VB 09/10 Matrix Source

Module Module1
   Sub Main(ByVal args As String())
       Console.Title = "Matrix"
       Console.ForegroundColor = ConsoleColor.DarkGreen
       Console.WindowLeft = InlineAssignHelper(Console.WindowTop, 0)
       Console.WindowHeight = InlineAssignHelper(Console.BufferHeight, Console.LargestWindowHeight)
       Console.WindowWidth = InlineAssignHelper(Console.BufferWidth, Console.LargestWindowWidth)
#If readkey Then
Console.WriteLine("Hit any key to continue")
Console.ReadKey()
#End If
       Console.CursorVisible = False
       Dim width As Integer, height As Integer
       Dim y As Integer()
       Dim l As Integer()
       Initialize(width, height, y, l)
       Dim ms As Integer
       While True
           Dim t1 As DateTime = DateTime.Now
           MatrixStep(width, height, y, l)
           ms = 10 - CInt(DirectCast((DateTime.Now - t1), TimeSpan).TotalMilliseconds)
           If ms > 0 Then
               System.Threading.Thread.Sleep(ms)
           End If
           If Console.KeyAvailable Then
               If Console.ReadKey().Key = ConsoleKey.F5 Then
                   Initialize(width, height, y, l)
               End If
           End If
       End While
   End Sub
   Dim thistime As Boolean = False
   Sub MatrixStep(ByVal width As Integer, ByVal height As Integer, ByVal y As Integer(), ByVal l As Integer())
       Dim x As Integer
       thistime = Not thistime
       For x = 0 To width - 1
           If x Mod 11 = 10 Then
               If Not thistime Then
                   Continue For
               End If
               Console.ForegroundColor = ConsoleColor.White
           Else
               Console.ForegroundColor = ConsoleColor.DarkGreen
               Console.SetCursorPosition(x, inBoxY(CInt(y(x) - 2 - (l(x) / 40 * 2)), height))
               Console.Write("A")
               Console.ForegroundColor = ConsoleColor.Green
           End If
           Console.SetCursorPosition(x, y(x))
           Console.Write("L")
           y(x) = inBoxY(y(x) + 1, height)
           Console.SetCursorPosition(x, inBoxY(y(x) - l(x), height))
           Console.Write(" "c)
       Next
   End Sub

   Private Sub Initialize(ByRef width As Integer, ByRef height As Integer, ByRef y As Integer(), ByRef l As Integer())
       Dim h1 As Integer
       Dim h2 As Integer = CInt((InlineAssignHelper(h1, CInt((InlineAssignHelper(height, Console.WindowHeight)) / 2))) / 2)
       width = Console.WindowWidth - 1
       y = New Integer(width - 1) {}
       l = New Integer(width - 1) {}
       Dim x As Integer
       Console.Clear()
       For x = 0 To width - 1
           y(x) = m_r.[Next](height)
           l(x) = m_r.[Next](h2 * (If((x Mod 11 <> 10), 2, 1)), h1 * (If((x Mod 11 <> 10), 2, 1)))
       Next
   End Sub

   Dim m_r As New Random()

   Private ReadOnly Property R() As Char
       Get
           Dim t As Integer = m_r.[Next](10)
           If t <= 2 Then
               Return CChar(("0"c & m_r.[Next](10)))
           ElseIf t <= 4 Then
               Return CChar(("a"c & m_r.[Next](27)))
           ElseIf t <= 6 Then
               Return CChar(("A"c & m_r.[Next](27)))
           Else
               Return CChar(CChar(CStr((m_r.[Next](32, 255)))))
           End If
       End Get
   End Property

   Public Function inBoxY(ByVal n As Integer, ByVal height As Integer) As Integer
       n = n Mod height
       If n < 0 Then
           Return n + height
       Else
           Return n
       End If
   End Function

   Private Function InlineAssignHelper(Of T)(ByRef target As T, ByVal value As T) As T
       target = value
       Return value
   End Function
End Module