new PlayerText:KillsLevel[MAX_PLAYERS];
 
public OnGameModeExit()
{
    for(new i = GetMaxPlayers() - 1; i != -1; i--)
    {
        if(!IsPlayerConnected(i)) continue;
        PlayerTextDrawDestroy(i, KillsLevel[i]);
    }
    return 1;
}
 
public OnPlayerConnect(playerid)
{
    KillsLevel[playerid] = CreatePlayerTextDraw(playerid, 499.0, 101.0, "Kills: 0/0\nLevel: 0");
    PlayerTextDrawFont(playerid, KillsLevel[playerid], 1);
    PlayerTextDrawLetterSize(playerid, KillsLevel[playerid], 0.34, 1.5);
    PlayerTextDrawSetOutline(playerid, KillsLevel[playerid], 1);
    PlayerTextDrawColor(playerid, KillsLevel[playerid], 0xFDE39DFF);
    PlayerTextDrawAlignment(playerid, KillsLevel[playerid], 1);
    PlayerTextDrawShow(playerid, KillsLevel[playerid]);
    UpdateKillsLevel(playerid);
    return 1;
}
 
public OnPlayerDisconnect(playerid, reason)
{
    #pragma unused reason
    PlayerTextDrawDestroy(playerid, KillsLevel[playerid]);
    return 1;
}
 
public OnPlayerDeath(playerid, killerid, reason)
{
    #pragma unused reason
    SetPlayerScore (killerid, GetPlayerScore (killerid) + 1);
    UpdateKillsLevel(playerid);
    return 1;
}
 
UpdateKillsLevel(playerid)
{
    new kills = GetPlayerScore(playerid);   // <<<<<
    if(kills % 50 == 0) SetPlayerScore(playerid,GetPlayerScore(playerid) + 1); // <<<<<<
    new level = GetPlayerScore(playerid), string[32];
    format(string, sizeof(string), "Level: %d\nKills: %d/%d", level, kills, level * 50);
    PlayerTextDrawSetString(playerid, KillsLevel[playerid], string); // <<<<<<<
}

public OnPlayerDeath(playerid, killerid, reason)
{
    #pragma unused reason
    SetPlayerScore (killerid, GetPlayerScore (killerid) + 1);
    UpdateKillsLevel(killerid);
    return 1;
}

UpdateKillsLevel(playerid)
{
    new kills = GetPlayerScore(playerid); 
    if(kills % 50 == 0) SetPlayerScore(playerid,GetPlayerScore(playerid) + 1); 
    new level = GetPlayerScore(playerid), string[32];
    format(string, sizeof(string), "Level: %d\nKills: %d/%d", level, kills, level * 50);
    PlayerTextDrawSetString(playerid, KillsLevel[playerid], string); 
    PlayerTextDrawShow( playerid , KillsLevel[playerid] );
}