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Assets.md

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Minecraft Assets

General

Assets are Game Files. For example:

  • Textures
  • Sounds
  • Language Files
  • Block/Item models
  • (Icons)
  • Maybe more, but not relevant at this time

Index assets

Those are downloaded from https://resources.download.minecraft.net/. They are separated in "types". You can specify what types to download in the resources.json. Available types are:

  • LANGUAGE Languages minecraft is translated to (except en_US)
  • SOUNDS All .ogg files with all sounds from the game (like music or block break sounds)
  • TEXTURES Pretty mich none available, but this might get a thing in th future

client.jar assets

Those are core assets (kind of essential for the game), delivered in the client.jar (textures, en_US language, models, etc)

When connecting to a server (and not specified in the resources.json) it downloads the client.jar for the minecraft version that you requested. The client.jar is shaded and only relevant assets will be saved in the applications' folder. Pretty much the same happens for

assets sources

There is a file called assets_properties.json. In that file are all hashes for assets (e.g. pixlyzer, index, client.jar, ...). It is automatically generated by a script called /util/assets_properties_generator.py.

Modifications

Those assets are not modifiable and checked everytime they get loaded (to disable this, set verify in the resources.json to false).

Resource packs

They are pretty bugged, expect that things break. They are still supported. To add a resource pack, add this to resource_packs in the resources.json:

{
  "type": "ZIP",
  "path": "/home/moritz/PureBDcraft 128x MC118.zip"
}

The type can either be ZIP or DIRECTORY (self explaining). The path the is path to the file/directory
Resource packs override everything that is provided by the original sources (so you can change block models, everything. Can also be minosoft related to change language files, mappings, shaders or themes)

Storing

All assets are stored sub folders of assets/. There are (probably 256) folders with the first 2 digits of the hash. All files are saved without extension and are (unless specified in code, currently only pixlyzer data (that is in mbf and mbf is probably already zstd compressed)) compressed with facebooks zstd algorithm.