So Google searches proved to be of no help. I thought someone would have done this by now: allow the user to have more than 7 autotiles for their maps. I've been thinking it over, but couldn't come up with a great idea.
In my Advance Wars engine, I have a lot of tiles that need to animate. I still want to be able to access these tiles with tile_id. Also note that I would like this to be easily editted (I plan to release the engine for others to tweak and play with it).
My original idea was to create a graphic that contained all the animated tiles and their respective animating frames, then, when drawing the map, check each tile_id for a specific ID and draw the 32x32 graphic onto the Map's bitmap. Then, animate these graphics every 0.5 seconds (how would I even know what tiles need updating? Store the information into an array?). I thought about editting someone's Tilemap class and change how autotiles worked, but wasn't sure if something like this could be easily done that way.
Grateful for any ideas (or a script if you somehow found one).