Box2DWeb - GetBody()不工作

Question

我需要获取fixture的主体，但是当我调用fixture.GetBody()函数时，它返回这个错误: Object #没有方法'GetBody'；

代码如下：

var bodyDef =新的b2BodyDef；

var bouncebodyDef = new b2BodyDef;

bouncebodyDef.type = b2Body.b2_dynamicBody;   

var bounceDef = new b2FixtureDef;
    bounceDef.density = 1;
    bounceDef.body = bouncebodyDef;
    bounceDef.friction = 1;
    bounceDef.restitution = 0;
    bounceDef.userData = 'bounce';

bounceDef.shape = new b2PolygonShape;
bounceDef.shape.SetAsBox(1.5, 0.1);
bouncebodyDef.position.Set(2, 12);
bouncebodyDef.angle = (3.4);
world.CreateBody(bouncebodyDef).CreateFixture(bounceDef);

console.log(bounceDef.GetBody());

谢谢你的建议。

Answer 1

b2FixtureDef没有getBody()，所以这就是错误的含义。这里链接了b2FixtureDef的文档。它看起来甚至没有可以设置的主体，就像在bounceDef.body = bouncebodyDef;行中那样