48 lines
1.8 KiB
C++
48 lines
1.8 KiB
C++
// Copyright 2025 https://yuewu.dev/en All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "AbilitySystemComponent.h"
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#include "Abilities/Async/AbilityAsync.h"
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#include "GGA_AsyncTask_AttributeChanged.generated.h"
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DECLARE_DYNAMIC_MULTICAST_DELEGATE_ThreeParams(FOnAttributeChanged, FGameplayAttribute, Attribute, float, NewValue, float, OldValue);
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/**
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* 蓝图节点，用于监听AbilitySystemComponent上的属性变化。
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* 一般用于UI。
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*/
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UCLASS()
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class GENERICGAMEPLAYABILITIES_API UGGA_AsyncTask_AttributeChanged : public UAbilityAsync
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{
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GENERATED_BODY()
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public:
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UPROPERTY(BlueprintAssignable)
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FOnAttributeChanged OnAttributeChanged;
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// Listens for an attribute changing.
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UFUNCTION(BlueprintCallable, Category = "GGA|Tasks", meta = (BlueprintInternalUseOnly = "true"))
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static UGGA_AsyncTask_AttributeChanged* ListenForAttributeChange(UAbilitySystemComponent* AbilitySystemComponent, FGameplayAttribute Attribute);
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// Listens for an attribute changing.
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// Version that takes in an array of Attributes. Check the Attribute output for which Attribute changed.
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UFUNCTION(BlueprintCallable, Category = "GGA|Tasks", meta = (BlueprintInternalUseOnly = "true"))
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static UGGA_AsyncTask_AttributeChanged* ListenForAttributesChange(UAbilitySystemComponent* AbilitySystemComponent, TArray<FGameplayAttribute> Attributes);
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// You must call this function manually when you want the AsyncTask to end.
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// For UMG Widgets, you would call it in the Widget's Destruct event.
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UFUNCTION(BlueprintCallable, Category = "GGA|Tasks", meta=(DeprecatedFunction, DeprecationMessage="Use EndAction"))
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void EndTask();
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protected:
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virtual void Activate() override;
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virtual void EndAction() override;
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FGameplayAttribute AttributeToListenFor;
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TArray<FGameplayAttribute> AttributesToListenFor;
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void AttributeChanged(const FOnAttributeChangeData& Data);
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};
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