EnemyTarget.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace SA {
	public class EnemyTarget : MonoBehaviour
	{
	     public int index;
	     public List<Transform> targets = new List<Transform>();
	     public List<HumanBodyBones> h_bones = new List<HumanBodyBones>();

	     Animator anim;

	     void Start()
	     {
	        anim = GetComponent<Animator>();
	        if (anim.isHuman == false)
	           return;

	        for (int i = 0; i < h_bones.Count; i++)
	        {
	            targets.Add(anim.GetBoneTransform(h_bones[i]));
	        }
	     }

	     public Transform GetTarget(bool negative = false)
	     {
	        if (targets.Count == 0)
	           return transform;

	        int targetIndex = index;

	        if (negative == false)
	        {
		        if(index < targets.Count - 1)
		        {
		            index++;
		        }
		        else
		        {
		           index = 0;
		           targetIndex = 0;
		        }
	        }
	        else
	        {
	           if(index < 0)
	           {
	              index = targets.Count - 1;
				  targetIndex = targets.Count - 1;
	           }
	           else
	           {
	              index--;
	           }
	        }

	        return targets[index];
	     }
	}
}