TSoftObjectPtr和TSoftClassPtr加载资源方式

本文介绍了一种在Unreal Engine 4 (UE4)中处理软对象指针和软类指针的方法，用于从资源路径加载指定类型的对象实例或类。通过两个模板函数`GetObjectFromAsset`和`GetClassFromAsset`，可以方便地获取SkeletalMesh和AnimInstance等类型的实例。

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template<class T>
T* GetObjectFromAsset(TSoftObjectPtr<T> AssMat)
{
	if (AssMat.Get() && AssMat.IsValid())
	{
		return AssMat.Get();
	}
	else if (AssMat.ToString() != TEXT(""))
	{
		return LoadObject<T>(NULL, *AssMat.ToString(), NULL, LOAD_None, NULL);
	}
	return NULL;
};


template<class T>
TSubclassOf<T> GetClassFromAsset(TSoftClassPtr<T> AssMat)
{
	if (AssMat.Get() && AssMat.IsValid())
	{
		return AssMat.Get();
	}
	else if (AssMat.ToString() != TEXT(""))
	{
		return LoadClass<T>(NULL, *AssMat.ToString(), NULL, LOAD_None, NULL);
	}
	return NULL;
};



PROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "DigitalMan")
		TSoftObjectPtr<USkeletalMesh> DigitalMesh;

	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "DigitalMan")
		TSoftClassPtr<UAnimInstance> DigitalAnimBP; //TSubclassOf<UAnimInstance> DigitalAnimBP;

	

TSubclassOf<UAnimInstance> UDigitalManFunctionLibrary::GetAnimInstanceFromAssetPtr(TSoftClassPtr<UAnimInstance> AssMat)
{
	return GetClassFromAsset<UAnimInstance>(AssMat);
}


USkeletalMesh* UDigitalManFunctionLibrary::GetSkeletalMeshFromAssetPtr(TSoftObjectPtr<USkeletalMesh> AssMat)
{
	return GetObjectFromAsset<USkeletalMesh>(AssMat);
}


USkeletalMesh* TemDigitalMesh = UDigitalManFunctionLibrary::GetSkeletalMeshFromAssetPtr(DigitalMesh);


TSubclassOf<UAnimInstance> TemDigitalAnimBP = UDigitalManFunctionLibrary::GetAnimInstanceFromAssetPtr(DigitalAnimBP);