Question

我创建了自己的InputAdapter，所以我可以在我的3D游戏应用中使用它，它主要由TouchPad和第一人称相机控制器组成，并计算触摸事件是否触及触摸板或屏幕，以便我可以将触摸事件传递给正确的聆听者，这里是代码：

 package com.mygdx.game.test;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.InputAdapter;
import com.badlogic.gdx.graphics.PerspectiveCamera;
import com.badlogic.gdx.graphics.g3d.utils.FirstPersonCameraController;
import com.badlogic.gdx.scenes.scene2d.Actor;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.scenes.scene2d.ui.Touchpad;


public class MainController extends InputAdapter {
    private float YAxis = Gdx.graphics.getHeight();
    private PerspectiveCamera camera;
    private FirstPersonCameraController cameraController;
    private Stage stage;
    private int padPointer = -1;
    private int camPointer = -1;
    private final String TAG = "TOUCH_EVENT";


    public MainController(PerspectiveCamera camera, Stage stage) {
        this.camera = camera;
        this.stage = stage;

        cameraController = new FirstPersonCameraController(this.camera);

    }

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

        Actor actor = stage.hit(screenX, YAxis - screenY, true);
        if (actor != null && actor instanceof Touchpad) {
            padPointer = pointer;
            stage.touchDown(screenX, screenY, pointer, button);
            Gdx.app.log(TAG, "pad down pointer = " + pointer);

            return true;
        } else {

            camPointer = pointer;
            cameraController.touchDown(screenX, screenY, pointer, button);

            Gdx.app.log(TAG, "camera down pointer = " + pointer);
            return true;

        }


    }

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

        if (pointer == padPointer) {
            stage.touchDragged(screenX, screenY, pointer);
            Gdx.app.log(TAG, "pad dragging pointer = "+pointer);

            return true;
        }

        if (pointer == camPointer) {
            cameraController.touchDragged(screenX, screenY, pointer);
            Gdx.app.log(TAG, "camera dragging pointer = " + pointer);

            return true;
        }

        return true;
    }

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



        if (pointer == camPointer) {
            camPointer =-1;
            cameraController.touchUp(screenX, screenY, pointer, button);
            Gdx.app.log(TAG, "camera up pointer = " + pointer);
            return true;
        }
        if (pointer == padPointer) {
            padPointer = -1;
            stage.touchUp(screenX, screenY, pointer, button);
            Gdx.app.log(TAG, "pad up pointer = " + pointer);
            return true;
        }
        return true;
    }

    public void update() {
        cameraController.update();
        stage.draw();
    }

    public void dispose() {
        stage.dispose();
    }

}

这是我的问题的展示案例：

案例1：第一次手指放在触控板上，然后第二次手指放在屏幕上

结果：可以移动触控板，但无法移动屏幕，移动触控板时屏幕也会移动!!

案例2：第一次手指在屏幕上，然后第二次手指在触控板上

结果：它完美地工作，触摸板和屏幕根据手指（指针）独立移动。

所以如何解决第一种情况变得像第二种情况对我来说是完美的。我不知道cameraController是如何根据第一个指针移动的，即使它不依赖它！？。

如何在LibGDX中使用第一人称相机控制器实现TouchPad

0 个答案: