question: get the user data that was assigned in the fixture definition . use this to store your application specific data . concode_field_sep boolean m_isSensor concode_elem_sep Shape m_shape concode_elem_sep Object m_userData concode_elem_sep float m_density concode_elem_sep Fixture m_next concode_elem_sep float m_restitution concode_elem_sep AABB pool1 concode_elem_sep float m_friction concode_elem_sep Filter m_filter concode_elem_sep FixtureProxy[] m_proxies concode_elem_sep int m_proxyCount concode_elem_sep Vec2 displacement concode_elem_sep Body m_body concode_elem_sep AABB pool2 concode_field_sep float getRestitution concode_elem_sep Shape getShape concode_elem_sep AABB getAABB concode_elem_sep boolean testPoint concode_elem_sep boolean raycast concode_elem_sep void createProxies concode_elem_sep void setFilterData concode_elem_sep void refilter concode_elem_sep void destroyProxies concode_elem_sep float computeDistance concode_elem_sep void create concode_elem_sep void setFriction concode_elem_sep void getMassData concode_elem_sep float getFriction concode_elem_sep Filter getFilterData concode_elem_sep void synchronize concode_elem_sep Body getBody concode_elem_sep boolean isSensor concode_elem_sep void destroy concode_elem_sep Fixture getNext concode_elem_sep float getDensity concode_elem_sep void setDensity concode_elem_sep void setSensor concode_elem_sep void setRestitution concode_elem_sep ShapeType getType concode_elem_sep void setUserData
target: Object function ( ) { return m_userData ; }