public MoveResult ProcessAMove(string move, Player currentPlayer)
{
try
{
var cells = move.Trim().Split(' ');
if (cells.Length != 2)
{
throw new IndexOutOfRangeException();
}
//Parse and Validate starting cell
var(x, y) = ParseCellNum(cells[0]);
From = MainBoard.GetCell(x, y);
if (From != null && !From.IsOccupied())
{
return(MoveResult.EmptyBeginningCell);
}
if (From != null && From.IsOccupied() && !From.Piece.IsSameSide(currentPlayer))
{
return(MoveResult.WrongBeginningCell);
}
//Parse and Validate destination cell
(x, y) = ParseCellNum(cells[1]);
To = MainBoard.GetCell(x, y);
if (To != null && To.IsOccupied() && To.Piece.IsSameSide(currentPlayer))
{
return(MoveResult.WrongDestinationCell);
}
var possibleMoves = GetPossibleMoves(From);
if (!possibleMoves.Contains(To))
{
return(MoveResult.ImpossibleMove);
}
return(PerformAMove());
}
catch
{
return(MoveResult.WrongInputFormat);
}
}
private List <Cell> GetPossibleMoves(Cell Start)
{
var possibleMoves = new List <Cell>();
if (Start?.Piece == null)
{
return(possibleMoves);
}
var x = Start.X;
var y = Start.Y;
var player = Start.Piece.Player;
var isContinouos = Start.Piece.IsContinuous;
foreach (var direction in Start.Piece.MoveDirections.Where(md => !md.FirstMove || (md.FirstMove && IsFirstMove(Start.Piece))))
{
for (var i = 1; i < (isContinouos ? MainBoard.Rank : 2); i++)
{
var cell = MainBoard.GetCell(x + direction.X * i, y + direction.Y * i);
if (cell == null)
{
break;
}
if (cell.IsOccupied())
{
if (!cell.Piece.IsSameSide(player))
{
possibleMoves.Add(cell);
}
break;
}
if (!direction.OnlyWithAttack)
{
possibleMoves.Add(cell);
}
}
}
return(possibleMoves);
}