public Movement GetBestMove(char[] board, int boardSize, int CurrentPlayer, int alpha, int beta, GameLogic logic)
{
Movement BestMove = null;
int iPossibleMoves = board.Count(b => b == '-');
Random rand = new Random();
int i = rand.Next(boardSize);
int j = rand.Next(boardSize);
while (iPossibleMoves > 0)
{
do
{
if (i < boardSize - 1)
{
i++;
}
else if (j < boardSize - 1)
{
i = 0; j++;
}
else
{
i = 0; j = 0;
}
}
while (board[FromMatrixToIndex(i, j)] != '-');
Movement NewMove = new Movement(i, j);
iPossibleMoves--;
char[] NewBoard = (new string(board)).ToCharArray();
NewBoard[FromMatrixToIndex(NewMove.iRow, NewMove.iCol)] = 'O';
var result = logic.GetResult(NewBoard);
if (result == GameResult.NotFinished)
{
Movement tempMove = GetBestMove(NewBoard, 3, -CurrentPlayer, alpha, beta, logic);
NewMove.iRank = tempMove.iRank;
}
else
{
if (result == GameResult.NotFinished)
{
NewMove.iRank = 0;
}
else
{
if (result == GameResult.WonByO)
{
NewMove.iRank = -1;
}
else
{
if (result == GameResult.WonByX)
{
NewMove.iRank = 1;
}
}
}
}
if (BestMove == null ||
(CurrentPlayer == 1 && NewMove.iRank < BestMove.iRank) ||
(CurrentPlayer == -1 && NewMove.iRank > BestMove.iRank))
{
BestMove = NewMove;
}
if (CurrentPlayer == 1 && BestMove.iRank < beta)
{
beta = BestMove.iRank;
}
if (CurrentPlayer == -1 && BestMove.iRank > alpha)
{
alpha = BestMove.iRank;
}
if (alpha > beta)
{
iPossibleMoves = 0;
}
}
return BestMove;
}
public bool Move()
{
Movement movement = new Movement();
movement.Move();
if (movement.CursorX == 2 & movement.CursorY == 0)
{
if (this.Board.Board1[0, 0] == ' ')
{
this.Board.Board1[0, 0] = this.Sign;
return(this.IfAdded = true);
}
else
{
return(this.IfAdded = false);
}
}
else if (movement.CursorX == 6 & movement.CursorY == 0)
{
if (this.Board.Board1[0, 1] == ' ')
{
this.Board.Board1[0, 1] = this.Sign;
return(this.IfAdded = true);
}
else
{
return(this.IfAdded = false);
}
}
else if (movement.CursorX == 10 & movement.CursorY == 0)
{
if (this.Board.Board1[0, 2] == ' ')
{
this.Board.Board1[0, 2] = this.Sign;
return(this.IfAdded = true);
}
else
{
return(this.IfAdded = false);
}
}
else if (movement.CursorX == 2 & movement.CursorY == 2)
{
if (this.Board.Board1[1, 0] == ' ')
{
this.Board.Board1[1, 0] = this.Sign;
return(this.IfAdded = true);
}
else
{
return(this.IfAdded = false);
}
}
else if (movement.CursorX == 6 & movement.CursorY == 2)
{
if (this.Board.Board1[1, 1] == ' ')
{
this.Board.Board1[1, 1] = this.Sign;
return(this.IfAdded = true);
}
else
{
return(this.IfAdded = false);
}
}
else if (movement.CursorX == 10 & movement.CursorY == 2)
{
if (this.Board.Board1[1, 2] == ' ')
{
this.Board.Board1[1, 2] = this.Sign;
return(this.IfAdded = true);
}
else
{
return(this.IfAdded = false);
}
}
else if (movement.CursorX == 2 & movement.CursorY == 4)
{
if (this.Board.Board1[2, 0] == ' ')
{
this.Board.Board1[2, 0] = this.Sign;
return(this.IfAdded = true);
}
else
{
return(this.IfAdded = false);
}
}
else if (movement.CursorX == 6 & movement.CursorY == 4)
{
if (this.Board.Board1[2, 1] == ' ')
{
this.Board.Board1[2, 1] = this.Sign;
return(this.IfAdded = true);
}
else
{
return(this.IfAdded = false);
}
}
else if (movement.CursorX == 10 & movement.CursorY == 4)
{
if (this.Board.Board1[2, 2] == ' ')
{
this.Board.Board1[2, 2] = this.Sign;
return(this.IfAdded = true);
}
else
{
return(this.IfAdded = false);
}
}
else
{
return(this.IfAdded = false);
}
}