Mirror

[Kirko]

Since testbed back I'm trying to make some new stuff and thought I could try to make a mirror but I no idea on how I would make the tiles show on the mirror. The only way I could think of is to make a screenshot of a specific spot of where I want a mirror.
I thought I would ask here if anyone has any idea how to do this. I just seem to stuck on the tile issue. I sorta have an idea on how to show the player in the mirror with showani possibly but want to get the hard things out of the way first.