STOVE Store Developer Guide alpha

# PC SDK Unreal Walkthrough

To learn how to apply STOVE PC SDK 2.0 to an UNREAL-based game, we will explain how to link STOVE PC SDK to the HelloStove project and use the SDK API.

confirm To complete this example: Before proceeding with the following example, install STOVE Launcher (opens new window) in advance and Preparing SDK development environment (opens new window) to obtain an App key, App secret, and Game Id.
HelloStove project was created in Visual Studio 2015 Update 3.
The 'Unreal StoveSDK plugin' of the HelloStove project supports only 'UNREAL engine 4.21.2' or later and requires pre-installation of 'EpicGamesLauncher' and 'UNREAL Editor'.

# Setting up STOVE Launcher

(1) Download STOVE Launcher from Download PC Client (opens new window).

(2) Create a PolicyConfig.json file in the folder where STOVE Launcher is installed.

  • Sandbox default installation location : C:\Program Files (x86)\Smilegate\STOVEGATE8
  • Live default installation location : C:\Program Files (x86)\Smilegate\STOVE

(3) Enter the following contents in the PolicyConfig.json file and create it when registering the STOVE Studio project.

Warning

You must be logged in after running the STOVE launcher during SDK integration.

After creating PolicyConfig.json with the structure like below, add the following to it

  • Sandbox : C:\Program Files (x86)\Smilegate\STOVEGATE8
  • Live : C:\Program Files (x86)\Smilegate\STOVE

Check the Game ID and replace it.




 



{
  "skip_check_game_list":
  [
    "id_hellostove"
  ]
}
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Note

You can change "id_hellostove" to the gameID registered with STOVE Partners.

(4) Run the STOVE Launcher and log in with the gameID you registered with STOVE.

# Download HelloStove Walkthrough Project

Download and unzip the HelloStove project for following from the link below.

The HelloStove project is in a state where the ‘UNREAL StoveSDK plugin’ is not integrated. Start by linking with UNREAL StoveSDK Plugin.

# Configuring the Project Environment

  • Download the latest version of the Unreal(C/C++) distribution file (Shown as Plugin) from the Download page

# 1) Configure Unreal Plugin Folder

Unzip the STOVE PC SDK StovePCSDK_UNREAL_x.x.x.zip file in the StovePCSDK_UNREAL folder, the HelloStove project. Copy the Plugins folder that you see to the HelloStove project and configure it in a state where you can build HelloStove_Unreal as shown in the picture below.

Figure1

If you double-click HelloStove.uproject, a window appears to select whether to rebuild UNREAL. (Depending on the UNREAL version, the engine version selection window may appear first) If you choose Yes (Y), it creates ancillary folders such as Binaries, Intermediate, and Saved in the corresponding folder. After creating an additional folder, it automatically executes the UNREAL editor.

Figure6

Figure6.2

Figure6.3

# 2) Create VisualStudio Solution

If you complete the Unreal build successfully, create HelloStove.sln using Unreal Engine. You can right-click on the HelloStove.uproject and create a Visual Studio solution.

confirm Depending on the UNREAL version, the HelloStove.sln file may be created first.

Figure2

# 3) Configure StovePCSDKPlugin at Visual Studio Solution

Suppose you have completed creating the Visual Studio solution file. In that case, you require the following steps to integrate Plugin in the HelloStove project.

# a. Configure StoveSDK_Unreal build module

To recognize the Plugin module in HelloStove_Unreal, add the module name dependency to the HelloStove.uproject and HelloStove.Build.cs files.

Double-click the HelloStove.sln file to run Visual Studio, open the HelloStove.uproject file in the solution explorer. Add StoveSDKPlugin, the plugin's name, in the "AdditionalDependencies" item shown in the code below.

  • HelloStove.uproject
{
	"FileVersion": 3,
	"EngineAssociation": "4.21",
	"Category": "",
	"Description": "",
	"Modules": [
		{
			"Name": "HelloStove",
			"Type": "Runtime",
			"LoadingPhase": "Default",
			"AdditionalDependencies": [
                "UMG",
                "Engine",
                "CoreUObject",
                "StoveSDKPlugin"
			]
		}
	]
}
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In HelloStove.Build.cs, add (AddRange) StoveSDKPlugin to PublicDependencyModuleNames and PrivateDependencyModuleNames modules as shown in the code below, respectively, to import the plugin into the UNREAL engine.

  • HelloStove.Build.cs

using UnrealBuildTool;

public class HelloStove : ModuleRules
{
	public HelloStove(ReadOnlyTargetRules Target) : base(Target)
	{
		PCHUsage = PCHUsageMode.UseExplicitOrSharedPCHs;
	
		PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore", "Projects", "StoveSDKPlugin" });


        PrivateDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore", "Projects", "StoveSDKPlugin" });

		// Uncomment if you are using Slate UI
		// PrivateDependencyModuleNames.AddRange(new string[] { "Slate", "SlateCore" });
		
		// Uncomment if you are using online features
		// PrivateDependencyModuleNames.Add("OnlineSubsystem");

		// To include OnlineSubsystemSteam, add it to the plugins section in your uproject file with the Enabled attribute set to true
	}
}
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# b. Change parent class of UMyStoveSDKObject

If you added the plugin's build module dependency through the above steps, proceed with the procedure below to use the Stove SDK function. Change the parent class of the derived class UMyStoveSDKObject from the existing UStoveSDKEmptyObject class to the new UStoveSDKObect class.

Before changing the parent class, the UMyStoveSDKObject class inherits the skeleton class UStoveSDKEmptyObject, but no function works. To use all the plugin functions, you need to include the header file StoveSDKObject.h and change it to inherit the UStoveSDKObect class.

  • Before
#pragma once

#include "CoreMinimal.h"
#include "StoveSDKEmptyObject.h"
#include "MyStoveSDKObject.generated.h"

DECLARE_DELEGATE_OneParam(FDele_Delegate_Log, FString);



UCLASS()
class HELLOSTOVE_API UMyStoveSDKObject : public UStoveSDKEmptyObject
{
    GENERATED_BODY()
protected:
    // Called when the game starts or when spawned
   ...
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  • After
#pragma once

#include "CoreMinimal.h"
#include "StoveSDKObject.h"
#include "MyStoveSDKObject.generated.h"

DECLARE_DELEGATE_OneParam(FDele_Delegate_Log, FString);


UCLASS()
class HELLOSTOVE_API UMyStoveSDKObject : public UStoveSDKObject
{
    GENERATED_BODY()
protected:
    // Called when the game starts or when spawned
    
    ...
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After completing the parent class change, delete StoveSDKEmptyObect.h from the project or comment out the header. The build will proceed without any problem.

# c. Set UMyStoveSDKObect Member variables in UMyGameInstance

Remove the comment in the code below marked with /*remark delete*/ in HelloStove UMyGameInstance.

  • UMyGameInstance.h
#include "CoreMinimal.h"
#include "Engine/GameInstance.h"
/*remark delete*/
/*#include "MyStoveSDKObject.h"*/
#include "MyGameInstance.generated.h"

UCLASS()
class HELLOSTOVE_API UMyGameInstance : public UGameInstance
{
	GENERATED_BODY()
public:
	UMyGameInstance()
	{
		/*remark delete*/
		/*_stoveSDKObject = NewObject<UMyStoveSDKObject>();*/
	}

private:
	/*remark delete*/
    /*UPROPERTY()
    UMyStoveSDKObject* _stoveSDKObject;*/
};
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# d. Button event connection of MyUserWidget

There is a button in HelloStove to test the StoveSDK API call. To integrate Plugin and connect with button event, remove the comment in the code below marked with /*remark delete*/ of the UMyHelloStoveWidget class.

  • UMyHelloStoveWidget.cpp
    /*remark delete*/
	/*auto stoveSDKObject = Cast<UMyStoveSDKObject>(FindStoveSDKObject());
	stoveSDKObject->_OnDeleLog.BindUObject(this, &UMyHelloStoveWidget::OnEventLog);*/

void UMyHelloStoveWidget::OnClickInit()
{
	/*remark delete*/
	/*auto stoveSDKObject = Cast<UMyStoveSDKObject>(FindStoveSDKObject());
	stoveSDKObject->StoveSDKInit(FStoveConfig{});*/
}

void UMyHelloStoveWidget::OnClickToken()
{
	/*remark delete*/
	/*auto stoveSDKObject = Cast<UMyStoveSDKObject>(FindStoveSDKObject());
	stoveSDKObject->StoveSDKGetToken();*/
}

void UMyHelloStoveWidget::OnClickUser()
{
	/*remark delete*/
	/*auto stoveSDKObject = Cast<UMyStoveSDKObject>(FindStoveSDKObject());
	stoveSDKObject->StoveSDKGetUser();*/
}

void UMyHelloStoveWidget::OnClickUnInit()
{
	/*remark delete*/
	/*auto stoveSDKObject = Cast<UMyStoveSDKObject>(FindStoveSDKObject());
	stoveSDKObject->StoveSDKUnInit();*/
}
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# SDK Initialization

To initialize the SDK, set the environment value of StoveSDK in the FStovePCConfig structure,
and write the example code below into the UMyStoveSDKObject::StoveSDKInit function.

Caution

Change YOUR_APP_KEY, YOUR_SECRET_KEY, and YOUR_GAME_ID to the pre-issued data. If you call the UMyStoveSDKObject::StoveSDKInit function without logging into the Stove Launcher, an error occurs.

MyStoveSDKObject.cpp

FStoveResult UMyStoveSDKObject::StoveSDKInit(const FStoveConfig& Config)
{
    /*Add some 'follow along' code here:*/
    /*In this function, ignore Config received as a function argument. */
    //config
    FStoveConfig ReplaceConfig{ 
        "LIVE", 
        "YOUR_APP_KEY", 
        "YOUR_SECRET_KEY", 
        "YOUR_GAME_ID", 
        STOVE_PC_LOG_LEVEL_DEBUG, 
        "" };  // logpath
    FStoveResult ErrorResult = Super::StoveSDKInit(ReplaceConfig);
    if (ErrorResult.Result == STOVE_PC_NO_ERROR)
    {        
        OnLog("[Success] StovePC_Init");    
    }
    else
    {
        OnLog("[Error] StovePC_Init, Result %d", ErrorResult.Result);        
    }
    return ErrorResult;
}
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Precautions

The PCSDK log path must be set as an absolute path. ex) C:\Program Files\{Your Game Folder}\Logs Do not add "\" at the end. PCSDK automatically adds the file name "StovePCSDK.log".
If "" is set as an empty string, PCSDK automatically creates a log in the path of the game executable file folder or the folder where the PCSDK DLL is located.

confirm Change YOUR_APP_KEY, YOUR_SECRET_KEY, YOUR_GAME_ID in the code above to the ID and Key-value registered in STOVE Studio (opens new window) in advance. If you call the Super::StoveSDKInit function without logging in to the stove launcher with the stove account applied for entry into STOVE Studio, error code 150 (sgup initialization failure) occurs.

If the return value of the UMyStoveSDKObject::StoveSDKInit function is STOVE_PC_NO_ERROR that is, 'success', enter true in the _isOnCallback value in the UStoveSDKObject::StoveSDKInit function, which is the super class of UMyStoveSDKObject. You will use the UStoveSDKObject::Tick function like a timer.

To check whether the UMyStoveSDKObject::StoveSDKInit function was successfully completed, add OnLog to the callback UMyStoveSDKObject::OnInitComplete function as shown below.

void UMyStoveSDKObject::OnInitComplete()
{
    /*Add the 'walkthrough' codes here.*/

    OnLog("[Success] InitComplete");
}
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If the UMyStoveSDKObject::StoveSDKInit function or any other plugin's function call fails, you can check the error code through the callback UMyStoveSDKObject::OnError function. To check the error code, you can get error information through the FStoveError structure entered as an argument for the UMyStoveSDKObject::OnError function shown below.

MyStoveSDKObject.cpp

void UMyStoveSDKObject::OnError(FStoveError Error)
{
    /*Add the 'walkthrough' codes here.*/

    OnLog("[Error]");
    OnLog("FuncType: %d", Error.FunctionType);
    OnLog("Result: %d", Error.ErrorResult.Result);
    OnLog("ExternalError: %d", Error.ExternalError); 
}
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# SDK Termination

After all usage of the plugin is finished, to clean up the resources, you can release the plugin resource by calling the Super::StoveSDKUnInit function of Super Glass to the UMyStoveSDKObject::StoveSDKUnInit function as shown in the code below.

MyStoveSDKObject.cpp

FStoveResult UMyStoveSDKObject::StoveSDKUnInit()
{
    /*Add the 'walkthrough' codes here.*/

    //SDK Termination
    FStoveResult ErrorResult = Super::StoveSDKUnInit();
    if (ErrorResult.Result == STOVE_PC_NO_ERROR)
    {        
        OnLog("[Success] StovePC_UnInit");    
    }
    else
    {
        OnLog("[Error] StovePC_UnInit, Result %d", ErrorResult.Result);        
    }
     
    return ErrorResult;
}
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# Receive User Information

To get the logged-in user information on the STOVE launcher, request the user information by calling the superclass's Super:: StoveSDKGetUser function in the UMyStoveSDKObject::StoveSDKGetUser function in the calling code below. When you call the Super::StoveSDKGetUser function, it passes user information to the callback OnUser function.

MyStoveSDKObject.cpp

FStoveResult UMyStoveSDKObject::StoveSDKGetUser()
{
    /*Add the 'walkthrough' codes here.*/

    FStoveResult ErrorResult = Super::StoveSDKGetUser();
    if (ErrorResult.Result == STOVE_PC_NO_ERROR)
    {
        OnLog("[Success] StovePC_GetUser");        
    }
    else
    {
        OnLog("[Error] StovePC_GetUser, ErrorResult %d", ErrorResult.Result);
    }
    return ErrorResult;
}
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You obtain user information through the FStoveUser structure, which is an argument of the callback OnUser when you call the UMyStoveSDKObject::StoveSDKGetUser function usually. You can check how to obtain user information through the code below.

MyStoveSDKObject.cpp

void UMyStoveSDKObject::OnUser(FStoveUser User)
{
    /*Add the 'walkthrough' codes here.*/

    OnLog("[User]");
    OnLog("MemberNo : %u", User.MemberNo);
    OnLog("Nickname : %s", *(User.Nickname));
    OnLog("GameUserId: %s", *(User.GameUserId));
    
}
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# Get Token Information

To get token information of the STOVE launcher user, call the UMyStoveSDKObject::StoveSDKGetToken function and the superclass Super::StoveSDKGetToken function to obtain it. After calling the StoveSDKGetToken function, you can check the token information as an argument of the callback OnToken function.

MyStoveSDKObject.cpp

FStoveResult UMyStoveSDKObject::StoveSDKGetToken()
{
    /*Add the 'walkthrough' codes here.*/

    FStoveResult ErrorResult = Super::StoveSDKGetToken();
    if (ErrorResult.Result == StovePCResult::STOVE_PC_NO_ERROR)
    {        
        OnLog("[Success] StovePC_GetToken");
    }
    else
    {
        OnLog("[Error] StovePC_GetToken, Result %d", ErrorResult.Result);       
    }
 
    return ErrorResult;
}
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confirm What is a token? It is the access token of the logged-in user in STOVE Launcher, and the game server passes this access token to the stove authentication server to validate the logged-in user.
For a detailed explanation of Access Token, please get in touch with Contact Stove Indie Team (opens new window) for technical support.

When you call the StoveSDKGetToken function usually, you can check the token information through FStoveToken, the argument of the callback OnToken function.

void UMyStoveSDKObject::OnToken(FStoveToken Token)
{
    /*Add the 'walkthrough' codes here.*/

    OnLog("[Token]");
    OnLog("Token : %s", *(Token.AccessToken));
}
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# Build and execute

After build the HelloStove project, run it. When the UNREAL editor is running, press the Play button on the toolbar to run the demo and check if it usually works by pressing each button displayed on the screen in order.

Figure5

Congratulations!
You have successfully completed the PC SDK Unreal walkthrough.

Last Updated: 7/16/2024, 4:07:47 PM

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