Book Image

Unreal Engine 4.x Scripting with C++ Cookbook - Second Edition

By : John P. Doran, William Sherif, Stephen Whittle
Book Image

Unreal Engine 4.x Scripting with C++ Cookbook - Second Edition

By: John P. Doran, William Sherif, Stephen Whittle

Overview of this book

Unreal Engine 4 (UE4) is a popular and award-winning game engine that powers some of the most popular games. A truly powerful tool for game development, there has never been a better time to use it for both commercial and independent projects. With more than 100 recipes, this book shows how to unleash the power of C++ while developing games with Unreal Engine. This book takes you on a journey to jumpstart your C++ and UE4 development skills. You will start off by setting up UE4 for C++ development and learn how to work with Visual Studio, a popular code editor. You will learn how to create C++ classes and structs the Unreal way. This will be followed by exploring memory management, smart pointers, and debugging your code. You will then learn how to make your own Actors and Components through code and how to handle input and collision events. You will also get exposure to many elements of game development including creating user interfaces, artificial intelligence, and writing code with networked play in mind. You will also learn how to add on to the Unreal Editor itself. With a range of task-oriented recipes, this book provides actionable information about writing code for games with UE4 using C++. By the end of the book, you will be empowered to become a top-notch developer with UE4 using C++ as your scripting language!
Table of Contents (16 chapters)

Collision – letting objects pass through one another using Ignore

Collision settings are fairly easy to get started with. There are three classes of intersection for collisions:

  • Ignore: Collisions that pass through each other without any notification.
  • Overlap: Collisions that trigger the OnBeginOverlap and OnEndOverlap events. Interpenetration of objects with an Overlap setting is allowed.
  • Block: Collisions that prevent all interpenetration, and prevent objects from overlapping each other at all.

Objects are classed into one of many Object Types. The Collision settings for a particular Blueprint's Component allow you to class the object as an Object Type of your choice, as well as specify how that object collides with all other objects of all other types. This takes a tabular format in the Details | Collision section of the Blueprint Editor.

For example, the following...