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

Creating a drag-and-drop element


Often, UI elements require some kind of interaction with the player. This recipe, along with what we have done in the previous two recipes, will teach you how to create interactive panels. In particular, you will learn how to create two panels: one from which we can drag an element (such as a coin or an item) and one on which we can then place it. This is useful when we are developing a system wherein we need to drag objects from one place to another. For instance, it's common to find this system in a shop menu, where the player can decide what to buy and drag what he wants into his inventory. In order to do this, we will use the Event Trigger (Script) component and develop a script to handle the interactions.

How to do it...

  1. To begin, we can create a panel by right-clicking on the Hierarchy panel. Then click on UI | Panel and rename it to CoinPanel. We should also resize it in order to see the entire panel on the screen.

  2. Next, we need to create a script for...