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 a draggable panel


In same cases, UI elements require some kind of interaction with the player, and the next three recipes will teach you how to create interactive panels. In this recipe, you will learn how to make a panel draggable. For instance, the player will be able to move the panel all around the screen by dragging it. This is useful when we want to allow the player to organize his UI with his logic and order. In order to do this, we will use the Event Trigger (Script) component and develop a script to handle the interaction.

How to do it...

  1. To begin, we can create a panel by right-clicking on the Hierarchy panel and then on UI | Panel. We should also resize it so that we can see the entire panel on the screen.

  2. Now we need to create our script on the panel, so we click on Add Component | New Script, name it DraggablePanelScript, and then click on Create and Add.

  3. Double-click on the script to edit it. This time, we don't need to add the using UnityEngine.UI; statement at the beginning...