Free blue planet software for linux

Tk::Columns is a multicolumn list widget with sortable & sizeable columns.

SYNOPSIS

use Tk::Columns;

$Columns = $parent->B
(
-columnlabels => [qw (column1 column2)]
-listbackground => white,
-listforeground => black,
-buttonforeground => black,
-buttonbackground => blue,
);

$ColumnHeader = $Columns->B
(
-listfont => -adobe-new century schoolbook-medium-r-normal--14-*-*-*-*-*-*-*,
-buttoncolor => beige,
-text => column3,
-width => 15,
-trimcount => 2,
-listbackground => white,
-listforeground => black,
-buttonforeground => black,
-buttonbackground => blue,
-sort => true,
-sortcommand => $a cmp $b,
-image => $icon_image,
-buttoncommand => sub {...},
-selectcommand => sub {...}
);

$Columns->insert (end, [List, Row, Contents]);
$Columns->insert (end, {column1 => List, column2 => Row, column3 => Contents});
$Columns->insert (end, List, Row, Contents);
$Columns->delete (0, end);

...

Tk::MainLoop;

ppminfo is a project that shows details of an ppm-file on the console. seems this is the only utility missing from netpbm.

Example:

folkert@belle:~/Personal/src/ppminfo$ jpegtopnm ~/Pictures/friends.jpg | ppminfo -vv
Resolution: 4288x2848
Maximum value: 255
Format: 20534
min avg max stddev
red: 2 126 255 52
green: 0 95 255 45
blue: 0 81 255 46

IDND is a Firefox extension that puts a little flag in the status bar that tells you whether you are visiting a Traditional Domain Name (green TDN) or an International Domain Name (UN-blue IDN).

IDNs can be used for phishing or spoofing, so suspicious IDNs cause an optional alert box to appear further warning you to take care. This is in no way sufficient protection against all kinds of spoofing, but does add to your browsers defences.

In the status bar a green or blue flag shows whether the current page has a traditional (A-Z 0-9 -) or an international domain name. In this way you have more protection against homograph attacks.

The Blue Programming Language project is a unique bytecode-compiled language that implements the most effective capabilities of many popular programming languages in a clear and concise syntax. Plugin modules are easy to develop and can add functions, types, and even programming paradigms to the language without interfering with the syntax.
Blue is still early in its early development stage so very little optimization has been done, and its functionality grows every day. The following introduction is by no means a comprehensive description of blues capabilities.
Main features:
- Free (GPLd)
- A cross-platform programming language
- A dynamic language with a simple and consistant syntax
- Bytecode compiled
- Garbage collected
- Incredibly easy to expand with native functionality
Installation:
- Download the source
- Extract the archive. "tar -xvzf blue1.0.tar.gz"
- cd into the extracted directory. "cd blue"
- Execute make. "make"
- su to root. "su root"
- Execute make install 1. "make install"
- Execute make test. "make test"
Replace "make install" command with "make install INSTALL_DIR="/different/dir" to install to an alternate location.
Enhancements:
- This update contains a compiler bugfix, many more tests, and a function call optimization.

Planets is a simple interactive program for playing with simulations of planetary systems, released under the GPL. The project runs on Linux and Windows, and could doubtless be ported to your favorite flavor of Unix.
Planets was originally designed for kids, in particular, for my then 4-year old nephew who is fascinated by astronomy. The user interface is aimed at being simple enough that a fairly young kid can get some joy out of it. But the adults who have used it have found it to be pretty fun as well.
The code is not bug-free, and Planets is missing some significant features. But its pretty stable and is a fun toy to play with. If you do download it, please drop me an email and tell me about your experience with it.
Main features:
- Saving and loading of universes
- Infinite undo (erase last action) and goback (return to point in time just after last action). This allows for undoing mistakes and replaying interesting configurations.
- Traces of planet trajectories
- Two ways of dealing with planet collisions:
- merges, where the colliding planets are merged into one planet, and
- bounces, where the colliding planets are bounced off each other elastically. This itself comes in two varieties:
- force bouncing, where the force between planets is made repulsive at close quarters.
- true bouncing, where simple pool-table physics calculations are made to determine when planets collide, and compute the appropriate bounce from said collision.
- kidmode, a mode where the focus is (mostly) locked on the application, and interesting changes are initiated by merely banging on the keyboard. This mode is aimed at 1-5 year olds.
- Center-of-mass following: it is possible to follow the center of mass of a subset of the planets. Thus, if you have a sun-moon-planet system, you can have the view automatically track the moon-planet pair.
- Can display kinetic, potential and total energy of the system.
- Both the gravitational constant and the gravitational exponent can be changed.
- There is a simple control panel that makes it possible to see and change the simulation options.
- Zooming, panning, and centering on the center of mass.

Scum of the Universe is a space trading game that combines two genres: arcade and strategy. On one side, its a classic vertical-scrolling space shooter game. On the other side, it is an adventure and strategy. You should choose whether youll be an independent space trader, firearms smuggler, fierce freedom-fighter or something in between.

Following the main storyline, you go through the galaxy from one planet to another. Space travel requires fuel, so you need to keep earning money to buy it. You can also buy various upgrades for your spaceship and weapons that affect the arcade part of the game. The storyline itself is not linear. There are also some points where youll need to make decisions that will determine your destiny.

For thousands of years, people of planet Xen have colonized the planets in their galaxy. As time went by, many colonies grew unhappy about their status, as everything was controlled by Xen. Some of them organized military units and declared independence. You can see the status of each planet by "Rebel Sentiment" indicator. Planets with RS higher than 50% are ruled by the Rebel government, and Rebel laws apply.

Trading firearms is legal on planets ruled by Rebels, as they need as much firepower as they can get. On the other hand, Empire forbid all the trading with firearms and other ground weaponry as they wish to maintain their military advantage. One of the ways to make a lot of money is to buy cheap guns at Empire planets and sell them for a lot of money on Rebel planets where demand is extremely high. But be careful as youll need to fight Empire fleet once they find out youre a smuggler.

Beside the raging war between Xen Empire and the rebels there is increased activity of alien species, who destroy human ships. The stronger alien activity, the more waves of alien ships youll need to defeat in each planets outer orbit. Some of the aliens you destroy may drop artifacts (big blue ones) which you can sell at any space station for 20credits a piece.