I want to implement some features, but I can't think of a way.
1. How to prevent duplicate logins of players
(One for app player, one for smartphone)
If I have logged in to one, is there any way to prevent the other from logging in?
2. How to get the player's total playtime
-The timer should only work when you connect to the game.
When the game ends, the time does not pass,
is there a way to get the total time played?
When implemented as a client, there may be problems such as speed hack.
Can you implement this in cloud code?
3. Player's login status (how to know whether online or offline)
4. How to know how many players are currently using the game
(Total number of players currently)
thanks in advance