[Map] one-way level changing

[PITink]

Hey there!
I was wondering if you can change the height level of two tiles like falling down somewhere.
I mean like you have a bridge with a 3C level and if you run down from that tile you're landing on a C block next to it, but can't get up without using a 0 block.
Alternatively I'd accept a way to exit a block to the left/right, but not being able to enter it from the same side.
Thanks in advance

 

[DrFuji]

The scripting command 'setmaptile' can change the movement permission of a tile to 0x0 or 0x1 so if you step on a script you can change that. Its not exactly perfect and you will probably have issues if you're trying to emulate somebody falling off a bridge unless its set up correctly, but it can work.

Your alternative idea is definitely workable though. Tile behaviour bytes 0x30 - 0x37 prevent the player from moving in certain directions if they're standing on the tile. A place where you can see this in action is the Chairman's sofa at the top of Silph Co. In this particular case it creates a seam running across the back of the sofa that you can't pass when travelling up/ down. If you only use one tile with movement restrictions rather than two, you can create a situation where the player can walk in, but they can't walk out. I can't think of any better examples of it in-game so check it out.