private void Tile_Click(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
if (game.SelectedChecker == null)
{
string cords = (sender as PictureBox).Tag.ToString();
int row = Convert.ToInt32(cords[0].ToString());
int column = Convert.ToInt32(cords[1].ToString());
game.SelectedChecker = game.Board.Tiles[row, column].Checker;
UpdateView();
ShowVariants(game.SelectedChecker);
}
else
{
string cords = (sender as PictureBox).Tag.ToString();
int row = Convert.ToInt32(cords[0].ToString());
int column = Convert.ToInt32(cords[1].ToString());
game.Move(game.SelectedChecker, row, column);
UpdateView();
ShowVariants(game.SelectedChecker);
game.SelectedChecker = null;
}
}
}
public static MoveResult NextBestMove(Game game, Tile color, Position position, int depth)
{
if (depth == 0)
{
return(null);
}
Move bestMove = null;
var bestResult = int.MinValue;
var moves = Helper.CalculateMoves(game, position);
moves = RandomizeMoves(moves);
foreach (var move in moves)
{
var newGame = game.Move(move);
var nextBestMoveOther = NextBestMove(newGame, Helper.ChangeColor(color), depth - 1);
newGame = newGame.Move(nextBestMoveOther);
var nextBestMove = NextBestMove(newGame, color, depth - 1);
newGame = newGame.Move(nextBestMove);
var result = Score(newGame, color);
if (result > bestResult)
{
bestMove = move;
bestResult = result;
}
}
return(new MoveResult(bestMove, bestResult));
}
public void PoleClick(object sender, MouseButtonEventArgs e)
{
Hra.Move((Rectangle)sender);
}
static bool CanMoveQueen(Game board, Position position, out List <Move> moves)
{
moves = new List <Move>();
var tile = board.GetTile(position);
if (tile != Tile.QueenBlack && tile != Tile.QueenWhite)
{
return(true);
}
var moveDirections = new[] {
Tuple.Create(1, 1),
Tuple.Create(1, -1),
Tuple.Create(-1, -1),
Tuple.Create(-1, 1)
};
foreach (var direction in moveDirections)
{
var rowDirection = direction.Item1;
var columnDirection = direction.Item2;
var steps = 1;
while (true)
{
bool pieceInsideTheBoard = Position.Try(position.Row + steps * rowDirection, position.Column + steps * columnDirection, out Position toMovePosition);
if (pieceInsideTheBoard && board.GetTile(toMovePosition) == Tile.Empty)
{
moves.Add(new Move
{
From = position,
To = toMovePosition
});
}
else if (
pieceInsideTheBoard &&
EnemyTile(tile, board.GetTile(toMovePosition)) &&
Position.Try(position.Row + (steps + 1) * rowDirection, position.Column + (steps + 1) * columnDirection, out Position toMoveAfterEat) &&
board.GetTile(toMoveAfterEat) == Tile.Empty
)
{
var eatMove = new Eat
{
From = position,
To = toMoveAfterEat,
Eaten = new List <Position>()
{
toMovePosition
}
};
var gameAfterMove = board.Move(eatMove);
if (CanMoveQueen(gameAfterMove, toMoveAfterEat, out List <Move> newMoves))
{
var eatMoves = newMoves.OfType <Eat>().Select(x => {
eatMove.Eaten.AddRange(from ne in x.Eaten
where !eatMove.Eaten.Any(bl => bl.Number == ne.Number)
select ne);
eatMove.To = x.To;
return(eatMove);
});
if (eatMoves.Any())
{
moves.AddRange(eatMoves);
}
else
{
moves.Add(eatMove);
}
}
break;
}
else
{
break;
}
steps++;
}
}
return(true);
}
static List <Eat> CanPieceEat(Game board, Position position)
{
var moves = new List <Eat>();
var tile = board.GetTile(position);
if (tile == Tile.Empty)
{
return(moves);
}
var moveDirections = new[] {
Tuple.Create(1, 1),
Tuple.Create(1, -1),
Tuple.Create(-1, -1),
Tuple.Create(-1, 1)
};
foreach (var direction in moveDirections)
{
var rowDirection = direction.Item1;
var columnDirection = direction.Item2;
bool pieceInsideTheBoard = Position.Try(position.Row + rowDirection, position.Column + columnDirection, out Position toEatPosition);
bool isAEnemyTile = pieceInsideTheBoard && EnemyTile(board.GetTile(toEatPosition), tile);
bool positionIsValidAfterMove = Position.IsCoordValid(position.Row + (rowDirection * 2), position.Column + (columnDirection * 2));
bool thePositionAfterMoveIsEmpty = positionIsValidAfterMove && board.GetTile(Position.FromCoors(position.Row + (rowDirection * 2), position.Column + (columnDirection * 2))) == Tile.Empty;
if (pieceInsideTheBoard &&
isAEnemyTile &&
positionIsValidAfterMove &&
thePositionAfterMoveIsEmpty)
{
var to = Position.FromCoors(position.Row + (rowDirection * 2), position.Column + (columnDirection * 2));
var from = position;
var eatMove = new Eat
{
Eaten = new List <Position> {
toEatPosition
},
From = from,
To = to
};
var newBoard = board.Move(eatMove);
var eatMoves = CanPieceEat(newBoard, to);
if (eatMoves.Any())
{
moves.AddRange(eatMoves.Select(m =>
{
var list = new List <Position>()
{
toEatPosition
};
list.AddRange(m.Eaten);
return(new Eat
{
From = from,
To = m.To,
Eaten = list
});
}));
}
else
{
moves.Add(eatMove);
}
}
}
return(moves);
}
