Adding the floors and type checking

One of the things that look odd with a 360 Pano background, as we've talked about before, is that you can seem to "float" against the ground. One fix, other than fixing the original image, is to simply add a floor. This is what we did with the Space Gallery, and it looks pretty good as we were assuming we were floating in space anyway.

For this version, let's import a ground square. We could use a large square that would encompass the entire Maze; we'd then have to resize it if the size of the Maze changes. I decided to use a smaller cube and alter it so that it's "underneath" every cell of the Maze. This would allow us some leeway in the future to rotate the squares for worn paths, water traps, or whatever. ...

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