This is a OpenComputers fork on Scala 3 w/ Cleanroom. It was intended to be a proof of concept of porting Scala 2.11 mods to Scala 3 on the new platform, but a recent announcement from the old OpenComputers raise the need to maintain a fork of OC on 1.12.2 ecosystem. Like the GTNH fork in 1.7.10, this fork will be kept maintaining and will apply changes from upstream.

Note: When install with loliasm, remember to disable its BakedQuads Mixin, it is incompatible with newer Mixin shipped with latest Cleanroom!

Changes compare to original OC:

Ported to latest (by the time of editing) Scala 3 w/ Java 21
Fixed localization problem differently

Compatibility

Only Scala 3 mods can be installed with Scala 3 mods. Currently, it can't be installed with mods like Project Red, AE2 Stuff, SoulKeeper2, etc.

A plan of porting those Scala 2 mods to Scala 3 is going on.

As for add-ons, if they are made by Java, it should be fine.

Introduction of original OC:

This mod adds computers that can be programmed in Lua 5.2 and 5.3. Computers persist across saves (i.e. execution resumes where the computer was saved when it is loaded again), they are highly modular (there are graphics cards, network cards, redstone cards, …). If a compatible power generating mod is present, by default they will need power to run - however, like pretty much everything else about the mod, this can be changed in the config.

OpenComputers is designed to fit well with survival gameplay, and is played best in combination with other mods, which allow automating ore processing, and ideally crafting to some extent! Computers are not cheap to craft, so don't expect to build your first computer early when starting a new game. If you want an extra challenge, try the hard mode recipe set (see .minecraft/config/opencomputers/user.recipes for more information).

There are a lot of components in the mod that can be used to extend computers, such as motion sensors, holograms and there are also robots.

Inter-operation with many other mods is provided via the Adapter block (for example reading power information from energy cells and so on).

For more information, please visit the Wiki at http://ocdoc.cil.li/ where, aside from blocks and items in the mod, the built-in Lua APIs are documented as well, so you can read up what you can actually do with the computers. If you need additional support, browse the forums at http://oc.cil.li/ or drop by the IRC, channel #oc on esper.net, or join us on Discord.

FAQ about Cleanroom:

Q: What is Cleanroom?
A: Cleanroom is a 1.12.2 Forge fork, providing newer tool chain, new APIs and 99% compatibility. Our plan is to make 1.12.2 up-to-date with latest tool chain while adding more feature to Forge & vanilla, so we don't need to care about higher versions' X point release * Y Mod API headache.
Q: How to install Cleanroom?
A: Please follow the instructions in README.
Q: Can I include this in my Forge modpack? Will it crash my Forge pack?
A: Yes, you can, and it is safe! This mod won't be loaded or crash anything in a Forge environment.
Q: Performance advantage?
A: By porting the game to Java 21+ (up to 24 release), launch time of large modpacks can improve up to 50%. The new ZGC algorithm should reduce TPS shatters. We also update most of the librariese to latest version, which should introduce performance improvement and bugfixes.
Q: Change in mod development?
A: Mixin development get overhauled, and many minor APIs were added. Pull requests are welcomed.

Note: mod files marked as "Forge" because CurseForge doesn't support Cleanroom yet.

OpenComputers Rescaled