Tell AI to avoid edges, especially ones over water (this does not include checking whether a knock could drown yet). Also make flakes pick a new random dx/dy on respawn to further reduce patterns. Also disable a couple of weapons for the particularly dumb AI levels, and disable switching for the dumbest.

#! /usr/bin/sed -nf

s/^#define  *FREETYPE_MAJOR  *\([^ ][^ ]*\).*$/freetype_major="\1" ;/p
s/^#define  *FREETYPE_MINOR  *\([^ ][^ ]*\).*$/freetype_minor=".\1" ;/p
s/^#define  *FREETYPE_PATCH  *\([^ ][^ ]*\).*$/freetype_patch=".\1" ;/p