UDP Networking with external apps

Greetings!

I’m an UE4 user but I’m working on a project that will requiere a mobile companion app to connect through UDP on LAN and I’m considering using Construct 3 for the app, but I wanted to know what options do I have for that. I saw a few attempts on the forum but they are for older versions.

I saw that C3 has UCP built in but it appears to have a very specific implementation (WebRTC?) that I’m not sure will work with Unreal.

Ant pointers will be greatly appreciated.

Thanks.

Tell us the features you need, we will tell you if it's doable.

Webrtc outside of the sdk is a virtual black box, or as we like to call it Multiplayer.

You can connect to peers via a connecting server. The initial player acts as a host.

Connection to other non Construct apps via Multiplayer is not a regular thing.

There are other methods Like Websockets, or third parties, Photon, Firebase, etc.

Ok, what I'm trying to do is to create a mobile companion app that I can use as a controller for the PC Game.

I already have this working within UE4 (a build for the PC server and a build for the mobile apps), but the mobile app is 60 mb without any content at all, so I'm looking to replace it with something much more lightweight.

What I would basically need is to send control commands from the mobile app (movement axis, turn, jump...etc), which would then be interpreted inside UE4. Also I would need UE4 to send feedback events to the mobile app (like player killed), so C3 will interpret them and will display a splash screen saying you got killed, for example.

I already found a few plugins for UE4 that will allow me to create a server through UDP (which is what I have been told is the best solution for my problem), but I still need to find a client solution for UDP.

Thanks.

Ps: I ONLY need this to work in LAN.

I know about AirConsole, and that's exactly what I'm trying to do, but with my own propietary solution, because there's no AirConsole plugin for UE4 (amongst other things).

However, since I only need to send simple string commands, wouldn't that be possible with JavaScript? (I´m asking sincerly since I don't know JavaScript at all. I'm just looking for the best way to do it so then I can find someone with that particular skill to do it).

I found a github link with a simple example code for UDP connections with JS. Could this be implemented somehow in C3 to send/recieve the neccesary commands to UE4? gist.github.com/sid24rane/6e6698e93360f2694e310dd347a2e2eb

Thanks.

Browsers don't have permission to use raw network connections like sending UDP packets. You can only use the browser networking APIs like WebRTC, AJAX or WebSockets.

Ok, thanks a lot for the reply.

I guess I'll have to go with something not browser based for this particular project.

Still, I found C3 to be a great lightweight engine and I'll be 100% learning it as my secondary engine for prototypes and smaller/web/mobile projects :) So contrags on the awesome work on the engine!