CastleDefence/Assets/Scripts/SimpleEnemySpawner.cs

using UnityEngine;

public class SimpleEnemySpawner : MonoBehaviour
{
    [SerializeField] private EnemyController enemyToSpawn;
    [SerializeField] private Transform spawnPoint;
    [SerializeField] private float timeBetweenSpawns;
    [SerializeField] private int amountToSpawn;
    private float spawnCounter;
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {
        spawnCounter = timeBetweenSpawns;
    }

    // Update is called once per frame
    void Update()
    {
       spawnCounter -= Time.deltaTime;
       if(spawnCounter <= 0f && amountToSpawn > 0)
       {
            spawnCounter = timeBetweenSpawns;
            Instantiate(enemyToSpawn, spawnPoint.position, spawnPoint.rotation);
            amountToSpawn--;
       }
       
    }
}