You might try this GS article - it goes into a lot more detail about real-world use.<p><a href="http:&#x2F;&#x2F;www.gamasutra.com&#x2F;blogs&#x2F;ChrisSimpson&#x2F;20140717&#x2F;221339&#x2F;Behavior_trees_for_AI_How_they_work.php" rel="nofollow">http:&#x2F;&#x2F;www.gamasutra.com&#x2F;blogs&#x2F;ChrisSimpson&#x2F;20140717&#x2F;221339&#x2F;...</a>