public Step(Field field)
{
height = field.Height;
width = field.Width;
UsedCells = ImmutableHashSet<Cell>.Empty;
Pieces = field.Pieces;
CurrentPieceCells = Pieces[0].Cells;
Center = GetShift(CurrentPieceCells);
RunningCells = CurrentPieceCells.Select(c => new Cell(c + Center)).ToImmutableHashSet();
pieceIndex = 1 % Pieces.Count;
commandIndex = 0;
points = 0;
}
public Game(string fileName)
{
field = new JsonParser(fileName).Parse();
commands = field.Commands;
}