header

UFUNCTION ( server, reliable, validation )

type funcName(var);

cpp

.AddBind( param, object, funcName );

type funcName_Implementation(var)

{ 실행문 ( 서버에서 ) }

bool funcName_Validation(var)

{ return 유효성 } // false일 경우, cheating 규칙 적용

보간 패턴

• Location - Linear interp.
• Revolutionary - Location Slerp ( spherical linrea interpolation )
• Velocity
  • exponential 합성하여 사용
  • sigmoid interp.
  • bezier ( hermite ) interp. - FMath::CubicInterp ( p0, t0, p1, t1, a ) - position, tangent(velocity or pos.derivation), alpha
• Acceleration
  • sigmoid는 어차피 n차에서 항상 미분 가능
  • 여기를 클릭하여 펼치기...
  • bazier ( hermite ) 은 차수 하나 늘리면 됨 ( https://docs.unrealengine.com/4.26/en-US/API/Runtime/Core/Math/FMath/CubicInterp/1/ )
  • exponential은 필요에따라 custom하기 편하고

https://github.com/UnrealMultiplayer/3_Steam_Multiplayer

FileTree ( ← 사용처 / → 내용 / 없는거 arg )

• MenuSystem
  • UMenuWidget : UUserWidget // 메뉴리스트 프레임
    • Setup() ( → 기본변수 셋업, SetInputMode(FInputModeUIOnly), bShowMouseCursor = true )
    • Teardown() ( → remove from viewport || remove from parent, SetInputMode, bShowMouseCursor ) // 자가붕괴
    • SetMenuInterface() ( → 참조변수_MenuInterface 지정 )
  • UInGameMenu : UMenuWidget // level에서 esc 메뉴
    • Init() ( → 버튼에 함수 바인딩 )
    • QuitPressed() ( → teardown 및 LoadMainMenu() ( main menu level로 이동 ) )
    •  Inherit
      • Teardown() // 자가붕괴
      • LodaMainMenu()
  • UMainMenu : UMenuWidget // 로비 메뉴
    • Constructor ( → BP클래스객체 = ConstructorHelpers::FClassFind<UUserWidget> BPClass(TEXT).Class )
    • Init ( → 버튼 바인딩 )
    • OpenMainMenu() ( → menuswitcher(U위젯스위처).SetActiveWidget(타겟자식위젯 or 인덱스)
    • HostServer() ( → MenuInterface ( UEditableTextBlock위젯.Text.Tostring )
    • SelectIndex ( int ) ( → int 번호 var에 저장 후, UpdateChildren() )
    • UpdateChildren() ( → var에 저장된 int번호기준, 선택된거 "선택상태", 나머지 "비선택상태"로 변경 bool UServerRow.Selected)
    • OpenJoinMenu() ( → 위젯스위처에서 join메뉴 활성, RefreshServerList() )
    • OpenMainMenu() (→ 위젯스위처에서 MainMenu 활성 )
    • QuitPressed() ( → ConsoleCommand("quit") )
    • Inherit (MenuWidget)
      • MenuInterface ( 만들서버이름 )
  • IMenuInterface : UInterface
    • Host(FString)
    • Join(uint)
    • LoadMainMenu()
    • RefreshServerList()
  • UServerRow : UUserWidget // 메뉴리스트 컴포넌트
    • Setup ( 부모ref, 자기 번호(부모안에서) ) ( ← 부모에서 생성 후 호출 ) ( → ref들 내부변수로 할당 및 Rowbutton 바인딩 )
    • OnClciekd() ( → 부모의 선택됨인덱스에 자기한테 부여된 번호 주입 )
• LobbyGameMode :: AGameModeBase
  • StartGame() ( → GameInstance.StartSession // World.ServerTravel ) 
  • inherit ( game mode )
    • PostLogin ( APlayerController ) ( → 인원수 체크 / 다모이면 StartGame() )
    • Logout ( APlayerController ) ( → 인원수 감소 )

• PP.GameInstance : UGameInstance, IMenuInterface
  • Function
    • Init()
    • LoadMenuWidget() ( Menu ← MenuClass // Menu.Setup // Menu.SetMenuInterface(this) ) // 인터페이스를 통함
    • InGameLoadMenu() ( InGameLoadMenu ← InGameLoadMenuClass // InGameLoadMenu.Setup // InGameLoadMenu.SetMenuInterface(this) ) // 인터페이스를 통함
    • StartSession() ( → SessionInterface.StartSession(세션이름) )
    • CreateSession() ( → SessionInterface.CreateSession( 호스팅플레이어num, 원하는세션이름, FOnlineSessionSettings )
    • OnCreateSessionComplete(FName SessionName, bool Success) ( ← SessionInterface.OncreateSessionCompleteDelegates.Add ) when Init ( → Menu.Teardown() // World.ServerTravel(레벨파일경로?listen) )
    • OnDestroySessionComplete(FName SessionName, bool Success) ( ← SessionInterface.OnDestoySessionCompleteDelegates.Add ) when Init
    • OnFindSessionsComplete(bool Success) ( ← SessionInterface.OnFindSessionsCompleteDelegates.Add ) when Init
    • OnJoinSessionComplete(FName SessionName, EOnJoinSessionCompleteResult::Type Result) ( ← OnJoinSessionCompleteDelegates ) when Init ( → GetFirstLocalPlayerController로 자기 PC 얻고 // PC.ClientTravel(ip주소, ETravelType )
    • OnNetworkFailure ( UWorld* World, UNetDriver* NetDriver, ENetworkFailure::Type FailureType, const FString& ErrorString ) ( ← GEngine.OnNetworkFailure().Add )
    • Inherit ( Interface )
      • Host(FString) ( → 원하는 세션이름 받고(arg) // 세션있으면 기존세션 제거 // 없으면 CreateSession() )
      • Join(uint) ( → Menu 끄고 // SessionInterface.JoinSession(유저번호, 세션이름, FOnlineSessionSearchResult ( session search시 참조로 받아올 수 있는 structure )
      • LoadMainMenu() ( → PC.ClientTravel() )
      • RefreshServerList() ( → SessionInterface.FindSession(탐색플레이어num, TSharedRef<FOnlineSessionSearch>)
  • Property
    • TSubclassOf<UUserWidget> MenuClass ( ← ContructorHelpers::FClassFinde<UUserWidget> MenuBPClass(TEXT(경로)) + MenuBPClass.class ) when Construct
    • TSubclassOf<UUserWidget> InGameMenuClass ( ← ContructorHelpers::FClassFinde<UUserWidget> InGameMenuBPClass(TEXT(경로)) + InGameMenuBPClass.class ) when Construct
    • MainMenu* Menu
    • IOnlinSessionPtr SessionInterface
    • TSharedPtr<FOnlineSessionSearch> SessionSearch
    • FString DesiredServerName
• PP.GameMode
  • Construct()
    • DefaultPawnClass = BP;

외부파일

• DefaultEngine.ini
  • [/Script/EngineSettings.GameMapsSettings]
    •  TransitionMap=/Game/PuzzlePlatforms/Maps/Transiton.Transiton ( seamless travel을 위한 map 설정 )
  • [/Script/Engine.GameEngine]
    • +NetDriverDefinitions=(DefName="GameNetDriver",DriverClassName="OnlineSubsystemSteam.SteamNetDriver",DriverClassNameFallback="OnlineSubsystemUtils.IpNetDriver")
  • [OnlineSubsystem]
    • DefaultPlatformService=Steam
  • [OnlineSubsystemSteam]
    • bEnabled=true
    • SteamDevAppId=480
  • [/Script/OnlineSubsystemSteam.SteamNetDriver]
    • NetConnectionClassName="OnlineSubsystemSteam.SteamNetConnection"
• Projectname.uproject
  • "Plugins": [ { "Name": "OnlineSubsystemSteam", "Enabled": true } ]
• Projectname.Build.cs
  • PublicDependencyModuleNames.AddRange( "OnlineSubsystemStea" )