UE5/C++ 基于GAS的角色升级 7.3.3 应用升级奖励效果

1.

打开FightComponent，增加升级方法

public:
	void UpdateLevel(AMMOARPGCharacterBase* InUpdateLevelPawn);
	void UpdateLevel(float InLevel, TSubclassOf<UGameplayEffect> InNewReward);

进行实现

void UFightComponent::UpdateLevel(AMMOARPGCharacterBase* InUpdateLevelPawn)
{
	if (InUpdateLevelPawn->IsUpdateLevel())
	{
		//升级
		InUpdateLevelPawn->UpdateLevel(InUpdateLevelPawn->GetCharacterLevel() + 1);

		//递归判定升级，用于连升多级
		UpdateLevel(InUpdateLevelPawn);
	}
}

void UFightComponent::UpdateLevel(float InLevel, TSubclassOf<UGameplayEffect> InNewReward)
{
	if (AbilitySystemComponent.IsValid())
	{
		//检查升级效果GE必须有值
		checkf(InNewReward, TEXT("This value needs to be configured in the blueprint."));

		//应用升级奖励效果
		AbilitySystemComponent->ApplyGameplayEffectToSelf(Cast<UGameplayEffect>(InNewReward->GetDefaultObject()),InLevel, AbilitySystemComponent->MakeEffectContext());
	}
}

2.

在HandleHealth，调用UpdateLevel方法，传入要升级的对象

void UFightComponent::HandleHealth(AMMOARPGCharacterBase* InstigatorPawn, AActor* DamageCauser, const struct FGameplayTagContainer& InTags, float InNewValue)
{
	if (MMOARPGCharacterBase.IsValid())
	{
		if (MMOARPGCharacterBase->IsDie())
		{
			//经验贡献和升级
			InstigatorPawn->RewardEffect(MMOARPGCharacterBase->GetCharacterLevel(),MMOARPGCharacterBase->GetDeathRewardEffect(), [&]()
				{
					//角色升级
					UpdateLevel(InstigatorPawn);

				});

			MMOARPGCharacterBase->PlayDie();
		}

3.

升级方法内会调用CharacterBase内的升级接口，然后会再调用FightComponent内的升级接口，同时传入等级和升级效果

void AMMOARPGCharacterBase::UpdateLevel(float InLevel)
{
	if (FightComponent)
	{
		FightComponent->UpdateLevel(InLevel, UpgradeRewardEffect);
	}
}

然后应用升级效果到自身

void UFightComponent::UpdateLevel(float InLevel, TSubclassOf<UGameplayEffect> InNewReward)
{
	if (AbilitySystemComponent.IsValid())
	{
		//检查升级效果GE必须有值
		checkf(InNewReward, TEXT("This value needs to be configured in the blueprint."));

		//应用升级奖励效果
		AbilitySystemComponent->ApplyGameplayEffectToSelf(Cast<UGameplayEffect>(InNewReward->GetDefaultObject()),InLevel, AbilitySystemComponent->MakeEffectContext());
	}
}