/***************************************************************************
 *  File: mem.c                                                            *
 *                                                                         *
 *  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.                                                  *
 *                                                                         *
 *  This code was freely distributed with the The Isles 1.1 source code,   *
 *  and has been used here for OLC - OLC would not be what it is without   *
 *  all the previous coders who released their source code.                *
 *                                                                         *
 ***************************************************************************/



#if defined(macintosh)
#include <types.h>
#else
#include <sys/types.h>
#endif
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "merc.h"

/*
 * Globals
 */
extern int top_reset;
extern int top_area;
extern int top_exit;
extern int top_ed;
extern int top_room;
extern int top_mprog_index;

AREA_DATA *area_free;
EXTRA_DESCR_DATA *extra_descr_free;
EXIT_DATA *exit_free;
ROOM_INDEX_DATA *room_index_free;
OBJ_INDEX_DATA *obj_index_free;
SHOP_DATA *shop_free;
MOB_INDEX_DATA *mob_index_free;
RESET_DATA *reset_free;
HELP_DATA *help_free;

HELP_DATA *help_last;

void free_extra_descr args ((EXTRA_DESCR_DATA * pExtra));
void free_affect args ((AFFECT_DATA * af));
void free_mprog args ((MPROG_LIST * mp));


RESET_DATA *new_reset_data (void)
{
    RESET_DATA *pReset;

    if (!reset_free)
    {
        pReset = alloc_perm (sizeof (*pReset));
        top_reset++;
    }
    else
    {
        pReset = reset_free;
        reset_free = reset_free->next;
    }

    pReset->next = NULL;
    pReset->command = 'X';
    pReset->arg1 = 0;
    pReset->arg2 = 0;
    pReset->arg3 = 0;
    pReset->arg4 = 0;

    return pReset;
}



void free_reset_data (RESET_DATA * pReset)
{
    pReset->next = reset_free;
    reset_free = pReset;
    return;
}



AREA_DATA *new_area (void)
{
    AREA_DATA *pArea;
    char buf[MAX_INPUT_LENGTH];

    if (!area_free)
    {
        pArea = alloc_perm (sizeof (*pArea));
        top_area++;
    }
    else
    {
        pArea = area_free;
        area_free = area_free->next;
    }

    pArea->next = NULL;
    pArea->name = str_dup ("New area");
/*    pArea->recall           =   ROOM_VNUM_TEMPLE;      ROM OLC */
    pArea->area_flags = AREA_ADDED;
    pArea->security = 1;
    pArea->builders = str_dup ("None");
    pArea->min_vnum = 0;
    pArea->max_vnum = 0;
    pArea->age = 0;
    pArea->nplayer = 0;
    pArea->empty = TRUE;        /* ROM patch */
    sprintf (buf, "area%d.are", pArea->vnum);
    pArea->file_name = str_dup (buf);
    pArea->vnum = top_area - 1;

    return pArea;
}



void free_area (AREA_DATA * pArea)
{
    free_string (pArea->name);
    free_string (pArea->file_name);
    free_string (pArea->builders);
    free_string (pArea->credits);

    pArea->next = area_free->next;
    area_free = pArea;
    return;
}



EXIT_DATA *new_exit (void)
{
    EXIT_DATA *pExit;

    if (!exit_free)
    {
        pExit = alloc_perm (sizeof (*pExit));
        top_exit++;
    }
    else
    {
        pExit = exit_free;
        exit_free = exit_free->next;
    }

    pExit->u1.to_room = NULL;    /* ROM OLC */
    pExit->next = NULL;
/*  pExit->vnum         =   0;                        ROM OLC */
    pExit->exit_info = 0;
    pExit->key = 0;
    pExit->keyword = &str_empty[0];
    pExit->description = &str_empty[0];
    pExit->rs_flags = 0;

    return pExit;
}



void free_exit (EXIT_DATA * pExit)
{
    free_string (pExit->keyword);
    free_string (pExit->description);

    pExit->next = exit_free;
    exit_free = pExit;
    return;
}


ROOM_INDEX_DATA *new_room_index (void)
{
    ROOM_INDEX_DATA *pRoom;
    int door;

    if (!room_index_free)
    {
        pRoom = alloc_perm (sizeof (*pRoom));
        top_room++;
    }
    else
    {
        pRoom = room_index_free;
        room_index_free = room_index_free->next;
    }

    pRoom->next = NULL;
    pRoom->people = NULL;
    pRoom->contents = NULL;
    pRoom->extra_descr = NULL;
    pRoom->area = NULL;

    for (door = 0; door < MAX_DIR; door++)
        pRoom->exit[door] = NULL;

    pRoom->name = &str_empty[0];
    pRoom->description = &str_empty[0];
    pRoom->owner = &str_empty[0];
    pRoom->vnum = 0;
    pRoom->room_flags = 0;
    pRoom->light = 0;
    pRoom->sector_type = 0;
    pRoom->clan = 0;
    pRoom->heal_rate = 100;
    pRoom->mana_rate = 100;

    return pRoom;
}



void free_room_index (ROOM_INDEX_DATA * pRoom)
{
    int door;
    EXTRA_DESCR_DATA *pExtra;
    RESET_DATA *pReset;

    free_string (pRoom->name);
    free_string (pRoom->description);
    free_string (pRoom->owner);

    for (door = 0; door < MAX_DIR; door++)
    {
        if (pRoom->exit[door])
            free_exit (pRoom->exit[door]);
    }

    for (pExtra = pRoom->extra_descr; pExtra; pExtra = pExtra->next)
    {
        free_extra_descr (pExtra);
    }

    for (pReset = pRoom->reset_first; pReset; pReset = pReset->next)
    {
        free_reset_data (pReset);
    }

    pRoom->next = room_index_free;
    room_index_free = pRoom;
    return;
}

extern AFFECT_DATA *affect_free;


SHOP_DATA *new_shop (void)
{
    SHOP_DATA *pShop;
    int buy;

    if (!shop_free)
    {
        pShop = alloc_perm (sizeof (*pShop));
        top_shop++;
    }
    else
    {
        pShop = shop_free;
        shop_free = shop_free->next;
    }

    pShop->next = NULL;
    pShop->keeper = 0;

    for (buy = 0; buy < MAX_TRADE; buy++)
        pShop->buy_type[buy] = 0;

    pShop->profit_buy = 100;
    pShop->profit_sell = 100;
    pShop->open_hour = 0;
    pShop->close_hour = 23;

    return pShop;
}



void free_shop (SHOP_DATA * pShop)
{
    pShop->next = shop_free;
    shop_free = pShop;
    return;
}



OBJ_INDEX_DATA *new_obj_index (void)
{
    OBJ_INDEX_DATA *pObj;
    int value;

    if (!obj_index_free)
    {
        pObj = alloc_perm (sizeof (*pObj));
        top_obj_index++;
    }
    else
    {
        pObj = obj_index_free;
        obj_index_free = obj_index_free->next;
    }

    pObj->next = NULL;
    pObj->extra_descr = NULL;
    pObj->affected = NULL;
    pObj->area = NULL;
    pObj->name = str_dup ("no name");
    pObj->short_descr = str_dup ("(no short description)");
    pObj->description = str_dup ("(no description)");
    pObj->vnum = 0;
    pObj->item_type = ITEM_TRASH;
    pObj->extra_flags = 0;
    pObj->wear_flags = 0;
    pObj->count = 0;
    pObj->weight = 0;
    pObj->cost = 0;
    pObj->material = str_dup ("unknown");    /* ROM */
    pObj->condition = 100;        /* ROM */
    for (value = 0; value < 5; value++)    /* 5 - ROM */
        pObj->value[value] = 0;

    pObj->new_format = TRUE;    /* ROM */

    return pObj;
}



void free_obj_index (OBJ_INDEX_DATA * pObj)
{
    EXTRA_DESCR_DATA *pExtra;
    AFFECT_DATA *pAf;

    free_string (pObj->name);
    free_string (pObj->short_descr);
    free_string (pObj->description);

    for (pAf = pObj->affected; pAf; pAf = pAf->next)
    {
        free_affect (pAf);
    }

    for (pExtra = pObj->extra_descr; pExtra; pExtra = pExtra->next)
    {
        free_extra_descr (pExtra);
    }

    pObj->next = obj_index_free;
    obj_index_free = pObj;
    return;
}



MOB_INDEX_DATA *new_mob_index (void)
{
    MOB_INDEX_DATA *pMob;

    if (!mob_index_free)
    {
        pMob = alloc_perm (sizeof (*pMob));
        top_mob_index++;
    }
    else
    {
        pMob = mob_index_free;
        mob_index_free = mob_index_free->next;
    }

    pMob->next = NULL;
    pMob->spec_fun = NULL;
    pMob->pShop = NULL;
    pMob->area = NULL;
    pMob->player_name = str_dup ("no name");
    pMob->short_descr = str_dup ("(no short description)");
    pMob->long_descr = str_dup ("(no long description)\n\r");
    pMob->description = &str_empty[0];
    pMob->vnum = 0;
    pMob->count = 0;
    pMob->killed = 0;
    pMob->sex = 0;
    pMob->level = 0;
    pMob->act = ACT_IS_NPC;
    pMob->affected_by = 0;
    pMob->alignment = 0;
    pMob->hitroll = 0;
    pMob->race = race_lookup ("human");    /* - Hugin */
    pMob->form = 0;                /* ROM patch -- Hugin */
    pMob->parts = 0;            /* ROM patch -- Hugin */
    pMob->imm_flags = 0;        /* ROM patch -- Hugin */
    pMob->res_flags = 0;        /* ROM patch -- Hugin */
    pMob->vuln_flags = 0;        /* ROM patch -- Hugin */
    pMob->material = str_dup ("unknown");    /* -- Hugin */
    pMob->off_flags = 0;        /* ROM patch -- Hugin */
    pMob->size = SIZE_MEDIUM;    /* ROM patch -- Hugin */
    pMob->ac[AC_PIERCE] = 0;    /* ROM patch -- Hugin */
    pMob->ac[AC_BASH] = 0;        /* ROM patch -- Hugin */
    pMob->ac[AC_SLASH] = 0;        /* ROM patch -- Hugin */
    pMob->ac[AC_EXOTIC] = 0;    /* ROM patch -- Hugin */
    pMob->hit[DICE_NUMBER] = 0;    /* ROM patch -- Hugin */
    pMob->hit[DICE_TYPE] = 0;    /* ROM patch -- Hugin */
    pMob->hit[DICE_BONUS] = 0;    /* ROM patch -- Hugin */
    pMob->mana[DICE_NUMBER] = 0;    /* ROM patch -- Hugin */
    pMob->mana[DICE_TYPE] = 0;    /* ROM patch -- Hugin */
    pMob->mana[DICE_BONUS] = 0;    /* ROM patch -- Hugin */
    pMob->damage[DICE_NUMBER] = 0;    /* ROM patch -- Hugin */
    pMob->damage[DICE_TYPE] = 0;    /* ROM patch -- Hugin */
    pMob->damage[DICE_NUMBER] = 0;    /* ROM patch -- Hugin */
    pMob->start_pos = POS_STANDING;    /*  -- Hugin */
    pMob->default_pos = POS_STANDING;    /*  -- Hugin */
    pMob->wealth = 0;

    pMob->new_format = TRUE;    /* ROM */

    return pMob;
}



void free_mob_index (MOB_INDEX_DATA * pMob)
{
    free_string (pMob->player_name);
    free_string (pMob->short_descr);
    free_string (pMob->long_descr);
    free_string (pMob->description);
    free_mprog (pMob->mprogs);

    free_shop (pMob->pShop);

    pMob->next = mob_index_free;
    mob_index_free = pMob;
    return;
}

MPROG_CODE *mpcode_free;

MPROG_CODE *new_mpcode (void)
{
    MPROG_CODE *NewCode;

    if (!mpcode_free)
    {
        NewCode = alloc_perm (sizeof (*NewCode));
        top_mprog_index++;
    }
    else
    {
        NewCode = mpcode_free;
        mpcode_free = mpcode_free->next;
    }

    NewCode->vnum = 0;
    NewCode->code = str_dup ("");
    NewCode->next = NULL;

    return NewCode;
}

void free_mpcode (MPROG_CODE * pMcode)
{
    free_string (pMcode->code);
    pMcode->next = mpcode_free;
    mpcode_free = pMcode;
    return;
}