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    Types: TextFile
    Names: »README«

└─⟦b20c6495f⟧ Bits:30007238 EUUGD18: Wien-båndet, efterår 1987
    └─⟦this⟧ »EUUGD18/X/Xlife/README« 

TextFile

This is an interactive demo of John Conway's game of Life. This
implementation was inspired by the one on a DEC Firefly. (We have only
one Firefly, but lots of X workstations:-)

I wrote it as a skeleton framework/demo on which people could base
applications that they wanted to port quickly to X, which were
basically single window things that took a few key/mouse commands,
and did mostly continuous output. Usually, these applications had
their own main loop, or suchlike, and couldn't call XtMainLoop. To
do all the WM/Normal/IconHints, options, defaults stuff right
without the Toolkit is cumbersome, but trying to do basic graphics
requires Xlib calls. And everyone whom I gave the Xt documents came
back shaking their heads saying "No thanks - we'll use the Tek
window".

Anyway, this attempts to answer the question
	How do I put up a window and draw stuff to it?
but uses the Toolkit.

xlife.c is interesting as a simple Tookit demo which does CONTINUOUS
graphic output, and uses the SIGIO signal to process events. (expose,
mouse). Much code stolen from contrib/gnuplot.

xlife2.c uses ordinary event handling, processing events only between 
iterations. Simpler, but less responsive.

Makes a neat game. Start it off, and try to kill off all life by
adding cells while the game is running - you're not allowed to stop it
in between except to answer the phone or suchlike :-).

To compile, edit the Imakefile to define HAVE_RANDOM if you have it, and to
uncomment the lines for xlife2 if you want that as well, make Makefile, make
depend, and make. Try it with 'xlife -pat xlife.pat'. If you want, then
'make install'.

Have fun. Send additions to the xlife.pat file, enhancements, fixes,
comments, criticism etc. to 

                                        Mark Moraes
                                        Computer Systems Research Institute,
                                        University of Toronto,
                                        Toronto, Canada M5S 1A4
                                        
                                        {your favourite backbone}!utcsri!moraes
                                        moraes@utcsri.UUCP (new style)
                                        moraes@csri.toronto.edu
                                        moraes@csri.utoronto.ca
                                        moraes@csri.utoronto (bitnet)