Awesome

<div align="center"> <a href="https://github.com/colyseus/colyseus"> <img src="https://github.com/colyseus/colyseus/blob/master/media/header.png?raw=true" /> </a> <br> <br> <a href="https://npmjs.com/package/colyseus"> <img src="https://img.shields.io/npm/dm/colyseus.svg?style=for-the-badge&logo=data:image/png;base64,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"> </a> <a href="https://patreon.com/endel" title="Donate to this project using Patreon"> <img src="https://img.shields.io/badge/dynamic/json?logo=patreon&style=for-the-badge&color=%23e85b46&label=Patreon&query=data.attributes.patron_count&suffix=%20backers&url=https%3A%2F%2Fwww.patreon.com%2Fapi%2Fcampaigns%2F365642" alt="Patreon donate button"/> </a> <a href="https://discuss.colyseus.io" title="Discuss on Forum"> <img src="https://img.shields.io/badge/discuss-on%20forum-brightgreen.svg?style=for-the-badge&colorB=0069b8&logo=data:image/png;base64,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" alt="Discussion forum" /> </a> <a href="https://discord.gg/RY8rRS7"> <img src="https://img.shields.io/discord/525739117951320081.svg?style=for-the-badge&colorB=7581dc&logo=discord&logoColor=white"> </a> <h3> Multiplayer Game Client for Unreal Engine. <br /><a href="https://docs.colyseus.io/colyseus/">View documentation</a> </h3> </div>

Example

#include "Client.h"
#include "Room.h"

const FString UMyComponent::SocketURL = TEXT("https://my-url.com");

struct FMyMessageStruct
{
	int Id;
	std::string Name;
	std::string Text;

	// You can rename fields!
	MSGPACK_DEFINE_MAP(MSGPACK_NVP("id", Id), MSGPACK_NVP("name", Name), MSGPACK_NVP("text", Text));
};

void UMyComponent::Connect()
{
	ClientInstance = MakeShared<Client>(SocketURL);
	ClientInstance->JoinOrCreate<void>("room_name", {{"room_option", "option_value"}},
		[this](TSharedPtr<MatchMakeError> Error, TSharedPtr<Room<void>> Room)
		{
			if (Error)
			{
				UE_LOG(/* oh dear! */)
				return;
			}

			UE_LOG(/* connected! */)

			this->RoomInstance = Room;

			this->RoomInstance->OnMessage("message_type",
				[](const msgpack::object& Message)
				{
					FMyMessageStruct Event = Message.as<FMyMessageStruct>();
					// Do something with the event...!
				});
		});
}

Contributors

Big thanks to Hung Hoang for making the Cocos2D C++ implementation of this client, which the Unreal Engine implementation is based on.

License

MIT