💡 Comparator Hopper: a simple, natural filtering system for Minecraft

Summary:
Introducing a new variant of the hopper: the Comparator Hopper, designed to enable clean, compact, redstone-free item filtering, while staying true to Minecraft’s intuitive and logical mechanics.

Crafting Recipe

1 Hopper
2 Comparators

Result: Comparator Hopper

How it works

The Comparator Hopper behaves like a normal hopper but adds two comparison inputs:

1. Rear Comparison Input

Connects to any block with an inventory (chest, barrel, shulker box, etc.).
The items inside that inventory define which items the hopper will accept and insert into the container it points to.
If an item doesn’t match, the hopper won’t insert it.

2. Side Comparison Input (e.g., right side)

Connects to another block with an inventory.
The items inside that inventory define which items are allowed to pass downward through the hopper chain, without being inserted into the main output container.
This allows clean vertical sorting setups without redstone.

3. Default behavior (no side input)

If no inventory is connected to the side input, the hopper simply uses the rear input filter only.
In this mode, the hopper both inserts and passes the items specified in the rear inventory filter.

4. Basic behavior (no inputs at all)

If no inventories are connected to either input, the Comparator Hopper behaves exactly like a normal hopper.
It inserts and transfers items freely, with no filtering or restrictions.

Why it fits Minecraft

Reinforces emergent gameplay through experimentation.
No complex UIs or new block families.

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