Cerulean

Cerulean modification is designed to significantly improve the performance of the achievement checking system in Minecraft. The main focus is on eliminating problems with the slow operation of the InventoryChangeTrigger, which often causes severe lags in modpacks with a large number of custom achievements.

This is an updated version of the Icterine mod, adapted for modern game versions and expanded with new features. In addition to supporting version 1.21.1, Cerulean provides a function for periodic achievement processing - the system can check achievement conditions not every tick, but at certain intervals. This approach was used in modifications like Achievements Optimizer, which are incompatible with the original Icterine.

Optimization features:

• Intelligent processing: when a player picks up an item for the first time, achievement check is performed immediately
• Prevention of delays: no situations where achievements "hang" until items are moved
• Server-side implementation: all changes work on the server side

Important features:

• Main optimization concerns item acquisition triggers
• May violate full compatibility with vanilla mechanics but does not affect standard achievements
• Most mods and datapacks will continue to work correctly
• If problems occur, the achievement can be obtained by simply dropping and picking up the required item
• Currently no incompatibilities or issues have been identified
• All changes to vanilla code can be disabled through the configuration file