Book Image

Blueprints Visual Scripting for Unreal Engine - Second Edition

By : Marcos Romero, Brenden Sewell
Book Image

Blueprints Visual Scripting for Unreal Engine - Second Edition

By: Marcos Romero, Brenden Sewell

Overview of this book

Blueprints is the visual scripting system in Unreal Engine that enables programmers to create baseline systems and can be extended by designers. This book helps you explore all the features of the Blueprint Editor and guides you through using Variables, Macros, and Functions. You’ll also learn about object-oriented programming (OOP) and discover the Gameplay Framework. In addition to this, you’ll learn how Blueprint Communication allows one Blueprint to access information from another Blueprint. Later chapters will focus on building a fully functional game using a step-by-step approach. You’ll start with a basic first-person shooter (FPS) template, and each chapter will build on the prototype to create an increasingly complex and robust game experience. You’ll then progress from creating basic shooting mechanics to more complex systems, such as user interface elements and intelligent enemy behavior. The skills you will develop using Blueprints can also be employed in other gaming genres. In the concluding chapters, the book demonstrates how to use arrays, maps, enums, and vector operations. Finally, you’ll learn how to build a basic VR game. By the end of this book, you’ll have learned how to build a fully functional game and will have the skills required to develop an entertaining experience for your audience.
Table of Contents (22 chapters)
Free Chapter
Section 1: Blueprint Fundamentals
Section 2: Developing a Game
Section 3: Enhancing the Game
Section 4: Advanced Blueprints

Animating a zoomed view

A core element of modern first-person shooters is a variable FOV in the form of a player's ability to look down the scope of a gun to get a closer view of a target. This is a significant contributor to the feeling of accuracy and control that modern shooters provide. Let's add a simple form of this functionality to our prototype.

In an empty section of the grid next to your Mouse input nodes, right-click, search for zoom, and add an InputAction Zoom trigger node. We want to modify the FOV value that is contained within the First Person Camera Component, so we go to the Components panel and drag First Person Camera out onto Event Graph.

Drag the output pin into empty grid space, search for the Set Field Of View node, and place it. Lowering the FOV gives the effect of zooming into a narrower area in the center of the screen. Since the Default FOV...