Coming from unity there are many concept dont exist in unreal?

[moeenk]

1. can’t enable disable objects so how object pooling works in unreal?

2. many clean code approaches desn’t exist:

• dependency injection: using interfaces for resolving dependency.
• mvc, mvvm and other design patterns are used widely in unity.

3. when i interview and do test projects, all that matters for companies is project architecture and how to structure the code and this separates the level od developers. how this works in unreal?

I need to know both for blueprints and c++. i know c++ is not a modern language and many design patterns like DI do not work like in modern managed languages but I need to know what makes a developer the best one in unreal engine.

[BIGTIMEMASTER (Aljav)]

you have interfaces available.

I was going to type a lengthy reply, but i easily found pages and pages of discussion and answers to your questions with one forum search… try “unreal object pooling”.

[eblade]

@moeenk

can’t enable disable objects so how object pooling works in unreal?

write code that does what you need it to. Enabling and Disabling an object could mean a lot of different things.

@moeenk

1. many clean code approaches desn’t exist:

• dependency injection: using interfaces for resolving dependency.
• mvc, mvvm and other design patterns are used widely in unity.

@moeenk

I need to know both for blueprints and c++. i know c++ is not a modern language and many design patterns like DI do not work like in modern managed languages but I need to know what makes a developer the best one in unreal engine.

Dependency Interjection, and likely every design pattern you can possibly think of, and have ever or will ever hear of, has been done in C or C++.

MVC as you understand it in Unity, is basically how handling player interaction has worked in Unreal since the beginning of time. You have a ViewportClient, a PlayerController, and a Pawn that work together to be your control/interaction in the world

You use any other design pattern that you can think of in the exact same way in Unreal as you do in Unity, most likely.

@moeenk

when i interview and do test projects, all that matters for companies is project architecture and how to structure the code and this separates the level od developers.

whaaaat? in almost 15 years of being a professional code author, i’ve never had anyone ask me anything like that.

@moeenk

I need to know what makes a developer the best one in unreal engine.

In my opinion, basic familiarity with the engine, and knowing how to figure out how to make it do what needs to get done.

[Rainqp]

Here is from a plugin ActorDetailUtilPlugin. Source is also from here:

[Feature Request] Stuff I miss from Unity

Yes, I made some tweaks and now the button affects all selected actors. Also I changed casting from UPrimitiveComponents to USceneComponents: ** ( I am insisting on this because I need it too! ) [ActorUtils]

I also wish that unreal devs will implement something like this and make this a built-in to the engine.

[Rainqp]

coming from unity as well. Enabling/disabling objects mean how to enable/disable an actor in unreal in playmode.

Based on my research there is currently no simple one-liner support for this. You basically need 3 things and you do that for every child component of that actor.

Here are some threads that discuss this.

Disable an Actor

So I elected to implement an empty class and called it HelperClass, so I can just access its static functions. The following are the methods I used, you can always extend this to disable other things you want to as well: void HelperClass::deactivateActor(AActor* actor) { // Deactivate this actor actor->SetActorHiddenInGame(true); actor->SetActorEnableCollision(false); actor->SetActorTickEnabled(false); // Call on children TArray<AActor*> children; actor->GetAllChildActors(children); /…

[Feature Request] Stuff I miss from Unity

Thanks for the update again. Yeah, Deactivate/Activate works perfectly. FYI, multiple Actor Deactivate works but Multiple Actor Activate doesn’t work yet; it makes all actors visible again but they won’t move. I suppose it matters what kind of components we have and there could be many corner cases. ^^ Cheers!

And here is from the official documentation. I really find this useful especially if you would like to do a feature comparison of both engines.

Unreal Engine 4 For Unity Developers

Taken from the link above.