ref: 9d8ed749fca3aac920f9d5ebd893d3f6c45ce4b6
dir: /examples/pendulum.orca/
......................................... .# PENDULUM #............................ ......................................... ........U.......E......U................. ................J........................ ...............B.H....................... ................gS....................... ......................................... ......................................... ......................................... ......................................... ......................................... .........................................