robots/main.c

   1 /*      $NetBSD: main.c,v 1.13 2000/01/19 19:02:27 jsm Exp $    */
   2
   3 /*
   4  * Copyright (c) 1980, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by the University of
  18  *      California, Berkeley and its contributors.
  19  * 4. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include <sys/cdefs.h>
  37 #ifndef lint
  38 __COPYRIGHT("@(#) Copyright (c) 1980, 1993\n\
  39         The Regents of the University of California.  All rights reserved.\n");
  40 #endif /* not lint */
  41
  42 #ifndef lint
  43 #if 0
  44 static char sccsid[] = "@(#)main.c      8.1 (Berkeley) 5/31/93";
  45 #else
  46 __RCSID("$NetBSD: main.c,v 1.13 2000/01/19 19:02:27 jsm Exp $");
  47 #endif
  48 #endif /* not lint */
  49
  50 # include       "robots.h"
  51
  52 int main __P((int, char **));
  53
  54 int
  55 main(ac, av)
  56         int     ac;
  57         char    **av;
  58 {
  59         const char      *sp;
  60         bool    bad_arg;
  61         bool    show_only;
  62         extern const char       *Scorefile;
  63         extern int      Max_per_uid;
  64         int             score_wfd; /* high score writable file descriptor */
  65         int             score_err = 0; /* hold errno from score file open */
  66
  67         score_wfd = open(Scorefile, O_RDWR);
  68         if (score_wfd < 0)
  69                 score_err = errno;
  70         else if (score_wfd < 3)
  71                 exit(1);
  72
  73         /* Revoke setgid privileges */
  74         setregid(getgid(), getgid());
  75
  76         show_only = FALSE;
  77         Num_games = 1;
  78         if (ac > 1) {
  79                 bad_arg = FALSE;
  80                 for (++av; ac > 1 && *av[0]; av++, ac--)
  81                         if (av[0][0] != '-')
  82                                 if (isdigit(av[0][0]))
  83                                         Max_per_uid = atoi(av[0]);
  84                                 else {
  85                                         Scorefile = av[0];
  86                                         if (score_wfd >= 0)
  87                                                 close(score_wfd);
  88                                         score_wfd = open(Scorefile, O_RDWR);
  89                                         if (score_wfd < 0)
  90                                                 score_err = errno;
  91 # ifdef FANCY
  92                                         sp = strrchr(Scorefile, '/');
  93                                         if (sp == NULL)
  94                                                 sp = Scorefile;
  95                                         if (strcmp(sp, "pattern_roll") == 0)
  96                                                 Pattern_roll = TRUE;
  97                                         else if (strcmp(sp, "stand_still") == 0)
  98                                                 Stand_still = TRUE;
  99                                         if (Pattern_roll || Stand_still)
 100                                                 Teleport = TRUE;
 101 # endif
 102                                 }
 103                         else
 104                                 for (sp = &av[0][1]; *sp; sp++)
 105                                         switch (*sp) {
 106                                           case 'A':
 107                                                 Auto_bot = TRUE;
 108                                                 break;
 109                                           case 's':
 110                                                 show_only = TRUE;
 111                                                 break;
 112                                           case 'r':
 113                                                 Real_time = TRUE;
 114                                                 break;
 115                                           case 'a':
 116                                                 Start_level = 4;
 117                                                 break;
 118                                           case 'n':
 119                                                 Num_games++;
 120                                                 break;
 121                                           case 'j':
 122                                                 Jump = TRUE;
 123                                                 break;
 124                                           case 't':
 125                                                 Teleport = TRUE;
 126                                                 break;
 127
 128                                           default:
 129                                                 fprintf(stderr, "robots: uknown option: %c\n", *sp);
 130                                                 bad_arg = TRUE;
 131                                                 break;
 132                                         }
 133                 if (bad_arg) {
 134                         exit(1);
 135                         /* NOTREACHED */
 136                 }
 137         }
 138
 139         if (show_only) {
 140                 show_score();
 141                 exit(0);
 142                 /* NOTREACHED */
 143         }
 144
 145         if (score_wfd < 0) {
 146                 errno = score_err;
 147                 warn("%s", Scorefile);
 148                 warnx("High scores will not be recorded!");
 149                 sleep(2);
 150         }
 151
 152         initscr();
 153         signal(SIGINT, quit);
 154         crmode();
 155         noecho();
 156         nonl();
 157         if (LINES != Y_SIZE || COLS != X_SIZE) {
 158                 if (LINES < Y_SIZE || COLS < X_SIZE) {
 159                         endwin();
 160                         printf("Need at least a %dx%d screen\n",
 161                             Y_SIZE, X_SIZE);
 162                         exit(1);
 163                 }
 164                 delwin(stdscr);
 165                 stdscr = newwin(Y_SIZE, X_SIZE, 0, 0);
 166         }
 167
 168         srand(getpid());
 169         if (Real_time)
 170                 signal(SIGALRM, move_robots);
 171         do {
 172                 while (Num_games--) {
 173                         init_field();
 174                         for (Level = Start_level; !Dead; Level++) {
 175                                 make_level();
 176                                 play_level();
 177                                 if (Auto_bot)
 178                                         sleep(1);
 179                         }
 180                         move(My_pos.y, My_pos.x);
 181                         printw("AARRrrgghhhh....");
 182                         refresh();
 183                         if (Auto_bot)
 184                                 sleep(1);
 185                         score(score_wfd);
 186                         if (Auto_bot)
 187                                 sleep(1);
 188                         refresh();
 189                 }
 190         } while (!Auto_bot && another());
 191         quit(0);
 192         /* NOTREACHED */
 193         return(0);
 194 }
 195
 196 /*
 197  * quit:
 198  *      Leave the program elegantly.
 199  */
 200 void
 201 quit(dummy)
 202         int dummy __attribute__((__unused__));
 203 {
 204         endwin();
 205         exit(0);
 206         /* NOTREACHED */
 207 }
 208
 209 /*
 210  * another:
 211  *      See if another game is desired
 212  */
 213 bool
 214 another()
 215 {
 216         int     y;
 217
 218 #ifdef  FANCY
 219         if ((Stand_still || Pattern_roll) && !Newscore)
 220                 return TRUE;
 221 #endif
 222
 223         if (query("Another game?")) {
 224                 if (Full_clear) {
 225                         for (y = 1; y <= Num_scores; y++) {
 226                                 move(y, 1);
 227                                 clrtoeol();
 228                         }
 229                         refresh();
 230                 }
 231                 return TRUE;
 232         }
 233         return FALSE;
 234 }