Disable levitate effects in certain zones?

[Magoth78]

As requested, zone can be levitate restricted.


Code changes:

1/ In zone.h,
after

 bool	CanDoCombat() const { return(can_combat); }

add

bool    CanLevitate() const {return(can_levitate); }

after

bool	can_combat;

add

bool    can_levitate;

In the file: zonedb.h,
replace

bool GetZoneCFG(int32 zoneid, NewZone_Struct *data, bool &can_bind, bool &can_combat);

by

bool GetZoneCFG(int32 zoneid, NewZone_Struct *data, bool &can_bind, bool &can_combat, bool &can_levitate);

In the file zone.cpp and in the function Zone::LoadZoneCFG,
replace

if(!database.GetZoneCFG(database.GetZoneID(filename), &newzone_data, can_bind, can_combat)) {

by

if(!database.GetZoneCFG(database.GetZoneID(filename), &newzone_data, can_bind, can_combat, can_levitate)) {

In the file zonedb.cpp,
replace

bool ZoneDatabase::GetZoneCFG(int32 zoneid, NewZone_Struct *zone_data, bool &can_bind, bool &can_combat) {
	char errbuf[MYSQL_ERRMSG_SIZE];
	char *query = 0;
	MYSQL_RES *result;
	MYSQL_ROW row;
	int i=0;
	bool good = false;
	if (RunQuery(query, MakeAnyLenString(&query, "SELECT ztype,"
		"fog_red,fog_green,fog_blue,fog_minclip,fog_maxclip,"
		"fog_red2,fog_green2,fog_blue2,fog_minclip2,fog_maxclip2,"
		"fog_red3,fog_green3,fog_blue3,fog_minclip3,fog_maxclip3,"
		"fog_red4,fog_green4,fog_blue4,fog_minclip4,fog_maxclip4,"
		"sky,zone_exp_multiplier,safe_x,safe_y,safe_z,underworld,"
		"minclip,maxclip,time_type,canbind,cancombat"
		" from zone where zoneidnumber=%i",zoneid), errbuf, &result)) {
		safe_delete_array(query);
		while((row = mysql_fetch_row(result))) {
			int r = 0;
			memset(zone_data,0,sizeof(NewZone_Struct));
			zone_data->ztype=atoi(row[r++]);
			
			for(i=0;i<4;i++){
				zone_data->fog_red[i]=atoi(row[r++]);
				zone_data->fog_green[i]=atoi(row[r++]);
				zone_data->fog_blue[i]=atoi(row[r++]);
				zone_data->fog_minclip[i]=atof(row[r++]);
				zone_data->fog_maxclip[i]=atof(row[r++]);
			}
			
			zone_data->sky=atoi(row[r++]);
			zone_data->zone_exp_multiplier=atof(row[r++]);
			zone_data->safe_x=atof(row[r++]);
			zone_data->safe_y=atof(row[r++]);
			zone_data->safe_z=atof(row[r++]);
			zone_data->underworld=atof(row[r++]);
			zone_data->minclip=atof(row[r++]);
			zone_data->maxclip=atof(row[r++]);
			
			zone_data->time_type=atoi(row[r++]);
//not in the DB yet:
			zone_data->gravity = 0.4;
			
			can_bind = atoi(row[r++])==0?false:true;
			can_combat = atoi(row[r++])==0?false:true;
			
			good = true;
		}
		mysql_free_result(result);
	}
	else
		LogFile->write(EQEMuLog::Error, "Error in GetZoneCFG query %s: %s", query, errbuf);
	safe_delete_array(query);
	
	zone_data->zone_id = zoneid;
	
	return(good);
}

by

bool ZoneDatabase::GetZoneCFG(int32 zoneid, NewZone_Struct *zone_data, bool &can_bind, bool &can_combat, bool &can_levitate) {
	char errbuf[MYSQL_ERRMSG_SIZE];
	char *query = 0;
	MYSQL_RES *result;
	MYSQL_ROW row;
	int i=0;
	bool good = false;
	if (RunQuery(query, MakeAnyLenString(&query, "SELECT ztype,"
		"fog_red,fog_green,fog_blue,fog_minclip,fog_maxclip,"
		"fog_red2,fog_green2,fog_blue2,fog_minclip2,fog_maxclip2,"
		"fog_red3,fog_green3,fog_blue3,fog_minclip3,fog_maxclip3,"
		"fog_red4,fog_green4,fog_blue4,fog_minclip4,fog_maxclip4,"
		"sky,zone_exp_multiplier,safe_x,safe_y,safe_z,underworld,"
		"minclip,maxclip,time_type,canbind,cancombat,canlevitate"
		" from zone where zoneidnumber=%i",zoneid), errbuf, &result)) {
		safe_delete_array(query);
		while((row = mysql_fetch_row(result))) {
			int r = 0;
			memset(zone_data,0,sizeof(NewZone_Struct));
			zone_data->ztype=atoi(row[r++]);
			
			for(i=0;i<4;i++){
				zone_data->fog_red[i]=atoi(row[r++]);
				zone_data->fog_green[i]=atoi(row[r++]);
				zone_data->fog_blue[i]=atoi(row[r++]);
				zone_data->fog_minclip[i]=atof(row[r++]);
				zone_data->fog_maxclip[i]=atof(row[r++]);
			}
			
			zone_data->sky=atoi(row[r++]);
			zone_data->zone_exp_multiplier=atof(row[r++]);
			zone_data->safe_x=atof(row[r++]);
			zone_data->safe_y=atof(row[r++]);
			zone_data->safe_z=atof(row[r++]);
			zone_data->underworld=atof(row[r++]);
			zone_data->minclip=atof(row[r++]);
			zone_data->maxclip=atof(row[r++]);
			
			zone_data->time_type=atoi(row[r++]);
//not in the DB yet:
			zone_data->gravity = 0.4;
			
			can_bind = atoi(row[r++])==0?false:true;
			can_combat = atoi(row[r++])==0?false:true;
            can_levitate = atoi(row[r++])==0?false:true;
			
			good = true;
		}
		mysql_free_result(result);
	}
	else
		LogFile->write(EQEMuLog::Error, "Error in GetZoneCFG query %s: %s", query, errbuf);
	safe_delete_array(query);
	
	zone_data->zone_id = zoneid;
	
	return(good);
}

In the file spells.cpp, in the function Mob::SpellFinished(int16 spell_id, Mob *spell_target, int16 slot, int16 mana_used),
find

if(!IsValidSpell(spell_id))
		return false;

and, add after

if( IsEffectInSpell(spell_id, SE_Levitate) && !zone->CanLevitate() )
    {
        if( IsClient() )
        {
            if(!CastToClient()->GetGM())
            {
                Message(13, "You can't levitate in this zone.");
			    return false;
            }
        }
    }

In the file client_packet.cpp, function Complete_Connect(),
replace

case SE_Levitate:
	{
                          SendAppearancePacket(AT_Levitate, 2);
                          break;
        }

by

case SE_Levitate:
	{
                        if( !zone->CanLevitate() )
                        {
                            if(!GetGM())
                            {
                                SendAppearancePacket(AT_Levitate, 0);
                                BuffFadeByEffect(SE_Levitate);
                                Message(13, "You can't levitate in this zone.");
                            }
                        }else{
                            SendAppearancePacket(AT_Levitate, 2);
                        }
			break;
	}

SQL changes:

alter table `zone` add column `canlevitate` tinyint (4) DEFAULT '1' NOT NULL  after `cancombat`

I've tested it with the zone: The Hole.
It seems to work correctly.

Mag.