- First: Basically this adds another physical tile above the base tile. This is how doors, caves, higher platforms, the Nimbus Land vines, etc, work.
Taken directly from the Help Window:
Height of overhead tile
An overhead tile is a solid tile that floats above the base tile. This is its height. If this is set to 0, there is no overhead tile.
Z coord of overhead tile
The elevation of the overhead tile. This value must be greater than or equal to the base tile's height.
- Second: I would support you on this, but I'm still having trouble fully using these right. The Help Window explains it:
P3 for object on edge
Mario or any NPCs on top of the tile's edges will overlap all other map layers.
P3 for object over edge
Mario or any NPCs above the tile's edges will overlap all map layers.
P3 for object on tile
Mario or any NPCs on the surface of the tile will overlap all map layers.
- I don't know anything about it not working if the third is checked. Could it be this is priorities 1 and 2 put together?
- I've usually seen them placed in front of L2 tiles. I can't exactly give you much else on this. Sorry.
And you're welcome. Feel free to ask any time. There is also documentation for those in need of help with this kind of stuff. This can be found in the home window of the editor, or by simply clicking the
in any of the main editor windows and hovering over the item in question.
I hope this can help you on your way.