public void StartGame()
{
music_source.Stop();
music_source.Play();
win = false;
lose = false;
waiting_to_start = false;
spawn_manager.CleanUpUnits();
spawn_manager.StartWaves();
spawn_manager.enabled = true;
button_start_game.gameObject.SetActive(false);
player.live = 100;
player.currentAmmo = player.maxAmmo;
death_hostages = 0;
text_amount_death_hostages.text = death_hostages.ToString();
hostages_die_before = death_hostages;
power_up.Reset_Kills();
}
