当前位置：首页 > news >正文

P56-P60 统一委托,关联游戏UI,UI动画,延迟血条

news 来源：原创 2025/8/22 7:45:51

这一部分首先把复杂的每个属性委托全部换成了简洁可复用的委托,之后重新修改了UI蓝图,然后在新增了一个与之前表格关联的动画与血条延迟下降的蓝图

OverlayAuraWidgetController.h

// Fill out your copyright notice in the Description page of Project Settings. #pragma once #include "CoreMinimal.h" #include "IPropertyTable.h" #include "UI/WidgetController/AuraWidgetController.h" #include "OverlayAuraWidgetController.generated.h" USTRUCT(BlueprintType) struct FUIWidgetRow : public FTableRowBase { GENERATED_BODY() UPROPERTY(EditAnywhere,BlueprintReadOnly) FGameplayTag MessageTag = FGameplayTag(); UPROPERTY(EditAnywhere,BlueprintReadOnly) FText Message = FText(); UPROPERTY(EditAnywhere,BlueprintReadOnly) TSubclassOf<class UAuraUserWidget> MessageWidget; UPROPERTY(EditAnywhere,BlueprintReadOnly) UTexture2D* Image = nullptr; }; class UAuraUserWidget; DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FOnAttributeChangedSignature, float, NewValue); DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FMessageWidgetRowSingnature, FUIWidgetRow, Row); /** * */ UCLASS(BlueprintType,Blueprintable) class MYGAS_API UOverlayAuraWidgetController : public UAuraWidgetController { GENERATED_BODY() public: virtual void BroadcastInitialValues() override; virtual void BindCallbacksToDependencies() override; UPROPERTY(BlueprintAssignable,Category="GAS|Attributes") FOnAttributeChangedSignature OnHealthChangedSignature; UPROPERTY(BlueprintAssignable,Category="GAS|Attributes") FOnAttributeChangedSignature OnMaxHealthChangedSignature; UPROPERTY(BlueprintAssignable,Category="GAS|Attributes") FOnAttributeChangedSignature OnManaChangedSignature; UPROPERTY(BlueprintAssignable,Category="GAS|Attributes") FOnAttributeChangedSignature OnMaxManaChangedSignature; UPROPERTY(BlueprintAssignable,Category="GAS|Messages") FMessageWidgetRowSingnature MessageWidgetRowDelegate; protected: UPROPERTY(EditDefaultsOnly,BlueprintReadOnly,Category="Widget Data") TObjectPtr<UDataTable> MessageWidgetDataTable; template<typename T> T* GetDataTableRowByTag(UDataTable* DataTable,const FGameplayTag& Tag); }; template <typename T> T* UOverlayAuraWidgetController::GetDataTableRowByTag(UDataTable* DataTable, const FGameplayTag& Tag) { return DataTable->FindRow<T>(Tag.GetTagName(), TEXT(""));; }

OverlayAuraWidgetController.cpp

// Fill out your copyright notice in the Description page of Project Settings. #include "UI/WidgetController/OverlayAuraWidgetController.h" #include "AbilitySystem/AuraAbilitySystemComponentBase.h" #include "AbilitySystem/AuraAttributeSet.h" #include "Engine/Engine.h" #include "GameFramework/Pawn.h" class UAuraAttributeSet; void UOverlayAuraWidgetController::BroadcastInitialValues() { //这里应该绑定一个事件,获取到AuraAttributeSet const UAuraAttributeSet* AuraAttributeSet = CastChecked<UAuraAttributeSet>(AttributeSet); // 获取到 Health 和 MaxHealth 属性，并进行广播 OnHealthChangedSignature.Broadcast(AuraAttributeSet->GetHealth()); OnMaxHealthChangedSignature.Broadcast(AuraAttributeSet->GetMaxHealth()); OnManaChangedSignature.Broadcast(AuraAttributeSet->GetMana()); OnMaxManaChangedSignature.Broadcast(AuraAttributeSet->GetMaxMana()); } void UOverlayAuraWidgetController::BindCallbacksToDependencies() { const UAuraAttributeSet* AuraAttributeSet = CastChecked<UAuraAttributeSet>(AttributeSet); //绑定血量 AbilitySystemComponent->GetGameplayAttributeValueChangeDelegate( AuraAttributeSet->GetHealthAttribute()).AddLambda( [this](const FOnAttributeChangeData& Data) { OnHealthChangedSignature.Broadcast(Data.NewValue); } ); AbilitySystemComponent->GetGameplayAttributeValueChangeDelegate( AuraAttributeSet->GetMaxHealthAttribute()).AddLambda( [this](const FOnAttributeChangeData& Data) { OnMaxHealthChangedSignature.Broadcast(Data.NewValue); } ); //绑定蓝量 AbilitySystemComponent->GetGameplayAttributeValueChangeDelegate( AuraAttributeSet->GetManaAttribute()).AddLambda( [this](const FOnAttributeChangeData& Data) { OnManaChangedSignature.Broadcast(Data.NewValue); } ); AbilitySystemComponent->GetGameplayAttributeValueChangeDelegate( AuraAttributeSet->GetMaxManaAttribute()).AddLambda( [this](const FOnAttributeChangeData& Data) { OnMaxManaChangedSignature.Broadcast(Data.NewValue); } ); Cast<UAuraAbilitySystemComponentBase>(AbilitySystemComponent)->EffectAssetTags.AddLambda( [this](const FGameplayTagContainer& AssetTags) { for(const FGameplayTag& Tag : AssetTags) { //检查 MessageTag 是否是Data表内的 MessageTag,如何不是就会返回False FGameplayTag MessageTag = FGameplayTag::RequestGameplayTag(FName("Message")); if(Tag.MatchesTag(MessageTag)) { const FUIWidgetRow* Row = GetDataTableRowByTag<FUIWidgetRow>(MessageWidgetDataTable , Tag); if(Row) { MessageWidgetRowDelegate.Broadcast(*Row); } } } } ); }

修改WBP_GlobeProgressBar

在UI添加一个ProgressBar_Ghost