-* The remaining shared globals: K, SPK, WD1, WD1X, WD2, WD2X. These are used
- rather promiscuously to pass around information that ought to be function
- arguments in a modern language. K and SPK are particular offenders
-
-* Remaining unstructured gotos in playermove() and do_command().
-
-* The way return values from handlers such as 2012 trigger side effects
- based on global state such as K and SPK is nasty.