public static bool IsAnyPieceBetween(Board board, Square from, Square to)
{
//if
var stepX = MoveProperty.SignX(from, to);
var stepY = MoveProperty.SignY(from, to);
var tempFrom = new Square(from.X, from.Y);
while (true)
{
// beware: plus or minus step*
tempFrom = new Square(tempFrom.X - stepX, tempFrom.Y - stepY);
if (tempFrom == to)
{
return(false);
}
if (board[tempFrom].IsNone())
{
continue;
}
return(true);
}
}
// suppose that path from is vertical/horizontal/diagonal line
public static bool CanMoveLine(Board board, Square from, Square to)
{
var stepX = MoveProperty.SignX(from, to);
var stepY = MoveProperty.SignY(from, to);
var tempFrom = new Square(from.X, from.Y);
while (true)
{
tempFrom = new Square(tempFrom.X - stepX, tempFrom.Y - stepY);
if (tempFrom == to)
{
return(true);
}
if (board[tempFrom].IsNone())
{
continue;
}
return(false);
}
}