MineClone 2 makes very extensive use of groups. Making sure your items and objects are members of the correct group is a good and easy way to ensure compability without using any function calls.
This mod uses Mobs Redo [`mobs`] by TenPlus1, a very powerful mod for adding mods of various kinds.
There are minor modificiations for MineClone 2 compability and some items have been removed or moved to other mods, but the API is identical to the original.
You can add your own mobs, spawn eggs and spawning rules with this mod.
API documnetation is included in `mods/ENTITIES/mobs/api.txt`.