Initial import from FreeBSD RELENG_4:
[dragonfly.git] / games / battlestar / fly.c
CommitLineData
984263bc
MD
1/*
2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#ifndef lint
35#if 0
36static char sccsid[] = "@(#)fly.c 8.1 (Berkeley) 5/31/93";
37#endif
38static const char rcsid[] =
39 "$FreeBSD: src/games/battlestar/fly.c,v 1.6.2.1 2001/03/05 11:45:36 kris Exp $";
40#endif /* not lint */
41
42#include "externs.h"
43#undef UP
44#include <curses.h>
45#include <string.h>
46
47#define abs(a) ((a) < 0 ? -(a) : (a))
48#define MIDR (LINES/2 - 1)
49#define MIDC (COLS/2 - 1)
50
51int row, column;
52int dr = 0, dc = 0;
53char destroyed;
54int gclock = 120; /* gtime for all the flights in the game */
55char cross = 0;
56sig_t oldsig;
57
58static void blast __P((void));
59static void endfly __P((void));
60static void moveenemy __P((int));
61static void notarget __P((void));
62static void succumb __P((int));
63static void screen __P((void));
64static void target __P((void));
65
66void
67succumb(sig)
68 int sig;
69{
70
71 sig = 0;
72 if (oldsig == SIG_DFL) {
73 endfly();
74 exit(1);
75 }
76 if (oldsig != SIG_IGN) {
77 endfly();
78 (*oldsig)(SIGINT);
79 }
80}
81
82int
83visual()
84{
85
86 destroyed = 0;
87 if(initscr() == NULL){
88 puts("Whoops! No more memory...");
89 return(0);
90 }
91 oldsig = signal(SIGINT, succumb);
92 crmode();
93 noecho();
94 screen();
95 row = rnd(LINES-3) + 1;
96 column = rnd(COLS-2) + 1;
97 moveenemy(0);
98 for (;;) {
99 switch(getchar()){
100
101 case 'h':
102 case 'r':
103 dc = -1;
104 fuel--;
105 break;
106
107 case 'H':
108 case 'R':
109 dc = -5;
110 fuel -= 10;
111 break;
112
113 case 'l':
114 dc = 1;
115 fuel--;
116 break;
117
118 case 'L':
119 dc = 5;
120 fuel -= 10;
121 break;
122
123 case 'j':
124 case 'u':
125 dr = 1;
126 fuel--;
127 break;
128
129 case 'J':
130 case 'U':
131 dr = 5;
132 fuel -= 10;
133 break;
134
135 case 'k':
136 case 'd':
137 dr = -1;
138 fuel--;
139 break;
140
141 case 'K':
142 case 'D':
143 dr = -5;
144 fuel -= 10;
145 break;
146
147 case '+':
148 if (cross){
149 cross = 0;
150 notarget();
151 }
152 else
153 cross = 1;
154 break;
155
156 case ' ':
157 case 'f':
158 if (torps){
159 torps -= 2;
160 blast();
161 if (row == MIDR && column - MIDC < 2 && MIDC - column < 2){
162 destroyed = 1;
163 alarm(0);
164 }
165 }
166 else
167 mvaddstr(0,0,"*** Out of torpedoes. ***");
168 break;
169
170 case 'q':
171 endfly();
172 return(0);
173
174 default:
175 mvaddstr(0,26,"Commands = r,R,l,L,u,U,d,D,f,+,q");
176 continue;
177
178 case EOF:
179 break;
180 }
181 if (destroyed){
182 endfly();
183 return(1);
184 }
185 if (gclock <= 0){
186 endfly();
187 die(0);
188 }
189 }
190 /* NOTREACHED */
191 return(1);
192}
193
194void
195screen()
196{
197 int r,c,n;
198 int i;
199
200 clear();
201 i = rnd(100);
202 for (n=0; n < i; n++){
203 r = rnd(LINES-3) + 1;
204 c = rnd(COLS);
205 mvaddch(r, c, '.');
206 }
207 mvaddstr(LINES-1-1,21,"TORPEDOES FUEL TIME");
208 refresh();
209}
210
211void
212target()
213{
214 int n;
215
216 move(MIDR,MIDC-10);
217 addstr("------- + -------");
218 for (n = MIDR-4; n < MIDR-1; n++){
219 mvaddch(n,MIDC,'|');
220 mvaddch(n+6,MIDC,'|');
221 }
222}
223
224void
225notarget()
226{
227 int n;
228
229 move(MIDR,MIDC-10);
230 addstr(" ");
231 for (n = MIDR-4; n < MIDR-1; n++){
232 mvaddch(n,MIDC,' ');
233 mvaddch(n+6,MIDC,' ');
234 }
235}
236
237void
238blast()
239{
240 int n;
241
242 alarm(0);
243 move(LINES-1, 24);
244 printw((char *)(uintptr_t)(const void *)"%3d", torps);
245 for(n = LINES-1-2; n >= MIDR + 1; n--){
246 mvaddch(n, MIDC+MIDR-n, '/');
247 mvaddch(n, MIDC-MIDR+n, '\\');
248 refresh();
249 }
250 mvaddch(MIDR,MIDC,'*');
251 for(n = LINES-1-2; n >= MIDR + 1; n--){
252 mvaddch(n, MIDC+MIDR-n, ' ');
253 mvaddch(n, MIDC-MIDR+n, ' ');
254 refresh();
255 }
256 alarm(1);
257}
258
259void
260moveenemy(int sig)
261{
262 double d;
263 int oldr, oldc;
264
265 sig = 0;
266 oldr = row;
267 oldc = column;
268 if (fuel > 0){
269 if (row + dr <= LINES-3 && row + dr > 0)
270 row += dr;
271 if (column + dc < COLS-1 && column + dc > 0)
272 column += dc;
273 } else if (fuel < 0){
274 fuel = 0;
275 mvaddstr(0,60,"*** Out of fuel ***");
276 }
277 d = (double) ((row - MIDR)*(row - MIDR) + (column - MIDC)*(column - MIDC));
278 if (d < 16){
279 row += (rnd(9) - 4) % (4 - abs(row - MIDR));
280 column += (rnd(9) - 4) % (4 - abs(column - MIDC));
281 }
282 gclock--;
283 mvaddstr(oldr, oldc - 1, " ");
284 if (cross)
285 target();
286 mvaddstr(row, column - 1, "/-\\");
287 move(LINES-1, 24);
288 printw((char *)(uintptr_t)(const void *)"%3d", torps);
289 move(LINES-1, 42);
290 printw((char *)(uintptr_t)(const void *)"%3d", fuel);
291 move(LINES-1, 57);
292 printw((char *)(uintptr_t)(const void *)"%3d", gclock);
293 refresh();
294 signal(SIGALRM, moveenemy);
295 alarm(1);
296}
297
298void
299endfly()
300{
301 alarm(0);
302 signal(SIGALRM, SIG_DFL);
303 mvcur(0,COLS-1,LINES-1,0);
304 endwin();
305 signal(SIGTSTP, SIG_DFL);
306 signal(SIGINT, oldsig);
307}