public override List <FigMove> GetPossibleMoves(Desk desk)
{
var list = new List <FigMove>();
TryToAddMove(desk, list, -1, 1);
TryToAddMove(desk, list, 0, 1);
TryToAddMove(desk, list, 1, 1);
TryToAddMove(desk, list, 1, 0);
TryToAddMove(desk, list, 1, -1);
TryToAddMove(desk, list, 0, -1);
TryToAddMove(desk, list, -1, -1);
TryToAddMove(desk, list, -1, 0);
if (!IsMoved)
{
Position.FromTextToInt(FigPosition.GetPos(), out var x, out var y);
if (x != 4)
{
return(list);
}
if (IsAtacked(desk))
{
return(list);
}
if (desk.FieldOfFigures[7, y] is Rook rrook && !rrook.IsMoved)
{
if (desk.FieldOfFigures[x + 2, y] == null && !IsMoveOpensKing(desk, 2, 0))
{
if (desk.FieldOfFigures[x + 1, y] == null && !IsMoveOpensKing(desk, 1, 0))
{
list.Add(new FigMove(this, new Position(x + 2, y), false, CastlingTypes.ToRight));
}
}
}
if (desk.FieldOfFigures[0, y] is Rook lrook && !lrook.IsMoved)
{
if (desk.FieldOfFigures[x - 1, y] == null && !IsMoveOpensKing(desk, -1, 0))
{
if (desk.FieldOfFigures[x - 2, y] == null && !IsMoveOpensKing(desk, -2, 0))
{
if (desk.FieldOfFigures[x - 3, y] == null && !IsMoveOpensKing(desk, -3, 0))
{
list.Add(new FigMove(this, new Position(x - 3, y), false, CastlingTypes.ToLeft));
}
}
}
}
}
return(list);
}
public new bool IsAtacked(Desk desk)
{
Position.FromTextToInt(FigPosition.GetPos(), out var x, out var y);
bool isUp = false, isDown = false, isRight = false, isLeft = false,
isUpRight = false, isUpLeft = false, isDownRight = false, isDownLeft = false;
// sometimes works
for (var i = 1; i < 8; i++)
{
if (!isUp && y + i < 8 && desk.FieldOfFigures[x, y + i] != null)
{
isUp = true;
var fig = desk.FieldOfFigures[x, y + i];
if (fig.FigureSide != FigureSide &&
(fig.FigureType == FigureType.Rook || fig.FigureType == FigureType.Queen))
{
return(true);
}
}
if (!isDown && y - i > -1 && desk.FieldOfFigures[x, y - i] != null)
{
isDown = true;
var fig = desk.FieldOfFigures[x, y - i];
if (fig.FigureSide != FigureSide &&
(fig.FigureType == FigureType.Rook || fig.FigureType == FigureType.Queen))
{
return(true);
}
}
if (!isRight && x + i < 8 && desk.FieldOfFigures[x + i, y] != null)
{
isRight = true;
var fig = desk.FieldOfFigures[x + i, y];
if (fig.FigureSide != FigureSide &&
(fig.FigureType == FigureType.Rook || fig.FigureType == FigureType.Queen))
{
return(true);
}
}
if (!isLeft && x - i > -1 && desk.FieldOfFigures[x - i, y] != null)
{
isLeft = true;
var fig = desk.FieldOfFigures[x - i, y];
if (fig.FigureSide != FigureSide &&
(fig.FigureType == FigureType.Rook || fig.FigureType == FigureType.Queen))
{
return(true);
}
}
if (x + i < 8)
{
if (y + i < 8 && !isUpRight)
{
var fig = desk.FieldOfFigures[x + i, y + i];
if (fig != null)
{
isUpRight = true;
if (i == 1 && fig.FigureSide != FigureSide &&
fig.FigureType == FigureType.Pawn)
{
return(true);
}
if (fig.FigureSide != FigureSide &&
(fig.FigureType == FigureType.Bishop || fig.FigureType == FigureType.Queen))
{
return(true);
}
}
}
if (y - i > -1 && !isDownRight)
{
var fig = desk.FieldOfFigures[x + i, y - i];
if (fig != null)
{
isDownRight = true;
if (fig.FigureSide != FigureSide &&
(fig.FigureType == FigureType.Bishop || fig.FigureType == FigureType.Queen))
{
return(true);
}
}
}
}
if (x - i > -1)
{
if (y + i < 8 && !isUpLeft)
{
var fig = desk.FieldOfFigures[x - i, y + i];
if (fig != null)
{
isUpLeft = true;
if (i == 1 && fig.FigureSide != FigureSide && fig.FigureType == FigureType.Pawn)
{
return(true);
}
if (fig.FigureSide != FigureSide &&
(fig.FigureType == FigureType.Bishop || fig.FigureType == FigureType.Queen))
{
return(true);
}
}
}
if (y - i > -1 && !isDownLeft)
{
var fig = desk.FieldOfFigures[x - i, y - i];
if (fig != null)
{
isDownLeft = true;
if (fig.FigureSide != FigureSide &&
(fig.FigureType == FigureType.Bishop || fig.FigureType == FigureType.Queen))
{
return(true);
}
}
}
}
}
// Now check for horses and pawns
if (x < 8 - 1 && y < 8 - 2)
{
var fig = desk.FieldOfFigures[x + 1, y + 2];
if (fig != null && fig.FigureSide != FigureSide && fig.FigureType == FigureType.Horse)
{
return(true);
}
}
if (x < 8 - 2 && y < 8 - 1)
{
var fig = desk.FieldOfFigures[x + 2, y + 1];
if (fig != null && fig.FigureSide != FigureSide && fig.FigureType == FigureType.Horse)
{
return(true);
}
}
if (x > 0 && y > 1)
{
var fig = desk.FieldOfFigures[x - 1, y - 2];
if (fig != null && fig.FigureSide != FigureSide && fig.FigureType == FigureType.Horse)
{
return(true);
}
}
if (x > 1 && y > 0)
{
var fig = desk.FieldOfFigures[x - 2, y - 1];
if (fig != null && fig.FigureSide != FigureSide && fig.FigureType == FigureType.Horse)
{
return(true);
}
}
if (x > 0 && y < 8 - 2)
{
var fig = desk.FieldOfFigures[x - 1, y + 2];
if (fig != null && fig.FigureSide != FigureSide && fig.FigureType == FigureType.Horse)
{
return(true);
}
}
if (x > 1 && y < 8 - 1)
{
var fig = desk.FieldOfFigures[x - 2, y + 1];
if (fig != null && fig.FigureSide != FigureSide && fig.FigureType == FigureType.Horse)
{
return(true);
}
}
if (x < 8 - 1 && y > 1)
{
var fig = desk.FieldOfFigures[x + 1, y - 2];
if (fig != null && fig.FigureSide != FigureSide && fig.FigureType == FigureType.Horse)
{
return(true);
}
}
if (x < 8 - 2 && y > 0)
{
var fig = desk.FieldOfFigures[x + 2, y - 1];
if (fig != null && fig.FigureSide != FigureSide && fig.FigureType == FigureType.Horse)
{
return(true);
}
}
return(false);
}
