I still make my experience with Processing scince August 2018.
Now my Game get a new function, a build in editor.
At this time the game is only availible in german language.
its a difficould game, i hope, but easy to use.
its GNU GPL.
Now i have ported these games for Windows, Linux, Android.
Looking good mate, really
It fine to have some positive feedback.
In the beginning it work just somehow.
I think processing is a good choice,
because of some tricks it make possible.
scaling buttons for my editor.
I hope you will update your workflow from time to time here? 
yes!
i now try a little space shoter.
just hit the blue or red targets with left or right mouse klicks.
in the new alfa the targets move.
i hope to get a anroid smarty soon to try some ports.
i have many ideas to improve it, but some releases are good as they are.
https://github.com/XQSkys/QubeC/blob/master/QubeC_V_0_2_5_2_Alfa_win64.7z
this is the new realese:
now with a little skill sytem, mouse interaction with targets, level, level bounus.
Boss is a must have, i think about it.
The Blue Targets beam Force by clicking with right… the other enemy hits tho left button.
greats JAN