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#preflight 62da4a10185da2495f802bae #ROBOMERGE-AUTHOR: mikko.mononen #ROBOMERGE-SOURCE: CL 21217415 via CL 21217580 via CL 21217683 #ROBOMERGE-BOT: UE5 (Release-Engine-Staging -> Main) (v972-20964824) [CL 21218420 by mikko mononen in ue5-main branch]
68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "StateTreeReference.h"
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#include "StateTree.h"
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#if WITH_EDITOR
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#include "Editor.h"
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#endif
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FStateTreeReference::FStateTreeReference()
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{
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#if WITH_EDITOR
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// Make sure any modifications to the parameters since the last sync (PostSerialize) won't cause runtime issues.
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PIEHandle = FEditorDelegates::PreBeginPIE.AddLambda([this](const bool bBegan)
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{
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if (RequiresParametersSync())
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{
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SyncParameters();
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UE_LOG(LogStateTree, Warning, TEXT("Parameters for '%s' stored in StateTreeReference were auto-fixed to be usable at runtime."), *GetNameSafe(StateTree));
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}
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});
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#endif
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}
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FStateTreeReference::~FStateTreeReference()
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{
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#if WITH_EDITOR
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// Unregister all our delegates
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FEditorDelegates::PreBeginPIE.Remove(PIEHandle);
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#endif
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}
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#if WITH_EDITOR
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void FStateTreeReference::PostSerialize(const FArchive& Ar)
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{
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if (Ar.IsLoading() && Ar.IsPersistent())
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{
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// Make sure the StateTree asset is fully loaded, so that the SyncParameters() will execute on valid data.
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if (StateTree != nullptr)
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{
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FArchive* NonConstAr = const_cast<FArchive*>(&Ar);
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NonConstAr->Preload(StateTree);
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}
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// This might modify the object but we don't want to dirty on load
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SyncParameters();
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}
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}
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void FStateTreeReference::SyncParameters(FInstancedPropertyBag& ParametersToSync) const
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{
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if (StateTree == nullptr)
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{
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ParametersToSync.Reset();
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}
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else
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{
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ParametersToSync.MigrateToNewBagInstance(StateTree->GetDefaultParameters());
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}
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}
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bool FStateTreeReference::RequiresParametersSync() const
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{
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return (StateTree == nullptr && Parameters.IsValid())
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|| (StateTree != nullptr && StateTree->GetDefaultParameters().GetPropertyBagStruct() != Parameters.GetPropertyBagStruct());
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}
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#endif // WITH_EDITOR
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