furfury/Furcherro/Assets/Scripts/Player/TargetClosestEnemy.cs

using Ai;
using UnityEngine;

namespace Player
{
	public class TargetClosestEnemy : MonoBehaviour
	{

		[SerializeField] private GameObject _lock;
		private TargetingEnemy _enemy;
		private GameObject _oldLock;
		
		public Vector3 ClosestPosition()
		{
			var closest = Vector3.forward;
			var distance = float.MaxValue;
			TargetingEnemy localEnemy = null;
			foreach (var enemy in AiController.Instance.TargetingEnemies)
			{
				if (!enemy.IsTargetable)
					continue;
				var current = Vector3.Distance(enemy.transform.position, transform.position);
				if (distance > current)
				{
					distance = current;
					closest = enemy.transform.position;
					localEnemy = enemy;
				}
			}

			if (localEnemy != null && localEnemy != _enemy)
			{
				if (_oldLock != null)
					Destroy(_oldLock);

				_enemy = localEnemy;
				_oldLock = Instantiate(_lock, _enemy.transform);
				_enemy.Lock = _oldLock;
			}

			return closest;
		}
		
	}
}