private static Lines GetConsecutiveLines(OmokBoard b, PieceColor color, Point move)
{
int horizontal = 1, vertical = 1, mainDiagonal = 1, antiDiagonal = 1;
int nextX, nextY;
for (nextX = move.X + 1, nextY = move.Y; nextX < OmokBoard.COLUMNS && b.GetPiece(nextY, nextX) == color; nextX++)
horizontal++;
for (nextX = move.X - 1; nextX >= 0 && b.GetPiece(nextY, nextX) == color; nextX--)
horizontal++;
for (nextX = move.X, nextY = move.Y + 1; nextY < OmokBoard.ROWS && b.GetPiece(nextY, nextX) == color; nextY++)
vertical++;
for (nextX = move.X, nextY = move.Y - 1; nextY >= 0 && b.GetPiece(nextY, nextX) == color; nextY--)
vertical++;
for (nextX = move.X + 1, nextY = move.Y + 1; nextX < OmokBoard.COLUMNS && nextY < OmokBoard.ROWS && b.GetPiece(nextY, nextX) == color; nextX++, nextY++)
mainDiagonal++;
for (nextX = move.X - 1, nextY = move.Y - 1; nextX >= 0 && nextY >= 0 && b.GetPiece(nextY, nextX) == color; nextX--, nextY--)
mainDiagonal++;
for (nextX = move.X + 1, nextY = move.Y - 1; nextX < OmokBoard.COLUMNS && nextY >= 0 && b.GetPiece(nextY, nextX) == color; nextX++, nextY--)
antiDiagonal++;
for (nextX = move.X - 1, nextY = move.Y + 1; nextX >= 0 && nextY < OmokBoard.ROWS && b.GetPiece(nextY, nextX) == color; nextX--, nextY++)
antiDiagonal++;
return new Lines(horizontal, vertical, mainDiagonal, antiDiagonal);
}
internal static MoveResult CanMove(OmokBoard b, Player p, Point move)
{
Lines sucessive = GetConsecutiveLines(b, p.Color, move);
if (sucessive.horizontal > 5 || sucessive.vertical > 5 || sucessive.mainDiagonal > 5 || sucessive.antiDiagonal > 5)
return MoveResult.OVERLINE;
if (sucessive.horizontal == 3 && (sucessive.vertical == 3 || sucessive.mainDiagonal == 3 || sucessive.antiDiagonal == 3)
|| sucessive.vertical == 3 && (sucessive.mainDiagonal == 3 || sucessive.antiDiagonal == 3)
|| sucessive.mainDiagonal == 3 && sucessive.antiDiagonal == 3)
return MoveResult.DOUBLE_THREES;
return MoveResult.NORMAL;
}
internal static MoveResult CurrentStatus(OmokBoard b, Player p, Point move)
{
Lines sucessive = GetConsecutiveLines(b, p.Color, move);
if (sucessive.horizontal == 5 || sucessive.vertical == 5 || sucessive.mainDiagonal == 5 || sucessive.antiDiagonal == 5)
return MoveResult.FIVE_IN_A_ROW;
for (int i = 0; i < OmokBoard.ROWS; i++)
for (int j = 0; j < OmokBoard.COLUMNS; j++)
if (b.GetPiece(i, j) == PieceColor.EMPTY)
return MoveResult.NORMAL;
return MoveResult.BOARD_FILLED;
}
internal OmokPacketHandler(NetworkPlayer p, OmokBoard board)
{
this.player = p;
this.board = board;
}
internal void Select(OmokBoard board, int row, int col)
{
if (board.GetPiece(row, col) == PieceColor.EMPTY)
{
MoveResult allowed = GameLogic.CanMove(board, this, new Point(col, row));
switch (allowed)
{
case MoveResult.NORMAL:
board.DrawPiece(row, col, color);
MadeMove(row, col);
board.NextTurn(new Point(col, row));
break;
case MoveResult.OVERLINE:
MessageBox.Show(board, "You may not place a piece there\nsince it will cause you to have\nmore than five pieces in a row.", "Illegal Move", MessageBoxButtons.OK, MessageBoxIcon.Information);
break;
case MoveResult.DOUBLE_THREES:
MessageBox.Show(board, "You may not place a piece there\nsince it will cause you to have\ntwo lines of three or more\nconsecutive pieces.", "Illegal Move", MessageBoxButtons.OK, MessageBoxIcon.Information);
break;
}
}
}
