1/*	$OpenBSD: graphics.c,v 1.12 2016/08/27 02:02:44 guenther Exp $	*/
2/*	$NetBSD: graphics.c,v 1.3 1995/03/21 15:04:04 cgd Exp $	*/
3
4/*-
5 * Copyright (c) 1990, 1993
6 *	The Regents of the University of California.  All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Ed James.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. 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/*
37 * Copyright (c) 1987 by Ed James, UC Berkeley.  All rights reserved.
38 *
39 * Copy permission is hereby granted provided that this notice is
40 * retained on all partial or complete copies.
41 *
42 * For more info on this and all of my stuff, mail edjames@berkeley.edu.
43 */
44
45#include <sys/time.h>
46#include <curses.h>
47#include <err.h>
48#include <stdlib.h>
49
50#include "def.h"
51#include "extern.h"
52
53#define C_TOPBOTTOM		'-'
54#define C_LEFTRIGHT		'|'
55#define C_AIRPORT		'='
56#define C_LINE			'+'
57#define C_BACKROUND		'.'
58#define C_BEACON		'*'
59#define C_CREDIT		'*'
60
61WINDOW	*radar, *cleanradar, *credit, *input, *planes;
62
63int
64getAChar(void)
65{
66	int c;
67
68	if ((c = getchar()) == EOF && feof(stdin))
69		quit(0);
70	return (c);
71}
72
73void
74erase_all(void)
75{
76	PLANE	*pp;
77
78	for (pp = air.head; pp != NULL; pp = pp->next) {
79		wmove(cleanradar, pp->ypos, pp->xpos * 2);
80		wmove(radar, pp->ypos, pp->xpos * 2);
81		waddch(radar, winch(cleanradar));
82		wmove(cleanradar, pp->ypos, pp->xpos * 2 + 1);
83		wmove(radar, pp->ypos, pp->xpos * 2 + 1);
84		waddch(radar, winch(cleanradar));
85	}
86}
87
88void
89draw_all(void)
90{
91	PLANE	*pp;
92
93	for (pp = air.head; pp != NULL; pp = pp->next) {
94		if (pp->status == S_MARKED)
95			wstandout(radar);
96		wmove(radar, pp->ypos, pp->xpos * 2);
97		waddch(radar, name(pp));
98		waddch(radar, '0' + pp->altitude);
99		if (pp->status == S_MARKED)
100			wstandend(radar);
101	}
102	wrefresh(radar);
103	planewin();
104	wrefresh(input);		/* return cursor */
105	fflush(stdout);
106}
107
108void
109setup_screen(const C_SCREEN *scp)
110{
111	static char	buffer[BUFSIZ];
112	int	i, j;
113	char	str[3];
114	const char *airstr;
115
116	initscr();
117	/* size of screen depends on chosen game, but we need at least 80
118	 * columns for "Information area" to work. */
119	if (LINES < (INPUT_LINES + scp->height) ||
120	    COLS < (PLANE_COLS + 2 * scp->width) ||
121	    COLS < 80) {
122		endwin();
123		errx(1, "screen too small.");
124	}
125	setvbuf(stdout, buffer, _IOFBF, sizeof buffer);
126	input = newwin(INPUT_LINES, COLS - PLANE_COLS, LINES - INPUT_LINES, 0);
127	credit = newwin(INPUT_LINES, PLANE_COLS, LINES - INPUT_LINES,
128		COLS - PLANE_COLS);
129	planes = newwin(LINES - INPUT_LINES, PLANE_COLS, 0, COLS - PLANE_COLS);
130
131	str[2] = '\0';
132
133	if (radar != NULL)
134		delwin(radar);
135	radar = newwin(scp->height, scp->width * 2, 0, 0);
136
137	if (cleanradar != NULL)
138		delwin(cleanradar);
139	cleanradar = newwin(scp->height, scp->width * 2, 0, 0);
140
141	/* minus one here to prevent a scroll */
142	for (i = 0; i < PLANE_COLS - 1; i++) {
143		wmove(credit, 0, i);
144		waddch(credit, C_CREDIT);
145		wmove(credit, INPUT_LINES - 1, i);
146		waddch(credit, C_CREDIT);
147	}
148	wmove(credit, INPUT_LINES / 2, 1);
149	waddstr(credit, AUTHOR_STR);
150
151	for (i = 1; i < scp->height - 1; i++) {
152		for (j = 1; j < scp->width - 1; j++) {
153			wmove(radar, i, j * 2);
154			waddch(radar, C_BACKROUND);
155		}
156	}
157
158	/*
159	 * Draw the lines first, since people like to draw lines
160	 * through beacons and exit points.
161	 */
162	str[0] = C_LINE;
163	for (i = 0; i < scp->num_lines; i++) {
164		str[1] = ' ';
165		draw_line(radar, scp->line[i].p1.x, scp->line[i].p1.y,
166			scp->line[i].p2.x, scp->line[i].p2.y, str);
167	}
168
169	str[0] = C_TOPBOTTOM;
170	str[1] = C_TOPBOTTOM;
171	wmove(radar, 0, 0);
172	for (i = 0; i < scp->width - 1; i++)
173		waddstr(radar, str);
174	waddch(radar, C_TOPBOTTOM);
175
176	str[0] = C_TOPBOTTOM;
177	str[1] = C_TOPBOTTOM;
178	wmove(radar, scp->height - 1, 0);
179	for (i = 0; i < scp->width - 1; i++)
180		waddstr(radar, str);
181	waddch(radar, C_TOPBOTTOM);
182
183	for (i = 1; i < scp->height - 1; i++) {
184		wmove(radar, i, 0);
185		waddch(radar, C_LEFTRIGHT);
186		wmove(radar, i, (scp->width - 1) * 2);
187		waddch(radar, C_LEFTRIGHT);
188	}
189
190	str[0] = C_BEACON;
191	for (i = 0; i < scp->num_beacons; i++) {
192		str[1] = '0' + i;
193		wmove(radar, scp->beacon[i].y, scp->beacon[i].x * 2);
194		waddstr(radar, str);
195	}
196
197	for (i = 0; i < scp->num_exits; i++) {
198		wmove(radar, scp->exit[i].y, scp->exit[i].x * 2);
199		waddch(radar, '0' + i);
200	}
201
202	airstr = "^?>?v?<?";
203	for (i = 0; i < scp->num_airports; i++) {
204		str[0] = airstr[scp->airport[i].dir];
205		str[1] = '0' + i;
206		wmove(radar, scp->airport[i].y, scp->airport[i].x * 2);
207		waddstr(radar, str);
208	}
209
210	overwrite(radar, cleanradar);
211	wrefresh(radar);
212	wrefresh(credit);
213	fflush(stdout);
214}
215
216void
217draw_line(WINDOW *w, int x, int y, int lx, int ly, const char *s)
218{
219	int	dx, dy;
220
221	dx = SGN(lx - x);
222	dy = SGN(ly - y);
223	for (;;) {
224		wmove(w, y, x * 2);
225		waddstr(w, s);
226		if (x == lx && y == ly)
227			break;
228		x += dx;
229		y += dy;
230	}
231}
232
233void
234ioclrtoeol(int pos)
235{
236	wmove(input, 0, pos);
237	wclrtoeol(input);
238	wrefresh(input);
239	fflush(stdout);
240}
241
242void
243iomove(int pos)
244{
245	wmove(input, 0, pos);
246	wrefresh(input);
247	fflush(stdout);
248}
249
250void
251ioaddstr(int pos, const char *str)
252{
253	wmove(input, 0, pos);
254	waddstr(input, str);
255	wrefresh(input);
256	fflush(stdout);
257}
258
259void
260ioclrtobot(void)
261{
262	wclrtobot(input);
263	wrefresh(input);
264	fflush(stdout);
265}
266
267void
268ioerror(int pos, int len, const char *str)
269{
270	int	i;
271
272	wmove(input, 1, pos);
273	for (i = 0; i < len; i++)
274		waddch(input, '^');
275	wmove(input, 2, 0);
276	waddstr(input, str);
277	wrefresh(input);
278	fflush(stdout);
279}
280
281void
282quit(int dummy)
283{
284	int			c, y, x;
285	struct itimerval	itv;
286
287	getyx(input, y, x);
288	wmove(input, 2, 0);
289	waddstr(input, "Really quit? (y/n) ");
290	wclrtobot(input);
291	wrefresh(input);
292	fflush(stdout);
293
294	c = getchar();
295	if (c == EOF || c == 'y') {
296		/* disable timer */
297		itv.it_value.tv_sec = 0;
298		itv.it_value.tv_usec = 0;
299		setitimer(ITIMER_REAL, &itv, NULL);
300		fflush(stdout);
301		clear();
302		refresh();
303		endwin();
304		log_score(0);
305		exit(0);
306	}
307	wmove(input, 2, 0);
308	wclrtobot(input);
309	wmove(input, y, x);
310	wrefresh(input);
311	fflush(stdout);
312}
313
314void
315planewin(void)
316{
317	PLANE	*pp;
318	int	warning = 0;
319
320	wclear(planes);
321
322	wmove(planes, 0,0);
323
324	wprintw(planes, "Time: %-4d Safe: %d", clck, safe_planes);
325	wmove(planes, 2, 0);
326
327	waddstr(planes, "pl dt  comm");
328	for (pp = air.head; pp != NULL; pp = pp->next) {
329		if (waddch(planes, '\n') == ERR) {
330			warning++;
331			break;
332		}
333		waddstr(planes, command(pp));
334	}
335	waddch(planes, '\n');
336	for (pp = ground.head; pp != NULL; pp = pp->next) {
337		if (waddch(planes, '\n') == ERR) {
338			warning++;
339			break;
340		}
341		waddstr(planes, command(pp));
342	}
343	if (warning) {
344		wmove(planes, LINES - INPUT_LINES - 1, 0);
345		waddstr(planes, "---- more ----");
346		wclrtoeol(planes);
347	}
348	wrefresh(planes);
349	fflush(stdout);
350}
351
352void
353loser(const PLANE *p, const char *s)
354{
355	int			c;
356	struct itimerval	itv;
357
358	/* disable timer */
359	itv.it_value.tv_sec = 0;
360	itv.it_value.tv_usec = 0;
361	setitimer(ITIMER_REAL, &itv, NULL);
362
363	wmove(input, 0, 0);
364	wclrtobot(input);
365	if (p == NULL)
366		wprintw(input, "%s\n\nHit space for top players list...", s);
367	else
368		wprintw(input, "Plane '%c' %s\n\nHit space for top players list...",
369			name(p), s);
370	wrefresh(input);
371	fflush(stdout);
372	while ((c = getchar()) != EOF && c != ' ')
373		;
374	clear();	/* move to top of screen */
375	refresh();
376	endwin();
377	log_score(0);
378	exit(0);
379}
380
381void
382redraw(void)
383{
384	clear();
385	refresh();
386
387	touchwin(radar);
388	wrefresh(radar);
389	touchwin(planes);
390	wrefresh(planes);
391	touchwin(credit);
392	wrefresh(credit);
393
394	/* refresh input last to get cursor in right place */
395	touchwin(input);
396	wrefresh(input);
397	fflush(stdout);
398}
399
400void
401done_screen(void)
402{
403	clear();
404	refresh();
405	endwin();	  /* clean up curses */
406}
407