AlliedModders - [Solved] Improved the player ping Or set fake ping ?

I found this code on a mod and i want to understand what does this code do, because i don't understand it.
PHP Code:

		
			
new g_iOffset[33][2];

new g_iArgumentPing[33][3];

new g_iPingOverride[33] =

{

    -1, ...

}

public plugin_init() {

    register_plugin(PLUGIN, VERSION, AUTHOR)

    

    register_forward(FM_UpdateClientData, "Update_Client_Data");    

    set_task(2.0, "TaskCalculateArguments", 0, "", 0, "b", 0);

}



public Update_Client_Data(id)

{

    if( !(pev( id, pev_button ) & IN_SCORE ) && !( pev( id, pev_oldbuttons ) & IN_SCORE ) )

        return;

    

    static player, sending;

    sending = 0;

    

    for( player = 1; player <= g_iMaxClients; player++ )

    {

        if( !is_user_connected( player ) )

             continue;

        

        switch( sending )

        {

            case 0:

            {

                message_begin( MSG_ONE_UNRELIABLE, SVC_PINGS, _, id );

                write_byte( ( g_iOffset[ player ][ 0 ] * 64 ) + ( 1 + 2 * ( player - 1 ) ) );

                write_short( g_iArgumentPing[ player ][ 0 ] );

                sending++;

            }

            

            case 1:

            {

                write_byte( ( g_iOffset[ player ][ 1 ] * 128 ) + ( 2 + 4 * ( player - 1 ) ) );

                write_short( g_iArgumentPing[ player ][ 1 ] );

                sending++;

            }

            

            case 2:

            {

                write_byte( ( 4 + 8 * ( player - 1 ) ) );

                write_short( g_iArgumentPing[ player ][ 2 ] );

                write_byte( 0 );

                message_end( );

                sending = 0;

            }

        }

    }

    

    if (sending)

    {

        write_byte( 0 );

        message_end( );

    }

}



public TaskCalculateArguments()

{

    static player, ping;

    

    for( player = 1; player <= g_iMaxClients; player++ )

    {

        if( g_iPingOverride[ player ] < 0 )

        {

            ping = random_num(-4, 4) + 12;

        }

        else

        {

            ping = g_iPingOverride[ player ];

        }

        for( g_iOffset [ player ][ 0 ] = 0; g_iOffset[ player ][ 0 ] < 4; g_iOffset[ player ][ 0 ]++ )

        {

            if( ( ping - g_iOffset[ player ][ 0 ] ) % 4 == 0 )

            {

                g_iArgumentPing[ player ][ 0 ] = ( ping - g_iOffset[ player ][ 0 ] ) / 4;

                break;

            }

        }

        

        for (g_iOffset[player][1] = 0; g_iOffset[player][1] < 2; g_iOffset[player][1]++)

        {

            if( ( ping - g_iOffset[ player ][ 1 ] ) % 2 == 0 )

            {

                g_iArgumentPing[ player ][ 1 ] = ( ping - g_iOffset[ player ][ 1 ] ) / 2;

                break;

            }

        }

        g_iArgumentPing[ player ][ 2 ] = ping;

    }

}