how to disable @afk command on gvg maps?

[Petey Pablo]

@afk command:

/*==========================================
* @afk by [cr0wmaster]
* Features: 1z required to use. Venders are forbidden to use this command.
*------------------------------------------*/
int atcommand_afk(const int fd, struct map_session_data* sd, const char* command, const char* message)
{
   nullpo_retr(-1, sd);
   {
    if( map[sd->bl.m].flag.autotrade == battle_config.autotrade_mapflag )
    {
	    sd->state.autotrade = 1;
	    if( battle_config.at_timeout )
	    {
		    int timeout = atoi(message);
		    status_change_start(&sd->bl, SC_AUTOTRADE, 10000, 0, 0, 0, 0, ((timeout > 0) ? min(timeout,battle_config.at_timeout) : battle_config.at_timeout) * 60000, 0);
	    }		    clif_authfail_fd(fd, 15);
    } else
	    clif_displaymessage(fd, "afk is not allowed on this map.");
   }
 //  else
   //    clif_displaymessage(fd, msg_txt(549)); // You should be vending to use @Autotrade.
   return 0;
}

{ "afk",			    1,99,    atcommand_afk },

[Lemongrass]

change:

if( map[sd->bl.m].flag.autotrade == battle_config.autotrade_mapflag )

to:

if( map[sd->bl.m].flag.autotrade == battle_config.autotrade_mapflag || map[sd->bl.m].flag.gvg_castle || map[sd->bl.m].flag.gvg_noparty )