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Unreal Engine 5 Game Development with C++ Scripting

You're reading from  Unreal Engine 5 Game Development with C++ Scripting

Product type Book
Published in Aug 2023
Publisher Packt
ISBN-13 9781804613931
Pages 384 pages
Edition 1st Edition
Languages
Author (1):
ZHENYU GEORGE LI ZHENYU GEORGE LI
Profile icon ZHENYU GEORGE LI

Table of Contents (18) Chapters

Preface 1. Part 1 – Getting Started with Unreal C++ Scripting
2. Chapter 1: Creating Your First Unreal C++ Game 3. Chapter 2: Editing C++ Code in Visual Studio 4. Chapter 3: Learning C++ and Object-Oriented Programming 5. Chapter 4: Investigating the Shooter Game’s Generated Project and C++ Code 6. Part 2 – C++ Scripting for Unreal Engine
7. Chapter 5: Learning How to Use UE Gameplay Framework Base Classes 8. Chapter 6: Creating Game Actors 9. Chapter 7: Controlling Characters 10. Chapter 8: Handling Collisions 11. Chapter 9: Improving C++ Code Quality 12. Part 3: Making a Complete Multiplayer Game
13. Chapter 10: Making Pangaea a Network Multiplayer Game 14. Chapter 11: Controlling the Game Flow 15. Chapter 12: Polishing and Packaging the Game 16. Index 17. Other Books You May Enjoy

Outputting debug messages

Using logs in programming has several benefits. Firstly, it can help developers to trace runtime information and use the clues to troubleshoot problems. Secondly, developers can also use logs to track and fix dynamic runtime errors that are usually difficult to identify during static debugging. Finally, logs can be used to monitor program running states for analyzing and improving performance, security, and quality. Logs are an essential tool for developers.

Here, we will introduce two ways through which you can output debug messages in Unreal: the UE_LOG macro and the AddOnScreenDebugMessage function.

Using the UE_LOG macro

UE_LOG is a macro that logs messages to either the Output Log window, the Console, or the log files. Use the tilde key (~) to open and close the console.

Figure 9.6 – UE5 editor Output Log window

Figure 9.6 – UE5 editor Output Log window

The syntax of UE_LOG is as follows:

UE_LOG(<LogType>, <LogLevel>, <Message>...
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