path: root/src/map/map.c

// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
// For more information, see LICENCE in the main folder

#include "../common/cbasetypes.h"
#include "../common/core.h"
#include "../common/timer.h"
#include "../common/grfio.h"
#include "../common/malloc.h"
#include "../common/socket.h" // WFIFO*()
#include "../common/showmsg.h"
#include "../common/version.h"
#include "../common/nullpo.h"
#include "../common/strlib.h"
#include "../common/utils.h"

#include "map.h"
#include "chrif.h"
#include "clif.h"
#include "intif.h"
#include "npc.h"
#include "pc.h"
#include "status.h"
#include "mob.h"
#include "chat.h"
#include "itemdb.h"
#include "storage.h"
#include "skill.h"
#include "trade.h"
#include "party.h"
#include "unit.h"
#include "battle.h"
#include "script.h"
#include "guild.h"
#include "pet.h"
#include "mercenary.h"
#include "atcommand.h"
#include "charcommand.h"
#include "log.h"
#include "irc.h"
#ifndef TXT_ONLY
#include "mail.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <math.h>
#ifndef _WIN32
#include <unistd.h>
#endif

#ifndef TXT_ONLY
char default_codepage[32] = "";

int map_server_port = 3306;
char map_server_ip[32] = "127.0.0.1";
char map_server_id[32] = "ragnarok";
char map_server_pw[32] = "ragnarok";
char map_server_db[32] = "ragnarok";
Sql* mmysql_handle;

int db_use_sqldbs = 0;
char item_db_db[32] = "item_db";
char item_db2_db[32] = "item_db2";
char mob_db_db[32] = "mob_db";
char mob_db2_db[32] = "mob_db2";

char char_db[32] = "char";

// log database
char log_db_ip[32] = "127.0.0.1";
int log_db_port = 3306;
char log_db_id[32] = "ragnarok";
char log_db_pw[32] = "ragnarok";
char log_db[32] = "log";
Sql* logmysql_handle;

#endif /* not TXT_ONLY */

int lowest_gm_level = 1;

// This param using for sending mainchat
// messages like whispers to this nick. [LuzZza]
char main_chat_nick[16] = "Main";

char *INTER_CONF_NAME;
char *LOG_CONF_NAME;
char *MAP_CONF_NAME;
char *BATTLE_CONF_FILENAME;
char *ATCOMMAND_CONF_FILENAME;
char *CHARCOMMAND_CONF_FILENAME;
char *SCRIPT_CONF_NAME;
char *MSG_CONF_NAME;

// �ɗ� static�Ń�?�J����?�߂�
static struct dbt * id_db=NULL;// id -> struct block_list
static struct dbt * pc_db=NULL;// id -> struct map_session_data
static struct dbt * map_db=NULL;
static struct dbt * nick_db=NULL;// charid -> struct charid2nick (requested names of offline characters)
static struct dbt * charid_db=NULL;// charid -> struct map_session_data

static int map_users=0;
static struct block_list *objects[MAX_FLOORITEM];
static int first_free_object_id=0,last_object_id=0;

#define block_free_max 1048576
struct block_list *block_free[block_free_max];
static int block_free_count = 0, block_free_lock = 0;

#define BL_LIST_MAX 1048576
static struct block_list *bl_list[BL_LIST_MAX];
static int bl_list_count = 0;

struct map_data map[MAX_MAP_PER_SERVER];
int map_num = 0;

int map_port=0;

int autosave_interval = DEFAULT_AUTOSAVE_INTERVAL;
int minsave_interval = 100;
int save_settings = 0xFFFF;
int agit_flag = 0;
int night_flag = 0; // 0=day, 1=night [Yor]

struct charid_request {
	struct charid_request* next;
	int charid;// who want to be notified of the nick
};
struct charid2nick {
	char nick[NAME_LENGTH];
	struct charid_request* requests;// requests of notification on this nick
};

// This is the main header found at the very beginning of the map cache
struct map_cache_main_header {
	unsigned long file_size;
	unsigned short map_count;
};

// This is the header appended before every compressed map cells info in the map cache
struct map_cache_map_info {
	char name[MAP_NAME_LENGTH];
	short xs;
	short ys;
	long len;
};

char map_cache_file[256]="db/map_cache.dat";
char db_path[256] = "db";
char motd_txt[256] = "conf/motd.txt";
char help_txt[256] = "conf/help.txt";
char help2_txt[256] = "conf/help2.txt";
char charhelp_txt[256] = "conf/charhelp.txt";

char wisp_server_name[NAME_LENGTH] = "Server"; // can be modified in char-server configuration file

int console = 0;
int enable_spy = 0; //To enable/disable @spy commands, which consume too much cpu time when sending packets. [Skotlex]
int enable_grf = 0;	//To enable/disable reading maps from GRF files, bypassing mapcache [blackhole89]

/*==========================================
 * �Smap�I?�v�ł̐�??�ݒ�
 * (char�I���瑗���Ă���)
 *------------------------------------------*/
void map_setusers(int fd)
{
	map_users = RFIFOL(fd,2);
	// send some answer
	WFIFOHEAD(fd, 2);
	WFIFOW(fd,0) = 0x2718;
	WFIFOSET(fd,2);
}

/*==========================================
 * �Smap�I?�v�ł̐�??�擾 (/w�ւ�?���p)
 *------------------------------------------*/
int map_getusers(void)
{
	return map_users;
}

//Distance functions, taken from http://www.flipcode.com/articles/article_fastdistance.shtml
int check_distance(int dx, int dy, int distance)
{
#ifdef CIRCULAR_AREA
	//In this case, we just do a square comparison. Add 1 tile grace for diagonal range checks.
	return (dx*dx + dy*dy <= distance*distance + (dx&&dy?1:0));
#else
	if (dx < 0) dx = -dx;
	if (dy < 0) dy = -dy;
	return ((dx<dy?dy:dx) <= distance);
#endif
}

unsigned int distance(int dx, int dy)
{
#ifdef CIRCULAR_AREA
	unsigned int min, max;

	if ( dx < 0 ) dx = -dx;
	if ( dy < 0 ) dy = -dy;
	//There appears to be something wrong with the aproximation below when either dx/dy is 0! [Skotlex]
	if ( dx == 0 ) return dy;
	if ( dy == 0 ) return dx;
	
	if ( dx < dy )
	{
		min = dx;
		max = dy;
	} else {
		min = dy;
		max = dx;
	}
   // coefficients equivalent to ( 123/128 * max ) and ( 51/128 * min )
	return ((( max << 8 ) + ( max << 3 ) - ( max << 4 ) - ( max << 1 ) +
		( min << 7 ) - ( min << 5 ) + ( min << 3 ) - ( min << 1 )) >> 8 );
#else
	if (dx < 0) dx = -dx;
	if (dy < 0) dy = -dy;
	return (dx<dy?dy:dx);
#endif
}

//
// block�폜�̈��S���m��?��
//

/*==========================================
 * block��free����Ƃ�free��?���ɌĂ�
 * ���b�N����Ă���Ƃ��̓o�b�t�@�ɂ��߂�
 *------------------------------------------*/
int map_freeblock (struct block_list *bl)
{
	nullpo_retr(block_free_lock, bl);
	if (block_free_lock == 0 || block_free_count >= block_free_max)
	{
		aFree(bl);
		bl = NULL;
		if (block_free_count >= block_free_max)
			if (battle_config.error_log)
				ShowWarning("map_freeblock: too many free block! %d %d\n",
					block_free_count, block_free_lock);
	} else
		block_free[block_free_count++] = bl;

	return block_free_lock;
}
/*==========================================
 * block��free����sI�ɋ֎~����
 *------------------------------------------*/
int map_freeblock_lock (void)
{
	return ++block_free_lock;
}

/*==========================================
 * block��free�̃��b�N����������
 * ���̂Ƃ��A���b�N�����S�ɂȂ��Ȃ��
 * �o�b�t�@�ɂ��܂��Ă���block��S���폜
 *------------------------------------------*/
int map_freeblock_unlock (void)
{
	if ((--block_free_lock) == 0) {
		int i;
		for (i = 0; i < block_free_count; i++)
		{
			aFree(block_free[i]);
			block_free[i] = NULL;
		}
		block_free_count = 0;
	} else if (block_free_lock < 0) {
		if (battle_config.error_log)
			ShowError("map_freeblock_unlock: lock count < 0 !\n");
		block_free_lock = 0;
	}

	return block_free_lock;
}

// map_freeblock_lock() ���Ă�� map_freeblock_unlock() ���Ă΂Ȃ�
// �֐����������̂ŁA����I��block_free_lock�����Z�b�g����悤�ɂ���B
// ���̊֐��́Ado_timer() �̃g�b�v���x������Ă΂��̂ŁA
// block_free_lock �𒼐ڂ������Ă��x�ᖳ���͂��B

int map_freeblock_timer (int tid, unsigned int tick, int id, int data)
{
	if (block_free_lock > 0) {
		ShowError("map_freeblock_timer: block_free_lock(%d) is invalid.\n", block_free_lock);
		block_free_lock = 1;
		map_freeblock_unlock();
	}

	return 0;
}

//
// block��?��
//
/*==========================================
 * map[]��block_list����?�����Ă���ꍇ��
 * bl->prev��bl_head�̃A�h���X�����Ă���
 *------------------------------------------*/
static struct block_list bl_head;

#ifdef CELL_NOSTACK
/*==========================================
 * These pair of functions update the counter of how many objects
 * lie on a tile.
 *------------------------------------------*/
void map_addblcell(struct block_list *bl)
{
	if( bl->m<0 || bl->x<0 || bl->x>=map[bl->m].xs || bl->y<0 || bl->y>=map[bl->m].ys || !(bl->type&BL_CHAR) )
		return;
	map[bl->m].cell_bl[bl->x+bl->y*map[bl->m].xs]++;
	return;
}

void map_delblcell(struct block_list *bl)
{
	if( bl->m <0 || bl->x<0 || bl->x>=map[bl->m].xs || bl->y<0 || bl->y>=map[bl->m].ys || !(bl->type&BL_CHAR) )
		return;
	map[bl->m].cell_bl[bl->x+bl->y*map[bl->m].xs]--;
}
#endif

/*==========================================
 * Adds a block to the map.
 * If flag is 1, then the block was just added,
 * otherwise it is part of a transition.
 * Returns 0 on success, 1 on failure (illegal coordinates).
 *------------------------------------------*/
int map_addblock_sub (struct block_list *bl, int flag)
{
	int m, x, y, pos;

	nullpo_retr(0, bl);

	if (bl->prev != NULL) {
		if(battle_config.error_log)
			ShowError("map_addblock error : bl->prev != NULL\n");
		return 0;
	}

	m = bl->m;
	x = bl->x;
	y = bl->y;
	if (m < 0 || m >= map_num ||
		x < 0 || x >= map[m].xs ||
		y < 0 || y >= map[m].ys)
		return 1;
	
#ifdef CELL_NOSTACK
	map_addblcell(bl);
#endif
	
	pos = x/BLOCK_SIZE+(y/BLOCK_SIZE)*map[m].bxs;
	if (bl->type == BL_MOB) {
		bl->next = map[m].block_mob[pos];
		bl->prev = &bl_head;
		if (bl->next) bl->next->prev = bl;
		map[m].block_mob[pos] = bl;
		map[m].block_mob_count[pos]++;
	} else {
		bl->next = map[m].block[pos];
		bl->prev = &bl_head;
		if (bl->next) bl->next->prev = bl;
		map[m].block[pos] = bl;
		map[m].block_count[pos]++;
		if (bl->type == BL_PC && flag)
		{
			struct map_session_data* sd;
			if (map[m].users++ == 0 && battle_config.dynamic_mobs)	//Skotlex
				map_spawnmobs(m);
			sd = (struct map_session_data*)bl;
			if (battle_config.pet_no_gvg && map_flag_gvg(m) && sd->pd)
			{	//Return the pet to egg. [Skotlex]
				clif_displaymessage(sd->fd, "Pets are not allowed in Guild Wars.");
				pet_menu(sd, 3); //Option 3 is return to egg.
			}
		}
	}

	return 0;
}

/*==========================================
 * Removes a block from the map.
 * If flag is 1, then the block is removed for good
 * otherwise it is part of a transition.
 *------------------------------------------*/
int map_delblock_sub (struct block_list *bl, int flag)
{
	int b;
	nullpo_retr(0, bl);

	// ?��blocklist����?������
	if (bl->prev == NULL) {
		if (bl->next != NULL) {
			// prev��NULL��next��NULL�łȂ��̂͗L���Ă͂Ȃ�Ȃ�
			if(battle_config.error_log)
				ShowError("map_delblock error : bl->next!=NULL\n");
		}
		return 0;
	}

#ifdef CELL_NOSTACK
	map_delblcell(bl);
#endif
	
	b = bl->x/BLOCK_SIZE+(bl->y/BLOCK_SIZE)*map[bl->m].bxs;

	if (bl->type == BL_PC && flag)
		if (--map[bl->m].users == 0 && battle_config.dynamic_mobs)	//[Skotlex]
			map_removemobs(bl->m);

	if (bl->next)
		bl->next->prev = bl->prev;
	if (bl->prev == &bl_head) {
		// ���X�g�̓��Ȃ̂ŁAmap[]��block_list���X�V����
		if (bl->type == BL_MOB) {
			map[bl->m].block_mob[b] = bl->next;
			if ((map[bl->m].block_mob_count[b]--) < 0)
				map[bl->m].block_mob_count[b] = 0;
		} else {
			map[bl->m].block[b] = bl->next;
			if((map[bl->m].block_count[b]--) < 0)
				map[bl->m].block_count[b] = 0;
		}
	} else {
		bl->prev->next = bl->next;
	}
	bl->next = NULL;
	bl->prev = NULL;

	return 0;
}

/*==========================================
 * Moves a block a x/y target position. [Skotlex]
 * Pass flag as 1 to prevent doing skill_unit_move checks
 * (which are executed by default on BL_CHAR types)
 *------------------------------------------*/
int map_moveblock(struct block_list *bl, int x1, int y1, unsigned int tick)
{
	int x0 = bl->x, y0 = bl->y;
	struct status_change *sc = NULL;
	int moveblock = ( x0/BLOCK_SIZE != x1/BLOCK_SIZE || y0/BLOCK_SIZE != y1/BLOCK_SIZE);

	if (!bl->prev) {
		//Block not in map, just update coordinates, but do naught else.
		bl->x = x1;
		bl->y = y1;
		return 0;	
	}
	//TODO: Perhaps some outs of bounds checking should be placed here?
	if (bl->type&BL_CHAR) {
		skill_unit_move(bl,tick,2);
		sc = status_get_sc(bl);
		if (sc && sc->count) {
			if (sc->data[SC_CLOSECONFINE].timer != -1)
				status_change_end(bl, SC_CLOSECONFINE, -1);
			if (sc->data[SC_CLOSECONFINE2].timer != -1)
				status_change_end(bl, SC_CLOSECONFINE2, -1);
//			if (sc->data[SC_BLADESTOP].timer != -1) //Won't stop when you are knocked away, go figure...
//				status_change_end(bl, SC_BLADESTOP, -1);
			if (sc->data[SC_BASILICA].timer != -1)
				status_change_end(bl, SC_BASILICA, -1);
			if (sc->data[SC_TATAMIGAESHI].timer != -1)
				status_change_end(bl, SC_TATAMIGAESHI, -1);
			if (sc->data[SC_MAGICROD].timer != -1)
				status_change_end(bl, SC_MAGICROD, -1);
		}
	}
	if (moveblock) map_delblock_sub(bl,0);
#ifdef CELL_NOSTACK
	else map_delblcell(bl);
#endif
	bl->x = x1;
	bl->y = y1;
	if (moveblock) map_addblock_sub(bl,0);
#ifdef CELL_NOSTACK
	else map_addblcell(bl);
#endif
	if (bl->type&BL_CHAR) {
		skill_unit_move(bl,tick,3);
		if (sc) {
			if (sc->count) {
				if (sc->data[SC_CLOAKING].timer != -1)
					skill_check_cloaking(bl, sc);
				if (sc->data[SC_DANCING].timer != -1)
					skill_unit_move_unit_group((struct skill_unit_group *)sc->data[SC_DANCING].val2, bl->m, x1-x0, y1-y0);
				if (sc->data[SC_WARM].timer != -1)
					skill_unit_move_unit_group((struct skill_unit_group *)sc->data[SC_WARM].val4, bl->m, x1-x0, y1-y0);
			}
		}
	}
	return 0;
}
	
/*==========================================
 * ��?��PC�l?��?���� (unused)
 *------------------------------------------*/
int map_countnearpc (int m, int x, int y)
{
	int bx, by, c = 0;
	struct block_list *bl=NULL;

	if (map[m].users == 0)
		return 0;
	for (by = y/BLOCK_SIZE-AREA_SIZE/BLOCK_SIZE-1; by<=y/BLOCK_SIZE+AREA_SIZE/BLOCK_SIZE+1; by++) {
		if (by < 0 || by >= map[m].bys)
			continue;
		for (bx = x/BLOCK_SIZE-AREA_SIZE/BLOCK_SIZE-1; bx <= x/BLOCK_SIZE+AREA_SIZE/BLOCK_SIZE+1; bx++) {
			if (bx < 0 || bx >= map[m].bxs)
				continue;
			bl = map[m].block[bx+by*map[m].bxs];
			while(bl) {
				if (bl->type == BL_PC)
					c++;
				bl = bl->next;
			}
		}
	}

	return c;
}

/*==========================================
 * Counts specified number of objects on given cell.
 *------------------------------------------*/
int map_count_oncell(int m, int x, int y, int type)
{
	int bx,by;
	struct block_list *bl=NULL;
	int i,c;
	int count = 0;

	if (x < 0 || y < 0 || (x >= map[m].xs) || (y >= map[m].ys))
		return 0;

	bx = x/BLOCK_SIZE;
	by = y/BLOCK_SIZE;

	if (type&~BL_MOB)
	{
		bl = map[m].block[bx+by*map[m].bxs];
		c = map[m].block_count[bx+by*map[m].bxs];
		for(i=0;i<c && bl;i++,bl=bl->next)
			if(bl->x == x && bl->y == y && bl->type&type) count++;
	}
	
	if (type&BL_MOB)
	{
		bl = map[m].block_mob[bx+by*map[m].bxs];
		c = map[m].block_mob_count[bx+by*map[m].bxs];
		for(i=0;i<c && bl;i++,bl=bl->next)
			if(bl->x == x && bl->y == y) count++;
	}
	return count;
}
/*
 * ����E���������̸�Ī���������E�˫ëȪ�����
 */
struct skill_unit *map_find_skill_unit_oncell(struct block_list *target,int x,int y,int skill_id,struct skill_unit *out_unit)
{
	int m,bx,by;
	struct block_list *bl;
	int i,c;
	struct skill_unit *unit;
	m = target->m;

	if (x < 0 || y < 0 || (x >= map[m].xs) || (y >= map[m].ys))
		return NULL;
	bx = x/BLOCK_SIZE;
	by = y/BLOCK_SIZE;

	bl = map[m].block[bx+by*map[m].bxs];
	c = map[m].block_count[bx+by*map[m].bxs];
	for(i=0;i<c && bl;i++,bl=bl->next){
		if (bl->x != x || bl->y != y || bl->type != BL_SKILL)
			continue;
		unit = (struct skill_unit *) bl;
		if (unit==out_unit || !unit->alive ||
				!unit->group || unit->group->skill_id!=skill_id)
			continue;
		if (battle_check_target(&unit->bl,target,unit->group->target_flag)>0)
			return unit;
	}
	return NULL;
}

/*==========================================
 * Adapted from foreachinarea for an easier invocation. [Skotlex]
 *------------------------------------------*/
int map_foreachinrange(int (*func)(struct block_list*,va_list), struct block_list* center, int range, int type, ...)
{
	va_list ap;
	int bx,by,m;
	int returnCount =0;	//total sum of returned values of func() [Skotlex]
	struct block_list *bl=NULL;
	int blockcount=bl_list_count,i,c;
	int x0,x1,y0,y1;
	va_start(ap,type);

	m = center->m;
	x0 = max(center->x-range, 0);
	y0 = max(center->y-range, 0);
	x1 = min(center->x+range, map[m].xs-1);
	y1 = min(center->y+range, map[m].ys-1);
	
	if (type&~BL_MOB)
		for (by = y0 / BLOCK_SIZE; by <= y1 / BLOCK_SIZE; by++) {
			for(bx=x0/BLOCK_SIZE;bx<=x1/BLOCK_SIZE;bx++){
				bl = map[m].block[bx+by*map[m].bxs];
				c = map[m].block_count[bx+by*map[m].bxs];
				for(i=0;i<c && bl;i++,bl=bl->next){
					if(bl && bl->type&type
						&& bl->x>=x0 && bl->x<=x1 && bl->y>=y0 && bl->y<=y1
#ifdef CIRCULAR_AREA
						&& check_distance_bl(center, bl, range)
#endif
					  	&& bl_list_count<BL_LIST_MAX)
						bl_list[bl_list_count++]=bl;
				}
			}
		}
	if(type&BL_MOB)
		for(by=y0/BLOCK_SIZE;by<=y1/BLOCK_SIZE;by++){
			for(bx=x0/BLOCK_SIZE;bx<=x1/BLOCK_SIZE;bx++){
				bl = map[m].block_mob[bx+by*map[m].bxs];
				c = map[m].block_mob_count[bx+by*map[m].bxs];
				for(i=0;i<c && bl;i++,bl=bl->next){
					if(bl
						&& bl->x>=x0 && bl->x<=x1 && bl->y>=y0 && bl->y<=y1
#ifdef CIRCULAR_AREA
						&& check_distance_bl(center, bl, range)
#endif
						&& bl_list_count<BL_LIST_MAX)
						bl_list[bl_list_count++]=bl;
				}
			}
		}

	if(bl_list_count>=BL_LIST_MAX) {
		if(battle_config.error_log)
			ShowWarning("map_foreachinrange: block count too many!\n");
	}

	map_freeblock_lock();	// ����������̉�����֎~����

	for(i=blockcount;i<bl_list_count;i++)
		if(bl_list[i]->prev)	// �L?���ǂ����`�F�b�N
			returnCount += func(bl_list[i],ap);

	map_freeblock_unlock();	// ��������‚���

	va_end(ap);
	bl_list_count = blockcount;
	return returnCount;	//[Skotlex]
}

/*==========================================
 * Same as foreachinrange, but there must be a shoot-able range between center and target to be counted in. [Skotlex]
 *------------------------------------------*/
int map_foreachinshootrange(int (*func)(struct block_list*,va_list),struct block_list* center, int range, int type,...)
{
	va_list ap;
	int bx,by,m;
	int returnCount =0;	//total sum of returned values of func() [Skotlex]
	struct block_list *bl=NULL;
	int blockcount=bl_list_count,i,c;
	int x0,x1,y0,y1;
	m = center->m;
	if (m < 0)
		return 0;
	va_start(ap,type);

	x0 = max(center->x-range, 0);
	y0 = max(center->y-range, 0);
	x1 = min(center->x+range, map[m].xs-1);
	y1 = min(center->y+range, map[m].ys-1);

	if (type&~BL_MOB)
		for (by = y0 / BLOCK_SIZE; by <= y1 / BLOCK_SIZE; by++) {
			for(bx=x0/BLOCK_SIZE;bx<=x1/BLOCK_SIZE;bx++){
				bl = map[m].block[bx+by*map[m].bxs];
				c = map[m].block_count[bx+by*map[m].bxs];
				for(i=0;i<c && bl;i++,bl=bl->next){
					if(bl && bl->type&type
						&& bl->x>=x0 && bl->x<=x1 && bl->y>=y0 && bl->y<=y1
#ifdef CIRCULAR_AREA
						&& check_distance_bl(center, bl, range)
#endif
						&& path_search_long(NULL,center->m,center->x,center->y,bl->x,bl->y)
					  	&& bl_list_count<BL_LIST_MAX)
						bl_list[bl_list_count++]=bl;
				}
			}
		}
	if(type&BL_MOB)
		for(by=y0/BLOCK_SIZE;by<=y1/BLOCK_SIZE;by++){
			for(bx=x0/BLOCK_SIZE;bx<=x1/BLOCK_SIZE;bx++){
				bl = map[m].block_mob[bx+by*map[m].bxs];
				c = map[m].block_mob_count[bx+by*map[m].bxs];
				for(i=0;i<c && bl;i++,bl=bl->next){
					if(bl
						&& bl->x>=x0 && bl->x<=x1 && bl->y>=y0 && bl->y<=y1
#ifdef CIRCULAR_AREA
						&& check_distance_bl(center, bl, range)
#endif
						&& path_search_long(NULL,center->m,center->x,center->y,bl->x,bl->y)
						&& bl_list_count<BL_LIST_MAX)
						bl_list[bl_list_count++]=bl;
				}
			}
		}

	if(bl_list_count>=BL_LIST_MAX) {
		if(battle_config.error_log)
			ShowWarning("map_foreachinrange: block count too many!\n");
	}

	map_freeblock_lock();	// ����������̉�����֎~����

	for(i=blockcount;i<bl_list_count;i++)
		if(bl_list[i]->prev)	// �L?���ǂ����`�F�b�N
			returnCount += func(bl_list[i],ap);

	map_freeblock_unlock();	// ��������‚���

	va_end(ap);
	bl_list_count = blockcount;
	return returnCount;	//[Skotlex]
}

/*==========================================
 * map m (x0,y0)-(x1,y1)?�̑Sobj��?����
 * func����
 * type!=0 �Ȃ炻�̎�ނ̂�
 *------------------------------------------*/
int map_foreachinarea(int (*func)(struct block_list*,va_list), int m, int x0, int y0, int x1, int y1, int type, ...)
{
	va_list ap;
	int bx,by;
	int returnCount =0;	//total sum of returned values of func() [Skotlex]
	struct block_list *bl=NULL;
	int blockcount=bl_list_count,i,c;

	if (m < 0)
		return 0;
	va_start(ap,type);
	if (x1 < x0)
	{	//Swap range
		bx = x0;
		x0 = x1;
		x1 = bx;
	}
	if (y1 < y0)
	{
		bx = y0;
		y0 = y1;
		y1 = bx;
	}
	if (x0 < 0) x0 = 0;
	if (y0 < 0) y0 = 0;
	if (x1 >= map[m].xs) x1 = map[m].xs-1;
	if (y1 >= map[m].ys) y1 = map[m].ys-1;
	
	if (type&~BL_MOB)
		for (by = y0 / BLOCK_SIZE; by <= y1 / BLOCK_SIZE; by++) {
			for(bx = x0 / BLOCK_SIZE; bx <= x1 / BLOCK_SIZE; bx++) {
				bl = map[m].block[bx+by*map[m].bxs];
				c = map[m].block_count[bx+by*map[m].bxs];
				for(i=0;i<c && bl;i++,bl=bl->next){
					if(bl && bl->type&type && bl->x>=x0 && bl->x<=x1 && bl->y>=y0 && bl->y<=y1 && bl_list_count<BL_LIST_MAX)
						bl_list[bl_list_count++]=bl;
				}
			}
		}
	if(type&BL_MOB)
		for(by=y0/BLOCK_SIZE;by<=y1/BLOCK_SIZE;by++){
			for(bx=x0/BLOCK_SIZE;bx<=x1/BLOCK_SIZE;bx++){
				bl = map[m].block_mob[bx+by*map[m].bxs];
				c = map[m].block_mob_count[bx+by*map[m].bxs];
				for(i=0;i<c && bl;i++,bl=bl->next){
					if(bl && bl->x>=x0 && bl->x<=x1 && bl->y>=y0 && bl->y<=y1 && bl_list_count<BL_LIST_MAX)
						bl_list[bl_list_count++]=bl;
				}
			}
		}

	if(bl_list_count>=BL_LIST_MAX) {
		if(battle_config.error_log)
			ShowWarning("map_foreachinarea: block count too many!\n");
	}

	map_freeblock_lock();	// ����������̉�����֎~����

	for(i=blockcount;i<bl_list_count;i++)
		if(bl_list[i]->prev)	// �L?���ǂ����`�F�b�N
			returnCount += func(bl_list[i],ap);

	map_freeblock_unlock();	// ��������‚���

	va_end(ap);
	bl_list_count = blockcount;
	return returnCount;	//[Skotlex]
}

/*==========================================
 * ��`(x0,y0)-(x1,y1)��(dx,dy)�ړ������b�
 * �̈�O�ɂȂ�̈�(��`��L���`)?��obj��
 * ?����func����
 *
 * dx,dy��-1,0,1�݂̂Ƃ���i�ǂ�Ȓl�ł��������ۂ��H�j
 *------------------------------------------*/
int map_foreachinmovearea(int (*func)(struct block_list*,va_list), struct block_list* center, int range, int dx, int dy, int type, ...)
{
	int bx,by,m;
	int returnCount =0;  //total sum of returned values of func() [Skotlex]
	struct block_list *bl=NULL;
	va_list ap;
	int blockcount=bl_list_count,i,c;
	int x0, x1, y0, y1;

	if (!range) return 0;
	if (!dx && !dy) return 0; //No movement.
	va_start(ap,type);
	m = center->m;

	x0 = center->x-range;
	x1 = center->x+range;
	y0 = center->y-range;
	y1 = center->y+range;

	if (x1 < x0)
	{	//Swap range
		bx = x0;
		x0 = x1;
		x1 = bx;
	}
	if (y1 < y0)
	{
		bx = y0;
		y0 = y1;
		y1 = bx;
	}
	if(dx==0 || dy==0){
		//Movement along one axis only.
		if(dx==0){
			if(dy<0) //Moving south
				y0=y1+dy+1;
			else //North
				y1=y0+dy-1;
		} else { //dy == 0
			if(dx<0) //West
				x0=x1+dx+1;
			else //East
				x1=x0+dx-1;
		}
		if(x0<0) x0=0;
		if(y0<0) y0=0;
		if(x1>=map[m].xs) x1=map[m].xs-1;
		if(y1>=map[m].ys) y1=map[m].ys-1;
		for(by=y0/BLOCK_SIZE;by<=y1/BLOCK_SIZE;by++){
			for(bx=x0/BLOCK_SIZE;bx<=x1/BLOCK_SIZE;bx++){
				if (type&~BL_MOB) {
					bl = map[m].block[bx+by*map[m].bxs];
					c = map[m].block_count[bx+by*map[m].bxs];
					for(i=0;i<c && bl;i++,bl=bl->next){
						if(bl->type&type &&
							bl->x>=x0 && bl->x<=x1 &&
							bl->y>=y0 && bl->y<=y1 &&
							bl_list_count<BL_LIST_MAX)
							bl_list[bl_list_count++]=bl;
					}
				}
				if (type&BL_MOB) {
					bl = map[m].block_mob[bx+by*map[m].bxs];
					c = map[m].block_mob_count[bx+by*map[m].bxs];
					for(i=0;i<c && bl;i++,bl=bl->next){
						if(bl->x>=x0 && bl->x<=x1 &&
							bl->y>=y0 && bl->y<=y1 &&
							bl_list_count<BL_LIST_MAX)
							bl_list[bl_list_count++]=bl;
					}
				}
			}
		}
	}else{
		// Diagonal movement
		if(x0<0) x0=0;
		if(y0<0) y0=0;
		if(x1>=map[m].xs) x1=map[m].xs-1;
		if(y1>=map[m].ys) y1=map[m].ys-1;
		for(by=y0/BLOCK_SIZE;by<=y1/BLOCK_SIZE;by++){
			for(bx=x0/BLOCK_SIZE;bx<=x1/BLOCK_SIZE;bx++){
				if (type & ~BL_MOB) {
					bl = map[m].block[bx+by*map[m].bxs];
					c = map[m].block_count[bx+by*map[m].bxs];
					for(i=0;i<c && bl;i++,bl=bl->next){
						if(!(bl->type&type &&
							bl->x>=x0 && bl->x<=x1 &&
							bl->y>=y0 && bl->y<=y1 &&
							bl_list_count<BL_LIST_MAX))
							continue;
						if((dx>0 && bl->x<x0+dx) ||
							(dx<0 && bl->x>x1+dx) ||
							(dy>0 && bl->y<y0+dy) ||
							(dy<0 && bl->y>y1+dy))
							bl_list[bl_list_count++]=bl;
					}
				}
				if (type & BL_MOB) {
					bl = map[m].block_mob[bx+by*map[m].bxs];
					c = map[m].block_mob_count[bx+by*map[m].bxs];
					for(i=0;i<c && bl;i++,bl=bl->next){
						if(!(
							bl->x>=x0 && bl->x<=x1 &&
							bl->y>=y0 && bl->y<=y1 &&
							bl_list_count<BL_LIST_MAX))
							continue;
						if((dx>0 && bl->x<x0+dx) ||
							(dx<0 && bl->x>x1+dx) ||
							(dy>0 && bl->y<y0+dy) ||
							(dy<0 && bl->y>y1+dy))
								bl_list[bl_list_count++]=bl;
					}
				}
			}
		}

	}

	if(bl_list_count>=BL_LIST_MAX) {
		if(battle_config.error_log)
			ShowWarning("map_foreachinmovearea: block count too many!\n");
	}

	map_freeblock_lock();	// ����������̉�����֎~����

	for(i=blockcount;i<bl_list_count;i++)
		if(bl_list[i]->prev)
			returnCount += func(bl_list[i],ap);

	map_freeblock_unlock();	// ��������‚���

	va_end(ap);
	bl_list_count = blockcount;
	return returnCount;
}

// -- moonsoul	(added map_foreachincell which is a rework of map_foreachinarea but
//			 which only checks the exact single x/y passed to it rather than an
//			 area radius - may be more useful in some instances)
//
int map_foreachincell(int (*func)(struct block_list*,va_list), int m, int x, int y, int type, ...)
{
	int bx,by;
	int returnCount =0;  //total sum of returned values of func() [Skotlex]
	struct block_list *bl=NULL;
	va_list ap;
	int blockcount=bl_list_count,i,c;

	if (x < 0 || y < 0 || x >= map[m].xs || y >= map[m].ys) return 0;

	va_start(ap,type);

	by=y/BLOCK_SIZE;
	bx=x/BLOCK_SIZE;

	if(type&~BL_MOB)
	{
		bl = map[m].block[bx+by*map[m].bxs];
		c = map[m].block_count[bx+by*map[m].bxs];
		for(i=0;i<c && bl;i++,bl=bl->next)
		{
			if(bl && bl->type&type && bl->x==x && bl->y==y && bl_list_count<BL_LIST_MAX)
				bl_list[bl_list_count++]=bl;
		}
	}

	if(type&BL_MOB)
	{
		bl = map[m].block_mob[bx+by*map[m].bxs];
		c = map[m].block_mob_count[bx+by*map[m].bxs];
		for(i=0;i<c && bl;i++,bl=bl->next)
		{
			if(bl && bl->x==x && bl->y==y && bl_list_count<BL_LIST_MAX)
				bl_list[bl_list_count++]=bl;
		}
	}

	if(bl_list_count>=BL_LIST_MAX) {
		if(battle_config.error_log)
			ShowWarning("map_foreachincell: block count too many!\n");
	}

	map_freeblock_lock();	// ����������̉�����֎~����

	for(i=blockcount;i<bl_list_count;i++)
		if(bl_list[i]->prev)	// �L?���ǂ����`�F�b�N
			returnCount += func(bl_list[i],ap);

	map_freeblock_unlock();	// ��������‚���

	va_end(ap);
	bl_list_count = blockcount;
	return returnCount;
}

/*============================================================
* For checking a path between two points (x0, y0) and (x1, y1)
*------------------------------------------------------------*/
int map_foreachinpath(int (*func)(struct block_list*,va_list),int m,int x0,int y0,int x1,int y1,int range,int length, int type,...)
{
	int returnCount =0;  //total sum of returned values of func() [Skotlex]
//////////////////////////////////////////////////////////////
//
// sharp shooting 3 [Skotlex]
//
//////////////////////////////////////////////////////////////
// problem:
// Same as Sharp Shooting 1. Hits all targets within range of
// the line.
// (t1,t2 t3 and t4 get hit)
//
//     target 1
//      x t4
//     t2
// t3 x
//   x
//  S
//////////////////////////////////////////////////////////////
// Methodology: 
// My trigonometrics and math are a little rusty... so the approach I am writing 
// here is basicly do a double for to check for all targets in the square that 
// contains the initial and final positions (area range increased to match the 
// radius given), then for each object to test, calculate the distance to the 
// path and include it if the range fits and the target is in the line (0<k<1,
// as they call it).
// The implementation I took as reference is found at 
// http://astronomy.swin.edu.au/~pbourke/geometry/pointline/ 
// (they have a link to a C implementation, too)
// This approach is a lot like #2 commented on this function, which I have no 
// idea why it was commented. I won't use doubles/floats, but pure int math for
// speed purposes. The range considered is always the same no matter how 
// close/far the target is because that's how SharpShooting works currently in
// kRO.

	//Generic map_foreach* variables.
	va_list ap;
	int i, blockcount = bl_list_count;
	struct block_list *bl;
	int c, bx, by;
	//method specific variables
	int magnitude2, len_limit; //The square of the magnitude
	int k, xi, yi, xu, yu;
	int mx0 = x0, mx1 = x1, my0 = y0, my1 = y1;
	
	//Avoid needless calculations by not getting the sqrt right away.
	#define MAGNITUDE2(x0, y0, x1, y1) (((x1)-(x0))*((x1)-(x0)) + ((y1)-(y0))*((y1)-(y0)))
	
	if (m < 0)
		return 0;
		
	va_start(ap,type);

	len_limit = magnitude2 = MAGNITUDE2(x0,y0, x1,y1);
	if (magnitude2 < 1) //Same begin and ending point, can't trace path.
		return 0;

	if (length)
	{	//Adjust final position to fit in the given area.
		//TODO: Find an alternate method which does not requires a square root calculation.
		k = (int)sqrt(magnitude2);
		mx1 = x0 + (x1 - x0)*length/k;
		my1 = y0 + (y1 - y0)*length/k;
		len_limit = MAGNITUDE2(x0,y0, mx1,my1);
	}
	//Expand target area to cover range.
	if (mx0 > mx1)
	{
		mx0+=range;
		mx1-=range;
	} else {
		mx0-=range;
		mx1+=range;
	}
	if (my0 > my1)
	{
		my0+=range;
		my1-=range;
	} else {
		my0-=range;
		my1+=range;
	}

	//The two fors assume mx0 < mx1 && my0 < my1
	if (mx0 > mx1)
	{
		k = mx1;
		mx1 = mx0;
		mx0 = k;
	}
	if (my0 > my1)
	{
		k = my1;
		my1 = my0;
		my0 = k;
	}
	
	if (mx0 < 0) mx0 = 0;
	if (my0 < 0) my0 = 0;
	if (mx1 >= map[m].xs) mx1 = map[m].xs-1;
	if (my1 >= map[m].ys) my1 = map[m].ys-1;
	
	range*=range<<8; //Values are shifted later on for higher precision using int math.
	
	if (type & ~BL_MOB)
		for (by = my0 / BLOCK_SIZE; by <= my1 / BLOCK_SIZE; by++) {
			for(bx=mx0/BLOCK_SIZE;bx<=mx1/BLOCK_SIZE;bx++){
				bl = map[m].block[bx+by*map[m].bxs];
				c = map[m].block_count[bx+by*map[m].bxs];
				for(i=0;i<c && bl;i++,bl=bl->next){
					if(bl && bl->prev && bl->type&type && bl_list_count<BL_LIST_MAX)
					{
						xi = bl->x;
						yi = bl->y;
					
						k = (xi-x0)*(x1-x0) + (yi-y0)*(y1-y0);
						if (k < 0 || k > len_limit) //Since more skills use this, check for ending point as well.
							continue;
						
						if (k > magnitude2 && !path_search_long(NULL,m,x0,y0,xi,yi))
							continue; //Targets beyond the initial ending point need the wall check.

						//All these shifts are to increase the precision of the intersection point and distance considering how it's
						//int math.
						k = (k<<4)/magnitude2; //k will be between 1~16 instead of 0~1
						xi<<=4;
						yi<<=4;
						xu= (x0<<4) +k*(x1-x0);
						yu= (y0<<4) +k*(y1-y0);
						k = MAGNITUDE2(xi, yi, xu, yu);
						
						//If all dot coordinates were <<4 the square of the magnitude is <<8
						if (k > range)
							continue;

						bl_list[bl_list_count++]=bl;
					}
				}
			}
		}
	if(type&BL_MOB)
		for(by=my0/BLOCK_SIZE;by<=my1/BLOCK_SIZE;by++){
			for(bx=mx0/BLOCK_SIZE;bx<=mx1/BLOCK_SIZE;bx++){
				bl = map[m].block_mob[bx+by*map[m].bxs];
				c = map[m].block_mob_count[bx+by*map[m].bxs];
				for(i=0;i<c && bl;i++,bl=bl->next){
					if(bl && bl->prev && bl_list_count<BL_LIST_MAX)
					{
						xi = bl->x;
						yi = bl->y;
						k = (xi-x0)*(x1-x0) + (yi-y0)*(y1-y0);
						if (k < 0 || k > len_limit)
							continue;
				
						if (k > magnitude2 && !path_search_long(NULL,m,x0,y0,xi,yi))
							continue; //Targets beyond the initial ending point need the wall check.
	
						k = (k<<4)/magnitude2; //k will be between 1~16 instead of 0~1
						xi<<=4;
						yi<<=4;
						xu= (x0<<4) +k*(x1-x0);
						yu= (y0<<4) +k*(y1-y0);
						k = MAGNITUDE2(xi, yi, xu, yu);
						
						//If all dot coordinates were <<4 the square of the magnitude is <<8
						if (k > range)
							continue;

						bl_list[bl_list_count++]=bl;
					}
				}
			}
		}

	if(bl_list_count>=BL_LIST_MAX) {
		if(battle_config.error_log)
			ShowWarning("map_foreachinpath: block count too many!\n");
	}

	map_freeblock_lock();

	for(i=blockcount;i<bl_list_count;i++)
		if(bl_list[i]->prev)	//This check is done in case some object gets killed due to further skill processing.
			returnCount += func(bl_list[i],ap);

	map_freeblock_unlock();

	va_end(ap);
	bl_list_count = blockcount;
	return returnCount;	//[Skotlex]

}

// Copy of map_foreachincell, but applied to the whole map. [Skotlex]
int map_foreachinmap(int (*func)(struct block_list*,va_list), int m, int type,...)
{
	int b, bsize;
	int returnCount =0;  //total sum of returned values of func() [Skotlex]
	struct block_list *bl=NULL;
	va_list ap;
	int blockcount=bl_list_count,i,c;

	va_start(ap,type);

	bsize = map[m].bxs * map[m].bys;
	if(type&~BL_MOB)
	{
		for(b=0;b<bsize;b++){
			bl = map[m].block[b];
			c = map[m].block_count[b];
			for(i=0;i<c && bl;i++,bl=bl->next)
			{
				if(bl && 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++){
			bl = map[m].block_mob[b];
			c = map[m].block_mob_count[b];
			for(i=0;i<c && bl;i++,bl=bl->next)
			{
				if(bl && bl_list_count<BL_LIST_MAX)
					bl_list[bl_list_count++]=bl;
			}
		}
	}

	if(bl_list_count>=BL_LIST_MAX) {
		if(battle_config.error_log)
			ShowWarning("map_foreachinmap: block count too many!\n");
	}

	map_freeblock_lock();	// ����������̉�����֎~����

	for(i=blockcount;i<bl_list_count;i++)
		if(bl_list[i]->prev)	// �L?���ǂ����`�F�b�N
			returnCount += func(bl_list[i],ap);

	map_freeblock_unlock();	// ��������‚���

	va_end(ap);
	bl_list_count = blockcount;
	return returnCount;
}

/*==========================================
 * ���A�C�e����G�t�F�N�g�p�̈�Obj����?��
 * object[]�ւ̕ۑ���id_db�o?�܂�
 *
 * bl->id�����̒��Őݒ肵�Ė�薳��?
 *------------------------------------------*/
int map_addobject(struct block_list *bl)
{
	int i;
	if( bl == NULL ){
		ShowWarning("map_addobject nullpo?\n");
		return 0;
	}
	if(first_free_object_id<2 || first_free_object_id>=MAX_FLOORITEM)
		first_free_object_id=2;
	for(i=first_free_object_id;i<MAX_FLOORITEM && objects[i];i++);
	if(i>=MAX_FLOORITEM){
		if(battle_config.error_log)
			ShowWarning("no free object id\n");
		return 0;
	}
	first_free_object_id=i;
	if(last_object_id<i)
		last_object_id=i;
	objects[i]=bl;
	idb_put(id_db,i,bl);
	return i;
}

/*==========================================
 * ��Object�̉��
 *	map_delobject��free���Ȃ��o?�W����
 *------------------------------------------*/
int map_delobjectnofree(int id)
{
	if(objects[id]==NULL)
		return 0;

	map_delblock(objects[id]);
	idb_remove(id_db,id);
	objects[id]=NULL;

	if(first_free_object_id>id)
		first_free_object_id=id;

	while(last_object_id>2 && objects[last_object_id]==NULL)
		last_object_id--;

	return 0;
}

/*==========================================
 * ��Object�̉��
 * block_list����̍폜�Aid_db����̍폜
 * object data��free�Aobject[]�ւ�NULL���
 *
 * add�Ƃ�??���������̂�?�ɂȂ�
 *------------------------------------------*/
int map_delobject(int id)
{
	struct block_list *obj = objects[id];

	if(obj==NULL)
		return 0;

	map_delobjectnofree(id);
	map_freeblock(obj);

	return 0;
}

/*==========================================
 * �S��Obj�����func����
 *
 *------------------------------------------*/
void map_foreachobject(int (*func)(struct block_list*,va_list),int type,...)
{
	int i;
	int blockcount=bl_list_count;
	va_list ap;

	va_start(ap,type);

	for(i=2;i<=last_object_id;i++){
		if(objects[i]){
			if(!(objects[i]->type==type)) // Fixed [Lance]
				continue;
			if(bl_list_count>=BL_LIST_MAX) {
				if(battle_config.error_log)
					ShowWarning("map_foreachobject: too many blocks !\n");
				break;
			}
			bl_list[bl_list_count++]=objects[i];
		}
	}

	map_freeblock_lock();

	for(i=blockcount;i<bl_list_count;i++)
		if( bl_list[i]->prev || bl_list[i]->next )
			func(bl_list[i],ap);

	map_freeblock_unlock();

	va_end(ap);
	bl_list_count = blockcount;
}

/*==========================================
 * ���A�C�e��������
 *
 * data==0�̎b�timer�ŏ������� * data!=0�̎b͏E�����ŏ������bƂ��ē���
 *
 * ��҂́Amap_clearflooritem(id)��
 * map.h?��#define������
 *------------------------------------------*/
int map_clearflooritem_timer(int tid,unsigned int tick,int id,int data)
{
	struct flooritem_data *fitem=NULL;

	fitem = (struct flooritem_data *)objects[id];
	if(fitem==NULL || fitem->bl.type!=BL_ITEM || (!data && fitem->cleartimer != tid)){
		if(battle_config.error_log)
			ShowError("map_clearflooritem_timer : error\n");
		return 1;
	}
	if(data)
		delete_timer(fitem->cleartimer,map_clearflooritem_timer);
	else if(fitem->item_data.card[0] == CARD0_PET)
		intif_delete_petdata( MakeDWord(fitem->item_data.card[1],fitem->item_data.card[2]) );
	clif_clearflooritem(fitem,0);
	map_delobject(fitem->bl.id);

	return 0;
}

/*==========================================
 * (m,x,y) locates a random available free cell around the given coordinates
 * to place an BL_ITEM object. Scan area is 9x9, returns 1 on success.
 * x and y are modified with the target cell when successful.
 *------------------------------------------*/
int map_searchrandfreecell(int m,int *x,int *y,int stack)
{
	int free_cell,i,j;
	int free_cells[9][2];

	for(free_cell=0,i=-1;i<=1;i++){
		if(i+*y<0 || i+*y>=map[m].ys)
			continue;
		for(j=-1;j<=1;j++){
			if(j+*x<0 || j+*x>=map[m].xs)
				continue;
			if(map_getcell(m,j+*x,i+*y,CELL_CHKNOPASS))
				continue;
			//Avoid item stacking to prevent against exploits. [Skotlex]
			if(stack && map_count_oncell(m,j+*x,i+*y, BL_ITEM) > stack)
				continue;
			free_cells[free_cell][0] = j+*x;
			free_cells[free_cell++][1] = i+*y;
		}
	}
	if(free_cell==0)
		return 0;
	free_cell = rand()%free_cell;
	*x = free_cells[free_cell][0];
	*y = free_cells[free_cell][1];
	return 1;
}


static int map_count_sub(struct block_list *bl,va_list ap)
{
	return 1;
}

/*==========================================
 * Locates a random spare cell around the object given, using range as max 
 * distance from that spot. Used for warping functions. Use range < 0 for 
 * whole map range.
 * Returns 1 on success. when it fails and src is available, x/y are set to src's
 * src can be null as long as flag&1
 * when ~flag&1, m is not needed.
 * Flag values:
 * &1 = random cell must be around given m,x,y, not around src
 * &2 = the target should be able to walk to the target tile.
 * &4 = there shouldn't be any players around the target tile (use the no_spawn_on_player setting)
 *------------------------------------------*/
int map_search_freecell(struct block_list *src, int m, short *x,short *y, int rx, int ry, int flag)
{
	int tries, spawn=0;
	int bx, by;
	int rx2 = 2*rx+1;
	int ry2 = 2*ry+1;

	if (!src && (!(flag&1) || flag&2))
	{
		ShowDebug("map_search_freecell: Incorrect usage! When src is NULL, flag has to be &1 and can't have &2\n");
		return 0;
	}

	if (flag&1) {
		bx = *x;
		by = *y;
	} else {
		bx = src->x;
		by = src->y;
		m = src->m;
	}
	if (!rx && !ry) {
		//No range? Return the target cell then....
		*x = bx;
		*y = by;
		return map_getcell(m,*x,*y,CELL_CHKREACH);
	}
	
	if (rx >= 0 && ry >= 0) {
		tries = rx2*ry2;
		if (tries > 100) tries = 100;
	} else {
		tries = map[m].xs*map[m].ys;
		if (tries > 500) tries = 500;
	}
	
	while(tries--) {
		*x = (rx >= 0)?(rand()%rx2-rx+bx):(rand()%(map[m].xs-2)+1);
		*y = (ry >= 0)?(rand()%ry2-ry+by):(rand()%(map[m].ys-2)+1);
		
		if (*x == bx && *y == by)
			continue; //Avoid picking the same target tile.
		
		if (map_getcell(m,*x,*y,CELL_CHKREACH))
		{
			if(flag&2 && !unit_can_reach_pos(src, *x, *y, 1))
				continue;
			if(flag&4) {
				if (spawn >= 100) return 0; //Limit of retries reached.
				if (spawn++ < battle_config.no_spawn_on_player &&
					map_foreachinarea(map_count_sub, m,
						*x-AREA_SIZE, *y-AREA_SIZE,
					  	*x+AREA_SIZE, *y+AREA_SIZE, BL_PC)
				)
				continue;
			}
			return 1;
		}
	}
	*x = bx;
	*y = by;
	return 0;
}

/*==========================================
 * (m,x,y)�𒆐S��3x3��?�ɏ��A�C�e���ݒu
 *
 * item_data��amount�ȊO��copy����
 * type flag: &1 MVP item. &2 do stacking check.
 *------------------------------------------*/
int map_addflooritem(struct item *item_data,int amount,int m,int x,int y,int first_charid,int second_charid,int third_charid,int flags)
{
	int r;
	struct flooritem_data *fitem=NULL;

	nullpo_retr(0, item_data);

	if(!map_searchrandfreecell(m,&x,&y,flags&2?1:0))
		return 0;
	r=rand();

	CREATE(fitem, struct flooritem_data, 1);
	fitem->bl.type=BL_ITEM;
	fitem->bl.prev = fitem->bl.next = NULL;
	fitem->bl.m=m;
	fitem->bl.x=x;
	fitem->bl.y=y;
	fitem->bl.id = map_addobject(&fitem->bl);
	if(fitem->bl.id==0){
		aFree(fitem);
		return 0;
	}

	fitem->first_get_charid = first_charid;
	fitem->first_get_tick = gettick() + (flags&1 ? battle_config.mvp_item_first_get_time : battle_config.item_first_get_time);
	fitem->second_get_charid = second_charid;
	fitem->second_get_tick = fitem->first_get_tick + (flags&1 ? battle_config.mvp_item_second_get_time : battle_config.item_second_get_time);
	fitem->third_get_charid = third_charid;
	fitem->third_get_tick = fitem->second_get_tick + (flags&1 ? battle_config.mvp_item_third_get_time : battle_config.item_third_get_time);

	memcpy(&fitem->item_data,item_data,sizeof(*item_data));
	fitem->item_data.amount=amount;
	fitem->subx=(r&3)*3+3;
	fitem->suby=((r>>2)&3)*3+3;
	fitem->cleartimer=add_timer(gettick()+battle_config.flooritem_lifetime,map_clearflooritem_timer,fitem->bl.id,0);

	map_addblock(&fitem->bl);
	clif_dropflooritem(fitem);

	return fitem->bl.id;
}

static void* create_charid2nick(DBKey key, va_list args)
{
	struct charid2nick *p;
	CREATE(p, struct charid2nick, 1);
	return p;
}

/// Adds(or replaces) the nick of charid to nick_db and fullfils pending requests.
/// Does nothing if the character is online.
void map_addnickdb(int charid, const char* nick)
{
	struct charid2nick* p;
	struct charid_request* req;
	struct map_session_data* sd;

	if( map_charid2sd(charid) )
		return;// already online

	p = idb_ensure(nick_db, charid, create_charid2nick);
	safestrncpy(p->nick, nick, sizeof(p->nick));

	while( p->requests )
	{
		req = p->requests;
		p->requests = req->next;
		sd = map_charid2sd(req->charid);
		if( sd )
			clif_solved_charname(sd->fd, charid, p->nick);
		aFree(req);
	}
}

/// Removes the nick of charid from nick_db.
/// Sends name to all pending requests on charid.
void map_delnickdb(int charid, const char* name)
{
	struct charid2nick* p;
	struct charid_request* req;
	struct map_session_data* sd;

	p = idb_remove(nick_db, charid);
	if( p == NULL )
		return;

	while( p->requests )
	{
		req = p->requests;
		p->requests = req->next;
		sd = map_charid2sd(req->charid);
		if( sd )
			clif_solved_charname(sd->fd, charid, name);
		aFree(req);
	}
	aFree(p);
}

/// Notifies sd of the nick of charid.
/// Uses the name in the character if online.
/// Uses the name in nick_db if offline.
void map_reqnickdb(struct map_session_data * sd, int charid)
{
	struct charid2nick* p;
	struct charid_request* req;
	struct map_session_data* tsd;

	nullpo_retv(sd);

	tsd = map_charid2sd(charid);
	if( tsd )
	{
		clif_solved_charname(sd->fd, charid, tsd->status.name);
		return;
	}

	p = (struct charid2nick*)idb_ensure(nick_db, charid, create_charid2nick);
	if( *p->nick )
	{
		clif_solved_charname(sd->fd, charid, p->nick);
		return;
	}
	// not in cache, request it
	CREATE(req, struct charid_request, 1);
	req->next = p->requests;
	p->requests = req;
	chrif_searchcharid(charid);
}

/*==========================================
 * id_db��bl��lj�
 *------------------------------------------*/
void map_addiddb(struct block_list *bl)
{
	nullpo_retv(bl);

	if (bl->type == BL_PC)
	{
		TBL_PC* sd = (TBL_PC*)bl;
		idb_put(pc_db,sd->bl.id,sd);
		idb_put(charid_db,sd->status.char_id,sd);
	}
	idb_put(id_db,bl->id,bl);
}

/*==========================================
 * id_db����bl���폜
 *------------------------------------------*/
void map_deliddb(struct block_list *bl)
{
	nullpo_retv(bl);

	if (bl->type == BL_PC)
	{
		TBL_PC* sd = (TBL_PC*)bl;
		idb_remove(pc_db,sd->bl.id);
		idb_remove(charid_db,sd->status.char_id);
	}
	idb_remove(id_db,bl->id);
}

/*==========================================
 * PC��quit?�� map.c?��
 *
 * quit?���̎�?���Ⴄ�悤��?�����Ă���
 *------------------------------------------*/
int map_quit(struct map_session_data *sd)
{
	if(!sd->state.auth) { //Removing a player that hasn't even finished loading
		TBL_PC *sd2 = map_id2sd(sd->status.account_id);
		if (sd->pd) unit_free(&sd->pd->bl,-1);
		if (sd->hd) unit_free(&sd->hd->bl,-1);
		//Double login, let original do the cleanups below.
		if (sd2 && sd2 != sd)
			return 0;
		map_deliddb(&sd->bl);
		return 0;
	}
	if(!sd->state.waitingdisconnect) {
		if (sd->npc_timer_id != -1) //Cancel the event timer.
			npc_timerevent_quit(sd);
		if (sd->state.event_disconnect)
			npc_script_event(sd, NPCE_LOGOUT);

		sd->state.waitingdisconnect = 1;
		if (sd->pd) unit_free(&sd->pd->bl,0);
		if (sd->hd) unit_free(&sd->hd->bl,0);
		unit_free(&sd->bl,3);
		chrif_save(sd,1);
	} else { //Try to free some data, without saving anything (this could be invoked on map server change. [Skotlex]
		if (sd->bl.prev != NULL)
			unit_remove_map(&sd->bl, 0);
		if (sd->pd && sd->pd->bl.prev != NULL)
			unit_remove_map(&sd->pd->bl, 0);
		if (sd->hd && sd->hd->bl.prev != NULL)
			unit_remove_map(&sd->hd->bl, 0);
	}

	idb_remove(id_db,sd->bl.id);

	if(sd->reg)
	{	//Double logout already freed pointer fix... [Skotlex]
		aFree(sd->reg);
		sd->reg = NULL;
		sd->reg_num = 0;
	}
	if(sd->regstr)
	{
		aFree(sd->regstr);
		sd->regstr = NULL;
		sd->regstr_num = 0;
	}
	if (sd->st) {
		if (sd->st->stack)
			script_free_stack (sd->st->stack);
		aFree(sd->st);
		sd->st = NULL;
		sd->npc_id = 0;
	}
	if(sd->fd)
  	{	//Player will be free'd on save-ack. [Skotlex]
		if (session[sd->fd])
			session[sd->fd]->session_data = NULL;
		sd->fd = 0;
	}
	return 0;
}

void map_quit_ack(struct map_session_data *sd)
{
	if (sd && sd->state.finalsave) {
		idb_remove(pc_db,sd->status.account_id);
		idb_remove(charid_db,sd->status.char_id);
		aFree(sd);
	}
}

static int do_reconnect_map_sub(DBKey key,void *data,va_list va)
{
	struct map_session_data *sd = (TBL_PC*)data;
	if (sd->state.finalsave) {
		sd->state.finalsave = 0;
		chrif_save(sd, 1); //Resend to save!
		return 1;
	}
	return 0;
}

void do_reconnect_map(void)
{
	pc_db->foreach(pc_db,do_reconnect_map_sub);
}

/*==========================================
 * id��?��PC��T���B���Ȃ����NULL
 *------------------------------------------*/
struct map_session_data * map_id2sd(int id)
{
	if (id <= 0) return NULL;
	return (struct map_session_data*)idb_get(pc_db,id);
}

/// Returns the nick of the target charid or NULL if unknown (requests the nick to the char server).
const char* map_charid2nick(int charid)
{
	struct charid2nick *p;
	struct map_session_data* sd;

	sd = map_charid2sd(charid);
	if( sd )
		return sd->status.name;// character is online, return it's name

	p = (struct charid2nick*)idb_ensure(nick_db, charid, create_charid2nick);
	if( *p->nick )
		return p->nick;// name in nick_db

	chrif_searchcharid(charid);// request the name
	return NULL;
}

/// Returns the struct map_session_data of the charid or NULL if the char is not online.
struct map_session_data* map_charid2sd(int charid)
{
	return (struct map_session_data*)idb_get(charid_db, charid);
}

/*==========================================
 * Search session data from a nick name
 * (without sensitive case if necessary)
 * return map_session_data pointer or NULL
 *------------------------------------------*/
struct map_session_data * map_nick2sd(const char *nick)
{
	int i, users;
	struct map_session_data *pl_sd = NULL, **pl_allsd;

	if (nick == NULL)
		return NULL;

	pl_allsd = map_getallusers(&users);
	if (battle_config.partial_name_scan)
	{
		int qty = 0, nicklen = strlen(nick);
		struct map_session_data *sd = NULL;
		for (i = 0; i < users; i++) {
			pl_sd = pl_allsd[i];
			// Without case sensitive check (increase the number of similar character names found)
			if (strnicmp(pl_sd->status.name, nick, nicklen) == 0) {
				// Strict comparison (if found, we finish the function immediatly with correct value)
				if (strcmp(pl_sd->status.name, nick) == 0)
					return pl_sd;
				qty++;
				sd = pl_sd;
			}
		}
		// We return the found index of a similar account ONLY if there is 1 similar character
		if (qty == 1)
			return sd;
	} else { //Exact Search
		for (i = 0; i < users; i++) {
			if (strcasecmp(pl_allsd[i]->status.name, nick) == 0)
				return pl_allsd[i];
		}
	}
	//Not found.
	return NULL;
}

struct map_session_data * map_nick2sd_nocase(const char *nick)
{
	int i, users;
	struct map_session_data **pl_allsd;

	pl_allsd = map_getallusers(&users);
	for (i = 0; i < users; i++)
	{
		if ( !strcmp(pl_allsd[i]->status.name, nick) )
			return pl_allsd[i];
	}

	return NULL;
}

/*==========================================
 * id��?�̕���T��
 * ��Object�̏ꍇ�͔z��������̂�
 *------------------------------------------*/
struct block_list * map_id2bl(int id)
{
	struct block_list *bl=NULL;
	if(id >= 0 && id < ARRAYLENGTH(objects))
		bl = objects[id];
	else
		bl = idb_get(id_db,id);

	return bl;
}

static int map_getallpc_sub(DBKey key,void * data,va_list ap)
{
	struct map_session_data *sd = (struct map_session_data*) data;
	if (!sd->state.auth || sd->state.waitingdisconnect || sd->state.finalsave)
		return 1; //Do not count in not-yet authenticated characters or ready to disconnect ones.

	return 0;
}

/*==========================================
 * Returns an array of all players in the server (includes non connected ones) [Skotlex]
 * The int pointer given returns the count of elements in the array.
 * If null is passed, it is requested that the memory be freed (for shutdown), and null is returned.
 *------------------------------------------*/
struct map_session_data** map_getallusers(int *users)
{
	static struct map_session_data **all_sd=NULL;
	static unsigned int all_count = 0;

	if (users == NULL)
	{	//Free up data
		if (all_sd) aFree(all_sd);
		all_sd = NULL;
		return NULL;
	}

	if (all_sd == NULL)
	{	//Init data
		all_count = pc_db->size(pc_db); //This is the real number of chars in the db, better use this than the actual "online" count.
		if (all_count < 1)
			all_count = 10; //Allow room for at least 10 chars.
		all_sd = aCalloc(all_count, sizeof(struct map_session_data*)); //it's actually just the size of a pointer.
	}

	if (all_count < pc_db->size(pc_db))
	{
		all_count = pc_db->size(pc_db)+10; //Give some room to prevent doing reallocs often.
		all_sd = aRealloc(all_sd, all_count*sizeof(struct map_session_data*));
	}
	*users = pc_db->getall(pc_db,(void**)all_sd,all_count,map_getallpc_sub);
	if (*users > (signed int)all_count) //Which should be impossible...
		*users = all_count;
	return all_sd;
}

void map_foreachpc(int (*func)(DBKey,void*,va_list),...)
{
	va_list ap;
	va_start(ap,func);
	pc_db->vforeach(pc_db,func,ap);
	va_end(ap);
}

/*==========================================
 * id_db?�̑S�Ă�func��?�s
 *------------------------------------------*/
int map_foreachiddb(int (*func)(DBKey,void*,va_list),...)
{
	va_list ap;

	va_start(ap,func);
	id_db->vforeach(id_db,func,ap);
	va_end(ap);
	return 0;
}

/*==========================================
 * map.npc�֒lj� (warp���̗̈掝���̂�)
 *------------------------------------------*/
int map_addnpc(int m,struct npc_data *nd)
{
	int i;
	if(m<0 || m>=map_num)
		return -1;
	for(i=0;i<map[m].npc_num && i<MAX_NPC_PER_MAP;i++)
		if(map[m].npc[i]==NULL)
			break;
	if(i==MAX_NPC_PER_MAP){
		if(battle_config.error_log)
			ShowWarning("too many NPCs in one map %s\n",map[m].name);
		return -1;
	}
	if(i==map[m].npc_num){
		map[m].npc_num++;
	}

	nullpo_retr(0, nd);

	map[m].npc[i]=nd;
	nd->n = i;
	idb_put(id_db,nd->bl.id,nd);

	return i;
}

void map_removenpc(void)
{
	int i,m,n=0;

	for(m=0;m<map_num;m++) {
		for(i=0;i<map[m].npc_num && i<MAX_NPC_PER_MAP;i++) {
			if(map[m].npc[i]!=NULL) {
				clif_clearunit_area(&map[m].npc[i]->bl,2);
				map_delblock(&map[m].npc[i]->bl);
				idb_remove(id_db,map[m].npc[i]->bl.id);
				if(map[m].npc[i]->bl.subtype==SCRIPT) {
					aFree(map[m].npc[i]->u.scr.script);
					aFree(map[m].npc[i]->u.scr.label_list);
				}
				aFree(map[m].npc[i]);
				map[m].npc[i] = NULL;
				n++;
			}
		}
	}
	
	ShowStatus("Successfully removed and freed from memory '"CL_WHITE"%d"CL_RESET"' NPCs.\n",n);
}

/*=========================================
 * Dynamic Mobs [Wizputer]
 *-----------------------------------------*/
// allocates a struct when it there is place free in the cache,
// and returns NULL otherwise
// -- i'll just leave the old code in case it's needed ^^;
int map_addmobtolist(unsigned short m, struct spawn_data *spawn)
{
	size_t i;
	for (i = 0; i < MAX_MOB_LIST_PER_MAP; i++) {
		if (map[m].moblist[i] == NULL) {
			map[m].moblist[i] = spawn;
			return i;
		}
	}
	return -1;
}

void map_spawnmobs(int m)
{
	int i, k=0;
	if (map[m].mob_delete_timer != -1)
	{	//Mobs have not been removed yet [Skotlex]
		delete_timer(map[m].mob_delete_timer, map_removemobs_timer);
		map[m].mob_delete_timer = -1;
		return;
	}
	for(i=0; i<MAX_MOB_LIST_PER_MAP; i++)
		if(map[m].moblist[i]!=NULL)
		{
			k+=map[m].moblist[i]->num;
			npc_parse_mob2(map[m].moblist[i],i);
		}

	if (battle_config.etc_log && k > 0)
	{
		ShowStatus("Map %s: Spawned '"CL_WHITE"%d"CL_RESET"' mobs.\n",map[m].name, k);
	}
}

int mob_cache_cleanup_sub(struct block_list *bl, va_list ap)
{
	struct mob_data *md = (struct mob_data *)bl;
	nullpo_retr(0, md);

	//When not to remove:
	//Mob has the cached flag on 0
	if (!md->special_state.cached)
		return 0;
	if (!battle_config.mob_remove_damaged && 
		md->status.hp < md->status.max_hp)
	{
		if (md->spawn && md->spawn_n >= 0) //Do not respawn mob later.
			map[md->spawn->m].moblist[md->spawn_n]->skip++;
		return 0; //Do not remove damaged mobs.
	}
	
	unit_free(&md->bl,0);

	return 1;
}

int map_removemobs_timer(int tid, unsigned int tick, int id, int data)
{
	int k;
	if (id < 0 || id >= MAX_MAP_PER_SERVER)
	{	//Incorrect map id!
		if (battle_config.error_log)
			ShowError("map_removemobs_timer error: timer %d points to invalid map %d\n",tid, id);
		return 0;
	}
	if (map[id].mob_delete_timer != tid)
	{	//Incorrect timer call!
		if (battle_config.error_log)
			ShowError("map_removemobs_timer mismatch: %d != %d (map %s)\n",map[id].mob_delete_timer, tid, map[id].name);
		return 0;
	}
	map[id].mob_delete_timer = -1;
	if (map[id].users > 0) //Map not empty!
		return 1;
	k = map_foreachinmap(mob_cache_cleanup_sub, id, BL_MOB);

	if (battle_config.etc_log && k > 0)
		ShowStatus("Map %s: Removed '"CL_WHITE"%d"CL_RESET"' mobs.\n",map[id].name, k);
	
	return 1;
}

void map_removemobs(int m)
{
	if (map[m].mob_delete_timer != -1)
		return; //Mobs are already scheduled for removal

	map[m].mob_delete_timer = add_timer(gettick()+battle_config.mob_remove_delay, map_removemobs_timer, m, 0);
}

/*==========================================
 * map������map��?��?��
 *------------------------------------------*/
int map_mapname2mapid(const char* name)
{
	unsigned short map_index;
	map_index = mapindex_name2id(name);
	if (!map_index)
		return -1;
	return map_mapindex2mapid(map_index);
}

/*==========================================
 * Returns the map of the given mapindex. [Skotlex]
 *------------------------------------------*/
int map_mapindex2mapid(unsigned short mapindex)
{
	struct map_data *md=NULL;
	
	if (!mapindex)
		return -1;
	
	md = (struct map_data*)uidb_get(map_db,(unsigned int)mapindex);
	if(md==NULL || md->gat==NULL)
		return -1;
	return md->m;
}

/*==========================================
 * ���Imap������ip,port?��
 *------------------------------------------*/
int map_mapname2ipport(unsigned short name, uint32* ip, uint16* port)
{
	struct map_data_other_server *mdos=NULL;

	mdos = (struct map_data_other_server*)uidb_get(map_db,(unsigned int)name);
	if(mdos==NULL || mdos->gat) //If gat isn't null, this is a local map.
		return -1;
	*ip=mdos->ip;
	*port=mdos->port;
	return 0;
}

/*==========================================
 * Checks if both dirs point in the same direction.
 *------------------------------------------*/
int map_check_dir(int s_dir,int t_dir)
{
	if(s_dir == t_dir)
		return 0;
	switch(s_dir) {
		case 0: if(t_dir == 7 || t_dir == 1 || t_dir == 0) return 0; break;
		case 1: if(t_dir == 0 || t_dir == 2 || t_dir == 1) return 0; break;
		case 2: if(t_dir == 1 || t_dir == 3 || t_dir == 2) return 0; break;
		case 3: if(t_dir == 2 || t_dir == 4 || t_dir == 3) return 0; break;
		case 4: if(t_dir == 3 || t_dir == 5 || t_dir == 4) return 0; break;
		case 5: if(t_dir == 4 || t_dir == 6 || t_dir == 5) return 0; break;
		case 6: if(t_dir == 5 || t_dir == 7 || t_dir == 6) return 0; break;
		case 7: if(t_dir == 6 || t_dir == 0 || t_dir == 7) return 0; break;
	}
	return 1;
}

/*==========================================
 * Returns the direction of the given cell, relative to 'src'
 *------------------------------------------*/
uint8 map_calc_dir(struct block_list* src, int x, int y)
{
	unsigned char dir = 0;
	int dx, dy;
	
	nullpo_retr(0, src);
	
	dx = x-src->x;
	dy = y-src->y;
	if( dx == 0 && dy == 0 )
	{	// both are standing on the same spot
		//dir = 6; // aegis-style, makes knockback default to the left
		dir = unit_getdir(src); // athena-style, makes knockback default to behind 'src'
	}
	else if( dx >= 0 && dy >=0 )
	{	// upper-right
		if( dx*2 <= dy )      dir = 0;	// up
		else if( dx > dy*2 )  dir = 6;	// right
		else                  dir = 7;	// up-right
	}
	else if( dx >= 0 && dy <= 0 )
	{	// lower-right
		if( dx*2 <= -dy )     dir = 4;	// down
		else if( dx > -dy*2 ) dir = 6;	// right
		else                  dir = 5;	// down-right
	}
	else if( dx <= 0 && dy <= 0 )
	{	// lower-left
		if( dx*2 >= dy )      dir = 4;	// down
		else if( dx < dy*2 )  dir = 2;	// left
		else                  dir = 3;	// down-left
	}
	else
	{	// upper-left
		if( -dx*2 <= dy )     dir = 0;	// up
		else if( -dx > dy*2 ) dir = 2;	// left
		else                  dir = 1;	// up-left
	
	}
	return dir;
}

/*==========================================
 * Randomizes target cell x,y to a random walkable cell that 
 * has the same distance from object as given coordinates do. [Skotlex]
 *------------------------------------------*/
int map_random_dir(struct block_list *bl, short *x, short *y)
{
	struct walkpath_data wpd;
	short xi = *x-bl->x;
	short yi = *y-bl->y;
	short i=0, j;
	int dist2 = xi*xi + yi*yi;
	short dist = (short)sqrt(dist2);
	short segment;
	
	if (dist < 1) dist =1;
	
	do {
		j = rand()%8; //Pick a random direction
		segment = 1+(rand()%dist); //Pick a random interval from the whole vector in that direction
		xi = bl->x + segment*dirx[j];
		segment = (short)sqrt(dist2 - segment*segment); //The complement of the previously picked segment
		yi = bl->y + segment*diry[j];
	} while ((
		map_getcell(bl->m,xi,yi,CELL_CHKNOPASS)  ||
		path_search_real(&wpd,bl->m,bl->x,bl->y,xi,yi,1,CELL_CHKNOREACH) == -1)
		&& (++i)<100);
	
	if (i < 100) {
		*x = xi;
		*y = yi;
		return 1;
	}
	return 0;
}
// gat�n
/*==========================================
 * (m,x,y)�̏�Ԃ𒲂ׂ�
 *------------------------------------------*/
int map_getcell(int m,int x,int y,cell_t cellchk)
{
	return (m < 0 || m >= MAX_MAP_PER_SERVER) ? 0 : map_getcellp(&map[m],x,y,cellchk);
}

int map_getcellp(struct map_data* m,int x,int y,cell_t cellchk)
{
	int type, type2;
#ifdef CELL_NOSTACK
	int type3;
#endif

	nullpo_ret(m);

	if(x<0 || x>=m->xs-1 || y<0 || y>=m->ys-1)
	{
		if(cellchk==CELL_CHKNOPASS) return 1;
		return 0;
	}
	type = m->gat[x+y*m->xs];
	type2 = m->cell[x+y*m->xs];
#ifdef CELL_NOSTACK
	type3 = m->cell_bl[x+y*m->xs];
#endif

	switch(cellchk)
	{
		case CELL_CHKPASS:
#ifdef CELL_NOSTACK
			if (type3 >= battle_config.cell_stack_limit) return 0;
#endif
		case CELL_CHKREACH:
			return (type!=1 && type!=5 && !(type2&CELL_ICEWALL));
		case CELL_CHKNOPASS:
#ifdef CELL_NOSTACK
			if (type3 >= battle_config.cell_stack_limit) return 1;
#endif
		case CELL_CHKNOREACH:
			return (type==1 || type==5 || type2&CELL_ICEWALL);
		case CELL_CHKSTACK:
#ifdef CELL_NOSTACK
			return (type3 >= battle_config.cell_stack_limit);
#else
			return 0;
#endif
		case CELL_CHKWALL:
			return (type==1/* || type2&CELL_ICEWALL*/); //Uncomment to prevent sniping/casting through the icewall. [Skotlex]
		case CELL_CHKWATER:
			return (type==3);
		case CELL_CHKGROUND:
			return (type==5 || type2&CELL_ICEWALL);
		case CELL_GETTYPE:
			return type;
		case CELL_GETCELLTYPE:
			return type2;
		case CELL_CHKNPC:
			return (type2&CELL_NPC);
		case CELL_CHKPNEUMA:
			return (type2&CELL_PNEUMA);
		case CELL_CHKSAFETYWALL:
			return (type2&CELL_SAFETYWALL);
		case CELL_CHKBASILICA:
			return (type2&CELL_BASILICA);
		case CELL_CHKLANDPROTECTOR:
			return (type2&CELL_LANDPROTECTOR);
		case CELL_CHKREGEN:
			return (type2&CELL_REGEN);
		case CELL_CHKICEWALL:
			return (type2&CELL_ICEWALL);
		default:
			return 0;
	}
}

/*==========================================
 * (m,x,y)�̏�Ԃ�ݒ肷��
 *------------------------------------------*/
void map_setcell(int m,int x,int y,int cell)
{
	int j;
	if(x<0 || x>=map[m].xs || y<0 || y>=map[m].ys)
		return;
	j=x+y*map[m].xs;

	switch (cell) {
		case CELL_SETNPC:           map[m].cell[j] |= CELL_NPC;            break;
		case CELL_CLRNPC:           map[m].cell[j] &= ~CELL_NPC;           break;
		case CELL_SETICEWALL:       map[m].cell[j] |= CELL_ICEWALL;        break;
		case CELL_CLRICEWALL:       map[m].cell[j] &= ~CELL_ICEWALL;       break;
		case CELL_SETBASILICA:      map[m].cell[j] |= CELL_BASILICA;       break;
		case CELL_CLRBASILICA:      map[m].cell[j] &= ~CELL_BASILICA;      break;
		case CELL_SETPNEUMA:        map[m].cell[j] |= CELL_PNEUMA;         break;
		case CELL_CLRPNEUMA:        map[m].cell[j] &= ~CELL_PNEUMA;        break;
		case CELL_SETSAFETYWALL:    map[m].cell[j] |= CELL_SAFETYWALL;     break;
		case CELL_CLRSAFETYWALL:    map[m].cell[j] &= ~CELL_SAFETYWALL;    break;
		case CELL_SETLANDPROTECTOR: map[m].cell[j] |= CELL_LANDPROTECTOR;  break;
		case CELL_CLRLANDPROTECTOR: map[m].cell[j] &= ~CELL_LANDPROTECTOR; break;
		case CELL_SETREGEN:         map[m].cell[j] |= CELL_REGEN;          break;
		default:
			map[m].gat[j] = cell;
			break;
	}
}
static void* create_map_data_other_server(DBKey key, va_list args)
{
	struct map_data_other_server *mdos;
	unsigned short mapindex = (unsigned short)key.ui;
	mdos=(struct map_data_other_server *)aCalloc(1,sizeof(struct map_data_other_server));
	mdos->index = mapindex;
	memcpy(mdos->name, mapindex_id2name(mapindex), MAP_NAME_LENGTH);
	return mdos;
}

/*==========================================
 * ���I�Ǘ��̃}�b�v��db�ɒlj�
 *------------------------------------------*/
int map_setipport(unsigned short mapindex, uint32 ip, uint16 port)
{
	struct map_data_other_server *mdos=NULL;

	mdos=(struct map_data_other_server *)uidb_ensure(map_db,(unsigned int)mapindex, create_map_data_other_server);
	
	if(mdos->gat) //Local map,Do nothing. Give priority to our own local maps over ones from another server. [Skotlex]
		return 0;
	if(ip == clif_getip() && port == clif_getport()) {
		//That's odd, we received info that we are the ones with this map, but... we don't have it.
		ShowFatalError("map_setipport : received info that this map-server SHOULD have map '%s', but it is not loaded.\n",mapindex_id2name(mapindex));
		exit(EXIT_FAILURE);
	}
	mdos->ip   = ip;
	mdos->port = port;
	return 1;
}

/*==========================================
 * ���I�Ǘ��̃}�b�v��S�č폜
 *------------------------------------------*/
int map_eraseallipport_sub(DBKey key,void *data,va_list va)
{
	struct map_data_other_server *mdos = (struct map_data_other_server*)data;
	if(mdos->gat == NULL) {
		db_remove(map_db,key);
		aFree(mdos);
	}
	return 0;
}

int map_eraseallipport(void)
{
	map_db->foreach(map_db,map_eraseallipport_sub);
	return 1;
}

/*==========================================
 * ���I�Ǘ��̃}�b�v��db����폜
 *------------------------------------------*/
int map_eraseipport(unsigned short mapindex, uint32 ip, uint16 port)
{
	struct map_data_other_server *mdos;

	mdos = uidb_get(map_db,(unsigned int)mapindex);
	if(!mdos || mdos->gat) //Map either does not exists or is a local map.
		return 0;

	if(mdos->ip==ip && mdos->port == port) {
		uidb_remove(map_db,(unsigned int)mapindex);
		aFree(mdos);
		return 1;
	}
	return 0;
}

/*==========================================
* Map cache reading
*===========================================*/
int map_readfromcache(struct map_data *m, FILE *fp)
{
	int i;
	struct map_cache_main_header header;
	struct map_cache_map_info info;
	unsigned long size;
	unsigned char *buf;

	if(!fp)
		return 0;

	fseek(fp, 0, SEEK_SET);
	fread(&header, sizeof(struct map_cache_main_header), 1, fp);

	for(i = 0; i < header.map_count; i++) {
		fread(&info, sizeof(struct map_cache_map_info), 1, fp);
		if(strcmp(m->name, info.name) == 0) { // Map found
			m->xs = info.xs;
			m->ys = info.ys;
			m->gat = (unsigned char *)aMalloc(m->xs*m->ys); // Allocate room for map cells data
			buf = aMalloc(info.len); // Allocate a temp buffer to read the zipped map
			fread(buf, info.len, 1, fp);
			size = m->xs*m->ys;
			decode_zip(m->gat, &size, buf, info.len); // Unzip the map from the buffer
			aFree(buf);
			return 1;
		} else // Map not found, jump to the beginning of the next map info header
			fseek(fp, info.len, SEEK_CUR);
	}

	return 0;
}

int map_addmap(char* mapname)
{
	if (strcmpi(mapname,"clear")==0) {
		map_num=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++;
	return 0;
}

static void map_delmapid(int id)
{
	ShowNotice("Removing map [ %s ] from maplist\n"CL_CLL,map[id].name);
	memmove(map+id, map+id+1, sizeof(map[0])*(map_num-id-1));
	map_num--;
}

int map_delmap(char* mapname)
{
	int i;
	char map_name[MAP_NAME_LENGTH];

	if (strcmpi(mapname, "all") == 0) {
		map_num = 0;
		return 0;
	}

	mapindex_getmapname(mapname, map_name);
	for(i = 0; i < map_num; i++) {
		if (strcmp(map[i].name, map_name) == 0) {
			map_delmapid(i);
			return 1;
		}
	}
	return 0;
}

#define NO_WATER 1000000

/*
 * Reads from the .rsw for each map
 * Returns water height (or NO_WATER if file doesn't exist) or other error is encountered.
 * Assumed path for file is data/mapname.rsw
 * Credits to LittleWolf
 */
int map_waterheight(char* mapname)
{
	char fn[256];
 	char *rsw, *found;

	//Look up for the rsw
	sprintf(fn, "data\\%s.rsw", mapname);

	found = grfio_find_file(fn);
	if (found) strcpy(fn, found); // replace with real name
	
	// read & convert fn
	rsw = (char *) grfio_read (fn);
	if (rsw)
	{	//Load water height from file
		int wh = (int) *(float*)(rsw+166);
		aFree(rsw);
		return wh;
	}
	ShowWarning("Failed to find water level for (%s)\n", mapname, fn);
	return NO_WATER;
}

/*==================================
 * .GAT format
 *----------------------------------*/
int map_readgat (struct map_data* m)
{
	char fn[256];
	char *gat;
	int wh,x,y,xs,ys;
	struct gat_1cell {float high[4]; int type;} *p = NULL;

	sprintf(fn, "data\\%s.gat", m->name);

	// read & convert fn
	gat = (char *) grfio_read (fn);
	if (gat == NULL)
		return 0;

	xs = m->xs = *(int*)(gat+6);
	ys = m->ys = *(int*)(gat+10);
	m->gat = (unsigned char *)aMallocA((xs * ys)*sizeof(unsigned char));

	wh = map_waterheight(m->name);
	for (y = 0; y < ys; y++) {
		p = (struct gat_1cell*)(gat+y*xs*20+14);
		for (x = 0; x < xs; x++) {
			if (wh != NO_WATER && p->type == 0)
				// ���ꔻ��
				m->gat[x+y*xs] = (p->high[0]>wh || p->high[1]>wh || p->high[2]>wh || p->high[3]>wh) ? 3 : 0;
			else
				m->gat[x+y*xs] = p->type;
			p++;
		}
	}

	aFree(gat);

	return 1;
}

/*======================================
 * Initiate maps loading stage
 *--------------------------------------*/
int map_readallmaps (void)
{
	int i;
	FILE* fp=NULL;
	int maps_removed = 0;

	if( enable_grf )
		ShowStatus("Loading maps (using GRF files)...\n");
	else
	{
		ShowStatus("Loading maps (using %s as map cache)...\n", map_cache_file);
		if( (fp = fopen(map_cache_file, "rb")) == NULL )
		{
			ShowFatalError("Unable to open map cache file "CL_WHITE"%s"CL_RESET"\n", map_cache_file);
			exit(EXIT_FAILURE); //No use launching server if maps can't be read.
		}
	}

	for(i = 0; i < map_num; i++)
	{
		size_t size;

		// show progress
		ShowStatus("Loading maps [%i/%i]: %s"CL_CLL"\r", i, map_num, map[i].name);

		// try to load the map
		if( !
			(enable_grf?
				 map_readgat(&map[i])
				:map_readfromcache(&map[i], fp))
			) {
			map_delmapid(i);
			maps_removed++;
			i--;
			continue;
		}

		map[i].index = mapindex_name2id(map[i].name);

		if (uidb_get(map_db,(unsigned int)map[i].index) != NULL)
		{
			ShowWarning("Map %s already loaded!\n"CL_CLL, map[i].name);
			if (map[i].gat) {
				aFree(map[i].gat);
				map[i].gat = NULL;	
			}
			map_delmapid(i);
			maps_removed++;
			i--;
			continue;
		}

		uidb_put(map_db, (unsigned int)map[i].index, &map[i]);

		map[i].m = i;
		memset(map[i].moblist, 0, sizeof(map[i].moblist));	//Initialize moblist [Skotlex]
		map[i].mob_delete_timer = -1;	//Initialize timer [Skotlex]
		if(battle_config.pk_mode)
			map[i].flag.pvp = 1; // make all maps pvp for pk_mode [Valaris]

		map[i].cell = (unsigned char *)aCalloc(map[i].xs * map[i].ys, sizeof(unsigned char));
#ifdef CELL_NOSTACK
		map[i].cell_bl = (unsigned char *)aCalloc(map[i].xs * map[i].ys, sizeof(unsigned char));
#endif

		map[i].bxs = (map[i].xs + BLOCK_SIZE - 1) / BLOCK_SIZE;
		map[i].bys = (map[i].ys + BLOCK_SIZE - 1) / BLOCK_SIZE;
		
		// default experience multiplicators
		map[i].jexp = 100;
		map[i].bexp = 100;
		
		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);

		size = map[i].bxs * map[i].bys * sizeof(int);
		map[i].block_count = (int*)aCallocA(size, 1);
		map[i].block_mob_count = (int*)aCallocA(size, 1);
	}

	if( !enable_grf )
		fclose(fp);

	// finished map loading
	ShowInfo("Successfully loaded '"CL_WHITE"%d"CL_RESET"' maps."CL_CLL"\n",map_num);

	if (maps_removed)
		ShowNotice("Maps removed: '"CL_WHITE"%d"CL_RESET"'\n",maps_removed);

	return 0;
}

////////////////////////////////////////////////////////////////////////
static int map_ip_set = 0;
static int char_ip_set = 0;

/*==========================================
 * Console Command Parser [Wizputer]
 *------------------------------------------*/
int parse_console(char* buf)
{
	char type[64];
	char command[64];
	char map[64];
	int x = 0;
	int y = 0;
	int m;
	int n;
	struct map_session_data sd;

	memset(&sd, 0, sizeof(struct map_session_data));
	strcpy(sd.status.name, "console");

	if( (n=sscanf(buf, "%[^:]:%[^:]:%99s %d %d[^\n]",type,command,map,&x,&y)) < 5 )
		if( (n=sscanf(buf, "%[^:]:%[^\n]",type,command)) < 2 )
			n = sscanf(buf,"%[^\n]",type);

	if( n == 5 ) {
		m = map_mapname2mapid(map);
		if( m < 0 ){
			ShowWarning("Console: Unknown map\n");
			return 0;
		}
		sd.bl.m = m;
		map_search_freecell(&sd.bl, m, &sd.bl.x, &sd.bl.y, -1, -1, 0); 
		if( x > 0 )
			sd.bl.x = x;
		if( y > 0 )
			sd.bl.y = y;
	} else {
		map[0] = '\0';
		if( n < 2 ) command[0] = '\0';
		if( n < 1 ) type[0] = '\0';
	}

	ShowInfo("Type of command: '%s' || Command: '%s' || Map: '%s' Coords: %d %d\n", type, command, map, x, y);

	if( n == 5 && strcmpi("admin",type) == 0 ){
		if( is_atcommand_sub(sd.fd,&sd,command,99) == AtCommand_None )
			printf("Console: not atcommand\n");
	} else if( n == 2 && strcmpi("server",type) == 0 ){
		if( strcmpi("shutdown",command) == 0 ||
			strcmpi("exit",command) == 0 ||
			strcmpi("quit",command) == 0 ){
			runflag = 0;
		}
	} else if( strcmpi("help",type) == 0 ){
		ShowNotice("To use GM commands:\n");
		printf("admin:<gm command>:<map of \"gm\"> <x> <y>\n");
		printf("You can use any GM command that doesn't require the GM.\n");
		printf("No using @item or @warp however you can use @charwarp\n");
		printf("The <map of \"gm\"> <x> <y> is for commands that need coords of the GM\n");
		printf("IE: @spawn\n");
		printf("To shutdown the server:\n");
		printf("server:shutdown\n");
	}

	return 0;
}

/*==========================================
 * �ݒ�t�@�C����?��?��
 *------------------------------------------*/
int map_config_read(char *cfgName)
{
	char line[1024], w1[1024], w2[1024], *ptr;
	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))
	{
		if (line[0] == '/' && line[1] == '/')
			continue;

		if ((ptr = strstr(line, "//")) != NULL)
			*ptr = '\n'; //Strip comments

		if (sscanf(line, "%[^:]: %[^\t\r\n]", w1, w2) == 2) {
			//Strip trailing spaces
			ptr = w2 + strlen(w2);
			while (--ptr >= w2 && *ptr == ' ');
			ptr++;
			*ptr = '\0';
			
			if(strcmpi(w1,"timestamp_format")==0){
				strncpy(timestamp_format, w2, 20);
			} else if(strcmpi(w1,"stdout_with_ansisequence")==0){
				stdout_with_ansisequence = config_switch(w2);
			} else if(strcmpi(w1,"console_silent")==0){
				ShowInfo("Console Silent Setting: %d\n", atoi(w2));
				msg_silent = atoi(w2);
			} else if (strcmpi(w1, "userid")==0){
				chrif_setuserid(w2);
			} else if (strcmpi(w1, "passwd") == 0) {
				chrif_setpasswd(w2);
			} else if (strcmpi(w1, "char_ip") == 0) {
				char_ip_set = chrif_setip(w2);
			} else if (strcmpi(w1, "char_port") == 0) {
				chrif_setport(atoi(w2));
			} else if (strcmpi(w1, "map_ip") == 0) {
				map_ip_set = clif_setip(w2);
			} else if (strcmpi(w1, "bind_ip") == 0) {
				clif_setbindip(w2);
			} else if (strcmpi(w1, "map_port") == 0) {
				clif_setport(atoi(w2));
				map_port = (atoi(w2));
			} else if (strcmpi(w1, "map") == 0) {
				map_addmap(w2);
			} else if (strcmpi(w1, "delmap") == 0) {
				map_delmap(w2);
			} else if (strcmpi(w1, "npc") == 0) {
				npc_addsrcfile(w2);
			} else if (strcmpi(w1, "delnpc") == 0) {
				npc_delsrcfile(w2);
			} else if (strcmpi(w1, "autosave_time") == 0) {
				autosave_interval = atoi(w2);
				if (autosave_interval < 1) //Revert to default saving.
					autosave_interval = DEFAULT_AUTOSAVE_INTERVAL;
				else
					autosave_interval *= 1000; //Pass from sec to ms
			} else if (strcmpi(w1, "minsave_time") == 0) {
				minsave_interval= atoi(w2);
				if (minsave_interval < 1)
					minsave_interval = 1;
			} else if (strcmpi(w1, "save_settings") == 0) {
				save_settings = atoi(w2);
			} else if (strcmpi(w1, "motd_txt") == 0) {
				strcpy(motd_txt, w2);
			} else if (strcmpi(w1, "help_txt") == 0) {
				strcpy(help_txt, w2);
			} else if (strcmpi(w1, "help2_txt") == 0) {
				strcpy(help2_txt, w2);
			} else if (strcmpi(w1, "charhelp_txt") == 0) {
				strcpy(charhelp_txt, w2);
			} else if (strcmpi(w1, "mapreg_txt") == 0) {
				strcpy(mapreg_txt, w2);
			} else if(strcmpi(w1,"map_cache_file") == 0) {
				strncpy(map_cache_file,w2,255);
			} else if(strcmpi(w1,"db_path") == 0) {
				strncpy(db_path,w2,255);
			} else if (strcmpi(w1, "console") == 0) {
				console = config_switch(w2);
				if (console)
					ShowNotice("Console Commands are enabled.\n");
			} else if (strcmpi(w1, "enable_spy") == 0) {
				enable_spy = config_switch(w2);
			} else if (strcmpi(w1, "use_grf") == 0) {
				enable_grf = config_switch(w2);
			} else if (strcmpi(w1, "import") == 0) {
				map_config_read(w2);
			} else
				ShowWarning("Unknown setting '%s' in file %s\n", w1, cfgName);
		}
	}
	fclose(fp);

	return 0;
}

int inter_config_read(char *cfgName)
{
	int i;
	char line[1024],w1[1024],w2[1024];
	FILE *fp;

	fp=fopen(cfgName,"r");
	if(fp==NULL){
		ShowError("File not found: '%s'.\n",cfgName);
		return 1;
	}
	while(fgets(line, sizeof(line), fp))
	{
		if(line[0] == '/' && line[1] == '/')
			continue;
		i=sscanf(line,"%[^:]: %[^\r\n]",w1,w2);
		if(i!=2)
			continue;
		if(strcmpi(w1,"party_share_level")==0){
			party_share_level = config_switch(w2);
		} else if(strcmpi(w1,"lowest_gm_level")==0){
			lowest_gm_level = atoi(w2);
		
		/* Main chat nick [LuzZza] */
		} else if(strcmpi(w1, "main_chat_nick")==0){
			strcpy(main_chat_nick, w2);
			
	#ifndef TXT_ONLY
		} else if(strcmpi(w1,"item_db_db")==0){
			strcpy(item_db_db,w2);
		} else if(strcmpi(w1,"mob_db_db")==0){
			strcpy(mob_db_db,w2);
		} else if(strcmpi(w1,"item_db2_db")==0){
			strcpy(item_db2_db,w2);
		} else if(strcmpi(w1,"mob_db2_db")==0){
			strcpy(mob_db2_db,w2);
		} else if (strcmpi(w1, "char_db") == 0) {
			strcpy(char_db, w2);
		//Map Server SQL DB
		} else if(strcmpi(w1,"map_server_ip")==0){
			strcpy(map_server_ip, w2);
		} else if(strcmpi(w1,"map_server_port")==0){
			map_server_port=atoi(w2);
		} else if(strcmpi(w1,"map_server_id")==0){
			strcpy(map_server_id, w2);
		} else if(strcmpi(w1,"map_server_pw")==0){
			strcpy(map_server_pw, w2);
		} else if(strcmpi(w1,"map_server_db")==0){
			strcpy(map_server_db, w2);
		} else if(strcmpi(w1,"default_codepage")==0){
			strcpy(default_codepage, w2);
		} else if(strcmpi(w1,"use_sql_db")==0){
			db_use_sqldbs = config_switch(w2);
			ShowStatus ("Using SQL dbs: %s\n",w2);
		} else if(strcmpi(w1,"log_db")==0) {
			strcpy(log_db, w2);
		} else if(strcmpi(w1,"log_db_ip")==0) {
			strcpy(log_db_ip, w2);
		} else if(strcmpi(w1,"log_db")==0) {
			strcpy(log_db, w2);
		} else if(strcmpi(w1,"log_db_id")==0) {
			strcpy(log_db_id, w2);
		} else if(strcmpi(w1,"log_db_pw")==0) {
			strcpy(log_db_pw, w2);
		} else if(strcmpi(w1,"log_db_port")==0) {
			log_db_port = atoi(w2);
	#endif
		//support the import command, just like any other config
		} else if(strcmpi(w1,"import")==0){
			inter_config_read(w2);
		}
	}
	fclose(fp);

	return 0;
}

#ifndef TXT_ONLY
/*=======================================
 *  MySQL Init
 *---------------------------------------*/
int map_sql_init(void)
{
	// main db connection
	mmysql_handle = Sql_Malloc();

	ShowInfo("Connecting to the Map DB Server....\n");
	if( SQL_ERROR == Sql_Connect(mmysql_handle, map_server_id, map_server_pw, map_server_ip, map_server_port, map_server_db) )
		exit(EXIT_FAILURE);
	ShowStatus("connect success! (Map Server Connection)\n");

	if( strlen(default_codepage) > 0 )
		if ( SQL_ERROR == Sql_SetEncoding(mmysql_handle, default_codepage) )
			Sql_ShowDebug(mmysql_handle);

	return 0;
}

int map_sql_close(void)
{
	ShowStatus("Close Map DB Connection....\n");
	Sql_Free(mmysql_handle);
	mmysql_handle = NULL;

	if (log_config.sql_logs)
	{
		ShowStatus("Close Log DB Connection....\n");
		Sql_Free(logmysql_handle);
		logmysql_handle = NULL;
	}

	return 0;
}

int log_sql_init(void)
{
	// log db connection
	logmysql_handle = Sql_Malloc();

	ShowInfo(""CL_WHITE"[SQL]"CL_RESET": Connecting to the Log Database "CL_WHITE"%s"CL_RESET" At "CL_WHITE"%s"CL_RESET"...\n",log_db,log_db_ip);
	if ( SQL_ERROR == Sql_Connect(logmysql_handle, log_db_id, log_db_pw, log_db_ip, log_db_port, log_db) )
		exit(EXIT_FAILURE);
	ShowStatus(""CL_WHITE"[SQL]"CL_RESET": Successfully '"CL_GREEN"connected"CL_RESET"' to Database '"CL_WHITE"%s"CL_RESET"'.\n", log_db);

	if( strlen(default_codepage) > 0 )
		if ( SQL_ERROR == Sql_SetEncoding(logmysql_handle, default_codepage) )
			Sql_ShowDebug(logmysql_handle);

	return 0;
}

/*=============================================
 * Does a mysql_ping to all connection handles
 *---------------------------------------------*/
int map_sql_ping(int tid, unsigned int tick, int id, int data) 
{
	ShowInfo("Pinging SQL server to keep connection alive...\n");
	Sql_Ping(mmysql_handle);
	if (log_config.sql_logs)
		Sql_Ping(logmysql_handle);
	return 0;
}

int sql_ping_init(void)
{
	uint32 connection_timeout, connection_ping_interval;

	// set a default value
	connection_timeout = 28800; // 8 hours

	// ask the mysql server for the timeout value
	Sql_GetTimeout(mmysql_handle, &connection_timeout);
	if (connection_timeout < 60)
		connection_timeout = 60;

	// establish keepalive
	connection_ping_interval = connection_timeout - 30; // 30-second reserve
	add_timer_func_list(map_sql_ping, "map_sql_ping");
	add_timer_interval(gettick() + connection_ping_interval*1000, map_sql_ping, 0, 0, connection_ping_interval*1000);

	return 0;
}
#endif /* not TXT_ONLY */

int map_db_final(DBKey k,void *d,va_list ap)
{
	struct map_data_other_server *mdos = (struct map_data_other_server*)d;
	if(mdos && mdos->gat == NULL)
		aFree(mdos);
	return 0;
}

int nick_db_final(DBKey key, void *data, va_list args)
{
	struct charid2nick* p = (struct charid2nick*)data;
	struct charid_request* req;

	if( p == NULL )
		return 0;
	while( p->requests )
	{
		req = p->requests;
		p->requests = req->next;
		aFree(req);
	}
	aFree(p);
	return 0;
}

int cleanup_sub(struct block_list *bl, va_list ap)
{
	nullpo_retr(0, bl);

	switch(bl->type) {
		case BL_PC:
			map_quit((struct map_session_data *) bl);
			break;
		case BL_NPC:
			npc_unload((struct npc_data *)bl);
			break;
		case BL_MOB:
			unit_free(bl,0);
			break;
		case BL_PET:
		//There is no need for this, the pet is removed together with the player. [Skotlex]
			break;
		case BL_ITEM:
			map_clearflooritem(bl->id);
			break;
		case BL_SKILL:
			skill_delunit((struct skill_unit *) bl);
			break;
	}

	return 1;
}

static int cleanup_db_sub(DBKey key,void *data,va_list va)
{
	return cleanup_sub((struct block_list*)data, NULL);
}

static int cleanup_db_subpc(DBKey key,void *data,va_list va)
{
	struct map_session_data *sd = (TBL_PC*)data;
	if (!sd->state.finalsave)
  	{	//Error?
		ShowError("do_final: Player character in DB which was not sent to save! %d:%d\n", sd->status.account_id, sd->status.char_id);
		map_quit(sd); //Attempt force-save
	}
	//Force remove from memory...
	map_quit_ack(sd);
	return 1;
}

/*==========================================
 * map�I�I���E��
 *------------------------------------------*/
void do_final(void)
{
	int i, j;
	struct map_session_data **pl_allsd;

	ShowStatus("Terminating...\n");

	for (i = 0; i < map_num; i++)
		if (map[i].m >= 0)
			map_foreachinmap(cleanup_sub, i, BL_ALL);

	//Scan any remaining players (between maps?) to kick them out. [Skotlex]
	pl_allsd = map_getallusers(&j);
	for (i = 0; i < j; i++)
		map_quit(pl_allsd[i]);
		
	id_db->foreach(id_db,cleanup_db_sub);
	chrif_char_reset_offline();
	chrif_flush_fifo();
  	//Online players were sent to save, but the ack will not arrive on time!
	//They have to be removed from memory, and assume the char-server saved them.
	pc_db->foreach(pc_db,cleanup_db_subpc);

	do_final_atcommand();
	do_final_battle();
	do_final_chrif();
	do_final_npc();
	do_final_script();
	do_final_itemdb();
	do_final_storage();
	do_final_guild();
	do_final_party();
	do_final_pc();
	do_final_pet();
	do_final_mob();
	do_final_msg();
	do_final_skill();
	do_final_unit();
	if(use_irc)
		do_final_irc();

	map_getallusers(NULL); //Clear the memory allocated for this array.
	
	map_db->destroy(map_db, map_db_final);
	
	for (i=0; i<map_num; i++) {
		if(map[i].gat) aFree(map[i].gat);
		if(map[i].cell) aFree(map[i].cell);
#ifdef CELL_NOSTACK
		if(map[i].cell_bl) aFree(map[i].cell_bl);
#endif
		if(map[i].block) aFree(map[i].block);
		if(map[i].block_mob) aFree(map[i].block_mob);
		if(map[i].block_count) aFree(map[i].block_count);
		if(map[i].block_mob_count) aFree(map[i].block_mob_count);
		if(battle_config.dynamic_mobs) { //Dynamic mobs flag by [random]
			for (j=0; j<MAX_MOB_LIST_PER_MAP; j++)
				if (map[i].moblist[j]) aFree(map[i].moblist[j]);
		}
	}

	mapindex_final();
	if(enable_grf)
		grfio_final();

	id_db->destroy(id_db, NULL);
	pc_db->destroy(pc_db, NULL);
	nick_db->destroy(nick_db, nick_db_final);
	charid_db->destroy(charid_db, NULL);

#ifndef TXT_ONLY
    map_sql_close();
#endif /* not TXT_ONLY */
	ShowStatus("Successfully terminated.\n");
}

static int map_abort_sub(DBKey key,void * data,va_list ap)
{
	struct map_session_data *sd = (TBL_PC*)data;

	if (!sd->state.auth || sd->state.waitingdisconnect || sd->state.finalsave) 
		return 0;

	chrif_save(sd,1);
	return 1;
}


//------------------------------
// Function called when the server
// has received a crash signal.
//------------------------------
void do_abort(void)
{
	static int run = 0;
	//Save all characters and then flush the inter-connection.
	if (run) {
		ShowFatalError("Server has crashed while trying to save characters. Character data can't be saved!\n");
		return;
	}
	run = 1;
	if (!chrif_isconnected())
	{
		if (pc_db->size(pc_db))
			ShowFatalError("Server has crashed without a connection to the char-server, %u characters can't be saved!\n", pc_db->size(pc_db));
		return;
	}
	ShowError("Server received crash signal! Attempting to save all online characters!\n");
	map_foreachpc(map_abort_sub);
	chrif_flush_fifo();
}

/*======================================================
 * Map-Server Version Screen [MC Cameri]
 *------------------------------------------------------*/
void map_helpscreen(int flag)
{
	puts("Usage: map-server [options]");
	puts("Options:");
	puts(CL_WHITE"  Commands\t\t\tDescription"CL_RESET);
	puts("-----------------------------------------------------------------------------");
	puts("  --help, --h, --?, /?		Displays this help screen");
	puts("  --map-config <file>		Load map-server configuration from <file>");
	puts("  --battle-config <file>	Load battle configuration from <file>");
	puts("  --atcommand-config <file>	Load atcommand configuration from <file>");
	puts("  --charcommand-config <file>	Load charcommand configuration from <file>");
	puts("  --script-config <file>	Load script configuration from <file>");
	puts("  --msg-config <file>		Load message configuration from <file>");
	puts("  --grf-path-file <file>	Load grf path file configuration from <file>");
	puts("  --sql-config <file>		Load inter-server configuration from <file>");
	puts("				(SQL Only)");
	puts("  --log-config <file>		Load logging configuration from <file>");
	puts("				(SQL Only)");
	puts("  --version, --v, -v, /v	Displays the server's version");
	puts("\n");
	if (flag) exit(EXIT_FAILURE);
}

/*======================================================
 * Map-Server Version Screen [MC Cameri]
 *------------------------------------------------------*/
void map_versionscreen(int flag)
{
	printf("CL_WHITE" "eAthena version %d.%02d.%02d, Athena Mod version %d" CL_RESET"\n",
		ATHENA_MAJOR_VERSION, ATHENA_MINOR_VERSION, ATHENA_REVISION,
		ATHENA_MOD_VERSION);
	puts(CL_GREEN "Website/Forum:" CL_RESET "\thttp://eathena.deltaanime.net/");
	puts(CL_GREEN "Download URL:" CL_RESET "\thttp://eathena.systeminplace.net/");
	puts(CL_GREEN "IRC Channel:" CL_RESET "\tirc://irc.deltaanime.net/#athena");
	puts("\nOpen " CL_WHITE "readme.html" CL_RESET " for more information.");
	if (ATHENA_RELEASE_FLAG) ShowNotice("This version is not for release.\n");
	if (flag) exit(EXIT_FAILURE);
}

/*======================================================
 * Map-Server Init and Command-line Arguments [Valaris]
 *------------------------------------------------------*/
void set_server_type(void)
{
	SERVER_TYPE = ATHENA_SERVER_MAP;
}

int do_init(int argc, char *argv[])
{
	int i;

#ifdef GCOLLECT
	GC_enable_incremental();
#endif

	INTER_CONF_NAME="conf/inter_athena.conf";
	LOG_CONF_NAME="conf/log_athena.conf";
	MAP_CONF_NAME = "conf/map_athena.conf";
	BATTLE_CONF_FILENAME = "conf/battle_athena.conf";
	ATCOMMAND_CONF_FILENAME = "conf/atcommand_athena.conf";
	CHARCOMMAND_CONF_FILENAME = "conf/charcommand_athena.conf";
	SCRIPT_CONF_NAME = "conf/script_athena.conf";
	MSG_CONF_NAME = "conf/msg_athena.conf";

	srand(gettick());

	for (i = 1; i < argc ; i++) {
		if (strcmp(argv[i], "--help") == 0 || strcmp(argv[i], "--h") == 0 || strcmp(argv[i], "--?") == 0 || strcmp(argv[i], "/?") == 0)
			map_helpscreen(1);
		else if (strcmp(argv[i], "--version") == 0 || strcmp(argv[i], "--v") == 0 || strcmp(argv[i], "-v") == 0 || strcmp(argv[i], "/v") == 0)
			map_versionscreen(1);
		else if (strcmp(argv[i], "--map_config") == 0 || strcmp(argv[i], "--map-config") == 0)
			MAP_CONF_NAME=argv[i+1];
		else if (strcmp(argv[i],"--battle_config") == 0 || strcmp(argv[i],"--battle-config") == 0)
			BATTLE_CONF_FILENAME = argv[i+1];
		else if (strcmp(argv[i],"--atcommand_config") == 0 || strcmp(argv[i],"--atcommand-config") == 0)
			ATCOMMAND_CONF_FILENAME = argv[i+1];
		else if (strcmp(argv[i],"--charcommand_config") == 0 || strcmp(argv[i],"--charcommand-config") == 0)
			CHARCOMMAND_CONF_FILENAME = argv[i+1];
		else if (strcmp(argv[i],"--script_config") == 0 || strcmp(argv[i],"--script-config") == 0)
			SCRIPT_CONF_NAME = argv[i+1];
		else if (strcmp(argv[i],"--msg_config") == 0 || strcmp(argv[i],"--msg-config") == 0)
			MSG_CONF_NAME = argv[i+1];
#ifndef TXT_ONLY
		else if (strcmp(argv[i],"--inter_config") == 0 || strcmp(argv[i],"--inter-config") == 0)
			INTER_CONF_NAME = argv[i+1];
#endif
		else if (strcmp(argv[i],"--log_config") == 0 || strcmp(argv[i],"--log-config") == 0)
			LOG_CONF_NAME = argv[i+1];
		else if (strcmp(argv[i],"--run_once") == 0)	// close the map-server as soon as its done.. for testing [Celest]
			runflag = 0;
	}

	map_config_read(MAP_CONF_NAME);
	irc_read_conf(IRC_CONF); // [Zido]
	chrif_checkdefaultlogin();

	if (!map_ip_set || !char_ip_set) {
		char ip_str[16];
		ip2str(addr_[0], ip_str);

		ShowError("\nNot all IP addresses in map_athena.conf configured, autodetecting...\n");

		if (naddr_ == 0)
			ShowError("Unable to determine your IP address...\n");
		else if (naddr_ > 1)
			ShowNotice("Multiple interfaces detected...\n");

		ShowInfo("Defaulting to %s as our IP address\n", ip_str);

		if (!map_ip_set)
			clif_setip(ip_str);
		if (!char_ip_set)
			chrif_setip(ip_str);
	}

	if (SHOW_DEBUG_MSG)
		ShowNotice("Server running in '"CL_WHITE"Debug Mode"CL_RESET"'.\n");


	battle_config_read(BATTLE_CONF_FILENAME);
	msg_config_read(MSG_CONF_NAME);
	atcommand_config_read(ATCOMMAND_CONF_FILENAME);
	charcommand_config_read(CHARCOMMAND_CONF_FILENAME);
	script_config_read(SCRIPT_CONF_NAME);
	inter_config_read(INTER_CONF_NAME);
	log_config_read(LOG_CONF_NAME);

	id_db = db_alloc(__FILE__,__LINE__,DB_INT,DB_OPT_BASE,sizeof(int));
	pc_db = db_alloc(__FILE__,__LINE__,DB_INT,DB_OPT_BASE,sizeof(int));	//Added for reliable map_id2sd() use. [Skotlex]
	map_db = db_alloc(__FILE__,__LINE__,DB_UINT,DB_OPT_BASE,sizeof(int));
	nick_db = db_alloc(__FILE__,__LINE__,DB_INT,DB_OPT_BASE,sizeof(int));
	charid_db = db_alloc(__FILE__,__LINE__,DB_INT,DB_OPT_BASE,sizeof(int));
#ifndef TXT_ONLY
	map_sql_init();
#endif /* not TXT_ONLY */

	mapindex_init();
	if(enable_grf)
		grfio_init("conf/grf-files.txt");	//[blackhole89] - restore

	map_readallmaps();

	add_timer_func_list(map_freeblock_timer, "map_freeblock_timer");
	add_timer_func_list(map_clearflooritem_timer, "map_clearflooritem_timer");
	add_timer_func_list(map_removemobs_timer, "map_removemobs_timer");
	add_timer_interval(gettick()+1000, map_freeblock_timer, 0, 0, 60*1000);

	if(use_irc)
		do_init_irc();
	do_init_atcommand();
	do_init_battle();
	do_init_chrif();
	do_init_clif();
	do_init_script();
	do_init_itemdb();
	do_init_skill();
	do_init_mob();
	do_init_pc();
	do_init_status();
	do_init_party();
	do_init_guild();
	do_init_storage();
	do_init_pet();
	do_init_merc();	//[orn]
	do_init_npc();
	do_init_unit();
#ifndef TXT_ONLY /* mail system [Valaris] */
	if (log_config.sql_logs)
		log_sql_init();

	sql_ping_init();
#endif /* not TXT_ONLY */

	npc_event_do_oninit();	// npc��OnInit�C�x���g?�s

	if( console )
	{
		//##TODO invoke a CONSOLE_START plugin event
	}

	if (battle_config.pk_mode == 1)
		ShowNotice("Server is running on '"CL_WHITE"PK Mode"CL_RESET"'.\n");

	ShowStatus("Server is '"CL_GREEN"ready"CL_RESET"' and listening on port '"CL_WHITE"%d"CL_RESET"'.\n\n", map_port);

	return 0;
}