One of the key features of the Unity UI system is the ability to easily program how the UI elements receive interactions from the player via events. The Event System is a robust system that allows you to create and manage events.
In this chapter, we will discuss the following topics:
- How to access UI elements and their properties via code
- What the Event System is and how to work with it
- How to customize input axes with the Input Manager
- What an Input Module is and which ones are provided by Unity
- How to use the Event Trigger component to receive events on UI objects
- What Raycasters are and what types of Raycasters are provided by Unity
- How to show and hide pop-up panels using keyboard inputs
- How to pause the game
- How to create a drag and drop inventory system
