// Constructors
public Piece(GoInterface.PieceRepresentation pieceRepresentation, Army army, PiecePosition position)
{
this.army = army;
this.pieceRepresentation = pieceRepresentation;
this.position = position;
if(army.LastPlay == position)
{
throw new PieceException(this, "Invalid place.");
}
int liberties = CheckNeighbours();
if(!IsValidPosition(liberties))
{
RollbackChanges();
throw new PieceException(this, "Invalid place.");
}
CommitChanges(liberties);
army.LastPlay = position;
}
public void PutPiece(PiecePosition position, String playerName, GoInterface.PieceRepresentation pieceRepresentation)
{
if(!started)
{
throw new GameException("Game is not started. Please start game before playing.");
}
if(!active.Name.Equals(playerName))
{
throw new GameException("You are not the current player.");
}
try
{
new Piece(pieceRepresentation, active.Army, position);
active = (active == white? black: white);
}
catch(PieceException exception)
{
throw new GameException(exception.Message, exception);
}
}