表格2是输入梯形底座及其偏离设定值，以及蛇头所在的蛇并且跳过设定值。 无法弄清楚为什么它不起作用。当输入值以显示模拟时，它显示错误sandl是私有的，另一个是验证错误。
Public Class Form2
Dim sandl(99) As Integer
Dim snakeshead As TextBox()
Dim snakesoffset As TextBox()
Dim ladderfoot As TextBox()
Dim ladderoffset As TextBox()
Dim rnd As Random = New Random
Sub initialise()
For i = 0 To 99
sandl(i) = 0 ' reset data
Next
End Sub
Sub snake()
snakeshead = {txthead1, txthead2, txthead3, txthead4, txthead5, txthead6, txthead7, txthead8, txthead9, txthead10}
snakesoffset = {txtoffset1, txtoffset2, txtoffset3, txtoffset4, txtoffset5, txtoffset6, txtoffset7, txtoffset8, txtoffset9, txtoffset10}
' SnakeHead(i).Text = (i + 81).ToString
' SnakeOffset(i).Text = "10" '(i + 10).ToString
For i As Integer = 0 To 9
While True
Dim base = rnd.Next(90) + 11
If sandl(base - 1) <> 0 Then
Continue While
End If
Dim offset = rnd.Next(20) + 10
If base - offset < 1 Then
Continue While
End If
snakeshead(i).Text = base.ToString
snakesoffset(i).Text = offset.ToString
sandl(base - 1) = -offset
Exit While
End While
Next
End Sub
Sub ladders()
ladderfoot = {txtladder1, txtladder2, txtladder3, txtladder4, txtladder5, txtladder6, txtladder7, txtladder8, txtladder9, txtladder10}
ladderoffset = {txtladderoffset1, txtladderoffset2, txtladderoffset3, txtladderoffset4, txtladderoffset5, txtladderoffset6, txtladderoffset7, txtladderoffset8, txtladderoffset9, txtladderoffset10}
'For i As Integer = 0 To 9
' LadderFoot(i).Text = (i + 11).ToString
' LadderOffset(i).Text = "10"
For i As Integer = 0 To 99
sandl(i) = 0 'reset data
Next
For i As Integer = 0 To 9
While True
Dim base = rnd.Next(90) + 1
If sandl(base - 1) <> 0 Then
Continue While
End If
Dim offset = rnd.Next(20) + 10
If base + offset > 100 Then
Continue While
End If
ladderfoot(i).Text = base.ToString
ladderoffset(i).Text = offset.ToString
sandl(base - 1) = offset
Exit While
End While
Next
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
For i As Integer = 0 To 99
sandl(i) = 0 'reset data
Next
Dim valid = Validate(ladderfoot, ladderoffset, +1, "Ladder")
If (valid) Then
valid = Validate(snakeshead, snakesoffset, -1, "Snake")
End If
If (valid) Then
'Form3 = New Form3
Form3.ShowDialog()
End If
End Sub
Private Function Validate(tbBase() As TextBox, tbOffset() As TextBox, delta As Integer, s As String) As Boolean
For i As Integer = 0 To 9
Dim base As Integer
If ((Not Integer.TryParse(tbBase(i).Text.Trim(), base)) OrElse (base < 1) OrElse (base > 100) OrElse (sandl(base - 1) <> 0)) Then
MessageBox.Show(s & (i + 1).ToString() & " base is invalid.")
tbBase(i).Select()
tbBase(i).SelectAll()
Return False
End If
base -= 1 'zero based
Dim offset As Integer
If ((Not Integer.TryParse(tbOffset(i).Text.Trim(), offset)) OrElse (offset < 10) OrElse (offset > 30) OrElse (base + offset * delta < 0) OrElse (base + offset * delta >= 100)) Then
MessageBox.Show(s & (i + 1).ToString() & " offset is invalid.")
tbOffset(i).Select()
tbOffset(i).SelectAll()
Return False
End If
sandl(base) = offset * delta 'write offset
Next
Return True
End Function
End Class
Public Class Form3
Enum EState
Dice
Move
Slide
Wait
Win
End Enum
Dim Fnt = New Font("Arial", 16)
Dim FntBig = New Font("Arial", 256)
Dim Frame As Integer = -1 'counter
Dim State = EState.Dice
Dim Rnd As Random = New Random
Dim Dice As Integer
Dim Pos As Point = New Point(32, 640 + 32)
Dim CurrentIndex As Integer = -1
Dim NextIndex As Integer
Dim TargetIndex As Integer
Private Sub Form3_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Dice = 0
Frame = -1
State = EState.Dice
Pos = New Point(32, 640 + 32)
CurrentIndex = -1
End Sub
Private Sub PictureBox1_Paint(sender As Object, e As PaintEventArgs) Handles PictureBox1.Paint
DrawBackground(e.Graphics)
Frame += 1
Dim oldState = State
Select Case State
Case EState.Dice
If Frame = 0 Then
Dice = Rnd.Next(6) + 1 'roll dice
TargetIndex = CurrentIndex + Dice
NextIndex = CurrentIndex
ElseIf Frame >= 63 Then
If CurrentIndex + Dice < 100 Then
State = EState.Move 'valid dice
Else
State = EState.Wait 'invalid dice
End If
Dice = 0
End If
Case EState.Move
If Frame Mod 64 = 0 Then
CurrentIndex = NextIndex
If CurrentIndex = TargetIndex Then
If CurrentIndex < 99 Then 'not win
If Form2.sandl(CurrentIndex) <> 0 Then
State = EState.Slide 'snake or ladder
Else
State = EState.Dice 'empty tile
End If
TargetIndex = CurrentIndex + Form2.sandl(CurrentIndex)
Else
State = EState.Win 'win
End If
Else
NextIndex = CurrentIndex + 1 'move
End If
Else
Dim c = GetCoordinate(CurrentIndex)
Dim n = GetCoordinate(NextIndex)
Dim dx = (n.X - c.X)
Dim dy = (n.Y - c.Y)
Pos.X = c.X * 64 + (dx * (Frame Mod 64)) + 32
Pos.Y = c.Y * 64 + (dy * (Frame Mod 64)) + 32
End If
Case EState.Slide
If Frame >= 63 Then
CurrentIndex = TargetIndex
If CurrentIndex < 99 Then
State = EState.Dice 'not win
Else
State = EState.Win 'win
End If
Else
Dim c = GetCoordinate(CurrentIndex)
Dim n = GetCoordinate(TargetIndex)
Dim dx = (n.X - c.X)
Dim dy = (n.Y - c.Y)
Pos.X = c.X * 64 + (dx * (Frame Mod 64)) + 32
Pos.Y = c.Y * 64 + (dy * (Frame Mod 64)) + 32
End If
Case EState.Wait
If Frame >= 63 Then
State = EState.Dice
End If
End Select
e.Graphics.FillEllipse(Brushes.Blue, Pos.X - 16, Pos.Y - 16, 32, 32) 'draw player
If Dice > 0 Then
Dim size = e.Graphics.MeasureString(Dice.ToString, FntBig)
e.Graphics.DrawString(Dice.ToString, FntBig, Brushes.Black, 320 - size.Width / 2, 320 - size.Height / 2) 'print dice
End If
If State <> oldState Then
Frame = -1 'reset counter
End If
If State <> EState.Win Then
PictureBox1.Invalidate() 'schedule next paint
End If
End Sub
Private Sub DrawBackground(g As Graphics)
For y As Integer = 0 To 9
For x As Integer = 0 To 9
If (((x + y) Mod 2) = 0) Then
g.FillRectangle(Brushes.LightGray, x * 64, y * 64, 64, 64) 'dark rectangle
End If
Dim z = (9 - y) * 10 + x + 1
If y Mod 2 = 0 Then
z = (9 - y) * 10 + (9 - x) + 1
End If
g.DrawString(z.ToString, Fnt, Brushes.Black, x * 64, y * 64) 'number
Next
Next
For i As Integer = 0 To 99
If Form2.sandl(i) <> 0 Then
Dim base = GetCoordinate(i)
Dim offset = GetCoordinate(i + Form2.sandl(i))
If Form2.sandl(i) > 0 Then 'ladder
Dim delta = Math.Abs(base.X - offset.X) + 4
g.DrawLine(Pens.Green, base.X * 64 + 32 - delta, base.Y * 64 + 32, offset.X * 64 + 32 - delta, offset.Y * 64 + 32) 'left part
g.DrawLine(Pens.Green, base.X * 64 + 32 + delta, base.Y * 64 + 32, offset.X * 64 + 32 + delta, offset.Y * 64 + 32) 'right part
Else 'snake
g.DrawLine(Pens.Red, base.X * 64 + 32, base.Y * 64 + 32, offset.X * 64 + 32, offset.Y * 64 + 32) 'red line
End If
End If
Next
End Sub
Private Function GetCoordinate(i As Integer) As Point
Dim result As Point
result.Y = 9 - (i \ 10)
result.X = i Mod 10
If result.Y Mod 2 = 0 Then
result.X = 9 - result.X
End If
Return result
End Function
End Class
答案 0 :(得分：0)
在Form2中，从
更改声明Dim sandl(99) As Integer
到
Public sandl(99) As Integer
这将允许Form3访问整数数组
将Validate方法重命名为其他内容，例如ValidateTextBoxes，或者如果您想重载base.Validate，则声明为
Private Overloads Function Validate