Please refer to the ufoai source package for more information how to retrieve
the original sources.

The game consists of four source packages:
 * ufoai:           the engine
 * ufoai-data:      models, images and shaders
 * ufoai-maps:      textures and maps
 * ufoai-music:     music and sounds

Naturally all those source packages belong together and represent one game. Due
to the size of the data, the game was split into three separate source packages. That
allows us to save bandwidth and time since the whole data must be rarely
updated. Usually it is only required once to update all data for major releases which
happens approximately every 2 years. Thus all information about creating the
source tarballs can be found in src:ufoai because it is the smallest source
package and the central point of making the whole game work.

Since there are no corresponding upstream tarballs, the get-orig-source target
in src:ufoai creates the Policy compliant source tarballs out of upstream's git
repository. Whenever someone has to make changes to the upstream sources, he or
she should take a look at debian/rules in src:ufoai and simply adjust the
get-orig-source targets for her needs and shortly document in this README.source file
what files had to be updated and why.
