Sable Beyond Dynamic Copycats Addon

The addon adds dynamic mass copycat blocks to Create: Copycats+. Each copycat block takes the mass of the material it copies, so a copycat built from iron weighs like iron and a wool copycat weighs like wool. Partially filled copycats count only the materials present, and a multi-material copycat is calculated from its parts. Mass rules can be changed in JSON files, which lets the mass data stay compatible with later Copycats+ additions.

The mod requires Create: Copycats+ and Sable Beyond. It runs on NeoForge for 1.21.1 only, and the server and every player need it, since the mass calculation affects physics on both sides. Custom mass multipliers can be enabled or disabled, and the copycat block's own mass can be included or excluded from the total. The project is open source under the GNU Affero General Public License v3.0 or later, and public links exist for its source code and issue tracker.