Lazuli
Lazuli is a personal library mod made to make modding a little less tedious.
This library is the culmination of all the foundational and API code that I wrote for my mods. I started to dislike having to rewrite it all every time, so I decided that it's time to make Yet Another Library Mod.
You're welcome modpackers, now you'll have one extra mod to pad your mod counts with to make your modpacks look larger than they are :3
"Features"
Lazuli ultimately boils down to tons of helper functions, and there are quite a lot of them at that. Here are the "highlights" or "interesting" things (I guess).
- Blocks
- Generic "block with entity" helpers (
AbstractBlockWithEntity) - Energy-capable BE helpers (
IEnergyBE,AbstractEnergyBE,AbstractCapacitorBE,AbstractGeneratorBE) - Inventory-capable BE helpers (
IInventoryBE,AbstractInventoryBE) - Fluid-capable BE helpers (
IFluidBE,AbstractSingleTankBE) - "Zoned" block entities, ripped from Minefactorial (
IZonedBE)
- Generic "block with entity" helpers (
- Client Things
- Particle helpers
- A 2D particle engine for GUIs or wherever else you want to use them (
IParticleEngine2D,ScreenParticleEngine2D) - Screen Helpers
- Crafting
- Ingredients/outputs for in-world blocks, entities, item entities, and fluids
- Collections (a more flexible
WeightedRandomListimplementation,HistoryList) - Colours (
UnpackedColour,ColourPalette) - Energy (
LazuliEnergyStorage,ProtectiveEnergyStorage) - Fluids
- Inventories (
ContainerUtils,RoundRobinInventory,GhostStackHandler) - Items (
GhostItemStack) - Mathematics (
CubicBezier,QuadraticBezier) - Menus (
AbstractBlockEntityContainer,GhostSlot,SlotOutputOnly) - Misc helpers (
TickScheduler) - World helpers (
AABBHelpers,FakePlayerHelpers,Raycasting)
Usage
Lazuli is extensively documented using Javadocs. I also publish source and Javadoc JARs for you to include via Gradle.
To add Lazuli to your project, just add it as a modImplementation in Gradle:
// Applies to all Gradle plugins
repositories {
// Modrinth maven is the easiest and most reliable place for me to publish at the moment.
// I publish sources and JavaDocs here too.
exclusiveContent {
forRepository {
maven("https://api.modrinth.com/maven")
}
filter {
includeGroup("maven.modrinth")
}
}
}
dependencies {
// Loom and Architectury Loom
modImplementation("maven.modrinth:lazuli:VERSION")
}
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as lazuli-0.1.1+1.21.1.jar — drop this file into the mods folder
- Download size: 137 KB
- Download link checked 7 Sept 2026 — working
These come from our own check of the pack file, not from the source page.
