由于摩擦而快速击中地面时，jBox2D球在x轴处停止

如何解决由于摩擦而快速击中地面时，jBox2D球在x轴处停止

我正在尝试创建一个游戏，您可以在其中移动球，并且其中会有摩擦，但是如果我添加摩擦力，则球在跳高后撞到地面时会停止水平移动（可能是因为正常当球高速下落时，力较高，因此摩擦力更大）。当我除去摩擦力（将其设置为0）时可以，但是我想要摩擦力。

这是用于创建球和地板的主体的代码：

BodyDef ballDef = new BodyDef();
ballDef.type = BodyType.DYNAMIC;
CircleShape golfShape = new CircleShape();
golfShape.seTradius(blockSize / 6.0f / jBox2DScale);
ballBody = world.createBody(ballDef);
ballBody.setFixedRotation(true);
FixtureDef ballFixture = new FixtureDef();
ballFixture.density = 1f;
//ballFixture.restitution = 0.9f;
ballFixture.friction = 0.1f;
ballFixture.shape = golfShape;
ballBody.createFixture(ballFixture);
ballBody.setTransform(new Vec2(width / 2.0f / jBox2DScale,height / 2.0f / jBox2DScale),0.0f);

BodyDef blockDef = new BodyDef();
blockDef.type = BodyType.STATIC;
Body body = world.createBody(blockDef);
FixtureDef blockFixture = new FixtureDef();
blockFixture.density = 100;
blockFixture.restitution = 0.75f;
blockFixture.friction = 0.15f;
EdgeShape sideShape = new EdgeShape();
sideShape.set(new Vec2(0.0f,0.0f),new Vec2(width,0.0f));
sideShape.m_vertex0.set(-width,0.0f);
sideShape.m_vertex3.set(width * 2,0.0f);
sideShape.m_hasvertex0 = true;
sideShape.m_hasvertex3 = true;
sideShape.seTradius(0.01f);
blockFixture.shape = sideShape;
body.createFixture(blockFixture);
sideShape = new EdgeShape();
sideShape.set(new Vec2(width,height));
sideShape.m_vertex0.set(width,-height);
sideShape.m_vertex3.set(width,height * 2);
sideShape.m_hasvertex0 = true;
sideShape.m_hasvertex3 = true;
sideShape.seTradius(0.01f);
blockFixture.shape = sideShape;
body.createFixture(blockFixture);
sideShape = new EdgeShape();
sideShape.set(new Vec2(width,height),new Vec2(0,height));
sideShape.m_vertex0.set(width * 2,height);
sideShape.m_vertex3.set(-width,height);
sideShape.m_hasvertex0 = true;
sideShape.m_hasvertex3 = true;
sideShape.seTradius(0.01f);
blockFixture.shape = sideShape;
body.createFixture(blockFixture);
sideShape = new EdgeShape();
sideShape.set(new Vec2(0.0f,new Vec2(0.0f,0.0f));
sideShape.m_vertex0.set(0.0f,height * 2);
sideShape.m_vertex3.set(0.0f,-height);
sideShape.m_hasvertex0 = true;
sideShape.m_hasvertex3 = true;
sideShape.seTradius(0.01f);
blockFixture.shape = sideShape;
body.createFixture(blockFixture);
body.setTransform(new Vec2(x,y),0.0f);

发生的情况的图像：

有人知道如何解决吗？

（编辑）我取消了球上的固定旋转并添加了角度阻尼，这是固定它的最佳简便方法。

解决方法

您可以通过ballBody.setFixedRotation(false);来解决此问题或完全删除该语句。