I tried adding the floor using Tiled and TexturePacker — I really did. Unfortunately, it does not appear to be working and I really don’t have time to fix it now. The code and files are all there, so it probably won’t be too hard to get it working once I do find time. I do have a question about it though. Why is there no callback to let us know when it has finished loading?
And speaking of the asset loader and atlases, I asked the following question on the Udacity forum and as far as I know at the time of this writing there has been no reply yet. Here is the question: