Modern solution for minecraft resource pack development

ProtocolLib is required for bukkit version

• Models generating
• Auto CustomModelData
• Auto sounds FFmpeg conversion
• Auto fancyPants (custom armor)
• Obfuscation

Look at the example project

Json is used in lenient mode, possible file extensions:

• json
• json5
• jsonc

Some features of json5 will not work due to GSON flaws

Thanks to this table, you can clearly see how content paths work

Context is always important in this way, right now we are in the 'foo:bar/baz' folder

Java Block/Item models in the ProPack are called meshes. Their files should end with .mesh.json.

In order for your mesh to be applied to an item, you need to create a model configuration

Models configuration file name should end with .model.json.

WARNING: Offset works wrong, not recommended to use

DefaultItemModel, example:

{
  "Type": "DefaultItemModel",
  "Mesh": "./mesh",
  "Target": "minecraft:paper"
}

CombinedItemModel, example:

{
  "Type": "CombinedItemModel",
  "Mesh": "./mesh",
  "Elements": {
    "element1": "./mesh1",
    "element2": {
      "Mesh": "./mesh2"
    },
    "element3": {
      "Mesh": "./mesh3",
      "Offset": [0.1, 0.2, 0.3],
      "Scale": {
        "Origin": [8.0, 0.0, 8.0],
        "Size": 2.0
      }
    }
  },
  "Target": "minecraft:paper"
}

Offset simply move whole mesh relative

Scale is representation of BlockBench's Transform -> Scale tool

Rotation at the generation stage not supported, sorry

SlotItemModel, example:

{
  "Type": "SlotItemModel",
  "Mesh": "./awp",
  "Slots": {
    "scope": {
      "collimator": "../scopes/collimator",
      "holographic": {
      	"Mesh": "../scopes/holographic",
      	"Offset": [0.0, 3.0, 0.0]
      }
    },
    "grip": {
      "vertical": "../grips/vertical",
      "bipods": "../grips/bipods"
    },
    "magazine": {
      "exists": "../magazine"
    }
  },
  "Target": [
    "minecraft:paper",
    "minecraft:crossbow"
  ]
}

Working with sub-meshes is the same as in CombinedItemModel

• Type - the type of model presented above
• Mesh - basic mesh, the path can be specified relative to (./)
• Target - this is a list of items for which you want to Auto CustomModelData of the specified model.

When building resource pack ProPack takes the default model from the folder include/assets/minecraft/models/item/<item>.json and adds the necessary elements to override.

Using ProtocolLib, it takes the model path from the NBT tag CustomModel and automatically specifies its CustomModelData.

Example NBT tag for DefaultItemModel:

• {CustomModel:"example:models/example_defaultmodel"}

Example NBT tag for CombinedItemModel:

• {CustomModel:"example:models/example_combinedmodel",CombinedItemModel:["element1","element3"]}

Example NBT tag for SlotItemModel:

• {CustomModel:"example:models/example_slotmodel",SlotItemModel:[scope:"holographic",magazine:"exists"]}

Sound files must ends with .sound.json, eg. scream.sound.json

Sound file paths can be relative, example ../folder/sound.

FFmpeg auto conversion is supported. Optionally, use -Dpropack.ffmpeg=path to define its location, by default it ffmpeg

Added an automatic builder of custom textures for leather armor for the shader fancyPants

Armor file must ends with .armor.json, eg. emerald.armor.json

Example file:

{
  "Color": {
    "r": 255,
    "g": 0,
    "b": 0
  },
  "Layer1": "./emerald_armor_layer_1.png",
  "Layer2": "./emerald_armor_layer_2.png"
}

The second animated version:

{
  "Color": "#00ff00", 
  "Layer1": "./test_layer_1.png",
  "Layer2": {
    "Image": "./test_layer_2.png",
    "SaveImage": false,
    "Frames": 4,
    "Speed": 24,
    "Interpolation": true,
    "Emissivity": 0
  }
}

.png is not required to be specified.

For more information, see README.md of fancyPants

SaveImage allows you to determine whether to save the specified Image in the output resource pack

Language file must ends with .lang.json, eg. en_us.lang.json.

Path in content doesn't matter.

Multiple languages in the same namespace will be merged into one.

There is also a placeholder <namespace>.

Fonts work unchanged except for the file extension .font.json

It is recommended to work with custom fonts from another plugin working with ProPack API

It just obfuscates the entire resource pack, except for translations. The settings for this function are in config/build.json5

• (PREPARING TO START!) Rewrite builder to Rust or Go as binary executable for all platforms and architectures.
• Integration into ItemsAdder, Oraxen, Model Engine, etc.
• Fonts generating (auto symbol mapping, etc.)
• (ALMOST DONE) Global player resource pack memory using Redis and CI/CD. (for multi server)
• Improve the quality of the code and API.
• Vanilla minecraft support for Fabric and Quilt.

Click here to read the entire license.