Furnace Keeps Adding Buckets?

Started by Beech11901 on

Topic category: Help with Minecraft modding (Java Edition)

Joined Jun 2025
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Furnace Keeps Adding Buckets?

Hey everyone,

Been noticing I have been having an issue with a mod that I have been developing over the last month. Basically, I have a "custom furnace" that smelts a specific fuel source, "Etherium." This is a fluid block fuel source that can be placed into a bucket and then added to the custom furnace which acts like a more powerful lava.

The apparent issue I seem to be having is that when I go to get the number of items from slot 2 (which is the fuel slot for my furnace) and I set it to <1 it will then add a Bucket to slot 2 which is good. However, the minute I take the inventory out of slot 2 (the 1 empty bucket) it immediately wants to place another empty bucket within the empty slot 2. I know this must be a simple fix, but I've tried everything to make it so that the furnace only outputs 1 bucket and 1 bucket only similar to how vanilla furnaces work when placing a Lava Bucket in it.

To summarize what I'm trying to say is, how do I get my custom furnace to only output 1 empty bucket back into the fuel slot after the "fuel bucket" is placed into the fuel slot?