sc-compression

This module allows you to compress and decompress Supercell assets. It supports the following signatures:

Value	Signature	Comment
0	NONE	Regular non-compressed file
1	LZMA	Starts with 5d 00 00
2	SC	Starts with SC
3	SCLZ	Starts with SC and contains SCLZ
4	SIG	Starts with Sig:

The module automatically finds the right signature when decompress function is called.

Install

npm install git+https://github.com/FourCinnamon0/sc-compression.git

Available methods

• decompress(buffer) - returns a Buffer
• compress(buffer, signature) - returns a Buffer
• readSignature(buffer) - returns a file signature as a Number

Example

const { readdirSync, readFileSync, writeFileSync } = require('fs');
const { resolve } = require('path');
const ScCompression = require('sc-compression');

const directory = 'coc-13.0.4/logic';
readdirSync(directory).forEach((file) => {
    const filepath = resolve(directory, file);
    const buffer = readFileSync(filepath);
    writeFileSync(filepath, ScCompression.decompress(buffer));
});

See tests for additional implementation examples.

Step by step guide for non-developers

• Make sure you have Node.js installed (https://nodejs.org/en/)
• Run npm install -g sc-compression in a terminal
• Download examples/decompress.js from this repository
• Run node decompress.js in a terminal