Спавнящиеся обьекты наслаиваются друг на друга, как пофиксить?

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
public class EnemyGenerator : MonoBehaviour
{
    public GameObject[] Enemys;
    public GameObject Bonus;
    public float minDelay, maxDelay;
    public float minX;
    public float maxX;
    void Start()
    {
        StartCoroutine(Spawn());
    }
    private void Repeat()
    {
        StartCoroutine(Spawn());
    }
 
    void Update()
    {
 
        Vector2 min = Camera.main.ViewportToWorldPoint(new Vector2(0, 0)); // bottom-left corner
        Vector2 max = Camera.main.ViewportToWorldPoint(new Vector2(1, 1)); // top-right corner\
        maxX = max.x;
        minX = min.x;
    }
    IEnumerator Spawn()
    {
        yield return new WaitForSeconds(Random.Range(minDelay, maxDelay));
 
        Vector2 pos = new Vector2(Random.Range(minX, maxX), transform.position.y);
        GameObject e = Instantiate(Enemys[Random.Range(0, Enemys.Length)], pos, Quaternion.identity) as GameObject;
        int r = Random.Range(0, 100);
        Vector2 Bonuspos = new Vector2(Random.Range(minX, maxX), transform.position.y);
        if (r<= 25)
        {
            GameObject b = Instantiate(Bonus, Bonuspos, Quaternion.identity) as GameObject;
        }
        Repeat();
    }
}