目前我像这样创建一个b2Fixture:b2PolygonShapespriteShape;intnum=3;b2Vec2verts[]={b2Vec2(-29.5f/PTM_RATIO,-49.0f/PTM_RATIO),b2Vec2(10.0f/PTM_RATIO,-49.0f/PTM_RATIO),b2Vec2(34.2f/PTM_RATIO,-9.2f/PTM_RATIO),};spriteShape.Set(verts,num);bodyFixture.shape=&spriteShape;bodyCharacter->CreateFixture(&bodyFixture);