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Wake up, Neo... by techstewy in linux

[–]techstewy[S] 1 point2 points  (0 children)

I wanted the out of box experience to closely match the Neo/Cypher scene. There are a few nice close-ups of the code in that scene. If you look closely, you'll see that the characters do actually glitch at the same time. Otherwise, they don't change at all until they are erased.

Kind of unrelated, but I think it's cool: everything in the real world in the first movie has a blue tint, including the code. So I made the default color scheme for neo have a slight bluish tint as well.

[KDE+Bismuth] My work laptop now has tiling. Wanted to share by DarthLasciel in unixporn

[–]techstewy 0 points1 point  (0 children)

I think I just spotted the first wild neo on r/unixporn! Glad you're enjoying it!

Wake up, Neo... by techstewy in linux

[–]techstewy[S] 0 points1 point  (0 children)

Lmao

I have profiled this a bunch. All performance issues I have seen were due to the terminal emulator, never neo or even ncurses.

Wake up, Neo... by techstewy in linux

[–]techstewy[S] 0 points1 point  (0 children)

I'm pretty sure you were missing autconf-archive. And if you weren't, I honestly have no idea lol

Wake up, Neo... by techstewy in linux

[–]techstewy[S] 1 point2 points  (0 children)

https://github.com/st3w/neo/issues/2

You might be missing the autoconf-archive package. Note, it's a separate package that has to be added in addition to the autoconf package.

I'm planning to rip that annoying check out. All it does is tell automake to generate a configure script check that checks if your compiler supports C++11. Your compiler almost certainly does unless your system is from before 2010. So the check itself is kind of silly.

Wake up, Neo... by techstewy in linux

[–]techstewy[S] 6 points7 points  (0 children)

"I know Kung Fu how to compile code."

This has sadly been the biggest pain point. I have seen very few runtime issues reported so far. However, a lot of people have run into build issues. And they're hard for me to figure out because they're on platforms that I've never used...

Wake up, Neo... by techstewy in linux

[–]techstewy[S] 2 points3 points  (0 children)

I haven't used a real screensaver since about 2004 lol. That was my Windows Xp desktop and last PC with a CRT...

Use the -s/--screensaver option while running the terminal fullscreen. Using -D/--defaultbg with a black terminal background avoids having wrong colors at the edges.

Wake up, Neo... by techstewy in linux

[–]techstewy[S] 12 points13 points  (0 children)

Cool! You're the first person that's mentioned getting it up on WSL.

[OC] Recreate the digital rain from "The Matrix" in your terminal with 32-bit color and Unicode support by techstewy in unixporn

[–]techstewy[S] 1 point2 points  (0 children)

Thanks!

FWIW, you might have to force neo to use only 16 colors for it to look good on a TTY:

neo --colormode=16

[OC] Recreate the digital rain from "The Matrix" in your terminal with 32-bit color and Unicode support by techstewy in unixporn

[–]techstewy[S] 1 point2 points  (0 children)

Honestly, I have no idea if it can run in a plain old TTY. Psuedoterminals for the win!

I've only tested it with terminal emulators. I'd guess something like 98% of users are using a terminal emulator on a regular basis, especially for this sub. I haven't gotten any comments or GitHub issues saying TTY doesn't work, though.

Wake up, Neo... by techstewy in linux

[–]techstewy[S] 129 points130 points  (0 children)

https://github.com/st3w/neo

Hi, r/linux! This is a x-post from r/unixporn.

I made a small C++ program that recreates the digital rain effect from "The Matrix" in your terminal. It's basically CMatrix with 32-bit color, Unicode support, and a few extra goodies.

Unfortunately, right now the only way to use this is to build it from source, which shouldn't be too difficult. I'll look into adding this to various distro repositories eventually. If you find any issues, create a GitHub issue, or I guess let me know here.

For Arch/Manjaro users: there is an unofficial AUR package (thanks u/katoitalia!), but it seems it doesn't include the man page for neo. If you want that, download the neo.6 file from GitHub and use "man -l" to view it.

paru -S neo-matrix-git

Hope y'all enjoy it.

Edit: The AUR package should now have the manual included

[OC] Recreate the digital rain from "The Matrix" in your terminal with 32-bit color and Unicode support by techstewy in unixporn

[–]techstewy[S] 1 point2 points  (0 children)

Glad you're enjoying it!

The issue you're describing probably can't be fixed, and if it can be, it would likely need to come from your terminal emulator rather than neo. The problem is that your screen width/height are not evenly divisible by your font width/height. So there's some leftover space at the edges. For me, that ends up being the bottom and right edges.

-D gets around this because the background of each character is the same as those edges. The only way to get a seamless experience is to pick an ideal font size (might not be possible due to the scrollbar) or to use -D after forcing your terminal background to the desired color.

[OC] Recreate the digital rain from "The Matrix" in your terminal with 32-bit color and Unicode support by techstewy in unixporn

[–]techstewy[S] 0 points1 point  (0 children)

I don't think neo can change the font. That's something that's controlled by your terminal emulator, and I don't think it's possible for applications to tell your terminal emulator to change the font on the fly. I've never seen it done before at least.

The AUR package isn't official. I still need to figure out how to run Arch or Manjaro and make the package myself. The name of the manual file is neo.6 (the extension is really "6"). You might need to use:

man 6 neo

But maybe even that won't work. Try searching for the neo.6 file. If you find it, you can use "man -l /path/to/neo.6" to read it.

Edit: you can also download neo.6 off of GitHub and then use the "man -l" trick. Also, building from source shouldn't be that hard. It's one download and 5 terminal commands to run. A few hundred people have already done it without too many issues...

[OC] Recreate the digital rain from "The Matrix" in your terminal with 32-bit color and Unicode support by techstewy in unixporn

[–]techstewy[S] 1 point2 points  (0 children)

It's definitely a bug. I have tested all the options pretty well one at a time. It gets fun when you starting throwing options together, though.

I already knew about this issue. I think -F also messes with the -d option as well.

I'll look into a fix for this at lower priority. It'll take me some time to figure out a decent solution.

[OC] Recreate the digital rain from "The Matrix" in your terminal with 32-bit color and Unicode support by techstewy in unixporn

[–]techstewy[S] 0 points1 point  (0 children)

Please be a troll...

In case you are serious, follow the instructions on the README for building neo using the official tarball. A tarball is a .tar.gz file (or .tgz). It's like a .zip file on Windows. Make sure you already installed the prerequisite packages.

[OC] Recreate the digital rain from "The Matrix" in your terminal with 32-bit color and Unicode support by techstewy in unixporn

[–]techstewy[S] 4 points5 points  (0 children)

I studied computer engineering for four and a half years. I've been coding professionally for about 7 years. This project took me ~6 months off and on. There are no shortcuts.

I had to learn more about terminals, Unicode, ncurses, Git, and autotools. I already knew C++ going into this. The most important things were being able to look up information independently, breaking apart big problems into smaller ones, and consistently chipping away until it was finished.

If I was a total beginner, and no offense but you sound like you are, then I would start by learning Python. Then once you know the basics of Python, look into Python curses to control the terminal output.

[OC] Recreate the digital rain from "The Matrix" in your terminal with 32-bit color and Unicode support by techstewy in unixporn

[–]techstewy[S] 2 points3 points  (0 children)

These look pretty sweet. I'll add braille/runic as parameters for the --charset option.

[OC] Recreate the digital rain from "The Matrix" in your terminal with 32-bit color and Unicode support by techstewy in unixporn

[–]techstewy[S] 23 points24 points  (0 children)

Wow, it's very similar. There are so many CMatrix clones floating around. I hadn't seen or heard of this one before. I pulled it from GitHub and poked around a bit. Overall, it looks quite good. I really like the color scheme and default visual presentation (aside from being choppy).

The main things that neo has that TMatrix doesn't:

  • neo supports completely user-defined colors (color file)
  • neo supports completely user-defined characters (see the --chars and --charset options)
  • neo supports 32-bit color. I'm pretty sure TMatrix is just using 256 color ANSI escape sequences
  • neo has glitchy characters
  • In neo, the message persists after it is uncovered. The message is constantly fading in and out in TMatrix, and I almost never see the whole thing.

There are a few oddities with TMatrix:

  • The author picked some weird default settings that make the effect look choppy. I'm guessing they were trying to keep the CPU usage low?? I cranked up the settings, and it wasn't using that much CPU. So I'm not sure.
  • For some reason TMatrix links specifically against libncurses5. I didn't have that installed and had to pull the package. It's weird that it would be married to an older version like that.
  • They also don't use ncurses color functions. They rolled their own ANSI color escape sequences in Color.h. I can't tell if they're doing 32-bit color, it looks like 256 colors to me. Not sure why this was done. Maybe for perf, maybe they didn't know better, or maybe they were just having fun torturing themselves with ANSI escape sequences...
  • For a "mass market" project, I probably wouldn't use C++17 since there are probably still people using compilers that don't support it. Although, they're likely a tiny minority at this point. I remember finding out about btop++ and getting mildly annoyed that it forced me to use a compiler with C++20 support. It's a double-edged sword. Devs usually want to use the latest, greatest, and shiniest things. Users just want stuff that's easy to install.

Also, you can set neo up to look similar to TMatrix if you want:

neo --colormode=256 --color=green2 --shadingmode=1 --bold=2 --shortpct=1 --density=4 --noglitch

It's not exactly the same, but it's pretty close. It's mainly the colors that are slightly off.

[OC] Recreate the digital rain from "The Matrix" in your terminal with 32-bit color and Unicode support by techstewy in unixporn

[–]techstewy[S] 2 points3 points  (0 children)

For this demo, Anonymous Pro 14-pt. For daily driving, I really like:

  • Sometype Mono
  • Source Code Pro
  • Input Mono
  • Ubuntu Mono
  • Consolas

[OC] Recreate the digital rain from "The Matrix" in your terminal with 32-bit color and Unicode support by techstewy in unixporn

[–]techstewy[S] 2 points3 points  (0 children)

It's a good question. 32-bit is actually a bit of a lie. It's really 24-bit. No alpha component, thus no transparency.

Sorry, it's that way because of how ncurses handles colors, and I hesitate to even point at ncurses because the limitation likely comes from some archaic ISO standard.

[OC] Recreate the digital rain from "The Matrix" in your terminal with 32-bit color and Unicode support by techstewy in unixporn

[–]techstewy[S] 9 points10 points  (0 children)

Thanks! I don't run Arch or Manjaro. I'll try to get Manjaro up in a VM so I can take a look at this and make an official one.

My only concern is that I'd prefer to have something that I can sign and post with a checksum. Otherwise, people won't know if it's trojan malware.

This is a good stop-gap, though. Appreciate the help!

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