This sample demonstrates chasing and evading behaviors by using three actors—a cat, a mouse, and a tank. The tank and the mouse are controlled by AI, and the cat is controlled by the player. The tank chases the cat, and the mouse runs from the cat. The tank and the mouse wander around the screen when the cat is not nearby. The "turn toward" functionality from the aiming sample makes it very simple to create these behaviors: chase, evade, and wander.