Mob Settings

New features

• Per-dimension spawn rules: addSpawns and removeSpawns now take a dimension after the entity, so the same biome can be configured differently in each dimension (e.g. a modded dimension that reuses vanilla biomes).
  • Format: entity_id|dimension_id|biome|weight|min_group|max_group and entity_id|dimension_id|biome or entity_id|dimension_id|biome|percent.
  • Use * as the dimension for every dimension. Old lines without a dimension still work and apply to every dimension; the config screen upgrades them when you edit them.
  • Example: minecraft:blaze|minecraft:the_nether|minecraft:nether_wastes|10|1|3
• Biome tags: anywhere a biome is asked for, a biome tag works too, e.g. #minecraft:is_nether or #c:is_forest. The config screen lists the available tags after the biomes.

Changes

• Remove runs before add: removeSpawns now runs before addSpawns, so your own added spawns are never removed. *|*|* plus a few addSpawns lines leaves only those mobs spawning. removeDrops already ran before extraDrops; both are now listed in that order in the config file and screen, with comments explaining it.
• Rules for every dimension are applied first; rules for one dimension are applied on top of them, removing before adding as well.
• A line for a specific mob now wins over a * line in attributeOverrides (same attribute) and despawnRanges, regardless of order.
• Invalid config entries are logged as a warning with the reason, instead of being skipped silently.
• Config rules are parsed once per config load instead of on every drop, spawn and despawn check.
• The entry editor fits rules with many fields on smaller screens.

Fixes

• Raising minecraft:max_health with attributeOverrides now spawns mobs at full health instead of their old maximum (e.g. 20/40).

Notes

• Spawn rules for one dimension only apply to spawning after chunks generate, since a biome can be shared by several dimensions. Rules for every dimension (*) also affect animals placed during chunk generation.
• Spawn rules for every dimension don't affect structure spawns (fortresses, ocean monuments, witch huts, pillager outposts); rules for one dimension do. Neither affects spawner blocks.
• removeDrops also removes equipment and items a mob picked up.