Question

我刚开始使用libgdx，我是游戏开发的新手，我希望我的相机跟随我的精灵，但它不会跟随我的精灵（播放器），而是精灵只是来回移动很少不要向上（我想要）。

这是我的show（）方法

 public void show() {
        world = new World(new Vector2(0, 25), true);
        renderer = new Box2DDebugRenderer();
        cam = new OrthographicCamera(Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
        cam.position.set(Gdx.graphics.getWidth() / 2, Gdx.graphics.getHeight() / 2, 0);
        cam.update();

        Gdx.input.setInputProcessor(new InputController() {
            @Override
            public boolean keyDown(int keycode) {
                if(keycode == Input.Keys.A)
                    box.setLinearVelocity(0f, 60f);
                if(keycode == Input.Keys.D)
                    box.setLinearVelocity(0f, 20f);
                if(keycode == Input.Keys.ESCAPE)
                    ((Game) Gdx.app.getApplicationListener()).setScreen(new MainMenu());
                return true;
            }

            @Override
            public boolean keyUp(int keycode) {
                if(keycode == Input.Keys.A)
                    box.setLinearVelocity(0f, 0f);
                if(keycode == Input.Keys.D)
                    box.setLinearVelocity(0f, 0f);

                return true;
            }
        });


        shapeRenderer = new ShapeRenderer();
        batch = new SpriteBatch();
        texture = new Texture("img/imgs.png");
        sprite = new Sprite(texture);
        sprite.setSize(47, 45);
        sprite.setOrigin(sprite.getWidth()/2, sprite.getHeight()/2);
        sprite.setBounds(200, 200, 64, 64);
        //sprite.setPosition(Gdx.graphics.getWidth()/2 -sprite.getWidth()/2, Gdx.graphics.getHeight()/2-sprite.getHeight()/2);



        //Body definition
        BodyDef bodyDef = new BodyDef();
        bodyDef.type = BodyDef.BodyType.DynamicBody;
        bodyDef.position.set(0, Gdx.graphics.getHeight()/2 - 250);

        box = world.createBody(bodyDef);

        //Polygon Shape
        PolygonShape shape = new PolygonShape();
        shape.setAsBox(10, 20);


        //fixture definition
        FixtureDef fixtureDef = new FixtureDef();
        fixtureDef.shape = shape;
        fixtureDef.density = 5f;
        fixtureDef.friction = .5f;

        box.createFixture(fixtureDef);

        box.setUserData(sprite);


        shape.dispose();

这是我的渲染方法

public void render(float delta) {
        Gdx.gl.glClearColor(1, 1, 1, 1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

        world.step(1/60f, 6, 2);


        cam.position.set(0,sprite.getY()+sprite.getHeight()/2,0);


        cam.update();

        batch.setProjectionMatrix(cam.combined);

        batch.disableBlending();
        batch.begin();
        world.getBodies(tmpBodies);
        for(Body body: tmpBodies)
            if(body.getUserData() instanceof  Sprite){
                Sprite boxsprite = (Sprite) body.getUserData();
                boxsprite.setPosition(body.getPosition().x - sprite.getHeight()/2, body.getPosition().y- sprite.getHeight()/2);
                boxsprite.setRotation(body.getAngle() * MathUtils.radiansToDegrees);
                boxsprite.draw(batch);
            }
        batch.end();

        shapeRenderer.setColor(Color.RED);
        shapeRenderer.begin(ShapeRenderer.ShapeType.Filled);
        shapeRenderer.rect(0, 200, 50, 50);
        shapeRenderer.translate(1, 0, 0);
        shapeRenderer.end();

        renderer.render(world, cam.combined);
    }

这是我的调整大小方法

 public void resize(int width, int height) {
        cam.viewportWidth = width;
        cam.viewportHeight = height;
        cam.update();


    }

我已经尝试了所有可能的解决方案，但无法获得所需的结果。我只是希望我的相机跟随我的精灵，并且精灵也能正常工作。请帮我提供更好的解决方案。提前谢谢

libGDX：我的相机没有关注我的精灵图像（播放器）

0 个答案: