/***************************************************************************
 *  Original Diku Mud copyright (C) 1990, 1991 by Sebastian Hammer,        *
 *  Michael Seifert, Hans Henrik St{rfeldt, Tom Madsen, and Katja Nyboe.   *
 *                                                                         *
 *  Merc Diku Mud improvments copyright (C) 1992, 1993 by Michael          *
 *  Chastain, Michael Quan, and Mitchell Tse.                              *
 *                                                                         *
 *  In order to use any part of this Merc Diku Mud, you must comply with   *
 *  both the original Diku license in 'license.doc' as well the Merc       *
 *  license in 'license.txt'.  In particular, you may not remove either of *
 *  these copyright notices.                                               *
 *                                                                         *
 *  Much time and thought has gone into this software and you are          *
 *  benefitting.  We hope that you share your changes too.  What goes      *
 *  around, comes around.                                                  *
 ***************************************************************************/

/***************************************************************************
*	ROM 2.4 is copyright 1993-1998 Russ Taylor			   *
*	ROM has been brought to you by the ROM consortium		   *
*	    Russ Taylor (rtaylor@hypercube.org)				   *
*	    Gabrielle Taylor (gtaylor@hypercube.org)			   *
*	    Brian Moore (zump@rom.org)					   *
*	By using this code, you have agreed to follow the terms of the	   *
*	ROM license, in the file Rom24/doc/rom.license			   *
***************************************************************************/

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <time.h>
#include <sys/types.h>
#if !defined(WIN32)
#include <unistd.h>
#include <sys/time.h>
#include <sys/resource.h>
#else
#include <process.h>
#include <sys/timeb.h>
#include <winsock2.h>
#endif
#define	IN_DB_C
#include "merc.h"
#include "db.h"
#include "recycle.h"
#include "music.h"
#include "tables.h"
#include "lookup.h"
#include "olc.h"
#include "interp.h"
#include "winstuff.h"
#undef IN_DB_C

extern int _filbuf args ( ( FILE * ) );

#if !defined(OLD_RAND)
#if !defined(linux) && !defined(WIN32)
long random (  );
#endif
#endif

/*
 * Globals.
 */
HELP_DATA *help_first;
HELP_DATA *help_last;

HELP_AREA *had_list;

SHOP_DATA *shop_first;
SHOP_DATA *shop_last;

MPROG_CODE *mprog_list;

char bug_buf[2 * MAX_INPUT_LENGTH];
CHAR_DATA *char_list;
char *help_greeting;
char log_buf[2 * MAX_INPUT_LENGTH];
KILL_DATA kill_table[MAX_LEVEL];
OBJ_DATA *object_list;
TIME_INFO_DATA time_info;
WEATHER_DATA weather_info;

/*
 * Locals.
 */
MOB_INDEX_DATA *mob_index_hash[MAX_KEY_HASH];
OBJ_INDEX_DATA *obj_index_hash[MAX_KEY_HASH];
ROOM_INDEX_DATA *room_index_hash[MAX_KEY_HASH];
char *string_hash[MAX_KEY_HASH];

AREA_DATA *area_first;
AREA_DATA *area_last;
AREA_DATA *current_area;

char *string_space;
char *top_string;
char str_empty[1];

int top_affect;
int top_area;
int top_ed;
int top_exit;
int top_help;
int top_mob_index;
int top_obj_index;
int top_reset;
int top_room;
int top_shop;
VNUM top_vnum_room;             /* OLC */
VNUM top_vnum_mob;              /* OLC */
VNUM top_vnum_obj;              /* OLC */
int top_mprog_index;            /* OLC */
int mobile_count = 0;
int newmobs = 0;
int newobjs = 0;

/*
 * Semi-locals.
 */
bool fBootDb;
FILE *fpArea;
char strArea[MAX_INPUT_LENGTH];

/*
 * Local booting procedures.
*/
void init_mm args ( ( void ) );
void load_area args ( ( FILE * fp ) );
void new_load_area args ( ( FILE * fp ) );  /* OLC */
void load_helps args ( ( FILE * fp, char *fname ) );
void load_old_mob args ( ( FILE * fp ) );
void load_old_obj args ( ( FILE * fp ) );
void load_resets args ( ( FILE * fp ) );
void load_rooms args ( ( FILE * fp ) );
void load_shops args ( ( FILE * fp ) );
void load_specials args ( ( FILE * fp ) );
void load_mobprogs args ( ( FILE * fp ) );

void fix_exits args ( ( void ) );
void fix_mobprogs args ( ( void ) );

/*
 * Big mama top level function.
 */
void boot_db ( void )
{

    /*
     * Init some data space stuff.
     */
    {
        top_string = strspace_alloc (  );
        fBootDb = TRUE;
    }

    /*
     * Init random number generator.
     */
    {
        init_mm (  );
    }

    /*
     * Set time and weather.
     */
    {
        long lhour, lday, lmonth;

        lhour =
            ( current_time - 650336715 ) / ( PULSE_TICK / PULSE_PER_SECOND );
        time_info.hour = lhour % 24;
        lday = lhour / 24;
        time_info.day = lday % 35;
        lmonth = lday / 35;
        time_info.month = lmonth % 17;
        time_info.year = lmonth / 17;

        if ( time_info.hour < 5 )
            weather_info.sunlight = SUN_DARK;
        else if ( time_info.hour < 6 )
            weather_info.sunlight = SUN_RISE;
        else if ( time_info.hour < 19 )
            weather_info.sunlight = SUN_LIGHT;
        else if ( time_info.hour < 20 )
            weather_info.sunlight = SUN_SET;
        else
            weather_info.sunlight = SUN_DARK;

        weather_info.change = 0;
        weather_info.mmhg = 960;
        if ( time_info.month >= 7 && time_info.month <= 12 )
            weather_info.mmhg += number_range ( 1, 50 );
        else
            weather_info.mmhg += number_range ( 1, 80 );

        if ( weather_info.mmhg <= 980 )
            weather_info.sky = SKY_LIGHTNING;
        else if ( weather_info.mmhg <= 1000 )
            weather_info.sky = SKY_RAINING;
        else if ( weather_info.mmhg <= 1020 )
            weather_info.sky = SKY_CLOUDY;
        else
            weather_info.sky = SKY_CLOUDLESS;

    }

    /*
     * Assign gsn's for skills which have them.
     */
    {
        int sn;

        for ( sn = 0; sn < MAX_SKILL; sn++ )
        {
            if ( skill_table[sn].pgsn != NULL )
                *skill_table[sn].pgsn = sn;
        }
    }

    /*
     * Read in all the area files.
     */
    {
        FILE *fpList;

        if ( ( fpList = file_open ( AREA_LIST, "r" ) ) == NULL )
        {
            perror ( AREA_LIST );
            exit ( 1 );
        }

        for ( ;; )
        {
            strcpy ( strArea, fread_word ( fpList ) );
            if ( strArea[0] == '$' )
                break;

            if ( strArea[0] == '-' )
            {
                fpArea = stdin;
            }
            else
            {
                if ( ( fpArea = file_open ( strArea, "r" ) ) == NULL )
                {
                    perror ( strArea );
                    exit ( 1 );
                }
            }

            logf ( "Loading %s...", strArea );
            current_area = NULL;

            for ( ;; )
            {
                char *word;

                if ( fread_letter ( fpArea ) != '#' )
                {
                    bug ( "Boot_db: # not found.", 0 );
                    exit ( 1 );
                }

                word = fread_word ( fpArea );

                if ( word[0] == '$' )
                    break;
                else if ( !str_cmp ( word, "AREA" ) )
                    load_area ( fpArea );
                /* OLC */
                else if ( !str_cmp ( word, "AREADATA" ) )
                    new_load_area ( fpArea );
                else if ( !str_cmp ( word, "HELPS" ) )
                    load_helps ( fpArea, strArea );
                else if ( !str_cmp ( word, "MOBOLD" ) )
                    load_old_mob ( fpArea );
                else if ( !str_cmp ( word, "MOBILES" ) )
                    load_mobiles ( fpArea );
                else if ( !str_cmp ( word, "MOBPROGS" ) )
                    load_mobprogs ( fpArea );
                else if ( !str_cmp ( word, "OBJOLD" ) )
                    load_old_obj ( fpArea );
                else if ( !str_cmp ( word, "OBJECTS" ) )
                    load_objects ( fpArea );
                else if ( !str_cmp ( word, "RESETS" ) )
                    load_resets ( fpArea );
                else if ( !str_cmp ( word, "ROOMS" ) )
                    load_rooms ( fpArea );
                else if ( !str_cmp ( word, "SHOPS" ) )
                    load_shops ( fpArea );
#if defined(CONST_SOCIAL)
                else if ( !str_cmp ( word, "SOCIALS" ) )
                    load_socials ( fpArea );
#endif
                else if ( !str_cmp ( word, "SPECIALS" ) )
                    load_specials ( fpArea );
                else
                {
                    bug ( "Boot_db: bad section name.", 0 );
                    exit ( 1 );
                }
            }

            if ( fpArea != stdin )
                file_close ( fpArea );
            fpArea = NULL;
        }
        file_close ( fpList );
    }

    /*
     * Fix up exits.
     * Declare db booting over.
     * Reset all areas once.
     * Load up the songs, notes and ban files.
     */
    {
        fix_exits (  );
        fix_mobprogs (  );
        fBootDb = FALSE;
        convert_objects (  );   /* ROM OLC */
        area_update (  );
        load_boards (  );       /* Load all boards */
        save_notes (  );
        load_bans (  );
        load_songs (  );
        load_disabled (  );
#if defined(CONST_SOCIAL)
        save_social_table (  );
#else
        load_social_table (  );
#endif
    }

    return;
}

/*
 * Snarf an 'area' header line.
 */
void load_area ( FILE * fp )
{
    AREA_DATA *pArea;

    pArea = ( AREA_DATA * ) alloc_perm ( sizeof ( *pArea ) );
    pArea->file_name = fread_string ( fp );

    pArea->area_flags = AREA_LOADING;   /* OLC */
    pArea->security = 9;        /* OLC *//* 9 -- Hugin */
    pArea->builders = str_dup ( "None" );   /* OLC */
    pArea->vnum = top_area;     /* OLC */

    pArea->name = fread_string ( fp );
    pArea->credits = fread_string ( fp );
    pArea->min_vnum = fread_number ( fp );
    pArea->max_vnum = fread_number ( fp );
    pArea->age = 15;
    pArea->nplayer = 0;
    pArea->empty = FALSE;

    if ( !area_first )
        area_first = pArea;
    if ( area_last )
    {
        area_last->next = pArea;
        REMOVE_BIT ( area_last->area_flags, AREA_LOADING ); /* OLC */
    }
    area_last = pArea;
    pArea->next = NULL;
    current_area = pArea;

    top_area++;
    return;
}

/*
 * OLC
 * Use these macros to load any new area formats that you choose to
 * support on your MUD.  See the new_load_area format below for
 * a short example.
 */
#if defined(KEY)
#undef KEY
#endif

#define KEY( literal, field, value )                \
                if ( !str_cmp( word, literal ) )    \
                {                                   \
                    field  = value;                 \
                    fMatch = TRUE;                  \
                    break;                          \
                                }

#define SKEY( string, field )                       \
                if ( !str_cmp( word, string ) )     \
                {                                   \
                    free_string( field );           \
                    field = fread_string( fp );     \
                    fMatch = TRUE;                  \
                    break;                          \
                                }

/* OLC
 * Snarf an 'area' header line.   Check this format.  MUCH better.  Add fields
 * too.
 *
 * #AREAFILE
 * Name   { All } Locke    Newbie School~
 * Repop  A teacher pops in the room and says, 'Repop coming!'~
 * Recall 3001
 * End
 */
void new_load_area ( FILE * fp )
{
    AREA_DATA *pArea;
    const char *word;
    bool fMatch;

    pArea = ( AREA_DATA * ) alloc_perm ( sizeof ( *pArea ) );
    pArea->age = 15;
    pArea->nplayer = 0;
    pArea->file_name = str_dup ( strArea );
    pArea->vnum = top_area;
    pArea->name = str_dup ( "New Area" );
    pArea->builders = str_dup ( "" );
    pArea->security = 9;        /* 9 -- Hugin */
    pArea->min_vnum = 0;
    pArea->max_vnum = 0;
    pArea->area_flags = 0;
/*  pArea->recall       = ROOM_VNUM_TEMPLE;        ROM OLC */

    for ( ;; )
    {
        word = feof ( fp ) ? "End" : fread_word ( fp );
        fMatch = FALSE;

        switch ( UPPER ( word[0] ) )
        {
            case 'N':
                SKEY ( "Name", pArea->name );
                break;
            case 'S':
                KEY ( "Security", pArea->security, fread_number ( fp ) );
                break;
            case 'V':
                if ( !str_cmp ( word, "VNUMs" ) )
                {
                    pArea->min_vnum = fread_number ( fp );
                    pArea->max_vnum = fread_number ( fp );
                }
                break;
            case 'E':
                if ( !str_cmp ( word, "End" ) )
                {
                    fMatch = TRUE;
                    if ( area_first == NULL )
                        area_first = pArea;
                    if ( area_last != NULL )
                        area_last->next = pArea;
                    area_last = pArea;
                    pArea->next = NULL;
                    current_area = pArea;
                    top_area++;

                    return;
                }
                break;
            case 'B':
                SKEY ( "Builders", pArea->builders );
                break;
            case 'C':
                SKEY ( "Credits", pArea->credits );
                break;
        }
    }
}

/*
 * Sets vnum range for area using OLC protection features.
 */
void assign_area_vnum ( VNUM vnum )
{
    if ( area_last->min_vnum == 0 || area_last->max_vnum == 0 )
        area_last->min_vnum = area_last->max_vnum = vnum;
    if ( vnum != URANGE ( area_last->min_vnum, vnum, area_last->max_vnum ) )
    {
        if ( vnum < area_last->min_vnum )
            area_last->min_vnum = vnum;
        else
            area_last->max_vnum = vnum;
    }
    return;
}

/*
 * Snarf a help section.
 */
void load_helps ( FILE * fp, char *fname )
{
    HELP_DATA *pHelp;
    int level;
    char *keyword;

    for ( ;; )
    {
        HELP_AREA *had;

        level = fread_number ( fp );
        keyword = fread_string ( fp );

        if ( keyword[0] == '$' )
            break;

        if ( !had_list )
        {
            had = new_had (  );
            had->filename = str_dup ( fname );
            had->area = current_area;
            if ( current_area )
                current_area->helps = had;
            had_list = had;
        }
        else if ( str_cmp ( fname, had_list->filename ) )
        {
            had = new_had (  );
            had->filename = str_dup ( fname );
            had->area = current_area;
            if ( current_area )
                current_area->helps = had;
            had->next = had_list;
            had_list = had;
        }
        else
            had = had_list;

        pHelp = new_help (  );
        pHelp->level = level;
        pHelp->keyword = keyword;
        pHelp->text = fread_string ( fp );

        if ( !str_cmp ( pHelp->keyword, "greeting" ) )
            help_greeting = pHelp->text;

        if ( help_first == NULL )
            help_first = pHelp;
        if ( help_last != NULL )
            help_last->next = pHelp;

        help_last = pHelp;
        pHelp->next = NULL;

        if ( !had->first )
            had->first = pHelp;
        if ( !had->last )
            had->last = pHelp;

        had->last->next_area = pHelp;
        had->last = pHelp;
        pHelp->next_area = NULL;

        top_help++;
    }

    return;
}

/*
 * Snarf a mob section.  old style 
 */
void load_old_mob ( FILE * fp )
{
    MOB_INDEX_DATA *pMobIndex;
    /* for race updating */
    int race;
    char name[MAX_STRING_LENGTH];

    if ( !area_last )           /* OLC */
    {
        bug ( "Load_mobiles: no #AREA seen yet.", 0 );
        exit ( 1 );
    }

    for ( ;; )
    {
        VNUM vnum;
        char letter;
        int iHash;

        letter = fread_letter ( fp );
        if ( letter != '#' )
        {
            bug ( "Load_mobiles: # not found.", 0 );
            exit ( 1 );
        }

        vnum = fread_number ( fp );
        if ( vnum == 0 )
            break;

        fBootDb = FALSE;
        if ( get_mob_index ( vnum ) != NULL )
        {
            bug ( "Load_mobiles: vnum %d duplicated.", vnum );
            exit ( 1 );
        }
        fBootDb = TRUE;

        pMobIndex = ( MOB_INDEX_DATA * ) alloc_perm ( sizeof ( *pMobIndex ) );
        pMobIndex->vnum = vnum;
        pMobIndex->area = area_last;    /* OLC */
        pMobIndex->new_format = FALSE;
        pMobIndex->player_name = fread_string ( fp );
        pMobIndex->short_descr = fread_string ( fp );
        pMobIndex->long_descr = fread_string ( fp );
        pMobIndex->description = fread_string ( fp );

        pMobIndex->long_descr[0] = UPPER ( pMobIndex->long_descr[0] );
        pMobIndex->description[0] = UPPER ( pMobIndex->description[0] );

        pMobIndex->act = fread_flag ( fp ) | ACT_IS_NPC;
        pMobIndex->affected_by = fread_flag ( fp );
        pMobIndex->pShop = NULL;
        pMobIndex->alignment = fread_number ( fp );
        letter = fread_letter ( fp );
        pMobIndex->level = fread_number ( fp );

        /*
         * The unused stuff is for imps who want to use the old-style
         * stats-in-files method.
         */
        fread_number ( fp );    /* Unused */
        fread_number ( fp );    /* Unused */
        fread_number ( fp );    /* Unused */
        /* 'd'      */ fread_letter ( fp );
        /* Unused */
        fread_number ( fp );    /* Unused */
        /* '+'      */ fread_letter ( fp );
        /* Unused */
        fread_number ( fp );    /* Unused */
        fread_number ( fp );    /* Unused */
        /* 'd'      */ fread_letter ( fp );
        /* Unused */
        fread_number ( fp );    /* Unused */
        /* '+'      */ fread_letter ( fp );
        /* Unused */
        fread_number ( fp );    /* Unused */
        pMobIndex->wealth = fread_number ( fp ) / 20;
        /* xp can't be used! */ fread_number ( fp );
        /* Unused */
        pMobIndex->start_pos = fread_number ( fp ); /* Unused */
        pMobIndex->default_pos = fread_number ( fp );   /* Unused */

        if ( pMobIndex->start_pos < POS_SLEEPING )
            pMobIndex->start_pos = POS_STANDING;
        if ( pMobIndex->default_pos < POS_SLEEPING )
            pMobIndex->default_pos = POS_STANDING;

        /*
         * Back to meaningful values.
         */
        pMobIndex->sex = fread_number ( fp );

        /* compute the race BS */
        one_argument ( pMobIndex->player_name, name );

        if ( name[0] == '\0' || ( race = race_lookup ( name ) ) == 0 )
        {
            /* fill in with blanks */
            pMobIndex->race = race_lookup ( "human" );
            pMobIndex->off_flags =
                OFF_DODGE | OFF_DISARM | OFF_TRIP | ASSIST_VNUM;
            pMobIndex->imm_flags = 0;
            pMobIndex->res_flags = 0;
            pMobIndex->vuln_flags = 0;
            pMobIndex->form =
                FORM_EDIBLE | FORM_SENTIENT | FORM_BIPED | FORM_MAMMAL;
            pMobIndex->parts =
                PART_HEAD | PART_ARMS | PART_LEGS | PART_HEART | PART_BRAINS |
                PART_GUTS;
        }
        else
        {
            pMobIndex->race = race;
            pMobIndex->off_flags =
                OFF_DODGE | OFF_DISARM | OFF_TRIP | ASSIST_RACE |
                race_table[race].off;
            pMobIndex->imm_flags = race_table[race].imm;
            pMobIndex->res_flags = race_table[race].res;
            pMobIndex->vuln_flags = race_table[race].vuln;
            pMobIndex->form = race_table[race].form;
            pMobIndex->parts = race_table[race].parts;
        }

        if ( letter != 'S' )
        {
            bug ( "Load_mobiles: vnum %d non-S.", vnum );
            exit ( 1 );
        }

        convert_mobile ( pMobIndex );   /* ROM OLC */

        iHash = vnum % MAX_KEY_HASH;
        pMobIndex->next = mob_index_hash[iHash];
        mob_index_hash[iHash] = pMobIndex;
        top_mob_index++;
        top_vnum_mob = top_vnum_mob < vnum ? vnum : top_vnum_mob;   /* OLC */
        assign_area_vnum ( vnum );  /* OLC */
        kill_table[URANGE ( 0, pMobIndex->level, MAX_LEVEL - 1 )].number++;
    }

    return;
}

/*
 * Snarf an obj section.  old style 
 */
void load_old_obj ( FILE * fp )
{
    OBJ_INDEX_DATA *pObjIndex;

    if ( !area_last )           /* OLC */
    {
        bug ( "Load_objects: no #AREA seen yet.", 0 );
        exit ( 1 );
    }

    for ( ;; )
    {
        VNUM vnum;
        char letter;
        int iHash;

        letter = fread_letter ( fp );
        if ( letter != '#' )
        {
            bug ( "Load_objects: # not found.", 0 );
            exit ( 1 );
        }

        vnum = fread_number ( fp );
        if ( vnum == 0 )
            break;

        fBootDb = FALSE;
        if ( get_obj_index ( vnum ) != NULL )
        {
            bug ( "Load_objects: vnum %d duplicated.", vnum );
            exit ( 1 );
        }
        fBootDb = TRUE;

        pObjIndex = ( OBJ_INDEX_DATA * ) alloc_perm ( sizeof ( *pObjIndex ) );
        pObjIndex->vnum = vnum;
        pObjIndex->area = area_last;    /* OLC */
        pObjIndex->new_format = FALSE;
        pObjIndex->reset_num = 0;
        pObjIndex->name = fread_string ( fp );
        pObjIndex->short_descr = fread_string ( fp );
        pObjIndex->description = fread_string ( fp );
        /* Action description */ fread_string ( fp );

        pObjIndex->short_descr[0] = LOWER ( pObjIndex->short_descr[0] );
        pObjIndex->description[0] = UPPER ( pObjIndex->description[0] );
        pObjIndex->material = str_dup ( "" );

        pObjIndex->item_type = fread_number ( fp );
        pObjIndex->extra_flags = fread_flag ( fp );
        pObjIndex->wear_flags = fread_flag ( fp );
        pObjIndex->value[0] = fread_number ( fp );
        pObjIndex->value[1] = fread_number ( fp );
        pObjIndex->value[2] = fread_number ( fp );
        pObjIndex->value[3] = fread_number ( fp );
        pObjIndex->value[4] = 0;
        pObjIndex->level = 0;
        pObjIndex->condition = 100;
        pObjIndex->weight = fread_number ( fp );
        pObjIndex->cost = fread_number ( fp );  /* Unused */
        /* Cost per day */ fread_number ( fp );

        if ( pObjIndex->item_type == ITEM_WEAPON )
        {
            if ( is_name ( "two", pObjIndex->name ) ||
                 is_name ( "two-handed", pObjIndex->name ) ||
                 is_name ( "claymore", pObjIndex->name ) )
                SET_BIT ( pObjIndex->value[4], WEAPON_TWO_HANDS );
        }

        for ( ;; )
        {
            char pletter;

            pletter = fread_letter ( fp );

            if ( pletter == 'A' )
            {
                AFFECT_DATA *paf;

                paf = ( AFFECT_DATA * ) alloc_perm ( sizeof ( *paf ) );
                paf->where = TO_OBJECT;
                paf->type = -1;
                paf->level = 20;    /* RT temp fix */
                paf->duration = -1;
                paf->location = fread_number ( fp );
                paf->modifier = fread_number ( fp );
                paf->bitvector = 0;
                paf->next = pObjIndex->affected;
                pObjIndex->affected = paf;
                top_affect++;
            }

            else if ( pletter == 'E' )
            {
                EXTRA_DESCR_DATA *ed;

                ed = ( EXTRA_DESCR_DATA * ) alloc_perm ( sizeof ( *ed ) );
                ed->keyword = fread_string ( fp );
                ed->description = fread_string ( fp );
                ed->next = pObjIndex->extra_descr;
                pObjIndex->extra_descr = ed;
                top_ed++;
            }

            else
            {
                ungetc ( pletter, fp );
                break;
            }
        }

        /* fix armors */
        if ( pObjIndex->item_type == ITEM_ARMOR )
        {
            pObjIndex->value[1] = pObjIndex->value[0];
            pObjIndex->value[2] = pObjIndex->value[1];
        }

        /*
         * Translate spell "slot numbers" to internal "skill numbers."
         */
        switch ( pObjIndex->item_type )
        {
            case ITEM_PILL:
            case ITEM_POTION:
            case ITEM_SCROLL:
                pObjIndex->value[1] = slot_lookup ( pObjIndex->value[1] );
                pObjIndex->value[2] = slot_lookup ( pObjIndex->value[2] );
                pObjIndex->value[3] = slot_lookup ( pObjIndex->value[3] );
                pObjIndex->value[4] = slot_lookup ( pObjIndex->value[4] );
                break;

            case ITEM_STAFF:
            case ITEM_WAND:
                pObjIndex->value[3] = slot_lookup ( pObjIndex->value[3] );
                break;
        }

        iHash = vnum % MAX_KEY_HASH;
        pObjIndex->next = obj_index_hash[iHash];
        obj_index_hash[iHash] = pObjIndex;
        top_obj_index++;
        top_vnum_obj = top_vnum_obj < vnum ? vnum : top_vnum_obj;   /* OLC */
        assign_area_vnum ( vnum );  /* OLC */
    }

    return;
}

/*
 * Adds a reset to a room.  OLC
 * Similar to add_reset in olc.c
 */
void new_reset ( ROOM_INDEX_DATA * pR, RESET_DATA * pReset )
{
    RESET_DATA *pr;

    if ( !pR )
        return;

    pr = pR->reset_last;

    if ( !pr )
    {
        pR->reset_first = pReset;
        pR->reset_last = pReset;
    }
    else
    {
        pR->reset_last->next = pReset;
        pR->reset_last = pReset;
        pR->reset_last->next = NULL;
    }

/*    top_reset++; no estamos asignando memoria!!!! */

    return;
}

/*
 * Snarf a reset section.
 */
void load_resets ( FILE * fp )
{
    RESET_DATA *pReset;
    EXIT_DATA *pexit;
    ROOM_INDEX_DATA *pRoomIndex;
    VNUM rVnum = -1;

    if ( !area_last )
    {
        bug ( "Load_resets: no #AREA seen yet.", 0 );
        exit ( 1 );
    }

    for ( ;; )
    {
        char letter;

        if ( ( letter = fread_letter ( fp ) ) == 'S' )
            break;

        if ( letter == '*' )
        {
            fread_to_eol ( fp );
            continue;
        }

        pReset = new_reset_data (  );
        pReset->command = letter;
        /* if_flag */ fread_number ( fp );
        pReset->arg1 = fread_number ( fp );
        pReset->arg2 = fread_number ( fp );
        pReset->arg3 = ( letter == 'G' ||
                         letter == 'R' ) ? 0 : fread_number ( fp );
        pReset->arg4 = ( letter == 'P' ||
                         letter == 'M' ) ? fread_number ( fp ) : 0;
        fread_to_eol ( fp );

        switch ( pReset->command )
        {
            case 'M':
            case 'O':
                rVnum = pReset->arg3;
                break;

            case 'P':
            case 'G':
            case 'E':
                break;

            case 'D':
                pRoomIndex = get_room_index ( ( rVnum = pReset->arg1 ) );
                if ( pReset->arg2 < 0 || pReset->arg2 >= MAX_DIR ||
                     !pRoomIndex ||
                     !( pexit = pRoomIndex->exit[pReset->arg2] ) ||
                     !IS_SET ( pexit->rs_flags, EX_ISDOOR ) )
                {
                    bugf ( "Load_resets: 'D': exit %d, room %ld not door.",
                           pReset->arg2, pReset->arg1 );
                    exit ( 1 );
                }

                switch ( pReset->arg3 )
                {
                    default:
                        bug ( "Load_resets: 'D': bad 'locks': %d.",
                              pReset->arg3 );
                        break;
                    case 0:
                        break;
                    case 1:
                        SET_BIT ( pexit->rs_flags, EX_CLOSED );
                        SET_BIT ( pexit->exit_info, EX_CLOSED );
                        break;
                    case 2:
                        SET_BIT ( pexit->rs_flags, EX_CLOSED | EX_LOCKED );
                        SET_BIT ( pexit->exit_info, EX_CLOSED | EX_LOCKED );
                        break;
                }
                break;

            case 'R':
                rVnum = pReset->arg1;
                break;
        }

        if ( rVnum == -1 )
        {
            bugf ( "load_resets : rVnum == -1" );
            exit ( 1 );
        }

        if ( pReset->command != 'D' )
            new_reset ( get_room_index ( rVnum ), pReset );
        else
            free_reset_data ( pReset );
    }

    return;
}

/*
 * Snarf a room section.
 */
void load_rooms ( FILE * fp )
{
    ROOM_INDEX_DATA *pRoomIndex;

    if ( area_last == NULL )
    {
        bug ( "Load_resets: no #AREA seen yet.", 0 );
        exit ( 1 );
    }

    for ( ;; )
    {
        VNUM vnum;
        char letter;
        int door;
        int iHash;

        letter = fread_letter ( fp );
        if ( letter != '#' )
        {
            bug ( "Load_rooms: # not found.", 0 );
            exit ( 1 );
        }

        vnum = fread_number ( fp );
        if ( vnum == 0 )
            break;

        fBootDb = FALSE;
        if ( get_room_index ( vnum ) != NULL )
        {
            bug ( "Load_rooms: vnum %d duplicated.", vnum );
            exit ( 1 );
        }
        fBootDb = TRUE;

        pRoomIndex =
            ( ROOM_INDEX_DATA * ) alloc_perm ( sizeof ( *pRoomIndex ) );
        pRoomIndex->owner = str_dup ( "" );
        pRoomIndex->people = NULL;
        pRoomIndex->contents = NULL;
        pRoomIndex->extra_descr = NULL;
        pRoomIndex->area = area_last;
        pRoomIndex->vnum = vnum;
        pRoomIndex->name = fread_string ( fp );
        pRoomIndex->description = fread_string ( fp );
        /* Area number */ fread_number ( fp );
        pRoomIndex->room_flags = fread_flag ( fp );
        /* horrible hack */
        if ( 3000 <= vnum && vnum < 3400 )
            SET_BIT ( pRoomIndex->room_flags, ROOM_LAW );
        pRoomIndex->sector_type = fread_number ( fp );
        pRoomIndex->light = 0;
        for ( door = 0; door <= 5; door++ )
            pRoomIndex->exit[door] = NULL;

        /* defaults */
        pRoomIndex->heal_rate = 100;
        pRoomIndex->mana_rate = 100;

        for ( ;; )
        {
            letter = fread_letter ( fp );

            if ( letter == 'S' )
                break;

            if ( letter == 'H' )    /* healing room */
                pRoomIndex->heal_rate = fread_number ( fp );

            else if ( letter == 'M' )   /* mana room */
                pRoomIndex->mana_rate = fread_number ( fp );

            else if ( letter == 'C' )   /* clan */
            {
                if ( pRoomIndex->clan )
                {
                    bug ( "Load_rooms: duplicate clan fields.", 0 );
                    exit ( 1 );
                }
                pRoomIndex->clan = clan_lookup ( fread_string ( fp ) );
            }

            else if ( letter == 'D' )
            {
                EXIT_DATA *pexit;
                int locks;

                door = fread_number ( fp );
                if ( door < 0 || door > 5 )
                {
                    bug ( "Fread_rooms: vnum %d has bad door number.", vnum );
                    exit ( 1 );
                }

                pexit = ( EXIT_DATA * ) alloc_perm ( sizeof ( *pexit ) );
                pexit->description = fread_string ( fp );
                pexit->keyword = fread_string ( fp );
                pexit->exit_info = 0;
                pexit->rs_flags = 0;    /* OLC */
                locks = fread_number ( fp );
                pexit->key = fread_number ( fp );
                pexit->u1.vnum = fread_number ( fp );
                pexit->orig_door = door;    /* OLC */

                switch ( locks )
                {
                    case 1:
                        pexit->exit_info = EX_ISDOOR;
                        pexit->rs_flags = EX_ISDOOR;
                        break;
                    case 2:
                        pexit->exit_info = EX_ISDOOR | EX_PICKPROOF;
                        pexit->rs_flags = EX_ISDOOR | EX_PICKPROOF;
                        break;
                    case 3:
                        pexit->exit_info = EX_ISDOOR | EX_NOPASS;
                        pexit->rs_flags = EX_ISDOOR | EX_NOPASS;
                        break;
                    case 4:
                        pexit->exit_info =
                            EX_ISDOOR | EX_NOPASS | EX_PICKPROOF;
                        pexit->rs_flags =
                            EX_ISDOOR | EX_NOPASS | EX_PICKPROOF;
                        break;
                }

                pRoomIndex->exit[door] = pexit;
                top_exit++;
            }
            else if ( letter == 'E' )
            {
                EXTRA_DESCR_DATA *ed;

                ed = ( EXTRA_DESCR_DATA * ) alloc_perm ( sizeof ( *ed ) );
                ed->keyword = fread_string ( fp );
                ed->description = fread_string ( fp );
                ed->next = pRoomIndex->extra_descr;
                pRoomIndex->extra_descr = ed;
                top_ed++;
            }

            else if ( letter == 'O' )
            {
                if ( pRoomIndex->owner[0] != '\0' )
                {
                    bug ( "Load_rooms: duplicate owner.", 0 );
                    exit ( 1 );
                }

                pRoomIndex->owner = fread_string ( fp );
            }

            else
            {
                bug ( "Load_rooms: vnum %d has flag not 'DES'.", vnum );
                exit ( 1 );
            }
        }

        iHash = vnum % MAX_KEY_HASH;
        pRoomIndex->next = room_index_hash[iHash];
        room_index_hash[iHash] = pRoomIndex;
        top_room++;
        top_vnum_room = top_vnum_room < vnum ? vnum : top_vnum_room;    /* OLC */
        assign_area_vnum ( vnum );  /* OLC */
    }

    return;
}

/*
 * Snarf a shop section.
 */
void load_shops ( FILE * fp )
{
    SHOP_DATA *pShop;

    for ( ;; )
    {
        MOB_INDEX_DATA *pMobIndex;
        int iTrade;

        pShop = ( SHOP_DATA * ) alloc_perm ( sizeof ( *pShop ) );
        pShop->keeper = fread_number ( fp );
        if ( pShop->keeper == 0 )
            break;
        for ( iTrade = 0; iTrade < MAX_TRADE; iTrade++ )
            pShop->buy_type[iTrade] = fread_number ( fp );
        pShop->profit_buy = fread_number ( fp );
        pShop->profit_sell = fread_number ( fp );
        pShop->open_hour = fread_number ( fp );
        pShop->close_hour = fread_number ( fp );
        fread_to_eol ( fp );
        pMobIndex = get_mob_index ( pShop->keeper );
        pMobIndex->pShop = pShop;

        if ( shop_first == NULL )
            shop_first = pShop;
        if ( shop_last != NULL )
            shop_last->next = pShop;

        shop_last = pShop;
        pShop->next = NULL;
        top_shop++;
    }

    return;
}

/*
 * Snarf spec proc declarations.
 */
void load_specials ( FILE * fp )
{
    for ( ;; )
    {
        MOB_INDEX_DATA *pMobIndex;
        char letter;

        switch ( letter = fread_letter ( fp ) )
        {
            default:
                bug ( "Load_specials: letter '%c' not *MS.", letter );
                exit ( 1 );

            case 'S':
                return;

            case '*':
                break;

            case 'M':
                pMobIndex = get_mob_index ( fread_number ( fp ) );
                pMobIndex->spec_fun = spec_lookup ( fread_word ( fp ) );
                if ( pMobIndex->spec_fun == 0 )
                {
                    bug ( "Load_specials: 'M': vnum %d.", pMobIndex->vnum );
                    exit ( 1 );
                }
                break;
        }

        fread_to_eol ( fp );
    }
}

/*
 * Translate all room exits from virtual to real.
 * Has to be done after all rooms are read in.
 * Check for bad reverse exits.
 */
void fix_exits ( void )
{
    char buf[MAX_STRING_LENGTH];
    ROOM_INDEX_DATA *pRoomIndex;
    ROOM_INDEX_DATA *to_room;
    EXIT_DATA *pexit;
    EXIT_DATA *pexit_rev;
    RESET_DATA *pReset;
    ROOM_INDEX_DATA *iLastRoom, *iLastObj;
    int iHash;
    int door;

    for ( iHash = 0; iHash < MAX_KEY_HASH; iHash++ )
    {
        for ( pRoomIndex = room_index_hash[iHash]; pRoomIndex != NULL;
              pRoomIndex = pRoomIndex->next )
        {
            bool fexit;

            iLastRoom = iLastObj = NULL;

            /* OLC : nuevo chequeo de resets */
            for ( pReset = pRoomIndex->reset_first; pReset;
                  pReset = pReset->next )
            {
                switch ( pReset->command )
                {
                    default:
                        bugf ( "fix_exits : cuarto %ld con reset cmd %c",
                               pRoomIndex->vnum, pReset->command );
                        exit ( 1 );
                        break;

                    case 'M':
                        get_mob_index ( pReset->arg1 );
                        iLastRoom = get_room_index ( pReset->arg3 );
                        break;

                    case 'O':
                        get_obj_index ( pReset->arg1 );
                        iLastObj = get_room_index ( pReset->arg3 );
                        break;

                    case 'P':
                        get_obj_index ( pReset->arg1 );
                        if ( iLastObj == NULL )
                        {
                            bugf ( "fix_exits : reset en cuarto %ld con iLastObj NULL", pRoomIndex->vnum );
                            exit ( 1 );
                        }
                        break;

                    case 'G':
                    case 'E':
                        get_obj_index ( pReset->arg1 );
                        if ( iLastRoom == NULL )
                        {
                            bugf ( "fix_exits : reset en cuarto %ld con iLastRoom NULL", pRoomIndex->vnum );
                            exit ( 1 );
                        }
                        iLastObj = iLastRoom;
                        break;

                    case 'D':
                        bugf ( "???" );
                        break;

                    case 'R':
                        get_room_index ( pReset->arg1 );
                        if ( pReset->arg2 < 0 || pReset->arg2 > MAX_DIR )
                        {
                            bugf ( "fix_exits : reset en cuarto %ld con arg2 %d >= MAX_DIR", pRoomIndex->vnum, pReset->arg2 );
                            exit ( 1 );
                        }
                        break;
                }               /* switch */
            }                   /* for */

            fexit = FALSE;
            for ( door = 0; door <= 5; door++ )
            {
                if ( ( pexit = pRoomIndex->exit[door] ) != NULL )
                {
                    if ( pexit->u1.vnum <= 0 ||
                         get_room_index ( pexit->u1.vnum ) == NULL )
                        pexit->u1.to_room = NULL;
                    else
                    {
                        fexit = TRUE;
                        pexit->u1.to_room = get_room_index ( pexit->u1.vnum );
                    }
                }
            }
            if ( !fexit )
                SET_BIT ( pRoomIndex->room_flags, ROOM_NO_MOB );
        }
    }

    for ( iHash = 0; iHash < MAX_KEY_HASH; iHash++ )
    {
        for ( pRoomIndex = room_index_hash[iHash]; pRoomIndex != NULL;
              pRoomIndex = pRoomIndex->next )
        {
            for ( door = 0; door <= 5; door++ )
            {
                if ( ( pexit = pRoomIndex->exit[door] ) != NULL &&
                     ( to_room = pexit->u1.to_room ) != NULL &&
                     ( pexit_rev = to_room->exit[rev_dir[door]] ) != NULL &&
                     pexit_rev->u1.to_room != pRoomIndex &&
                     ( pRoomIndex->vnum < 1200 || pRoomIndex->vnum > 1299 ) )
                {
                    sprintf ( buf, "Fix_exits: %ld:%d -> %ld:%d -> %ld.",
                              pRoomIndex->vnum, door, to_room->vnum,
                              rev_dir[door],
                              ( pexit_rev->u1.to_room ==
                                NULL ) ? 0 : pexit_rev->u1.to_room->vnum );
                    bug ( buf, 0 );
                }
            }
        }
    }

    return;
}

/*
 * Load mobprogs section
 */
void load_mobprogs ( FILE * fp )
{
    MPROG_CODE *pMprog;

    if ( area_last == NULL )
    {
        bug ( "Load_mobprogs: no #AREA seen yet.", 0 );
        exit ( 1 );
    }

    for ( ;; )
    {
        VNUM vnum;
        char letter;

        letter = fread_letter ( fp );
        if ( letter != '#' )
        {
            bug ( "Load_mobprogs: # not found.", 0 );
            exit ( 1 );
        }

        vnum = fread_number ( fp );
        if ( vnum == 0 )
            break;

        fBootDb = FALSE;
        if ( get_mprog_index ( vnum ) != NULL )
        {
            bug ( "Load_mobprogs: vnum %d duplicated.", vnum );
            exit ( 1 );
        }
        fBootDb = TRUE;

        pMprog = ( MPROG_CODE * ) alloc_perm ( sizeof ( *pMprog ) );
        pMprog->vnum = vnum;
        pMprog->code = fread_string ( fp );
        if ( mprog_list == NULL )
            mprog_list = pMprog;
        else
        {
            pMprog->next = mprog_list;
            mprog_list = pMprog;
        }
        top_mprog_index++;
    }
    return;
}

/*
 *  Translate mobprog vnums pointers to real code
 */
void fix_mobprogs ( void )
{
    MOB_INDEX_DATA *pMobIndex;
    MPROG_LIST *list;
    MPROG_CODE *prog;
    int iHash;

    for ( iHash = 0; iHash < MAX_KEY_HASH; iHash++ )
    {
        for ( pMobIndex = mob_index_hash[iHash]; pMobIndex != NULL;
              pMobIndex = pMobIndex->next )
        {
            for ( list = pMobIndex->mprogs; list != NULL; list = list->next )
            {
                if ( ( prog = get_mprog_index ( list->vnum ) ) != NULL )
                    list->code = prog->code;
                else
                {
                    bug ( "Fix_mobprogs: code vnum %d not found.",
                          list->vnum );
                    exit ( 1 );
                }
            }
        }
    }
}

/*
 * Repopulate areas periodically.
 */
void area_update ( void )
{
    AREA_DATA *pArea;
    char buf[MAX_STRING_LENGTH];

    for ( pArea = area_first; pArea != NULL; pArea = pArea->next )
    {

        if ( ++pArea->age < 3 )
            continue;

        /*
         * Check age and reset.
         * Note: Mud School resets every 3 minutes (not 15).
         */
        if ( ( !pArea->empty && ( pArea->nplayer == 0 || pArea->age >= 15 ) )
             || pArea->age >= 31 )
        {
            ROOM_INDEX_DATA *pRoomIndex;

            reset_area ( pArea );
            sprintf ( buf, "%s has just been reset.", pArea->name );
            wiznet ( buf, NULL, NULL, WIZ_RESETS, 0, 0 );

            pArea->age = number_range ( 0, 3 );
            pRoomIndex = get_room_index ( ROOM_VNUM_SCHOOL );
            if ( pRoomIndex != NULL && pArea == pRoomIndex->area )
                pArea->age = 15 - 2;
            else if ( pArea->nplayer == 0 )
                pArea->empty = TRUE;
        }
    }

    return;
}

/* OLC
 * Reset one room.  Called by reset_area and olc.
 */
void reset_room ( ROOM_INDEX_DATA * pRoom )
{
    RESET_DATA *pReset;
    CHAR_DATA *pMob;
    CHAR_DATA *mob;
    OBJ_DATA *pObj;
    CHAR_DATA *LastMob = NULL;
    OBJ_DATA *LastObj = NULL;
    int iExit;
    int level = 0;
    bool last;

    if ( !pRoom )
        return;

    pMob = NULL;
    last = FALSE;

    for ( iExit = 0; iExit < MAX_DIR; iExit++ )
    {
        EXIT_DATA *pExit;
        if ( ( pExit = pRoom->exit[iExit] )
             /*  && !IS_SET( pExit->exit_info, EX_BASHED )   ROM OLC */  )
        {
            pExit->exit_info = pExit->rs_flags;
            if ( ( pExit->u1.to_room != NULL ) &&
                 ( ( pExit = pExit->u1.to_room->exit[rev_dir[iExit]] ) ) )
            {
                /* nail the other side */
                pExit->exit_info = pExit->rs_flags;
            }
        }
    }

    for ( pReset = pRoom->reset_first; pReset != NULL; pReset = pReset->next )
    {
        MOB_INDEX_DATA *pMobIndex;
        OBJ_INDEX_DATA *pObjIndex;
        OBJ_INDEX_DATA *pObjToIndex;
        ROOM_INDEX_DATA *pRoomIndex;
        char buf[MAX_STRING_LENGTH];
        int count, limit = 0;

        switch ( pReset->command )
        {
            default:
                bug ( "Reset_room: bad command %c.", pReset->command );
                break;

            case 'M':
                if ( !( pMobIndex = get_mob_index ( pReset->arg1 ) ) )
                {
                    bug ( "Reset_room: 'M': bad vnum %d.", pReset->arg1 );
                    continue;
                }

                if ( ( pRoomIndex =
                       get_room_index ( pReset->arg3 ) ) == NULL )
                {
                    bug ( "Reset_area: 'R': bad vnum %d.", pReset->arg3 );
                    continue;
                }
                if ( pMobIndex->count >= pReset->arg2 )
                {
                    last = FALSE;
                    break;
                }
/* */
                count = 0;
                for ( mob = pRoomIndex->people; mob != NULL;
                      mob = mob->next_in_room )
                    if ( mob->pIndexData == pMobIndex )
                    {
                        count++;
                        if ( count >= pReset->arg4 )
                        {
                            last = FALSE;
                            break;
                        }
                    }

                if ( count >= pReset->arg4 )
                    break;

/* */

                pMob = create_mobile ( pMobIndex );

                /*
                 * Some more hard coding.
                 */
                if ( room_is_dark ( pRoom ) )
                    SET_BIT ( pMob->affected_by, AFF_INFRARED );

                /*
                 * Pet shop mobiles get ACT_PET set.
                 */
                {
                    ROOM_INDEX_DATA *pRoomIndexPrev;

                    pRoomIndexPrev = get_room_index ( pRoom->vnum - 1 );
                    if ( pRoomIndexPrev &&
                         IS_SET ( pRoomIndexPrev->room_flags,
                                  ROOM_PET_SHOP ) )
                        SET_BIT ( pMob->act, ACT_PET );
                }

                char_to_room ( pMob, pRoom );

                LastMob = pMob;
                level = URANGE ( 0, pMob->level - 2, LEVEL_HERO - 1 );  /* -1 ROM */
                last = TRUE;
                break;

            case 'O':
                if ( !( pObjIndex = get_obj_index ( pReset->arg1 ) ) )
                {
                    bug ( "Reset_room: 'O' 1 : bad vnum %d", pReset->arg1 );
                    sprintf ( buf, "%ld %d %ld %d", pReset->arg1,
                              pReset->arg2, pReset->arg3, pReset->arg4 );
                    bug ( buf, 1 );
                    continue;
                }

                if ( !( pRoomIndex = get_room_index ( pReset->arg3 ) ) )
                {
                    bug ( "Reset_room: 'O' 2 : bad vnum %d.", pReset->arg3 );
                    sprintf ( buf, "%ld %d %ld %d", pReset->arg1,
                              pReset->arg2, pReset->arg3, pReset->arg4 );
                    bug ( buf, 1 );
                    continue;
                }

                if ( pRoom->area->nplayer > 0 ||
                     count_obj_list ( pObjIndex, pRoom->contents ) > 0 )
                {
                    last = FALSE;
                    break;
                }

                pObj = create_object ( pObjIndex,   /* UMIN - ROM OLC */
                                       UMIN ( number_fuzzy ( level ),
                                              LEVEL_HERO - 1 ) );
                pObj->cost = 0;
                obj_to_room ( pObj, pRoom );
                last = TRUE;
                break;

            case 'P':
                if ( !( pObjIndex = get_obj_index ( pReset->arg1 ) ) )
                {
                    bug ( "Reset_room: 'P': bad vnum %d.", pReset->arg1 );
                    continue;
                }

                if ( !( pObjToIndex = get_obj_index ( pReset->arg3 ) ) )
                {
                    bug ( "Reset_room: 'P': bad vnum %d.", pReset->arg3 );
                    continue;
                }

                if ( pReset->arg2 > 50 )    /* old format */
                    limit = 6;
                else if ( pReset->arg2 == -1 )  /* no limit */
                    limit = 999;
                else
                    limit = pReset->arg2;

                if ( pRoom->area->nplayer > 0 ||
                     ( LastObj = get_obj_type ( pObjToIndex ) ) == NULL ||
                     ( LastObj->in_room == NULL && !last ) ||
                     ( pObjIndex->count >=
                       limit /* && number_range(0,4) != 0 */  )
                     || ( count =
                          count_obj_list ( pObjIndex,
                                           LastObj->contains ) ) >
                     pReset->arg4 )
                {
                    last = FALSE;
                    break;
                }
                /* lastObj->level  -  ROM */

                while ( count < pReset->arg4 )
                {
                    pObj =
                        create_object ( pObjIndex,
                                        number_fuzzy ( LastObj->level ) );
                    obj_to_obj ( pObj, LastObj );
                    count++;
                    if ( pObjIndex->count >= limit )
                        break;
                }

                /* fix object lock state! */
                LastObj->value[1] = LastObj->pIndexData->value[1];
                last = TRUE;
                break;

            case 'G':
            case 'E':
                if ( !( pObjIndex = get_obj_index ( pReset->arg1 ) ) )
                {
                    bug ( "Reset_room: 'E' or 'G': bad vnum %d.",
                          pReset->arg1 );
                    continue;
                }

                if ( !last )
                    break;

                if ( !LastMob )
                {
                    bug ( "Reset_room: 'E' or 'G': null mob for vnum %d.",
                          pReset->arg1 );
                    last = FALSE;
                    break;
                }

                if ( LastMob->pIndexData->pShop )   /* Shop-keeper? */
                {
                    int olevel = 0, i, j;

                    if ( !pObjIndex->new_format )
                        switch ( pObjIndex->item_type )
                        {
                            default:
                                olevel = 0;
                                break;
                            case ITEM_PILL:
                            case ITEM_POTION:
                            case ITEM_SCROLL:
                                olevel = ANGEL;
                                for ( i = 1; i < 5; i++ )
                                {
                                    if ( pObjIndex->value[i] > 0 )
                                    {
                                        for ( j = 0; j < MAX_CLASS; j++ )
                                        {
                                            olevel =
                                                UMIN ( olevel,
                                                       skill_table[pObjIndex->
                                                                   value[i]].
                                                       skill_level[j] );
                                        }
                                    }
                                }

                                olevel = UMAX ( 0, ( olevel * 3 / 4 ) - 2 );
                                break;

                            case ITEM_WAND:
                                olevel = number_range ( 10, 20 );
                                break;
                            case ITEM_STAFF:
                                olevel = number_range ( 15, 25 );
                                break;
                            case ITEM_ARMOR:
                                olevel = number_range ( 5, 15 );
                                break;
                                /* ROM patch weapon, treasure */
                            case ITEM_WEAPON:
                                olevel = number_range ( 5, 15 );
                                break;
                            case ITEM_TREASURE:
                                olevel = number_range ( 10, 20 );
                                break;

                        }

                    pObj = create_object ( pObjIndex, olevel );
                    SET_BIT ( pObj->extra_flags, ITEM_INVENTORY );  /* ROM OLC */

                }
                else            /* ROM OLC else version */
                {
                    int plimit;
                    if ( pReset->arg2 > 50 )    /* old format */
                        plimit = 6;
                    else if ( pReset->arg2 == -1 || pReset->arg2 == 0 ) /* no limit */
                        plimit = 999;
                    else
                        plimit = pReset->arg2;

                    if ( pObjIndex->count < plimit ||
                         number_range ( 0, 4 ) == 0 )
                    {
                        pObj =
                            create_object ( pObjIndex,
                                            UMIN ( number_fuzzy ( level ),
                                                   LEVEL_HERO - 1 ) );
                        /* error message if it is too high 
                           if (pObj->level > LastMob->level + 3
                           ||  (pObj->item_type == ITEM_WEAPON 
                           &&   pReset->command == 'E' 
                           &&   pObj->level < LastMob->level -5 && pObj->level < 45))
                           fprintf(stderr,
                           "Err: obj %s (%d) -- %d, mob %s (%d) -- %d\n",
                           pObj->short_descr,pObj->pIndexData->vnum,pObj->level,
                           LastMob->short_descr,LastMob->pIndexData->vnum,LastMob->level);
                         */
                    }
                    else
                        break;
                }

                obj_to_char ( pObj, LastMob );
                if ( pReset->command == 'E' )
                    equip_char ( LastMob, pObj, pReset->arg3 );
                last = TRUE;
                break;

            case 'D':
                break;

            case 'R':
                if ( !( pRoomIndex = get_room_index ( pReset->arg1 ) ) )
                {
                    bug ( "Reset_room: 'R': bad vnum %d.", pReset->arg1 );
                    continue;
                }

                {
                    EXIT_DATA *pExit;
                    int d0;
                    int d1;

                    for ( d0 = 0; d0 < pReset->arg2 - 1; d0++ )
                    {
                        d1 = number_range ( d0, pReset->arg2 - 1 );
                        pExit = pRoomIndex->exit[d0];
                        pRoomIndex->exit[d0] = pRoomIndex->exit[d1];
                        pRoomIndex->exit[d1] = pExit;
                    }
                }
                break;
        }
    }

    return;
}

/* OLC
 * Reset one area.
 */
void reset_area ( AREA_DATA * pArea )
{
    ROOM_INDEX_DATA *pRoom;
    VNUM vnum;

    for ( vnum = pArea->min_vnum; vnum <= pArea->max_vnum; vnum++ )
    {
        if ( ( pRoom = get_room_index ( vnum ) ) )
            reset_room ( pRoom );
    }

    return;
}

/*
 * Create an instance of a mobile.
 */
CHAR_DATA *create_mobile ( MOB_INDEX_DATA * pMobIndex )
{
    CHAR_DATA *mob;
    int i;
    AFFECT_DATA af;

    mobile_count++;

    if ( pMobIndex == NULL )
    {
        bug ( "Create_mobile: NULL pMobIndex.", 0 );
        exit ( 1 );
    }

    mob = new_char (  );

    mob->pIndexData = pMobIndex;

    mob->name = str_dup ( pMobIndex->player_name ); /* OLC */
    mob->short_descr = str_dup ( pMobIndex->short_descr );  /* OLC */
    mob->long_descr = str_dup ( pMobIndex->long_descr );    /* OLC */
    mob->description = str_dup ( pMobIndex->description );  /* OLC */
    mob->id = get_mob_id (  );
    mob->spec_fun = pMobIndex->spec_fun;
    mob->prompt = NULL;
    mob->mprog_target = NULL;

    if ( pMobIndex->wealth == 0 )
    {
        mob->silver = 0;
        mob->gold = 0;
    }
    else
    {
        long wealth;

        wealth =
            number_range ( pMobIndex->wealth / 2, 3 * pMobIndex->wealth / 2 );
        mob->gold = number_range ( wealth / 200, wealth / 100 );
        mob->silver = wealth - ( mob->gold * 100 );
    }

    if ( pMobIndex->new_format )
        /* load in new style */
    {
        /* read from prototype */
        mob->group = pMobIndex->group;
        mob->act = pMobIndex->act;
        mob->comm = COMM_NOCHANNELS | COMM_NOSHOUT | COMM_NOTELL;
        mob->affected_by = pMobIndex->affected_by;
        mob->alignment = pMobIndex->alignment;
        mob->level = pMobIndex->level;
        mob->hitroll = pMobIndex->hitroll;
        mob->damroll = pMobIndex->damage[DICE_BONUS];
        mob->max_hit =
            dice ( pMobIndex->hit[DICE_NUMBER],
                   pMobIndex->hit[DICE_TYPE] ) + pMobIndex->hit[DICE_BONUS];
        mob->hit = mob->max_hit;
        mob->max_mana =
            dice ( pMobIndex->mana[DICE_NUMBER],
                   pMobIndex->mana[DICE_TYPE] ) + pMobIndex->mana[DICE_BONUS];
        mob->mana = mob->max_mana;
        mob->damage[DICE_NUMBER] = pMobIndex->damage[DICE_NUMBER];
        mob->damage[DICE_TYPE] = pMobIndex->damage[DICE_TYPE];
        mob->dam_type = pMobIndex->dam_type;
        if ( mob->dam_type == 0 )
            switch ( number_range ( 1, 3 ) )
            {
                case ( 1 ):
                    mob->dam_type = 3;
                    break;      /* slash */
                case ( 2 ):
                    mob->dam_type = 7;
                    break;      /* pound */
                case ( 3 ):
                    mob->dam_type = 11;
                    break;      /* pierce */
            }
        for ( i = 0; i < 4; i++ )
            mob->armor[i] = pMobIndex->ac[i];
        mob->off_flags = pMobIndex->off_flags;
        mob->imm_flags = pMobIndex->imm_flags;
        mob->res_flags = pMobIndex->res_flags;
        mob->vuln_flags = pMobIndex->vuln_flags;
        mob->start_pos = pMobIndex->start_pos;
        mob->default_pos = pMobIndex->default_pos;
        mob->sex = pMobIndex->sex;
        if ( mob->sex == 3 )    /* random sex */
            mob->sex = number_range ( 1, 2 );
        mob->race = pMobIndex->race;
        mob->form = pMobIndex->form;
        mob->parts = pMobIndex->parts;
        mob->size = pMobIndex->size;
        mob->material = str_dup ( pMobIndex->material );

        /* computed on the spot */

        for ( i = 0; i < MAX_STATS; i++ )
            mob->perm_stat[i] = UMIN ( 25, 11 + mob->level / 4 );

        if ( IS_SET ( mob->act, ACT_WARRIOR ) )
        {
            mob->perm_stat[STAT_STR] += 3;
            mob->perm_stat[STAT_INT] -= 1;
            mob->perm_stat[STAT_CON] += 2;
        }

        if ( IS_SET ( mob->act, ACT_THIEF ) )
        {
            mob->perm_stat[STAT_DEX] += 3;
            mob->perm_stat[STAT_INT] += 1;
            mob->perm_stat[STAT_WIS] -= 1;
        }

        if ( IS_SET ( mob->act, ACT_CLERIC ) )
        {
            mob->perm_stat[STAT_WIS] += 3;
            mob->perm_stat[STAT_DEX] -= 1;
            mob->perm_stat[STAT_STR] += 1;
        }

        if ( IS_SET ( mob->act, ACT_MAGE ) )
        {
            mob->perm_stat[STAT_INT] += 3;
            mob->perm_stat[STAT_STR] -= 1;
            mob->perm_stat[STAT_DEX] += 1;
        }

        if ( IS_SET ( mob->off_flags, OFF_FAST ) )
            mob->perm_stat[STAT_DEX] += 2;

        mob->perm_stat[STAT_STR] += mob->size - SIZE_MEDIUM;
        mob->perm_stat[STAT_CON] += ( mob->size - SIZE_MEDIUM ) / 2;

        /* let's get some spell action */
        if ( IS_AFFECTED ( mob, AFF_SANCTUARY ) )
        {
            af.where = TO_AFFECTS;
            af.type = skill_lookup ( "sanctuary" );
            af.level = mob->level;
            af.duration = -1;
            af.location = APPLY_NONE;
            af.modifier = 0;
            af.bitvector = AFF_SANCTUARY;
            affect_to_char ( mob, &af );
        }

        if ( IS_AFFECTED ( mob, AFF_HASTE ) )
        {
            af.where = TO_AFFECTS;
            af.type = skill_lookup ( "haste" );
            af.level = mob->level;
            af.duration = -1;
            af.location = APPLY_DEX;
            af.modifier =
                1 + ( mob->level >= 18 ) + ( mob->level >=
                                             25 ) + ( mob->level >= 32 );
            af.bitvector = AFF_HASTE;
            affect_to_char ( mob, &af );
        }

        if ( IS_AFFECTED ( mob, AFF_PROTECT_EVIL ) )
        {
            af.where = TO_AFFECTS;
            af.type = skill_lookup ( "protection evil" );
            af.level = mob->level;
            af.duration = -1;
            af.location = APPLY_SAVES;
            af.modifier = -1;
            af.bitvector = AFF_PROTECT_EVIL;
            affect_to_char ( mob, &af );
        }

        if ( IS_AFFECTED ( mob, AFF_PROTECT_GOOD ) )
        {
            af.where = TO_AFFECTS;
            af.type = skill_lookup ( "protection good" );
            af.level = mob->level;
            af.duration = -1;
            af.location = APPLY_SAVES;
            af.modifier = -1;
            af.bitvector = AFF_PROTECT_GOOD;
            affect_to_char ( mob, &af );
        }
    }
    else                        /* read in old format and convert */
    {
        mob->act = pMobIndex->act;
        mob->affected_by = pMobIndex->affected_by;
        mob->alignment = pMobIndex->alignment;
        mob->level = pMobIndex->level;
        mob->hitroll = pMobIndex->hitroll;
        mob->damroll = 0;
        mob->max_hit =
            mob->level * 8 + number_range ( mob->level * mob->level / 4,
                                            mob->level * mob->level );
        mob->max_hit = mob->max_hit * 9 / 10;
        mob->hit = mob->max_hit;
        mob->max_mana = 100 + dice ( mob->level, 10 );
        mob->mana = mob->max_mana;
        switch ( number_range ( 1, 3 ) )
        {
            case ( 1 ):
                mob->dam_type = 3;
                break;          /* slash */
            case ( 2 ):
                mob->dam_type = 7;
                break;          /* pound */
            case ( 3 ):
                mob->dam_type = 11;
                break;          /* pierce */
        }
        for ( i = 0; i < 3; i++ )
            mob->armor[i] = interpolate ( mob->level, 100, -100 );
        mob->armor[3] = interpolate ( mob->level, 100, 0 );
        mob->race = pMobIndex->race;
        mob->off_flags = pMobIndex->off_flags;
        mob->imm_flags = pMobIndex->imm_flags;
        mob->res_flags = pMobIndex->res_flags;
        mob->vuln_flags = pMobIndex->vuln_flags;
        mob->start_pos = pMobIndex->start_pos;
        mob->default_pos = pMobIndex->default_pos;
        mob->sex = pMobIndex->sex;
        mob->form = pMobIndex->form;
        mob->parts = pMobIndex->parts;
        mob->size = SIZE_MEDIUM;
        mob->material = "";

        for ( i = 0; i < MAX_STATS; i++ )
            mob->perm_stat[i] = 11 + mob->level / 4;
    }

    mob->position = mob->start_pos;

    /* link the mob to the world list */
    mob->next = char_list;
    char_list = mob;
    pMobIndex->count++;
    return mob;
}

/* duplicate a mobile exactly -- except inventory */
void clone_mobile ( CHAR_DATA * parent, CHAR_DATA * clone )
{
    int i;
    AFFECT_DATA *paf;

    if ( parent == NULL || clone == NULL || !IS_NPC ( parent ) )
        return;

    /* start fixing values */
    clone->name = str_dup ( parent->name );
    clone->version = parent->version;
    clone->short_descr = str_dup ( parent->short_descr );
    clone->long_descr = str_dup ( parent->long_descr );
    clone->description = str_dup ( parent->description );
    clone->group = parent->group;
    clone->sex = parent->sex;
    clone->Class = parent->Class;
    clone->race = parent->race;
    clone->level = parent->level;
    clone->trust = 0;
    clone->timer = parent->timer;
    clone->wait = parent->wait;
    clone->hit = parent->hit;
    clone->max_hit = parent->max_hit;
    clone->mana = parent->mana;
    clone->max_mana = parent->max_mana;
    clone->move = parent->move;
    clone->max_move = parent->max_move;
    clone->gold = parent->gold;
    clone->silver = parent->silver;
    clone->exp = parent->exp;
    clone->act = parent->act;
    clone->comm = parent->comm;
    clone->imm_flags = parent->imm_flags;
    clone->res_flags = parent->res_flags;
    clone->vuln_flags = parent->vuln_flags;
    clone->invis_level = parent->invis_level;
    clone->affected_by = parent->affected_by;
    clone->position = parent->position;
    clone->practice = parent->practice;
    clone->train = parent->train;
    clone->saving_throw = parent->saving_throw;
    clone->alignment = parent->alignment;
    clone->hitroll = parent->hitroll;
    clone->damroll = parent->damroll;
    clone->wimpy = parent->wimpy;
    clone->form = parent->form;
    clone->parts = parent->parts;
    clone->size = parent->size;
    clone->material = str_dup ( parent->material );
    clone->off_flags = parent->off_flags;
    clone->dam_type = parent->dam_type;
    clone->start_pos = parent->start_pos;
    clone->default_pos = parent->default_pos;
    clone->spec_fun = parent->spec_fun;

    for ( i = 0; i < 4; i++ )
        clone->armor[i] = parent->armor[i];

    for ( i = 0; i < MAX_STATS; i++ )
    {
        clone->perm_stat[i] = parent->perm_stat[i];
        clone->mod_stat[i] = parent->mod_stat[i];
    }

    for ( i = 0; i < 3; i++ )
        clone->damage[i] = parent->damage[i];

    /* now add the affects */
    for ( paf = parent->affected; paf != NULL; paf = paf->next )
        affect_to_char ( clone, paf );

}

/*
 * Create an instance of an object.
 */
OBJ_DATA *create_object ( OBJ_INDEX_DATA * pObjIndex, int level )
{
    AFFECT_DATA *paf;
    OBJ_DATA *obj;
    int i;

    if ( pObjIndex == NULL )
    {
        bug ( "Create_object: NULL pObjIndex.", 0 );
        exit ( 1 );
    }

    obj = new_obj (  );

    obj->pIndexData = pObjIndex;
    obj->in_room = NULL;
    obj->enchanted = FALSE;

    if ( pObjIndex->new_format )
        obj->level = pObjIndex->level;
    else
        obj->level = UMAX ( 0, level );
    obj->wear_loc = -1;

    obj->name = str_dup ( pObjIndex->name );    /* OLC */
    obj->short_descr = str_dup ( pObjIndex->short_descr );  /* OLC */
    obj->description = str_dup ( pObjIndex->description );  /* OLC */
    obj->material = str_dup ( pObjIndex->material );
    obj->item_type = pObjIndex->item_type;
    obj->extra_flags = pObjIndex->extra_flags;
    obj->wear_flags = pObjIndex->wear_flags;
    obj->value[0] = pObjIndex->value[0];
    obj->value[1] = pObjIndex->value[1];
    obj->value[2] = pObjIndex->value[2];
    obj->value[3] = pObjIndex->value[3];
    obj->value[4] = pObjIndex->value[4];
    obj->weight = pObjIndex->weight;

    if ( level == -1 || pObjIndex->new_format )
        obj->cost = pObjIndex->cost;
    else
        obj->cost =
            number_fuzzy ( 10 ) * number_fuzzy ( level ) *
            number_fuzzy ( level );

    /*
     * Mess with object properties.
     */
    switch ( obj->item_type )
    {
        default:
            bug ( "Read_object: vnum %d bad type.", pObjIndex->vnum );
            break;

        case ITEM_LIGHT:
            if ( obj->value[2] == 999 )
                obj->value[2] = -1;
            break;

        case ITEM_FURNITURE:
        case ITEM_TRASH:
        case ITEM_CONTAINER:
        case ITEM_DRINK_CON:
        case ITEM_KEY:
        case ITEM_FOOD:
        case ITEM_BOAT:
        case ITEM_CORPSE_NPC:
        case ITEM_CORPSE_PC:
        case ITEM_FOUNTAIN:
        case ITEM_MAP:
        case ITEM_CLOTHING:
        case ITEM_PORTAL:
            if ( !pObjIndex->new_format )
                obj->cost /= 5;
            break;

        case ITEM_TREASURE:
        case ITEM_WARP_STONE:
        case ITEM_ROOM_KEY:
        case ITEM_GEM:
        case ITEM_JEWELRY:
            break;

        case ITEM_JUKEBOX:
            for ( i = 0; i < 5; i++ )
                obj->value[i] = -1;
            break;

        case ITEM_SCROLL:
            if ( level != -1 && !pObjIndex->new_format )
                obj->value[0] = number_fuzzy ( obj->value[0] );
            break;

        case ITEM_WAND:
        case ITEM_STAFF:
            if ( level != -1 && !pObjIndex->new_format )
            {
                obj->value[0] = number_fuzzy ( obj->value[0] );
                obj->value[1] = number_fuzzy ( obj->value[1] );
                obj->value[2] = obj->value[1];
            }
            if ( !pObjIndex->new_format )
                obj->cost *= 2;
            break;

        case ITEM_WEAPON:
            if ( level != -1 && !pObjIndex->new_format )
            {
                obj->value[1] =
                    number_fuzzy ( number_fuzzy ( 1 * level / 4 + 2 ) );
                obj->value[2] =
                    number_fuzzy ( number_fuzzy ( 3 * level / 4 + 6 ) );
            }
            break;

        case ITEM_ARMOR:
            if ( level != -1 && !pObjIndex->new_format )
            {
                obj->value[0] = number_fuzzy ( level / 5 + 3 );
                obj->value[1] = number_fuzzy ( level / 5 + 3 );
                obj->value[2] = number_fuzzy ( level / 5 + 3 );
            }
            break;

        case ITEM_POTION:
        case ITEM_PILL:
            if ( level != -1 && !pObjIndex->new_format )
                obj->value[0] =
                    number_fuzzy ( number_fuzzy ( obj->value[0] ) );
            break;

        case ITEM_MONEY:
            if ( !pObjIndex->new_format )
                obj->value[0] = obj->cost;
            break;
    }

    for ( paf = pObjIndex->affected; paf != NULL; paf = paf->next )
        if ( paf->location == APPLY_SPELL_AFFECT )
            affect_to_obj ( obj, paf );

    obj->next = object_list;
    object_list = obj;
    pObjIndex->count++;

    return obj;
}

/* duplicate an object exactly -- except contents */
void clone_object ( OBJ_DATA * parent, OBJ_DATA * clone )
{
    int i;
    AFFECT_DATA *paf;
    EXTRA_DESCR_DATA *ed, *ed_new;

    if ( parent == NULL || clone == NULL )
        return;

    /* start fixing the object */
    clone->name = str_dup ( parent->name );
    clone->short_descr = str_dup ( parent->short_descr );
    clone->description = str_dup ( parent->description );
    clone->item_type = parent->item_type;
    clone->extra_flags = parent->extra_flags;
    clone->wear_flags = parent->wear_flags;
    clone->weight = parent->weight;
    clone->cost = parent->cost;
    clone->level = parent->level;
    clone->condition = parent->condition;
    clone->material = str_dup ( parent->material );
    clone->timer = parent->timer;

    for ( i = 0; i < 5; i++ )
        clone->value[i] = parent->value[i];

    /* affects */
    clone->enchanted = parent->enchanted;

    for ( paf = parent->affected; paf != NULL; paf = paf->next )
        affect_to_obj ( clone, paf );

    /* extended desc */
    for ( ed = parent->extra_descr; ed != NULL; ed = ed->next )
    {
        ed_new = new_extra_descr (  );
        ed_new->keyword = str_dup ( ed->keyword );
        ed_new->description = str_dup ( ed->description );
        ed_new->next = clone->extra_descr;
        clone->extra_descr = ed_new;
    }

}

/*
 * Clear a new character.
 */
void clear_char ( CHAR_DATA * ch )
{
    static CHAR_DATA ch_zero;
    int i;

    *ch = ch_zero;
    ch->name = &str_empty[0];
    ch->short_descr = &str_empty[0];
    ch->long_descr = &str_empty[0];
    ch->description = &str_empty[0];
    ch->prompt = &str_empty[0];
    ch->logon = current_time;
    ch->lines = PAGELEN;
    for ( i = 0; i < 4; i++ )
        ch->armor[i] = 100;
    ch->position = POS_STANDING;
    ch->hit = 20;
    ch->max_hit = 20;
    ch->mana = 100;
    ch->max_mana = 100;
    ch->move = 100;
    ch->max_move = 100;
    ch->on = NULL;
    for ( i = 0; i < MAX_STATS; i++ )
    {
        ch->perm_stat[i] = 13;
        ch->mod_stat[i] = 0;
    }
    return;
}

/*
 * Get an extra description from a list.
 */
char *get_extra_descr ( const char *name, EXTRA_DESCR_DATA * ed )
{
    for ( ; ed != NULL; ed = ed->next )
    {
        if ( is_name ( ( char * ) name, ed->keyword ) )
            return ed->description;
    }
    return NULL;
}

/*
 * Translates mob virtual number to its mob index struct.
 * Hash table lookup.
 */
MOB_INDEX_DATA *get_mob_index ( VNUM vnum )
{
    MOB_INDEX_DATA *pMobIndex;

    for ( pMobIndex = mob_index_hash[vnum % MAX_KEY_HASH]; pMobIndex != NULL;
          pMobIndex = pMobIndex->next )
    {
        if ( pMobIndex->vnum == vnum )
            return pMobIndex;
    }

    if ( fBootDb )
    {
        bug ( "Get_mob_index: bad vnum %d.", vnum );
        exit ( 1 );
    }

    return NULL;
}

/*
 * Translates mob virtual number to its obj index struct.
 * Hash table lookup.
 */
OBJ_INDEX_DATA *get_obj_index ( VNUM vnum )
{
    OBJ_INDEX_DATA *pObjIndex;

    for ( pObjIndex = obj_index_hash[vnum % MAX_KEY_HASH]; pObjIndex != NULL;
          pObjIndex = pObjIndex->next )
    {
        if ( pObjIndex->vnum == vnum )
            return pObjIndex;
    }

    if ( fBootDb )
    {
        bug ( "Get_obj_index: bad vnum %d.", vnum );
        exit ( 1 );
    }

    return NULL;
}

/*
 * Translates mob virtual number to its room index struct.
 * Hash table lookup.
 */
ROOM_INDEX_DATA *get_room_index ( VNUM vnum )
{
    ROOM_INDEX_DATA *pRoomIndex;

    for ( pRoomIndex = room_index_hash[vnum % MAX_KEY_HASH];
          pRoomIndex != NULL; pRoomIndex = pRoomIndex->next )
    {
        if ( pRoomIndex->vnum == vnum )
            return pRoomIndex;
    }

    if ( fBootDb )
    {
        bug ( "Get_room_index: bad vnum %d.", vnum );
        exit ( 1 );
    }

    return NULL;
}

MPROG_CODE *get_mprog_index ( VNUM vnum )
{
    MPROG_CODE *prg;
    for ( prg = mprog_list; prg; prg = prg->next )
    {
        if ( prg->vnum == vnum )
            return ( prg );
    }
    return NULL;
}

/*
 * Read a letter from a file.
 */
char fread_letter ( FILE * fp )
{
    char c;

    do
    {
        c = getc ( fp );
    }
    while ( isspace ( c ) );

    return c;
}

/*
 * Read a number from a file.
 */
int fread_number ( FILE * fp )
{
    int number;
    bool sign;
    char c;

    do
    {
        c = getc ( fp );
    }
    while ( isspace ( c ) );

    number = 0;

    sign = FALSE;
    if ( c == '+' )
    {
        c = getc ( fp );
    }
    else if ( c == '-' )
    {
        sign = TRUE;
        c = getc ( fp );
    }

    if ( !isdigit ( c ) )
    {
        bug ( "Fread_number: bad format.", 0 );
        exit ( 1 );
    }

    while ( isdigit ( c ) )
    {
        number = number * 10 + c - '0';
        c = getc ( fp );
    }

    if ( sign )
        number = 0 - number;

    if ( c == '|' )
        number += fread_number ( fp );
    else if ( c != ' ' )
        ungetc ( c, fp );

    return number;
}

FLAG fread_flag ( FILE * fp )
{
    FLAG number;
    char c;
    bool negative = FALSE;

    do
    {
        c = getc ( fp );
    }
    while ( isspace ( c ) );

    if ( c == '-' )
    {
        negative = TRUE;
        c = getc ( fp );
    }

    number = 0;

    if ( !isdigit ( c ) )
    {
        while ( ( 'A' <= c && c <= 'Z' ) || ( 'a' <= c && c <= 'z' ) )
        {
            number += flag_convert ( c );
            c = getc ( fp );
        }
    }

    while ( isdigit ( c ) )
    {
        number = number * 10 + c - '0';
        c = getc ( fp );
    }

    if ( c == '|' )
        number += fread_flag ( fp );

    else if ( c != ' ' )
        ungetc ( c, fp );

    if ( negative )
        return -1 * number;

    return number;
}

FLAG flag_convert ( char letter )
{
    FLAG bitsum = 0;
    char i;

    if ( 'A' <= letter && letter <= 'Z' )
    {
        bitsum = 1;
        for ( i = letter; i > 'A'; i-- )
            bitsum *= 2;
    }
    else if ( 'a' <= letter && letter <= 'z' )
    {
        bitsum = 67108864;      /* 2^26 */
        for ( i = letter; i > 'a'; i-- )
            bitsum *= 2;
    }

    return bitsum;
}

/*
 * Read and allocate space for a string from a file.
 * These strings are read-only and shared.
 * Strings are hashed:
 *   each string prepended with hash pointer to prev string,
 *   hash code is simply the string length.
 *   this function takes 40% to 50% of boot-up time.
 */
char *fread_string ( FILE * fp )
{
    char *plast;
    char c;

    plast = top_string + sizeof ( char * );
    if ( plast > &string_space[MAX_STRING - MAX_STRING_LENGTH] )
    {
        bug ( "Fread_string: MAX_STRING %d exceeded.", MAX_STRING );
        exit ( 1 );
    }

    /*
     * Skip blanks.
     * Read first char.
     */
    do
    {
        c = getc ( fp );
    }
    while ( isspace ( c ) );

    if ( ( *plast++ = c ) == '~' )
        return &str_empty[0];

    for ( ;; )
    {
        /*
         * Back off the char type lookup,
         *   it was too dirty for portability.
         *   -- Furey
         */

        switch ( *plast = getc ( fp ) )
        {
            default:
                plast++;
                break;

            case EOF:
                /* temp fix */
                bug ( "Fread_string: EOF", 0 );
                return NULL;
                /* exit( 1 ); */
                break;

            case '\n':
                plast++;
                *plast++ = '\r';
                break;

            case '\r':
                break;

            case '~':
                plast++;
                {
                    union
                    {
                        char *pc;
                        char rgc[sizeof ( char * )];
                    }
                    u1;
                    uint ic;
                    int iHash;
                    char *pHash;
                    char *pHashPrev;
                    char *pString;

                    plast[-1] = '\0';
                    iHash = UMIN ( MAX_KEY_HASH - 1, plast - 1 - top_string );
                    for ( pHash = string_hash[iHash]; pHash;
                          pHash = pHashPrev )
                    {
                        for ( ic = 0; ic < sizeof ( char * ); ic++ )
                            u1.rgc[ic] = pHash[ic];
                        pHashPrev = u1.pc;
                        pHash += sizeof ( char * );

                        if ( top_string[sizeof ( char * )] == pHash[0] &&
                             !strcmp ( top_string + sizeof ( char * ) + 1,
                                       pHash + 1 ) )
                            return pHash;
                    }

                    if ( fBootDb )
                    {
                        pString = top_string;
                        top_string = plast;
                        u1.pc = string_hash[iHash];
                        for ( ic = 0; ic < sizeof ( char * ); ic++ )
                            pString[ic] = u1.rgc[ic];
                        string_hash[iHash] = pString;

                        nAllocString += 1;
                        sAllocString += top_string - pString;
                        return pString + sizeof ( char * );
                    }
                    else
                    {
                        return str_dup ( top_string + sizeof ( char * ) );
                    }
                }
        }
    }
}

char *fread_string_eol ( FILE * fp )
{
    static bool char_special[256 - EOF];
    char *plast;
    char c;

    if ( char_special[EOF - EOF] != TRUE )
    {
        char_special[EOF - EOF] = TRUE;
        char_special['\n' - EOF] = TRUE;
        char_special['\r' - EOF] = TRUE;
    }

    plast = top_string + sizeof ( char * );
    if ( plast > &string_space[MAX_STRING - MAX_STRING_LENGTH] )
    {
        bug ( "Fread_string: MAX_STRING %d exceeded.", MAX_STRING );
        exit ( 1 );
    }

    /*
     * Skip blanks.
     * Read first char.
     */
    do
    {
        c = getc ( fp );
    }
    while ( isspace ( c ) );

    if ( ( *plast++ = c ) == '\n' )
        return &str_empty[0];

    for ( ;; )
    {
        if ( !char_special[( *plast++ = getc ( fp ) ) - EOF] )
            continue;

        switch ( plast[-1] )
        {
            default:
                break;

            case EOF:
                bug ( "Fread_string_eol  EOF", 0 );
                exit ( 1 );
                break;

            case '\n':
            case '\r':
            {
                union
                {
                    char *pc;
                    char rgc[sizeof ( char * )];
                }
                u1;
                uint ic;
                int iHash;
                char *pHash;
                char *pHashPrev;
                char *pString;

                plast[-1] = '\0';
                iHash = UMIN ( MAX_KEY_HASH - 1, plast - 1 - top_string );
                for ( pHash = string_hash[iHash]; pHash; pHash = pHashPrev )
                {
                    for ( ic = 0; ic < sizeof ( char * ); ic++ )
                        u1.rgc[ic] = pHash[ic];
                    pHashPrev = u1.pc;
                    pHash += sizeof ( char * );

                    if ( top_string[sizeof ( char * )] == pHash[0] &&
                         !strcmp ( top_string + sizeof ( char * ) + 1,
                                   pHash + 1 ) )
                        return pHash;
                }

                if ( fBootDb )
                {
                    pString = top_string;
                    top_string = plast;
                    u1.pc = string_hash[iHash];
                    for ( ic = 0; ic < sizeof ( char * ); ic++ )
                        pString[ic] = u1.rgc[ic];
                    string_hash[iHash] = pString;

                    nAllocString += 1;
                    sAllocString += top_string - pString;
                    return pString + sizeof ( char * );
                }
                else
                {
                    return str_dup ( top_string + sizeof ( char * ) );
                }
            }
        }
    }
}

/*
 * Read to end of line (for comments).
 */
void fread_to_eol ( FILE * fp )
{
    char c;

    do
    {
        c = getc ( fp );
    }
    while ( c != '\n' && c != '\r' );

    do
    {
        c = getc ( fp );
    }
    while ( c == '\n' || c == '\r' );

    ungetc ( c, fp );
    return;
}

/*
 * Read one word (into static buffer).
 */
char *fread_word ( FILE * fp )
{
    static char word[MAX_INPUT_LENGTH];
    char *pword;
    char cEnd;

    do
    {
        cEnd = getc ( fp );
    }
    while ( isspace ( cEnd ) );

    if ( cEnd == '\'' || cEnd == '"' )
    {
        pword = word;
    }
    else
    {
        word[0] = cEnd;
        pword = word + 1;
        cEnd = ' ';
    }

    for ( ; pword < word + MAX_INPUT_LENGTH; pword++ )
    {
        *pword = getc ( fp );
        if ( cEnd == ' ' ? isspace ( *pword ) : *pword == cEnd )
        {
            if ( cEnd == ' ' )
                ungetc ( *pword, fp );
            *pword = '\0';
            return word;
        }
    }

    bug ( "Fread_word: word too long.", 0 );
    exit ( 1 );
    return NULL;
}

/*
 * Allocate some ordinary memory,
 *   with the expectation of freeing it someday.
 */
void *alloc_mem ( size_t sMem )
{
    char *pMem;
    int iList;

#ifdef MAGIC_CHECKING
    int *magic;

    sMem += sizeof ( *magic );
#endif

    for ( iList = 0; iList < MAX_MEM_LIST; iList++ )
    {
        if ( sMem <= rgSizeList[iList] )
            break;
    }

    if ( iList == MAX_MEM_LIST )
    {
        bug ( "Alloc_mem: size %d too large.", sMem );
        exit ( 1 );
    }

    if ( rgFreeList[iList] == NULL )
    {
        pMem = ( char * ) alloc_perm ( rgSizeList[iList] );
        nAllocGP[iList]++;
    }
    else
    {
        pMem = ( char * ) rgFreeList[iList];
        rgFreeList[iList] = *( ( void ** ) rgFreeList[iList] );
    }

#ifdef MAGIC_CHECKING
    magic = ( int * ) pMem;
    *magic = MAGIC_NUM;
    pMem += sizeof ( *magic );
#endif

    return pMem;
}

/*
 * Free some memory.
 * Recycle it back onto the free list for blocks of that size.
 */
void free_mem ( void *wMem, size_t sMem )
{
    int iList;
    char *pMem = ( char * ) wMem;
#ifdef MAGIC_CHECKING
    int *magic;

    pMem -= sizeof ( *magic );
    magic = ( int * ) pMem;

    if ( *magic != MAGIC_NUM )
    {
        bugf ( "Attempt to recycle invalid memory of size %d. '%s'", sMem,
               pMem + sizeof ( *magic ) );
        return;
    }

    *magic = 0;
    sMem += sizeof ( *magic );
#endif

    for ( iList = 0; iList < MAX_MEM_LIST; iList++ )
    {
        if ( sMem <= rgSizeList[iList] )
            break;
    }

    if ( iList == MAX_MEM_LIST )
    {
        bug ( "Free_mem: size %d too large.", sMem );
        exit ( 1 );
    }

    *( ( void ** ) pMem ) = rgFreeList[iList];
    rgFreeList[iList] = pMem;

    return;
}

/*
 * Allocate some permanent memory.
 * Permanent memory is never freed,
 *   pointers into it may be copied safely.
 */
void *alloc_perm ( int sMem )
{
    static char *pMemPerm;
    static int iMemPerm;
    void *pMem;

    while ( sMem % ALLOC_PERM_ALIGN != 0 )
        sMem++;
    if ( sMem > MAX_PERM_BLOCK )
    {
        bug ( "Alloc_perm: %d too large.", sMem );
        exit ( 1 );
    }

    if ( pMemPerm == NULL || iMemPerm + sMem > MAX_PERM_BLOCK )
    {
        iMemPerm = 0;
        nPermBlocks++;
        if ( ( pMemPerm = ( char * ) calloc ( 1, MAX_PERM_BLOCK ) ) == NULL )
        {
            perror ( "Alloc_perm" );
            exit ( 1 );
        }
    }

    pMem = pMemPerm + iMemPerm;
    iMemPerm += sMem;
    nAllocPerm += 1;
    sAllocPerm += sMem;
    return pMem;
}

/*
 * Duplicate a string into dynamic memory.
 * Fread_strings are read-only and shared.
 */
char *str_dup ( const char *str )
{
    char *str_new;

    if ( str[0] == '\0' )
        return &str_empty[0];

    if ( str >= string_space && str < top_string )
        return ( char * ) str;

    str_new = ( char * ) alloc_mem ( strlen ( str ) + 1 );
    strcpy ( str_new, str );
    return str_new;
}

/*
 * Free a string.
 * Null is legal here to simplify callers.
 * Read-only shared strings are not touched.
 */
void free_string ( char *pstr )
{
    if ( pstr == NULL || pstr == &str_empty[0] ||
         ( pstr >= string_space && pstr < top_string ) )
        return;

    free_mem ( pstr, strlen ( pstr ) + 1 );
    return;
}

CH_CMD ( do_areas )
{
    char buf[MAX_STRING_LENGTH];
    AREA_DATA *pArea1;
    AREA_DATA *pArea2;
    int iArea;
    int iAreaHalf;

    if ( argument[0] != '\0' )
    {
        chsend ( "No argument is used with this command.\n\r", ch );
        return;
    }

    iAreaHalf = ( top_area + 1 ) / 2;
    pArea1 = area_first;
    pArea2 = area_first;
    for ( iArea = 0; iArea < iAreaHalf; iArea++ )
        pArea2 = pArea2->next;

    for ( iArea = 0; iArea < iAreaHalf; iArea++ )
    {
        sprintf ( buf, "%-39s%-39s\n\r", pArea1->credits,
                  ( pArea2 != NULL ) ? pArea2->credits : "" );
        chsend ( buf, ch );
        pArea1 = pArea1->next;
        if ( pArea2 != NULL )
            pArea2 = pArea2->next;
    }

    return;
}

/*
CH_CMD( do_memory )
{
    char buf[MAX_STRING_LENGTH];

    sprintf ( buf, "Affects %5d\n\r", top_affect );
    chsend ( buf, ch );
    sprintf ( buf, "Areas   %5d\n\r", top_area );
    chsend ( buf, ch );
    sprintf ( buf, "ExDes   %5d\n\r", top_ed );
    chsend ( buf, ch );
    sprintf ( buf, "Exits   %5d\n\r", top_exit );
    chsend ( buf, ch );
    sprintf ( buf, "Helps   %5d\n\r", top_help );
    chsend ( buf, ch );
#if defined(CONST_SOCIAL)
    sprintf ( buf, "Socials %5d\n\r", social_count );
    chsend ( buf, ch );
#else
    sprintf( buf, "Socials %5d\n\r", maxSocial  ); 
    chsend( buf, ch );
#endif
    sprintf ( buf, "Mobs    %5d(%d new format)\n\r", top_mob_index, newmobs );
    chsend ( buf, ch );
    sprintf ( buf, "(in use)%5d\n\r", mobile_count );
    chsend ( buf, ch );
    sprintf ( buf, "Objs    %5d(%d new format)\n\r", top_obj_index, newobjs );
    chsend ( buf, ch );
    sprintf ( buf, "Resets  %5d\n\r", top_reset );
    chsend ( buf, ch );
    sprintf ( buf, "Rooms   %5d\n\r", top_room );
    chsend ( buf, ch );
    sprintf ( buf, "Shops   %5d\n\r", top_shop );
    chsend ( buf, ch );

    sprintf ( buf, "Strings %5d strings of %7d bytes (max %d).\n\r",
              nAllocString, sAllocString, MAX_STRING );
    chsend ( buf, ch );

    sprintf ( buf, "Perms   %5d blocks  of %7d bytes.\n\r", nAllocPerm,
              sAllocPerm );
    chsend ( buf, ch );

    return;
}
*/

#if defined(WIN32)
#pragma warning(disable:4101)
#endif

CH_CMD ( do_dump )
{
    int count, count2, num_pcs, aff_count;
    CHAR_DATA *fch;
    MOB_INDEX_DATA *pMobIndex;
    PC_DATA *pc;
    OBJ_DATA *obj;
    OBJ_INDEX_DATA *pObjIndex;
    ROOM_INDEX_DATA *room;
    EXIT_DATA *pexit;
    DESCRIPTOR_DATA *d;
    AFFECT_DATA *af;
    FILE *fp;
    VNUM vnum;
    int nMatch = 0;

    /* open file */
    fp = file_open ( "mem.dmp", "w" );

    /* report use of data structures */

    num_pcs = 0;
    aff_count = 0;

    /* mobile prototypes */
    fprintf ( fp, "MobProt	%4d (%8d bytes)\n", top_mob_index,
              top_mob_index * ( sizeof ( *pMobIndex ) ) );

    /* mobs */
    count = 0;
    count2 = 0;
    for ( fch = char_list; fch != NULL; fch = fch->next )
    {
        count++;
        if ( fch->pcdata != NULL )
            num_pcs++;
        for ( af = fch->affected; af != NULL; af = af->next )
            aff_count++;
    }
    for ( fch = char_free; fch != NULL; fch = fch->next )
        count2++;

    fprintf ( fp, "Mobs	%4d (%8d bytes), %2d free (%d bytes)\n", count,
              count * ( sizeof ( *fch ) ), count2,
              count2 * ( sizeof ( *fch ) ) );

    /* pcdata */
    count = 0;
    for ( pc = pcdata_free; pc != NULL; pc = pc->next )
        count++;

    fprintf ( fp, "Pcdata	%4d (%8d bytes), %2d free (%d bytes)\n", num_pcs,
              num_pcs * ( sizeof ( *pc ) ), count,
              count * ( sizeof ( *pc ) ) );

    /* descriptors */
    count = 0;
    count2 = 0;
    for ( d = descriptor_list; d != NULL; d = d->next )
        count++;
    for ( d = descriptor_free; d != NULL; d = d->next )
        count2++;

    fprintf ( fp, "Descs	%4d (%8d bytes), %2d free (%d bytes)\n", count,
              count * ( sizeof ( *d ) ), count2, count2 * ( sizeof ( *d ) ) );

    /* object prototypes */
    for ( vnum = 0; nMatch < top_obj_index; vnum++ )
        if ( ( pObjIndex = get_obj_index ( vnum ) ) != NULL )
        {
            for ( af = pObjIndex->affected; af != NULL; af = af->next )
                aff_count++;
            nMatch++;
        }

    fprintf ( fp, "ObjProt	%4d (%8d bytes)\n", top_obj_index,
              top_obj_index * ( sizeof ( *pObjIndex ) ) );

    /* objects */
    count = 0;
    count2 = 0;
    for ( obj = object_list; obj != NULL; obj = obj->next )
    {
        count++;
        for ( af = obj->affected; af != NULL; af = af->next )
            aff_count++;
    }
    for ( obj = obj_free; obj != NULL; obj = obj->next )
        count2++;

    fprintf ( fp, "Objs	%4d (%8d bytes), %2d free (%d bytes)\n", count,
              count * ( sizeof ( *obj ) ), count2,
              count2 * ( sizeof ( *obj ) ) );

    /* affects */
    count = 0;
    for ( af = affect_free; af != NULL; af = af->next )
        count++;

    fprintf ( fp, "Affects	%4d (%8d bytes), %2d free (%d bytes)\n",
              aff_count, aff_count * ( sizeof ( *af ) ), count,
              count * ( sizeof ( *af ) ) );

    /* rooms */
    fprintf ( fp, "Rooms	%4d (%8d bytes)\n", top_room,
              top_room * ( sizeof ( *room ) ) );

    /* exits */
    fprintf ( fp, "Exits	%4d (%8d bytes)\n", top_exit,
              top_exit * ( sizeof ( *pexit ) ) );

    file_close ( fp );

    /* start printing out mobile data */
    fp = file_open ( "mob.dmp", "w" );

    fprintf ( fp, "\nMobile Analysis\n" );
    fprintf ( fp, "---------------\n" );
    nMatch = 0;
    for ( vnum = 0; nMatch < top_mob_index; vnum++ )
        if ( ( pMobIndex = get_mob_index ( vnum ) ) != NULL )
        {
            nMatch++;
            fprintf ( fp, "#%-4ld %3d active %3d killed     %s\n",
                      pMobIndex->vnum, pMobIndex->count, pMobIndex->killed,
                      pMobIndex->short_descr );
        }
    file_close ( fp );

    /* start printing out object data */
    fp = file_open ( "obj.dmp", "w" );

    fprintf ( fp, "\nObject Analysis\n" );
    fprintf ( fp, "---------------\n" );
    nMatch = 0;
    for ( vnum = 0; nMatch < top_obj_index; vnum++ )
        if ( ( pObjIndex = get_obj_index ( vnum ) ) != NULL )
        {
            nMatch++;
            fprintf ( fp, "#%-4ld %3d active %3d reset      %s\n",
                      pObjIndex->vnum, pObjIndex->count, pObjIndex->reset_num,
                      pObjIndex->short_descr );
        }

    /* close file */
    file_close ( fp );
}

#if defined(WIN32)
#pragma warning(default: 4101)
#endif

/*
 * Stick a little fuzz on a number.
 */
int number_fuzzy ( int number )
{
    switch ( number_bits ( 2 ) )
    {
        case 0:
            number -= 1;
            break;
        case 3:
            number += 1;
            break;
    }

    return UMAX ( 1, number );
}

/*
 * Generate a random number.
 */
int number_range ( int from, int to )
{
    int power;
    int number;

    if ( from == 0 && to == 0 )
        return 0;

    if ( ( to = to - from + 1 ) <= 1 )
        return from;

    for ( power = 2; power < to; power <<= 1 )
        ;

    while ( ( number = number_mm (  ) & ( power - 1 ) ) >= to )
        ;

    return from + number;
}

/*
 * Generate a percentile roll.
 */
int number_percent ( void )
{
    int percent;

    while ( ( percent = number_mm (  ) & ( 128 - 1 ) ) > 99 )
        ;

    return 1 + percent;
}

/*
 * Generate a random door.
 */
int number_door ( void )
{
    int door;

    while ( ( door = number_mm (  ) & ( 8 - 1 ) ) > 5 )
        ;

    return door;
}

int number_bits ( int width )
{
    return number_mm (  ) & ( ( 1 << width ) - 1 );
}

/*
 * I've gotten too many bad reports on OS-supplied random number generators.
 * This is the Mitchell-Moore algorithm from Knuth Volume II.
 * Best to leave the constants alone unless you've read Knuth.
 * -- Furey
 */

/* I noticed streaking with this random number generator, so I switched
   back to the system srandom call.  If this doesn't work for you, 
   define OLD_RAND to use the old system -- Alander */

#if defined (OLD_RAND)
static int rgiState[2 + 55];
#endif

void init_mm (  )
{
#if defined (OLD_RAND)
    int *piState;
    int iState;

    piState = &rgiState[2];

    piState[-2] = 55 - 55;
    piState[-1] = 55 - 24;

    piState[0] = ( ( int ) current_time ) & ( ( 1 << 30 ) - 1 );
    piState[1] = 1;
    for ( iState = 2; iState < 55; iState++ )
    {
        piState[iState] =
            ( piState[iState - 1] + piState[iState - 2] ) & ( ( 1 << 30 ) -
                                                              1 );
    }
#else
    srandom ( time ( NULL ) ^ getpid (  ) );
#endif
    return;
}

long number_mm ( void )
{
#if defined (OLD_RAND)
    int *piState;
    int iState1;
    int iState2;
    int iRand;

    piState = &rgiState[2];
    iState1 = piState[-2];
    iState2 = piState[-1];
    iRand = ( piState[iState1] + piState[iState2] ) & ( ( 1 << 30 ) - 1 );
    piState[iState1] = iRand;
    if ( ++iState1 == 55 )
        iState1 = 0;
    if ( ++iState2 == 55 )
        iState2 = 0;
    piState[-2] = iState1;
    piState[-1] = iState2;
    return iRand >> 6;
#else
    return random (  ) >> 6;
#endif
}

/*
 * Roll some dice.
 */
int dice ( int number, int size )
{
    int idice;
    int sum;

    switch ( size )
    {
        case 0:
            return 0;
        case 1:
            return number;
    }

    for ( idice = 0, sum = 0; idice < number; idice++ )
        sum += number_range ( 1, size );

    return sum;
}

/*
 * Simple linear interpolation.
 */
int interpolate ( int level, int value_00, int value_32 )
{
    return value_00 + level * ( value_32 - value_00 ) / 32;
}

/*
 * Removes the tildes from a string.
 * Used for player-entered strings that go into disk files.
 */
void smash_tilde ( char *str )
{
    for ( ; *str != '\0'; str++ )
    {
        if ( *str == '~' )
            *str = '-';
    }

    return;
}

/*
 * Compare strings, case insensitive.
 * Return TRUE if different
 *   (compatibility with historical functions).
 */
bool str_cmp ( const char *astr, const char *bstr )
{
    if ( astr == NULL )
    {
        bug ( "Str_cmp: null astr.", 0 );
        return TRUE;
    }

    if ( bstr == NULL )
    {
        bug ( "Str_cmp: null bstr.", 0 );
        return TRUE;
    }

    for ( ; *astr || *bstr; astr++, bstr++ )
    {
        if ( LOWER ( *astr ) != LOWER ( *bstr ) )
            return TRUE;
    }

    return FALSE;
}

/*
 * Compare strings, case insensitive, for prefix matching.
 * Return TRUE if astr not a prefix of bstr
 *   (compatibility with historical functions).
 */
bool str_prefix ( const char *astr, const char *bstr )
{
    if ( astr == NULL )
    {
        bug ( "Strn_cmp: null astr.", 0 );
        return TRUE;
    }

    if ( bstr == NULL )
    {
        bug ( "Strn_cmp: null bstr.", 0 );
        return TRUE;
    }

    for ( ; *astr; astr++, bstr++ )
    {
        if ( LOWER ( *astr ) != LOWER ( *bstr ) )
            return TRUE;
    }

    return FALSE;
}

/*
 * Compare strings, case insensitive, for match anywhere.
 * Returns TRUE is astr not part of bstr.
 *   (compatibility with historical functions).
 */
bool str_infix ( const char *astr, const char *bstr )
{
    int sstr1;
    int sstr2;
    int ichar;
    char c0;

    if ( ( c0 = LOWER ( astr[0] ) ) == '\0' )
        return FALSE;

    sstr1 = strlen ( astr );
    sstr2 = strlen ( bstr );

    for ( ichar = 0; ichar <= sstr2 - sstr1; ichar++ )
    {
        if ( c0 == LOWER ( bstr[ichar] ) &&
             !str_prefix ( astr, bstr + ichar ) )
            return FALSE;
    }

    return TRUE;
}

/*
 * Compare strings, case insensitive, for suffix matching.
 * Return TRUE if astr not a suffix of bstr
 *   (compatibility with historical functions).
 */
bool str_suffix ( const char *astr, const char *bstr )
{
    int sstr1;
    int sstr2;

    sstr1 = strlen ( astr );
    sstr2 = strlen ( bstr );
    if ( sstr1 <= sstr2 && !str_cmp ( astr, bstr + sstr2 - sstr1 ) )
        return FALSE;
    else
        return TRUE;
}

/*
 * Returns an initial-capped string.
 */
char *capitalize ( const char *str )
{
    static char strcap[MAX_STRING_LENGTH];
    int i;

    for ( i = 0; str[i] != '\0'; i++ )
        strcap[i] = LOWER ( str[i] );
    strcap[i] = '\0';
    strcap[0] = UPPER ( strcap[0] );
    return strcap;
}

/*
 * Append a string to a file.
 */
void append_file ( CHAR_DATA * ch, char *file, char *str )
{
    FILE *fp;

    if ( IS_NPC ( ch ) || str[0] == '\0' )
        return;

    if ( ( fp = file_open ( file, "a" ) ) == NULL )
    {
        perror ( file );
        chsend ( "Could not open the file!\n\r", ch );
    }
    else
    {
        fprintf ( fp, "[%5ld] %s: %s\n", ch->in_room ? ch->in_room->vnum : 0,
                  ch->name, str );
        file_close ( fp );
    }

    return;
}

/*
 * Reports a bug.
 */
void bug ( const char *str, int param )
{
    char buf[MAX_STRING_LENGTH];

    if ( fpArea != NULL )
    {
        int iLine;
        int iChar;

        if ( fpArea == stdin )
        {
            iLine = 0;
        }
        else
        {
            iChar = ftell ( fpArea );
            fseek ( fpArea, 0, 0 );
            for ( iLine = 0; ftell ( fpArea ) < iChar; iLine++ )
            {
                while ( getc ( fpArea ) != '\n' )
                    ;
            }
            fseek ( fpArea, iChar, 0 );
        }

        sprintf ( buf, "[*****] FILE: %s LINE: %d", strArea, iLine );
        log_string ( buf );
/* RT removed because we don't want bugs shutting the mud 
	if ( ( fp = file_open( "shutdown.txt", "a" ) ) != NULL )
	{
	    fprintf( fp, "[*****] %s\n", buf );
	    file_close( fp );
	}
*/
    }

    strcpy ( buf, "[*****] BUG: " );
    sprintf ( buf + strlen ( buf ), str, param );
    log_string ( buf );
/* RT removed due to bug-file spamming 
    if ( ( fp = file_open( BUG_FILE, "a" ) ) != NULL )
    {
	fprintf( fp, "%s\n", buf );
	file_close( fp );
    }
*/

    return;
}

/*
 * Writes a string to the log.
 */
void log_string ( const char *str )
{
    char *strtime;

    strtime = ctime ( &current_time );
    strtime[strlen ( strtime ) - 1] = '\0';
    fprintf ( stderr, "%s :: %s\n", strtime, str );
    return;
}

/*
 * This function is here to aid in debugging.
 * If the last expression in a function is another function call,
 *   gcc likes to generate a JMP instead of a CALL.
 * This is called "tail chaining."
 * It hoses the debugger call stack for that call.
 * So I make this the last call in certain critical functions,
 *   where I really need the call stack to be right for debugging!
 *
 * If you don't understand this, then LEAVE IT ALONE.
 * Don't remove any calls to tail_chain anywhere.
 *
 * -- Furey
 */
void tail_chain ( void )
{
    return;
}