AIMA.Core.Environment.NQueens.NQueensFunctionFactory.NQResultFunction.result C# (CSharp) Méthode

            public Object result(Object s, Action a)
            {
                if (a is QueenAction)
                {
                    QueenAction qa = (QueenAction)a;
                    NQueensBoard board = (NQueensBoard)s;
                    NQueensBoard newBoard = new NQueensBoard(board.getSize());
                    newBoard.setBoard(board.getQueenPositions());
                    if (qa.getName() == QueenAction.PLACE_QUEEN)
                        newBoard.AddQueenAt(qa.getLocation());
                    else if (qa.getName() == QueenAction.REMOVE_QUEEN)
                        newBoard.removeQueenFrom(qa.getLocation());
                    else if (qa.getName() == QueenAction.MOVE_QUEEN)
                        newBoard.moveQueenTo(qa.getLocation());
                    s = newBoard;
                }
                // if action is not understood or is a NoOp
                // the result will be the current state.
                return s;
            }
        }