React AI doesn't come equipped with a patrol script, so we provided one. We'll start with this behavior tree script and look at how it works and how to use it. Here are the steps to reproduce it:
Create a patrol script.
Create a patrol AI.
Set up the NPC patrol.
To start with, we've provided a script for you to use. In it, I started with the last script for pathfinding, and then I extended it to use a similar configuration to the patrol path in Quick Path's patrol script. Here are a couple of key points about this script:
It is based on the
FollowThePlayerscript from the previous chapter.You can find the code in the book's contents at
\Scripts\React AI\Patrol.cs.It stores a public array of
Vector3, so the Inspector UI can allow designers to set the waypoints.Instead of the target being a player, it is set to the next waypoint in the list. Once we are close enough, it selects the next waypoint. Close Enough is the float field that allows the inspector to find it.
If there are no waypoints...
