public class User {

    private UUID uuid;
    private ConcurrentSet<Fireball> fireballs;
    
    public User(Player player){
        this.uuid = player.getUniqueId();
        this.fireballs = new ConcurrentSet<>();
        UserManager.createUser(this);
    }

    public UUID getUuid(){
        return this.uuid;
    }

    public ConcurrentSet<Fireball> getFireballs(){
        return fireballs;
    }
}