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UObject's Instanced value reset to C++ default value on Play?

Hello everyone,

I'm currently implementing an "Emotion Component" (that inherit from an Actor Component) that have a list of "EmotionGauge" (that inherit from a UObject and FTickableGameObject).

Unfortunately, I'm having a weird problem when I click on the "Play" in the Editor: Some of the value in the EmotionGauge are reset to their default C++ values, and do not take the BP Value into account.

I'll try to be clear as possible: So, I placed a character in my current map, and I'm able to see the default value from C++ correctly: alt text

So now I decide to change these default values in the Character BP: alt text

If I go back to my character in the map I can see that it show the BP value and consider it as the default one: alt text

Now, when I press play, it will get the value from the C++ file, and not from the BP: alt text

Note that if I don't modify the default value in the BP but directly in the instanced character in the map, it takes correctly the value and don't reset it to C++ value

For more info, you can see the implementation below:

So the Emotion Component is an actor component that contains a list of "EmotionGauge", here is the .h:

 UCLASS( ClassGroup=(Custom), meta=(BlueprintSpawnableComponent) )
 class CROWDBEHAVIOR_API UEmotionComponent : public UActorComponent
     // Sets default values for this component's properties
 // ........................
     UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "Emotion", Instanced)
     TArray<UEmotionGauge*> EmotionGaugeList;

So, now in the constructor, I'm filling the Array by creating several "EmotionGauge", here's the .cpp:

 // Sets default values for this component's properties
     // Set this component to be initialized when the game starts, and to be ticked every frame.  You can turn these features
     // off to improve performance if you don't need them.
     PrimaryComponentTick.bCanEverTick = true;
     for (int i = 0; i < (int)EEmotionCategory::COUNT; ++i)
         EEmotionCategory EmotionCategory = (EEmotionCategory)i;
         FString EmotionGaugeName = EnumToString("EEmotionCategory", EmotionCategory) + "Gauge";
         UEmotionGauge* NewEmotionGauge = CreateDefaultSubobject<UEmotionGauge>(FName(*EmotionGaugeName));

So before pressing play, in the BP everything is working fine, the array is filled correctly and for each element I can modify the value contained in the "EmotionGauge", here is EmotionGauge.h:

 class CROWDBEHAVIOR_API UEmotionGauge : public UObject, public FTickableGameObject
     UPROPERTY(EditAnywhere, Category = "Gauge Cooldown")
     bool bDoesValueChangeOverTime = false;
     // In Value/Sec. Represent the speed at which the gauge will tends to the wanted value.
     UPROPERTY(EditAnywhere, Category = "Gauge Cooldown", meta = (EditCondition = "bDoesValueChangeOverTime", ClampMin="0.0"))
     float ModifyingRate = 1.f;
     // Represent the value the gauge will tends to over time.
     UPROPERTY(EditAnywhere, Category = "Gauge Cooldown", meta = (EditCondition = "bDoesValueChangeOverTime"))
     float TargetValueForCooldown = 0.f;
     UPROPERTY(EditAnywhere, Category = "Gauge Cooldown", meta = (EditCondition = "bDoesValueChangeOverTime", ClampMin = "0.0"))
     float DelayForTriggeringCooldown = 5.f;
     UPROPERTY(VisibleAnywhere, Category = "Gauge Cooldown")
     float CooldownRemainingDelay = 1.f;

Does anyone know what's going on?

Thank you

Product Version: UE 4.22
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asked Jun 13 '19 at 07:32 PM in C++ Programming

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