Here’s all there is to WesternIcelander’s MagicHopper!

Core features

Forget expensive, bulky item sorters, you can simply place a sign to allow or block certain items from entering a hopper!

Allow items

This is done through a sign reading
[MH]
allow [item]
which only allows anything matching the [item] in. This accepts abbreviated item names, such as “cobble” for cobblestone. It just checks if what you have put as the item is in the name of the item that passes over it, eg. “allow sign” will allow any signs through, no matter their wood type.

Block items

Similarly, you can block items from entering a hopper by typing
[MH]
block [item]
which will allow everything but the items specified to pass through.

Stacking

Allow and block can be stacked for convenience.
[MH]
allow sign
block spruce
will allow all but spruce signs to enter the chest.
If you run out of room on one sign, you can place another sign on the same hopper to continue. Tests are ran from the top of the first sign to the bottom of the last sign.

Advanced features

Autodrop

[MH]
autodrop
when attached to a dropper will automatically drop items out of it without the need for a redstone clock. It doesn’t, however, apply to dispensers.

Compact

[MH]
compact
will compact all compactable items into blocks, eg. gold ingots into gold blocks. It’s helpful if you’re producing a lot of compactable farm output!

Count

[MH]
count
will count all items that pass through the hopper. Useful for checking how much your farm is outputting of each thing without having to count manually.

Fuelifempty

[MH]
fuelifempty
will only let fuel into a furnace if it’s currently empty.

Matchfurnace

[MH]
matchfurnace
will only let an item in if it is the same as the one currently in the furnace.

Skip

[MH]
skip [number]
will reject [number] attempts at accepting an item before taking it in. Very useful for multi-furnace arrays where you need to spread fuel equally.

Admin features

Duplicate

[MH]
duplicate
will duplicate a hopper’s contents into whatever you hook it up to, for example a dispenser! If you want to give things out, this prevents you from having to restock!