= Get it Running =
[[TracNav(TracNav/TOC)]]
== Gentoo ==
  1. Get the ebuild: source:/trunk/scripts/gentoo#HEAD (download newest ebuild)
  1. Change to root user 
{{{
wraith root # su -
}}}
  1. Copy the ebuild to /usr/portage/games-action/orxonox (and create new directory)
  1. 
{{{
wraith root # cd /usr/portage/games/action/orxonox
wraith root # ebuild orxonox-*.ebuild digest
wraith root # emerge orxonox
}}}

From now on you should be able to play Orxonox, and if you have subversion installed and a login, you will also be able to develop.

=== Installing the Libraries ===
Install the following libraries:
 * SDL main, media-libs/libsdl, web: http://www.libsdl.org/ 
 * SDL_image, media-libs/sdl-image, web: http://www.libsdl.org/SDL_image
 * SDL_(true type fonts), media-libs/sdl-ttf, web: http://www.libsdl.org/SDL_ttf
 * SDL_net, media-libs/sdl-net, web http://www.libsdl.org/SDL_net
 
Here are the commands to enter:
{{{
wraith root # emerge media-libs/libsdl
...
wraith root # emerge media-libs/sdl-image
...
wraith root # emerge media-libs/sdl-ttf
...
wraith root # emerge media-libs/sdl-net
...
}}}
Gentoo is now ready to compile and then run Orxonox.[[br]]


=== Getting the Source Code ===
First of all you have to install subversion on your system: Make sure, that you have '''ssl''' included in your ''make.conf'' file:[[br]]
'''/etc/make.conf'''
{{{
 ...
 USE="..., ssl, ..."
 ...
}}}
now emerge subversion
{{{
wraith user # emerge subversion
}}}
Check out the source via anonymous subversion login. This will download the whole project to the directory orxonox-dir.
{{{
wraith user # svn co http://svn.orxonox.net/orxonox orxonox-dir
}}}
You won't be able to commit your own code (check in) with the anonymous subversion repository. You have to ask us for a username/password combination. If you already have an account, check it out like this:
{{{
wraith user # svn co https://svn.orxonox.net/orxonox orxonox-dir
}}}
You will be asked for your username and password, that you got from us. 


=== Compiling ===
Just change into the trunk directory, then execute configure and make....
{{{
wraith user # cd ./orxonox/trunk/
wraith user # ./autogen.sh
wraith user # ./configure
...
wraith user # make
...
wraith user # cd src
wraith user # ./orxonox
}}}


=== Profiling ===
If you want to profile Orxonox (measure its performance) you will probably want to view the statistics in a special program like kprof. On Gentoo systems you can just emerge it:
{{{
wraith root # emerge kprof
}}}
Orxonox runs much much slower with profiling enabled.
{{{
wraith user # cd ./orxonox/trunk/
wraith user # ./configure --enable-profile
...
wraith user # make
...
wraith user # cd src
wraith user # ./orxonox
}}}
Orxonox now runs very slow and writes its profiling stats to a file called gmon.out. Remember that _only_ the functionalities you use while profiling will be profiled (since the profile log is written while the program is been executed). [[br]]
After you exit the Orxonox, you can parse the output file and then be able to open it in kprof:
{{{
wraith user # gprof -b ./orxonox > text.out
wraith user # kprof -f text.out
}}}
For more documentation see the [wiki:DevelopmentResources development resources].