initial commit

1 files changed, 427 insertions, 0 deletions

diff --git a/rogue/save.c b/rogue/save.c
new file mode 100644
index 0000000..4a7190a
--- /dev/null
+++ b/rogue/save.c
@@ -0,0 +1,427 @@
+/*	$NetBSD: save.c,v 1.13 2008/01/14 03:50:02 dholland Exp $	*/
+
+/*
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)save.c	8.1 (Berkeley) 5/31/93";
+#else
+__RCSID("$NetBSD: save.c,v 1.13 2008/01/14 03:50:02 dholland Exp $");
+#endif
+#endif /* not lint */
+
+/*
+ * save.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 boolean	has_been_touched(const struct rogue_time *, 
+			const struct rogue_time *);
+static void	r_read(FILE *, void *, size_t);
+static void	r_write(FILE *, const void *, size_t);
+static void	read_pack(object *, FILE *, boolean);
+static void	read_string(char *, FILE *, size_t);
+static void	rw_dungeon(FILE *, boolean);
+static void	rw_id(struct id *, FILE *, int, boolean);
+static void	rw_rooms(FILE *, boolean);
+static void	write_pack(const object *, FILE *);
+static void	write_string(char *, FILE *);
+
+static short write_failed = 0;
+
+char *save_file = NULL;
+
+void
+save_game(void)
+{
+	char fname[64];
+
+	if (!get_input_line("file name?", save_file, fname, sizeof(fname),
+			"game not saved", 0, 1)) {
+		return;
+	}
+	check_message();
+	messagef(0, "%s", fname);
+	save_into_file(fname);
+}
+
+void
+save_into_file(const char *sfile)
+{
+	FILE *fp;
+	int file_id;
+	char *name_buffer;
+	size_t len;
+	char *hptr;
+	struct rogue_time rt_buf;
+
+	if (sfile[0] == '~') {
+		if ((hptr = md_getenv("HOME")) != NULL) {
+			len = strlen(hptr) + strlen(sfile);
+			name_buffer = md_malloc(len);
+			if (name_buffer == NULL) {
+				messagef(0,
+					"out of memory for save file name");
+				sfile = error_file;
+			} else {
+				(void)strcpy(name_buffer, hptr);
+				(void)strcat(name_buffer, sfile+1);
+				sfile = name_buffer;
+			}
+			/*
+			 * Note: name_buffer gets leaked. But it's small,
+			 * and in the common case we're about to exit.
+			 */
+		}
+	}
+	if (((fp = fopen(sfile, "w")) == NULL) ||
+	    ((file_id = md_get_file_id(sfile)) == -1)) {
+		if (fp)
+			fclose(fp);
+		messagef(0, "problem accessing the save file");
+		return;
+	}
+	md_ignore_signals();
+	write_failed = 0;
+	(void)xxx(1);
+	r_write(fp, &detect_monster, sizeof(detect_monster));
+	r_write(fp, &cur_level, sizeof(cur_level));
+	r_write(fp, &max_level, sizeof(max_level));
+	write_string(hunger_str, fp);
+	write_string(login_name, fp);
+	r_write(fp, &party_room, sizeof(party_room));
+	write_pack(&level_monsters, fp);
+	write_pack(&level_objects, fp);
+	r_write(fp, &file_id, sizeof(file_id));
+	rw_dungeon(fp, 1);
+	r_write(fp, &foods, sizeof(foods));
+	r_write(fp, &rogue, sizeof(fighter));
+	write_pack(&rogue.pack, fp);
+	rw_id(id_potions, fp, POTIONS, 1);
+	rw_id(id_scrolls, fp, SCROLS, 1);
+	rw_id(id_wands, fp, WANDS, 1);
+	rw_id(id_rings, fp, RINGS, 1);
+	r_write(fp, traps, (MAX_TRAPS * sizeof(trap)));
+	r_write(fp, is_wood, (WANDS * sizeof(boolean)));
+	r_write(fp, &cur_room, sizeof(cur_room));
+	rw_rooms(fp, 1);
+	r_write(fp, &being_held, sizeof(being_held));
+	r_write(fp, &bear_trap, sizeof(bear_trap));
+	r_write(fp, &halluc, sizeof(halluc));
+	r_write(fp, &blind, sizeof(blind));
+	r_write(fp, &confused, sizeof(confused));
+	r_write(fp, &levitate, sizeof(levitate));
+	r_write(fp, &haste_self, sizeof(haste_self));
+	r_write(fp, &see_invisible, sizeof(see_invisible));
+	r_write(fp, &detect_monster, sizeof(detect_monster));
+	r_write(fp, &wizard, sizeof(wizard));
+	r_write(fp, &score_only, sizeof(score_only));
+	r_write(fp, &m_moves, sizeof(m_moves));
+	md_gct(&rt_buf);
+	rt_buf.second += 10;		/* allow for some processing time */
+	r_write(fp, &rt_buf, sizeof(rt_buf));
+	fclose(fp);
+
+	if (write_failed) {
+		(void)md_df(sfile);	/* delete file */
+	} else {
+		clean_up("");
+	}
+}
+
+void
+restore(const char *fname)
+{
+	FILE *fp;
+	struct rogue_time saved_time, mod_time;
+	char buf[4];
+	char tbuf[MAX_OPT_LEN];
+	int new_file_id, saved_file_id;
+
+	fp = NULL;
+	if (((new_file_id = md_get_file_id(fname)) == -1) ||
+	    ((fp = fopen(fname, "r")) == NULL)) {
+		clean_up("cannot open file");
+	}
+	if (md_link_count(fname) > 1) {
+		clean_up("file has link");
+	}
+	(void)xxx(1);
+	r_read(fp, &detect_monster, sizeof(detect_monster));
+	r_read(fp, &cur_level, sizeof(cur_level));
+	r_read(fp, &max_level, sizeof(max_level));
+	read_string(hunger_str, fp, sizeof hunger_str);
+
+	(void)strlcpy(tbuf, login_name, sizeof tbuf);
+	read_string(login_name, fp, sizeof login_name);
+	if (strcmp(tbuf, login_name)) {
+		clean_up("you're not the original player");
+	}
+
+	r_read(fp, &party_room, sizeof(party_room));
+	read_pack(&level_monsters, fp, 0);
+	read_pack(&level_objects, fp, 0);
+	r_read(fp, &saved_file_id, sizeof(saved_file_id));
+	if (new_file_id != saved_file_id) {
+		clean_up("sorry, saved game is not in the same file");
+	}
+	rw_dungeon(fp, 0);
+	r_read(fp, &foods, sizeof(foods));
+	r_read(fp, &rogue, sizeof(fighter));
+	read_pack(&rogue.pack, fp, 1);
+	rw_id(id_potions, fp, POTIONS, 0);
+	rw_id(id_scrolls, fp, SCROLS, 0);
+	rw_id(id_wands, fp, WANDS, 0);
+	rw_id(id_rings, fp, RINGS, 0);
+	r_read(fp, traps, (MAX_TRAPS * sizeof(trap)));
+	r_read(fp, is_wood, (WANDS * sizeof(boolean)));
+	r_read(fp, &cur_room, sizeof(cur_room));
+	rw_rooms(fp, 0);
+	r_read(fp, &being_held, sizeof(being_held));
+	r_read(fp, &bear_trap, sizeof(bear_trap));
+	r_read(fp, &halluc, sizeof(halluc));
+	r_read(fp, &blind, sizeof(blind));
+	r_read(fp, &confused, sizeof(confused));
+	r_read(fp, &levitate, sizeof(levitate));
+	r_read(fp, &haste_self, sizeof(haste_self));
+	r_read(fp, &see_invisible, sizeof(see_invisible));
+	r_read(fp, &detect_monster, sizeof(detect_monster));
+	r_read(fp, &wizard, sizeof(wizard));
+	r_read(fp, &score_only, sizeof(score_only));
+	r_read(fp, &m_moves, sizeof(m_moves));
+	r_read(fp, &saved_time, sizeof(saved_time));
+
+	if (fread(buf, 1, 1, fp) > 0) {
+		clear();
+		clean_up("extra characters in file");
+	}
+
+	md_gfmt(fname, &mod_time);	/* get file modification time */
+
+	if (has_been_touched(&saved_time, &mod_time)) {
+		clear();
+		clean_up("sorry, file has been touched");
+	}
+	if ((!wizard) && !md_df(fname)) {
+		clean_up("cannot delete file");
+	}
+	msg_cleared = 0;
+	ring_stats(0);
+	fclose(fp);
+}
+
+static void
+write_pack(const object *pack, FILE *fp)
+{
+	object t;
+
+	while ((pack = pack->next_object) != NULL) {
+		r_write(fp, pack, sizeof(object));
+	}
+	t.ichar = t.what_is = 0;
+	r_write(fp, &t, sizeof(object));
+}
+
+static void
+read_pack(object *pack, FILE *fp, boolean is_rogue)
+{
+	object read_obj, *new_obj;
+
+	for (;;) {
+		r_read(fp, &read_obj, sizeof(object));
+		if (read_obj.ichar == 0) {
+			pack->next_object = NULL;
+			break;
+		}
+		new_obj = alloc_object();
+		*new_obj = read_obj;
+		if (is_rogue) {
+			if (new_obj->in_use_flags & BEING_WORN) {
+				do_wear(new_obj);
+			} else if (new_obj->in_use_flags & BEING_WIELDED) {
+				do_wield(new_obj);
+			} else if (new_obj->in_use_flags & (ON_EITHER_HAND)) {
+				do_put_on(new_obj,
+					((new_obj->in_use_flags & ON_LEFT_HAND) ? 1 : 0));
+			}
+		}
+		pack->next_object = new_obj;
+		pack = new_obj;
+	}
+}
+
+static void
+rw_dungeon(FILE *fp, boolean rw)
+{
+	short i, j;
+	char buf[DCOLS];
+
+	for (i = 0; i < DROWS; i++) {
+		if (rw) {
+			r_write(fp, dungeon[i], (DCOLS * sizeof(dungeon[0][0])));
+			for (j = 0; j < DCOLS; j++) {
+				buf[j] = mvinch(i, j);
+			}
+			r_write(fp, buf, DCOLS);
+		} else {
+			r_read(fp, dungeon[i], (DCOLS * sizeof(dungeon[0][0])));
+			r_read(fp, buf, DCOLS);
+			for (j = 0; j < DCOLS; j++) {
+				mvaddch(i, j, buf[j]);
+			}
+		}
+	}
+}
+
+static void
+rw_id(struct id id_table[], FILE *fp, int n, boolean wr)
+{
+	int i;
+
+	for (i = 0; i < n; i++) {
+		if (wr) {
+			r_write(fp, &id_table[i].value, sizeof(short));
+			r_write(fp, &id_table[i].id_status,
+				sizeof(unsigned short));
+			write_string(id_table[i].title, fp);
+		} else {
+			r_read(fp, &id_table[i].value, sizeof(short));
+			r_read(fp, &id_table[i].id_status,
+				sizeof(unsigned short));
+			read_string(id_table[i].title, fp, MAX_ID_TITLE_LEN);
+		}
+	}
+}
+
+static void
+write_string(char *s, FILE *fp)
+{
+	short n;
+
+	n = strlen(s) + 1;
+	xxxx(s, n);
+	r_write(fp, &n, sizeof(short));
+	r_write(fp, s, n);
+}
+
+static void
+read_string(char *s, FILE *fp, size_t len)
+{
+	short n;
+
+	r_read(fp, &n, sizeof(short));
+	if (n<=0 || (size_t)(unsigned short)n > len) {
+		clean_up("read_string: corrupt game file");
+	}
+	r_read(fp, s, n);
+	xxxx(s, n);
+	/* ensure null termination */
+	s[n-1] = 0;
+}
+
+static void
+rw_rooms(FILE *fp, boolean rw)
+{
+	short i;
+
+	for (i = 0; i < MAXROOMS; i++) {
+		rw ? r_write(fp, (rooms + i), sizeof(room)) :
+			r_read(fp, (rooms + i), sizeof(room));
+	}
+}
+
+static void
+r_read(FILE *fp, void *buf, size_t n)
+{
+	if (fread(buf, 1, n, fp) != n) {
+		clean_up("fread() failed, don't know why");
+	}
+}
+
+static void
+r_write(FILE *fp, const void *buf, size_t n)
+{
+	if (!write_failed) {
+		if (fwrite(buf, 1, n, fp) != n) {
+			messagef(0, "write() failed, don't know why");
+			sound_bell();
+			write_failed = 1;
+		}
+	}
+}
+
+static boolean
+has_been_touched(const struct rogue_time *saved_time,
+		 const struct rogue_time *mod_time)
+{
+	if (saved_time->year < mod_time->year) {
+		return(1);
+	} else if (saved_time->year > mod_time->year) {
+		return(0);
+	}
+	if (saved_time->month < mod_time->month) {
+		return(1);
+	} else if (saved_time->month > mod_time->month) {
+		return(0);
+	}
+	if (saved_time->day < mod_time->day) {
+		return(1);
+	} else if (saved_time->day > mod_time->day) {
+		return(0);
+	}
+	if (saved_time->hour < mod_time->hour) {
+		return(1);
+	} else if (saved_time->hour > mod_time->hour) {
+		return(0);
+	}
+	if (saved_time->minute < mod_time->minute) {
+		return(1);
+	} else if (saved_time->minute > mod_time->minute) {
+		return(0);
+	}
+	if (saved_time->second < mod_time->second) {
+		return(1);
+	}
+	return(0);
+}