jaseg/lolcat
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add random option

Browse source
This commit is contained in:
Edgar Fouillet 2019-11-03 21:05:54 +01:00 • committed by jaseg
parent 92831e54d8
commit d92c9b91f7
1 changed files with 11 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

13
lolcat.c
View file

@ -37,6 +37,7 @@ static char helpstr[] = "\n"
" -v <d>: Vertical rainbow frequency (default: 0.1)\n"
" -f: Force color even when stdout is not a tty\n"
" -l: Use encoding from system locale instead of assuming UTF-8\n"
" -r: Random colors\n"
" --version: Print version and exit\n"
" --help: Show this message\n"
"\n"
@ -94,6 +95,7 @@ int main(int argc, char** argv)
wint_t c;
int colors = isatty(STDOUT_FILENO);
int force_locale = 1;
int random = 0;
double freq_h = 0.23, freq_v = 0.1;
struct timeval tv;
@ -122,6 +124,8 @@ int main(int argc, char** argv)
colors = 1;
} else if (!strcmp(argv[i], "-l")) {
force_locale = 0;
} else if (!strcmp(argv[i], "-r")) {
random = 1;
} else if (!strcmp(argv[i], "--version")) {
version();
} else {
@ -131,6 +135,11 @@ int main(int argc, char** argv)
}
}
int rand_offset = 0;
if (random) {
srand(time(NULL));
rand_offset = rand();
}
char** inputs = argv + i;
char** inputs_end = argv + argc;
if (inputs == inputs_end) {
@ -178,7 +187,7 @@ int main(int argc, char** argv)
} else {
int ncc = offx * ARRAY_SIZE(codes) + (int)((i += wcwidth(c)) * freq_h + l * freq_v);
if (cc != ncc)
wprintf(L"\033[38;5;%hhum", codes[(cc = ncc) % ARRAY_SIZE(codes)]);
wprintf(L"\033[38;5;%hhum", codes[(rand_offset + (cc = ncc)) % ARRAY_SIZE(codes)]);
}
}
}
@ -186,7 +195,7 @@ int main(int argc, char** argv)
putwchar(c);
if (escape_state == 2)
wprintf(L"\033[38;5;%hhum", codes[cc % ARRAY_SIZE(codes)]);
wprintf(L"\033[38;5;%hhum", codes[(rand_offset + cc) % ARRAY_SIZE(codes)]);
}
if (colors)