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by MagicNumber 3200 days ago
Do you know the reason causing such a fallback? Would there, in general, be any other possibility to use UDP under the circumstances causing the fallback?

If I am not mistaken, it is at least possible to detect whether UDP is available using the protocol property of the RTCIceCandidate. [1]

[1] https://www.w3.org/TR/webrtc/#dom-rtcicecandidate
1 comments
vvanders 3200 days ago
Nope, spec just doesn't mandate that UDP is a required channel.

I mean fundamentally the goals of WebRTC and game engines just aren't that well aligned. All games are going to want an authoritative server to hold the master state and reconcile clients. Where as WebRTC is very much interesting in P2P. All the STUN, TURN and ICE stuff is pretty much wasted on a game server.

The spec is also way over complicated, heck it covers DTMF for crying out loud.

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MagicNumber 3200 days ago
Thank you for the information. Unfortunately, unreliable data channels currently seem to be the best option if you want people to be able to host their own game server easily from within the browser without having to install additional software.

Having experimented a bit with WebRTC myself, I agree that it is overly complex but it also offers many features. And if usage is too complicated for game developers, they can still libraries that simplify the usage for their purpose.

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pthatcherg 3200 days ago
As I just commented higher up in the thread, it is possible to force UDP if that's what you want.

And while WebRTC is complex, you can ignore almost all of that if you're just doing client to server data channels. You just need to speak ICE lite, DTLS, and SCTP, all of which have libraries. See some of my comments from months ago for more details.

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vvanders 3200 days ago
> just need to speak ICE lite, DTLS, and SCTP...

I think your proving my point here. That's a lot more to ask than a simple libsodium based crypto + auth token that something like Netcode.io uses.

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