EMC-Core

NodeJS Module for Electron Minecraft launcher

Avantages 💫

EMC-Core is a upgrade of minecraft-launcher-core dev by Pierce01

• Auto check & downloading compatible java version
• Support 100% custom minecraft version
• Work with ftp without any zip file, juste drop folder in your ftp
• Auto check & delete file with bad hash & size

Install Client

Quick Start ⚡

git clone https://github.com/Zeldown/EMC-Core-quick-start.git
cd EMC-Core-quick-start
npm install
npm start

Installation 📦

npm install emc-core

Usage 🚩

Require library

const { MCAuth, MCLaunch } = require('emc-core');

Create and Init launcher var MCLaunch

const launcher = new MCLaunch();

Authentification 🔒

Mojang

let authenticator;

MCAuth.auth(username, password).then(user => {
  authenticator = user;
  //success
}).catch(error => {
  //error
})

username => The email of mojang account

password => The password of mojang account

Return

const user = {
  access_token: uuid(),
  client_token: uuid(),
  uuid: uuid(),
  name: username,
  user_properties: JSON.stringify({})
}

Microsoft

InDev

Launch 🚀

Options

let opts = {
  url: "http://zeldown.com/emc-core/",
  overrides: {
    detached: false
  },
  authorization: authenticator,
  root: "C:/Users/guill/AppData/Roaming/.emc-core",
  version: "1.15.2",
  forge: "1.15.2-forge-31.2.0",
  checkFiles: true,
  memory: {
      max: "6G",
      min: "4G"
  }
}

Launching

launcher.launch(opts);

Debugging 🐛

To get debug use launcher.on('xxx', (e) => ...)

debug

call when a debug log is print by Minecraft

launcher.on('debug', (e) => console.log("[DEBUG]" + e));

data

call when a data log is print by Minecraft

launcher.on('data', (e) => console.log("[DATA]" + e));

error

call when a error log is print by Minecraft

launcher.on('error', (e) => console.log("[ERROR]" + e));

download-status

call when a download file progress

launcher.on('download-status', (e) => {
  //update progress bar
});

verification-status

call when a verification of files progress

launcher.on('verification-status', (e) => {
  //update verification bar
});

launch

call when Minecraft start launching

launcher.on('launch', (e) => {
  //Minecraft start
});

Install Server 🚧

🚨 You must have a web hosting

PreBuild Server Version

1. Download EMC-Core-Server of your version at https://github.com/Zeldown/EMC-Core/releases
2. Extract archive on your computer
3. In EMC-Core-Server/files put your files to download (mods, config, etc). Default files in folder is mandatory (assets, libraries, natives, versions)
4. Put the folder EMC-Core-Server to your web hosting (exemple: upload folder EMC-Core-Server at https://exemple.com/)
5. Set url option of launch options to url of content of EMC-Core-Server (exemple: https://exemple.com/EMC-Core-Server)

let opts = {
  url: url_of_emc-core-server,
  ...
}

Build EMC-Core-Server with builder.js

1. Clone EMC-Core project at https://github.com/Zeldown/EMC-Core
2. Extract archive on your computer
3. Go into emc-core extracted folder
4. run npm i
5. run node utils/builder.js --version="@version" --path="@path"

Build custom EMC-Core-Server

1. Create a folder with the file reader.php
2. Create a folder java
3. Put an archive of java named java.zip in java folder (exemple : java.zip)
4. Create a folder files
5. Put all files of minecraft in folder files like assets, library, natives, mods, versions
6. Put your custom folder to your web hosting (exemple: upload folder My-Version at https://exemple.com/)
7. Set url option of launch options to url of content of custom folder (exemple: https://exemple.com/My-Version)

let opts = {
  url: url_of_your_uploaded_version,
  ...
}

EMC-Core-Server schema

Here is a schema of a classic emc-core-server archive

EMC-Core-Server with forge

1. Build a vanilla emc-core-server version with the base version of your forge (e.g. 1.15.2)
2. Add your forge version files (@forge_version.json & @forge_version.jar) into EMC-Core-Server/versions/@forge_version (e.g. versions/1.15.2-forge-31.2.0/)
3. Add forge libraries into EMC-Core-Server/libraries

(natives & assets are same in vanilla and forge version)

Credits 🎉

Based on code of Pierce01 ❤️

Special thanks to Faustin#8347 for code help & readme review

Thanks to Relax#3333 for funding