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- StateTree asset allowed by a StateTreeReference can be filtered by using "meta=(schema="SomeSchema")" on the UPROPERTY of type StateTreeReference. #rnx #rb mikko.mononen #preflight 627a6fd7e713fc6e2c4cddae [CL 20122645 by Yoan StAmant in ue5-main branch]
61 lines
1.5 KiB
C++
61 lines
1.5 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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// 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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