Book Image

Unity UI Cookbook

By : Francesco Sapio
Book Image

Unity UI Cookbook

By: Francesco Sapio

Overview of this book

With the increasing interest in game development, it's essential to design and implement a UI that reflects the game settings and shows the right information to the player. The Unity system is used to create complex and aesthetically pleasing user interfaces in order to give a professional look and feel to a game. Although the new Unity UI system is powerful and quite easy to use, by integrating it with C# scripts, it's possible to realize the potential of this system and bring an impressive UI to games. This guide is an invaluable collection of recipes if you are planning to use Unity to develop a game. Starting with the basic concepts of the UI components, we’ll take you all the way through to creating complex interfaces by including animations and dynamics elements. Based on real-world problems, these recipes will start by showing you how to make common UI elements such as counters and healthbars. You will then get a walkthrough of how to manage time using timers, and will learn how to format them. You will move on to decorating and animating the UI elements to vivify them and give them a professional touch. Furthermore, you will be guided into the 3D UI world and into HUD scripting. Finally, you will discover how to implement complex minimaps in the interface.
Table of Contents (17 chapters)
Unity UI Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Making an input field for a password with a lower bound limit for characters


Sometimes, a password cannot be shorter than a lower bound character limit. This happens for a lot of reasons, including security. In Unity, we can easily set an upper bound limit for characters by specifying it in the Input Field (Script) component inside the Character Limit variable. In this recipe, what we are going to achieve is the checking of lower bound limits for characters in input fields. So, you will learn how to write a short script to handle this, and as a consequence, the input field will also be reset. This means an empty string is assigned to the text variable.

How to do it...

  1. To begin, we need to create our input field, right-click on the Hierarchy panel, then go to UI | Input Field, and rename it myInputField. Finally, place it wherever you want.

  2. As we discussed in the introduction to this recipe, we are going to create a password input field. We should also select Password in the drop-down menu of...