#2, by afrlmeMonday, 26. October 2015, 19:48 8 years ago
Just use objects. You can hide / show them with the set object opacity action part or you can assign conditions to them to control when they should be active / displayed.
I'm not sure how the engine would react to updating background image sprite path / file during runtime as the engine calculates the scene height & width based on the height & width of the assigned background image. This also tells the engine whether or not the scene in scrollable.