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Are dotNET Reactive Extensions compatible with Unity (yet)?

Discussion in 'Scripting' started by Ryunis, Dec 1, 2020.

  1. Ryunis

    Ryunis

    Joined:
    Dec 23, 2014
    Posts:
    24
    Historically there have been some issues with the official(?) implementation of ReactiveX (found here) and it's compatibility with Unity. This resulted in UniRx, a community effort to provide similar functionality and Unity specific API support.

    Unfortunately UniRx looks to be semi-abandoned and more importantly seems to lack many operators that make ReactiveX so powerful. Reactive Extensions are still being actively developed, so I wanted to ask if anyone knows if they are still incompatible?
     
    Ryunis, Dec 1, 2020
    #1
    Macro likes this.

  2. Kurt-Dekker

    Kurt-Dekker

    Joined:
    Mar 16, 2013
    Posts:
    36,762
    Looking around I suspect you might be the one person most qualified and most motivated to determine this.

    I imagine setting up a quick test in an empty project might take less time than writing a post even!
     
    Kurt-Dekker, Dec 1, 2020
    #2

  3. Ryunis

    Ryunis

    Joined:
    Dec 23, 2014
    Posts:
    24
    Not really, unfortunately.
    One of the issues of the official version, mentioned in the UniRx repo, concerns IL2CPP builds on iOS, which I have currently no way of testing.

    I assume the situation is similar to native async/await. You can get a simple example in the editor running perfectly fine, but that in no way guarantees all of the library features to work on all platforms without any weird quirks.

    I was hoping to hear from anyone who might have used it / is using it in production, because I'm not planning on writing 100s of unit tests, which I then deploy and run on all platforms.
     
    Last edited: Dec 1, 2020
    Ryunis, Dec 1, 2020
    #3
    Macro likes this.

  4. Macro

    Macro

    Joined:
    Jul 24, 2012
    Posts:
    45
    @Ryunis We started trying to work this out a while ago and started putting together a test bed to see what would work with different platforms, I think we got a small amount of traction but it was a problem trying to get people with devices to test it on. From what I remember someone was using rx.net with xamarin on ios so they confirmed that you *can* use a lot of rx.net on AOT devices/scenarios but as IL2CPP is bespoke I don't know if it would work the same way.

    Anyway the repo is here: https://github.com/grofit/unity-rx-test

    With .net 6 on the horizon I am hoping by the time Unity adds support for that then hopefully this sort of AOT scenario stuff may improve a bit.
     
    Macro, Apr 23, 2021
    #4

  5. YurySedyakin

    YurySedyakin

    Joined:
    Jul 25, 2018
    Posts:
    61
    For anyone interested, my test of Rx.NET 5.0 started working in Unity 2022.1 on both iOS and Android. It's a very simple one, just a few rx operators, but it used to fail in 2021.3
     
    YurySedyakin, Nov 23, 2022
    #5
    xianzzz likes this.