sked/Assets/Script/Character/BombUse.cs

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

public class BombUse : MonoBehaviour
{
    public Character character;
    public Inventory inven;

    [Space(10)]
    public Bomb prefabBomb;
    Bundle<Bomb> bundle = new Bundle<Bomb>();
    void Update()
    {
        if (Input.GetKeyDown(KeyCode.E) && inven.ItemUse("Bomb", 1))
        {
            GameObject obj = character.map.ObjectCreate(prefabBomb.gameObject, null, Vector3.one, transform.position);

            Bomb bomb = bundle.Get(obj.name);
            if(bomb == null)
            {
                bomb = obj.GetComponent<Bomb>();
                bundle.Add(bomb.name, bomb);
            }

            bomb.OnInitialized(character, LayerMask.NameToLayer($"HitAll"));
        }
    }
}