We dissect a provided “Waypoint” script that enables non-player characters (NPCs) to navigate around obstacles, which is an essential part of effective enemy AI.

We create a controller script for our patrol bot, setting up the framework to move the bot automatically in a patrol pattern utilizing waypoints. We also set up the state machine for the bot and tie in relevant animations.

We finish implementing the patrol bot's functionality, adding the ability to fire at the player once it's in range.

Here we tell the patrol bot to seek out the player and run towards him. We also continue to work on some waypoint functions that were referred to in earlier chapters.

Here we address some issues with pathfinding and waypoint implementation.

Here we go over the features we've just implemented and smooth over the rough edges. Topics like properly firing animations and fine-tuning bot behavior are discussed.