-WARNS6 cleanup (1858 warnings)
[dragonfly.git] / games / battlestar / fly.c
CommitLineData
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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.
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32 *
33 * @(#)fly.c 8.1 (Berkeley) 5/31/93
34 * $FreeBSD: src/games/battlestar/fly.c,v 1.6.2.1 2001/03/05 11:45:36 kris Exp $
851dc90d 35 * $DragonFly: src/games/battlestar/fly.c,v 1.3 2003/11/12 14:53:52 eirikn Exp $
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36 */
37
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38#include "externs.h"
39#undef UP
40#include <curses.h>
41#include <string.h>
42
43#define abs(a) ((a) < 0 ? -(a) : (a))
44#define MIDR (LINES/2 - 1)
45#define MIDC (COLS/2 - 1)
46
47int row, column;
48int dr = 0, dc = 0;
49char destroyed;
50int gclock = 120; /* gtime for all the flights in the game */
51char cross = 0;
52sig_t oldsig;
53
851dc90d
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54static void blast (void);
55static void endfly (void);
56static void moveenemy (int);
57static void notarget (void);
58static void succumb (int);
59static void screen (void);
60static void target (void);
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61
62void
63succumb(sig)
64 int sig;
65{
66
67 sig = 0;
68 if (oldsig == SIG_DFL) {
69 endfly();
70 exit(1);
71 }
72 if (oldsig != SIG_IGN) {
73 endfly();
74 (*oldsig)(SIGINT);
75 }
76}
77
78int
79visual()
80{
81
82 destroyed = 0;
83 if(initscr() == NULL){
84 puts("Whoops! No more memory...");
85 return(0);
86 }
87 oldsig = signal(SIGINT, succumb);
88 crmode();
89 noecho();
90 screen();
91 row = rnd(LINES-3) + 1;
92 column = rnd(COLS-2) + 1;
93 moveenemy(0);
94 for (;;) {
95 switch(getchar()){
96
97 case 'h':
98 case 'r':
99 dc = -1;
100 fuel--;
101 break;
102
103 case 'H':
104 case 'R':
105 dc = -5;
106 fuel -= 10;
107 break;
108
109 case 'l':
110 dc = 1;
111 fuel--;
112 break;
113
114 case 'L':
115 dc = 5;
116 fuel -= 10;
117 break;
118
119 case 'j':
120 case 'u':
121 dr = 1;
122 fuel--;
123 break;
124
125 case 'J':
126 case 'U':
127 dr = 5;
128 fuel -= 10;
129 break;
130
131 case 'k':
132 case 'd':
133 dr = -1;
134 fuel--;
135 break;
136
137 case 'K':
138 case 'D':
139 dr = -5;
140 fuel -= 10;
141 break;
142
143 case '+':
144 if (cross){
145 cross = 0;
146 notarget();
147 }
148 else
149 cross = 1;
150 break;
151
152 case ' ':
153 case 'f':
154 if (torps){
155 torps -= 2;
156 blast();
157 if (row == MIDR && column - MIDC < 2 && MIDC - column < 2){
158 destroyed = 1;
159 alarm(0);
160 }
161 }
162 else
163 mvaddstr(0,0,"*** Out of torpedoes. ***");
164 break;
165
166 case 'q':
167 endfly();
168 return(0);
169
170 default:
171 mvaddstr(0,26,"Commands = r,R,l,L,u,U,d,D,f,+,q");
172 continue;
173
174 case EOF:
175 break;
176 }
177 if (destroyed){
178 endfly();
179 return(1);
180 }
181 if (gclock <= 0){
182 endfly();
183 die(0);
184 }
185 }
186 /* NOTREACHED */
187 return(1);
188}
189
190void
191screen()
192{
193 int r,c,n;
194 int i;
195
196 clear();
197 i = rnd(100);
198 for (n=0; n < i; n++){
199 r = rnd(LINES-3) + 1;
200 c = rnd(COLS);
201 mvaddch(r, c, '.');
202 }
203 mvaddstr(LINES-1-1,21,"TORPEDOES FUEL TIME");
204 refresh();
205}
206
207void
208target()
209{
210 int n;
211
212 move(MIDR,MIDC-10);
213 addstr("------- + -------");
214 for (n = MIDR-4; n < MIDR-1; n++){
215 mvaddch(n,MIDC,'|');
216 mvaddch(n+6,MIDC,'|');
217 }
218}
219
220void
221notarget()
222{
223 int n;
224
225 move(MIDR,MIDC-10);
226 addstr(" ");
227 for (n = MIDR-4; n < MIDR-1; n++){
228 mvaddch(n,MIDC,' ');
229 mvaddch(n+6,MIDC,' ');
230 }
231}
232
233void
234blast()
235{
236 int n;
237
238 alarm(0);
239 move(LINES-1, 24);
240 printw((char *)(uintptr_t)(const void *)"%3d", torps);
241 for(n = LINES-1-2; n >= MIDR + 1; n--){
242 mvaddch(n, MIDC+MIDR-n, '/');
243 mvaddch(n, MIDC-MIDR+n, '\\');
244 refresh();
245 }
246 mvaddch(MIDR,MIDC,'*');
247 for(n = LINES-1-2; n >= MIDR + 1; n--){
248 mvaddch(n, MIDC+MIDR-n, ' ');
249 mvaddch(n, MIDC-MIDR+n, ' ');
250 refresh();
251 }
252 alarm(1);
253}
254
255void
256moveenemy(int sig)
257{
258 double d;
259 int oldr, oldc;
260
261 sig = 0;
262 oldr = row;
263 oldc = column;
264 if (fuel > 0){
265 if (row + dr <= LINES-3 && row + dr > 0)
266 row += dr;
267 if (column + dc < COLS-1 && column + dc > 0)
268 column += dc;
269 } else if (fuel < 0){
270 fuel = 0;
271 mvaddstr(0,60,"*** Out of fuel ***");
272 }
273 d = (double) ((row - MIDR)*(row - MIDR) + (column - MIDC)*(column - MIDC));
274 if (d < 16){
275 row += (rnd(9) - 4) % (4 - abs(row - MIDR));
276 column += (rnd(9) - 4) % (4 - abs(column - MIDC));
277 }
278 gclock--;
279 mvaddstr(oldr, oldc - 1, " ");
280 if (cross)
281 target();
282 mvaddstr(row, column - 1, "/-\\");
283 move(LINES-1, 24);
284 printw((char *)(uintptr_t)(const void *)"%3d", torps);
285 move(LINES-1, 42);
286 printw((char *)(uintptr_t)(const void *)"%3d", fuel);
287 move(LINES-1, 57);
288 printw((char *)(uintptr_t)(const void *)"%3d", gclock);
289 refresh();
290 signal(SIGALRM, moveenemy);
291 alarm(1);
292}
293
294void
295endfly()
296{
297 alarm(0);
298 signal(SIGALRM, SIG_DFL);
299 mvcur(0,COLS-1,LINES-1,0);
300 endwin();
301 signal(SIGTSTP, SIG_DFL);
302 signal(SIGINT, oldsig);
303}