Question

我想试用Box2d，并在教程中编写类似的代码，所有内容都正确呈现，但没有更新，也没有例外。请帮助我，我想我会疯了。

@Override
public void create () {
    world = new World(new Vector2(0, -10f), true);
    r = new Box2DDebugRenderer();
    camera = new OrthographicCamera(100, 100);
    camera.translate(50, 50, 0);
    BodyDef bd = new BodyDef();
    bd.type = BodyType.DynamicBody;
    bd.position.set(50, 50);
    Body body = world.createBody(bd);
    CircleShape cs = new CircleShape();
    cs.setRadius(1);
    FixtureDef fd = new FixtureDef();
    fd.shape = cs;
    body.createFixture(fd);
    cs.dispose();
    BodyDef b = new BodyDef();
    b.type = BodyType.StaticBody;
    b.position.set(30, 30);
    Body bo = world.createBody(b);
    PolygonShape ps = new PolygonShape();
    ps.setAsBox(10, 3);
    FixtureDef f = new FixtureDef();
    f.shape = ps;
    bo.createFixture(f);
    ps.dispose();
}

@Override
public void render () {
    Gdx.gl.glClearColor(1, 0, 0, 1);
    Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
    r.render(world, camera.combined);
    camera.update();
    world.step(1/60, 6, 2);
}

Answer 1

当然box2D仍然适用于Libgdx

你的问题就在这一行

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

尝试这样做

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

你的时间步长是考虑因素0因为1/60整数是0

我测试了你的代码它会起作用！

祝你好运

LIBGDX Box2d还能用吗？

1 个答案: