【UE4C++-ActionRougelike-26】动画蓝图

【UE4C++-ActionRougelike-26】动画蓝图

一、眩晕状态

1、动画状态机

在Gideon_AnimBlueprint中的Locomotion状态机中添加以下眩晕相关状态。设置变量bIsStunned来控制眩晕状态执行流程。

2、创建动画实例类

以AnimInstance为父类创建动画实例类MyAnimInstance

//MyAnimInstance.h
UCLASS()
class ACTIONROGUELIKE_API UMyAnimInstance : public UAnimInstance
{
	GENERATED_BODY()
protected:

	// 表示角色是否处于被击晕状态
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Animation")
	bool bIsStunned;
	// 动作组件
	UPROPERTY(BlueprintReadOnly, Category = "Animation")
	UMyActionComponent* ActionComp;
	// 重写UAnimInstance的NativeInitializeAnimation方法
	void NativeInitializeAnimation() override;
	// 重写UAnimInstance的NativeUpdateAnimation方法
	void NativeUpdateAnimation(float DeltaSeconds) override;
};
//MyAnimInstance.cpp
void UMyAnimInstance::NativeInitializeAnimation()
{
	Super::NativeInitializeAnimation();
	// 获取当前动画实例的所有者Actor
	AActor* OwningActor = GetOwningActor();
	if (OwningActor)
	{
		// 如果所有者Actor存在，通过类类型UMyActionComponent::StaticClass()获取Actor中的组件，
		// 并尝试将其转化为UMyActionComponent类型，然后赋值给ActionComp
		ActionComp = Cast<UMyActionComponent>(OwningActor->GetComponentByClass(UMyActionComponent::StaticClass()));
	}
}
void UMyAnimInstance::NativeUpdateAnimation(float DeltaSeconds)
{
	Super::NativeUpdateAnimation(DeltaSeconds);
	// 请求一个名为"Status.Stunned"的游戏标签
	static FGameplayTag StunnedTag = FGameplayTag::RequestGameplayTag("Status.Stunned");
	if (ActionComp)
	{
		// 如果ActionComp存在，就检查其ActiveGameplayTags是否包含StunnedTag标签，并将结果赋值给bIsStunned
		bIsStunned = ActionComp->ActiveGameplayTags.HasTag(StunnedTag);
	}
}

修改Gideon_AnimBlueprint类设置的父类为MyAnimInstance，并设置蓝图中bIsStunned为MyAnimInstance中的属性。

二、漂浮加速动画

1、新建动画混合空间

以Gideon_Skeleton为骨架新建混合空间Sprinting_BS_1D，混合空间设置如下：

2、应用混合空间

2.1 创建加速动画蓝图节点

2.2 应用加速动画蓝图节点

2.3 更新是否加速变量

3、效果演示

三、交互信息

1、添加获取交互信息文本方法

// SInteractionInterface.h
class ACTIONROGUELIKE_API ISInteractionInterface
{
public:
	// 获取交互信息文本
	UFUNCTION(BlueprintCallable, BlueprintNativeEvent)
	FText GetInteractText(APawn* InstigatorPawn);
}
// MyPickup.h
class ACTIONROGUELIKE_API AMyPickup : public AActor, public ISInteractionInterface
{
protected:
	// 实现获取交互信息文本方法
	FText GetInteractText_Implementation(APawn* InstigatorPawn);
};
// MyPickup.cpp
FText AMyPickup::GetInteractText_Implementation(APawn* InstigatorPawn)
{
	return FText::GetEmpty();
}

2、实现接口方法

// MyPickup_Health.h
class ACTIONROGUELIKE_API AMyPickup_Health : public AMyPickup
{
public:
	// 实现获取交互信息文本方法
	FText GetInteractText_Implementation(APawn* InstigatorPawn) override;
}
// MyPickup_Health.cpp
// 定义一个本地化文本的命名空间为"InteractableActors"
#define LOCTEXT_NAMESPACE "InteractableActors"
FText AMyPickup_Health::GetInteractText_Implementation(APawn* InstigatorPawn)
{
	// 如果健康值已满
	UMyAttributeComponent* AttributeComp = UMyAttributeComponent::GetAttributes(InstigatorPawn);
	if (AttributeComp && AttributeComp->IsFullHealth())
	{
		// 返回一段本地化文本，文本的key为"HealthPotion_FullHealthWarning"，默认值为"Already at full health."
		return LOCTEXT("HealthPotion_FullHealthWarning", "Already at full health.");
	}
	// 返回一段格式化的本地化文本，文本的key为"HealthPotion_InteractMessage"，
	// 默认值为"Cost {0} Credits. Restores health to maximum."，并用CreditCost替换掉文本中的{0}
	return FText::Format(LOCTEXT("HealthPotion_InteractMessage", "Cost {0} Credits. Restores health to maximum."), CreditCost);
}
// 取消之前定义的本地化文本的命名空间
#undef LOCTEXT_NAMESPACE

3、UI控件中更新文本

4、效果演示