VERSION 1.0 CLASS
BEGIN
  MultiUse = 0   'False
  Persistable = 0  'NotPersistable
  DataBindingBehavior = 0  'vbNone
  DataSourceBehavior  = 0  'vbNone
  MTSTransactionMode  = 0  'NotAnMTSObject
END
Attribute VB_Name = "clsWinMine"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
Option Explicit

' 設(shè)置鼠標左鍵常數(shù)
Private Const LEFT_BUTTON As Byte = 1

' 標明空格的標記
Private Const NONE As Byte = 0
' 標明帶有地雷的方格的標記
Private Const MINE As Byte = 243
' 標明已經(jīng)被打開的方格的標記
Private Const BEEN As Byte = 244
' 標明已經(jīng)被標定為有地雷的方格的標記
Private Const FLAGGED As Byte = 2
' 標明不明確方格的標記
Private Const QUESTION As Byte = 1

' 最大、最小的地雷數(shù)、行數(shù)、列數(shù)
Private Const MIN_MINES As Byte = 10
Private Const MAX_MINES As Byte = 99
Private Const MIN_ROWS As Integer = 8
Private Const MAX_ROWS As Integer = 24
Private Const MIN_COLS As Integer = 8
Private Const MAX_COLS As Integer = 36

' 方格的寬度
Private Const mintButtonWidth As Byte = 16
' 方格的高度
Private Const mintButtonHeight As Byte = 16

' 現(xiàn)在游戲難度的地雷總數(shù)
Private mbytNumMines As Byte
' 被正確標明為帶有地雷的方格的數(shù)目
Private mbytCorrectHits As Byte
' 已被標明的空格總數(shù)（包括錯誤標記的）
Private mbytTotalHits As Byte

' 現(xiàn)在游戲難度的行數(shù)和列數(shù)
Private mintRows As Integer
Private mintCols As Integer

' 正在被執(zhí)行的行數(shù)和列數(shù)
Private mintRow As Integer
Private mintCol As Integer

' 表明一個新游戲的時間
Public mblnNewGame As Boolean
' 表明一個鼠標點擊動作正在執(zhí)行
Private mblnHitTestBegun As Boolean
' 控制總顯示格數(shù)的變量
Private mfrmDisplay As Form
Private mbytMineStatus() As Byte

' 動態(tài)的2D隊列，用來跟蹤一個方格的現(xiàn)在狀態(tài)
' 是否被標記，或者是否被標記正確
Private mbytMarked() As Byte

' 動態(tài)的2D隊列，用來跟蹤一個含有地雷的方格的行數(shù)和列數(shù)
Private mbytMineLocations() As Byte

Private mcolWrongLocations As New Collection

Public Sub BeginHitTest(intButton As Integer, intX As Single, intY As Single)
    
    ' 如果現(xiàn)在的游戲結(jié)束，開始新的游戲
    ' 當?shù)乩讌^(qū)被點擊
    If mblnNewGame Then
        NewGame
    End If
    
    ' 表明鼠標點擊動作正在執(zhí)行
    mblnHitTestBegun = True
    
    ' 通過鼠標的坐標確定實際方格的坐標
    intX = Int(intX / mintButtonWidth)
    intY = Int(intY / mintButtonHeight)

    ' 如果坐標位于游戲界面外邊，則取消
    If intX >= mintCols Or intY >= mintRows Or intX < 0 Or intY < 0 Then
        Exit Sub
    End If

    ' 通過柵格坐標確定空格坐標
    mintCol = intX * mintButtonWidth
    mintRow = intY * mintButtonHeight

    ' 如果方格已點開，則取消
    If mbytMineStatus(intY, intX) >= BEEN Then Exit Sub

    Dim blnLeftDown As Boolean
    blnLeftDown = (intButton And LEFT_BUTTON) > 0

    ' 如果鼠標左鍵點擊...
    If blnLeftDown Then
        
        ' 如果方格已經(jīng)標記了，不能打開，則取消
        If mbytMarked(intY, intX) >= FLAGGED Then Exit Sub
        
        ' 臨時圖形顯示控制
        If mbytMarked(intY, intX) = QUESTION Then
            mfrmDisplay.imgPressed.Visible = False
            mfrmDisplay.imgQsPressed.Visible = False
            mfrmDisplay.imgQsPressed.Left = mintCol
            mfrmDisplay.imgQsPressed.Top = mintRow
            mfrmDisplay.imgQsPressed.Visible = True
        Else
            mfrmDisplay.imgQsPressed.Visible = False
            mfrmDisplay.imgPressed.Visible = False
            mfrmDisplay.imgPressed.Left = mintCol
            mfrmDisplay.imgPressed.Top = mintRow
            mfrmDisplay.imgPressed.Visible = True
        End If
        
    Else    '如果鼠標右鍵點擊....
        
        Dim Msg As String
        Dim CRLF As String

        CRLF = Chr$(13) & Chr$(10)
        
        Select Case mbytMarked(intY, intX)
    
            Case NONE:      ' 如果所有的空格都被標注...
                            If mbytTotalHits = mbytNumMines Then
                                Msg = "Can't Mark Any More Mines!" & CRLF
                                Msg = Msg & "One or more Mines have been wrongly marked." & CRLF
                                Msg = Msg & "UnMark one or more mines with the right mouse button."
                                    
                                MsgBox Msg, vbCritical, "WinMine: Error!"
                                Exit Sub
                            End If
                                    
                            ' 如果沒有標注，顯示一個標記表示標注
                            mfrmDisplay.PaintPicture mfrmDisplay.imgFlag, mintCol, mintRow
                            ' 增加已被標注的方格數(shù)量
                            mbytTotalHits = mbytTotalHits + 1

                            ' 更新剩余地雷的顯示
                            mfrmDisplay.lblMinesLeft = "Mines Left : " & mbytNumMines - mbytTotalHits
                            
                            ' 如果正確標記
                            If mbytMineStatus(intY, intX) = MINE Then
                                mbytCorrectHits = mbytCorrectHits + 1
                                mbytMarked(intY, intX) = FLAGGED
                            Else    ' 如果錯誤標記
                                Dim objCoords As New clsCoords
                                    
                                ' 在新文件中存儲錯誤標記的坐標
                                objCoords.mintX = intX
                                objCoords.mintY = intY
                                    
                                ' 將它加入到收集
                                mcolWrongLocations.Add objCoords
                                
                                ' 存儲被錯誤標注的方格的總數(shù)
                                mbytMarked(intY, intX) = mbytTotalHits - mbytCorrectHits + 2
                            End If
                                
                            ' 如果所有的地雷都被正確標注...
                            If mbytCorrectHits = mbytNumMines Then
                                Msg = "Congratulations!" & CRLF
                                Msg = Msg & "You have won." & CRLF
                                
                                MsgBox Msg, vbInformation, "WinMine"
                                
                                ' 準備新游戲
                                mblnNewGame = True
                            End If
            
            Case QUESTION:  ' 如果模糊標注，則不標注
                            mbytMarked(intY, intX) = NONE
                            ' 顯示原始方格
                            mfrmDisplay.PaintPicture mfrmDisplay.imgButton, mintCol, mintRow

            Case Else:      ' 如果以前用“紅旗”標注，則更改為空標注
                            ' 顯示用“？”標注的方格
                            mfrmDisplay.PaintPicture mfrmDisplay.imgQuestion, mintCol, mintRow
                            
                            ' 減少已標注方格的總數(shù)
                            mbytTotalHits = mbytTotalHits - 1
                                
                            ' 更新剩余地雷的顯示
                            mfrmDisplay.lblMinesLeft = "Mines Left : " & mbytNumMines - mbytTotalHits
                            
                            ' 如果以前標注的方格含有地雷
                            If mbytMineStatus(intY, intX) = MINE Then
                                ' 同時減少正確標注的方格數(shù)目
                                mbytCorrectHits = mbytCorrectHits - 1
                            Else    ' 如果是錯誤的標注方格
                                ' 取消這個錯誤的坐標
                                mcolWrongLocations.Remove mbytMarked(intY, intX) - 2
                                    
                                Dim intXwm As Integer   ' 錯誤地點的X坐標
                                Dim intYwm As Integer   ' 錯誤地點的Y坐標
                                Dim i As Integer        ' 循環(huán)計算
                                    
                                ' 更新其它錯誤標注的坐標指數(shù)
                                For i = mbytMarked(intY, intX) - 2 To mcolWrongLocations.Count
                                    intXwm = mcolWrongLocations(i).mintX
                                    intYwm = mcolWrongLocations(i).mintY
                                    mbytMarked(intYwm, intXwm) = mbytMarked(intYwm, intXwm) - 1
                                Next
                                    
                            End If

                            mbytMarked(intY, intX) = QUESTION
                
        End Select
    
    End If

End Sub

Public Sub EndHitTest(intButton As Integer, intX As Single, intY As Single)
    
    ' 如果正在執(zhí)行一個鼠標的點擊動作.
    If mblnHitTestBegun Then
        ' 重新設(shè)置標記
        mblnHitTestBegun = False
    Else
        ' 如果不是，則取消
        ' 當鼠標被點擊
        Exit Sub
    End If
    
    Dim blnLeftDown As Boolean
    blnLeftDown = (intButton And LEFT_BUTTON) > 0

    '  如果鼠標左鍵被點擊
    If blnLeftDown Then
        
        '通過鼠標的坐標確定方格的坐標
        intX = Int(intX / mintButtonWidth)
        intY = Int(intY / mintButtonHeight)

        ' 如果坐標位于游戲界面外，則取消
        If intX >= mintCols Or intY >= mintRows Or intX < 0 Or intY < 0 Then
            Exit Sub
        End If

        ' 如果當前點擊的方格已被標注，則取消
        If mbytMarked(intY, intX) >= FLAGGED Then Exit Sub

        ' 通過鼠標坐標確定方格坐標
        intX = mintCol \ mintButtonWidth
        intY = mintRow \ mintButtonHeight
    
        If mbytMarked(intY, intX) = QUESTION Then
            mfrmDisplay.imgQsPressed.Visible = False
        Else
            mfrmDisplay.imgPressed.Visible = False
        End If
        
        Select Case mbytMineStatus(intY, intX)

            Case Is >= BEEN:    ' 如果當前的方格已被打開，則取消
                                Exit Sub
            
            Case NONE:  ' 如果當前的方格是空的，則打開周圍所有的空方格
                        OpenBlanks intX, intY
                        
            Case MINE:  ' 如果當前的空格含有地雷，則引爆地雷
                        Dim intXm As Integer        ' 地雷的X坐標
                        Dim intYm As Integer        ' 地雷的Y坐標
                        Dim vntCoord As Variant     ' 每個循壞使用的變量
                        Dim i As Integer            ' 循環(huán)計數(shù)
                
                        ' 展示所有包含地雷的方格
                        For i = 0 To mbytNumMines - 1
                            
                            intYm = mbytMineLocations(i, 0)
                            intXm = mbytMineLocations(i, 1)

                            If mbytMarked(intYm, intXm) < FLAGGED Then
                                mfrmDisplay.PaintPicture mfrmDisplay.imgMine, intXm * mintButtonWidth, intYm * mintButtonHeight
                            End If
                        
                        Next

                        ' 用一個爆炸的地雷顯示現(xiàn)在的方格
                        mfrmDisplay.PaintPicture mfrmDisplay.imgBlown, mintCol, mintRow
                        
                        ' 顯示所有被錯誤的確定為地雷的方格
                        For Each vntCoord In mcolWrongLocations

                            intYm = vntCoord.mintY
                            intXm = vntCoord.mintX

                            mfrmDisplay.PaintPicture mfrmDisplay.imgWrongMine, intXm * mintButtonWidth, intYm * mintButtonHeight
                        
                        Next
                        
                        ' 準備新游戲
                        mblnNewGame = True