void UAnimationGraphSchema::GetStateMachineMenuItems(FGraphContextMenuBuilder& ContextMenuBuilder) const
{
// Show state machine helpers
if ((ContextMenuBuilder.FromPin == NULL) || ((ContextMenuBuilder.FromPin->Direction == EGPD_Input) && (ContextMenuBuilder.FromPin->PinType.PinCategory == PC_Float)))
{
FString StateCategory(TEXT("State Machines"));
// Create the additional entries to get state information
TArray<UAnimStateNode*> States;
UBlueprint* CurrentBlueprint = FBlueprintEditorUtils::FindBlueprintForGraphChecked(ContextMenuBuilder.CurrentGraph);
FBlueprintEditorUtils::GetAllNodesOfClass(CurrentBlueprint, /*out*/ States);
for (auto StateIt = States.CreateIterator(); StateIt; ++StateIt)
{
UAnimStateNode* StateNode = *StateIt;
UK2Node_TransitionRuleGetter* NodeTemplate = ContextMenuBuilder.CreateTemplateNode<UK2Node_TransitionRuleGetter>();
NodeTemplate->AssociatedStateNode = StateNode;
NodeTemplate->GetterType = ETransitionGetter::ArbitraryState_GetBlendWeight;
const FString OwnerName = StateNode->GetOuter()->GetName();
const FString Title = FString::Printf(TEXT("Current %s for state '%s.%s'"), *UK2Node_TransitionRuleGetter::GetFriendlyName(NodeTemplate->GetterType), *OwnerName, *StateNode->GetStateName());
TSharedPtr<FEdGraphSchemaAction_K2NewNode> Action = FK2ActionMenuBuilder::AddNewNodeAction(ContextMenuBuilder, StateCategory, Title, NodeTemplate->GetTooltip(), 0, NodeTemplate->GetKeywords());
Action->NodeTemplate = NodeTemplate;
}
}
}
void UAnimationTransitionSchema::GetSourceStateActions(FGraphContextMenuBuilder& ContextMenuBuilder) const
{
if ((ContextMenuBuilder.FromPin == NULL) || ((ContextMenuBuilder.FromPin->Direction == EGPD_Input) && (ContextMenuBuilder.FromPin->PinType.PinCategory == PC_Float)))
{
// Find the source state associated with this transition
UAnimBlueprint* Blueprint = CastChecked<UAnimBlueprint>(FBlueprintEditorUtils::FindBlueprintForGraph(ContextMenuBuilder.CurrentGraph));
if (UAnimBlueprintGeneratedClass* AnimBlueprintClass = Blueprint->GetAnimBlueprintSkeletonClass())
{
if (UAnimStateTransitionNode* TransNode = GetTransitionNodeFromGraph(AnimBlueprintClass->GetAnimBlueprintDebugData(), ContextMenuBuilder.CurrentGraph))
{
if (UAnimStateNode* SourceStateNode = Cast<UAnimStateNode>(TransNode->GetPreviousState()))
{
// Offer options from the source state
// Sequence player positions
ETransitionGetter::Type SequenceSpecificGetters[] =
{
ETransitionGetter::AnimationAsset_GetCurrentTime,
ETransitionGetter::AnimationAsset_GetLength,
ETransitionGetter::AnimationAsset_GetCurrentTimeFraction,
ETransitionGetter::AnimationAsset_GetTimeFromEnd,
ETransitionGetter::AnimationAsset_GetTimeFromEndFraction
};
TArray<UK2Node*> AssetPlayers;
SourceStateNode->BoundGraph->GetNodesOfClassEx<UAnimGraphNode_Base, UK2Node>(/*out*/ AssetPlayers);
const FString Category_AssetPlayer(TEXT("Asset Player"));
for (int32 TypeIndex = 0; TypeIndex < ARRAY_COUNT(SequenceSpecificGetters); ++TypeIndex)
{
for (auto NodeIt = AssetPlayers.CreateConstIterator(); NodeIt; ++NodeIt)
{
UAnimGraphNode_Base* AnimNode = CastChecked<UAnimGraphNode_Base>(*NodeIt);
if (AnimNode->DoesSupportTimeForTransitionGetter())
{
UK2Node_TransitionRuleGetter* NodeTemplate = ContextMenuBuilder.CreateTemplateNode<UK2Node_TransitionRuleGetter>();
FString AssetName;
UAnimationAsset * AnimAsset = AnimNode->GetAnimationAsset();
if (AnimAsset)
{
NodeTemplate->AssociatedAnimAssetPlayerNode = AnimNode;
AssetName = AnimAsset->GetName();
}
NodeTemplate->GetterType = SequenceSpecificGetters[TypeIndex];
FFormatNamedArguments Args;
Args.Add(TEXT("NodeName"), UK2Node_TransitionRuleGetter::GetFriendlyName(NodeTemplate->GetterType));
Args.Add(TEXT("AssetName"), FText::FromString(AssetName));
FText Title = FText::Format(LOCTEXT("TransitionFor", "{NodeName} for '{AssetName}'"), Args);
TSharedPtr<FEdGraphSchemaAction_K2NewNode> Action = FK2ActionMenuBuilder::AddNewNodeAction(ContextMenuBuilder, Category_AssetPlayer, Title, NodeTemplate->GetTooltipText().ToString(), 0, NodeTemplate->GetKeywords());
Action->NodeTemplate = NodeTemplate;
}
}
}
// Non-sequence specific ones
ETransitionGetter::Type NonSpecificGetters[] =
{
ETransitionGetter::CurrentTransitionDuration,
ETransitionGetter::CurrentState_ElapsedTime,
ETransitionGetter::CurrentState_GetBlendWeight
};
for (int32 TypeIndex = 0; TypeIndex < ARRAY_COUNT(NonSpecificGetters); ++TypeIndex)
{
FString Category_Transition(TEXT("Transition"));
UK2Node_TransitionRuleGetter* NodeTemplate = ContextMenuBuilder.CreateTemplateNode<UK2Node_TransitionRuleGetter>();
NodeTemplate->GetterType = NonSpecificGetters[TypeIndex];
FText Title = UK2Node_TransitionRuleGetter::GetFriendlyName(NodeTemplate->GetterType);
TSharedPtr<FEdGraphSchemaAction_K2NewNode> Action = FK2ActionMenuBuilder::AddNewNodeAction(ContextMenuBuilder, Category_Transition, Title, NodeTemplate->GetTooltipText().ToString(), 0, NodeTemplate->GetKeywords());
Action->NodeTemplate = NodeTemplate;
}
}
}
}
}
}
