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graphics.c revision 1.8 
      1 /*	$NetBSD: graphics.c,v 1.8 1999/07/28 02:01:30 hubertf Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1990, 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  * Ed James.
      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 /*
     40  * Copyright (c) 1987 by Ed James, UC Berkeley.  All rights reserved.
     41  *
     42  * Copy permission is hereby granted provided that this notice is
     43  * retained on all partial or complete copies.
     44  *
     45  * For more info on this and all of my stuff, mail edjames (at) berkeley.edu.
     46  */
     47 
     48 #include <sys/cdefs.h>
     49 #ifndef lint
     50 #if 0
     51 static char sccsid[] = "@(#)graphics.c	8.1 (Berkeley) 5/31/93";
     52 #else
     53 __RCSID("$NetBSD: graphics.c,v 1.8 1999/07/28 02:01:30 hubertf Exp $");
     54 #endif
     55 #endif /* not lint */
     56 
     57 #include "include.h"
     58 
     59 #define C_TOPBOTTOM		'-'
     60 #define C_LEFTRIGHT		'|'
     61 #define C_AIRPORT		'='
     62 #define C_LINE			'+'
     63 #define C_BACKROUND		'.'
     64 #define C_BEACON		'*'
     65 #define C_CREDIT		'*'
     66 
     67 WINDOW	*radar, *cleanradar, *credit, *input, *planes;
     68 
     69 int
     70 getAChar()
     71 {
     72 	int c;
     73 
     74 	errno = 0;
     75 	while ((c = getchar()) == -1 && errno == EINTR) {
     76 		errno = 0;
     77 		clearerr(stdin);
     78 	}
     79 	return(c);
     80 }
     81 
     82 void
     83 erase_all()
     84 {
     85 	PLANE	*pp;
     86 
     87 	for (pp = air.head; pp != NULL; pp = pp->next) {
     88 		wmove(cleanradar, pp->ypos, pp->xpos * 2);
     89 		wmove(radar, pp->ypos, pp->xpos * 2);
     90 		waddch(radar, winch(cleanradar));
     91 		wmove(cleanradar, pp->ypos, pp->xpos * 2 + 1);
     92 		wmove(radar, pp->ypos, pp->xpos * 2 + 1);
     93 		waddch(radar, winch(cleanradar));
     94 	}
     95 }
     96 
     97 void
     98 draw_all()
     99 {
    100 	PLANE	*pp;
    101 
    102 	for (pp = air.head; pp != NULL; pp = pp->next) {
    103 		if (pp->status == S_MARKED)
    104 			wstandout(radar);
    105 		wmove(radar, pp->ypos, pp->xpos * 2);
    106 		waddch(radar, name(pp));
    107 		waddch(radar, '0' + pp->altitude);
    108 		if (pp->status == S_MARKED)
    109 			wstandend(radar);
    110 	}
    111 	wrefresh(radar);
    112 	planewin();
    113 	wrefresh(input);		/* return cursor */
    114 	fflush(stdout);
    115 }
    116 
    117 void
    118 init_gr()
    119 {
    120 	static char	buffer[BUFSIZ];
    121 
    122 	initscr();
    123 	setbuf(stdout, buffer);
    124 	input = newwin(INPUT_LINES, COLS - PLANE_COLS, LINES - INPUT_LINES, 0);
    125 	credit = newwin(INPUT_LINES, PLANE_COLS, LINES - INPUT_LINES,
    126 		COLS - PLANE_COLS);
    127 	planes = newwin(LINES - INPUT_LINES, PLANE_COLS, 0, COLS - PLANE_COLS);
    128 }
    129 
    130 void
    131 setup_screen(scp)
    132 	const C_SCREEN	*scp;
    133 {
    134 	int	i, j;
    135 	char	str[3];
    136 	const char *airstr;
    137 
    138 	str[2] = '\0';
    139 
    140 	if (radar != NULL)
    141 		delwin(radar);
    142 	radar = newwin(scp->height, scp->width * 2, 0, 0);
    143 
    144 	if (cleanradar != NULL)
    145 		delwin(cleanradar);
    146 	cleanradar = newwin(scp->height, scp->width * 2, 0, 0);
    147 
    148 	/* minus one here to prevent a scroll */
    149 	for (i = 0; i < PLANE_COLS - 1; i++) {
    150 		wmove(credit, 0, i);
    151 		waddch(credit, C_CREDIT);
    152 		wmove(credit, INPUT_LINES - 1, i);
    153 		waddch(credit, C_CREDIT);
    154 	}
    155 	wmove(credit, INPUT_LINES / 2, 1);
    156 	waddstr(credit, AUTHOR_STR);
    157 
    158 	for (i = 1; i < scp->height - 1; i++) {
    159 		for (j = 1; j < scp->width - 1; j++) {
    160 			wmove(radar, i, j * 2);
    161 			waddch(radar, C_BACKROUND);
    162 		}
    163 	}
    164 
    165 	/*
    166 	 * Draw the lines first, since people like to draw lines
    167 	 * through beacons and exit points.
    168 	 */
    169 	str[0] = C_LINE;
    170 	for (i = 0; i < scp->num_lines; i++) {
    171 		str[1] = ' ';
    172 		draw_line(radar, scp->line[i].p1.x, scp->line[i].p1.y,
    173 			scp->line[i].p2.x, scp->line[i].p2.y, str);
    174 	}
    175 
    176 	str[0] = C_TOPBOTTOM;
    177 	str[1] = C_TOPBOTTOM;
    178 	wmove(radar, 0, 0);
    179 	for (i = 0; i < scp->width - 1; i++)
    180 		waddstr(radar, str);
    181 	waddch(radar, C_TOPBOTTOM);
    182 
    183 	str[0] = C_TOPBOTTOM;
    184 	str[1] = C_TOPBOTTOM;
    185 	wmove(radar, scp->height - 1, 0);
    186 	for (i = 0; i < scp->width - 1; i++)
    187 		waddstr(radar, str);
    188 	waddch(radar, C_TOPBOTTOM);
    189 
    190 	for (i = 1; i < scp->height - 1; i++) {
    191 		wmove(radar, i, 0);
    192 		waddch(radar, C_LEFTRIGHT);
    193 		wmove(radar, i, (scp->width - 1) * 2);
    194 		waddch(radar, C_LEFTRIGHT);
    195 	}
    196 
    197 	str[0] = C_BEACON;
    198 	for (i = 0; i < scp->num_beacons; i++) {
    199 		str[1] = '0' + i;
    200 		wmove(radar, scp->beacon[i].y, scp->beacon[i].x * 2);
    201 		waddstr(radar, str);
    202 	}
    203 
    204 	for (i = 0; i < scp->num_exits; i++) {
    205 		wmove(radar, scp->exit[i].y, scp->exit[i].x * 2);
    206 		waddch(radar, '0' + i);
    207 	}
    208 
    209 	airstr = "^?>?v?<?";
    210 	for (i = 0; i < scp->num_airports; i++) {
    211 		str[0] = airstr[scp->airport[i].dir];
    212 		str[1] = '0' + i;
    213 		wmove(radar, scp->airport[i].y, scp->airport[i].x * 2);
    214 		waddstr(radar, str);
    215 	}
    216 
    217 	overwrite(radar, cleanradar);
    218 	wrefresh(radar);
    219 	wrefresh(credit);
    220 	fflush(stdout);
    221 }
    222 
    223 void
    224 draw_line(w, x, y, lx, ly, s)
    225 	WINDOW	*w;
    226 	int	 x, y, lx, ly;
    227 	const char	*s;
    228 {
    229 	int	dx, dy;
    230 
    231 	dx = SGN(lx - x);
    232 	dy = SGN(ly - y);
    233 	for (;;) {
    234 		wmove(w, y, x * 2);
    235 		waddstr(w, s);
    236 		if (x == lx && y == ly)
    237 			break;
    238 		x += dx;
    239 		y += dy;
    240 	}
    241 }
    242 
    243 void
    244 ioclrtoeol(pos)
    245 	int pos;
    246 {
    247 	wmove(input, 0, pos);
    248 	wclrtoeol(input);
    249 	wrefresh(input);
    250 	fflush(stdout);
    251 }
    252 
    253 void
    254 iomove(pos)
    255 	int pos;
    256 {
    257 	wmove(input, 0, pos);
    258 	wrefresh(input);
    259 	fflush(stdout);
    260 }
    261 
    262 void
    263 ioaddstr(pos, str)
    264 	int	 pos;
    265 	const char	*str;
    266 {
    267 	wmove(input, 0, pos);
    268 	waddstr(input, str);
    269 	wrefresh(input);
    270 	fflush(stdout);
    271 }
    272 
    273 void
    274 ioclrtobot()
    275 {
    276 	wclrtobot(input);
    277 	wrefresh(input);
    278 	fflush(stdout);
    279 }
    280 
    281 void
    282 ioerror(pos, len, str)
    283 	int	 pos, len;
    284 	const char	*str;
    285 {
    286 	int	i;
    287 
    288 	wmove(input, 1, pos);
    289 	for (i = 0; i < len; i++)
    290 		waddch(input, '^');
    291 	wmove(input, 2, 0);
    292 	waddstr(input, str);
    293 	wrefresh(input);
    294 	fflush(stdout);
    295 }
    296 
    297 void
    298 quit(dummy)
    299 	int dummy __attribute__((__unused__));
    300 {
    301 	int			c, y, x;
    302 #ifdef BSD
    303 	struct itimerval	itv;
    304 #endif
    305 
    306 	getyx(input, y, x);
    307 	wmove(input, 2, 0);
    308 	waddstr(input, "Really quit? (y/n) ");
    309 	wclrtobot(input);
    310 	wrefresh(input);
    311 	fflush(stdout);
    312 
    313 	c = getchar();
    314 	if (c == EOF || c == 'y') {
    315 		/* disable timer */
    316 #ifdef BSD
    317 		itv.it_value.tv_sec = 0;
    318 		itv.it_value.tv_usec = 0;
    319 		setitimer(ITIMER_REAL, &itv, NULL);
    320 #endif
    321 #ifdef SYSV
    322 		alarm(0);
    323 #endif
    324 		fflush(stdout);
    325 		clear();
    326 		refresh();
    327 		endwin();
    328 		log_score(0);
    329 		exit(0);
    330 	}
    331 	wmove(input, 2, 0);
    332 	wclrtobot(input);
    333 	wmove(input, y, x);
    334 	wrefresh(input);
    335 	fflush(stdout);
    336 }
    337 
    338 void
    339 planewin()
    340 {
    341 	PLANE	*pp;
    342 	int	warning = 0;
    343 
    344 #ifdef BSD
    345 	wclear(planes);
    346 #endif
    347 
    348 	wmove(planes, 0,0);
    349 
    350 #ifdef SYSV
    351 	wclrtobot(planes);
    352 #endif
    353 	wprintw(planes, "Time: %-4d Safe: %d", clck, safe_planes);
    354 	wmove(planes, 2, 0);
    355 
    356 	waddstr(planes, "pl dt  comm");
    357 	for (pp = air.head; pp != NULL; pp = pp->next) {
    358 		if (waddch(planes, '\n') == ERR) {
    359 			warning++;
    360 			break;
    361 		}
    362 		waddstr(planes, command(pp));
    363 	}
    364 	waddch(planes, '\n');
    365 	for (pp = ground.head; pp != NULL; pp = pp->next) {
    366 		if (waddch(planes, '\n') == ERR) {
    367 			warning++;
    368 			break;
    369 		}
    370 		waddstr(planes, command(pp));
    371 	}
    372 	if (warning) {
    373 		wmove(planes, LINES - INPUT_LINES - 1, 0);
    374 		waddstr(planes, "---- more ----");
    375 		wclrtoeol(planes);
    376 	}
    377 	wrefresh(planes);
    378 	fflush(stdout);
    379 }
    380 
    381 void
    382 loser(p, s)
    383 	const PLANE	*p;
    384 	const char	*s;
    385 {
    386 	int			c;
    387 #ifdef BSD
    388 	struct itimerval	itv;
    389 #endif
    390 
    391 	/* disable timer */
    392 #ifdef BSD
    393 	itv.it_value.tv_sec = 0;
    394 	itv.it_value.tv_usec = 0;
    395 	setitimer(ITIMER_REAL, &itv, NULL);
    396 #endif
    397 #ifdef SYSV
    398 	alarm(0);
    399 #endif
    400 
    401 	wmove(input, 0, 0);
    402 	wclrtobot(input);
    403 	/* p may be NULL if we ran out of memory */
    404 	if (p == NULL)
    405 		wprintw(input, "%s\n\nHit space for top players list...", s);
    406 	else
    407 		wprintw(input, "Plane '%c' %s\n\nHit space for top players list...",
    408 			name(p), s);
    409 	wrefresh(input);
    410 	fflush(stdout);
    411 	while ((c = getchar()) != EOF && c != ' ')
    412 		;
    413 	clear();	/* move to top of screen */
    414 	refresh();
    415 	endwin();
    416 	log_score(0);
    417 	exit(0);
    418 }
    419 
    420 void
    421 redraw()
    422 {
    423 	clear();
    424 	refresh();
    425 
    426 	touchwin(radar);
    427 	wrefresh(radar);
    428 	touchwin(planes);
    429 	wrefresh(planes);
    430 	touchwin(credit);
    431 	wrefresh(credit);
    432 
    433 	/* refresh input last to get cursor in right place */
    434 	touchwin(input);
    435 	wrefresh(input);
    436 	fflush(stdout);
    437 }
    438 
    439 void
    440 done_screen()
    441 {
    442 	clear();
    443 	refresh();
    444 	endwin();	  /* clean up curses */
    445 }
    446