To placedItems.Length - 1
            If placedItems(x) IsNot Nothing Then
                For y As Integer = 0 To placedItems(x).Length - 1
                    Dim imageKey As String = placedItems(x)(y)
                    If imageKey = "picStart" Then
                        playerX = x
                        playerY = y
                        Exit Sub
                    End If
                Next
            End If
        Next
    End Sub

    Private Sub AddObjectsOnFlippersToMovingObjects()
        For x As Integer = 0 To SQCOUNTX - 1
            For y As Integer = 0 To SQCOUNTY - 1
                Dim item As String = placedItems(x)(y)
                If item = "picBlock1" OrElse item = "picBall" Then
                    Dim movingObject As New MovingObject With {
                .X = x,
                .Y = y,
                .IsBlock = (item = "picBlock1"),
                .IsBall = (item = "picBall"),
                .DeltaX = 0,
                .DeltaY = 0
            }

                    CheckForFlipper(movingObject)

                    If movingObject.DeltaX <> 0 OrElse movingObject.DeltaY <> 0 Then
                        placedItems(x)(y) = Nothing
                        movingObject.MoveInterval = If(movingObject.IsBall, 100, 50)
                        movingObject.NextMoveTime = DateTime.Now.AddMilliseconds(movingObject.MoveInterval)
                        movingObjects.Add(movingObject)
                    End If
                End If
            Next
        Next

        If movingObjects.Count > 0 AndAlso movingObjectsTimer Is Nothing Then
            movingObjectsTimer = New Timer()
            AddHandler movingObjectsTimer.Tick, AddressOf OnMovingObjectsTimerTick
            movingObjectsTimer.Interval = 50 ' Ensure the interval is appropriate
            movingObjectsTimer.Start()
        End If
    End Sub

    Private Sub PlaySelectedMusic()
        If Not String.IsNullOrEmpty(SelectedMusic) Then
            Dim musicDetails As String() = SelectedMusic.Split(", ")
            Dim musicFileName As String = musicDetails(0)
            Dim volumeLevel As Single = Integer.Parse(musicDetails(1).Split(":")(1)) / 100.0F
            Dim gainLevel As Single = Integer.Parse(musicDetails(2).Split(":")(1)) / 10.0F

            Dim musicFilePath As String = Path.Combine(musicFolder, musicFileName)

            musicManager.PlaySelectedMusic(musicFilePath, volumeLevel, gainLevel)
        End If
    End Sub

#End Region

#Region " Baddies "
    Private Sub AddBaddiesOnGrid()
        For x As Integer = 0 To SQCOUNTX - 1
            For y As Integer = 0 To SQCOUNTY - 1
                If placedItems(x)(y) IsNot Nothing Then
                    Dim imageKey As String = placedItems(x)(y)
                    If imageKey.StartsWith("picBaddy") Then
                        Dim baddy As New Baddy(x, y, imageKey) ' Pass the imageKey here
                        baddies.Add(baddy) ' Add baddy to the list
                        placedItems(x)(y) = Nothing ' Clear the starting point
                    End If
                End If
            Next
        Next
    End Sub

    Private Sub StartBaddyMovementTimer()
        baddyMovementTimer = New Timer() With {.Interval = 250} ' Adjust speed as needed
        AddHandler baddyMovementTimer.Tick, AddressOf OnBaddyMovementTick
        baddyMovementTimer.Start()
    End Sub

    Private Sub OnBaddyMovementTick(sender As Object, e As EventArgs)
        ' Iterate over the baddies list in reverse order to safely remove baddies
        For i As Integer = baddies.Count - 1 To 0 Step -1
            Try
                Dim baddy As Baddy = baddies(i)

                ' Check if the baddy can move
                If Not MoveBaddy(baddy) Then
                    ' Baddy is trapped, remove it from the list
                    baddies.RemoveAt(i) ' Remove by index
                End If
            Catch ex As ArgumentOutOfRangeException
                Console.WriteLine($"Caught ArgumentOutOfRangeException! Index: {i}, Current count: {baddies.Count}. Message: {ex.Message}")
            End Try
        Next

        picTest.Invalidate() ' Refresh the display to show updated baddy positions
    End Sub
    Private Function MoveBaddy(baddy As Baddy) As Boolean
        Dim nextX As Integer = baddy.X
        Dim nextY As Integer = baddy.Y

        ' Attempt to move in the current direction
        Select Case baddy.CurrentDirection
            Case "Right"
                nextX += 1
                If Not CanBaddyMoveTo(baddy, nextX, nextY) Then
                    ' Try down if right is blocked
                    nextX = baddy.X
                    nextY += 1
                    If Not CanBaddyMoveTo(baddy, nextX, nextY) Then
                        ' Try up if down is blocked
                        nextY = baddy.Y - 1
                        If Not CanBaddyMoveTo(baddy, nextX, nextY) Then
                            ' Finally try left
                            nextX = baddy.X - 1
                            nextY = baddy.Y
                            baddy.CurrentDirection = "Left" ' Update direction
                        Else
                            baddy.CurrentDirection = "Up" ' Update direction
                        End If
                    Else
                        baddy.CurrentDirection = "Down" ' Update direction
                    End If
                End If

            Case "Down"
                nextY += 1
                If Not CanBaddyMoveTo(baddy, nextX, nextY) Then
                    ' Try left if down is blocked
                    nextY = baddy.Y
                    nextX -= 1
                    If Not CanBaddyMoveTo(baddy, nextX, nextY) Then
                        ' Try right if left is blocked
                        nextX = baddy.X + 1
                        If Not CanBaddyMoveTo(baddy, nextX, nextY) Then
                            ' Finally try up
                            nextY = baddy.Y - 1
                            nextX = baddy.X
                            baddy.CurrentDirection = "Up" ' Update direction
                        Else
                            baddy.CurrentDirection = "Right" ' Update direction
                        End If
                    Else
                        baddy.CurrentDirection = "Left" ' Update direction
                    End If
                End If

            Case "Left"
                nextX -= 1
                If Not CanBaddyMoveTo(baddy, nextX, nextY) Then
                    ' Try up if left is blocked
                    nextX = baddy.X
                    nextY -= 1
                    If Not CanBaddyMoveTo(baddy, nextX, nextY) Then
                        ' Try down if up is blocked
                        nextY = baddy.Y + 1
                        If Not CanBaddyMoveTo(baddy, nextX, nextY) Then
                            ' Finally try right
                            nextX = baddy.X + 1
                            nextY = baddy.Y
                            baddy.CurrentDirection = "Right" ' Update direction
                        Else
                            baddy.CurrentDirection = "Down" ' Update direction
                        End If
                    Else
                        baddy.CurrentDirection = "Up" ' Update direction
                    End If
                End If

            Case "Up"
                nextY -= 1
                If Not CanBaddyMoveTo(baddy, nextX, nextY) Then
                    ' Try right if up is blocked
                    nextY = baddy.Y
                    nextX += 1
                    If Not CanBaddyMoveTo(baddy, nextX, nextY) Then
                        ' Try left if right is blocked
                        nextX = baddy.X - 1
                        If Not CanBaddyMoveTo(baddy, nextX, nextY) Then
                            ' Finally try down
                            nextY = baddy.Y + 1
                            nextX = baddy.X
                            baddy.CurrentDirection = "Down" ' Update direction
                        Else
                            baddy.CurrentDirection = "Left" ' Update direction
                        End If
                    Else
                        baddy.CurrentDirection = "Right" ' Update direction
                    End If
                End If
        End Select

        ' Now perform the move if the next position is valid
        If CanBaddyMoveTo(baddy, nextX, nextY) Then
            baddy.X = nextX
            baddy.Y = nextY
            Return True ' Return true to indicate that the baddy is still active
        Else
            ' If baddy cannot move, it might be trapped
            If trapped(baddy) Then
                Return False ' This indicates the baddy should be removed
            End If
        End If

        Return True ' Return true to indicate that the baddy is still active
    End Function

    Private Function CanBaddyMoveTo(baddy As Baddy, newX As Integer, newY As Integer) As Boolean
        ' Check boundaries
        If newX < 0 OrElse newX >= SQCOUNTX OrElse newY < 0 OrElse newY >= SQCOUNTY Then
            Return False
        End If

        ' Check for walls in the way
        If newX > baddy.X Then
            ' Moving right
            If verticalWalls(newX)(newY) Then
                Return False
            End If
        ElseIf newX < baddy.X Then
            ' Moving left
            If verticalWalls(newX + 1)(newY) Then
                Return False
            End If
        End If

        If newY > baddy.Y Then
            ' Moving down
            If horizontalWalls(newX)(newY) Then
                Return False
            End If
        ElseIf newY < baddy.Y Then
            ' Moving up
            If horizontalWalls(newX)(newY + 1) Then
                Return False
            End If
        End If

        ' Check for wall items (lasers and flippers)
        If newX > baddy.X Then
            ' Moving right
            If verticalWallItems(newX)(newY) IsNot Nothing Then
                Return False
            End If
        ElseIf newX < baddy.X Then
            ' Moving left
            If verticalWallItems(newX + 1)(newY) IsNot Nothing Then
                Return False
            End If
        End If

        If newY > baddy.Y Then
            ' Moving down
            If horizontalWallItems(newX)(newY) IsNot Nothing Then
                Return False
            End If
        ElseIf newY < baddy.Y Then
            ' Moving up
            If horizontalWallItems(newX)(newY + 1) IsNot Nothing Then
                Return False
            End If
        End If

        ' Check for other baddies occupying the new space
        If baddies.Any(Function(b) b.X = newX AndAlso b.Y = newY) Then
            Return False
        End If

        ' Check if the new position is clear (no items or other obstacles)
        If placedItems(newX)(newY) IsNot Nothing Then
            Return False
        End If

        ' If all checks passed, return true
        Return True
    End Function

    Private Function trapped(baddy As Baddy) As Boolean
        ' Simple definition of trapped
        Dim nextX As Integer = baddy.X
        Dim nextY As Integer = baddy.Y
        Select Case baddy.CurrentDirection
            Case "Right"
                nextX += 1
            Case "Down"
                nextY += 1
            Case "Left"
                nextX -= 1
            Case "Up"
                nextY -= 1
        End Select

        If Not CanBaddyMoveTo(baddy, nextX, nextY) Then
            ' Baddy is trapped
            sfxManager.PlaySoundEffect("Explosion") ' Play explosion sound

            ' Remove the baddy from the list
            baddies.Remove(baddy)

            ' Place a key where the baddy was trapped
            placedItems(baddy.X)(baddy.Y) = "picKey"

            ' Start explosion animation
            Dim explosionImage As Image = imageDictionary("picExplosion")
            Dim startX As Integer = INDENT + baddy.X * (SQSizeX + WALL_THICKNESS) + WALL_THICKNESS \ 2
            Dim startY As Integer = INDENT + baddy.Y * (SQSizeY + WALL_THICKNESS) + WALL_THICKNESS \ 2
            Dim animationDuration As Integer = 1000 ' 1 second animation
            Dim explosionAnimation As New ItemAnimation(explosionImage, startX, startY, startX, startY, animationDuration)
            itemAnimations.Add(explosionAnimation)

            Return True
        End If

        Return False
    End Function
#End Region


#Region "Movement"
    Private Sub frmGame_KeyDown(sender As Object, e As KeyEventArgs) Handles Me.KeyDown
        Dim moved As Boolean = False
        Select Case e.KeyCode
            Case Keys.Up, Keys.P
                moved = AttemptMove("Up")
            Case Keys.Down, Keys.L
                moved = AttemptMove("Down")
            Case Keys.Left, Keys.Z
                moved = AttemptMove("Left")
            Case Keys.Right, Keys.X
                moved = AttemptMove("Right")
        End Select
        If moved Then
            lastMoveTime = DateTime.Now
            ' No need to invalidate here, the redraw timer will handle it
        End If

        ' Stop the idle timer when a key is pressed
        idleTimer.Stop()
    End Sub
    Private Sub frmGame_KeyUp(sender As Object, e As KeyEventArgs) Handles Me.KeyUp
        ' Start the idle timer immediately when a key is released
        idleTimer.Start()
    End Sub

    Private Function AttemptMove(direction As String) As Boolean
        Dim deltaX As Integer = 0
        Dim deltaY As Integer = 0
        Select Case direction
            Case "Up"
                deltaY = -1
            Case "Down"
                deltaY = 1
            Case "Left"
                deltaX = -1
                lastDirection = "Left"
            Case "Right"
                deltaX = 1
                lastDirection = "Right"
        End Select

        Dim newX As Integer = playerX + deltaX
        Dim newY As Integer = playerY + deltaY

        If newX < 0 OrElse newX >= SQCOUNTX OrElse newY < 0 OrElse newY >= SQCOUNTY Then
            Return False
        End If

        If Not CanMoveTo(newX, newY, deltaX, deltaY) Then
            Return False
        End If

        Dim targetItem As String = placedItems(newX)(newY)

        If String.IsNullOrEmpty(targetItem) Then
            ' Remove the starting point once the player moves
            If placedItems(playerX)(playerY) <> "picBlockStopper1" AndAlso placedItems(playerX)(playerY) <> "picWarp" AndAlso placedItems(playerX)(playerY) <> "picWarp2" Then
                placedItems(playerX)(playerY) = Nothing
            End If

            playerX = newX
            playerY = newY
            PlayRandomMoveSound() ' Play one of the move sounds randomly.
            CheckForWarp()
            Return True
        ElseIf targetItem = "picBlock1" Then
            Dim blockMoved As Boolean = AttemptPushBlock(newX, newY, deltaX, deltaY)
            If blockMoved Then
                ' Remove the starting point once the player moves
                If placedItems(playerX)(playerY) <> "picBlockStopper1" AndAlso placedItems(playerX)(playerY) <> "picWarp" AndAlso placedItems(playerX)(playerY) <> "picWarp2" Then
                    placedItems(playerX)(playerY) = Nothing
                End If

                playerX = newX
                playerY = newY
                PlayRandomMoveSound() ' Play one of the move sounds randomly.
                CheckForWarp()
                Return True
            Else
                Return False
            End If
        ElseIf targetItem = "picBlockStopper1" Then
            ' Do not remove the block stopper
            playerX = newX
            playerY = newY
            PlayRandomMoveSound() ' Play one of the move sounds randomly.
            CheckForWarp()
            Return True
        ElseIf targetItem = "picBall" Then
            Dim ballMoved As Boolean = AttemptPushBall(newX, newY, deltaX, deltaY)
            If ballMoved Then
                ' Remove the starting point once the player moves
                If placedItems(playerX)(playerY) <> "picBlockStopper1" AndAlso placedItems(playerX)(playerY) <> "picWarp" AndAlso placedItems(playerX)(playerY) <> "picWarp2" Then
                    placedItems(playerX)(playerY) = Nothing
                End If

                playerX = newX
                playerY = newY
                PlayRandomMoveSound() ' Play one of the move sounds randomly.
                CheckForWarp()
                Return True
            Else
                Return False
            End If
        ElseIf targetItem = "picCoin" Then
            CollectedCoins += 1
            placedItems(newX)(newY) = Nothing
            playerX = newX
            playerY = newY
            sfxManager.PlaySoundEffect("Coin")
            PlayRandomMoveSound() ' Play one of the move sounds randomly.
            UpdateCoinLabel()

            ' Start coin animation
            Dim coinImage As Image = imageDictionary("picCoin")
            Dim startX As Integer = INDENT + newX * (SQSizeX + WALL_THICKNESS) + WALL_THICKNESS \ 2
            Dim startY As Integer = INDENT + newY * (SQSizeY + WALL_THICKNESS) + WALL_THICKNESS \ 2
            Dim endX As Integer = lblCoinCount.Bounds.Left + lblCoinCount.Bounds.Width \ 2 - coinImage.Width \ 2
            Dim endY As Integer = lblCoinCount.Bounds.Top + lblCoinCount.Bounds.Height \ 2 - coinImage.Height \ 2
            Dim animationDuration As Integer = 1000 ' 1 second animation
            Dim coinAnimation As New ItemAnimation(coinImage, startX, startY, endX, endY, animationDuration)
            itemAnimations.Add(coinAnimation)

            ' Remove the starting point once the player moves
            If placedItems(playerX)(playerY) <> "picBlockStopper1" AndAlso placedItems(playerX)(playerY) <> "picWarp" AndAlso placedItems(playerX)(playerY) <> "picWarp2" Then
                placedItems(playerX)(playerY) = Nothing
            End If

            CheckForWarp()
            Return True
        ElseIf targetItem = "picKey" Then
            collectedKeys += 1
            placedItems(newX)(newY) = Nothing
            playerX = newX
            playerY = newY
            sfxManager.PlaySoundEffect("Key")
            PlayRandomMoveSound() ' Play one of the move sounds randomly.
            UpdateKeyLabel()

            ' Start key animation
            Dim keyImage As Image = imageDictionary("picKey")
            Dim startX As Integer = INDENT + newX * (SQSizeX + WALL_THICKNESS) + WALL_THICKNESS \ 2
            Dim startY As Integer = INDENT + newY * (SQSizeY + WALL_THICKNESS) + WALL_THICKNESS \ 2
            Dim endX As Integer = lblKeyCount.Bounds.Left + lblKeyCount.Bounds.Width \ 2 - keyImage.Width \ 2
            Dim endY As Integer = lblKeyCount.Bounds.Top + lblKeyCount.Bounds.Height \ 2 - keyImage.Height \ 2
            Dim animationDuration As Integer = 1000 ' 1 second animation
            Dim keyAnimation As New ItemAnimation(keyImage, startX, startY, endX, endY, animationDuration)
            itemAnimations.Add(keyAnimation)

            ' Remove the starting point once the player moves
            If placedItems(playerX)(playerY) <> "picBlockStopper1" AndAlso placedItems(playerX)(playerY) <> "picWarp" AndAlso placedItems(playerX)(playerY) <> "picWarp2" Then
                placedItems(playerX)(playerY) = Nothing
            End If

            CheckForWarp()
            Return True
        ElseIf targetItem = "picGate" Then
            If collectedKeys = totalKeys Then
                UnlockDoor(newX, newY)
                PlayRandomMoveSound() ' Play one of the move sounds randomly.
                Return False
            Else
                Return False
            End If
        ElseIf targetItem = "picFinish" Then
            playerX = newX
            playerY = newY
            PlayRandomMoveSound() ' Play one of the move sounds randomly.
            GameWon()
            Return True
        ElseIf targetItem = "picWarp" Then
            playerX = newX
            playerY = newY
            PlayRandomMoveSound() ' Play one of the move sounds randomly.
            HandleWarp("picWarp")
            Return True
        ElseIf targetItem = "picWarp2" Then
            playerX = newX
            playerY = newY
            PlayRandomMoveSound() ' Play one of the move sounds randomly.
            HandleWarp("picWarp2")
            Return True
        Else
            Return False
        End If

        ' Remove the starting point once the player moves, if applicable
        If placedItems(playerX)(playerY) <> "picBlockStopper1" AndAlso placedItems(playerX)(playerY) <> "picWarp" AndAlso placedItems(playerX)(playerY) <> "picWarp2" Then
            placedItems(playerX)(playerY) = Nothing
        End If
    End Function

    Private Sub PlayRandomMoveSound()
        Dim moveSounds As String() = {"Move 1", "Move 2", "Move 3"}
        Dim randomIndex As Integer = New Random().Next(moveSounds.Length)
        Dim selectedSound As String = moveSounds(randomIndex)

        sfxManager.PlaySoundEffect(selectedSound)
    End Sub

    Private Sub UnlockDoor(doorX As Integer, doorY As Integer)
        ' Store the door position
        Me.doorX = doorX
        Me.doorY = doorY

        ' Start the door animation timer
        If doorAnimationTimer Is Nothing Then
            doorAnimationTimer = New Timer()
            AddHandler doorAnimationTimer.Tick, AddressOf OnDoorAnimationTick
            doorAnimationTimer.Interval = 50 ' Adjust the interval as needed
        End If
        doorAnimationTimer.Start()

        ' Record the start time of the door animation
        doorAnimationStartTime = DateTime.Now

        ' Play the door open sound effect
        sfxManager.PlaySoundEffect("Door Open")
    End Sub

    Private Sub OnDoorAnimationTick(sender As Object, e As EventArgs)
        ' Update the door animation frame
        Dim doorImage As Image = imageDictionary("picGate")
        ImageAnimator.UpdateFrames(doorImage)

        ' Check if one second has passed since the animation started
        If (DateTime.Now - doorAnimationStartTime).TotalSeconds >= 1 Then
            ' Stop the timer
            doorAnimationTimer.Stop()

            ' Remove the door from the grid
            placedItems(doorX)(doorY) = Nothing
            ' No need to invalidate here, the redraw timer will handle it
        End If
    End Sub

    Private Sub CheckForWarp()
        Dim currentItem As String = placedItems(playerX)(playerY)
        If currentItem = "picWarp" AndAlso Not justWarped Then
            HandleWarp("picWarp")
        ElseIf currentItem = "picWarp2" AndAlso Not justWarped Then
            HandleWarp("picWarp2")
        ElseIf currentItem <> "picWarp" AndAlso currentItem <> "picWarp2" Then
            justWarped = False
        End If
    End Sub

    Private Sub HandleWarp(warpType As String)
        If Not justWarped Then
            Dim warpPositions As New List(Of Point)
            For x As Integer = 0 To placedItems.Length - 1
                If placedItems(x) IsNot Nothing Then
                    For y As Integer = 0 To placedItems(x).Length - 1
                        If placedItems(x)(y) = warpType Then
                            warpPositions.Add(New Point(x, y))
                        End If
                    Next
                End If
            Next
            warpPositions.Remove(New Point(playerX, playerY))
            If warpPositions.Count = 1 Then
                justWarped = True
                sfxManager.PlaySoundEffect("Warp")
                playerX = warpPositions(0).X
                playerY = warpPositions(0).Y
                CheckForWarp()
            End If
        End If
    End Sub

    Private Function AttemptPushBall(ballX As Integer, ballY As Integer, deltaX As Integer, deltaY As Integer) As Boolean
        Dim nextX As Integer = ballX + deltaX
        Dim nextY As Integer = ballY + deltaY

        If nextX < 0 OrElse nextX >= SQCOUNTX OrElse nextY < 0 OrElse nextY >= SQCOUNTY Then
            Return False
        End If

        If Not CanBallMoveTo(ballX, ballY, deltaX, deltaY) Then
            Return False
        End If

        Dim targetItem As String = placedItems(nextX)(nextY)
        Dim playerAtNextPos As Boolean = (nextX = playerX AndAlso nextY = playerY)

        If String.IsNullOrEmpty(targetItem) AndAlso Not playerAtNextPos Then
            placedItems(ballX)(ballY) = Nothing

            Dim newBall As New MovingObject With {
            .X = ballX,
            .Y = ballY,
            .DeltaX = deltaX,
            .DeltaY = deltaY,
            .IsBall = True,
            .IsBlock = False,
            .MoveInterval = 100,
            .NextMoveTime = DateTime.Now.AddMilliseconds(100)
        }

            movingObjects.Add(newBall)

            If movingObjectsTimer Is Nothing Then
                movingObjectsTimer = New Timer()
                AddHandler movingObjectsTimer.Tick, AddressOf OnMovingObjectsTimerTick
                movingObjectsTimer.Interval = 50
                movingObjectsTimer.Start()
            End If

            sfxManager.PlaySoundEffect("Push Ball")

            Return True
        Else
            Return False
        End If
    End Function

    Private Sub OnMovingObjectsTimerTick(sender As Object, e As EventArgs)
        Dim currentTime As DateTime = DateTime.Now

        For i As Integer = movingObjects.Count - 1 To 0 Step -1
            Dim movingObject = movingObjects(i)

            If movingObject.NextMoveTime > currentTime Then
                Continue For
            End If

            Dim deltaX As Integer = movingObject.DeltaX
            Dim deltaY As Integer = movingObject.DeltaY

            Dim currentX As Integer = movingObject.X
            Dim currentY As Integer = movingObject.Y
            Dim objectStopped As Boolean = False

            Dim nextX As Integer = currentX + deltaX
            Dim nextY As Integer = currentY + deltaY

            If nextX < 0 OrElse nextX >= SQCOUNTX OrElse nextY < 0 OrElse nextY >= SQCOUNTY Then
                objectStopped = True
            Else
                If Not CanObjectMoveTo(movingObject, currentX, currentY, deltaX, deltaY) Then
                    objectStopped = True
                Else
                    Dim targetItem As String = placedItems(nextX)(nextY)
                    Dim playerAtNextPos As Boolean = (nextX = playerX AndAlso nextY = playerY)
                    Dim objectAtNextPos As Boolean = movingObjects.Any(Function(o) o.X = nextX AndAlso o.Y = nextY AndAlso o IsNot movingObject)

                    If String.IsNullOrEmpty(targetItem) AndAlso Not playerAtNextPos AndAlso Not objectAtNextPos Then
                        movingObject.X = nextX
                        movingObject.Y = nextY
                        movingObject.NextMoveTime = currentTime.AddMilliseconds(movingObject.MoveInterval)

                        CheckForFlipper(movingObject)
                    Else
                        objectStopped = True
                    End If
                End If
            End If

            If objectStopped Then
                If IsObjectOnFlipper(movingObject) Then
                    movingObject.NextMoveTime = currentTime.AddMilliseconds(movingObject.MoveInterval)
                    CheckForFlipper(movingObject)
                Else
                    If movingObject.IsBall Then
                        placedItems(movingObject.X)(movingObject.Y) = "picBall"
                    ElseIf movingObject.IsBlock Then
                        placedItems(movingObject.X)(movingObject.Y) = "picBlock1"
                    End If
                    sfxManager.PlaySoundEffect("Block Stop")
                    movingObjects.RemoveAt(i)
                End If
            End If
        Next

        ' No need to invalidate here, the redraw timer will handle it
    End Sub

    Private Function IsObjectOnFlipper(movingObject As MovingObject) As Boolean
        Dim x As Integer = movingObject.X
        Dim y As Integer = movingObject.Y

        If x < verticalWallItems.Length - 1 AndAlso verticalWallItems(x + 1)(y) IsNot Nothing Then
            Dim item As String = verticalWallItems(x + 1)(y)
            If item = "picFlipper1" Then
                Return True
            End If
        End If

        If x > 0 AndAlso verticalWallItems(x)(y) IsNot Nothing Then
            Dim item As String = verticalWallItems(x)(y)
            If item = "picFlipper2" Then
                Return True
            End If
        End If

        If y < horizontalWallItems(x).Length - 1 AndAlso horizontalWallItems(x)(y + 1) IsNot Nothing Then
            Dim item As String = horizontalWallItems(x)(y + 1)
            If item = "picFlipper3" Then
                Return True
            End If
        End If

        If y > 0 AndAlso horizontalWallItems(x)(y) IsNot Nothing Then
            Dim item As String = horizontalWallItems(x)(y)
            If item = "picFlipper4" Then
                Return True
            End If
        End If

        Return False
    End Function

    Private Sub CheckForFlipper(movingObject As MovingObject)
        Dim x As Integer = movingObject.X
        Dim y As Integer = movingObject.Y

        If x < verticalWallItems.Length - 1 AndAlso verticalWallItems(x + 1)(y) IsNot Nothing Then
            Dim item As String = verticalWallItems(x + 1)(y)
            If item = "picFlipper1" Then
                movingObject.DeltaX = -1
                movingObject.DeltaY = 0
                movingObject.MoveInterval = If(movingObject.IsBall, 100, 12) ' Speed up block movement
                movingObject.NextMoveTime = DateTime.Now.AddMilliseconds(movingObject.MoveInterval)
                sfxManager.PlaySoundEffect("Flipper")
            End If
        End If

        If x > 0 AndAlso verticalWallItems(x)(y) IsNot Nothing Then
            Dim item As String = verticalWallItems(x)(y)
            If item = "picFlipper2" Then
                movingObject.DeltaX = 1
                movingObject.DeltaY = 0
                movingObject.MoveInterval = If(movingObject.IsBall, 100, 12) ' Speed up block movement
                movingObject.NextMoveTime = DateTime.Now.AddMilliseconds(movingObject.MoveInterval)
                sfxManager.PlaySoundEffect("Flipper")
            End If
        End If

        If y < horizontalWallItems(x).Length - 1 AndAlso horizontalWallItems(x)(y + 1) IsNot Nothing Then
            Dim item As String = horizontalWallItems(x)(y + 1)
            If item = "picFlipper3" Then
                movingObject.DeltaX = 0
                movingObject.DeltaY = -1
                movingObject.MoveInterval = If(movingObject.IsBall, 100, 12) ' Speed up block movement
                movingObject.NextMoveTime = DateTime.Now.AddMilliseconds(movingObject.MoveInterval)
                sfxManager.PlaySoundEffect("Flipper")
            End If
        End If

        If y > 0 AndAlso horizontalWallItems(x)(y) IsNot Nothing Then
            Dim item As String = horizontalWallItems(x)(y)
            If item = "picFlipper4" Then
                movingObject.DeltaX = 0
                movingObject.DeltaY = 1
                movingObject.MoveInterval = If(movingObject.IsBall, 100, 12) ' Speed up block movement
                movingObject.NextMoveTime = DateTime.Now.AddMilliseconds(movingObject.MoveInterval)
                sfxManager.PlaySoundEffect("Flipper")
            End If
        End If
    End Sub

    Private Function CanObjectMoveTo(movingObject As MovingObject, currentX As Integer, currentY As Integer, deltaX As Integer, deltaY As Integer) As Boolean
        Dim wallExists As Boolean = False
        Dim laserExists As Boolean = False
        Dim laserX As Integer = -1
        Dim laserY As Integer = -1
        Dim laserType As String = ""

        If deltaX = 1 Then
            wallExists = verticalWalls(currentX + 1)(currentY)
            If verticalWallItems(currentX + 1)(currentY) IsNot Nothing Then
                laserExists = True
                laserX = currentX + 1
                laserY = currentY
                laserType = verticalWallItems(laserX)(laserY)
            End If
        ElseIf deltaX = -1 Then
            wallExists = verticalWalls(currentX)(currentY)
            If verticalWallItems(currentX)(currentY) IsNot Nothing Then
                laserExists = True
                laserX = currentX
                laserY = currentY
                laserType = verticalWallItems(laserX)(laserY)
            End If
        ElseIf deltaY = 1 Then
            wallExists = horizontalWalls(currentX)(currentY + 1)
            If horizontalWallItems(currentX)(currentY + 1) IsNot Nothing Then
                laserExists = True
                laserX = currentX
                laserY = currentY + 1
                laserType = horizontalWallItems(laserX)(laserY)
            End If
        ElseIf deltaY = -1 Then
            wallExists = horizontalWalls(currentX)(currentY)
            If horizontalWallItems(currentX)(currentY) IsNot Nothing Then
                laserExists = True
                laserX = currentX
                laserY = currentY
                laserType = horizontalWallItems(laserX)(laserY)
            End If
        End If

        If wallExists Then
            Return False
        End If

        If laserExists Then
            Dim laserCanBeDestroyed As Boolean = False

            If (deltaX <> 0 AndAlso laserType = "picLazer1") Then
                laserCanBeDestroyed = True
            ElseIf (deltaY <> 0 AndAlso laserType = "picLazer2") Then
                laserCanBeDestroyed = True
            End If

            If laserCanBeDestroyed Then
                If deltaX <> 0 Then
                    verticalWallItems(laserX)(laserY) = Nothing
                ElseIf deltaY <> 0 Then
                    horizontalWallItems(laserX)(laserY) = Nothing
                End If
                sfxManager.PlaySoundEffect("Break Lazer")
            Else
                Return False
            End If
        End If

        ' Check for other blocks
        Dim nextX As Integer = currentX + deltaX
        Dim nextY As Integer = currentY + deltaY
        If placedItems(nextX)(nextY) = "picBlock1" Then
            Return False
        End If

        ' Check for baddies
        If baddies.Any(Function(b) b.X = nextX AndAlso b.Y = nextY) Then
            Return False
        End If

        ' Check for the player
        If nextX = playerX AndAlso nextY = playerY Then
            Return False
        End If

        Return True
    End Function

    Private Function CanBallMoveTo(currentX As Integer, currentY As Integer, deltaX As Integer, deltaY As Integer) As Boolean
        Return CanObjectMoveTo(New MovingObject With {.IsBall = True}, currentX, currentY, deltaX, deltaY)
    End Function

    Private Function IsLaserOnVerticalWall(x As Integer, y As Integer) As Boolean
        If verticalWallItems(x)(y) IsNot Nothing Then
            Dim item As String = verticalWallItems(x)(y)
            Return item = "picLazer1" OrElse item = "picLazer2"
        End If
        Return False
    End Function

    Private Function IsLaserOnHorizontalWall(x As Integer, y As Integer) As Boolean
        If horizontalWallItems(x)(y) IsNot Nothing Then
            Dim item As String = horizontalWallItems(x)(y)
            Return item = "picLazer1" OrElse item = "picLazer2"
        End If
        Return False
    End Function

    Private Function AttemptPushBlock(blockX As Integer, blockY As Integer, deltaX As Integer, deltaY As Integer) As Boolean
        Dim blockNewX As Integer = blockX + deltaX
        Dim blockNewY As Integer = blockY + deltaY

        If blockNewX < 0 OrElse blockNewX >= SQCOUNTX OrElse blockNewY < 0 OrElse blockNewY >= SQCOUNTY Then
            Return False
        End If

        If Not CanBlockMoveTo(blockX, blockY, deltaX, deltaY) Then
            Return False
        End If

        Dim blockTargetItem As String = placedItems(blockNewX)(blockNewY)
        Dim playerAtNextPos As Boolean = (blockNewX = playerX AndAlso blockNewY = playerY)

        ' Check for baddies at the new position
        If baddies.Any(Function(b) b.X = blockNewX AndAlso b.Y = blockNewY) Then
            Return False
        End If

        If String.IsNullOrEmpty(blockTargetItem) AndAlso Not playerAtNextPos Then
            placedItems(blockX)(blockY) = Nothing
            placedItems(blockNewX)(blockNewY) = "picBlock1"

            sfxManager.PlaySoundEffect("Push Block")

            Dim newBlock As New MovingObject With {
        .X = blockNewX,
        .Y = blockNewY,
        .IsBlock = True,
        .IsBall = False,
        .DeltaX = 0,
        .DeltaY = 0
    }

            CheckForFlipper(newBlock)
            If newBlock.DeltaX <> 0 OrElse newBlock.DeltaY <> 0 Then
                placedItems(blockNewX)(blockNewY) = Nothing
                newBlock.MoveInterval = 50
                newBlock.NextMoveTime = DateTime.Now.AddMilliseconds(50)
                movingObjects.Add(newBlock)

                If movingObjectsTimer Is Nothing Then
                    movingObjectsTimer = New Timer()
                    AddHandler movingObjectsTimer.Tick, AddressOf OnMovingObjectsTimerTick
                    movingObjectsTimer.Interval = 50
                    movingObjectsTimer.Start()
                End If
            End If

            Return True
        Else
            Return False
        End If
    End Function

    Private Function CanBlockMoveTo(blockX As Integer, blockY As Integer, deltaX As Integer, deltaY As Integer) As Boolean
        Return CanObjectMoveTo(New MovingObject With {.IsBlock = True}, blockX, blockY, deltaX, deltaY)
    End Function

    Private Function IsFlipperOnVerticalWall(x As Integer, y As Integer) As Boolean
        If verticalWallItems(x)(y) IsNot Nothing Then
            Dim item As String = verticalWallItems(x)(y)
            Return item = "picFlipper1" OrElse item = "picFlipper2"
        End If
        Return False
    End Function

    Private Function IsFlipperOnHorizontalWall(x As Integer, y As Integer) As Boolean
        If horizontalWallItems(x)(y) IsNot Nothing Then
            Dim item As String = horizontalWallItems(x)(y)
            Return item = "picFlipper3" OrElse item = "picFlipper4"
        End If
        Return False
    End Function
    Private Function CanMoveTo(newX As Integer, newY As Integer, deltaX As Integer, deltaY As Integer) As Boolean
        ' Check for walls and lasers based on the direction of movement
        If deltaX = 1 Then
            If verticalWalls(playerX + 1)(playerY) Then Return False
            If IsLaserOnVerticalWall(playerX + 1, playerY) Then Return False
            If IsFlipperOnVerticalWall(playerX + 1, playerY) Then Return False
        ElseIf deltaX = -1 Then
            If verticalWalls(playerX)(playerY) Then Return False
            If IsLaserOnVerticalWall(playerX, playerY) Then Return False
            If IsFlipperOnVerticalWall(playerX, playerY) Then Return False
        ElseIf deltaY = 1 Then
            If horizontalWalls(playerX)(playerY + 1) Then Return False
            If IsLaserOnHorizontalWall(playerX, playerY + 1) Then Return False
            If IsFlipperOnHorizontalWall(playerX, playerY + 1) Then Return False
        ElseIf deltaY = -1 Then
            If horizontalWalls(playerX)(playerY) Then Return False
            If IsLaserOnHorizontalWall(playerX, playerY) Then Return False
            If IsFlipperOnHorizontalWall(playerX, playerY) Then Return False
        End If

        ' Check for moving objects at the new position
        If movingObjects.Any(Function(b) b.X = newX AndAlso b.Y = newY) Then
            Return False
        End If

        ' Check for blocks
        If placedItems(newX)(newY) = "picBlock1" Then
            Return False
        End If

        Return True
    End Function

    Private Sub GameWon()
        sfxManager.PlaySoundEffect("Finish")
        MessageBox.Show($"Congratulations! You have completed the level.{Environment.NewLine}Coins Collected: {CollectedCoins}")
        Me.Close()
    End Sub

    Private Sub UpdateCoinLabel()
        lblCoinCount.Text = $"{CollectedCoins} of {totalCoins}"
    End Sub

    Private Sub UpdateKeyLabel()
        If totalKeys > 0 Then
            lblKeyCount.Text = $"{collectedKeys} of {totalKeys}"
        Else
            lblKeyCount.Text = "X"
        End If
    End Sub

#End Region

#Region "Drawing"
    Private Sub OnAnimationTick(sender As Object, e As EventArgs)
        For Each img In animatedImages
            ImageAnimator.UpdateFrames(img)
        Next
    End Sub

    Private Sub OnFrameChanged(o As Object, e As EventArgs)
        ' Required but can be left empty
    End Sub

    Private Sub picTest_Paint(sender As Object, e As PaintEventArgs) Handles picTest.Paint
        If Not isRoomDataLoaded Then
            Return
        End If

        ' Draw the gradient background if useGradient is true
        If useGradient Then
            DrawGradientBackground(e.Graphics)
        End If

        CalculateSquareSizes(picTest.ClientSize.Width, picTest.ClientSize.Height)

        e.Graphics.SmoothingMode = SmoothingMode.None

        DrawGrid(e.Graphics)

        ' Draw item animations
        For Each itemAnimation In itemAnimations
            Dim destRect As New Rectangle(itemAnimation.CurrentX, itemAnimation.CurrentY, itemAnimation.ItemImage.Width, itemAnimation.ItemImage.Height)
            e.Graphics.DrawImage(itemAnimation.ItemImage, destRect)
        Next

        '' Draw baddies
        'For Each baddy In baddies
        '    Dim img As Image = imageDictionary("picBaddy1")
        '    Dim xPos As Integer = INDENT + baddy.X * (SQSizeX + WALL_THICKNESS) + WALL_THICKNESS \ 2
        '    Dim yPos As Integer = INDENT + baddy.Y * (SQSizeY + WALL_THICKNESS) + WALL_THICKNESS \ 2
        '    Dim destRect As New Rectangle(xPos, yPos, SQSizeX, SQSizeY)
        '    e.Graphics.DrawImage(img, destRect)
        'Next
    End Sub

    Private Sub InvalidateMovingObjects()
        For Each movingObject In movingObjects
            Dim rect As New Rectangle(
        INDENT + movingObject.X * (SQSizeX + WALL_THICKNESS),
        INDENT + movingObject.Y * (SQSizeY + WALL_THICKNESS),
        SQSizeX + WALL_THICKNESS,
        SQSizeY + WALL_THICKNESS
    )
            picTest.Invalidate(rect)
        Next
    End Sub

    Private Sub DrawHatchStyleBackground(g As Graphics)
        Dim xOrigin As Integer = INDENT
        Dim yOrigin As Integer = INDENT
        Dim gridWidth As Integer = SQCOUNTX * (SQSizeX + WALL_THICKNESS)
        Dim gridHeight As Integer = SQCOUNTY * (SQSizeY + WALL_THICKNESS)

        ' Calculate the hatch style rectangle for the entire grid
        Dim hatchRect As New Rectangle(xOrigin, yOrigin, gridWidth, gridHeight)

        ' Draw the hatch style background
        Using brush As New HatchBrush(floorsHatchStyle, floorsColor1, floorsColor2)
            g.FillRectangle(brush, hatchRect)
        End Using
    End Sub

    Private Sub DrawGradientBackground(g As Graphics)
        Dim xOrigin As Integer = INDENT
        Dim yOrigin As Integer = INDENT
        Dim gridWidth As Integer = SQCOUNTX * (SQSizeX + WALL_THICKNESS)
        Dim gridHeight As Integer = SQCOUNTY * (SQSizeY + WALL_THICKNESS)

        ' Calculate the gradient rectangle for the entire grid
        Dim gradientRect As New Rectangle(xOrigin, yOrigin, gridWidth, gridHeight)

        ' Draw the gradient background
        Using brush As New LinearGradientBrush(gradientRect, floorsColor1, floorsColor2, LinearGradientMode.Vertical)
            g.FillRectangle(brush, gradientRect)
        End Using
    End Sub

    Private Sub CalculateSquareSizes(clientWidth As Integer, clientHeight As Integer)
        SQSizeX = (clientWidth - 2 * INDENT - (SQCOUNTX + 1) * WALL_THICKNESS) \ SQCOUNTX
        SQSizeY = (clientHeight - 2 * INDENT - (SQCOUNTY + 1) * WALL_THICKNESS) \ SQCOUNTY
    End Sub

    Private Sub DrawGrid(g As Graphics)
        Dim xOrigin As Integer = INDENT
        Dim yOrigin As Integer = INDENT

        ' Draw the gradient background if useGradient is true
        If useGradient Then
            DrawGradientBackground(g)
        End If

        ' Draw floor squares with the chosen style only if not using gradient
        If Not useGradient Then
            For x As Integer = 0 To SQCOUNTX - 1
                For y As Integer = 0 To SQCOUNTY - 1
                    Dim floorRect As New Rectangle(
            xOrigin + x * (SQSizeX + WALL_THICKNESS) + WALL_THICKNESS \ 2,
            yOrigin + y * (SQSizeY + WALL_THICKNESS) + WALL_THICKNESS \ 2,
            SQSizeX,
            SQSizeY
        )

                    If floorsUseEdgeStyle IsNot Nothing AndAlso floorsUseEdgeStyle.Length > x AndAlso
           floorsUseEdgeStyle(x) IsNot Nothing AndAlso floorsUseEdgeStyle(x).Length > y AndAlso
           floorsUseEdgeStyle(x)(y) Then
                        Using floorBrush As New HatchBrush(wallsHatchStyle, wallsColor1, wallsColor2)
                            g.FillRectangle(floorBrush, floorRect)
                        End Using
                    Else
                        Using floorBrush As New HatchBrush(floorsHatchStyle, floorsColor1, floorsColor2)
                            g.FillRectangle(floorBrush, floorRect)
                        End Using
                    End If
                Next
            Next
        End If

        ' Draw wall intersections
        For x As Integer = 0 To SQCOUNTX
            For y As Integer = 0 To SQCOUNTY
                Dim intersectionRect As New Rectangle(
        xOrigin + x * (SQSizeX + WALL_THICKNESS) - WALL_THICKNESS \ 2,
        yOrigin + y * (SQSizeY + WALL_THICKNESS) - WALL_THICKNESS \ 2,
        WALL_THICKNESS,
        WALL_THICKNESS
    )
                Using wallBrush As New HatchBrush(wallsHatchStyle, wallsColor1, wallsColor2)
                    g.FillRectangle(wallBrush, intersectionRect)
                End Using
            Next
        Next

        ' Draw vertical walls or floor
        For x As Integer = 0 To SQCOUNTX
            For y As Integer = 0 To SQCOUNTY - 1
                Dim wallRect As New Rectangle(
        xOrigin + x * (SQSizeX + WALL_THICKNESS) - WALL_THICKNESS \ 2,
        yOrigin + y * (SQSizeY + WALL_THICKNESS) + WALL_THICKNESS \ 2,
        WALL_THICKNESS,
        SQSizeY
    )

                If x >= 0 AndAlso x < verticalWalls.Length AndAlso
       verticalWalls(x) IsNot Nothing AndAlso
       y >= 0 AndAlso y < verticalWalls(x).Length Then

                    If verticalWalls(x)(y) Then
                        ' Draw wall
                        Using wallBrush As New HatchBrush(wallsHatchStyle, wallsColor1, wallsColor2)
                            g.FillRectangle(wallBrush, wallRect)
                        End Using
                    ElseIf Not useGradient Then
                        Using floorBrush As New HatchBrush(floorsHatchStyle, floorsColor1, floorsColor2)
                            g.FillRectangle(floorBrush, wallRect)
                        End Using
                    End If
                End If
            Next
        Next

        ' Draw horizontal walls or floor
        For x As Integer = 0 To SQCOUNTX - 1
            For y As Integer = 0 To SQCOUNTY
                Dim wallRect As New Rectangle(
        xOrigin + x * (SQSizeX + WALL_THICKNESS) + WALL_THICKNESS \ 2,
        yOrigin + y * (SQSizeY + WALL_THICKNESS) - WALL_THICKNESS \ 2,
        SQSizeX,
        WALL_THICKNESS
    )

                If x >= 0 AndAlso x < horizontalWalls.Length AndAlso
       horizontalWalls(x) IsNot Nothing AndAlso
       y >= 0 AndAlso y < horizontalWalls(x).Length Then

                    If horizontalWalls(x)(y) Then
                        ' Draw wall
                        Using wallBrush As New HatchBrush(wallsHatchStyle, wallsColor1, wallsColor2)
                            g.FillRectangle(wallBrush, wallRect)
                        End Using
                    ElseIf Not useGradient Then
                        Using floorBrush As New HatchBrush(floorsHatchStyle, floorsColor1, floorsColor2)
                            g.FillRectangle(floorBrush, wallRect)
                        End Using
                    End If
                End If
            Next
        Next

        ' Draw edge squares with the wall hatch style and colors
        For x As Integer = 0 To SQCOUNTX - 1
            For y As Integer = 0 To SQCOUNTY - 1
                If floorsUseEdgeStyle IsNot Nothing AndAlso floorsUseEdgeStyle.Length > x AndAlso
       floorsUseEdgeStyle(x) IsNot Nothing AndAlso floorsUseEdgeStyle(x).Length > y AndAlso
       floorsUseEdgeStyle(x)(y) Then
                    Dim edgeRect As New Rectangle(
            xOrigin + x * (SQSizeX + WALL_THICKNESS) + WALL_THICKNESS \ 2,
            yOrigin + y * (SQSizeY + WALL_THICKNESS) + WALL_THICKNESS \ 2,
            SQSizeX,
            SQSizeY
        )
                    Using edgeBrush As New HatchBrush(wallsHatchStyle, wallsColor1, wallsColor2)
                        g.FillRectangle(edgeBrush, edgeRect)
                    End Using
                End If
            Next
        Next

        ' Draw items
        DrawItems(g)
        DrawWallItems(g)
    End Sub

    Private Sub DrawItems(g As Graphics)
        If placedItems Is Nothing Then Return

        For x As Integer = 0 To placedItems.Length - 1
            If placedItems(x) IsNot Nothing Then
                For y As Integer = 0 To placedItems(x).Length - 1
                    Dim imageKey As String = placedItems(x)(y)
                    If Not String.IsNullOrEmpty(imageKey) AndAlso imageDictionary.ContainsKey(imageKey) Then
                        If imageKey = "picStart" Then
                            Continue For
                        End If
                        Dim img As Image = Nothing
                        If imageKey = "picGate" Then
                            If doorAnimationTimer IsNot Nothing AndAlso doorAnimationTimer.Enabled Then
                                img = imageDictionary(imageKey) ' Use the animated door image
                            Else
                                img = doorImage ' Use the static door image
                            End If
                        Else
                            img = imageDictionary(imageKey)
                        End If
                        Dim xPos As Integer = INDENT + x * (SQSizeX + WALL_THICKNESS) + WALL_THICKNESS \ 2
                        Dim yPos As Integer = INDENT + y * (SQSizeY + WALL_THICKNESS) + WALL_THICKNESS \ 2
                        Dim destRect As New Rectangle(xPos, yPos, SQSizeX, SQSizeY)

                        g.DrawImage(img, destRect)

                        ' Draw the number of remaining keys on the door
                        If imageKey = "picGate" Then
                            Dim remainingKeys As Integer = totalKeys - collectedKeys
                            Dim font As New Font("Arial", 12, FontStyle.Bold)
                            Dim textSize As SizeF = g.MeasureString(remainingKeys.ToString(), font)
                            Dim textX As Integer = xPos + (SQSizeX - textSize.Width) \ 2
                            Dim textY As Integer = yPos + (SQSizeY - textSize.Height) \ 2
                            g.DrawString(remainingKeys.ToString(), font, Brushes.White, textX, textY)
                        End If
                    End If
                Next
            End If
        Next

        For Each movingObject In movingObjects
            Dim img As Image = Nothing
            If movingObject.IsBall Then
                img = imageDictionary("picBall")
            ElseIf movingObject.IsBlock Then
                img = imageDictionary("picBlock1")
            End If

            If img IsNot Nothing Then
                Dim xPos As Integer = INDENT + movingObject.X * (SQSizeX + WALL_THICKNESS) + WALL_THICKNESS \ 2
                Dim yPos As Integer = INDENT + movingObject.Y * (SQSizeY + WALL_THICKNESS) + WALL_THICKNESS \ 2
                Dim destRect As New Rectangle(xPos, yPos, SQSizeX, SQSizeY)

                g.DrawImage(img, destRect)
            End If
        Next

        ' Draw baddies
        For Each baddy In baddies
            Dim img As Image = imageDictionary(baddy.ImageKey)
            Dim xPos As Integer = INDENT + baddy.X * (SQSizeX + WALL_THICKNESS) + WALL_THICKNESS \ 2
            Dim yPos As Integer = INDENT + baddy.Y * (SQSizeY + WALL_THICKNESS) + WALL_THICKNESS \ 2
            Dim destRect As New Rectangle(xPos, yPos, SQSizeX, SQSizeY)
            g.DrawImage(img, destRect)
        Next

        DrawPlayer(g)
    End Sub

    Private Sub DrawPlayer(g As Graphics)
        Dim img As Image
        Select Case lastDirection
            Case "Left"
                img = imageDictionary("picStartLeft")
            Case "Right"
                img = imageDictionary("picStartRight")
            Case Else
                img = imageDictionary("picStart")
        End Select

        Dim xPos As Integer = INDENT + playerX * (SQSizeX + WALL_THICKNESS) + WALL_THICKNESS \ 2
        Dim yPos As Integer = INDENT + playerY * (SQSizeY + WALL_THICKNESS) + WALL_THICKNESS \ 2
        Dim destRect As New Rectangle(xPos, yPos, SQSizeX, SQSizeY)

        g.DrawImage(img, destRect)
    End Sub

    Private Sub DrawWallItems(g As Graphics)
        If verticalWallItems IsNot Nothing Then
            For x As Integer = 0 To verticalWallItems.Length - 1
                If verticalWallItems(x) IsNot Nothing Then
                    For y As Integer = 0 To verticalWallItems(x).Length - 1
                        Dim imageKey As String = verticalWallItems(x)(y)
                        If Not String.IsNullOrEmpty(imageKey) AndAlso imageDictionary.ContainsKey(imageKey) Then
                            Dim img As Image = imageDictionary(imageKey)
                            ImageAnimator.UpdateFrames(img)
                            Dim wallX As Integer = INDENT + x * (SQSizeX + WALL_THICKNESS) - (WALL_THICKNESS \ 2)
                            Dim wallY As Integer = INDENT + y * (SQSizeY + WALL_THICKNESS) + (WALL_THICKNESS \ 2)
                            Dim wallWidth As Integer = WALL_THICKNESS
                            Dim wallHeight As Integer = SQSizeY

                            Dim newWidth As Integer = img.Width
                            Dim newHeight As Integer = wallHeight

                            Dim centeredX As Integer = wallX + (wallWidth - newWidth) \ 2

                            Dim drawRect As New Rectangle(centeredX, wallY, newWidth, newHeight)
                            g.DrawImage(img, drawRect)
                        End If
                    Next
                End If
            Next
        End If

        If horizontalWallItems IsNot Nothing Then
            For x As Integer = 0 To horizontalWallItems.Length - 1
                If horizontalWallItems(x) IsNot Nothing Then
                    For y As Integer = 0 To horizontalWallItems(x).Length - 1
                        Dim imageKey As String = horizontalWallItems(x)(y)
                        If Not String.IsNullOrEmpty(imageKey) AndAlso imageDictionary.ContainsKey(imageKey) Then
                            Dim img As Image = imageDictionary(imageKey)
                            ImageAnimator.UpdateFrames(img)
                            Dim wallX As Integer = INDENT + x * (SQSizeX + WALL_THICKNESS) + (WALL_THICKNESS \ 2)
                            Dim wallY As Integer = INDENT + y * (SQSizeY + WALL_THICKNESS) - (WALL_THICKNESS \ 2)
                            Dim wallWidth As Integer = SQSizeX
                            Dim wallHeight As Integer = WALL_THICKNESS

                            Dim newWidth As Integer = wallWidth
                            Dim newHeight As Integer = img.Height

                            Dim centeredY As Integer = wallY + (wallHeight - newHeight) \ 2

                            Dim drawRect As New Rectangle(wallX, centeredY, newWidth, newHeight)
                            g.DrawImage(img, drawRect)
                        End If
                    Next
                End If
            Next
        End If
    End Sub

    Private Sub OnRedrawTick(sender As Object, e As EventArgs)
        picTest.Invalidate()
    End Sub

    Private Sub OnIdleTick(sender As Object, e As EventArgs)
        lastDirection = "Idle"
    End Sub

#End Region

#Region "Closing"
    Private Sub frmGame_FormClosing(sender As Object, e As FormClosingEventArgs) Handles MyBase.FormClosing
        StopAndDisposeAnimationTimer()
        StopAndDisposeMovingObjectsTimer()
        ClearMovingObjectsList()
        StopMusicPlayback()
        StopSoundEffects()
        StopAndDisposeRedrawTimer()
        StopAndDisposeIdleTimer()
    End Sub

    Private Sub StopAndDisposeAnimationTimer()
        If animationTimer IsNot Nothing Then
            animationTimer.Stop()
            animationTimer.Dispose()
            animationTimer = Nothing
        End If
    End Sub

    Private Sub StopAndDisposeMovingObjectsTimer()
        If movingObjectsTimer IsNot Nothing Then
            movingObjectsTimer.Stop()
            movingObjectsTimer.Dispose()
            movingObjectsTimer = Nothing
        End If
    End Sub
    Private Sub StopAndDisposeIdleTimer()
        If idleTimer IsNot Nothing Then
            idleTimer.Stop()
            idleTimer.Dispose()
            idleTimer = Nothing
        End If
    End Sub

    Private Sub ClearMovingObjectsList()
        movingObjects.Clear()
    End Sub

    Private Sub StopMusicPlayback()
        musicManager.StopMusic()
    End Sub

    Private Sub StopSoundEffects()
        sfxManager.StopSoundEffects()
    End Sub

    Private Sub StopAndDisposeRedrawTimer()
        If redrawTimer IsNot Nothing Then
            redrawTimer.Stop()
            redrawTimer.Dispose()
            redrawTimer = Nothing
        End If
    End Sub

    Private Sub btnClose_Click(sender As Object, e As EventArgs) Handles btnCLose.Click
        Close()
    End Sub

#End Region

#Region "Utility Methods"
    Private Function GetProjectDirectory() As String
        Dim dir As DirectoryInfo = New DirectoryInfo(Application.StartupPath)
        For i As Integer = 1 To 4
            If dir.Parent IsNot Nothing Then
                dir = dir.Parent
            End If
        Next
        Return dir.FullName
    End Function

    Private Sub LoadRoomFromFile(filePath As String)
        Try
            Dim options As New JsonSerializerOptions With {
            .IncludeFields = True,
            .PropertyNameCaseInsensitive = True
        }
            Dim jsonString As String = File.ReadAllText(filePath)
            Dim roomData As RoomData = JsonSerializer.Deserialize(Of RoomData)(jsonString, options)

            If roomData Is Nothing Then
                MessageBox.Show("Error: Failed to deserialize room data.")
                Return
            End If

            RestoreRoomData(roomData)
            CountKeysInGrid(roomData)
            CountCoinsInGrid(roomData) ' Count the total number of coins available

            ' Invalidate the picTest control to redraw the grid
            picTest.Invalidate()
        Catch ex As Exception
            MessageBox.Show("Error loading room: " & ex.ToString())
        End Try
    End Sub

    Private Sub CountCoinsInGrid(roomData As RoomData)
        totalCoins = 0
        For x As Integer = 0 To roomData.placedItems.Length - 1
            If roomData.placedItems(x) IsNot Nothing Then
                For y As Integer = 0 To roomData.placedItems(x).Length - 1
                    If roomData.placedItems(x)(y) IsNot Nothing AndAlso roomData.placedItems(x)(y).ImageKey = "picCoin" Then
                        totalCoins += 1
                    End If
                Next
            End If
        Next
        UpdateCoinLabel()
    End Sub

    Private Sub CountKeysInGrid(roomData As RoomData)
        totalKeys = 0
        For x As Integer = 0 To roomData.placedItems.Length - 1
            If roomData.placedItems(x) IsNot Nothing Then
                For y As Integer = 0 To roomData.placedItems(x).Length - 1
                    If roomData.placedItems(x)(y) IsNot Nothing AndAlso roomData.placedItems(x)(y).ImageKey = "picKey" Then
                        totalKeys += 1
                    End If
                Next
            End If
        Next
        UpdateKeyLabel()
    End Sub

    Private Sub RestoreRoomData(roomData As RoomData)
        Try
            SQCOUNTX = roomData.GridSizeX
            SQCOUNTY = roomData.GridSizeY

            wallsHatchStyle = CType(roomData.wallsHatchStyleValue, HatchStyle)
            wallsColor1 = Color.FromArgb(roomData.wallsColor1Argb)
            wallsColor2 = Color.FromArgb(roomData.wallsColor2Argb)
            floorsHatchStyle = CType(roomData.floorsHatchStyleValue, HatchStyle)
            floorsColor1 = Color.FromArgb(roomData.floorsColor1Argb)
            floorsColor2 = Color.FromArgb(roomData.floorsColor2Argb)

            verticalWalls = roomData.verticalWalls
            horizontalWalls = roomData.horizontalWalls
            floorsUseEdgeStyle = roomData.floorsUseEdgeStyle

            placedItems = RestorePlacedItems(roomData.placedItems)
            verticalWallItems = RestorePlacedItems(roomData.verticalWallItems)
            horizontalWallItems = RestorePlacedItems(roomData.horizontalWallItems)

            SelectedMusic = roomData.SelectedMusic
            lblName.Text = roomData.LevelName
            PlaySelectedMusic()

            ' Ensure the useGradient property is restored
            useGradient = roomData.useGradient

            isRoomDataLoaded = True
            picTest.Invalidate()
        Catch ex As Exception
            MessageBox.Show("Error restoring room data: " & ex.ToString())
        End Try
    End Sub

    Private Function RestorePlacedItems(data As PlacedItemData()()) As String()()
        If data Is Nothing Then Return Nothing
        Dim lengthOuter As Integer = data.Length
        Dim restoredItems As String()() = New String(lengthOuter - 1)() {}
        For x As Integer = 0 To lengthOuter - 1
            If data(x) IsNot Nothing Then
                Dim lengthInner As Integer = data(x).Length
                restoredItems(x) = New String(lengthInner - 1) {}
                For y As Integer = 0 To lengthInner - 1
                    If data(x)(y) IsNot Nothing Then
                        restoredItems(x)(y) = data(x)(y).ImageKey
                    Else
                        restoredItems(x)(y) = Nothing
                    End If
                Next
            Else
                restoredItems(x) = Nothing
            End If
        Next
        Return restoredItems
    End Function

    Private Sub OnItemAnimationTick(sender As Object, e As EventArgs)
        For i As Integer = itemAnimations.Count - 1 To 0 Step -1
            Dim itemAnimation = itemAnimations(i)
            itemAnimation.UpdatePosition()
            If itemAnimation.IsAnimationComplete() Then
                itemAnimations.RemoveAt(i)
            End If
        Next
        ' No need to invalidate here, the redraw timer will handle it
    End Sub

    Private Sub btnRetry_Click(sender As Object, e As EventArgs) Handles btnRetry.Click
        RestartLevel()
    End Sub

    Private Sub RestartLevel()
        ' Reload the room data to reset the placedItems array
        LoadRoomData()

        ' Reset player position
        FindPlayerStartPosition()

        ' Reset collected items
        CollectedCoins = 0
        collectedKeys = 0
        UpdateCoinLabel()
        UpdateKeyLabel()

        ' Reset moving objects
        movingObjects.Clear()
        AddObjectsOnFlippersToMovingObjects()

        ' Reset animations
        itemAnimations.Clear()
    End Sub

    Private Sub btnMinimize_Click(sender As Object, e As EventArgs) Handles btnMinimize.Click
        Me.WindowState = FormWindowState.Minimized
    End Sub

    Protected Overrides ReadOnly Property CreateParams() As CreateParams
        Get
            Dim cp As CreateParams = MyBase.CreateParams
            cp.ExStyle = cp.ExStyle Or &H2000000 ' WS_EX_COMPOSITED
            Return cp
        End Get
    End Property

#End Region

End Class

Public Class DoubleBufferedPictureBox
    Inherits PictureBox

    Public Sub New()
        Me.DoubleBuffered = True
    End Sub
End Class

Public Class NoBorderToolStripRenderer
    Inherits ToolStripRenderer

    Protected Overrides Sub OnRenderToolStripBorder(e As ToolStripRenderEventArgs)
        ' Do nothing to prevent the border from being drawn
    End Sub

    Protected Overrides Sub OnRenderButtonBackground(e As ToolStripItemRenderEventArgs)
        ' Do nothing to prevent the button background from being drawn
    End Sub

    Protected Overrides Sub OnRenderItemBackground(e As ToolStripItemRenderEventArgs)
        ' Do nothing to prevent the item background from being drawn
    End Sub
End Class

I've done soemthing wrong and can no longer push blocks? Can you see why??