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StateTree: Blueprint Property Ref.

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- State Tree property ref which can be used in BP tasks

[CL 31470182 by mikko mononen in ue5-main branch]
This commit is contained in:
mikko mononen
2024-02-14 09:04:52 -05:00
parent 08e95db7d2
commit e329242707
20 changed files with 1250 additions and 147 deletions
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Engine/Plugins/Runtime/StateTree/Source/StateTreeModule/Public/Blueprint/StateTreeNodeBlueprintBase.h
+24 -3
View File
@@ -3,6 +3,7 @@
#pragma once
#include "StateTreeExecutionTypes.h"
#include "UObject/ObjectMacros.h"
#include "StateTreeNodeBlueprintBase.generated.h"
struct FStateTreeEvent;
@@ -10,6 +11,8 @@ struct FStateTreeEventQueue;
struct FStateTreeInstanceStorage;
struct FStateTreeLinker;
struct FStateTreeExecutionContext;
struct FStateTreeBlueprintPropertyRef;
class UStateTree;
UENUM()
enum class EStateTreeBlueprintPropertyCategory : uint8
@@ -44,6 +47,14 @@ public:
UFUNCTION(BlueprintCallable, Category = "StateTree", meta = (HideSelfPin = "true", DisplayName = "StateTree Request Transition"))
void RequestTransition(const FStateTreeStateLink& TargetState, const EStateTreeTransitionPriority Priority = EStateTreeTransitionPriority::Normal);
/** Returns a reference to selected property in State Tree. */
UFUNCTION(CustomThunk)
void GetPropertyReference(const FStateTreeBlueprintPropertyRef& PropertyRef) const;
/** Returns true if reference to selected property in State Tree is accessible. */
UFUNCTION()
bool IsPropertyRefValid(const FStateTreeBlueprintPropertyRef& PropertyRef) const;
protected:
virtual UWorld* GetWorld() const override;
AActor* GetOwnerActor(const FStateTreeExecutionContext& Context) const;
@@ -58,16 +69,26 @@ protected:
void ClearCachedEventQueue() const { ClearCachedInstanceData(); }
private:
DECLARE_FUNCTION(execGetPropertyReference);
/** Cached State where the node is processed on. */
mutable FStateTreeStateHandle CachedState;
void* GetMutablePtrToProperty(const FStateTreeBlueprintPropertyRef& PropertyRef, FProperty*& OutSourceProperty) const;
/** Cached instance data while the node is active. */
mutable FStateTreeInstanceStorage* InstanceStorage = nullptr;
mutable TWeakPtr<FStateTreeInstanceStorage> WeakInstanceStorage;
/** Cached owner while the node is active. */
UPROPERTY()
mutable TObjectPtr<UObject> CachedOwner = nullptr;
/** Cached State Tree of owning execution frame. */
UPROPERTY()
mutable TObjectPtr<const UStateTree> CachedFrameStateTree = nullptr;
/** Cached root state of owning execution frame. */
mutable FStateTreeStateHandle CachedFrameRootState;
/** Cached State where the node is processed on. */
mutable FStateTreeStateHandle CachedState;
};
#if UE_ENABLE_INCLUDE_ORDER_DEPRECATED_IN_5_2