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Black Belt Sorvi Hero
by Pizzalaatikko
for Windows, Linux and Nokia N900.
Can be also ported to Android with small effort.
Copyright 2011 Janne Kulmala <>,
Antti Rajamäki <>
Winner of the game development competition at Assembly summer 2011.
Program code and resources are licensed with GNU LGPL 2.1. See
Are you able to handle the difficulties of turning? Your job is to carve
a given shape out of wood with a chisel. The better you match the shape
and more accure job you do, the better score you will get. With earned
score you can buy new faster and stronger chisels. Watch out for going
too fast, as you might overheat your chisel or break the wood!
You can try to beat the high scores of other users on Internet by
playing through all the levels!
Janne 'Japeq' Kulmala - Code, graphics, models
Antti 'Amikaze' Rajamäki - Models, graphics, sounds
Required programs and libraries
The following programs and libraries are required to compile the game:
- GCC C++ compiler
- SDL 1.2
- SDL_ttf 2.0
- GLEW >= 1.5
- libvorbis
- libpng
- OpenGL
Installing the required packages on Fedora (as root):
$ yum install gcc-c++ SDL-devel SDL_ttf-devel glew-devel libpng-devel \
libvorbis-devel mesa-libGL-devel mesa-libGLU-devel
Installing the required packages on Ubuntu (as root):
$ apt-get install g++ libsdl1.2-dev libglew-dev libsdl-ttf2.0-dev \
libpng-dev libvorbis-dev libgl1-mesa-dev libglu1-mesa-dev
Compiling on Linux:
$ rm *.o
$ make
Will result in BlackBeltSorviHero.bin that can be executed.
High scores
The high scores on the server are accessed with HTTP. The actual highscore
list is stored as a text file, called 'BlackBeltSorviHero/highscores.txt'.
The game submits new highscores to the server by doing a HTTP POST request
to 'BlackBeltSorviHero/submit.php'. The game fetches the highscore list by
fetching the text file with a HTTP GET. The host name of the highscore
server is defined by HIGHSCORE_SERVER in ''.
The validity of the highscore submissions is verified with a signature.
The signature is sent in the POST request and includes the player's
name, the score and a secret key. The server checks that it can produce
the same signature as the game binary, and thus the game and the server
should agree on the secret key. The secret key is stored in
HIGHSCORE_SECRET_KEY in '' and 'submit.php'.
Cross compiling for Windows on Fedora
You will need mingw installed on your system. Mingw can be installed with:
$ yum install mingw32-gcc-c++ mingw32-SDL mingw32-freetype mingw32-libpng \
Mingw packages for GLEW and SDL_ttf are not available on Fedora, and
have to be compiled and installed separately.
GLEW can be installed as follows:
1. Download and extract glew-1.6.0.tgz
2. Compile with:
$ make SYSTEM=mingw CC=i686-pc-mingw32-gcc LD=i686-pc-mingw32-gcc
3. Install by executing as root:
$ cp lib/libglew32.a /usr/i686-pc-mingw32/sys-root/mingw/lib/
$ cp include/GL/*.h /usr/i686-pc-mingw32/sys-root/mingw/include/GL/
SDL_ttf can be installed as follows:
1. Mingw "freetype-config" is broken and can be fixed by executing as root:
$ sed -i -e 's/pkg-config/i686-pc-mingw32-pkg-config/g' \
2. Download and extract SDL_ttf-2.0.10.tar.gz
3. Compile with:
$ ./configure --host=i686-pc-mingw32 \
$ make
4. Install by executing as root:
$ cp SDL_ttf.h /usr/i686-pc-mingw32/sys-root/mingw/include/
$ cp libSDL_ttf.a /usr/i686-pc-mingw32/sys-root/mingw/lib/
To compile, execute the following:
$ rm *.o
$ make -f Makefile.mingw
To build a distributable zip package that includes the Linux and Windows
versions, run the following. Both binaries must be built before hand and
the required .dll files must be copied to the source directory.
$ make release
Cross compiling to Nokia N900
The game can be compiled to N900 inside Scratchbox environment. The game
requires development files to compile. The files can be installed inside
Scratchbox with:
$ apt-get install libsdl1.2-dev libglew-dev libsdl-ttf2.0-dev \
libpng-dev libvorbis-dev
To compile, execute the following inside Scratchbox:
$ rm *.o
$ make -f Makefile.n900
Installable Debian package can be created with:
$ make -f Makefile.n900 package