Refraction
Refraction is an API for general use purposes.
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Refraction

Refraction Library was made for commonly used code between multiple projects & includes many useful methods to make adding features such as cutscenes easier to implement and to make the overall development process easier.
Refraction was made by ConnorTron110 & ConnorTron110.

All big things that Refraction offers:
- ReConfig—Config system with auto syncing support
- Atda—Persistent data storage system
- Syncables—Server → Client class syncing capability
- Channels—Custom data channels between server and client w/ headers
- NamedAPI—Extension of Channels for named API channel schemes
- Runnabler—Handler for delayed and ticking runnables on client / server
- RefractionEvents—Event system with multiloader support
- VoxelUtils—Voxel generation utilities
- Particler—Particle wrapper with render and tick manipulation
- RAABB—Allows for non-axis aligned boxes with collision
- Cutscenes—Customizable cutscenes through code (future command support)
- Custom debuggers—Similar to Minecraft's system of debugging, Refraction has custom debug support
- Interactions—NPC Interaction handler
- Quests—Quest handler system, doesn't offer quest stacking by default (future change)
- Server Screens—Full server side control of screens without extra packets including closing, opening and sharing data between client ↔ server
- Registrable tracking sounds—Ticking sounds that can be registered on the client and called from the server
- Flood Filler—Highly customizable flood filler
- Camera shake—Provides a camera shake interface
- SyncConfig—Automatic syncing for player joins
- Vec3Helper—A lot of vec3 util
And a lot more, just take a look for yourself, mainly in @helper and @feature dirs :D