http://ProcessingJS.NihongoResources.com/test/PjsGameEngine/
http://ProcessingJS.NihongoResources.com/test/PjsGameEngine/docs/tutorial/mario.html
https://GoSubRoutine.GitHub.io/PjsGameEngine/codebase/
https://Forum.Processing.org/two/discussion/24639/overall-help-for-using-processing-js#Item_2