在LibGDx中添加光线处理程序导致InputListener出现问题

Question

我正在尝试Libgdx，我有一个参与者，只要我们点击它，它就会执行一些操作。到目前为止，它运行得很好。现在我想给演员增加一些光。在做了一些研究之后，我偶然发现了Box2DLights。当我尝试将它添加到我的项目中时，onClick Actor运行良好，但似乎不起作用。我非常确定这是由于rayhandler/Box2DLights，因为这是我唯一做的更改。下面是我为包含Box2DLights所做的最小更改。

public class GameScreen implements Screen {
    private RayHandler rayHandler;
    private World world;

    public GameScreen(Game game) {
        this.game = game;
        world = new World(new Vector2(0, 0), true);
        rayHandler = new RayHandler(world);
        rayHandler.setAmbientLight(0.1f, 0.1f, 0.1f, 1f);
        rayHandler.setBlurNum(3);
    }

     @Override
    public void show() {
        viewport = new FitViewport(1080, 720);
        stage = new Stage(viewport);
        rayHandler.setCombinedMatrix(stage.getCamera().combined);
        Gdx.input.setInputProcessor(stage);
    }
    @Override
    public void render(float delta) {
        //some custom rendering logic, but nothing related to rayHandler, excluding this for brevity.
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
        stage.act(Gdx.graphics.getDeltaTime());
        stage.draw();
        rayHandler.updateAndRender();
    }

现在当我调试的时候，我意识到onClick

略低于实际参与者的工作

，这意味着坐标不知何故被筛选了(我知道很奇怪)。你能帮帮忙吗？

Answer 1

感谢@Mikhail Thanks的回复，here。如果其他人再次发现这一点，这里有一个有效的解决方案。

viewport = new FitViewport(1080, 720);
rayHandler.useCustomViewport(viewport.getScreenX(),
                             viewport.getScreenY(),
                             viewport.getScreenWidth(),
                             viewport.getScreenHeight());

解释是box2lights doesn't auto-acquire custom viewports, and restores the 'default one' after the updateAndRender called - your need to set your custom 'fitted' viewport to rayHandler so that it would restore it correctly- using the rayHandler.useCustomViewport(...) method. All credits to @mikahi credits