Book Image

Mastering UI Development with Unity

By : Ashley Godbold
Book Image

Mastering UI Development with Unity

By: Ashley Godbold

Overview of this book

A functional UI is an important component for player interaction in every type of video game. Along with imparting crucial statistical information to the player, the UI is also the window through which the player engages with the world established by the game. Unity's tools give you the opportunity to create complex and attractive UIs to make your game stand out. This book helps you realize the full potential of Unity's powerful tools to create the best UI for your games by walking you through the creation of myriad user interface components. Learn how to create visually engaging heads-up-displays, pause menus, health bars, circular progress bars, animated menus, and more. This book not only teaches how to lay out visual elements, but also how to program these features and implement them across multiple games of varying genres. While working through the examples provided, you will learn how to develop a UI that scales to multiple screen resolutions, so your game can be released on multiple platforms with minimal changes.
Table of Contents (12 chapters)

Multi-touch input

Touchscreen devices generally have the ability to access multiple touches. The most common usage of multi-touch allows the player to pinch to zoom. Accessing multi-touch is pretty easy. You access touches with Input.GetTouch(index), where the index represents the index of the touch, with the first touch occurring at index 0. From there, you can access information pretty much in the same way as accessing information about a mouse.

You can also find out how many total touches are occurring with Input.touchCount.

You can find an example of how to implement pinch-to-zoom functionality here: https://unity3d.com/learn/tutorials/topics/mobile-touch/pinch-zoom?playlist=17138.