void Update()
{
// Decrease powerup cooldown if waiting
if (missileCooldown > 0)
{
missileCooldown -= Time.deltaTime;
}
if (chaffCooldown > 0)
{
chaffCooldown -= Time.deltaTime;
}
if (minesCooldown > 0)
{
minesCooldown -= Time.deltaTime;
}
if (pinwheelCooldown > 0)
{
pinwheelCooldown -= Time.deltaTime;
}
}