/*-
 * Copyright (c) 1988, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Timothy C. Stoehr.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * @(#)init.c   8.1 (Berkeley) 5/31/93
 * $FreeBSD: src/games/rogue/init.c,v 1.4 1999/11/30 03:49:22 billf Exp $
 */

/*
 * init.c
 *
 * This source herein may be modified and/or distributed by anybody who
 * so desires, with the following restrictions:
 *    1.)  No portion of this notice shall be removed.
 *    2.)  Credit shall not be taken for the creation of this source.
 *    3.)  This code is not to be traded, sold, or used for personal
 *         gain or profit.
 *
 */

#include <stdio.h>
#include "rogue.h"

static void do_args(int, char **);
static void do_opts(void);
static void env_get_value(char **, char *, boolean);
static void init_str(char **, const char *);
static void player_init(void);

static char *rest_file = NULL;
static boolean init_curses = 0;

char login_name[MAX_OPT_LEN];
char *nick_name = NULL;
boolean cant_int = 0;
boolean did_int = 0;
boolean score_only;
boolean save_is_interactive = 1;
boolean ask_quit = 1;
boolean no_skull = 0;
boolean passgo = 0;
boolean flush = 1;
const char *error_file = "rogue.esave";
const char *byebye_string = "Okay, bye bye!";

boolean
init(int argc, char *argv[])
{
        const char *pn;

        pn = md_gln();
        if ((!pn) || (strlen(pn) >= MAX_OPT_LEN)) {
                clean_up("Hey!  Who are you?");
        }
        strcpy(login_name, pn);

        do_args(argc, argv);
        do_opts();

        if (!score_only && !rest_file) {
                printf("Hello %s, just a moment while I dig the dungeon...",
                        nick_name);
                fflush(stdout);
        }

        initscr();
        if ((LINES < DROWS) || (COLS < DCOLS)) {
                clean_up("must be played on 24 x 80 screen");
        }
        start_window();
        init_curses = 1;

        md_heed_signals();

        if (score_only) {
                put_scores(NULL, 0);
        }
        srandomdev();
        if (rest_file) {
                restore(rest_file);
                return(1);
        }
        mix_colors();
        get_wand_and_ring_materials();
        make_scroll_titles();

        level_objects.next_object = NULL;
        level_monsters.next_monster = NULL;
        player_init();
        ring_stats(0);
        return(0);
}

static void
player_init(void)
{
        object *obj;

        rogue.pack.next_object = NULL;

        obj = alloc_object();
        get_food(obj, 1);
        add_to_pack(obj, &rogue.pack, 1);

        obj = alloc_object();           /* initial armor */
        obj->what_is = ARMOR;
        obj->which_kind = RINGMAIL;
        obj->class = RINGMAIL+2;
        obj->is_protected = 0;
        obj->d_enchant = 1;
        add_to_pack(obj, &rogue.pack, 1);
        do_wear(obj);

        obj = alloc_object();           /* initial weapons */
        obj->what_is = WEAPON;
        obj->which_kind = MACE;
        obj->damage = "2d3";
        obj->hit_enchant = obj->d_enchant = 1;
        obj->identified = 1;
        add_to_pack(obj, &rogue.pack, 1);
        do_wield(obj);

        obj = alloc_object();
        obj->what_is = WEAPON;
        obj->which_kind = BOW;
        obj->damage = "1d2";
        obj->hit_enchant = 1;
        obj->d_enchant = 0;
        obj->identified = 1;
        add_to_pack(obj, &rogue.pack, 1);

        obj = alloc_object();
        obj->what_is = WEAPON;
        obj->which_kind = ARROW;
        obj->quantity = get_rand(25, 35);
        obj->damage = "1d2";
        obj->hit_enchant = 0;
        obj->d_enchant = 0;
        obj->identified = 1;
        add_to_pack(obj, &rogue.pack, 1);
}

void
clean_up(const char *estr)
{
        if (save_is_interactive) {
                if (init_curses) {
                        move(DROWS-1, 0);
                        refresh();
                        stop_window();
                }
                printf("\n%s\n", estr);
        }
        md_exit(0);
}

void
start_window(void)
{
        cbreak();
        noecho();
#ifndef BAD_NONL
        nonl();
#endif
        md_control_keybord(0);
}

void
stop_window(void)
{
        endwin();
        md_control_keybord(1);
}

void
byebye(__unused int sig)
{
        md_ignore_signals();
        if (ask_quit) {
                quit(1);
        } else {
                clean_up(byebye_string);
        }
        md_heed_signals();
}

void
onintr(__unused int sig)
{
        md_ignore_signals();
        if (cant_int) {
                did_int = 1;
        } else {
                check_message();
                message("interrupt", 1);
        }
        md_heed_signals();
}

void
error_save(__unused int sig)
{
        save_is_interactive = 0;
        save_into_file(error_file);
        clean_up("");
}

static void
do_args(int argc, char *argv[])
{
        short i, j;

        for (i = 1; i < argc; i++) {
                if (argv[i][0] == '-') {
                        for (j = 1; argv[i][j]; j++) {
                                switch(argv[i][j]) {
                                case 's':
                                        score_only = 1;
                                        break;
                                }
                        }
                } else {
                        rest_file = argv[i];
                }
        }
}

static void
do_opts(void)
{
        char *eptr;

        if ((eptr = md_getenv("ROGUEOPTS")) != NULL) {
                for (;;) {
                        while ((*eptr) == ' ') {
                                eptr++;
                        }
                        if (!(*eptr)) {
                                break;
                        }
                        if (!strncmp(eptr, "fruit=", 6)) {
                                eptr += 6;
                                env_get_value(&fruit, eptr, 1);
                        } else if (!strncmp(eptr, "file=", 5)) {
                                eptr += 5;
                                env_get_value(&save_file, eptr, 0);
                        } else if (!strncmp(eptr, "jump", 4)) {
                                jump = 1;
                        } else if (!strncmp(eptr, "name=", 5)) {
                                eptr += 5;
                                env_get_value(&nick_name, eptr, 0);
                        } else if (!strncmp(eptr, "noaskquit", 9)) {
                                ask_quit = 0;
                        } else if (!strncmp(eptr, "noskull", 7) ||
                                        !strncmp(eptr,"notomb", 6)) {
                                no_skull = 1;
                        } else if (!strncmp(eptr, "passgo", 6)) {
                                passgo = 1;
                        } else if (!strncmp(eptr, "noflush", 7)) {
                                flush = 0;
                        }
                        while ((*eptr) && (*eptr != ',')) {
                                eptr++;
                        }
                        if (!(*(eptr++))) {
                                break;
                        }
                }
        }
        /* If some strings have not been set through ROGUEOPTS, assign defaults
         * to them so that the options editor has data to work with.
         */
        init_str(&nick_name, login_name);
        init_str(&save_file, "rogue.save");
        init_str(&fruit, "slime-mold");
}

static void
env_get_value(char **s, char *e, boolean add_blank)
{
        short i = 0;
        const char *t;

        t = e;

        while ((*e) && (*e != ',')) {
                if (*e == ':') {
                        *e = ';';               /* ':' reserved for score file purposes */
                }
                e++;
                if (++i >= MAX_OPT_LEN) {
                        break;
                }
        }
        /* note: edit_opts() in room.c depends on this being the right size */
        *s = md_malloc(MAX_OPT_LEN + 2);
        if (*s == NULL)
                clean_up("out of memory");
        strncpy(*s, t, i);
        if (add_blank) {
                (*s)[i++] = ' ';
        }
        (*s)[i] = '\0';
}

static void
init_str(char **str, const char *dflt)
{
        if (!(*str)) {
                /* note: edit_opts() in room.c depends on this size */
                *str = md_malloc(MAX_OPT_LEN + 2);
                if (*str == NULL)
                        clean_up("out of memory");
                strcpy(*str, dflt);
        }
}