Making a spawner adjust its spawnrate over time

Questions & Answers
1

I’m trying to make a spawner spawn enemies faster over time. However, I’m having a little difficulty figuring out a repeating method that would speed up at a controlled rate. This was one of my attempts.

    public GameObject prefab; //enemy that will spawn
    
    public float startSpawn; //when the spawner will activate

    //spawner management variables
    public float spawnRate;
    public float defaultRate;
    public float timeReduction;
    public float minRate;

    //range for where enemy will spawn
    public float minHeight;
    public float maxHeight;

    //spawns in enemy while reducing the time for the next enemy to spawn
    public void Spawn()
    {
        GameObject enemy = Instantiate(prefab, transform.position, Quaternion.identity);

        enemy.transform.position += Vector3.up * Random.Range(minHeight, maxHeight);

        if (spawnRate > 1)
        {
            spawnRate -= timeReduction;
        }              
    }

    //when player hits start button, game manager enables spawner
    public void OnEnable()
    {
        InvokeRepeating(nameof(Spawn), startSpawn, spawnRate);
    }

    //spawner is disabled when player dies
    private void OnDisable()
    {
        spawnRate = defaultRate;

        CancelInvoke(nameof(Spawn));
    }
}

I’ve tried using IEnumerator/WaitForSeconds, but it ended up with enemies spawning uncontrollably because it wouldn’t pause my spawn method. I’m still every new to C# and unity, so I’m not sure where to go from here. Any advice would be great. Thank you!

2

Hello.

There are different ways to get it. I would use an Ienumerator, with somethign like this:

Start or somewhere()
}
StartCoroutine (SpawnControl);
}

Ienumerator SpawnControl()
{
  while (IWantToSpawn==true)
  {
  SpawnEnemies();
  yield return new Waitforseconds (SpawnDelay);
  }
}

void SpawnEnemies()
{
Spawn stuff
}

So you only need to control the bool IWantToSpawn and the float SpawnDelay

And call the corutine SpawnControl again if you stopped spawning.

Bye!