add getChildrenExt

Author: dankmeme01

loader/include/Geode/cocos/base_nodes/CCNode.h

@@ -44,6 +44,11 @@ namespace geode {
     class Layout;
     class LayoutOptions;
     enum class Anchor;
+
+    template <typename T>
+    struct CCArrayExtCheck {
+        using type = void;
+    };
 }
 
 NS_CC_BEGIN
@@ -635,6 +640,21 @@ class CC_DLL CCNode : public CCObject
      */
     virtual CCArray* getChildren();
 
+    /*
+     * Like `getChildren()`, but returns a `CCArrayExt<CCNode>` instead.
+     * You must include `<Geode/utils/cocos.hpp>` to use this, otherwise it won't compile
+    */
+    template <typename PleaseDontChangeMe = CCNode>
+    inline auto getChildrenExt() {
+        // CCArrayExt is defined in geode/utils/cocos.hpp, which we cannot include due to circular includes.
+        // This is an incredibly hacky way to still be able to use the type
+        
+        using CCArrayExt = geode::CCArrayExtCheck<PleaseDontChangeMe>::type;
+        static_assert(!std::is_void_v<CCArrayExt>, "Please include <Geode/utils/cocos.hpp> to use getChildrenExt()");
+
+        return CCArrayExt(getChildren());
+    }
+
     /**
      * Get the amount of children.
      *

loader/include/Geode/utils/cocos.hpp

@@ -1642,3 +1642,8 @@ namespace geode::cocos {
      */
     void GEODE_DLL handleTouchPriority(cocos2d::CCNode* node, bool force = false);
 }
+
+template <>
+struct ::geode::CCArrayExtCheck<cocos2d::CCNode> {
+    using type = cocos::CCArrayExt<cocos2d::CCNode>;
+};