UE4 C++ Tutorial -
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- เผยแพร่เมื่อ 9 ต.ค. 2024
- This Video:
In this video, we look at the includes and forward declarations, where and how to use them as well as a couple of extra handy tips.
Intro to C++:
Intended to be the true intro to C++ for UE4. This playlist is intended to focus on one topic at a time and explain how, why and when they work. Think of it as documentation in video form.
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@6:20 you talk about the header to get the include data from, but since a while back the documentation also includes the exact #include line just a bit lower on that same page. which you can actually see right there on the video.
Yeah, I realised when editing the video that I should have been a little clearer to make a point of that for people who might wonder why there might be so many directories before the one we actually need depending on where you're searching for it. As you mention though as long as you can locate it on the official documentation they now include the exact path. Edit: Pinned so hopefully, people will see this first.
Perfect Sir! Just perfect.
Thank you. I watched 4 other videos before this one and none of them actually explained how you would get the intellisense and full definition in the CPP file.
@5:00 Helps you know how to find the right includes. Very useful.
In this video, we look at the includes and forward declarations, where and how to use them as well as a couple of extra handy tips.
These videos are really informative, keep it up👍
very useful! thanks!
2:33 A sequence of forward declarations is a typical side-effect of complex class libraries, where you cannot fully avoid (direct or indirect) cross-references (reference loops).
Super
I'm unsure by what you mean when you say "reference," i don't see any & operators here and it's not as if we're re-initialising the forward declaration of UCapsuleComponent like :
class UCapsuleComponent
class& ReferenceOfUCapsuleComponent = UCapsuleComponent;
and then in the .cpp file:
// intialisation of ReferenceOfUCapsuleComponent
I'm doing the Unreal Engine 4 course and am on the "ToonTanks" section currently. I am slightly confused as to what you mean by referencing the forward declaration. Please explain if you can xD, I'm probably making a very stupid misunderstanding.
Sorry, I seem to use the term reference quite loosely sometimes. Feel free to replace that with whatever you feel comfortable with.
Dev Enabled Oh 😅, thanks for replying I guess took it too literally
3:22 Huh, exactly this was the reason Epic Games rearranged its header file structure and introduced What-You-Use (IWYU) to simply include Components/CapsuleComponents.h no need this forward declaration hackery any more.
Hello
Great tutorial, you could put an enumeration to the title, that is, UE4 C++ Tutorial 001 and so on, greetings
Are you going to uplaod all the topic step by step?
Yes, I don't have the spare time to record, edit and upload an entire playlist of videos if that's what you mean?
@@DevEnabled Yes
Do u use any third party plugin for programming in visual studio (cause the intellisense for ue4 is absolut broken). Most of the unreal engine internal defs uses holetomato i think.
Yeah, I heard the same about the internal devs too and I can see why they would. Default intellisense is a mess. In the start of this playlist, I think I was using Resharper. I found it to be much more lightweight than Visual Assist, took much less time to get the files loaded and was still almost as accurate, most of the time. In the later tutorials, I'm actually using the Rider IDE provided by JetBrains, same people who make the Resharper plugin and it's probably my favourite thing to use. Super fast to load, great auto-complete and intellisense. One thing I'd mention is that I think all three options have free trial periods so it might be worth giving them each a go. Visual Assist and Resharper are really easy to install. If you want to try Rider for Unreal. It currently supports engine version 4.25 and you can get it for free for several months on the Marketplace. I think all of them end up being paid but if you're developing in c++ for a long time then any one of them will be worth it.
@@DevEnabled Amazing! Thanks for the long answer. Because i just finished the trail of Visual Assist, i will try Rider next. Thank you!
I love Resharper, I was using it for a long time in Unity and now at Unreal too, but recently I started experimenting with Rider for Unreal (an another IDE from JetBrains, currently in Beta, you can get a free license during this time) since I am already using Rider in Unity and it's a must-have for me.
incognito mode mmmmm