Public Class MainGameFunctions

    Public Shared Sub FunctionKeys()
        If KeyBoardHandler.KeyPressed(KeyBindings.GUIControlKey) = True Then
            Core.GameOptions.ShowGUI = Not Core.GameOptions.ShowGUI
            Core.GameOptions.SaveOptions()
        ElseIf KeyBoardHandler.KeyPressed(KeyBindings.ScreenshotKey) AndAlso Core.CurrentScreen.CanTakeScreenshot Then
            CaptureScreen()
        ElseIf KeyBoardHandler.KeyPressed(KeyBindings.DebugKey) Then
            Core.GameOptions.ShowDebug += 1
            If Core.GameOptions.ShowDebug >= 2 Then
                Core.GameOptions.ShowDebug = 0
            End If
            Core.GameOptions.SaveOptions()
        ElseIf KeyBoardHandler.KeyPressed(KeyBindings.LightKey) Then
            Core.GameOptions.LightingEnabled = Not Core.GameOptions.LightingEnabled
            Core.GameOptions.SaveOptions()

            If Core.GameOptions.LightingEnabled Then
                Core.GameMessage.ShowMessage(Localization.GetString("game_message_lighting_on", "Lighting Enabled"), 12, FontManager.MainFont, Color.White)
            Else
                Core.GameMessage.ShowMessage(Localization.GetString("game_message_lighting_off", "Lighting Disabled"), 12, FontManager.MainFont, Color.White)
            End If
        ElseIf KeyBoardHandler.KeyPressed(KeyBindings.FullScreenKey) AndAlso Core.CurrentScreen.CanGoFullscreen Then
            ToggleFullScreen()
        ElseIf KeyBoardHandler.KeyPressed(KeyBindings.MuteMusicKey) AndAlso Core.CurrentScreen.CanMuteMusic Then
            MusicManager.Muted = Not MediaPlayer.IsMuted
            SoundManager.Muted = MediaPlayer.IsMuted
            Core.GameOptions.SaveOptions()
            Core.CurrentScreen.ToggledMute()
        End If

        If KeyBoardHandler.KeyDown(KeyBindings.DebugKey) = True Then
            If KeyBoardHandler.KeyPressed(Keys.F) Then
                TextureManager.TextureList.Clear()
                Core.GameMessage.ShowMessage(Localization.GetString("game_message_debug_texture_list_clear", "Texture list have cleared"), 12, FontManager.MainFont, Color.White)
            ElseIf KeyBoardHandler.KeyPressed(Keys.S) Then
                Core.SetWindowSize(New Vector2(1200, 680))
            ElseIf KeyBoardHandler.KeyPressed(Keys.L) Then
                Logger.DisplayLog = Not Logger.DisplayLog
            ElseIf KeyBoardHandler.KeyPressed(Keys.B) Then
                Entity.drawViewBox = Not Entity.drawViewBox
            End If
        End If

        If ControllerHandler.ButtonPressed(Buttons.Back, True) = True Then
            Core.GameOptions.GamePadEnabled = Not Core.GameOptions.GamePadEnabled
            If Core.GameOptions.GamePadEnabled Then
                Core.GameMessage.ShowMessage("Enabled XBOX 360 GamePad support.", 12, FontManager.MainFont, Color.White)
            Else
                Core.GameMessage.ShowMessage("Disabled XBOX 360 GamePad support.", 12, FontManager.MainFont, Color.White)
            End If
            Core.GameOptions.SaveOptions()
        End If
    End Sub

    Private Shared Sub CaptureScreen()
        Try
            Core.GameMessage.HideMessage()

            Dim fileName As String = ""
            With My.Computer.Clock.LocalTime
                Dim month As String = .Month.ToString()
                If month.Length = 1 Then
                    month = "0" & month
                End If
                Dim day As String = .Day.ToString()
                If day.Length = 1 Then
                    day = "0" & day
                End If
                Dim hour As String = .Hour.ToString()
                If hour.Length = 1 Then
                    hour = "0" & hour
                End If
                Dim minute As String = .Minute.ToString()
                If minute.Length = 1 Then
                    minute = "0" & minute
                End If
                Dim second As String = .Second.ToString()
                If second.Length = 1 Then
                    second = "0" & second
                End If
                fileName = .Year & "-" & month & "-" & day & "_" & hour & "." & minute & "." & second & ".png"
            End With

            If Directory.Exists(GameController.GamePath & "\screenshots\") = False Then
                Directory.CreateDirectory(GameController.GamePath & "\screenshots\")
            End If

            If Core.GraphicsManager.IsFullScreen = False Then
                Dim b As New Drawing.Bitmap(Core.windowSize.Width, Core.windowSize.Height)
                Using g As Drawing.Graphics = Drawing.Graphics.FromImage(b)
                    g.CopyFromScreen(Core.Window.ClientBounds.X, Core.Window.ClientBounds.Y, 0, 0, New Drawing.Size(b.Width, b.Height))
                End Using

                b.Save(GameController.GamePath & "\screenshots\" & fileName, Drawing.Imaging.ImageFormat.Png)
            Else
                Dim screenshot As New RenderTarget2D(Core.GraphicsDevice, Core.windowSize.Width, Core.windowSize.Height, False, SurfaceFormat.Color, DepthFormat.Depth24Stencil8)
                Core.GraphicsDevice.SetRenderTarget(screenshot)

                Core.Draw()

                Core.GraphicsDevice.SetRenderTarget(Nothing)

                Dim stream As Stream = File.OpenWrite(GameController.GamePath & "\screenshots\" & fileName)
                screenshot.SaveAsPng(stream, Core.windowSize.Width, Core.windowSize.Height)
                stream.Dispose()
            End If

            Core.GameMessage.SetupText(Localization.GetString("game_message_screenshot") & fileName, FontManager.MainFont, Color.White)
            Core.GameMessage.ShowMessage(12, Core.GraphicsDevice)
        Catch ex As Exception
            Logger.Log(Logger.LogTypes.ErrorMessage, "Basic.vb: " & Localization.GetString("game_message_screenshot_failed") & ". More information: " & ex.Message)
        End Try
    End Sub

    Private Shared Sub ToggleFullScreen()
        If Core.GraphicsManager.IsFullScreen = False Then
            ' MonoGame Bug > GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Width != System.Windows.Forms.Screen.PrimaryScreen.Bounds.Width
            ' MonoGame Bug > GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Height != System.Windows.Forms.Screen.PrimaryScreen.Bounds.Height
            ' Temp Fix just in case someone else face this as well.
            If GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Width <> Windows.Forms.Screen.PrimaryScreen.Bounds.Width OrElse
                GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Height <> Windows.Forms.Screen.PrimaryScreen.Bounds.Height Then
                Core.GraphicsManager.PreferredBackBufferWidth = Windows.Forms.Screen.PrimaryScreen.Bounds.Width
                Core.GraphicsManager.PreferredBackBufferHeight = Windows.Forms.Screen.PrimaryScreen.Bounds.Height
                Core.windowSize = New Rectangle(0, 0, Windows.Forms.Screen.PrimaryScreen.Bounds.Width, Windows.Forms.Screen.PrimaryScreen.Bounds.Height)
            Else
                Core.GraphicsManager.PreferredBackBufferWidth = GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Width
                Core.GraphicsManager.PreferredBackBufferHeight = GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Height
                Core.windowSize = New Rectangle(0, 0, GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Width, GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Height)
            End If

            Windows.Forms.Application.VisualStyleState = Windows.Forms.VisualStyles.VisualStyleState.ClientAndNonClientAreasEnabled

            Core.GraphicsManager.ToggleFullScreen()

            Core.GameMessage.ShowMessage(Localization.GetString("game_message_fullscreen_on"), 12, FontManager.MainFont, Color.White)
        Else
            Core.GraphicsManager.PreferredBackBufferWidth = 1200
            Core.GraphicsManager.PreferredBackBufferHeight = 680
            Core.windowSize = New Rectangle(0, 0, 1200, 680)

            Windows.Forms.Application.VisualStyleState = Windows.Forms.VisualStyles.VisualStyleState.ClientAndNonClientAreasEnabled

            Core.GraphicsManager.ToggleFullScreen()

            Core.GameMessage.ShowMessage(Localization.GetString("game_message_fullscreen_off"), 12, FontManager.MainFont, Color.White)
        End If

        Core.GraphicsManager.ApplyChanges()
        NetworkPlayer.ScreenRegionChanged()
    End Sub

End Class