Question

如何获得一个Node的BoundingBox

Answer 1

你试试这个代码Rect getBoundingBoxRecursive(Node *node, bool onlyTexture = true) { CCAssert(node != nullptr, "node can't be null"); Rect nodeRect = node->getBoundingBox(); nodeRect.origin = node->convertToWorldSpace(Vec2::ZERO); for_each(node->getChildren().begin(), node->getChildren().end(), [&](Node* subNode) { Rect subNodeRect; subNodeRect = getBoundingBoxRecursive(subNode); if (onlyTexture && nodeRect.size.equals(Size::ZERO)) { nodeRect.origin = subNodeRect.origin; } nodeRect.merge(subNodeRect); }); return nodeRect;} Vec2 getContentSizeRecursive(Node *node, bool onlyTexture = true) { return getBoundingBoxRecursive(node, onlyTexture).size;}