Commit | Line | Data |
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fdc7d56f EW |
1 | /* |
2 | * Copyright (c) 1983 Regents of the University of California, | |
3 | * All rights reserved. Redistribution permitted subject to | |
4 | * the terms of the Berkeley Software License Agreement. | |
5 | */ | |
6 | ||
77eecccb | 7 | #ifndef lint |
fdc7d56f | 8 | static char sccsid[] = "@(#)fly.c 1.3 %G%"; |
77eecccb EW |
9 | #endif |
10 | ||
11 | #include "externs.h" | |
12 | #undef UP | |
13 | #include <curses.h> | |
14 | ||
15 | #define abs(a) ((a) < 0 ? -(a) : (a)) | |
16 | #define MIDR (LINES/2 - 1) | |
17 | #define MIDC (COLS/2 - 1) | |
18 | ||
19 | int row, column; | |
20 | int dr = 0, dc = 0; | |
21 | char destroyed; | |
22 | int clock = 120; /* time for all the flights in the game */ | |
23 | char cross = 0; | |
24 | int (*oldsig)(); | |
25 | ||
26 | succumb() | |
27 | { | |
a7c71d1e EW |
28 | switch (oldsig) { |
29 | case SIG_DFL: | |
30 | endfly(); | |
31 | exit(1); | |
32 | case SIG_IGN: | |
33 | break; | |
34 | default: | |
35 | endfly(); | |
36 | (*oldsig)(); | |
37 | } | |
77eecccb EW |
38 | } |
39 | ||
40 | visual() | |
41 | { | |
42 | int moveenemy(); | |
43 | ||
44 | destroyed = 0; | |
45 | savetty(); | |
46 | if(initscr() == ERR){ | |
47 | puts("Whoops! No more memory..."); | |
48 | return(0); | |
49 | } | |
50 | oldsig = signal(SIGINT, succumb); | |
51 | crmode(); | |
52 | noecho(); | |
53 | screen(); | |
54 | row = rnd(LINES-3) + 1; | |
55 | column = rnd(COLS-2) + 1; | |
56 | moveenemy(); | |
57 | for (;;) { | |
58 | switch(getchar()){ | |
59 | ||
60 | case 'h': | |
61 | case 'r': | |
62 | dc = -1; | |
63 | fuel--; | |
64 | break; | |
65 | ||
66 | case 'H': | |
67 | case 'R': | |
68 | dc = -5; | |
69 | fuel -= 10; | |
70 | break; | |
71 | ||
72 | case 'l': | |
73 | dc = 1; | |
74 | fuel--; | |
75 | break; | |
76 | ||
77 | case 'L': | |
78 | dc = 5; | |
79 | fuel -= 10; | |
80 | break; | |
81 | ||
82 | case 'j': | |
83 | case 'u': | |
84 | dr = 1; | |
85 | fuel--; | |
86 | break; | |
87 | ||
88 | case 'J': | |
89 | case 'U': | |
90 | dr = 5; | |
91 | fuel -= 10; | |
92 | break; | |
93 | ||
94 | case 'k': | |
95 | case 'd': | |
96 | dr = -1; | |
97 | fuel--; | |
98 | break; | |
99 | ||
100 | case 'K': | |
101 | case 'D': | |
102 | dr = -5; | |
103 | fuel -= 10; | |
104 | break; | |
105 | ||
106 | case '+': | |
107 | if (cross){ | |
108 | cross = 0; | |
109 | notarget(); | |
110 | } | |
111 | else | |
112 | cross = 1; | |
113 | break; | |
114 | ||
115 | case ' ': | |
116 | case 'f': | |
117 | if (torps){ | |
118 | torps -= 2; | |
119 | blast(); | |
120 | if (row == MIDR && column - MIDC < 2 && MIDC - column < 2){ | |
121 | destroyed = 1; | |
122 | alarm(0); | |
123 | } | |
124 | } | |
125 | else | |
126 | mvaddstr(0,0,"*** Out of torpedoes. ***"); | |
127 | break; | |
128 | ||
129 | case 'q': | |
130 | endfly(); | |
131 | return(0); | |
132 | ||
133 | default: | |
134 | mvaddstr(0,26,"Commands = r,R,l,L,u,U,d,D,f,+,q"); | |
135 | continue; | |
136 | ||
137 | case EOF: | |
138 | break; | |
139 | } | |
140 | if (destroyed){ | |
141 | endfly(); | |
142 | return(1); | |
143 | } | |
144 | if (clock <= 0){ | |
145 | endfly(); | |
146 | die(); | |
147 | } | |
148 | } | |
149 | } | |
150 | ||
151 | screen() | |
152 | { | |
153 | register int r,c,n; | |
154 | int i; | |
155 | ||
156 | clear(); | |
157 | i = rnd(100); | |
158 | for (n=0; n < i; n++){ | |
159 | r = rnd(LINES-3) + 1; | |
160 | c = rnd(COLS); | |
161 | mvaddch(r, c, '.'); | |
162 | } | |
163 | mvaddstr(LINES-1-1,21,"TORPEDOES FUEL TIME"); | |
164 | refresh(); | |
165 | } | |
166 | ||
167 | target() | |
168 | { | |
169 | register int n; | |
170 | ||
171 | move(MIDR,MIDC-10); | |
172 | addstr("------- + -------"); | |
173 | for (n = MIDR-4; n < MIDR-1; n++){ | |
174 | mvaddch(n,MIDC,'|'); | |
175 | mvaddch(n+6,MIDC,'|'); | |
176 | } | |
177 | } | |
178 | ||
179 | notarget() | |
180 | { | |
181 | register int n; | |
182 | ||
183 | move(MIDR,MIDC-10); | |
184 | addstr(" "); | |
185 | for (n = MIDR-4; n < MIDR-1; n++){ | |
186 | mvaddch(n,MIDC,' '); | |
187 | mvaddch(n+6,MIDC,' '); | |
188 | } | |
189 | } | |
190 | ||
191 | blast() | |
192 | { | |
193 | register int n; | |
194 | ||
195 | alarm(0); | |
196 | move(LINES-1, 24); | |
197 | printw("%3d", torps); | |
198 | for(n = LINES-1-2; n >= MIDR + 1; n--){ | |
199 | mvaddch(n, MIDC+MIDR-n, '/'); | |
200 | mvaddch(n, MIDC-MIDR+n, '\\'); | |
201 | refresh(); | |
202 | } | |
203 | mvaddch(MIDR,MIDC,'*'); | |
204 | for(n = LINES-1-2; n >= MIDR + 1; n--){ | |
205 | mvaddch(n, MIDC+MIDR-n, ' '); | |
206 | mvaddch(n, MIDC-MIDR+n, ' '); | |
207 | refresh(); | |
208 | } | |
209 | alarm(1); | |
210 | } | |
211 | ||
212 | moveenemy() | |
213 | { | |
214 | double d; | |
215 | int oldr, oldc; | |
216 | ||
217 | oldr = row; | |
218 | oldc = column; | |
219 | if (fuel > 0){ | |
220 | if (row + dr <= LINES-3 && row + dr > 0) | |
221 | row += dr; | |
222 | if (column + dc < COLS-1 && column + dc > 0) | |
223 | column += dc; | |
224 | } else if (fuel < 0){ | |
225 | fuel = 0; | |
226 | mvaddstr(0,60,"*** Out of fuel ***"); | |
227 | } | |
228 | d = (double) ((row - MIDR)*(row - MIDR) + (column - MIDC)*(column - MIDC)); | |
229 | if (d < 16){ | |
230 | row += (rnd(9) - 4) % (4 - abs(row - MIDR)); | |
231 | column += (rnd(9) - 4) % (4 - abs(column - MIDC)); | |
232 | } | |
233 | clock--; | |
234 | mvaddstr(oldr, oldc - 1, " "); | |
235 | if (cross) | |
236 | target(); | |
237 | mvaddstr(row, column - 1, "/-\\"); | |
238 | move(LINES-1, 24); | |
239 | printw("%3d", torps); | |
240 | move(LINES-1, 42); | |
241 | printw("%3d", fuel); | |
242 | move(LINES-1, 57); | |
243 | printw("%3d", clock); | |
244 | refresh(); | |
245 | signal(SIGALRM, moveenemy); | |
246 | alarm(1); | |
247 | } | |
248 | ||
249 | endfly() | |
250 | { | |
251 | alarm(0); | |
252 | signal(SIGALRM, SIG_DFL); | |
253 | mvcur(0,COLS-1,LINES-1,0); | |
254 | endwin(); | |
255 | signal(SIGTSTP, SIG_DFL); | |
256 | signal(SIGINT, oldsig); | |
257 | } |