========================================================================== xhangglider Version 0.9x ========================================================================== * Introduction xhangglider is a demo program which runs on the X Window System. One or more colorful hanggliders composed of polygons fly around in the root window. It is similar to xfishtank. * What is necessary xhangglider requires 1) an OS like Unix, *BSD, or Linux 2) X Window System *1 *2 3) C compiler *1 suggest 8 bpp or more. *2 Probably X11R5 or newer (perhaps) and tested on * Linux 2.0.36 X11R6.3 * Solaris 2.5.1 (X11R5, X11R6.4) * Install See the file INSTALL. * Options xhangglider has the following command line options. -x, -y int Origin coordinate of the drawing area. Invalid without '-noflicker' option. -width int Width of the drawing area. Invalid without '-noflicker' option. -height int Height of the drawing area. Invalid without '-noflicker' option. -pilot num Number of the gliders. Valid range is from 1 to 8. Default is 1. -frequency sec Frequency of redrawing gliders. The unit is the second. Default is 0.1 sec. -noflicker Gliders never flicker. You can draw gliders in the limited area of the screen with -x,-y,-width,& -height. This option may slow down your machine. -useclip Use clipmask when drawing. Conflicts with '-noflicker', so use one of these if you want. This option may slow down your machine. -trans transient. Gliders fly on root window as it was. Recommended! -vario Show variometer. -deffile file Specify the definition file. By default, The program first looks for ~/.xhangglider, then goes into /usr/local/share/xhangglider and looks for glider.def. If it can't find the definition file, it aborts. -color name The name of the color you want to paint on root window. Invalid with -trans. Default is DeepSkyBlue. -pylonrace Do pylonrace. -help Show usage. * What's the definition file ? At the version 0.92a, The color of each component of each glider can be changed. There must be 'glider.def' in /usr/local/share/xhangglider if 'make install.dat' exited normally. The file is refered to by all users, so it is better you do not modify it. Type % cp /usr/local/share/xhangglider/glider.def ~/.xhangglider to create your own definition file in your home directory, and modify yours to change colors. By the way, you can specify various options in the definition file. See glider.def for more detail. * Enjoy Let's run xhangglider. Just type % /usr/local/bin/xhangglider -vario in something like xterm. You will see a hangglider flying in the blue sky. If you want to stop, type Ctrl-C. * Copyright Copyright (C) 1999 Yasuhiro Take Freely redestributable under the term of the GNU General Public License Notice that this program is presented without any warranty. See the file COPYING. * Explanation of the vario window. <snip> * Talk to myself. Oh, it's too heavy. It slows down my machine, as well as my work. The Algorithm of centering is halfway. Gliders are all double surface. I hope to fly gliders like XC or Laminar. It seems collisions between gliders often happen. Paragliders can be flown, too. You shouldn't run xhangglider with application like Mozilla for your health. * Finally Bug reports, how you feel, blames(?), advice, wishes, fan letters, especially English mistakes, anything welcome. Please e-mail me. ========================================================================== Wed, May 5 1999 Yasuriro Take E-mail: redstar@mx5.nisiq.net http://plaza.harmonix.ne.jp/~redstar
