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class VSMEDITOR_API FVSM_EditorUtilities
{
public:
template<typename T>
static T* CreateNode(UEdGraph* Graph, int32 NodePosX, int32 NodePosY, bool bSelectNewNode = true)
{
FGraphNodeCreator<T> NodeCreator(*Graph);
T* GraphNode = NodeCreator.CreateNode();
GraphNode->NodePosX = NodePosX;
GraphNode->NodePosY = NodePosY;
NodeCreator.Finalize();
return GraphNode;
};
};
class VSMEDITOR_API FVSM_StateMachineUtilities : public FVSM_EditorUtilities
{
protected:
static const FString PREFIX_NAME;
static const FString BEGIN_NAME;
static const FString UPDATE_NAME;
static const FString FINISH_NAME;
static const FString SUFFIX_BEGIN_NAME;
static const FString SUFFIX_UPDATE_NAME;
static const FString SUFFIX_FINISH_NAME;
public:
template<typename NodeType, typename StateType>
static NodeType* AddNewDefaultState(int32 NodePosX, int32 NodePosY, UVSM_Graph* Graph, UEdGraphPin* FromPin = nullptr, bool bSelectNewNode = true)
{
NodeType* NewNode = CreateNode<NodeType>(Graph, NodePosX, NodePosY, bSelectNewNode);
StateType* State = NewObject<StateType>(Graph->PrepareOuter());
Graph->RegisterNode(State, NewNode, FromPin);
return NewNode;
};
static UVSM_Node_Entry* AddNewEntry(int32 NodePosX, int32 NodePosY, UVSM_Graph* Graph, bool bSelectNewNode = true)
{
UVSM_Node_Entry* NewNode = CreateNode<UVSM_Node_Entry>(Graph, NodePosX, NodePosY, bSelectNewNode);
UVSM_State_Entry* Entry = NewObject<UVSM_State_Entry>(Graph->PrepareOuter());
Entry->Data.Name = TEXT("Entry");
Graph->RegisterEntryNode(Entry, NewNode);
return NewNode;
};
static UVSM_Node_Task* AddNewTask(int32 NodePosX, int32 NodePosY, UVSM_Graph* Graph, FVSM_NodeClassData InClassData, UEdGraphPin* FromPin = nullptr, bool bSelectNewNode = true)
{
UVSM_Node_Task* NewNode = CreateNode<UVSM_Node_Task>(Graph, NodePosX, NodePosY, bSelectNewNode);
UVSM_State_Task* Task = NewObject<UVSM_State_Task>(Graph->PrepareOuter());
Task->TaskBP = InClassData.GetBlueprint();
Task->Data.TaskClass = InClassData.GetClass();
Task->Data.Name = "Task_" + FString::FromInt(Task->GetUniqueID());
UVSM_Blueprint* Blueprint = Graph->SMBP;
Blueprint->GetSM()->AddOrUpdateState(Task->Data);
Graph->RegisterTaskNode(Task, NewNode, FromPin);
return NewNode;
};
template<typename NodeType, typename TransitionType>
static NodeType* AddNewTransition(int32 NodePosX, int32 NodePosY, UVSM_Graph* Graph, bool bSelectNewNode = true)
{
NodeType* NewNode = CreateNode<NodeType>(Graph, NodePosX, NodePosY, bSelectNewNode);
TransitionType* Transition = NewObject<TransitionType>(Graph->PrepareOuter());
Graph->RegisterTransitionNode(Transition, NewNode);
return NewNode;
};
static void AddDefaultStateGraph(UVSM_Graph* Graph, UVSM_Node* StateNode)
{
if (StateNode->IsRootNode()) return;
UVSM_Blueprint* Blueprint = Graph->SMBP;
UVSM_State_Base* SmState = StateNode->State;
FVSM_StateData& State = SmState->Data;
State.Name = "State_" + FString::FromInt(SmState->GetUniqueID());
SmState->StateGraph = FBlueprintEditorUtils::CreateNewGraph(Blueprint, *State.Name, UEdGraph::StaticClass(), UEdGraphSchema_K2::StaticClass());
SmState->StateGraph->bAllowDeletion = false;
SmState->StateGraph->bAllowRenaming = false;
FBlueprintEditorUtils::AddUbergraphPage(Blueprint, SmState->StateGraph);
State.BeginFunctionName = PREFIX_NAME + State.Name + SUFFIX_BEGIN_NAME;
State.UpdateFunctionName = PREFIX_NAME + State.Name + SUFFIX_UPDATE_NAME;
State.FinishFunctionName = PREFIX_NAME + State.Name + SUFFIX_FINISH_NAME;
UFunction* BeginFunction = FindUField<UFunction>(Blueprint->GetSM()->GetClass(), "BeginState_Internal");
UK2Node_CustomEvent* BeginEvent = UK2Node_CustomEvent::CreateFromFunction(FVector2D(0, 0), SmState->StateGraph, State.BeginFunctionName, BeginFunction, false);
BeginEvent->bCanRenameNode = false;
UFunction* UpdateFunction = FindUField<UFunction>(Blueprint->GetSM()->GetClass(), "UpdateState_Internal");
UK2Node_CustomEvent* UpdateEvent = UK2Node_CustomEvent::CreateFromFunction(FVector2D(0, 100.f), SmState->StateGraph, State.UpdateFunctionName, UpdateFunction, false);
TSharedPtr<FUserPinInfo> PinDefinition = MakeShareable(new FUserPinInfo);
FEdGraphPinType PinType;
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
PinType.bIsReference = false;
PinType.PinCategory = K2Schema->PC_Float;
PinDefinition->PinName = "DeltaTime";
PinDefinition->PinType = PinType;
UEdGraphPin* NewPin = UpdateEvent->CreatePinFromUserDefinition(PinDefinition);
UpdateEvent->ReconstructNode();
UpdateEvent->bCanRenameNode = false;
UFunction* FinishFunction = FindUField<UFunction>(Blueprint->GetSM()->GetClass(), "FinishState_Internal");
UK2Node_CustomEvent* FinishEvent = UK2Node_CustomEvent::CreateFromFunction(FVector2D(0, 250.f), SmState->StateGraph, State.FinishFunctionName, FinishFunction, false);
FinishEvent->bCanRenameNode = false;
Blueprint->GetSM()->AddOrUpdateState(State);
};
static void AddNewTransitionGraph(UVSM_Graph* Graph, UVSM_Node_Transition* TransNode)
{
UVSM_Blueprint* Blueprint = Graph->SMBP;
if ((!TransNode->GetInputPin() || TransNode->GetInputPin()->LinkedTo.Num() == 0)
|| (!TransNode->GetOutputPin() && TransNode->GetOutputPin()->LinkedTo.Num() == 0))
return;
UVSM_Node* InputState = CastChecked<UVSM_Node>(TransNode->GetInputPin()->LinkedTo[0]->GetOwningNode());
UVSM_Node* OutputState = CastChecked<UVSM_Node>(TransNode->GetOutputPin()->LinkedTo[0]->GetOwningNode());
UVSM_State_Transition* Transition = TransNode->Transition;
FVSM_TransitionData& RuntimeData = Transition->Data;
if (InputState && OutputState)
{
RuntimeData.Name = InputState->State->Data.Name + "_To_" + OutputState->State->Data.Name;
RuntimeData.FromState = InputState->State->Data.Name;
RuntimeData.ToState = OutputState->State->Data.Name;
InputState->State->Data.TransitionNames.Add(RuntimeData.Name);
Transition->TransitionGraph = FBlueprintEditorUtils::CreateNewGraph(Blueprint, *RuntimeData.Name, UEdGraph::StaticClass(), UEdGraphSchema_K2::StaticClass());
Transition->TransitionGraph->bAllowDeletion = false;
Transition->TransitionGraph->bAllowRenaming = false;
FBlueprintEditorUtils::AddFunctionGraph<UClass>(Blueprint, Transition->TransitionGraph, true, nullptr);
UK2Node_FunctionEntry* EntryNode = nullptr;
if (Transition->TransitionGraph)
{
TArray<UK2Node_FunctionEntry*> EntryNodes;
Transition->TransitionGraph->GetNodesOfClass(EntryNodes);
if ((EntryNodes.Num() > 0) && EntryNodes[0]->IsEditable())
EntryNode = EntryNodes[0];
if (EntryNode)
{
EntryNode->AddExtraFlags(FUNC_BlueprintPure);
UK2Node_FunctionResult* ResultNode = FBlueprintEditorUtils::FindOrCreateFunctionResultNode(EntryNode);
if (ResultNode)
{
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
FEdGraphPinType PinType;
PinType.bIsReference = false;
PinType.PinCategory = K2Schema->PC_Boolean;
FName NewPinName = ResultNode->CreateUniquePinName(TEXT("Result"));
UEdGraphPin* NewPin = ResultNode->CreateUserDefinedPin(NewPinName, PinType, EGPD_Input, false);
ResultNode->ReconstructNode();
}
}
}
Blueprint->GetSM()->AddOrUpdateTransition(RuntimeData);
}
};
static void RenameStateGraph(UVSM_State_Base* State, FString OldName, FString NewName)
{
if (State)
{
FVSM_StateData& RuntimeState = State->Data;
RuntimeState.Name = NewName;
if (State->StateGraph)
{
FBlueprintEditorUtils::RenameGraph(State->StateGraph, RuntimeState.Name);
for (UEdGraphNode* Node : State->StateGraph->Nodes)
{
FString NodeName = Node->GetNodeTitle(ENodeTitleType::MenuTitle).ToString();
if (NodeName == PREFIX_NAME + OldName + SUFFIX_BEGIN_NAME)
Node->OnRenameNode(PREFIX_NAME + NewName + SUFFIX_BEGIN_NAME);
else if (NodeName == PREFIX_NAME + OldName + SUFFIX_UPDATE_NAME)
Node->OnRenameNode(PREFIX_NAME + NewName + SUFFIX_UPDATE_NAME);
else if (NodeName == PREFIX_NAME + OldName + SUFFIX_FINISH_NAME)
Node->OnRenameNode(PREFIX_NAME + NewName + SUFFIX_FINISH_NAME);
}
RuntimeState.BeginFunctionName = PREFIX_NAME + RuntimeState.Name + SUFFIX_BEGIN_NAME;
RuntimeState.UpdateFunctionName = PREFIX_NAME + RuntimeState.Name + SUFFIX_UPDATE_NAME;
RuntimeState.FinishFunctionName = PREFIX_NAME + RuntimeState.Name + SUFFIX_FINISH_NAME;
}
State->SMBP->GetSM()->AddOrUpdateState(RuntimeState, OldName);
}
};
static void RenameStateGraph(UVSM_State_Transition* Transition)
{
if (Transition && Transition->TransitionGraph)
{
UVSM_Node_Transition* TransNode = CastChecked<UVSM_Node_Transition>(Transition->GraphNode);
FVSM_TransitionData& RuntimeData = Transition->Data;
if ((!TransNode->GetInputPin() || TransNode->GetInputPin()->LinkedTo.Num() == 0)
|| (!TransNode->GetOutputPin() && TransNode->GetOutputPin()->LinkedTo.Num() == 0))
return;
UVSM_Node* InputState = CastChecked<UVSM_Node>(TransNode->GetInputPin()->LinkedTo[0]->GetOwningNode());
UVSM_Node* OutputState = CastChecked<UVSM_Node>(TransNode->GetOutputPin()->LinkedTo[0]->GetOwningNode());
FString OldName = Transition->TransitionGraph->GetName();
RuntimeData.Name = InputState->State->Data.Name + "_To_" + OutputState->State->Data.Name;
RuntimeData.FromState = InputState->State->Data.Name;
RuntimeData.ToState = OutputState->State->Data.Name;
FBlueprintEditorUtils::RenameGraph(Transition->TransitionGraph, RuntimeData.Name);
Transition->SMBP->GetSM()->AddOrUpdateTransition(RuntimeData, OldName);
}
};
};
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