public override int IsCanMove(int y, int x)
{
if (!this.IsValidData(y, x))
{
return(0);
}
int multiple = 1;
if (this.color == Colors.BLACK)
{
multiple = -1;
}
if (board.GetFigure(y, x) == null)
{
if (x == this.x && y == (this.y + 1 * multiple))
{
return(1);
}
if (x == this.x && y == (this.y + 2 * multiple) && board.GetFigure(y - 1 * multiple, x) == null && this.IsFirstStep)
{
return(2);
}
}
if ((x == this.x + 1 || x == this.x - 1) && y == this.y + 1 * multiple)
{
Figure figure = this.board.GetFigure(y, x);
if (figure != null && figure.GetColor() != this.color)
{
return(3);
}
else
{
figure = this.board.GetFigure(y - 1 * multiple, x);
if (figure != null && figure.GetColor() != this.color && figure.GetType() == typeof(Pawn) && (figure as Pawn).IsAfterFirstStep && (figure as Pawn).FirstStep == board.GetCountSteps() - 1)
{
return(4);
}
}
}
return(0);
}
public void RemoveFigure(Figure figure)
{
if (figure != null)
{
if (figure.GetColor() == Colors.BLACK)
{
this.black_figures.Remove(figure);
}
else
{
this.white_figures.Remove(figure);
}
}
}
public bool IsCheck(Figure fig, int y, int x)
{
Figure temp = GetFigure(y, x);
int tempy = fig.GetY();
int tempx = fig.GetX();
Move(fig, y, x);
if (fig.GetColor() == Colors.BLACK && IsUnderAttack(this.black_king.GetY(), this.black_king.GetX(), Colors.BLACK) > 0 || (fig.GetColor() == Colors.WHITE && IsUnderAttack(this.white_king.GetY(), this.white_king.GetX(), Colors.WHITE) > 0))
{
Move(fig, tempy, tempx);
AddFigure(temp);
return(true);
}
Move(fig, tempy, tempx);
AddFigure(temp);
return(false);
}