Advanced Multiple Tagging instead of Unity's

AdvancedTag.cs

// Author : github.com/farukcan
// Usage : AdvancedTag.GetTagList("Player")

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

public class AdvancedTag : MonoBehaviour
{
    private static Dictionary<string, List<GameObject>> dictionary = new Dictionary<string, List<GameObject>>();
    public string[] tags;
    public static List<GameObject> GetTagList(string tag)
    {
        if (dictionary.ContainsKey(tag))
        {
            return dictionary[tag];
        }
        else
        {
            return dictionary[tag] = new List<GameObject>();
        }
    }

    private void OnEnable()
    {
        foreach(var tag in tags)
        {
            var list = GetTagList(tag);
            list.Add(gameObject);
        }
    }

    private void OnDisable()
    {
        foreach (var tag in tags)
        {
            var list = GetTagList(tag);
            list.Remove(gameObject);
        }
    }
}