Needs script trigger animation?

Hello,

I'm building a pet simulator based off of the Chao Garden from the Sonic games, and right now I'm working on scripting a needs system that will trigger an animation on the pet once the need is empty. This is what I have so far:

using UnityEngine; using System.Collections; using UnityEngine.UI;

public class ChaoNeeds : MonoBehaviour { public Animator anim; public Slider happinessSlider; public int maxHappiness; public int hapFallRate;

 public Slider sleepSlider;
 public int maxSleep;
 public int slpFallRate;

 public Slider hungerSlider;
 public int maxHunger;
 public int hgrFallRate;

 private float haplow;
 private float slplow;
 private float hgrlow;
 private bool run;

 void Start()
 {
     anim = GetComponent <Animator>();
     happinessSlider.maxValue = maxHappiness;
     happinessSlider.value = maxHappiness;

     sleepSlider.maxValue = maxSleep;
     sleepSlider.value = maxSleep;

     hungerSlider.maxValue = maxHunger;
     hungerSlider.value = maxHunger;
     run = false;
 }

 void Update()
 {
     //HAPPINESS CONTROLLER
     if(hungerSlider.value <= 0 && (sleepSlider.value <= 0))
     {
         happinessSlider.value -= Time.deltaTime / hapFallRate * 2;
     }

     else if(hungerSlider.value <= 5 || sleepSlider.value <= 5)
     {
         happinessSlider.value -= Time.deltaTime / hapFallRate * 2;
     }

     if(happinessSlider.value <= 0)
     {
         anim.Play("Crying");
     }

     //HUNGER CONTROLLER
     if (hungerSlider.value >= 0)
     {
         hungerSlider.value -= Time.deltaTime / hgrFallRate;
     }

     else if (hungerSlider.value <= 0)
     {
         hungerSlider.value = 0;
         anim.Play("Crying");
     }

     else if (hungerSlider.value >= maxHunger)
     {
         hungerSlider.value = maxHunger;
     }

     //SLEEP CONTROLLER
     if (sleepSlider.value >= 0)
     {
         sleepSlider.value -= Time.deltaTime / slpFallRate;
     }

     else if (sleepSlider.value <= 0)
     {
         sleepSlider.value = 0;
     }

     else if (sleepSlider.value >= maxSleep)
     {
         sleepSlider.value = maxSleep;
     }
 }

 void ChaoFoodSearch ()
 {
     //CHAO WILL BEGIN TO EAT FRUIT ONCE WITHIN IT'S RANGE
 }

}

The needs system is working and the pet needs are degrading as they should be. Where I've hit a wall is getting the animations to play once the need reaches a certain point. Part of the reason is because I'm not entirely sure how to set up my animator for something like this. This is the animator currently:

If anyone thinks they can be of assistance it would really help me out a lot.