[SEnergy]

pawn Код:

public OnPlayerConnect(playerid)
{
    TogglePlayerSpectating(playerid, true);
    ShowPlayerDialog(playerid, iLoginDialog, DIALOG_STYLE_PASSWORD, "Login", string[playerid], "Login", "Quit");
    return 1;
}

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    if(dialogid == iLoginDialog)
    {
        if(response)
        {
            TogglePlayerSpectating(playerid, false);
            return 1;
        }
        else
            ShowPlayerDialog(playerid, iLoginDialog, DIALOG_STYLE_PASSWORD, "Login", string[playerid], "Login", "Cancel");
    }
    return 1;
}

easy as that