forward AreaCheck();

public OnGameModeInit()
{
    SetTimer("AreaCheck", 2000, true);
    return 1;
}

public AreaCheck()
{
    for(new i=0; i<GetMaxPlayers(); i++)
    {
        if(IsPlayerConnected(i))
        {
            if(IsPlayerInRangeOfPoint(i, range, x, y, z)) //replace "range, x, y, z" with your object positions and the wished range
            {
                MoveObject(objectid, newx, newy, newz); //replace objectid, newx, newy, newz with your objectid and the new positions
            }
        }
    }
    return 1;
}