LibGDX，flappy bird克隆，创建按钮

Question

我正在开发一个flappy bird克隆，我真的被我想要创建的按钮卡住了。对不起，我知道这是一个基本问题，但我是初学者，我真的需要你的帮助。所以，游戏已经基本完成了，但是我想做一个按钮来做同样的事情，而不是触摸整个屏幕让一只鸟跳起来。这是我的InPurthandler课程：

public class InputHandler implements InputProcessor {

private Bird myBird;
private GameWorld myWorld;

// Ask for a reference to the Bird when InputHandler is created.
public InputHandler(GameWorld myWorld) {
    // myBird now represents the gameWorld's bird.
   this.myWorld = myWorld;
   myBird = myWorld.getBird();
}

@Override
public boolean touchDown(int screenX, int screenY, int pointer, int button) {

    if (myWorld.isReady()) {
        myWorld.start();
    }

    myBird.onClick();

    if (myWorld.isGameOver() || myWorld.isHighScore()) {
        // Reset all variables, go to GameState.READ
        myWorld.restart();
    }
    return true;
}

@Override
public boolean keyDown(int keycode) {
    return false;
}

@Override
public boolean keyUp(int keycode) {
    return false;
}

@Override
public boolean keyTyped(char character) {
    return false;
}

@Override
public boolean touchUp(int screenX, int screenY, int pointer, int button) {
    return false;
}

@Override
public boolean touchDragged(int screenX, int screenY, int pointer) {
    return false;
}

@Override
public boolean mouseMoved(int screenX, int screenY) {
    return false;
}

@Override
public boolean scrolled(int amount) {
    return false;
}

}

我在GameScreen类中创建了一个舞台和一个演员（按钮）（它不工作），并在屏幕上显示，但我不知道下一步该怎么做。再一次，我为这样一个基本的问题感到抱歉，但我真的需要你的帮助来完成这个游戏。

public class GameScreen implements Screen {

private OrthographicCamera cam;
private int gameHeight;

Stage stage;
TextureAtlas buttonAtlas;
TextButtonStyle buttonStyle;
TextButton button;
Skin skin;
BitmapFont font;

SpriteBatch batch;

private GameWorld world;
private GameRenderer renderer;
private float runTime;


// This is the constructor, not the class declaration
public GameScreen() {

    float screenWidth = Gdx.graphics.getWidth();
    float screenHeight = Gdx.graphics.getHeight();
    float gameWidth = 544;
    float gameHeight = screenHeight / (screenWidth / gameWidth);

    world = new GameWorld();
    renderer = new GameRenderer(world, (int) gameHeight, (int) gameWidth);

    Gdx.input.setInputProcessor(new InputHandler(world));
}


@Override
public void render(float delta) {
    runTime += delta;
    world.update(delta);
    renderer.render(runTime);

    cam = new OrthographicCamera();
    cam.setToOrtho(false, 544, gameHeight);
    batch = new SpriteBatch();
    batch.setProjectionMatrix(cam.combined);

    stage.act();

    batch.begin();
    stage.draw();
    batch.end();
}

@Override
public void resize(int width, int height) {
    System.out.println("GameScreen - resizing");
}

@Override
public void show() {
    System.out.println("GameScreen - show called");

    stage = new Stage (Gdx.graphics.getWidth(), Gdx.graphics.getHeight(), true);

    font = new BitmapFont(Gdx.files.internal("data/font.fnt"), false);

    skin = new Skin();
    buttonAtlas = new TextureAtlas ("data/button.pack");
    skin.addRegions(buttonAtlas);

    buttonStyle = new TextButtonStyle();
    buttonStyle.up = skin.getDrawable("button");
    buttonStyle.over = skin.getDrawable("button - Copy");
    buttonStyle.down = skin.getDrawable("button - Copy");
    buttonStyle.font = font;

    button = new TextButton("" ,buttonStyle);
    stage.addActor(button);

}

@Override
public void hide() {
    System.out.println("GameScreen - hide called");
}

@Override
public void pause() {
    System.out.println("GameScreen - pause called");
}

@Override
public void resume() {
    System.out.println("GameScreen - resume called");
}

@Override
public void dispose() {
    // Leave blank
}

}

Answer 1

Wolfish的想法是对的。翻译成Libgdx框架如下：

    btnBounce.addListener( new ClickListener() {             
        @Override
        public void clicked(InputEvent event, float x, float y) {
            bird.bounce();
        };
    });

Answer 2

您几乎可以摆脱任何引用一般触摸输入的东西。完成此操作后，您需要让按钮的OnClick（）方法调用“反弹”小鸟的方法。如果您给这个函数一个自己的方法，它应该相对容易。

为了摆脱“为你做”，我将向您展示一个C#示例：

boingButton_Click(Object sender, EventArgs e)
{
    bird.Bounce();
}

以及这样的反弹方法：

Bounce()
{
    bird.Height += 4;
    bird.Descend();
}

这将是假设你有一个方法的鸟的下降.与按钮的优点是，理想情况下，你不应该需要任何重载为它的方法，虽然我可能是错误的Java。