Codex allows you to gain information and do quick calculations in a Satisfactory-style codex screen.

Currently, the mod is a proof of concept - but it is being actively developed.

I wouldn't consider it a replacement for Roughly Enough Items or Too Many Items - as those mods are more focused on the data part of the items.

Codex is more useful if you want to figure out what to do with an item, not how.

Codex will guide you through it's setup screen when you launch the game for the first time with the mod:

These data sources are from the data repository - and respect the license of the source.

The quickmath parser allows you to quickly evaluate arithmetic expressions. This is especially useful for technical minecrafters - as it allows you to calculate various things such as shulker box capacity/redstone tick math using built in functions.

The quickmath parser also supports:

• String Concatenation
• Boolean Evaluation

Functions

• stacksin(shulkers) = shulkers * 30
• shulkersof(stacks) = stacks / 30
• stacksof(items) = items / 64
• itemsof(stacks) = stacks * 64
• secsin(ticks) = ticks / 20
• ticksin(secs) = secs * 20

Constants

• STACK = 64
• SHULKER = 1920
• DAY = 72 * 24000
• HOUR = (72 * 24000) / 24
• MIN = (72 * 24000) / 24 / 60
• SEC = (72 * 24000) / 24 / 60 / 60
• MS = (72 * 24000) / 24 / 60 / 60 / 1000
• MC_DAY = 24000
• MC_HOUR = 24000 / 24
• MC_MIN = 24000 / 24 / 60
• MC_SEC = 24000 / 24 / 60 / 60
• MC_MS = 24000 / 24 / 60 / 60 / 1000

The quicksearch functionality allows you to quickly search for items - you can scroll the searchbar by dragging outside the list or using your scrollwheel.

Clicking on a search element opens it's codex page.

Item descriptions are from the sources you chose during codex setup.

Want to add support for your mod? Check out the data repository which stores all the item descriptions and other miscelaneous content.

PS: The mod is All Rights Reserved currently as I do not see it fit for contributions. The data branch of the repository though is licensed by-file, not entirely as a whole. Please see _index.json for licensing of sources.