MysticalLib

MysticalLib is a library mod that takes the hassle out of common modding tasks. You install it when another mod lists it as a dependency.

It provides helpers for item and block registration, a structure definition system, world generation utilities with random rotation and mirroring of structures, tile entity syncing, a custom particle and visual effect system, and baked models that avoid almost all JSON. Runs on Forge, Minecraft 1.12.2 - 1.15.2.

When a mod on your Minecraft server needs it, the panel adds this dependency in one click.