Invisible Rooms?

Is there anyway to make a room (and passage to) invisible, then become visible as you walk into the passage/room? I can't find a way or script anywhere.

several ways, depending on what exactly you want to do.


1) visibility scripts - there are a few scripts that allow you to place black covers over tiles that should not be visible. They are usually intended to provide line-of-sight features, but they could easily be adapted to cover secret passages


2) Tsukihime's tileswap script - you change the tiles when the player enters the area


3) use the show picture command to place a black picture over part of the map


and a few more complex solutions. Which one is best depends on what map you have..

Tried the tile swap, and it worked great! Thanks!