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

The Pawn Blueprint

The Pawn Blueprint used in MotionControllerMap is MotionControllerPawn. This Blueprint represents the player in the level. Double-click it to open the Blueprint Editor.

The following screenshot shows the Components panel of the MotionControllerPawn Blueprint. Below DefaultSceneRoot, there is a Scene Component named VROrigin. The VROrigin Scene Component represents the tracking origin of the HMD and is used as a reference point to Camera and the Motion Controllers. Some HMDs use the tracking origin at floor level, while others use it at eye level:

There is a Motion Controller Component that could be added as a child Component of VROrigin. However, the VR template created a Blueprint named BP_MotionController that contains the Motion Controller Component and possesses other features.

MotionControllerPawn has two variables of the BP_MotionController type, which...