虚幻引擎5 GAS开发俯视角RPG游戏 P06-29 属性信息委托

AA陈超2025-11-04 13:52

1.在BroadcastInitialValues函数里,我们把属性集里的属性广播出去

(1)建立动态多播委托:

cpp 复制代码

DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FOnAttributeInfoSignature, const FAttributeInfo&, Info);

cpp 复制代码

UPROPERTY(BlueprintAssignable, BlueprintReadWrite, Category="CC|GAS|Attributes")
	FOnAttributeInfoSignature OnAttributeInfoSignature;

(2)创建一个出数据资产:

cpp 复制代码

protected:
	UPROPERTY(EditDefaultsOnly, Category="CC|GAS|Attributes")
	TObjectPtr<UCC_AttributeInfo> AttributeInfo;

2.当Info里的标签等于Attributes_Primary_Strength时,我们把Strength值赋值给Info.Value

cpp 复制代码

void UCC_AttributeMenuWidgetController::BroadcastInitialValues()
{
	if (CC_AttributeSet == nullptr)
	{
		CC_AttributeSet = CastChecked<UCC_AttributeSet>(AttributeSet);
	}
	checkf(AttributeInfo, TEXT("在[%s]中没有配置AttributeInfo"), *GetNameSafe(this));
	FAttributeInfo Info = AttributeInfo->FindAttributeInfoFromTag(CC_GameplayTags::Attributes_Primary_Strength);
	Info.AttributeValue = CC_AttributeSet->GetStrength();
	
	OnAttributeInfoSignature.Broadcast(Info);
}

3.配置资产:

4.调用函数:

Source/CC_Aura/Public/UI/WidgetController/CC_WidgetController.h:

效果:

力量出来了