void UAbilitySystemBlueprintLibrary::SendGameplayEventToActor(AActor* Actor, FGameplayTag EventTag, FGameplayEventData Payload)
{
if (Actor && !Actor->IsPendingKill())
{
IAbilitySystemInterface* AbilitySystemInterface = Cast<IAbilitySystemInterface>(Actor);
if (AbilitySystemInterface != NULL)
{
UAbilitySystemComponent* AbilitySystemComponent = AbilitySystemInterface->GetAbilitySystemComponent();
if (AbilitySystemComponent != NULL)
{
FScopedPredictionWindow NewScopedWindow(AbilitySystemComponent, true);
AbilitySystemComponent->HandleGameplayEvent(EventTag, &Payload);
}
}
}
}
void FAggregator::BroadcastOnDirty()
{
// If we are batching on Dirty calls (and we actually have dependents registered with us) then early out.
if (FScopedAggregatorOnDirtyBatch::GlobalBatchCount > 0 && (Dependents.Num() > 0 || OnDirty.IsBound()))
{
FScopedAggregatorOnDirtyBatch::DirtyAggregators.Add(this);
return;
}
if (IsBroadcastingDirty)
{
// Apologies for the vague warning but its very hard from this spot to call out what data has caused this. If this frequently happens we should improve this.
ABILITY_LOG(Warning, TEXT("FAggregator detected cyclic attribute dependencies. We are skipping a recursive dirty call. Its possible the resulting attribute values are not what you expect!"));
return;
}
TGuardValue<bool> Guard(IsBroadcastingDirty, true);
OnDirty.Broadcast(this);
TArray<FActiveGameplayEffectHandle> ValidDependents;
for (FActiveGameplayEffectHandle Handle : Dependents)
{
UAbilitySystemComponent* ASC = Handle.GetOwningAbilitySystemComponent();
if (ASC)
{
ASC->OnMagnitudeDependencyChange(Handle, this);
ValidDependents.Add(Handle);
}
}
Dependents = ValidDependents;
}
void UAbilityTask_WaitGameplayEffectRemoved::Activate()
{
if (Handle.IsValid() == false)
{
InvalidHandle.Broadcast();
EndTask();
return;;
}
UAbilitySystemComponent* EffectOwningAbilitySystemComponent = Handle.GetOwningAbilitySystemComponent();
if (EffectOwningAbilitySystemComponent)
{
FOnActiveGameplayEffectRemoved* DelPtr = EffectOwningAbilitySystemComponent->OnGameplayEffectRemovedDelegate(Handle);
if (DelPtr)
{
OnGameplayEffectRemovedDelegateHandle = DelPtr->AddUObject(this, &UAbilityTask_WaitGameplayEffectRemoved::OnGameplayEffectRemoved);
Registered = true;
}
}
if (!Registered)
{
// GameplayEffect was already removed, treat this as a warning? Could be cases of immunity or chained gameplay rules that would instant remove something
OnGameplayEffectRemoved();
}
}
void FGameplayAbilitiesModule::GetActiveAbilitiesDebugDataForActor(AActor* Actor, FString& AbilityString, bool& bIsUsingAbilities)
{
UAbilitySystemComponent* AbilityComp = Actor->FindComponentByClass<UAbilitySystemComponent>();
bIsUsingAbilities = (AbilityComp != nullptr);
int32 NumActive = 0;
if (AbilityComp)
{
AbilityString = TEXT("");
for (const FGameplayAbilitySpec& AbilitySpec : AbilityComp->GetActivatableAbilities())
{
if (AbilitySpec.Ability && AbilitySpec.IsActive())
{
if (NumActive)
{
AbilityString += TEXT(", ");
}
UClass* AbilityClass = AbilitySpec.Ability->GetClass();
FString AbClassName = GetNameSafe(AbilityClass);
AbClassName.RemoveFromEnd(TEXT("_c"));
AbilityString += AbClassName;
NumActive++;
}
}
}
if (NumActive == 0)
{
AbilityString = TEXT("None");
}
}
void AGameplayAbilityTargetActor::BindToConfirmCancelInputs()
{
check(OwningAbility);
UAbilitySystemComponent* ASC = OwningAbility->GetCurrentActorInfo()->AbilitySystemComponent.Get();
if (ASC)
{
const FGameplayAbilityActorInfo* Info = OwningAbility->GetCurrentActorInfo();
if (Info->IsLocallyControlled())
{
// We have to wait for the callback from the AbilitySystemComponent. Which will always be instigated locally
ASC->GenericLocalConfirmCallbacks.AddDynamic(this, &AGameplayAbilityTargetActor::ConfirmTargeting); // Tell me if the confirm input is pressed
ASC->GenericLocalCancelCallbacks.AddDynamic(this, &AGameplayAbilityTargetActor::CancelTargeting); // Tell me if the cancel input is pressed
}
else
{
FGameplayAbilitySpecHandle Handle = OwningAbility->GetCurrentAbilitySpecHandle();
FPredictionKey PredKey = OwningAbility->GetCurrentActivationInfo().GetActivationPredictionKey();
GenericConfirmHandle = ASC->AbilityReplicatedEventDelegate(EAbilityGenericReplicatedEvent::GenericConfirm, Handle, PredKey ).AddUObject(this, &AGameplayAbilityTargetActor::ConfirmTargeting);
GenericCancelHandle = ASC->AbilityReplicatedEventDelegate(EAbilityGenericReplicatedEvent::GenericCancel, Handle, PredKey ).AddUObject(this, &AGameplayAbilityTargetActor::CancelTargeting);
if (ASC->CallReplicatedEventDelegateIfSet(EAbilityGenericReplicatedEvent::GenericConfirm, Handle, PredKey))
{
return;
}
if (ASC->CallReplicatedEventDelegateIfSet(EAbilityGenericReplicatedEvent::GenericCancel, Handle, PredKey))
{
return;
}
}
}
}
/** Outside code is saying 'stop everything and just forget about it' */
void AGameplayAbilityTargetActor::CancelTargeting()
{
UAbilitySystemComponent* ASC = OwningAbility->GetCurrentActorInfo()->AbilitySystemComponent.Get();
ASC->AbilityReplicatedEventDelegate(EAbilityGenericReplicatedEvent::GenericCancel, OwningAbility->GetCurrentAbilitySpecHandle(), OwningAbility->GetCurrentActivationInfo().GetActivationPredictionKey() ).Remove(GenericCancelHandle);
CanceledDelegate.Broadcast(FGameplayAbilityTargetDataHandle());
Destroy();
}
int32 UAbilitySystemBlueprintLibrary::GetActiveGameplayEffectStackCount(FActiveGameplayEffectHandle ActiveHandle)
{
UAbilitySystemComponent* ASC = ActiveHandle.GetOwningAbilitySystemComponent();
if (ASC)
{
return ASC->GetCurrentStackCount(ActiveHandle);
}
return 0;
}
FString UAbilitySystemBlueprintLibrary::GetActiveGameplayEffectDebugString(FActiveGameplayEffectHandle ActiveHandle)
{
FString Str;
UAbilitySystemComponent* ASC = ActiveHandle.GetOwningAbilitySystemComponent();
if (ASC)
{
Str = ASC->GetActiveGEDebugString(ActiveHandle);
}
return Str;
}
int32 UAbilitySystemBlueprintLibrary::GetActiveGameplayEffectStackLimitCount(FActiveGameplayEffectHandle ActiveHandle)
{
UAbilitySystemComponent* ASC = ActiveHandle.GetOwningAbilitySystemComponent();
if (ASC)
{
const UGameplayEffect* ActiveGE = ASC->GetGameplayEffectDefForHandle(ActiveHandle);
if (ActiveGE)
{
return ActiveGE->StackLimitCount;
}
}
return 0;
}
void UAbilityTask_WaitGameplayEffectStackChange::OnDestroy(bool AbilityIsEnding)
{
UAbilitySystemComponent* EffectOwningAbilitySystemComponent = Handle.GetOwningAbilitySystemComponent();
if (EffectOwningAbilitySystemComponent && OnGameplayEffectStackChangeDelegateHandle.IsValid())
{
FOnActiveGameplayEffectRemoved* DelPtr = EffectOwningAbilitySystemComponent->OnGameplayEffectRemovedDelegate(Handle);
if (DelPtr)
{
DelPtr->Remove(OnGameplayEffectStackChangeDelegateHandle);
}
}
Super::OnDestroy(AbilityIsEnding);
}
void AGameplayAbilityTargetActor::ConfirmTargeting()
{
UAbilitySystemComponent* ASC = OwningAbility->GetCurrentActorInfo()->AbilitySystemComponent.Get();
ASC->AbilityReplicatedEventDelegate(EAbilityGenericReplicatedEvent::GenericConfirm, OwningAbility->GetCurrentAbilitySpecHandle(), OwningAbility->GetCurrentActivationInfo().GetActivationPredictionKey() ).Remove(GenericConfirmHandle);
if (IsConfirmTargetingAllowed())
{
ConfirmTargetingAndContinue();
if (bDestroyOnConfirmation)
{
Destroy();
}
}
}
void UAbilityTask_WaitGameplayTagRemoved::Activate()
{
UAbilitySystemComponent* ASC = GetTargetASC();
if (ASC && ASC->HasMatchingGameplayTag(Tag) == false)
{
Removed.Broadcast();
if(OnlyTriggerOnce)
{
EndTask();
return;
}
}
Super::Activate();
}
/** Outside code is saying 'stop everything and just forget about it' */
void AGameplayAbilityTargetActor::CancelTargeting()
{
const FGameplayAbilityActorInfo* ActorInfo = (OwningAbility ? OwningAbility->GetCurrentActorInfo() : nullptr);
UAbilitySystemComponent* ASC = (ActorInfo ? ActorInfo->AbilitySystemComponent.Get() : nullptr);
if (ASC)
{
ASC->AbilityReplicatedEventDelegate(EAbilityGenericReplicatedEvent::GenericCancel, OwningAbility->GetCurrentAbilitySpecHandle(), OwningAbility->GetCurrentActivationInfo().GetActivationPredictionKey() ).Remove(GenericCancelHandle);
}
else
{
ABILITY_LOG(Warning, TEXT("AGameplayAbilityTargetActor::CancelTargeting called with null ASC! Actor %s"), *GetName());
}
CanceledDelegate.Broadcast(FGameplayAbilityTargetDataHandle());
Destroy();
}
// TODO: polymorphic payload
void UGameplayAbility::SendGameplayEvent(FGameplayTag EventTag, FGameplayEventData Payload)
{
if (NetExecutionPolicy == EGameplayAbilityNetExecutionPolicy::Predictive)
{
Payload.PredictionKey = CurrentActivationInfo.GetPredictionKeyForNewAction();
}
AActor *OwnerActor = Cast<AActor>(GetOuter());
if (OwnerActor)
{
UAbilitySystemComponent* AbilitySystemComponent = OwnerActor->FindComponentByClass<UAbilitySystemComponent>();
if (ensure(AbilitySystemComponent))
{
AbilitySystemComponent->HandleGameplayEvent(EventTag, &Payload);
}
}
}
void UGameplayAbility::PreActivate(const FGameplayAbilitySpecHandle Handle, const FGameplayAbilityActorInfo* ActorInfo, const FGameplayAbilityActivationInfo ActivationInfo, FOnGameplayAbilityEnded* OnGameplayAbilityEndedDelegate)
{
UAbilitySystemComponent* Comp = ActorInfo->AbilitySystemComponent.Get();
bIsActive = true;
Comp->CancelAbilities(&CancelAbilitiesWithTag, nullptr, this);
Comp->BlockAbilitiesWithTags(BlockAbilitiesWithTag);
if (OnGameplayAbilityEndedDelegate)
{
OnGameplayAbilityEnded = *OnGameplayAbilityEndedDelegate;
}
Comp->NotifyAbilityActivated(Handle, this);
}
void UAbilityTask_WaitGameplayEffectStackChange::Activate()
{
if (Handle.IsValid() == false)
{
InvalidHandle.Broadcast(Handle, 0, 0);
EndTask();
return;;
}
UAbilitySystemComponent* EffectOwningAbilitySystemComponent = Handle.GetOwningAbilitySystemComponent();
if (EffectOwningAbilitySystemComponent)
{
FOnActiveGameplayEffectStackChange* DelPtr = EffectOwningAbilitySystemComponent->OnGameplayEffectStackChangeDelegate(Handle);
if (DelPtr)
{
OnGameplayEffectStackChangeDelegateHandle = DelPtr->AddUObject(this, &UAbilityTask_WaitGameplayEffectStackChange::OnGameplayEffectStackChange);
Registered = true;
}
}
}
void AGameplayAbilityTargetActor::ConfirmTargeting()
{
const FGameplayAbilityActorInfo* ActorInfo = (OwningAbility ? OwningAbility->GetCurrentActorInfo() : nullptr);
UAbilitySystemComponent* ASC = (ActorInfo ? ActorInfo->AbilitySystemComponent.Get() : nullptr);
if (ASC)
{
ASC->AbilityReplicatedEventDelegate(EAbilityGenericReplicatedEvent::GenericConfirm, OwningAbility->GetCurrentAbilitySpecHandle(), OwningAbility->GetCurrentActivationInfo().GetActivationPredictionKey() ).Remove(GenericConfirmHandle);
}
else
{
ABILITY_LOG(Warning, TEXT("AGameplayAbilityTargetActor::ConfirmTargeting called with null Ability/ASC! Actor %s"), *GetName());
}
if (IsConfirmTargetingAllowed())
{
ConfirmTargetingAndContinue();
if (bDestroyOnConfirmation)
{
Destroy();
}
}
}
void UGameplayEffectExtension_LifestealTest::PostGameplayEffectExecute(const FGameplayModifierEvaluatedData &SelfData, const FGameplayEffectModCallbackData &Data) const
{
IGameplayTagsModule& GameplayTagsModule = IGameplayTagsModule::Get();
float DamageDone = Data.EvaluatedData.Magnitude;
float LifestealPCT = SelfData.Magnitude;
float HealthToRestore = -DamageDone * LifestealPCT;
if (HealthToRestore > 0.f)
{
UAbilitySystemComponent *Source = Data.EffectSpec.GetContext().GetOriginalInstigatorAbilitySystemComponent();
UGameplayEffect * LocalHealthRestore = HealthRestoreGameplayEffect;
if (!LocalHealthRestore)
{
UProperty *HealthProperty = FindFieldChecked<UProperty>(UAbilitySystemTestAttributeSet::StaticClass(), GET_MEMBER_NAME_CHECKED(UAbilitySystemTestAttributeSet, Health));
// Since this is a test class and we don't want to tie it any actual content assets, just construct a GameplayEffect here.
LocalHealthRestore = NewObject<UGameplayEffect>(GetTransientPackage(), FName(TEXT("LifestealHealthRestore")));
LocalHealthRestore->Modifiers.SetNum(1);
LocalHealthRestore->Modifiers[0].Magnitude.SetValue(HealthToRestore);
LocalHealthRestore->Modifiers[0].ModifierOp = EGameplayModOp::Additive;
LocalHealthRestore->Modifiers[0].Attribute.SetUProperty(HealthProperty);
LocalHealthRestore->DurationPolicy = EGameplayEffectDurationType::Instant;
LocalHealthRestore->Period.Value = UGameplayEffect::NO_PERIOD;
}
if (SelfData.Handle.IsValid())
{
// We are coming from an active gameplay effect
check(SelfData.Handle.IsValid());
}
// Apply a GameplayEffect to restore health
// We make the GameplayEffect's level = the health restored. This is one approach. We could also
// try a basic restore 1 health item but apply a 2nd GE to modify that - but that seems like too many levels of indirection
Source->ApplyGameplayEffectToSelf(LocalHealthRestore, HealthToRestore, Source->MakeEffectContext());
}
}