Nice Mob Scaling

If you are using the data pack on a PaperMC Server (or a PaperMC Fork like Purpur) make sure to set allow-non-player-entities-on-scoreboards in your paper config files to true and to include the assets file included in the data pack version to your server side resource pack in order to make everything work.

If you are using the data pack version you can simply customize which mobs can either only shrink/grow in size or which can do both or neither. All you have to do is to add or remove the mob type in the tag lists listed below:

/data/eden/tags/entity_type/valid_for_any_scaling.json
/data/eden/tags/entity_type/valid_for_enlarging.json
/data/eden/tags/entity_type/valid_for_shrinking.json

Customizing min/max values for shrinking mobs:

/function mob_scaling:gamerule/range/shrink {min:<value>,max:<value>}

Customizing min/max values for enlarging mobs:

/function mob_scaling:gamerule/range/enlarge {min:<value>,max:<value>}

(Mobs valid for any scaling use the shrink min and enlarge max value)

En-/Disable if mobs need to see the sky for scaling:

/function mob_scaling:gamerule/condition/need_to_see_sky

Restore default settings:

/function mob_scaling:gamerule/default_settings