private void Update()
{
spawnRate = defaultSpawnRate + ((float)currentScore / 100000f);
asteroidMaxInstance = defaultAsteroidMaxInstance + ((int)currentScore / 5000);
if (spawnTime > 0 && asteroidCounter < asteroidMaxInstance)
{
spawnTime -= Time.deltaTime;
if (spawnTime <= 0)
{
int pos = Random.Range(0, spawnPointTotal);
asteroidCounter++;
try
{
asteroidManager.Spawn(pos);
}
catch
{
int type = Random.Range(0, asteroidPrefab.Length);
asteroidManager.Create(type, pos);
}
// reset timer
spawnTime = 1f / spawnRate;
}
}
else
{
spawnTime = 1f / spawnRate;
}
if (currentScore >= 5000)
{
if (ufoSpawnTime > 0 && ufoCounter < maxUFOInstance)
{
ufoSpawnTime -= Time.deltaTime;
if (ufoSpawnTime <= 0)
{
CreateUFO();
ufoSpawnTime = 20;
}
}
else
{
ufoSpawnTime = 20;
}
}
}