LibNine

LibNine is a big ol' library mod that provides boilerplate functionality for other mods. In addition, it acts as a Kotlin language adapter from Minecraft 1.13 and on.

Core Features

• Expedient block and item registration systems
• Autonomous registry population system
• Capability management and default implementations
• GUI and container management and component system
• Parametric item model system
• Boilerplate tile entity implementations
• Autonomous NBT and byte stream serialization
• Networking abstraction and management system
• Custom recipe type loading and registration system
• Mathematical and functional programming utility set
• Reflection, rendering, world interaction, and other helper classes
• Null safety annotations
• Probably a bunch of other stuff I'm forgetting

While there's not meaningful documentation yet, the source code is available on Github.

Discord Support Server

libnine is a library that provides a bunch of boilerplate code for content mods to use. It mostly consists of various bits of code that I found useful in more than one project, which I then factored out into a shared library. Particularly notable features include:

• Automatic generation of NBT and byte stream serializers based on annotated fields
• Various prefab capability implementations
• A generic recipe registry system
• "Parametric item models" that can depend on nontrivial item stack state
• A GUI component system and corresponding sync code
• A huge pile of linear algebra nonsense

However, a lot of the code in this project is rather dated and the architecture is a little bit questionable. As such, I would not recommend depending on libnine for new modding projects.