LibGDX如何捕捉actor界限之外的触摸事件

Question

我有一个舞台和演员，大小为200x200。我需要演员抓住触摸事件来进行一些计算。但问题是触摸事件只有在触及actor绑定时触发。我怎样才能触摸屏幕的任何区域，但是在演员的课堂内处理？

public class MyActor extends Actor {

public MyActor() {

    setBounds(100f, 100f, 200f, 200f);

    addListener(new InputListener() {
        @Override
        public boolean touchDown(InputEvent event, float x, float y, int pointer, int button) {
            return super.touchDown(event, x, y, pointer, button);
        }

        @Override
        public void touchDragged(InputEvent event, float x, float y, int pointer) {
            super.touchDragged(event, x, y, pointer);
        }

        @Override
        public void touchUp(InputEvent event, float x, float y, int pointer, int button) {
            super.touchUp(event, x, y, pointer, button);
        }
    });
}

Answer 1

在舞台上添加侦听器而不是任何特定的Actor

stage.addListener(new InputListener(){

            @Override
            public boolean touchDown(InputEvent event, float x, float y, int pointer, int button) {

                Gdx.app.log("Stage Listener","inside touch down");
                return super.touchDown(event, x, y, pointer, button);
            }

            @Override
            public void touchDragged(InputEvent event, float x, float y, int pointer) {


                super.touchDragged(event, x, y, pointer);
            }

            @Override
            public void touchUp(InputEvent event, float x, float y, int pointer, int button) {
                super.touchUp(event, x, y, pointer, button);
            }
        });

修改

在MyActor侦听器tocuhDown(..)方法

中所有必需的Actor和句柄上的Fire事件

stage.addListener(new InputListener(){

        @Override
        public boolean touchDown(InputEvent event, float x, float y, int pointer, int button) {

            for(Actor actor:stage.getActors()){
                if(actor.getName().equals("MyActor")) {

                    InputEvent myEvent=new InputEvent();
                    myEvent.setType(InputEvent.Type.touchDown);
                    myEvent.setStage(stage);
                    myEvent.setPointer(pointer);
                    myEvent.setButton(button);
                    myEvent.setStageX(x);
                    myEvent.setStageY(y);
                    actor.fire(myEvent);
                }
            }
            return super.touchDown(event,x,y,pointer,button);
        }
    });

MyActor上课

public class MyActor extends Actor {

  public MyActor(){
    setBounds(100f, 100f, 200f, 200f);
    setName("MyActor");

    addListener(new InputListener() {
        @Override
        public boolean touchDown(InputEvent event, float x, float y, int pointer, int button) {

            Gdx.app.log("MyActor","touched");
            event.stop();
            return false;
        }
    });
  }
}