stop instantiating prefab if hit limit but continue if prefabs get destroyed - unity3d

Question

i have a wave system set up and it instantiates a specific amount of enemy prefabs, however say there are supposed to be 100 enemies in total that have to be instantiated on said wave, thats a lot for the player to handle so i want to set a limit (doing it like in COD: Zombies) for how many prefabs are allowed to be active at a time.
IEnumerator SpawnWave (Wave _wave)
{
for (int i = 0; i < _wave.count; i++)
{
if (curZombiesSpawned < maxZombiesSpawned)
{
SpawnEnemy();
Debug.Log("spawnenemy");
}
yield return new WaitForSeconds( 1f/_wave.rate );
}
state = SpawnState.WAITING;
yield break;
}
void SpawnEnemy()
{
Transform _sp = spawnPoints[Random.Range(0, spawnPoints.Length)];
PhotonNetwork.InstantiateRoomObject (enemyObject.name, _sp.position, _sp.rotation);
curZombiesSpawned++;
}
before i instantiate the enemy i want to check if the currently spawned enemies is less than the max amount of enemies spawned at a time.
but lets say on x wave there are supposed to be 50 enemies, but the limit is 24, i only want 24 to spawn, and when i kill x amount of enemies, i want to spawn more enemies till it reaches the limit again. doing that until all 50 are dead, then the next wave starts again
current problem: if the enemy amount on x wave is greater than the limit, it spawns x amount of enemies (spawn the amount of what the limit is set to) but when i kill some (thus destroy the object) they dont keep spawning again.

Answer 1

You can try something like this:
IEnumerator SpawnWave (Wave _wave)
{
int spawnedEnemiesCount = 0;
while(spawnedEnemiesCount < _wave.count)
{
while (curZombiesSpawned < maxZombiesSpawned && spawnedEnemiesCount < _wave.count)
{
SpawnEnemy();
spawnedEnemiesCount++;
Debug.Log("spawnenemy");
}
yield return new WaitForSeconds( 1f/_wave.rate );
}
}