Memory Slasher - May 30 Patch

http://hercules.ws/board/topic/928-memory-slasher-may-30-patch/
Signed-off-by: shennetsind <ind@henn.et>

28 files changed, 2460 insertions, 1013 deletions

diff --git a/src/map/atcommand.c b/src/map/atcommand.c
index 65da7aa24..796447633 100644
--- a/src/map/atcommand.c
+++ b/src/map/atcommand.c
@@ -3940,7 +3940,7 @@ ACMD(mapinfo) {
 			for (i = 0; i < map[m_id].npc_num;)
 			{
 				nd = map[m_id].npc[i];
-				switch(nd->ud.dir) {
+				switch(nd->dir) {
 					case 0:  strcpy(direction, msg_txt(1101)); break; // North
 					case 1:  strcpy(direction, msg_txt(1102)); break; // North West
 					case 2:  strcpy(direction, msg_txt(1103)); break; // West
diff --git a/src/map/battleground.c b/src/map/battleground.c
index 618679406..4bb6035ad 100644
--- a/src/map/battleground.c
+++ b/src/map/battleground.c
@@ -9,6 +9,7 @@
 #include "../common/showmsg.h"
 #include "../common/socket.h"
 #include "../common/strlib.h"
+#include "../common/conf.h"
 
 #include "battleground.h"
 #include "battle.h"
@@ -16,6 +17,7 @@
 #include "map.h"
 #include "npc.h"
 #include "pc.h"
+#include "party.h"
 #include "pet.h"
 #include "homunculus.h"
 #include "mercenary.h"
@@ -26,14 +28,12 @@
 static DBMap* bg_team_db; // int bg_id -> struct battleground_data*
 static unsigned int bg_team_counter = 0; // Next bg_id
 
-struct battleground_data* bg_team_search(int bg_id)
-{ // Search a BG Team using bg_id
+struct battleground_data* bg_team_search(int bg_id) { // Search a BG Team using bg_id
 	if( !bg_id ) return NULL;
 	return (struct battleground_data *)idb_get(bg_team_db, bg_id);
 }
 
-struct map_session_data* bg_getavailablesd(struct battleground_data *bg)
-{
+struct map_session_data* bg_getavailablesd(struct battleground_data *bg) {
 	int i;
 	nullpo_retr(NULL, bg);
 	ARR_FIND(0, MAX_BG_MEMBERS, i, bg->members[i].sd != NULL);
@@ -95,8 +95,7 @@ int bg_team_join(int bg_id, struct map_session_data *sd)
 
 	guild->send_dot_remove(sd);
 
-	for( i = 0; i < MAX_BG_MEMBERS; i++ )
-	{
+	for( i = 0; i < MAX_BG_MEMBERS; i++ ) {
 		if( (pl_sd = bg->members[i].sd) != NULL && pl_sd != sd )
 			clif->hpmeter_single(sd->fd, pl_sd->bl.id, pl_sd->battle_status.hp, pl_sd->battle_status.max_hp);
 	}
@@ -152,8 +151,7 @@ int bg_member_respawn(struct map_session_data *sd)
 	return 1; // Warped
 }
 
-int bg_create(unsigned short mapindex, short rx, short ry, const char *ev, const char *dev)
-{
+int bg_create(unsigned short mapindex, short rx, short ry, const char *ev, const char *dev) {
 	struct battleground_data *bg;
 	bg_team_counter++;
 
@@ -226,12 +224,10 @@ int bg_send_xy_timer_sub(DBKey key, DBData *data, va_list ap)
 	struct map_session_data *sd;
 	int i;
 	nullpo_ret(bg);
-	for( i = 0; i < MAX_BG_MEMBERS; i++ )
-	{
+	for( i = 0; i < MAX_BG_MEMBERS; i++ ) {
 		if( (sd = bg->members[i].sd) == NULL )
 			continue;
-		if( sd->bl.x != bg->members[i].x || sd->bl.y != bg->members[i].y )
-		{ // xy update
+		if( sd->bl.x != bg->members[i].x || sd->bl.y != bg->members[i].y ) { // xy update
 			bg->members[i].x = sd->bl.x;
 			bg->members[i].y = sd->bl.y;
 			clif->bg_xy(sd);
@@ -240,20 +236,496 @@ int bg_send_xy_timer_sub(DBKey key, DBData *data, va_list ap)
 	return 0;
 }
 
-int bg_send_xy_timer(int tid, unsigned int tick, int id, intptr_t data)
-{
+int bg_send_xy_timer(int tid, unsigned int tick, int id, intptr_t data) {
 	bg_team_db->foreach(bg_team_db, bg_send_xy_timer_sub, tick);
 	return 0;
 }
+void bg_config_read(void) {
+	config_t bg_conf;
+	config_setting_t *data = NULL;
+	const char *config_filename = "conf/battlegrounds.conf"; // FIXME hardcoded name
+	
+	if (conf_read_file(&bg_conf, config_filename))
+		return;
+	
+	data = config_lookup(&bg_conf, "battlegrounds");
+	
+	if (data != NULL) {
+		config_setting_t *settings = config_setting_get_elem(data, 0);
+		config_setting_t *arenas;
+		const char *delay_var;
+		int i, arena_count = 0, total = 0, offline = 0;
+		
+		if( !config_setting_lookup_string(settings, "global_delay_var", &delay_var) )
+			delay_var = "BG_Delay_Tick";
+		
+		safestrncpy(bg->gdelay_var, delay_var, BG_DELAY_VAR_LENGTH);
+		
+		config_setting_lookup_int(settings, "maximum_afk_seconds", &bg->mafksec);
+		
+		config_setting_lookup_bool(settings, "feature_off", &offline);
+		
+		if( offline == 0 )
+			bg->queue_on = true;
+
+		if( (arenas = config_setting_get_member(settings, "arenas")) != NULL ) {
+			arena_count = config_setting_length(arenas);
+			CREATE( bg->arena, struct bg_arena *, arena_count );
+			for(i = 0; i < arena_count; i++) {
+				config_setting_t *arena = config_setting_get_elem(arenas, i);
+				config_setting_t *reward;
+				const char *aName, *aEvent, *aDelayVar;
+				int minLevel = 0, maxLevel = 0;
+				int prizeWin, prizeLoss, prizeDraw;
+				int minPlayers, maxPlayers, minTeamPlayers;
+				int maxDuration;
+				int fillup_duration, pregame_duration;
+				
+				bg->arena[i] = NULL;
+				
+				if( !config_setting_lookup_string(arena, "name", &aName) ) {
+					ShowError("bg_config_read: failed to find 'name' for arena #%d\n",i);
+					continue;
+				}
+				
+				if( !config_setting_lookup_string(arena, "event", &aEvent) ) {
+					ShowError("bg_config_read: failed to find 'event' for arena #%d\n",i);
+					continue;
+				}
+
+				config_setting_lookup_int(arena, "minLevel", &minLevel);
+				config_setting_lookup_int(arena, "maxLevel", &maxLevel);
+				
+				if( minLevel < 0 ) {
+					ShowWarning("bg_config_read: invalid %d value for arena '%s' minLevel\n",minLevel,aName);
+					minLevel = 0;
+				}
+				if( maxLevel > MAX_LEVEL ) {
+					ShowWarning("bg_config_read: invalid %d value for arena '%s' maxLevel\n",maxLevel,aName);
+					maxLevel = MAX_LEVEL;
+				}
+				
+				if( !(reward = config_setting_get_member(settings, "reward")) ) {
+					ShowError("bg_config_read: failed to find 'reward' for arena '%s'/#%d\n",aName,i);
+					continue;
+				}
+				
+				config_setting_lookup_int(reward, "win", &prizeWin);
+				config_setting_lookup_int(reward, "loss", &prizeLoss);
+				config_setting_lookup_int(reward, "draw", &prizeDraw);
+				
+				if( prizeWin < 0 ) {
+					ShowWarning("bg_config_read: invalid %d value for arena '%s' reward:win\n",prizeWin,aName);
+					prizeWin = 0;
+				}
+				if( prizeLoss < 0 ) {
+					ShowWarning("bg_config_read: invalid %d value for arena '%s' reward:loss\n",prizeLoss,aName);
+					prizeLoss = 0;
+				}
+				if( prizeDraw < 0 ) {
+					ShowWarning("bg_config_read: invalid %d value for arena '%s' reward:draw\n",prizeDraw,aName);
+					prizeDraw = 0;
+				}
+				
+				config_setting_lookup_int(arena, "minPlayers", &minPlayers);
+				config_setting_lookup_int(arena, "maxPlayers", &maxPlayers);
+				config_setting_lookup_int(arena, "minTeamPlayers", &minTeamPlayers);
+				
+				if( minPlayers < 0 ) {
+					ShowWarning("bg_config_read: invalid %d value for arena '%s' minPlayers\n",minPlayers,aName);
+					minPlayers = 0;
+				}
+				if( maxPlayers > MAX_BG_MEMBERS * 2 ) {
+					ShowWarning("bg_config_read: invalid %d value for arena '%s' maxPlayers, change #define MAX_BG_MEMBERS\n",maxPlayers,aName);
+					maxPlayers = 0;
+				}
+				if( minTeamPlayers < 0 ) {
+					ShowWarning("bg_config_read: invalid %d value for arena '%s' minTeamPlayers\n",minTeamPlayers,aName);
+					minTeamPlayers = 0;
+				}
+
+				if( !config_setting_lookup_string(arena, "delay_var", &aDelayVar) ) {
+					ShowError("bg_config_read: failed to find 'delay_var' for arena '%s'/#%d\n",aName,i);
+					continue;
+				}
+				
+				config_setting_lookup_int(arena, "maxDuration", &maxDuration);
+				
+				if( maxDuration < 0 ) {
+					ShowWarning("bg_config_read: invalid %d value for arena '%s' maxDuration\n",maxDuration,aName);
+					maxDuration = 30;
+				}
+				
+				config_setting_lookup_int(arena, "fillDuration", &fillup_duration);
+				config_setting_lookup_int(arena, "pGameDuration", &pregame_duration);
+
+				if( fillup_duration < 20 ) {
+					ShowWarning("bg_config_read: invalid %d value for arena '%s' fillDuration, minimum has to be 20, defaulting to 20.\n",fillup_duration,aName);
+					fillup_duration = 20;
+				}
+
+				if( pregame_duration < 20 ) {
+					ShowWarning("bg_config_read: invalid %d value for arena '%s' pGameDuration, minimum has to be 20, defaulting to 20.\n",pregame_duration,aName);
+					pregame_duration = 20;
+				}
+
+				
+				CREATE( bg->arena[i], struct bg_arena, 1 );
+				
+				bg->arena[i]->id = i;
+				safestrncpy(bg->arena[i]->name, aName, NAME_LENGTH);
+				safestrncpy(bg->arena[i]->npc_event, aEvent, EVENT_NAME_LENGTH);
+				bg->arena[i]->min_level = minLevel;
+				bg->arena[i]->max_level = maxLevel;
+				bg->arena[i]->prize_win = prizeWin;
+				bg->arena[i]->prize_loss = prizeLoss;
+				bg->arena[i]->prize_draw = prizeDraw;
+				bg->arena[i]->min_players = minPlayers;
+				bg->arena[i]->max_players = maxPlayers;
+				bg->arena[i]->min_team_players = minTeamPlayers;
+				safestrncpy(bg->arena[i]->delay_var, aDelayVar, NAME_LENGTH);
+				bg->arena[i]->maxDuration = maxDuration;
+				bg->arena[i]->queue_id = -1;
+				bg->arena[i]->begin_timer = INVALID_TIMER;
+				bg->arena[i]->fillup_timer = INVALID_TIMER;
+				bg->arena[i]->pregame_duration = pregame_duration;
+				bg->arena[i]->fillup_duration = fillup_duration;
+				
+				total++;
+			}
+			bg->arenas = arena_count;
+		}
+		
+		ShowStatus("Done reading '"CL_WHITE"%d"CL_RESET"' arenas in '"CL_WHITE"%s"CL_RESET"'.\n", total, config_filename);
+		config_destroy(&bg_conf);
+	}
+}
+struct bg_arena *bg_name2arena (char *name) {
+	int i;
+	for(i = 0; i < bg->arenas; i++) {
+		if( strcmpi(bg->arena[i]->name,name) == 0 )
+			return bg->arena[i];
+	}
+	return NULL;
+}
+int bg_id2pos ( int queue_id, int account_id ) {
+	struct hQueue *queue = script->queue(queue_id);
+	if( queue ) {
+		int i;
+		for(i = 0; i < queue->items; i++ ) {
+			if( queue->item[i] == account_id ) {
+				return i;
+			}
+		}
+	}
+	return 0;
+}
+void bg_queue_player_cleanup(struct map_session_data *sd) {
+	if ( sd->bg_queue.client_has_bg_data ) {
+		clif->bgqueue_notice_delete(sd,BGQND_CLOSEWINDOW, sd->bg_queue.arena->id);
+	}
+	script->queue_remove(sd->bg_queue.arena->queue_id,sd->status.account_id);
+	sd->bg_queue.arena = NULL;
+	sd->bg_queue.ready = 0;
+	sd->bg_queue.client_has_bg_data = 0;
+	sd->bg_queue.type = 0;
+}
+void bg_match_over(struct bg_arena *arena, bool canceled) {
+	struct hQueue *queue = &script->hq[arena->queue_id];
+	int i;//, count = 0;
+	
+	/* if( !canceled ) <check time/score> */
+	
+	for( i = 0; i < queue->items; i++ ) {
+		struct map_session_data * sd = NULL;
+		
+		if( ( sd = map_id2sd(queue->item[i]) ) ) {
+			bg->queue_pc_cleanup(sd);
+			clif->colormes(sd->fd,COLOR_RED,"BG Match Cancelled: not enough players");
+		}
+	}
 
-void do_init_battleground(void)
-{
+	bg->arena[i]->begin_timer = INVALID_TIMER;
+	bg->arena[i]->fillup_timer = INVALID_TIMER;
+	/* reset queue */
+}
+void bg_begin(struct bg_arena *arena) {
+	struct hQueue *queue = &script->hq[arena->queue_id];
+	int i, count = 0;
+	
+	for( i = 0; i < queue->items; i++ ) {
+		struct map_session_data * sd = NULL;
+		
+		if( ( sd = map_id2sd(queue->item[i]) ) ) {
+			if( sd->bg_queue.ready == 1 )
+				count++;
+			else
+				bg->queue_pc_cleanup(sd);
+		}
+	}
+
+	if( count < arena->min_players ) {
+		bg_match_over(arena,true);
+	} else {
+		;
+		/* we split evenly? */
+		/* but if a party of say 10 joins, it cant be split evenly unless by luck there are 10 soloers in the queue besides them */
+		/* not sure how to split T_T needs more info */
+	}
+}
+int bg_begin_timer(int tid, unsigned int tick, int id, intptr_t data) {
+	bg->begin(bg->arena[id]);
+	return 0;
+}
+
+void bg_queue_pregame(struct bg_arena *arena) {
+	struct hQueue *queue = &script->hq[arena->queue_id];
+	int i;
+	
+	for( i = 0; i < queue->items; i++ ) {
+		struct map_session_data * sd = NULL;
+		
+		if( ( sd = map_id2sd(queue->item[i]) ) ) {
+			clif->bgqueue_battlebegins(sd,arena->id,SELF);
+		}
+	}
+	arena->begin_timer = add_timer( gettick() + (arena->pregame_duration*1000), bg->begin_timer, arena->id, 0 );
+}
+int bg_fillup_timer(int tid, unsigned int tick, int id, intptr_t data) {
+	bg->queue_pregame(bg->arena[id]);
+	return 0;
+}
+
+void bg_queue_check(struct bg_arena *arena) {
+	int count = script->hq[arena->queue_id].items;
+	
+	if( count == arena->max_players ) {
+		if( arena->fillup_timer != INVALID_TIMER ) {
+			delete_timer(arena->fillup_timer,bg_fillup_timer);
+			arena->fillup_timer = INVALID_TIMER;
+		}
+		bg->queue_pregame(arena);
+	} else if( count >= arena->min_players && arena->fillup_timer == INVALID_TIMER ) {
+		arena->fillup_timer = add_timer( gettick() + (arena->fillup_duration*1000), bg->fillup_timer, arena->id, 0 );
+	}
+}
+void bg_queue_add(struct map_session_data *sd, struct bg_arena *arena, enum bg_queue_types type) {
+	enum BATTLEGROUNDS_QUEUE_ACK result = bg->can_queue(sd,arena,type);
+	struct hQueue *queue;
+	int i, count = 0;
+	
+	if( arena->begin_timer != INVALID_TIMER ) {
+		clif->bgqueue_ack(sd,BGQA_FAIL_QUEUING_FINISHED,arena->id);
+		return;
+	}
+	
+	if( result != BGQA_SUCCESS ) {
+		clif->bgqueue_ack(sd,result,arena->id);
+		return;
+	}
+		
+	switch( type ) { /* guild/party already validated in can_queue */
+		case BGQT_PARTY: {
+			struct party_data *p = party_search(sd->status.party_id);
+			for( i = 0; i < MAX_PARTY; i++ ) {
+				if( !p->data[i].sd || p->data[i].sd->bg_queue.arena != NULL ) continue;
+				count++;
+			}
+		}
+			break;
+		case BGQT_GUILD:
+			for ( i=0; i<sd->guild->max_member; i++ ) {
+				if ( !sd->guild->member[i].sd || sd->guild->member[i].sd->bg_queue.arena != NULL )
+					continue;
+				count++;
+			}
+			break;
+		case BGQT_INDIVIDUAL:
+			count = 1;
+			break;
+	}
+	
+	if( !(queue = script->queue(arena->queue_id)) || (queue->items+count) >= arena->max_players ) {
+		clif->bgqueue_ack(sd,BGQA_FAIL_PPL_OVERAMOUNT,arena->id);
+		return;
+	}
+		
+	switch( type ) {
+		case BGQT_INDIVIDUAL:
+			sd->bg_queue.type = type;
+			sd->bg_queue.arena = arena;
+			sd->bg_queue.ready = 0;
+			script->queue_add(arena->queue_id,sd->status.account_id);
+			clif->bgqueue_joined(sd,script->hq[arena->queue_id].items);
+			clif->bgqueue_update_info(sd,arena->id,script->hq[arena->queue_id].items);
+			break;
+		case BGQT_PARTY: {
+			struct party_data *p = party_search(sd->status.party_id);
+			for( i = 0; i < MAX_PARTY; i++ ) {
+				if( !p->data[i].sd || p->data[i].sd->bg_queue.arena != NULL ) continue;
+				p->data[i].sd->bg_queue.type = type;
+				p->data[i].sd->bg_queue.arena = arena;
+				p->data[i].sd->bg_queue.ready = 0;
+				script->queue_add(arena->queue_id,p->data[i].sd->status.account_id);
+				clif->bgqueue_joined(p->data[i].sd,script->hq[arena->queue_id].items);
+				clif->bgqueue_update_info(p->data[i].sd,arena->id,script->hq[arena->queue_id].items);
+			}
+		}
+			break;
+		case BGQT_GUILD:
+			for ( i=0; i<sd->guild->max_member; i++ ) {
+				if ( !sd->guild->member[i].sd || sd->guild->member[i].sd->bg_queue.arena != NULL )
+					continue;
+				sd->guild->member[i].sd->bg_queue.type = type;
+				sd->guild->member[i].sd->bg_queue.arena = arena;
+				sd->guild->member[i].sd->bg_queue.ready = 0;
+				script->queue_add(arena->queue_id,sd->guild->member[i].sd->status.account_id);
+				clif->bgqueue_joined(sd->guild->member[i].sd,script->hq[arena->queue_id].items);
+				clif->bgqueue_update_info(sd->guild->member[i].sd,arena->id,script->hq[arena->queue_id].items);
+			}
+			break;
+	}
+		
+	clif->bgqueue_ack(sd,BGQA_SUCCESS,arena->id);
+	
+}
+enum BATTLEGROUNDS_QUEUE_ACK bg_canqueue(struct map_session_data *sd, struct bg_arena *arena, enum bg_queue_types type) {
+	int tick;
+	unsigned int tsec;
+	if ( sd->status.base_level > arena->max_level || sd->status.base_level < arena->max_level )
+		return BGQA_FAIL_LEVEL_INCORRECT;
+	
+	if ( !(sd->class_&JOBL_2) ) /* TODO: maybe make this a per-arena setting, so users may make custom arenas like baby-only,whatever. */
+		return BGQA_FAIL_CLASS_INVALID;
+	
+	tsec = time(NULL);
+	
+	if ( ( tick = pc_readglobalreg(sd, bg->gdelay_var) ) && tsec < tick ) {
+		char response[100];
+		if( (tick-tsec) > 60 )
+			sprintf(response, "You are a deserter! Wait %d minute(s) before you can apply again",(tick-tsec)/60);
+		else
+			sprintf(response, "You are a deserter! Wait %d seconds before you can apply again",(tick-tsec));
+		clif->colormes(sd->fd,COLOR_RED,response);
+		return BGQA_FAIL_DESERTER;
+	}
+	
+	if ( ( tick = pc_readglobalreg(sd, arena->cooldown_variable) ) && tsec < tick ) {
+		char response[100];
+		if( (tick-tsec) > 60 )
+			sprintf(response, "You can't reapply to this arena so fast. Apply to the different arena or wait %d minute(s)",(tick-tsec)/60);
+		else
+			sprintf(response, "You can't reapply to this arena so fast. Apply to the different arena or wait %d seconds",(tick-tsec));
+		clif->colormes(sd->fd,COLOR_RED,response);
+		return BGQA_FAIL_COOLDOWN;
+	}
+
+	if( sd->bg_queue.arena != NULL )
+		return BGQA_DUPLICATE_REQUEST;
+		
+	switch(type) {
+		case BGQT_GUILD:
+			if( !sd->guild || !sd->state.gmaster_flag )
+				return BGQA_NOT_PARTY_GUILD_LEADER;
+			else {
+				int i, count = 0;
+				for ( i=0; i<sd->guild->max_member; i++ ) {
+					if ( !sd->guild->member[i].sd || sd->guild->member[i].sd->bg_queue.arena != NULL )
+						continue;
+					count++;
+				}
+				if ( count < arena->min_team_players ) {
+					char response[100];
+					if( count != sd->guild->connect_member && sd->guild->connect_member >= arena->min_team_players )
+						sprintf(response, "Can't apply: not enough members in your team/guild that have not entered the queue in individual mode, minimum is %d",arena->min_team_players);
+					else
+						sprintf(response, "Can't apply: not enough members in your team/guild, minimum is %d",arena->min_team_players);
+					clif->colormes(sd->fd,COLOR_RED,response);
+					return BGQA_FAIL_TEAM_COUNT;
+				}
+			}
+			break;
+		case BGQT_PARTY:
+			if( !sd->status.party_id )
+				return BGQA_NOT_PARTY_GUILD_LEADER;
+			else {
+				struct party_data *p;
+				if( (p = party_search(sd->status.party_id) ) ) {
+					int i, count = 0;
+					bool is_leader = false;
+
+					for(i = 0; i < MAX_PARTY; i++) {
+						if( !p->data[i].sd )
+							continue;
+						if( p->party.member[i].leader && sd == p->data[i].sd )
+							is_leader = true;
+						if( p->data[i].sd->bg_queue.arena == NULL )
+							count++;
+					}
+
+					if( !is_leader )
+						return BGQA_NOT_PARTY_GUILD_LEADER;
+										
+					if( count < arena->min_team_players ) {
+						char response[100];
+						if( count != p->party.count && p->party.count >= arena->min_team_players )
+							sprintf(response, "Can't apply: not enough members in your team/party that have not entered the queue in individual mode, minimum is %d",arena->min_team_players);
+						else
+							sprintf(response, "Can't apply: not enough members in your team/party, minimum is %d",arena->min_team_players);
+						clif->colormes(sd->fd,COLOR_RED,response);
+						return BGQA_FAIL_TEAM_COUNT;
+					}
+					
+				} else
+					return BGQA_NOT_PARTY_GUILD_LEADER;
+			}
+			break;
+		case BGQT_INDIVIDUAL:/* already did */
+			break;
+		default:
+			ShowDebug("bg_canqueue: unknown/unsupported type %d\n",type);
+			return BGQA_DUPLICATE_REQUEST;
+	}
+	
+	return BGQA_SUCCESS;
+}
+void do_init_battleground(void) {
 	bg_team_db = idb_alloc(DB_OPT_RELEASE_DATA);
 	add_timer_func_list(bg_send_xy_timer, "bg_send_xy_timer");
 	add_timer_interval(gettick() + battle_config.bg_update_interval, bg_send_xy_timer, 0, 0, battle_config.bg_update_interval);
 }
 
-void do_final_battleground(void)
-{
+void do_final_battleground(void) {
+	int i;
+	
 	bg_team_db->destroy(bg_team_db, NULL);
+	
+	for( i = 0; i < bg->arenas; i++ ) {
+		if( bg->arena[i] )
+			aFree(bg->arena[i]);
+	}
+	
+	if( bg->arena )
+		aFree(bg->arena);
+}
+void battleground_defaults(void) {
+	bg = &bg_s;
+	
+	bg->queue_on = false;
+	
+	bg->mafksec = 0;
+	bg->arena = NULL;
+	bg->arenas = 0;
+	/* */
+	bg->name2arena = bg_name2arena;
+	bg->queue_add = bg_queue_add;
+	bg->can_queue = bg_canqueue;
+	bg->id2pos = bg_id2pos;
+	bg->queue_pc_cleanup = bg_queue_player_cleanup;
+	bg->begin = bg_begin;
+	bg->begin_timer = bg_begin_timer;
+	bg->queue_pregame = bg_queue_pregame;
+	bg->fillup_timer = bg_fillup_timer;
+	/* */
+	bg->config_read = bg_config_read;
 }
diff --git a/src/map/battleground.h b/src/map/battleground.h
index c2b74a534..8fe9f3b77 100644
--- a/src/map/battleground.h
+++ b/src/map/battleground.h
@@ -1,5 +1,6 @@
-// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
-// For more information, see LICENCE in the main folder
+// Copyright (c) Hercules Dev Team, licensed under GNU GPL.
+// See the LICENSE file
+// Portions Copyright (c) Athena Dev Teams
 
 #ifndef _BATTLEGROUND_H_
 #define _BATTLEGROUND_H_
@@ -7,7 +8,21 @@
 #include "../common/mmo.h" // struct party
 #include "guild.h"
 
+/**
+ * Defines
+ **/
 #define MAX_BG_MEMBERS 30
+#define BG_DELAY_VAR_LENGTH 30
+
+/**
+ * Enumerations
+ **/
+enum bg_queue_types {
+	BGQT_INVALID,
+	BGQT_INDIVIDUAL,
+	BGQT_PARTY,
+	BGQT_GUILD
+};
 
 struct battleground_member_data {
 	unsigned short x, y;
@@ -42,4 +57,51 @@ int bg_team_warp(int bg_id, unsigned short mapindex, short x, short y);
 int bg_member_respawn(struct map_session_data *sd);
 int bg_send_message(struct map_session_data *sd, const char *mes, int len);
 
+struct bg_arena {
+	char name[NAME_LENGTH];
+	unsigned char id;
+	char npc_event[EVENT_NAME_LENGTH];
+	short min_level, max_level;
+	short prize_win, prize_loss, prize_draw;
+	short min_players;
+	short max_players;
+	short min_team_players;
+	char cooldown_variable[NAME_LENGTH];
+	char delay_var[NAME_LENGTH];
+	unsigned short maxDuration;
+	int queue_id;
+	int begin_timer;
+	int fillup_timer;
+	int game_timer;
+	unsigned short fillup_duration;
+	unsigned short pregame_duration;
+};
+
+/* battleground.c interface (incomplete) */
+struct battleground_interface {
+	bool queue_on;
+	/* */
+	int mafksec;
+	char gdelay_var[BG_DELAY_VAR_LENGTH];
+	/* */
+	struct bg_arena **arena;
+	unsigned char arenas;
+	/* */
+	struct bg_arena *(*name2arena) (char *name);
+	void (*queue_add) (struct map_session_data *sd, struct bg_arena *arena, enum bg_queue_types type);
+	enum BATTLEGROUNDS_QUEUE_ACK (*can_queue) (struct map_session_data *sd, struct bg_arena *arena, enum bg_queue_types type);
+	int (*id2pos) (int queue_id, int account_id);
+	void (*queue_pc_cleanup) (struct map_session_data *sd);
+	void (*begin) (struct bg_arena *arena);
+	int (*begin_timer) (int tid, unsigned int tick, int id, intptr_t data);
+	void (*queue_pregame) (struct bg_arena *arena);
+	int (*fillup_timer) (int tid, unsigned int tick, int id, intptr_t data);
+	/* */
+	void (*config_read) (void);
+} bg_s;
+
+struct battleground_interface *bg;
+
+void battleground_defaults(void);
+
 #endif /* _BATTLEGROUND_H_ */
diff --git a/src/map/chrif.c b/src/map/chrif.c
index 06956e731..ee2e252c1 100644
--- a/src/map/chrif.c
+++ b/src/map/chrif.c
@@ -344,9 +344,9 @@ int chrif_sendmap(int fd) {
 	ShowStatus("Sending maps to char server...\n");
 	
 	// Sending normal maps, not instances
-	WFIFOHEAD(fd, 4 + instance_start * 4);
+	WFIFOHEAD(fd, 4 + instance->start_id * 4);
 	WFIFOW(fd,0) = 0x2afa;
-	for(i = 0; i < instance_start; i++)
+	for(i = 0; i < instance->start_id; i++)
 		WFIFOW(fd,4+i*4) = map[i].index;
 	WFIFOW(fd,2) = 4 + i * 4;
 	WFIFOSET(fd,WFIFOW(fd,2));
@@ -1537,9 +1537,8 @@ static int check_connect_char_server(int tid, unsigned int tick, int id, intptr_
 		}
 
 		chrif_state = 0;
-		char_fd = make_connection(char_ip, char_port,false);
 		
-		if (char_fd == -1)//Attempt to connect later. [Skotlex]
+		if ( ( char_fd = make_connection(char_ip, char_port,NULL) ) == -1) //Attempt to connect later. [Skotlex]
 			return 0;
 
 		session[char_fd]->func_parse = chrif_parse;
diff --git a/src/map/clif.c b/src/map/clif.c
index 2f69ce2fd..99b4d8c11 100644
--- a/src/map/clif.c
+++ b/src/map/clif.c
@@ -1333,7 +1333,7 @@ int clif_spawn(struct block_list *bl)
 	/**
 	* Hide NPC from maya purple card.
 	**/
-	if(bl->type == BL_NPC && !((TBL_NPC*)bl)->chat_id && (((TBL_NPC*)bl)->sc.option&OPTION_INVISIBLE))
+	if(bl->type == BL_NPC && !((TBL_NPC*)bl)->chat_id && (((TBL_NPC*)bl)->option&OPTION_INVISIBLE))
 		return 0;
 
 	clif->spawn_unit(bl,AREA_WOS);
@@ -1612,7 +1612,7 @@ void clif_move(struct unit_data *ud)
 	/**
 	* Hide NPC from maya purple card.
 	**/
-	if(bl->type == BL_NPC && !((TBL_NPC*)bl)->chat_id && (((TBL_NPC*)bl)->sc.option&OPTION_INVISIBLE))
+	if(bl->type == BL_NPC && !((TBL_NPC*)bl)->chat_id && (((TBL_NPC*)bl)->option&OPTION_INVISIBLE))
 		return;
 
 	if (ud->state.speed_changed) {
@@ -1666,15 +1666,14 @@ void clif_quitsave(int fd,struct map_session_data *sd) {
 
 /// Notifies the client of a position change to coordinates on given map (ZC_NPCACK_MAPMOVE).
 /// 0091 <map name>.16B <x>.W <y>.W
-void clif_changemap(struct map_session_data *sd, short map, int x, int y)
-{
+void clif_changemap(struct map_session_data *sd, short m, int x, int y) {
 	int fd;
 	nullpo_retv(sd);
 	fd = sd->fd;
 
 	WFIFOHEAD(fd,packet_len(0x91));
 	WFIFOW(fd,0) = 0x91;
-	mapindex_getmapname_ext(mapindex_id2name(map), (char*)WFIFOP(fd,2));
+	mapindex_getmapname_ext(map[m].cName ? map[m].cName : map[m].name, (char*)WFIFOP(fd,2));
 	WFIFOW(fd,18) = x;
 	WFIFOW(fd,20) = y;
 	WFIFOSET(fd,packet_len(0x91));
@@ -1683,8 +1682,7 @@ void clif_changemap(struct map_session_data *sd, short map, int x, int y)
 
 /// Notifies the client of a position change to coordinates on given map, which is on another map-server (ZC_NPCACK_SERVERMOVE).
 /// 0092 <map name>.16B <x>.W <y>.W <ip>.L <port>.W
-void clif_changemapserver(struct map_session_data* sd, unsigned short map_index, int x, int y, uint32 ip, uint16 port)
-{
+void clif_changemapserver(struct map_session_data* sd, unsigned short map_index, int x, int y, uint32 ip, uint16 port) {
 	int fd;
 	nullpo_retv(sd);
 	fd = sd->fd;
@@ -4344,7 +4342,7 @@ void clif_getareachar_unit(struct map_session_data* sd,struct block_list *bl) {
 	/**
 	* Hide NPC from maya purple card.
 	**/
-	if(bl->type == BL_NPC && !((TBL_NPC*)bl)->chat_id && (((TBL_NPC*)bl)->sc.option&OPTION_INVISIBLE))
+	if(bl->type == BL_NPC && !((TBL_NPC*)bl)->chat_id && (((TBL_NPC*)bl)->option&OPTION_INVISIBLE))
 		return;
 
 	if ( ( ud = unit_bl2ud(bl) ) && ud->walktimer != INVALID_TIMER )
@@ -4601,16 +4599,13 @@ void clif_changemapcell(int fd, int16 m, int x, int y, int type, enum send_targe
 	WBUFW(buf,2) = x;
 	WBUFW(buf,4) = y;
 	WBUFW(buf,6) = type;
-	mapindex_getmapname_ext(map[m].name,(char*)WBUFP(buf,8));
+	mapindex_getmapname_ext(map[m].cName ? map[m].cName : map[m].name,(char*)WBUFP(buf,8));
 
-	if( fd )
-	{
+	if( fd ) {
 		WFIFOHEAD(fd,packet_len(0x192));
 		memcpy(WFIFOP(fd,0), buf, packet_len(0x192));
 		WFIFOSET(fd,packet_len(0x192));
-	}
-	else
-	{
+	} else {
 		struct block_list dummy_bl;
 		dummy_bl.type = BL_NUL;
 		dummy_bl.x = x;
@@ -4799,7 +4794,7 @@ int clif_outsight(struct block_list *bl,va_list ap)
 				clif->clearchar_skillunit((struct skill_unit *)bl,tsd->fd);
 				break;
 			case BL_NPC:
-				if( !(((TBL_NPC*)bl)->sc.option&OPTION_INVISIBLE) )
+				if( !(((TBL_NPC*)bl)->option&OPTION_INVISIBLE) )
 					clif->clearunit_single(bl->id,CLR_OUTSIGHT,tsd->fd);
 				break;
 			default:
@@ -4810,7 +4805,7 @@ int clif_outsight(struct block_list *bl,va_list ap)
 	}
 	if (sd && sd->fd) { //sd is watching tbl go out of view.
 		if (((vd=status_get_viewdata(tbl)) && vd->class_ != INVISIBLE_CLASS) &&
-			!(tbl->type == BL_NPC && (((TBL_NPC*)tbl)->sc.option&OPTION_INVISIBLE)))
+			!(tbl->type == BL_NPC && (((TBL_NPC*)tbl)->option&OPTION_INVISIBLE)))
 			clif->clearunit_single(tbl->id,CLR_OUTSIGHT,sd->fd);
 	}
 	return 0;
@@ -6529,7 +6524,7 @@ void clif_party_member_info(struct party_data *p, struct map_session_data *sd)
 	WBUFB(buf,14) = (p->party.member[i].online)?0:1;
 	memcpy(WBUFP(buf,15), p->party.name, NAME_LENGTH);
 	memcpy(WBUFP(buf,39), sd->status.name, NAME_LENGTH);
-	mapindex_getmapname_ext(map[sd->bl.m].name, (char*)WBUFP(buf,63));
+	mapindex_getmapname_ext(map[sd->bl.m].cName ? map[sd->bl.m].cName : map[sd->bl.m].name, (char*)WBUFP(buf,63));
 	WBUFB(buf,79) = (p->party.item&1)?1:0;
 	WBUFB(buf,80) = (p->party.item&2)?1:0;
 	clif->send(buf,packet_len(0x1e9),&sd->bl,PARTY);
@@ -8485,7 +8480,7 @@ void clif_refresh(struct map_session_data *sd)
 	int i;
 	nullpo_retv(sd);
 
-	clif->changemap(sd,sd->mapindex,sd->bl.x,sd->bl.y);
+	clif->changemap(sd,sd->bl.m,sd->bl.x,sd->bl.y);
 	clif->inventorylist(sd);
 	if(pc_iscarton(sd)) {
 		clif->cartlist(sd);
@@ -9328,7 +9323,7 @@ void clif_parse_LoadEndAck(int fd,struct map_session_data *sd)
 
 	if (sd->state.rewarp) { //Rewarp player.
 		sd->state.rewarp = 0;
-		clif->changemap(sd, sd->mapindex, sd->bl.x, sd->bl.y);
+		clif->changemap(sd, sd->bl.m, sd->bl.x, sd->bl.y);
 		return;
 	}
 
@@ -9372,9 +9367,9 @@ void clif_parse_LoadEndAck(int fd,struct map_session_data *sd)
 	if( !(sd->sc.option&OPTION_INVISIBLE) ) { // increment the number of pvp players on the map
 		map[sd->bl.m].users_pvp++;
 	}
-	if( map[sd->bl.m].instance_id ) {
-		instance[map[sd->bl.m].instance_id].users++;
-		instance_check_idle(map[sd->bl.m].instance_id);
+	if( map[sd->bl.m].instance_id >= 0 ) {
+		instances[map[sd->bl.m].instance_id].users++;
+		instance->check_idle(map[sd->bl.m].instance_id);
 	}
 	sd->state.debug_remove_map = 0; // temporary state to track double remove_map's [FlavioJS]
 
@@ -15573,48 +15568,61 @@ void clif_font(struct map_session_data *sd)
 /*==========================================
  * Instancing Window
  *------------------------------------------*/
-int clif_instance(int instance_id, int type, int flag)
-{
+int clif_instance(int instance_id, int type, int flag) {
 	struct map_session_data *sd;
-	struct party_data *p;
 	unsigned char buf[255];
+	enum send_target target = PARTY;
+	
+	switch( instances[instance_id].owner_type ) {
+		case IOT_NONE:
+			return 0;
+		case IOT_GUILD:
+			target = GUILD;
+			sd = guild->getavailablesd(guild->search(instances[instance_id].owner_id));
+			break;
+		case IOT_PARTY:
+			/* default is already PARTY */
+			sd = party_getavailablesd(party_search(instances[instance_id].owner_id));
+			break;
+		case IOT_CHAR:
+			target = SELF;
+			sd = map_id2sd(instances[instance_id].owner_id);
+			break;
+	}
 
-	if( (p = party_search(instance[instance_id].party_id)) == NULL || (sd = party_getavailablesd(p)) == NULL )
+	if( !sd )
 		return 0;
-
+	
 	switch( type ) {
 		case 1:
 			// S 0x2cb <Instance name>.61B <Standby Position>.W
 			// Required to start the instancing information window on Client
 			// This window re-appear each "refresh" of client automatically until type 4 is send to client.
 			WBUFW(buf,0) = 0x02CB;
-			memcpy(WBUFP(buf,2),instance[instance_id].name,INSTANCE_NAME_LENGTH);
+			memcpy(WBUFP(buf,2),instances[instance_id].name,INSTANCE_NAME_LENGTH);
 			WBUFW(buf,63) = flag;
-			clif->send(buf,packet_len(0x02CB),&sd->bl,PARTY);
+			clif->send(buf,packet_len(0x02CB),&sd->bl,target);
 			break;
 		case 2:
 			// S 0x2cc <Standby Position>.W
 			// To announce Instancing queue creation if no maps available
 			WBUFW(buf,0) = 0x02CC;
 			WBUFW(buf,2) = flag;
-			clif->send(buf,packet_len(0x02CC),&sd->bl,PARTY);
+			clif->send(buf,packet_len(0x02CC),&sd->bl,target);
 			break;
 		case 3:
 		case 4:
 			// S 0x2cd <Instance Name>.61B <Instance Remaining Time>.L <Instance Noplayers close time>.L
 			WBUFW(buf,0) = 0x02CD;
-			memcpy(WBUFP(buf,2),instance[instance_id].name,61);
-			if( type == 3 )
-			{
-				WBUFL(buf,63) = (uint32)instance[instance_id].progress_timeout;
+			memcpy(WBUFP(buf,2),instances[instance_id].name,61);
+			if( type == 3 ) {
+				WBUFL(buf,63) = instances[instance_id].progress_timeout;
 				WBUFL(buf,67) = 0;
-			}
-			else
-			{
+			} else {
 				WBUFL(buf,63) = 0;
-				WBUFL(buf,67) = (uint32)instance[instance_id].idle_timeout;
+				WBUFL(buf,67) = instances[instance_id].idle_timeout;
 			}
-			clif->send(buf,packet_len(0x02CD),&sd->bl,PARTY);
+			clif->send(buf,packet_len(0x02CD),&sd->bl,target);
 			break;
 		case 5:
 			// S 0x2ce <Message ID>.L
@@ -15626,7 +15634,7 @@ int clif_instance(int instance_id, int type, int flag)
 			WBUFW(buf,0) = 0x02CE;
 			WBUFL(buf,2) = flag;
 			//WBUFL(buf,6) = EnterLimitDate;
-			clif->send(buf,packet_len(0x02CE),&sd->bl,PARTY);
+			clif->send(buf,packet_len(0x02CE),&sd->bl,target);
 			break;
 	}
 	return 0;
@@ -15634,24 +15642,24 @@ int clif_instance(int instance_id, int type, int flag)
 
 void clif_instance_join(int fd, int instance_id)
 {
-	if( instance[instance_id].idle_timer != INVALID_TIMER ) {
+	if( instances[instance_id].idle_timer != INVALID_TIMER ) {
 		WFIFOHEAD(fd,packet_len(0x02CD));
 		WFIFOW(fd,0) = 0x02CD;
-		memcpy(WFIFOP(fd,2),instance[instance_id].name,61);
+		memcpy(WFIFOP(fd,2),instances[instance_id].name,61);
 		WFIFOL(fd,63) = 0;
-		WFIFOL(fd,67) = (uint32)instance[instance_id].idle_timeout;
+		WFIFOL(fd,67) = instances[instance_id].idle_timeout;
 		WFIFOSET(fd,packet_len(0x02CD));
-	} else if( instance[instance_id].progress_timer != INVALID_TIMER ) {
+	} else if( instances[instance_id].progress_timer != INVALID_TIMER ) {
 		WFIFOHEAD(fd,packet_len(0x02CD));
 		WFIFOW(fd,0) = 0x02CD;
-		memcpy(WFIFOP(fd,2),instance[instance_id].name,61);
-		WFIFOL(fd,63) = (uint32)instance[instance_id].progress_timeout;;
+		memcpy(WFIFOP(fd,2),instances[instance_id].name,61);
+		WFIFOL(fd,63) = instances[instance_id].progress_timeout;
 		WFIFOL(fd,67) = 0;
 		WFIFOSET(fd,packet_len(0x02CD));
 	} else {
 		WFIFOHEAD(fd,packet_len(0x02CB));
 		WFIFOW(fd,0) = 0x02CB;
-		memcpy(WFIFOP(fd,2),instance[instance_id].name,61);
+		memcpy(WFIFOP(fd,2),instances[instance_id].name,61);
 		WFIFOW(fd,63) = 0;
 		WFIFOSET(fd,packet_len(0x02CB));
 	}
@@ -16949,6 +16957,124 @@ void clif_status_change_end(struct block_list *bl, int tid, enum send_target tar
 	clif->send(&p,sizeof(p), bl, target);
 }
 
+void clif_bgqueue_ack(struct map_session_data *sd, enum BATTLEGROUNDS_QUEUE_ACK response, unsigned char arena_id) {
+	
+	switch (response) {
+		case BGQA_FAIL_COOLDOWN:
+		case BGQA_FAIL_DESERTER:
+		case BGQA_FAIL_TEAM_COUNT:
+			break;
+		default: {
+			struct packet_bgqueue_ack p;
+			
+			p.PacketType = bgqueue_ackType;
+			p.type = response;
+			safestrncpy(p.bg_name, bg->arena[arena_id]->name, sizeof(p.bg_name));
+			
+			clif->send(&p,sizeof(p), &sd->bl, SELF);
+		}
+			break;
+	}	
+}
+
+
+void clif_bgqueue_notice_delete(struct map_session_data *sd, enum BATTLEGROUNDS_QUEUE_NOTICE_DELETED response, unsigned char arena_id) {
+	struct packet_bgqueue_notice_delete p;
+	
+	p.PacketType = bgqueue_notice_deleteType;
+	p.type = response;
+	safestrncpy(p.bg_name, bg->arena[arena_id]->name, sizeof(p.bg_name));
+	
+	clif->send(&p,sizeof(p), &sd->bl, SELF);
+}
+
+void clif_parse_bgqueue_register(int fd, struct map_session_data *sd) {
+	struct packet_bgqueue_register *p = P2PTR(fd, bgqueue_registerType);
+	struct bg_arena *arena = NULL;
+
+	if( !bg->queue_on ) return; /* temp, until feature is complete */
+	
+	if( !(arena = bg->name2arena(p->bg_name)) ) {
+		clif->bgqueue_ack(sd,BGQA_FAIL_BGNAME_INVALID,0);
+		return;
+	}
+	
+	switch( (enum bg_queue_types)p->type ) {
+		case BGQT_INDIVIDUAL:
+		case BGQT_PARTY:
+		case BGQT_GUILD:
+			break;
+		default:
+			clif->bgqueue_ack(sd,BGQA_FAIL_TYPE_INVALID, arena->id);
+			return;
+	}	
+	
+	bg->queue_add(sd, arena, (enum bg_queue_types)p->type);
+}
+
+void clif_bgqueue_update_info(struct map_session_data *sd, unsigned char arena_id, int position) {
+	struct packet_bgqueue_update_info p;
+	
+	p.PacketType = bgqueue_updateinfoType;
+	safestrncpy(p.bg_name, bg->arena[arena_id]->name, sizeof(p.bg_name));
+	p.position = position;
+	
+	sd->bg_queue.client_has_bg_data = true;	// Client creates bg data when this packet arrives
+	
+	clif->send(&p,sizeof(p), &sd->bl, SELF);
+}
+
+void clif_parse_bgqueue_checkstate(int fd, struct map_session_data *sd) {
+	//struct packet_bgqueue_checkstate *p = P2PTR(fd, bgqueue_checkstateType); /* TODO: bgqueue_notice_delete should use this p->bg_name */
+	if( !bg->queue_on ) return; /* temp, until feature is complete */
+	if ( sd->bg_queue.arena && sd->bg_queue.type ) {
+		sd->bg_queue.client_has_bg_data = true;
+		clif->bgqueue_update_info(sd,sd->bg_queue.arena->id,bg->id2pos(sd->bg_queue.arena->queue_id,sd->status.account_id));
+	} else
+		clif->bgqueue_notice_delete(sd, BGQND_FAIL_NOT_QUEUING,0);/* TODO: wrong response, should respond with p->bg_name not id 0 */
+}
+
+void clif_parse_bgqueue_revoke_req(int fd, struct map_session_data *sd) {
+	//struct packet_bgqueue_revoke_req *p = P2PTR(fd, bgqueue_revokereqType);
+	return;
+	//bg->queue_leave(sd, p->bg_name);
+}
+
+void clif_parse_bgqueue_battlebegin_ack(int fd, struct map_session_data *sd) {
+	//struct packet_bgqueue_battlebegin_ack *p = P2PTR(fd, bgqueue_checkstateType);
+	return;
+	//if ( p->result == 1 )
+	//	bg->queue_pc_ready(sd);
+	//else
+	//	bg->queue_leave(sd, p->bg_name);
+}
+
+void clif_bgqueue_joined(struct map_session_data *sd, int pos) {
+	struct packet_bgqueue_notify_entry p;
+	
+	p.PacketType = bgqueue_notify_entryType;
+	safestrncpy(p.name,sd->status.name,sizeof(p.name));
+	p.position = pos;
+
+	clif->send(&p,sizeof(p), &sd->bl, BG_QUEUE);
+}
+
+void clif_bgqueue_pcleft(struct map_session_data *sd) {
+	/* no idea */
+	return;
+}
+
+// Sends BG ready req to all with same bg arena/type as sd
+void clif_bgqueue_battlebegins(struct map_session_data *sd, unsigned char arena_id, enum send_target target) {
+	struct packet_bgqueue_battlebegins p;
+	
+	p.PacketType = bgqueue_battlebegins;
+	safestrncpy(p.bg_name, bg->arena[arena_id]->name, sizeof(p.bg_name));
+	safestrncpy(p.game_name, bg->arena[arena_id]->name, sizeof(p.game_name));
+	
+	clif->send(&p,sizeof(p), &sd->bl, target);
+}
+
 /*==========================================
  * Main client packet processing function
  *------------------------------------------*/
@@ -17124,6 +17250,7 @@ void clif_bc_ready(void) {
 int do_init_clif(void) {
 	const char* colors[COLOR_MAX] = { "0xFF0000", "0x00ff00", "0xffffff" };
 	int i;
+	
 	/**
 	 * Setup Color Table (saves unnecessary load of strtoul on every call)
 	 **/
@@ -17613,13 +17740,7 @@ void clif_defaults(void) {
 	/* elemental-related */ 
 	clif->elemental_info = clif_elemental_info;
 	clif->elemental_updatestatus = clif_elemental_updatestatus;
-	/* misc-handling */ 
-	clif->adopt_reply = clif_Adopt_reply;
-	clif->adopt_request = clif_Adopt_request;
-	clif->readbook = clif_readbook;
-	clif->notify_time = clif_notify_time;
-	clif->user_count = clif_user_count;
-	clif->noask_sub = clif_noask_sub;
+	/* Hercules Channel System */
 	clif->chsys_create = clif_hercules_chsys_create;
 	clif->chsys_msg = clif_hercules_chsys_msg;
 	clif->chsys_msg2 = clif_hercules_chsys_msg2;
@@ -17632,6 +17753,20 @@ void clif_defaults(void) {
 	clif->chsys_quitg = clif_hercules_chsys_quitg;
 	clif->chsys_gjoin = clif_hercules_chsys_gjoin;
 	clif->chsys_gleave = clif_hercules_chsys_gleave;
+	/* bgqueue */
+	clif->bgqueue_ack = clif_bgqueue_ack;
+	clif->bgqueue_notice_delete = clif_bgqueue_notice_delete;
+	clif->bgqueue_update_info = clif_bgqueue_update_info;
+	clif->bgqueue_joined = clif_bgqueue_joined;
+	clif->bgqueue_pcleft = clif_bgqueue_pcleft;
+	clif->bgqueue_battlebegins = clif_bgqueue_battlebegins;
+	/* misc-handling */ 
+	clif->adopt_reply = clif_Adopt_reply;
+	clif->adopt_request = clif_Adopt_request;
+	clif->readbook = clif_readbook;
+	clif->notify_time = clif_notify_time;
+	clif->user_count = clif_user_count;
+	clif->noask_sub = clif_noask_sub;
 	clif->cashshop_load = clif_cashshop_db;
 	clif->bc_ready = clif_bc_ready;
 	clif->undisguise_timer = clif_undisguise_timer;
@@ -17837,6 +17972,11 @@ void clif_defaults(void) {
 	clif->pCashShopReqTab = clif_parse_CashShopReqTab;
 	clif->pCashShopSchedule = clif_parse_CashShopSchedule;
 	clif->pCashShopBuy = clif_parse_CashShopBuy;
+	/* BGQueue */
+	clif->pBGQueueRegister = clif_parse_bgqueue_register;
+	clif->pBGQueueCheckState = clif_parse_bgqueue_checkstate;
+	clif->pBGQueueRevokeReq = clif_parse_bgqueue_revoke_req;
+	clif->pBGQueueBattleBeginAck = clif_parse_bgqueue_battlebegin_ack;
 	/*  */
 	clif->pPartyTick = clif_parse_PartyTick;
 	clif->pGuildInvite2 = clif_parse_GuildInvite2;
diff --git a/src/map/clif.h b/src/map/clif.h
index 3e3db98c1..4347ad743 100644
--- a/src/map/clif.h
+++ b/src/map/clif.h
@@ -8,6 +8,7 @@
 #include "../common/cbasetypes.h"
 #include "../common/db.h"
 #include "../common/mmo.h"
+#include "../common/socket.h"
 #include <stdarg.h>
 
 /**
@@ -42,6 +43,7 @@ struct eri;
  * Defines
  **/
 #define packet_len(cmd) packet_db[cmd].len
+#define P2PTR(fd,cmd) RFIFO2PTR(fd,packet_db[cmd].len)
 #define clif_menuskill_clear(sd) (sd)->menuskill_id = (sd)->menuskill_val = (sd)->menuskill_val2 = 0;
 #define HCHSYS_NAME_LENGTH 20
 
@@ -86,6 +88,8 @@ typedef enum send_target {
 	BG_SAMEMAP_WOS,
 	BG_AREA,
 	BG_AREA_WOS,
+	
+	BG_QUEUE,
 } send_target;
 
 typedef enum emotion_type {
@@ -365,6 +369,29 @@ enum CASH_SHOP_BUY_RESULT {
 	CSBR_UNKNOWN					= 0xb,
 };
 
+enum BATTLEGROUNDS_QUEUE_ACK {
+	BGQA_SUCCESS = 1,
+	BGQA_FAIL_QUEUING_FINISHED,
+	BGQA_FAIL_BGNAME_INVALID,
+	BGQA_FAIL_TYPE_INVALID,
+	BGQA_FAIL_PPL_OVERAMOUNT,
+	BGQA_FAIL_LEVEL_INCORRECT,
+	BGQA_DUPLICATE_REQUEST,
+	BGQA_PLEASE_RELOGIN,
+	BGQA_NOT_PARTY_GUILD_LEADER,
+	BGQA_FAIL_CLASS_INVALID,
+	/* not official way to respond (gotta find packet?) */
+	BGQA_FAIL_DESERTER,
+	BGQA_FAIL_COOLDOWN,
+	BGQA_FAIL_TEAM_COUNT,
+};
+
+enum BATTLEGROUNDS_QUEUE_NOTICE_DELETED {
+	BGQND_CLOSEWINDOW = 1,
+	BGQND_FAIL_BGNAME_WRONG = 3,
+	BGQND_FAIL_NOT_QUEUING = 11,
+};
+
 /**
  * Structures
  **/
@@ -499,7 +526,7 @@ struct clif_interface {
 	/* main unit spawn */
 	int (*spawn) (struct block_list *bl);
 	/* map-related */
-	void (*changemap) (struct map_session_data *sd, short map, int x, int y);
+	void (*changemap) (struct map_session_data *sd, short m, int x, int y);
 	void (*changemapcell) (int fd, int16 m, int x, int y, int type, enum send_target target);
 	void (*map_property) (struct map_session_data* sd, enum map_property property);
 	void (*pvpset) (struct map_session_data *sd, int pvprank, int pvpnum,int type);
@@ -860,6 +887,13 @@ struct clif_interface {
 	/* elemental-related */
 	void (*elemental_info) (struct map_session_data *sd);
 	void (*elemental_updatestatus) (struct map_session_data *sd, int type);
+	/* bgqueue */
+	void (*bgqueue_ack) (struct map_session_data *sd, enum BATTLEGROUNDS_QUEUE_ACK response, unsigned char arena_id);
+	void (*bgqueue_notice_delete) (struct map_session_data *sd, enum BATTLEGROUNDS_QUEUE_NOTICE_DELETED response, unsigned char arena_id);
+	void (*bgqueue_update_info) (struct map_session_data *sd, unsigned char arena_id, int position);
+	void (*bgqueue_joined) (struct map_session_data *sd, int pos);
+	void (*bgqueue_pcleft) (struct map_session_data *sd);
+	void (*bgqueue_battlebegins) (struct map_session_data *sd, unsigned char arena_id, enum send_target target);
 	/* misc-handling */
 	void (*adopt_reply) (struct map_session_data *sd, int type);
 	void (*adopt_request) (struct map_session_data *sd, struct map_session_data *src, int p_id);
@@ -1078,6 +1112,11 @@ struct clif_interface {
 	void (*pSkillSelectMenu) (int fd, struct map_session_data *sd);
 	void (*pMoveItem) (int fd, struct map_session_data *sd);
 	void (*pDull) (int fd, struct map_session_data *sd);
+	/* BGQueue */
+	void (*pBGQueueRegister) (int fd, struct map_session_data *sd);
+	void (*pBGQueueCheckState) (int fd, struct map_session_data *sd);
+	void (*pBGQueueRevokeReq) (int fd, struct map_session_data *sd);
+	void (*pBGQueueBattleBeginAck) (int fd, struct map_session_data *sd);
 	/* RagExe Cash Shop [Ind/Hercules] */
 	void (*pCashShopOpen) (int fd, struct map_session_data *sd);
 	void (*pCashShopClose) (int fd, struct map_session_data *sd);
diff --git a/src/map/guild.c b/src/map/guild.c
index b83f05f00..a6c873861 100644
--- a/src/map/guild.c
+++ b/src/map/guild.c
@@ -24,6 +24,7 @@
 #include "clif.h"
 #include "skill.h"
 #include "log.h"
+#include "instance.h"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -503,6 +504,8 @@ int guild_recv_info(struct guild *sg) {
 	if((g = (struct guild*)idb_get(guild_db,sg->guild_id))==NULL) {
 		guild_new = true;
 		g=(struct guild *)aCalloc(1,sizeof(struct guild));
+		g->instance = NULL;
+		g->instances = 0;
 		idb_put(guild_db,sg->guild_id,g);
 		if( hChSys.ally ) {
 			struct hChSysCh *channel;
@@ -926,7 +929,8 @@ int guild_member_withdraw(int guild_id, int account_id, int char_id, int flag, c
 		sd->status.guild_id = 0;
 		sd->guild = NULL;
 		sd->guild_emblem_id = 0;
-		
+		if( g->instances )
+			instance->check_kick(sd);
 		clif->charnameupdate(sd); //Update display name [Skotlex]
 		//TODO: send emblem update to self and people around
 	}
@@ -2211,6 +2215,10 @@ void do_final_guild(void) {
 	for( g = dbi_first(iter); dbi_exists(iter); g = dbi_next(iter) ) {
 		if( g->channel != NULL )
 			clif->chsys_delete((struct hChSysCh *)g->channel);
+		if( g->instance != NULL ) {
+			aFree(g->instance);
+			g->instance = NULL;
+		}
 	}
 	
 	dbi_destroy(iter);
diff --git a/src/map/instance.c b/src/map/instance.c
index 8ddde8b3e..7b3e2e800 100644
--- a/src/map/instance.c
+++ b/src/map/instance.c
@@ -1,5 +1,6 @@
-// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
-// For more information, see LICENCE in the main folder
+// Copyright (c) Hercules Dev Team, licensed under GNU GPL.
+// See the LICENSE file
+// Portions Copyright (c) Athena Dev Teams
 
 #include "../common/cbasetypes.h"
 #include "../common/socket.h"
@@ -24,20 +25,13 @@
 #include <stdarg.h>
 #include <time.h>
 
-int instance_start = 0; // To keep the last index + 1 of normal map inserted in the map[ARRAY]
-struct s_instance instance[MAX_INSTANCE];
-
-
 /// Checks whether given instance id is valid or not.
-static bool instance_is_valid(int instance_id)
-{
-	if( instance_id < 1 || instance_id >= ARRAYLENGTH(instance) )
-	{// out of range
+bool instance_is_valid(int instance_id) {
+	if( instance_id < 0 || instance_id >= instance->instances ) {// out of range
 		return false;
 	}
 
-	if( instance[instance_id].state == INSTANCE_FREE )
-	{// uninitialized/freed instance slot
+	if( instances[instance_id].state == INSTANCE_FREE ) {// uninitialized/freed instance slot
 		return false;
 	}
 
@@ -48,56 +42,104 @@ static bool instance_is_valid(int instance_id)
 /*--------------------------------------
  * name : instance name
  * Return value could be
- * -4 = already exists | -3 = no free instances | -2 = party not found | -1 = invalid type
+ * -4 = already exists | -3 = no free instances | -2 = owner not found | -1 = invalid type
  * On success return instance_id
  *--------------------------------------*/
-int instance_create(int party_id, const char *name)
-{
-	int i;
-	struct party_data* p;
-
-	if( ( p = party_search(party_id) ) == NULL )
-	{
-		ShowError("instance_create: party %d not found for instance '%s'.\n", party_id, name);
-		return -2;
+int instance_create(int owner_id, const char *name, enum instance_owner_type type) {
+	unsigned short *iptr = NULL, *icptr = NULL;
+	struct map_session_data *sd = NULL;
+	struct party_data *p = NULL;
+	struct guild *g = NULL;
+	int i, j;
+	
+	switch ( type ) {
+		case IOT_NONE:
+			break;
+		case IOT_CHAR:
+			if( ( sd = map_id2sd(owner_id) ) == NULL ) {
+				ShowError("instance_create: character %d not found for instance '%s'.\n", owner_id, name);
+				return -2;
+			}
+			iptr = sd->instance;
+			icptr = &sd->instances;
+			break;
+		case IOT_PARTY:
+			if( ( p = party_search(owner_id) ) == NULL ) {
+				ShowError("instance_create: party %d not found for instance '%s'.\n", owner_id, name);
+				return -2;
+			}
+			iptr = p->instance;
+			icptr = &p->instances;
+			break;
+		case IOT_GUILD:
+			if( ( g = guild->search(owner_id) ) == NULL ) {
+				ShowError("instance_create: guild %d not found for instance '%s'.\n", owner_id, name);
+				return -2;
+			}
+			iptr = g->instance;
+			icptr = &g->instances;
+			break;
+		default:
+			ShowError("instance_create: unknown type %d for owner_id %d and name %s.\n", type,owner_id,name);
+			return -1;
 	}
-
-	if( p->instance_id )
-		return -4; // Party already instancing
-
-	// Searching a Free Instance
-	// 0 is ignored as this mean "no instance" on maps
-	ARR_FIND(1, MAX_INSTANCE, i, instance[i].state == INSTANCE_FREE);
-	if( i == MAX_INSTANCE )
-	{
-		ShowError("instance_create: no free instances, consider increasing MAX_INSTANCE.\n");
-		return -3;
+	
+	if( type != IOT_NONE && *icptr ) {
+		ARR_FIND(0, *icptr, i, strcmp(instances[iptr[i]].name,name) == 0 );
+		if( i != *icptr )
+			return -4;/* already got this instance */
 	}
-
-	instance[i].state = INSTANCE_IDLE;
-	instance[i].instance_id = i;
-	instance[i].idle_timer = INVALID_TIMER;
-	instance[i].idle_timeout = instance[i].idle_timeoutval = 0;
-	instance[i].progress_timer = INVALID_TIMER;
-	instance[i].progress_timeout = 0;
-	instance[i].users = 0;
-	instance[i].party_id = party_id;
-	instance[i].vars = idb_alloc(DB_OPT_RELEASE_DATA);
-
-	safestrncpy( instance[i].name, name, sizeof(instance[i].name) );
-	memset( instance[i].map, 0x00, sizeof(instance[i].map) );
-	p->instance_id = i;
-
+		
+	ARR_FIND(0, instance->instances, i, instances[i].state == INSTANCE_FREE);
+	
+	if( i == instance->instances )
+		RECREATE(instances, struct instance_data, ++instance->instances);
+
+	instances[i].state = INSTANCE_IDLE;
+	instances[i].id = i;
+	instances[i].idle_timer = INVALID_TIMER;
+	instances[i].idle_timeout = instances[i].idle_timeoutval = 0;
+	instances[i].progress_timer = INVALID_TIMER;
+	instances[i].progress_timeout = 0;
+	instances[i].users = 0;
+	instances[i].map = NULL;
+	instances[i].num_map = 0;
+	instances[i].owner_id = owner_id;
+	instances[i].owner_type = type;
+	instances[i].vars = idb_alloc(DB_OPT_RELEASE_DATA);
+
+	safestrncpy( instances[i].name, name, sizeof(instances[i].name) );
+	instances[i].map = NULL;
+	
+	if( type != IOT_NONE ) {
+		ARR_FIND(0, *icptr, j, iptr[j] == 0);
+		if( j == *icptr ) {
+			switch( type ) {
+				case IOT_CHAR:
+					RECREATE(sd->instance, unsigned short, ++*icptr);
+					sd->instance[sd->instances-1] = i;
+					break;
+				case IOT_PARTY:
+					RECREATE(p->instance, unsigned short, ++*icptr);
+					p->instance[p->instances-1] = i;
+					break;
+				case IOT_GUILD:
+					RECREATE(g->instance, unsigned short, ++*icptr);
+					g->instance[g->instances-1] = i;
+					break;
+			}
+		} else
+			iptr[j] = i;
+	}
+	
 	clif->instance(i, 1, 0); // Start instancing window
-	ShowInfo("[Instance] Created: %s.\n", name);
 	return i;
 }
 
 /*--------------------------------------
  * Add a map to the instance using src map "name"
  *--------------------------------------*/
-int instance_add_map(const char *name, int instance_id, bool usebasename)
-{
+int instance_add_map(const char *name, int instance_id, bool usebasename, const char *map_name) {
 	int16 m = map_mapname2mapid(name);
 	int i, im = -1;
 	size_t num_cell, size;
@@ -105,42 +147,49 @@ int instance_add_map(const char *name, int instance_id, bool usebasename)
 	if( m < 0 )
 		return -1; // source map not found
 
-	if( !instance_is_valid(instance_id) )
-	{
+	if( !instance->valid(instance_id) ) {
 		ShowError("instance_add_map: trying to attach '%s' map to non-existing instance %d.\n", name, instance_id);
 		return -1;
 	}
-	if( instance[instance_id].num_map >= MAX_MAP_PER_INSTANCE )
-	{
-		ShowError("instance_add_map: trying to add '%s' map to instance %d (%s) failed. Please increase MAX_MAP_PER_INSTANCE.\n", name, instance_id, instance[instance_id].name);
+	
+	if( map_name != NULL && strdb_iget(mapindex_db, map_name) ) {
+		ShowError("instance_add_map: trying to create instanced map with existent name '%s'\n", map_name);
 		return -2;
 	}
-	if( map[m].instance_id != 0 )
-	{ // Source map already belong to a Instance.
+	
+	if( map[m].instance_id >= 0 ) { // Source map already belong to a Instance.
 		ShowError("instance_add_map: trying to instance already instanced map %s.\n", name);
 		return -4;
 	}
-
-	ARR_FIND( instance_start, map_num, i, !map[i].name[0] ); // Searching for a Free Map
-	if( i < map_num ) im = i; // Unused map found (old instance)
-	else if( map_num - 1 >= MAX_MAP_PER_SERVER )
-	{ // No more free maps
-		ShowError("instance_add_map: no more free space to create maps on this server.\n");
-		return -5;
+	
+	ARR_FIND( instance->start_id, map_num, i, !map[i].name[0] ); // Searching for a Free Map
+
+	if( i < map_num )
+		im = i; // Unused map found (old instance)
+	else {
+		im = map_num; // Using next map index
+		RECREATE(map,struct map_data,++map_num);
 	}
-	else im = map_num++; // Using next map index
+	
+	if( map[m].cell == (struct mapcell *)0xdeadbeaf )
+		map_cellfromcache(&map[m]);
 
 	memcpy( &map[im], &map[m], sizeof(struct map_data) ); // Copy source map
-	snprintf(map[im].name, MAP_NAME_LENGTH, (usebasename ? "%.3d#%s" : "%.3d%s"), instance_id, name); // Generate Name for Instance Map
+	if( map_name != NULL ) {
+		snprintf(map[im].name, MAP_NAME_LENGTH, "%s", map_name);
+		map[im].cName = map[m].name;
+	} else
+		snprintf(map[im].name, MAP_NAME_LENGTH, (usebasename ? "%.3d#%s" : "%.3d%s"), instance_id, name); // Generate Name for Instance Map
 	map[im].index = mapindex_addmap(-1, map[im].name); // Add map index
 
-	if( !map[im].index )
-	{
+	map[im].channel = NULL;
+	
+	if( !map[im].index ) {
 		map[im].name[0] = '\0';
 		ShowError("instance_add_map: no more free map indexes.\n");
 		return -3; // No free map index
 	}
-
+	
 	// Reallocate cells
 	num_cell = map[im].xs * map[im].ys;
 	CREATE( map[im].cell, struct mapcell, num_cell );
@@ -161,9 +210,11 @@ int instance_add_map(const char *name, int instance_id, bool usebasename)
 	map[im].instance_src_map = m;
 	map[m].flag.src4instance = 1; // Flag this map as a src map for instances
 
-	instance[instance_id].map[instance[instance_id].num_map++] = im; // Attach to actual instance
-	map_addmap2db(&map[im]);
+	RECREATE(instances[instance_id].map, unsigned short, ++instances[instance_id].num_map);
 
+	instances[instance_id].map[instances[instance_id].num_map - 1] = im; // Attach to actual instance
+	map_addmap2db(&map[im]);
+	
 	return im;
 }
 
@@ -172,19 +223,16 @@ int instance_add_map(const char *name, int instance_id, bool usebasename)
  * party_id : source party of this instance
  * type : result (0 = map id | 1 = instance id)
  *--------------------------------------*/
-int instance_map2imap(int16 m, int instance_id)
-{
+int instance_map2imap(int16 m, int instance_id) {
  	int i;
 
-	if( !instance_is_valid(instance_id) )
-	{
+	if( !instance->valid(instance_id) ) {
 		return -1;
 	}
 
-	for( i = 0; i < instance[instance_id].num_map; i++ )
- 	{
-		if( instance[instance_id].map[i] && map[instance[instance_id].map[i]].instance_src_map == m )
-			return instance[instance_id].map[i];
+	for( i = 0; i < instances[instance_id].num_map; i++ ) {
+		if( instances[instance_id].map[i] && map[instances[instance_id].map[i]].instance_src_map == m )
+			return instances[instance_id].map[i];
  	}
  	return -1;
 }
@@ -194,59 +242,56 @@ int instance_map2imap(int16 m, int instance_id)
  * instance_id : where to search
  * result : mapid of map "m" in this instance
  *--------------------------------------*/
-int instance_mapid2imapid(int16 m, int instance_id)
-{
+int instance_mapid2imapid(int16 m, int instance_id) {
 	if( map[m].flag.src4instance == 0 )
 		return m; // not instances found for this map
-	else if( map[m].instance_id )
-	{ // This map is a instance, not a src map instance
+	else if( map[m].instance_id >= 0 ) { // This map is a instance, not a src map instance
 		ShowError("map_instance_mapid2imapid: already instanced (%d / %d)\n", m, instance_id);
 		return -1;
 	}
 
-	if( !instance_is_valid(instance_id) )
+	if( !instance->valid(instance_id) )
 		return -1;
 
-	return instance_map2imap(m, instance_id);
+	return instance->map2imap(m, instance_id);
 }
 
 /*--------------------------------------
  * map_instance_map_npcsub
  * Used on Init instance. Duplicates each script on source map
  *--------------------------------------*/
-int instance_map_npcsub(struct block_list* bl, va_list args)
-{
+int instance_map_npcsub(struct block_list* bl, va_list args) {
 	struct npc_data* nd = (struct npc_data*)bl;
 	int16 m = va_arg(args, int); // Destination Map
 
-	npc_duplicate4instance(nd, m);
+	if ( npc_duplicate4instance(nd, m) )
+		ShowDebug("instance_map_npcsub:npc_duplicate4instance failed (%s/%d)\n",nd->name,m);
+
 	return 1;
 }
 
 /*--------------------------------------
  * Init all map on the instance. Npcs are created here
  *--------------------------------------*/
-void instance_init(int instance_id)
-{
+void instance_init(int instance_id) {
 	int i;
 
-	if( !instance_is_valid(instance_id) )
+	if( !instance->valid(instance_id) )
 		return; // nothing to do
 
-	for( i = 0; i < instance[instance_id].num_map; i++ )
-		map_foreachinmap(instance_map_npcsub, map[instance[instance_id].map[i]].instance_src_map, BL_NPC, instance[instance_id].map[i]);
+	for( i = 0; i < instances[instance_id].num_map; i++ )
+		map_foreachinmap(instance_map_npcsub, map[instances[instance_id].map[i]].instance_src_map, BL_NPC, instances[instance_id].map[i]);
 
-	instance[instance_id].state = INSTANCE_BUSY;
-	ShowInfo("[Instance] Initialized %s.\n", instance[instance_id].name);
+	instances[instance_id].state = INSTANCE_BUSY;
 }
 
 /*--------------------------------------
  * Used on instance deleting process.
  * Warps all players on each instance map to its save points.
  *--------------------------------------*/
-int instance_del_load(struct map_session_data* sd, va_list args)
-{
+int instance_del_load(struct map_session_data* sd, va_list args) {
 	int16 m = va_arg(args,int);
+	
 	if( !sd || sd->bl.m != m )
 		return 0;
 
@@ -285,12 +330,11 @@ int instance_cleanup_sub(struct block_list *bl, va_list ap) {
 /*--------------------------------------
  * Removes a simple instance map
  *--------------------------------------*/
-void instance_del_map(int16 m)
-{
+void instance_del_map(int16 m) {
 	int i;
-	if( m <= 0 || !map[m].instance_id )
-	{
-		ShowError("Tried to remove non-existing instance map (%d)\n", m);
+	
+	if( m <= 0 || map[m].instance_id == -1 ) {
+		ShowError("instance_del_map: tried to remove non-existing instance map (%d)\n", m);
 		return;
 	}
 
@@ -299,116 +343,145 @@ void instance_del_map(int16 m)
 
 	if( map[m].mob_delete_timer != INVALID_TIMER )
 		delete_timer(map[m].mob_delete_timer, map_removemobs_timer);
-
+	
 	mapindex_removemap( map[m].index );
 
 	// Free memory
 	aFree(map[m].cell);
 	aFree(map[m].block);
 	aFree(map[m].block_mob);
-
+	
 	// Remove from instance
-	for( i = 0; i < instance[map[m].instance_id].num_map; i++ )
-	{
-		if( instance[map[m].instance_id].map[i] == m )
-		{
-			instance[map[m].instance_id].num_map--;
-			for( ; i < instance[map[m].instance_id].num_map; i++ )
-				instance[map[m].instance_id].map[i] = instance[map[m].instance_id].map[i+1];
+	for( i = 0; i < instances[map[m].instance_id].num_map; i++ ) {
+		if( instances[map[m].instance_id].map[i] == m ) {
+			instances[map[m].instance_id].num_map--;
+			for( ; i < instances[map[m].instance_id].num_map; i++ )
+				instances[map[m].instance_id].map[i] = instances[map[m].instance_id].map[i+1];
 			i = -1;
 			break;
 		}
 	}
-	if( i == instance[map[m].instance_id].num_map )
-		ShowError("map_instance_del: failed to remove %s from instance list (%s): %d\n", map[m].name, instance[map[m].instance_id].name, m);
+	
+	if( i == instances[map[m].instance_id].num_map )
+		ShowError("map_instance_del: failed to remove %s from instance list (%s): %d\n", map[m].name, instances[map[m].instance_id].name, m);
+	
+	if( map[m].channel )
+		clif->chsys_delete(map[m].channel);
 
 	map_removemapdb(&map[m]);
 	memset(&map[m], 0x00, sizeof(map[0]));
-
-	/* for it is default and makes it not try to delete a non-existent timer since we did not delete this entry. */
+	map[m].instance_id = -1;
 	map[m].mob_delete_timer = INVALID_TIMER;
 }
 
 /*--------------------------------------
  * Timer to destroy instance by process or idle
  *--------------------------------------*/
-int instance_destroy_timer(int tid, unsigned int tick, int id, intptr_t data)
-{
-	instance_destroy(id);
+int instance_destroy_timer(int tid, unsigned int tick, int id, intptr_t data) {
+	instance->destroy(id);
 	return 0;
 }
 
 /*--------------------------------------
  * Removes a instance, all its maps and npcs.
  *--------------------------------------*/
-void instance_destroy(int instance_id)
-{
-	int last = 0, type;
-	struct party_data *p;
-	time_t now = time(NULL);
-
-	if( !instance_is_valid(instance_id) )
+void instance_destroy(int instance_id) {
+	unsigned short *iptr = NULL, *icptr = NULL;
+	struct map_session_data *sd = NULL;
+	struct party_data *p = NULL;
+	struct guild *g = NULL;
+	int last = 0, type, j;
+	unsigned int now = (unsigned int)time(NULL);
+
+	if( !instance->valid(instance_id) )
 		return; // nothing to do
 
-	if( instance[instance_id].progress_timeout && instance[instance_id].progress_timeout <= now )
+	if( instances[instance_id].progress_timeout && instances[instance_id].progress_timeout <= now )
 		type = 1;
-	else if( instance[instance_id].idle_timeout && instance[instance_id].idle_timeout <= now )
+	else if( instances[instance_id].idle_timeout && instances[instance_id].idle_timeout <= now )
 		type = 2;
 	else
 		type = 3;
 
 	clif->instance(instance_id, 5, type); // Report users this instance has been destroyed
 
-	while( instance[instance_id].num_map && last != instance[instance_id].map[0] )
-	{ // Remove all maps from instance
-		last = instance[instance_id].map[0];
-		instance_del_map( instance[instance_id].map[0] );
+	switch ( instances[instance_id].owner_type ) {
+		case IOT_NONE:
+			break;
+		case IOT_CHAR:
+			if( ( sd = map_id2sd(instances[instance_id].owner_id) ) == NULL ) {
+				break;
+			}
+			iptr = sd->instance;
+			icptr = &sd->instances;
+			break;
+		case IOT_PARTY:
+			if( ( p = party_search(instances[instance_id].owner_id) ) == NULL ) {
+				break;
+			}
+			iptr = p->instance;
+			icptr = &p->instances;
+			break;
+		case IOT_GUILD:
+			if( ( g = guild->search(instances[instance_id].owner_id) ) == NULL ) {
+				break;
+			}
+			iptr = g->instance;
+			icptr = &g->instances;
+			break;
+		default:
+			ShowError("instance_destroy: unknown type %d for owner_id %d and name %s.\n", instances[instance_id].owner_type,instances[instance_id].owner_id,instances[instance_id].name);
+			break;
+	}
+	
+	if( iptr != NULL ) {
+		ARR_FIND(0, *icptr, j, iptr[j] == instance_id);
+		if( j != *icptr )
+			iptr[j] = 0;
+	}
+	
+	while( instances[instance_id].num_map && last != instances[instance_id].map[0] ) { // Remove all maps from instance
+		last = instances[instance_id].map[0];
+		instance->del_map( instances[instance_id].map[0] );
 	}
 
-	if( instance[instance_id].vars )
-		db_destroy(instance[instance_id].vars);
-
-	if( instance[instance_id].progress_timer != INVALID_TIMER )
-		delete_timer( instance[instance_id].progress_timer, instance_destroy_timer);
-	if( instance[instance_id].idle_timer != INVALID_TIMER )
-		delete_timer( instance[instance_id].idle_timer, instance_destroy_timer);
+	if( instances[instance_id].vars )
+		db_destroy(instances[instance_id].vars);
 
-	instance[instance_id].vars = NULL;
+	if( instances[instance_id].progress_timer != INVALID_TIMER )
+		delete_timer( instances[instance_id].progress_timer, instance_destroy_timer);
+	if( instances[instance_id].idle_timer != INVALID_TIMER )
+		delete_timer( instances[instance_id].idle_timer, instance_destroy_timer);
 
-	if( instance[instance_id].party_id && (p = party_search(instance[instance_id].party_id)) != NULL )
-		p->instance_id = 0; // Update Party information
+	instances[instance_id].vars = NULL;
 
-	ShowInfo("[Instance] Destroyed %s.\n", instance[instance_id].name);
-	memset( &instance[instance_id], 0x00, sizeof(instance[0]) );
+	aFree(instances[instance_id].map);
+	
+	memset( &instances[instance_id], 0x00, sizeof(struct instance_data) );
 
-	instance[instance_id].state = INSTANCE_FREE;
 }
 
 /*--------------------------------------
  * Checks if there are users in the instance or not to start idle timer
  *--------------------------------------*/
-void instance_check_idle(int instance_id)
-{
+void instance_check_idle(int instance_id) {
 	bool idle = true;
-	time_t now = time(NULL);
+	unsigned int now = (unsigned int)time(NULL);
 
-	if( !instance_is_valid(instance_id) || instance[instance_id].idle_timeoutval == 0 )
+	if( !instance->valid(instance_id) || instances[instance_id].idle_timeoutval == 0 )
 		return;
 
-	if( instance[instance_id].users )
+	if( instances[instance_id].users )
 		idle = false;
 
-	if( instance[instance_id].idle_timer != INVALID_TIMER && !idle )
-	{
-		delete_timer(instance[instance_id].idle_timer, instance_destroy_timer);
-		instance[instance_id].idle_timer = INVALID_TIMER;
-		instance[instance_id].idle_timeout = 0;
+	if( instances[instance_id].idle_timer != INVALID_TIMER && !idle ) {
+		delete_timer(instances[instance_id].idle_timer, instance_destroy_timer);
+		instances[instance_id].idle_timer = INVALID_TIMER;
+		instances[instance_id].idle_timeout = 0;
 		clif->instance(instance_id, 3, 0); // Notify instance users normal instance expiration
-	}
-	else if( instance[instance_id].idle_timer == INVALID_TIMER && idle )
-	{
-		instance[instance_id].idle_timeout = now + instance[instance_id].idle_timeoutval;
-		instance[instance_id].idle_timer = add_timer( gettick() + (unsigned int)instance[instance_id].idle_timeoutval * 1000, instance_destroy_timer, instance_id, 0);
+	} else if( instances[instance_id].idle_timer == INVALID_TIMER && idle ) {
+		instances[instance_id].idle_timeout = now + instances[instance_id].idle_timeoutval;
+		instances[instance_id].idle_timer = add_timer( gettick() + instances[instance_id].idle_timeoutval * 1000, instance_destroy_timer, instance_id, 0);
 		clif->instance(instance_id, 4, 0); // Notify instance users it will be destroyed of no user join it again in "X" time
 	}
 }
@@ -418,54 +491,46 @@ void instance_check_idle(int instance_id)
  *--------------------------------------*/
 void instance_set_timeout(int instance_id, unsigned int progress_timeout, unsigned int idle_timeout)
 {
-	time_t now = time(0);
+	unsigned int now = time(0);
 
-	if( !instance_is_valid(instance_id) )
+	if( !instance->valid(instance_id) )
 		return;
 
-	if( instance[instance_id].progress_timer != INVALID_TIMER )
-		delete_timer( instance[instance_id].progress_timer, instance_destroy_timer);
-	if( instance[instance_id].idle_timer != INVALID_TIMER )
-		delete_timer( instance[instance_id].idle_timer, instance_destroy_timer);
-
-	if( progress_timeout )
-	{
-		instance[instance_id].progress_timeout = now + progress_timeout;
-		instance[instance_id].progress_timer = add_timer( gettick() + progress_timeout * 1000, instance_destroy_timer, instance_id, 0);
-	}
-	else
-	{
-		instance[instance_id].progress_timeout = 0;
-		instance[instance_id].progress_timer = INVALID_TIMER;
+	if( instances[instance_id].progress_timer != INVALID_TIMER )
+		delete_timer( instances[instance_id].progress_timer, instance_destroy_timer);
+	if( instances[instance_id].idle_timer != INVALID_TIMER )
+		delete_timer( instances[instance_id].idle_timer, instance_destroy_timer);
+
+	if( progress_timeout ) {
+		instances[instance_id].progress_timeout = now + progress_timeout;
+		instances[instance_id].progress_timer = add_timer( gettick() + progress_timeout * 1000, instance_destroy_timer, instance_id, 0);
+	} else {
+		instances[instance_id].progress_timeout = 0;
+		instances[instance_id].progress_timer = INVALID_TIMER;
 	}
 
-	if( idle_timeout )
-	{
-		instance[instance_id].idle_timeoutval = idle_timeout;
-		instance[instance_id].idle_timer = INVALID_TIMER;
+	if( idle_timeout ) {
+		instances[instance_id].idle_timeoutval = idle_timeout;
+		instances[instance_id].idle_timer = INVALID_TIMER;
 		instance_check_idle(instance_id);
-	}
-	else
-	{
-		instance[instance_id].idle_timeoutval = 0;
-		instance[instance_id].idle_timeout = 0;
-		instance[instance_id].idle_timer = INVALID_TIMER;
+	} else {
+		instances[instance_id].idle_timeoutval = 0;
+		instances[instance_id].idle_timeout = 0;
+		instances[instance_id].idle_timer = INVALID_TIMER;
 	}
 
-	if( instance[instance_id].idle_timer == INVALID_TIMER && instance[instance_id].progress_timer != INVALID_TIMER )
+	if( instances[instance_id].idle_timer == INVALID_TIMER && instances[instance_id].progress_timer != INVALID_TIMER )
 		clif->instance(instance_id, 3, 0);
 }
 
 /*--------------------------------------
  * Checks if sd in on a instance and should be kicked from it
  *--------------------------------------*/
-void instance_check_kick(struct map_session_data *sd)
-{
+void instance_check_kick(struct map_session_data *sd) {
 	int16 m = sd->bl.m;
 
 	clif->instance_leave(sd->fd);
-	if( map[m].instance_id )
-	{ // User was on the instance map
+	if( map[m].instance_id >= 0 ) { // User was on the instance map
 		if( map[m].save.map )
 			pc_setpos(sd, map[m].save.map, map[m].save.x, map[m].save.y, CLR_TELEPORT);
 		else
@@ -473,16 +538,41 @@ void instance_check_kick(struct map_session_data *sd)
 	}
 }
 
-void do_final_instance(void)
-{
+void do_final_instance(void) {
 	int i;
 
-	for( i = 1; i < MAX_INSTANCE; i++ )
+	for(i = 0; i < instance->instances; i++) {
 		instance_destroy(i);
+	}
+	
+	aFree(instances);
 }
 
-void do_init_instance(void)
-{
-	memset(instance, 0x00, sizeof(instance));
+void do_init_instance(void) {
 	add_timer_func_list(instance_destroy_timer, "instance_destroy_timer");
 }
+
+void instance_defaults(void) {
+	instance = &instance_s;
+	
+	instance->init = do_init_instance;
+	instance->final = do_final_instance;
+	
+	/* start point */
+	instance->start_id = 0;
+	/* count */
+	instance->instances = 0;
+	
+	/* */
+	instance->create = instance_create;
+	instance->add_map = instance_add_map;
+	instance->del_map = instance_del_map;
+	instance->map2imap = instance_map2imap;
+	instance->mapid2imapid = instance_mapid2imapid;
+	instance->destroy = instance_destroy;
+	instance->start = instance_init;
+	instance->check_idle = instance_check_idle;
+	instance->check_kick = instance_check_kick;
+	instance->set_timeout = instance_set_timeout;
+	instance->valid = instance_is_valid;
+}
diff --git a/src/map/instance.h b/src/map/instance.h
index 03b0d0898..e86586e44 100644
--- a/src/map/instance.h
+++ b/src/map/instance.h
@@ -1,51 +1,71 @@
-// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
-// For more information, see LICENCE in the main folder
+// Copyright (c) Hercules Dev Team, licensed under GNU GPL.
+// See the LICENSE file
+// Portions Copyright (c) Athena Dev Teams
 
 #ifndef _INSTANCE_H_
 #define _INSTANCE_H_
 
-#define MAX_MAP_PER_INSTANCE 10
-#define MAX_INSTANCE 500
-
 #define INSTANCE_NAME_LENGTH (60+1)
 
-typedef enum instance_state { INSTANCE_FREE, INSTANCE_IDLE, INSTANCE_BUSY } instance_state;
+typedef enum instance_state {
+	INSTANCE_FREE,
+	INSTANCE_IDLE,
+	INSTANCE_BUSY
+} instance_state;
+
+enum instance_owner_type {
+	IOT_NONE,
+	IOT_CHAR,
+	IOT_PARTY,
+	IOT_GUILD,
+	/* ... */
+	IOT_MAX,
+};
 
-struct s_instance {
+struct instance_data {
+	unsigned short id;
 	char name[INSTANCE_NAME_LENGTH]; // Instance Name - required for clif functions.
 	instance_state state;
-	short instance_id;
-	int party_id;
+	enum instance_owner_type owner_type;
+	int owner_id;
 
-	int map[MAX_MAP_PER_INSTANCE];
-	int num_map;
-	int users;
+	unsigned short *map;
+	unsigned short num_map;
+	unsigned short users;
 
 	struct DBMap* vars; // Instance Variable for scripts
 
 	int progress_timer;
-	time_t progress_timeout;
+	unsigned int progress_timeout;
 
 	int idle_timer;
-	time_t idle_timeout, idle_timeoutval;
+	unsigned int idle_timeout, idle_timeoutval;
 };
 
-extern int instance_start;
-extern struct s_instance instance[MAX_INSTANCE];
+struct instance_data *instances;
 
-int instance_create(int party_id, const char *name);
-int instance_add_map(const char *name, int instance_id, bool usebasename);
-void instance_del_map(int16 m);
-int instance_map2imap(int16 m, int instance_id);
-int instance_mapid2imapid(int16 m, int instance_id);
-void instance_destroy(int instance_id);
-void instance_init(int instance_id);
+struct instance_interface {
+	void (*init) (void);
+	void (*final) (void);
+	/* start point */
+	unsigned short start_id;
+	unsigned short instances;
+	/* */
+	int (*create) (int party_id, const char *name, enum instance_owner_type type);
+	int (*add_map) (const char *name, int instance_id, bool usebasename, const char *map_name);
+	void (*del_map) (int16 m);
+	int (*map2imap) (int16 m, int instance_id);
+	int (*mapid2imapid) (int16 m, int instance_id);
+	void (*destroy) (int instance_id);
+	void (*start) (int instance_id);
+	void (*check_idle) (int instance_id);
+	void (*check_kick) (struct map_session_data *sd);
+	void (*set_timeout) (int instance_id, unsigned int progress_timeout, unsigned int idle_timeout);
+	bool (*valid) (int instance_id);
+} instance_s;
 
-void instance_check_idle(int instance_id);
-void instance_check_kick(struct map_session_data *sd);
-void instance_set_timeout(int instance_id, unsigned int progress_timeout, unsigned int idle_timeout);
+struct instance_interface *instance;
 
-void do_final_instance(void);
-void do_init_instance(void);
+void instance_defaults(void);
 
 #endif
diff --git a/src/map/intif.c b/src/map/intif.c
index 93bb8add7..9e6403f10 100644
--- a/src/map/intif.c
+++ b/src/map/intif.c
@@ -467,7 +467,7 @@ int intif_party_changemap(struct map_session_data *sd,int online)
 	if(!sd)
 		return 0;
 
-	if( (m=map_mapindex2mapid(sd->mapindex)) >= 0 && map[m].instance_id )
+	if( (m=map_mapindex2mapid(sd->mapindex)) >= 0 && map[m].instance_id >= 0 )
 		mapindex = map[map[m].instance_src_map].index;
 	else
 		mapindex = sd->mapindex;
diff --git a/src/map/irc-bot.c b/src/map/irc-bot.c
index 0e155011e..bfaf18af0 100644
--- a/src/map/irc-bot.c
+++ b/src/map/irc-bot.c
@@ -22,12 +22,16 @@
 char send_string[200];
 
 int irc_connect_timer(int tid, unsigned int tick, int id, intptr_t data) {
+	struct hSockOpt opt;
 	if( ircbot->isOn || ++ircbot->fails >= 3 )
 		return 0;
 	
+	opt.silent = 1;
+	opt.setTimeo = 0;
+	
 	ircbot->last_try = gettick();
 
-	if( ( ircbot->fd = make_connection(ircbot->ip,hChSys.irc_server_port,true) ) > 0 ){
+	if( ( ircbot->fd = make_connection(ircbot->ip,hChSys.irc_server_port,&opt) ) > 0 ){
 		session[ircbot->fd]->func_parse = ircbot->parse;
 		session[ircbot->fd]->flag.server = 1;
 		add_timer(gettick() + 3000, ircbot->identify_timer, 0, 0);
diff --git a/src/map/map.c b/src/map/map.c
index d4c15cd6e..54646d1c3 100644
--- a/src/map/map.c
+++ b/src/map/map.c
@@ -101,7 +101,7 @@ static DBMap* id_db=NULL; // int id -> struct block_list*
 static DBMap* pc_db=NULL; // int id -> struct map_session_data*
 static DBMap* mobid_db=NULL; // int id -> struct mob_data*
 static DBMap* bossid_db=NULL; // int id -> struct mob_data* (MVP db)
-static DBMap* map_db=NULL; // unsigned int mapindex -> struct map_data*
+static DBMap* map_db=NULL; // unsigned int mapindex -> struct map_data_other_server*
 static DBMap* nick_db=NULL; // int char_id -> struct charid2nick* (requested names of offline characters)
 static DBMap* charid_db=NULL; // int char_id -> struct map_session_data*
 static DBMap* regen_db=NULL; // int id -> struct block_list* (status_natural_heal processing)
@@ -150,6 +150,8 @@ struct map_cache_map_info {
 	int32 len;
 };
 
+uint16 index2mapid[MAX_MAPINDEX];
+
 char db_path[256] = "db";
 char help_txt[256] = "conf/help.txt";
 char help2_txt[256] = "conf/help2.txt";
@@ -162,6 +164,7 @@ int enable_grf = 0;	//To enable/disable reading maps from GRF files, bypassing m
 
 /* [Ind/Hercules] */
 struct eri *map_iterator_ers;
+char *map_cache_buffer = NULL; // Has the uncompressed gat data of all maps, so just one allocation has to be made
 
 /*==========================================
  * server player count (of all mapservers)
@@ -397,8 +400,7 @@ int map_moveblock(struct block_list *bl, int x1, int y1, unsigned int tick)
 		if (sc->data[SC_PROPERTYWALK] &&
 			sc->data[SC_PROPERTYWALK]->val3 >= skill->get_maxcount(sc->data[SC_PROPERTYWALK]->val1,sc->data[SC_PROPERTYWALK]->val2) )
 			status_change_end(bl,SC_PROPERTYWALK,INVALID_TIMER);
-	} else
-	if (bl->type == BL_NPC)
+	} else if (bl->type == BL_NPC)
 		npc_unsetcells((TBL_NPC*)bl);
 
 	if (moveblock) map_delblock(bl);
@@ -469,8 +471,7 @@ int map_moveblock(struct block_list *bl, int x1, int y1, unsigned int tick)
 					skill->unit_move_unit_group(skill->id2group(sc->data[SC_HAWKEYES]->val4), bl->m, x1-x0, y1-y0);
 			}
 		}
-	} else
-	if (bl->type == BL_NPC)
+	} else if (bl->type == BL_NPC)
 		npc_setcells((TBL_NPC*)bl);
 
 	return 0;
@@ -1194,8 +1195,7 @@ int map_foreachinpath(int (*func)(struct block_list*,va_list),int16 m,int16 x0,i
 }
 
 // Copy of map_foreachincell, but applied to the whole map. [Skotlex]
-int map_foreachinmap(int (*func)(struct block_list*,va_list), int16 m, int type,...)
-{
+int map_foreachinmap(int (*func)(struct block_list*,va_list), int16 m, int type,...) {
 	int b, bsize;
 	int returnCount = 0;  //total sum of returned values of func() [Skotlex]
 	struct block_list *bl;
@@ -1233,6 +1233,52 @@ int map_foreachinmap(int (*func)(struct block_list*,va_list), int16 m, int type,
 	bl_list_count = blockcount;
 	return returnCount;
 }
+// Copy of map_foreachinmap, but applied to all maps in a instance id. [Ind/Hercules]
+int map_foreachininstance(int (*func)(struct block_list*,va_list), int16 instance_id, int type,...) {
+	int b, bsize;
+	int returnCount = 0;  //total sum of returned values of func() [Skotlex]
+	struct block_list *bl;
+	int blockcount = bl_list_count, i, j;
+	int16 m;
+	va_list ap;
+	
+	for( j = 0; j < instances[instance_id].num_map; j++ ) {
+
+		m = instances[instance_id].map[j];
+		
+		bsize = map[ m ].bxs * map[ m ].bys;
+		
+		if( type&~BL_MOB )
+			for( b = 0; b < bsize; b++ )
+				for( bl = map[ m ].block[ b ]; bl != NULL; bl = bl->next )
+					if( bl->type&type && bl_list_count < BL_LIST_MAX )
+						bl_list[ bl_list_count++ ] = bl;
+		
+		if( type&BL_MOB )
+			for( b = 0; b < bsize; b++ )
+				for( bl = map[ m ].block_mob[ b ]; bl != NULL; bl = bl->next )
+					if( bl_list_count < BL_LIST_MAX )
+						bl_list[ bl_list_count++ ] = bl;
+		
+		if( bl_list_count >= BL_LIST_MAX )
+			ShowWarning("map_foreachininstance: block count too many!\n");
+		
+		map_freeblock_lock();
+		
+		for( i = blockcount; i < bl_list_count ; i++ )
+			if( bl_list[ i ]->prev ) { //func() may delete this bl_list[] slot, checking for prev ensures it wasnt queued for deletion.
+				va_start(ap, type);
+				returnCount += func(bl_list[ i ], ap);
+				va_end(ap);
+			}
+		
+		map_freeblock_unlock();
+		
+	}
+		
+	bl_list_count = blockcount;
+	return returnCount;
+}
 
 
 /// Generates a new flooritem object id from the interval [MIN_FLOORITEM, MAX_FLOORITEM).
@@ -1637,8 +1683,19 @@ int map_quit(struct map_session_data *sd) {
 
 	pc_itemcd_do(sd,false);
 
+	for( i = 0; i < sd->queues_count; i++ ) {
+		struct hQueue *queue;
+		if( (queue = script->queue(sd->queues[i])) && queue->onLogOut[0] != '\0' ) {
+			npc_event(sd, queue->onLogOut, 0);
+		}
+	}
+	/* two times, the npc event above may assign a new one or delete others */
+	for( i = 0; i < sd->queues_count; i++ ) {
+		script->queue_remove(sd->queues[i],sd->status.account_id);
+	}
+	
 	npc_script_event(sd, NPCE_LOGOUT);
-
+	
 	//Unit_free handles clearing the player related data,
 	//map_quit handles extra specific data which is related to quitting normally
 	//(changing map-servers invokes unit_free but bypasses map_quit)
@@ -1712,7 +1769,7 @@ int map_quit(struct map_session_data *sd) {
 		
 	unit_remove_map_pc(sd,CLR_TELEPORT);
 
-	if( map[sd->bl.m].instance_id ) { // Avoid map conflicts and warnings on next login
+	if( map[sd->bl.m].instance_id >= 0 ) { // Avoid map conflicts and warnings on next login
 		int16 m;
 		struct point *pt;
 		if( map[sd->bl.m].save.map )
@@ -1720,8 +1777,7 @@ int map_quit(struct map_session_data *sd) {
 		else
 			pt = &sd->status.save_point;
 
-		if( (m=map_mapindex2mapid(pt->map)) >= 0 )
-		{
+		if( (m=map_mapindex2mapid(pt->map)) >= 0 ) {
 			sd->bl.m = m;
 			sd->bl.x = pt->x;
 			sd->bl.y = pt->y;
@@ -2160,8 +2216,7 @@ bool mapit_exists(struct s_mapiterator* mapit)
 /*==========================================
  * Add npc-bl to id_db, basically register npc to map
  *------------------------------------------*/
-bool map_addnpc(int16 m,struct npc_data *nd)
-{
+bool map_addnpc(int16 m,struct npc_data *nd) {
 	nullpo_ret(nd);
 
 	if( m < 0 || m >= map_num )
@@ -2188,8 +2243,7 @@ int map_addmobtolist(unsigned short m, struct spawn_data *spawn)
 {
 	size_t i;
 	ARR_FIND( 0, MAX_MOB_LIST_PER_MAP, i, map[m].moblist[i] == NULL );
-	if( i < MAX_MOB_LIST_PER_MAP )
-	{
+	if( i < MAX_MOB_LIST_PER_MAP ) {
 		map[m].moblist[i] = spawn;
 		return i;
 	}
@@ -2250,13 +2304,11 @@ int map_removemobs_timer(int tid, unsigned int tick, int id, intptr_t data)
 	int count;
 	const int16 m = id;
 
-	if (m < 0 || m >= MAX_MAP_PER_SERVER)
-	{	//Incorrect map id!
+	if (m < 0 || m >= map_num) { //Incorrect map id!
 		ShowError("map_removemobs_timer error: timer %d points to invalid map %d\n",tid, m);
 		return 0;
 	}
-	if (map[m].mob_delete_timer != tid)
-	{	//Incorrect timer call!
+	if (map[m].mob_delete_timer != tid) { //Incorrect timer call!
 		ShowError("map_removemobs_timer mismatch: %d != %d (map %s)\n",map[m].mob_delete_timer, tid, map[m].name);
 		return 0;
 	}
@@ -2283,8 +2335,7 @@ void map_removemobs(int16 m)
 /*==========================================
  * Hookup, get map_id from map_name
  *------------------------------------------*/
-int16 map_mapname2mapid(const char* name)
-{
+int16 map_mapname2mapid(const char* name) {
 	unsigned short map_index;
 	map_index = mapindex_name2id(name);
 	if (!map_index)
@@ -2295,24 +2346,18 @@ int16 map_mapname2mapid(const char* name)
 /*==========================================
  * Returns the map of the given mapindex. [Skotlex]
  *------------------------------------------*/
-int16 map_mapindex2mapid(unsigned short mapindex)
-{
-	struct map_data *md=NULL;
+int16 map_mapindex2mapid(unsigned short mapindex) {
 
-	if (!mapindex)
+	if (!mapindex || mapindex > MAX_MAPINDEX)
 		return -1;
 
-	md = (struct map_data*)uidb_get(map_db,(unsigned int)mapindex);
-	if(md==NULL || md->cell==NULL)
-		return -1;
-	return md->m;
+	return index2mapid[mapindex] == 0 ? -1 : index2mapid[mapindex];
 }
 
 /*==========================================
  * Switching Ip, port ? (like changing map_server) get ip/port from map_name
  *------------------------------------------*/
-int map_mapname2ipport(unsigned short name, uint32* ip, uint16* port)
-{
+int map_mapname2ipport(unsigned short name, uint32* ip, uint16* port) {
 	struct map_data_other_server *mdos;
 
 	mdos = (struct map_data_other_server*)uidb_get(map_db,(unsigned int)name);
@@ -2443,8 +2488,7 @@ inline static struct mapcell map_gat2cell(int gat) {
 	return cell;
 }
 
-static int map_cell2gat(struct mapcell cell)
-{
+static int map_cell2gat(struct mapcell cell) {
 	if( cell.walkable == 1 && cell.shootable == 1 && cell.water == 0 ) return 0;
 	if( cell.walkable == 0 && cell.shootable == 0 && cell.water == 0 ) return 1;
 	if( cell.walkable == 1 && cell.shootable == 1 && cell.water == 1 ) return 3;
@@ -2453,17 +2497,42 @@ static int map_cell2gat(struct mapcell cell)
 	ShowWarning("map_cell2gat: cell has no matching gat type\n");
 	return 1; // default to 'wall'
 }
+int map_getcellp(struct map_data* m,int16 x,int16 y,cell_chk cellchk);
+void map_setcell(int16 m, int16 x, int16 y, cell_t cell, bool flag);
+void map_cellfromcache(struct map_data *m) {
+	char decode_buffer[MAX_MAP_SIZE];
+	struct map_cache_map_info *info = NULL;
+	
+	if( (info = (struct map_cache_map_info *)m->cellPos) ) {
+		unsigned long size, xy;
+		int i;
+		
+		size = (unsigned long)info->xs*(unsigned long)info->ys;
+		
+		// TO-DO: Maybe handle the scenario, if the decoded buffer isn't the same size as expected? [Shinryo]
+		decode_zip(decode_buffer, &size, m->cellPos+sizeof(struct map_cache_map_info), info->len);
+		CREATE(m->cell, struct mapcell, size);
+		
+		for( xy = 0; xy < size; ++xy )
+			m->cell[xy] = map_gat2cell(decode_buffer[xy]);
+		
+		m->getcellp = map_getcellp;
+		m->setcell  = map_setcell;
+		
+		for(i = 0; i < m->npc_num; i++) {
+			npc_setcells(m->npc[i]);
+		}
+	}
+}
 
 /*==========================================
  * Confirm if celltype in (m,x,y) match the one given in cellchk
  *------------------------------------------*/
-int map_getcell(int16 m,int16 x,int16 y,cell_chk cellchk)
-{
-	return (m < 0 || m >= MAX_MAP_PER_SERVER) ? 0 : map_getcellp(&map[m],x,y,cellchk);
+int map_getcell(int16 m,int16 x,int16 y,cell_chk cellchk) {
+	return (m < 0 || m >= map_num) ? 0 : map[m].getcellp(&map[m],x,y,cellchk);
 }
 
-int map_getcellp(struct map_data* m,int16 x,int16 y,cell_chk cellchk)
-{
+int map_getcellp(struct map_data* m,int16 x,int16 y,cell_chk cellchk) {
 	struct mapcell cell;
 
 	nullpo_ret(m);
@@ -2474,8 +2543,7 @@ int map_getcellp(struct map_data* m,int16 x,int16 y,cell_chk cellchk)
 
 	cell = m->cell[x + y*m->xs];
 
-	switch(cellchk)
-	{
+	switch(cellchk) {
 		// gat type retrieval
 		case CELL_GETTYPE:
 			return map_cell2gat(cell);
@@ -2534,13 +2602,19 @@ int map_getcellp(struct map_data* m,int16 x,int16 y,cell_chk cellchk)
 	}
 }
 
+/* [Ind/Hercules] */
+int map_sub_getcellp(struct map_data* m,int16 x,int16 y,cell_chk cellchk) {
+	map_cellfromcache(m);
+	m->getcellp = map_getcellp;
+	m->setcell  = map_setcell;
+	return m->getcellp(m,x,y,cellchk);
+}
 /*==========================================
  * Change the type/flags of a map cell
  * 'cell' - which flag to modify
  * 'flag' - true = on, false = off
  *------------------------------------------*/
-void map_setcell(int16 m, int16 x, int16 y, cell_t cell, bool flag)
-{
+void map_setcell(int16 m, int16 x, int16 y, cell_t cell, bool flag) {
 	int j;
 
 	if( m < 0 || m >= map_num || x < 0 || x >= map[m].xs || y < 0 || y >= map[m].ys )
@@ -2565,7 +2639,16 @@ void map_setcell(int16 m, int16 x, int16 y, cell_t cell, bool flag)
 			break;
 	}
 }
-
+void map_sub_setcell(int16 m, int16 x, int16 y, cell_t cell, bool flag) {
+	
+	if( m < 0 || m >= map_num || x < 0 || x >= map[m].xs || y < 0 || y >= map[m].ys )
+		return;
+	
+	map_cellfromcache(&map[m]);
+	map[m].setcell = map_setcell;
+	map[m].getcellp = map_getcellp;
+	map[m].setcell(m,x,y,cell,flag);
+}
 void map_setgatcell(int16 m, int16 x, int16 y, int gat)
 {
 	int j;
@@ -2635,8 +2718,8 @@ bool map_iwall_set(int16 m, int16 x, int16 y, int size, int8 dir, bool shootable
 		if( map_getcell(m, x1, y1, CELL_CHKNOREACH) )
 			break; // Collision
 
-		map_setcell(m, x1, y1, CELL_WALKABLE, false);
-		map_setcell(m, x1, y1, CELL_SHOOTABLE, shootable);
+		map[m].setcell(m, x1, y1, CELL_WALKABLE, false);
+		map[m].setcell(m, x1, y1, CELL_SHOOTABLE, shootable);
 
 		clif->changemapcell(0, m, x1, y1, map_getcell(m, x1, y1, CELL_GETTYPE), ALL_SAMEMAP);
 	}
@@ -2682,8 +2765,8 @@ void map_iwall_remove(const char *wall_name)
 	for( i = 0; i < iwall->size; i++ ) {
 		map_iwall_nextxy(iwall->x, iwall->y, iwall->dir, i, &x1, &y1);
 
-		map_setcell(iwall->m, x1, y1, CELL_SHOOTABLE, true);
-		map_setcell(iwall->m, x1, y1, CELL_WALKABLE, true);
+		map[iwall->m].setcell(iwall->m, x1, y1, CELL_SHOOTABLE, true);
+		map[iwall->m].setcell(iwall->m, x1, y1, CELL_WALKABLE, true);
 
 		clif->changemapcell(0, iwall->m, x1, y1, map_getcell(iwall->m, x1, y1, CELL_GETTYPE), ALL_SAMEMAP);
 	}
@@ -2740,8 +2823,7 @@ int map_eraseallipport_sub(DBKey key, DBData *data, va_list va)
 	return 0;
 }
 
-int map_eraseallipport(void)
-{
+int map_eraseallipport(void) {
 	map_db->foreach(map_db,map_eraseallipport_sub);
 	return 1;
 }
@@ -2749,8 +2831,7 @@ int map_eraseallipport(void)
 /*==========================================
  * Delete mapindex from db of another map server
  *------------------------------------------*/
-int map_eraseipport(unsigned short mapindex, uint32 ip, uint16 port)
-{
+int map_eraseipport(unsigned short mapindex, uint32 ip, uint16 port) {
 	struct map_data_other_server *mdos;
 
 	mdos = (struct map_data_other_server*)uidb_get(map_db,(unsigned int)mapindex);
@@ -2800,13 +2881,12 @@ static char *map_init_mapcache(FILE *fp)
  * Map cache reading
  * [Shinryo]: Optimized some behaviour to speed this up
  *==========================================*/
-int map_readfromcache(struct map_data *m, char *buffer, char *decode_buffer)
-{
+int map_readfromcache(struct map_data *m, char *buffer) {
 	int i;
 	struct map_cache_main_header *header = (struct map_cache_main_header *)buffer;
 	struct map_cache_map_info *info = NULL;
 	char *p = buffer + sizeof(struct map_cache_main_header);
-
+	
 	for(i = 0; i < header->map_count; i++) {
 		info = (struct map_cache_map_info *)p;
 
@@ -2818,8 +2898,8 @@ int map_readfromcache(struct map_data *m, char *buffer, char *decode_buffer)
 	}
 
 	if( info && i < header->map_count ) {
-		unsigned long size, xy;
-
+		unsigned long size;
+		
 		if( info->xs <= 0 || info->ys <= 0 )
 			return 0;// Invalid
 
@@ -2831,51 +2911,30 @@ int map_readfromcache(struct map_data *m, char *buffer, char *decode_buffer)
 			ShowWarning("map_readfromcache: %s exceeded MAX_MAP_SIZE of %d\n", info->name, MAX_MAP_SIZE);
 			return 0; // Say not found to remove it from list.. [Shinryo]
 		}
-
-		// TO-DO: Maybe handle the scenario, if the decoded buffer isn't the same size as expected? [Shinryo]
-		decode_zip(decode_buffer, &size, p+sizeof(struct map_cache_map_info), info->len);
-
-		CREATE(m->cell, struct mapcell, size);
-
-
-		for( xy = 0; xy < size; ++xy )
-			m->cell[xy] = map_gat2cell(decode_buffer[xy]);
-
+		
+		m->cellPos = p;
+		m->cell = (struct mapcell *)0xdeadbeaf;
+		
 		return 1;
 	}
 
 	return 0; // Not found
 }
 
-int map_addmap(char* mapname)
-{
-	if( strcmpi(mapname,"clear")==0 )
-	{
-		map_num = 0;
-		instance_start = 0;
-		return 0;
-	}
-
-	if( map_num >= MAX_MAP_PER_SERVER - 1 )
-	{
-		ShowError("Could not add map '"CL_WHITE"%s"CL_RESET"', the limit of maps has been reached.\n",mapname);
-		return 1;
-	}
 
-	mapindex_getmapname(mapname, map[map_num].name);
-	map_num++;
+int map_addmap(char* mapname) {
+	map[map_num].instance_id = -1;
+	mapindex_getmapname(mapname, map[map_num++].name);
 	return 0;
 }
 
-static void map_delmapid(int id)
-{
+static void map_delmapid(int id) {
 	ShowNotice("Removing map [ %s ] from maplist"CL_CLL"\n",map[id].name);
 	memmove(map+id, map+id+1, sizeof(map[0])*(map_num-id-1));
 	map_num--;
 }
 
-int map_delmap(char* mapname)
-{
+int map_delmap(char* mapname) {
 	int i;
 	char map_name[MAP_NAME_LENGTH];
 
@@ -2958,13 +3017,62 @@ void map_zone_db_clear(void) {
 	}
 	aFree(map_zone_all.capped_skills);
 }
-
+void map_clean(int i) {
+	int v;
+	if(map[i].cell && map[i].cell != (struct mapcell *)0xdeadbeaf) aFree(map[i].cell);
+	if(map[i].block) aFree(map[i].block);
+	if(map[i].block_mob) aFree(map[i].block_mob);
+	
+	if(battle_config.dynamic_mobs) { //Dynamic mobs flag by [random]
+		int j;
+		if(map[i].mob_delete_timer != INVALID_TIMER)
+			delete_timer(map[i].mob_delete_timer, map_removemobs_timer);
+		for (j=0; j<MAX_MOB_LIST_PER_MAP; j++)
+			if (map[i].moblist[j]) aFree(map[i].moblist[j]);
+	}
+	
+	if( map[i].unit_count ) {
+		for(v = 0; v < map[i].unit_count; v++) {
+			aFree(map[i].units[v]);
+		}
+		if( map[i].units ) {
+			aFree(map[i].units);
+			map[i].units = NULL;
+		}
+		map[i].unit_count = 0;
+	}
+	
+	if( map[i].skill_count ) {
+		for(v = 0; v < map[i].skill_count; v++) {
+			aFree(map[i].skills[v]);
+		}
+		if( map[i].skills ) {
+			aFree(map[i].skills);
+			map[i].skills = NULL;
+		}
+		map[i].skill_count = 0;
+	}
+	
+	if( map[i].zone_mf_count ) {
+		for(v = 0; v < map[i].zone_mf_count; v++) {
+			aFree(map[i].zone_mf[v]);
+		}
+		if( map[i].zone_mf ) {
+			aFree(map[i].zone_mf);
+			map[i].zone_mf = NULL;
+		}
+		map[i].zone_mf_count = 0;
+	}
+	
+	if( map[i].channel )
+		clif->chsys_delete(map[i].channel);
+}
 void do_final_maps(void) {
 	int i, v = 0;
 
 	for( i = 0; i < map_num; i++ ) {
 		
-		if(map[i].cell) aFree(map[i].cell);
+		if(map[i].cell && map[i].cell != (struct mapcell *)0xdeadbeaf ) aFree(map[i].cell);
 		if(map[i].block) aFree(map[i].block);
 		if(map[i].block_mob) aFree(map[i].block_mob);
 		
@@ -3009,6 +3117,12 @@ void do_final_maps(void) {
 			map[i].zone_mf_count = 0;
 		}
 		
+		if( map[i].drop_list_count ) {
+			map[i].drop_list_count = 0;
+		}
+		if( map[i].drop_list != NULL )
+			aFree(map[i].drop_list);
+		
 		if( map[i].channel )
 			clif->chsys_delete(map[i].channel);
 	}
@@ -3028,7 +3142,10 @@ void map_flags_init(void) {
 		map[i].nocommand = 0;  // nocommand mapflag level
 		map[i].bexp      = 100;  // per map base exp multiplicator
 		map[i].jexp      = 100;  // per map job exp multiplicator
-		memset(map[i].drop_list, 0, sizeof(map[i].drop_list));  // pvp nightmare drop list
+		if( map[i].drop_list != NULL )
+			aFree(map[i].drop_list);
+		map[i].drop_list = NULL;
+		map[i].drop_list_count = 0;
 
 		if( map[i].unit_count ) {
 			for(v = 0; v < map[i].unit_count; v++) {
@@ -3153,14 +3270,12 @@ int map_readgat (struct map_data* m)
 /*======================================
  * Add/Remove map to the map_db
  *--------------------------------------*/
-void map_addmap2db(struct map_data *m)
-{
-	uidb_put(map_db, (unsigned int)m->index, m);
+void map_addmap2db(struct map_data *m) {
+	index2mapid[m->index] = m->m;
 }
 
-void map_removemapdb(struct map_data *m)
-{
-	uidb_remove(map_db, (unsigned int)m->index);
+void map_removemapdb(struct map_data *m) {
+	index2mapid[m->index] = 0;
 }
 
 /*======================================
@@ -3170,8 +3285,6 @@ int map_readallmaps (void) {
 	int i;
 	FILE* fp=NULL;
 	int maps_removed = 0;
-	char *map_cache_buffer = NULL; // Has the uncompressed gat data of all maps, so just one allocation has to be made
-	char map_cache_decode_buffer[MAX_MAP_SIZE];
 	
 	if( enable_grf )
 		ShowStatus("Loading maps (using GRF files)...\n");
@@ -3203,7 +3316,7 @@ int map_readallmaps (void) {
 		if( !
 			(enable_grf?
 				 map_readgat(&map[i])
-				:map_readfromcache(&map[i], map_cache_buffer, map_cache_decode_buffer))
+				:map_readfromcache(&map[i], map_cache_buffer))
 			) {
 			map_delmapid(i);
 			maps_removed++;
@@ -3213,10 +3326,9 @@ int map_readallmaps (void) {
 
 		map[i].index = mapindex_name2id(map[i].name);
 
-		if (uidb_get(map_db,(unsigned int)map[i].index) != NULL)
-		{
+		if ( index2mapid[map[i].index] != 0 ) {
 			ShowWarning("Map %s already loaded!"CL_CLL"\n", map[i].name);
-			if (map[i].cell) {
+			if (map[i].cell && map[i].cell != (struct mapcell *)0xdeadbeaf) {
 				aFree(map[i].cell);
 				map[i].cell = NULL;
 			}
@@ -3225,10 +3337,10 @@ int map_readallmaps (void) {
 			i--;
 			continue;
 		}
-
+		
+		map[i].m = i;
 		map_addmap2db(&map[i]);
 
-		map[i].m = i;
 		memset(map[i].moblist, 0, sizeof(map[i].moblist));	//Initialize moblist [Skotlex]
 		map[i].mob_delete_timer = INVALID_TIMER;	//Initialize timer [Skotlex]
 
@@ -3238,6 +3350,9 @@ int map_readallmaps (void) {
 		size = map[i].bxs * map[i].bys * sizeof(struct block_list*);
 		map[i].block = (struct block_list**)aCalloc(size, 1);
 		map[i].block_mob = (struct block_list**)aCalloc(size, 1);
+		
+		map[i].getcellp = map_sub_getcellp;
+		map[i].setcell  = map_sub_setcell;
 	}
 
 	// intialization and configuration-dependent adjustments of mapflags
@@ -3245,14 +3360,11 @@ int map_readallmaps (void) {
 
 	if( !enable_grf ) {
 		fclose(fp);
-
-		// The cache isn't needed anymore, so free it.. [Shinryo]
-		aFree(map_cache_buffer);
 	}
 
 	// finished map loading
 	ShowInfo("Successfully loaded '"CL_WHITE"%d"CL_RESET"' maps."CL_CLL"\n",map_num);
-	instance_start = map_num; // Next Map Index will be instances
+	instance->start_id = map_num; // Next Map Index will be instances
 
 	if (maps_removed)
 		ShowNotice("Maps removed: '"CL_WHITE"%d"CL_RESET"'\n",maps_removed);
@@ -3267,20 +3379,17 @@ static int char_ip_set = 0;
 /*==========================================
  * Read map server configuration files (conf/map_server.conf...)
  *------------------------------------------*/
-int map_config_read(char *cfgName)
-{
+int map_config_read(char *cfgName) {
 	char line[1024], w1[1024], w2[1024];
 	FILE *fp;
 
 	fp = fopen(cfgName,"r");
-	if( fp == NULL )
-	{
+	if( fp == NULL ) {
 		ShowError("Map configuration file not found at: %s\n", cfgName);
 		return 1;
 	}
 
-	while( fgets(line, sizeof(line), fp) )
-	{
+	while( fgets(line, sizeof(line), fp) ) {
 		char* ptr;
 
 		if( line[0] == '/' && line[1] == '/' )
@@ -3320,9 +3429,9 @@ int map_config_read(char *cfgName)
 			clif->setport(atoi(w2));
 			map_port = (atoi(w2));
 		} else if (strcmpi(w1, "map") == 0)
-			map_addmap(w2);
+			map_num++;
 		else if (strcmpi(w1, "delmap") == 0)
-			map_delmap(w2);
+			map_num--;
 		else if (strcmpi(w1, "npc") == 0)
 			npc_addsrcfile(w2);
 		else if (strcmpi(w1, "delnpc") == 0)
@@ -3362,7 +3471,43 @@ int map_config_read(char *cfgName)
 	fclose(fp);
 	return 0;
 }
-
+int map_config_read_sub(char *cfgName) {
+	char line[1024], w1[1024], w2[1024];
+	FILE *fp;
+	
+	fp = fopen(cfgName,"r");
+	if( fp == NULL ) {
+		ShowError("Map configuration file not found at: %s\n", cfgName);
+		return 1;
+	}
+	
+	while( fgets(line, sizeof(line), fp) ) {
+		char* ptr;
+		
+		if( line[0] == '/' && line[1] == '/' )
+			continue;
+		if( (ptr = strstr(line, "//")) != NULL )
+			*ptr = '\n'; //Strip comments
+		if( sscanf(line, "%[^:]: %[^\t\r\n]", w1, w2) < 2 )
+			continue;
+		
+		//Strip trailing spaces
+		ptr = w2 + strlen(w2);
+		while (--ptr >= w2 && *ptr == ' ');
+		ptr++;
+		*ptr = '\0';
+		
+		if (strcmpi(w1, "map") == 0)
+			map_addmap(w2);
+		else if (strcmpi(w1, "delmap") == 0)
+			map_delmap(w2);
+		else if (strcmpi(w1, "import") == 0)
+			map_config_read_sub(w2);
+	}
+	
+	fclose(fp);
+	return 0;
+}
 void map_reloadnpc_sub(char *cfgName)
 {
 	char line[1024], w1[1024], w2[1024];
@@ -4849,11 +4994,12 @@ void read_map_zone_db(void) {
 /**
  * @see DBApply
  */
-int map_db_final(DBKey key, DBData *data, va_list ap)
-{
+int map_db_final(DBKey key, DBData *data, va_list ap) {
 	struct map_data_other_server *mdos = DB->data2ptr(data);
-	if(mdos && mdos->cell == NULL)
+
+	if(mdos && malloclib->verify_ptr(mdos) && mdos->cell == NULL)
 		aFree(mdos);
+	
 	return 0;
 }
 
@@ -4877,8 +5023,7 @@ int nick_db_final(DBKey key, DBData *data, va_list args)
 	return 0;
 }
 
-int cleanup_sub(struct block_list *bl, va_list ap)
-{
+int cleanup_sub(struct block_list *bl, va_list ap) {
 	nullpo_ret(bl);
 
 	switch(bl->type) {
@@ -4932,6 +5077,8 @@ void do_final(void)
 		map_quit(sd);
 	mapit->free(iter);
 
+	instance->final();
+	
 	/* prepares npcs for a faster shutdown process */
 	do_clear_npc();
 
@@ -4954,7 +5101,6 @@ void do_final(void)
 	clif->final();
 	do_final_npc();
 	script->final();
-	do_final_instance();
 	do_final_itemdb();
 	do_final_storage();
 	guild->final();
@@ -4993,6 +5139,9 @@ void do_final(void)
 	
 	aFree(map);
 
+	if( !enable_grf )
+		aFree(map_cache_buffer);
+
 	ShowStatus("Finished.\n");
 }
 
@@ -5196,10 +5345,12 @@ void map_defaults(void) {
 void load_defaults(void) {
 	atcommand_defaults();
 	battle_defaults();
+	battleground_defaults();
 	buyingstore_defaults();
 	clif_defaults();
 	guild_defaults();
 	homunculus_defaults();
+	instance_defaults();
 	ircbot_defaults();
 	log_defaults();
 	map_defaults();
@@ -5228,79 +5379,50 @@ int do_init(int argc, char *argv[])
 
 	rnd_init();
 
-	for( i = 1; i < argc ; i++ )
-	{
+	for( i = 1; i < argc ; i++ ) {
 		const char* arg = argv[i];
 
-		if( arg[0] != '-' && ( arg[0] != '/' || arg[1] == '-' ) )
-		{// -, -- and /
+		if( arg[0] != '-' && ( arg[0] != '/' || arg[1] == '-' ) ) {// -, -- and /
 			ShowError("Unknown option '%s'.\n", argv[i]);
 			exit(EXIT_FAILURE);
-		}
-		else if( (++arg)[0] == '-' )
-		{// long option
+		} else if( (++arg)[0] == '-' ) {// long option
 			arg++;
 
-			if( strcmp(arg, "help") == 0 )
-			{
+			if( strcmp(arg, "help") == 0 ) {
 				map_helpscreen(true);
-			}
-			else if( strcmp(arg, "version") == 0 )
-			{
+			} else if( strcmp(arg, "version") == 0 ) {
 				map_versionscreen(true);
-			}
-			else if( strcmp(arg, "map-config") == 0 )
-			{
+			} else if( strcmp(arg, "map-config") == 0 ) {
 				if( map_arg_next_value(arg, i, argc) )
 					MAP_CONF_NAME = argv[++i];
-			}
-			else if( strcmp(arg, "battle-config") == 0 )
-			{
+			} else if( strcmp(arg, "battle-config") == 0 ) {
 				if( map_arg_next_value(arg, i, argc) )
 					BATTLE_CONF_FILENAME = argv[++i];
-			}
-			else if( strcmp(arg, "atcommand-config") == 0 )
-			{
+			} else if( strcmp(arg, "atcommand-config") == 0 ) {
 				if( map_arg_next_value(arg, i, argc) )
 					ATCOMMAND_CONF_FILENAME = argv[++i];
-			}
-			else if( strcmp(arg, "script-config") == 0 )
-			{
+			} else if( strcmp(arg, "script-config") == 0 ) {
 				if( map_arg_next_value(arg, i, argc) )
 					SCRIPT_CONF_NAME = argv[++i];
-			}
-			else if( strcmp(arg, "msg-config") == 0 )
-			{
+			} else if( strcmp(arg, "msg-config") == 0 ) {
 				if( map_arg_next_value(arg, i, argc) )
 					MSG_CONF_NAME = argv[++i];
-			}
-			else if( strcmp(arg, "grf-path-file") == 0 )
-			{
+			} else if( strcmp(arg, "grf-path-file") == 0 ) {
 				if( map_arg_next_value(arg, i, argc) )
 					GRF_PATH_FILENAME = argv[++i];
-			}
-			else if( strcmp(arg, "inter-config") == 0 )
-			{
+			} else if( strcmp(arg, "inter-config") == 0 ) {
 				if( map_arg_next_value(arg, i, argc) )
 					INTER_CONF_NAME = argv[++i];
-			}
-			else if( strcmp(arg, "log-config") == 0 )
-			{
+			} else if( strcmp(arg, "log-config") == 0 ) {
 				if( map_arg_next_value(arg, i, argc) )
 					LOG_CONF_NAME = argv[++i];
-			}
-			else if( strcmp(arg, "run-once") == 0 ) // close the map-server as soon as its done.. for testing [Celest]
-			{
+			} else if( strcmp(arg, "run-once") == 0 ) { // close the map-server as soon as its done.. for testing [Celest]
 				runflag = CORE_ST_STOP;
-			}
-			else
-			{
+			} else {
 				ShowError("Unknown option '%s'.\n", argv[i]);
 				exit(EXIT_FAILURE);
 			}
-		}
-		else switch( arg[0] )
-		{// short option
+		} else switch( arg[0] ) {// short option
 			case '?':
 			case 'h':
 				map_helpscreen(true);
@@ -5313,12 +5435,13 @@ int do_init(int argc, char *argv[])
 				exit(EXIT_FAILURE);
 		}
 	}
-	
-	CREATE(map,struct map_data,MAX_MAP_PER_SERVER);
-	
+	memset(&index2mapid, 0, sizeof(index2mapid));
+
 	load_defaults();
-	
 	map_config_read(MAP_CONF_NAME);
+	CREATE(map,struct map_data,map_num);
+	map_num = 0;
+	map_config_read_sub(MAP_CONF_NAME);
 	// loads npcs
 	map_reloadnpc(false);
 
@@ -5384,7 +5507,7 @@ int do_init(int argc, char *argv[])
 	
 	atcommand->init();
 	battle->init();
-	do_init_instance();
+	instance->init();
 	do_init_chrif();
 	clif->init();
 	ircbot->init();
diff --git a/src/map/map.h b/src/map/map.h
index f524e8840..850913474 100644
--- a/src/map/map.h
+++ b/src/map/map.h
@@ -27,20 +27,18 @@ enum E_MAPSERVER_ST {
 	MAPSERVER_ST_LAST
 };
 
-
 #define MAX_NPC_PER_MAP 512
 #define AREA_SIZE battle_config.area_size
 #define DAMAGELOG_SIZE 30
 #define LOOTITEM_SIZE 10
 #define MAX_MOBSKILL 50	//Max 128, see mob skill_idx type if need this higher
-#define MAX_MOB_LIST_PER_MAP 128
+#define MAX_MOB_LIST_PER_MAP 100
 #define MAX_EVENTQUEUE 2
 #define MAX_EVENTTIMER 32
 #define NATURAL_HEAL_INTERVAL 500
 #define MIN_FLOORITEM 2
 #define MAX_FLOORITEM START_ACCOUNT_NUM
 #define MAX_LEVEL 150
-#define MAX_DROP_PER_MAP 48
 #define MAX_IGNORE_LIST 20 // official is 14
 #define MAX_VENDING 12
 #define MAX_MAP_SIZE 512*512 // Wasn't there something like this already? Can't find it.. [Shinryo]
@@ -558,6 +556,12 @@ void map_zone_change2(int m, struct map_zone_data *zone);
 struct map_zone_data map_zone_all;/* used as a base on all maps */
 struct map_zone_data map_zone_pk;/* used for (pk_mode) */
 
+struct map_drop_list {
+	int drop_id;
+	int drop_type;
+	int drop_per;
+};
+
 
 struct map_data {
 	char name[MAP_NAME_LENGTH];
@@ -625,11 +629,8 @@ struct map_data {
 	} flag;
 	struct point save;
 	struct npc_data *npc[MAX_NPC_PER_MAP];
-	struct {
-		int drop_id;
-		int drop_type;
-		int drop_per;
-	} drop_list[MAX_DROP_PER_MAP];
+	struct map_drop_list *drop_list;
+	unsigned short drop_list_count;
 
 	struct spawn_data *moblist[MAX_MOB_LIST_PER_MAP]; // [Wizputer]
 	int mob_delete_timer;	// [Skotlex]
@@ -676,6 +677,14 @@ struct map_data {
 	unsigned short short_damage_rate;
 	/* long_damage_rate mapflag */
 	unsigned short long_damage_rate;
+	
+	/* instance unique name */
+	char *cName;
+	
+	/* */
+	int (*getcellp)(struct map_data* m,int16 x,int16 y,cell_chk cellchk);
+	void (*setcell) (int16 m, int16 x, int16 y, cell_t cell, bool flag);
+	char *cellPos;
 };
 
 /// Stores information about a remote map (for multi-mapserver setups).
@@ -689,8 +698,6 @@ struct map_data_other_server {
 };
 
 int map_getcell(int16 m,int16 x,int16 y,cell_chk cellchk);
-int map_getcellp(struct map_data* m,int16 x,int16 y,cell_chk cellchk);
-void map_setcell(int16 m, int16 x, int16 y, cell_t cell, bool flag);
 void map_setgatcell(int16 m, int16 x, int16 y, int gat);
 
 struct map_data *map;
@@ -711,6 +718,8 @@ extern char charhelp_txt[];
 
 extern char wisp_server_name[];
 
+void map_cellfromcache(struct map_data *m);
+
 // users
 void map_setusers(int);
 int map_getusers(void);
@@ -733,6 +742,7 @@ int map_foreachinmovearea(int (*func)(struct block_list*,va_list), struct block_
 int map_foreachincell(int (*func)(struct block_list*,va_list), int16 m, int16 x, int16 y, int type, ...);
 int map_foreachinpath(int (*func)(struct block_list*,va_list), int16 m, int16 x0, int16 y0, int16 x1, int16 y1, int16 range, int length, int type, ...);
 int map_foreachinmap(int (*func)(struct block_list*,va_list), int16 m, int type, ...);
+int map_foreachininstance(int (*func)(struct block_list*,va_list), int16 instance_id, int type,...);
 //blocklist nb in one cell
 int map_count_oncell(int16 m,int16 x,int16 y,int type);
 struct skill_unit *map_find_skill_unit_oncell(struct block_list *,int16 x,int16 y,uint16 skill_id,struct skill_unit *, int flag);
@@ -831,6 +841,7 @@ void map_removemobs(int16 m); // [Wizputer]
 void do_reconnect_map(void); //Invoked on map-char reconnection [Skotlex]
 void map_addmap2db(struct map_data *m);
 void map_removemapdb(struct map_data *m);
+void map_clean(int i);
 
 extern char *INTER_CONF_NAME;
 extern char *LOG_CONF_NAME;
diff --git a/src/map/mob.c b/src/map/mob.c
index 57325ba1c..433e979f3 100644
--- a/src/map/mob.c
+++ b/src/map/mob.c
@@ -137,7 +137,7 @@ void mvptomb_create(struct mob_data *md, char *killer, time_t time)
 
 	nd->bl.id = md->tomb_nid = npc_get_new_npc_id();
 
-    nd->ud.dir = md->ud.dir;
+    nd->dir = md->ud.dir;
 	nd->bl.m = md->bl.m;
 	nd->bl.x = md->bl.x;
 	nd->bl.y = md->bl.y;
@@ -262,8 +262,7 @@ int mob_parse_dataset(struct spawn_data *data)
 /*==========================================
  * Generates the basic mob data using the spawn_data provided.
  *------------------------------------------*/
-struct mob_data* mob_spawn_dataset(struct spawn_data *data)
-{
+struct mob_data* mob_spawn_dataset(struct spawn_data *data) {
 	struct mob_data *md = (struct mob_data*)aCalloc(1, sizeof(struct mob_data));
 	md->bl.id= npc_get_new_npc_id();
 	md->bl.type = BL_MOB;
@@ -290,7 +289,7 @@ struct mob_data* mob_spawn_dataset(struct spawn_data *data)
 	status_set_viewdata(&md->bl, md->class_);
 	status_change_init(&md->bl);
 	unit_dataset(&md->bl);
-
+	
 	map_addiddb(&md->bl);
 	return md;
 }
diff --git a/src/map/npc.c b/src/map/npc.c
index 7d0d5c6e1..bff6be30c 100644
--- a/src/map/npc.c
+++ b/src/map/npc.c
@@ -122,7 +122,7 @@ struct view_data* npc_get_viewdata(int class_)
 static int npc_isnear_sub(struct block_list* bl, va_list args) {
     struct npc_data *nd = (struct npc_data*)bl;
     
-    if( nd->sc.option & (OPTION_HIDE|OPTION_INVISIBLE) )
+    if( nd->option & (OPTION_HIDE|OPTION_INVISIBLE) )
         return 0;
 
     return 1;
@@ -175,7 +175,7 @@ int npc_enable_sub(struct block_list *bl, va_list ap)
 	{
 		TBL_PC *sd = (TBL_PC*)bl;
 
-		if (nd->sc.option&OPTION_INVISIBLE)
+		if (nd->option&OPTION_INVISIBLE)
 			return 1;
 
 		if( npc_ontouch_event(sd,nd) > 0 && npc_ontouch2_event(sd,nd) > 0 )
@@ -204,20 +204,20 @@ int npc_enable(const char* name, int flag)
 	}
 
 	if (flag&1) {
-		nd->sc.option&=~OPTION_INVISIBLE;
+		nd->option&=~OPTION_INVISIBLE;
 		clif->spawn(&nd->bl);
 	} else if (flag&2)
-		nd->sc.option&=~OPTION_HIDE;
+		nd->option&=~OPTION_HIDE;
 	else if (flag&4)
-		nd->sc.option|= OPTION_HIDE;
+		nd->option|= OPTION_HIDE;
 	else {	//Can't change the view_data to invisible class because the view_data for all npcs is shared! [Skotlex]
-		nd->sc.option|= OPTION_INVISIBLE;
+		nd->option|= OPTION_INVISIBLE;
 		clif->clearunit_area(&nd->bl,CLR_OUTSIGHT);  // Hack to trick maya purple card [Xazax]
 	}
 
 	if (nd->class_ == WARP_CLASS || nd->class_ == FLAG_CLASS)
 	{	//Client won't display option changes for these classes [Toms]
-		if (nd->sc.option&(OPTION_HIDE|OPTION_INVISIBLE))
+		if (nd->option&(OPTION_HIDE|OPTION_INVISIBLE))
 			clif->clearunit_area(&nd->bl, CLR_OUTSIGHT);
 		else
 			clif->spawn(&nd->bl);
@@ -385,8 +385,7 @@ static int npc_event_do_sub(DBKey key, DBData *data, va_list ap)
 	nullpo_ret(c = va_arg(ap, int *));
 	nullpo_ret(name = va_arg(ap, const char *));
 
-	if( p && strcmpi(name, p) == 0 )
-	{
+	if( p && strcmpi(name, p) == 0 ) {
 		run_script(ev->nd->u.scr.script,ev->pos,0,ev->nd->bl.id);
 		(*c)++;
 	}
@@ -815,7 +814,7 @@ int npc_event_sub(struct map_session_data* sd, struct event_data* ev, const char
 		ShowWarning("npc_event: player's event queue is full, can't add event '%s' !\n", eventname);
 		return 1;
 	}
-	if( ev->nd->sc.option&OPTION_INVISIBLE )
+	if( ev->nd->option&OPTION_INVISIBLE )
 	{
 		//Disabled npc, shouldn't trigger event.
 		npc_event_dequeue(sd);
@@ -835,22 +834,20 @@ int npc_event(struct map_session_data* sd, const char* eventname, int ontouch)
 
 	nullpo_ret(sd);
 
-	if( ev == NULL || (nd = ev->nd) == NULL )
-	{
+	if( ev == NULL || (nd = ev->nd) == NULL ) {
 		if( !ontouch )
 			ShowError("npc_event: event not found [%s]\n", eventname);
 		return ontouch;
 	}
 
-	switch(ontouch)
-	{
-	case 1:
-		nd->touching_id = sd->bl.id;
-		sd->touching_id = nd->bl.id;
-		break;
-	case 2:
-		sd->areanpc_id = nd->bl.id;
-		break;
+	switch(ontouch) {
+		case 1:
+			nd->touching_id = sd->bl.id;
+			sd->touching_id = nd->bl.id;
+			break;
+		case 2:
+			sd->areanpc_id = nd->bl.id;
+			break;
 	}
 
 	return npc_event_sub(sd,ev,eventname);
@@ -928,9 +925,8 @@ int npc_touch_areanpc(struct map_session_data* sd, int16 m, int16 x, int16 y)
 	//if(sd->npc_id)
 	//	return 1;
 
-	for(i=0;i<map[m].npc_num;i++)
-	{
-		if (map[m].npc[i]->sc.option&OPTION_INVISIBLE) {
+	for(i=0;i<map[m].npc_num;i++) {
+		if (map[m].npc[i]->option&OPTION_INVISIBLE) {
 			f=0; // a npc was found, but it is disabled; don't print warning
 			continue;
 		}
@@ -1008,13 +1004,11 @@ int npc_touch_areanpc2(struct mob_data *md)
 	struct event_data* ev;
 	int xs, ys;
 
-	for( i = 0; i < map[m].npc_num; i++ )
-	{
-		if( map[m].npc[i]->sc.option&OPTION_INVISIBLE )
+	for( i = 0; i < map[m].npc_num; i++ ) {
+		if( map[m].npc[i]->option&OPTION_INVISIBLE )
 			continue;
 
-		switch( map[m].npc[i]->subtype )
-		{
+		switch( map[m].npc[i]->subtype ) {
 			case WARP:
 				if( !( battle_config.mob_warp&1 ) )
 					continue;
@@ -1087,27 +1081,25 @@ int npc_check_areanpc(int flag, int16 m, int16 x, int16 y, int16 range)
 	if (!i) return 0; //No NPC_CELLs.
 
 	//Now check for the actual NPC on said range.
-	for(i=0;i<map[m].npc_num;i++)
-	{
-		if (map[m].npc[i]->sc.option&OPTION_INVISIBLE)
+	for(i=0;i<map[m].npc_num;i++) {
+		if (map[m].npc[i]->option&OPTION_INVISIBLE)
 			continue;
 
-		switch(map[m].npc[i]->subtype)
-		{
-		case WARP:
-			if (!(flag&1))
-				continue;
-			xs=map[m].npc[i]->u.warp.xs;
-			ys=map[m].npc[i]->u.warp.ys;
-			break;
-		case SCRIPT:
-			if (!(flag&2))
+		switch(map[m].npc[i]->subtype) {
+			case WARP:
+				if (!(flag&1))
+					continue;
+				xs=map[m].npc[i]->u.warp.xs;
+				ys=map[m].npc[i]->u.warp.ys;
+				break;
+			case SCRIPT:
+				if (!(flag&2))
+					continue;
+				xs=map[m].npc[i]->u.scr.xs;
+				ys=map[m].npc[i]->u.scr.ys;
+				break;
+			default:
 				continue;
-			xs=map[m].npc[i]->u.scr.xs;
-			ys=map[m].npc[i]->u.scr.ys;
-			break;
-		default:
-			continue;
 		}
 
 		if( x1 >= map[m].npc[i]->bl.x-xs && x0 <= map[m].npc[i]->bl.x+xs
@@ -1206,7 +1198,7 @@ int npc_click(struct map_session_data* sd, struct npc_data* nd)
 	if ((nd = npc_checknear(sd,&nd->bl)) == NULL)
 		return 1;
 	//Hidden/Disabled npc.
-	if (nd->class_ < 0 || nd->sc.option&(OPTION_INVISIBLE|OPTION_HIDE))
+	if (nd->class_ < 0 || nd->option&(OPTION_INVISIBLE|OPTION_HIDE))
 		return 1;
 
 	switch(nd->subtype) {
@@ -1291,7 +1283,7 @@ int npc_buysellsel(struct map_session_data* sd, int id, int type)
 			sd->npc_id=0;
 		return 1;
 	}
-    if (nd->sc.option & OPTION_INVISIBLE) // can't buy if npc is not visible (hack?)
+    if (nd->option & OPTION_INVISIBLE) // can't buy if npc is not visible (hack?)
 		return 1;
 	if( nd->class_ < 0 && !sd->state.callshop )
 	{// not called through a script and is not a visible NPC so an invalid call
@@ -1759,8 +1751,7 @@ int npc_selllist(struct map_session_data* sd, int n, unsigned short* item_list)
 
 //Atempt to remove an npc from a map
 //This doesn't remove it from map_db
-int npc_remove_map(struct npc_data* nd)
-{
+int npc_remove_map(struct npc_data* nd) {
 	int16 m,i;
 	nullpo_retr(1, nd);
 
@@ -1892,6 +1883,11 @@ int npc_unload(struct npc_data* nd, bool single) {
 			guild->flag_remove(nd);
 	}
 
+	if( nd->ud != &npc_base_ud ) {
+		aFree(nd->ud);
+		nd->ud = NULL;
+	}
+	
 	script_stop_sleeptimers(nd->bl.id);
 
 	aFree(nd);
@@ -2060,8 +2056,7 @@ static void npc_parsename(struct npc_data* nd, const char* name, const char* sta
 }
 
 //Add then display an npc warp on map
-struct npc_data* npc_add_warp(char* name, short from_mapid, short from_x, short from_y, short xs, short ys, unsigned short to_mapindex, short to_x, short to_y)
-{
+struct npc_data* npc_add_warp(char* name, short from_mapid, short from_x, short from_y, short xs, short ys, unsigned short to_mapindex, short to_x, short to_y) {
 	int i, flag = 0;
 	struct npc_data *nd;
 
@@ -2100,8 +2095,7 @@ struct npc_data* npc_add_warp(char* name, short from_mapid, short from_x, short
 	npc_setcells(nd);
 	map_addblock(&nd->bl);
 	status_set_viewdata(&nd->bl, nd->class_);
-	status_change_init(&nd->bl);
-	unit_dataset(&nd->bl);
+	nd->ud = &npc_base_ud;
 	if( map[nd->bl.m].users )
 		clif->spawn(&nd->bl);
 	strdb_put(npcname_db, nd->exname, nd);
@@ -2166,8 +2160,7 @@ static const char* npc_parse_warp(char* w1, char* w2, char* w3, char* w4, const
 	npc_setcells(nd);
 	map_addblock(&nd->bl);
 	status_set_viewdata(&nd->bl, nd->class_);
-	status_change_init(&nd->bl);
-	unit_dataset(&nd->bl);
+	nd->ud = &npc_base_ud;
 	if( map[nd->bl.m].users )
 		clif->spawn(&nd->bl);
 	strdb_put(npcname_db, nd->exname, nd);
@@ -2275,18 +2268,15 @@ static const char* npc_parse_shop(char* w1, char* w2, char* w3, char* w4, const
 	++npc_shop;
 	nd->bl.type = BL_NPC;
 	nd->subtype = type;
-	if( m >= 0 )
-	{// normal shop npc
+	if( m >= 0 ) {// normal shop npc
 		map_addnpc(m,nd);
 		map_addblock(&nd->bl);
 		status_set_viewdata(&nd->bl, nd->class_);
-		status_change_init(&nd->bl);
-		unit_dataset(&nd->bl);
-		nd->ud.dir = dir;
+		nd->ud = &npc_base_ud;
+		nd->dir = dir;
 		if( map[nd->bl.m].users )
 			clif->spawn(&nd->bl);
-	} else
-	{// 'floating' shop?
+	} else {// 'floating' shop?
 		map_addiddb(&nd->bl);
 	}
 	strdb_put(npcname_db, nd->exname, nd);
@@ -2485,23 +2475,18 @@ static const char* npc_parse_script(char* w1, char* w2, char* w3, char* w4, cons
 	nd->bl.type = BL_NPC;
 	nd->subtype = SCRIPT;
 
-	if( m >= 0 )
-	{
+	if( m >= 0 ) {
 		map_addnpc(m, nd);
-		status_change_init(&nd->bl);
-		unit_dataset(&nd->bl);
-		nd->ud.dir = dir;
+		nd->ud = &npc_base_ud;
+		nd->dir = dir;
 		npc_setcells(nd);
 		map_addblock(&nd->bl);
-		if( class_ >= 0 )
-		{
+		if( class_ >= 0 ) {
 			status_set_viewdata(&nd->bl, nd->class_);
 			if( map[nd->bl.m].users )
 				clif->spawn(&nd->bl);
 		}
-	}
-	else
-	{
+	} else {
 		// we skip map_addnpc, but still add it to the list of ID's
 		map_addiddb(&nd->bl);
 	}
@@ -2576,13 +2561,10 @@ const char* npc_parse_duplicate(char* w1, char* w2, char* w3, char* w4, const ch
 	type = dnd->subtype;
 
 	// get placement
-	if( (type==SHOP || type==CASHSHOP || type==SCRIPT) && strcmp(w1, "-") == 0 )
-	{// floating shop/chashshop/script
+	if( (type==SHOP || type==CASHSHOP || type==SCRIPT) && strcmp(w1, "-") == 0 ) {// floating shop/chashshop/script
 		x = y = dir = 0;
 		m = -1;
-	}
-	else
-	{
+	} else {
 		if( sscanf(w1, "%31[^,],%d,%d,%d", mapname, &x, &y, &dir) != 4 )// <map name>,<x>,<y>,<facing>
 		{
 			ShowError("npc_parse_duplicate: Invalid placement format for duplicate in file '%s', line '%d'. Skipping line...\n * w1=%s\n * w2=%s\n * w3=%s\n * w4=%s\n", filepath, strline(buffer,start-buffer), w1, w2, w3, w4);
@@ -2599,8 +2581,7 @@ const char* npc_parse_duplicate(char* w1, char* w2, char* w3, char* w4, const ch
 	if( type == WARP && sscanf(w4, "%d,%d", &xs, &ys) == 2 );// <spanx>,<spany>
 	else if( type == SCRIPT && sscanf(w4, "%d,%d,%d", &class_, &xs, &ys) == 3);// <sprite id>,<triggerX>,<triggerY>
 	else if( type != WARP ) class_ = atoi(w4);// <sprite id>
-	else
-	{
+	else {
 		ShowError("npc_parse_duplicate: Invalid span format for duplicate warp in file '%s', line '%d'. Skipping line...\n * w1=%s\n * w2=%s\n * w3=%s\n * w4=%s\n", filepath, strline(buffer,start-buffer), w1, w2, w3, w4);
 		return end;// next line, try to continue
 	}
@@ -2618,56 +2599,50 @@ const char* npc_parse_duplicate(char* w1, char* w2, char* w3, char* w4, const ch
 	nd->src_id = src_id;
 	nd->bl.type = BL_NPC;
 	nd->subtype = (enum npc_subtype)type;
-	switch( type )
-	{
-	case SCRIPT:
-		++npc_script;
-		nd->u.scr.xs = xs;
-		nd->u.scr.ys = ys;
-		nd->u.scr.script = dnd->u.scr.script;
-		nd->u.scr.label_list = dnd->u.scr.label_list;
-		nd->u.scr.label_list_num = dnd->u.scr.label_list_num;
-		break;
-
-	case SHOP:
-	case CASHSHOP:
-		++npc_shop;
-		nd->u.shop.shop_item = dnd->u.shop.shop_item;
-		nd->u.shop.count = dnd->u.shop.count;
-		break;
-
-	case WARP:
-		++npc_warp;
-		if( !battle_config.warp_point_debug )
-			nd->class_ = WARP_CLASS;
-		else
-			nd->class_ = WARP_DEBUG_CLASS;
-		nd->u.warp.xs = xs;
-		nd->u.warp.ys = ys;
-		nd->u.warp.mapindex = dnd->u.warp.mapindex;
-		nd->u.warp.x = dnd->u.warp.x;
-		nd->u.warp.y = dnd->u.warp.y;
-		break;
+	switch( type ) {
+		case SCRIPT:
+			++npc_script;
+			nd->u.scr.xs = xs;
+			nd->u.scr.ys = ys;
+			nd->u.scr.script = dnd->u.scr.script;
+			nd->u.scr.label_list = dnd->u.scr.label_list;
+			nd->u.scr.label_list_num = dnd->u.scr.label_list_num;
+			break;
+
+		case SHOP:
+		case CASHSHOP:
+			++npc_shop;
+			nd->u.shop.shop_item = dnd->u.shop.shop_item;
+			nd->u.shop.count = dnd->u.shop.count;
+			break;
+
+		case WARP:
+			++npc_warp;
+			if( !battle_config.warp_point_debug )
+				nd->class_ = WARP_CLASS;
+			else
+				nd->class_ = WARP_DEBUG_CLASS;
+			nd->u.warp.xs = xs;
+			nd->u.warp.ys = ys;
+			nd->u.warp.mapindex = dnd->u.warp.mapindex;
+			nd->u.warp.x = dnd->u.warp.x;
+			nd->u.warp.y = dnd->u.warp.y;
+			break;
 	}
 
 	//Add the npc to its location
-	if( m >= 0 )
-	{
+	if( m >= 0 ) {
 		map_addnpc(m, nd);
-		status_change_init(&nd->bl);
-		unit_dataset(&nd->bl);
-		nd->ud.dir = dir;
+		nd->ud = &npc_base_ud;
+		nd->dir = dir;
 		npc_setcells(nd);
 		map_addblock(&nd->bl);
-		if( class_ >= 0 )
-		{
+		if( class_ >= 0 ) {
 			status_set_viewdata(&nd->bl, nd->class_);
 			if( map[nd->bl.m].users )
 				clif->spawn(&nd->bl);
 		}
-	}
-	else
-	{
+	} else {
 		// we skip map_addnpc, but still add it to the list of ID's
 		map_addiddb(&nd->bl);
 	}
@@ -2694,25 +2669,21 @@ const char* npc_parse_duplicate(char* w1, char* w2, char* w3, char* w4, const ch
 int npc_duplicate4instance(struct npc_data *snd, int16 m) {
 	char newname[NAME_LENGTH];
 
-	if( map[m].instance_id == 0 )
+	if( map[m].instance_id == -1 )
 		return 1;
 
 	snprintf(newname, ARRAYLENGTH(newname), "dup_%d_%d", map[m].instance_id, snd->bl.id);
-	if( npc_name2id(newname) != NULL )
-	{ // Name already in use
+	if( npc_name2id(newname) != NULL ) { // Name already in use
 		ShowError("npc_duplicate4instance: the npcname (%s) is already in use while trying to duplicate npc %s in instance %d.\n", newname, snd->exname, map[m].instance_id);
 		return 1;
 	}
 
-	if( snd->subtype == WARP )
-	{ // Adjust destination, if instanced
+	if( snd->subtype == WARP ) { // Adjust destination, if instanced
 		struct npc_data *wnd = NULL; // New NPC
 		int dm = map_mapindex2mapid(snd->u.warp.mapindex), im;
 		if( dm < 0 ) return 1;
 
-		im = instance_mapid2imapid(dm, map[m].instance_id);
-		if( im == -1 )
-		{
+		if( ( im = instance->mapid2imapid(dm, map[m].instance_id) ) == -1 ) {
 			ShowError("npc_duplicate4instance: warp (%s) leading to instanced map (%s), but instance map is not attached to current instance.\n", map[dm].name, snd->exname);
 			return 1;
 		}
@@ -2738,18 +2709,15 @@ int npc_duplicate4instance(struct npc_data *snd, int16 m) {
 		npc_setcells(wnd);
 		map_addblock(&wnd->bl);
 		status_set_viewdata(&wnd->bl, wnd->class_);
-		status_change_init(&wnd->bl);
-		unit_dataset(&wnd->bl);
+		wnd->ud = &npc_base_ud;
 		if( map[wnd->bl.m].users )
 			clif->spawn(&wnd->bl);
 		strdb_put(npcname_db, wnd->exname, wnd);
-	}
-	else
-	{
+	} else {
 		static char w1[50], w2[50], w3[50], w4[50];
 		const char* stat_buf = "- call from instancing subsystem -\n";
 
-		snprintf(w1, sizeof(w1), "%s,%d,%d,%d", map[m].name, snd->bl.x, snd->bl.y, snd->ud.dir);
+		snprintf(w1, sizeof(w1), "%s,%d,%d,%d", map[m].name, snd->bl.x, snd->bl.y, snd->dir);
 		snprintf(w2, sizeof(w2), "duplicate(%s)", snd->exname);
 		snprintf(w3, sizeof(w3), "%s::%s", snd->name, newname);
 
@@ -2765,39 +2733,36 @@ int npc_duplicate4instance(struct npc_data *snd, int16 m) {
 }
 
 //Set mapcell CELL_NPC to trigger event later
-void npc_setcells(struct npc_data* nd)
-{
+void npc_setcells(struct npc_data* nd) {
 	int16 m = nd->bl.m, x = nd->bl.x, y = nd->bl.y, xs, ys;
 	int i,j;
 
-	switch(nd->subtype)
-	{
-	case WARP:
-		xs = nd->u.warp.xs;
-		ys = nd->u.warp.ys;
-		break;
-	case SCRIPT:
-		xs = nd->u.scr.xs;
-		ys = nd->u.scr.ys;
-		break;
-	default:
-		return; // Other types doesn't have touch area
+	switch(nd->subtype) {
+		case WARP:
+			xs = nd->u.warp.xs;
+			ys = nd->u.warp.ys;
+			break;
+		case SCRIPT:
+			xs = nd->u.scr.xs;
+			ys = nd->u.scr.ys;
+			break;
+		default:
+			return; // Other types doesn't have touch area
 	}
 
-	if (m < 0 || xs < 0 || ys < 0) //invalid range or map
+	if (m < 0 || xs < 0 || ys < 0 || map[m].cell == (struct mapcell *)0xdeadbeaf) //invalid range or map
 		return;
 
 	for (i = y-ys; i <= y+ys; i++) {
 		for (j = x-xs; j <= x+xs; j++) {
 			if (map_getcell(m, j, i, CELL_CHKNOPASS))
 				continue;
-			map_setcell(m, j, i, CELL_NPC, true);
+			map[m].setcell(m, j, i, CELL_NPC, true);
 		}
 	}
 }
 
-int npc_unsetcells_sub(struct block_list* bl, va_list ap)
-{
+int npc_unsetcells_sub(struct block_list* bl, va_list ap) {
 	struct npc_data *nd = (struct npc_data*)bl;
 	int id =  va_arg(ap,int);
 	if (nd->bl.id == id) return 0;
@@ -2805,8 +2770,7 @@ int npc_unsetcells_sub(struct block_list* bl, va_list ap)
 	return 1;
 }
 
-void npc_unsetcells(struct npc_data* nd)
-{
+void npc_unsetcells(struct npc_data* nd) {
 	int16 m = nd->bl.m, x = nd->bl.x, y = nd->bl.y, xs, ys;
 	int i,j, x0, x1, y0, y1;
 
@@ -2818,7 +2782,7 @@ void npc_unsetcells(struct npc_data* nd)
 		ys = nd->u.scr.ys;
 	}
 
-	if (m < 0 || xs < 0 || ys < 0)
+	if (m < 0 || xs < 0 || ys < 0 || map[m].cell == (struct mapcell *)0xdeadbeaf)
 		return;
 
 	//Locate max range on which we can locate npc cells
@@ -2831,7 +2795,7 @@ void npc_unsetcells(struct npc_data* nd)
 	//Erase this npc's cells
 	for (i = y-ys; i <= y+ys; i++)
 		for (j = x-xs; j <= x+xs; j++)
-			map_setcell(m, j, i, CELL_NPC, false);
+			map[m].setcell(m, j, i, CELL_NPC, false);
 
 	//Re-deploy NPC cells for other nearby npcs.
 	map_foreachinarea( npc_unsetcells_sub, m, x0, y0, x1, y1, BL_NPC, nd->bl.id );
@@ -2910,7 +2874,7 @@ int npc_do_atcmd_event(struct map_session_data* sd, const char* command, const c
 		return 1;
 	}
 
-	if( ev->nd->sc.option&OPTION_INVISIBLE ) { // Disabled npc, shouldn't trigger event.
+	if( ev->nd->option&OPTION_INVISIBLE ) { // Disabled npc, shouldn't trigger event.
 		npc_event_dequeue(sd);
 		return 2;
 	}
@@ -2994,8 +2958,7 @@ void npc_parse_mob2(struct spawn_data* mob)
 {
 	int i;
 
-	for( i = mob->active; i < mob->num; ++i )
-	{
+	for( i = mob->active; i < mob->num; ++i ) {
 		struct mob_data* md = mob_spawn_dataset(mob);
 		md->spawn = mob;
 		md->spawn->active++;
@@ -3150,19 +3113,17 @@ static const char* npc_parse_mob(char* w1, char* w2, char* w3, char* w4, const c
 	memcpy(data, &mob, sizeof(struct spawn_data));
 
 	// spawn / cache the new mobs
-	if( battle_config.dynamic_mobs && map_addmobtolist(data->m, data) >= 0 )
-	{
+	if( battle_config.dynamic_mobs && map_addmobtolist(data->m, data) >= 0 ) {
 		data->state.dynamic = true;
 		npc_cache_mob += data->num;
 
 		// check if target map has players
 		// (usually shouldn't occur when map server is just starting,
 		// but not the case when we do @reloadscript
-		if( map[data->m].users > 0 )
+		if( map[data->m].users > 0 ) {
 			npc_parse_mob2(data);
-	}
-	else
-	{
+		}
+	} else {
 		data->state.dynamic = false;
 		npc_parse_mob2(data);
 		npc_delay_mob += data->num;
@@ -3282,16 +3243,11 @@ const char* npc_parse_mapflag(char* w1, char* w2, char* w3, char* w4, const char
 			else if (!strcmpi(drop_arg2,"all"))
 				drop_type = 3;
 
-			if (drop_id != 0){
-				int i;
-				for (i = 0; i < MAX_DROP_PER_MAP; i++) {
-					if (map[m].drop_list[i].drop_id == 0){
-						map[m].drop_list[i].drop_id = drop_id;
-						map[m].drop_list[i].drop_type = drop_type;
-						map[m].drop_list[i].drop_per = drop_per;
-						break;
-					}
-				}
+			if (drop_id != 0) {
+				RECREATE(map[m].drop_list, struct map_drop_list, ++map[m].drop_list_count);
+				map[m].drop_list[map[m].drop_list_count-1].drop_id = drop_id;
+				map[m].drop_list[map[m].drop_list_count-1].drop_type = drop_type;
+				map[m].drop_list[map[m].drop_list_count-1].drop_per = drop_per;
 				map[m].flag.pvp_nightmaredrop = 1;
 			}
 		} else if (!state) //Disable
@@ -3892,10 +3848,7 @@ int npc_reload(void) {
 		"\t-'"CL_WHITE"%d"CL_RESET"' Mobs Not Cached\n",
 		npc_id - npc_new_min, npc_warp, npc_shop, npc_script, npc_mob, npc_cache_mob, npc_delay_mob);
 	
-	do_final_instance();
-
-	for( i = 0; i < ARRAYLENGTH(instance); ++i )
-		instance_init(instance[i].instance_id);
+	instance->final();
 
 	map_zone_init();
 	
@@ -4002,8 +3955,18 @@ int do_init_npc(void)
 	struct npc_src_list *file;
 	int i;
 
+	memset(&npc_base_ud, 0, sizeof( struct unit_data) );
+	npc_base_ud.bl             = NULL;
+	npc_base_ud.walktimer      = INVALID_TIMER;
+	npc_base_ud.skilltimer     = INVALID_TIMER;
+	npc_base_ud.attacktimer    = INVALID_TIMER;
+	npc_base_ud.attackabletime =
+	npc_base_ud.canact_tick    =
+	npc_base_ud.canmove_tick   = gettick();
+	
 	//Stock view data for normal npcs.
 	memset(&npc_viewdb, 0, sizeof(npc_viewdb));
+
 	npc_viewdb[0].class_ = INVISIBLE_CLASS; //Invisible class is stored here.
 	for( i = 1; i < MAX_NPC_CLASS; i++ )
 		npc_viewdb[i].class_ = i;
@@ -4030,7 +3993,7 @@ int do_init_npc(void)
 		"\t-'"CL_WHITE"%d"CL_RESET"' Mobs Cached\n"
 		"\t-'"CL_WHITE"%d"CL_RESET"' Mobs Not Cached\n",
 		npc_id - START_NPC_NUM, npc_warp, npc_shop, npc_script, npc_mob, npc_cache_mob, npc_delay_mob);
-
+	
 	map_zone_init();
 	
 	npc->motd = npc_name2id("HerculesMOTD"); /* [Ind/Hercules] */
@@ -4068,6 +4031,6 @@ int do_init_npc(void)
 }
 void npc_defaults(void) {
 	npc = &npc_s;
-	
+
 	npc->motd = NULL;
 }
diff --git a/src/map/npc.h b/src/map/npc.h
index 8a8b14d6e..16e6fe74c 100644
--- a/src/map/npc.h
+++ b/src/map/npc.h
@@ -12,6 +12,7 @@ struct block_list;
 struct npc_data;
 struct view_data;
 
+struct unit_data npc_base_ud;
 
 struct npc_timerevent_list {
 	int timer,pos;
@@ -26,9 +27,9 @@ struct npc_item_list {
 
 struct npc_data {
 	struct block_list bl;
-	struct unit_data  ud; //Because they need to be able to move....
+	struct unit_data *ud;
 	struct view_data *vd;
-	struct status_change sc; //They can't have status changes, but.. they want the visual opt values.
+	unsigned int option;
 	struct npc_data *master_nd;
 	short class_;
 	short speed;
@@ -37,12 +38,13 @@ struct npc_data {
 	int chat_id;
 	int touching_id;
 	unsigned int next_walktime;
-
+	uint8 dir;
+	
 	unsigned size : 2;
 
 	struct status_data status;
-	unsigned int level;
-	unsigned int stat_point;
+	unsigned short level;
+	unsigned short stat_point;
 
 	void* chatdb; // pointer to a npc_parse struct (see npc_chat.c)
 	char* path;/* path dir */
diff --git a/src/map/packets.h b/src/map/packets.h
index 7e14305b7..92df54367 100644
--- a/src/map/packets.h
+++ b/src/map/packets.h
@@ -1869,6 +1869,10 @@ packet(0x020d,-1);
 	packet(0x0838,6,clif->pSolveCharName,2);
 	packet(0x0439,8,clif->pUseItem,2,4);
 	packet(0x08d2,10);
+	packet(0x08d7,28,clif->pBGQueueRegister,2);
+	packet(0x090a,26,clif->pBGQueueCheckState,2);
+	packet(0x08da,26,clif->pBGQueueRevokeReq,2);
+	packet(0x08e0,51,clif->pBGQueueBattleBeginAck,2);
 #endif
 
 //2011-11-02aRagexe
@@ -1985,7 +1989,6 @@ packet(0x020d,-1);
 	packet(0x08FB,6,clif->pDull,2); //bookingcanceljoinparty
 	packet(0x0907,5,clif->pMoveItem,2,4);
 	packet(0x0908,5);
-	packet(0x08D7,28,clif->pDull,2,4); //battlegroundreg
 	packet(0x08CF,10);//Amulet spirits
 	packet(0x0977,14);//Monster HP Bar
 #endif
diff --git a/src/map/packets_struct.h b/src/map/packets_struct.h
index c873d3ad3..9d1f9b280 100644
--- a/src/map/packets_struct.h
+++ b/src/map/packets_struct.h
@@ -87,6 +87,15 @@ enum packet_headers {
 #else
 	unit_walkingType = 0x914,
 #endif
+	bgqueue_ackType = 0x8d8,
+	bgqueue_notice_deleteType = 0x8db,
+	bgqueue_registerType = 0x8d7,
+	bgqueue_updateinfoType = 0x8d9,
+	bgqueue_checkstateType = 0x90a,
+	bgqueue_revokereqType = 0x8da,
+	bgqueue_battlebeginackType = 0x8e0,
+	bgqueue_notify_entryType = 0x8d9,
+	bgqueue_battlebegins = 0x8df,
 #if PACKETVER > 20130000 /* not sure date */
 	dropflooritemType = 0x84b,
 #else
@@ -391,6 +400,59 @@ struct packet_maptypeproperty2 {
 	} flag;
 } __attribute__((packed));
 
+struct packet_bgqueue_ack {
+	short PacketType;
+	short type;
+	char bg_name[NAME_LENGTH];
+} __attribute__((packed));
+
+struct packet_bgqueue_notice_delete {
+	short PacketType;
+	short type;
+	char bg_name[NAME_LENGTH];
+} __attribute__((packed));
+
+struct packet_bgqueue_register {
+	short PacketType;
+	short type;
+	char bg_name[NAME_LENGTH];
+} __attribute__((packed));
+
+struct packet_bgqueue_update_info {
+	short PacketType;
+	char bg_name[NAME_LENGTH];
+	int	position;
+} __attribute__((packed));
+
+struct packet_bgqueue_checkstate {
+	short PacketType;
+	char bg_name[NAME_LENGTH];
+} __attribute__((packed));
+
+struct packet_bgqueue_revoke_req {
+	short PacketType;
+	char bg_name[NAME_LENGTH];
+} __attribute__((packed));
+
+struct packet_bgqueue_battlebegin_ack {
+	short PacketType;
+	short result;
+	char bg_name[NAME_LENGTH];
+	char game_name[NAME_LENGTH];
+} __attribute__((packed));
+
+struct packet_bgqueue_notify_entry {
+	short PacketType;
+	char name[NAME_LENGTH];
+	int position;
+} __attribute__((packed));
+
+struct packet_bgqueue_battlebegins {
+	short PacketType;
+	char bg_name[NAME_LENGTH];
+	char game_name[NAME_LENGTH];
+} __attribute__((packed));
+
 #pragma pack(pop)
 
 #endif /* _PACKETS_STRUCT_H_ */
diff --git a/src/map/party.c b/src/map/party.c
index 8a632a8ef..4462d4f07 100644
--- a/src/map/party.c
+++ b/src/map/party.c
@@ -50,8 +50,6 @@ static void party_fill_member(struct party_member* member, struct map_session_da
 	member->online     = 1;
 	member->leader     = leader;
 }
-
-
 /// Get the member_id of a party member.
 /// Return -1 if not in party.
 int party_getmemberid(struct party_data* p, struct map_session_data* sd)
@@ -101,14 +99,21 @@ static TBL_PC* party_sd_check(int party_id, int account_id, int char_id)
 
 	return sd;
 }
-
+int party_db_final(DBKey key, DBData *data, va_list ap) {
+	struct party_data *p;
+	
+	if( ( p = DB->data2ptr(data) ) && p->instance )
+		aFree(p->instance);
+	
+	return 0;
+}
 /*==========================================
  * Destructor
  * Called in map shutdown, cleanup var
  *------------------------------------------*/
 void do_final_party(void)
 {
-	party_db->destroy(party_db,NULL);
+	party_db->destroy(party_db,party_db_final);
 	party_booking_db->destroy(party_booking_db,NULL); // Party Booking [Spiria]
 }
 // Constructor, init vars
@@ -251,16 +256,14 @@ int party_recv_info(struct party* sp, int char_id)
 	int removed_count = 0;
 	int added[MAX_PARTY];// member_id in new data
 	int added_count = 0;
-	int i;
+	int i,j;
 	int member_id;
 
 	nullpo_ret(sp);
 
 	p = (struct party_data*)idb_get(party_db, sp->party_id);
-	if( p != NULL )// diff members
-	{
-		for( member_id = 0; member_id < MAX_PARTY; ++member_id )
-		{
+	if( p != NULL ) {// diff members
+		for( member_id = 0; member_id < MAX_PARTY; ++member_id ) {
 			member = &p->party.member[member_id];
 			if( member->char_id == 0 )
 				continue;// empty
@@ -270,8 +273,7 @@ int party_recv_info(struct party* sp, int char_id)
 			if( i == MAX_PARTY )
 				removed[removed_count++] = member_id;
 		}
-		for( member_id = 0; member_id < MAX_PARTY; ++member_id )
-		{
+		for( member_id = 0; member_id < MAX_PARTY; ++member_id ) {
 			member = &sp->member[member_id];
 			if( member->char_id == 0 )
 				continue;// empty
@@ -281,17 +283,16 @@ int party_recv_info(struct party* sp, int char_id)
 			if( i == MAX_PARTY )
 				added[added_count++] = member_id;
 		}
-	}
-	else
-	{
+	} else {
 		for( member_id = 0; member_id < MAX_PARTY; ++member_id )
 			if( sp->member[member_id].char_id != 0 )
 				added[added_count++] = member_id;
 		CREATE(p, struct party_data, 1);
+		p->instance = NULL;
+		p->instances = 0;
 		idb_put(party_db, sp->party_id, p);
 	}
-	while( removed_count > 0 )// no longer in party
-	{
+	while( removed_count > 0 ) {// no longer in party
 		member_id = removed[--removed_count];
 		sd = p->data[member_id].sd;
 		if( sd == NULL )
@@ -301,16 +302,14 @@ int party_recv_info(struct party* sp, int char_id)
 	memcpy(&p->party, sp, sizeof(struct party));
 	memset(&p->state, 0, sizeof(p->state));
 	memset(&p->data, 0, sizeof(p->data));
-	for( member_id = 0; member_id < MAX_PARTY; member_id++ )
-	{
+	for( member_id = 0; member_id < MAX_PARTY; member_id++ ) {
 		member = &p->party.member[member_id];
 		if ( member->char_id == 0 )
 			continue;// empty
 		p->data[member_id].sd = party_sd_check(sp->party_id, member->account_id, member->char_id);
 	}
 	party_check_state(p);
-	while( added_count > 0 )// new in party
-	{
+	while( added_count > 0 ) { // new in party
 		member_id = added[--added_count];
 		sd = p->data[member_id].sd;
 		if( sd == NULL )
@@ -319,8 +318,12 @@ int party_recv_info(struct party* sp, int char_id)
 		clif->party_member_info(p,sd);
 		clif->party_option(p,sd,0x100);
 		clif->party_info(p,NULL);
-		if( p->instance_id != 0 )
-			clif->instance_join(sd->fd, p->instance_id);
+		for( j = 0; j < p->instances; j++ ) {
+			if( instances[p->instance[j]].idle_timer == INVALID_TIMER && instances[p->instance[j]].progress_timer == INVALID_TIMER )
+				continue;
+			clif->instance_join(sd->fd, p->instance[j]);
+			break;
+		}
 	}
 	if( char_id != 0 )// requester
 	{
@@ -429,19 +432,21 @@ void party_member_joined(struct map_session_data *sd)
 {
 	struct party_data* p = party_search(sd->status.party_id);
 	int i;
-	if (!p)
-	{
+	if (!p) {
 		party_request_info(sd->status.party_id, sd->status.char_id);
 		return;
 	}
 	ARR_FIND( 0, MAX_PARTY, i, p->party.member[i].account_id == sd->status.account_id && p->party.member[i].char_id == sd->status.char_id );
-	if (i < MAX_PARTY)
-	{
+	if (i < MAX_PARTY) {
+		int j;
 		p->data[i].sd = sd;
-		if( p->instance_id )
-			clif->instance_join(sd->fd,p->instance_id);
-	}
-	else
+		for( j = 0; j < p->instances; j++ ) {
+			if( instances[p->instance[j]].idle_timer == INVALID_TIMER && instances[p->instance[j]].progress_timer == INVALID_TIMER )
+				continue;
+			clif->instance_join(sd->fd, p->instance[j]);
+			break;
+		}
+	} else
 		sd->status.party_id = 0; //He does not belongs to the party really?
 }
 
@@ -451,7 +456,7 @@ int party_member_added(int party_id,int account_id,int char_id, int flag)
 {
 	struct map_session_data *sd = map_id2sd(account_id),*sd2;
 	struct party_data *p = party_search(party_id);
-	int i;
+	int i, j;
 
 	if(sd == NULL || sd->status.char_id != char_id || !sd->party_joining ) {
 		if (!flag) //Char logged off before being accepted into party.
@@ -496,9 +501,13 @@ int party_member_added(int party_id,int account_id,int char_id, int flag)
 	clif->party_xy(sd);
 	clif->charnameupdate(sd); //Update char name's display [Skotlex]
 
-	if( p->instance_id )
-		clif->instance_join(sd->fd, p->instance_id);
-
+	for( j = 0; j < p->instances; j++ ) {
+		if( instances[p->instance[j]].idle_timer == INVALID_TIMER && instances[p->instance[j]].progress_timer == INVALID_TIMER )
+			continue;
+		clif->instance_join(sd->fd, p->instance[j]);
+		break;
+	}
+	
 	return 0;
 }
 
@@ -551,12 +560,10 @@ int party_member_withdraw(int party_id, int account_id, int char_id)
 	struct map_session_data* sd = map_id2sd(account_id);
 	struct party_data* p = party_search(party_id);
 
-	if( p )
-	{
+	if( p ) {
 		int i;
 		ARR_FIND( 0, MAX_PARTY, i, p->party.member[i].account_id == account_id && p->party.member[i].char_id == char_id );
-		if( i < MAX_PARTY )
-		{
+		if( i < MAX_PARTY ) {
 			clif->party_withdraw(p,sd,account_id,p->party.member[i].name,0x0);
 			memset(&p->party.member[i], 0, sizeof(p->party.member[0]));
 			memset(&p->data[i], 0, sizeof(p->data[0]));
@@ -565,13 +572,12 @@ int party_member_withdraw(int party_id, int account_id, int char_id)
 		}
 	}
 
-	if( sd && sd->status.party_id == party_id && sd->status.char_id == char_id )
-	{
+	if( sd && sd->status.party_id == party_id && sd->status.char_id == char_id ) {
 		sd->status.party_id = 0;
 		clif->charnameupdate(sd); //Update name display [Skotlex]
 		//TODO: hp bars should be cleared too
-		if( p->instance_id )
-			instance_check_kick(sd);
+		if( p->instances )
+			instance->check_kick(sd);
 	}
 
 	return 0;
@@ -581,22 +587,19 @@ int party_member_withdraw(int party_id, int account_id, int char_id)
 int party_broken(int party_id)
 {
 	struct party_data* p;
-	int i;
+	int i, j;
 
 	p = party_search(party_id);
 	if( p == NULL )
 		return 0;
 
-	if( p->instance_id )
-	{
-		instance[p->instance_id].party_id = 0;
-		instance_destroy( p->instance_id );
+	for( j = 0; j < p->instances; j++ ) {
+		instance->destroy( p->instance[j] );
+		instances[p->instance[j]].owner_id = 0;
 	}
-
-	for( i = 0; i < MAX_PARTY; i++ )
-	{
-		if( p->data[i].sd!=NULL )
-		{
+	
+	for( i = 0; i < MAX_PARTY; i++ ) {
+		if( p->data[i].sd!=NULL ) {
 			clif->party_withdraw(p,p->data[i].sd,p->party.member[i].account_id,p->party.member[i].name,0x10);
 			p->data[i].sd->status.party_id=0;
 		}
diff --git a/src/map/party.h b/src/map/party.h
index 12fe7a2bc..3978324e4 100644
--- a/src/map/party.h
+++ b/src/map/party.h
@@ -25,7 +25,8 @@ struct party_data {
 	struct party party;
 	struct party_member_data data[MAX_PARTY];
 	uint8 itemc; //For item distribution, position of last picker in party
-	unsigned int instance_id;
+	unsigned short *instance;
+	unsigned short instances;
 	struct {
 		unsigned monk : 1; //There's at least one monk in party?
 		unsigned sg : 1;	//There's at least one Star Gladiator in party?
diff --git a/src/map/path.c b/src/map/path.c
index 3bbd8d20b..8ab63d390 100644
--- a/src/map/path.c
+++ b/src/map/path.c
@@ -167,12 +167,10 @@ int path_blownpos(int16 m,int16 x0,int16 y0,int16 dx,int16 dy,int count)
 		dy=(dy>0)?1:((dy<0)?-1:0);
 	}
 
-	while( count > 0 && (dx != 0 || dy != 0) )
-	{
-		if( !map_getcellp(md,x0+dx,y0+dy,CELL_CHKPASS) )
-		{// attempt partial movement
-			int fx = ( dx != 0 && map_getcellp(md,x0+dx,y0,CELL_CHKPASS) );
-			int fy = ( dy != 0 && map_getcellp(md,x0,y0+dy,CELL_CHKPASS) );
+	while( count > 0 && (dx != 0 || dy != 0) ) {
+		if( !md->getcellp(md,x0+dx,y0+dy,CELL_CHKPASS) ) {// attempt partial movement
+			int fx = ( dx != 0 && md->getcellp(md,x0+dx,y0,CELL_CHKPASS) );
+			int fy = ( dy != 0 && md->getcellp(md,x0,y0+dy,CELL_CHKPASS) );
 			if( fx && fy )
 			{
 				if(rnd()&1)
@@ -225,7 +223,7 @@ bool path_search_long(struct shootpath_data *spd,int16 m,int16 x0,int16 y0,int16
 	spd->x[0] = x0;
 	spd->y[0] = y0;
 
-	if (map_getcellp(md,x1,y1,cell))
+	if (md->getcellp(md,x1,y1,cell))
 		return false;
 
 	if (dx > abs(dy)) {
@@ -238,7 +236,7 @@ bool path_search_long(struct shootpath_data *spd,int16 m,int16 x0,int16 y0,int16
 
 	while (x0 != x1 || y0 != y1)
 	{
-		if (map_getcellp(md,x0,y0,cell))
+		if (md->getcellp(md,x0,y0,cell))
 			return false;
 		wx += dx;
 		wy += dy;
@@ -290,10 +288,10 @@ bool path_search(struct walkpath_data *wpd,int16 m,int16 x0,int16 y0,int16 x1,in
 	//Do not check starting cell as that would get you stuck.
 	if( x0 < 0 || x0 >= md->xs || y0 < 0 || y0 >= md->ys )
 #else
-	if( x0 < 0 || x0 >= md->xs || y0 < 0 || y0 >= md->ys /*|| map_getcellp(md,x0,y0,cell)*/ )
+	if( x0 < 0 || x0 >= md->xs || y0 < 0 || y0 >= md->ys /*|| md->getcellp(md,x0,y0,cell)*/ )
 #endif
 		return false;
-	if( x1 < 0 || x1 >= md->xs || y1 < 0 || y1 >= md->ys || map_getcellp(md,x1,y1,cell) )
+	if( x1 < 0 || x1 >= md->xs || y1 < 0 || y1 >= md->ys || md->getcellp(md,x1,y1,cell) )
 		return false;
 
 	// calculate (sgn(x1-x0), sgn(y1-y0))
@@ -317,7 +315,7 @@ bool path_search(struct walkpath_data *wpd,int16 m,int16 x0,int16 y0,int16 x1,in
 
 		if( dx == 0 && dy == 0 )
 			break; // success
-		if( map_getcellp(md,x,y,cell) )
+		if( md->getcellp(md,x,y,cell) )
 			break; // obstacle = failure
 	}
 
@@ -365,29 +363,29 @@ bool path_search(struct walkpath_data *wpd,int16 m,int16 x0,int16 y0,int16 x1,in
 		// dc[2] : y--
 		// dc[3] : x++
 
-		if(y < ys && !map_getcellp(md,x  ,y+1,cell)) {
+		if(y < ys && !md->getcellp(md,x  ,y+1,cell)) {
 			f |= 1; dc[0] = (y >= y1 ? 20 : 0);
 			e+=add_path(heap,tp,x  ,y+1,dist,rp,cost+dc[0]); // (x,   y+1)
 		}
-		if(x > 0  && !map_getcellp(md,x-1,y  ,cell)) {
+		if(x > 0  && !md->getcellp(md,x-1,y  ,cell)) {
 			f |= 2; dc[1] = (x <= x1 ? 20 : 0);
 			e+=add_path(heap,tp,x-1,y  ,dist,rp,cost+dc[1]); // (x-1, y  )
 		}
-		if(y > 0  && !map_getcellp(md,x  ,y-1,cell)) {
+		if(y > 0  && !md->getcellp(md,x  ,y-1,cell)) {
 			f |= 4; dc[2] = (y <= y1 ? 20 : 0);
 			e+=add_path(heap,tp,x  ,y-1,dist,rp,cost+dc[2]); // (x  , y-1)
 		}
-		if(x < xs && !map_getcellp(md,x+1,y  ,cell)) {
+		if(x < xs && !md->getcellp(md,x+1,y  ,cell)) {
 			f |= 8; dc[3] = (x >= x1 ? 20 : 0);
 			e+=add_path(heap,tp,x+1,y  ,dist,rp,cost+dc[3]); // (x+1, y  )
 		}
-		if( (f & (2+1)) == (2+1) && !map_getcellp(md,x-1,y+1,cell))
+		if( (f & (2+1)) == (2+1) && !md->getcellp(md,x-1,y+1,cell))
 			e+=add_path(heap,tp,x-1,y+1,dist+4,rp,cost+dc[1]+dc[0]-6);		// (x-1, y+1)
-		if( (f & (2+4)) == (2+4) && !map_getcellp(md,x-1,y-1,cell))
+		if( (f & (2+4)) == (2+4) && !md->getcellp(md,x-1,y-1,cell))
 			e+=add_path(heap,tp,x-1,y-1,dist+4,rp,cost+dc[1]+dc[2]-6);		// (x-1, y-1)
-		if( (f & (8+4)) == (8+4) && !map_getcellp(md,x+1,y-1,cell))
+		if( (f & (8+4)) == (8+4) && !md->getcellp(md,x+1,y-1,cell))
 			e+=add_path(heap,tp,x+1,y-1,dist+4,rp,cost+dc[3]+dc[2]-6);		// (x+1, y-1)
-		if( (f & (8+1)) == (8+1) && !map_getcellp(md,x+1,y+1,cell))
+		if( (f & (8+1)) == (8+1) && !md->getcellp(md,x+1,y+1,cell))
 			e+=add_path(heap,tp,x+1,y+1,dist+4,rp,cost+dc[3]+dc[0]-6);		// (x+1, y+1)
 		tp[rp].flag=1;
 		if(e || heap[0]>=MAX_HEAP-5)
diff --git a/src/map/pc.c b/src/map/pc.c
index 55ce993b4..241e0fbb3 100644
--- a/src/map/pc.c
+++ b/src/map/pc.c
@@ -518,8 +518,7 @@ int pc_makesavestatus(struct map_session_data *sd)
 #else
 	sd->status.option = sd->sc.option&(OPTION_INVISIBLE|OPTION_CART|OPTION_FALCON|OPTION_RIDING|OPTION_DRAGON|OPTION_WUG|OPTION_WUGRIDER|OPTION_MADOGEAR);
 #endif
-	if (sd->sc.data[SC_JAILED])
-	{	//When Jailed, do not move last point.
+	if (sd->sc.data[SC_JAILED]) { //When Jailed, do not move last point.
 		if(pc_isdead(sd)){
 			pc_setrestartvalue(sd,0);
 		} else {
@@ -543,13 +542,25 @@ int pc_makesavestatus(struct map_session_data *sd)
 		sd->status.last_point.y = sd->bl.y;
 	}
 
-	if(map[sd->bl.m].flag.nosave){
+	if(map[sd->bl.m].flag.nosave || map[sd->bl.m].instance_id >= 0){
 		struct map_data *m=&map[sd->bl.m];
 		if(m->save.map)
 			memcpy(&sd->status.last_point,&m->save,sizeof(sd->status.last_point));
 		else
 			memcpy(&sd->status.last_point,&sd->status.save_point,sizeof(sd->status.last_point));
 	}
+	if( sd->status.last_point.map == 0 ) {
+		sd->status.last_point.map = 1;
+		sd->status.last_point.x = 0;
+		sd->status.last_point.y = 0;
+	}
+	
+	if( sd->status.save_point.map == 0 ) {
+		sd->status.save_point.map = 1;
+		sd->status.save_point.x = 0;
+		sd->status.save_point.y = 0;
+	}
+
 
 	return 0;
 }
@@ -905,8 +916,7 @@ int pc_isequip(struct map_session_data *sd,int n)
  * No problem with the session id
  * set the status that has been sent from char server
  *------------------------------------------*/
-bool pc_authok(struct map_session_data *sd, int login_id2, time_t expiration_time, int group_id, struct mmo_charstatus *st, bool changing_mapservers)
-{
+bool pc_authok(struct map_session_data *sd, int login_id2, time_t expiration_time, int group_id, struct mmo_charstatus *st, bool changing_mapservers) {
 	int i;
 	unsigned long tick = gettick();
 	uint32 ip = session[sd->fd]->client_addr;
@@ -1014,6 +1024,17 @@ bool pc_authok(struct map_session_data *sd, int login_id2, time_t expiration_tim
 
 	sd->disguise = -1;
 	
+	sd->instance = NULL;
+	sd->instances = 0;
+	
+	sd->bg_queue.arena = NULL;
+	sd->bg_queue.ready = 0;
+	sd->bg_queue.client_has_bg_data = 0;
+	sd->bg_queue.type = 0;
+	
+	sd->queues = NULL;
+	sd->queues_count = 0;
+	
 	// Event Timers
 	for( i = 0; i < MAX_EVENTTIMER; i++ )
 		sd->eventtimer[i] = INVALID_TIMER;
@@ -1075,7 +1096,7 @@ bool pc_authok(struct map_session_data *sd, int login_id2, time_t expiration_tim
 		/**
 		 * Fixes login-without-aura glitch (the screen won't blink at this point, don't worry :P)
 		 **/
-		clif->changemap(sd,sd->mapindex,sd->bl.x,sd->bl.y);
+		clif->changemap(sd,sd->bl.m,sd->bl.x,sd->bl.y);
 	}
 
 	/**
@@ -4680,36 +4701,62 @@ int pc_steal_coin(struct map_session_data *sd,struct block_list *target)
  * 1 - Invalid map index.
  * 2 - Map not in this map-server, and failed to locate alternate map-server.
  *------------------------------------------*/
-int pc_setpos(struct map_session_data* sd, unsigned short mapindex, int x, int y, clr_type clrtype)
-{
-	struct party_data *p;
+int pc_setpos(struct map_session_data* sd, unsigned short mapindex, int x, int y, clr_type clrtype) {
 	int16 m;
 
 	nullpo_ret(sd);
 
-	if( !mapindex || !mapindex_id2name(mapindex) )
-	{
+	if( !mapindex || !mapindex_id2name(mapindex) ) {
 		ShowDebug("pc_setpos: Passed mapindex(%d) is invalid!\n", mapindex);
 		return 1;
 	}
 
-	if( pc_isdead(sd) )
-	{ //Revive dead people before warping them
+	if( pc_isdead(sd) ) { //Revive dead people before warping them
 		pc_setstand(sd);
 		pc_setrestartvalue(sd,1);
 	}
-
 	m = map_mapindex2mapid(mapindex);
-	if( map[m].flag.src4instance && sd->status.party_id && (p = party_search(sd->status.party_id)) != NULL && p->instance_id )
-	{
-		// Request the mapid of this src map into the instance of the party
-		int im = instance_map2imap(m, p->instance_id);
-		if( im < 0 )
-			; // Player will enter the src map for instances
-		else
-		{ // Changes destiny to the instance map, not the source map
-			m = im;
-			mapindex = map_id2index(m);
+
+	if( map[m].flag.src4instance ) {
+		struct party_data *p;
+		bool stop = false;
+		int i = 0, j = 0;
+
+		if( sd->instances ) {
+			for( i = 0; i < sd->instances; i++ ) {
+				ARR_FIND(0, instances[sd->instance[i]].num_map, j, map[instances[sd->instance[i]].map[j]].instance_src_map == m && !map[instances[sd->instance[i]].map[j]].cName);
+				if( j != instances[sd->instance[i]].num_map )
+					break;
+			}
+			if( i != sd->instances ) {
+				m = instances[sd->instance[i]].map[j];
+				mapindex = map[m].index;
+				stop = true;
+			}
+		}
+		if ( !stop && sd->status.party_id && (p = party_search(sd->status.party_id)) && p->instances ) {
+			for( i = 0; i < p->instances; i++ ) {
+				ARR_FIND(0, instances[p->instance[i]].num_map, j, map[instances[p->instance[i]].map[j]].instance_src_map == m && !map[instances[p->instance[i]].map[j]].cName);
+				if( j != instances[p->instance[i]].num_map )
+					break;
+			}
+			if( i != p->instances ) {
+				m = instances[p->instance[i]].map[j];
+				mapindex = map[m].index;
+				stop = true;
+			}
+		}
+		if ( !stop && sd->status.guild_id && sd->guild && sd->guild->instances ) {
+			for( i = 0; i < sd->guild->instances; i++ ) {
+				ARR_FIND(0, instances[sd->guild->instance[i]].num_map, j, map[instances[sd->guild->instance[i]].map[j]].instance_src_map == m && !map[instances[sd->guild->instance[i]].map[j]].cName);
+				if( j != instances[sd->guild->instance[i]].num_map )
+					break;
+			}
+			if( i != sd->guild->instances ) {
+				m = instances[sd->guild->instance[i]].map[j];
+				mapindex = map[m].index;
+				stop = true;
+			}
 		}
 	}
 
@@ -4718,6 +4765,17 @@ int pc_setpos(struct map_session_data* sd, unsigned short mapindex, int x, int y
 	if( sd->state.changemap ) { // Misc map-changing settings
 		int i;
 		sd->state.pmap = sd->bl.m;
+		
+		for( i = 0; i < sd->queues_count; i++ ) {
+			struct hQueue *queue;
+			if( (queue = script->queue(sd->queues[i])) && queue->onMapChange[0] != '\0' ) {
+				pc_setregstr(sd, add_str("QMapChangeTo"), map[m].name);
+				npc_event(sd, queue->onMapChange, 0);
+			}
+		}
+		
+		if( map[m].cell == (struct mapcell *)0xdeadbeaf )
+			map_cellfromcache(&map[m]);
 		if (sd->sc.count) { // Cancel some map related stuff.
 			if (sd->sc.data[SC_JAILED])
 				return 1; //You may not get out!
@@ -4761,8 +4819,7 @@ int pc_setpos(struct map_session_data* sd, unsigned short mapindex, int x, int y
 		
 	}
 
-	if( m < 0 )
-	{
+	if( m < 0 ) {
 		uint32 ip;
 		uint16 port;
 		//if can't find any map-servers, just abort setting position.
@@ -4787,14 +4844,12 @@ int pc_setpos(struct map_session_data* sd, unsigned short mapindex, int x, int y
 		return 0;
 	}
 
-	if( x < 0 || x >= map[m].xs || y < 0 || y >= map[m].ys )
-	{
+	if( x < 0 || x >= map[m].xs || y < 0 || y >= map[m].ys ) {
 		ShowError("pc_setpos: attempt to place player %s (%d:%d) on invalid coordinates (%s-%d,%d)\n", sd->status.name, sd->status.account_id, sd->status.char_id, mapindex_id2name(mapindex),x,y);
 		x = y = 0; // make it random
 	}
 
-	if( x == 0 && y == 0 )
-	{// pick a random walkable cell
+	if( x == 0 && y == 0 ) {// pick a random walkable cell
 		do {
 			x=rnd()%(map[m].xs-2)+1;
 			y=rnd()%(map[m].ys-2)+1;
@@ -4808,7 +4863,7 @@ int pc_setpos(struct map_session_data* sd, unsigned short mapindex, int x, int y
 
 	if(sd->bl.prev != NULL){
 		unit_remove_map_pc(sd,clrtype);
-		clif->changemap(sd,map[m].index,x,y); // [MouseJstr]
+		clif->changemap(sd,m,x,y); // [MouseJstr]
 	} else if(sd->state.active)
 		//Tag player for rewarping after map-loading is done. [Skotlex]
 		sd->state.rewarp = 1;
@@ -4818,31 +4873,27 @@ int pc_setpos(struct map_session_data* sd, unsigned short mapindex, int x, int y
 	sd->bl.x = sd->ud.to_x = x;
 	sd->bl.y = sd->ud.to_y = y;
 
-	if( sd->status.guild_id > 0 && map[m].flag.gvg_castle )
-	{	// Increased guild castle regen [Valaris]
+	if( sd->status.guild_id > 0 && map[m].flag.gvg_castle ) { // Increased guild castle regen [Valaris]
 		struct guild_castle *gc = guild->mapindex2gc(sd->mapindex);
 		if(gc && gc->guild_id == sd->status.guild_id)
 			sd->regen.state.gc = 1;
 	}
 
-	if( sd->status.pet_id > 0 && sd->pd && sd->pd->pet.intimate > 0 )
-	{
+	if( sd->status.pet_id > 0 && sd->pd && sd->pd->pet.intimate > 0 ) {
 		sd->pd->bl.m = m;
 		sd->pd->bl.x = sd->pd->ud.to_x = x;
 		sd->pd->bl.y = sd->pd->ud.to_y = y;
 		sd->pd->ud.dir = sd->ud.dir;
 	}
 
-	if( homun_alive(sd->hd) )
-	{
+	if( homun_alive(sd->hd) ) {
 		sd->hd->bl.m = m;
 		sd->hd->bl.x = sd->hd->ud.to_x = x;
 		sd->hd->bl.y = sd->hd->ud.to_y = y;
 		sd->hd->ud.dir = sd->ud.dir;
 	}
 
-	if( sd->md )
-	{
+	if( sd->md ) {
 		sd->md->bl.m = m;
 		sd->md->bl.x = sd->md->ud.to_x = x;
 		sd->md->bl.y = sd->md->ud.to_y = y;
@@ -6588,15 +6639,22 @@ int pc_dead(struct map_session_data *sd,struct block_list *src)
 	pc_setglobalreg(sd,"PC_DIE_COUNTER",sd->die_counter+1);
 	pc_setparam(sd, SP_KILLERRID, src?src->id:0);
 
-	if( sd->bg_id ) {
+	if( sd->bg_id ) {/* TODO: purge when bgqueue is deemed ok */
 		struct battleground_data *bg;
 		if( (bg = bg_team_search(sd->bg_id)) != NULL && bg->die_event[0] )
 			npc_event(sd, bg->die_event, 0);
 	}
-
+	
+	for( i = 0; i < sd->queues_count; i++ ) {
+		struct hQueue *queue;
+		if( (queue = script->queue(sd->queues[i])) && queue->onDeath[0] != '\0' )
+			npc_event(sd, queue->onDeath, 0);
+	}
+	
+	npc_script_event(sd,NPCE_DIE);
+		
 	// Clear anything NPC-related when you die and was interacting with one.
-	if (sd->npc_id)
-	{
+	if (sd->npc_id) {
 		if (sd->state.using_fake_npc) {
 			clif->clearunit_single(sd->npc_id, CLR_OUTSIGHT, sd->fd);
 			sd->state.using_fake_npc = 0;
@@ -6611,8 +6669,6 @@ int pc_dead(struct map_session_data *sd,struct block_list *src)
 			sd->st->state = END;
 	}
 
-	npc_script_event(sd,NPCE_DIE);
-
 	/* e.g. not killed thru pc_damage */
 	if( pc_issit(sd) ) {
 		clif->sc_end(&sd->bl,sd->bl.id,SELF,SI_SIT);
@@ -6788,7 +6844,7 @@ int pc_dead(struct map_session_data *sd,struct block_list *src)
 
 	if(map[sd->bl.m].flag.pvp_nightmaredrop)
 	{ // Moved this outside so it works when PVP isn't enabled and during pk mode [Ancyker]
-		for(j=0;j<MAX_DROP_PER_MAP;j++){
+		for(j=0;j<map[sd->bl.m].drop_list_count;j++){
 			int id = map[sd->bl.m].drop_list[j].drop_id;
 			int type = map[sd->bl.m].drop_list[j].drop_type;
 			int per = map[sd->bl.m].drop_list[j].drop_per;
diff --git a/src/map/pc.h b/src/map/pc.h
index b1fa3e741..5207c4c34 100644
--- a/src/map/pc.h
+++ b/src/map/pc.h
@@ -10,6 +10,7 @@
 #include "../common/timer.h" // INVALID_TIMER
 #include "atcommand.h" // AtCommandType
 #include "battle.h" // battle_config
+#include "battleground.h"
 #include "buyingstore.h"  // struct s_buyingstore
 #include "itemdb.h" // MAX_ITEMGROUP
 #include "map.h" // RC_MAX
@@ -519,6 +520,20 @@ struct map_session_data {
 	struct sc_display_entry **sc_display;
 	unsigned char sc_display_count;
 	
+	unsigned short *instance;
+	unsigned short instances;
+	
+	/* Possible Thanks to Yommy~! */
+	struct {
+		unsigned int ready : 1;/* did he accept the 'match is about to start, enter' dialog? */
+		unsigned int client_has_bg_data : 1; /* flags whether the client has the "in queue" window (aka the client knows it is in a queue) */
+		struct bg_arena *arena;
+		enum bg_queue_types type;
+	} bg_queue;
+
+	int *queues;
+	unsigned int queues_count;
+	
 	// temporary debugging of bug #3504
 	const char* delunit_prevfile;
 	int delunit_prevline;
diff --git a/src/map/script.c b/src/map/script.c
index 41f8e7472..d42d3d3e3 100644
--- a/src/map/script.c
+++ b/src/map/script.c
@@ -816,10 +816,12 @@ const char* parse_callfunc(const char* p, int require_paren, int is_custom)
 
 	func = add_word(p);
 	if( str_data[func].type == C_FUNC ){
+		char argT = 0;
 		// buildin function
 		add_scriptl(func);
 		add_scriptc(C_ARG);
 		arg = script->buildin[str_data[func].val];
+		if( !arg ) arg = &argT;
 	} else if( str_data[func].type == C_USERFUNC || str_data[func].type == C_USERFUNC_POS ){
 		// script defined function
 		add_scriptl(buildin_callsub_ref);
@@ -2358,8 +2360,8 @@ void get_val(struct script_state* st, struct script_data* data)
 			}
 			break;
 		case '\'':
-				if (st->instance_id) {
-					data->u.str = (char*)idb_get(instance[st->instance_id].vars,reference_getuid(data));
+				if ( st->instance_id >= 0 ) {
+					data->u.str = (char*)idb_get(instances[st->instance_id].vars,reference_getuid(data));
 				} else {
 					ShowWarning("script:get_val: cannot access instance variable '%s', defaulting to \"\"\n", name);
 					data->u.str = NULL;
@@ -2423,8 +2425,8 @@ void get_val(struct script_state* st, struct script_data* data)
 			}
 			break;
 		case '\'':
-				if( st->instance_id )
-					data->u.num = (int)idb_iget(instance[st->instance_id].vars,reference_getuid(data));
+				if( st->instance_id >= 0 )
+					data->u.num = (int)idb_iget(instances[st->instance_id].vars,reference_getuid(data));
 				else {
 					ShowWarning("script:get_val: cannot access instance variable '%s', defaulting to 0\n", name);
 					data->u.num = 0;
@@ -2484,9 +2486,9 @@ static int set_reg(struct script_state* st, TBL_PC* sd, int num, const char* nam
 			}
 			return 1;
 		case '\'':
-			if( st->instance_id ) {
-				idb_remove(instance[st->instance_id].vars, num);
-				if( str[0] ) idb_put(instance[st->instance_id].vars, num, aStrdup(str));
+			if( st->instance_id >= 0 ) {
+				idb_remove(instances[st->instance_id].vars, num);
+				if( str[0] ) idb_put(instances[st->instance_id].vars, num, aStrdup(str));
 			}
 			return 1;
 		default:
@@ -2532,10 +2534,10 @@ static int set_reg(struct script_state* st, TBL_PC* sd, int num, const char* nam
 			}
 			return 1;
 		case '\'':
-			if( st->instance_id ) {
-				idb_remove(instance[st->instance_id].vars, num);
+			if( st->instance_id >= 0 ) {
+				idb_remove(instances[st->instance_id].vars, num);
 				if( val != 0 )
-					idb_iput(instance[st->instance_id].vars, num, val);
+					idb_iput(instances[st->instance_id].vars, num, val);
 			}
 			return 1;
 		default:
@@ -3462,7 +3464,7 @@ void run_script_main(struct script_state *st)
 	script_attach_state(st);
 
 	nd = map_id2nd(st->oid);
-	if( nd && map[nd->bl.m].instance_id > 0 )
+	if( nd )
 		st->instance_id = map[nd->bl.m].instance_id;
 
 	if(st->state == RERUNLINE) {
@@ -3845,9 +3847,25 @@ void do_final_script(void) {
 			script->buildin[i] = NULL;
 		}
 	}
-	
-	aFree(script->buildin);
 
+	aFree(script->buildin);
+	
+	if( script->hqs ) {
+		for( i = 0; i < script->hqs; i++ ) {
+			if( script->hq[i].item != NULL )
+				aFree(script->hq[i].item);
+		}
+	}
+	if( script->hqis ) {
+		for( i = 0; i < script->hqis; i++ ) {
+			if( script->hqi[i].item != NULL )
+				aFree(script->hqi[i].item);
+		}
+	}
+	if( script->hq != NULL )
+		aFree(script->hq);
+	if( script->hqi != NULL )
+		aFree(script->hqi);
 }
 /*==========================================
  * Initialization
@@ -8457,13 +8475,10 @@ BUILDIN(monster)
 	
 	if (sd && strcmp(mapn, "this") == 0)
 		m = sd->bl.m;
-	else
-	{
+	else {
 		m = map_mapname2mapid(mapn);
-		if (map[m].flag.src4instance && st->instance_id)
-		{ // Try to redirect to the instance map, not the src map
-			if ((m = instance_mapid2imapid(m, st->instance_id)) < 0)
-			{
+		if (map[m].flag.src4instance && st->instance_id >= 0) { // Try to redirect to the instance map, not the src map
+			if ((m = instance->mapid2imapid(m, st->instance_id)) < 0) {
 				ShowError("buildin_monster: Trying to spawn monster (%d) on instance map (%s) without instance attached.\n", class_, mapn);
 				return false;
 			}
@@ -8528,27 +8543,22 @@ BUILDIN(areamonster)
 	struct map_session_data* sd;
 	int16 m;
 	
-	if (script_hasdata(st,10))
-	{
+	if (script_hasdata(st,10)) {
 		event = script_getstr(st, 10);
 		check_event(st, event);
 	}
 	
-	if (script_hasdata(st, 11))
-	{
+	if (script_hasdata(st, 11)) {
 		size = script_getnum(st, 11);
-		if (size > 3)
-		{
+		if (size > 3) {
 			ShowWarning("buildin_monster: Attempted to spawn non-existing size %d for monster class %d\n", size, class_);
 			return false;
 		}
 	}
 	
-	if (script_hasdata(st, 12))
-	{
+	if (script_hasdata(st, 12)) {
 		ai = script_getnum(st, 12);
-		if (ai > 4)
-		{
+		if (ai > 4) {
 			ShowWarning("buildin_monster: Attempted to spawn non-existing ai %d for monster class %d\n", ai, class_);
 			return false;
 		}
@@ -8558,13 +8568,10 @@ BUILDIN(areamonster)
 	
 	if (sd && strcmp(mapn, "this") == 0)
 		m = sd->bl.m;
-	else
-	{
+	else {
 		m = map_mapname2mapid(mapn);
-		if (map[m].flag.src4instance && st->instance_id)
-		{ // Try to redirect to the instance map, not the src map
-			if ((m = instance_mapid2imapid(m, st->instance_id)) < 0)
-			{
+		if (map[m].flag.src4instance && st->instance_id >= 0) { // Try to redirect to the instance map, not the src map
+			if ((m = instance->mapid2imapid(m, st->instance_id)) < 0) {
 				ShowError("buildin_areamonster: Trying to spawn monster (%d) on instance map (%s) without instance attached.\n", class_, mapn);
 				return false;
 			}
@@ -8624,7 +8631,7 @@ BUILDIN(killmonster)
 	if( (m=map_mapname2mapid(mapname))<0 )
 		return true;
 	
-	if( map[m].flag.src4instance && st->instance_id && (m = instance_mapid2imapid(m, st->instance_id)) < 0 )
+	if( map[m].flag.src4instance && st->instance_id >= 0 && (m = instance->mapid2imapid(m, st->instance_id)) < 0 )
 		return true;
 	
 	if( script_hasdata(st,4) ) {
@@ -8665,7 +8672,7 @@ BUILDIN(killmonsterall)
 	if( (m = map_mapname2mapid(mapname))<0 )
 		return true;
 	
-	if( map[m].flag.src4instance && st->instance_id && (m = instance_mapid2imapid(m, st->instance_id)) < 0 )
+	if( map[m].flag.src4instance && st->instance_id >= 0 && (m = instance->mapid2imapid(m, st->instance_id)) < 0 )
 		return true;
 	
 	if( script_hasdata(st,3) ) {
@@ -11168,8 +11175,7 @@ BUILDIN(mobcount)	// Added by RoVeRT
 		return true;
 	}
 	
-	if( map[m].flag.src4instance && map[m].instance_id == 0 && st->instance_id && (m = instance_mapid2imapid(m, st->instance_id)) < 0 )
-	{
+	if( map[m].flag.src4instance && map[m].instance_id >= 0 && st->instance_id >= 0 && (m = instance->mapid2imapid(m, st->instance_id)) < 0 ) {
 		script_pushint(st,-1);
 		return true;
 	}
@@ -12491,8 +12497,7 @@ BUILDIN(jump_zero)
 /*==========================================
  * movenpc [MouseJstr]
  *------------------------------------------*/
-BUILDIN(movenpc)
-{
+BUILDIN(movenpc) {
 	TBL_NPC *nd = NULL;
 	const char *npc;
 	int x,y;
@@ -12505,7 +12510,7 @@ BUILDIN(movenpc)
 		return -1;
 	
 	if (script_hasdata(st,5))
-		nd->ud.dir = script_getnum(st,5) % 8;
+		nd->dir = script_getnum(st,5) % 8;
 	npc_movenpc(nd, x, y);
 	return true;
 }
@@ -12559,17 +12564,20 @@ BUILDIN(npcspeed)
 	speed = script_getnum(st,2);
 	nd =(struct npc_data *)map_id2bl(st->oid);
 	
-	if( nd )
-	{
+	if( nd ) {
+		if( nd->ud == &npc_base_ud ) {
+			nd->ud = NULL;
+			CREATE(nd->ud, struct unit_data, 1);
+			unit_dataset(&nd->bl);
+		}
 		nd->speed = speed;
-		nd->ud.state.speed_changed = 1;
+		nd->ud->state.speed_changed = 1;
 	}
 	
 	return true;
 }
 // make an npc walk to a position [Valaris]
-BUILDIN(npcwalkto)
-{
+BUILDIN(npcwalkto) {
 	struct npc_data *nd=(struct npc_data *)map_id2bl(st->oid);
 	int x=0,y=0;
 	
@@ -12577,6 +12585,12 @@ BUILDIN(npcwalkto)
 	y=script_getnum(st,3);
 	
 	if(nd) {
+		if( nd->ud == &npc_base_ud ) {
+			nd->ud = NULL;
+			CREATE(nd->ud, struct unit_data, 1);
+			unit_dataset(&nd->bl);
+		}
+		
 		if (!nd->status.hp) {
 			status_calc_npc(nd, true);
 		} else {
@@ -15341,7 +15355,7 @@ BUILDIN(setcell)
 	
 	for( y = y1; y <= y2; ++y )
 		for( x = x1; x <= x2; ++x )
-			map_setcell(m, x, y, type, flag);
+			map[m].setcell(m, x, y, type, flag);
 	
 	return true;
 }
@@ -15865,25 +15879,28 @@ BUILDIN(bg_get_data)
  * Instancing Script Commands
  *------------------------------------------*/
 
-BUILDIN(instance_create)
-{
+BUILDIN(instance_create) {
 	const char *name;
-	int party_id, res;
+	int owner_id, res;
+	int type = IOT_PARTY;
 	
 	name = script_getstr(st, 2);
-	party_id = script_getnum(st, 3);
+	owner_id = script_getnum(st, 3);
+	if( script_hasdata(st,4) ) {
+		type = script_getnum(st, 4);
+		if( type < IOT_NONE || type >= IOT_MAX ) {
+			ShowError("buildin_instance_create: unknown instance type %d for '%s'\n",type,name);
+			return true;
+		}
+	}
 	
-	res = instance_create(party_id, name);
-	if( res == -4 ) // Already exists
-	{
+	res = instance->create(owner_id, name, (enum instance_owner_type) type);
+	if( res == -4 ) { // Already exists 
 		script_pushint(st, -1);
 		return true;
-	}
-	else if( res < 0 )
-	{
+	} else if( res < 0 ) {
 		const char *err;
-		switch(res)
-		{
+		switch(res) {
 			case -3: err = "No free instances"; break;
 			case -2: err = "Invalid party ID"; break;
 			case -1: err = "Invalid type"; break;
@@ -15898,44 +15915,39 @@ BUILDIN(instance_create)
 	return true;
 }
 
-BUILDIN(instance_destroy)
-{
-	int instance_id;
-	struct map_session_data *sd;
-	struct party_data *p;
+BUILDIN(instance_destroy) {
+	int instance_id = -1;
 	
 	if( script_hasdata(st, 2) )
 		instance_id = script_getnum(st, 2);
-	else if( st->instance_id )
+	else if( st->instance_id >= 0 )
 		instance_id = st->instance_id;
-	else if( (sd = script_rid2sd(st)) != NULL && sd->status.party_id && (p = party_search(sd->status.party_id)) != NULL && p->instance_id )
-		instance_id = p->instance_id;
 	else return true;
 	
-	if( instance_id <= 0 || instance_id >= MAX_INSTANCE )
-	{
+	if( !instance->valid(instance_id) ) {
 		ShowError("buildin_instance_destroy: Trying to destroy invalid instance %d.\n", instance_id);
 		return true;
 	}
 	
-	instance_destroy(instance_id);
+	instance->destroy(instance_id);
 	return true;
 }
 
-BUILDIN(instance_attachmap)
-{
-	const char *name;
+BUILDIN(instance_attachmap) {
+	const char *name, *map_name = NULL;
 	int16 m;
-	int instance_id;
+	int instance_id = -1;
 	bool usebasename = false;
 	
 	name = script_getstr(st,2);
 	instance_id = script_getnum(st,3);
-	if( script_hasdata(st,4) && script_getnum(st,4) > 0)
+	if( script_hasdata(st,4) && script_getnum(st,4) > 0 )
 		usebasename = true;
 	
-	if( (m = instance_add_map(name, instance_id, usebasename)) < 0 ) // [Saithis]
-	{
+	if( script_hasdata(st, 5) )
+		map_name = script_getstr(st, 5);
+	
+	if( (m = instance->add_map(name, instance_id, usebasename, map_name)) < 0 ) { // [Saithis]
 		ShowError("buildin_instance_attachmap: instance creation failed (%s): %d\n", name, m);
 		script_pushconststr(st, "");
 		return true;
@@ -15945,109 +15957,81 @@ BUILDIN(instance_attachmap)
 	return true;
 }
 
-BUILDIN(instance_detachmap)
-{
-	struct map_session_data *sd;
-	struct party_data *p;
+BUILDIN(instance_detachmap) {
 	const char *str;
 	int16 m;
-	int instance_id;
+	int instance_id = -1;
 	
 	str = script_getstr(st, 2);
 	if( script_hasdata(st, 3) )
 		instance_id = script_getnum(st, 3);
-	else if( st->instance_id )
+	else if( st->instance_id >= 0 )
 		instance_id = st->instance_id;
-	else if( (sd = script_rid2sd(st)) != NULL && sd->status.party_id && (p = party_search(sd->status.party_id)) != NULL && p->instance_id )
-		instance_id = p->instance_id;
 	else return true;
 	
-	if( (m = map_mapname2mapid(str)) < 0 || (m = instance_map2imap(m,instance_id)) < 0 )
-	{
+	if( (m = map_mapname2mapid(str)) < 0 || (m = instance->map2imap(m,instance_id)) < 0 ) {
 		ShowError("buildin_instance_detachmap: Trying to detach invalid map %s\n", str);
 		return true;
 	}
 	
-	instance_del_map(m);
+	instance->del_map(m);
 	return true;
 }
 
-BUILDIN(instance_attach)
-{
-	int instance_id;
+BUILDIN(instance_attach) {
+	int instance_id = -1;
 	
 	instance_id = script_getnum(st, 2);
-	if( instance_id <= 0 || instance_id >= MAX_INSTANCE )
+	if( !instance->valid(instance_id) )
 		return true;
 	
 	st->instance_id = instance_id;
 	return true;
 }
 
-BUILDIN(instance_id)
-{
-	int instance_id;
-	
-	if( script_hasdata(st, 2) )
-	{
-		struct party_data *p;
-		struct map_session_data *sd;
-		int type;
-		type = script_getnum(st, 2);
-		if( type == 0 )
-			instance_id = st->instance_id;
-		else if( type == 1 && (sd = script_rid2sd(st)) != NULL && sd->status.party_id && (p = party_search(sd->status.party_id)) != NULL )
-			instance_id = p->instance_id;
-		else
-			instance_id = 0;
-	}
-	else
-		instance_id = st->instance_id;
-	
-	script_pushint(st, instance_id);
+BUILDIN(instance_id) {
+	script_pushint(st, st->instance_id);
 	return true;
 }
 
 BUILDIN(instance_set_timeout)
 {
 	int progress_timeout, idle_timeout;
-	int instance_id;
-	struct map_session_data *sd;
-	struct party_data *p;
+	int instance_id = -1;
 	
 	progress_timeout = script_getnum(st, 2);
 	idle_timeout = script_getnum(st, 3);
 	
 	if( script_hasdata(st, 4) )
 		instance_id = script_getnum(st, 4);
-	else if( st->instance_id )
+	else if( st->instance_id >= 0 )
 		instance_id = st->instance_id;
-	else if( (sd = script_rid2sd(st)) != NULL && sd->status.party_id && (p = party_search(sd->status.party_id)) != NULL && p->instance_id )
-		instance_id = p->instance_id;
 	else return true;
 	
-	if( instance_id > 0 )
-		instance_set_timeout(instance_id, progress_timeout, idle_timeout);
+	if( instance_id >= 0 )
+		instance->set_timeout(instance_id, progress_timeout, idle_timeout);
 	
 	return true;
 }
 
-BUILDIN(instance_init)
-{
+BUILDIN(instance_init) {
 	int instance_id = script_getnum(st, 2);
 	
-	if( instance[instance_id].state != INSTANCE_IDLE )
-	{
+	if( !instance->valid(instance_id) ) {
+		ShowError("instance_init: invalid instance id %d.\n",instance_id);
+		return true;
+	}
+	
+	if( instances[instance_id].state != INSTANCE_IDLE ) {
 		ShowError("instance_init: instance already initialized.\n");
 		return true;
 	}
 	
-	instance_init(instance_id);
+	instance->start(instance_id);
 	return true;
 }
 
-BUILDIN(instance_announce)
-{
+BUILDIN(instance_announce) {
 	int         instance_id = script_getnum(st,2);
 	const char *mes         = script_getstr(st,3);
 	int         flag        = script_getnum(st,4);
@@ -16058,53 +16042,40 @@ BUILDIN(instance_announce)
 	int         fontY       = script_hasdata(st,9) ? script_getnum(st,9) : 0;     // default fontY
 	
 	int i;
-	struct map_session_data *sd;
-	struct party_data *p;
 	
-	if( instance_id == 0 )
-	{
-		if( st->instance_id )
+	if( instance_id == -1 ) {
+		if( st->instance_id >= 0 )
 			instance_id = st->instance_id;
-		else if( (sd = script_rid2sd(st)) != NULL && sd->status.party_id && (p = party_search(sd->status.party_id)) != NULL && p->instance_id )
-			instance_id = p->instance_id;
-		else return true;
+		else
+			return true;
 	}
 	
-	if( instance_id <= 0 || instance_id >= MAX_INSTANCE )
+	if( !instance->valid(instance_id) )
 		return true;
 	
-	for( i = 0; i < instance[instance_id].num_map; i++ )
-		map_foreachinmap(buildin_announce_sub, instance[instance_id].map[i], BL_PC,
+	for( i = 0; i < instances[instance_id].num_map; i++ )
+		map_foreachinmap(buildin_announce_sub, instances[instance_id].map[i], BL_PC,
 						 mes, strlen(mes)+1, flag&0xf0, fontColor, fontType, fontSize, fontAlign, fontY);
 	
 	return true;
 }
 
-BUILDIN(instance_npcname)
-{
+BUILDIN(instance_npcname) {
 	const char *str;
-	int instance_id = 0;
-	
-	struct map_session_data *sd;
-	struct party_data *p;
+	int instance_id = -1;
 	struct npc_data *nd;
 	
 	str = script_getstr(st, 2);
 	if( script_hasdata(st, 3) )
 		instance_id = script_getnum(st, 3);
-	else if( st->instance_id )
+	else if( st->instance_id >= 0 )
 		instance_id = st->instance_id;
-	else if( (sd = script_rid2sd(st)) != NULL && sd->status.party_id && (p = party_search(sd->status.party_id)) != NULL && p->instance_id )
-		instance_id = p->instance_id;
 	
-	if( instance_id && (nd = npc_name2id(str)) != NULL )
- 	{
+	if( instance_id >= 0 && (nd = npc_name2id(str)) != NULL ) {
 		static char npcname[NAME_LENGTH];
 		snprintf(npcname, sizeof(npcname), "dup_%d_%d", instance_id, nd->bl.id);
  		script_pushconststr(st,npcname);
-	}
-	else
-	{
+	} else {
 		ShowError("script:instance_npcname: invalid instance NPC (instance_id: %d, NPC name: \"%s\".)\n", instance_id, str);
 		st->state = END;
 		return false;
@@ -16113,24 +16084,56 @@ BUILDIN(instance_npcname)
 	return true;
 }
 
-BUILDIN(has_instance)
-{
+BUILDIN(has_instance) {
 	struct map_session_data *sd;
-	struct party_data *p;
  	const char *str;
 	int16 m;
-	int instance_id = 0;
+	int instance_id = -1;
 	
  	str = script_getstr(st, 2);
+	
+	if( (m = map_mapname2mapid(str)) < 0 ) {
+		script_pushconststr(st, "");
+		return true;
+	}
+	
 	if( script_hasdata(st, 3) )
 		instance_id = script_getnum(st, 3);
-	else if( st->instance_id )
+	else if( st->instance_id >= 0 )
 		instance_id = st->instance_id;
-	else if( (sd = script_rid2sd(st)) != NULL && sd->status.party_id && (p = party_search(sd->status.party_id)) != NULL && p->instance_id )
-		instance_id = p->instance_id;
+	else if( (sd = script_rid2sd(st)) != NULL ) {
+		struct party_data *p;
+		int i = 0, j = 0;
+		if( sd->instances ) {
+			for( i = 0; i < sd->instances; i++ ) {
+				ARR_FIND(0, instances[sd->instance[i]].num_map, j, map[instances[sd->instance[i]].map[j]].instance_src_map == m);
+				if( j != instances[sd->instance[i]].num_map )
+					break;
+			}
+			if( i != sd->instances )
+				instance_id = sd->instance[i];
+		}
+		if( instance_id == -1 && sd->status.party_id && (p = party_search(sd->status.party_id)) && p->instances ) {
+			for( i = 0; i < p->instances; i++ ) {
+				ARR_FIND(0, instances[p->instance[i]].num_map, j, map[instances[p->instance[i]].map[j]].instance_src_map == m);
+				if( j != instances[p->instance[i]].num_map )
+					break;
+			}
+			if( i != p->instances )
+				instance_id = p->instance[i];
+		}
+		if( instance_id == -1 && sd->guild && sd->guild->instances ) {
+			for( i = 0; i < sd->guild->instances; i++ ) {
+				ARR_FIND(0, instances[sd->guild->instance[i]].num_map, j, map[instances[sd->guild->instance[i]].map[j]].instance_src_map == m);
+				if( j != instances[sd->guild->instance[i]].num_map )
+					break;
+			}
+			if( i != sd->guild->instances )
+				instance_id = sd->guild->instance[i];
+		}
+	}
 	
-	if( !instance_id || (m = map_mapname2mapid(str)) < 0 || (m = instance_map2imap(m, instance_id)) < 0 )
-	{
+	if( !instance->valid(instance_id) || (m = instance->map2imap(m, instance_id)) < 0 ) {
 		script_pushconststr(st, "");
 		return true;
 	}
@@ -16138,38 +16141,41 @@ BUILDIN(has_instance)
 	script_pushconststr(st, map[m].name);
 	return true;
 }
-
-BUILDIN(instance_warpall)
-{
-	struct map_session_data *pl_sd;
-	int16 m, i;
-	int instance_id;
+static int buildin_instance_warpall_sub(struct block_list *bl,va_list ap) {
+	struct map_session_data *sd = ((TBL_PC*)bl);
+	int mapindex = va_arg(ap,int);
+	int x = va_arg(ap,int);
+	int y = va_arg(ap,int);
+	
+	pc_setpos(sd,mapindex,x,y,CLR_TELEPORT);
+	
+	return 0;
+}
+BUILDIN(instance_warpall) {
+	int16 m;
+	int instance_id = -1;
 	const char *mapn;
 	int x, y;
-	unsigned short mapindex;
-	struct party_data *p = NULL;
+	int mapindex;
 	
 	mapn = script_getstr(st,2);
 	x    = script_getnum(st,3);
 	y    = script_getnum(st,4);
+	
 	if( script_hasdata(st,5) )
 		instance_id = script_getnum(st,5);
-	else if( st->instance_id )
+	else if( st->instance_id >= 0 )
 		instance_id = st->instance_id;
-	else if( (pl_sd = script_rid2sd(st)) != NULL && pl_sd->status.party_id && (p = party_search(pl_sd->status.party_id)) != NULL && p->instance_id )
-		instance_id = p->instance_id;
-	else return true;
-	
-	if( (m = map_mapname2mapid(mapn)) < 0 || (map[m].flag.src4instance && (m = instance_mapid2imapid(m, instance_id)) < 0) )
+	else
 		return true;
 	
-	if( !(p = party_search(instance[instance_id].party_id)) )
+	if( (m = map_mapname2mapid(mapn)) < 0 || (map[m].flag.src4instance && (m = instance->mapid2imapid(m, instance_id)) < 0) )
 		return true;
-	
+		
 	mapindex = map_id2index(m);
-	for( i = 0; i < MAX_PARTY; i++ )
-		if( (pl_sd = p->data[i].sd) && map[pl_sd->bl.m].instance_id == st->instance_id ) pc_setpos(pl_sd,mapindex,x,y,CLR_TELEPORT);
 	
+	map_foreachininstance(buildin_instance_warpall_sub, instance_id, BL_PC,mapindex,x,y);
+
 	return true;
 }
 
@@ -16183,8 +16189,7 @@ BUILDIN(instance_warpall)
  * Example: instance_check_party (getcharid(1){,amount}{,min}{,max});
  * Example 2: instance_check_party (getcharid(1),1,1,99);
  *------------------------------------------*/
-BUILDIN(instance_check_party)
-{
+BUILDIN(instance_check_party) {
 	struct map_session_data *pl_sd;
 	int amount, min, max, i, party_id, c = 0;
 	struct party_data *p = NULL;
@@ -16298,13 +16303,12 @@ BUILDIN(areamobuseskill)
 	int16 m;
 	int range,mobid,skill_id,skill_lv,casttime,emotion,target,cancel;
 	
-	if( (m = map_mapname2mapid(script_getstr(st,2))) < 0 )
-	{
+	if( (m = map_mapname2mapid(script_getstr(st,2))) < 0 ) {
 		ShowError("areamobuseskill: invalid map name.\n");
 		return true;
 	}
 	
-	if( map[m].flag.src4instance && st->instance_id && (m = instance_mapid2imapid(m, st->instance_id)) < 0 )
+	if( map[m].flag.src4instance && st->instance_id >= 0 && (m = instance->mapid2imapid(m, st->instance_id)) < 0 )
 		return true;
 	
 	center.m = m;
@@ -16994,6 +16998,309 @@ BUILDIN(npcskill)
 	
 	return true;
 }
+struct hQueue *script_hqueue_get(int idx) {
+	if( idx < 0 || idx >= script->hqs || script->hq[idx].items == -1 )
+		return NULL;
+	return &script->hq[idx];
+}
+/* set .@id,queue(); */
+/* creates queue, returns created queue id */
+BUILDIN(queue) {
+	int idx = script->hqs;
+	int i;
+	
+	for(i = 0; i < script->hqs; i++) {
+		if( script->hq[i].items == -1 ) {
+			break;
+		}
+	}
+	
+	if( i == script->hqs ) {
+		RECREATE(script->hq, struct hQueue, ++script->hqs);
+		script->hq[ idx ].item = NULL;
+	} else
+		idx = i;
+	
+	script->hq[ idx ].id = idx;
+	script->hq[ idx ].items = 0;
+	script->hq[ idx ].onDeath[0] = '\0';
+	script->hq[ idx ].onLogOut[0] = '\0';
+	script->hq[ idx ].onMapChange[0] = '\0';
+
+	script_pushint(st,idx);
+	return true;
+}
+/* set .@length,queuesize(.@queue_id); */
+/* returns queue length */
+BUILDIN(queuesize) {
+	int idx = script_getnum(st, 2);
+	
+	if( idx < 0 || idx >= script->hqs || script->hq[idx].items == -1 ) {
+		ShowWarning("buildin_queuesize: unknown queue id %d\n",idx);
+		script_pushint(st, 0);
+	} else
+		script_pushint(st, script->hq[ idx ].items );
+		
+	return true;
+}
+bool script_hqueue_add(int idx, int var) {
+	if( idx < 0 || idx >= script->hqs || script->hq[idx].items == -1 ) {
+		ShowWarning("script_hqueue_add: unknown queue id %d\n",idx);
+		return true;
+	} else {
+		struct map_session_data *sd;
+		int i;
+		
+		for(i = 0; i < script->hq[idx].items; i++) {
+			if( script->hq[idx].item[i] == var ) {
+				return true;
+			}
+		}
+		
+		if( i == script->hq[idx].items ) {
+			
+			for(i = 0; i < script->hq[idx].items; i++) {
+				if( script->hq[idx].item[i] == 0 ) {
+					break;
+				}
+			}
+			
+			if( i == script->hq[idx].items )
+				RECREATE(script->hq[idx].item, int, ++script->hq[idx].items);
+			
+			script->hq[idx].item[i] = var;
+			
+			if( var >= START_ACCOUNT_NUM && (sd = map_id2sd(var)) ) {
+				for(i = 0; i < sd->queues_count; i++) {
+					if( sd->queues[i] == -1 ) {
+						break;
+					}
+				}
+				
+				if( i == sd->queues_count )
+					RECREATE(sd->queues, int, ++sd->queues_count);
+				
+				sd->queues[i] = idx;
+			}
+			
+		}
+	}
+	return false;
+}
+/* queueadd(.@queue_id,.@var_id); */
+/* adds a new entry to the queue, returns 1 if already in queue, 0 otherwise */
+BUILDIN(queueadd) {
+	int idx = script_getnum(st, 2);
+	int var = script_getnum(st, 3);
+	
+	script_pushint(st,script->queue_add(idx,var)?1:0);
+	
+	return true;
+}
+bool script_hqueue_remove(int idx, int var) {
+	if( idx < 0 || idx >= script->hqs || script->hq[idx].items == -1 ) {
+		ShowWarning("script_hqueue_remove: unknown queue id %d (used with var %d)\n",idx,var);
+		return true;
+	} else {
+		int i;
+		
+		for(i = 0; i < script->hq[idx].items; i++) {
+			if( script->hq[idx].item[i] == var ) {
+				return true;
+			}
+		}
+		
+		if( i != script->hq[idx].items ) {
+			struct map_session_data *sd;
+			script->hq[idx].item[i] = 0;
+			
+			if( var >= START_ACCOUNT_NUM && (sd = map_id2sd(var)) ) {
+				for(i = 0; i < sd->queues_count; i++) {
+					if( sd->queues[i] == var ) {
+						break;
+					}
+				}
+				
+				if( i != sd->queues_count )
+					sd->queues[i] = -1;
+			}
+			
+		}
+	}
+	return false;
+}
+/* queueremove(.@queue_id,.@var_id); */
+/* removes a entry from the queue, returns 1 if not in queue, 0 otherwise */
+BUILDIN(queueremove) {
+	int idx = script_getnum(st, 2);
+	int var = script_getnum(st, 3);
+
+	script_pushint(st, script->queue_remove(idx,var)?1:0);
+	
+	return true;
+}
+
+/* queueopt(.@queue_id,optionType,<optional val>); */
+/* modifies the queue's options, when val is not provided the option is removed */
+/* when OnMapChange event is triggered, it sets a temp char var @QMapChangeTo$ with the destination map name */
+/* returns 1 when fails, 0 on success */
+BUILDIN(queueopt) {
+	int idx = script_getnum(st, 2);
+	int var = script_getnum(st, 3);
+	
+	if( idx < 0 || idx >= script->hqs || script->hq[idx].items == -1 ) {
+		ShowWarning("buildin_queueopt: unknown queue id %d\n",idx);
+		script_pushint(st, 1);
+	} else if( var <= HQO_NONE || var >= HQO_MAX ) {
+		ShowWarning("buildin_queueopt: unknown optionType %d\n",var);
+		script_pushint(st, 1);
+	} else {
+		switch( (enum hQueueOpt)var ) {
+			case HQO_OnDeath:
+				if( script_hasdata(st, 4) )
+					safestrncpy(script->hq[idx].onDeath, script_getstr(st, 4), EVENT_NAME_LENGTH);
+				else
+					script->hq[idx].onDeath[0] = '\0';
+				break;
+			case HQO_onLogOut:
+				if( script_hasdata(st, 4) )
+					safestrncpy(script->hq[idx].onLogOut, script_getstr(st, 4), EVENT_NAME_LENGTH);
+				else
+					script->hq[idx].onLogOut[0] = '\0';
+				break;
+			case HQO_OnMapChange:
+				if( script_hasdata(st, 4) )
+					safestrncpy(script->hq[idx].onMapChange, script_getstr(st, 4), EVENT_NAME_LENGTH);
+				else
+					script->hq[idx].onMapChange[0] = '\0';
+				break;
+			default:
+				ShowWarning("buildin_queueopt: unsupported optionType %d\n",var);
+				script_pushint(st, 1);
+				break;
+		}
+	}
+	
+	return true;
+}
+bool script_hqueue_del(int idx) {
+	if( idx < 0 || idx >= script->hqs || script->hq[idx].items == -1 ) {
+		ShowWarning("script_queue_del: unknown queue id %d\n",idx);
+		return true;
+	} else {
+		struct map_session_data *sd;
+		int i;
+		
+		for(i = 0; i < script->hq[idx].items; i++) {
+			if( script->hq[idx].item[i] >= START_ACCOUNT_NUM && (sd = map_id2sd(script->hq[idx].item[i])) ) {
+				int j;
+				for(j = 0; j < sd->queues_count; j++) {
+					if( sd->queues[j] == script->hq[idx].item[i] ) {
+						break;
+					}
+				}
+				
+				if( j != sd->queues_count )
+					sd->queues[j] = -1;
+			}
+		}
+		
+		script->hq[idx].items = -1;
+	}
+	return false;
+}
+/* queuedel(.@queue_id); */
+/* deletes queue of id .@queue_id, returns 1 if id not found, 0 otherwise */
+BUILDIN(queuedel) {
+	int idx = script_getnum(st, 2);
+	
+	script_pushint(st,script->queue_del(idx)?1:0);
+	
+	return true;
+}
+
+/* set .@id, queueiterator(.@queue_id); */
+/* creates a new queue iterator, returns its id */
+BUILDIN(queueiterator) {
+	int qid = script_getnum(st, 2);
+	struct hQueue *queue = NULL;
+	int idx = script->hqis;
+	int i;
+	
+	if( qid < 0 || qid >= script->hqs || script->hq[idx].items == -1 || !(queue = script->queue(qid)) ) {
+		ShowWarning("queueiterator: invalid queue id %d\n",qid);
+		return true;
+	}
+	
+	for(i = 0; i < script->hqis; i++) {
+		if( script->hqi[i].items == -1 ) {
+			break;
+		}
+	}
+	
+	if( i == script->hqis )
+		RECREATE(script->hqi, struct hQueueIterator, ++script->hqis);
+	else
+		idx = i;
+	
+	RECREATE(script->hqi[ idx ].item, int, queue->items);
+	
+	memcpy(&script->hqi[idx].item, &queue->item, sizeof(int)*queue->items);
+	
+	script->hqi[ idx ].items = queue->items;
+	script->hqi[ idx ].pos = 0;
+	
+	script_pushint(st,idx);
+	return true;
+}
+/* Queue Iterator Get Next */
+/* returns next/first member in the iterator, 0 if none */
+BUILDIN(qiget) {
+	int idx = script_getnum(st, 2);
+	
+	if( idx < 0 || idx >= script->hqis ) {
+		ShowWarning("buildin_qiget: unknown queue iterator id %d\n",idx);
+		script_pushint(st, 0);
+	} else if ( script->hqi[idx].pos == script->hqi[idx].items ) {
+		script_pushint(st, 0);
+	} else {
+		struct hQueueIterator *it = &script->hqi[idx];
+		script_pushint(st, it->item[it->pos++]);
+	}
+
+	return true;
+}
+/* Queue Iterator Check */
+/* returns 1:0 if there is a next member in the iterator */
+BUILDIN(qicheck) {
+	int idx = script_getnum(st, 2);
+	
+	if( idx < 0 || idx >= script->hqis ) {
+		ShowWarning("buildin_qicheck: unknown queue iterator id %d\n",idx);
+		script_pushint(st, 0);
+	} else if ( script->hqi[idx].pos == script->hqi[idx].items ) {
+		script_pushint(st, 0);
+	} else {
+		script_pushint(st, 1);
+	}
+	
+	return true;
+}
+/* Queue Iterator Check */
+BUILDIN(qiclear) {
+	int idx = script_getnum(st, 2);
+	
+	if( idx < 0 || idx >= script->hqis ) {
+		ShowWarning("buildin_qiclear: unknown queue iterator id %d\n",idx);
+		script_pushint(st, 1);
+	} else {
+		script->hqi[idx].items = -1;
+		script_pushint(st, 0);
+	}
+	
+	return true;
+}
+
 // declarations that were supposed to be exported from npc_chat.c
 #ifdef PCRE_SUPPORT
 	BUILDIN(defpattern);
@@ -17442,12 +17749,12 @@ void script_parse_builtin(void) {
 		BUILDIN_DEF(bg_updatescore,"sii"),
 		
 		// Instancing
-		BUILDIN_DEF(instance_create,"si"),
+		BUILDIN_DEF(instance_create,"si?"),
 		BUILDIN_DEF(instance_destroy,"?"),
-		BUILDIN_DEF(instance_attachmap,"si?"),
+		BUILDIN_DEF(instance_attachmap,"si??"),
 		BUILDIN_DEF(instance_detachmap,"s?"),
 		BUILDIN_DEF(instance_attach,"i"),
-		BUILDIN_DEF(instance_id,"?"),
+		BUILDIN_DEF(instance_id,""),
 		BUILDIN_DEF(instance_set_timeout,"ii?"),
 		BUILDIN_DEF(instance_init,"i"),
 		BUILDIN_DEF(instance_announce,"isi?????"),
@@ -17492,6 +17799,20 @@ void script_parse_builtin(void) {
 		BUILDIN_DEF(checkquest, "i?"),
 		BUILDIN_DEF(changequest, "ii"),
 		BUILDIN_DEF(showevent, "ii"),
+		
+		/**
+		 * hQueue [Ind/Hercules]
+		 **/
+		BUILDIN_DEF(queue,""),
+		BUILDIN_DEF(queuesize,"i"),
+		BUILDIN_DEF(queueadd,"ii"),
+		BUILDIN_DEF(queueremove,"ii"),
+		BUILDIN_DEF(queueopt,"ii?"),
+		BUILDIN_DEF(queuedel,"i"),
+		BUILDIN_DEF(queueiterator,"i"),
+		BUILDIN_DEF(qicheck,"i"),
+		BUILDIN_DEF(qiget,"i"),
+		BUILDIN_DEF(qiclear,"i"),
 	};
 	int i,n, len = ARRAYLENGTH(BUILDIN), start = script->buildin_count;
 	char* p;
@@ -17545,6 +17866,11 @@ void script_parse_builtin(void) {
 void script_defaults(void) {
 	script = &script_s;
 	
+	script->hq = NULL;
+	script->hqi = NULL;
+	script->hqs = script->hqis = 0;
+	memset(&script->hqe, 0, sizeof(script->hqe));
+	
 	script->buildin_count = 0;
 	script->buildin = NULL;
 	
@@ -17555,4 +17881,9 @@ void script_defaults(void) {
 	script->addScript = script_hp_add;
 	script->conv_num = conv_num;
 	script->conv_str = conv_str;
+	
+	script->queue = script_hqueue_get;
+	script->queue_add = script_hqueue_add;
+	script->queue_del = script_hqueue_del;
+	script->queue_remove = script_hqueue_remove;
 }
diff --git a/src/map/script.h b/src/map/script.h
index a0d282bfe..70ced5d43 100644
--- a/src/map/script.h
+++ b/src/map/script.h
@@ -4,6 +4,8 @@
 #ifndef _SCRIPT_H_
 #define _SCRIPT_H_
 
+#include "map.h" //EVENT_NAME_LENGTH
+
 #define NUM_WHISPER_VAR 10
 
 struct map_session_data;
@@ -110,6 +112,30 @@ struct script_stack {
 	struct DBMap* var_function;// scope variables
 };
 
+enum hQueueOpt {
+	HQO_NONE,
+	HQO_onLogOut,
+	HQO_OnDeath,
+	HQO_OnMapChange,
+	HQO_MAX,
+};
+
+/* [Ind/Hercules] */
+struct hQueue {
+	int id;
+	int *item;
+	int items;
+	/* events */
+	char onLogOut[EVENT_NAME_LENGTH];
+	char onDeath[EVENT_NAME_LENGTH];
+	char onMapChange[EVENT_NAME_LENGTH];
+};
+
+struct hQueueIterator {
+	int *item;
+	int items;
+	int pos;
+};
 
 //
 // Script state
@@ -129,6 +155,7 @@ struct script_state {
 	int instance_id;
 	//For backing up purposes
 	struct script_state *bk_st;
+	unsigned char hIterator;
 	int bk_npcid;
 	unsigned freeloop : 1;// used by buildin_freeloop
 	unsigned op2ref : 1;// used by op_2
@@ -291,8 +318,14 @@ struct script_function {
 	char *name;
 	char *arg;
 };
+
 /* script.c interface (incomplete) */
 struct script_interface {
+	/* */
+	struct hQueue *hq;
+	struct hQueueIterator *hqi;
+	int hqs, hqis;
+	int hqe[HQO_MAX];
 	/*  */
 	char **buildin;
 	unsigned int buildin_count;
@@ -304,6 +337,11 @@ struct script_interface {
 	bool (*addScript) (char *name, char *args, bool (*func)(struct script_state *st));
 	int (*conv_num) (struct script_state *st,struct script_data *data);
 	const char* (*conv_str) (struct script_state *st,struct script_data *data);
+	/* */
+	struct hQueue *(*queue) (int idx);
+	bool (*queue_add) (int idx, int var);
+	bool (*queue_del) (int idx);
+	bool (*queue_remove) (int idx, int var);
 } script_s;
 
 struct script_interface *script;
diff --git a/src/map/skill.c b/src/map/skill.c
index 06bfca5f8..911410727 100644
--- a/src/map/skill.c
+++ b/src/map/skill.c
@@ -14464,7 +14464,7 @@ void skill_unitsetmapcell (struct skill_unit *src, uint16 skill_id, uint16 skill
 
 	for( y = src->bl.y - range; y <= src->bl.y + range; ++y )
 		for( x = src->bl.x - range; x <= src->bl.x + range; ++x )
-			map_setcell(src->bl.m, x, y, cell, flag);
+			map[src->bl.m].setcell(src->bl.m, x, y, cell, flag);
 }
 
 /*==========================================
diff --git a/src/map/status.c b/src/map/status.c
index b7e906910..30adf0d0f 100644
--- a/src/map/status.c
+++ b/src/map/status.c
@@ -6079,14 +6079,15 @@ void status_set_viewdata(struct block_list *bl, int class_)
 
 /// Returns the status_change data of bl or NULL if it doesn't exist.
 struct status_change *status_get_sc(struct block_list *bl) {
-	if( bl )
-	switch (bl->type) {
-		case BL_PC:  return &((TBL_PC*)bl)->sc;
-		case BL_MOB: return &((TBL_MOB*)bl)->sc;
-		case BL_NPC: return &((TBL_NPC*)bl)->sc;
-		case BL_HOM: return &((TBL_HOM*)bl)->sc;
-		case BL_MER: return &((TBL_MER*)bl)->sc;
-		case BL_ELEM: return &((TBL_ELEM*)bl)->sc;
+	if( bl ) {
+		switch (bl->type) {
+			case BL_PC:  return &((TBL_PC*)bl)->sc;
+			case BL_MOB: return &((TBL_MOB*)bl)->sc;
+			case BL_NPC: return NULL;
+			case BL_HOM: return &((TBL_HOM*)bl)->sc;
+			case BL_MER: return &((TBL_MER*)bl)->sc;
+			case BL_ELEM: return &((TBL_ELEM*)bl)->sc;
+		}
 	}
 	return NULL;
 }
diff --git a/src/map/unit.c b/src/map/unit.c
index cbc695c4a..3ab1008cb 100644
--- a/src/map/unit.c
+++ b/src/map/unit.c
@@ -50,7 +50,7 @@ struct unit_data* unit_bl2ud(struct block_list *bl)
 	if( bl->type == BL_PC)  return &((struct map_session_data*)bl)->ud;
 	if( bl->type == BL_MOB) return &((struct mob_data*)bl)->ud;
 	if( bl->type == BL_PET) return &((struct pet_data*)bl)->ud;
-	if( bl->type == BL_NPC) return &((struct npc_data*)bl)->ud;
+	if( bl->type == BL_NPC) return ((struct npc_data*)bl)->ud;
 	if( bl->type == BL_HOM) return &((struct homun_data*)bl)->ud;
 	if( bl->type == BL_MER) return &((struct mercenary_data*)bl)->ud;
 	if( bl->type == BL_ELEM) return &((struct elemental_data*)bl)->ud;
@@ -678,10 +678,12 @@ int unit_setdir(struct block_list *bl,unsigned char dir)
 	return 0;
 }
 
-uint8 unit_getdir(struct block_list *bl)
-{
+uint8 unit_getdir(struct block_list *bl) {
 	struct unit_data *ud;
-	nullpo_ret(bl );
+	nullpo_ret(bl);
+	
+	if( bl->type == BL_NPC )
+		return ((TBL_NPC*)bl)->dir;
 	ud = unit_bl2ud(bl);
 	if (!ud) return 0;
 	return ud->dir;
@@ -1961,8 +1963,7 @@ int unit_skillcastcancel(struct block_list *bl,int type)
 }
 
 // unit_data initialization process
-void unit_dataset(struct block_list *bl)
-{
+void unit_dataset(struct block_list *bl) {
 	struct unit_data *ud;
 	nullpo_retv(ud = unit_bl2ud(bl));
 
@@ -2121,8 +2122,7 @@ int unit_remove_map_(struct block_list *bl, clr_type clrtype, const char* file,
 				npc_touchnext_areanpc(sd,true);
 
 			// Check if warping and not changing the map.
-			if ( sd->state.warping && !sd->state.changemap )
-			{
+			if ( sd->state.warping && !sd->state.changemap ) {
 				status_change_end(bl, SC_CLOAKING, INVALID_TIMER);
 				status_change_end(bl, SC_CLOAKINGEXCEED, INVALID_TIMER);
 			}
@@ -2163,18 +2163,15 @@ int unit_remove_map_(struct block_list *bl, clr_type clrtype, const char* file,
 					sd->state.active, sd->state.connect_new, sd->state.rewarp, sd->state.changemap, sd->state.debug_remove_map,
 					map[bl->m].name, map[bl->m].users,
 					sd->debug_file, sd->debug_line, sd->debug_func, file, line, func);
-			}
-			else
-			if (--map[bl->m].users == 0 && battle_config.dynamic_mobs)	//[Skotlex]
+			} else if (--map[bl->m].users == 0 && battle_config.dynamic_mobs)	//[Skotlex]
 				map_removemobs(bl->m);
 			if( !(sd->sc.option&OPTION_INVISIBLE) )
 			{// decrement the number of active pvp players on the map
 				--map[bl->m].users_pvp;
 			}
-			if( map[bl->m].instance_id )
-			{
-				instance[map[bl->m].instance_id].users--;
-				instance_check_idle(map[bl->m].instance_id);
+			if( map[bl->m].instance_id >= 0 ) {
+				instances[map[bl->m].instance_id].users--;
+				instance->check_idle(map[bl->m].instance_id);
 			}
 			sd->state.debug_remove_map = 1; // temporary state to track double remove_map's [FlavioJS]
 			sd->debug_file = file;
@@ -2356,9 +2353,19 @@ int unit_free(struct block_list *bl, clr_type clrtype)
 					ers_free(pc_sc_display_ers, sd->sc_display[i]);
 				}
 				sd->sc_display_count = 0;
+			}
+			if( sd->sc_display != NULL ) {
 				aFree(sd->sc_display);
 				sd->sc_display = NULL;
 			}
+			if( sd->instance != NULL ) {
+				aFree(sd->instance);
+				sd->instance = NULL;
+			}
+			if( sd->queues != NULL ) {
+				aFree(sd->queues);
+				sd->queues = NULL;
+			}
 			break;
 		}
 		case BL_PET: