How do i add a enemy multiplier to my wave spawner?

Questions & Answers
1

I’m a beginner at coding so i usually watch a lot of youtube tutorials for the stuff in my game, i watched a video by Brackeys on a wave spawner I’ve been trying to figure out how to add a multiplier so that every time the waves loop, the enemies increase. I also want to know how i could add different enemies into the waves.

public class Spawner : MonoBehaviour 
{
    public enum SpawnState { SPAWNING, WAITING, COUNTING } 
    [System.Serializable]
    public class Wave
    {
        public string name;
        public Transform enemy;
        public int count;
        public float rate;
    }
    public Wave[] waves;
    private int nextWave = 0;

    public Transform[] spawnPoints;

    public float timeBetweenWaves = 5f;
    private float waveCountdown;
    public int waveMultiplier = 2;

    private float searchCountdown = 1f;

    private SpawnState state = SpawnState.COUNTING;

    void Start()
    {
        Debug.LogError("No spawn points referrenced.");

        waveCountdown = timeBetweenWaves;
    }

    void Update()
    {
        if (state == SpawnState.WAITING)
        {
            // Check if enemies are still alive
            if (!EnemyIsAlive())
            {
                // Begin a new round
                WaveCompleted();
            }
            else
            {
                return;
            }
        }

        if (waveCountdown <= 0)
        {
            if (state != SpawnState.SPAWNING)
            {
                // Start spawning wave
                StartCoroutine(SpawnWave(waves[nextWave]));
            }
        }
        else
        {
            waveCountdown -= Time.deltaTime;
        }
    }
    void WaveCompleted()
    {
        Debug.Log("Wave Completed!");
        state = SpawnState.COUNTING;
        waveCountdown = timeBetweenWaves;

        if (nextWave + 1 > waves.Length - 1)
        {                
            nextWave = 0;                
            Debug.Log("All Waves Complete, LOOPING");
        }
        
        else
        {
            nextWave++;
        }
    }   
    bool EnemyIsAlive()
    {
        searchCountdown -= Time.deltaTime;
        if (searchCountdown <= 0f)
        {
            searchCountdown = 1f;
            if (GameObject.FindGameObjectWithTag("Enemy") == null)
            {
                return false;
            }
        }    
        return true;
    }

    IEnumerator SpawnWave(Wave _wave)
    {
        Debug.Log("Spawning Wave: " + _wave.name);
        state = SpawnState.SPAWNING;

        // Spawn
        for (int i = 0; i < _wave.count; i++)
        {
            SpawnEnemy(_wave.enemy);
            yield return new WaitForSeconds(1f / _wave.rate);
        }    
        state = SpawnState.WAITING;

        yield break;
    }

    void SpawnEnemy(Transform _enemy)
    {
        
        Debug.Log("Spawning Enemy: " + _enemy.name);
        Transform _sp = spawnPoints[Random.Range(0, spawnPoints.Length)];
        Instantiate(_enemy,_sp.position, _sp.rotation);    
    } 
}
2

Hello there.

You just need to execute SpawnEnemies() multiple times each wave, or make the SpawnEnemies() to Instantiate multiple enemies each time is called.

something like:

void SpawnEnemy(Transform _enemy, int NumerOfEnemiesThisWave)
     {
         for (int i = 0; i < NumerOfEnemiesThisWave; i++)
         {
         Debug.Log("Spawning Enemy: " + _enemy.name);
         Transform _sp = spawnPoints[Random.Range(0, spawnPoints.Length)];
         Instantiate(_enemy,_sp.position, _sp.rotation);    
         }
     }

And every time you want to spawn a new wave, do something like:

SpawnEnemy(_wave.enemy, 5);

BEst is to learn about how to use the for loop, watch more tutorials (its the ebst way for learning) about "for"and will get the mechaninc. its very simple.

Good luck!