试图在事件或董事会状态上更改标签

Question

你好同学书呆子我有一个问题！ 我正在开展一个项目，这个项目将于周三到期，我被困在中途。该游戏是双人游戏，其中每个玩家从16个节点的列表中选择转弯，当点击时，将隐藏值添加到玩家得分。该项目给出了一个标签，上面写着＆＃34;玩家1＆＃34;默认情况下，这部分作业要求我们更改文字以表示当前是谁。当前玩家猜到一个正方形后，转弯会发生变化。还有一个＆＃34; Hold＆＃34;按钮使当前玩家可以跳过转弯（有一个＆＃34; Bust＆＃34;方形隐藏，将当前玩家的得分设置为零）。我想在完成这部分之后我可以想出那部分内容。你能帮助我指点正确的方向吗？请不要为我解决。我真的想学习这些东西，我只需要一些方向/建议。

以下是它运行时的样子： Image

感谢您的帮助，这个网站太棒了！ 以下是相关代码：

public class GuiCodeBehind {

  private ViewModel theViewModel;

  private List<Button> buttons;
  private List<Node> boardNodes;

  @FXML
    private GridPane boardGridPane;

  @FXML
    private Button holdButton;

  @FXML
    private Label gameStatusLabel;

  @FXML
    private TextField player1ScoreTextField;

  @FXML
    private TextField player2ScoreTextField;

  public GuiCodeBehind() {
    this.theViewModel = new ViewModel();
    this.createButtons();
  }

  /**
   * Initializes the GUI components, binding them to the view model properties
   * and setting their event handlers.
   */
  @FXML
  public void initialize() {
    this.bindGuiComponentsToViewModel();
    this.addButtonsToBoard();
    this.boardNodes = this.boardGridPane.getChildren();
    this.setEventActions();
  }

  private void createButtons() {
    this.buttons = new ArrayList<Button>();
    for (int i = 0; i < 16; i++) {
      this.buttons.add(this.createButtonWithId(i));
    }
  }

  private Button createButtonWithId(int id) {
    String buttonId = "" + (id + 1);
    Button aButton = new Button("   ?   ");
    aButton.setMaxWidth(Double.MAX_VALUE);
    aButton.setId(buttonId);
    return aButton;
  }

  private void addButtonsToBoard() {
    for (int row = 0; row < 4; row++) {
      this.addARow(row);
    }
  }

  private void addARow(int row) {
    for (int column = 0; column < 4; column++) {
      this.boardGridPane.add(this.buttons.remove(0), column, row);
    }
  }

  private void bindGuiComponentsToViewModel() {
    this.player1ScoreTextField.textProperty().
      bindBidirectional(this.theViewModel.player1ScoreProperty());
    this.player2ScoreTextField.textProperty().
      bindBidirectional(this.theViewModel.player2ScoreProperty());
  }

  private void setEventActions() {
    for (Node aButton: this.boardNodes) {
      aButton.setOnMouseClicked(event -> this.handleBoardButtonClick(aButton));
    }
  }

  private void handleBoardButtonClick(Node aButton) {
    aButton.setDisable(true);
    this.holdButton.requestFocus();
    this.theViewModel.play(aButton.getId());
    ((Button) aButton).setText(this.theViewModel.selectedSquareDescription());
  }

}

ViewModel：

/**
 * ViewModel defines the view model for the play-or-hold application.
 */
public final class ViewModel {

  private String descriptionOfSelectedSquare;
  private final Player player1;
  private final Player player2;
  private final GameBoard theBoard;
  private final GameController theGameController;
  private StringProperty player1Score;
  private StringProperty player2Score;
  private StringProperty gameStatus;

  /**
   * Creates a new ViewModel instance.
   * 
   * @precondition none
   * @postcondition the object and its properties exist
   */
  public ViewModel() {
    this.descriptionOfSelectedSquare = "";

    this.player1 = new RegularPlayer();
    this.player2 = new PrivilegedPlayer();

    GameBoardFactory factory = new OneDoublePointsBoardFactory(true);
    this.theBoard = factory.getGameBoard();

    this.theGameController = new GameController(this.theBoard, this.player1, this.player2);

    this.player1Score = new SimpleStringProperty("0");
    this.player2Score = new SimpleStringProperty("0");
  }

  /**
   * Returns the property that represents the score for player 1.
   * 
   * @precondition none
   * @return the property 
   */
  public StringProperty player1ScoreProperty() {
    return this.player1Score;
  }

  /**
   * Returns the property that represents the score for player 2.
   * 
   * @precondition none
   * @return the property 
   */
  public StringProperty player2ScoreProperty() {
    return this.player2Score;
  }

  /**
   * Tells the game controller to carry out the current
   * player's move.
   * 
   * @precondition 1 <= gameSquareId <= 16
   * @postcondition the current player's score reflects this move, &&
   *     currentMoveValue() returns the value of the
   * @param gameSquareId the ID of the selected control in the GUI
   */
  public void play(String gameSquareId) {
    int squareIndex = Integer.parseInt(gameSquareId) - 1;
    this.theGameController.play(squareIndex);
    this.descriptionOfSelectedSquare = this.theBoard.getSquare(squareIndex).getDescription();
    this.player1Score.setValue("" + this.player1.getScore());
    this.player2Score.setValue("" + this.player2.getScore());

  }

  /**
   * Returns the value of the current "move".
   * 
   * @precondition none
   * @return the value of the selected game board item 
   */
  public String selectedSquareDescription() {
    return this.descriptionOfSelectedSquare;
  }

  public StringProperty gameStatusStringProperty() {
    return this.gameStatus;
  }

}