Changelog

[2.5.9] - Bug Fix Release

This release focuses on fixing the preset system and config persistence issues reported in Issue #10.

🐛 Bug Fixes

Preset toggle no longer breaks mob stats

Previously, disabling the mob preset system (or setting all multipliers to 1.0) could cause mobs to spawn with double or triple their intended health. This happened because old stat modifiers were being saved to the mob's data and never properly cleaned up when presets were turned off.

Config changes now save and load correctly

Filters (mob, mod ID, and dimension) and preset mappings were using a data structure that the config library couldn't write back to. This meant any changes made to these lists including resetting to defaults would silently revert the next time the game launched. All affected fields have been fixed to use a compatible structure.

Mobs from previous sessions are now corrected on startup

When a server restarts, all loaded mobs are now re-evaluated against the current config. This ensures that mobs carrying leftover stat boosts from an older config (e.g., before disabling presets) get cleaned up automatically rather than keeping inflated stats forever.

Disabling the mod now properly removes all stat boosts

When the mod is disabled in config, mobs that had already been buffed will now have those bonuses removed. Previously, disabling the mod only prevented new buffs from being applied existing ones stayed.

⚙️ Technical Details

• Fixed immutable list fields in BuffMobsConfig (mobFilter, modidFilter, dimensionFilter, mobPresets.mobMapping) that prevented the Jankson config serializer from saving user changes
• Added removeAllModifiers() to properly strip all mod-applied attribute modifiers from a mob
• Attribute modifier methods now always remove any existing modifier before deciding whether to apply a new one, preventing stacked modifiers from persisting across restarts
• MobTickHandler now performs a forced re-evaluation of all existing mobs on server start (forceReapply = true), ensuring stale NBT data from previous sessions is overwritten
• Simplified multiplier calculation logic that was incorrectly short-circuiting to 1.0 for presets with base multiplier ≤ 1.0, leaving old modifiers untouched