CC: Tweaked 1.110.3 for 1.20.5

[SquidDev]

Minecraft 1.20.6 is just around the corner, but I thought I'd sneak in just before with a release of CC: Tweaked for Minecraft 1.20.5.

A warning

While 1.20.5 is a minor update, it contains several major changes to Minecraft's internals. The most prominent of these is the move from item NBT to the more structured components, but there have also been changes to networking, registries, and all sorts of bits and bobs.

As with any update to a new Minecraft version, this release is alpha quality. There will be bugs (I spotted one minutes after releasing), crashes and possible data-loss.

As mentioned above, the biggest change here is the removal of item NBT. This will typically break most existing modded worlds. CC:T should convert across fine (with the exception of enchanted turtle tools), but I have not tested this thoroughly. Please report any issues you encounter.

Datapack changes

We've unfortunately had to make several breaking changes to the datapack format:

• Turtle upgrades are now loaded from data/*/computercraft/turtle_upgrade not ``data/*/computercraft/turtle_upgrades(note trailings`), and similarly for pocket upgrades.

• Turtle tools now require the adjective to be explicitly given. This can be any raw JSON text value. See CC:T's diamond pickaxe for an example.

API changes

Likewise, there have been several changes to the public API, mostly around upgrades.

• UpgradeSerialiser has been replaced with UpgradeType, which now parses upgrade JSON via a Codec.

  As part of this change, upgrades are no longer constructed with an ID (getUpgradeID has been removed), and should implement the getType method to return their corresponding UpgradeType.

• Upgrade data is now stored using components, rather than a unstructured NBT compound tag.

  • getUpgradeNBTData has been renamed to getUpgradeData.
  • updateUpgradeNBTData has been removed, and replaced with a setUpgradeData method, which accepts a new (immutable) set of components.

• Upgrade data generators now work by registering an instance of the upgrade, rather than constructing the JSON manually. See CC:T's pocket data generator for an example.

Feedback is very much welcome on all of these changes! I'm definitely not sure about the interface for upgrade data right now, so happy to refine that.

[SquidDev]

An update to this for 1.20.6: upgrade data providers have now been removed in favour of the built-in registry datagenerators (DatapackBuiltinEntriesProvider on NeoForge, FabricDynamicRegistryProvider on Fabric.