rather promiscuously to pass around information that ought to be function
arguments in a modern language.
-* Remaining unstructured gotos in playermove() and do_command(). The goto L12
- in playermove() is particularly horrible, jumping backwards into the
- middle of a loop.
+* Remaining unstructured gotos in do_command().
+
+* The program is still pretty much typeless - full of magic numbers being
+ sliced and diced in cryptic ways. Some attempt has been made to introduce
+ semantic types, but the job is barely started.
-* The way return values from handlers such as 2012 trigger side effects
- based on global state is nasty.