public void ComputerVsComputer()
{
Random rand = new Random();
int field = rand.Next(1, 10);
RowCol rc = ConvertToField(field);
while (board[rc.Row, rc.Col] != "")
{
field = rand.Next(1, 10);
rc = ConvertToField(field);
}
if (!player1Move)
{
board[rc.Row, rc.Col] = "0";
player1Move = !player1Move;
return;
}
if (player1Move)
{
board[rc.Row, rc.Col] = "X";
player1Move = !player1Move;
return;
}
}
private RowCol WinPossible(string sign) // sign - за кого играет выигрывающий
{
RowCol rc = new RowCol();
if (board[0, 0] == "" && ((board[0, 1] == sign && board[0, 2] == sign) || (board[1, 0] == sign && board[2, 0] == sign) || (board[1, 1] == sign && board[2, 2] == sign)))
{
rc.Row = 0;
rc.Col = 0;
return(rc);
}
if (board[0, 2] == "" && ((board[0, 0] == sign && board[0, 1] == sign) || (board[1, 1] == sign && board[2, 0] == sign) || (board[1, 2] == sign && board[2, 2] == sign)))
{
rc.Row = 0;
rc.Col = 2;
return(rc);
}
if (board[2, 0] == "" && ((board[0, 0] == sign && board[1, 0] == sign) || (board[1, 1] == sign && board[0, 2] == sign) || (board[2, 1] == sign && board[2, 2] == sign)))
{
rc.Row = 2;
rc.Col = 0;
return(rc);
}
if (board[2, 2] == "" && ((board[0, 0] == sign && board[1, 1] == sign) || (board[2, 0] == sign && board[2, 1] == sign) || (board[0, 2] == sign && board[1, 2] == sign)))
{
rc.Row = 2;
rc.Col = 2;
return(rc);
}
if (board[0, 1] == "" && ((board[1, 1] == sign && board[2, 1] == sign) || (board[0, 0] == sign && board[0, 2] == sign)))
{
rc.Row = 0;
rc.Col = 1;
return(rc);
}
if (board[1, 0] == "" && ((board[1, 1] == sign && board[1, 2] == sign) || (board[0, 0] == sign && board[2, 0] == sign)))
{
rc.Row = 1;
rc.Col = 0;
return(rc);
}
if (board[1, 2] == "" && ((board[1, 0] == sign && board[1, 1] == sign) || (board[0, 2] == sign && board[2, 2] == sign)))
{
rc.Row = 1;
rc.Col = 2;
return(rc);
}
if (board[2, 1] == "" && ((board[0, 1] == sign && board[1, 1] == sign) || (board[2, 0] == sign && board[2, 2] == sign)))
{
rc.Row = 2;
rc.Col = 1;
return(rc);
}
rc.Row = -1;
rc.Col = -1;
return(rc);
}
private RowCol ConvertToField(int field)
{
RowCol rc = new RowCol();
if (field == 1)
{
rc.Row = 0;
rc.Col = 0;
}
if (field == 2)
{
rc.Row = 0;
rc.Col = 1;
}
if (field == 3)
{
rc.Row = 0;
rc.Col = 2;
}
if (field == 4)
{
rc.Row = 1;
rc.Col = 0;
}
if (field == 5)
{
rc.Row = 1;
rc.Col = 1;
}
if (field == 6)
{
rc.Row = 1;
rc.Col = 2;
}
if (field == 7)
{
rc.Row = 2;
rc.Col = 0;
}
if (field == 8)
{
rc.Row = 2;
rc.Col = 1;
}
if (field == 9)
{
rc.Row = 2;
rc.Col = 2;
}
return(rc);
}
private RowCol GetComputerMove(string sign)
{
RowCol rc = new RowCol();
// проверка можно ли выиграть
string s;
if (sign == "X")
{
s = "0";
}
else
{
s = "X";
}
rc = WinPossible(s);
if (rc.Row >= 0 && rc.Col >= 0)
{
return(rc);
}
// защита
rc = WinPossible(sign);
if (rc.Row >= 0 && rc.Col >= 0)
{
return(rc);
}
//нападение
if (board[1, 1] == "") //проверка центра
{
rc.Row = 1;
rc.Col = 1;
return(rc);
}
if (board [0, 0] == "")
{
rc.Row = 0;
rc.Col = 0;
return(rc);
}
if (board[0, 2] == "")
{
rc.Row = 0;
rc.Col = 2;
return(rc);
}
if (board[2, 0] == "")
{
rc.Row = 2;
rc.Col = 0;
return(rc);
}
if (board[2, 2] == "")
{
rc.Row = 2;
rc.Col = 2;
return(rc);
}
if (board[0, 1] == "")
{
rc.Row = 0;
rc.Col = 1;
return(rc);
}
if (board[1, 0] == "")
{
rc.Row = 1;
rc.Col = 0;
return(rc);
}
if (board[1, 2] == "")
{
rc.Row = 1;
rc.Col = 2;
return(rc);
}
if (board[2, 1] == "")
{
rc.Row = 2;
rc.Col = 1;
return(rc);
}
return(rc);
}
public string[,] GetUpdatedBoard(int row, int col)
{
if (row < 0 && col < 0)
{
return(board);
}
switch (Mode)
{
case 1: // игрок против компьютера
if (FirstMove == 1) // начинает пользователь
{
if (player1Move)
{
board[row, col] = "X";
}
else
{
board[row, col] = "0";
}
player1Move = !player1Move;
if (!player1Move) //ход компьютера
{
RowCol rc = GetComputerMove("X"); //если начинает пользователь, то комп ходит нулями
GetUpdatedBoard(rc.Row, rc.Col);
}
}
if (FirstMove == 2) //начинает комп
{
if (!player1Move)
{
board[row, col] = "0";
}
else
{
board[row, col] = "X";
}
player1Move = !player1Move;
if (player1Move)
{
RowCol rc = GetComputerMove("0"); //если начинает пользователь, то комп ходит нулями
GetUpdatedBoard(rc.Row, rc.Col);
}
}
break;
case 2: // игрок против игрока
{
if (player1Move)
{
board[row, col] = "X";
}
else
{
board[row, col] = "0";
} //изменение клетки
player1Move = !player1Move;
break;
}
}
return(board);
}
