How can you make lakes/rivers/oceans that the player can swim through?
You'll have to do some stuff. You should change terrain values for water on the autotiles options. Then, edit the model Hero so it's changing the graphics/speed when your hero is on water terrain.
Check the Events on you hero, especially "Time"(repeat ON), and check command change variable to get terrain ID of hero, and then command change graphics.
In the map editor, when I try to choose the subtype "autotile", the subtype doesn't change. Is this a bug? I'm running Ubuntu 19.10.
@caarfken I think it's a bug related to the OS. Someone mentioned having this also in a version of MacOS. A web version of RPG Paper Maker should solve a lot of issues related to OS.
Thanks! When is the web version coming out
@caarfken It's planned for 2023, currently in development! There will be some prototypes soon.