bool UGameplayTagsManager::AddLeafTagToContainer(FGameplayTagContainer& TagContainer, FGameplayTag& Tag)
{
// Check tag is not already in container
if (TagContainer.HasTag(Tag, EGameplayTagMatchType::Explicit, EGameplayTagMatchType::Explicit))
{
return true;
}
// Check tag is not just a parent of an existing tag in the container
for (auto It = TagContainer.CreateConstIterator(); It; ++It)
{
FGameplayTagContainer ParentTags = RequestGameplayTagParents(*It);
if (ParentTags.HasTag(Tag, EGameplayTagMatchType::Explicit, EGameplayTagMatchType::Explicit))
{
return false;
}
}
// Remove any tags in the container that are a parent to this tag
FGameplayTagContainer ParentTags = RequestGameplayTagParents(Tag);
for (auto It = ParentTags.CreateConstIterator(); It; ++It)
{
if (TagContainer.HasTag(*It, EGameplayTagMatchType::Explicit, EGameplayTagMatchType::Explicit))
{
TagContainer.RemoveTag(*It);
}
}
// Add the tag
TagContainer.AddTag(Tag);
return true;
}
void SGameplayTagWidget::VerifyAssetTagValidity()
{
FGameplayTagContainer LibraryTags;
// Create a set that is the library of all valid tags
TArray< TSharedPtr<FGameplayTagNode> > NodeStack;
UGameplayTagsManager& TagsManager = IGameplayTagsModule::Get().GetGameplayTagsManager();
TagsManager.GetFilteredGameplayRootTags(TEXT(""), NodeStack);
while (NodeStack.Num() > 0)
{
TSharedPtr<FGameplayTagNode> CurNode = NodeStack.Pop();
if (CurNode.IsValid())
{
LibraryTags.AddTag(TagsManager.RequestGameplayTag(CurNode->GetCompleteTag()));
NodeStack.Append(CurNode->GetChildTagNodes());
}
}
// Find and remove any tags on the asset that are no longer in the library
for (int32 ContainerIdx = 0; ContainerIdx < TagContainers.Num(); ++ContainerIdx)
{
UObject* OwnerObj = TagContainers[ContainerIdx].TagContainerOwner.Get();
FGameplayTagContainer* Container = TagContainers[ContainerIdx].TagContainer;
if (Container)
{
FGameplayTagContainer EditableContainer = *Container;
FGameplayTagContainer InvalidTags;
for (auto It = Container->CreateConstIterator(); It; ++It)
{
if (!LibraryTags.HasTag(*It, EGameplayTagMatchType::Explicit, EGameplayTagMatchType::Explicit))
{
InvalidTags.AddTag(*It);
}
}
if (InvalidTags.Num() > 0)
{
FString InvalidTagNames;
for (auto InvalidIter = InvalidTags.CreateConstIterator(); InvalidIter; ++InvalidIter)
{
EditableContainer.RemoveTag(*InvalidIter);
InvalidTagNames += InvalidIter->ToString() + TEXT("\n");
}
SetContainer(Container, &EditableContainer, OwnerObj);
FFormatNamedArguments Arguments;
Arguments.Add(TEXT("Objects"), FText::FromString( InvalidTagNames ));
FText DialogText = FText::Format( LOCTEXT("GameplayTagWidget_InvalidTags", "Invalid Tags that have been removed: \n\n{Objects}"), Arguments );
OpenMsgDlgInt( EAppMsgType::Ok, DialogText, LOCTEXT("GameplayTagWidget_Warning", "Warning") );
}
}
}
}
void SGameplayTagWidget::OnTagUnchecked(TSharedPtr<FGameplayTagNode> NodeUnchecked)
{
FScopedTransaction Transaction( LOCTEXT("GameplayTagWidget_RemoveTags", "Remove Gameplay Tags"));
if (NodeUnchecked.IsValid())
{
UGameplayTagsManager& TagsManager = IGameplayTagsModule::Get().GetGameplayTagsManager();
for (int32 ContainerIdx = 0; ContainerIdx < TagContainers.Num(); ++ContainerIdx)
{
UObject* OwnerObj = TagContainers[ContainerIdx].TagContainerOwner.Get();
FGameplayTagContainer* Container = TagContainers[ContainerIdx].TagContainer;
FGameplayTag Tag = TagsManager.RequestGameplayTag(NodeUnchecked->GetCompleteTag());
if (Container)
{
FGameplayTagContainer EditableContainer = *Container;
EditableContainer.RemoveTag(Tag);
TWeakPtr<FGameplayTagNode> ParentNode = NodeUnchecked->GetParentTagNode();
if (ParentNode.IsValid())
{
// Check if there are other siblings before adding parent
bool bOtherSiblings = false;
for (auto It = ParentNode.Pin()->GetChildTagNodes().CreateConstIterator(); It; ++It)
{
Tag = TagsManager.RequestGameplayTag(It->Get()->GetCompleteTag());
if (EditableContainer.HasTag(Tag, EGameplayTagMatchType::Explicit, EGameplayTagMatchType::Explicit))
{
bOtherSiblings = true;
break;
}
}
// Add Parent
if (!bOtherSiblings)
{
Tag = TagsManager.RequestGameplayTag(ParentNode.Pin()->GetCompleteTag());
EditableContainer.AddTag(Tag);
}
}
// Uncheck Children
for (const auto& ChildNode : NodeUnchecked->GetChildTagNodes())
{
UncheckChildren(ChildNode, EditableContainer);
}
SetContainer(Container, &EditableContainer, OwnerObj);
}
}
}
}
void SGameplayTagWidget::UncheckChildren(TSharedPtr<FGameplayTagNode> NodeUnchecked, FGameplayTagContainer& EditableContainer)
{
UGameplayTagsManager& TagsManager = IGameplayTagsModule::Get().GetGameplayTagsManager();
FGameplayTag Tag = TagsManager.RequestGameplayTag(NodeUnchecked->GetCompleteTag());
EditableContainer.RemoveTag(Tag);
// Uncheck Children
for (const auto& ChildNode : NodeUnchecked->GetChildTagNodes())
{
UncheckChildren(ChildNode, EditableContainer);
}
}
void SGameplayTagWidget::OnTagChecked(TSharedPtr<FGameplayTagNode> NodeChecked)
{
FScopedTransaction Transaction( LOCTEXT("GameplayTagWidget_AddTags", "Add Gameplay Tags") );
UGameplayTagsManager& TagsManager = IGameplayTagsModule::Get().GetGameplayTagsManager();
for (int32 ContainerIdx = 0; ContainerIdx < TagContainers.Num(); ++ContainerIdx)
{
TWeakPtr<FGameplayTagNode> CurNode(NodeChecked);
UObject* OwnerObj = TagContainers[ContainerIdx].TagContainerOwner.Get();
FGameplayTagContainer* Container = TagContainers[ContainerIdx].TagContainer;
if (Container)
{
FGameplayTagContainer EditableContainer = *Container;
bool bRemoveParents = false;
while (CurNode.IsValid())
{
FGameplayTag Tag = TagsManager.RequestGameplayTag(CurNode.Pin()->GetCompleteTag());
if (bRemoveParents == false)
{
bRemoveParents = true;
if (bMultiSelect == false)
{
EditableContainer.RemoveAllTags();
}
EditableContainer.AddTag(Tag);
}
else
{
EditableContainer.RemoveTag(Tag);
}
CurNode = CurNode.Pin()->GetParentTagNode();
}
SetContainer(Container, &EditableContainer, OwnerObj);
}
}
}