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e2fd3455a9
- Added ability for tasks to request transitions - Added buffered transition requests - Added callback method to FStateTreeTaskBase which is called during transition triggering - Allow FStateTreeStateLink to be added to tasks and conditions (resolved automatically during compile) #jira UE-174250 #preflight 63ca7ee8977c62635603afcb [CL 23815873 by mikko mononen in ue5-main branch]
81 lines
2.6 KiB
C++
81 lines
2.6 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "Blueprint/StateTreeNodeBlueprintBase.h"
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#include "AIController.h"
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#include "StateTreeExecutionContext.h"
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#include "VisualLogger/VisualLogger.h"
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#include UE_INLINE_GENERATED_CPP_BY_NAME(StateTreeNodeBlueprintBase)
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UWorld* UStateTreeNodeBlueprintBase::GetWorld() const
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{
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// The items are duplicated as the State Tree execution context as outer, so this should be essentially the same as GetWorld() on StateTree context.
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// The CDO is used by the BP editor to check for certain functionality, make it return nullptr so that the GetWorld() passes as overridden.
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if (!HasAnyFlags(RF_ClassDefaultObject))
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{
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if (CachedOwner != nullptr)
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{
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return CachedOwner->GetWorld();
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}
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if (UObject* Outer = GetOuter())
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{
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return Outer->GetWorld();
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}
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}
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return nullptr;
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}
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AActor* UStateTreeNodeBlueprintBase::GetOwnerActor(const FStateTreeExecutionContext& Context) const
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{
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if (const AAIController* Controller = Cast<AAIController>(Context.GetOwner()))
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{
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return Controller->GetPawn();
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}
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return Cast<AActor>(Context.GetOwner());
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}
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void UStateTreeNodeBlueprintBase::SetCachedInstanceDataFromContext(const FStateTreeExecutionContext& Context) const
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{
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if (FStateTreeInstanceData* InstanceData = Context.GetMutableInstanceData())
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{
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InstanceStorage = &InstanceData->GetMutableStorage();
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}
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CachedState = Context.GetCurrentlyProcessedState();
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CachedOwner = Context.GetOwner();
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}
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void UStateTreeNodeBlueprintBase::ClearCachedInstanceData() const
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{
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InstanceStorage = nullptr;
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CachedState = FStateTreeStateHandle::Invalid;
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CachedOwner = nullptr;
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}
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void UStateTreeNodeBlueprintBase::SendEvent(const FStateTreeEvent& Event)
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{
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if (InstanceStorage == nullptr || CachedOwner == nullptr)
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{
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UE_VLOG_UELOG(this, LogStateTree, Error, TEXT("Trying to call SendEvent() while node is not active. Use SendEvent() on UStateTreeComponent instead for sending signals externally."));
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return;
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}
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InstanceStorage->GetMutableEventQueue().SendEvent(CachedOwner, Event.Tag, Event.Payload, Event.Origin);
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}
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void UStateTreeNodeBlueprintBase::RequestTransition(const FStateTreeStateLink& TargetState, const EStateTreeTransitionPriority Priority)
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{
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if (InstanceStorage == nullptr || CachedOwner == nullptr)
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{
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UE_VLOG_UELOG(this, LogStateTree, Error, TEXT("Trying to call SendEvent() while node is not active. Use SendEvent() on UStateTreeComponent instead for sending signals externally."));
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return;
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}
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FStateTreeTransitionRequest Request;
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Request.SourceState = CachedState;
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Request.TargetState = TargetState.StateHandle;
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Request.Priority = Priority;
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InstanceStorage->AddTransitionRequest(CachedOwner, Request);
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}
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