BTDecorator_ConeCheck.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "InputCoreTypes.h"
#include "BehaviorTree/BehaviorTreeTypes.h"
#include "BehaviorTree/BTDecorator.h"
#include "BehaviorTree/ValueOrBBKey.h"
#include "BTDecorator_ConeCheck.generated.h"
 
class UBehaviorTree;
class UBlackboardComponent;
 
struct FBTConeCheckDecoratorMemory
{
    bool bLastRawResult;
};
 
UCLASS(MinimalAPI)
class UBTDecorator_ConeCheck : public UBTDecorator
{
    GENERATED_UCLASS_BODY()
 
    typedef FBTConeCheckDecoratorMemory TNodeInstanceMemory;
 
    UPROPERTY(Category=Decorator, EditAnywhere)
    FValueOrBBKey_Float ConeHalfAngle;
    
    UPROPERTY(EditAnywhere, Category=Blackboard)
    FBlackboardKeySelector ConeOrigin;
 
    UPROPERTY(EditAnywhere, Category=Blackboard)
    FBlackboardKeySelector ConeDirection;
 
    UPROPERTY(EditAnywhere, Category=Blackboard)
    FBlackboardKeySelector Observed;
 
    AIMODULE_API virtual void InitializeFromAsset(UBehaviorTree& Asset) override;
    AIMODULE_API virtual uint16 GetInstanceMemorySize() const override;
    AIMODULE_API virtual void InitializeMemory(UBehaviorTreeComponent& OwnerComp, uint8* NodeMemory, EBTMemoryInit::Type InitType) const override;
    AIMODULE_API virtual void CleanupMemory(UBehaviorTreeComponent& OwnerComp, uint8* NodeMemory, EBTMemoryClear::Type CleanupType) const override;
    AIMODULE_API virtual void DescribeRuntimeValues(const UBehaviorTreeComponent& OwnerComp, uint8* NodeMemory, EBTDescriptionVerbosity::Type Verbosity, TArray<FString>& Values) const override;
    AIMODULE_API virtual FString GetStaticDescription() const override;
 
#if WITH_EDITOR
    AIMODULE_API virtual FName GetNodeIconName() const override;
    AIMODULE_API virtual FString GetErrorMessage() const override;
#endif // WITH_EDITOR
 
protected:
    float GetConeHalfAngleDot(const UBehaviorTreeComponent& OwnerComp) const;
    AIMODULE_API virtual bool CalculateRawConditionValue(UBehaviorTreeComponent& OwnerComp, uint8* NodeMemory) const override;
    AIMODULE_API virtual void OnBecomeRelevant(UBehaviorTreeComponent& OwnerComp, uint8* NodeMemory) override;
    AIMODULE_API void OnBlackboardChange(const UBlackboardComponent& Blackboard, FBlackboard::FKey ChangedKeyID);
 
    AIMODULE_API virtual void TickNode(UBehaviorTreeComponent& OwnerComp, uint8* NodeMemory, float DeltaSeconds) override;
    
    AIMODULE_API bool CalculateDirection(const UBlackboardComponent* BlackboardComp, const FBlackboardKeySelector& Origin, const FBlackboardKeySelector& End, FVector& Direction) const;
 
private:
    bool CalcConditionImpl(UBehaviorTreeComponent& OwnerComp, uint8* NodeMemory) const;
};