FactoryLib - Modding Utilities

by Marcel171297

Utility library for prototype manipulation, GUI building, and common helpers. Replacement for LSlib, built for Factorio 2.1.

Internal

11 days ago

2.1

source code

Download

Changelog

Version: 0.2.2
Date: 24. 06. 2026
  Bugfixes:
    - Added missing FLib.utils.table.convertRGBA function (converts color values from 0-255 to 0-1 range).
    - Fixed getLocalisedUnit to return Factorio localised strings (tables) instead of attempting string concatenation on table values.
    - Rewrote GUI layout and runtime systems with own implementation providing full path-based element navigation, drag support, auto-centering, and tab management.
  Changes:
    - All item/recipe/technology helper function signatures now match the original LSlib API exactly.

Version: 0.1.0
Date: 24. 06. 2026
  Features:
    - Initial release: utility library for Factorio 2.1 modding.
    - Item, recipe, technology, and entity prototype helpers.
    - Declarative GUI layout builder and runtime GUI management.
    - Direction utilities, string splitting, table helpers, and unit formatting.