Free realistic feeling software for linux

Bowzilla is a mini Game for 2 players. Leaned against the old QBasic Gorilla, you must fire at your opponent in real-time.

Particularly the realistic blood is to be considered with the lightning strike. You have to find a whole in the target range. However, you should not expect to much from it.

InteLib is a library of C++ classes which lets you do Lisp programming within your C++ program even without any additional preprocessing, without all those calling conventions etc.
You can write a C++ code (that is, a code which is accepted by your C++ compiler) thinking in a "Lisp mode" and the code you write will look much like Lisp code altough it will be pure C++.
To give you the essential feeling, the following example is provided.
(defun isomorphic (tree1 tree2)
(cond ((atom tree1) (atom tree2))
((atom tree2) NIL)
(t (and (isomorphic (car tree1)
(car tree2))
(isomorphic (cdr tree1)
(cdr tree2))
))))
Just a Lisp function, isnt it? Now look at the following code:
(L|DEFUN, ISOMORPHIC, (L|TREE1, TREE2),
(L|COND,
(L|(L|ATOM, TREE1), (L|ATOM, TREE2)),
(L|(L|ATOM, TREE2), NIL),
(L|T, (L|AND,
(L|ISOMORPHIC, (L|CAR, TREE1),
(L|CAR, TREE2)),
(L|ISOMORPHIC, (L|CDR, TREE1),
(L|CDR, TREE2))
))))
Obviously the code is just the same, the syntax changed a bit, but its still the same. Well, do I surprise you if I say it is C++ code? If you dont believe, look at the following:
// File isomorph.cpp
#include "lisp/lisp.hpp"
#include "lisp/lsymbol.hpp"
#include "lfun_std.hpp"
LSymbol ISOMORPHIC("ISOMORPHIC");
static LFunctionalSymbol< LFunctionDefun > DEFUN("DEFUN");
static LFunctionalSymbol< LFunctionCond > COND("COND");
static LFunctionalSymbol< LFunctionAtom > ATOM("ATOM");
static LFunctionalSymbol< LFunctionAnd > AND("AND");
static LFunctionalSymbol< LFunctionCar > CAR("CAR");
static LFunctionalSymbol< LFunctionCdr > CDR("CDR");
LListConstructor L;
void LispInit_isomorphic() {
static LSymbol TREE1("TREE1");
static LSymbol TREE2("TREE2");
////////////////////////////////////////////////
//
(L|DEFUN, ISOMORPHIC, (L|TREE1, TREE2),
(L|COND,
(L|(L|ATOM, TREE1), (L|ATOM, TREE2)),
(L|(L|ATOM, TREE2), NIL),
(L|T, (L|AND,
(L|ISOMORPHIC, (L|CAR, TREE1),
(L|CAR, TREE2)),
(L|ISOMORPHIC, (L|CDR, TREE1),
(L|CDR, TREE2))
)))).Evaluate();
//
////////////////////////////////////////////////
}
// end of file
Well, this code is a complete C++ module and it does compile pretty well. No joke, its real.
By the way, dont try to find any use I made out of the macroprocessor. No macros have ever been used by InteLib (except those for conditional compile directives). Instead, just recall that comma is an operator in C++ and can be overloaded for user-invented data types.
Enhancements:
- Some new package-related features are implemented, and the GNU readline autodetection has been fixed.

mCube Music Manager project is a digital music manager. The target is to let user manage and choose music to listen with the comfort and feeling of browsing physical compact disc and with the power of computer aided search, sort and categorization.
Main features:
- Folders synchronization: add a folder to mCube Library and you never need to worry about it anymore.
- Tagging System allows to build a categorization that evolves with the library and with user needs. Tag Cosmos allow you to navigate through your tags easily
- Many different Views for displaying Artists, Albums, Tracks or your Compilations. You can build your own page with the view you like in the way you like.
- Quick search box to filter all library a la iTunes/Firefox/Thunderbird
- Edit Album Information and automatically update file tag
- Easy filter for different album types (Live, Sountrack...) and support for multiple CDs albums
- Export selected songs or albums to an external folder: youll never need to use File Managers anymore!
- Play songs or albums with default system player.
- mCube is open source and, of course, free!

Free Tennis is a tennis simulation developed by a former tennis player. Its main feature is realism.
For gameplay, this means you have total control over the shot parabola. For graphics, it means players have realistic gestures. For AI, it means real tactics.
Free Tennis is a tenis simulator game.
Main features:
- Real tactics are useful in the game (e.g. it is best to take the net with a slow, low shot (backspin); it is best to play diagonal in order not to give angles, especially when you are decentered; you should get back to center after the shot, and not be caught in no-mans-land when the opponent hits; etc.);
- The A.I. is very advanced and reflects those tactics;
- You have total control over the parabola described by the shot;
- The graphic gestures are realistic and elegant;
- Different players have different skills;
- The game is developed by a former tennis player;
- Free Tennis is Free Software (which means more than simply "open-source"). It is released under the GPL license. Should you need another license, please ask the author.

Racer is a free car simulation project, using real car physics to get a realistic feeling. Cars, tracks, scenes and such can be created with relative simplicity in mind (compared to other driving simulations).
The 3D and other file formats are, or should be, documented. Editors and support programs are also available to get a very flexible and expandable simulator. It uses OpenGL for rendering.
It attempts to do well at the physics section, trying to create life-like cars to emphasize car control and doesnt cut back on realism in the interest of fun. If youve played Grand Prix Legends from Papyrus, youll know what Im talking about.
Racer major features:
- Its totally free! (for non-commercial use)
- Available for multiple platforms; Windows 2000/XP (95/98/ME may work but have some trouble with fonts), Linux and Mac OS X.
- 6 DOF models used (the car can move around freely)
- Uses motion formulae from actual engineering documents from SAE for example.
- Total flexibility; almost everything is customizable through ASCII files.
- Commercial-quality rendering engine (with smoke, skidmarks, sparks, sun, flares, vertex-color lit tracks).
- Support for Matrox Surround Gaming. See the corresponding page on Matrox site.
- Lots of addon cars and tracks available on the web.
- Easy integration of your own cars and tracks that you create in ZModeler, 3D Studio Max(tm), Maya etc.
- At least 15 degrees of freedom for a regular car (6 DOF for the car body, 1 for each wheels vertical motion and 1 for each wheel spinning, and 1 for the engine, several more for the driveline). Depending actually on how many wheels you put on the car.
- Real-time internal clock; no physical dependency on framerate. Controller updates are also done independently of the framerate.
- Not limited to 4 wheels; anything from 2 to 8 wheel vehicles are currently supported (but mostly untested, and some problems with hardcoded differentials for example may exist (v0.5.0)).
- Not much constraints on the track data; surface info is taken from polygon data (VRML tracks), and splines are used to smooth out the track surface (polygons are too harsh for driving on just like that).
- Tools to modify the cars & tracks are freely available on this site (though external utilities are recommended for best results).
- Some used algorithms are explained on this site. Also, references are available. If you are programming a carsim, you might find something useful here.
- Save game present!
Main features:
PHYSICS FEATURES
- Full 6 degree of freedom motion of the car chassis.
- Independent suspension for all wheels.
- Suspension features: springs, dampers, anti-rollbar, rollcenter, anti-pitch.
- Wheel features: camber, wheel hop (the wheels have mass), toe.
- Tires: Pacejka tire model, relaxation length.
GRAPHICS FEATURES
- View frustum culling for increased framerate.
- Shader system for Quake-style rendering.
- Fog definable per track.
- Environment mapping for shiny materials.
- Live track environment mapping.

Magic Cube 4D project is a four-dimensional Rubiks Cube.

MagicCube4D is a fully functional four-dimensional analog of Rubiks cube. The image above shows the puzzle in its solved state. Click on it for a simple resizable applet version that you can interact with to get a feeling for how it works. Download the full-featured application below and try to solve it. Please read the FAQ for a more complete description of the puzzle. If the Java applet or application fail to start you may need to install a Java virtual machine. Click here for a current one.

Don Hatch and Melinda Green have developed it on and off over several years. Jay Berkenbilt has recently joined us to help with Linux support and source control. Don and Jay were the first to have solved the puzzle making extensive use of the move macro facility in the UNIX version. Roice Nelson became the first person to solve the puzzle without using macros. For his solution, he extended Philip Marshalls 3D "Ultimate Solution to Rubiks Cube".

You can learn Roices solution if you dont feel like trying to solve it yourself first. Using his techniques, Roice and others have continued to find ever shorter solutions so that the record currently recovered by Roice required only 334 twists! You can find documentation of these and other milestones on the MagicCube4D Hall Of Fame page. If you solve it with or without reading the solution, send us your log file and well list you in the MagicCube4D hall of fame too!

The mathematically inclined may be interested to know that the number of possible states for the 4D cube is exactly

(24!x32!)/2 x 16!/2 x 2^23 x (3!)^31 x 3 x(4!/2)^15 x 4

which can also be expressed as

32! 24! 16! 2^22 6^32 12^15