How can I combine Ren’Py with complex gameplay?

[polisummer]

I’m making an action adventure game in raw python + an external library. I want it to be story driven, so I’m going to use Ren’Py for the dialogue and story CGs. What is the best way to use Ren’Py with more complex gameplay logic (or vice versa)? The only game I know of that does something similar is Sakura Dungeon. How would I switch the gameplay style from a usual Ren’py scene to my custom gameplay and then switch back like them?

[PyTom]

https://www.renpy.org/doc/html/udd.html

You probably want the Creator-Defined Displayable documentation, though it depends on how complex the gameplay logic needs to be. Note that you generally can't just plug arbitrary python into Ren'Py. At this point, Ren'Py has a custom OpenGL-based rendering system that non-Ren'Py code often isn't made to accept.