Player can walk over wall / roof tiles - why?

I just designed a new map area, and for whatever reason, on this map the player can just walk up the walls or on roof tiles. I do not know why, at all. There are no items on the walls that lead them up, and on the tileset manager thing, the tiles have X over them, not O or stars. It's the default Inside A4 tiles that's doing it, too, but not on any other map. They're in the right slot also, I checked. I'm new so maybe I'm missing something but I can't see any reason why anything should have changed.

I'm using RPG Maker VX Ace, and I don't have any scripts or events or anything running. I tried changing the wall, roof and floor tiles to different things, even custom sets, but it keeps happening.

(Image for example)

Did you make the player through on a event and forgot to turn it off?

No, there are no events running.

It's something to do with the tileset, everything is exactly the same as the default 'Interior' set, and if I change to interior it works fine. But with everything the same on this one, if I change to this one, they walk up / over the walls (tested it on a new map). The only difference between them is the item sets, but I don't see how that's causing it, since there aren't any even placed.

Did you place any Tile B or Tile C or Tile D transparent tiles over it that had "O" ticked? Because placing tiles over the A tiles that have "O" on them can sometimes make these tiles passable. If that makes sense.

first you might check in your tileset tab in the data base and see if the tiles are "O"s or "X"s

whoops didn't see cashmere cat's post.

I'm fairly sure not. I did double check I hadn't done something like that by creating a whole new map and just putting down floor and walls - which is the map that's shown in the attached picture - and it did it straight away. Thanks for the suggestion though, I hadn't thought of it, so at least that one won't happen in the future.

Is the first tile in TileB set to a star?

I know that's an important thing, but what's the point of it?

Can you have different effects happen if you make it passable or blocked?

The first tile in the TileB goes over all other tiles. Setting it to "O" allow the player to walk over everything, and setting it to "X" makes everything unpassable. Setting it to a Star keeps the setting you made for all the other tiles.

If that's true, then the game engine is capable of three level tiling (at least...).

Would be nice if they let us use it.

On your map, every position has a ground tile (from tile A) and an overground tile (from tile B ). The overground tile defaults to the top left tile of tile B (which is also the one you should use if you want to erase an upper-layer tile). You can't see it, but it's there.


Wherever you put a tile B-E tile, the game will use the passability of that tile. But wherever you have NOT put a B-E tile, the default tile from B (top left corner) is there. That's why if you change the passage settings on that tile, you change it for almost the whole map - except those tiles where you HAVE placed a different B-E tile.


That top left tile B tile must be left blank, and have a star for passability/priority.