FGameplayAbilityTargetDataHandle UAbilitySystemBlueprintLibrary::FilterTargetData(FGameplayAbilityTargetDataHandle TargetDataHandle, FGameplayTargetDataFilterHandle FilterHandle)
{
FGameplayAbilityTargetDataHandle ReturnDataHandle;
for (int32 i = 0; TargetDataHandle.IsValid(i); ++i)
{
FGameplayAbilityTargetData* UnfilteredData = TargetDataHandle.Get(i);
check(UnfilteredData);
if (UnfilteredData->GetActors().Num() > 0)
{
TArray<TWeakObjectPtr<AActor>> FilteredActors = UnfilteredData->GetActors().FilterByPredicate(FilterHandle);
if (FilteredActors.Num() > 0)
{
//Copy the data first, since we don't understand the internals of it
UScriptStruct* ScriptStruct = UnfilteredData->GetScriptStruct();
FGameplayAbilityTargetData* NewData = (FGameplayAbilityTargetData*)FMemory::Malloc(ScriptStruct->GetCppStructOps()->GetSize());
ScriptStruct->InitializeStruct(NewData);
ScriptStruct->CopyScriptStruct(NewData, UnfilteredData);
ReturnDataHandle.Data.Add(TSharedPtr<FGameplayAbilityTargetData>(NewData));
if (FilteredActors.Num() < UnfilteredData->GetActors().Num())
{
//We have lost some, but not all, of our actors, so replace the array. This should only be possible with targeting types that permit actor-array setting.
if (!NewData->SetActors(FilteredActors))
{
//This is an error, though we could ignore it. We somehow filtered out part of a list, but the class doesn't support changing the list, so now it's all or nothing.
check(false);
}
}
}
}
}
return ReturnDataHandle;
}
bool UAbilitySystemBlueprintLibrary::TargetDataHasActor(FGameplayAbilityTargetDataHandle TargetData, int32 Index)
{
if (TargetData.Data.IsValidIndex(Index))
{
FGameplayAbilityTargetData* Data = TargetData.Data[Index].Get();
if (Data)
{
return (Data->GetActors().Num() > 0);
}
}
return false;
}
bool UAbilitySystemBlueprintLibrary::DoesTargetDataContainActor(FGameplayAbilityTargetDataHandle TargetData, int32 Index, AActor* Actor)
{
if (TargetData.Data.IsValidIndex(Index))
{
FGameplayAbilityTargetData* Data = TargetData.Data[Index].Get();
if (Data)
{
for (auto DataActorIter : Data->GetActors())
{
if (DataActorIter == Actor)
{
return true;
}
}
}
}
return false;
}
TArray<AActor*> UAbilitySystemBlueprintLibrary::GetActorsFromTargetData(FGameplayAbilityTargetDataHandle TargetData, int32 Index)
{
if (TargetData.Data.IsValidIndex(Index))
{
FGameplayAbilityTargetData* Data = TargetData.Data[Index].Get();
TArray<AActor*> ResolvedArray;
if (Data)
{
TArray<TWeakObjectPtr<AActor> > WeakArray = Data->GetActors();
for (TWeakObjectPtr<AActor> WeakPtr : WeakArray)
{
ResolvedArray.Add(WeakPtr.Get());
}
}
return ResolvedArray;
}
return TArray<AActor*>();
}