ref: d46099e3afa9681a4f98e0d2574c2ad65820ed7e
dir: /sys/games/lib/life/fusehinge/
x..................... .x.................... ..x................... ...x.................. ....x................. .....x................ ......x............... .......x.............. ........x............. .........x.....x...... ..........x...x.x...xx ...........x..x..x..x. ............x.x...x.x. .............x.....x..