I haven’t received much feedback on the previous platformer engine articles (part I and part II) but I kept working on some features anyway. So far I implemented slopes, one way platforms and now moving platforms (that move on slopes as well). Moving platforms can carry more than one object and I’ll probably keep adding other new, neat features.
I might find some time to add conveyor belts and write a tutorial in the coming weeks. In the meantime let me know what you think and if you need me to add other features I haven’t thought of.