🛡️ Meow Anti-Xray

Server-side anti-xray for Fabric and NeoForge survival servers.
⛏️ Paper-style ore obfuscation, 🚀 no client install, 🔌 one shared core across both loaders.

Meow Anti-Xray focuses on one job: bringing a Paper-like anti-xray experience to modded dedicated servers. Players join normally with a vanilla or modded client, while the server rewrites chunk packets before they are sent, hiding unexposed valuable blocks from xray clients.

This project was split from MeowConsole and now contains only anti-xray functionality. Console utilities, sleep features, player-message helpers, and unrelated tools were removed so the mod stays lightweight, focused, and easier to profile.

✨ Why Use Meow Anti-Xray

• 🚀 Server-side only: Install it on the server; players do not need to install anything.
• 🧭 Paper-style behavior: Uses an engine mode 2 inspired default setup and tracks Paper-style hidden blocks, replacement blocks, reveal updates, and neighbor refresh behavior.
• 🔌 Built for modded servers: Fabric and NeoForge share the same anti-xray core, keeping configuration and behavior aligned across loaders.
• 🧱 Safer decoys: Block entities such as chests and ender chests are excluded from fake ore candidates, reducing visual glitches and confusing client-side states.
• ⚡ Stable under exploration load: Async chunk packet rewriting uses bounded backpressure to avoid unbounded snapshot queues and memory spikes.
• 📊 Readable diagnostics: /antixray profile reports rewrite counts, timings, async capacity, queue pressure, and sync fallback activity so server owners can tune with real data.

🧩 Features

• 💎 Hides diamonds, ancient debris, redstone, lapis, gold, and other valuable blocks.
• 🪨 Replaces hidden blocks client-side with configurable decoy states.
• 🔍 Reveals nearby real blocks when players mine, start breaking blocks, or explosions modify terrain.
• 🌍 Supports separate settings for the Overworld, Nether, End, and custom dimensions.
• ⚙️ Supports per-dimension height ranges, hidden block lists, replacement block lists, and enable switches.
• 🔐 Supports permission bypass through paper.antixray.bypass or a custom permission node.
• 📣 Checks Modrinth for updates asynchronously and shows the latest status in /antixray status.

⚙️ Performance Model

The expensive part of anti-xray protection happens when players load new chunks. Meow Anti-Xray moves chunk packet rewriting away from the main thread when possible and limits queued async work with async-queue-size:

anti-xray: async-chunk-rewrite: true async-worker-threads: 1 async-queue-size: 16

The default favors memory safety. Servers with more memory or heavy exploration traffic can try 32 or 64, then use /antixray profile to watch for sync fallback and rewrite timings.

Paper can hook directly into vanilla chunk packet serialization. A Fabric / NeoForge mod has to keep enough snapshot data to rewrite packets safely across loaders. This project aims for Paper-style protection with an implementation tuned for the mod loader environment, not a line-by-line copy of Paper internals.

📈 Stress-Tested

Meow Anti-Xray has been tested with real exploration and heavy chunk-loading workloads. The numbers below come from local Fabric / NeoForge dev servers, spark profiler reports, and the project's network fake-player load runner. The goal was to verify stable chunk packet rewriting under real loading pressure.

Scenario Result 🧪 Fabric real single-player exploration Stable 20.00 TPS, median MSPT 3.31ms, with meowantixray taking about 3.55% in the server-thread mods view 🔥 NeoForge stress test with 8 network fake players 36,233 chunks processed in 91s, about 398.06 chunks/s, 0 client errors 🚀 Higher-throughput async queue test With async-queue-size=64, 38,037 chunks processed in 91s, about 417.92 chunks/s, 0 client errors

These tests show that the default configuration favors memory stability and prevents async rewrite work from growing into an unbounded queue during heavy exploration. Servers with more memory can raise async-queue-size to trade memory headroom for higher chunk throughput. Full spark reports:

• 🧪 Fabric real exploration: https://spark.lucko.me/btQdhJh1gH
• 🔥 NeoForge 8 fake players, conservative default queue: https://spark.lucko.me/yFi0jlgOf4
• 🚀 NeoForge 8 fake players, higher-throughput queue: https://spark.lucko.me/FyVDZTMgHb

🌍 Good Fit For

• 🧱 Fabric / NeoForge survival servers
• 🤝 Public, semi-public, and friend-group servers
• 🛡️ Servers that want strong anti-xray protection while staying in the modded ecosystem
• 🗺️ Pregenerated worlds, high-view-distance servers, frequent teleport routes, and active exploration
• 🐾 Servers migrating from the old MeowConsole built-in anti-xray module

Pregeneration or chunk preloading does not bypass this mod. It works when chunk packets are sent to player clients; it does not modify stored world data. Web maps and offline renderers that read real chunk data directly need their own hiding or rendering configuration.

🚀 Quick Start

1. Download the jar for your loader from Modrinth: use the Fabric file for Fabric servers and the NeoForge file for NeoForge servers.
2. Put the jar in the server mods folder.
3. Start the server once to generate:

config/meowantixray.yml

1. Tune hidden blocks, replacement blocks, height ranges, and async settings for your server.
2. Use /antixray reload to reload the config, then check /antixray status and /antixray profile.

🧰 Commands

/antixray status /antixray reload /antixray profile /antixray debug <world> <x> <y> <z>

🔗 Links

• GitHub: https://github.com/xiaoyiluck666/MeowAnti-Xray
• Issues: https://github.com/xiaoyiluck666/MeowAnti-Xray/issues
• Modrinth: https://modrinth.com/mod/meowanti-xray
• Original MeowConsole project: https://modrinth.com/mod/meowconsole

🛡️ Meow Anti-Xray

为 Fabric 与 NeoForge 生存服准备的服务端反矿透模组。
⛏️ Paper 风格矿物伪装，🚀 客户端零安装，🔌 双 Loader 共用同一套核心逻辑。

Meow Anti-Xray 专注解决一个问题：让 Mod 服务端也能拥有接近 Paper Anti-Xray 的矿物隐藏体验。玩家不需要安装客户端模组，服务端会在区块发送给客户端之前重写区块包，把未暴露的矿物伪装成普通方块，从源头降低矿透收益。

本项目从 MeowConsole 拆分而来，现在只保留反矿透相关能力。没有控制台工具、睡眠功能、玩家消息等额外模块，目标是更轻、更纯粹，也更容易排查性能。

✨ 为什么选择 Meow Anti-Xray

• 🚀 服务端安装即可生效：玩家无需安装任何客户端内容，适合公开服、好友服和整合包服务端。
• 🧭 Paper 风格体验：默认按接近 Paper engine mode 2 的方式隐藏矿物，并持续对齐 Paper 风格的默认隐藏方块、替换方块、显露更新和邻近刷新行为。
• 🔌 专为 Mod 服务端维护：Fabric 与 NeoForge 共用核心逻辑，尽量保持配置、行为和性能策略一致。
• 🧱 更安全的假矿处理：箱子、末影箱等方块实体不会被用作假矿候选，减少客户端显示异常和误导性画面。
• ⚡ 高压跑图更稳：异步区块包重写配合队列背压，避免大量区块快照无限堆积导致内存暴涨。
• 📊 性能可观察：/antixray profile 会显示重写次数、耗时、异步容量、排队压力和同步 fallback 情况，方便服主判断配置是否合适。

🧩 核心功能

• 💎 隐藏钻石、远古残骸、红石、青金石、金矿等高价值方块。
• 🪨 使用可配置的替换方块填充客户端视野，降低矿透可用信息。
• 🔍 玩家挖掘、开始破坏方块、爆炸改变地形时，会刷新附近真实方块。
• 🌍 支持主世界、下界、末地和自定义维度分别配置。
• ⚙️ 支持隐藏高度范围、隐藏方块列表、替换方块列表和维度开关。
• 🔐 支持权限绕过：可配置 paper.antixray.bypass 或自定义权限节点。
• 📣 启动时异步检查 Modrinth 新版本，并在 /antixray status 中显示当前状态。

⚙️ 性能设计

反矿透最重的工作发生在玩家加载新区块时。Meow Anti-Xray 会尽量把区块包重写放到后台线程，并通过 async-queue-size 限制待处理任务数量：

anti-xray: async-chunk-rewrite: true async-worker-threads: 1 async-queue-size: 16

默认值优先保证内存安全。服务器内存充足、玩家经常高速跑图或传送时，可以尝试把 async-queue-size 调到 32 或 64，再通过 /antixray profile 观察是否出现明显同步 fallback。

需要说明的是：Paper 可以在原生区块包序列化阶段直接接入；Fabric / NeoForge 模组层需要保留必要快照才能异步处理。因此本项目追求的是“Paper 风格效果 + 适合 Mod Loader 的高性能实现”，不是机械照搬 Paper 源码。

📈 压测验证

Meow Anti-Xray 不只停留在功能实现，也做过真实跑图和高压区块加载测试。下面数据来自本地 Fabric / NeoForge dev server、spark profiler 与项目内网络假玩家压测工具，重点验证的是“区块包重写在真实加载压力下是否稳定”。

场景 结果 🧪 Fabric 真实单人跑图 TPS 稳定 20.00，MSPT 中位数 3.31ms，meowantixray 在 server-thread mods 视图占比约 3.55% 🔥 NeoForge 8 个网络假玩家高压跑图 91s 内处理 36,233 个 chunks，约 398.06 chunks/s，客户端错误 0 🚀 更高吞吐配置测试 async-queue-size=64 时 91s 内处理 38,037 个 chunks，约 417.92 chunks/s，客户端错误 0

这些测试说明：默认配置优先保证内存稳定，高压跑图时不会让异步重写任务无限堆积；如果服务器内存更充足，也可以通过调大 async-queue-size 换取更高区块吞吐。完整性能报告可通过 spark 链接查看：

• 🧪 Fabric 真实跑图：https://spark.lucko.me/btQdhJh1gH
• 🔥 NeoForge 8 假玩家，默认保守队列：https://spark.lucko.me/yFi0jlgOf4
• 🚀 NeoForge 8 假玩家，更高吞吐队列：https://spark.lucko.me/FyVDZTMgHb

🌍 适合哪些服务器

• 🧱 Fabric / NeoForge 生存服
• 🤝 公益服、半公开服、好友服
• 🛡️ 希望使用 Mod 生态，但仍然需要强反矿透的服务器
• 🗺️ 使用预生成地图、高视距、频繁传送或多人跑图的服务器
• 🐾 想从 MeowConsole 内置反矿透迁移到独立反矿透模组的服务器

预生成或预加载地图不会绕过本模组。它在区块发送给玩家客户端时生效，而不是在区块生成时修改世界数据。网页地图、离线渲染器等直接读取服务端真实区块数据的工具，需要使用它们自己的隐藏或渲染配置。

🚀 快速开始

1. 从 Modrinth 下载与你的 Loader 匹配的 jar：Fabric 下载 Fabric 文件，NeoForge 下载 NeoForge 文件。
2. 把 jar 放入服务端 mods 目录。
3. 启动服务端，生成配置文件：

config/meowantixray.yml

1. 根据服务器类型调整隐藏方块、替换方块、高度范围和异步参数。
2. 使用 /antixray reload 重载配置，使用 /antixray status 与 /antixray profile 检查运行状态。

🧰 常用命令

/antixray status /antixray reload /antixray profile /antixray debug <world> <x> <y> <z>

🔗 链接

• GitHub：https://github.com/xiaoyiluck666/MeowAnti-Xray
• 问题反馈：https://github.com/xiaoyiluck666/MeowAnti-Xray/issues
• Modrinth：https://modrinth.com/mod/meowanti-xray
• MeowConsole 原项目：https://modrinth.com/mod/meowconsole