UE4-【C++/蓝图】【UE4 C++ SpawnActor创建蓝图对象】

Bertha 。 2023-06-11 03:19 139阅读 0赞

方式一：

UPROPERTY(EditAnywhere)
    TSubclassOf<class APickupAndRotateActor> ObjectToSpawn;
    
    FSCPSceneItemsDataStruct scene_item = SCPGAMEINSTANCE(this)->JsonStaticDataManager->SCPSceneItems->GetDataStruct("1001002");
    FVector location = FVector(scene_item.LocationX, scene_item.LocationY, scene_item.LocationZ);
    FRotator rotation = FRotator(scene_item.RotationX, scene_item.RotationY, scene_item.RotationZ);
    AActor* NewActor1 = GetWorld()->SpawnActor(ObjectToSpawn, &location, &rotation);

方式二：

FString path = "/Game/GameRes/Entity/PickUpItem.PickUpItem_C";
    TSubclassOf<APickupAndRotateActor> item = TSoftClassPtr<APickupAndRotateActor>(path).LoadSynchronous();
    if (item != nullptr)
    {
    	FSCPSceneItemsDataStruct scene_item = SCPGAMEINSTANCE(this)->JsonStaticDataManager->SCPSceneItems->GetDataStruct("1002002");
    	FVector location2 = FVector(scene_item.LocationX, scene_item.LocationY, scene_item.LocationZ);
    	FRotator rotation2 = FRotator(scene_item.RotationX, scene_item.RotationY, scene_item.RotationZ);
    	AActor* NewActor2 = GetWorld()->SpawnActor(item, &location2, &rotation2);
    }

方式三：

UPROPERTY()
    UClass* something_object;
    
    ConstructorHelpers::FObjectFinder<UClass> BPFinder(TEXT("Blueprint'/Game/GameRes/Entity/PickUpItem.PickUpItem_C'"));
    if (BPFinder.Succeeded())
    	something_object = BPFinder.Object;
    
    if (something_object)
    {
    	FSCPSceneItemsDataStruct scene_item = SCPGAMEINSTANCE(this)->JsonStaticDataManager->SCPSceneItems->GetDataStruct("1002001");
    	FVector location3 = FVector(scene_item.LocationX, scene_item.LocationY, scene_item.LocationZ);
    	FRotator rotation3 = FRotator(scene_item.RotationX, scene_item.RotationY, scene_item.RotationZ);		
    	AActor* NewActor3 = GetWorld()->SpawnActor(something_object, &location3, &rotation3);
    }

注意第三种方式的FObjectFinder只能在构造函数里！