如何創建與藍圖一起使用的自定義 C++ 類

Question

我正在嘗試創建一個自定義類，然后可以在我的藍圖中使用它。 我需要這個類來保存玩家信息，比如姓名和他們圖片的路徑。 到目前為止我所做的沒有編譯或構建沒有錯誤，我不知道如何修復它，因為我從未使用過它

header file #pragma once

#include "Object.h"
#include <iostream>
#include "PlayerClass.generated.h"

/**
 * 
 */
UCLASS()
class PROTOTYPE2_API UPlayerClass : public UObject
{
 GENERATED_BODY()
public:
 UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Switch Variables");
 string playerName;
 UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Switch Variables")
 string playerTeam;
 UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Switch Variables")
 string picPath;
 UPlayerClass(const FObjectInitializer& ObjectInitializer);
 UFUNCTION()
 void importPic(string picPath);


};

.cpp 文件

#include "Prototype2.h"
#include "PlayerClass.h"

UPlayerClass::UPlayerClass(const FObjectInitializer& ObjectInitializer)
: Super(ObjectInitializer)
{
   playerName = "";
   playerTeam = "";
   picPath = "";
}

void UPlayerClass::importPic_Implementation(Fstring picPath)
{

}

Answer 1

我發現我的 importPic 函數需要

UFUNCTION(BlueprintCallable, Category = "Import")
 virtual void ImportPic(const FString& Path);

並且根據您是否希望您的類顯示為藍圖變量或能夠成為藍圖類，您可以將頂部標題更改為

UCLASS(BlueprintType) // for blueprint to show up as variable
UCLASS(Bleuprintable) // for blueprint to be able to be made as a blueprint class

構建和編譯的代碼：

頭文件

#pragma once

#include "Object.h"

#include "PlayerClass.generated.h"

UCLASS(BlueprintType)
class PROTOTYPE2_API UPlayerClass : public UObject
{
   GENERATED_BODY()
public:
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Player Variables")
FString playerName;
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Player Variables")
FString playerTeam;
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Player Variables")
FString picPath;
UPlayerClass(const FObjectInitializer& ObjectInitializer);
UFUNCTION(BlueprintCallable, Category = "Import")
virtual void ImportPic(const FString& Path);


};

.cpp -

#include "Prototype2.h"
#include "PlayerClass.h"

UPlayerClass::UPlayerClass(const FObjectInitializer& ObjectInitializer)
: Super(ObjectInitializer)
{
   playerName = "";
   playerTeam = "";
   picPath = "";
}

void UPlayerClass::ImportPic(const FString& Path)
{

}