Question

在我的libgdx项目中设置精灵按钮时，如果我给出的屏幕尺寸大于我的设备，我会移动他们的触摸区域。

这是我编写的代码的一个简单示例。主要课程扩展了游戏......

public class Application extends Game
    {
        public SpriteBatch batch;
        public OrthographicCamera camera;

        public Vector3 touchPosition;

        protected TitleScreen screen_title;
        protected SettingsScreen screen_settings;
        public PlayScreen screen_play;

        @Override
        public void create()
        {
            batch = new SpriteBatch();

            camera = new OrthographicCamera(Constants.VIEWPORT_WIDTH, Constants.VIEWPORT_HEIGHT);
            camera.setToOrtho(false,Constants.VIEWPORT_WIDTH, Constants.VIEWPORT_HEIGHT);

            touchPosition = new Vector3();

            //SCREENS
            screen_title = new TitleScreen(this);
            screen_settings = new SettingsScreen(this);
            screen_play = new PlayScreen(this);

            this.setScreen(screen_title);
        }
}

一个带有图像的简单屏幕，用于检测是否被触摸......

  public TitleScreen(final Application game)
{
    this.game = game;
    game.camera = new OrthographicCamera(Constants.VIEWPORT_WIDTH, Constants.VIEWPORT_HEIGHT);
    game.camera.position.set(Constants.VIEWPORT_WIDTH / 2, Constants.VIEWPORT_HEIGHT / 2, 0);

    background = new Sprite(new Texture(Gdx.files.internal(Constants.PATH_BACKGROUND + "bg.png")));
    img = new Sprite(new Texture(Gdx.files.internal("badlogic.jpg")));
}

@Override
public void render(float delta)
{
    Gdx.gl.glClearColor(0.7f, 0.7f, 0.9f, 1);
    Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

    game.camera.update();
    game.batch.setProjectionMatrix(game.camera.combined);

    game.batch.begin();

    background.draw(game.batch);
    img.setPosition( Constants.VIEWPORT_WIDTH / 2, Constants.VIEWPORT_HEIGHT /2);
    img.draw(game.batch);

    game.batch.end();

    //detect touch position
    if(Gdx.input.justTouched())
    {
        game.touchPosition.set(Gdx.input.getX(), Gdx.input.getY(), 0);
        game.camera.unproject(game.touchPosition);

        if ((Gdx.input.getX() > img.getX()) &&
                Gdx.input.getX() < img.getX() + img.getWidth() &&
                Gdx.input.getY() < Gdx.graphics.getHeight() - img.getY() &&
                Gdx.input.getY() > Gdx.graphics.getHeight() - (img.getY() + img.getHeight()))
        {
            System.out.println("TOUCHED BUTTON!!!");
            System.out.println("X: " + Gdx.input.getX() + "/ Y: " +  Gdx.input.getY());
        }
    }

}

如上所述，此代码示例在桌面（任何大小）和我的手机（如果它具有相同或更小的屏幕尺寸）中工作正常，但不是当我使用更大的视口大小时，并不真正理解为什么:)

非常感谢您的帮助：）

Libgdx精灵移动了触摸区域

0 个答案: