Restructuring renderpasses

src/Engine/UI/RenderHierarchy.h

@@ -12,16 +12,27 @@ public:
     RenderElement();
     virtual ~RenderElement();
 private:
+    uint32 hierarchyIndex;
+    RenderElement* parent;
     PElement referencedElement;
     Gfx::PRenderCommand renderCommand;
     friend class RenderHierarchy;
 };
+
+struct RenderHierarchyUpdate
+{};
+DEFINE_REF(RenderHierarchyUpdate)
+
+
 class RenderHierarchy
 {
 public:
     RenderHierarchy();
     ~RenderHierarchy();
+    
 private:
+    void updateHierarchyIndices();
+
     // List of all drawable elements in draw order
     Array<RenderElement> drawElements;
 };