Common Utils plugin for UE

Features

• XRange
• Property Utils
• Excel Utils
• Lua Utils
• Object Pool
• Any
• Javascript-like Promise

XRange

Python like

	for (auto i : XRange(1))
	{
		UE_LOG(LogTemp, Warning, TEXT("Index: %d"), i);        

	}

	for (auto i : XRange(1,100))
	{
		UE_LOG(LogTemp, Warning, TEXT("Index: %d"), i);        

	}

	for (auto i : XRange(100,1, -2))
	{
		UE_LOG(LogTemp, Warning, TEXT("Index: %d"), i);        
	}

	TArray<int> Array = {3,2,1};
	for (auto Item : XRange(Array))
	{
		UE_LOG(LogTemp, Warning, TEXT("Index: %d, Value: %d"), Item.Key, Item.Value);        
	}

PropertyUtils

Help for reading and writing properties of UObject (Include Blueprint)

	auto Actor = NewObject<AActor>();
	auto Wrapper = UPUObjectWrapper::Create(Actor, FPropertyFilters::NoFiltering);
	// access private member
	auto Prop = Wrapper->GetPropertyByName(TEXT("bCanBeDamaged"));
	bool bCanBeDamaged = Prop->GetValue<bool>();
	Prop->SetValue(!bCanBeDamaged);

	ensure(Actor->CanBeDamaged() == !bCanBeDamaged);

ExcelUtils

Help for reading and writing excel files(.xlsx) in c++ and blueprint, only works on Windows

	auto ExcelFile = UExcelFile::CreateExcelFile(TEXT("G:/Test.xlsx"));
	auto Sheet = ExcelFile->AddSheet(TEXT("TestSheet"));
	ExcelFile->AddRow(Sheet, 1, {TEXT("Col1"), TEXT("Col2")});
	ExcelFile->Save();

LuaUtils

• Auto add scope timer for every lua function, make lua profiling easier in Insight.

ObjectPool

Help to reduce the memory allocation

• FFastUObjectPool, a pool used for UObject
• FNormalObjectPool, a dynamic size pool which can be collected by gc , good for memory usage
• FFixedObjectPool, a fixed size pool , cache friendy
• FFlatObjectPool, a balance between cache friendly and memory usage

Any

implementation of any in UE

	int Num = 1;
	FAny Any = Num;
	Num = AnyCast<int>(Any) + 1;

Promise

Provide a Javascript-like promise, but not strictly follow the Rules of Promise/A+.

	auto Promise = FPromise:New()
	Promise.Then([](int Num){
		// todo		
	});

	Promise.Resolve(1);