Events JavaFx状态更改侦听器
我正在开发一个应用程序,我想在其中实现一个菜单。我有一个Events JavaFx状态更改侦听器,events,menu,javafx,handler,scene,Events,Menu,Javafx,Handler,Scene,我正在开发一个应用程序,我想在其中实现一个菜单。我有一个游戏状态和一个主菜单类。两者都扩展了组。我不知道如何将更改侦听器写入Main.state,因此当它从菜单更改为游戏时,场景将切换 以下是主菜单类的一部分: public class MainMenu extends Group { private final Image background; private final Rectangle bgRect; private final int buttonNo = 3; private Me
游戏状态
和一个主菜单
类。两者都扩展了组
。我不知道如何将更改侦听器写入Main.state
,因此当它从菜单更改为游戏时,场景将切换
以下是主菜单
类的一部分:
public class MainMenu extends Group {
private final Image background;
private final Rectangle bgRect;
private final int buttonNo = 3;
private MenuButton[] buttons;
private final double xStart = -200;
private final double yStart = 100;
private Group root;
private Scene scene;
public MainMenu () {
background = new Image(getClass().getResource("mainmenuBg.png").toString());
bgRect = new Rectangle(660,660);
bgRect.setFill(new ImagePattern(background));
root = new Group();
scene = new Scene(root, 650, 650);
scene.setCamera(new PerspectiveCamera());
root.getChildren().add(bgRect);
initButtons(root);
//Start game
buttons[0].setOnMouseClicked(new EventHandler<Event>() {
@Override
public void handle(Event t) {
Main.state = STATE.GAME;
}
});
//Options
buttons[1].setOnMouseClicked(new EventHandler<Event>() {
@Override
public void handle(Event t) {
//options menu will come here
}
});
//Exit
buttons[2].setOnMouseClicked(new EventHandler<Event>() {
@Override
public void handle(Event t) {
Platform.exit();
}
});
}
//...
}
任何帮助都将不胜感激。我成功地找到了一个好的解决方案。
我已经从这些类中删除了scene
字段,并在构造函数中添加了super
方法,然后将元素添加到类中(this.getChildren().addAll(…)
)
最后,这里是我的主控制器:
public class Main extends Application {
public int difficulty = 1;
public GameState gameState = new GameState(difficulty);
public MainMenu mainMenu = new MainMenu();;
StackPane stackPane = new StackPane();
@Override
public void start(final Stage stage) {
stage.resizableProperty().setValue(false);
stage.setTitle("Main");
Scene scene = new Scene(stackPane, 650, 650);
scene.setCamera(new PerspectiveCamera());
stage.setScene(scene);
stage.show();
stackPane.getChildren().add(mainMenu);
mainMenu.getStartButton().setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent t) {
changeScene(gameState);
try {
gameState.startGame();
} catch (InterruptedException ex) {
Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
}
}
});
}
public void changeScene(Parent newPage) {
stackPane.getChildren().add(newPage);
EventHandler<ActionEvent> finished = new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
stackPane.getChildren().remove(0);
}
};
final Timeline switchPage = new Timeline(
new KeyFrame(Duration.seconds(0), new KeyValue(stackPane.getChildren().get(1).opacityProperty(), 0.0), new KeyValue(stackPane.getChildren().get(0).opacityProperty(), 1.0)),
new KeyFrame(Duration.seconds(3), finished, new KeyValue(stackPane.getChildren().get(1).opacityProperty(), 1.0), new KeyValue(stackPane.getChildren().get(0).opacityProperty(), 0.0))
);
switchPage.play();
}
}
public类主扩展应用程序{
公共int难度=1;
公共游戏状态=新游戏状态(难度);
public main menu main menu=新建main menu();;
StackPane StackPane=新的StackPane();
@凌驾
公众假期开始(最后阶段){
stage.resizebleproperty().setValue(false);
舞台名称(“主要”);
场景=新场景(stackPane,650、650);
scene.setCamera(新透视摄像头());
舞台场景;
stage.show();
stackPane.getChildren().add(主菜单);
mainMenu.getStartButton().setOnAction(新的EventHandler()){
@凌驾
公共无效句柄(ActionEvent t){
改变场景(游戏状态);
试一试{
gameState.startName();
}捕获(中断异常例外){
Logger.getLogger(Main.class.getName()).log(Level.SEVERE,null,ex);
}
}
});
}
公共无效更改场景(父新页){
stackPane.getChildren().add(newPage);
EventHandler finished=新的EventHandler(){
@凌驾
公共无效句柄(ActionEvent事件){
stackPane.getChildren().remove(0);
}
};
最终时间线切换页面=新时间线(
新关键帧(持续时间.seconds(0),新键值(stackPane.getChildren().get(1).opacityProperty(),0.0),新键值(stackPane.getChildren().get(0).opacityProperty(),1.0)),
新关键帧(持续时间.秒(3),完成,新键值(stackPane.getChildren().get(1).opacityProperty(),1.0),新键值(stackPane.getChildren().get(0).opacityProperty(),0.0))
);
switchPage.play();
}
}
public class Main extends Application {
public int difficulty = 1;
public GameState gameState = new GameState(difficulty);
public MainMenu mainMenu = new MainMenu();;
StackPane stackPane = new StackPane();
@Override
public void start(final Stage stage) {
stage.resizableProperty().setValue(false);
stage.setTitle("Main");
Scene scene = new Scene(stackPane, 650, 650);
scene.setCamera(new PerspectiveCamera());
stage.setScene(scene);
stage.show();
stackPane.getChildren().add(mainMenu);
mainMenu.getStartButton().setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent t) {
changeScene(gameState);
try {
gameState.startGame();
} catch (InterruptedException ex) {
Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
}
}
});
}
public void changeScene(Parent newPage) {
stackPane.getChildren().add(newPage);
EventHandler<ActionEvent> finished = new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
stackPane.getChildren().remove(0);
}
};
final Timeline switchPage = new Timeline(
new KeyFrame(Duration.seconds(0), new KeyValue(stackPane.getChildren().get(1).opacityProperty(), 0.0), new KeyValue(stackPane.getChildren().get(0).opacityProperty(), 1.0)),
new KeyFrame(Duration.seconds(3), finished, new KeyValue(stackPane.getChildren().get(1).opacityProperty(), 1.0), new KeyValue(stackPane.getChildren().get(0).opacityProperty(), 0.0))
);
switchPage.play();
}
}