xref: /netbsd/games/rogue/init.c (revision bf9ec67e)
1 /*	$NetBSD: init.c,v 1.12 2001/12/06 12:19:44 blymn Exp $	*/
2 
3 /*
4  * Copyright (c) 1988, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Timothy C. Stoehr.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *	This product includes software developed by the University of
21  *	California, Berkeley and its contributors.
22  * 4. Neither the name of the University nor the names of its contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36  * SUCH DAMAGE.
37  */
38 
39 #include <sys/cdefs.h>
40 #ifndef lint
41 #if 0
42 static char sccsid[] = "@(#)init.c	8.1 (Berkeley) 5/31/93";
43 #else
44 __RCSID("$NetBSD: init.c,v 1.12 2001/12/06 12:19:44 blymn Exp $");
45 #endif
46 #endif /* not lint */
47 
48 /*
49  * init.c
50  *
51  * This source herein may be modified and/or distributed by anybody who
52  * so desires, with the following restrictions:
53  *    1.)  No portion of this notice shall be removed.
54  *    2.)  Credit shall not be taken for the creation of this source.
55  *    3.)  This code is not to be traded, sold, or used for personal
56  *         gain or profit.
57  *
58  */
59 
60 #include <stdlib.h>
61 #include <fcntl.h>
62 
63 #include "rogue.h"
64 
65 char login_name[MAX_OPT_LEN];
66 char *nick_name = (char *) 0;
67 char *rest_file = 0;
68 boolean cant_int = 0;
69 boolean did_int = 0;
70 boolean score_only;
71 boolean init_curses = 0;
72 boolean save_is_interactive = 1;
73 boolean ask_quit = 1;
74 boolean no_skull = 0;
75 boolean passgo = 0;
76 const char *error_file = "rogue.esave";
77 const char *byebye_string = "Okay, bye bye!";
78 gid_t gid, egid;
79 
80 int
81 init(argc, argv)
82 	int argc;
83 	char *argv[];
84 {
85 	const char *pn;
86 	int seed;
87 	int fd;
88 
89 	gid = getgid();
90 	egid = getegid();
91 	setegid(gid);
92 	/* Check for dirty tricks with closed fds 0, 1, 2 */
93 	fd = open("/dev/null", O_RDONLY);
94 	if (fd < 3)
95 		exit(1);
96 	close(fd);
97 
98 	seed = 0;
99 	pn = md_gln();
100 	if ((!pn) || (strlen(pn) >= MAX_OPT_LEN)) {
101 		clean_up("Hey!  Who are you?");
102 	}
103 	(void) strcpy(login_name, pn);
104 
105 	do_args(argc, argv);
106 	do_opts();
107 
108 	if (!score_only && !rest_file) {
109 		printf("Hello %s, just a moment while I dig the dungeon...",
110 			nick_name);
111 		fflush(stdout);
112 	}
113 
114 	initscr();
115 	if ((LINES < DROWS) || (COLS < DCOLS)) {
116 		clean_up("must be played on 24 x 80 screen");
117 	}
118 	start_window();
119 	init_curses = 1;
120 
121 	md_heed_signals();
122 
123 	if (score_only) {
124 		put_scores((object *) 0, 0);
125 	}
126 	seed = md_gseed();
127 	(void) srrandom(seed);
128 	if (rest_file) {
129 		restore(rest_file);
130 		return(1);
131 	}
132 	mix_colors();
133 	get_wand_and_ring_materials();
134 	make_scroll_titles();
135 
136 	level_objects.next_object = (object *) 0;
137 	level_monsters.next_monster = (object *) 0;
138 	player_init();
139 	ring_stats(0);
140 	return(0);
141 }
142 
143 void
144 player_init()
145 {
146 	object *obj;
147 
148 	rogue.pack.next_object = (object *) 0;
149 
150 	obj = alloc_object();
151 	get_food(obj, 1);
152 	(void) add_to_pack(obj, &rogue.pack, 1);
153 
154 	obj = alloc_object();		/* initial armor */
155 	obj->what_is = ARMOR;
156 	obj->which_kind = RINGMAIL;
157 	obj->class = RINGMAIL+2;
158 	obj->is_protected = 0;
159 	obj->d_enchant = 1;
160 	(void) add_to_pack(obj, &rogue.pack, 1);
161 	do_wear(obj);
162 
163 	obj = alloc_object();		/* initial weapons */
164 	obj->what_is = WEAPON;
165 	obj->which_kind = MACE;
166 	obj->damage = "2d3";
167 	obj->hit_enchant = obj->d_enchant = 1;
168 	obj->identified = 1;
169 	(void) add_to_pack(obj, &rogue.pack, 1);
170 	do_wield(obj);
171 
172 	obj = alloc_object();
173 	obj->what_is = WEAPON;
174 	obj->which_kind = BOW;
175 	obj->damage = "1d2";
176 	obj->hit_enchant = 1;
177 	obj->d_enchant = 0;
178 	obj->identified = 1;
179 	(void) add_to_pack(obj, &rogue.pack, 1);
180 
181 	obj = alloc_object();
182 	obj->what_is = WEAPON;
183 	obj->which_kind = ARROW;
184 	obj->quantity = get_rand(25, 35);
185 	obj->damage = "1d2";
186 	obj->hit_enchant = 0;
187 	obj->d_enchant = 0;
188 	obj->identified = 1;
189 	(void) add_to_pack(obj, &rogue.pack, 1);
190 }
191 
192 void
193 clean_up(estr)
194 	const char *estr;
195 {
196 	if (save_is_interactive) {
197 		if (init_curses) {
198 			move(DROWS-1, 0);
199 			refresh();
200 			stop_window();
201 		}
202 		printf("\n%s\n", estr);
203 	}
204 	md_exit(0);
205 }
206 
207 void
208 start_window()
209 {
210 	cbreak();
211 	noecho();
212 #ifndef BAD_NONL
213 	nonl();
214 #endif
215 }
216 
217 void
218 stop_window()
219 {
220 	endwin();
221 }
222 
223 void
224 byebye(dummy)
225 	int dummy __attribute__((__unused__));
226 {
227 	md_ignore_signals();
228 	if (ask_quit) {
229 		quit(1);
230 	} else {
231 		clean_up(byebye_string);
232 	}
233 	md_heed_signals();
234 }
235 
236 void
237 onintr(dummy)
238 	int dummy __attribute__((__unused__));
239 {
240 	md_ignore_signals();
241 	if (cant_int) {
242 		did_int = 1;
243 	} else {
244 		check_message();
245 		message("interrupt", 1);
246 	}
247 	md_heed_signals();
248 }
249 
250 void
251 error_save(dummy)
252 	int dummy __attribute__((__unused__));
253 {
254 	save_is_interactive = 0;
255 	save_into_file(error_file);
256 	clean_up("");
257 }
258 
259 void
260 do_args(argc, argv)
261 	int argc;
262 	char *argv[];
263 {
264 	short i, j;
265 
266 	for (i = 1; i < argc; i++) {
267 		if (argv[i][0] == '-') {
268 			for (j = 1; argv[i][j]; j++) {
269 				switch(argv[i][j]) {
270 				case 's':
271 					score_only = 1;
272 					break;
273 				}
274 			}
275 		} else {
276 			rest_file = argv[i];
277 		}
278 	}
279 }
280 
281 void
282 do_opts()
283 {
284 	char *eptr;
285 
286 	if ((eptr = md_getenv("ROGUEOPTS")) != NULL) {
287 		for (;;) {
288 			while ((*eptr) == ' ') {
289 				eptr++;
290 			}
291 			if (!(*eptr)) {
292 				break;
293 			}
294 			if (!strncmp(eptr, "fruit=", 6)) {
295 				eptr += 6;
296 				env_get_value(&fruit, eptr, 1);
297 			} else if (!strncmp(eptr, "file=", 5)) {
298 				eptr += 5;
299 				env_get_value(&save_file, eptr, 0);
300 			} else if (!strncmp(eptr, "jump", 4)) {
301 				jump = 1;
302 			} else if (!strncmp(eptr, "name=", 5)) {
303 				eptr += 5;
304 				env_get_value(&nick_name, eptr, 0);
305 			} else if (!strncmp(eptr, "noaskquit", 9)) {
306 				ask_quit = 0;
307 			} else if (!strncmp(eptr, "noskull", 5) ||
308 					!strncmp(eptr,"notomb", 6)) {
309 				no_skull = 1;
310 			} else if (!strncmp(eptr, "passgo", 5)) {
311 				passgo = 1;
312 			}
313 			while ((*eptr) && (*eptr != ',')) {
314 				eptr++;
315 			}
316 			if (!(*(eptr++))) {
317 				break;
318 			}
319 		}
320 	}
321 	/* If some strings have not been set through ROGUEOPTS, assign defaults
322 	 * to them so that the options editor has data to work with.
323 	 */
324 	init_str(&nick_name, login_name);
325 	init_str(&save_file, "rogue.save");
326 	init_str(&fruit, "slime-mold");
327 }
328 
329 void
330 env_get_value(s, e, add_blank)
331 	char **s, *e;
332 	boolean add_blank;
333 {
334 	short i = 0;
335 	const char *t;
336 
337 	t = e;
338 
339 	while ((*e) && (*e != ',')) {
340 		if (*e == ':') {
341 			*e = ';';		/* ':' reserved for score file purposes */
342 		}
343 		e++;
344 		if (++i >= MAX_OPT_LEN) {
345 			break;
346 		}
347 	}
348 	*s = md_malloc(MAX_OPT_LEN + 2);
349 	if (*s == NULL)
350 		clean_up("out of memory");
351 	(void) strncpy(*s, t, i);
352 	if (add_blank) {
353 		(*s)[i++] = ' ';
354 	}
355 	(*s)[i] = '\0';
356 }
357 
358 void
359 init_str(str, dflt)
360 	char **str;
361 	const char *dflt;
362 {
363 	if (!(*str)) {
364 		*str = md_malloc(MAX_OPT_LEN + 2);
365 		if (*str == NULL)
366 			clean_up("out of memory");
367 		(void) strcpy(*str, dflt);
368 	}
369 }
370