In my mod I'm dealing with some custom chests and, for the item rendering, I came across the BlockEntityWithoutLevelRenderer to render the item model of the chest inside the inventory.
Now, everything works, but I've noticed that I have to call an instance of this class in the custom chest item, like so
 

@Override
public void initializeClient(final @NotNull Consumer<IClientItemExtensions> consumer) {
  consumer.accept(new IClientItemExtensions() {
    @Override
      public BlockEntityWithoutLevelRenderer getCustomRenderer() {
      return MineWorld.getItemsRenderer();
    }
  });
}

where the MineWorld.getItemsRenderer is a method that returns a new instance of my custom BEWLR class, or an existing one if it has been already initialized.
What got my attention is that if I want to add another item with a custom model I have to add this same method in that item class as well. Is this the optimal approach or there's a better, centralized one? Maybe one that would also prevent me from registering a custom item for the chest, and instead checks for the actual chest block item?

18 hours ago, JimiIT92 said:

What got my attention is that if I want to add another item with a custom model I have to add this same method in that item class as well. Is this the optimal approach or there's a better, centralized one?

Basically, a subtype of the Item class.

Yeah, but that would work if every item that I need to render in a certain way in the inventory are direct childs of Item. If I have some items that extend another vanilla item class (for example something that extends TridentItem to make some spears) I have to specify that code inside the custom trident item class as well 😅

Not much you can do there other than just create anonymous classes.