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fdc7d56f | 1 | /* |
e95fc82a KB |
2 | * Copyright (c) 1983 Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
28c5bacc KB |
6 | * provided that the above copyright notice and this paragraph are |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
fdc7d56f EW |
16 | */ |
17 | ||
77eecccb | 18 | #ifndef lint |
28c5bacc | 19 | static char sccsid[] = "@(#)fly.c 5.2 (Berkeley) %G%"; |
e95fc82a | 20 | #endif /* not lint */ |
77eecccb EW |
21 | |
22 | #include "externs.h" | |
23 | #undef UP | |
24 | #include <curses.h> | |
25 | ||
26 | #define abs(a) ((a) < 0 ? -(a) : (a)) | |
27 | #define MIDR (LINES/2 - 1) | |
28 | #define MIDC (COLS/2 - 1) | |
29 | ||
30 | int row, column; | |
31 | int dr = 0, dc = 0; | |
32 | char destroyed; | |
33 | int clock = 120; /* time for all the flights in the game */ | |
34 | char cross = 0; | |
35 | int (*oldsig)(); | |
36 | ||
37 | succumb() | |
38 | { | |
d6b20910 | 39 | if (oldsig == SIG_DFL) { |
a7c71d1e EW |
40 | endfly(); |
41 | exit(1); | |
d6b20910 KB |
42 | } |
43 | if (oldsig != SIG_IGN) { | |
a7c71d1e EW |
44 | endfly(); |
45 | (*oldsig)(); | |
46 | } | |
77eecccb EW |
47 | } |
48 | ||
49 | visual() | |
50 | { | |
51 | int moveenemy(); | |
52 | ||
53 | destroyed = 0; | |
54 | savetty(); | |
55 | if(initscr() == ERR){ | |
56 | puts("Whoops! No more memory..."); | |
57 | return(0); | |
58 | } | |
59 | oldsig = signal(SIGINT, succumb); | |
60 | crmode(); | |
61 | noecho(); | |
62 | screen(); | |
63 | row = rnd(LINES-3) + 1; | |
64 | column = rnd(COLS-2) + 1; | |
65 | moveenemy(); | |
66 | for (;;) { | |
67 | switch(getchar()){ | |
68 | ||
69 | case 'h': | |
70 | case 'r': | |
71 | dc = -1; | |
72 | fuel--; | |
73 | break; | |
74 | ||
75 | case 'H': | |
76 | case 'R': | |
77 | dc = -5; | |
78 | fuel -= 10; | |
79 | break; | |
80 | ||
81 | case 'l': | |
82 | dc = 1; | |
83 | fuel--; | |
84 | break; | |
85 | ||
86 | case 'L': | |
87 | dc = 5; | |
88 | fuel -= 10; | |
89 | break; | |
90 | ||
91 | case 'j': | |
92 | case 'u': | |
93 | dr = 1; | |
94 | fuel--; | |
95 | break; | |
96 | ||
97 | case 'J': | |
98 | case 'U': | |
99 | dr = 5; | |
100 | fuel -= 10; | |
101 | break; | |
102 | ||
103 | case 'k': | |
104 | case 'd': | |
105 | dr = -1; | |
106 | fuel--; | |
107 | break; | |
108 | ||
109 | case 'K': | |
110 | case 'D': | |
111 | dr = -5; | |
112 | fuel -= 10; | |
113 | break; | |
114 | ||
115 | case '+': | |
116 | if (cross){ | |
117 | cross = 0; | |
118 | notarget(); | |
119 | } | |
120 | else | |
121 | cross = 1; | |
122 | break; | |
123 | ||
124 | case ' ': | |
125 | case 'f': | |
126 | if (torps){ | |
127 | torps -= 2; | |
128 | blast(); | |
129 | if (row == MIDR && column - MIDC < 2 && MIDC - column < 2){ | |
130 | destroyed = 1; | |
131 | alarm(0); | |
132 | } | |
133 | } | |
134 | else | |
135 | mvaddstr(0,0,"*** Out of torpedoes. ***"); | |
136 | break; | |
137 | ||
138 | case 'q': | |
139 | endfly(); | |
140 | return(0); | |
141 | ||
142 | default: | |
143 | mvaddstr(0,26,"Commands = r,R,l,L,u,U,d,D,f,+,q"); | |
144 | continue; | |
145 | ||
146 | case EOF: | |
147 | break; | |
148 | } | |
149 | if (destroyed){ | |
150 | endfly(); | |
151 | return(1); | |
152 | } | |
153 | if (clock <= 0){ | |
154 | endfly(); | |
155 | die(); | |
156 | } | |
157 | } | |
158 | } | |
159 | ||
160 | screen() | |
161 | { | |
162 | register int r,c,n; | |
163 | int i; | |
164 | ||
165 | clear(); | |
166 | i = rnd(100); | |
167 | for (n=0; n < i; n++){ | |
168 | r = rnd(LINES-3) + 1; | |
169 | c = rnd(COLS); | |
170 | mvaddch(r, c, '.'); | |
171 | } | |
172 | mvaddstr(LINES-1-1,21,"TORPEDOES FUEL TIME"); | |
173 | refresh(); | |
174 | } | |
175 | ||
176 | target() | |
177 | { | |
178 | register int n; | |
179 | ||
180 | move(MIDR,MIDC-10); | |
181 | addstr("------- + -------"); | |
182 | for (n = MIDR-4; n < MIDR-1; n++){ | |
183 | mvaddch(n,MIDC,'|'); | |
184 | mvaddch(n+6,MIDC,'|'); | |
185 | } | |
186 | } | |
187 | ||
188 | notarget() | |
189 | { | |
190 | register int n; | |
191 | ||
192 | move(MIDR,MIDC-10); | |
193 | addstr(" "); | |
194 | for (n = MIDR-4; n < MIDR-1; n++){ | |
195 | mvaddch(n,MIDC,' '); | |
196 | mvaddch(n+6,MIDC,' '); | |
197 | } | |
198 | } | |
199 | ||
200 | blast() | |
201 | { | |
202 | register int n; | |
203 | ||
204 | alarm(0); | |
205 | move(LINES-1, 24); | |
206 | printw("%3d", torps); | |
207 | for(n = LINES-1-2; n >= MIDR + 1; n--){ | |
208 | mvaddch(n, MIDC+MIDR-n, '/'); | |
209 | mvaddch(n, MIDC-MIDR+n, '\\'); | |
210 | refresh(); | |
211 | } | |
212 | mvaddch(MIDR,MIDC,'*'); | |
213 | for(n = LINES-1-2; n >= MIDR + 1; n--){ | |
214 | mvaddch(n, MIDC+MIDR-n, ' '); | |
215 | mvaddch(n, MIDC-MIDR+n, ' '); | |
216 | refresh(); | |
217 | } | |
218 | alarm(1); | |
219 | } | |
220 | ||
221 | moveenemy() | |
222 | { | |
223 | double d; | |
224 | int oldr, oldc; | |
225 | ||
226 | oldr = row; | |
227 | oldc = column; | |
228 | if (fuel > 0){ | |
229 | if (row + dr <= LINES-3 && row + dr > 0) | |
230 | row += dr; | |
231 | if (column + dc < COLS-1 && column + dc > 0) | |
232 | column += dc; | |
233 | } else if (fuel < 0){ | |
234 | fuel = 0; | |
235 | mvaddstr(0,60,"*** Out of fuel ***"); | |
236 | } | |
237 | d = (double) ((row - MIDR)*(row - MIDR) + (column - MIDC)*(column - MIDC)); | |
238 | if (d < 16){ | |
239 | row += (rnd(9) - 4) % (4 - abs(row - MIDR)); | |
240 | column += (rnd(9) - 4) % (4 - abs(column - MIDC)); | |
241 | } | |
242 | clock--; | |
243 | mvaddstr(oldr, oldc - 1, " "); | |
244 | if (cross) | |
245 | target(); | |
246 | mvaddstr(row, column - 1, "/-\\"); | |
247 | move(LINES-1, 24); | |
248 | printw("%3d", torps); | |
249 | move(LINES-1, 42); | |
250 | printw("%3d", fuel); | |
251 | move(LINES-1, 57); | |
252 | printw("%3d", clock); | |
253 | refresh(); | |
254 | signal(SIGALRM, moveenemy); | |
255 | alarm(1); | |
256 | } | |
257 | ||
258 | endfly() | |
259 | { | |
260 | alarm(0); | |
261 | signal(SIGALRM, SIG_DFL); | |
262 | mvcur(0,COLS-1,LINES-1,0); | |
263 | endwin(); | |
264 | signal(SIGTSTP, SIG_DFL); | |
265 | signal(SIGINT, oldsig); | |
266 | } |