Mirror/README.md

![Mirror Logo](https://i.imgur.com/aZRKBeh.png)

[![Download](https://img.shields.io/badge/asset_store-brightgreen.svg)](https://www.assetstore.unity3d.com/#!/content/129321)
[![Documentation](https://img.shields.io/badge/documentation-brightgreen.svg)](https://vis2k.github.io/Mirror/)
[![Forum](https://img.shields.io/badge/forum-brightgreen.svg)](https://forum.unity.com/threads/mirror-networking-for-unity-aka-hlapi-community-edition.425437/)
[![donate](https://img.shields.io/badge/donations-brightgreen.svg)](https://www.patreon.com/MirrorTelepathy)
[![Build status](https://img.shields.io/appveyor/ci/vis2k73562/hlapi-community-edition/Mirror.svg)](https://ci.appveyor.com/project/vis2k73562/hlapi-community-edition/branch/mirror)
[![Discord](https://img.shields.io/discord/343440455738064897.svg)](https://discordapp.com/invite/N9QVxbM)
[![release](https://img.shields.io/github/release/vis2k/Mirror.svg)](https://github.com/vis2k/Mirror/releases/latest)

Mirror is a **high level** Networking API for Unity, built on top of the **low level** [Telepathy](https://github.com/vis2k/Telepathy) library.

Mirror is built [and tested](https://www.youtube.com/watch?v=mDCNff1S9ZU) for **MMO Scale** Networking by the developers of [uMMORPG](https://www.assetstore.unity3d.com/#!/content/51212), [uSurvival](https://www.assetstore.unity3d.com/#!/content/95015) and [Cubica](https://cubica.net).

Mirror is optimized for **ease of use** and **probability of success**. Projects that use Mirror are small, concise and maintainable. uMMORPG was possible with <6000 lines of code. We needed a networking library that allows us to [launch our games](https://ummorpg.net/showcase/), period.

With Mirror, the **Server & Client are ONE** project _(hence the name)_. Instead of having one code base for the server and one for the client, we simply use the same code for both of them.
* `[Server]` / `[Client]` tags can be used for the server-only and client-only parts.
* `[Command]` are used for Client->Server, and `[ClientRpc]` / `[TargetRpc]` for Server->Client communication.
* `[SyncVar]`s and `SyncList`s are used to automatically synchronize state.

What previously required **10.000** lines of code, now takes **1.000** lines of code. Therein lies the **magic of Mirror**.

_Note: Mirror is based on Unity's abandoned UNET Networking system. We fixed it up and pushed it to MMO Scale._

## Documentation
Check out our [Documentation](https://vis2k.github.io/Mirror/).

If you are migrating from UNET, then please check out our [Migration Guide](https://vis2k.github.io/Mirror/General/Migration). Don't panic, it's very easy and won't take more than 5 minutes.

## Installation
We **recommend** to download the most **stable Mirror version** from the [Asset Store](https://www.assetstore.unity3d.com/#!/content/129321)!

For the latest improvements, [Download Mirror](https://github.com/vis2k/Mirror/releases) directly from this repository and extract it in your Assets folder.

## Examples
We included several smaller example projects in Mirror.

For a fully polished, complete project example, consider [uMMORPG](https://www.assetstore.unity3d.com/#!/content/51212) or [uSurvival](https://www.assetstore.unity3d.com/#!/content/95015).

## Community Transports
Mirror supports many different low level networking transports:

* (built in) https://github.com/vis2k/Telepathy (Telepathy)
* (built in) Websockets
* (built in) Unity's LLAPI
* https://github.com/Raystorms/FizzySteamyMirror/ (SteamNetwork)
* https://github.com/SoftwareGuy/Ignorance/ (ENet)
* https://github.com/MichalPetryka/LiteNetLib4Mirror (LiteNetLib)

## Donations
Mirror is developed by volunteers. If you like what we are doing, consider leaving [a small donation](https://www.patreon.com/MirrorTelepathy).

## Benchmarks
* Telepathy [1000 connections](https://github.com/vis2k/Telepathy) test
* [uMMORPG 480 CCU worst case test](https://youtu.be/mDCNff1S9ZU) (everyone broadcasting to everyone else)
* [uSurvival 122 CCU worst case test](https://docs.google.com/document/d/e/2PACX-1vT28FcGXYlbG8gwi8DhD914n7K-wCAE8qhfetPkSli96ikc1Td3zJO1IiwVhfPVtKUHF0l3N7ZkM5GU/pub#h.pwbvffnwcewe)

## Contributing
If you would like to contribute, feel free to [submit pull requests](https://vis2k.github.io/Mirror/General/Contributions) and visit our [Discord Server](https://discordapp.com/invite/N9QVxbM).

We follow the [KISS](https://en.wikipedia.org/wiki/KISS_principle) principle, so make sure that your Pull Requests contain no magic.

We need Mirror to be MMO Scale. Bug fixes are always highly appreciated. New features will be considered very carefully.