CmlLib.Core 3.1.1

CmlLib.Core

Minecraft Launcher Library

<img src='https://raw.githubusercontent.com/CmlLib/CmlLib.Core/master/logo.png' width=150>

This library is minecraft launcher library for .NET 5.0 / .NET Core 3.1 / .NET Framework 4.6.2
Support all version, with Forge

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Version

Current version: 3.1.1

Functions

• Online or Offline login
• Download the game files from the Mojang file server
• Launch any version (tested up to 1.16.2)
• Launch Forge, Optifine or any other custom version
• Download the Minecraft java runtime from the Mojang file server
• Install Forge
• Launch with options (direct server connecting, screen resolution)
• Supports cross-platform (windows, ubuntu, mac, only on .NET Core)
• Microsoft Xbox Live Login

How to Install

Install the 'CmlLib.Core' Nuget package or download the dll files in Releases and add references to them in your project.

Write this at the top of your source code:

using CmlLib.Core;
using CmlLib.Core.Auth;

How to Use

Official documentation: wiki

Sample Code

Login

Login Process

var login = new MLogin();
var response = login.TryAutoLogin();

if (!response.IsSuccess) // failed to automatically log in
{
    var email = Console.ReadLine();
    var pw = Console.ReadLine();
    response = login.Authenticate(email, pw);

    if (!response.IsSuccess)
         throw new Exception(session.Result.ToString()) // failed to log in
}

// This session variable is the result of logging in and is used in MLaunchOption, in the Launch part below.
var session = response.Session;

Offline Login

// This session variable is the result of logging in and is used in MLaunchOption, in the Launch part below.
var session = MSession.GetOfflineSession("USERNAME");

Launch

//var path = new MinecraftPath("game_directory_path");
var path = new MinecraftPath(); // use default directory

var launcher = new CMLauncher(path);
launcher.FileChanged += (e) =>
{
    Console.WriteLine("[{0}] {1} - {2}/{3}", e.FileKind.ToString(), e.FileName, e.ProgressedFileCount, e.TotalFileCount);
};
launcher.ProgressChanged += (s, e) =>
{
    Console.WriteLine("{0}%", e.ProgressPercentage);
};

foreach (var item in launcher.GetAllVersions())
{
    Console.WriteLine(item.Name); // list version names
}

// more options : https://github.com/AlphaBs/CmlLib.Core/wiki/MLaunchOption
var launchOption = new MLaunchOption
{
    MaximumRamMb = 1024,
    Session = session, // Login session. ex: Session = MSession.GetOfflineSession("hello")

    //ScreenWidth = 1600,
    //ScreenHeigth = 900,
    //ServerIp = "mc.hypixel.net"
};

// launch vanila
var process = launcher.CreateProcess("1.15.2", launchOption);

// launch forge (already installed, using this if you want to launch forge or optifine)
// var process = launcher.CreateProcess("1.16.2-forge-33.0.5", launchOption);

// launch forge (install forge if not installed, not stable, not recommended)
// var process = launcher.CreateProcess("1.16.2", "33.0.5", launchOption);

process.Start();

More information

Go to wiki

What is different between CmlLib.Core and CmlLib?

CmlLib.Core is developed using .NET Core and supports cross platform, but CmlLib doesn't support it, and is deprecated.