535657 (1) [Avatar] Offline
At the end of chapter 3.1.3 on page 56, there is a warning about pressing Esc to unlock the cursor after clicking play mode.

There could be a note about pressing Ctrl+P (Cmd+P on Mac) to enter/exit play mode.
I was on the Linux version of Unity editor and Esc didn't work.
jhocking (201) [Avatar] Offline
ah I'll have to look into what Linux does there. I use Unity on both Mac and Windows, but have never used it on Linux.