vb.net做的俄罗斯方块

Vb写的俄罗斯方块 基本功能全'声明一个整数常量Width,表示游戏界面横向的小正方形数目,初始化为16 Public Const Width As Integer = 16 '声明一个整数常量Height,表示游戏界面横向的小正方形数目,初始化为30 Public Const Height As Integer = 30 '游戏界面的背景色 Public Shared BackColor As Color '小正方形的大小 Public Shared SquareSize As Size = New Size(10, 10) Public Shared g As Graphics '声明一个Graphics变量,用于绘制下一个方块 Public Shared gNext As Graphics '声明一个数组,用于表示游戏界面上的所有小正方形 Private Shared ArrGameField(Width - 1, Height - 1) As CSquare '函数功能:判断ArrGameField(x, y)是否有正方形,有则返回False,无则返回True Public Shared Function IsEmpty(ByVal x As Integer, ByVal y As Integer) As Boolean If x >= 0 And x = 0 And y =0 '在循环体中,先判断第y行是否是满的,是的话result增1,并把第y行上的所有小正方形下降一行.最后y递减1 '如果实现把第y行的所有小正方形下降一行:从第y行扫描至第0行,每扫描一行,把上一行的每个小正方形赋值给该行,并修改每一个小正方形的Location属性的值 While Y >= 0 If IsLineFull(Y) Then result += 1 For i As Integer = Y To 0 Step -1 If i > 0 Then For x As Integer = 0 To Width - 1 ArrGameField(x, i) = ArrGameField(x, i - 1) If Not ArrGameField(x, i) Is Nothing Then ArrGameField(x, i).Location = New Point(ArrGameField(x, i).Location.X, ArrGameField(x, i).Location.Y + SquareSize.Height) End If Next Else For x As Integer = 0 To Width - 1 ArrGameField(x, i) = Nothing Next End If Next Else