ontilewall + ontilewall2

[fowlplay4]

Just thought id be handy to have in those situations where you don't exactly care if there's a player or some kind of NPC in the way, it would look past those and go to the tile source to check for a wall.

I'm sure to some extent this could be mimic'd using tiletype but it'd be cool to have built-in.

ontilewall(x, y)
ontilewall2(x, y, tilewidth, tileheight)