在JavaFX中右击扫雷器

Question

private class Tile extends StackPane {
    private int x, y;
    private boolean hasBomb;
    private boolean isOpen = false;

    private Rectangle border = new Rectangle(TILE_SIZE - 2, TILE_SIZE - 2);
    private Text text = new Text();

    public Tile(int x, int y, boolean hasBomb) {
        this.x = x;
        this.y = y;
        this.hasBomb = hasBomb;

        border.setStroke(Color.BLACK);
        border.setFill(Color.GREY);
        text.setFont(Font.font(18));
        text.setText(hasBomb ? "X" : "");
        text.setVisible(false);

        getChildren().addAll(border, text);

        setTranslateX(x * TILE_SIZE);
        setTranslateY(y * TILE_SIZE);

        onMouseClicked: function(e:MouseEvent):Void {
            if (e.button == MouseButton.SECONDARY) {
                setOnMouseClicked(e -> open());
            }
        }
    }

Answer 1

您的onmouseclicked处理程序出了问题。

有关lambda表达式的正确语法，请参见oracle教程的语法部分。

正确的做法是

this.setOnMouseClicked(e -> {
    if (e.getButton() == MouseButton.SECONDARY) {
        open();
    }
});

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