games/rogue/init.c

   1 /*      $NetBSD: init.c,v 1.17 2008/01/14 03:50:01 dholland 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. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 #ifndef lint
  37 #if 0
  38 static char sccsid[] = "@(#)init.c      8.1 (Berkeley) 5/31/93";
  39 #else
  40 __RCSID("$NetBSD: init.c,v 1.17 2008/01/14 03:50:01 dholland Exp $");
  41 #endif
  42 #endif /* not lint */
  43
  44 /*
  45  * init.c
  46  *
  47  * This source herein may be modified and/or distributed by anybody who
  48  * so desires, with the following restrictions:
  49  *    1.)  No portion of this notice shall be removed.
  50  *    2.)  Credit shall not be taken for the creation of this source.
  51  *    3.)  This code is not to be traded, sold, or used for personal
  52  *         gain or profit.
  53  *
  54  */
  55
  56 #include <stdlib.h>
  57 #include <fcntl.h>
  58
  59 #include "rogue.h"
  60
  61 static void do_args(int, char **);
  62 static void do_opts(void);
  63 static void env_get_value(char **, char *, boolean);
  64 static void init_str(char **, const char *);
  65 static void player_init(void);
  66
  67 static char *rest_file = NULL;
  68 static boolean init_curses = 0;
  69
  70 char login_name[MAX_OPT_LEN];
  71 char *nick_name = NULL;
  72 boolean cant_int = 0;
  73 boolean did_int = 0;
  74 boolean score_only;
  75 boolean save_is_interactive = 1;
  76 boolean ask_quit = 1;
  77 boolean no_skull = 0;
  78 boolean passgo = 0;
  79 const char *error_file = "rogue.esave";
  80 const char *byebye_string = "Okay, bye bye!";
  81 gid_t gid, egid;
  82
  83 int
  84 init(int argc, char *argv[])
  85 {
  86         const char *pn;
  87         int seed;
  88         int fd;
  89
  90         gid = getgid();
  91         egid = getegid();
  92         setegid(gid);
  93         /* Check for dirty tricks with closed fds 0, 1, 2 */
  94         fd = open("/dev/null", O_RDONLY);
  95         if (fd < 3)
  96                 exit(1);
  97         close(fd);
  98
  99         seed = 0;
 100         pn = md_gln();
 101         if ((!pn) || (strlen(pn) >= MAX_OPT_LEN)) {
 102                 clean_up("Hey!  Who are you?");
 103         }
 104         /* LOGIN_NAME_SIZE == MAX_OPT_LEN now, but just in case... */
 105         (void)strlcpy(login_name, pn, sizeof(login_name));
 106
 107         do_args(argc, argv);
 108         do_opts();
 109
 110         if (!score_only && !rest_file) {
 111                 printf("Hello %s, just a moment while I dig the dungeon...",
 112                         nick_name);
 113                 fflush(stdout);
 114         }
 115
 116         if (!initscr()) {
 117                 fprintf(stderr, "couldn't initialize screen\n");
 118                 exit (0);
 119         }
 120         if ((LINES < DROWS) || (COLS < DCOLS)) {
 121                 clean_up("must be played on at least 80 x 24 screen");
 122         }
 123         start_window();
 124         init_curses = 1;
 125
 126         md_heed_signals();
 127
 128         if (score_only) {
 129                 put_scores(NULL, 0);
 130         }
 131         seed = md_gseed();
 132         (void)srrandom(seed);
 133         if (rest_file) {
 134                 restore(rest_file);
 135                 return(1);
 136         }
 137         mix_colors();
 138         get_wand_and_ring_materials();
 139         make_scroll_titles();
 140
 141         level_objects.next_object = NULL;
 142         level_monsters.next_monster = NULL;
 143         player_init();
 144         ring_stats(0);
 145         return(0);
 146 }
 147
 148 static void
 149 player_init(void)
 150 {
 151         object *obj;
 152
 153         rogue.pack.next_object = NULL;
 154
 155         obj = alloc_object();
 156         get_food(obj, 1);
 157         (void)add_to_pack(obj, &rogue.pack, 1);
 158
 159         obj = alloc_object();           /* initial armor */
 160         obj->what_is = ARMOR;
 161         obj->which_kind = RINGMAIL;
 162         obj->class = RINGMAIL+2;
 163         obj->is_protected = 0;
 164         obj->d_enchant = 1;
 165         (void)add_to_pack(obj, &rogue.pack, 1);
 166         do_wear(obj);
 167
 168         obj = alloc_object();           /* initial weapons */
 169         obj->what_is = WEAPON;
 170         obj->which_kind = MACE;
 171         obj->damage = "2d3";
 172         obj->hit_enchant = obj->d_enchant = 1;
 173         obj->identified = 1;
 174         (void)add_to_pack(obj, &rogue.pack, 1);
 175         do_wield(obj);
 176
 177         obj = alloc_object();
 178         obj->what_is = WEAPON;
 179         obj->which_kind = BOW;
 180         obj->damage = "1d2";
 181         obj->hit_enchant = 1;
 182         obj->d_enchant = 0;
 183         obj->identified = 1;
 184         (void)add_to_pack(obj, &rogue.pack, 1);
 185
 186         obj = alloc_object();
 187         obj->what_is = WEAPON;
 188         obj->which_kind = ARROW;
 189         obj->quantity = get_rand(25, 35);
 190         obj->damage = "1d2";
 191         obj->hit_enchant = 0;
 192         obj->d_enchant = 0;
 193         obj->identified = 1;
 194         (void)add_to_pack(obj, &rogue.pack, 1);
 195 }
 196
 197 void
 198 clean_up(const char *estr)
 199 {
 200         if (save_is_interactive) {
 201                 if (init_curses) {
 202                         move(DROWS-1, 0);
 203                         refresh();
 204                         stop_window();
 205                 }
 206                 printf("\n%s\n", estr);
 207         }
 208         md_exit(0);
 209 }
 210
 211 void
 212 start_window(void)
 213 {
 214         cbreak();
 215         noecho();
 216 #ifndef BAD_NONL
 217         nonl();
 218 #endif
 219 }
 220
 221 void
 222 stop_window(void)
 223 {
 224         endwin();
 225 }
 226
 227 void
 228 byebye(int dummy __unused)
 229 {
 230         md_ignore_signals();
 231         if (ask_quit) {
 232                 quit(1);
 233         } else {
 234                 clean_up(byebye_string);
 235         }
 236         md_heed_signals();
 237 }
 238
 239 void
 240 onintr(int dummy __unused)
 241 {
 242         md_ignore_signals();
 243         if (cant_int) {
 244                 did_int = 1;
 245         } else {
 246                 check_message();
 247                 messagef(1, "interrupt");
 248         }
 249         md_heed_signals();
 250 }
 251
 252 void
 253 error_save(int dummy __unused)
 254 {
 255         save_is_interactive = 0;
 256         save_into_file(error_file);
 257         clean_up("");
 258 }
 259
 260 static void
 261 do_args(int argc, char *argv[])
 262 {
 263         int i, j;
 264
 265         for (i = 1; i < argc; i++) {
 266                 if (argv[i][0] == '-') {
 267                         for (j = 1; argv[i][j]; j++) {
 268                                 switch(argv[i][j]) {
 269                                 case 's':
 270                                         score_only = 1;
 271                                         break;
 272                                 }
 273                         }
 274                 } else {
 275                         rest_file = argv[i];
 276                 }
 277         }
 278 }
 279
 280 static void
 281 do_opts(void)
 282 {
 283         char *eptr;
 284
 285         if ((eptr = md_getenv("ROGUEOPTS")) != NULL) {
 286                 for (;;) {
 287                         while ((*eptr) == ' ') {
 288                                 eptr++;
 289                         }
 290                         if (!(*eptr)) {
 291                                 break;
 292                         }
 293                         if (!strncmp(eptr, "fruit=", 6)) {
 294                                 eptr += 6;
 295                                 env_get_value(&fruit, eptr, 1);
 296                         } else if (!strncmp(eptr, "file=", 5)) {
 297                                 eptr += 5;
 298                                 env_get_value(&save_file, eptr, 0);
 299                         } else if (!strncmp(eptr, "jump", 4)) {
 300                                 jump = 1;
 301                         } else if (!strncmp(eptr, "name=", 5)) {
 302                                 eptr += 5;
 303                                 env_get_value(&nick_name, eptr, 0);
 304                         } else if (!strncmp(eptr, "noaskquit", 9)) {
 305                                 ask_quit = 0;
 306                         } else if (!strncmp(eptr, "noskull", 5) ||
 307                                         !strncmp(eptr,"notomb", 6)) {
 308                                 no_skull = 1;
 309                         } else if (!strncmp(eptr, "passgo", 5)) {
 310                                 passgo = 1;
 311                         }
 312                         while ((*eptr) && (*eptr != ',')) {
 313                                 eptr++;
 314                         }
 315                         if (!(*(eptr++))) {
 316                                 break;
 317                         }
 318                 }
 319         }
 320         /* If some strings have not been set through ROGUEOPTS, assign defaults
 321          * to them so that the options editor has data to work with.
 322          */
 323         init_str(&nick_name, login_name);
 324         init_str(&save_file, "rogue.save");
 325         init_str(&fruit, "slime-mold");
 326 }
 327
 328 static void
 329 env_get_value(char **s, char *e, boolean add_blank)
 330 {
 331         short i = 0;
 332         const char *t;
 333
 334         t = e;
 335
 336         while ((*e) && (*e != ',')) {
 337                 if (*e == ':') {
 338                         *e = ';';               /* ':' reserved for score file purposes */
 339                 }
 340                 e++;
 341                 if (++i >= MAX_OPT_LEN) {
 342                         break;
 343                 }
 344         }
 345         /* note: edit_opts() in room.c depends on this being the right size */
 346         *s = md_malloc(MAX_OPT_LEN + 2);
 347         if (*s == NULL)
 348                 clean_up("out of memory");
 349         (void)strncpy(*s, t, i);
 350         if (add_blank) {
 351                 (*s)[i++] = ' ';
 352         }
 353         (*s)[i] = '\0';
 354 }
 355
 356 static void
 357 init_str(char **str, const char *dflt)
 358 {
 359         if (!(*str)) {
 360                 /* note: edit_opts() in room.c depends on this size */
 361                 *str = md_malloc(MAX_OPT_LEN + 2);
 362                 if (*str == NULL)
 363                         clean_up("out of memory");
 364                 (void)strlcpy(*str, dflt, MAX_OPT_LEN + 2);
 365         }
 366 }