Unity provides Navigation Meshes and Artificial Intelligence (AI) Agents that can plan pathways and move objects along those calculated paths. Pathfinding is a classic AI task, and Unity has provided game developers with fast and efficient Pathfinding components that work out of the box.
Having objects that can automatically plot and follow paths from their current location to a desired destination point (or a moving object) provides the components to many different kinds of interactive game characters and mechanics. For example, we can create point-and-click games by clicking on a location or object, towards which we wish one or more characters to travel. Or, we can have enemies that "wake up" when our player's character is nearby, and move towards (seek) our player, perhaps then going into combat or dialogue mode once they are within a short distance...
