//считает количество фигур на поле
private static void NumberPiece(IBoard board, out int whiteKings, out int blackKings, out int whiteMen, out int blackMen)
{
whiteKings = 0;
blackKings = 0;
whiteMen = 0;
blackMen = 0;
for (int pos = 1; pos <= BoardConstants.LightSquareCount; pos++)
{
Piece piece = board[pos];
if (BoardUtilities.IsPiece(piece))
{
switch (piece)
{
case Piece.BlackMan:
blackMen++;
break;
case Piece.WhiteMan:
whiteMen++;
break;
case Piece.BlackKing:
blackKings++;
break;
case Piece.WhiteKing:
whiteKings++;
break;
}
}
}
}
/// <summary>
/// CanJump - Может прыгать
/// Check the player jump any pieces on the board
/// Проверьте игрока, прыгайте любые фигуры на доске
/// </summary>
/// <param name="board">
/// the board state
/// состояние правления
/// </param>
/// <param name="player">
/// the player with the turn
/// игрок с терном
/// </param>
/// <returns><code>true</code>
/// if the player can make a jump
/// если игрок может сделать прыжок
/// </returns>
static bool CanJump(IBoard board, Player player)
{
for (int row = 0; row < board.Rows; row++)
{
for (int col = 0; col < board.Cols; col++)
{
if (BoardUtilities.IsPiece(board[row, col]) &&
(BoardUtilities.GetPlayer(board[row, col]) == player) &&
CanJump(board, row, col)
)
{
return(true);
}
}
}
return(false);
}
/// <summary>
/// CanJump - Может прыгать
/// Check if piece at position can jump
/// Проверьте, может ли кусок в положении прыгать
/// </summary>
/// <param name="board">
/// the board state
/// состояние правления
/// </param>
/// <param name="row">
/// the row the piece is on
/// строка, на которой стоит произведение
/// </param>
/// <param name="col">
/// the column the piece is on
/// колонка, на которой находится произведение
/// </param>
/// <returns><code>true</code>
/// if the piece can jump
/// если кусок может прыгать
/// </returns>
static bool CanJump(IBoard board, int row, int col)
{
Piece piece = board[row, col];
if (!BoardUtilities.IsPiece(piece))
{
return(false);
}
int forwardDirection = (BoardUtilities.IsBlack(piece)) ? 1 : -1;
int backwardDirection = (!BoardUtilities.IsKing(piece)) ? 0 : (BoardUtilities.IsBlack(piece)) ? -1 : 1;
return(CanJump(board, row, col, forwardDirection, -1) ||
CanJump(board, row, col, forwardDirection, 1) ||
(backwardDirection != 0 &&
(
CanJump(board, row, col, backwardDirection, -1) ||
CanJump(board, row, col, backwardDirection, 1)
)
));
}
/// <summary>
/// HasMovesAvailable - Есть фильмы в наличии
/// Check if the player has any more moves
/// Проверьте, есть ли у игрока больше ходов
/// </summary>
/// <param name="board">
/// the state of the board
/// состояние правления
/// </param>
/// <param name="player">
/// the player with the turn
/// игрок с терном
/// </param>
/// <returns><code>true</code>
/// if the player can make a move
/// если игрок может сделать ход
/// </returns>
public static bool HasMovesAvailable(IBoard board, Player player)
{
for (int row = 0; row < board.Rows; row++)
{
for (int col = 0; col < board.Cols; col++)
{
if (BoardUtilities.IsPiece(board[row, col]) && (player == BoardUtilities.GetPlayer(board[row, col])))
{
if (CanWalk(board, row, col))
{
return(true);
}
else if (CanJump(board, row, col))
{
return(true);
}
}
}
}
return(false);
}
private static int Evaluate(IBoard board, Player player)
{
const int MAN_WEIGHT = 100;
const int KING_WEIGHT = 130;
const int BACKRANK_WEIGHT = 10;
int score = 0;
int whiteKings = 0, blackKings = 0, whiteMen = 0, blackMen = 0;
for (int pos = 1; pos < BoardConstants.LightSquareCount; pos++)
{
Piece piece = board[pos];
if (BoardUtilities.IsPiece(piece))
{
switch (piece)
{
case Piece.BlackMan:
blackMen++;
break;
case Piece.WhiteMan:
whiteMen++;
break;
case Piece.BlackKing:
blackKings++;
break;
case Piece.WhiteKing:
whiteKings++;
break;
}
}
}
if (blackMen + blackKings == 0)
{
whiteKings += 100;;
}
else if (whiteMen + whiteKings == 0)
{
blackKings += 100;
}
if (board[31] == Piece.WhiteMan && board[30] == Piece.WhiteMan && blackMen > 1)
{
score -= BACKRANK_WEIGHT;
}
if (board[1] == Piece.BlackMan && board[3] == Piece.BlackMan && whiteMen > 1)
{
score += BACKRANK_WEIGHT;
}
int blackPieceScore = blackKings * KING_WEIGHT + blackMen * MAN_WEIGHT;
int whitePieceScore = whiteKings * KING_WEIGHT + whiteMen * MAN_WEIGHT;
score += ((blackPieceScore - whitePieceScore) * 200) / (blackPieceScore + whitePieceScore);
score += blackPieceScore - whitePieceScore;
//int blackPieceScore = blackKings * 4 + blackMen * 1;
//int whitePieceScore = whiteKings * 4 + whiteMen * 1;
//score = blackPieceScore - whitePieceScore;
const int RANDOMIZER_MIN = -10;
const int RANDOMIZER_MAX = 10;
return(((player == Player.Black) ? score : -score) + random.Next(RANDOMIZER_MIN, RANDOMIZER_MAX));
}
private void Paint(Graphics g, IBoard board, int squareSize, FloatingPiece floatingPiece, bool paintBoard, bool paintPiece)
{
int x = 0;
int y = 0;
int imageSize = squareSize - imageInset * 2;
int position = BoardConstants.LightSquareCount;
for (int row = 0; row < BoardConstants.Rows; row++)
{
x = 0;
for (int col = 0; col < BoardConstants.Rows; col++)
{
bool isDarkSquare = (row % 2 != col % 2);
//
// Draw square
//
if (paintBoard)
{
g.DrawImage(GetSquareImage(isDarkSquare), x, y, squareSize, squareSize);
}
if (isDarkSquare)
{
//
// Draw square number
//
if (paintBoard)
{
g.DrawString(position.ToString(CultureInfo.CurrentCulture), positionFont, positionBrush, x, y);
}
//
// Draw piece on square
//
if (paintPiece)
{
Piece piece = board[position];
if ((piece != Piece.None) && (floatingPiece.Position != position))
{
g.DrawImage(GetPieceImage(piece), x + imageInset, y + imageInset, imageSize, imageSize);
}
}
position--;
}
x += squareSize;
}
y += squareSize;
}
//
// draw floating piece
//
if (paintPiece)
{
if ((floatingPiece.Active) && (BoardUtilities.IsPiece(board[floatingPiece.Position])))
{
int floatingPieceSize = (int)(imageSize * 1.2);
const int shadowOffset = 6;
Image floatingPieceImage = GetPieceImage(board[floatingPiece.Position]);
g.FillEllipse(shadowBrush, floatingPiece.X + shadowOffset, floatingPiece.Y + shadowOffset, floatingPieceSize, floatingPieceSize);
g.DrawImage(floatingPieceImage, floatingPiece.X + imageInset, floatingPiece.Y + imageInset, floatingPieceSize, floatingPieceSize);
}
}
}