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Listening for Attribute Changes

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This commit is contained in:
Jonathan Rampersad
2025-06-08 20:19:25 -04:00
parent 19d9c51014
commit d89f6e1b19
6 changed files with 52 additions and 3 deletions
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4
Source/Aura/Private/AbilitySystem/AuraAttributeSet.cpp
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@ -6,9 +6,9 @@
UAuraAttributeSet::UAuraAttributeSet() UAuraAttributeSet::UAuraAttributeSet()
{ {
InitHealth(100.f); InitHealth(50.f);
InitMaxHealth(100.f); InitMaxHealth(100.f);
InitMana(50.f); InitMana(25.f);
InitMaxMana(50.f); InitMaxMana(50.f);
} }

1
Source/Aura/Private/UI/HUD/AuraHUD.cpp
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@ -14,6 +14,7 @@ UOverlayWidgetController* AAuraHUD::GetOverlayWidgetController(const FWidgetCont
OverlayWidgetController = NewObject<UOverlayWidgetController>(this, OverlayWidgetControllerClass); OverlayWidgetController = NewObject<UOverlayWidgetController>(this, OverlayWidgetControllerClass);
OverlayWidgetController->SetWidgetControllerParams(WCParams); OverlayWidgetController->SetWidgetControllerParams(WCParams);
OverlayWidgetController->BindCallbacksToDependencies();
return OverlayWidgetController; return OverlayWidgetController;
} }

4
Source/Aura/Private/UI/WidgetController/AuraWidgetController.cpp
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@ -14,3 +14,7 @@ void UAuraWidgetController::SetWidgetControllerParams(const FWidgetControllerPar
void UAuraWidgetController::BroadcastInitialValues() void UAuraWidgetController::BroadcastInitialValues()
{ {
} }
void UAuraWidgetController::BindCallbacksToDependencies()
{
}

37
Source/Aura/Private/UI/WidgetController/OverlayWidgetController.cpp
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@ -13,3 +13,40 @@ void UOverlayWidgetController::BroadcastInitialValues()
OnManaChanged.Broadcast(AuraAttributeSet->GetMana()); OnManaChanged.Broadcast(AuraAttributeSet->GetMana());
OnMaxManaChanged.Broadcast(AuraAttributeSet->GetMaxMana()); OnMaxManaChanged.Broadcast(AuraAttributeSet->GetMaxMana());
} }
void UOverlayWidgetController::BindCallbacksToDependencies()
{
const UAuraAttributeSet* AuraAttributeSet = CastChecked<UAuraAttributeSet>(AttributeSet);
AbilitySystemComponent->GetGameplayAttributeValueChangeDelegate(
AuraAttributeSet->GetHealthAttribute()).AddUObject(this, &UOverlayWidgetController::HealthChanged);
AbilitySystemComponent->GetGameplayAttributeValueChangeDelegate(
AuraAttributeSet->GetMaxHealthAttribute()).AddUObject(this, &UOverlayWidgetController::MaxHealthChanged);
AbilitySystemComponent->GetGameplayAttributeValueChangeDelegate(
AuraAttributeSet->GetManaAttribute()).AddUObject(this, &UOverlayWidgetController::ManaChanged);
AbilitySystemComponent->GetGameplayAttributeValueChangeDelegate(
AuraAttributeSet->GetMaxManaAttribute()).AddUObject(this, &UOverlayWidgetController::MaxManaChanged);
}
void UOverlayWidgetController::HealthChanged(const FOnAttributeChangeData& Data) const
{
OnHealthChanged.Broadcast(Data.NewValue);
}
void UOverlayWidgetController::MaxHealthChanged(const FOnAttributeChangeData& Data) const
{
OnMaxHealthChanged.Broadcast(Data.NewValue);
}
void UOverlayWidgetController::ManaChanged(const FOnAttributeChangeData& Data) const
{
OnManaChanged.Broadcast(Data.NewValue);
}
void UOverlayWidgetController::MaxManaChanged(const FOnAttributeChangeData& Data) const
{
OnMaxManaChanged.Broadcast(Data.NewValue);
}

2
Source/Aura/Public/UI/WidgetController/AuraWidgetController.h
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@ -46,7 +46,7 @@ public:
void SetWidgetControllerParams(const FWidgetControllerParams& Params); void SetWidgetControllerParams(const FWidgetControllerParams& Params);
virtual void BroadcastInitialValues(); virtual void BroadcastInitialValues();
virtual void BindCallbacksToDependencies();
protected: protected:
UPROPERTY(BlueprintReadOnly, Category="WidgetController") UPROPERTY(BlueprintReadOnly, Category="WidgetController")
TObjectPtr<APlayerController> PlayerController; TObjectPtr<APlayerController> PlayerController;

7
Source/Aura/Public/UI/WidgetController/OverlayWidgetController.h
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@ -22,6 +22,7 @@ class AURA_API UOverlayWidgetController : public UAuraWidgetController
public: public:
virtual void BroadcastInitialValues() override; virtual void BroadcastInitialValues() override;
virtual void BindCallbacksToDependencies() override;
UPROPERTY(BlueprintAssignable, Category="GAS|Attributes") UPROPERTY(BlueprintAssignable, Category="GAS|Attributes")
FOnHealthChangedSignature OnHealthChanged; FOnHealthChangedSignature OnHealthChanged;
@ -34,4 +35,10 @@ public:
UPROPERTY(BlueprintAssignable, Category="GAS|Attributes") UPROPERTY(BlueprintAssignable, Category="GAS|Attributes")
FOnMaxManaChangedSignature OnMaxManaChanged; FOnMaxManaChangedSignature OnMaxManaChanged;
protected:
void HealthChanged(const FOnAttributeChangeData& Data) const;
void MaxHealthChanged(const FOnAttributeChangeData& Data) const;
void ManaChanged(const FOnAttributeChangeData& Data) const;
void MaxManaChanged(const FOnAttributeChangeData& Data) const;
}; };