[Chrillzen]

I guess you're using Y_INI.

First off..

This checks if you're an admin or RCON admin.

pawn Code:

if(PlayerInfo[playerid][pAdmin] < 1338 && !IsPlayerAdmin(playerid)) return SendClientMessage(playerid, COLOR_RED, "You're not a admin level 1338 or logged in as a rcon adminstrator.");

Usage of sscanf, this basically means what level you can set them to. 0 - 1338

pawn Code:

if (sscanf(params, "ui", pID, value)) return SendClientMessage(playerid, COLOR_GREY, "Anvдndning: /makeadmin [playerid/partofname] [level 1-1338].");
    else if (value < 0 || value > 1338) return SendClientMessage(playerid, COLOR_RED, "Invalid admin level.");

Check if the target id is online.

pawn Code:

if(!IsPlayerConnected(pID)) return SendClientMessage(playerid, COLOR_RED,"That player is not online.");

This will set the Adminlevel to whatever you typed in.

pawn Code:

PlayerInfo[pID][pAdmin] = value;

You'll need this aswell to store the data. Also you'll need to save the data whenever a player logs out and logs in.

pawn Code:

enum pInfo
{
    pAdmin
}

Also you'll need this ontop of your command.

pawn Code:

new pID, value;