hg2-data-extractor 0.6.1

Python package for extracting Houkai Gakuen 2 assets data

About

hg2-data-extractor is a Python package for downloading, decrypting, and extracting Houkai Gakuen 2 Unity text asset data.

Installation

From PyPi

pip install hg2-data-extractor

Commands Overview

The CLI offers several commands for processing data. Below is a quick summary:

Command	Description
lst	Prints a list of all available asset names.
download	Downloads the data_all.unity3d file from a server.
decrypt	Decrypts the data_all.unity3d file into a ready-to-extract format.
extract	Extracts specific assets or a preset of assets into .tsv files.

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Usage

The CLI is invoked through a main entry point (e.g., hg2-data-extractor or python -m <module-name>). Below are detailed examples for each command.

1. List Available Assets

Prints a list of all assets from the decrypted data_all.unity3d file.

hg2-data-extractor lst --output-dir extracted --data-all path/to/data_all_dec.unity3d

Option	Description	Default Value
--output-dir, -o	Directory to save the output file.	extracted
--data-all, -d	Path to the decrypted data_all file.	data_all/data_all_dec.unity3d

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2. Download Data

Downloads the data_all.unity3d file from the specified server.

hg2-data-extractor download <server> <version> --decrypt --output-dir extracted

Option	Description	Default Value
<server>	The server to download from (CN, JP).	Required
<version>	The version of the game (e.g., 11.1 or 9_8).	Required
--decrypt	Decrypts the downloaded file.	False
--output-dir, -o	Directory to save the downloaded file.	extracted

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3. Decrypt Data

Decrypts an encrypted data_all.unity3d file.

hg2-data-extractor decrypt <input> --output-dir data_all

Option	Description	Default Value
<input>	Path to the file to decrypt.	data_all/data_all.unity3d
--output-dir, -o	Directory to save the decrypted file.	data_all

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4. Extract Assets

Extracts specific assets or a preset of assets into .tsv files.

hg2-data-extractor extract <asset-names> --preset items --asset-file assets.txt --output-dir extracted --data-all path/to/data_all_dec.unity3d

Option	Description	Default Value
<asset-names>	Names of assets to extract.	None
--preset, -p	Preset of assets to extract (items, story).	None
--asset-file, -f	Path to a file with line-separated asset names.	None
--output-dir, -o	Directory to save the extracted files.	extracted
--data-all, -d	Path to the decrypted data_all file.	data_all/data_all_dec.unity3d

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Examples

1. Download, Decrypt, and Extract Preset

Download data from the JP server for version 11.1, decrypt it, and extract items:

hg2-data-extractor download JP 11.1 --decrypt --output-dir extracted
hg2-data-extractor extract --preset items --data-all extracted/data_all_dec.unity3d --output-dir extracted

2. Extract Specific Assets

Extract specific assets by name:

hg2-data-extractor extract WeaponDataV3 PassiveSkillDataV3 --data-all data_all/data_all_dec.unity3d --output-dir assets

3. Use a File for Asset Names

Extract assets listed in a file:

hg2-data-extractor extract --asset-file assets.txt --data-all data_all/data_all_dec.unity3d --output-dir assets

Credits

This project is a modified version of the hg2-downloader project by BLUEALiCE