Implement spawning coins in my 2d game

Hello everyone! I am bothering about how to implement spawning coins in my 2d game. My game looks like this, the player is a ghost that is not moving, but spawning objects are moving toward him... Movement is something like this. You can go up a bit and down (there are three static positions) and on those three positions (Y pos) where are automatically spawning obstacles and there is some timeout between individual spawn. Then I made that, those timeouts are lowering a bit per some time, so difficulty is increasing. Now my projects work perfectly, but when I added coins, it almost works as it might work, but some of them spawn right into some obstacles, or they are colliding with them... I made it like this, I got a script that spawns patterns who are parents to spawn points of coins, then a script that is called SpawnPoints and that one finally spawns those coins on the spawnpoint position that I set manually in the scene. And that is wrong because the player must hit an obstacle to collect that one coin and get a point. So my question is how to spawn coins in the perfect position to avoid this bug... Here are a few photos and spawn scripts...

This is Spawn script that spawns patterns which spawn those coins... using System.Collections; using System.Collections.Generic; using UnityEngine;

 public class Spawner : MonoBehaviour
 {
     public GameObject[] obstaclePatterns;
     public GameObject[] coinPatterns;
     private float obsTimeBtwSpawn;
     private float coinTimeBtwSpawn;
     public float obsStartTimeBtwSpawn;
     public float coinStartTimeBtwSpawn;
     public float decreaseTime;
     public float minTime = 5f;
 
     private void Update()
     {
         if (obsTimeBtwSpawn <= 0f)
         {
             int rand = Random.Range(0, obstaclePatterns.Length);
             Instantiate(obstaclePatterns[rand], transform.position, Quaternion.identity);
             obsTimeBtwSpawn = obsStartTimeBtwSpawn;
             if (obsStartTimeBtwSpawn > minTime)
             {
                 obsStartTimeBtwSpawn -= decreaseTime;
             }
         }
         else
         {
             obsTimeBtwSpawn -= Time.deltaTime;
         }
 
         if (coinTimeBtwSpawn <= 0f)
         {
             int rand = Random.Range(0, coinPatterns.Length);
             Instantiate(coinPatterns[rand], transform.position, Quaternion.identity);
             coinTimeBtwSpawn = coinStartTimeBtwSpawn;
         }
         else
         {
             coinTimeBtwSpawn -= Time.deltaTime;
         }
         Debug.Log("Bug: " + coinTimeBtwSpawn);
     }
 }
 

And this is SpawnPoint script that spawns obstacles: using System.Collections; using System.Collections.Generic; using UnityEngine;

 public class SpawnPoint : MonoBehaviour
 {
     public GameObject obstacle;
 
     void Start()
     {
         Instantiate(obstacle, transform.position, Quaternion.identity);
     }
 }

And the last one spawns coins:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class CoinSpawnPoint : MonoBehaviour
 {
     public GameObject coin;
 
     void Start()
     {
         Instantiate(coin, transform.position, Quaternion.identity);
     }
 }

alt text

If you want to know more, just tell me. And sorry for my grammar, I am just 13 and I am not native speaker... And of course I am a beginner in this engine...