private static Zombie chooseZombie(Necromancer player, int zombieIndex) {
		
		Zombie[] zombies = player.getZombies();
		
		Zombie zombie;
		
		if (zombieIndex > -1 && zombieIndex < zombies.length && zombies[zombieIndex] != null) {
			zombie = zombies[zombieIndex];
		} else {
			zombie = zombies[0];
		}
		
		return zombie;
	}