[DiMeNsIoN©]

pawn Код:

new PlayerLogged[MAX_PLAYERS];

public OnPlayerConnect(playerid)
{
    PlayerLogged[playerid] = 0;
    return 1;
}

public OnPlayerLogin(playerid, password[]) // this is what ever you login function is.
{
    if(IsPlayerConnected(playerid) && PlayerLogged[playerid] == 0)
    {
        //Rest of your command herre....
    }
    return 1;
}