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e0bbfbf9 | 1 | /* |
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2 | * Copyright (c) 1980, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
a9361314 | 4 | * |
abde58c2 | 5 | * %sccs.include.redist.c% |
e0bbfbf9 | 6 | */ |
d5bda5f3 | 7 | |
e0bbfbf9 | 8 | #ifndef lint |
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9 | static char copyright[] = |
10 | "@(#) Copyright (c) 1980, 1993\n\ | |
11 | The Regents of the University of California. All rights reserved.\n"; | |
a9361314 | 12 | #endif /* not lint */ |
e0bbfbf9 DF |
13 | |
14 | #ifndef lint | |
2dd6548c | 15 | static char sccsid[] = "@(#)rain.c 8.1 (Berkeley) %G%"; |
a9361314 | 16 | #endif /* not lint */ |
d5bda5f3 | 17 | |
a9361314 KB |
18 | /* |
19 | * rain 11/3/1980 EPS/CITHEP | |
20 | * cc rain.c -o rain -O -ltermlib | |
21 | */ | |
4334b5fc | 22 | |
a9361314 | 23 | #include <sys/types.h> |
d5bda5f3 | 24 | #include <stdio.h> |
4334b5fc KM |
25 | #ifdef USG |
26 | #include <termio.h> | |
27 | #else | |
d5bda5f3 | 28 | #include <sgtty.h> |
4334b5fc | 29 | #endif |
d5bda5f3 | 30 | #include <signal.h> |
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31 | |
32 | #define cursor(c, r) tputs(tgoto(CM, c, r), 1, fputchar) | |
33 | ||
4334b5fc | 34 | #ifdef USG |
a9361314 | 35 | static struct termio sg, old_tty; |
4334b5fc | 36 | #else |
a9361314 | 37 | static struct sgttyb sg, old_tty; |
4334b5fc | 38 | #endif |
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39 | |
40 | int fputchar(); | |
41 | char *LL, *TE, *tgoto(); | |
42 | ||
43 | main(argc, argv) | |
44 | int argc; | |
45 | char **argv; | |
d5bda5f3 | 46 | { |
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47 | extern short ospeed; |
48 | extern char *UP; | |
49 | register int x, y, j; | |
50 | register char *CM, *BC, *DN, *ND, *term; | |
51 | char *TI, *tcp, *mp, tcb[100], | |
52 | *malloc(), *getenv(), *strcpy(), *tgetstr(); | |
53 | long cols, lines, random(); | |
786b3585 KB |
54 | int xpos[5], ypos[5]; |
55 | static void onsig(); | |
4334b5fc | 56 | |
a9361314 KB |
57 | if (!(term = getenv("TERM"))) { |
58 | fprintf(stderr, "%s: TERM: parameter not set\n", *argv); | |
59 | exit(1); | |
60 | } | |
61 | if (!(mp = malloc((u_int)1024))) { | |
62 | fprintf(stderr, "%s: out of space.\n", *argv); | |
63 | exit(1); | |
64 | } | |
65 | if (tgetent(mp, term) <= 0) { | |
66 | fprintf(stderr, "%s: %s: unknown terminal type\n", *argv, term); | |
67 | exit(1); | |
68 | } | |
69 | tcp = tcb; | |
70 | if (!(CM = tgetstr("cm", &tcp))) { | |
71 | fprintf(stderr, "%s: terminal not capable of cursor motion\n", *argv); | |
72 | exit(1); | |
73 | } | |
74 | if (!(BC = tgetstr("bc", &tcp))) | |
75 | BC = "\b"; | |
76 | if (!(DN = tgetstr("dn", &tcp))) | |
77 | DN = "\n"; | |
78 | if (!(ND = tgetstr("nd", &tcp))) | |
79 | ND = " "; | |
80 | if ((cols = tgetnum("co")) == -1) | |
81 | cols = 80; | |
82 | if ((lines = tgetnum("li")) == -1) | |
83 | lines = 24; | |
84 | cols -= 4; | |
85 | lines -= 4; | |
86 | TE = tgetstr("te", &tcp); | |
87 | TI = tgetstr("ti", &tcp); | |
88 | UP = tgetstr("up", &tcp); | |
89 | if (!(LL = tgetstr("ll", &tcp))) { | |
90 | if (!(LL = malloc((u_int)10))) { | |
91 | fprintf(stderr, "%s: out of space.\n", *argv); | |
92 | exit(1); | |
93 | } | |
94 | (void)strcpy(LL, tgoto(CM, 0, 23)); | |
95 | } | |
4334b5fc | 96 | #ifdef USG |
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97 | ioctl(1, TCGETA, &sg); |
98 | ospeed = sg.c_cflag&CBAUD; | |
4334b5fc | 99 | #else |
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100 | gtty(1, &sg); |
101 | ospeed = sg.sg_ospeed; | |
4334b5fc | 102 | #endif |
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103 | (void)signal(SIGHUP, onsig); |
104 | (void)signal(SIGINT, onsig); | |
105 | (void)signal(SIGQUIT, onsig); | |
106 | (void)signal(SIGSTOP, onsig); | |
107 | (void)signal(SIGTSTP, onsig); | |
108 | (void)signal(SIGTERM, onsig); | |
4334b5fc | 109 | #ifdef USG |
a9361314 KB |
110 | ioctl(1, TCGETA, &old_tty); /* save tty bits for exit */ |
111 | ioctl(1, TCGETA, &sg); | |
112 | sg.c_iflag &= ~ICRNL; | |
113 | sg.c_oflag &= ~ONLCR; | |
114 | sg.c_lflag &= ~ECHO; | |
115 | ioctl(1, TCSETAW, &sg); | |
4334b5fc | 116 | #else |
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117 | gtty(1, &old_tty); /* save tty bits for exit */ |
118 | gtty(1, &sg); | |
119 | sg.sg_flags &= ~(CRMOD|ECHO); | |
120 | stty(1, &sg); | |
4334b5fc | 121 | #endif |
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122 | if (TI) |
123 | tputs(TI, 1, fputchar); | |
124 | tputs(tgetstr("cl", &tcp), 1, fputchar); | |
125 | (void)fflush(stdout); | |
126 | for (j = 4; j >= 0; --j) { | |
127 | xpos[j] = random() % cols + 2; | |
128 | ypos[j] = random() % lines + 2; | |
129 | } | |
130 | for (j = 0;;) { | |
131 | x = random() % cols + 2; | |
132 | y = random() % lines + 2; | |
133 | cursor(x, y); | |
134 | fputchar('.'); | |
135 | cursor(xpos[j], ypos[j]); | |
136 | fputchar('o'); | |
137 | if (!j--) | |
138 | j = 4; | |
139 | cursor(xpos[j], ypos[j]); | |
140 | fputchar('O'); | |
141 | if (!j--) | |
142 | j = 4; | |
143 | cursor(xpos[j], ypos[j] - 1); | |
144 | fputchar('-'); | |
145 | tputs(DN, 1, fputchar); | |
146 | tputs(BC, 1, fputchar); | |
147 | tputs(BC, 1, fputchar); | |
148 | fputs("|.|", stdout); | |
149 | tputs(DN, 1, fputchar); | |
150 | tputs(BC, 1, fputchar); | |
151 | tputs(BC, 1, fputchar); | |
152 | fputchar('-'); | |
153 | if (!j--) | |
154 | j = 4; | |
155 | cursor(xpos[j], ypos[j] - 2); | |
156 | fputchar('-'); | |
157 | tputs(DN, 1, fputchar); | |
158 | tputs(BC, 1, fputchar); | |
159 | tputs(BC, 1, fputchar); | |
160 | fputs("/ \\", stdout); | |
161 | cursor(xpos[j] - 2, ypos[j]); | |
162 | fputs("| O |", stdout); | |
163 | cursor(xpos[j] - 1, ypos[j] + 1); | |
164 | fputs("\\ /", stdout); | |
165 | tputs(DN, 1, fputchar); | |
166 | tputs(BC, 1, fputchar); | |
167 | tputs(BC, 1, fputchar); | |
168 | fputchar('-'); | |
169 | if (!j--) | |
170 | j = 4; | |
171 | cursor(xpos[j], ypos[j] - 2); | |
172 | fputchar(' '); | |
173 | tputs(DN, 1, fputchar); | |
174 | tputs(BC, 1, fputchar); | |
175 | tputs(BC, 1, fputchar); | |
176 | fputchar(' '); | |
177 | tputs(ND, 1, fputchar); | |
178 | fputchar(' '); | |
179 | cursor(xpos[j] - 2, ypos[j]); | |
180 | fputchar(' '); | |
181 | tputs(ND, 1, fputchar); | |
182 | fputchar(' '); | |
183 | tputs(ND, 1, fputchar); | |
184 | fputchar(' '); | |
185 | cursor(xpos[j] - 1, ypos[j] + 1); | |
186 | fputchar(' '); | |
187 | tputs(ND, 1, fputchar); | |
188 | fputchar(' '); | |
189 | tputs(DN, 1, fputchar); | |
190 | tputs(BC, 1, fputchar); | |
191 | tputs(BC, 1, fputchar); | |
192 | fputchar(' '); | |
193 | xpos[j] = x; | |
194 | ypos[j] = y; | |
195 | (void)fflush(stdout); | |
196 | } | |
d5bda5f3 | 197 | } |
a9361314 | 198 | |
786b3585 | 199 | static void |
a9361314 | 200 | onsig() |
d5bda5f3 | 201 | { |
a9361314 KB |
202 | tputs(LL, 1, fputchar); |
203 | if (TE) | |
204 | tputs(TE, 1, fputchar); | |
205 | (void)fflush(stdout); | |
4334b5fc | 206 | #ifdef USG |
a9361314 | 207 | ioctl(1, TCSETAW, &old_tty); |
4334b5fc | 208 | #else |
a9361314 | 209 | stty(1, &old_tty); |
4334b5fc | 210 | #endif |
a9361314 | 211 | exit(0); |
d5bda5f3 | 212 | } |
a9361314 | 213 | |
308751ef | 214 | int |
d5bda5f3 | 215 | fputchar(c) |
308751ef | 216 | int c; |
d5bda5f3 | 217 | { |
a9361314 | 218 | putchar(c); |
d5bda5f3 | 219 | } |