Landon Curt Noll
96e0f2b966
A number of rules have been moved from entry `Makefile`s into the `1337.mk` include file to make it easier for these common rules to be updated or modified globally (by modifying the `1337.mk` include file). The entry level `Makefile`s are now similar in form to the /Makefile.example](https://github.com/ioccc-src/mkiocccentry/blob/master/Makefile.example) file from the other repo. The following make rules were moved into the `1337.mk` include file: - `make indent.c` - `make install` - `make diff_orig_prog` - `make diff_prog_orig` - `make diff_alt_prog` - `make diff_prog_alt` This simplifies the entry level `Makefile`s so that they mostly reflect the specifics of the particular entry. Mentioned in FAQ 4.2, that the make diff rules are in the `1337.mk` include file. Fixed invalid TAB character in `faq.md`. Removed `make clean` directives that removed `indent.c`. This file is now removed via `make indent_clean`, a clean rule that also removes `indent.c`. Removed `make clobber` directives that removed sandwich, This file is now removed via `make indent_clobber`, a clean rule that also removes `sandwich`. Added `make indent_clean` and `make indent_clobber` rules into the top level `Makefile` and the year level `YYYY/Makefile`. Performed `make quick_www` to accomplish the above and to test under macOS.
To build:
make chaos
NOTE: Some systems do not implement halfdelay() in their libcurses.
You might try compiling with -lncurses if you have that library.
Or you can build this entry without the halfdelay() call by:
make chaos_nohalf
Bugs and (Mis)features:
The current status of this entry is:
STATUS: INABIAF - please DO NOT fix
For more detailed information see 1998/chaos in bugs.html.
To use:
./chaos
Try:
./try.sh
This script will run the program on each data file. To quit the program hit q.
If not all files have been used it will go to the next one; otherwise the script
will be finished. To end the script early send intr/ctrl-c.
The script will give you instructions on how to use the program and things to try each time it is run, as a helpful reminder.
Judge's Comments:
This is the author's first IOCCC entry. We thought the entry was a nice example of a compact collection of obfuscations.
Can you figure out why, in some cases, it wants to read itself?
Author's remarks:
Usage
The executable takes a single argument for the data file to use. If no argument is given, it will find a data file by itself, don't worry about it...
Summary
This is a simple ncurses 3D object viewer. The keys y, u, i,
h, j, and k rotate. a and z zoom in and out. q quits.
Given about 3 seconds of no input, it will start rotating until
interrupted by user input.
Features (aka Bugs):
Memory malloc(3)ed is never freed. This shouldn't be a big deal,
since only one block is ever allocated, and the OS should recover it.
My local flavor of lint doesn't seem to like the fact that I never
return from main(). Feh, what does it know? Otherwise, ignoring
lint's over protectiveness ("Of course I'm not using all of the
functions defined in curses.h!"), it's lint clean.
If the compiler happens to generate the byte sequence "AlWuzEre" in the executable by chance, the program may be unable to locate the embedded string. As a result, running the program without an external data file may act in undefined ways.
If the compiler doesn't store char * P's data in a nice contiguous
stream, it would be bad. As above, it would break running the
program without an external data file.
If the incoming data is corrupt, the results are undefined. (Although dumping core is a popular result.)
When a point passes behind the camera, it is still plotted. The object will "bounce" off the camera, but the result (some points in front, some reflected from the rear) looks really odd. And it sometimes hangs. So just don't fly through objects. You'll be happier.