If the program (alt and original) runs to completion the program will
use (via redefined exit(3)):
return system("reset");
so that the terminal becomes sane. One could use tput cvvis as well but
this was not done as it's longer.
As long as the program (alt code and otherwise) runs to completion the
program will return instead of 0:
system("reset");
so that the terminal becomes sane again (otherwise cursor is invisible).
One could also use 'tput cvvis' but this is longer and I wanted to make
the column as close to the original ending as possible.
The alt version is based on the author's suggestion but like I've done
with the others (sometimes based on author's suggestions, sometimes not)
where usleep() is used I made it configurable at compile time.
Added demo.sh which cycles through all the text files provided, noting
prior to running the command what is about to be run, to show them all.
Note that if someone were to put in an invalid text file in the
directory there might be a problem. Script removes (in message) the
'.txt$' and capitalises the word. In some cases it changes the text to
be two words. Script passes shellcheck. This script allows one to use
the alt version as well; the try section of the README.md shows this
happening.
Format fix and added links (quite a few - I have very fond memories of
the games from the 1980s!) to the games referenced.
Updated .gitignore.
Cody Boone Ferguson