Home | History | Annotate | Line # | Download | only in robots
      1 /*	$NetBSD: main.c,v 1.34 2022/06/27 18:48:49 christos 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. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 #ifndef lint
     34 __COPYRIGHT("@(#) Copyright (c) 1980, 1993\
     35  The Regents of the University of California.  All rights reserved.");
     36 #endif /* not lint */
     37 
     38 #ifndef lint
     39 #if 0
     40 static char sccsid[] = "@(#)main.c	8.1 (Berkeley) 5/31/93";
     41 #else
     42 __RCSID("$NetBSD: main.c,v 1.34 2022/06/27 18:48:49 christos Exp $");
     43 #endif
     44 #endif /* not lint */
     45 
     46 #include <ctype.h>
     47 #include <curses.h>
     48 #include <string.h>
     49 #include <err.h>
     50 #include <errno.h>
     51 #include <fcntl.h>
     52 #include <signal.h>
     53 #include <stdlib.h>
     54 #include <time.h>
     55 #include <unistd.h>
     56 #include "robots.h"
     57 
     58 extern const char *Scorefile;
     59 extern int Max_per_uid;
     60 
     61 static bool another(void);
     62 
     63 int
     64 main(int argc, char **argv)
     65 {
     66 	const char *word;
     67 	bool show_only;
     68 	int score_wfd; /* high score writable file descriptor */
     69 	int score_err = 0; /* hold errno from score file open */
     70 	int maximum = 0;
     71 	int ch, i;
     72 
     73 	score_wfd = open(Scorefile, O_RDWR);
     74 	if (score_wfd < 0)
     75 		score_err = errno;
     76 	else if (score_wfd < 3)
     77 		exit(1);
     78 
     79 	/* Revoke setgid privileges */
     80 	setgid(getgid());
     81 
     82 	show_only = false;
     83 	Num_games = 1;
     84 
     85 	while ((ch = getopt(argc, argv, "Aajnrst")) != -1) {
     86 		switch (ch) {
     87 		    case 'A':
     88 			Auto_bot = true;
     89 			break;
     90 		    case 'a':
     91 			Start_level = 4;
     92 			break;
     93 		    case 'j':
     94 			Jump = true;
     95 			break;
     96 		    case 'n':
     97 			Num_games++;
     98 			break;
     99 		    case 'r':
    100 			Real_time = true;
    101 			break;
    102 		    case 's':
    103 			show_only = true;
    104 			break;
    105 		    case 't':
    106 			Teleport = true;
    107 			break;
    108 		    default:
    109 			errx(1,
    110 			    "Usage: robots [-Aajnrst] [maximum] [scorefile]");
    111 			break;
    112 		}
    113 	}
    114 
    115 	for (i = optind; i < argc; i++) {
    116 		word = argv[i];
    117 		if (isdigit((unsigned char)word[0])) {
    118 			maximum = atoi(word);
    119 		} else {
    120 			Scorefile = word;
    121 			Max_per_uid = maximum;
    122 			if (score_wfd >= 0)
    123 				close(score_wfd);
    124 			score_wfd = open(Scorefile, O_RDWR);
    125 			if (score_wfd < 0)
    126 				score_err = errno;
    127 #ifdef FANCY
    128 			word = strrchr(Scorefile, '/');
    129 			if (word == NULL)
    130 				word = Scorefile;
    131 			if (strcmp(word, "pattern_roll") == 0)
    132 				Pattern_roll = true;
    133 			else if (strcmp(word, "stand_still") == 0)
    134 				Stand_still = true;
    135 			if (Pattern_roll || Stand_still)
    136 				Teleport = true;
    137 #endif
    138 		}
    139 	}
    140 
    141 	if (show_only) {
    142 		show_score();
    143 		exit(0);
    144 		/* NOTREACHED */
    145 	}
    146 
    147 	if (score_wfd < 0) {
    148 		errno = score_err;
    149 		warn("%s", Scorefile);
    150 		warnx("High scores will not be recorded!");
    151 		sleep(2);
    152 	}
    153 
    154 	if (!initscr())
    155 		errx(0, "couldn't initialize screen");
    156 	signal(SIGINT, quit);
    157 	cbreak();
    158 	noecho();
    159 	nonl();
    160 	if (LINES != Y_SIZE || COLS != X_SIZE) {
    161 		if (LINES < Y_SIZE || COLS < X_SIZE) {
    162 			endwin();
    163 			printf("Need at least a %dx%d screen\n",
    164 			    Y_SIZE, X_SIZE);
    165 			exit(1);
    166 		}
    167 		delwin(stdscr);
    168 		stdscr = newwin(Y_SIZE, X_SIZE, 0, 0);
    169 	}
    170 
    171 	if (Real_time)
    172 		signal(SIGALRM, move_robots);
    173 	do {
    174 		while (Num_games--) {
    175 			init_field();
    176 			for (Level = Start_level; !Dead; Level++) {
    177 				make_level();
    178 				play_level();
    179 				if (Auto_bot)
    180 					sleep(1);
    181 			}
    182 			move(My_pos.y, My_pos.x);
    183 			printw("AARRrrgghhhh....");
    184 			refresh();
    185 			if (Auto_bot)
    186 				sleep(1);
    187 			score(score_wfd);
    188 			if (Auto_bot)
    189 				sleep(1);
    190 			refresh();
    191 		}
    192 		Num_games = 1;
    193 	} while (!Auto_bot && another());
    194 	quit(0);
    195 	/* NOTREACHED */
    196 	return(0);
    197 }
    198 
    199 /*
    200  * quit:
    201  *	Leave the program elegantly.
    202  */
    203 void
    204 quit(int dummy __unused)
    205 {
    206 	endwin();
    207 	exit(0);
    208 	/* NOTREACHED */
    209 }
    210 
    211 /*
    212  * another:
    213  *	See if another game is desired
    214  */
    215 static bool
    216 another(void)
    217 {
    218 	int y;
    219 
    220 #ifdef FANCY
    221 	if ((Stand_still || Pattern_roll) && !Newscore)
    222 		return true;
    223 #endif
    224 
    225 	if (query("Another game?")) {
    226 		if (Full_clear) {
    227 			for (y = 1; y <= Num_scores; y++) {
    228 				move(y, 1);
    229 				clrtoeol();
    230 			}
    231 			refresh();
    232 		}
    233 		return true;
    234 	}
    235 	return false;
    236 }
    237