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OUYA Game Development by Example

OUYA Game Development by Example

By : John Donovan
4 (3)
Buy this Book
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OUYA Game Development by Example

OUYA Game Development by Example

4 (3)
By: John Donovan
Buy this Book

Overview of this book

The OUYA console and development kit gives you the power to publish video games for the players, creating a console marketplace of the gamers, for the gamers, and by the gamers. Using the OUYA developer kit and the Unity3D game engine, even beginners with a captivating game idea can bring it to life with a hint of imagination. OUYA Game Development by Example uses a series of feature-based, step-by-step tutorials that teach beginners how to integrate essential elements into a game engine and then combine them to form a polished gaming experience.
Table of Contents (18 chapters)
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OUYA Game Development by Example Beginner's Guide
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OUYA Game Development by Example Beginner's Guide
Credits
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Credits
About the Author
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About the Author
Acknowledgments
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Acknowledgments
About the Reviewers
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About the Reviewers
www.PacktPub.com
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www.PacktPub.com
Preface
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Preface
Lock Free Chapter
1
Experiencing the OUYA
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Experiencing the OUYA
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Setting up the console
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Networking
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Displaying games
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Time for action – installing your first game
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Playing the OUYA
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Touch controls
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Summary
2
Installing Unity and the OUYA ODK
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Installing Unity and the OUYA ODK
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Installing the game engine
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Time for action – setting up Unity
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Downloading and configuring additional packages
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Time for action – downloading Java, the Android SDK, and the ODK
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Modifying the PATH variable
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Time for action – editing PATH on Mac OS
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Time for action – editing PATH on Windows
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Time for action – installing Android packages
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Configuring the USB connection
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Time for action – configuring the USB driver on Windows
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Time for action – exporting OUYA packages from Unity
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Time for action – importing packages into a new workspace
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Summary
3
Diving into Development
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Diving into Development
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Creating a 3D text prototype
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Time for action – manipulating the scene
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Time for action – creating and scripting 3D text
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Creating a custom function
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Time for action – writing a function
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Time for action – capturing data with return values
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Time for action – controlling functions with parameters
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Making our scripts interactive
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Time for action – adding keyboard interaction to scripts
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Deploying our code on OUYA
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Time for action – running your first test on OUYA
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Summary
4
Moving Your Player with Controller Input
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Moving Your Player with Controller Input
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Creating an interactive marble prototype
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Time for action – setting the scene
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Time for action – importing a Unity input script
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Time for action – turning input into movement
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Time for action – movement with the OUYA SDK
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Adding additional functionality to our marble
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Time for action – adding button features
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Time for action – improving the camera
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Completing our game
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Time for action – adding a goal zone
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Summary
5
Enhancing Your Game with Touch Dynamics
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Enhancing Your Game with Touch Dynamics
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Using the touchpad to interact with buttons
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Time for action – creating a cannon prefab
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Time for action – creating an interactive button
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Time for action – adding an impulse force to a rigidbody component
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Using cursor data to add touch input to games
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Time for action – reading mouse position in Unity
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Time for action – creating a vector from cursor movement
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Incorporating touch data into your mechanics
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Time for action – hiding the cursor on the screen
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Time for action – creating a target for the cannon
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Summary
6
Saving Data to Create Longer Games
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Saving Data to Create Longer Games
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Creating collectibles to save
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Time for action – creating a basic collectible
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Time for action – scripting the collectible
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Time for action – accessing the scripts on other objects
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Saving data with the Unity engine
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Time for action – saving data with PlayerPrefs
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Time for action – setting up a GUI Text object
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Time for action – counting cannonballs
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Time for action – checking high scores in a new scene
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Time for action – displaying high score values
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Saving data with the OUYA API
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Summary
7
Expanding Your Gameplay with In-app Purchases
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Expanding Your Gameplay with In-app Purchases
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The different kinds of in-app purchases
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Setting up a product on the OUYA developer portal
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Time for action – preparing your game for in-app purchasing
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Coding in-app purchasing in your game
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Time for action – creating a purchase screen
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Time for action – creating your first purchase function
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Time for action – saving and loading successful purchases
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Time for action – reflecting unlocked functionality in games
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Adding polish with Unity Asset Store packages
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Time for action – adding explosions to your cannonballs
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Pricing your in-app purchases
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Picking a monetization model
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Summary
8
Polishing and Prepping Your Game for Deployment
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Polishing and Prepping Your Game for Deployment
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Meeting the OUYA content guidelines
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Time for action – containing game elements within the safe zone
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Time for action – creating icons for your game
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Polishing Unity projects in depth
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Time for action – creating a title screen
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Time for action – creating a loss screen
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Time for action – creating a tutorial scene
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Time for action – linking your tutorial to your game
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Creating a following camera in Unity
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Time for action – creating a following third-person camera
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Time for action – adding audio to your game
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Packaging your project for submission
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Time for action – creating your game on the developer portal
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Summary
9
Blazing Your Own Development Trail
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Blazing Your Own Development Trail
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Expanding your skills with advanced challenges
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Time for action – creating a custom font with a text shader
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Time for action – creating a fire effect with a particle shader
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Time for action – saving the player's position
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Time for action – creating a reusable GUI Skin
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Time for action – making an automatically scaling GUI texture
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Time for action – adding realism to your scene with lightmapping
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Time for action – applying an ice Physics Material
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Popular game development methodologies
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Basic design patterns for larger code projects
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Getting started with version control
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Time for action – creating a BitBucket repository
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Time for action – preparing Unity for version control
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Time for action – making your first commit and push
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Finding your own answers to questions online
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Summary
1
Pop Quiz Answers
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Pop Quiz Answers
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Chapter 2, Installing Unity and the OUYA ODK
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Chapter 3, Diving into Development
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Chapter 4, Moving Your Player with Controller Input
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Chapter 5, Enhancing Your Game with Touch Dynamics
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Chapter 6, Saving Data to Create Longer Games
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Chapter 7, Expanding Your Gameplay with In-app Purchases
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Chapter 8, Polishing and Prepping Your Game for Deployment
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Chapter 9, Blazing Your Own Development Trail
2
Index
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Index

Time for action – adding keyboard interaction to scripts

Perform the following steps to add keyboard interaction to your scripts:

  1. Add the following if statement to your Update function that checks if the Return key is pressed:

    // Update is called once per frame
void Update()
{
  if(Input.GetKeyDown(KeyCode.Return))
  {

  }
}

    Everything contained within the if statement will run every time the Update function detects that the Return key has just been pressed down (there's a slightly different way to check if a key is being held down, but we'll cover that in the next chapter).

    We could add code directly inside the if statement to change the color of the text, but it's better to write a function for an action like that in case you want to replicate the same functionality outside of that if statement without writing redundant code, so we'll create a dedicated ChangeColor function.

  2. Declare the ChangeColor function below the Update function in your ColorChanger script, as shown in the following code...

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