findFirstChildRecursive put inside utils because its very useful

loader/include/Geode/utils/cocos.hpp

@@ -168,6 +168,32 @@ namespace geode::cocos {
      */
     GEODE_DLL cocos2d::CCNode* getChildByTagRecursive(cocos2d::CCNode* node, int tag);
 
+    /**
+     *  Get first node that conforms to the predicate 
+     *  by traversing children recursively
+     * 
+     *  @param node Parent node
+     *  @param predicate Predicate used to evaluate nodes
+     * @return Child node if one is found, or null if 
+     * there is none
+     */
+    template <class Type = cocos2d::CCNode>
+    Type* findFirstChildRecursive(cocos2d::CCNode* node, std::function<bool(Type*)> predicate) {
+        if (predicate(node))return node;
+
+        auto children = node->getChildren();
+        if (!children) return nullptr;
+
+        for (int i = 0; i < children->count(); ++i) {
+            auto newParent = reinterpret_cast<cocos2d::CCNode*>(children->objectAtIndex(i));
+            auto child = findFirstChildRecursive(newParent, predicate);
+            if (child)
+                return child;
+        }
+
+        return nullptr;
+    }
+
     /**
      * Checks if a given file exists in CCFileUtils
      * search paths.