Chapter 2. Using Gizmos in the Scene View

When you are working on a video game and you need to debug features, it's very helpful to have a visual representation of certain structures you are using in the code. For example, imagine that you have a set of waypoints to model the movement of a Non Playable Character (NPC) in your video game. If it is possible for you to see the waypoints, it will be easier for you to make tweaks and readjust the movement paths.

Thankfully, in Unity there's a class called Gizmos that allow us to add visual aids to the Scene View in an easy way.

Here, you will learn about the Gizmos class and how to use this to create a visual grid that will help level designers position the level piece prefabs with more control in the level.

In this chapter we will cover the following topics:

• The OnDrawGizmos and OnDrawGizmosSelected methods
• The DrawGizmo attribute
• The Gizmos class API