void Update()
 {
     if (currentComfortValue != NPCData.GetComfortValue())
     {
         SetNPCImage();
         if (!Sound.muted)
         {
             if (NPCData.isComfortValPositive)
             {
                 System.Random r         = new System.Random();
                 int           randomInt = r.Next(1, 3); // range 1 - 2
                 npcAudioClip = Resources.Load <AudioClip>("Sounds/approving" + randomInt);
             }
             else
             {
                 npcAudioClip = Resources.Load <AudioClip>("Sounds/disapproving2");
             }
             npcAudioSource.clip = npcAudioClip;
             npcAudioSource.Play();
         }
     }
     currentComfortValue = NPCData.GetComfortValue();
 }
 void Start()
 {
     SetNPCImage();
     currentComfortValue = NPCData.GetComfortValue();
 }