Box2d Box2d Box2d Box2d Box2d Box2d Box2d Box2d Box2d Box2d center contains contains contains contains deflate deflate deflate deflate deflate empty get get get height inflate inflate inflate inflate inflate intersectWith intersectWith isEmpty isEmptyMinus isEqualTo isIntersect isNormalized isNull kIdentity leftBottom leftTop normalize offset offset offset operator & operator &= operator!= operator* operator* operator*= operator*= operator+ operator+ operator+= operator+= operator- operator- operator-= operator-= operator/ operator/= operator== operator| operator|= rightBottom rightTop scaleBy set set set set set set size swapTopBottom unionWith unionWith unionWith unionWith width xmax xmin ymax ymin

contains() [3/4] bool Box2d::contains ( const Box2d &  box ) const 判断一个矩形框是否在本矩形框内，闭区间 判断是在本矩形框内或和本矩形框的边有重合。 这两个矩形框必须规范化。 参数 box 另一个矩形框 返回 如果在本矩形框内或有重合，则返回true，否则返回false