Well. This is my physics engine update. GitHub page: https://github.com/ConfusedTick/Open-Physics/
https://confusedtick606.itch.io/open-physics
Added new GUI features, saving, loading, improved performance, improved physics. Looking forward to making collisions. I think the main fun of this game is heat radiation render. Well, this is only demo, this is not a final version. Fell free for help.
Source: itch.io