The old tell_player() function has been removed, and a better notifications system is in place. Now, every time we need to notify a player of something really important, we can use:

user->add_notification(type, message);

and it will be shown after the pending actions and current heart_beat has finished (this is useful to avoid situations like entering a new room, something happening and the message would be shown before seeing what is inside said room).

The player will be able to show their last notifications:

> notifications

╒════════════════╡ Past notifications ╞═════════════════╕
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│ 19:18:55 - You are connected! Welcome to Hexagon. │
│ │
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