' Snakeeyes Example

' Simulate rolls of two fair dice.
' Count how many rolls are needed to obtain snakeeyes (pair of ones).

Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents txtNumRolls As System.Windows.Forms.TextBox
    Friend WithEvents btnNewSimulation As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.txtNumRolls = New System.Windows.Forms.TextBox
        Me.btnNewSimulation = New System.Windows.Forms.Button
        Me.SuspendLayout()
        '
        'txtNumRolls
        '
        Me.txtNumRolls.Font = New System.Drawing.Font("Microsoft Sans Serif", 14.25!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.txtNumRolls.Location = New System.Drawing.Point(24, 16)
        Me.txtNumRolls.Name = "txtNumRolls"
        Me.txtNumRolls.Size = New System.Drawing.Size(240, 29)
        Me.txtNumRolls.TabIndex = 0
        Me.txtNumRolls.Text = ""
        '
        'btnNewSimulation
        '
        Me.btnNewSimulation.Font = New System.Drawing.Font("Microsoft Sans Serif", 14.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.btnNewSimulation.Location = New System.Drawing.Point(24, 64)
        Me.btnNewSimulation.Name = "btnNewSimulation"
        Me.btnNewSimulation.Size = New System.Drawing.Size(240, 40)
        Me.btnNewSimulation.TabIndex = 1
        Me.btnNewSimulation.Text = "New Simulation"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 126)
        Me.Controls.Add(Me.btnNewSimulation)
        Me.Controls.Add(Me.txtNumRolls)
        Me.Name = "Form1"
        Me.Text = "SnakeEyes Example"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub btnNewSimulation_Click(ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles btnNewSimulation.Click

        Dim r As New Random
        Dim count, die1, die2 As Integer

        count = 0
        Do
            die1 = r.Next(1, 7)
            die2 = r.Next(1, 7)
            count += 1
        Loop Until die1 = 1 And die2 = 1
        txtNumRolls.Text = count
    End Sub
End Class