Thank you for your encouragement, Ian.
Indeed, my graphics capabilities are limited, while your are great, I've seen.
From this point of view, for now, I also have the problem to bring together many graphic active objects on small displays.
The apps in the cellar... I should refine them. Above all, I should find the best way to align the SQLite db devices.
Given that in the meantime I had a good idea for a game which must be played online, I'm starting the first steps towards this.
It is precisely on this topic that I am in trouble; I asked for help, some members have tried to help me (and I have treated them badly, for a misunderstanding); but it is hard to help me in this: even the great master (guess who) gave me advices, but that much he can not do (now we have more information about its commitments: we saw his three adorable commitments
).
I would need the help of a real informatic engineer, who would help me decide whether to use the services of Google Play for online multiplayer games or continue with the server B4J and, in the first case, HOW!
But this is just the beginning; he should plan, outline, create diagrams of the whole architecture of the game.
In short, the aid request is excessive.
Anyway, I'll keep in consideration your kind offer, thank you.
With regard to: "Google Play's' subscription 'API', I do not understand it, because all I know is that you must obtain an account as a developer, the cost of $25 (annual or una tantum, I don't remember).
The words: 'hey, it's only a dollar, it will not break the bank and you'll get to see the extra features' are more or less the same that I had already prepared for my first app (the main difference is I had written € 2.99
)
Thanks again, Ian