staticvoidInventorySlotsUpdated(ITCategorycat);//Called whenever an inventory item gets added to the player's inventory, thus increasing the total number of slots in our bag.
staticvoidAddInventoryListener(MenuComponent*component,ITCategorycategory);//Adds a component to be in a given listener category.
vf2dcenter();
//Returns the last menu type created and last registered component, in case a component is detected as memory leaking, provides this information to each component for safety.