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 #include "Runtime/Engine/Classes/Kismet/GameplayStatics.h" -> where can include "UGameplayStatics"

  UGameplayStatics :: GetPlayerController ( GetWorld (), 0 );   Then you don't need to iterate through all of them. For example if you are in a Singleplayer Game. 더 ▼ 답변됨  Nov 13 '14 at 4:29 PM eXi 7.2k   ●   340   ●   195   ●   482 18 Depends on what you want to do and where you want to do it. The main way you'd do this is here. for ( FConstPlayerControllerIterator Iterator = GetWorld ()-> GetPlayerControllerIterator (); Iterator ; ++ Iterator ) { }   Some things have the owner variable as a  APlayerController  (`APlayerState`, etc) Clients only have 1 controller, their own. Servers have ALL controllers. You'll want to use  IsLocalPlayerController  to differentiate on the server. 더 ▼ 답변됨  Jul 02 '14 at 2:38 AM Crzyhomer  STAFF 1.3k   ●   35   ●   26   ●   104   dbrizov  Jul 02 '14 at 2:47 AM I see, thank you very much :)   Mungyun  Nov 13 '14 ...

https://forums.unrealengine.com/t/top-down-view-left-button-move-and-interact/153897/4   In the Top Down template, the click-and-move functionality is set up in C++ – I can’t remember where they put it, but I seem to remember it being in the TopDownCharacter class itself. The way it works is that they bind the left mouse click input to a function that gets the Hit result under the cursor, gets the location of the HitResult, and calls a move function – I think it’s the SimpleMoveToLocation function or something like that – that takes the character to that location. The simple solution for you would be to override that bound function so that you get the HitResult under the cursor, then get the actor that is the subject of that HitResult, and try to cast it to whatever you would interact with. If you can cast it to that interactable thing, then call whatever function you are using for the interaction. If you can’t cast it to anything interactable, get the location of the HitResult and...

Point!! this damm thing need Receive Hardware in Widget component Input for Button press! UE Document link https://docs.unrealengine.com/4.26/en-US/InteractiveExperiences/UMG/HowTo/InWorldWidgetInteraction/  UE Document for UWidgetInteractionComponent https://docs.unrealengine.com/4.26/en-US/API/Runtime/UMG/Components/UWidgetInteractionComponent/ Widget creation youtube link. Interactable 3D widget

 BlueprintNativeEvent : would have the C++ and Blueprint version.  BlueprintImplementableEvent : only has a Blueprint version.  BlueprintCallable : create function which is callable in Blueprint. 0. 서문 이 글을 읽기에 앞서, UE4의 Reflection에 대한 이해가 없다면, 꼭 아래 문서부터 읽도록 하자. 언리얼 프로퍼티 시스템 : 리플렉션 함수는 일반 C++ 함수와 UFUNCTION, 두 가지의 기본적 형태로 존재 가능하다. UFUNCTION은 전용 문법이 있어, 함수 지정자를 통해 함수에 대한 부가 정보를 선언부에 지정할 수 있다. UFUNCTION ( [ specifier, specifier, ... ] ,  [ meta ( key = value, key = value, ... ) ] ) ReturnType FunctionName ( [ Parameter, Parameter, ... ] ) UE4의 함수 전반적인 내용과 모든 specifier, meta에 대한 내용은 아래 문서를 참고하기 바란다. UnrealDoc : 함수 이후 문서엔 자주 사용되는 specifier 위주로만 조금 더 자세히 정리하였다. (UFUNCTION specifier 열거값들은 ObjectMacro.h의 namespace UF에서 확인할 수 있다) 1. BlueprintPure (const) getter의 성격에 해당하는 함수를 블루프린트 그래프에 노출시킬 때 사용하면 된다. // Return whether or not the pickup is active UFUNCTION ( BlueprintPure, Category  =   "Pickup" ) bool  IsActive ( )   const   {   return  bIsA...