Grimrock

I tried making a pillar with replaceWal ... anything.

I don't think it works against them

The best way to do this would be defining decorations that use whatever wall models you like and typing the line replacesWall = true,
As for the pillars, I am unsure.
Perhaps if you add the line killPillars = true,
you could place whichever pillars you like.
Just a theory, I've only seen that line used on doors.

The problem I seem to have discovered is that the dungeon tileset is randomly generated except when it's not.

Has anyone else noticed a floor drain where they never put one? I've noticed it most when i put pillars into a room then forgot to remove them when i shrunk said room and once I've loaded up the dungeon in the game i get the visual glitching of a placed pillar fighting for space with a generated pillar.

HaunterV wrote:The problem I seem to have discovered is that the dungeon tileset is randomly generated except when it's not.

Has anyone else noticed a floor drain where they never put one? I've noticed it most when i put pillars into a room then forgot to remove them when i shrunk said room and once I've loaded up the dungeon in the game i get the visual glitching of a placed pillar fighting for space with a generated pillar.

That is a matter of facing, I believe.
Floor drainages are randomly placed. You could stop this by removing that line out of the wallset lua

You can place a normal pillar in an open area and move it (with WASD) against the wall to replace the wall-pillar.

Edit: This doesn't work, I need to learn to test my theories properly before speaking.