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Game Development Projects with Unreal Engine

You're reading from Game Development Projects with Unreal Engine Learn to build your first games and bring your ideas to life using UE4 and C++

Product type Paperback

Published in Nov 2020

Publisher Packt

ISBN-13 9781800209220

Length 822 pages

Edition 1st Edition

Languages

C++

Tools

Unreal

Concepts

Game Scripting

Authors (5):

Hammad Fozi

Devin Sherry

Gustavo Reis

David Pereira

Gonçalo Marques

+1 more

View More author details

Table of Contents (19) Chapters

Preface

1. Unreal Engine Introduction

2. Working with Unreal Engine FREE CHAPTER

3. Character Class Components and Blueprint Setup

4. Player Input

5. Line Traces

6. Collision Objects

7. UE4 Utilities

8. User Interfaces

9. Audio-Visual Elements

10. Creating a SuperSideScroller Game

11. Blend Spaces 1D, Key Bindings, and State Machines

12. Animation Blending and Montages

13. Enemy Artificial Intelligence

14. Spawning the Player Projectile

15. Collectibles, Power-Ups, and Pickups

16. Multiplayer Basics

17. Remote Procedure Calls

18. Gameplay Framework Classes in Multiplayer

Variable Replication

One of the ways the server can keep the clients synchronized is by using variable replication. The way it works is that every specific number of times per second (defined per actor in the AActor::NetUpdateFrequency variable, which is also exposed to blueprints) the variable replication system in the server will check whether there are any replicated variables (explained in the next section) in the client that needs to be updated with the latest value.

If the variable meets all of the replication conditions, then the server will send an update to the client and enforce the new value.

For example, if you have a replicated Health variable and the client on its end uses a hacking tool to set the value of the variable from 10 to 100, then the replication system will enforce the real value from the server and change it back to 10, which nullifies the hack.

Variables are only sent to the client to be updated if:

The variable is set to replicate.

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Authors (5)

Reis

Reis

Gustavo Reis is a self-taught programmer and created his first video game on a ZX Spectrum 128k when he was 12 years old. He graduated in computer science and then earned a master's degree and a Ph.D. in Artificial Intelligence. By collaborating with three colleagues at the Polytechnic Institute of Leiria, he created a Bachelor's Degree in Games and Multimedia. Gustavo worked on several indie game projects and won the 'Best use of Playstation Platform' award at PlayStation Talents for the game Higher Plains. Currently, he is the coordinator of the Games and Multimedia bachelor's degree at Polytechnic Institute of Leiria, where he teaches various topics, such as Game Engines II, Artificial Intelligence Applied to Games, Computer Graphics, and Advanced Game Programming. He is also a senior developer at Sound Particles, where he is working on the integration of the Sound Particles software with popular game engines.

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Hammad Fozi

Hammad Fozi

Hammad Fozi comes from a gaming background and has been extensively working on Unreal Engine since 2017. He has been part of some very successful AAA projects such as Virtua FanCave (and Metaverse), Unnamed AAA Sci-Fi DJ Experience, Heroes and Generals, and Creed: Rise to Glory VR. Hammad has worked with teams who have had experience working at Ubisoft, Warner Bros. Games, 2K Games, and more! He has successfully helped teams consisting of 10–30 people to scale to 150+ in size over his very short yet impressive career. Hammad currently works as a senior C++ game developer and has extensive experience in working with VR and augmented reality, PC/PS5/Xbox/Android/iOS/macOS game development, and Web3/Metaverse/NFT systems (within Unreal Engine).

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Devin Sherry

Devin Sherry

Devin Sherry is originally from Levittown, NY, located on Long Island. He studied the topics of Game Development and Game Design at the University of Advancing Technology where he had earned his Bachelor of Arts in Game Design in 2012. During his time in college, Devin worked as a game and level designer with a group of students called Autonomous Games on a real-time strategy styled, third-person shooter called The Afflicted using Unreal Engine 3/UDK where it was presented at GDC in 2013 at the GDC Play Showcase. Today, Devin works as an independent game developer located in Tempe, Arizona, where he works on personal and contracted projects. His achievements include the title Radial Impact, which can be found in the Community Contributions section of the Learn Tab of Unreal Engine 4's Launcher, and his work on his YouTube Channel, Devin Level Design, where he educates viewers on game development within Unreal Engine 3, UDK, and Unreal Engine 4.

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Gonçalo Marques

Gonçalo Marques

Gonçalo Marques has been an active gamer since the age of 6. He has been using Unreal Engine since 2016 and has done freelance and consulting work using the engine. Gonçalo also released a free and open source plugin called UI Navigation, which has garnered an extremely positive reception with over 100,000 downloads and is still receiving frequent updates and fixes. Thanks to the development of this plugin, he became an Epic MegaGrant recipient. He is now working at Funcom ZPX, a game studio in Lisbon that has contributed to games such as Conan Exiles, Mutant Year Zero, and Moons of Madness. Gonçalo is currently working on a new Funcom game in the Dune universe.

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David Pereira

David Pereira

David Pereira started making games in 1998 when he learned how to use Clickteam's The Games Factory. He graduated in computer science from FCT-UNL, where he learned about C++, OpenGL, and DirectX, which allowed him to create more complex games. After working in IT consulting for a few years, he joined Miniclip in Portugal where he worked on popular mobile games such as 8 Ball Pool, Gravity Guy 1 and Gravity Guy 2, Extreme Skater, iStunt2, Hambo, and many others. Since then, he has been the lead developer for MPC in the John Lewis Christmas VR Experience, worked on an earlier version of Mortal Shell, and did volunteer work teaching people with Asperger's how to make games with Unreal Engine 4. Today, he's working on his own game, a soon-to-be-announced first-person action RPG.

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