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Per-node constant data is now held on a generated struct as part of sparse class data. Per-node mutable data (i.e. pin links/property access mappings) is now held on a generated 'mutable data' struct that is compiled as part of the generated class. The anim BP compiler is now extended more conventionally using UAnimBlueprintExtension, derived from UBlueprintExtension. This directly replaces the older 'compiler handler' pattern that was added in an emergency fashion for 4.26. Anim graph nodes now request their required extensions and these are held on the UAnimBlueprint in the UBlueprint::Extensions array. The Extensions array is potentially refreshed with any node addition or removal. The Extensions array is force-refreshed each time an anim BP is compiled for the first time to deal with newly added or removed requirements. Const-corrected a bunch of UAnimInstance/FAnimInstanceProxy APIs that rely on (now truly) const data. Added a split state/constant version of FInputScaleBiasClamp to allow some of its data to be split into constants. Tweaked alignment/ordering of FPoseLinkBase to save a few bytes per pose link. Deprecated FAnimNode_Base::OverrideAsset in favor of a more UAnimGraphNode_Base-based approach. Individual nodes can still have runtime overrides via specific accessors. The new approach will also give us the oppurtunity to override multiple assets per node if required in the future. Moved property access into Engine module & removed event support from it - this was never used. Reworked property access compilation API a little - construction/lifetime was a bit confusing previously. Optimized path used to create UK2Node_StructMemberSet nodes in per-node custom events. When using mutable data, the structure used is large and very sparsely connected (i.e. only a few properties are written) so we only create pins that are actually going to be used, rather than creating all of them and conly connecting a few. Patched the following nodes to use the new data approach: - Asset players (sequences, blendspaces, aim offsets) - Blend lists - Ref poses - Roots #rb Jurre.deBaare, Martin.Wilson, Keith.Yerex [CL 16090510 by Thomas Sarkanen in ue5-main branch]
80 lines
3.9 KiB
C++
80 lines
3.9 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "UObject/ObjectMacros.h"
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#include "Misc/Guid.h"
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#include "AnimGraphNode_CustomProperty.h"
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#include "IClassVariableCreator.h"
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#include "AnimGraphNode_LinkedAnimGraphBase.generated.h"
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class FCompilerResultsLog;
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class IDetailLayoutBuilder;
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class IPropertyHandle;
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class SToolTip;
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struct FAnimNode_LinkedAnimGraph;
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UCLASS(MinimalAPI, Abstract)
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class UAnimGraphNode_LinkedAnimGraphBase : public UAnimGraphNode_CustomProperty
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{
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GENERATED_BODY()
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public:
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//~ Begin UEdGraphNode Interface.
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virtual FLinearColor GetNodeTitleColor() const override;
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virtual FText GetTooltipText() const override;
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virtual FText GetNodeTitle(ENodeTitleType::Type TitleType) const override;
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virtual void ValidateAnimNodeDuringCompilation(USkeleton* ForSkeleton, FCompilerResultsLog& MessageLog) override;
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virtual void ReallocatePinsDuringReconstruction(TArray<UEdGraphPin*>& OldPins) override;
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virtual void PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent) override;
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virtual void CustomizeDetails(IDetailLayoutBuilder& DetailBuilder) override;
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//~ End UEdGraphNode Interface.
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// UAnimGraphNode_Base interface
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virtual FPoseLinkMappingRecord GetLinkIDLocation(const UScriptStruct* NodeType, UEdGraphPin* SourcePin) override;
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virtual void GetOutputLinkAttributes(FNodeAttributeArray& OutAttributes) const override;
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virtual bool ShouldShowAttributesOnPins() const override { return false; }
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virtual void OnCopyTermDefaultsToDefaultObject(IAnimBlueprintCopyTermDefaultsContext& InCompilationContext, IAnimBlueprintNodeCopyTermDefaultsContext& InPerNodeContext, IAnimBlueprintGeneratedClassCompiledData& OutCompiledData) override;
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virtual void GetRequiredExtensions(TArray<TSubclassOf<UAnimBlueprintExtension>>& OutExtensions) const override;
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// UAnimGraphNode_CustomProperty interface
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virtual bool IsStructuralProperty(FProperty* InProperty) const override;
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// Node accessor
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virtual FAnimNode_LinkedAnimGraph* GetLinkedAnimGraphNode() PURE_VIRTUAL(UAnimGraphNode_LinkedAnimGraphBase::GetLinkedAnimGraphNode, return nullptr;);
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virtual const FAnimNode_LinkedAnimGraph* GetLinkedAnimGraphNode() const PURE_VIRTUAL(UAnimGraphNode_LinkedAnimGraphBase::GetLinkedAnimGraphNode, return nullptr;);
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protected:
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friend class UAnimBlueprintExtension_LinkedAnimGraph;
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// Called pre-compilation to allocate pose links
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void AllocatePoseLinks();
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// Finds out whether there is a loop in the graph formed by linked instances from this node
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bool HasInstanceLoop();
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/** Generates widgets for exposing/hiding Pins for this node using the provided detail builder */
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void GenerateExposedPinsDetails(IDetailLayoutBuilder &DetailBuilder);
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// Finds out whether there is a loop in the graph formed by linked instances from CurrNode, used by HasInstanceLoop. VisitedNodes and NodeStack are required
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// to track the graph links
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// VisitedNodes - Node we have searched the links of, so we don't do it twice
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// NodeStack - The currently considered chain of nodes. If a loop is detected this will contain the chain that causes the loop
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static bool HasInstanceLoop_Recursive(UAnimGraphNode_LinkedAnimGraphBase* CurrNode, TArray<FGuid>& VisitedNodes, TArray<FGuid>& NodeStack);
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// ----- UI CALLBACKS ----- //
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// Gets path to the currently selected instance class' blueprint
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virtual FString GetCurrentInstanceBlueprintPath() const;
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// Filter callback for blueprints (only accept matching skeletons/interfaces)
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virtual bool OnShouldFilterInstanceBlueprint(const FAssetData& AssetData) const;
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// Instance blueprint was changed by user
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void OnSetInstanceBlueprint(const FAssetData& AssetData, IDetailLayoutBuilder* InDetailBuilder);
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// ----- END UI CALLBACKS ----- //
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};
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UE_DEPRECATED(4.24, "UAnimGraphNode_SubInstanceBase has been renamed to UAnimGraphNode_LinkedAnimGraphBase")
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typedef UAnimGraphNode_LinkedAnimGraphBase UAnimGraphNode_SubInstanceBase;
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