public Yacheika Open(int x, int y)
{
//Запрос элемента для ячейки, если пустая ячейка отсутствует, и мы не должны возвращать
Yacheika yacheika = Parent.GetCell(X + x, Y + y);
return(yacheika ?? null);
}
// Перемещаем фигуру из одной ячейки в другую, после того как эта функция будет вызвана
public void Move(Yacheika from, Yacheika to, PromoteOptions promoteOption)
{
if (to.Piece != null)
{
pieces.Remove(to.Piece);
}
to.Piece = from.Piece;
from.Piece = null;
if (to == EnPassant && to.Piece is Peshka)
{
pieces.Remove(EnPassantCapture.Piece);
EnPassantCapture.Piece = null;
}
if (to.Piece is Korol && to.X - from.X == 2) // Рокировка вправо
{
Move(GetCell(7, to.Y), GetCell(to.X - 1, to.Y), promoteOption); // Перемещаем ладью
}
if (to.Piece is Korol && to.X - from.X == -2) // Рокировка влево
{
Move(GetCell(0, to.Y), GetCell(to.X + 1, to.Y), promoteOption); // Перемещаем ладью
}
if (to.Piece is Peshka && to.Y == (to.Piece.Color == PlayerColor.White ? 7 : 0))
{
Piece promoted = null;
switch (promoteOption)
{
case PromoteOptions.Queen:
promoted = new Dama(to.Piece);
break;
case PromoteOptions.Rook:
promoted = new Ladiya(to.Piece);
break;
case PromoteOptions.Bishop:
promoted = new Slon(to.Piece);
break;
case PromoteOptions.Knight:
promoted = new Kon(to.Piece);
break;
}
//Обновляем список
pieces.Remove(to.Piece);
to.Piece = promoted;
promoted.OnPlace(to);
pieces.Add(promoted);
}
// Пересчитаем возможные ходы
to.Piece.OnMove(to);
to.Piece.Recalculate();
EnPassant = null;
EnPassantCapture = null;
if (to.Piece is Peshka && Math.Abs(to.Y - from.Y) == 2)
{
EnPassant = GetCell(to.X, (from.Y > to.Y) ? from.Y - 1 : from.Y + 1);
EnPassantCapture = to;
}
}
public void Reset()//Сбрoc
{
cells = new Yacheika[8, 8];
for (int i = 0; i < 8; i++)
{
for (int j = 0; j < 8; j++)
{
cells[i, j] = new Yacheika(this, i, j);
}
}
pieces.Clear();
EnPassant = null;
EnPassantCapture = null;
addPiece(cells[0, 0], new Ladiya(PlayerColor.White));
addPiece(cells[1, 0], new Kon(PlayerColor.White));
addPiece(cells[2, 0], new Slon(PlayerColor.White));
addPiece(cells[3, 0], new Dama(PlayerColor.White));
addPiece(cells[4, 0], (whiteKing = new Korol(PlayerColor.White)));
addPiece(cells[5, 0], new Slon(PlayerColor.White));
addPiece(cells[6, 0], new Kon(PlayerColor.White));
addPiece(cells[7, 0], new Ladiya(PlayerColor.White));
addPiece(cells[0, 1], new Peshka(PlayerColor.White));
addPiece(cells[1, 1], new Peshka(PlayerColor.White));
addPiece(cells[2, 1], new Peshka(PlayerColor.White));
addPiece(cells[3, 1], new Peshka(PlayerColor.White));
addPiece(cells[4, 1], new Peshka(PlayerColor.White));
addPiece(cells[5, 1], new Peshka(PlayerColor.White));
addPiece(cells[6, 1], new Peshka(PlayerColor.White));
addPiece(cells[7, 1], new Peshka(PlayerColor.White));
addPiece(cells[0, 6], new Peshka(PlayerColor.Black));
addPiece(cells[1, 6], new Peshka(PlayerColor.Black));
addPiece(cells[2, 6], new Peshka(PlayerColor.Black));
addPiece(cells[3, 6], new Peshka(PlayerColor.Black));
addPiece(cells[4, 6], new Peshka(PlayerColor.Black));
addPiece(cells[5, 6], new Peshka(PlayerColor.Black));
addPiece(cells[6, 6], new Peshka(PlayerColor.Black));
addPiece(cells[7, 6], new Peshka(PlayerColor.Black));
addPiece(cells[0, 7], new Ladiya(PlayerColor.Black));
addPiece(cells[1, 7], new Kon(PlayerColor.Black));
addPiece(cells[2, 7], new Slon(PlayerColor.Black));
addPiece(cells[3, 7], new Dama(PlayerColor.Black));
addPiece(cells[4, 7], (blackKing = new Korol(PlayerColor.Black)));
addPiece(cells[5, 7], new Slon(PlayerColor.Black));
addPiece(cells[6, 7], new Kon(PlayerColor.Black));
addPiece(cells[7, 7], new Ladiya(PlayerColor.Black));
foreach (Piece piece in pieces)
{
piece.Recalculate();
}
}
public IEnumerable <Yacheika> OpenLineOfSight(int dirX, int dirY, int desiredCount = 1)
{
for (int i = 1; i <= desiredCount; i++)
{
//Запрос элемента для ячейки, если пустая ячейка отсутствует, и мы должны остановиться
Yacheika yacheika = Parent.GetCell(X + dirX * i, Y + dirY * i);
if (yacheika == null)
{
yield break;
}
yield return(yacheika);
//Остановиться в любом случае, так как линия заблокирована
if (yacheika.Piece != null)
{
yield break;
}
}
}
private void addPiece(Yacheika yacheika, Piece piece)// Добавляет фигуру в начале игры
{
yacheika.Piece = piece;
pieces.Add(piece);
piece.OnPlace(yacheika);
}
/// Продвигается ли фигура ?
public bool IsPromotable(Yacheika from, Yacheika to)
{
return(from.Piece is Peshka && to.Y == (from.Piece.Color == PlayerColor.White ? 7 : 0));
}
private bool isMoveLegal(Piece piece, Yacheika move)//Подтверждает, если ход является доступным для данной фигуры
{
Piece currentKing = piece.Color == PlayerColor.White ? whiteKing : blackKing;
if (piece is Korol)
{
foreach (Piece hitter in move.HitBy)
{
if (hitter.Parent != move && hitter.Color != piece.Color)
{
return(false);
}
}
// Подтвердить рокировку
if (Math.Abs(move.X - piece.Parent.X) == 2)
{
if (inCheck)
{
return(false);
}
foreach (Piece hitter in GetCell(move.X > piece.Parent.X ? move.X - 1 : move.X + 1, move.Y).HitBy)
{
if (hitter.Color != piece.Color)
{
return(false);
}
}
}
}
else // Некороль
{
if (inCheck)
{
foreach (Piece hitter in currentKing.Parent.HitBy)
{
if (hitter.Color == currentKing.Color)
{
continue;
}
if (hitter.Parent == move)
{
continue;
}
if (hitter.IsBlockedIfMove(piece.Parent, move, currentKing.Parent))
{
continue;
}
return(false);
}
}
foreach (Piece hitter in piece.Parent.HitBy)
{
if (hitter.Color == currentKing.Color)
{
continue;
}
if (hitter.Parent == move)
{
continue;
}
if (!hitter.IsBlockedIfMove(piece.Parent, move, currentKing.Parent))
{
return(false);
}
}
}
return(true);
}
