[WooTFTW]

pawn Код:

stock SelectRandomPlayer()
{
     new random = Random(MAX_PLAYERS);
     if(IsPlayerConnected(random))
     {
           return random;
     }
     else
     {
           SelectRandomPlayer();
     }
}

Now you can use it for example like this:

pawn Код:

new randomplayer = SelectRandomPlayer();
SetPlayerHealth(randomplayer, 100);

You can make the code efficent tho.
Or you can use foreach include, for more efficent random player selecting.