![](https://github.com/KyleKreuter/vistructum/blob/main/docs/logo.png)

Detects swastikas that players build from blocks on Paper servers and reports them to staff for review.

## What it does Vistructum watches block changes and scans whole worlds with two small neural networks. When it finds a swastika, it stores a **finding** and alerts staff in chat. Staff review the finding in a menu and mark it as confirmed or as a false alarm. Vistructum never kicks, bans, or rolls back on its own. Every decision stays with your staff. ## Features - **Live check:** Detects symbols shortly after players finish building them, including rotated, mirrored, irregular, and carved variants from 5×5 blocks upward. - **Fullscan:** Scans whole worlds daily or on demand, including the Nether and the End, with a progress bar for staff. It checks the surface and also finds symbols built underground or hidden inside terrain. - **Review menu:** Lists open findings with preview images. The detail view shows the scene, the builder's face, location, probability, and source. - **Chat alerts:** Staff get a message with **[Open]** and **[TP]** buttons for every new finding. - **Local or remote inference:** Runs the models inside the server process, or on a separate sidecar with a local fallback. - **Model updates:** Downloads new models from GitHub Releases automatically. - **Plugin API:** Query findings, submit reviews, start scans, and listen to events from your own plugin. - **Stateless design:** All state lives in SQLite. After a restart, running scans continue where they stopped. ## Modes - **Live check:** The core records every placed and broken block in SQLite. Every few seconds it groups nearby changes into clusters. A cluster that has been quiet for `tracking.quiet-seconds` becomes a mask and goes to the mask model. - **Fullscan:** The scanner reads the region files directly, without loading chunks on the server, and walks the world in 256×256 tiles. For each tile, it runs two checks: - **Surface:** Samples the surface height and brightness and sends the tile to the fullscan model. - **Volume:** Finds clusters of blocks that are rare in their surroundings, keeps the flat or evenly extruded ones, and sends their outlines to the mask model. - **Findings:** Both paths hand detections to the same reporter. It removes duplicates, fires `FindingCreateEvent`, stores the finding, and fires `FindingCreatedEvent`. - **UI:** `vistructum-ui` uses only the public API. You can replace it with your own plugin. ## Requirements - Paper 1.21.4 - Java 21 ## Installation ### Plugin jars 1. Download `vistructum-.jar` and `vistructum-ui-.jar` from [Releases](https://github.com/KyleKreuter/vistructum/releases). 2. Copy both jars into `plugins/`. 3. Set `pack.public-url` in `plugins/vistructum-ui/config.yml` to an address your players can reach. The default `http://localhost:8765/pack.zip` works only on the machine that runs the server. 4. Restart the server. On the first start, Paper downloads SQLite JDBC and ONNX Runtime through the `libraries` entry in `plugin.yml`. ### Docker Compose ```bash docker compose build docker compose up -d server ``` The `server` service runs Paper 1.21.4 with both plugins, ViaVersion, and ViaBackwards. It exposes port 25565 for players and port 8765 for the resource pack. To run inference on a separate container, start the sidecar and set `inference.mode: remote`: ```bash docker compose up -d sidecar ``` ## Commands and permissions | Command | Description | |---|---| | `/vis`, `/vis review [count]` | Opens the review list | | `/vis show ` | Opens a finding | | `/vis status` | Shows the inference mode, loaded models, tracked changes, open findings, and running scans | | `/vis tp ` | Teleports to a finding | | `/vis confirm ` | Marks a finding as confirmed | | `/vis falsealarm ` | Marks a finding as a false alarm | | `/vis scan [world\|stop]` | Starts a fullscan or stops all scans | | Permission | Default | Grants | |---|---|---| | `vistructum.staff` | op | Chat alerts, list, detail view, and reviews | | `vistructum.admin` | op | `vistructum.staff` and `/vis scan` | ## Configuration | File | Content | |---|---| | `plugins/vistructum/config.yml` | Inference mode, model updates, sidecar address, live check timing, daily fullscan worlds and scan threads, retention | | `plugins/vistructum-ui/config.yml` | Resource pack port and public URL, map previews in the list | | `plugins/vistructum-ui/messages.yml` | All chat and menu texts in MiniMessage format | The [Configuration](https://github.com/KyleKreuter/vistructum/wiki/Configuration) wiki page describes every key. ## Usage statistics Vistructum sends anonymous usage data to [bStats](https://bstats.org/plugin/bukkit/Vistructum/34300): server and player counts, the inference mode, the model update setting, whether the daily scan is on, the number of scan worlds, and whether `vistructum-ui` runs. It sends no findings, reviews, or player names. To turn this off for all plugins, set `enabled: false` in `plugins/bStats/config.yml`. ## Plugin API Add `vistructum-api` as a `provided` dependency and declare `depend: [vistructum]` in your `plugin.yml`. ```java Vistructum.get().findings() .find(FindingQuery.open().world("world").limit(10)) .thenAccept(page -> page.items().forEach(finding -> staff.sendMessage("#" + finding.id()))); ``` Every future completes on the main thread. The [Plugin API](https://github.com/KyleKreuter/vistructum/wiki/Plugin-API) wiki page covers setup, threading, and events. ## Building ```bash mvn package ``` | Module | Output | |---|---| | `vistructum-api` | Public API, bundled into the core jar | | `vistructum-inference` | Model inference shared by the core and the sidecar | | `vistructum-core` | `vistructum-core/target/vistructum-.jar` | | `vistructum-ui` | `vistructum-ui/target/vistructum-ui-.jar` | | `vistructum-sidecar` | `vistructum-sidecar/target/vistructum-sidecar.jar` | `ml/` contains model training and the Python reference implementation. The plugins don't need Python at runtime. See [Building](https://github.com/KyleKreuter/vistructum/wiki/Building) for details. ## Contributing Read [Contributing](https://github.com/KyleKreuter/vistructum/wiki/Contributing) before you open a pull request. ## License Vistructum is licensed under the [GNU General Public License v3.0 only](LICENSE). You can use it on any server, including commercial ones. If you distribute a modified version, you must publish its source code under the same license.

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