ActionTowerDefense/ActionTowerDefense/Assets/Scripts/PortalsController.cs

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

public class PortalsController : MonoBehaviour
{
    public PortalsController targetPortal;
    public List<Rigidbody> rbs = new List<Rigidbody>();
    public float TransmitCD;

    private void OnTriggerEnter(Collider other)
    {
        BeSearchTrigger beSearchTrigger = other.GetComponent<BeSearchTrigger>();
        if (beSearchTrigger != null)
        {
            Rigidbody rb = beSearchTrigger.GetComponentInParent<Rigidbody>();

            AddPortal(rb);

            return;
        }
        Bullet bullet = other.GetComponent<Bullet>();
        if(bullet != null)
        {
            Rigidbody rb = bullet.GetComponentInParent<Rigidbody>();

            AddPortal(rb);
        }

    }
    
    public void AddPortal(Rigidbody rb)
    {
        if (!targetPortal.rbs.Exists(t => t == rb))
        {
            if (!rbs.Exists(t => t == rb))
            {
                rbs.Add(rb);

                Vector3 targetPos = targetPortal.transform.position;
                targetPos.y += rb.transform.position.y - transform.position.y;
                rb.transform.position = targetPos;
            }
        }
    }
    
}