// Update is called once per frame
void Update()
{
// Get the index of the current wave, and check if it’s the last one.
int currentWave = gameManager.Wave;
if (currentWave < waves.Length)
{
// If so, calculate how much time passed since the last enemy spawn and whether it’s time to spawn an enemy.
//Here you consider two cases. If it’s the first enemy in the wave, you check whether timeInterval is bigger
//than timeBetweenWaves. Otherwise, you check whether timeInterval is bigger than this wave’s spawnInterval.
//In either case, you make sure you haven’t spawned all the enemies for this wave.
float timeInterval = Time.time - lastSpawnTime;
float spawnInterval = waves[currentWave].spawnInterval;
WaveDuration();
if (((enemiesSpawned == 0 && timeInterval > timeBetweenWaves) || timeInterval > spawnInterval) && enemiesSpawned < waves[currentWave].maxEnemies)
{
// If necessary, spawn an enemy by instantiating a copy of enemyPrefab. You also increase the enemiesSpawned count.
lastSpawnTime = Time.time;
GameObject newEnemy = (GameObject)
Instantiate(waves[currentWave].enemyPrefab);
newEnemy.GetComponent <MoveEnemy>().waypoints = waypoints;
enemiesSpawned++;
}
// You check the number of enemies on screen. If there are none and it was the last enemy in the wave you spawn the next wave
if (enemiesSpawned == waves[currentWave].maxEnemies && GameObject.FindGameObjectWithTag("Enemy") == null)
{
gameManager.Wave++;
enemiesSpawned = 0;
lastSpawnTime = Time.time;
}
}
else
{
gameOver.GameWon();
}
}