1/*	$NetBSD: graphics.c,v 1.15 2008/08/08 16:10:47 drochner 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. 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/*
36 * Copyright (c) 1987 by Ed James, UC Berkeley.  All rights reserved.
37 *
38 * Copy permission is hereby granted provided that this notice is
39 * retained on all partial or complete copies.
40 *
41 * For more info on this and all of my stuff, mail edjames@berkeley.edu.
42 */
43
44#include <sys/cdefs.h>
45#ifndef lint
46#if 0
47static char sccsid[] = "@(#)graphics.c	8.1 (Berkeley) 5/31/93";
48#else
49__RCSID("$NetBSD: graphics.c,v 1.15 2008/08/08 16:10:47 drochner Exp $");
50#endif
51#endif /* not lint */
52
53#include "include.h"
54
55#define C_TOPBOTTOM		'-'
56#define C_LEFTRIGHT		'|'
57#define C_AIRPORT		'='
58#define C_LINE			'+'
59#define C_BACKROUND		'.'
60#define C_BEACON		'*'
61#define C_CREDIT		'*'
62
63static void draw_line(WINDOW *, int, int, int, int, const char *);
64
65static WINDOW *radar, *cleanradar, *credit, *input, *planes;
66
67int
68getAChar(void)
69{
70	int c;
71
72	errno = 0;
73	while ((c = getchar()) == EOF && errno == EINTR) {
74		errno = 0;
75		clearerr(stdin);
76	}
77	return(c);
78}
79
80void
81erase_all(void)
82{
83	PLANE	*pp;
84
85	for (pp = air.head; pp != NULL; pp = pp->next) {
86		(void)wmove(cleanradar, pp->ypos, pp->xpos * 2);
87		(void)wmove(radar, pp->ypos, pp->xpos * 2);
88		(void)waddch(radar, winch(cleanradar));
89		(void)wmove(cleanradar, pp->ypos, pp->xpos * 2 + 1);
90		(void)wmove(radar, pp->ypos, pp->xpos * 2 + 1);
91		(void)waddch(radar, winch(cleanradar));
92	}
93}
94
95void
96draw_all(void)
97{
98	PLANE	*pp;
99
100	for (pp = air.head; pp != NULL; pp = pp->next) {
101		if (pp->status == S_MARKED)
102			(void)wstandout(radar);
103		(void)wmove(radar, pp->ypos, pp->xpos * 2);
104		(void)waddch(radar, name(pp));
105		(void)waddch(radar, '0' + pp->altitude);
106		if (pp->status == S_MARKED)
107			(void)wstandend(radar);
108	}
109	(void)wrefresh(radar);
110	(void)planewin();
111	(void)wrefresh(input);		/* return cursor */
112	(void)fflush(stdout);
113}
114
115void
116init_gr(void)
117{
118	static char	buffer[BUFSIZ];
119
120	if (!initscr())
121		errx(0, "couldn't initialize screen");
122	setbuf(stdout, buffer);
123	input = newwin(INPUT_LINES, COLS - PLANE_COLS, LINES - INPUT_LINES, 0);
124	credit = newwin(INPUT_LINES, PLANE_COLS, LINES - INPUT_LINES,
125		COLS - PLANE_COLS);
126	planes = newwin(LINES - INPUT_LINES, PLANE_COLS, 0, COLS - PLANE_COLS);
127}
128
129void
130setup_screen(const C_SCREEN *scp)
131{
132	int	i, j;
133	char	str[3];
134	const char *airstr;
135
136	str[2] = '\0';
137
138	if (radar != NULL)
139		(void)delwin(radar);
140	radar = newwin(scp->height, scp->width * 2, 0, 0);
141
142	if (cleanradar != NULL)
143		(void)delwin(cleanradar);
144	cleanradar = newwin(scp->height, scp->width * 2, 0, 0);
145
146	/* minus one here to prevent a scroll */
147	for (i = 0; i < PLANE_COLS - 1; i++) {
148		(void)wmove(credit, 0, i);
149		(void)waddch(credit, C_CREDIT);
150		(void)wmove(credit, INPUT_LINES - 1, i);
151		(void)waddch(credit, C_CREDIT);
152	}
153	(void)wmove(credit, INPUT_LINES / 2, 1);
154	(void)waddstr(credit, AUTHOR_STR);
155
156	for (i = 1; i < scp->height - 1; i++) {
157		for (j = 1; j < scp->width - 1; j++) {
158			(void)wmove(radar, i, j * 2);
159			(void)waddch(radar, C_BACKROUND);
160		}
161	}
162
163	/*
164	 * Draw the lines first, since people like to draw lines
165	 * through beacons and exit points.
166	 */
167	str[0] = C_LINE;
168	for (i = 0; i < scp->num_lines; i++) {
169		str[1] = ' ';
170		draw_line(radar, scp->line[i].p1.x, scp->line[i].p1.y,
171			scp->line[i].p2.x, scp->line[i].p2.y, str);
172	}
173
174	str[0] = C_TOPBOTTOM;
175	str[1] = C_TOPBOTTOM;
176	(void)wmove(radar, 0, 0);
177	for (i = 0; i < scp->width - 1; i++)
178		(void)waddstr(radar, str);
179	(void)waddch(radar, C_TOPBOTTOM);
180
181	str[0] = C_TOPBOTTOM;
182	str[1] = C_TOPBOTTOM;
183	(void)wmove(radar, scp->height - 1, 0);
184	for (i = 0; i < scp->width - 1; i++)
185		(void)waddstr(radar, str);
186	(void)waddch(radar, C_TOPBOTTOM);
187
188	for (i = 1; i < scp->height - 1; i++) {
189		(void)wmove(radar, i, 0);
190		(void)waddch(radar, C_LEFTRIGHT);
191		(void)wmove(radar, i, (scp->width - 1) * 2);
192		(void)waddch(radar, C_LEFTRIGHT);
193	}
194
195	str[0] = C_BEACON;
196	for (i = 0; i < scp->num_beacons; i++) {
197		str[1] = '0' + i;
198		(void)wmove(radar, scp->beacon[i].y, scp->beacon[i].x * 2);
199		(void)waddstr(radar, str);
200	}
201
202	for (i = 0; i < scp->num_exits; i++) {
203		(void)wmove(radar, scp->exit[i].y, scp->exit[i].x * 2);
204		(void)waddch(radar, '0' + i);
205	}
206
207	airstr = "^?>?v?<?";
208	for (i = 0; i < scp->num_airports; i++) {
209		str[0] = airstr[scp->airport[i].dir];
210		str[1] = '0' + i;
211		(void)wmove(radar, scp->airport[i].y, scp->airport[i].x * 2);
212		(void)waddstr(radar, str);
213	}
214
215	(void)overwrite(radar, cleanradar);
216	(void)wrefresh(radar);
217	(void)wrefresh(credit);
218	(void)fflush(stdout);
219}
220
221static void
222draw_line(WINDOW *w, int x, int y, int lx, int ly, const char *s)
223{
224	int	dx, dy;
225
226	dx = SGN(lx - x);
227	dy = SGN(ly - y);
228	for (;;) {
229		(void)wmove(w, y, x * 2);
230		(void)waddstr(w, s);
231		if (x == lx && y == ly)
232			break;
233		x += dx;
234		y += dy;
235	}
236}
237
238void
239ioclrtoeol(int pos)
240{
241	(void)wmove(input, 0, pos);
242	(void)wclrtoeol(input);
243	(void)wrefresh(input);
244	(void)fflush(stdout);
245}
246
247void
248iomove(int pos)
249{
250	(void)wmove(input, 0, pos);
251	(void)wrefresh(input);
252	(void)fflush(stdout);
253}
254
255void
256ioaddstr(int pos, const char *str)
257{
258	(void)wmove(input, 0, pos);
259	(void)waddstr(input, str);
260	(void)wrefresh(input);
261	(void)fflush(stdout);
262}
263
264void
265ioclrtobot(void)
266{
267	(void)wclrtobot(input);
268	(void)wrefresh(input);
269	(void)fflush(stdout);
270}
271
272void
273ioerror(int pos, int len, const char *str)
274{
275	int	i;
276
277	(void)wmove(input, 1, pos);
278	for (i = 0; i < len; i++)
279		(void)waddch(input, '^');
280	(void)wmove(input, 2, 0);
281	(void)waddstr(input, str);
282	(void)wrefresh(input);
283	(void)fflush(stdout);
284}
285
286/* ARGSUSED */
287void
288quit(int dummy __unused)
289{
290	int			c, y, x;
291#ifdef BSD
292	struct itimerval	itv;
293#endif
294
295	getyx(input, y, x);
296	(void)wmove(input, 2, 0);
297	(void)waddstr(input, "Really quit? (y/n) ");
298	(void)wclrtobot(input);
299	(void)wrefresh(input);
300	(void)fflush(stdout);
301
302	c = getchar();
303	if (c == EOF || c == 'y') {
304		/* disable timer */
305#ifdef BSD
306		itv.it_value.tv_sec = 0;
307		itv.it_value.tv_usec = 0;
308		(void)setitimer(ITIMER_REAL, &itv, NULL);
309#endif
310#ifdef SYSV
311		alarm(0);
312#endif
313		(void)fflush(stdout);
314		(void)clear();
315		(void)refresh();
316		(void)endwin();
317		(void)log_score(0);
318		exit(0);
319	}
320	(void)wmove(input, 2, 0);
321	(void)wclrtobot(input);
322	(void)wmove(input, y, x);
323	(void)wrefresh(input);
324	(void)fflush(stdout);
325}
326
327void
328planewin(void)
329{
330	PLANE	*pp;
331	int	warning = 0;
332
333#ifdef BSD
334	(void)wclear(planes);
335#endif
336
337	(void)wmove(planes, 0,0);
338
339#ifdef SYSV
340	wclrtobot(planes);
341#endif
342	(void)wprintw(planes, "Time: %-4d Safe: %d", clck, safe_planes);
343	(void)wmove(planes, 2, 0);
344
345	(void)waddstr(planes, "pl dt  comm");
346	for (pp = air.head; pp != NULL; pp = pp->next) {
347		if (waddch(planes, '\n') == ERR) {
348			warning++;
349			break;
350		}
351		(void)waddstr(planes, command(pp));
352	}
353	(void)waddch(planes, '\n');
354	for (pp = ground.head; pp != NULL; pp = pp->next) {
355		if (waddch(planes, '\n') == ERR) {
356			warning++;
357			break;
358		}
359		(void)waddstr(planes, command(pp));
360	}
361	if (warning) {
362		(void)wmove(planes, LINES - INPUT_LINES - 1, 0);
363		(void)waddstr(planes, "---- more ----");
364		(void)wclrtoeol(planes);
365	}
366	(void)wrefresh(planes);
367	(void)fflush(stdout);
368}
369
370void
371loser(const PLANE *p, const char *s)
372{
373	int			c;
374#ifdef BSD
375	struct itimerval	itv;
376#endif
377
378	/* disable timer */
379#ifdef BSD
380	itv.it_value.tv_sec = 0;
381	itv.it_value.tv_usec = 0;
382	(void)setitimer(ITIMER_REAL, &itv, NULL);
383#endif
384#ifdef SYSV
385	alarm(0);
386#endif
387
388	(void)wmove(input, 0, 0);
389	(void)wclrtobot(input);
390	/* p may be NULL if we ran out of memory */
391	if (p == NULL)
392		(void)wprintw(input, "%s\n\nHit space for top players list...",
393		    s);
394	else {
395		(void)wprintw(input, "Plane '%c' %s\n\n", name(p), s);
396		(void)wprintw(input, "Hit space for top players list...");
397	}
398	(void)wrefresh(input);
399	(void)fflush(stdout);
400	while ((c = getchar()) != EOF && c != ' ')
401		;
402	(void)clear();	/* move to top of screen */
403	(void)refresh();
404	(void)endwin();
405	(void)log_score(0);
406	exit(0);
407}
408
409void
410redraw(void)
411{
412	(void)clear();
413	(void)refresh();
414
415	(void)touchwin(radar);
416	(void)wrefresh(radar);
417	(void)touchwin(planes);
418	(void)wrefresh(planes);
419	(void)touchwin(credit);
420	(void)wrefresh(credit);
421
422	/* refresh input last to get cursor in right place */
423	(void)touchwin(input);
424	(void)wrefresh(input);
425	(void)fflush(stdout);
426}
427
428void
429done_screen(void)
430{
431	(void)clear();
432	(void)refresh();
433	(void)endwin();	  /* clean up curses */
434}
435