[UE] Multiplayer 2: Online Subsystem Steam

 

 

목차

 

 

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프로젝트 생성 + Plugin: Online Subsystem Steam 등록하기 

 

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프로젝트 생성

 

 

 

 

 

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Plugin 설치하기  -  Online Subsystem Steam 설치

 

 

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Multiplayer.Build.cs - Plugin인 OnlineSubsystemSteam과 OnlineSubsystem을 연결한다.

 

Multiplayer.Build.cs

using UnrealBuildTool;

public class Multiplayer : ModuleRules
{
	public Multiplayer(ReadOnlyTargetRules Target) : base(Target)
	{
		PCHUsage = PCHUsageMode.UseExplicitOrSharedPCHs;

		PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore", "HeadMountedDisplay", "OnlineSubsystemSteam", "OnlineSubsystem" });
	}
}

 

"OnlineSubsystemSteam", "OnlineSubsystem"  추가

 

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DefaultGame.ini 에 코드 추가하기

 

코드 추가하기

[/Script/Engine.GameSession]
MaxPlayers=100

 

 

 

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DefaultEngine.ini

 

https://docs.unrealengine.com/4.27/en-US/ProgrammingAndScripting/Online/Steam/

Online Subsystem Steam

End Result 섹션 참조

 

 

DefaultEngine.ini

[/Script/Engine.GameEngine]
+NetDriverDefinitions=(DefName="GameNetDriver",DriverClassName="OnlineSubsystemSteam.SteamNetDriver",DriverClassNameFallback="OnlineSubsystemUtils.IpNetDriver")

[OnlineSubsystem]
DefaultPlatformService=Steam

[OnlineSubsystemSteam]
bEnabled=true
SteamDevAppId=480

; If using Sessions
; bInitServerOnClient=true

[/Script/OnlineSubsystemSteam.SteamNetDriver]
NetConnectionClassName="OnlineSubsystemSteam.SteamNetConnection"

 

SteamDevAppId=480는 Steam 예시 프로젝트인 "Space War"이다. 이것으로 테스팅하면 된다.

 

위의 코드를 복사하여 DefaultEngine.ini 코드 아래 부분에 붙여넣기 해준다. 

 

 

 

※ 참고: Steam에서 DevID = 480은 Spacewar다

 

 

 

 

DefaultEngine.ini

[/Script/EngineSettings.GameMapsSettings]
GameDefaultMap=/Game/ThirdPerson/Maps/ThirdPersonMap.ThirdPersonMap
EditorStartupMap=/Game/ThirdPerson/Maps/ThirdPersonMap.ThirdPersonMap
GlobalDefaultGameMode="/Script/Multiplayer.MultiplayerGameMode"

[/Script/IOSRuntimeSettings.IOSRuntimeSettings]
MinimumiOSVersion=IOS_14

[/Script/Engine.RendererSettings]
r.Shadow.Virtual.Enable=1
r.Mobile.EnableNoPrecomputedLightingCSMShader=1


r.GenerateMeshDistanceFields=True

r.DynamicGlobalIlluminationMethod=1

r.ReflectionMethod=1

[/Script/HardwareTargeting.HardwareTargetingSettings]
TargetedHardwareClass=Desktop
AppliedTargetedHardwareClass=Desktop
DefaultGraphicsPerformance=Maximum
AppliedDefaultGraphicsPerformance=Maximum

[/Script/WindowsTargetPlatform.WindowsTargetSettings]
DefaultGraphicsRHI=DefaultGraphicsRHI_DX12

[/Script/Engine.Engine]
+ActiveGameNameRedirects=(OldGameName="TP_ThirdPerson",NewGameName="/Script/Multiplayer")
+ActiveGameNameRedirects=(OldGameName="/Script/TP_ThirdPerson",NewGameName="/Script/Multiplayer")
+ActiveClassRedirects=(OldClassName="TP_ThirdPersonGameMode",NewClassName="MultiplayerGameMode")
+ActiveClassRedirects=(OldClassName="TP_ThirdPersonCharacter",NewClassName="MultiplayerCharacter")

[/Script/AndroidFileServerEditor.AndroidFileServerRuntimeSettings]
bEnablePlugin=True
bAllowNetworkConnection=True
SecurityToken=0EE075DC4E9840DD7FB23B839AD4B854
bIncludeInShipping=False
bAllowExternalStartInShipping=False
bCompileAFSProject=False
bUseCompression=False
bLogFiles=False
bReportStats=False
ConnectionType=USBOnly
bUseManualIPAddress=False
ManualIPAddress=

[/Script/Engine.GameEngine]
+NetDriverDefinitions=(DefName="GameNetDriver",DriverClassName="OnlineSubsystemSteam.SteamNetDriver",DriverClassNameFallback="OnlineSubsystemUtils.IpNetDriver")

[OnlineSubsystem]
DefaultPlatformService=Steam

[OnlineSubsystemSteam]
bEnabled=true
SteamDevAppId=480
bInitServerOnClient=true

[/Script/OnlineSubsystemSteam.SteamNetDriver]
NetConnectionClassName="OnlineSubsystemSteam.SteamNetConnection"

bInitServerOnClient=true 를 안 해주면 정상적으로 Package가 안 될 수도 있다. 

 

 

 

 

 

Generate Visual Studio project files 클릭

 

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Online Subsystem에 접근하기

 

 

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MultiplayerCharacter

 

MultiplayerCharacter.h

#pragma once
#include "CoreMinimal.h"
#include "GameFramework/Character.h"
#include "MultiplayerCharacter.generated.h"

UCLASS(config=Game)
class AMultiplayerCharacter : public ACharacter
{
	GENERATED_BODY()

	/** Camera boom positioning the camera behind the character */
	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Camera, meta = (AllowPrivateAccess = "true"))
	class USpringArmComponent* CameraBoom;

	/** Follow camera */
	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Camera, meta = (AllowPrivateAccess = "true"))
	class UCameraComponent* FollowCamera;
public:
	AMultiplayerCharacter();

	/** Base turn rate, in deg/sec. Other scaling may affect final turn rate. */
	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category=Input)
	float TurnRateGamepad;

protected:

	/** Called for forwards/backward input */
	void MoveForward(float Value);

	/** Called for side to side input */
	void MoveRight(float Value);

	/** 
	 * Called via input to turn at a given rate. 
	 * @param Rate	This is a normalized rate, i.e. 1.0 means 100% of desired turn rate
	 */
	void TurnAtRate(float Rate);

	/**
	 * Called via input to turn look up/down at a given rate. 
	 * @param Rate	This is a normalized rate, i.e. 1.0 means 100% of desired turn rate
	 */
	void LookUpAtRate(float Rate);

	/** Handler for when a touch input begins. */
	void TouchStarted(ETouchIndex::Type FingerIndex, FVector Location);

	/** Handler for when a touch input stops. */
	void TouchStopped(ETouchIndex::Type FingerIndex, FVector Location);

protected:
	// APawn interface
	virtual void SetupPlayerInputComponent(class UInputComponent* PlayerInputComponent) override;
	// End of APawn interface

public:
	/** Returns CameraBoom subobject **/
	FORCEINLINE class USpringArmComponent* GetCameraBoom() const { return CameraBoom; }
	/** Returns FollowCamera subobject **/
	FORCEINLINE class UCameraComponent* GetFollowCamera() const { return FollowCamera; }

public:
	//Pointer to the online session interface
	TSharedPtr<class IOnlineSession, ESPMode::ThreadSafe> OnlineSessionInterface;
};

변수 추가

• TSharedPtr<class IOnlineSession, ESPMode::ThreadSafe> OnlineSessionInterface;
  • online session interface를 가리키는 포인터

 

 

 

MultiplayerCharacter.cpp

#include "MultiplayerCharacter.h"
#include "Camera/CameraComponent.h"
#include "Components/CapsuleComponent.h"
#include "Components/InputComponent.h"
#include "GameFramework/CharacterMovementComponent.h"
#include "GameFramework/Controller.h"
#include "GameFramework/SpringArmComponent.h"
#include "OnlineSubsystem.h"
#include "Interfaces/OnlineSessionInterface.h"

//////////////////////////////////////////////////////////////////////////
// AMultiplayerCharacter

AMultiplayerCharacter::AMultiplayerCharacter()
{
	// Set size for collision capsule
	GetCapsuleComponent()->InitCapsuleSize(42.f, 96.0f);

	// set our turn rate for input
	TurnRateGamepad = 50.f;

	// Don't rotate when the controller rotates. Let that just affect the camera.
	bUseControllerRotationPitch = false;
	bUseControllerRotationYaw = false;
	bUseControllerRotationRoll = false;

	// Configure character movement
	GetCharacterMovement()->bOrientRotationToMovement = true; // Character moves in the direction of input...	
	GetCharacterMovement()->RotationRate = FRotator(0.0f, 500.0f, 0.0f); // ...at this rotation rate

	// Note: For faster iteration times these variables, and many more, can be tweaked in the Character Blueprint
	// instead of recompiling to adjust them
	GetCharacterMovement()->JumpZVelocity = 700.f;
	GetCharacterMovement()->AirControl = 0.35f;
	GetCharacterMovement()->MaxWalkSpeed = 500.f;
	GetCharacterMovement()->MinAnalogWalkSpeed = 20.f;
	GetCharacterMovement()->BrakingDecelerationWalking = 2000.f;

	// Create a camera boom (pulls in towards the player if there is a collision)
	CameraBoom = CreateDefaultSubobject<USpringArmComponent>(TEXT("CameraBoom"));
	CameraBoom->SetupAttachment(RootComponent);
	CameraBoom->TargetArmLength = 400.0f; // The camera follows at this distance behind the character	
	CameraBoom->bUsePawnControlRotation = true; // Rotate the arm based on the controller

	// Create a follow camera
	FollowCamera = CreateDefaultSubobject<UCameraComponent>(TEXT("FollowCamera"));
	FollowCamera->SetupAttachment(CameraBoom, USpringArmComponent::SocketName); // Attach the camera to the end of the boom and let the boom adjust to match the controller orientation
	FollowCamera->bUsePawnControlRotation = false; // Camera does not rotate relative to arm

	// Note: The skeletal mesh and anim blueprint references on the Mesh component (inherited from Character) 
	// are set in the derived blueprint asset named ThirdPersonCharacter (to avoid direct content references in C++)

	IOnlineSubsystem* OnlineSubsystem = IOnlineSubsystem::Get();
	if (OnlineSubsystem)
	{
		OnlineSessionInterface = OnlineSubsystem->GetSessionInterface();

		if (GEngine)
		{
			GEngine->AddOnScreenDebugMessage(
				-1,
				15.0f,
				FColor::Blue,
				FString::Printf(TEXT("I found SubSystem %s"), *OnlineSubsystem->GetSubsystemName().ToString())
			);
		}
	}
}

//////////////////////////////////////////////////////////////////////////
// Input

void AMultiplayerCharacter::SetupPlayerInputComponent(class UInputComponent* PlayerInputComponent)
{
	// Set up gameplay key bindings
	check(PlayerInputComponent);
	PlayerInputComponent->BindAction("Jump", IE_Pressed, this, &ACharacter::Jump);
	PlayerInputComponent->BindAction("Jump", IE_Released, this, &ACharacter::StopJumping);

	PlayerInputComponent->BindAxis("Move Forward / Backward", this, &AMultiplayerCharacter::MoveForward);
	PlayerInputComponent->BindAxis("Move Right / Left", this, &AMultiplayerCharacter::MoveRight);

	// We have 2 versions of the rotation bindings to handle different kinds of devices differently
	// "turn" handles devices that provide an absolute delta, such as a mouse.
	// "turnrate" is for devices that we choose to treat as a rate of change, such as an analog joystick
	PlayerInputComponent->BindAxis("Turn Right / Left Mouse", this, &APawn::AddControllerYawInput);
	PlayerInputComponent->BindAxis("Turn Right / Left Gamepad", this, &AMultiplayerCharacter::TurnAtRate);
	PlayerInputComponent->BindAxis("Look Up / Down Mouse", this, &APawn::AddControllerPitchInput);
	PlayerInputComponent->BindAxis("Look Up / Down Gamepad", this, &AMultiplayerCharacter::LookUpAtRate);

	// handle touch devices
	PlayerInputComponent->BindTouch(IE_Pressed, this, &AMultiplayerCharacter::TouchStarted);
	PlayerInputComponent->BindTouch(IE_Released, this, &AMultiplayerCharacter::TouchStopped);
}

void AMultiplayerCharacter::TouchStarted(ETouchIndex::Type FingerIndex, FVector Location)
{
	Jump();
}

void AMultiplayerCharacter::TouchStopped(ETouchIndex::Type FingerIndex, FVector Location)
{
	StopJumping();
}

void AMultiplayerCharacter::TurnAtRate(float Rate)
{
	// calculate delta for this frame from the rate information
	AddControllerYawInput(Rate * TurnRateGamepad * GetWorld()->GetDeltaSeconds());
}

void AMultiplayerCharacter::LookUpAtRate(float Rate)
{
	// calculate delta for this frame from the rate information
	AddControllerPitchInput(Rate * TurnRateGamepad * GetWorld()->GetDeltaSeconds());
}

void AMultiplayerCharacter::MoveForward(float Value)
{
	if ((Controller != nullptr) && (Value != 0.0f))
	{
		// find out which way is forward
		const FRotator Rotation = Controller->GetControlRotation();
		const FRotator YawRotation(0, Rotation.Yaw, 0);

		// get forward vector
		const FVector Direction = FRotationMatrix(YawRotation).GetUnitAxis(EAxis::X);
		AddMovementInput(Direction, Value);
	}
}

void AMultiplayerCharacter::MoveRight(float Value)
{
	if ( (Controller != nullptr) && (Value != 0.0f) )
	{
		// find out which way is right
		const FRotator Rotation = Controller->GetControlRotation();
		const FRotator YawRotation(0, Rotation.Yaw, 0);
	
		// get right vector 
		const FVector Direction = FRotationMatrix(YawRotation).GetUnitAxis(EAxis::Y);
		// add movement in that direction
		AddMovementInput(Direction, Value);
	}
}

헤더 추가

• #include "OnlineSubsystem.h"
• #include "Interfaces/OnlineSessionInterface.h"

 

AMultiplayerCharacter::AMultiplayerCharacter()

• IOnlineSubsystem* OnlineSubsystem = IOnlineSubsystem::Get();
      if (OnlineSubsystem)
      {
          OnlineSessionInterface = OnlineSubsystem->GetSessionInterface();
  
          if (GEngine)
          {
              GEngine->AddOnScreenDebugMessage(
                  -1,
                  15.0f,
                  FColor::Blue,
                  FString::Printf(TEXT("I found SubSystem %s"), *OnlineSubsystem->GetSubsystemName().ToString())
              );
          }
      }

 

 

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Package Project

 

 

 

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다른 컴퓨터에서 .exe 파일 열기

 

 

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실행화면

 

 

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