This fixes the Door animation so that when you enter a door and exit around the same general area, the door you entered from closes automatically.
Also added some fixes for the Level Editor where after leaving the playtest mode, the number of keys you have resets to 0 and the locked doors re-lock.
my first commit and change to smb1r, i hope things are working alright
- 9-1a: added missing elevator platform at the start
- 9-3: L pipe is now accessible and sends you to coin heaven like the original (however i hope walls and the hardcoded thing cooperate...)
- 9-3: fixed a missing staircase tile near the end, probably removed to be easier but its part of og level design so...
