Public Access
121 lines
5.3 KiB
Markdown
121 lines
5.3 KiB
Markdown
# Rivencraft
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Rivencraft is a clean, incremental port of the ideas and gameplay of
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[Mystcraft Legacy](https://github.com/Mystcraft/Mystcraft-Legacy) to Minecraft
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1.21.1 on NeoForge.
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The bootstrap and books/linking milestones are complete. The project currently
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provides functional Linking Books and randomly seeded, persistent vanilla-like
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Ages created from page-free Descriptive Books. Symbols, instability, and the
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full writing mechanics have not been ported yet.
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## Linking Book
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Craft a Linking Book from a vanilla book and an ender pearl, then use it in the
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air. An unbound book opens a screen where it can be named and bound to the
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current location. A bound book opens its destination screen and travels when
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its preview panel is clicked. The destination is stored on the item and
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survives inventory and world saves. Travel only succeeds if the target
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dimension is loaded and a non-fluid, passable landing position can be found
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nearby.
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Successful book travel plays Mystcraft Legacy's original linking sound at both
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the departure and arrival locations.
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Right-click an empty vanilla lectern with a Rivencraft book to convert it into
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a Book Stand and place the book on it. Use a Linking Book on the stand by
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right-clicking with an empty hand. Sneak-right-click with an empty hand to take
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the book back and restore the vanilla lectern. Breaking a Book Stand drops both
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the stored book and a vanilla lectern.
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Bound Linking Books show a rotating Ponder snapshot when Create is installed.
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Without Create, they use a built-in animated linking panel tinted by the
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destination sky. The server independently validates every link.
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## Descriptive Book
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Open a page-free Descriptive Book, name its Age, and press Create. Rivencraft
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assigns the book a permanent Age UUID, selects a deterministic base terrain,
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creates a dedicated runtime dimension, and prepares a five-by-five cobblestone
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arrival platform at the
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highest suitable nearby terrain. Solid blocks and tree leaves are valid
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footing. Candidate columns are scanned from the top down so cave floors are not
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selected, and fluid-covered columns are excluded. If no suitable surface is
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available, the platform is generated at Y=63. Reopen the book and click its preview to travel.
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The book cannot reopen while its Age is being generated, whether held or on a
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Book Stand. Once creation finishes, reopening shows the written book.
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Copies of the written book continue to resolve to the same persistent Age
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across server restarts.
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New Age dimension folders use a Minecraft-safe lowercase form of the assigned
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name. Conflicts receive incrementing suffixes such as `_2` and `_3`; existing
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Age folders are never renamed.
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Page-free Ages deterministically select one of six base terrains inspired by
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Mystcraft Legacy: Standard, Amplified, Island, Cave, Flat, or Void. The chosen
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profile is saved with the Age and does not change when the server restarts.
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Linking creates a bound Return Link to the exact source position and orientation
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according to the configured Return Link policy.
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Server owners can set `descriptive_books.return_link_mode` in Rivencraft's
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server config to `ON_CREATION` (default), `ALWAYS`, or `DISABLED`.
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## Requirements
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- A Java 21 JDK
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- Minecraft 1.21.1
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- NeoForge 21.1.251 or newer in the 21.1 line
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- Dynamic Dimensions AR Edition 0.9.1 and Bad Packets 0.8.2 (client and server)
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Create is optional. When installed, Rivencraft uses its Ponder renderer for
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book previews when Immersive Portals is absent. Immersive Portals is also
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optional and takes priority in the default `AUTO` mode, providing a live
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rotating destination view. Its Explore button enables WASD and jump/sneak
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camera movement plus left-drag camera look; right-click returns to the rotating
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view. Without either integration, Rivencraft uses its built-in animated linking
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panel. Clients can set `book_preview.mode` in
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`rivencraft-client.toml` to `AUTO`, `IMMERSIVE_PORTALS`, `PONDER`, or `LEGACY`.
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Unavailable optional renderers safely fall back to `LEGACY`.
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The complete backend matrix, supported combinations, cleanup behavior, and
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known upstream limits are documented in
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[docs/PREVIEW_COMPATIBILITY.md](docs/PREVIEW_COMPATIBILITY.md).
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## Build and run
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```shell
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./gradlew build
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./gradlew runClient
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```
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The built mod is written to `build/libs/`.
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## Versioning
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Rivencraft versions use `x.y.z.b`:
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- `x` changes for a major public release.
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- `y` changes when a development milestone is completed.
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- `z` changes for each release slice within the current milestone.
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- `b` changes for bug fixes and additional work within that release slice.
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The build component resets to zero when a new release slice begins. Completing
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a milestone increments `y` and resets both `z` and `b` to zero. For example,
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milestone 2 development can progress from `0.1.1.0` to `0.1.1.1`, then
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`0.1.2.0`; completing the milestone produces `0.2.0.0`.
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## Porting approach
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Mystcraft Legacy targets Forge for Minecraft 1.12.2. Rivencraft therefore
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ports one subsystem at a time onto current registries, codecs, data packs, and
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NeoForge APIs instead of importing the legacy source tree wholesale.
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See [docs/PORTING.md](docs/PORTING.md) for the roadmap, live Gitea tracking
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links, architectural direction, and provenance rules.
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## License
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Rivencraft is licensed under LGPL-3.0-or-later. Mystcraft Legacy is also
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LGPL-3.0; copied or adapted upstream code must retain its copyright and license
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notices. See [LICENSE](LICENSE) and [NOTICE](NOTICE).
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