A voxel/block building game for the FunKey S.
Includes basic blocks, plants, functional redstone, TNT and a programmable computer block.

D-Pad: Look (up/down/left/right)
A: Place block or interact with block
B: Remove block
X: Move forward
Y: Jump
Start: Open inventory
Select: Switch hotbar slot
L/R: Switch inventory tab

Required libraries (debian package names):

libsdl1.2-dev
libsdl-image1.2-dev
libsdl-mixer1.2-dev
libmikmod-dev

KeyCraft uses TinyGL for rendering.

Since the FunKey uses 16-bit color, adjusting include/zfeatures.h is required:

#define TGL_NO_DRAW_COLOR 0xf81f

#define TGL_FEATURE_16_BITS        1
#define TGL_FEATURE_32_BITS        0

Compile TinyGL via

gcc -O3 -flto -c *.c
ar rcs libTinyGL.a *.o

for linux and via

/opt/funkey-sdk/usr/bin/arm-linux-gcc -O3 -flto -c *.c -march=armv7-a+neon-vfpv4 -mtune=cortex-a7 -mfpu=neon-vfpv4
/opt/funkey-sdk/usr/bin/arm-linux-gcc-ar rcs libTinyGL-fk.a *.o

for the FunKey.

Then adjust the TINGYGL_LIB and TINYGL_INCLUDE paths in the makefile and funkey.mk.

Finally, you can compile the project with make.
make debug creates a debug build for linux.
make TARGET=funkey creates a FunKey build.
make oclean cleans up object files. Required before switching between linux and FunKey builds.
./package.sh combines several commands to create a ready-to-go OPK file for the FunKey.