JustEnoughIDs
JustEnoughIDs is a lightweight modification module that removes ID limitations for blocks, items, biomes, potions, and enchantments. This is achieved by implementing the chunk format from version 1.13 in the Minecraft 1.12 environment.
Main Features
The mod uses a blockstate palette when saving chunks to NBT format and replaces the byte biome array with an integer array. This ensures high compatibility with other modifications, though any discovered issues should be reported to the bug tracking system.
Unlike NotEnoughIDs, this module supports proper mod removal without corrupting worlds created with them.
Important Information
Extremely important: Removing JustEnoughIDs will make your world unloadable. This is equivalent to trying to open a world from version 1.13 in Minecraft 1.12. Also note that JustEnoughIDs cannot load worlds created with NotEnoughIDs.
Frequently Asked Questions
Compatibility with Other Mods
Currently, JustEnoughIDs is incompatible with The Lost Cities mod, but this issue should be resolved in the next release.
Due to how the biome array works in version 1.12, some modifications may require special support. For example, the F3 interface might display "Mod doesn't support extended biome IDs -- Report to JEID" or commands may work incorrectly. Modified world generation is supported, so biome ID shifts in your worlds will not occur.
Compatibility with Existing Worlds
Yes, your old worlds will work. Chunks will be automatically updated to the 1.13 format as they are loaded.
Converting Worlds from NEID
There is currently no way to convert worlds from NotEnoughIDs to JustEnoughIDs. However, both mods can be used simultaneously. In this case, the block and item limit expansion functions from JustEnoughIDs will be disabled, handing control to NotEnoughIDs, while only the biome limit fix remains active.
Risk of World Corruption
No, this mod implements NotEnoughIDs functionality correctly. The fact that NotEnoughIDs failed to provide a safe system for expanding ID limits doesn't mean it's fundamentally impossible. Mojang developers successfully implemented this in version 1.13, and this mod simply backports these chunk format capabilities to version 1.12.
