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unitysamples / LyraStarterGame /Source /LyraGame /AbilitySystem /LyraAbilitySet.h
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// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "ActiveGameplayEffectHandle.h"
#include "Engine/DataAsset.h"
#include "AttributeSet.h"
#include "GameplayTagContainer.h"
#include "GameplayAbilitySpecHandle.h"
#include "LyraAbilitySet.generated.h"
class UAttributeSet;
class UGameplayEffect;
class ULyraAbilitySystemComponent;
class ULyraGameplayAbility;
class UObject;
/**
* FLyraAbilitySet_GameplayAbility
*
* Data used by the ability set to grant gameplay abilities.
*/
USTRUCT(BlueprintType)
struct FLyraAbilitySet_GameplayAbility
{
GENERATED_BODY()
public:
// Gameplay ability to grant.
UPROPERTY(EditDefaultsOnly)
TSubclassOf<ULyraGameplayAbility> Ability = nullptr;
// Level of ability to grant.
UPROPERTY(EditDefaultsOnly)
int32 AbilityLevel = 1;
// Tag used to process input for the ability.
UPROPERTY(EditDefaultsOnly, Meta = (Categories = "InputTag"))
FGameplayTag InputTag;
};
/**
* FLyraAbilitySet_GameplayEffect
*
* Data used by the ability set to grant gameplay effects.
*/
USTRUCT(BlueprintType)
struct FLyraAbilitySet_GameplayEffect
{
GENERATED_BODY()
public:
// Gameplay effect to grant.
UPROPERTY(EditDefaultsOnly)
TSubclassOf<UGameplayEffect> GameplayEffect = nullptr;
// Level of gameplay effect to grant.
UPROPERTY(EditDefaultsOnly)
float EffectLevel = 1.0f;
};
/**
* FLyraAbilitySet_AttributeSet
*
* Data used by the ability set to grant attribute sets.
*/
USTRUCT(BlueprintType)
struct FLyraAbilitySet_AttributeSet
{
GENERATED_BODY()
public:
// Gameplay effect to grant.
UPROPERTY(EditDefaultsOnly)
TSubclassOf<UAttributeSet> AttributeSet;
};
/**
* FLyraAbilitySet_GrantedHandles
*
* Data used to store handles to what has been granted by the ability set.
*/
USTRUCT(BlueprintType)
struct FLyraAbilitySet_GrantedHandles
{
GENERATED_BODY()
public:
void AddAbilitySpecHandle(const FGameplayAbilitySpecHandle& Handle);
void AddGameplayEffectHandle(const FActiveGameplayEffectHandle& Handle);
void AddAttributeSet(UAttributeSet* Set);
void TakeFromAbilitySystem(ULyraAbilitySystemComponent* LyraASC);
protected:
// Handles to the granted abilities.
UPROPERTY()
TArray<FGameplayAbilitySpecHandle> AbilitySpecHandles;
// Handles to the granted gameplay effects.
UPROPERTY()
TArray<FActiveGameplayEffectHandle> GameplayEffectHandles;
// Pointers to the granted attribute sets
UPROPERTY()
TArray<TObjectPtr<UAttributeSet>> GrantedAttributeSets;
};
/**
* ULyraAbilitySet
*
* Non-mutable data asset used to grant gameplay abilities and gameplay effects.
*/
UCLASS(BlueprintType, Const)
class ULyraAbilitySet : public UPrimaryDataAsset
{
GENERATED_BODY()
public:
ULyraAbilitySet(const FObjectInitializer& ObjectInitializer = FObjectInitializer::Get());
// Grants the ability set to the specified ability system component.
// The returned handles can be used later to take away anything that was granted.
void GiveToAbilitySystem(ULyraAbilitySystemComponent* LyraASC, FLyraAbilitySet_GrantedHandles* OutGrantedHandles, UObject* SourceObject = nullptr) const;
protected:
// Gameplay abilities to grant when this ability set is granted.
UPROPERTY(EditDefaultsOnly, Category = "Gameplay Abilities", meta=(TitleProperty=Ability))
TArray<FLyraAbilitySet_GameplayAbility> GrantedGameplayAbilities;
// Gameplay effects to grant when this ability set is granted.
UPROPERTY(EditDefaultsOnly, Category = "Gameplay Effects", meta=(TitleProperty=GameplayEffect))
TArray<FLyraAbilitySet_GameplayEffect> GrantedGameplayEffects;
// Attribute sets to grant when this ability set is granted.
UPROPERTY(EditDefaultsOnly, Category = "Attribute Sets", meta=(TitleProperty=AttributeSet))
TArray<FLyraAbilitySet_AttributeSet> GrantedAttributes;
};