Справочник Жаркова по проектированию и программированию искусственного интеллекта. Том 6: Программирование на Visual Basic искусственного интеллекта. Продолжение 2
<summary>
''' Represents one high score.
''' </summary>
''' <remarks></remarks>
Public Class HighScore
Implements IComparable
Public nameValue As String
Public scoreValue As Integer
Public Property Name() As String
Get
Return nameValue
End Get
Set(ByVal Value As String)
nameValue = Value
End Set
End Property
Public Property Score() As Integer
Get
Return scoreValue
End Get
Set(ByVal Value As Integer)
scoreValue = Value
End Set
End Property
Public Overrides Function ToString() As String
Return Name & ":" & Score
End Function
Public Sub New(ByVal saved As String)
Name = saved.Split(":".ToCharArray)(0)
Score = CInt(saved.Split(":".ToCharArray)(1))
End Sub
Public Function CompareTo(ByVal obj As Object) As Integer Implements System.IComparable.CompareTo
Dim other As HighScore
other = CType(obj, HighScore)
Return Me.Score – other.Score
End Function
End Class
По второму варианту, в панели Solution Explorer выполняем правый щелчок по имени проекта и в контекстном меню выбираем Add, New Item, в панели Add New Item выделяем шаблон Code File, в окне Name записываем имя HighScores.vb и щёлкаем кнопку Add. В проект (и в панель Solution Explorer) добавляется этот файл, открывается пустое окно редактирования кода, в которое записываем код со следующего листинга.
Листинг 20.19. Новый файл.
Imports Microsoft.Win32
''' <summary>
''' Reads and writes the top three high scores to the registry.
''' </summary>
''' <remarks></remarks>
Public Class HighScores
''' <summary>
''' Read scores from the registry.
''' </summary>
''' <returns></returns>
''' <remarks></remarks>
Public Shared Function GetHighScores() As HighScore()
Dim tops(2) As HighScore
Dim scoreKey As RegistryKey = Registry.CurrentUser. _
CreateSubKey("Software\VBSamples\Collapse\HighScores")
For index As Integer = 0 To 2
Dim key As String = "place" & index.ToString
Dim score As New HighScore(CStr(scoreKey.GetValue(key)))
tops(index) = score
Next
scoreKey.Close()
Return tops
End Function
''' <summary>
''' Update and write the high scores.
''' </summary>
''' <param name="score"></param>
''' <remarks></remarks>
Public Shared Sub UpdateScores(ByVal score As Integer)
Dim tops(3) As HighScore
Dim scoreKey As RegistryKey = Registry.CurrentUser. _
CreateSubKey("Software\VBSamples\Collapse\HighScores")
tops(0) = New HighScore(scoreKey.GetValue("Place0").ToString)
tops(1) = New HighScore(scoreKey.GetValue("Place1").ToString)
tops(2) = New HighScore(scoreKey.GetValue("Place2").ToString)
If score > tops(2).Score Then
Dim name As String = InputBox("New high score of " & _
score & " for:")
tops(3) = New HighScore(" :0")
tops(3).Name = name
tops(3).Score = score
Array.Sort(tops)
Array.Reverse(tops)
scoreKey.SetValue("Place0", tops(0).ToString)
scoreKey.SetValue("Place1", tops(1).ToString)
scoreKey.SetValue("Place2", tops(2).ToString)
End If
scoreKey.Close()
End Sub
''' <summary>
''' Set up the entries for new scores.
''' </summary>
''' <remarks></remarks>
Shared Sub SetUpHighScores()
Dim scoreKey As RegistryKey = Registry.CurrentUser. _
CreateSubKey("Software\VBSamples\Collapse\HighScores")
If scoreKey.GetValue("Place1") Is Nothing Then
scoreKey.SetValue("Place0", " :0")
scoreKey.SetValue("Place1", " :0")
scoreKey.SetValue("Place2", " :0")
End If
scoreKey.Close()
End Sub
''' <summary>
''' Reset scores.
''' </summary>
''' <remarks></remarks>
Shared Sub ResetScores()
Dim scoreKey As RegistryKey = Registry.CurrentUser. _
CreateSubKey("Software\VBSamples\Collapse\HighScores")
scoreKey.SetValue("Place0", " :0")
scoreKey.SetValue("Place1", " :0")
scoreKey.SetValue("Place2", " :0")
scoreKey.Close()
End Sub
End Class
По второму варианту, в панели Solution Explorer выполняем правый щелчок по имени проекта и в контекстном меню выбираем Add, New Item, в панели Add New Item выделяем шаблон Code File, в окне Name записываем имя PointTranslator.vb и щёлкаем