Displaying a different sprite depending on which angle a character is viewed from

All of my code is properly working, but when circling my character, the sprite switches 8 times instead of 4 and I can not think of a way to correct this by just adjusting the greater and less thans in my nested if statements.

 using UnityEngine;
 using System.Collections;
 
 public class SpriteController : MonoBehaviour {
 
     int x = 1;
     int caseSwitch = 1;
     GameObject fagboy_left;
     GameObject fagboy_backleft;
     GameObject fagboy_right;
     GameObject fagboy_backright;
     GameObject Player;
     float rise;
     float run;
     float degreePercent;
 
     // Use this for initialization
     void Start ()
     {
         fagboy_left = GameObject.Find("fagboy_left");
         fagboy_backleft = GameObject.Find("fagboy_backleft");
         fagboy_right = GameObject.Find("fagboy_right");
         fagboy_backright = GameObject.Find("fagboy_backright");
         Player = GameObject.Find("FirstPersonCharacter");
     }
     
     // Update is called once per frame
     void Update ()
     {
 
         rise = Player.transform.position.z - transform.position.z;
         run = Player.transform.position.x - transform.position.x;
 
         if (run==0)
         {
             if (run>0)
             {
                 caseSwitch = 1;
             }
             else
             {
                 caseSwitch = 3;
             }
         }
 
         degreePercent = (rise / run) * 100;
 
         if (degreePercent<50 && degreePercent>0)
         {
             caseSwitch = 2;
         }
         else
         {
             if (degreePercent<0 && degreePercent>-50)
             {
                 caseSwitch = 1;
             }
             else
             {
                 if (degreePercent<-50)
                 {
                     caseSwitch = 3;
                 }
                 else
                 {
                     caseSwitch = 4;
                 }
             }
         }
 
         switch (caseSwitch)
         {
             case 1:
                 fagboy_left.SetActive(true);
                 fagboy_backleft.SetActive(false);
                 fagboy_right.SetActive(false);
                 fagboy_backright.SetActive(false);
                 break;
             case 2:
                 fagboy_left.SetActive(false);
                 fagboy_backleft.SetActive(true);
                 fagboy_right.SetActive(false);
                 fagboy_backright.SetActive(false);
                 break;
             case 3:
                 fagboy_left.SetActive(false);
                 fagboy_backleft.SetActive(false);
                 fagboy_right.SetActive(true);
                 fagboy_backright.SetActive(false);
                 break;
             case 4:
                 fagboy_left.SetActive(false);
                 fagboy_backleft.SetActive(false);
                 fagboy_right.SetActive(false);
                 fagboy_backright.SetActive(true);
                 break;
         }
     }
 }