public SquirrelTree() : base()
{
SelectorNode subroot = new SelectorNode("Subroot");
DecoratorNode subrootDecorator = new TickUntilPredatorNearbyNode(subroot);
SequenceNode hungerRoot = new SequenceNode("Hunger Subtree");
hungerRoot.AddChild(new FoodLowNode(0.6f));
hungerRoot.AddChild(new IsFoodNearbyNode());
hungerRoot.AddChild(new GoToTargetFoodNode(3.0f));
hungerRoot.AddChild(new EatFoodNode());
ControlNode root = new SelectorNode("Root");
subroot.AddChild(hungerRoot);
ActionNode wander = new WanderNode();
subroot.AddChild(wander);
ActionNode runFromAnimal = new RunFromAnimalNode();
DecoratorNode runFromAnimalDecorator = new TickUntilPredatorNotNearbyNode(runFromAnimal);
root.AddChild(runFromAnimalDecorator);
root.AddChild(subrootDecorator);
_root = root;
GameObject canvas = GameObject.Find("Canvas");
UIManager uiManager = canvas.GetComponent <UIManager>();
GameObject uiTree = uiManager.GetUITree(AnimalType.SQUIRREL);
SetUIPointers(uiTree);
}