Book Image

Unity 2020 By Example - Third Edition

By : Robert Wells
Book Image

Unity 2020 By Example - Third Edition

By: Robert Wells

Overview of this book

The Unity game engine, used by millions of developers around the world, is popular thanks to its features that enable you to create games and 3D apps for desktop and mobile platforms in no time. With Unity 2020, this state-of-the-art game engine introduces enhancements in Unity tooling, editor, and workflow, among many other additions. The third edition of this Unity book is updated to the new features in Unity 2020 and modern game development practices. Once you’ve quickly got to grips with the fundamentals of Unity game development, you’ll create a collection, a twin-stick shooter, and a 2D adventure game. You’ll then explore advanced topics such as machine learning, virtual reality, and augmented reality by building complete projects using the latest game tool kit. As you implement concepts in practice, this book will ensure that you come away with a clear understanding of Unity game development. By the end of the book, you'll have a firm foundation in Unity development using C#, which can be applied to other engines and programming languages. You'll also be able to create several real-world projects to add to your professional game development portfolio.
Table of Contents (16 chapters)

Patrolling the environment

The first of the three states we'll implement is the patrol state. In this state, we want the chick to walk around the environment, following a predefined route. We achieved this in the previous chapter when we configured an animated Destination object that jumped around the environment. We'll reuse that object and the associated movement functionality for the patrol state, making a few tweaks to fit our needs. Previously, the chick followed this object without end, whereas the patrol state requires the NPC to consider whether the player can be seen on its route. If the player is spotted, the hunt should begin, and the current state should change to the chase state.

Each state will be contained in its own class:

  1. Create a PatrolState script:
    public class PatrolState : MonoBehaviour, IFSMState
    {
        public float MovementSpeed = 1.5f;
        public float Acceleration = 2.0f;
        public...