New C# Features in Unity

As of Unity 2021.2, you now have access to some new C# features in Unity. This is thanks to improved support for .NET Standard 2.1 which has given us Unity developers the ability to use all of the features available in C# 8.0. In this video I'll cover a handful of programming features that I think are the most interesting.

00:00 Introduction
01:18 Sign up for the Level_2 Game Dev Newsletter
02:10 Readonly Members
06:00 Default Interface Methods
08:42 Indices and Ranges
11:12 Conclusion

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[UnitydCollege]

Made it into the friends list! :)

Great video btw!

[iHeartGameDev]

That sweet sweet syntactic sugar! Thanks for another awesome video, Charles! Your videos are one of the few I make sure to watch from start to finish because literally everything you explain has value.

[happypixls]

My issue with default interface method is that it starts to blur the line between abstract classes and the classical definition of an interface (i.e. interface is a contract).
I've honestly ran into interesting design pattern problems where I really wanted to have a default interface method, but then I thought it was a bad design from my part that trapped me in that corner.
Even though I know that this is more of C# discussion rather than Unity discussion, but I'm curious to hear/read your opinion about it :)

[jean-michel.houbre]

Very clear. An additional part would be welcome, your introduction is perfect for tackling the documentation effectively. Thank you.

[wendten]

I'm so glad you mentioned the Jasons, I had a fear you were no longer on good terms. I really miss your chats with Storey, as you two had so informative correspondence with each other.

[INeatFreak]

I think using minus ( example: "carrots[-5]" ) rather than ^ would be a lot easier to reason about. But still a cool feature :)

[BorisNovikov]

10:41 the line 15 seems to be a little wrong. It would print first four elements, not five as the end index is exclusive.

[LipeSK]

Default Interface Methods is definitely my new favorite feature.

[ElboxD]

When this video was posted, I didn't understand a single thing of it. 3 months later, after studying like hell, I still don't get it... lol, jk. It's so cool to be able to understand every single bit of the video. I feel proud of what've accomplished in these 2 months, helps to fight the depression and impostor syndrome. It means a lot to me.

It wouldn't have been possible without awesome people like: Charles, SamYam, and all other other amazing youtubers out there. Thanks!

[rafa_guitar]

Thanks for sharing! Deafult Interface methods call my curiosity ;-)

[AlanZucconi]

This is the content I'm here for. ✨

[VEOdev]

That array thing ^ .. will be helpfull

[Gbtx]

it sucks that we don't access to c#10or at least 09.There's just so much more added in both versions but at least we're Unity is moving forward with the changes. I just recently starting using Unity, and it's been a nice experience, but Im biased given that I already know 2 other engines, Godot and gamemaker studio 2. It feels great to use my beloved C# in an engine like Unity.

Thanks a lot for the video!

[rickyfreddy]

Did you reupload this video? I saw it once before and I don't think it was uploaded that recently then. If so, is this a setup for a part 2? 😁

[dragonlance]

@10:45 If what he is saying here is correct, wouldn't that line be incorrect? Shouldn't it be "First Four:" if the end range number is exclusive?

[CyberAngel]

Correct me if I am wrong, because it appears you have lost the plot.

Unity introduce C#8 into Unity 2020.2, or at least the vast majority of that support. And as of Unity 2021.2, they introduce a small subset of C# 9.0, so I am confused how they then snuck this up to C#10 when not even all of C#9 is supported as yet?

And C#11 is not even finalised and no work has even begun on that as yet.

Did you have too much to drink New Years Eve?

And 2 of the 3 things you mentioned I have specifically been using since Unity 2020.2, the other I am not 100% certain it was in that version of Unity.

[zeeshansattar]

I've subscribed to "Level 2 Game Dev Newsletter" since you announced it and I have not received any newsletter yet?

[christopher]

Nice video, thanks for the info. FWIW, melee is not pronounced "me-lee", it is a French word and pronounce "meh-LAY".

[ThousandAnt]

Great video Charles! Definitely looking forward to trying out some of those new array tricks :)

[saeedbarari]

Whoa. Now how long till 2021 comes LTS ?