MCF: EntityMap

Each entity can be registered to a storage path, and several paths can hold the same entity at once. Values are read and changed through provided functions that work much like JCF maps, and the mod resolves entity UUIDs automatically, so a datapack author does not handle UUIDs directly. Data is synchronized between server and clients. Direct storage manipulation is required for any extra output, since getters and storage locations are accessed and modified internally by the library.

The data pack ships under the mcfentitymap namespace. Authors who build on it can change that namespace to match their own project, with a plain search-and-replace of the mcfentitymap instances. The mod is a server-required, client-optional library: the server must run it, while players may leave it out. Files cover 26.1 – 26.1.2 for Fabric, Forge, NeoForge and Quilt, and the code is open source under the MIT License.