Neo - Simulates the digital rain from "The Matrix" (cmatrix clone with 32-bit color and Unicode support)

Last update: Dec 28, 2022

Overview

neo

WARNING: neo may cause discomfort and seizures in people with photosensitive epilepsy. User discretion is advised.

neo recreates the digital rain effect from "The Matrix". Streams of random characters will endlessly scroll down your terminal screen.

Cool features:

Simulates the effect convincingly:
- Similar color palatte and uneven colors
- Glitchy characters
- Half-width katakana characters
Can display a message similar to the title crawl in the movies
Unicode support
Supports 16/256 colors and 32-bit color
Automatic detection of terminal color and Unicode support
Handles terminal resizing
Fully customizable colors and characters
Many key controls and command-line options for customization

neo is best enjoyed with some good Scotch while listening to Aphex Twin and working on tech.

Prerequisites/Dependencies

neo works with Linux and other UNIX-like operating systems such as macOS and FreeBSD. Native Windows is not supported, but it is possible to run neo using WSL.

The following packages are required to build and run neo:

build-essential: make and g++ are used to build neo
libncurses-dev: neo uses the ncursesw library to control the terminal
autoconf: neo is built using autotools (NOT NEEDED if using an official release tarball)

Ensure that your C++ compiler supports C++11 and that your autoconf version is at least 2.61. g++ and clang++ both work for compilation.

If you want to see Unicode characters, you must use a font that supports the characters you are trying to display. Your OS must have the font, and your terminal must use it. Your locale should have Unicode support (usually UTF-8). Check your $LANG environment variable.

A fast terminal emulator such as Alacritty is highly recommended. neo can be a bit of a CPU hog, especially on large screens with slow terminal emulators.

Building and Installing

Make sure you have read the Prerequisites section and satisified all the requirements. See doc/INSTALL for more details.

Option 1: Using an official release tarball

Click on the latest release on this GitHub page. Under the Assets pane, click on neo-<VERSION>.tar.gz and save it somewhere. Ignore the other "Source code" files.

Open a terminal and navigate to wherever you saved the tarball. Run the following commands:

# Only for macOS with Homebrew
export LDFLAGS="-L/opt/homebrew/opt/ncurses/lib"
export CPPFLAGS="-I/opt/homebrew/opt/ncurses/include"
# End of macOS Homebrew commands

tar xzf neo-<VERSION>.tar.gz
cd neo-<VERSION>
./configure
make
sudo make install

Option 2: Building from this repo

Clone this repository, open a terminal, and navigate to the repo directory.

Run the following commands:

./autogen.sh
./configure
make -j3
sudo make install

Uninstalling

To uninstall neo, run the following command from the directory where you built neo:

sudo make uninstall

neo can also be manually uninstalled by simply deleting the installed neo executable and neo.6 man page.

Running

Once neo is installed, simply run:

neo

neo has many options and key controls, arguably too many, and definitely too many to list here. Check the help message and manual for more info:

neo -h
man neo

Screenshots

FAQ/Troubleshooting

Q: neo displays garbage characters on the screen. How can this be fixed?

A: neo will attempt to use half-width katakana characters by default. You may not have a font installed that can display them correctly, or your terminal might not support Unicode well. Try "--charset=ascii" or changing your font. You may also need to use the "--colormode=0" option to disable color.

Q: Colors aren't working. How can this be fixed?

A: Make sure your terminal supports colors. Double check if you need to set the TERM environment variable to enable colors. You may want to try the "--colormode" option.

Q: How do I disable the blinking characters?

A: Use the --noglitch option.

Q: Can I make the text scroll faster or slower?

A: Yes, use the -S/--speed option. Also, the UP and DOWN keys change the speed. The --async option may be fun to try.

Q: How do I change the colors?

A: Use the -c/--color option (e.g. "-c red"). The number keys also change the color while running. Check out the "COLOR FILE" section in the manual if you want to customize neo with your own colors.

Q: How do I change the characters displayed?

A: Use the --charset and/or --chars option. You may also need to use the -F/--fullwidth option depending on the characters you selected.

Q: How do I display a message in the center of the screen?

A: Use the -m/--message option. Don't forget to use double quotes!

Q: neo just shows simple ASCII characters. How can I make it show Unicode characters?

A: neo detects if your locale supports Unicode. Typically, your $LANG environment variable should have "UTF" somewhere if it does (e.g. "en_US.UTF-8"). You can use commands such as localectl to change these settings. You can force neo to attempt to use Unicode by setting a custom charset (e.g. --charset=extended), but this still may not work due to other OS and terminal settings.

Bugs

File a GitHub issue. Crashes and build failures will be prioritized. Minor bugs, documentation errors, etc should hopefully get triaged and fixed... eventually.

Contributing

See doc/HACKING for more implementation details and a list of things that could be improved.

Requests for enhancement (RFEs) are not likely to be considered or implemented unless they are:

Within the scope of the original application
Simple
Likely to be used by more than one person

The original author deliberately avoided some features present in similar projects (e.g. custom fonts and Windows support) for simplicity.

Pull requests will be handled in a similar manner. Pull requests for bug fixes are more likely to be accepted than new features.

Acknowledgments

Chris Allegretta, the original author of cmatrix, and Abishek V Ashok, its current maintainer. cmatrix was a source of inspiration for neo.
Thomas E. Dickey, because neo would have been a PITA to write without ncursesw
Everyone involved in the production of "The Matrix" and the rest of the franchise

License

neo is provided under the GNU GPL v3. See doc/COPYING for more details.

Disclaimer

This project is not affiliated with "The Matrix", Warner Bros. Entertainment Inc., Village Roadshow Pictures, Silver Pictures, nor any of their parent companies, subsidiaries, partners, or affiliates.

Comments

Compilation fails both with gcc++ and clang on Gentoo Linux

I tried to compile neo from source according to instructions both in Readme and from docs/install. Building fails with similar errors, both when using git clone and from release page source (both from source code and official release tarball). I'm using latest (in gentoo it is "testing") version of both ncurses (6.3) and autoconf (2.71). I've tried it on two machines with the same result, both running gentoo, the other is using stable version of ncurses (6.2). Also tried using build directory and compiling there, again no luck for me.

This is terminal output when compiling with gcc++:

[email protected] ~/neo/neo-0.6 $ ./autogen.sh 
configure.ac:4: installing 'build-aux/install-sh'
configure.ac:4: installing 'build-aux/missing'
src/Makefile.am: installing 'build-aux/depcomp'
[email protected] ~/neo/neo-0.6 $ ./configure 
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a race-free mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking for g++... g++
checking whether the C++ compiler works... yes
checking for C++ compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C++... yes
checking whether g++ accepts -g... yes
checking for g++ option to enable C++11 features... none needed
checking whether make supports the include directive... yes (GNU style)
checking dependency style of g++... gcc3
checking whether make sets $(MAKE)... (cached) yes
checking for initscr in -lncursesw... yes
checking for stdio.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for strings.h... yes
checking for sys/stat.h... yes
checking for sys/types.h... yes
checking for unistd.h... yes
checking for getopt.h... yes
checking for locale.h... yes
checking for ncurses.h... yes
checking whether g++ supports C++11 features with -std=c++11... yes
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating doc/Makefile
config.status: creating src/Makefile
config.status: executing depfiles commands
[email protected] ~/neo/neo-0.6 $ make
Making all in doc
make[1]: Entering directory '/home/kenny2/neo/neo-0.6/doc'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/kenny2/neo/neo-0.6/doc'
Making all in src
make[1]: Entering directory '/home/kenny2/neo/neo-0.6/src'
g++ -std=c++11 -DPACKAGE_NAME=\"neo\" -DPACKAGE_TARNAME=\"neo\" -DPACKAGE_VERSION=\"0.6\" -DPACKAGE_STRING=\"neo\ 0.6\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -DPACKAGE=\"neo\" -DVERSION=\"0.6\" -DHAVE_LIBNCURSESW=1 -DHAVE_STDIO_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_STRINGS_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_UNISTD_H=1 -DSTDC_HEADERS=1 -DHAVE_GETOPT_H=1 -DHAVE_LOCALE_H=1 -DHAVE_NCURSES_H=1 -DHAVE_CXX11=1 -I.    -DNCURSES_WIDECHAR -std=c++11 -g -O2 -MT cloud.o -MD -MP -MF .deps/cloud.Tpo -c -o cloud.o cloud.cpp
cloud.cpp: In member function ‘void Cloud::CalcMessage()’:
cloud.cpp:852:9: error: ‘mvinnwstr’ was not declared in this scope; did you mean ‘mvinnstr’?
  852 |         mvinnwstr(msgChar.line, msgChar.col, wc, 1);
      |         ^~~~~~~~~
      |         mvinnstr
cloud.cpp: In member function ‘void Cloud::DrawMessage() const’:
cloud.cpp:870:9: error: ‘mvadd_wch’ was not declared in this scope; did you mean ‘mvaddch’?
  870 |         mvadd_wch(msgChar.line, msgChar.col, &wc);
      |         ^~~~~~~~~
      |         mvaddch
make[1]: *** [Makefile:374: cloud.o] Error 1
make[1]: Leaving directory '/home/kenny2/neo/neo-0.6/src'
make: *** [Makefile:336: all-recursive] Error 1

and this is result when compiling with clang:

[email protected] ~/neo/neo-0.6 $ ./autogen.sh 
configure.ac:4: installing 'build-aux/install-sh'
configure.ac:4: installing 'build-aux/missing'
src/Makefile.am: installing 'build-aux/depcomp'
[email protected] ~/neo/neo-0.6 $ ./configure CXXFLAGS="-Os -march=native -mtune=native -DNDEBUG -fno-exceptions -ffunction-sections -fdata-sections -flto" LDFLAGS="-Wl,--gc-sections -flto" CXX="clang++"
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a race-free mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether the C++ compiler works... yes
checking for C++ compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C++... yes
checking whether clang++ accepts -g... yes
checking for clang++ option to enable C++11 features... none needed
checking whether make supports the include directive... yes (GNU style)
checking dependency style of clang++... gcc3
checking whether make sets $(MAKE)... (cached) yes
checking for initscr in -lncursesw... yes
checking for stdio.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for strings.h... yes
checking for sys/stat.h... yes
checking for sys/types.h... yes
checking for unistd.h... yes
checking for getopt.h... yes
checking for locale.h... yes
checking for ncurses.h... yes
checking whether clang++ supports C++11 features with -std=c++11... yes
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating doc/Makefile
config.status: creating src/Makefile
config.status: executing depfiles commands
[email protected] ~/neo/neo-0.6 $ make
Making all in doc
make[1]: Entering directory '/home/kenny2/neo/neo-0.6/doc'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/kenny2/neo/neo-0.6/doc'
Making all in src
make[1]: Entering directory '/home/kenny2/neo/neo-0.6/src'
clang++ -std=c++11 -DPACKAGE_NAME=\"neo\" -DPACKAGE_TARNAME=\"neo\" -DPACKAGE_VERSION=\"0.6\" -DPACKAGE_STRING=\"neo\ 0.6\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -DPACKAGE=\"neo\" -DVERSION=\"0.6\" -DHAVE_LIBNCURSESW=1 -DHAVE_STDIO_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_STRINGS_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_UNISTD_H=1 -DSTDC_HEADERS=1 -DHAVE_GETOPT_H=1 -DHAVE_LOCALE_H=1 -DHAVE_NCURSES_H=1 -DHAVE_CXX11=1 -I.    -DNCURSES_WIDECHAR -std=c++11 -Os -march=native -mtune=native -DNDEBUG -fno-exceptions -ffunction-sections -fdata-sections -flto -MT cloud.o -MD -MP -MF .deps/cloud.Tpo -c -o cloud.o cloud.cpp
cloud.cpp:852:9: error: use of undeclared identifier 'mvinnwstr'; did you mean 'mvinnstr'?
        mvinnwstr(msgChar.line, msgChar.col, wc, 1);
        ^~~~~~~~~
        mvinnstr
/usr/include/curses.h:707:28: note: 'mvinnstr' declared here
extern NCURSES_EXPORT(int) mvinnstr (int, int, char *, int);            /* generated */
                           ^
cloud.cpp:852:46: error: cannot initialize a parameter of type 'char *' with an lvalue of type 'wchar_t [2]'
        mvinnwstr(msgChar.line, msgChar.col, wc, 1);
                                             ^~
/usr/include/curses.h:707:54: note: passing argument to parameter here
extern NCURSES_EXPORT(int) mvinnstr (int, int, char *, int);            /* generated */
                                                     ^
cloud.cpp:870:9: error: use of undeclared identifier 'mvadd_wch'; did you mean 'mvaddch'?
        mvadd_wch(msgChar.line, msgChar.col, &wc);
        ^~~~~~~~~
        mvaddch
/usr/include/curses.h:691:28: note: 'mvaddch' declared here
extern NCURSES_EXPORT(int) mvaddch (int, int, const chtype);            /* generated */
                           ^
cloud.cpp:870:46: error: cannot initialize a parameter of type 'chtype' (aka 'unsigned int') with an rvalue of type 'cchar_t *'
        mvadd_wch(msgChar.line, msgChar.col, &wc);
                                             ^~~
/usr/include/curses.h:691:59: note: passing argument to parameter here
extern NCURSES_EXPORT(int) mvaddch (int, int, const chtype);            /* generated */
                                                          ^
4 errors generated.
make[1]: *** [Makefile:374: cloud.o] Error 1
make[1]: Leaving directory '/home/kenny2/neo/neo-0.6/src'
make: *** [Makefile:336: all-recursive] Error 1

EDIT: fixed formatting and added info on my second gentoo machine

bug

opened by byeCl0ud 21

issue with the lines appearing in a instant no matter the speed

hey it is me again! this time after compiling succesfully with the help of st3w the program work as intended...but the lines are not drawed one characters at the time, it's just : one line, one line, etc the speed argument won't change anything, well yes actually it change the speed at which the lines pop but not the drawing speed in itself (the fps option also dosen't do anything)
bug

opened by Reaster0 9
configure error

On M1 Mac, run ./configure will get this error:

./configure: line 3850: syntax error near unexpected token noext,' ./configure: line 3850:AX_CXX_COMPILE_STDCXX_11(noext, mandatory)'

uname -a
Darwin 21.2.0 Darwin Kernel Version 21.2.0: Wed Oct 20 00:23:21 PDT 2021; root:xnu-8019.60.40.0.1~26/RELEASE_ARM64_T8101 arm64

opened by i3d 8
Slowdown in fullscreen macos

aaaand when a issue is closed, another is open

so i bring you once again a new bug

when i lauch neo and i put the cli in fullscreen (or in a big window), there is a slowdown that happen ~15s after the launch of the program, like it has really some difficulties to draw characters and it goes worse and worse

i notice that the program take 100% of the global cpu capacity, so it's clearly a performance issue, do you think it's a ncurses bottleneck or there is a small recursive function that goes wild somewhere and that's why the performances and worse and worse? (i don't let the program run for too long in case it may freeze my pc but clearly it make some part of my os laggy)

opened by Reaster0 5

[Bug] minor errors

I am in the process of packaging for debian. I came across tho following errors:

I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:194]
N: 
N:   This manual page uses the \' groff sequence. Usually, the intent is to
N:   generate an apostrophe, but that sequence actually renders as an acute
N:   accent.
N:   
N:   For an apostrophe or a single closing quote, use plain '. For single
N:   opening quote, i.e. a straight downward line ' like the one used in shell
N:   commands, use '\(aq'.
N:   
N:   In case this tag was emitted for the second half of a '\\' sequence, this
N:   is indeed no acute accent, but still wrong: A literal backslash should be
N:   written \e in the groff format, i.e. a '\\' sequence needs to be changed
N:   to '\e' which also won't trigger this tag.
N: 
N:   Please refer to Bug#554897, Bug#507673, and Bug#966803 for details.
N: 
N:   Visibility: info
N:   Show-Always: no
N:   Check: documentation/manual
N:   Renamed from: acute-accent-in-manpage
N: 
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:196]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:198]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:200]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:202]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:204]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:206]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:208]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:210]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:212]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:214]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:216]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:218]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:220]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:222]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:224]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:226]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:228]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:230]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:232]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:234]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:236]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:238]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:240]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:242]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:244]
N:
I: neo-cli: acute-accent-in-manual-page [usr/share/man/man6/neo.6.gz:246]
N:
I: neo-cli: typo-in-manual-page compatability compatibility [usr/share/man/man6/neo.6.gz:266]
N: 
N:   Lintian found a spelling error in a manual page. Lintian has a list of
N:   common misspellings that it looks for. It does not have a dictionary like
N:   a spelling checker does.
N:   
N:   If the string containing the spelling error is translated with the help of
N:   gettext (with the help of po4a, for example) or a similar tool, please fix
N:   the error in the translations as well as the English text to avoid making
N:   the translations fuzzy. With gettext, for example, this means you should
N:   also fix the spelling mistake in the corresponding msgids in the *.po
N:   files.
N: 
N:   Visibility: info
N:   Show-Always: no
N:   Check: documentation/manual
N:   Renamed from: spelling-error-in-manpage

This is nothing major, just thought I'd let you know.

Cheers

opened by werdahias 3

Compilation fail in macos monterey

hey all! when i try to compile the tarball on macos monterey (arm) i get this undeclared identifier error, i suppose that it's just some type of variable to change for the macos compatibility

cloud.cpp:852:9: error: use of undeclared identifier 'mvinnwstr'; did you mean 'mvinnstr'?
        mvinnwstr(msgChar.line, msgChar.col, wc, 1);
        ^~~~~~~~~
        mvinnstr
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/curses.h:621:28: note: 'mvinnstr' declared here
extern NCURSES_EXPORT(int) mvinnstr (int, int, char *, int);            /* generated */
                           ^
cloud.cpp:852:46: error: cannot initialize a parameter of type 'char *' with an lvalue of type 'wchar_t [2]'
        mvinnwstr(msgChar.line, msgChar.col, wc, 1);
                                             ^~
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/curses.h:621:54: note: passing argument to parameter here
extern NCURSES_EXPORT(int) mvinnstr (int, int, char *, int);            /* generated */
                                                     ^
cloud.cpp:864:9: error: use of undeclared identifier 'cchar_t'; did you mean 'wchar_t'?
        cchar_t wc = {};
        ^~~~~~~
        wchar_t
cloud.cpp:865:11: error: member reference base type 'wchar_t' is not a structure or union
        wc.attr = attr;
        ~~^~~~~
cloud.cpp:866:11: error: member reference base type 'wchar_t' is not a structure or union
        wc.chars[0] = msgChar.val;
        ~~^~~~~~
cloud.cpp:870:9: error: use of undeclared identifier 'mvadd_wch'; did you mean 'mvaddch'?
        mvadd_wch(msgChar.line, msgChar.col, &wc);
        ^~~~~~~~~
        mvaddch
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/curses.h:605:28: note: 'mvaddch' declared here
extern NCURSES_EXPORT(int) mvaddch (int, int, const chtype);            /* generated */
                           ^
cloud.cpp:870:46: error: cannot initialize a parameter of type 'chtype' (aka 'unsigned int') with an rvalue of type 'wchar_t *'
        mvadd_wch(msgChar.line, msgChar.col, &wc);
                                             ^~~
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/curses.h:605:59: note: passing argument to parameter here
extern NCURSES_EXPORT(int) mvaddch (int, int, const chtype);            /* generated */
                                                          ^

and when i try to compile from the github version i get with it this one :

droplet.cpp:144:9: error: use of undeclared identifier 'cchar_t'; did you mean 'wchar_t'?
        cchar_t wc = {};
        ^~~~~~~
        wchar_t
droplet.cpp:145:11: error: member reference base type 'wchar_t' is not a structure or union
        wc.attr = attr2;
        ~~^~~~~
droplet.cpp:146:11: error: member reference base type 'wchar_t' is not a structure or union
        wc.chars[0] = val;
        ~~^~~~~~
droplet.cpp:150:13: error: use of undeclared identifier 'mvadd_wch'; did you mean 'mvaddch'?
            mvadd_wch(line, _boundCol, &wc);
            ^~~~~~~~~
            mvaddch
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/curses.h:605:28: note: 'mvaddch' declared here
extern NCURSES_EXPORT(int) mvaddch (int, int, const chtype);            /* generated */
                           ^
droplet.cpp:150:40: error: cannot initialize a parameter of type 'chtype' (aka 'unsigned int') with an rvalue of type 'wchar_t *'
            mvadd_wch(line, _boundCol, &wc);
                                       ^~~
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/curses.h:605:59: note: passing argument to parameter here
extern NCURSES_EXPORT(int) mvaddch (int, int, const chtype);            /* generated */
                                                          ^
droplet.cpp:153:13: error: use of undeclared identifier 'mvadd_wch'; did you mean 'mvaddch'?
            mvadd_wch(line, _boundCol, &wc);
            ^~~~~~~~~
            mvaddch
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/curses.h:605:28: note: 'mvaddch' declared here
extern NCURSES_EXPORT(int) mvaddch (int, int, const chtype);            /* generated */
                           ^
droplet.cpp:153:40: error: cannot initialize a parameter of type 'chtype' (aka 'unsigned int') with an rvalue of type 'wchar_t *'
            mvadd_wch(line, _boundCol, &wc);
                                       ^~~
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/curses.h:605:59: note: passing argument to parameter here
extern NCURSES_EXPORT(int) mvaddch (int, int, const chtype);            /* generated */
                                                          ^

thanks for your work ;)

opened by Reaster0 3

Make fails on MacOS Big Sur

I have the latest version of command line tools available to my OS verison.

 ~/Scr/neo-0.6  make                                                                                                                     10.3s  Tue Dec 21 02:03:51 2021
Making all in doc
make[1]: Nothing to be done for `all'.
Making all in src
g++ -std=c++11 -DPACKAGE_NAME=\"neo\" -DPACKAGE_TARNAME=\"neo\" -DPACKAGE_VERSION=\"0.6\" -DPACKAGE_STRING=\"neo\ 0.6\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -DPACKAGE=\"neo\" -DVERSION=\"0.6\" -DHAVE_LIBNCURSESW=1 -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_GETOPT_H=1 -DHAVE_LOCALE_H=1 -DHAVE_NCURSES_H=1 -DHAVE_CXX11=1 -I.   -I/usr/local/opt/ncurses/include -DNCURSES_WIDECHAR -std=c++11 -g -O2 -MT cloud.o -MD -MP -MF .deps/cloud.Tpo -c -o cloud.o cloud.cpp
In file included from cloud.cpp:20:
./cloud.h:167:18: error: chosen constructor is explicit in copy-initialization
    mt19937 mt = {};
                 ^~
/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/random:2110:14: note: explicit constructor declared here
    explicit mersenne_twister_engine(result_type __sd = default_seed)
             ^
In file included from cloud.cpp:20:
./cloud.h:168:52: error: chosen constructor is explicit in copy-initialization
    uniform_int_distribution<int> _randColorPair = {};
                                                   ^~
/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/algorithm:3008:14: note: explicit constructor declared here
    explicit uniform_int_distribution(result_type __a = 0,
             ^
In file included from cloud.cpp:20:
./cloud.h:169:52: error: chosen constructor is explicit in copy-initialization
    uniform_real_distribution<float> _randChance = {};
                                                   ^~
/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/random:3730:14: note: explicit constructor declared here
    explicit uniform_real_distribution(result_type __a = 0, result_type __b = 1)
             ^
In file included from cloud.cpp:20:
./cloud.h:170:52: error: chosen constructor is explicit in copy-initialization
    uniform_int_distribution<uint16_t> _randLine = {};
                                                   ^~
/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/algorithm:3008:14: note: explicit constructor declared here
    explicit uniform_int_distribution(result_type __a = 0,
             ^
In file included from cloud.cpp:20:
./cloud.h:171:53: error: chosen constructor is explicit in copy-initialization
    uniform_int_distribution<uint16_t> _randCpIdx = {};
                                                    ^~
/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/algorithm:3008:14: note: explicit constructor declared here
    explicit uniform_int_distribution(result_type __a = 0,
             ^
In file included from cloud.cpp:20:
./cloud.h:172:51: error: chosen constructor is explicit in copy-initialization
    uniform_int_distribution<uint16_t> _randLen = {};
                                                  ^~
/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/algorithm:3008:14: note: explicit constructor declared here
    explicit uniform_int_distribution(result_type __a = 0,
             ^
In file included from cloud.cpp:20:
./cloud.h:173:51: error: chosen constructor is explicit in copy-initialization
    uniform_int_distribution<uint16_t> _randCol = {};
                                                  ^~
/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/algorithm:3008:14: note: explicit constructor declared here
    explicit uniform_int_distribution(result_type __a = 0,
             ^
In file included from cloud.cpp:20:
./cloud.h:174:56: error: chosen constructor is explicit in copy-initialization
    uniform_int_distribution<uint16_t> _randGlitchMs = {};
                                                       ^~
/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/algorithm:3008:14: note: explicit constructor declared here
    explicit uniform_int_distribution(result_type __a = 0,
             ^
In file included from cloud.cpp:20:
./cloud.h:175:56: error: chosen constructor is explicit in copy-initialization
    uniform_int_distribution<uint16_t> _randLingerMs = {};
                                                       ^~
/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/algorithm:3008:14: note: explicit constructor declared here
    explicit uniform_int_distribution(result_type __a = 0,
             ^
In file included from cloud.cpp:20:
./cloud.h:176:53: error: chosen constructor is explicit in copy-initialization
    uniform_int_distribution<size_t> _randCharIdx = {};
                                                    ^~
/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/algorithm:3008:14: note: explicit constructor declared here
    explicit uniform_int_distribution(result_type __a = 0,
             ^
In file included from cloud.cpp:20:
./cloud.h:177:51: error: chosen constructor is explicit in copy-initialization
    uniform_real_distribution<float> _randSpeed = {};
                                                  ^~
/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/random:3730:14: note: explicit constructor declared here
    explicit uniform_real_distribution(result_type __a = 0, result_type __b = 1)
             ^
11 errors generated.
make[1]: *** [cloud.o] Error 1
make: *** [all-recursive] Error 1
 2  ~/Scr/neo-0.6 

opened by gitscosh 2

Integration with xscreensaver

It will be SUPER cool to integrate neo with xscreensaver! Is there any possibility to achieve this? Its already has gl-matix - but neo feels way more "natural". Thanks!

opened by shellshock1953 2

Add instructions for macOS compilation (Intel and Apple Silicon)

Confirmed this compiles on Apple Silicon with brew ncurses

% uname -a
21.2.0 Darwin Kernel Version 21.2.0: Sun Nov 28 20:29:10 PST 2021; root:xnu-8019.61.5~1/RELEASE_ARM64_T8101 arm64
% brew info ncurses
ncurses: stable 6.3 (bottled) [keg-only]

opened by rosepomykala 2

glitch percentage option value is not a percentage
In the options description using neo -h

-G, --glitchpct=NUM set the percentage of screen chars that glitch

If I'm reading this correctly then if I use -G 1 this should be "1% of the screen glitches" but it's actually 100% of the screen. I have to use -G 0.01 to get 1% screen glitch.

Awesome project btw :)
opened by FoxxMD 2
Debian package

I have built a debian package of neo which is working so far. Maybe if the package gets approved it could be merged into debian unstable and from there to ubuntu. My relevant files: files.zip

opened by werdahias 1

Can't install

Making all in doc
make[1]: вход в каталог «/home/jack/neo/neo-0.6.1/doc»
make[1]: Цель «all» не требует выполнения команд.
make[1]: выход из каталога «/home/jack/neo/neo-0.6.1/doc»
Making all in src
make[1]: вход в каталог «/home/jack/neo/neo-0.6.1/src»
g++ -DPACKAGE_NAME=\"neo\" -DPACKAGE_TARNAME=\"neo\" -DPACKAGE_VERSION=\"0.6.1\" -DPACKAGE_STRING=\"neo\ 0.6.1\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -DPACKAGE=\"neo\" -DVERSION=\"0.6.1\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_GETOPT_H=1 -DHAVE_LOCALE_H=1 -DHAVE_NCURSES_H=1 -I.    -DNCURSES_WIDECHAR -std=c++11 -g -O2 -MT cloud.o -MD -MP -MF .deps/cloud.Tpo -c -o cloud.o cloud.cpp
cloud.cpp: In member function ‘void Cloud::CalcMessage()’:
cloud.cpp:853:9: error: ‘mvinnwstr’ was not declared in this scope
         mvinnwstr(msgChar.line, msgChar.col, wc, 1);
         ^~~~~~~~~
cloud.cpp:853:9: note: suggested alternative: ‘mvinnstr’
         mvinnwstr(msgChar.line, msgChar.col, wc, 1);
         ^~~~~~~~~
         mvinnstr
cloud.cpp: In member function ‘void Cloud::DrawMessage() const’:
cloud.cpp:871:9: error: ‘mvadd_wch’ was not declared in this scope
         mvadd_wch(msgChar.line, msgChar.col, &wc);
         ^~~~~~~~~
cloud.cpp:871:9: note: suggested alternative: ‘mvaddch’
         mvadd_wch(msgChar.line, msgChar.col, &wc);
         ^~~~~~~~~
         mvaddch
Makefile:373: recipe for target 'cloud.o' failed
make[1]: *** [cloud.o] Error 1
make[1]: выход из каталога «/home/jack/neo/neo-0.6.1/src»
Makefile:336: recipe for target 'all-recursive' failed
make: *** [all-recursive] Error 1

Any idea how to fix it?

opened by JackBekket 0

remove pseudorunes from Runic
Most fonts don't carry them, resulting in garbage.

You might also consider eliminating characters after U+16EA:

punctuation: ᛫᛬᛭

calendar symbols: ᛮᛯᛰ

Fixes #30
opened by kilobyte 0
Wrong runes used?

FYI: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1023575 Also I noticed that when using the --charset=runic option some symbols don't render correctly:

opened by werdahias 0
feature request: mode where the whole columns are moving

Hey.

Would be nice if there was a mode in which the whole columns are moving (possibly even with another modifier that makes them move in different speeds), like in here (though this is not so nicely made): https://www.youtube.com/watch?v=rzA8cZyisf8&t=312s

Thanks :-)

opened by philcerf 0
[Feature request] Matrix sounds

I don't know if this would be possible/feasible (or conflicted by copyright) but it would be really awesome to have an option to toggle the digital rain sound effect from The Matrix.

opened by werdahias 0

MSYS2 compilation

Hey there, just wanted to let you know that you can indeed run Neo on native Windows with MSYS2 by adding #define _GNU_SOURCE to src/neo.cpp. I got this error first:

neo.cpp: In function ‘void ParseArgs(int, char**, Cloud*, double*, bool*)’:
neo.cpp:515:17: error: ‘strcasecmp’ was not declared in this scope; did you mean ‘strncmp’?
  515 |             if (strcasecmp(optarg, "ascii") == 0) {
      |                 ^~~~~~~~~~
      |                 strncmp
neo.cpp:575:17: error: ‘strcasecmp’ was not declared in this scope; did you mean ‘strncmp’?
  575 |             if (strcasecmp(optarg, "green") == 0) {
      |                 ^~~~~~~~~~
      |                 strncmp
neo.cpp: In function ‘int main(int, char**)’:
neo.cpp:827:16: error: ‘strcasestr’ was not declared in this scope; did you mean ‘strstr’?
  827 |     if (loc && strcasestr(loc, "UTF") != nullptr)
      |                ^~~~~~~~~~
      |                strstr
make[1]: *** [Makefile:371: neo.o] Error 1

But after googling a bit, I came across this: https://github.com/jarun/nnn/issues/784, and I just tried putting #define _GNU_SOURCE into the source file. Maybe including something like https://github.com/jarun/nnn/commit/d38f4b13d422963b06b4fb92df771aab154539e0 could fix this properly, but I don't know exactly if/what that would break. You can add to the readme that it is possible that way :)

opened by lxhom 0

Releases(v0.6.1)

v0.6.1(Feb 22, 2022)
v0.6.1 mainly fixes build and runtime issues in v0.6, the first public release.

If you don't know what to do with the .tar.gz file, check out the "Building and Installing" section of README.md.

Release Notes:

Various build fixes for Gentoo, macOS, and FreeBSD

Fix a bug where droplets were not drawn correctly

Make --glitchpct, --rippct, and --shortpct take values between 0 and 100 inclusive (used to be 0 and 1)

Add "braille" and "runic" charsets

Source code(tar.gz)
Source code(zip)
neo-0.6.1.tar.gz(130.97 KB)
v0.6(Dec 14, 2021)
First tarball release of neo on GitHub!

If you don't know what to do with the .tar.gz file, check out the "Building and Installing" section of README.md.

Release Notes:

Add 16 color support

Add the --colormode option

Remove the --ascii, --16, --256, --mono, and -t/--truecolor options

Improve the color file parsing and add versioning

Improve Unicode detection

Add the following parameters for --charset: ascii, extended, dec, and decimal

Source code(tar.gz)
Source code(zip)
neo-0.6.tar.gz(137.75 KB)