public override void Move(MoveDirection dir)
{
Position to;
switch (dir)
{
case MoveDirection.UpLeft:
to = new Position(Pos.Row - 1, Pos.Col - 1);
break;
case MoveDirection.UpRight:
to = new Position(Pos.Row - 1, Pos.Col + 1);
break;
case MoveDirection.DownLeft:
to = new Position(Pos.Row + 1, Pos.Col - 1);
break;
case MoveDirection.DownRight:
to = new Position(Pos.Row + 1, Pos.Col + 1);
break;
default: // Should cover all cases
return;
}
if (!_board.IsValidPosition(to))
return;
Move m = new Move(Pos, to);
_board.Move(m);
Pos = to;
}
/// <summary>
/// Move this piece with by the provided move. If the move is invalid,
/// it will throw an InvalidMoveException
/// </summary>
/// <param name="move">The move to make</param>
public override void Move(Move move)
{
if (!IsValidMove(move))
throw new InvalidMoveException();
_board.Move(move);
Pos = move.To;
}
protected override bool IsValidMove(Move move)
{
var rowDiff = Math.Abs(Pos.Row - move.To.Row);
var colDiff = Math.Abs(Pos.Col - move.To.Col);
var canDoMove = rowDiff == 1 && colDiff == 1;
return canDoMove
&& _board.IsValidPosition(move.To)
&& _board.IsCellEmpty(move.To);
}
protected override bool IsValidMove(Move move)
{
var rowDiff = move.To.Row - Pos.Row;
var colDiff = Math.Abs(Pos.Col - move.To.Col);
bool isUpperDiag = rowDiff == -1 && colDiff == 1;
var piece = _board.GetCell(move.To);
var emptyOrLarva = piece == null || piece is Larva;
return isUpperDiag
&& emptyOrLarva
&& _board.IsValidPosition(move.To);
}
public void Move(Move m)
{
var cell = GetCell(m.From);
SetCell(m.From, ' ');
SetCell(m.To, cell);
}
private Bird GetBirdToMove(Move move)
{
foreach (var bird in _birds)
{
if (bird.Pos == move.From)
return bird;
}
throw new InvalidMoveException();
}