// Update is called once per frame
void Update()
{
if (player == null)
{
return;
}
currentUpgradeTime += Time.deltaTime;
currentSpawnTime += Time.deltaTime;
if (currentUpgradeTime > actualUpgradeTime)
{
if (!spawnedUpgrade)
{
int randomNumber = Random.Range(0, spawnPoints.Length - 1);
GameObject spawnLocation = spawnPoints[randomNumber];
GameObject upgrade = Instantiate(upgradePrefab) as GameObject;
Upgrade upgradeScript = upgrade.GetComponent <Upgrade>();
upgradeScript.gun = gun;
upgrade.transform.position =
spawnLocation.transform.position;
spawnedUpgrade = true;
SoundManager.Instance.PlayOneShot(SoundManager.Instance.powerUpAppear);
}
}
if (currentSpawnTime > generatedSpawnTime)
{
currentSpawnTime = 0;
generatedSpawnTime = Random.Range(minSpawnTime, maxSpawnTime);
if (aliensPerSpawn > 0 && aliensOnScreen < totalAliens)
{
List <int> previousSpawnLocations = new List <int>();
if (aliensPerSpawn > spawnPoints.Length)
{
aliensPerSpawn = spawnPoints.Length - 1;
}
aliensPerSpawn = (aliensPerSpawn > totalAliens) ? aliensPerSpawn - totalAliens : aliensPerSpawn;
for (int i = 0; i < aliensPerSpawn; i++)
{
if (aliensOnScreen < maxAliensOnScreen)
{
aliensOnScreen += 1;
int spawnPoint = -1;
while (spawnPoint == -1)
{
int randomNumber = Random.Range(0, spawnPoints.Length - 1);
if (!previousSpawnLocations.Contains(randomNumber))
{
previousSpawnLocations.Add(randomNumber);
spawnPoint = randomNumber;
}
}
GameObject spawnLocation = spawnPoints[spawnPoint];
GameObject newAlien = Instantiate(alien) as GameObject;
newAlien.transform.position = spawnLocation.transform.position;
Eagle alienScript = newAlien.GetComponent <Eagle>();
alienScript.target = player.transform;
Vector3 targetRotation = new Vector3(player.transform.position.x, newAlien.transform.position.y, player.transform.position.z);
newAlien.transform.LookAt(targetRotation);
alienScript.OnDestroy.AddListener(AlienDestroyed);
alienScript.GetDeathParticles().SetDeathFloor(deathFloor);
}
}
}
}
}