Unity Android Game Development by Example Beginner's Guide

Book Image

Unity Android Game Development by Example Beginner's Guide

By : Thomas James Finnegan

Book Image

Unity Android Game Development by Example Beginner's Guide

By: Thomas James Finnegan

Overview of this book

Powerful and continuing to grow, the mobile market has never been bigger and more demanding of great games. Android continues to prove itself as a strong contender in this challenging market. With Unity 3D, great games can be made for Android quickly and easily. With its great deployment system, the Android platform is now only one click away. Unity Android Game Development by Example Beginner's Guide dives straight into making real, fully-functional games, with hands-on examples and step-by-step instructions to give you a firm grounding in Unity 3D and Android. Everything necessary for creating a complete gaming experience is covered and detailed throughout the course of this book. Using clear and practical examples that progressively build upon each other, this book guides you through the process of creating games in Unity for Android. Start by learning about all the great features that Unity and Android have to offer. Next, create a Tic-Tac-Toe game while learning all about interfaces. After that, learn about meshes, materials, and animations with the creation of a tank battle game. You will then learn how to expand your game's environment with the addition of shadows and a skybox. Adding on this, you will also learn how to expand the tank battle by creating enemies and using path finding to chase the player. Next, explore touch and tilt controls with the creation of a space fighter game. Then, learn about physics while recreating the most popular mobile game on the market. You will then expand the space fighter game with the addition of all the special effects that make a game great. Finally, complete your experience by learning the optimization techniques required to keep your games running smoothly. While Unity is available for both Mac and Windows, the book is presented working from a Windows environment. Programming in Unity is possible in C#, JavaScript, and Boo. This book will be working in C# and the final projects will be provided in C# and JavaScript. From nothing to a fully-featured mobile game, Unity Android Game Development by Example Beginner's Guide takes you through everything it takes to create your next game for the Android platform.

Unity Android Game Development by Example Beginner's Guide

Unity Android Game Development by Example Beginner's Guide

Credits

About the Author

About the Author

About the Reviewers

About the Reviewers

www.PacktPub.com

www.PacktPub.com

Preface

Free Chapter

Saying Hello to Unity and Android

Saying Hello to Unity and Android

Understanding what makes Unity great

Understanding what makes Android great

Understanding how Unity and Android work together

Differences between Pro and Basic

Setting up the development environment

Time for action – installing the JDK

Time for action – installing the Android SDK

Time for action – installing Unity 3D

Optional code editor

Connecting to a device

Time for action – simple device connection

Time for action – connecting trickier devices

Building a simple application

Time for action – Hello World

Looking Good – Graphical Interface

Looking Good – Graphical Interface

Creating a Tic-tac-toe game

Time for action – creating Tic-tac-toe

Finishing the game

Time for action – finish creating the game

GUI Skins and GUI Styles

A prettier form of Tic-tac-toe

Time for action – styling the game

Dynamic positioning

Time for action – the dynamic GUI

A better way to build to device

Time for action – build and run

The Backbone of Any Game – Meshes, Materials, and Animations

The Backbone of Any Game – Meshes, Materials, and Animations

Time for action – the setup

Importing the meshes

Time for action – importing the tank

Tank import settings

Time for action – creating the tank

Time for action – keeping score

Time for action – controlling the chassis

Time for action – controlling the turret

Time for action – putting the pieces together

Creating the materials

Time for action – creating the city

Time for action – moving treads

Time for action – setting up target's animations

Time for action – creating the target state machine

Time for action – scripting the target

Time for action – creating the target

Ray tracing to shoot

Time for action – simple shooting

Setting the Stage – Camera Effects and Lighting

Setting the Stage – Camera Effects and Lighting

The camera effects

Time for action – adding a skybox and distance fog

Time for action – creating the pointer

Time for action – controlling the indicator

Time for action – working with a second camera

Time for action – using the boost effect

Time for action – adding more lights

Time for action – creating a lightmap

Time for action – applying headlights

Time for action – a tank with a shadow

Getting Around – Pathfinding and AI

Getting Around – Pathfinding and AI

Understanding AI and pathfinding

Time for action – creating the NavMesh

The NavMeshAgent component

Time for action – creating the enemy

Time for action – the player is over here

Time for action – chasing the player

Time for action – getting ready to fire

Attacking the enemy

Time for action – giving it a weakness

Time for action – creating spawns

Specialties of the Mobile Device – Touch and Tilt

Specialties of the Mobile Device – Touch and Tilt

Time for action – creating the project

Controlling with tilt

Time for action – steering the space ship

Time for action – flying asteroids

Time for action – adding collisions

Time for action – adding an enemy ship

Controlling with touch

Time for action – touch to shoot

Time for action – creating a space spawn

Throwing Your Weight Around – Physics and a 2D Camera

Throwing Your Weight Around – Physics and a 2D Camera

2D games in a 3D world

Time for action – preparing the world

Time for action – creating planks

Time for action – sliding and bouncing

Time for action – creating the pigs

Time for action – creating the red bird

Time for action – creating the slingshot

Time for action – controlling the camera

A better background

Time for action – creating the parallax background

The flock variety

Time for action – creating the yellow bird

Time for action – creating the blue bird

Time for action – creating the black bird

Level selection

Time for action – creating the level selection

Special Effects – Sound and Particles

Special Effects – Sound and Particles

Understanding audio

Time for action – adding background music

Time for action – warning the player

Understanding particle systems

Time for action – adding engine trails

Putting it together

Time for action – adding explosions

Time for action – adding laser blasts

Optimization

Minimizing the application footprint

Tracking performance

Time for action – tracking scripts

Time for action – occluding tanks

Pop Quiz Answers

Pop Quiz Answers

Chapter 5, Getting Around – Pathfinding and AI

Chapter 6, Specialties of the Mobile Device – Touch and Tilt

Index

Customer Reviews

5 star

0

4 star

0

3 star

0

2 star

0

1 star

0

Time for action – adding background music

Let's get started with a single script to control our background music.

We will start by creating a new script and naming it FadeIn.
This script begins with three variables. The first is the goal volume that the script has to reach. The second is the number of seconds the transition will take. The last is the time when the transition began.
```
public float maxVolume = 1f;
public float fadeLength = 1f;
private float fadeStartTime = -1f;
```
Next, we make use of the Awake function. It begins by looking at the audio variable, which is automatically supplied by Unity, to check for an attached Audio Source component. If one cannot be found, the gameObject is destroyed and the function is exited.
```
public void Awake() {
  if(audio == null) {
    Destroy(gameObject);
    return;
  }
```
The Awake function ends by setting its volume to 0 and playing it if it isn't already.
```
  audio.volume = 0;

  if(!audio.isPlaying)
    audio.Play();
}
```
To cause the transition over time, we use...