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| author | Edgar Fouillet <vlc@edgar.fouillet.eu> | 2019-11-03 21:05:54 +0100 |
|---|---|---|
| committer | jaseg <githubaccount@jaseg.net> | 2019-11-10 16:36:39 +0100 |
| commit | d92c9b91f7b24e52262923e564cd3c32d408814e (patch) | |
| tree | ad4603b77e99907717def0d5cdd96b84ed4c7b81 | |
| parent | 92831e54d870bf4b538e3603cc45129cb355c022 (diff) | |
| download | lolcat-d92c9b91f7b24e52262923e564cd3c32d408814e.tar.gz lolcat-d92c9b91f7b24e52262923e564cd3c32d408814e.tar.bz2 lolcat-d92c9b91f7b24e52262923e564cd3c32d408814e.zip | |
Add random option
| -rw-r--r-- | lolcat.c | 13 |
1 files changed, 11 insertions, 2 deletions
@@ -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) |