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furnaces (all 3 types) only accepting smeltable items

Furnaces should only accept smeltable items by hopper and manual input.

Smokers only accept food items in the "upper slot" and the blast furnace only accept the items it can smelt (like ores).

The advantage here is less confusion about what's smeltable, less clogging in furnaces arrays and the ability to filter non-smeltable items from the smeltable ones (which are then smelted).

For map-makers, this way of hiding items should not be removed, that's why it should stay that you can get items (also non-smeltable ones) into the smelt-slot via commands. Furthermore, the old furnaces with non-smeltable items in the smelting-slot just stay like that.

With this being a quite low effort to implement* without changing the core mechanics of the game, I can't see why it shouldn't be implemented.

 

*(This feature already exists for the fuel-slot, so it's "just" copy-paste plus adjusting)

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  • 6
    Registered User commented
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    Yes, I just want to clarify that this feature is highly required for any HOPPER BELT CONVEYOR!

    →　Being able to filter out smelt-able items first in ANY type of farm is of very very high value.

    Current problem: When you add smelter/furnace to your hopper chain, it immediately gets blocked because items that can't be smelted fall in.

     

    (This really needs all the upvotes it can get)

     

     

  • 4
    Registered User commented
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    Items that the furnace can't smelt should go into the top slot, then get rejected and go into a hopper below if there is one.
    If there isn't one, the item will never enter the furnace.

  • 1
    Registered User commented
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    Onidotmoe - Changing the hopper and furnace interaction to work the way you described is not feasible IMHO (from a programmers standpoint it's possible but with to many changes and downstream effects I think. The furnace shouldn't suddenly need information from blocks around it that can influence it's behavior. In this context only hoppers do that, but no block they interact with do that by themselves (chests, barrels, etc.)).

    If, on the other hand, the furnace would get a second output slot where it'd immediately put non smelt-able items from the input slot, a hopper below the furnace could pull smelted items and the non smelt-ables from it.

    But my preferred option is a whole other deal:

    Change the furnace so that if it is powered directly (redstone repeater or direct line of redstone dust) the input hoppers get switched -> Fuel from above and smelt-able items from any side. Plus of course the input slot not accepting non smelt-able items and neighboring hoppers not being disabled by the powered furnace (this change might not be a good idea).

    This way the furnace could actually be used as (possibly very slow) filter for non smelt-able items.


    Or don't change the furnace at all and just allow item frames to turn hoppers into filters -> [<insert link to other feedback request here>]

  • 1
    Registered User commented
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    I think this should be implemented as well. This already exists for brewing stands, where it only accepts water bottles or potions. This would greatly increase the efficiency of furnaces, make sorting items a ton easier, etc. PLEASE implement this!!

  • 1
    Registered User commented
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    I can't put tools or armor in a bookshelf why can I put things that just block the furnace in the furnace.  If a smeltable item enters the top slot it should smelt, non smeltable or "cookable" shouldn't be allowed to enter. 

  • 0
    Registered User commented
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    Mojang, if you see this, please add this in an upcoming update. This will be great for item sorter contraptions