Book Image

Unity 2017 2D Game Development Projects

By : Francesco Sapio, Lauren S. Ferro
Book Image

Unity 2017 2D Game Development Projects

By: Francesco Sapio, Lauren S. Ferro

Overview of this book

<p>2D games are everywhere! Timeless and popular, 2D games represent a substantial segment of the games market. The Unity engine has revolutionized the gaming industry, by making it easier for game developers to create quality games on a budget. If you are looking for a guide to create 2D games using Unity 2017, look no further. With this book, you will learn all the essentials of 2D game development by creating three epic games in a step-by-step manner throughout the course of this book. </p><p> </p><p>The first game will have you collecting as many cakes as possible. The second will transport you to outer space to traverse as far as possible while avoiding enemy spaceships. The last game will have you running and jumping across platforms to collect coins and other exotic items. </p><p> </p><p>Throughout all these three games, you will create characters, make them move, and create some enemies. And then, of course, write code to destroy them!. After showing you the necessities of creating a game, this book will then help you to porting the game to a mobile platform, and provide a path to publish it on the stores. </p><p> </p><p>By the end of this book, you will not only have created three complete great games, but be able to apply your knowledge to create and deploy your own games.</p>

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Table of Contents (14 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
Get in touch
Free Chapter
1
Press Start
Press Start
Atoms of games
Different approaches to games
The game design process
Developing 2D games
The Unity Engine
An overview of built-in features in Unity
Preparing for the projects in this book
Summary
2
Working with Assets
Working with Assets
An overview of collecting games
Textures and Sprites
Sprite Render
Sprite Editor
Sprite Packer
Sprite Creator is your friend when you have no assets
Setting up the Angel Cakes project
Best practices
Summary
3
Let’s Make Some Prefabs
Let’s Make Some Prefabs
Basics of audio and sound FX in Unity
Importing audio
Integrating background music in our game
Creating the Angel and the PlayerController
A brief overview of Unity's physics system
Assembling the Angel
Moving the character to the new position
Collectable system
Prefabs for our Game Objects
Building the Map
Summary
4
It’s about U and I
It’s about U and I
Overview of the UI
Designing the user interface
Four types of UI
Usability and function
UI is not UX
Designing UIs for games
Introduction to the UI system in Unity
Building UIs in Angel Cakes
Creating a Game Over Screen
Last tweaks
Testing
Summary
5
Freeze! Creating an Intergalactic Shooter
Freeze! Creating an Intergalactic Shooter
An overview of game #2
Designing game #2
Setting up the project for game #2
Introduction to the animation system
Summary
6
No One Is Alone Forever
No One Is Alone Forever
Creating a shooting system
Player controller
Enemy controller
Alternative enemy controller
Shooting with passion
Exercises
Summary
7
Getting Serious About Gameplay
Getting Serious About Gameplay
Building the UI
Building an infinite scrolling map
Creating the prefabs
Including power-ups
Spawning system
Testing the game
Exercises
Other things you could consider adding to the game
Summary
8
Building a Tilemap and Importing it into Unity
Building a Tilemap and Importing it into Unity
Platforming games
Side-scrolling
Infinite scrolling/endless runner
Overview of the project for game #3 - RETROformer
Creating tiles
Introduction to the program - Tiled and Tiled2Unity
Changing level properties
Importing tilesets into Unity with Tiled2Unity
Post-Tiled2Unity
Summary
9
Look, It Moves
Look, It Moves
Advanced animations
Setting up the sprite sheet for the animations
Creating the animations from the sprite sheet
Building the Animation State Machine
Summary
10
Let’s Get Physical
Let’s Get Physical
Physics Material 2D
Building the panda hero
Moving the panda
Player Controller
Summary
11
Don’t Forget to Save!
Don’t Forget to Save!
Save and load systems
Jump pads
Wrapping up gameplay
Enhancing the environment
Testing
Summary
12
The Nature of Export
The Nature of Export
Implementing mobile input for the game
Exporting the game
Summary
13
Other Books You May Enjoy
Other Books You May Enjoy
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Alternative enemy controller

In order to give variety to our game, this section explores an alternative to the previous enemy controller. Once again, this shows how to create challenging enemies with just a few lines of code, without complex AI algorithms that can be confusing for beginners.

Creating the second enemy controller

To create the second enemy controller, we can start by duplicating the enemy controller; just select it and press Ctrl + D (if you are a Mac user, you need to press Command + D). The new script should be renamed EnemyControllerSmartAttacker.

Double-click to open it, and change the class name to EnemyControllerSmartAttacker, like the following:

// [...] 
public class EnemyControllerSmartAttacker : MonoBehaviour...
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