Posts Tagged ‘active development’

KRaptor a Raptor free software (open source) arcade game clone for GNU / Linux

Monday, January 30th, 2012

Kraptor is another Raptor Shadow of Death free software, open source clone arcade game for GNU/Linux, DOS and Windows (98, XP etc.).

KRaptor main menu game screenshot Linux Debian Squeeze

The game is not under active development anymore since 2004. Kraptor features a powerful engine for creating quickly 2D shooter games, so the game should be a good learning curve for people interested into creation of arcade game shooter games.

The game just like Rafkill is built upon DUMB sound engine.
The game intro is quite entertaining 😉 The intro plays one by one the text:

Near Future:
Money and Power. Slaves of the New Millenium!

KRaptor Bill gates like looking oppressor

After years of oppression, the slaved people of the world have raised against their masters. You, has a mercenary pilot, has been
contacted by the popular rebellion to fight against the forces of oppression.

In the morning, you jump into your cockpit and start up the engines. It's time to get airborne and start the attack. Get ready to
scramble the scum hired by the masters. Murder for freedom is the only way, you're on a mission, don't defraud us...

Like Rafkill, Kraptor is one man masterpiece created by a free software Argentinean geek known under the Kronoman artistic pseudonim. The game is really incredible for a one man work … a true masterpiece.
The game is licensed under MIT License.

Even though Kraptor is older game than Rafkill, the design is more resembling the original Raptor game. The game music is high quality stereo. Besides that music and fx sound effects are quite awesome. After each level you have a Raptor like weapons "blackmarket", where you can buy new weapons, recharge ship energy, upgrade ship etc.
The blackmarket implementation part of the game is probably the worst moment in the game along with the game menus (in my view).
Talking about graphics Kraptor supports really high number of resolutions ranging from 320×240 to 1280×1024! 640×480 is the standard resolution in which the game is running.

Kraptor raptor like Linux game plasma gun debian screenshot

Something I really like in the game is the number of multiple weapons your ship uses during play. Even if played in Easy mode it is taught.

There are game Saves after each level, so thanksfully you don't have to start again from zero once death.
At the end of each level there is a huge bad BOSS you have to destroy ;).
Kraptor the boss Debian GNU / linux

Installing Kraptor on Debian / Ubuntu and deb derivatives is with:

debian:~# apt-get install kraptor

On most rpm based Linux distributions, you can install the game by converting the deb package to rpm with alien or by building from source from Kraptor's sourceforge page

Its interesting the game name e.g. Kraptor is also a death / grind metal band name, (Maybe Kronoman is metalhead big fan of Kraptor and that's how he came up with the playful name. For all the old school game addicts there is the joystick support. I've tested it with my Genius analogous joystick and it works fine.

The game is lacking .desktop gnome definition and after once installed it only appears through Debian (section) GNOME menus and not in Applications -> Games :

Applications -> Debian -> Games -&act; Action -&t; Kraptor

Just like Rafkill on Debian the game exacutable binary is located in /usr/games/kraptor . Also like with the Rafkill case when launched the game has troubles with choppy sound and music caused by the stupid buggy! pulseaudio

Analogously like with Rafkill's case, the work around to the problematic music en sound is to use a little bash shell script like:

pulseaudio -k;
pulseaudio --start;

You can dowload Kraptor fix sound issues wrapper here

To install it on your Debian / Ubuntu and hence make the game sound play good issue with root:

debian:~# cd /usr/bin
debian:/usr/bin# wget
debian:/usr/bin:# chmod +x
debian:/usr/bin:# mv kraptor


RafKill Raptor Free Software (Open Source) clone for GNU/Linux

Saturday, January 28th, 2012

I've earlier blogged on playing Apogee's Raptor Shadows of Death arcade on GNU / Linux with dosbox

All the old school raptor addicts will be interested to hear Kazzmir (Jon Rafkind) a free software devotee developer has created a small game resembling many aspects of the original Raptor arcade game.
The game is called Rafkill and is aimed to be a sort of Raptor like fork/clone.
Originally the game was also named Raptor like the DOS game, however in year 2006 it was changed to current Rafkill in order to avoid legal issues with Apogee's Raptor.

The game is not anymore in active development, the latest Rafkill release is from January 2007, anyhow even for the 2012 it is pretty entertaining. The sound and music are on a good level for a Linux / BSD shoot'em'up free software game . The graphics are not of a top quality and are too childish, but this is normal, since the game is just one man masterpiece.

Rafkill Level 1 Debian GNU/Linux

Rafkill is developed in C/C++ programming language, the game music engine it uses is called DUMB (Dynamic Universal Bibliotheque). By the way DUMB library is used for music engine in many Linux arcade games. DUMB allows the Linux game developer to develop his game and play a music files within different game levels in "tracked" formats like mod, s3m, xm etc.

The game is available in compiled form for almost all existent GNU/Linux distributions, as well as one can easily port it as it is open source.

To install Rafkill on Debian, Ubuntu, Xubuntu and Linux Mint en other Debian based distros

root@debian:~# apt-get install rafkill

Installing on Fedora and other rpm based is with yum

debian:~# apt-get install rafkill

Once rafkill is installed, in order to start it on Debian the only way is using the rafkill (/usr/bin/rafkill) command. It appears the deb package maintainer did not wrote a gnome launcher file like for example /usr/share/applications/rafkill.desktop
Just to explain for all the GNOME noobs, the .desktop files are a description file GNOME reads in order to understand where exactly to place certain application in the (Gnome Applications, Places, System …) menu panel.

Even though it miss the .desktop, it is launchable via Applications menu under the Debian section e.g. to open it from the GNOME menus you will have to navigate to:

Applications -> Debian -> Games -> Action -> Rafkill

This "shortcut" to launch the game is quite long and hard to remember thus it is handy to directly launch it via xterm:

hipo@debian:~$ rafkill

Rafkill raptor like native Linux game main menu screenshot Debian GNU / Linux Squeeze

or by pressing ALT+F2 and typing rafkill :

Rafkill Linux game gnome launcher screenshot

Rafkill Debian Linux Level 5 power weaponscreenshot

Starting the game I got some really ugly choppy music / sound issues.
My guess was the fizzling sounds were caused by some bug with the sound portions streamed through pulseaudio sound system.
To test if my presume is correct, stopped pulseaudio and launched rafkill once again:

hipo@debian:~$ pulseaudio -k
hipo@debian:~$ rafkill

This way the game was counting on ALSA to process sound en the sound was playing perfectly fine.

I solved this problem through small wrapper shell script. The script did kill pulseaudio before launching rafkill and that way solve gchoppy sound issues, once the game execution is over the script starts pulseaudio again in order to prevent all other applications working with pulseaudio.

Finally, I've placed the executable script in /usr/bin/rafkill :

Here is the script:

pulseaudio --kill
pulseaudio --start

You can download here
Or write in root terminal:

debian:~# cd /usr/bin
debian:/usr/bin:# wget
debian:/usr/bin:# mv rafkill
debian:/usr/bin:# chmod +x rafkill

Interesting in Ubuntu Linux, rafkill music is okay and I suppose the bug is also solved in newer Linux distributions based on Ubuntu. Probably the Debian Squeeze pulseaudio (0.9.21-4) package version has a bug or smth..

After the change the game music will be playing fine and the game experience is cooler. The game is hard to play. Its really nice the game has game Saves, so once you die you don't have to start from level 1.

Rafkill Load menu screenshot

  I've seen rafkill rolling around on ftps under the ubuntu packages pool, which means rafkill could probably be played easily on FreeBSD and other BSDs.

Enjoy the cool game 😉

Develop your children intellect with Gcompris high quality educational software on GNU / Linux, Windows and Mac OS X

Monday, October 3rd, 2011

Gcompris Main entry Screen

Gcompris is a great piece of software to educate children in the age interval of 2 to 10 years old.
Gcompris is a tool of educative and funny interactive computer applications many of which has a form of games.

Gcompris strategy games

Gcompris is teaching the children on the following fields of knowledge:

  • understand the computer – keyboard, mouse etc.
  • Algebra – Summing up numbers, enumarations, table memory, mirror image etc.
  • Science – The Canal lock, the water cycle, how a submarine works, elementary electric simulation
  • Geography – Find out about country locations, Place the country on the map
  • Games – Learn how to play chess, improve memory and memorization, sudoku etc.
  • Reading – Learning to read fluent, reading practice
  • Learn to proerply tell time, solve puzzle games and learn famous paintings, basic cartoon making, vector drawing

Gcompris reading activities

All the funny activities Gcompris educative kid tool offers 100+. Gcompris is in active development so with time more and more activities gets added.
Gcompris is a Free Software and among with its native GNU / Linux support it has ports for Windows and Mac OS X

The Free Software nature of Gcompris gives possibility to be easily adapted and further developed! Its really funny not only for kids, but even for adults. If you had a stressy day and you want to relax in a childish way and feel like a kid again, give it a try and you will be amazed how much light and happiness this computer program can bless you with 😉

Many of Gcompris activities has a little cute penguins and in general its capable of introducing the kids to the nice concept of the free software.

As a free software Gcompris is really great as among the rest of the so popular free software freedoms: to distribute and modify the software it comes absolutely free of charge (in money terms). This is great news for parents who are growing their kids in the “developing world”, the so called 2nd and 3rd world as well is a good alternative to the many available paid costly application and games aiming at kids brain development.
Gcompris puzzle games

The name Gcompris is also known in free software realm under the name I GOT IT .Gcompris has currently Sound and text support for 33 Country Languages, here is a completele list of languages currently supported:

Arabic, Asturian, Bulgarian, Breton, Czech, Danish, German, Greek, English, Esperanto, Spanish, Basque, Finnish, French, Hebrew, Indian, Hungarian, Indonesian, Italian, Indian, Norwegian, Dutch, Norwegian, Punjabi, Portuguese, Portuguese, Russian, Somali, Serbian, Swedish, Turkish, Urdu, Chinese

Some of the languages supported still does not have a 100% translation but partially translated as its a question of time that enough translators are found to make the translations for all available major languages. The only 100% completed trasnlation as of time of writting is in French, Slovenian and Spanish

Gcompris is already included in almost all available moderm GNU / Linux distributions. A packaged version of it is part of Fedora, Debian and Ubuntu.

Gcompris Mathematics

For all those parents who wish to educate their children on Fedora Linux install it with the GUI installer or yum with cmd:

[root@fedora ~]# yum install gcompris

On Debian and Ubuntu Gcompris is installable via apt from repos:

debian:~# apt-get install gcompris

To add a text and sound translation to Gcompris its also necessery to install the relevant gcompris-sound distribution package, for example to add the sound translations for my native Bulgarian language I had to install the package gcompris-sound-bg, e.g.:

debian:~# apt-get install gcompris-sound-bg

Gcompris is developed to use the Gnome’s GTK and is a perfect match for Linux users who already run a Gnome Desktop on their PCs.

Most of Gcompris versions should run without much hassle on Mac OS X and Windows so all mommies and daddies on Windows or Mac can install it and use it to educate their kids 😉

Here are few more screenshots of Gcompris

Gcompris children intellect develop Experimental activities

Gcompris educational kids develop intellect Discovery activities
Gcompris various games for develop your kid intellect
Gcompris also fits well with  Tux for Kids Linux / Windows ready games also suitable for kids development. Gcompris and Tux for Kids makes Linux and  free software more “children mature” and is a perfect to be used on kids educational computers in kindergartens or any educational institutions aiming at children development. 

To sum it up, if you want to make your children smarter or you’re bored to death and you need to have some rest by going back to your childhood years give gcompris a try 😉