projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 9fdf2fe8 C |
1 | |
| 2 | static char sccsid[] = " rain.c 4.1 82/10/24 "; | |
| 3 | ||
| 4 | #include <stdio.h> | |
| 5 | #include <sgtty.h> | |
| 6 | #include <signal.h> | |
| 7 | /* rain 11/3/1980 EPS/CITHEP */ | |
| 8 | /* cc rain.c -o rain -O -ltermlib */ | |
| 9 | #define cursor(col,row) tputs(tgoto(CM,col,row),1,outc) | |
| 10 | outc(c) | |
| 11 | { | |
| 12 | putchar(c); | |
| 13 | } | |
| 14 | extern char *UP; | |
| 15 | extern short ospeed; | |
| 16 | struct sgttyb old_tty; | |
| 17 | char *LL, *TE, *TI; | |
| 18 | main(argc,argv) | |
| 19 | int argc; | |
| 20 | char *argv[]; | |
| 21 | { | |
| 22 | extern fputchar(); | |
| 23 | char *malloc(); | |
| 24 | char *getenv(); | |
| 25 | char *tgetstr(), *tgoto(); | |
| 26 | float ranf(); | |
| 27 | int onsig(); | |
| 28 | register int x, y, j; | |
| 29 | static int xpos[5], ypos[5]; | |
| 30 | register char *CM, *BC, *DN, *ND; | |
| 31 | char *tcp; | |
| 32 | register char *term; | |
| 33 | char tcb[100]; | |
| 34 | struct sgttyb sg; | |
| 35 | setbuf(stdout,malloc(BUFSIZ)); | |
| 36 | if (!(term=getenv("TERM"))) { | |
| 37 | fprintf(stderr,"%s: TERM: parameter not set\n",*argv); | |
| 38 | exit(1); | |
| 39 | } | |
| 40 | if (tgetent(malloc(1024),term)<=0) { | |
| 41 | fprintf(stderr,"%s: %s: unknown terminal type\n",*argv,term); | |
| 42 | exit(1); | |
| 43 | } | |
| 44 | tcp=tcb; | |
| 45 | if (!(CM=tgetstr("cm",&tcp))) { | |
| 46 | fprintf(stderr,"%s: terminal not capable of cursor motion\n",*argv); | |
| 47 | exit(1); | |
| 48 | } | |
| 49 | if (!(BC=tgetstr("bc",&tcp))) BC="\b"; | |
| 50 | if (!(DN=tgetstr("dn",&tcp))) DN="\n"; | |
| 51 | if (!(ND=tgetstr("nd",&tcp))) ND=" "; | |
| 52 | TE=tgetstr("te",&tcp); | |
| 53 | TI=tgetstr("ti",&tcp); | |
| 54 | UP=tgetstr("up",&tcp); | |
| 55 | if (!(LL=tgetstr("ll",&tcp))) strcpy(LL=malloc(10),tgoto(CM,0,23)); | |
| 56 | gtty(1, &sg); | |
| 57 | ospeed=sg.sg_ospeed; | |
| 58 | for (j=SIGHUP;j<=SIGTERM;j++) | |
| 59 | if (signal(j,SIG_IGN)!=SIG_IGN) signal(j,onsig); | |
| 60 | gtty(1, &old_tty); /* save tty bits for exit */ | |
| 61 | gtty(1, &sg); | |
| 62 | sg.sg_flags&=~(CRMOD|ECHO); | |
| 63 | stty(1, &sg); | |
| 64 | if (TI) fputs(TI,stdout); | |
| 65 | tputs(tgetstr("cl",&tcp),1,fputchar); | |
| 66 | fflush(stdout); | |
| 67 | for (j=5;--j>=0;) { | |
| 68 | xpos[j]=(int)(76.*ranf())+2; | |
| 69 | ypos[j]=(int)(20.*ranf())+2; | |
| 70 | } | |
| 71 | for (j=0;;) { | |
| 72 | x=(int)(76.*ranf())+2; | |
| 73 | y=(int)(20.*ranf())+2; | |
| 74 | cursor(x,y); fputchar('.'); | |
| 75 | cursor(xpos[j],ypos[j]); fputchar('o'); | |
| 76 | if (j==0) j=4; else --j; | |
| 77 | cursor(xpos[j],ypos[j]); fputchar('O'); | |
| 78 | if (j==0) j=4; else --j; | |
| 79 | cursor(xpos[j],ypos[j]-1); | |
| 80 | fputchar('-'); | |
| 81 | fputs(DN,stdout); fputs(BC,stdout); fputs(BC,stdout); | |
| 82 | fputs("|.|",stdout); | |
| 83 | fputs(DN,stdout); fputs(BC,stdout); fputs(BC,stdout); | |
| 84 | fputchar('-'); | |
| 85 | if (j==0) j=4; else --j; | |
| 86 | cursor(xpos[j],ypos[j]-2); fputchar('-'); | |
| 87 | fputs(DN,stdout); fputs(BC,stdout); fputs(BC,stdout); | |
| 88 | fputs("/ \\",stdout); | |
| 89 | cursor(xpos[j]-2,ypos[j]); | |
| 90 | fputs("| O |",stdout); | |
| 91 | cursor(xpos[j]-1,ypos[j]+1); | |
| 92 | fputs("\\ /",stdout); | |
| 93 | fputs(DN,stdout); fputs(BC,stdout); fputs(BC,stdout); | |
| 94 | fputchar('-'); | |
| 95 | if (j==0) j=4; else --j; | |
| 96 | cursor(xpos[j],ypos[j]-2); fputchar(' '); | |
| 97 | fputs(DN,stdout); fputs(BC,stdout); fputs(BC,stdout); | |
| 98 | fputchar(' '); fputs(ND,stdout); fputchar(' '); | |
| 99 | cursor(xpos[j]-2,ypos[j]); | |
| 100 | fputchar(' '); fputs(ND,stdout); fputchar(' '); | |
| 101 | fputs(ND,stdout); fputchar(' '); | |
| 102 | cursor(xpos[j]-1,ypos[j]+1); | |
| 103 | fputchar(' '); fputs(ND,stdout); fputchar(' '); | |
| 104 | fputs(DN,stdout); fputs(BC,stdout); fputs(BC,stdout); | |
| 105 | fputchar(' '); | |
| 106 | xpos[j]=x; ypos[j]=y; | |
| 107 | fflush(stdout); | |
| 108 | } | |
| 109 | } | |
| 110 | onsig(n) | |
| 111 | int n; | |
| 112 | { | |
| 113 | struct sgttyb sg; | |
| 114 | fputs(LL, stdout); | |
| 115 | if (TE) fputs(TE, stdout); | |
| 116 | fflush(stdout); | |
| 117 | stty(1, &old_tty); | |
| 118 | kill(getpid(),n); | |
| 119 | _exit(0); | |
| 120 | } | |
| 121 | fputchar(c) | |
| 122 | char c; | |
| 123 | { | |
| 124 | putchar(c); | |
| 125 | } | |
| 126 | float ranf() { | |
| 127 | return((float)rand()/2147483647.); | |
| 128 | } |