Windows 桌面宠物：让 Rain World 的蛞蝓猫住在你的屏幕上。exe 见 release 压缩包。

RainWorld里控制蛞蝓猫各个bodychunk拼接和行动的质点系统是C#写的，反编译后参考常量和主要函数就能足够相似的模拟。但粒子shader等效果难以复现原游戏渲染，又为了提升桌宠性能，所以我做了大量简化。

运行要求

• Windows 10 / 11
• Python 3.10+
• 初始化时需要已下载 Rain World，需要包含 Downpour (More Slugcats) DLC。

安装与运行

pip install PySide6 UnityPy numpy Pillow
python run_slugcatpet.py

首次启动会引导你选择本机的 Rain World 安装目录，从中一次性提取精灵图集到 ~/.slugcatpet/assets，仅存放在你本机、仅供本程序使用。

素材与版权说明

• 本仓库不包含任何 Rain World 游戏素材。全部游戏图像在你本机、从你自己的正版安装中提取。
• 此项目为粉丝项目，Rain World 及相关名称、美术均归其权利人所有。
• 本仓库代码以 MIT 许可发布（见 LICENSE）；该许可仅覆盖本仓库代码，不授予任何游戏素材相关权利。

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A Windows desktop pet that puts Rain World's slugcats on your screen. The .exe is in the release zip.

The mass-point system in Rain World that controls the connection and movement of the slugcat's various body chunks is written in C#. After decompiling it, I referred to its constants and main functions, which was enough to create a sufficiently similar simulation. However, effects like particle shaders are hard to replicate to match the original game's rendering, and to boost the desktop pet's performance, I made extensive simplifications.

Requirements

• Windows 10 / 11
• Python 3.10+
• Rain World installed, including the Downpour (More Slugcats) DLC.

Install and run

pip install PySide6 UnityPy numpy Pillow
python run_slugcatpet.py

On first launch you pick your Rain World install folder. Sprite atlases are extracted once to ~/.slugcatpet/assets, kept on your machine and used only by this program.

Assets and copyright

• This repository contains no Rain World assets. All game images are extracted on your machine from your own copy.
• This is a fan project. Rain World and all related names and artwork belong to their respective owners.
• The code is released under the MIT license (see LICENSE). It covers this repository's code only and grants no rights to any game assets.