gl-117 - an OpenGL action flight simulator
gl-117 [-dlevel -h -v]
gl-117 is an OpenGL and SDL based action flight simulator written in ISO C++. Enter the Eagle Squadron and succeed in several challanging missions leading though different landscapes. Five predefined levels of video quality and an amount of viewing ranges let you perfectly adjust the game to the performance of your system. The game provides joystick and mouse support, sound effects, and music.
-dlevel Set the debug level to level in [0..5]. '0' means quiet and will avoid any output, '1' will log fatal errors causing the program to crash on stderr, '2' will also print exceptions on stderr, '3' will add warnings on stdout, '4' prints additional information (predefined) on stdout, and '5' gives developer specific messages on stdout. -h Print a short summary on stdout and then quit immediately. -v Display the version number of gl-117 and then quit immediately.
gl-117 uses a predefined working directory ".gl-117" in the user's home directory to load and store all savegame files and read the plain text configuration files "conf" and "conf.interface". If there are no config files available, gl-117 will create them using standard settings. The contents of the files are quite self-explanatory.
Please look at the gl-117 user manual (gl-117.pdf) for installation instructions and further gameplay related descriptions.
gl-117 is distributed under the terms of the GPL.
Thomas A. Drexl ([email protected]) 27 February 2003 GL-117(6)
Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.
Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.
Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.
Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.
The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.
Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.
Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.
Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.