实施图像按钮后相机不再工作 - Libgdx

Question

我正在为 Android 开发一款游戏。我希望用户能够通过拖动手指向左侧和右侧"scroll"。到现在为止效果很好。现在我正在尝试使用一些按钮来实现 Gui。

它应该看起来像这样：
https://i.stack.imgur.com/jf0uZ.png

代码：

public class MainGameScreen implements Screen, InputProcessor {
    Texture background, background_left, background_right;
    public SpriteBatch batch;
    //Graphical user interface
    private Stage GUIStage;
    private InputMultiplexer multiplexer;

//Camera
OrthographicCamera camera;
//Font
private BitmapFont font;
private String message = "Touch me";

//Buttons
private Stage button;
private Texture myTexture;
private TextureRegion myTextureRegion;
private TextureRegionDrawable myTexRegionDrawable;
private ImageButton imageButton;

public MainGameScreen (Trench_Warfare game) {
    this.game = game;
    batch = new SpriteBatch();
    button = new Stage();

    //GUI - Graphical user interface
    GUIStage = new Stage(new ScreenViewport());

    Image gui_background = new Image(new Texture("gui/GUI.png"));
    gui_background.setPosition(0,0);
    gui_background.setTouchable(Touchable.disabled);
    GUIStage.addActor(gui_background);

    //Buttons
    myTexture = new Texture(Gdx.files.internal("gui/button/paper_riflemen.png"));
    myTextureRegion = new TextureRegion(myTexture);
    myTexRegionDrawable = new TextureRegionDrawable(myTextureRegion);
    imageButton = new ImageButton(myTexRegionDrawable); //Set the button up
    button = new Stage(new ScreenViewport()); //Set up a stage for the ui;
    imageButton.isTouchable();
    imageButton.setBounds(0,500,194,200);
    button.addActor(imageButton); //Add the button to the stage to perform rendering and take input.

    //Font
    font = new BitmapFont();
    font.setColor(Color.BLACK);
    font.getData().scale(5);

    //Background
    background = new Texture("level1.png");
    background_left = new Texture("level1_seiten.png");
    background_right = new Texture("level1_seiten.png");

    //Camera
    camera = new OrthographicCamera(Gdx.graphics.getWidth()/*4000*/, Gdx.graphics.getHeight()/*2200*/);
    camera.update();
    camera.setToOrtho(false, Gdx.graphics.getWidth()*1.5f, Gdx.graphics.getHeight()*1.5f);

    button.addListener(new ClickListener(){
        @Override
        public void clicked(InputEvent event, float x, float y) {
            message = "Touch";
            event.handle();//the Stage will stop trying to handle this event
        }
    });

    InputMultiplexer multiplexer = new InputMultiplexer(button, this);
    multiplexer.addProcessor(button);
    multiplexer.addProcessor(this);
    Gdx.input.setInputProcessor(multiplexer);

}

相机移动发生在“@Override touchDragged”的东西中。我不认为我必须在这里展示它。

我现在正在尝试实施这些按钮两天，但我无法让它们工作。问题就在底部：

InputMultiplexer multiplexer = new InputMultiplexer(this, button);       
Gdx.input.setInputProcessor(multiplexer);

按照这个顺序，我可以移动相机，但我不能触摸按钮。如果我写 (...)(button, this); 我不能再移动相机但可以点击按钮。我也可以通过点击屏幕上的任意位置来激活按钮的功能。

希望你能帮我解决这个问题！

Answer 1

根据 LibGDX Wiki on Event-Handling with InputMultiplexer:

The InputMultiplexer will hand any new events to the first InputProcessor that was added to it. If that processor returns false from the method invoked to handle the event, this indicates the event was not handled and the multiplexer will hand the event to the next processor in the chain. Through this mechanism, the MyUiInputProcessor can handle any events that fall inside one of its widgets and pass on any other events to the MyGameInputProcessor.

您的问题可以通过将 InputAdapter 的子类中重写方法的返回值设置为 false 来解决，这是一个示例：

@Override
public boolean touchDragged(int screenX, int screenY, int pointer) {
    [Some Logic]
    return false; // Input has not been processed, next processor in the multiplexer will try to handle this
}

实施图像按钮后相机不再工作 - Libgdx

Camera doesn't work anymore after implementing Image Button - Libgdx

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