我是编程和OOP的新手,请原谅我缺乏知识。在VB.NET中增加'Rock,Paper,Scissors'以包含'Lizard,Spock',并且使代码更具可扩展性,可维护性和可重用性
正如我岩石的一部分,剪刀布的游戏我有一个抽象超(武器),其中有子类(岩石,纸和剪刀)在VB.NET,如:
Public MustInherit Class Weapons
Public MustOverride Function compareTo(ByVal Weapons As Object) As Integer
End Class
Public Class Paper
Inherits Weapons
Public Overrides Function compareTo(ByVal Weapons As Object) As Integer
If TypeOf Weapons Is Paper Then
Return 0
ElseIf TypeOf Weapons Is Rock Then
Return 1
Else
Return -1
End If
End Function
End Class
Public Class Rock
Inherits Weapons
Public Overrides Function compareTo(ByVal Weapons As Object) As Integer
If TypeOf Weapons Is Rock Then
Return 0
ElseIf TypeOf Weapons Is Scissors Then
Return 1
Else
Return -1
End If
End Function
End Class
Public Class Scissors
Inherits Weapons
Public Overrides Function compareTo(ByVal Weapons As Object) As Integer
If TypeOf Weapons Is Scissors Then
Return 0
ElseIf TypeOf Weapons Is Paper Then
Return 1
Else
Return -1
End If
End Function
End Class
而且有一个超球员其中有子类(PlayerComputerRandom,PlayerHumanPlayer和PlayerComputerTactical)像:
Imports RockPaperScissors.Weapons
Public Class Player
Private pName As String
Private pNumberOfGamesWon As String
Public pWeapon As Weapons
Property Name() As String
Get
Return pName
End Get
Set(ByVal value As String)
pName = value
End Set
End Property
Property NumberOfGamesWon As String
Get
Return pNumberOfGamesWon
End Get
Set(ByVal value As String)
pNumberOfGamesWon = value
End Set
End Property
Property getWeapon As Weapons
Get
Return pWeapon
End Get
Set(ByVal value As Weapons)
pWeapon = value
End Set
End Property
Public Sub pickWeapon(ByVal WeaponType As String)
If WeaponType = "Rock" Then
pWeapon = New Rock()
ElseIf WeaponType = "Paper" Then
pWeapon = New Paper()
Else
pWeapon = New Scissors()
End If
End Sub
End Class
Imports RockPaperScissors.Weapons
Public Class PlayerComputerRandom
Inherits Player
Private Enum weaponsList
Rock
Paper
Scissors
End Enum
Public Overloads Sub pickWeapon()
Dim randomChoice = New Random()
Dim CompChoice As Integer = randomChoice.Next(0, [Enum].GetValues(GetType(weaponsList)).Length)
If CompChoice = "0" Then
pWeapon = New Rock()
ElseIf CompChoice = "1" Then
pWeapon = New Paper()
Else
pWeapon = New Scissors()
End If
End Sub
End Class
Public Class PlayerComputerTactical
Inherits Player
Private plastMove As String
Property lastMove() As String
Get
Return plastMove
End Get
Set(ByVal value As String)
plastMove = value
End Set
End Property
Public Overloads Sub pickWeapon()
' Add tactical player functionality
End Sub
End Class
Public Class PlayerHumanPlayer
Inherits Player
End Class
我有GameForm类实例化的对象,并且执行用于前端的各种其它逻辑,如下所示:
Public Class GameForm
Private Sub btnRock_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRock.Click
findWinner("HumanPlayer", "Rock", "RandomComputer")
End Sub
Private Sub btnPaper_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPaper.Click
findWinner("HumanPlayer", "Paper", "RandomComputer")
End Sub
Private Sub btnScissors_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnScissors.Click
findWinner("HumanPlayer", "Scissors", "RandomComputer")
End Sub
Public Sub findWinner(ByVal p1name As String, ByVal p1WeaponSelected As String, ByVal p2Name As String)
Dim player1 = New PlayerHumanPlayer()
Dim player2 = New PlayerComputerRandom()
player1.Name = p1name
player1.pickWeapon(p1WeaponSelected) ' Should I be using the Rock Class???
player2.Name = p2Name
player2.pickWeapon()
Dim winner As Integer = player1.getWeapon().compareTo(player2.getWeapon())
Select Case winner
Case 1
txtGameStatus.Text = player1.Name() + " wins!"
Case -1
txtGameStatus.Text = player2.Name() + " wins!"
Case 0
txtGameStatus.Text = "Draw!"
End Select
End Sub
End Class
我需要做的是能够添加新武器(蜥蜴,Spock),我知道我可以通过简单地添加子类(蜥蜴,Spock),它继承武器基类。
但是,这将需要更改所有子类的代码(Rock,Paper and Scissors),这不是一个真正的长期可维护解决方案。当然不是最佳实践。
即时通讯编程和面向对象的新方法如此,有人可以善意地表明我可以如何增强现有的游戏,轻松地允许添加额外的武器?我可以使用数据库表来存储武器吗?如果是这样,你能展示一下吗?我只想为这个游戏提供长期的,可重用的解决方案。
任何想法,我可以如何实现这一目标?任何帮助将不胜感激。
提前
感谢您的及时回复......我会在午餐时间尝试。所以我认为上面的代码也决定谁是赢家?我如何在GameForm类的findWinner()函数中使用它?有一次,我再次道歉,并且感谢你的支持 – AJsStack
'Weapon'类实现了'IComparable(Of Weapon)',所以你仍然可以使用'CompareTo'来获得胜利者。 – igrimpe