Static Const, Make Const Versions of UE4 Types - Epic Wiki

Static Const, Make Const Versions of UE4 Types

Contents

• 1 Overview
• 2 .h
• 3 .cpp
• 4 Keep Global Namespace Clean
• 5 Summary

Overview

Dear Community,

Using Constant versions of complex variable types can be useful,

especially if these variables are used every tick but their values never change.

To make a Constant version of something like an FLinearColor or an FName you can do this:

.h

public:   static const FLinearColor Red; static const FName HeadSocket;

.cpp

// Copyright 1998-2013 Epic Games, Inc. All Rights Reserved.   #include "YourGameGame.h"   ////////////////////////////////////////////////////////////////////////// // AYourClass   //you declare the static const outside of any function, but make sure to include the YourClass:: part 😃   const FName AYourClass::HeadSocket = FName("Head"); const FLinearColor AYourClass::Red = FLinearColor(1,0,0,1);   AYourClass::AYourClass(const class FPostConstructInitializeProperties& PCIP) : Super(PCIP) {   }

Keep Global Namespace Clean

Make sure to specify your class context when you declare your static const variables!

Myclass::

Summary

Enjoy!

Rama (talk)

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