Question

我几乎解决了如何处理碰撞问题。但我被困在一个错误上。我看着图书馆，我还不明白如何解决这个错误。我的代码如下所示。

final Array destructableBodies = new Array（）;

final Body destroyer2 = destroyBody;
final Array<Body> bodiesToDestroy = new Array<Body>();

public void render(float delta) {
    Gdx.gl.glClearColor(0, 0, 0, 1);
    Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

    System.out.println(delete);


    world.step(TIMESTEP, VELOCITYITERATIONS, POSITIONITERATIONS);
    if (delete = true)
    {   

        for(Body body : destructableBodies)
        {   
            if (delete = true)
            {
                System.out.println("ENTRY POINT 7");
                delete = false;
                world.destroyBody(body);
            }
            break;
        }

        System.out.println("ENTRY POINT 8");
    }
    bodiesToDestroy.clear();

//在渲染方法

中

world.setContactListener（new ContactListener（）{

        @Override
        public void preSolve(Contact contact, Manifold oldManifold) {
            Body bodyA = contact.getFixtureA().getBody();
            Body bodyB = contact.getFixtureB().getBody();
            // you can also use the user data to store information about the destructibility of bodies
            if(bodyA == destroyer2 && destructableBodies.contains(bodyB, true))
            {
                bodiesToDestroy.add(bodyB);
                System.out.println("ENTRY POINT 2");
                delete = true;
            }
            else if(bodyA == destroyer2 && destructableBodies.contains(bodyA, true))
            {
                bodiesToDestroy.add(bodyA);
                System.out.println("ENTRY POINT 3");
                delete = true;
            }
            destructableBodies.add(destroyBody);
            System.out.println("ENTRY POINT 4");
        }

        @Override
        public void postSolve(Contact contact, ContactImpulse arg1) {

        }

        @Override
        public void endContact(Contact arg0) {
            System.out.println("ENTRY POINT 5");
            reload();
            delete = false;
        }

        @Override
        public void beginContact(Contact arg0) {
            System.out.println("ENTRY POINT 6");
        }
    });

我已经更改了代码并且正文被破坏但我的游戏崩溃了，我得到断言失败错误。我也得到了身体数量＆lt;身体容量。我设置了一些打印语句，发现每次发生碰撞时，它都会为每个循环输入两次并删除一个主体两次，但只创建一个主体。不知道该怎么做我甚至设置了布尔标志，但即使这样也行不通。

卡在Box2D中的类型不匹配错误

0 个答案: