You are right- the gameplay is getting to be more & more complicated. I'm trying to have as simple gameplay routines as I can but sometimes it's not really possible. The coal thing is standard pick-up object action &, I guess, the smoke thing could be made universal in sense of action that changes if variable is modified but the guard coming down to inspect could be more difficult for you to make universal
I will be uploading a bit enhanced level 4 (chapter 3 prototype level) tomorrow evening & I will take this opportunity to also add some of my 2D animations to the level (there will be a key to turn them on/off) just for fun & so that we can see if they could (approximately) fit the visual aspects or not
